Title:
MOTOR, ELECTRIC POWER STEERING DEVICE, AND DEVICE HAVING VIBRATION SOURCE
Document Type and Number:
WIPO Patent Application WO/2020/059691
Kind Code:
A1
Abstract:
A motor according to the present disclosure is provided with a stator, a rotor, a cylindrical housing, and two neutralizers having the same predetermined natural frequency. One of the two neutralizers is positioned offset by 90º in the circumferential direction of the housing from the other. According to the rotation of the rotor, vibrations of a predetermined frequency are generated in the motor, and a system extending from a vibration source of the motor to a coupling part between the motor and the device has a transfer function having the property of suppressing the vibration of the coupling part at a predetermined natural frequency.
Inventors:
IZUMIYA HISA (JP)
MORI ATSUO (JP)
MORI ATSUO (JP)
Application Number:
PCT/JP2019/036325
Publication Date:
March 26, 2020
Filing Date:
September 17, 2019
Export Citation:
Assignee:
NIDEC CORP (JP)
International Classes:
H02K5/24; B62D5/04; F16F15/02
Domestic Patent References:
| WO2017119059A1 | 2017-07-13 |
Foreign References:
| JP2014057406A | 2014-03-27 | |||
| JP2014096951A | 2014-05-22 | |||
| JP2016160949A | 2016-09-05 | |||
| JP2010124591A | 2010-06-03 | |||
| JP2007321814A | 2007-12-13 | |||
| JP2009303305A | 2009-12-24 | |||
| JP2002331943A | 2002-11-19 | |||
| JP2007314070A | 2007-12-06 | |||
| JP2013061058A | 2013-04-04 | |||
| US20160076615A1 | 2016-03-17 |
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