Efficient radiating LED street lamp

Abstract

The invention discloses an efficient radiating LED street lamp. The efficient radiating LED street lamp comprises an LED lamp body and a radiating device which are installed on the two sides of a base correspondingly. The radiating device comprises radiating fins and a heat pipe, wherein each radiating fin is arranged to be in a U shape, and the tail ends of the two side surfaces of each radiating fin are inserted into the base; one end of the heat pipe is connected to the center of the base, and the other end of the heat pipe spirals up by a helix angle of being no less than 20 degrees and is in penetrating connection with the radiating fins. The heat pipe comprises an evaporator section, a heat insulation section and a condensation section in the spiral-up direction of the heat pipe in sequence, and the length ratio of the evaporator section to the heat insulation section to the condensation section is 2.2-3:1:2-2.7. According to the efficient radiating LED street lamp, the radiating requirements of high-power LED lamps can be effectively met, the junction temperature rise of the LED street lamp under the long time working condition is controlled to be not higher than 15 DEG C, the working stability of the LED street lamp is improved remarkably, and the service life of the LED street lamp is prolonged outstandingly.

Description

technical field [0001] The invention relates to the field of LED lighting. More specifically, the present invention relates to an efficient heat dissipation LED street lamp. Background technique [0002] As a solid light source, LED has been widely used in the field of lighting because of its energy saving, long life and no pollution. However, compared with traditional high-pressure sodium lamps and halogen lamps, LED lamps have poor heat resistance, and the working temperature cannot exceed 60°C, otherwise it will cause serious light decay and affect the service life of LED lamps. Therefore, the current theoretical life of LED lamps can reach more than 100,000 hours. Due to the problems of materials, manufacturing technology, and especially heat dissipation, the life of LED devices on the existing market generally can only reach 10,000 to 20,000 hours. [0003] At present, the LED light sources used in street lamps are divided into two types, one is an array distributed h...

AI Technical Summary

Problems solved by technology

Among them, lamps made of integrated high-power LED light sources have many advantages such as light weight, less packaging materials, small size, and easy installation. They are the future development trend of street lamps, but their temperature rise is also more concentrated and higher. , the problem of heat dissipation is also more prominent, which has become a key problem hindering the development of integrated high-power LED light sources

Images