CN2795650Y - Large area high efficiency energy saving plane light source device - Google Patents
Large area high efficiency energy saving plane light source device Download PDFInfo
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- CN2795650Y CN2795650Y CNU2005200406967U CN200520040696U CN2795650Y CN 2795650 Y CN2795650 Y CN 2795650Y CN U2005200406967 U CNU2005200406967 U CN U2005200406967U CN 200520040696 U CN200520040696 U CN 200520040696U CN 2795650 Y CN2795650 Y CN 2795650Y
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- light source
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Abstract
The utility model relates to the technical field of lighting, more specifically, a large-area high-efficiency energy-saving plane light source device, which comprises an AC input power source, a rectification circuit, a filter circuit and a plane light source, wherein the plane light source is composed of LEDs, a light-passing board, a light guiding and reflecting board, an astigmatism array structure, a bottom surface light reflecting surface, a side surface light reflecting surface and a supporting board, wherein the light guiding and reflecting board is arranged on the bottom surface light reflecting surface; the LEDs are distributed at the periphery of the surface of the light guiding and reflecting board; the astigmatism array structure is arranged at the middle part of the surface of the light guiding and reflecting board; one side surface of each LED is fixed on one surface of the side surface light reflecting surface, and the other surface of the side surface light reflecting surface is fixed on the supporting board; the light-passing board is arranged on the top of the side surface light reflecting surface, and the light emitting directions of the LEDs are parallel to the surfaces of the light guiding and reflecting board and the light-passing board. The utility model has the advantages of long service life, no stroboflash, high light utilizing rate, low electricity consumption, environmental protection, high reliability, thin and light finished product, high brightness and large area.
Description
[technical field]
The utility model relates to lighting technical field, exactly is the energy-efficient planar light source device of a kind of large tracts of land.
[background technology]
Along with expanding economy, increasing for the demand of flat-type light source, as advertising lamp box, information indicator lamp, backlight etc.Because of many application belong to long-time illumination, require light source to economize on electricity, the life-span is long, and brightness is even and thickness is little.Currently used planar light source mainly be adopt side that existing fluorescent lamp is placed in planar light source after reflective from positive transmission, for the large tracts of land light source, generally be spliced by a plurality of fluorescent tubes, can cause non-uniform light at interface, this class light source life weak point has only thousands of hours, power consumption is big, and brightness is lower, and thickness is big.At the problem that above-mentioned technology exists, the present invention proposes and adopt the high brightness light emitting diode LED pointolite array to carry out the conversion of planar light, it is luminous even to adopt uniform optical total-reflection structure to make simultaneously, and the utilization rate height of light.Because of characteristics such as LED have that volume is little, life-span length is 100,000 hours, no stroboscopic, low power consumption, environmental protection, reliability height, the planar light source reliability is improved, the life-span is long, and electric power consumption is very low.Can make the thin and light of light source making in addition, the brightness height, area is big.
[summary of the invention]
The purpose of this utility model is exactly the deficiency that will solve present technology, and the energy-efficient planar light source device of a kind of large tracts of land of invention.
Design the energy-efficient planar light source device of a kind of large tracts of land for achieving the above object, comprise alternating current input power supplying (11), rectification circuit (1), filter circuit (2) and planar light source (3); The two ends of alternating current input power supplying (11) connect two inputs in the rectification circuit (1) respectively, and two outputs connect capacitor C in the rectification circuit (1) respectively in the rectification circuit (1)
1Two ends, capacitor C in the rectification circuit (1)
1An output connect colelctor electrode one end of resistance R and triode Q in the filter circuit (2), capacitor C in the rectification circuit (1)
1Another output connect capacitor C in filter circuit (2)
2An end; The other end of resistance R connects base stage and the middle capacitor C of filter circuit (2) of transistor Q in the filter circuit (2)
2The other end, capacitor C in the filter circuit (2)
2Output connect an input of planar light source (3), the emitter stage of transistor Q connects another input of planar light source (3) in the filter circuit; Planar light source (3) is by LED (4), light-passing board (5), leaded light reflector (6), astigmatism array structure (7), bottom surface reflective surface (8), side reflective surface (9) and gripper shoe (10) are formed, leaded light reflector (6) places on the bottom surface reflective surface (8), LED (4) be distributed on leaded light reflector (6) face around, astigmatism array structure (7) places the middle part on leaded light reflector (6) face, the side of LED (4) is fixed on the one side of side reflective surface (9), the another side of side reflective surface (9) is fixed on the gripper shoe (10), light-passing board (5) places the top of side reflective surface (9), and the light emission direction of LED is parallel to leaded light reflector (6) and light-passing board (5) surface.LED is made of monochromatic fluorescent tube or Color lamp tube, and the luminous intensity that adopts LED single tube white light is more than 2000mcd; The luminous intensity of glory LED is more than 1000mcd.Rectification circuit adopts bridge rectifier.Filter circuit adopts the electronic filtering form.The gripper shoe surface applied has high reflectivity film aluminium film.The material of leaded light reflector adopts transparent organic polymer material, is polymethyl methacrylate PMMA or polycarbonate or polyethylene or polyphenylene sulfide or polyvinyl chloride.The front on leaded light reflector surface is miniature pointed cone or hemispheric astigmatic array structure, and back side coating high reflectivity film aluminium film is formed miniature lattice structure.Light-passing board adopts the organic polymer material or the glass of high permeability, and organic polymer material is polymethylacrylic acid PMMA or polycarbonate or polyethylene or polyphenylene sulfide or polyvinyl chloride.The area decision LED number n of planar light source can adopt serial or parallel connection between the LED.Each required voltage of LED is Vu=3.0 ± 0.5V, and when input voltage was Vi, the LED number unit that can connect at most was ne=Vi/Vu-0.5, connects between the unit to adopt parallel connection.
The utility model compared with prior art, life-span length, no stroboscopic, the high and low power consumption of utilization rate of light, environmental protection, reliability height, and finished product is thin and light, the brightness height, area is big.
[description of drawings]
Fig. 1 is a circuit connection diagram of the present utility model.
Fig. 2 is the side surface configurations figure of the utility model Fig. 1 midplane light source.
Appointment Fig. 1 is a Figure of abstract.
Referring to Fig. 1,1 for adopting the rectification circuit of bridge rectifier mode; 2 for adopting the filter circuit of electronic filtering form; 3 is planar light source; 31 is LED; 32 is astigmatic array structure; 33 is the side reflective surface; 34 is gripper shoe; 11 is alternating current input power supplying.
Referring to Fig. 2,4 is the LED in Fig. 1 midplane light source; 5 is light-passing board; 6 is the leaded light reflector; 7 is astigmatic array structure; 8 is the bottom surface reflective surface; 9 is the side reflective surface; 10 is gripper shoe.
[specific embodiment]
In conjunction with the accompanying drawings the utility model is described further now, the utility model is still more clearly concerning the personnel of this professional skill field.
The two ends of example 1. alternating current input power supplyings (11) connect two inputs in the rectification circuit (1) respectively, and two outputs connect capacitor C in the rectification circuit (1) respectively in the rectification circuit (1)
1Two ends, capacitor C in the rectification circuit (1)
1An output connect colelctor electrode one end of resistance R and triode Q in the filter circuit (2), capacitor C in the rectification circuit (1)
1Another output connect capacitor C in filter circuit (2)
2An end; The other end of resistance R connects base stage and the middle capacitor C of filter circuit (2) of transistor Q in the filter circuit (2)
2The other end, capacitor C in the filter circuit (2)
2Output connect an input of planar light source (3), the emitter stage of transistor Q connects another input of planar light source (3) in the filter circuit (2); Leaded light reflector (6) places on the bottom surface reflective surface (8) in the planar light source (3), LED (4) be distributed on leaded light reflector (6) face around, astigmatism array structure (7) places the middle part on leaded light reflector (6) face, the side of LED (4) is fixed on the one side of side reflective surface (9), the another side of side reflective surface (9) is fixed on the gripper shoe (10), light-passing board (5) places the top of side reflective surface (9), and the light emission direction of LED is parallel to leaded light reflector (6) and light-passing board (5) surface.
The alternating current of input is imported the electronic filtering circuit filtering after the bridge rectifier rectification, make alternating current be converted into direct current, input plane light source then, this circuit is a capacity load, because of most of electrical appliance is an inductive load, can compensates the power factor of electrical network and improve utilization rate of electrical.
By the light of LED emission through array structure scattering of leaded light astigmatism plate surface astigmatism and reflection, most of light penetrates through light-passing board, and residual ray penetrates through the reflection of bottom surface reflective surface and side reflective surface and through light-passing board, make planar light source luminous evenly, and the utilization rate of light is very high.
When input voltage is the 12V direct current, the unit LEDs number is 4, for the planar light source of small size, with 4 LEDs be distributed in rectangular shaped light source around or corner; For large-area planar light source, to be contacted mutually in the LED unit, mutually and connect, LED gets final product around being distributed in frame between the unit.
Example 2. when input voltage be the 24V direct current, the unit LEDs number is 8, for the planar light source of small size, with 8 LEDs be distributed in rectangular shaped light source around or corner; For large-area planar light source, to be contacted mutually in the LED unit, mutually and connect, LED gets final product around being distributed in frame between the unit.
Example 3. when input voltage be the 36V direct current, the unit LEDs number is 12, for the planar light source of small size, with 12 LEDs be distributed in rectangular shaped light source around or corner; For large-area planar light source, to be contacted mutually in the LED unit, mutually and connect, LED gets final product around being distributed in frame between the unit.
Example 4. when input voltage be the 110V alternating current, the capacitive circuit after rectification directly is converted to the 154V direct current, the unit LEDs number is 50 ± 5, polyphone mutually, mutually and connect, LED gets final product around being distributed in frame between the unit.
Example 5. when input voltage be the 220V alternating current, the capacitive circuit after rectification directly is converted to the 308V direct current, the unit LEDs number is 100 ± 10, polyphone mutually, mutually and connect, LED gets final product around being distributed in frame between the unit.
Claims (10)
1. energy-efficient planar light source device of large tracts of land, comprise alternating current input power supplying (11), rectification circuit (1), filter circuit (2) and planar light source (3), it is characterized in that: the two ends of a. alternating current input power supplying (11) connect two inputs in the rectification circuit (1) respectively, and two outputs connect capacitor C in the rectification circuit (1) respectively in the rectification circuit (1)
1Two ends, capacitor C in the rectification circuit (1)
1An output connect colelctor electrode one end of resistance R and triode Q in the filter circuit (2), capacitor C in the rectification circuit (1)
1Another output connect capacitor C in filter circuit (2)
2An end; The other end of resistance R connects base stage and the middle capacitor C of filter circuit (2) of transistor Q in the filter circuit (2)
2The other end, capacitor C in the filter circuit (2)
2Output connect an input of planar light source (3), the emitter stage of transistor Q connects another input of planar light source (3) in the filter circuit;
B. planar light source is by LED (4), light-passing board (5), leaded light reflector (6), astigmatism array structure (7), bottom surface reflective surface (8), side reflective surface (9), gripper shoe (10) is formed, leaded light reflector (6) places on the bottom surface reflective surface (8), LED (4) be distributed on leaded light reflector (6) face around, astigmatism array structure (7) places the middle part on leaded light reflector (6) face, the side of LED (4) is fixed on the one side of side reflective surface (9), the another side of side reflective surface (9) is fixed on the gripper shoe (10), light-passing board (5) places the top of side reflective surface (9), and the light emission direction of LED is parallel to leaded light reflector (6) and light-passing board (5) surface.
2. the energy-efficient planar light source device of a kind of large tracts of land as claimed in claim 1, it is characterized in that: LED is made of monochromatic fluorescent tube or Color lamp tube, and luminous strong that adopts LED single tube white light more than the 2000med: the luminous intensity of glory LED is more than 1000med.
3. the energy-efficient planar light source device of a kind of large tracts of land as claimed in claim 1 is characterized in that: described rectification circuit adopts bridge rectifier.
4. the energy-efficient planar light source device of a kind of large tracts of land as claimed in claim 1 is characterized in that: described filter circuit adopts the electronic filtering form.
5. the energy-efficient planar light source device of a kind of large tracts of land as claimed in claim 1 is characterized in that: described gripper shoe surface applied has high reflectivity film aluminium film.
6. the energy-efficient planar light source device of a kind of large tracts of land as claimed in claim 1, it is characterized in that: the material of leaded light reflector adopts transparent organic polymer material, is polymethyl methacrylate PMMA or polycarbonate or polyethylene or polyphenylene sulfide or polyvinyl chloride.
7. the energy-efficient planar light source device of a kind of large tracts of land as claimed in claim 1 is characterized in that: the front on leaded light reflector surface is that miniature point pushes away or hemispheric astigmatic array structure, and back side coating high reflectivity film aluminium film is formed miniature lattice structure.
8. the energy-efficient planar light source device of a kind of large tracts of land as claimed in claim 1, it is characterized in that: light-passing board adopts the organic polymer material or the glass of high permeability, and organic polymer material is polymethylacrylic acid PMMA or polycarbonate or polyethylene or polyphenylene sulfide or polyvinyl chloride.
9. the energy-efficient planar light source device of a kind of large tracts of land as claimed in claim 1 is characterized in that: the area decision LED number n of planar light source, can adopt serial or parallel connection between the LED.
10. the energy-efficient planar light source device of a kind of large tracts of land as claimed in claim 1, it is characterized in that: each required voltage of LED is Vu=3.0 ± 0.5V, when input voltage was Vi, the LED number unit that can connect at most was ne=Vi/Vu-0.5, connected between the unit to adopt parallel connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200406967U CN2795650Y (en) | 2005-04-07 | 2005-04-07 | Large area high efficiency energy saving plane light source device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200406967U CN2795650Y (en) | 2005-04-07 | 2005-04-07 | Large area high efficiency energy saving plane light source device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2795650Y true CN2795650Y (en) | 2006-07-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005200406967U Expired - Fee Related CN2795650Y (en) | 2005-04-07 | 2005-04-07 | Large area high efficiency energy saving plane light source device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2795650Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8220944B2 (en) | 2007-07-19 | 2012-07-17 | Samsung Led Co., Ltd. | Backlight unit |
-
2005
- 2005-04-07 CN CNU2005200406967U patent/CN2795650Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8220944B2 (en) | 2007-07-19 | 2012-07-17 | Samsung Led Co., Ltd. | Backlight unit |
| US8764212B2 (en) | 2007-07-19 | 2014-07-01 | Samsung Electronics Co., Ltd. | Backlight unit |
| US9519184B2 (en) | 2007-07-19 | 2016-12-13 | Samsung Electronics Co., Ltd. | Backlight unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Suzhou Jingneng Technology Co., Ltd. Assignor: Najing Science & Technology Co., Ltd., Shanghai Contract fulfillment period: 2009.11.3 to 2014.11.3 Contract record no.: 2009310000300 Denomination of utility model: Large area high efficiency energy saving plane light source device Granted publication date: 20060712 License type: Exclusive license Record date: 20091120 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.11.3 TO 2014.11.3; CHANGE OF CONTRACT Name of requester: SUZHOU JINNO SCIENCE AND TECHNOLOGY CO., LTD. Effective date: 20091120 |