Atomization Airflow Sensing Layout to Block Condensate Contact

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Solution Overview

Problem

Traditional e-cigarettes suffer from insensitive airflow detection due to issues with sensing elements, which can lead to accidental activation and corrosion from condensate accumulation.

Innovation Solution

The atomization device design includes a sensing passageway positioned higher than the air inlet end, preventing condensate from reaching the sensing element, thereby avoiding accidental activation and corrosion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the sensing element is positioned at the air inlet end to detect airflow changes, then the detection sensitivity is improved, but the sensing element is prone to contact with condensate causing corrosion and accidental activation

Engineering Contradiction:

Improveairflow detection sensitivityVSAvoidsensing element stability

Core Design Contradiction:

Measurement precisionVSReliability

Solution Approach 1:

The sensing passageway is positioned at a higher vertical level than the air inlet end of the atomization chamber, creating a height difference that prevents condensate from reaching the sensing element while maintaining airflow detection capability

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The sensing passageway acts as an intermediary structure that allows airflow to reach the sensing element while blocking condensate through gravitational separation based on height difference

Inventive Principle:

Principle #24Intermediary (Mediator)

2Speed

If the sensing element is exposed to the air inlet end for direct airflow detection, then the response speed is improved, but condensate accumulates and causes accidental activation

Engineering Contradiction:

Improveactivation response speedVSAvoidaccidental activation from condensate

Core Design Contradiction:

SpeedVSObject-generated harmful factors

Solution Approach 1:

By positioning the sensing passageway at a higher vertical level, the design enables rapid airflow detection while using gravitational potential energy difference to prevent condensate from reaching the sensing element

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The height difference creates a gravitational barrier that counteracts the downward flow of condensate, preventing it from reaching the sensing element while allowing air flow detection

Inventive Principle:

Principle #8Anti-weight (Counterweight)

3Measurement precision

If the sensing element is placed in direct contact with the atomization chamber air inlet, then the detection accuracy is improved, but the lifespan of the sensing element decreases due to corrosion

Engineering Contradiction:

Improveairflow detection accuracyVSAvoidsensing element lifespan

Core Design Contradiction:

Measurement precisionVSDuration of action of stationary object

Solution Approach 1:

The sensing passageway is positioned at a higher vertical level than the air inlet end, creating spatial separation that maintains detection accuracy through airflow while preventing condensate contact to extend sensing element lifespan

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The elevated sensing passageway serves as an intermediary that transmits airflow information to the sensing element while blocking condensate through gravitational separation

Inventive Principle:

Principle #24Intermediary (Mediator)

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 design extends the lifespan of the sensing element by preventing contact with condensate, maintaining detection sensitivity and reliability.

Implementation Method 1

the sensing element is configured to actuate the atomization assembly to operate when detecting a change in airflow at the air inlet end

Methodology Applied

Scientific EffectAirflow detection:

Implementation Method 2

substances with higher density such as condensate in the atomization chamber are prone to flow to the lower air inlet end under the action of gravity

Methodology Applied

Scientific EffectGravity: Gravitation

Data Source

PatentEP4678029A1Atomization device and aerosol generation apparatus

Publication Date: 2026.01.14 IMIRACLE (HK) LIMITED

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AI summary

An atomization device and an aerosol generation device are disclosed. The aerosol generation device includes a power supply assembly and the atomization device, with the atomization device being electrically connected to the power supply assembly. The atomization device includes a housing, an atomization assembly, an air inlet passageway, a sensing passageway, and a sensing element. The atomization assembly is located inside the housing. The atomization assembly has an atomization chamber formed through it for generating aerosols. The atomization chamber has an air outlet end and an air inlet end in the height direction of the housing, with the air inlet end being lower than the air outlet end. The air inlet passageway communicates with the air inlet end to supply air to the atomization chamber. One end of the sensing passageway communicates with the air inlet end, and the sensing element is provided at the other end of the sensing passageway. In the height direction of the housing, at least a portion of the sensing passageway is higher than the air inlet end. The sensing element is used to drive the atomization assembly to start operating when a change in the airflow at the air inlet end is detected.