Amabhulokhi wetheminali enamazinga amaningi angasheshisa ukufakwa futhi onge isikhala, athathe uxhumano luye ezingeni eliphezulu

Noma iyiphi iphaneli yokulawula kagesi noma kagesi ingase idinge izintambo.Noma ngabe uhlelo lokusebenza okokusebenza kwabathengi, okokusebenza kwezentengiso, noma amasistimu wezimboni, abaklami badinga ukukhetha imikhiqizo ethembekile okulula ukuyifaka futhi engasebenza ngokwethembeka iminyaka eminingi.Amabhulokhi etheminali ahlangabezana nalezi zidingo futhi ayindlela evame kakhulu yokuxhumana kwemigqa yenkundla kagesi namasistimu kagesi afakwe iphaneli namandla.
Itheminali ejwayeleke kakhulu neyendabuko yohlobo lwezikulufa olulodwa iyisixazululo esilula, kodwa akusona isikhathi esisebenza kahle kakhulu sokusebenzisa isikhala noma umsebenzi.Ikakhulukazi lapho abantu becabanga ukuthi izintambo eziningi zifakwe ngendlela yamapheya asebenzayo noma amaqembu anezintambo ezintathu, amatheminali anamazinga amaningi ngokusobala anezinzuzo zokuklama.Ngaphezu kwalokho, izindlela ezintsha zohlobo lwentwasahlobo zithembeke kakhulu futhi kulula ukuzifaka kunemikhiqizo yohlobo lwesikulufu.Lapho ukhetha amabhulokhi wetheminali anoma yiluphi uhlelo lokusebenza, abaklami kufanele bacabangele izici zefomu nezinye izici zomkhiqizo ukuze bathole ukusebenza okungcono kakhulu.

Ulwazi oluyisisekelo lwamabhulokhi wetheminali
Ibhulokhi yetheminali eyisisekelo iqukethe igobolondo le-insulating (ngokuvamile uhlobo oluthile lwepulasitiki), elingafakwa kumzila wesitimela we-DIN ovumelana nezindinganiso zomkhakha noma oboshelwe ngokuqondile epuleti elingemuva ngaphakathi kwegobolondo.Kumabhulokhi wetheminali e-DIN ahlangene, izindlu ngokuvamile zivulwa ohlangothini olulodwa.Lawa mabhulokhi aklanyelwe ukupakishwa ndawonye ukuze kwandiswe ukonga isikhala, futhi ingxenye eyodwa kuphela yesitaki edinga isitaki sokugcina (Umfanekiso 1).

1. I-terminal blockable stackable yohlobo lwe-DIN iyindlela ehlangene futhi enokwethenjelwa yoxhumo lwezintambo zezinga lezimboni.
Amatheminali "E-Feedthrough" ngokuvamile anephoyinti lokuxhuma ucingo ohlangothini ngalunye, kanye ne-conductive strip phakathi kwalawa maphuzu amabili.Amabhulokhi wetheminali endabuko angakwazi ukuphatha isekethi eyodwa kuphela, kodwa imiklamo emisha ingaba namaleveli amaningi futhi ingase ihlanganise namadivayisi alula okuvikela ikhebula.
Iphoyinti lokuxhuma ucingo lwakudala yisikulufu, futhi kwesinye isikhathi kusetshenziswa iwasha.Intambo idinga ukusika indandatho noma isikhwama esimise okuka-U ekugcineni, bese siyifaka bese siyiqinisa ngaphansi kwesikulufu.Enye idizayini ihlanganisa ukuxhunywa kwesikulufu sebhulokhi yetheminali esitokisini sekheji, ukuze ucingo olungenalutho noma ucingo olune-cylindrical ferrule olula ekugcineni lufakwe ngokuqondile ku-clamp yekheji futhi lulungiswe.
Intuthuko yakamuva indawo yokuxhumana elayishwe entwasahlobo, eqeda ngokuphelele izikulufu.Imiklamo yangaphambili yayidinga ukusetshenziswa kwethuluzi lokusunduza isiphethu phansi, esasizovula indawo yokuxhuma ukuze kufakwe ucingo.Idizayini yasentwasahlobo ayivumeli kuphela izintambo ezisheshayo kunezingxenye ezijwayelekile zohlobo lwesikulufu, kodwa ukucindezela kwentwasahlobo okungashintshi futhi kumelana nokudlidliza kangcono kunamatheminali ohlobo lwesikulufu.
Ukuthuthukiswa kwalo mklamo wekheji lasentwasahlobo kubizwa ngokuthi i-push-in design (PID), evumela izintambo eziqinile noma izintambo ezicijile ukuthi ziphushwe ngokuqondile ebhokisini lokuhlangana ngaphandle kwamathuluzi.Kumabhulokhi wetheminali ye-PID, amathuluzi alula angasetshenziswa ukuxegisa izintambo noma ukufaka izintambo ezingenalutho.Idizayini elayishwe entwasahlobo inganciphisa umsebenzi wezintambo okungenani ngama-50%.
Kukhona futhi izesekeli ezivamile neziwusizo zetheminali.Ibha yebhuloho ye-plug-in ingafakwa ngokushesha, futhi amatheminali amaningi angaxhunywa ngesikhathi, anikeze indlela yokusabalalisa amandla ahlangene.Imithetho yokumaka ibaluleke kakhulu ukuze inikeze ukuhlonza okucacile komqhubi webhulokhi yetheminali ngayinye, futhi ama-spacers avumela abaklami ukuthi banikeze indlela ebalulekile yokuhlukanisa ibhulokhi yokugcina eyodwa noma ngaphezulu komunye nomunye.Amanye amabhulokhi etheminali ahlanganisa i-fuse noma akhiphe idivayisi ngaphakathi kwebhulokhi yetheminali, ngakho azikho izingxenye ezengeziwe ezidingekayo ukwenza lo msebenzi.
Gcina iqembu lesifunda
Kumaphaneli okulawula nawokuzenzakalela, amasekhethi okusabalalisa amandla (noma ngabe i-24 V DC noma kufika ku-240 V AC) ngokuvamile adinga izintambo ezimbili.Izinhlelo zokusebenza zesignali, njengokuxhumana nezinzwa, ngokuvamile ziyizintambo ezingu-2 noma ezi-3, futhi zingadinga ukuxhumeka okwengeziwe kwesihlangu sesignali se-analog.
Vele, zonke lezi zintambo zingafakwa kumatheminali amaningi ongqimba olulodwa.Kodwa-ke, ukupakisha konke ukuxhumeka kwesekethe enikeziwe ebhokisini le-junction enamazinga amaningi kunezinzuzo eziningi zokuqala neziqhubekayo (Umfanekiso 2).

2. Amabhulokhi etheminali yochungechunge lwe-Dinkle DP ahlinzeka ngosayizi abahlukahlukene bongqimba olulodwa, ungqimba olubili kanye nomumo wezendlalelo ezintathu.
Amakhondatha amaningi akha isekethe, ikakhulukazi amasiginali e-analog, ngokuvamile asebenza ngekhebuli enamakhondatha amaningi, kunokuba abe amakhondatha ahlukene.Ngenxa yokuthi sezivele zihlanganisiwe kukhebuli eyodwa, kunengqondo ukunqamula zonke lezi zikhondatha ezihlobene kutheminali eyodwa enamazinga amaningi esikhundleni samatheminali amaningana weleveli eyodwa.Amatheminali anamazinga amaningi angasheshisa ukufakwa, futhi ngenxa yokuthi bonke abaqhubi basondelene, abasebenzi bangakwazi ukuxazulula izinkinga kalula (Umfanekiso 3)

3. Abaklami bangakhetha amabhlogo wetheminali angcono kakhulu azo zonke izici zezinhlelo zabo zokusebenza.Amabhulokhi wetheminali anamazinga amaningi angasindisa isikhala esikhulu sephaneli yokulawula futhi enze ukufaka nokuxazulula izinkinga kube lula kakhulu.
Okunye okungaba kubi kwamatheminali anamazinga amaningi ukuthi mancane kakhulu ukuthi angasebenza namakhondatha amaningi ahilelekile.Inqobo nje uma ubukhulu bomzimba bulinganiselwe futhi nemithetho yokumaka icacile, izinzuzo zokuminyana kwezintambo eziphakeme zizobekwa phambili.Kutheminali evamile engu-2.5mm 2, ukujiya kwayo yonke itheminali enamazinga amathathu kungase kube ngu-5.1mm kuphela, kodwa amakhondatha angu-6 anganqanyulwa, okonga u-66% wesikhala sephaneli yokulawula ebalulekile uma kuqhathaniswa nokusebenzisa itheminali eneleveli eyodwa .
Ukuxhunywa komhlabathi noma okungase kube khona (PE) kungenye ukucatshangelwa.Uma isetshenziswa ngekhebula lesignali elinezisekelo ezimbili elivikelwe, itheminali enezingqimba ezintathu ine-conductor ezingxenyeni ezimbili eziphezulu kanye noxhumano lwe-PE ngezansi, olulungele ukuhlalisa ikhebula, futhi iqinisekisa ukuthi ungqimba oluvikelayo luxhumeke Isitimela se-DIN esingaphansi kanye nekhabhinethi.Endabeni yokuxhumeka komhlaba okuminyanisa okuphezulu, ibhokisi lokuhlangana elinezigaba ezimbili elinezixhumanisi ze-PE kuwo wonke amaphuzu linganikeza ukuxhumana okuphansi kakhulu endaweni encane kakhulu.
Uphumelele isivivinyo
Abaklami abasebenza ekucaciseni amabhulokhi wetheminali bazothola ukuthi kungcono kakhulu ukukhetha ohlwini lwemikhiqizo ehlinzeka ngobubanzi obuphelele bosayizi nokucushwa okuhlangabezana nezidingo zabo.Amabhulokhi wetheminali yezimboni ngokuvamile kufanele alinganiselwe kufika ku-600 V no-82 A, futhi amukele osayizi bezintambo ukusuka ku-20 AWG ukuya ku-4 AWG.Lapho i-terminal block isetshenziswa kuphaneli yokulawula esohlwini lwe-UL, izovunyelwa yi-UL.
Indawo evalekile evalekile kufanele ivimbe ilangabi ukuze ihlangabezane nezinga le-UL 94 V0 futhi inikeze ukumelana nezinga lokushisa ebangeni elibanzi elingu -40°C kuya ku-120°C (Umfanekiso 4).I-elementi yokuqhuba kufanele yenziwe ngethusi elibomvu (okuqukethwe kwethusi kungu-99.99%) ukuze kube ne-conductivity engcono kakhulu kanye nokukhuphuka okuncane kwezinga lokushisa.

4. Itheminali yokuhlola iphakeme kunezinga lemboni ukuze kuqinisekiswe ukusebenza okuphezulu kanye nekhwalithi ephezulu.
Izinga lemikhiqizo yetheminali iqinisekiswa umphakeli usebenzisa izinsiza zaselabhorethri eziphumelele ukuhlolwa nesitifiketi sofakazi be-UL kanye ne-VDE.Ubuchwepheshe bezintambo kanye nemikhiqizo yokunqanyulwa kufanele ihlolwe ngokuqinile ngokuhambisana namazinga we-UL 1059 kanye ne-IEC 60947-7.Lokhu kuhlola kungase kuhlanganise ukubeka umkhiqizo kuhhavini ku-70°C kuya ku-105°C amahora angu-7 kuya ezinsukwini ezingu-7 kuye ngokuhlolwa, nokuqinisekisa ukuthi ukushisa ngeke kubangele ukuqhekeka, ukuthambisa, ukuwohloka noma ukuncibilika.Akumele kugcinwe ukubonakala komzimba kuphela, kodwa futhi izici zikagesi kufanele zigcinwe.Olunye uchungechunge olubalulekile lokuhlola lusebenzisa izinhlobo ezahlukene kanye nobude besifutho sikasawoti ukuze kutholwe ukumelana nokugqwala kwesikhathi eside kwemikhiqizo.
Abanye abakhiqizi baze badlula izindinganiso zemboni futhi bakha ukuhlolwa kwesimo sezulu esisheshayo ukuze balingise izimo ezinzima futhi baqinisekise impilo ende yomkhiqizo.Bakhetha izinto zokusebenza ezisebenza kahle njengepulasitiki ye-PA66, futhi bathole ulwazi olujulile ezinqubweni zokubumba umjovo ezinembayo ukuze balawule zonke izinto eziguquguqukayo futhi bahlangabezane nezidingo zabasebenzisi bokugcina bemikhiqizo emincane egcina zonke izilinganiso.
Amabhulokhi etheminali kagesi ayingxenye eyisisekelo, kodwa adinga ukunakwa ngoba akha isixhumi esibonakalayo esiyinhloko samathuluzi kagesi nezintambo.Amatheminali ajwayelekile ohlobo lwesikulufa nawo aziwa kahle.Ubuchwepheshe obuthuthukile obufana ne-PID namabhulokhi wetheminali anamazinga amaningi enza ukuklama, ukukhiqiza, kanye nemishini yokusevisa kusheshe futhi kube lula, kuyilapho konga isikhala esikhulu sephaneli yokulawula ebalulekile.