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    • 6. 发明授权
    • Vacuum switch
    • 真空开关
    • US5589675A
    • 1996-12-31
    • US224819
    • 1994-04-08
    • Nole L. WaltersEdward A. RaleighPeter H. Thiel
    • Nole L. WaltersEdward A. RaleighPeter H. Thiel
    • H01H33/666H01H33/02H01H33/66
    • H01H33/666H01H2033/6667
    • A vacuum switch includes a mechanism for opening and closing the contacts including a drive link, three toggle links and a drop link. The drive link is coupled to the movable contact of the vacuum bottle and to a mounting tower. The drive link is also coupled to two of the toggle links. The toggle links are coupled to the drop link, which is in turn coupled to a lever. A cam is coupled to the lever via a pin. The cam is also coupled to an over-center spring mechanism. A handle is used to rotate the pin to which the cam is coupled, which in turn rotates the cam. As the cam rotates, the spring mechanism prevents movement of the lever and various links until a predetermined amount of energy is stored in the spring. When this energy level is reached, the spring assembly pivots, thereby allowing the cam to pivot as well. The pivoting cam strikes the lever and causes it to move. The lever in turn imparts motion to the drive system via the drop link. The contacts may be opened or closed depending upon the direction of rotation of the handle.
    • 真空开关包括用于打开和关闭触点的机构,包括驱动连杆,三个拨动连杆和下降连杆。 驱动连杆联接到真空瓶的可动触点和安装塔。 驱动链接也耦合到两个切换链接。 拨动连杆联接到下降连杆,该联动装置又联接到杠杆。 凸轮通过销耦合到杠杆。 凸轮还联接到过中心的弹簧机构。 手柄用于旋转凸轮联接到的销,这又转动凸轮。 当凸轮旋转时,弹簧机构防止杠杆和各种连杆的移动,直到在弹簧中存储预定量的能量。 当达到这种能量水平时,弹簧组件枢转,从而允许凸轮枢转。 枢转凸轮撞击杠杆并使其移动。 杠杆又通过落料链路向驱动系统施加运动。 可以根据手柄的旋转方向来打开或关闭触点。