Title:
SOLENOID DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/093402
Kind Code:
A1
Abstract:
The present invention comprises: an electromagnetic coil (2) for which a magnetic flux (φ) is generated by the passage of electric current; a fixed core (3); a movable core (4); a magnetic spring (5) disposed between these cores (3) and (4); and a yoke (6). The magnetic spring (5) comprises a magnetic body, and biases the movable core (4) so as to separate from the fixed core (3) in a Z-direction. Moreover, the magnetic spring (5) is obtained by winding a plate-shaped spring member (50) comprising a magnetic body into a spiral shape, and is configured so that a center part (51) thereof is positioned further to one side in the Z-direction than a peripheral edge part (52). The magnetic spring (5) is configured so as to not deform as far as a minimum spring length (LMIN), which is the width of the plate-shaped spring member (50), when the movable core (4) is attracted to the abovementioned approaching position.
Inventors:
NISHIGUCHI YOSHITAKA (JP)
SOKI TAKAHIRO (JP)
SUGISAWA MASANAO (JP)
SOKI TAKAHIRO (JP)
SUGISAWA MASANAO (JP)
Application Number:
PCT/JP2018/041422
Publication Date:
May 16, 2019
Filing Date:
November 08, 2018
Export Citation:
Assignee:
SOKEN INC (JP)
DENSO CORP (JP)
ANDEN CO LTD (JP)
DENSO CORP (JP)
ANDEN CO LTD (JP)
International Classes:
H01F7/16
Foreign References:
| JP2003217420A | 2003-07-31 | |||
| JP2016070435A | 2016-05-09 | |||
| JP2003083464A | 2003-03-19 | |||
| JP2010527507A | 2010-08-12 | |||
| JP2018142529A | 2018-09-13 |
Attorney, Agent or Firm:
AICHI, TAKAHASHI, IWAKURA & ASSOCIATES (JP)
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