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Patent Searching and Data


Title:
LINEAR OSCILLATION MOTOR
Document Type and Number:
WIPO Patent Application WO/2017/164397
Kind Code:
A1
Abstract:
Provided is a linear vibration motor that effectively imparts a simulated pulling sensation. This linear vibration motor is equipped with: a stator; a movable element supported on the stator so as to be capable of oscillating along one axial direction; an elastic member elastically supporting the oscillation of the movable element; a coil that imparts driving force to the movable element along the one axial direction; and a drive signal generation unit that generates a drive signal that is input to the coil. The drive signal generation unit generates a drive signal which is 1/2 the frequency of the resonance frequency at which the movable element resonates, and the duty ratio of which is smaller than 1/2 or greater than 1/2.

Inventors:
HIDENAGA Hiroyuki (18-10 Shimura 2-chome, Itabashi-k, Tokyo 50, 〒1748550, JP)
Application Number:
JP2017/012132
Publication Date:
September 28, 2017
Filing Date:
March 24, 2017
Export Citation:
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Assignee:
NIDEC COPAL CORPORATION (18-10, Shimura 2-chome Itabashi-k, Tokyo 50, 〒1748550, JP)
International Classes:
H02K33/04; B06B1/04; G06F3/01; H02K33/06
Domestic Patent References:
WO2016017584A12016-02-04
Foreign References:
JP2015223563A2015-12-14
JP2010130746A2010-06-10
JP2004343931A2004-12-02
JP2015070729A2015-04-13
US20150222165A12015-08-06
Attorney, Agent or Firm:
EICHI PATENT & TRADEMARK CORP. (45-13, Sengoku 4-chome Bunkyo-k, Tokyo 11, 〒1120011, JP)
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