Cov yam ntxwv cuam tshuam rau qhov zoo thiab kev lwj ntawm LED hnub ci teeb
Ua ntej, xaiv yam ntawm LED hnub ci teeb.
Qhov no yog qhov tseem ceeb heev, qhov zoo ntawm LED hnub ci teeb tuaj yeem hais tias yog qhov tseem ceeb heev. Txhawm rau muab qee qhov piv txwv, tib lub 14mil dawb lub teeb ntu nti yog sawv cev los ntawm LED hnub ci teeb ntim nrog cov epoxy resin primer zoo tib yam thiab lub teeb dawb nplaum thiab encapsulating kua nplaum.
Ib lub teeb nyob rau hauv ib puag ncig 30-degree, ib txhiab teev tom qab ntawd, cov ntaub ntawv attenuation yog lub luminous tu tus nqi ntawm 70%; Yog hais tias nws yog encapsulated nrog D-type low-failure kua nplaum, lub teeb attenuation yog 45% ib txhiab teev nyob rau hauv tib qhov chaw laus; Yog hais tias nws yog encapsulated nrog C-hom tsis ua hauj lwm kua nplaum, tib lub sij hawm lub teeb lwj yog 12%; Yog tias Class B cov kua nplaum ua tsis tau zoo yog encapsulated, nyob rau hauv tib qhov kev laus ib puag ncig, lub teeb tawg ntawm txhiab teev yog 3%; Yog tias Class A tsis ua haujlwm qis, nyob rau hauv tib lub sijhawm laus, lub teeb pom kev puas tsuaj ntau txhiab teev yog 6%.
Thib ob, kev ua haujlwm ambient kub ntawm LED hnub ci teeb.
Raws li cov ntaub ntawv ntawm ib lub teeb ci LED hnub ci thaum nws laus yog tias tsuas yog ib lub teeb ci LED hnub ci ua haujlwm, thiab qhov kub thiab txias yog nyob ntawm 30 degrees, ces qhov kub ntawm lub bracket thaum ib lub teeb dawb LED ua haujlwm yuav tsis ntau tshaj 45. qib. Lub sijhawm no, lub neej ntawm LED no yuav zoo tagnrho.
Yog tias muaj 100 LED hnub ci teeb ua haujlwm tib lub sijhawm, thiab lub sijhawm nruab nrab ntawm lawv tsuas yog 11.4 hli, ces qhov kub ntawm lub bracket ntawm LED hnub ci teeb nyob ib ncig ntawm pawg yuav tsis pub tshaj 45 degrees, tab sis cov LED hnub ci teeb muaj qhov kub thiab txias. kub siab uas yuav ncav cuag 65 degrees. Lub sijhawm no, LED teeb hlaws dai yog qhov kev sim. Tom qab ntawd, LED hnub ci teeb uas sib sau ua ke nyob rau hauv nruab nrab yuav theoretically muaj lub teeb nrawm dua, thaum lub teeb ci LED hnub ci nyob ib ncig ntawm pawg yuav muaj lub teeb qeeb qeeb.
Txawm li cas los xij, txhua tus yuav tsum paub tias LED ntshai tshav kub. Qhov kub thiab txias dua, LED lub neej luv dua, qhov kub thiab txias, LED lub neej ntev dua. Qhov zoo tshaj plaws kev ua haujlwm kub ntawm LED yog qhov tseeb ntawm qhov rho tawm 5 thiab xoom degrees. Tab sis qhov no yog ua tsis tau.
Yog li ntawd, tom qab peb nkag siab txog qhov ua haujlwm zoo tshaj plaws ntawm LED hnub ci lub teeb hlaws, peb sim peb qhov zoo tshaj plaws los txhim kho kev ua haujlwm ntawm cov hluav taws xob hluav taws xob thiab hluav taws xob tawg thaum tsim teeb. Txawm li cas los xij, qhov kub thiab txias, qhov ntev ntawm LED lub neej.
peb, kev ua haujlwm hluav taws xob tsis zoo ntawm LED teeb hlaws yog tsim.
Raws li cov txiaj ntsig kev sim, qhov txo qis ntawm kev tsav tsheb tam sim no ntawm LED hnub ci teeb, qhov me dua cov cua sov tawm, tau kawg, qhov qis dua qhov ci. Raws li kev soj ntsuam, kev tsim ntawm LED hnub ci teeb pom kev zoo Circuit Court, kev tsav tsheb tam sim no ntawm LED feem ntau tsuas yog 5-10mA; cov khoom lag luam nrog ntau lub teeb hlaws, xws li ncav cuag ntau dua 500, lossis ntau dua, kev tsav tsheb tam sim no feem ntau tsuas yog 10-15mA Txawm li cas los xij, kev tsav tsheb tam sim no ntawm LED daim ntawv thov teeb pom kev zoo tsuas yog 15-18mA, thiab ob peb tus neeg tsim cov tam sim no. siab tshaj 20mA.
Cov txiaj ntsig kev sim kuj tseem qhia tau tias nyob rau hauv kev tsav tsheb tam sim no ntawm 14mA, thiab lub hau npog yog impervious rau huab cua, qhov kub ntawm cov huab cua sab hauv mus txog 71 degrees, cov khoom siv qis qis muaj xoom lub teeb attenuation hauv 1000 teev, thiab 3% hauv 2000. teev. Qhov no qhia tau hais tias kev siv cov teeb pom kev zoo li no qis qis LED hnub ci tau mus txog nws qhov siab tshaj plaws hauv ib puag ncig, thiab qhov kev puas tsuaj loj tshaj plaws yog rau nws.
Vim tias lub rooj tsav xwm kev laus rau kev laus tsis muaj cua sov dissipation muaj nuj nqi, cov cua sov tsim los ntawm LED thaum lub sijhawm ua haujlwm tsis tuaj yeem ua rau sab nraud. Qhov no yog ua pov thawj sim. Cov huab cua kub hauv lub rooj tsavxwm laus tau mus txog qhov kub ntawm 101 degrees, thiab qhov kub ntawm lub hau npog ntawm lub rooj tsav tsheb laus tsuas yog 53 degrees, uas yog qhov sib txawv ntawm kaum ob degrees. Qhov no qhia tau hais tias lub hau yas tsim tsis muaj kev ua haujlwm ntawm cov khoom siv hluav taws xob thiab cov cua sov dissipation.
Txawm li cas los xij, feem ntau, lub teeb tsim, kev ua haujlwm ntawm cov cua sov thiab cov cua kub dissipation yog suav tias yog. Yog li ntawd, nyob rau hauv cov ntsiab lus, tus tsim ntawm kev ua hauj lwm hluav taws xob tsis ua hauj lwm ntawm lub LED teeb hlaws yuav tsum tau raws li qhov tseeb qhov teeb meem.
Yog hais tias lub tshav kub conduction thiab tshav kub dissipation muaj nuj nqi ntawm lub teeb yog zoo heev, nws tsis muaj teeb meem yog hais tias tus tsav tam sim no ntawm lub LED hnub ci teeb yog nce me ntsis, vim hais tias cov LED teeb hlaws dai ua hauj lwm lub tshav kub yuav raug xa tawm mus rau sab nraud tam sim ntawd, tsis muaj. kev puas tsuaj rau LED, uas yog kev saib xyuas zoo tshaj plaws rau LED. Ntawm qhov tsis sib xws, yog tias qhov kub thiab txias dissipation muaj nuj nqi ntawm lub teeb yog li ntawd, nws yog qhov zoo dua los tsim lub voj voog me me thiab cia nws tso tawm tsawg dua.