Aerosol Heater Feedback Control for Uniform Infrared Heating
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing aerosol generating devices using conduction transfer function for heating aerosol substrates experience temperature differences leading to insufficient heating and potential burning or insufficient atomization due to non-uniform temperature distribution.
Innovation Solution
A temperature control method and system that utilizes infrared light transfer through a spaced heating element and housing, with temperature sensors and a control system to adjust heating power based on temperature signals and target temperatures, ensuring uniform heating of aerosol substrates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If conduction transfer function is used for heating aerosol substrate, then heating efficiency is improved, but temperature distribution uniformity deteriorates
Solution Approach 1:
The patent replaces the conduction-based heating system with an infrared radiation-based heating system. The heating element emits infrared light that penetrates the aerosol substrate, transforming the heating mechanism from contact-based conduction to wave-based radiation, thereby achieving uniform temperature distribution without sacrificing heating efficiency
Solution Approach 2:
The patent changes the heating parameter from conductive heat transfer to infrared radiation. By adjusting the emission characteristics of the heating element and selecting appropriate infrared wavelengths, the system achieves both high heating efficiency and uniform temperature distribution throughout the aerosol substrate
2Productivity
If heating temperature is increased to improve atomization, then atomization performance is improved, but risk of burning increases
Solution Approach 1:
The patent implements a feedback control system using temperature sensors to monitor the temperature of the aerosol substrate in real-time. The control system adjusts the heating power based on the detected temperature, ensuring the substrate reaches optimal atomization temperature without exceeding the burning threshold, thus achieving both high atomization performance and preventing burning
Solution Approach 2:
The patent employs dynamic temperature control where the heating power is continuously adjusted based on real-time temperature feedback. This dynamic adjustment allows the system to optimize atomization performance at each moment while preventing overheating and burning, rather than using a fixed high temperature
3Object-affected harmful factors
If heating temperature is decreased to prevent burning, then burning risk is reduced, but atomization performance deteriorates
Solution Approach 1:
The feedback control system continuously monitors temperature and adjusts heating power to maintain optimal atomization conditions. This ensures sufficient heating for good atomization performance while preventing temperature from rising to burning levels, resolving the contradiction between preventing burning and maintaining atomization performance
4Use of energy by moving object
If heating element is placed close to aerosol substrate for efficient heating, then heating efficiency is improved, but temperature control precision deteriorates
Solution Approach 1:
The patent replaces close-contact conduction heating with infrared radiation heating, allowing the heating element to be positioned at an optimal distance from the aerosol substrate. The infrared radiation efficiently heats the substrate through the space between the heating element and substrate, maintaining heating efficiency while enabling better temperature control and measurement
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
Stabilizes atomization performance and enhances user experience by uniformly heating aerosol substrates, preventing burning and ensuring consistent atomization.
Implementation Method 1
supply power to a heating element in a receiving cavity. After the heating element converts the power into heat energy
Implementation Method 2
the heating element needs to be controlled, thereby controlling the temperatures of the aerosol generating substrates to avoid situations such as burning caused by a high temperature
Data Source
AI summary
A temperature control method applied to an aerosol generating device that includes a heating element and a housing, the heating element being powered on and heated up to generate infrared light to heat an aerosol generating substrate, the heating element and the housing being at least partially spaced apart, the infrared light capable of passing through the housing, the method including: obtaining a temperature signal of the housing; generating an adjustment signal by using a preset algorithm based on the temperature signal and a target temperature; and controlling a heating power of the heating element based on the adjustment signal so as to adjust a temperature of the heating element.