Motor rotor with asymmetric structure

The invention relates to an asymmetric motor structure rotor. The asymmetric structure rotor adopts a mixed structure of two permanent magnets of neodymium iron boron and ferrite so as to reduce magnetic steel eddy current loss at a high speed. The permanent magnet motor rotor rotates anticlockwise,...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: CUI WEI, WANG DINGYU, REN LINGCHEN, ZHANG YIXUAN
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention relates to an asymmetric motor structure rotor. The asymmetric structure rotor adopts a mixed structure of two permanent magnets of neodymium iron boron and ferrite so as to reduce magnetic steel eddy current loss at a high speed. The permanent magnet motor rotor rotates anticlockwise, the two kinds of permanent magnets are asymmetrically arranged, the neodymium iron boron permanent magnets are located at the front edge of each pole of the rotor, one end of the ferrite magnetic steel on the rear side is thickened to reduce magnetic leakage, and therefore higher torque output capacity is obtained. According to the asymmetric mixed magnetic steel structure rotor, through the mixing proportion form of neodymium iron boron and ferrite, the use amount of rare earth permanent magnet materials of the motor is effectively reduced, the manufacturing cost is greatly reduced, meanwhile, the magnetic steel eddy current loss of the rare earth permanent magnet motor under the high-speed operation condition is