Iindaba

Njengenxalenye yoxhulumaniso oluqhelekileyo kuzo zonke iinjineli, iibhloko ze-terminal zisetyenzisiwe iminyaka emininzi ukubonelela nge-wiring esisigxina ekhuselekileyo kwiinkqubo ezahlukeneyo.Ibhloko yetheminali, ekwaziwa ngokuba yi-terminal block, i-terminal connector, okanye i-threaded terminal, inezindlu ezinemodyuli kunye nesigqubuthelo esidibanisa iingcingo ezimbini okanye ngaphezulu kunye.Ngenxa yokuba uxhulumaniso luyi-semi-permanent, ibhloko ye-terminal inceda ukwenza lula ukuhlolwa kwentsimi kunye nenkqubo yokulungisa.Nangona liyingxenye elula, kodwa ngaphambi kokukhethwa kwebhloko ye-terminal kunye neenkcukacha zayo zinokuqonda okusisiseko okanye okulungileyo.

Le ngxoxo iya kugubungela iintlobo zebhloko ye-terminal eqhelekileyo, ingqwalasela engundoqo yombane kunye noomatshini, kwaye inike iinkcukacha ezithe vetshe ukunceda iinjineli ekukhetheni.

Ubumbeko oluqhelekileyo

Uhlobo lwe-PCB lokunyuka, uhlobo locingo kunye nodidi oluthe tye zezona ntlobo zintathu zebhloko ezixhaphakileyo kuyilo.Le theyibhile ilandelayo idwelisa iindidi ezintathu ezahlukeneyo kunye nengqiqo yazo, ufakelo kunye noqwalaselo.

Iimpawu ezibalulekileyo zoMbane

Kukho inani leenkcazo zombane eziphambili ekufuneka ziqwalaselwe ngexesha lesigaba soyilo, ukugubungela iindidi zeebhloko ze-terminal eziqhelekileyo.Ngokukodwa ziquka:

Ikalwe ngoku.Ngokubanzi, iinkcukacha ezifuna ingqwalasela enkulu kuyilo lwebhokisi yesiphambano luyilo lwangoku.Oku kusekelwe kwimiba emithathu: ukuqhutyelwa kombane wee-terminals, indawo enqamlezayo kunye nokunyuka kweqondo lokushisa elihambelanayo.Xa ukhetha iibhloko ze-terminal, kucetyiswa ukuba i-current rated current ibe ubuncinane i-150% yobuninzi obulindelekileyo okwangoku benkqubo.Ukuba i-current rated current ye-terminal block ayichanekanga kwaye i-current current iphezulu kakhulu, ibhloko ye-terminal inokugqithisa kwaye yonakaliswe, okukhokelela kwiingxaki ezinzulu zokhuseleko.
Umbane olinganisiweyo: Inxalenye yamandla ombane olinganisiweyo webhloko ye-terminal ichatshazelwa sisithuba kunye namandla e-dielectric yendlu yayo.Ngendlela efanayo ukuba i-current rated ikhethiweyo, i-voltage elinganisiweyo yebhloko ye-terminal kufuneka ibe nkulu kunomthamo omkhulu wenkqubo, ngokuqwalasela nayiphi na i-voltage surges engonakalisa uxhumano.
Inani leepali: Inani leepali yindlela eqhelekileyo yokubonisa inani leesekethe ezizimeleyo eziqulethwe kwibhloko ye-terminal.Le nkcazo ngokubanzi iyahluka ukusuka kwi-unipolar ukuya kuma-24.
Isithuba: Isithuba sichazwa njengomgama osembindini phakathi kweepali ezimeleneyo, omiselwa lireyithingi iyonke yebhloko ye-terminal kwaye ibandakanya izinto ezinjengomgama ohambayo, amandla ombane/okhoyo kunye nococeko.Eminye imizekelo eqhelekileyo yezithuba ibandakanya i-2.54mm, 3.81mm, 5.0mm, njl.
Ubungakanani bocingo / Uhlobo: ENyakatho Melika, ucingo olwamkelekileyo kwiibhloko ze-terminal lukwi-American Wire gauge (AWG), echaza ubungakanani bocingo okanye igeyiji eyamkelekileyo kwimodyuli ukuqinisekisa ukuba ucingo lungena ngokwasemzimbeni kwindlu.Ngethamsanqa, iibhloko ezininzi ze-terminal zinokunyamezelana ezinokuthatha uluhlu lweesayizi zocingo ezifana ne-18 ukuya kwi-4 okanye i-24 ukuya kwi-12AWG.Ukongeza kwi-wire gauge, qwalasela uhlobo locingo ngokuxhomekeke kuhlobo lwemodyuli ekhethiweyo.Iingcingo ezijijekileyo okanye ezingundoqo zilungele iitheminali ezinemisonto, ngelixa iingcingo ezinondoqo omnye zihlala zidityaniswa neebhloko zokutyhala ngaphakathi.
Iimpawu ezibalulekileyo zoomatshini

Okulandelayo kuza ukucaciswa koomatshini, okuhambelana nobukhulu bebhloko ye-terminal, i-orientation, kunye nokulula ukuphatha uxhulumaniso kuyilo.Imiba ebalulekileyo yoomatshini ibandakanya:

Umkhomba-ndlela wocingo: Ukuthe tye (90°), ngokuthe nkqo (180°) kunye ne-45° zezona ndlela zintathu zixhaphakileyo kwibhloko ye-terminal.Olu khetho luxhomekeke kwi-layout yoyilo kunye neyiphi isalathiso esifanelekileyo kwaye ilungele i-wiring.
Umzobo 1: Ukuqhelaniswa nebhloko yetheminali eqhelekileyo (Umthombo womfanekiso: Izixhobo zeCUI)

Ukulungiswa kocingo: Ngokufana ne-orientation, kukho iindlela ezintathu eziqhelekileyo zokulungisa ucingo kwiibhloko ze-terminal: i-threaded terminals, i-push-buttons, okanye i-push-in.Zontathu ezi ndidi zilifanele ngokufanelekileyo igama.Itheminali enemisonto okanye ibhloko yetheminali yohlobo lwe-screw iqulethe isikrufu esithi, xa siqinisiwe, sivale i-clamp ukukhusela i-conductor kwi-conductor.Umsebenzi weqhosha ulula kakhulu, cofa nje iqhosha, vula ikliphu ukuvumela ucingo ukuba lufake, khulula iqhosha kwaye uvale ikliphu ukuze ubambe ucingo.Kwiibhloko ze-push-in terminal, ucingo lunokufakwa ngokuthe ngqo kwindlu kwaye uxhumano lunokusekwa ngaphandle kwe-screw okanye iqhosha lokuvula i-clamp.
Umzobo 2: Indlela eqhelekileyo yokulungisa ucingo (Umthombo womfanekiso: Izixhobo zeCUI)

Uhlobo lwe-Interlock kunye nohlobo olulodwa: ibhloko ye-terminal ingaba luhlobo lwe-interlock okanye uhlobo olulodwa lwezindlu.Iibhloko ze-terminal ezidibeneyo zivame ukufumaneka kwii-2 - okanye ii-3-pole versions, ezivumela iinjineli ukuba zifezekise ngokukhawuleza amanani ahlukeneyo ezibonda okanye zidibanise imibala eyahlukeneyo yohlobo olufanayo lwemodyuli kunye.Ibhloko ye-terminal ye-Monomer ngokungathandabuzekiyo zonke izibonda ziqulethwe kwimodyuli, ngokweemfuno zoyilo, ukuze ibe nobungqongqo obuphezulu kunye nokuqina.
Umzobo 3: Ukudibanisa ngokuchasene neebhloko ze-terminal ye-monomer (Umthombo: Izixhobo ze-CUI)

I-Wire-to-shell: Iplagi - kwiibhloko ze-terminal zikhethwa ngokufanelekileyo ukudibanisa rhoqo kunye nokuqhawulwa koqhagamshelwano oluphambili.Ezi zenziwa ngokufaka ucingo kwiplagi eyimodyuli emva koko uqhagamshela iplagi kwisokethi esisigxina kwi-PCB, ikwenza kube lula ukuqhawula ngaphandle kokujongana neengcingo zomntu ngamnye.
Umzobo 4: Iplagi kunye noqhagamshelo lwesokhethi yeplagi kunye nebhloko ye-terminal yeplagi (Umthombo womfanekiso: Izixhobo zeCUI)

Amanqanaba okhuseleko kunye nezinye izinto eziqwalaselwayo

I-UL kunye ne-IEC ngawona maqumrhu okhuseleko aphambili ekuqinisekiseni iibhloko zetheminali.Imigangatho yokhuseleko ye-UL kunye/okanye ye-IEC idla ngokudweliswa kwiinkcukacha zebhloko ye-terminal, kwaye amaxabiso eparameter ahlala ehluka.Oku kungenxa yokuba isixhobo ngasinye sisebenzisa imigangatho yovavanyo eyahlukeneyo, ngoko ke iinjineli kufuneka ziqonde iimfuno zokhuseleko lwenkqubo yazo iyonke ukukhetha iibhloko zetheminali ezifanelekileyo.

Ngelixa ezinye izinto zinokuba yingcinga engemva kuyilo oluninzi, iyahlawula ukufaka umbala ngokwentando yendlu okanye amaqhosha ebhloko yeterminal.Ngokukhetha imibala ekhethekileyo yeebhloko ze-terminal, iinjineli zinokudibanisa ngokulula amanqaku kwiinkqubo ezintsonkothileyo ngaphandle kokungazidibanisi.

Okokugqibela, kwiindawo ezingqongileyo okanye usetyenziso olujongene namaqondo obushushu agqithisileyo, iibhloko zetheminali ezinamabakala aphezulu obushushu nazo zinokukhethwa.