Umhlahlandlela Wokucaciswa Kwe-PCB Ye-Aluminium Ye-LED Ye-Aluminium Ngokwezifiso

Igama elithi “i-aluminium LED PCB eyenziwe ngokwezifiso” lihlanganisa izicelo eziningi — kusukela kuhlaka lwebhodi olungeyona ejwayelekile kuya ku-dielectric engu-3.0 W/m·K esebenza ngethusi elingu-3 oz. Akuzona zonke lezi zicelo eziqondile ngokulinganayo, futhi ezinye “izinketho” ezikhangisiwe zinqunyelwe ngezindlela ezithinta kokubili isikhathi sokuhola kanye nokusebenza kokushisa. Lesi sihloko sichaza ukuthi yini engenziwa ngezifiso ngempela ekwakhiweni kwe-aluminium LED PCB, lapho kuvela khona ukuhwebelana, nokuthi yimaphi amapharamitha anqunyelwe ngokomzimba noma ngenqubo.

Isisekelo se-Aluminium: I-Alloy, Ubukhulu, kanye Nokuqeda

Ukuzulazula kwesihloko

1. Isisekelo se-Aluminium: I-Alloy, Ubukhulu, kanye Nokuqeda
2. Isendlalelo se-Dielectric: Ukwenza Ngokwezifiso Okubaluleke Kakhulu
3. Isisindo Sethusi: Amandla Okuthwala Amanje vs. Isixazululo Se-Etch
4. Uhlaka Lwebhodi Nokuma
5. Izinketho Zokuqeda Okungaphezulu Kwama-PCB e-Aluminium LED
6. Umbala Wemaski Yesolder: Imiphumela Yokusebenza Ngaphandle Kobuhle
7. Okungenakukwazi ukwenziwa ngokwezifiso
8. Uku-oda Imininingwane Engokwezifiso: Okufanele Uyifake Ku-RFQ Yakho
9. Imibuzo Evame Ukubuzwa

Isisekelo se-aluminium yisona siguquguquki sokwenza ngokwezifiso esivame ukunganakwa. Izakhiwo ezintathu zibalulekile:

Ibanga le-alloy :

• 1050 (99.5% Al): ukuhanjiswa kokushisa okuphezulu kakhulu (~220 W/m·K), okuthambile kakhulu, amandla aphansi kakhulu — ukukhetha okujwayelekile kwemiklamo eqhutshwa ngokushisa
• 5052 (Al-Mg): ~140 W/m·K, amandla okudonswa aphezulu kakhulu kanye nokumelana nokugqwala — okuthandwa kakhulu ezindaweni zokudlidliza kanye nemikhiqizo yangaphandle
• 6061 (Al-Mg-Si): ~170 W/m·K, ukuqina okuphezulu kakhulu komshini — okusetshenziswa lapho i-PCB isebenza futhi njengesakhi se-heatsink esakhiweni

Ubukhulu : Ububanzi obujwayelekile bungu-0.8 mm kuya ku-3.0 mm. Amabhodi amancane kuno-1.0 mm adinga ukwakheka kwe-V-score noma indlela yamathuluzi yokuqondisa ngokucophelela ukuze kugwenywe ukugoba kwesisekelo. Amabhodi amakhulu kuno-2.0 mm andisa isisindo sokuhlanganiswa okuphelele futhi angadinga izinguquko zokucaciswa kwe-fastener kumkhiqizo wokugcina.

Ukwelashwa kobuso besisekelo : Isisekelo se-aluminium esinomoya siyatholakala kumadizayini lapho ingxenye engezansi yebhodi ithinta khona i-heatsink eqhubayo futhi kudingeka ukuhlukaniswa. Ukunomoya kunezela u-10–20 µm ohlangothini ngalunye futhi kusebenza njengesendlalelo sesibili se-dielectric — esiwusizo kumadizayini okuhlukaniswa kabili kodwa kwengeza izinyathelo zokucubungula.

Isendlalelo se-Dielectric: Ukwenza Ngokwezifiso Okubaluleke Kakhulu

Isendlalelo se-dielectric sichaza ukumelana nokushisa, i-voltage yokuhlukanisa, kanye nokuziphatha kwenqubo. Yilapho umehluko obaluleke kakhulu wokusebenza kwenzeka khona kuma -PCB e-aluminium substrate.

Iphuzu elibalulekile: ama-dielectric aphezulu okushisa aqinile anciphile uma kuqhathaniswa ne-voltage elinganayo, ngoba ama-filler aphezulu agcwele i-ceramic futhi amandla e-dielectric ngeyunithi ngayinye aphansi kunezinhlelo ze-polymer ezijwayelekile. Ukucacisa u-3.0 W/m·K ku-100 µm ubukhulu kusho i-voltage ephansi yokuhlukanisa kune-1.0 W/m·K ku-100 µm. Xoxa ngokushintshana nomkhiqizi wakho ngesikhathi sokubuyekezwa komklamo we-PCB we-metal core.

Isisindo Sethusi: Amandla Okuthwala Amanje vs. Isixazululo Se-Etch

Ama-PCB e-LED e-aluminium ajwayelekile asebenzisa ithusi elingu-1 oz (35 µm). Amakesi amathathu adinga ithusi elinzima:

Ithusi elingu-2 oz (70 µm) : Izintambo ze-LED ezithwala u-2–5 A ngomkhondo ngamunye. Zifanelekela iningi lamamojula e-LED anamandla amakhulu ezimbonini nakwezentengiselwano.

Ithusi elingu-3 oz (105 µm) : Ama-LED arrays anomsinga ongu-5–10 A, noma ukushisa okunamandla okubamba ama-traces kunganezela ngokunenzuzo emthwalweni wokushisa we-LED. I-Highleap Electronics icubungula ama-PCB e-aluminium LED ngesisindo sethusi esifinyelela ku-3 oz.

Ukushintshana : ithusi elisindayo linciphisa ukucaciswa okuncane kokulandelela kanye nesikhala. Ku-3 oz, ukucaciswa okuncane/isikhala ngokuvamile kuba yi-6/6 mil uma kuqhathaniswa ne-4/4 mil ku-1 oz. Uma i-IC yakho yomshayeli we-LED inama-pitch pads aseduze nokucaciswa okuphezulu kokukhanya, ukukhetha isisindo sethusi kuvimbela ukwakheka.

Uhlaka Lwebhodi Nokuma

Izinhlaka zebhodi ezingezona unxande — imigqa eyindilinga, enezinhlangothi eziyisithupha, enomumo we-L, noma eyenziwe ngokwezifiso — zisekelwa ngokugcwele kodwa zithinta kokubili ukusetshenziswa kwezinto kanye nobunzima bendlela yamathuluzi okuhambisa. Kumaphaneli e-LED endawo enkulu (>300 × 300 mm), qinisekisa ubukhulu bephaneli ye-aluminium ephezulu yefektri. Abanye abakhiqizi bavala ku-400 × 500 mm ye-aluminium; abanye bagijima ku-600 × 800 mm. Kumabhodi e-aluminium endawo eyodwa , umdwebo wohlaka kufanele futhi uchaze izikhundla zokufaka imbobo, ukuthamba kanye nezidingo zokuxhumana kwe-fixture ukuze isibuyekezo sosayizi simboze ukuhlanganiswa okuqediwe.

Ama-cutout, ama-slots, kanye nezimbobo zokufaka ezifakwe e-countersunk ziyatholakala. Ukubekezelelana kwama-slots ku-aluminium ngokuvamile kuba ngu-±0.15 mm uma kuqhathaniswa no-±0.1 mm ku-FR-4 — kubalulekile uma i-slot ihlangana nesici somshini esibekezelelana eduze endlini yokukhanyisa.

Izinketho Zokuqeda Okungaphezulu Kwama-PCB e-Aluminium LED

Kutholakala njalo iziphetho ezintathu ebusweni kuma-PCB e-aluminium LED:

I-ENIG (Igolide Elicwiliswayo Le-Nickel Elingenagesi) : Igolide elingu-3–6 µin ngaphezu kwe-nickel engu-100–150 µin. Iyisicaba, izinzile eshalofini izinyanga ezingu-12, inconywa kuma-SMD LED nama-COB arrays acwebezelayo. Inqubo ye-ENIG inezela izinsuku zokusebenza ezingu-3–5 uma kuqhathaniswa ne-HASL.

I-LF-HASL (Ukulinganisa Umoya Oshisayo Ongenalo I-Lead) : Izindleko eziphansi, iyabekezelela ukuphathwa. Ukungalingani kwendawo okungu-±8–15 µm kwenza kungafaneleki kuma-0402 kanye nama-LED pad amancane noma ama-IC omshayeli we-fine-pitch. Ilungele ama-connector pad anezimbobo ezidlulayo.

I-OSP (i-Organic Solderability Preservative) : Intengo ephansi kakhulu, ukwelashwa kwendawo encane kakhulu. Izwela ezigxivizweni zeminwe kanye nomswakama — idinga ukuphathwa okulawulwayo kusukela erisidini kuya ku-SMT. Isikhathi sokuphila seshelufu ngokuvamile siyizinyanga eziyi-6. Ifanele izinqubo zokugeleza kanye kuphela.

Umbala Wemaski Yesolder: Imiphumela Yokusebenza Ngaphandle Kobuhle

Imaski emhlophe e-solder kuma-PCB e-aluminium LED iyindlela esebenzayo, hhayi nje yokuhlobisa. Imaski emhlophe ibuyisela ukukhanya kwe-LED ohlelweni lwe-optical, ithuthukisa ukusebenza kahle kwe-luminaire ngo-3–8% kuye ngokuthi i-cavity geometry injani. Ijwayelekile kuma -PCB e-aluminium LED angaphandle kanye nezibani zokukhulisa zangaphakathi lapho ukukhanya kubalulekile khona.

Imaski emnyama e-solder imunca ukukhanya okulahlekile futhi isetshenziswa ekukhanyiseni ngemuva kwesibonisi kanye nezinhlelo zokusebenza zenzwa yokukhanya lapho ukubonakaliswa kwesibili kwehlisa ikhwalithi yesithombe.

Uhlaza olujwayelekile lubiza kancane futhi lutholakala kubaphakeli abaningi be-dielectric, kodwa aluthuthukisi noma lonakalise ukusebenza kahle kwe-optical kuma-LED fixtures ajwayelekile.

Okungenakukwazi ukwenziwa ngokwezifiso

Amanye amapharamitha abukeka njengeziguquguquko kodwa empeleni anqunyelwe yi-physics noma inqubo:

• Ukushisa kwe-dielectric akukwazi ukudlula i-Tc yezinto eziyisisekelo ngaphandle kokunqoba i-voltage yayo yokuqhekeka — kukhona ukuhwebelana okubonakalayo phakathi kokuqhuba ukushisa kanye namandla e-dielectric ezinhlelweni ezihlanganisiwe ze-polymer-ceramic
• Ama-through-vias axhumanisa ithusi nesisekelo se-aluminium awatholakali — isisekelo se-aluminiyamu sisezingeni likagesi elihlukile (phansi kwe-chassis noma sintanta) emiklamo eminingi ye-LED; noma yikuphi okuxhuma ithusi ne-aluminiyamu kuyiphutha lesekethe
• Ukulawulwa kwe-Impedance akusebenzi kuma-PCB e-LED e-aluminium anesendlalelo esisodwa — zonke izinsalela zingaphezu kwendiza yomhlabathi yensimbi eqinile futhi ukulawulwa kwe-impedance okuphawulekayo njengoba kusetshenziswa ekwakhiweni kwe-RF yemvamisa ephezulu akusebenzi ngomqondo ofanayo

Uku-oda Imininingwane Engokwezifiso: Okufanele Uyifake Ku-RFQ Yakho

I-RFQ ephelele ye-aluminium LED PCB RFQ ifaka:

1. Amafayela e-Gerber + ifayela lokubhoboza + uhlaka lwebhodi DXF
2. Ibanga le-aluminium alloy kanye nobukhulu
3. Ukushisa kwe-dielectric kanye nokukhetha komkhiqizo (noma "okulingana okunconywa ngumkhiqizi")
4. Isisindo sethusi (oz)
5. Ukuqedwa kwendawo
6. Umbala wemaski we-Solder
7. Imfuneko ye-voltage ye-Hi-pot
8. Ikilasi le-IPC (Izinga elijwayelekile leKilasi 2, Ikilasi 3 uma kudingeka)
9. Izitifiketi ezidingekayo (UL 94V-0, REACH, RoHS)

Thumela lokhu ku-Highleap Electronics ngefomu lesilinganiso se-LED PCB ukuze uthole impendulo zingakapheli amahora angama-24 ngokwezincazelo ezijwayelekile.

Imibuzo Evame Ukubuzwa

Yiliphi inani elincane kakhulu le-oda le-aluminium LED PCB specifications? Ukuze uthole imininingwane eyenziwe ngokwezifiso ngokugcwele (i-dielectric Tc engeyona ejwayelekile, i-aluminium gauge engeyona ejwayelekile), inani elincane kakhulu le-oda ngokuvamile liqala kumaphaneli angu-50-100 kuye ngezidingo zokuthenga ezincane zezinto ze-dielectric. Imininingwane ejwayelekile (1.0 W/m·K, 1.6 mm aluminium, 1 oz copper) iyatholakala kusuka kumanani e-prototype amaphaneli angu-5.

Ngingacacisa usayizi webhodi elenziwe ngokwezifiso omkhulu kunamaphaneli ajwayelekile? Yebo, ngaphakathi kosayizi wephaneli omkhulu wefektri. I-Highleap Electronics isekela ama-PCB e-aluminium LED afinyelela ku-600 × 800 mm. Amaphaneli amakhulu kakhulu (>500 × 500 mm) angadinga ukuqina kwesakhiwo ekwakhiweni kwe-fixture ukuze kulungiswe ukuqina kwesisekelo se-aluminium emaphethelweni.

Imaski emhlophe ye-solder ithinta kanjani ukusebenza kokushisa? Imaski emhlophe ye-solder inokumelana kokushisa okuphezulu kancane kuneluhlaza ngenxa ye-titanium dioxide filler eyengeziwe. Umehluko awubalulekile ngokwemibandela yokushisa (<<0.1°C/W). Inzuzo yokukhanya okubonakalayo (ukusebenza kahle kwe-luminaire okuphezulu okungu-3–8%) idlula kakhulu umphumela wokushisa ekwakhiweni kwezikhala ezikhanyayo.

Ingabe ama-PCB e-aluminium LED angenziwa abe nezimo? Cha. I-Aluminium akuyona i-substrate eguquguqukayo. Ngezinhlelo zokusebenza ze-LED eziguquguqukayo — izinto ezigqokwayo, izibani ezigobile — umkhiqizo ofanele yi- PCB ye-LED eguquguqukayo ku-substrate ye-polyimide, enezidingo ezahlukene zokuphathwa kokushisa.