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Electric motor

A technology of motor casing and sliding contact, which is used in the manufacture of motor generators, electrical components, electromechanical devices, etc., to achieve the effect of saving material costs, saving space, and reducing fuel consumption

Inactive Publication Date: 2008-10-08
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the sliding contact carrier requires a lot of space in the direction of the rotor axis, since the sliding contact must be movable in the direction of the rotor axis, and the wing-like auxiliary mechanism protrudes far into the motor housing

Method used

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  • Electric motor
  • Electric motor
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Experimental program
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Effect test

Embodiment Construction

[0025] Figure 1 shows a longitudinal sectional view of the electric machine, as it is used in particular for automotive windshield wipers. The motor has a cylindrical motor housing 1 , a front housing cover 2 , a rear housing bottom 3 , a rotor shaft 4 , a rotor, a commutator 6 , a stator 7 and a sliding contact bracket 8 .

[0026] The front housing opening of the motor housing is closed by the front housing cover 2 . The housing base 3 is formed as a rear housing cover 3 which closes the rear housing opening. Front and rear bearings 9 and 10 are provided in the center of the front cover and the rear cover 3 . The rear housing bottom 3 and the cylindrical motor housing 1 can alternatively also be designed in one piece as a pole pot. Such a pole pot as well as the front housing cover 3 can both be made of plastic, which enables a considerable reduction in weight compared to a material composed of metal.

[0027] A pole ring 19 composed of a magnetic material extends along t...

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PUM

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Abstract

The present invention relates to a sliding-contact holder (8) for an electric motor, which has a cylindrical motor housing (1), a front housing cover (2), a rear housing base (3), a rotor shaft (4), a rotor (5), a commutator (6), a stator (7) and a sliding-contact holder (8). The sliding-contact holder (8) comprises at least two holder elements, which each bear at least one sliding contact (11). The two holder elements are inserted individually into the cylindrical motor housing (1). Owing to its design, the sliding-contact holder (8) saves on space and can easily be inserted into the motor housing (1).

Description

technical field [0001] The invention relates to a sliding contact carrier according to the preamble of claim 1 , an electric machine with such a sliding contact carrier according to the preamble of claim 3 , and a sliding contact carrier according to the preamble of claim 8 . The described corresponding method for assembling a motor. Background technique [0002] This sliding contact carrier, this motor and this method for assembling the motor are described in DE 9013 006 U1. The electric machine has a sliding contact carrier, which is constructed in one piece, ie the carrier element on which the sliding contact is mounted is formed in one piece. When assembling the motor, the rotor shaft on which the rotor and the commutator are mounted is first installed in the housing of the motor. Then push the sliding contact onto the commutator. In order to ensure good electrical contact, the sliding contacts must be elastically pressed against the commutator after they have been in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K5/14
CPCH02K5/148H02K15/00H02K5/14
Inventor A·哈维格霍斯特M·科斯特斯
Owner ROBERT BOSCH GMBH