CN102235650A - High-power light-emitting diode (LED) radiator and using method thereof - Google Patents
High-power light-emitting diode (LED) radiator and using method thereof Download PDFInfo
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- CN102235650A CN102235650A CN2010101600461A CN201010160046A CN102235650A CN 102235650 A CN102235650 A CN 102235650A CN 2010101600461 A CN2010101600461 A CN 2010101600461A CN 201010160046 A CN201010160046 A CN 201010160046A CN 102235650 A CN102235650 A CN 102235650A
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- 238000000034 method Methods 0.000 title claims abstract description 9
- 239000000758 substrate Substances 0.000 claims abstract description 9
- 230000005855 radiation Effects 0.000 claims description 20
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 11
- 241000258971 Brachiopoda Species 0.000 abstract description 3
- 230000004907 flux Effects 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 4
- 230000000630 rising effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000005457 Black-body radiation Effects 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000010415 tropism Effects 0.000 description 1
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Abstract
The invention provides a high-power light-emitting diode (LED) radiator. The radiator comprises a radiating balance plate and a plurality of radiating fins which are arranged on the radiating balance plate, wherein the width of the radiating fins is greater than that of the radiating balance plate; and the two ends of each radiating fin can extend out of the edges of the radiating balance plate. In a using method for the high-power LED radiator, a heat-conducting substrate of a high-power LED light source is arranged on the radiating balance plate of the high-power LED radiator, and an air flow space is formed by a clearance space among the parts of the radiating fins exceeding the radiating balance plate, the side faces of the radiating balance plate, and the radiating fins; the width of the heat-conducting substrate of the LED light source is less than or equal to that of the radiating balance plate; and in order to enhance the radiating effect of an LED lamp, a lamp shell positioned above the LED radiator is provided with an air flow outlet, and a lamp shell positioned below the LED radiator is provided with an air flow inlet. The radiator can achieve a high-efficiency radiating effect.
Description
Technical field
The present invention relates to the great power LED cooling technical field, be specially high-power LED radiator and using method thereof.
Background technology
High-power LED light source can produce a large amount of heat energy, according to luminous flux (lumen) and radiation flux (watt) operation relation: Km=683lm/w may produce the 683lm luminous flux when the radiation flux (black body radiation) under optimal situation of 1w as can be seen from relational expression.Therefore, even the light efficiency of LED reaches 100lm/w, only 15% of whole energy are converted into luminous energy output only, and all the other energy of 85% all are converted into heat energy.The life-span of led light source and LED junction temperature are closely bound up, facts have proved that junction temperature is low more, and the performance of attenuation and life performance is good more, can reach 30000 hours as long as junction temperature is low to the life-span below 45 ℃ in theory; The optical efficiency of led light source can descend along with the rising of junction temperature, experimental data in each chip producer, the light efficiency of white light LEDs is roughly the same with the ratio that the rising of junction temperature descends, 20 ℃ of light efficiencies of the every rising of junction temperature will descend about 5%, when its light efficiency has only normal temperature when junction temperature surpasses 80 ℃ 70%, on the contrary its light efficiency is 120% of a normal temperature when junction temperature is-40 ℃.So led light source only becomes luminous energy to a spot of power conversion, most of energy generation heat and junction temperature be high more, and to convert luminous energy to few more, so the high-power LED light source heat dissipation problem seems extremely important.The heat dissipation problem of led light source will be a long-standing problem in the long term.
At present the radiating mode of high-power LED light source mainly contains: Natural Heat Convection, install fan forced heat radiation, heat pipe and loop heat pipe heat radiation etc. additional.The problem that may exist in the heat dissipation design has at present:
Fan radiating mode system complex, reliability is low, and the life-span of frequent fan is short more than chip, and industry is seldom used.
Emphasize heat conduction link, ignore the heat loss through convection link.
The heat that common radiator sends element by the mode of heat transmission is delivered on the radiator, in thermal-radiating mode heat is distributed again.This type of radiator is in order to increase heat-sinking capability, arbitrarily increase the radiating fin or the fin of its surface area, its materials and processing and fabricating cost can increase, though radiator and electronic component are fixed as one and have increased area of dissipation in addition, heat is produced to be piled up, the heat that is unfavorable for element surface in time scatters and disappears, and can have influence on radiating effect.
In certain space, be not that area of dissipation is the bigger the better, though area of dissipation has increased, it is long-pending also to have formed thermal capacitance simultaneously, hot stack is arrived together, thereby reduced radiating effect, its radiating efficiency can't be improved, and hot-air just gathers around radiator, because this type of radiator has only been emphasized hot conduction link, has been ignored the heat loss through convection link, in fact be temperature-uniforming plate, the thermal source samming is fallen, though there is a lot of radiating fin radiating efficiencys unsatisfactory.
Although numerous producers has considered various measures, heat pipe, loop heat pipe, add heat conduction silicon fat or the like, do not recognize that heat finally still will rely on the external surface area of light fixture to loose.
The heat pipe conductive performance is fine, but radiator performance also wants a complete radiator structure to realize.Emphasized heat radiation, ignored urban road landscape effect, no matter be die casting radiator, Section Bar Heat Sinks or heat-pipe radiator, their volume and outward appearance all are difficult to satisfy moulding attractive in appearance on the other hand.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of high-power LED radiator of new structure, and cooperates radiating effect and the using method that provides.
The technical scheme that solves the problems of the technologies described above employing is:
High-power LED radiator comprises heat radiation balancing disk and the multi-disc radiating fin that is arranged at, and the width of radiating fin is greater than the width of heat radiation balancing disk.
But the edge of radiating fin is extended at the radiating fin two ends respectively.
The profile of radiating fin can be a rectangle or trapezoidal or other are special-shaped, for cooperating the outline packages requirement of various light fixtures.
The using method of high-power LED radiator of the present invention,
Be specially:
The heat-conducting substrate of high-power LED light source is installed on the heat radiation balancing disk of high-power LED radiator, the part of the wide balancing disk that goes out to dispel the heat of radiating fin and heat radiation balancing disk side, and the clearance space of radiating fin constitutes airflow space.
The width of the heat-conducting substrate of led light source is less than or equal to the width of the balancing disk that dispels the heat.
For strengthening the radiating effect of LED light fixture, the lamp outer casing that is positioned at LED radiator top offers air stream outlet, and the lamp outer casing that is positioned at LED radiator below offers the air-flow air inlet.
Good effect of the present invention is: produce heat and make balancing disk heat after LED powers up, be transmitted to radiating fin by heat again and make that air heat forms hot gas between fin, under calm condition, hot-air is heated, and the back is basic vertically rises, form hot tropism's passage, for air provides kinetic energy and direction, hot gas rises by the fin space supplements cold of bottom and forms the effect that air-flow reaches high efficiency and heat radiation.
In addition with 60 of 3W large-power LED light beads, the constant current power supply mode, actual current 650mA, power supply input power 145W, LED actual power consumption 130W, the about 115W of actual heating power, 17 ℃ of environment temperatures, 37 ℃ of actual measurement soaking plate temperature show that this 3.8Kg aluminium alloy heat radiator and existing 10Kg radiator heat-dissipation effect are very approaching, radiator of the present invention can be saved great deal of raw materials, and it can alleviate the overall weight of light fixture when using.Because heat spreader structures of the present invention is simple, volume is little in light weight, fin can be made multiple shape, can pack in most conventional road lamp shells, helps the needs that urban road is beautified the environment.
Description of drawings
The structural representation of Fig. 1, high-power LED radiator of the present invention;
Fig. 2, high-power LED radiator occupation mode schematic diagram of the present invention.
The specific embodiment
The accompanying drawings specific embodiment, as shown in Figure 1 comprise heat radiation balancing disk 1 and be arranged at multi-disc radiating fin 2 on 1 that the width of radiating fin 2 is greater than the width of heat radiation balancing disk 1.
The edge of radiating fin 2 is extended at radiating fin 2 two ends respectively.
The profile of radiating fin 2 can be a rectangle.
The using method of high-power LED radiator of the present invention is that two groups of high-power LED radiators are used, and is specially:
The heat-conducting substrate of high-power LED light source is installed on the heat radiation balancing disk 1 of high-power LED radiator, the part of the radiating fin 2 wide balancing disks 1 that go out to dispel the heat and heat radiation balancing disk 1 side, and the clearance space of radiating fin 2 constitutes airflow space 3.
The width of the heat-conducting substrate of led light source is less than the width of heat radiation balancing disk.
For strengthening the radiating effect of LED light fixture, the lamp outer casing that is positioned at LED radiator top offers air stream outlet, and the lamp outer casing that is positioned at LED radiator below offers the air-flow air inlet.
The above is embodiments of the invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within the claim scope of the present invention.
Claims (5)
1. high-power LED radiator comprises heat radiation balancing disk (1) and is arranged at multi-disc radiating fin (2) on (1) that it is characterized in that: the width of radiating fin (2) is greater than the width of heat radiation balancing disk (1).
2. high-power LED radiator according to claim 1 is characterized in that: radiating fin (2) but the edge of radiating fin (2) is extended at two ends respectively.
3. can be rectangle or trapezoidal or other are special-shaped according to the profile of claim 1 or 2 radiating fins (2).
4. the using method of high-power LED radiator, it is characterized in that: the heat-conducting substrate of high-power LED light source is installed on the heat radiation balancing disk of high-power LED radiator, the part of the wide balancing disk that goes out to dispel the heat of radiating fin and heat radiation balancing disk side, and the clearance space of radiating fin formation airflow space, and the heat-conducting substrate width of led light source is less than or equal to the heat radiation balancing disk of high-power LED radiator.
The lamp outer casing that is positioned at LED radiator top offers air stream outlet, and the lamp outer casing that is positioned at LED radiator below offers the air-flow air inlet.
5. the using method of high-power LED radiator according to claim 4, it is characterized in that: the width of the heat-conducting substrate of led light source is less than or equal to the width of the balancing disk that dispels the heat.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101600461A CN102235650A (en) | 2010-04-30 | 2010-04-30 | High-power light-emitting diode (LED) radiator and using method thereof |
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| CN2010101600461A CN102235650A (en) | 2010-04-30 | 2010-04-30 | High-power light-emitting diode (LED) radiator and using method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105650566A (en) * | 2016-01-27 | 2016-06-08 | 佛山市南海区联合广东新光源产业创新中心 | LED headlamp with heat dissipation structure |
| CN107072115A (en) * | 2017-03-30 | 2017-08-18 | 深圳第创想电子商务有限公司 | A kind of improved radiating structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201289055Y (en) * | 2008-11-19 | 2009-08-12 | 浙江晶皓光电科技有限公司 | High power LED lamp heat radiator |
| CN101556035A (en) * | 2009-05-15 | 2009-10-14 | 中山大学 | Radiator structure of semiconductor lighting fixture |
| CN201351897Y (en) * | 2009-02-09 | 2009-11-25 | 索士亚科技股份有限公司 | Heat radiation structure of high-power LED projection lamp |
| CN201443694U (en) * | 2009-04-22 | 2010-04-28 | 郭培囵 | Radiating LED illuminating lamp of loop type heat-pipe radiator |
| CN201819168U (en) * | 2010-04-30 | 2011-05-04 | 杨继远 | High-power light-emitting diode (LED) radiator |
-
2010
- 2010-04-30 CN CN2010101600461A patent/CN102235650A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201289055Y (en) * | 2008-11-19 | 2009-08-12 | 浙江晶皓光电科技有限公司 | High power LED lamp heat radiator |
| CN201351897Y (en) * | 2009-02-09 | 2009-11-25 | 索士亚科技股份有限公司 | Heat radiation structure of high-power LED projection lamp |
| CN201443694U (en) * | 2009-04-22 | 2010-04-28 | 郭培囵 | Radiating LED illuminating lamp of loop type heat-pipe radiator |
| CN101556035A (en) * | 2009-05-15 | 2009-10-14 | 中山大学 | Radiator structure of semiconductor lighting fixture |
| CN201819168U (en) * | 2010-04-30 | 2011-05-04 | 杨继远 | High-power light-emitting diode (LED) radiator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105650566A (en) * | 2016-01-27 | 2016-06-08 | 佛山市南海区联合广东新光源产业创新中心 | LED headlamp with heat dissipation structure |
| CN107072115A (en) * | 2017-03-30 | 2017-08-18 | 深圳第创想电子商务有限公司 | A kind of improved radiating structure |
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