JP1709974S - Battery case - Google Patents

Battery case

Info

Publication number
JP1709974S
JP1709974S JP2021014955F JP2021014955F JP1709974S JP 1709974 S JP1709974 S JP 1709974S JP 2021014955 F JP2021014955 F JP 2021014955F JP 2021014955 F JP2021014955 F JP 2021014955F JP 1709974 S JP1709974 S JP 1709974S
Authority
JP
Japan
Prior art keywords
explosion
proof valve
plate portion
battery case
thin plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
JP2021014955F
Other languages
Japanese (ja)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP2021014955F priority Critical patent/JP1709974S/en
Application granted granted Critical
Publication of JP1709974S publication Critical patent/JP1709974S/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

本物品は、蓋と函体からなる電池ケースであって、函体に電極や電解液が収容されるものである。蓋には防爆弁が設けられている。防爆弁は、折り重ねて形成された折り重ね部と、当該折り重ね部の内側に設けられた薄板部と、防爆弁の中央部に薄板部よりも厚く形成された厚板部と、薄板部に設けられ、所定の圧力が作用すると破断する破断用溝部と、を備えている。このため、電池ケースの内部圧力が上昇した際、防爆弁が変形した後、破断用溝部を起点にして溝が開裂するので、内圧を外部へ開放することができる。This article is a battery case composed of a lid and a box, and the electrode and the electrolytic solution are housed in the box. The lid is provided with an explosion-proof valve. The explosion-proof valve includes a folded portion formed by folding, a thin plate portion provided inside the folded portion, a thick plate portion formed thicker than the thin plate portion in the center of the explosion-proof valve, and a thin plate portion. It is provided with a breaking groove portion that breaks when a predetermined pressure is applied. Therefore, when the internal pressure of the battery case rises, after the explosion-proof valve is deformed, the groove is opened from the breaking groove portion as a starting point, so that the internal pressure can be released to the outside.

JP2021014955F 2021-07-09 2021-07-09 Battery case Active JP1709974S (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2021014955F JP1709974S (en) 2021-07-09 2021-07-09 Battery case

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2021014955F JP1709974S (en) 2021-07-09 2021-07-09 Battery case

Publications (1)

Publication Number Publication Date
JP1709974S true JP1709974S (en) 2022-03-16

Family

ID=80630777

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2021014955F Active JP1709974S (en) 2021-07-09 2021-07-09 Battery case

Country Status (1)

Country Link
JP (1) JP1709974S (en)

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