Magnetic grid permanent magnet double salient pole motor for electric vehicles

Abstract

An electric vehicle magnetic grid type permanent magnetism doubly salient motor belongs to the electric vehicle motor technology field, comprises a shaft, a front armature iron core, a front armature winding, a front rotor iron core, a front permanent magnet, a permanent magnet iron core, a back permanent magnet, a back rotor iron core, a back armature winding, a back armature iron core and a shell, and is characterized in that the disc-shaped front rotor iron core and back rotor iron core are fixed on the shaft at intervals, the permanent magnet iron core fixed on the shell is between the front rotor iron core and the back rotor iron core, and the permanent magnets are fixed on the two surfaces of the permanent magnet iron core towards the rotor iron cores respectively and uniformly; the front armature iron core and the back armature iron core which are fixed on the shell are at the two sides of the front rotor iron core and the back rotor iron core respectively, armature poles are arranged on the armature iron cores, and the armature windings are wound on the armature poles. The rotor iron cores of the technical scheme of the present invention are magnetic grid-shaped, and are large in contact area and specific power, so that the electric vehicle magnetic grid type permanent magnetism doubly salient motor is very suitable for being used as an electric vehicle motor having higher requirements for the power density.

Description

technical field [0001] The invention relates to a magnetic grid type permanent magnet double salient pole motor of an electric vehicle, which belongs to the technical field of electric vehicle motors. Background technique [0002] The permanent magnet doubly salient motor is a variable reluctance motor, which is similar in structure to the switched reluctance motor. Its stator and rotor are both salient pole structures, made of silicon steel sheets stacked, simple structure, no winding on the rotor, high motor reliability and high power density. On the basis of the switched reluctance motor, the permanent magnet material is introduced to obtain a permanent magnet double salient pole motor. It has the advantages of the permanent magnet motor and the switched reluctance motor, and at the same time overcomes the problems of complicated drive control, high cost, low utilization rate, Pulse sound restlessness and other problems. [0003] Since the 1990s, with the successful dev...

AI Technical Summary

Problems solved by technology

On the basis of the switched reluctance motor, the permanent magnet material is introduced to obtain a permanent magnet double salient pole motor. It has the advantages of the permanent magnet motor and the switched reluctance motor, and at the same time overcomes such as complicated drive control, high cost, low utilization rate, Pulse noise and other problems

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