Atomizing Sheet Heating-Rate Detection for Real-Time Dry Heating

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Solution Overview

Problem

Existing electronic vaporization devices face issues with dry heating, which can damage the atomizing sheet, reduce vaporization performance, and lead to a loss of vaporization function, and current detection methods are inadequate for detecting dry heating caused by poor liquid supply.

Innovation Solution

A method to detect dry heating by monitoring the heating rate of the atomizing sheet, determining the vaporization state based on the heating rate, and setting thresholds to identify abnormal heating conditions, without the need for sensors that contact the medicinal liquid.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If temperature detection is performed during user suction, then dry burning detection is timely, but it causes delay effect and affects user experience

Engineering Contradiction:
Improvedry burning detection accuracyVSAvoiddetection delay
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent performs dry burning detection before the heating component is activated for user suction, rather than during suction. This preliminary detection approach allows the system to identify dry burning conditions before they affect user experience, while avoiding detection delays during actual usage. The method calculates temperature based on resistance values obtained before heating starts, ensuring timely detection without interfering with the suction process.

Inventive Principle:
Principle #10Preliminary action

2Measurement precision

If sensors such as probes are used to contact medicinal liquid for detection, then liquid level can be detected, but detection accuracy is reduced and device complexity increases

Engineering Contradiction:
Improvedetection accuracyVSAvoidsensor requirement
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent replaces mechanical contact sensors (probes) with an electrical measurement approach. Instead of using physical sensors to detect liquid level, the system measures the resistance value of the heating component, which changes based on whether liquid is present. This substitution eliminates the need for additional mechanical sensors, reduces device complexity, and maintains high detection accuracy by utilizing the inherent electrical properties of the heating element.

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

Solution Approach 2:

The heating component serves dual purposes: it functions as both the heating element and the detection sensor. The resistance value of the heating component itself provides information about liquid presence, eliminating the need for separate detection sensors. This self-service approach simplifies the device structure while maintaining accurate detection capabilities.

Inventive Principle:
Principle #25Self-service

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

Accurately detects dry heating in real-time, preventing damage to the atomizing sheet and maintaining device performance by stopping the vaporizer when dry heating is detected.

Implementation Method 1

a heating component (300) is detected

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Implementation Method 2

medicinal liquid is vaporized into tiny particles

Methodology Applied
Scientific EffectVaporization: Evaporation

Data Source

PatentEP4194038B1Vaporization state recognition method, apparatus, electronic device and storage medium
Publication Date: 2025.10.01 SHENZHEN MOORE HEALTH MEDICAL TECH CO LTD
  • EP4194038B1 patent drawingFigure 1~3
  • EP4194038B1 patent drawingFigure 4~5
  • EP4194038B1 patent drawingFigure 6~7

AI summary

This application discloses a vaporization state recognition method, an apparatus, an electronic device and a storage medium. The vaporization state recognition method including: obtaining (S1) a heating rate of an atomizing sheet of a vaporizer; and determining (S2) a vaporization state of the vaporizer according to the heating rate. Therefore, whether the vaporizer is dry heating may be recognized in time and the dry heating of the vaporizer may be dealt with in time. In addition, during recognizing the vaporization state of the vaporizer, there is no need to use a sensor such as a probe to contact medicinal liquid, so that a detection is more accurate.