Patent ID: 7834287
Filing Date: 2010-11-16
Classification: D06F,H03K

Abstract:
1. A capacitive touch switch, comprising: a touch panel having an upper side and an underside; a printed circuit board disposed at a distance below said underside of said touch panel; a capacitive sensor element disposed between said underside of said touch panel and said printed circuit board, said capacitive sensor element being in electrically conductive contact with said printed circuit board; said capacitive sensor element having a compression spring formed of an electrically conductive material and a contact element formed of an electrically conductive material, said compression spring having a side facing said touch panel, said contact element being disposed on said side of said compression spring facing said touch panel, and said contact element being in electrically conductive contact with said compression spring; and a central holding pin being integral with said touch panel and extending through said capacitive sensor element substantially over the entire height of said capacitive sensor element.