Shielded Electrical Connector Grounding Layout for Signal Interference
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Solution Overview
Problem
Existing electrical connectors experience signal interference and heat generation during high-speed transmission, leading to potential warping of the connector's plastic components.
Innovation Solution
The electrical connector incorporates a metal connecting plate that integrally connects grounding terminals and metal shielding plates, which are disposed between signal terminals to enhance shielding and reduce interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ground terminals in two rows of conductive terminals are integrally connected to a ground tie bar, then common grounding is achieved, but signal interference between signal terminals of the two rows increases and heat generation worsens
Solution Approach 1:
The invention divides the grounding structure into multiple independent grounding terminals in each row, connected by grounding bars within the same row only. The two rows are electrically isolated from each other, preventing signal interference between rows while maintaining common grounding within each row. This segmentation approach resolves the contradiction by eliminating the harmful electrical connection between rows that causes signal interference and heat generation.
Solution Approach 2:
The invention introduces non-conductive supporting structures (insulators) between the two rows of conductive terminals to electrically isolate them. These intermediaries prevent direct electrical contact between rows, thereby eliminating signal interference and reducing heat generation while preserving the grounding function within each row through separate grounding bars.
2Speed
If high-speed transmission is implemented, then data transmission rate increases, but heat generation increases causing plastic warping
Solution Approach 1:
By segmenting the conductive terminals into electrically isolated rows with separate grounding systems, the invention reduces electromagnetic interference and energy loss between adjacent signal lines. This allows for higher transmission speeds with reduced heat generation, as each row operates independently with minimized cross-talk and energy dissipation.
Solution Approach 2:
The invention converts the potential harmful effect of close proximity between signal lines into a benefit by implementing independent grounding for each row. The grounding structure is designed to channel and dissipate heat and interference locally within each row, preventing cumulative heat buildup that would cause plastic warping, thereby enabling high-speed transmission without thermal damage.
3Object-affected harmful factors
If metal shielding plates are added between signal terminals, then signal interference is reduced, but device complexity increases
Solution Approach 1:
The invention merges the shielding function with the existing grounding structure by using the grounding bars and supporting structures as both mechanical support and electromagnetic shielding elements. The metal components that provide structural integrity also serve as shielding plates, eliminating the need for separate shielding elements and thus reducing overall device complexity while maintaining signal interference reduction.
Solution Approach 2:
The grounding bars and structural components are designed to perform multiple functions simultaneously: providing mechanical support, establishing electrical ground connections, and acting as electromagnetic shielding plates. This multi-functionality reduces the number of separate components needed, thereby reducing device complexity while effectively shielding signal terminals from interference.
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 effectively reduces signal interference and heat generation, improving the reliability and longevity of the electrical connector by preventing plastic warping.
Implementation Method 1
a plurality of metal shielding plates being located inside the ground terminals in a transverse direction perpendicular to the longitudinal direction, the metal shielding plates being disposed between corresponding signal terminals of the two rows of conductive terminals in the transverse direction
Implementation Method 2
a metal connecting plate integrally connecting the plural grounding terminals and the plurality of metal shielding plates
Data Source
AI summary
An electrical connector includes: a housing extending along a longitudinal direction; two rows of conductive terminals retained in the housing, each row of conductive terminals comprising plural signal terminals and plural grounding terminals, each conductive terminal comprising a plate portion and a leg portion extending out of the housing, the plate portion defining an exposed outer face and an opposite inner face, the outer face defining a mating face; plural metal shielding plates being located inside the ground terminals in a transverse direction perpendicular to the longitudinal direction, the metal shielding plates being disposed between corresponding signal terminals of the two rows of conductive terminals in the transverse direction; and a metal connecting plate integrally connecting the plural grounding terminals and the plurality of metal shielding plates.