What is a permanent magnetic synchronous motor?

Last Update Time: 2019-01-07 15:23:44

The permanent magnetic synchronous motor(PMSM)  has the advantages of small size, compact structure, low power consumption, stable operation, stable rotation, large output torque and high supply voltage, the low change has no effect on its speed.


The permanent magnet synchronous motor is composed of a reduction gear box and an electric motor.


The motor is composed of a front shell, a permanent magnet rotor, a stator winding, a main shaft and a back shell.


Both the front shell and the back shell are made of 0. 8mm thick structural steel plate, which are formed by drawing, and the shell is out of six radiating poles at a certain angle and arrangement, the upper and the lower pole claws are mutually staggered to form a stator, and the stator windings are sheathed outside the pole claw. A stainless steel main shaft with a diameter of 1.6 mm is riveted in the center of the rear shell, which mainly acts as a fixed rotor.


The permanent magnet rotor is made of ferrite powder and adhesive by pressing and sintering. The 2P=12 pole is magnetized evenly on the surface, and the N and S poles are interlaggered in the circle of the rotor. The permanent magnetic field intensity is usually at 0.07~0.08T. When assembling, the stator winding is embedded in the back shell, and the motor is riveted by the way of punching and riveting.


This article is from Allicdata Electronics.