Ukuhlelwa okunengqondo kwezingxenye ze-elekthronikhi ebhodini le-PCB kuyisixhumanisi esibaluleke kakhulu sokunciphisa ukukhubazeka kokushisela! Izingxenye kufanele zigweme izindawo ezinamavelu amakhulu kakhulu okuchezuka kanye nezindawo zokucindezeleka okukhulu kwangaphakathi ngangokunokwenzeka, futhi isakhiwo kufanele silingane ngangokunokwenzeka.
Ukuze kwandiswe ukusetshenziswa kwesikhala sebhodi lesifunda, ngikholelwa ukuthi abalingani abaningi bokuklama bazozama ukubeka izingxenye ngokumelene nomkhawulo webhodi, kodwa empeleni, lo mkhuba uzoletha ubunzima obukhulu ekukhiqizeni kanye nomhlangano we-PCBA, ngisho nokuhola. ukungakwazi ukushisela inhlangano oh!
Namuhla, ake sikhulume ngesakhiwo sedivayisi enqenqemeni ngokuningiliziwe
Ingozi yesakhiwo sedivayisi eseceleni kwephaneli
01. Ibhodi lokubumba onqenqemeni lokugaya ibhodi
Uma izingxenye zibekwe eduze kakhulu nomkhawulo wepuleti, i-welding pad yezingxenye izokhishwa lapho kwakhiwa ipuleti yokugaya. Ngokuvamile, ibanga eliphakathi kwephedi lokushisela kanye nonqenqema kufanele libe likhulu kuno-0.2mm, ngaphandle kwalokho i-welding pad yedivayisi enqenqemeni izokhishwa futhi umhlangano ongemuva awukwazi ukushisela izingxenye.
02. Ukwakha ipuleti onqenqemeni V-CUT
Uma unqenqema lwepuleti luyi-V-CUT kaMose, izingxenye zidinga ukuba kude nomkhawulo wepuleti, ngoba ummese we-V-CUT osuka maphakathi nepuleti ngokuvamile ungaphezu kuka-0.4mm kude nonqenqema. i-V-CUT, ngaphandle kwalokho ummese we-V-CUT uzolimaza ipuleti yokushisela, okuholela ekutheni izingxenye azikwazi ukushiselwa.
03. Imishini yokugxambukela kwengxenye
Ukuhlelwa kwezingxenye ezisondele kakhulu emaphethelweni epuleti ngesikhathi sokuklama kungase kuphazamise ukusebenza kwemishini yokuhlanganisa okuzenzakalelayo, njengemishini ye-wave-soldering noma i-reflow welding, lapho ihlanganisa izingxenye.
04. Idivayisi iphahlazeka ezingxenyeni
Lapho ingxenye isondela emaphethelweni ebhodi, amandla ayo amakhulu okuphazamisa idivayisi ehlanganisiwe. Isibonelo, izingxenye ezifana nama-electrolytic capacitors amakhulu, amade, kufanele abekwe kude nomkhawulo webhodi kunezinye izingxenye.
05. Izingxenye zebhodi elincane zonakele
Ngemuva kokuthi umhlangano womkhiqizo usuqediwe, umkhiqizo osikiwe udinga ukuhlukaniswa nepuleti. Phakathi nokuhlukaniswa, izingxenye ezisondele kakhulu onqenqemeni zingase zonakaliswe, ezingase zibe nezikhawu futhi kube nzima ukuzibona futhi zilungise.
Okulandelayo ukwabelana ngekesi lokukhiqiza mayelana nebanga ledivayisi enqenqemeni alanele, okuholela ekulimaleni kuwe ~
Incazelo yenkinga
Kutholakala ukuthi isibani se-LED somkhiqizo siseduze nonqenqema lwebhodi lapho i-SMT ibekwa, okulula ukushaywa ngayo ekukhiqizeni.
Umthelela wenkinga
Ukukhiqizwa nokuthutha, kanye nesibani se-LED kuzophulwa lapho inqubo ye-DIP idlula ithrekhi, ezothinta umsebenzi womkhiqizo.
Isandiso senkinga
Kuyadingeka ukushintsha ibhodi bese uhambisa i-LED ngaphakathi kwebhodi. Ngesikhathi esifanayo, kuzophinde kubandakanye ukuguqulwa kwekholomu yomhlahlandlela wokukhanya kwesakhiwo, okubangela ukubambezeleka okukhulu emjikelezweni wokuthuthukiswa kwephrojekthi.
Ukutholwa kwengozi yamadivayisi asemaphethelweni
Ukubaluleka kokuklama kwengxenye kuyabonakala, ukukhanya kuzothinta i-welding, okusindayo kuzoholela ngokuqondile emonakalweni wedivayisi, ngakho-ke ungaqinisekisa kanjani izinkinga zokuklama ezingu-0, bese uqedela ngempumelelo ukukhiqiza?
Ngomsebenzi wokuhlanganisa nokuhlaziya, I-BEST ingachaza imithetho yokuhlola ngokuya ngemingcele yebanga ukusuka onqenqemeni lohlobo lwengxenye. Iphinde ibe nezinto zokuhlola ezikhethekile zokuhlelwa kwezingxenye zonqenqema lwepuleti, okuhlanganisa izinto eziningi zokuhlola ezinemininingwane eminingi njengedivayisi ephakeme ukuya onqenqemeni lwepuleti, idivayisi ephansi emaphethelweni epuleti, kanye nedivayisi eya kumzila wesitimela unqenqema lomshini, ongahlangabezana ngokugcwele nezidingo zokuklama zokuhlola ibanga eliphephile ledivayisi ukusuka onqenqemeni lwepuleti.
Isikhathi sokuthumela: Apr-17-2023
