| 摘要 |
PROBLEM TO BE SOLVED: To provide a cooling plate capable of having a channel with a pitch made small to the extent that it can be substantially stably manufactured and exhibit satisfactory performance. SOLUTION: This cooling plate is constituted so that a corrugated fin 2 is sandwiched by means of two plate-shaped fins 3, 4 from both sides, and the corrugated fin 2 consists of a plate having a wave-shaped cross-section and the plate-shaped fins 3, 4 consist of plate parts 31, 41 and a plurality of protrusions 32, 42. In the plate-shaped fin 3, from one side of the corrugated fin 2 the protrusion 32 is put into a wave-shaped recess and comes in contact with the bottom of the recess, and the plate part 31 comes in contact with the top of a wave-shaped convex part. In the plate-shaped fin 4, from the other side of the corrugated fin 2 the protrusion 42 is put into the wave-shaped recess and comes in contact with the bottom of the recess, and the plate part 41 comes in contact with the top of the wave-shaped convex part.
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