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Movable contact holder for circuit breaker and circuit breaker comprising same

A technology for retainers and circuit breakers, which is applied in the directions of contacts, circuits, relays, etc., and can solve the problems of moving elements that hinder or hinder the movement and reduce the service life.

Pending Publication Date: 2022-05-06
SCHNEIDER ELECTRIC IND SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Now, this sliding of the movable element presents the disadvantage of degrading the support by friction, which causes the movement of the movable element to be hampered or impeded and reduces its lifespan

Method used

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  • Movable contact holder for circuit breaker and circuit breaker comprising same
  • Movable contact holder for circuit breaker and circuit breaker comprising same
  • Movable contact holder for circuit breaker and circuit breaker comprising same

Examples

Experimental program
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Effect test

Embodiment Construction

[0042] Figures 1 to 3 A circuit breaker 10 is shown in . This circuit breaker is intended to be included in the circuit C represented by the axis in these figures. The circuit breaker 10 makes it possible to establish or interrupt the passage of current in this circuit C. In practice, the circuit breaker 10 is for example incorporated in a contactor.

[0043] The circuit breaker 10 comprises two half-shells 12 and 14 made of insulating material which together form an enclosure 16 , an upstream conductive strip 18 , a downstream conductive strip 20 and a movable contact retainer located partly inside and partly outside the case 16 . Device 22.

[0044] Conductive strips 18 and 20, for example made of copper, form part of a circuit C to which, when circuit breaker 10 is incorporated, it is connected to the circuit by terminals 19 and 21 formed by the ends of the conductive strips 18 and 20, respectively. . C' is used to denote a portion of the electrical circuit C formed b...

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PUM

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Abstract

This movable contact holder (22) for a circuit breaker (10) comprises: a support in which a housing is formed; a movable element (26) made of an electrically conductive material mounted so as to slide in the housing of the support on a longitudinal axis (Z) of the support; an upstream electrical contact pad (28) and a downstream electrical contact pad (30) carried by the movable element; and a spring (36) exerting a restoring force (Fr) on the movable element. The support includes two elliptical holes formed in the housing and extending along a longitudinal axis thereof. The movable contact holder (22) further comprises a guide shaft (66) fixed in translation with respect to the movable element (26), extending along an axis parallel to a transverse axis (Y) of the support and engaging in an elliptical hole of the support. A guide shaft engaged in the oblong bore guides translation of the movable element in the housing.

Description

technical field [0001] The present invention relates to a movable contact holder for a circuit breaker and a circuit breaker comprising such a movable contact holder. Background technique [0002] In the field of electrical switchgear it is known practice to use circuit breakers to interrupt current lines. Such circuit breakers include a housing that includes stationary electrical contacts and movable electrical contacts, the latter being carried by movable contact holders in the housing. Such movable contact holders usually consist of a support made of insulating material and a conductive metal piece carrying a movable electrical contact, called a "movable element" or "movable contact". The movable element is usually slidable on the support in order to maintain a satisfactory contact pressure with the fixed electrical contacts. Now, this sliding of the movable element presents the disadvantage of degrading the support by friction, which causes the movement of the movable ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H1/50H01H71/02H01H71/10
CPCH01H71/02H01H71/10H01H1/50H01H1/20H01H50/546H01H1/221H01H1/24H01H1/365H01H50/56
Inventor P.拉尔谢
Owner SCHNEIDER ELECTRIC IND SAS
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