Electrodynamically tilting contact system for power circuit...

Electricity: circuit makers and breakers – Electric switch details – Contact

Reexamination Certificate

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Details

C200S400000

Reexamination Certificate

active

10596585

ABSTRACT:
An electrodynamically tilting contact system for power circuit breakers includes an actuating shaft segment, a rotary contact bridge pivotally mounted therein and contact force springs that form components of a tilting snap-action mechanism, which holds the rotary contact bridge in a repulsed position after an electrodynamically effected repulsion of fixed contacts. Two rockers, while serving as an additional component of the tilting snap-action mechanism, are mounted on the rotary contact bridge in a manner that enables them to tilt. The contact force springs are supported between the actuating shaft segment and the rockers, whereby the spring longitudinal axes, the tilting axes of the rockers, and the rotational symmetry axis of the rotary contact bridge are located in the tilting point plane of the tilting snap-action mechanism. The rotary contact bridge is mounted in the actuating shaft segment via a bearing pin and an elongated hole bearing whose longitudinal axis, together with the tilting point plane, forms an, at most, acute angle perpendicular to the bearing pin.

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patent: 100 56 820 (2002-05-01), None

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