| 摘要 |
PROBLEM TO BE SOLVED: To provide a configuration capable of responding to a request of increasing the number of windings of a coil 8 or reducing a dimension in a radial direction in a linear solenoid 1 for which it is necessary to provide a respiration path for moving a fluid between the inside and the outside of a yoke 13.SOLUTION: In a linear solenoid 1, such a communication hole 15 is provided. Namely, the communication hole 15 is provided in a side part 13c to communicate inner and outer circumferences of a yoke 13 and overlapped with a space 31b in an axial direction. Thus, even without securing an annular gap between an outer circumference of a coil 8 and the side part 13c, a second respiration path 34 is formed from the communication hole 15 and a fluid can be moved between the inside and the outside of the yoke 13. Therefore, it is not necessary to wind the coil 8 around the annular gap conventionally required as the second respiration path 34 or the gap per se can be eliminated, thereby responding to a request of increasing the number of windings of the coil 8 or reducing a dimension in a radial direction. |
