Hybrid Connector Shielding Layout for Power-Signal EMI Isolation
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Solution Overview
Problem
Existing hybrid connectors face significant electromagnetic interference between power and signal terminals, degrading signal transmission quality.
Innovation Solution
A connector design featuring a shielding member with an integrated shield shell and sheet, separating power and signal terminals within an insulator slot to prevent electromagnetic interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If power terminal and signal terminal are arranged in close proximity in a hybrid connector, then the connector structure is compact and integration is high, but electromagnetic interference occurs between power terminal and signal terminal degrading signal transmission quality
Solution Approach 1:
The connector internal space is segmented into a power transmission region and a signal transmission region by the insulator body. The insulator body physically divides the connector into distinct zones: a first region for power terminals and a second region for signal terminals. This spatial segmentation prevents electromagnetic interference while maintaining compact integration.
Solution Approach 2:
The insulator body acts as an intermediary element between power terminals and signal terminals. It provides physical separation and electrical isolation, preventing direct electromagnetic coupling between power and signal paths while allowing both to coexist in the same connector housing.
2Power
If power terminal transmits high current up to 8 amps, then power transmission capability is sufficient, but serious electromagnetic interference is generated affecting signal terminal
Solution Approach 1:
The connector is divided into separate power transmission region and signal transmission region through the insulator body. This segmentation allows high current (up to 8 amps) to flow through power terminals in the first region without generating electromagnetic interference that would affect signal terminals in the second region.
Solution Approach 2:
The insulator body provides localized electromagnetic shielding and isolation specifically at the interface between power and signal regions. Different regions of the connector have different functional properties: the power region accommodates high current with appropriate clearance, while the signal region maintains controlled impedance and shielding, with the insulator providing the transition zone between these different local qualities.
3Object-affected harmful factors
If power terminal and signal terminal are separated spatially to prevent electromagnetic interference, then signal transmission quality is improved, but connector structure becomes more complex
Solution Approach 1:
The insulator body simultaneously performs multiple functions: it provides mechanical support for terminals, creates spatial separation between power and signal regions, provides electrical insulation, and establishes defined transmission paths. By merging these functions into a single component, the design achieves effective separation without proportionally increasing overall connector complexity.
Solution Approach 2:
The insulator body is designed as a multi-functional component that combines structural support, electromagnetic isolation, and path definition functions. This universal component approach allows spatial separation of power and signal terminals while avoiding the need for additional separate shielding structures or complex assembly steps.
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
Effectively isolates power and signal terminals, enhancing signal transmission quality by mitigating electromagnetic interference.
Implementation Method 1
a shielding member comprising a shield shell (11) and a shield sheet (12) disposed in the shield shell (11)... the shield sheet (12) and the shield shell (11) are formed into an integral piece... to prevent electromagnetic interference between the signal terminal and the power terminal
Data Source
AI summary
A connector includes a shielding member having a shield shell and a shield sheet disposed in the shield shell, an insulator having an end inserted into the shield shell, and a plurality of terminals arranged in the insulator. The shield sheet and the shield shell are formed into an integral piece. The insulator has a slot in which the shield sheet is inserted. The plurality of terminals include a power terminal and a signal terminal. The power terminal and the signal terminal are separated by the shield sheet to prevent electromagnetic interference between the signal terminal and the power terminal.