Hlau core ntawm transformer

 

Cov tub ntxhais yog qhov tseem ceeb ntawm cov hlau nplaum hauv lub transformer. Nws yog feem ntau yog tsim los ntawm kub dov los yog txias dov silicon steel los xij nrog cov ntsiab lus siab silicon thiab ib qho chaw coated nrog insulating xim. Cov tub ntxhais hlau thiab cov coils nyob ib ncig ntawm nws yog ib qho ua tiav electromagnetic induction system. Tus nqi ntawm lub zog xa los ntawm lub zog hloov hluav taws xob nyob ntawm cov khoom siv thiab ntu ntu ntawm cov tub ntxhais hlau.

 

 

2.1 Lub qhov txhab thiab cov tub ntxhais laminated

2.1.1 mob hlau tub ntxhais

Cov tub ntxhais qhov txhab feem ntau yog siv nyob rau hauv me me thiab nruab nrab-qhov loj me transformers (hauv qab 1000kVA), transformers, magnetic amplifiers thiab xoom sequence tam sim no transformers ntawm to protectors.

 

Cov ntaub ntawv siv rau lub qhov txhab yog ultra-nyias txias-kuav los tiag silicon steel ntawv nrog siab permeability thiab mos sib nqus sawb xws li permalloy. Lub thickness ntawm silicon steel ntawv yog 0.18 ~ 0.30; Lub thickness ntawm Permalloy strip yog 0.03 ~ 0.10mm. Siv cov transformers me me thiab nruab nrab ua piv txwv, kev siv lub qhov txhab qhov txhab muaj qhov zoo hauv qab no:

1) Raws li cov xwm txheej zoo ib yam, qhov tsis muaj qhov poob ntawm lub qhov txhab ntawm lub qhov txhab raug txo los ntawm 7% mus rau 10% piv nrog cov tub ntxhais laminated; Tsis muaj-load tam sim no tuaj yeem txo los ntawm 50% ~ 75%.

2) Lub qhov txhab ntawm lub qhov txhab tuaj yeem ua los ntawm cov ntaub ntawv nyias nyias uas muaj peev xwm ua tau txias-kuav los tiag silicon steel los xij, uas tuaj yeem tsim cov hloov pauv nrog qhov poob qis.

3) Lub qhov txhab lub qhov txhab muaj kev ua haujlwm zoo, tsis muaj qhov khib nyiab, thiab kev siv tus nqi yuav luag 100%. Nws tseem tuaj yeem txais kev lag luam mechanized, tshem tawm cov txheej txheem stacking, thiab kev ua haujlwm ntau lawm yog 5 mus rau 10 npaug siab dua li ntawm cov tub ntxhais laminated.

4) Lub qhov txhab ntawm lub qhov txhab nws tus kheej yog tag nrho, tsis tas yuav tsum tau kho los ntawm clamping kev txhawb nqa qhov chaw, thiab tsis muaj kev sib koom ua ke, yog li nyob rau hauv tib yam li cov tub ntxhais laminated, lub suab nrov transformer tuaj yeem txo los ntawm 5 ~ 10dB.

5) Cov txheej txheem coefficient ntawm lub qhov txhab qhov txhab ib-theem transformer yog hais txog 1.1; Peb theem hauv qab 1.15; Rau laminated hlau cores, txheej txheem coefficient ntawm me me peev xwm yog hais txog 1.45, thiab cov txheej txheem coefficient ntawm loj muaj peev xwm yog hais txog 1.15. Yog li ntawd, lub qhov txhab lub qhov txhab yog tshwj xeeb tshaj yog haum rau me me thiab nruab nrab-qhov loj me transformers.

 

 

2.1.2 laminated hlau cores

Txhais

Laminated hlau core yog ib qho tseem ceeb ntawm kev siv fais fab transformers, inductors, transformers thiab lwm yam khoom siv fais fab. Nws yog tsim los ntawm ntau daim ntawv, nrog rau siab permeability thiab qis hysteresis poob, uas tuaj yeem txhim kho kev ua haujlwm zoo thiab kev ua haujlwm ruaj khov ntawm cov khoom siv.

 

Cov qauv ntawm laminated hlau core

Cov tub ntxhais laminated muaj ntau daim ntawv, txhua tus ua los ntawm cov khoom siv permeable, xws li silicon steel. Cov nplooj ntawv no tau sib cais los ntawm cov khoom siv insulating los tsim ib qho qauv. Laminated hlau cores feem ntau yog cov duab plaub los yog voj voog nyob rau hauv cov duab kom hloov mus rau qhov yuav tsum tau ntawm cov khoom sib txawv. Hauv kev tsim cov txheej txheem ntawm laminated hlau core, nws tseem yuav tsum tau txiav txim siab txog yam xws li lub thickness ntawm daim ntawv, xaiv cov ntaub ntawv rwb thaiv tsev thiab cov txheej txheem ua kom nws cov kev ua tau zoo thiab kev ntseeg tau. Cov tub ntxhais hlau ua ib lub voj voog kaw sib nqus nyob rau hauv lub transformer, thiab nws kuj yog lub cev pob txha ntawm lub installation kauj, uas yog ib feem tseem ceeb heev rau cov electromagnetic kev ua tau zoo thiab txhua yam lub zog ntawm lub transformer. Cov tub ntxhais hlau yog qhov sib nqus Circuit Court ntawm lub transformer, uas yog tsim los ntawm ib tug hlau core kem (winding teem rau ntawm kem) thiab ib tug hlau yoke (txuas lub hlau tub ntxhais los tsim ib tug kaw magnetic Circuit Court). Txhawm rau txo qis eddy tam sim no thiab hysteresis poob thiab txhim kho qhov sib nqus conductivity ntawm cov hlau nplaum, cov tub ntxhais hlau yog ua los ntawm {{0}}.35mm ~ 0.5mm tuab silicon steel ntawv coated nrog insulating xim. Qhov me me transformer core seem yog duab plaub los yog square, thiab qhov loj transformer core seem yog stepped, uas yog ua kom tag nrho ntawm qhov chaw.

 

Laminated core nta

Txij li cov tub ntxhais thiab winding ntawm lub laminated core transformer yog tsim los sib cais, cov tub ntxhais yog stacked ua ntej, thiab tom qab ntawd lub sab sauv yoke raug tshem tawm, thiab tom qab ntawd cov tub ntxhais rwb thaiv tsev thiab coil yog haum, thiab lub kauj thiab cov tub ntxhais ncej tau txais kev txhawb nqa nrog txoj hlua khi, thiab thaum kawg tus quab hlau yog muab tso rau kom tiav lub rooj sib txoos ntawm lub cev.

 

Cov qauv ntawm laminated core transformer muaj cov yam ntxwv hauv qab no:

1. Cov kev taw qhia clamping ntawm cov tub ntxhais yog cov thickness kev taw qhia ntawm cov ntawv tseem ceeb, uas tuaj yeem clamp cov tub ntxhais zoo;

2. Rau ob txheej txheej cylindrical kauj, txheej txheej txheej ntawm lub kauj tsis muaj coil skeleton;

3. Vim hais tias cov hlau ncej sab saud raug tshem tawm thaum lub sij hawm installation, cov tub ntxhais kem thiab cov kauj yuav yooj yim nruj nrog ib tug nyob twj ywm;

4. Lub kauj yog mob nyias, thiab lub kauj tuaj yeem dipped nyias tom qab winding.

 

 

2.1.3 Kev sib piv ntawm peb-dimensional triangular qhov txhab tub ntxhais, laminated core thiab tiaj tus qhov txhab tub ntxhais

1) Peb-dimensional triangular qhov txhab hlau core

Peb-dimensional lub qhov txhab cores: Ib daim duab peb sab peb-dimensional kev npaj ntawm ib tug hlau core muaj li ntawm peb ib leeg-ncej qhov txhab cores ntawm tib geometric loj.

Peb-dimensional mob core transformer: faib transformer nrog peb-dimensional qhov txhab tub ntxhais raws li cov hlau nplaum Circuit Court.

Cov txheej txheem nta: Tag nrho cov tub ntxhais hlau yog ua los ntawm peb qhov zoo ib yam nkaus xwb, thiab peb kab ntawm cov tub ntxhais hlau yog teem rau hauv daim duab peb sab sib npaug. Txhua lub thav duab yog ua los ntawm ntau cov khoom siv trapezoidal txoj siv sia ua ntu zus. Tus ntoo khaub lig ntawm ib lub thav duab tom qab winding yog ze rau semi-circular, thiab tus ntoo khaub lig seem tom qab splitting yog heev ze rau tag nrho lub voj voog quasi-polygon. Cov khoom siv trapezoidal ntawm ntau qhov sib txawv ntawm ib lub thav duab yog qhov txhab los ntawm qhov tshwj xeeb folding kab txiav tshuab. Hom kev txiav no tuaj yeem ua tsis tau cov khoom siv, uas yog, thaum txiav, cov khoom siv yog 100%.

 

2) Laminated hlau core

Laminated hlau core: Nws yog tsim los ntawm longitudinal shear ntau lawm kab thiab transverse shear ntau lawm kab, thiab silicon steel sawb yog ua tiav rau hauv ib tug tej yam zoo li silicon steel ntawv, thiab ces cov silicon steel ntawv yog stacked nyob rau hauv ib txoj kev.

Laminated core muaj peb qhov tsis zoo:

Muaj qhov sib txawv ntawm huab cua tsim los ntawm ntau cov pob qij txha hauv cov hlau nplaum sib nqus, uas ua rau muaj qhov sib nqus tsis kam ntawm cov hlau nplaum sib nqus, yog li ua rau qhov poob thiab tsis muaj load tam sim no.

Cov kev taw qhia ntawm lub magnetic Circuit Court nyob rau hauv tej qhov chaw yog inconsistent nrog cov kev taw qhia ntawm lub siab magnetic permeability ntawm silicon steel sawb.

Qhov tsis muaj nruj ntawm cov hlais tsis tsuas yog txo cov lamination coefficient, tab sis tseem ceeb tshaj, ua rau lub suab nrov.

Cov nyhuv ntawm cov txheej txheem ntawm kev poob

Longitudinal shear thiab transverse shear ua rau muaj kev ntxhov siab ntau ntxiv

Cov kev taw qhia ntawm lub magnetic Circuit Court nyob rau hauv lub ces kaum yog inconsistent nrog cov kev taw qhia ntawm lub magnetic conductivity, uas zoo heev ua rau kom poob.

Cov pob qij txha nce qhov poob, tshwj xeeb tshaj yog qhov nce hauv qhov tsis muaj kev thauj khoom tam sim no

Cov txheej txheem coefficient yog 1.15 ~ 1.3

 

3) Kev cuam tshuam ntawm cov qauv ntawm cov hlau nplaum hluav taws xob

Nyob rau hauv cov tsoos pawg tub ntxhais nrog huab cua sib txawv, lub coupling magnetic Circuit Court ntawm lub AC theem yog pom tseeb 1/2 ntev dua lub magnetic Circuit Court ntawm AB theem thiab BC theem, yog li lub magnetic Circuit Court yog unbalanced, thiab sib nqus tsis kam ntawm AC. theem loj dua. Thaum peb-theem voltage yog siv rau lub transformer, cov tub ntxhais ua ib tug peb-theem sib npaug sib nqus flux φA, φB, thiab φC.

Thaum qhov sib nqus flux ntawm peb-theem sib npaug dhau los ntawm qhov sib nqus tsis sib haum, qhov sib nqus hluav taws xob poob ntawm A thiab C theem yog loj, uas cuam tshuam rau peb-theem voltage tshuav. Qhov kev tsis sib haum no nyob rau hauv qhov sib nqus hluav taws xob yog ib qho kev tsis sib haum xeeb uas tsis muaj kev cuam tshuam rau cov qauv transformers.

 

4) Flat mob hlau core

Flat mob core: Ib lub tiaj tiaj tiaj tiaj hlau uas muaj ib lossis ntau dua ib lub thav ntawv nrog lub qhov txhab.

Cov yam ntxwv ntawm tus txheej txheem: Lub qhov txhab lub qhov txhab yog thawj lub qhov txhab me me, tom qab kev sib xyaw ua ke ntawm ob sab hauv lub qhov txhab uas tau raug mob, thiab tom qab ntawd ua rau lub qhov txhab loj dua nyob rau hauv nws cov khoom siv sab nraud, peb lub hauv paus ntawm lub qhov txhab ntawm lub qhov txhab. hauv ib lub dav hlau.

Flat mob core qauv defects

Ib yam li cov tub ntxhais ntawm lub tiaj tiaj thiab cov tub ntxhais laminated, peb lub cores yog teem rau hauv ib lub dav hlau, yog li ntawd qhov sib nqus Circuit Court ntev ntawm peb core kab tsis sib haum: qhov sib nqus Circuit Court ntev ntawm nruab nrab kem yog luv luv, lub magnetic circuits. qhov ntev ntawm ob sab kab yog ntev dua, thiab qhov nruab nrab sib nqus Circuit Court ntev yog li ntawm 20%, uas ua rau muaj qhov sib txawv loj hauv qhov tsis muaj qhov poob ntawm peb cov cores, tsis muaj load poob ntawm cov khoom. nruab nrab kem yog qis, thiab tsis muaj-load poob ntawm ob sab kab yog loj, uas ua rau peb-theem imbalance.

 

 

2.2 Ib-theem thiab peb-theem cores

Tib-theem core muaj ib qho ob-kab laminated core. Muaj tsib yam ntawm ib theem ib-kem ib sab-yoke hom plaub-kem core, ib-theem ob-kem hom laminated core thiab ib-theem radiant hom laminated core. Muaj plaub yam ntawm peb-theem tub ntxhais: peb-theem kem laminated core, peb-theem sab-yoke tsib-kem core, peb-theem ob-thooj laminated core thiab peb-theem reactor laminated core.

Cov tub ntxhais hlau muaj ob ntu: ib sab hlau hlau thiab ib tus quab hlau. Lub hauv paus tseem ceeb yog them nrog winding, thiab lub yoke hlau txuas cov tub ntxhais kem los ua ib qho kev sib nqus sib nqus. Lub hom phiaj tseem ceeb ntawm lub transformer yog qhia nyob rau hauv daim duab 1, daim duab 1a yog ib theem transformer, daim duab 1b yog peb-theem transformer, cov tub ntxhais qauv yuav muab faib ua ob feem, C yog ib feem ntawm lub kauj, hu ua core kab. Y yog siv los kaw ib feem ntawm lub magnetic Circuit Court, hu ua tus quab. Ib-theem transformer muaj ob lub cores, thiab peb-theem transformer muaj peb cores.

 

 

Vim hais tias cov sib nqus flux nyob rau hauv lub transformer core yog ib tug alternating magnetic flux, thiaj li yuav txo tau qhov eddy tam sim no poob, lub transformer core feem ntau yog ua los ntawm silicon steel los xij nrog loj resistivity rau hauv ib tug tej yam me me ntawm cov hlau nti, silicon steel los xij muaj li ntawm. cov tub ntxhais hlau raug txiav rau hauv qhov xav tau cov duab thiab qhov loj me, thiab tom qab ntawd cov ntawv xuas nrig ntaus sib xyaw ua ke hauv txoj kev sib tshooj. Daim duab 2a qhia cov tub ntxhais hlau ntawm ib theem hloov pauv, txhua txheej muaj 4 xuas nrig ntaus. Daim duab 2b qhia cov tub ntxhais hlau ntawm peb-theem transformer, txhua txheej yog tsim los ntawm 6 daim, thiab kev sib xyaw ua ke ntawm txhua ob txheej ntawm cov nti siv cov txheej txheem sib txawv kom stagger cov pob qij txha ntawm txhua txheej ntawm cov khoom sib nqus. Txoj kev sib dhos no yog hu ua overlapping los ua ke, thiab lub rooj sib txoos no tuaj yeem zam qhov eddy tam sim no ntws ntawm cov ntawv hlau thiab cov ntawv hlau. Thiab vim hais tias txhua txheej ntawm xuas nrig ntaus yog interwoven, tsawg dua fasteners yuav siv tau los ua tus qauv yooj yim thaum nias lub hlau core. Thaum lub sij hawm sib dhos, cov ntawv xuas nrig ntaus yog thawj zaug los ua ib qho tseem ceeb ntawm cov hlau, thiab tom qab ntawd cov hlau yoke qis yog clamped, cov hlau yoke punching phaj sab saud raug tshem tawm kom nthuav tawm cov tub ntxhais kem, lub prefabricated winding yog muab tso rau hauv cov tub ntxhais kem, thiab Thaum kawg cov muab rho tawm sab sauv hlau yoke xuas nrig ntaus phaj yog tso.

 

 

2.3 Plhaub thiab cores

Ib feem ntawm clad winding nyob rau hauv cov tub ntxhais hlau yog hu ua "core kem", thiab ib feem ntawm cov tsis-clad winding uas tsuas plays lub luag hauj lwm ntawm lub magnetic Circuit Court hu ua "hlau yoke". Qhov twg cov tub ntxhais hlau puag ncig lub winding, nws yog hu ua plhaub hom; Qhov twg lub winding puag ncig lub core kem yog hu ua core hom. Plhaub hom thiab cov tub ntxhais hom muaj lawv tus kheej cov yam ntxwv, tab sis lub transformer manufacturing txheej txheem txiav txim los ntawm cov hlau core yog txawv heev, thiab nws yog ib qho nyuaj rau tig mus rau ib tug qauv ib zaug ib tug tej yam qauv raug xaiv. Feem ntau ntawm transformer core nyob rau hauv peb lub teb chaws txais yuav stacked core hom.

Raws li kev npaj ntawm winding nyob rau hauv cov tub ntxhais hlau, lub transformer muab faib ua core hom thiab plhaub hom. Qhov sib txawv tsuas yog nyob rau hauv kev faib tawm ntawm cov sib nqus Circuit Court, tus quab ntawm lub plhaub transformer core nyob ib ncig ntawm lub kauj, cov tub ntxhais transformer core feem ntau yog nyob rau hauv lub kauj, tsuas yog ib feem ntawm cov hlau yoke sab nraum lub kauj, uas yog siv los tsim cov hlau nplaum. Circuit Court.

 

 

 

Thaum lub transformer nyob rau hauv ib txwm ua haujlwm, cov tub ntxhais hlau yuav ua kom muaj cua sov vim qhov muaj cov hlau tsis zoo, thiab qhov hnyav thiab ntim ntawm cov tub ntxhais hlau ntau dua, qhov kub yuav ntau dua. Transformer roj kub siab tshaj 95 degrees yog ib qho yooj yim rau lub hnub nyoog, yog li qhov kub ntawm cov tub ntxhais nto yuav tsum tau tswj hauv qab no kub kom deb li deb tau, uas yuav tsum tau lub tshav kub dissipation qauv ntawm cov tub ntxhais kom sai sai dissipate lub tshav kub ntawm cov tub ntxhais. Lub tshav kub dissipation qauv yog tsuas yog ua kom lub tshav kub dissipation nto ntawm cov tub ntxhais hlau. Lub tshav kub dissipation ntawm cov tub ntxhais hlau feem ntau suav nrog cov cua kub dissipation ntawm cov hlau tub ntxhais roj channel thiab cov cua kub dissipation ntawm cov hlau tub ntxhais cua.

 

Nyob rau hauv cov roj-immersed transformers nrog lub peev xwm loj, cov roj slots feem ntau teem nruab nrab ntawm cov laminates ntawm cov tub ntxhais hlau los txhim kho cov cua kub dissipation. Lub tank roj tau muab faib ua ob hom, ib qho yog sib npaug rau cov ntawv silicon steel, thiab lwm qhov yog ntsug rau cov ntawv hlau, raws li qhia hauv daim duab 4. Cov txheej txheem tom kawg tau zoo dua cov cua sov dissipation, tab sis cov qauv yog ntau txoj hauv kev.

 

Nyob rau hauv lub qhuav transformer core yog cua txias, thiaj li yuav xyuas kom meej tias cov tub ntxhais kub tsis tshaj tus nqi tso cai, feem ntau ntsia nyob rau hauv lub tub ntxhais kem thiab hlau yoke cua duct.

 

 

 

Lub transformer yuav ua suab nrov thaum ua haujlwm. Lub hauv paus ntawm transformer lub cev suab nrov yog magnetostriction ntawm silicon steel ntawv ntawm cov hlau core, los yog lub suab nrov ntawm transformer core yog yeej los ntawm magnetostriction. Lub npe hu ua magnetostriction yog hais txog qhov nce ntawm qhov loj ntawm silicon steel ntawv raws li cov kev taw qhia ntawm cov hlau nplaum induction kab thaum cov tub ntxhais hlau zoo siab; Qhov luaj li cas ntawm silicon steel daim ntawv txo qis nyob rau hauv cov kev taw qhia perpendicular mus rau magnetic inductance kab, thiab qhov kev hloov loj no hu ua magnetostriction. Tsis tas li ntawd, cov qauv thiab geometric loj ntawm cov tub ntxhais hlau, cov txheej txheem ntawm cov tub ntxhais hlau ua thiab kev tsim khoom yuav muaj qee qhov cuam tshuam rau nws cov suab nrov.

 

Lub suab nrov ntawm cov tub ntxhais hlau tuaj yeem raug txo los ntawm cov kev ntsuas hauv qab no: (1) Kev siv cov ntawv zoo silicon steel nrog me me magnetostrictive ratio ε tus nqi. (2) Txo qhov sib nqus flux ceev ntawm cov tub ntxhais. (3) Txhim kho cov qauv ntawm cov tub ntxhais hlau. (4) Xaiv qhov loj me me uas tsim nyog. (5) Txais cov txheej txheem ua tiav.

 

 

Nyob rau hauv ib txwm ua haujlwm ntawm lub transformer, lub teb hluav taws xob tsim los ntawm kev them nyiaj winding thiab cov hlau lead thiab cov roj tank yog ib qho hluav taws xob tsis sib xws, thiab cov tub ntxhais hlau thiab nws cov hlau yog nyob rau hauv hluav taws xob. Vim tias lub peev xwm ntawm electrostatic induction sib txawv, lub peev xwm raug ncua ntawm cov tub ntxhais hlau thiab nws cov hlau tsis zoo ib yam, thiab thaum muaj peev xwm sib txawv ntawm ob lub ntsiab lus tuaj yeem rhuav tshem cov rwb thaiv tsev ntawm lawv, lub txim hluav taws xob tsim tawm. Qhov kev tso tawm no tuaj yeem rhuav tshem cov roj ntawm lub tshuab hluav taws xob thiab ua kom puas lub rwb thaiv tsev. Txhawm rau zam qhov no, ob qho tib si tseem ceeb thiab nws cov khoom siv hlau yuav tsum muaj kev ntseeg siab hauv av.

 

Lub hauv paus yuav tsum yog me ntsis grounded. Thaum cov tub ntxhais hlau los yog lwm yam hlau yog hauv av ntawm ob lossis ntau lub ntsiab lus, lub voj kaw yuav raug tsim los ntawm cov ntsiab lus hauv av, tsim kev ncig, qhov tam sim no qee zaum yuav siab li kaum tawm amps, yuav ua rau muaj cua sov hauv zos, ua rau roj decomposition, kuj yuav ua rau hauv av sawb fuse, hlawv cov tub ntxhais, cov no tsis tso cai. Yog li ntawd, lub hauv paus yuav tsum tau grounded, thiab nws yuav tsum yog me ntsis grounded.

 

 

Lub advent ntawm nanocrystalline thiab amorphous hlau cores muab cov ntaub ntawv zoo tagnrho rau nruab nrab thiab siab zaus transformers. Nrog rau txoj kev loj hlob ntawm kev lag luam, kev khiav hauj lwm zaus ntawm cov khoom siv hluav taws xob tau nce mus rau 20kHz, thiab cov zis hluav taws xob tau tshaj 30kW. Cov khoom siv tseem ceeb xws li cov ntawv silicon steel muaj qhov poob loj thiab tsis tuaj yeem ua tau raws li qhov xav tau tshiab ntawm lub zog hluav taws xob.

 

Lub amorphous thiab hlau-raws li nanocrystalline core muaj cov yam ntxwv ntawm high saturation magnetic induction, siab permeability, tsawg poob, zoo kub stability, ib puag ncig tiv thaiv, thiab lwm yam, thiab muaj ib tug tseem ceeb daim ntawv thov nqi nyob rau hauv high-frequency transformers.

 

 

 

6.1 Nanocrystalline tub ntxhais

Cov ntaub ntawv nanocrystalline feem ntau yog tsim los ntawm hlau, chromium, tooj liab, silicon, boron thiab lwm yam khoom, thiab cov khoom siv alloy tshwj xeeb no tau ua rau hauv cov xeev amorphous los ntawm kev siv tshuab nrawm nrawm, thiab tom qab ntawd kho cua sov los ua cov nplej nanoscale.

Cov tub ntxhais nanocrystalline nthuav tawm cov khoom sib nqus zoo heev thiab qhov kub thiab txias, thiab tshwj xeeb tshaj yog tsim nyog rau kev hloov ferrite hauv transformers hauv qab qhov ntau zaus ntawm 20kHz txog 50kHz.

Cov khoom siv nanocrystalline muaj qhov tiv taus ntawm 90 μ Ω.cm (tom qab kev kho cua sov) thiab, ua tsaug rau nws cov nanostructure, muab cov txiaj ntsig zoo ntawm silicon steel, permalloy thiab ferrite.

 

 

 

Lub thickness ntawm cov hlau nanocrystalline mos magnetic cov ntaub ntawv yog hais txog 30μm. Vim nws qhov brittleness thiab rhiab heev rau kev ntxhov siab, cov khoom sib nqus yuav txo qis thaum raug rau sab nraud quab yuam thaum ua thiab siv. Yog li ntawd, nanocrystal core feem ntau yog ua rau hauv ib lub nplhaib lossis cov duab nees thiab muab tso rau hauv lub plhaub tiv thaiv. Cov khoom siv tiv thaiv lub plhaub yuav cuam tshuam rau kev ua haujlwm ntawm cov cua sov ntawm nanocrystalline core.

Cov tub ntxhais nanocrystalline tshiab tau siv rau cov tshuab hloov pauv, qhov tuab ntawm cov khoom siv nanocrystalline tsuas yog 24μm, thiab cov tub ntxhais kho tom qab kev kho cua sov muaj qhov zoo ntawm cov tsoos transformer core:

Cov tub ntxhais tshiab nanocrystalline yog coated nrog ib zaj duab xis insulating, uas ua tiav qhov yuav tsum tau muaj zog rau winding thiab tuaj yeem raug mob ncaj qha rau hauv transformers.

Cov tub ntxhais nanocrystalline kho tau tshem tawm cov txheej txheem tiv thaiv, muab ntau qhov chaw rau cov cua sov dissipation thiab txhim kho lub tshuab ua haujlwm kev nyab xeeb.

Qhov kev tsim no txo ​​qhov cuam tshuam ntawm cov khoom siv plhaub tiv thaiv ntawm nanocrystalline core, thiab txuag cov qauv tsim thiab tsim lub sijhawm ntawm lub plhaub tiv thaiv.

Nanocrystalline core tsim tuaj yeem hloov tau yooj yim, muab ntau yam duab xws li lub nplhaib, duab plaub thiab C-zoo li tus tub ntxhais, muab ntau txoj kev xaiv rau transformer tsim thiab cov txheej txheem winding tom ntej.

 

6.2 Amorphous magnetic core

Cov khoom siv amorphous yog tsim los siv ultra-ceev quenching thev naus laus zis nrog rau qhov cua txias txog li ib lab degrees ib ob. Cov cuab yeej siv no ua kom cov hlau molten nyob rau hauv ib qho quenching rau hauv cov hlau nplaum nrog lub thickness ntawm 30 microns. Vim qhov ceev ceev txias, cov hlau tsis muaj sij hawm rau crystallize, ua rau tsis muaj nplej los yog nplej ciam teb nyob rau hauv cov hlau, uas ua rau cov tsim ntawm thiaj li hu ua amorphous alloys.

Amorphous hlau muaj ib tug tshwj xeeb microstructure uas txawv ntawm cov pa hlau, thiab nws muaj pes tsawg leeg thiab tsis zoo qauv muab nws ntau yam khoom, xws li zoo heev hlau nplaum, corrosion kuj, hnav tsis kam, siab zog, hardness, toughness, siab resistivity, siab electromechanical coupling coefficient. , lwm.

 

 

 

Cov khoom tseem ceeb ntawm cov hlau-raws li amorphous core yog hlau, silicon thiab boron, uas cov ntsiab lus silicon siab li 5.3%, thiab cov qauv tshwj xeeb ntawm lub xeev amorphous, nws qhov kev tiv thaiv yog 130 μΩ.cm, uas yog ob zaug uas. ntawm silicon steel ntawv (47 μΩ.cm).

Lub thickness ntawm ferro-raws li amorphous cov ntaub ntawv siv nyob rau hauv lub amorphous core yog hais txog 30nm, uas yog ntau thinner tshaj lub thickness ntawm silicon steel ntawv, yog li qhov eddy tam sim no poob yog me me ntawm kev ua haujlwm siab. Nyob rau hauv ntau zaus ntawm 400Hz ~ 10kHz, qhov poob tsuas yog 1/3 ~ 1/7 ntawm silicon steel ntawv. Nyob rau tib lub sijhawm, qhov permeability ntawm cov hlau-raws li amorphous hlau core yog ntau dua li cov tsoos hlau core.

Vim yog cov txiaj ntsig zoo no, cov tub ntxhais amorphous tuaj yeem txo qhov hnyav ntawm qhov hloov pauv ntau dua 50% thiab qhov kub thiab txias nce li 50%.

Tom qab xyoo ntawm txoj kev loj hlob, amorphous thiab nanocrystalline hlau cores tau dav siv nyob rau hauv high zaus transformers, tam sim no transformers, switching power supply, electromagnetic compatibility khoom thiab lwm yam kev siv.