1.Ukukhethwa kwe-thyristor kuthotho kunye nesekethe ye-resonant parallel
Xa i-thyristors isetyenziselwa uchungechunge kunye nesekethe ye-resonant parallel, i-pulse yesango yokuqalisa isango kufuneka ibe yomelele, yangoku kunye ne-voltage kufuneka ilingane, kunye neempawu zokuqhuba kunye nokubuyisela izixhobo kufuneka zikhethwe ngokusebenza okufanayo.Ngokukodwa ukuba izixhobo zisebenza nge-di/dt ephezulu yesekethe ye-inverter kuthotho, iimpawu zokubuyisela umva zidlala indima enkulu ekulinganiseni amandla ombane aguqukayo.
2.I-Assembly ye-heat sink kunye nesixhobo
Indlela yokupholisa yeendibano ibandakanya ukupholisa kwendalo kunye ne-heat sink, ukupholisa umoya okunyanzelekileyo kunye nokupholisa kwamanzi.Ukuze isixhobo sisebenzise ukusebenza okulinganiselwe ngokuthembekileyo kwisicelo, kuyimfuneko ukukhetha efanelekileyoamanzi okupholisa heatsinkkwaye uyidibanise nesixhobo ngokufanelekileyo.Enjalo ukuqinisekisa ukuxhathisa thermal Rj-hs phakathi isinki ubushushu kunye thyristor / diode chip idibana imfuneko yokupholisa.Imilinganiselo kufuneka ithathelwe ingqalelo ngolu hlobo lulandelayo:
2.1 Indawo yoqhagamshelwano ye-heat sink kufuneka ihambelane nobukhulu besixhobo ukunqanda ukutyunjwa okanye ukugoba komonakalo wesixhobo.
2.2Umcaba kunye nokucoceka kwendawo yokudibanisa i-heat sink kufuneka igqitywe kakhulu.Kucetyiswa ukuba uburhabaxa bomphezulu bombhobho wobushushu bungaphantsi okanye bulingana no-1.6μm, kwaye ukucaba kungaphantsi okanye kulingane ne-30μm.Ngexesha lokudibanisa, indawo yoqhagamshelwano yesixhobo kunye ne-heat sink kufuneka ihlale icocekile kwaye ingenayo ioli okanye enye inkunkuma.
2.3Qinisekisa ukuba indawo yoqhagamshelwano yesixhobo kunye nesinki yobushushu ingqamene kwaye igxile.Ngethuba lokuhlanganisana, kuyimfuneko ukusebenzisa uxinzelelo ngokusebenzisa i-centerline yecandelo ukwenzela ukuba i-press force isasazwe ngokulinganayo kuyo yonke indawo yoqhagamshelwano.Ekuhlanganiseni ngesandla, kucetyiswa ukuba kusetyenziswe i-torque wrench ukuze kufakwe amandla kunye nawo onke amantongomane aqinisiweyo, kwaye uxinzelelo kufuneka luhlangabezane nedatha ecetyiswayo.
2.4Nceda unike ingqwalaselo ethe kratya ukujonga indawo yoqhagamshelwano icocekile kwaye ithe tyaba ukuba uphinde usebenzise isinki yobushushu yokupholisa amanzi.Qinisekisa ukuba akukho sikali okanye ukuvaleka kumngxuma webhokisi yamanzi, kwaye ngakumbi akukho kugoba kwindawo yoqhagamshelwano.
2.5 Umzobo wendibano yesinki yokupholisa ubushushu bamanzi
Umba obaluleke kakhulu wokuqinisekisa ukusebenza okuthembekileyo kwesekethe kukukhetha isixhobo esifanelekileyo kunye ne-heat sink.Iamandla aphezulu capsule thyristorkunye ne-diode eyenziwe yi-Runau Semiconductor ikhanya kakhulu kwizicelo ze-frequency line.Amandla ombane abonakalisiweyo avela kwi-400V ukuya kwi-8500V kunye noluhlu lwangoku ukusuka kwi-100A ukuya kwi-8KA.Igqwesileyo kwi-pulse eyomeleleyo yesango lokuvusa, ibhalansi entle yokuqhuba kunye neempawu zokubuyisela.Isitya sokupholisa amanzi sokupholisa siyilwe kwaye senziwa ngamaziko e-CAD kunye ne-CNC.Kuyanceda ukuphucula ukusebenza kwezixhobo.
Ixesha lokuposa: Apr-07-2022