Capacitor-Heated Aerosol Article for Compact Vaping Control

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Solution Overview

Problem

Existing heated aerosol generating devices are bulky and heavy due to the need for a separate power source, which complicates the design and increases size and weight, while maintaining accurate control of heating and aerosol characteristics.

Innovation Solution

Incorporating a capacitor, such as an electric double-layer supercapacitor, within the aerosol generating article that stores electrical charge to heat an electrolyte, which is then converted into an aerosol, with a switching circuit to control discharging and charging, potentially supplemented by an external heater for enhanced control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a separate power source (battery) is used to heat the aerosol generating material, then the device can maintain accurate control of heating and aerosol characteristics, but the device size and weight increase

Engineering Contradiction:

Improveheating control accuracyVSAvoiddevice weight

Core Design Contradiction:

Measurement precisionVSWeight of moving object

Solution Approach 1:

The patent combines the power source function with the aerosol generating article itself by incorporating a capacitor into the article. This merging eliminates the need for a separate battery in the device, reducing device weight while maintaining heating control through the controller's ability to manage capacitor charging and discharging cycles.

Inventive Principle:

Principle #5Merging (Combining)

2Measurement precision

Engineering Contradiction:

Improveheating control accuracyVSAvoiddevice size

Core Design Contradiction:

Measurement precisionVSVolume of moving object

Solution Approach 1:

The capacitor is integrated into the aerosol generating article, merging the power source function with the consumable component. This eliminates the need for a separate battery compartment or power source housing in the device, reducing device volume while preserving heating control capabilities through electronic management of the capacitor.

Inventive Principle:

Principle #5Merging (Combining)

3Weight of moving object

If a capacitor is integrated into the aerosol generating article to serve as power source, then device size and weight are reduced, but the complexity of controlling heating increases

Engineering Contradiction:

Improvedevice weightVSAvoidheating control complexity

Core Design Contradiction:

Weight of moving objectVSDevice complexity

Solution Approach 1:

The controller implements feedback control by monitoring the capacitor's charge state and adjusting charging/discharging parameters accordingly. This feedback mechanism manages the complexity of heating control automatically, allowing the system to maintain accurate temperature control while adapting to the capacitor's energy state without requiring complex manual intervention.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system uses periodic charging and discharging of the capacitor to maintain heating control. The controller cycles the capacitor between charge and discharge states, creating periodic energy delivery that simplifies thermal management compared to continuous power delivery, while maintaining accurate average temperature control over time.

Inventive Principle:

Principle #19Periodic action

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 reduces the device's size and weight by integrating the power source into the article, maintains accurate heating control, and optimizes aerosol characteristics, allowing for a more user-friendly and efficient vaping experience.

Implementation Method 1

The method comprises at least one of discharging and charging the capacitor to heat the electrolyte

Methodology Applied

Scientific EffectJoule heating: Joule Heating

Implementation Method 2

the electrolyte which, when heated, generates an aerosol for inhalation by a user. The electrolyte is therefore aerosolisable, i.e., capable of being converted into an aerosol by heating

Methodology Applied

Scientific EffectEvaporation: Evaporation

Data Source

PatentUS20250351885A1A Method of Heating an Aerosol Generating Article Comprising an Electrolytic Capacitor

Publication Date: 2025.11.20 JT INTERNATIONAL SA

AI summary

A method of heating an aerosol generating article which includes a capacitor with an electrolyte, includes at least one of discharging and charging the capacitor to heat the electrolyte and thereby generate an aerosol for inhalation by a user. An aerosol generating device may be adapted to receive, in use, the aerosol generating article.