Safety module for electrical equipment and method of operation thereof

By introducing a safety module into electrical equipment to monitor the switch status and output a cut-off signal in case of a fault, the high overhead and high cost problems caused by redundant cut-off components in the prior art are solved, and a reliable voltage cut-off with a high safety level is achieved.

CN122295631APending Publication Date: 2026-06-26TURCK HOLDING GMBH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-25
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

In the prior art, redundant disconnection components lead to high overhead, high cost, large space requirements and large power loss of electrical equipment, and it is difficult to ensure reliable voltage disconnection under single fault conditions.

Method used

Design a safety module, including a device power input terminal, a device power output terminal, a switch module, and a device safety logic module. The device safety logic module monitors the switch status and outputs a cut-off signal in case of a fault. Combined with IO-Link connection, a redundant cut-off path is realized.

Benefits of technology

It achieves reliable voltage interruption under single fault conditions, reduces equipment costs and space requirements, while maintaining a high level of safety and reducing the number of interruption components.

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    Figure CN122295631A_ABST
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Abstract

The present invention relates to a safety module (2) for electrical equipment (50), particularly for field equipment, the safety module comprising: a power input terminal (“Pin 2”, “Pin 5”) for electrical connection to an electrical distribution device (3); a power output terminal (7, 8) for connection to the electrical equipment (50); a switch module (6) for switching the electrical connection between the power input terminal (“Pin 2”, “Pin 5”) and the power output terminal (7, 8); a safety logic module (4) for controlling the switch module (6); and a device interface (“Pin 1”, “Pin 3”, “Pin 4”) for data connection between the safety logic module (4) and the distribution device (3); wherein the safety logic module (4) is configured to: monitor the switching state of the switch module (6); and, when the switch module (6) is in a fault state, output a cut-off signal to the electrical distribution device (3) through the device interface (“Pin 1”, “Pin 3”, “Pin 4”).
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Citation Information

Patent Citations

  • Safety shutdown device for a mechatronic component

    DE102020007808A1

  • IO-Link-Adapter

    DE102020112985A1

  • industrial plant

    DE102021114855A1