Doubly-salient permanent magnet motor structure

A technology of permanent magnet motor and doubly salient pole, applied in the direction of magnetic circuit shape/style/structure, magnetic circuit static parts, magnetic circuit characterized by magnetic materials, etc., can solve the problems of limited development of permanent magnets, and achieve structural Simple, improve motor efficiency, and prevent demagnetization

Inactive Publication Date: 2016-08-31
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
View PDF3 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the unique demagnetization problem of p

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Doubly-salient permanent magnet motor structure
  • Doubly-salient permanent magnet motor structure
  • Doubly-salient permanent magnet motor structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0024] Such as figure 1 As shown, a double salient pole permanent magnet motor structure of the present invention includes a stator 1, a rotor 5, a permanent magnet 2, an insulating material 3, and a DC field winding 4, and both the stator and the rotor have a salient pole alveolar structure, The stator is composed of an even number of A-shaped iron cores evenly arranged on the outer circumference of the rotor, and an insulating material is filled between every two adjacent A-shaped iron cores, and the A-shaped iron core includes two opposite salient poles Two oppositely arranged salient pole teeth are connected by an iron core beam, and a DC excitation winding is embedded on the iron core beam, and a permanent magnet is embedded between the salient teeth of the two oppositely arranged salient pole teeth. The stator of the motor is composed of 6 A...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a doubly-salient permanent magnet motor structure. The doubly-salient permanent magnet motor structure comprises a stator. The stator is composed of an even number of A-type iron cores arranged uniformly on the periphery of a rotor. A magnetic insulating material is filled between each two adjacent A-type iron cores. Each A-type iron core comprises two opposite salient pool teeth. The two opposite salient pool teeth are connected through an iron core cross beam. A direct current excitation winding is embedded on the iron core cross beam. A permanent magnet is embedded between protruding teeth of the two opposite salient pool teeth. Salient pool tooth groove structures of the stator and the rotor are provided, and the rotor has no winding and permanent magnet, so that the doubly-salient permanent magnet motor structure has the advantages of a doubly-salient motor that the structure is simple and the operation is reliable; in addition, the stator is individually composed of a plurality of independent A-type iron cores, so that the material waste and the manufacturing cost are reduced to the maximum extent.

Description

technical field [0001] The invention relates to a motor structure, in particular to a double salient pole permanent magnet motor structure, which belongs to the field of motor body design. Background technique [0002] The motor is an indispensable power component in an industrialized society. The double-salient pole motor is a new type of special motor developed in recent years. Its stator and rotor are salient-pole cogging structures, and the stator armature winding is a centralized winding. There is no winding on the rotor, the structure is simple, the operation is reliable, and it is suitable for high-speed operation and harsh working environment. Hence various applications such as aerospace, automotive industry and wind power generation etc. In recent years, due to the wide range of rotor speed adjustment, high torque density and simple structure, the advantages of doubly salient permanent magnet motors have become increasingly prominent. In traditional permanent magn...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H02K1/14H02K1/17H02K1/02H02K1/04
CPCY02P80/30H02K1/14H02K1/02H02K1/04H02K1/17
Inventor 侯丽钢孟小利周倩云杜幼芝丁立伟
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap