BATTERY PACK

To provide a battery pack in which end plates and side plates are securely fastened even if loads are applied to the end plates from a battery stack.SOLUTION: A battery pack 100 includes: a battery stack 20 in which multiple electric cells 10 are arranged in an X direction; end plates 30A, 30B dispo...

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Bibliographic Details
Main Author ISHIKAWA MASAYOSHI
Format Patent
LanguageEnglish
Japanese
Published 06.06.2019
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Summary:To provide a battery pack in which end plates and side plates are securely fastened even if loads are applied to the end plates from a battery stack.SOLUTION: A battery pack 100 includes: a battery stack 20 in which multiple electric cells 10 are arranged in an X direction; end plates 30A, 30B disposed at both end parts of the battery stack 20; side plates 40A, 40B connecting the end plates 30A, 30B; and fastening members 50 which fasten the end plates 30A, 30B to the side plates 40A, 40B and apply restraint loads to a space between the end plates 30A, 30B. The multiple fastening members 50 which fasten the end plate 30A to the side plate 40A include: multiple first fastening members 51 arranged in a Y direction; and multiple second fastening members 52 which are arranged in the Y direction, disposed closer to the battery stack 20 side than the first fastening members 51, and offset relative to the first fastening members 51 in the Y direction.SELECTED DRAWING: Figure 1 【課題】電池スタックからエンドプレートに荷重が加わっても、エンドプレートとサイドプレートが強固に締結された組電池を提供する。【解決手段】組電池100は、複数の単電池10がX方向に配列された電池スタック20と、電池スタック20の両端部に配置されたエンドプレート30A、30Bと、エンドプレート30A、30Bを連結するサイドプレート40A、40Bと、エンドプレート30A、30Bとサイドプレート40A、40Bとを締結し、エンドプレート30A、30B間に拘束荷重を印加する締結部材50と、を備えている。エンドプレート30Aとサイドプレート40Aとを締結する複数の締結部材50は、Y方向に並ぶ複数の第1締結部材51と、Y方向に並びかつ第1締結部材51より電池スタック20側に配置されかつ第1締結部材51に対してY方向に偏倚している複数の第2締結部材52とを含む。【選択図】図1
Bibliography:Application Number: JP20170215570