Electrical Connector Terminal Structure Crosstalk Reduction
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Solution Overview
Problem
Conventional land grid array electrical connectors face increased crosstalk issues due to high terminal density, leading to signal transmission quality degradation, and existing crosstalk inhibition methods require additional metal frames or sheets, increasing complexity and cost.
Innovation Solution
The electrical connector features two types of terminals with different structures arranged in receiving slots of an insulating body, with specific elastic and conducting arms configurations that reduce direct facing areas between terminals, eliminating the need for additional metal frames or sheets, thereby alleviating crosstalk and simplifying production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the arrangement density of conductive terminals is increased to accommodate increasing information transmission quantity, then the signal transmission capacity is improved, but the crosstalk between terminals worsens
Solution Approach 1:
The patent applies local quality by differentiating the structures of adjacent terminals. Specifically, alternating terminals have different configurations of elastic arms and conducting arms, creating local structural variations that reduce direct facing areas between adjacent terminals. This local differentiation maintains high density while mitigating crosstalk through asymmetric designs where some terminals have elastic arms extending in different directions or with different lengths.
2Object-affected harmful factors
If a metal frame or metal sheet is added to the insulating body to reduce crosstalk, then the crosstalk inhibition is improved, but the device complexity and production cost worsen
Solution Approach 1:
The patent merges the crosstalk inhibition function directly into the terminal structures themselves, eliminating the need for separate metal frames or sheets. The elastic arms and conducting arms are integrated components of the terminals that provide both electrical connection and crosstalk reduction through their geometric configurations. This merging approach reduces device complexity by removing additional components while maintaining the essential functions.
Solution Approach 2:
The terminal structures serve dual purposes: they provide electrical connection functionality and simultaneously provide crosstalk inhibition through their own geometric designs. The elastic arms and conducting arms are configured to create shielding effects and reduce direct facing areas without requiring external assistance from separate metal components. Each terminal structure is self-sufficient in providing both its primary function and the crosstalk mitigation function.
3Object-affected harmful factors
If a metal frame or metal sheet is added to the insulating body to reduce crosstalk, then the crosstalk inhibition is improved, but the production cost worsens
Solution Approach 1:
The patent combines multiple functions into the terminal structures themselves, eliminating the need for separate metal frames or sheets that would require additional manufacturing steps, materials, and assembly operations. The integrated design reduces production cost by simplifying the manufacturing process to a single molding operation for the entire connector assembly.
Solution Approach 2:
The patent changes the geometric parameters of the terminal structures, specifically the configurations of elastic arms and conducting arms, to achieve crosstalk reduction. By modifying structural parameters such as arm lengths, angles, and positions rather than adding separate components, the design maintains manufacturability while achieving the desired performance improvement.
4Object-affected harmful factors
If additional metal components are added to the connector, then the crosstalk shielding is improved, but the molding difficulty worsens
Solution Approach 1:
The patent merges all necessary components into a single integrated structure that can be molded as one piece. The insulating body and terminal structures are designed to be formed in a single molding process without requiring separate metal components that would need additional assembly steps. This integration dramatically simplifies the molding process while maintaining the crosstalk reduction functionality through the terminal geometries.
Data Source
AI summary
An electrical connector includes an insulating body having multiple receiving slots, and multiple first terminals and multiple second terminals respectively received in the receiving slots. Each first terminal has a first connecting portion, a first elastic arm bending and upward extending from the first connecting portion, and a first conducting arm bending and extending from the first connecting portion. Each second terminal has a second connecting portion, a second elastic arm bending and extending upward from the second connecting portion, and a second conducting arm bending and extending from the second connecting portion. A bent position between each of the first connecting portions and a corresponding one of the first elastic arms is higher than a bent position between each of the second connecting portions and a corresponding one of the second elastic arms.