Amandla aphezulu IGBT Aluminium Heat Sink

Isilawuli sezimoto Esifakwe Isango Le-Bipolar Transistor (I-Insulated Gate Bipolar Transistor, i-IGBT) ukusebenza kokushisa kokushisa kuya ngokuya kuba yi-IGBT yemoto manje engena emakethe yezimboni zamandla kagesi, njengokuthi (welding) usinki wokushisa, i-traction inverter, i-motor drive, njll.I-Ruiqifenginikeza imikhiqizo yokuhlanganisa isinki wokushisa we-IGBT evumela i-IGBT ukuthi isebenze endaweni ebiyelwe ngezinga lokushisa eliphakeme kuyilapho igcina izinga lokushisa lendawo yokusebenza ngaphakathi kwebanga eliphephile ngokuhlanganisa ukumelana nokushisa okuphansi ne-Vce(on) silicon.

I-IGBT ezikhathini eziningi isebenza ngedivayisi yamandla aphezulu, amandla aphezulu asho ukuchithwa kokushisa okuphezulu, i-IGBT ibheke kumthamo omkhulu, imvamisa ephezulu, ukushayela kalula, ukulahlekelwa okuphansi, i-modular, ikhomba indlela yentuthuko, uma iqhathaniswa namanye amadivaysi kagesi kagesi, I-IGBT yokushisa yokushisa inokwethenjelwa okuphezulu, idrayivu elula, kulula ukuyivikela, ayikho isifunda se-buffer futhi imvamisa yokushintsha iphezulu, ngakho-ke i-IGBT yokushisa yokushisa emakethe ye-electronic iba kudingekile kakhulu.Ukuze kuzuzwe lokhu kusebenza okuphezulu, izinqubo eziningi zisetshenziswa kumasekethe ahlanganisiwe, njenge-epitaxy, ukufakelwa kwe-ion, i-lithography emihle, njll. Eminyakeni yamuva, ukusebenza kwe-module ye-IGBT yokushisa kwemodyuli kuye kwathuthukiswa ngokushesha, okwamanje okulinganiselwe ifinyelele emakhulwini ama-ampere, amandla okumelana namandla angaphezu kuka-1500V, futhi isathuthuka.Njengoba amadivaysi e-IGBT enezici ezinhle ze-PIN diode, izici zamandla we-p-channel IGBT module heat sink azihlukile kakhulu ku-n-channel IGBT, evumela kakhulu ukwamukela isakhiwo esihambisanayo esicelweni, ngaleyo ndlela sandise. ukusetshenziswa kwayo emkhakheni we-ac kanye nobuchwepheshe bokulawula idijithali.Inzuzo enkulu ye-IGBT ukuthi ingakwazi ukumelana nokushaqeka kwamanje kusimo sokuvula noma esifushane.Ukuxhumeka kwayo okuhambisanayo akuyona inkinga futhi ukuxhumeka kwayo kochungechunge kulula ngenxa yokulibaziseka kwayo okufushane.

Izindlela zokudlulisa ukushisa kwe-IGBT ngokuvamile zihlanganisa ukupholisa komoya, ukupholisa amanzi, usinki wokushisa wethusi noma usinki wokushisa we-aluminium.Ukukhishwa kwayo kokushisa kusekelwe esimisweni esiyisisekelo sokudlulisa ukushisa, indlela yokugeleza kokushisa enokumelana okuphansi kakhulu kwe-thermal yenzelwe idivayisi ukuze ukushisa okukhishwa idivayisi kukhishwe ngokushesha ngangokunokwenzeka, ukuze kuqinisekiswe ukuthi ngaphakathi. Izinga lokushisa lokuhlangana kwedivayisi lihlala ligcinwa ngaphakathi kwezinga lokushisa elivumelekile lokuhlangana.

Njengamanje, i-IGBT ekhona yokushisa ipayipi yokushisa emakethe ikakhulukazi ihlanganisa i-fin yokushisa ukushisa, ipayipi lokushisa kanye ne-substrate, lapho i-substrate inikezwa inani lemifantu ehambisanayo, bese i-groove ihlanganiswe nge-solder engxenyeni ehwamukayo. ipayipi lokushisa.Kubuchwepheshe obukhona bepayipi lokushisa lepayipi le-IGBT lokushisa, ingxenye ehwamukayo yepayipi yokushisa ingcwatshwa emgodini we-substrate futhi ayilingani ngokuqondile nendawo ye-IGBT.Enqubweni yokusebenza, ukushisa okuvela endaweni ye-IGBT kuqala kuthunyelwa ngaphandle nge-substrate bese kudluliselwa epayipini lokushisa kanye nosinki wokushisa.Ekugcineni, ukushisa okuvela kusinki wokushisa kudluliselwa emoyeni nge-convection.Ngenxa yokuthi i-substrate ngokwayo inokumelana nokushisa, futhi i-coefficient ye-thermal conductivity yepayipi yokushisa iphakeme kakhulu kunesisekelo, ukusebenza kahle kwe-thermal conductivity yokushisa kwepayipi yokushisa kunqunyelwe, futhi ukusebenza kokushisa kokushisa kuyancishiswa.I-IGBT yokushisa yokushisa ingadlulisa ukushisa ngokulinganayo ukusuka ku-substrate kuya ekugcineni, okungaxazulula ngokuphumelelayo inkinga yokushisa ukushisa kokushisa okuphezulu, hhayi nje kuphela ngokusebenza kahle kakhulu kodwa futhi nesakhiwo esihlangene futhi akukho zingxenye ezihambayo, ezingaqaphela ngempela ukugcinwa- mahhala.