| 摘要 |
PROBLEM TO BE SOLVED: To provide a solenoid valve having a structure suitable for size reduction. SOLUTION: An internal fixed magnetic pole 50 is arranged in the space enclosed by an upper spool 20 and a lower spool 30 as rotating components, and a coil 40, and a shaft 77 is supported by the internal fixed magnetic pole 50 via a ball bearing 64. Further, both end surfaces of permanent magnets 54a and 54b are supported by a permanent magnet support portion 57a of a supporting body 55a and a permanent magnet supporting portion 55b of a permanent magnet supporting body 57b to oppose part of a wire constituting the coil 40 to both inner outer peripheral surfaces and inner peripheral surfaces of those permanent magnets. Therefore, the coil is wired to both the inner outer peripheral surfaces and inner peripheral surfaces of the permanent magnets to generate larger Lorentz force, and parts of the magnetic poles and the bearing are located in constitution corresponding to a coil bobbin, thereby facilitating the size reduction. COPYRIGHT: (C)2010,JPO&INPIT
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