Electrical Connector Shielding via Segmented Ground Elastic Pieces
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Solution Overview
Problem
Conventional connectors experience significant signal crosstalk during transmission due to inadequate shielding of signal terminals by ground terminals, which affects the overall signal transmission performance.
Innovation Solution
The introduction of a terminal assembly with a second electromagnetic shielding member featuring multiple ground elastic pieces that connect with ground terminals of a mating connector, effectively reducing crosstalk between signal terminals by increasing the distance and improving electromagnetic shielding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional connectors use only ground terminals for shielding, then the structure is simple, but signal crosstalk occurs between adjacent signal terminals
Solution Approach 1:
The shielding structure is segmented into multiple independent ground elastic pieces, each corresponding to a signal terminal. This segmentation allows each ground elastic piece to independently shield its adjacent signal terminal, effectively reducing crosstalk while maintaining manageable structural complexity
Solution Approach 2:
The shielding approach transitions from a single-plane ground terminal arrangement to a three-dimensional shielding configuration. Ground elastic pieces extend from the insulating body toward signal terminals, creating multiple shielding layers in different spatial dimensions, which enhances shielding effectiveness without proportionally increasing complexity
2Object-affected harmful factors
If ground terminals are positioned close to signal terminals, then the connector structure is compact, but shielding effectiveness is insufficient
Solution Approach 1:
Each ground elastic piece is locally positioned to correspond with specific signal terminals, creating localized shielding zones. This local quality approach ensures that shielding is applied precisely where needed (around each signal terminal) rather than requiring uniform shielding across the entire connector cross-section, reducing overall area while maintaining effectiveness
Solution Approach 2:
The ground elastic pieces are nested within the connector structure, with each piece positioned to wrap around or adjacent to specific signal terminals. This nesting arrangement allows the shielding elements to be integrated within the existing connector geometry, maximizing shielding effectiveness within a compact cross-sectional area
3Reliability
If multiple ground elastic pieces are added to the second electromagnetic shielding member, then crosstalk reduction is improved, but manufacturing complexity increases
Solution Approach 1:
Multiple ground elastic pieces are merged into a single integrated second electromagnetic shielding member. This combining approach allows the pieces to be manufactured and positioned as one unit, reducing assembly steps and manufacturing complexity while still providing multiple independent shielding functions through the integrated structure
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 configuration enhances the signal transmission performance of electrical connectors by minimizing crosstalk and improving electromagnetic shielding, ensuring stable and interference-free signal transmission.
Implementation Method 1
The second electromagnetic shielding member comprises a plurality of ground elastic pieces disposed at intervals extending in a direction away from the insulating body. The plurality of ground elastic pieces can be respectively connected with the ground terminals of a mating connector to avoid crosstalk among the plurality of signal terminals transmitting signals
Data Source
AI summary
A terminal assembly and an electrical connector. The terminal assembly comprises a plurality of terminals, an insulating body, a first electromagnetic shielding member, and a second electromagnetic shielding member. The plurality of terminals comprises a plurality of signal terminals and a plurality of ground terminals. The signal terminals and the ground terminals are disposed at intervals. At least one signal terminal is disposed between two adjacent ground terminals. The insulating body is disposed at the plurality of terminals. One end of each terminal protrudes from one side of the insulating body, while the other end is exposed from the insulating body. The first electromagnetic shielding member is disposed at one side of the insulating body and is connected with the plurality of ground terminals. The second electromagnetic shielding member is disposed at the other side of the insulating body and is opposite to the first electromagnetic shielding member.