Grounding Sheet Elastic Segmentation for Connector Stability
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Solution Overview
Problem
Existing electrical connectors experience reduced grounding performance and high-frequency signal transmission due to the bending of the grounding sheet during assembly, which affects contact conduction between the grounding sheet and ground terminals.
Innovation Solution
The electrical connector design includes a grounding sheet with a connecting arm and abutting portions that abut the insulating body's mounting surface, featuring elastic sheets located at the terminal slots' openings, which counteract forces to prevent bending and ensure good contact with terminals, thereby maintaining effective grounding and high-frequency transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the grounding sheet is assembled with elastic sheets pressing on ground terminals, then grounding loops are formed for high frequency transmission, but the middle portion of the flat plate portion bends due to abutting force, reducing grounding performance
Solution Approach 1:
The grounding sheet is divided into a flat plate portion and multiple elastic sheets. The elastic sheets are separated from the main plate body and positioned to press on ground terminals, distributing the abutting force across multiple points rather than concentrating it in the middle portion, thereby preventing bending of the flat plate portion while maintaining grounding loops for high frequency transmission
Solution Approach 2:
Different portions of the grounding sheet are given different functional properties. The flat plate portion maintains a rigid structure for stable mounting and electrical connection, while the elastic sheets are designed with flexibility to absorb assembly forces and maintain contact pressure on ground terminals. This local differentiation of mechanical properties prevents bending of the main plate while enabling effective grounding
2Productivity
If the elastic sheets press on ground terminals to form grounding loops, then high frequency transmission is achieved, but the abutting force causes bending of the grounding sheet's middle portion
Solution Approach 1:
The grounding sheet structure segments the force transmission path by separating the elastic sheets from the main flat plate portion. This allows the elastic sheets to independently absorb assembly forces through their deformation, preventing these forces from transmitting to and bending the flat plate portion, thereby maintaining both grounding loop formation for high frequency transmission and structural stability
Solution Approach 2:
The elastic sheets act as pre-designed cushioning elements between the flat plate portion and ground terminals. During assembly, these elastic sheets absorb and dissipate the abutting forces before they can reach the flat plate portion, protecting the main structure from bending while still enabling the formation of grounding loops necessary for high frequency signal transmission
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
This design prevents the bending of the grounding sheet during assembly, ensuring good contact with terminals and reducing signal interference, thus enhancing the grounding performance and high-frequency transmission efficiency.
Implementation Method 1
an elastic sheet is located at an opening of one of the terminal slots, and the elastic sheet is provided at one side of a corresponding one of the abutting portions
Data Source
AI summary
An electrical connector includes: an insulating body, having a mounting surface and a plurality of terminal slots concavely provided on the mounting surface; a grounding sheet, having a connecting arm and a plurality of abutting portions abutting the mounting surface; and at least one terminal, mounted to the insulating body along a backward-from-front direction. Each of the abutting portions is located at one side of a corresponding one of the terminal slots. An elastic sheet is located at an opening of one of the terminal slots, and is provided at one side of a corresponding abutting portion. The terminal abuts the elastic sheet. The terminal has a contact portion entering a corresponding one of the terminal slots to be electrically connected to a mating device.