Technical Principple Ntawm LED Txoj Kev Teeb
Jun 20, 2023
Cov qauv LED txoj kev teeb tsim feem ntau tsom rau cov naj npawb ntawm lumens ntawm LED, thiab them tsawg dua rau cov cua kub dissipation. Qhov tseeb, tus naj npawb ntawm lumens ntawm LEDs yog nce sai heev. Nyob rau hauv 2009, tus naj npawb ntawm lumens ib watt ntawm loj-tsim LEDs tau mus txog 100 lumens, thiab qhov no tus nqi yog loj hlob sai heev. Cov txheej txheem theoretical sib raug zoo ntawm kev hloov hluav taws xob tau ua tiav, thiab cov txheej txheem hloov hluav taws xob uas peb tuaj yeem siv tau yog qhov tseeb: conduction, convection, hluav taws xob thiab theem hloov hluav taws xob. Yog li ntawd, nyob rau hauv qhov teeb meem ntawm tshav kub hloov los yog kub dissipation, cov kev ntsuas uas peb yuav siv tau yog pom thiab txwv.
LED txoj kev teeb hluav taws xob cua sov dissipation technology, feem ntau yog siv rau thermal conductive phaj txoj kev, yog 5 hli tuab tooj liab phaj, qhov tseeb, nws yog ib tug vapor chamber, lub tshav kub qhov chaw yog tusyees kub; Kuj tseem muaj cov heatsinks rau dissipate cua sov, tab sis qhov hnyav dhau lawm. Qhov hnyav yog qhov tseem ceeb heev nyob rau hauv txoj kev teeb pom kev zoo, vim hais tias txoj kev teeb yog 9 meters siab, yog tias hnyav dhau lawm, kev txaus ntshai yuav nce ntxiv, tshwj xeeb tshaj yog nyob rau hauv lub ntsej muag ntawm typhoons thiab av qeeg, uas yuav ua rau muaj xwm txheej. Cov tuam txhab tsim khoom siv hauv ntiaj teb tau txais lub ntiaj teb thawj koob cua sov dissipation thev naus laus zis, koob radiator tshav kub dissipation efficiency tshaj li cov ntawv xov xwm radiator tau zoo heev, tuaj yeem ua rau LED hlws ris kub qis dua li cov hluav taws xob zoo tib yam ntau dua 15 degree, thiab kev ua haujlwm tsis zoo yog zoo dua li cov txhuas profile. radiator, thaum nyob rau hauv qhov hnyav thiab ntim kuj tau txhim kho. Tsis tas li ntawd, graphite heat sinks tsim rau high-power LED teeb kuj muaj thermal conductivity zoo thiab kub dissipation kev ua tau zoo.
Lub ntsiab cua sov dissipation txoj kev yog: ntuj convection heat dissipation, yuam cua sov dissipation los ntawm kev txhim kho kiv cua, cov kav dej kub thiab cov kav hluav taws xob hluav taws xob rau cov cua sov dissipation, thiab lwm yam. Cov txheej txheem ntawm kev txhim kho kiv cua yuam cua sov dissipation yog complex, kev ntseeg siab yog tsawg, thiab cov cua sov. yeeb nkab thiab voj cua sov yeeb nkab cua sov dissipation txoj kev yog kim. Txoj kev teeb muaj qhov zoo ntawm kev siv sab nraum zoov hmo ntuj, tshav kub dissipation nto ntawm sab thiab tsis tshua muaj lub cev loj, uas yog qhov zoo rau ntuj convection tshav kub dissipation ntawm huab cua, yog li LED txoj kev teeb pom zoo kom xaiv natural convection tshav kub dissipation ntau npaum li cas. ua tau.
Cov teeb meem nyob rau hauv kev tsim hluav taws kub dissipation ntawm LED txoj kev teeb yog: tshav kub dissipation fin cheeb tsam yog teem arbitrarily, kev npaj ntawm tshav kub dissipation fins yog tsis tsim nyog, kev npaj ntawm lub tshav kub dissipation fin ntawm cov teeb tsis xav txog kev siv lub teeb, cuam tshuam cov nyhuv. ntawm cov fins, hais txog qhov sib txuas ntawm cov hluav taws kub, tsis quav ntsej qhov sib txuas ntawm cov hluav taws kub dissipation, txawm hais tias ntau lub tuam txhab xav txog ntau yam kev ntsuas: cov kav dej kub, cov kav hluav taws xob hluav taws xob, cov roj thermal, thiab lwm yam. Sab nraud thaj tsam ntawm lub teeb kom dissipate, tsis quav ntsej qhov sib npaug ntawm cov cua sov hloov, Yog tias qhov kub thiab txias ntawm cov fins tsis sib xws, qee qhov ntawm cov fins yuav tsis ua haujlwm lossis muaj kev txwv.
Thaum tshav kub kub dissipation high-power LED txoj kev teeb. Nws lub hom phiaj yog los daws qhov teeb meem ntawm high-power LED teeb hluav taws xob kub dissipation, tawm tswv yim cua convection tshav kub dissipation high-power LED txoj kev teeb, uas muaj xws li ib tug teeb lub taub hau los ua ke, lub teeb kub dab dej tivthaiv thiab ib lub teeb tail sib dhos, lub teeb kub. Lub dab dej sib dhos yog arc chord cylindrical plhaub, ob kawg yog qhib, arc lub tog raj kheej nto yog ob sab rau lub façade, lub façade tseem qhib nrog ib qho array los ntawm lub qhov, nyob rau hauv lub arc chord cylindrical plhaub kab noj hniav yog muab nrog 4 ~ 10 axial Kev npaj thiab arc lub tog raj kheej nto tsau tav tav thermal conductive phaj, Ob lub façade ntawm ob sab ntawm lub rib thermal conductive phaj thiab arc chord cylindrical plhaub kuj qhib nrog array los ntawm qhov, thiab ob lub facades ntawm ob sab ntawm cov tav thermal conductive phaj thiab arc chord cylindrical plhaub daim ntawv 5 ~ 11 cov cua kub dissipation raws rau cov cua kub ntws hauv lub dab dej kub sib dhos ntawm lub teeb. Qhov zoo ntawm cov qauv siv hluav taws xob yog tias muaj ntau lub tshav kub dissipation raws rau cov cua kub ntws hauv lub tshav kub dissipation chamber, thiab cov rib tshav kub conductive phaj kuj ua raws li lub tshav kub dissipation nto, lub tshav kub pauv saum npoo yog nce, thiab lub tshav kub emission efficiency. yog siab.
