Electric Radiant Wall Panel with Adhesive-Mounted Semi-Conductive Mat

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Solution Overview

Problem

Existing radiant wall solutions in bathrooms require complex installations and skilled labor, and are either externally mounted or integrated into walls during construction or renovation, limiting versatility and ease of use.

Innovation Solution

A radiant wall panel comprising a thermally insulating support layer with a semi-conductive radiant mat and double-sided adhesive tape, allowing for easy integration into brick or dry walls, with a self-supporting design that can be installed during construction or renovation without expert intervention, and featuring a semi-conductive matrix with conductive particles for efficient heating.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If electric radiant elements are used with exposed external cable and socket connection, then ease of installation is improved, but aesthetic appearance and integration with wall finishing deteriorate

Engineering Contradiction:
Improveease of installationVSAvoidaesthetic appearance
Core Design Contradiction:
Ease of operationVSShape

Solution Approach 1:

The patent extracts the cable and socket connection from the visible exterior and relocates them to the interior of the radiant panel. The cable enters through a recess in the rear face, and the socket is mounted on the rear surface, completely hiding external wiring and connections while maintaining ease of installation.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent embeds the cable routing and socket mounting within the panel structure itself. The cable passes through a recess in the rear face and is routed internally, nesting the connection system within the panel's own volume rather than having it external, thus improving aesthetics without complicating installation.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Use of energy by moving object

If hydraulic bathroom radiators are used, then energy efficiency is improved, but installation complexity and requirement for skilled labor increase

Engineering Contradiction:
Improveenergy efficiencyVSAvoidinstallation complexity
Core Design Contradiction:
Use of energy by moving objectVSDevice complexity

Solution Approach 1:

The patent segments the heating system into self-contained electric radiant panels that can be independently installed on walls without requiring connection to central hydraulic systems. Each panel is a discrete unit with integrated heating elements, eliminating the need for complex plumbing infrastructure and skilled hydraulic installation while maintaining energy efficiency through direct electric heating.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The radiant panels are designed as self-contained units that can be installed by end-users without requiring connection to building hydraulic systems or intervention by skilled professionals. The panels include all necessary components (heating elements, insulation, cable routing, socket mounting) integrated into a single installable unit that serves itself.

Inventive Principle:
Principle #25Self-service

3Ease of operation

If radiant wall panels incorporate exposed cables and sockets, then ease of installation is improved, but adaptability to different wall types and finishing options deteriorates

Engineering Contradiction:
Improveease of installationVSAvoidadaptability to wall types
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The patent designs the panel rear face with a universal recessed cable entry and socket mounting system that can be installed on various wall types (plastered, tiled, drywall). The cable routing and socket placement are integrated into the panel structure itself, allowing the same panel design to adapt to different wall surfaces and finishing options without requiring modification of the connection system.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 enables easy, versatile installation of radiant wall panels in bathrooms, reducing energy consumption and avoiding overheating, while allowing for various wall finishes and applications on both finished and unfinished walls.

Implementation Method 1

a semi-conductive matrix (6) consisting of a polymer loaded with conductive particles, for example of graphite

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Implementation Method 2

a thermally insulating support layer (2) and a radiant mat (3) applied on the support layer (2)

Methodology Applied
Scientific EffectThermal insulation: Thermal Insulation

Implementation Method 3

a radiant mat 3 applied on the support layer 2 by means of a double-sided adhesive tape 4

Methodology Applied
Scientific EffectAdhesion: Adhesive

Data Source

PatentEP4450879A1Electric radiant wall panel
Publication Date: 2024.10.23 R B M SPA
  • EP4450879A1 patent drawingFigure 1~4
  • EP4450879A1 patent drawingFigure 5~7
  • EP4450879A1 patent drawingFigure 8~11

AI summary

A radiant panel comprising a thermally insulating support layer (2) and at least one radiant mat (3) attached to the support layer (2) by means of a double-sided adhesive tape (4); the radiant mat (3) comprises a semi-conductive matrix (6) with resistance increasing with temperature and a pair of electrical conductors (7) embedded in the semi-conductive matrix (6) near opposite sides (8) thereof.