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Energy dissipating spring seat

A spring seat and component technology, applied in the direction of protection switch operation/release mechanism, power device inside the switch, contact vibration/shock damping, etc., can solve the problem of increased stress on the supporting structure shell component or frame component

Active Publication Date: 2008-12-17
EATON INTELLIGENT POWER LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Although the piston assembly requires few parts, reduces wear on these parts and fits into a reduced space, the piston assembly, and more particularly the spring of the piston assembly, results in a support structure - the housing Assemblies or frame assemblies - subject to increased stress

Method used

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  • Energy dissipating spring seat
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Examples

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Embodiment Construction

[0023] As used herein, "coupled" means a connection between two or more elements, whether direct or indirect, so long as a connection occurs.

[0024] As used herein, "directly coupled" means that two elements are in direct contact with each other.

[0025] As used herein, "fixedly coupled" or "fixed" means that two components are coupled so as to move as one.

[0026] As used herein, "operatively engaged" when referring to a component directly coupled to the cam means that the force applied to the cam by the component is sufficient to cause the cam to rotate.

[0027] As shown in FIG. 1 , an electrical switching apparatus 10 includes a housing assembly 12 defining an enclosed space 14 . In FIG. 1 , the front cover of housing assembly 12 is not shown, but is well known in the art. The electrical switching apparatus 10 also includes a conductor assembly 20 (shown schematically) having at least one line terminal 22, at least one line conductor 24, at least one pair of separabl...

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PUM

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Abstract

Within a closing assembly that utilizes a ram assembly having a spring driven ram body, an energy dissipating spring seat assembly is provided. The ram body is mounted on a guide assembly having at least one pin. The guide assembly also includes a base plate and a stop plate. A ram assembly spring is disposed between the ram body and the base plate and is structured to bias the ram body toward the stop plate. The spring seat assembly includes a spring seat bracket and a spring seat. The spring seat is, preferably, a generally flat, plate-like leaf spring that is disposed between the ram assembly springs and the base plate of the ram body. The spring seat is sufficiently rigid so as to not deflect fully under the force created by the compressed ram assembly springs, but not so rigid as to resist deflecting under the force created when the ram body impacts the stop plate.

Description

technical field [0001] The present application relates to an electrical switching device operating mechanism, and more particularly to an energy dissipating spring seat coupled to a spring operated ram within the operating mechanism. Background technique [0002] Electrical switching apparatus generally includes an enclosure, at least one busbar assembly having a pair of contacts, a trip device, and an operating mechanism. The housing assembly is configured to insulate and encapsulate other components. The at least one pair of contacts includes a fixed contact and a movable contact, and typically includes multiple pairs of fixed contacts and movable contacts. Each contact is coupled and in electrical communication with a conductive bus, which is further coupled and in electrical communication with a line or load. The trip device is configured to detect an overcurrent condition and actuate the operating mechanism. The operating mechanism is configured to open the contacts ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H3/30H01H3/60H01H71/10
CPCH01H3/3015H01H3/60H01H71/50H01H71/66H01H2003/3068
Inventor A·L·戈特沙尔克P·R·拉库斯D·A·帕克斯
Owner EATON INTELLIGENT POWER LTD