| 摘要 |
<p>PROBLEM TO BE SOLVED: To readily manufacture a secondary battery into a simple shape, and to reduce a cost by arranging plural battery installing parts in a fin block, and making contact directly or indirectly with a large number of fins or bending fins with the outer periphery of the secondary battery by these battery installing parts. SOLUTION: Fins 2 are composed of iron and aluminum superior in thermal conductivity, and plural fins 2 are juxtaposed at intervals in a direction vertical with respect to the axis of a battery 1, or are arranged by being bent in a meandering shape to form a fin block 3. The installing parts 2c composed of through-holes 2a and the flange parts 2b are arranged in a plurality in the respective fins 2, and heating by the battery 1 is conducted to the fins 2 through the installing parts 2c to exchange heat with outside air. Even when an inter- battery temperature fluctuates by an arranging environment, heat is transmitted/ uniformized between respective batteries through the fines 2. When the fins 2 are arranged in large numbers in a heating concentrating place of the battery 1 and a temperature rise place in a composite battery, the temperature is uniformized, so that fluctuations can be prevented.</p> |
