| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a cooling structure for a battery pack in which temperatures of batteries accommodated in a battery case can be made uniform.SOLUTION: A cooling structure for a battery case comprises a draft air duct 100 including a main draft air duct 101, and a plurality of batteries 20 are provided in parallel within a battery case 50. Cooling air supplied from a cooling unit 60 to the draft air duct 100 flows from another end side of the battery case 50 in a length direction to one end side and returns to the cooling unit 60 while cooling the batteries 20 in order. The draft air duct 100 includes a plurality of sub draft air ducts 102 connected to the main draft air duct 101 at predetermined intervals. Cooling air flowing out of the sub draft air ducts 102 is confluent with the cooling air which flows from the other end side of the battery case 50 in the length direction to the one end side and cools the batteries 20 in order.</p> |
