Connector Ground Contact Arm Structure for Crosstalk Reduction
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Solution Overview
Problem
Current communication equipment systems face performance degradation due to excessive crosstalk in connectors, particularly as serializer/deserializer rates and power increase, leading to complex shielding structures that complicate assembly, increase costs, and reduce shielding performance.
Innovation Solution
A connector design featuring a terminal module with signal and ground terminals, a shielding part with a contact arm that elastically contacts the ground terminal, and a simplified structure to reduce crosstalk, including a housing with a mounting groove and a protection structure to enhance signal transmission and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a complex shielding structure is used to reduce crosstalk, then shielding performance is improved, but device complexity and manufacturing costs increase
Solution Approach 1:
The connector is divided into distinct functional modules: terminal module, shielding part, and housing. The shielding part is further segmented into shielding body and contact arm components. This modular segmentation allows each part to be optimized independently for its specific function while simplifying overall manufacturing and assembly processes.
Solution Approach 2:
The contact arm is extracted as a separate elastic component from the shielding body, allowing it to be independently optimized for electrical contact function. This extraction enables the shielding body to focus on electromagnetic shielding while the contact arm handles the electrical connection to ground terminals.
2Object-affected harmful factors
If a complex shielding structure is used to reduce crosstalk, then shielding performance is improved, but ease of manufacture deteriorates
Solution Approach 1:
By segmenting the connector into modular components (terminal module, shielding part, housing), each component can be manufactured using standard processes and assembled through simple insertion and snapping operations, significantly improving ease of manufacture while maintaining effective shielding.
Solution Approach 2:
The contact arm is designed with elastic properties that enable it to automatically make electrical contact with ground terminals through its own elasticity, without requiring additional fastening operations. This self-service mechanism simplifies assembly while ensuring reliable electrical connection for shielding effectiveness.
3Object-affected harmful factors
If a complex shielding structure is used to reduce crosstalk, then shielding performance is improved, but stability of shielding contact deteriorates
Solution Approach 1:
The contact arm is designed as an elastic component that can dynamically adapt to manufacturing tolerances and assembly variations. Its elasticity allows it to maintain stable electrical contact with ground terminals despite minor positional deviations, ensuring consistent shielding performance.
Solution Approach 2:
The elastic properties of the contact arm are optimized to provide sufficient contact force for stable electrical connection while maintaining flexibility for assembly. This parameter optimization ensures reliable shielding contact without requiring complex fixation mechanisms.
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 proposed connector effectively improves crosstalk performance and signal transmission by reducing insertion loss and dependence on shielding, while simplifying assembly and reducing costs through a more efficient shielding design.
Implementation Method 1
the contact arm may be elastically abutted against the ground terminal, to implement an electrical connection between the contact arm and the ground terminal
Implementation Method 2
the shielding body may cover at least a part of the terminal body, to shield the connection terminal
Data Source
AI summary
A connector may be disposed in the communication device, and may be signally connected to a circuit board in the communication device. The connector may include a terminal module and a shielding part. The terminal module includes a plurality of connection terminals, and the plurality of connection terminals include a signal terminal and a ground terminal. The connection terminal includes a first end, a second end, and a terminal body that connects the first end and the second end. The shielding part includes a shielding body and a contact arm. In addition, the contact arm may be elastically abutted against the ground terminal, to implement an electrical connection between the contact arm and the ground terminal. By using the connector provided in this application, crosstalk performance of the terminal module can be improved, to enhance signal transmission performance of the communication device.