CN103939816A - LED street lamp module provided with light transmitting cover with self-cleaning and scattering-preventing functions - Google Patents
LED street lamp module provided with light transmitting cover with self-cleaning and scattering-preventing functions Download PDFInfo
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- CN103939816A CN103939816A CN201410156813.XA CN201410156813A CN103939816A CN 103939816 A CN103939816 A CN 103939816A CN 201410156813 A CN201410156813 A CN 201410156813A CN 103939816 A CN103939816 A CN 103939816A
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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
The present invention relates to LED street lamp module, especially a kind of LED street lamp module with automatically cleaning anti-scatter function diffuser.
Background technology
Along with the development of semiconductor lighting technology,, there is substituting the trend of various traditional lighting light source products in the advantages such as LED has that light efficiency is high, the life-span is long, color is abundant, energy-conserving and environment-protective, reliability are high, easy regulation and control.For traditional high-pressure mercury lamp street lamp, due to LED small volume, can meet the more uniform hot spot distribution in road surface by scioptics, the utilization that improves luminous energy, therefore can reach the efficiency of light energy utilization and the uniformity higher than high-pressure mercury lamp; Due to the high light efficiency of LED, make it there is better energy-saving effect than high-pressure mercury lamp.
Organic Pollution in the permanent easy dust stratification of street lamp diffuser using or round atmosphere, causes that LED, lens, face shield etc. go mouldy, and these all will affect street lighting performance and life-span.Because street lamp installation is higher, and be distributed in each site of road, cleaning is wasted time and energy.Meanwhile, airborne steam, rainy day and plum rain season are easy to again condense on glass diffuser, can cause that diffuser surface hazes, dewfall, and the light that street lamp sends, by its scattering, reduces the light transmission efficiency of street lamp.For conventional high-tension sodium vapor lamp, because containing infrared light in high-pressure mercury lamp radiant energy, the water droplet on diffuser can be evaporated quickly; And for LED street lamp, because do not contain infrared light in radiant energy, diffuser hazes, dewfall phenomenon is comparatively serious.
Summary of the invention
The diffuser surface long term the object of the invention is in order to solve current LED street lamp uses easy dust stratification, easily hazes, dewfall under wet environment, causes light scattering, and light transmission efficiency declines, and cleans the problem of inconvenience and labor intensive material resources.Technical scheme of the present invention is as follows:
A kind of LED street lamp module with automatically cleaning anti-scatter function diffuser, comprise metallic cavity, large power white light LED, ultraviolet LED, free-form surface lens, the glass diffuser of radiator, driving power, placement LED and PCB, described glass diffuser surface scribbles hydrophilic or hydrophobic material or hydrophilic/hydrophobic builtup film, described metallic cavity is seal chamber, fills helium or neon inert gas or its mist in interior.
Further, described glass diffuser is made up of high borosilicate glass, reaches 91-92%, 350-390nm uv transmittance reaches 88-91% in whole visible light wave range transmitance, and described 350-390nm ultraviolet luminous energy is to the effect of hydrophilic/hydrophobic material production.
Further, the water wetted material that described glass diffuser surface is coated with is nano-titanium dioxide film, or the hydrophobic material being coated with is nano-silica/silicone resin film; Or scribble the hydrophilic/hydrophobic builtup film of silica/silicon resin/azobenzene; Rete quantity is sandwich construction.
Further, the method for coating of described nano titanium oxide, silica membrane is as follows:
(1) Nano titanium dioxide or SiO 2 powder and vinyl silanes alcohol are mixed into solution, again mixed solution is carried out to the mechanical lapping of 4-6 hour, the solution of output checks with electromotive force particle analyzer, obtains titanium dioxide or silica chemistry antecedent;
(2) synthetic titanium dioxide or silica antecedent are dropped into solution, and add emulsion, organic solvent, be mixed into dip-coating coating solution;
(3) glass diffuser is immersed to coating solution, within 10-300 second, lift taking-up;
(4) adopt ultra-violet curing technology that dip-coating coating solution is solidificated in to diffuser surface.
Further, described silicones/azobenzene film is to make and obtain by the method for spraying or spin coating, and film thickness is 10nm-3000nm.
Further, described nano-silica/silicone resin film forms the super-drainage structure of a trickle male-type, described trickle projection be with mold pressing method make and obtain, film thickness is 10nm-3000nm.
Further, described large power white light LED sends road lighting light, and colour temperature is 1700-6500K, comprises yellow-white, warm white, positive white, cold White LED; Free-form surface lens before large power white light LED is designed to the required batswing tab hot spot of road lighting; Ultraviolet LED sends the ultraviolet light that water wetted material film is produced to hydrophilic interaction, and wavelength is 350-390nm, bandwidth 16-25nm; The ultraviolet hot spot that free-form surface lens before ultraviolet LED the is designed to whole diffuser that throws light on; Ultraviolet LED is lighted 10-60 minute interval time by driving power timing every day.
Further, described nano-silica/silicone resin film has hydrophobicity, described glass diffuser surface is made into the trickle bulge-structure that is just of a size of 10nm-3000nm, in thin-film material, silica quality content is that 3-4%, silicones mass content are 7-8%, in use has the function of self-cleaning.
Further, described inert gas helium or neon or its mist, inner gas pressure is 1-2 atmospheric pressure.
Further, LED and PCB integral solder are in metallic cavity, and its lead-in wire seals by fluid sealant glue, and the described material in metal sealing chamber is aluminium or stainless steel, and radiator is equipped with at the back side, improve heat dispersion.Described radiator is fin slices radiator, or heat-pipe radiator, or the radiator of fin and heat-pipe radiator combination.
Novel LED street lamp module of the present invention has added part ultraviolet LED in street lamp LED light source, makes its timing determine interval and send ultraviolet light by automatically controlling driving power.Scribble nano titanium oxide hydrophilic film on the surface of diffuser, or nano-silica/silicone resin film hydrophobic film, or the hydrophilic/hydrophobic builtup film structure of silica/silicon resin/azobenzene, irradiate the next Superhydrophilic that has in ultraviolet ray, there is no to there is super-hydrophobicity under UV-irradiation.By these two kinds of character, reach the object of diffuser self-cleaning, anti-scatter.Meanwhile, in the sealing of street lamp module cavity, helium or neon or its mist that thermal conductivity factor is higher filled in inside, thereby improves the heat dispersion of LED street lamp, further improves Module Reliability.
Brief description of the drawings
Fig. 1 is the LED street lamp module structural representation with automatically cleaning anti-scatter function diffuser of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, the LED street lamp module with automatically cleaning, anti-scatter function diffuser of the present invention, is made up of metallic cavity 3, large power white light LED 4, ultraviolet LED 5, free-form surface lens 6, the glass diffuser 7 of radiator 1, driving power 2, placement LED and PCB.Radiator 1 and driving power 2 are positioned at the back side of metallic cavity 3, in large power white light LED 4 and ultraviolet LED 5 settings and metallic cavity 3, ultraviolet LED 5 is arranged between large power white light LED 4, free-form surface lens 6 is arranged on large power white light LED 4 and ultraviolet LED 5 outsides, glass diffuser 7 covering metal cavitys 3.
First in large power white light LED 4, add part ultraviolet LED 5, and automatically controlled by power supply, timing is determined interval and is sent ultraviolet light.In LED street lamp module, comprise the ultraviolet LED 5 that power accounts for the large power white light LED 4 of total LED power 90-98% and accounts for total LED power 2-10%, large power white light LED 4 sends road lighting light, colour temperature is 1700-6500K, and the free-form surface lens 6 before large power white light LED is designed to the required batswing tab hot spot of road lighting; Ultraviolet LED 5 sends water wetted material film is produced to the ultraviolet light of hydrophilic interaction, and wavelength is 350-390nm, bandwidth 16-25nm, the ultraviolet hot spot that the free-form surface lens before ultraviolet LED the is designed to whole diffuser that throws light on; Ultraviolet LED is lighted 10-60 minute interval time by driving power timing every day.
Glass diffuser 7 is made up of high borosilicate glass, reaches 91-92%, 350-390nm uv transmittance reaches 88-91% in whole visible light wave range transmitance.Described 350-390nm ultraviolet luminous energy is to the effect of hydrophilic/hydrophobic material production.Coat nano titanium oxide hydrophilic film at glass diffuser 7, or nano-silica/silicone resin hydrophobic film, or the hydrophilic/hydrophobic builtup film structure of silica/silicon resin/azobenzene.Nano-titanium dioxide film, azobenzene hydrophilic film, film thickness is 10nm-3000nm.On lampshade surface, be made into the nano-silica/silicone resin hydrophobic structure that height is of a size of the trickle projection of 10nm-3000nm, in thin-film material, silica quality content is that 3-4%, silicones mass content are 7-8%.In use there is the function of self-cleaning.
Be filled with inert gas helium or neon or its mist in inside, street lamp module metal sealing chamber, 1-2 atmospheric pressure.LED and PCB integral solder, in metallic cavity, finally become overall package LED street lamp module.
Of the present invention have the diffuser of automatically cleaning anti-scatter function, a LED street lamp module of high thermal conductivity, and the nano-silica/silicone resin film on glass diffuser 7 forms the super-drainage structure of a trickle male-type.Or the hydrophilic azobenzene group of silica/silicon resin/azobenzene builtup film is blocked, form the super-drainage structure of a trickle projection, so time diffuser or free-form surface lens surface there is super-hydrophobicity; And under the light-struck condition of ultraviolet LED, the nano-titanium dioxide film on diffuser, has infiltration effect, be zero degree to the contact angle of the liquid such as water; Or azobenzene tightens up body structure surface, hydrophobic grouping inside contracts, and hydrophilic radical is exposed at diffuser surface, and whole surface texture is level and smooth hydrophilic-structure; Therefore water trends towards coming at whole surface spreading, and diffuser has Superhydrophilic.Sprawl in the process that forms moisture film dust is taken away at water, simultaneously due to the effect of sprawling, condense upon surperficial water dew and sprawl, eliminate water and reveal scattering of light, improve light transmission efficiency.
The present invention has in the LED street lamp module of diffuser, high thermal conductivity of automatically cleaning anti-scatter function, has added part ultraviolet LED in light source, determines interval send ultraviolet light by power supply control timing.In the ordinary course of things, ultraviolet LED is not luminous, and the light that diffuser surface receives is visible ray.Now, their surface has super-hydrophobicity.Steam is in the time of surface condensation, because the super-hydrophobicity on surface, water droplet and surperficial active force are less, and and active force between dust larger.Therefore, water droplet is easy to come off together with surperficial dust.Super-hydrophobicity makes the surface of diffuser be difficult for hazing, and dust stratification is also comparatively difficult.
In the time that ultraviolet LED is luminous, the surface of diffuser, except being subject to radiation of visible light, is also subject to the irradiation of ultraviolet light.Now, their surface is Superhydrophilic.When hydrogenesis is in the time that their are surperficial, can sprawl and be distributed in diffuser surface, formation is flowed out along hydrophilic membrane edge compared with uniform moisture film, and moisture can be taken surface dirt out of.Now, surface does not haze equally, improves light transmittance.
By the effect of this surperficial Superhydrophilic-super-hydrophobicity, the diffuser of LED street lamp module of the present invention reaches the object of diffuser self-cleaning, anti-scatter.Thereby reach the object that improves LED street lamp light transmittance.
LED street lamp module is arranged in metal sealing cavity, and its lead-in wire seals by fluid sealant glue.The material in metal sealing chamber is aluminium or stainless steel, and fin is equipped with at the back side, improves heat dispersion.Inside, metal sealing chamber is filled with inert gas helium or neon or its mist with high thermal conduction characteristic, and inner gas pressure is 1-2 atmospheric pressure.Because the thermal conductivity factor of helium, neon is 0.1426W/mK and 0.0455W/mK left and right, be respectively thermal conductivity factor and be 6 times and nearly 2 times of 0.0233W/mK air.Both the derivation that had improved LED heating heat, can prevent again the pollution to LED, lens and inner surface in cavity such as aqueous vapor and haze.
The white light LEDs that LED street lamp module of the present invention uses is by blue light indium gallium nitrogen LED chip, and peak wavelength is 454nm, and bandwidth 22nm excites yellow Y
3al
5o
12: Ce fluorescent material, peak wavelength is 560nm, and bandwidth 114nm forms, and light source color temperature is 3600K, warm white; LED street lamp module has used 18 1W large power white light LEDs, the LED street lamp module of composition 20W.And added 4 0.2W ultraviolet LEDs in street lamp module inside, the peak wavelength of ultraviolet LED 5 is 390nm, bandwidth 21nm.White light, ultraviolet LED bright secretly by control system control.Glass diffuser 3 is made up of high borosilicate glass, has used the hydrophilic/hydrophobic combination three-layer thin-film structure of silica/silicon resin/azobenzene, gross thickness 900nm on diffuser; Wherein silica is bottom, thickness 400nm; Silicones is intermediate layer, thickness 350nm; Azobenzene is at top layer, thickness 150nm; Intermediate layer silicones mold pressing is made into the trickle projection that is just of a size of 50nm, forms nano-silica/silicone resin hydrophobic structure.
First by LED and PCB welding, then integral solder is in metallic cavity, then diffuser is installed, and then in metal sealing chamber, is filled with 1.5 atmospheric helium, and purity is 99%.Finally integral sealing is encapsulated into LED street lamp module.
Ultraviolet LED control system control ultraviolet LED is opened after 480 minutes at street lamp, opens 20 minutes, then closes.The street lamp that the present invention makes has reached good automatically cleaning, anti-scatter effect, and the temperature of module diffuser, than low 2 degree of the control group that does not fill helium, natural air, has improved heat dispersion simultaneously.Because street lamp is contained in eminence, uv power is little, and because of uviol lamp open the period more late, can omit pedestrian's impact.
Claims (10)
1. one kind has the LED street lamp module of automatically cleaning anti-scatter function diffuser, comprise metallic cavity (3), large power white light LED (4), ultraviolet LED (5), free-form surface lens (6), the glass diffuser (7) of radiator (1), driving power (2), placement LED and PCB, it is characterized in that: described glass diffuser (7) surface scribbles hydrophilic or hydrophobic material or hydrophilic/hydrophobic builtup film, described metallic cavity (3) is seal chamber, fills helium or neon inert gas or its mist in interior.
2. the LED street lamp module with automatically cleaning anti-scatter function diffuser according to claim 1, it is characterized in that: described glass diffuser (7) is made up of high borosilicate glass, reach 91-92% in whole visible light wave range transmitance, 350-390nm uv transmittance reaches 88-91%, described 350-390nm ultraviolet luminous energy is to the effect of hydrophilic/hydrophobic material production.
3. the LED street lamp module with automatically cleaning anti-scatter function diffuser according to claim 1, it is characterized in that: the water wetted material that described glass diffuser (7) surface is coated with is nano-titanium dioxide film, or the hydrophobic material being coated with is nano-silica/silicone resin film; Or scribble the hydrophilic/hydrophobic builtup film of silica/silicon resin/azobenzene; Rete quantity is sandwich construction.
4. the LED street lamp module with automatically cleaning anti-scatter function diffuser according to claim 3, is characterized in that: the method for coating of described nano titanium oxide, silica membrane is as follows:
(1) Nano titanium dioxide or SiO 2 powder and vinyl silanes alcohol are mixed into solution, again mixed solution is carried out to the mechanical lapping of 4-6 hour, the solution of output checks with electromotive force particle analyzer, obtains titanium dioxide or silica chemistry antecedent;
(2) synthetic titanium dioxide or silica antecedent are dropped into solution, and add emulsion, organic solvent, be mixed into dip-coating coating solution;
(3) glass diffuser (7) is immersed to coating solution, within 10-300 second, lift taking-up;
(4) adopt ultra-violet curing technology that dip-coating coating solution is solidificated in to diffuser surface.
5. the LED street lamp module with automatically cleaning anti-scatter function diffuser according to claim 3, is characterized in that: described silicones/azobenzene film is to make and obtain by the method for spraying or spin coating, and film thickness is 10nm-3000nm.
6. the LED street lamp module with automatically cleaning anti-scatter function diffuser according to claim 3, it is characterized in that: described nano-silica/silicone resin film forms the super-drainage structure of a trickle male-type, described trickle projection be with mold pressing method make obtain, film thickness is 10nm-3000nm.
7. the LED street lamp module with automatically cleaning anti-scatter function diffuser according to claim 1, it is characterized in that: described large power white light LED (4) sends road lighting light, colour temperature is 1700-6500K, comprises yellow-white, warm white, positive white, cold White LED; The front free-form surface lens of large power white light LED (4) is designed to the required batswing tab hot spot of road lighting; Ultraviolet LED (5) sends the ultraviolet light that water wetted material film is produced to hydrophilic interaction, and wavelength is 350-390nm, bandwidth 16-25nm; The ultraviolet hot spot that free-form surface lens before ultraviolet LED the is designed to whole diffuser that throws light on; Ultraviolet LED is lighted 10-60 minute interval time by driving power timing every day.
8. the LED street lamp module with automatically cleaning anti-scatter function diffuser according to claim 6, it is characterized in that: described nano-silica/silicone resin film has hydrophobicity, described glass diffuser (7) surface is made into the trickle bulge-structure that is just of a size of 10nm-3000nm, in thin-film material, silica quality content is that 3-4%, silicones mass content are 7-8%, in use has the function of self-cleaning.
9. the LED street lamp module with automatically cleaning anti-scatter function diffuser according to claim 1, is characterized in that: described inert gas helium or neon or its mist, inner gas pressure is 1-2 atmospheric pressure.
10. the LED street lamp module with automatically cleaning anti-scatter function diffuser according to claim 1, it is characterized in that: LED and PCB integral solder are in metallic cavity (3), its lead-in wire seals by fluid sealant glue, the described material in metal sealing chamber is aluminium or stainless steel, radiator (1) is equipped with at the back side, improves heat dispersion;
Described radiator is fin slices radiator, or heat-pipe radiator, or the radiator of fin and heat-pipe radiator combination.
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| CN201410156813.XA CN103939816B (en) | 2014-04-18 | 2014-04-18 | LED street lamp module provided with light transmitting cover with self-cleaning and scattering-preventing functions |
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| CN201410156813.XA CN103939816B (en) | 2014-04-18 | 2014-04-18 | LED street lamp module provided with light transmitting cover with self-cleaning and scattering-preventing functions |
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Cited By (6)
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| CN105276458A (en) * | 2015-11-23 | 2016-01-27 | 苏州汉克山姆照明科技有限公司 | LED (light-emitting diode) lawn lamp for football field |
| CN106838845A (en) * | 2017-01-24 | 2017-06-13 | 维沃移动通信有限公司 | A kind of terminal flash lamp design and mobile terminal |
| CN107880302A (en) * | 2017-12-19 | 2018-04-06 | 中物院成都科学技术发展中心 | A kind of patterned polymer and preparation method thereof |
| CN109163240A (en) * | 2018-09-10 | 2019-01-08 | 天津大学 | Nano-energy-saving desk lamp holder |
| CN109903689A (en) * | 2019-03-13 | 2019-06-18 | 深圳市洲明科技股份有限公司 | LED display and preparation method thereof |
| CN111609558A (en) * | 2020-05-15 | 2020-09-01 | 华帝股份有限公司 | Method for preventing water pipe from being corroded and water heater using same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105276458A (en) * | 2015-11-23 | 2016-01-27 | 苏州汉克山姆照明科技有限公司 | LED (light-emitting diode) lawn lamp for football field |
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| CN111609558A (en) * | 2020-05-15 | 2020-09-01 | 华帝股份有限公司 | Method for preventing water pipe from being corroded and water heater using same |
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Effective date of registration: 20141022 Address after: Hangzhou City, Zhejiang province 310018 Xiasha Higher Education Park source Street No. 258 Applicant after: China Jiliang University Applicant after: Ningbo Liaoyuan Lighting Co., Ltd. Address before: Hangzhou City, Zhejiang province 310018 Xiasha Higher Education Park source Street No. 258 Applicant before: China Jiliang University Applicant before: NINGBO LIAOYUAN LIGHTING CO., LTD. |
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Effective date of registration: 20180425 Address after: 310018 Xue Yuan Street, Jianggan District, Hangzhou, Zhejiang Province, No. 258 Co-patentee after: Ningbo Liaoyuan Lighting Group Co., Ltd. Patentee after: China Jiliang University Address before: 310018 No. 258, Xue Yuan Street, Xiasha Higher Education Park, Hangzhou, Zhejiang Co-patentee before: Ningbo Liaoyuan Lighting Co., Ltd. Patentee before: China Jiliang University |
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Address after: 310018 Xue Yuan Street, Jianggan District, Hangzhou, Zhejiang Province, No. 258 Co-patentee after: Ningbo Liaoyuan Lighting Group Co., Ltd. Patentee after: CHINA JILIANG UNIVERSITY Address before: 310018 Xue Yuan Street, Jianggan District, Hangzhou, Zhejiang Province, No. 258 Co-patentee before: Ningbo Liaoyuan Lighting Group Co., Ltd. Patentee before: China Jiliang University |
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