hook commutator

A commutator and hook-type technology, which is applied in the direction of current collectors, rotating current collectors, electrical components, etc., can solve problems such as difficult discharge, commutator short circuit, weak hook top strength of welding wire, etc.
CN107994434BActive Publication Date: 2021-09-10瑞安博宇科技股份有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
瑞安博宇科技股份有限公司
Publication Date
2021-09-10

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Abstract

The invention discloses a hook-type commutator, which includes a base body and commutation segments uniformly arranged on the outer circumference of the base body, insulating grooves are provided between adjacent commutation segments for insulation, and welding wire hooks are arranged on the top of the commutation segments , characterized in that: the inner side of the insulating groove is provided with an axial through groove, the axial through groove is arranged in the same direction as the insulating groove and runs through the upper and lower end faces of the base body, the upper end face of the base body has a slope, and a guide groove is opened on the slope to guide The upper end of the flow groove is open, and the lower end of the flow guide groove communicates with the axial through groove. The invention can completely solve the problems of carbon deposition and virtual welding in the commutator, thereby eliminating the two most important factors of motor damage, greatly improving and effectively ensuring the service life of the motor, and low production cost.
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Description

technical field

[0001] The present invention relates to a hook type commutator. Background technique

[0002] There are two main factors for the damage of the motor under normal conditions. One is the carbon deposition in the insulation groove of the commutator, which leads to the damage of the motor caused by the short circuit of the commutator; the other is the welding hook of the commutator and the enameled wire of the motor rotor coil. There is a virtual weld between them after spot welding, resulting in motor damage caused by an open circuit. The fundamental reason is that there are certain deficiencies in the structure of the commutator.

[0003] The hook-type commutator of the prior art includes a base body and commutator segments uniformly arranged on the outer circumference of the base body, insulation grooves are provided between adjacent commutator segments, and welding wires are provided on the top of the commutator segments hook. Since the width of the insula...

Claims

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