Touch switch with flexible, intermediate conductive spacer as sensor button
First Claim
1. A touch contact switch being operated by contact or by approach comprising:
- an evaluating circuit; and
,a sensor button forming one pole of a capacitor and being electrically connected to said evaluating circuit, said sensor button being a flexible, spatially extended, three-dimensionally variable and electrically conductive body, wherein switching is initiated by a change in capacitance, the change in capacitance caused by an contact member approaching said sensor button or said contact member contacting said sensor button.
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Accused Products
Abstract
A touch contact switch has a sensor key or button with a spatially extended, electrically conductive foam or flexible plastic or rubber body. The switch is operated by contact or approach. The sensor button essentially forms one pole of a capacitor and is electrically connected to an evaluating circuit of the touch contact switch, wherein switching is initiated as a result of a capacitance change in consequence of approach or contact. The sensor button can be bonded directly on a mounting plate of the associated electrical evaluating circuit or can be engaged by a pin or the like. The body can be flush to the underside of a cover, which forms or contains the contact surface. The body can include an opening along the longitudinal axis in which is insertable a LED.
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Citations
19 Claims
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1. A touch contact switch being operated by contact or by approach comprising:
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an evaluating circuit; and
,a sensor button forming one pole of a capacitor and being electrically connected to said evaluating circuit, said sensor button being a flexible, spatially extended, three-dimensionally variable and electrically conductive body, wherein switching is initiated by a change in capacitance, the change in capacitance caused by an contact member approaching said sensor button or said contact member contacting said sensor button. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification