Patent ID: 8313220
Filing Date: 2012-11-20
Classification: F21V,F21Y

Abstract:
1. A light emitting diode (LED) lighting fixture comprising: a lamp housing including a heat conductive cover, and a light transmissive shield connected detachably to a periphery of said heat conductive cover to define a compartment therebetween; a base seat disposed in said compartment of said lamp housing; an LED lamp device mounted on said base seat; and a first heat conductive unit disposed in said compartment, said first heat conductive unit including at least one first heat conductive pipe and a heat conductive medium flowing within said first heat conductive pipe due to a change between a liquid state and a gaseous state thereof, said first heat conductive pipe including a heat exchange portion that absorbs heat generated by said LED lamp device, and a heat-dissipating portion that conducts heat absorbed by said heat exchange portion to said heat conductive cover of said lamp housing; wherein said heat conductive cover includes a cover body, and at least one first heat conductive seat mounted fixedly on an inner surface of said cover body, said heat-dissipating portion of said first heat conductive pipe being inserted into said first heat conductive seat; and wherein said first heat conductive seat includes an upper heat conductor connected fixedly to said inner surface of said cover body, and a lower heat conductor connected detachably to said upper heat conductor, said heat-dissipating portion of said first heat conductive pipe being inserted between said upper heat conductor and said lower heat conductor of said first heat conductive seat, said heat exchange portion of said first heat conductive pipe being in contact with said base seat.