외부 로터 모터와 내부 로터 모터의 구조적 차이는 무엇인가요?

There are many types of motors, and now the performance in all aspects is getting better and better. Among them, inner rotor motors and outer rotor motors are commonly used motor products, used in many industries, so what are the differences and differences between the two in structure?

Generally speaking, the difference between the two is between internal and external.

An internal rotor motor is the rotor motor and spindle rotate together, the motor frame is fixed, the housing is used as the stator, and the internal shaft and spindle are used as the rotor.

An external rotor motor is a rotor that rotates with the motor housing, the motor shaft is fixed, the housing is the rotor, and the internal shaft and main shaft are the stator.

The inner rotor usually has few poles, high speed and low torque; the outer rotor usually has many poles, low speed and high torque.

Under the same rotor weight, the moment of inertia of internal rotation is not larger than that of external rotation, so the kv of internal rotation is high and the torque is low; external rotation has a larger moment of inertia, which improves the efficiency and the efficiency of the motor under unstable load.

The built-in rotation motor has low torque and high speed. Usually, vehicle models are used, while external rotating motors have better heat dissipation.

Usually, the rotating parts are embedded with magnets and do not rotate.

For the same rotor weight, the moment of inertia of internal rotation is not as high as that of external rotation, so the kv of internal rotation is high and the torque is low, while external rotation is just the opposite.

If the internal rotor motor burns out, it will be difficult to repair because the enameled wire cannot wind itself.

The outer rotor motor uses DC power, which provides a strong power support for the normal operation of mechanical equipment. Without the external rotor motor, the machinery and equipment cannot be used properly.

So in addition to the difference between the two, how we must always do a good job of maintenance to do so.

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