公开(公告)号：US12087960B2

公开(公告)日：2024-09-10

申请号：US17256181

申请日：2019-06-10

申请人： SANYO Electric Co., Ltd.

发明人： Takeshi Hashimoto

IPC分类号： H01M50/247 ,  H01M10/0525 ,  H01M50/213 ,  H01M50/284

CPC分类号： H01M50/247 ,  H01M50/213 ,  H01M50/284 ,  H01M10/0525 ,  H01M2220/30

摘要： The battery pack includes cylindrical battery, a circuit board, and an exterior case including first case and second case. First case has a curved portion along an outer peripheral surface of cylindrical battery and first vertical wall connected to an end edge of the curved portion. Second case has second vertical wall connected to first vertical wall. First vertical wall has fitting protrusion protruding from opposed surface facing second vertical wall. Second vertical wall has fitting groove that is formed in opposed surface facing first vertical wall and that guides fitting protrusion. Fitting protrusion is guided into fitting groove, and first vertical wall and second vertical wall are welded together. First vertical wall has inner surface in a concave shape along a surface of cylindrical battery, and a leading end portion with opposed surface, being thicker than curved portion.

公开(公告)号：US11855298B2

公开(公告)日：2023-12-26

申请号：US17048164

申请日：2019-04-05

申请人： SANYO Electric Co., Ltd.

发明人： Satoshi Kawakami ,  Takeshi Hashimoto ,  Haruhiko Yoneda ,  Masaya Nakano ,  Takao Takatsu

IPC分类号： H01M50/244 ,  H01M50/213 ,  H01M50/289 ,  H01M50/262 ,  H01M50/207 ,  H01M50/204 ,  H01M50/271

CPC分类号： H01M50/244 ,  H01M50/204 ,  H01M50/207 ,  H01M50/213 ,  H01M50/262 ,  H01M50/271 ,  H01M50/289

摘要： A cell module includes a plurality of cylindrical batteries and a holder composed by arranging each of cylindrical batteries in a parallel posture. The holder includes: a holder body having holding spaces for arranging cylindrical batteries at fixed positions; and a sub holder stacked on the holder body. The holder body has stopper portions deformed toward surfaces of cylindrical batteries arranged in holding spaces. The sub holder has push rods that push out stopper portions to cylindrical batteries in a state of being coupled to the holder body. In a state in which the sub holder is coupled to the holder body, in the cell module, the push rods thrust stopper portions against cylindrical batteries, and press the surfaces of cylindrical batteries arranged in holding spaces.