Kwiminyaka yakutshanje, kunye nokuqhubela phambili ngokukhawuleza kweteknoloji ye-chip ye-LED, usetyenziso lwezorhwebo lwe-LED lukhulile kakhulu.Iimveliso ze-LED zaziwa ngokuba "yimithombo yokukhanya okuluhlaza" ngenxa yobukhulu bayo obuncinci, ukusetyenziswa kwamandla aphantsi, ubomi benkonzo ende, ukukhanya okuphezulu, ukukhuselwa kwendalo, ukuqina kunye nokuqina, kunye nezibane ezibalulekileyo zokulondoloza amandla.Ukusebenzisa i-ultra-bright kunye ne-high-power-power source ukukhanya kwe-LED, kunye nokunikezelwa kwamandla aphezulu, kunokugcina ngaphezu kwe-80% yombane kunezibane ze-incandescent zendabuko, kwaye ukukhanya kuphindwe ka-10 kwezibane ze-incandescent phantsi kwamandla afanayo.Ubomi obude bungaphezu kweeyure ezingama-50,000, nto leyo ephindaphindwe kangangama-50 kuneyezibane zemicu yetungsten eqhelekileyo.I-LED ithatha i-welding ephezulu ethembekileyo yokupakishwa kwe-eutectic, eqinisekisa ngokupheleleyo ubomi obude be-LED.Izinga elibonakalayo elikhanyayo linokuba phezulu kwi-80lm / W okanye ngaphezulu, iintlobo ezahlukeneyo zokushisa kwesibane se-LED zikhoyo, isalathisi sombala ophezulu, kunye nokunikezelwa kombala okulungileyo.Itekhnoloji ye-LED yentambo yokukhanya ye-LED iqhubela phambili ngosuku ngalunye oludlulayo, ukusebenza kwayo okukhanyayo kwenza impumelelo emangalisayo, kwaye ixabiso lihlala lincipha.Njengemveliso yokukhanyisa, ingene kumawaka ezindlu kunye nezitrato.
Nangona kunjalo, iimveliso zomthombo wokukhanya we-LED azikho naziphi na iintsilelo.Njengazo zonke iimveliso zombane, izibane ze-LED ziya kuvelisa ubushushu ngexesha lokusetyenziswa, okukhokelela ekonyukeni kobushushu bendawo kunye nobushushu bazo.I-LED ngumthombo wokukhanya oqinileyo kunye nendawo encinci ye-chip ekhupha ukukhanya kunye noxinano olukhulu lwangoku nge-chip ngexesha lokusebenza;ngelixa amandla e-chip enye ye-LED encinci, kwaye ukuphuma kwe-flux ekhanyayo kuphantsi.Ke ngoko, xa kusetyenziswa isixhobo sokukhanyisa, uninzi lwezibane zifuna Ukudityaniswa kwemithombo yokukhanya ye-LED emininzi yenza i-chip chip ye-LED ibe denser.Kwaye ngenxa yokuba izinga lokuguqulwa kwe-photoelectric yomthombo wokukhanya we-LED aliphezulu, kuphela malunga ne-15% ukuya kwi-35% yamandla ombane aguqulwa abe yimveliso yokukhanya, kwaye enye iguqulwa ibe amandla okushisa.Ngoko ke, xa inani elikhulu lemithombo yokukhanya ye-LED isebenza kunye, inani elikhulu lamandla okushisa liya kuveliswa.Ukuba obu bushushu abunakuchithwa ngokukhawuleza, kuya kubangela ukunyuka kobushushu bokukhanya komthombo wokukhanya kwe-LED, ukunciphisa iifotoni ezikhutshwa yichip, ukunciphisa umgangatho wobushushu bombala, ukukhawulezisa ukuguga kwetshiphu, kwaye bufutshane ubomi. yesixhobo.Ke ngoko, uhlalutyo lwe-thermal kunye noyilo oluchanekileyo lwesakhiwo sokutshatyalaliswa kobushushu kwizibane ze-LED zibaluleke kakhulu.
Ngokusekelwe kwiminyaka yamava ophuhliso lweemveliso ze-LED kushishino, inkqubo yethiyori yoyilo epheleleyo yenziwe.Njengomyili wesakhiwo semveliso yokukhanyisa, ilingana nokuma emagxeni eengxilimbela.Nangona kunjalo, asikuko ukuba kulula ukufikelela phezulu kumagxa eengxilimbela.Kukho iingxaki ezininzi ezifuna ukunqotshwa kuyilo lwemihla ngemihla.Ngokomzekelo, ngokwembono yeendleko, ekuyilweni, kuyimfuneko ukuhlangabezana neemfuno zokutshatyalaliswa kobushushu bemveliso, kodwa nokunciphisa iindleko;okwangoku, eyona ndlela ixhaphakileyo esetyenziswa kwimarike kukusebenzisa amaphiko e-aluminiyam ye-alloy yokutshabalalisa ubushushu.Ngale ndlela, benza njani abaqulunqi Ukumisela umgama wesithuba phakathi kwe-fin kunye ne-fin kunye nokuphakama kwe-fin, kunye nefuthe lesakhiwo semveliso kwi-airflow kunye nokuqhelaniswa kwendawo ekhupha ukukhanya, kuya kukhokelela ekugqithiseni ubushushu obungahambelaniyo.Ezi ziingxaki ezithwaxa abaqulunqi.
Kwinkqubo yoyilo lwezibane ze-LED, kukho iindlela ezininzi zokunciphisa ubushushu be-junction ye-LED kunye nokuqinisekisa ubomi be-LED: ① Yomeleza ukuqhuba kobushushu (kukho iindlela ezintathu zokudlulisa ubushushu: ukuhanjiswa kobushushu, ukutshintshiselana kobushushu kunye nokutshintshana kobushushu bemitha) , ②, khetha i-LED ephantsi yokumelana ne-thermal chips, ③, ngaphantsi komthwalo okanye ukulayisha ngaphezulu sebenzisa amandla alinganisiweyo okanye okwangoku e-LED (kuyacetyiswa ukuba usebenzise i-70% ~ 80% yamandla alinganisiweyo), enokunciphisa ngokufanelekileyo isiphambuka se-LED. ubushushu.
Emva koko ukomeleza ukuqhutywa kobushushu, singasebenzisa ezi ndlela zilandelayo: ①, indlela elungileyo yokulahla ubushushu;②, ukunciphisa ukunyanzeliswa kwe-thermal phakathi kwe-interface yofakelo ye-LED kunye ne-second dissipation mechanism;③, ukomeleza unxibelelwano phakathi kwe-LED kunye nendlela yokuchitha ubushushu yesibini Ukuhanjiswa kwe-thermal kumphezulu;④, uyilo lolwakhiwo kusetyenziswa umgaqo wokuhambisa umoya.
Ngoko ke, ukutshatyalaliswa kobushushu kuyisikhewu esingenakoyiswa kubaqulunqi bemveliso kwishishini lokukhanyisa kweli nqanaba.Ngeli xesha, ndiyakholelwa ukuba ngenkqubela phambili yoguquko lwetekhnoloji, impembelelo yokutshatyalaliswa kobushushu kwii-LEDs iya kuba ncinci kancinci.Kwakhona sizama ukufumana iindlela zokunciphisa ukushisa kwe-junction ye-LEDs, ukuqinisekisa ubomi be-LED, kunye nokwenza iimveliso ezingabizi kakhulu ngokusebenzisa iindlela zokusetyenziswa..
Ixesha lokuposa: Oct-22-2020