Hukama pakati peMagnetic Mhete Ruvara uye zvinhu | GETWELL

Zvindori zvemagineti zvakawanda zvinoda kupendwa kuti zviite mutsauko. Kazhinji, iron powder cores inosiyaniswa nemavara maviri, senge tsvuku / pachena, yero / tsvuku, girinhi / tsvuku, girinhi / yebhuruu uye yero / chena, manganese musimboti mhete dzinowanzo kupendwa girinhi, simbi, silicon uye aluminium kazhinji zvese zvitema. , zvichingoenda zvakadaro. Muchokwadi, ruvara rwemagineti mhete mushure mekupfurwa haruna chekuita nekupenda kwepende mushure mekupfapfaidza, ingori chibvumirano muindasitiri. Semuenzaniso, girini inomiririra yakakwirira magineti conductivity mhete; maviri-mavara anomiririra iron poda core magnetic ring ; dema inomiririra iron-silicon-aluminium magineti ring uye zvichingodaro.

High magnetic conductivity mhete

Magnetic ring inductor , inofanira kutaura Ni-Zn ferrite magnetic ring. Magnetic zvindori zvakakamurwa kuita Ni-Zn uye mn-Zn maererano nezvinhu. Kupindirana kwezvindori zveNi-Zn ferrite kunosiyana kubva ku15 kusvika ku2000. Zvinhu zvinowanzoshandiswa ndeyeNi-Zn ferrites ine permeability pakati pe100 ne1000. Maererano nekugadzirisa kupatsanurwa, Ni-Zn ferrites yakakamurwa kuva zvinhu zvakaderera. Kupinda kwemn-Zn ferrite magineti mhete kunowanzo kudarika zana, saka magineti mhete anogadzirwa nemn-Zn ferrites anonzi mhete dzepamusoro conductivity.

Mhete dzeNi-Zn ferrite dzinowanzo shandiswa kurwisa-kupindira mumhando dzese dzewaya, magumo ebhodhi redunhu uye michina yemakomputa. Mn-Zn ferrite zvindori zvinogona kushandiswa kugadzira macores, misoro uye antenna tsvimbo ye inductors , transformers uye mafirita. Kazhinji, iyo yakaderera iyo permeability yechinhu, iyo yakakura iyo inoshanda frequency renji; iyo yakakwirira kupenya kwechinhu, ndiko kudikitira kunoshanda frequency renji.

Iron poda core magnetic ring

Iron poda core izwi rinozivikanwa remagineti iron oxide, iro rinonyanya kushandiswa mumaseketi emagetsi kugadzirisa dambudziko rekuenderana kwemagetsi (EMC). Mukushanda kwekushandisa, zvakasiyana-siyana zvezvimwe zvinhu zvichawedzerwa zvichienderana neyakasiyana yekusefa zvinodiwa mumabhendi akasiyana.

Iyo yekutanga magineti poda core yaive "yakasungwa" simbi yakapfava magineti musimboti yakatsikirirwa nesimbi-silicon-aluminium alloy magineti poda. Iri rudzi rwesimbi-silicon-aluminium magnetic poda core inowanzonzi "iron powder core". Magadzirirwo ayo anowanzo kugadzirira ndeaya anotevera: iyo magineti poda yeFe-Si-Al alloy inogadzikiswa nebhora kugaya uye yakaputirwa ne insulating layer nemakemikari nzira, ipapo inenge 15wt% binder inowedzerwa, yakasanganiswa zvakaenzana, yakaumbwa uye yakasimbiswa, uye chigadzirwa. inogadzirwa nekupisa kupisa (kunetseka kwekunetseka) mushure meZ. Ichi chinyakare "iron poda core" chigadzirwa chinonyanya kushanda mu20kHz hupfu 200kHz. Nekuti ivo vane yakanyanya kukwirisa saturation flux density, zviri nani DC superposition hunhu, magnetostrictive coefficient padyo ne zero, hapana ruzha, yakanaka frequency kugadzikana uye yakakwirira kuita-kusvika-mutengo reshiyo pane maferrite anoshanda mune imwechete frequency bhendi, akashandiswa zvakanyanya mumagetsi. zvikamu zvakadai se-high-frequency electronic transformers. Chakashata chavo ndechekuti asiri-magineti mafirita haangoburitse magineti dilution, asi zvakare anoita kuti nzira yekuyerera isaenderere mberi, uye demagnetization yenzvimbo inotungamira mukudzikira kwepermeability.

Iyo yepamusoro-inoshanda simbi poda yepakati yakagadziridzwa nguva pfupi yadarika neZ yakasiyana neyechinyakare iron-silicon-aluminium magineti poda core, mbishi inoshandiswa haisi alloy magineti poda asi simbi yakachena yakavharwa ne insulating layer, uye huwandu hwebinder hwakanyanya. diki, saka iyo magnetic flux density yakagadziridzwa zvakanyanya. Ivo vanoshanda pakati uye yakaderera frequency bhendi pazasi 5kHz, kazhinji mazana mashoma hertz, ndiko kuti, yakaderera kupfuura yekushanda frequency yeFe-Si-Al magnetic poda core. Musika unovavarira kutsiva iyo silicon simbi pepa rinoshandiswa mumotokari nekuda kwekuderera kwayo, kushanda kwakanyanya uye nyore kuita matatu-dimensional dhizaini.

Fe-Si-Al magnetic mhete

Fe-Si-Al magineti mhete ndeimwe yemagineti mhete ine yakanyanya kushandiswa. Kuzvitaura zviri nyore, Fe-Si-Al inoumbwa neAl-Si-Fe uye ine yakakwira Bmax (Bmax ndiyo avhareji Z yakakura flux density panzvimbo yepakati-chikamu chepakati.). Kurasika kwayo kwepakati kwakadzikira pane iyo yesimbi poda core uye yakakwira flux, ine yakaderera magnetostriction (yakaderera ruzha), inodhura-inodhura simba yekuchengetedza zvinhu, haina kuchembera inopisa, inogona kushandiswa kutsiva iron poda core, uye kuita kwayo. yakagadzikana zvakanyanya pakupisa kwepamusoro.

Chimiro chikuru cheFe-Si-Al Z ndechekuti ine kurasikirwa kwakaderera pane iron poda core uye ine yakanaka DC bias ikozvino maitiro. Mutengo hausi Z wakakwira, asi hausi Z wakaderera, zvichienzaniswa nesimbi poda core uye iron nickel molybdenum.

Fe-Si-Al magineti poda musimboti ine yakanakisa magineti zvivakwa, yakaderera simba kurasikirwa uye yakakwira flux density. Iyo ine yakakwirira kuvimbika senge tembiricha kuramba, humidity kuramba uye vibration kuramba kana ichishandiswa mukupisa kwe-55C ~+125C.

Panguva imwecheteyo, yakawanda permeability yakasiyana-siyana ye60 kusvika ku160 inowanikwa. Iyo ndiyo yakanakisa sarudzo yezvinoburitsa, PFC inductors uye resonant inductors yekuchinja magetsi, uye ine yakakwira kuita-kusvika-mutengo chiyero.

Izvo zviri pamusoro ndiko kuiswa kwehukama pakati pemagineti mhete ruvara uye zvinhu. Kana iwe uchida kuziva zvakawanda nezve inductors, ndapota inzwa wakasununguka kutibata nesu.