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Low-noise motor and electric brush combination

A composite, low-noise technology, applied in circuits, current collectors, electrical components, etc., can solve the problems of affecting current size, carbon brush wear, affecting starting torque and rotation speed, etc., to improve strength, life, and compression resistance. Wear-resistant effect

Inactive Publication Date: 2014-08-06
TAIZHOU HAOZE CARBON PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in addition to the problem of wear and tear, the carbon brush is also a conductor, and any modification to it will affect the current, thereby affecting the starting torque and speed

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0017] The present invention will be further described below with specific embodiment:

[0018] A low-noise motor brush composition, the composition includes the following material composition by weight percentage: 50-90% of colloidal graphite powder, 5-50% of electrolytic copper powder, 2-4% of molybdenum disulfide, Tin powder 1-5%. Colloidal graphite powder is composed of the following substances: graphite powder 70-90%; solid phenolic resin 10-30%.

[0019] As long as the values ​​are taken within the content range of the above-mentioned substances, the technical effects described in the present invention can be achieved.

[0020] The preferred value range of the present invention is: above-mentioned composition comprises the material composition of following percentage by weight: colloidal graphite powder 65-75%, electrolytic copper powder 28-33%, molybdenum disulfide 3-4%, tin powder 2% -4%. Colloidal graphite powder composition: graphite powder 70-90%, solid phenolic ...

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Abstract

The invention belongs to the technical field of electric brushes or carbon brushes for motors, and relates to a low-noise motor and electric brush combination. The low-noise motor and electric brush combination comprises, by weight, 50-90% of colloidal graphite powder, 5-50% of electrolytic copper powder, 2-4% of molybdenum disulfide and 1-5% of tin powder. The colloidal graphite powder comprises 70-90% of graphite powder and 10-30% of solid phenolic resin. The low-noise motor and electric brush combination has the advantages that the phenolic resin is used as a binder, so that the strength of a carbon brush can be improved; an electric brush can be effectively lubricated by the aid of the molybdenum disulfide, properties such as pressure resistance, abrasion resistance, high-temperature resistance and chemical corrosion resistance of the electric brush can be improved, and multiple effects can be realized by the aid of the molybdenum sulfide; the conductivity and the lubrication property of the electric brush can be improved by the tin powder, and double effects can be realized by the aid of the tin powder; the graphite powder, the tin powder and the electrolyte copper powder are high in purity and are applicable to manufacturing electric brushes for fan heaters of automobiles or similar motors.

Description

technical field [0001] The invention belongs to the technical field of brushes or carbon brushes for motors, in particular to a low-noise motor brush composition. Background technique [0002] The automobile industry has become a pillar industry of our country. The technical level of the entire automobile industry is constantly improving, and all parts are moving towards the direction of the same life as the automobile. As the main wearing part of the motor, the life of the carbon brush determines the life of the motor. In order to achieve the goal of the same service life, the domestic carbon brush industry is making its own efforts in different directions. However, in addition to the problem of wear and tear, the carbon brush is also a conductor, and any modification to it will affect the magnitude of the current, thereby affecting the starting torque and speed. The two aspects often restrict each other, and with the development of my country's automobile industry, the r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R39/22
Inventor 肖发国
Owner TAIZHOU HAOZE CARBON PROD
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