Design maloboti ndi okhwima PCB bolodi osaganizira zoteteza PCB ku kugwedezeka kwamphamvu komwe kumachitika chifukwa chamakina. Kulephera kumeneku kumatha kubweretsa mavuto akulu monga ma insulators osweka ndi ma capacitors, zotchinga gawo, ma waya a PCB discontinuities, ming’alu ya malo osungunuka, masanjidwe ama board a PCB, ma circuits amafupipafupi amagetsi ndikudula kwa mbiya. Pofuna kuthana ndi zolephera izi, pamafunika ma board okhazikika osinthika okhwima.

Kodi kukhwimitsa kotani kwa PCB?

Bokosi losindikizidwa momwe ma mbale osunthika komanso osinthika amaphatikizika palimodzi kuti atenthe mbali zamagawo olimba ndikupindika mbali m’malo molumikizana ndi zingwe. Gawo lolimba limatha kukhala ngati PCB yolimba, pomwe zinthuzo zimatha kuphatikizidwa mbali zonse ziwiri za bolodi ndipo magawo angapo olumikizana amatha kupangidwa, pomwe gawo losinthasintha limatha kulumikizidwa m’magawo angapo, koma zida zake zimatha kutenthedwa chifukwa gawo losinthasintha limagwiritsidwa ntchito kulumikizana pakati pamagawo okhwima okhawo.

Kuchotsa zolumikizira pamapangidwe kumabweretsa zinthu zotsatirazi kudera: Kutumiza kwa zizindikilo kuchokera mbali imodzi kupita kwina popanda kutayika kapena jitter (phokoso) Chotsani zovuta zolumikizana monga kulumikizana kozizira.Tulutsani malo ndikuchepetsa thupi. Zimapangitsa kuti dera liziwoneka ngati logwedera ndipo limatha kuyikidwa muntchito ndi magawo osuntha.

Design okhwima kusintha PCB:

Mapulogalamu osiyanasiyana amapezeka kuti apange PCBS yolimba, koma Altium imapereka mawonekedwe abwino kwambiri a 3D a PCBS osasunthika ndipo amalimbikitsidwa kwambiri. Mukamapanga magawo okhwima osinthasintha, ndikofunikira kwambiri kuti musankhe m’lifupi mwake mkuwa malinga ndi momwe mukugwiritsira ntchito.

Izi zikuwonetsa kuti kuchuluka komwe kulipo pakadali pano kuyenera kugwiritsidwa ntchito m’malo olimba komanso opindika omwe ali ndizowonjezera zosiyana chifukwa chakulimba, dera komanso kuloleza kwa zinthuzo. Akatswiri a Rayming PCB ndi Assembly amapezeka nthawi zonse kuti akafunse pazolumikizana zolondola ndi zinthu zabwino zomwe mungachite pafupipafupi.

Kayeseleledwe PCB kusintha:

Zitsanzo za chidole cha papepala ndizofunikira kwambiri pakupanga masekeli osinthika. Mchitidwe wosavutawu ukhoza kuthandiza opanga kuti ateteze zolakwika zambiri powonetsa zovuta zokhudzana ndi kupindika msanga, ndipo zitha kusunga nthawi ndi ndalama. Izi zimathandizira wopanga kulosera utali wopinda ndikusankha njira yoyenera kutsata mkuwa kuti iteteze kung’ambika kapena kusiya.

Pangani tsatanetsatane wazitsulo ndi kukondera:

Kusunga mkuwa wowonjezera pamapangidwe kumawonjezera kukhazikika kwa dera losinthika. Kwa mapangidwe amtundu umodzi wosanjikiza komanso mbali ziwiri, kukondera mozungulira komwe kuli mkuwa ndi njira yabwino. Kuwonjezera kapena kuchotsa mkuwa wowonjezera kumadalira kokha pakuwugwiritsa ntchito, koma ngati wopanga ali ndi mkuwa wowonjezera wokhala ndi tsankho, zotsalira zomwe zimakondera ziyenera kugwiritsidwa ntchito pakukhazikika kwamakina. Kuphatikiza apo, kutero kumatha kuchepetsa kuchuluka kwa mkuwa, womwe umakhala wochezeka mwachilengedwe pogwiritsa ntchito mankhwala.

Kodi ma PCB okhwima ndi otani komanso momwe angapangire ma PCB okhwima? Huaqiang PCB

Kumanga kapangidwe kosiyanasiyana kosanjikiza:

Kutalika kwakapangidwe kogwiritsa ntchito nthawi zambiri kumagwiritsidwa ntchito kupangira masekeli osanjikiza angapo. Mwa njirayi, wopanga amawonjezera pang’ono kutalika kwa gawo lililonse lomwe limasinthasintha, lomwe limakhala 1.5 makulidwe a gawo lililonse. Izi zimalepheretsa kupindika pakati pamiyeso yokhotakhota mumayendedwe angapo osanjikiza osanjikiza ena. Mwa njira yosavutayi, zovuta zamagetsi ndi i-beam zomwe zimakhazikitsidwa pazitsulo zakunja zitha kuthetsedwa, zomwe zingakhale vuto lalikulu pakamagwiritsa ntchito mwamphamvu.

Kodi ma PCB okhwima ndi otani komanso momwe angapangire ma PCB okhwima? Huaqiang PCB

Tsatani zolumikizira pakona:

Zina mwa zovuta zomwe zimakhudzana ndi kuyendetsa waya m’maseketi osinthika ndikuphatikizira kuchuluka kwa owoloka kuti zocheperako zizichepetsedwa kuti zisunge ndalama, ndipo chachiwiri ndikubowola ngodya pamapangidwe osinthasintha. Zoyeserera ziyenera kukhotakhota ndikupindidwa mozungulira ngodya, popeza ngodya zakuthwa zimatha kutchera yankho pakudya ndipo zimatha kutulutsa zovuta ndipo zimakhala zovuta kuyeretsa mukalandira mankhwala. Pakakhala zotsalira zamkuwa mbali zonse za dera losinthasintha, wopanga amayenera kupanga danga la 2-2.5 kupingasa mzere kuti apewe kufupikira kwamagetsi kulikonse komanso koyenera koyenera. Kuganizira malamulowa kumatha kupititsa patsogolo kufalikira kwa siginecha ndikuchepetsa ziwonetsero pakusinthana.

Kodi ma PCB okhwima ndi otani komanso momwe angapangire ma PCB okhwima? Huaqiang PCB

Okhwima okhwima gawo losintha:

Mtunda wocheperako kuchokera kumalo osinthasintha osinthasintha mpaka kumapeto kwa dzenje lololedwa ndikutambasulidwa kudzera mu dzenje sikhala ochepera mainchesi 0.0748. Mukamapanga mtunda pakati pa osakutidwa kudzera pabowo komanso mkati ndi kunja kwa m’mbali mwake, zotsalira zotsalira siziyenera kukhala zosakwana mainchesi 0.0197.

Okhwima – mawonekedwe osinthasintha osanja kudzera pabowo:

Mtunda wocheperako pakati pamtanda wolimba ndi wokutidwa kudzera m’mabowo olumikizirana osalimba ndi wopitilira 0.125 mkati. Kuphwanya lamuloli kumatha kukhudza kudalirika kwa malowo kudzera pabowo.