发明名称 |
Underhood lamp assembly with gravity-actuated switch |
摘要 |
A gravity-actuated switch having a switch module with a switch housing and a lid. An electrically conductive pendulum is pivotally secured to the lid via a pivot pin so that the pendulum hangs within the housing and pivots with respect to the housing under the influence of gravity. A first electrical contact connectable to a power source abuts the pivot pin, which is electrically conductive. A second electrical contact is provided within the housing in a predetermined position such that the pendulum makes contact with it when the switch module is tilted by a predetermined amount. When the pendulum makes contact with the second electrical contact, a short circuit is provided across the pair of contacts, thus closing the switch. The switch is incorporated in a lamp assembly provided on the underside of the hood or trunk lid of an automobile to selectively provide power to a lamp so that the lamp is illuminated only when the hood or trunk lid is opened by at least a predetermined amount. A switch composed of a pivoting magnet and a magnetic switch can be used instead of the combination of the conductive pendulum and the curved electrical contact.
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申请公布号 |
US5669696(A) |
申请公布日期 |
1997.09.23 |
申请号 |
US19960639559 |
申请日期 |
1996.04.29 |
申请人 |
MICRO CRAFT, INC. |
发明人 |
BROWN, WILLIAM M.;EKLOV, KENNETH A. |
分类号 |
B60Q3/06;H01H9/22;H01H35/02;(IPC1-7):F21V33/00 |
主分类号 |
B60Q3/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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