Board Connector Shield Structure for Signal Leakage Isolation
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Solution Overview
Problem
As the number of inner conductors in a board connector increases, crosstalk between signals can occur, leading to reduced communication performance.
Innovation Solution
A board connector design featuring a metal outer conductor with side walls and a partition wall, connected to the circuit board's conductive paths, which provides electromagnetic symmetry and suppresses signal leakage between inner conductors, improving communication performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the number of inner conductors is increased to enhance connectivity, then the communication capability is improved, but crosstalk between signals occurs and communication performance is reduced
Solution Approach 1:
The outer conductor is segmented into multiple partition walls that divide the internal space into separate regions. Each region accommodates one or more inner conductors, physically isolating them from adjacent conductors. This segmentation prevents electromagnetic coupling between neighboring inner conductors, thereby suppressing crosstalk while allowing an increased number of conductors to be packed into the connector housing.
Solution Approach 2:
The partition walls act as intermediary structures between adjacent inner conductors. These metallic partitions serve as electromagnetic shields that reflect and block electromagnetic fields, preventing direct interaction between signals on neighboring conductors. The partition walls mediate the electromagnetic environment, allowing high-density conductor arrangement without sacrificing signal integrity.
2Object-affected harmful factors
If inner conductors are surrounded by an outer conductor to suppress external noise, then noise suppression is improved, but signal leakage between inner conductors occurs
Solution Approach 1:
The continuous outer conductor is divided into multiple partition walls that create separate compartments for each inner conductor. This segmentation maintains the shielding effect against external noise while simultaneously preventing signal leakage between adjacent conductors by introducing electromagnetic barriers (partition walls) between them.
Solution Approach 2:
Different regions of the outer conductor have different functions: the outer surface provides noise shielding from external environments, while the internal partition walls provide isolation between inner conductors. Each partition wall is selectively positioned to separate specific adjacent conductors, creating localized electromagnetic isolation zones where signal leakage is suppressed.
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 effectively suppresses signal leakage between inner conductors, enhancing the communication performance of the board connector by improving electromagnetic symmetry and reducing crosstalk.
Implementation Method 1
an outer conductor made of metal to be attached to the connector housing, the outer conductor covering the plurality of inner conductors while being electrically insulated from the plurality of inner conductors
Implementation Method 2
a partition wall disposed between the two side walls and between the plurality of inner conductors
Data Source
AI summary
A board connector to be connected to a circuit board including an electrically conductive path is provided with a connector housing to be connected to a mating connector, a plurality of inner conductors to be mounted into the connector housing and connected to the electrically conductive path of the circuit board, and an outer conductor made of metal to be attached to the connector housing and configured to cover the plurality of inner conductors while being electrically insulated from the plurality of inner conductors. The outer conductor includes two side walls and a partition wall disposed between the two side walls and between the plurality of inner conductors. Side wall connecting portions to be connected to the electrically conductive path of the circuit board project on lower end parts of the two side walls.