| 摘要 |
The present invention relates to a heat sink for a lighting device, including a plurality of heat sink units, a first fixing plate, a second fixing plate, and a coupling member. The heat sink units are plate-shaped, and are sequentially arrayed in the thickness direction of each heat sink unit to collectively form a barrel shape having a hollow interior. Both sides of each heat sink unit, corresponding to the upper and lower ends of the barrel shape, are provided with a first coupling part and a second coupling part, respectively. The first and second coupling parts either a recess or a protrusion. The first fixing plate includes a third coupling part coupled to each first coupling part, and is coupled to the upper end of the barrel shape. The second fixing plate includes a fourth coupling part coupled to the second coupling part, and is coupled to the lower end of the barrel shape. The coupling member fastens the first and second fixing plates together, the shape of the hollow interior being maintained such that the heat sink units reliably maintain the barrel shape. Accordingly, the assembly and disassembly of the heat sink is facilitated, the barrel shape is reliably maintained without reinforcements, and cool air efficiently circulates to maximize heat dissipation efficiency. |
