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Relays (DC): 99.9% Tsawg zog & Qhib Qhov Xaiv: 5 Kauj Ruam (nrog Duab)
Relays (DC): 99.9% Tsawg zog & Qhib Qhov Xaiv: 5 Kauj Ruam (nrog Duab)

Video: Relays (DC): 99.9% Tsawg zog & Qhib Qhov Xaiv: 5 Kauj Ruam (nrog Duab)

Video: Relays (DC): 99.9% Tsawg zog & Qhib Qhov Xaiv: 5 Kauj Ruam (nrog Duab)
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Relays (DC): 99.9% Tsawg zog & Latching Option
Relays (DC): 99.9% Tsawg zog & Latching Option
Relays (DC): 99.9% Tsawg zog & Latching Option
Relays (DC): 99.9% Tsawg zog & Latching Option

Kev hloov pauv mus yog qhov tseem ceeb ntawm kev tswj hluav taws xob. Hnub rov qab mus rau yam tsawg kawg 1833, kev siv hluav taws xob sib kis thaum ntxov tau tsim los rau kev siv xov tooj cua. Ua ntej tsim cov raj nqus tsev, thiab tom qab ntawd cov khoom siv hluav taws xob, cov xa tawm tau siv los ua cov tshuab ua suab nrov. Ntawd yog, thaum hloov pauv lub zog qis rau hauv lub zog siab dua, lossis thaum hloov chaw thauj khoom deb tau txais txiaj ntsig lossis tsim nyog, kev xa tawm yog qhov kev xaiv ntawm lub xeev. Telegraph cov chaw tau txuas los ntawm mais ntawm tooj liab hlau. Kev tiv thaiv hluav taws xob hauv cov neeg siv hluav taws xob txwv qhov deb ntawm lub teeb liab tuaj yeem sib tham tau. Kev xa rov qab tso cai rau teeb liab los yog "rov ua dua" raws txoj kev. Qhov no vim hais tias txhua qhov chaw txuas tau txuas nrog, lwm lub zog tuaj yeem raug txhaj, txhawb lub teeb liab kom txaus kom xa nws mus ntxiv.

Kev hloov pauv hluav taws xob sib nqus yuav tsis yog lub xeev-ntawm-tus-kos duab thev naus laus zis, txawm li cas los xij, nws tseem siv dav hauv kev tswj hwm kev lag luam, thiab qhov twg qhov tseeb galvanic cais kev hloov pauv yog qhov xav tau lossis xav tau. Lub xeev tau tshaj tawm, qhov thib ob ntawm ob pawg thawj ntawm kev hloov pauv, muaj qee qhov zoo dua li cov tshuab hluav taws xob sib txuas. SSR tuaj yeem ua tau ntau dua, muaj zog ntau dua, caij nrawm dua, thiab lawv tsis muaj qhov txav mus los.

Lub hom phiaj ntawm tsab xov xwm no, yog los qhia txoj hauv kev yooj yim los ua kom lub zog ua haujlwm tau zoo, thiab ua haujlwm tau zoo, ntawm tus qauv DC ua haujlwm hloov pauv hluav taws xob sib nqus.

Mus Tsim Cov Lus Qhia

Kauj Ruam 1: The 3 Common Electromagnetic Relay Types

1. Txheem Tsis Latching (monostable):

  • Ib kauj ntawm cov hlau nplaum hlau nyob ib puag ncig cov tub ntxhais uas tsis muaj zog sib nqus (tsuas yog cov hlau nplaum thaum lub zog tau txhawb zog).
  • Hloov armature tuav hauv nws lub xeev ruaj khov (tsis rub tawm) los ntawm lub caij nplooj ntoo hlav.
  • Yuav tsum muaj qhov ntsuas hluav taws xob DC txhawm rau siv rau lub kauj, hauv ob qho tib si, kom rub qhov hloov pauv.
  • Yuav tsum muaj qhov tam sim no txuas ntxiv mus ib ntus kom thim tau cov ncej ntawm lub armature thiab tuav lub xeev no.
  • Ntau qhov tam sim no yuav tsum tau rub lub armature hauv dua li yuav tsum tau tuav nws hauv.

Siv: Lub hom phiaj dav.

2. Latching (bistable):

Ib Hom Chev:

  • Ib kauj ntawm cov hlau nplaum hlau nyob ib puag ncig ib nrab cov hlau nplaum uas nkag tau mus (tseem maj mam sib nqus).
  • Hloov armature tuav nyob rau hauv lub xeev unlatched (tsis rub hauv) los ntawm lub caij nplooj ntoo hlav.
  • Yuav tsum tsuas yog luv luv ntawm DC lub zog siv rau lub kauj, hauv ib qho kev sib zog, rub tawm thiab sib nqus sib nqus latch qhov hloov pauv hauv lub xeev no.
  • Yuav tsum tau tsuas yog luv luv thim rov qab polarity mem tes yuav tsum tau siv rau lub kauj rau unlatch.

Hom Dual Coil:

  • Ob lub coils ntawm cov hlau nplaum nyob ib puag ncig ib nrab cov hlau nplaum uas nkag tau mus (tseem maj mam sib nqus).
  • Hloov armature tuav nyob rau hauv lub xeev unlatched (tsis rub hauv) los ntawm lub caij nplooj ntoo hlav.
  • Yuav tsum tsuas yog luv luv ntawm DC lub zog siv rau ib lub kauj, hauv ib qho polarity, rub hauv thiab sib nqus latch qhov hloov armature hauv lub xeev no
  • Yuav tsum tsuas yog luv luv ntawm DC lub zog siv rau lub kauj thib ob, hauv ib qho kev ncaj ncees, kom tsis txhob xauv.

Siv: Sab nraum ntawm kev tswj hwm kev lag luam, feem ntau siv rau RF thiab hloov lub teeb liab.

3. Hom Reed:

  • Ib kauj ntawm cov hlau nplaum hlau nyob ib puag ncig cov tub ntxhais ntawm cov hlau tsis muaj zog permeability (tsuas yog magnetized thaum coil tau txhawb zog).
  • Caij nplooj ntoos hlav hlau sib ze ze tiv tauj hermetically kaw hauv lub raj iav (reed).
  • Reed yog nyob ze rau ntawm lub kauj.
  • Kev sib cuag tau tuav hauv lub xeev ruaj khov los ntawm lawv lub caij nplooj ntoo hlav.
  • Yuav tsum muaj qhov ntsuas hluav taws xob DC txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau rub cov neeg qhib lossis kaw.
  • Yuav tsum muaj qhov tam sim no txuas mus rau cov hlau nplaum tuav cov neeg sib tham hauv lub xeev tsis ruaj khov.

Siv: Yuav luag tshwj xeeb tshaj yog siv rau kev hloov pauv me me.

Kauj Ruam 2: Pros & Cons ntawm 3 Hom

1. Txheem Tsis Latching (monostable):

Pros:

  • Feem ntau yog npaj tau yooj yim tshaj plaws.
  • Yuav luag txhua qhov kev xaiv qis tshaj.
  • Ntau yam thiab ntseeg tau.
  • Tsis tas yuav tsum tsav tsheb Circuitry.

Cons:

  • Tsis muaj hwj chim ua tau zoo thaum ua haujlwm zoo.
  • Ua kom sov thaum muaj zog rau lub sijhawm ntev.
  • Suab nrov thaum hloov.

2. Latching (bistable):

Pros:

  • Lub zog muaj txiaj ntsig, qee zaum ntau dua li SSR.
  • Thaum ua tiav, tuav ob lub xeev txawm tias tsis muaj lub hwj chim nyob.

Cons:

  • Tsis tshua muaj kev npaj tau yooj yim dua li tus qauv xa tawm.
  • Yuav luag txhua tus nqi siab dua tus qauv xa khoom.
  • Feem ntau tsawg dua kev hloov pauv kev xaiv piv rau tus qauv xa khoom.
  • Yuav tsum tau tsav tsheb Circuitry.

3. Roob:

Pros:

Feem ntau qhov kev cog lus tshaj plaws ntawm 3 hom

Cons:

Ntau qhov tshwj xeeb, muaj tsawg dua, xaiv ntau dua

Kauj Ruam 3: Nyem Qhov Kua Dej Zoo Li Qhov Tsis Zoo

Ib txoj hauv kev yooj yim los txo qhov tuav tam sim no ntawm tus qauv xa tawm, yog txhawm rau txuas cov kauj los ntawm kev sib txuas ua ke nrog tus nqi hluav taws xob loj hluav taws xob sib txuas nrog tus tiv thaiv. Feem ntau cov uas tsis yog latching tsuas xav tau txog 2/3 (lossis tsawg dua) ntawm qhov ua haujlwm tam sim no los tuav lub xeev.

Duab
Duab

Thaum siv lub zog siv, qhov nce ntawm qhov tam sim no txaus los ua tus xa tawm, ntws los ntawm cov kauj raws li tus neeg them nqi hluav taws xob.

Duab
Duab

Thaum lub capacitor raug them, tuav tam sim no raug txwv los ntawm thiab muab los ntawm cov sib txuas ua ke.

Duab
Duab

Kauj Ruam 4: Ua Kom Koj Li Kev Txom Nyem Loj

Qhov khoom plig thib ob hauv Cov Khoom Siv Hluav Taws Xob & Kev Sib Tw

Pom zoo: