Dab tsi yog qhov yuav tshwm sim ntawm kev xaiv qhov tsis ncaj ncees lawm relay? Qhia tiav Cov Lus Qhia

Cov lus nug tseem ceeb

Siv cov relay tsis yog muaj kev pheej hmoo. Qhov tshwm sim zoo tshaj yog ib qho kev ua tsis tau yooj yooj yim. Qhov xwm txheej phem tshaj koom nrog ua tiav cov cuab yeej ua tiav, hluav taws kub hluav taws xob, thiab muaj kev phom sij hnyav.

Cov teeb meem feem ntau tshwm sim tam sim ntawd thiab ua rau puas tsuaj. Peb pom coil hlawv thiab tiv toj vuam. Peb tseem pom kev puas tsuaj loj rau cov khoom uas tau cuam tshuam ntau. Ib qho kev xa tawm tsis ncaj ncees tuaj yeem rhuav tshem tag nrho cov kab ke.

Cov lus qhia no yuav nthuav qhia cov teeb meem no thiab piav qhia meej yog vim li cas lawv tshwm sim. Peb yuav tshawb nrhiav kev tshawb fawb tom qab qhov ua tsis tiav. Koj yuav tau txais ib txoj kev npaj meej rau kev kuaj pom kev xa tawm tsis zoo thiab tiv thaiv cov kev ua tsis tiav ntawm qhov tshwm sim.

Cov Kev Nkag Siab Tseem Ceeb

Ib tug relay tsis yog ib feem dav dav. Xav "ze txaus" ua rau ncaj nraim rau tsis ua haujlwm. Txhawm rau kom nkag siab txog dab tsi yog qhov yuav tshwm sim ntawm kev xaiv lub relay, peb yuav tsum xub nkag siab cov ntsiab lus tseem ceeb uas txhais tau li cas ib tug relay ua haujlwm thiab nws txwv.

Txuam cov kev ntsuas no yog qhov yuav tsum tau ua. Nws yog qhov tseem ceeb rau kev nyab xeeb thiab kev ntseeg tau ntawm txhua qhov Circuit Court koj tsim lossis kho. Txhua qhov tshwj xeeb sawv cev rau lub cev lossis hluav taws xob txwv. Yog tias koj tshaj nws, koj yuav ua kom paub tseeb thiab feem ntau tsis ua haujlwm.

Peb yuav rhuav tshem qhov tseem ceeb tshaj plaws uas yuav tsum tau sib piv kom raug. Tau txais ib qho ntawm cov tsis yog no tuaj yeem ua rau cov teeb meem tau sib tham tom qab hauv tsab xov xwm no.

Ntawm no yog ib qho kev tawg ntawm cov kev ntsuas uas tseem ceeb thiab vim li cas lawv muaj teeb meem.

Daim duab tus qauv 5-tus pin Automotive relay. Ob lub terminals txuas rau sab hauv coil. Thaum koj siv qhov tseeb voltage ntawm no, nws tsim ib daim teb sib nqus. Daim teb no rub tawm ib qib me me, uas txav tus neeg sib cuag. Nws tawg txuas ntawm ib lub davhlau ya nyob twg (ib txwm kaw tus pin) thiab ua kom muaj kev sib txuas tshiab rau lwm tus (cov nquag qhib PIN). Txhua qhov ntawm cov ntu no muaj kev txwv nruj me ntsis.

Lub cev tsis ua haujlwm ntawm qhov tsis ua haujlwm

Thaum cov relay specification tsis raug, qhov tsis yog random. Nws yog qhov tshwm sim ncaj qha ntawm kev ua txhaum lub cev thiab hluav taws xob txwv ntawm cov khoom siv. To taub ua li cas tshwm sim sab hauv tso cai rau kev kuaj mob thiab kev tiv thaiv kom raug.

Tam sim no peb yuav tshawb xyuas cov qauv tsis tau ua tiav. Rau txhua tus, peb yuav piav qhia tias yuav ua li cas, vim li cas nws tshwm sim, thiab cov tsos mob uas koj yuav pom. Qhov no yog qhov tseem ceeb ntawm kev daws teeb meem rov qab -} cov teeb meem ntsig txog.

Coil hlawv

Chev Burlows yog lub thermal tsis ua hauj lwm ntawm relay's electromagnet. Cov xov tooj liab ntim hluav taws xob zoo uas ua rau cov coil overheats. Nws cov txha hniav laus nyias rwb thaiv tsev melts, thiab cov cua sov - Circuition sib tawm ib leeg.

Qhov no tsis ua hauj lwm muaj ob lub laj thawj tseem ceeb. Feem ntau cov feem ntau yog thov voltage ntau dua li qhov kev ntaus nqi kauj. 12V chev siv hluav taws xob los ntawm 24V system yuav kos ob lub tswv yim tam sim no. Qhov no ua rau muaj kev kub ntxhov sai thiab hlawv.

Siv tsawg heev voltage ua rau tsis ua haujlwm sib txawv. Lub sib nqus daim teb tsim tawm yog qhov tsis muaj zog dhau los rub lub armature thiab kaw cov neeg. Cov relay tej zaum yuav suav tau, Buzz, lossis tsis ua haujlwm txhua. Qhov no "hauv {- ntawm" lub xeev tseem tuaj yeem ua kom cua sov tsim thiab teeb meem tsis ua tiav.

Cov tsos mob muaj tseeb. Koj yuav feem ntau hnov ​​ntxhiab taws hlawv varnish lossis yas. Kev kuaj pom kev pom yuav pom ib qho kev txiav tawm, o, lossis melted relay casing. Thaum lub hwj chim siv rau kev tswj Circuit Court, koj yuav tsis hnov ​​tus yam ntxwv "nyem" ntawm kev ua haujlwm relay ua haujlwm.

Hu Rau Vuam

Hu rau Vuam yog ib qho kev phom sij tshaj plaws. Tus relay sab hauv kev hloov pauv sab hauv yog fused tas mus li tas mus li hauv txoj hauj lwm kaw. Lawv yuav tsum qhib thiab kaw.

Qhov no tshwm sim rau ib qho tseem ceeb: ntau dhau tam sim no. Thaum cov relay sim hloov lub nra uas rub ntau tam sim no dua li nws cov kev sib cuag tuaj yeem ua, cov hom hluav taws xob muaj zog ntawm cov neeg sib chwv. Qhov no tshwm sim thaum lawv qhib lossis kaw. Qhov ARC no yog qhov kub heev, melting cov hlau qhov chaw ntawm cov neeg. Thaum cov neeg tiv toj ze, cov hlau molten los ntawm ob tog fuses. Qhov no tsim ib lub chaw weld ruaj khov.

Qhov no tshwj xeeb tshaj yog thaum hloov cov khoom siv hluav taws xob zoo li cov motors lossis solenoids, lossis lub peev xwm cape. Cov cuab yeej siv no muaj loj heev inrush tam sim no thaum pib. Qhov no tuaj yeem ua tau ntau zaug lawv li qub khiav tam sim no. Ib tug relay tsis tso rau qhov no Inrush yuav weld yuav luag tam sim ntawd.

Cov tsos mob tseem ceeb yog tias cov tswj hwm hluav taws xob hauv nruab nrab ntawm txawm tias thaum nws yuav tsum tau tawm. Piv txwv li, lub cev muaj zog txuas ntxiv khiav tom qab koj tau tua lub pob nyem. Koj tseem tuaj yeem hnov ​​cov lus sib dhos "nyem" raws li lub kauj tsib - Enteratizes thiab Armature sim rub tawm. Tab sis Welded cov neeg hu kom Circuit Court.

Hu rau Pitting

Hu rau pitting thiab yaig yog qhov tuag qeeb qeeb rau kev rov tuag. Cov chaw ntawm cov neeg hloov mus ua cov ntxhib, blackened, thiab hnav tam sim ntawd lub sijhawm. Qhov no ua rau kev sib txuas tsis zoo lossis sib tham hluav taws xob.

Tag nrho cov neeg kho tshuab rov qab muaj qee qhov arcing thaum hloov. Tab sis tus txheej txheem no ceev nce siab nrog kev siv tsis raug. Siv ib qho relay nrog tsis txaus voltage ntsuas yog qhov tseem ceeb ua. Yog tias ib tug relay rated rau 24V yog siv los hloov 120V, cov arc uas cov ntawv uas qhib yuav muaj zog dua thiab ntev dua}} kav. Nws vaporizes ntxiv cov khoom sib chwv nrog txhua lub voj voog.

Siv cov xa khoom tsim rau AC Circuits hloov DC lub zog yog lwm qhov yuam kev. Ac lub zog dhau los ntawm xoom volts 120 zaug ib ob. Qhov no pab tua cov arc ib txwm muaj. DC lub zog txuas ntxiv mus ntxiv, yog li arc yog ntau nyuaj rau tawg thiab kav ntev dua. Qhov no ua rau yaig loj heev.

Cov tsos mob ntawm pitting feem ntau sib txawv thiab ntxhov siab. Cov cuab yeej raug tswj tau yuav flicker lossis ua haujlwm sporadically. Koj tuaj yeem ntsuas ib qho hluav taws xob tshwj xeeb poob hla cov neeg sib cuag relay. Qhov no qhia tau siab tiv taus. Qhov kev tiv thaiv no kuj tseem ua rau muaj cua sov, uas tuaj yeem ua puas lub vaj tsev thiab cov khoom nyob ze. Nws thiaj li, cov neeg sib chwv tau ntau heev uas lawv tsis tuaj yeem sib txuas tau txhua.

Circuit Court kev puas tsuaj thiab phom sij

Ib tug ua tsis tau relay tsis tshua muaj ib leeg. Nws tsis ua tiav feem ntau kis, ua rau lwm qhov kev puas tsuaj, ntau dua qhov khoom kim ntawm cov kab ke. Nws kuj tseem tsim kev txaus ntshai hnyav.

Ib kauj uas luv tawm tuaj yeem txav ntau dhau tam sim no los ntawm nws txoj kev tswj hwm. Qhov no tuaj yeem yooj yim rhuav tshem tus tsav tsheb tshwj xeeb ntawm lub microcontroller card, lossis daim ntawv ecu. Dab tsi yuav tsum tau hloov kho yooj yim tam sim no ua ib txoj kev nyuaj thiab tus nqi kim heev - theem kho.

Kev siv kev nyab xeeb yog qhov tseem ceeb. Welded cov neeg tiv toj yog thawj qhov ua rau muaj kev sib tw khiav tawm ntawm thermal. Lub caij cua kub uas tsis tuaj yeem muab tua yuav overheat. Nws tuaj yeem muaj peev xwm yaj nws cov ntaub ntawv txuas thiab zes cov khoom nyob ze. Ib lub cev muaj zog uas khiav txuas ntxiv tuaj yeem hlawv nws tus kheej tawm. Ib qho twj tso kua roj uas tsis txhob kaw cov roj teeb lub tsheb thiab ua rau muaj kev phom sij hluav taws tseem ceeb.

Cov tsos mob ntawm qhov kev puas tsuaj no feem ntau yog li cas thawj ceeb toom tus neeg siv rau ib qho teeb meem. Koj yuav pom cov tshuab ua fuses lossis trippuit cocuit cocuit rau lwm qhov hauv cov kab ke. Lub zog muab rau kev tswj hwm hluav taws xob yuav raug puas ntsoog. Hauv cov xwm txheej hnyav tshaj plaws, koj yuav pom cov pov thawj ntawm kev puas tsuaj kub lossis hluav taws pib los ntawm lub cuab yeej cov relay tau tsim nyog tswj. Qhov no yog vim li cas xaiv Relay yog qhov tseem ceeb rau kev tsim qauv nyab xeeb.

Ib qho kev kawm paub tseeb

Kev npaj siab yog pab tau, tab sis ib tug tiag - Cov qauv hauv ntiaj teb ua rau cov ntsiab lus meej. Cia peb taug kev los ntawm cov xwm txheej ib qho: hloov cov twj tso kua roj relay hauv cov tsheb thauj neeg cov tsheb. Qhov no qhia tau raws nraim li cas qhov kev ua txhaum me me ua rau muaj kev phom sij.

Cov xwm txheej:Peb yuav tsum tau hloov chaw ua hauj lwm roj twj tso kua mis relay. Thawj feem yog tus qauv automotive relay nrog 12V DC chev thiab cov neeg sib tiv tauj rau 30 amps. Qhov no yog tsim los daws lub tsheb 12v hluav taws xob thiab qhov siab tam sim no kos cov roj twj tso kua mis.

Qhov tsis ncaj ncees lawm relay:Nyob rau hauv peb lub cuab tam, peb pom ib tug relay uas zoo tib yam. Nws muaj tib tus pin layout thiab haum txig rau hauv lub qhov (socket). Txawm li cas los xij, ib qho zoo saib cov ntawv sau zoo ntawm cov casing qhia nws yog 24V DC chev relay nrog cov neeg muaj npe rau tsuas yog 15 amps. Nws tau npaj rau ib qho hnyav - Luag tsheb tsheb.

Kauj Ruam - by -}} kauj ruam txiav txim:

Cov teeb meem tshwm sim:Peb nruab 24v relay rau hauv 12v Circuit Court. Thaum qhov chaw nres tau muab rau, lub tsheb lub computer xa 12v teeb liab rau cov xa khoom xa tuaj. Txij li thaum cov coil yog tsim rau 24V, thib 12v lub cim tsim cov teb sib nqus uas yog qhov tsis muaj zog. Cov roj twj tso kua mis yuav tsis tig rau txhua qhov, lossis nws yuav ua haujlwm sib txawv raws li qhov tsis muaj zog sib nqus los tuav cov kev sib chwv tawm tsam kev co. Lub tsheb tsis pib lossis khoom muag.

Yuam kev ua yeeb yam thiab tsis ua tiav:Cia peb xav tias tus relay tswj tau tswj kom ze. Lub sijhawm hu kov, lub cev muaj roj tsav pib kos nws tam sim no, uas tuaj yeem ua rau ze li ntawm 30 amps. Qhov no tam sim no ntws los ntawm kev sib tiv tauj rau tsuas yog 15 amps.

Qhov tshwm sim:Cov kev tiv tauj yog tam sim ntawd thiab tsausmuag overloaded. Ib qho kev ua yeeb yam khaus yog tsim tawm, thiab cov chaw sib tiv tauj ua kom sov li mus rau lawv qhov po melting hauv ib feem ntawm ib ob. Lawv weld kaw.

Qhov tshwm sim txaus ntshai:Cov twj tso kua roj yog tam sim no mus tas li. Txawm hais tias thaum peb tig lub ignition tawm, welded hu ua kom cov Circuit Court. Lub twj tso kua mis sau tsis tu ncua, txhuav lub roj teeb thaum hmo ntuj. Muaj kev phom sij ntau dua, kev ua haujlwm khiav tas li qub tuaj yeem ua kom muaj kev phom sij hauv hluav taws xob muaj kev phom sij nyob rau hauv muaj cov roj av vapacine. Ib qho kev ua txhaum yooj yim tau tsim ib lub tsheb txaus ntshai thiab tsis muaj kev ntseeg.

Txoj cai relay:Hauv kev sib piv, qhov tseeb 12v, 30a relay yuav tau ua haujlwm huv si nrog 12v teeb liab. Nws cov kev sib cuag 30na yuav tau daws lub twj tso kua mis tam sim no nrog yooj yim. Nws yuav ua haujlwm nyab xeeb thiab ntseeg tau rau kaum tawm txhiab tus mus.

Ntawm no yog qhov sib piv ntshiab:

Phau Ntawv Qhia Kev Puas Tsuaj

Thaum koj xav tias ib tug relay yog qhov teeb meem, txoj kev kuaj pom kev ua haujlwm tuaj yeem lees paub tias koj kuaj sai sai. Cov lus qhia no muab cov kws tshaj lij kev ua haujlwm rau kev kawm paub yuav ua li cas los txiav txim seb cov relay puas lawm.

Ceeb Toom: Nco ntsoov disconnect tag nrho lub zog los ntawm Circuit Court ua ntej tshem tawm lossis tuav ib qho kev sib dhos. Ua haujlwm ntawm cov ciaj ciam tsheb yog qhov txaus ntshai heev.

Kauj ruam 1: Kev Soj Ntsuam Kev Soj Ntsuam

Koj thawj cov cuab yeej yog koj lub qhov muag, pob ntseg, thiab qhov ntswg. Ua ntej ncav cuag rau lub malcimeter, ua ib qho kev kuaj xyuas yooj yim.

Saib rau pom cov cim ntawm lub cev puas. Puas muaj cov kab nrib pleb hauv lub tsev yas? Koj puas pom cov cim dub dub lossis kev sib deev uas yuav qhia txog overheating? Puas yog lub warped lossis melted?

Mloog. Nrog rau lub relay ntsia thiab lub Circuit Court powered (yog tias muaj kev nyab xeeb ua li ntawd), muaj lwm tus neeg ua haujlwm hloov pauv uas tswj nws. Koj yuav tsum tau hnov ​​qhov sib txawv, tawg "nyem" los ntawm relay raws li nws ua haujlwm. Qhaj ntawv ntawm nias cov ntsiab lus rau ib tug coil lossis kev tswj hwm cov teeb meem. Ib lub suab nrov lossis sib sau ua ke qhia tau qhov teeb meem nrog cov coil voltage. Nco ntsoov, nyem nyem nkaus xwb yog cov kauj ua haujlwm. Nws tsis tau lees tias cov neeg hu tau ua ib qho kev sib txuas zoo.

Hnov tsw cov relay. Lub coil xaim muaj cov ntxhiab tsw heev ntawm melted yas thiab kua roj sternish. Nov yog lub cim meej ntawm cov neeg tuag taus.

Kauj ruam 2: Kev Ntsuas Lub Tog Zaum

Qhov kev ntsuas no tau siv ntau qhov kev sib txuam los tshawb xyuas cov kev sib txuas ntawm sab hauv yam tsis muaj lub zog siv. Teem koj qhov sib txawv rau cov tsis kam (ω) lossis txuas ntxiv (beeping) hom.

Ntsuam xyuas lub kauj:Tso koj cov kev sib tw sib txawv hla ntawm ob lub terminals (feem ntau sau npe 85 thiab 86 ntawm automotive regayse). Koj yuav tsum ntsuas qhov tshwj xeeb tsis kam. Tus raug 12v relay chev yuav muaj kev tiv taus nruab nrab ntawm 50 thiab 200 ohms. Ib tug 5v relay yuav qis dua. Yog tias koj nyeem infinite tsis kam (ol lossis qhib lub voj), lub kauj xaim yog tawg sab hauv. Yog tias koj nyeem tsawg heev tsis kam (ze 0 ohms), lub kauj yog luv- circuited. Txheeb xyuas cov khoom tivthaiv cov datasheet rau qhov tseeb yog yog tias ua tau.

Ntsuam xyuas cov kev tiv toj:Tam sim no, sim cov feem hloov. Txheeb xyuas qhov sib txawv (C lossis 30), feem ntau qhib (tsis muaj lossis 87), thiab ib txwm kaw (NC lossis 87A) cov chaw kaw.

Qhov chaw tshwm sim ntawm cov hom thiab NC. Lub mottimeter yuav tsum qhia kev txuas ntxiv (ib qho ze - xoom kev nyeem ntawv lossis beep).

Qhov chaw probes ntawm ib qho thiab tsis muaj. Lub mottimeter yuav tsum qhia ib qho qhib Circuit Court (infinite tsis kam).

Yog hais tias cov relay tsis muaj qhov kev ntsuas tsis txaus ntseeg no, nws yog qhov tsis zoo thiab yuav tsum tau hloov.

Kauj ruam 3: Powered nres tsheb xeem

Qhov kev ntsuas ntsuas ntsuas no yog tias cov relay hloov pauv kom raug raws li kev thauj khoom. Koj yuav xav tau cov dC fais fab sib txawv uas phim cov relay tus coil voltage.

Kev Nyab Xeeb Ua Ntej:Teem koj lub zog hluav taws xob rau qhov tseeb voltage teev ntawm relay casing. Txuas lub zog hluav taws xob ua rau lub coil terminals. Ua kom koj cov ntiv tes tshem kom meej txog cov kev sib tiv tauj.

Siv zog:Tig rau lub zog. Koj yuav tsum tau hnov ​​cov khoom siv "nyem" raws li lub coil energizes thiab armature txav.

Xeem hu rau thaum muaj hwj chim:Nrog rau cov coil tseem energized, siv koj multimeter (tseem nyob hauv hom txuas ntxiv) kom rov ua rau cov neeg sib tiv tauj.

Qhov chaw tshwm sim ntawm cov hom thiab NC. Nws yuav tsum tam sim no qhia tau ib qho qhib Circuit Court. Qhov kev sib txuas yuav tsum tawg.

Qhov chaw probes ntawm ib qho thiab tsis muaj. Nws yuav tsum tam sim no qhia txuas ntxiv. Qhov kev sib txuas yuav tsum tau ua.

Yog tias ib tug relay dhau txoj kev kuaj uas tsis muaj zog tab sis tsis tau xeem no, nws qhia tau ib lub tshuab tsis ua haujlwm. Piv txwv li, yog tias tsis muaj kev hu tsis tau txuas ntxiv, lub tshuab sab hauv tau tawg lossis cov neeg sib chwv tau hnav rau kev sib txuas. Yog tias NC lub suab nrov kaw, lub armature yog daig lossis cov neeg sib chwv welded.

Qhov kawg nkaus kev coj mus

Xaiv ib qho relay tsis yog hais txog kev nrhiav ib qho uas tsuas yog haum. Nws yog hais txog kev ua ib qho kev xaiv enginessing zoo rau kev ua haujlwm thiab kev nyab xeeb ntawm koj txoj haujlwm tag nrho. Qhov tsis ncaj ncees lawm repay yeej tsis muaj ib qho kev sib tw. Nws yog qhov lav pom zoo ntawm tsis ua haujlwm.

Los ntawm kev kawm cov tshooj lus los ntawm phau ntawv qhia no, koj tuaj yeem zam kev ua yuam kev ib yam thiab tsim kom muaj zog ntau dua, txhim khu kev qha. Tus tseem ceeb takaways yog yooj yim tab sis tseem ceeb.

Nco ntsoov phim cov lus tseem ceeb:Coil voltage, hu rau tam sim no thiab voltage kev ntsuas, thiab kev teeb tsa lub cev tsis tuaj yeem ua tau. Xa mus rau cov datasheet, tsis yog qhov zoo li lub cev.

Paub cov cim ntawm tsis ua haujlwm:Pom txog cov tsos mob ntawm coil hlawv, tiv toj vuam, thiab yaig. Ib qho tsis hnov ​​tsw lossis cov khoom seem uas nyob ntawm thaum nws yuav tsum tau tawm cov ntsiab lus ncaj qha rau kev xa tawm.

Thaum tsis ntseeg, sim nws:Tsis txhob cia siab rau tus neeg phem relay. Ob peb feeb nrog pulultimeter ntau thiab lub zog hluav taws xob tuaj yeem kuaj pom ib qho tsis haum. Qhov no cawm koj cov sij hawm daws teeb meem thiab tiv thaiv kev puas tsuaj.

Thaum kawg, ceev faj cov kev xaiv yog lub hauv paus ntawm cov hluav taws xob thiab ua haujlwm hluav taws xob. Los ntawm kev kho txhua tus relay raws li qhov tseem ceeb tivthaiv, koj paub tseeb tias koj cov phiaj xwm tsis yog ua haujlwm xwb tab sis tseem muaj kev nyab xeeb thiab muaj kev nyab xeeb rau lub sijhawm ntev.