Fuel Cell Modular Structure for Assembly Accuracy
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Solution Overview
Problem
The assembly and maintenance of fuel cells are hindered by the large number of components, leading to issues such as low assembly accuracy, long assembly time, poor replacement efficiency, and poor air tightness due to the complexity of stacking multiple layers.
Innovation Solution
A modular structure for fuel cells is introduced, featuring a membrane electrode assembly (MEA) with electrode plates and fixing elements that form a single cell module through through holes and corresponding fixing elements, allowing for improved assembly, replacement, and insulation, and enhanced air tightness with gaskets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If multiple layers of components are stacked to form single cell modules, then the fuel cell can achieve required power output, but assembly accuracy decreases and assembly time increases
Solution Approach 1:
The fuel cell stack is divided into multiple single cell modules, each comprising a membrane electrode assembly, electrode plates, and fixing elements. This segmentation allows for precise assembly of individual modules while achieving the required overall power output through stacking, thereby resolving the contradiction between power output and assembly accuracy.
Solution Approach 2:
The single cell modules are pre-assembled with all necessary components (membrane electrode assembly, electrode plates, gaskets, fixing elements) before being stacked together to form the complete fuel cell. This preliminary assembly ensures high precision for each module while reducing the complexity of final assembly, thus improving both assembly accuracy and efficiency.
2Power
If multiple layers of components are stacked to form single cell modules, then the fuel cell can achieve required power output, but assembly time increases
Solution Approach 1:
By segmenting the fuel cell into standardized single cell modules, the assembly process becomes more efficient. Each module can be assembled independently and then quickly stacked together, significantly reducing the overall assembly time while maintaining the required power output through the number of modules stacked.
Solution Approach 2:
Preparing single cell modules in advance with all components pre-positioned allows for rapid assembly of the complete fuel cell stack. This preliminary preparation eliminates the need for complex multi-step assembly during final stacking, thereby reducing assembly time while achieving the necessary power output.
3Power
If multiple layers of components are stacked to form single cell modules, then the fuel cell can achieve required power output, but air tightness deteriorates
Solution Approach 1:
Dividing the fuel cell into sealed single cell modules with integrated gaskets ensures that each module maintains its own air tightness. This segmentation approach prevents leakage paths that might occur in large-scale stacked structures, thereby maintaining reliability and air tightness while achieving the required power output through modular stacking.
4Power
If single cell modules are assembled with many layers of components, then the fuel cell can achieve required power output, but replacement efficiency decreases
Solution Approach 1:
By organizing the fuel cell into independent single cell modules, individual modules can be quickly replaced without disassembling the entire stack. This segmentation enables efficient replacement of faulty modules while maintaining the overall power output through the remaining functional modules, significantly improving replacement efficiency.
5Power
If single cell modules are assembled with many layers of components, then the fuel cell can achieve required power output, but repair rate decreases
Solution Approach 1:
The modular architecture allows for rapid identification and replacement of defective single cell modules, enabling quick repair operations. This segmentation significantly improves the repair rate while maintaining the required power output through the remaining functional modules during and after the repair process.
Data Source
AI summary
A modular structure of a fuel cell is provided, which includes a membrane electrode assembly (MEA), at least one first electrode plate, at least one second electrode plate, at least one first fixing element and at least one second fixing element. The first electrode plate is disposed at one side of the MEA and has at least one first through hole. The second electrode plate is disposed at the other side of the MEA and has at least one second through hole corresponding to the first through hole. The first fixing element and the second fixing element correspond to each other, and are joined to each other through the first through hole and the second through hole to fix the first electrode plate and the second electrode plate for the first electrode plate, the MEA and the second electrode plate to form a single cell module.