CN101017814A - A separating fluorescence film white LED lamp - Google Patents
A separating fluorescence film white LED lamp Download PDFInfo
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- CN101017814A CN101017814A CNA2007100728292A CN200710072829A CN101017814A CN 101017814 A CN101017814 A CN 101017814A CN A2007100728292 A CNA2007100728292 A CN A2007100728292A CN 200710072829 A CN200710072829 A CN 200710072829A CN 101017814 A CN101017814 A CN 101017814A
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Abstract
The disclosed white light LED scheme with isolative fluorescent membrane structure does no change to current LED die and fluorescence powder material, just pre-prepares the fluorescent membrane, and assembles both of the membrane and dies on bright side of LED die with a proper distance. This invention reduces attenuation rate for fluorescence powder by some magnitude orders, and increases service time for white light LED lamp.
Description
[technical field]
The present invention relates to a kind of white LED lamp, be specifically related to a kind of separating fluorescence film white LED lamp.
[background technology]
Realize that LED sends the technical scheme of white light, the combination of RGB red, green and blue LED tube core is arranged, the blue yellow LED tube core combination of BY is arranged.The present white light LEDs technical scheme that generally adopts, be with YAG yellow-green fluorescence powder furnishing glue, directly be coated in the blue-light LED chip surface, when blue light is sent in the blue-light LED chip energising, wherein a part of blue-light excited YAG fluorescent material sends the green-yellow light that wavelength is 500nm-560nm, and the blue light with another part transmissive forms visual white light again.
The principle that coating fluorescent powder technical scheme succession fluorescent tube emits white light, efficient is expensive low, is used widely.The also surface applied technical scheme of this simple structure just, in practical operation, cloth glue evenly makes the colour temperature consistency of white light LEDs finished product and luminous consistency poor inadequately, and rate of finished products is not high, is difficult to adjust the colour temperature of finished product LED afterwards.
Yet the most basic defective of this technical scheme still is fluorescent material failure rate height: fluorescent material directly contacts the LED tube core, and a large amount of heats that send when LED works make the fluorescent material working temperature higher, greatly accelerates the decay of fluorescent material.
Analysis is learnt: the white light LEDs of surface applied phosphor structure, its tube core rate of decay and fluorescent material rate of decay are not reciprocity fully: according to the standard service condition, LED tube core attenuation rate is generally 10 under rational electric stress
-5To 10
-6The order of magnitude.The fluorescent material attenuation rate is to use the function of condition equally, and wherein one of essential condition is working temperature: the high more decay of temperature is fast more.By directly coating fluorescent powder is in the manufacturing process of LED die surfaces now, the attenuation rate of fluorescent material is greatly about 10
-3Even higher, than LED tube core difference several magnitude, do not match very much.
The direct result of this structure of LED surface applied fluorescent material is exactly: fluorescent material directly is subjected to the high-temperature baking of LED tube core, cause fluorescent material depleted fast, this not only makes the comprehensive luminous efficiency of LED lamp very easily decay, and the transformation of colour temperature also exceeds reasonable range, the integrated quality that has limited white LED lamp promotes, and the large tracts of land that has had a strong impact on white LED lamp is popularized.
[summary of the invention]
The technical problem to be solved in the present invention provides a kind of separating fluorescence film white LED lamp structure technology scheme, need not to change under the prerequisite of existing LED tube core and phosphor material powder parameter, only, just can greatly delay the useful life of LED decay, prolongation white LED lamp by changing the raw material layout structure that has the LED lamp now and suitably adjusting manufacturing process.
For addressing the above problem, the technical scheme that the present invention takes is: a kind of separating fluorescence film white LED lamp, no longer adopt the manufacturing process of direct coating fluorescent powder in the LED die surfaces, but make film or sheet form general designation fluorescent film with materials such as fluorescent material in advance, fluorescent film and LED tube core with moulding keeps suitably being installed in LED tube core light-emitting area one side apart from isolating again, both reached the effect that fluorescence excitation blendes together white light, obviously reduce the fluorescent material working temperature again, reduce the fluorescent material attenuation rate from forming some orders of magnitude ground, the attenuation rate and the LED tube core that reach fluorescent material are complementary, and realize effectively improving the white LED lamp purpose in useful life.
Because the making of fluorescent film can be adopted standardization technology, be easy to realize the high efficiency production in enormous quantities, can guarantee that the fluorescent film consistency of product is good, can satisfy the LED lamp subsequent technique flow process requirement of afterwards adjusting different-colour again, improve the finished product rate, reach same model product colour temperature unanimity, the light-emitting area effect of uniform.
The structure of fluorescent film comprises in material the single layer structure of fluorescent material, mainly contains two kinds of forms:
1 sandwich-type: be mainly used in and make the fluorescent film finished product, again fluorescent film is applied to the occasion of white LED lamp.Shown in Figure 1 is the vertical section structure schematic diagram of fluorescent film.Fluorescent film has three layers of formation: levels 2 is the basic shaping material layer that light transmission is good, attenuation rate is low, and intermediate course 1 is the fluorescent functional material layer.Trilaminate material is through suitable technology form as one film or thin plate, is convenient to cut out, following process such as extrusion modling, conveniently uses in enormous quantities on light fixture.
A) relative flexibility fluorescent film: have certain ductility, be convenient to stick use on difform light source surface.
B) relative stiffness fluorescent film: have certain rigid and elasticity, be convenient to the lampshade that secondary operations is made into different shape.
2 surface applied formulas: adopt spraying, smear or typography, fluorescent material is applied directly to lampshade inner surface or outer surface.As required, can cover protective clear layer again on the good fluorescence coating surface of coating, in case be subjected to damages such as pollution, oxidation.Fig. 4 is a kind of LED fluorescent lamp fluorescent tube that is similar to the conventional tube fluorescent lamp.Tube outer wall 8 and inwall 10 adopt the transparent material manufacturing, and fluorescence interlayer 9 contains fluorescent material.In addition, fluorescent tube also can adopt pipe wall material to contain the single layer structure of fluorescent material.
Adopt technique scheme, beneficial technical effects of the present invention is: the LED tube core of heating is isolated from space structure during 1) with fluorescent material and work, cause the interruption of thermal conduction path, can effectively reduce the working temperature of fluorescent material, the working life that prolongs fluorescent material greatly; 2) the independent fluorescent film of making can obviously improve LED colour temperature controlling level, improves the white LED lamp rate of finished products greatly; 3) change according to the light flux distribution of LED lamp source different wave on fluorescent film, determine the variation of fluorescent material consumption on the fluorescent film, manufacture and design the separating fluorescence film of optimum performance; 4) division of labor based on specialization of fluorescent film making helps forming the large-scale production of standard batch, can further reduce the cost of white light LEDs product, helps advancing LED green illumination cause.
The present invention is described in further detail below in conjunction with the drawings and specific embodiments:
[description of drawings]
Fig. 1 is the fluorescent film structural representation, and the centre of the shape layer up and down 2 that light transmissive material is made is fluorescent material interlayers 1.
Fig. 2 is a kind of separating fluorescence film white LED lamp 3 schematic diagrames.
Fig. 3 is separating fluorescence film white LED lamp 3 vertical section structure schematic diagrames among Fig. 2, and led light source plate 5 is attached on the cooling base 6, and fluorescent film 4 keeps at a certain distance away and is installed in led light source plate 5 exiting surfaces top.
Fig. 4 is cylindrical light tubulose fluorescent film lampshade 7 schematic diagrames.
Fig. 5 is cylindrical light tubulose fluorescent film lampshade 7 longitudinal section schematic diagrames, is fluorescent material interlayer 9 between outer transparent material moulding protective layer 8 and the internal layer transparent material moulding protective layer 10.
[embodiment]
Shown in Figure 2: blue light led array circuit forms blue-ray LED light source board 5 on the electronic ceramic plate, place and contain the fluorescent film 4 that yellow fluorescent material is made at the 3-5mm place above blue light source plate 5, aluminium alloy heat-dissipation lamp housing 6 plays the effect of heat radiation and moulding as the pedestal of white LED lamp.The white LED lamp of this structure, the heat that the LED tube core sends dissipates the overwhelming majority through pedestal because fluorescent film is away from the LED tube core, during work the low decay of temperature little, prolong useful life greatly.
The place of realizing the key of conventional material white LED lamp longevity in the present embodiment is exactly ' isolation fluorescent film ' structure.
Claims (9)
1, a kind of separating fluorescence film white LED lamp is characterized in that: do not apply fluorescent material at blue light or purple LED die surfaces, contain fluorescent materials film, fluorescent plate or fluorescent tube but open one section heat insulation distance use with the LED die isolation.
2, fluorescent film according to claim 1, fluorescent plate or fluorescent tube is characterized in that: fluorescent film, fluorescent plate or fluorescent tube are three-deckers: two-layer outside is light transmissive material, and intermediate course contains fluorescent material.
3, fluorescent film according to claim 1, fluorescent plate or fluorescent tube is characterized in that: fluorescent film, fluorescent plate or fluorescent tube are single layer structures, contain fluorescent material in its manufactured materials.
4, according to claim 1,2,3 described isolated fluorescent plate or fluorescent tubes, it is characterized in that: fluorescent plate, fluorescent tube have rigidity, elasticity, plasticity, can be processed into different shape, can make fluorescent lamp shade, are convenient to be installed on the LED lamp.
5, according to claim 1,2,3 described separating fluorescence films, it is characterized in that: fluorescent film is a fexible film, can be processed into different shape, is convenient to be installed on the LED lampshade.
6, separating fluorescence film white LED lamp according to claim 1 is characterized in that: fluorescent material layer is made link and is comprised spraying coating process.
7, separating fluorescence film white LED lamp according to claim 1 is characterized in that: fluorescent material layer is made link and is comprised typography.
8, separating fluorescence film white LED lamp according to claim 1 is characterized in that: fluorescent material layer is made link and is comprised application process.
9, a kind of separating fluorescence film white LED lamp according to claim 1 is characterized in that: on the lampshade of garden tubulose white LED lamp fluorescent material is arranged, fluorescent material can be coated on the tube wall, also can be mixed in the lamp tube wall material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100728292A CN101017814B (en) | 2007-01-09 | 2007-01-09 | A separating fluorescence film white LED lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100728292A CN101017814B (en) | 2007-01-09 | 2007-01-09 | A separating fluorescence film white LED lamp |
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| Publication Number | Publication Date |
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| CN101017814A true CN101017814A (en) | 2007-08-15 |
| CN101017814B CN101017814B (en) | 2012-02-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100728292A Expired - Fee Related CN101017814B (en) | 2007-01-09 | 2007-01-09 | A separating fluorescence film white LED lamp |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010115347A1 (en) * | 2009-04-09 | 2010-10-14 | 大连路明发光科技股份有限公司 | Led illumination lamp |
| CN102174999A (en) * | 2011-02-25 | 2011-09-07 | 江苏永兴多媒体有限公司 | Method for producing LED lamp panel |
| CN102208514A (en) * | 2010-03-29 | 2011-10-05 | 海洋王照明科技股份有限公司 | Integrated illuminating part and preparation method thereof |
| CN102353015A (en) * | 2011-07-19 | 2012-02-15 | 彩虹集团公司 | Light-emitting diode (LED) excited surface light source device and method |
| CN102506317A (en) * | 2011-10-24 | 2012-06-20 | 宁波市佰仕电器有限公司 | U-shaped light-emitting diode (LED) energy-saving lamp |
| CN102916116A (en) * | 2012-08-14 | 2013-02-06 | 杭州纳晶科技有限公司 | LED (light-emitting diode) optical accessory, LED lamp and LED optical accessory preparation method |
| CN105242456A (en) * | 2015-10-27 | 2016-01-13 | 深圳市华星光电技术有限公司 | Light source assembly and backlight module |
| CN107270139A (en) * | 2012-08-31 | 2017-10-20 | 晶元光电股份有限公司 | Light-emitting device and the method for operating light-emitting device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2763981Y (en) * | 2004-12-21 | 2006-03-08 | 李长署 | Improved structure of white light LED |
-
2007
- 2007-01-09 CN CN2007100728292A patent/CN101017814B/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010115347A1 (en) * | 2009-04-09 | 2010-10-14 | 大连路明发光科技股份有限公司 | Led illumination lamp |
| CN102208514A (en) * | 2010-03-29 | 2011-10-05 | 海洋王照明科技股份有限公司 | Integrated illuminating part and preparation method thereof |
| CN102174999A (en) * | 2011-02-25 | 2011-09-07 | 江苏永兴多媒体有限公司 | Method for producing LED lamp panel |
| CN102353015A (en) * | 2011-07-19 | 2012-02-15 | 彩虹集团公司 | Light-emitting diode (LED) excited surface light source device and method |
| CN102506317A (en) * | 2011-10-24 | 2012-06-20 | 宁波市佰仕电器有限公司 | U-shaped light-emitting diode (LED) energy-saving lamp |
| CN102916116A (en) * | 2012-08-14 | 2013-02-06 | 杭州纳晶科技有限公司 | LED (light-emitting diode) optical accessory, LED lamp and LED optical accessory preparation method |
| CN102916116B (en) * | 2012-08-14 | 2015-11-25 | 纳晶科技股份有限公司 | LED optical accessory, LED and LED optical accessory preparation method |
| CN107270139A (en) * | 2012-08-31 | 2017-10-20 | 晶元光电股份有限公司 | Light-emitting device and the method for operating light-emitting device |
| CN107270139B (en) * | 2012-08-31 | 2020-11-06 | 晶元光电股份有限公司 | Light emitting device and method for operating a light emitting device |
| CN105242456A (en) * | 2015-10-27 | 2016-01-13 | 深圳市华星光电技术有限公司 | Light source assembly and backlight module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101017814B (en) | 2012-02-29 |
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