Electrical Connector Ground Member with Flexible Contact Arms
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Solution Overview
Problem
Conventional electrical connector designs fail to effectively suppress high-frequency noise and interference due to reduced terminal distances, leading to cross-talk issues in high-speed signal transmission, and are not adaptable to various terminal arrangements.
Innovation Solution
An electrical connector structure featuring a ground member with bent metal plates and contact arms that can be electrically connected to ground terminals, a fixing member, and conductive terminals with differential signal pairs to reduce interference and improve earthing functionality, allowing for flexible terminal arrangements and enhanced signal transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the connector size is shrunk to make it portable and occupy less space, then the connector becomes more compact and portable, but the distance between terminals is dramatically reduced causing cross-talk and noise in high-frequency signals
Solution Approach 1:
The ground member is segmented into multiple contact arms that are distributed across different locations. Each contact arm independently contacts with corresponding ground terminals, creating multiple grounding paths that effectively suppress cross-talk and noise in compact connector configurations
Solution Approach 2:
The contact arms act as intermediary elements between the ground member and ground terminals. These intermediaries transmit grounding signals and enable effective grounding even when terminal distances are reduced, thereby maintaining signal quality in shrunk connectors
2Reliability
If contact arms on shielding plate are bent in opposite directions to coordinate with alternating ground terminals, then grounding capability is enhanced, but the design cannot be applied when ground terminals are on the same projecting position
Solution Approach 1:
The contact arms are designed with flexibility to adapt their configuration. They can be bent in opposite directions when ground terminals are alternately arranged, or adjusted to contact terminals on the same projecting position when needed, making the design dynamically adaptable to different terminal arrangements while maintaining reliable grounding
Solution Approach 2:
The bending direction and configuration of contact arms are adjusted based on terminal arrangement parameters. When ground terminals are alternately disposed, contact arms bend in opposite directions; when terminals are on the same position, contact arms are configured to contact both terminals, allowing the design to adapt to various parameter configurations
3Reliability
If conventional shielding plate design with alternating contact arms is used, then grounding is effective for alternating terminal arrangements, but the manufacturing process becomes complex and productivity decreases
Solution Approach 1:
The ground member is designed as a universal component that can accommodate different terminal arrangements through flexible contact arm configuration. This multi-functional design eliminates the need for different shielding plate designs for different terminal patterns, simplifying manufacturing processes and improving productivity while maintaining grounding effectiveness
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 design effectively suppresses high-frequency noise and interference, improving signal transmission quality and efficiency by providing a flexible and adaptable solution for various terminal arrangements, while also simplifying manufacturing processes.
Implementation Method 1
The ground member and the fixing member are sandwiched between the two bases. The contact arms of the ground plate are electrically connected the ground terminals through the openings on the bases
Implementation Method 2
The ground member is formed by bending a metal plate, and the ground member has two opposite ground plates. Plural contact arms protrude from a surface of the ground plates
Data Source
AI summary
A electrical connector structure includes ground terminals formed in two rows, which are fixed into two bases respectively, in which each of the ground terminals includes a contact portion, a soldering portion and a main body is connected to the contact portion and the soldering portion, and each main body is fixed into the bases, and each soldering portion extends out of the bases; and a ground member including two ground plates, in which the ground plates covering surfaces of the bases, respectively, and a surface of each ground plate has a plurality of contact arms protruding, the contact arms are electrically contacted to the ground terminals, respectively, in which two ends of each contact arm contact the ground plates, respectively.