Floating Connector Aligns Cell Stack Fittings in Confined Fuel Cell Spaces
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Solution Overview
Problem
In fuel cell installations with limited access, aligning and connecting electrical and fluid fittings with the support structure is difficult due to restricted space, making it challenging to secure these connections without tool access.
Innovation Solution
A support structure with an interfacing structure that allows the cell stack assembly fittings to float in a plane relative to the support structure during installation, enabling alignment and connection of fittings and connectors without direct access, using movable plates and interlocking features for precise alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the cell stack assembly is installed with one end plate inserted first into the support structure, then the installation direction is established along its length, but the electrical and fluid connections become difficult to achieve due to limited access space
Solution Approach 1:
The patent makes the connector movable relative to the support structure, allowing it to float in a plane during installation. This dynamic adjustment capability enables the connector to self-align with the fitting on the end plate even when access space is limited, resolving the contradiction between ease of connection and restricted access area.
Solution Approach 2:
The floating connector automatically aligns itself with the fitting through its ability to move within the plane during insertion. This self-aligning mechanism eliminates the need for manual positioning or complex alignment procedures, allowing connections to be made easily despite limited access space.
2Ease of operation
If the fitting and connector are fixed in position relative to the support structure, then the structural stability is maintained, but the alignment and connection become difficult without tool access
Solution Approach 1:
The connector is designed to float in a plane relative to the support structure during installation, providing dynamic adjustment capability for easy alignment. Once connected, the assembly maintains structural stability, thus achieving both ease of alignment and connection reliability.
3Ease of repair
If the cell stack assembly is designed for easy removal from the support structure, then the maintenance accessibility is improved, but the connection security during operation may be compromised
Solution Approach 1:
The floating connector design allows for easy insertion and removal by maintaining alignment capability throughout the movement process. The connector can freely adjust its position during installation and removal operations, then secures reliably when in the connected state, achieving both ease of repair and connection security.
Data Source
AI summary
A fuel cell installation includes a support structure and a cell stack assembly that is removably insertable into the support structure from an uninstalled position to an installed position during an installation procedure. The cell stack assembly includes a fitting. An interfacing structure is mounted on one of the support structure in the cell stack assembly. The interfacing structure carries a connector that is configured to receive the fitting in interconnected relationship. At least one of the fitting and the connector floats in a plane relative to the support structure during the installation procedure. In operation, the fitting engages the connector when the cell stack assembly is inserted into the support structure. The fitting is repositioned relative to the connector to ensure that the fitting and connector are aligned with one another and connected upon installation. Related methods are disclosed.