What are the common types of motors?

Update:30 Mar 2018
Summary:

★What are the common types of motors? Answer: Common mo […]

★What are the common types of motors?
Answer: Common motors include: brushed hub motor, brushless hub motor, brushless hub motor, brushless hubless motor, side-mounted motor, etc.

★How to distinguish between high and low speed motors from the type of motor?
Answer: A brushed hub motor and brushless hub motor belong to high speed motor; B brushless hub motor and brushless hubless motor belong to low speed motor.

★How is the motor's power defined?
Answer: The motor power refers to the ratio of the mechanical energy output by the motor to the power provided by the power supply.

★ Why choose the power of the motor? What is the significance of choosing motor power?
A: The choice of motor rated power is a very important and complicated issue. Under load, if the rated power of the motor is too large, the motor will always operate at light load, the capacity of the motor itself will not be fully utilized, and it will become a “big horse-drawn vehicle”. At the same time, the motor will have low efficiency and poor performance, which will increase. Operating costs. In turn, the motor rated power requirements are small, that is, "small horse-drawn carts," the motor current exceeds the rated current, the motor loss is increased, the efficiency is low, the small thing, it is important to affect the life of the motor, even if the overload is not much The motor life will also be reduced more; overload, will destroy the insulating properties of the motor insulation material and even burn. Of course, if the rated power of the motor is small, the load may not be dragged at all, causing the motor to be in a starting state for a long time and being damaged by overheating. Therefore, the rated power of the motor should be selected in strict accordance with the operating conditions of the electric vehicle.

★ Why do you have three Halls for general DC brushless motors?
Answer: Briefly, in order for the brushless DC motor to rotate, there must always be a certain angle between the magnetic field of the stator coil and the magnetic field of the permanent magnet of the rotor. The process of rotating the rotor is also the process of changing the direction of the magnetic field of the rotor. In order to make the magnetic field of the two exist angles, to a certain extent, the magnetic field direction of the stator coil must be changed. So how do you know to change the direction of the stator magnetic field? It depends on the three Halls. It can be thought that the three Halls are tasked with telling the controller when to change the direction of the current.

What is the approximate range of power consumption of the brushless motor Hall?
Answer: The power consumption of brushless motor Hall ranges from 6mA to 20mA.

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