Stator permanent magnet type cursor motor structure for reducing positioning force

A vernier motor, permanent magnet technology, applied in the magnetic circuit shape/style/structure, magnetic circuit static parts and other directions, can solve the problems of reduced positioning force, large positioning force, etc., to achieve high power density and increase manufacturing costs , the effect of improving power density

Active Publication Date: 2014-01-01
JIANGSU UNIV
View PDF5 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of large positioning force in the existing magnetism-concentrating stator permanent magnet vernier motor, and propose a stator permanent magnet vernie

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 cursor motor structure for reducing positioning force
  • Stator permanent magnet type cursor motor structure for reducing positioning force
  • Stator permanent magnet type cursor motor structure for reducing positioning force

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0019] See figure 1 , The stator permanent magnet vernier motor structure with reduced positioning force of the present invention includes two parts: primary 1 and secondary 2. There is an air gap between primary 1 and secondary 2. The thickness of the air gap is selected according to the size and requirements of the motor . The secondary 2 is composed of a trapezoidal slot formed by slotting the iron core. The primary 1 is slotted to form a cogging structure. The slot 14 is between two adjacent teeth on the primary 1. The slot 14 is used to place the windings. The windings are concentrated or distributed. The winding and slot 14 can adopt various slot types, which are selected according to specific needs.

[0020] See figure 1 with figure 2 One tooth of the secondary 1 includes a tooth 21 and a yoke 22, and the tooth 21 has a trapezoidal shape facing the air gap side. Width of tooth 21 near the air gap side S 1 And pitch T p Ratio K 1 =S 1 / T p , K 1 Is 0.1~0.5, K 1 The best ...

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 cursor motor structure for reducing positioning force. The structure comprises a primary portion and a secondary portion, wherein an air gap is formed between the primary portion and the secondary portion, a plurality of virtual slots and a plurality of virtual teeth are arranged at the tooth end of each tooth of the primary portion in the moving direction of a motor, the number of the virtual teeth is N1, the number of the virtual slots is N2, the relation of N1 and N2 is N1=N2+1, and the N2 is an odd number larger than 1; a fourth permanent magnet is embedded in the virtual slot right in the middle, and magnetism gathering modules are embedded in the other virtual slots; the magnetizing direction of the fourth permanent magnet is perpendicular to the moving direction of the motor and is towards the air gap; each magnetism gathering module is formed by sequentially and tightly attaching three permanent magnets, wherein the magnetizing direction of the middle permanent magnet is perpendicular to the moving direction of the motor and is towards the air gap, the two permanent magnets on the two sides are relatively magnetized, and the magnetizing direction is the same as the moving direction of the motor; due to the matching of the permanent magnets and the magnetism gathering modules, the positioning force can be reduced, and meanwhile performance indexes such as no-load counter electromotive force, thrust output and the dosage of the permanent magnets are not affected.

Description

technical field [0001] The invention relates to a motor manufacturing technology and a primary permanent magnet motor positioning force technology, in particular to a stator permanent magnet vernier motor structure. Background technique [0002] The vernier motor has the characteristics of low speed and high torque, so it has good application scenarios in many occasions such as rail transit, ship propulsion, food processing and electric vehicles. At present, the permanent magnet vernier motor is mostly researched on the rotor permanent magnet motor, and the permanent magnet is placed on the rotor. During the operation of the motor, it will cause heat dissipation difficulties, and excessive temperature rise will cause permanent magnet loss. magnetism, causing the motor to malfunction. Stator permanent magnet motors place both permanent magnets and armature windings on the stator, and the rotor has no windings or permanent magnets. The structure is simple. The temperature ris...

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): H02K1/17H02K1/16H02K1/14
Inventor 吉敬华赵建兴赵文祥康梅
Owner JIANGSU UNIV
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