Modularized permanent magnet motor

A permanent magnet motor, modular technology, applied in the direction of magnetic circuit, electric components, electrical components, etc., can solve the problem of affecting the output electromagnetic performance of the motor, increase the torque ripple of the motor, etc., to save permanent magnet materials, improve torque and Effects of power density, ease of transport and assembly

Active Publication Date: 2020-06-19
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS +1
View PDF4 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the above-mentioned patents and documents, permanent magnets are alternately arranged to overcome the defects of traditional surface-mounted permanent magnet motors, saving the use of permanent magnet materials and protective sleeves. In the phase winding of the alternating pole motor, even-order harmonics of the back EMF will be induced, thereby increasing the torque ripple of the motor and affecting the output electromagnetic performance of the motor

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
  • Modularized permanent magnet motor
  • Modularized permanent magnet motor
  • Modularized permanent magnet motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0023] Such as figure 1 As shown, it is a permanent magnet motor structure in the prior art. The permanent magnet motor is a traditional wheel hub motor, including a stator core 3' with evenly distributed stator teeth and an alternating pole rotor core 1'. All permanent magnets 2' are filled with The magnetic directions are the same, that is, they all point to the outside of the rotor or the stator side. The modular stator core 3' includes a plurality of stator module units 31', and each stator module unit 31' includes three stator tooth blocks 311', and each stator module The three stator tooth blocks 311' on the unit 31' are all wound with A+, B+, C+ winding coils 4' in the counterclockwise direction (that is, the winding coils 4' on all modular stator cores are wound in the positive direction) , so that each modular stator forms a phase se...

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 modular permanent magnet hub motor. The motor comprises a rotor and a stator. The motor is characterized in that the rotor comprises a rotor iron core and a permanent magnet;the stator comprises a stator core composed of at least two or more modular stator units; a magnetic bridge is formed between the adjacent modular stator units; the winding directions of armature windings on the adjacent modular stator units are opposite, and the armature windings belonging to the same phase have a 180-degree electrical angle difference in space. The modular permanent magnet hubmotor has the advantages that the magnetic bridge is arranged and the arrangement mode of the armature windings is improved to eliminate counter potential even harmonics of the armature windings, so that the output torque performance of the motor is improved; and auxiliary windings are arranged by utilizing a large-groove structure generated by the magnetic bridge, so that the torque and the powerdensity of the motor are further improved.

Description

technical field [0001] The invention relates to a permanent magnet motor structure, in particular to a modular permanent magnet motor. Background technique [0002] Due to the use of rare earth permanent magnet materials, permanent magnet motors have the advantages of high torque density, high power density and high efficiency, and are especially suitable for transmission systems such as new energy vehicles and wind power generation. The permanent magnet hub motor adopts the structure of the outer rotor and the inner stator. It is widely used in the automobile distributed drive system because the intermediate mechanical transmission system is omitted. However, the permanent magnets of this type of outer rotor permanent magnet hub motor are generally placed on the outer rotor. In general, the permanent magnet needs to be pasted around the inside of the outer rotor, and the amount of permanent magnet is large, which makes the cost of the motor higher. [0003] In order to red...

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 Applications(China)
IPC IPC(8): H02K1/14H02K3/18H02K3/28H02K1/24H02K1/27
CPCH02K1/148H02K1/24H02K1/2786H02K3/18H02K3/28H02K2213/03H02K2213/12
Inventor 王凯李烽孙海阳
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