Atomization Device Material Detection via Heating-Element Resistance
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Solution Overview
Problem
Conventional methods for detecting the presence of an aerosol-forming material in an atomization device suffer from inaccurate determination due to the high variability in initial resistances of mass-produced heating elements, leading to potential overheating and quality issues in generated aerosols.
Innovation Solution
A detection method that controls the heating element to operate in a preset mode with multiple heating stages, measuring the resistance difference between specific stages to determine the presence of the aerosol-forming material, independent of the initial resistance, thereby ensuring accurate detection and preventing dry heating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the real-time resistance of the heating element is detected and compared with a threshold, then the detection method is simple, but misjudgment occurs due to high resistance variability in mass-produced heating elements, affecting detection accuracy
Solution Approach 1:
The patent applies preliminary action by detecting the resistance of the heating element before the actual heating operation starts. This initial resistance detection allows the system to establish a baseline and determine whether the aerosol-forming material is present before heating begins, preventing misjudgment that would occur during heating when resistance varies due to temperature changes and material consumption.
Solution Approach 2:
The patent uses the resistance detection as an intermediary indicator to indirectly determine the presence of the aerosol-forming material. Instead of directly measuring material presence, the system measures the heating element's resistance, which changes predictably when material is present versus when it is exhausted, providing a reliable indirect detection method.
2Productivity
If continuous heating is applied to the aerosol-forming material, then the atomization function is maintained, but the temperature exceeds the upper limit when the material is nearly exhausted, causing adverse effects on aerosol quality
Solution Approach 1:
The patent implements feedback by continuously monitoring the resistance of the heating element during operation and using this information to detect when the aerosol-forming material is nearly exhausted. When the resistance indicates material exhaustion, the system provides feedback to reduce or stop heating, preventing temperature from exceeding the upper limit and causing adverse effects on aerosol quality.
Solution Approach 2:
The patent applies preliminary anti-action by detecting the near-exhaustion state of the aerosol-forming material before actual overheating occurs. By monitoring resistance changes in advance, the system can take preemptive action to reduce or stop heating, preventing the harmful overheating effect rather than reacting after the problem has occurred.
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 method enhances the reliability and safety of the atomization device by accurately detecting the presence of the aerosol-forming material, preventing overheating, and maintaining the quality of generated aerosols.
Implementation Method 1
a heating element for heating and atomizing an aerosol-forming material
Implementation Method 2
heating and atomizing an aerosol-forming material to generate aerosols
Implementation Method 3
the real-time resistance of the heating element in a heating atomization component is detected
Data Source
AI summary
A detection method for an atomization device having a heating element for heating and atomizing an aerosol-forming material, the detection method including: controlling the heating element to work in a preset mode, the preset mode including at least two first heating stages, heating powers corresponding to the at least two first heating stages matching, and working time lengths corresponding to the at least two heating stages matching; obtaining a first resistance difference corresponding to a target heating stage in the at least two first heating stages, the target heating stage including an operation stage other than an operation stage corresponding to an initial operation; and determining a presence status of the aerosol-forming material based on a numerical relationship between the first resistance difference and a difference threshold.