| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a power supply device capable of cooling a battery in a battery case to a uniform temperature, and at the same time simply adjusting the manufactured battery case to uniformize a difference in temperature of the battery. <P>SOLUTION: The power supply device has the battery case 2A with a housing room 14 to house a plurality of chargeable batteries 1 with a cooling gap 18 to the battery surface, and a blowing mechanism to feed air to the cooling gap 18 of the battery case 2A. The battery case 2A is structured to cool the battery 1, by mutually connecting two or more adjoining cooling gaps 18 and feeding the air passing through the upwind cooling gap 18 to the downwind cooling gap 18. Further, the battery case 2A is formed of a corrugating inner side 19 of a downwind housing room 14B exposed to the downwind cooling gap 18, with a more deteriorating surface roughness in the corrugating inner side 19 of the downwind housing room 14B than in the inner side of the upwind housing room 14A exposed to the upwind cooling gap 18. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
