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20102211ZHAOMINGGONGCHENGXUEBAOFeb.2010Vol121No11(,230029):LED,LED,,LEDLED,LED,LED,:;LED;ResearchonSchemesAboutHeatDissipationofHigh2powerLEDLampinRoadLightingYangGuang(TheNationalSynchrotronRadiationLaboratory,UniversityofScienceandTechnologyofChina,AnHuiHeFei230029)AbstractPowerLEDissuperiortoconventionalhigh2pressuresodiumlampinluminousefficacy,servicelife,directionallightoutputetc,thereforetheywillbeusedgraduallyintheroadlighting.IndeterminingtheperformanceofhighpowerLEDsandinhighpowerLEDlampdesignkeytechniques,thethermalmanagementisveryimportant.ThermaldesignofLEDlampwillaffectthepracticalapplicationofsuccessdirectly.ThisarticlemainlyfromthethermalcharacteristicsofhighpowerLED,throughtheanalysisofhighpowerLEDheatdissipationprocess,commonandsecondarycoolingschemetoexploretheschemesonthermaldesignofhighpowerLEDlamp,thecoolingscheme,differentcoolingschemeofadaptiveandgivessomeSuggestions.Keywords:heatdissipationhigh2powerLEDlampinroadlighting,somesuggestions1,,70%,,,,,LED(80lm/W)(50000h)(7580),211:LED41,,,LED,,,LED2LEDLEDLED,,1520%,16125mm2,,,8085%,,,,[1],LED,(1)LEDLED8085%,LED(),LEDLED:LED,1LED[2],LED,,,LEDLED:LEDLED2aLED[3],,1LED2LEDLED2bLED,,,,LED,4220102(2)LEDLED,,,,LED:3LEDLED3a[3]:,LED,;LED,LED,,,LED3b[2]LED,LEDPD,Rj-c,,RTP:LED,Rc2b,,Rb2s,Rs2a(:TjLED,Tc,Ts,Ta)LED,LED:a.LED,,[4,6]:PCBLED,,PCB,,,,b.[5]LED,,,c.LED[6]:150,,;200,;,,,d.,,[2,5]:(),,211:LED43LED;,,LEDe.LED,,,:[7]PCB,,PCB,LEDLED,,LEDLEDLED,a.,,,:Q=KAT/L,Q,;K;,;A();T;L,,,,,,()(1):Q=HAT,Q,;H;A;T,,,,,,,,,,,LED,,[8]1(a)(:W/mK)4294013172378034181070226105020960632016061155(b)[:/()]1000217113935631b.,,6mm40W[5],1031054a,,,,LED:LED;,,;,LEDLED[9],[10],,,LED,44201024[11]c.[5],,,,,d.[12],(5),,,5LED:LED,LED,,a.,,,,[13]:,,10,,,b.6[14](6)53815W,01645/W,,;[15],,,,,c.211:LED457LED,[1]:;:,LED7:npV,p2n,,,,LED;,,LED8LED3LEDLED(8),LED:1;2;3;4;5LED,,:LED,,:(1)LED,::LED,(90W),,,IP,,,,,:;::LED(90150W),,,(2)IP,,LED,,:;:2()()()()PN(K)1691359124615291639171021390125213291972142751366145413291545181101199175316291081114620102(2)LED,1WLEDLED(:150200W),,,LED,,;LED,,150200WLED,LEDWW,,LED,,200WLED,,,(3)LED,,,LED[1],,,LED[16],LED(9),,LED,,,,LED;,,,,LED,,LED1-LED;2-;3-;4-;5-;6-;7-;8-;9-;10-;11-9LED,LED,4LED,LED,,LED211:LED47LED,LED,LED,,,LED[1].LED.,2008,11,P7887[2].LED.,2009,2,P610[3].LED.,2008,12,P17161719[4].LED.,2006,12,P653658[5].LED.,2008,12,P2530,P44[6].LED.,2007,7,p13[7].LED.,2009,2,p5861[8].[M].,2006,8[9],.,2006,5,p6970[10]..,2008,10,p627631[11].LED.,2009,3,p7375[12].LED[13].CPU.,2008,10,p7376[14]..,2009,2,p8083[15].LED.,2009,2,P8390[16].LED.,2009,1:p692010119,()2010,,,,,,,,,140,,,,2010,,(),LED,;,,,,