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Carbon brush structure

A technology of carbon brushes and carbon brush holders, applied in the direction of current collectors, electrical components, rotating current collectors, etc., can solve the problems of complex manufacturing process and high cost of carbon brushes 6, reduce component costs, improve heat dissipation, and simplify production The effect of craft

Inactive Publication Date: 2008-01-23
LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

[0007] The conventional motor carbon brush 6 is composed of a carbon rod 12, a carbon brush holder 13, a carbon brush holder 14, and a spring 15. The carbon brush holder 13 and the carbon brush holder 14 are formed independently and then assembled. The material of the carbon brush holder 13 is copper material, therefore, the manufacturing process of the carbon brush 6 is complicated and the cost is high

Method used

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Embodiment Construction

[0023] In order to further understand the content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

[0024] Hereinafter, parts that are the same as those in the past are described using the same symbols.

[0025] The single-phase motor includes a stator 2 fixed on the inner side of the casing 1 with an open inner space; the inner side of the stator 2 is provided with a rotor 3 that can rotate at a certain distance from the inner peripheral surface of the stator 2; A rotating shaft 4 is inserted in the center; bearings 11 are arranged on both ends of the rotating shaft 4, and the bearings are fixed by the casing 1 and the guide blades 8, so that the rotating shaft 4 rotates.

[0026] On the upper side of the rotor 3, there is a commutation rectifier 5 that converts the supplied AC current into DC current; on both sides of the commutation rectifier 5, t...

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Abstract

The present invention belongs to a carbon brush structure for a motor commutator rectifier, which comprises a carbon rod elastically connected with the commutator rectifier, a carbon rod stand to hold the carbon rod, a carbon brush holder fixed on a motor shell, a spring at a closed end of the carbon rod stand and a carbon rod support structure integrating the carbon rod stand and the carbon brush holder. The carbon rod stand and the carbon brush holder are made from the same hard plastic and plasticized into a whole, thus reducing cost, simplifying production technique and improving carbon brush heat radiation through a plurality of radiating grooves formed on a carbon brush support structure.

Description

technical field [0001] The invention belongs to the commutation rectifier technology in the motor, and in particular relates to a carbon brush structure arranged on both sides of the commutation rectifier, and a carbon rod frame and a carbon brush seat integrally formed. Background technique [0002] Generally speaking, in order to continuously rotate in the motor, a commutation rectifier is used. The function of the commutation rectifier is to convert the received current in sequence, so that the rotor can rotate in a certain direction at any position. [0003] A conventional single-phase motor will be described as shown in Fig. 1 and Fig. 2 . [0004] Fig. 1 is a partial sectional view of a conventional single-phase motor, and Fig. 2 is an exploded view of the single-phase motor shown in Fig. The stator 2 is fixed inside; the inside of the stator 2 is provided with a rotor 3 that maintains a certain distance from the inner peripheral surface of the stator 2 and can rotate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R39/38H01R39/40
Inventor 高明山
Owner LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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