Ua kom kub siab ua haujlwm ntawm Lub Teeb-emitting Diode Structure

LED teeb hlaws dai cov chips, cov kev txawj tsis tau ntim tau tsis ntev los no ua rau muaj kev lag luam siab hauv kev lag luam LED. Vim yog cov tsoos LED teeb hlaws dai, cov txheej txheem tsim cov txheej txheem ntawm kev tsim cov cua sov dissipation, lub teeb tsis ua hauj lwm thiab lwm yam kev txawj fwj. LED teeb hlaws hlais cov chips thiab cov txuj ci tsis tau ntim thaum ntxov li 10 xyoo dhau los, lub teb chaws txawv teb chaws los nqis peev hauv kev tshawb fawb loj loj. Lub hom phiaj ntawm LED teeb hlaws los ntawm substrate kua nplaum thiab grain welding kev txawj ntse. Nws raug tshem tawm tag nrho los ntawm LED teeb hlaws hlaws cov ntaub ntawv hauv cov tsos ntawm ntau cov kab mob plaub hau, tso cai rau LED teeb hlaws kom tiv taus qhov kub thiab txias thiab txuas ntxiv LED teeb hlaws. Kev lag luam yog thoob plaws cov kev txawj ntse ntawm LED teeb hlaws ntim ntim. & LED Teeb Teeb Daspeed Muaj pes tsawg wnbsp; tab sis cov lus nug yog: Vim li cas LED teeb hlaws dai cov txuj ci? Kev cia siab rau aluminium (tooj liab) substrates, ceramic substrate processing molding, thiab installation tsis yooj yim li hlau substrates, vim hais tias (ob zaug) tin welding yuav tsum tiv taus 280 degrees kub, uas tsis tuaj yeem pab tab sis ua rau cov khoom thiab cov khoom puas. Ceramic substrates thiab hlau substrates tsis siab tshaj qhov kev xav txog tus nqi, thiab cov nyhuv ntawm lub teeb pom kev zoo yog qhov nyuaj rau kev txhim kho. Qhov tsawg kawg nkaus thermal conduction tus nqi ntawm ceramic substrates thiab qhov txwv nti tiv toj cheeb tsam kuj txwv nws cov teeb pom kev ruaj khov. LED teeb hlaws nchuav txheej txheem ob zaug hla tin welding thiab ceramic substrate aluminium substrate dual thermal kuj yog txaus los offset lub sab sauv cua xwb hais. Tsis tas li ntawd, qhov kub siab vuam thiab reflux vuam ntawm LED teeb hlaws yog qhov siab heev, thiab cov txiaj ntsig tsis ruaj khov. Los ntawm qhov kev xav ntawm cov neeg siv kawg, cov khoom siv LED zoo yuav tsum muaj lub teeb pom kev zoo dua, kev ua haujlwm siab dua, cov nqi qis dua thiab kev nqis peev sai dua. Tuav LED teeb hlaws nchuav kev txawj ntse yav tom ntej (LM yuan) tus nqi. Hauv kev nkag siab, LED teeb hlaws ntim ntim cov kev txawj ntse yog kev txhim kho thiab kev tsim khoom ntawm kev ntim khoom. COB LED teeb hlaws encapsulation thiab ib leeg-chip LED teeb hlaws ntim tau nthuav tawm ntau lub zog ntawm lub teeb muaj zog, cua sov dissipation, lub teeb faib, nqi, thiab lwm yam. Cov tsoos COB LED teeb hlaws tam sim no yog lub bracket uas siv txhuas (los yog tooj liab) substrates los ua ke FR4 fiber board rau hauv ib qho. Domestic FR-4 semi-kho ntsiav tshuaj, thermal conductivity tsuas yog 0.3 / m-k, qhov zoo tshaj plaws nkag tsuas yog 2.0 / m-k ntawm cov tub lag luam, thaum cov ntshiab txhuas cua sov coefficient yog 237 / m-k. Nws yuav tsum ua kom cov cua sov ua haujlwm ntawm lub cev, ua rau cov teeb ci LED loj heev kom lwj thiab txo cov kev pab cuam lub neej. Yog li ntawd, tib neeg lub siab-rau-lub siab lub tswv yim tshem tawm cov rwb thaiv tsev fiber ntau ntawm aluminium substrates. “LMCOB bracket ”(Kev khawb cov tawv tooj liab thiab insulating txheej ntawm aluminium substrate), tab sis nws yog txwv rau vim li cas rau cov khoom siv, gel, txheej txheem thiab nqi, thiab tseem tsis tau tshaj tawm. Tsis tas li ntawd, kev lag luam tam sim no yog dav dav thiaj li hu ua “Integrated teeb qhov chaw ”Scholar, lees txais cov txheej txheem txhaj tshuaj molding rau inlaid electrode phaj hauv PPA (lossis EMC uas tam sim no thawb), vim tias PPA yuav dhau los ua cov hmoov daj nyob rau hauv siab sov thiab ultraviolet irradiation, ua rau cov dej ua pa thiab dej. Qhov kev teeb tsa yog vim tias cov phaj electrode siab dua cov nti 1.5 tus muam, thiab nws cov hmoov fluorescent thiab cov tshuaj gel yog qub heev. Tsis tsuas yog nws yuav nce tus nqi ntawm cov ntim, tuab heev colloids tseem yuav cuam tshuam rau kev xa khoom. Tam sim no, tag nrho cov COB LED teeb hlaws hlaws tsis muaj qhov tshwj xeeb los teeb tsa cov txheej txheem thaiv kom cuam tshuam cov pos hniav fluorescent tsis sib haum, vim tias lub pas dej da dej thiab cov roj dawb absorbing lub teeb. Keeb kwm, qhov kev siv ntawm lub teeb thiab tshav kub hloov ntawm lub nroog yog ib qho tseem ceeb vim li cas rau lub sij hawm lub teeb nyhuv ntawm cov tsoos COB LED teeb hlaws teeb lub teeb qhov chaw thiab qhov teeb meem ntawm khov kho-state teeb nyhuv. Hauv kev tsim ntawm LED teeb hlaws, feem ntau nug 5052LED teeb hlaws lo lus nug yog yuav ua li cas xaiv lub zog tsav tsheb, thiab qhov tseeb LED cov hlaws hlaws tau poob los yog rhuav tshem, thiab kev faib ua feem ntawm kev tsav tsheb muaj peev xwm. Lub teeb hlaws teeb pom kev txawj luv luv board. Txawm li cas los xij, COB LED teeb hlaws aluminium substrates tau lees txais cov txheej txheem ntim khoom ntawm lub zog thermal, thiab (cov nti tau hais ncaj qha rau ntawm lub substrate).