Shielded Electrical Connector Assembly With PCB-Mediated Cable Grounding
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electrical connector assemblies require precise one-to-one welding of cables and terminals, making them difficult to manufacture and limiting the flexibility in terminal arrangement and number, while also lacking effective grounding and shielding performance.
Innovation Solution
An electrical connector assembly with an internal circuit board connecting the cable to a connection module, which includes conductive terminals, and a shielding case that forms a grounding connection with the circuit board through a conductive mounting post and fastener, eliminating the need for one-to-one welding and enhancing grounding and shielding performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If one-to-one welding is used to connect cables and terminals, then reliable electrical connection is achieved, but manufacturing complexity and difficulty increase significantly
Solution Approach 1:
The patent introduces a circuit board as an intermediary component between cables and terminals. The circuit board provides standardized mounting holes and conductive traces that simplify connections. Cables connect to the circuit board through standardized connectors, and terminals are mounted on the circuit board through holes with soldering, eliminating the need for complex one-to-one welding between cables and terminals while maintaining reliable electrical connections.
2Manufacturing precision
If one-to-one welding is used to connect cables and terminals, then precise electrical connection is achieved, but manufacturing time and productivity decrease
Solution Approach 1:
The patent segments the connection process into independent stages: cable connections to the circuit board are made through standardized connectors, while terminal connections are made through standardized mounting holes and soldering. This segmentation allows parallel processing and assembly, significantly improving manufacturing productivity while maintaining precise electrical connections through the circuit board's conductive traces.
3Stability of the object's composition
If fixed terminal arrangement is used, then manufacturing consistency is maintained, but design flexibility and adaptability are reduced
Solution Approach 1:
The circuit board serves as a universal platform with standardized mounting holes and conductive trace patterns that can accommodate different terminal configurations. The standardized hole patterns allow terminals to be arranged in various configurations while maintaining consistent manufacturing processes. This universal platform enables the same circuit board design to support multiple terminal arrangements and product variants.
4Device complexity
If traditional connector design is used, then simple structure is maintained, but grounding and shielding performance are insufficient
Solution Approach 1:
The patent merges multiple functions into the circuit board: it serves as the electrical connection platform, the grounding reference plane, and the shielding reference structure. The circuit board's ground layers and metallic enclosure work together to provide comprehensive shielding and grounding. This integration maintains relative structural simplicity while significantly improving grounding and shielding performance compared to traditional separate-component designs.
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 solution provides improved grounding and shielding performance, meets high-frequency requirements, and allows for flexible arrangement and number of conductive terminals, stabilizing connections between the cable, internal circuit board, and external circuit board.
Implementation Method 1
installing one end of a conductive mounting post in the mounting hole of the shielding case and connecting the other end of the conductive mounting post to the internal circuit board to establish an electrical connection between the shielding case and the internal circuit board
Data Source
AI summary
An electrical connector assembly for mounting to an external circuit board includes: a cable; a connector having a connection module electrically connected with the cable and the external circuit board, the connection module having an insulating body and plural conductive terminals disposed in the insulating body; a shielding case disposed outside the connector; and a fixing member for fastening the connector and the shielding case to the external circuit board, wherein the connector comprises an internal circuit board connecting to the cable and the connection module, and the shielding case forms a grounding connection with the internal circuit board through the fixing member.