Isimiso se-thermal fuse

I-thermal fuse noma i-thermal cutoff iyisisetshenziswa sokuphepha esivula amasekhethi ngokumelene nokushisa ngokweqile. Ithola ukushisa okudalwe yi-over-current ngenxa ye-short circuit noma ukuhlukaniswa kwengxenye. Amafusi ashisayo awazisetheli kabusha lapho izinga lokushisa lehla njengoba bekungenza i-circuit breaker. I-thermal fuse kufanele ishintshwe lapho ihluleka noma icushiwe.
Ngokungafani nama-fuse kagesi noma ama-circuit breaker, ama-thermal fuse asabela kuphela ekushiseni okweqile, hhayi amandla amanje ngokweqile, ngaphandle uma amandla amanje amaningi anele ukubangela ukuba i-thermal fuse ngokwayo ifudumale ifike ku-trigger.Sizothatha i-thermal fuse njengesibonelo ukwethula i-thermal fuse ngokwayo. umsebenzi oyinhloko, isimiso sokusebenza kanye nendlela yokukhetha ekusebenziseni okungokoqobo.
1. Umsebenzi we-fuse eshisayo
I-fuse eshisayo yakhiwa ikakhulukazi i-fusant, ishubhu encibilikayo nesigcwalisi sangaphandle. Uma isetshenziswa, i-thermal fuse ikwazi ukuzwa ukukhuphuka kwezinga lokushisa okungavamile kwemikhiqizo ye-elekthronikhi, futhi izinga lokushisa lizwakala ngomzimba oyinhloko we-thermal fuse kanye nocingo. Lapho izinga lokushisa lifinyelela endaweni yokuncibilika, i-fusant izoncibilika ngokuzenzakalelayo. Ukuqina kwengaphezulu kwe-fusant encibilikisiwe kuyathuthukiswa ngaphansi kokuthuthukiswa kwezihlungi ezikhethekile, futhi i-fusant iba yindilinga ngemva kokuncibilika, ngaleyo ndlela inqamule isekethe ukugwema umlilo. Qinisekisa ukusebenza okuphephile kwezinto zikagesi ezixhunywe kusekethe.
2. Isimiso sokusebenza se-fuse eshisayo
Njengethuluzi elikhethekile lokuvikela ukushisa ngokweqile, amafuse ashisayo angaphinde ahlukaniswe abe amafuse aphilayo ashisayo kanye namafuse ashisayo engxubevange.
Phakathi kwazo, i-organic thermal fuse yakhiwe ngokuthintana okunyakazayo, i-fusant, kanye ne-spring.Ngaphambi kokuba uhlobo lwe-organic fuse eshisayo lucushwe, kugeleza kwamanje kusuka kumthofu owodwa ngokuthintana okususwayo futhi ngokusebenzisa i-casing yensimbi kuya komunye umthofu. Lapho izinga lokushisa langaphandle lifinyelela izinga lokushisa elibekiwe elibekiwe, i-fusant yento ephilayo izoncibilika, ibangele ukuthi idivayisi yentwasahlobo yokucindezela ikhululeke, futhi ukunwetshwa kwentwasahlobo kuzobangela ukuthintana okugudlukayo kanye nokuholela ohlangothini olulodwa kuhlukane, futhi isekethe isesimweni esivulekile, bese inqamula uxhumano lwamanje phakathi kothintana naye ohambayo kanye nomthofu oseceleni ukuze kuzuzwe inhloso yokuhlanganisa.
Uhlobo lwe-alloy fuse eshisayo luqukethe ucingo, i-fusant, ingxube ekhethekile, igobolondo kanye ne-resin yokuvala. Njengoba izinga lokushisa elizungezile (elizungezile) likhuphuka, ingxube ekhethekile iqala ukuncibilika. Lapho izinga lokushisa elizungezile liqhubeka nokukhuphuka futhi lifinyelela endaweni yokuncibilika kwe-fusant, i-fusant iqala ukuncibilika, futhi indawo engaphezulu yengxubevange encibilikisiwe ikhiqiza ukungezwani ngenxa yokuthuthukiswa kwengxube ekhethekile, kusetshenziswa lokhu kuqina kwe-surface, isici esishisayo esincibilikisiwe i-pilled futhi ihlukaniswe izinhlangothi zombili, ukuze kuzuzwe ukusika kwesifunda unomphela. Ama-fusible alloy thermal fuse ayakwazi ukusetha amazinga okushisa ahlukahlukene okusebenza ngokuya nge-fusant yokwakheka.
3. Indlela yokukhetha i-fuse eshisayo
(1) Izinga lokushisa elilinganiselwe lokusebenza le-fuse eshisayo ekhethiwe kufanele libe ngaphansi kwebanga lokumelana nezinga lokushisa lempahla esetshenziselwa okokusebenza kukagesi.
(2) Isilinganiso samanje se-thermal fuse ekhethiwe kufanele sibe ≥ umthamo omkhulu wamanje osebenzayo wezinto ezivikelwe noma izingxenye/okwamanje ngemva kwesilinganiso sokunciphisa. Ngokucabanga ukuthi ukusebenza kwamanje kwesekethe kungu-1.5A, isilinganiso samanje se-thermal fuse ekhethiwe kufanele sifinyelele ku-1.5/0.72, okungukuthi, ngaphezu kuka-2.0A, ukuze kuqinisekiswe ukwethembeka kokusebenza kwe-thermal fuse fusing.
(3) Umsinga okaliwe we-fusant ye-thermal fusant kufanele ugweme amandla aphezulu ezinto ezisetshenziswayo noma izingxenye ezivikelwe. Kuphela ngokwanelisa lesi simiso sokukhetha kungaqinisekiswa ukuthi i-fuse eshisayo ngeke ibe nokusabela kwe-fusing lapho i-high standard current isenzeka ku-circuit.Ikakhulukazi, uma i-motor ohlelweni lwesifunda olusetshenzisiwe idinga ukuqaliswa njalo noma ukuvikelwa kwe-braking okudingekayo, umthamo wamanje olinganiselwe we-fusant we-thermal fuse ekhethiwe kufanele ukhuliswe ngamazinga angu-1 ~ 2 ngesisekelo sokugwema ukuphakama okuphezulu kwedivayisi evikelekile noma ingxenye.
(4) I-voltage elinganiselwe ye-fusant ye-fuse eshisayo ekhethiwe izoba nkulu kunevoltheji yesekethe yangempela.
(5) Ukwehla kwamandla kagesi wefuse ekhethiwe kufanele kuhambisane nezidingo zobuchwepheshe zesekethe esetshenzisiwe. Lesi simiso singashaywa indiva kumasekhethi kagesi aphezulu, kodwa kumasekhethi kagesi aphansi, umthelela wokwehla kwamandla kagesi ekusebenzeni kwefuse kufanele uhlolwe ngokugcwele. lapho ukhetha amafuse ashisayo ngoba ukwehla kwamandla kagesi kuzothinta ngqo ukusebenza kwesifunda.
(6) Ukuma kwe-fuse eshisayo kufanele kukhethwe ngokuya ngesimo sedivayisi evikelwe. Isibonelo, isisetshenziswa esivikelwe siyinjini, evamise ukuba nokwakheka kwe-annular, i-tubular thermal fuse ivamise ukukhethwa bese ifakwa ngqo esikhaleni sekhoyili ukuze konge isikhala futhi kuzuzwe umphumela omuhle wokuzwa izinga lokushisa. Kwesinye isibonelo, uma idivayisi okufanele ivikelwe i-transformer, futhi ikhoyili yayo iyindiza, kufanele kukhethwe i-square fuse eshisayo, engaqinisekisa ukuthintana okungcono phakathi kwe-thermal fuse kanye nekhoyili, ukuze kuzuzwe umphumela ongcono wokuvikela.
4. Izindlela zokuphepha zokusebenzisa amafuse ashisayo
(1) Kunemithethonqubo ecacile nemikhawulo yamafuse ashisayo ngokuya ngesilinganiso samanje esilinganiselwe, amandla kagesi akaliwe, izinga lokushisa elisebenzayo, izinga lokushisa elihlanganisiwe, izinga lokushisa eliphakeme kanye nezinye izimiso ezihlobene, okudingeka zikhethwe kalula ngaphansi kwesisekelo sokuhlangabezana nezimfuneko ezingenhla.
(2) Kufanele kuqashelwe ngokukhethekile lapho kukhethwa indawo yokufaka i-fuse eshisayo, okungukuthi, ukucindezelwa kwe-fuse eshisayo akufanele kudluliselwe ku-fuse ngenxa yethonya lokushintsha indawo yezingxenye ezibalulekile ku-fuse. umkhiqizo oqediwe noma izici zokudlidliza, ukuze ugweme imiphumela emibi ekusebenzeni kwakho konke.
(3) Ekusebenzeni kwangempela kwe-fuse eshisayo, kuyadingeka ukuyifaka esimweni lapho izinga lokushisa lisengaphansi kokushisa okuphezulu okuvumelekile ngemva kokuba i-fuse iphukile.
(4) Indawo yokufaka i-fuse eshisayo ayikho ensimbini noma kumpahla yokusebenza enomswakama ongaphezu kuka-95.0%.
(5) Mayelana nendawo yokufaka, i-thermal fuse kufanele ifakwe endaweni enomphumela omuhle wokungeniswa.Ngokwesakhiwo sokufakwa, umthelela wezithiyo ezishisayo kufanele ugwenywe ngangokunokwenzeka,Isibonelo, akufanele kube ngokuqondile. ixhunywe futhi ifakwe ne-heater, ukuze ingadlulisi izinga lokushisa locingo olushisayo ku-fuse ngaphansi kwethonya lokushisa.
(6) Uma i-fuse eshisayo ixhunywe ngokuhambisanayo noma ilokhu ithinteka ngokuqhubekayo ngenxa ye-overvoltage kanye nezici ezidlulele, inani elingavamile lamanje langaphakathi lingabangela ukulimala kokuthintana kwangaphakathi futhi libe nomthelela omubi ekusebenzeni okuvamile kwayo yonke idivayisi ye-thermal fuse. Ngakho-ke, ukusetshenziswa kwalolu hlobo lwedivayisi ye-fuse akukhuthazwa ngaphansi kwezimo ezingenhla.
Nakuba i-fuse eshisayo inokwethenjelwa okuphezulu ekwakhiweni, isimo esingavamile ukuthi i-fuse eyodwa eshisayo ingabhekana naso silinganiselwe, khona-ke isifunda asikwazi ukunqanyulwa ngesikhathi lapho umshini ungavamile. amazinga okushisa lapho umshini ushisa ngokweqile, lapho ukusebenza okungalungile kuthinta ngokuqondile umzimba womuntu, lapho kungekho mshini wokusika wesifunda ngaphandle kwe-fuse, nalapho kudingeka izinga eliphezulu lokuphepha.