| 摘要 |
PURPOSE:To obtain the titled device having high heat dissipating effect by providing many fins mounted at the end side of a heat transfer unit and a side wall formed vertically to a side plate. CONSTITUTION:An insulating plate 7 is secured onto a heat sink 6 with insulating collars 11 and screws 12, a semiconductor element 8 is mounted on the plate 7, and a heat pipe 1 in which porous substance 3 immersed with water, Freon or alcohol therein and made of metal gauze or glass wool is engaged through the heat sink 6. Then, fins 5 held by a plurality of side plates 4 are engaged via central holes opened at the plates 4 with the peripheral surface of the pipe 1 at the part projected from the heat sink 6, and one lower ends of the plates 4 are secured via screws 9, 9' to a housing wall 10. Thereafter, side walls 13 are bonded to both ends of the side plates, a heat sink device is formed in a chimney shape with the plates 4 and the walls 13, and air guide holes 14 are opened at the side walls 13 to enhance the chimney effect. |
