Vapour Generating Heating Assembly with Safe Medium Ejection

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Solution Overview

Problem

Existing vapor generating devices face challenges in efficiently transferring heat to aerosol-generating materials while ensuring easy removal of depleted materials without scalding risks, and often lack effective detection of material depletion and insertion of new materials.

Innovation Solution

A heating assembly with a controllable ejector mechanism that allows easy removal of aerosol-generating media by actuating the ejector, combined with a detector to manage puff counting and consumable tracking, ensuring close proximity to the heat source for efficient heat transfer and preventing user contact with heated elements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If the removable body is placed in contact with the heat source to maximise heat transfer efficiency, then heat transfer efficiency is improved, but the risk of scalding the user increases and removal becomes difficult

Engineering Contradiction:

Improveheat transfer efficiencyVSAvoidscalding risk

Core Design Contradiction:

Use of energy by moving objectVSObject-affected harmful factors

Solution Approach 1:

The heating assembly is divided into separate functional components: a heat source, a removable body containing aerosol-generating material, and an ejector mechanism. This segmentation allows the body to be removed independently from the heat source, enabling safe user access while maintaining efficient heat transfer during operation.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The ejector mechanism enables the depleted body to be automatically ejected from the heating assembly without requiring user manipulation of the hot components. The system serves itself by providing a safe, automated removal mechanism that eliminates the need for users to handle heated elements.

Inventive Principle:

Principle #25Self-service

2Use of energy by moving object

If the removable body is placed in contact with the heat source to maximise heat transfer efficiency, then heat transfer efficiency is improved, but the difficulty of removing the depleted body increases

Engineering Contradiction:

Improveheat transfer efficiencyVSAvoidease of body removal

Core Design Contradiction:

Use of energy by moving objectVSEase of operation

Solution Approach 1:

The ejector mechanism is pre-positioned within the heating assembly, ready to act on the depleted body. When removal is needed, the ejector is activated to push the body out through the opening, providing a predetermined, easy removal path that eliminates the need for users to manually extract stuck bodies.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The ejector acts as an intermediary mechanism between the user and the depleted body. Instead of the user directly manipulating the stuck body, the ejector serves as a mechanical mediator that pushes the body out, reducing the effort and complexity of removal.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Object-affected harmful factors

If a double wall system is used to separate the heat source and aerosol-generating material, then the risk of scalding is reduced, but heat transfer capability deteriorates

Engineering Contradiction:

Improvescalding riskVSAvoidheat transfer capability

Core Design Contradiction:

Object-affected harmful factorsVSUse of energy by moving object

Solution Approach 1:

The system transitions from a static double wall configuration to a dynamic arrangement where the removable body can be placed in direct contact with the heat source during operation for optimal heat transfer, then safely removed via the ejector mechanism when depleted. This dynamic approach allows the system to optimize heat transfer when needed while maintaining safety during removal.

Inventive Principle:

Principle #15Dynamics

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

Enables quick and safe removal of aerosol-generating materials, maintains high-quality vapor production, and effectively tracks consumable usage, enhancing user safety and device efficiency.

Implementation Method 1

a heater arranged, in use, to provide heating to the heating chamber

Methodology Applied

Scientific EffectHeating: Heating

Implementation Method 2

an ejector arranged to controllably eject, in use, the aerosol generating medium from the heating chamber

Methodology Applied

Scientific EffectMechanical Force: Mechanical Force

Data Source

PatentUS20250288006A1Vapour Generating Device

Publication Date: 2025.09.18 JT INTERNATIONAL SA

AI summary

A heating assembly for a vapour generating device includes: a heating chamber arranged to hold an aerosol generating medium; a heater arranged, in use, to provide heating to the heating chamber; and an ejector arranged to controllably eject, in use, the aerosol generating medium from the heating chamber. A vapour generating device includes the heating assembly; and a vapour passage to carry vapour generated in the heating chamber from the heating chamber to an air outlet, wherein at least a portion of the vapour passage is formed by the ejector.