Kunyatsodzivirira nzira
Mukuvandudzwa kwechigadzirwa, kubva pamaonero emutengo, kufambira mberi, kunaka uye kuita, zvinowanzo nyatso kutarisisa nekuita iyo chaiyo dhizaini mukutenderera kweprojekiti nekukurumidza. Iyo inoshanda mhinduro kazhinji haina kunaka maererano nezvimwe zvikamu uye zvimwe "nekukurumidza" zvirongwa zvekugadzirisa zvinoitwa munguva inotevera yeprojekiti. Hunhu hwayo uye kuvimbika kwakashata, uye mutengo wekushandisa pakutanga mukuita wakakwira. Kushaikwa kwekufanoona muchikamu chekutanga chekugadzira purojekiti kunowanzo tungamira mukunonoka kuendesa uye kunogona kukonzera vatengi kusagutsikana nechigadzirwa. Dambudziko iri rinoshanda kune chero dhizaini, ingave yekufananidza, nhamba, magetsi kana mechanical.
Kuenzaniswa nemamwe matunhu ekuvharira imwe IC nePCB, mutengo wekuvharira PCB yese ingangoita ka10, uye mutengo wekuvharira chigadzirwa chose ka100. Kana iwe uchida kuvhara kamuri rose kana chivakwa, mutengo wacho ndeyechokwadi chimiro chenyeredzi.
Mukuvandudzwa kwechigadzirwa, kubva pamaonero emutengo, kufambira mberi, kunaka uye kuita, zvinowanzo nyatso kutarisisa nekuita iyo chaiyo dhizaini mukutenderera kweprojekiti nekukurumidza. Iyo inoshanda mhinduro kazhinji haina kunaka maererano nezvimwe zvikamu uye zvimwe "nekukurumidza" zvirongwa zvekugadzirisa zvinoitwa munguva inotevera yeprojekiti. Hunhu hwayo uye kuvimbika kwakashata, uye mutengo wekushandisa pakutanga mukuita wakakwira. Kushaikwa kwekufanoona muchikamu chekutanga chekugadzira purojekiti kunowanzo tungamira mukunonoka kuendesa uye kunogona kukonzera vatengi kusagutsikana nechigadzirwa. Dambudziko iri rinoshanda kune chero dhizaini, ingave yekufananidza, nhamba, magetsi kana mechanical.
Kuenzaniswa nemamwe matunhu ekuvharira imwe IC nePCB, mutengo wekuvharira PCB yese ingangoita ka10, uye mutengo wekuvharira chigadzirwa chose ka100. Kana iwe uchida kuvhara kamuri rose kana chivakwa, mutengo wacho ndeyechokwadi chimiro chenyeredzi.
Chinangwa cheEMI chakadzivirirwa ndechekugadzira kage yeFaraday yakatenderedza yakavharwa RF ruzha zvikamu zvebhokisi resimbi. Mativi mashanu ekumusoro akagadzirwa nevhavha yekudzivirira kana tangi resimbi, uye rutivi rwepasi rinoitwa nepasi pasi muPCB. Mune goko rakakodzera, hapana kuburitsa kuchapinda kana kusiya bhokisi. Izvi zvinodzivirirwa zvinokuvadza zvinobuda zvichaitika, sekuburitswa kubva pakuboorwa kuenda kumakomba mumagaba, uye aya magaba anobvumira kupisa kupisa panguva yekudzoka solder. Uku kuvuza kunogonawo kukonzerwa nekukanganiswa kweEMI cushion kana welded accessories. Ruzha runogonawo kusunungurwa kubva panzvimbo iri pakati pekugadzika kwepasi kusvika kune pasi.
Sechinyakare, iyo PCB inodzivirira yakabatana nePCB ine pore welding muswe. The welding muswe ari manually welded manually pashure chikuru decoration muitiro. Iyi inzira inopedza nguva uye inodhura. Kana kuchengetedza kuchidiwa panguva yekuisa nekugadzirisa, inofanira kunge yakasungirirwa kuti ipinde munharaunda uye zvikamu pasi pechidzitiro chekudzivirira. Munzvimbo yePCB ine chikamu chakaomarara, pane njodzi inodhura yekukuvadza.
Iyo yakajairwa hunhu hwePCB liquid level shielding tank ndoinotevera:
Diki tsoka;
Low-key configuration;
Zviviri-chidimbu dhizaini (fence uye chivharo);
Pass or surface paste;
Multi-cavity pateni (kuzviparadzanisa neakawanda zvikamu zvine imwechete yekudzivirira layer);
Zvinenge zvisingaverengeki dhizaini kuchinjika;
Vents;
Aable lid yekukurumidza kugadzirisa zvikamu;
Ini / O gomba
Connector incision;
RF absorber inowedzera kudzivirira;
ESD dziviriro ine insulation pads;
Shandisa iyo yakasimba yekuvhara basa pakati pefuremu uye chivharo kudzivirira zvakavimbika kukanganisa uye vibration.
Yakajairika shielding material
Zvimwe zvakasiyana-siyana zvekudzivirira zvinogona kushandiswa, kusanganisira ndarira, nickel sirivheri uye simbi isina tsvina. Rudzi rwakanyanya ndere:
Diki tsoka;
Low-key configuration;
Zviviri-chidimbu dhizaini (fence uye chivharo);
Pass or surface paste;
Multi-cavity pateni (kuzviparadzanisa neakawanda zvikamu zvine imwechete yekudzivirira layer);
Zvinenge zvisingaverengeki dhizaini kuchinjika;
Vents;
Aable lid yekukurumidza kugadzirisa zvikamu;
Ini / O gomba
Connector incision;
RF absorber inowedzera kudzivirira;
ESD dziviriro ine insulation pads;
Shandisa iyo yakasimba yekuvhara basa pakati pefuremu uye chivharo kudzivirira zvakavimbika kukanganisa uye vibration.
Kazhinji, tin-plated simbi ndiyo yakanakisa sarudzo yekuvhara isingasviki 100 MHz, nepo tin-plated mhangura ndiyo yakanakisa sarudzo pamusoro pe200 MHz. Tin plating inogona kuwana yakanakisa welding kunyatsoshanda. Nekuti iyo aruminiyamu pachayo haina hunhu hwekupisa kupisa, hazvisi nyore kuchinjisa pasi pasi, saka kazhinji haishandiswe PCB level shielding.
Zvinoenderana nemirairo yechigadzirwa chekupedzisira, zvese zvinoshandiswa pakudzivirira zvingangoda kusangana neROHS standard. Mukuwedzera, kana chigadzirwa chacho chikashandiswa munzvimbo inopisa uye ine hunyoro, inogona kukonzera kuparara kwemagetsi uye oxidation.
Nguva yekutumira: Kubvumbi-17-2023
