Title:
電動機
Document Type and Number:
Japanese Patent JP5454023
Kind Code:
B2
Abstract:
To provide an electric motor whose efficiency is improved by increasing demagnetization resistance.
The electric motor 3 includes a stator 8, a rotor 9, a coil 38 fixed to the stator 8, and magnets 35, 36 fixed to the rotor 9. The magnets 35, 36 are manufactured by diffusing a heavy rare earth element from the surface of a base material. The heavy rare earth element is located mostly in a position I facing a portion where the distribution of a magnetic field generated from the coil 38 is strong.
COPYRIGHT: (C)2011,JPO&INPIT
Inventors:
Ishizaki Akinori
Yoshihiro Kataoka
Yoshihiro Kataoka
Application Number:
JP2009206073A
Publication Date:
March 26, 2014
Filing Date:
September 07, 2009
Export Citation:
Assignee:
Daikin Industries, Ltd.
International Classes:
H02K1/27
Domestic Patent References:
| JP2004007937A |
Foreign References:
| WO2009069575A1 | ||||
| WO2008123251A1 | ||||
| WO2003079516A1 |
Attorney, Agent or Firm:
Shinki Global IP Patent Corporation