Lefatšeng la lisebelisoa tsa elektronike le li-circuits, liboto tsa potoloho tse hatisitsoeng (PCBs) li bapala karolo ea bohlokoa ho hokahanya le ho matlafatsa likarolo tse fapaneng. Ho kopanya liboto tse peli tsa PCB ke mokhoa o tloaelehileng, haholo-holo ha ho etsoa litsamaiso tse rarahaneng kapa ho atolosa tshebetso. Ka blog ena, re tla u tataisa mabapi le mokhoa oa ho hokahanya liboto tse peli tsa PCB ka mokhoa o sa reroang.
Mohato oa 1: Tseba litlhoko tsa khokahano:
Pele o ikakhela ka setotsoana ts'ebetsong, ke habohlokoa ho fumana litlhoko tse khethehileng tsa ho hokahanya mapolanka a mabeli a PCB. E ka sebelisoa ho holisa ts'ebetso, ho theha li-circuits tse kholo, kapa ho tsamaisa puisano lipakeng tsa liboto tse peli. Kutloisiso ena e tla re tataisa ha re khetha mokhoa o nepahetseng oa ho hokahanya.
Mohato oa 2: Khetha mokhoa oa ho hokahanya:
Ho na le mekhoa e 'maloa ea ho hokahanya mapolanka a mabeli a PCB. Ha re hlahlobeng likhetho tse ling tse tloaelehileng:
1. Welding:
Soldering ke mokhoa o sebelisoang haholo ho kopanya mapolanka a PCB. E kenyelletsa ho fana ka khokahanyo ea motlakase ka ho qhibiliha tšepe ea tšepe (solder) ho theha maqhama a matla pakeng tsa mapolanka a koporo a mapolanka a mabeli. Etsa bonnete ba hore u e hokahanya hantle 'me u sebelise tšepe ea soldering ea mocheso o nepahetseng bakeng sa motsoako o ka tšeptjoang oa solder.
2. Sehokelo:
Ho sebelisa likhokahano ho fana ka mokhoa o bonolo haholoanyane oa ho hokahanya le ho hakolla liboto tsa PCB. Ho na le mefuta e fapaneng ea likhokahanyo 'marakeng joalo ka lihlooho, li-sockets le likhoele tsa ribone. Khetha mofuta o nepahetseng oa sehokelo ho latela litlhoko tsa hau tse ikhethileng.
3. Wiring:
Bakeng sa likhokahano tse bonolo le tsa nakoana, lithapo li ka sebelisoa ho koala likhokahano tse hlokahalang lipakeng tsa liboto tsa PCB. Hlōla likhoele tsa terata, u li tšele ka solder, 'me u li kopanye le liphaephe tsa tsona tse fapaneng libotong tse peli. Mokhoa ona o na le thuso nakong ea prototyping kapa debugging phase.
Mohato oa 3: Lokisa boto ea PCB:
Pele o tsoela pele ka likhokahano, etsa bonnete ba hore liboto tsa PCB ka bobeli li loketse ho kopanngoa:
1. Hloekisa bokaholimo: Sebelisa sesepa kapa joala ba isopropyl ho tlosa litšila leha e le life, masala a flux kapa oxide ho tloha lipacheng tsa koporo.
2. Ntlafatsa sebopeho sa likarolo: Haeba u batla ho hokahanya mapolanka a PCB a kopaneng, ka kopo etsa bonnete ba hore likarolo tsa mapolanka a mabeli li ke ke tsa kena-kenana le tse ling. Fetola moralo ha ho hlokahala.
Mohato oa 4: Sebelisa mokhoa oa ho hokahanya:
Kaha joale re na le mokhoa oa ho hokahanya le boto ea PCB e se e loketse, a re qaleng ho li hokahanya:
1. Mokhoa oa ho cheselletsa:
a. Lokahanya boto ea PCB hantle, ho etsa bonnete ba hore lipampiri tsa koporo tse tsamaellanang li shebane.
b. Sebelisa palo e nyane ea phallo ho pad ho tlosa li-oxide le tšilafalo.
c. Chesa tšepe ea tšepe 'me u e ame ho motsoako oa solder e le hore solder e qhibilihisitsoeng e phalle ka ho lekana pakeng tsa liphahlo. Hlokomela hore u se ke ua chesa haholo likarolo tsa PCB.
2. Mokhoa oa ho hokahanya:
a. Etsa qeto ea likhokahano tse loketseng bakeng sa boto ea hau 'me u li phahamise ho latela li-PCB tse peli.
b. Etsa bonnete ba ho tsamaisana hantle le ho sutumelletsa likhokahano hammoho ka thata ho fihlela li kopane ka mokhoa o sireletsehileng.
3. Mokhoa oa ho kenya mohala:
a. Etsa qeto ea likhokahano tse hlokahalang pakeng tsa mapolanka a mabeli a PCB.
b. Khaola bolelele bo loketseng ba terata 'me u hlobole lipheletsong.
c. Ho kenya lipheletsong tsa lithapo ka solder ho tla ntlafatsa ts'epahalo ea khokahano.
d. Solder ea terata tinned fellang kateng le mekoti e tsamaisanang ka bobeli PCBs, ho etsa bonnete ba ho lolamiso e nepahetseng.
Ho hokahanya liboto tse peli tsa PCB ke tsebo ea bohlokoa bakeng sa batho ba ratang ho itlosa bolutu ka elektronike le litsebi. Ka ho latela tataiso ea mohato ka mohato e fanoeng ka holimo le ho tseba litlhoko tse khethehileng, u ka atleha ho theha kamano e tšepahalang pakeng tsa mapolanka a PCB. Hopola feela ho ba hlokolosi nakong ea ts'ebetso ena e le hore u se ke ua senya boto kapa likaroloana. Thabela ho hokela!
Nako ea poso: Aug-30-2023