Title:
SOLENOID
Document Type and Number:
WIPO Patent Application WO/2021/106555
Kind Code:
A1
Abstract:
A solenoid (100, 100a-100c) comprising: a coil (20); a yoke (10) that has a cylindrical part (12) and a bottom (14) and houses the coil; a plunger (30) that slides in an axial direction (AD); a stator core (40) that has a magnetic attraction core (50), a sliding core (60, 60a-60c) having a cylindrical core (61) which houses the plunger and having a first magnetic flux transfer part (65, 65a-65c) which transfers a magnetic flux between the yoke and the core and which is formed outside in a radial direction from a core end (62), and a magnetic flux passage suppression part (70) which suppresses the passage of the magnetic flux between the sliding core and the magnetic attraction core; and a second magnetic flux transfer part (80) that is disposed outside a magnetic attraction core end (52) in the radial direction and that transfers the magnetic flux between the magnetic attraction core and the cylindrical part, wherein the first magnetic flux transfer part fills a gap in the cylindrical part.
Inventors:
HIRANO AKINORI (JP)
TOMITA SYODAI (JP)
TOMITA SYODAI (JP)
Application Number:
PCT/JP2020/041940
Publication Date:
June 03, 2021
Filing Date:
November 10, 2020
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
F16K31/06; H01F7/127; H01F7/16
Domestic Patent References:
| WO2019102931A1 | 2019-05-31 |
Foreign References:
| JP2008303961A | 2008-12-18 | |||
| JP2015192129A | 2015-11-02 | |||
| JP2015119185A | 2015-06-25 | |||
| JP2017166570A | 2017-09-21 | |||
| JP2012204574A | 2012-10-22 |
Attorney, Agent or Firm:
TOKKYO GYOMUHOJIN MEISEI INTERNATIONAL PATENT FIRM (JP)
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