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Axial magnetic field modulation type composite motor with improved flux modulation structure and improved magnetizing direction

A technology of magnetization direction and axial magnetic field, which is applied in the direction of electrical components, electromechanical devices, etc., can solve the problems of complex fixing method of magnetic ring and low utilization rate of permanent magnet, etc., and achieve compact and simple motor structure, improved mechanical stability, The effect of improving the utilization rate

Active Publication Date: 2015-04-29
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of complex fixing method of magnetic ring of existing axial flux modulation motor and low utilization rate of permanent magnets, and to provide an axial magnetic field modulation composite motor with improved magnetic modulation structure and magnetization direction

Method used

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  • Axial magnetic field modulation type composite motor with improved flux modulation structure and improved magnetizing direction
  • Axial magnetic field modulation type composite motor with improved flux modulation structure and improved magnetizing direction
  • Axial magnetic field modulation type composite motor with improved flux modulation structure and improved magnetizing direction

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specific Embodiment approach 1

[0024] Specific implementation mode one: the following combination Figure 1 to Figure 5 Describe this embodiment, the axial magnetic field modulation compound motor with the magnetic modulation structure and the magnetization direction improvement described in this embodiment, it includes a rotating shaft 1, a stator 2, two rotors and two magnetic modulation rings 4, and the stator 2 is fixed on On the rotating shaft 1, two rotors are symmetrically arranged on both sides of the stator 2 in a mirror image. There is an air gap between each rotor and the stator 2. Each rotor is connected to the rotating shaft 1 through a bearing.

[0025] Each air gap side surface of the stator 2 is bonded and fixed with a magnetic modulation ring 4, and the magnetic modulation ring 4 is fixedly connected with the rotating shaft 1; the magnetic modulation ring 4 is composed of magnetic modulation blocks evenly distributed along the circumferential direction;

[0026] The rotor includes a rotor d...

specific Embodiment approach 2

[0028] Specific implementation mode two: the following combination Figure 1 to Figure 5 Describe this embodiment, this embodiment will further explain Embodiment 1, each air gap side surface of the stator 2 is evenly provided with a plurality of winding slots, the plurality of winding slots are evenly distributed along the circumferential direction of the stator side wall, the stator 2 two There is a one-to-one correspondence between the winding slots on the side surface of the air gap; each pair of winding slots is provided with an annular stator winding;

[0029] The number of pole pairs P of the permanent magnet ring 3-2 1 and ring stator winding pole pair number P 2 The sum is the number N of magnetic adjustment blocks in the magnetic adjustment ring 4 s .

[0030] Working principle: By analyzing the air-gap harmonic magnetic field obtained by adding a voltage source to the stator armature winding and the air-gap harmonic magnetic field generated by the permanent magne...

specific Embodiment approach 3

[0037] Specific Embodiment 3: This embodiment further describes Embodiment 1 or 2, and the material of the rotating shaft 1 is aluminum.

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Abstract

The invention discloses an axial magnetic field modulation type composite motor with an improved flux modulation structure and an improved magnetizing direction and belongs to the technical field of motors. The axial magnetic field modulation type composite motor with the improved flux modulation structure and the improved magnetizing direction aims to solve the problems that according to an existing axial flux modulation motor, flux modulation rings are fixed in a complicated way, and the utilization rate of permanent magnets is low. According to the axial magnetic field modulation type composite motor with the improved flux modulation structure and the improved magnetizing direction, a flux modulation ring is fixed to the side surface of each air gap of a stator in an adhering mode, and the flux modulation rings are fixedly connected with a rotary shaft; each flux modulation ring is composed of flux modulation blocks which are evenly distributed in the circumferential direction in a dispersed mode; each rotor comprises a rotor disc and a permanent magnet ring, the permanent magnet rings adhere to the side surfaces of air gaps of the rotor discs, each permanent magnet ring is composed of multiple permanent magnets which are evenly distributed in the circumferential direction, and each permanent magnet is composed of four permanent magnet segments which are evenly arranged in the circumferential direction; in the clockwise direction, the first permanent magnet segment and the third permanent magnet segment in each permanent magnet are magnetized in the circumferential direction oppositely, and the second permanent magnet segment and the fourth permanent magnet segment in each permanent magnet are magnetized in the axial direction oppositely.

Description

technical field [0001] The invention relates to an axial magnetic field modulation composite motor with improved magnetic modulation structure and magnetization direction, and belongs to the technical field of motors. Background technique [0002] Modern drive systems have always tended to use direct drive, which can save the mechanical gear transmission system, eliminate the vibration and noise of mechanical gears, reduce mechanical losses, obtain higher system efficiency, and save energy. However, in order to output a larger torque, the directly driven motor generally has a relatively large volume, and when the load is running, the current is relatively large, which increases the cost of the control circuit components. [0003] Due to the advantages of low noise, high efficiency, convenient maintenance, high reliability, and overload protection, magnetic gears have attracted widespread attention. As a further development of the magnetic gear transmission system, the compo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K16/02
Inventor 谢颖张岩连国一邵一刘海东
Owner HARBIN UNIV OF SCI & TECH
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