Heating Cable Assembly with Reduced Joint Bulk for Floor Installation
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Solution Overview
Problem
The bulkier joint between the heating cable section and the cold cable section in electrical floor heating systems poses installation challenges, requiring additional modifications to the subfloor and membrane, which complicates the flooring process and affects the joint's integration with the flooring installation.
Innovation Solution
A method involving the creation of a master cable set by coupling segments of hot and cold cable sections with varying diameters, followed by applying a continuous metallic sheath and outer jacket, allows for the formation of individual heating cable sets with a reduced joint size, enabling easier integration and minimizing the need for subfloor modifications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the heating cable section and cold cable section are spliced together at the flooring installation location, then the heating system can be installed, but the joint becomes much bulkier than either cable section, requiring additional modifications to subfloor and membrane
Solution Approach 1:
The cable assembly is divided into multiple segments (first heating cable section, first cold cable section, second heating cable section, second cold cable section) that are coupled in sequence. This segmentation allows the bulkier joint to be distributed across multiple smaller connection points rather than concentrated in a single large joint, reducing the volume impact at any single location within the flooring installation.
Solution Approach 2:
The cable sections are nested within a membrane structure that provides a continuous pathway through the flooring installation. The membrane envelops the cable assembly, allowing it to pass through multiple layers (subfloor, membrane, floor covering) without exposing the joints, effectively nesting the bulky joint connections within the membrane's protective envelope.
2Reliability
If the joint is made bulkier to accommodate the splicing of heating and cold cable sections, then the cables can be connected, but additional modifications are required to the subfloor and membrane
Solution Approach 1:
The membrane is installed beforehand with pre-formed openings or pathways that accommodate the cable assembly before the cables are spliced. This preliminary action of installing the membrane with built-in cable routes eliminates the need for later modifications to the subfloor and membrane, reducing installation complexity while maintaining connection reliability.
Solution Approach 2:
The membrane acts as an intermediary structure that facilitates the connection between heating and cold cable sections by providing a protected pathway and environment for the joints. Rather than directly exposing the joints to the flooring structure, the membrane mediates the connection process, allowing reliable splicing while maintaining a clean, modified-free installation appearance.
3Ease of operation
If the joint size is reduced to minimize impact on flooring installation, then easier integration is achieved, but the cable connection may become more difficult to implement
Solution Approach 1:
Different sections of the cable assembly have different qualities optimized for their specific functions: the heating cable sections have properties optimized for heat generation, while the cold cable sections are optimized for current transmission. The joints between these sections are designed with local quality adjustments, using connectors or splicing methods that accommodate the different diameters and properties of adjacent sections, enabling easy integration without compromising connection ease.
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
This approach results in a heating cable set with a minimized joint bulk, facilitating smoother installation and maintaining the operational effectiveness of the heating system without significant increases in material or complexity.
Implementation Method 1
applying a continuous ground braid, or other metallic sheath, about substantially all of the master cable set
Implementation Method 2
applying a continuous outer jacket about the continuous ground braid, or other metallic sheath
Implementation Method 3
Heat is generated as current flows through conductors of the hot cable section
Data Source
AI summary
A method of forming a plurality of individual heating cables sets includes creating at least a portion of a master cable set by coupling alternating sections of cold and hot cable section, each section of cold cable section having a length twice a model cold cable section length and each section of hot cable section having a length twice a model hot cable section length. A continuous metallic ground sheath is applied about substantially all of the master cable set and a continuous outer jacket is applied about the continuous metallic ground sheath. The master cable set is segmented at defined locations to create a plurality of individual heating cable sets having an overall length of the model hot cable section length plus the model cold cable section length.