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Title:
ELECTROMAGNETIC ACTUATOR FOR VIBRATION ISOLATION, AND ACTIVE FLUID-SEALED VIBRATION ISOLATION DEVICE AND ACTIVE DAMPING DEVICE USING SAME
Document Type and Number:
WIPO Patent Application WO/2016/084558
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide: an electromagnetic actuator for vibration isolation which has a novel structure, is capable of controlling operations in an even higher frequency range, and is capable of achieving a sufficiently large generated force; and an active fluid-sealed vibration isolation device and an active damping device which have novel structures and use said actuator. This electromagnetic actuator (10) for vibration isolation is configured such that: a mover (70) provided with a structure in which a permanent magnet (104) and inner yokes (106, 108) are superposed on each other is inserted into a cylindrical stator (68) provided with a structure in which outer yokes (76) are attached to coils (74); and the mover (70) is relatively displaced in the axial direction with respect to the stator (68) by passing a current through the coils (74). Outer peripheral ends of the inner yokes (106, 108) are configured as thick sections (112) each having a large axial-direction dimension. Lightening holes (110) are provided in inner peripheral sections of the inner yokes (106, 108). The axial-direction dimensions of the inner yokes (106, 108) are smaller in the sections where the lightening holes (110) are formed than in the thick sections (112).

Inventors:
YASUDA, Takayoshi (1 Higashi 3-chome, Komaki-sh, Aichi 50, 〒4858550, JP)
KOYAMA, Hironori (1 Higashi 3-chome, Komaki-sh, Aichi 50, 〒4858550, JP)
NAGASAWA, Masahiko (1 Higashi 3-chome, Komaki-sh, Aichi 50, 〒4858550, JP)
HASHIMOTO, Yushi (1 Higashi 3-chome, Komaki-sh, Aichi 50, 〒4858550, JP)
Application Number:
JP2015/080947
Publication Date:
June 02, 2016
Filing Date:
November 02, 2015
Export Citation:
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Assignee:
SUMITOMO RIKO COMPANY LIMITED (1 Higashi 3-chome, Komaki-shi Aichi, 50, 〒4858550, JP)
International Classes:
H02K33/16; F16F13/26
Domestic Patent References:
WO2010116704A12010-10-14
Foreign References:
JP2010107000A2010-05-13
JP2010253422A2010-11-11
US20140096677A12014-04-10
Attorney, Agent or Firm:
KASAI & NAKANE INTERNATIONAL PATENT FIRM et al. (1-681, Sakurabashi Tsu-sh, Mie 03, 〒5140003, JP)
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