Patent ID: 8585249
Filing Date: 2013-11-19
Classification: F21K,F21V,F21Y

Abstract:
1. A lamp holder of an LED projection lamp, comprising a heat dissipation pipe, a heat dissipation fin unit, a heat dissipation tray, and a lampshade, wherein: the heat dissipation pipe has a plurality of insertion grooves around an outer circumferential wall thereof, and has a stepped protrusion formed on a front end thereof; the heat dissipation fin unit comprises a plurality of heat dissipation fins to be inserted in the insertion grooves on the outer circumferential wall of the heat dissipation pipe; the heat dissipation tray is in a disc-like shape and has a central hole corresponding to the stepped protrusion of the heat dissipation pipe; the lampshade is pervious to light, and is coupled to the heat dissipation tray; and the front end of the heat dissipation pipe is tightly connected with the heat dissipation tray by engaging the stepped protrusion of the heat dissipation pipe with the central hole of the heat dissipation tray to form an accommodation surface to accommodate a plurality of LED illumination units therein.