Submergence Recognition Circuit for Real-Time Liquid Detection
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Solution Overview
Problem
The existing submergence labels used in electronic devices are too large and spatially constrained, making it difficult to determine defects when a conductive liquid is introduced into areas not covered by the label, leading to challenges in identifying internal circuit damage and increasing repair costs.
Innovation Solution
An electronic device equipped with a submergence recognition circuit, including a first pole connected to a power control circuit and a second pole connected to ground, which allows the processor to sense current flow and determine if the area has been submerged, enabling real-time detection and identification of conductive liquid introduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a submergence label is used to detect conductive liquid introduction, then the detection capability is provided, but the label size is too large to be attached to the circuit board and spatial constraints are violated
Solution Approach 1:
The patent replaces the mechanical/visual submergence label system with an electrical sensing system. The submergence sensing circuit uses electrical current flow detection through conductive liquid to identify submergence, eliminating the need for large physical labels while maintaining detection capability.
Solution Approach 2:
The patent changes the detection parameter from visual label discoloration to electrical current measurement. By measuring the current flowing through the submergence sensing circuit when conductive liquid is present, the system achieves detection without requiring large physical space for labels.
2Ease of manufacture
If a submergence label is attached to limited areas, then the label can be placed on the device, but defects in areas not covered by the label cannot be determined
Solution Approach 1:
The submergence sensing circuit is integrated into the power control circuit that already controls power supply to multiple components. This universal power control circuit serves both its original power management function and the additional submergence detection function across the entire device, eliminating the need for separate labels in multiple locations.
Solution Approach 2:
The patent merges the submergence sensing function with the existing power control circuit. The same circuit that controls power to various components also detects submergence by sensing current flow, consolidating multiple functions into a single integrated system.
3Reliability
If a submergence label is used, then submergence can be detected, but repair costs increase due to inability to identify internal circuit damage
Solution Approach 1:
The submergence sensing circuit provides real-time feedback about conductive liquid introduction and its location. By continuously monitoring current flow through different portions of the circuit, the system identifies exactly where submergence occurred, enabling targeted repair efforts and reducing overall repair costs.
Solution Approach 2:
The submergence sensing circuit acts as an intermediary between the conductive liquid intrusion and the damage assessment process. It detects the presence and location of conductive liquid before it causes extensive internal circuit damage, providing early warning information that facilitates easier repair.
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
This solution allows for easy determination of internal circuit damage and reduces repair costs by enabling real-time identification of submerged areas using a smaller and more versatile submergence sensing circuit, overcoming structural and cost constraints associated with traditional labels.
Implementation Method 1
sense a current flowing from the submergence recognition circuit to the power control circuit... determine whether an area in which the submergence recognition circuit is disposed has been submerged, based on the sensing result of the current
Data Source
AI summary
Disclosed in various embodiments are an electronic device, the electronic device comprising: a power control circuit for controlling power supplied to at least one component of the electronic device; at least one submergence recognition circuit including a first pole connected to at least one port of the power control circuit, and a second pole connected to a ground; a processor electrically connected to the power control circuit; and a memory electrically connected to the processor, wherein the memory can be configured, during execution thereof, to store instructions for allowing the processor to: control the power control circuit such that power is supplied to the submergence recognition circuit; sense a current flowing from the submergence recognition circuit to the power control circuit; and determine, on the basis of the sensing result of the current, whether an area in which the submergence recognition circuit is arranged has been submerged.