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Drive unit for actuators in a motor vehicle

A technology for driving units and actuators, applied in electromechanical devices, electrical components, electric components, etc., can solve the problems of accurate centering, easy damage and expensive damage to housing parts, so as to improve service life, suppress noise, and ensure accurate support. Effect

Inactive Publication Date: 2007-10-10
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Forming the centering journal and the centering hole is associated with an additional machining process, which is quite expensive compared to polar cylinders made of metal
In addition, the centering journals here often have a small diameter, so they are easily damaged, which impairs the exact alignment of the two housing parts

Method used

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  • Drive unit for actuators in a motor vehicle
  • Drive unit for actuators in a motor vehicle
  • Drive unit for actuators in a motor vehicle

Examples

Experimental program
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Effect test

Embodiment Construction

[0022] The exemplary embodiment shown in FIG. 1 shows a drive unit 10 according to the invention, in which a first housing part 12 is designed as a polar cylinder of an electric motor 16 and a second housing part 14 is designed as a transmission housing housing. A brush holder 18 is provided between the first and second housing part 12 , 14 , which can also be designed as a further housing part 14 in another alternative. In the first housing part 12 there is a permanent magnet 20 which cooperates with an armature 22 of the electric motor 16 . The motor 16 has an armature shaft 24 which extends through the brush holder 18 into the drive housing 14 . Arranged on the armature shaft 24 is a worm 26 which meshes with a worm wheel 28 . The armature shaft 24 is mounted on the one hand in the first housing part 12 , for example by means of a cylindrical bearing 30 , and on the other hand in the second housing part 14 , for example by means of a spherical bearing 32 . In the exemplar...

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PUM

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Abstract

The invention concerns a drive unit ( 10 ) for actuating drives in a motor vehicle with a first housing part ( 12 ), in particular a pole pot ( 12 ), and a second housing part ( 14 ), in particular a gear housing or electronic housing ( 14, 15 ), which can be connected by means of connecting elements ( 40 ), wherein the first housing part ( 12 ) features receptacles ( 38 ) for the connecting elements ( 40 ), wherein the receptacles ( 38 ) are embodied as centering holes ( 36 ) for corresponding centering pins ( 48 ), which are arranged on the second housing part ( 14 ).

Description

technical field [0001] The invention relates to a drive unit for an actuator of a motor vehicle. Background technique [0002] A window lift drive is known from WO 01 / 61133, the housing of which comprises a pole cylinder and a housing which closes the pole cylinder. The housing that closes the polar cylinder is here a transmission housing with an integrated electronics housing, wherein a separate component is arranged between the two housing parts as a brush holder, which simultaneously serves as A seal between the two housing parts. The polar cylinder consists of a deep-drawn smooth-transition cylindrical tube, at the open end of which a flange is formed, in which holes are drilled for screws. A buried hole thread is provided in the flange of the transmission case, and a screw is screwed into the buried hole thread, so that the two shell parts are firmly connected to each other. [0003] In order to center the two housing parts, centering holes are usually additionally p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K7/116E05F15/16H02K5/00
CPCH02K5/00H02K7/1166E05Y2900/55E05F15/1692E05F15/697Y10T74/2186F16B2200/50H02K7/116
Inventor W.豪斯塞克S.弗罗因德T.赫克M.奥克斯
Owner ROBERT BOSCH GMBH