Aerosol Heater Temperature Control for Stable Aerosol Delivery
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Solution Overview
Problem
Aerosol generators face challenges in quickly heating a heater to a stable temperature suitable for aerosol generation, leading to reduced smoking quality due to temperature fluctuations during extended use.
Innovation Solution
An aerosol generator with a controller that adjusts electric power to the heater to rapidly reach and maintain a reference temperature, compensating for temperature drops by adjusting the target temperature based on accumulated differences between the heater's temperature and the reference temperature.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the heater is heated to a high temperature within a short period of time, then the preparation time for aerosol generation is reduced, but the temperature of the heater tends to fall below the reference temperature as smoking proceeds, causing degradation in smoking quality
Solution Approach 1:
The patent implements dynamic temperature control by adjusting the target temperature based on accumulated temperature differences. The controller dynamically modifies the target temperature upward when the heater temperature falls below the reference temperature, ensuring the heater maintains optimal temperature throughout smoking duration rather than using a fixed target temperature
Solution Approach 2:
The patent employs feedback control by continuously monitoring the heater temperature, calculating the accumulated difference between actual and reference temperatures, and adjusting the target temperature accordingly. This closed-loop feedback mechanism ensures the heater temperature remains stable and prevents degradation in smoking quality
2Reliability
If the heater temperature is maintained at a reference temperature, then smoking quality is consistent, but the heater takes longer to reach the reference temperature initially
Solution Approach 1:
The patent implements periodic control actions by adjusting power supply to the heater in cycles. The controller periodically monitors temperature and adjusts the target temperature and power supply accordingly, enabling the heater to reach reference temperature quickly while maintaining it consistently throughout smoking
Solution Approach 2:
The system dynamically adjusts the target temperature based on the heating stage. During initial heating, the target temperature is set higher to accelerate warming. Once the reference temperature is reached, the target temperature is adjusted to maintain consistent temperature, thus reducing preparation time while ensuring smoking quality
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 approach reduces preparation time for aerosol generation, ensures consistent aerosol delivery, and prevents degradation in smoking quality by maintaining the heater's temperature within the optimal range.
Implementation Method 1
a heater for heating a cigarette accommodated in the aerosol generator, a battery for supplying electric power to the heater
Data Source
AI summary
An aerosol generator includes a heater for heating a cigarette accommodated in the aerosol generator, a battery for supplying electric power to the heater, and a controller configured to: control the electric power supplied to the heater to increase a temperature of the heater to a reference temperature or greater, the reference temperature being set to be suitable for generating aerosol from the cigarette, set a target temperature of the heater, control the electric power supplied to the heater based on the target temperature such that the temperature of the heater is maintained at the reference temperature, and adjust the target temperature to compensate for the temperature of the heater when the temperature of the heater decreases below the reference temperature.