Network Cabinet Retractable Doors and Integrated Grounding

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Solution Overview

Problem

There is a need for network cabinets that provide easy access to internal components for cable connections and offer efficient grounding solutions, while also being less obtrusive and convenient for switching and patching applications.

Innovation Solution

The network cabinet design features retractable hinges on doors, a conductive base frame with integrated grounding, adjustable equipment rails, and a modular structure that allows for easy installation and modification of cable management systems, ensuring efficient cable pathways and grounding without the need for separate jumper wires.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If traditional fixed hinges are used on cabinet doors, then the door structure is simple and reliable, but the door cannot be opened from either side and access to internal components is limited

Engineering Contradiction:
Improvedoor accessibilityVSAvoidhinge mechanism
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The hinge mechanism is designed to be dynamic rather than fixed, allowing the door to rotate about either hinge pin depending on which side needs access. The retractable pins enable the door to switch between left-side and right-side opening configurations, providing operational flexibility while maintaining a relatively simple overall structure.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The hinge system is segmented into multiple independent hinge pins (first hinge pin, second hinge pin) that can be selectively engaged or disengaged. This segmentation allows the door to be opened from either the left or right side by retracting the appropriate pin, thereby improving accessibility without requiring a completely complex mechanism.

Inventive Principle:
Principle #1Segmentation

2Productivity

If separate jumper wires are used for grounding, then the grounding path can be established, but the installation complexity increases and grounding efficiency decreases

Engineering Contradiction:
Improvegrounding efficiencyVSAvoidgrounding system
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The grounding function is merged with the cabinet frame structure itself. The conductive base frame and vertical frame rails serve dual purposes: providing structural support and establishing the grounding path. This eliminates the need for separate jumper wires, thereby improving grounding efficiency while reducing installation complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The cabinet frame structure performs self-grounding through its inherent conductivity. The base frame and vertical frame rails automatically provide the grounding path without requiring additional grounding components or complex wiring, allowing the system to ground itself efficiently.

Inventive Principle:
Principle #25Self-service

3Ease of operation

If the vertical frame rail is positioned close to the sidewalls, then the cabinet structure is compact, but cable management pathways are obstructed and accessibility to internal portions is reduced

Engineering Contradiction:
Improvecable management accessibilityVSAvoidcabinet internal space
Core Design Contradiction:
Ease of operationVSArea of stationary object

Solution Approach 1:

The vertical frame rails are positioned in a specific spatial arrangement that creates three-dimensional cable management pathways. By spacing the rails appropriately from the sidewalls, the design utilizes the available vertical and lateral space to create unobstructed pathways for cable routing, improving accessibility without significantly compromising the overall compactness of the cabinet structure.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS7592541B2Network cabinet
Publication Date: 2009.09.22 PANDUIT CORP
  • US7592541B2 patent drawing
  • US7592541B2 patent drawing
  • US7592541B2 patent drawing

AI summary

A network cabinet is provided comprising first and second doors. The first door is positioned on a side of the cabinet and comprises first and second opposing lateral sides that each comprise a retractable hinge that permits the first door to rotate about either of the hinges. The second door is positioned on another side of the cabinet and comprises opposing lateral sides wherein at least one of the lateral sides comprises a hinge that permits the door to rotate about the hinge.