| 主权项 |
1. A linear solenoid comprising:
a coil; a plunger that is made of a magnetic material, wherein the plunger is placed on a radially inner side of the coil and is movable in an axial direction; a yoke that is made of a magnetic material and is configured into a cup form, wherein the yoke includes:
an opening;a bottom wall portion, which covers one axial end portion of the coil located on one axial side; anda peripheral wall portion, which is configured into a tubular form and covers an outer peripheral portion of the coil; a stator core that includes:
a magnetically attracting core, which is made of a magnetic material and magnetically attracts the plunger toward another axial side that is axially opposite from the one axial side with a magnetic flux generated through energization of the coil; anda slide core, which is made of a magnetic material and is configured into a tubular form, wherein the slide core is placed on a radially inner side of the coil and covers an outer peripheral portion of the plunger, and the slide core axially slidably supports the plunger and conducts the magnetic flux between the slide core and the plunger in a radial direction, wherein:the magnetically attracting core and the slide core are integrated with each other along with a magnetic shield portion, which is interposed between the magnetically attracting core and the slide core in the axial direction; andthe stator core is inserted into an inside of the yoke from one axial side of the stator core where the slide core is located, and the stator core is fixed to the yoke at the opening; and a communication hole that is formed in the peripheral wall portion and communicates between the inside and an outside of the yoke, wherein a gap, which is formed between the one axial end portion of the coil and the bottom wall portion, overlaps with the communication hole in the axial direction. |
