Radial-axial air gap type multiphase transverse flux permanent magnet motor

Abstract

The invention discloses a radial-axial air gap type multiphase transverse flux permanent magnet motor. Multi-phase motor units are staggered at an electrical angle of 360 / m and then are axially arranged; each phase motor unit comprises a stator composed of a pole-shoe-shaped stator core and a pole-shoe-shaped permanent magnet, a radial-axial rotor and an armature winding. The permanent magnets aremagnetized in the circumferential direction, and the magnetization directions of every two adjacent permanent magnets are opposite. The armature winding is wound in a groove of the stator; the radial-axial rotor comprises radial teeth, axial teeth and a right-angle yoke; the radial teeth are opposite to the stator radial outer side iron core; the axial teeth are opposite to the shoe-shaped toothparts of the stator core, the radial teeth and the axial teeth are connected through right-angle yokes, the adjacent radial teeth are spaced by 360 / n degrees of mechanical angle, the adjacent axial teeth are spaced by 360 / n degrees of mechanical angle, and the radial teeth and the axial teeth under the same pair of poles are spaced by 180 / n degrees of mechanical angle. The pole-shoe-shaped statorcore is adopted, so that the relative area of axial stator and rotor teeth is increased, the section of a groove is increased, the number of turns of a winding is increased, and thus flux linkage is increased.

Description

technical field [0001] The invention belongs to the technical field of transverse flux motors. Background technique [0002] The transverse flux motor structure was proposed by German professor Herbert Weh in the early 1980s. The stator teeth and armature windings of this structure are perpendicular to each other in space, and the tooth width and coil cross-sectional size can be independently designed, which can fundamentally achieve greater the torque density. The transverse flux permanent magnet motor has the characteristics of low speed and high torque, small interphase coupling, and strong fault tolerance. It is especially suitable for electric direct drive fields such as wind power generation, electric vehicles, helicopters, and ship drives. [0003] Since the development of transverse flux permanent magnet motors, a variety of topological structures have been proposed on the basis of the prototype machine. According to the different placement methods of the rotor perm...

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Problems solved by technology

[0009] Purpose of the invention: In order to solve the problems of low permanent magnet utilization rate, large leakage flux, and low air gap magnetic density in the prior art, the present invention provides a radial-axial air gap type multi-phase transverse magnetic flux permanent magnet motor

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