Server Rack Cable Access Hatch with Ratcheting Lock
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Solution Overview
Problem
Existing cable access methods for enclosures, such as server racks, lack security and cable retention, allowing cables to be easily unplugged due to loose connections and failing to securely cover open gaps, leading to potential damage from jostling or tension.
Innovation Solution
A secure-able cable access mechanism that uses a retractable hatch with a ratcheting mechanism to force cables into a smaller section, securing them within the enclosure and preventing external access, combined with a linear ratchet and pawl mechanism to lock the cables in place, ensuring they cannot be easily removed without internal access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a cable access opening is left open to allow cable passage, then cable installation is enabled, but security and cable retention are compromised
Solution Approach 1:
The opening is segmented into a first portion for cable passage and a second portion that can be covered by a hatch. This allows the opening to simultaneously provide cable access while maintaining security when the hatch covers the second portion.
Solution Approach 2:
A hatch is provided that can move between an open position (allowing cable installation) and a closed position (providing security). The hatch transforms the static opening into a dynamic structure that adapts its state based on operational needs.
2Ease of operation
If cables are allowed to pass freely through the opening, then cable access is simplified, but cables become vulnerable to jostling and tension
Solution Approach 1:
A cable retention mechanism is provided at a specific location within the opening to secure cables. This localized solution maintains easy cable access elsewhere while providing targeted retention where needed.
Solution Approach 2:
The cable retention mechanism is pre-configured in the structure to automatically secure cables as they are installed, preventing vulnerability to jostling and tension before problems occur.
3Reliability
If a secure covering is added to the opening, then security is improved, but cable installation becomes more complex
Solution Approach 1:
The hatch is designed to be movable between open and closed positions, allowing simple cable installation when open and providing security when closed. This dynamic design avoids the complexity of permanently complex structures.
Solution Approach 2:
The hatch serves multiple functions: it provides security coverage, defines the cable passage boundary, and works with the retention mechanism. This multi-functionality reduces the need for separate complex components.
4Quantity of substance
If the opening is made larger to accommodate multiple cables, then cable capacity increases, but security and air sealing deteriorate
Solution Approach 1:
The opening is divided into portions, with the hatch covering the second portion while leaving the first portion open for cable passage. This segmentation allows the structure to accommodate multiple cables through the open portion while maintaining security and air sealing when the hatch is closed.
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
The solution provides enhanced security by preventing external access and reducing the likelihood of cables being unplugged due to jostling or tension, while also improving air sealing and electromagnetic shielding, and allowing for easy cable management and service from within the enclosure.
Implementation Method 1
a ratcheting mechanism engages and this resists movement of the hatch in the return, retracting direction
Implementation Method 2
The pawl may include a pawl hook that is insertable through a hook access opening in the slider to engage the ratchet
Data Source
AI summary
An apparatus for securing a cable access includes a first cable opening in a top plate of a server rack with a tray affixed to the interior side of the top plate and with a second cable opening that overlaps the first cable opening. A hatch element is movable in a space between the plate and tray to cover up the unneeded areas of the first and second cable openings after cables have been installed. A ratchet and pawl attached to the tray and hatch element cooperate to allow movement of the hatch element in a closing direction and resist movement of the hatch element in an opening direction, with a release element disengaging the ratchet and pawl to allow the hatch element to open.