Supercharge Your Innovation With Domain-Expert AI Agents!

Brushless motor and rotor thereof

A brushless motor and rotor technology, applied in electrical components, electromechanical devices, electric components, etc., can solve the problems of back EMF difference, high manufacturing cost, inability to meet FOC drive requirements, etc., to improve electromagnetic noise, reduce motor costs, The effect of improving motor performance

Pending Publication Date: 2022-03-11
SHENZHEN TOPBAND CO LTD
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The magnetic steel of the rotor of the brushless motor in the related art generally only has a radial magnetic field or a tangential magnetic field, and its magnetic field distribution can be referred to figure 1 and figure 2 , and the end magnetic field distribution when there is only radial magnetic field can be referred to image 3 , under normal circumstances, the brushless motor generally has electromagnetic noise, and the back electromotive force is poor, which cannot meet the requirements of FOC driving, and the manufacturing cost is high

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
  • Brushless motor and rotor thereof
  • Brushless motor and rotor thereof
  • Brushless motor and rotor thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.

[0039] Figure 4 Some preferred embodiments of the brushless motor of the present invention are shown. The brushless motor has the advantages of low noise, good performance and light weight.

[0040] Such as Figure 4 As shown, in some embodiments, the brushless motor may include a rotor and a stator assembled with the rotor. The rotor may include a rotor core 10 , a first magnet 20 , and a second magnet 30 . The rotor core 10 can be cylindrical, and there are multiple first magnets 20, and the multiple first magnets 20 can be arranged at intervals along the circumference of the rotor core 10, and each first magnet 20 can be A first magnetic field is generated in the radial direction of the rotor core 10 . The seco...

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 a brushless motor and a rotor thereof. The brushless motor rotor comprises a rotor core, a plurality of first magnetic steels for generating a first magnetic field in the radial direction of the rotor core, and a plurality of second magnetic steels for generating a second magnetic field in the tangential direction of the rotor core, and the plurality of first magnetic steels and the plurality of second magnetic steels are alternately arranged one by one in the circumferential direction of the rotor iron core, so that the first magnetic field and the second magnetic field are mixed to form a mixed magnetic field. The rotor can improve the electromagnetic noise of the motor, provide counter electromotive force with better sine degree, meet the requirement of FOC driving, reduce the cost of the motor, improve the performance of the motor and reduce the weight of the motor.

Description

technical field [0001] The present invention relates to motors, more specifically, to a brushless motor and its rotor. Background technique [0002] The magnetic steel of the rotor of the brushless motor in the related art generally only has a radial magnetic field or a tangential magnetic field, and its magnetic field distribution can be referred to figure 1 and figure 2 , and the end magnetic field distribution when there is only radial magnetic field can be referred to image 3 , under normal circumstances, the brushless motor generally has electromagnetic noise and poor counter electromotive force, which cannot meet the requirements of FOC driving, and the manufacturing cost is high. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an improved brushless motor and its rotor. [0004] The technical solution adopted by the present invention to solve the technical problem is to construct a brushless motor roto...

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): H02K1/2791
CPCH02K1/2786
Inventor 王兴伟
Owner SHENZHEN TOPBAND CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com