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Axial magnetic field hybrid excitation brushless motor

A hybrid excitation, brushless motor technology, applied in the direction of motors, synchronous motors with stationary armatures and rotating magnets, synchronous machines, etc., can solve the problems of reducing system efficiency, irreversible demagnetization of permanent magnets, etc., to avoid demagnetization, good Operating characteristics, easy to adjust the effect

Inactive Publication Date: 2022-06-07
XIANGTAN HENGCHUANG ELECTRONICS DEVICES
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This not only reduces the efficiency of the system, but may also lead to irreversible demagnetization of the permanent magnets

Method used

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  • Axial magnetic field hybrid excitation brushless motor
  • Axial magnetic field hybrid excitation brushless motor
  • Axial magnetic field hybrid excitation brushless motor

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Embodiment Construction

[0024] The following will be combined with the accompanying drawings in the embodiments of the present invention, the technical solution in the embodiments of the present invention will be described clearly and completely, it is clear that the embodiments described are only part of the embodiments of the present invention, and not all embodiments. Based on embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative labor, are within the scope of protection of the present invention.

[0025] It should be noted that all directional indications in embodiments of the present invention (such as up, down, left, right, front, rear ...) It is only used to explain the relative position relationship between the components under a particular pose (as shown in the accompanying figures), the movement, etc., if the specific attitude changes, the directionality indicator also changes accordingly.

[0026] Further, in the pres...

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Abstract

The invention discloses an axial magnetic field hybrid excitation brushless motor which comprises a shell, a rotating shaft, an alternating current exciter, a stator disc, a first rotor disc and a second rotor disc, the rotating shaft penetrates through the shell, the stator disc, the first rotor disc and the second rotor disc are all arranged on the rotating shaft in a sleeving mode, and the stator disc is located between the first rotor disc and the second rotor disc. The alternating-current exciter comprises an alternating-current excitation stator and an alternating-current excitation rotor, the alternating-current excitation stator is fixed to the inner wall face of the shell, the alternating-current excitation rotor is installed on the side face, facing the inner wall face of the shell, of the first stator disc or the second stator disc, and the alternating-current excitation stator and the alternating-current excitation rotor are oppositely arranged. And one of the first rotor disc and the second rotor disc is provided with a permanent magnet, and the other one is provided with an alternating current excitation rotor. The motor disclosed by the invention has the advantages that the magnetic field of the electrically excited synchronous motor is easy to adjust and the efficiency of the permanent magnet synchronous motor is high.

Description

Technical field [0001] The present invention relates to the field of motors, in particular to an axial magnetic field hybrid excitation brushless motor. Background [0002] Permanent magnet synchronous motor has simple structure and reliable operation; The significant advantages of small size, low loss and high efficiency have been widely used. However, permanent magnet motors also have the problem that the air gap magnetic field is difficult to adjust. When the motor is required to operate over a wide speed range, a continuous straight shaft current is applied to weaken the magnetic field. This not only reduces the efficiency of the system, but also can lead to irreversible demagnetization of permanent magnets. Contents of the Invention [0003] A major object of the present invention is to provide an axial magnetic field hybrid excitation brushless motor, intended to solve the above problems. [0004] To achieve the above object, the present invention proposes an axial magneti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K21/24H02K21/04H02K16/02
CPCH02K21/24H02K21/042H02K16/02Y02T10/64
Inventor 肖中选黄志刚李涛
Owner XIANGTAN HENGCHUANG ELECTRONICS DEVICES
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