Nanocrystalline Core rau siab -Frequency Transformers
Oct 16, 2025
Tso lus
Vim li cas Siab -Frequency Transformers Xav Tau Tshwj Xeeb Cores
Nyob rau hauv siab - lub zog inverter fais fab khoom siv khiav hauj lwm ntawm 20 kHz mus rau 50 kHz, transformer core yog cov khoom uas khaws thiab hloov lub zog ntawm cov thawj thiab theem nrab circuits. Vim hais tias txhua kilogram ntawm cov tub ntxhais yuav tsum xa roughly 10 mus rau 15 kW ntawm lub zog ntawm cov zaus no, lub zog ceev ntawm ib chav tsev ntim yog siab heev, thiab cov tub ntxhais poob yuav tsum tsis tshua muaj tsawg los yog cov cua kub generated nyob rau hauv lub tub ntxhais yuav ua puas lub transformer. Qhov kev xav tau no txwv tsis pub siv cov silicon steel cores thiab yuam tus tsim qauv xaiv ntawm ferrite, amorphous alloy thiab nanocrystalline alloy.
Cov Limits ntawm Ferrite Cores
Ferrite muaj qhov poob qis ntawm cov zaus siab, tab sis nws kuj tseem muaj qhov tsis zoo rau siab - fais fab inverter transformers. Nws qhov permeability qis dua 100 kHz yog qhov qis, nws cov saturation flux ceev Bs tsuas yog li 0.4-0.5 T, thiab nws Curie kub yog qis, yog li cov khoom sib nqus sai sai thaum kub nce. Qhov qis Bs yuam cov tub ntxhais loj hla- ntu, uas ua rau lub tshuab hloov pauv loj thiab hnyav, thiab qhov tsis zoo thermal stability txhais tau hais tias cov tub ntxhais tuaj yeem saturate thiab tsis ua haujlwm raug thaum lub load lossis qhov kub thiab txias. Cov kev txwv no ua rau ferrite tsis tsim nyog rau siab - fais fab, high-frequency transformer cores hauv chav kilowatt.
Qhov zoo ntawm Nanocrystalline Cores
Nanocrystalline alloy ua ke cov ntsiab lus muaj zog ntawm silicon steel, permalloy thiab ferrite. Nws qhov saturation flux ceev ncav cuag li 1.2 T, nws thawj permeability tuaj yeem tshaj 20000, thiab nws cov tub ntxhais poob ntawm 20-50 kHz yog ib feem ntawm silicon steel thiab piv rau los yog qis dua ferrite nyob rau hauv tib lub flux ntau. Cov khoom siv kuj muaj qhov kub siab Curie thiab cov khoom sib nqus ruaj khov tshaj qhov kev khiav hauj lwm qhov kub thiab txias, yog li cov tub ntxhais tsis ya mus rau hauv saturation hauv load. Cov khoom no ua rau nanocrystalline nyiam cov khoom tseem ceeb rau lub ntsiab transformer ntawm high-power inverters, vuam tshuab, induction cua sov khoom thiab roj teeb chargers.
Kev tiv thaiv ntawm Nanocrystalline Core
Tsis zoo li ferrite, nanocrystalline strip core nyob rau hauv nws lub xeev dawb tuaj yeem deform, thiab txhua qhov deformation degrades cov khoom sib nqus heev. Cov tub ntxhais yog li ntawd tiv thaiv los ntawm lub thawv kaw, los ntawm kev txau los yog electrostatic txau ntawm cov resin los yog yas txheej, los yog los ntawm wrapping txheej txheej nrog iav fiber ntau thiab ntxiv epoxy resin txheej. Cov txheej txheem kaw no muab cov cuab yeej siv siab thiab cov qauv compact, tab sis lawv kuj cuab cua sov. Vim hais tias cov tub ntxhais poob heats lub Cheebtsam los ntawm sab hauv thiab sab nrauv winding ntxiv cov cua sov, qhov poob tus nqi ntawm cov tub ntxhais yog qhov kev txiav txim siab rau qhov kub thiab txias ntawm lub transformer tiav lawm, thiab qis dua - xaiv cov khoom poob yog qhov kev daws teeb meem.
Tus sawv cev Nanocrystalline Ring Core Specifications
| Core loj id x od x ht (mm) | Lub thawv loj ID x OD x HT (mm) | Siv tau thaj tsam Ae (mm2) | Sib nqus txoj kab (mm) | Max DC overcurrent (A) |
|---|---|---|---|---|
| 14 x 19 x 6.5 | 12 x 22 x 8 | 11.86 | 51.81 | 20 |
| 14 x 20 x 10 | 12 x 22.3 x 11.4 | 29.68 | 52.29 | 40 |
| 16 x 21 x 10 | 15 x 24 x 12.3 | 24.85 | 57.41 | 60 |
| 18 x 23 x 10 | 16.4 x 24.4 x 12.3 | 29.78 | 60.38 | 70 |
| 19 x 25 x 10 | 17.3 x 26 x 12.3 | 39.42 | 62.31 | 80 |
| 20 x 28 x 10 | 18.5 x 29 x 12.3 | 45.76 | 73.88 | 90 |
| 22 x 28 x 10 | 20.5 x 30 x 12.3 | 49.32 | 79.89 | 120 |
| 23 x 32 x 10 | 21.3 x 33.4 x 12.3 | 44.56 | 74.56 | 120 |
Lub rooj teev cov neeg sawv cev qhov ntau thiab tsawg. Txoj kev ua haujlwm zoo - ntu ntu thiab qhov ntev ntawm txoj kab sib nqus tso cai rau tus tsim los suav cov lej hloov pauv rau qhov xav tau inductance thiab txheeb xyuas qhov flux ceev ntawm qhov ua haujlwm zaus.
Daim ntawv thov
Nanocrystalline nplhaib cores tau dav siv hauv inverter vuam tshuab, cov khoom siv hluav taws xob, cov khoom siv hluav taws xob electroplating thiab electrolysis, cov khoom siv cua sov induction thiab cov khoom siv hluav taws xob. Lawv kuj tshwm sim hauv kev hloov pauv- hom khoom siv hluav taws xob qhov twg me me, kev ua haujlwm siab thiab tsis muaj suab nrov yog xav tau, thiab nyob rau hauv ntau yam - hom chokes rau electromagnetic cuam lim, qhov twg lawv cov permeability siab tso cai rau ib tug compact tsim nrog zoo heev attenuation.
Cov lus nug nquag
Dab tsi yog qhov ua haujlwm zaus ntawm nanocrystalline core?
Nanocrystalline cores ua haujlwm los ntawm qhov qis kilohertz mus txog li 100-150 kHz hauv kev siv fais fab. Nyob rau hauv 20-50 kHz ntau yam ntawm high-power inverters lawv muab qhov zoo tshaj plaws tshuav nyiaj li cas ntawm high saturation flux ceev thiab tsawg core poob.
Vim li cas qhov saturation flux ceev yog qhov tseem ceeb rau lub hwj chim transformer?
Bs siab dua tso cai rau cov tub ntxhais me me hla-section rau tib lub zog dhau los, uas txo qhov ntim thiab qhov hnyav ntawm lub tshuab hloov pauv thiab txo qis tus lej ntawm qhov xav tau rau qhov xav tau inductance.
Yuav ua li cas yog lub core poob ntawm ib tug nanocrystalline core teev?
Cov ntaub ntawv cov ntaub ntawv muab cov tub ntxhais poob rau ib chav tsev loj ntawm cov frequencies thiab flux densities, piv txwv li ntawm 20 kHz thiab 0.2 T. Tus tsim qauv ntsuas tus nqi no nrog qhov tseeb flux viav vias thiab cov tub ntxhais loj los kwv yees qhov kub thiab txias.
Vim li cas thiaj yuav tsum muaj cov tub ntxhais nanocrystalline tiv thaiv hauv lub thawv lossis txheej txheej?
Cov khoom siv nyias nyias yog cov khoom muag muag thiab tuaj yeem deform nyob rau hauv kev ntxhov siab winding. Deformation hloov txoj kev sib nqus thiab sharply degrades cov khoom sib nqus, yog li cov kev tiv thaiv casing los yog txheej ua rau lub geometry ruaj khov.
Cov tub ntxhais nanocrystalline puas tuaj yeem siv rau ntau hom - hom chokes?
Yog lawm. Lub siab permeability ntawm cov khoom muab muaj zog attenuation nrog ob peb lem, uas ua rau lub choke me me thiab npaum. Cov tub ntxhais tseem tuaj yeem tswj cov DC kev tsis ncaj ncees tam sim no hauv cov kab hluav taws xob yam tsis muaj kev puas tsuaj ntxov ntxov.
Dab tsi txiav txim siab qhov siab tshaj plaws DC tam sim no ntawm lub nplhaib tseem ceeb?
Qhov siab tshaj plaws DC overcurrent yog qhov tam sim no uas qhov inductance poob rau ib feem pua ntawm nws cov nqi pib. Nws nyob ntawm qhov chaw ua haujlwm tau zoo, qhov ntev ntawm txoj kev sib nqus thiab tus naj npawb ntawm cov lem, thiab nws raug txheeb xyuas los ntawm DC kev ntsuas kev ntsuas ntawm qhov choke tiav.