What is a motor

A motor, in simple terms, is a device that converts electrical energy into mechanical energy or other forms of energy,

It is a core component of modern industry and life, widely used in various fields, including communication

Communication, manufacturing, household appliances, etc. To gain a deeper understanding of motors, we need to start with their basic principles

Expand on the types and working principles.

1、 Basic principles of motors

The working principle of a motor is based on the action of electromagnetic induction and electromagnetic force. When an electric current passes through a

When conducting a wire, a magnetic field is generated that surrounds the wire. If the wire is placed in a magnetic field

Due to the presence of electric current, the wire will be subjected to a force. According to this principle, it can be explained

The working principle of an electric motor: Due to the passage of current, the wire is subjected to the force of a magnetic field, resulting in

The relative motion between the wire and the magnetic field converts electrical energy into mechanical energy.

2、 Classification of motors

1. DC motor

DC motor is the simplest type of motor, and its basic components include stator and rotor

And electric brushes, etc. The electric brush introduces current into the winding through a DC power supply, generating a stator magnetic field, and then rotates

Zi is composed of permanent magnets or magnets generated by electric current. DC motors have a simple structure

The characteristics of being single and easy to control the speed have been widely used in electric tools and small household appliances.

2. AC asynchronous motor

AC asynchronous motor is the most widely used type of motor, mostly used in the industrial field. Joint structure

The structure of a DC motor is more complex, mainly including the stator, rotor, and windings on the rotor. hand over

The asynchronous motor generates a magnetic field by exciting the stator winding with alternating current, and the magnetic field rotates to produce

The rotating magnetic field drives the rotor to rotate, thereby achieving energy conversion. AC asynchronous motors have

The structure is complex, suitable for various loads, and the speed can be adjusted.

3. Brushless DC motor

Brushless DC motor is a new type of motor developed in recent years, which is different from traditional DC motors

Different, brushless DC motors do not have brushes or brush rings on their rotors, reducing friction and energy

Loss. Its main components include rotor, stator, and sensors. Brushless DC electrical equipment

It has advantages such as high efficiency, low noise, and long lifespan, and is currently widely used in electric vehicles and aviation

In the fields of aerospace and household appliances,