Resistive Heating Layer Layout for Replaceable Aerosol Materials

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Solution Overview

Problem

Existing aerosol provision systems face challenges in efficiently generating aerosols from replaceable aerosol-generating materials without combustion, particularly in maintaining consistent performance and ease of use.

Innovation Solution

A method of forming an aerosol generator involving a resistive heating layer with conductive material, a backing layer, and aerosol-generating material, where heating elements are aligned with cut-outs to provide individual heating paths, allowing for efficient aerosol generation from a variety of materials.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a resistive heating layer with aligned heating elements is used, then aerosol generation efficiency is improved, but device complexity increases

Engineering Contradiction:
Improveaerosol generation efficiencyVSAvoidheating mechanism complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The heating layer is divided into multiple discrete heating elements, each aligned with specific cut-outs in the frame layer. This segmentation allows targeted heating of different aerosol generating material regions, improving overall heating efficiency and aerosol generation productivity while maintaining manageable device complexity through modular design.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different regions of the heating layer are configured with varying heating element densities and positions to match the specific heating requirements of different aerosol generating material zones. This local optimization ensures efficient aerosol generation where needed while reducing unnecessary heating in other areas, improving productivity without uniformly increasing complexity throughout the entire device.

Inventive Principle:
Principle #3Local quality

2Adaptability or versatility

If multiple heating elements are provided for different materials, then adaptability is improved, but device complexity increases

Engineering Contradiction:
Improvematerial compatibilityVSAvoidheating element configuration
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The heating layer with multiple heating elements is designed to accommodate different types of aerosol generating materials (heatable, non-heatable, and stretchable materials) through a unified structure. The frame layer with cut-outs provides a universal mounting configuration that works with various material forms, improving adaptability while avoiding the need for completely separate heating systems for each material type.

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

Solution Approach 2:

The heating elements are configured to be selectively activated based on the type of aerosol generating material inserted. The system can dynamically adjust which heating elements are operational, allowing the same physical structure to adapt to different material requirements without requiring physical reconfiguration, thus improving versatility without permanently increasing device complexity.

Inventive Principle:
Principle #15Dynamics

3Manufacturing precision

If heating elements are formed after aerosol generating material is provided, then manufacturing precision is improved, but manufacturing time increases

Engineering Contradiction:
Improveheating element alignmentVSAvoidmanufacturing cycle time
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The frame layer with cut-outs is prepared in advance as a positioning template. The heating elements are then formed or attached in alignment with these pre-defined cut-outs, ensuring precise positioning without requiring complex post-assembly alignment procedures. This preliminary preparation of the frame structure enables efficient subsequent assembly while maintaining high manufacturing precision.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The frame layer with cut-outs serves as an intermediary component that facilitates precise alignment between the heating elements and the aerosol generating material. The cut-outs act as physical guides and positioning features, enabling accurate placement of heating elements during assembly without requiring sophisticated alignment equipment or time-consuming adjustment procedures, thus improving precision while controlling manufacturing time.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 efficient and consistent aerosol generation from a range of aerosol-generating materials, facilitating easy replacement and customization, while maintaining compact and efficient heating mechanisms.

Implementation Method 1

the or each heating element provides an electrically conductive path for resistive heating of a portion of the aerosol generating material to generate an aerosol

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Data Source

PatentEP4646948A1Aerosol generator
Publication Date: 2025.11.12 NICOVENTURES TRADING LTD
  • EP4646948A1 patent drawingFigure 1~4
  • EP4646948A1 patent drawingFigure 5~6
  • EP4646948A1 patent drawingFigure 7a~7c

AI summary

A method of forming an aerosol generator of an article for an aerosol provision device. The method comprises a) providing a resistive heating layer having a first side and a second side, the resistive heating layer comprising an electrically conductive material (410); b) releasably fixing a backing layer on the second side (420); c) providing aerosol generating material on the first side (430); d) removing the backing layer (440); e) forming at least one heating element on the second side of the resistive heating layer aligned with the cut out (450), wherein the or each heating element extends from an electrical connection of a first type to an electrical connection of a second type.