ACTUATOR, AIR PUMP, BEAUTY TREATMENT DEVICE, AND LASER SCANNING DEVICE

Title:

ACTUATOR, AIR PUMP, BEAUTY TREATMENT DEVICE, AND LASER SCANNING DEVICE

Document Type and Number:

WIPO Patent Application WO/2015/162933

Kind Code:

A1

Abstract:

Provided is an actuator that has a simple structure, is easy to assemble, and provides a high output while the cost is reduced and the size is reduced by the reduction of the thickness. The actuator comprises: a movable body including a single-pole magnetized single pole magnet; and a plurality of electromagnets each having a magnetic core portion and a coil portion for exciting the core portion. The actuator has: a fixed body on which three or more magnetic poles of the electromagnets are disposed at positions orthogonal to the magnetization direction of the single-pole magnet; and an elastic body bridged between the movable body and the fixed body and elastically deforming when current is supplied to the coil portion, thereby supporting the movable body so as to be movable in the magnetization direction of the single-pole magnet and the two-degree-of-freedom direction. The elastic body is attached to the movable body so that the movable center of the movable body matches the substantial center of the generated magnetic torque of the movable body.

Inventors:

TAKAHASHI YUKI
INAMOTO SHIGENORI

Application Number:

PCT/JP2015/002214

Publication Date:

October 29, 2015

Filing Date:

April 23, 2015

Export Citation:

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Assignee:

MITSUMI ELECTRIC CO LTD (JP)
TAKAHASHI YUKI
INAMOTO SHIGENORI

International Classes:

H02K33/00; A61B5/022; F04B45/047; G01S7/481

Foreign References:

JP2012191817A	2012-10-04
JP2010057226A	2010-03-11
JPH0865990A	1996-03-08
JP2011128203A	2011-06-30
JP2003116255A	2003-04-18
US5252870A	1993-10-12
JP4617554B2	2011-01-26
JP4757573B2	2011-08-24
JP3038707B1	2000-05-08

Other References: