Hybrid Connector Assembly for Power-Signal RF Isolation
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Solution Overview
Problem
Current industry standard connectors, such as FAKR connectors with SMB housings, are inadequate for supporting the high power requirements and data transfer needs of Advanced Driver Assistance Systems (ADAS) applications, particularly in autonomous vehicles, where high-resolution sensors like LiDAR generate large amounts of data that need to be transferred quickly and efficiently with low latency.
Innovation Solution
A hybrid connector system featuring a metallic plug and socket with separate cavities for power and signal cables, providing RF isolation and supporting power requirements, includes a latching shroud for secure engagement and independent environmental sealing of cables, enabling efficient data and power transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If industry standard connectors (FAKR with SMB housing) are used, then the connector structure is simple and well-established, but the power delivery capability is insufficient for high-power sensors
Solution Approach 1:
The patent combines a power connector and an RF signal connector into a single hybrid connector assembly. The power connector delivers high-voltage power to sensors, while the RF connector handles high-frequency data signals. This merging allows the system to achieve both high power delivery capability and high-speed data transfer in one integrated component, resolving the contradiction between power capability and structural simplicity.
2Object-affected harmful factors
If a single connector handles both power and signal, then the connector structure is simplified, but electromagnetic interference between power and signal cables occurs
Solution Approach 1:
The hybrid connector is segmented into distinct power connector and RF signal connector portions, each handling separate functions. The power connector accommodates power cables while the RF connector accommodates signal cables with proper shielding. This segmentation physically separates power and signal pathways, preventing electromagnetic interference while maintaining an integrated overall structure.
Solution Approach 2:
The connector housing acts as an intermediary structure that provides electromagnetic shielding and isolation between the power connector and RF signal connector. This intermediary element blocks electromagnetic fields from interfering with each other, allowing both power and signal to coexist in the same connector assembly without mutual interference.
3Reliability
If high-resolution sensors are used to improve image quality, then the data quality is improved, but the data transfer bandwidth requirement increases
Solution Approach 1:
The RF connector is designed to support multiple high-speed interface standards including GMSL 2.0, USB 3.0, and other differential signal protocols. This multi-functionality allows the same connector to handle various high-bandwidth data transfer requirements regardless of the specific sensor type or data protocol, enabling high-resolution sensor data to be transmitted at the required speeds.
4Reliability
If separate connectors are used for power and signal, then electromagnetic interference is prevented, but the connector assembly becomes more complex
Solution Approach 1:
The patent merges separate power and RF signal connectors into a single hybrid connector assembly with a unified housing and mounting structure. While the internal components remain separate to prevent interference, the external integration simplifies installation and reduces the number of separate components needed, achieving both reliability through separation and simplicity through integration.
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 hybrid connector system ensures reliable, high-speed data transfer with low latency and supports the power needs of ADAS systems, enhancing safety and efficiency by preventing electromagnetic interference and ensuring secure, reliable connections.
Implementation Method 1
A hybrid connector system featuring a metallic plug and socket with separate cavities for power and signal cables, providing RF isolation
Data Source
AI summary
A hybrid plug. The hybrid plug includes a metallic plug body and a latching shroud connected to the plug body. The latching shroud is configured for engaging with a corresponding hybrid socket. The plug body has a first cavity for receiving a power cable for delivering power, and further has a second cavity for receiving a signal cable for carrying a data signal.