Fluorescent Water-Stop Agent for Electrical Wire Adherence Inspection
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Solution Overview
Problem
Existing water-stop structures for electrical wires, particularly those using transparent or light-colored water-stop agents, face challenges in visually confirming the adherence state of the agent, making it difficult to determine if the agent has been properly filled into the insulation coating portion.
Innovation Solution
Incorporating a fluorescent agent into the water-stop agent, which allows for easy visual confirmation by flashing under black light irradiation, ensuring proper filling and adherence within the electrical wire's insulation coating portion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a transparent or light-colored water-stop agent is used, then the water-stop structure maintains good electrical insulation and corrosion resistance, but it becomes difficult to visually confirm the adherence state and proper filling of the agent
Solution Approach 1:
The patent applies color changes by incorporating fluorescent particles into the water-stop agent. These fluorescent particles remain invisible under normal lighting conditions but emit visible light when exposed to ultraviolet light, allowing operators to easily detect the adherence state and filling status of the water-stop agent without compromising its transparent, insulating, and corrosion-resistant properties.
2Use of energy by moving object
If the water-stop agent is made transparent for aesthetic and insulation purposes, then the electrical wire maintains good electrical properties, but the inspection process becomes more complex and time-consuming
Solution Approach 1:
The fluorescent particles enable rapid visual inspection under ultraviolet light, dramatically reducing inspection time compared to attempting to visually detect transparent agent distribution. The color change effect allows operators to immediately see where the agent has adhered and filled properly.
Solution Approach 2:
The fluorescent particles act as an intermediary substance that does not interfere with the electrical insulation properties of the transparent water-stop agent but provides a detection mechanism. The particles are embedded within the agent and respond to ultraviolet light, serving as a mediator between the invisible agent and the human eye.
3Difficulty of detecting and measuring
If a opaque water-stop agent is used to improve visual detection, then the adherence state becomes easily visible, but the electrical insulation performance and corrosion resistance are compromised
Solution Approach 1:
The patent resolves this contradiction by using fluorescent particles that only exhibit their color-changing property when exposed to ultraviolet light. Under normal lighting conditions, the water-stop agent remains transparent, preserving its electrical insulation and corrosion resistance. During inspection, ultraviolet light is applied, causing the fluorescent particles to glow and reveal the adherence state.
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 fluorescent agent enables clear visual inspection of the adherence state, ensuring the water-stop agent is suitably filled, thereby enhancing the reliability of the water-stop structure and preventing water intrusion into the electrical wire.
Implementation Method 1
the water-stop agent includes a fluorescent agent
Implementation Method 2
the water-stop agent is filled into a gap in the insulation coating portion
Implementation Method 3
the water may pass through the electrical wire to reach the other end side... due to weight of water, capillary action
Data Source
AI summary
A water-stop structure for electrical wire includes: a terminal including an electrical wire connection portion; and an electrical wire in which an outer circumference of a conductor including a plurality of single wires is coated with an insulation coating portion and which is swaged to be fixed to the electrical wire connection portion, a water-stop agent being filled into a gap in the insulation coating portion to thereby perform water stop in the electrical wire. The water-stop agent includes a fluorescent agent.