Hook-type commutator capable of preventing insulating paint from falling off

The utility model discloses a hook-type commutator capable of preventing insulating paint from falling off. The commutator comprises a bakelite powder matrix and commutator copper sheets which are circumferentially arranged on the excircle of the bakelite powder matrix, wherein the tops of the commu...

Full description

Saved in:
Bibliographic Details
Main Authors CHEN WEIWEI, CHEN HUI, YU HONGQUAN, ZHENG DAOWU
Format Patent
LanguageChinese
English
Published 16.06.2020
Subjects
BASIC ELECTRIC ELEMENTS
CURRENT COLLECTORS
ELECTRICITY
LINE CONNECTORS
Online AccessGet full text

Cover

More Information
Summary:The utility model discloses a hook-type commutator capable of preventing insulating paint from falling off. The commutator comprises a bakelite powder matrix and commutator copper sheets which are circumferentially arranged on the excircle of the bakelite powder matrix, wherein the tops of the commutation copper sheets are provided with bonding wire hooks, the adjacent commutation copper sheets are subjected to inter-sheet insulation through insulation grooves, and the commutator is characterized in that the top end surface of the bakelite powder substrate is provided with an upward conical bulge, and the surface of the conical bulge is provided with a concave-convex rough surface with the roughness of not less than Ra12.5. According to the utility model, insulating paint can be thinned and firmly frozen on the end surface of the top of the commutator after the commutator is subjected to wire welding and paint dripping insulation treatment, so that the technical problem that the insulating paint falls off whe
Bibliography:Application Number: CN201922198833U