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

A magnetic circuit structure of a double-V permanent magnet hub motor

A technology of in-wheel motor and permanent magnet is applied in the field of magnetic circuit structure of double-V-type permanent magnet in-wheel motor, which can solve the problems of less research and application, and achieve the effect of strengthening heat dissipation effect, small magnetic leakage coefficient and reducing core loss.

Inactive Publication Date: 2020-08-25
HARBIN UNIV OF SCI & TECH
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Permanent magnet drive motors with magnetic steel embedded structures mostly appear on conventional inner rotor motors, and there are few researches and applications on hub motors with outer rotor structures

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
  • A magnetic circuit structure of a double-V permanent magnet hub motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Such as figure 1 As shown, this embodiment provides a double V-shaped permanent magnet hub motor magnetic circuit structure, including a stator 1, a rotor 2, a rotor shaft 3, a winding slot 5 and a permanent magnet 7; the rotor 2 is arranged inside the stator 1 And the rotor 2 is arranged coaxially with the stator 1, the rotor shaft 3 is arranged at the center of the rotor 2, the winding slot 5 is arranged on the inner wall of the stator 1, and the permanent magnet 7 set on the rotor 2.

[0016] In this specific embodiment, the outer wall of the rotor 2 is provided with a plurality of rotor teeth. Four permanent magnets 7 are arranged on each rotor tooth, and the permanent magnets on each rotor tooth are distributed in an X shape. It also includes a magnetic isolation bridge 4, and the magnetic isolation bridge 4 is arranged at the root of the rotor teeth. Six ventilation holes 6 are uniformly arranged on the rotor 2 along the circumferential direction.

[0017] The...

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 double V-type permanent magnet hub motor magnetic circuit structure and relates to the technical field of motor structure. The double V-type permanent magnet hub motor magnetic circuit structure comprises a stator, a rotor, a rotor shaft, a permanent magnet, a magnetic isolation bridge, a winding slot and a ventilation hole. The permanent magnet hub motor has good runningcharacteristics. The rotor is an embedded radial rotor and has a low magnetic flux leakage coefficient. No magnetic isolation measures are required on a rotating shaft. A pole-arc coefficient is easyto control. Rotor punching pieces have high mechanical strength. The ventilation hole reduces the magnetic flux at the alignment position. The magnetic circuit structure has low noise performance, reduces the core loss of the rotor, and enhances a heat dissipation effect.

Description

technical field [0001] The invention relates to the technical field of motor structure, in particular to a magnetic circuit structure of a double V-shaped permanent magnet hub motor. Background technique [0002] Permanent magnet in-wheel motors have the advantages of high energy conversion efficiency, good field-weakening speed regulation performance, strong torque output capability and high reliability, and have developed rapidly in the field of new energy vehicles. Permanent magnet drive motors with magnetic steel embedded structures mostly appear on conventional inner rotor motors, and there are less researches and applications on hub motors with outer rotor structures. At present, electric vehicle drive motors are developing in the direction of high power and high torque. The cross-sectional area of ​​the magnetic poles in the embedded V-shaped magnetic circuit structure is much larger than the surface area of ​​the air, which can generate a higher air magnetic flux den...

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): H02K21/14H02K1/16H02K1/27H02K1/32
Inventor 陶大军代旭许传一戈宝军王立坤潘博
Owner HARBIN UNIV OF SCI & TECH
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