Infrared Heating Structure for Aerosol Substrate Temperature Control
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Solution Overview
Problem
Existing aerosol generating devices face issues with overheating of the substrate due to high working temperatures, affecting vaping taste and requiring long preheat times, as the heating element directly transfers heat through conduction, limiting the temperature range and efficiency.
Innovation Solution
A heating structure with a heating element that radiates infrared waves and is partially spaced apart from a tube body, featuring multiple heating sections arranged in an M or N shape, allowing for segmented heating and precise temperature control, with a maximum working temperature up to 1000°C.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the heating element directly transfers heat to the aerosol generating substrate through heat conduction, then the substrate can be heated to atomization temperature, but the working temperature of the heating element cannot be excessively high or overheating of the substrate will be caused, affecting the vaping taste
Solution Approach 1:
The patent introduces an air gap as an intermediary thermal management mechanism between the heating element and the aerosol generating substrate. This air gap acts as a thermal mediator that allows controlled heat transfer while preventing direct thermal contact, thereby enabling the heating element to operate at higher temperatures without causing substrate overheating. The air gap provides thermal isolation while still permitting sufficient heat transfer for atomization.
2Object-affected harmful factors
If the heating element operates at low temperature to prevent substrate overheating, then the vaping taste is maintained, but the preheat time is greatly extended to 15 seconds or more
Solution Approach 1:
The patent implements dynamic thermal management by adjusting the heating element's operating temperature based on real-time conditions. The system can operate at higher temperatures when needed (reducing preheat time) while the air gap prevents harmful overheating of the substrate. This dynamic approach allows the system to optimize between speed and safety, eliminating the need for excessively long preheat times while still protecting the substrate from overheating.
3Productivity
If the heating element is configured for high-temperature working state above 400°C, then the preheat time is reduced, but the aerosol generating substrate easily overheats, affecting the vaping taste
Solution Approach 1:
The patent segments the thermal interaction between the heating element and the substrate by introducing an air gap that physically separates them. This segmentation allows the heating element to operate independently at high temperatures for improved productivity, while the substrate is protected from direct high-temperature exposure. The thermal field is effectively segmented into a high-temperature zone (heating element) and a controlled-temperature zone (substrate), enabling high-temperature operation without substrate overheating.
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 prevents substrate overheating, improves vaping taste, and significantly reduces preheat time, providing efficient and stable atomization with precise temperature control.
Implementation Method 1
a heating element configured to radiate an infrared wave in a powered-on state
Implementation Method 2
a tube body disposed in conjunction with the heating element, the tube body being configured to allow the infrared wave to pass through
Data Source
AI summary
A heating structure includes: a heating element for radiating an infrared wave in a powered-on state; and a tube body disposed in conjunction with the heating element, the tube body allowing the infrared wave to pass through. The heating element is at least partially spaced apart from a tube wall of the tube body. The heating element includes a heating part and a conductive part. The heating part includes at least two heating sections arranged spaced apart. The heating sections are electrically connected to the conductive part.