Ubudlelwane phakathi koMbala weMagnetic Ring kunye nemathiriyeli | PHILA

Izangqa ezininzi ezinozibuthe kufuneka zipeyintwe ukuququzelela umahluko. Ngokubanzi, intsimbi yomgubo wentsimbi yahlulwa ngemibala emibini, njengobomvu / obala, omthubi / obomvu, oluhlaza / obomvu, oluhlaza / oluhlaza okwesibhakabhaka kunye notyheli / omhlophe, amakhonkco angundoqo wemanganese apeyintwe ngokuluhlaza, intsimbi, isilicon kunye nealuminium ngokubanzi zimnyama. , kwaye nangokunjalo. Enyanisweni, umbala wendandatho yamagnetic emva kokudubula akunanto yakwenza nepeyinti yokudaya emva kokutshiza, sisivumelwano nje kwishishini. Ngokomzekelo, uhlaza lubonisa i-ring magnetic conductivity ephezulu; Imibala emibini imele intsimbi; emnyama imele intsimbi-silicon-aluminiyam i-ring magnetic njalo njalo.

Umsesane ophakamileyo wemagnetic conductivity

I-Magnetic ring inductor , kufuneka nithi i-Ni-Zn ferrite magnetic ring. Amakhonkco amagnetic ahlulwe abe yi-Ni-Zn kunye ne-mn-Zn ngokwezinto ezibonakalayo. I-permeability ye-Ni-Zn ferrite rings iyahluka ukusuka kwi-15 ukuya ku-2000. Izinto ezisetyenziswa ngokuqhelekileyo ziyi-Ni-Zn ferrites kunye ne-permeability phakathi kwe-100 kunye ne-1000. Ngokutsho kokuhlelwa kwe-permeability, i-Ni-Zn ferrites ihlukaniswe kwizinto eziphantsi zokungena. I-permeability ye-mn-Zn ferrite magnetic rings ngokuqhelekileyo ingaphezulu kwe-1000, ngoko imisesane yamagnetic eveliswa yi-mn-Zn ferrites ibizwa ngokuba ngamakhonkco aphezulu e-conductivity.

Amakhonkco e-Ni-Zn ferrite asetyenziswa ngokubanzi ukulwa nokuphazamiseka kuzo zonke iintlobo zeengcingo, iziphelo zebhodi yesekethe kunye nezixhobo zekhompyuter. Amakhonkco e-Mn-Zn ferrite angasetyenziselwa ukwenza ii-cores, iintloko kunye neentonga ze-antenna ze- inductors , ii-transformers kunye nezihlungi. Ngokubanzi, okukhona kusezantsi ukungeneka kwezinto, kokukhona ububanzi boluhlu olusebenzayo olusebenzayo; okukhona kuphezulu ukungeneka kwezinto, kokukhona kucutha uluhlu olusebenzayo lwamaza.

Intsimbi engumgubo wentsimbi

I-iron powder core ligama elidumileyo le-magnetic iron oxide, esetyenziswa kakhulu kwiisekethe zombane ukusombulula ingxaki yokuhambelana kwe-electromagnetic (EMC). Kwisicelo esisebenzayo, iintlobo zezinye izinto ziya kongezwa ngokweemfuno ezahlukeneyo zokuhluza kwiibhendi ezahlukeneyo.

Undoqo wokuqala womgubo wemagnethi yayiyintsimbi "edibeneyo" yentsimbi ethambileyo ecinezelwe yi-iron-silicon-aluminiyam alloy powder magnetic. Olu hlobo lwe-iron-silicon-aluminiyam i-powder core luhlala lubizwa ngokuba yi "iron powder core". Inkqubo yokulungiswa kwayo okuqhelekileyo ngolu hlobo lulandelayo: i-powder magnetic ye-Fe-Si-Al alloy ihlanjululwe yi-ball milling kwaye ifakwe nge-insulating layer ngendlela yekhemikhali, emva koko malunga ne-15wt% i-binder yongezwa, ixutywe ngokulinganayo, ibunjwe kwaye iqiniswe, kunye nemveliso. yenziwa ngonyango lobushushu (uxinzelelo loxinzelelo) emva Z. Le yemveli "intsimbi powder core" imveliso ikakhulu usebenza 20kHz umgubo 200kHz. Ngenxa yokuba banoxinzelelo oluphezulu lwe-saturation flux, umgangatho ongcono we-DC superposition, i-magnetostrictive coefficient kufutshane ne-zero, akukho ngxolo, uzinzo olulungileyo lwefrikhwensi kunye nomgangatho ophezulu wokusebenza ukuya-kwixabiso kune-ferrites esebenza kwibhendi enye yamaza, zisetyenziswe ngokubanzi kwi-elektroniki. amacandelo afana ne-high-frequency electronic transformers. Ububi babo kukuba izigcwalisi ezingezizo-magnetic azivelisi nje ukuhlambuluka kwamagnetic, kodwa ziphinde zenze indlela ye-flux iyeke, kwaye i-demagnetization yendawo ikhokelela ekwehleni kokungena.

Undoqo wentsimbi osebenza kakhulu ophuhliswe mva nje ngu-Z wahlukile kumbindi we-iron-silicon-aluminum magnetic magnetic, into ekrwada esetyenzisiweyo ayisiyiyo ingxubevange engumgubo wamagnetic kodwa yintsimbi ecocekileyo egqunywe ngomaleko wokugquma, kwaye ubungakanani be-binder bukhulu kakhulu. encinci, ngoko ke ukuxinana kwemagnethi kuphuculwe kakhulu. Basebenza phakathi kunye nebhendi yamaza aphantsi ngaphantsi kwe-5kHz, ngokuqhelekileyo amakhulu ambalwa e-hertz, oko kukuthi, ngaphantsi kakhulu kunokusebenza rhoqo kwe-Fe-Si-Al yomgubo wemagnethi. Imakethi ekujoliswe kuyo kukutshintsha ishidi lentsimbi yesilicon esetyenziswa kwimoto ngenxa yelahleko ephantsi, ukusebenza kakuhle okuphezulu kunye noyilo olunemilinganiselo emithathu elula.

Fe-Si-Al ring magnetic

I-Fe-Si-Al magnetic ring yenye yezangqa ezinozibuthe ezinokusetyenziswa okuphezulu. Ukuyibeka ngokulula, i-Fe-Si-Al yenziwe yi-Al-Si-Fe kwaye ine-Bmax ephezulu kakhulu (i-Bmax yi-avareji ye-Z enkulu yoxinaniso lwe-flux kwindawo enqamlezileyo yombindi.). Ilahleko yayo engundoqo iphantsi kakhulu kunaleyo ye-iron powder core kunye ne-flux ephezulu, ine-magnetostriction ephantsi (ingxolo ephantsi), yinto yokugcina amandla exabiso eliphantsi, ayinakuguga kwe-thermal, ingasetyenziselwa ukutshintsha i-iron powder core, kunye nokusebenza kwayo. uzinzile kakhulu kubushushu obuphezulu.

Uphawu oluphambili lwe-Fe-Si-Al Z kukuba inelahleko ephantsi kune-iron powder core kwaye ineempawu ezilungileyo ze-DC zangoku. Ixabiso alikho i-Z ephezulu, kodwa ayikho i-Z ephantsi, xa kuthelekiswa ne-iron powder core kunye ne-iron nickel molybdenum.

I-Fe-Si-Al i-powder core ineempawu ezintle zemagneti, ukulahlekelwa kwamandla aphantsi kunye noxinzelelo oluphezulu lwe-flux. Inokuthembeka okuphezulu okufana nokumelana nobushushu, ukuxhathisa ukufuma kunye nokumelana nokungcangcazela xa isetyenziswa kuluhlu lobushushu obuyi-55C ~+125C.

Ngexesha elifanayo, uluhlu olubanzi lwe-permeability ye-60 ukuya kwi-160 lukhoyo. Lolona khetho lulungileyo lokukhutshwa kwemveliso, i-PFC inductors kunye ne-resonant inductors yokutshintshela umbane, kwaye inomlinganiselo ophezulu wokusebenza ukuya kwixabiso.

Oku ngasentla kukwaziswa kobudlelwane phakathi kombala wesangqa samagnetic kunye nezinto eziphathekayo. Ukuba ufuna ukwazi ngakumbi malunga ne-inductors, nceda uzive ukhululekile ukuqhagamshelana nathi.