1. Imithetho yokuhlela ingxenye
1).Ngaphansi kwezimo ezijwayelekile, zonke izingxenye kufanele zihlelwe endaweni efanayo yesifunda esiphrintiwe.Kuphela uma izingxenye zesendlalelo esiphezulu ziminyene kakhulu, lapho ezinye izisetshenziswa ezinobude obukhawulelwe kanye nokukhiqiza ukushisa okuphansi, njengezihluthulelo ze-chip, ama-chip Capacitor, ama-IC anamathiselwe, njll. abekwe kusendlalelo esingezansi.
2).Ngokwesisekelo sokuqinisekisa ukusebenza kukagesi, izingxenye kufanele zibekwe kugridi futhi zihlelwe ngokuhambisana nomunye nomunye noma ziqonde ukuze zibe zinhle futhi zihle.Ngokuvamile, izingxenye azivunyelwe ukugqagqana;izingxenye kufanele zihlelwe ngendlela ehlangene, futhi okokufaka nokukhiphayo kufanele kugcinwe kude ngangokunokwenzeka .
3).Kungase kube khona umehluko omkhulu ongase ube khona phakathi kwezingxenye ezithile noma izintambo, futhi ibanga phakathi kwazo kufanele linyuswe ukuze kugwenywe ama-circuits amafushane ngengozi ngenxa yokuphuma nokuwohloka.
4).Izingxenye ezine-voltage ephezulu kufanele zihlelwe ezindaweni ezingafinyeleleki kalula ngesandla ngesikhathi sokulungisa iphutha.
5).Izingxenye ezitholakala onqenqemeni lwebhodi, okungenani amabhodi ama-2 anogqinsi ukusuka emaphethelweni ebhodi
6).Izingxenye kufanele zisatshalaliswe ngokulinganayo futhi zisatshalaliswe ngokuminyene kulo lonke ibhodi.
2. Ngokuvumelana nesimiso sokuhlela isiqondiso sesignali
1).Ngokuvamile hlela indawo yeyunithi ngayinye yesekethe esebenzayo ngayinye ngayinye ngokuya ngokugeleza kwesignali, igxile engxenyeni eyinhloko yesekethe ngayinye esebenzayo, kanye nesakhiwo esizungezile.
2).Ukuhlelwa kwezingxenye kufanele kube lula ekujikelezeni kwesignali, ukuze amasignali angagcinwa ngendlela efanayo ngangokunokwenzeka.Ezimweni eziningi, isiqondiso sokugeleza kwesignali sihlelwa ukusuka kwesobunxele kuya kwesokudla noma ukusuka phezulu kuye phansi, futhi izingxenye ezixhunywe ngokuqondile kumatheminali okokufaka nokukhiphayo kufanele zibekwe eduze nezixhumi zokufaka nezikhiphayo noma izixhumi.
3. Vimbela ukuphazamiseka kukazibuthe 1).Ezingxenyeni ezinemisebe eqinile ye-electromagnetic field kanye nezingxenye ezizwelayo ekwenziweni kazibuthe kagesi, ibanga phakathi kwazo kufanele lenyuswe noma livikelwe, futhi isiqondiso sokubekwa kwengxenye kufanele sihambisane nesiphambano sezintambo eziphrintiwe eziseduze.
2).Zama ukugwema ukuhlanganisa amadivayisi kagesi aphezulu naphansi, kanye namadivayisi anezimpawu eziqinile nezibuthaka axhunywe ndawonye.
3).Ezingxenyeni ezikhiqiza amandla kazibuthe, njengeziguquli, izipikha, ama-inductors, njll., kufanele kuqashelwe ekwehliseni ukusikwa kwezintambo eziphrintiwe ngemigqa yamandla kazibuthe phakathi nesakhiwo.Izikhombisi-ndlela zenkundla kazibuthe zezingxenye eziseduze kufanele zibe perpendicular kwenye ukuze kuncishiswe ukuhlangana phakathi kwazo.
4).Vikela umthombo wokuphazamiseka, futhi isembozo sokuvikela kufanele sibe nesisekelo esihle.
5).Kumasekhethi asebenza kumafrikhwensi aphezulu, umthelela wamapharamitha wokusabalalisa phakathi kwezingxenye kufanele ucatshangelwe.
4. Cindezela ukuphazamiseka okushisayo
1).Ezingxenyeni zokushisa, kufanele zihlelwe endaweni evumela ukuchithwa kokushisa.Uma kunesidingo, i-radiator noma i-fan encane ingafakwa ngokuhlukana ukuze kuncishiswe izinga lokushisa futhi kunciphise umthelela ezingxenyeni eziseduze.
2).Amanye amabhlogo ahlanganisiwe asebenzisa amandla amakhulu, amashubhu amakhulu noma aphakathi kwamandla, ama-resistors nezinye izingxenye kufanele ahlelwe ezindaweni lapho ukuchithwa kokushisa kulula, futhi kufanele ahlukaniswe nezinye izingxenye ngebanga elithile.
3).I-elementi ezwela ukushisa kufanele ibe seduze ne-elementi engaphansi kokuhlolwa futhi igcinwe kude nendawo enezinga lokushisa eliphezulu, ukuze ingaphazanyiswa ezinye izici ezikhiqiza ukushisa ezilinganayo futhi ibangele ukungasebenzi.
4).Lapho ubeka izingxenye ezinhlangothini zombili, ngokuvamile azikho izingxenye zokufudumeza ezibekwe kungqimba olungezansi.
5. Ukuhlelwa kwezingxenye ezilungisekayo
Ngokuhlelwa kwezingxenye ezilungisekayo njengama-potentiometer, ama-capacitor aguquguqukayo, amakhoyili e-inductance alungisekayo noma ama-micro switch, izidingo zesakhiwo somshini wonke kufanele zicatshangelwe.Uma ilungiswa ngaphandle komshini, indawo yayo kufanele ishintshwe ukuze ihambisane nendawo ye-knob yokulungisa kuphaneli ye-chassis;Uma ilungiswa ngaphakathi komshini, kufanele ibekwe ebhodini lesifunda eliphrintiwe lapho ilungiswa khona.Idizayini yebhodi yesekethe ephrintiwe yebhodi lesifunda le-SMT ingenye yezingxenye ezibalulekile ekwakhiweni kwe-surface mount.Ibhodi lesifunda le-SMT lisekela izingxenye zesekethe namadivayisi emikhiqizweni kagesi, eqaphela ukuxhumana kukagesi phakathi kwezingxenye zesekethe namadivayisi.Ngokuthuthuka kobuchwepheshe be-elekthronikhi, umthamo wamabhodi we-pcb uya ngokuya uncipha, futhi ukuminyana kuya ngokuya kukhuphuka, futhi izingqimba zamabhodi we-pcb zikhula njalo.Okuphezulu nangaphezulu.
Isikhathi sokuthumela: May-04-2023