CN2393220Y

CN2393220Y - Self-cleaning lighting lamp

Info

Publication number: CN2393220Y
Application number: CN 99240776
Authority: CN
Inventors: 陈非力; 王良焱; 朱春媚; 郑少健; 黄琮; 冯满枝; 杨宝山
Original assignee: Guangzhou Institute of Energy Conversion of CAS
Current assignee: Guangzhou Institute of Energy Conversion of CAS
Priority date: 1999-11-17
Filing date: 1999-11-17
Publication date: 2000-08-23
Anticipated expiration: 2009-11-17

Abstract

The utility model relates to a self-cleaning lighting lamp, particularly a self-cleaning lighting street lamp. The utility model is characterized in that the surface of a glass component (the exterior surface of a luminaire glass casing or a glass lamp shade) arranged on the lighting lamp is combined with one layer of photocatalysis film, crystal structure of which is anatase type TiO [2]. The utility model uses weak ultraviolet radiation emitted by the luminaire and ultraviolet radiation in the sunlight as the excitation light source of a photocatalytic reaction. Various organic exhaust gases arranged near the surface of the luminaire glass casing or the glass lamp shade can be degraded by photocatalytic oxidation. Contamination, such as dust can not be accumulated at the surface of the glass, the purposes self-cleaning dirt on the surface of the lighting lamp and enhancing the lighting effect of the luminaire can be obtained.

Description

From clean lighting

The utility model relates to a kind of lighting, particularly illuminating street lamp.

Ligthing paraphernalia, especially street lighting utensil, in use, because environmental factor, various dunghills are coverd with on its surface easily, as various street lighting utensils, mainly be since the tail gas (main component is an organic substance) of the engine ejection of the vehicles such as automobile to the pollution of lamp surface.When organic substance attached to the ligthing paraphernalia surface on after; they just are equivalent to binding agent; make the granule dust of various inorganic matter compositions sticking thereupon attached on these ligthing paraphernalia surfaces; add heat energy and electronic induction effect that ligthing paraphernalia sends; can make these granule dust over time firm stick to the ligthing paraphernalia surface, cause the luminous flux loss of these ligthing paraphernalias.We at ordinary times if carefully observe one get down the highway or the tunnel in street lamp, will find to have one deck black dirt on the glass clamshell surface of street lamp, the illuminating effect that street lamp is not reached, be difficult with artificial often its surface filth of periodic cleaning, particularly the high pole street lamp that 20--30 rice is high more is difficult to accomplish.

The purpose of this utility model be propose a kind of have stop filthy lamp surface form ability from clean lighting, to solve the existing problem of above-mentioned existing light fixture.

The technical scheme that the utility model adopted, be the surface combination of the glass material parts on light fixture one deck crystal structure is arranged is the TiO photocatalzed film of anatase titanium dioxide, the thickness of this photocatalzed film is below 50nm.

Glass material parts on the said light fixture can be the glass bulbs of lamp light source, also can be the glass material lampshades of light fixture.Photocatalzed film described in the utility model can cover the outer surface of lamp light source glass bulb; Described photocatalzed film also can be covered in the outer surface of fitting glass lampshade.

The utility model mainly is to utilize the photochemical catalytic oxidation philosophy and technique, utilize light source, particularly glow discharge spot lamp itself sent faint ultra-violet radiation and the ultra-violet radiation in the daytime sight be the excitation source of light-catalyzed reaction, photocatalytic oxidation degradation is at the various organic compounds (mainly being vehicle exhaust) of light source glass shell or glass lamp shade near surface, make it to adhere to the glass surface of light fixture, thereby make these glass surfaces can not accumulate pollutants such as dust, reach and reduce even the filthy factor that causes luminous flux to reduce of elimination.

For improving the effect of photochemical catalytic oxidation, the light source glass bulb of light fixture and glass lamp shade preferably adopt simultaneously has the to a certain degree glass material of saturating ultraviolet radiation characteristic at ultraviolet A and ultraviolet B wave band; Be combined in the TiO on the glass surface ₂The crystal formation of photocatalysis membrana is preferably anatase titanium dioxide, can use sol-gel process with this TiO ₂Photocatalysis membrana is attached to the surface of the glass component of said light fixture, and the thickness of film is got over Bao Yuehao, so that its transmitance at visible light wave range is high as far as possible.

The utility model adopts outer surface at the light shell outer cover of light fixture or its glass matching component in conjunction with this simple measures of one deck photocatalysis membrana, can reach automatic removing lighting, the particularly lip-deep filth of street lamp, improve the light efficiency of light source, improve the luminous flux of the actual output of street lamp device, improve the capacity usage ratio of street lamp, reduce the maintenance of street lamp device and the purpose of management cost, have good real economy and social effect.

Fig. 1 is a kind of schematic diagram from clean road lamp;

Fig. 2 is the structure enlarged diagram of the A portion of Fig. 1;

Fig. 3 and Fig. 4 are respectively two kinds of schematic diagrames from clean road lamp in addition.

Below in conjunction with accompanying drawing execution mode of the present utility model is described in further detail:

Embodiment one

The light fixture of present embodiment should be a high-pressure mercury-vapor lamp from the light source of clean street lamp as shown in Figure 1, and 1 is lamp socket, and 2 is the light source glass bulb of this high-pressure mercury-vapor lamp, and the outer surface of this glass bulb is coated with one deck anatase titanium dioxide TiO ₂Photocatalysis membrana 3 (as shown in Figure 2), this anatase titanium dioxide TiO ₂The thickness of photocatalysis membrana is 30nm.

Embodiment two

The light fixture of present embodiment as shown in Figure 3,1 is lamp socket, 4 is the light source body, 5 is glass lamp shade, is coated with one deck anatase titanium dioxide TiO at the outer surface of glass lamp shade 5 ₂Photocatalysis membrana constitutes from clean road lamp.

Embodiment three

The light fixture of present embodiment as shown in Figure 4,1 is lamp socket, 4 is the light source body, 5 is glass lamp shade, the upper cover of 6 light fixtures is coated with an anatase titanium dioxide TiO at the outer surface of glass lamp shade 5 ₂Photocatalysis membrana constitutes from clean road lamp.

Claims

1. one kind from clean lighting, and it is the TiO of anatase titanium dioxide that the surface combination that it is characterized in that the glass material parts on the light fixture has one deck crystal structure ₂Photocatalzed film, the thickness of this photocatalzed film is below 50nm.

2. described from clean lighting by claim 1, it is characterized in that described photocatalzed film is covered in the outer surface of light source glass bulb.

3. described from clean lighting by claim 1, it is characterized in that described photocatalzed film is covered in the outer surface of glass lamp shade.