Title:
ACTUATOR
Document Type and Number:
WIPO Patent Application WO/2017/030004
Kind Code:
A1
Abstract:
Provided is a compact and lightweight actuator capable of generating high thrust force in a stable manner without being influenced by demagnetization. This actuator is equipped with: a first magnet body forming a ring shape and magnetized in the direction from the center toward the outside; a second magnet body forming a ring shape, magnetized in the direction from the center toward the outside, and secured so as to be fitted to the exterior of the first magnet body; and a ring-shaped coil arranged coaxially so as to oppose one surface of the first magnet body and the second magnet body. The magnetization direction of the first magnet body is inclined with respect to the opposing surface of the coil, and the orientation of the magnetization is away from the entire coil, and the magnetization direction of the second magnet body is inclined with respect to the opposing surface of the coil, and the orientation of the magnetization is toward the coil.
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Inventors:
OHHASHI HIROMITSU (JP)
Application Number:
PCT/JP2016/072984
Publication Date:
February 23, 2017
Filing Date:
August 04, 2016
Export Citation:
Assignee:
HITACHI METALS LTD (JP)
International Classes:
H02K33/02
Foreign References:
| JP2010110087A | 2010-05-13 | |||
| JP2007251128A | 2007-09-27 | |||
| JP2002238241A | 2002-08-23 | |||
| JP2007221911A | 2007-08-30 | |||
| JP2013138592A | 2013-07-11 |
Attorney, Agent or Firm:
KOHNO, Hideto et al. (JP)
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