Aerosol Heater Control Using Initial Temperature and Delay Hold
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Solution Overview
Problem
Aerosol generating devices experience deviations in preheating time when used in different environments or with different aerosol generating articles, leading to non-uniform smoking experiences due to variations in heater temperature.
Innovation Solution
An aerosol generating device equipped with a heater, temperature sensor, and processor that measures the initial heater temperature and adjusts the heating operation based on a preset temperature profile, including a delay after reaching a second temperature to minimize preheating time deviations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If power is supplied according to the same profile in different environments, then the heating operation is simplified and easy to control, but the preheating time deviates and smoking experience becomes non-uniform
Solution Approach 1:
The patent applies dynamics by making the heating operation adaptive rather than static. The processor dynamically adjusts the heating profile based on the measured initial temperature of the heater, selecting from multiple preset temperature profiles to ensure uniform smoking experience across different environments while maintaining ease of operation through automated adjustment.
Solution Approach 2:
The patent changes the heating parameters (temperature profile) based on the initial temperature condition. By measuring the initial temperature and selecting appropriate temperature profiles from multiple presets, the system optimizes preheating time and ensures consistent smoking experience without requiring manual intervention.
2Device complexity
If the heater operates without temperature-based adjustments, then the device complexity is reduced, but the preheating time deviation increases
Solution Approach 1:
The patent applies preliminary action by measuring the initial temperature of the heater before starting the heating operation. Based on this preliminary measurement, the processor selects the appropriate temperature profile in advance, ensuring optimal preheating time without adding significant complexity to the device.
Solution Approach 2:
The patent implements feedback by using the temperature sensor to measure the initial heater temperature and feed this information back to the processor. The processor then adjusts the heating operation based on this feedback, minimizing preheating time deviation while maintaining reasonable device complexity.
3Reliability
If multiple temperature profiles are used to minimize preheating time deviation, then the smoking experience uniformity is improved, but the device complexity increases
Solution Approach 1:
The patent manages device complexity by organizing multiple temperature profiles as preset parameters. The processor selects from these predefined profiles based on the initial temperature measurement, achieving uniform smoking experience without requiring complex real-time calculations or additional hardware.
4Speed
If the heating operation starts immediately without temperature measurement, then the response time is reduced, but the preheating time deviation increases
Solution Approach 1:
The patent performs preliminary temperature measurement immediately when the aerosol generating article is inserted, before the heating operation begins. This preliminary action enables the system to select the appropriate temperature profile quickly, minimizing both response time and preheating time deviation.
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 device provides a uniform smoking experience by minimizing preheating time deviations across different environments and aerosol generating articles, ensuring consistent heating performance without user input.
Implementation Method 1
a temperature sensor configured to measure a temperature of the heater
Implementation Method 2
a heater configured to heat an aerosol generating article
Implementation Method 3
control the heater to perform the heating operation according to a preset temperature profile
Data Source
AI summary
An aerosol generating device includes: a heater configured to heat an aerosol generating article; a temperature sensor configured to measure a temperature of the heater; and a processor configured to: obtain an initial temperature of the heater which is measured by the temperature sensor when a user input for starting an heating operation of the heater is received, compare the initial temperature of the heater with a first temperature; based on the initial temperature being lower than the first temperature, control the heater to perform the heating operation according to a preset temperature profile; and when the temperature of the heater reaches a second temperature higher than the first temperature, control the heater to stop the heating operation for a first delay time.