Electrical Connector Shielding Piece for Mating Arm Signal Integrity
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Solution Overview
Problem
Existing electrical connectors face challenges in achieving effective shielding, particularly at the position of the mating elastic arm, which affects signal integrity during transmission.
Innovation Solution
The electrical connector design includes a shielding piece with a base portion, elastic arm portion, and abutting portion, which is fixed to the ground terminals and extends over the signal terminals, providing enhanced shielding coverage and deformation compatibility with the mating elastic arms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a shielding piece is added to improve shielding effect, then signal integrity is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple shielding functions into a single integrated shielding piece. The shielding piece includes a base portion, elastic arm portion, and abutting portion that work together to provide shielding for both the signal terminal and mating elastic arm, reducing the need for multiple separate shielding components while maintaining comprehensive shielding effectiveness.
Solution Approach 2:
The shielding piece serves multiple functions simultaneously: it provides shielding for the signal terminal, shields the mating elastic arm, and maintains electrical contact through its abutting portion. This multi-functional design improves signal integrity without proportionally increasing device complexity.
2Device complexity
If the shielding piece structure is simplified, then device complexity is reduced, but shielding effect deteriorates
Solution Approach 1:
The shielding piece employs local quality by providing different structural characteristics in different regions. The base portion has a fixed structure for stable mounting, the elastic arm portion has elastic properties for maintaining contact pressure, and the abutting portion is designed to float and abut against the mating elastic arm. This localized structural optimization achieves effective shielding without requiring complex overall design.
Solution Approach 2:
The shielding piece incorporates dynamic elements through the elastic arm portion that can deform elastically, and the abutting portion that can float and adjust its position. This dynamic design allows the shielding structure to adapt to assembly variations and maintain effective shielding contact without requiring overly complex adjustment mechanisms.
3Reliability
If the elastic arm portion is made rigid to improve shielding stability, then shielding reliability is improved, but adaptability to deformation deteriorates
Solution Approach 1:
The elastic arm portion is designed with elastic properties that allow it to deform dynamically in response to assembly variations and external forces. This dynamic characteristic enables the shielding structure to maintain stable electrical contact and shielding effectiveness while adapting to different deformation conditions, resolving the contradiction between rigidity and adaptability.
4Reliability
If the shielding piece extends further to cover more area, then shielding coverage is improved, but ease of operation deteriorates
Solution Approach 1:
The elastic arm portion's elastic properties enable it to deform during the mating operation, allowing the shielding piece to extend its coverage area without creating excessive interference or friction during assembly. The dynamic deformation capability ensures comprehensive shielding coverage while maintaining ease of operation.
Solution Approach 2:
The elastic arm portion is pre-designed with elastic compliance that cushions the mating process. This beforehand cushioning allows the extended shielding structure to be installed without causing operational difficulties, as the elastic material absorbs assembly variations and prevents binding.
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 improves the shielding effect by providing a longer shielding section and maintaining the elastic deformation ability of the mating elastic arms, thus enhancing signal integrity and preventing short circuits.
Implementation Method 1
the elastic arm portion, the first abutting portion and the second abutting portion are deformable with the deformation of the mating elastic arm of the first ground terminal and the mating elastic arm of the second ground terminal
Data Source
AI summary
An electrical connector includes an insulating body, a terminal module and a shielding piece. The terminal module includes an insulating block and a number of conductive terminals. Each conductive terminal includes a mating elastic arm. The number of conductive terminals include a first signal terminal, a second signal terminal, a first ground terminal, and a second ground terminal. The shielding piece includes a base portion, an elastic arm portion and an abutting portion. The base portion includes a first fixing portion fixed to the first ground terminal, and a second fixing portion fixed to the second ground terminal. The abutting portion includes a first abutting portion floating in abutment against the mating elastic arm of the first ground terminal, and a second abutting portion floating in abutment against the mating elastic arm of the second ground terminal.