Kev ua haujlwm ntawm kev hloov pauv fais fab mov transformer
Lub tshuab hluav taws xob hloov hluav taws xob hloov pauv thiab lub raj hloov pauv ua ke tsim ib tus kheej zoo siab tsis sib xws oscillator, yog li hloov pauv cov khoom siv hluav taws xob DC mus rau hauv qhov hluav taws xob ntau zaus.
Nws plays lub luag hauj lwm ntawm lub zog hloov thiab hloov dua siab tshiab. Nyob rau hauv lub flyback Circuit Court, lub transformer converts hluav taws xob lub zog rau hauv magnetic teb lub zog yuav tsum tau muab cia thaum lub hloov raj yog qhib, thiab nws yog tso tawm thaum lub hloov raj yog muab tua. Nyob rau hauv pem hauv ntej Circuit Court, thaum lub hloov raj yog qhib, lub input voltage yog ncaj qha mus rau lub load thiab lub zog yog muab cia rau hauv lub zog cia inductor. Thaum lub tshuab hluav taws xob tau muab tua, lub zog cia inductor txuas ntxiv mus rau lub nra.
Hloov cov input DC voltage rau hauv ntau yam tsawg voltages.
Classification ntawm switching fais fab mov transformers
Switching fais fab mov transformers tau muab faib ua ib leeg-excitation switching fais fab mov transformers thiab ob-excitation switching fais fab mov transformers, thiab lawv cov qauv kev ua hauj lwm thiab cov qauv tsis zoo ib yam. Lub input voltage ntawm ib leeg-excitation switching fais fab mov transformer yog unipolar mem tes, thiab nws kuj tau muab faib ua rau pem hauv ntej thiab rov qab excitation voltage tso zis; Lub input voltage ntawm ob-excited switching fais fab mov transformer yog bipolar mem tes, uas feem ntau yog bipolar pulse voltage tso zis.
Yam ntxwv parameter ntawm switching fais fab mov transformer
Voltage ratio: yog hais txog qhov piv ntawm thawj voltage rau theem nrab voltage ntawm transformer.
DC tsis kam: tooj liab tsis kam.
Kev ua tau zoo: piv txwv li tso zis hluav taws xob / lub zog hluav taws xob * 100[%]
Rwb thaiv tsev tsis kam: rwb thaiv tsev muaj peev xwm ntawm windings thiab cov tub ntxhais ntawm transformer.
Lub zog hluav taws xob: qib uas lub tshuab hloov hluav taws xob tuaj yeem tiv taus qhov ntsuas hluav taws xob hauv 1 thib ob lossis 1 feeb.
Kev sib xyaw ntawm cov khoom siv hluav taws xob hloov pauv hloov pauv
Cov ntaub ntawv tseem ceeb ntawm kev hloov hluav taws xob hloov hluav taws xob: cov khoom sib nqus, cov khoom siv hlau thiab cov khoom siv rwb thaiv tsev yog lub hauv paus ntawm kev hloov hluav taws xob transformer.
Cov ntaub ntawv sib nqus: Cov khoom siv sib nqus siv hauv kev hloov pauv hloov pauv yog cov ferrite mos, uas tuaj yeem muab faib ua MnZn series thiab NiZn series raws li lawv muaj pes tsawg leeg thiab daim ntawv thov zaus. Cov qub muaj siab permeability thiab siab saturation magnetic induction, thiab tsawg poob nyob rau hauv nruab nrab thiab tsawg zaus ntau yam. Muaj ntau cov duab sib nqus, xws li EI hom, E hom thiab EC hom.
Hlau khoom-enameled hlau: Feem ntau, enameled xov hlau siv rau winding me me hluav taws xob transformers muaj xws li high-strength polyester enameled hlau (QZ) thiab polyurethane enameled hlau (QA). Raws li lub thickness ntawm cov xim txheej, lawv tuaj yeem muab faib ua ob hom: hom 1 (hom xim nyias) thiab hom 2 (hom xim tuab). Lub rwb thaiv tsev txheej ntawm yav dhau los yog polyester xim, uas muaj superior tshav kub tsis kam, thiab rwb thaiv tsev tsis kam mus txog 60kv / mm; Cov txheej txheej insulating ntawm lub tom kawg yog cov xim polyurethane, uas muaj zog ntawm nws tus kheej-adhesion thiab nws tus kheej-welding kev ua tau zoo (380 degree), thiab tuaj yeem ncaj qha welded yam tsis tau tshem cov xim zaj duab xis.
Siab-rhiab nplaum daim kab xev: insulating daim kab xev muaj zog hluav taws xob, yooj yim siv thiab zoo txhua yam khoom, thiab yog dav siv nyob rau hauv interlayer rwb thaiv tsev, inter-pawg rwb thaiv tsev thiab sab nraud rwb thaiv tsev ntawm switching transformer coils. Nws yuav tsum ua tau raws li cov cai hauv qab no: zoo adhesion, tiv thaiv kev laus, qee lub zog tensile, kev ua haujlwm zoo rwb thaiv tsev, zoo siab tsis kam, nplaim hluav taws kub thiab kub tsis kam.
Cov khoom siv pob txha: Cov pob txha ntawm kev hloov pauv hloov pauv txawv ntawm cov pob txha hloov pauv dav dav, uas tsis yog tsuas yog ua haujlwm ua cov rwb thaiv tsev thiab cov khoom txhawb nqa rau lub kauj, tab sis kuj tseem ua lub luag haujlwm ntawm kev teeb tsa, kho thiab qhov chaw ntawm tag nrho cov transformer. Yog li ntawd, cov khoom siv los ua cov pob txha pob txha yuav tsum tsis tsuas yog ua tau raws li qhov xav tau ntawm rwb thaiv tsev, tab sis kuj muaj lub zog tensile ntau. Nyob rau tib lub sijhawm, txhawm rau tiv thaiv cov vuam kub ntawm tus pin, lub thermal deformation kub ntawm cov khoom siv pob txha yuav tsum siab tshaj 200 degree, thiab cov khoom yuav tsum yog nplaim hluav taws, thiab nws kuj yuav tsum ua tau zoo hauv kev ua haujlwm thiab yooj yim rau kev ua rau ntau yam duab.
