Mesh-Pattern Cable Harness for Bend Resistance and Fire Safety
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing cable harnesses are prone to breaking and disconnections due to frequent bending, particularly those made with PEN film, which have poor bend resistance and are vulnerable to fire.
Innovation Solution
A cable harness configuration featuring a conductor part with a mesh-type pattern and a sheath composed of PEN, PI, or PCT film, with a conductor width of at least 10 μm and space part of up to 190 μm, enhanced with electrically conductive components and stiffeners, improving flexibility and bend resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a cable harness is made with PEN film to reduce fire risk, then fire resistance is improved, but bend resistance deteriorates
Solution Approach 1:
The patent uses a composite structure combining PEN film (for fire resistance) with PI film (for bend resistance). The cable harness employs a multi-layer sheath configuration where the inner layer uses PI film to provide excellent flexibility and bend resistance, while the outer layer uses PEN film to provide fire resistance. This composite material approach allows both contradictory requirements to be satisfied simultaneously.
2Reliability
If the conductor width is increased to enhance electrical conduction, then electrical conduction capability is improved, but flexibility deteriorates
Solution Approach 1:
The patent optimizes the conductor width parameter within a specific range (10 μm to 190 μm) to achieve the best balance between electrical conduction capability and flexibility. By carefully selecting and controlling this dimensional parameter, the design ensures adequate current carrying capacity while maintaining the cable's ability to bend and flex without excessive stiffness.
3Ease of operation
If the space part is decreased to improve flexibility, then flexibility is improved, but electrical conduction capability deteriorates
Solution Approach 1:
The patent specifies that the space part should be at least 10 μm to maintain adequate electrical conduction capability while allowing sufficient flexibility. This parameter optimization ensures that the conductor pattern maintains proper electrical pathways for signal transmission while the spacing allows the cable to bend and flex during installation and use.
Data Source
AI summary
The present invention provides a configuration as follows. A cable harness comprises: a conductor part; and a sheath part for vertically sheathing the outer circumferential part of the conductor part, wherein in one side of one end part and the other end part of the conductor part, an electrical conductive part is configured at the upper part of the conductor part, and in the other side of one end part of the conductor part, a stiffener is configured at the upper part of the sheath part, and the conductor part has a mesh-type pattern part which repeatedly configures a conductor width and a space part.