CN1844735A - Superhigh brightness LED lighting apparatus with forced air cooling - Google Patents
Superhigh brightness LED lighting apparatus with forced air cooling Download PDFInfo
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- CN1844735A CN1844735A CNA2006100461944A CN200610046194A CN1844735A CN 1844735 A CN1844735 A CN 1844735A CN A2006100461944 A CNA2006100461944 A CN A2006100461944A CN 200610046194 A CN200610046194 A CN 200610046194A CN 1844735 A CN1844735 A CN 1844735A
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Abstract
The invention relates to an ultra-brightness light emitting diode device with forced wind cooling, which comprises a switch driving power source for outputting constant current, a light emitting diode arrange, a temperature controller, a relay and a fan. Wherein, the light emitting diode array is on the heat-emission board and connected to the output circuit of switch driving power source; the temperature detector of temperature controller is connected to the heat-emission board; the control end of temperature controller is connected to the circuit of relay; the output of relay is connected to the fan that arranged relative to the heat-emission board. The invention uses fan to be forced refrigerating; uses small LED to emit heat effectively, and limits temperature increase. The connecting part of heat conductor uses thermal conductive silicone grease, to strengthen the heat conduction. And it uses switch power resource to drive ultra-brightness light emitting diodes to limit over current and reduce temperature.
Description
One, technical field: the present invention relates to a kind of lighting device, particularly a kind of diode illuminating device that utilizes the fan refrigeration.
Two, background technology: light emitting diode (Light Emitting Diode, be abbreviated as LED) be a kind of light emitting semiconductor device that electric energy can be changed into luminous energy, belong to novel solid state light emitter, meet the requirement of green illumination, be a kind of light efficiency height, life-span length, safety, microminiaturization, rich color, of a great variety, be not afraid of flicker, regulation and control are convenient and the electric lighting element of stable performance, and huge integrated cost advantage is arranged in actual applications.Now, begun aspect high-power illumination, to obtain to use.And will replace light sources such as fluorescent lamp that mercurous and discarded fluorescent tube can cause environmental pollution, mercury lamp.LED does not have pollution problem, is the light source of a kind of " cleaning ".Since yet LED came out in early 1960s, how based on redness, luminous efficiency was low, and the LED that luminous flux is little can only make indicator lamp and instrument display uses.Along with the continuous progress of die material, structure and encapsulation technology, succeeding in developing of the white light LEDs of high light efficiency, high brightness makes LED become possibility in the application of lighting field.
Advance in the past few years, domestic development light emitting diode illuminating apparatus with surging forward, tentatively enter the practical stage, yet on performance and price, also there are many problems, as the φ 10mm of extensive employing or the big caliber LED price height more than the φ 10mm, heat is concentrated during work, heat radiation is slow, and arrangement is restricted, and the too high meeting of temperature rise descends big caliber LED light efficiency significantly, the lost of life, difficulty can be brought into play its comprehensive advantage, and especially to surpass the superhigh brightness LED of 20cad very strong to the sensitiveness of temperature for light efficiency, along with its light efficiency of rising of temperature can greatly reduce, the lost of life is even the high temperature impact of moment also can cause irreversible consequence.
Three, summary of the invention:
1, goal of the invention: the invention provides a kind of superhigh brightness LED lighting apparatus that has air blast cooling, its objective is and solve light emitting diode that present light emitting diode illuminating apparatus do not have refrigeration part and adopt big caliber as light source, heat is concentrated during work, heat radiation is slow, arrangement diode is restricted, and the influence that is subjected to temperature rise is big and cause the light emitting diode light efficiency to reduce and the problem of aspects existence such as lifetime.
2, technical scheme: the present invention is achieved through the following technical solutions:
A kind of superhigh brightness LED lighting apparatus that has air blast cooling, it comprises the switch drive power supply of exporting constant current and is arranged on light emitting diode matrix on the heat-radiating substrate, light emitting diode matrix is connected with the circuit of output terminal of switch drive power supply, it is characterized in that: this lighting device is provided with temperature controller, relay and fan; The temperature probe of temperature controller contacts with heat-radiating substrate, and the control end of temperature controller is connected with relay circuit, and the output of relay is connected with fan circuit, and fan is fixed on the corresponding position of heat-radiating substrate of light emitting diode matrix and setting thereof.
It is the tubule footpath diode of 5mm that light emitting diode in the light emitting diode matrix adopts diameter, and light emitting diode matrix adopts the multiple spot matrix-style to arrange.
Light emitting diode matrix and the heat-radiating substrate that it is set are located in heat radiation lampshade one end, the heat radiation lampshade is made of transparent face mask and heat radiation back plate, heat radiation back plate is provided with the strip vent, heat-radiating substrate closely contacts with heat radiation back plate, heat-radiating substrate and heat radiation back plate contact position coating heat-conducting silicone grease layer, fan is arranged on the other end in the heat radiation lampshade, the position of the heat-radiating substrate of the air outlet of fan and light emitting diode matrix and setting thereof and heat radiation back plate is corresponding, is provided with fresh air inlet with the corresponding transparent face mask of the air intake vent end of fan.
3, advantage and effect: by the enforcement of technical solution of the present invention, can solve light emitting diode that present light emitting diode illuminating apparatus do not have refrigeration part and adopt big caliber well as light source, heat is concentrated during work, heat radiation is slow, arrangement diode is restricted, and the influence that is subjected to temperature rise is big and cause the light emitting diode light efficiency to reduce and the problem of aspects existence such as lifetime.Advantage of the present invention and effect are as follows: when (1) reached setting value when temperature rise, the temperature detect switch (TDS) startup fan by temperature controller carried out air blast cooling to LED and connected heat-radiating substrate; (2) obvious energy-saving effect: if after adopting luminous efficiency to surpass 100 lumen high-power white light-emitting diodes, the power savings advantages of its illumination can be more obvious; (3) adopting the small-power superhigh brightness LED to make the multiple spot matrix-style arranges, make spread heat, be convenient to the heat conduction, the restriction temperature rise, the light fixture of forming than high-power single tube LED under equal conditions, improve light efficiency and light intensity, reduced cost, improved radiating condition, the shape of malleable lamp decoration more, be convenient to the layout of lamp decoration, manufacture the light fixture of different series, obtained comprehensive technology and price advantage; (4) adopt heat-conducting silicone grease in the heat carrier coupling part, to add the heat-flash conduction; (5) improved service life significantly; (6) complexity of being convenient to lamp decoration is controlled, and is easy to optimize its control circuit; (7) adopt Switching Power Supply and current-sharing measure, make light emitting diode keep constant electric current, avoid the overload heating, damage light emitting diode; (8) reached better heat radiating effect, big caliber, the great power LED of concentrating than the heat rapid heat radiation that more is easy to do, adopt the Switching Power Supply of constant current, volume is little, in light weight, be beneficial to the dc source miniaturization, the restriction overcurrent, reduce temperature rise, application flexibility improves, wide accommodation, can be applicable to use occasions such as street lamp, mine lamp.Product of the present invention enters the production phase now, fully can industrialized implementation, produce social benefit fast.
Four, description of drawings: accompanying drawing 1 is structural representation of the present invention;
Accompanying drawing 2 is a heat radiation lampshade inner structure schematic diagram of the present invention;
Accompanying drawing 3 is a heat radiation lampshade rearview of the present invention;
Accompanying drawing 4 is a heat radiation lampshade side view of the present invention.
Five, the specific embodiment:
The present invention is a kind of superhigh brightness LED lighting apparatus that has air blast cooling, the temperature controller of the light emitting diode matrix that it mainly is made up of the tubule footpath light emitting diode of the switch drive power supply of the constant electric current of output, φ 5mm, the heat-radiating substrate that light emitting diode matrix is set, temperature probe and heat-radiating substrate connection, relay and constitute with the fan of the corresponding setting of heat-radiating substrate.When the present invention works, the switch drive power supply provides constant current for the light emitting diode in the light emitting diode matrix, avoided it because current fluctuation produces temperature rise, reduce light efficiency, after the heat-radiating substrate temperature that diode array is set raises, pass to temperature controller by temperature probe, temperature controller is controlled fan work by relay, force to carry out air-cooled to the light emitting diode of heat-radiating substrate and upward setting thereof, the assurance light emitting diode is well being worked under the temperature conditions, reach maximum light efficiency and the longest service life, through the inventor repeatedly the contrast experiment prove, tradition does not adopt air blast cooling and uses the lighting device of diameter at 10mm or above light emitting diode, heat is concentrated in the lamp, temperature rise is fast, the temperature height, shorten dramatically the service life of big caliber light emitting diode, and adopt air blast cooling of the present invention and use the lighting device of the light emitting diode of the little caliber of φ 5mm, temperature Centralized degree in the lamp is low, help under the effect of fan, heat being taken away, reached more than 5 years the service life of the light emitting diode of little caliber, greatly reduce cost than conventional illuminator, it can be applicable to street lamp, mine lamp, view, advertisement and multiple public illumination occasion, reduction along with cost, safety is good, reliable high, and can enter domestic lighting in the near future.
Embodiment 1:
As shown in Figure 1, the present invention has the superhigh brightness LED lighting apparatus of air blast cooling, this lighting device can be used as the street lamp lighting device, and it comprises switch drive power supply, light emitting diode matrix, temperature controller, relay and the fan 5 of exporting constant current; The diameter of the light emitting diode 3 in the light emitting diode matrix is 5mm, they all select for use light efficiency to surpass the superhigh brightness LED of 20cad, they adopt the multiple spot matrix-style to arrange and are welded on the circuit board, be made into LED array module, heat-radiating substrate 2 is to make with the punching of 2 millimeters thick aluminium sheets, LED array module is embedded on the heat-radiating substrate 2, as shown in Figure 2, heat-radiating substrate is arranged in the heat radiation lampshade 1, as Fig. 3, shown in 4, heat radiation lampshade 1 is made of transparent face mask 8 and heat radiation back plate 6, heat radiation back plate 6 is provided with strip vent 7, heat-radiating substrate 2 closely contacts with heat radiation back plate 6, heat-radiating substrate 2 contacts for multiple spot under high-power microscope with heat radiation lampshade 1 contact portion, its contact-making surface only for tens of/one of face contact or still less, thermal resistance is increased, heat-conducting effect descends, just having formed real face behind heat-radiating substrate 2 and plate 6 contact positions, heat radiation back coating heat-conducting silicone grease layer 4 contacts, reach better radiating effect, fan 5 is arranged on the other end in the heat radiation lampshade 1, the air outlet of fan 5 is corresponding with the position of the heat-radiating substrate 2 of light emitting diode matrix and setting thereof and the back plate 6 that dispels the heat, be provided with fresh air inlet with the corresponding transparent face mask 8 of the air intake vent end of fan 5, light emitting diode matrix is pressed both positive and negative polarity insert the switch drive power supply, switch drive power supply primary side is by the time schedule controller control of export, by time schedule controller by the time sequencing of adjusting, the control that the switching mode driving power is opened and turn-offed, the temperature probe of temperature controller contacts with heat-radiating substrate 2, the control end of temperature controller is connected with relay circuit, the output of relay is connected with interior fan 5 circuit of lampshade 1 one ends that dispel the heat, temperature controller is realized air-cooled by relay control fan 5 to the heat-radiating substrate 2 at light emitting diode 3 places and the anti-plate 6 of heat radiation of the other end.Each technical indicator of the present invention is: (1) input voltage: exchange 220 volts; (2) output voltage: direct current n * (3～3.5 volts); (3) (single branch road) about forward operating current 〉=15mA; (4) operating ambient temperature :-20 degree～+ 40 degree; (5) luminous efficiency＞25～50LM:
Embodiment 2:
When the present invention is used for mine lamp, the size design of heat radiation lampshade is got final product for adapting with the safety cap that mine lamp is installed, also can it be set to circular configuration, other parts are with embodiment 1.
The course of work of the present invention is as follows: light emitting diode matrix is luminous under the driving of switch drive power supply, when temperature raises, the temperature probe of temperature controller becomes the signal of telecommunication with the temperature of the heat-radiating substrate that is attached thereto and passes to temperature controller, temperature controller sends control signal and makes the actuating of relay, relay control fan work, to with the heat-radiating substrate of fan correspondence position and the air blast cooling of heat radiation lampshade thereof, when temperature drops to the situation of light emitting diode operate as normal of setting, temperature controller quits work fan by relay, so repeatedly, reach good assurance light emitting diode light efficiency and life-span purpose.
Claims (3)
1, a kind of superhigh brightness LED lighting apparatus that has air blast cooling, it comprises the switch drive power supply of exporting constant current and is arranged on light emitting diode matrix on the heat-radiating substrate, light emitting diode matrix is connected with the circuit of output terminal of switch drive power supply, it is characterized in that: this lighting device is provided with temperature controller, relay and fan; The temperature probe of temperature controller contacts with heat-radiating substrate, and the control end of temperature controller is connected with relay circuit, and the output of relay is connected with fan circuit, and fan is fixed on the corresponding position of heat-radiating substrate of light emitting diode matrix and setting thereof.
2, according to the superhigh brightness LED lighting apparatus that has air blast cooling described in the claim 1, it is characterized in that: it is the tubule footpath diode of 5mm that the light emitting diode in the light emitting diode matrix adopts diameter, and light emitting diode matrix adopts the multiple spot matrix-style to arrange.
3, according to the superhigh brightness LED lighting apparatus that has air blast cooling described in the claim 1, it is characterized in that: light emitting diode matrix and the heat-radiating substrate (2) that it is set are located in heat radiation lampshade (1) one end, heat radiation lampshade (1) is made of transparent face mask (8) and heat radiation back plate (6), heat radiation back plate (6) is provided with strip vent (7), heat-radiating substrate (2) closely contacts with heat radiation back plate (6), heat-radiating substrate (2) and heat radiation back plate (6) contact position coating heat-conducting silicone grease layer (4), fan (5) is arranged on the interior other end of heat radiation lampshade (1), the position of the heat-radiating substrate (2) of the air outlet of fan (5) and light emitting diode matrix and setting thereof and heat radiation back plate (6) is corresponding, is provided with fresh air inlet with the corresponding transparent face mask (8) of the air intake vent end of fan (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100461944A CN1844735A (en) | 2006-03-28 | 2006-03-28 | Superhigh brightness LED lighting apparatus with forced air cooling |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100461944A CN1844735A (en) | 2006-03-28 | 2006-03-28 | Superhigh brightness LED lighting apparatus with forced air cooling |
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| Publication Number | Publication Date |
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| CN1844735A true CN1844735A (en) | 2006-10-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2006100461944A Pending CN1844735A (en) | 2006-03-28 | 2006-03-28 | Superhigh brightness LED lighting apparatus with forced air cooling |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101881404A (en) * | 2010-07-01 | 2010-11-10 | 王干 | Intelligently controlled forced convection radiation LED streetlamp system |
| CN102080815A (en) * | 2009-11-28 | 2011-06-01 | 任文华 | Radiating lamp |
| CN103017119A (en) * | 2011-06-17 | 2013-04-03 | 俞国宏 | Method for realizing control over LED (light emitting diode) illuminating and cooling system |
| CN104821724A (en) * | 2014-12-13 | 2015-08-05 | 襄阳精圣科技信息咨询有限公司 | Temperature-controlled non-isolated resonant converter |
-
2006
- 2006-03-28 CN CNA2006100461944A patent/CN1844735A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080815A (en) * | 2009-11-28 | 2011-06-01 | 任文华 | Radiating lamp |
| CN101881404A (en) * | 2010-07-01 | 2010-11-10 | 王干 | Intelligently controlled forced convection radiation LED streetlamp system |
| CN103017119A (en) * | 2011-06-17 | 2013-04-03 | 俞国宏 | Method for realizing control over LED (light emitting diode) illuminating and cooling system |
| CN103017119B (en) * | 2011-06-17 | 2013-11-06 | 俞国宏 | Method for realizing control over LED (light emitting diode) illuminating and cooling system |
| CN104821724A (en) * | 2014-12-13 | 2015-08-05 | 襄阳精圣科技信息咨询有限公司 | Temperature-controlled non-isolated resonant converter |
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