Qhia qhov tseem ceeb ntawm lub teeb dawb LED teeb kub dissipation daws teeb meem
Dec 23, 2016
Qhia qhov tseem ceeb ntawm qhov teeb meem dawb LED teeb kub dissipation
1.Qhov cuam tshuam ntawm tshav kub ntawm high-brightness LED
Thaum tshav kub kub yog concentrated nyob rau hauv lub nti nrog me me, lub nti kub yog nce, lub non-uniform faib ntawm lub thermal stress yog tshwm sim, lub efficiency ntawm lub nti yog txo, thiab lasing efficiency ntawm phosphor yog txo. Thaum qhov kub thiab txias tshaj ib qho nqi, qhov tsis ua hauj lwm tus nqi ntawm cov cuab yeej nce exponentially. Kev txheeb xyuas qhia tau tias txhua txhua 2 C nce hauv qhov ntsuas kub, kev ntseeg tau txo qis los ntawm 10 feem pua. Thaum ntau lub LEDs tau ntom ntom tsim los tsim lub teeb pom kev zoo, qhov teeb meem ntawm tshav kub dissipation yog qhov hnyav dua. Kev daws teeb meem kev tswj xyuas thermal tau dhau los ua qhov yuav tsum tau ua ua ntej rau kev siv lub teeb ci siab LED.
2. lub nti loj thiab kev sib raug zoo ntawm cov cua sov
Txoj kev ncaj ncees tshaj plaws los ua kom lub teeb ci ntawm lub zog LED yog txhawm rau ua kom lub zog nkag, thiab txhawm rau tiv thaiv kom tsis txhob muaj cov txheej txheem saturation, qhov loj ntawm pn hlws ris yuav tsum tau nce raws li; nce lub zog input inevitably ua rau qhov sib txuas qhov kub thiab txias quantum efficiency txo. Ib leeg-tube fais fab yog nyob ntawm lub cuab yeej los txhim kho lub peev xwm kom sov tawm ntawm pn hlws ris, thaum tuav cov ntaub ntawv nti uas twb muaj lawm, qauv, txheej txheem ntim, nti tam sim no ceev thiab tib lub tshav kub dissipation tej yam kev mob, nce lub nti loj, kub yuav nce mus ntxiv.
