Title:
回転子および永久磁石電動機
Document Type and Number:
Japanese Patent JP7168019
Kind Code:
B2
Abstract:
To provide a rotor capable of preventing vibrations or noise during rotations by reducing a harmonic component or cogging torque during the rotations of the rotor, and a permanent magnet motor.SOLUTION: The present invention relates to a rotor 10 which is formed columnar from a magnetic substance and in which a plurality of magnet embedding holes where tabular permanent magnets are embedded are disposed in an annular shape at predetermined intervals in a circumferential direction. The rotor comprises: flux barriers 14a-14f and 15a-15f that are disposed from circumferential ends of the magnet embedding holes 12a-12d to an outer periphery of the rotor; and slits 19a-19f and 20a-20f that are disposed adjacently with the flux barriers. Each of the slits is a hole extending from an inner diameter side of the rotor 10 to an outer diameter side in a direction away from the flux barrier. In the outer periphery of the rotor opposing the flux barriers radially, notches 16a-16f and 17a-17f are provided.SELECTED DRAWING: Figure 1
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Inventors:
Hasegawa Kokou
Application Number:
JP2021036650A
Publication Date:
November 09, 2022
Filing Date:
March 08, 2021
Export Citation:
Assignee:
Fujitsu General Limited
International Classes:
H02K1/276; H02K21/16
Domestic Patent References:
| JP2012120326A | ||||
| JP2012217251A | ||||
| JP2007174738A |
Attorney, Agent or Firm:
Sakai International Patent Office
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