Surge Protector Bypass Switching for Signal Path Continuity
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Solution Overview
Problem
Existing surge protection devices in IT and communications systems often fail to prevent signal path failure due to overload or aging, causing either short-circuit or signal interruption, leading to data loss.
Innovation Solution
A mechanical tripping device is implemented to bypass the surge protection circuit, using a conductor track connection that melts at a predetermined current, and a mechanical actuating device to open or close switching contacts, allowing the signal to bypass the surge protection components and divert fault currents to ground, thereby preventing signal path failure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional surge protection components are used, then overload protection is provided, but signal interruption and data loss occur when components fail due to aging or overload
Solution Approach 1:
The bypass path is pre-configured and ready before any failure occurs. The switching contacts are positioned to enable quick redirection of signal flow. The conductor track connection device is pre-installed to provide a ready-made disconnect mechanism. When failure is detected, the system can immediately activate the bypass path without needing to create it during the failure event.
Solution Approach 2:
The electrical parameters of the circuit are changed by transitioning from using the surge protection path to using the bypass path. The impedance, current flow, and signal routing parameters are modified by closing the switching contacts and melting the conductor track connection device, thereby changing the circuit's operational state to prevent information loss.
2Reliability
If surge protection components are installed in series with the signal path, then protection is achieved, but device complexity increases with multiple current paths and switching mechanisms
Solution Approach 1:
The surge protection function and bypass capability are merged into a single integrated device. Both the surge protection components and the bypass path with switching contacts are combined in one housing, allowing the device to provide both protection and fail-safe functionality without requiring separate components. This reduces overall system complexity while maintaining reliability.
3Reliability
If mechanical tripping device with conductor track connection is used to bypass surge protection, then signal path continuity is maintained, but manufacturing precision requirements increase for soldered connections and melting characteristics
Solution Approach 1:
The conductor track connection device utilizes phase transition (melting) of the soldered or conductive adhesive connections. When excessive current flows through the conductor track, the connection material melts and transitions from solid to liquid state, creating a physical break in the circuit. This automatic phase change provides a simple, reliable disconnect mechanism that responds to overload conditions without requiring complex control systems.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively prevents signal path failure by diverting currents and maintaining signal integrity even when surge protection components fail, allowing for seamless operation and easy replacement of faulty parts without interrupting the signal.
Implementation Method 1
the conductor track connection device can be melted through the soldered connection or conductive adhesive connection if the predetermined tripping current is exceeded
Implementation Method 2
a displaceable mechanical actuating device for opening the first switching contact device in the non-tripped state and for closing the first switching contact device in the tripped state
Data Source
AI summary
The invention provides a surge protector, in particular for information technology and/or communications technology systems, which is equipped with: a housing (ST, BT; GT); a first input terminal (E1) for applying a first external voltage signal; a second input terminal (E2) for applying a second external voltage signal; a first output terminal (A1) for outputting the first external voltage signal; a second output terminal (A2) for outputting the second external voltage signal; a surge protection circuit device (G1, R1, Z1; G1, G2, R1, R2, Z1; G1, G2, R1, R2, Z1, Z2), at least part of which is provided on a circuit board (P) located in the housing (ST, BT; G); a first current path (ST1) for conducting the first external voltage signal from the first input terminal (E1) to the first output terminal (A1) bypassing the surge protection circuit device (G1, R1, Z1; G1, G2, R1, R2, Z1; G1, G2, R1, R2, Z1, Z2); a second current path (ST2) for conducting the second external voltage signal from the second input terminal (E2) to the second output terminal (A2) bypassing the surge protection circuit device (G1, R1, Z1; G1, G2, R1, R2, Z1; G1, G2, R1, R2, Z1, Z2); a third current path (ST3) for conducting the first external voltage signal from the first input terminal (E1) to the first output terminal (A1) via the surge protection circuit device (G1, R1, Z1; G1, G2, R1, R2, Z1; G1, G2, R1, R2, Z1, Z2); a first switching contact device (F1) for opening and closing the first current path (ST1); a first electrical surge protection component (G1) which is connected between the first and third current paths (ST1, ST3); and a mechanical tripping device (AU; B, S, EF, SL) for opening the first switching contact device (F1) when in a non-tripped state and for closing the first switching contact device (F1) in order to interrupt the third current path (ST3) when in a tripped state at a tripping current in the surge protection circuit device (G1, R1, Z1; G1, G2, R1, R2, Z1; G1, G2, R1, R2, Z1, Z2) caused by exceeding a nominal parameter and/or by degradation of the components.