CN202092074U - Heat radiation apparatus for large power LED light source - Google Patents
Heat radiation apparatus for large power LED light source Download PDFInfo
- Publication number
- CN202092074U CN202092074U CN2011201451861U CN201120145186U CN202092074U CN 202092074 U CN202092074 U CN 202092074U CN 2011201451861 U CN2011201451861 U CN 2011201451861U CN 201120145186 U CN201120145186 U CN 201120145186U CN 202092074 U CN202092074 U CN 202092074U
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- China
- Prior art keywords
- light source
- fin
- led light
- heat radiation
- power led
- Prior art date
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- Expired - Fee Related
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- 230000005855 radiation Effects 0.000 title claims abstract description 12
- 239000000758 substrate Substances 0.000 claims abstract description 19
- 238000001149 thermolysis Methods 0.000 claims description 3
- 239000000428 dust Substances 0.000 abstract description 2
- 239000012535 impurity Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 6
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
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- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
A heat radiation apparatus for a large power LED light source includes a substrate covering on the bottom surface of the LED light source for heat radiation. The substrate is connected with fins for heat radiation; the middle of the substrate is connected with a frustum type fin; and the periphery of the frustum type fin is provided with radiate slice type fins with the frustum type fin as the center. The utility model is advantageous in that the heat radiation speed and the heat radiation efficiency is enhanced, the structure of the light is simplified, impurity and dust is not easy to accumulate, and the heat radiation apparatus can be guaranteed to work effectively.
Description
Technical field
The utility model relates to a kind of heat abstractor, particularly a kind of heat abstractor of high-power LED light source.
Background technology
Along with improving constantly of LED luminous efficiency, led light source is just demonstrating application prospects with its remarkable advantages, as the application of the lighting of road, tunnel, view etc.The lighting that with the great power LED is light source is a hot research in recent years.Because the luminous particularity of LED, its chip will produce considerable heat in luminous process.And these heats can cause the optical attenuation of led chip, have promptly reduced luminous efficiency, when optical attenuation is serious even LED was lost efficacy.These have all seriously restricted exploitation and the application of led light source in light fixture.Therefore heat radiation is that led light source needs one of problem that emphasis solves.Realize the two kinds of ways that mainly contain of high-power LED light source at present, a kind of is a plurality of low-power LED light sources of combination, generally reaches up to a hundred even hundreds of, complex circuit designs.Another kind is directly to use integrated packaged type high-power LED light source, and price comparison is expensive.These two kinds all inevitably will be with heat dissipation design and functional reliability as main design consideration.
At present common led light source heat abstractor is at a plurality of low-power LED light sources of combination.Because low-power LED adopts the array combination mode, what produced is equally distributed low-power thermal source, so Design of for heat sinks is comparatively simple, satisfies radiating and cooling easily to desired scope.And integrated packaged type high-power LED light source has produced a large amount of concentrated heats in the light time of output ideal tensile strength, and this has higher requirement to radiator.
Summary of the invention
The utility model will solve the heat dissipation problem of integrated packaged type great power LED, and the heat abstractor of a kind of good heat dissipation effect, the uniform high-power LED light source of exothermic temperature is provided.
The utility model adopts following technical scheme:
The heat abstractor of high-power LED light source, comprise the substrate that is used for heat conduction that is covered on the led light source bottom surface, be connected with the fin of thermolysis on the described substrate, it is characterized in that: what connect in the middle of the described substrate is frustum formula fin, and it is the sheet type fin that the center is radiation shape that the circumferential distribution of described frustum formula fin has with it.
Further, described sheet type fin is the streamlined fin that is connected into by arc and linear, and the arc protrusion direction is identical.
Described sheet type fin also can be full arc shape or whole line shape, but the streamlined fin that effect is not connected to form by arc and linear is good.And full arc shape fin is processed difficulty.Thus, the streamlined fin that is connected to form of arc and linear preferably.
Described substrate carries out the shape-designing of light fixture as the lamp housing of light fixture, and the fin that substrate connected also will be as the part of light fitting shape, and it directly contacts with air and helps taking away of heat.The heat that the high-power LED light source center produces is the most concentrated, adopts frustum formula fin, and is bigger with the contact area of air, with cross-ventilation heat exchange better effects if, more helps concentrating the quick heat radiating of heat.
The individual shapes of described radiating fin, quantity and moulded be according to the heating power of led light source and light fitting shape decision.The type of attachment of the layout of fin, fin and substrate is according to thermal conduction study and hydromechanical result of calculation analysis and obtain.
Advantage of the present utility model:
1, by heat-conducting substrate the heat of led light source is transmitted to fin apace, reaches the purpose of heat radiation, it is simple in structure, safe in utilization.
2, the fin and the effective layout that have special shape, the aerodynamic principle helps the quick heat exchange of fin and air, has improved radiating rate and radiating efficiency.
3, moulding is heat-radiating integrated.Heat abstractor has not only played the quick heat radiating effect, and has played lamp housing, has simplified fitting structure, has strengthened radiating effect.
4, keep the unobstructed of flow field between the fin, do not have flow blind angle, help flowing and rainwash of air, the impurity dust is difficult for piling up, and makes the radiating efficiency that does not influence fin, and the assurance radiator is effectively worked.
Description of drawings
Fig. 1 is the decomposition texture schematic diagram of the utility model user mode.
Fig. 2 is the representative configuration mode of radiating fin of the present utility model.
The specific embodiment
With reference to Fig. 1, Fig. 2, the heat abstractor of high-power LED light source, comprise the substrate that is used for heat conduction 2 that is covered on led light source 1 bottom surface, be connected with the fin 3,4 of thermolysis on the described substrate 2, what connect in the middle of the described substrate 2 is frustum formula fin 4, and it is the sheet type fin 3 that the center is radiation shape that the circumferential distribution of described frustum formula fin 4 has with it.
Described sheet type fin 3 is the streamlined fins that connected into by arc and linear, and the arc protrusion direction is identical.
Described substrate carries out the shape-designing of light fixture as the lamp housing of light fixture, and the fin that substrate connected also will be as the part of light fitting shape, and it directly contacts with air and helps taking away of heat.The heat that the high-power LED light source center produces is the most concentrated, adopts frustum formula fin, and is bigger with the contact area of air, with cross-ventilation heat exchange better effects if, more helps concentrating the quick heat radiating of heat.
The individual shapes of described radiating fin, quantity and moulded be according to the heating power of led light source and light fitting shape decision.The type of attachment of the layout of fin, fin and substrate is according to thermal conduction study and hydromechanical result of calculation analysis and obtain.
The described content of this specification embodiment only is enumerating the way of realization of utility model design; protection domain of the present utility model should not be regarded as only limiting to the concrete form that embodiment states, protection domain of the present utility model also reach in those skilled in the art according to the utility model design the equivalent technologies means that can expect.
Claims (2)
1. the heat abstractor of high-power LED light source, comprise the substrate that is used for heat conduction that is covered on the led light source bottom surface, be connected with the fin of thermolysis on the described substrate, it is characterized in that: what connect in the middle of the described substrate is frustum formula fin, and it is the sheet type fin that the center is radiation shape that the circumferential distribution of described frustum formula fin has with it.
2. the heat abstractor of high-power LED light source according to claim 1, it is characterized in that: described sheet type fin is the streamlined fin that is connected into by arc and linear, and the arc protrusion direction is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201451861U CN202092074U (en) | 2011-05-10 | 2011-05-10 | Heat radiation apparatus for large power LED light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201451861U CN202092074U (en) | 2011-05-10 | 2011-05-10 | Heat radiation apparatus for large power LED light source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202092074U true CN202092074U (en) | 2011-12-28 |
Family
ID=45367141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201451861U Expired - Fee Related CN202092074U (en) | 2011-05-10 | 2011-05-10 | Heat radiation apparatus for large power LED light source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202092074U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990043A (en) * | 2015-06-04 | 2015-10-21 | 佛山市南海区联合广东新光源产业创新中心 | LED lamp heat dissipation structure |
-
2011
- 2011-05-10 CN CN2011201451861U patent/CN202092074U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990043A (en) * | 2015-06-04 | 2015-10-21 | 佛山市南海区联合广东新光源产业创新中心 | LED lamp heat dissipation structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111228 Termination date: 20140510 |