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    • 6. 发明授权
    • Vacuum switch and vacuum switchgear
    • 真空开关和真空开关柜
    • US08227720B2
    • 2012-07-24
    • US12494674
    • 2009-06-30
    • Kenji TsuchiyaTakashi SatoMiki YamazakiMasato KobayashiHiroyuki Ozawa
    • Kenji TsuchiyaTakashi SatoMiki YamazakiMasato KobayashiHiroyuki Ozawa
    • H01H33/66
    • H01H33/66261H01H2033/6623H01H2033/66284
    • A vacuum switch has a fixed electrode, a movable electrode facing the fixed electrode, an insulating cylinder, end plates covering both axial ends of the insulating cylinder, a vacuum chamber internally accommodating the fixed electrode and the movable electrode, and a solid isolation resin molded on the outside of the vacuum chamber, first coil springs, each of which is disposed around the outer circumference of one end plate while touching the end plate and an end face of the insulating cylinder, and second coil springs, each of which is united to one of the first springs and disposed around the outer circumference of the insulating cylinder so as to cover the angular part of the end face of the insulating cylinder, and the end plates, the end faces of the insulating cylinder, and the first and second coil springs are electrically connected.
    • 真空开关具有固定电极,与固定电极相对的可动电极,绝缘筒,覆盖绝缘筒的两个轴向端部的端板,内部容纳固定电极和可动电极的真空室,以及模制的固体隔离树脂 在真空室的外侧,在接触端板和绝缘筒的端面的同时围绕一个端板的外周配置的第一螺旋弹簧和第二螺旋弹簧, 第一弹簧中的一个并且设置在绝缘筒的外周周围,以覆盖绝缘筒的端面的角部,并且端板,绝缘筒的端面以及第一和第二线圈 弹簧电连接。