Title:
SOLENOID
Document Type and Number:
WIPO Patent Application WO/2020/110884
Kind Code:
A1
Abstract:
A solenoid (100, 100a to 100h) is provided with: a coil (20); a plunger (30); a yoke (10) having a side surface part (12) along an axis direction (AD) and a bottom part (14) facing a base end surface (34) of the plunger; a stator core (40) including a magnetic attraction core (50), a sliding core (60) which has a cylindrical core part (61) and a first magnetic flux transfer part (65) which is formed radially outward from an end part (62) of the core part facing the bottom part and performs transfer of magnetic flux between the yoke and the plunger through the core part, and a magnetic flux passage suppression part (70) for suppressing passage of magnetic flux between the sliding core and the magnetic attraction core; and a second magnetic flux transfer part (18) for performing transfer of magnetic flux between the magnetic attraction core and the side surface part. The first magnetic flux transfer part is press-contacted with at least one of the side surface part and the bottom part.
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Inventors:
SASAO KAZUHIRO (JP)
WATARI YUTARO (JP)
WATARI YUTARO (JP)
Application Number:
PCT/JP2019/045571
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 | |||
| JP2017161014A | 2017-09-14 |
Attorney, Agent or Firm:
TOKKYO GYOMUHOJIN MEISEI INTERNATIONAL PATENT FIRM (JP)
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