Transverse flux permanent magnet motor of axial magnetic field flux switching type

Abstract

The invention relates to a transverse flux permanent magnet motor of an axial magnetic field flux switching type, and the motor comprises a plurality of single-phase motor modules, wherein the plurality of single-phase motor modules adopt coaxial radial nesting and / or coaxial axial combination, and the single-phase motor modules of different phases are mutually staggered by electrical angles; eachsingle-phase motor module is of a single-stator single-rotor structure or a single-stator double-rotor structure or a double-stator single-rotor structure; each single-phase motor module comprises aspecial-shaped stator iron core, a special-shaped permanent magnet, a rotor and an armature winding; the M special-shaped stator cores and the M special-shaped permanent magnets are alternately arranged in the circumferential direction to form a stator with a magnetic flux switching type circular ring structure, an annular groove is formed in the circular ring structure, and an armature winding isinstalled in the annular groove; the rotor is of an axial magnetic field disc type structure, and each rotor comprises a rotor yoke with a through hole and a rotor salient pole. The permanent magnetof the motor is arranged on the stator of the motor, and meanwhile, an axial magnetic flux construction mode is adopted, so that the torque density of the motor is improved.

Description

technical field [0001] The invention relates to an axial magnetic flux switching type transverse flux permanent magnet motor, which belongs to the technical field of permanent magnet motors. Background technique [0002] Transverse flux permanent magnet motor is a new type of motor that has emerged in recent years. Compared with traditional permanent magnet motors, it has outstanding advantages such as compact structure, high torque density, and good low-speed performance. Moreover, each phase of the stator of this motor is independent of each other, can be controlled by phase separation, and has better fault tolerance performance. However, the structure of the traditional transverse flux permanent magnet motor is not perfect. If the existing transverse flux motor needs to increase the torque density or increase the number of motor phases, it needs to connect multiple stators with the same structure coaxially. It is more complex and, due to its long axial length, is only su...

AI Technical Summary

Problems solved by technology

However, the structure of the traditional transverse flux permanent magnet motor is not perfect. If the existing transverse flux motor needs to increase the torque density or increase the number of motor phases, it needs to connect multiple stators with the same structure coaxially. Complicated and only suitable for long shaft applications due to their long axial length

Moreover, when most transverse flux permanent magnet motors are used as multi-phase motors, the axial length will be too large, which will lead to a large iron loss.

In addition, the permanent magnets of the traditional transverse flux motor are installed on the rotor, resulting in poor heat dissipation of the motor, and it is not easy to provide higher power

[0003] Therefore, how to solve the problem of large volume and complex structure while optimizing the performance of transverse flux permanent magnet motor has become an important issue.

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