Electrical Connector Terminal Layout for Crosstalk Reduction
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Solution Overview
Problem
Conventional electrical connectors experience significant crosstalk between signal terminals due to their dense arrangement, leading to interference issues, and existing solutions like ground terminals or shielding coating layers either compromise adaptability or increase production costs.
Innovation Solution
The electrical connector design includes terminals with base portions arranged to maintain contact portions' alignment while increasing the distance between base portions, reducing crosstalk without altering the contact portions' locations, and using a single-sheet material for terminal formation to simplify manufacturing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If signal terminals are arranged densely to connect chip module, then electrical connection is achieved, but crosstalk between signal terminals increases
Solution Approach 1:
The patent applies dimensionality change by separating signal terminals not only horizontally but also vertically through different row positions. Signal terminals are arranged in multiple rows with different row distances from the first reference line, creating three-dimensional spatial separation that reduces crosstalk while maintaining dense connection capability.
Solution Approach 2:
The patent employs asymmetric arrangement where signal terminals in different rows have different column positions and different distances from reference lines. This asymmetric positioning ensures that signal terminals are not uniformly distributed but strategically placed to maximize spacing between adjacent signal terminals while maintaining overall density.
2Object-affected harmful factors
If ground terminals are added to reduce crosstalk, then signal interference is reduced, but adaptability of electrical connector decreases
Solution Approach 1:
The patent changes the positional parameters of signal terminals rather than adding ground terminals. By adjusting row distances and column positions of signal terminals, the patent achieves crosstalk reduction through parameter optimization instead of structural modification, thereby maintaining adaptability.
3Object-affected harmful factors
If shielding coating layer is added to reduce crosstalk, then signal shielding is achieved, but manufacturing complexity and production cost increase
Solution Approach 1:
The patent extracts the shielding function from additional structural elements (like coating layers) and integrates it into the basic terminal arrangement itself. By carefully positioning signal terminals with optimized spacing and asymmetry, the structure itself provides interference reduction without requiring separate shielding components.
Solution Approach 2:
The patent uses simple positional adjustments of existing terminals rather than expensive shielding materials or complex manufacturing processes. The solution relies on basic geometric arrangement that can be implemented through standard manufacturing techniques without additional cost.
4Object-affected harmful factors
If base portions of signal terminals are moved farther apart, then crosstalk is reduced, but contact portion alignment may be affected
Solution Approach 1:
The patent resolves the conflict between base portion spacing and contact alignment by utilizing vertical dimension (different rows) to achieve separation. Signal terminals in different rows can have their base portions farther apart horizontally while their contact portions remain precisely aligned vertically with the chip module connection points.
Data Source
AI summary
An electrical connector includes: an insulating body, in which one region has a plurality of accommodating slots; and a plurality of terminals, accommodated in the accommodating slots in the region. Each terminal has a base portion and an extending arm extending from the base portion. The extending arm is provided with a contact portion, which is used to be in contact with an electrical component along a vertical direction. The terminals located in the region include a first signal terminal and a second signal terminal. Viewing along the vertical direction, the pointing direction of the first signal terminal and the pointing direction of the second signal terminal are different, and the base portion of the first signal terminal and the contact portion of the first signal terminal is located farther away from the base portion of the second signal terminal than the contact portion of the first signal terminal.