Patent ID: 7878691
Filing Date: 2011-02-01
Classification: F21S,F21V,F21W,F21Y

Abstract:
1. An LED road lamp, comprising a heat dissipation module composed of circuit boards, LED chips and a cooling fin seat, to serve as a light emitting device of the LED road lamp, wherein the cooling fin seat is directly exposed in and is directly in contact with atmosphere for cooling; and a sealed power supply which supplies power to the circuit boards and the LED chips, wherein the heat dissipater module further includes a cooling substrate as a center, a front end of which is fixed at a lamp fixing seat that is connected to a transversal tube at a top end of a stand pipe through a tube connector; the cooling fin seat which is formed by welding a plurality of fins, to form an outer cover of the road lamp, with a bottom part of the cooling fin seat being welded on an upper surface of the cooling substrate; at least one outer surface of the circuit board, is welded with at least one LED chip, and which is fixed on a bottom board of the cooling substrate; and a light-permeable lamp shade which is installed below the circuit boards.