Patent ID: 8562181
Filing Date: 2013-10-22
Classification: F21K,F21V,F21Y

Abstract:
1. A light emitting diode (LED) bulb, comprising: a heat sink comprising a component receiving surface, a plurality of fastening through holes, and a plurality of positioning through holes, the fastening through holes and the positioning through holes disposed on the component receiving surface; an insulator cover disposed on the heat sink and having an opening, the insulator cover comprising a plurality of hooking parts and a plurality of terminal receptacles, the hooking parts and the terminal receptacles protruding from a surface of the insulator cover, each of at least some of the hooking parts configured to be engaged with a respective one of the fastening through holes and each of at least some of the terminal receptacles configured to pass through a respective one of the positioning through holes to be engaged with the respective positioning through hole such that the insulator cover is affixed to the heat sink, each of at least some of the terminal receptacles respectively having a terminal receptacle through hole; a light emitting device package disposed on the component receiving surface of the heat sink and having a plurality of driving electrodes, the light emitting device package disposed between the insulator cover and the heat sink, the light emitting device package affixed to the insulator cover with the opening of the insulator cover exposing a portion of the light emitting device package; a plurality of conductive terminals respectively disposed in the terminal receptacle through holes of the terminal receptacles, the conductive terminals extending outwardly and in physical contact with the driving electrodes of the light emitting device package; a driving circuit that outputs a current signal to drive the light emitting device package, the driving circuit comprising a plurality of upper conductive rods and a plurality of lower conductive rods, the upper conductive rods in physical contact with the conductive terminals; a holder comprising a holding protrusion, the holder configured to be assembled to the heat sink via the holding protrusion; a screw thread coupled to the holder and comprising a screw thread through hole, the screw thread electrically connected to a first one of the lower conductive rods; and an electrode disposed in the screw thread through hole and electrically connected to a second one of the lower conductive rods.