A magnetic flux modulate permanent magnet vernier motor with built-in stator

Abstract

The invention provides a magnetic flux modulate permanent magnet vernier motor with stator compose of an outer rotor, an inner rotor and a stator arranged in a motor housing in sequence from outside in, There are twelve outer rotor salient poles (2-1) on the inner surface of the outer rotor 2, and eight inner rotor salient poles (3-1) on the outer surface of the inner rotor (3) near the outer rotor side, close to the inner side of the stator. The surface has a round surface structure and is embedded with sixteen pairs of permanent magnets (3-2). The stator (4) is connected to the casing (1) byiron blocks (13). The stator core has six stator teeth on the circumference (4-1). ), and three magnetic flux modulation poles (4-2) are placed on each stator tooth, Armature winding (6) and direct current excitation winding (7) of three-phase centralized type with two pairs of pole pairs are simultaneously arranged in the stator slot. The invention has the advantages of increasing torque outputcapacity, torque density, speed regulating range and mechanical strength, and simple processing and assembly.

Description

technical field [0001] The invention belongs to the field of hybrid electric vehicles, in particular to a permanent magnet vernier motor with built-in magnetic flux modulation in the stator. Background technique [0002] With the crisis of energy depletion and environmental pollution becoming more and more serious, hybrid vehicles, as a transition product between traditional internal combustion engine vehicles and pure electric vehicles, have become a hot research topic. As an electromechanical energy conversion device in a hybrid vehicle, the performance of the motor transmission system will directly affect the quality of the vehicle. Therefore, those skilled in the art have provided motor transmission systems with different structures. [0003] "Design and research of a new external rotor magnetic gear compound motor", Zhang Dong et al., Chinese Journal of Electrical Engineering Vol. Motor, which integrates a high-speed brushless DC motor with an outer rotor and a magneti...

AI Technical Summary

Problems solved by technology

Its disadvantages are: the outer rotor magnetic gear composite motor has three layers of air gaps, resulting in complex structure, mutual coupling of magnetic field, and complicated magnetic field distribution, which makes the analysis of the motor difficult

At the same time, the modulation ring is composed of alternating magnetic conductive blocks and non-magnetic conductive blocks, and adopts the form of laminated sheets, resulting in poor mechanical strength and difficult processing

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