CN101476681A - Reflection surface self-cooling LED indoor illumination device - Google Patents
Reflection surface self-cooling LED indoor illumination device Download PDFInfo
- Publication number
- CN101476681A CN101476681A CNA2009100369439A CN200910036943A CN101476681A CN 101476681 A CN101476681 A CN 101476681A CN A2009100369439 A CNA2009100369439 A CN A2009100369439A CN 200910036943 A CN200910036943 A CN 200910036943A CN 101476681 A CN101476681 A CN 101476681A
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- CN
- China
- Prior art keywords
- led
- convex surface
- circuit board
- illumination device
- wiring board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/0008—Reflectors for light sources providing for indirect lighting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/005—Reflectors for light sources with an elongated shape to cooperate with linear light sources
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/02—Arrangement of electric circuit elements in or on lighting devices the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
- F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Abstract
The invention provides a reflecting surface self radiating LED indoor illuminating lamp, which comprises a circuit board, an LED and a reflecting shade for reflecting an LED light source; the reflecting surface of the reflecting shade is a convex surface; the LED is arranged on the circuit board, and a clearance is reserved between the circuit board and the convex surface; the LED is positioned between the convex surface and the circuit board; one side of the circuit board facing to the convex surface is coated with a reflecting layer and the circuit board is an aluminum substrate; the LED is directly welded on the aluminum substrate; and the circuit board is connected with a circuit power supply through a conducting wire; and the circuit power supply is separated from the circuit board. The convex surface of the invention disperses the light from the LED, so that the convergent light is dispersed, the irradiation range is enlarged, and light is uniform in spacial range with the reflection of the reflecting layer. The LED is positioned between the convex surface and the circuit board, the aluminum substrate is exposed in the air so as to form good heat radiation and air convection; and the illuminating lump has the advantages of simple structure, good radiation effect, uniform illumination, and the like.
Description
Technical field
The present invention relates to the LED lighting technical field, especially relate to a kind of reflection surface self-cooling LED indoor illumination device.
Background technology
Multiple advantages such as along with the development of led technology, the great power LED technology reaches its maturity, and it has the luminous flux height, the life-span is long, reliability is high, energy-conservation are the most potential light sources that substitutes existing lighting source.Existing LED light fixture generally be a plurality of power-type LEDs to be concentrated on the light fixture use, so the heat radiation of LED becomes a key factor that influences LED light fixture user mode and life-span.But existing LED light fixture generally adopts enclosed structure, and the heat of light source and driving power can not distribute timely and effectively, though the light fixture that has also designs special radiator structure, and common complex structure, radiating effect is not good.In addition, in the existing high-power LED lamp, led light source generally is directly to be provided with towards ground, and the light that LED shoots out is inhomogeneous, and is bigger to the human eye stimulation, has a strong impact on the illuminating effect of LED light fixture, watches for a long time, causes that easily visual fatigue even eyesight descend.
Summary of the invention
Technical problem to be solved by this invention is to overcome existing LED light fixture above shortcomings, and more evenly reflection surface self-cooling LED indoor illumination device of a kind of simple in structure, good heat dissipation effect, illumination is provided.The present invention is achieved through the following technical solutions:
A kind of reflection surface self-cooling LED indoor illumination device, comprise wiring board, LED and be used to reflect the reflection shield of LED light, the convex portions of the light-emitting area of described LED on the reflection shield, the LED welding in the circuit board, and leave the gap between wiring board and the convex surface, LED is between described convex surface and wiring board.
In the above-mentioned reflection surface self-cooling LED indoor illumination device, described convex surface is smooth surface (a non-rough convex surface).
In the above-mentioned reflection surface self-cooling LED indoor illumination device, described convex surface is by circular arc, hyperbola, and parabola, ellipse, or back translation is made up in its segmentation or rotation forms.
In the above-mentioned reflection surface self-cooling LED indoor illumination device, the light-emitting area of described LED is over against convex surface.
In the above-mentioned reflection surface self-cooling LED indoor illumination device, described wiring board scribbles reflector layer towards a side of convex surface.
In the above-mentioned reflection surface self-cooling LED indoor illumination device, described wiring board is an aluminium base, and LED directly is welded on the aluminium base.
In the above-mentioned reflection surface self-cooling LED indoor illumination device, described wiring board is connected with circuit power by lead, circuit power with and wiring board be spaced apart.
Illuminator of the present invention (LED) is arranged on described convex surface below with certain spacing, in any way LED is placed on the convex surface below, and convex surface is dispersed the light of LED, adds the reflection of reflector (side panel of reflection shield), makes light become even in spatial dimension.
LED is welded on the aluminium base of printed circuit, and aluminium base is derived the heat of LED fast.Described LED is towards the reflective surface of described reflection shield.
The front and the side of described wiring board scribble reflector layer.
The invention has the beneficial effects as follows:
Reflection shield of the present invention has adopted convex surface as reflective surface, but not rough reflective surface.Convex surface is that the LED light of relatively concentrating is dispersed, and concave surface is that the light of LED is assembled.Existing reflector also is that the light of LED is assembled, and reflection shield convex surface of the present invention is that the LED light of relatively concentrating is dispersed, the side light barrier is the light that reflection is launched from side, only combine with the plane with convex surface or convex surface, without concave surface, because of concave surface is that light is assembled, the global shape that the design is used for divergent rays is a reflection shield, is not traditional reflector.Even traditional reflector adopts scraggly convex surface also not reach effect of the present invention, because light is dispersed the back to be assembled light at two adjacent concave surface places of convex surface, and traditional bowl structure on the whole can further be assembled light again, and its reflective mechanism is different with the present invention with design concept.
Because several LED of the present invention are the reflective surface settings towards reflection shield, all light from led light source are reflections of this reflection shield of process earlier, directive ground again, therefore illumination is more even, LED penetrates very strong light on very little area, this high light is easy to injure human eye, and the general light of the high-power LED lamp that the design has effectively avoided common employing led light source to be provided with towards ground compares rendezvous problem.The reflective surface of described reflection shield is a convex surface, and the outer surface that utilizes convex surface has increased the reflection of light angle as light reflection surface, makes under the constant situation of total luminous flux ground, and light evenly disperses, and irradiation range enlarges.The wiring board that is welded with LED among the design exposes in air, forms good heat radiation and convection current, and power supply and LED separate placement simultaneously, and simple design has solved the heat dissipation problem of LED.
Because the front of circuit board of the present invention scribbles reflector layer, can reduce the barrier effect of this strip circuit plate to the reflected back reflection shield once more of the reflection ray on this strip circuit plate to greatest extent to light.
Because the present invention directly utilizes cross-ventilation to realize that radiating effect is splendid from heat radiation, efficiently solve the bad problem of closed LED light fixture heat radiation of common employing on-chip power, prolonged the service life of LED light fixture, and fitting structure is simple, can save material, reduces cost.
Description of drawings
The present invention is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the agent structure schematic diagram of indoor illumination in the embodiment.
Fig. 2 is the structural relation schematic diagram between LED, wiring board and the convex surface among Fig. 1.
Fig. 3 is the structural representation of reflection shield opening down time the among Fig. 1.
Fig. 4 is the cross sectional representation of agent structure shown in Figure 1.
Fig. 5 is the power supply schematic diagram among Fig. 1.
The specific embodiment
Consult Fig. 1 to shown in Figure 5, the preferred embodiment of a kind of reflection surface self-cooling LED indoor illumination device of the present invention, but embodiments of the present invention are not limited thereto.
In this example, the reflection surface self-cooling LED indoor illumination device main body is made up of reflection shield 1, illuminator 9, driving power 5 (for wiring board and LED provide power supply) and dividing plate 4, the end face 1a of reflection shield 1, promptly over against being of the convex surface of the opening of reflection shield 1 a columniform part (the crossing curve of the cross section of this convex surface and reflection shield is a circular arc), four sides of reflection shield are outward-dipping plane, one hole 7 is arranged on the left surface 1d, through hole as lead 6,3 holes are respectively arranged, as the patchhole of dividing plate 4 on leading flank 1b and the trailing flank 1c.The bar shaped illuminator be arranged on this end face 1a (being convex surface) under, illuminator 9 comprises strip circuit plate 2 (being wiring board), be welded on several LED3 on this strip circuit plate, LED is disposed on the bar shaped wiring board, and be positioned at the below of convex surface, dividing plate 4 is used to support bar shaped wiring board 2, this bar shaped illuminator 9 comprises strip circuit plate 2, be welded on several LED3 on this strip circuit plate, LED3 is in the face of the end face 1a of reflection shield, according to the actual illumination needs, the front of strip circuit plate 2 scribbles reflector layer.Driving power 5 (referring to Fig. 5) is arranged in the groove of end face 1a of reflection shield 1, and itself and wiring board are spaced apart, and links to each other with an end of strip circuit plate 2 with through hole 7 by lead 6.Wiring board adopts aluminium base in the present embodiment, and its shape can in conjunction with structure of the present invention, can realize better heat radiating effect by cross-ventilation for the shape of existing fin.
The reflective convex surface of reflection shield of the present invention (being the end face of reflection shield 1) can also be the part (as hemispherical) of sphere.Certainly, the reflective convex surface of reflection shield can also be other level and smooth curved surfaces, mainly is by circular arc, hyperbola, and parabola, ellipse, or it makes up translation or rotation forms.
Claims (6)
1, a kind of reflection surface self-cooling LED indoor illumination device, comprise wiring board, LED and be used to reflect the reflection shield of led light source, the convex portions of the light-emitting area that it is characterized in that LED on the reflection shield, the LED welding in the circuit board, and leave the gap between wiring board and the convex surface, LED is between described convex surface and wiring board.
2, reflection surface self-cooling LED indoor illumination device according to claim 1, the convex portions that it is characterized in that described reflection shield is a smooth surface.
3, reflection surface self-cooling LED indoor illumination device according to claim 2, the convex shape that it is characterized in that described reflection shield are to be formed by circular arc, hyperbola, parabola, ellipse or their combination translation or rotation.
4,, it is characterized in that described wiring board scribbles reflector layer towards a side of convex surface according to each described reflection surface self-cooling LED indoor illumination device of claim 1～3.
5, reflection surface self-cooling LED indoor illumination device according to claim 4 is characterized in that described wiring board is an aluminium base, and LED directly is welded on the aluminium base.
6, reflection surface self-cooling LED indoor illumination device according to claim 5 is characterized in that described wiring board is connected with circuit power by lead, and circuit power and wiring board are spaced apart.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100369439A CN101476681B (en) | 2009-01-23 | 2009-01-23 | Reflection surface self-cooling LED indoor illumination device |
| PCT/CN2010/070340 WO2010083777A1 (en) | 2009-01-23 | 2010-01-22 | Reflecting surface self-radiation led indoor lighting lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100369439A CN101476681B (en) | 2009-01-23 | 2009-01-23 | Reflection surface self-cooling LED indoor illumination device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101476681A true CN101476681A (en) | 2009-07-08 |
| CN101476681B CN101476681B (en) | 2011-12-14 |
Family
ID=40837432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100369439A Active CN101476681B (en) | 2009-01-23 | 2009-01-23 | Reflection surface self-cooling LED indoor illumination device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101476681B (en) |
| WO (1) | WO2010083777A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010083777A1 (en) * | 2009-01-23 | 2010-07-29 | 华南师范大学 | Reflecting surface self-radiation led indoor lighting lamp |
| WO2012065417A1 (en) * | 2010-11-18 | 2012-05-24 | 香港应用科技研究院有限公司 | Light reflector and lighting system with light reflector |
| WO2013029522A1 (en) * | 2011-08-29 | 2013-03-07 | Wei Zihan | Reflective surface led lighting |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6758582B1 (en) * | 2003-03-19 | 2004-07-06 | Elumina Technology Incorporation | LED lighting device |
| CN2634283Y (en) * | 2003-06-06 | 2004-08-18 | 孙涛 | Lamp with mirror surface reflector |
| US20050146890A1 (en) * | 2004-01-05 | 2005-07-07 | Shih-Hsiung Wu | Vehicle light with a large illumination area |
| CN2699114Y (en) * | 2004-05-18 | 2005-05-11 | 胡晓松 | Luminous lamp holder |
| KR100665005B1 (en) * | 2004-12-30 | 2007-01-09 | 삼성전기주식회사 | Backlight system having leds |
| CN2906308Y (en) * | 2005-09-20 | 2007-05-30 | 孙奇 | Low-voltage electric-power storage type combined reflecting illumination device |
| CN101476681B (en) * | 2009-01-23 | 2011-12-14 | 华南师范大学 | Reflection surface self-cooling LED indoor illumination device |
| CN201368355Y (en) * | 2009-01-23 | 2009-12-23 | 华南师范大学 | LED indoor illuminating lamp with self-heat radiation reflective surface |
-
2009
- 2009-01-23 CN CN2009100369439A patent/CN101476681B/en active Active
-
2010
- 2010-01-22 WO PCT/CN2010/070340 patent/WO2010083777A1/en active Application Filing
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010083777A1 (en) * | 2009-01-23 | 2010-07-29 | 华南师范大学 | Reflecting surface self-radiation led indoor lighting lamp |
| WO2012065417A1 (en) * | 2010-11-18 | 2012-05-24 | 香港应用科技研究院有限公司 | Light reflector and lighting system with light reflector |
| WO2013029522A1 (en) * | 2011-08-29 | 2013-03-07 | Wei Zihan | Reflective surface led lighting |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2010083777A1 (en) | 2010-07-29 |
| CN101476681B (en) | 2011-12-14 |
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| C14 | Grant of patent or utility model | ||
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Owner name: WANG WENLI Free format text: FORMER OWNER: SOUTH CHINA NORMAL UNIVERSITY Effective date: 20140410 |
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Free format text: CORRECT: ADDRESS; FROM: 510630 GUANGZHOU, GUANGDONG PROVINCE TO: 510000 GUANGZHOU, GUANGDONG PROVINCE |
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Effective date of registration: 20140410 Address after: 510000 No. 193 Huajing North Road, Guangdong, Guangzhou Patentee after: Wang Wenli Address before: 510630 Guangdong city of Guangzhou province Tianhe District Shipai Patentee before: South China Normal University |