Susceptor Testing Equipment for Aerosol Devices

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Solution Overview

Problem

Existing methods for testing susceptor arrangements in aerosol-generating devices are inadequate for multi-layer susceptor arrangements, as material parameters are complex and supplier-provided characteristics do not sufficiently characterize heating performance.

Innovation Solution

A testing equipment and method that simulates user experience conditions using an inductive heating arrangement and measurement device to determine susceptor values, comparing them to predetermined values for acceptance or rejection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If detailed material characteristics of susceptor arrangement are analyzed, then manufacturing precision can be improved, but device complexity and difficulty of measurement increase significantly

Engineering Contradiction:
Improvesusceptor material parameter precisionVSAvoidtesting equipment complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent extracts only the essential heating performance characteristics (heating time, temperature reach, energy consumption) from the complex multi-layer susceptor arrangement, eliminating the need to measure detailed material parameters such as individual layer thicknesses, material compositions, and magnetic properties. This extraction approach reduces testing complexity while maintaining manufacturing precision for quality control.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent replaces complex mechanical and material analysis systems with a simplified thermal testing system. Instead of analyzing material composition, microstructure, or physical dimensions, the system uses thermal imaging and temperature sensors to directly measure heating performance, substituting complex material characterization with straightforward thermal measurements.

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

2Ease of operation

If supplier-provided material parameters are used, then ease of operation is improved, but measurement precision and reliability of heating performance characterization deteriorate

Engineering Contradiction:
Improvetesting operation simplicityVSAvoidheating performance characterization accuracy
Core Design Contradiction:
Ease of operationVSMeasurement precision

Solution Approach 1:

The patent implements self-service testing where the susceptor arrangement is tested in its actual operational context within the aerosol-generating device. The device automatically performs heating cycles, captures thermal images, and processes data without requiring external material parameter inputs. This self-service approach eliminates dependency on supplier-provided specifications while maintaining operational simplicity.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent employs feedback mechanisms where thermal images and temperature measurements from actual heating cycles are automatically compared against predefined performance thresholds. The system provides real-time feedback on heating performance, automatically identifying defective susceptor arrangements without requiring detailed material parameter analysis or complex manual testing procedures.

Inventive Principle:
Principle #23Feedback

3Reliability

If multi-layer susceptor arrangement is tested with detailed material analysis, then reliability of heating performance is improved, but loss of time and productivity decrease

Engineering Contradiction:
Improveheating performance reliabilityVSAvoidtesting time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent performs preliminary thermal imaging and temperature measurements during actual heating cycles to identify heating performance issues before they manifest as defects in the final product. By conducting these preliminary thermal assessments during normal operation, the system eliminates the need for separate detailed material analysis, reducing overall testing time while maintaining reliability.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent skips the time-consuming steps of detailed material parameter measurement and analysis by directly measuring the functional outcome (heating performance) through thermal imaging and temperature sensors. This rushing-through approach measures only the critical heating characteristics, eliminating unnecessary testing steps and significantly reducing test cycle time while maintaining reliable quality control.

Inventive Principle:
Principle #21Skipping (Rushing through)

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 reliable and efficient testing of susceptor arrangements without detailed material knowledge, ensuring quality control by comparing determined values with predefined thresholds, reducing defects and waste.

Implementation Method 1

The inductive heating arrangement is configured to generate an alternating magnetic field for inductively heating a susceptor arrangement

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 2

The inductive heating arrangement is configured to generate an alternating magnetic field for inductively heating a susceptor arrangement

Methodology Applied
Scientific EffectInduction heating: Induction Heating

Implementation Method 3

Articles comprising an aerosol-forming substrate and a heating element in the form of a susceptor for heating the substrate to generate aerosol

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Data Source

PatentUS20250204612A1A testing equipment and method for testing a susceptor arrangement in simulated heating conditions
Publication Date: 2025.06.26 PHILIP MORRIS PRODUCTS SA
  • US20250204612A1 patent drawing
  • US20250204612A1 patent drawing
  • US20250204612A1 patent drawing

AI summary

The present invention relates to a testing equipment and method for testing a susceptor arrangement in simulated heating conditions of a heated susceptor arrangement arranged in an aerosol-generating device during a user experience. The testing equipment comprises a holder module comprising a holder for receiving a susceptor arrangement to be tested, a control module comprising an inductive heating arrangement and a measurement device comprising a control circuit, wherein the inductive heating arrangement is configured to generate an alternating magnetic field for inductively heating a susceptor arrangement. The measurement device is configured to determine values associated to physical characteristics of the susceptor arrangement from measurements related to a load applied to the control circuit responsive to a susceptor arrangement in operational communication with the inductive heating arrangement, and the control circuit is configured to power the inductive heating arrangement for one test cycle or several subsequent test cycles of the susceptor arrangement and configured to determine if determined values associated to physical characteristics of the susceptor arrangement correspond to predetermined susceptor values.