Title:
SOLENOID
Document Type and Number:
WIPO Patent Application WO/2020/110885
Kind Code:
A1
Abstract:
A solenoid (100, 100a to 100f) is provided with: a coil (20); a plunger (30); a yoke (10, 10d) having a side surface part (12, 12d) and a bottom part (14, 14d); a stator core (40, 40b, 40c, 40e), the stator core having a magnetic attraction core (50), a sliding core (60, 60b, 60c) which has a cylindrical core part (61, 61b, 61c) and a first magnetic flux transfer part (65, 65b) for performing transfer of magnetic flux between the yoke and the plunger through the core part, and a magnetic flux passage suppression part (70, 70e, 70f) for suppressing passage of magnetic flux between the sliding core and the magnetic attraction core; a second magnetic flux transfer part (18) for performing transfer of magnetic flux between the magnetic attraction core and the side surface part; and an elastic member (420, 420a) which is arranged in contact with an end surface (56) of the magnetic attraction core and urges the stator core to the bottom part side.
Inventors:
SASAO KAZUHIRO (JP)
WATARI YUTARO (JP)
WATARI YUTARO (JP)
Application Number:
PCT/JP2019/045573
Publication Date:
June 04, 2020
Filing Date:
November 21, 2019
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
H01F7/16; F16K31/06
Foreign References:
| JP2013084728A | 2013-05-09 | |||
| JP2006348982A | 2006-12-28 | |||
| JP4569371B2 | 2010-10-27 | |||
| JP2011171447A | 2011-09-01 |
Attorney, Agent or Firm:
TOKKYO GYOMUHOJIN MEISEI INTERNATIONAL PATENT FIRM (JP)
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