Motar DC ta ƙunshi manyan abubuwa guda biyu: rotor da stator. Rotor yana da cibiya mai toroidal tare da ramummuka don riƙe coils ko windings. A cewar dokar Faraday, lokacin da core ke jujjuyawa a filin maganadisu, ana haifar da wutar lantarki ko ƙarfin lantarki a cikin nada, kuma wannan ƙarfin lantarki da aka jawo zai haifar da motsi na yanzu, wanda ake kira eddy current.

Eddy currents sakamakon jujjuyawar cibiya ce a cikidafilin maganadisu

Eddy current wani nau'i ne na asarar maganadisu, kuma asarar wutar lantarki saboda kwararar abin da ake kira eddy current shine ake kira eddy current loss. Asarar hysteresis wani bangare ne na asarar maganadisu, kuma waɗannan asarar suna haifar da zafi da rage ingancin injin.

Ci gabaneddy current yana rinjayar juriyar kayan sa

Ga duk wani abu na maganadisu, akwai wata alaƙar da ba ta dace ba tsakanin ɓangaren yanki na kayan da juriya, wanda ke nufin cewa raguwar yanki yana haifar da haɓaka juriya, wanda hakan ke haifar da raguwar igiyoyin ruwa. Hanya ɗaya don rage yankin giciye shine don sanya kayan ya zama bakin ciki.

Wannan yana bayyana dalilin da yasa ake yin ginshiƙin motar da yawa siraran zanen ƙarfe (wanda ake kiralantarki motor laminations) maimakon guda ɗaya babba kuma ƙaƙƙarfan zanen ƙarfe. Waɗannan takaddun guda ɗaya suna da juriya mafi girma fiye da takarda mai ƙarfi ɗaya, don haka suna haifar da ƙarancin eddy halin yanzu da ƙananan asarar eddy na yanzu.

Jimillar magudanar ruwa a cikin rukunan da aka lanƙwara bai kai na madaidaicin maƙallan ba

Waɗannan ɗigon lamination suna keɓancewa daga juna, kuma ana amfani da Layer na lacquer yawanci don hana igiyar ruwa ta “tsalle” daga tari zuwa tari. Alakar murabba'i mai juzu'i tsakanin kauri na abu da hasara na yanzu yana nufin cewa duk wani raguwa a cikin kauri zai yi tasiri sosai akan adadin asarar. Don haka, Gator, Chinam rotor factory, yayi ƙoƙari ya sanya ƙwanƙwasa ƙwanƙwasa ƙwanƙwasa sirara kamar yadda zai yiwu daga hangen nesa na masana'antu da farashi, tare da injinan DC na zamani galibi suna amfani da lamination na 0.1 zuwa 0.5 mm lokacin farin ciki.

Kammalawa

Tsarin asara na yanzu yana buƙatar injin ɗin da za a jera shi tare da yadudduka masu rufewa don hana igiyoyin ruwa "tsalle" daga laminations zuwa laminations.