I-Best Technology ingenye yabakhiqizi abahamba phambili be-pcb nabahlinzeki bebhodi lesifunda ephrintiwe e-China
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I-Best Technology ingenye yabakhiqizi abahamba phambili be-pcb nabahlinzeki bebhodi lesifunda ephrintiwe e-China
I-Metal Core PCB kusho isisekelo (isisekelo) se-PCB insimbi, hhayi i-FR4/CEM1-3 evamile, njll., futhi okwamanje, insimbi esetshenziswa kakhuluAbakhiqizi be-MCPCB I-aluminium, ithusi, ne-alloy yensimbi. I-Aluminium inekhono elihle lokudlulisa ukushisa nekhono lokulahla, kodwa nokho ishibhile; ithusi linokusebenza okungcono nakakhulu kodwa libiza kakhulu, futhi insimbi ingahlukaniswa ibe yinsimbi evamile nensimbi engagqwali. Iqinile kakhulu ukwedlula kokubili i-aluminium nethusi, kodwa ukuguquguquka kwayo okushisayo kuphansi kuneyabo futhi. Abantu bazozikhethela isisekelo/ingqikithi yabo ngokwezinhlelo zabo ezihlukene.
Ngokuvamile, i-aluminium iyindlela yomnotho kakhulu uma kucatshangelwa ukusebenza kwayo okushisayo, ukuqina, kanye nezindleko. Ngakho-ke, izinto eziyisisekelo/eziyinhloko ze-Metal Core PCB evamile zenziwe nge-aluminium. Enkampanini yethu, uma kungekho zicelo ezikhethekile, noma amanothi, ireferensi yensimbi eyinhloko izoba i-aluminium, kei-PCB esekelwe ngensimbi kuzosho Aluminium Core PCB. Uma udinga i-Copper Core PCB, i-Steel Core PCB, noma i-Stainless steel core PCB, kufanele wengeze amanothi akhethekile emdwebeni.
Kwesinye isikhathi abantu bazosebenzisa isifinyezo esithi “MCPCB”, esikhundleni segama eligcwele le-Metal Core PCB, Metal Core PCBs, noma i-Metal Core Printed Circuit Board. Futhi kusetshenziswe igama elihlukile libhekisela kumnyombo/isisekelo, ngakho-ke uzobona namagama ahlukene we-Metal Core PCB, njengokuthi I-Metal PCB, i-Metal Base PCB, i-Metal Backed PCB, i-Metal Clad PCB, i-Metal Core Board, njalonjalo. Iinsimbi core PCBs asetshenziswa esikhundleni sama-FR4 endabuko noma ama-CEM3 PCB ngenxa yekhono lokuhlakaza kahle ukushisa kude nezingxenye. Lokhu kufezwa ngokusebenzisa I-Thermally Conductive Dielectric Layer.
Umehluko omkhulu phakathi kwebhodi le-FR4 kanye ne-aI-PCB esekwe ngensimbi i-thermal conductivity ye-dielectric material ku-MCPCB. Lokhu kusebenza njengebhuloho elishisayo phakathi kwezingxenye ze-IC kanye ne-metal backing plate. Ukushisa kuqhutshwa kusukela kuphakeji ngokusebenzisa umgogodla wensimbi kuya kusinki wokushisa owengeziwe. Ebhodini le-FR4, ukushisa kuhlala kumile uma kungadluliswanga yi-heatsink ye-topical. Ngokokuhlolwa ngelebhu i-MCPCB ene-1W LED yahlala iseduze nendawo engu-25C, kuyilapho yona kanye i-1W LED ebhodini le-FR4 ifinyelela ku-12C ngaphezu kwe-ambient. I-LED PCB ihlale ikhiqizwa nge-Aluminium core, kodwa kwesinye isikhathi i-PCB ewumgogodla wensimbi nayo isetshenziswa.
Inzuzo ye-PCB esekelwe ngensimbi
1. Ukukhipha ukushisa
Amanye ama-LED ahlakaza phakathi kuka-2-5W wokushisa nokwehluleka kwenzeka lapho ukushisa okuvela ku-LED kungasuswa kahle; ukukhanya kwe-LED kuyancishiswa futhi kuyehla lapho ukushisa kuhlala kumile kuphakheji ye-LED. Injongo ye-MCPCB iwukukhipha kahle ukushisa kuwo wonke ama-topical IC (hhayi ama-LED kuphela). Isisekelo se-aluminium kanye nesendlalelo se-dielectric conductive thermally sisebenza njengamabhuloho phakathi kwama-IC kanye nesinki yokushisa. Isinki esisodwa sokushisa sigxunyekwe ngqo kusisekelo se-aluminium sisusa isidingo samasinki amaningi okushisa phezu kwezingxenye ezifakwe phezulu.
2. Ukunwetshwa kwe-thermal
Ukunwetshwa kwe-thermal nokufinyela kuyimvelo evamile yento, i-CTE ehlukile ihlukile ekwandiseni okushisayo. Njengezici zazo, i-aluminiyamu nethusi kunokudlulela okuhlukile ku-FR4 evamile, ukuqhutshwa kwe-thermal kungaba ngu-0.8~3.0 W/c.K.
3. Ukuzinza kwe-Dimensional
Kuyacaca ukuthi ubukhulu be-PCB esekelwe ensimbi buzinzile kunezinto zokuvikela. Ukushintsha kosayizi okungu-2.5 ~ 3.0% lapho i-Aluminium PCB kanye namaphaneli wesemishi we-aluminium ashisisa ukusuka ku-30 ℃ ukuya ku-140 ~ 150 ℃.
Umhlinzeki webhodi lesekethe eliphrintiwe le-Best Technology, owasungulwa ngoJuni 28, 2006, uyinkampani ebhalisiwe e-Hong Kong.
