Motor type

Motor definition

An electric motor is a device that converts electrical energy into mechanical energy.

Classified by power supply type

Direct current motor

An electric motor using a DC power supply.

Type

• Series-Wound: With series-wound winding, suitable for applications requiring large starting torques.

• Shunt-Wound: With parallel winding, it is suitable for applications requiring constant speed operation.

• Compound Wound: combines the characteristics of series excitation and shunt excitation, both higher starting torque and better speed adjustment ability.

• Permanent magnet: The use of permanent magnets as part of the rotor, simple structure, high efficiency.

Ac motor

 An electric motor that uses AC power.

Type

Induction motor

• Three-phase induction motor: The most common type of AC motor, suitable for most industrial applications.

• Single-phase induction motor: suitable for small household appliances.

• Synchronous motor: The speed is strictly synchronized with the power supply frequency and is often used in applications requiring precise speed control.

• Servo motor: Used in closed-loop control systems, with high precision and fast response characteristics.

Classification by working principle

Induction motor

Principle: A rotating magnetic field is generated through the stator winding to drive the rotor to rotate.

Features: simple structure, durable, easy to maintain, widely used in industrial production.

Synchronous motor

Principle: The rotor speed is strictly synchronized with the power supply frequency and controlled by the excitation system.

Features: Provides a stable speed for applications requiring precise speed control.

Permanent magnet motor

Principle: Use permanent magnets as part of the rotor to reduce energy consumption.

Features: Small size, light weight, high efficiency, suitable for applications requiring efficient operation.

Classification according to control mode

Dc brushless motor

Principle: Use electronic commutator instead of mechanical commutator to reduce wear.

Features: Long life, high efficiency, low noise, suitable for applications requiring long continuous operation.

Stepper motor

Principle: Through step power control motor rotation, to achieve accurate position control.

Features: Suitable for applications requiring precise positioning and speed control.

Classification by application

Industrial motor

Features: high power, high reliability, suitable for long time continuous operation.

Household motor

Features: small power, compact size, suitable for household appliances.

Special purpose motor

Features: Designed for specific applications, such as elevators, fans, pumps, etc.

Sum up

There are many kinds of motors, according to different classification standards can be divided into DC motor, AC motor, induction motor, synchronous motor, permanent magnet motor, DC brushless motor, stepper motor and so on. Each type of motor has its own unique characteristics and applications. Choosing the right type of motor needs to be determined according to the specific application requirements.