USB Type-C Connector Elastic Piece Stress Interference
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Solution Overview
Problem
Existing USB Type C electrical connectors face challenges in achieving good high-frequency transmission performance due to stress interference between the elastic piece and the metal shell, leading to inadequate shielding and release of the metal member, which compromises signal transmission.
Innovation Solution
The design includes an insulating body with a tongue and a metal member featuring a second section that forms an elastic piece, which urges against the metal shell, preventing stress interference and ensuring stable grounding through a soldering pin, thus enhancing shielding and high-frequency transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the elastic piece urges against the metal shell to achieve stable grounding, then the grounding reliability is improved, but the stress interference causes the metal member to be released and shielding effectiveness deteriorates
Solution Approach 1:
The metal member is divided into two separate sections: the first section remains fixed on the tongue to provide stable shielding, while the second section extends to form the elastic piece for grounding. This segmentation allows each part to perform its function independently without mutual interference, resolving the contradiction between grounding reliability and shielding effectiveness.
Solution Approach 2:
The elastic piece (second section) is extracted as a separate functional element from the main shielding structure (first section). This extraction allows the elastic piece to perform grounding functions while the first section maintains shielding without stress interference between the two functions.
2Adaptability or versatility
If the metal member extends forward to form an elastic piece for grounding, then the grounding function is improved, but the metal member structure becomes more complex and manufacturing difficulty increases
Solution Approach 1:
The metal member combines multiple functions into a single integrated component: the first section provides shielding while the second section provides grounding. This merging reduces the total number of separate parts and simplifies manufacturing compared to using separate components for each function.
Solution Approach 2:
The metal member is designed as a multi-functional component that simultaneously performs both shielding and grounding functions. The first section handles shielding while the second section handles grounding, allowing a single component to fulfill multiple roles and reduce overall device complexity.
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 configuration stabilizes the metal member, improves shielding effectiveness, and reduces resonance, resulting in better high-frequency transmission performance by preventing the metal member from being released and simplifying the circuit board design.
Implementation Method 1
the second section extends forward to form an elastic piece, the elastic piece urging against the metal shell
Data Source
AI summary
An electrical connector includes an insulating body, multiple terminals, a shielding sheet, a metal member, and a metal shell. The insulating body includes a base and a tongue extending forward from the base. The rear end of the tongue is provided with a step portion. The terminals are fixed in the base, exposed to the upper and lower surfaces of the tongue, and arranged in an upper row and a lower row. The shielding sheet is disposed in the tongue and located between the upper and lower rows of terminals. The metal member is fixed on the step portion, and has a first section located on the step portion and a second section located on the base. The second section extends forward to form an elastic piece. The metal shell wraps a periphery of the insulating body and the metal member. The elastic piece urges against the metal shell.