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Electric machine, actuator with an electric machine of this type as well as use of an electric machine of this type in a motor vehicle

A technology of bearings and rotor shafts, applied in the field of servo drive mechanisms, can solve problems such as incomplete compensation of tolerances

Inactive Publication Date: 2007-01-17
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to processing and assembly technology reasons, however, tolerances cannot be fully compensated by means of such compensating elements

Method used

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  • Electric machine, actuator with an electric machine of this type as well as use of an electric machine of this type in a motor vehicle
  • Electric machine, actuator with an electric machine of this type as well as use of an electric machine of this type in a motor vehicle
  • Electric machine, actuator with an electric machine of this type as well as use of an electric machine of this type in a motor vehicle

Examples

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Embodiment Construction

[0029] figure 1 A sectional view of an exemplary actuating drive 1 with a transmission unit 2 and an electric motor 4 according to the invention is shown. The transmission unit 2 has a transmission housing in which a worm wheel and a worm 3 meshing with the worm wheel are accommodated. The motor 4 includes a casing 6, a stator 17 and a rotor 7 for motorized drive housed in the stator. The worm 3 is located at the free end of a rotor shaft 5 driven by the electric motor 4 and partly housed in a housing 6 of the electric motor 4 . The rotor shaft 5 is guided in a bearing 8 which accommodates the motor-side end of the rotor shaft 5 and in a further bearing opposite the transmission unit 2 . exist figure 1 In the embodiment of the rotor shaft 5 is integrally formed. A two-part embodiment of the rotor shaft 5 is likewise conceivable, ie a motor shaft and a transmission shaft with a connecting element in between.

[0030] figure 2 is according to figure 1 An enlarged view of...

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Abstract

The electric machine has a stator, a rotor with a rotor shaft and a bearing. One end of the rotor shaft is guided in the bearing which is inserted into a clamping nut in the axial direction. The clamping nut is fixed into a housing together with the bearing. The clamping nut forms a pot bearing, which axially limits the end of the rotor shaft guided by the bearing. The pot bearing is an axially tapered cylindrical appendage of the clamping nut which forms a springing element acting essentially axially for a possible axial movement of the pot bearing. The clamping nut effects the attachment of the engine-side bearing in the housing of the electric machine and at the same time an axial limitation of the rotor shaft in the sense of a tolerance compensation or axial compensation. The component and assembly complexity for the electric machine are hereby reduced. The present invention also relates to an actuator, which comprises a transmission machine unit and a motor like this. It also relates to the application in the automobile.

Description

technical field [0001] The invention relates to an electric machine with a stator, a rotor with a rotor shaft and a bearing. One end of the rotor shaft is guided in a bearing which is pushed into a clamping frame in the axial direction. The clamping frame is fixed together with the bearing in the housing of the motor. The invention also relates to an actuating drive having a transmission unit and such an electric motor. Such an electric motor can be used, for example, in the context of a motor vehicle and can be used there, for example, as a window regulator motor or as a pump drive. Background technique [0002] An electric motor, for example an electric motor, is also required for driving an actuating drive, for example a window regulator drive or a drive for actuating a sliding sunroof. Such an actuating drive also has a transmission unit in addition to the electric motor. The transmission unit can include, for example, a worm wheel and a transmission shaft in the for...

Claims

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Application Information

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IPC IPC(8): H02K5/16H02K5/00H02K7/00
CPCH02K7/081H02K5/1672H02K5/24
Inventor G·维尔内克斯K·查普斯
Owner SIEMENS AG
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