Fuel Cell Housing Assembly with Integrated Hollow Profile
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Solution Overview
Problem
Existing fuel cell stack designs face challenges in assembly complexity, torsion stability, and the need for multiple components, which complicates the interconnection of end plates and side plates, leading to potential weakening and laborious assembly processes.
Innovation Solution
A housing assembly featuring a hollow profile-like body that encompasses stacked fuel cells, with a fastening mechanism to connect end plates, reducing the number of components and simplifying assembly, while providing axial force transfer and gas-tight sealing, thereby enhancing stability against torsion and lateral loads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If multiple separate side plates and coupling pins are used to form a closed casing, then the housing can provide structural support, but the assembly becomes complex and time-consuming
Solution Approach 1:
The patent merges multiple separate side plates and coupling pins into a single integrated hollow profile body. This profile body is formed as one piece that provides the same structural support function while eliminating the need for multiple components and their complex interconnections, directly resolving the contradiction between structural strength and assembly complexity
2Ease of manufacture
If multiple separate components are interconnected with many fastening elements, then the housing can be assembled, but the assembly process becomes laborious and time-consuming
Solution Approach 1:
By combining multiple fastening elements and side plate components into a single hollow profile body, the patent reduces the number of assembly steps and fastening operations required. The profile body is designed to be installed as one component, significantly reducing assembly time and labor while maintaining ease of manufacture through standardized integration
3Force
If coupling pins and coupling portions are used to transfer tension forces, then the end plates can be interconnected, but the coupling portions form weakening spots subject to point loading
Solution Approach 1:
The patent replaces the discrete coupling pin and coupling portion connection system with an integrated hollow profile body that distributes tension forces continuously along its structure. This eliminates the localized stress concentrations and weakening spots created by point-to-point coupling connections, thereby maintaining force transfer capability while improving structural integrity
Data Source
AI summary
The present invention relates to a housing assembly for at least two fuel cells, comprising:a hollow profile-like body (12) extending in an axial direction (z) and being adapted to laterally encompass at least two fuel cells stacked on one another in axial direction (z), anda fastening mechanism to interconnect the body (12) with at least one end plate (18, 28) adapted to support the at least two fuel cells.