Ubudlelwano phakathi Kombala Wendandatho Yezibuthe nezinto ezibonakalayo | ULULAME

Izindandatho eziningi kazibuthe zidinga ukupendwa ukuze kube lula ukuhlukanisa. Ngokuvamile, izindandatho zensimbi zensimbi zihlukaniswa ngemibala emibili, njengobomvu / obala, ophuzi / obomvu, oluhlaza okotshani / obomvu, oluhlaza okotshani / oluhlaza okwesibhakabhaka nophuzi / omhlophe, izindandatho ze-manganese core ngokuvamile zidwetshwe ngokuluhlaza, insimbi, i-silicon ne-aluminium ngokuvamile zimnyama. , njalo njalo. Eqinisweni, umbala wendandatho kazibuthe ngemva kokudubula awuhlangene nokudaya upende ngemva kokufafaza, kuyisivumelwano nje embonini. Ngokwesibonelo, oluhlaza imele high kazibuthe conductivity indandatho; imibala emibili imelela indandatho kazibuthe; black imele iron-silicon-aluminium magnetic indandatho nokunye.

Indandatho ephakeme kazibuthe

I -Magnetic ring inductor , kufanele usho indandatho kazibuthe ye-Ni-Zn ferrite. Izindandatho zikaZibuthe zihlukaniswe zibe i-Ni-Zn kanye ne-mn-Zn ngokwezinto ezibonakalayo. I-permeability yezindandatho ze-Ni-Zn ferrite ziyahlukahluka kusuka ku-15 kuya ku-2000. Izinto ezisetshenziswa kakhulu yi-Ni-Zn ferrite ezinokungena phakathi kwe-100 ne-1000. Ngokuhlukaniswa kwe-permeability, ama-Ni-Zn ferrite ahlukaniswe abe yizinto eziphansi zokungena. Ukufinyeleleka kwezindandatho kazibuthe ze-mn-Zn ferrite ngokuvamile zingaphezu kuka-1000, ngakho izindandatho kazibuthe ezikhiqizwa ama-mn-Zn ferrite zibizwa ngokuthi izindandatho eziphezulu ze-conductivity.

Amasongo e-Ni-Zn ferrite ngokuvamile asetshenziselwa ukulwa nokuphazamiseka kuzo zonke izinhlobo zezintambo, iziphetho zebhodi lesifunda kanye nemishini yekhompyutha. Izindandatho ze-Mn-Zn ferrite zingasetshenziswa ukwenza ama-cores, amakhanda nezinti ze-antenna zama- inductors angenye , ama-transformer nezihlungi. Ngokuvamile, ukuncishiswa kokungena kwempahla, kuba banzi ububanzi befrikhwensi obusebenzayo; ukuphakama kokungeneka kokokusebenza, kuyancipha ububanzi befrikhwensi obusebenzayo.

I-iron powder core indandatho kazibuthe

I-iron powder core igama elidumile le-iron oxide yensimbi, esetshenziswa kakhulu kumasekhethi kagesi ukuxazulula inkinga yokuhambisana kwe-electromagnetic (EMC). Ekusetshenzisweni okungokoqobo, izinhlobonhlobo zezinye izinto zizongezwa ngokuya ngezidingo zokuhlunga ezihlukene kumabhendi ahlukene.

I-powder yokuqala kazibuthe yayiwumgogodla "ohlanganisiwe" wensimbi othambile ocindezelwa yi-iron-silicon-aluminium alloy magnetic powder. Lolu hlobo lwe-iron-silicon-aluminium powder core luvame ukubizwa ngokuthi "i-iron powder core". Inqubo yayo evamile yokulungiselela imi kanje: impushana kazibuthe ye-Fe-Si-Al alloy incishiswa ngokugaya ibhola futhi imbozwe nge-insulating layer ngendlela yamakhemikhali, bese ihlanganisa i-binder engu-15wt%, ixutshwe ngokulinganayo, ibunjwe futhi iqiniswe, kanye nomkhiqizo. wenziwa ukwelashwa ngokushisa (ukunciphisa ukucindezeleka) ngemva kwe-Z. Lo mkhiqizo wendabuko "we-iron powder core" usebenza ikakhulukazi ku-20kHz powder 200kHz. Ngenxa yokuthi ane-saturation flux density ephakeme kakhulu, isici esingcono kakhulu se-DC superposition, i-magnetostrictive coefficient eseduze noziro, akukho msindo, ukuzinza okuhle kwefrikhwensi kanye nesilinganiso esiphakeme sokusebenza kuya kwentengo kunama-ferrite asebenza kubhendi yefrikhwensi efanayo, asetshenziswe kabanzi ku-elekthronikhi. izingxenye ezifana ne-high-frequency electronic transformers. Ububi babo ukuthi izigcwalisi ezingezona kazibuthe azikhiqizi kuphela ukuhlanjululwa kazibuthe, kodwa futhi zenza indlela ye-flux ingaqhubeki, futhi i-demagnetization yendawo iholela ekwehleni kokungena.

I-iron powder core esebenza kahle kakhulu eyakhiwe yi-Z muva nje ihlukile kune-iron-silicon-aluminium magnetic powder core yendabuko, impahla eluhlaza esetshenziswayo akuyona i-alloy magnetic powder kodwa i-iron emsulwa eyimpushana embozwe nge-insulating layer, futhi inani le-binder likhulu kakhulu. encane, ngakho-ke ukuminyana kwe-magnetic flux kuye kwathuthukiswa kakhulu. Basebenza phakathi nebhendi yefrikhwensi engaphansi kuka-5kHz, ngokuvamile i-hertz engamakhulu ambalwa, okungukuthi, ephansi kakhulu kune-frequency yokusebenza ye-Fe-Si-Al magnetic powder core. Imakethe okuhloswe ukuthi ithathelwe indawo ishidi lensimbi ye-silicon esetshenziswa emotweni ngenxa yokulahleka kwayo okuphansi, ukusebenza kahle okuphezulu futhi kulula ukwenza ukwakheka okunezinhlangothi ezintathu.

Indandatho kazibuthe ye-Fe-Si-Al

I-Fe-Si-Al magnetic ring ingenye yezindandatho kazibuthe ezisetshenziswa kakhulu. Ukukubeka kalula, i-Fe-Si-Al yenziwe i-Al-Si-Fe futhi ine-Bmax ephakeme kakhulu (i-Bmax isilinganiso esingu-Z esikhulu sokuminyana endaweni ephakathi nendawo.). Ukulahlekelwa kwayo okuyinhloko kuphansi kakhulu kunomgogodla we-iron powder kanye ne-flux ephezulu, ine-magnetostriction ephansi (umsindo ophansi), iyimpahla yokugcina amandla engabizi kakhulu, ayinakho ukuguga okushisayo, ingasetshenziswa ukufaka esikhundleni se-iron powder core, nokusebenza kwayo. uzinzile kakhulu ezingeni lokushisa eliphezulu.

Isici esiyinhloko se-Fe-Si-Al Z ukuthi inokulahlekelwa okuphansi kunomgogodla we-iron powder futhi inezici zamanje zokuchema kwe-DC. Intengo ayiphezulu engu-Z, kodwa ayiphansi kuka-Z, uma iqhathaniswa ne-iron powder core ne-iron nickel molybdenum.

I-Fe-Si-Al powder core inezici ezinhle kakhulu kazibuthe, ukulahlekelwa amandla aphansi kanye nokuminyana okuphezulu kwe-flux. Inokwethenjelwa okuphezulu njengokumelana nezinga lokushisa, ukumelana nomswakama kanye nokumelana nokudlidliza lapho isetshenziswa ebangeni lokushisa elingu-55C~+125C.

Ngasikhathi sinye, uhla olubanzi lwe-permeability lwe-60 kuya ku-160 luyatholakala. Kuyisinqumo esingcono kakhulu sokuphuma kokuphuma, ama-inductors e-PFC kanye nama-inductors anomsindo wokushintshwa kwamandla kagesi, futhi inesilinganiso esiphakeme sokusebenza kuya kwentengo.

Okungenhla ukwethulwa kobudlelwane phakathi kombala wendandatho kazibuthe nezinto ezibonakalayo. Uma ufuna ukwazi okwengeziwe ngama-inductors, sicela ukhululeke ukuxhumana nathi.