Hermetic RESS Enclosure With Separate Structural Housing
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Solution Overview
Problem
The integration of load-bearing and hermetic sealing functions in rechargeable energy storage system enclosures presents design and manufacturing challenges, as existing enclosures must meet both structural and sealing requirements, complicating the design and increasing complexity.
Innovation Solution
The enclosure decouples hermetic sealing and structural functions, with a hermetic sealing enclosure designed to provide a hermetic seal and a separate structural housing component meeting load-bearing requirements, using materials like fabric, metal, composite materials, and gas vents to manage pressure and ensure safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single enclosure structure is used to provide both structural support and hermetic sealing, then both functions are integrated, but design complexity and manufacturing difficulty increase
Solution Approach 1:
The enclosure is divided into two separate components: a structural housing component that provides load-bearing support and a hermetic sealing enclosure that provides sealing. This segmentation allows each component to be optimized for its specific function, reducing overall design complexity while maintaining sealing reliability.
Solution Approach 2:
The hermetic sealing function is extracted from the structural housing and implemented as a separate sealing enclosure. This extraction eliminates the need for the structural housing to simultaneously meet both structural and sealing requirements, thereby reducing design complexity and manufacturing difficulty.
2Strength
If a robust structural housing is used to meet load-bearing requirements, then structural strength is improved, but weight increases
Solution Approach 1:
By separating the structural housing from the hermetic sealing enclosure, the load-bearing requirements are placed solely on the structural housing, allowing it to be optimized for strength-to-weight ratio. The sealing enclosure can use lighter materials since it does not need to bear structural loads.
Solution Approach 2:
The hermetic sealing enclosure can utilize flexible or thin-walled materials that provide effective sealing without the weight penalty of thick structural walls. The structural housing independently handles all load-bearing requirements.
3Reliability
If hermetic sealing is implemented with rigid structures, then sealing effectiveness is improved, but adaptability and ease of manufacture decrease
Solution Approach 1:
The hermetic sealing enclosure can be made from flexible materials such as fabric, rubber, or polymer that are easier to manufacture and assemble. These flexible materials can conform to various shapes and provide effective sealing without requiring complex rigid structures.
Solution Approach 2:
The sealing enclosure may utilize composite materials that combine flexibility with sealing effectiveness. These composite materials can be easier to manufacture and install while maintaining hermetic sealing performance.
4Weight of moving object
If the hermetic sealing enclosure is made from flexible materials, then weight is reduced and manufacturing is simplified, but structural support capability is compromised
Solution Approach 1:
The system is segmented into a structural housing component that independently provides all necessary structural support and load-bearing capability, and a separate hermetic sealing enclosure made from lightweight flexible materials. This segmentation allows the sealing enclosure to be optimized for weight and manufacturing ease without compromising structural strength.
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 decoupled design simplifies manufacturing, reduces weight, and enhances safety by allowing for lighter structural components and flexible materials that provide effective sealing and pressure management, while maintaining protection during crashes and electrical insulation.
Implementation Method 1
The hermetic sealing enclosure includes gas vents that are configured to release pressure from the hermetic sealing enclosure when pressure within the hermetic sealing enclosure is greater than a predetermined pressure
Data Source
AI summary
An enclosure for a rechargeable energy storage system (RESS) includes a hermetic sealing enclosure and a structural housing component configured to support the hermetic sealing enclosure. The hermetic sealing enclosure is arranged on the structural housing component. The hermetic sealing enclosure is configured to house the RESS and provide a hermetic seal.