CN103268913B - The method of LED light source fluorescence pulvis collocation method and the detection fluorescent material uniformity - Google Patents
The method of LED light source fluorescence pulvis collocation method and the detection fluorescent material uniformity Download PDFInfo
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- CN103268913B CN103268913B CN201310187289.8A CN201310187289A CN103268913B CN 103268913 B CN103268913 B CN 103268913B CN 201310187289 A CN201310187289 A CN 201310187289A CN 103268913 B CN103268913 B CN 103268913B
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- 239000000463 material Substances 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 47
- 238000001514 detection method Methods 0.000 title claims abstract description 22
- 238000003756 stirring Methods 0.000 claims abstract description 28
- 239000007788 liquid Substances 0.000 claims abstract description 21
- 238000007654 immersion Methods 0.000 claims abstract description 14
- 238000005070 sampling Methods 0.000 claims abstract description 6
- 239000003292 glue Substances 0.000 claims description 29
- 239000002994 raw material Substances 0.000 claims description 19
- 239000003822 epoxy resin Substances 0.000 claims description 15
- 229920000647 polyepoxide Polymers 0.000 claims description 15
- 238000013019 agitation Methods 0.000 claims description 5
- 239000011521 glass Substances 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 abstract description 9
- 238000002156 mixing Methods 0.000 abstract description 4
- 238000002791 soaking Methods 0.000 abstract description 2
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- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 238000004020 luminiscence type Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004033 diameter control Methods 0.000 description 1
- 238000005401 electroluminescence Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
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- 238000005286 illumination Methods 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
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- 238000005096 rolling process Methods 0.000 description 1
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- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
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- 239000010937 tungsten Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
The invention provides a kind of method of LED light source fluorescence pulvis collocation method and the detection fluorescent material uniformity, belong to electric components technical field.It solve existing LED light source fluorescence pulvis configuration amount large, the uniformity is not easy the problem detected.This LED light source fluorescence pulvis collocation method is by soaking, stirring and detecting step forms.To detect in above-mentioned fluorescence pulvis fluorescent material uniformity method by sampling dropping liquid and observe and decide step forms.This LED light source fluorescence pulvis collocation method is by the fluorescence pulvis of preparation low dose and can shorten mixing time widely by leaving standstill immersion, significantly reduces workload.Equipment in this detection fluorescence pulvis needed for fluorescent material uniformity method is common, and personnel requirement is lower.In this detection fluorescence pulvis, fluorescent material uniformity method also has handiness, detects required time short, affects effective duration of LED light source fluorescence pulvis hardly.
Description
Technical field
The invention belongs to electric components technical field, relate to a kind of LED light source fluorescence pulvis, particularly a kind of LED light source fluorescence pulvis collocation method.
The invention belongs to electric components technical field, relate to a kind of LED light source fluorescence pulvis, particularly a kind of fluorescent material uniformity method in detection fluorescence pulvis.
Background technology
The solid-state semiconductor device of LED to be a kind of can be by electric energy conversion visible ray.It changes the principle of the luminescence of incandescent lamp tungsten filament and the luminescence of electricity-saving lamp tricolor powder, and adopts electroluminescence.According to analysis, clearly, the life-span is long, light efficiency is high, radiation is low and low in energy consumption for the feature of LED.So LED industry is current rising industry, prospect a slice is bright.
LED semiconductor lighting really will enter general illumination field, and production cost becomes first restraining factors.First the cost reducing lighting is wanted it is considered that the packaging cost of light source, and wherein material price, labour cost and yield account for major part.And various material unit price has been tending towards transparence; Labour cost goes up not down; Can only break through from yield aspect thus.
Along with after blue-light excited fluorescent material mixing send this technology of white light come out after, white light color does unanimously by the process duct control method that the countless older generation sums up a set of cover through experimental verification many times.Uniformity that it roughly comprises the management and control of fluorescent material requirement even particle size, the management and control of the some glue glue amount uniformity, the management and control of fluorescent material precipitation, the management and control of reflector standard, the levelness of baking box, fluorescent material mix in glue etc.
More than affect the mixture homogeneity of fluorescent material in glue in white light yield factor as easy as rolling off a log by artificial and such environmental effects, cause the uniformity of different batches mixed liquor inconsistent, and then affect product yield.
List of references about fluorescent material and glue mixed preparation method is more, a kind of LED packaging slurry and preparation method thereof (application number: 200910254516 disclosed in Chinese patent literature; Publication number: CN101752490A) record " TiO2 (D50 is 30nm) of the modification uvioresistant epoxy resin solution of 100g, 0.05g, 3g nitrogen oxidation green matter fluorescent powder and 7g nitrogen oxide red fluorescence powder being mixed; Homogeneous phase mixing 0.5h under magnetic stirring, namely obtains white-light LED encapsulation slurry " in specification.Although adopt the little metering method of each preparation from above-mentioned preparation method, and the more consistent fluorescence pulvis of the uniformity may be obtained, still there is many defects: stirring half an hour is in all embodiments minimum value, and maximum is 5 hours; In low dose of manner of formulation, above-mentioned confecting efficiency is obviously not suitable with actual production demand.
Summary of the invention
The object of the invention is to there are the problems referred to above for existing technology, propose a kind of LED light source fluorescence pulvis collocation method, the present invention will solve the low problem of confecting efficiency.
Object of the present invention realizes by following technical proposal: a kind of LED light source fluorescence pulvis collocation method, and it is characterized in that, this collocation method is made up of following steps:
A, immersion: first in beaker, add all raw materials, leave standstill and soak;
B, stirring: stir above-mentioned raw materials with glass bar, form fluorescence pulvis;
C, detection: detect the fluorescent material uniformity in above-mentioned fluorescence pulvis, if testing result reaches requirement, complete configuration; Otherwise continue stir successively and detect the fluorescent material uniformity, until reach requirement.
The raw material of LED light source fluorescence pulvis comprises fluorescent material, epoxy resin glue and some auxiliary materials.This collocation method is adopted to be applicable to preparing low dose of LED light source fluorescence pulvis; Immersion is that the enable raw material being dissolved in glue is dissolved in glue in advance; The raw material that can not be dissolved in glue is with glue premixed and fully contact; Even if raw material more easily disperses in whipping step.Stirring raw material is disperseed gradually, reaches and be uniformly distributed.Ensureing that the LED light source fluorescence pulvis of each batch all reaches requirement by detecting, namely effectively improving the yield of product.
As preferably, in above-mentioned LED light source fluorescence pulvis collocation method, the fluorescent material in described LED light source fluorescence pulvis raw material first adds beaker, then adds epoxy resin glue; Auxiliary material added before standing immersion.Fluorescent material dispersibles in beaker bottom after adding beaker, more just makes fluorescent material and epoxy resin glue premixed when adding epoxy resin glue, and premixed effect is optimum.
In above-mentioned LED light source fluorescence pulvis collocation method, described soak time is 1.5 ~ 3 minutes.
In above-mentioned LED light source fluorescence pulvis collocation method, the stirring in described step B is along a direction Keep agitation 4 ~ 6 minutes.
In above-mentioned LED light source fluorescence pulvis collocation method, each time of the stirring in described step C is 2 ~ 4 minutes.
Fluorescent material uniformity method in the above-mentioned fluorescence pulvis of a kind of detection, it is characterized in that, this detection method is made up of following steps:
A, sampling dropping liquid: adopt suction pipe to sample from fluorescence pulvis, vertically drop on slide;
B, observe and decide: select the slide that dropping liquid is rounded, use microscopic examination dropping liquid, the image observed and laboratory proofing conclusion image ratio pair, judge whether above-mentioned fluorescence pulvis reaches requirement.
In the above-mentioned fluorescence pulvis of above-mentioned detection in fluorescent material uniformity method, described suction pipe liquid in-out mouth is 0.6 ~ 1.2 ㎝ apart from slide height.
In the above-mentioned fluorescence pulvis of above-mentioned detection in fluorescent material uniformity method, the diameter of described dropping liquid is 4 ~ 6 ㎜.
In the above-mentioned fluorescence pulvis of above-mentioned detection in fluorescent material uniformity method, described slide comprises the first slide and the second slide, and fluorescence pulvis vertically drops on the first slide, is then vertically closed by the second slide.
Compared with prior art, this LED light source fluorescence pulvis collocation method is by the fluorescence pulvis of preparation low dose and can shorten mixing time widely by leaving standstill immersion, significantly reduces workload.Adopt this method configuration LED light source fluorescence pulvis just can complete at about 8 minutes, can shorten for more than 70% preparation time thus, greatly increase confecting efficiency.Adopting every batch, this method configuration LED light source fluorescence pulvis all by detecting, all can ensure that every batch of fluorescent material uniformity all meets the requirements of, therefore indirectly can ensure the yield of LED light source.The effective time of LED light source fluorescence pulvis is shorter, therefore adopts this method configuration LED light source fluorescence pulvis to prepare at every turn in a small amount, can ensure the validity of LED light source fluorescence pulvis, can ensure sustainable supply again, very be applicable to needs of production.
Equipment in this detection fluorescence pulvis needed for fluorescent material uniformity method is common, namely have drop into and testing cost all lower, personnel requirement also lower and and can with prepare LED light source fluorescence pulvis in advantages such as the same area carry out.In this detection fluorescence pulvis, fluorescent material uniformity method also has handiness, detects required time short, affects effective duration of LED light source fluorescence pulvis hardly.
Accompanying drawing explanation
Fig. 1 is the slide with dropping liquid.
Fig. 2 is laboratory proofing conclusion the first situation map picture undesirable.
Fig. 3 is laboratory proofing conclusion undesirable the second situation map picture.
Fig. 4 is that laboratory proofing conclusion meets the requirements of an image.
In figure: 1, dropping liquid; 2, the first slide; 3, the second slide.
Embodiment
Be below specific embodiments of the invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiments.
This LED light source fluorescence pulvis collocation method is made up of immersion, stirring and detection three steps successively.The dosage adopting this method at every turn to configure fluorescence pulvis is 6 ~ 10 grams.
Embodiment one
Immersion first in beaker, adds all raw materials, then leave standstill immersion.Different LED light source fluorescence pulvis raw materials may be slightly different, but LED light source fluorescence pulvis raw material forms primarily of fluorescent material, epoxy resin glue and some auxiliary materials.As preferably, when adding raw material, first 3 grams of fluorescent material are added beaker, then add 3 grams of epoxy resin glues; And auxiliary material added before standing immersion.The weight of auxiliary material is only at 0.08 gram ~ 0.12 gram; This weight adding auxiliary material is 0.1 gram.
Rush fluorescent material when adding epoxy resin glue, fluorescent material is mixed with epoxy resin glue, namely produce premixed effect.Two or three circle is stirred again in order to increase after premixed effect can add epoxy resin glue; And before adding epoxy resin glue, make fluorescent material be dispersed in beaker bottom.
In raw material, some composition can be dissolved in glue, and other compositions can not be dissolved in glue; Then soaking is that the composition that can be dissolved in glue in raw material is dissolved in glue in advance, and the composition that can not be dissolved in glue fully contacts mutually with glue.Soak time is 2 minutes.
Stir: stir above-mentioned raw materials with glass bar, form fluorescence pulvis.Stir as along a direction Keep agitation 5 minutes.
Detection is the uniformity detecting fluorescent material in fluorescence pulvis, is fluorescent material and epoxy resin glue mixture homogeneity in other words; If testing result reaches requirement, complete configuration; Directly meeting the requirements of probability is about 90%.If do not reach requirement, continue to stir successively and detect, until detect fluorescent material uniformity result to reach requirement.The each time of stirring is in this step 3 minutes.Leaving standstill immersion a period of time again owing to being equivalent to fluorescence pulvis in testing process, by again stirring, testing result can be made to reach requirement probability 100%.
This detects fluorescent material uniformity method in above-mentioned fluorescence pulvis and is made up of sampling dropping liquid and observe and decide step successively.
Specifically, sampling dropping liquid adopts suction pipe to sample from fluorescence pulvis, vertically drops on slide.As shown in Figure 1, more particularly, slide comprises the first slide 2 and the second slide 3, and fluorescence pulvis vertically drops on the first slide 2, is then vertically closed by the second slide 3.As preferably, the diameter control of dropping liquid 1 is at 4 ~ 6 ㎜.Drop in improve the probability that on slide, dropping liquid 1 is rounded, suction pipe liquid in-out mouth is 0.6 ~ 1.2 ㎝ apart from slide height.
Observe and decide is that the slide selecting dropping liquid 1 rounded uses microscopic examination, and the image observed and laboratory proofing conclusion image ratio pair, judge whether the fluorescence pulvis of above-mentioned sampling reaches requirement.As shown in Figure 3, dropping liquid 1 is not rounded, does not namely meet the requirement of slide to be detected.As shown in Figure 2, fluorescent material has overlap and skewness, therefore belongs to and does not reach requirement situation.As shown in Figure 4, dropping liquid 1 is rounded, and fluorescent material does not have overlap and distributes relatively uniform, therefore belongs to and reaches requirement situation.
Embodiment two
Immersion first 3 grams of fluorescent material is added beaker, adds 0.08 gram of auxiliary material, then add 3 grams of epoxy resin glues.Standing soak time is 1.5 minutes.Stir as Keep agitation along clockwise direction 4 minutes.
Detect the uniformity of fluorescent material in fluorescence pulvis and directly to reach requirement probability be about 65%.Do not reach requirement then to continue to stir successively and detect, each time of stirring is in this step 4 minutes; Detection reaches requirement probability is again about 99%; Do not meet the requirements of fluorescence pulvis yet and then abandon preparation.
Embodiment three
Immersion first 5 grams of fluorescent material is added beaker, then add 5 grams of epoxy resin glues; Finally add 0.12 gram of auxiliary material.Standing soak time is 3 minutes.
Stirring stirs above-mentioned raw materials with glass bar, forms fluorescence pulvis.Stir as Keep agitation in the counterclockwise direction 6 minutes.
Detect the uniformity of fluorescent material in fluorescence pulvis and directly to reach requirement probability be about 98%.Do not reach requirement then to continue to stir successively and detect, each time of stirring is in this step 4 minutes; Detection reaches requirement probability is again about 98%; Do not meet the requirements of fluorescence pulvis yet and then abandon preparation.
Claims (8)
1. a LED light source fluorescence pulvis collocation method, it is characterized in that, this collocation method is made up of following steps:
A, immersion: first in beaker, add all raw materials, leave standstill and soak;
B, stirring: stir above-mentioned raw materials with glass bar, form fluorescence pulvis;
C, detection: detect the fluorescent material uniformity in above-mentioned fluorescence pulvis, if testing result reaches requirement, complete configuration; Otherwise continue stir successively and detect the fluorescent material uniformity, until reach requirement.
2. LED light source fluorescence pulvis collocation method according to claim 1, is characterized in that, the fluorescent material in described LED light source fluorescence pulvis raw material first adds beaker, then adds epoxy resin glue; Auxiliary material added before standing immersion.
3. LED light source fluorescence pulvis collocation method according to claim 1, it is characterized in that, described soak time is 1.5 ~ 3 minutes.
4. the LED light source fluorescence pulvis collocation method according to claim 1 or 2 or 3, is characterized in that, the stirring in described step B is along a direction Keep agitation 3 ~ 5 minutes.
5. the LED light source fluorescence pulvis collocation method according to claim 1 or 2 or 3, it is characterized in that, each time of the stirring in described step C is 1.5 ~ 3 minutes.
6. detect a fluorescent material uniformity method in above-mentioned fluorescence pulvis, it is characterized in that, this detection method is made up of following steps:
A, sampling dropping liquid (1): adopt suction pipe to sample from fluorescence pulvis, vertically drop on slide; Described suction pipe liquid in-out mouth is 0.6 ~ 1.2 ㎝ apart from slide height;
B, observe and decide: select the slide that dropping liquid (1) is rounded, use microscopic examination dropping liquid (1), the image observed and laboratory proofing conclusion image ratio pair, judge whether above-mentioned fluorescence pulvis reaches requirement.
7. fluorescent material uniformity method in the above-mentioned fluorescence pulvis of detection according to claim 6, is characterized in that, the diameter of described dropping liquid (1) is 4 ~ 6 ㎜.
8. fluorescent material uniformity method in the above-mentioned fluorescence pulvis of the detection according to claim 6 or 7, it is characterized in that, described slide comprises the first slide (2) and the second slide (3), fluorescence pulvis vertically drops on the first slide (2), is then vertically closed by the second slide (3).
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| CN112730366A (en) * | 2020-12-29 | 2021-04-30 | 湖北富邦新材料有限公司 | Method for rapidly judging wrapping uniformity of fully water-soluble liquid anti-caking agent on fertilizer |
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| CN101592617A (en) * | 2009-05-22 | 2009-12-02 | 彩虹集团电子股份有限公司 | A kind of detection method of CCFL fluorescent powder compatibility |
| CN101752490A (en) * | 2009-12-25 | 2010-06-23 | 彩虹集团公司 | A kind of LED packaging slurry and preparation method thereof |
| CN102925014A (en) * | 2011-08-09 | 2013-02-13 | 赵凯志 | High-brightness silver paint for automobile wheel hubs, and its preparation method |
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| CN101592617A (en) * | 2009-05-22 | 2009-12-02 | 彩虹集团电子股份有限公司 | A kind of detection method of CCFL fluorescent powder compatibility |
| CN101752490A (en) * | 2009-12-25 | 2010-06-23 | 彩虹集团公司 | A kind of LED packaging slurry and preparation method thereof |
| CN102925014A (en) * | 2011-08-09 | 2013-02-13 | 赵凯志 | High-brightness silver paint for automobile wheel hubs, and its preparation method |
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