| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat sink which can solve the problem that its flow passage for circulating a refrigerant is expensive, because the passage is formed through time-consuming cutting, etc., and must be welded with great care for preventing the leakage of the refrigerant. SOLUTION: Recessed sections are provided on one surface of a cooling block and pipes are passed through the recessed sections for circulating the refrigerant. The pipes are integrated with the cooling block by bending leaf springs, retaining plates, or click sections preformed on the block.
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