Robust Connector Layout for EMI Isolation in Active Cables
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Solution Overview
Problem
Existing electrical connectors face challenges in maintaining high-quality signal transmission while being compact and robust, especially in thinner electronic devices, where they may suffer from electromagnetic interference (EMI) and premature breakage due to repeated mating and unmating operations.
Innovation Solution
The design incorporates multiple terminal assemblies with a predetermined center-to-center distance of at least 4.13 mm, arranged to minimize EMI, and includes active cables with integrated circuitry to process signals and enhance transmission quality, along with structural components for increased robustness and reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If terminal assemblies are placed closer together to reduce connector size, then the connector becomes more compact, but electromagnetic interference increases reducing signal transmission quality
Solution Approach 1:
A partition wall is introduced as an intermediary structure between adjacent terminal assemblies having different specifications. This partition wall acts as a barrier that blocks electromagnetic fields from interfering with each other, allowing terminal assemblies to be placed closer together while maintaining signal transmission quality.
Solution Approach 2:
The connector housing is segmented into multiple compartments by partition walls, creating separate regions for different terminal assemblies. This segmentation isolates electromagnetic fields within each compartment, reducing EMI while enabling compact arrangement of multiple terminal types.
2Length of moving object
If the connector structure is made thinner to accommodate compact devices, then the connector fits better in thin devices, but robustness against fatigue and breakage decreases
Solution Approach 1:
The connector housing is constructed using composite materials that combine high strength with thin profile. This allows the connector to maintain robustness and resistance to fatigue and breakage while achieving the reduced thickness required for compact electronic devices.
Solution Approach 2:
The connector structure implements local quality enhancement by concentrating structural reinforcement at critical stress points and mating interfaces. This allows the overall connector to be thinner while maintaining robustness where it is most needed, particularly in areas subject to repeated mating and unmating operations.
3Adaptability or versatility
If multiple terminal assemblies with different specifications are placed adjacent to each other, then the connector can handle multiple transmission purposes, but electromagnetic interference is generated reducing signal quality
Solution Approach 1:
Partition walls serve as intermediary structures between terminal assemblies with different specifications (e.g., high-power and signal terminals). These partition walls block electromagnetic interference while allowing the connector to maintain its multi-transmission capability by properly accommodating different terminal types in adjacent positions.
Data Source
AI summary
Robust connectors and active connectors therewith are provided. A receptacle connector includes first and second terminal assemblies disposed in a same housing slot and separated from each other by a predetermined space. Such a configuration enables the first and second terminal assemblies to be configured according to physical dimensions of various interface standards while simultaneously satisfying respective electrical requirements. The receptacle connector is connected to an end of a cable directly or through a plug connector. The plug connector comprises a circuit board having first and second groups of contact pads aligned in a row and spaced from each other so as to respectively mate with the first and second terminal assemblies of the receptacle connector. The circuit board has a third group of contact pads configured more suitable for attaching the cable. The third group is electrically coupled to the first and second groups.