Common pini mhando mukati PCB patani

MuPCB dhizaini inoda kuwirirana neyekunze masisitimu, iwe unofanirwa kufunga nezve mapini uye zvigadziko. PCB dhizaini zvakananga kana zvisina kunanga inosanganisira akasiyana mapini.

Mushure mekutarisa akawanda makatalogi evagadziri, iwe uchaona kuti mhando dzepini dzinowanzo kupatsanurwa muzvikamu zvinotevera:

1. Single / kaviri mutsara tsono

2. Turret yakapinza pini

3. Soldering PCB pini

4. Mapeji ekupedzisira mapini

5. Soldering cup terminal pini

6. Slotted terminal pini

7. Terminal pini

Mazhinji emapini aya akabatanidzwa nezvigadziko zvawo uye anogadzirwa nezvinhu zvakasiyana. Zvinhu zvakajairika zvinoshandiswa kugadzira mapini aya beryllium copper, beryllium nickel, alloys endarira, phosphor bronze, uye copper tellurium. Mapini akaputirwa nezvinhu zvakasiyana zvekurapa pamusoro, zvakaita semhangura, lead, tini, sirivha, goridhe uye nickel.

Mamwe mapini anotengeswa kana kucheneswa kumawaya, asi mapini (akadai semapulagi, solder mounts, press fits, uye turret samples) akaiswa paPCB.

Nzira yekusarudza iyo chaiyo pini mhando yePCB dhizaini?

Kusarudza mapini ePCB kunoda kufunga kushoma pane zvimwe zvinhu zvemagetsi. Kutariswa kwemakanika kana magetsi ruzivo kunogona kutungamirira kumatambudziko ekushanda mune prototype kana kugadzira PCBs.

Pakusarudza PCB pini, unofanira kufunga zvinotevera zvinhu.

1. Tora

Zviripachena, iwe unofanirwa kuona iyo PCB pini mhando inokodzera dhizaini yako. Kana iwe uchitsvaga mapini ekupedzisira ebhodhi-kune-bhodhi yekubatanidza, misoro ndiyo sarudzo chaiyo. Misoro yepini inowanzoiswa kuburikidza nemakomba, asi kune zvakare pamusoro-yakaiswa mavhezheni, ayo akakodzera kwazvo kuungana otomatiki.

Mumakore achangopfuura, solderless tekinoroji yakapa dzimwe sarudzo dzePCB pini. Press fit pini dzakanakira kubvisa welding. Iwo akagadzirwa kuti akwane padded PCB maburi uye anopa yakachengeteka mechanika uye magetsi kuenderera mberi. Mutsara mumwechete wepini misoro inoshandiswa kubhodhi-ku-bhodhi uye waya-ku-bhodhi.

2. Pitch

Mamwe mapini ePCB anopa hukuru hwakasiyana hwenamo. Semuenzaniso, misoro yepini yemitsara miviri inowanzoita 2.54mm, 2mm uye 1.27mm. Mukuwedzera kune saizi yepitch, saizi uye yakayerwa ikozvino yepini yega yega zvakasiyana.

3

Zvishandiso zvinoshandiswa kuputira mapini zvinogona kukonzera mutsauko mumutengo uye conductivity. Mapini akaputirwa negoridhe anowanzo kudhura kupfuura mapini akapfekwa, asi anobatika.

PCB dhizaini nemhando dzakasiyana dzepini

Kufanana nechero imwe PCB gungano, kune mamwe matipi anogona kukuchengetedza kubva mukunetseka kana uchishandisa terminal pini uye dhizaini yekubatanidza. Imwe yemitemo inonyanya kukosha ndeyekugadzirisa ukuru hwegomba rekuzadza zvakanaka. Ndapota gara uchitarisa kune chaiyo saizi yetsoka inokurudzirwa nemugadziri. Kuzadza maburi madiki kana kuti akakurisa kunogona kukonzera matambudziko ekuungana.

Mamiriro emagetsi emapini ekupedzisira akakoshawo, kunyanya kana paine hombe inoyerera nepakati payo. Iwe unofanirwa kugovera nhamba yakakwana yepini kuti uve nechokwadi cheinodiwa ikozvino throughput pasina kukonzera kupisa matambudziko.

Mechanical clearance uye kuiswa kwakakosha kune PCB musoro mapini epakeji.

Kushandisa plug-pini yekubatanidza bhodhi-kune-bhodhi kunogona kuve kwakaoma. Pamusoro pekurongeka kwakaringana, inofanirwawo kuve nechokwadi chekuti hapana nzvimbo dzepamusoro senge electrolytic mavhavha anovhara mukaha pakati pePCB mbiri. Zvimwe chetezvo kune mapini epasuru anowedzera kupfuura kumucheto kwePCB.

Kana iwe ukashandisa kuburikidza-gomba kana pamusoro pegomo mapini, iwe unofanirwa kuve nechokwadi chekuti zororo rekupisa rinoiswa kune yepasi polygon yakabatana nepini iyoyo. Izvi zvinovimbisa kuti kupisa kunoshandiswa panguva yekugadzira solder hakuzokurumidzi kupera uye kunozokanganisa majoini e solder.