Electrically conducting contact and method for production...

Details Electrically conducting contact and method for production... Electrically conducting contact and method for production...

H - Electricity

01

H

H01H 13/785 (2006.01) H01H 13/79 (2006.01)

Patent

CA 2607408

The invention relates to a contact element (7) for the intermittent contacting of conductor tracks (2, 3) on a circuit board, in particular, for flexible touch pads (4-6), for example for flexible input devices in the automobile industry. According to the invention, a very reliable construction which is particularly suitable for high voltage applications may be achieved, whereby the contact element is made from a metal foam (8). The metal foam is preferably at least partly infiltrated by an elastomeric material which can also be the material of construction of the touchpad. The invention further relates to a method for production of said contact element and touchpads/input devices with such contact pads and the use of said contact pads (7).

L'invention concerne un élément de contact (7) permettant la mise en contact par intermittence de pistes conductrices (2, 3) sur une carte de circuits imprimés, en particulier pour des tapis sensibles souples (4-6), par exemple pour des organes d'entrée souples dans le domaine de l'automobile. Cet élément de contact est constitué d'une éponge métallique (8), ce qui permet d'obtenir une construction très fiable et particulièrement appropriée à des courants élevés ou des tensions élevées. L'éponge métallique est de préférence au moins partiellement pénétrée par un matériau élastomère pouvant constituer, dans un même temps, le matériau de construction du tapis sensible. Cette invention concerne également un procédé pour fabriquer un élément de contact de ce type et des tapis sensibles/organes d'entrée pourvus de pastilles de contact de ce type ainsi que l'utilisation desdites pastilles de contact (7).

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