Retrofit Connector Enclosure for Arc and Overheat Detection
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Solution Overview
Problem
Electrical systems face challenges in detecting arcing and overheating conditions at connection points due to insufficient proximity of detection circuits, leading to potential fires and safety hazards.
Innovation Solution
The implementation of retrofit enclosures with sensors and controllers that measure electrical and physical parameters, such as temperature and noise, to detect overheating and arcing conditions, and trigger responsive actions like shutdown signals or alarms, powered by inductive or photovoltaic power sources, and made of fire-resistant materials to suppress fires.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If detection circuits are placed at a distance from connection points, then device complexity is reduced, but detection precision and response time deteriorate
Solution Approach 1:
The patent places detection circuits inside enclosure assemblies that fit over connector housings, nesting the detection system within the existing connector structure. This allows sensors to be positioned in close proximity to connection points without requiring separate external detection systems, thereby maintaining detection precision while integrating seamlessly into the existing device architecture.
2Reliability
If retrof fit enclosures with active electronics are installed, then detection capability is improved, but fire safety risk increases if electronics fail
Solution Approach 1:
The enclosure assembly includes fire-resistant material and fire suppression features built into the structure before installation. This pre-cushioning approach ensures that if active electronics fail or generate heat, the fire-resistant barriers are already in place to prevent fire spreading to surrounding areas, addressing the safety risk before it can materialize.
3Measurement precision
If multiple sensors and active electronics are integrated into the enclosure, then detection accuracy is improved, but device complexity and power requirements increase
Solution Approach 1:
The controller within the enclosure is designed to perform multiple functions: it processes signals from various sensors (temperature, light, acoustic, electrical), determines unsafe conditions, triggers alarms, and can communicate with external systems. This multi-functionality consolidates what would otherwise require separate dedicated circuits for each function, thereby improving detection capabilities while limiting the increase in overall device complexity.
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
Enables timely detection and response to unsafe conditions, reducing the risk of fires and ensuring safety by providing fast shutdowns and notifications, while minimizing false positives and negatives.
Implementation Method 1
The power supply may be configured to be inductively coupled to a power line coupled to a mechanical connector disposed within the enclosure. The power supply may draw operational power from an alternating current signal superimposed on the power line
Implementation Method 2
In addition to or instead of an inductively coupled power supply, the enclosure may comprise a photovoltaic power supply and/or a battery configured to provide operational power to devices comprised by the enclosure
Data Source
AI summary
Systems and methods are described herein for an electrical system comprising a mechanical connector and a retrofit enclosure configured to be disposed over the connector. The adapter may comprise a controller configured to maintain safe provision of power, such as by detecting a potential overheating and/or arcing conditions. For example, the controller may detect changes in temperature, voltage, current and/or acoustic noise associated with the mechanical connector, and take responsive action.