Ib feem tseem ceeb ntawm coj tri-proof teeb raj: Circuit Court board
Lub rooj tsav xwm Circuit Court yog ib qho tseem ceeb ntawm LED tri-proof teeb raj, thiab nws plays lub luag hauj lwm ntawm threading lub koob rau lub tshav kub dissipation ntawm lub teeb raj. Muaj ob hom Circuit Court boards feem ntau siv nyob rau hauv lub teeb, ib tug yog iav fiber board thiab lwm yam yog txhuas substrate. Tom ntej no, peb lub tuam txhab teeb pom kev zoo yuav txheeb xyuas qhov sib txawv ntawm cov iav fiber ntau thiab txhuas substrate rau koj:
1. Cov iav fiber ntau pawg thawj coj saib: Yuav kom tau txais txiaj ntsig zoo hauv nqe, qee cov tuam txhab siv iav brazing board raws li PCB board rau LED teeb. Raws li cov ntaub ntawv sib txawv thiab cov txheej txheem ntau lawm, cov iav brazing phaj tuaj yeem muab faib ua iav fiber ntau pawg thawj coj saib, ob-sided tooj liab ntawv ci iav fiber ntau pawg thawj coj saib, perforated iav tooj liab ntawv ci iav fiber ntau pawg thawj coj saib thiab ib sab tooj liab ntawv ci iav fiber board, thiab lwm yam.
Vim yog cov xwm txheej no, tus nqi ntawm LED teeb yuav raug cuam tshuam ncaj qha. Kuj tseem muaj kev siv nyiaj ntau dua ntawm kev siv cov cua sov dissipation, uas yog ncaj qha mus teem lub Circuit Court ntawm lub iav solder phaj. Cov teeb ci LED ua los ntawm cov laug cam saum toj no yog pheej yig dua li cov txhuas substrates, tab sis cov cua kub dissipation tsis zoo li cov txhuas substrates.
LED tri-pov thawj teeb
2. Aluminium substrate: Nws tuaj yeem muab faib ua peb txheej raws li kev tsim qauv. Sab saum toj yog txheej txheej Circuit Court, nruab nrab yog thermal conductivity thiab insulating txheej, thiab hauv qab yog aluminium puag txheej. Feem ntau ntawm LED teeb nyob rau hauv kev ua lag luam tam sim no siv lub rooj tsav xwm no.
A. Cov txheej txheem Circuit Court feem ntau siv cov ntawv ci tooj liab ua cov khoom siv hluav taws xob. Tooj liab muaj cov hluav taws xob zoo conductivity thiab tus nqi kuj yog siab heev. Yuav kom txuag tau tus nqi, qee cov tuam txhab tsim cov ntawv ci tooj liab thinner, yog li cov conductivity tseem yuav cuam tshuam.
B. Tus nqi ntawm thermal conductivity thiab insulating txheej yuav txawv heev vim yog cov khoom sib txawv. Yog tias cov thermal conductivity thiab rwb thaiv tsev zoo heev, cov khoom siv tshwj xeeb ceramics tuaj yeem siv tau, tab sis cov khoom siv no kim heev, thiab ntau lub tuam txhab tsim khoom tsis tsim nyog. Yog li ntawd, lawv tab tom nrhiav lwm cov khoom siv kom zoo los txo cov nqi, xws li epoxy resin thiab iav ntaub, uas feem ntau yog siv.
C. Aluminium puag txheej tuaj yeem ua los ntawm tooj liab phaj thiab txhuas phaj. Lub tshav kub dissipation nyhuv ntawm tooj liab phaj yog zoo dua, thiab tus nqi yuav kuj siab. Xav txog tus nqi zoo, aluminium substrate feem ntau yog ua los ntawm txhuas phaj, uas muaj thermal conductivity zoo thiab yuav tsis yooj yim khoov.
Txhawm rau ua kom tiav, qhov teeb meem ntsib los ntawm LED tri-proof teeb yog cua sov dissipation. Lub teeb LED xav tau kom muaj cua sov txaus los xyuas kom meej qhov ua tau zoo. Lub rooj tsav xwm hauv Circuit Court nrog zoo thermal conductivity tuaj yeem ua rau lub neej ua haujlwm ntev ntawm LED teeb. Yog li ntawd, ib tug zoo LED raj yuav tsum tau nruab nrog ib tug txhuas substrate nrog ib tug kuj high kub dissipation coefficient, uas ua rau kub sai sai thiab dissipates tshav kub sai. Muag nqe kom nkag siab txog qhov twg Circuit Board xaiv.
