Connector Separation Wall Gap to Suppress Terminal Impedance Drop
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Solution Overview
Problem
In connectors with a housing containing a separation wall, the impedance of terminals near the separation wall tends to drop excessively.
Innovation Solution
Incorporating a gap portion between opposing faces of the separation wall to raise the impedance of terminals in proximity to the gap, with additional features like restricting faces to maintain terminal position and prevent shorting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separation wall is formed from an insulator material in the housing, then the terminals are electrically isolated, but the impedance of contact portions near the separation wall drops excessively
Solution Approach 1:
A gap portion is introduced as an intermediary space between the contact portion and the separation wall. This gap acts as a mediator that prevents direct interaction between the conductive contact portion and the insulating separation wall, thereby maintaining proper impedance levels while still allowing the separation wall to provide electrical isolation functionality.
Solution Approach 2:
The physical configuration parameter of the separation wall is changed by introducing a gap portion that extends from one surface toward the other surface. This parameter change modifies the electromagnetic field distribution near the contact portion, preventing excessive impedance drop while maintaining the insulating function.
2Volume of moving object
If the separation wall is positioned close to terminals for compact design, then the housing size is reduced, but the impedance of adjacent terminals drops excessively
Solution Approach 1:
The separation wall is segmented by introducing a gap portion that divides the wall structure into multiple sections. This segmentation allows the separation wall to maintain its insulating function while creating a controlled space that prevents impedance drop, enabling compact design without sacrificing electrical performance.
Solution Approach 2:
The gap portion is strategically positioned only in the region where contact portions are located, creating a local modification to the separation wall structure. This local quality change addresses the impedance issue specifically at the critical interface between terminals and separation wall, while maintaining overall compact housing dimensions.
3Reliability
If opposing faces of the separation wall are positioned close together, then the separation wall provides effective electrical isolation, but the impedance of nearby terminals drops excessively
Solution Approach 1:
The gap portion serves as an intermediary element between the opposing faces of the separation wall. It allows the separation wall to maintain effective electrical isolation through the insulating material while the gap itself prevents direct electromagnetic coupling that would cause impedance drop in adjacent terminals.
Data Source
AI summary
In connectors including a housing having a separation wall, an impedance of a portion of a terminal in close proximity to the separation wall is suppressed from dropping excessively.Housings of the connector include a separation wall positioned between adjacent terminals. The separation wall includes a one-side opposing face and an other-side opposing face. Furthermore, the separation wall is formed between the one-side opposing face and the other-side opposing face, and includes a gap portion positioned between the adjacent terminals.