Hermetically sealed case sealed by packing

Details Hermetically sealed case sealed by packing Hermetically sealed case sealed by packing

1994-12-23

1997-09-23

Kincaid, Kristine L.

Electricity: conductors and insulators

Conduits, cables or conductors

Single duct conduits

220 38, 220327, 220378, H05K 506

Patent

active

056707452

ABSTRACT:
A hermetically sealed case, has a space between a top case and a bottom case which can be completely sealed by means of a waterproof packing, and in which an area around a connecting cable is completely sealed. A first case having an annular projection formed at the periphery thereof is assembled to a second case having an annular groove having a shape corresponding to that of the projection of the first case formed at the periphery of the second case. An elastic member is provided between the projection of said first case and the groove of said second case. The width of said projection is smaller than the width of said groove, and said projection is fitted within said groove in a transverse direction. The elastic member deflects toward the groove, that is, deflects such that the ends of the elastic member are drawn toward the projection. Line contact is established between the corners of the projection and the elastic member, and also between the corners of the groove and the elastic member. A through hole through which the connecting cable is led is provided in one of the cases. The elastic member is pressed by a press-fitting member, and is press-fit between the through hole and the connecting cable. Sealing of the pair of cases and sealing of the area around the connecting cable performed independently of each other.

REFERENCES:
patent: 4307264 (1981-12-01), Hess
patent: 4627646 (1986-12-01), Kessel
patent: 5531345 (1996-07-01), Nakamura et al.

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