Best Technology ndi mmodzi wa opanga bwino pcb ndi kusindikizidwa dera bolodi ogulitsa China
Chilankhulo
Best Technology ndi mmodzi wa opanga bwino pcb ndi kusindikizidwa dera bolodi ogulitsa China
Metal Core PCB zikutanthauza kuti maziko (maziko) a PCB ndi chitsulo, osati FR4/CEM1-3, ndi zina zotero, ndipo pakali pano, zitsulo zomwe zimagwiritsidwa ntchito kwambiriOpanga MCPCB Aluminiyamu, Copper, ndi aloyi yachitsulo. Aluminiyamu ali ndi kutentha kwabwino kwa kusamutsa ndi kutulutsa mphamvu, komabe ndi yotsika mtengo; mkuwa umagwira ntchito bwino kwambiri koma ndi wokwera mtengo kwambiri, ndipo chitsulo chimatha kugawidwa kukhala chitsulo chosapanga dzimbiri komanso chitsulo chosapanga dzimbiri. Ndilolimba kwambiri kuposa aluminiyumu ndi mkuwa, koma matenthedwe ake ndi otsika kuposa awonso. Anthu azisankha zawo zoyambira/zoyambira malinga ndi ntchito zawo zosiyanasiyana.
Nthawi zambiri, aluminiyamu ndiye njira yachuma kwambiri poganizira momwe amatenthetsera, kukhazikika kwake, komanso mtengo wake. Chifukwa chake, maziko / maziko a Metal Core PCB wamba amapangidwa ndi aluminiyamu. Pakampani yathu, ngati palibe zopempha zapadera, kapena zolemba, chitsulo chapakati chidzakhala aluminium, ndiyezitsulo zoyendetsedwa ndi PCB zidzatanthauza Aluminium Core PCB. Ngati mukufuna Copper Core PCB, Steel Core PCB, kapena Stainless steel core PCB, muyenera kuwonjezera zolemba zapadera pachithunzichi.
Nthawi zina anthu amagwiritsa ntchito chidule cha "MCPCB", m'malo mwa dzina lonse la Metal Core PCB, Metal Core PCBs, kapena Metal Core Printed Circuit Board. Ndipo amagwiritsidwanso ntchito mawu osiyanasiyana amatanthauza pachimake / maziko, kotero mudzawonanso mayina osiyanasiyana a Metal Core PCB, monga Metal PCB, Metal Base PCB, Metal Backed PCB, Metal Clad PCB, Metal Core Board, ndi zina zotero. Thezitsulo core PCBs amagwiritsidwa ntchito m'malo mwa ma PCB achikhalidwe a FR4 kapena CEM3 chifukwa amatha kutulutsa kutentha kutali ndi zigawo zake. Izi zimatheka pogwiritsa ntchito Thermally Conductive Dielectric Layer.
Kusiyana kwakukulu pakati pa bolodi la FR4 ndi azitsulo zochokera PCB ndi matenthedwe azinthu za dielectric mu MCPCB. Izi zimakhala ngati mlatho wotentha pakati pa zigawo za IC ndi mbale yotsatsira zitsulo. Kutentha kumayendetsedwa kuchokera ku phukusi kudzera pachimake chachitsulo kupita kumadzi owonjezera otentha. Pa bolodi la FR4, kutentha kumakhalabe kosasunthika ngati sikunasamutsidwe ndi heatsink yapamwamba. Malinga ndi kuyesa kwa labu, MCPCB yokhala ndi 1W LED idakhalabe pafupi ndi 25C, pomwe 1W LED yomweyi pa bolodi ya FR4 idafika 12C pamalo ozungulira. LED PCB nthawi zonse imapangidwa ndi Aluminium pachimake, koma nthawi zina PCB yachitsulo imagwiritsidwanso ntchito.
Ubwino wa zitsulo zoyendetsedwa ndi PCB
1. Kutentha kwa kutentha
Ma LED ena amataya pakati pa 2-5W kutentha ndi kulephera kumachitika pamene kutentha kwa LED sikuchotsedwa bwino; kutulutsa kwa kuwala kwa LED kumachepetsedwa komanso kumawonongeka pamene kutentha kumakhalabe pa phukusi la LED. Cholinga cha MCPCB ndikuchotsa bwino kutentha ku ma IC onse apamutu (osati ma LED okha). Ma aluminium base ndi thermally conductive dielectric layer amakhala ngati milatho pakati pa ma IC ndi sink ya kutentha. Sinki imodzi yokha ya kutentha imayikidwa mwachindunji ku aluminiyamu maziko kuchotsa kufunikira kwa masinki ambiri otentha pamwamba pa zigawo zokwera pamwamba.
2. Kuwonjezeka kwa kutentha
Kuwonjezeka kwa kutentha ndi kutsika ndi chikhalidwe chofala cha chinthu, CTE yosiyana ndi yosiyana ndi kukula kwa kutentha. Monga mawonekedwe awo, aluminiyumu ndi mkuwa ali ndi patsogolo kwapadera ku FR4 wamba, matenthedwe matenthedwe amatha kukhala 0.8~3.0 W/c.K.
3. Kukhazikika kwapakatikati
N'zoonekeratu kuti kukula kwa zitsulo zochokera PCB ndi khola kuposa zipangizo insulating. Kusintha kukula kwa 2.5 ~ 3.0% pamene Aluminiyamu PCB ndi zotayidwa masangweji mapanelo anatenthedwa kuchokera 30 ℃ mpaka 140 ~ 150 ℃.
