Pressure Distribution Enclosure for Deep-Water Electronics
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Solution Overview
Problem
Deep-water exploration is hindered by the challenge of protecting electronic components from extreme high pressures, which requires expensive and bulky custom designs for deep-water vessels.
Innovation Solution
A novel enclosure system that uses a pressure distribution structure with cavities of varying volumes to distribute pressure across electronic components, allowing standard off-the-shelf electronics to operate in high-pressure environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If standard off-the-shelf electronics are used in deep-water vessels, then cost is reduced and availability is improved, but the electronics cannot withstand extreme high pressures
Solution Approach 1:
The enclosure is divided into multiple compartments, each containing cavities of varying volumes tailored to specific electronic components. This segmentation allows each component to be protected according to its individual pressure tolerance requirements, enabling the use of standard off-the-shelf electronics while maintaining reliability in high-pressure environments.
Solution Approach 2:
Different regions of the enclosure provide different levels of pressure protection through cavities of varying volumes. Components with lower pressure tolerance are placed in larger cavities that provide greater pressure relief, while more robust components can tolerate smaller cavities. This local differentiation of protective qualities allows standard electronics to survive deep-water pressures.
2Reliability
If custom-designed pressure protection structures are used, then pressure resistance is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The enclosure structure serves multiple functions simultaneously: it provides the structural housing for electronics, implements pressure distribution through integrated cavities, and offers component-specific protection. This multi-functionality reduces the need for separate protective structures, thereby reducing overall device complexity while maintaining effective pressure resistance.
Solution Approach 2:
The cavity structure automatically adjusts pressure distribution based on component placement and cavity volume, eliminating the need for complex active pressure control systems. The geometry of the cavities themselves provides the pressure relief mechanism, making the system self-regulating and reducing overall complexity.
3Device complexity
If uniform pressure distribution is applied to all components, then structural simplicity is maintained, but components with different pressure tolerances are either over-protected or under-protected
Solution Approach 1:
The enclosure implements non-uniform pressure distribution by providing cavities of different volumes at different locations within the structure. Each cavity's volume is specifically designed to match the pressure tolerance of the component it protects, ensuring optimal protection without over-engineering any particular region. This local customization resolves the contradiction between structural simplicity and component-specific protection requirements.
Data Source
AI summary
Embodiments include enclosures for protecting electronics such as circuit board and battery assemblies in high-pressure environments. Customized pressure distribution structures are positioned around the electronics. The pressure distribution structures include cavities that are sized to distribute pressure across the electronics in a predetermined manner based on known pressure tolerances of components or portions of the electronics. The pressure distribution structures may include various features such as vias for enhancing thermal conductivity. The enclosure may be sealed and surrounded by an envelope. Methods for manufacturing such enclosures are disclosed.