Metal Core PCB imatanthawuza maziko (maziko) a PCB ndi chitsulo, osati FR4/CEM1-3 yachibadwa, ndi zina zotero. Aluminiyamu ali ndi kutentha kwabwino kwa kusamutsa ndi kutulutsa mphamvu, koma yotsika mtengo; mkuwa umagwira ntchito bwino kwambiri koma ndi wokwera mtengo kwambiri, ndipo chitsulo chimatha kugawidwa kukhala chitsulo chosapanga dzimbiri komanso chitsulo chosapanga dzimbiri. Ndiwolimba kwambiri kuposa aluminiyumu ndi mkuwa, koma matenthedwe amatenthedwe ndi otsika kuposa iwonso. Anthu azisankha zawo zoyambira/zoyambira malinga ndi momwe amagwiritsidwira ntchito.

Nthawi zambiri, aluminiyamu ndiye njira yotsika mtengo kwambiri poganizira kusinthasintha kwamafuta, kukhazikika, komanso mtengo. Chifukwa chake, zoyambira / zapakati pa Metal Core PCB wamba zimapangidwa ndi aluminiyamu. Pakampani yathu, ngati sichopempha chapadera, kapena zolemba, chitsulo chapakati chidzakhala aluminiyamu, ndiye MCPCB itanthauza Aluminium Core PCB. Ngati mukufuna Copper Core PCB, Steel Core PCB, kapena Stainless steel core PCB, muyenera kuwonjezera zolemba zapadera pojambula.

Nthawi zina anthu amagwiritsa ntchito chidule cha "MCPCB", m'malo mwa dzina lonse ngati Metal Core PCB, kapena Metal Core Printed Circuit Board. Ndipo amagwiritsidwanso ntchito mawu osiyanasiyana amatanthauza maziko / maziko, kotero mudzawonanso dzina losiyana la Metal Core PCB, monga  Metal PCB, Metal Base PCB, Metal Backed PCB, Metal Clad PCB ndi Metal Core Board ndi zina zotero.

MCPCBs amagwiritsidwa ntchito m'malo mwa chikhalidwe FR4 kapena CEM3 PCBs chifukwa cha kuthekera efficiently kusungunula kutentha kutali zigawo zikuluzikulu. Izi zimatheka pogwiritsa ntchito Thermally Conductive Dielectric Layer.

Kusiyana kwakukulu pakati pa bolodi la FR4 ndi MCPCB ndi matenthedwe a dielectric material 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 kumalo 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 amapangidwa ndi Aluminiyamu pachimake, koma nthawi zina zitsulo pachimake PCB ntchitonso.

Ubwino wa MCPCB

1.kutentha kutentha

Ma LED ena amataya pakati pa 2-5W kutentha ndi kulephera kumachitika pamene kutentha kwa LED sikuchotsedwa bwino; kuwala kwa LED kumachepetsedwa komanso kuwonongeka 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 dielectric layer ya thermally conductive imakhala ngati milatho pakati pa ma IC ndi sinki ya kutentha. Sinki imodzi yokha yotenthetsera imayikidwa molunjika ku aluminiyamu m'munsi kuti ichotse kufunikira kwa masinki angapo otentha pamwamba pazigawo zokwera pamwamba.

2. kuwonjezeka kwa kutentha

Kukula kwamafuta ndi kutsika ndi chikhalidwe chofala cha chinthucho, CTE yosiyana ndi yosiyana pakukulitsa kwamafuta. Monga mawonekedwe ake, aluminiyamu ndi mkuwa ali ndi patsogolo wapadera kuposa FR4 wamba, matenthedwe madutsidwe akhoza kukhala 0.8~3.0 W/c.K.

3. kukhazikika kwazithunzi

N'zoonekeratu kuti kukula zitsulo ofotokoza kusindikizidwa dera bolodi khola kuposa insulating zipangizo. Kusintha kukula kwa 2.5 ~ 3.0% pamene Aluminiyamu PCB ndi zotayidwa masangweji mapanelo anatenthedwa kuchokera 30 ℃ mpaka 140 ~ 150 ℃.


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