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Title:
ハルバッハ配列ロータ、モータ、電動圧縮機、およびその製造方法
Document Type and Number:
Japanese Patent JP7267024
Kind Code:
B2
Abstract:
To provide a Halbach array rotor, a motor, an electric compressor, and a manufacturing method thereof, capable of improving a performance of a rotor providing permanent magnets having a Halbach array.SOLUTION: A rotor 1 includes an annular permanent magnet 10 and a support body 20 that supports the permanent magnet 10 inward from a radial direction. The permanent magnet 10 is magnetized in a Halbach array along a surface orthogonal to an axial direction of the rotor 1. The support body 20 is formed with a plurality of air gaps 21 arranged around the axis of the rotor 1. When magnetizing the permanent magnet 10, a main magnetizer 30 may be arranged around the permanent magnet 10 and a sub coil 41 of a sub magnetizer 40 may be inserted into the air gap 21.SELECTED DRAWING: Figure 2

Inventors:
Masahiro Nii
Mikito Sasaki
Shinichi Isobe
Yohei Hotta
Hiroyuki Kizen
Application Number:
JP2019021313A
Publication Date:
May 01, 2023
Filing Date:
February 08, 2019
Export Citation:
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Assignee:
Mitsubishi Heavy Industries Thermal Systems Co., Ltd.
International Classes:
H02K15/03; H01F7/02; H01F13/00
Domestic Patent References:
JP2000197287A
JP2010261393A
JP2010130818A
Attorney, Agent or Firm:
Oba Mitsuru
Miyuki Horikawa
Yukako Otake
Seiko Yamashita