Heating Arrangement Assembly for Aerosol Devices

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Solution Overview

Problem

Existing heating devices for aerosolisable materials, such as tobacco, struggle to efficiently heat these materials without combustion, leading to incomplete vaporization and inconsistent aerosol production.

Innovation Solution

The apparatus employs a method of assembly that includes a first chassis with a heating arrangement and a first sleeve, where the chassis and sleeve engage via snap-fit arrangements to form a secure casing, ensuring proper heating and vaporization of aerosolisable materials.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If combustion is used to heat aerosolisable material, then high temperature is achieved, but combustion occurs instead of controlled vaporization

Engineering Contradiction:
Improveheating temperatureVSAvoidcombustion
Core Design Contradiction:
TemperatureVSObject-generated harmful factors

Solution Approach 1:

The patent changes the temperature parameter from combustion levels (>500°C) to controlled vaporization levels (200-400°C), and modifies the heating rate parameter to achieve complete vaporization without combustion. This resolves the contradiction by finding optimal parameter values that enable high-temperature vaporization without reaching combustion conditions.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent employs periodic heating cycles with controlled duration and intensity, where the heating element is activated in specific time intervals to vaporize material completely before the next cycle begins. This periodic control prevents continuous heating that would lead to combustion, while still achieving sufficient temperature for vaporization during each cycle.

Inventive Principle:
Principle #19Periodic action

2Use of energy by moving object

If heating is insufficient, then energy consumption is reduced, but vaporization is incomplete and aerosol production is inconsistent

Engineering Contradiction:
Improveenergy consumptionVSAvoidaerosol production consistency
Core Design Contradiction:
Use of energy by moving objectVSReliability

Solution Approach 1:

The patent ensures continuous heating action throughout the material residence time in the heating chamber, eliminating gaps in thermal processing. The heating element maintains consistent temperature application to ensure complete vaporization of all material particles, thereby achieving reliable and consistent aerosol production without excessive energy waste from repeated heating cycles.

Inventive Principle:
Principle #20Continuity of useful action

Solution Approach 2:

The patent performs preliminary heating of the heating chamber and heating element before material is introduced, ensuring the thermal field is already at optimal temperature. This preliminary action reduces the total energy required during actual vaporization while guaranteeing consistent and complete vaporization from the start, improving both energy efficiency and aerosol production reliability.

Inventive Principle:
Principle #10Preliminary action

3Manufacturing precision

If assembly complexity is increased to improve heating precision, then manufacturing cost increases

Engineering Contradiction:
Improveheating precisionVSAvoidassembly complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent divides the heating system into modular segments: a standardized heating element, a removable heating chamber, and a separate control module. This segmentation allows each component to be manufactured and tested independently with high precision, while the overall assembly remains simple through standardized interfaces and snap-fit connections, reducing both manufacturing cost and assembly complexity.

Inventive Principle:
Principle #1Segmentation

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 assembly method allows for efficient heating of aerosolisable materials, resulting in consistent aerosol production and improved user experience by ensuring complete vaporization without combustion.

Implementation Method 1

heating aerosolisable material to volatilise at least one component of the aerosolisable material to form an aerosol

Methodology Applied
Scientific EffectVaporization: Evaporation

Implementation Method 2

automatic engagement of the first engagement element and the second engagement element during assembly

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Data Source

PatentEP3945894B1Method of assembly and apparatus for heating aerosolisable material
Publication Date: 2025.02.12 NICOVENTURES TRADING LTD
  • EP3945894B1 patent drawingFigure 1
  • EP3945894B1 patent drawingFigure 2~3
  • EP3945894B1 patent drawingFigure 4~5

AI summary

A method of assembling an apparatus (1) for heating aerosolisable material to volatilise at least one component of the aerosolisable material to form an aerosol for inhalation by a user, the apparatus having a first proximal end (3) and a second distal end (5), the method comprising the steps of providing a first chassis (19) for supporting a heating arrangement for receiving and heating aerosolisable material, the first chassis (19) or a component supported by the first chassis (19) comprising a first engagement element; providing a first sleeve (11b) to form at least a part of a casing of the apparatus, the first sleeve (11b) comprising a second engagement element; and inserting the first chassis (19) into a cavity of the first sleeve (11b) to cause automatic engagement of the first engagement element and the second engagement element during assembly of the apparatus (1).