Luminescent Cable Loose Jacket Structure for Bending Durability
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Solution Overview
Problem
Luminescent cables in special environments suffer from low tensile strength, bending resistance, and vulnerability to extrusion due to thin conductor wires, leading to frequent damage and short service life.
Innovation Solution
A light-emitting device for luminescent cables featuring a slidable loose jacket layer surrounding a light strip, filled with a buffer medium, and a transparent sheath layer to enhance flexibility and protect against external forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the conductor wires of the light strip are made thin to reduce cable diameter and cost, then the cable becomes more economical and compact, but the tensile strength decreases and the wires break easily under small forces
Solution Approach 1:
The cable structure is segmented into multiple independent light strips, each enclosed in its own loose jacket layer. This segmentation allows each light strip to be protected independently while maintaining overall cable flexibility. The loose jacket layer acts as an independent protective compartment that prevents force transmission between adjacent light strips.
Solution Approach 2:
The loose jacket layer provides beforehand cushioning protection for the light strip and its thin conductor wires. By creating a loose fitting enclosure with gaps between the light strip and jacket layer, the structure absorbs and dissipates external forces before they can reach the vulnerable conductor wires, preventing breakage under small forces.
2Ease of manufacture
If the conductor wires are made thin to reduce material cost, then manufacturing cost decreases, but the light strip becomes vulnerable to bending damage and repeated bending causes wire breakage
Solution Approach 1:
The loose jacket layer provides beforehand cushioning protection during bending operations. The gaps between the light strip and the loose jacket layer allow the light strip to move and deform independently during bending, preventing stress concentration on the thin conductor wires. This cushioning effect absorbs bending stresses before they can cause wire breakage.
Solution Approach 2:
The loose jacket layer creates a dynamic protective structure where the light strip can move and adjust its position relative to the jacket layer during bending. This dynamic arrangement allows the light strip to accommodate bending deformations without rigid constraints, preventing wire breakage while maintaining thin conductor wires for cost-effectiveness.
3Device complexity
If no protective layer is added outside the light strip to maintain simple structure, then device complexity remains low, but the light strip cannot resist strong extrusion force from vehicles or ores
Solution Approach 1:
The protective structure is segmented into multiple loose jacket layers, each protecting individual light strips. This segmentation approach provides effective protection against extrusion forces while keeping each protective unit simple and manageable. The loose fitting design of each jacket layer maintains structural simplicity while collectively providing robust extrusion resistance.
Solution Approach 2:
The loose jacket layer provides beforehand cushioning protection against strong extrusion forces from vehicles or ores. The loose fitting design with gaps between the light strip and jacket layer allows the protective layer to absorb and dissipate impact forces before they reach the light strip, enabling resistance to strong extrusion without adding complex protective mechanisms.
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 enhances the durability of luminescent cables by allowing the light strip to slide and buffer external forces, preventing damage from bending and crushing, thus extending the cable's service life.
Implementation Method 1
the light strip is slidable relative to the loose jacket layer
Implementation Method 2
The gap between the light strip and the loose jacket layer can be filled with a buffer medium
Data Source
AI summary
Provided is a light-emitting device for a luminescent cable, relating to the technical field of luminescent cable. The light-emitting device for a luminescent cable includes a light strip capable of emitting light and a loose jacket layer. The loose jacket layer sleeves the light strip, the light strip is slidable relative to the loose jacket layer, and at least portion of the loose jacket layer is made of a light-transmitting material. A luminescent cable is further provided. When the luminescent cable is bent and stretched, the light strip is slidable in the loose jacket layer to adapt to the stretching and bending of the luminescent cable, thus preventing the light strip from being damaged due to excessive stretching force. Therefore, the durability of the light strip in the luminescent cable can be greatly improved, when the luminescent cable with the light strip is subjected to external forces such as tension, torsion, bending, impact force and the like, the light strip is not easy to be damaged, and thus the luminescent cable is durable in an open-pit mine and an underground mine with harsh environmental conditions.