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Plane carbon commutator and its manufacture method

A commutator and planar carbon technology, which is applied in the field of commutators, can solve the problems of the influence of the base strength of the insulating phenolic plastic, the high requirements for the cooperation between the carbon sheet and the copper skeleton, and the troublesome processing of the carbon sheet. High, simple structure, the effect of improving the service life

Inactive Publication Date: 2007-10-24
ZHEJIANG ANDI HIGH TECH DEVE
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although such a structure is simpler than the above structure and is easy to produce, the processing of the carbon sheet is more troublesome and requires high precision; the requirements for the cooperation between the carbon sheet and the copper skeleton are relatively high, and the position of the copper skeleton sinks more, cutting the sub-electrode groove When it is used, the corresponding will be deeper, which may affect the strength of the base of the insulating phenolic plastic, which can only be solved by thickening the base of the insulating phenolic plastic

Method used

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  • Plane carbon commutator and its manufacture method
  • Plane carbon commutator and its manufacture method
  • Plane carbon commutator and its manufacture method

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Embodiment Construction

[0053] In order to better describe the present invention, the present invention will be illustrated below in conjunction with the accompanying drawings.

[0054] As shown in Figure 10, the planar carbon commutator comprises an insulating plastic carrier 1, the insulating plastic carrier 1 has a commutation shaft 11, the insulating plastic carrier 1 has an extended end 12 extending at least partly laterally, and eight Recess 13 on the end 12; eight copper conductor parts 2 arranged around the reversing shaft 11 are fixed to the insulating plastic carrier 1 and combined with the extended end 12 of the insulating plastic carrier 1 without gaps, and with the copper conductor parts 2 The same number of carbon parts 3 are riveted and electrically conductively connected to these copper conductor parts 2, and the carbon parts 3 are likewise bonded to the insulating plastic carrier 1 without gaps.

[0055] Each carbon made part 3 has a carbon brush contact surface 31, on the back face ...

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Abstract

The provided flat carbon-commutator for dc motor in electrojet fuel pump comprises: an insulation plastic carrier, composite copper conductor members, and a carbon-made member riveted with former conductor members, wherein there is a conventional convex block on back of every carbon-made member, and a milled sector hole on every copper semiconductor for inserting the convex block. The relative manufacture method is simple and convenient.

Description

technical field [0001] The invention relates to a commutator for a motor, in particular to a planar carbon commutator. In use the contact brushes press axially against the planar contact surface of the commutator (rather than radially in the case of a cylindrical commutator) and the contact surface is made of a carbon outer layer which engages the contact brushes Several commutator segments (usually in a circular arrangement) are provided. Background technique [0002] After the car adopts the EFI device, its fuel pump cannot use a brushless motor due to volume limitations. Currently, it can only use a DC motor. [0003] The EFI fuel pump is a key component of the "EFI" system. Its function is to pump gasoline from the fuel tank into the gasoline pipeline and maintain a certain pressure and flow. The electric fuel pump is driven by a small motor, and the motor and the pump are installed in a sealed housing, which is then installed in the fuel tank. [0004] The commutator...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R39/06H01R43/06
Inventor 史文浩
Owner ZHEJIANG ANDI HIGH TECH DEVE
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