Heat Shrink Kit Armor for Impact and Flammability Protection
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Solution Overview
Problem
Existing heat shrink kits lack effective impact and flammability resistance, with cold-lead kits being more prone to impact damage due to air gaps and polymeric materials failing to provide adequate protection, while alternative solutions are either messy, costly, or difficult to use.
Innovation Solution
A cost-effective armor system for heat shrink kits comprising a spring and fasteners, specifically designed to provide impact protection by being positioned over the heat shrink tubing and mechanical connectors, using materials like steel and metallic cable ties, which also offers flammability protection without compromising electrical insulation or moisture sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If heat shrink tubing is used to provide moisture sealing and electrical insulation, then the kit is effective as a moisture barrier and insulator, but the polymeric construction provides limited resistance to impact and flammability
Solution Approach 1:
The patent combines heat shrink tubing (polymer) with metal components (sleeve, connectors, cable ties) to create a composite structure. The metal sleeve provides impact and flammability resistance while the heat shrink tubing maintains moisture sealing and electrical insulation properties. This composite approach resolves the contradiction by integrating materials with complementary properties.
2Ease of operation
If cold-lead kits are used with mechanical connectors, then the kit is easier to install, but air gaps beneath the heat shrink tubing make it more prone to impact damage
Solution Approach 1:
The metal sleeve acts as an intermediary structure that fills the air gaps between the heat shrink tubing and the mechanical connectors. This sleeve provides continuous structural support along the entire length of the heat shrink tubing, eliminating the weak points caused by air gaps and distributing impact forces evenly, thereby resolving the contradiction between ease of installation and impact resistance.
3Strength
If splice kits are used with solid construction, then impact pressure is reduced, but flammability resistance is still limited due to polymeric nature of heat shrink tubing
Solution Approach 1:
The patent applies the composite materials principle by combining the solid construction advantage of splice kits with metal components. The metal sleeve and connectors maintain the solid construction for impact resistance while simultaneously providing flammability resistance that the polymeric heat shrink tubing alone cannot achieve.
4Object-affected harmful factors
If metal shell with RTV silicone sealant is used instead of heat shrink kits, then impact and flammability resistance is provided, but the method is messier and more difficult to use
Solution Approach 1:
The patent makes the heat shrink kit multi-functional by integrating the protective functions of a metal shell into the kit itself. The metal sleeve, connectors, and heat shrink tubing work together to provide both impact/flammability resistance and moisture sealing/electrical insulation in a single integrated system that maintains the ease of use of heat shrink kits while achieving the protection of metal shell solutions.
Data Source
AI summary
An armor for a heat shrink kit for joining a first length of heating cable and a second length of heating cable. The armor includes a spring configured to be positioned over at least a portion of the heat shrink kit, a first fastener configured to couple the spring to at least one of the first length of heating cable and the heat shrink kit, and a second fastener configured to couple the spring to at least one of the second length of heating cable and the heat shrink kit. The armor is configured to provide impact protection to the heat shrink kit.