Server Chassis Fluid Connectors for Liquid Cooling Serviceability
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Solution Overview
Problem
Existing server chassis designs face challenges in accommodating various configurations and ensuring efficient installation, removal, and serviceability, particularly in liquid cooling systems, which are essential for high power density electronics, as they often require complex fluid management and lack modular and flexible connectivity options.
Innovation Solution
A server chassis architecture with front-accessible fluid connections and movable attachments, such as flexible hoses and rotating members, allows for blind mating with rear-facing connectors, enabling efficient installation and serviceability while supporting modular arrangements and high-reliability liquid cooling for high power density electronics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If liquid cooling systems are implemented for high power density electronics, then thermal management capability is improved, but device complexity and fluid management difficulty increase
Solution Approach 1:
The server chassis is divided into multiple server nodes (first server node, second server node, etc.), each with independent fluid connectors and cooling systems. This segmentation allows each node to be cooled independently, improving thermal management while maintaining manageable fluid connections through modular architecture.
Solution Approach 2:
The server rack is designed with universal fluid connectors that can accommodate multiple server nodes with different configurations. The common interface between server chassis and server rack allows the same rack infrastructure to serve various server types, reducing overall system complexity despite individual node complexity.
2Adaptability or versatility
If server chassis accommodate various server configurations, then adaptability is improved, but connector positioning and fluid management complexity increase
Solution Approach 1:
A common interface is established between server chassis and server rack, with standardized fluid connectors that work across different server configurations. This universal interface allows the same rack infrastructure to accommodate various server types and densities without requiring custom connector arrangements for each configuration.
Solution Approach 2:
The system allows dynamic configuration of server nodes within the chassis, where connectors are positioned to accommodate different server arrangements. The fluid management system can adapt to various server densities and configurations while maintaining proper connectivity through flexible connector positioning.
3Ease of operation
If efficient installation and serviceability are achieved, then ease of operation is improved, but system design complexity increases
Solution Approach 1:
Fluid connectors are pre-positioned on server nodes and server rack infrastructure before installation. This preliminary positioning allows for blind mating connections during installation, where connectors automatically align and connect without requiring manual intervention or complex alignment procedures, improving installation efficiency.
Solution Approach 2:
The system enables self-service installation and serviceability through front-accessible fluid connectors and blind mating mechanisms. Server nodes can be installed, removed, or serviced without requiring complex fluid disconnection procedures, as the design automatically manages fluid connections through self-aligning connectors and modular architecture.
4Ease of repair
If front-accessible fluid connections are implemented, then serviceability is improved, but connector reliability and leak prevention become more challenging
Solution Approach 1:
Flexible hoses serve as intermediaries between the front-accessible connectors and the internal fluid distribution system. These hoses allow front access for serviceability while maintaining sealed, reliable connections to the cooling system. The hoses act as flexible conduits that preserve fluid tightness while enabling front-side connector accessibility.
Solution Approach 2:
Blind mating connectors are designed with pre-positioned alignment features and self-latching mechanisms that ensure reliable, leak-free connections during front-accessible service operations. The connectors are pre-configured to automatically align and seal when mated, maintaining system reliability while enabling easy front-side access for maintenance.
Data Source
AI summary
A server chassis can include a first pair of connectors on a rear side of the server chassis arranged to face in a rear direction to engage with connectors of a server rack. Upon engaging of the connectors, the server chassis fluidly connects to a supply line and a return line of the server rack. The server chassis includes a second pair of connectors on a front side of the server chassis, to fluidly connect to a cooling system of a server node housed within the server chassis. The second pair of connectors are held to the server chassis with one or more movable attachments that enable coupling and decoupling of the second pair of connectors to the cooling system of the server node. Fluid channels fluidly connect the first pair of connectors to the second pair of fluid connectors.