Title:
回転電機、回転子鉄心の製造方法
Document Type and Number:
Japanese Patent JP6806352
Kind Code:
B2
Abstract:
A rotary electric machine comprises a rotor core and a plurality of permanent magnets embedded in the rotor core along a circumferential direction of the rotor core. The rotor core includes a magnetic pole portion disposed between two permanent magnets adjoining along the circumferential direction of the rotor core. The magnetic pole portion includes a circular arc surface whose cross-sectional shape in a direction perpendicular to an axial direction of the rotor core is a circular arc shape differing in curvature from an outer circumferential circle which is a circumference of a maximum outer diameter portion of the rotor core.
Inventors:
Isao Nakagawa
Urabe Motoki
Urabe Motoki
Application Number:
JP2015201826A
Publication Date:
January 06, 2021
Filing Date:
October 13, 2015
Export Citation:
Assignee:
Yaskawa Electric Co., Ltd.
International Classes:
H02K1/27
Domestic Patent References:
| JP2000197292A | ||||
| JP2001346368A | ||||
| JP2005261024A | ||||
| JP2009112166A |
Attorney, Agent or Firm:
Patent Business Corporation Daiichi Technical International Patent Office