Infrared Coated Heating Body for Faster Aerosol Substrate Preheating
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Solution Overview
Problem
Existing infrared heating devices for smoking sets suffer from low power supply utilization efficiency due to infrared ray reflection at the interface between the infrared electrothermal coating and the base body, leading to reduced preheating and smoke generation speed, impacting user experience.
Innovation Solution
A multi-layer heating body structure is introduced, featuring a base body with a rough outer surface, an infrared electrothermal coating, and an infrared radiation coating with higher square resistance and lower thermal conductivity than the electrothermal coating, designed to minimize infrared ray reflection and enhance energy absorption and reradiation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If an infrared electrothermal coating is formed on the base body surface, then heat generation and transfer to the aerosol generating substrate is improved, but infrared ray reflection occurs at the interface between the coating and base body, reducing power supply utilization efficiency
Solution Approach 1:
The patent applies an infrared radiation coating on the outer surface of the infrared electrothermal coating to convert the harmful infrared ray reflection into beneficial infrared radiation. The coating absorbs incident infrared rays and re-radiates them, transforming the energy loss into useful heating energy that contributes to heating the aerosol generating substrate more effectively.
Solution Approach 2:
The patent creates a composite heating structure by combining the infrared electrothermal coating (for heat generation) with the infrared radiation coating (for infrared ray absorption and re-radiation). This composite material system leverages the complementary properties of both coatings to achieve both heat generation and infrared radiation enhancement, thereby improving overall heating efficiency and reducing energy loss from reflection.
2Productivity
If the infrared electrothermal coating radiates infrared rays towards the smoking product, then heating efficiency is improved, but heat is also radiated towards the periphery, reducing preheating and smoke generation speed
Solution Approach 1:
The infrared radiation coating converts the peripheral heat radiation loss into beneficial infrared radiation that returns to the chamber. The coating absorbs infrared rays that would otherwise be lost to the periphery and re-radiates them back toward the aerosol generating substrate, transforming energy loss into enhanced heating efficiency and faster preheating and smoke generation.
3Strength
If a base body is used to contain the aerosol generating substrate, then structural support is provided, but a reflecting interface is created at the interface between the base body and infrared electrothermal coating, reducing power supply utilization
Solution Approach 1:
The patent converts the harmful reflecting interface created by the base body into a beneficial infrared radiation interface. By adding the infrared radiation coating on the outer surface of the infrared electrothermal coating, the structure transforms the reflected infrared rays into absorbed and re-radiated infrared energy, converting the structural constraint into an opportunity for enhanced infrared radiation heating.
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 multi-layer structure improves energy utilization and heating efficiency by reducing infrared ray reflection and enhancing the absorption and reradiation of infrared rays, thereby increasing the preheating and smoke generation speed.
Implementation Method 1
an infrared electrothermal coating, which is formed on an outer surface of the base body and is configured for receiving an electric power of a power supply to generate heat
Implementation Method 2
transferring the heat to the aerosol generating substrate product received in the chamber at least in an infrared radiation manner
Implementation Method 3
an infrared radiation coating, which at least partially covers the infrared electrothermal coating, the infrared radiation coating being capable of radiating infrared rays after a temperature rise
Data Source
Figure 1~2
Figure 3
AI summary
Disclosed is a heating device, which is used for heating an aerosol generating substrate product and volatilizing at least one component therein to form an aerosol. The heating device comprises a heating body (11), wherein the heating body (11) comprises: a base body (111) provided with a chamber for receiving at least part of the aerosol generating substrate product; an infrared electrothermal coating (112), which is formed on the outer surface of the base body (111), used for receiving a power supply to generate heat and transfers the heat to the aerosol generating substrate product received in the chamber at least in an infrared radiation manner, so as to volatilize at least one component in the aerosol generating substrate product to form an aerosol which can be vaped; an electrode coating (113) part of the outer surface of the infrared electrothermal coating (112) and used for supplying the electric power of the power supply to the infrared electrothermal coating (112); and an infrared radiation coating (115) at least partially covering the infrared electrothermal coating (112), wherein the infrared radiation coating (115) can radiate infrared rays after a temperature rise. The heating device can improve the power efficiency of the power supply of the infrared electrothermal coating (112).