Nrog rau lub ntiaj teb no tsis muaj zog txaus thiab ib puag ncig muaj kuab paug, LED zaub muaj ib tug dav daim ntawv thov chaw vim lawv lub zog-txuag thiab ib puag ncig tus phooj ywg nta. Daim ntawv thov ntawm LED teeb-emitting khoom nyob rau hauv lub teeb pom kev zoo teb yog attracting cov xim ntawm lub ntiaj teb no. Feem ntau hais lus, kev ruaj ntseg thiab qhov zoo ntawm LED teeb yog qhov tseem ceeb rau cov cua kub dissipation ntawm lub teeb lub cev. Tam sim no, lub tshav kub dissipation ntawm high-brightness LED teeb nyob rau hauv kev ua lag luam feem ntau siv natural heat dissipation, thiab cov nyhuv tsis zoo tagnrho. LED teeb ua los ntawm LED qhov chaw teeb pom kev zoo yog tsim los ntawm LEDs, cov qauv hluav taws xob cua sov, cov tsav tsheb, thiab cov lo ntsiab muag. Yog li ntawd, cua kub dissipation kuj yog ib feem tseem ceeb. Yog hais tias LED tsis dissipate cua sov zoo, nws lifespan kuj yuav cuam tshuam.
High-brightness LED zaub
Kev tswj cua sov yog qhov teeb meem tseem ceeb hauv kev siv lub teeb ci siab LED
Vim tias p-hom doping ntawm pawg III nitrides raug txwv los ntawm kev solubility ntawm Mg txais thiab siab dua pib lub zog ntawm qhov, cua sov tshwj xeeb yog yooj yim los tsim hauv thaj tsam p-hom, thiab cov cua sov no yuav tsum dhau los ntawm tag nrho cov qauv mus rau yuav tsum tau dissipated ntawm lub dab dej kub; Lub tshav kub dissipation txoj kev ntawm LED li yog tsuas yog thermal conduction thiab thermal convection; Qhov tsis tshua muaj thermal conductivity ntawm Sapphire substrate cov khoom ua rau lub thermal kuj ntawm cov cuab yeej nce, uas ua rau muaj kev cuam tshuam rau nws tus kheej, uas muaj kev cuam tshuam loj heev rau kev ua haujlwm thiab kev ntseeg siab ntawm cov cuab yeej.
Cov nyhuv ntawm tshav kub ntawm high-brightness LEDs
Thaum tshav kub kub yog concentrated nyob rau hauv ib tug me me nti, thiab lub nti kub nce, ua rau non-uniform faib ntawm thermal stress, nti luminous efficiency thiab phosphor lasing efficiency poob; Thaum qhov kub thiab txias tshaj ib qho nqi, tus ntaus ntawv tsis ua hauj lwm nce exponentially. Kev txheeb xyuas qhia tau tias txhua lub sij hawm qhov ntsuas kub nce los ntawm 2 ℃, qhov kev ntseeg tau poob los ntawm 10 feem pua. Thaum ntau lub LEDs tau ntom ntom tsim los tsim lub teeb pom kev zoo, qhov teeb meem ntawm cov cua sov dissipation yuav hnyav dua. Kev daws teeb meem ntawm kev tswj cov cua sov tau dhau los ua qhov yuav tsum tau ua ua ntej rau kev siv lub teeb ci LED.
High-brightness LED zaub
Kev sib raug zoo ntawm chip loj thiab cua sov dissipation
Txoj hauv kev ncaj ncees tshaj plaws los txhim kho qhov ci ntawm lub zog LED zaub yog txhawm rau ua kom lub zog nkag, thiab txhawm rau tiv thaiv qhov saturation ntawm cov txheej txheem nquag, qhov loj ntawm pn hlws ris yuav tsum tau nce raws li; nce lub zog input yuav inevitably nce qhov sib txuas kub thiab yog li lub quantum efficiency txo. Qhov kev nce ntawm lub zog ntawm ib lub raj yog nyob ntawm lub peev xwm ntawm cov cuab yeej kom tshem tawm cov cua sov los ntawm pn hlws ris, thaum tswj cov khoom siv chips uas twb muaj lawm, cov qauv, txheej txheem ntim khoom, qhov ceev tam sim no ntawm cov nti thiab qhov sib npaug ntawm cov cua kub dissipation, qhov loj ntawm cov nti thiab qhov chaw sib txuas tau nce ntxiv Cov kub yuav nce ntxiv.
