Capacitive switch of electric/electronic device

Details Capacitive switch of electric/electronic device Capacitive switch of electric/electronic device

2007-06-07

2010-06-22

Dole, Timothy J (Department: 2831)

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

C324S662000, C200S600000

Reexamination Certificate

active

07741858

ABSTRACT:
A capacitive switch of an electric/electronic device is provided. The capacitive switch includes a plurality of contacts which are disposed at a front of a control panel; a plurality of capacitive sensors which are disposed at a rear of the control panel, respectively face the contacts, and detect capacitance variations caused by static electricity that affects the contacts; and a plurality of void removal elements which are respectively disposed between the capacitive sensors and the contacts, remove a plurality of voids between the capacitive sensors and the contacts, and are formed of an elastic material so as to be able to compensate for various sized voids. Therefore, it is possible to easily remove various sized voids between the contacts and the capacitive sensors using the void removal elements, to prevent malfunction of the capacitive sensors due to the existence of voids, and to provide various shapes of control panels and various shapes of printed circuit boards.

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