Idatha efunyenwe kukukhanya okumhlophe kwe-LED kwibhodi yokuguga, umboniso ongafihliyo kunye nedatha efunyenwe xa ukukhanya okumhlophe kwe-LED kuhlanganiselwe kwisikhanyiso ngokuqinisekileyo kuyinto encinci yengeniso.
Ubungakanani balo mahluko buxhomekeke kwiiparamitha zombane zomsebenzi we-LED kunye noyilo lwesikhanyiso, kunye nokusingqongileyo apho kusetyenziswa khona ukukhanya.
Okokuqala, luhlobo luni lokukhanya okumhlophe kwe-LED olukhethiweyo.
Oku kubaluleke kakhulu, umgangatho wokukhanya okumhlophe kwe-LED kunokuthiwa yinto ebaluleke kakhulu. Kweminye yemizekelo, i-chip efanayo ye-14mil emhlophe ekhanyayo isetyenziswa njengommeli, kunye nesibane esimhlophe esimhlophe esifakwe yi-epoxy resin ngokubanzi kunye neglu emhlophe kunye neglu yephakheji ikhanyisiwe kwindawo enamaqondo angama-30. Emva kweeyure ezili-1000, idatha yokuncipha yi-70% yokubola kokukhanya; ukuba ipakishwe nge-D-type-resistant-resistant glue, kwindawo efanayo yokuguga, ukubola kokukhanya yi-45%; ukuba i-C-type-resistant-resistant glue ipakishwe, kwimeko efanayo yokuguga. Ukuba uhlobo lwe-B olunamafutha asezantsi lubotshiwe, kwimeko efanayo yokuguga, ukubola kokukhanya kwewaka elincinci ngu -3%; ukuba iglu ekumgangatho ophantsi yohlobo A, kwindawo efanayo yokuguga, iwaka elinqabileyo elincinane lokubola ukuya -6%.
Kutheni le nto iinkqubo ezahlukeneyo zokupakisha zikhokelela kwiyantlukwano enkulu?
Esinye sezizathu eziphambili kukuba iichips ze-LED zoyika ubushushu. Ngamaxesha athile, ubushushu budlula ngaphezulu kwekhulu leedigri ngexesha elifutshane, akunamsebenzi, esoyika ukuba kuya kuba phantsi kobushushu obuphezulu ixesha elide, kuyingozi enkulu kwi-chip ye-LED.
Ngokubanzi, ukuhanjiswa kwe-thermal ye-epoxy resin kuhlala kuncinci. Ke ngoko, xa i-chip ye-LED ikhanyisiwe, i-chip ye-LED ikhupha ubushushu, kwaye i-epoxy resin iyonke ine-conductivity eshushu ye-thermal, ke xa uvela kwisibane esimhlophe se-LED ngaphandle, iqondo lobushushu le-LED liphathwa nge-45 degrees, kwaye ubushushu obumbindi be-chip kwi-LED emhlophe bunokugqitha kuma-80 degrees. Ubushushu be-node ye-LED ngenene ngama-80 degrees. Ke, xa i-chip ye-LED iqhutywa kubushushu be-junction, ithuthunjiswa kakhulu, ekhawulezisa ukuguga kokukhanya okumhlophe kwe-LED.
Xa i-chip ye-LED isebenza, iqondo lobushushu embindini livelisa iqondo lobushushu eliphezulu leedigri ezili-100, kwaye umboniso ongafihlisiyo unokukhulula ubushushu kwangoko ngepini yesibiyeli engama-98%, ngaloo ndlela kuncitshiswe ukonakala kobushushu. Ke ngoko, xa ubushushu be-bracket ekhanyayo emhlophe engama-60 degrees, iqondo lobushushu be-chip inokuba ngama-61 kuphela.
Kuyabonakala kwidatha engentla ukuba ukukhanya okumhlophe kwe-LED kwenkqubo yokupakisha kukhethwe ukumisela ngokuthe ngqo imeko yokubola kokukhanya kwesibane se-LED.
Ixesha lokuposa: Oct-17-2019