For most people, they are more familiar with electric motors. In the previous tweets, we discussed with you the stator and rotor of the motor, including the connection between the motor and the power supply. Some netizens asked, for a motor, how do we define who is the stator and who is the rotor?

According to the relative position of the parts, there are inner rotor motors and outer rotor motors; in daily life, the more common electric bicycle motors are typical outer rotor motors, that is, the rotor envelops the stator, and most motors are stators enveloping rotors, that is, the stator of the motor is outside, that is, inner rotor motors.

From the connection with the power supply, the stator is generally connected to the power supply; from the relative running characteristics of the parts, the stator of the motor is in a relatively static state, while the rotor of the motor is in a running state, which also conforms to the naming characteristics of the stator and rotor of the motor.

That is, the stator of the motor is a relatively static part, and the rotor is a moving part, as long as the static and dynamic parts are distinguished.

The stator of the motor is connected to the power supply and is a component that generates a magnetic field. The winding of the motor is fixed to the stator part of the motor, and the rotor is not directly connected to the power supply. For generator products, the rotor moves under the action of external force, and the stator part outputs the generated electricity.

From the perspective of safety and reliability, it is safer for the charged body to be relatively static, and only static parts can realize the static connection of the conductor. On the one hand, the running connection involves the connected parts, and on the other hand, the indirect connection is always less reliable than the direct connection. From the perspective of product reliability and stability, the connection between the power supply and the stator is also the most reasonable.