Cov ntaub ntawv tshawb pom los ntawm ib qho LED dawb lub teeb ntawm cov laus pawg thawj coj saib, pob tshab thiab cov ntaub ntawv pom tau thaum cov LED dawb lub teeb tau sib sau ua ke rau hauv chav teeb pom kev zoo yog ib qho nyiaj me ntsis.
Qhov loj ntawm qhov sib txawv no yog nyob ntawm qhov ntsuas hluav taws xob ntawm lub teeb ua haujlwm ntawm LED thiab tus qauv tsim ntawm lub luminaire, nrog rau ib puag ncig uas siv lub luminaire.
Ua ntej, dab tsi ntawm LED dawb lub teeb yog xaiv.
Qhov no yog qhov tseem ceeb heev, qhov zoo ntawm LED dawb lub teeb tuaj yeem hais tau tias yog qhov tseem ceeb tshaj. Rau qee qhov piv txwv, tib lub LED 14mil dawb lub teeb ntu nti tau siv los ua tus neeg sawv cev, thiab LED dawb lub teeb muab ntim los ntawm dav dav epoxy cob thiab cov kua nplaum dawb thiab pob kua nplaum yog lub teeb rau hauv ib puag ncig 30 degree. Tom qab 1000 teev, cov ntaub ntawv attenuation yog 70% lub teeb lwj; yog ntim nrog D-hom qis-tiv thaiv kua nplaum, hauv qhov qub chaw puag ncig, lub teeb ci yog 45%; yog hais tias hom C-hom cov kua nplaum tiv thaiv tsawg yog ntim, nyob rau hauv qhov chaw qub qub. Yog hais tias B-hom kua nplaum qis cov kua nplaum yog encapsulated, hauv qhov qub kev laus ib puag ncig, lub teeb lwj ntawm txhiab txhiab me yog -3%; yog cov kua nplaum qes-qib qis ntawm hom A, hauv qhov qub qub puag ncig, txhiab phav phav me me poob mus rau -6%.
Vim li cas cov ntim kev sib txawv ua rau muaj qhov sib txawv loj?
Ib qho ntawm cov laj thawj tseem ceeb yog tias LED chips yog ntshai ntawm cua sov. Qee zaum, qhov kub siab tshaj li ib puas qib hauv lub sijhawm luv luv, nws tsis muaj qhov txawv, ntshai tias nws yuav nyob hauv qhov kub thiab txias mus ntev, nws yog qhov tsim kev puas tsuaj rau LED nti.
Feem ntau hais lus, cov thermal conductivity ntawm epoxy resin feem ntau me me. Yog li no, thaum LED nti hluav taws xob, LED nti tawm hluav taws kub, thiab dav dav epoxy resin muaj qhov txwv thermal conductivity, yog li thaum koj dhau los ntawm LED dawb lub teeb sab nraud, qhov kub ntawm LED qhov hluav taws xob yog ntsuas 45 degrees, thiab nruab nrab kub ntawm lub nti hauv cov dawb LED yuav tshaj 80 degrees. Qhov ntsuas kub ntawm LED yog qhov tseeb 80 degrees. Tom qab ntawd, thaum lub LED nti ua haujlwm ntawm qhov kub ntawm lub hlws ntsuas kub, nws yog qhov tsim txom heev, uas ua kom nrawm nrawm ntawm cov laus ntawm LED dawb lub teeb.
Thaum LED nti ua haujlwm, lub chaw kub ua rau muaj qhov kub siab ntawm 100 degrees, thiab cov teeb liab pom tseeb tuaj yeem tso tawm cov cua sov tam sim ntawd los ntawm lub bracket tus pin 98%, yog li txo qhov kev puas tsuaj ntawm tshav kub. Yog li no, thaum LED hluav taws xob dawb lub teeb ci ua kom sov li 60 degrees, nws qhov chaw nruab nrab yog tsuas yog 61 qib.
Nws tuaj yeem pom los ntawm cov ntaub ntawv saum toj no hais tias LED dawb lub teeb ntawm cov txheej txheem ntim tau xaiv los txiav txim siab ncaj qha qhov teeb meem lub teeb ntawm LED teeb.
Post lub sij hawm: Oct-17-2019