| 摘要 |
PROBLEM TO BE SOLVED: To provide a solenoid valve allowing a movable iron core to move with a small current by preventing generation of air gap in the way of magnetic circuit and to make it small. SOLUTION: An elastic body receiver 34 made of magnetic material is attached near the tip located outside from a bobbin 10 of the movable iron core 20, and an elastic body 36 for separating made of magnetic material is provided between the elastic body receiver 34 and an outer yoke 14 so as to contact with them. In the state of the movable iron core 20 and a fixed iron core 18 attracted by carrying a current to a coil 12, a magnetic circuit 38 is formed where magnetism flows through the fixed iron core 18, the outer yoke 14, the elastic body 36 for separating, the elastic body receiver 34, the movable iron core 20 and the fixed iron core in order. The magnetic circuit 38 connects the elastic body 36 for separating made of magnetic material with the elastic body 36 for separating made of magnetic material between the outer yoke and the movable iron core 20, and prevents magnetic leakage by eliminating the conventional air gap. COPYRIGHT: (C)2003,JPO
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