| 摘要 |
PROBLEM TO BE SOLVED: To provide a cooling device improving cooling efficiency of a cooling package without increasing noise by a cooling fan. SOLUTION: Auxiliary cooling means 14 is provided on an opposite side of a cooling fan 13 via the cooling package 12. Cooling air sucked by the cooling fan 13 is supplemented by compressed air from each blasting part 31, 32 blasting cooling air in a direction including same direction composition. Consequently, increase of output of the cooling fan more than necessary and enlargement of the cooling fan are not necessary, and cooling efficiency of the cooling package 12 can be improved without increase of noise of the cooling fan accompanying increase of output and enlargement. COPYRIGHT: (C)2007,JPO&INPIT
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