The motor uses the principle of electromagnetic induction to realize the conversion of electrical energy and mechanical energy. It is mainly used in modern industrial productionThree-phase asynchronous motor. Let's take a quick look at its structure:
The main part of the motor is composed of a stator and a rotor, the fixed part is called the stator, the rotating part is called the rotor; On account ofThree-phase asynchronous motorThe stator generates an exciting rotating magnetic field, absorbs electrical energy from the power supply, and generates and converts electrical energy into mechanical energy on the rotor through the rotating magnetic field; There must be a certain empty gap between the stator and the rotor, which is called the air gap to ensure the free rotation of the rotor.
Three-phase asynchronous motorStructure diagram:
1Composition of the stator
The stator consists of a stator core, a stator winding and a frame. The stator core is a silicon steel sheet used for insulation; The stator winding is a coil embedded in the inner slot of the stator core, consisting of three groups of windings, which can be connected into a star shape or a triangle; The frame is generally made of cast iron or cast steel and is mainly used to fix the core and winding.2Composition of rotor
The rotor consists of a rotor core, a rotor winding and a rotating shaft. The rotor core is laminated with insulated silicon steel sheets; The rotor winding is divided into two forms: squirrel cage type (squirrel cage type asynchronous motor) and wound type (wound type asynchronous motor); The rotating shaft is added with mechanical load.
Three-phase asynchronous motorBecause of its simple structure, reliable operation and convenient use, it has become a widely used motor in production.
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