Electrical connectors – Including elastomeric or nonmetallic conductive portion
Patent
1997-07-30
1998-10-20
Abrams, Neil
Electrical connectors
Including elastomeric or nonmetallic conductive portion
439913, 73115, H01R 1344
Patent
active
058238026
ABSTRACT:
An electrical connector is plugged onto an electrical device that has a hollow sleeve and an annular bonnet that has an outer electrical contact ring. The electrical connector includes an annular insulator, a lower elastomeric seal ring, a combination seal and contact member, a shielded conductor to carry an electrical signal out of the electrical connector and a flanged metal guard ring. The combination seal and contact member has a non-conductive elastomeric annulus and a conductive elastomeric portion that are co-molded to provide a unitary annular part. The annulus has a flanged upper end that is bonded to the flanged guard ring and a thinner lower end that has a plurality of axially spaced circumferential flexible sealing lips that biasingly engage the bonnet above the outer electrical contact ring. The conductive elastomeric portion is made of a non-conductive elastomeric material that has conductive particles widely dispersed throughout the material so that the conductive elastomeric portion exhibits a high electrical resistance in the uncompressed state that diminishes when the elastomeric portion is compressed by the outer electrical contact ring of the bonnet so that the conductive elastomeric portion acts as an electrical conductor that connects the contact ring and the conductor electrically. The lower elastomeric seal ring has a plurality of axially spaced flexible circumferential sealing lips that biasingly engage the bonnet so that the electrical connector sealingly engages the bonnet below as well as above the contact ring and the conductive elastomeric portion of the combination seal and contact member.
REFERENCES:
patent: 4602506 (1986-07-01), Sawamoto et al.
patent: 4969352 (1990-11-01), Sellnau
patent: 5329809 (1994-07-01), Sellnau et al.
patent: 5363046 (1994-11-01), Shimasakiet et al.
patent: 5487676 (1996-01-01), Maruyama et al.
Abrams Neil
Brooks Cary W.
General Motors Corporation
Patel T. C.
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