| 摘要 |
PROBLEM TO BE SOLVED: To provide a lightweight heat radiation member excellent in heat radiation.SOLUTION: A heat radiation member 1, wherein a metal plate 10 corrugated by being bent along a plurality of bending starting point lines 11 is arranged to have a whole shape in a cylindrical shape while the bending starting point lines 11 are aligned in an axial direction, has a plurality of fins 13 radially arranged in a radial direction of the cylindrical shape, with neighboring fins 13 connected with each other at an inner peripheral side 101 and an outer peripheral side 102 of the cylindrical shape. The heat radiation member 1 of the cylindrical shape has a joining end 12 on its one end 115 in an axial direction X, and is used by joining a joining end 12 side with a heat generation member. |
