PCB Cable Connection Structure for Signal-Ground Isolation
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Solution Overview
Problem
Existing electronic devices face challenges in efficiently connecting cables to printed circuit boards while ensuring electrical connectivity and structural integrity, particularly in devices with multiple components and complex configurations.
Innovation Solution
A cable connection structure is introduced, comprising a cable tube with conductive tubes for signal and ground wires, and a cable connection member that electrically connects these tubes to the printed circuit board, along with a manufacturing process that includes processing cable ends, mounting insulating and ground tubes, and assembling signal tubes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a cable connection structure with multiple conductive tubes and connection members is used, then electrical connectivity and structural integrity are improved, but device complexity increases
Solution Approach 1:
The cable connection structure is divided into separate functional components: a cable tube with first and second conductive tubes for signal and ground wires, and a cable connection member with corresponding connection parts. This segmentation allows each component to perform its specific function efficiently while simplifying the overall assembly process and reducing complexity.
Solution Approach 2:
The cable tube acts as an intermediary component between the cable and the cable connection member. It provides a structured interface that organizes multiple wires (signal and ground) and facilitates their connection to the circuit board through the connection member, simplifying the connection process while maintaining reliability.
2Strength
If a cable connection structure with multiple conductive tubes and connection members is used, then structural integrity is improved, but device complexity increases
Solution Approach 1:
The cable tube integrates multiple functions into a single component: it houses both the first conductive tube (signal wire) and the second conductive tube (ground wire), provides insulation between them, and facilitates connection to the circuit board through the cable connection member. This merging reduces the number of separate components needed while maintaining structural integrity.
Solution Approach 2:
The cable connection structure employs composite construction with conductive materials for the conductive tubes (providing electrical connectivity) and insulating materials for the cable tube body (providing structural support and electrical isolation). This composite approach enhances both structural integrity and electrical performance while keeping the design efficient.
3Reliability
If separate conductive tubes for signal and ground wires are used, then electrical isolation and signal integrity are improved, but manufacturing complexity increases
Solution Approach 1:
The cable tube is designed with pre-defined openings and internal structures that guide the signal wire and ground wire into their respective conductive tubes during assembly. This preliminary structuring of the cable tube simplifies the manufacturing process by providing built-in guidance mechanisms that reduce assembly complexity while maintaining signal integrity through proper wire separation and isolation.
Data Source
AI summary
According to an embodiment, provided is an electronic device. The electronic device includes: a printed circuit board; a cable including a signal wire, a ground wire, and an insulating cover that surrounds the signal wire and the ground wire; a cable tube surrounding the end of the cable; and a cable connection member arranged on the printed circuit board. The cable tube may include: a first conductive tube electrically connected to the signal wire; and a second conductive tube spaced apart from the first conductive tube and electrically connected to the ground wire. The cable connection member may include: a first connection member electrically connected to the first conductive tube; and a second connection member electrically connected to the second conductive tube.