Cov ntaub ntawv tiv toj Spst, SPDT, thiab DPDT ntawm kev ncua cia?

Repays yog qhov tseem ceeb ntawm cov hluav taws xob thiab tswj hluav taws xob. Lawv ua haujlwm raws li cov hloov hluav taws xob. Qhov no tso cai rau qhov qis qis- lub zog hluav taws xob los tswj hwm ntau dua {power fais fab thaum ua kom lawv cais tawm tag nrho.

Txhua tus relay muaj lub tshuab hloov sab hauv ntawm nws cov tub ntxhais. Qhov no hu ua daim ntawv tiv toj ntawm Relay. Cov teeb tsa no txiav txim siab li cas cov reey txuas, discronnects, lossis redirects hluav taws xob ntws.

To taub cov ntawv xov tooj tsis yog kev tshawb xav xwb. Nws yog qhov kev txawj tseem ceeb rau ib tus engineer lossis cov kws tshaj lij. Daim foos Huaj uas koj xaiv ncaj qha cuam tshuam npaum li cas koj cov kev ua haujlwm ncig ua haujlwm, nws nyab xeeb npaum li cas, thiab ua li cas nws khiav.

Cov foos tiv toj feem ntau siv cov ntawv sau: SPOT, SPDT, thiab DPDT.

SPST (tib tus ncej, ib leeg pov) ua haujlwm zoo li yooj yim rau / tawm hloov.

Spdt (tib tus ncej, ob npaug pov) ua raws li kev hloov pauv hloov. Nws ncaj qha tam sim no los ntawm ib qho chaw mus rau ob qho chaw muaj peev xwm ua tau.

DPDT (ob tus ncej, muab ob npaug rau pov) yog yeej ob synchronized spdt hloov hauv ib pob. Qhov no tso cai rau cov qauv nyuaj dua.

Cov lus qhia no mus dhau cov ntsiab lus tseem ceeb. Peb yuav muab koj cov kev tawg rau koj rau cov engineers. Koj yuav kawm paub txog lub cev, cov cav, thiab tiag- NTIAJ TEB siv ntawm cov ntaub ntawv sib cuag cov lus nug no. Qhov no yuav pab koj xaiv thiab siv lawv nrog kev ntseeg siab.

Cov blocks

Tus ncej yog dab tsi?

Ua ntej peb txiav plaub fab, peb yuav tsum nkag siab ob nqe lus tseem ceeb: "ncej" thiab "pov."

Tus "Ncej" ntawm ib tus relay yog qhov chaw nyob ntawm tus hloov. Nws yog qhov chaw txav uas ua rau lossis tawg qhov txuas.

Xav txog tus ncej zoo li pob khawm thiab rooj vag ntawm lub laj kab. Nws yog ib qho uas viav vias tswj txoj kev.

Tus naj npawb ntawm tus ncej qhia tau pes tsawg qhov kev sib txawv cov relay tuaj yeem hloov ib zaug. Ib tug "tib tus ncej" relay tswj ib Circuit Court. Ib tug "Ob Npej Ob Ncej" Relay muaj ob qho kev sib cuag tau tsiv ywj siab. Nws tuaj yeem tswj ob qho kev sib cais nyob rau tib lub sijhawm nrog ib tus tswj teeb liab.

Dab tsi yog pov?

"Pov" yog qhov kev tiv tauj taw tes uas tus ncej yuav txuas rau. Nws sawv cev ib txoj kev tsim tawm tau rau tam sim no.

Siv peb lub rooj vag piv txwv, ib qho pov yog zoo li lub rooj vag -}} post tias lub rooj vag tuaj yeem khaws rau. Nws yog ib lo lus uas peb rau tus ncej txav.

Ib qho "ib qho pov" teeb txhais tau tias tus ncej tsuas yog txuas rau ib qho zis tawm tswv yim. Qhov no tsim ib qho yooj yim rau / tawm haujlwm. Lub Circuit Court yog tsuas kaw (ntawm) lossis qhib (tawm).

Ib qho "muab ob npaug" teeb tsa txhais tau tias tus ncej tuaj yeem txuas rau ib qho ntawm ob qho khoom tawm sib txawv. Qhov no muab koj "kev hloov pauv". Nws hloov lub tswv yim hauv hluav taws xob ntawm ob qho kev sib txawv.

Txheej xwm txheej: kab kos duab yooj yim qhia tau tias lub hauv paus tseem ceeb taw tes sau npe "Ncej." Rau nws txoj cai, ob qho chaw nyob ruaj ruaj yog qhia, ib qho siab dua lwm tus. Sab saum toj ib daim ntawv lo "pov 1 (piv txwv li, NC)" thiab hauv qab ib qho yog "pov 2 (piv txwv li, tsis muaj)." Ib tug xub taw qhia tus ncej tuaj yeem viav vias txuas rau cov pov.]

SPST: Qhov chaw hloov chaw

Hnoos qeev

Spst sawv rau ib tus ncej, ib qho muab pov. Nov yog daim ntawv sib tiv tauj yooj yim tshaj plaws ntxiv rau kev xa tawm tuaj yeem muaj.

Yuav ua li cas nws ua haujlwm yog ncaj. Nws ua haujlwm raws li qhov yooj yim ntawm / off hloov rau ib tog. Nws muaj ib lub tswv yim (tus ncej) thiab ib qho tso zis (cov pov).

Thaum ua kom tiav, xa rov qab ua tiav cov Circuit Court lossis tawg nws. Tsis muaj lwm txoj hauv kev. Qhov no ua rau nws zoo tag nrho rau yooj yim thauj {{2} Hloov haujlwm uas koj tsuas xav tau ob lub xeev: ntawm lossis tawm.

Spst - Tsis muaj vs. spst - NC

Spst rov qab tuaj nyob rau hauv ob hom raws li lawv lub sijhawm thaum lub xeev thaum lub kauj tsis siv. Cov no hu ua tej yam qhib thiab ib txwm kaw.

Spst -} Tsis Yog, lossis tsim A, Relay khaws cov Circuit Court qhib los ntawm lub neej ntawd. Thaum koj thov lub zog rau cov relay chev, nws tsim ib daim teb sib nqus. Qhov no rub tawm cov neeg sib cuag sib ua ke, kaw qhov Circuit Court thiab tso cov ntws tam sim no.

Ib qho hnoos qeev - NC, lossis tsim b, relay ua haujlwm txawv. Nws khaws cov Circuit Court kaw los ntawm lub neej ntawd, tso cai rau tam sim no ntws thaum xa tawm yog tsis muaj zog. Thaum koj ua kom lub kauj, nws rub cov neeg sib tiv toj. Qhov no tsoo lub Circuit Court thiab nres qhov tam sim no.

Cov qauv thiab cov ntawv thov

Tus qauv schematic rau SPOt relay qhia qhov nws ua. Nws qhia tau ib qho hloov mus nrog ib kab dashed ua rau lub cim coil. Qhov no qhia tau cov kev ua yeeb yam hauv hluav taws xob. Lub tsis muaj version qhia tau qhib qhib. NC version qhia tias nws kaw.

SPST relays have many practical uses because they're simple and cost-effective.

Hloov hloov hloov: Qhov no yog qhov siv ntau tshaj plaws. Ib qho hnoos qeev - Tsis muaj relay yog qhov zoo meej rau kev tig ntawm teeb, kiv cua, twj, lossis motors me me. Nws teb rau kev tswj cov cim los ntawm microcontrollers lossis sensors.

Tswj cov system pab: nyob rau hauv cov tshuab ua tshuab ua ke, ib qho hnoos qeev, ib qho nti {{0} Tsis muaj kev xa khoom tuaj yeem ua haujlwm tau raws li tus tswv hloov. Thaum tswj hwm lub kaw lus tau npaj tiav, nws ua kom muaj zog rau muab lub zog tseem ceeb rau txhua lwm cov cab sib hloov.

Ua tsis tiav Logic: Lub spst - NC repay yog qhov tseem ceeb hauv kev nyab xeeb engineering, tshwj xeeb tshaj yog rau kev kub ntxhov (e - chaw. Ntawm no, lub e {{- nres khawm yog ib feem ntawm cov Circuit Court uas muaj lub hwj chim xa cov kauj. Thaum lub sijhawm ua haujlwm ib txwm muaj, cov kauj yog energized. Qhov no tau tuav NC cov kev sib cuag qhib thiab ua kom lub tshuab siv hluav taws xob tawm (lossis ua rau nws, nyob ntawm lub logic).

Los ntawm kev pom muaj kev nyab xeeb, siv NC relay rau e -}} nres yog qhov zoo dua. Yog tias tswj lub zog yog ploj rau ib qho laj thawj (zoo li lub xaim hluav taws xob tawg), cov relay chev poob hwj chim. Tus relay ces rov qab los rau nws ib txwm kaw lub xeev. Qhov no yog wired los ua rau lub nres nres. Qhov no ua kom ntseeg tau tias txhua qhov tsis ua tiav hauv cov kev tswj hwm lub sijhawm rau kev nyab xeeb, nres xeev.

SPDT: Kev hloov pauv ua haujlwm ua haujlwm

Spdt anatomy

SPDT sawv rau ib tus ncej, ob npaug pov. Daim foos tiv toj no yog tsis muaj tseeb heev. Nws ua haujlwm raws li lub pob zeb hauv pob zeb ntawm kev hloov tsheb logic.

Nws muaj peb lub terminals: ib qho davhlau ya nyob twg (tus ncej) thiab ob qho tso zis cov khoom lag luam (cov cuam). Tus ncej yuav ib txwm txuas nrog ib qho ntawm ob cuam. Nws yeej tsis so hauv lub xeev qhib ntawm lawv.

Cov terminals no yuav luag ib txwm sau npe com (nquag), tsis muaj (nquag qhib), thiab NC (ib txwm kaw). Lub comderninal yog cov lus qhia. Tsis yog thiab NC yog ob qho kev tawm tswv yim.

Kev ua haujlwm thiab Logic

Lub cav ntawm SPDT Relay yog tias ntawm kev hloov pauv hloov. Nws diverts tam sim no ntws los ntawm ib txoj hauv kev mus rau lwm qhov.

Thaum cov xa xov relay tsis energized, sab hauv kev tiv tauj sab hauv (ncej) txuas rau NC lub davhlau ya nyob twg. Qhov no yog nws "ib txwm" lossis sijhawm so.

Thaum koj ua kom lub kauj, cov hlau nplaum sib nqus txav tus ncej. Qhov no ua rau nws mus viav vias ntawm NC tus hu thiab txuas nrog tsis muaj lub davhlau ya nyob twg. Kev sib txuas rau NC lub davhlau ya nyob twg ua ntej kev sib txuas rau tsis muaj lub davhlau ya nyob twg. Qhov no yog hu ua "tawg - ua ntej- ua" ua "ua

Cov kev lag luam tseem muaj dav paub qhov kev teeb tsa no yog "daim ntawv C" hu.

Schematic thiab cov ntawv thov

Cov cim schematic rau SPDT relay qhia txog nws qhov kev hloov pauv hloov. Nws qhia tau ib tus ncej ib puag ncig ntawm ob cuam. Ib tug xub taw qhia nws tuaj yeem txuas rau ib qho twg, tswj tau los ntawm tus coil.

SPDT Repay lub versatility ua rau nws haum rau ntau cov ntawv thov tshaj qhov yooj yim ntawm / tawm tswj.

Cov teeb liab / kev xaiv: Ib spdt relay tuaj yeem txoj kev ib qho ntawm cov cim qhia tawm rau ib ntawm ob qho chaw sib txawv. Qhov no yog qhov tseem ceeb rau kev hloov lub suab ntawm ob tus neeg hais lus. Lossis hloov cov ntaub ntawv kab nruab nrab ntawm ob chav ua haujlwm sib txawv.

Kev tswj hwm hom hloov mus los: Nws nquag siv rau toggle lub kaw lus nruab nrab ntawm ob hom kev ua haujlwm, zoo li "phau ntawv" thiab "tsis siv neeg." Kev tswj hwm lub cav hluav taws xob ua kom muaj kev sib hloov pauv ntawm lub neej ntawd kev tuav ntawm cov kev ncig ua ke hauv Circuit Court txoj kev.

Rov qab polarity: hauv yooj yim heev, qis -} lub zog tshwm sim, ib qho SPDT tuaj yeem ua tau cov xim polarity hloov. Piv txwv li, ib qho cuam yuav txuas rau hauv av thiab lwm qhov mus rau qhov hluav taws xob zoo. Qhov no tso cai rau lub comdinal combinal kom hloov ntawm cov xeev siab thiab qis.

Kev siv hloov: SPDT Relay muaj kev hloov pauv tau zoo. Yog tias koj tsuas yog xav tau ib txwm qhib hloov pauv, koj tuaj yeem siv tsuas yog lub com thiab tsis muaj cov kev txiav tawm. Tawm ntawm NC lub davhlau ya nyob tsis muaj kev cuam tshuam. Rau ib txwm kaw tes nyem, siv cov com thiab NC cov chav kawm. Qhov no pub rau ib hom tivthaiv ua hom ntau yam hauv kev tsim qauv. Nws yooj yim yooj yim cov khoom lag luam tswj hwm.

DPDT: synchronized dual hloov

Dpdt anatomy

DPDT sawv rau ob tus ncej, ob sab pov. Xav txog qhov no relay raws li ob tus neeg ywj pheej spdt rov qab kho tshuab sib txuas ua ke. Lawv tau tswj los ntawm ib coil.

Nws muaj ob tug ncej (cov kev sib txawv). Txhua tus ncej muaj nws tus kheej ib txwm qhib thiab ib txwm kaw cov neeg. Qhov txiaj ntsig no ua rau yim lo lus: ob rau lub kauj, thiab rau rau ob lub teeb ntawm com, tsis tau, thiab NC.

Cov ntsiab lus tseem ceeb ntawm DPDT Relay yog synchronized hloov. Thaum koj ua kom lub kauj, ob tus ncej hloov tib lub sijhawm los ntawm lawv cov neeg NCL. Qhov kev ua synchronized no yog dab tsi ua rau nws muaj zog heev.

Kev ua haujlwm thiab Logic

DPDT Relay muab ob daim ntawv c tiv tauj hauv ib pob. Ob lub qhov hluav taws xob sab hauv yog hluav taws xob cais los ntawm txhua lwm tiam sis kev sib txuas.

Thaum lub kauj yog tawm, tus ncej 1 txuas rau nws tus neeg hu nkauj NC (NC1). Ncej 2 Txuas rau nws tus kab hu NC (NC2).

Thaum koj ua kom muaj zog rau cov kauj, cov tshuab kev sib tsoo ob sab ncej ib txhij. Ncej 1 Kev so los ntawm NC1 thiab txuas rau Not1. Nyob rau tib lub sijhawm, ncej 2 so los ntawm NC2 thiab txuas rau tsis muaj2.

Schematic thiab cov ntawv thov

DPDT schematic lub cim qhia meej meej qhia ob spdt transgle seem - {ib sab. Ib txoj kab ib zaug txuas txuas rau lawv rov qab mus rau ib lub cim khij. Qhov no yog visually sawv cev rau cov lus laib zoo li {{}} tab sis -}} cais cov xwm ntawm cov neeg.

Muaj peev xwm tswj tau ob qho kev sib cais nrog ib lub teeb liab ua rau dpdt rov qab tseem ceeb rau cov ntawv thov nyuaj dua.

Lub cev muaj zog reversing (h -}} choj): Nov yog cov ntawv thov classic rau DPDT Relay. Los ntawm tus ntoo khaub lig-} wire Qhov no tso cai rau yooj yim, muaj zog rau pem hauv ntej thiab rov qab tswj nrog ib qho tivthaiv.

Ib txhij hloov lub nra thiab qhov ntsuas: qhov no muaj ntau heev hauv kev tswj vaj huam sib luag. Ib tug ncej ntawm relay tuaj yeem hloov lub siab - fais fab nra, zoo li 24vdc lub twj tso kua mis lossis 120vac twj tso kua mis. Qhov thib ob, hluav taws xob cais yuav tuaj yeem hloov tus qes - vertage teeb liab. Qhov no tuaj yeem yog 5VDC cov tswv yim rau lub plc lossis 12vdc qhia tau lub teeb pom kev, lees paub lub nraaj cov xwm txheej.

Theem hloov nyob rau hauv multi -}}} paim thau khoom, rau cov khoom siv ntsuas uas tsim nyog thiab nrog tus lej ntsuas kom raug thiab muaj peev xwm hloov ob ntu ntawm ib qho kev siv hluav taws xob. Qhov no yog ib txwm muaj nyob rau hauv kev tswj lub cev muaj zog me me lossis hloov pauv ntawm cov hluav taws xob sib txawv.

Kev Tshaj Tawm thiab Xaiv

Lub taub hau - rau -} taub hau sib piv

Xaiv daim ntawv tiv toj txoj cai yuav tsum muaj kev ntsuas kev ua haujlwm sib npaug, kev nyuaj siab, thiab tus nqi. Cov lus no muab kev sib piv ncaj qha ntawm cov cwj pwm tseem ceeb rau txhua hom.

Ib qho kev txiav txim siab

Txhawm rau xaiv cov relay yog rau koj tus qauv, nug cov lus nug. Lub moj khaum no yuav coj raws li koj xaiv tau zoo thiab muaj txiaj ntsig zoo.

Dab tsi yog qhov tseem ceeb ua haujlwm? Yog tias koj tsuas yuav tsum tau tig lub cuab yeej ntawm lossis tawm, ib lub ntsej muag hnoos yog qhov ncaj qha thiab tus nqi {{{0} {{0} {{0} {{0} {{0} {{0} {{0} -}}}}} kev daws teeb meem. Yog tias koj xav tau xaiv ntawm ob qho sib txawv lossis cov xeev, koj xav tau kev hloov ua haujlwm. Cov ntsiab lus no rau SPDT lossis DPDT.

Muaj pes tsawg tus cais tawm yuav tsum tau tswj los ntawm ib lub teeb liab? Yog tias koj tau tswj ib txoj kev ncig ua ke, ib qho hnoos qeev lossis SPDT yuav ua haujlwm. Yog tias koj xav tau los ib txhij hloov ob lub tshuab hluav taws xob hloov pauv, zoo li lub cev muaj zog thiab cov lus qhia txog cov lus qhia, DPDT yog txoj kev xaiv yog.

Puas yog "tsis ua tiav" lossis lub xeev yuav tsum muaj? Yog tias lub Circuit Court yuav tsum ua tiav lossis ib txoj hauv kev tshwj xeeb yuav tsum ua kom nquag vim tias cov neeg xa tawm tsis muaj zog, koj xav tau ib txwm kaw (NC) tiv tauj. Qhov no txhais tau tias koj yuav tsum siv SPSTPT - NC lossis SPDT Relay.

Koj puas xav rov qab polarity? Thaum ntse wire nrog ntau tus spst colutays yog ua tau, qhov kev daws teeb meem tshaj plaws rau revers yog DPDT Relay. Nws tau cog lus thiab ua raws kev lag luam kev lag luam thaum teeb tsa raws li lub h- choj.

Puas yog pawg thawj coj thiab tus nqi ua thawj kev txwv? Tsis txhob dhau -} engineer. Yog hais tias ib tug spst - Tsis muaj ib qho kev xav tau ntawm kev tig ntawm tus kiv cua, siv tus loj dua, ntau dua spdt spdt. Ib txwm xaiv cov ntawv yooj yim tshaj plaws uas ntseeg tau ua tiav lub luag haujlwm.

Dhau ntawm daim ntawv hu, engineers yuav tsum yog ib txwm txheeb xyuas cov relay cov kev qhia tshwj xeeb tiv thaiv daim ntawv thov kev xav tau. Kos rau coil voltage ua ntej. Nws yuav tsum phim koj txoj kev tswj hwm. Sib luag sib luag yog qhov tseem ceeb yog tus tiv toj voltage ntsuam (VDC / VAM) thiab hu rau kev ntaus nqi tam sim no (AMPS). Cov no yuav tsum tau txaus los tuav lub nra yam tsis muaj arcing, vuam, lossis overheating.

Cov Ntsuas Hluav Taws Xob

Piv txwv 1: spdt fassover

Seem no muab cov kev sib tw ntawm yuav ua li cas cov kev rov qab no yog wired hauv lub tshav pob. Nws txuas txuas txoj kev xav thiab kev siv.

Cov xwm txheej:Ib qho khoom tseem ceeb soj ntsuam yuav tsum nyob twj ywm rau txhua lub sijhawm. Nws ib txwm khiav ntawm lub zog hluav taws xob tseem ceeb (PSU). Tab sis nws yuav tsum tau hloov mus rau lub roj teeb thaub qab roj teeb yog tias lub zog tseem ceeb ua tsis tiav. Spdt relay yog zoo meej rau qhov no tsis siv neeg.

TxojVau:Thaum xub thawj siab ib muag, koj yuav txuas lub ntsiab PSU rau NC kev hu thiab roj teeb rau tsis muaj. Cia cov kab ntawd logic. Lub coil yuav muab powered los ntawm lub ntsiab psu. Thaum lub zog tseem ceeb nyob rau, cov kauj yog energized. Qhov no txuas lub cuab yeej rau tsis muaj lub davhlau ya nyob twg (lub roj teeb). Qhov no tsis yog lawm. Cov cuab yeej yuav khiav ntawm lub roj teeb tas li.

Ntawm no yog qhov tseeb, poobsafe siv.

Daim duab:

[Daim Duab Piav Qhia: SPDT Relay yog qhia. Lub ntsiab psu zoo kab txuas rau ob lub ntsiab lus: tus relay's coil thiab tsis muaj lub davhlau ya nyob twg. Lub roj teeb thaub qab roj teeb txuas rau NC lub davhlau ya nyob twg. Tus relay's com terminal txuas rau cov lus pom zoo ntawm cov khoom tseem ceeb. Tag nrho cov feem sib qhia ib qho chaw sib txawv.]

Cov lus piav qhia:

Cov relay chev tau siv ncaj qha los ntawm Main PSU.

Tsuav yog lub ntsiab PSU yog nquag, cov kauj nyob ruaj khov energized. Qhov no tuav tus ncej hauv "energized" txoj hauj lwm, txuas lub com terminal mus rau qhov tsis muaj lub davhlau ya nyob twg. Cov cuab yeej tseem ceeb yog vim li no powered los ntawm lub ntsiab PSU.

Lub sijhawm lub ntsiab PSU tsis ua haujlwm, cov relay chev poob hwj chim. Lub relay sai sai rov rau nws lub xeev ua tsis tau. Qhov no ua rau tus ncej mus rau lub caij nplooj ntoo hlav rov qab thiab txuas lub com terminal rau NC lub davhlau ya nyob twg. Cov cuab yeej tseem ceeb tam sim no tau ua seamlessly powered los ntawm backup roj teeb. Qhov kev teeb tsa no ua kom haum tsis siv neeg thiab txhim khu kev qha Hwj Hwj Hwj Chim.

Piv Txwv 2: DPDT Lub Cev Muaj Zog Tswj

Cov xwm txheej:Peb yuav tsum tsim kom tsim kom tau yooj yim thiab thim rov qab tswj hwm DC lub cev muaj zog me me. Peb yuav siv ib qho DPDT relay thiab ib qho DC cov khoom siv fais fab nkaus xwb. Qhov no tsim cov classic h-} Choj Circuit Court.

Daim duab:

[DREGram Cov lus piav qhia: DPDT Relay, ARC tsav, thiab lub DC hluav taws xob muab (+ -) yog qhia. Lub cev muaj zog ob lub terminals tau txuas nrog ob tus ncej (com) cov chaw ntawm cov relay. Lub zog hluav taws xob (+) yog wired mus rau qhov tsis muaj kev tiv tauj ntawm tus ncej 1 thiab lub zog ntawm tus ncej 1. Cov kauj ruam ntawm tus lej ntawm tus lej.]

Cov kauj ruam hlau:

Txuas ob lub terminals ntawm DC lub cev muaj zog rau ob tus ncej (com) terminals ntawm dpdt relay.

Txuas qhov zoo (+) davhlau ya nyob twg ntawm koj lub DC cov khoom siv rau tsis muaj lub davhlau ya nyob twg ntawm thawj tus ncej (NO1).

Kuj txuas qhov zoo (+) davhlau ya nyob twg ntawm DC cov khoom siv hluav taws xob rau NC lub davhlau ya nyob twg ntawm tus ncej ob (NC2).

Txuas qhov tsis zoo ({-) Lub davhlau ya nyob twg ntawm koj lub DC cov khoom xa mus rau NC lub davhlau ya nyob ntawm tus thawj tus ncej (NC1).

Kuj tseem txuas qhov tsis zoo ({-) davhlau ya nyob twg ntawm koj lub DC cov khoom xa mus rau qhov tsis muaj lub davhlau ya nyob twg ntawm tus ncej ob (NO2). Qhov no ua tiav "cov ntoo khaub lig- dua" xaim.

Txuas cov relay chev rau koj txoj kev tswj hwm (zoo li ib toggle hloov, khawm, lossis microcontroller I / O PIN).

Cov lus piav qhia:

Thaum cov neeg xa xov hluav taws xob tsis muaj energized, ncej 1 txuas lub cev muaj zog thawj lub davhlau ya nyob twg rau qhov tsis zoo (ntawm NC1). NCEJ 2 Txuas lub cev muaj zog zaum thib ob rau qhov zoo (ntawm NC2). Tam sim no ntws nyob rau hauv ib qho kev taw qhia, thiab lub cev muaj zog spins rau pem hauv ntej.

Thaum tswj xyuas lub teeb xog xaim hluav taws xob cov kauj, ob qho tib si ncej. Ncej 1 Tam sim no txuas lub cev muaj zog thawj lub davhlau ya nyob twg (ntawm No1). Ncej txuas lub cev muaj zog lub davhlau ya nyob thib ob rau qhov tsis zoo (ntawm NO2). Cov polarity thov rau lub cev muaj zog yog thim rov qab, thiab lub cev muaj zog spins hauv kev coj rov qab.

Dhau qhov pib

Thaum SDT, SPDT, thiab DPDT yog cov foos sib chwv, lawv nyuam qhuav pib. Tib lub hauv paus ntsiab lus ntawm ncej thiab cuam txuas ntxiv rau cov kev teeb tsa nyuaj dua.

Koj tuaj yeem pom 3PDT (triple ncej, ob npaug pov) lossis 4pdt (plaub sab, muab ob muab ob npaug) qeeb. Cov no feem ntau hu ua 3C thiab 4C, feem. Lawv ua haujlwm li peb lossis plaub tus neeg loj leeb UDT hloov. Lawv tau siv rau kev tswj hwm peb {{- page motors lossis hloov cov pab pawg loj ntawm cov cim ib txhij.

Lwm cov relay thev naus laus zis muaj rau kev xav tau tshwj xeeb. Latching Relays tswj lawv txoj haujlwm sib cuag (ntawm lossis tawm) txawm tias tom qab tswj lub zog raug tshem tawm. Qhov no ua rau lawv zoo tshaj rau qis - kev siv fais fab. Lub xeev ruaj khov ntxiv (SSRS) siv semiconductors es tsis txhob sib cuag tshuab. Lawv muaj kev ua haujlwm nyob ntsiag to, lub neej ntev heev, thiab siab heev hloov ceev.

Xaus: Cov kev tsim qauv ruaj khov

Nkag siab txog cov lus ntawm kev xa cov ntaub ntawv sib tham yog qhov tseem ceeb rau ib tus engineer. Nws yog tus yuam sij los qhib lawv cov peev txheej puv hauv Circuit Circuit.

Txhawm rau recap: SPST yog koj mus -} kom yooj yim rau / tawm tswj. SPDT muab cov kev hloov pauv tsis xav tau rau xaiv thiab cov haujlwm tsis tiav. DPDT muab cov txheej txheem tswj cov synchronized tswj ntau dhau ob qho kev sib cais. Qhov no ua rau nws tus qauv rau lub cev muaj zog reversing thiab complex load / teeb liab sib xyaw.

Ib qho kev nkag siab zoo ntawm cov ntaub ntawv tiv toj Spst, SPDT, thiab DPDT ntawm kev ncua lub ntsiab lus tsis yog kev kawm. Nws yog cov ncej puab uas yog tsim qauv hluav taws xob uas muaj txiaj ntsig, txhim khu kev qha, thiab tseem ceeb tshaj plaws, muaj kev nyab xeeb. Siv cov kev paub no, thiab koj yuav tsim kom muaj zog dua thiab muaj tswv yim ntse.

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