Floating Manifold Assembly for Blind-Mate Liquid Cooling
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Solution Overview
Problem
Conventional manifold mounts in liquid-cooling systems for servers are rigid, leading to increased insertion forces and seal damage due to misalignments during blind mating, complicating service operations and extending downtime.
Innovation Solution
A floating manifold assembly with controlled multi-axis float capabilities, allowing horizontal and vertical alignment of liquid-cooling fittings through a design featuring a manifold base, body, and top assembly with spring-loaded hooks and clearances, enabling tool-less service and seal protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the manifold is rigidly fastened to the chassis, then the mounting structure is simple and stable, but insertion forces increase and seals can be damaged during blind mating due to misalignments
Solution Approach 1:
The manifold assembly incorporates a floating mount mechanism that allows controlled movement in multiple directions (horizontal, vertical, and angular) relative to the chassis. This dynamic capability enables the manifold to self-align with mating fittings during insertion, reducing peak insertion forces and preventing seal damage while maintaining a simple overall structure.
2Ease of operation
If the manifold is rigidly fastened to the chassis, then the mounting structure is simple, but service operations become complicated and downtime increases
Solution Approach 1:
The mounting system is divided into separate components: a fixed chassis mount and a floating manifold assembly. This segmentation allows the manifold to be independently removed and replaced without affecting the chassis structure, enabling quick service operations and reducing downtime while maintaining structural simplicity.
3Reliability
If the manifold body is fixed relative to the manifold base, then the structure is simple and stable, but tolerance stack-up and misalignments cause stubbing and cross-loading during blind mating
Solution Approach 1:
The mounting structure incorporates controlled degrees of freedom that allow the manifold body to move relative to the manifold base in horizontal, vertical, and angular directions. This dynamic capability absorbs tolerance stack-up and misalignments during blind mating, protecting connectors from stubbing and cross-loading while maintaining reasonable structural complexity.
4Ease of operation
If the manifold assembly is designed for tool-less removal, then service operations are simplified, but the mounting structure becomes more complex
Solution Approach 1:
The mounting structure incorporates self-aligning and self-latching features that enable tool-less installation and removal of the manifold assembly. The floating mount mechanism automatically positions the manifold during insertion, and the design allows manual release without tools, simplifying service operations while the added complexity is offset by the elimination of tool requirements.
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
Reduces insertion forces and protects seals by self-aligning fittings during blind mating, improving service efficiency and reducing leakage risks in liquid-cooling systems.
Implementation Method 1
a pair of sliding plates biased by springs seated in the upper-cover base so as to urge the sliding plates toward opposite faces of the manifold body
Data Source
AI summary
A manifold assembly mounts within an electronic equipment chassis to couple liquid-cooling fittings while accommodating blind mating. The assembly includes a manifold base with upstanding posts, a manifold body captured between the base and a top assembly, and at least one side-port coupling interface configured to accept a mating fitting. The manifold body has through-holes receiving the posts, and the top assembly retains the manifold body while permitting controlled float relative to the base in a horizontal direction and in a vertical direction within an enclosure formed by the base and the top assembly. The controlled float absorbs manufacturing and assembly tolerances, reducing insertion force and protecting sealing surfaces during engagement.