COB LED vs SMD LED: Kuwala, Kuchita Bwino & Mtengo Poyerekeza

Chiyambi

Kuunika kunayamba ngati chida chosavuta chotetezera usiku. Masiku ano, cholinga chake chakula kwambiri. Kupatula kungowoneka bwino, kuunika tsopano kumalamulira momwe malo alili, kumayendetsa kukongola kwa zomangamanga, komanso kumawonetsa zochitika.

Kusintha kumeneku kumadalira kwambiri ukadaulo wamakono. Tasintha kuchoka pa malawi oyambira kupita ku zida zamagetsi zapamwamba (ma LED opangidwa ndi semiconductor). Magetsi amakono awa ndi othandiza kwambiri. Amadya mphamvu yochepa kwambiri ya mababu akale a incandescent ndipo amakhala nthawi yayitali mpaka kuwirikiza nthawi 25.

Ngakhale kuti mawuwa amapezeka paliponse, pali kusatsimikizika kulikonse. Kusamvetsetsana kwina komwe kumachitika nthawi zambiri ndi kuyerekeza LED yachizolowezi ndi SMD ngati kuti ndi ukadaulo wosiyana kwambiri. Kuti zimveke bwino, chipangizo chomwe chimayikidwa mwachindunji pamwamba pa bolodi lamagetsi (SMD kapena Surface Mounted Device) kwenikweni ndi mtundu winawake wa LED. Dzinali limachokera makamaka momwe chip imapakira ndikuyikira pa bolodi.

Pakadali pano, msika wa magetsi ukulamulidwa ndi njira ziwiri zazikulu zopakira magetsi awa:

● TheSMD Njira: Njira imeneyi inasintha kwambiri makampani chifukwa inapangitsa kuti kupanga zinthu zambiri kukhale kothandiza kwambiri. Inalola kuti mitundu yosiyanasiyana isankhidwe.

● TheCOB Njira: Monga njira ina yogwirira ntchito bwino, opanga anayamba kuyika ma chips ambiri owunikira pamodzi molunjika pa maziko amodzi (Chip-on-Board, kapena COB). Kapangidwe kameneka ndi kamtengo wapatali chifukwa kamapanga malo owala kwambiri komanso owunikira.

M'nkhaniyi, tiyerekeza ukadaulo uwu ndikuwona kuti ndi uti womwe uli woyenera kugwiritsa ntchito pazinthu zosiyanasiyana.

Kumvetsetsa Ukadaulo wa LED wa SMD

Momwe Magetsi Amamangidwira

Magetsi amenewa amapangidwa polumikiza ma tchipisi a kuwala pawokha pamalo otchedwa Printed Circuit Board, kapena PCB. Sagwiritsa ntchito miyendo yakale, yachitsulo yomwe imadutsa pa bolodi ndipo imafuna soldering yovuta.

M'malo mwake, makina amaika ziwalozo mwachangu pamwamba pogwiritsa ntchito Surface-Mount Technology, kapena SMT. Izi zimathandiza kupanga mwachangu komanso molondola. Zigawozo zimatsekedwa kosatha m'malo mwake pogwiritsa ntchito njira yotenthetsera yomwe imasungunula chitsulocho ku zigawo zosungunula. Kutentha ndi kupanikizika kumangiriza zigawozo kumalo olumikizirana pa bolodi lotchedwa solder pads. Chigawo chilichonse chaching'ono cha kuwala nthawi zambiri chimakhala ndi ma diode amodzi kapena atatu otulutsa kuwala. Izi nthawi zambiri zimakhala zofiira, zobiriwira, ndi zabuluu. Zonsezi zimasungidwa mkati mwa bokosi limodzi la pulasitiki.

Kugwira Ntchito Bwino ndi Kugwira Ntchito Bwino kwa Mapangidwe

Malinga ndi zomwe makampani apeza, kugwiritsa ntchito makina odzipangira okha popanga magetsi okhala ndi ma IC ophatikizika ndi kopambana kwambiri. Njirayi imakwaniritsa kupanga kopanda cholakwika kwa 99.5%. Uku ndi kusintha kwakukulu poyerekeza ndi 92% yokolola yomwe imapezeka mu njira zotenthetsera wamba.

Ma module apamwamba awa ndi achangu kwambiri. Angasinthe nthawi yawo yowala kapena kuyankha kwa kufooka m'masekondi osakwana 100. Liwiroli limaposa mosavuta makonzedwe wamba a analog. Amagwiritsa ntchito mphamvu zochepa kwambiri poyerekeza ndi kukula kwawo kochepa. Ma module amphamvu kwambiri, monga 5730, amayatsa kuwala kowala kwambiri pa mphamvu zomwe zimagwiritsidwa ntchito. Amatha kukhala ndi mphamvu zowala mpaka 240 lumens pa watt iliyonse.

Kutsika kwa Mphamvu

Ngakhale kuti kuunikira kwamakono kuli kopita patsogolo kwambiri, kumakumanabe ndi zoletsa zina zakuthupi. Mungayembekezere kuti kuyika magetsi ambiri mu kuwala kungapangitse kuwala kofanana. Komabe, pafupifupi, kuchuluka kwa kuwala komwe kumapangidwa pa watt imodzi kumachepa pamene mukukankhira mphamvu zamagetsi zambiri. Chochitikachi chimatchedwa efficiency droop. Chifukwa chachikulu cha kutayika kwa mphamvu kumeneku ndi njira inayake ya atomiki yotchedwa Auger recombination. Pachifukwa chotere, mphamvuyo imatayika mkati m'malo motulutsidwa ngati kuwala.

Zinthu Zapamwamba Zopangira ndi Zowonetsa Zowonekera

Ma nyali amenewa ndi osinthasintha kwambiri ndipo amabwera m'makulidwe osiyanasiyana. Ma model odziwika bwino ndi 2835, 3528, ndi 5050. Manambalawa amangotanthauza kukula kwawo m'mamilimita. Mwachitsanzo, 2835 amatanthauza kukula kwa 2.8 mm ndi 3.5mm. Chifukwa chakuti zinthu zambiri zowala zimayikidwa mu bokosi limodzi, zimapangitsa kuti zikhale zosavuta kutulutsa mitundu yambiri kapena RGB (Red, Green, Blue). Machitidwe amakono owongolera amalola kulamulira chinthu chilichonse chaching'ono pachokha.

Amagwira ntchito ngati malo owunika kwambiri kapena magwero a kuwala kolunjika. Izi zimapangitsa kuti aziwala kwambiri. Komabe, ngati muwayang'ana patali, mungaone madontho a kuwala ndi pixelation. Ma nyali ambiri awa amafalitsa kuwala kwawo kwambiri, nthawi zambiri pakati pa ngodya ya 140° ndi 160°. Komabe, mitundu ina yapadera imakankhira kuwala kumbali, motsatira bolodi. Izi zimagwiritsidwa ntchito m'ma screens owonda kwambiri. Ma nyali awa ndi osavuta kukonza. Ngati mkanda umodzi wa nyali walephera, nthawi zambiri mutha kusintha chidutswa chimenecho. Simuyenera kutaya gawo lonse.

Kufufuza Ukadaulo wa COB LED

Momwe Ma COB Lights Amamangidwira

Kapangidwe ka COB kamakhala kosiyana ndi ka mitundu yakale. M'malo mopatsa kuwala kulikonse malo akeake ndi mafelemu akeake, kamalumikiza ma tchipisi ambiri opanda kuwala mwachindunji pa gawo loyambira. Ndibwino kwambiri kuchotsa kutentha, monga ceramic kapena silicon carbide.

Izi zimathandiza opanga kupereka kuwala kochuluka kwambiri poyerekeza ndi magetsi a SMD. Gulu lonse la ma chips limaphimbidwa ndi chinthu chimodzi chosalala cha phosphor yapadera. Chimasintha kuwala kwa buluu kukhala kutentha koyera kofanana. Ngakhale kuti kuli ma diode ambiri, makina amagetsi ndi osavuta kwambiri. Amagwiritsa ntchito njira imodzi yamagetsi ndi malo awiri olumikizirana.

Kutanthauzira Kwambiri ndi Chidziwitso Chowongolera Kutentha

Malinga ndi zomwe makampani akudziwa, njira yolumikizira mwachindunji iyi imalola kuti madontho ang'onoang'ono a kuwala aziyikidwa pafupi kwambiri. Ma pixel pitches (mpata) pakati pa madontho awa akhoza kukhala abwino ngati P0.4. Kuyandikana kwambiri kumeneku ndikofunikira kwambiri popanga zowonetsera za 4K ndi 8K zapamwamba kwambiri.

Chidziwitso china chikuwonetsa ubwino waukulu wa kutentha. Chifukwa chakuti tchipisi timalumikizidwa mwachindunji kumunsi pogwiritsa ntchito guluu wotentha, chotchinga chomwe chimawonjezera kukana kutentha chimachepa. Izi zimathandiza kutentha kuyenda mwachangu komanso mosavuta kutali ndi kuwala ndikulowa mu sinki yotenthetsera yakunja.

Ubwino Wowoneka ndi Chitonthozo

Kapangidwe ka magetsi awa kamapangitsa kuti azigwira ntchito ngati kuwala kowala pamwamba kuposa madontho amodzi ndi amodzi. Amapanga kuwala kosalala komanso kofewa komwe kumachotsa mithunzi yoopsa. Kumapangitsa mawonekedwe "okhala ndi madontho" a mizere yakale ya kuwala kukhala yachikale. Kuwala kosalala kumeneku ndi kwabwino kwambiri pa malo ogwirira ntchito chifukwa kumakhala kosavuta kumaso ngakhale mutagwiritsa ntchito nthawi yayitali.

Ukadaulowu wathandizanso kugwiritsa ntchito ma flip chips apadera. Kusintha kumeneku kumatsimikizira kuti kuwala kumakhalabe kowala komanso kowoneka bwino ngakhale kuwonedwa kuchokera mbali zina, ndi ngodya yowonera yofanana ya madigiri 170.

Kulimba ndi Kudalirika

Kapangidwe kolimba, kogwirizana ndi chinthu chimodzi kumapereka chitetezo chabwino kwambiri ku dziko lakunja. Magawo awa ndi olimba kwambiri ku zovuta zakuthupi monga kulowa kwa mchenga ndi madzi. Nthawi zambiri amabwera ndi IP65 mpaka IP68. Chifukwa chakuti ma chips ali ndi ma capsules okwanira, mphamvu zawo zopirira kugwedezeka zimakhala zolimba nthawi zisanu kuposa magetsi a SMD. Izi zimapangitsa kuti azidalirika kwambiri m'malo otanganidwa komanso odzaza magalimoto.

Chidziwitso cha makampani chikuwonetsa momwe amadaliridwira. Chiwerengero cha mayunitsi omwe amalephera pa miliyoni imodzi (Failure Rate kapena ppm) pa ma module awa nthawi zambiri chimakhala chochepera 50 ppm. Mosiyana ndi zimenezi, mikanda yowala ya SMD nthawi zambiri imalephera pamlingo wa 200 mpaka 500 ppm.

Tebulo Loyerekeza la Mutu ndi Mutu: COB LED vs SMD LED

Mapulogalamu Odziwika pa Ukadaulo wa SMD

Nthawi Yosankha Ukadaulo wa SMD

Ngati mukufuna kuwala kwambiri, kusinthasintha, komanso kugwiritsa ntchito bwino ndalama pa ntchito yanu yowunikira, magetsi oyika pamwamba (SMD) ndi omwe angakuthandizeni.

● Kugwiritsa Ntchito Panja ndi Zochitika: Zitha kukhala ndi kuwala kwakukulu kwambiri kuposa ma nit 10,000+. Zimenezi zimapangitsa kuti zikhale zosavuta kuziona pa zikwangwani zakunja padzuwa. Zimakhalanso zabwino kwambiri pobwereka zida ndi zochitika zamoyo zomwe zimafuna kukonzedwa pafupipafupi komanso kuchotsedwa. Ndi njira yabwino kwambiri yoyendetsera zinthu chifukwa zimatha kukonzedwa.

● Mlengalenga ndi Ndalama: Ngati mukufuna magetsi okongoletsera, ma SMD ndi abwino kwambiri pa magetsi owonjezera mawu ndi malo ochitira karaoke (KTVs). Amatha kupanga mitundu yambirimbiri pogwiritsa ntchito RGB mixing. Pa mapulojekiti ambiri, amapereka kusakaniza koyenera kwa magwiridwe antchito wamba komanso mtengo wotsika woyambira.

Chidziwitso cha ma LED a SMD

Mukasankha mitundu inayake, ma chips a 3528 ndi omwe ndi abwino kwambiri pa zosowa za mtundu umodzi. Komabe, ngati mukufuna kusintha mitundu, ma chips a 5050 ndi omwe ali abwino kwambiri. Ngati polojekiti yanu ikufuna kuunikira kwa 360° padziko lonse lapansi, muyenera kugwiritsa ntchito ulusi wapadera wa LED. Awa ndi ma chips wamba a SMD omwe amagwira ntchito ndi mphamvu yochepa.

Mapulogalamu Odziwika pa Ukadaulo wa COB

Nthawi Yosankha Ukadaulo wa COB

Ma COB nyali ndi chisankho chabwino kwambiri pa malo ogwirira ntchito, zowonetsera zapamwamba, komanso ntchito zazikulu zamafakitale.

● Zowonetsera Zapamwamba: Zipinda zowulutsira ndi zowongolera zimafuna ukadaulo wa COB chifukwa gwero la kuwala pamwamba limapereka zithunzi "zabwino kwambiri". Sizimakhudza maso. Masitolo ogulitsa apamwamba amagwiritsanso ntchito izi powonetsera zinthu zapamwamba. Amagwiritsa ntchito malo opanda phokoso komanso akuda kwambiri.

● Kugwiritsa Ntchito Mafakitale Ndi Kwapamwamba: Pakugwiritsa ntchito kwambiri, luso lapamwamba la COB lopirira kutentha ndi kulimba limapangitsa kuti likhale labwino kwambiri pazida zazitali zakunja. Izi nthawi zambiri zimagwiritsidwa ntchito m'magalasi amsewu okhala ndi malo okwera komanso pansi pafakitale yotentha. M'mawonekedwe, ndi chisankho chokhacho chanzeru cha ziwonetsero za 4K zapamwamba pomwe mipata ya ma pixel iyenera kusawoneka konse kwa anthu omwe ali pafupi.

Chidziwitso cha Makampani a COB

Akatswiri amaona ukadaulo wa COB ngati tsogolo la makampani opanga magetsi ndi zowonetsera chifukwa ndi maziko opangira mibadwo yotsatira ya zowonetsera kuwala zazing'ono. Ndi chisankho chabwino kwambiri cha magetsi okhala ndi denga lalitali. Kapangidwe kake kamalola opanga kulongedza kuwala kwakukulu mu chipangizo chochepa kwambiri popanda kuwononga mtundu wa kuwala.

Mapeto

Kusankha pakati pa ukadaulo wa magetsi awiriwa kumadalira kwambiri zomwe mukufuna pa ntchito yanu. Kapangidwe ka SMD kakadali muyezo wotsimikizika wa zizindikiro zamalonda komanso zokongoletsera zowala zomwe zimasintha mitundu. Ndikwabwinonso pamapulojekiti osavuta kugwiritsa ntchito komwe magetsi ayenera kukhala osavuta kukonza.

Kumbali inayi, COB ndiye ndalama yabwino kwambiri ngati mukufuna kuti zinthu ziwoneke bwino kwambiri. Imapereka kuwala kosalala, kulimba kwambiri, komanso tsatanetsatane wa chophimba.

Mukapanga chisankho chanu, sankhani wopanga yemwe amayang'anira gawo lililonse la njira yopangira. Kuwongolera njira yonse ndikofunikira kuti muwonetsetse kuti zinthu zonse zikuyenda bwino. Izi ndi zoona makamaka panthawi yovuta ya LED encapsulation. Kaya mukumanga chipinda chowongolera chapamwamba chokhala ndi zowonetsera za COB zaukadaulo kapena mukufuna chipinda chotsika mtengo, chowala kwambiri (high-lumen) Zidutswa za SMD zomangira panja, Glamor Lighting imapereka njira zosiyanasiyana zovomerezeka komanso zotetezedwa mwalamulo (zotetezedwa ndi patent).

Mukhoza kufufuza Mndandanda wa COB LED Strip Light kuti mupeze kuwala kosalala komanso kosalekeza. Kapenanso, mutha kuyang'ana magetsi athu okhala ndi ma chip owongolera omwe ali mkati otchedwa Mndandanda wa Mzere wa LED wa IC Wokhazikika kuti magetsi azigwiritsidwa ntchito bwino kwambiri. Lumikizanani nafe Lero tikupatsani mtengo wokonzedwa bwino womwe ukugwirizana ndi zosowa zanu zaukadaulo.

Mafunso Ofunsidwa Kawirikawiri

1. Kodi kusiyana kwakukulu pakati pa ma LED a SMD ndi COB ndi kotani?

Magetsi a SMD ali ndi ma chips osiyana omwe amaikidwa pa bolodi. Ndi abwino kwambiri posintha mitundu. Magetsi a COB amamanga ma chips ambiri pamodzi pansi pa chophimba chimodzi. Izi zimapangitsa kuti pakhale kuwala kosalala komanso kolimba popanda madontho owoneka.

2. Ndi mtundu uti wa LED womwe ndi wowala komanso wogwira ntchito bwino?

Magetsi a COB nthawi zambiri amagwiritsa ntchito mphamvu zochepa. Amapanga kuwala kwambiri pomwe amagwiritsa ntchito mphamvu zochepa. Amathanso kutentha bwino kwambiri. Komabe, magetsi a SMD amapereka kuwala kwambiri ndipo ndi abwino kwambiri pazowonetsera zambiri komanso zizindikiro zakunja.

3. Kodi magetsi awa ndi osavuta kuwakonza akasweka?

Magetsi a SMD ndi osavuta komanso otsika mtengo kukonza. Ngati kuwala kamodzi kakang'ono kalephera, mumangosintha chinthucho. Magetsi a COB sakonzedwa mosavuta. Ngati pixel yasweka, muyenera kusintha bolodi lonse. Komabe, mayunitsi a COB amamangidwa mwamphamvu kwambiri ndipo nthawi zambiri amakhala nthawi yayitali asanawonongeke.