Product Description
Product General Technical Information
The electric roller is a new type of drive device which is placed n the roller body together with the motor and the reducer.
It is mainly used in fixed and movable type belt conveyors, to replace traditional types, in which motor, gearbox are separated with the drum.
The electric drum can run under a severe particulates environment; can withstand the flow of water and spray, can resist most of the erosion environment.
Due to the protection level, IP66 and stainless steel material have required, electric roller also applied to food processing, pharmaceutical and other industries.
The electric drum is driven by an AC asynchronous induction motor, suitable for most of the international common voltage, also can be customized according to customer requirements.
The electric roller contains oil as a lubricant and coolant, heat dissipation through the roller the transfer of heat.
When using an electric drum without a conveyor el, a special design can be carried out to ensure that the cooling.
integrated thermal protection: integrated constant temperature protection switch in the motor winding end. When the motor is overheating, the switch is switched on.
However the switch must be connected to a suitable external controller, the controller can interrupt the current conveyor to the motor in case of overheating.
integrated electromagnetic brakes: the integrated electromagnetic brake can delay and stop the weight of the given conveyor belt. It will directly affect the axis of the electric roller, driven by a DC electric rectifier.
Mechanical anti-reversing device: a mechanical anti-reversing device mounted on a rotating shaft can be used to increase the conveyor. In the case of current interruption, it can inhibit the transfer of the backward running.
Rotary encoder: the pulse can be used to position and control the speed and direction of rotation.
Technical Parameters
| Protection Level | IP66 |
| Ambient Temperature Range for General Application | +5ºC ~ +40ºC |
| Environmental Temperature Range of Low-Temperature Application | -25ºC ~ +15ºC |
| Cycle Time | Start/stop at most 3 times per minute. Using frequency converter or the use of special structure, the time may be higher |
| Mounting Height | 1000m Maximum Elevation 1000m |
| AC Drum Motor | ||||||||
| TMX | 138 | S | 250 | 2P | 350 | 0.56 | A | T |
| Product Code | Drum Code | Rated Power Capacity | Phase Number and Voltage | Pole Number (AC) | Drum Length | Linear Speed | Drum Shape | Drum Material |
| TMX – Oil Cold Overload Type
DG – Natural Cooling Type |
The diameter of the drum body is indicated, such as 80, 113, 138, 165, 216, 320, etc. | The rated power of the motor, such as 100W~5500W, is omitted in model W, and the digital representation is used. For example, 1100W with 1100 | Stands for single-phase 110V C stands for single-phase 220V S stands for three-phase ac 220V S3 represents three-phase 380V S4 represents three-phase 440V V represents non-standard voltage (voltage must be indicated when V is present) |
2P is the second pole 4P is the fourth pole 6P is the 6 pole 8P is the eight-pole |
The actual length of the cylinder is numbered and the unit mm is omitted. For example, 350mm with 350 | According to the actual linear velocity, the number of unit m/s is omitted. For example, 0.56m/s is expressed as 0.56 | A – Cylindrical Drum Body B – Drum Drum Body |
The default T is carbon steel, not standard, other: B3 – stainless steel 304 X – surface galvanizing G – surface hard chromium J – package wear-resistant rubber |
| TMX113 Mechanical Parameters Of Three Phase Drum Motor | ||||||||
| Rated Power | Motor Series | Gear Box Series | Reduction Ratio i | Rated Speed | Rated Speed | Rated Torque | Traction Force | Min Tube Length |
| KW | RPM | m/s | Nm | N | mm | |||
| 0.12 | 4 | 2 | 8.7 | 161 | 0.95 | 6 | 106 | 355 |
| 11.84 | 118 | 0.7 | 9 | 159 | ||||
| 15.23 | 92 | 0.54 | 11 | 195 | ||||
| 18.5 | 76 | 0.45 | 13 | 230 | ||||
| 20.72 | 68 | 0.4 | 15 | 265 | ||||
| 22.7 | 62 | 0.36 | 16 | 283 | ||||
| 32.38 | 43 | 0.26 | 23 | 407 | ||||
| 39.84 | 35 | 0.21 | 29 | 513 | ||||
| 51.8 | 27 | 0.16 | 37 | 655 | ||||
FAQ
Q: How about your company?
A: We are a gear motor factory established in 1995 and located in HangZhou city of china.
We have more than 1200 workers. Our main product is AC micro gear motor 6W to 250W,
AC small gear motor 100W to 3700W, brush DC motor 10W to 400W, brushless motor10W to 750W,
drum motor 60W to 3700W, planetary gearbox,and worm gearbox,etc.
Q: How about your quality control?
A: From raw material to finished products, we have strict and complete IPQC.
And the advanced test-ing machine can assure of qualified products delivered.
Q: How to choose a suitable motor?
A: If you have gear motor pictures or drawings to show us,
or you tell us detailed specs like volt-age, speed, torque, motor size, the working model of the motor, needed lifetime and noise level, etc.
please do not hesitate to let us know, then we can suggest a suitable motor per your request.
Q: Can you make the gear motor with customizing specifications?
A: Yes, we can customize per your request for the voltage, speed, torque, and shaft size and shape.
if you need additional wires or cables soldered on the terminal or need to add connectors, or capacitors, or EMC we can make it too.
Q: What’s your lead time?
A: Usually our regular standard product will need 10-15days, a bit longer for customized products.
But we are very flexible on the lead time, it will depend on the specific orders.
Q: What is your MOQ?
A: If delivered by sea, the minimum order is 100 pieces, if deliver by express, there is no limit.
Q: Do you have the item in stock?
A: l am sorry we do not have the item in stock, All products are made with orders.
Q: How to contact us?
A: You can send us an inquiry.
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Application: | Industrial |
|---|---|
| Speed: | Constant Speed |
| Function: | Driving, Control |
| Casing Protection: | Closed Type |
| Certification: | ISO9001, CCC |
| Brand: | Gpg |
| Customization: |
Available
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How does the lack of brushes in brushless AC motors contribute to their longevity?
The absence of brushes in brushless AC motors significantly contributes to their longevity and overall durability. Here’s how:
1. Reduced Wear and Tear: Brushes and commutators in traditional brushed motors are prone to wear and tear due to the constant friction and mechanical contact. As the brushes make contact with the commutator, they experience abrasion and gradually wear down over time. In brushless AC motors, the lack of brushes eliminates this source of wear, resulting in reduced mechanical stress on the motor components.
2. Elimination of Brush Dust Accumulation: Brushed motors generate carbon dust as the brushes wear down. This dust can accumulate on the commutator and other motor parts, potentially causing electrical shorts, sparking, and reduced motor performance. In brushless AC motors, the absence of brushes eliminates the generation of carbon dust, reducing the risk of dust accumulation and related issues.
3. Minimized Brush Sparks: Brushes in brushed motors can produce sparks during operation, leading to electrical arcing and potential damage to the commutator and brushes themselves. These sparks can also introduce electrical noise and interfere with sensitive electronic components. Brushless AC motors, with their brushless design, eliminate the occurrence of brush sparks, resulting in smoother and quieter operation.
4. Improved Commutation: In brushed motors, the commutator is responsible for transferring electrical power to the rotor windings through the brushes. This mechanical commutation introduces limitations in terms of speed, torque, and reliability. In contrast, brushless AC motors employ electronic commutation, which is more precise and efficient. Electronic commutation eliminates the need for physical contact, allowing for greater control over the motor’s performance and reducing the potential for commutation-related issues.
5. Enhanced Electrical Efficiency: Brushes and commutators in brushed motors can cause energy losses due to friction and electrical resistance. These losses result in reduced overall motor efficiency. By eliminating brushes and commutators, brushless AC motors minimize energy losses, leading to improved electrical efficiency and reduced heat generation.
Collectively, these factors contribute to the longevity of brushless AC motors. The absence of brushes reduces mechanical wear, eliminates brush-related issues such as dust accumulation and sparks, allows for more precise electronic commutation, and improves overall electrical efficiency. As a result, brushless AC motors can operate reliably for longer periods with minimal maintenance requirements, making them a durable and long-lasting solution for various applications.
How does the speed control mechanism work in a brushless AC motor?
In a brushless AC motor, the speed control mechanism relies on precise control of the motor’s electrical power input. By adjusting the frequency and voltage of the AC power supplied to the motor, the speed of the motor can be controlled. Here’s a detailed explanation of how the speed control mechanism works:
1. Electronic Commutation: Brushless AC motors use electronic commutation to control the timing and duration of current flow in the stator windings. The commutation process determines which winding is energized and in what sequence, creating a rotating magnetic field that interacts with the rotor magnets. By controlling the electronic commutation, the speed of the motor can be regulated.
2. Pulse Width Modulation (PWM): Pulse width modulation is commonly used to control the voltage supplied to the motor. In PWM control, the voltage is rapidly switched on and off at a fixed frequency. By varying the width (duration) of the on-time or off-time periods, the effective voltage applied to the motor can be adjusted. This modulation technique allows for precise control of the motor’s speed.
3. Speed Feedback: To maintain the desired speed, brushless AC motor control systems often incorporate speed feedback mechanisms. These mechanisms typically use encoders, tachometers, or other speed sensors to measure the actual speed of the motor. The feedback signal is compared to the desired speed setpoint, and the control system adjusts the power supplied to the motor accordingly to maintain the desired speed.
4. Control Algorithms: Control algorithms are used to process the speed feedback signal and generate control signals for the motor. These algorithms can be implemented in dedicated motor control chips or in software running on microcontrollers. The control algorithms take into account the speed error (difference between the desired speed and actual speed) and adjust the power input to the motor to minimize the error and maintain a stable speed.
5. Variable Frequency Drive (VFD): In many applications, brushless AC motors are driven by variable frequency drives (VFDs). VFDs convert the incoming AC power into DC power and then generate AC power with variable frequency and voltage. By adjusting the frequency and voltage output of the VFD, the speed of the motor can be controlled. VFDs often incorporate advanced control algorithms and feedback mechanisms to achieve precise speed control.
6. Load and Torque Considerations: It’s important to consider the load and torque requirements when controlling the speed of a brushless AC motor. The control system should be designed to handle changes in load and adjust the power input accordingly to maintain the desired speed. Additionally, some control systems may incorporate torque control mechanisms to regulate the motor’s torque output along with speed control.
By utilizing electronic commutation, pulse width modulation, speed feedback, control algorithms, and variable frequency drives, brushless AC motors can achieve accurate and dynamic speed control. This speed control mechanism allows the motor to adapt to different operating conditions and meet the specific speed requirements of various applications.
How do brushless AC motors contribute to the efficiency of HVAC systems?
Brushless AC motors play a significant role in improving the efficiency of HVAC (heating, ventilation, and air conditioning) systems. These motors offer several advantages over traditional motor technologies, such as brushed motors or older induction motors. Here’s a detailed explanation of how brushless AC motors contribute to the efficiency of HVAC systems:
- Higher Energy Efficiency: Brushless AC motors are known for their higher energy efficiency compared to brushed motors or older motor technologies. They achieve this efficiency through various mechanisms:
- Reduced Energy Losses: Brushless AC motors eliminate the need for brushes and commutators, which are sources of friction, wear, and electrical losses in brushed motors. By eliminating these components, brushless AC motors reduce energy losses and improve overall efficiency.
- Better Motor Control: Brushless AC motors utilize advanced control techniques, such as sensor feedback and precise voltage and frequency control, to optimize motor performance. This control allows for smoother operation, improved speed regulation, and reduced energy consumption.
- Variable Speed Operation: Brushless AC motors can operate at variable speeds, allowing them to adjust their power output to match the required load. By running the motor at the most efficient speed for a given operating condition, energy consumption is minimized, resulting in higher overall system efficiency.
- Improved System Performance: The efficiency of an HVAC system is not solely dependent on the motor itself but also on how the motor interacts with the rest of the system. Brushless AC motors contribute to improved system performance in the following ways:
- Enhanced Control and Integration: Brushless AC motors can be easily integrated into advanced control systems, allowing for precise regulation of motor speed, airflow, and temperature. This integration enables more efficient operation of the entire HVAC system, optimizing energy usage and improving comfort.
- Variable Air Volume (VAV) Systems: Brushless AC motors are well-suited for VAV systems commonly used in HVAC applications. VAV systems adjust the airflow based on the cooling or heating demands of different zones. Brushless AC motors can modulate their speed and power output to match the varying airflow requirements, resulting in energy savings and improved comfort.
- Improved Fan Efficiency: HVAC systems often rely on fans to circulate air. Brushless AC motors, with their higher energy efficiency and precise speed control, can drive fans more efficiently, reducing the energy consumed by the fan and improving overall system efficiency.
- Longer Lifespan and Durability: Brushless AC motors are generally more reliable and durable compared to brushed motors. They have fewer moving parts, eliminating the wear and tear associated with brushes and commutators. This increased durability reduces maintenance needs and extends the lifespan of the motor, contributing to long-term efficiency gains in HVAC systems.
- Reduced Noise and Vibration: Brushless AC motors operate with reduced noise and vibration levels compared to some other motor types. This characteristic enhances the overall comfort of HVAC systems and reduces the need for additional soundproofing measures, contributing to a more efficient and pleasant environment.
The use of brushless AC motors in HVAC systems offers substantial benefits in terms of energy efficiency, system performance, durability, and comfort. Integrating these motors into HVAC designs can lead to significant energy savings, reduced operating costs, and improved environmental sustainability.
editor by CX 2024-05-16
China Best Sales Customizable Electric Brushed Brushless DC Motor 12V 18V 24V 36V 48V 310V PMDC/BLDC Planetary/Worm Gear Motor 12 24 36 48 Volt 15W 50W 100W 200W 300W 500W 800W vacuum pump oil
Product Description
Brushed or Brushless DC Motors, Customized Specifications, OEM/ODM
Option for :
Customized shaft, performance, voltage, mounting, lead wires..
Option for :
Electric Brake, Planetary Gearbox, Worm Gearbox, Encoder, Controller Integrated
1. BRUSHED DC MOTOR :
Voltage 12v, 24v, 36v, 48v, upto 310vdc
power 5w to 1000w
speed 1pm upto 10000rpm
Dia. 30mm, 32mm, 36mm, 38mm, 42mm, 52mm, 54mm, 63mm, 70mm, 76mm, 80mm, 90mm, 110mm
Belows are some typical models,
2. BRUSHLESS DC MOTOR :
Voltage 12v, 24v, 36v, 48v, upto 380vdc
power 5w to 2000w
speed 1pm upto 15000rpm
Size 28mm, 30mm, 36mm, 42mm, 57mm, 60mm, 63mm, 70mm, 80mm, 86mm, 110mm
| Bearing | High quality ball bearing |
| Poles | 4- poles 8-poles 12-poles |
| Protection class | IP40 IP55 option |
| Insulation class | class: F |
Belows are some typical models,
Below are only some typical models for reference.
63ZYT Series Permanent magnet Brushed Dc Motors
57HBL Series Brushless Dc Motors
56JXE300K. 63ZYT Series Dc Planetary Gear Motor
56JXE300K. 57HBL Series Brushless Dc Planetary Gear Motor
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Application: | Universal, Industrial, Household Appliances, Car, Power Tools, Machine, Robot |
|---|---|
| Operating Speed: | Constant Speed |
| Excitation Mode: | Pm |
| Function: | Control, Driving |
| Casing Protection: | Closed Type |
| Number of Poles: | 2 |
| Customization: |
Available
|
|
|---|
How do brushless motors compare to brushed motors in terms of lifespan and reliability?
When comparing brushless motors to brushed motors, there are notable differences in terms of lifespan and reliability. Here’s a detailed explanation of how brushless motors compare to brushed motors in these aspects:
1. Lifespan:
Brushed motors typically have a shorter lifespan compared to brushless motors. This is primarily due to the mechanical wear and tear associated with brushed motors. In brushed motors, the brushes and commutator make physical contact, causing friction, heat generation, and eventual wear. Over time, the brushes wear down and the commutator may become worn or damaged, leading to degraded motor performance and eventual failure. On the other hand, brushless motors do not have brushes or commutators, eliminating the mechanical wear components. As a result, brushless motors generally have a longer lifespan and can operate for thousands of hours with minimal maintenance.
2. Reliability:
Brushless motors are generally considered more reliable than brushed motors. The absence of brushes and commutators in brushless motors reduces the risk of failure due to mechanical wear and associated issues like brush sparking and arcing. The elimination of these moving parts also leads to reduced friction, less heat generation, and lower chances of electrical or mechanical failures. Additionally, brushless motors often benefit from advanced control systems that can monitor and protect against various operating conditions, enhancing their overall reliability.
3. Operating Conditions:
Brushless motors are better suited for demanding operating conditions compared to brushed motors. The absence of brushes and commutators in brushless motors means there are no physical contacts that can generate sparks or cause electrical arcing. This makes brushless motors more suitable for applications where sparks or electrical noise can be problematic, such as in explosive or sensitive electronic environments. Furthermore, brushless motors can operate at higher speeds and handle higher torque loads than brushed motors, making them more versatile in a wide range of applications.
4. Maintenance:
Brushless motors generally require less maintenance compared to brushed motors. Brushed motors often require periodic maintenance to replace worn-out brushes and address commutator issues. Additionally, the presence of brushes can lead to carbon dust buildup, requiring regular cleaning and maintenance. In contrast, brushless motors have no brushes or commutators to replace or clean, significantly reducing the maintenance requirements. However, it’s important to note that brushless motors may still require periodic inspections, especially for cooling systems or bearings, to ensure optimal performance and reliability.
5. Efficiency:
Brushless motors are typically more efficient than brushed motors. The absence of brushes and commutators in brushless motors reduces energy losses associated with friction and electrical resistance. This improved efficiency results in several benefits, such as reduced power consumption, longer battery life (in battery-powered applications), and less heat generation. Brushless motors are known for their high power-to-weight ratio and can deliver higher torque output per unit of input power compared to brushed motors.
In summary, brushless motors generally offer a longer lifespan and higher reliability compared to brushed motors. The absence of brushes and commutators reduces mechanical wear and associated failures, making brushless motors more durable. They are better suited for demanding operating conditions, require less maintenance, and offer improved efficiency. These factors have made brushless motors increasingly popular in various applications, including robotics, electric vehicles, industrial automation, and aerospace, where reliability and longevity are essential.
What is the significance of commutation in brushless motor operation, and how is it achieved?
Commutation is a critical aspect of brushless motor operation as it determines the timing and sequence of current flow in the motor windings. It is the process by which the motor’s magnetic field is switched to generate continuous rotation. The significance of commutation lies in its ability to maintain proper alignment between the magnetic field produced by the stator and the rotor’s permanent magnets, resulting in smooth and efficient motor operation. Here’s a detailed explanation of the significance of commutation in brushless motor operation and how it is achieved:
1. Magnetic Field Alignment: Commutation ensures that the magnetic field produced by the motor’s stator windings is properly aligned with the permanent magnets on the rotor. This alignment is crucial for generating the necessary torque to drive the rotor and produce rotation. By switching the current flow in the motor windings at the right time and in the right sequence, commutation ensures that the stator’s magnetic field interacts effectively with the rotor’s magnets, producing continuous and smooth rotation.
2. Efficient Power Conversion: Commutation plays a vital role in efficient power conversion within the brushless motor. As the current flows through the motor windings, commutation switches the current path to maintain the desired direction of rotation. By timely switching the current flow, commutation minimizes power losses and maximizes the energy transfer between the power supply and the motor. This efficient power conversion results in improved motor performance, higher energy efficiency, and reduced heat generation.
3. Elimination of Brushes and Commutators: Unlike brushed motors that rely on mechanical brushes and commutators for current switching, brushless motors achieve commutation electronically. This eliminates the need for brushes and commutators, which are prone to wear, friction, and electrical arcing. By replacing these mechanical components with solid-state electronic commutation, brushless motors offer several advantages, including reduced maintenance requirements, longer lifespan, and improved reliability.
4. Precise Speed Control: Commutation in brushless motors enables precise speed control. By accurately timing and sequencing the current flow in the motor windings, the control system of a brushless motor can regulate the motor’s rotational speed. This precise speed control is crucial in applications that require specific speed requirements, such as robotics, electric vehicles, and industrial automation.
5. Commutation Methods: Brushless motors achieve commutation through various methods, the most common being sensor-based commutation and sensorless commutation. Sensor-based commutation utilizes position sensors, such as Hall effect sensors or encoders, to detect the rotor’s position and determine the appropriate timing and sequence of current switching. Sensorless commutation, on the other hand, estimates the rotor position based on the back electromotive force (EMF) generated in the motor windings. Advanced control algorithms and signal processing techniques are employed to accurately estimate the rotor position and achieve precise commutation without the need for additional sensors.
In summary, commutation is of significant importance in brushless motor operation. It ensures proper alignment of the magnetic fields, enables efficient power conversion, eliminates mechanical wear components, allows for precise speed control, and contributes to the overall performance and reliability of brushless motors. Through sensor-based or sensorless commutation methods, brushless motors achieve accurate and timely switching of current flow, resulting in smooth rotation and optimal motor performance.
Can you explain the working principle of brushless motors and how they generate motion?
Brushless motors operate based on the principles of electromagnetism and electronic commutation. Here’s an explanation of the working principle of brushless motors and how they generate motion:
1. Stator and Rotor:
A brushless motor consists of two main components: a stationary stator and a rotating rotor. The stator contains multiple coils or windings arranged in a specific pattern. These windings are typically made of copper wire and are evenly spaced around the inner circumference of the motor housing. The rotor, on the other hand, contains permanent magnets that are magnetized in a specific pattern.
2. Electronic Commutation:
The key difference between brushless motors and brushed motors is the method of commutation. In brushed motors, commutation is achieved mechanically through brushes and a commutator. However, in brushless motors, commutation is electronic. The commutation process is managed by an external controller or electronic speed controller (ESC).
3. Rotor Position Detection:
To determine the rotor’s position, brushless motors use sensors or Hall effect devices embedded in the stator. These sensors detect the position of the permanent magnets on the rotor as it rotates. The sensor information is sent to the controller, which uses it to determine the timing and sequence of current flow in the stator windings.
4. Current Distribution:
Based on the rotor position information, the controller determines which stator windings need to be energized to generate the desired motion. The controller then sends electric currents to the appropriate windings in a specific sequence. By energizing different windings at different times, the controller can create a rotating magnetic field in the stator.
5. Magnetic Field Interaction:
As the rotating magnetic field is generated in the stator, it interacts with the permanent magnets on the rotor. The interaction between the rotating magnetic field and the permanent magnets causes the rotor to rotate. The controller continuously adjusts the timing and amplitude of the currents flowing through the stator windings to maintain the rotation and control the motor’s speed and torque.
6. Continuous Rotation:
Brushless motors achieve continuous rotation by continuously updating the rotor position using the sensors and adjusting the current flow in the stator windings accordingly. The electronic commutation process ensures that the currents are switched at the right time and in the right sequence to maintain the rotation and provide precise control over the motor’s operation.
By using electronic commutation and precise control over the currents in the stator windings, brushless motors generate motion with high efficiency, reliability, and accuracy. They offer advantages such as higher speed capabilities, smoother operation, reduced maintenance requirements, and improved overall performance compared to brushed motors. These characteristics make brushless motors widely used in various applications, ranging from small consumer electronics to large industrial machinery.
editor by CX 2024-05-09
China supplier Customizable Electric Brushed Brushless DC Motor 12V 18V 24V 36V 48V 310V PMDC/BLDC Planetary/Worm Gear Motor 12 24 36 48 Volt 15W 50W 100W 200W 300W 500W 800W vacuum pump and compressor
Product Description
Brushed or Brushless DC Motors, Customized Specifications, OEM/ODM
Option for :
Customized shaft, performance, voltage, mounting, lead wires..
Option for :
Electric Brake, Planetary Gearbox, Worm Gearbox, Encoder, Controller Integrated
1. BRUSHED DC MOTOR :
Voltage 12v, 24v, 36v, 48v, upto 310vdc
power 5w to 1000w
speed 1pm upto 10000rpm
Dia. 30mm, 32mm, 36mm, 38mm, 42mm, 52mm, 54mm, 63mm, 70mm, 76mm, 80mm, 90mm, 110mm
Belows are some typical models,
2. BRUSHLESS DC MOTOR :
Voltage 12v, 24v, 36v, 48v, upto 380vdc
power 5w to 2000w
speed 1pm upto 15000rpm
Size 28mm, 30mm, 36mm, 42mm, 57mm, 60mm, 63mm, 70mm, 80mm, 86mm, 110mm
| Bearing | High quality ball bearing |
| Poles | 4- poles 8-poles 12-poles |
| Protection class | IP40 IP55 option |
| Insulation class | class: F |
Belows are some typical models,
Below are only some typical models for reference.
63ZYT Series Permanent magnet Brushed Dc Motors
57HBL Series Brushless Dc Motors
56JXE300K. 63ZYT Series Dc Planetary Gear Motor
56JXE300K. 57HBL Series Brushless Dc Planetary Gear Motor
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Application: | Universal, Industrial, Household Appliances, Car, Power Tools, Machine, Robot |
|---|---|
| Operating Speed: | Constant Speed |
| Excitation Mode: | Pm |
| Function: | Control, Driving |
| Casing Protection: | Closed Type |
| Number of Poles: | 2 |
| Customization: |
Available
|
|
|---|
Where can individuals find reliable information and resources for learning more about brushless motors?
Individuals seeking reliable information and resources to learn more about brushless motors have several options available. Here are some recommended sources:
1. Manufacturer Websites:
Visit the websites of reputable brushless motor manufacturers. Manufacturers often provide detailed information about their products, including specifications, application guidelines, technical documentation, and educational resources. These websites can be a valuable source of accurate and up-to-date information about brushless motors.
2. Industry Associations and Organizations:
Explore industry associations and organizations related to electric motors, automation, or specific applications of brushless motors. These associations often provide educational materials, technical publications, webinars, and conferences that cover various aspects of motor technology. Examples include the Institute of Electrical and Electronics Engineers (IEEE), the American Society of Mechanical Engineers (ASME), or industry-specific associations like the Robotics Industries Association (RIA) or the Electric Motor Education and Research Foundation (EMERF).
3. Technical Forums and Online Communities:
Participate in technical forums and online communities focused on motors and related technologies. Platforms like Stack Exchange, Reddit, or specialized engineering forums often have dedicated sections where individuals can ask questions, learn from experts, and access valuable resources. Engaging with these communities can provide insights into real-world experiences and practical knowledge about brushless motors.
4. Books and Publications:
Consult books, textbooks, and technical publications that cover electric motors and motor control theory. Look for titles that specifically address brushless motor technology or broader topics such as electromechanical systems, power electronics, or mechatronics. Libraries, online bookstores, and academic institutions are good sources for finding relevant publications.
5. Online Tutorials and Courses:
Explore online tutorials and courses offered by educational platforms, engineering schools, or specialized training providers. Platforms such as Coursera, Udemy, or Khan Academy may offer courses related to electric motors, motor control, or mechatronics. These resources often provide structured learning experiences with video lectures, practical exercises, and assessments.
6. Research Papers and Technical Journals:
Access research papers and technical journals focused on electrical engineering, motor technology, or related fields. Platforms like IEEE Xplore, ResearchGate, or academic databases provide access to a wide range of scholarly articles and technical papers. These sources can offer in-depth knowledge about the latest advancements, research findings, and technical details related to brushless motors.
7. Industry Trade Shows and Exhibitions:
Attend industry trade shows and exhibitions that feature motor manufacturers, suppliers, and technology providers. These events often showcase the latest products, innovations, and advancements in motor technology. They also provide opportunities to interact with industry experts, attend technical presentations, and gather valuable information about brushless motors.
8. Online Product Catalogs and Datasheets:
Review online product catalogs and datasheets provided by motor manufacturers. These documents typically contain detailed specifications, performance data, and application notes for specific motor models. They can help individuals understand the capabilities, limitations, and features of different brushless motors.
Remember to critically evaluate the information obtained from various sources and cross-reference multiple resources to ensure accuracy and reliability. Brushless motor technology is a dynamic field, so staying updated with the latest research and industry developments is essential for gaining comprehensive knowledge.
Are there different configurations of brushless motors, and how do they differ?
Yes, there are different configurations of brushless motors, each designed to meet specific application requirements and operating conditions. These configurations differ in terms of the arrangement of the motor components, such as the rotor, stator, and magnet configuration. Here’s a detailed explanation of the various configurations of brushless motors and how they differ:
- Outrunner Configuration: In an outrunner configuration, the rotor is located on the outside of the stator. The rotor consists of a ring-shaped permanent magnet assembly with multiple magnetic poles, while the stator contains the motor windings. The outrunner configuration offers several advantages, including high torque output, robust construction, and efficient heat dissipation. Outrunner motors are commonly used in applications that require high torque and moderate speed, such as electric vehicles, robotics, and aircraft propulsion systems.
- Inrunner Configuration: In an inrunner configuration, the rotor is located on the inside of the stator. The rotor typically consists of a solid cylindrical core with embedded permanent magnets, while the stator contains the motor windings. Inrunner motors are known for their compact size, high speed capabilities, and precise speed control. They are commonly used in applications that require high-speed rotation and compact form factors, such as drones, small appliances, and industrial automation equipment.
- Internal Rotor Configuration: The internal rotor configuration, also known as an internal rotor motor (IRM), features a rotor located inside the stator. The rotor consists of a laminated core with embedded magnets, while the stator contains the motor windings. Internal rotor motors offer high power density, efficient heat dissipation, and excellent dynamic response. They are commonly used in applications that require high-performance and compact size, such as electric vehicles, industrial machinery, and robotics.
- External Rotor Configuration: The external rotor configuration, also known as an external rotor motor (ERM), features a rotor located on the outside of the stator. The rotor consists of a magnet assembly with multiple magnetic poles, while the stator contains the motor windings. External rotor motors offer high torque density, compact size, and high starting torque capabilities. They are commonly used in applications that require high torque and compact design, such as cooling fans, HVAC systems, and small electric appliances.
- Radial Flux Configuration: In a radial flux configuration, the magnetic flux flows radially from the center to the periphery of the motor. This configuration typically consists of a disc-shaped rotor with magnets on the periphery and a stator with motor windings arranged in a radial pattern. Radial flux motors offer high torque density, efficient heat dissipation, and good power output. They are commonly used in applications that require high torque and compact size, such as electric bicycles, electric scooters, and power tools.
- Axial Flux Configuration: In an axial flux configuration, the magnetic flux flows axially along the length of the motor. This configuration typically consists of a pancake-shaped rotor with magnets on both faces and a stator with motor windings arranged in an axial pattern. Axial flux motors offer high power density, efficient cooling, and compact design. They are commonly used in applications that require high power output and limited axial space, such as electric vehicles, wind turbines, and aerospace systems.
In summary, different configurations of brushless motors include outrunner, inrunner, internal rotor, external rotor, radial flux, and axial flux configurations. These configurations differ in terms of the arrangement of motor components, such as the rotor and stator, and offer unique characteristics suited for specific applications. Understanding the differences between these configurations is essential for selecting the most suitable brushless motor for a given application.
What are the key components of a brushless motor, and how do they function together?
A brushless motor consists of several key components that work together to generate motion. Here are the key components of a brushless motor and their functions:
1. Stator:
The stator is the stationary part of the brushless motor. It consists of a core, typically made of laminated iron, and multiple coils or windings. The windings are evenly spaced around the inner circumference of the motor housing. The stator’s function is to generate a rotating magnetic field when electric current passes through the windings.
2. Rotor:
The rotor is the rotating part of the brushless motor. It typically consists of permanent magnets, which are magnetized in a specific pattern. The rotor’s function is to interact with the stator’s magnetic field and convert the electromagnetic energy into mechanical rotation.
3. Hall Effect Sensors:
Hall effect sensors are used to detect the position of the rotor magnets. These sensors are typically mounted on the stator, facing the rotor. They provide feedback to the motor controller about the rotor’s position, allowing the controller to determine the timing and sequence of current flow in the stator windings.
4. Motor Controller:
The motor controller is an electronic device that controls the operation of the brushless motor. It receives signals from the Hall effect sensors and processes them to determine the appropriate timing and sequence of current flow in the stator windings. The motor controller sends electrical pulses to the stator windings to generate the rotating magnetic field and control the motor’s speed and torque.
5. Power Supply:
The power supply provides the electrical energy needed to drive the brushless motor. It can be a battery, DC power source, or an AC power source with an inverter. The power supply feeds the motor controller, which converts the input power into the appropriate signals to drive the stator windings.
6. Commutation Electronics:
Commutation electronics are responsible for switching the currents in the stator windings at the right time and in the right sequence. The commutation electronics, typically integrated into the motor controller, ensure that the appropriate stator windings are energized as the rotor rotates, creating a rotating magnetic field that interacts with the rotor magnets.
7. Bearings:
Bearings are used to support the rotor and allow it to rotate smoothly. They reduce friction and enable efficient transfer of mechanical power. Bearings in brushless motors are typically ball bearings or sleeve bearings, depending on the motor design and application requirements.
These key components of a brushless motor work together to generate motion. The motor controller receives feedback from the Hall effect sensors to determine the rotor position. Based on this information, the controller sends electrical pulses to the stator windings, creating a rotating magnetic field. The interaction between the rotating magnetic field and the permanent magnets on the rotor causes the rotor to rotate. The motor controller continuously adjusts the timing and amplitude of the currents flowing through the stator windings to maintain the rotation and control the motor’s speed and torque.
By integrating these components and utilizing electronic commutation, brushless motors offer advantages such as high efficiency, precise control, low maintenance, and improved performance compared to brushed motors. They find applications in various industries where efficient and reliable motion control is required.
editor by CX 2024-05-09
China Professional 63mm PMDC Brush Motor with 12V 100W (MB063KG250-4) vacuum pump adapter
Product Description
General information
- Ceramic magnets
- 7-slot Armature
- Copper-graphite brushes
- Insulation class: B
- Encoder, brake and planetary gearbox available
Specifications
| Specification | MB063KG250 |
| Rated Voltage | 12 (VDC) |
| No Load Speed | 3500 (RPM) |
| No Load Current | 0.8 (A) |
| Nominal Speed | 3000 (RPM) |
| Nominal Torque | 24 (Ncm) |
| Nominal Current | 8.7 (A) |
| Nominal Power | 100 (W) |
| Peak Torque | 202 (Ncm) |
| Peak Current | 64 (A) |
| Rotor Inertia | 750 (g.cm²) |
| Insulation Class | B |
| Weight | 1.7 (Kg) |
| L | 125 (mm) |
Mechanical
Characteristic diagram
Special shaft and other mechanical characteristic are optional.
Company Profile
- Originally motor division of CHINAMFG HangZhou- China National Machinery & Equipment Imp & Exp HangZhou Co.,Ltd., 1 of TOP 20 stated owned Machinery Group
- Privately owned Ltd company since 2000: HangZhou CHINAMFG Automation Technology Co. Ltd.
- Exmek Electric —Registered Brand Name
- Business: Design and manufacture of motion control products and components
- Highly qualified personnel
- UL, CE, RoHS certification
- ISO 9001, ISO 14000
Company Capabilities
- Modern Motor Design and Manufacture
- Part Set Design and Manufacture
- Magnetic Design Software-Motorsolver
- Molding
- Shipping world wide
Why CHINAMFG Electric
- Open for general discussion and questions
- Time to market or theatre of operations can be substantially reduced
- Talented team of engineers providing innovative technical solutions
- One stop “supplier” and complete sub-system
- Quality products provided at competitive low cost
- Ability to ship world wide
- On time delivery
- Training at Customer locations
- Fast service on return and repair results
- Many repeated customers
Applications:
Use for swimming pool, automotive, semiconductor, chemical & medical, industrial automation, power tool, instrument, measuring equipment, office automation, various OEM application.
We are open for general discussion and questions. Contact us now!
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Application: | Universal, Industrial, Household Appliances, Car |
|---|---|
| Operating Speed: | Adjust Speed |
| Excitation Mode: | Excited |
| Function: | Driving |
| Casing Protection: | Closed Type |
| Number of Poles: | 2 |
| Samples: |
US$ 65/Piece
1 Piece(Min.Order) | |
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| Customization: |
Available
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Where can individuals find reliable information and resources for learning more about brushless motors?
Individuals seeking reliable information and resources to learn more about brushless motors have several options available. Here are some recommended sources:
1. Manufacturer Websites:
Visit the websites of reputable brushless motor manufacturers. Manufacturers often provide detailed information about their products, including specifications, application guidelines, technical documentation, and educational resources. These websites can be a valuable source of accurate and up-to-date information about brushless motors.
2. Industry Associations and Organizations:
Explore industry associations and organizations related to electric motors, automation, or specific applications of brushless motors. These associations often provide educational materials, technical publications, webinars, and conferences that cover various aspects of motor technology. Examples include the Institute of Electrical and Electronics Engineers (IEEE), the American Society of Mechanical Engineers (ASME), or industry-specific associations like the Robotics Industries Association (RIA) or the Electric Motor Education and Research Foundation (EMERF).
3. Technical Forums and Online Communities:
Participate in technical forums and online communities focused on motors and related technologies. Platforms like Stack Exchange, Reddit, or specialized engineering forums often have dedicated sections where individuals can ask questions, learn from experts, and access valuable resources. Engaging with these communities can provide insights into real-world experiences and practical knowledge about brushless motors.
4. Books and Publications:
Consult books, textbooks, and technical publications that cover electric motors and motor control theory. Look for titles that specifically address brushless motor technology or broader topics such as electromechanical systems, power electronics, or mechatronics. Libraries, online bookstores, and academic institutions are good sources for finding relevant publications.
5. Online Tutorials and Courses:
Explore online tutorials and courses offered by educational platforms, engineering schools, or specialized training providers. Platforms such as Coursera, Udemy, or Khan Academy may offer courses related to electric motors, motor control, or mechatronics. These resources often provide structured learning experiences with video lectures, practical exercises, and assessments.
6. Research Papers and Technical Journals:
Access research papers and technical journals focused on electrical engineering, motor technology, or related fields. Platforms like IEEE Xplore, ResearchGate, or academic databases provide access to a wide range of scholarly articles and technical papers. These sources can offer in-depth knowledge about the latest advancements, research findings, and technical details related to brushless motors.
7. Industry Trade Shows and Exhibitions:
Attend industry trade shows and exhibitions that feature motor manufacturers, suppliers, and technology providers. These events often showcase the latest products, innovations, and advancements in motor technology. They also provide opportunities to interact with industry experts, attend technical presentations, and gather valuable information about brushless motors.
8. Online Product Catalogs and Datasheets:
Review online product catalogs and datasheets provided by motor manufacturers. These documents typically contain detailed specifications, performance data, and application notes for specific motor models. They can help individuals understand the capabilities, limitations, and features of different brushless motors.
Remember to critically evaluate the information obtained from various sources and cross-reference multiple resources to ensure accuracy and reliability. Brushless motor technology is a dynamic field, so staying updated with the latest research and industry developments is essential for gaining comprehensive knowledge.
Are there different configurations of brushless motors, and how do they differ?
Yes, there are different configurations of brushless motors, each designed to meet specific application requirements and operating conditions. These configurations differ in terms of the arrangement of the motor components, such as the rotor, stator, and magnet configuration. Here’s a detailed explanation of the various configurations of brushless motors and how they differ:
- Outrunner Configuration: In an outrunner configuration, the rotor is located on the outside of the stator. The rotor consists of a ring-shaped permanent magnet assembly with multiple magnetic poles, while the stator contains the motor windings. The outrunner configuration offers several advantages, including high torque output, robust construction, and efficient heat dissipation. Outrunner motors are commonly used in applications that require high torque and moderate speed, such as electric vehicles, robotics, and aircraft propulsion systems.
- Inrunner Configuration: In an inrunner configuration, the rotor is located on the inside of the stator. The rotor typically consists of a solid cylindrical core with embedded permanent magnets, while the stator contains the motor windings. Inrunner motors are known for their compact size, high speed capabilities, and precise speed control. They are commonly used in applications that require high-speed rotation and compact form factors, such as drones, small appliances, and industrial automation equipment.
- Internal Rotor Configuration: The internal rotor configuration, also known as an internal rotor motor (IRM), features a rotor located inside the stator. The rotor consists of a laminated core with embedded magnets, while the stator contains the motor windings. Internal rotor motors offer high power density, efficient heat dissipation, and excellent dynamic response. They are commonly used in applications that require high-performance and compact size, such as electric vehicles, industrial machinery, and robotics.
- External Rotor Configuration: The external rotor configuration, also known as an external rotor motor (ERM), features a rotor located on the outside of the stator. The rotor consists of a magnet assembly with multiple magnetic poles, while the stator contains the motor windings. External rotor motors offer high torque density, compact size, and high starting torque capabilities. They are commonly used in applications that require high torque and compact design, such as cooling fans, HVAC systems, and small electric appliances.
- Radial Flux Configuration: In a radial flux configuration, the magnetic flux flows radially from the center to the periphery of the motor. This configuration typically consists of a disc-shaped rotor with magnets on the periphery and a stator with motor windings arranged in a radial pattern. Radial flux motors offer high torque density, efficient heat dissipation, and good power output. They are commonly used in applications that require high torque and compact size, such as electric bicycles, electric scooters, and power tools.
- Axial Flux Configuration: In an axial flux configuration, the magnetic flux flows axially along the length of the motor. This configuration typically consists of a pancake-shaped rotor with magnets on both faces and a stator with motor windings arranged in an axial pattern. Axial flux motors offer high power density, efficient cooling, and compact design. They are commonly used in applications that require high power output and limited axial space, such as electric vehicles, wind turbines, and aerospace systems.
In summary, different configurations of brushless motors include outrunner, inrunner, internal rotor, external rotor, radial flux, and axial flux configurations. These configurations differ in terms of the arrangement of motor components, such as the rotor and stator, and offer unique characteristics suited for specific applications. Understanding the differences between these configurations is essential for selecting the most suitable brushless motor for a given application.
What are the key components of a brushless motor, and how do they function together?
A brushless motor consists of several key components that work together to generate motion. Here are the key components of a brushless motor and their functions:
1. Stator:
The stator is the stationary part of the brushless motor. It consists of a core, typically made of laminated iron, and multiple coils or windings. The windings are evenly spaced around the inner circumference of the motor housing. The stator’s function is to generate a rotating magnetic field when electric current passes through the windings.
2. Rotor:
The rotor is the rotating part of the brushless motor. It typically consists of permanent magnets, which are magnetized in a specific pattern. The rotor’s function is to interact with the stator’s magnetic field and convert the electromagnetic energy into mechanical rotation.
3. Hall Effect Sensors:
Hall effect sensors are used to detect the position of the rotor magnets. These sensors are typically mounted on the stator, facing the rotor. They provide feedback to the motor controller about the rotor’s position, allowing the controller to determine the timing and sequence of current flow in the stator windings.
4. Motor Controller:
The motor controller is an electronic device that controls the operation of the brushless motor. It receives signals from the Hall effect sensors and processes them to determine the appropriate timing and sequence of current flow in the stator windings. The motor controller sends electrical pulses to the stator windings to generate the rotating magnetic field and control the motor’s speed and torque.
5. Power Supply:
The power supply provides the electrical energy needed to drive the brushless motor. It can be a battery, DC power source, or an AC power source with an inverter. The power supply feeds the motor controller, which converts the input power into the appropriate signals to drive the stator windings.
6. Commutation Electronics:
Commutation electronics are responsible for switching the currents in the stator windings at the right time and in the right sequence. The commutation electronics, typically integrated into the motor controller, ensure that the appropriate stator windings are energized as the rotor rotates, creating a rotating magnetic field that interacts with the rotor magnets.
7. Bearings:
Bearings are used to support the rotor and allow it to rotate smoothly. They reduce friction and enable efficient transfer of mechanical power. Bearings in brushless motors are typically ball bearings or sleeve bearings, depending on the motor design and application requirements.
These key components of a brushless motor work together to generate motion. The motor controller receives feedback from the Hall effect sensors to determine the rotor position. Based on this information, the controller sends electrical pulses to the stator windings, creating a rotating magnetic field. The interaction between the rotating magnetic field and the permanent magnets on the rotor causes the rotor to rotate. The motor controller continuously adjusts the timing and amplitude of the currents flowing through the stator windings to maintain the rotation and control the motor’s speed and torque.
By integrating these components and utilizing electronic commutation, brushless motors offer advantages such as high efficiency, precise control, low maintenance, and improved performance compared to brushed motors. They find applications in various industries where efficient and reliable motion control is required.
editor by CX 2024-05-03
China Professional 80mm 12V 24V 36V 48V High Torque Big Power Brushless DC Motor Customized OEM 1500rpm 2000rpm 3000rpm 4000rpm BLDC Motor Power 100W 200W 300W 400W 500W 800W wholesaler
Product Description
Below are only some typical models.
For more information or a customed motor, Pls contact us.
Option for :
customized shaft, performance, voltage, mounting, lead wires..
Option for:
Electric Brake, Planetary Gearbox, Worm Gearbox, Optical Encoder Integrated
Size 80mm brushless dc motors
Rated Voltage : 24 Volt
Option for 12v 24v 36v 48v 60v
| Bearing | High quality ball bearing |
| Poles | 4- poles 8-poles |
| Protection class | IP40 IP55 option |
| Insulation class | class: F |
Electric Connections
CONTROLLER INTEGRATED VERSION
Diagram
Drawing
PLANETARY GEARED VERSION
WORM GEARED VERSION
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| Application: | Universal, Industrial, Household Appliances, Car, Power Tools |
|---|---|
| Operating Speed: | Adjust Speed |
| Function: | Driving |
| Casing Protection: | Closed Type |
| Number of Poles: | 8 |
| Structure and Working Principle: | Brushless |
| Customization: |
Available
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Can brushless motors be used in environments with high temperatures or extreme conditions?
Yes, brushless motors can be designed and used in environments with high temperatures or extreme conditions, provided that they are appropriately engineered and equipped with suitable materials and protective measures. Here’s a detailed explanation of the factors to consider and the measures taken to enable brushless motors to operate in such challenging environments:
1. Thermal Management: High temperatures can have detrimental effects on the performance and lifespan of brushless motors. To mitigate these effects, thermal management techniques are employed. This includes the use of efficient heat sinks, cooling fans, or liquid cooling systems to dissipate heat generated during motor operation. Additionally, the motor’s design may incorporate insulation materials that can withstand high temperatures and prevent heat transfer to sensitive components.
2. High-Temperature Materials: Brushless motors intended for use in high-temperature environments are constructed using materials that can withstand the elevated temperatures. This includes the use of high-temperature-resistant magnets, such as samarium cobalt (SmCo) or neodymium iron boron (NdFeB) magnets, which can maintain their magnetic properties at high temperatures. Similarly, the motor’s components, such as the stator, windings, and insulation materials, are selected or treated to withstand the specific temperature requirements.
3. Sealing and Enclosure: Extreme conditions often involve exposure to dust, moisture, or other contaminants that can adversely affect motor performance. To protect brushless motors in such environments, they are typically equipped with robust sealing and enclosure measures. This may include the use of gaskets, O-rings, or specialized seals to prevent the ingress of dust, water, or corrosive substances. In some cases, motors are housed in IP (Ingress Protection) rated enclosures, providing a higher level of protection against environmental factors.
4. Vibration and Shock Resistance: Some extreme environments may subject the motors to high levels of vibration or mechanical shocks. Brushless motors designed for such conditions are engineered to withstand these external forces. They may incorporate features such as reinforced mounting structures, vibration-damping materials, or shock-absorbing mechanisms to ensure reliable operation and prevent damage to internal components.
5. Environmental Testing and Certification: To ensure the suitability of brushless motors for high-temperature or extreme environments, they often undergo rigorous testing and certification processes. These tests may include temperature cycling, humidity testing, thermal shock testing, vibration testing, and ingress protection testing. Compliance with industry standards and certifications, such as UL (Underwriters Laboratories) or IEC (International Electrotechnical Commission) standards, provides assurance of the motor’s reliability and performance in specific environmental conditions.
It’s important to note that the specific temperature and environmental limits of a brushless motor can vary depending on the design, construction, and intended application. Therefore, when considering the use of brushless motors in high-temperature or extreme conditions, it is essential to consult with motor manufacturers or experts who can provide guidance based on the specific requirements and constraints of the intended application.
What types of sensors are commonly used in brushless motors for feedback and control?
In brushless motors, various types of sensors are commonly used for feedback and control purposes. These sensors provide essential data to monitor and control the motor’s position, speed, and other parameters. Here are some of the commonly used sensors in brushless motors:
1. Hall Effect Sensors:
Hall effect sensors are widely used in brushless motors for commutation control. Typically, three Hall effect sensors are positioned around the motor’s stator to detect the position of the rotor’s permanent magnets. By sensing the magnetic field changes, the Hall effect sensors determine the rotor’s position relative to the stator. This information is crucial for the motor’s electronic controller to apply the correct current to the motor’s windings and ensure proper commutation.
2. Encoder Sensors:
Encoders are commonly employed in brushless motors for precise position control. There are two main types of encoders used: optical encoders and magnetic encoders. Optical encoders use an optical disc with patterns and a light-emitting diode (LED) and photodetector to detect the rotation of the motor’s shaft. Magnetic encoders, on the other hand, utilize magnetic fields and sensors to measure the shaft’s position. Encoders provide high-resolution position feedback and enable accurate closed-loop control of the motor’s position.
3. Resolver Sensors:
Resolvers are another type of position sensor used in brushless motors. They consist of a rotor and a stator with windings. As the rotor rotates, the resolver measures the angular position by detecting the voltages induced in the stator windings. Resolvers are known for their durability and resistance to harsh environmental conditions, making them suitable for various industrial applications.
4. Current Sensors:
Current sensors are used to measure the current flowing through the motor’s windings. They provide feedback on the motor’s electrical load and enable monitoring of the motor’s torque output. Current sensors can be based on different principles, such as Hall effect, shunt resistors, or current transformers. By measuring the motor’s current, the control system can adjust the motor’s performance and protect it from overcurrent conditions.
5. Temperature Sensors:
Temperature sensors are utilized to monitor the motor’s temperature and prevent overheating. These sensors can be thermocouples, thermistors, or integrated temperature sensors. By continuously monitoring the motor’s temperature, the control system can adjust the motor’s operation, activate cooling mechanisms, or trigger alarms and shutdowns if the temperature exceeds safe limits.
6. Speed Sensors:
Speed sensors are employed to measure the rotational speed of the motor. They provide feedback on the motor’s speed and enable closed-loop speed control. Speed sensors can be optical or magnetic, relying on the detection of changes in position or magnetic field patterns to determine the motor’s speed.
The specific combination and utilization of these sensors depend on the motor’s design, control system requirements, and application needs. By using these sensors, brushless motors can achieve precise control, accurate position feedback, and efficient operation, making them suitable for a wide range of applications in industries such as automotive, robotics, aerospace, and industrial automation.
How do brushless motors contribute to energy efficiency compared to brushed motors?
Brushless motors offer several key advantages over brushed motors when it comes to energy efficiency. Here’s how brushless motors contribute to energy efficiency compared to brushed motors:
1. Elimination of Brush Friction:
In brushed motors, the brushes make physical contact with the commutator, resulting in friction and wear. This friction causes energy losses in the form of heat. Brushless motors, on the other hand, do not use brushes or commutators. The absence of brush friction significantly reduces energy losses, resulting in improved energy efficiency. The elimination of brush friction allows brushless motors to operate at higher efficiencies and reduces the amount of wasted energy dissipated as heat.
2. Reduced Electrical Resistance:
Brushed motors rely on the brushes and commutator to transfer electrical current to the rotor windings. However, these components introduce electrical resistance, leading to energy losses in the form of voltage drops and heat generation. In brushless motors, electrical current is transferred to the stator windings through electronic commutation, which eliminates the resistance caused by brushes and commutators. The reduced electrical resistance in brushless motors results in higher energy efficiency and minimizes power losses.
3. Improved Power Conversion:
Brushless motors employ electronic commutation, allowing for more precise control of the current flow in the stator windings. This precise control enables optimized power conversion, ensuring that the electrical energy supplied to the motor is efficiently converted into mechanical power. Brushed motors, on the other hand, rely on mechanical commutation, which is less efficient and leads to power losses in the form of sparks and arcing. The improved power conversion in brushless motors contributes to their higher energy efficiency.
4. Regenerative Braking:
Brushless motors have the capability of regenerative braking, which further enhances their energy efficiency. During braking or deceleration, the motor can act as a generator, converting the kinetic energy of the moving load back into electrical energy. This regenerated energy can be fed back into the power source or stored in batteries or capacitors for later use. Regenerative braking reduces energy wastage and improves overall system efficiency by recovering and reusing energy that would otherwise be dissipated as heat in traditional braking systems.
5. Optimal Sizing and Control:
Brushless motors can be designed and controlled to match the specific requirements of the application, resulting in optimal sizing and operation. By selecting the appropriate motor size, torque rating, and control parameters, the motor can operate at its most efficient operating point. This tailored approach ensures that the motor operates with minimal energy losses and maximizes its energy efficiency. In contrast, brushed motors may be oversized or underutilized for certain applications, leading to less efficient operation and higher energy consumption.
Overall, brushless motors offer higher energy efficiency compared to brushed motors due to the elimination of brush friction, reduced electrical resistance, improved power conversion, regenerative braking capabilities, and the ability to optimize motor sizing and control. These energy-saving features make brushless motors a preferred choice in various applications, particularly those that prioritize energy efficiency, such as electric vehicles, renewable energy systems, and battery-powered devices.
editor by CX 2024-04-24
China best High Speed NEMA24 0.318n. M 100W 3000rpm Brushless AC 36V Electric Servo Motor for Robotic Arm with Hot selling
Product Description
High speed nema24 0.318N.m 1; Cel: ;
FAQ:
1. Factory or trader?
We are factory, and have professional R&D team as introduced in company information.
2. How about the delivery?
– Sample: 3-5 days.
– Bulk order: 15-30 days.
3. What is your after-sales services?
1. Free maintenance within 12 months guarantee, lifetime consultant.
2. Professional solutions in installation and maintence.
4. Why choose us?
1. Factory Price & 24/7 after-sale services.
2. From mold customization to material processing and welding, from fine components to finished assembly, 72 processes, 24 control points, strict aging, finished product inspection.
5. Do you get the relevant certification?
All products are made according to ISO9001, CE requirements.
If any terms get your interest, please CLICK BELOW to send a message to us!
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Application: | Robotic Arm |
|---|---|
| Speed: | High Speed |
| Number of Stator: | Three-Phase |
| Function: | Driving |
| Casing Protection: | Closed Type |
| Number of Poles: | 10 |
| Samples: |
US$ 102/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
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What are the advantages of using a brushless AC motor over a brushed motor?
When comparing brushless AC motors to traditional brushed motors, several advantages arise from the brushless AC motor design. Here are the key advantages:
- Higher Efficiency: Brushless AC motors generally have higher efficiency compared to brushed motors. The absence of brushes and commutators reduces energy losses and minimizes friction, resulting in improved overall motor efficiency. This higher efficiency translates into reduced power consumption and lower operating costs.
- Longer Lifespan: Brushless AC motors typically have a longer lifespan compared to brushed motors. The elimination of brushes eliminates the wear and tear associated with brush contact and commutation, leading to less frequent maintenance and longer motor life.
- Reduced Maintenance: Brushed motors require regular maintenance to replace worn-out brushes and address commutator issues. In contrast, brushless AC motors have no brushes to replace or commutators to service, reducing the maintenance requirements and associated downtime.
- Improved Reliability: The absence of brushes in brushless AC motors eliminates common brush-related problems, such as sparking, brush dust accumulation, and brush wear. This results in improved motor reliability, reduced electrical noise, and enhanced overall system performance.
- Precise Control: Brushless AC motors offer precise control over speed, torque, and direction of rotation. Electronic commutation allows for accurate and efficient control of the motor’s performance, making brushless AC motors suitable for applications that require precise motion control and variable speed operation.
- Compact and Lightweight: Brushless AC motors are often more compact and lightweight compared to brushed motors with similar power ratings. The absence of brushes and commutators allows for a more streamlined motor design, making brushless AC motors suitable for applications where space and weight are limited.
- Reduced Electromagnetic Interference: Brushless AC motors generate less electromagnetic interference (EMI) compared to brushed motors. The electronic commutation in brushless AC motors results in smoother operation and reduced electrical noise, making them suitable for applications where EMI needs to be minimized.
- Higher Speeds: Brushless AC motors can typically achieve higher speeds compared to brushed motors. The absence of brushes eliminates the limitations imposed by brush friction and wear, allowing brushless AC motors to operate at higher speeds without compromising motor performance.
Overall, the advantages of using brushless AC motors over brushed motors include higher efficiency, longer lifespan, reduced maintenance, improved reliability, precise control, compact design, reduced EMI, and the ability to attain higher speeds. These advantages make brushless AC motors a preferred choice in many applications, including industrial automation, robotics, electric vehicles, and more.
Can brushless AC motors be used in both industrial and residential settings?
Yes, brushless AC motors can be used in both industrial and residential settings. The versatility and advantages of brushless AC motors make them suitable for a wide range of applications. Here’s a detailed explanation:
Industrial Applications:
Brushless AC motors are widely used in various industrial applications due to their high efficiency, reliability, and precise control. Some common industrial applications where brushless AC motors are utilized include:
- Industrial Machinery: Brushless AC motors are often used in industrial machinery such as conveyor systems, pumps, compressors, and fans. Their high torque, variable speed control, and efficient operation make them suitable for driving heavy loads and providing reliable performance in demanding industrial environments.
- Robotics: Brushless AC motors find extensive use in robotics applications. The precise control capabilities of brushless motors, coupled with their compact size and high power density, make them ideal for powering robotic arms, grippers, and other motion control systems.
- Automotive: Brushless AC motors are increasingly being employed in electric and hybrid vehicles. They offer high power-to-weight ratios, efficient operation, and regenerative braking capabilities, making them suitable for propulsion systems, power steering, and other automotive applications.
- Aerospace: Brushless AC motors are used in aerospace applications, including aircraft systems, control surfaces, and landing gear mechanisms. Their reliability, compactness, and high performance make them suitable for the demanding requirements of the aerospace industry.
- Industrial Automation: Brushless AC motors play a critical role in industrial automation systems. They are used in CNC machines, robotic arms, assembly lines, and other automated processes, providing accurate and reliable motion control.
Residential Applications:
Brushless AC motors are also finding increased use in residential settings, thanks to their energy efficiency, quiet operation, and long lifespan. Some common residential applications where brushless AC motors are utilized include:
- Appliances: Brushless AC motors are employed in various household appliances such as refrigerators, air conditioners, washing machines, and dishwashers. They offer energy-efficient operation, precise control, and reduced noise levels, enhancing the performance and user experience of these appliances.
- HVAC Systems: Brushless AC motors are used in heating, ventilation, and air conditioning (HVAC) systems. They provide efficient and reliable operation for fans, blowers, and pumps, contributing to energy savings and optimal indoor comfort.
- Smart Home Devices: Brushless AC motors are integrated into smart home devices, including motorized window blinds, smart locks, and automated lighting systems. They offer quiet operation, precise positioning, and energy efficiency, enhancing the convenience and functionality of these devices.
- Power Tools: Brushless AC motors are increasingly used in power tools such as drills, saws, and sanders. They deliver high power output, longer runtime, and longer tool life compared to brushed motors, making them desirable for DIY enthusiasts and professionals alike.
With their versatility, energy efficiency, and reliability, brushless AC motors have become a preferred choice in both industrial and residential settings. They offer numerous benefits, including improved performance, reduced maintenance requirements, and enhanced energy savings, making them suitable for a wide range of applications across various sectors.
Are there limitations to the size or capacity of brushless AC motors?
Yes, there are limitations to the size or capacity of brushless AC motors. While brushless AC motors offer several advantages over other motor types, such as higher efficiency, better speed control, and longer lifespan, they do have certain limitations that need to be considered. Here’s a detailed explanation of these limitations:
1. Physical Size: Brushless AC motors tend to be larger in size compared to brushed motors of similar power ratings. This is primarily due to the additional components required for the motor’s operation, such as the rotor position sensors and the motor controller. As a result, there may be practical limitations on the size of brushless AC motors that can be used in certain applications where space is limited or where compact motor designs are required.
2. Power Density: Brushless AC motors generally have lower power density compared to some other motor types, such as brushed DC motors or certain types of high-performance motors. Power density refers to the amount of power that can be delivered per unit volume or weight of the motor. This limitation can impact applications where high power-to-size or power-to-weight ratios are critical, such as in aerospace or automotive applications.
3. Cost: Brushless AC motors can be more expensive compared to other motor types, especially for smaller power ratings. The additional components and complex control systems required for brushless AC motor operation contribute to higher manufacturing costs. This cost limitation may make brushless AC motors less economically viable for certain applications, particularly those with low power requirements or strict budget constraints.
4. High-Speed Operation: Brushless AC motors may face challenges when operating at extremely high speeds. The centrifugal forces acting on the rotor components can increase significantly at high speeds, leading to increased mechanical stress and potential issues with rotor balancing. Specialized designs and materials may be required to mitigate these challenges and ensure safe and reliable high-speed operation.
5. Complex Control Systems: Brushless AC motors require sophisticated control systems, such as motor controllers or drives, to operate effectively. These control systems must accurately synchronize the switching of the inverter and the rotor position to achieve optimal motor performance. The design, implementation, and maintenance of these control systems can be complex and may require specialized knowledge and expertise.
Despite these limitations, brushless AC motors are widely used in various applications, ranging from industrial machinery and robotics to electric vehicles and renewable energy systems. Continuous advancements in motor technology and control systems are addressing many of these limitations, allowing brushless AC motors to be applied in a broader range of applications and power capacities.
It’s crucial to consider the specific requirements and constraints of the intended application when selecting a motor type. Consulting with motor experts or engineers can provide valuable insights into the suitability and limitations of brushless AC motors for a given application.
editor by CX 2024-04-23
China Hot selling High Speed NEMA24 0.318n. M 100W 3000rpm Brushless AC 36V Electric Servo Motor for Robotic Arm vacuum pump ac system
Product Description
High speed nema24 0.318N.m 1; Cel: ;
FAQ:
1. Factory or trader?
We are factory, and have professional R&D team as introduced in company information.
2. How about the delivery?
– Sample: 3-5 days.
– Bulk order: 15-30 days.
3. What is your after-sales services?
1. Free maintenance within 12 months guarantee, lifetime consultant.
2. Professional solutions in installation and maintence.
4. Why choose us?
1. Factory Price & 24/7 after-sale services.
2. From mold customization to material processing and welding, from fine components to finished assembly, 72 processes, 24 control points, strict aging, finished product inspection.
5. Do you get the relevant certification?
All products are made according to ISO9001, CE requirements.
If any terms get your interest, please CLICK BELOW to send a message to us!
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Application: | Robotic Arm |
|---|---|
| Speed: | High Speed |
| Number of Stator: | Three-Phase |
| Function: | Driving |
| Casing Protection: | Closed Type |
| Number of Poles: | 10 |
| Samples: |
US$ 102/Piece
1 Piece(Min.Order) | |
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| Customization: |
Available
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How does the lack of brushes in brushless AC motors contribute to their longevity?
The absence of brushes in brushless AC motors significantly contributes to their longevity and overall durability. Here’s how:
1. Reduced Wear and Tear: Brushes and commutators in traditional brushed motors are prone to wear and tear due to the constant friction and mechanical contact. As the brushes make contact with the commutator, they experience abrasion and gradually wear down over time. In brushless AC motors, the lack of brushes eliminates this source of wear, resulting in reduced mechanical stress on the motor components.
2. Elimination of Brush Dust Accumulation: Brushed motors generate carbon dust as the brushes wear down. This dust can accumulate on the commutator and other motor parts, potentially causing electrical shorts, sparking, and reduced motor performance. In brushless AC motors, the absence of brushes eliminates the generation of carbon dust, reducing the risk of dust accumulation and related issues.
3. Minimized Brush Sparks: Brushes in brushed motors can produce sparks during operation, leading to electrical arcing and potential damage to the commutator and brushes themselves. These sparks can also introduce electrical noise and interfere with sensitive electronic components. Brushless AC motors, with their brushless design, eliminate the occurrence of brush sparks, resulting in smoother and quieter operation.
4. Improved Commutation: In brushed motors, the commutator is responsible for transferring electrical power to the rotor windings through the brushes. This mechanical commutation introduces limitations in terms of speed, torque, and reliability. In contrast, brushless AC motors employ electronic commutation, which is more precise and efficient. Electronic commutation eliminates the need for physical contact, allowing for greater control over the motor’s performance and reducing the potential for commutation-related issues.
5. Enhanced Electrical Efficiency: Brushes and commutators in brushed motors can cause energy losses due to friction and electrical resistance. These losses result in reduced overall motor efficiency. By eliminating brushes and commutators, brushless AC motors minimize energy losses, leading to improved electrical efficiency and reduced heat generation.
Collectively, these factors contribute to the longevity of brushless AC motors. The absence of brushes reduces mechanical wear, eliminates brush-related issues such as dust accumulation and sparks, allows for more precise electronic commutation, and improves overall electrical efficiency. As a result, brushless AC motors can operate reliably for longer periods with minimal maintenance requirements, making them a durable and long-lasting solution for various applications.
What are the maintenance requirements for brushless AC motors?
Brushless AC motors are known for their relatively low maintenance requirements compared to traditional brushed motors. However, they still require some maintenance to ensure optimal performance and longevity. Here’s a detailed explanation of the maintenance requirements for brushless AC motors:
1. Cleanliness: Keeping the motor clean is essential for its proper functioning. Regularly inspect the motor for any dust, dirt, or debris accumulation. Use compressed air or a soft brush to gently remove any foreign particles that may have collected on the motor’s surface or cooling vents. Cleanliness helps prevent overheating and ensures efficient operation.
2. Ventilation: Brushless AC motors generate heat during operation, and proper ventilation is crucial for dissipating this heat. Ensure that the cooling vents or fans associated with the motor are not obstructed. Clear any obstructions that may impede the airflow around the motor. Adequate ventilation helps prevent overheating and extends the motor’s lifespan.
3. Bearing Lubrication: Brushless AC motors typically incorporate bearings to support the rotating shaft. Some motors may have sealed or maintenance-free bearings, while others may require periodic lubrication. Consult the motor manufacturer’s guidelines or specifications to determine the lubrication requirements. Proper lubrication minimizes friction and wear, ensuring smooth operation and prolonging bearing life.
4. Inspect and Tighten Connections: Periodically inspect the electrical connections of the motor, including the power cables, terminals, and control wiring. Loose or corroded connections can lead to voltage drops, excessive heat, and electrical failures. Ensure that all connections are secure and tight. If any signs of corrosion are present, clean the connections and apply an appropriate anti-corrosion treatment.
5. Check Insulation: Insulation plays a critical role in maintaining the integrity of the motor’s electrical components. Inspect the motor’s insulation regularly for any signs of damage, such as cracks, wear, or deterioration. Damaged insulation can lead to short circuits and motor failures. If any insulation issues are detected, consult a professional technician or the motor manufacturer for proper repair or replacement.
6. Monitor Vibration and Noise: Unusual vibration or excessive noise during motor operation can indicate underlying issues. Regularly monitor the motor for any abnormal vibrations or noise levels. Excessive vibration can lead to premature component failure, while unusual noise may indicate bearing wear or misalignment. If significant vibration or noise is observed, it is recommended to consult a professional technician to diagnose and address the problem.
7. Periodic Maintenance: Depending on the specific motor and its operating conditions, periodic maintenance tasks may be required, such as bearing replacement, rotor balancing, or inspection of internal components. Consult the motor manufacturer’s guidelines or recommendations for the recommended maintenance intervals and procedures specific to your motor.
It’s important to note that the specific maintenance requirements for brushless AC motors may vary depending on factors such as motor design, operating environment, and usage conditions. Consulting the motor manufacturer’s guidelines and recommendations is crucial to ensure proper maintenance practices and maximize the motor’s performance and lifespan.
How do you troubleshoot common issues with brushless AC motors?
When troubleshooting common issues with brushless AC motors, it’s important to systematically identify and address potential problems. Here’s a detailed explanation of the steps involved in troubleshooting common issues with brushless AC motors:
- Check Power Supply: Verify that the power supply to the motor is functioning correctly. Ensure that the voltage and frequency supplied to the motor match the specifications provided by the manufacturer. Check for any loose connections, blown fuses, or tripped circuit breakers that may be interrupting the power supply.
- Inspect Wiring and Connections: Examine the motor’s wiring and connections for any signs of damage, loose connections, or poor insulation. Ensure that the wiring is properly sized and connected according to the manufacturer’s guidelines. Tighten any loose connections and repair or replace any damaged wiring or insulation.
- Check Motor Temperature: Monitor the motor’s temperature during operation. Excessive heat can indicate issues such as overload, insufficient cooling, or problems with the motor’s ventilation system. Make sure that the motor is adequately cooled and that any cooling fans or ventilation openings are clean and unobstructed.
- Inspect Bearings: Check the motor’s bearings for any signs of wear, misalignment, or damage. Excessive noise, vibration, or increased heat can be indications of bearing issues. Lubricate or replace the bearings as necessary, following the manufacturer’s recommendations.
- Monitor Motor Performance: Observe the motor’s performance during operation. Look for any abnormal behavior such as erratic speed, excessive noise, or sudden changes in torque. Use appropriate measuring instruments to monitor parameters such as voltage, current, and speed to identify any deviations from expected values.
- Check Motor Control System: Evaluate the motor control system, including the motor controller or inverter, for any faults or malfunctions. Inspect the control circuitry, sensors, and feedback mechanisms. Ensure that the control signals and commands are reaching the motor correctly and that the control system is properly programmed and calibrated.
- Review Motor Protection Features: Check if the motor’s protection features, such as overcurrent, overvoltage, or thermal protection, are functioning correctly. Review the motor’s documentation or consult the manufacturer’s guidelines to understand the specific protection mechanisms employed and verify their proper operation.
- Refer to Manufacturer Documentation: Consult the motor’s documentation, technical manuals, or troubleshooting guides provided by the manufacturer. These resources often contain specific troubleshooting steps and recommendations tailored to the particular motor model. Follow the manufacturer’s guidelines for diagnosing and resolving issues.
- Seek Professional Assistance: If the troubleshooting steps outlined above do not resolve the issue or if the problem is beyond your expertise, it is advisable to seek assistance from qualified professionals, such as motor technicians or engineers. They can provide specialized knowledge and diagnostic tools to identify and address complex motor issues.
Remember that troubleshooting procedures may vary depending on the specific motor model, application, and environmental conditions. It’s essential to prioritize safety precautions and adhere to proper electrical and mechanical practices when working with brushless AC motors. When in doubt, consult with experts or refer to the manufacturer’s guidelines for accurate troubleshooting and resolution of issues.
editor by CX 2024-04-22
China OEM 63mm PMDC Brush Motor with 12V 100W (MB063KG250-4) vacuum pump design
Product Description
General information
- Ceramic magnets
- 7-slot Armature
- Copper-graphite brushes
- Insulation class: B
- Encoder, brake and planetary gearbox available
Specifications
| Specification | MB063KG250 |
| Rated Voltage | 12 (VDC) |
| No Load Speed | 3500 (RPM) |
| No Load Current | 0.8 (A) |
| Nominal Speed | 3000 (RPM) |
| Nominal Torque | 24 (Ncm) |
| Nominal Current | 8.7 (A) |
| Nominal Power | 100 (W) |
| Peak Torque | 202 (Ncm) |
| Peak Current | 64 (A) |
| Rotor Inertia | 750 (g.cm²) |
| Insulation Class | B |
| Weight | 1.7 (Kg) |
| L | 125 (mm) |
Mechanical
Characteristic diagram
Special shaft and other mechanical characteristic are optional.
Company Profile
- Originally motor division of CHINAMFG HangZhou- China National Machinery & Equipment Imp & Exp HangZhou Co.,Ltd., 1 of TOP 20 stated owned Machinery Group
- Privately owned Ltd company since 2000: HangZhou CHINAMFG Automation Technology Co. Ltd.
- Exmek Electric —Registered Brand Name
- Business: Design and manufacture of motion control products and components
- Highly qualified personnel
- UL, CE, RoHS certification
- ISO 9001, ISO 14000
Company Capabilities
- Modern Motor Design and Manufacture
- Part Set Design and Manufacture
- Magnetic Design Software-Motorsolver
- Molding
- Shipping world wide
Why CHINAMFG Electric
- Open for general discussion and questions
- Time to market or theatre of operations can be substantially reduced
- Talented team of engineers providing innovative technical solutions
- One stop “supplier” and complete sub-system
- Quality products provided at competitive low cost
- Ability to ship world wide
- On time delivery
- Training at Customer locations
- Fast service on return and repair results
- Many repeated customers
Applications:
Use for swimming pool, automotive, semiconductor, chemical & medical, industrial automation, power tool, instrument, measuring equipment, office automation, various OEM application.
We are open for general discussion and questions. Contact us now!
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Application: | Universal, Industrial, Household Appliances, Car |
|---|---|
| Operating Speed: | Adjust Speed |
| Excitation Mode: | Excited |
| Function: | Driving |
| Casing Protection: | Closed Type |
| Number of Poles: | 2 |
| Samples: |
US$ 65/Piece
1 Piece(Min.Order) | |
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| Customization: |
Available
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Where can individuals find reliable information and resources for learning more about brushless motors?
Individuals seeking reliable information and resources to learn more about brushless motors have several options available. Here are some recommended sources:
1. Manufacturer Websites:
Visit the websites of reputable brushless motor manufacturers. Manufacturers often provide detailed information about their products, including specifications, application guidelines, technical documentation, and educational resources. These websites can be a valuable source of accurate and up-to-date information about brushless motors.
2. Industry Associations and Organizations:
Explore industry associations and organizations related to electric motors, automation, or specific applications of brushless motors. These associations often provide educational materials, technical publications, webinars, and conferences that cover various aspects of motor technology. Examples include the Institute of Electrical and Electronics Engineers (IEEE), the American Society of Mechanical Engineers (ASME), or industry-specific associations like the Robotics Industries Association (RIA) or the Electric Motor Education and Research Foundation (EMERF).
3. Technical Forums and Online Communities:
Participate in technical forums and online communities focused on motors and related technologies. Platforms like Stack Exchange, Reddit, or specialized engineering forums often have dedicated sections where individuals can ask questions, learn from experts, and access valuable resources. Engaging with these communities can provide insights into real-world experiences and practical knowledge about brushless motors.
4. Books and Publications:
Consult books, textbooks, and technical publications that cover electric motors and motor control theory. Look for titles that specifically address brushless motor technology or broader topics such as electromechanical systems, power electronics, or mechatronics. Libraries, online bookstores, and academic institutions are good sources for finding relevant publications.
5. Online Tutorials and Courses:
Explore online tutorials and courses offered by educational platforms, engineering schools, or specialized training providers. Platforms such as Coursera, Udemy, or Khan Academy may offer courses related to electric motors, motor control, or mechatronics. These resources often provide structured learning experiences with video lectures, practical exercises, and assessments.
6. Research Papers and Technical Journals:
Access research papers and technical journals focused on electrical engineering, motor technology, or related fields. Platforms like IEEE Xplore, ResearchGate, or academic databases provide access to a wide range of scholarly articles and technical papers. These sources can offer in-depth knowledge about the latest advancements, research findings, and technical details related to brushless motors.
7. Industry Trade Shows and Exhibitions:
Attend industry trade shows and exhibitions that feature motor manufacturers, suppliers, and technology providers. These events often showcase the latest products, innovations, and advancements in motor technology. They also provide opportunities to interact with industry experts, attend technical presentations, and gather valuable information about brushless motors.
8. Online Product Catalogs and Datasheets:
Review online product catalogs and datasheets provided by motor manufacturers. These documents typically contain detailed specifications, performance data, and application notes for specific motor models. They can help individuals understand the capabilities, limitations, and features of different brushless motors.
Remember to critically evaluate the information obtained from various sources and cross-reference multiple resources to ensure accuracy and reliability. Brushless motor technology is a dynamic field, so staying updated with the latest research and industry developments is essential for gaining comprehensive knowledge.
How does the control system of a brushless motor contribute to precise speed regulation?
The control system of a brushless motor plays a crucial role in achieving precise speed regulation, allowing for accurate and stable motor operation. By utilizing advanced control algorithms and feedback mechanisms, the control system effectively manages the power delivery and motor performance, resulting in precise speed control. Here’s a detailed explanation of how the control system of a brushless motor contributes to precise speed regulation:
- Electronic Commutation: Brushless motors employ electronic commutation, which replaces traditional brushes and commutators with solid-state electronic components. The control system utilizes sensors, such as Hall effect sensors or encoders, to accurately detect the rotor position. By knowing the precise rotor position, the control system can switch the power supply to the motor windings at the optimal timing, ensuring smooth rotation and precise speed control.
- Pulse Width Modulation (PWM): The control system utilizes pulse width modulation to regulate the power delivered to the motor windings. By adjusting the width of the electrical pulses, the control system can control the average voltage applied to the motor, thereby regulating the motor speed. Precise timing and modulation of the PWM signals allow for fine-grained control over the motor speed, enabling precise speed regulation with minimal speed fluctuations.
- Feedback Control: The control system incorporates feedback control mechanisms to monitor and regulate the motor speed. Feedback is typically obtained from position sensors, such as encoders or Hall effect sensors, which provide real-time information about the rotor position. This feedback is compared to the desired speed reference, and any deviations are used to adjust the motor control signals. By continuously comparing the actual speed with the desired speed, the control system makes corrective adjustments to maintain precise speed regulation.
- Proportional-Integral-Derivative (PID) Control: Many brushless motor control systems employ PID control algorithms to achieve precise speed regulation. PID control utilizes a combination of proportional, integral, and derivative control actions to minimize speed errors and maintain stable operation. The proportional control component responds to the current speed error, the integral control component integrates past speed errors to eliminate steady-state errors, and the derivative control component anticipates speed changes to improve response time. The PID control algorithm continuously adjusts the motor control signals based on the speed error, contributing to precise speed regulation.
- Closed-Loop Control: The control system of a brushless motor typically operates in a closed-loop configuration, where the feedback from position sensors is used to regulate the motor speed. Closed-loop control ensures that the motor speed accurately follows the desired reference speed, even in the presence of external disturbances or varying load conditions. By continuously comparing the actual speed with the desired speed and making real-time adjustments, closed-loop control provides precise speed regulation and improves the motor’s ability to maintain a constant speed under changing operating conditions.
- Advanced Control Techniques: The control system may incorporate advanced control techniques, such as field-oriented control (FOC) or vector control, to achieve even higher precision in speed regulation. These techniques involve transforming the motor currents and voltages into a rotating reference frame, allowing for independent control of the magnetizing and torque-producing components. By decoupling these components and controlling them separately, advanced control techniques enable precise control of the motor speed and improve overall performance.
In summary, the control system of a brushless motor contributes to precise speed regulation through electronic commutation, pulse width modulation, feedback control, PID control algorithms, closed-loop control, and advanced control techniques. By utilizing these control strategies, the control system ensures accurate and stable motor operation, allowing for precise speed control and minimizing speed deviations in various applications.
Can you explain the working principle of brushless motors and how they generate motion?
Brushless motors operate based on the principles of electromagnetism and electronic commutation. Here’s an explanation of the working principle of brushless motors and how they generate motion:
1. Stator and Rotor:
A brushless motor consists of two main components: a stationary stator and a rotating rotor. The stator contains multiple coils or windings arranged in a specific pattern. These windings are typically made of copper wire and are evenly spaced around the inner circumference of the motor housing. The rotor, on the other hand, contains permanent magnets that are magnetized in a specific pattern.
2. Electronic Commutation:
The key difference between brushless motors and brushed motors is the method of commutation. In brushed motors, commutation is achieved mechanically through brushes and a commutator. However, in brushless motors, commutation is electronic. The commutation process is managed by an external controller or electronic speed controller (ESC).
3. Rotor Position Detection:
To determine the rotor’s position, brushless motors use sensors or Hall effect devices embedded in the stator. These sensors detect the position of the permanent magnets on the rotor as it rotates. The sensor information is sent to the controller, which uses it to determine the timing and sequence of current flow in the stator windings.
4. Current Distribution:
Based on the rotor position information, the controller determines which stator windings need to be energized to generate the desired motion. The controller then sends electric currents to the appropriate windings in a specific sequence. By energizing different windings at different times, the controller can create a rotating magnetic field in the stator.
5. Magnetic Field Interaction:
As the rotating magnetic field is generated in the stator, it interacts with the permanent magnets on the rotor. The interaction between the rotating magnetic field and the permanent magnets causes the rotor to rotate. The controller continuously adjusts the timing and amplitude of the currents flowing through the stator windings to maintain the rotation and control the motor’s speed and torque.
6. Continuous Rotation:
Brushless motors achieve continuous rotation by continuously updating the rotor position using the sensors and adjusting the current flow in the stator windings accordingly. The electronic commutation process ensures that the currents are switched at the right time and in the right sequence to maintain the rotation and provide precise control over the motor’s operation.
By using electronic commutation and precise control over the currents in the stator windings, brushless motors generate motion with high efficiency, reliability, and accuracy. They offer advantages such as higher speed capabilities, smoother operation, reduced maintenance requirements, and improved overall performance compared to brushed motors. These characteristics make brushless motors widely used in various applications, ranging from small consumer electronics to large industrial machinery.
editor by CX 2024-04-19
China manufacturer AC DC Brushless Conveyor Drum Motor Tmx 100W ~ 5500W Drum Motor Factory vacuum pump distributors
Product Description
Product General Technical Information
The electric roller is a new type of drive device which is placed n the roller body together with the motor and the reducer.
It is mainly used in fixed and movable type belt conveyors, to replace traditional types, in which motor, gearbox are separated with the drum.
The electric drum can run under a severe particulates environment; can withstand the flow of water and spray, can resist most of the erosion environment.
Due to the protection level, IP66 and stainless steel material have required, electric roller also applied to food processing, pharmaceutical and other industries.
The electric drum is driven by an AC asynchronous induction motor, suitable for most of the international common voltage, also can be customized according to customer requirements.
The electric roller contains oil as a lubricant and coolant, heat dissipation through the roller the transfer of heat.
When using an electric drum without a conveyor el, a special design can be carried out to ensure that the cooling.
integrated thermal protection: integrated constant temperature protection switch in the motor winding end. When the motor is overheating, the switch is switched on.
However the switch must be connected to a suitable external controller, the controller can interrupt the current conveyor to the motor in case of overheating.
integrated electromagnetic brakes: the integrated electromagnetic brake can delay and stop the weight of the given conveyor belt. It will directly affect the axis of the electric roller, driven by a DC electric rectifier.
Mechanical anti-reversing device: a mechanical anti-reversing device mounted on a rotating shaft can be used to increase the conveyor. In the case of current interruption, it can inhibit the transfer of the backward running.
Rotary encoder: the pulse can be used to position and control the speed and direction of rotation.
Technical Parameters
| Protection Level | IP66 |
| Ambient Temperature Range for General Application | +5ºC ~ +40ºC |
| Environmental Temperature Range of Low-Temperature Application | -25ºC ~ +15ºC |
| Cycle Time | Start/stop at most 3 times per minute. Using frequency converter or the use of special structure, the time may be higher |
| Mounting Height | 1000m Maximum Elevation 1000m |
| AC Drum Motor | ||||||||
| TMX | 138 | S | 250 | 2P | 350 | 0.56 | A | T |
| Product Code | Drum Code | Rated Power Capacity | Phase Number and Voltage | Pole Number (AC) | Drum Length | Linear Speed | Drum Shape | Drum Material |
| TMX – Oil Cold Overload Type
DG – Natural Cooling Type |
The diameter of the drum body is indicated, such as 80, 113, 138, 165, 216, 320, etc. | The rated power of the motor, such as 100W~5500W, is omitted in model W, and the digital representation is used. For example, 1100W with 1100 | Stands for single-phase 110V C stands for single-phase 220V S stands for three-phase ac 220V S3 represents three-phase 380V S4 represents three-phase 440V V represents non-standard voltage (voltage must be indicated when V is present) |
2P is the second pole 4P is the fourth pole 6P is the 6 pole 8P is the eight-pole |
The actual length of the cylinder is numbered and the unit mm is omitted. For example, 350mm with 350 | According to the actual linear velocity, the number of unit m/s is omitted. For example, 0.56m/s is expressed as 0.56 | A – Cylindrical Drum Body B – Drum Drum Body |
The default T is carbon steel, not standard, other: B3 – stainless steel 304 X – surface galvanizing G – surface hard chromium J – package wear-resistant rubber |
| TMX113 Mechanical Parameters Of Three Phase Drum Motor | ||||||||
| Rated Power | Motor Series | Gear Box Series | Reduction Ratio i | Rated Speed | Rated Speed | Rated Torque | Traction Force | Min Tube Length |
| KW | RPM | m/s | Nm | N | mm | |||
| 0.12 | 4 | 2 | 8.7 | 161 | 0.95 | 6 | 106 | 355 |
| 11.84 | 118 | 0.7 | 9 | 159 | ||||
| 15.23 | 92 | 0.54 | 11 | 195 | ||||
| 18.5 | 76 | 0.45 | 13 | 230 | ||||
| 20.72 | 68 | 0.4 | 15 | 265 | ||||
| 22.7 | 62 | 0.36 | 16 | 283 | ||||
| 32.38 | 43 | 0.26 | 23 | 407 | ||||
| 39.84 | 35 | 0.21 | 29 | 513 | ||||
| 51.8 | 27 | 0.16 | 37 | 655 | ||||
FAQ
Q: How about your company?
A: We are a gear motor factory established in 1995 and located in HangZhou city of china.
We have more than 1200 workers. Our main product is AC micro gear motor 6W to 250W,
AC small gear motor 100W to 3700W, brush DC motor 10W to 400W, brushless motor10W to 750W,
drum motor 60W to 3700W, planetary gearbox,and worm gearbox,etc.
Q: How about your quality control?
A: From raw material to finished products, we have strict and complete IPQC.
And the advanced test-ing machine can assure of qualified products delivered.
Q: How to choose a suitable motor?
A: If you have gear motor pictures or drawings to show us,
or you tell us detailed specs like volt-age, speed, torque, motor size, the working model of the motor, needed lifetime and noise level, etc.
please do not hesitate to let us know, then we can suggest a suitable motor per your request.
Q: Can you make the gear motor with customizing specifications?
A: Yes, we can customize per your request for the voltage, speed, torque, and shaft size and shape.
if you need additional wires or cables soldered on the terminal or need to add connectors, or capacitors, or EMC we can make it too.
Q: What’s your lead time?
A: Usually our regular standard product will need 10-15days, a bit longer for customized products.
But we are very flexible on the lead time, it will depend on the specific orders.
Q: What is your MOQ?
A: If delivered by sea, the minimum order is 100 pieces, if deliver by express, there is no limit.
Q: Do you have the item in stock?
A: l am sorry we do not have the item in stock, All products are made with orders.
Q: How to contact us?
A: You can send us an inquiry.
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Application: | Industrial |
|---|---|
| Speed: | Constant Speed |
| Function: | Driving, Control |
| Casing Protection: | Closed Type |
| Certification: | ISO9001, CCC |
| Brand: | Gpg |
| Customization: |
Available
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What is the role of electronic commutation in brushless AC motors?
Electronic commutation plays a crucial role in the operation of brushless AC motors. It enables precise control over the motor’s performance, including speed, torque, and direction of rotation. Here’s a detailed explanation of the role of electronic commutation:
In a brushless AC motor, the rotor consists of permanent magnets or electromagnets, while the stator contains multiple coils of wire known as windings. The stator windings are energized with alternating current (AC) to create a rotating magnetic field. However, for the motor to rotate smoothly and maintain synchronization with the rotating magnetic field, the current flow in the stator windings must be switched at specific moments.
This is where electronic commutation comes into play. Electronic commutation involves the use of sensors, typically Hall effect sensors, placed inside the motor to detect the position of the rotor magnets. These sensors provide feedback to an electronic controller, which determines the precise timing for switching the current flow in the stator windings.
The electronic controller uses the information from the sensors to determine which windings should be energized and when. It generates signals to activate the appropriate power switches or transistors, which control the current flow in the stator windings. By switching the current flow in a carefully timed manner, the controller ensures that the magnetic force on the rotor magnets is always in the correct direction to generate continuous rotation.
Electronic commutation offers several advantages in brushless AC motors:
- Precise Control: Electronic commutation allows for precise control over the motor’s operation. The controller can adjust the timing and duration of current switching to achieve the desired speed, torque, and direction of rotation.
- Efficiency: By precisely controlling the current flow, electronic commutation minimizes energy losses and improves overall motor efficiency. The controller can optimize the motor’s performance to match the load requirements, reducing unnecessary power consumption.
- Smooth Operation: Electronic commutation results in smoother motor operation compared to mechanical commutation in brushed motors. The absence of physical brushes and commutators eliminates the mechanical limitations and potential sources of friction, leading to quieter and vibration-free operation.
- Variable Speed Control: Electronic commutation facilitates variable speed control in brushless AC motors. By adjusting the timing and frequency of current switching, the controller can vary the motor’s rotational speed over a wide range, offering flexibility in different applications.
- Improved Reliability: Electronic commutation eliminates the wear and tear associated with brushes and commutators in traditional brushed motors. This contributes to the overall reliability and durability of brushless AC motors, reducing the need for frequent maintenance and replacement of worn-out components.
In summary, electronic commutation plays a vital role in brushless AC motors by providing precise control over the motor’s operation, improving efficiency, enabling variable speed control, ensuring smooth operation, and enhancing overall reliability. It is the key mechanism that allows brushless AC motors to deliver efficient and accurate motor performance in various applications.
How does the efficiency of a brushless AC motor compare to other motor types?
The efficiency of a motor refers to its ability to convert electrical power into mechanical power with minimal losses. Brushless AC motors are known for their high efficiency compared to other motor types. Here’s a detailed explanation of how the efficiency of brushless AC motors compares to other motor types:
1. Brushed DC Motors: Brushed DC motors, which use carbon brushes and a commutator, typically have lower efficiency compared to brushless AC motors. The brushes and commutator in brushed DC motors introduce friction and electrical losses, reducing overall efficiency. Additionally, the brush contact can cause sparking and wear over time, further impacting efficiency. Brushless AC motors, which eliminate the brushes and commutator, offer higher efficiency due to reduced friction and electrical losses.
2. Induction Motors: Induction motors are a type of AC motor commonly used in various applications. While induction motors are generally efficient, brushless AC motors can offer even higher efficiency. Brushless AC motors benefit from the absence of rotor windings and the elimination of energy losses associated with rotor resistance in induction motors. Additionally, brushless AC motors can achieve higher power factor and better control, further contributing to their overall efficiency.
3. Brushed AC Motors: Brushed AC motors, which use brushes and a commutator similar to brushed DC motors, typically have lower efficiency compared to brushless AC motors. The brushes and commutator in brushed AC motors introduce friction, wear, and electrical losses, reducing overall efficiency. Brushless AC motors eliminate these components, resulting in higher efficiency and improved performance.
4. Permanent Magnet Synchronous Motors (PMSMs): Brushless AC motors, also known as permanent magnet synchronous motors (PMSMs), are highly efficient compared to other motor types. PMSMs utilize permanent magnets on the rotor, eliminating the need for rotor windings and associated losses. The absence of brushes and commutators, as well as the use of advanced control techniques, contribute to the high efficiency of brushless AC motors. PMSMs are widely used in applications that require high efficiency, such as electric vehicles, industrial automation, and renewable energy systems.
It’s important to note that the efficiency of a motor can also depend on factors such as motor design, size, operating conditions, and control mechanisms. While brushless AC motors generally offer high efficiency, specific motor models and variations may vary in their efficiency performance. It is advisable to refer to the motor manufacturer’s specifications and efficiency data for accurate comparisons and selection of the most suitable motor for a given application.
How do you troubleshoot common issues with brushless AC motors?
When troubleshooting common issues with brushless AC motors, it’s important to systematically identify and address potential problems. Here’s a detailed explanation of the steps involved in troubleshooting common issues with brushless AC motors:
- Check Power Supply: Verify that the power supply to the motor is functioning correctly. Ensure that the voltage and frequency supplied to the motor match the specifications provided by the manufacturer. Check for any loose connections, blown fuses, or tripped circuit breakers that may be interrupting the power supply.
- Inspect Wiring and Connections: Examine the motor’s wiring and connections for any signs of damage, loose connections, or poor insulation. Ensure that the wiring is properly sized and connected according to the manufacturer’s guidelines. Tighten any loose connections and repair or replace any damaged wiring or insulation.
- Check Motor Temperature: Monitor the motor’s temperature during operation. Excessive heat can indicate issues such as overload, insufficient cooling, or problems with the motor’s ventilation system. Make sure that the motor is adequately cooled and that any cooling fans or ventilation openings are clean and unobstructed.
- Inspect Bearings: Check the motor’s bearings for any signs of wear, misalignment, or damage. Excessive noise, vibration, or increased heat can be indications of bearing issues. Lubricate or replace the bearings as necessary, following the manufacturer’s recommendations.
- Monitor Motor Performance: Observe the motor’s performance during operation. Look for any abnormal behavior such as erratic speed, excessive noise, or sudden changes in torque. Use appropriate measuring instruments to monitor parameters such as voltage, current, and speed to identify any deviations from expected values.
- Check Motor Control System: Evaluate the motor control system, including the motor controller or inverter, for any faults or malfunctions. Inspect the control circuitry, sensors, and feedback mechanisms. Ensure that the control signals and commands are reaching the motor correctly and that the control system is properly programmed and calibrated.
- Review Motor Protection Features: Check if the motor’s protection features, such as overcurrent, overvoltage, or thermal protection, are functioning correctly. Review the motor’s documentation or consult the manufacturer’s guidelines to understand the specific protection mechanisms employed and verify their proper operation.
- Refer to Manufacturer Documentation: Consult the motor’s documentation, technical manuals, or troubleshooting guides provided by the manufacturer. These resources often contain specific troubleshooting steps and recommendations tailored to the particular motor model. Follow the manufacturer’s guidelines for diagnosing and resolving issues.
- Seek Professional Assistance: If the troubleshooting steps outlined above do not resolve the issue or if the problem is beyond your expertise, it is advisable to seek assistance from qualified professionals, such as motor technicians or engineers. They can provide specialized knowledge and diagnostic tools to identify and address complex motor issues.
Remember that troubleshooting procedures may vary depending on the specific motor model, application, and environmental conditions. It’s essential to prioritize safety precautions and adhere to proper electrical and mechanical practices when working with brushless AC motors. When in doubt, consult with experts or refer to the manufacturer’s guidelines for accurate troubleshooting and resolution of issues.
editor by CX 2024-04-12
China wholesaler 57mm 12V 24V 36V 48V 15W 30W 50W 100W 150W BLDC Brushless DC Motor vacuum pump oil
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57MM 12V 24V 15W 30W 50W 100W 150W Brushless Dc Motor Specifications
Company Descriptions
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Q: What’s your main products?
A:We currently produce Brushed Dc Motors, Brushed Dc gear Motors, Planetary Dc Gear Motors, Brushless Dc Motors, Stepper motors and Ac Motors etc. You can check the specifications for above motors on our website and you can email us to recommend needed motors per your specification too.
Q:How to select a suitable motor?
A:If you have motor pictures or drawings to show us, or you have detailed specs like voltage, speed, torque, motor size, working mode of the motor, needed life time and noise level etc, please do not hesitate to let us know, then we can recommend suitable motor per your request accordingly.
Q: Do you have customized service for your standard motors?
A:Yes, we can customize per your request for the voltage, speed, torque and shaft size/shape. If you need additional wires/cables soldered on the terminal or need to add connectors, or capacitors or EMC we can make it too.
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A:Yes, definitely you can. After confirmed the needed motor specs, we will quote and provide a proforma invoice for samples, once we get the payment, we will get a PASS from our account department to proceed samples accordingly.
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A:We have our own inspection procedures: for incoming materials, we have signed sample and drawing to make sure qualified incoming materials; for production process, we have tour inspection in the process and final inspection to make sure qualified products before shipping.
Q:What’s your lead time?
A:Generally speaking, our regular standard product will need 25-30days, a bit longer for customized products. But we are very flexible on the lead time, it will depends on the specific orders
Q:What’s your payment term?
A:For all our new customers, we will need 40% deposite, 60% paid before shipment.
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A:We will response within 24 hours once get your inquires.
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A:We are certified by the third party SGS and we have exported to over 85 countries up to June.2017. You can check our reputation with our current customers in your country (if our customers do not mind), or you can order via alibaba to get trade assurance from alibaba to make sure your money is safe.
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Can you explain the role of magnetic fields in the operation of brushless motors?
In brushless motors, magnetic fields play a crucial role in the motor’s operation. These magnetic fields are generated by permanent magnets and electromagnets within the motor. Here’s a detailed explanation of the role of magnetic fields in brushless motors:
1. Permanent Magnets:
Brushless motors typically incorporate permanent magnets, often made of rare-earth materials like neodymium, in the rotor or the outer shell (stator) of the motor. These magnets create a steady magnetic field that interacts with the electromagnets in the motor’s stator. The permanent magnets establish a fixed magnetic flux pattern and provide a source of magnetic energy in the motor. The strength and arrangement of the permanent magnets determine the motor’s torque and power characteristics.
2. Electromagnets:
The stator of a brushless motor contains electromagnets, which are typically made of copper wire coils wound around iron cores. When an electric current flows through these coils, they generate magnetic fields. The interaction between the magnetic fields of the permanent magnets and the electromagnets is what enables the motor’s operation. By controlling the current flowing through the stator coils, the magnetic fields can be manipulated to produce rotational motion in the motor.
3. Magnetic Field Alignment:
The primary goal of the magnetic fields in a brushless motor is to achieve proper alignment between the rotor and the stator. As the magnetic fields interact, they create forces that cause the rotor to move in a rotational manner. The stator’s electromagnets generate magnetic fields that attract or repel the permanent magnets on the rotor, causing the rotor to rotate. By sequentially energizing different electromagnets in the stator, the magnetic field alignment is continuously adjusted, resulting in continuous rotation of the rotor.
4. Commutation:
In order to maintain the rotational motion, brushless motors employ a technique called commutation. Commutation involves switching the current flow to different stator coils at specific times during the rotation. This switching is coordinated with the position of the rotor to ensure smooth and continuous rotation. By changing the magnetic field orientation in the stator, the rotor is constantly pulled or pushed to follow the rotating magnetic field, allowing the motor to generate torque and maintain its rotational motion.
5. Sensor Feedback:
In some brushless motors, position sensors, such as Hall effect sensors or encoders, are used to provide feedback on the rotor’s position. These sensors detect the magnetic field changes as the rotor rotates and provide information to the motor controller. The motor controller uses this feedback to accurately determine the timing and sequence of stator coil energization, ensuring precise commutation and optimal motor performance.
6. Efficiency and Control:
The proper alignment and control of magnetic fields in brushless motors contribute to their efficiency and control characteristics. By using permanent magnets and carefully designed stator electromagnets, brushless motors can achieve high power density, reduced energy losses, and improved overall efficiency. Additionally, the ability to control the magnetic fields through precise commutation and feedback allows for precise speed control, torque control, and position control in various applications.
In summary, magnetic fields play a fundamental role in the operation of brushless motors. The interaction between permanent magnets and electromagnets, along with proper commutation and control, enables the conversion of electrical energy into rotational motion. Understanding and manipulating magnetic fields are essential for optimizing the performance, efficiency, and control of brushless motors in a wide range of applications.
Are there specific applications where brushless motors are more suitable than others?
Yes, there are specific applications where brushless motors are more suitable than others. The unique characteristics and advantages of brushless motors make them well-suited for certain types of applications. Here are some examples:
1. Electric Vehicles (EVs) and Hybrid Electric Vehicles (HEVs):
Brushless motors are highly suitable for EVs and HEVs due to their high efficiency, precise control, and fast acceleration capabilities. They are commonly used in electric drivetrains to provide propulsion and drive the wheels. Brushless motors contribute to the overall energy efficiency of electric vehicles and help maximize the range and performance.
2. Robotics and Automation:
Brushless motors are extensively employed in robotics and automation systems. They offer high torque, precise position control, and rapid acceleration, making them ideal for robotic arms, joints, and grippers. Brushless motors enable accurate and controlled movements, contributing to the efficiency and productivity of industrial and collaborative robots.
3. Aerospace and Aviation:
Brushless motors find applications in the aerospace and aviation sectors. They are used in aircraft systems such as flight control surfaces, landing gear actuation, fuel pumps, and environmental control systems. Brushless motors provide reliable and precise motion control in critical aerospace applications, contributing to the safety and efficiency of aircraft operations.
4. Medical and Healthcare:
In the medical and healthcare sector, brushless motors are employed in various medical devices and equipment. They are used in surgical tools, prosthetics, medical pumps, laboratory equipment, imaging systems, and more. Brushless motors offer quiet operation, precise control, and compact size, making them suitable for applications where accuracy, reliability, and patient comfort are critical.
5. Industrial Machinery and Equipment:
Brushless motors play a crucial role in various industrial machinery and equipment. They are used in machine tools, conveyors, pumps, compressors, and other industrial automation applications. Brushless motors provide reliable and efficient motion control, contributing to the productivity and performance of industrial processes.
6. Consumer Electronics:
Brushless motors are found in numerous consumer electronic devices. They power computer cooling fans, hard disk drives, drones, camera gimbals, electric toothbrushes, and other portable devices. Brushless motors in consumer electronics provide efficient and reliable operation while minimizing noise and vibration. Their small size, lightweight, and high-speed capabilities contribute to the design and functionality of modern consumer electronic products.
These are just a few examples of applications where brushless motors are more suitable than others. However, it’s important to note that brushless motors have a wide range of applications and can be utilized in various industries and systems where efficient and precise motion control is required. The specific requirements of an application, such as power, speed, torque, size, and control, will determine the suitability of brushless motors.
What are the key components of a brushless motor, and how do they function together?
A brushless motor consists of several key components that work together to generate motion. Here are the key components of a brushless motor and their functions:
1. Stator:
The stator is the stationary part of the brushless motor. It consists of a core, typically made of laminated iron, and multiple coils or windings. The windings are evenly spaced around the inner circumference of the motor housing. The stator’s function is to generate a rotating magnetic field when electric current passes through the windings.
2. Rotor:
The rotor is the rotating part of the brushless motor. It typically consists of permanent magnets, which are magnetized in a specific pattern. The rotor’s function is to interact with the stator’s magnetic field and convert the electromagnetic energy into mechanical rotation.
3. Hall Effect Sensors:
Hall effect sensors are used to detect the position of the rotor magnets. These sensors are typically mounted on the stator, facing the rotor. They provide feedback to the motor controller about the rotor’s position, allowing the controller to determine the timing and sequence of current flow in the stator windings.
4. Motor Controller:
The motor controller is an electronic device that controls the operation of the brushless motor. It receives signals from the Hall effect sensors and processes them to determine the appropriate timing and sequence of current flow in the stator windings. The motor controller sends electrical pulses to the stator windings to generate the rotating magnetic field and control the motor’s speed and torque.
5. Power Supply:
The power supply provides the electrical energy needed to drive the brushless motor. It can be a battery, DC power source, or an AC power source with an inverter. The power supply feeds the motor controller, which converts the input power into the appropriate signals to drive the stator windings.
6. Commutation Electronics:
Commutation electronics are responsible for switching the currents in the stator windings at the right time and in the right sequence. The commutation electronics, typically integrated into the motor controller, ensure that the appropriate stator windings are energized as the rotor rotates, creating a rotating magnetic field that interacts with the rotor magnets.
7. Bearings:
Bearings are used to support the rotor and allow it to rotate smoothly. They reduce friction and enable efficient transfer of mechanical power. Bearings in brushless motors are typically ball bearings or sleeve bearings, depending on the motor design and application requirements.
These key components of a brushless motor work together to generate motion. The motor controller receives feedback from the Hall effect sensors to determine the rotor position. Based on this information, the controller sends electrical pulses to the stator windings, creating a rotating magnetic field. The interaction between the rotating magnetic field and the permanent magnets on the rotor causes the rotor to rotate. The motor controller continuously adjusts the timing and amplitude of the currents flowing through the stator windings to maintain the rotation and control the motor’s speed and torque.
By integrating these components and utilizing electronic commutation, brushless motors offer advantages such as high efficiency, precise control, low maintenance, and improved performance compared to brushed motors. They find applications in various industries where efficient and reliable motion control is required.
editor by CX 2024-04-04