Cable Assembly Impedance Matching via Integrated Presser
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Solution Overview
Problem
Existing cable connectors face challenges in achieving both good assemblability and high-accuracy impedance matching due to the separate arrangement of impedance adjustment metal plates, leading to insufficient impedance matching and complex assembly structures.
Innovation Solution
A cable assembly with a connection module that integrates the exposed portion of the cable using a presser portion with higher conductivity than air, preferably metal, to press and fix the exposed portion against a rest portion, ensuring accurate impedance matching and simplified assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a metal plate for impedance adjustment is arranged in a position separated from the exposed portion, then the structure for locating and fixing the exposed portion can be constituted separately, but the impedance match becomes insufficient
Solution Approach 1:
The patent combines the impedance adjustment function and the exposed portion fixing function into a single integrated metal plate structure. This metal plate simultaneously serves as the impedance adjustment element and the fixing structure, eliminating the need for separate components and improving impedance matching accuracy while maintaining structural simplicity.
2Adaptability or versatility
If the metal plate for impedance adjustment is arranged in a position separated from the exposed portion, then the impedance adjustment function can be provided independently, but the assemblability deteriorates
Solution Approach 1:
The patent integrates multiple functions into a single metal plate component that simultaneously provides impedance adjustment and exposed portion fixing. This integration simplifies the assembly process by reducing the number of parts and assembly steps, while still maintaining the functional independence of impedance adjustment through the plate's specific geometric design.
3Manufacturing precision
If the presser portion is formed of a material having higher conductivity than air, then the impedance of the exposed portion can be made close to the impedance of the covered electrical wire, but the material selection becomes more constrained
Solution Approach 1:
The patent specifies that the presser portion should be formed of a material with higher conductivity than air (preferably metal) to achieve proper impedance matching. This parameter specification ensures that the exposed portion impedance closely matches the covered electrical wire impedance, with the contour-shaped presser face providing precise contact and impedance control.
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 achieves both good assemblability and high-accuracy impedance matching by firmly integrating the connection module with the cable, reducing parts count and improving workability while ensuring reliable impedance matching across the exposed and covered electrical wire portions.
Implementation Method 1
the presser portion presses the exposed portion of the cable against the rest portion
Implementation Method 2
the presser portion be formed of a material having a higher conductivity than air... the presser portion be formed of a metal material
Data Source
Figure 1
Figure 2~2(B)
Figure 3~3(B)
AI summary
A cable assembly (1A) is provided with a cable (10) and a connection module (20). The cable (10) is a cable accommodating a covered electrical wire (12) for differential signal transmission in a jacket (11). In addition, the connection module (20) is provided with a first assembly (22) and a second assembly (23). A rest portion (221b) for resting an exposed portion (121a) of the cable (10) where the covered electrical wire (12) is exposed is formed in the first assembly (22). In addition, a conductive presser portion (232a) for pressing the exposed portion (121a) rested on the rest portion (221b) against the rest portion (221b) is provided in the second assembly (23). Furthermore, the connection module (20) locates and retains the exposed portion (121a) by combining the first assembly (22) and the second assembly (23) with each other. A connection module (20) and a cable assembly (1A) achieving both good assemblability and high-accuracy impedance matching is provided.