| 摘要 |
PROBLEM TO BE SOLVED: To improve a heat exchanging efficiency of a heat exchanger.SOLUTION: This invention relates to a heat exchanger 3 for use in heat exchanging between inner air of a controller 2 and the surrounding air. The heat exchanger has a heat sink 20, the heat sink 20 has a pair of plate members 24, 25 oppositely arranged and a plurality of fins 29 partitioning a space between the pair of plate members 24, 25 into a plurality of air channels 30 arranged side by side in planer directions of the plate members 24, 25 and the inner air and the surrounding air are alternatively flowed in at least a part of the plurality of air channels 30.SELECTED DRAWING: Figure 5 |
