Hanyoyin warware matsalar zafi na LED
3. 1 Substrate selection tare da mai kyau thermal watsin
Zaɓi abubuwan da ke da kyakkyawan yanayin zafi, irin su Al-based karfe core printed allon allo (MCPCBs), yumbu, da kayan aikin ƙarfe masu haɗaka, don haɓaka ɓarkewar zafi daga layin epitaxial zuwa madaidaicin madaurin zafi. Ta hanyar haɓaka ƙirar thermal na hukumar MCPCB, ko haɗa yumbu kai tsaye zuwa ƙarfen ƙarfe don samar da yumbu mai ƙarancin zafin jiki (LTCC2M), za'a iya samun madaidaicin ma'aunin zafi mai kyau da ƙaramin haɓakar haɓakar thermal. .
3.2 Sakin zafi akan substrate
Don yada zafi a kan substrate zuwa yanayin da ke kewaye da shi da sauri, a halin yanzu, ana amfani da kayan ƙarfe tare da kyakkyawan yanayin zafi irin su Al da Cu a matsayin maƙallan zafi, da kuma sanyaya tilastawa kamar fanfo da madauki zafi bututu. Ko da farashi ko bayyanar, na'urorin sanyaya na waje ba su dace da hasken LED ba. Saboda haka, bisa ga ka'idar kiyaye makamashi, yin amfani da yumburan piezoelectric a matsayin zafi mai zafi don canza zafi zuwa rawar jiki da kuma cinye makamashin zafi kai tsaye zai zama daya daga cikin abubuwan da za a mayar da hankali ga bincike na gaba.
3.3 Hanyar rage juriya na thermal
Don na'urorin LED masu ƙarfi, jimlar juriya ta thermal ita ce jimlar juriyar zafin zafin zafi da yawa akan hanyar zafi daga mahadar pn zuwa yanayin waje, gami da juriyar yanayin zafi na ciki na LED da kanta da zafin ciki. nutse zuwa allon PCB. Juriya na thermal na manne na thermally conductive, da thermal juriya na thermal conductive manne tsakanin PCB da na waje zafi nutse, da thermal juriya na waje zafi nutse, da dai sauransu, kowane zafi nutse a cikin zafi canja wurin kewaye zai haifar da wasu. cikas ga zafi canja wuri. Sabili da haka, rage yawan magudanar zafi na ciki da kuma amfani da tsarin fim na bakin ciki don samar da mahimman bayanai masu mahimmanci na lantarki zafi nutsewa da kuma rufin yadudduka a kan ramin zafi na karfe na iya rage yawan juriya na thermal. Wannan fasaha na iya zama LED mai ƙarfi a nan gaba. Babban jagora na kunshin watsar da zafi.
3.4 Dangantaka tsakanin juriya na thermal da tashar watsawar zafi
Yi amfani da tashar watsa zafi mafi guntu. Tsawon tashar watsawar zafi, mafi girman juriya na thermal kuma mafi girman yiwuwar kwalabe na thermal.