Radial-axial air gap type three-phase disc type transverse flux permanent magnet motor

Abstract

The invention discloses a radial-axial air gap type three-phase disc type transverse flux permanent magnet motor. Each phase of motor comprises a stator and a radial-axial rotor, wherein the stator iscomposed of a pole-shoe-shaped stator iron core and a pole-shoe-shaped permanent magnet. The permanent magnets are magnetized in the circumferential direction, the magnetization directions of every two adjacent permanent magnets are opposite, and the armature windings are wound in grooves formed after the stator core and the permanent magnets are arranged alternately. The radial-axial rotor comprises radial teeth, axial teeth and a right-angle yoke; the radial teeth and the axial teeth are connected through the right-angle yoke, the adjacent radial teeth are spaced by a 360 / n-degree mechanical angle, the adjacent axial teeth are spaced by a 360 / n-degree mechanical angle, the radial teeth and the axial teeth under the same pair of poles are spaced by a 180 / n-degree mechanical angle, and nis the number of pole pairs of the radial-axial air gap type three-phase disc type transverse flux permanent magnet motor. According to the invention, the pole-shoe-shaped stator core enables the relative area of the axial stator and rotor teeth to be increased, the groove cross section to be increased, and the number of turns of the windings to be increased, thereby increasing the flux linkage, and the radial-axial rotor structure enables the torque density of the motor to be improved.

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...

AI Technical Summary

Problems solved by technology

The motor is easy to cool, the rotor structure is simple and reliable, and it provides a higher torque density when the amount of permanent magnets is small, but the stator structure is more complicated, and there is no magnetic accumulation structure, and the air gap flux density is low.

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