I-Aluminium PCB yezibonisi ze-LED zangaphandle | Izixazululo Ezingangeni Manzi Neziqinile

Isingeniso Sezidingo ze-PCB zangaphandle ze-LED

Izibonisi ze-LED zangaphandle zisebenza ngaphansi kwezimo zemvelo ezinzima kakhulu ezidinga izixazululo ezikhethekile zebhodi lesifunda. I-PCB ye-LED yangaphandle kumele imelane nokuchayeka okuqhubekayo ekushiseni okuphezulu, ukungena komswakama, imvula eqondile, kanye nemisebe ye-ultraviolet enamandla ngenkathi igcina ukusebenza kukagesi okuqhubekayo. Lezi zingcindezi zemvelo zidala izingozi zokwehluleka ezingaxazululwa ngokwanele yizinsika ezivamile ze-FR4.

Ubuchwepheshe be -Aluminium PCB sebube yindinganiso embonini yezinhlelo zokusebenza zokubonisa ngaphandle ngenxa yezakhiwo zayo ezinhle kakhulu. I-PCB eyinhloko ye-aluminium inikeza ukuhanjiswa kokushisa okumangalisayo, ukuzinza komshini, kanye nokumelana nemvelo okubalulekile ekufakweni kwe-LED enamandla aphezulu. Uma yakhiwe ngezinyathelo ezifanele zokuvimbela amanzi kanye nokwelashwa okumelana nokugqwala, lezi zixazululo ze-MCPCB ze-LED zinikeza ukuthembeka kwesikhathi eside okudingwa ukufakwa kwangaphandle okuhlala njalo.

Ukuphathwa Okushisayo ku-Outdoor LED PCB Design

Okuphakeme Ukuqothuka Okushisa Ukusebenza

Ama-LED anamandla amakhulu akhiqiza imithwalo emikhulu yokushisa ethinta ngqo ubude besikhathi sengxenye kanye nokusebenza kokubonisa. Imiklamo ye-PCB yokusaphazeka kokushisa okuphezulu esebenzisa ama-substrate e-aluminium ifinyelela amanani okuqhuba ukushisa phakathi kuka-1.0 kuya ku-3.0 W/mK, uma kuqhathaniswa no-0.3 W/mK wezinto ezijwayelekile ze-FR4. Le nzuzo yokushisa iba semqoka lapho ukufakwa kwe-PCB ye-LED yangaphandle kusebenza ngaphansi kwelanga eliqondile lapho amazinga okushisa edlula u-40°C.

Isisekelo se-aluminium sisebenza njengesisakazi esihlanganisiwe sokushisa esihambisa amandla ashisayo kude namajunction e-LED futhi sisabalalisa endaweni yonke yebhodi. Le nqubo isusa izindawo ezidonsela kuzo ezasendaweni ezivamile kumadizayini we-PCB asekelwe ngaphandle asekelwe ku-FR4, okuholela ekusebenzeni okufanayo kwe-LED kanye nokuphila okunwetshiwe kokusebenza.

Izinzuzo Ezibalulekile Zokushisa

Ama-Aluminium substrates aletha izinzuzo ezilinganisekayo zezinhlelo zokusebenza ze-LED zangaphandle:

• Amazinga okushisa okuhlangana aphansi - Ukudlulisa ukushisa okusebenzayo kugcina ukuhlangana kwe-LED ngaphakathi kwebanga lokusebenza elifanele ngisho naphakathi kokuchayeka kakhulu elangeni
• Ukusabalalisa izinga lokushisa okufanayo - Ukusabalala kokushisa kuyo yonke isisekelo se-aluminium kuvimbela ukuhluka kokusebenza phakathi kwama-elementi e-LED angawodwana
• Ubude besikhathi besici obunwetshiwe - Ukuncipha kwengcindezi yokushisa kubambezela ukuwohloka kwe-LED futhi kugcina imininingwane yokukhanya phakathi neminyaka yokusebenza
• Ukusebenza kahle kokupholisa okungenzi lutho - Okuphezulu conductivity ezishisayo kuvame ukuqeda isidingo sezinhlelo zokupholisa ezisebenzayo ezindaweni ezimaphakathi

Ukuvikelwa Kwesakhiwo Nemvelo kwe-PCB yangaphandle ye-LED

Ukuzinza Kwemishini Ngaphansi Kokucindezeleka Kwemvelo

Imijikelezo yezinga lokushisa kwemvelo nokuchayeka komswakama kudala izingcindezi zemishini ezisonta izinto ezivamile ze-PCB. Izakhiwo ze-PCB ze-aluminium ezingagqwali zibonisa ama-coefficients amancane okunweba okushisayo, agcina ukuqina kohlangothi kuwo wonke amabanga okushisa ukusuka ku -40°C kuya ku-+85°C. Lokhu buqotho besakhiwo kuvimbela ukungahambi kahle kwe-LED futhi kulondoloza ukucaciswa kokusebenza kokubona kukho konke ukuhlukahluka kwesizini.

Amandla okusebenza emvelo wama-aluminium substrates anikezela ukumelana nomthelela obalulekile ekufakweni kwangaphandle okungaphansi kwemithwalo yomoya nokudlidliza okukhuphukayo. Ngokungafani nama-substrates ezinto eziphilayo aguquguqukayo, ama-aluminum PCB angangeni manzi agcina ukucaciswa kokucaba okubalulekile kumabanga agxilile we-LED nokusatshalaliswa kokukhanya okufanayo.

I-Corrosion kanye ne-UV Protection Systems

Izindawo ezingaphandle ziletha izinselele zokugqwala okuqhubekayo ngokuchayeka kwesifutho sikasawoti, ukungcola kwezimboni, nemijikelezo yokujiya. Ukuqaliswa kwe-PCB emelana ne-UV kusebenzisa ukwelashwa okukhethekile okungaphezulu okudala imigoqo esebenzayo ngokumelene ne-oxidation nokuhlaselwa kwamakhemikhali:

• I-Anodized aluminium coatings - Ukuguqulwa kwendawo ye-Electrochemical kudala izingqimba ze-oxide eziqinile ezimelana nomswakama nokuchayeka kwamakhemikhali
• Izingubo zokuvikela ezihambisanayo - Izendlalelo ze-polymer zivikela iminonjana yethusi namajoyinti e-solder ekungcoleni kwemvelo
• Amamaski e-solder aqinile e-UV - Amafomula akhethekile amelana nokuwohloka kwe-photochemical ngaphansi kwemisebe yelanga eqhubekayo
• Izindlela zokwelapha zokuvala uphawu - Ukuvikelwa kwemingcele kuvimbela ukungena komswakama kuma-perimeters ebhodi

Isisekelo se-aluminium ngokwaso sihlala sizinzile ngokwamakhemikhali ngaphansi kokuchayeka kwe-UV, sinikeza isisekelo esihlala njalo esidlula ezinye izinto eziphilayo ezinhlelweni zangaphandle.

Amasu Wokuklama Amanzi

Ukuvikela umswakama okusebenzayo kudinga ukuhlanganiswa okuhlelekile kwezinto nezici zesakhiwo sesakhiwo. Izingxenye ze-PCB ze-aluminium ezingangeni manzi zisebenzisa i-conformal coatings, i-silicone encapsulation, noma i-potting compounds ukudala imigoqo eqhubekayo phezu kwezingxenye. Idizayini yeleveli yebhodi ihlanganisa ngokuxhuma, ukuvala unqenqema, nokubekwa kwengxenye yesu ukuze kuncishiswe izindlela zokungena emanzini, ukunika amandla izilinganiso zokuvikela ukungena kwe-IP65 noma ze-IP67 ezifanele ukufakwa kwangaphandle unomphela.

Imininingwane Yedizayini ye-Outdoor LED Aluminium PCB

Amapharamitha Okwakha Abalulekile

Ukusebenza okuphezulu kwe-LED PCB yangaphandle kuncike ekucacisweni kwe-substrate okunembayo. Ugqinsi lwebhodi ngokuvamile lusukela ku-1.0mm ukuya ku-3.2mm, kanye nezingqimba zesisekelo se-aluminium ezihlanganisa u-1.0mm kuya ku-2.0mm wogqinsi oluphelele. Isendlalelo se-dielectric insulation phakathi kwesekhethi yethusi nesisekelo se-aluminium silinganisa ngokujulile ukusebenza okushisayo ngokumelene nokuhlukaniswa kukagesi, nogqinsi olujwayelekile olusuka ku-75μm kuya ku-150μm.

Ukukhetha isisindo se-foil yethusi kubhekana nezidingo eziphethe njengamanje ngenkathi kulawulwa isisindo sokushisa. Ikhopha ye-ounce eyodwa (35μm) yanela ukulandela ngomkhondo wesignali, kuyilapho izindlela zokuphakela i-LED zamandla aphezulu zidinga ama-ounces amabili (70μm) noma ama-ounce amathathu (105μm) ukuze kuncishiswe ukwehla kwamandla kagesi futhi kunciphise ukushisisa okuphikisayo.

Ukwelashwa Kwe-Surface Finish kanye Nezokuvikela

Ukukhetha ukuphela kwendawo kuthinta kakhulu ukwethembeka kwesikhathi eside ezindaweni ezingaphandle. I-Electroless Nickel Immersion Gold (ENIG) iletha ukucaba okuphakeme nokumelana nokugqwala uma kuqhathaniswa ne-Hot Air Solder Leveling (HASL), ikwenze kube ukukhetha okuthandwayo kwezinhlelo zokusebenza ze-PCB zokubonisa ngaphandle. Izingubo ezengeziwe ze-anodized ezindaweni eziveziwe ze-aluminium zinikeza izendlalelo zesibili zokuvikela imvelo.

Ukuhlolwa Kweziqu Zemvelo

Ukuqinisekiswa kwedizayini kufanele kufake phakathi ukuhlolwa kwemvelo okusheshisiwe okuphindaphinda iminyaka yokuchayeka ngaphandle:

• Ukuhlolwa kokuchayeka kwe-UV - Ukuchayeka emisebeni ye-ultraviolet okuqhubekayo kuqinisekisa ukuzinza kwe-coating nokugcinwa kombala
• Ukuhlolwa kwesifutho sikasawoti - Iphrothokholi ye-ASTM B117 ihlola ukumelana nokugqwala ezindaweni ezisogwini
• Ukuhamba ngebhayisikili okushisayo - Amazinga okushisa eqile ukusuka ku-40°C kuya ku-+85°C aqinisekisa ukuhambisana kwezinto ezibonakalayo nobuqotho obuhlangene be-solder
• Ukuhlolwa kokungena komswakama - Ukuqinisekiswa kokulinganisa kwe-IP kuqinisekisa ukusebenza kahle kokuvimbela amanzi ngaphansi kwengcindezi

Izicelo ze-Outdoor LED Aluminium PCB Solutions

Ukukhangisa Kwedijithali kanye namabhodi okukhangisa

Izibonisi zokukhangisa zangaphandle ezinkulu zimelela uhlelo lokusebenza oluyinhloko lobuchwepheshe be-aluminium PCB ezinhlelweni ze-LED . Amabhodi ezikhangiso edijithali anobubanzi obungamamitha amaningana asebenzisa imiklamo yamaphaneli e-modular ehlanganisa ama-substrate e-PCB ashisa kakhulu ukuze kugcinwe amazinga okukhanya angaphezu kwama-nit angu-5,000 adingekayo ukuze kubonakale ukukhanya kwasemini. Amakhono okuphatha ukushisa avumela ukusebenza okuqhubekayo phakathi kwezinga lokushisa lasehlobo ngaphandle kokunciphisa ukusebenza.

Izinkundla zemidlalo kanye nezinkundla

Imibukiso ye-perimeter yenkundla kanye namabhodi emiphumela adinga ukwethembeka okukhethekile ngenxa yokufinyelela okunzima ukulungisa phakathi nemicimbi. Ukuqaliswa kwe-PCB ye-aluminium engagqwali kulezi zinhlelo zokusebenza kubonisa ubude bempilo yokusebenza obudlula iminyaka eyishumi ngokungenelela okuncane. Isakhiwo esingangeni manzi simelana nokuchayeka emvuleni kuyilapho ukuphathwa okushisayo kuvimbela ukuwohloka phakathi nemicimbi yantambama ngaphansi kokukhanya kwelanga okuqondile.

Ezokuthutha kanye Nezinhlelo Zolwazi Lomphakathi

Izimpawu zemiyalezo yomgwaqo onguthelawayeka nezibonisi zesiteshi sezokuthutha zisebenza ezindaweni eziyinselele ezinamathuba alinganiselwe okulungisa. Amadizayini e-PCB amelana ne-UV agcina ukufaneleka kokuboniswa kuyo yonke iminyaka yokusebenza ngaphandle okuqhubekayo, kuyilapho ukuzinza kwesakhiwo se-aluminium core kuqinisekisa ukuma okunembile kwe-LED naphezu kokudlidliza okubangelwa imoto nokweqisa kwezinga lokushisa.

Isiphetho

Ubuchwepheshe be-Aluminium PCB buletha izici zokusebenza ezibalulekile ezichaza ukuqaliswa okuphumelelayo kwesibonisi se-LED yangaphandle. Ukuhlanganiswa kokuphatha okushisayo okuphakeme, ukuvikelwa kwemvelo okuphelele, nokuzinza kwemishini kunika amandla ukusebenza okuthembekile kuzo zonke izimo ezifunwayo ezihambisana nokufakwa kwangaphandle.

Amakhono we-Highleap Electronics

I-Highleap Electronics inikeza izixazululo eziphelele zokukhiqiza i-LED PCB yangaphandle :

• Idizayini ye-aluminium substrate yangokwezifiso - Ukusekelwa kobunjiniyela bokwenza ngcono okushisayo namasu okuvikela imvelo ahambisana nezidingo ezithile zohlelo lokusebenza
• Izindlela zokwelapha ezisezingeni eliphezulu - Ukuqedwa kwe-ENIG, ukunamathela ngokuhlelekile, nezinqubo ze-anodization zokugqwala okuphezulu nokumelana ne-UV
• Iziqu zemvelo - Izinqubomgomo zokuhlola eziphelele ezifaka isifutho sikasawoti, ukuhamba ngebhayisikili okushisayo, nokuqinisekiswa kwesilinganiso se-IP
• Amakhono okukhiqiza ivolumu - Ukukhiqiza okunokwethenjelwa kusuka ku-prototype kuya ekukhiqizweni kwevolumu ephezulu ngamazinga ekhwalithi angashintshi

Uzakwethu ne-Highleap Electronics ukuthuthukisa izixazululo ze-PCB ze-aluminium zangaphandle eziklanyelwe ukwethembeka kwesikhathi eside. Xhumana nethimba lethu lezobuchwepheshe ukuze uxoxe ngezidingo zephrojekthi yakho futhi uthole ukuqondiswa kochwepheshe kuyo yonke inqubo yokuthuthukisa.