Ib tug zoo-paub kauj ruam-up transformer ...

Txhua cheeb tsam nws muaj nws tus kheej technology iconic ntaus ntawv, tab tom nrhiav nyob rau ntawm lub uas twv yuav raug hu paub dab tsi, qhov twg, yuav ua li cas. Sail - yog lub hiav txwv, yachts, ships. Kiv cua - aviation, aircraft, log - tsheb kauj vab, tsheb, thiab lwm yam Thiab peb yeej tsis muaj kev cuam tshuam rau qhov tseeb hais tias thaum cov tam sim no yooj yim thiab meej xws li twb tom ntej no, qee zaum nyuaj heev kauj ruam nyob rau hauv txoj kev loj hlob ntawm ib tug tag nrho ceg ntawm engineering los yog mechanical engineering.

Xws li ib tug keeb kwm thiab ib tug zoo-paub tus neeg sawv cev ntawm hluav taws xob engineering - transformer. Nyob rau hauv twb nyob deb 1831 Faraday nkag mus hauv lub keeb kwm ntawm lub foundations ntawm electromagnetic induction - qhov yooj yim hauv paus ntsiab lus ntawm cov lag luam ntawm lub transformer. Tsuas yog tom qab 45 xyoo, Lavxias teb sab neeg kawm xaij PN Yablochkov twb pom ib tug patent rau lub invention ntawm lub transformer. Lub ob coils muaj nyob rau ntawm qhib cov tub ntxhais, paub tseeb hais tias cov tseem mus txia, uas yog, hloov, hloov currents thiab voltages. Cov thawj heev tau ua los transformer. Niaj hnub nimno transformers muaj qhov ntev ntawm lub vaj tse ntawm ob peb cov plag tsev rau lub me me khoom no yog tsawg tshaj li 1 cm, thiab lawv ntau lawm - yog tus ua ceg ntawm qhov hluav taws xob kev lag luam.

Cov txheej txheem yog siv ib tug zoo tus naj npawb ntawm transformers sib txawv ntawm cov hom phiaj thiab txhua tus nws muaj nws tus kheej tej npe. Piv txwv li, lub thoob plaws siv cov hluav taws xob muaj ib kauj ruam-up voltage transformer, uas yog nyob rau ntawm ib tso zis voltage ntawm ob peb kilovolts yog cov mov voltage ntawm 220 V.

Yog li, lub transformer - yog dab tsi? Lub classic txhais yog raws li nram no: Transformer - yog ib tug hluav taws xob tshuab uas converts lub tswv yim hwj chim qhov twg los tam sim no mus rau hauv lub thib ob winding nrog ib tug txawv voltage. Lub transformer ua hauj lwm nrog cov AC voltage, vim hais tias induction cov nyhuv yog pom xwb thaum lub electromagnetic teb. Lub hloov lwm lub (transformation) ntawm lub zog kis los ntawm tus hloov dua siab tshiab ntawm hluav taws xob lub zog nyob rau hauv lub windings nyob rau hauv thawj magnetic teb, thiab ntxiv - ib txoj kev hloov rov qab mus rau qhov hluav taws xob tam sim no lub zog, tab sis nyob rau hauv lub thib ob winding. Yog hais tias lub qhov winding rau tus xov tooj ntawm koj lem tshaj thawj, peb muaj ib kauj ruam-up transformer, thiab yog hais tias koj txuas lub windings on qhov tsis tooj, lub transformer yuav "rov qab" - yuav txo tau.

Piv txwv hais tias koj xav tau nyob rau hauv lub chav nres tsheb, uas muaj ib tug hluav taws xob 36V network, txuas qhov hluav taws xob loads, xws li them tsev akkamuljatora powered 220 - ib tug raug cov ntaub ntawv nyob rau hauv thiaj li thov ib kauj ruam-up transformer. Cov tshuaj ntawm qhov teeb meem no, peb xav txog cov tswv yim cov kauj ruam.

1. fais fab charger yuav coj los ntawm cov phau ntawv hla tebchaws - feem ntau tej zaum yuav nws yuav ib yam dab tsi zoo li 100 watts. Paub tias yeej ib txwm yuav tsum muaj ib tug paj tau paj rau lub neej yav tom ntej thiab nyob rau hauv view ntawm lub neej yav tom ntej efficiency ntawm lub transformer ntawm txog 0.9, tus tau txais hwj chim ntawm tus thawj winding 150W.

2. Xaiv tus quab. Nws yog ib qho yooj yim los tswj lub O-zoo li tus magnetic tub ntxhais (lub qub TV). Peb yuav tau siv tej, nws tus ntoo khaub lig seem yog me dua kwv yees los ntawm cov kev sib raug zoo: P 1 = S * S / 1,44, qhov twg P1 thiab S - transformer hwj chim nyob rau hauv watts thiab cov tub ntxhais tus ntoo khaub lig-section nyob rau hauv square cm. Lub xam muab ib tug nqi ntawm S = 10,2 cm2.

3. Cov kauj ruam tom ntej yog qhov tseem ceeb ntawm cov "siv" ntawm lub transformer - yog txiav txim los ntawm tus xov tooj ntawm koj lem rau 1B: N = 50 / S = 50 / 10.2 = 4.9 lem / nyob rau hauv. Tam sim no nws yog ib qho yooj yim mus xam tus naj npawb ntawm lem (los yog, raws li "winding cov ntaub ntawv"), thawj thiab windings: W1 = 36 * N = 176 lem thiab W2 = 220 * 5 = 1078 lem.

4. Txhais winding currents. Peb sav ua ntej tias lub hwj chim ntawm txhua tus ntawm cov windings ntawm txog 150 watts. Nyob rau hauv cov ntaub ntawv no, kev khiav hauj lwm tam sim no windings: J1 = 150/36 = 4,2A thiab J2 = 150/220 = 0,7A.

5. Tam sim no koj muaj tag nrho cov ntaub ntawv los mus txiav txim lub diameters ntawm cov nyob ntawm tej ntawm lub windings. Peb yuav ua li ntawd: rau cov thawj kauj D1 = 0,8 * √J1 = 0,8 * 2,05 = 1,64mm sq. ;

piv rau cov theem nrab winding D2 = 0,8 * √J2 = 0,8 * 0,84 = 0,67 hli square.

Winding coils xaiv diameters los ntawm txheej txheem.

Txhua yam! Lub xam yog lawm, tab sis yuav ua tau ib kauj ruam-up transformer nrog lawv ob txhais tes? Raws li lawv hais - muaj tsis muaj dab tsi yooj yim, yog tias phem heev uas yuav tsum tau. Qhov tiag yuav tsum tau - nws yog lub ntsiab tsav tsheb quab yuam diy, yog li ntawd ntxiv leeg, leeg.

6. Ua ob cev rau ib tug xaiv magnetic Circuit Court.

7. ntas tuab stacking yog lub qhov txhab los ntawm ib nrab ib tug thawj winding thiab cais tawm nws glass- los yog varnished.

8. Tom ntej no, stacked nyob rau txhua ncej los ntawm ib nrab ntawm cov theem nrab winding thiab kuj npog lawv varnished.

9. Cov rooj sib txoos ntawm cov magnetic Circuit Court, coupler quab qhov chaw - qhov teeb meem yog tsis heev nyuaj. Nyob rau hauv assembling lub magnetic tub ntxhais halves yog ntshaw kom muab tej pes tsawg leeg siv ferroporoshka - qhov no yuav cais "buzzing" ntawm lub ntaus ntawv thaum lub sij hawm lub lag luam.

Tus ntawd yog nws! Peb lub tsev ua, peb yuav tsum tsis txhob xav tias yuav ua hauj lwm rau ib tug ntev lub sij hawm thiab kev xyiv fab. Thiab leej twg yuav tsis ntseeg!