纳米陶瓷辐射散热英文版.ppt

ActiveNanoFarInfraredRadiantHeatDissipationApplytoLEDLighting,Updated:October,2010,Outline,NewLightingSolutionin21CenturyLEDLuminousTheoryLEDOpticalPropertiesLEDRadiantHeatDissipationTechnologyStructureAnalysisQradiationtakesplaceeveninandthroughaperfectvacuum。Sincetheamountofemittedradiationincreaseswithincreasingtemperature,anettransferofenergyfromhighertemperaturestolowertemperaturesresults.,HeatRadiation,Radiationisthemajormethodtotransmittheheatforlongdistancethermaltransmission.Forinstance,theheatfromSuntravelthroughthevacuumofthespacebeforewarmingtheearth.(about1500millionKm)Radiationistheonlyformofheattransferthatcanoccurintheabsenceofanyformofmedium,AcknowledgedbyPNNLandOregonStateUniversity.Thecapillarypumpingactionforthethermaldissipationishighlyimproved.SUPAnanometerfilmcoatingcomewithhexagonalpyramidcrystal,whichprovideslargerandconsistentsurfacerange,andhigherefficientheatdissipationthanthepublishedresearch.SUPAspatensapplicationareearlierthanthepublishedresearch.,Largerandconsistentsurfacerangewithoctagonalpyramidw/trianglesurfacescrystal,Thermalfilmenlargementunder300Ktimesofmicroscope,Theresearchers”thistechnologywillimprovetotheadvancedlasercomponents,radarorelectroniccomponentsonheatdissipation,possibleapplicationsarealsoappliedtohighperformancecomputer,military,aerospace,electronicvehicleandgreenenergysystem”(from:HASTJune.17,2010),HeatDissipationImprovementbyNanometerCoating,NanometerFarInfraredCeramicPlateHeatingModule,Positiveside=250CTemp.Distribution=Even(Directional),Negativeside=50CTemp.Distribution=Even,ThisprovestheheatfromLEDsubstratesidetoberemovedveryefficientandcooldownveryfast.,PatentsandRewards,1997iENA-UNEMEDAILLEDOR(德國紐倫堡國際發明展金牌獎)1996InventionsGenevaGold(瑞士日內瓦國際發明展鍍金牌獎)1996NationalInventionGoldenBrain(全國發明展金頭腦獎),RadiationHeatDissipationTechnologyforLED,ThreeMajorHeatTransmissions:ConvectionConductionRadiation,ActiveNanoThermalradiationfilm,Radiantheat,Inputpower,RadiantheattransmissionprovidesthehighestefficiencyEx.HeatfromSuntransmitstoEarthwithshortperiodthroughradiationmethod.,TechnicalDifferentiationandAdvantagesfromSUPAsPatentonLEDModulePackaging,1.Noneedofleadframe,Reduceheatresistance,increaseluminousangle,&reducecostdramatically.2.Noneedofheatconductionmetal(likealuminumheatsink)behindtheSapphire3.Luminousangelincreasefrom115to1754.HighPowerlightsourceimprovedfromdotlightsourcetoflatsurfacelightsource,PackagingTechnologyComparisontoOthers,TraditionalLEDPackaging(Conductionheatdissipation),ThroughJDZsnanometerfarinfraredradiantheatdissipationsolution,LEDlightingcomeshighperformanceintermsofheatdissipation,longerlifetime,andhigherluminance.Noneedofaluminumheatsink.Reducematerialcostandmanufacturingcost.NomoreheavyweightofLEDproducts.,SUPALEDPackaging(Radiantheatdissipation),OurTemperatureMeasurements,LED,Phosphor,Silicon,ActiveNanoRadiationfilm,Ceramicboard,HeatRadiation,T1,T2,T3,StructureAnalysis,RadiantHeatDissipationApplicationLuminousEfficiencyImprovementTheRevolutiononLEDPackagingProcesses,LuminousEfficiencyImprovement,LowerJunctionTemperatureUndertheRatedCurrentDensity,IncreaseCurrent,IncreaseLuminousIntensity,HeatDissipationIssueImpactstoHighPowerLEDApplications,Whatiftheheatdissipationisnotsolvedproperly?LEDoperationtemperaturerisewith2majorimpacts:(1)Decreaseluminance(LV)(2)DecreaseLEDlifedurationLuminancedecreaseexample:WhileTjis25(typicalambienttemp.),theluminance(LV)is100Tjrisesto75LVreducedto80Tjreachesto125LVreducesto60Tjreachesto175LVonly40leftoverObviously,junctiontemperatureandluminancecomeswithlinearindirectproportionrelationship.Asthetemperatureraises,theLEDluminancewilldecaytremendously.,Tjv.s.LEDlifetime(hrs),LowerTj,LEDTj&LifeDurationRelations,W,(2)DecreaseLEDlifedurationItislinearrelationshipbetweentemperature&luminance.However,toLEDlifespandurationisexponentialrelation.,LEDRadiantHeatDissipationModule&Applications,2dies200lm,3dies300lm,5dies500lm,16dies,26,E27,MR16GU-10,StreetLamp,PlasticcoverwithoutHeatSinkandGuaranteetheLEDLifespanandperformance,PlasticcoverwithoutHeatSinkandGuaranteetheLEDLifespanandperformance,PlasticcoverwithoutHeatSinkandGuaranteetheLEDLifespanandperformance,E6/E8,E8L/E10,P6/P8,Q8/Q10,SUPAActiveNanoRadiantHeatDissipationLEDStreetLight,WhatSUPAoffers?,LEDModuleforAssemblyLEDL