Multiple energy-saving road lamp

Abstract

A multiplex energy-saving street lamp comprises a light source, wherein the light source is provided in an enclosed inner cavity, the inner cavity is provided with a through-hole for in and out of electric wire, a metal sealing cap is provided at the joint site of the through-hole for in and out of electric wire and the inner cavity, the inner cavity comprises a multi-curved surface reflecting mirror that is provided at the upper part of the light source and integrated with the housing and a transmitting beam splitter mirror that is provided at the lower part of the light source; the inner cavity is filled with heat-conducting inert gas; the light source is high voltage sodium lamp with luminous efficiency no less than 150 lm / w and color temperature no less than 2,100 K or metal halide lamp with luminous efficiency no less than 120 lm / w and color temperature no less than 6,000 K; and the housing is made of glass. The invention has an integrated design to make the light energy fully projected to the required region, and adopts total reflection and total transmission technique under sealing and protective gas atmosphere so as to avoid light energy loss of optical elements. The consumed power is reduced by around 50 percent. And, the invention realizes maximal photoelectric conversion by changing heat-conduction coefficient, decreasing light source pipe surface temperature and reducing pipe wall pressure; and has good market prospect.

Description

technical field [0001] The invention relates to lighting appliances, in particular to multiple energy-saving street lamps. Background technique [0002] In the prior art, street lamps have the following defects: [0003] 1. The luminous efficiency of the light source is low. Due to the use of light sources such as incandescent lamps, halogen lamps, mercury lamps, metal halide lamps, and ordinary sodium lamps, the luminous efficiency is low. The efficiency of incandescent lighting is below 10lm / W, that of halogen lighting is below 20lm / W, that of mercury lamps is around 40lm / W, that of metal halide lamps and ordinary sodium lamps is around 80lm / W, and that the photoelectric conversion rate is low. [0004] 2. The utilization rate of light energy is low. The current road lighting all use metal reflectors for light reflection. Due to the smoothness and reflectivity of the material itself, the reflected light has not been scientifically designed, and the limited light energy ...

AI Technical Summary

Problems solved by technology

[0003]1. Low luminous efficiency of light source

Due to the use of light sources such as incandescent lamps, halogen lamps, mercury lamps, metal halide lamps, and ordinary sodium lamps, the luminous efficiency is low

The efficiency of incandescent lighting is below 10lm / W, that of halogen lighting is below 20lm / W, that of mercury lamps is around 40lm / W, that of metal halide lamps and ordinary sodium lamps is around 80lm / W, and that the photoelectric conversion rate is low

[0004]2. Low utilization rate of light energy

The current road lighting all use metal reflectors for light reflection. Due to the smoothness and reflectivity of the material itself, the reflected light has not been scientifically designed, and the limited light energy is also absorbed by two layers of glass, so it is really projected to the needs. The proportion of light energy on the illuminated road is not high, and under the combined action of air, water and water vapor, dust, acid gas, etc., the reflectivity of the reflector of the street lamp and the transmittance of the protective glass decrease rapidly as time goes by. , after using for a period of time, the street lamps are generally gray, which affects the lighting

[0005]3. High energy consumption

Because the light efficiency of the light source is not high and the light energy utilization rate is low, and the illumination of the road lighting must reach 30LX, only high-power street lights can be used, generally 400W, 600W or higher power street lights are used, and the power consumption of the street light itself is large. , the sum of the two makes the current energy consumption of street lamps remain high, which is contrary to the concept of "energy saving" advocated by today's society

[0006]4. Too many consumables

Due to the high power, large transmission lines and high-power related electrical appliances must be used, which wastes resources and costs high

[0007]5. Short life span

At present, the service life of street lamps is generally less than 1500 hours for incandescent lamps, and about 8000 hours for mercury lamps and ordinary sodium lamps. This is mainly due to the limitation of the life of the light source.

[0008] In summary, street lamps in the prior art generally have low light source luminous efficiency, low light energy utilization rate, large energy consumption, many consumables, short life, and low cost. advanced defects

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