| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat radiation device that can achieve sufficient heat radiation even at the downwind of a heat sink.SOLUTION: A heat radiation device 1 includes plural fins 3 which are provided to another surface 2c of a base 2b having plural heating bodies secured to one surface 2a thereof so that the tips 6a, 6b of the plural fins 3 are protruded at a predetermined height inside a cylindrical large air duct. The heat radiation device 1 is provided with air blowers 5a, 5b for blowing air in one direction in the large air duct. The plural fins 3 are provided in parallel so as to configure a small air duct along one direction, and notches are provided from the windward side on the tip side facing the windward side of every predetermined number of fins 3a out of the plural fins.SELECTED DRAWING: Figure 1 |
