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Electric motor circuit with overload protection

A motor and circuit technology, applied in the field of mirror structure, can solve problems such as increasing the cost of rearview mirrors

Inactive Publication Date: 2005-11-09
MCI荷兰公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This also puts high demands on the protection circuit, which in turn increases the cost of the rearview mirror

Method used

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  • Electric motor circuit with overload protection
  • Electric motor circuit with overload protection
  • Electric motor circuit with overload protection

Examples

Experimental program
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Effect test

Embodiment Construction

[0017] figure 1 A mirror bracket of a vehicle is shown in cross-section. The bracket is equipped with a fixed part 10 for mounting to a motor vehicle (not shown), and a rotating part 12 rotatable about an axis of rotation 14 associated with the fixed part 10 . The swivel member 12 includes a mounting hole 16 into which a vehicle mirror (not shown) is mounted. In the bracket, a motor 18 is included, which is connected to the shaft 14 for rotating the rotating part relative to the fixed member 10 (for example, by means of a worm gear (not shown) on the motor shaft and a gear (not shown) on the shaft 14 . out) for horizontal connections). The rotating part 12 also forms a housing for a motor 18 .

[0018] For example, the motor 18 is used to adjust the angle of the mirrors. When adjusting the position of the rotating member 12 relative to the fixed member 10 , thereby adjusting the position of the mirror (not shown) relative to the fixed member 10 , the motor 18 is activated....

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PUM

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Abstract

An electric motor circuit utilized, for instance, for adjusting a wing mirror of a vehicle is provided with a motor with a driving circuit. The driving circuit includes a relay switch element (22) included in series with the motor (20) and a protecting circuit for bringing the relay switch element (22) into a non-conductive position at overload of the motor. The protective circuit is provided with an exciting coil (26) and a deenergizing coil (28). The exciting coil (26) serves for bringing the relay switch element (22) into a conductive position. The exciting coil (26) is included parallel to the motor (20) in series with the relay switch element (22). The deenergizing coil (28) is included in series with the motor (20) for bringing the relay switch element (22) in a non-conductive position when a current through the deenergizing coil (28) and the motor (20) exceeds a threshold value. Motor and motor protection are preferably included together in the housing of a mirror construction.

Description

technical field [0001] The invention relates to a motor circuit with overload protection, in particular to a mirror arrangement equipped with such a motor circuit for use as a rear view mirror in a vehicle. Background technique [0002] A motor may become overloaded when its operation is inhibited. For example, motors can be used in motorized foldable rearview mirrors of automobiles, as is known, for example, from Dutch patent application 2017466 to find an example of the mechanical design of such a mirror. In the case of foldable rearview mirrors, the mirror is brought into the operating position or into the folded position by actuating a switch in the vehicle, in which the mirror is less subject to accident-related injuries. An operating circuit causes the mirror to be activated in response to the switch, preferably applying a voltage to the motor having a polarity dependent on the desired direction of rotation of the motor. [0003] Since the rear view mirror is placed ...

Claims

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Application Information

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IPC IPC(8): B60R1/07B60R1/074H01H47/14H02H7/085
CPCH01H47/14B60R1/074H02H7/0851B60R1/07
Inventor 卢多维克斯·科内利斯·保卢斯·韦尔默朗巴斯蒂安·胡伊基则斯埃里克·赫拉尔杜斯·保卢斯·范什拉格迈特威廉·尼辛
Owner MCI荷兰公司