ANISOTROPIC MAGNET AND METHOD OF MANUFACTURING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide an anisotropic magnet whose magnetization direction can be controlled with an externally-applied magnetizing magnetic field without lowering residual magnetic flux density.

SOLUTION: A plurality of segment type anisotropic magnets 50A fixed to a rotor 60 of a motor each has an orientation direction of the segment type anisotropic magnets 50A each oriented in parallel to a magnetic pole center axis and also has an orientation rate controlled to 75 to 88%. The magnetization direction is formed in an orientation direction along a rotor radius near the magnetic pole center axis of each segment type anisotropic magnet 50A and is inclined toward the magnetic pole center axis direction of a rotor outer circumferential side near an end of the each segment type anisotropic magnet 50A.

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