Different types of permanent magnet motors

The permanent magnet motor is a new product in the mechanical equipment industry. Because of its own advantages and functions, it has received enthusiastic attention and recognition from various industries. And there are many characteristics of permanent magnet motors, which we have introduced in detail before. In addition, there are many types of this motor, and we need to distinguish them. Below, the editor will take you to distinguish various types of permanent magnet motors!

1. Classification according to working power supply

According to the different working power sources of permanent magnet motors, they can be divided into DC motors and AC motors. AC motors can also be divided into single-phase motors and three-phase motors.

2. Classification according to structure and working principle

According to the structure and working principle, permanent magnet motors can be divided into DC motors, asynchronous motors and synchronous motors. Synchronous motors can also be divided into permanent magnet synchronous motors, reluctance synchronous motors and hysteresis synchronous motors.

Asynchronous motors can be divided into induction motors and AC commutator motors. Induction motors are further divided into three-phase asynchronous motors, single-phase asynchronous motors and shaded pole asynchronous motors. AC commutator motors are further divided into single-phase series motors, AC and DC dual-purpose motors and repulsion motors.

DC motors can be divided into brushless DC motors and brushed DC motors according to their structure and working principle. Brushed DC motors can be divided into permanent magnet DC motors and electromagnetic DC motors. Electromagnetic DC motors are divided into series DC motors, shunt DC motors, separately excited DC motors and compound excited DC motors. Permanent magnet DC motors are further divided into earth permanent magnet DC motors, ferrite permanent magnet DC motors and alnico permanent magnet DC motors.

3. Classification according to starting and running modes

Permanent magnet motors can be divided into capacitor-started single-phase asynchronous motors, capacitor-run single-phase asynchronous motors, capacitor-start-run single-phase asynchronous motors and split-phase single-phase asynchronous motors according to starting and running modes.

4. Classify by use

Permanent magnet motors are distinguished according to their own uses and can be divided into drive motors and control motors. Driving motors are further divided into motors for power tools (including drilling, polishing, grinding, grooving, cutting, reaming and other tools), home appliances (including washing machines, electric fans, refrigerators, air conditioners, tape recorders, video recorders, DVDs, etc.) machines, vacuum cleaners, cameras, hair dryers, electric shavers, etc.) and other general small mechanical equipment (including various small machine tools, small machinery, medical equipment, electronic instruments, etc.). Control motors are divided into stepper motors and servo motors.

5. Classification according to the structure of the rotor

Permanent magnet motors are distinguished according to the structure of the rotor, which can be divided into cage induction motors (formerly known as squirrel cage asynchronous motors) and wound rotor induction motors (formerly known as wound asynchronous motors).

6. Classification according to operating speed

Motors can be divided into high-speed motors, low-speed motors, constant-speed motors and speed-regulating motors according to their operating speed. Low-speed motors can be divided into gear reduction motors, electromagnetic reduction motors, torque motors and claw pole synchronous motors.

In addition to being divided into stepped constant speed motors, stepless constant speed motors, stepped variable speed motors and stepless variable speed motors, speed regulating motors can also be divided into electromagnetic speed regulating motors, DC speed regulating motors, and PWM variable frequency speed regulating motors. and switched reluctance speed motors. The rotor speed of an asynchronous motor is always slightly lower than the synchronous speed of the rotating magnetic field. The rotor speed of a synchronous motor always remains synchronous regardless of the load.

7. There are also wheel hub motors classified according to structural position.