Segmented Transmission Cable for High Density Wiring
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional transmission cables face challenges in reducing diameter while maintaining electrical performance and increasing the number of signal or power lines, particularly in medical and robotic applications where precise control and high-quality information transmission are required.
Innovation Solution
A signal transmission cable structure featuring alternating first and second coated conductor units, with a shielding material, allows for a reduction in diameter while maintaining equivalent electrical characteristics to conventional coaxial cables, enabling increased wire density and reduced outer diameter.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the number of signal lines or power lines is increased in conventional coaxial cables, then the transmission capacity is improved, but the outer diameter of the cable is increased
Solution Approach 1:
The cable is divided into multiple units, each containing one central conductor and multiple surrounding conductors. These units are arranged in a compact configuration where surrounding conductors of different units are positioned between central conductors, enabling high wire density while maintaining a small outer diameter.
Solution Approach 2:
The patent transitions from a single coaxial structure to a multi-unit three-dimensional arrangement. By stacking multiple units with alternating conductor positions and using non-circular cross-sectional shapes, the cable achieves higher transmission capacity without proportionally increasing the outer diameter.
2Length of stationary object
If the outer diameter of the cable is reduced to make apparatuses smaller and lighter, then the portability is improved, but the electrical performance is degraded
Solution Approach 1:
Each unit in the cable maintains the high-quality coaxial transmission characteristics with a central conductor surrounded by insulating resin and multiple surrounding conductors. This local optimization ensures that electrical performance is preserved in each segment while the overall cable diameter is reduced through compact unit arrangement.
Solution Approach 2:
The patent uses composite construction with insulating resin materials surrounding the conductors, replacing traditional coaxial insulation structures. This allows for more flexible and compact arrangement of conductors while maintaining electrical performance, enabling smaller cable diameter without degrading transmission quality.
3Reliability
If conventional coaxial cable structures are used, then the electrical characteristics are maintained, but the wiring density is limited
Solution Approach 1:
The cable is divided into multiple units, each containing one central conductor and multiple surrounding conductors. These units are arranged in a compact configuration where surrounding conductors of different units are positioned between central conductors, enabling high wire density while maintaining a small outer diameter.
Solution Approach 2:
Multiple conductor functions are merged into a single unit structure. Each unit contains one central conductor and multiple surrounding conductors that share the same insulating resin environment, allowing efficient space utilization and high wiring density while maintaining electrical characteristics similar to conventional coaxial cables.
Data Source
Figure 1(a)~1(c)
Figure 2(a)~2(b)
Figure 3(a)~3(c)
AI summary
There is provided a transmission cable that enables an increase in the number of wires or a further reduction in the diameter while having the electrical characteristics equivalent to those of the conventional coaxial cable. The transmission cable includes four first coated conductor units, each of which is formed by a first conductor and a dielectric formed on the outer periphery of the first conductor, and three second conductor units, each of which has approximately the same diameter as the first coated conductor unit and is disposed adjacent to the dielectric. One of the first coated conductor units is disposed at the center, and the remaining six units of the first coated conductor units and the second conductor units are disposed around the one first coated conductor unit disposed at the center so as to be adjacent to each other.