| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a heat sink having a small size, which is does not have attitude dependence, and high heat transportation capability. SOLUTION: The heat sink comprises a heat receiving plate 3, a plate-type heat pipe 5 thermally connected to the plate 3, and a radiating fin row 7 connected thermally to the pipe 5. The pipe 5 has a two-layer superposing structure, in which the one plate-type heat pipe is folded substantially at a center in the length direction of pore. A heating medium evaporated in the pipe of a lower side adhered with the plate 3 flows in the pipe of an upper side. Thus, a large quantity of heat is transferred to the pipe of the upper side, to improve the heat transportation capability.</p> |
