Patent ID: 8154179
Filing Date: 2012-04-10
Classification: F21K,F21V,F21Y

Abstract:
1. A light emitting diode (LED) lamp having a replaceable light source module, comprising: an insulation body being hollow, and having a first end provided with a first installation portion which has at least two first electrically conductive elements, wherein the LED lamp receives an electric power via the first electrically conductive elements, and the insulation body further having a second end provided with a second installation portion which has at least two second electrically conductive elements, wherein the second electrically conductive elements are electrically connected to the first electrically conductive elements, respectively; a heat dissipation element sleeved on an outer periphery of the second end of the insulation body, and formed with a plurality of heat dissipation fins; and a light source module including at least one LED, a printed circuit board, a heat dissipation plate and a third installation portion, wherein each said LED is mounted on a lower surface of the printed circuit board, a lower surface of the heat dissipation plate being connected to an upper surface of the printed circuit board, and the third installation portion being provided with at least two third electrically conductive elements, wherein the printed circuit board is electrically connected to the third electrically conductive elements via at least two power wires passing through the heat dissipation plate, respectively, so that each said LED receives the electric power supplied by an external lamp holder through the printed circuit board, the third electrically conductive elements, the second electrically conductive elements, and the first electrically conductive elements in turn, while a portion of an upper surface of the heat dissipation plate close to a peripheral edge thereof is attached to the heat dissipation element.