Double-Density Cable Connector Layout for Tight Chassis Space
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Solution Overview
Problem
Traditional 8P8C connectors in information handling systems face challenges in optimizing space on the chassis wall, often requiring designers to sacrifice features or thermal management due to their height, which is not compatible with smaller enclosures with dense designs.
Innovation Solution
The development of an enhanced double-density plug and receptacle connector system that allows for increased communications channels without increasing the height or width, utilizing a housing with locking tabs and insulation displacing contacts to expose multiple sets of wires to pins, enabling efficient mechanical and electrical coupling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional 8P8C connectors are used, then connectivity is provided, but chassis wall space is excessive
Solution Approach 1:
The patent combines two 8P8C connector interfaces into a single integrated connector assembly. The housing contains two separate contact arrays (first and second sets of contacts) that can simultaneously accommodate two different cable types (e.g., Ethernet and power over Ethernet), effectively merging two connectivity functions into one space-efficient unit.
Solution Approach 2:
The connector utilizes a three-dimensional contact arrangement where contacts are positioned at different depths and angles within the housing. This dimensional optimization allows two full 8-pin interfaces to be packed into a footprint comparable to a single traditional connector, maximizing space utilization in the chassis wall.
2Adaptability or versatility
If dual-stack 8P8C connectors are used to increase connectivity, then communications channels are increased, but height increases
Solution Approach 1:
Instead of stacking connectors vertically (increasing height), the patent arranges two complete 8-pin contact arrays side-by-side within a single housing plane. The contacts are positioned in adjacent rows, allowing both interfaces to coexist without increasing the overall height beyond that of a single traditional connector.
Solution Approach 2:
The connector housing is designed to contain two complete connector interfaces within its structure, similar to nested dolls. Each interface has its own contact array and wire termination section, but both are housed within the same external envelope, maximizing space efficiency.
3Reliability
If traditional connectors are used, then mechanical coupling is provided, but locking mechanism is insufficient
Solution Approach 1:
The locking mechanism is segmented into two independent locking tabs, with each tab corresponding to one of the two connector interfaces. This segmentation allows each interface to be locked independently, providing reliable mechanical coupling for both cables simultaneously while maintaining a simple, modular structure that doesn't significantly increase overall complexity.
Data Source
AI summary
A cable assembly may include a cable having a plurality of electrically-conductive wires including a first set of wires and a second set of wires and a plug terminating an end of the cable, the plug comprising a housing including a locking tab formed on the outside of the housing on a first side of the housing and configured to mechanically couple the plug to a corresponding receptacle connector, a first contact formed on the first side of the housing and configured to expose the first set of wires to a first set of pins of the corresponding receptacle connector, and a second contact formed on a second side of the housing opposite the first side and configured to expose the second set of wires to a second set of pins of the corresponding receptacle connector.