PCB chipangizo masanjidwe si chinthu mongoganizira, ili ndi malamulo ena amene ayenera kutsatiridwa ndi aliyense.Kuphatikiza pa zofunikira zonse, zida zina zapadera zimakhalanso ndi zofunikira zosiyana.
Zofunikira pamapangidwe a zida zopangira crimping
1) Sipayenera kukhala zigawo zapamwamba kuposa 3mm 3mm kuzungulira chokhota / chachimuna, chopindika / chachikazi chopondera, ndipo pasakhale zida zowotcherera mozungulira 1.5mm;mtunda kuchokera kumbali ina ya chipangizo cha crimping kupita ku pini hole pakati pa chipangizo cha crimping ndi 2.5 Sipadzakhala zigawo zapakati pa mm.
2) Pasakhale zigawo mkati mwa 1mm kuzungulira chipangizo chowongoka / chachimuna, chowongoka / chachikazi;pamene kumbuyo kwa chipangizo chowongoka / chachimuna, chowongoka / chachikazi chiyenera kuikidwa ndi sheath, palibe zigawo zomwe ziyenera kuikidwa mkati mwa 1mm kuchokera pamphepete mwa sheath Pamene sheath siiyikidwa, palibe zigawo zomwe ziyenera kuikidwa mkati mwa 2.5mm. kuchokera ku dzenje la crimping.
3) Socket ya plug yamoyo yolumikizira pansi yomwe imagwiritsidwa ntchito ndi cholumikizira cha ku Europe, kumapeto kwa singano yayitali ndi nsalu yoletsedwa ya 6.5mm, ndipo singano yayifupi ndi nsalu yoletsedwa ya 2.0mm.
4) Pini yayitali ya 2mmFB pini yamagetsi imodzi ya PIN imagwirizana ndi nsalu yoletsedwa ya 8mm kutsogolo kwa socket imodzi.
Zofunikira pamapangidwe a zida zotenthetsera
1) Pakapangidwe kachipangizo, sungani zida zowunikira kutentha (monga electrolytic capacitors, crystal oscillators, etc.) kutali ndi zida zotentha kwambiri momwe mungathere.
2) Chipangizo chotenthetsera chimayenera kukhala pafupi ndi gawo lomwe likuyesedwa komanso kutali ndi malo otentha kwambiri, kuti zisakhudzidwe ndi zigawo zina zotentha zofanana ndi mphamvu ndikuyambitsa kusagwira ntchito.
3) Ikani zinthu zopangira kutentha komanso zosagwira kutentha pafupi ndi potulutsa mpweya kapena pamwamba, koma ngati sizingathe kupirira kutentha kwakukulu, ziyeneranso kuikidwa pafupi ndi mpweya wolowera, ndikumvetsera kukwera mumlengalenga ndi kutentha kwina. zipangizo ndi kutentha tcheru zipangizo mmene ndingathere Kugwedezeka pa malo mbali.
Zofunikira zamapangidwe ndi zida za polar
1) Zipangizo za THD zokhala ndi polarity kapena mayendedwe zimakhala ndi njira yofananira pamapangidwe ndipo zimakonzedwa bwino.
2) Mayendedwe a SMC opangidwa ndi polarized pa board ayenera kukhala osasinthasintha momwe angathere;zida zamtundu womwewo zimakonzedwa bwino komanso mokongola.
(Magawo okhala ndi polarity akuphatikizapo: electrolytic capacitors, tantalum capacitors, diode, etc.)
Zofunikira pamapangidwe a zida zowotchera pogwiritsa ntchito hole reflow
1) Pakuti PCBs ndi miyeso sanali kufala mbali yaikulu kuposa 300mm, zolemera zigawo zikuluzikulu sayenera kuikidwa pakati pa PCB mmene ndingathere kuchepetsa chikoka cha kulemera kwa pulagi-mu chipangizo pa mapindikidwe a PCB pa ndondomeko ya soldering, ndi zotsatira za ndondomeko ya pulagi pa bolodi.Mphamvu ya chipangizo choyikidwa.
2) Pofuna kuthandizira kuyika, chipangizocho chikulimbikitsidwa kuti chikonzedwe pafupi ndi mbali ya ntchito yoyikapo.
3) Utali wautali wa zida zazitali (monga zokumbukira zokumbukira, ndi zina) zimalimbikitsidwa kuti zigwirizane ndi njira yotumizira.
4) Mtunda pakati pa m'mphepete mwa dzenje la reflow soldering pad ndi QFP, SOP, cholumikizira ndi ma BGA onse okhala ndi phula ≤ 0.65mm ndi wamkulu kuposa 20mm.Mtunda wochokera ku zida zina za SMT ndi> 2mm.
5) Mtunda wapakati pa thupi la chipangizo chopangira nsonga-bowo ndi wopitilira 10mm.
6) Mtunda pakati pa pad m'mphepete mwa bowo reflow soldering chipangizo ndi mbali yopatsira ndi ≥10mm;mtunda kuchokera kumbali yosatumiza ndi ≥5mm.