Fuel Cell Housing Partitioning Plates for Dimensional Adaptation
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Solution Overview
Problem
Existing fuel cell housing cases struggle to completely separate the fuel cell stack and boost converter due to variations in fuel cell dimensions, leading to potential mixing of foreign matters and lack of versatility.
Innovation Solution
A fuel cell housing case design featuring first and second partitioning plates with insertion portions and overlapping portions that adjust to accommodate variations in fuel cell stack dimensions, ensuring separation between the fuel cell stack and boost converter spaces while preventing foreign matter mixing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If partitioning plates with insertion portions for bus bars are provided to separate the fuel cell stack and boost converter, then foreign matter mixing is prevented, but positions of insertion holes vary among individual fuel cell stacks resulting in lack of general versatility
Solution Approach 1:
The partitioning plate is designed with a movable section that can shift position along the guide groove to accommodate variations in fuel cell stack dimensions. This dynamic adjustment capability allows the partitioning plate to maintain proper positioning and sealing regardless of dimensional variations, thereby preserving both separation effectiveness and general versatility.
Solution Approach 2:
The partitioning plate is divided into multiple sections: a fixed section, a movable section, and a guide groove. This segmentation allows different parts of the partitioning plate to perform different functions - the fixed section provides structural stability, the guide groove constrains movement, and the movable section adjusts to dimensional variations, resolving the contradiction between separation and versatility.
2Power
If bus bars extend from the boost converter to the fuel cell stack, then electric power transmission is enabled, but the boost converter and fuel cell stack cannot be completely separated
Solution Approach 1:
The partitioning plate acts as an intermediary element that selectively permits bus bar passage while blocking foreign matter. The insertion portions in the partitioning plate provide a controlled interface for electric power transmission through bus bars, while the surrounding sealing structure prevents foreign matter mixing, thus enabling both power transmission and separation.
Solution Approach 2:
The partitioning plate has different local properties: regions with insertion portions that are open to allow bus bar passage for electrical connection, and regions with sealing structures that are closed to prevent foreign matter mixing. This local differentiation enables simultaneous achievement of power transmission and separation functions.
3Adaptability or versatility
If the fuel cell stack has variations in dimension in stacking direction, then individual customization is achieved, but positions of insertion holes vary resulting in lack of standardization
Solution Approach 1:
The partitioning plate incorporates a movable section that can dynamically adjust its position along the guide groove to compensate for dimensional variations in the fuel cell stack. This dynamic mechanism absorbs the complexity of position variation, allowing the same partitioning plate design to work with stacks of different dimensions without requiring custom positioning for each case.
Solution Approach 2:
The guide groove structure provides a universal mounting interface that accommodates various fuel cell stack dimensions. The movable section of the partitioning plate, constrained by the guide groove, can adapt to different positions, making the same partitioning plate design universally applicable to multiple stack configurations without increasing overall system complexity.
Data Source
AI summary
A fuel cell housing case includes: a stack case including a first partitioning plate and a second partitioning plate that separate a space in which a fuel cell stack is to be housed from a space in which a boost converter is to be housed; and a pair of stack bus bars provided on both ends in the stacking direction of the fuel cell stack, wherein the first partitioning plate and the second partitioning plate respectively include: slits through which the respective stack bus bars are inserted; and overlapping portions that overlap each other.