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Axial magnetic flux hub motor

A hub motor and axial flux technology, which is applied in the direction of motors, magnetic circuits, electromechanical devices, etc., can solve the problems of increased equivalent air gap length of motors, increased use of permanent magnet materials, troublesome winding windings, etc., and achieves good results. Ventilation and cooling effect, convenient disassembly and maintenance, and the effect of reducing maintenance costs

Pending Publication Date: 2021-04-30
金宇星机电科技(浙江)有限公司
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

The hub motor with the above structure cancels the stator core, and the winding is potted and formed by potting glue, the magnetic permeability is poor, and the equivalent air gap length of the motor increases. Compared with the iron core motor under the same situation, the use of permanent magnet materials The volume will increase and the cost will be higher
[0004] However, in the existing axial flux hub motors with iron cores, the stator iron core and the positioning plate are usually integrally formed, and it is troublesome to wind the winding; and during maintenance, it is necessary to disassemble and replace the entire stator part, which is difficult to overhaul and maintain. High, high maintenance cost

Method used

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. Such as Figure 1-5 As shown, an axial flux hub motor includes a hub 1, a rotor 2, a stator 3 and a central shaft 4, and the central shaft 4 passes through the hub 1, the rotor 2 and the stator 3, and the stator 3 is connected to the The central shaft 4 is fixedly connected, and the rotor 2 and the hub 1 can rotate around the central shaft 4 . The rotor 2 includes several pieces of magnetic steel 21, the stator 3 includes a stator core 31 and a positioning plate 32, the stator core 31 is located on the positioning plate 32, and a winding 33 is wound on the stator core 31 . The stator core is made of common silicon steel sheets, and multiple silicon steel sheets are stacked to form the stator core. The lamination direction of the silicon steel sheets is perpendicular to the axial direction. The stator core has the advantages of good magnetic c...

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Abstract

The invention relates to an axial magnetic flux hub motor, which comprises a hub, a rotor, a stator and a central shaft. The central shaft penetrates through the hub, the rotor and the stator, the stator is fixedly connected with the central shaft, the rotor and the hub can rotate around the central shaft, the rotor comprises a plurality of pieces of magnetic steel, the stator comprises a positioning plate and a plurality of stator iron cores, the stator iron cores are located on the positioning plate, and windings are wound on the stator iron cores. The positioning plate is provided with an installation opening, and one end of the stator iron core is located in the installation opening. Compared with the prior art, a plurality of stator iron cores are arranged, so that the magnetic conductivity is better, and a good ventilation cooling effect is achieved; and the stator iron cores are independently arranged on the positioning plate, so that the disassembly and the maintenance are convenient, and the maintenance cost is reduced.

Description

technical field [0001] The invention relates to an axial magnetic flux hub motor, which belongs to the technical field of hub motors. Background technique [0002] The hub motor is the core component of the electric vehicle, and the working performance of the hub motor directly affects the performance of the electric vehicle. Most of the electric wheel hub motors adopt the traditional radial magnetic field outer rotor structure, which is difficult to meet the requirements of electric vehicles for cruising range. [0003] In response to the above problems, people have made various improvements, and some have applied for patents. For example, Chinese patent documents disclose a coreless axial flux hub motor [application number: 202010002588.X; application Publication number: CN111009996A], including the hub, rotor, stator and central shaft, the stator includes a stator bracket and a stator disc fixedly connected outside the stator bracket, and the stator disc is formed by pot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/12H02K1/18H02K1/27H02K7/00H02K11/215B60K7/00
CPCB60K7/0007H02K1/12H02K1/182H02K1/2793H02K7/006H02K11/215Y02T10/64
Inventor 王加许唐敏王健丁伟
Owner 金宇星机电科技(浙江)有限公司
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