Izindlela zokuxazulula ukuchithwa kokushisa kwe-LED
3. 1 Ukukhethwa kwe-substrate ene-conductivity enhle yokushisa
Khetha ama-substrates ane-conductivity enhle eshisayo, njengamabhodi wesekethe e-Al-based metal core printed circuit (MCPCBs), izitsha zobumba, nama-substrates ensimbi ayinhlanganisela, ukusheshisa ukunqanyulwa kokushisa kusukela kungqimba lwe-epitaxial kuya ku-substrate yesinki yokushisa. Ngokuthuthukisa idizayini eshisayo yebhodi le-MCPCB, noma ukuhlanganisa ngokuqondile izitsha zobumba endaweni engaphansi yensimbi ukuze kwakheke i-substrate yensimbi esekelwe emazingeni okushisa aphansi e-sintered ceramic (LTCC2M), i-substrate ene-thermal conductivity enhle kanye ne-coefficient encane yokunweba okushisayo ingatholakala. .
3.2 Ukukhishwa kokushisa ku-substrate
Ukuze usakaze ukushisa ku-substrate endaweni ezungezile ngokushesha, okwamanje, izinto zensimbi ezine-conductivity enhle ye-thermal ezifana ne-Al ne-Cu zivame ukusetshenziswa njengamasinki okushisa, futhi ukupholisa okuphoqelekile okufana nabalandeli namapayipi okushisa kwe-loop ayengeziwe. Ngaphandle kwezindleko noma ukubukeka, amadivaysi okupholisa angaphandle awafanele ukukhanyisa kwe-LED. Ngakho-ke, ngokomthetho wokongiwa kwamandla, ukusetshenziswa kwezitsha zobumba ze-piezoelectric njengesitsha sokushisa ukuguqula ukushisa kube ukudlidliza futhi kudle amandla okushisa ngokuqondile kuzoba enye yezinto okugxilwe kuzo ocwaningweni lwangomuso.
3.3 Indlela yokunciphisa ukumelana nokushisa
Ngamadivaysi e-LED anamandla amakhulu, ukumelana nokushisa okuphelele kuyisamba sokumelana nokushisa kwamasinki amaningana okushisa endleleni yokushisa ukusuka ku-pn junction kuya endaweni engaphandle, okuhlanganisa ukumelana nokushisa kwangaphakathi kokushisa kwe-LED ngokwayo kanye nokushisa kwangaphakathi. shona ebhodini le-PCB. Ukumelana nokushisa kweglue ehambisa ukushisa okushisayo, ukumelana nokushisa kweglue ehambisa ukushisa phakathi kwe-PCB nosinki wokushisa wangaphandle, kanye nokumelana nokushisa kwe-sink yangaphandle yokushisa, njll., usinki ngamunye wokushisa kumjikelezo wokudlulisa ukushisa kuzodala okuthile. izithiyo zokudlulisa ukushisa. Ngakho-ke, ukunciphisa inani lamasinki okushisa angaphakathi nokusebenzisa inqubo yefilimu emincane ukukhiqiza ngokuqondile isikhombimsebenzisi esibalulekile samasinki okushisa e-electrode kanye nezingqimba zokufakwa kumshini wokushisa wensimbi kunganciphisa kakhulu ukumelana nokushisa okuphelele. Lobu buchwepheshe bungase bube yi-LED enamandla amakhulu ngokuzayo. Isiqondiso esivamile sephakheji yokukhipha ukushisa.
3.4 Ubudlelwano phakathi kokumelana nokushisa kanye nesiteshi sokukhipha ukushisa
Sebenzisa ishaneli emfushane kakhulu yokuchitha ukushisa. Uma umzila wokukhipha ukushisa isikhathi eside, kukhulu ukumelana nokushisa kanye nethuba lokuvimba ukushisa okukhulu.