Electrical connectors – Preformed panel circuit arrangement – e.g. – pcb – icm – dip,... – Distinct contact secured to panel circuit
Patent
1989-11-13
1991-05-14
Bradley, Paula A.
Electrical connectors
Preformed panel circuit arrangement, e.g., pcb, icm, dip,...
Distinct contact secured to panel circuit
29843, 29860, 439 78, 439589, H01R 909
Patent
active
050151924
ABSTRACT:
A method is described for installing contacts with their rear tail ends soldered to holes of a circuit board and their front mating ends insulative housing layers, which facilitates inspection of the solder connections to the circuit board and defluxing of the assembly after soldering. The front contact portions are partially inserted into holes in an elastomeric housing layer (50, FIG. 3) until a first forwardly-facing shoulder (76) on each contact abuts an abutment (92) on the elastomeric layer. The contact rear ends are inserted into corresponding holes in the circuit board (56) until a second rearwardly-facing shoulder on each contact abuts the front face of the board, and the contacts are then soldered to the board. The distance (H, FIG. 2) between the first and second contact shoulders is sufficient to provide a considerable gap (A) between the board and the elastomeric layer, so the solder connectiosn can be visually inspected. Finally, the contacts are pushed further into the housing until the rear face of the elastomeric layer lies facewise against the front face of the board. The elastomeric layer can be formed with a tubular extension (170, FIG. 7) around each plug contact front portion to extend partially into a hole in a more rigid forward insulative layer of the housing. When a socket contact mates with the plug contact, the extreme tip (176) of the socket contact compresses the elastomeric tubular portion to seal to the tubular extension and to compress the tubular extension so it expands and seals against the hole in the more rigid forward layer.
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Welsh David E.
Wilson Albert H.
Bradley Paula A.
ITT Corporation
Peterson Thomas L.
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