Title:
PERMANENT MAGNET MOTOR AND METHOD FOR MANUFACTURING PERMANENT MAGNET MOTOR
Document Type and Number:
Japanese Patent JP2014042421
Kind Code:
A
Abstract:
To provide a permanent magnet motor that increases demagnetization resistance with little reduction in generated torque and that improves gap flux density distribution so as to reduce torque ripple and cogging torque.
A plurality of permanent magnets 50 are embedded in the interior of a rotor core 40. At the time of manufacturing a permanent magnet motor 100, portions of the permanent magnets 50 with low demagnetization resistance are partially and uniformly demagnetized in advance.
Inventors:
MIYASHITA TOSHIHITO
HORIUCHI MANABU
HORIUCHI MANABU
Application Number:
JP2012184303A
Publication Date:
March 06, 2014
Filing Date:
August 23, 2012
Export Citation:
Assignee:
SANYO ELECTRIC CO
International Classes:
H02K1/27; H01F13/00; H02K15/03
Domestic Patent References:
JPH10164804A | 1998-06-19 |
Foreign References:
WO2008123251A1 | 2008-10-16 |
Attorney, Agent or Firm:
Hatta International Patent Corporation