Kev txhais ntawmRelay
Lub relay yog ib qho khoom siv tswj tsis siv neeg uas ua rau muaj kev hloov pauv hauv cov zis thaum cov khoom nkag mus txog qhov muaj nqis.
Relays feem ntau yog tsim los ntawm hlau cores, coils, armatures, hu rau springs, thiab lwm yam. Thaum ib tug tej yam voltage yog siv rau ob kawg ntawm lub kauj, ib tug tej yam tam sim no yuav ntws los ntawm lub kauj, tsim ib tug electromagnetic nyhuv. Lub armature yuav kov yeej lub zog rub ntawm lub caij nplooj ntoos hlav rov qab thiab tau txais kev nyiam rau cov tub ntxhais hlau nyob rau hauv lub tshuab hluav taws xob, yog li tsav cov kev sib cuag ntawm lub armature kom koom nrog qhov chaw nyob ruaj khov (feem ntau qhib kev sib cuag). Thaum lub coil yog powered, lub electromagnetic attraction kuj ploj mus, thiab lub armature yuav rov qab mus rau nws tus qub txoj hauj lwm nyob rau hauv cov tshuaj tiv thaiv quab yuam ntawm lub caij nplooj ntoos hlav, tso cov kev sib cuag mus thiab tus qub static tiv tauj (ib txwm kaw kev sib cuag). Qhov kev nqus thiab tso tawm no ua tiav lub hom phiaj ntawm kev coj ua thiab kev cuam tshuam hauv Circuit Court.
Relays muaj kev sib raug zoo ntawm kev tswj hwm (tseem hu ua lub input circuit) thiab tswj qhov system (tseem hu ua qhov tso zis hluav taws xob). Nws yog qhov tseeb "automatic hloov" uas siv lub me me tam sim no los tswj cov tam sim no loj dua, ua lub luag haujlwm hauv kev tswj tsis siv neeg, kev tiv thaiv kev nyab xeeb, thiab kev hloov pauv hauv Circuit Court.
Dab tsi yog relay
Vim li cas thiaj siv relay?
Relays tso cai rau cov hluav taws xob qis tam sim no los tswj ib lossis ntau qhov hluav taws xob tam sim no.
Relays muaj qhov zoo hauv qab no:
1. Cov kab hluav taws xob zoo tuaj yeem siv los txuas cov kev tswj cov hloov mus rau relays, txuag qhov hnyav, qhov chaw, thiab tus nqi.
2. Relays tso cai rau lub zog xa mus rau cov khoom siv nyob rau hauv qhov kev ncua deb tshaj plaws, yog li txo qis voltage.
3. Tsuas txuas lub hwj huam mov (ntawm relay) mus rau lub cuab yeej siv lub thickness specification cable.
Qhov txawv ntawm 4-pin relay thiab 5-pin relay
Pin kom muaj nuj nqis thiab ua haujlwm txhais:
- 4- tus pin relay: Feem ntau, muaj plaub tus pins xaiv los ntawm: ob qho rau kev sib txuas tswj Circuit Court, feem ntau sau npe 85 thiab 86, thiab ob qho rau kev sib txuas tswj circuits, feem ntau sau npe 87 thiab 30. Thaum qis Cov teeb liab tam sim no txuas nrog tus pins 85 thiab 86, nws yuav ua kom lub zog ntawm cov relay coil, tsim kom muaj ib qho chaw sib nqus, kaw kev sib cuag ntawm tus pins 87 thiab 30, thiab tswj qhov siab tam sim no nrog rau qhov qis tam sim no.
4- tus pin relay thaiv daim duab
- 5-pin relay: Muaj tag nrho ntawm 5 tus pins. Lwm ob tus pins 85 thiab 86 kuj tseem yog cov khoom siv txuas rau kev tswj Circuit Court; Ib tus pin yog lub davhlau ya nyob twg, 30; Lwm ob tus pins feem ntau qhib hu rau 87 thiab ib txwm kaw hu 87a. Thaum lub hwj chim tsis tau nkag mus rau lub relay coil, lub davhlau ya nyob twg 30 feem ntau yog txuas nrog ib txwm kaw hu 87a. Tshwj tsis yog lub coil txuas nrog, nws yuav txuas lub dav hlau dav hlau 30 mus rau ib txwm qhib kev sib cuag 87. Cov qauv no tuaj yeem ua rau 5-pin relays kom ua tiav ntau lub zog tswj hluav taws xob thiab lub xeev hloov.
5- tus pin relay thaiv daim duab
Cov xwm txheej ua haujlwm thiab kev sib txuas ntawm Circuit Court
- 4-pin relay: Lub xeev ua haujlwm yog qhov yooj yim. Thaum lub coil tsis muaj zog, kev sib cuag ntawm tus pins 87 thiab 30 raug txiav; Tom qab lub kauj yog powered on, cov neeg raug attracted thiab tswj Circuit Court yog qhib. Feem ntau siv rau circuits uas tsuas yog yuav tsum tau yooj yim on-off tswj, xws li kev tswj teeb pom kev zoo, yooj yim lub cev muaj zog pib nres tswj, thiab lwm yam.
- 5- tus pin relay: Vim nws ob lub xeev ntawm kev sib cuag ntawm ib txwm qhib thiab ib txwm kaw, nws tuaj yeem ua tiav txoj kev sib txuas sib txawv ntawm lub voj voog raws li lub zog ntawm lub zog ntawm lub kauj. Piv txwv li, nws yog dav siv nyob rau hauv cov xwm txheej uas yuav tsum tau hloov Circuit Court, backup Circuit Court pib, los yog kev tiv thaiv txhaum. Piv txwv li, nyob rau hauv ib co dual hwj chim switching circuits, thaum lub ntsiab lub hwj chim mov yog ib txwm, qhov ib txwm kaw kev sib cuag ntawm relay disconnects lub backup fais fab mov Circuit Court, thiab lub nquag qhib kev sib cuag txuas lub ntsiab fais fab mov Circuit Court; Thaum lub ntsiab fais fab mov tsis ua hauj lwm, lub kauj yog energized, thiab ib txwm kaw kev sib cuag disconnects lub ntsiab fais fab mov Circuit Court, thaum lub sij hawm qhib kev sib cuag txuas mus rau lub backup fais fab mov Circuit Court, ua tiav tsis siv neeg fais fab hloov.
Daim ntawv thov scenarios
- 4-pin relay: haum rau cov xwm txheej uas yuav tsum muaj kev tswj xyuas hluav taws xob yog qhov yooj yim thiab tsuas yog xav tau ib qho kev ua haujlwm qhib-tawm xwb. Vim nws cov qauv yooj yim thiab tus nqi qis, nws tau siv dav hauv qee cov khoom siv hluav taws xob me me, cov khoom siv hluav taws xob yooj yim, thiab qee qhov yooj yim circuit systems ntawm tsheb.
- 5-pin relay: Vim nws qhov hloov pauv hloov pauv tau yooj yim dua thiab muaj peev xwm tswj tau ntau dua, nws feem ntau yog siv rau hauv cov ntawv thov uas yuav tsum muaj kev tswj xyuas hluav taws xob siab, kev hloov hluav taws xob nyuaj lossis kev saib xyuas raws li txoj cai, xws li automation tswj systems, khoom siv, cov khoom siv sib txuas lus, thiab qee qhov kev tswj hwm hluav taws xob siab tshaj hauv tsheb.
Peb muaj coob tus4-pinthiab5-pinrelays uas txhawb nqaOEM / ODMkev cai
qhov chaw:Wikipedia--Kev piav qhia ntawm Relays