Electricity: electrical systems and devices – Miscellaneous
Patent
1990-06-29
1992-02-04
Picard, Leo P.
Electricity: electrical systems and devices
Miscellaneous
211 41, 439 64, H05K 714
Patent
active
050863720
ABSTRACT:
A system for distributing electrical power to side edges (108, 112) of a daughter card (102) upon insertion into a card cage (10) includes a pair of source and return bus bars (118, 116) mounted on at least one of the side edges and electrically connected by arrays of terminals (172) to power circuits of the card, insulated by a cover (120) having a rail (126) for following the guide channels (18, 20) of the card cage at each card location. Rearward ends of the bus bars have blades (122, 124) which are received into receptacle contacts (46, 44) mounted in the card cage above and below the backplane (14), which are mounted at each card location and electrically connected to source and return busses (68, 58) of the card cage. The receptacle contacts (46, 44) are float mounted to be easily incrementally moved upon blade receipt during card module (100) insertion, and also easily incrementally moved after blade mating when power connections are established, to then permit precision adjustment of rear card edge (104) in two dimensions so that card edge connectors (106) thereon become aligned with corresponding backplane connectors (16) for subsequent high density signal terminal mating.
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"Printed Circuit Board Bus Bars" by George M. Streddle--pp. 19-23, Western Elec. Eng. Jan. '79.
"Bus Bars for PCB Applications Keyed to Design, Performance", Electronics, Jun. 1984, Parks pp. 23-26.
Bennett Glenn E.
Lucius John E.
Polk Roger N.
Rider Frederick H.
Szczesny David S.
AMP Incorporated
Ness Anton P.
Picard Leo P.
Sparks Donald A.
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