| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat sink device light-weighted, excellent in heat radiation, and readily fabricable for improved assemblability by using a sheet metal member for radiating heat generated by a light source.SOLUTION: A heat sink ASSY 13 comprises: a slitted base plate 5 of a board-like shape in which slits 5-1, etc. are formed; plate fins 1 to 4 (two pairs of plate fins 1 to 4) each of which has its lower part bent to form a bent part, and the remaining parts of which form fin parts which pass through the corresponding slits of the slitted base plate 5 and extend upward; a base plate 6 which covers the bottom face of the bent part of each plate fin and holds the bent part of each plate fin between it and the slitted base plate 5; and a holding machine (male screws 21a, 22a, 23a and female screws 21b, 22b, 23b) for securing the bent parts between the slitted base plate 5 and the base plate 6. |
