Umgaqo we-thermal fuse

I-thermal fuse okanye i-thermal cutoff sisixhobo sokhuseleko esivula iisekethe ngokuchasene nobushushu obugqithisileyo.Ibona ubushushu obubangelwa yi-over-current ngenxa yesiphaluka esifutshane okanye ukuchithwa kwecandelo.Iifusi ze-Thermal aziziseti ngokutsha xa iqondo lobushushu lihla njenge-breaker circuit.I-fuse ye-thermal kufuneka itshintshwe xa ingaphumeleli okanye iqhutywe.
Ngokungafaniyo neefuse zombane okanye iibreaker zesekethe, iifusi ezishushu zisabela kuphela kubushushu obugqithisileyo, hayi ngokugqithisileyo, ngaphandle kokuba umsinga ogqithisileyo wanele ukwenza ukuba ifuse ye-thermal ngokwayo ifudumale ukuya kutsho kwi-trigger. umsebenzi ophambili, umgaqo wokusebenza kunye nendlela yokhetho kwisicelo esisebenzayo.
1. Umsebenzi we-thermal fuse
I-fuse ye-thermal iqulethwe kakhulu yi-fusant, i-melting tube kunye ne-filler yangaphandle.Xa isetyenziswa, i-thermal fuse inokuva ukunyuka kobushushu obungaqhelekanga kweemveliso zombane, kwaye ubushushu bubonwa ngomzimba ophambili we-thermal fuse kunye nocingo.Xa ubushushu bufikelela kwindawo yokunyibilika, i-fusant iya kunyibilika ngokuzenzekelayo.Ukunyanzeliswa komphezulu we-fusant enyibilikisiweyo kuphuculwe phantsi kokukhuthazwa kwezihluzi ezikhethekileyo, kwaye i-fusant iba yingqukuva emva kokunyibilika, ngaloo ndlela inqunyulwa isiphaluka ukuphepha umlilo.Qinisekisa ukusebenza ngokukhuselekileyo kwezixhobo zombane eziqhagamshelwe kwisekethe.
2. Umgaqo osebenzayo we-thermal fuse
Njengesixhobo esikhethekileyo sokukhusela ukushisa, i-fuses ye-thermal inokwahlulwa kwakhona ibe yi-organic thermal fuses kunye ne-alloy fuses thermal.
Phakathi kwazo, i-organic fuse ye-thermal yenziwe ngoqhagamshelwano oluhambayo, i-fusant, kunye ne-spring.Phambi kokuba uhlobo lwe-organic fuse ye-thermal lusebenze, ukuhamba kwangoku ukusuka kwelinye i-lead ngoqhagamshelwano oluhambayo kunye ne-casing yesinyithi ukuya kwelinye isikhokelo.Xa ubushushu bangaphandle bufikelela kumda wobushushu obumiselweyo, i-fusant yezinto eziphilayo iya kunyibilika, ibangela ukuba isixhobo soxinzelelo lwentwasahlobo sikhululeke, kunye nokwandiswa kwentwasahlobo kuya kubangela unxibelelwano olushukumayo kunye nokukhokelela kwicala elinye ukuba lahlukane, kwaye isekethe ikwimo evulekileyo, emva koko unqumle umdibaniso wangoku phakathi konxibelelwano olushukumayo kunye necala elikhokelela ekufezekiseni injongo yokudibanisa.
I-alloy uhlobo lwe-thermal fuse lubandakanya ucingo, i-fusant, umxube okhethekileyo, igobolondo kunye ne-resin yokutywina.Njengoko iqondo lokushisa elijikelezileyo (elijikelezayo) likhuphuka, umxube okhethekileyo uqala ukucima.Xa ubushushu obujikelezileyo buqhubeka nokunyuka kwaye bufikelela kwindawo yokunyibilika kwe-fusant, i-fusant iqala ukunyibilika, kwaye umphezulu we-alloy enyibilikisiweyo uvelisa uxinzelelo ngenxa yokunyuswa komxube okhethekileyo, kusetyenziswa lo xinzelelo lomphezulu, into enyibilikisiweyo ye-thermal element. ipilisi kwaye yahlulwe kumacala omabini, ukufezekisa ukusika kwesiphaluka esisisigxina.I-fusible alloy thermal fuses iyakwazi ukuseta amaqondo obushushu ahlukeneyo okusebenza ngokwe-fusant yokwakheka.
3. Indlela yokukhetha i-thermal fuse
(1) Iqondo lokushisa elilinganisiweyo le-fuse ye-thermal ekhethiweyo kufuneka libe ngaphantsi komgangatho wokumelana nobushushu bezinto ezisetyenziselwa izixhobo zombane.
(2) Umjelo olinganisiweyo wefuse ye-thermal ekhethiweyo kufuneka ibe ≥ ubuninzi bokusebenza ngoku kwezixhobo ezikhuselweyo okanye amacandelo / okwangoku emva kokunciphisa izinga.Ukucinga ukuba i-current current yesekethe yi-1.5A, i-current rated current ye-thermal fuse ekhethiweyo kufuneka ifikelele kwi-1.5 / 0.72, oko kukuthi, ngaphezu kwe-2.0A, ukuqinisekisa ukuthembeka kokusebenza kwe-thermal fuse fusing.
(3) Umsinga olinganisiweyo we-fusant ye-thermal fusant kufuneka uthintele umsinga ophakamileyo wezixhobo ezikhuselweyo okanye amacandelo.Kuphela ngokwanelisa lo mgaqo wokukhetha unokuqinisekiswa ukuba i-fuse ye-thermal ayiyi kuba ne-fusing reaction xa i-high-price current isenzeka kwi-circuit.Ingakumbi, ukuba i-motor kwinkqubo yesekethe esetyenzisiweyo kufuneka iqalwe rhoqo okanye ukukhuselwa kwe-braking kubangelwa Okufunekayo, umbane olinganisiweyo we-fusant ye-fuse ye-thermal ekhethiweyo kufuneka yonyuswe ngamanqanaba angama-1 ~ 2 ngesiseko sokuphepha umbane ophezulu wesixhobo esikhuselweyo okanye inxalenye.
(4) Ivoltheji ye-fusant ye-fusant ekhethiweyo ye-thermal fuse iya kuba nkulu kunombane wombane wesekethe.
(5) Ukuhla kwamandla ombane kwifuse ye-thermal ekhethiweyo kuya kuhambelana neemfuno zobugcisa zesekethi esetyenziswayo.Lo mgaqo unokungahoywa kwiisekethi zamandla ombane aphezulu, kodwa kwiisekethi zamandla ombane ophantsi, impembelelo yokuhla kwamandla ombane ekusebenzeni kwefuse kufuneka ivavanywe ngokupheleleyo. xa ukhetha i-fuses ye-thermal kuba ukuhla kwamandla ombane kuya kuchaphazela ngokuthe ngqo ukusebenza kwesekethe.
(6) Imilo yefuse ye-thermal kufuneka ikhethwe ngokwemilo yesixhobo esikhuselweyo.Umzekelo, isixhobo esikhuselweyo yinjini, eqhele ukumila ngokweminyaka, i-tubular fuse ye-thermal idla ngokukhethwa kwaye ifakwe ngokuthe ngqo kwisithuba sekhoyili ukuze kugcinwe indawo kwaye kuphunyezwe isiphumo esihle sokubona ubushushu.Ngomnye umzekelo, ukuba isixhobo esimele sikhuselwe yi-transformer, kunye nekhoyili yayo yinqwelomoya, i-square ye-thermal fuse kufuneka ikhethwe, enokuqinisekisa uqhagamshelwano olungcono phakathi kwe-fuse ye-thermal kunye ne-coil, ukuze kufezekiswe umphumo wokukhusela ongcono.
4. Izilumkiso zokusebenzisa i-thermal fuses
(1) Kukho imimiselo ecacileyo kunye nemida yeefusi ze-thermal ngokwemilinganiselo yangoku, amandla ombane alinganisiweyo, ubushushu bokusebenza, ubushushu bokudibanisa, ubushushu obuphezulu kunye nezinye iiparamitha ezinxulumeneyo, ekufuneka zikhethwe ngokuguquguqukayo phantsi kwesiseko sokuhlangabezana nezi mfuno zingasentla.
(2) Ingqwalasela ekhethekileyo kufuneka ihlawulwe ekukhethweni kwendawo yofakelo lwe-fuse ye-thermal, oko kukuthi, uxinzelelo lwe-fuse ye-thermal akufanele ludluliselwe kwi-fuse ngenxa yempembelelo yokutshintsha kwendawo yamacandelo abalulekileyo kwi-fuse. imveliso egqityiweyo okanye izinto zokungcangcazela, ukuze kuthintelwe iziphumo ezibi ekusebenzeni ngokubanzi komsebenzi.
(3) Ekusebenzeni kwangempela kwe-fuse ye-thermal, kuyimfuneko ukuyifaka kwimeko yokuba iqondo lokushisa lisengaphantsi kweqondo lokushisa elivumelekileyo emva kokuba i-fuse iphukile.
(4) Indawo yokufakela i-fuse ye-thermal ayikho kwisixhobo okanye isixhobo esinomswakama ophezulu ngaphezu kwe-95.0%.
(5) Ngokubhekiselele kwindawo yofakelo, i-thermal fuse kufuneka ifakwe kwindawo enefuthe elihle lokungeniswa.Ngokwesakhiwo sofakelo, impembelelo yezithintelo ze-thermal kufuneka ithintelwe kangangoko kunokwenzeka,Umzekelo, ayiyi kuba ngokuthe ngqo. idibaniswe kwaye ifakwe kunye ne-heater, ukwenzela ukuba ungadlulisi ubushushu bocingo olushushu kwi-fuse phantsi kwefuthe lokufudumala.
(6) Ukuba i-fuse ye-thermal idityaniswe ngokuhambelanayo okanye isoloko ichaphazeleka ngokugqithisileyo kunye ne-overcurrent factor, isixa esingaqhelekanga sangaphakathi sangaphakathi sinokubangela umonakalo kuqhagamshelwano lwangaphakathi kunye nokuchaphazela kakubi ukusebenza okuqhelekileyo kwesixhobo sonke se-thermal fuse.Ngoko ke, ukusetyenziswa kolu hlobo lwesixhobo se-fuse akukhuthazwa phantsi kweemeko ezingentla.
Nangona i-fuse ye-thermal inokuthembeka okuphezulu kuyilo, imeko engaqhelekanga ukuba i-fuse enye ye-thermal inokumelana nayo ilinganiselwe, ngoko ke isiphaluka asinakunqunyulwa ngexesha xa umatshini ungaqhelekanga. amaqondo okushisa xa umatshini ushushu, xa umsebenzi ophosakeleyo uchaphazela ngqo umzimba womntu, xa kungekho sixhobo sokusika isiphaluka ngaphandle kwe-fuse, kwaye xa kufuneka ukhuseleko oluphezulu.