An electric motor is an electric rotary machine that converts electrical energy into mechanical energy. It mainly consists of an electromagnet winding or distributed stator winding for generating a magnetic field and a rotating armature or rotor. Under the action of the rotating magnetic field of the stator winding, it has a current passing through the practical side of the stator winding and is rotated by the magnetic field.

It is a machine that converts electrical energy into mechanical energy. Usually, the work part of the motor is rotated. This type of motor is called a rotor motor. It is also called a linear motor.

Motors can provide a wide range of power, from milliwatts to kilowatts. Electric motors need to drive machine tools and pumps; electric locomotives and elevators require electric traction. In addition, fans, refrigerators, washing machines, and various motor toys in family life are inseparable from electric motors. Thus, electric motors use in all aspects of modern social life.