Upward deflecting support disk for electrochemical cell seal

H - Electricity – 01 – M

Patent

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Details

H01M 2/08 (2006.01) H01M 2/04 (2006.01)

Patent

CA 2196986

A metal support disk (10) useful in sealing an electrochemical cell exerts a resilient outward radial force against the seal to assure seal integrity over a wide temperature range and exerts an upward force against an adjacent metal end cap terminal (100) to assure continued mechanical and electrical contact with the terminal. The support is a stepped disk having a centrally located, shallow, cylindrical pill-box (12) with the bottom (22) of the pill-box (12) extending radially outward into an annular ring (24). A spring means in the form of an S-shaped rim (26) extends down from the periphery of the ring (24) terminating at its bottom in an outward extending flange (28). The edge of the flange (28) presses a plastic seal member against the inside wall.

Un disque de support métallique (10) utile pour rendre étanche une pile électrochimique, exerce une force élastique radiale, dirigée vers l'extérieur, contre un joint pour assurer l'étanchéité de celui-ci dans une plage étendue de températures, et il exerce une force dirigée vers le haut contre un capuchon métallique d'extrémité (100) adjoignant, constituant une borne, pour assurer un contact physique et électrique permanent avec cette borne. Ce support est un disque à étages avec un creux central cylindrique peu profond (12), dont le bas (22) se prolonge radialement vers l'extérieur pour former un anneau (24). Un moyen de ressort ayant la forme d'un bord en "S" (26) descend de la périphérie de l'anneau (24) pour se terminer à son bas en une bride (28) dirigée vers l'extérieur. Le bord de la bride (28) presse un élément d'étanchéité en plastique contre la paroi interne.

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