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    • 5. 发明专利
    • Vacuum valve
    • 真空阀
    • JP2012022812A
    • 2012-02-02
    • JP2010158126
    • 2010-07-12
    • Toshiba Corp株式会社東芝
    • ASARI NAOKISASAKI HARUKASASAGE KOSUKEOTAKE SHIRO
    • H01H33/662
    • H01H33/66207H01H33/66261H01H2033/66269H01H2033/66284
    • PROBLEM TO BE SOLVED: To provide a vacuum valve arranged so that the dielectric strength characteristic is enhanced between a conducting shaft and an arc shield even when the conducting shaft and arc shield are large in areas of portions opposed to each other and the strength of breakdown electric field is reduced.SOLUTION: The vacuum valve has: a vacuum insulating container 1; a pair of contacts 6 and 7 which are housed in the vacuum insulating container 1 and can be freely brought into and out of contact with each other; a pair of conducting shafts 4 and 8 tightly fixed to the pair of contacts 6 and 7; an arc shield 11 provided to surround the pair of contacts 6 and 7; and metal coatings 5, 9 and 12 provided on outer surfaces of the pair of conducting shafts 4 and 8 and an inner surface of the arc shield 11, and made of metal material higher in fusing point than metal constituting themselves.
    • 要解决的问题:为了提供一种真空阀,其布置成即使当导电轴和电弧屏蔽在彼此相对的部分的区域中大时,导电轴和电弧屏蔽之间的介电强度特性也增强, 击穿电场强度降低。

      解决方案:真空阀具有:真空绝热容器1; 一对触点6和7,它们容纳在真空绝热容器1中并且可以自由地彼此接触和接触; 一对牢固地固定在一对触点6和7上的传导轴4和8; 设置成围绕一对触点6和7的弧形屏蔽件11; 以及设置在一对导电轴4和8的外表面上的金属涂层5,9和12以及弧形屏蔽件11的内表面,并且由与构成自身的金属相比高于熔点的金属材料制成。 版权所有(C)2012,JPO&INPIT