Patent ID: 8339020
Filing Date: 2012-12-25
Classification: F21K,F21V,F21Y

Abstract:
1. A heat dissipating device for lightings, comprising: a light source module, having at least one light source; a heat sink, having a plurality of heat dissipating fins and a connecting section, wherein the connecting section has a top surface connected to bottom edges of the heat dissipating fins and a bottom surface connected to the light source module, wherein a plurality of channels is formed between the heat dissipating fins, wherein the channels respectively having a port formed at an inner side thereof; and a converter, having one end extended among the heat dissipating fins and connected to the connecting section of the heat sink; wherein at least one of the heat dissipating fins has an inner edge adjacent to and disconnected from the converter; wherein a gap is formed between the inner edge of the heat dissipating fins and an outer surface of the converter to define a ring-shaped air passage, the air passage communicates with the ports of the channels between the heat dissipating fins.