LED (light-emitting diode) road lamp improved from traditional road lamp

Abstract

The invention discloses an LED road lamp improved from a traditional road lamp featuring low cost, similar shape to the traditional road lamp and simple assembly and disassembly. The LED road lamp can be improved and maintained on site and has high installing efficiency. The LED road lamp comprises a housing assembly (100) of a traditional road lamp for containing light source; an opening is arranged at the bottom of the housing assembly (100); a plurality of clamping fixing devices are arranged in the housing assembly (100) around the opening; the LED road lamp further comprises an LED lightsource assembly (600) and an installing board (700); the installing board (700) is provided with a light outlet (701); the LED light source assembly (600) is fixedly connected on the installing board(700) and emits light through the light outlet (701); the light outlet (701) is matched with the opening in size and shape; and the installing board (700) is fixedly connected with the housing assembly (100) by the clamping fixing devices. The LED road lamp improved from the traditional road lamp can be widely applied to the fields of road lamps.

Description

technical field [0001] The invention relates to a street lamp, in particular to an LED street lamp transformed from a traditional street lamp. Background technique [0002] Street lamp is a common lamp. Traditional street lamps are generally halogen lamps such as sodium lamps, which have high power consumption, short life and low luminous efficiency. like figure 1 As shown, it is a schematic structural diagram of a conventional rear clamshell street lamp, and its lamp head part includes a housing assembly 100 , a reflector 200 , a sodium lamp power source 300 , a sodium lamp power source 400 , and a glass protective translucent cover 500 . LED has the advantages of high luminous efficiency, power saving and long life, and its application is more and more extensive, and LED street lamps have appeared at present. Due to the consideration of heat dissipation, the existing LED street lamps often have exposed heat sinks. Due to the small size of the LED itself, the overall volu...

AI Technical Summary

Problems solved by technology

However, for lamps with higher power such as street lamps, in order to further improve the heat dissipation effect, they are often made into an open structure, resulting in poor waterproof and dustproof effects, which limits their application in outdoor and special environments.

[0004] In addition, at present, thermally conductive silicone grease or thermally conductive insulating cloth is generally used between the light source board and the radiator for insulation and heat conduction. The thermal conductivity of thermally conductive silicone grease is 3W / (m·K)~4W / (m·K). The thermal conductivity of the cloth is 2W(m·K)~3W / (m·K). The thermal conductivity of the two is low, and the thermal conductivity is poor; It is difficult to apply thermally conductive silicone grease between the radiators evenly. On the one hand, it will lead to poor thermal conductivity, and on the other hand, it will reduce the insulation performance between the light source board and the radiator, and may even cause a short circuit between the two; Cloth-like, easy to change shape, it is difficult to evenly distribute the thermal insulation cloth between the light source board and the heat sink, and the installation is troublesome and the efficiency is low

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