Shielded Cable Connector Without an Intermediate PCB
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Solution Overview
Problem
Conventional cable connectors suffer from inconsistent shielding, leading to poor signal transmission performance, especially at high frequencies, and require an intermediate circuit board, increasing manufacturing costs.
Innovation Solution
The cable connector design includes an integrally formed shield mechanism with wave-shaped shield members and a crossbar, which provides consistent shielding and eliminates the need for an intermediate circuit board, enhancing signal transmission performance and reducing manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional cable connectors are used with separate shielding components, then assembly flexibility is maintained, but shielding consistency deteriorates leading to poor signal transmission performance
Solution Approach 1:
The patent combines the shielding mechanism and terminal support function into a single integrated component. The wave-shaped shield member serves dual purposes: providing electromagnetic shielding and mechanically supporting the terminals, thereby eliminating the need for separate shielding components and ensuring consistent shielding performance across all terminals.
Solution Approach 2:
The wave-shaped shield member is designed to perform multiple functions simultaneously: it provides electromagnetic shielding, supports multiple terminals in a row, and maintains consistent spacing between terminals. This multi-functional design simplifies the overall connector structure while improving signal transmission reliability.
2Ease of manufacture
If an intermediate circuit board is used to connect cables and electronic components, then electrical connections are established, but manufacturing costs increase
Solution Approach 1:
The patent extracts and eliminates the intermediate circuit board from the connection system. The cable connector is designed to directly connect cables to electronic components mounted on the circuit board, removing the unnecessary intermediate layer and reducing manufacturing costs while maintaining electrical connection functionality.
Solution Approach 2:
The wave-shaped shield member acts as an intermediary structure that directly bridges the cable connections and the circuit board mounting points, replacing the traditional circuit board intermediary and enabling direct connections between cables and electronic components.
3Reliability
If terminals are arranged in a row without integrated shielding, then structural simplicity is maintained, but shielding consistency deteriorates
Solution Approach 1:
The wave-shaped shield member features a curved, undulating profile with alternating peaks and valleys. This curved geometry naturally follows the arrangement of terminals in a row, providing consistent shielding over each terminal while maintaining structural simplicity. The wave pattern ensures that no terminal is left exposed to electromagnetic interference.
Data Source
AI summary
A cable assembly with a shielded termination portion where signal conductors of a plurality of cables are directly mounted to tail portions of signal terminals of a cable connector. Shielding in the termination portion may be provided by interaction of a wave-shaped shield, tail portions of ground terminals between tail portions of the signal terminals, a cross bar connecting the ground terminals and an exposed portion of a cable shield. The wave-shaped shield may be mechanically connected to at least the tail portions of the ground terminals and may be configured to press the cable shields into the bar. Such a configuration improves signal transmission performance by providing a consistent shielding at the connection areas where the cables are mounted to the tail portions of the conductive terminals and at the same time eliminates the need of an intermediate circuit board and therefore reduces manufacturing costs.