Permanent magnet switch flux linkage motor

Abstract

The invention provides a permanent magnet switch magnetic flux linkage motor comprising a stator iron core, a rotor iron core, armature windings and permanent magnets. The stator iron core comprises multiple stator grooves and stator teeth which are arranged between the adjacent two stator grooves. The stator teeth are provided with permanent magnet grooves used for placing the permanent magnets. The armature windings are arranged in the stator grooves. Magnetic separation holes are arranged on connecting parts of the permanent magnet grooves and the stator teeth. Magnetic separation bridges are substituted by the magnetic separation holes so that area of the connecting parts on the periphery of stator punching sheets is increased, and deformation in the process of assembling, testing and using stators can be reduced. Besides, the magnetic separation holes are additionally arranged in the internal diameters of the stator punching sheets to act as the connecting parts so that mechanical strength of the stators is further enhanced.

Description

technical field [0001] The invention relates to a flux linkage motor, in particular to a permanent magnet switch flux linkage motor. Background technique [0002] Motors are the main drive components in modern industrial systems, and motors with excellent performance are crucial to the entire drive system. In recent years, with the development of power electronics technology, permanent magnet materials and microcomputer control technology, the permanent magnet brushless DC motor has developed rapidly. The permanent magnet brushless DC motor has the characteristics of high efficiency and high power density. With the high performance permanent magnet The advent of materials has greatly improved the power density and performance of permanent magnet brushless DC motors. Switched reluctance motors are used more and more widely because of their simple structure and good reliability. The permanent magnet switched flux linkage motor obtained by placing permanent magnets in the mid...

AI Technical Summary

Problems solved by technology

Since the connection part of the punching sheet is very thin, it is easy to cause deformation and breakage of the punching sheet, which increases the production scrap rate

In addition, the laminated iron core also has the disadvantage of poor mechanical strength, and the inner circle of the stator is easily deformed due to external pressure, which in turn affects the operating performance of the motor.

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