Title:
MOTOR, NEUTRALIZER, AND ELECTRIC POWER STEERING DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/235365
Kind Code:
A1
Abstract:
A motor according to the present invention is provided with a neutralizer which has a prescribed specific frequency. The neutralizer is provided with: a plurality of walls that extend in a direction from the inside of the motor toward the outside; a weight that is positioned between the walls; and a plurality of elastic members that extend from the walls toward the weight and support the weight. The weight supported by the elastic members can oscillate at least in the radial direction of the motor. In the motor, vibration in the radial direction is generated in accordance with rotation of a rotor. A system, spanning from a motor vibration source to a connecting part between the motor and a device, has a transmission function including characteristics of suppressing vibration of the connecting part at the prescribed specific frequency.
Inventors:
IZUMIYA HISA (JP)
MORI ATSUO (JP)
MORI ATSUO (JP)
Application Number:
PCT/JP2020/018751
Publication Date:
November 26, 2020
Filing Date:
May 09, 2020
Export Citation:
Assignee:
NIDEC CORP (JP)
International Classes:
H02K5/24; B62D5/04; B62D7/22; H02K5/22
Domestic Patent References:
| WO2012160850A1 | 2012-11-29 |
Foreign References:
| JPH07264804A | 1995-10-13 | |||
| JP2012080655A | 2012-04-19 | |||
| JP2008044523A | 2008-02-28 |
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