Shielded Connector Assembly for Short-Circuit-Free Signal Mating
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Solution Overview
Problem
Conventional electrical connectors are prone to short-circuiting due to contact portions of signal terminals abutting the shielding shell, leading to interference and degradation of high-frequency characteristics.
Innovation Solution
The design includes a naked spacing region in the first shielding shell, exposing at least one contact portion, while the second shielding shell covers this region, preventing contact with the first shielding shell and shielding against external interference, thus enhancing high-frequency performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the first shielding shell fully covers the first signal terminals, then the shielding effect is improved, but the contact portions may contact the shielding shell causing short-circuiting
Solution Approach 1:
The first shielding shell is segmented by creating a naked spacing region that exposes the contact portions of the signal terminals. This segmentation allows the shielding shell to cover most of the signal terminals for electromagnetic shielding while leaving specific regions uncovered to prevent contact and short-circuiting between contact portions and the shielding shell.
2Reliability
If the contact portions are exposed to prevent short-circuiting, then the short-circuit risk is reduced, but the shielding effect deteriorates
Solution Approach 1:
The second shielding shell is nested inside the first shielding shell, with the second shielding shell covering the naked spacing region where the contact portions are exposed. This nested structure provides dual-layer shielding: the first shielding shell shields the outer region, while the second shielding shell specifically shields the exposed contact portions, maintaining overall shielding effectiveness while preventing short-circuiting.
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
Prevents short-circuiting and maintains high-frequency characteristics by isolating contact portions from the shielding shell and shielding against external interference, improving the electrical connecting assembly's performance.
Implementation Method 1
the second shielding shell covers outside the first shielding shell and shields the at least one naked spacing region
Data Source
AI summary
An electrical connecting assembly includes an electrical connector including a first terminal assembly, and a mating connector including a second terminal assembly. The first terminal assembly includes a first shielding shell covering outside a pair of first signal terminals. Each first signal terminal has a first contact portion. The second terminal assembly includes a second shielding shell covering outside a pair of second signal terminals. Each second signal terminal has a second contact portion. The first shielding shell is provided with at least one naked spacing region. When mating of the electrical connector and the mating connector is complete, the second shielding shell covers outside the first shielding shell and shields the naked spacing region, the first contact portion and the corresponding second contact portion are mated, and at least one of the first and second contact portions is exposed in the naked spacing region.