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Drive apparatus and electric switch with such a drive apparatus

A technology for driving equipment and electrical switches, which can be used in electrical switches, electrical components, mechanical equipment, etc., and can solve problems such as the relaxation of spring force drives

Active Publication Date: 2014-06-04
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In such a switch with stored-force spring latch, there is only the risk that the motor drive will loosen due to the inertial movement of the motor drive when the motor drive is disconnected.

Method used

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  • Drive apparatus and electric switch with such a drive apparatus
  • Drive apparatus and electric switch with such a drive apparatus
  • Drive apparatus and electric switch with such a drive apparatus

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0022] exist figure 1 and figure 2 The electrical switch 1 shown in is an electrical switch in the form of a low-voltage power switch with a housing 5 consisting of two pole half-shells 2 , 3 and a cover 4 . A contact device consisting of a movable contact 6 and a fixed contact 7 , an arc extinguishing chamber 8 and a drive mechanism 9 are arranged in the housing. The drive mechanism 9 serves here to actuate the movable contact 6, which has a plurality of contact rods 11 mounted in a pivotable contact carrier 10 and arranged parallel to one another (only visible in the figure) a contact lever). The contact levers 11 are pivotally arranged in the contact carrier 10 in a known manner via hinge pins 12 and are each pretensioned by two contact force springs 13 . A flexible conductor 14 connects the contact rod 11 to the underlying connection bus 15 . The fixed contact 7 assigned to the movable contact 6 of the contact device is connected to the upper connection bus 16 . The...

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PUM

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Abstract

A drive apparatus for a tensioning shaft of a spring energy drive of an electric switch has a kinematic chain for connecting a drive element to the shaft and a control element. Within the chain, a first link which can be coupled to the shaft in rotationally fixed fashion and a second link arranged coaxially regarding the first link and capable of rotating under the force of the drive element are coupled to one another in a form-fitting and / or force-fitting manner by a coupling element which is moved by the control element on one of the two links such that the link coupling is released when a predetermined first angular link position is reached and is produced again when a predetermined second angular link position is overshot. To provide the drive apparatus with a more compact configuration, the coupling element can be moved in the radial direction of the shaft.

Description

technical field [0001] The invention relates to a structural design of a drive device for a tensioning shaft of a spring force drive of an electrical switch. [0002] The invention also relates to an electrical switch having such an actuation device with a spring-force drive having a tensioning shaft that can be coupled to the actuation device and in particular for actuating the switch contacts. Background technique [0003] Such electrical switches are known from documents DE29824499U1, US4649244A and EP1164605B1. The electrical switches each have an actuation device in the form of an electric actuation device of this type, wherein the force spring of the spring-force drive is locked in the tensioned state by means of a switch lock. [0004] In such a switch with a stored-force spring latch, there is only the risk that the spring-force drive will loosen due to the inertial movement of the electric drive when the electric drive is disconnected. It is therefore advantageous...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H3/30
CPCH01H2003/3063H01H3/3021Y10T74/18288
Inventor 伯克哈德·恩格曼拉尔夫·霍恩伯格
Owner SIEMENS AG