Nyob rau hauv high - Hwj Chim DC Systems, ib tug relay ua ntau tshaj nkaus li hloov chaw ntawm thiab tawm. Nws yog qhov kev nyab xeeb tseem ceeb thiab tswj hwm. Qhov no muaj tseeb tshwj xeeb tshaj plaws hauv kev nyuaj ib puag ncig ntawm cov roj teeb them hluav taws xob.
Tsis tu ncua, txhua {{{- hom rov qab nthuav dav thaum siv hauv DC roj teeb them raws li kev them. Lub teeb meem hluav taws xob tshwj xeeb yog qhov khaus. Loj heev inrush tau ntaus cov kab ke. Break ncaj qha tam sim no yog qhov nyuaj heev. Cov xwm txheej no tuaj yeem ua rau muaj kev sib tw vuam lossis ua tiav tsis tiav.
Peb tsim cov tshuab rau cov tsheb hluav taws xob (EVS), cov cuab yeej siv hluav taws xob, thiab thaub qab fais fab khoom (UPS). Hauv cov ntawv thov no, koj yuav tsum siv cov npe tshwj xeeb. Tsis muaj kev txhaum thaum nws los txog kev ua tau zoo, kev nyab xeeb, thiab ntev- sij hawm kev ntseeg tau.
Cov khoom siv no yog cov interface tseem ceeb rau kev tiv thaiv Circuit Court thiab tswj kev tswj hwm. Lawv yuav tsum lis siab inrush rurents thiab muab kev txhim khu kev qha. Qhov muaj peev xwm no yog qhov tseem ceeb rau kev tsim muaj zog.
Cov lus qhia no muab rau koj ua tiav ntawm kev txhim kho lub tshuab roj teeb niaj hnub. Peb yuav tshawb txog yam uas lawv ua, tus tseem ceeb tshwj xeeb los kuaj, thiab txoj kev yuav xaiv txoj cai rau koj tus qauv.
Qhov kev tiv thaiv tseem ceeb thiab tswj kev ua haujlwm ntawm cov khoom tawg no.
Cov hluav taws xob tseem ceeb thiab lub cev nta rau nrhiav.
Yuav ua li cas xaiv txoj cai relay rau koj daim ntawv thov tshwj xeeb.
Lub luag haujlwm tseem ceeb hauv kev them cov tshuab
Txhawm rau tsim kom muaj kev nyab xeeb thiab txuag hluav taws xob, peb yuav tsum xub nkag siab ib yam tseem ceeb. Cov relay ua tau ntau txoj haujlwm sib txawv thiab tseem ceeb tshaj plaws. Nws yog ntau tshaj qhov yooj yim ntawm / tawm ntaus ntawv. Nws yog ib tus thawj coj ntse ua rau lub Glovereen rau siab - voltage, siab- lub zog tam sim no.
Cov cwj pwm no poob rau hauv peb lub luag haujlwm tseem ceeb. Ua ntej yog cellCuit tswj loj. Qhov thib ob yog luv - Circuit Court tiv thaiv. Peb yog thim rov qab polarity kev tiv thaiv. Txhua txoj haujlwm ua haujlwm rau qhov kev sib tw tshwj xeeb uas los nrog tswj cov roj teeb loj.
Nkag siab cov haujlwm no muab rau koj cov ntsiab lus teb koj xav tau. Nws piav qhia yog vim li cas cov txuj ci tshwj xeeb, uas peb yuav tham txog tom qab, tseem ceeb heev.
Kev tswj hwm Circuit Court
Tus Repay lub luag haujlwm tseem ceeb tshaj plaws yog txuas thiab txuas cov roj teeb ntawm lub charger. Nyob rau hauv high - fais fab kab, nws feem ntau hu ua tus neeg sau npe.
Txawm li cas los xij, tus txheej txheem no tsis yooj yim xws li ntxeev mus. Niaj hnub nempers muaj cov tswv yim loj inventacitors. Thaum koj txuas tus nqi tawm hauv lub peev hluav taws xob hauv tuam txhab nyiaj ncaj qha rau lub siab {2} {{luv {{4 4}} circuitions. Qhov no kav ntev li ob peb milliseconds.
Qhov tshwm sim yog qhov loj heev nyob rau hauv tam sim no. Txhawm rau tiv thaiv qhov no, peb siv ua ntej - txoj kev them nyiaj. Ib qho me dua, ib tus lej relay kaw ua ntej. Nws txuas lub roj teeb mus rau lub capacitors los ntawm lub zog tiv thaiv.
Tus neeg tiv paus no txwv qhov tam sim no. Nws tso cai rau lub capacitors saib xyuas maj mam thiab nyab xeeb. Thaum lub peev hluav taws xob tau nce ze rau lub roj teeb voltage, lub ntsiab relay kaw. Qhov no bypasses lub pre- them resistore thiab muab txoj kev them nyiaj tam sim no nrog kev ntxhov siab tsawg.
Cov kab sib kev ua ntu zus no tiv thaiv hluav taws xob ua haujlwm thiab kev ntxhov siab rau cov neeg xa xov tseem ceeb. Nws ua kom ntev ntxiv cov neeg xa khoom ntawm lub neej thiab tiv thaiv kev sib tw vuam. Cov relay yuav tsum muaj kev nyab xeeb kom muaj kev nyab xeeb ntawm Circuit Court. Qhov no suav nrog ob qho tib si nyob rau hauv tag nrho cov chaw nyob rau thaum muaj xwm txheej ceev thiab tsis muaj - kev thauj khoom thaum them tas.
Qhov tseem ceeb Kev Nyab Xeeb Kuv: Luv luv - Circuit Court
Thaum muaj kev puas tsuaj loj tshwm sim tshwm sim hauv cov dej ntws tawm, cov relay ua haujlwm ua kab kawg ntawm kev tiv thaiv. Qhov no tuaj yeem yog lub sijhawm luv luv ntawm lub charger lub zog hluav taws xob.
Lub roj teeb tswj kev tswj hwm (BMS) tsis tu ncua saib xyuas cov Circuit Court. Yog tias nws tshawb pom qhov txhaum tam sim no uas tau ua rau kev txwv nyab xeeb tshaj plaws, nws tam sim ntawd teeb tsa cov relay qhib.
Cov relay yuav tsum lub cev cais cov roj teeb ntawm cov kab ke. Qhov no muaj qhov ua txhaum thiab tiv thaiv kev ua haujlwm hluav taws lossis roj teeb. Qhov no yuav tsum muaj kev zam luv luv - Circuit Court tam sim no wittand muaj peev xwm.
Cov neeg sib tiv tauj rov muag yuav tsum tsis txhob weld kaw hauv qab lub zog hluav taws xob tsis loj hauv qhov txhaum. Nws yuav tsum muaj sia nyob ntev txaus kom tau txais cov lus qhib los ntawm BMS. Tom qab ntawd nws yuav tsum ua tiav qhov Circuit Court.
Txhawm rau qhia koj cov nplai, cov neeg ua txhaum hauv 800v at roj teeb pob tuaj yeem tshaj 10,000a. Lub cuab yeej siv hluav taws xob tej zaum yuav qis dua, tab sis cov ntsiab cai yog tib yam. Cov relay yuav tsum ua kom ruaj khov txaus los ua haujlwm nyob rau hauv qhov phem tshaj - cov xwm txheej.
Qhov tseem ceeb kev nyab xeeb II: Rov qab polarity
Ib qho kev siv cov neeg siv yuam kev yog txuas rau lub roj teeb mus rau lub charger nrog cov chaw zoo thiab tsis zoo thim rov qab. Qhov kev ua yuam kev yooj yim no tuaj yeem rhuav tshem lub charger cov khoom siv hluav taws xob. Nws tuaj yeem muaj kev puas roj teeb ib yam nkaus.
Ib qho dej -} Tsim cov nqi them them rau cov kev siv hluav taws xob kom tiv thaiv qhov no. Lub Circuit haum tau yooj yim tuaj yeem txheeb xyuas qhov kev thim rov qab polarity mob. Qhov no feem ntau siv cov diode lossis lub ntsuas hluav taws xob.
Qhov kev kuaj pom qhov no tam sim ntawd cov cim ntsuas chaw tswj lossis BMS. Tus maub los tau thaiv cov "kaw" hais kom ua los ntawm puas tau mus txog relay's coil.
Cov txheej txheem yog qhov yooj yim, cov neeg ruam ua yeeb yam:
Rov qab polarity txuas tau raug kuaj pom ntawm cov lus qhia.
Lub teeb liab tswj rau lub ntsiab relay chev yog inhibited.
Lub relay nyob rau hauv nws lub neej qhib lub xeev.
Tag nrho cov nqi hluav taws xob yog kev tiv thaiv los ntawm kev rov qab voltage.
Qhov kev ua haujlwm no qhia tau lub luag haujlwm ntawm lub luag haujlwm raws li cov khoom tswj tau nyob hauv kev nyab xeeb system. Nws tsis yog tsuas yog ib tus standalone tivthaiv.
Cov yam ntxwv tseem ceeb
Relay rau cov kev siv roj teeb hluav taws xob yog qhov txawv los ntawm cov yam ntxwv rau hluav taws xob. Cov no yog engineered tshwj xeeb rau high- Lub DC daim ntawv thov fais fab. Koj yuav tsis pom cov no hauv AC lossis qis {- Lub Hwj Haug Relays.
Soj ntsuam cov specifications tshwj xeeb ntawm ib feem ntawm datasheet yog qhov tseem ceeb tshaj plaws ntawm cov txheej txheem xaiv. Lawv cuam tshuam ncaj qha rau kev nyab xeeb, ua haujlwm, thiab kev ntseeg tau ntawm koj cov khoom kawg.
Tam sim no peb tshawb nrhiav qhov tseem ceeb tshaj plaws ntawm cov nta no. Cov no suav nrog kev muaj peev xwm tam sim no tam sim no, muaj peev xwm tawg DC cov hluav taws xob, thiab cov hluav taws xob tsawg.
Unmatched inrush tam sim no muaj peev xwm
Peb tau hais hauv Inrush tam sim no ua ntej dhau los hauv cov ntsiab lus ntawm pre - them. Qhov no yog qhov loj, instantaneous kev hloov ntawm tam sim no uas ntws thaum lub zog yog thawj zaug thov siv hluav taws xob.
Xav txog nws yog qhov sib txawv ntawm tus dej khov (txuas ntxiv tam sim no) thiab tsunami (inrush tam sim no). Qhov xwm txheej no yog luv luv, tab sis nws tuaj yeem tsim kom muaj cua sov txaus rau lub sij hawm yaj tau cov nplaim ntawm cov neeg xa khoom.
Yog tias cov neeg tiv toj ze thaum lub sijhawm no, lawv tuaj yeem fuse ua ke. Qhov no hu ua kev sib cuag vuam. Nws ua rau cov relay tsis muaj txiaj ntsig vim tias nws daig mus tas li nyob rau hauv "ntawm" txoj hauj lwm. Qhov no tsim kev phom sij txaus ntshai heev.
Txhawm rau tawm tsam qhov no, rov qab rau roj teeb cov foob tau txais ib qho kev ntsuas tshwj xeeb hauv kev ntaus nqi tam sim no. Piv txwv li, 100a rau 20ms. Qhov no txhais tau tias cov relay yog lav tau kom tiv taus 100-amp ncov rau 20 milliseconds tsis muaj vuam.
Ib qho ntawm - board charger's dc txuas capacitor yuav tsim ib qho hauv nruab nrab ntawm ntau pua amps. Ib 48v lub zog hluav taws xob lub charger yuav nyob hauv kaum ntawm Amps. Sib piv cov relay txoj kev ntaus nqi rau lub kaw lus tau suav lossis ntsuas hauv lub nroog yog qhov tseem ceeb rau kev ntseeg tau.
Kev sib tw ntawm kev rhuav DC
Hloov DC Circuit Court yog ntau nyuaj dua hloov AC Circuit Court. Qhov no yog qhov loj tshaj vim li cas ac baus yuav siv tsis tau rau high- voltage dc cov ntawv thov.
Ac voltage ib txwm kis dhau los ntawm xoom 100 lossis 120 zaug ib thib ob. No xoom -} Hla Taw tes muab lub sijhawm luv luv uas tsis muaj hluav taws xob. Qhov no pab tua hluav taws xob hluav taws xob hluav taws xob uas thaum cov neeg xa khoom sib cais.
Kev ncaj qha tam sim no yeej tsis hla xoom los ntawm nws qhov. Thaum cov neeg tiv tauj qhib hauv qab load, ib qho pheej, siab- lub zog arc cov qauv ntawm lawv. Daim ARC no yog qhov tseem ceeb ntshav. Nws tuaj yeem ua rau cov khoom sib tiv tauj. Yog tias tsis extinguished, nws tuaj yeem tiv thaiv lub hauv paus hniav los ntawm kev qhib siab.
Siab - voltage dc cia siv cov thev naus laus zis ntau dhau los tswj hwm qhov no.
Ib txoj kev tseem ceeb yog hermetic sib khi. Lub chamber sib tiv tauj yog kaw thiab tau muaj nrog lub siab - pa roj. Qhov no feem ntau yog ib qho kev sib xyaw hydrogen thiab nitrogen sib xyaw. Qhov no gas ib puag ncig suppresses tsim ntawm ARC thiab pab kom txias sai.
Lwm cov txheej txheem siv siv cov tshuab sib nqus. Cov hlau nplaum tas mus li tso rau ze rau cov neeg sib cuag. Raws li Arc cov foos, cov tuam txhab sib nqus tshaj tawm ntawm nws (Lorentz quab yuam). Qhov no ncab lub arc txoj kev. Ib lub arc ntev dua muaj kev tiv taus siab dua, uas ua rau nws txias thiab tua hluav taws sai. Cov thev naus laus zis yog qhov tseem ceeb heev rau kev xa tawm lub peev xwm kom thim tawm tam sim no thiab ua tiav lub neej hluav taws xob ntev.
Kev tsis muaj coil fais fab noj
Txhawm rau kom cov neeg xa khoom xa tuaj kaw, nws cov hluav taws xob sab hauv, lossis chev, yuav tsum nyob kom energized. Qhov no coil noj lub zog.
Nyob rau hauv ib qho roj teeb -} powered system, txo cov hwj chim hluav taws xob no yog ib lub hom phiaj tsim qauv. Rau ib tug EV, txhua tus Watt txais kev cawmdim txhais kom me ntsis ntau yam. Rau ib qho cuab yeej ntawm standby, nws txhais tau tias ntev dua lub neej roj teeb.
Cov yam ntxwv tseem ceeb ntawm kev rov siv roj teeb roj teeb suav nrog cov qauv tsim rau kev siv hluav taws xob tsawg. Txoj kev zoo tshaj plaws uas peb ua tiav qhov no yog los ntawm Pulse dav kev ntsuas (PWM) tswj cov coil.
Hloov chaw thov cov hluav taws xob tas li (piv txwv li, 12v) mus rau kauj, tus neeg tsav tsheb Circuit Court thawj zaug thov tag nrho voltage rau ob peb milliseconds. Qhov no yog "tuaj tos" voltage. Nws muab lub zog sib nqus muaj zog xav tau los kaw cov neeg sib cuag tau sai thiab txiav txim siab.
Thaum cov neeg sib cuag raug kaw, tus tsav tsheb hloov mus rau ib lub teeb liab PWM. Nws nrawm pulses lub voltage. Qhov no txo qhov nruab nrab lub zog xa mus rau tus coil rau qis dua "tuav" qib. Qhov kev tuav lub hwj chim no tsuas yog txaus kom cov neeg kaw kaw. Nws feem ntau txo cov coil noj los ntawm 70% lossis ntau dua.
Lub cev thiab kev ntseeg tau nta
Tshaj li cov tub ntxhais hluav taws xob specifications, lub cev siv hluav taws xob, lub cev siv thiab ntev}}}}} lo lus relay yog ib qho tseem ceeb. Cov yam ntxwv no txiav txim siab seb yuav muaj feem yuav muaj sia nyob li cas hauv nws qhov chaw npaj.
Ib tug relay faus sab hauv lub roj teeb pob lossis ntim hauv lub zog hluav taws xob tsis yog ib feem. Nws yuav tsum yog tsim los kav lub neej ntawm cov khoom lag luam hauv qab cov xwm txheej xav tau.
Peb yuav tsum xav txog qhov xwm txheej zoo li qhov loj me, qhov hnyav, cov neeg kho tshuab ua rau cov ntaub ntawv hauv lub neej.
Compact loj thiab tsawg hnyav
Nyob rau hauv yuav luag txhua yam niaj hnub tsim hluav taws xob, chaw thiab qhov hnyav yog nyob rau hauv tus nqi. Qhov no yog qhov tseeb tshwj xeeb rau cov khoom siv hluav taws xob thiab cov tsheb hluav taws xob. Txhua gram thiab cubic centimeter suav.
Relay cov tuam txhab cov tuam txhab fim ib qho kev sib tw uas muaj kev sib tw tseem ceeb. Lawv yuav tsum ntim siab - fais fab hloov lub peev xwm ua hneev me. Qhov no yuav tsum ua tib zoo tsim qauv los tswj thermal dissipation. Lawv kuj yuav tsum muaj kev pheej hmoo ua hluav taws xob kev sib cais (creepage thiab tshem tawm) nruab nrab ntawm siab- voltage terminals.
Cov qauv yog mus rau kev cog lus, lub teeb yuag rov qab tias tsis muaj kev cuam tshuam rau kev ua haujlwm lossis kev nyab xeeb. Qhov no ua rau muaj zog ntau dua -}} tshee cov nqi hluav taws xob.
Siab ntseeg tau thiab lub neej ntev
Ib tug relay lub neej yog txhais los ntawm ob qho kev ntsuas me: tshuab lub neej thiab lub neej hluav taws xob.
Neeg kho tshuab lub neej yog tus naj npawb ntawm kev hloov mus rau cov neeg xa tawm tuaj yeem ua nrog tsis muaj hluav taws xob rau cov neeg sib tiv tauj. Tus lej no feem ntau nyob hauv ntau lab. Nws muaj kev cuam tshuam loj rau peb daim ntawv thov.
Lub neej hluav taws xob yog tus naj npawb ntawm cov voj voog ntawm lub relay tuaj yeem ua thaum hloov ib qho kev cai tam sim no thiab voltage. Qhov no yog qhov tseem ceeb metric rau lub roj teeb them hluav taws xob relay. Cov kev ntsuas raug ntaus nqi yuav yog 100,000 mus txog ntawm 30a, 450VDC.
Daim duab no, pom ntawm cov ntaub ntawv, tso cai rau peb kwv yees cov relay txoj kev xav tau ntev hauv cov ntsiab lus ntawm cov khoom lag luam xav tau. Nta xws li hermetic sealing thiab cov nyiaj tshwj xeeb cov khoom sib cuag.
Poob siab thiab kev co tiv thaiv
Ntau lub roj teeb them system tau muab tso rau hauv cov ntawv thov txawb uas paub tas li kev poob siab thiab kev co. Ib tug relay nyob rau hauv lub tsheb hluav taws xob, drone, lossis cov cuab yeej siv hluav taws xob hartheld yuav tsum tau ua kom tau cov kev ntxhov siab no.
Kev siv hluav taws xob sab hauv kev siv ua kom muaj kev sib cuag sib cuag tau sib tham lossis qhib ib pliag qhib thaum raug Jolt.
Kev ruaj ntseg mounting tseem tseem ceeb. Rau tau muaj nrog cov sib txawv. Cov no suav nrog PCB Pins rau Board-}} huab tais mount kev xaiv nrog xovtooj ntxiv, {{}} tiv taus installation. Kev xaiv yog nyob ntawm cov neeg siv tshuab tsim ntawm lub system tag nrho.
Kev Tshaj Tawm: Relay Technology
Thaum xaiv lub siab - fais hloov mus rau lub roj teeb charger, kev txiav txim siab tseem ceeb yog feem ntau ntawm ob qho kev sib tw thev naus laus zis. Nkag siab txog lawv cov kev lag luam - Offs yog tus yuam sij rau kev xaiv qhov yog rau koj daim ntawv thov.
Peb feem ntau xaiv ntawm ib txwm muaj hluav taws xob hluav taws xob (EMR) thiab cov khoom niaj hnub- Xeev Relays (SSR).
EMR vs. SSR
Electromechanical relays, kev tsom xam ntawm peb kev sib tham kom deb li deb, siv lub tshuab hluav taws xob rau lub cev ua rau lub cev txav mus cuag cov kev sib tw txav. Lawv qhib lossis kaw qhov Circuit Court thiab tsim cov cua sib txawv tiag tiag thaum qhib.
Cov khoom khov kho - Xeev nyob rau kev siv Semiconductor li cuab yeej, xws li Mosfets lossis iPlts, hloov qhov tam sim no. Lawv tsis muaj qhov chaw txav mus los thiab raug tswj hwm hluav taws xob. Qhov no feem ntau ntawm lub teeb liab kho qhov muag rau kev rho tawm.
Lub taub hau - rau -} taub hau sib piv
Thaum ssrs zoo li niaj hnub tshiab, emrs muaj qhov sib txawv. Cov no ua rau lawv xaiv tau ntau rau ntau lub siab- roj teeb hluav taws xob loj loj them rau cov ntawv thov. Qhov kev txiav txim siab yuav tsum tau tshuaj xyuas ua ntej ntawm lawv txoj kev ua tau zoo thiab tsis muaj zog.
Cov lus hauv qab no muab kev sib piv ncaj qha raws cov nta uas tseem ceeb tshaj plaws hauv cov ntsiab lus no.
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Yam zoo |
High - Power DC EMR |
Cov khoom - Xeev Relay (SSR) |
Tus yuam sij kev txiav txim siab rau cov roj teeb Chargers |
|
Ntawm - lub xeev tsis kam |
Tsawg heev (mω) |
Siab dua (yuav tsum tau ua kom sov) |
Efficiency.EMR yog qhov ua tau zoo dua, ua kom muaj cua sov tsawg dua. |
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Inrush tam sim no |
Zoo heev (tsim rau nws) |
Zoo (tab sis tuaj yeem puas los ntawm spikes) |
Robustness.EMRS feem ntau zam txim rau kev npaj txhij txog kev npaj txhij txog. |
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Muab cais nyob ib leeg |
Zoo heev (Huab Cua Cua) |
Zoo heev (kev kho kho qhov muag) |
Kev nyab xeeb.EMR muab cov galvanic muaj tseeb, muaj kev sib tsoo. |
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Hloov nrawm |
Slower (MS) |
Ceev heev (μS) |
Tsis tseem ceeb rau cov neeg hu tseem ceeb, tab sis tuaj yeem pab tau rau kev tiv thaiv. |
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Hluav Taws Xob Lub Neej |
Finite (xws li, 100k-200k cmles) |
Ze li infinite (tsis muaj chaw txav) |
Thiav.SSR wins, tab sis ib qho zoo -} Cov emr yuav outlast cov khoom. |
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Luv -} Circuit Court Withstand |
Siab (tuaj yeem tsim los ua kom tsis qhib) |
Qis dua (tuaj yeem ua tsis tiav) |
Kev Nyab Xeeb Tseem Ceeb.EMR yog feem ntau nyiam rau kev ua tsis tiav hauv lub xeev muaj kev nyab xeeb. |
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Tus nqi |
Tswj kav |
Siab dua (tshwj xeeb tshaj yog rau siab tam sim no) |
Pob nyiaj siv.EMR yog feem ntau tus nqi ntau dua -}} Siv tau zoo rau high- fais fab hloov. |
Qhov tseem ceeb tshaj plaws yog nyob rau - lub xeev tsis kam thiab tsis ua hauj lwm hom. EMR qhov kev sib chwv tsis tau yog nws ua rau muaj cua sov me me. Qhov yooj yim cov cua nab cij. Hloov siab, ib qho SSR ntau dua (RDS (ON) - Tsim cov cua sov tseem ceeb (p {4 4} i²r). Qhov no yuav tsum muaj cov cua sov, muaj nuj nqis.
Tsis tas li ntawd, ib tus SSR txoj kev nyiam ua kom poob rau lub xeev luv yog kev txhawj xeeb kev nyab xeeb hauv lub teeb hluav taws xob. AR EMR, thaum nws ua tsis tiav, yog qhov ntau yuav tsis qhib. Nov yog kev nyab xeeb tshaj plaws.
Cov Lus Qhia Xaiv Tswv Yim
Peb tau npog txoj kev xav. Tam sim no, cia peb txhais nws rau hauv ib qho kev siv ua, kauj ruam {1} {{2} {qib rau kev xaiv txoj cai relay. Nov yog lub moj khaum peb siv ua cov engineers txav ntawm cov kab ke yuav tsum muaj ib feem ntawm cov lej.
Tus txheej txheem no cuam tshuam nrog cov lus nug uas systematically txhais tau cov kev ua haujlwm yuav tsum tau ua.
Kauj ruam 1: Txhais cov haujlwm ua haujlwm
Peb pib los ntawm kev txhais cov chaw ua haujlwm hluav taws xob. Cov no yog qhov tod {{{{}} qib specifications uas nqaim ntawm thaj teb ntawm peev ntawm tam sim ntawd.
Dab tsi yog cov roj teeb pob qhov ntau tshaj plaws ntawm nominal hluav taws xob? Qhov no tuaj yeem yog 48v, 400v, lossis 800V. Cov relay yuav tsum tau ntsuas rau qhov hluav taws xob no lossis siab dua.
Dab tsi yog qhov ntau tshaj plaws them tus nqi them tam sim no cov relay yuav nqa? Peb pom zoo xaiv ib qho relay nrog kev ntsuas txuas ntxiv tam sim no tsawg kawg 25% siab dua li cov kab ke tam sim no. Qhov no muab cov npoo kev nyab xeeb thiab ua kom cov khoom siv ntsuas kub kom nce hauv kev kos.
Dab tsi yog qhov siab tshaj plaws tam sim no cov relay yuav tsum muaj kev nyab xeeb? Qhov kev sib tsoo siab tshaj plaws tam sim no yog ib qho tseem ceeb tshwj xeeb kev nyab xeeb. Nws tau muab los ntawm cov txheej txheem kev ua txhaum thiab feem ntau yog ntau dua li cov tam sim no tam sim no.
Kauj ruam 2: Tus yam ntxwv koj nyob hauv
Cov kauj ruam tom ntej yog rau kev ntsuas cov nyiaj hauv nruab nrab tam sim no. Qhov no yog kev sib cav tshaj plaws feem ntau ua rau thaum ntxov rov ua tiav.
Txoj kev zoo tshaj plaws yog tsim qauv ntawm koj lub charger's invard theem. Tom qab ntawd ntsuas cov inrush tam sim no ncaj qha nrog lub oscilloscope thiab kev sojntsuam tam sim no. Yog tias muaj kev tiv thaiv tsis yog ua tau, koj tuaj yeem simulate lub Circuit Court.
Yog tias tsis muaj kev xaiv, koj yuav tsum xaiv cov lus hais tshwj xeeb raug xaiv rau kev thauj khoom tau hloov chaw. Saib rau qhov kev ntaus nqi hauv lub datasheet. Nws ib txwm muab ua lub ncov tam sim no thiab ib lub sijhawm (piv txwv li, 200a @ 10ms).
Qhov kev tshawb fawb no tseem yuav txiav txim siab yog tias ua ntej -}} Kev them hluav taws xob yog yuav tsum tau ua. Yog tias suav hauv qhov muaj peev xwm tshaj qhov muaj peev xwm ntawm kev tsim nyog ntawm kev tsim txiaj- qhov chaw muaj hnub nyoog, koj yuav tsum tsim cov pre- part them nws.
Kauj ruam 3: Txiav txim siab tswj hwm thiab lub cev xav tau
Tam sim no peb xav txog yuav ua li cas cov relay sib xyaw ua ke rau hauv qhov system dav.
Dab tsi uas muaj hluav taws xob muaj hluav taws xob lossis cov microController lossis cov neeg tsav tsheb nrog lub zog cov relay's coil? Kev muab cov khoom siv rau ntau yam nrog ntau tus qauv coil voltages, xws li 12vdc lossis 24vdc.
Puas muaj hluav taws xob tsis muaj hwj txwv tseem ceeb tshaj plaws? Yog tias muaj, peb yuav tsum tshawb nrhiav cov qauv txuas tau uas qhia meej lub hwj chim "tuav." Los yog npaj tsim qauv tsim ib lub PWM tsav tsheb Circuit Court kom ua tiav nws.
Thaum kawg, yog dab tsi yog lub cev txwv? Nco ntsoov tias qhov ntau tshaj plaws tso cai (L x W x h). Txiav txim siab cov hom yuav tsum tau mounting (pcb mount lossis chassis / vaj huam sib luag mount) raws li koj cov kev sib xyemical thiab kev co.
Kauj ruam 4: Rov xyuas lub Datasheet
Nrog rau cov cai tau hais tseg, cov kauj ruam kawg yog kev tshuaj xyuas cov neeg sib tw ntawm cov neeg sib tw relay datasheets. Peb siv cov ntawv txheeb xyuas kom ua kom tsis muaj qhov tseem ceeb ntsuas tau dhau mus.
Kev ntsuas hluav taws xob tawg (voltage & tam sim no): Qhov no yog tus naj npawb ib qho kev nyab xeeb rau kev nyab xeeb. Nws yuav tsum tshaj li koj qhov phem tshaj plaws- kev xav tau.
Inrush Qhov Ntsuas Tam Sim No: Qhov no yog tus naj npawb ib kev ntseeg tau tshwj xeeb rau cov ntawv thov charger.
Chev Fais Fab (Khaws & Tuav Tseg): Qhov no yog qhov tseem ceeb rau kev tsim lub coil tus neeg tsav tsheb thiab rau tag nrho cov kev ntsuas kev ua haujlwm.
Lub neej hluav taws xob ntawm cov neeg ntsuas hluav taws xob: qhov no tso cai rau koj kwv yees cov khoom tivthaiv hauv koj cov khoom lag luam xav tau.
Dielectric lub zog & kev cuam tshuam tiv thaiv: Cov kev qhia tshwj xeeb no txheeb xyuas qhov kev nyab xeeb. Lawv ua kom muaj kev cuam tshuam txaus nruab nrab ntawm qhov siab- voltage hu thiab qis {{2} {voltage coil.
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Peb tau taug kev los ntawm lub luag haujlwm tseem ceeb ntawm kev xa tawm hauv lub roj teeb roj teeb rau cov ntsiab lus hluav taws xob thiab cov yam ntxwv hluav taws xob. Txoj kev ntawm cov kab ke yuav tsum tau xaiv rau kev xaiv sib txuam yog ib qho. Nws tau cog hauv cov ntsiab lus arminering.
Xaiv cov relay rau roj teeb them yog qhov txiav txim siab tseem ceeb. Nws tsis yog qhov teeb meem yooj yim ntawm kev sib piv ntawm cov nominal voltage thiab tam sim no. Nws yuav tsum muaj kev nkag siab tob txog cov kev sib tw tshwj xeeb los ntawm high- Fais fab DC voj voog, capactrature cov qauv kev nyab xeeb, thiab nruj kev nyab xeeb cov qauv.
Cov yam ntxwv peb tau sib tham tau ntau dua li cov khoom ntawm cov ntaub ntawv. Inrush tam sim no kov, DC arc - rhuav cov muaj peev xwm, kev noj hermetic, thiab tsis tshua muaj hluav taws xob tau yog cov kev daws teeb meem. Lawv xyuas kom cov khoom ua haujlwm thiab cov neeg siv kev nyab xeeb.
Ib tug zoo teev relay yog ib tus hero uas tsis pom. Nws ua haujlwm twj ywm nyob rau tom qab, puag ncig tom qab lub voj voog. Nws muab kev tiv thaiv thiab kev tswj hwm uas yog siv rau kev nyab xeeb, ua haujlwm, thiab kev muaj peev xwm ntawm tag nrho cov roj teeb. Xaiv nws kom muaj txiaj ntsig yog kev nqis peev hauv kev tsim nyog thiab tsim tau tsim tau.
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