Dab tsi yogCOB LED? Dab tsi yog nws qhov zoo dua li cov pob khoom LED?
COB LED, luv rau Chip-ntawm-Board Light-Emitting Diode,yog ib qho khoom siv hluav taws xob zoo tshaj plaws uas sib txawv ntawm cov khoom ntim LED. Hauv kev teeb tsa COB LED, ntau lub chips LED tau ncaj qha mus rau hauv ib qho substrate, xws li ceramic lossis hlau core printed circuit board (MCPCB), tsis muaj ib tus neeg ntim rau txhua lub nti. Cov chips no txuas nrog ua ke thiab npog nrog phosphor txheej los tsim lub teeb dawb, tsim ib qho, compact teeb qhov chaw.
Piv rau cov pob khoom siv LED, COB LEDs muaj ntau qhov zoo sib xws. Ib qho ntawm cov txiaj ntsig tseem ceeb tshaj plaws yog lawv cov teeb pom kev zoo tshaj plaws thiab qhov sib xws. Ib txwm LEDs feem ntau muaj xws li ib tug neeg ntim diodes uas yog mounted nyias, uas yuav ua rau lub teeb tsis sib xws, hotspots, los yog pom ib tug neeg lub teeb qhov chaw, tshwj xeeb tshaj yog nyob rau hauv lub teeb pom kev zoo fixtures. Nyob rau hauv sib piv, COB LEDs integrates ntau chips rau hauv ib lub module, tsim ib tug loj emitting nto. Qhov kev tsim no ua kom lub teeb pom kev zoo sib xws, tshem tawm qhov ci ntsa iab thiab hotspots, thiab muab lub teeb pom kev zoo dua, zoo dua qub - zoo tagnrho rau cov ntawv thov xws li teeb pom kev zoo hauv tsev, cov khoom muag muag, thiab teeb pom kev zoo nkauj.
Lwm qhov txiaj ntsig tseem ceeb yog txhim kho thermal tswj.Thaum tshav kub kub yog ib qho kev txhawj xeeb loj rau LED kev ua haujlwm thiab kev ua neej ntev, vim tias cov cua sov ntau dhau tuaj yeem txo qhov ua tau zoo thiab ua rau lub neej ua haujlwm luv luv. Cov pob khoom siv hauv LED feem ntau muaj peev xwm txo cov cua sov vim tias txhua tus neeg diode raug kaw hauv nws lub pob, uas tuaj yeem cuam tshuam cov cua sov. COB LEDs, txawm li cas los xij, muaj cov qauv yooj yim dua nrog cov chips ncaj qha txuas rau lub thermally conductive substrate. Qhov no tso cai rau kom muaj txiaj ntsig zoo ntawm cov khoom siv hluav taws xob los ntawm cov chips mus rau lub substrate thiab tom qab ntawd mus rau lub dab dej kub, tiv thaiv kev kub ntxhov. Kev txhim kho thermal tswj tsis tau tsuas yog ncua lub neej ntawm COB LEDs tab sis kuj tswj lawv cov teeb pom kev zoo thiab xim ruaj khov nyob rau lub sijhawm.
COB LEDs kuj tseem muaj kev tsim qauv yooj yim dua. Lawv qhov loj me thiab kev sib xyaw ua ke ua rau lawv yooj yim rau kev koom ua ke rau hauv ntau yam teeb pom kev zoo, tshwj xeeb tshaj yog cov uas muaj qhov chaw txwv. Ib txwm LEDs, nrog rau lawv cov pob khoom thiab cov khoom ntxiv xws li lo ntsiab muag thiab cov tuav, tuaj yeem tsim teeb meem tsim kho thiab ua kom tag nrho qhov loj me. COB LEDs tshem tawm qhov xav tau rau ntau tus neeg cov khoom, ua kom yooj yim rau kev tsim khoom thiab tso cai rau sleeker, ntau compact fixture designs. Qhov kev hloov pauv no tshwj xeeb tshaj yog muaj txiaj ntsig hauv kev siv xws li teeb pom kev zoo, taug qab teeb pom kev zoo, thiab cov khoom siv teeb pom kev zoo.
Nyob rau hauv cov nqe lus ntawm lub zog efficiency, COB LEDs feem ntau outperform ib txwm LEDs.Qhov ze ze ntawm cov chips hauv COB tsim kom txo tau lub zog poob thiab tso cai rau kev ua tau zoo dua luminous (lumens ib watt). Qhov no txhais tau hais tias COB LEDs tuaj yeem tsim lub teeb ntau dua siv lub zog tsawg, ua rau txo qis kev siv hluav taws xob thiab txo cov nqi khiav lag luam. Tsis tas li ntawd, cov teeb pom kev zoo sib xws ntawm COB LEDs txo qhov kev xav tau ntxiv rau optics lossis reflectors, uas tuaj yeem nqus lub teeb thiab txo qis kev ua haujlwm ntawm tag nrho cov teeb tsa LED.
Thaum kawg, COB LEDs muab cov xim zoo sib xws. Cov txheej phosphor siv rau tag nrho cov array ntawm chips hauv COB LED kom ntseeg tau tias xim kub thiab xim rendering Performance index (CRI) nyob twj ywm nyob rau hauv tag nrho lub teeb qhov chaw. Hauv cov pob khoom LED ib txwm muaj, kev hloov pauv me ntsis hauv ib tus neeg diodes lossis phosphor daim ntawv thov tuaj yeem ua rau cov xim tsis sib xws, uas yog teeb meem hauv cov ntawv thov qhov tseeb xim yog qhov tseem ceeb, xws li hauv kev yees duab, kos duab kos duab, lossis teeb pom kev kho mob.
Hauv cov ntsiab lus, COB LED thev naus laus zis sawv cev rau kev nce qib tseem ceeb ntawm kev ntim khoom ntawm LED. Nws muaj peev xwm xa cov teeb pom kev zoo, kev tswj xyuas thermal zoo, tsim kev yooj yim, kev siv hluav taws xob, thiab xim sib xws ua rau nws nyiam xaiv rau ntau hom teeb pom kev zoo, tsav nws qhov chaw loj hlob hauv kev lag luam teeb pom kev zoo.
