FIELD: electrical engineering.
SUBSTANCE: The invention relates to the field of electrical engineering and can be used in multi-position push-button and keyboard electronic switches and electronic information input devices, in particular in membrane keyboards. The multi-position switching device contains a printed circuit board with electrical wiring of the switching circuit, electrical contacts connected to the switching circuit, made in the form of conductive sections formed on the printed circuit board, forming a contact zone, as well as closing elements made in the form of conductive sections formed on the carrier, forming a closing zone, while the electrical contacts include two pairs of diagonally located groups in the contact zone, two electrical contacts in each group, groups of electrical contacts, located in the same pair, connected to the switching network to ensure the closure of the same electrically independent circuit, different for the electrical contacts located in different pairs of diagonally arranged groups, the closing elements are movably installed above the electrical contacts with the possibility of contacting them when applying a pressure force to the closing elements to ensure an electrical connection in each group of electrical contacts, according to the invention, the electrical contacts are made in the form of eight continuous conductive pads separated by intersecting insulation tracks in the central part of the contact zone and jointly occupying its area, having the form of radial sector elements forming two pairs of diagonally arranged groups of two radial sector elements in each group. EFFECT: increase in the manufacturability of the device.
5 cl, 3 dwg
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|
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|
RU2134466C1 |
Authors
Dates
2021-07-09—Published
2020-12-28—Filed