| 摘要 |
PROBLEM TO BE SOLVED: To enhance the cooling performance and to prevent clogging due to dust in the refrigerant, in a heat sink having an inner fin.SOLUTION: A first inner fin 4 is attached to the inside of a mounting plate 3, and a second inner fin 5 is attached to the first inner fin 4. The flow path interval P1 of the first inner fin 4 is set smaller than the flow path interval P2 of the second inner fin 5, and delivery means 6 of dust 12 is provided between the first inner fin 4 and second inner fin 5. |
