Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

An Axial Field Stator Yokeless Flux Inversion Permanent Magnet Motor

A magnetic field stator and permanent magnet motor technology, applied in synchronous machines, electromechanical devices, electrical components, etc., can solve the problems of large magnetic flux leakage and large torque ripple of permanent magnets, achieve high torque density and reduce motor magnetic flux leakage , The effect of lightweight permanent magnet utilization

Active Publication Date: 2021-10-15
SOUTHEAST UNIV
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this motor also has many disadvantages, such as large flux leakage of permanent magnets, large torque ripple, etc.

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
  • An Axial Field Stator Yokeless Flux Inversion Permanent Magnet Motor
  • An Axial Field Stator Yokeless Flux Inversion Permanent Magnet Motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0024] An axial field stator yokeless flux-inverted permanent magnet motor structure, such as figure 1 and 2 As shown, it includes two symmetrically arranged rotors 1 and a stator 2 placed in the middle of the two rotors 1, forming a sandwich structure. Both the rotor 1 and the stator 2 are annular structures and the rotor 1 and the stator 2 are connected coaxially to form a two-layer plane. air gap.

[0025] The rotor 1 includes a rotating shaft and a rotor core...

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 relates to the field of motor design. Specifically, it is an axial magnetic field stator yokeless flux reverse permanent magnet motor, which includes two symmetrically arranged rotors and a stator placed between the two rotors. Both the rotor and the stator are annular structures. The rotor and stator are coaxially connected to form a two-layer plane air gap. The rotor includes a rotating shaft and a rotor core with circumferential grooves on the side wall. The stator includes a first stator core, a second stator core, and an armature winding. The first stator core and the second stator core are arranged alternately and equidistantly in the circumferential direction. , there are stator grooves at the center of the tooth crowns on both sides of the first stator core, the first permanent magnets are embedded in the stator grooves, and the second permanent magnets are attached to the surfaces of both axial sides of the second stator core. The invention adopts a double-rotor single-stator stator yoke-free structure, supplemented by special structures of large and small stator cores, which reduces the motor magnetic leakage and improves the motor torque characteristics, so that the motor has high torque density, lightweight and high efficiency. Characteristics of permanent magnet utilization.

Description

technical field [0001] The invention relates to the field of motor design, in particular to an axial magnetic field stator yokeless flux reversal permanent magnet motor. Background technique [0002] Stator permanent magnet motors place permanent magnets in the stator, and the rotor structure is similar to switched reluctance motors. It has the characteristics of simple structure, strong robustness, and easy manufacturing. Moreover, the heat generated by the permanent magnet can be directly transmitted to the casing through the stator core, which is beneficial to the heat dissipation of the stator. Flux reversal permanent magnet (FRPM) motor is a kind of stator permanent magnet motor, and its structure is similar to the traditional rotor surface-mounted permanent magnet motor, and the permanent magnets are surface-mounted. However, this motor also has many disadvantages, such as large flux leakage of permanent magnets, large torque ripple and so on. Contents of the invent...

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
Patent Type & Authority Patents(China)
IPC IPC(8): H02K16/02H02K1/17H02K21/44
Inventor 林明耀贾伦林克曼乐伟屠逸翔
Owner SOUTHEAST UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com