LED street light module with self-cleaning anti-scattering cover

Abstract

The invention discloses an LED street lamp module provided with a light transmitting cover with the self-cleaning and scattering-preventing functions. The LED street lamp module is composed of a heat sink (1), a driving power supply (2), a metal cavity (3), a high-power white-light LED (4), an ultraviolet LED (5), a free-form surface lens (6) and the glass light transmitting cover (7), wherein the LEDs and a PCB are placed in the metal cavity (3). The LEDs and the PCB are arranged in the cavity, the end face of the cavity and the light transmitting cover constitute a sealed cavity through sealants, the sealed cavity is filled with helium or neon inert gases or other mixed gases, high thermal conductivity is achieved, and water vapor or haze is prevented from polluting the LEDs and the lens in the sealed cavity. The surface of the light transmitting cover is coated with a hydrophilic or hydrophobic or hydrophilic / hydrophobic combined thin film, hydrophilic spreading is conducted under ultraviolet irradiation, dust and scattered water drops on the surface of the light transmitting cover are removed, the dust on the surface of the light transmitting cover is brought away under the hydrophobic effect when no ultraviolet light exists, and high light transmission of the LED street lamp module is kept.

Description

technical field [0001] The invention relates to an LED street lamp module, in particular to an LED street lamp module with a self-cleaning and anti-scattering light transmission cover. Background technique [0002] With the development of semiconductor lighting technology, LED has the advantages of high luminous efficiency, long life, rich colors, energy saving and environmental protection, high reliability, easy regulation, etc., and it has become a trend to replace various traditional lighting source products. Compared with the traditional high-pressure sodium lamp street lamp, due to the small size of the LED, the lens can be used to meet the uniform distribution of light spots on the road surface and improve the utilization of light energy. Therefore, it can achieve higher light energy utilization and uniformity than high-pressure sodium lamps. ; Due to the high light efficiency of LED, it has better energy-saving effect than high-pressure sodium lamp. [0003] The long...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the surface of the light-transmitting cover of the current LED street lamp is easy to accumulate dust after long-term use, and it is easy to fog and condense in a humid environment, resulting in light scattering and a decrease in light transmission efficiency, which is inconvenient to clean and consumes manpower and material resources.

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