CN202678408U - LED dam structure of COB - Google Patents
LED dam structure of COB Download PDFInfo
- Publication number
- CN202678408U CN202678408U CN 201220255713 CN201220255713U CN202678408U CN 202678408 U CN202678408 U CN 202678408U CN 201220255713 CN201220255713 CN 201220255713 CN 201220255713 U CN201220255713 U CN 201220255713U CN 202678408 U CN202678408 U CN 202678408U
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- China
- Prior art keywords
- light source
- box dam
- cob
- led
- dam structure
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Abstract
The utility model discloses an LED dam structure of a COB. The dam structure is arranged around the external part of the LED light source and fixed on an LED light source base plate; the dam structure is provided with an inner side wall which is based on the lower surface, faces the upper part and tilts externally; as the inner side wall of the COB dam is made into a surface which is based on the lower surface, faces the upper part and tilts externally and the inner side wall of the COB dam is made by dam glue which is composed of transparent insulating glue and fluorescent powder, the COB light source is provided with a more precise surface structure, the optical use performance of the COB light source is greatly improved, the reflective rate of the dam of the light source is greatly improved, loss of light is reduced, and light emitting and packaging efficiency of the light source is enhanced.
Description
Technical field
The utility model relates to LED encapsulation technology field, relates in particular to the LED box dam structure of a kind of COB.
Background technology
Along with the development of LED manufacturing technology, the development of the encapsulation technology of led light source is more and more ripe.Have good heat dissipation effect, configuration design simple in structure is flexible, color homogeneity is high and hot spot is good COB light source and at modern lighting field and other key areas important using value and vast potential for future development are more and more arranged.The box dam structure has been ignored box dam glue to Optical Absorption and reflection in traditional COB encapsulation process, thereby is having part light to be fallen by the absorption of the glue of light source periphery and reflection loss, thereby has reduced to a certain extent the bright dipping of light source.
At present in the COB encapsulation process, for the design of box dam structure seldom, most of box dam shape adopts cylindrical, and this box dam structure has been ignored Optical Absorption and reflection, thereby have part light to be decreased by the absorption of the box dam glue of light source periphery and reflection, reduced to a certain extent the bright dipping of light source.Under the condition that the led light source encapsulation technology reaches its maturity, the loss of this part light is very obvious.
The utility model content
The purpose of this utility model is to propose the LED box dam structure of a kind of COB, can reduce light loss in the box dam, improves hot spot and improves the light intensity uniformity.
For reaching this purpose, the utility model by the following technical solutions:
The LED box dam structure of a kind of COB comprises: the led light source outside is put in the winding of described box dam structure ring, and is fixed on the led light source substrate;
Described box dam structure have one based on its lower surface towards the outward-dipping madial wall in its top.
As a preferred version of the LED box dam structure of above-mentioned COB, the angle on described madial wall and light source surface is 45 °.
As a preferred version of the LED box dam structure of above-mentioned COB, the cross section of described madial wall is circular, ellipse or rectangle.
As a preferred version of the LED box dam structure of above-mentioned COB, described box dam structure is made by box dam glue.
As a preferred version of the LED box dam structure of above-mentioned COB, described box dam glue comprises transparent insulation glue and fluorescent material.
As a preferred version of the LED box dam structure of above-mentioned COB, described fluorescent material with respect to the quality of described transparent insulation glue in the scope of 30% ~ 300wt%.
As a preferred version of the LED box dam structure of above-mentioned COB, described fluorescent material is comprised of the multiple material of emission different wavelengths of light.
The beneficial effects of the utility model are: the utility model provides the LED box dam structure of a kind of COB by the medial surface of COB box dam is made based on its lower surface towards outward-dipping surface, its top, and use the box dam glue that is formed by transparent insulation glue and fluorescent material to make, make the COB light source have more accurate surface texture, improved greatly the optics serviceability of COB light source, and greatly improved the reflecting rate of the box dam of light source, reduce the loss of illumination, improved bright dipping and the packaging efficiency of light source.
Description of drawings
Fig. 1 is the overall structure figure of the COB encapsulation that provides of the utility model embodiment 1;
Fig. 2 is the box dam mold use state diagram that the utility model embodiment 1 provides;
Fig. 3 is the front view of Fig. 2.
Wherein: the 1:LED light source substrate; 2: the box dam structure; The 3:LED light source; 4: the box dam mould; 21: box dam madial wall: 41: the box dam mould side wall.
Embodiment
Further specify the technical solution of the utility model below in conjunction with accompanying drawing and by embodiment.
As shown in Figure 1, box dam structure 2 is around being arranged on led light source 3 outsides, and is fixed on the led light source substrate 1.
Box dam structure 2 have one based on its lower surface towards its top and outward-dipping coaming plate madial wall 21, the angle of inclination of box dam madial wall 21 is set according to having best illumination emissivity, in the utility model, box dam madial wall 21 is 45 ° with the angle on light source surface.
The cross section of box dam madial wall 21 is circle, ellipse or rectangle, but is not limited only to this.
Described box dam structure 2 is made by box dam glue, and box dam glue comprises transparent insulation glue and fluorescent material, and in the scope of 30% ~ 300wt%, and fluorescent material is comprised of the multiple material of emission different wavelengths of light fluorescent material with respect to the quality of transparent insulation glue; The light that led light source 3 bottom emission go out shines the fluorescent material that the multiple material by multiple different wave length forms, and can be absorbed by fluorescent material, and launch white light, has improved the light efficiency of led light source 3.
Such as Fig. 2, Fig. 3 institute, it is for making the template of COB box dam structure, it is 45 ° box dam mould side wall 41 with horizontal plane angle that box dam mould 4 has one, and the bottom surface of box dam mould 4 and end face all are open type designs, the diameter of its bottom surface diameter and led light source is identical, and the diameter of the end face of coaming plate mould 4 is greater than the bottom surface diameter.
The manufacturing process of COB box dam structure is:
Step 1: at first according to the radius of led light source, choose suitable box dam mould 4, the bottom surface of box dam mould 4 and led light source substrate closely cooperate;
Step 2: select the box dam glue that reflectivity is high, absorptivity is low and concentration is suitable;
Step 3: led light source substrate and level are the 45° angle slant setting, choosing dress led light source substrate, guarantee simultaneously box dam mould and led light source substrate synchronization, the choosing dress of cooperated with LED light source substrate, box dam glue is vertically injected space between led light source substrate and the box dam mould from the top of box dam mould, treat to form the box dam structure after the box dam gelling admittedly.
Know-why of the present utility model has below been described in conjunction with specific embodiments.These are described just in order to explain principle of the present utility model, and can not be interpreted as by any way the restriction to the utility model protection range.Based on explanation herein, those skilled in the art does not need to pay performing creative labour can associate other embodiment of the present utility model, and these modes all will fall within the protection range of the present utility model.
Claims (4)
1. the LED box dam structure of a COB is characterized in that, comprising: the led light source outside is put in the winding of described box dam structure ring, and is fixed on the led light source substrate;
Described box dam structure have one based on its lower surface towards the outward-dipping madial wall in its top.
2. the LED box dam structure of COB according to claim 1 is characterized in that, the angle on described madial wall and light source surface is 45 °.
3. the LED box dam structure of COB according to claim 2 is characterized in that, the cross section of described madial wall is circle, ellipse or rectangle.
4. the LED box dam structure of COB according to claim 1 is characterized in that, described box dam structure is made by box dam glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220255713 CN202678408U (en) | 2012-06-01 | 2012-06-01 | LED dam structure of COB |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220255713 CN202678408U (en) | 2012-06-01 | 2012-06-01 | LED dam structure of COB |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202678408U true CN202678408U (en) | 2013-01-16 |
Family
ID=47499288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220255713 Expired - Fee Related CN202678408U (en) | 2012-06-01 | 2012-06-01 | LED dam structure of COB |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202678408U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103972222A (en) * | 2014-06-03 | 2014-08-06 | 宁波升谱光电半导体有限公司 | LED (light-emitting diode) light source packaging method, LED light source packaging structure and light source module |
| CN106102328A (en) * | 2016-08-22 | 2016-11-09 | 景旺电子科技(龙川)有限公司 | A kind of printed board COB box dam manufacture method |
| CN109065693A (en) * | 2018-08-08 | 2018-12-21 | 厦门多彩光电子科技有限公司 | A kind of LED encapsulation method |
-
2012
- 2012-06-01 CN CN 201220255713 patent/CN202678408U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103972222A (en) * | 2014-06-03 | 2014-08-06 | 宁波升谱光电半导体有限公司 | LED (light-emitting diode) light source packaging method, LED light source packaging structure and light source module |
| CN106102328A (en) * | 2016-08-22 | 2016-11-09 | 景旺电子科技(龙川)有限公司 | A kind of printed board COB box dam manufacture method |
| CN106102328B (en) * | 2016-08-22 | 2019-03-12 | 景旺电子科技(龙川)有限公司 | A kind of printed board COB box dam production method |
| CN109065693A (en) * | 2018-08-08 | 2018-12-21 | 厦门多彩光电子科技有限公司 | A kind of LED encapsulation method |
| CN109065693B (en) * | 2018-08-08 | 2020-09-11 | 厦门多彩光电子科技有限公司 | LED packaging method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130116 Termination date: 20160601 |