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Brush holder for rotating electrical machine

A technology for rotating electrical machines and brush holders, applied in the direction of electromechanical devices, electrical components, electrical components, etc., can solve problems such as ground offset, not direct, electromagnetic compatibility problems, etc.

Inactive Publication Date: 2020-10-23
VALEO EQUIP ELECTRIC MOTEUR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However the path that makes it possible to connect the ground to the electronic components is not direct and can be longer or shorter and is therefore inductive depending on the arrangement of the vehicle
Especially due to the voltage drop in the supply circuit of the motor, there will be an offset between the ground of the chassis and the ground of the electronic components
This type of offset causes electromagnetic compatibility issues with the motor environment

Method used

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  • Brush holder for rotating electrical machine
  • Brush holder for rotating electrical machine
  • Brush holder for rotating electrical machine

Examples

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Embodiment Construction

[0054] The embodiments described below are in no way limiting; in particular, if such a selection of features is sufficient to provide a technical advantage, or to distinguish the invention from the prior art, it will be possible to conceive of including only the selection of features described below, in conjunction with all Variations of the invention isolated from the other features described. In particular, all variants and all embodiments described can be combined with each other if there is no objectionable combination from a technical point of view. In this case, this will be referred to in this specification.

[0055] figure 1 A compact multiphase rotating electric machine 10 is shown, especially for motor vehicles. The rotating electrical machine 10 converts mechanical energy to electrical energy in alternator mode, and can be operated in motor mode to convert electrical energy to mechanical energy. The rotating electric machine 10 is, for example, an alternator, an...

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Abstract

The present invention proposes a rotating electrical machine, in particular for a motor vehicle. The machine comprises live parts; a casing (11); a brush holder (24) comprising at least one brush (23), an electric excitation path (44) for exciting the brush and a housing (37) made of an electrically insulating material; and an electronic assembly (36) comprising a control module (61) and an excitation path (48) connecting the excitation path (44) of the brush holder to the control module. The control module (61) comprises a ground path (63), the ground path (63) being electrically connected tothe casing (11) via the brush holder (24).

Description

technical field [0001] In particular, the invention relates to a brush holder for a rotating electrical machine. Background technique [0002] The invention has a particularly advantageous application in the field of rotating electric machines such as alternators, alternator starters or reversible electric machines. It should be remembered that a reversible electric machine is a rotating electric machine which can work reversibly, first as a generator functioning as an alternator, and then as an electric motor, for example in order to start the heat engine of a motor vehicle. [0003] A rotating electrical machine consists of a rotor that is movable in rotation about an axis and a stationary stator surrounding the rotor. The rotor, stator, and shaft are assembled in a housing that also supports the electronic components that control the operation of the motor. In alternator mode, as the rotor spins, it induces a magnetic field on the stator, which is then converted into el...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K11/33H02K5/14H02K11/04
CPCH02K5/141H02K11/33H02K11/05
Inventor R.本欧姆兰R.莫蒂尔C.蒙泰尔C.路易斯L.多曼格M.法尔圭尔F.格林L.博丁
Owner VALEO EQUIP ELECTRIC MOTEUR
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