Ukubaluleka kokukhipha ukushisa kuma-LEDsï¼

Ingabe ukukhishwa kokushisa kubalulekile kuma-LED?

Ngokwezinga lokushisa, ama-LED avame ukubizwa ngokuthi yimithombo yokukhanya "ebandayo". Lokhu kungenxa yokuthi ukuphuma kwe-spectral kwama-LED asetshenziselwa ukukhanyisa akuqukethe imisebe ye-infrared, ehlukile kwezibani ze-incandescent ezikhiqiza ukukhanya okuningi kwe-infrared (yebo, amanye ama-LED asetshenziselwa izinjongo zokukhiqiza aklanyelwe ukukhiqiza amandla e-infrared, kodwa kule ncwadi La mandla akucatshangwa)). Ama-LED abuye abhekwe "njengamakhaza" ngoba akhipha ukukhanya ngezinye izindlela ngaphandle kwe-thermal excitation of substance (njenge-tungsten filaments incandescent lamp). Nakuba isistimu yokukhanyisa i-LED ingakukhiqizi ukushisa okukhazimulayo okuningi, i-LED isakhiqiza ukushisa endaweni ehlanganayo, okufanele ichithwe yi-convection kanye ne-convection. Sebenzisa izindlela ezilandelayo ukumunca ukushisa okuvela kurediyetha yedivayisi futhi uzuze ukukhanya okuphezulu okukhiphayo nempilo ende yedivayisi ngokusebenzisa i-LED ezingeni lokushisa eliphansi le-ambient.

Kokunye, isibani se-LED sihlanganisa: usinki wokushisa ohlanganisa umugqa wama-fins obala endaweni eyodwa; kanye nelungu le-conductive eliphambene ne-fin, ilungu le-conductive elihlanganisa ama-electrode amabili e-Side positive axhumeke ngogesi, ama-electrode ayi-negative eyodwa noma ngaphezulu ahlukaniswe ku-electrode ephozithivu futhi ahlukaniswe ahlukaniswe phakathi kwe-electrode ephozithivu, kanye nomcu owodwa noma ngaphezulu wokumisa indawo ngayinye phakathi kwe-electrode eyinegethivu kanye ne-positiveelectrode. ; i-array ekhipha ukukhanya efakwe ku-conductive Izingxenye zihlanganisa imigqa yama-LED. Lawa ma-LED ahlukaniswe ngamaqembu axhunywe ngokuhambisana.Ama-LED eqembu ngalinye axhunywe ngogesi ochungechungeni. I-LED ngayinye ihlanganisa imikhondo eqondile nengalungile egxilwe kubha yokubeka indawo futhi exhunywe ngogesi kunoma iyiphi i-electrode ephozithivu. I-electrode yonyawo kanye ne-electrode enegative, umqhubi we-electrode omuhle, axhunywe ngogesi kunoma iyiphi i-electrode enhle; i-electrode eyinegethivu ixhunywe ngogesi ku-electrode engemihle.

Uma ufaka lezi zinhlelo ezinhlelweni zokusebenza, isidingo sokuqinisekisa ukushiswa kokushisa kwesistimu ye-LED nakho kubalulekile. Kumelwe kube nendlela eyanele yokukhipha ukushisa kude nesistimu, noma yokufaka umoya nge-convection ukupholisa indawo eshisayo. Ukubeka uhlelo lokukhanyisa lwe-LED endaweni evalekile futhi encane ngokuqhathaniswa kungase kubangele ukukhuphuka okusheshayo kwezinga lokushisa lokuhlangana nokusebenza kabi.