Electrical Connector Shielding Plate Spring Fingers Grounding
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Solution Overview
Problem
Existing electrical cable connectors with shielding plates lack reliable and robust mechanical and electrical connections to grounding terminals, which can lead to inadequate shielding against electromagnetic interference.
Innovation Solution
An electrical cable connector design featuring a base with integrated terminal modules, a metallic shielding plate, and spring fingers that mechanically and electrically connect to grounding terminals, ensuring robust grounding and reduced electromagnetic interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a shielding plate is placed between terminal modules, then electromagnetic interference is reduced, but reliable mechanical and electrical connection to grounding terminals is not achieved
Solution Approach 1:
The shielding plate is segmented into multiple spring fingers that can independently contact different grounding terminals. This segmentation allows each spring finger to establish its own reliable electrical and mechanical connection, ensuring that the shielding function is achieved while maintaining connection reliability through multiple discrete contact points rather than a single rigid connection.
Solution Approach 2:
The shielding plate transitions from a rigid structure to a dynamic structure with spring fingers that can flex and adapt. The spring fingers provide elastic contact with the grounding terminals, allowing the shielding plate to maintain reliable electrical connection while accommodating manufacturing tolerances and assembly variations, thus solving the contradiction between shielding effectiveness and connection reliability.
2Reliability
If spring fingers are added to connect shielding plate to grounding terminals, then connection reliability is improved, but device complexity increases
Solution Approach 1:
The shielding plate serves multiple functions simultaneously: it provides electromagnetic shielding, establishes electrical connection to grounding terminals through spring fingers, and provides mechanical support. By making the shielding plate multi-functional, the patent avoids adding separate components for each function, thus improving connection reliability without proportionally increasing device complexity.
Solution Approach 2:
The patent merges the shielding function and grounding connection function into a single integrated component (the shielding plate with spring fingers). This consolidation eliminates the need for separate shielding elements and grounding connectors, achieving reliable connection while minimizing the increase in structural complexity through functional integration.
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 provides a reliable and efficient electrical and mechanical connection to grounding terminals, effectively reducing electromagnetic interference while maintaining a compact connector design.
Implementation Method 1
The shielding plate includes front spring fingers and rear spring fingers respectively mechanically and electrically connected with the contacting sections and connecting sections of the respective grounding terminals
Data Source
AI summary
A first terminal module and a second terminal module are integrally assembled with the base, and each of the first terminal module and the second terminal module includes the insulator and the corresponding terminals embedded therein. The first terminal module and the second terminal module are stacked with each other with a metallic shielding plate therebetween. The shielding plate includes front spring fingers and rear spring fingers respectively mechanically and electrically connected with the contacting sections and connecting sections of the respective grounding terminals.