Specializing in the design and manufacture of automotive motor armatures and stators.

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Characteristics and advantages of brushless motor stator and rotor

Release Time:

2023-10-08

Characteristics and Advantages of Brushless Motor Stator and Rotor

A brushless motor stator and rotor uses electronic commutation. Compared to traditional brushed motors, it has many unique characteristics and advantages. This article will detail the characteristics and advantages of brushless motor stators and rotors and discuss their applications in various fields.

One characteristic of brushless motor stators and rotors is high energy efficiency. Using electronic commutation, brushless motors avoid the frictional losses of traditional brushes, thus improving energy utilization efficiency. This means that with the same electrical energy input, a brushless motor can produce greater output power, providing stronger power.

Secondly, brushless motor stators and rotors have a long lifespan. Because brushless motors do not have brushes, the problem of brush wear is eliminated. This results in a longer service life for brushless motors, maintaining high-efficiency operation for extended periods, reducing the frequency of maintenance and part replacement, and lowering operating costs.

In addition, brushless motor stators and rotors also have high-speed performance. Because the electronic commutation speed of brushless motors is faster, higher speeds can be achieved. This makes brushless motors excel in applications requiring high-speed rotation, such as aerospace, automotive, and industrial machinery.

At the same time, brushless motor stators and rotors also have lower noise and vibration levels. Traditional brushes produce noise and vibration during operation, while the electronic commutation method of brushless motors can reduce this unnecessary noise and vibration, making brushless motors more suitable for applications with high noise requirements.

Furthermore, brushless motor stators and rotors also have good control performance. Because brushless motors use electronic commutation, more precise motor control can be achieved. This makes brushless motors excel in applications requiring high-precision control, such as robotics, medical devices, and precision instruments.

In summary, brushless motor stators and rotors have characteristics and advantages such as high energy efficiency, long lifespan, high-speed performance, low noise and vibration levels, and good control performance. This has made the application of brushless motors increasingly widespread in many fields, bringing more possibilities to various industries.

As an innovative motor technology, brushless motor stators and rotors have unique characteristics and many advantages. They are not only energy-efficient and long-lasting but also have high-speed performance, low noise and vibration levels, and good control performance. In applications across various fields, brushless motor stators and rotors are playing an increasingly important role. The development of brushless motors has opened a new chapter in modern motor technology, bringing more convenience and possibilities to our lives.






Brushless motor stator and rotor

09-13

2022

Methods for winding the armature of a DC brushless automotive motor

The method for winding the armature winding of a DC brushless car motor is to leave a section of the cable end free and tie it tightly to the shaft. Hold the car armature with one hand, and wind the coil inductance clockwise with the other hand. Taking a five-slot armature as an example, the first coil is 1-5, the second coil is 2-6, then 3-7..., and so on. The sides of many components are on the next layer. The 5-9 components have one side on the next layer and the other side on the top layer. The sides of many components are on the top layer. In order to ensure the insulation between the top layer and the next layer components, it is advisable to place 0.1-0.15mm thick insulating paper pads in between. When the coil inductance in the slot reaches a certain level, a crossbar is needed to make it reach the bottom of the slot. When winding the coil inductance, the wire should be tightened first. Whether in the slot or the wire connection part, it is necessary to prevent the occurrence of crossed turns to prevent excessive space occupation and short circuit between turns due to partial stress of the wire. After all the windings are wound, the wire ends of the same winding component are bundled together, then the insulation layer of the wire connector is removed, different color waterproof sleeves are used, and they are embedded in the corresponding commutator segments. The important role of the armature in a DC brushless motor: DC motor,

08-22

2022

Design rules for automotive armatures

Automotive armature manufacturers indicate that single-layer windings are not suitable for large-capacity motors, and small-capacity motors should not be double-layered. The magnetic flux density of the motor core should not be too high or too low. When the frequency and thickness of the silicon steel sheet core material are constant, the iron loss depends on the magnetic flux density. If the magnetic flux density is too high, the iron loss increases, and the motor efficiency decreases. The increased heat from the iron core increases the motor temperature, and the increased excitation power increases the motor power factor, so the magnetic flux density of the core should not be too high. Try to avoid excessive saturation of the magnetization curve. If the magnetic density is too low, it will increase the amount of motor material used, increasing the cost. The rotor teeth are narrow, the magnetic density is high, the slot entry wire is large, that is, the automotive armature slots are large. Automotive armature manufacturers indicate that due to poor air conduction, there are many gaps in the slots, affecting the coils and easily damaging the heat dissipation of the insulation material, accelerating the increase in motor temperature. The slot fill factor of the motor slots cannot be too high or too low. Usually, the slot fill factor for low-speed motors is 75% to 85%, which can effectively prevent the enamelled wire from loosening in the slots. The design of the motor rotor slot shape should use parallel trapezoidal recesses as much as possible, and the edges of the recesses should not have sharp corners. Try to use a circular bottom recess, because the circular slot is filled with aluminum, which is easy to injection mold and the stator chip is easy to insert. The coil current density should not be...

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