| 摘要 |
PROBLEM TO BE SOLVED: To provide a battery pack that is able to evenly and efficiently cool a plurality of battery modules incorporated, by circulating a gas in its interior portion by a simple structure.SOLUTION: A battery pack 1 comprises a plurality of battery modules 2, a tray 11, a cover 12, a lower-stage support member 13, an upper-stage support member 14, a partition member 15, a duct 161, and a fan 162. The plurality of battery modules are arranged in at least two upper and lower stages. The lower-stage support member 13 is fixed to the internal wall of the tray 11 and supports the lower-stage modules 2. The upper-stage support member 14 supports the upper-stage battery modules 2. The partition member 15 divides the interior portion of the battery pack 1 into an upper chamber A and a lower chamber B. The duct 161 passes through the partition member 15 and allows the upper chamber A and the lower chamber B to communicate with each other. The fan 162 is connected to the duct 161 extending to the lower chamber B and circulates a gas G in the upper and lower chambers A, B. |
