Emva kwayo yonke imixholo yoyilo ye-PCB yenziwe, ihlala ihamba inyathelo eliphambili lenyathelo lokugqibela - ibeka ubhedu.
Ke kutheni lenza ukuba ibeka ubhedu ekugqibeleni? Awungekhe uyile?
I-PCB, indima yobheduzo yobhedu ininzi kakhulu, njengokunciphisa ukuncipha komhlaba kunye nokuphucula ubuchule bokuthathwa kwentengiselwano; Iqhagamshelwe ngocingo olumhlaba, ukunciphisa indawo yeloop; Kwaye nceda ngokupholisa, njalo njalo.
1, Ubhedu lunokunciphisa ukuphakanyiswa komhlaba, kunye nokubonelela ngokhuseleko lokukhusela kunye nokucinezelwa kwengxolo.
Kukho i-pumple ye-peak ye-pumpset kwisekethe yedijithali, ngoko ke iyimfuneko ukunciphisa ukugxininiswa komhlaba. Ubhedu lubekwe yindlela eqhelekileyo yokunciphisa ukunyanzeliswa komhlaba.
Ubhedu lunokunciphisa ukuxhathisa ucingo lwe-wire ngokunyusa indawo enomgangatho wecandelo le-wire. Okanye unciphise ubude be-wire yocingo, nciphisa ukuqhutywa kwe-wire yocingo, kwaye ke kunciphise ukunyathela kocingo lwe-wire; Unokulawula nokuxhotyiswa kwe-wire yocingo, ukuze ixabiso le-cire yocingo linyuke ngokufanelekileyo, ukuze liphucule ukuqhubela phambili kombane wecingo lomoya kwaye kunciphise ingcibi ye-wire yocingo.
Indawo enkulu yomhlaba okanye i-Copper yobhedu inokudlala indima yokukhusela, incedisa ekunciphiseni ukuphazamiseka kwe-electromagnetic, phucula ubuchule bokuthathwa kweSiphalukana, kwaye ufezekise iimfuno ze-EMC.
Ukongeza, kwimijikelezi-mali e-frequency, ipeni yobhedu ibonelela ngendlela epheleleyo yemiqondiso yedijithali, ukunciphisa i-wirint yenethiwekhi ye-DC, ngaloo ndlela kuphucule ukuhanjiswa kwesibonakaliso.
2, Ukubeka ubhedu kungaphucula ubungakanani bokunikezela ngobushushu be-PCB
Ukongeza ekunciphiseni ukunyathela komhlaba kwi-PCB uyilo, ubhedu lungasetyenziselwa ukwahlula-shintshayo.
Njengoko sonke sazi, isinyithi kulula ukuqhuba umbane kunye nezinto zokuqulunqwa kwe-SURB, ukuba i-PCB ifakwe ngobhedu, indawo engekhoyo ineempawu zensimbi, ke kulula ukubuqhawula ubushushu bebhodi ye-PCB xa iyonke.
Ukubeka ubhedu kuyanceda ukusasaza ubushushu ngokulinganayo, ukuthintela ukudalwa kweendawo ezishushu zasekhaya. Ngokulinganayo ngokulinganayo kwiBhodi ye-PCB yonke, uxinzelelo lwasekhaya lunokuncitshiswa, iqondo lobushushu le-graenter yoMthombo wobushushu linokuncitshiswa, kwaye ukubekwa kwemveliso yobushushu kungaphuculwa.
Ke ngoko, kuYilo lwe-PCB, ukubeka ubhedu kunokusetyenziselwa ukwahlula-shishina ngezi ndlela zilandelayo:
Yila iindawo zokubonisa ubushushu: Ngokomthombo wobushushu osasazwe kwiBhodi yePCB, yoyile imithombo yobuqhetseba, kwaye ubeka imikhombe ye-Wibler, kwaye ulale i-foil eyaneleyo kwezi ndawo ukonyusa indawo yokufowuna yobushushu kunye nendlela yokuqhuma ngenkcitho.
Yongeza ubukhulu be-mopper foil: Ukonyusa ubukhulu be-foil yobhedu kwindawo yokuhlaselwa kobushushu kunokunyusa indlela yokuhamba ngenkcitho ye-thermal kwaye iphucule ukusebenza ngempumelelo yobushushu.
Yila ukubekwa kobushushu kwimingxunya: Yiloyisela ubushushu obushushu kwimingxunya yokulimaza ubushushu, kunye nokudlulisela ubushushu kwiBhodi ye-PCB ukuya kunyusa ukusebenza ngempumelelo yobushushu.
Yongeza i-SUFF SACK: Yongeza i-SUFF SInk kwindawo yokuSebenzisa ubushushu, ukudluliselwa ubushushu kwi-SUFFACHE, kwaye emva koko ibubushushu kwi-FARDE yendalo yokuphucula ukusebenza kwendalo.
3, Ukubeka ubhedu kunokunciphisa ukungcungcutheka kunye nokuphucula umgangatho wokuphucula i-PCB
Ukupowila kobhedu kunokunceda ukuqinisekisa ukufana kwe-elektroli, ukunciphisa ukungcungcutheka kweplate ngexesha lenkqubo yesalathisi, ngakumbi i-PCB ephindwe kabini okanye iphucule umgangatho wokwenziwa kwemveliso yePCB.
Ukuba i-foil yobhedu kwezinye iindawo ininzi kakhulu, kwaye ukusasazwa kwezinye iindawo kuncinanana, kuya kukhokelela ekusasazeni yonke iBhodi yonke, kwaye ubhedu lunokunciphisa ngokufanelekileyo lo msantsa.
4, Ukufezekisa iimfuno zokufakelwa kwezixhobo ezizodwa.
Kwezinye izixhobo ezizodwa, ezinjengeenkonzo ezifuna ukuphakanyiswa okanye iimfuno ezikhethekileyo zokufaka, ukulala kobhedu kunokubonelela ngamanqaku onxibelelwano kunye nezixhasi ezisisigxina, ukwandisa uzinzo kunye nokuthembeka kwesixhobo.
Ke ngoko, ngokusekelwe kwezi zibonelelo zingentla, kwiimeko ezininzi, abaqulunqi be-elektroniki baya kubeka ubhedu kwiBhodi yePCB.
Nangona kunjalo, ukubeka ubhedu asiyonxalenye eyimfuneko yoyilo lwe-PCB.
Ngamanye amaxesha, ukubeka ubhedu kungafanelekanga ukuba kufanelekile okanye kubekho. Nazi ezinye iimeko apho ubhedu akufuneki lusasazeke:
A), umgca ophakathi ophezulu:
Kwimigca ephezulu yokubonisa umqondiso, ukubeka ubhedu kungazisa amaxhosi awongezelelekileyo kunye nezithintelo, kuchaphazela ukusebenza kokudluliselwa komqondiso. Kwisekethe-free-frect torthency, ihlala iyimfuneko ukulawula indlela ye-wiring ye-wire kwaye inciphise indlela yokubuya ye-wire, kunokuba ibeka ngaphezulu kobhedu.
Umzekelo, ukubeka ubhedu kunokuchaphazela inxenye yophawu lwe-antenna. Ukubeka ubhedu kwindawo ejikeleze i-eriyali kulula ukubangela umqondiso oqokelelwe ngumqondiso obuthathaka ukuze ufumane uphazamiseko. Umqondiso we-antenna ungqongqo kakhulu kumgangatho weparamitha wesekethe, kwaye ukubeka impatho yokubeka ubhedu kuya kuchaphazela intsebenzo yesekethe ye-Amplifier. Ke indawo ejikeleze icandelo le-Antentena ihlala ingagqunywe ngobhedu.
B), IBhodi yeSekethe exineneyo
Kwiibhodi zesekethe eziphezulu zokuxinana, ukubekwa kobhedu okugqithisileyo kunokukhokelela kwimijikelezo emifutshane okanye iingxaki zomhlaba phakathi kwemigca, echaphazela ukusebenza kwesiphaluka. Xa uyila iibhodi zesekethe eziphezulu, kufuneka uyile ngononophelo ulwakhiwo lobhedu ukuze kuqinisekiswe ukuba kukho indawo eyaneleyo kunye nokufakelwa phakathi kwemigca.
C), ukwahlula-tshisa ubushushu ngokukhawuleza, ubunzima:
Ukuba iPIN yecandelo ligqunywe ngokupheleleyo ngobhedu, linokubangela ukungavisisani kobushushu, nto leyo eyenza ukuba kube nzima ukususa i-welding kunye nokulungiswa. Siyazi ukuba ukuqhubela phambili kobhedu kuphezulu kakhulu, ke ukuba ilokhwe yembewu, i-welley ye-welles, umphezulu wobhedu kuya kuqhuba i-ilding, ngenxa yoko kuyilo lwe-ilding, ngenxa yoko lento yokusebenzisa i-DID "ukunciphisa i-DITECIPY.
D), iimfuno zendalo esingqongileyo:
Kwimimandla ethile ekhethekileyo, enjengobushushu obuphezulu, umswakama ophezulu, indawo yokugcina ingca, i-foil yobhedu, i-foil ye-cowper inokuthi yonakele okanye ichaphazele i-PCB yeBhodi yePCB. Kule meko, kuyimfuneko ukukhetha izinto ezifanelekileyo kunye nonyango ngokweemfuno ezithile zendalo esingqongileyo, endaweni yokubeka ubhedu.
E), inqanaba elikhethekileyo leBhodi:
Kwibhodi yesekethe eguquguqukayo, ibhodi edibeneyo necacileyo necacileyo yeBhodi yeBhodi, iyimfuneko ukubeka uyilo lobhedu ngokweemfuno eziguquguqukayo, ukunqanda ingxaki yenguqulo okanye edibeneyo edityanisiweyo ebangelwa kukulala kakhulu kobhedu.
Ukuphelisa, uyilo lwe-PCB, kunyanzelekile ukuba ukhethe phakathi kobhedu kunye nokungabikho kobhedu ngokweemfuno zesekethe ezithile, iimfuno zendalo esingqongileyo kunye neemeko ezizodwa.