Power Distribution Assembly Fault Detection via Deformable Sense Layers
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Solution Overview
Problem
Conventional fault detection systems in power distribution assemblies require additional components like thin trace elements, increasing costs and limiting material choices, and are often limited to detecting a single fault condition, necessitating multiple layers for comprehensive fault detection.
Innovation Solution
A power distribution assembly with a deformable material layer and a conductive sense layer that breaks conductivity upon deformation, coupled with a fault detection circuit to monitor and respond to electrical faults, eliminating the need for thin trace elements and enabling detection of multiple fault conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional fault detection systems use additional components like thin trace elements, then fault detection capability is improved, but manufacturing complexity and cost increase
Solution Approach 1:
The patent extracts and eliminates the thin trace element component from conventional fault detection systems. Instead of using separate thin trace elements embedded in the deformable material layer, the invention uses the deformable material layer itself (made of epoxy, silicone, or polyurethane) to directly detect faults through its electrical properties, thereby reducing manufacturing complexity while maintaining detection capability
Solution Approach 2:
The deformable material layer serves multiple functions: it provides mechanical deformation in response to thermal expansion from faults, acts as the sensing medium through its changing electrical properties, and eliminates the need for separate thin trace elements. This multi-functionality reduces both component count and manufacturing complexity
2Reliability
If conventional fault detection systems use multiple layers for comprehensive fault detection, then fault detection coverage is improved, but device complexity increases
Solution Approach 1:
The single deformable material layer is designed to detect multiple fault conditions (over-temperature, arcing, short circuits) through its unified electrical properties. The material's dielectric constant and electrical conductivity change in response to various fault types, allowing one layer to replace multiple specialized detection layers
Solution Approach 2:
The invention monitors changes in electrical properties (dielectric constant, conductivity, capacitance, impedance) of the deformable material layer to detect different fault conditions. By analyzing parameter changes rather than using multiple physical layers, the system achieves comprehensive fault detection with reduced complexity
3Measurement precision
If thin trace elements are used in fault detection systems, then sensitivity to electrical faults is improved, but material selection is limited
Solution Approach 1:
The invention maintains high sensitivity by monitoring electrical parameter changes (dielectric constant, conductivity, capacitance, impedance) of the deformable material layer. This approach preserves detection sensitivity while allowing versatile material selection from epoxy, silicone, and polyurethane, each with different thermal and electrical properties suitable for various applications
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
Reduces manufacturing complexity and cost while providing comprehensive fault detection, allowing for rapid identification and remediation of electrical faults, enhancing safety and longevity of components in power distribution systems.
Implementation Method 1
the deformable material layer configured to deform in response to a triggering event
Implementation Method 2
a conductive sense layer positioned on the deformable material layer, opposite the at least one wall of the chassis, wherein the sense layer breaks conductivity in response to the deformation of the deformable material layer
Data Source
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AI summary
A power distribution assembly comprising a chassis (51) having at least one wall (56, 57, 58, 59), a deformable material layer (70, 170, 270, 276) positioned on the at least one wall (56, 57, 58, 59) of the chassis and configured to deform in response to a triggering even. The power distribution assembly further comprising a conductive sense layer (72, 172, 272) positioned on the deformable material layer (70, 170, 270, 276) opposite the at least one wall (56, 57, 58, 59) of the chassis (51).