M'malo aukadaulo amakono omwe akupita patsogolo mwachangu, mayankho owonetsera a LED asintha kwambiri.Ukadaulo wa LED wasintha ntchito yowunikira, kupereka njira zopatsa mphamvu komanso zokhalitsa kwa ogula ndi mabizinesi.Pakati pa masinthidwe osiyanasiyana a LED, COB (Chip on Board) yatuluka ngati chisankho chapamwamba chifukwa chaukadaulo wake.M'nkhaniyi, tifufuza zifukwa zomwe COB imakhala ndi mwayi kuposa ukadaulo wa SMD (Surface Mount Device) womwe umagwiritsidwa ntchito kwambiri.Kuchokera pakupanga kwake kwamafuta ochepa mpaka kutetezedwa bwino kuzinthu zachilengedwe, COB imapambanadi omwe akupikisana nawo.
1.SMD vs. COB: Chabwino n'chiti?
Zikafika paukadaulo wowonetsera ma LED, opikisana awiri akulu amalamulira msika: SMD ndi COB.Ngakhale kuti Surface Mount Device kwa nthawi yayitali yakhala njira yopangira kuyatsa kwa LED, COB yatuluka ngati njira ina yowopsa.
Mosiyana ndi SMD, yomwe imakhala ndi ma diode a LED omwe amayikidwa pagulu, COB imaphatikiza tchipisi tambiri ta LED mkati mwa gawo limodzi.Kukonzekera kwapadera kumeneku sikumangowonjezera kuwala ndi mphamvu ya kuunikira komanso kumachepetsa kuziziritsa kwa kuwala kwa mtunda wautali.Mapangidwe otsogola a COB amapangitsa kuti pakhale kuwala kosasunthika komwe kumakhala kofanana komanso kumapereka mitundu yayikulu.
II.Kutentha Kochepa Ndi Kutentha Kochepa
Chimodzi mwazabwino zazikulu za COB pa SMD ndi kuthekera kwake kowongolera kutentha.Ukadaulo wa COB umapereka kukana kwamafuta ochepa chifukwa cha kapangidwe kake kocheperako.Kukaniza kwamafuta kumatsimikizira momwe kutentha kumatulutsira mu module ya LED, kupangitsa COB kukhala yothandiza kwambiri pakuchepetsa kutentha.Izi zimapangitsa kuti moyo ukhale wautali komanso kuchepetsa zofunikira zokonzekera komanso kupititsa patsogolo chitetezo ngatiCOB modulessachedwa kutenthedwa.
III.Chitetezo Chabwino Kwambiri Pazinthu Zachilengedwe
Chiwonetsero cha COBimapereka chitetezo chabwino kwambiri kuzinthu zosiyanasiyana zachilengedwe, kuwonetsetsa kukhazikika komanso kudalirika pamikhalidwe yosiyanasiyana.Amachiritsidwa ndi epoxy resin kuti apititse patsogolo chitetezo.Imadzitamandira kwambiri kukana chinyezi, fumbi, static, oxidation, ndi kuwala kwa buluu.Chitetezo chowonjezerekachi chimathandizira njira zowunikira za COB kuti zizikhala bwino m'malo ovuta monga zoikamo panja kapena malo okhala ndi chinyezi chambiri.Kuphatikiza apo, kukana kwabwino kwa COB ku oxidation kumawonetsetsa kuti ma LED amasunga kuwala kwawo komanso kulondola kwamtundu kwa nthawi yayitali, mosiyana ndi anzawo a SMD.
IV.Khalidwe lakuda komanso lakuthwa.
Kapangidwe kaukadaulo wa COB sikuti kumangowonjezera mphamvu zake zowongolera ndi chitetezo komanso kumathandizira pakuwunikira kwake.Chifukwa cha tchipisi tambiri ta LED, COB imatulutsa kuwala kowoneka bwino komanso kowala kwambiri, zomwe zimapangitsa kuti pakhale mithunzi yakuda komanso tsatanetsatane wowoneka bwino.Izi zimapangitsa COB kukhala yoyenera kwambiri pamapulogalamu omwe kulondola komanso kusiyanitsa kwakukulu ndikofunikira, monga malo osungiramo zinthu zakale, malo ogulitsira, ndi nyumba zosungiramo zinthu zakale.Kuwala kokulirapo koperekedwa ndi ukadaulo wa COB kumawonjezera kukopa kowonekera komanso kumveka bwino kwa malo owala.
Pomwe makampani opanga ma LED akupitilira kukula,COB Technologyyatulukira ngati njira yabwino komanso yabwino kwambiri pazowunikira zowonetsera za LED.Makhalidwe ake aukadaulo, monga kutulutsa kwa kuwala kofanana, kutulutsa kwamafuta pang'ono, chitetezo chokwanira kuzinthu zachilengedwe, komanso kuyatsa kwakuthwa, zimapangitsa kuti ikhale njira yosagonjetseka.COB sikuti imangopereka magwiridwe antchito komanso moyo wautali komanso imapereka mawonekedwe abwinoko, omwe ndi ofunikira pamapulogalamu osiyanasiyana.
Chifukwa chakuchulukirachulukira kwake komanso kupita patsogolo kwazinthu zopanga,COB Technologyikupezeka mosavuta kwa ogula ndi mabizinesi padziko lonse lapansi.Kukumbatira Chiwonetsero cha COBMayankho akulonjeza kuti apereka njira zowunikira zowala, zogwira mtima komanso zokhalitsa pomwe tikusintha momwe timaunikira malo athu.
Nthawi yotumiza: Oct-25-2023