Rotating Substrate Heating for Consistent Aerosol Generation

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Solution Overview

Problem

Conventional aerosol-generating devices heat a fixed region of the substrate, leading to the generation of miscellaneous gases and affecting inhalation taste due to inconsistent aerosol production.

Innovation Solution

An aerosol-generating device with a rotating assembly and heating assembly that switches substrate portions to ensure even heating, preventing repetitive heating of a single region.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If the heating assembly heats a fixed region of the aerosol-generating substrate, then the device structure is simple, but miscellaneous gas is generated affecting inhalation taste

Engineering Contradiction:
Improvedevice structureVSAvoidmiscellaneous gas generation
Core Design Contradiction:
Device complexityVSObject-generated harmful factors

Solution Approach 1:

The patent applies the dynamics principle by making the substrate rotate during heating instead of keeping it stationary. The rotating assembly drives the substrate to rotate, allowing different regions of the substrate to pass through the heating assembly's heating zone. This dynamic approach prevents miscellaneous gas generation by avoiding prolonged heating of a single fixed region, thereby improving inhalation taste without significantly complicating the device structure.

Inventive Principle:
Principle #15Dynamics

2Duration of action of moving object

If the heating assembly repeatedly heats the fixed region for a long time, then the heating process is continuous, but the inhalation taste is affected

Engineering Contradiction:
Improveheating durationVSAvoidinhalation taste quality
Core Design Contradiction:
Duration of action of moving objectVSObject-generated harmful factors

Solution Approach 1:

The rotating substrate continuously moves different regions through the heating zone, ensuring that no single region is repeatedly heated for extended periods. This dynamic rotation maintains continuous aerosol generation while preventing the formation of miscellaneous gases that would affect inhalation taste.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The substrate is divided into multiple regions that are sequentially heated as it rotates. This segmentation approach ensures that the heating duration for each specific region is limited, preventing miscellaneous gas generation while maintaining overall continuous aerosol production through the coordinated rotation and heating process.

Inventive Principle:
Principle #1Segmentation

3Device complexity

If the substrate remains stationary during heating, then the device structure is simple, but aerosol production consistency is poor

Engineering Contradiction:
Improvedevice structureVSAvoidaerosol production consistency
Core Design Contradiction:
Device complexityVSStability of the object's composition

Solution Approach 1:

The patent introduces substrate rotation to achieve consistent aerosol production. By rotating the substrate, different regions are uniformly exposed to the heating assembly, ensuring consistent heating conditions and thereby producing consistent aerosol quality throughout the heating process.

Inventive Principle:
Principle #15Dynamics

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

Ensures consistent aerosol production, improves inhalation taste by avoiding repetitive heating, and enhances user experience through adjustable aerosol generation.

Implementation Method 1

the heating assembly is configured to heat a corresponding substrate portion to generate an aerosol

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Data Source

PatentUS20250288007A1Aerosol-generating device
Publication Date: 2025.09.18 SHENZHEN MERIT TECH CO LTD
  • US20250288007A1 patent drawing
  • US20250288007A1 patent drawing
  • US20250288007A1 patent drawing

AI summary

An aerosol-generating device includes: a holder; a rotating assembly; a heating assembly; and a driving assembly. The rotating assembly, the heating assembly, and the driving assembly are mounted on the holder. The rotating assembly drives an aerosol-generating substrate to rotate, the aerosol-generating substrate including a plurality of substrate portions. The heating assembly corresponds to at least one substrate portion of the plurality of substrate portions, and the heating assembly heats a corresponding substrate portion to generate an aerosol. The driving assembly drives the rotating assembly and/or the heating assembly to rotate relative to the holder so as to switch the at least one substrate portion corresponding to the heating assembly.