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Axial complementary stator type magnetic gear motor structure

A technology of motor structure and magnetic gear, applied in electrical components, electromechanical devices, electric components, etc., can solve the problems of increasing rotor eddy current loss and reducing working harmonics.

Inactive Publication Date: 2021-07-06
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The magnetic gear motor adopts the principle of magnetic field modulation, and its non-working sub-harmonics are also very large, which will reduce the working sub-harmonics and increase the eddy current loss of the rotor.

Method used

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  • Axial complementary stator type magnetic gear motor structure
  • Axial complementary stator type magnetic gear motor structure
  • Axial complementary stator type magnetic gear motor structure

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Embodiment Construction

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0031] An axial complementary stator magnetic gear motor structure, the motor structure includes a first stator 1 and a second stator 2, and the first stator 1 and the second stator 2 form a complementary double stator structure, such as figure 1 As shown, a rotor 3 is provided between the first stator 1 and the second stator 2 , the first stator 1 , the second stator 2 and the rotor 3 are coaxially distributed, and an air gap is formed between the double stators an...

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Abstract

The invention discloses an axial complementary stator type magnetic gear motor structure, which comprises a first stator and a second stator, wherein the first stator and the second stator form a complementary double-stator structure, a rotor is arranged between the first stator and the second stator, the first stator comprises a stator yoke part, stator tooth parts distributed in a circumferential array are arranged below the stator yoke part, a stator groove is formed between every two adjacent stator tooth parts, one end, close to the stator yoke part, of each stator groove is of an arc-shaped structure, the other end of each stator groove is provided with an open notch, the two sides of each stator tooth part are provided with protruding parts, and the first stator and the second stator are the same in structure. According to the invention, the motor structure can effectively increase the torque density and reduce the cogging torque while reducing the non-working subharmonic and the rotor eddy current; and due to the axially symmetrical structure, axial unbalanced magnetic pulling force can be eliminated, low-torque-pulsation and high-performance operation of the motor is achieved, the performance index of the motor is effectively improved, and the motor has good manufacturability.

Description

technical field [0001] The invention relates to a motor structure, in particular to an axial complementary stator type magnetic gear motor structure. Background technique [0002] The permanent magnet synchronous motor uses the permanent magnets distributed according to certain rules in the rotor to establish the main magnetic field, which makes the permanent magnet synchronous motor have the advantages of higher efficiency and higher power factor compared with the traditional electric excitation motor. The permanent magnets can be arranged in various ways in the rotor core, so the structure of the permanent magnet motor is diversified, and the optimized structure of the permanent magnet motor can effectively improve the performance index of the motor. In-wheel motors for electric vehicles need to use axial permanent magnet motors instead of radial permanent magnet motors. Axial permanent magnet motors have a flatter shape and are also called disc motors. Compared with radi...

Claims

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Application Information

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IPC IPC(8): H02K49/10
CPCH02K49/102
Inventor 林明耀王帅林克曼
Owner SOUTHEAST UNIV
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