Cable Retention Housing Grounding Mechanism
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Solution Overview
Problem
High-speed signal cables connected to substrates often experience electromagnetic interference due to exposed signal conductors, leading to crosstalk issues that existing technologies have not adequately addressed.
Innovation Solution
A retention housing with a housing body and mounting members is designed to be mounted to a substrate, featuring an upper wall that compresses cables against the substrate and a ground element, establishing a ground path through the cables' ground jackets to suppress crosstalk. The housing includes cavities to receive cables and mounting members that attach to the substrate, ensuring the cables are securely positioned and grounded.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cable assemblies are used to electrically connect components, then electrical connectivity is achieved, but electromagnetic interference and crosstalk occur due to exposed signal conductors
Solution Approach 1:
The patent extracts the harmful exposed signal conductors from the cable assembly by enclosing them within a retention housing. The housing body with cavity receives the cable and the upper wall compresses the cable against the substrate, effectively removing the exposed conductors that cause electromagnetic interference while maintaining electrical connectivity through controlled contact points.
Solution Approach 2:
The retention housing is designed to compress the cable against a ground element before signal transmission occurs. This preliminary compression establishes a ground path through the cable's ground jacket, creating a reference potential that prevents electromagnetic interference and crosstalk from affecting the signal conductors during operation.
2Object-affected harmful factors
If the upper wall compresses the cable against the substrate, then electromagnetic interference is reduced, but the structural complexity increases
Solution Approach 1:
The patent merges multiple functions into the retention housing structure: the housing body provides mechanical protection and positioning, the cavity receives and secures the cable, the upper wall performs the compression function to establish grounding, and the mounting members attach the entire assembly to the substrate. This integration reduces the need for separate components and simplifies the overall structure despite the multiple functions performed.
Solution Approach 2:
The retention housing is designed as a multi-functional component that simultaneously provides mechanical support, cable positioning, electromagnetic shielding through compression, and mounting capability. The upper wall serves both as a structural element and as the compression mechanism that establishes the ground path, demonstrating multi-functionality that reduces overall system complexity.
3Manufacturing precision
If the retention housing is designed to accommodate cumulative thickness of substrate and cable, then proper compression is achieved, but the housing dimension constraints increase manufacturing difficulty
Solution Approach 1:
The patent designs the retention housing with a predetermined dimension that accounts for the cumulative thickness of the substrate and cable. The upper wall is positioned at a specific distance from the mounting members that corresponds to the sum of substrate thickness and cable thickness, ensuring proper compression force is applied when the housing is assembled. This parameter-based design approach standardizes the compression mechanism.
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 effectively reduces crosstalk between cables by compressing them against the substrate and establishing a ground path, thereby mitigating electromagnetic interference and improving signal integrity.
Implementation Method 1
the upper wall compresses at least a portion of the at least one cable against the substrate so as to bias the portion of the at least one cable against a ground element supported by an upper surface of the substrate
Data Source
AI summary
A retention housing having a housing body is provided, the retention housing configured to be mounted to a substrate. At least one, such as a plurality of cables can be electrically connected to a respective surface of the substrate to which the retention housing is mounted. When the retention housing is mounted to the respective surface of the substrate, at least a portion of the at least one cable can be compressed between a ground element supported by the respective surface of the substrate and a corresponding upper wall of the housing body, such that the at least one cable is placed into electrical communication with a ground plane defined by the substrate.