Title:
SOLENOID
Document Type and Number:
WIPO Patent Application WO/2020/071172
Kind Code:
A1
Abstract:
This solenoid (100, 100a, 100b) comprises: a coil (20) that generates magnetic force by being energized; a cylindrical sliding core (60) arranged on the inner peripheral surface of the coil; a columnar plunger (30) that is arranged on the inner peripheral surface of the sliding core and that slides along an axial direction (AD); a bottomed cylindrical yoke (10, 10a, 10b) having a tube part (12) and a bottom part (14); a magnetic attraction core (50) that is arranged facing a distal-end surface (32) of the plunger and that magnetically attracts the plunger; and a magnetic flux delivery member (80) that is arranged on the outer peripheral side of an end part (62) of the sliding core that faces the bottom part, the magnetic flux delivery member delivering magnetic flux between the sliding core and the yoke. In a state in which the plunger is closest to the magnetic attraction core, the position of the proximal-end surface of the plunger along the axial direction is the same as the position of the end part of the sliding core along the axial direction, or is closer to the bottom part along the axial direction than is the end part.
Inventors:
WATARI YUTARO (JP)
Application Number:
PCT/JP2019/037249
Publication Date:
April 09, 2020
Filing Date:
September 24, 2019
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
H01F7/16; F16K31/06
Foreign References:
| JP2011108781A | 2011-06-02 |
Attorney, Agent or Firm:
TOKKYO GYOMUHOJIN MEISEI INTERNATIONAL PATENT FIRM (JP)
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