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

Commutator

A technology of commutator and commutator segment, applied in the field of commutator

Inactive Publication Date: 2015-06-03
常州五王电机有限公司
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the above problems, the present invention provides a commutator. Because the commutator segment has a centrally symmetrical arch bridge structure, the contact area between the commutator segment and the molding compound is increased, and the surface of the bush is provided with lines to increase friction. The bond between the bush and the commutator is stronger, which not only effectively prevents the jumping and flying of the commutator piece, but also effectively prevents the commutator from cracking due to the self-propagation of the bush when the motor is running at high speed, thereby Enhanced commutator life

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
  • Commutator
  • Commutator
  • Commutator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] Such as Figure 1 to Figure 3 The commutator shown includes commutator segment 1, bushing 4, molding compound 2 and mica sheet 3. After preheating, molding compound 2 is quickly applied under high temperature and high pressure to make it flow into commutator segment 1 and bushing 4, after the molding compound 2 is cured, the commutator piece 1, the molding compound 2 and the bushing 4 are firmly combined, the mica piece 3 is arranged between the commutator piece 1, and the commutator piece 1 pin The part 5 has a centrally symmetrical arch bridge structure, that is, the foot part 5 of the commutator piece 1 has an arch bridge structure with its vertical and horizontal centerlines as axes, left and right, and up and down. The contact area with the molding compound 2 makes the contact strength between the two reliable, the adhesion is improved, and the phenomenon of flying and jumping of the commutator piece 1 is prevented. The commutator piece 1 is made of silver-copper a...

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 technical field of motors, in particular to a commutator. The commutator comprises commutator segments, a bushing, molded plastic and a mica sheet, wherein the commutator and the bushing are combined together through the molded plastic; the mica sheet is arranged between the commutator segments. The commutator is characterized in that a foot of each commutator segment is provided with an arc bridge-shaped structure which is in central symmetry; the commutator segments are made of silver-copper alloy materials; grains are arranged on the surface of the bushing; two dovetail parts are arranged on one long side of the mica sheet and are respectively close to two short sides. Due to the adoption of the scheme, the skipping and the flying of the commutator segments can be effectively prevented, and the rotation of the bushing is prevented, so that the quality of the commutator is improved, and the service life of the commutator is prolonged.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a commutator. Background technique [0002] The commutator is generally composed of commutator, mica, bushing and molding compound. Melted molding compound is added between the commutator and the bushing. After the molding compound is cured, the commutator, molding compound and bushing Combined together, when the motor is running at high speed, the commutator is prone to jumping and flying, which leads to an increase in the level of electric sparks, and the weak bond between the bush and the commutator causes the bush to self-propagate and the commutator to crack , thus affecting the quality of the commutator and reducing the service life of the commutator. Contents of the invention [0003] Aiming at the above problems, the present invention provides a commutator. Because the commutator segment has a centrally symmetrical arch bridge structure, the contact area between the com...

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): H01R39/04H01R39/14
CPCH01R39/04H01R39/14H01R2201/10
Inventor 严越峰
Owner 常州五王电机有限公司
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