Padziko lamagetsi, ma board osindikizira (PCBs) amagwira ntchito yofunika kwambiri pakulumikiza ndikuwongolera magawo osiyanasiyana. Ndiwo msana wa chipangizo chilichonse chamagetsi, kuchokera ku mafoni a m'manja kupita ku makina a mafakitale. Zikafika popanga PCB ya projekiti, makulidwe a mkuwa ndi gawo lofunikira. Ma PCB a mkuwa wolemera, omwe amadziwikanso kuti ma PCB amkuwa, atchuka kwambiri pakulipiritsa magalimoto chifukwa cha mawonekedwe awo apadera komanso mapindu awo. M'nkhaniyi, tikambirana chifukwa chake muganizire ma PCB amkuwa olemera kwambiri pantchito yanu yamakono.
Kodi Heavy Copper PCB ndi chiyani?
PCB yamkuwa yolemera ndi bolodi yozungulira yokhala ndi mkuwa wandiweyani kwambiri, womwe nthawi zambiri umaposa ma ounces atatu pa phazi lalikulu (oz/ft²). Poyerekeza, ma PCB wamba amakhala ndi makulidwe amkuwa a 1 oz/ft². Ma PCB amkuwa olemera amagwiritsidwa ntchito pamakina omwe pakufunika pompopompo, kapena bolodi imayenera kupirira kupsinjika kwamakina ndi kutentha.
Ubwino wa Heavy Copper PCBs
l Kuthekera Kwambiri Panopa
Chosanjikiza chamkuwa chokulirapo mu PCB yamkuwa yolemera chimalola kuti pakhale mphamvu zambiri zamakono. Izi zimapangitsa kuti ikhale yabwino pamapulogalamu apamwamba kwambiri monga magetsi, zowongolera magalimoto, ndi zida zamafakitale. Ma PCB amkuwa olemera amatha kunyamula ma amps 20 kapena kupitilira apo, poyerekeza ndi muyezo wa 5-10 amps wa PCB wokhazikika.
l Thermal Management
Ma PCB amkuwa olemera amadziwika ndi kuthekera kwawo kowongolera kutentha. Chosanjikiza chamkuwa chokulirapo chimalola kutentha kwabwinoko, kuchepetsa chiopsezo cha kutenthedwa ndi kulephera kwa zigawo. Izi zimawapangitsa kukhala abwino kwa mapulogalamu omwe amafunikira mphamvu zambiri ndikupanga kutentha kwakukulu.
l Kukhalitsa
Ma PCB amkuwa olemera ndi olimba komanso olimba kuposa ma PCB wamba. Mkuwa wokhuthala umapereka chithandizo chamakina bwino, kuwapangitsa kuti asawonongeke ndi kugwedezeka, kugwedezeka, ndi kupindika. Izi zimawapangitsa kukhala abwino kwa malo ovuta komanso ntchito zamafakitale.
l Kuwonjezeka Kusinthasintha
Ma PCB amkuwa olemera amapereka kusinthasintha kwapangidwe poyerekeza ndi ma PCB wamba. Mkuwa wambiri wamkuwa umapangitsa kuti zikhale zovuta komanso zowonongeka, kuchepetsa kukula kwa bolodi. Izi zimawapangitsa kukhala abwino kwa mapulogalamu omwe malo ali ochepa.
l Bwino Signal Kukhulupirika
Zosanjikiza zamkuwa zokulirapo mu ma PCB amkuwa olemera zimapereka kukhulupirika kwazizindikiro. Izi zimachepetsa chiopsezo cha kutayika kwa chizindikiro ndi kusokoneza, zomwe zimapangitsa kuti pakhale ntchito yodalirika komanso yogwira ntchito.
Kupanga makulidwe a Copper a Heavy Copper PCB?
Chifukwa makulidwe a mkuwa wolemera mkuwa PCB ndi wandiweyani ndiye yachibadwa FR4 PCB, ndiye mosavuta kupotozedwa ngati makulidwe mkuwa si zikugwirizana wina ndi mzake mu zigawo symmetrical. Mwachitsanzo, ngati mukupanga 8 zigawo zolemera zamkuwa za PCB, ndiye makulidwe amkuwa pagawo lililonse ayenera kutsatira L8=L1, L7=L2, L6=L3, L5=L4 muyezo.
Kuphatikiza apo, mgwirizano pakati pa malo ocheperako ndi mzere wocheperako uyenera kuganiziridwanso, kutsatira malamulo apangidwe kumathandizira kupanga bwino ndikufupikitsa nthawi yotsogolera. Pansipa pali malamulo apangidwe pakati pawo, LS imatanthawuza malo a mzere ndipo LW imatanthawuza kukula kwa mzere.
Kubowola malamulo kwa heavy copper board
Chokutidwa ndi dzenje (PTH) mu bolodi yosindikizidwa ndikulumikiza pamwamba ndi pansi kuti apange magetsi. Ndipo pamene mapangidwe a PCB ali ndi zigawo zambiri zamkuwa, magawo a mabowo ayenera kuganiziridwa mosamala, makamaka ma diameter a dzenje.
Mu Ukadaulo Wabwino Kwambiri, kuchuluka kwa PTH kocheperako kuyenera kukhala>= 0.3mm pamene mphete yamkuwa ya annular iyenera kukhala 0.15mm osachepera. Kwa khoma lamkuwa makulidwe a PTH, 20um-25um ngati kusakhulupirika, ndi pazipita 2-5OZ (50-100um).
Magawo oyambira a Heavy Copper PCB
Nawa magawo oyambira a PCB yamkuwa wolemera, ndikuyembekeza kuti izi zitha kukuthandizani kuti mumvetsetse luso la Best Technology.
l Zida zoyambira: FR4
l makulidwe amkuwa: 4 OZ ~ 30 OZ
l Mkuwa Wolemera Kwambiri: 20 ~ 200 OZ
l Ndondomeko: Njira, kukhomerera, V-Cut
l Chigoba cha Solder: White / Black / Blue / Green / Red Mafuta (Kusindikiza chigoba cha Solder sikophweka mu PCB yamkuwa wolemera.)
l Kumaliza pamwamba: Kumiza Golide, HASL, OSP
l Kukula kwa gulu lalikulu: 580 * 480mm (22.8" * 18.9")
Kugwiritsa Ntchito Ma PCB a Heavy Copper
Ma PCB amkuwa olemera amagwiritsidwa ntchito pazinthu zosiyanasiyana, kuphatikiza:
l Zida zamagetsi
l Owongolera magalimoto
l Makina opanga mafakitale
l Zamagetsi zamagalimoto
l Azamlengalenga ndi chitetezo machitidwe
l Ma inverters a dzuwa
l Kuwala kwa LED
Kusankha makulidwe oyenera a PCB ndikofunikira kuti projekiti iliyonse ipambane. Ma PCB a mkuwa wolemera amapereka mawonekedwe apadera ndi maubwino omwe amawapangitsa kukhala abwino pakugwiritsa ntchito mphamvu zamphamvu komanso kutentha kwambiri. Ngati mukufuna kuwonetsetsa kudalirika ndi magwiridwe antchito a polojekiti yanu, lingalirani kugwiritsa ntchito ma PCB amkuwa olemera. Ukadaulo Wabwino Kwambiri uli ndi zaka zopitilira 16 zopanga ma PCB olemera amkuwa, kotero tili otsimikiza kuti titha kukhala ogulitsa odalirika ku China. Takulandilani kuti mutitumizire nthawi iliyonse pafunso lililonse kapena mafunso okhudza ma PCB.