Endoscope Cable Connection Structure Preventing Core Wire Bending
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Solution Overview
Problem
Existing endoscope cable connection technologies face challenges in securely connecting core wires to substrates without positional misalignment and bending, which can lead to disconnection issues.
Innovation Solution
A cable connection structure featuring a substrate with strategically arranged core wire connection electrodes and a method involving a connection tool and backup member to extend and secure core wires to the electrodes, preventing bending and ensuring reliable connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a groove is formed on the substrate to fit the core wire and shield line, then positional misalignment is prevented and connection reliability is improved, but the substrate structure becomes more complex and manufacturing difficulty increases
Solution Approach 1:
Instead of forming a groove in the substrate to fit the cable, the patent inverts the approach by having the cable structure adapt to the substrate surface. The core wire connection electrode is extended to protrude from the substrate, and the cable is configured to connect to this extended electrode, reversing the traditional groove-fitting approach and simplifying the substrate structure while maintaining connection reliability
Solution Approach 2:
The patent transitions from a two-dimensional groove structure on the substrate surface to a three-dimensional extended electrode structure. The core wire connection electrode protrudes vertically from the substrate surface, creating a dimensional change that enables reliable connection without requiring complex groove structures, thus resolving the contradiction between connection reliability and substrate complexity
2Reliability
If the core wire is secured without bending, then connection reliability is improved, but the mounting area on the substrate increases
Solution Approach 1:
The patent employs curved or bent electrode traces on the substrate surface that extend to meet the cable connection point. This curved path allows the core wire connection electrode to reach the cable without requiring the wire itself to bend, accommodating the connection within a compact area while preventing wire bending and maintaining connection reliability
3Adaptability or versatility
If multiple cables are connected to transmit power and signals, then functional capability is improved, but the risk of positional misalignment and bending increases
Solution Approach 1:
The patent creates a universal connection structure where the extended core wire connection electrode can accommodate multiple cables (power cables, signal cables, etc.) using the same fundamental connection mechanism. This multi-functional design allows different types of cables to be connected reliably without positional misalignment or bending, enhancing functional capability while maintaining connection reliability across all cable types
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
This solution effectively prevents core wire bending and disconnection, allowing for a compact endoscope design with reduced mounting area and improved reliability.
Implementation Method 1
applying pressure and heat to a core wire of the cable and a core wire connection electrode
Implementation Method 2
applying pressure and heat to a core wire of the cable and a core wire connection electrode
Data Source
AI summary
A cable connection structure includes: a substrate that includes: an opening; and a core wire connection electrode that is arranged on one of a principle surface and an inner layer across the opening; a cable that is arranged on a principle surface side of the substrate and includes a core wire that is electrically connected to the core wire connection electrode, the core wire connection electrode being extended so as to be separated from the substrate, the core wire connection electrode being connected to the core wire.