Detachable Microwave Resonant Cavity for Clean Aerosol Heating

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Solution Overview

Problem

The inner and outer conductors in microwave resonant cavities of aerosol generating devices are not easily disassembled, leading to condensation of vaporized aerosol, which forms dirt and affects inhalation taste and human health.

Innovation Solution

The aerosol generating device features a detachable conductor assembly comprising a first and second conductor that form a resonant cavity, allowing easy disassembly for cleaning, and a microwave assembly to generate aerosols without a heating member like a resistance wire, using microwave heating to ensure cleanliness and safety.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If the inner conductor and outer conductor are fixed together to form a stable resonant cavity, then the structural stability is improved, but the ease of disassembly and cleaning deteriorates

Engineering Contradiction:

Improvestructural stabilityVSAvoidease of disassembly

Core Design Contradiction:

Stability of the object's compositionVSEase of operation

Solution Approach 1:

The conductor assembly is divided into separate components: a first conductor (outer conductor) and a second conductor (inner conductor), which can be detachably combined to form the resonant cavity. This segmentation allows the conductors to be easily separated for cleaning while maintaining structural stability during operation through proper connection mechanisms.

Inventive Principle:

Principle #1Segmentation

2Ease of repair

If the conductors are easily disassembled for cleaning, then the ease of maintenance is improved, but the structural stability of the resonant cavity deteriorates

Engineering Contradiction:

Improveease of cleaningVSAvoidstructural stability

Core Design Contradiction:

Ease of repairVSStability of the object's composition

Solution Approach 1:

The connection between the first and second conductors is designed to be dynamically changeable - firmly connected during operation to maintain resonant cavity stability, and easily separable during cleaning. The detachable connection mechanism allows transition between these two states, providing both operational stability and maintenance ease.

Inventive Principle:

Principle #15Dynamics

3Temperature

If a resistance wire heating member is used, then the heating function is achieved, but the risk of contamination and overheating increases

Engineering Contradiction:

Improveheating capabilityVSAvoidcontamination risk

Core Design Contradiction:

TemperatureVSObject-affected harmful factors

Solution Approach 1:

The mechanical resistance wire heating system is replaced with a microwave heating system. The microwave assembly generates electromagnetic waves that directly heat the aerosol generating article without physical contact, eliminating the contamination risk associated with resistance wires while maintaining effective heating capability.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

4Use of energy by moving object

If the resonant cavity is sealed to maintain microwave containment, then the microwave efficiency is improved, but the accumulation of condensed aerosol and dirt worsens

Engineering Contradiction:

Improvemicrowave efficiencyVSAvoiddirt accumulation

Core Design Contradiction:

Use of energy by moving objectVSObject-generated harmful factors

Solution Approach 1:

The resonant cavity structure is segmented into detachable conductor components that can be separated. This allows the cavity to remain sealed during operation for microwave efficiency, while enabling easy access for cleaning and removing accumulated dirt and condensed aerosol by disassembling the conductor assembly.

Inventive Principle:

Principle #1Segmentation

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 design facilitates easy cleaning, reduces dirt accumulation, maintains good inhalation taste, and ensures user safety by avoiding contamination and overheating issues associated with resistive heating.

Implementation Method 1

The microwave assembly is configured to feed a microwave into the resonant cavity, for the aerosol generating article to generate an aerosol

Methodology Applied

Scientific EffectMicrowave heating: Dielectric Heating

Implementation Method 2

the first conductor and the second conductor are detachably combined and jointly form a resonant cavity

Methodology Applied

Scientific EffectResonance: Resonance

Data Source

PatentUS20260068942A1Aerosol generating device and aerosol generating system

Publication Date: 2026.03.12 VERDEWELL INT HLDG LTD

AI summary

An aerosol generating device includes a conductor assembly and a microwave assembly. The conductor assembly includes a first conductor and a second conductor that jointly form a resonant cavity. The resonant cavity includes at least a heating region, and the heating region is configured to heat an aerosol generating article. The microwave assembly is configured to feed a microwave into the resonant cavity to generate an aerosol.