H-shaped iron core hybrid excitation axial flux switching hub motor

Abstract

The invention discloses an H-shaped iron core mixed excitation axial magnetic flux switching hub motor, which comprises a stator, a first rotor and a second rotor, the first rotor and the second rotor are arranged on both sides of the stator for rotation, and the stator comprises a plurality of stator modules And the non-magnetic isolation ring, the non-magnetic isolation ring is arranged between the ends of the adjacent stator modules, each stator module contains two H-shaped stator cores, permanent magnets, armature windings and field windings, two H The stator cores are arranged end to end with gaps at the ends, the permanent magnets are fixed between the gaps between the two H-shaped stator cores, and the armature windings are wound on the adjacent ends of the two H-shaped stator cores and the permanent magnets. On the outside, the excitation winding is arranged between the two armature windings. Both the first rotor and the second rotor are composed of a rotor yoke and a plurality of rotor teeth, and the plurality of rotor teeth are fixed on the inner surface of the rotor yoke at equal intervals along the circumferential direction of the rotor yoke. The invention enhances the fault tolerance of the motor, improves the output torque and widens the range of speed regulation.

Description

technical field [0001] The invention relates to a hub motor, in particular to an H-shaped iron core hybrid excitation axial flux switching hub motor. Background technique [0002] With the increasingly serious problems of environmental pollution and energy shortage, pure electric vehicles have gradually become the mainstream trend of the development of new energy vehicles in the future due to their characteristics of zero emission of pollutants. Electric vehicle hub motor technology is a motor technology that integrates power, transmission and braking devices into the hub. It greatly simplifies the mechanical parts of electric vehicles, increases the space inside the vehicle, improves the efficiency of the vehicle, and reduces the acceleration time. . Therefore, in-wheel motors have become a research hotspot for domestic and foreign scholars and automobile manufacturers. Belgian scholar C. Versele and others proposed a double-rotor single-stator axial field permanent magne...

AI Technical Summary

Problems solved by technology

However, for in-wheel motors, the flat structure can effectively use the space in the wheel to meet the requirements of low-speed and high-torque; the motor works in a working environment with water, oil, dust, etc. for a long time, and the reliability of electrical components is not as good as that of mechanical components. There is a high possibility of failure during the operation of the car, and the existing flux-switching permanent magnet motor is not suitable for hub motors, so it is necessary to design a new type of flux-switching permanent magnet motor to meet the requirements of automotive hub motors

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