Patent ID: 8038328
Filing Date: 2011-10-18
Classification: F21S,F21V,F21Y,Y10S

Abstract:
1. A light-emitting device pressure ring structure, comprising: a mounting base, said mounting base having an accommodation chamber defined therein and a center opening cut through a bottom wall of said accommodation chamber; a circuit board accommodated in said accommodation chamber inside said mounting base, said circuit board having a plurality of electrode pins electrically connectable to an external power source; a pressure ring unit, said pressure ring unit comprising a holder member mountable in said accommodation chamber inside said mounting base and defining therein a holding chamber, said holder member having a center opening corresponding to the center opening of said mounting base, and a pressure ring cap fastenable to said mounting base to hold down said holder member in said mounting base; a connection unit provided between an outside wall of said mounting base and an inside wall of said pressure ring cap for allowing fixation of said pressure ring cap to said mounting base; and a light-emitting unit fixedly mounted in said holding chamber of said holder member of said pressure ring unit, said light-emitting unit comprising a circuit substrate, a plurality of light-emitting devices mounted on said circuit substrate, a plurality of electrodes mounted in said circuit substrate and electrically connected with said light-emitting devices and electrically connectable to said electrode pins of said circuit board upon insertion of said holder member in said accommodation chamber inside said mounting base, and a heat sink fixedly provided at a bottom side of said circuit substrate and extending out of said holder member through the center opening of said holder member for suspending outside the center opening of said mounting base after insertion of said holder member in said accommodation chamber inside said mounting base.