Server Connector Alignment Mechanism for High-Density Rack Trays
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Solution Overview
Problem
The increasing density of trays and compute elements in data center racks limits the available space for cable connections and cooling, making it difficult to provide sufficient area for routing cables and maintaining effective airflow.
Innovation Solution
A rack design that utilizes side-cabling with cable cartridges mounted vertically and side connectors on trays, allowing for shorter passive differential pair cables, freeing up rear space for airflow and other components, and enabling scalable interconnection of trays within and between racks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If rear-side cabling is used to connect trays, then cable connections can be made at the back of the rack, but the available space for routing cables and cooling equipment becomes limited as tray density increases
Solution Approach 1:
The patent transitions from rear-side cabling to side-side cabling, changing the spatial dimension where cable connections are made. Connectors are positioned on the sides of trays rather than the rear, allowing cables to route through side cable cartridges. This dimensional shift frees up rear space for cooling equipment while maintaining cable connection accessibility.
Solution Approach 2:
The patent segments the cabling function from the tray body by using separate side-mounted cable cartridges. These cartridges are independently positioned and can be accessed separately from the trays, allowing cable routing to be organized in discrete units along the side of the rack rather than concentrated at the rear.
2Productivity
If high-density tray stacking is implemented to increase compute capacity, then more compute elements can be housed, but the space available for cooling equipment and cable management decreases
Solution Approach 1:
By moving cable connections to the side dimension rather than the rear dimension, the patent creates vertical space along the sides of the rack for cable cartridges. This allows high-density tray stacking in the vertical direction while maintaining dedicated side space for cable management and preserving rear space for cooling airflow.
Solution Approach 2:
The patent extracts the cable routing function from the rear space and places it in side-mounted cable cartridges. This separation removes the cable management burden from the limited rear area, allowing that space to be dedicated to cooling equipment and airflow paths while side space handles cable organization.
3Reliability
If active or optical cables are used for tray interconnections, then reliable signal transmission is achieved, but cable length and complexity increase
Solution Approach 1:
The side-to-side connector positioning enables shorter cable paths between adjacent trays compared to rear-to-rear connections. This reduced distance allows the use of simpler passive differential pair cables instead of requiring active or optical cables, decreasing system complexity while maintaining signal integrity.
Data Source
AI summary
An alignment system is provided. In one aspect, the alignment system includes a tray configured to mount into a rack. The tray includes a first electrical connector and a first alignment element. The alignment system also includes a component configured to mount into the rack. The component includes a second electrical connector and a second alignment element. The first alignment element is configured to mate with the second alignment element when the tray is slid into the rack. Mating of the first and second alignment elements aligns the first and second electrical connectors. The first and second electrical connectors are disposed along respective axes that are parallel with a direction that the tray is slid into the rack.