Curie kutentha kwa transformer pachimake

"Nthawi ina mmbuyomo, wina adafunsa ngati maginito ali ndi kalasi yolimbana ndi kutentha. Ndipo wina anayankha motere:

'Kutentha kukana kalasi ndi zipangizo insulating. Maginito pachimake sichimaganiziridwa kuti ndi chinthu chotsekereza, kotero ilibe giredi yeniyeni yolimbana ndi kutentha. Koma ili ndi gawo lofunikira kwambiri lokhudzana ndi kutentha lotchedwaCurie kutentha.'

Lero, tiyeni tikambirane za 'Curie kutentha' ya magnetic core.

Kutentha kwa Curie, komwe kumadziwikanso kuti Curie point kapena magnetic transition point, ndipamene mphamvu ya maginito ya zinthuzo imatsika kufika pa 0 pamene ikutenthedwa. Zinapezeka ndi Curies kumapeto kwa zaka za zana la 19: mukatenthetsa maginito ku kutentha kwina, maginito ake oyambirira amatha.

Mu ma transformer (ma inductors), ngatimaginito pachimakeKutentha kwa 'kupitirira kutentha kwake kwa Curie, kungayambitse inductance ku 0. Ngakhale kuti mankhwala ambiri amatha kuyambiranso kugwira ntchito pambuyo pozizira, kwa osintha (inductors) akugwira ntchito, kukhala ndi zero inductance kungayambitse kulephera ndi kupsa mtima.

Choncho pamene kupanga ndi kusankhathiransifoma(ma inductors), ndikofunikira kusiya malire kuti kutentha kwa maginito kukhale pansi pa Curie pogwira ntchito.

Kutentha kwa Curie kwa mphamvu ya manganese-zinc ferrite ndi yoposa 210 ° C. Zida zambiri zotchinjiriza za thiransifoma (inductor) zimakhala ndi kutentha kocheperako kuposa uku, chifukwa chake pakugwira ntchito, maginito nthawi zambiri safika kutentha kotere. ”

Kutentha kwa Curie kwa high-conductivity manganese-zinc ferrite ndi kupitirira 110 ° C. Zida zambiri zopangira thiransifoma (inductor) zimatha kutentha kwambiri kuposa izi, ndipo kutentha kwa thiransifoma (inductor) pambuyo pogwira ntchito kumatha kupitilira izi. Chifukwa chake, tikuyenera kusamala momwe timapangira maginito apamwamba kwambiri kuti titsimikizire kuti zisatenthe kwambiri zikagwiritsidwa ntchito.

Kutentha kwa Curie kwa nickel-zinc ferrite kumapitilira 100 ° C. Monga momwe zilili ndi ferrite yothamanga kwambiri, ndikofunikira kwambiri kuwonetsetsa kuti maginito siwotentha kuposa kutentha kwa Curie pomwe chosinthira (inductor) chikugwira ntchito. Izi ndizofunikira kwambiri pazinthu zathu zomwe timagwiritsa ntchito nickel-zinc, monga ma inductors okhala ngati I, ma inductors ooneka ngati ndodo, ndi ma inductors a nickel-zinc toroidal inductors.

Kutentha kwa Curie kwa alloy powder core ndi kupitirira 450 ℃, komwe ndi kokwera kwambiri. Pankhaniyi, tikuyenera kusamala kwambiri momwe zida zina za thiransifoma (inductor) zimatha kupirira kutentha.

Nkhaniyi ikuchokera pa intaneti ndipo ndi ya mlembi wake woyamba.