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    • 69. 发明专利
    • Power-off device
    • 断电装置
    • JP2003281971A
    • 2003-10-03
    • JP2002079580
    • 2002-03-20
    • Fujikura Ltd株式会社フジクラ
    • KODA TSUTOMUHASEGAWA TAKESHI
    • H01H19/40H01H5/04H01H19/24H01H19/48
    • PROBLEM TO BE SOLVED: To improve an electric contact reliability.
      SOLUTION: A power-off device 1 consists of a housing 4, a rotary switch 2, and a torsion coil spring 3. A power supply side terminal 10 and a load side terminal 11 are stored in predetermined positions of the housing 4, and a conductive element 7 is equipped with the rotary switch 2. The torsion coil spring 3 reaches its maximum flexure just before the conductive element 7, previously contacting the load side terminal 11, contacts the power supply side terminal 10 by turning the rotary switch 2. This increases turning speed of the rotary switch 2 just before the power supply side terminal 10 and the load side terminal 11 short-circuit, and an arc discharge is easily extinguished.
      COPYRIGHT: (C)2004,JPO
    • 要解决的问题:提高电接触可靠性。 解决方案:断电装置1包括外壳4,旋转开关2和扭转螺旋弹簧3.电源侧端子10和负载侧端子11存储在壳体4的预定位置 并且导电元件7配备有旋转开关2.扭力螺旋弹簧3在刚好接触负载侧端子11的导电元件7之前达到其最大挠曲,通过转动旋转开关接触电源侧端子10 这就使刚刚在电源侧端子10和负载侧端子11短路之前的旋转开关2的转动速度增加,并且电弧放电很容易熄灭。 版权所有(C)2004,JPO