Aerosol Heater Sensor Board Layout for Compact Multi-Sensing

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Solution Overview

Problem

The challenge lies in incorporating additional functions into aerosol generating devices while maintaining a compact design, requiring efficient arrangement of components within the limited inner space.

Innovation Solution

The device integrates a housing with an accommodation space, a heater, and a circuit board that includes sensors for capacitance and inductance changes to efficiently utilize the limited space and enhance user convenience.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If additional functions are incorporated into the aerosol generating device, then user convenience is improved, but device complexity increases

Engineering Contradiction:
Improveuser convenienceVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

Multiple sensors (capacitance sensor, inductance sensor, temperature sensor) are integrated into a single circuit board, combining multiple detection functions into one component platform. This reduces the number of separate components and simplifies the overall device structure while maintaining multiple sensing capabilities for enhanced user convenience.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The circuit board serves multiple functions by housing various sensors that detect different parameters (capacitance, inductance, temperature). This multi-functional design allows the device to monitor multiple aspects of aerosol generation and user interaction through a single integrated platform, improving versatility without proportionally increasing complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If multiple sensors are integrated into the device, then functionality is improved, but manufacturing complexity increases

Engineering Contradiction:
ImprovefunctionalityVSAvoidmanufacturing complexity
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

Multiple sensors are mounted on a single circuit board, consolidating multiple components into one assembly unit. This merging approach simplifies the manufacturing process by reducing the number of separate assembly operations and making it easier to integrate the sensing system into the final device.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The sensing system is segmented into a dedicated circuit board module that can be manufactured and tested independently before being integrated into the main device. This modular approach allows for specialized sensor board production while simplifying the overall device assembly process.

Inventive Principle:
Principle #1Segmentation

3Volume of moving object

If sensors are integrated into the circuit board, then space utilization is improved, but assembly complexity increases

Engineering Contradiction:
Improvespace utilizationVSAvoidassembly complexity
Core Design Contradiction:
Volume of moving objectVSDevice complexity

Solution Approach 1:

The circuit board integrates multiple sensor components into a single compact unit, maximizing space utilization within the device housing. By combining capacitance, inductance, and temperature sensors on one board, the design efficiently uses available space while reducing the number of separate mounting operations required.

Inventive Principle:
Principle #5Merging (Combining)

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 configuration allows for efficient use of the device's inner space, simplifies manufacturing, and reduces costs by integrating sensors for improved functionality.

Implementation Method 1

a first sensor for sensing a capacitance change in the accommodation space

Methodology Applied
Scientific EffectCapacitance change: Capacitance

Implementation Method 2

a second sensor for sensing an inductance change in the accommodation space

Methodology Applied
Scientific EffectInductance change: Electromagnetic Induction

Implementation Method 3

a heater for heating the aerosol generating article accommodated in the accommodation space

Methodology Applied
Scientific EffectHeating: Heating

Data Source

PatentEP4670533A1Aerosol-generating device
Publication Date: 2025.12.31 KT&G CO LTD
  • EP4670533A1 patent drawingFigure 1
  • EP4670533A1 patent drawingFigure 2
  • EP4670533A1 patent drawingFigure 3

AI summary

An aerosol generating device includes a housing including an accommodation space for accommodating an aerosol generating article, a heater configured to heat the aerosol generating article accommodated in the accommodation space, and a circuit board including a first sensor for sensing a capacitance change in the accommodation space and a second sensor for sensing an inductance change in the accommodation space.