Infrared Heating Assembly with Antioxidant Layer for Oxidation Control
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Solution Overview
Problem
Existing heating methods in heat-not-burn atomization systems face issues such as substrate oxidation and overheating due to direct thermal conduction, leading to instability and poor puffing taste, and the need for complex sealing or inert gas filling to prevent oxidation, which increases manufacturing costs.
Innovation Solution
A heating assembly that generates infrared light waves and includes an antioxidant layer on the heating substrate, allowing the heating portion to be spaced apart from the sleeve, enabling a non-sealed accommodating cavity and reducing direct contact, while using an infrared radiation layer to heat the aerosol generating substrate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If direct thermal conduction heating method is used, then heating efficiency is improved, but substrate overheating and oxidation occur
Solution Approach 1:
The patent introduces an antioxidant layer as an intermediary between the heating element and the substrate. This layer prevents direct contact between the heating element and substrate, thereby preventing oxidation while still allowing heat transfer. The antioxidant layer acts as a protective mediator that resolves the contradiction between efficient heating and preventing harmful oxidation.
Solution Approach 2:
The patent replaces direct thermal conduction (mechanical heat transfer through contact) with infrared radiation heating. The heating element generates infrared light waves that pass through the antioxidant layer to heat the substrate without direct contact. This substitution eliminates the need for physical contact, preventing oxidation while maintaining heating efficiency.
2Object-affected harmful factors
If sealed mounting space or inert gas filling is used to prevent oxidation, then substrate oxidation is prevented, but device complexity and manufacturing cost increase
Solution Approach 1:
The antioxidant layer serves as a simple intermediary barrier that prevents oxidation without requiring complex sealing structures or inert gas filling. This single layer approach eliminates the need for vacuum sealing or inert gas environments, significantly simplifying the device structure and manufacturing process while effectively preventing substrate oxidation.
Solution Approach 2:
The patent extracts the oxidation prevention function from the complex sealing system and concentrates it into a single antioxidant layer. By removing the need for sealed mounting spaces or inert gas filling, the solution isolates the critical oxidation prevention function while eliminating unnecessary complexity.
3Temperature
If heating element works at high temperatures around 400°C, then heating performance is improved, but substrate material oxidation occurs
Solution Approach 1:
The antioxidant layer acts as a protective intermediary that allows the heating element to operate at high temperatures (around 400°C) without causing oxidation of the substrate. The layer absorbs or blocks oxygen from reaching the substrate during heating, enabling high-temperature operation while preventing harmful oxidation effects.
Solution Approach 2:
The patent replaces direct thermal conduction heating with infrared radiation heating. The heating element generates infrared light waves that pass through the antioxidant layer to heat the substrate without direct contact. This substitution enables higher operating temperatures for the heating element while preventing substrate oxidation through the non-contact heating mechanism.
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
This design prevents substrate oxidation, simplifies assembly, reduces manufacturing costs, and allows higher working temperatures without overheating the substrate, improving atomization stability and puffing taste.
Implementation Method 1
a heating portion configured to generate infrared light waves in a power-on state
Implementation Method 2
an antioxidant layer arranged on an outer surface of the heating substrate and configured to prevent the heating substrate from being oxidized
Data Source
AI summary
The present disclosure relates to an aerosol generating device and a heating assembly. The heating assembly includes a heating portion configured to generate infrared light waves in a power-on state and a sleeve for the infrared light waves to pass through. The heating portion includes a heating substrate, an antioxidant layer arranged on the outer surface of the heating substrate and configured to prevent the heating substrate from being oxidized, and an infrared radiation layer arranged on the side of the antioxidant layer away from the heating substrate. An accommodating cavity configured to accommodate the heating portion and non-sealed is formed in the sleeve. In the heating assembly, with the antioxidant layer, the sleeve's accommodating cavity doesn't require sealing, vacuuming, or inert gas filling. This simplifies the assembly process and cuts manufacturing costs.