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    • 73. 发明申请
    • CONTACT MECHANISM FOR ELECTRONIC OVERLOAD RELAYS
    • 电子过载继电器接触机构
    • WO99060593A1
    • 1999-11-25
    • PCT/US1999/007595
    • 1999-04-06
    • H01H73/36H01H1/18H01H50/32H01H50/54H01H51/22H01H51/24H01H71/32
    • H01H50/546H01H1/18H01H51/2227H01H71/323
    • An improved trip mechanism for an overload relay includes a housing, a bistable armature mounted in the housing on a pivot for pivotal movement between two stable positions and fixed contacts within the housing. Moveable contacts are located within the housing and springs engage the moveable contacts and urge the same toward the fixed contacts to establish an electrical conducting relationship therebetween. Moveable, contact engaging posts are located on the armature and opposite of the springs for engaging the moveable contacts and moving them away from the fixed contacts against the bias of the springs for one of the two stable positions and for effectively disengaging the moveable contacts to allow the springs to move the moveable contacts into the electrical conducting relation. The relay further includes a latch surface carried by the housing and a spring mounted on the housing and having a latch finger for engaging the latch surface and retaining the armature in one of its two positions.
    • 用于过载继电器的改进跳闸机构包括壳体,安装在壳体中的枢轴上的双稳态电枢,用于在两个稳定位置之间枢转运动并且在壳体内的固定触点。 可移动触点位于壳体内,并且弹簧与可移动触点接合并将其推向固定触头以在它们之间建立导电关系。 可移动的接触接合柱位于电枢上并且位于弹簧的对面,用于接合可移动触点并且克服两个稳定位置之一的弹簧的偏压使它们远离固定触点移动,并且有效地使可移动触点脱离以允许 弹簧将可动触点移动到导电关系中。 继电器还包括由壳体承载的闩锁表面和安装在壳体上的弹簧,并且具有用于接合闩锁表面并将衔铁保持在其两个位置之一中的闩锁指状物。