| 摘要 |
PURPOSE:To lower the magnetic resistance in a magnetic circuit and to increase the magnetizing force of a solenoid coil by arranging a first fixed core integrally with a housing and forming a second fixed core as the cover of the housing. CONSTITUTION:A solenoid coil 25 is contained in a housing 22 made of magnetic material. First and second fixed cores 26, 27 are arranged, while facing each other, at the opposite side in the axial direction of the solenoid coil 25. A movable core 30 contained movably in a cavity 29 is attracted to one fixed core is proportion to the magnitude of current. The first fixed core 26 is arranged integrally with the housing 22 and the second fixed core 27 is formed as the cover of the housing 22. |
