Electrical connectors – Metallic connector or contact having part permanently...
Patent
1989-10-20
1992-03-24
Desmond, Eugene F.
Electrical connectors
Metallic connector or contact having part permanently...
174DIG8, 219 8511, H01R 402
Patent
active
050983199
ABSTRACT:
A relatively flat, rectangular multipin connector has a terminal end to each pin adapted to receive the stripped end of a wire to be soldered thereto. Both surfaces of the pin may be arcuate in cross-section, one surface being concave and adapted to receive a wire to be soldered thereto. The convex surface has a covering of a thin layer of ferromagnetic material having an effective Curie temperature above the fusion temperature of the solder to be employed. A sleeve of heat shrinkable material has an interior ring of solder and is positioned over the region of contact between the wire and terminal end of the pin and has fusible plastic at each end. Each wire is placed on an individual pin and successively clamped in place, each between a different pair of jaws. The sleeve is slid over the terminal and the assembly is subjected to an alternating magnetic field to heat the ferromagnetic material, melt the solder, shrink the sleeve to force all of the solder into the region of contact between the pin and wire and cause the sealant at the ends of the tube to seal the tube to the wire insulation and the connector. A non-wettable material placed over the ferromagnetic material prevents magnetic shielding of the ferromagnetic material. The concave surface of the pin has a curvature that insures that all the solder is squeezed by the sleeve into the region of contact of the pin and the wire.
REFERENCES:
patent: 4914267 (1990-04-01), Derbyshire
McGaffigan Thomas H.
O'Brien Philip T.
AMP Incorporated
Desmond Eugene F.
Metcal Inc.
Rose Howard L.
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