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Patent Searching and Data


Title:
VIBRATION ACTUATOR AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/172576
Kind Code:
A1
Abstract:
This vibration actuator comprises a fixed body including a coil, a movable body disposed inside in the radial direction of the coil and including a magnet disposed so as to be relatively movable in an vibration direction orthogonal to the radial direction of the coil, and an elastic support part that supports the movable body so as to be freely moveable with respect to the fixed body, wherein the coil to which power is supplied and the magnet cooperate to cause the movable body to vibrate with respect to the fixed body. The elastic support part has an outer circumferential part fixed to the fixed body, an inner circumferential part disposed inside in the radial direction of the outer circumferential part and fixed to the movable body, and a deforming arm part disposed between the outer circumferential part and the inner circumferential part and coupling the outer circumferential part and the inner circumferential part, the deforming arm part being elastically deformable. An attenuation part is provided across the outer circumferential part and a portion of the deforming arm part on an outer circumferential part side thereof, the attenuation part attenuating vibrations in the elastic support part when the movable body moves.

Inventors:
TAKAHASHI YUKI
SEKIGUCHI CHIKARA
SHIMOMURA SHIGEYUKI
KUMANOMIDO YOSHIHIRO
KODAMA DAISUKE
YOSHII YUTA
INAMOTO SHIGENORI
Application Number:
PCT/JP2021/007584
Publication Date:
September 02, 2021
Filing Date:
February 26, 2021
Export Citation:
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Assignee:
MINEBEA MITSUMI INC (JP)
TAKAHASHI YUKI
SEKIGUCHI CHIKARA
SHIMOMURA SHIGEYUKI
KUMANOMIDO YOSHIHIRO
KODAMA DAISUKE
YOSHII YUTA
INAMOTO SHIGENORI
International Classes:
B06B1/04; B06B1/14; H02K33/00
Foreign References:
JP2019170118A2019-10-03
JP2019115187A2019-07-11
JP2011189337A2011-09-29
JPS59191427U1984-12-19
Attorney, Agent or Firm:
WASHIDA & ASSOCIATES (JP)
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