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Drive unit for adjusting vehicle components with magnetic brake

A technology of vehicle components and driving equipment, which is applied in the direction of switches with braking devices, vehicle components, wing leaf components, etc., which can solve the structural space consumption requirements of braking devices, be easily affected by temperature, and brake devices are easy to wear, etc. question

Active Publication Date: 2021-06-15
BROSE FAHRZEUGTEILE GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Such conventional braking devices are complex and have a considerable installation space requirement
Additionally, brakes that utilize friction for braking are subject to wear and can be temperature sensitive

Method used

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  • Drive unit for adjusting vehicle components with magnetic brake
  • Drive unit for adjusting vehicle components with magnetic brake
  • Drive unit for adjusting vehicle components with magnetic brake

Examples

Experimental program
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Effect test

Embodiment Construction

[0052] figure 1 The drive device 3 is shown in perspective, which has an electric drive 34 and a permanent magnet brake 1 . Electric drive 34 is designed as an electric motor and has, in housing 340 , a stator that is fixed relative to housing 340 and a rotor that is rotatable relative to the stator. The rotor is rotatable about a longitudinal axis L and drives a driven shaft 341 on which is arranged a transmission 35 arranged downstream (cf. Figure 3A with 3B ) of the pinion element 342 to adjust the vehicle components.

[0053] as from figure 2 As can be seen in FIG. 2 , a drive device 3 of this type is used, for example, to adjust a rear lid 20 of a vehicle 2 . Drive unit 3 acts in a known manner between rear lid 20 and body 21 of vehicle 2 .

[0054] In principle, however, a drive device 3 of the type described here can also be used to adjust completely different types of vehicle components.

[0055] The drive device 3 can be designed, for example, as a screw drive...

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PUM

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Abstract

A drive device (3) for adjusting a vehicle component, in particular a rear lid (20), comprising an electric drive (34) for driving the vehicle component, the drive having a function for transmitting an adjusting force a driven shaft (341) to a vehicle component; and a first braking device (1) operatively connected to the driven shaft (341), said first braking device having at least one permanent magnet element (12, 14) It is also designed to provide a braking force for securing the vehicle component in the currently assumed position. In addition, a second braking device (4) is provided, which is designed to switch the electric drive (34) into generator braking operation in order to convert the The generated power is at least partially fed back into the drive to provide a braking force for braking the movement of the vehicle component. In this way, a drive unit is provided with a permanent magnet brake which can be designed in a simple and space-saving manner while providing a reliable braking force.

Description

technical field [0001] The invention relates to a drive unit for adjusting a vehicle component and to a method for operating a drive unit. Background technique [0002] Such a drive device includes an electric drive for driving a vehicle component. The electric drive has an output shaft for transmitting the adjusting force to the vehicle component. A first braking device is connected to the output shaft, which has at least one permanent magnet element and is designed to provide a braking force for securing the vehicle component in the currently assumed position. [0003] In the drive device known from EP 1 940 012 A1, the braking device in the form of a so-called hysteresis brake has a plate-shaped carrier element connected to the driven shaft in a rotationally fixed manner, for example an annular ring made of soft magnetic material The hysteresis element is fixed on the carrier element. Two permanent magnets on the stator are opposite the hysteresis element. The hystere...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E05F15/622
CPCE05Y2201/258E05Y2900/546E05F15/622E05F15/614B60J5/10B62D33/027E05F3/00E05Y2201/438E05Y2201/442E05Y2201/686E05Y2201/70E05Y2201/702E05Y2201/716H02P31/00
Inventor 弗洛里安·韦尔克
Owner BROSE FAHRZEUGTEILE GMBH & CO KG
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