Title:
PERMANENT MAGNET SYNCHRONIZATION MOTOR
Document Type and Number:
WIPO Patent Application WO/2017/104436
Kind Code:
A1
Abstract:
The purpose of the present invention is to reduce the difference in torque pulsation during normal/reverse rotations of a permanent magnet synchronization motor and improve the steering sensation. The permanent magnet synchronization motor according to the present invention is provided with a first rotor having a plurality of first magnets and a second rotor having a plurality of second magnets, the second rotor being positioned in the rotary axis direction in relation to the first rotor. The first rotor has a plurality of first fixation parts for fixing each of the plurality of first magnets. The second rotor has a plurality of second fixation parts for fixing each of the plurality of second magnets. Each of the plurality of first magnets is arranged nearer one surface side of each of the plurality of first fixation parts in the circumferential direction. Each of the plurality of second magnets is arranged nearer the other surface side, on the opposite side from the aforementioned one surface side, of each of the plurality of second fixation parts in the circumferential direction.
Inventors:
TSUJI YUJI (JP)
KANAZAWA HIROSHI (JP)
KANAZAWA HIROSHI (JP)
Application Number:
PCT/JP2016/085836
Publication Date:
June 22, 2017
Filing Date:
December 02, 2016
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS ENG LTD (JP)
International Classes:
H02K1/27; H02K1/22
Foreign References:
| JP2011083188A | 2011-04-21 | |||
| JP2013066370A | 2013-04-11 | |||
| JP2006060952A | 2006-03-02 | |||
| JP2009118739A | 2009-05-28 | |||
| JP2010226784A | 2010-10-07 | |||
| JPH09182387A | 1997-07-11 |
Attorney, Agent or Firm:
TODA Yuji (JP)
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