Cable Connector Shield Shell With Elastic Metal Shrapnel Grounding
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Solution Overview
Problem
Existing cable connector assemblies require additional stamping processes and result in increased electromagnetic interference (EMI) due to longer circuit distances and higher grounding resistance.
Innovation Solution
A cable connector assembly design where metal shrapnel are elastically pressed between the connector metal shell and an external device, eliminating the need for extra grounding pieces and simplifying the manufacturing process, while ensuring effective grounding and reduced EMI.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If extra stamping processes are used to produce two sets of grounding pieces, then grounding coverage is improved, but manufacturing complexity and cost increase
Solution Approach 1:
The patent combines the grounding function with the shield shell structure by integrating metal shrapnel directly into the shield shell. This eliminates the need for separate grounding pieces and extra stamping processes, while still achieving comprehensive grounding coverage through the elastic contact of metal shrapnel with the metal shell.
2Reliability
If extra stamping processes are used to produce two sets of grounding pieces, then grounding coverage is improved, but production time increases
Solution Approach 1:
The grounding function is merged into the shield shell manufacturing process itself. The metal shrapnel are formed as integral parts of the shield shell during a single stamping operation, eliminating the need for separate grounding piece production and assembly steps, thereby significantly improving production efficiency.
3Reliability
If extra grounding pieces are added, then grounding coverage is improved, but circuit distance increases
Solution Approach 1:
The patent extracts the grounding function from separate grounding pieces and integrates it directly into the shield shell structure. The metal shrapnel within the shield shell provide direct grounding contact points, eliminating the need for long circuit paths through multiple separate grounding components.
4Reliability
If extra grounding pieces are added, then grounding coverage is improved, but grounding resistance increases
Solution Approach 1:
The patent employs elastic metal shrapnel that can dynamically adjust their position and contact pressure. This elastic deformation capability ensures reliable electrical contact and low grounding resistance, as the metal shrapnel automatically adapt to maintain optimal contact with the metal shell during assembly and operation.
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
This design simplifies the manufacturing process, reduces grounding resistance, and minimizes electromagnetic interference by directly connecting the metal shrapnel with the connector metal shell during assembly.
Implementation Method 1
the metal shrapnel is movable by an external device to be elastically pressed between the connector metal shell and the external device
Data Source
AI summary
A cable connector assembly for being mounted on an external device for docking a mating connector, the cable connector assembly including a shield shell having a plurality of metal shrapnel, an insulative housing received in the shield shell, a plurality of connectors received in the insulative housing, and a cable connecting with the connector. The connector has a metal shell. The metal shrapnel is movable by the external device to be elastically pressed between the connector metal shell and the external device.