Lateral magnetic flux motor

Abstract

The invention provides a lateral magnetic flux motor, and the motor comprises a stator, a first rotor and a second rotor, wherein the stator comprises a stator yoke, a plurality of first stator teethand a plurality of second stator teeth. The stator yoke is formed by the axial stacking of a plurality of stator yoke punching sheets, and each of the first stator teeth and each of the second statorteeth are each composed of a plurality of identically-shaped stator tooth punching sheets which are stacked in a radial direction. The first stator teeth and the first stator teeth are fixed at two sides of the stator yoke in the axial direction. The first rotor and the second rotor are respectively disposed at two sides of the stator in the axial direction, and the first rotor includes a first back iron and a plurality of first permanent magnets that are magnetized in the axial direction. The second rotor includes a second back iron and a plurality of second permanent magnets that are magnetized in the axial direction. The first permanent magnet and the second permanent magnet are in mirror symmetry. The magnetic flux motor provided by the invention not only simplifies the production process, but also improves the power density of the motor; by designing a lateral magnetic circuit structure, the motor achieves the electrical and magnetic decoupling, and the groove area is no longer restricted by a magnetic load.

Description

technical field [0001] The present invention relates to the technical field of motors, in particular to a transverse flux motor. Background technique [0002] With the gradual improvement of environmental protection awareness, motor efficiency has received more and more attention. From the perspective of motor design, the iron loss of the motor is determined by the magnetic induction intensity, which is directly related to the stator tooth width; the copper loss of the motor is determined by the winding resistance, which is related to the slot width (area). For motors with traditional structures, the slot width and tooth width are two mutually restrictive variables. Under the premise of a fixed shape, it is impossible to optimize both simultaneously. However, the transverse flux motor is an orthogonal decoupling of the electric load and the magnetic load, and no longer There are constraints that can greatly improve motor efficiency. [0003] Although the transverse flux mo...

AI Technical Summary

Problems solved by technology

[0003] Although the transverse flux motor has the characteristics of electromagnetic decoupling and high efficiency, its magnetic circuit structure prevents the stator laminations from being laminated in the axial direction to reduce eddy current loss. Whether the stator core is laminated tangentially or radially, There are problems such as complex punching process and difficult winding, which restrict the engineering promotion of transverse flux permanent magnet motor

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