A cikin fasahar nunin lantarki ta zamani, ana amfani da nunin LED sosai a cikin siginar dijital, bangon mataki, kayan ado na cikin gida da sauran fagage saboda babban haske, babban ma'anarsa, tsawon rayuwa da sauran fa'idodi. A cikin tsarin masana'anta na nunin LED, fasahar encapsulation ita ce hanyar haɗin gwiwa. Daga cikin su, fasahar encapsulation SMD da fasahar rufewa ta COB sune manyan abubuwan da suka dace. To, menene bambancin su? Wannan labarin zai ba ku cikakken bincike.
1.abin da ke SMD fasaha fasaha, SMD marufi ka'idar
Kunshin SMD, cikakken suna Surface Dutsen Na'ura (Surface Dutsen Na'urar), wani nau'in kayan lantarki ne wanda aka haɗa kai tsaye zuwa fasahar marufi da bugu (PCB). Wannan fasaha ta hanyar madaidaicin na'ura mai sanyawa, guntu LED da aka rufe (yawanci yana ƙunshe da diodes masu haske na LED da abubuwan da suka dace) daidai da aka sanya su a kan pads na PCB, sa'an nan kuma ta hanyar reflow soldering da sauran hanyoyi don gane haɗin lantarki.SMD marufi. fasaha na sa kayan lantarki su zama ƙanana, masu sauƙi a nauyi, kuma suna dacewa da ƙira mafi ƙanƙanta da samfuran lantarki.
2.Amfani Da Rashin Amfanin Fasahar Marufi na SMD
2.1 Fa'idodin Fasahar Marufi na SMD
(1)ƙaramin girman, nauyi mai sauƙi:Abubuwan da aka haɗa marufi na SMD ƙanana ne a cikin girman, mai sauƙin haɗaɗɗen ɗabi'a, masu dacewa da ƙirar ƙananan samfuran lantarki da ƙananan nauyi.
(2)kyawawan halaye masu girma:gajerun fil da gajerun hanyoyin haɗin gwiwa suna taimakawa rage inductance da juriya, haɓaka aikin mitoci mai girma.
(3)Dace don samarwa ta atomatik:dace don samar da injin sanyawa ta atomatik, haɓaka haɓakar samarwa da kwanciyar hankali mai inganci.
(4)Kyakkyawan aikin thermal:kai tsaye lamba tare da PCB surface, m zuwa zafi dissipation.
2.2 SMD Fakitin Fasaha Hasara
(1)ingantacciyar kulawa mai rikitarwa: ko da yake hanyar hawan saman yana ba da sauƙi don gyarawa da maye gurbin abubuwan da aka gyara, amma a cikin yanayin haɗakarwa mai yawa, maye gurbin kowane kayan aiki na iya zama mai wahala.
(2)Iyakantaccen yanki na zubar da zafi:yafi ta hanyar kushin da gel ɗin zafi mai zafi, aikin dogon lokaci mai nauyi zai iya haifar da haɗuwa da zafi, yana shafar rayuwar sabis.
3.mene ne fasahar marufi na COB, ka'idar marufi COB
Kunshin COB, wanda aka fi sani da Chip on Board (kunshin kan allo), guntu ne mara nauyi wanda aka weƙa kai tsaye akan fasahar marufi na PCB. Ƙayyadaddun tsari shine guntu maras kyau (jiki na guntu da I / O tashoshi a cikin crystal a sama) tare da m ko thermal m bonded zuwa PCB, sa'an nan ta hanyar waya (kamar aluminum ko zinariya waya) a cikin ultrasonic, karkashin aikin. na matsin zafi, tashoshin I/O na guntu da pad ɗin PCB an haɗa su, kuma a ƙarshe an rufe su da kariyar mannen guduro. Wannan ƙyalli yana kawar da matakan ƙyalli na fitilar fitilar LED na gargajiya, yana sa kunshin ya zama ƙarami.
4.A abũbuwan amfãni da rashin amfani na COB marufi fasahar
4.1 Fa'idodin fasahar fakitin COB
(1) ƙaramin kunshin, ƙaramin girma:kawar da fil ɗin ƙasa, don cimma ƙaramin girman kunshin.
(2) mafi kyawun aiki:wayar zinare da ke haɗa guntu da allon kewayawa, nisan watsa siginar gajere ne, rage yawan magana da inductance da sauran batutuwa don inganta aikin.
(3) Kyakkyawar zubar zafi:guntu yana waldawa kai tsaye zuwa PCB, kuma zafi yana bazuwa ta cikin dukkan allon PCB, kuma zafi yana cikin sauƙi.
(4) Ƙarfin aikin kariya:cikakken zane mai rufewa, tare da hana ruwa, tabbatar da danshi, ƙura-hujja, anti-a tsaye da sauran ayyukan kariya.
(5) Kwarewar gani mai kyau:a matsayin tushen hasken haske, aikin launi ya fi haske, mafi kyawun aiki daki-daki, dace da kallon kusa da dogon lokaci.
4.2 COB fakitin fasaha rashin amfani
(1) Matsalolin kulawa:guntu da PCB waldi kai tsaye, ba za a iya rarraba daban ko maye gurbin guntu ba, farashin kulawa yana da yawa.
(2) tsauraran buƙatun samarwa:tsarin marufi na buƙatun muhalli yana da girma sosai, baya ƙyale ƙura, wutar lantarki da sauran abubuwan gurɓatawa.
5. Bambanci tsakanin SMD fasaha fasaha da fasahar marufi COB
SMD encapsulation fasahar da COB encapsulation fasahar a fagen LED nuni kowane yana da nasa fasali na musamman, bambanci tsakanin su ne yafi nuna a cikin encapsulation, girma da kuma nauyi, zafi dissipation yi, sauƙi na kiyayewa da aikace-aikace yanayin. Mai zuwa shine cikakken kwatance da nazari:
5.1 Hanyar shiryawa
⑴ SMD fasahar marufi: cikakken suna shine Surface Dutsen Na'ura, wanda fasaha ce ta marufi wacce ke sayar da guntuwar LED guntu a saman allon da'irar da aka buga (PCB) ta hanyar injin faci. Wannan hanya tana buƙatar guntuwar LED ɗin da za a haɗa shi a gaba don samar da wani sashi mai zaman kansa sannan a saka shi akan PCB.
Fasahar fakitin COB: cikakken suna shine Chip on Board, wanda fasaha ce ta marufi wacce ke siyar da guntu maras amfani kai tsaye akan PCB. Yana kawar da matakan marufi na beads na fitilar LED na gargajiya, yana ɗaure guntu kai tsaye zuwa PCB tare da manne mai ɗaukar hoto ko thermal, kuma yana gane haɗin lantarki ta hanyar waya ta ƙarfe.
5.2 Girma da nauyi
⑴ SMD marufi: Kodayake abubuwan da aka gyara suna da ƙananan girman, girman su da nauyin su har yanzu suna iyakance saboda tsarin marufi da buƙatun kushin.
⑵COB kunshin: Saboda tsallake na kasa fil da kunshin harsashi, COB kunshin samun mafi matsananci compactness, sa kunshin karami da haske.
5.3 Ayyukan zubar da zafi
⑴ SMD marufi: Yawanci yana watsar da zafi ta hanyar pads da colloids, kuma yankin da ake zubar da zafi yana da iyaka. Ƙarƙashin haske mai girma da yanayin kaya mai girma, zafi na iya kasancewa a cikin yanki na guntu, yana shafar rayuwa da kwanciyar hankali na nuni.
Kunshin COB: Ana walda guntu kai tsaye akan PCB kuma za'a iya bazu zafi ta dukkan allon PCB. Wannan zane yana inganta haɓaka aikin zafi na nuni kuma yana rage yawan gazawar saboda yawan zafi.
5.4 Sauƙaƙan kulawa
⑴ SMD marufi: Tun da an ɗora abubuwan da aka gyara a kan PCB, yana da sauƙin maye gurbin abu ɗaya yayin kulawa. Wannan yana da amfani don rage farashin kulawa da rage lokacin kulawa.
⑵COB marufi: Tun da guntu da PCB ana waldasu kai tsaye gabaɗaya, ba zai yuwu a ƙwace ko maye gurbin guntu daban ba. Da zarar kuskure ya faru, yawanci ya zama dole a maye gurbin dukkan allon PCB ko mayar da shi zuwa masana'anta don gyarawa, wanda ke ƙara tsada da wahalar gyarawa.
5.5 Yanayin aikace-aikace
⑴ SMD marufi: Saboda girman balaga da ƙarancin samarwa, ana amfani da shi sosai a kasuwa, musamman a cikin ayyukan da ke da tsadar tsada kuma suna buƙatar sauƙin kulawa, kamar allunan talla na waje da bangon TV na cikin gida.
⑵ COB marufi: Saboda babban aiki da kariya mai girma, ya fi dacewa da babban allon nuni na cikin gida, nunin jama'a, dakunan kulawa da sauran wuraren da ke da manyan buƙatun ingancin nuni da mahalli masu rikitarwa. Alal misali, a cikin cibiyoyin umarni, ɗakunan studio, manyan wuraren aikawa da sauran wurare inda ma'aikata ke kallon allon na dogon lokaci, fasahar marufi na COB na iya samar da ƙwarewar gani mai laushi da uniform.
Kammalawa
Fasahar fakitin SMD da fasahar marufi na COB kowannensu yana da fa'ida ta musamman da yanayin aikace-aikacen a fagen nunin nunin LED. Masu amfani yakamata su auna kuma su zaɓi bisa ga ainihin buƙatu lokacin zabar.
Fasahar fakitin SMD da fasahar marufi na COB suna da nasu fa'idodin. Ana amfani da fasahar fakitin SMD sosai a kasuwa saboda girman balagarta da ƙarancin samarwa, musamman a cikin ayyukan da ke da tsada kuma suna buƙatar sauƙin kulawa. Fasahar fakitin COB, a gefe guda, yana da ƙarfi mai ƙarfi a cikin babban nunin nunin gida na cikin gida, nunin jama'a, ɗakunan kulawa da sauran filayen tare da ƙaƙƙarfan marufi, mafi girman aiki, haɓakar zafi mai kyau da aikin kariya mai ƙarfi.
Lokacin aikawa: Satumba-20-2024
