| 摘要 |
PROBLEM TO BE SOLVED: To provide a solenoid capable of improving magnetic efficiency.SOLUTION: A thin section 37G for partially reducing a magnetic path cross section area in an axial direction is provided on a stator core body 37 of a stator core 36. An annular member 45 contacting the thin section 37G from an outer peripheral side is fitted with the stator core 36. The annular member 45 is constituted by two members, a non-magnetic ring member 46 contacting the thin section 37G of the stator core 36, and a ferromagnetic cap member 47 positioned on the other end side of the ring member 46 and formed to have a bottom. In this case, outside of a bottom 47B of the cap member 47 is brought into contact with a cover member 48 covering an outer periphery of a coil 34A, and a gap S is formed between the inside of the bottom 47B and a bottom 37B of the stator core 36. |
