Electrical connectors – With insulation other than conductor sheath – Metallic connector or contact secured to insulation
Patent
1995-01-09
1996-10-15
Paumen, Gary F.
Electrical connectors
With insulation other than conductor sheath
Metallic connector or contact secured to insulation
439 82, H01R 1341
Patent
active
055649548
ABSTRACT:
An electrical contact is provided for press-fit insertion into a circuit board, which provides a large retention force (resistance to pullout) even for very small circuit board holes. A compliant section (14, FIG. 1) of the contact, which lies in the hole, is of the eye-of-the-needle type which includes a pair of largely parallel beams (24, 26) with opposite ends that merge and with middle portions (30, 32) that are laterally spaced. Additional holding power is achieved by providing a protuberance (40, 42) on a middle portion of each beam, which projects towards the other beam. When the contact is press-fit in a circuit board hole, at least the tips of the protuberances are crushed, or plastically deformed. The protuberances preferably have sides that are tapered, and the average axial length (H, FIG. 4) of each protuberance is preferably between onethird and three times its thickness (T).
REFERENCES:
patent: 4363529 (1982-12-01), Loose
patent: 4655537 (1987-04-01), Andrews
patent: 4701140 (1987-10-01), Orbanic
patent: 4857018 (1989-08-01), Pickles
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