Anti-thrust mushroom-shaped member and motor having same

A technology of mushroom-shaped components, applied in the direction of static components of magnetic circuits, rotating components against centrifugal force, electromechanical devices, etc., can solve problems such as disturbing vibration and noise, and poor self-locking performance

Active Publication Date: 2018-10-16
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this embodiment is that due to the relatively large outer radius of the thrust mushroom against the mating surface over a relatively large area, disturbing vibrations and noises are produced during normal operation of the motor
In addition, the self-locking performance deteriorates during the service life, so that the electric motor can undesirably reverse in the event of an external, load-side torque action

Method used

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  • Anti-thrust mushroom-shaped member and motor having same
  • Anti-thrust mushroom-shaped member and motor having same

Examples

Experimental program
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Effect test

Embodiment Construction

[0019] exist figure 1 shows an electric motor 50, wherein an electric motor 52 and a transmission 54—in particular a worm gear—form a transmission drive unit 55, such as the transmission drive unit for adjusting sliding roofs, window panes in motor vehicles Or seat parts like that. The electric motor 52 has a stator 70 , wherein permanent magnets 72 are arranged in a pole housing 74 . A rotor 76 is arranged in the stator 70 , wherein an armature assembly 66 with coils 68 is fastened on the rotor shaft 58 . For torque transmission from the electric motor 52 , a worm 78 is arranged on the rotor shaft 58 , which engages in a worm wheel 79 of the transmission 54 . The worm gear 79 is connected to an output pinion 80 , on which an output torque for adjusting a movable part, for example a window pane, is provided. On the axial end 82 of the rotor shaft 58 , an elastic damping element 84 , for example damping rubber, is arranged between the rotor shaft and the wall 85 of the housi...

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PUM

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Abstract

Provided is an anti-thrust mushroom-shaped member (10) for axially supporting a rotor shaft (58) of a motor (50). The anti-thrust mushroom-shaped member has an end surface (12) on which an anti-thrustsurface (14) is formed. The anti-thrust surface (14) cooperates with a mating surface (60) of the motor (50) in a mounted state, and a groove (18) is formed on the center of the end surface (12) in the radial direction, and the groove is radially arranged in the anti-thrust surface (14), so that the anti-thrust surface (14) is configured in a circular ring, wherein the anti-thrust surface has aninclination angle (27) on a radial direction (19) relative to an imaginary plane (25) perpendicular to a rotor shaft (58). Also included is a motor (10) into which the anti-thrust mushroom-shaped member (10) is mounted.

Description

technical field [0001] The invention relates to a thrust mushroom and an electric machine with the thrust mushroom according to the preambles of the independent claims. Background technique [0002] A thrust mushroom component of an electric motor is known from DE 10 2013 208 295 A1, wherein the thrust surface is designed as a flat circular ring surface. A disadvantage of this embodiment is that, due to the relatively large outer radius, the thrust mushroom rests against the mating surface over a relatively large area, which produces disturbing vibrations and noises during normal operation of the electric motor. In addition, the self-locking behavior deteriorates during the service life, so that the electric motor can undesirably reverse in the event of an external, load-side torque action. Embodiments according to the invention should eliminate this disadvantage. Contents of the invention [0003] The thrust mushroom according to the invention and the electric motor acc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K5/16F16C17/08H02K5/24H02K7/08F16C17/26F16C17/10
CPCF16C17/08H02K5/16H02K5/24H02K7/081F16C2380/27F16C17/26F16C17/10H02K1/17H02K5/161H02K7/1166F16C2380/00F16C2240/30
Inventor M.雷克D.德普纳G.阿布赞特K.奥伯勒M.克尔韦O.施特恩斯P.库泽罗
Owner ROBERT BOSCH GMBH
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