公开(公告)号：US20220375671A1

公开(公告)日：2022-11-24

申请号：US17747438

申请日：2022-05-18

Applicant: DENSO CORPORATION

Inventor： Shodai TOMITA ,  Kazuhiro SASAO ,  Masato ARAI

IPC: H01F7/08

Abstract: A solenoid driving a shaft in a direction along a central axis includes a coil that generates magnetic flux and a magnetic container that accommodates the coil. The container has a side surface portion and a bottom portion. A plunger arranged inside the coil and sliding in a direction along the central axis to move the shaft, and a stator core are provided. The stator core has a plunger accommodating portion and a shaft accommodating portion that accommodates the shaft and attracts the plunger. The plunger accommodating portion has a cylindrical core portion that accommodates the plunger inside, and a flange portion that is provided radially outward at an end of the core portion on the bottom portion side and is welded to the bottom portion of the container. A ring core provided on the opposite side of the shaft accommodating portion to the plunger accommodating portion is provided.