Thermal Output Element for Tactile Feedback in Aerosol Generators

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Solution Overview

Problem

Electrically heated smoking systems provide confusing and distracting user feedback, making it difficult for users to interact with various devices and models, and can disturb others with audible and visual signals.

Innovation Solution

Incorporating a thermal output element that generates a user-perceptible temperature change, allowing for consistent and intuitive feedback through a tactile interface, which can be integrated into the device and peripheral devices, reducing the need for audible and vibrational signals.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If audible and visual signals are used for user feedback, then information can be conveyed to the user, but others may be disturbed and the interface becomes confusing across different devices

Engineering Contradiction:
Improveuser feedback clarityVSAvoiddisturbance to others
Core Design Contradiction:
Loss of informationVSObject-affected harmful factors

Solution Approach 1:

The patent replaces audible and visual signal systems with a tactile feedback system using a thermal output element that generates temperature changes perceptible to the user's skin, thereby eliminating disturbance to others while maintaining effective communication of device status

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the feedback parameter from acoustic/optical signals to thermal parameters, using temperature variations to convey information to the user through tactile sensation, which provides clear feedback without the harmful effects of audible and visual signals

Inventive Principle:
Principle #35Parameter changes

2Loss of information

If multiple different feedback methods are used across various devices, then comprehensive information can be provided, but user confusion increases and ease of operation decreases

Engineering Contradiction:
Improveinformation completenessVSAvoiduser interaction consistency
Core Design Contradiction:
Loss of informationVSEase of operation

Solution Approach 1:

The patent implements a universal tactile feedback interface using thermal output elements that can be consistently applied across different aerosol-generating devices and peripheral devices, providing a standardized method for conveying multiple types of information (battery status, device readiness, operational state) through a single consistent interaction paradigm

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

Enhances user experience by providing clear and understandable feedback without disturbing others, improving usability and consistency across different devices and models.

Implementation Method 1

a thermal output element coupled to the housing and distinct from the aerosol-generating element. The aerosol-generating device comprises a circuit coupled to the thermal output element and configured to cause the thermal output element to generate a user-perceptible temperature change

Methodology Applied
Scientific EffectResistive heating: Joule Heating

Data Source

PatentEP3968797B1An aerosol-generating system and a thermal output element for an aerosol-generating system
Publication Date: 2023.06.14 PHILIP MORRIS PRODUCTS SA
  • EP3968797B1 patent drawingFigure 1
  • EP3968797B1 patent drawingFigure 2
  • EP3968797B1 patent drawingFigure 3A~3B

AI summary

According to an embodiment of the invention, there is provided an aerosol-generating device (100, 600). The aerosol-generating device (100, 600) may comprise a housing (11, 21, 307, 39, 411, 507). The housing (11, 21, 307, 39, 411, 507) optionally may comprise one or more of an air inlet (15), an air outlet (22), and an airflow path (23) extending therebetween. The aerosol-generating device (100, 600) may comprise an aerosol-generating element (25) disposed within the housing (11, 21, 307, 39, 411, 507) and configured to generate an aerosol. The aerosol-generating device (100, 600) may comprise a thermal output element (303, 403, 413, 423, 433, 443, 453, 503, 513) coupled to the housing (11, 21, 307, 39, 411, 507), the thermal output element (303, 403, 413, 423, 433, 443, 453, 503, 513) being distinct from the aerosol-generating element. The aerosol-generating device (100, 600) may comprise a circuit coupled to the thermal output element (303, 403, 413, 423, 433, 443, 453, 503, 513) and configured to cause the thermal output element (303, 403, 413, 423, 433, 443, 453, 503, 513) to generate a user-perceptible temperature change.