Hybrid excitation-type stator partition-type hybrid permanent magnet flux switching memory motor

Abstract

The invention discloses a hybrid excitation-type stator partition-type hybrid permanent magnet flux switching memory motor, which comprises an outer stator, an inner partition stator and a middle rotor, wherein the inner partition stator has a structure of an inner layer and an outer layer closely attached together, the outer layer is formed by an inner stator iron core and NdFeB permanent magnets, the NdFeB permanent magnets are uniformly embedded in the inner stator iron core along the circumferential direction, the NdFeB permanent magnets are magnetized tangentially, and the magnetizing directions of two adjacent NdFeB permanent magnets are opposite; and the inner layer is formed by pulse magnetizing windings and AlNiCo permanent magnets capable of being magnetized and demagnetized in an online mode, the AlNiCo permanent magnets are uniformly arranged along the circumferential direction, an inner stator groove is arranged between adjacent two AlNiCo permanent magnets, and the pulse magnetizing windings serially connected from beginning to end in sequence are placed in the inner stator grooves and are wound on the AlNiCo permanent magnets. Thus, under the same motor size, the amount of permanent magnets and the amount of armature windings can be increased to enhance torque density, the magnetic strength of the AlNiCo permanent magnets can be adjusted in an online mode, and a wide speed regulation range is provided.

Description

technical field [0001] The invention belongs to the field of motor manufacturing, and relates to a permanent magnet flux switching motor and a memory motor, which are used to drive hybrid vehicles and electric vehicles. Background technique [0002] As one of the key executive components of hybrid electric vehicles and electric vehicles, the driving performance of the vehicle drive motor directly affects the performance of the whole vehicle of hybrid electric vehicles and electric vehicles. In the field of drive motors for vehicles, permanent magnet synchronous motors are the most widely used. Permanent magnet synchronous motors with NdFeB as excitation materials have the advantages of high efficiency and high power density. Compared with the traditional rotor permanent magnet permanent magnet synchronous motor, the stator permanent magnet motor has neither permanent magnet nor winding on the rotor. It has the advantages of stable structure, simple installation, convenient h...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a rotor with simple structure and hybrid permanent magnet material, which has high efficiency, high Combination excitation stator partition type hybrid permanent magnet flux switching memory motor with torque density and wide speed range

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