Electrical connectors – With insulation other than conductor sheath – Insulating body having plural mutually insulated terminals...
Patent
1994-12-14
1996-01-30
Bryant, David P.
Electrical connectors
With insulation other than conductor sheath
Insulating body having plural mutually insulated terminals...
439 82, 439 84, H01R 1342
Patent
active
054876842
ABSTRACT:
An electrical contact pin is disclosed for mounting in a through hole in a printed circuit board. The contact pin has a pointed part and a longitudinal contact part which interacts with the hole when mounted therein. The cross-section of the contact part is generally H-shaped formed of four fins which project parallel to the longitudinal axis of the pin and are connected over the longitudinal distance of the contact part by a central cross rib and define two longitudinal recesses situated on either side of the cross rib. Each longitudinal recess has an essentially V-shaped floor. The contact part is made slightly curved at its short sides, each of which comprises two fins merging into each other over the entire longitudinal distance. The fins are also curved more inwardly by their fin ends starting from the pointed part over an appreciable part of the longitudinal distance. The curvature of the fin ends first gradually increasing starting at the pointed part, and then decreasing. A process for making such a contact pin is also disclosed in which the longitudinal recesses of the contact part with the V-shaped floors are formed at both sides of the cross rib by means of two corresponding knife-shaped dies. The contact part is enclosed by two opposite semi-cylindrical pressure elements over the longitudinal distance and is curved at the short sides by pressure. The above-mentioned appreciable part can be curved more greatly here, due to the fact that the two cylindrical pressure elements in the appreciable part have a semi-cylindrical piece with a smaller diameter and a semi-conical piece merging into a remaining semi-cylindrical piece with greater diameter.
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Dupont Compliant Press Fit Pins--Data Sheet, Dupont Corporation, Jun. 1985.
Pigmans Paulus J. M.
Schalk Petrus W. H.
Berg Technology Inc.
Bryant David P.
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