Ukwehluleka Kwe-Terminal Block Enomswakama Ophakeme: Amasu Okuvimbela Ukufakwa Kwesimo Sezulu Esishisayo

TL;DR — Uma Unemizuzwana engama-60 Kuphela

• Ukufakwa kukagesi ogwini olushisayo kubhekana namazinga okwehluleka kwe-terminal block angu-15-25% zingakapheli izinyanga ezingu-18 uma kuqhathaniswa nangaphansi kuka-2% ezimweni zezulu ezifudumele — ngoba ukuminyana komswakama kumswakama ongu-80%+ kusheshisa ukugqwala kwe-galvanic ezindaweni zokuxhumana kusuka ku-wire kuya entwasahlobo, kwandisa ukumelana kokuxhumana kuze kube yilapho ukukhiqizwa kokushisa kubangela ukuphazamiseka kwesekethe. Ama-terminal block avaliwe anesilinganiso se-IP67 anamabhuzu okuvala e-silicone ayimpoqo ekufakweni kwangaphandle kwe-tropical.
• Imiklamo yesiteshi se-spring clamp idala iziteshi zomswakama we-capillary endaweni yokungena ngentambo — Ngicacisa amasiteshi e-screw clamp anezixhumanisi zokucindezela ezivaliwe zezinhlelo zokusebenza zangaphandle zasezindaweni ezishisayo lapho ukungena komswakama kuyindlela eyinhloko yokwehluleka.
• Ukufakwa kwekhebula elivalekile kusetshenziswa amabhuzu okuvala e-silicone noma ipayipi lokunamathisela elincishisiwe lokushisa endaweni yokungena ye-terminal block kususa indlela yokuqala yokungena komswakama ebangela ukugqwala kokuxhumana kwe-wire-to-terminal.

Engikufundile Ngokuhluleka Kukagesi Emadolobheni Ashisayo Ngemva Kweminyaka Engamashumi Amabili Yokunikezwa Kwe-Terminal Block

Ngesikhathi ngiqala ukuhlinzeka ngezingxenye zokuxhumanisa ugesi kosonkontileka kagesi eNingizimu-mpumalanga ye-Asia ngo-2006, isikhalazo esiphindaphindayo engangisizwa njalo kwakumayelana nokwehluleka kwe-terminal block ekufakweni kosogwini olushisayo. Osonkontileka bakagesi babezoqeda ukufakwa okusha, uhlelo lwaluzosebenza kahle ezinyangeni ezimbalwa zokuqala, bese kuthi izifunda ngazinye ziqale ukwehluleka - ekuqaleni ngezikhathi ezithile, bese kancane kancane kuze kube yilapho isifunda sehluleka ngokuphelele. Ngenxa yokuthi ukwehluleka kwakusatshalaliswa kuzo zonke izifunda eziningi ekufakweni okukodwa kunokuba kugxilwe endaweni eyodwa, iphethini yakhomba esicini semvelo kunenkinga yokusebenza kokufakwa. Lapho ngihlola ama-terminal block ahlulekile abuya ekufakweni kosogwini olushisayo, indlela yokwehluleka yayingaphazami: ukugqwala kwe-galvanic esibonakalayo se-wire-to-contact, okubangelwa ukungena komswakama endlini ye-terminal block.

Ngenxa yokuthi izindawo ezisogwini ezishisayo zinamazinga omswakama ajwayelekile adlula u-80%, futhi ngenxa yokuthi umjikelezo wokushisa wansuku zonke ezindaweni ezishisayo ezisogwini ubangela ukwakheka komswakama ezindaweni ezipholile ekuseni kakhulu ngaphambi kokuba ilanga lishise umoya, izindawo zikagesi kanye nokuqukethwe kwazo - kufaka phakathi amabhlogo okugcina - zithola umjikelezo wokuvezwa komswakama nsuku zonke. Ngenxa yokuthi indlu yebhloko yokugcina - ngisho noma ilinganiswe ngezinga elithile lokuvikelwa kokungena - ivumela inani elincane lomhwamuko womswakama ukuthi ungene ngokuhamba kwesikhathi ngokusebenzisa imiphumela yokusabalala kanye nokuphefumula okubangelwa ukujikeleza kokushisa, umswakama oqongelelekile ngaphakathi kwebhloko yokugcina udala izimo zokugqwala kwe-galvanic ezindaweni zokuxhumana zikagesi.

Ngenxa yokuthi manje sengisekele ukucaciswa kwebhulokhi yokugcina kwamaphrojekthi okufakwa kukagesi wesimo sezulu esishisayo angaphezu kwama-60 kulo lonke elaseNingizimu-mpumalanga ye-Asia, eMpumalanga Ephakathi, naseLatin America, indlela yokuhluleka kwebhulokhi yokugcina ebangelwa umswakama iyimbangela evame kakhulu engihlangana nayo - kanye nokulungiswa okuvame kakhulu. Ngenxa yokuthi ukucaciswa okulungile (ibhulokhi yokugcina evaliwe ye-IP67 enokuvalwa kwentambo efanele) kanye nomkhuba wokufaka okulungile (ukungena kwekhebula elivaliwe, ukudonsa amanzi okuvala okulungile) ndawonye kususa indlela yokungena komswakama, inkinga yokucaciswa kokufakwa kwezindawo ezishisayo ingaxazululeka - kodwa kuphela uma ukucaciswa kanye nomkhuba wokufaka kulungisa imbangela eyinhloko kunokwelapha nje uphawu ngokufaka amabhulokhi esiteshi ahlulekile ngamayunithi afanayo angavaliwe.

I-Electrochemistry Yokugqwala Kwe-Terminal Block Okubangelwa Umswakama

Ukugqwala kwe-galvanic okubangela ukwehluleka kwe-terminal block ezindaweni ezishisayo kuqhutshwa ukusebenzisana kwe-electrochemical phakathi kwezinsimbi ezingafani lapho kukhona i-electrolyte — kulokhu, ifilimu encane yamanzi ehlangana ebusweni bangaphakathi be-terminal block housing. Ngenxa yokuthi indawo yokuxhumana ye-terminal block iqukethe umqhubi wensimbi yethusi noma yethusi kanye ne-steel spring noma screw mechanism, izinsimbi ezimbili ezingafani lapho kukhona umswakama zakha i-galvanic corrosion cell ebangela ukuthi insimbi esabela kakhulu (insimbi evame ukufakwa i-zinc-plated) igqwale ngokukhethekile endaweni yokuxhumana.

Umkhiqizo wokugqwala owakheka esixhumi se-wire-to-contact ngokuvamile yi-zinc oxide noma i-zinc hydroxide yokuxhumana kwensimbi okufakwe i-zinc, kanye ne-copper oxide noma i-copper chloride yokuxhumana kwentambo yethusi. Ngenxa yokuthi le mikhiqizo yokugqwala ayiziqhubi zikagesi ezingalungile futhi ayiqhubi, ukuqongelela kwayo esixhumi se-contact kwandisa kancane kancane ukumelana kokuxhumana. Ngenxa yokuthi ukumelana kokuxhumana okwandisiwe kukhiqiza ukushisa ngokuya ngobudlelwano be-Power = Current² × Resistance, ukushisa endaweni yokuxhumana kusheshisa izinga lokugqwala ngenkathi ngesikhathi esifanayo kunciphisa umqhubi wentambo kanye ne-terminal spring noma screw mechanism.

Umkhawulo obalulekile wokumelana nokuxhumana kokushisa — lapho ukushisa okukhiqizwa endaweni yokuxhumana kudlula amandla okushisa okushisa kwebhulokhi yokugcina — ngokuvamile kuphakathi kwama-milliohm ayi-100-500 emazingeni amanje avamile ekwakheni amasekethe kagesi (ama-amps ayi-10-32). Ngenxa yokuthi ngilinganise ukumelana nokuxhumana kwama-milliohm angama-50-200 kumabhulokhi okugcina asesebenze izinyanga eziyi-12-18 ezindaweni ezishisayo zasogwini, ukwanda okuqhubekayo kokumelana nokuxhumana okuvela ekugqwaleni kusho ukuthi amabhulokhi okugcina kulezi zindawo ahlala esondela kumkhawulo wokushisa okushisa — futhi noma yisiphi isici esengeziwe esikhuphula kancane amandla omthwalo noma ehlisa kancane ukushabalaliswa kokushisa (njengokwanda kwezinga lokushisa ngesikhathi sezulu esishisayo) kungabangela isehlakalo sokwehluleka kokushisa.

Incazelo Yesilinganiso Sokuvikelwa Kokungena (IP) samaBlocki Esiteshini Sezitimela SaseTropical

Uhlelo lokulinganisa i-Ingress Protection (IP), oluchazwe ku-IEC 60529, luchaza izinga lokuvikelwa olunikezwa yizimbobo zikagesi ngokumelene nokungena kwezinto eziqinile kanye nomswakama. Ngenxa yokuthi isilinganiso se-IP sinquma ukumelana kwe-terminal block ekungeneni komswakama ngaphansi kwezimo ezithile zokuhlola, ukukhethwa kwesilinganiso se-IP esifanele sezindawo ezishisayo kudinga ukufanisa isilinganiso nezimo ezithile zokufaka esikhundleni sokusebenzisa incazelo ejwayelekile yezindawo ezishisayo.

Ngokufakwa kukagesi kwangaphandle kwezindawo ezishisayo lapho amabhlogo okugcina evezwa ngqo emvuleni, umswakama opheshulwa ngumoya, kanye nokucwiliswa okwesikhashana emanzini (njengasemifuleni yemisele egcwala ngesikhathi semvula enkulu), ngicacisa amabhlogo okugcina anesilinganiso esincane se-IP67. Ngenxa yokuthi i-IP67 icacisa ukuvikelwa ekungeneni kothuli (okungena uthuli) kanye nokuvikelwa emiphumeleni yokucwiliswa emanzini kwesikhashana (kufika kumitha eli-1 lamanzi imizuzu engama-30), lesi silinganiso sihlanganisa izimo zokuchayeka komswakama okweqile ezenzeka ezindaweni ezishisayo zangaphandle. Ngenxa yokuthi amabhlogo okugcina alinganiselwe yi-IP67 asebenzisa ama-gasket okuvala i-silicone kanye nemiklamo yezindlu ezivaliwe ukuze afinyelele isilinganiso, abiza cishe izikhathi eziphindwe kabili kuya kwezi-3 kunemabhlogo okugcina ajwayelekile e-IP20 - kodwa iprimiyamu yezindleko ivunyelwe ngokuqedwa kokwehluleka kokugqwala okubangelwa umswakama.

Ngokufakwa kukagesi kwezindawo ezishisayo ezimboziwe kodwa ezingavalwanga — njengezindawo ezingaphandle ezihlinzeka ngomthunzi kanye nokuvikelwa kwemvula kodwa ezingavalwanga ekushiseni okuqhutshwa ngumoya noma ekushiseni — ngicacisa isilinganiso esincane se-IP65. Ngenxa yokuthi i-IP65 icacisa ukuvikelwa okungenathuli kanye nokuvikelwa ekufakweni kwamanzi kusuka kunoma iyiphi indlela, imboza ukuvezwa komswakama emvuleni evunguzwa ngumoya kanye nokushiswa okwenzeka ezindaweni ezimboziwe kodwa ezingavalwanga. Ngenxa yokuthi isilinganiso se-IP65 singatholakala ngemiklamo yokuvala engabizi kakhulu kune-IP67, incazelo ye-IP65 ingabizi kakhulu ekufakweni lapho ukucwiliswa kwesikhashana kungeyona indawo yokuchayeka engokoqobo.

Umklamo Wesiphetho Sesigxobo Sentwasahlobo vs Isikulufa Sesigxobo Sezimo Ezishisayo

Umklamo we-terminal clamp yesipilingi — osebenzisa indlela yesipilingi ukugcina ingcindezi yokuxhumana entanjeni efakiwe — usube umklamo we-terminal block ovelele ekufakweni kukagesi kwesimanje ngenxa yesivinini sokuxhuma kwayo (akudingeki ukulungiswa kwesikulufi) kanye nokugcinwa kwayo kwentambo okungenakulungiswa. Kodwa-ke, ekufakweni kwangaphandle kwezindawo ezishisayo lapho ukungena komswakama kuyindlela eyinhloko yokwehluleka, umklamo we-spring clamp unobuthakathaka obuyisisekelo: indlela yesipilingi idala igebe endaweni yokungena yentambo evumela umswakama ukuthi ungene emzimbeni we-terminal ngesenzo se-capillary eceleni komqhubi wentambo.

Isiteshi somswakama we-capillary kuma-terminal clamp entwasahlobo senzeka ngoba ukufakelwa kwentambo okungena ku-terminal block akuvaliwe ngomshini endaweni lapho kuphuma khona i-home. Ngenxa yokuthi indlela yentwasahlobo idinga igebe ukuze intambo ifakwe futhi igcinwe, futhi ngenxa yokuthi amandla entwasahlobo agcina intambo ixhumana negebe lokungena, umswakama ofinyelela ebusweni bentambo yangaphandle ungadonselwa endlini ye-terminal ngesenzo se-capillary eceleni kwe-interface phakathi kokufakelwa kwentambo kanye nendlela yentwasahlobo. Ngenxa yokuthi le ndlela yokungena komswakama iyingxenye yomklamo we-spring clamp futhi ayikwazi ukususwa ngokuphelele ngaphandle kokubeka engcupheni umsebenzi wentwasahlobo, angincomi ama-terminal clamp entwasahlobo okufakwa ngaphandle kwe-tropical lapho ukungena komswakama kuyinselele enkulu yemvelo.

Umklamo we-terminal clamp yesikulufu — osebenzisa isikulufu ukufaka ingcindezi yokubopha ngqo kumqhubi wentambo — unikeza ukulungiselelwa kokuvala umswakama okuphezulu endaweni yokungena yentambo uma i-torque kahle. Ngenxa yokuthi i-screw clamp isebenzisa ingcindezi ngqo kumqhubi wentambo (ngemuva kokususa i-insulation), futhi ngenxa yokuthi uxhumano lokucindezela phakathi kwentambo nekhanda lesikulufu ludala i-joint engangenisi igesi uma i-torque kahle, uxhumano lwe-screw clamp aludali isiteshi se-capillary endaweni yokungena yentambo. Ngenxa yokuthi i-terminal clamp yesikulufu ivumela nokuqinisekiswa okubonakalayo kokujula kokufakwa kwentambo kanye nekhwalithi yokuxhumeka, inikeza isiqinisekiso esengeziwe sekhwalithi yokufaka esiwusizo ezindaweni ezishisayo lapho ukufinyelela kokulungisa kunzima khona.

Imininingwane Yokuvala Ikhebula Yokufakwa Kwebhulokhi Yesiphetho Sangaphandle SeTropical

Ukucaciswa kokuvalwa kwekhebula kuyindlela ebalulekile yokufaka enquma ukuthi i-terminal block elinganiswe yi-IP ifinyelela yini ekuvikelweni kwayo komswakama okulinganiswe ezindaweni zangaphandle ezishisayo. Ngoba ikhebula elingena ku-terminal block linikeza indlela yokungena komswakama uma i-cable seal ingaphelele - ikakhulukazi ekushintsheni kusuka ku-cable jacket yangaphandle (evame ukuba sesimweni esiphelele futhi esingenawo umswakama) kuya ku-track ehlutshiwe ngaphakathi kwe-terminal - indawo yokungena yekhebula kumele ivalwe kusetshenziswa izindlela ezisusa umswakama we-capillary endleleni kulokhu kuguqulwa.

Indlela yebhuthi yokufaka i-silicone sealing iyindlela ethembeke kakhulu yokufaka ikhebula le-terminal yangaphandle e-tropical. Ngenxa yokuthi ibhuthi le-silicone linikeza isembozo esiguquguqukayo, esinamathelayo phezu kokushintshana phakathi kwejakhethi yekhebula kanye nendlu yebhulokhi yokugcina, ligcwalisa noma yiziphi izikhala endaweni yokungena futhi ligcina ukusebenza kwalo kokuvala kuzo zonke izimo zokushisa kanye nokuchayeka kwe-UV ezitholakala ezindaweni zangaphandle ezishisayo. Ngenxa yokuthi i-silicone igcina ukuguquguquka kwayo kanye nokunamathela kwayo ebangeni lokushisa elisukela ku--60C kuya ku-+200C, ayiqini noma iqhekeke ngesikhathi sokujikeleza kokushisa okwenzeka ezindaweni zangaphandle ezishisayo.

Indlela yokumboza ngokushisa enamathelayo inikeza indlela ehlukile yokuvala efaneleke kakhulu kumabhulokhi esiphetho anezingqimba zekhebula eziyindilinga. Ngenxa yokuthi ipayipi lokumboza ngokushisa liyancipha lizungeze ikhebula futhi ulwelwesi olunamathelayo lugeleza ukuze lugcwalise noma yiziphi izikhala endaweni yokuxhumana yekhebula, idala ushintsho oluvalwe ngomswakama oluqinile ngomshini futhi oluvikela ngogesi. Ngenxa yokuthi indlela yokumboza ngokushisa idinga umthombo wokushisa (isibhamu somoya oshisayo noma ithoshi) ngesikhathi sokufakwa futhi ayibukeki kalula njengendlela yokumboza nge-silicone, ngithanda indlela yokumboza nge-silicone yezinhlelo zokusebenza zangaphandle zasezindaweni ezishisayo lapho ukuqinisekiswa kwekhwalithi yokufaka kunzima khona.

imibuzo ejwayelekile ukubuzwa

Kungani amabhlogo ajwayelekile e-terminal ehluleka ngaphambi kwesikhathi ekufakweni kukagesi kwesimo sezulu esishisayo?
Ukufakwa kogu lolwandle olushisayo kuhlangabezana namazinga okwehluleka kwe-terminal block angu-15-25% zingakapheli izinyanga ezingu-18 (uma kuqhathaniswa ne-

Yisiphi isichasiselo sesilinganiso se-IP esisebenza kumabhulokhi e-terminal okufakwa kukagesi wangaphandle ezindaweni ezishisayo?
Ukufakwa kwangaphandle kwezindawo ezishisayo kudinga okungenani i-IP67 (ukungena kothuli, ukucwiliswa emanzini okwesikhashana) kanye okungenani i-IP65 (ukungena kothuli, ukufuthwa kwamanzi kusuka kunoma iyiphi indlela) kokufakwa okumboziwe kodwa okungavaliwe. Izilinganiso ze-IP ezingaphansi kwe-IP65 zivumela ukungena komswakama okubangela ukwehluleka kokugqwala zingakapheli izinyanga ezingu-12-24.

Umklamo we-spring clamp vs screw terminal uthinta kanjani ukumelana nomswakama ezindaweni ezishisayo?
Ama-terminal clamp entwasahlobo adala iziteshi zomswakama we-capillary endaweni yokungena ngocingo engenakuqedwa ngokuphelele. Ama-terminal clamp e-screw anezixhumanisi zokucindezela ezivaliwe asusa le ndlela. Cacisa ama-terminal clamp e-screw ezinhlelo zokusebenza zangaphandle zasezindaweni ezishisayo lapho ukungena komswakama kuyindlela eyinhloko yokwehluleka.

Yikuphi ukulungiswa kwentambo kanye nencazelo yokuvala okusebenza kuzintambo ze-terminal block zangaphandle zase-tropical?
Ukungena ngekhebula elivalekile kusetshenziswa amabhuzu okuvala e-silicone noma ipayipi lokunamathela elinokushisa elincishisiwe endaweni yokungena ngentambo ye-terminal block kususa umswakama we-capillary pathway. Ukuguquka kusuka ejazini lekhebula elivalekile kuya ku-stripped conductor ngaphakathi kwe-terminal kuyiphuzu eliyinhloko lokungena komswakama uma ukuvala kungaphelele.

I-Ningbo J-Guang Electronics iyisekela kanjani imininingwane yebhulokhi yokufaka yesiteshi sase-tropical?
I-J-Guang inikeza amabhlogo esitimela se-DIN esilinganiselwe yi-IP65-IP67 anokuhambisana kwebhuthi lokuvala i-silicone lokufakwa kukagesi kwangaphandle nasogwini. Ukubonisana okuqondene nesicelo kuyatholakala ekukhetheni amabhlogo esitimela, izindlela zokuvala ucingo, kanye nomkhuba wokufaka izinhlelo zikagesi zasendaweni yasezindaweni zase ...

Izixhumanisi zangaphakathi: I-J-Guang PCT-211 DIN Rail Push-in Wire Terminal Block | Ikhathalogi Yomkhiqizo We-J-Guang Electronics

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Mayelana noMlobi

I-Ningbo J-Guang Electronics Co., Ltd. ingumkhiqizi ochwepheshe wezingxenye zokuxhuma kagesi okuhlanganisa amabhlogo wesitimela se-DIN, ama-terminal e-PCB, kanye nezixhumi zikagesi zokufakwa kukagesi kwezimboni nezentengiselwano. Njengoba inolwazi oluningi lokuhlinzeka ngezingxenye zikagesi ekufakweni kwesimo sezulu esishisayo kulo lonke elaseNingizimu-mpumalanga ye-Asia, eMpumalanga Ephakathi, naseLatin America, i-J-Guang Electronics isekela osonkontileka bakagesi kanye nabathengi bezimboni ngokukhetha amabhlogo wesiteshi akhethekile okusetshenziswayo ukuze kube nomswakama ophezulu kanye nezindawo zikagesi zangaphandle.