Iwe unotoziva kuti zvese zvigadzirwa zvemagetsi zvinosanganisira mabhodhi edunhu. PCBS, kana mabhodhi edunhu akadhindwa, chikamu chakakosha chemagetsi emazuva ano. Bhodhi rakasvibirira rine mitsetse yakaoma uye mapatani inonzi PCB. Mumidziyo yemagetsi, mamark paPCB anovimbisa kuti zvese zvikamu zvinoshanda pamwechete zvakanaka. Kugadzirwa kwePCB kunosanganisira akawanda zvikamu uye matanho. Danho rekupedzisira rekugadzira rakadhindwa redunhu bhodhi (PCB) nderekuwedzera chidzitiro chakadhindwa pachikamu chepamusoro.
Kudhinda sikirini muitiro wekuisa zvironda zveingi kubhodhi redunhu kuona zvikamu zvaro, zviratidzo zveyambiro, bvunzo mapoinzi, mamakisi, ma logo mamakisi, nezvimwe. Kazhinji, chikamu chikamu ndicho chidzitiro chakadhindwa chemugadziri. Iyo nguva nenguva inooneka mumatanho ekushivirira, asi mutengo wekuenda ikoko wakakwira. Kudhinda kwePCB skrini kunobatsira vagadziri uye vagadziri nekukurumidza kuona zvikamu zvezvikamu. Kudhinda kwePCB skrini kunovimbisa kuti zvikamu zvinogona kuunganidzwa zvakare. Kudhinda sikirini kunopa mainjiniya kana nyanzvi mirairo yekuti zvikamu zvinofanirwa kuiswa papi uye sei paPCB.
Chii chinonzi PCB skrini yekudhinda?
Fungidzira uri kushanda paDIY purojekiti yekuvaka futuristic smartwatch kubva kutanga. PCB yako yakafanana nepurani yeiyi yepamusoro-tech inopfekwa, uye kudhinda skrini ndiyo nzira yako yekuwedzera intuitive mamaki uye mabhii kuti akutungamirire iwe uye chero munhu ari kuita musangano.
Kudhinda skrini paPCB ira reinki rakadhindwa pamusoro pebhodhi redunhu. Iyo inowanzo gadzirwa nepolymer kana ceramic zvinhu uye inoshandiswa kuburikidza nekudhinda skrini. Iyo inki inoshandiswa kuburikidza ne mesh skrini, iyo inoshanda se template yeinodiwa pateni. Iyo skrini inoiswa paPCB, uye ingi inomanikidzwa kuburikidza nechidzitiro uye pabhodhi. Iwo akajairwa chidzitiro mavara anoshandiswa nevagadziri ndeedema, yero uye chena. Paunenge uchishandisa PCB software, mafonti anowanzo shandiswa anogona kushandiswa mukugadzirwa kweiyo skrini yekudhinda layer.
Inowanzo shandiswa kumusoro uye pasi pezvikamu zvebhodhi redunhu. Uchishandisa screen printing, pamusoro pePCB board inogona kudhindwa nemavara, mavara uye zviratidzo. Zvikamu, nzvimbo yavo, mazita echikamu, nhamba dzezvikamu, marogo emhando, uye rumwe ruzivo zvinoratidzwa zvinoonekwa.
Kunyangwe iyo skrini yekudhinda dhizaini isina chekuita nekushanda kwemagetsi kwebhodhi, zvakakosha kune maitiro ekuvaka, kuyedza, uye kushandisa bhodhi. Inobatsira kutsvaga zvinhu uye kuzviisa munzvimbo dzakafanira kuitira kuti zvinhu zvose zvirongedzwe uye nenzira kwayo. Inobatsira zvikuru kumusangano wegungano nokuti inopa zviratidzo zvinoonekwa zviri nyore kunzwisisa kune technicians uye assemblers. Zvino zvawava kuziva izvo zvekutanga zvekudhinda skrini pamabhodhi edunhu akadhindwa, ngatitarisei mashandisiro ayo akawanda.
Ndeupi ruzivo rwePCB skrini yekudhinda?
Sezvambotaurwa, kudhinda skrini paPCB kunogona kunge kusisina chekuita nebasa rePCB; Zvisinei, kukosha kwayo kuri mumashoko ainopa. Semuenzaniso, zvichabatsira chero munhu:
Yambiro zviratidzo:Ziva zviratidzo zveyambiro zvinoratidzira zvinodziya zvakanyanya izvo zvinoda kutariswa nemushandisi uye kutarisirwa panguva yekushanda.
Polarity:Nzwisisa chikamu polarity kuti uise zvakanaka chikamu. Pini mamakisi anopa ruzivo rwekutungamira kuti ave nechokwadi chekusangana kwakaringana.
Test point:Position test point zviratidzo pachiratidziro kubatsira dhizaini mainjiniya muPCB yekuyedza uye kutumwa.
Reference indicator: Zvikamu zvinoonekwa nechiratidzo chechiratidzo, chiziviso chakasiyana chenzvimbo yega yega yegungano paPCB.
Numeri: Tsvaga yakasarudzika nhamba paPCB skrini inodhinda, ichiratidza chiratidzo chemugadziri, nhamba yevhezheni, nezvimwe.
Zviratidzo zvezvikamu: Kune dzakakosha zvikamu zvakaita se diode uye optocouplers, iyo chikamu chechiratidzo chakadhindwa pachiratidziro chakadhindwa chinovimbisa kurongeka kwakaringana panguva yekuisa.
Chinja Settings:Iyo default switch Settings inotsanangurwa paPCB skrini, inosimudzira usability yebhodhi.
Dense components:PIN iri pascreen kudhinda inofambisa kuyedzwa uye kugadzirisa kwe compact component mapakeji akadai sebhora grid arrays (BGA).
Kugadzirisa uye kugadzirisa:Silkscreen yekumaka inogona kuona zviri nyore uye kutsvaga zvinhu zvega, ichimhanyisa maitiro ekugadzirisa.
Manufacturing documentation:Silk screen yekumaka inopa inodiwa yekugadzira uye gungano zvinyorwa. Izvi zvinosanganisira zviziviso zvekodzero, marogo ekambani, mazuva ekugadzira, uye mamwe akakosha ehutongi hwemhando uye ruzivo rwekuteedzera.
Brand: Aya mamakisi anobatsira mukunaka nemhando yePCB. Kubatanidza ma brand zvinhu, marogo, uye mavara akasarudzwa anosimudzira kukwezva kwese kwekuona uye hunyanzvi.
Ndeupi hukobvu hwakakwana hwekudhinda skrini paPCB?
Ukobvu hwechidzitiro paPCB hunokanganiswa nehukuru hwechidzitiro uye huwandu hweinki inoshandiswa. Kazhinji, kudhindwa kwescreen muPCBS kunowanikwa seyakakwenenzverwa, kazhinji nehupamhi husingasviki 0.1 mm. Izvi zvinobvumira kuti ingi ishandiswe nemazvo pasina kuchinja zvakanyanya kukora kwePCB.
Kudzika kwewaya mesh paPCB kunogona kusiyana zvichienderana nemhando dzakasiyana siyana, kusanganisira nzira dzekugadzira, zvakanangana zvinodiwa, uye yakamiswa zviyero mukati meindasitiri. Kazhinji, kudzika kwekudhindwa kwescreen paPCB kwakatetepa kana kuchienzaniswa nemamwe matinji mukati mePCB.
Mune zvimwe zviitiko, ukobvu hwechidzitiro chakadhindwa PCB layer inowanzoita 0.02 mm kusvika 0.1 mm (20 kusvika 100 microns). Izvi zvakakosha kufunga kuti zviyero izvi ndezvekufungidzira uye zvinogona kusiyana zvichibva pane zvakasiyana siyana.
Kunyangwe iyo skrini mune yakadhindwa yedunhu bhodhi yakatetepa, ichiri kupa yakawanda kuoneka uye elasticity yechiratidzo. Ukobvu hunotariswa zvakanyatsonaka kuti ive nechokwadi chekuti haukanganise basa rePCB, kukonzeresa kusarongeka kwechikamu, kana kukonzera matambudziko panguva yekugadzira.