A motor is a device that converts electrical energy into mechanical energy. It uses a current-carrying coil (that is, the stator winding) to generate a rotating magnetic field and acts on the rotor (such as a squirrel-cage closed aluminum frame) to form a magnetoelectric force rotating torque. Electric motors are divided into DC motors and AC motors according to the power source used. Most of the motors in the power system are AC motors, which can bemotor for air conditional suppliers from China synchronous motors or asynchronous motors (the motor's stator magnetic field rotation speed and rotor rotation speed do not maintain synchronous speed). The motor is mainly composed of a stator and a rotor. The direction in which a conducting wire is forced to move in a magnetic field is related to the direction of the current and the direction of the magnetic induction line (the direction of the magnetic field). The working principle of the motor is that the magnetic field acts on the current to force the motor to rotate.