Connector Module Ground Terminal Clamping for Stable Shielding
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Solution Overview
Problem
In existing connectors with power and signal terminals, the ground terminal, which is in contact with the shielding shell, is often suspended and not fixed, leading to unstable electrical contact and compromised grounding and electromagnetic shielding effects.
Innovation Solution
A connector module design featuring a shielding shell with a terminal clamping portion that securely clamps the ground terminal to the shielding shell using elastic claws, ensuring stable electrical contact through a conical pressing surface and insertion into a terminal holding portion of an inner insulator.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the ground terminal is positioned outside the shielding shell for improved grounding effect, then the electromagnetic shielding effect is enhanced, but the ground terminal becomes suspended and unstable, resulting in poor electrical contact
Solution Approach 1:
The solution divides the grounding function into two parts: the ground terminal body remains outside the shielding shell for effective grounding, while a separate clamping structure (terminal clamping portion with elastic claws) is added to secure the ground terminal to the shielding shell, thus maintaining both grounding effectiveness and contact stability
Solution Approach 2:
The ground terminal is extended in a new dimension by adding the terminal clamping portion that protrudes from the shielding shell and engages with the inner insulator, creating a three-dimensional securing mechanism that stabilizes the ground terminal without compromising its external grounding position
2Object-affected harmful factors
If the ground terminal is placed outside the shielding shell, then the shielding effect is improved, but the ground terminal shakes and causes unstable electrical contact
Solution Approach 1:
The terminal clamping portion is pre-configured with elastic claws that automatically engage with the inner insulator when assembled, providing preliminary stabilization of the ground terminal before any vibration or shaking occurs, thus preventing unstable electrical contact
Solution Approach 2:
The elastic claws of the terminal clamping portion utilize material elasticity to maintain constant contact pressure on the ground terminal, compensating for vibrations and movements, thus ensuring stable electrical contact despite the ground terminal being positioned outside the shielding shell
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 design provides reliable electrical contact and improved grounding and electromagnetic shielding by preventing the ground terminal from shaking, enhancing the overall shielding effect.
Implementation Method 1
The terminal clamping portion clamps the ground terminal to electrically connect the ground terminal to the shielding shell
Data Source
AI summary
A connector module comprises a shielding shell, an inner insulator, a signal terminal, and a ground terminal. The shielding shell includes a shell body having an inner cavity and a terminal clamping portion located outside the shell body and connected to the shell body. The inner insulator includes an insulating body housed in the inner cavity of the shell body and a terminal holding portion protruding to the outside of the shell body. The signal terminal is located in the inner cavity of the shell body and is fixed to the insulating body. The ground terminal is located outside of the shell body and is inserted into the terminal holding portion of the inner insulator. The terminal clamping portion of the shielding shell clamps the ground terminal to electrically connect the ground terminal to the shielding shell.