4 yog vim li cas rau qhov kub thiab txias tshwm sim ntawm LED teeb hlaws
Lub pn hlws ris ntawm lub semiconductor yog lub hauv paus qauv ntawm LED teeb hlaws! Kev nthuav dav Tom qab kev tshawb fawb ntawm LED, qhov kawg xaus yog: thaum lub LED nyob rau hauv ib txwm ua hauj lwm, thaum lub tam sim no ntws los ntawm lub LED, qhov kub ntawm lub pn hlws ris yuav maj mam nce, yog li qhov phem tshwm sim yog hu ua hlws ris kub. lub teeb ci LED! Lub nti loj ntawm LED teeb hlaws yog me me, yog li peb tuaj yeem hu rau qhov kub ntawm cov nti raws li qhov sib txuas kub! Muaj ntau ntau qhov laj thawj rau qhov kub thiab txias ntawm LED teeb hlaws:
Yog vim li cas ib:
Muaj ntau qhov kev tawm tsam hauv lub cev muaj zog ntawm LED teeb hlaws. Thaum cov kev tawm tsam tau ntxiv rau ib leeg, cov kev ua haujlwm ntawm LED teeb hlaws yuav raug tsim! Thaum cov tam sim no ntws los ntawm pn hlws ris, tib lub sij hawm, nws kuj ntws los ntawm cov resistors, ua rau Joule tshav kub, thiab thaum kawg lub nti hlws ris kub nce.
Yog vim li cas ob:
Ntu pn tsis tuaj yeem ua tau zoo, thiab kev txhaj tshuaj ntawm LED teeb hlaws yuav tsis ncav cuag 100 feem pua! Cov nyhuv no txhais tau hais tias thaum lub teeb ci LED hlaws ua haujlwm, ob qho tib si thaj av p thiab thaj tsam n yuav txhaj cov nqi rau ib leeg. Nyob rau hauv ib txwm muaj xwm txheej, hom tom kawg ntawm kev txhaj tshuaj yuav tsis tsim cov nyhuv photoelectric thiab yuav tau noj nyob rau hauv daim ntawv ntawm tshav kub dissipation! Txawm hais tias ib feem ntawm cov nqi raug txhaj, nws yuav tsis yog txhua yam los ua lub teeb ci. Yuav yeej ib txwm muaj ib feem ntawm nws ua ke nrog cov impurities cuam tshuam los yog tsis xws luag, uas thaum kawg yuav ua kom sov!
Yog vim li cas peb:
Nws tau raug pov thawj los ntawm kev sim hais tias qhov kev txwv ntawm luminous efficiency yog qhov tseem ceeb uas ua rau muaj kev sib tshuam ntawm qhov kub thiab txias ntawm LED teeb hlaws. Tam sim no, muaj kev loj hlob ntawm cov khoom siv LED thiab cov khoom siv hluav taws xob tsim cov txheej txheem uas tso cai rau LED teeb hlaws rau cov khoom siv hluav taws xob feem ntau. Tom qab hloov dua siab tshiab, thaum kawg Hloov mus rau photovoltaics. Txij li cov khoom siv ntawm cov nti hauv lub teeb ci LED hlaws muaj ntau dua ntawm cov coefficients refraction ntau dua li qhov nyob ib puag ncig, feem ntau ntawm cov photons (90 feem pua) tsim nyob rau hauv lub teeb hlaws tsis tuaj yeem ntws tawm ntawm qhov sib cuam tshuam. Lub interface ntawm lub nti thiab lub nplhaib tsim ib qho emission phenomenon. Tom qab ntau cov emissions sab hauv, nws yog thaum kawg absorbed los ntawm cov ntaub ntawv nti los yog hauv qab ntawm lub nplhaib, thiab generates tshav kub los ntawm lattice vibration, uas ua rau lub junction kub maj mam nce!
Thaum kawg, lub peev xwm ua kom sov ntawm lub teeb ci LED hlaws yog qhov tseem ceeb uas txiav txim siab nws tus kheej qhov kub thiab txias! Yog hais tias lub tshav kub dissipation nyhuv yog zoo, qhov sib txuas kub yuav poob lawm. Thiab yog tias qhov ntsuas kub dissipation muaj peev xwm raug kuaj xyuas, qhov sib txuas kub yuav nce! Txij li thaum cov epoxy resin yog cov khoom siv thermal conductivity tsawg, qhov ua tau ntawm cov cua sov tsim ntawm pn hlws ris yog dissipated rau ib puag ncig los ntawm pob tshab epoxy yuav luag xoom. Feem ntau ntawm cov cua sov lub zog yog dissipated los ntawm hauv qab, plhaub, nyiaj paste, epoxy bonding txheej txheem, hauv qab thiab PCB los yog lub dab dej kub. Obviously, thermal conductivity ntawm cov ntaub ntawv muaj feem xyuam kuj txiav txim siab thermal conductivity ntawm LEDs. ib qho cuam tshuam!
Benwei Teeb pom kev zoo yog LED Tube, LED dej nyab teeb, LED Vaj Huam Sib Luag Teeb, LED High Bay, LED chaw tsim tshuaj paus nrog 12 xyoo kev paub. Yog tias koj xav yuav lub teeb zoo LED dej nyab lub teeb lossis muaj kev nkag siab ntau ntxiv ntawm daim ntawv thov ntawm LED dej nyab teeb, thov hu rau peb nug, peb lub vev xaib:
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