Eminyakeni yamuva, ngokuthuthuka okusheshayo kobuchwepheshe be-chip ye-LED, ukusetshenziswa kwezentengiso kwama-LED sekuvuthwe kakhulu.Imikhiqizo ye-LED yaziwa ngokuthi "imithombo yokukhanya okuluhlaza" ngenxa yobukhulu bayo obuncane, ukusetshenziswa kwamandla okuphansi, impilo yesevisi ende, ukukhanya okuphezulu, ukuvikelwa kwemvelo, ukuqina nokuqina, kanye nezibani ze-LED ezibalulekile zokonga amandla.Ngokusebenzisa umthombo wokukhanya we-LED ogqamile kakhulu futhi onamandla aphezulu, onamandla asebenza kahle kakhulu, ungonga ugesi ongaphezu kuka-80% kunezibani zendabuko ze-incandescent, futhi ukukhanya kuphindwe izikhathi ezingu-10 kunamalambu e-incandescent ngaphansi kwamandla afanayo.Ubude besikhathi sokuphila bungaphezu kwamahora angu-50 000, okuphindwe izikhathi ezingaphezu kuka-50 kunezibani zemicu ye-tungsten evamile.I-LED yamukela ukushisela okuthembekile okuthuthukisiwe kwezobuchwepheshe-eutectic, okuqinisekisa ngokugcwele impilo ende ye-LED.Izinga elikhanyayo lokubona ukusebenza kahle lingaba phezulu njengo-80lm/W noma ngaphezulu, izinhlobonhlobo zamazinga okushisa ombala welambu le-LED ayatholakala, inkomba enikeza umbala ophezulu, nokunikezwa kombala okuhle.Ubuchwepheshe be-LED yentambo yokukhanya ye-LED buthuthuka usuku ngalunye oludlulayo, ukusebenza kahle kwayo okukhanyayo kwenza impumelelo emangalisayo, futhi intengo ihlale yehla.Njengomkhiqizo wokukhanyisa, ingene ezinkulungwaneni zemizi nemigwaqo.
Kodwa-ke, imikhiqizo yomthombo wokukhanya we-LED ayinakho ukushiyeka.Njengayo yonke imikhiqizo kagesi, izibani ze-LED zizokhiqiza ukushisa ngesikhathi sokusetshenziswa, okuholela ekwenyukeni kwezinga lokushisa elizungezile kanye nezinga labo lokushisa.I-LED iwumthombo wokukhanya wesimo esiqinile onendawo encane ye-chip ekhipha ukukhanya kanye nokuminyana okukhulu kwamanje nge-chip ngesikhathi sokusebenza;kuyilapho amandla e-chip eyodwa ye-LED mancane uma kuqhathaniswa, kanye nokuphuma kokukhanya okukhanyayo nakho kuphansi.Ngakho-ke, uma kusetshenziswa imishini yokukhanyisa, izibani eziningi zidinga Inhlanganisela yemithombo eminingi yokukhanya ye-LED yenza i-LED chip denser.Futhi ngenxa yokuthi izinga lokuguqulwa kwe-photoelectric lomthombo wokukhanya we-LED aliphezulu, cishe kuphela u-15% kuya ku-35% wamandla kagesi aguqulwa abe okukhipha ukukhanya, futhi okusele kuguqulwa amandla okushisa.Ngakho-ke, lapho inombolo enkulu yemithombo yokukhanya ye-LED isebenza ndawonye, inani elikhulu lamandla okushisa lizokwenziwa.Uma lokhu kushisa kungenakuqedwa ngokushesha ngangokunokwenzeka, kuzobangela ukuthi izinga lokushisa lenhlanganiso yomthombo wokukhanya we-LED likhuphuke, kunciphise ama-photon akhishwa i-chip, kunciphise izinga lokushisa lombala, kusheshise ukuguga kwe-chip, futhi kufinyeze ukuphila. kwedivayisi.Ngakho-ke, ukuhlaziya okushisayo kanye nomklamo ofanele wesakhiwo sokukhipha ukushisa kwezibani ze-LED kuba bucayi kakhulu.
Ngokusekelwe eminyakeni yokuhlangenwe nakho kokuthuthukiswa kwemikhiqizo ye-LED embonini, kuye kwasungulwa uhlelo oluphelele lwethiyori yokuklama.Njengomklami wesakhiwo somkhiqizo okhanyayo, kulingana nokuma emahlombe ama-giants.Nokho, akukhona ukuthi kulula kangaka ukufinyelela phezulu emahlombe imidondoshiya.Kunezinkinga eziningi ezidinga ukunqotshwa ekwakhiweni kwansuku zonke.Isibonelo, ngokombono wezindleko, ekwakhiweni, kuyadingeka ukuhlangabezana nezidingo zokushisa ukushisa komkhiqizo, kodwa futhi nokunciphisa izindleko;okwamanje, indlela evame ukusetshenziswa kakhulu emakethe ukusebenzisa i-aluminium alloy fins ukuze kukhishwe ukushisa.Ngale ndlela, kanjani abaklami Ukunquma ibanga legebe phakathi kwe-fin ne-fin kanye nokuphakama kwe-fin, kanye nomthelela wesakhiwo somkhiqizo ekugelezeni komoya kanye nokuma kwendawo ephumayo ukukhanya, kuholela ekulahlekeni kokushisa okungahambisani.Lezi yizinkinga ezikhungethe abaklami.
Enqubweni yokuklama izibani ze-LED, kunezindlela eziningi zokunciphisa izinga lokushisa le-junction ye-LED nokuqinisekisa ukuphila kwe-LED: ① Qinisa ukuqhutshwa kokushisa (kunezindlela ezintathu zokudlulisa ukushisa: ukushintshwa kokushisa, ukushintshanisa kokushisa kwe-convection kanye nokushintshana kokushisa kwemisebe) . izinga lokushisa.
Khona-ke ukuqinisa ukuqhutshwa kokushisa, singasebenzisa izindlela ezilandelayo: ①, indlela enhle yesibili yokukhipha ukushisa;②, ukunciphisa ukumelana okushisayo phakathi kokufakwa kwesixhumi esibonakalayo se-LED kanye nendlela yokukhipha ukushisa kwesibili;③, ukuthuthukisa ukuthintana phakathi kwe-LED kanye ne-secondary heat dissipation mechanism I-conductivity eshisayo yobuso;④, idizayini yesakhiwo esebenzisa umgomo wokuhamba komoya.
Ngakho-ke, ukuchithwa kokushisa kuyigebe elingenakulinganiswa labaklami bemikhiqizo embonini yokukhanyisa kulesi sigaba.Kuleli qophelo, ngikholelwa ukuthi ngokuthuthuka kwezinguquko kobuchwepheshe, umthelela wokukhipha ukushisa kuma-LED uzoba mncane kancane kancane.Sizama nokuthola izindlela zokunciphisa izinga lokushisa elihlanganayo lama-LED, siqinisekise ukuphila kwe-LED, futhi senze imikhiqizo engabizi kakhulu sisebenzisa izindlela zokufaka isicelo..
Isikhathi sokuthumela: Oct-22-2020