Stranded Electric Wire Fence With Alternating Twist
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Solution Overview
Problem
Conventional electric wire fences face issues with visibility, mechanical strength, and electrical conductivity, particularly for horse enclosures, where simple steel wires are prone to injury and moisture-related efficiency losses.
Innovation Solution
A stranded electric wire fence system with a non-insulated steel wire and a coated steel wire twisted together in alternating directions, providing enhanced visibility and flexibility, and local electrical connections between the wires to maintain voltage, reducing injury risks and tension losses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If simple steel wire is used for electric fencing, then the fence can be implemented at low costs, but the visibility is poor and the risk of injury increases
Solution Approach 1:
The electric fence wire is segmented into multiple strands (typically 3-7 strands) twisted together, where at least one strand is colored while others remain standard steel wire. This segmentation allows the fence to maintain the cost-effectiveness of simple steel wire while incorporating colored segments that significantly improve visibility for animals.
Solution Approach 2:
Instead of coloring the entire wire structure, only specific local segments (strands) are colored while other segments remain as standard steel wire. This local application of color enhances visibility where most needed (at the wire level) while maintaining cost-effectiveness and the electrical conductivity properties of the steel wire.
2Ease of manufacture
If small diameter wire is used, then the manufacturing cost is reduced, but the risk of slicing or cutting injury to animals increases
Solution Approach 1:
The thin wire is segmented into multiple strands twisted together to form a composite structure with an equivalent larger diameter. This segmentation allows each individual strand to remain thin and cost-effective while the combined structure presents a larger, less dangerous profile to animals, reducing slicing and cutting injuries.
Solution Approach 2:
The electric fence wire is constructed as a composite of multiple steel wire strands twisted together, where at least one strand is colored. This composite structure combines the advantages of thin, inexpensive wire with the safety benefits of a larger effective diameter, creating a fence that is both cost-effective and safer for animals.
3Ease of manufacture
If bare wire is used, then the manufacturing cost is low, but moisture causes leakage currents that diminish fence efficiency
Solution Approach 1:
Instead of insulating or coating the entire wire, the invention applies coloration only to specific local segments (strands) of the wire. This local treatment provides visual deterrence and some moisture resistance at the colored segments while maintaining the overall electrical conductivity and cost-effectiveness of the bare wire structure.
4Illumination intensity
If colored coating is applied to enhance visibility, then the visibility is improved, but the electrical conductivity may be compromised
Solution Approach 1:
The wire is segmented into multiple strands, with only some strands colored while others remain as bare conductive steel wire. This segmentation ensures that the colored strands provide visibility enhancement while the uncolored strands maintain electrical conductivity, allowing the fence to achieve both visibility and electrical efficiency simultaneously.
Solution Approach 2:
Coloration is applied locally to specific strands rather than the entire wire structure. This local quality approach allows the colored portions to provide visual deterrence while the uncolored portions maintain full electrical conductivity, resolving the contradiction between visibility enhancement and electrical performance.
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 system offers improved visibility, reduced injury risks, increased flexibility, and maintained electrical efficiency, making it safer and more durable for animal enclosures while being cost-effective and easy to install.
Implementation Method 1
The present fencing wire has an inherent flexibility and elasticity which is not present in a single strand wire
Implementation Method 2
a second wire is a coated steel wire having a visibility-enhancing color
Implementation Method 3
The present fencing wire has an inherent flexibility and elasticity which is not present in a single strand wire. This means that the present fencing wire has a capacity to dissipate tensions
Data Source
Figure 1
Figure 2~5
Figure 4a~3
AI summary
An electric wire fence system comprises at least one electric fencing wire (10) attached to a support structure and an energizer unit to energize the electric wire (10). The electric fencing wire (10) comprises twisted wires wherein a first wire (12) is a non-insulated steel wire connected to the energizer unit; and a second wire (14) is a coated steel wire having a visibility-enhancing color. The wires are longitudinally twisted together in an alternating manner to provide an enhanced elasticity; i.e. in two consecutive twisted sections, the wires are twisted in alternate directions. In particular the electric wire (10) is a two-strand wire consisting of the first (12) wire and second wire (14). In one embodiment, the second wire is electrically insulated; and the first wire and second wire are locally electrically interconnected at one or more positions along the length of the electric wire.