Board Connector Ground Layout for Radiation Noise Suppression
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Solution Overview
Problem
Existing electric connectors hinder effective coupling between shield plates and ground layers, leading to insufficient suppression of unwanted radiation noise.
Innovation Solution
A connector device with a housing containing first and second couplers and a ground member, arranged to facilitate electrical coupling between circuit boards, with the ground member positioned between couplers to enhance noise suppression.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a shield plate is disposed to cover the electric connector, then unwanted radiation noise is suppressed, but the coupling area between the shield plate and ground is insufficient due to the connector acting as an obstacle
Solution Approach 1:
The ground member is arranged in the coupling direction (depth dimension) between the first and second couplers, rather than in the planar direction. This three-dimensional arrangement allows the ground member to be positioned without being obstructed by the couplers, thereby achieving sufficient coupling area while maintaining effective radiation noise suppression.
Solution Approach 2:
The ground member acts as an intermediary element that is electrically coupled to both the shield plate and the ground. By positioning this intermediary component in the coupling direction between the couplers, it establishes effective electrical connection paths without being blocked by the coupler structures, thus resolving the spatial conflict between noise suppression requirements and coupling area limitations.
2Area of stationary object
If the ground member is arranged in the coupling direction between couplers, then coupling area is enhanced, but device complexity increases
Solution Approach 1:
The ground member serves multiple functions simultaneously: it provides electrical coupling between the shield plate and ground, acts as a reference potential plane, and suppresses radiation noise. By integrating these multiple functions into a single component arranged in the coupling direction, the design achieves enhanced coupling area without proportionally increasing 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
Enhances the electrical coupling area between shield plates and ground layers, effectively suppressing unwanted radiation noise.
Implementation Method 1
a ground member held by the housing and electrically coupled to a counterpart ground member provided to the counterpart connector device
Implementation Method 2
it is required to make it possible to suppress the unwanted radiation noise... a shield plate for covering the electric connector is disposed to suppress the unwanted radiation noise
Data Source
AI summary
A connector device includes a housing, a plurality of first couplers each of which has a first coupling part electrically coupled to a first counterpart coupler of a counterpart connector device, a plurality of second couplers each of which has a second coupling part electrically coupled to a second counterpart coupler of the counterpart connector device, and a ground member electrically coupled to a counterpart ground member of the counterpart connector device. The first coupling parts are arranged side by side so as to be exposed from the housing along a first surface. The second coupling parts are arranged side by side so as to be exposed from the housing along a second surface. The ground member is arranged between the first couplers and the second couplers, and is arranged along a coupling direction in which the connector device and the counterpart connector device are coupled to each other.