Molemo ka ho fetisisa Theknoloji ke e mong oa molemo ka ho fetisisa bahlahisi ba pcb le bafepedi ba boto e hatisitsoeng ka China
Puo
Molemo ka ho fetisisa Theknoloji ke e mong oa molemo ka ho fetisisa bahlahisi ba pcb le bafepedi ba boto e hatisitsoeng ka China
Sebakeng se seholo sa boenjiniere le tlhahiso, ho na le lefats'e le patiloeng la masoba, le leng le le leng le na le sepheo le boemo ba lona bo ikhethang. Likoti tsena li bapala karolo ea bohlokoa ho tsamaisa mesebetsi e fapaneng ka har'a litsamaiso tsa mochini le tsa elektroniki. Ka blog ena, re tla kena leetong la ho hlahloba mefuta e fapaneng ea masoba ka boto ea potoloho e hatisitsoeng. Kahoo, tlama mabanta a pholoho 'me re ke re hlahlobeng lefatše le khahlang la likarolo tsena tsa bohlokoa tsa boenjiniere.
Mefuta e Tloaelehileng ea Likoti ho PCB
Ka mor'a ho hlahloba boto ea potoloho, motho o tla fumana letoto la likoti tse sebeletsang merero e itseng. Tsena li kenyelletsa Via holes, PTH, NPTH, Likoti tse foufetseng, likoti tse patiloeng, likoti tsa Counterbore, likoti tsa Countersunk, likoti tsa Sebaka, le likoti tsa Fiducial. Mofuta o mong le o mong oa lesoba o phethahatsa karolo le ts'ebetso e ikhethileng ka har'a PCB, ho etsa hore ho be bohlokoa ho tloaelana le litšobotsi tsa bona ho tsamaisa moralo o nepahetseng oa PCB.
1. Ka Likoti
Ka masoba ke masoba a manyane a kopanyang likarolo tse fapaneng tsa boto ea potoloho e hatisitsoeng (PCB). Li thusa ho phalla ka mokhoa o se nang moeli oa matšoao le matla pakeng tsa lihlopha, ho etsa hore ho be le moralo o motle oa potoloho le phetisetso. Vias e ka aroloa ka mefuta e 'meli: Plated Through-Holes (PTH) le Non-Plated Through-Holes (NPTH), e 'ngoe le e' ngoe e sebeletsa mesebetsi e fapaneng.
2. PTH (Plated through-Hole)
Plated Through-Holes (PTH) ke vias le thepa conductive barbotage ka hare marako. Li-PTH li theha likhokahano tsa motlakase lipakeng tsa likarolo tse fapaneng tsa PCB, tse lumellang ho feta ha matšoao le matla. Ba bapala karolo ea bohlokoa ho hokahaneng likarolo, ho tsamaisa phallo ea motlakase, le ho netefatsa ts'ebetso ea potoloho.
3. NPTH (Non-Plated through-Hole)
Non-Plated Through-Holes (NPTH) ha e na seaparo sa conductive maboteng a bona a ka hare, e leng se etsang hore e tšoanelehe bakeng sa merero ea mochine feela. Likoti tsena li sebelisoa bakeng sa ts'ehetso ea mochini, ho tsamaisana, kapa joalo ka litataiso tsa maemo, ntle le ho theha likhokahano tsa motlakase. Li-NPTH li fana ka botsitso le ho nepahala, ho netefatsa ho lumellana hantle ha likarolo ka har'a boto ea potoloho. Ntho e fapaneng haholo pakeng tsa PTH le NPTH ke foil ea koporo e tla kenngoa leboteng la lesoba ha NPTH e sa hloke ho etsa poleiti.
4. Likoti tse Foufetseng
Likoti tse foufetseng ke likoti tse phuntsoeng ka mokhoa o sa fellang tse phunyeletsang lehlakoreng le le leng feela la boto ea potoloho. Ba hiriloe haholo-holo ho hokahanya lera le ka ntle la boto le lera le ka hare, ho etsa hore karolo e be teng ka lehlakoreng le leng ha e ntse e patiloe ho e 'ngoe. Likoti tse foufetseng li fana ka mekhoa e mengata 'me li thusa ho eketsa sebaka ka meralo e rarahaneng ea boto ea potoloho.
5. Likoti tse Epetsoeng
Likoti tse patiloeng li koaletsoe ka ho feletseng ka har'a boto ea potoloho, li kopanya likarolo tse ka hare ntle le ho fetela ho lihlopha tse ka ntle. Likoti tsena li patiloe mahlakoreng ka bobeli a boto 'me li sebeletsa ho theha maqhama le litsela pakeng tsa lihlopha tse ka hare. Likoti tse patiloeng li lumella meralo ea boto ea potoloho e teteaneng, ho fokotsa ho rarahana ha litsela le ho ntlafatsa ts'ebetso eohle ea boto. Li fana ka tharollo e se nang moeli le e kopanetsoeng ntle le ho pepeseha ka holim'a metsi.
6. Counterbore Holes
Likoti tsa Counterbore ke likheo tsa cylindrical tse etselitsoeng ho amohela lihlooho tsa liboutu, linate kapa li-screw. Li fana ka sekoti se sephara se nang le sekoti se lumellang li-fasteners hore li lule li tsitsitse kapa tse ka tlas'a bokaholimo ba thepa. Mosebetsi oa mantlha oa likoti tsa counterbore ke ho ntlafatsa botle le ts'ebetso ea moralo ka ho fana ka chebahalo e boreleli le e ts'oanang. Likoti tsena hangata li fumanoa lits'ebetsong tsa mapolanka, tsa tšepe, le tsa boenjiniere moo ho batloang sebaka se patiloeng kapa se seholoanyane.
7. Countersunk Holes
Likoti tsa Countersunk ke liphaposi tse kholo tse etselitsoeng ho boloka lihlooho tse nang le li-angles tsa li-screw kapa li-fasteners. Li hiriloe ho etsa bonnete ba hore lihlooho tsa screw li robala kapa li le ka tlase ho bokaholimo ba thepa. Likoti tsa Countersunk li sebeletsa merero e metle le e sebetsang, li fana ka pheletso e boreleli le e se nang sekoli ha li ntse li fokotsa kotsi ea likhoka kapa li-protrusions. Ho feto-fetoha ha tsona ho etsa hore li tšoanelehe bakeng sa lits'ebetso tse fapaneng, ho tloha ho ho etsa thepa ea ka tlung ho isa ho boenjiniere ba lifofane.
8. Likoti tsa Sebaka
Location Holes, e tsejoang hape e le Reference Holes kapa Tooling Holes, e sebetsa e le lintlha tsa bohlokoa tsa ho hokahanya le ho beha likarolo, likarolo, kapa lisebelisoa nakong ea ts'ebetso ea tlhahiso kapa ea kopano. Likoti tsena li behiloe ka mokhoa o hlophisitsoeng moralong oa ho netefatsa tlhophiso e nepahetseng le e tsitsitseng, e nolofalletsang ho kopanya hantle le ho fokotsa liphoso.
9. Likoti tse Fiducial
Li-Fiducial Holes, tseo hape li bitsoang Fiducial Marks kapa Alignment Marks, ke masoba a nepahetseng kapa matšoao a behiloeng holim'a metsi kapa PCB (Printed Circuit Board). Likoti tsena li sebetsa e le lintlha tsa litšupiso tsa pono bakeng sa lits'ebetso tsa pono, lits'ebetso tse ikemetseng, kapa lik'hamera tsa pono tsa mochini.
Ha re phethela leeto la rona ho pholletsa le lefats'e le tsotehang la likoti tsa boenjiniere, re fumane kutloisiso e tebileng ea mesebetsi le maemo a likoti tsa counterbore, likoti tsa countersunk, ka likoti, PTH, NPTH, likoti tse foufetseng, le likoti tse patiloeng. Likoti tsena ke lintho tsa bohlokoa liindastering tse fapaneng, tse kenyang letsoho molemong oa botle, ts'ebetso le katleho ea meralo.
Ka mor'a ho tsebisa e 'ngoe le e' ngoe ea tsona, u ka be u fumane kutloisiso e tebileng ea mesebetsi ea bona, tšepo ea hore sena se tla u thusa ho etsa masoba a moralo morerong oa hau oa PCB !!
