Stator permanent magnet type field modulation motor

A permanent magnet type, stator technology, applied to the static parts of the magnetic circuit, the rotating parts of the magnetic circuit, the shape/style/structure of the magnetic circuit, etc., can solve the problems of low mechanical reliability of the rotor, poor heat dissipation of the permanent magnet, etc., and achieve Easy to modularize and offline, convenient mechanical assembly, and high mechanical reliability

Inactive Publication Date: 2015-11-18
CHINA UNIV OF PETROLEUM (EAST CHINA)
View PDF9 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Technical problem: In order to solve the problems of low mechanical reliability of the rotor and poor heat dissipation of the permanent magnet in the existing field modulation permanen

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
  • Stator permanent magnet type field modulation motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The invention provides a stator permanent magnet type field modulation motor, the motor includes a coaxial casing 1, a stator 2, an air gap 3, a rotor 4 and a rotating shaft 5 arranged from outside to inside, and the stator 2 is fixed on the casing through a dovetail groove 1, an air gap 3 is provided between the stator 2 and the rotor 4, and the rotor 4 is fixed on the outside of the rotating shaft 5; Permanent magnets 22, stator teeth 23 protruding from the inner circumference of the stator core 21, multi-phase symmetrical armature windings 24 embedded between adjacent stator teeth 23; the rotor 4 includes an annular rotor core 41 coaxial with the stator 2 , a number of salient rotor poles 42 protruding from the periphery of the rotor core 41; the housing 1 is a non-magnetic ring-shaped part for fixing the stator 2; the number N of the stator teeth 23 s , the pole pair number p of the armature winding 24 w , the number N of rotor salient poles 42 r Satisfy the follo...

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 stator permanent magnet type field modulation motor. The motor comprises a housing, a stator, an air gap, a rotor and a rotating shaft from outside to inside. The housing, the stator, the air gap, the rotor and the rotating shaft are coaxially arranged. The stator is fixed in the housing through a dovetail groove. The air gap is arranged between the stator and the rotor. The rotor is fixed outside the rotating shaft. The stator comprises a plurality of stator iron cores which are arranged at equal intervals along the circumference, stator permanent magnets embedded between adjacent stator iron cores, stator teeth extending out of the inner circumferences of the stator iron cores, and multiphase symmetric armature windings embedded between adjacent stator teeth. The rotor comprises an annular rotor iron core, and a plurality of rotor salient poles extending out of the outer peripheries of the rotor iron cores. According to the invention, the armature windings and the permanent magnets are arranged on the stator side; the air-gap magnetic permeance change caused by the rotor salient pole is utilized to modulate the stator magnetic field, so as to achieve electromechanical energy conversion; and the stator permanent magnet type field modulation motor is characterized in that the rotor structure is simple, the mechanical reliability is high, the heat radiation of the permanent magnets is easy, and the processing and manufacturing is convenient.

Description

technical field [0001] The invention relates to a motor, in particular to a field-modulated permanent magnet motor in which armature windings and permanent magnets are placed on the stator side. Background technique [0002] At present, the types of permanent magnet motors that have been studied mainly include: ordinary permanent magnet synchronous motors, doubly salient permanent magnet motors, flux switching permanent magnet motors, flux inversion permanent magnet motors, transverse flux permanent magnet motors, axial Flux permanent magnet motor, magnetic gear compound permanent magnet motor, etc. Although the topological structures of the above-mentioned types of permanent magnet motors are quite different, their basic working principles are the same, that is, they all use the air gap fundamental magnetic field to realize electromechanical energy conversion. In contrast, the field-modulated permanent magnet motors that have appeared in recent years, based on the magnetic...

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): H02K1/14H02K1/16H02K1/17H02K1/24
Inventor 李祥林王玉彬
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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