Nyob rau hauv xyoo tas los no, nrog kev nce qib sai ntawm LED nti thev naus laus zis, kev lag luam daim ntawv thov ntawm LEDs tau dhau los ua neeg paub tab.LED cov khoom yog lub npe hu ua "qhov chaw teeb pom kev zoo" vim lawv qhov me me, kev siv hluav taws xob tsawg, lub neej ua haujlwm ntev, kev ci ntsa iab, kev tiv thaiv ib puag ncig, ruaj khov thiab ruaj khov, nrog rau lub zog txuag hluav taws xob tseem ceeb.Siv ultra-ci thiab high-power LED teeb qhov chaw, nrog cov khoom siv hluav taws xob zoo, nws tuaj yeem txuag tau ntau dua 80% ntawm cov hluav taws xob ntau dua li cov teeb pom kev zoo, thiab qhov ci ci yog 10 npaug ntawm cov teeb ci hauv qab lub zog tib yam.Lub neej ntev yog ntau tshaj 50,000 teev, uas yog ntau tshaj 50 npaug ntawm cov tsoos tungsten filament teeb.LED txais kev txhim khu kev txhim khu kev lag luam siab heev-eutectic vuam, uas lav tag nrho lub neej ntev ntawm LED.Lub luminous pom kev ua tau zoo npaum li cas tuaj yeem siab li 80lm / W lossis ntau dua, ntau yam ntawm LED teeb xim kub muaj, siab xim rendering Performance index, thiab zoo xim rendering.LED lub teeb hlua LED thev naus laus zis tau nce qib nrog txhua hnub dhau los, nws cov kev ua haujlwm luminous ua rau muaj kev cuam tshuam zoo heev, thiab tus nqi pheej yig dua.Raws li cov khoom siv teeb pom kev zoo, nws tau nkag mus rau ntau txhiab tsev neeg thiab txoj kev.
Txawm li cas los xij, cov khoom siv hluav taws xob LED tsis yog yam tsis muaj qhov tsis txaus.Zoo li txhua yam khoom siv hluav taws xob, LED teeb yuav ua kom muaj cua sov thaum siv, ua rau muaj qhov kub thiab txias ntawm lawv tus kheej.LED yog ib qho khoom siv hluav taws xob hauv lub xeev nrog lub teeb me me-emitting nti thaj chaw thiab qhov loj tam sim no los ntawm cov nti thaum ua haujlwm;thaum lub zog ntawm ib qho LED nti yog me me, thiab cov zis luminous flux kuj tsawg.Yog li ntawd, thaum xyaum siv rau cov khoom siv teeb pom kev zoo, feem ntau cov teeb yuav tsum tau Kev sib xyaw ntawm ntau lub teeb ci LED ua rau LED nti denser.Thiab vim hais tias lub photoelectric hloov dua siab tshiab ntawm LED lub teeb qhov chaw tsis siab, tsuas yog li ntawm 15% mus rau 35% ntawm cov hluav taws xob hluav taws xob tau hloov dua siab tshiab rau hauv lub teeb tso zis, thiab qhov seem yog hloov dua siab tshiab rau hauv lub zog hluav taws xob.Yog li ntawd, thaum muaj coob tus LED teeb qhov chaw ua hauj lwm ua ke, ib tug loj npaum li cas ntawm tshav kub zog yuav generated.Yog tias qhov cua sov no tsis tuaj yeem ploj mus sai li sai tau, nws yuav ua rau qhov kub thiab txias ntawm LED lub teeb qhov chaw nce, txo cov photons tawm los ntawm cov nti, txo cov xim kub zoo, ua kom cov laus ntawm cov nti, thiab ua kom lub neej luv. ntawm tus ntaus ntawv.Yog li ntawd, thermal tsom xam thiab pom kev tsim qauv ntawm cov cua kub dissipation qauv ntawm LED teeb ua qhov tseem ceeb heev.
Raws li xyoo dhau los ntawm kev txhim kho ntawm LED cov khoom lag luam hauv kev lag luam, kev tsim qauv kev xav tau tiav heev tau tsim.Raws li lub teeb pom kev zoo tsim qauv tsim qauv, nws yog sib npaug rau sawv ntawm lub xub pwg nyom ntawm cov neeg loj heev.Txawm li cas los xij, nws tsis yog qhov yooj yim heev kom ncav cuag lub xub pwg nyom ntawm cov neeg loj heev.Muaj ntau yam teeb meem uas yuav tsum tau kov yeej hauv kev tsim txhua hnub.Piv txwv li, los ntawm qhov kev xav ntawm tus nqi, hauv kev tsim, nws yog ib qho tsim nyog yuav tsum tau ua kom tau raws li qhov xav tau ntawm cov khoom cua kub dissipation, tab sis kuj txo tus nqi;Tam sim no, txoj kev siv ntau tshaj plaws nyob rau hauv kev ua lag luam yog siv aluminium alloy fins rau cua sov dissipation.Nyob rau hauv txoj kev no, yuav ua li cas cov neeg tsim qauv txiav txim siab qhov sib txawv ntawm qhov fin thiab qhov fin thiab qhov siab ntawm qhov fin, nrog rau kev cuam tshuam ntawm cov qauv ntawm cov khoom ntawm airflow thiab orientation ntawm lub teeb-emitting nto, yuav ua rau inconsistent tshav kub dissipation.Cov no yog cov teeb meem uas plague designers.
Nyob rau hauv cov txheej txheem tsim ntawm LED teeb, muaj ntau txoj hauv kev los txo cov LED hlws ris kub thiab ua kom lub neej ntawm LED: ① Txhim kho cov hluav taws xob hluav taws xob (muaj peb txoj hauv kev hloov hluav taws xob: hluav taws xob hluav taws xob, kev sib hloov hluav taws xob thiab hluav taws xob hloov hluav taws xob) , ②, xaiv Low thermal resistance LED chips, ③, under-load los yog overload siv lub ntsuas hluav taws xob lossis tam sim no ntawm LED (nws pom zoo kom siv 70% ~ 80% ntawm lub zog ntsuas), uas tuaj yeem txo cov kev sib tshuam LED zoo. kub.
Tom qab ntawd txhawm rau ntxiv dag zog rau kev ua kom sov, peb tuaj yeem siv cov txheej txheem hauv qab no: ①, lub tshuab hluav taws xob zoo thib ob;②, txo cov thermal tsis kam ntawm kev teeb tsa kev sib txuas ntawm LED thiab lub tshuab hluav taws xob thib ob;③, txhim khu kev sib cuag ntawm LED thiab lwm yam cua sov dissipation mechanism Lub thermal conductivity ntawm qhov chaw;④, kev tsim qauv siv lub hauv paus ntsiab lus ntawm huab cua convection.
Yog li ntawd, cua sov dissipation yog qhov sib txawv insurmountable rau cov khoom tsim khoom hauv kev lag luam teeb pom kev zoo nyob rau theem no.Nyob rau ntawm lub sijhawm no, kuv ntseeg tias nrog kev hloov pauv ntawm kev siv thev naus laus zis, qhov cuam tshuam ntawm cov cua sov dissipation ntawm LEDs yuav maj mam ua me me.Peb tseem tab tom sim nrhiav txoj hauv kev los txo qhov kub ntawm qhov sib txuas ntawm LEDs, ua kom lub neej ntawm LED, thiab ua kom cov khoom siv tau zoo los ntawm kev siv cov txheej txheem..
Post lub sij hawm: Oct-22-2020