초록 ▼

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 circ

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.

대표청구항 ▼

[ We 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-dimensio

[ We 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.