Title:
SOLENOID VALVE
Document Type and Number:
WIPO Patent Application WO/2018/147175
Kind Code:
A1
Abstract:
One embodiment of a solenoid valve according to the present invention comprises: a solenoid having a guide section; a mover which moves in the axial direction radially inside the guide section; a yoke member consisting of a magnetic material and disposed on one axial side of the mover; a magnet disposed on one axial side of the yoke member; an elastic body for applying an elastic force to the mover in the direction away from the magnet; a cover consisting of a magnetic material; a pin which moves as the mover moves; and a valve section which is opened and closed as the mover and the pin move. The cover has a cylinder section surrounding the radial outside of the solenoid; a first wall section disposed on the other axial side of the solenoid; and a second wall section for covering one axial side of the magnet. The solenoid has a cylindrical bobbin section surrounding the radial outside of the mover and having a guide section provided on the radial inner surface thereof; and a coil wound on the radial outer surface of the bobbin section. The yoke member has a portion located on the outside radially of the magnet at a position away from the inner surface of the cover.
Inventors:
MURATA DAISUKE (JP)
Application Number:
PCT/JP2018/003552
Publication Date:
August 16, 2018
Filing Date:
February 02, 2018
Export Citation:
Assignee:
NIDEC TOSOK CORP (JP)
International Classes:
H01F7/122; F16K31/06; H01F7/14; H01F7/16
Foreign References:
| JPH1137333A | 1999-02-12 | |||
| JP2010129680A | 2010-06-10 | |||
| JP2000049011A | 2000-02-18 | |||
| JP2016051708A | 2016-04-11 | |||
| JP2011238937A | 2011-11-24 |
Attorney, Agent or Firm:
KOHO IP LAW (JP)
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