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Control circuit for contactor, and control method thereof

A technology for controlling circuits and contactors, applied in circuits, relays, electrical components, etc., can solve the problems of troublesome update and maintenance, unable to provide safety guarantee, and difficult to achieve safe stop of contactors.

Pending Publication Date: 2021-06-29
SCHNEIDER ELECTRIC IND SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, on the one hand, this kind of software requires certification, which makes software update and maintenance troublesome; on the other hand, only relying on software to monitor digital signals and realize the breaking of contactors is also difficult to achieve when the software itself fails Safe stop of contactors, thus no higher safety guarantee

Method used

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  • Control circuit for contactor, and control method thereof
  • Control circuit for contactor, and control method thereof
  • Control circuit for contactor, and control method thereof

Examples

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Embodiment Construction

[0042] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the drawings, it should be understood that the disclosure may be embodied in various forms and should not be construed as limited to the embodiments set forth herein; A more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are for exemplary purposes only, and are not intended to limit the protection scope of the present disclosure.

[0043] An embodiment of the present disclosure provides a control circuit for a contactor, the concept of which is that in addition to outputting a first breaking control signal to a coil driver driving a contactor coil through a first controller (such as a microcontroller) , also additionally add a second controller (such as a hardware controller), which o...

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PUM

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Abstract

The embodiment of the invention relates to a control circuit for a contactor, and a control method thereof. The control circuit includes: a pulse converter configured to convert a turn-on control signal into a continuous pulse signal; a first controller configured to generate a first breaking control signal at a first time in response to detecting disappearance of the continuous pulse signal received from the pulse converter; a second controller configured to generate a second breaking control signal at a second time in response to detecting disappearance of the continuous pulse signal received from the pulse converter, where the first time is earlier than the second time; and a coil driver configured to cut off the current of the excitation coil according to the received first breaking control signal, and further cut off the current of the excitation coil according to the second breaking control signal under the condition that the current is not cut off according to the first breaking control signal, so as to realize the breaking of the main contact.

Description

technical field [0001] Various embodiments of the present disclosure relate to a contactor, and more particularly relate to a control circuit of the contactor and a control method thereof. Background technique [0002] A contactor is an electrical appliance that uses a coil to flow current to generate a magnetic field to close the contacts to control the load. The working principle of the contactor is: when the coil of the contactor is energized, the coil current will generate a magnetic field, and the generated magnetic field will cause the static iron core to generate electromagnetic attraction, thereby attracting the iron core, thereby realizing the closure of the main contact of the contactor; when the coil When the power is off, the electromagnetic attraction disappears, and the armature is released under the action of the release spring to disconnect the main contact. [0003] The safe stop of the contactor is an important function of the load control of the contactor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H47/00
CPCH01H47/002H01H50/045H01H47/005H01H47/22
Inventor 双兵D·拉纳V·热弗鲁瓦
Owner SCHNEIDER ELECTRIC IND SAS