Wire Sleeve Protector Fastening and Leakage Current Blocking
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Solution Overview
Problem
Existing sleeve protectors for wires fail to effectively block leakage currents and maintain dielectric strength due to thermal deformation, leading to insulation failures and electric shock risks, especially when exposed to rainwater and UV radiation.
Innovation Solution
A sleeve protector with a hollow cover featuring hook-shaped jaws, a fastener, and air space with leakage prevention protrusions, which prevents automatic unfastening due to thermal deformation and blocks leakage currents through rainwater, maintaining high electrical insulation and dielectric strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the locking parts of the lower body are exposed to the outside to allow easy installation and removal, then the ease of operation is improved, but thermal deformation occurs due to sunlight and UV rays causing the inlet part to open or loosen automatically, worsening the reliability
Solution Approach 1:
The protective pipe is divided into an upper body and a lower body that can be separately installed and removed. The lower body includes locking parts that can be engaged or disengaged independently, allowing easy installation and removal operations while maintaining reliability when locked in place.
Solution Approach 2:
The locking parts are designed to be pre-positioned in specific locations on the lower body, and the installation process involves simply engaging these pre-positioned parts with corresponding features on the upper body. This preliminary arrangement of locking mechanisms eliminates the need for complex fastening operations while ensuring reliable thermal resistance when assembled.
2Reliability
If protective pipes are used to insulate transmission lines, then the protection against electric shock and line failure is improved, but rainwater penetrates through gaps between protective pipes and binding connectors, causing leakage currents that deteriorate insulation and reduce dielectric strength
Solution Approach 1:
The upper body and lower body are designed to be assembled together to form a continuous protective covering around the transmission line. When properly engaged, the joining surfaces between upper and lower bodies create a sealed interface that prevents rainwater penetration and eliminates leakage current paths, combining the protective functions of both sections.
Solution Approach 2:
The binding connectors that initially create gaps and potential leakage paths are addressed by designing the lower body with features that interface with these connectors. The assembly converts the potential harm of connector gaps into a sealed configuration where the connector interfaces become part of the protective barrier, preventing rainwater ingress and eliminating leakage currents.
3Ease of manufacture
If a bare wire transmission line is used without insulation or vinyl coating, then the ease of manufacture and installation is improved, but the risk of electric shock increases when rainwater penetrates through gaps in protective pipes and binding connectors
Solution Approach 1:
The protective pipe assembly serves multiple functions: it provides mechanical protection, electrical insulation, and environmental sealing for bare wire transmission lines. The design accommodates various installation conditions and wire types while maintaining consistent protective performance, making the system universally applicable to different bare wire applications without requiring pre-insulated conductors.
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 reliably prevents insulation failures and electric shock by blocking leakage currents and maintaining dielectric strength, even under thermal stress and moisture exposure, ensuring the fastened state remains secure and insulated.
Implementation Method 1
an air space part formed at the lower portion of the cover to prevent leakage current of a wire from flowing directly in a downward direction
Implementation Method 2
leakage prevention protrusions formed in the air space part to prevent leakage current of a wire from flowing directly in a downward direction
Implementation Method 3
a fastener fitted onto both side jaws of the cover to maintain the slit in a closed state
Implementation Method 4
to reliably prevent insulation failures and electric shock by blocking leakage currents and maintaining dielectric strength, even under thermal stress and moisture exposure
Data Source
AI summary
A sleeve protector for wires, includes: a hollow cover which has a slit formed along the center line of the bottom thereof in order to cover a wire with the cover by opening the cover in the opposite directions and then placing the cover on the wire; a pair of hook-shaped jaws which protrude longitudinally from the lower inner circumferential surface of the cover along the opposite sides of the slit, respectively; a fastener which is formed to fasten the cover by being fitted onto the pair of jaws in order to maintain the slit in a closed state after the wire is covered with the cover, and has a tab integrated therewith, the tab being formed along the center line of the fastener and exposed out of the cover through the slit; and a pair of guards which are integrated with the cover.