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Driving device

A driving device and accommodating technology, which is applied in transmission devices, gear transmission devices, electromechanical devices, etc., can solve problems such as the decline in the self-locking ability of worm gears and the hidden dangers of automobile anti-theft performance

Inactive Publication Date: 2014-06-04
JOHNSON ELECTRIC SHENZHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as the thread angle increases, the self-locking ability of the worm gear will decrease, which makes it easy for external forces to open or close the windows, which poses a hidden danger to the car's anti-theft performance.

Method used

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Embodiment Construction

[0043] The technical solutions and other beneficial effects of the present invention will be apparent through the detailed description of specific embodiments of the present invention below in conjunction with the accompanying drawings. The drawings are provided for reference and illustration only, and are not intended to limit the present invention. The dimensions shown in the drawings are only for the convenience of clear description, and do not limit the proportional relationship.

[0044] see figure 1 , for the convenience of description, in the following embodiments, the driving device is used to drive the window. However, it can be understood that the present invention is not limited thereto, for example, it can also be used to drive a brake system and the like. The driving device 10 according to the first embodiment of the present invention includes a housing 20, a motor 30 fixed to the housing 20, a worm 40 driven by the motor 30, a worm wheel 50 engaged with the wor...

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Abstract

The invention provides a driving device. The driving device comprises a shell, a motor fixed to the shell, a worm driven by the motor, and a worm gear which is accommodated in the shell and is meshed with the worm so as to output a power. The driving device also includes an engaging member and a driver which is fixed to the shell; the engaging member is provided with an engaging part which is engaged with the worm or the worm gear; the engaging member is driven by the driver to move to a first position where the engaging part is engaged with the worm or the worm gear and the engaging part does not rotate; and the engaging member can be driven to move to a second position where the engaging part is separated from the worm or the worm gear. The engaging part and the engaging member are engaged so as to ensure that the external force cannot cause the worm to rotate; and the effective locking effect is realized.

Description

technical field [0001] The invention relates to a driving device, in particular to a driving device with a locking function. Background technique [0002] A driving device, such as a driving device for driving a vehicle window, generally includes a housing, a motor accommodated in the housing, a worm driven by the motor, and a worm gear driven by the worm. The worm gear can then be connected to the window through a gearbox, so that the window can be moved to fully open, fully closed or any position in between under the drive of the motor forward or reverse. In the existing driving device, in order to improve the transmission efficiency, a worm with a larger thread angle is often used. However, as the thread angle increases, the self-locking ability of the worm gear will decrease, which makes it easy for external forces to open or close the window, burying hidden dangers for the anti-theft performance of the car. Contents of the invention [0003] In view of this, it is n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K7/116F16H1/16F16H55/22
Inventor 李越塔静宁刘立生王勇
Owner JOHNSON ELECTRIC SHENZHEN
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