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Method and device for operating electromechanical power distribution relay

A relay, electromechanical technology, applied in the field of power distribution relay conversion and protection of contact switching power distribution relay, can solve problems such as unpopularity, and achieve the effect of avoiding chattering

Inactive Publication Date: 2019-01-22
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Possibly, adjacent contacts in non-switching relays can even vibrate due to the said dithering oscillations, which can lead to undesired side effects

Method used

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  • Method and device for operating electromechanical power distribution relay
  • Method and device for operating electromechanical power distribution relay

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] figure 1 Shown is a switching system 1 for switching an electrical load circuit 2 provided with at least one V The load voltage source 3 and the electrical load 4.

[0031] The load circuit 2 can be opened or closed by means of an electromechanical distribution relay 5 by, for example, connecting the load circuit via an armature 51 to an armature contact 52 and a switching contact 53 . The power distribution relay 5 also has an electromagnet 54 which is arranged in the vicinity of the at least partially soft-magnetic armature 51 for magnetically attracting (anziehen) when the electromagnet 54 is activated. ) of the armature. The armature 51 is pivotable and is loaded by spring force with a spring 55 for pulling the armature contact 52 away from the switch contact 53 when the electromagnet 54 is deactivated. By activating the electromagnet 54 , the armature contact 52 can be moved in the direction of the switching contact 53 and pressed against it.

[0032] The elect...

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PUM

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Abstract

The invention relates to a method for switching a power distribution relay for opening and / or closing a load circuit (2), the method having the following steps: operating a coil of an electromagnet (54) of a power distribution relay (5) by a switching power, to trigger a switching process of the power distribution relay (5); and operating the coil of the electromagnet (54) of the power distribution relay (5) by a holding power greater than the switching power after switching the power distribution relay (5), to maintain the power distribution relay in a switched state.

Description

technical field [0001] The invention relates to an electromechanical power distribution relay, in particular to a measure for switching a power distribution relay with protection of contacts. In particular the invention relates to the switching of electromechanical power distribution relays so as to avoid contact erosion. Background technique [0002] Electromechanical relays are used to switch heavy loads, the switching circuit being galvanically separated from the load circuit. An electromechanical relay has an electromagnet in the switching circuit, which is coupled to the armature in such a way that the position of the armature is changed by energizing the electromagnet. The armature is coupled to a switching element or is part of a switching element in the load circuit for opening or for closing the load circuit. [0003] Electromechanical relays are prone to contact bounce during the switching process. "Chattering" means that the relay contacts do not switch on or o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H47/32H01H47/22H01H1/50
CPCH01H1/50H01H47/22H01H47/32H01H2001/506H01H47/325
Inventor K.C.利比希M.科伯施泰特P.布劳恩
Owner ROBERT BOSCH GMBH