Carbon commutator and manufacturing method thereof

A technology of carbon commutator and manufacturing method, which is applied in the field of carbon commutator and its manufacturing, can solve the problem of detachment of carbon basic body and commutator piece, and achieve high connection structure strength, long service life and good connection firmness Effect

Pending Publication Date: 2018-06-05
扬州华昌汽车电器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to provide a carbon commutator and its manufac...

Method used

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  • Carbon commutator and manufacturing method thereof
  • Carbon commutator and manufacturing method thereof

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Experimental program
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Effect test

Embodiment 1

[0030] The carbon commutator includes a copper bracket, an insulating base and a carbon plate. One surface of the copper bracket and the carbon plate are brazed and connected by solder paste in a vacuum state. The other surface of the copper bracket is provided with an insulating base. The copper There is a longitudinal protrusion at the connection between the bracket and the insulating base, the longitudinal protrusion of the copper bracket is implanted inside the insulating base, and the connection between the copper bracket and the carbon plate is provided with a horizontal protrusion, and the horizontal protrusion is embedded inside the carbon plate , the central hole of the insulating base is on the same vertical line as the central hole of the copper bracket and the carbon plate.

[0031] In the present invention, the insulating base is provided with a raised circular pedestal, and the circular pedestal is provided with an inner annular step.

[0032] In the present inve...

Embodiment 2

[0042] The carbon commutator includes a copper bracket, an insulating base and a carbon plate. One surface of the copper bracket and the carbon plate are brazed and connected by solder paste in a vacuum state. The other surface of the copper bracket is provided with an insulating base. The copper There is a longitudinal protrusion at the connection between the bracket and the insulating base, the longitudinal protrusion of the copper bracket is implanted inside the insulating base, and the connection between the copper bracket and the carbon plate is provided with a horizontal protrusion, and the horizontal protrusion is embedded inside the carbon plate , the central hole of the insulating base is on the same vertical line as the central hole of the copper bracket and the carbon plate.

[0043] In the present invention, the insulating base is provided with a raised circular pedestal, and the circular pedestal is provided with an inner annular step.

[0044] In the present inve...

Embodiment 3

[0054] The carbon commutator includes a copper bracket, an insulating base and a carbon plate. One surface of the copper bracket and the carbon plate are brazed and connected by solder paste in a vacuum state. The other surface of the copper bracket is provided with an insulating base. The copper There is a longitudinal protrusion at the connection between the bracket and the insulating base, the longitudinal protrusion of the copper bracket is implanted inside the insulating base, and the connection between the copper bracket and the carbon plate is provided with a horizontal protrusion, and the horizontal protrusion is embedded inside the carbon plate , the central hole of the insulating base is on the same vertical line as the central hole of the copper bracket and the carbon plate.

[0055] In the present invention, the insulating base is provided with a raised circular pedestal, and the circular pedestal is provided with an inner annular step.

[0056] In the present inve...

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Abstract

The invention discloses a carbon commutator. The carbon commutator comprises copper brackets, an insulating pedestal and carbon sheet plates, wherein one surfaces of the copper brackets and the carbonsheet plates are in brazing connection under vacuum by using a solder paste; the insulating pedestal is arranged on the other surfaces of the copper brackets; longitudinal bulges arranged at junctions of the copper brackets and the insulating pedestal are implanted into the insulating pedestal; transverse bulges arranged at junctions of the copper brackets and the carbon sheet plates are embeddedinto the carbon sheet plates. The carbon commutator disclosed by the invention is high in strength of an overall connecting structure, good in firmness of connection between a carbon basic body and acommutator piece and long in service life. The invention further discloses a manufacturing method of the carbon commutator. The solder paste for bonding the copper brackets and the carbon sheet plates comprises multiple metal elements such as nickel, chromium, iron, silicon, boron and scandium, and a junction of the commutator piece and the carbon sheet plate of the carbon commutator prepared from the solder paste is a metal layer, so that bonding is tight and firm and the reliability is high.

Description

technical field [0001] The invention relates to a carbon commutator, in particular to a carbon commutator and a manufacturing method thereof. Background technique [0002] The carbon commutator is one of the components of the fuel-powered EFI system. (EFI fuel pump) is located in the fuel tank and mainly supplies power fuel. [0003] The traditional commutator is made of electrolytic copper. Due to the international reduction of emissions and the increase of vehicle combustion, ethanol media is added to the fuel to improve the combustion of the fuel. It is a fact that China will fully use ethanol gasoline in 2020. After ethanol is added to the fuel, the traditional copper commutator will not be able to meet the service life and design function requirements, so a carbon commutator is required. [0004] The carbon basic body of the carbon commutator has excellent chemical stability and is not easy to be corroded by alcohols; but the main problem of the current carbon commutat...

Claims

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Application Information

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IPC IPC(8): H01R39/04H01R43/06
CPCH01R39/045H01R43/06
Inventor 蒋建荣蒋建信李顺
Owner 扬州华昌汽车电器有限公司
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