Okufanele ukwenze uma i-high-frequency imishini yokushisa yokufakelwa ine-overcurrent

Okokuqala, kwenze kucace ukuthi umqondo womklamo womshini wokushisa we-Tongcheng we-high-frequency, njengoba uhlelo lwe-alamu lwakhiwe, kufanele lube nencazelo kanye nenani lalo. Isiqalo esiyisisekelo salesi sexwayiso ukuthi,

I. Kubonisa ukuthi kube nokuhluleka, sicela umise umshini ngokushesha ongakhona ngakho ukuze uxazulule inkinga.

B. Khomba iphuzu lephutha, ungakwazi ukunquma ngokushesha indawo yephutha, futhi unikeze usizo lokunakekelwa. Ngakho-ke, uma kuvela i-alamu, sicela umise umshini ukuze uhlolwe futhi uxazulule kusenesikhathi ukugwema ukulahlekelwa okukhulu.

Izimbangela ze-overcurrent:

Ikhoyili ye-induction eyenziwe ngokwayo inomumo nosayizi ongalungile, ibanga phakathi kwe-workpiece ne-induction coil lincane kakhulu, kukhona isifunda esifushane phakathi kwe-workpiece ne-induction coil noma ikhoyili yokungeniswa ngokwayo, futhi ikhoyili yokungeniswa elungiselelwe iyathinteka. ngensimbi yekhasimende ngesikhathi sokusetshenziswa noma iseduze nayo. Ithonya lezinto zensimbi, njll.

Indlela:

1. Yenza kabusha ikhoyili yokungeniswa, igebe lokuhlanganisa phakathi kwekhoyili yokungeniswa nengxenye yokushisisa kufanele libe ngu-1-3mm (lapho indawo yokushisisa incane)

Kutuswa ukusebenzisa ishubhu yethusi eyindilinga noma ishubhu yethusi yesikwele enogqinsi lwe-1-1.5mm nangaphezulu kuka-φ5 ​​ukusonga ikhoyili yokungeniswa.

2. Rarulula isifunda esifushane kanye nokuvutha kwekhoyili yokungeniswa

3. Uma izinto ezikwazi ukungena kahle kazibuthe njengethusi ne-aluminium zishisisa ngendlela eguquguqukayo, inani lamakhoyili okungenisa kufanele linyuswe.

4. Izinto ezisetshenziswayo kufanele zigweme ukukhanya kwelanga, imvula, umswakama, njll.

Hlola ukuthi amandla okushisa afana nesivikeli. Uma ukufanisa kulungile, hlola ukuthi ukusebenza kulungile, ikakhulukazi isikhathi sokushisa.

5. Shintshela ekushintsheni kokuvikela okukhulu, inqobo nje uma isistimu yokushisa ijwayelekile

C. I-overcurrent yokuqalisa: Izizathu ngokuvamile yilezi:

1. Ukuhlukaniswa kwe-IGBT

2. Ukwehluleka kwebhodi lomshayeli

3. Ibangelwa ukulinganisa izindandatho ezincane kazibuthe

4. Ibhodi lesifunda limanzi

5. Ukunikezwa kwamandla kwebhodi lokushayela akujwayelekile

6. Isifunda esifushane senzwa

Indlela:

1. Faka esikhundleni ibhodi lomshayeli kanye ne-IGBT, khipha indandatho kazibuthe encane ekuholeni, hlola umzila wamanzi, ukuthi ibhokisi lamanzi livimbelwe yini, vuthela ibhodi elisetshenziswa ngesomisi sezinwele, futhi ulinganise i-voltage.

2. I-Overcurrent ngemva kokusebenzisa isikhathi esithile ngemva kokuqalisa: isizathu ngokuvamile ukungashisi kahle komshayeli. Indlela yokwelapha: phinda usebenzise amafutha abicah; hlola ukuthi umgwaqo wamanzi uvaliwe yini.

D. Amandla akhuphuka ngaphezu kwamanje:

(1) Ukushisa kwe-transformer

(2) Inzwa ayifani

(3) Ukwehluleka kwebhodi lokushayela

Indlela:

1. Ingaphakathi lomshini kanye nekhoyili yokungeniswa kufanele kupholiswe ngamanzi, futhi umthombo wamanzi kufanele uhlanzeke, ukuze ungavimbi ipayipi lokupholisa futhi ubangele umshini wokushisa nokulimala.

Izinga lokushisa lamanzi okupholisa akufanele libe phezulu kakhulu, kufanele libe ngaphansi kuka-45 ℃.

2. Ungasebenzisi itheyiphu yezinto ezingangeni manzi uma ufaka ikhoyili yokungeniswa ukuze ugweme ukuxhunywa kukagesi okubi

Ungashintshi i-coil soldering ye-induction ibe i-brazing noma i-solder yesiliva!

3. Kunezizathu eziningi zethonya lenani lokuphenduka kwekhoyili ye-induction ku-current, futhi kuzophinde kubangele i-overcurrent.

Okokuqala, ihlobene nempahla ye-workpiece;

Okwesibili, uma ikhoyili inkulu kakhulu, yamanje nayo izoba yincane;

Nakulokhu futhi, ikhoyili incane kakhulu, uma inani lokujika ikhoyili liba lincane, i-current izoba yincane.