Aerosol Device Heating Control Prevents Dry Heating
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Solution Overview
Problem
Aerosol-generating devices often experience dry heating in the final stage of heating an aerosol-generating product, leading to poor user experience due to the inability to detect remaining content in the product.
Innovation Solution
A heating control method that involves obtaining the first heating power and time for each atomization stage, determining the atomization energy, and controlling the power output function if the difference between the sum of atomization energy and the preset total atomization energy is less than or equal to a threshold.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the aerosol-generating device continues heating in the final stage, then the heating function remains available, but dry heating occurs and user experience deteriorates
Solution Approach 1:
The system performs preliminary detection of atomization medium remaining content before the heating stage ends. By calculating the difference between cumulative atomization energy and preset total atomization energy, the system predicts when the atomization medium will be depleted and takes preventive action by locking the power output function in advance, avoiding dry heating while maintaining heating function availability throughout the valid usage period.
2Reliability
If the device detects remaining content accurately, then dry heating is prevented, but detection complexity increases
Solution Approach 1:
The system implements a feedback mechanism by continuously monitoring heating power and time parameters, calculating cumulative atomization energy, and comparing it with preset total atomization energy. This feedback loop provides real-time information about atomization medium consumption, enabling accurate detection of remaining content without requiring complex physical sensors, thus preventing dry heating through intelligent energy management.
3Object-affected harmful factors
If the power output function is locked early, then dry heating is avoided, but the atomization medium may not be fully utilized
Solution Approach 1:
The system dynamically adjusts the locking decision based on the calculated parameter of energy difference. By setting a threshold for the difference between cumulative atomization energy and preset total atomization energy, the system determines the optimal moment to lock the power output function. This parameter-based control ensures that the atomization medium is fully utilized up to the point where remaining content would cause dry heating, maximizing utilization while preventing harmful effects.
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 prevents dry heating by ensuring that the aerosol-generating device reduces power output and locks the power function when the atomization medium is insufficient, maintaining the quality of the aerosol and enhancing user experience.
Implementation Method 1
an aerosol-generating device is configured to heat and atomize an aerosol-generating product containing an atomization medium, to generate aerosol
Implementation Method 2
obtaining a first heating power and a first heating time of an aerosol-generating product in each atomization stage
Data Source
AI summary
A heating control method includes: in a heating stage, obtaining a first heating power and a first heating time of an aerosol-generating product in each atomization stage, and determining atomization energy generated by the first heating power within the first heating time in each atomization stage; and in response, if a difference between a sum of atomization energy generated by a plurality of atomization stages in the heating stage and preset total atomization energy of the aerosol-generating product is less than or equal to a first threshold, controlling a power output function of an aerosol-generating device.