JPS6435665U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の実施例における密閉形電池の
安全弁装置を示す断面図、第２図イ、ロ、ハは、
本考案の弾性体の実施例を示す上面図及び側面図
、第３図は従来の密閉形電池の安全弁装置を示す
断面図、第４図は従来の弾性体の上面図及び側面
図である。 １，１０１……端子板、１ａ，１０１ａ……排
出孔、２，１０２……弾性体、２ａ……溝、３，
１０３……蓋板、３ａ，１０３ａ……ガス圧感知
孔。 Fig. 1 is a sectional view showing a safety valve device for a sealed battery according to an embodiment of the present invention, and Fig. 2 A, B, and C are
FIG. 3 is a sectional view showing a conventional safety valve device for a sealed battery, and FIG. 4 is a top view and side view of a conventional elastic body. 1,101...Terminal board, 1a, 101a...Discharge hole, 2,102...Elastic body, 2a...Groove, 3,
103...Lid plate, 3a, 103a...Gas pressure sensing hole.

Claims (1)

【実用新案登録請求の範囲】 (1) 発電要素を内填したケース開口部を密閉す
る蓋板と、この蓋板中央に設けられたガス圧感知
孔を閉塞する柱状の弾性体を内装する皿状端子板
とを、一体化して構成される密閉形電池の安全弁
装置において、弾性体の側面に縦方向の溝を形成
し、この溝と対応する位置にガス排出孔を少なく
とも１個有する皿状端子板を用いたことを特徴と
する密閉形電池の安全弁装置。 (2) 該弾性体側面に縦方向の溝を設けたことに
より減少する弾性体の体積の割合が、５体積％〜
７５体積％であることを特徴とする実用新案登録
請求の範囲第１項記載の密閉形電池の安全弁装置
。[Scope of Claim for Utility Model Registration] (1) A lid plate that seals the opening of the case containing the power generation element, and a dish that houses a columnar elastic body that closes the gas pressure sensing hole provided in the center of the lid plate. In a safety valve device for a sealed battery configured by integrating a terminal plate with a shape, a dish-shaped battery having a longitudinal groove formed on the side surface of the elastic body and at least one gas discharge hole at a position corresponding to the groove is provided. A safety valve device for a sealed battery characterized by using a terminal board. (2) The proportion of the volume of the elastic body reduced by providing a vertical groove on the side surface of the elastic body is 5% by volume or more.
75% by volume of the safety valve device for a sealed battery according to claim 1 of the claimed utility model registration.