Coaxial Terminal Connection Structure for Compact Cable Assembly
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Solution Overview
Problem
Conventional coaxial electric cable terminal connection structures become bulky, leading to space inefficiencies and potential issues with connection workability and electrical continuity due to variable terminal spacing and impedance discordance.
Innovation Solution
A terminal connection structure where internal and external conductor terminals are arranged coaxially at a constant interval within a housing, with separate cylindrical structures to prevent short circuits and facilitate impedance matching, using press-fitting and locking mechanisms for secure connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If connection terminals are arranged in parallel to connect multiple conductors, then connection capability is improved, but terminal connection part size increases
Solution Approach 1:
The patent applies nesting by placing the first terminal inside the second terminal, forming a concentric arrangement where the internal conductor terminal is nested within the external conductor terminal. This nested configuration allows multiple terminals to occupy the same spatial region, significantly reducing the overall volume of the terminal connection part while maintaining the capability to connect multiple conductors.
Solution Approach 2:
The patent transitions from a planar parallel arrangement of terminals to a three-dimensional concentric arrangement. By utilizing the radial dimension and arranging terminals in nested circles rather than side-by-side in a plane, the design achieves compactness while preserving multi-conductor connection capability.
2Adaptability or versatility
If connection terminals are arranged in parallel with non-constant intervals, then connection flexibility is improved, but connection workability and electrical continuity deteriorate
Solution Approach 1:
The patent applies local quality by assigning different functional characteristics to different regions of the terminal structure. The constant interval arrangement in the radial direction ensures uniform electrical properties and impedance control, while the nested configuration provides structural organization. This localized optimization of spacing maintains both flexibility and reliability.
Solution Approach 2:
The patent controls the spacing parameter between terminals by maintaining constant intervals in the radial arrangement. This parameter control ensures uniform impedance characteristics and predictable electrical continuity, while the overall nested structure provides the necessary flexibility for different conductor configurations.
3Volume of moving object
If terminal connection part size is reduced, then space efficiency is improved, but connection workability may deteriorate
Solution Approach 1:
The nested terminal arrangement compresses multiple connection points into a compact concentric structure, dramatically reducing the volume of the terminal connection part. Despite this compactness, the clear hierarchical structure and standardized interfaces maintain ease of connection operations.
Solution Approach 2:
The patent segments the terminal connection structure into distinct functional zones: the internal terminal for the inner conductor, the external terminal for the outer conductor, and insulating barriers between them. This segmentation allows each component to be independently positioned and connected, improving workability within the compact nested form factor.
Data Source
Figure 1(a)~1(b)
Figure 2
Figure 3(a)~3(b)
AI summary
This terminal connection structure for an electric cable is provided with: a first terminal (5) that connects at a location where an inner conductor (2) is exposed by peeling off a first insulation cover (21); a cylindrical second terminal (6) that surrounds the outer periphery of the first terminal (5), and connects at a location where an outer conductor (3) is exposed by peeling off a second insulation cover (31); and a housing member (7) that surrounds the outer periphery of the first terminal (5), surrounds the outer periphery of the second terminal (6), and coaxially separates and accommodates the first terminal (5) and the second terminal (6).