Title:
VIBRATION CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/122110
Kind Code:
A1
Abstract:
This vibration control device comprises: a soft magnetic rotor that is fixed to an output shaft of a rotation drive part or to a shaft rotating in conjunction with the rotation of the output shaft, and rotates according to the rotation of the output shaft; a stator provided around a rotary shaft of the rotor in a radial direction; coils that are fixed to the stator and provided in a pair with the rotary shaft interposed therebetween; a charging/discharging part that is provided to be connectable to the coils; a switching circuit provided to be able to switch the connection between the coils and the charging/discharging part; a first detector that detects a rotation angle of the rotor; and a control circuit that controls an operation of the switching circuit according to the rotation angle of the rotor.
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Inventors:
DOHI NAGAO (JP)
WAKASAKI TOMOKI (JP)
WAKASAKI TOMOKI (JP)
Application Number:
PCT/JP2019/048449
Publication Date:
June 18, 2020
Filing Date:
December 11, 2019
Export Citation:
Assignee:
NSK LTD (JP)
International Classes:
H02K7/20; F16F15/18; H02P23/04; H02P25/08; H02P29/40
Foreign References:
| JP2017192174A | 2017-10-19 | |||
| JP2018107843A | 2018-07-05 | |||
| JP2002027779A | 2002-01-25 | |||
| JP2010166681A | 2010-07-29 | |||
| JP2017139840A | 2017-08-10 | |||
| JP2017139840A | 2017-08-10 |
Other References:
See also references of EP 3896826A4
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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