| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a self-holding solenoid valve in which a fixed core and a permanent magnet are integrally moved to easily adjust the stroke of the movable core and the lateral attraction of the movable core is suppressed. <P>SOLUTION: A first contact part 41a and a second contact part 41c are formed on the fixed core 41 at both ends in the axial direction, and the first and second contact parts 41a, 41c are connected to each other through a small-diameter part 42. A recess 43 is formed in the fixed core 41 between the first contact part 41a and the second contact part 41c, and the permanent magnet 45 is disposed in the recess 43. While a coil 33a is not electrified, the small-diameter part 42 is magnetically saturated since part of the magnetic fluxes generated from the permanent magnet 45 passes therethrough. A magnetic circuit is maintained by the magnetic fluxes other than the magnetic fluxes passing through the small-diameter part 42. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
