| 摘要 |
The invention is a battery pack wherein: internal cases (4) for securing single batteries (121) contain a plurality of individual housing chambers (40); fluid drive devices (140A, 140B), cause a fluid to pass through the individual housing chambers and then to be aspirated, and in so doing form a circulation flow; beams (3) support the internal cases from beneath; each of the internal cases has inlet portions (40a) into which the fluid flows in, and outlet portions (40b) from which the fluid flows out; a downstream side chamber (41) communicating with the outlet portions is provided between individual housing chambers that face one another with an interval open therebetween, inside each of the internal cases; the downstream side chamber is connected to bottom wall side passages (135) and is formed as partitions by the beams; and the fluid flowing out from the outlet portions into the downstream side chambers passes through the bottom wall side passages and is aspirated by an aspiration unit (143a) of each of the fluid drive devices. |
