Nyob rau hauv kev tswj fais fab thiab automation circuits, relays pab raws li qhov tseem ceeb ntawm kev hloov cov khoom siv uas nquag ua haujlwm; lawv cov kev sib cuag ntev thiab cov teeb meem cuam tshuam nrog lawv cov kev tiv thaiv deb tshaj cov hluav taws xob hloov hluav taws xob xws li MOSFETs. Relays feem ntau yog siv los tsav siab - fais fab inductive loads -xws li DC motors, solenoid li qub, thiab clutches- qhov twg qhov kev hloov pauv feem ntau ua rau siab -voltage back-EMF thiab hluav taws xob arcs. Sij hawm dhau mus, qhov no ua rau kev sib cuag erosion, oxidation, kev sib cuag tsis zoo, lossis txawm tias vuam thiab nplaum, ua rau cov cuab yeej siv lub neej luv luv. Xaiv high-cov khoom zoo ntawm cov nyiaj sib tiv tauj txhim kho arc tsis kam thiab kev laus ua haujlwm ntawm cov khoom siv, txo cov kev sib cuag zoo raws li cov qauv kev ua haujlwm thiab ua kom lub sijhawm ntev -, txhim khu kev lag luam ntawm relay.
Inductive loads yog lub hauv paus ua rau kev puas tsuaj ntawm relay thiab lub hom phiaj tseem ceeb rau kev tiv thaiv thaum ua haujlwm thiab tu. Thaum cov khoom siv xws li DC motors, solenoid li qub, thiab electromagnetic clutches raug kaw, lawv tsim cov hluav taws xob thim rov qab mus txog ntau pua lossis ntau txhiab volts. Nyob rau hauv siab - tam sim no tej yam kev mob, cov high -voltage surges tau ncaj qha mus rau qhov chaw tiv tauj, ua rau puas tsuaj mus tas li. Nyob rau hauv qis- tam sim no qhov xwm txheej (ze li 1A), thaum lub surge yuav tsis ua rau tam sim ntawd puncture, nruam arcing ua rau tsim cov hlau oxide txheej thiab carbon deposits rau ntawm qhov chaw tiv tauj, ua rau muaj kev vam meej nyob rau hauv kev sib cuag. High-precision relays feem ntau siv tshwj xeeb hluav taws xob tiv tauj rivets; cov feature no meej kev tsim kho thiab ruaj khov conductivity, pab kom txo tau qhov kev pheej hmoo ntawm kev sib cuag tsis zoo tshwm sim los ntawm me arcing.
Nws yog ib qho tseem ceeb kom paub txog tias kev sib tiv tauj yog ib qho irreversible nam ntawm kev laus ib txwm, thiab tag nrho kev tiv thaiv tsis ua hauj lwm yog tsis yooj yim sua; Lub hom phiaj tseem ceeb ntawm kev tiv thaiv kev tiv thaiv yog kom qeeb cov txheej txheem kev laus thiab txuas ntxiv cov cuab yeej siv lub neej. Tom qab lub sijhawm hloov mus ua haujlwm, cov chaw sib cuag tau khaws cov pa roj carbon, oxidize, thiab hnav, ua rau kom tsis txhob ua rau lub ntsej muag smoothness. Nyob rau theem tom ntej ntawm kev ua haujlwm, kev tiv thaiv tiv thaiv tuaj yeem ua rau muaj kev cuam tshuam loj heev, ua rau muaj teeb meem xws li overheating, hluav taws xob poob, lossis teeb liab anomalies. Tus qauv tswj relays tau nruab nrog cov khoom siv nyiaj sib cuag rivets, uas muaj kev ua haujlwm zoo heev thiab zoo dua oxidation tsis kam; cov no zoo qeeb tus nqi ntawm kev sib cuag aging thiab txhim khu kev lag luam stability.
Lub hauv paus tseem ceeb rau kev txiav txim siab arc tsim yog lub dielectric tawg voltage ntawm huab cua, uas kuj yog ib qho tseem ceeb tsim qauv rau kev tiv thaiv kev tiv thaiv. Nyob rau hauv tus qauv kub thiab siab, huab cua tawg voltage ranges ntawm 200V txog 300V; Yog hais tias qhov hluav taws xob nyob rau lub sijhawm ntawm kev sib cais sib cais tshaj qhov pib no, cov ntaub ntawv arc ruaj khov, ua kom muaj kev sib cuag corrosion thiab hnav. Yog li ntawd, kev lag luam - qauv kev tiv thaiv kev ntsuas- xws li voltage stabilization thiab absorption circuits - aim kom nruj me ntsis txwv tsis pub dhau qhov sib cais voltage kom qis dua 200V, yog li suppressing arc tsim ntawm qhov chaw thiab txo qhov kev puas tsuaj. Cov khoom sib tiv tauj rivets siv nyob rau hauv ntau lub keyboards undergo high -voltage arc-kev ua hauj lwm, ua rau lawv sib xws nrog cov qauv arc{11}} kev tiv thaiv circuits thiab zoo kawg nkaus haum rau kev tiv thaiv kev tsim qauv.
Los daws cov teeb meem hais txog arcing thiab rov qab -EMF (electromotive force) hauv inductive loads, kev lag luam feem ntau siv diode-raws li snubber circuits rau kev tiv thaiv kev tiv thaiv; Txawm li cas los xij, qhov ua tau zoo sib txawv heev nyob ntawm qhov kev teeb tsa. Txawm hais tias tus qauv diodes tuaj yeem thim rov qab-EMF, lawv txuas ntxiv lub sijhawm tso tawm thiab ncua lub sijhawm arc, yog li ua kom nrawm rau kev hnav. Nyob rau hauv sib piv, ib tug configuration combining tus txheej txheem diode nrog ib tug Zener diode nyob rau hauv series khaws voltage-clamping muaj peev xwm thaum lub sij hawm drastic txo lub sij hawm tso tawm- mus txog lub teb ceev ntawm ib tug tsis tiv thaiv Circuit Court - yog li ntsuas kev tiv thaiv nrog kev ua hauj lwm efficiency. Cov khoom tshwj xeeb cov nyiaj tiv tauj rivets tsim rau cov relays yog optimized rau siab - zaus hloov daim ntawv thov, muab superior tiv thaiv arc yaig.
Hauv siab - zaus DC hloov daim ntawv thov, txoj kev tiv thaiv tsis raug tsis tuaj yeem tiv thaiv cov neeg sib cuag thiab ua kom cov khoom siv tsis ua haujlwm; Cov kev coj ua zoo li no raug zam nruj thaum lub sijhawm tu thiab rov kho dua. Thaum tswj cov loads zoo li DC solenoid li qub los yog clutches ntawm lub siab zaus, tsis tu ncua arcing ua rau ntsuab -xiav txheej txheej los ua rau ntawm cov neeg sib cuag. Qhov tshwm sim no tshwm sim vim tias qhov kub arc siab ua rau muaj tshuaj lom neeg ntawm atmospheric nitrogen thiab oxygen, tsim cov tshuaj corrosive uas ua raws li cov chaw sib cuag thiab ua rau cov hluav taws xob tsis tu ncua. Silver contact rivets tsim rau lub qhov (socket) -hom relays siv corrosion- tiv thaiv cov txheej txheem tsim los txo cov tshuaj corrosion thiab txo qhov tsis ua hauj lwm nyob rau hauv siab - zaus ua haujlwm.
Tshaj li corrosion, kev sib cuag cov ntaub ntawv yog ib qho tsis ua hauj lwm hom nyob rau hauv siab - lub hwj chim capacitive thiab inductive load daim ntaub ntawv, feem ntau ua rau hu rau vuam (sticking). Surge tam sim no thaum lub sij hawm hloov ua kom khaus arcs uas ua rau lub zos melting; hlau migrates ntawm lub anode thiab cathode - ua ib tug protrusion ntawm lub anode thiab kev nyuaj siab ntawm lub cathode. Sij hawm dhau mus, qhov kev tsis sib haum xeeb ntawm cov qauv no tuaj yeem ua kom tiav vuam lossis jamming, ua rau poob ntawm kev hloov pauv. High-cov khoom zoo ntawm cov nyiaj sib tiv tauj rivets, tsim los ntawm kev tsim cov txheej txheem sib xyaw, muaj cov qauv zoo ib yam thiab ruaj khov uas ua rau txo cov khoom xa mus los ntawm qhov siab - tam sim no surges.
Txhawm rau tiv thaiv kev sib cuag cov ntaub ntawv hloov pauv thiab vuam tsis ua haujlwm, kev lag luam tau tsim ob txoj hauv kev paub tab: ua kom zoo dua kev tiv thaiv hluav taws xob thiab hloov kho cov ntaub ntawv sib cuag. Nyob rau theem Circuit Court, mob siab rau kev tiv thaiv kev tiv thaiv thiab snubber circuits tuaj yeem siv los ua kom tsis muaj zog tam sim no thiab arc zog. Ntawm cov khoom siv, siab -kawg cov ntaub ntawv sib cuag- xws li nyiaj - tin oxide, nyiaj - tungsten, thiab nyiaj - tooj liab alloys - tuaj yeem siv los muab kev tiv thaiv zoo tshaj rau cov khoom xa mus thiab arc yaig. Ua tsaug rau lawv lub zog siab, tiv thaiv tshav kub, thiab tiv thaiv kev sib cuag vuam, cov nyiaj sib txuas ntawm cov hlau no ua rau txo qis qhov tshwm sim ntawm kev sib cuag melting, cov khoom hloov pauv, thiab adhesion tsis ua hauj lwm, ua rau lawv qhov kev xaiv zoo tshaj plaws rau siab - zog relays.
Nyob rau hauv cov ntsiab lus, qhov tsis ua hauj lwm ntawm kev sib cuag ntawm cov nyiaj alloy yog feem ntau tshwm sim los ntawm peb yam: arc yaig, hloov khoom siv, thiab oxidation / carbon buildup. Los ntawm kev tsim qauv kev tiv thaiv Circuit Court, nruj me ntsis tswj cov kev hloov pauv hloov pauv, thiab hloov kho cov ntaub ntawv sib cuag, kev pabcuam lub neej ntawm relays tuaj yeem ua kom tiav, cov khoom siv tsis ua haujlwm raug txo qis, thiab lub sijhawm ntev - lub sijhawm ua haujlwm ruaj khov ntawm automated control circuits guaranteed.
Thov koj xav tiv tauj mus rau cov kws tshaj lij kev tawm tswv yim thiab cov kev daws teeb meem tsim nyog txogkhoom tiv tauj rivetkev xaiv, daim ntawv thov- cov kev teeb tsa tshwj xeeb, kev tsim hluav taws xob tiv thaiv, thiab kev taw qhia txog kev daws teeb meem lossis kev ntsuas kho.
tiv tauj peb
