CN102938441A - LED surface light source - Google Patents
LED surface light source Download PDFInfo
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- CN102938441A CN102938441A CN2012104672916A CN201210467291A CN102938441A CN 102938441 A CN102938441 A CN 102938441A CN 2012104672916 A CN2012104672916 A CN 2012104672916A CN 201210467291 A CN201210467291 A CN 201210467291A CN 102938441 A CN102938441 A CN 102938441A
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- led
- led chip
- area source
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Abstract
The invention discloses an LED surface light source which comprises an LED chip group (1), an LED fluorescent plate (2) and a supporting structure (3). The LED chip group (1) is arranged in the supporting structure (3), the supporting structure (3) is provided with the LED fluorescent plate (2), and light emitted from the LED chip group (1) is transmitted through the LED fluorescent plate (2). The LED chip group (1) includes one or multiple LED chips (10) coated with fluorescent powder. With the LED surface light source, problems about heat dissipation of the LED chips, degradation of fluorescent powder and glare of electric light sources are solved. When the LED surface light source is used for manufacturing lamps, cost for secondary light distribution is reduced and light efficiency of the light source is improved.
Description
Technical field
The present invention relates to a kind of LED area source, belong to the solid state lighting technical field.
Background technology
The LED white-light illuminating has been widely used in general lighting and back lighting field because light efficiency is high, the life-span is long, moulding is abundant, and present white LED light source all is to use White-light LED chip to realize through 2 luminous intensity distribution designs.Traditional White-light LED chip applies yellow fluorescent powder at the blue led chip surface and forms, and recently also has to use ultraviolet LED chip surface coating three primary colors fluorescent powder to form.
Because fluorescent material directly is coated in the led chip surface, no matter which kind of mode, the problem that the capital exists led chip heat radiation difficulty, light efficiency to reduce, simultaneously at high temperature easily sex change of LED fluorescent material, the degradation phenomena that can occur light efficiency and color rendering index after long-time the use becomes the subject matter that the restriction white light LEDs is used.And at present the led chip of encapsulation is directly used and can be produced dazzle as a kind of point-source of light, so also needs to carry out secondary light-distribution, has further like this strengthened the light efficiency loss.
For this problem, scientific circles carry out the improvement of led chip structure, packaging technology and phosphor material powder always, made significant headway, but these improve the problem that still is not enough to thoroughly solve present existence, and higher cost occurs, also restricted the popularization of new technology.
Summary of the invention
Technical problem to be solved by this invention provides a kind of LED area source, and this light source solves led chip heat radiation, fluorescent material is deteriorated and the problem such as electric light source dazzle.
In order to solve the problems of the technologies described above, a kind of LED area source of the present invention comprises led chip group, LED fluorescent plate and supporting construction, and described led chip group is arranged in the supporting construction, also be provided with the LED fluorescent plate on the supporting construction, the light that the led chip group is sent transmits out by the LED fluorescent plate.
Described led chip group comprises one or more led chips, and led chip can be the LED of blue-ray LED, ultraviolet LED or other spectrum, and the led chip surface does not apply fluorescent material.
Described led chip goes out packaging body by heat sink being fixed on the driving power and with thermal conductance.
Single of described led chip employing or COB mode encapsulate formation.
Described LED fluorescent plate is made of the thin material single side face coating LED fluorescent coating of transparent material.
Described thin material is glass or high-molecular organic material.
Described thin material is planar structure or curved-surface structure.
The fluorescent material that described LED fluorescent coating adopts is the remote fluorescence powder, and this phosphor material powder proportioning is corresponding with the spectrum that led chip sends, and can inspire visible light.
Described supporting bracket end is provided with extraction electrode, and described extraction electrode is needle-like, sheet or is flexible conductor, externally connects source power supply, can provide input for led chip group driving power.
The present invention solves the led chip heat radiation, fluorescent material is deteriorated and the problem of electric light source dazzle, also can adopt this LED area source directly to make light fixture simultaneously, has reduced the cost of secondary light-distribution, has improved luminous efficiency of source.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Accompanying drawing 1 is structural representation of the present invention.
Accompanying drawing 2 is led chip group structural representation of the present invention.
Accompanying drawing 3 is LED fluorescent plate structural representation of the present invention.
Accompanying drawing 4 is supporting part structure schematic diagram of the present invention.
Accompanying drawing 5 is tubular LED area source structural representation of the present invention.
Accompanying drawing 6 is tubulose LED area source structural representation of the present invention.
Embodiment
As shown in Figure 1, 2, a kind of LED area source, it comprises led chip group 1, LED fluorescent plate 2 and supporting construction 3, described led chip group 1 is arranged in the supporting construction 3, also be provided with LED fluorescent plate 2 on the supporting construction 3, the light that led chip group 1 is sent transmits out by LED fluorescent plate 2; Described led chip group 1 comprises one or more led chips 10, and led chip 10 surfaces do not apply fluorescent material.
Described led chip 10 is fixed on driving power 12 shells and with thermal conductance by heat sink 11 and goes out packaging body.
Described led chip 10 single of employing or COB mode encapsulate formation.
As shown in Figure 3, described LED fluorescent plate 2 is made of the thin material 21 single side face coating LED fluorescent coating 22 of transparent material.
Described thin material 21 is glass or high-molecular organic material.
Described thin material 21 is planar structure or curved-surface structure.
The fluorescent material that described LED fluorescent coating 22 adopts is the remote fluorescence powder.
As shown in Figure 4, described supporting bracket 3 ends are provided with extraction electrode 31.
Described extraction electrode 31 is needle-like, sheet or is flexible conductor.
As shown in Figure 5, be the tubular LED planar light source that utilizes technical solution of the present invention to make,
This tubular LED planar light source comprises led chip group 1, LED fluorescent plate 2 and driving power 12 shells, described led chip group 1 is that several blue-light LED chips 10 directly are encapsulated in and form above heat sink, its driving power is installed in heat sink back, then pack into together in driving power 12 shells, power input is connected on the extraction electrode 31, LED fluorescent plate 2 applies one deck yellow led fluorescent material at transparent PC sheet material and forms, be installed in the surface of light shell outer cover, coat side is inside, shell uses opaque metal, pottery or organic material, the inboard reflective surface that forms, light can not penetrate from the side, all sends by the LED fluorescent plate.Behind the plugged, led chip group 1 is sent blue light, is radiated on the LED fluorescent plate 2, inspires white light, can be used for general lighting, replaces traditional Down lamp or LED Down lamp.
Accompanying drawing 6 is the tubulose LED curved surface light sources that utilize technical solution of the present invention to make.
This tubulose LED curved surface light source comprises bar-shaped LED chipset 1, cylindrical shape LED fluorescent plate 2 and two terminals, described led chip group 1 is one group of ultraviolet led chip that is packaged into bar shaped, can be to luminous all around, the centre is heat sink, driving power is installed on the terminal, cylindrical shape LED fluorescent plate 2 forms at the inboard one deck three-primary color LED fluorescent material that applies of the transparent PC material of cylindrical shape, form the LED face of cylinder light source of a tubulose after bar-shaped LED chipset 1 and cylindrical shape LED fluorescent plate 2 are fixing by two terminals, bar-shaped LED chipset 1 is positioned at the middle position of cylindrical shape LED fluorescent plate 2, and extraction electrode 31 is housed on the fixed terminal.Behind the plugged, led chip group 1) send ultraviolet ray, shine on the cylindrical shape LED fluorescent plate 2, inspire white light, can be used for general lighting, replace traditional fluorescent lamp.
Above-described embodiment does not limit the present invention in any way, and every employing is equal to replaces or technical scheme that the mode of equivalent transformation obtains all drops in protection scope of the present invention.
Claims (9)
1. LED area source, it is characterized in that comprising led chip group (1), LED fluorescent plate (2) and supporting construction (3), described led chip group (1) is arranged in the supporting construction (3), also be provided with LED fluorescent plate (2) on the supporting construction (3), the light that led chip group (1) is sent transmits out by LED fluorescent plate (2); Described led chip group (1) comprises one or more led chips (10), and led chip (10) surface does not apply fluorescent material.
2. LED area source according to claim 1, it is characterized in that: described led chip (10) is fixed on driving power (12) shell and with thermal conductance by heat sink (11) and goes out packaging body.
3. LED area source according to claim 2 is characterized in that: described led chip (10) adopts single or COB mode to encapsulate formation.
4. LED area source according to claim 1 is characterized in that: described LED fluorescent plate (2) applies LED fluorescent coating (22) by thin material (21) single side face of transparent material and consists of.
5. LED area source according to claim 4, it is characterized in that: described thin material (21) is glass or high-molecular organic material.
6. LED area source according to claim 5, it is characterized in that: described thin material (21) is planar structure or curved-surface structure.
7. LED area source according to claim 4 is characterized in that: the fluorescent material that described LED fluorescent coating (22) adopts is the remote fluorescence powder.
8. LED area source according to claim 1, it is characterized in that: described supporting bracket (3) end is provided with extraction electrode (31).
9. LED area source according to claim 8 is characterized in that: described extraction electrode (31) is for needle-like, sheet or be flexible conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104672916A CN102938441A (en) | 2012-11-19 | 2012-11-19 | LED surface light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104672916A CN102938441A (en) | 2012-11-19 | 2012-11-19 | LED surface light source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102938441A true CN102938441A (en) | 2013-02-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104672916A Pending CN102938441A (en) | 2012-11-19 | 2012-11-19 | LED surface light source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102938441A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050168127A1 (en) * | 2004-01-30 | 2005-08-04 | Shih-Chang Shei | [white light led] |
| CN201561314U (en) * | 2009-12-18 | 2010-08-25 | 深圳市成光兴实业发展有限公司 | LED energy-saving lamp adopting integral fluorescence conversion technique |
| CN202392549U (en) * | 2012-01-11 | 2012-08-22 | 史杰 | LED spotlight |
| CN203013720U (en) * | 2012-11-19 | 2013-06-19 | 常熟卓辉光电科技有限公司 | LED surface light source |
-
2012
- 2012-11-19 CN CN2012104672916A patent/CN102938441A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050168127A1 (en) * | 2004-01-30 | 2005-08-04 | Shih-Chang Shei | [white light led] |
| CN201561314U (en) * | 2009-12-18 | 2010-08-25 | 深圳市成光兴实业发展有限公司 | LED energy-saving lamp adopting integral fluorescence conversion technique |
| CN202392549U (en) * | 2012-01-11 | 2012-08-22 | 史杰 | LED spotlight |
| CN203013720U (en) * | 2012-11-19 | 2013-06-19 | 常熟卓辉光电科技有限公司 | LED surface light source |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130220 |