VIBRATION ACTUATOR AND ELECTRONIC APPARATUS

Title:

VIBRATION ACTUATOR AND ELECTRONIC APPARATUS

Document Type and Number:

WIPO Patent Application WO/2020/013161

Kind Code:

A1

Abstract:

This vibration actuator has a movable body having a coil, a fixed body having magnets, and a shaft part that rotatably supports the movable body, wherein the movable body reciprocally and rotationally vibrates around the shaft part with respect to the fixed body through the interaction of the coil and the magnets. The magnets are arranged in a direction perpendicular to the axial direction of the shaft part and each have two magnetic poles that face the movable body in the coil axial direction of the coil, the shaft part supports the movable body at a position shifted from the center position of the movable body in a direction perpendicular to the axial direction of the shaft part, and the coil axis of the coil of the movable body is located at a position facing a switching position of the magnetic pole of the magnet.

Inventors:

TAKAHASHI YUKI
KAGAMI MASAHARU
ISHITANI TOMOYA
KATO TAKANORI
GOMI YOSHIHIRO

Application Number:

PCT/JP2019/027082

Publication Date:

January 16, 2020

Filing Date:

July 09, 2019

Export Citation:

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Assignee:

MINEBEA MITSUMI INC (JP)
TAKAHASHI YUKI
KAGAMI MASAHARU
ISHITANI TOMOYA
KATO TAKANORI
GOMI YOSHIHIRO

International Classes:

B06B1/04; H02K33/04

Foreign References:

JPH11226500A	1999-08-24
JPS5937714U	1984-03-09
JP2016140127A	2016-08-04
JP2015095943A	2015-05-18
JP2015112013A	2015-06-18
JP4875133B2	2012-02-15
JP2016103881A	2016-06-02
JP2015157277A	2015-09-03
JP2018131821A	2018-08-23

Other References: