Strain-relieving wire lead-in

Details Strain-relieving wire lead-in Strain-relieving wire lead-in

2006-06-27

2006-06-27

Nguyen, Tuyen T (Department: 2832)

Inductor devices

Winding with terminals, taps, or coil conductor end...

C336S198000

Reexamination Certificate

active

07068137

ABSTRACT:
A coil bobbin (10) that comprises a housing (12) with an interior (13) and including a floor (14) with at least one electrical lead-in (16) projecting through an aperture (15) in the floor. The lead-in (16) has one end (17) formed for attachment to a printed circuit board (18). The electrical lead-in (16) has a given diameter D1and is provided with thermal-strain relief (20) positioned within the interior (13) of housing (14). The aperture (15) has a diameter D2larger than the given diameter D1of the lead-in. The larger diameter D2of the aperture allows free movement of the lead-in during thermal cycling and contributes to the desired result. This construction also allows the use of round lead-ins over the previously employed square lead-ins, which were required to provide the rigid interference fit previously necessary.

REFERENCES:
patent: 2929132 (1960-03-01), Wohlhieter
patent: 3928829 (1975-12-01), Abrams
patent: 4617543 (1986-10-01), Akachi et al.
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patent: 4700167 (1987-10-01), Barankin et al.
patent: 4760366 (1988-07-01), Mitsui
patent: 4853667 (1989-08-01), Freimuth et al.
patent: 5315280 (1994-05-01), Stokes et al.
patent: 5694105 (1997-12-01), Weiner
patent: 6369682 (2002-04-01), Thompson et al.
patent: 6559749 (2003-05-01), Weiner

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