Electric motor, also called a motor, is a device that converts electrical energy into mechanical energy through electromagnetic action. Because electricity has several forms, the mechanical structure is also different, the form of the magnetic field will also be different, and the use of the motor itself will also be different. So there will be many types of motors, according to different standards, there will be different names and categories

1. Divide by the form of electric energy

1. Electricity has two forms, AC and DC, so motors can be generally divided into two categories: AC motors and DC motors.

2. There are two types of AC power: single-phase and three-phase, so Motor can be divided into single-phase AC motors and three-phase AC motors

3. The voltage is divided into high and low voltage levels, so there are also high-voltage motors and voltage motors.

Second, according to the principle of classification

1. According to the rotation difference, it can be divided into synchronous motor and asynchronous motor

2. The synchronous motor has different permanent magnet synchronous motor, hysteresis synchronous motor and reluctance synchronous motor according to the magnetic field.

3. Asynchronous motors are available in induction or AC commutator. The induction type includes three-phase asynchronous motor and shaded pole asynchronous motor. AC commutator motors are also divided into repulsion motors and series excitation motors.

3. Classification according to structure

1. The rotor structure is different, there are winding rotor motor and squirrel-cage rotor motor, and permanent magnet rotor motor.

2. According to the different positions of rotor and stator, it can be divided into inner rotor motor and outer rotor motor.

3. According to whether there is carbon brush, it can be divided into brushed motor and brushless motor

4. Brushed motors have permanent magnet brushed and electromagnetic DC motors

5. According to the form of excitation, DC motors can be divided into other forms of excitation, series excitation, parallel excitation and compound excitation.

6. Depending on the magnetic material, there are also ferrite motors, rare earth permanent magnetoelectric and AlNiCo permanent magnet motors

Four, according to different speed classification

1. The speed is high or low, so there are high-speed motors, low-speed motors, constant-speed motors, speed-regulating motors,

2. Depending on the number of poles, there are 2 pole, 4 pole, 8 pole, 16 pole, 32 pole and other motors

3. Low speed motor, torque motor, gear motor, direct drive motor, claw pole synchronous motor

5. Distinguish according to usage

1. According to the action point, it can be divided into power motor and control motor

2. According to different operation modes, it can be divided into direct start motor, soft start motor, and speed control motor

3. Control motors, including servo motors and stepper motors

6. Industry and process classification

1. Power tools

2. Fan water pump

3. Home appliances

4. Automotive

5. Industry

7. Other

1. According to the type of protection, there are closed, open, waterproof, submersible, watertight and explosion-proof.

2. Different cooling methods, including self-air cooling, forced air cooling, water cooling, and oil cooling

3. Different insulation grades, such as AEBFHC grade

4. According to different installation methods, there are vertical and horizontal types

5. According to the different working hours, there are continuous work payment, short-term work payment and intermittent work payment.