How is the motor made? Detailed structure of the motor

How is the motor made?

A motor (commonly referred to as "motor") refers to an electromagnetic device that converts or transmits electrical energy in accordance with the law of electromagnetic induction. It is indicated by the letter M in the circuit. Its main function is to generate drive torque as a power source for electrical appliances or various machines. The generator is indicated by the letter G in the circuit. Its main role is to use electrical energy to convert into mechanical energy.

The motor consists essentially of an electromagnet winding or distributed stator winding for generating a magnetic field and a rotating armature or rotor and other accessories. Under the action of the rotating magnetic field of the stator winding, it has a current passing through the armature squirrel cage aluminum frame and is rotated by the action of the magnetic field.

How is the motor made? Detailed structure of the motor

Motor manufacturing process content

1. Machining process: including rotor machining and shaft machining.

2. Iron core manufacturing process: the manufacture of punched sheets including magnetic pole cores and the lamination of punching sheets.

3, winding manufacturing process: including coil manufacturing, winding embedded and insulation treatment (including short-circuit ring welding).

4, squirrel cage rotor manufacturing process: including the rotor core stacking, rotor die casting.

5, motor assembly process: including the riveting of the bracket assembly, the main and auxiliary stator riveting and assembly of the motor.

basic structure

1. The structure of a three-phase asynchronous motor consisting of a stator, a rotor and other accessories.

(1) Stator (still part)

1, the stator core

Function: A part of the magnetic circuit of the motor and the stator windings placed on it.

Structure: The stator core is generally formed by laminating and laminating a silicon steel sheet having an insulating layer on the surface of 0.35 to 0.5 mm thick, and a uniformly distributed groove is punched in the inner circle of the core for embedding the stator winding.

There are several types of stator core slots:

Semi-closed groove: The efficiency and power factor of the motor are higher, but the winding and insulation are more difficult. Generally used in small low voltage motors.

Semi-opening groove: It can be embedded with molded windings, and is generally used for large and medium-sized low-voltage motors. The so-called forming winding, that is, the winding, can be placed in the groove before being insulated. Open type slot: used to embed the formed winding, the insulation method is convenient, mainly used in high voltage motors.

How is the motor made? Detailed structure of the motor

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