Katangar tsaro ta iyakance makamashin da ke shiga wurin, wato, ƙarfin lantarki da iyaka na yanzu, ta yadda layin filin ba zai haifar da tartsatsi a kowace jiha ba, ta yadda ba zai haifar da fashewa ba.Wannan hanyar tabbatar da fashewa ana kiranta aminci na ciki.Abubuwan tsaro na gama gari sun haɗa da shingen aminci na zener, shingen aminci na transistor, da keɓantattun shingen tsaro.Waɗannan shingen tsaro suna da nasu fa'idodin kuma duk masu taimako ne a cikin samar da masana'antu.Masu gyara masu zuwa daga Suixianji.com za su gabatar da ƙa'idar aiki da aikin shingen aminci, da kuma bambanci daga shingen keɓewa.
Katangar tsaro kalma ce ta gaba ɗaya, ta kasu zuwa shingen aminci na zener da shingen tsaro keɓewa, keɓantaccen shingen tsaro ana magana da shi azaman shingen keɓewa.
Yadda shingen tsaro ke aiki
1. Ƙa'idar aiki na keɓewar sigina:
Na farko, siginar watsawa ko kayan aiki ana canza shi ta hanyar na'urar semiconductor, sannan kuma a keɓe shi kuma a canza shi ta na'urar da ke da saurin haske ko Magnetic-sensitive, sannan a lalatar da ita kuma ta dawo zuwa siginar ta asali kafin keɓewa, da ikon. samar da keɓaɓɓen sigina ya keɓe a lokaci guda..Tabbatar cewa siginar da aka canza, samar da wutar lantarki da ƙasa suna da cikakkiyar 'yanci.
2. Ƙa'idar aiki na shingen aminci na Zener:
Babban aikin shingen tsaro shine iyakance haɗarin haɗari na wurin aminci don shiga wurin mai haɗari, da iyakance ƙarfin lantarki da halin yanzu da aka aika zuwa wuri mai haɗari.
Ana amfani da Zener Z don iyakance ƙarfin lantarki.Lokacin da madauki na madauki yana kusa da ƙimar iyakar aminci, ana kunna Zener, ta yadda wutar lantarki a kan Zener koyaushe ana kiyaye shi ƙasa da iyakar aminci.Ana amfani da Resistor R don iyakance halin yanzu.Lokacin da ƙarfin lantarki ya iyakance, zaɓin da ya dace na ƙimar resistor na iya iyakance madauki na halin yanzu ƙasa amintaccen ƙimar iyaka na halin yanzu.
Ayyukan fuse F shine don hana gazawar ƙarancin wutar lantarki na kewayawa saboda bututun zener da ake hurawa da babban halin yanzu yana gudana na dogon lokaci.Lokacin da aka yi amfani da ƙarfin lantarki wanda ya wuce amintaccen ƙimar ƙarfin wutar lantarki zuwa kewaye, ana kunna bututun Zener.Idan babu fiusi, halin yanzu da ke gudana ta cikin bututun Zener zai tashi ba tare da iyaka ba, kuma a ƙarshe za a busa bututun Zener, ta yadda cin hanci ya rasa iyakar ƙarfinsa.Don tabbatar da iyakacin wutar lantarki na cin hanci yana da lafiya, fis ɗin yana busawa sau goma da sauri fiye da yadda Zener ke iya busawa.
3. Ka'idar aiki na keɓewar shingen aminci na keɓewar sigina:
Idan aka kwatanta da shingen aminci na zener, shingen tsaro mai keɓe yana da aikin keɓewar galvanic ban da ayyukan ƙarfin lantarki da iyakancewa na yanzu.Shingayen keɓewa yawanci yana ƙunshi sassa uku: naúrar iyakance makamashin madauki, sashin keɓewar galvanic da sashin sarrafa sigina.Naúrar iyakance ƙarfin madauki shine ainihin ɓangaren shingen tsaro.Bugu da ƙari, akwai ƙarin da'irori na samar da wutar lantarki don kayan aikin filin tuki da da'irorin ganowa don samun siginar kayan aiki.Naúrar sarrafa siginar tana yin siginar siginar gwargwadon buƙatun aikin shingen aminci.
Matsayin shingen tsaro
Katangar tsaro kayan aiki ne na aminci da babu makawa a masana'antu da yawa.Yafi sarrafa ko amfani da wasu abubuwa masu ƙonewa, irin su ɗanyen mai da wasu abubuwan da ake samu na ɗanyen mai, barasa, iskar gas, foda, da dai sauransu. Zubewa ko amfani da kowane ɗayan waɗannan abubuwan da bai dace ba zai haifar da yanayi mai fashewa.Don kare lafiyar masana'antu da daidaikun mutane, ya zama dole a tabbatar da cewa yanayin aiki ba zai haifar da fashewa ba.A cikin aiwatar da waɗannan kariyar, shingen tsaro yana taka muhimmiyar rawa.muhimmiyar rawa,
Katangar aminci tana tsakanin ɗakin sarrafawa da kayan aiki mai aminci a cikin wuri mai haɗari.Yana taka rawar kariya.Duk wani kayan aikin lantarki a cikin tsarin samarwa na iya haifar da fashewa, tartsatsi daban-daban, wutar lantarki mai tsayi, babban zafin jiki, da sauransu.
Dole ne a sami ingantaccen tsarin ƙasa a lokacin aikin shigarwa, kuma dole ne a ware kayan aikin filin daga wurin mai haɗari.In ba haka ba, ba za a iya watsa siginar daidai ba bayan an haɗa shi da ƙasa, wanda zai shafi kwanciyar hankali na tsarin.
Bambanci tsakanin shingen aminci da shingen keɓewa
1. Aikin keɓewar sigina
Kare ƙananan madauki na sarrafawa.
Attenuate tasirin amo a kan da'irar gwaji.
Murkushe tsangwama na ƙasan jama'a, mai jujjuya mitar, bawul ɗin solenoid da bugun jini wanda ba a san shi ba zuwa kayan aiki;a lokaci guda, yana da ayyuka na iyakance ƙarfin lantarki da ƙididdigewa na yanzu don ƙananan kayan aiki, gami da mai watsawa, kayan aiki, mai sauya mita, bawul ɗin solenoid, shigarwar PLC/DCS da fitarwa da sadarwa amintaccen kariya.
2. Keɓaɓɓen shingen aminci
Shamakin warewa: keɓe shingen tsaro, wato, ƙara aikin keɓewa bisa tushen shingen aminci, wanda zai iya hana tsangwama na madauki na yanzu zuwa siginar, kuma a lokaci guda yana kare tsarin daga tasirin makamashi mai haɗari daga yanayi.Misali, idan babban halin yanzu ya shiga layin filin, zai karya shingen keɓewa ba tare da ya shafi IO ba.Wani lokaci kuma ana iya fahimtar shi azaman mai keɓewa ba tare da aikin shingen tsaro ba, wato, yana da aikin keɓewa kawai don hana tsangwama sigina da kuma kare tsarin IO, amma baya samar da da'ira mai aminci ta zahiri.Don aikace-aikacen hana fashewa.
Yana ɗaukar tsarin kewayawa wanda ke keɓance shigarwa, fitarwa da samar da wutar lantarki ta hanyar lantarki daga juna, kuma ya cika buƙatun aminci na ciki don iyakance makamashi.Idan aka kwatanta da shingen aminci na Zener, kodayake farashin ya fi tsada, fa'idodin aikin sa na musamman yana kawo fa'idodi ga aikace-aikacen mai amfani:
Saboda amfani da keɓancewa ta hanyoyi uku, babu buƙatar layin ƙasa na tsarin, wanda ke kawo babban dacewa ga ƙira da gina ginin.
Abubuwan da ake buƙata don kayan aiki a wurare masu haɗari sun ragu sosai, kuma babu buƙatar amfani da keɓaɓɓen kayan aiki akan wurin.
Tun da siginar siginar ba sa buƙatar raba ƙasa, kwanciyar hankali da ikon hana tsangwama na ganowa da kuma sarrafa siginar madauki suna haɓaka sosai, don haka inganta amincin tsarin duka.
Keɓaɓɓen shingen tsaro yana da ƙarfin sarrafa siginar shigarwa mai ƙarfi, kuma yana iya karɓa da sarrafa sigina kamar thermocouples, juriya na thermal, da mitoci, waɗanda wannan shingen aminci na zener ba zai iya yi ba.
Keɓaɓɓen shingen tsaro na iya fitar da sigina guda biyu keɓancewar juna don samar da na'urori biyu ta amfani da tushen siginar iri ɗaya, kuma tabbatar da cewa siginar na'urorin biyu ba su tsoma baki tare da juna ba, kuma a lokaci guda inganta aikin amincin lantarki tsakanin na'urorin da aka haɗa. na'urori.
Abin da ke sama game da ƙa'idar aiki da aikin shingen tsaro, da sanin bambanci tsakanin shingen tsaro da shingen keɓewa.Mai keɓe siginar gabaɗaya yana nufin keɓancewar siginar a cikin tsarin da ke da rauni, wanda ke kare tsarin siginar ƙananan matakin daga tasiri da tsangwama na tsarin babban matakin.An haɗa shingen keɓewar sigina tsakanin amintaccen kewaye da kewayen da ba na zahiri ba.Na'urar da ke iyakance ƙarfin lantarki ko halin yanzu da ake bayarwa zuwa da'ira mai aminci a cikin kewayo mai aminci.
Lokacin aikawa: Nuwamba-26-2022