Electrochemical Sensor Switch for Aerosol Product Authentication

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Solution Overview

Problem

Counterfeit aerosol generating devices and substrates pose challenges in verifying the authenticity and quality of aerosol contents, as existing systems struggle to reliably distinguish genuine from counterfeit products.

Innovation Solution

An electronic aerosol generating system that incorporates a container with a product identifying compound, detected by an electrochemical sensor switch, which changes conductivity states to authenticate the aerosol generating substrate, ensuring only genuine products are used and preventing refilling of containers to maintain quality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If an electrochemical sensor switch with product identifying compound is used to verify authenticity, then the reliability of product verification is improved, but the device complexity increases

Engineering Contradiction:
Improveproduct verification reliabilityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent uses electrochemical sensor switches that change conductivity parameters when exposed to specific product identifying compounds. This allows the system to verify product authenticity by detecting changes in electrical conductivity, enabling reliable verification through measurable parameter changes rather than complex mechanical or optical systems

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent replaces potential mechanical verification systems with an electrochemical sensing system. The electrochemical sensor switch uses chemical reactions between the product identifying compound and sensor materials to produce electrical signals, substituting mechanical complexity with electrochemical detection that is both reliable and more compact

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

2Manufacturing precision

If the system is configured to prevent refilling by limiting use to a single cycle, then the manufacturing precision of quality control is improved, but the loss of time for product replacement increases

Engineering Contradiction:
Improvequality control precisionVSAvoidproduct replacement time
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The system performs preliminary verification of product authenticity before allowing use. The electrochemical sensor switch detects the product identifying compound in advance, confirming authenticity and enabling the system to control subsequent usage cycles. This preliminary check ensures quality control before the product is activated, preventing counterfeit or refilled products from being used

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system uses feedback from the electrochemical sensor switch to control product usage. When the sensor detects the product identifying compound, it triggers a state change that allows the device to operate for a controlled number of cycles. After the predetermined number of cycles, the system provides feedback to prevent further use, ensuring quality control while managing product lifecycle

Inventive Principle:
Principle #23Feedback

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 system effectively verifies the authenticity of aerosol generating substrates, ensuring reproducible quality by limiting use to a single cycle and preventing refilling, thus enhancing the reliability and consistency of the aerosol delivery experience.

Implementation Method 1

The electrochemical switch is configured to change from a first state to a second state when the product identifying compound interacts with the electrochemical sensor

Methodology Applied
Scientific EffectElectrochemical interaction: Electrochemiluminescence

Data Source

PatentEP3550996B1Product recognition in aerosol generating devices
Publication Date: 2023.04.05 PHILIP MORRIS PRODUCTS SA
  • EP3550996B1 patent drawingFigure 1A~1D
  • EP3550996B1 patent drawingFigure 2~4
  • EP3550996B1 patent drawingFigure 5

AI summary

An aerosol generating system includes a container (150) housing an aerosol generating substrate and a product identifying compound (155) associated with the container (150). The system further includes an electronic article (100) configured to receive the container (150). The electronic article (100) includes control electronics (200) and an electrochemical sensor switch (10, 20) operably coupled to the control electronics (200). The electrochemical switch (10, 20) is configured to change from a first state to a second state when the product identifying compound (155) interacts with the electrochemical sensor. The electrochemical sensor switch (10, 20) has a different conductivity in the first state than in the second state. The control electronics (200) are configured to cause the device to generate an aerosol from the aerosol generating substrate when the electrochemical sensor switch (10, 20) changes states due to interaction with the product identifying compound (155).