Vertically Adjustable Cable Management Arm for Rack Service Access
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Solution Overview
Problem
Existing cable management arms in data center racks often interfere with network device servicing due to space limitations, preventing efficient access and maintenance.
Innovation Solution
A vertically adjustable cable management arm that can be positioned at different vertical levels, allowing easy access to network devices by sliding out of the way without needing to be swung out from the rack.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the cable management arm is hinged and rotated away from the back of the rack to access network devices, then access to network devices is improved, but space limitations in densely packed data centers prevent the arm from being fully rotated away
Solution Approach 1:
The cable management arm transitions from horizontal rotation to vertical movement, changing the dimension of motion from the horizontal plane to the vertical plane. This allows the arm to clear the service area by moving upward along vertical slots in the rack frame rather than rotating outward horizontally, resolving the space conflict in densely packed data centers.
Solution Approach 2:
The cable management arm is made dynamically adjustable through vertical positioning mechanisms including slots, brackets, and latches. The arm can be positioned at multiple vertical levels and locked in place, allowing it to adapt to different service requirements and space constraints rather than being fixed in a single position.
2Stability of the object's composition
If the cable management arm is kept fixed to maintain cable organization, then cable management is improved, but servicing of network devices becomes difficult or impossible due to arm interference
Solution Approach 1:
The cable management system is segmented into movable and stationary components. The cable management arm can be independently positioned and locked at different vertical levels, allowing the cable routing structure to remain organized while the arm is temporarily repositioned during servicing operations, then returned to its organized position afterward.
Solution Approach 2:
The cable management arm is pre-positioned and locked in place during normal operation to maintain cable organization. Before servicing, the arm is preliminarily repositioned to a different vertical level or removed from the service area, enabling access to network devices without disrupting cable organization during normal operation.
3Ease of operation
If the cable management arm is fully rotated away to enable device replacement, then access to network devices is improved, but the latch mechanism and locking system become complex
Solution Approach 1:
The locking mechanism uses simple latch members that engage with corresponding features on the mounting brackets at different vertical positions. The latches provide secure locking at each position without requiring complex mechanisms, enabling easy vertical adjustment and locking of the cable management arm at multiple levels.
Data Source
Figure 1A
Figure 1B
Figure 2A
AI summary
An equipment rack with a compact adjustable cable management arm is disclosed. The equipment rack includes a plurality of chassis slots arranged vertically. Each chassis slot is operable to hold at least one removable electronic device. A pair of side rails supports the plurality of chassis slots. An adjustable cable management arm is located on one end of the side rails. The adjustable cable management arm has at least a first vertical position allowing access to one of the chassis slots. The adjustable cable management arm has a second vertical position allowing access to another of the chassis slots blocked by the cable management arm when the cable management arm is in the first vertical position.