A high-speed surface-mounted dual-rotor axial flux permanent magnet motor

Abstract

The disclosure proposes a high-speed surface-embedded double-rotor axial flux permanent magnet motor, which includes: two rotors and a stator located between the two rotors; Air gap, the distance between the two air gaps is equal and the length can be adjusted axially according to requirements; the surface of the iron core of the rotor is inlaid with permanent magnets, and the permanent magnets are configured in a crescent state to realize the sine of the flux linkage and the back electromotive force. The motor adopts an axial magnetic flux structure, which has the advantages of high torque density, high power density, high efficiency and high integration. There is no axial magnetic pull on the rotating shaft, and the bearing is not affected by magnetic pull, which can effectively increase the reliability and mechanical life of the motor.

Description

technical field [0001] The disclosure belongs to the technical field of motor equipment, and in particular relates to a high-speed surface-embedded double-rotor axial flux permanent magnet motor. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art. [0003] High-speed motors have many advantages such as small size, high speed, high power density, and fast dynamic response, and can be directly connected to the load, eliminating the need for variable speed gears, further reducing the size and weight of the entire drive system and improving transmission efficiency, so it is widely used It is used in industrial fields such as electric vehicles, flywheel energy storage, and high-speed grinding machines. [0004] At present, the research on traditional high-speed motors mainly focuses on high-speed induction motors, high-speed permanent magnet motors and hi...

AI Technical Summary

Problems solved by technology

According to the different topological structures of motors, permanent magnet motors can be divided into radial flux, axial flux and transverse flux structures. The optimization design of traditional high-speed permanent magnet motors is generally based on radial flux structures, which cannot fundamentally Therefore, it is difficult to make great progress in new high-speed applications such as electric vehicles

[0010] As a new type of topology, the transverse flux structure has the advantages of high torque density, but it also has the disadvantages of large magnetic flux leakage and low power factor, and the required power electronic converter capacity is larger than that of traditional motors.

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