CN203351662U - High luminous efficiency LED blue light COB light source - Google Patents
High luminous efficiency LED blue light COB light source Download PDFInfo
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- CN203351662U CN203351662U CN 201320382676 CN201320382676U CN203351662U CN 203351662 U CN203351662 U CN 203351662U CN 201320382676 CN201320382676 CN 201320382676 CN 201320382676 U CN201320382676 U CN 201320382676U CN 203351662 U CN203351662 U CN 203351662U
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Abstract
The utility model provides a high luminous efficiency LED blue light COB light source. The high luminous efficiency LED blue light COB light source comprises a base board and LED chips fixedly bonded on the base board, wherein the base board and the LED chips are covered by a high light transmission silica gel layer, and multiple pyramid-shaped projections or concave pits are formed on a surface of the base board. Through a technical scheme, light emitted by the chips of the high luminous efficiency LED blue light COB light source realizes inward concentration and reflection at the multiple pyramid-shaped projections or the concave pits formed on the surface of the base board, so a light emitting angle of the high light transmission silica gel layer is reduced. Compared with the prior art, the high luminous efficiency LED blue light COB light source reduces total reflection absorption of light at the high light transmission silica gel layer, improves light emitting efficiency and reduces heat radiation cost.
Description
Technical field
The utility model relates to LED light-emitting device field, is specifically related to a kind of high light efficiency LED blue light COB light source.
Background technology
Along with scientific and technological progress, to have a light efficiency high because of it for LED light source, and cost is low, and pollution-free, meets the advantages such as national energy-saving environmental protection theme, more and more is subject to people's favor.Wherein adopting the LED light fixture of far-end fluorescent material technology to have the advantages such as light efficiency is higher, cost is lower and the life-span long, the colour temperature drift is little, bright dipping is even is constantly approved by people.At present, what far-end fluorescent material technology adopted is blue-ray LED light source activation yellow fluorescent powder, obtains white light after mixed light, and the LED blue light source of high light efficiency is the core of this technology.But on market, the light extraction efficiency of the LED blue light source of existing high light efficiency is low, and, because power is large, makes inside accumulate heat large, need be dispelled the heat, otherwise can seriously shorten the useful life of whole LED light source, so additionally increase the heat radiation cost.
Given this, this case the inventor furtherd investigate the problems referred to above, then has this case to produce.
The utility model content
The purpose of this utility model is to provide a kind of light extraction efficiency that improved, and has reduced the high light efficiency LED blue light COB light source of heat radiation cost.
In order to achieve the above object, the utility model adopts such technical scheme:
A kind of high light efficiency LED blue light COB light source, comprise substrate and fixedly be bonded in the LED chip on substrate, is covered with high translucent silica gel layer on described substrate and LED chip; The surface of described substrate is formed with projection or the pit of a plurality of pyramid-shaped.
Above-mentioned projection or pit are tetrapyamid shape.
The width of above-mentioned projection is 1-20000 μ m, is highly 1-10000 μ m, or the width of above-mentioned pit is 1-20000 μ m, and the degree of depth is 1-10000 μ m.
Above-mentioned projection or pit are laid in the surface of aforesaid substrate continuously, the base angle between two adjacent described projections, or the base angle of described pit is 2-60 °.
After adopting technique scheme, high light efficiency LED blue light COB light source of the present utility model, break through the structural form of traditional LED blue light COB light source, the projection of a plurality of pyramid-shaped that the light that its LED chip sends forms at substrate surface or pit are inwardly concentrated reflection, reduced the beam projecting angle of high translucent silica gel layer, compared with prior art, high light efficiency LED blue light COB light source of the present utility model, it has overcome the fault of construction at traditional LED blue light COB light source Vernonia parishii Hook． F． angle, having reduced the total reflection of light at high translucent silica gel layer place absorbs, improved light extraction efficiency, also strengthened heat radiation, needn't take extra cooling measure, reduced the heat radiation cost.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
The cross-sectional schematic that Fig. 2 is Fig. 1;
The structural representation that Fig. 3 is another execution mode of the utility model.
In figure:
1-substrate 11-projection
The 12-pit
The high translucent silica gel layer of 2-LED chip 3-
Embodiment
Be described in detail the technical solution of the utility model below by specific embodiment in order further to explain.
A kind of high light efficiency LED blue light COB light source of the present utility model, as Figure 1-3, comprise substrate 1, LED chip 2 and high translucent silica gel layer 3.
Preferably, projection 11 or pit 12 are tetrapyamid shape, easily carry out rule and arrange.
Preferably, projection 11 width is 1-20000 μ m, is highly 1-10000 μ m, or the width of pit 12 is 1-20000 μ m, and the degree of depth is 1-10000 μ m.
In order to give full play to the concentrated reflection action of projection 11 or pit 12, preferably, projection 11 or pit 12 are laid in the surface of substrate 1 continuously, and the base angle that two adjacent projection is 11 is 2-60 °, or the base angle of pit 12 is 2-60 °.
High light efficiency LED blue light COB light source of the present utility model, the base angle between two adjacent projections, or the base angle number of degrees of pit also can be adjusted and be designed according to actual requirement; Rib number, size, quantity and the distribution form etc. of projection or pit also can be adjusted and be designed according to actual requirement; High translucent silica gel layer is made by the existing silica gel material with high light transmittance energy.
Product form of the present utility model is not limited to this case diagram and embodiment, and anyone carries out suitable variation or the modification of similar thinking to it, all should be considered as not breaking away from patent category of the present utility model.
Claims (4)
1. a high light efficiency LED blue light COB light source, comprise substrate and fixedly be bonded in the LED chip on substrate, is covered with high translucent silica gel layer on described substrate and LED chip; It is characterized in that: the surface of described substrate is formed with projection or the pit of a plurality of pyramid-shaped.
2. a kind of high light efficiency LED blue light COB light source according to claim 1, it is characterized in that: above-mentioned projection or pit are tetrapyamid shape.
3. a kind of high light efficiency LED blue light COB light source according to claim 2, it is characterized in that: the width of above-mentioned projection is 1-20000 μ m, is highly 1-10000 μ m, or the width of above-mentioned pit is 1-20000 μ m, the degree of depth is 1-10000 μ m.
4. according to claim 1,2 or 3 described a kind of high light efficiency LED blue light COB light sources, it is characterized in that: above-mentioned projection or pit are laid in the surface of aforesaid substrate continuously, the base angle between two adjacent described projections, or the base angle of described pit is 2-60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320382676 CN203351662U (en) | 2013-06-28 | 2013-06-28 | High luminous efficiency LED blue light COB light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320382676 CN203351662U (en) | 2013-06-28 | 2013-06-28 | High luminous efficiency LED blue light COB light source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203351662U true CN203351662U (en) | 2013-12-18 |
Family
ID=49751519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320382676 Expired - Fee Related CN203351662U (en) | 2013-06-28 | 2013-06-28 | High luminous efficiency LED blue light COB light source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203351662U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103682062A (en) * | 2013-12-27 | 2014-03-26 | 中山职业技术学院 | Multi-scale microstructural packaging substrate with fractal feature and manufacturing method thereof |
| CN105185775A (en) * | 2015-10-14 | 2015-12-23 | 南京吉山光电科技有限公司 | COB light source light emitting structure and application thereof |
| CN108767091A (en) * | 2018-06-15 | 2018-11-06 | 南通沃特光电科技有限公司 | A kind of light emitting device package structure and preparation method thereof |
-
2013
- 2013-06-28 CN CN 201320382676 patent/CN203351662U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103682062A (en) * | 2013-12-27 | 2014-03-26 | 中山职业技术学院 | Multi-scale microstructural packaging substrate with fractal feature and manufacturing method thereof |
| CN103682062B (en) * | 2013-12-27 | 2016-08-17 | 中山职业技术学院 | A kind of multiple dimensioned micro structure base plate for packaging with fractal characteristic and manufacture method thereof |
| CN105185775A (en) * | 2015-10-14 | 2015-12-23 | 南京吉山光电科技有限公司 | COB light source light emitting structure and application thereof |
| CN105185775B (en) * | 2015-10-14 | 2018-04-03 | 淮安吉山光电科技有限公司 | A kind of COB light source light emitting structures and its application |
| CN108767091A (en) * | 2018-06-15 | 2018-11-06 | 南通沃特光电科技有限公司 | A kind of light emitting device package structure and preparation method thereof |
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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 |
Granted publication date: 20131218 Termination date: 20150628 |
|
| EXPY | Termination of patent right or utility model |