Vim li cas cov tsav tsheb LED xav tau kev ua haujlwm siab?
Kev ua haujlwm siab yog qhov kev txuag hluav taws xob tag nrho ntawm LED teeb pom kev zoo, thiab yog lub hauv paus thiab lav qhov kub tsis tshua muaj siab, lub neej ntev thiab kev ntseeg siab.
1) Kev ua haujlwm siab, tsis tshua muaj kev poob qis, qis kub nce
Piv txwv li, LED tsav tsheb fais fab mov nrog cov zis ntawm 100W, thaum qhov ua tau zoo nce mus txog 95 feem pua, nws qhov poob yog 5.2W, thiab thaum qhov ua tau zoo tsuas yog 85 feem pua, nws poob yog 17.6W, qhov kawg yog 3.4 npaug ntawm qhov qub. , qhov kev sim qhia tau hais tias nyob rau hauv tib lub sijhawm, qhov qub Qhov kub thiab txias yog 10-15 degree qis dua qhov tom kawg.
2) Txo qhov kub thiab txias ua haujlwm ntawm LED teeb thiab ncua lub teeb lwj
Qhov nce ntawm qhov kub ntawm LED nti yuav ua rau muaj kev hloov pauv hauv kev ua haujlwm ntawm lub teeb-emitting ntaus ntawv thiab attenuation ntawm electro-optical conversion efficiency, thiab txawm tsis ua hauj lwm nyob rau hauv loj heev mob. Cov kev sim sim tau pom tias qhov luminous flux ntawm LED nws tus kheej txo qis los ntawm 3 feem pua rau txhua 5 degrees Celsius nce qhov kub ntawm LED nws tus kheej.
3) Kev ua haujlwm siab, qis kub nce, lub neej ntev
Yog tias koj xaiv qhov kub-kub electrolytic capacitor nrog lub neej ntev ntawm 10, 000 teev ntawm 105 degrees, thiab raws li lub neej expectancy ntawm electrolytic capacitor, lub tuam txhab kwv yees tias "txhua 10 degrees qis dua, lub neej yog doubled", tom qab ntawd nws lub neej ua haujlwm nyob rau hauv ib puag ncig 95-degree ib puag ncig yog 20,000 teev, thiab ntawm 85 degrees Lub neej ua haujlwm hauv ib puag ncig yog 40,{10}} teev. Piv txwv li, thaum qhov kev khiav hauj lwm kub ntawm Inventronics tsav fais fab mov feem ntau yog 70 degrees, thiab qhov kub ntawm lub electrolytic capacitor yog roughly tswj ntawm txog 85 degrees, lub neej yuav ncav cuag 40,{14}} teev. Yog hais tias nws yog xam los ntawm 12 teev ntawm kev ua hauj lwm ib hnub twg, lub neej expectancy yog ze li ntawm kaum xyoo.
4) Kev ua haujlwm siab, qis kub nce, kev ntseeg siab
Raws li qhov kub ntawm cov khoom siv hluav taws xob txo qis thiab qhov chaw ua haujlwm ntawm ICs thiab lub zog semiconductors txhim kho, MTBF (lub sijhawm nruab nrab ntawm kev ua tsis tiav) yuav nce ntxiv.
