| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat sink structure for a case of a simple structure which can remarkably improve a heat sink efficiency without using an external fan, in the heat sink structure of a heat exchanger of the housing installed in a different environment of forcible or natural cooling conditions of inside and outside installed indoor or outdoor. SOLUTION: The heat sink structure 1 for the case comprises an outer surface side fin group 2, and an inner surface side fin group 3 on the outer wall 12 of a housing body 5 of an outdoor housing 4. The interval (a) of the fins 2A of the group 2 is formed wider than that (b) of the fins 3A of the group 3. Thus, the air permeability between the fins 3A is improved. As a result, the heat sink efficiency can be remarkably improved. COPYRIGHT: (C)2004,JPO
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