Electrical Connector Grounding Layout for Stable Signal Transmission
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Solution Overview
Problem
The length of cables used for grounding high-speed signal terminals and ground terminals affects the stability of signal transmission in electrical connectors.
Innovation Solution
An electrical connector design where first and second conductive terminals with ground terminals are connected to each other and directly mounted to a circuit board via a tail portion, eliminating the need for grounding through cables, and incorporating a ground mounting portion to enhance grounding area and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ground terminals are grounded through cables, then the grounding path is established, but the cable length increases which affects signal transmission stability
Solution Approach 1:
The patent extracts the grounding function from the cable and relocates it to the connector body. Ground terminals are directly mounted on the insulating body with grounding pads that contact the circuit board, eliminating the need for cable-based grounding. This reduces cable length and improves signal transmission stability by providing a direct grounding path.
Solution Approach 2:
The insulating body serves as an intermediary structure that integrates both signal transmission and grounding functions. It provides mounting surfaces for ground terminals and creates direct electrical contact with the circuit board through grounding pads, replacing the cable's grounding mediation role.
2Reliability
If ground terminals are directly mounted to circuit board, then grounding area increases and signal stability improves, but device complexity increases
Solution Approach 1:
The patent merges the grounding function with the connector body structure. The insulating body integrates signal terminal mounting, ground terminal mounting, and grounding contact surfaces into a single component. This consolidation increases grounding area and stability without significantly increasing overall device complexity.
Solution Approach 2:
The insulating body performs multiple functions: it provides structural support, isolates electrical signals, mounts both signal and ground terminals, and creates grounding contacts with the circuit board. This multi-functionality reduces the need for separate grounding components, maintaining device simplicity while improving grounding performance.
Data Source
AI summary
An electrical connector includes an insulating body, a number of first conductive terminals, a number of second conductive terminals, and a number of cables. The first conductive terminals include a number of first signal terminals and a number of first ground terminals. The second conductive terminals include a number of second signal terminals and a number of second ground terminals. The cables include a number of first cables electrically connected with the first signal terminals and a number of second cables electrically connected with the second signal terminals. The first ground terminals and the second ground terminals are connected to each other and are adapted to be electrically connected to a circuit board. With this arrangement, the present disclosure avoids ground return through cables, thereby simplifying the grounding method and improving the stability of signal transmission. An electrical connector assembly having the electrical connector is also disclosed.