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Support element for electric motor brush for fuel pump

A technology for supporting components and electric motors, which is applied in the direction of electric components, electrical components, circuits, etc., and can solve problems such as difficulty in component installation

Inactive Publication Date: 2016-01-13
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, component installation is still difficult as the brushes should be installed from the inside out
This configuration requires unloading of the motor shaft in order to replace the brushes

Method used

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  • Support element for electric motor brush for fuel pump
  • Support element for electric motor brush for fuel pump
  • Support element for electric motor brush for fuel pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] as can be obtained from figure 1 As seen in , the cover 2 is positioned on the body 3 of the fuel pump 1 . Cover 2 has an opening 5 for the flow of fuel pumped by fuel pump 1 . The cover 2 further has a female mating protrusion 4 to receive an electrical connector for feeding the electric motor of the pump 1 . The mating protrusions 4 surround the electrical contacts 6c to protect them from accidental contact, thereby reducing the effects of galvanic corrosion and ensuring food fixation of the electrical connector. The fitting protrusion 4 is provided with a snap-fit ​​engaging part 4 a arranged on the side.

[0014] exist figure 2 In , the cover 2 of the fuel pump 1 is shown in perspective for easy observation of its internal parts. It can be seen that the electrical contact 6c is positioned within the female mating protrusion 4 . The opening 5 for the fuel flow and the brush holder 10 integrating the cover 2 with the pump body 3 can also be seen. image 3 The c...

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PUM

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Abstract

The present invention relates to a support element (6) for an electric motor brush for a fuel pump of an automobile vehicle. The support element (6) is permanently mounted on the body (3) of a fuel pump (1), above an assembly formed by a brush (9), the assembly being provided with wiring (8) and a spring (7), and being contained inside a brush holder (10) in the body (3) of the fuel pump (1). The support element (6) has a central part (6b) arranged on the brush (9) and spring (7) assembly contained inside the brush holder (10), a lateral projection (6d) in contact with the wiring (8), a leg (6a) bent towards the body (3) of the fuel pump (1) and a leg (6c) bent away from the body (3) of the fuel pump (1).

Description

technical field [0001] The invention relates to a support part of an electric motor brush for a fuel pump of a motor vehicle, said support part being fixedly mounted on the fuel pump body, positioned above an assembly formed by brushes provided with cables and springs, so that The above components are housed in the brush holder. Background technique [0002] In motor vehicles, fuel pumps are actuated by electric motors, which in many cases operate on direct current using brushes. The brushes press against the commutator, which directs current to the motor windings. To ensure that there is always electrical contact between the brushes and the commutator, the brushes are usually supported by springs that press the brushes against the commutator. Rotation of the commutator in contact with the brushes under spring pressure causes some wear over time to the brushes, usually made of graphite. Thus, the brushes are moved against the commutator by springs to compensate for said w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R39/40H01R39/58H02K13/10
CPCH01R39/40H02K5/148H02K13/006
Inventor 马科斯·爱德华多·达席尔瓦
Owner ROBERT BOSCH GMBH
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