Infrared Heating Structure for Aerosol Temperature Control
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Solution Overview
Problem
Existing aerosol generating devices face challenges in maintaining optimal working temperatures above 400°C without overheating the aerosol generating substrate, leading to inconsistent puffing taste and prolonged preheating times.
Innovation Solution
A heating structure with a heating element that radiates infrared light waves and a temperature measurement unit, where the heating element and tube wall are partially spaced apart, allowing for precise temperature control and measurement, enabling temperatures up to 1000°C-1300°C without overheating the substrate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the heating element works at temperatures above 400°C, then the atomization efficiency is improved, but the aerosol generating substrate may be overheated affecting puffing taste
Solution Approach 1:
The patent introduces an infrared-transparent tube body as an intermediary between the heating element and the aerosol generating substrate. This tube allows infrared radiation to pass through while providing thermal isolation, enabling the heating element to operate at high temperatures without directly transferring excessive heat to the substrate, thus maintaining both atomization efficiency and preventing substrate overheating.
Solution Approach 2:
The patent replaces direct thermal conduction heating with infrared radiation heating. The heating element radiates infrared light waves that pass through the transparent tube body to heat the substrate, eliminating the need for direct mechanical/thermal contact between the heating element and substrate, thereby enabling precise temperature control and preventing localized overheating.
2Speed
If the heating element operates at high temperatures, then the heating speed is improved, but temperature control precision deteriorates
Solution Approach 1:
The patent incorporates a temperature measurement unit that provides real-time temperature feedback from the heating element. This feedback mechanism enables the control system to monitor and adjust the heating element's temperature dynamically, ensuring precise temperature control even when operating at high temperatures above 400°C, thus resolving the contradiction between heating speed and temperature control precision.
3Use of energy by moving object
If the heating element is in direct contact with the tube wall, then heat transfer efficiency is improved, but temperature measurement accuracy deteriorates
Solution Approach 1:
The patent introduces a temperature measurement unit as an intermediary component that is electrically connected to the heating element but physically isolated from the tube wall. This allows accurate temperature measurement of the heating element without the measurement device interfering with the heat transfer process between the heating element and the substrate through the infrared-transparent tube.
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 solution ensures precise atomization of the aerosol generating substrate, improving puffing taste and reducing preheating time, while maintaining accurate temperature measurement for consistent performance.
Implementation Method 1
a heating element configured to radiate infrared light waves in a power-on state
Data Source
AI summary
A heating structure includes: a heating element for radiating infrared light waves in a power-on state; a tube body for the infrared light waves to pass through; and a temperature measurement unit for temperature measurement. The heating element and a tube wall of the tube body are at least partially spaced apart. The heating element includes a heating portion and a conductive portion electrically connected to the heating portion. One end of the temperature measurement unit is connected to one end of the heating portion. An other end of the temperature measurement unit is electrically connected to the conductive portion.