The rotation child of rotation electrical machinery

Japanese Patent JP5917333

B2

PROBLEM TO BE SOLVED: To extend a circumferential length of a plurality of circumferential magnetization parts 5 by making arrangement of a magnetic part on an inner diameter side of a cylindrical magnet unnecessary in a rotor 1 of a rotary electric machine 3 having the cylindrical magnet and the plurality of circumferential magnetization parts 5.SOLUTION: A rotor 1 includes: an anisotropic pole magnetization part 4 which is a magnet provided in a cylindrical shape and anisotropically magnetized so that different poles alternately appear in a circumferential direction on an outer circumferential part. Therefore, opposite poles can alternately appear in the circumferential direction on the outer circumferential part of the anisotropic pole magnetization part 4 and density of a magnetic flux can be increased in a magnetic part 6 arranged on an outer diameter side of the anisotropic pole magnetization part 4 without providing a region though which the magnetic flux is passed on an inner diameter side of the anisotropic pole magnetization part 4 which is the cylindrical magnet. Thereby the circumferential length of a plurality of circumferential magnetization parts 5 can be extended by removing the region through which the magnetic flux is passed from the inner diameter side of the cylindrical magnet in a configuration having the cylindrical magnet and the plurality of circumferential magnetization parts 5.

Shinji Makita
Yasuhide Ito
Tomohiro Aoyama
Yoji Yamada
Chie Morita

JP2012181349A

May 11, 2016

August 20, 2012

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ASMO Co., Ltd.

H02K1/27

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Kenji Ishiguro
Shinji Hase

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