Looped Cable Retainer for Server Drawer Cooling
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Solution Overview
Problem
Conventional cable management in server configurations results in cables occupying excessive space and impeding airflow due to their length, which is necessary to allow access to the entire sliding drawer, thereby limiting cooling within the rack.
Innovation Solution
A cable management system that includes a chassis with cable retainers and a looped cable configuration, allowing the chassis to move between stowed and service positions without disconnecting the cable, and utilizing a cable guide to facilitate movement and secure the cable along the sidewall, thereby minimizing space occupation and airflow obstruction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If cables are made as long as the desired travel length of the tray to allow full access, then the drawer can be fully accessed, but the cables occupy considerable space and impede airflow within the rack
Solution Approach 1:
The cable is divided into multiple segments: a first portion extending from the chassis, a second portion fastened to the cable retainer in a looped configuration, and a third portion attached to the sidewall. This segmentation allows each portion to serve a specific function while minimizing overall cable space occupation.
Solution Approach 2:
The cable is configured in a looped arrangement that utilizes three-dimensional space within the rack rather than extending linearly across the entire travel distance. The looped configuration positions the cable vertically and laterally to clear the airflow path while maintaining connectivity.
2Ease of operation
If cables are made long to reach from rear of drawer to front, then full drawer access is enabled, but airflow and cooling are limited
Solution Approach 1:
The cable path is segmented into functional portions that route through different spatial zones, with the looped second portion positioned to clear the horizontal airflow path while the first and third portions connect to the chassis and sidewall respectively.
Solution Approach 2:
The cable retainer acts as an intermediary component that anchors the looped cable configuration, allowing the cable to maintain its position and clear airflow paths while still providing full drawer accessibility.
3Reliability
If cable length equals drawer length for full travel, then continuous connectivity is maintained, but space efficiency is reduced
Solution Approach 1:
The cable retainer is configured to move with the chassis as the drawer is extended or retracted, dynamically adjusting the cable position to maintain connectivity while minimizing space occupation at all travel positions.
Solution Approach 2:
The looped cable configuration utilizes vertical and lateral dimensions rather than only horizontal extension, reducing the cable's footprint in the horizontal plane while maintaining continuous connectivity throughout the drawer's travel range.
Data Source
AI summary
A cable management system including a component rack including a top wall, a bottom wall, and first and second spaced apart sidewalls extending therebetween to define a rack interior. A pair of drawer slides are attached to the first and second sidewalls in the rack interior and a chassis is attached to the pair of drawer slides whereby the chassis is movable between a stowed position inside the rack interior and a service position outside the rack interior. At least one cable retainer is attached to the chassis between the chassis and the first sidewall. A cable is positioned between the chassis and the rack and the cable includes a first portion extending from the chassis, a second portion fastened to the at least one cable retainer between the drawer chassis and the first sidewall in a looped configuration, and a third portion attached to the first sidewall.