Solenoid that drives a shaft in a direction along a central axis

A solenoid that drives a shaft in a direction along a central axis, comprising:

• a coil configured to generate magnetic flux;
• a magnetic container configured to accommodate the coil, that has a side surface portion and a bottom portion, and the side surface portion and a part of the bottom portion act as a yoke through which the magnetic flux passes;
• a plunger arranged inside the coil and configured to slide in a direction along the central axis to move the shaft;
• a stator core made of a magnetic material including
• a plunger accommodating portion having a cylindrical core portion configured to accommodate the plunger inside, a flange portion provided radially outward at an end of the core portion on the bottom portion side and welded to the bottom portion of the container by at least one weld portion, and
• a shaft accommodating portion configured to accommodate the shaft an attract the plunger by an action of the magnetic flux;
• and
• a ring core provided on an opposite side of the shaft accommodating portion to the plunger accommodating portion;
• wherein the weld portion passes through a surface of the flange that faces a surface of the bottom portion of the container.