| 摘要 |
The present invention relates to a heat radiation device of lighting device. The heat radiation device of lighting device comprises passive heat radiator and mounting assembly, the passive heat radiator includes: a heat radiating base plate; a slablike upstanding plate, the slablike upstanding plate is a solid plate of metal material; a heat absorbing ending face disposed at one side of the heat radiating base plate deviated from the upstanding plate, and adapted to mount luminous chip of the lighting device; heat radiating fins connected to a surface of the slablike upstanding plate, the heat radiating fins are of hollow cubic tubular structure; the heat radiating base plate of the passive heat radiator is connected with the mounting assembly. The present invention adopts upstanding plate which substantially perpendicular with the horizontal plane and heat radiating fins of hollow cubic tubular structure, improves heat radiating effect. |
| 主权项 |
1. A heat radiation device for a lighting device, comprising a passive heat radiator and a mounting assembly, wherein:
the passive heat radiator comprises: a heat radiating base plate provided with a heat absorbing ending face, a housing connected to the heat radiating base plate, and heat radiating fins connected to the housing, wherein the heat absorbing ending face is disposed at one side of the heat radiating base plate deviated from the housing, and adapted to mount a luminous chip of the lighting device; the housing comprises: a slablike upstanding plate, defining a cavity and connected to the heat radiating base plate, wherein the cavity is under vacuum and is filled with liquid working substance having heat evaporation characteristics; a wick, disposed in the cavity, and at least a portion of the wick is impregnated with the liquid working substance; a supporting element, disposed in the cavity, adapted to eliminate deformation due to pressure on the housing generated by external atmosphere and evaporation of the liquid working substance; a side edge of the heat radiating base plate is connected with the mounting assembly. |
