Yuav ua li cas los txiav txim seb lub relay puas

Nyob rau hauv lub ntiaj teb no ntawm kev lag luam thiab tsev gadgets, relays ua lub luag haujlwm tseem ceeb. Yog tias muaj dab tsi tsis zoo nrog lub relay, tsis yog cuam tshuam rau kev ua haujlwm ntawm cov cuab yeej siv, nws kuj tseem tuaj yeem ua rau muaj kev phom sij loj heev thiab ua rau muaj kev saib xyuas ntau dua. Tam sim no, yuav ua li cas txheeb xyuas seb lub relay puas puas lawm? Kab lus no pab txheeb xyuas cov kev cuam tshuam cuam tshuam sai sai los ntawm peb yam tseem ceeb: cov tsos mob tshwm sim, ua rau, thiab kev sim.

1. Lub relay yog dab tsi? Nws ua haujlwm li cas?

Relays yog ib qho tseem ceeb ntawm cov hluav taws xob hluav taws xob siv hluav taws xob me me kom tswj tau cov dej ntws loj hauv cov tshuab hluav taws xob niaj hnub. Nws tswj lub tig-on lossis tig-tawm ntawm qhov tso zis davhlau ya nyob twg los ntawm electromagnetic los yog hluav taws xob cov hauv paus ntsiab lus rau input signals. Lawv tuaj yeem ua tiav cov hom phiaj ntawm automation tswj, kev tiv thaiv hluav taws xob, thiab cov teeb liab kis tau tus mob, thiab tau siv dav hauv cov khoom siv hauv tsev, khoom siv hauv tsev, thiab kev thauj mus los.

Lub hauv paus ntsiab lus ua haujlwm ntawm relay

Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm relays txawv nyob ntawm lawv hom, tab sis lawv feem ntau muab faib ua ob pawg: electromechanical relays thiab solid-state relays.

Electromechanical relay

1. Coil tsav: Thaum ib qho me me tam sim no dhau los ntawm lub coil ntawm lub relay, lub coil generates electromagnetic quab yuam.
2. Hu rau kev txiav txim: Electromagnetic quab yuam thawb qhov kev sib cuag kom qhib thiab kaw, yog li tswj qhov qhib / tawm ntawm lub siab tam sim no.
3. Cov yam ntxwv zoo: Electromechanical relays ua tiav kev hloov pauv kev ua haujlwm los ntawm kev siv tshuab, nrog lub suab pom zoo ("nyem" suab).

Khoom Lub Xeev Relay (SSR)

1. Tsis muaj cov khoom siv tshuab: kev hloov pauv tau ua tiav los ntawm cov khoom siv semiconductor xws li thyristors thiab optocouplers.
2. Kev hloov ceev: nrawm dua li cov khoom siv hluav taws xob, tsim nyog rau kev ua haujlwm siab.
3. Hnav tsis pub dawb: Cov khoom siv hauv lub xeev muaj zog dua vim lawv tsis muaj kev sib cuag nrog cov neeg kho tshuab.

Feem ntau ua rau relay tsis ua hauj lwm

Lub ntsiab yog vim li cas rau qhov tsis ua hauj lwm ntawm relays ib txwm muaj xws li:

• Hluav taws xob overload: Tshaj li qhov ntsuas tam sim no lossis qhov hluav taws xob ntawm lub relay tuaj yeem ua rau cov khoom sab hauv hlawv tawm.

• Mechanical hnav: Cov kev sib cuag ntawm classic electromechanical relays degrade nrog nce kev siv.

• Kev teeb tsa tsis zoo: qhov tsis ua haujlwm rau xaim kom raug lossis dissipate cua sov kom zoo tuaj yeem raug nqi relay nws qhov kev ua tau zoo.

• Ib puag ncig yam muaj xws li plua plav, ya raws, lossis qhov kub thiab txias uas tuaj yeem txo qhov kev pab cuam lub neej ntawm relays.

Yog tias koj xav xaiv relays uas tuaj yeem hloov mus rau qhov chaw nyuaj, txais tos mus saib pebsolid-state relay khoom.

Cov tsos mob ntawm cov relay puas

 

Tshaj kub
Yog hais tias lub relay raug kub siab rau ib lub sij hawm ntev, lub rwb thaiv tsev ntawm lub kauj yuav txo, ua rau malfunction.

Mechanical hnav thiab tsim kua muag
Vim kev hloov pauv ntau zaus, cov kev sib cuag ntawm cov relay yuav hnav los yog tog hauv lub sijhawm, ua rau muaj kev ua haujlwm tsis zoo.

 

Corrosion
Yog hais tias lub relay raug ya raws los yog corrosive tshuaj, cov kev sib cuag thiab lwm yam khoom ntawm lub relay yuav corrode, ua rau malfunctions.

Voltage nce
Voltage spikes los yog surges tej zaum yuav tshwm sim nyob rau hauv lub Circuit Court, ua rau relay hu rau yaj thiab ua rau malfunctions.

Kab mob
Yog tias av, plua plav, lossis lwm yam kuab paug nkag mus rau hauv lub relay, nws yuav ua rau cov neeg sib cuag tau daig lossis puas, ua rau ua haujlwm tsis zoo.

Coil burnt tawm
Yog hais tias lub coil ntawm relay raug ntau dhau tam sim no los yog voltage, nws yuav overheat thiab hlawv tawm, ua rau malfunction.

Yuav ua li cas kuaj seb lub relay puas?

Nov yog peb txoj hauv kev sim relay:

Kev tshuaj xyuas qhov muag
Tshawb xyuas cov cim hlawv, corrosion, lossis kev puas tsuaj rau lub cev ntawm lub tsev relay.
Tshawb xyuas cov cim ntawm cov hniav lossis hnav ntawm cov neeg sib cuag.

Kev ntsuas ntau meter
Teem lub multimeter rau hom tsis kam.
Kuaj coil tsis kam: Kev puas tsuaj relays feem ntau pom qhib Circuit Court lossis nyeem tsis zoo.
Thaum qhib lub relay, xyuas seb qhov tso zis davhlau ya nyob twg txuas nrog.

kev kuaj ua haujlwm
Txuas lub relay mus rau qhov ntsuas hluav taws xob thiab saib yog tias nws hloov tau zoo.
Yog hais tias lub relay hloov tsis tau, nws yuav qhia tau hais tias yog ib qho txhaum.

• Txhawm rau pab koj nkag siab zoo dua, cia kuv muab piv txwv rau koj: Peb siv lub tsheb relays, thawj zaug kev sib txuas tswj circuits 85 thiab 86 nrog cov roj teeb. Yog tias koj hnov ​​​​ib lub suab nias, nws txhais tau hais tias lub relay ua haujlwm zoo. Thiab thaum peb siv ib lub multimeter los ntsuam xyuas cov tswj Circuit Court, nws qhia tau hais tias ib txwm tus nqi ntawm 50 thiab 200 ohms.Yog hais tias koj tseem tsis tau paub meej, peb tau muab ib tug yees duab hauv qab no,

Sijhawm Segments rau Kev Xeem Relays hauvVideo

Nov yog cov sij hawm tseem ceeb hauv cov yeeb yaj kiab uas tau piav qhia txog kev sim relay:

• 03:46 - Yuav Ua Li Cas Ntsuam Xyuas Relays: Kev taw qhia rau cov kauj ruam yooj yim rau kev sim relay
• 04:19 - Nyem Test: Ua qauv qhia siv lub roj teeb los ua lub zog tswj lub voj voog thiab kuaj xyuas lub suab "nias".
• 05.
• 06.
• 07.

Nyem rau qhov txuas saum toj no txhawm rau dhia ncaj qha mus rau ntu ntu rau kev ua qauv qhia ntxaws.

Kev tiv thaiv kev tiv thaiv tiv thaiv relay tsis ua haujlwm

Txhawm rau txuas ntxiv lub neej kev pab cuam ntawm relay thiab tiv thaiv kev sib tsoo, cov kev tiv thaiv hauv qab no tuaj yeem raug coj los ua kom tsis txhob muaj kev cuam tshuam relay:

• Matched specifications: siv ib tug relay nrog rau theem txaus tiv thaiv Circuit Court yuav tsum tau.

• Kev txhim kho kom raug: Xyuas kom cov xaim yog tsim nyog thiab tsim hluav taws xob txaus dissipated.

• Kev tu ncua sij hawm: Ua cov kev soj ntsuam niaj hnub rau kev hnav lossis kev puas tsuaj rau cov relays.

• Hloov kho rau lub hwj chim relay: Lub zog relays muaj zog dua thiab tiv taus hnav.

• Rau ntau txhim khu kev qha relay khoom, thov mus saib peb catalog raulub zog relays.

Thaum twg kuv yuav tsum tau hloov lub relay?

Cov xwm txheej hauv qab no qhia tias yuav tsum tau hloov lub relay:

• Lub kauj lossis kev sib cuag qhia pom pom tseeb ntawm kev puas tsuaj

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• Qhov kev ntsuam xyuas qhia tau hais tias lub relay tsis muaj kev sib txuas lossis kev hloov pauv txawv txav.

• Relays nquag overheat los yog ua suab nrov txawv txav.

• Raws li ib txwm muaj, qhov kev thov thauj khoom tsis tuaj yeem ua tiav.

• Lub sij hawm hloov ntawm faulty relays tuaj yeem tiv thaiv kev puas tsuaj ntxiv rau lub cev. Xaiv QIANJI relays rau kev hloov. QIANJI tau tshwj xeeb hauv kev tsim cov relays rau ntau tshaj 20 xyoo, nrog cov cuab yeej siv niaj hnub thiab cov kev pabcuam zoo. Nyem rauxaiv relaysthiab tau txais cov qauv dawb

Cov ntsiab lus

Malfunctioning relays tuaj yeem muaj kev cuam tshuam loj rau kev ua haujlwm ntawm cov khoom siv, tab sis los ntawm kev tshuaj xyuas kom zoo, kev sim, thiab kev saib xyuas, cov teeb meem tuaj yeem kuaj pom ntxov thiab daws tau. Txawm hais tias nws yog kev lag luam automation lossis khoom siv hauv tsev, xaiv cov khoom siv hluav taws xob txhim khu kev qha zoo tuaj yeem ua kom cov khoom siv mus ntev.

Mus ntsib pebindustrial relaynplooj ntawv khoom los nrhiav qhov zoo tshaj plaws relay rau koj daim ntawv thov. Yog hais tias koj xav tias ib tug relay malfunction, thov koj xav tiv tauj peb rau kev qhia tswv yim los yog hloov kev xaiv.