Multichannel Connector Shield Housing for High-Frequency Signal Integrity
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Solution Overview
Problem
Conventional multichannel electrical connectors face challenges in ensuring reliable structure and high-frequency performance, particularly in miniaturized designs, where electromagnetic coupling and grounded potential connections are unstable, leading to interference and noise issues.
Innovation Solution
The multichannel connector features an elastically deformable inter-buckling portion for secure engagement, an inter-contacting protruding portion for stable grounded potential connection, and cut-off regions around conductive terminals to minimize solder accumulation and enhance high-frequency performance, with a shield housing that completely encloses conductive terminals for improved electromagnetic noise isolation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the connector structure is miniaturized to improve space utilization, then the space utilization is improved, but the reliability of the connector structure and grounded potential connection deteriorates
Solution Approach 1:
The shell is divided into multiple functional regions: a grounding region with grounding protrusions for electrical connection, a buffering region with buckling protrusions for mechanical engagement, and a signal transmission region. This segmentation allows each region to optimize its function independently while maintaining overall compactness, resolving the contradiction between miniaturization and connection reliability.
Solution Approach 2:
The signal pins are nested within the shielded housing formed by the shell, which itself is integrated into the compact connector body. This nested structure allows multiple functional elements (grounding paths, signal channels, mechanical interfaces) to occupy overlapping spatial volumes, achieving miniaturization without compromising grounding stability.
2Volume of moving object
If multiple signal PINs are arranged closely to improve space utilization, then the space utilization is improved, but electromagnetic coupling among signal PINs increases
Solution Approach 1:
The shell acts as an intermediary shielding structure between adjacent signal pins, providing electromagnetic isolation through its conductive grounding surface. This intermediary barrier prevents direct electromagnetic coupling between closely spaced signal pins while maintaining the compact multi-channel layout, resolving the contradiction between space utilization and electromagnetic interference.
3Object-affected harmful factors
If conventional shielding structures are used to improve electromagnetic protection, then the electromagnetic shielding is improved, but the high-frequency performance deteriorates due to solder accumulation
Solution Approach 1:
The shell incorporates a localized cut-off region with specific geometric features (protrusions and recesses) that create controlled solder flow paths. This local structural modification prevents solder accumulation at critical high-frequency interfaces while maintaining the overall shielding effectiveness, resolving the contradiction between electromagnetic protection and high-frequency performance.
4Device complexity
If the connector structure is simplified to reduce complexity, then the device complexity is reduced, but the ability to ensure stable grounded potential connection deteriorates
Solution Approach 1:
The grounding function and mechanical engagement function are merged into a single integrated shell structure. The grounding protrusions and buckling protrusions are formed as unified features of the same component, eliminating the need for separate grounding elements and mechanical interfaces. This merging reduces device complexity while ensuring stable grounded potential connection through the integrated design.
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
This design achieves a reliable grounded potential connection, superior high-frequency characteristics, and high anti-interference ability, ensuring effective signal transmission with reduced electromagnetic noise, as demonstrated by a small Voltage Standing Wave Ratio (VSWR) and excellent electromagnetic anti-noise performance.
Implementation Method 1
the shell provides with an inter-buckling portion thereon which is capable of elastically deforming
Implementation Method 2
the continuous and uninterrupted soldering region between the panel portion and the circuit board is isolated from the external environment completely, thereby achieving a superior electromagnetic anti-noise ability
Data Source
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AI summary
A multichannel connector assembly includes a plug connector comprising an insulation body, a plurality of conductive terminals, and a shield housing enclosing outside the insulation body, and a socket connector comprising an insulation base, a plurality of docking terminals housed in the insulation base, and a shell enclosing outside the insulation base. The shell includes an inter-buckling portion elastically deformable and provided with an inter-buckling protruding portion and an inter-contacting protruding portion. The inter-buckling protruding portion is capable of engaging with an opposite connector, and the inter-contacting protruding portion is capable of forming a grounded potential connection to the opposite connector by elastically deforming. A ring side portion provided by the shield housing, the base portion and the side end portions provided by the insolation body encircle to form a cut-off region where the conductive terminal soldering portion is arranged.