Windproof LED street lamp

Abstract

A windproof LED street lamp comprises a lamp pole and a lamp holder arranged on the lamp pole. A mounting groove is formed in the face, away from a substrate, of the lamp holder, and a heat radiator is arranged in the mounting groove. The heat radiator comprises a heat radiator body, cooling fins connected with the outer wall of the heat radiator body and a heat transfer column connected with the inner wall of the heat radiator body. The heat radiator body is a barrel with a sealed end, and a clearance capable of containing the cooing fins is formed between the heat radiator body and the mounting groove. The cooling fins are metal elastic fins, a motor is arranged at the position, on the edge of the mounting groove, of the lamp holder, and the motor is connected with a connecting hole and used for driving the heat radiator body to rotate. According to the windproof LED street lamp, when the windproof LED street lamp works, the cooling fins are located outside the clearance between the mounting groove and the heat radiator body, therefore, the heat of the substrate can be emitted through the cooling fins, and heat radiation efficiency can be improved. When the windproof LED street lamp does not work, the cooling fins are contracted into the clearance, the area of the windproof LED street lamp can be reduced, and therefore the wind preventing function is achieved, and then the safety of the windproof LED street lamp is improved.

Description

technical field [0001] The invention relates to an LED lamp, in particular to a windproof LED street lamp. Background technique [0002] LED (Light Emitting Diode), that is, semiconductor electric light source, light-emitting diode, also known as semiconductor lamp, is a kind of electric light source without filament, which directly converts electrical energy into light energy. [0003] LED street lamps have the characteristics of energy saving and long life, avoiding the trouble of changing bulbs frequently, and are favored by more and more users. However, the heat dissipation and safety issues of LED street lamps are also key issues. The heat dissipation problem seriously affects the light efficiency and life of LED light sources. In order to improve safety, traditional LED street lights use radiators with small heat dissipation areas, or even do not use radiators, resulting in low heat dissipation efficiency of LED street lights, resulting in high temperature of LED ligh...

AI Technical Summary

Problems solved by technology

However, the heat dissipation and safety issues of LED street lamps are also key issues. The heat dissipation problem seriously affects the light efficiency and life of LED light sources.

In order to improve safety, traditional LED street lights use radiators with a small heat dissipation area, or even do not use radiators, resulting in low heat dissipation efficiency of LED street lights, resulting in high temperature of LED light sources, which affects the light efficiency and life of LED street lights

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