| 摘要 |
<p>A cooler (4) includes a plate (10), a cooling case (20) having a coolant (40) flowing therein, and a plurality of wavy fins (30) having a raised curved portion (31) and a lowered curved portion (32) formed alternately on a side face in a flow direction of the coolant (40). In this cooler (4), the coolant (40) flows through between the raised curved portion (31) and the lowered curved portion (32) opposite to each other in a meandering manner. The raised curved portion (31) is provided with a bank (31x) creating a flow of coolant from the raised curved portion (31) toward the opposite lowered curved portion (32). With this bank (31x), a part (MS1) of a main stream (MS) of the coolant (40) can be mixed with the coolant (40) stagnating near the lowered curved portion (32), whereby the heat transfer coefficient of the wavy fins (30) can be improved. Thus, stagnation of the coolant (40) near the lowered curved portion (32) can be prevented, so that the cooler (4) can have enhanced cooling performance.</p> |
