Patent ID: 7874699

Claim:
A heat dissipating device for LED light-emitting module comprising: a plurality of fins configured in a radial arrangement, a composite mutual soldering of which forms a heat dissipating unit; a cavity enabling soldering thereto is configured center of the heat dissipating unit, and a through hole is defined center of the cavity, a cavity side wall of the cavity forms a linear side wall, and a bottom portion of the cavity forms a linear cavity wall; an LED light-emitting module, comprising: at least one or more than one light-emitting crystal connected to a baseplate; a heat dissipating base is provided with a holding space, and a heat conducting layer is packed into a connecting gap between a bottom surface of the holding space and a bottom surface of the baseplate and joined thereto, an outer surface of a bottom portion of the heat dissipating base is soldered to the linear horizontal cavity wall, and an outer peripheral surface of the heat dissipating base is soldered to the linear cavity side wall.