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Device for mutual locking of switches i.e. circuit breakers

A technology of switches and stops, applied in the field of devices for interlocking two switches, especially circuit breakers, which can solve the problems of manufacturing tolerances and huge wear and tear

Inactive Publication Date: 2013-01-23
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Deviations are only possible within very narrow tolerance ranges, which leads to a huge sensitivity to manufacturing tolerances and wear

Method used

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  • Device for mutual locking of switches i.e. circuit breakers
  • Device for mutual locking of switches i.e. circuit breakers
  • Device for mutual locking of switches i.e. circuit breakers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] figure 1 A device 1 for interlocking two circuit breakers, hereinafter referred to as switches, is shown. For simplification reasons, in figure 1 Only the control plate 2 of the two switches is shown in simplified form, which can be pivoted about the axis 2a by a drive shaft of the switch, also not shown.

[0017] The two switches are usually fastened adjacent to each other on the corresponding mounting plate. Control sheet 2 (according to figure 1 Shown on the left) thus belongs to the left switch, and the right control piece 2 belongs to the right switch. The device consists of two components, component 11 is assigned to the left switch and another component is assigned to the right switch. The two components 11 , 1r each have a frame 13 which here at the same time has the function of the protective cover 3 . On the outer side of the rear of the switches, the switches are fastened to the mounting plate with corresponding fastening plates (eg corner plates). figu...

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PUM

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Abstract

The device has a push rod (5) comprising a toothed rack (9) in longitudinal direction of the push rod. An actuator (15) is fixedly arranged at a toothed wheel (10) and rests at a stop surface formed at a stop lever (11), when the push rod is in a neutral position. The actuator pivots the stop lever against elastic force during moving of the push rod from the neutral position, and the actuator is distant from the stop surface of the stop lever by tensile force of a cable (6), where the stop lever remains at its position at a fixing stop unit (14).

Description

technical field [0001] The invention relates to a device according to the preamble of claim 1 for interlocking two switches, in particular circuit breakers. Background technique [0002] Interlocking devices are known as accessories for circuit breaker configurations with eg two switches arranged next to each other. The interface between the circuit breaker and the locking device is often formed here by a control plate-tapping rod-mechanical mechanism. The control disc can be integrated in the drive shaft inside the switch; the locking device is actuated via this control disc, so that switching of the switch is blocked in each case. In this case, the tappet protrudes into the circuit breaker and forms the connection between the inner control plate and the outer locking device. For the interlocking of the two switches, two tappets are used which can be moved counter to one another in the longitudinal direction of the tappets. When the circuit breaker is switched on, its ta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H9/26H01H71/00
CPCH01H9/262
Inventor 克劳斯·克鲁埃尔米歇尔·赫斯哈拉尔德·克里格
Owner SIEMENS AG