Integral heat dissipation LED road lamp

Abstract

The invention discloses an LED street lamp, with the purpose of providing an integrated heat radiating LED street lamp which has good heat radiation effect, and prolongs the service life effectively. The invention comprises a metal rear cover (1), a base plate (2), a non light tight front cover (6), and a plurality of LEDs (7), wherein, a plurality of LEDs (7) are installed in the base plate (2), and are arranged in the cavity surrounded by the rear cover (1) and the front cover (6) together with the base plate (2), a heat radiator is arranged between the base plate (2) and the rear cover (1), the heat radiator comprises a heat conducting back plate (3), a plurality of heat conducting ribs (4), wherein, the heat conducting back plate (3) and the inner surface of the rear cover (1) contact tightly and have adaptive shapes, and the upper part and the lower part of the heat conducting ribs (4) are respectively connected with the back plate (3) and the base plate (2). The invention can be widely applied to the outdoor illumination field.

Description

Technical field [0001] The invention relates to an integrated heat dissipation LED street lamp. Background technique [0002] The energy consumption in the lighting field accounts for about 20% of the total electric energy, while only 30% of the electric energy of ordinary lamps is used to emit light, and the rest is converted into heat energy and emitted to the outside world. LED is regarded as a cold light source because of its low heat generation and high luminous efficiency. LED street lights are composed of substrates with LEDs, lenses, and heat dissipation systems. Compared with traditional incandescent lamps and fluorescent lamps, its power saving efficiency can reach more than 90%. Since its birth, it has received more and more attention from countries all over the world for its high efficiency, low consumption, energy saving, environmental protection, and long life. my country currently uses nearly 250 billion kilowatt-hours of electricity for street lighting every year....

AI Technical Summary

Problems solved by technology

However, the internal space of the lampshade is closed and limited, and effective convection cannot be formed, and the heat transfer coefficient of the air is low. Therefore, this kind of LED street lamp only dissipates heat from the LED to the heat sink quickly, and dissipates heat from the heat sink to the outside very slowly, so it cannot adapt to street lights. long-term work requirements

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