Infrared Heating Structure for Rapid Aerosol Substrate Heating
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Solution Overview
Problem
Existing heat-not-burning (HNB) atomization technologies face issues with heating elements directly or indirectly conducting heat to aerosol generating substrates, leading to overheating, unpleasant smells, and long preheating times, which affect the vaping experience.
Innovation Solution
A heating structure with an infrared radiation layer on the heating substrate that radiates infrared light waves through a tube body, allowing the heating element to operate at higher temperatures without direct contact, reducing preheating time and enhancing vaping experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the heating element directly conducts heat to the aerosol generating substrate through solid material, then the substrate can be heated, but the operating temperature cannot be too high or the substrate will overheat and produce unpleasant smells
Solution Approach 1:
The patent introduces infrared radiation as an intermediary heating method. The heating element radiates infrared energy through the tube wall to heat the substrate without direct thermal contact. This mediator (infrared radiation) allows high-temperature operation of the heating element while preventing substrate overheating, as the infrared energy can be precisely controlled and absorbed by the substrate at appropriate temperatures.
Solution Approach 2:
The patent replaces the traditional mechanical/thermal conduction heating system with an optical/infrared heating system. Instead of relying on direct thermal conduction through solid contact, the heating element emits infrared radiation that penetrates the tube wall and heats the substrate optically. This substitution enables higher operating temperatures without the harmful effects of direct thermal contact.
2Productivity
If the heating element directly heats the substrate through conduction, then the substrate can be heated, but the preheating time is relatively long averaging over 15 seconds
Solution Approach 1:
The patent replaces thermal conduction with infrared radiation for heating. Infrared radiation provides more direct and efficient energy transfer to the substrate compared to thermal conduction through solid materials. This substitution significantly reduces the preheating time from over 15 seconds to a much shorter duration, thereby improving heating efficiency and reducing time loss.
Solution Approach 2:
The patent employs periodic pulsed infrared heating cycles. The heating element operates in periodic pulses, delivering concentrated infrared energy bursts to the substrate. This periodic action accelerates the heating process by providing intermittent high-intensity energy input, reducing the overall preheating time while maintaining effective substrate heating.
3Productivity
If the heating element operates at high temperature, then heating efficiency is improved, but the solid material produces unpleasant smells affecting vaping experience
Solution Approach 1:
The patent uses infrared radiation as an intermediary that decouples the heating element temperature from the substrate temperature. The heating element can operate at high temperatures to generate sufficient infrared energy, while the substrate is heated to appropriate temperatures through infrared absorption without direct thermal contact. This prevents the solid material from decomposing and producing unpleasant smells while maintaining high heating efficiency.
Solution Approach 2:
The patent replaces thermal conduction with infrared radiation to eliminate the pathway for harmful volatile物质 transfer. By using optical/infrared heating instead of direct thermal contact, the system achieves high heating efficiency while preventing the solid material from reaching temperatures that cause decomposition and unpleasant odors, thereby improving vaping experience.
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 enables rapid heating to high temperatures without overheating the substrate, reducing preheating time to nearly instantaneous vaping and improving taste and efficiency.
Implementation Method 1
the heating substrate is configured to be powered on for heating and exciting the infrared radiation layer to radiate infrared light waves, wherein the infrared light waves are configured to heat an aerosol generating substrate
Implementation Method 2
the heating substrate is configured to be powered on for heating and exciting the infrared radiation layer to radiate infrared light waves
Data Source
AI summary
A heating structure includes: a heating element; and a tube body. The heating element includes a heating substrate and an infrared radiation layer provided on an outer surface of the heating substrate. The heating substrate is powered on for heating and exciting the infrared radiation layer to radiate infrared light waves. The heating element is at least partially spaced apart from a tube wall of the tube body. The tube wall of the tube body allows the infrared light waves to penetrate through. The infrared light waves heat an aerosol generating substrate.