Lub hauv paus ntsiab lus ntawm kev hloov hluav taws xob hauv hluav taws xob motors

Lub zog hloov lub hauv paus ntsiab lus ntawm lub tshuab hluav taws xob yog hais txog nws cov txheej txheem tseem ceeb ntawm kev hloov hluav taws xob hluav taws xob rau hauv lub tshuab hluav taws xob, uas yog raws li cov cai ntawm electromagnetic induction thiab electromagnetic force (Ampere's Law)

Tshwj xeeb, lub cev muaj zog ua tiav lub zog hloov dua siab tshiab los ntawm kev sib cuam tshuam ntawm electromagnetic ntawm stator thiab rotor: lub stator winding generates magnetic teb tom qab energized, uas interacts nrog tam sim no nyob rau hauv lub rotor conductor los tsim electromagnetic quab yuam (Lorentz quab yuam), yog li tsim lub torque uas tsav lub rotor tig, thiab thaum kawg lub zog hloov mus rau hauv cov khoom siv hluav taws xob.

 

Lub hauv paus ntsiab lus ntawm kev hloov hluav taws xob hauv hluav taws xob motors

Electromagnetic induction thiab electromagnetic quab yuam: Thaum tam sim no dhau los ntawm tus neeg xyuas pib ntawm lub cev muaj zog (xws li stator winding), ib qho chaw sib nqus yog tsim nyob ib ncig ntawm nws; Cov hlau nplaum sib cuam tshuam nrog tam sim no hauv lub rotor, thiab raws li Ampere txoj cai ntawm lub zog, tus neeg xyuas pib raug rau lub zog uas ua rau lub rotor tig.

Txoj kev hloov hluav taws xob: Tom qab lub zog hluav taws xob nkag mus rau hauv lub cev muaj zog, nws tau hloov mus rau hauv kev sib hloov ntawm lub rotor (mechanical zog) los ntawm electromagnetic induction thiab electromagnetic force, uas tsav lub load sab nraud ua haujlwm.

Cov qauv tseem ceeb: Lub cev muaj zog yog tsim los ntawm stator (taw ib feem, tsim cov hlau nplaum) thiab rotor (rotating ib feem, nqa tam sim no). Qee lub cev muaj zog kuj suav nrog lub commutator (DC lub cev muaj zog) lossis lub tshuab hloov zaus (AC lub cev muaj zog) kom tswj tau lub zog unidirectional.

 

Kev faib tawm thiab kev ua haujlwm ntawm cov motors

Cov motors hluav taws xob tuaj yeem muab faib ua DC motors thiab AC motors raws li lawv cov khoom siv hluav taws xob. Ntawm lawv, AC motors tau siv dav hauv cov tshuab hluav taws xob, suav nrog cov motors synchronous thiab asynchronous motors (asynchronous motors muaj rotor speeds uas tsis synchronized nrog stator magnetic teb speeds)

6. Lub rotating magnetic teb ntawm AC lub cev muaj zog yog tsim los ntawm peb -theem sib npaug tam sim no dhau los ntawm stator windings nrog qhov sib txawv ntawm 120 degree,

Ntawm lawv, (omega =2 \\ pi f) yog lub angular zaus, (f) yog lub zog zaus, (p) yog logarithm ntawm ncej, thiab synchronous ceev (n0=60f / p)

7.Lub rotor ceev ntawm lub asynchronous lub cev muaj zog (n=(1- s) n0) ib txwm lags qab lub synchronous ceev, muab nws lub ntuj mos pib muaj peev xwm vim nws "asynchronous" yam ntxwv

 

Keeb kwm keeb kwm thiab daim ntawv thov

Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm lub tshuab hluav taws xob pib los ntawm qhov tam sim no sib nqus cov nyhuv pom los ntawm Auster hauv 1820, thiab tom qab ntawd Faraday tau tsim thawj lub tshuab hluav taws xob hauv xyoo 1821.

6. Niaj hnub nimno motors tau siv dav hauv kev lag luam, kev thauj mus los, thiab cov khoom siv hauv tsev, thiab lawv lub zog hloov pauv tau nyob ntawm hom, tsim, thiab kev siv. Piv txwv li, AC motors feem ntau ua tau zoo dua li DC motors

1. Nrog rau kev txhim kho cov ntaub ntawv tshawb fawb thiab kev tswj hwm thev naus laus zis, lub cev muaj zog tau hloov zuj zus mus rau lub zog siab dua thiab kev txawj ntse.

Lub tshuab hluav taws xob siv lub hauv paus ntsiab lus ntawm lub zog ua haujlwm ntawm tus neeg xyuas pib hluav taws xob hauv qhov chaw sib nqus (uas txawv ntawm qhov sib nqus ntawm cov hluav taws xob tam sim no, thiab tam sim no Tib Neeg Txoj Kev Kawm Xovxwm cuaj qib physics kom meej meej cais ob). Qhov kev tshawb pom ntawm lub hauv paus ntsiab lus no yog tsim los ntawm Danish physicist Oster, yug thaum Lub Yim Hli 14, 1777, hauv tsev neeg kws muag tshuaj hauv Rudjobin, Langlong Island. Nyob rau hauv 1794, nws tau mus kawm nyob rau hauv University of Copenhagen thiab tau txais nws tus kws kho mob℃nyob rau hauv 1799. Los ntawm 1801 txog 1803, nws tau mus xyuas lub teb chaws xws li lub teb chaws Yelemees thiab Fabkis thiab ntsib ntau physicists thiab chemists. Los ntawm 1806, nws tau ua tus xibfwb ntawm physics ntawm University of Copenhagen, thiab los ntawm 1815, nws tau los ua Tus Thawj Coj ntawm Royal Danish Society. Xyoo 1820, nws tau txais txiaj ntsig Copley Medal ntawm Royal Society of England rau nws qhov kev tshawb pom zoo ntawm cov hluav taws xob tam sim no sib nqus.

Txij li xyoo 1829, nws tau ua tus thawj coj ntawm Copenhagen Institute of Technology. Nws tuag thaum Lub Peb Hlis 9, 1851 hauv Copenhagen. Nws tau tshawb fawb ntau hauv physics, chemistry, thiab kev xav. Vim yog lub hwj chim ntawm Kant lub tswv yim thiab Schelling lub ntuj lub tswv yim, kuv ntseeg ruaj khov tias lub zog ntuj tuaj yeem hloov mus rau ib leeg, thiab tau tshawb nrhiav ntev txog kev sib txuas ntawm hluav taws xob thiab hlau nplaum. Thaum lub Plaub Hlis 1820, qhov tshwm sim ntawm hluav taws xob tam sim no ntawm cov koob sib nqus, uas yog qhov sib nqus ntawm cov hluav taws xob tam sim no, tau tshawb pom thaum kawg. Thaum Lub Xya Hli 21 ntawm tib lub xyoo, nws tau tshaj tawm nws qhov kev tshawb pom nyob rau hauv lub npe "Kev sim ntawm hluav taws xob tsis sib haum xeeb ntawm rab koob sib nqus". Cov ntawv luv luv no ua rau muaj kev poob siab loj hauv zej zog European physics, ua rau muaj qhov tshwm sim ntawm ntau qhov kev sim thiab yog li qhib qhov chaw tshiab ntawm physics - electromagnetism.

Structure Classification

1, Cov qauv ntawm peb -theem asynchronous lub cev muaj zog muaj stator, rotor, thiab lwm yam khoom siv.

(1) Stator (qhov chaw nres tsheb)

1. Stator hlau core

Muaj nuj nqi: Raws li ib feem ntawm lub cev muaj zog magnetic Circuit Court, thiab nyob rau hauv uas stator winding yog muab tso rau.

Kev tsim kho: Cov tub ntxhais stator feem ntau yog ua los ntawm kev xuas nrig ntaus thiab laminating silicon steel nplooj ntawv nrog rwb thaiv tsev txheej ntawm qhov chaw ntawm 0.35 ~ 0.5 millimeters tuab. Muaj cov qhov sib npaug sib npaug sib npaug hauv lub voj voog sab hauv ntawm cov tub ntxhais rau embedding stator winding.

Muaj ntau ntau hom stator core slot hom:

Ib nrab kaw qhov: Qhov ua tau zoo thiab lub zog ntawm lub cev muaj zog yog siab, tab sis winding embedding thiab rwb thaiv tsev yog qhov nyuaj. Feem ntau siv rau hauv me me -voltage motors.

Ib nrab qhib qhov: muaj peev xwm embedding molded windings, feem ntau yog siv rau loj thiab nruab nrab-qhov loj me-voltage motors. Qhov li-hu ua winding yog hais txog cov winding uas tuaj yeem raug insulated ua ntej muab tso rau hauv qhov.

Qhib qhov: siv rau embedding molded windings, nrog yooj yim rwb thaiv tsev txoj kev, mas siv nyob rau hauv siab -voltage motors.

 

2. Stator winding

Kev Ua Haujlwm: Nws yog ib feem ntawm lub tshuab hluav taws xob, uas tau muab nrog peb -theem AC lub zog los tsim kom muaj qhov sib nqus sib nqus.

Kev tsim kho: Ua los ntawm peb qhov zoo tib yam windings teem symmetrically ntawm lub kaum sab xis hluav taws xob ntawm 120℃hauv qhov chaw, txhua lub kauj ntawm cov windings yog kos rau hauv ib qho qauv hauv txhua qhov ntawm lub stator.

Muaj peb yam tseem ceeb rwb thaiv tsev rau stator windings: (kom ntseeg tau tias muaj kev ruaj ntseg rwb thaiv tsev ntawm cov conductive qhov chaw ntawm lub winding thiab cov tub ntxhais hlau, raws li zoo raws li txhim khu kev qha rwb thaiv tsev ntawm lub windings lawv tus kheej).

⑴ Kev rwb thaiv tsev hauv av: Kev rwb thaiv tsev ntawm tag nrho stator winding thiab stator core.

⑵ Inter theem rwb thaiv tsev: Lub rwb thaiv tsev ntawm stator windings ntawm txhua theem.

⑶ Interturn rwb thaiv tsev: rwb thaiv tsev ntawm lem ntawm txhua stator winding ntawm txhua theem.

Cov kab mob hauv lub cev muaj zog junction box:

Muaj lub davhlau ya nyob twg hauv lub thawv sib txuas lub cev muaj zog, thiab rau lub xaim kawg ntawm peb -theem winding yog teem rau hauv ob kab, nrog rau kab sab sauv ntawm peb lub davhlau ya nyob twg tau teem los ntawm sab laug mus rau sab xis suav 1 (U1), 2 (V1), thiab 3 (W1), thiab kab qis ntawm peb lub davhlau ya nyob twg), thiab sab xis ntawm U 2 (txog 6) (V2). Txuas peb-theem winding nyob rau hauv lub hnub qub los yog delta kev twb kev txuas. Txhua qhov kev tsim khoom thiab kev saib xyuas yuav tsum tau teem caij raws li tus lej xov tooj no.

 

3. Tshuab puag

Muaj nuj nqi: Txhim kho lub stator core thiab pem hauv ntej thiab nram qab lub kaus mom los txhawb lub rotor, thiab muab kev tiv thaiv, tshav kub dissipation, thiab lwm yam dej num.

Kev tsim kho: Lub hauv paus feem ntau yog ua los ntawm cam khwb cia hlau. Lub hauv paus ntawm asynchronous motors loj yog feem ntau welded nrog steel daim hlau, thaum lub hauv paus ntawm micro motors yog ua los ntawm cam khwb cia txhuas. Lub cev muaj zog muaj cua sov dissipation tav nyob rau sab nraud ntawm lub hauv paus los ua kom lub tshav kub dissipation cheeb tsam, thaum lub cev muaj zog tiv thaiv muaj qhov cua ntawm ob sab ntawm lub hauv paus npog kom tso cai ncaj qha convection ntawm huab cua sab hauv thiab sab nraud lub cev muaj zog, yooj yim rau cua sov dissipation.