Lub invention ntawm asynchronous motors tau revolutionized tib neeg kev vam meej. Niaj hnub no, cia peb tshawb nrhiav cov haujlwm sab hauv ntawm asynchronous motors. Asynchronous motors feem ntau yog tsim los ntawm ob yam: stator thiab rotor. Lub stator yog ib lub kauj nrog peb windings uas yog powered los ntawm peb-theem AC hluav taws xob.
Lub winding hla los ntawm stator slots, uas yog ua los ntawm stacked nyias steel nplooj ntawv nrog siab permeability. Thaum peb-theem tam sim no ntws los ntawm qhov winding no, nws tsim ib qho rotating magnetic teb, uas yog qhov ua rau lub rotor tig. Yuav kom nkag siab txog yuav ua li cas lub rotating magnetic teb yog generated thiab nws cov yam ntxwv, lub stator yuav ua tau yooj yim.
Peb coils txuas nrog ntawm 120 degrees, tsim kom muaj ib qho chaw sib nqus nyob ib puag ncig lawv thaum lub sijhawm tam sim no dhau mus. Thaum muaj peb-theem fais fab mov siv rau qhov kev npaj tshwj xeeb no, cov khoom tsim hluav taws xob sib nqus hloov cov kev taw qhia nrog cov hloov tam sim no ntawm lub sijhawm tshwj xeeb. Los ntawm kev sib piv peb cov piv txwv no, peb tuaj yeem soj ntsuam qhov sib nqus sib nqus nrog qhov sib xws. Qhov ceev ntawm qhov sib nqus teb rotates yog hu ua synchronous ceev. Cia peb xav txog tus neeg xyuas pib kaw rau hauv qhov chaw sib nqus rotating no.
Raws li Faraday txoj cai, ib qho kev hloov magnetic teb induces ib tug electromotive quab yuam nyob rau hauv ib tug Circuit Court, uas nyob rau hauv lem generates hluav taws xob tam sim no. Qhov tshwm sim no zoo ib yam li lub voj voog tam sim no nyob rau hauv ib qho chaw sib nqus, uas ua rau lub zog hluav taws xob ntawm lub voj thiab ua rau nws pib tig. Tib yam tshwm sim tshwm sim nyob rau hauv lub asynchronous lub cev muaj zog, qhov twg es tsis txhob ntawm ib tug yooj yim voj, ib yam dab tsi zoo li ib tug squirrel tawb yog siv. Lub rotating magnetic teb yog tsim los ntawm peb-theem alternating tam sim no dhau los ntawm stator.
Hauv qhov piv txwv yav dhau los, qhov tam sim no yuav raug ntxias hauv cov squirrel tawb tuav ntawm lub nplhaib luv-circuited kawg. Yog li ntawd, lub rotor yuav pib tig. Qhov no yog vim li cas vim li cas hom lub cev muaj npe hu ua induction motor.
Hloov chaw ncaj qha mus rau lub rotor los tsim hluav taws xob, electromagnetic induction yog siv. Rwb thaiv tsev hlau core nplooj ntawv tau sau rau hauv lub rotor kom ua tiav qhov no. Los ntawm kev siv cov ntawv hlau me me no, lub tshuab hluav taws xob induction txo qis eddy tam sim no poob thiab muaj txiaj ntsig zoo. Nws yog qhov tseem ceeb ntawm tus kheej pib, raws li ob qho tib si lub teb sib nqus thiab lub rotor yog tig. Txawm li cas los xij, qhov ceev ntawm lub rotor yog dab tsi?
Yuav kom tau txais cov lus teb rau lo lus nug no, peb yuav tsum xav txog ntau yam xwm txheej. Cia peb xav txog cov ntaub ntawv uas qhov ceev ntawm lub rotor yog tib yam li qhov ceev ntawm lub magnetic teb. Txij li thaum ob qho tib si tig ntawm tib lub nrawm, cov hlau nplaum yuav tsis txiav tawm lub voj. Yog li ntawd, tsis muaj induced electromotive quab yuam los yog tam sim no yuav raug generated. Qhov no yuav ua rau lub zog hloov pauv ntawm cov rotor tuav. Lub rotor yuav maj mam qeeb, thiab raws li qhov ceev txo, lub magnetic teb yuav txiav tawm lub rotor circuit. Yog li ntawd, qhov induced tam sim no thiab quab yuam yuav sawv dua. Tom qab ntawd lub rotor yuav nrawm. Nyob rau hauv luv luv, lub rotor yuav tsis muaj peev xwm ntes tau nrog ceev ntawm lub magnetic teb.