H - Electricity – 01 – R
Patent
H - Electricity
01
R
339/10.3
H01R 13/62 (2006.01) H01R 12/16 (2006.01)
Patent
CA 1048617
ABSTRACT This invention relates to electrical connectors which offer zero insertion force to printed circuit boards. Known electrical connectors which exhibit a zero insertion force for printed circuit boards and the like usually include contacts which are moved away from a con- tacting position with a printed circuit board to a non- contacting position to provide interference free entry and exit of a printed circuit board. A variety of contact moving structures, including inclined plane and other camming mechanisms, have been utilized to move the contacts between the contacting and non-contacting positions. The prior art devices are very complex and expensive to manu- facture. The present invention provides a simple design for a zero insertion force connector for receiging a printed circuit board and electrically contacting circuits thereon. The invention utilizes a two-piece assembly, the pieces of which include surfaces which define a cavity which rotatably mounts a contact operating cam shaft. A plurality of contacts are mounted in one of the pieces and are normally biased toward a contacting position, and respective cams carried by the cam shaft move the contacts away from the contacting position to positions which are free of interference with a circuit board. Each of the contacts includes a portion for engaging the circuit board within a longitudinal slot formed in the other of the pieces, the longitudinal slot being open along one side and at each end to permit the circuit board to be plugged in through the open longitudinal side or to be slid in from each end without interference.
237591
Bunker Ramo Corporation
Na
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