Title:
アキシャルギャップ型永久磁石回転機
Document Type and Number:
Japanese Patent JP5606459
Kind Code:
B2
Abstract:
Provided is a technology for enhancing the reliability of a permanent magnet rotating machine against thermal degradation of a permanent magnet. Specifically, provided is a permanent magnet rotating machine comprising a housing which houses a rotation shaft, a rotor connected to the rotation shaft and configured to rotate together with the rotation shaft, a stator, and permanent magnets fastened to the rotor or the stator; an air intake port provided at one end of the housing and an air exhaust port provided at the other end of the housing, the air intake port and the air exhaust port being configured to allow cooling air to flow through the housing; and a blower for feeding the cooling air to the air intake port; wherein the permanent magnet rotating machine is configured to be driven by magnetic force of the permanent magnets, and among the permanent magnets, a permanent magnet in the air exhaust port side has a higher coercivity than a permanent magnet in the air intake port side.
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Inventors:
Hiroshi Higuchi
Application Number:
JP2011552834A
Publication Date:
October 15, 2014
Filing Date:
February 04, 2011
Export Citation:
Assignee:
Shin-Etsu Chemical Co., Ltd.
International Classes:
H02K1/27; H02K15/03
Domestic Patent References:
| JP2008187792A | 2008-08-14 | |||
| JP2004282813A | 2004-10-07 | |||
| JP2008306922A | 2008-12-18 | |||
| JP2006005990A | 2006-01-05 | |||
| JP2008245356A | 2008-10-09 |
Foreign References:
| WO2006043348A1 | 2006-04-27 |
Attorney, Agent or Firm:
Okuyama In addition, it is 1.
Owner field Koichi
Tetsuo Matsushima
Hidefumi Kawamura
Owner field Koichi
Tetsuo Matsushima
Hidefumi Kawamura