Mfundo ya fuse yotentha

Fuse yotentha kapena chopukutira chamafuta ndi chipangizo chotetezera chomwe chimatsegula mabwalo kuti asatenthedwe. Imazindikira kutentha komwe kumachitika chifukwa cha kupitilira apo chifukwa chafupikitsa kapena kuwonongeka kwa gawo. Ma fuse otenthetsera sadzikhazikitsanso okha kutentha kutsika monga momwe zimachitira wowononga dera. Fuse yotentha iyenera kusinthidwa ikalephera kapena ikayambika.
Mosiyana ndi ma fuse amagetsi kapena zophulitsa ma circuit, ma fuse amatenthetsa amangochita kutentha kwambiri, osati pakali pano, pokhapokha ngati mphamvu yamagetsi ikukwanira kuchititsa kuti fuseyo itenthetse mpaka kutentha koyambitsa kutentha. ntchito yayikulu, mfundo yogwirira ntchito ndi njira yosankha mukugwiritsa ntchito mwanzeru.
1. Ntchito ya fuse yotentha
Fuse yotentha imapangidwa makamaka ndi fusant, melting chubu ndi filler yakunja. Ikagwiritsidwa ntchito, fuyusi yotenthetsera imatha kuzindikira kukwera kowopsa kwa zinthu zamagetsi, ndipo kutentha kumamveka kudzera m'thupi lalikulu la fuyusi ndi waya. Kutentha kukafika posungunuka, fusant imasungunuka yokha. Kuthamanga kwapamwamba kwa fusant yosungunuka kumakulitsidwa pansi pa kukwezedwa kwazitsulo zapadera, ndipo fusant imakhala yozungulira ikasungunuka, potero kudula dera kuti lisawonongeke. Onetsetsani kuti zida zamagetsi zolumikizidwa ndi dera zikuyenda bwino.
2. Mfundo yogwira ntchito ya fuse yotentha
Monga chipangizo chapadera chotetezera kutenthedwa, ma fuse otentha amatha kugawidwa m'ma fuse otentha a organic ndi aloyi matenthedwe fuse.
Pakati pawo, organic matenthedwe fuse wapangidwa kukhudzana zosunthika, fusant, ndi spring.Pamaso organic mtundu matenthedwe fuse ndi adamulowetsa, panopa umayenda kuchokera kutsogolo kupyola kukhudza zosunthika ndi kudzera zitsulo casing kwa kutsogolo wina. Pamene kutentha kunja kufika preset malire kutentha, ndi fusant wa zinthu organic adzasungunuka, kuchititsa psinjika kasupe chipangizo kukhala lotayirira, ndi kukula kwa kasupe adzachititsa kukhudzana zosunthika ndi mbali imodzi kutsogolera kulekana wina ndi mzake, ndi dera liri lotseguka, kenako ndikudula kulumikizana komweku pakati pa cholumikizira chosunthika ndi chowongolera chakumbali kuti mukwaniritse cholinga chosakanikirana.
Fuse yotentha ya aloyi imakhala ndi waya, fusant, kusakaniza kwapadera, chipolopolo ndi utomoni wosindikiza. Pamene kutentha kozungulira (kozungulira) kumakwera, kusakaniza kwapadera kumayamba kusungunuka. Pamene kutentha kozungulira kumapitirira kukwera ndikufika pa malo osungunuka a fusant, fusant imayamba kusungunuka, ndipo pamwamba pa alloy yosungunuka imapanga kusagwirizana chifukwa cha kulimbikitsa kusakaniza kwapadera, pogwiritsira ntchito kugwedezeka kwapamwamba, chinthu chosungunuka chimasungunuka. kupiritsidwa ndi kupatukana mbali zonse, kuti akwaniritse okhazikika dera kudula. Fusible alloy thermal fuses amatha kuyika kutentha kosiyanasiyana malinga ndi fusant ya kapangidwe kake.
3. Momwe mungasankhire fusesi yotentha
(1) Kutentha kogwira ntchito kwa fuse yosankhidwa yotentha kuyenera kukhala yocheperako kusiyana ndi kutentha kwa zinthu zomwe zimagwiritsidwa ntchito pazida zamagetsi.
(2) Mawonekedwe amakono a fuse yosankhidwa yotentha ayenera kukhala ≥ pakalipano yogwira ntchito ya zida zotetezedwa kapena zigawo / zamakono pambuyo pa kuchepetsa kuchepetsa. Poganiza kuti mphamvu yogwirira ntchito ya dera ndi 1.5A, mphamvu yamagetsi ya fuse yosankhidwa iyenera kufika 1.5 / 0.72, ndiko kuti, kuposa 2.0A, kuti zitsimikizire kudalirika kwa fuse ya fuse yotentha.
(3) Mphamvu yamagetsi ya fusant ya fuse yosankhidwa iyenera kupewa nsonga yapamwamba ya zida zotetezedwa kapena zigawo zikuluzikulu. Pokhapokha pokhutiritsa mfundoyi yosankha yomwe ingatsimikizidwe kuti fuse yotentha sidzakhala ndi fusing reaction pamene nsonga yapamwamba imapezeka mu dera. Makamaka, ngati galimoto yomwe ikugwiritsidwa ntchito iyenera kuyambitsidwa kawirikawiri kapena chitetezo cha braking ndi pakufunika, mphamvu yaposachedwa ya fusant ya fuse yosankhidwa yotenthetsera iyenera kukulitsidwa ndi 1 ~ 2 milingo pamaziko opewera nsonga yaposachedwa ya chipangizocho kapena chigawo chotetezedwa.
(4) Mphamvu ya fusant ya fuse yosankhidwa idzakhala yaikulu kuposa magetsi enieni a dera.
(5) Kutsika kwa voteji kwa fuse yosankhidwayo kumagwirizana ndi zofunikira zaumisiri wa dera lomwe lagwiritsidwa ntchito. Mfundoyi ikhoza kunyalanyazidwa m'mabwalo othamanga kwambiri, koma pamagetsi otsika, mphamvu ya kutsika kwa magetsi pa fuse iyenera kuyesedwa mokwanira. posankha ma fuse otentha chifukwa kutsika kwa voteji kumakhudza mwachindunji ntchito yozungulira.
(6) Mawonekedwe a fuse yotentha ayenera kusankhidwa molingana ndi mawonekedwe a chipangizo chotetezedwa. Mwachitsanzo, chipangizo chotetezedwa ndi injini, yomwe nthawi zambiri imakhala ndi mawonekedwe a annular, fuse yotentha ya tubular nthawi zambiri imasankhidwa ndikulowetsedwa mwachindunji mumpata wa koyilo kuti isunge malo ndikukwaniritsa kutentha kwabwino. chipangizo kutetezedwa ndi thiransifoma, ndi koyilo wake ndi ndege, lalikulu fuseji matenthedwe ayenera kusankhidwa, amene angathe kuonetsetsa kukhudzana bwino pakati pa fuseji matenthedwe ndi koyilo, kuti tikwaniritse bwino chitetezo.
4. Njira zopewera kugwiritsa ntchito ma fuse otentha
(1) Pali malamulo omveka bwino ndi malire a ma fuse otenthetsera malinga ndi momwe ma fuse amatenthedwa, magetsi ovotera, kutentha kwa ntchito, kutentha kwa fusing, kutentha kwakukulu ndi zina zofananira, zomwe ziyenera kusankhidwa mosinthika potengera zomwe zili pamwambapa.
(2) Chisamaliro chapadera chiyenera kuperekedwa pakusankhidwa kwa malo oyika fuseji yotentha, ndiko kuti, kupanikizika kwa fusesi yotentha sikuyenera kusamutsidwa ku fuse chifukwa cha kusintha kwa malo ofunikira mu zinthu zomalizidwa kapena zogwedezeka, kuti mupewe zotsatira zoyipa pakugwira ntchito konse.
(3) Pakugwira ntchito kwenikweni kwa fuse yotentha, ndikofunikira kuyiyika ngati kutentha kumakhalabe kotsika kuposa kutentha kovomerezeka pambuyo poti fuseyo idasweka.
(4) Kuyika kwa fuse yotentha sikuli mu chida kapena zida zokhala ndi chinyezi choposa 95.0%.
(5) Pankhani ya malo oyika, fuse yotenthetsera iyenera kuyikidwa pamalo omwe ali ndi mphamvu yabwino. cholumikizidwa ndikuyika ndi chotenthetsera, kuti musasunthire kutentha kwa waya wotentha kupita ku fuseyo chifukwa cha kutentha.
(6) Ngati fuyusi matenthedwe chikugwirizana ndi kufanana kapena mosalekeza anakhudzidwa ndi overvoltage ndi overcurrent zinthu, ndi matenda kuchuluka kwa mkati panopa kungachititse kuti kukhudzana mkati ndi kusokoneza ntchito yachibadwa ya lonse matenthedwe fuse chipangizo. Choncho, kugwiritsa ntchito chipangizo cha fusesi chamtunduwu sikuvomerezeka pansi pazimenezi.
Ngakhale fuse yotentha imakhala yodalirika kwambiri pamapangidwe, zovuta zomwe fuse imodzi yotentha imatha kupirira ndi yochepa, ndiye kuti dera silingathe kudulidwa panthawi yomwe makinawo ali osadziwika bwino. kutentha pamene makinawo atenthedwa kwambiri, pamene ntchito yolakwika imakhudza mwachindunji thupi la munthu, pamene palibe chipangizo chodulira dera kupatula fusesi, komanso pamene chitetezo chapamwamba chikufunika.