CN103939816B - 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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- CN103939816B CN103939816B CN201410156813.XA CN201410156813A CN103939816B CN 103939816 B CN103939816 B CN 103939816B CN 201410156813 A CN201410156813 A CN 201410156813A CN 103939816 B CN103939816 B CN 103939816B
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- street lamp
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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 mould with automatically cleaning anti-scatter function diffuser
Block.
Background technology
With the development of semiconductor illumination technique, LED has light efficiency height, life-span length, various colors, energy-conserving and environment-protective, reliability
Property it is high, the advantages of easily regulate and control, occur the trend for substituting various conventional illumination sources products.Relative to traditional high-pressure mercury lamp
For street lamp, due to LED small volumes, the more uniform hot spot distribution in road surface can be met by lens, improve the profit of luminous energy
With, therefore the efficiency of light energy utilization and uniformity higher than high-pressure mercury lamp can be reached；Due to the specular removal of LED so that it is than high
Pressure sodium lamp has more preferable energy-saving effect.
The easy dust stratification of street lamp diffuser that uses for a long time or by Organic Pollution in air, causes LED, lens, mask etc.
Go mouldy, these will all affect street lighting performance and life-span.Because street lamp installs higher, and each site of road is distributed in, clearly
Washing wastes time and energy.Meanwhile, the vapor, rainy day and plum rain season in air is easy to be condensed in glass transmission cover again, can cause
Diffuser surface hazes, condenses, and the light that street lamp sends is scattered, reduces the light transmission efficiency of street lamp.To conventional high-tension sodium vapor lamp
Speech, because containing infrared light in high-pressure mercury lamp radiation energy, the water droplet on diffuser can be evaporated quickly；And for LED street lamp
For, because not containing infrared light in radiation energy, diffuser hazes, dew condensation phenomenon is more serious.
The content of the invention
The invention aims to the diffuser surface long term for solving current LED street lamp uses easy dust stratification, in humidity
Easily haze under environment, condense, cause light to scatter, light transmission efficiency declines, and clean the problem of inconvenience and labor intensive material resources.
Technical scheme is as follows：
A kind of LED street lamp module with automatically cleaning anti-scatter function diffuser, including radiator, driving power supply, placement
The metallic cavity of LED and PCB, large power white light LED, ultraviolet LED, free-form surface lens, glass transmission cover, the glass transmission
Cover surface scribbles hydrophilic or hydrophobic material or hydrophilic/hydrophobic builtup film, and described metallic cavity is seal cavity, it is interior in fill
Helium or neon noble gases or its mixed gas.
Further, the glass transmission cover is made up of high borosilicate glass, is reached in whole visible light wave range transmitance
91-92%, 350-390nm uv transmittance reaches 88-91%, and the ultraviolet luminous energy of described 350-390nm is produced to hydrophilic/hydrophobic material
Raw effect.
Further, the water wetted material that the glass transmission cover surface applies is nano-titanium dioxide film, or apply it is hydrophobic
Material is nano-silica/silicone resin film；Or scribble silica/silicon resin/diphenyl diimide hydrophilic/hydrophobic combination it is thin
Film；Film layer quantity is multiple structure.
Further, the nano titanium oxide, silica membrane method for coating it is as follows：
（1）Nano titanium dioxide or SiO 2 powder and vinyl silanes alcohol are mixed into into solution, then will be mixed molten
Liquid carries out the mechanical lapping of 4-6 hours, and the solution of output is checked with electromotive force particle analyzer, obtains titanium dioxide or two
Silica chemistry antecedent；
（2）By the titanium dioxide or silicon dioxide antecedent input solution of synthesis, and photosensitizer, organic solvent are added, mixed
Into dip-coating coating solution；
（3）Glass transmission cover is immersed into coating solution, the lifting within the 10-300 seconds is taken out；
（4）Dip-coating coating solution is solidificated in by diffuser surface using ultra-violet curing technology.
Further, the silicones/diphenyl diimide thin film is to make to obtain of the method for spraying or spin coating, and film thickness is
10nm-3000nm。
Further, the nano-silica/silicone resin film forms the super-drainage structure of a trickle male-type, institute
It is to make to obtain of the method for molding to state trickle projection, and film thickness is 10nm-3000nm.
Further, the large power white light LED sends roadway illumination light, and colour temperature is 1700-6500K, including yellow-white,
Warm white, positive white, cool white LED；Free-form surface lens before large power white light LED are designed to the Vespertilio needed for roadway illumination
Wing hot spot；Ultraviolet LED sends the ultraviolet light that hydrophilic interaction is produced to water wetted material thin film, and wavelength is 350-390nm, bandwidth 16-
25nm；The ultraviolet hot spot that free-form surface lens before ultraviolet LED are designed to illuminates whole diffuser；Ultraviolet LED is by driving power supply
Regularly light 10-60 interval times minute daily.
Further, described nano-silica/silicone resin film has hydrophobicity, the glass transmission cover surface system
The trickle bulge-structure that high low dimensional is 10nm-3000nm is made, silicon dioxide quality content is 3-4%, silicon tree in thin-film material
Fat mass content is 7-8%, in use the function with self-cleaning.
Further, the inert gas helium or neon or its mixed gas, inner gas pressure is 1-2 atmospheric pressure.
Further, in metallic cavity, its lead is sealed by fluid sealant glue for LED and PCB integral solders, it is described
The material in metal sealing chamber is aluminum or rustless steel, and the back side is equipped with radiator, improves heat dispersion.Described radiator is that fin dissipates
Hot device, or heat-pipe radiator, or fin and the radiator of heat-pipe radiator combination.
The Novel LED street lamp module of the present invention, adds part ultraviolet LED in street lamp LED light source, by automatically controlling drive
Galvanic electricity source makes the fixed interval of its timing send ultraviolet light.Nano titanium oxide hydrophilic film, or nanometer are scribbled on the surface of diffuser
Silica/silicon resin film hydrophobic film, or the hydrophilic/hydrophobic builtup film structure of silica/silicon resin/diphenyl diimide,
Then there is Superhydrophilic under ultraviolet irradiation, there is super-hydrophobicity under without ultraviolet light.By both properties, reach
To diffuser self-cleaning, the purpose of anti-scatter.Meanwhile, in the sealing of street lamp module cavity, the higher helium of heat conductivity is filled in inside
Gas or neon or its mixed gas, so as to improve the heat dispersion of LED street lamp, further improve Module Reliability.
Description of the drawings
Fig. 1 is the LED street lamp modular structure schematic diagram with automatically cleaning anti-scatter function diffuser of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings 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, by radiator 1,
Driving power supply 2, metallic cavity 3, large power white light LED 4, ultraviolet LED 5, the free-form surface lens 6, glass of placing LED and PCB
Glass diffuser 7 is constituted.Radiator 1 and driving power supply 2 are located at the back side of metallic cavity 3, large power white light LED 4 and ultraviolet LED
5 are arranged with metallic cavity 3, and ultraviolet LED 5 is arranged between large power white light LED 4, and free-form surface lens 6 are arranged on big work(
Rate white light LEDs 4 and the outside of ultraviolet LED 5, glass transmission cover 7 covers metallic cavity 3.
Part ultraviolet LED 5 is added first in large power white light LED 4, and is automatically controlled by power supply, the fixed interval of timing
Send ultraviolet light.Account for comprising power in LED street lamp module and the large power white light LED 4 of total LED power 90-98% and account for total LED
The ultraviolet LED 5 of power 2-10%, large power white light LED 4 sends roadway illumination light, and colour temperature is 1700-6500K, high-power white
Free-form surface lens 6 before light LED are designed to the batswing tab hot spot needed for roadway illumination；Ultraviolet LED 5 is sent to water wetted material
Thin film produces the ultraviolet light of hydrophilic interaction, and wavelength is 350-390nm, bandwidth 16-25nm, the free-form surface lens before ultraviolet LED
The ultraviolet hot spot being designed to illuminates whole diffuser；When ultraviolet LED is regularly lighted 10-60 minutes and is spaced daily by driving power supply
Between.
Glass transmission cover 7 is made up of high borosilicate glass, and in whole visible light wave range transmitance 91-92%, 350- are reached
390nm uv transmittances reach 88-91%.The ultraviolet luminous energy of described 350-390nm is acted on the generation of hydrophilic/hydrophobic material.In glass
Glass diffuser 7 coats nano titanium oxide hydrophilic film, or nano-silica/silicone resin hydrophobic thin film, or silica/silicon
The hydrophilic/hydrophobic builtup film structure of resin/diphenyl diimide.Nano-titanium dioxide film, diphenyl diimide hydrophilic film, film thickness is
10nm-3000nm.High low dimensional is fabricated on cover surface for 10nm-3000nm trickle raised nano silicon/
Silicones hydrophobic structure, in thin-film material silicon dioxide quality content be 3-4%, silicones mass content be 7-8%.Using
Function with self-cleaning in journey.
Inert gas helium or neon or its mixed gas, 1-2 air are filled with street lamp module metal sealing intracavity portion
Pressure.Overall package in metallic cavity, is finally become LED street lamp module by LED with PCB integral solders.
Diffuser with automatically cleaning anti-scatter function, the LED street lamp module of high thermal conductivity of the present invention, glass transmission
Nano-silica/silicone resin film on cover 7, forms the super-drainage structure of a trickle male-type.Or silica/silicon tree
The hydrophilic azobenzene group of fat/diphenyl diimide builtup film is blocked, and forms a trickle raised super-drainage structure, so when it is saturating
Light shield or free-form surface lens surface have super-hydrophobicity；And the nanometer two under conditions of ultraviolet LED light irradiation, on diffuser
Thin film of titanium oxide, is zero degree to the contact angle of the liquid such as water with infiltration effect；Or diphenyl diimide tightens up body structure surface, dredge
Water base group inside contracts, and hydrophilic group is then exposed at diffuser surface, and whole surface structure is smooth hydrophilic-structure；Therefore water becomes
To in whole surface drawout, i.e., diffuser has Superhydrophilic.Sprawl to be formed dust band during moisture film in water
Walk, simultaneously because the effect of sprawling, the water dew for condensing upon surface is sprawled, and eliminates water dew to scattering of light, improves light transmission efficiency.
In diffuser, the LED street lamp module of high thermal conductivity of the present invention with automatically cleaning anti-scatter function, in light source
Part ultraviolet LED is added, ultraviolet light is sent by the fixed interval of power supply timing.In general, ultraviolet LED does not light,
The light that i.e. diffuser surface receives is visible ray.Now, their surface has super-hydrophobicity.Vapor condenses on surface
When, because the super-hydrophobicity on surface, water droplet is less with the active force on surface, and the active force between dust is larger.Therefore, water
Drop is easy to be come off together with the dust on surface.Super-hydrophobicity causes the surface of diffuser to be difficult to haze, and dust stratification is more not yet
Easily.
When ultraviolet LED is luminous, the surface of diffuser is also irradiated in addition to by radiation of visible light by ultraviolet light.This
When, their surface is in Superhydrophilic.When hydrogenesis are on their surfaces, can sprawl and be distributed in diffuser surface, formed compared with
Uniform moisture film and flow out along hydrophilic film edge, and moisture can take out of surface dirt.Now, surface carries also without hazing
High transmission rate.
By the effect of this surface super hydrophilic-super-hydrophobicity, the diffuser of the LED street lamp module of the present invention reaches
The purpose of light shield self-cleaning, anti-scatter.So as to reach the purpose for improving LED street lamp light transmittance.
LED street lamp module is arranged in metal sealing cavity, and its lead is sealed by fluid sealant glue.The material in metal sealing chamber
Expect for aluminum or rustless steel, the back side is equipped with fin, improve heat dispersion.Metal sealing intracavity portion is filled with high heat conduction characteristic
Inert gas helium or neon or its mixed gas, inner gas pressure is 1-2 atmospheric pressure.Because the heat conductivity of helium, neon is
0.1426W/mK and 0.0455W/mK or so, respectively heat conductivity are 6 times of 0.0233W/mK air and nearly 2 times.Both improved
The derivation of LED heating heats, can prevent the pollution to LED, lens and inner surface in cavity such as aqueous vapor and haze again.
By blue light indium gallium nitrogen LED chip, peak wavelength is 454nm to the white light LEDs that the LED street lamp module of the present invention is used,
Bandwidth 22nm, excites yellow Y3Al5O12:Ce fluorescent material, peak wavelength is 560nm, and bandwidth 114nm is constituted, and light source color temperature is
3600K, warm white；LED street lamp module has used 18 1W large power white light LEDs, constitutes the LED street lamp module of 20W.And
Add 4 0.2W ultraviolet LEDs inside street lamp module, the peak wavelength of ultraviolet LED 5 is 390nm, bandwidth 21nm.White light, purple
Outer LED's is bright dark by control system control.Glass transmission cover 3 is made up of high borosilicate glass, and two have been used on diffuser
The hydrophilic/hydrophobic combination three-layer thin-film structure of silicon oxide/silicones/diphenyl diimide, gross thickness 900nm；Wherein silicon dioxide is bottom
Layer, thickness 400nm；Silicones are intermediate layer, thickness 350nm；Diphenyl diimide is in top layer, thickness 150nm；Intermediate layer silicones molding
The trickle projection that high low dimensional is 50nm is fabricated to, nano-silica/silicone resin hydrophobic structure is formed.
First by LED and PCB welding, then integral solder is in metallic cavity, then installs diffuser, then metal sealing intracavity
The helium of 1.5 atmospheric pressure is filled with, purity is 99%.Finally integral sealing is encapsulated into into LED street lamp module.
Ultraviolet LED control system controls ultraviolet LED after street lamp is opened 480 minutes, opens 20 minutes, is then shut off.This
Invention make street lamp reached preferable automatically cleaning, anti-scatter effect, while module diffuser temperature than do not fill helium, from
So the matched group of air is low 2 degree, improves heat dispersion.Because street lamp is mounted in eminence, uv power is little, and because ultraviolet
The lamp unlatching period is later, and the impact to pedestrian can be slightly.
Claims (5)
1. a kind of LED street lamp module with automatically cleaning anti-scatter function diffuser, including radiator（1）, driving power supply（2）、
Place the metallic cavity of LED and PCB（3）, large power white light LED（4）, ultraviolet LED（5）, free-form surface lens（6）, glass it is saturating
Light shield（7）, it is characterised in that：The glass transmission cover（7）Surface scribbles hydrophilic and hydrophobic builtup film, described metallic cavity
（3）For seal cavity, it is interior in fill helium or neon noble gases or its mixed gas；The glass transmission cover（7）Surface scribbles nanometer
The hydrophilic and hydrophobic builtup film of silicon dioxide, silicones and diphenyl diimide；The method for coating of the nano silicon is as follows：
（1）Nano grade silica particles and vinyl silanes alcohol are mixed into into solution, then mixed solution is carried out into the machine of 4-6 hours
Tool grinds, and the solution of output is checked with electromotive force particle analyzer, obtains nanometer titanium dioxide chemistry of silicones antecedent；
（2）Nanometer titanium dioxide chemistry of silicones antecedent is put into into solution, and adds photosensitizer and organic solvent, be mixed into dip-coating film molten
Liquid；
（3）By glass transmission cover（7）Immersion dip-coating coating solution, the lifting within the 10-300 seconds is taken out；
（4）Dip-coating coating solution is solidificated in by glass transmission cover surface using ultra-violet curing technology.
2. the LED street lamp module with automatically cleaning anti-scatter function diffuser according to claim 1, it is characterised in that：
The glass transmission cover（7）It is made up of high borosilicate glass, in whole visible light wave range transmitance 91-92%, 350- is reached
390nm uv transmittances reach 88-91%, and the ultraviolet luminous energy of described 350-390nm is acted on hydrophilic and hydrophobic material generation.
3. the LED street lamp module with automatically cleaning anti-scatter function diffuser according to claim 1, it is characterised in that：
The nanometer titanium dioxide silicon thin film or silicone resin film form a trickle raised super-drainage structure, and the trickle projection is to use
The method of molding makes and obtains, and monolayer film thickness is 10nm-3000nm.
4. the LED street lamp module with automatically cleaning anti-scatter function diffuser according to claim 1, it is characterised in that：
The helium or neon noble gases or its mixed gas, inner gas pressure is 1-2 atmospheric pressure.
5. the LED street lamp module with automatically cleaning anti-scatter function diffuser according to claim 1, it is characterised in that：
LED is with PCB integral solders in metallic cavity（3）In, the lead of LED is by sealant sealing, described metallic cavity（3）Material
Expect for aluminum or rustless steel, the back side is equipped with radiator（1）, improve heat dispersion；
Described radiator is fin slices radiator, or heat-pipe radiator, or fin and the radiator of heat-pipe radiator combination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103939816A CN103939816A (en) | 2014-07-23 |
| CN103939816B true CN103939816B (en) | 2017-05-10 |
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| CN201410156813.XA Active 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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Families Citing this family (6)
| 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 |
| 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 |
| CN107880302B (en) * | 2017-12-19 | 2021-02-02 | 中物院成都科学技术发展中心 | Patterned polymer and preparation method thereof |
| CN109163240A (en) * | 2018-09-10 | 2019-01-08 | 天津大学 | Nano-energy-saving desk lamp holder |
| CN109903689B (en) * | 2019-03-13 | 2021-11-02 | 深圳市洲明科技股份有限公司 | LED display screen and preparation method thereof |
| CN111609558B (en) * | 2020-05-15 | 2022-01-07 | 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 |
|---|---|---|---|---|
| CN101105274B (en) * | 2007-08-14 | 2010-09-29 | 叶伟 | Multiple energy-saving road lamp |
| JP2009245846A (en) * | 2008-03-31 | 2009-10-22 | Suzhou Marsleds Optoelectronics Co Ltd | Led street light |
| CN201593732U (en) * | 2010-01-29 | 2010-09-29 | 郑州天阳新能源科技有限公司 | High-power LED street lamp |
| CN201897165U (en) * | 2010-10-25 | 2011-07-13 | 惠州志能达光电科技有限公司 | LED (light-emitting diode) street lamp with self-cleaning function |
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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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