CN101363604A - Radiating module for LED lamp - Google Patents
Radiating module for LED lamp Download PDFInfo
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- CN101363604A CN101363604A CNA200810107211XA CN200810107211A CN101363604A CN 101363604 A CN101363604 A CN 101363604A CN A200810107211X A CNA200810107211X A CN A200810107211XA CN 200810107211 A CN200810107211 A CN 200810107211A CN 101363604 A CN101363604 A CN 101363604A
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- heat pipe
- heat sink
- led
- led lamp
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Abstract
The invention discloses a heat dissipating module of an LED lamp, which comprises a high power LED, a heat pipe, heat dissipating fins and a heat sink, wherein, the heat pipe is fixed in a groove of the heat sink, and the surfaces of both the exposed part of the heat pipe and the heat sink on in the same plane; the bottom part of the high power LED is fixed on the surfaces of both the exposed part of the heat pipe and the heat sink. The heat dissipating module of the LED lamp has the advantages of simple structure, cheap cost, being suitable to carry out the batch processing and production, and the like, thus being capable of solving the heat dissipating problem of the LED well, reducing the optical attenuation of the LED and increasing the service life.
Description
Technical field
The present invention relates to a kind of heat abstractor of light fixture, especially a kind of LED lamp radiating module that adopts heat pipe and heat sink structure to carry out dual heat radiation.
Technical background
Light emitting diode (LED) is as a kind of novel semi-conductor solid-state light source, has energy-saving and environmental protection, long service life, distinct advantages such as shock-resistant, is widely used in fields such as special lighting, traffic indication, demonstration backlight, decorative lighting.The low-power LED of tradition 60 milliwatts is because input power is little, and heat is low, so heat dissipation problem is not outstanding, solves easily.But along with the raising day by day of LED power, the great power LED more than 1 watt is because the energy overwhelming majority of input all is converted into heat, if radiating treatment is not good, very easily cause the temperature of led chip to raise, cause luminous efficiency to descend, problems such as look wafts, even LED was lost efficacy.Therefore for great power LED, radiating treatment seems of crucial importance efficiently.
At present, have a variety of at the high-power LED radiating mode on the market, wherein mainly contain two kinds: a kind of is great power LED directly to be fastened on the radiator of metal or alloy making such as copper, aluminium, because the thermal conductivity factor of copper, aluminium is higher, by radiator directly with the heat conduction and be dispersed in the air.The advantage of this kind method is that technology is simple, good stability, with low cost, but shortcoming is to be subjected to the restriction of volume and weight, is difficult to make the LED radiator more than 100 watts; Simultaneously, be subjected to the restriction of thermal conductivity, the distance of its heat conduction is limited, and led light source can only be fixed on the surface of radiator.Another kind is that LED directly is fixed on the heat pipe, directly with the radiating fin of heat transferred on heat pipe, utilizes cross-ventilation by heat pipe, fast heat is distributed.As being in " super heat-conductive pipe heat radiation great power LED lamp " patent of 200610085508.1 at application number, it mainly is that great power LED unit lamp with all watts level is fixed on the lamp housing by super heat-conductive pipe, also can radiator structure be set at the outer surface of lamp housing simultaneously.Though the LED radiator structure of this kind mode under the situation that does not influence heat-transfer effect, can be as required changes the light emission direction of LED.But heat pipe and LED, lamp housing to be connected technology very complicated, for the LED light fixture of open air use, adopt the designing requirement that degree of protection is difficult to reach behind the heat pipe, and less stable, cost is higher.
Summary of the invention
At above-mentioned the deficiencies in the prior art, the invention provides a kind of LED lamp radiating module.
To achieve these goals, the measure that the present invention taked is: a kind of LED lamp radiating module includes great power LED, heat pipe, radiating fin, heat sink, wherein said heat pipe is fixed in the heat sink groove, and the surface of heat pipe exposed section and heat sink surface are on same plane; The great power LED bottom is fixed on heat pipe exposed section and heat sink surface simultaneously;
The described heat sink flight that is provided with the cross section for " protruding " font;
Described heat sink surface is manufactured with fin;
Described heat pipe surface is fixed with radiating fin;
Described radiating fin is provided with the heat pipe hole, and the corner in the heat pipe hole is provided with the inclined-plane;
The cross section on described radiating fin inclined-plane is a circular arc.
Beneficial effect of the present invention: the present invention adopts heat pipe and the heat sink radiating mode that combines, and carries out dual quick heat radiating, is different from single heat pipe and heat sink heat radiation.By great power LED being fixed on heat sink and surface heat pipe, great power LED is directly contacted with heat sink, heat pipe.Heat sink except that being used for fixing heat pipe, can also play dustproof, waterproof effect, make degree of protection can reach more than the IP65; Be directed to the characteristics that the great power LED thermal source is concentrated, heat pipe can efficiently be derived heat fast, dispels the heat by radiating fin.On the structure of radiating fin, by the ramp structure in heat pipe hole in the radiating fin, make each radiating fin can be closely linked, form all linked with one anotherly, when increasing area of dissipation, reduce thermal resistance, improve radiating efficiency." protruding " font groove structure in heat sink, when fixing great power LED, can be directly with fixed by nut in groove, with screw light source is fixed, technology is simple and convenient, the reliability height.In heat sink processing, can adopt metal or alloy such as copper, aluminium to make, adopt the extrusion process one-shot forming.That the present invention has is simple in structure, with low cost, be suitable for advantages such as processing in batches and production, and heat dissipation problem that can fine solution LED reduces the LED light decay, improves service life.
Description of drawings
Fig. 1 is the schematic perspective view of a preferred embodiment of the present invention
Fig. 2 is the generalized section of a preferred embodiment of the present invention
Fig. 3 is the perspective exploded view of a preferred embodiment of the present invention
Fig. 4 is the schematic perspective view of radiating fin in a preferred embodiment of the present invention
Fig. 5 is the generalized section of another kind of preferred embodiment of the present invention
Label declaration
Led light source-1 heat pipe-2
Radiating fin-3 heat pipe hole-31
Screw hole-32 inclined-plane-33
Heat sink-4 grooves-41
Flight-42 fin-43
Reflector-5 lampshade-6
Capping-7 screw-8
Screw-9 compressing tablet-10
Nut-11
The specific embodiment
As shown in Figure 1, 2, 3, present embodiment mainly partly is made up of great power LED 1, heat pipe 2, radiating fin 3, heat sink 4, reflector 5, lampshade 6, capping 7 and compressing tablet 10 etc.Wherein, heat sink 4 are at thermal source place radiation fin or enlarge contact area to reach the purpose heat abstractor of heat radiation.Concave surface place heat sink 4 is provided with a plane, is provided with groove 41 in the plane, and groove 41 is the structure of similar circle, corresponding identical shaped heat pipe 2 and closely contact is installed.Groove 41 can be set to similar circle or square arbitrary shape, and the shape of heat pipe 2 is corresponding with it, and is fixed therein.Groove 41 and heat pipe 2 fixedly the time, be coated with soldering paste in both fixation procedure, make both weld the formation one after the heating, to reduce thermal resistance.Contact-making surface at groove 41 and heat pipe 2 also can adopt heat-conducting cream to apply, and is filled in the slit of both contact-making surfaces, improves radiating efficiency.
When fixing heat pipe 2, can push heat pipe 2 by machine after, again the surface of heat pipe 2 exposed sections is become same plane with heat sink 4 surface finish.After handling like this, can increase great power LED 1 and heat pipe 2 and heat sink 4 surface contact area to greatest extent, improve heat transfer efficiency.Wherein, the quantity of heat pipe 2 and shape are carried out conversion and adjusting according to the watt level of great power LED 1 and the shape of groove 41.
On heat sink 4 surface, be provided with flight 42, be positioned at heat pipe 2 around.In the present embodiment, be respectively arranged with two flights 42 in the both sides of heat pipe 2, flight 42 cross sections are for going up little " protruding " font structure down greatly.Wherein, the size of flight 42 and quantity are mediated according to the size and the installation site of actual screw.Be provided with fin 43 on heat sink 4 surface, be positioned at heat sink 4 the back side, direction is laterally or vertically to distribute, and also can be random distribution.Wherein, fin 43 surfaces are uneven, or are manufactured with rugged striped, can effectively increase area of dissipation, improve radiating efficiency.In heat sink 4 manufacturing process, can adopt metal or alloy such as copper, aluminium, by the extrusion process one-shot forming.
When fixing great power LED 1, nut 11 is fixed in the flight 42 of determining good position, 1 of great power LED corresponding to nut 11, is fixed on the great power LED bottom surface of heat pipe 2 exposed sections and heat sink 4 by screw 9 simultaneously.The heat that great power LED 1 produces can be directly passed to heat sink 4 and heat pipe 2, and in heat sink 4 heat radiations, the radiating fin 3 that fast heat transferred is fixed on heat pipe 2 surfaces by heat pipe 2 dispels the heat, and reaches the order ground of dual heat radiation.
Present embodiment is by being fixed on great power LED 1 heat sink 4 and the surface of heat pipe 2, and great power LED 1 is directly contacted with heat sink 4, heat pipe 2.Heat sink 4 except that being used for fixing heat pipe 2, can also play dustproof, waterproof effect, makes degree of protection can reach more than the IP65; Be directed to the characteristics that great power LED 1 thermal source is concentrated, heat pipe 2 can rapidly and efficiently be derived heat, dispels the heat by radiating fin 3.The data contrast is found by experiment, under the situation of identical area of dissipation, and the high-power LED light source of 72W, when heating tube 2 did not use heat sink 4 to dispel the heat separately, great power LED 1 base temperature maintenance was at 50 ℃; When adopting heat pipe 2 and heat sink 4 to combine, the temperature of great power LED 1 base obviously reduces, and temperature maintenance is being 43 degree, and simultaneously, the weight of module also alleviates greatly.
By lampshade 6, cover plate 7 and heat sink 4, the inside heat sink 4 forms the cavity of a sealing, and great power LED 1 and reflector 5 just are fixed therein.This kind design not only makes present embodiment when having excellent heat dispersion performance, and can prevent the intrusion of dust fully, and prevent the water intrusion that billow or hole for water spraying spray rapidly, even in the light fixture encroached water under the condition of certain hour or hydraulic pressure, still can guarantee the light fixture normal operation.
From Fig. 1,3, we as can be seen heat pipe 2 extend outside heat sink 4, radiating fin 3 is fixed in the surface of heat pipe 2.The shape of heat pipe 2 extensions not only can be shaped form, also can be linear pattern.Radiating fin 3 integral body are fixed in the capping 7 by screw 8, behind the heat transferred radiating fin 3 of heat pipe 2 with great power LED 1, dispel the heat.
Fig. 4 is the schematic perspective view of radiating fin 3.In the drawings, radiating fin 3 is a sheet structure, and the surface is provided with 2 heat pipe holes 31, and the corner in heat pipe hole 31 is provided with inclined-plane 33.Wherein, the cross section on inclined-plane 33 is circular-arc, and it is all linked with one another that each radiating fin can be formed, and tightly is fixed on the surface of heat pipe.Simultaneously, on radiating fin 3, be manufactured with screw hole 32, radiating fin 3 be fixed in the capping 7 by screw 8.Heat pipe hole 31 and screw hole 32 can increase and decrease according to the quantity of heat pipe 2 and screw 8.The radiating fin 3 main metal or alloy materials such as copper, aluminium that adopt are by the mechanical stamping moulding.
Fig. 5 is another preferred embodiment of the present invention, is the profile of embodiment middle position shown in the figure.In the drawings, heat pipe 2 is fixed in heat sink 4 the groove 41, by extruding and/or polishing, make the mounting plane of heat pipe 2 and heat sink 4 remain on same plane, great power LED 1 is fixed on heat sink 4 installation surface, closely contacts with the exposed section, heat sink 4 of heat pipe 2 simultaneously, to improve radiating efficiency.Surface heat sink 4 is manufactured with screw hole, and great power LED 1 directly is fixed on heat sink 4 installation surface by screw.
The back side heat sink 4 and side are respectively arranged with fin 43, to enlarge heat sink 4 area of dissipation.The surface of fin 43 is rough non-shiny surface, and the area with further expansion heat radiation improves radiating effect.Wherein, fin 43 is laterally or vertically to distribute, and considers the problem of processing technology, generally adopts vertically overleaf to distribute, and adopts cross direction profiles in the side, so that machine-shaping.Heat sink 4 adopt metal or alloy such as copper, aluminium, by the extrusion process one-shot forming.
Above-described embodiment is the more preferably specific embodiment of the present invention, and common variation that those skilled in the art carries out in the technical scheme scope and replacement all should be included in protection scope of the present invention.
Claims (6)
1, a kind of LED lamp radiating module includes great power LED, heat pipe, radiating fin, heat sink, it is characterized in that described heat pipe is fixed in the heat sink groove, and the surface of heat pipe exposed section and heat sink surface are in same plane; The great power LED bottom is fixed on heat pipe exposed section and heat sink surface simultaneously.
2,, it is characterized in that the described heat sink flight that is provided with the cross section for " protruding " font according to claims 1 described a kind of LED lamp radiating module.
3, according to claims 1 or 2 described a kind of LED lamp radiating modules, it is characterized in that described heat sink surface is manufactured with fin.
4, according to claims 1 described a kind of LED lamp radiating module, it is characterized in that described heat pipe surface is fixed with radiating fin.
5, according to claims 4 described a kind of LED lamp radiating modules, it is characterized in that described radiating fin is provided with the heat pipe hole, the corner in the heat pipe hole is provided with the inclined-plane.
6, according to claims 5 described a kind of LED lamp radiating modules, the cross section that it is characterized in that described radiating fin inclined-plane is a circular arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810107211XA CN101363604A (en) | 2008-09-18 | 2008-09-18 | Radiating module for LED lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810107211XA CN101363604A (en) | 2008-09-18 | 2008-09-18 | Radiating module for LED lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101363604A true CN101363604A (en) | 2009-02-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200810107211XA Pending CN101363604A (en) | 2008-09-18 | 2008-09-18 | Radiating module for LED lamp |
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| CN (1) | CN101363604A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922635A (en) * | 2010-08-17 | 2010-12-22 | 安徽莱德光电技术有限公司 | High-power LED lamp adopting heat pipe for heat dissipation |
| CN101922695A (en) * | 2010-08-17 | 2010-12-22 | 安徽莱德光电技术有限公司 | Heat pipe radiator and high-power LED lamp using same as heat dissipation device |
| CN102135262A (en) * | 2011-04-21 | 2011-07-27 | 昆明九田科技有限公司 | Shade-body external heat conduction and dissipation type full-power LED (Light Emitting Diode) lamp |
| CN102143669A (en) * | 2009-12-25 | 2011-08-03 | 阳江市新力工业有限公司 | Flat heat-pipe type LED (light-emitting diode) power radiating device |
| CN102235587A (en) * | 2010-04-21 | 2011-11-09 | 包建敏 | Ultra-high-power LED (light emitting diode) light source illumination lamp |
| CN102313264A (en) * | 2010-07-04 | 2012-01-11 | 宜兴市宏力灯杆灯具有限公司 | Large-power LED (Light-Emitting Diode) heat-radiating module |
| CN102401506A (en) * | 2011-07-26 | 2012-04-04 | 中国科学院长春光学精密机械与物理研究所 | Heat pipe and TEC (Thermoelectric Cooler) combined heat dissipation device |
| CN110043879A (en) * | 2019-04-04 | 2019-07-23 | 惠州雷士光电科技有限公司 | A kind of lamps and lanterns and lamp cooling structure |
-
2008
- 2008-09-18 CN CNA200810107211XA patent/CN101363604A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102143669A (en) * | 2009-12-25 | 2011-08-03 | 阳江市新力工业有限公司 | Flat heat-pipe type LED (light-emitting diode) power radiating device |
| CN102235587A (en) * | 2010-04-21 | 2011-11-09 | 包建敏 | Ultra-high-power LED (light emitting diode) light source illumination lamp |
| CN102313264A (en) * | 2010-07-04 | 2012-01-11 | 宜兴市宏力灯杆灯具有限公司 | Large-power LED (Light-Emitting Diode) heat-radiating module |
| CN101922635A (en) * | 2010-08-17 | 2010-12-22 | 安徽莱德光电技术有限公司 | High-power LED lamp adopting heat pipe for heat dissipation |
| CN101922695A (en) * | 2010-08-17 | 2010-12-22 | 安徽莱德光电技术有限公司 | Heat pipe radiator and high-power LED lamp using same as heat dissipation device |
| CN102135262A (en) * | 2011-04-21 | 2011-07-27 | 昆明九田科技有限公司 | Shade-body external heat conduction and dissipation type full-power LED (Light Emitting Diode) lamp |
| CN102135262B (en) * | 2011-04-21 | 2013-04-10 | 昆明九田科技有限公司 | Shade-body external heat conduction and dissipation type full-power LED (Light Emitting Diode) lamp |
| CN102401506A (en) * | 2011-07-26 | 2012-04-04 | 中国科学院长春光学精密机械与物理研究所 | Heat pipe and TEC (Thermoelectric Cooler) combined heat dissipation device |
| CN110043879A (en) * | 2019-04-04 | 2019-07-23 | 惠州雷士光电科技有限公司 | A kind of lamps and lanterns and lamp cooling structure |
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Application publication date: 20090211 |