USB Receptacle Connector Bent Terminal Paths
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Solution Overview
Problem
Conventional USB receptacle connectors experience signal interference due to the lack of varied electromagnetic wave paths, leading to crosstalk and resonance issues during high-speed signal transmission, which is exacerbated by the insufficient bandwidth of USB 2.0 and the need for higher performance interfaces like USB 3.0.
Innovation Solution
The electrical receptacle connector features a metallic shell with a receptacle cavity, an insulated housing, and terminals with bent portions that create non-parallel delivering paths for electromagnetic waves, reducing crosstalk and allowing for dual orientation compatibility, enabling efficient high-speed signal transmission and compact design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional terminals are arranged in two or more rows without bent portions, then the connector structure is simple, but electromagnetic waves from different terminals interfere with each other during signal transmission
Solution Approach 1:
The patent applies curvature by adding bent portions to the terminal structures. Specifically, the first terminal has a first bent portion, the second terminal has a second bent portion, and the third terminal has a third bent portion. These bent portions create non-parallel delivering paths for electromagnetic waves, transforming the straight linear paths into curved trajectories that diverge from each other, thereby reducing electromagnetic interference between adjacent terminals while maintaining a relatively simple overall terminal structure.
2Speed
If USB 2.0 interface is used, then the connector structure is conventional and simple, but the transmission rate is insufficient for high-speed signal requirements
Solution Approach 1:
The patent employs curved bent portions in the terminal structures to create non-parallel electromagnetic wave paths. This curvature design specifically addresses signal interference problems that become critical at USB 3.0 high-speed transmission rates, allowing the connector to support faster transmission speeds while mitigating the increased electromagnetic interference that would otherwise occur at these higher frequencies.
Solution Approach 2:
The patent introduces spatial separation by arranging terminals in multiple rows (first row, second row, third row) with bent portions that extend in different directions. This multi-dimensional arrangement creates non-parallel delivering paths for electromagnetic waves from different terminals, effectively using spatial dimensionality to reduce interference while supporting USB 3.0 high-speed transmission requirements.
3Reliability
If terminals are arranged in parallel rows, then the connector layout is compact, but the delivering paths for electromagnetic waves are parallel causing interference
Solution Approach 1:
The patent maintains a compact multi-row terminal layout while introducing bent portions that create non-parallel electromagnetic wave paths. The first bent portion, second bent portion, and third bent portion are positioned and oriented to diverge the electromagnetic wave paths from terminals in different rows, reducing interference while preserving the space-efficient multi-row arrangement and keeping the overall connector volume compact.
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
The solution effectively minimizes signal interference and resonance, supports higher bandwidth requirements, and allows for a compact design while enabling dual orientation compatibility, facilitating easier manufacturing and improved performance in USB 3.0 signal transmission.
Implementation Method 1
the bent portions allow the terminals to have different and non-parallel delivering paths for electromagnetic waves, so that the signals do not interfere with each other easily
Data Source
AI summary
An electrical receptacle connector includes a metallic shell, an insulated housing, upper-row receptacle terminals, and lower-row receptacle terminals. The insulated housing is in the receptacle cavity of the metallic shell. The receptacle terminals are held in the base portion and the tongue portion. The tail portions of the power terminals and the tail portions of the ground terminals have three bent portions, i.e., the first bent portion, the second bent portion, and the third bent portion. The bent portions allow the terminals to have different and non-parallel delivering paths for electromagnetic waves, so that the signals do not interfere with each other easily.