CN203470333U - Screening equipment for improving output of color area of white-light LED (light emitting diode) bulb - Google Patents
Screening equipment for improving output of color area of white-light LED (light emitting diode) bulb Download PDFInfo
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- CN203470333U CN203470333U CN201320535567.XU CN201320535567U CN203470333U CN 203470333 U CN203470333 U CN 203470333U CN 201320535567 U CN201320535567 U CN 201320535567U CN 203470333 U CN203470333 U CN 203470333U
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Abstract
The utility model discloses screening equipment for improving output of a color area of a white-light LED (light emitting diode) bulb. The screening equipment comprises a hollow screening equipment body, wherein a plurality of layers of filtering films are arranged in the screening equipment body; the screening equipment body is connected with air pressure equipment; a stirrer is arranged at one end, which is far away from the air pressure equipment, of the screening equipment body and is arranged right below the screening equipment body; and a gap is formed between the stirrer and the screening equipment body. The screening equipment for improving the output of the color area of the white-light LED bulb has the advantages that the screening equipment is simple in structure and convenient to use; fluorescent glue is screened by using air flow control; the fluorescent glue with different grain diameters can be obtained by using the filtering films; the output capacity of the LED color area is improved by using the screened fluorescent glue; and the reliability of LED products cannot be affected.
Description
Technical field
The utility model relates to a kind of equipment, especially relates to a kind ofly for improving the screening plant of white LED lamp Zhu Se district output, belongs to LED field.
Background technology
White light LEDs is because it is efficient, energy-conservation, the life-span is long, pollution-free, high reliability, be described as the 4th generation green illumination light source.Along with the steady lifting of LED luminous efficiency and the continuous decline of price, LED semiconductor lighting will progressively replace the traditional lighting light sources such as incandescent lamp and conventional fluorescent lamps.
The key core of LED semiconductor lighting is the making of LED lamp pearl, at industrial the most conventional white light LEDs production method, is to utilize LED blue chip to coordinate fluorescent material.This mode has advantage on production cost, heat radiation and control circuit.Fluorescent material is one of critical material of LED semiconductor lighting, and the particle size distribution of fluorescent material can affect LEDSe district output, and size distribution is wider, and packaged LED Deng Zhuse district output capacity is lower, makes LED light-emitting uniformity be under some influence simultaneously.The fluorescent powder grain broad particle distribution that industrial production is used now, thus cause production ShiLEDSe district output capacity undesirable.How to improve LEDSe district output capacity and be the difficult problem of pendulum in face of LED Packaging Industry, most of producers adopt toward the method that adds antisolvent precipitation powder in fluorescent glue, but the antisolvent precipitation powder in this method can affect the reliability of product.
Utility model content
The purpose of this utility model is to overcome the lower problem of existing LEDSe district output capacity, has designed a kind ofly for improving the screening plant of white LED lamp Zhu Se district output, and this screening plant can improve white light LEDs look district output capacity.
The purpose of this utility model is achieved through the following technical solutions: a kind of for improving the screening plant of white LED lamp Zhu Se district output, the screening installation that comprises inner hollow, the inside of described screening installation is provided with some layers of filter membrane, screening installation is connected with pneumatic compression devices, screening installation is provided with agitator away from one end of pneumatic compression devices, agitator be arranged on screening installation under, between agitator and screening installation, there is gap.The air-flow that utilizes pneumatic compression devices to produce pressurizes to the fluorescent glue in screening installation, make the fluorescent glue of different-grain diameter pass through filter membrane, obtain needing the fluorescent glue of particle size range, the use of classifying of the fluorescent glue of being convenient to different-grain diameter, improves LiaoLED Deng Zhuse district output capacity.
Further, in described filter membrane, between every one deck filter membrane, there is gap, the outer wall of filter membrane contacts with the inwall of screening installation and forms hermetically-sealed construction, and the center of every one deck filter membrane is arranged on same vertical straight line, on every one deck filter membrane, be provided with filtration through hole, be arranged on the aperture of filtration through hole in the filter membrane of top be greater than with its adjacent filter membrane in below in the aperture of filtration through hole.Filtration through-hole diameter on single layer filter film is identical, and is to be evenly distributed on this layer of filter membrane, utilize air-flow pass through fluorescent glue is screened.
Further, described pneumatic compression devices is the steel cylinder that is loaded with high pure nitrogen, and the gas outlet of steel cylinder is connected with pipeline, and the internal communication of pipeline and screening installation is provided with air gauge on pipeline, and air gauge is arranged between steel cylinder and screening installation; On described pipeline, be provided with valve one, valve one is arranged on the position, gas outlet of steel cylinder, and valve one is arranged between steel cylinder and air gauge; On described pipeline, be provided with valve two, valve two is arranged between air gauge and screening installation.Splendid attire high pure nitrogen in steel cylinder, utilizes the stability of nitrogen, avoids and fluorescent glue produces chemical reaction and pollutes fluorescent glue, and each valve carries out opening and closing according to the different periods, controls screening process.
Further, between described screening installation and agitator, be provided with escape pipe, one end of escape pipe and screening installation internal communication, be provided with valve three on escape pipe, and valve three is arranged between screening installation and agitator; Described agitator is magnetic stirring apparatus, and the bottom of magnetic stirring apparatus and escape pipe exists gap.Valve three and escape pipe also can be arranged on the sidewall of screening installation, but or need to be arranged on sidewall on the lower, for binder removal and ventilation, magnetic stirring apparatus is existing equipment, when putting into container, stirrer is put into wherein liquid simultaneously, utilize the principle of magnetic field and whirlpool to drive stirrer to become circumference shuttling movement, thereby reach the object of agitated liquid.In screening installation, be provided with stirrer, could coordinate like this magnetic stirring apparatus to stir the fluorescent glue in screening installation, to reach the object of rapid screening.
In sum, the beneficial effects of the utility model are: this screening plant simple in structure, easy to use, utilizing air-flow to control sieves fluorescent glue, can utilize filter membrane to wait until the fluorescent glue of different-grain diameter, then with the fluorescent glue having sieved, improve LiaoLEDSe district output capacity and don't can affect LED product reliability.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Mark and corresponding parts title in accompanying drawing: 1-steel cylinder; 2-valve one; 3-air gauge; 4-pipeline; 5-valve two; 6-screening installation; 7-filter membrane; 8-valve three; 9-magnetic stirring apparatus.
the specific embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but embodiment of the present utility model is not limited only to this.
Embodiment 1:
As shown in Figure 1, a kind of for improving the screening plant of white LED lamp Zhu Se district output, the screening installation 6 that comprises inner hollow, the inside of described screening installation 6 is provided with some layers of filter membrane 7, screening installation 6 is connected with pneumatic compression devices, screening installation 6 is provided with agitator away from one end of pneumatic compression devices, agitator be arranged on screening installation 6 under, between agitator and screening installation 6, there is gap.Utilize agitator to stir the fluorescent glue in screening installation 6, and then open pneumatic compression devices and pass into air-flow, by the fluorescent glue of different-grain diameter by filter membrane 7 screenings out, can obtain according to the aperture of filter membrane the fluorescent glue of different-grain diameter, then use respectively the fluorescent glue having sieved to improve LiaoLEDSe district output capacity and don't can affect LED product reliability.
Embodiment 2:
As shown in Figure 1, on the basis of embodiment 1, in described filter membrane 7, between every one deck filter membrane 7, there is gap, the outer wall of filter membrane 7 contacts with the inwall of screening installation 6 and forms hermetically-sealed construction, and the center of every one deck filter membrane 7 is arranged on same vertical straight line, on every one deck filter membrane 7, be provided with filtration through hole, be arranged on the aperture that the aperture of filtration through hole in the filter membrane 7 of top is greater than the filtration through hole in the adjacent filter membrane 7 with its below.In the present embodiment, two-layer filter membrane 7 is preferentially set, three grades of seal chambers in screening installation 6, have been formed like this, the fluorescent glue of different-grain diameter is put in the first order, the aperture of the filtration through hole of the filter membrane 7 in the first order is greater than the aperture of the filtration through hole of the filter membrane 7 in the second level, when sieving, the fluorescent glue particle diameter obtaining reduces from top to bottom successively, the fluorescent glue of different-grain diameter can access accurate screening, then use respectively the fluorescent glue having sieved to improve the output capacity of LED lamp pearl, by the fluorescent glue being stirred (fluorescent material and packaging plastic aqueous mixtures, 50 ~ 150g) join in the first order in filter, by nitrogen, then screen.Certainly, according to the situation of reality screening, the filter membrane 7 of other apertures and quantity also can be set.
Embodiment 3:
As shown in Figure 1, on the basis of above-described embodiment, described pneumatic compression devices is the steel cylinder 1 that is loaded with high pure nitrogen, the gas outlet of steel cylinder 1 is connected with pipeline 4, the internal communication of pipeline 4 and screening installation 6, is provided with air gauge 3 on pipeline 4, air gauge 3 is arranged between steel cylinder 1 and screening installation 6; On described pipeline 4, be provided with valve 1, valve 1 is arranged on the position, gas outlet of steel cylinder 1, and valve 1 is arranged between steel cylinder 1 and air gauge 3; On described pipeline 4, be provided with valve 25, valve 25 is arranged between air gauge 3 and screening installation 6; Between described screening installation 6 and agitator, be provided with escape pipe, one end of escape pipe and screening installation 6 internal communication, be provided with valve 38 on escape pipe, and valve 38 is arranged between screening installation 6 and agitator; Described agitator is magnetic stirring apparatus 9, and the bottom of magnetic stirring apparatus 9 and escape pipe exists gap.Valve 38 is to close in original state, the fluorescent glue being stirred (fluorescent material and packaging plastic aqueous mixtures) is joined to the first order in screening installation 6, see Fig. 1, then open at leisure the valve 1 of steel cylinder 1, make high-purity nitrogen pass into 4 li, pipeline, then open at leisure successively valve 25 and valve 38, nitrogen is passed through successively, Deng increasing at leisure again the flow of nitrogen after steady air current, the flow of nitrogen is in suitable scope, guarantee that filter membrane can work.By the time fluorescent glue changes when little in the third level in screening installation 6, successively valve-off 38, valve 25, valve 1.Then successively the fluorescent glue at different levels is taken out, so just obtained the uniform fluorescent glue of different-grain diameter and particle diameter.Escape pipe and valve 38 be arranged on screening installation 6 under, effect is best, makes air-flow even, protects filter membrane 7 safety simultaneously, avoids airflow freely not cause filter membrane 7 surface pressings uneven, thereby filter membrane 7 is damaged.
The utility model patent is not limited to above-mentioned embodiment; any simple modification, equivalent variations and modification that any those skilled in the art do above-described embodiment in based on the utility model patented technology scheme, all belong in the protection domain of the utility model patent.
Claims (7)
1. one kind for improving the screening plant of white LED lamp Zhu Se district output, it is characterized in that: the screening installation (6) that comprises inner hollow, the inside of described screening installation (6) is provided with some layers of filter membrane (7), screening installation (6) is connected with pneumatic compression devices, screening installation (6) is provided with agitator away from one end of pneumatic compression devices, agitator be arranged on screening installation (6) under, between (6), there is gap in agitator and screening installation.
2. according to claim 1 a kind of for improving the screening plant of white LED lamp Zhu Se district output, it is characterized in that: in described filter membrane (7), between every one deck filter membrane (7), have gap, the outer wall of filter membrane (7) contacts with the inwall of screening installation (6) and forms hermetically-sealed construction, and the center of every one deck filter membrane (7) is arranged on same vertical straight line, on every one deck filter membrane (7), be provided with filtration through hole, be arranged on the aperture that the aperture of filtration through hole in the filter membrane (7) of top is greater than the filtration through hole in the adjacent filter membrane (7) with its below.
3. according to claim 2 a kind of for improving the screening plant of white LED lamp Zhu Se district output, it is characterized in that: described pneumatic compression devices is the steel cylinder (1) that is loaded with nitrogen, the gas outlet of steel cylinder (1) is connected with pipeline (4), the internal communication of pipeline (4) and screening installation (6), on pipeline (4), be provided with air gauge (3), air gauge (3) is arranged between steel cylinder (1) and screening installation (6).
4. according to claim 3 a kind of for improving the screening plant of white LED lamp Zhu Se district output, it is characterized in that: on described pipeline (4), be provided with valve one (2), valve one (2) is arranged on the position, gas outlet of steel cylinder (1), and valve one (2) is arranged between steel cylinder (1) and air gauge (3).
5. according to claim 4 a kind of for improving the screening plant of white LED lamp Zhu Se district output, it is characterized in that: on described pipeline (4), be provided with valve two (5), valve two (5) is arranged between air gauge (3) and screening installation (6).
6. according to claim 1 a kind of for improving the screening plant of white LED lamp Zhu Se district output, it is characterized in that: between described screening installation (6) and agitator, be provided with escape pipe, one end of escape pipe and screening installation (6) internal communication, on escape pipe, be provided with valve three (8), valve three (8) is arranged between screening installation (6) and agitator.
7. according to claim 6 a kind of for improving the screening plant of white LED lamp Zhu Se district output, it is characterized in that: described agitator is magnetic stirring apparatus (9), and the bottom of magnetic stirring apparatus (9) and escape pipe exists gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320535567.XU CN203470333U (en) | 2013-08-30 | 2013-08-30 | Screening equipment for improving output of color area of white-light LED (light emitting diode) bulb |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320535567.XU CN203470333U (en) | 2013-08-30 | 2013-08-30 | Screening equipment for improving output of color area of white-light LED (light emitting diode) bulb |
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| Publication Number | Publication Date |
|---|---|
| CN203470333U true CN203470333U (en) | 2014-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320535567.XU Expired - Fee Related CN203470333U (en) | 2013-08-30 | 2013-08-30 | Screening equipment for improving output of color area of white-light LED (light emitting diode) bulb |
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| CN (1) | CN203470333U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106876541A (en) * | 2017-03-24 | 2017-06-20 | 芜湖聚飞光电科技有限公司 | A kind of LED encapsulation method uniformly coated based on fluorescent material |
| CN106876542A (en) * | 2017-03-24 | 2017-06-20 | 芜湖聚飞光电科技有限公司 | It is a kind of it is high fall Bin rates LED lamp bead method for packing |
-
2013
- 2013-08-30 CN CN201320535567.XU patent/CN203470333U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106876541A (en) * | 2017-03-24 | 2017-06-20 | 芜湖聚飞光电科技有限公司 | A kind of LED encapsulation method uniformly coated based on fluorescent material |
| CN106876542A (en) * | 2017-03-24 | 2017-06-20 | 芜湖聚飞光电科技有限公司 | It is a kind of it is high fall Bin rates LED lamp bead method for packing |
| CN106876541B (en) * | 2017-03-24 | 2019-01-29 | 芜湖聚飞光电科技有限公司 | A kind of LED encapsulation method uniformly coated based on fluorescent powder |
| CN106876542B (en) * | 2017-03-24 | 2019-01-29 | 芜湖聚飞光电科技有限公司 | A kind of high LED lamp bead packaging method for falling Bin rate |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20160830 |
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| CF01 | Termination of patent right due to non-payment of annual fee |