Txhawm rau txhim kho lawv cov txiaj ntsig, kev siv ntau yam, thiab kev lag luam hluav taws xob, LED teeb yeej ib txwm raug txhim kho. LED teeb yog nrov heev vim lawv yuav kav ntev txog 25 lub sij hawm ntev dua li cov teeb pom kev zoo thaum siv hluav taws xob tsawg.
Ob hom teeb pom kev zoo niaj hnub no yog LED teeb, uas tuaj hauv COB thiab SMD ntau yam. Ob leeg ntawm cov khoom no muaj qhov ua tau zoo tshaj plaws rau hnub tim, muab lub teeb zoo, thiab muaj lub neej ntev.
Hauv qhov piv txwv no, peb yuav tham txog COB LEDs, uas yog qhov tshiab tshaj plaws hauv LED kev ua lag luam thiab muab cov txiaj ntsig ntau dua li cov kev xaiv dhau los.
Piav qhia txog COB LED.
Lub "Chip on Board" (COB) thev naus laus zis hauv thaj tsam ntawm LEDs yog ib qho kev tsim kho tshiab tshaj plaws. Tej zaum peb yuav saib nws zoo li tshiab thiab inventive thaum piv rau lwm cov qauv.
Kev sib sau ua ke ntawm cov chips LED sib txuas nrog lub hauv paus silicon carbide ua rau COB teeb. Raws li qhov tshwm sim, LED nti loj heev nrog lub teeb pom kev zoo tshwj xeeb yog tsim, uas yog qhov zoo tagnrho rau ntau txoj haujlwm nrog rau cov kws yees duab thiab cov neeg ua yeeb yaj kiab.
COB chips feem ntau suav nrog cuaj lossis ntau dua diodes. Txawm hais tias muaj pes tsawg diodes tam sim no, COB chips tsuas muaj ob qhov kev sib txuas thiab ib lub voj voog. Qhov no yuav ua rau muaj kev kaj siab ntxiv rau ntawm lub nti loj, txog li 250 lumens (ntawm 20 mA). Lub hauv paus circuitry ntawm lub nti yog dab tsi muab COB LED teeb lawv lub vaj huam sib luag zoo li.
Contrary to SMD LED teeb, COB LED teeb tsis tuaj yeem siv los tsim cov teeb xim lossis teeb. Qhov tseeb tias tsuas muaj ob qhov kev sib txuas thiab ib qho nyiaj hauv Circuit Court rau qhov no. Lub illusion hloov xim yuav tsum tau muaj ntau yam kev hloov kho raws li yuav tsum tau realised. Yog li ntawd, COB LED teeb muaj txiaj ntsig zoo hauv cov xwm txheej uas xav tau ib qho xim xwb.
Ntev npaum li cas yog COB LEDs?
COB LEDs siv li cas thiab lawv cov cua sov ntau npaum li cas los cuam tshuam rau lawv nyob ntev npaum li cas. Qhov kev ntsuas lub neej ntawm COB LED yog 50, 000 teev. Qhov ntawd yog qhov xav tias ib tus neeg siv lawv li 12 teev txhua hnub.
Vim li cas COB LEDs tseem ceeb heev rau roj teeb lub zog?
Thaum tsim lub roj teeb-powered teeb pom kev zoo, yeej ib txwm muaj kev lag luam tawm ntawm qhov muaj txiaj ntsig zoo ntawm lumen tso zis (brightness) thiab cov roj teeb lub sijhawm. Lub sijhawm khiav yuav raug txo nrog ntau lub teeb pom kev zoo yog tias koj siv lub roj teeb ntawm tib qhov loj. Nrog rau kev txhim kho ntawm COB LED thev naus laus zis, uas tam sim no tsis tshua muaj teeb meem.
COB LEDs tuaj yeem tsim tau qhov zoo tshaj plaws, ultra-ci teeb nrog hluav taws xob tsawg. Yog li ntawd, cov roj teeb me me thiab lub teeb lithium-ion tuaj yeem siv los ua lub zog COB LED-raws li lub teeb pom kev zoo rau lub sijhawm ntev.
Dab tsi yog qhov txawv ntawm COB LEDs los ntawm LEDs li niaj zaus?
Txhawm rau pib, nws yog ib qho tsim nyog yuav tsum muaj lub hauv paus tuav ntawm Surface-Mounted Device (SMD) LEDs. Lawv yog unquestionably cov LEDs uas tau siv feem ntau tam sim no. Vim nws muaj ntau yam, txawm tias nyob rau hauv lub teeb ceeb toom ntawm lub xov tooj smartphone, LED nti yog nrees fused rau lub rooj tsavxwm luam tawm thiab tau ua haujlwm dav. Ib qho tshwj xeeb tshaj plaws ntawm SMD LED chips yog tus naj npawb ntawm kev sib txuas thiab diodes.
Ntawm SMD LED chips, nws muaj peev xwm muaj ntau tshaj ob qhov kev sib txuas. Txog li peb lub diodes nrog ib tus neeg circuits tuaj yeem pom ntawm ib nti. Txhua lub voj voog yuav muaj anode thiab cathode, uas ua rau 2, 4, lossis 6 kev sib txuas ntawm lub nti.
Inconsistencies ntawm COB thiab SMD LEDs
Ntawm ib qho SMD LED nti, tuaj yeem muaj txog li peb lub diodes, txhua tus muaj nws tus kheej circuit. Txhua qhov hluav taws xob hauv ib lub nti ntawm hom no muaj ib lub cathode thiab ib qho anode, uas ua rau 2, 4, lossis 6 kev sib txuas. COB chips feem ntau muaj cuaj diodes lossis ntau dua. Tsis tas li ntawd, COB chips muaj ob qhov kev sib txuas thiab ib lub voj voog tsis hais txog qhov ntau ntawm diodes. Vim qhov kev tsim hluav taws xob yooj yim no, COB LED teeb muaj lub vaj huam sib luag zoo li, qhov SMD LED teeb yuav tshwm sim los ntawm cov teeb me me.
Ib qho liab, ntsuab, thiab xiav diode tuaj yeem suav nrog ntawm SMD LED nti. Los ntawm kev hloov cov zis theem ntawm peb lub diodes, koj tuaj yeem tsim cov xim. Ntawm COB LED teeb, txawm li cas los xij, tsuas muaj ob qhov kev sib txuas thiab ib lub voj voog. Nws tsis yooj yim sua kom siv lawv los ua cov teeb hloov xim lossis teeb. Ntau qhov kev hloov kho channel yuav tsum tau ua kom tau txais cov nyhuv hloov xim. Yog li ntawd, COB LED teeb ua haujlwm zoo hauv cov ntawv thov uas xav tau ib qho xim tab sis tsis yog ob peb xim.
SMD chips muaj qhov paub zoo ntawm qhov ci ci ntawm 50 txog 100 lumens ib watt. Qhov zoo tshaj plaws kub efficiency thiab lumens ib watt piv ntawm COB paub zoo. COB chips tuaj yeem tso tawm ntau lumens nrog hluav taws xob tsawg yog tias lawv muaj tsawg kawg yog 80 lumens ib watt. Nws tuaj yeem pom nyob rau hauv ntau hom qij thiab cov khoom siv, xws li lub teeb nyem ntawm koj lub xov tooj lossis lub koob yees duab taw tes thiab tua.
Ib qho hluav taws xob sab nraud me me yog xav tau rau SMD LED chips, thaum lub zog sab nraud loj dua yog xav tau rau COB LED chips.
Vim li cas thiaj xaiv COB LEDs?
Raws li txoj cai dav dav, COB LED teeb yog lub teeb pom kev zoo dua. Qhov no yog vim lawv ntiav cov reflectors los tsim kom pom tseeb thiab tswj lub teeb. Tsis tas li ntawd, lawv tsis muaj lub lens frosted uas SMD LED teeb ib txwm muaj.
Higher-end COB LEDs muaj lub ntsej muag ntau dua. Lub COB yog txoj kev mus yog tias koj xav siv koj lub teeb LED rau lub sijhawm ntev heev; Yog tias koj muab tso rau hauv ib qho peev txheej, SMD yuav ua.
Cia siab tias ci dua, pom tseeb dua. Piv txwv li, COB LED teeb yuav pab tau rau hauv qhov chaw uas muaj qab nthab siab.
Cov txiaj ntsig thiab qhov tsis zoo ntawm COB LED
Cov txiaj ntsig ntawm COB LED * Muaj ntau lub teeb vim muaj kev suav nrog ntau lub diodes.
* Nws siv lub zog tsawg dua thaum tsim cov lumens ntau dua.
* Lub gadget yog compact vim lub teeb emission cheeb tsam txwv. Lub lumen ib square centimeter / nti tau nce ntau heev vim li ntawd.
* Ib lub voj voog ib leeg nrog ob qhov kev sib txuas tsuas yog siv los qhib ntau lub diode chips nyob hauv COB LEDs. Yog li ntawd, yuav tsum muaj cov khoom siv tsawg dua rau txhua lub LED nti kom ua haujlwm zoo. Tsis tas li ntawd, cov cua sov uas tsim los ntawm txhua lub nti LED yuav raug txo los ntawm kev txo qis cov khoom suav thiab tshem tawm cov ntim ntim rau LED nti tsim.
* Qhov ntsuas kub tag nrho ntawm kev sib dhos ua tiav yog tsawg dua vim qhov yooj yim tsis txaus ntseeg hauv lub dab dej sab nraud. Tej yam nyob ntev dua thiab muaj kev vam khom ntau dua thaum lawv khaws cia ntawm qhov kub thiab txias, uas pab koj txuag nyiaj.
* Efficiency yog nce, thiab clarity yog enhanced.
* Nws muaj thaj tsam loj vim nws tuaj yeem npog thaj tsam loj nrog ib nti.
* Muaj peev xwm tiv thaiv kev vibration
COB LED drawbacks suav nrog qhov xav tau rau lub zog sab nraud uas tsim tau zoo. Qhov no tshwm sim vim hais tias cov diodes xav tau qhov tam sim no thiab voltage kom ua haujlwm zoo.
* Kev tsim cov dab dej kub zoo yog qhov tseem ceeb. Yog tias cov cua kub tsis nyob rau qhov raug, overheating yuav ua rau lub diode ua tsis tau. Cov cua kub loj heev yog tsim los ntawm cov teeb pom kev zoo heev uas tau tawg los ntawm qhov chaw me me.
* Cob chipped teeb pom kev zoo yog tsawg dua kho. Qhov no yog kom tag nrho COB coj tuaj yeem hloov nrog ib qho tshiab nyob rau hauv qhov xwm txheej uas ib qho ntawm COB lub diodes ib leeg tawg vim muaj kev ua yuam kev. Txawm li cas los xij, yog tias SMD LED tuag, nws yooj yim los hloov nws thiab rov ua haujlwm ntawm tus nqi txo.
* Muaj kev xaiv xim me ntsis.
* Tus nqi qis dua SMD chips.
Kev siv rau COB LED
Los ntawm kev siv hluav taws xob hauv tsev mus rau kev lag luam, COB LEDs muaj ntau yam kev siv, qee qhov suav nrog:
* Txoj kev teeb pom kev zoo, teeb pom kev zoo siab, teeb pom kev zoo, thiab cov teeb pom kev zoo yuav ua rau txhua tus siv COB LEDs ua teeb pom kev zoo hauv lub xeev (SSL) hloov rau hlau-halide qhov muag teev.
* Vim lawv txoj kab dav dav, lawv tsim nyog hauv LED teeb pom kev zoo rau kev teeb tsa hauv chav nyob thiab chav tsev loj.
* Cov chaw xws li chaw ua si, vaj, lossis chaw ntau pob xav tau ntau lumens thaum hmo ntuj.
* Lwm yam kev siv suav nrog kev hloov cov teeb pom kev zoo fluorescent, LED teeb, lub teeb strips, lub koob yees duab smartphone flash, thiab teeb pom kev yooj yim rau txoj kev hauv tsev thiab txoj kev hauv tsev.
Xaus
Kev siv teeb pom kev zoo tau nce siv COB LEDs raws li cov neeg tsim qauv kawm paub ntau ntxiv txog lawv qhov zoo dua li cov qauv LEDs. Rau txhua tus qauv siv lub teeb ci, nws nyuaj rau tsis quav ntsej lawv vim yog:
* Lawv lub peev xwm kom haum ntau qhov chaw LED hauv qhov chaw me me, ua kom muaj lumens ntau dua
* Lawv txhim kho lub peev xwm hloov cov cua sov mus rau lub dab dej kub
* Lawv lub zeem muag dav dav
* Lawv raug kev txom nyem tsawg dua
* Vim lawv cov qauv yooj yim, lawv tau txo qhov ua tsis tiav.
Qhov tseeb tshaj plaws thiab cov cuab yeej siv niaj hnub no yog COB LEDs. Cias muab tso, lawv ua tau zoo tshaj qhov qub LED technology tam sim no siv nyob rau hauv feem ntau ntawm cov lag luam qhia teeb pom kev zoo nyob rau hauv cov nqe lus ntawm brightness, zog efficiency, thiab lub teeb zoo.
