| 摘要 |
<P>PROBLEM TO BE SOLVED: To efficiently cool a battery cell of a battery pack. <P>SOLUTION: A cover 1b of a battery pack case 1 comprises a suction port 30 and an exhaust port 31. Battery housing parts 7a-7c housing respective battery modules 2, and a junction box housing part 8 are provided in the battery pack case 1. Supply passages 9a-9c are provided on one end of each of the battery housing parts 7a-7c, and exhaust passages 10a-10c on the other end. A guide 15 is provided between the cover 1b and the battery modules 2 housed in the battery housing parts 7a-7c. A distribution passage 43 is defined by the guide 15 and a lower face of the cover 1b. Air flows in the distribution passage 43 from the exhaust port 30. The air flowing in the distribution passage 43 flows in the supply passages 9a-9c of the battery housing parts 7a-7c, flows into the exhaust passages 10a-10c through a gap 11 between battery cells 25 of the battery modules 2, and are exhausted from the exhaust port 31. <P>COPYRIGHT: (C)2013,JPO&INPIT |
