| 摘要 |
PROBLEM TO BE SOLVED: To obtain a heat sink capable of improving heat dissipation ability and uniformly cooling an electronic machine placed in the heat sink. SOLUTION: The heat sink includes a base plate 3, a pair of opposite side plates 4 provided perpendicularly to the base plate 3, a plurality of platelike fins 5 provided on the base plate 3 in parallel with the side plates 4 between the pair of side plates 4, an upper plate 6 provided on the side plate 4 opposite to the base plate 3, an axial fan 7 having a diameter smaller than a distance between the fins 5 provided at both ends and placed in contact with the upper plate 6 between the base plate 3 and the upper plate 6, and a ventilation flue passing under the axial fan 7 for connecting from one of side plates 4 to the other side plate 4. COPYRIGHT: (C)2006,JPO&NCIPI
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