CIRCUIT SWITCH FOR KEYBOARD

摘要

A circuit switch for a keyboard is formed of a first plate and a second plate. A first sensitive portion and a second sensitive portion are mounted on a surface of the first plate, superposed on each other, and electrically insulated against each other. A first conductive wire is located on the first plate and electrically connected with the first sensitive portion. A conductive portion is located on the second plate. The second plate is parallel to the first plate in arrangement. The conductive portion corresponds to the second sensitive portion in a way that an interval is located therebetween. A second conductive wire is located on the second plate and electrically connected with the conductive. portion. A grounded circuit is located between the first and second plates and spaced from the second sensitive portion. The grounded circuit partially overlaps or crosses the first or second conductive wire.

主权项

1. A circuit switch for keys of a keyboard, comprising:
a first plate, on a surface of which a first sensitive portion and a second sensitive portion are mounted and superposed on each other, a first insulated portion being mounted between the first and second sensitive portions for electrically insulating the first and second sensitive portions against each other, a first conductive wire being located at the first plate and electrically connected with the first sensitive portion; a second plate, on a surface of which a conductive portion is mounted, the first and second plates being arranged in parallel, the conductive portion corresponding to the second sensitive portion in a way that they are spaced from each other, a second conductive wire being located at the second plate and electrically connected with the conductive portion; and a grounded circuit mounted between the first and second plates and spaced from the second sensitive portion, the grounded circuit partially overlapping or crossing the first or second conductive wire.