Namhlanje, ngophuhliso olukhawulezayo lwee-LEDs, ii-LED ezinamandla aphezulu zithatha ithuba lomzila.Okwangoku, eyona ngxaki inkulu yobugcisa bokukhanya kwe-LED yamandla aphezulu kukutshabalalisa ubushushu.Ukutshatyalaliswa kobushushu okungalunganga kukhokelela kumandla okuqhuba i-LED kunye ne-electrolytic capacitors.Ibe yibhodi emfutshane yophuhliso olongezelelweyo lokukhanyisa kwe-LED.Isizathu sokuguga kwangaphambili komthombo wokukhanya kwe-LED.
Kwiskimu sesibane usebenzisa umthombo wokukhanya we-LED, kuba umthombo wokukhanya we-LED usebenza kwi-voltage ephantsi (VF = 3.2V), i-high current (IF = 300-700mA) esebenzayo, ngoko ubushushu bunzima kakhulu.Indawo yezibane zendabuko incinci, kwaye kunzima kwi-radiator yendawo encinci ukuthumela ubushushu ngokukhawuleza.Nangona ukwamkelwa kweendlela ezahlukeneyo zokupholisa, iziphumo azinelisekanga, zibe zizibane zokukhanyisa i-LED ingxaki ngaphandle kwesisombululo.
Okwangoku, emva kokuba umthombo wokukhanya we-LED unikwe amandla, i-20% -30% yamandla ombane iguqulwa ibe amandla okukhanya, kwaye malunga ne-70% yamandla ombane aguqulwa abe yi-thermal energy.Ke ngoko, yitekhnoloji ephambili yoyilo lwesibane sesibane se-LED ukuthumela ngaphandle amandla obushushu amaninzi ngokukhawuleza.Amandla obushushu kufuneka abhujiswe ngokuqhutywa kobushushu, ukuhanjiswa kobushushu kunye nemitha yobushushu.
Ngoku makhe sihlalutye zeziphi izinto ezibangela ukwenzeka kobushushu obudibeneyo be-LED:
1. Ukusebenza kwangaphakathi kwezi zibini akukho phezulu.Xa i-electron idibaniswe nomngxuma, i-photon ayikwazi ukuveliswa i-100%, ngokuqhelekileyo iyanciphisa izinga lokudibanisa umthwali wengingqi ye-PN ngenxa "yokuvuza kwangoku".Amaxesha avuzayo angoku amandla ombane angamandla ale nxalenye.Okokuthi, iguqulela ekushiseni, kodwa le nxalenye ayithathi inxalenye ephambili, kuba ukusebenza kweefotoni zangaphakathi sele kusondele kwi-90%.
2. Akukho nanye yeefotoni ezenziwe ngaphakathi ezikwazi ukudubula ngaphandle kwe-chip, kwaye inxalenye yesizathu esikhulu sokuba oku ekugqibeleni kuguqulwe amandla okushisa kukuba oku, okubizwa ngokuba yi-external quantum effectiveness, kuphela malunga ne-30%, ininzi yayo iguqulelwe. ubushushu.
Ngoko ke, ukutshatyalaliswa kobushushu yinto ebalulekileyo echaphazela ukukhanya kwezibane ze-LED.I-heat sink inokusombulula ingxaki yokutshatyalaliswa kobushushu kwizibane ze-LED eziphantsi, kodwa i-heat sink ayikwazi ukusombulula ingxaki yokutshatyalaliswa kokushisa kwezibane zamandla aphezulu.
Izisombululo zokupholisa ze-LED:
Ukutshatyalaliswa kobushushu be-Led kuqala kuqala kwimiba emibini: ukutshatyalaliswa kobushushu be-Led chip ngaphambi nangemva kwephakheji kunye nokutshatyalaliswa kobushushu kwesibane se-Led.Ukutshatyalaliswa kobushushu be-LED kuhambelana ikakhulu ne-substrate kunye nenkqubo yokukhetha isiphaluka, kuba nayiphi na i-LED inokwenza isibane, ngoko ubushushu obuveliswa yi-chip ye-LED ekugqibeleni busasazwe emoyeni ngokusebenzisa indlu yesibane.Ukuba ubushushu abuchithwanga kakuhle, umthamo wobushushu we-chip ye-LED uya kuba mncinci kakhulu, ngoko ke ukuba ubushushu buqokelelwe, ubushushu bokudibanisa kwe-chip buya kwanda ngokukhawuleza, kwaye ukuba isebenza kwiqondo lokushisa eliphezulu ixesha elide. ubomi buya kucuthwa ngokukhawuleza.
Ngokuqhelekileyo, iiradiyetha zinokwahlulwa zibe ukupholisa okusebenzayo kunye nokupholisa okuzenzekelayo ngokwendlela yokususwa kobushushu kwi-radiator.I-Passive heat dissipation kukutshabalalisa ngokwendalo ubushushu bomthombo wobushushu bomthombo wokukhanya we-LED emoyeni nge-sink yobushushu, kwaye isiphumo sokutshabalalisa ubushushu silingana nobukhulu besinki yobushushu. Ukupholisa okusebenzayo kukuthabatha ngenkani ubushushu obukhutshwa sisinki yobushushu ngesixhobo sokupholisa esifana nefeni.Ibonakaliswe ngokusebenza kakuhle kokutshatyalaliswa kobushushu kunye nobukhulu obuncinci besixhobo.Ukupholisa okusebenzayo kunokwahlulwa ngokupholisa umoya, ukupholisa ulwelo, ukupholisa umbhobho wokushisa, ukupholisa kwe-semiconductor, ukupholisa imichiza kunye nokunye.
Ngokuqhelekileyo, ii-radiator ezipholileyo zomoya kufuneka zikhethe ngokwendalo isinyithi njengesixhobo seradiyetha.Ngoko ke, kwimbali yokuphuhliswa kwee-radiators, ezi zinto zilandelayo ziye zavela: i-radiator ecocekileyo ye-aluminium, i-radiator ecocekileyo yobhedu, kunye ne-teknoloji yokudibanisa i-copper-aluminium.
Ukusebenza kakuhle okukhanyayo kwe-LED kuphantsi, ngoko ke ubushushu obudibeneyo buphezulu, okukhokelela kubomi obufutshane.Ukuze ukwandise ubomi kunye nokunciphisa ubushushu bomdibaniselwano, kuyimfuneko ukubeka ingqalelo kwingxaki yokutshatyalaliswa kobushushu.