Intelligent Fuse Holder with Solid-State Sensing for Predictive Maintenance
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Solution Overview
Problem
Existing circuit protection systems, such as those using fuses, fail to provide timely warnings of impending overload or device failure, leading to costly downtime and potential safety hazards, as they often require manual inspection and do not diagnose underlying issues.
Innovation Solution
An intelligent circuit protection system that employs solid-state sensing circuits to monitor current, voltage, and temperature, communicating with external devices to alert operators of potential issues and automatically reset upon fuse replacement, while also diagnosing failure modes using LED indicators and remote monitoring capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional fuses are used for circuit protection, then the load is protected from overload and short circuit damage, but the system cannot provide advance warning of impending failure and requires manual inspection
Solution Approach 1:
The patent implements feedback mechanisms through solid state sensing circuits that continuously monitor fuse conditions and provide real-time status information to external devices. The system detects parameters such as current, temperature, and fuse integrity, then communicates this information back to operators or control systems, enabling proactive maintenance scheduling and eliminating the need for manual inspection while maintaining reliable circuit protection.
Solution Approach 2:
The patent enables preliminary action by detecting early signs of fuse degradation or impending failure through continuous monitoring of electrical parameters and physical conditions. The system can identify trends such as increasing resistance, temperature changes, or current anomalies before the fuse actually opens, allowing operators to replace fuses during scheduled maintenance windows rather than experiencing unexpected downtime.
2Productivity
If fuses are replaced immediately after opening, then the load can be restored quickly, but the underlying cause of failure may not be identified and preventive measures not taken
Solution Approach 1:
The system provides feedback not only on fuse status but also on the conditions leading up to failure. By monitoring and recording parameters such as overcurrent magnitude, duration, temperature trends, and sequence of events, the system preserves diagnostic information that helps identify root causes. This feedback loop enables both quick restoration through automated detection and preventive maintenance through cause analysis.
Solution Approach 2:
The patent introduces an intermediary diagnostic system between the fuse and the operator. This intermediary captures and analyzes failure data, separating the restoration function (quick fuse replacement) from the diagnostic function (cause identification). The intermediary processes raw sensor data into meaningful diagnostic information, allowing simultaneous achievement of rapid load restoration and comprehensive failure analysis.
3Device complexity
If manual inspection of fuses is performed, then the system is simple and cost-effective, but it cannot provide real-time monitoring or predictive maintenance capabilities
Solution Approach 1:
The patent replaces manual mechanical inspection with automated electronic sensing and communication systems. Solid state sensors substitute for human operators, continuously measuring electrical and thermal parameters without physical contact. The mechanical act of opening panels and visually inspecting fuses is replaced by electronic monitoring circuits that detect fuse status and communicate it remotely, adding predictive capability while maintaining system simplicity through modular design.
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 system prevents catastrophic failures by allowing proactive replacement of components, reduces downtime, enhances safety through remote monitoring and diagnosis, and provides detailed diagnostic information for troubleshooting.
Implementation Method 1
a solid state sensing circuit is shunted when a fuse is present. When the fuse opens, the solid state circuit is powered and provides a solid state switch output via optical coupling with the sense circuitry.
Implementation Method 2
provides a solid state switch output via optical coupling with the sense circuitry
Data Source
AI summary
An intelligent circuit protection system and method for automating component replacement and providing information to a user or operator about a load for circuit protection. The circuit protection method includes sensing current and voltage across a fuse protecting a load; sending at least one signal indicative of the current and voltage; and using the at least one signal to determine if the load is operating normally.