Structure of the China 3 phase induction motor
1, stator iron center
Function: A part of the motor's magnetic circuit on which a stator winding is placed.
Construction: The stator core is generally made of Silicon steel sheets with an insulating layer on a thick surface of 0.35 to 0.5 mm. The inner circle of the core has a evenly distributed slot for embedding the stator winding.
2, stator winding
Role: It is the circuit part of the motor, which is connected to the three-phase alternating current to generate a rotating magnetic field.
Construction: Three structures arranged at 120 ° electrical angles in space and arranged by teams are exactly the same around the group. Each coil of these windings is embedded in each slot of the stator according to certain rules.
3, seat
Role: Fixed stator iron center and front and rear end cover to support the rotor, and play the role of protection, heat dissipation and so on.
Construction: The seat is usually cast iron, the large asynchronous motor seat is generally welded with steel plates, and the seat of the miniature motor is cast aluminum. The seat of the closed motor has a heat dissipation bar outside to increase the heat dissipation area. There are ventilation holes at both ends of the seat of the protective motor, so that the air inside and outside the motor can be directly convection to facilitate heat dissipation.
