BATTERY PACK FOR SECONDARY BATTERY

To make a battery pack immune to vibration and torsional stress.SOLUTION: A battery pack 1 comprises: a plurality of battery cells; a case 3 in which the battery cells are accommodated on a bottom; a lid body 2 which is joined while covering the case 3 and isolates the battery cells from the outside...

Full description

Saved in:
Bibliographic Details
Main Author KATAYAMA YUJI
Format Patent
LanguageEnglish
Japanese
Published 10.04.2024
Subjects
Online AccessGet full text

Cover

Loading…
More Information
Summary:To make a battery pack immune to vibration and torsional stress.SOLUTION: A battery pack 1 comprises: a plurality of battery cells; a case 3 in which the battery cells are accommodated on a bottom; a lid body 2 which is joined while covering the case 3 and isolates the battery cells from the outside; a frame 5 supporting a bottom face of the case 3 from a lower side and receiving a load; a fastening part which fastens the case 3 and the frame 5; and a bracket 53 which fastens the frame 5 at an installation place. In the fastening part, supporting portions 52a, 52b and 52c including supporting portion bolt holes and supported portions 39a, 39b and 39c including supported portion bolt holes are fastened by bolts 54b; vibration or torsional stress from the bracket is buffered by the frame 5; and the transfer thereof to the case 3 is suppressed.SELECTED DRAWING: Figure 1 【課題】 本発明の電池パックが解決しようとする課題は、電池パックが、振動やねじり応力に強くなるようにすることである。【解決手段】電池パック1は、複数の電池セルと、電池セルを底部に収容するケース3と、ケース3を覆って接合され電池セルを外部から隔離する蓋体2と、ケース3の底面部を下方から支持し荷重を受け持つフレーム5と、ケース3とフレーム5とを締結する締結部と、フレーム5を設置場所に締結するブラケット53とを備え、締結部は、支持部ボルト孔を備えた支持部52a,52b、52cと、被支持部ボルト孔を備えた被支持部39a、39b、39cがボルト54bにより締結されて、ブラケットからの振動やねじり応力をフレーム5により緩衝してケース3に伝達することを抑制する。【選択図】図1
Bibliography:Application Number: JP20220157082