Self-Passivating Metal Circuits for Submerged Short-Circuit Prevention
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Solution Overview
Problem
Electrical conductors in circuit devices face challenges in wet or submerged environments due to moisture, leading to short-circuits, and existing solutions like waterproof housings are costly and prone to failure.
Innovation Solution
Using self-passivating metals for electrical contacts and conductors that form a dielectric film when submerged, preventing electrical arcing and eliminating the need for waterproof enclosures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If electrical conductors are exposed to submerged ambient environment, then device complexity and fabrication cost are reduced, but short-circuit risk increases due to moisture
Solution Approach 1:
The electrical conductor is configured to self-passivate when exposed to the submerged ambient environment, automatically forming a protective dielectric coating without external intervention. This self-service mechanism eliminates the need for manual waterproofing treatments while maintaining reliability in wet environments.
Solution Approach 2:
The electrical conductor's surface properties change when exposed to moisture, transitioning from a conductive state to a passivated state with dielectric properties. This parameter change enables the conductor to adapt to the submerged environment, preventing short-circuits while remaining exposed.
2Reliability
If waterproof housings or couplings are used to protect electrical conductors, then short-circuit risk is reduced, but fabrication cost and manufacturing time increase
Solution Approach 1:
The protective function previously provided by external waterproof housings or couplings is extracted and integrated directly into the electrical conductor itself through self-passivation. This eliminates the need for separate protective components, reducing fabrication cost and manufacturing complexity while maintaining short-circuit protection.
Solution Approach 2:
The protective dielectric coating function is merged with the electrical conductor, creating a unified structure where the conductor serves both its primary electrical function and its protective function. This consolidation eliminates the need for separate waterproofing components, reducing overall device complexity and fabrication cost.
3Reliability
If waterproof housings or couplings are used to protect electrical conductors, then short-circuit risk is reduced, but material wear and degradation can still cause failure
Solution Approach 1:
The electrical conductor continuously self-passivates when exposed to moisture, automatically replenishing its protective dielectric coating. This self-service mechanism ensures long-term durability by preventing material wear and degradation that would affect fixed waterproof coatings, extending the service life of the device.
Solution Approach 2:
The electrical conductor proactively forms its protective dielectric coating before any damage can occur, continuously maintaining its protective barrier. This preliminary action prevents material degradation by addressing potential wear issues before they manifest as failures, extending device longevity.
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 circuit devices to operate in submerged environments without short-circuits, reducing fabrication costs and enhancing durability.
Implementation Method 1
self-passivating metals... When submerged in water, self-passivating metal materials develop a dielectric film that acts as an insulator
Implementation Method 2
develop a dielectric film that acts as an insulator between the self-passivating metal material and the fluid
Data Source
AI summary
One example includes a circuit device for use in a submerged ambient environment. The circuit device includes at least one input electrical contact configured to receive an electrical input. The circuit device also includes at least one output contact configured to provide an electrical output. The circuit device further includes at least one electrical conductor associated with an electrical function of the circuit device. Each of the at least one input electrical contact, the at least one output contact, and the at least one electrical conductor are formed at least in part from one of a variety of self-passivating metals. The at least one input electrical contact, the at least one output contact, and the at least one electrical conductor are exposed to the submerged ambient environment.