Vaporization Core Oxide Layer for Heating Stability
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Solution Overview
Problem
Metal heating films in vaporization cores are prone to oxidation and failure, especially with insufficient oil supply, leading to reduced stability and service life in electronic vaporization devices.
Innovation Solution
A vaporization core comprising a porous substrate with a heating layer and an oxide layer, where the oxide layer, made of aluminum oxide or silicon oxide, is deposited on the heating layer to protect it from oxidation, and electrodes are arranged on the oxide layer to prevent direct air contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a metal heating film is used in the vaporization core, then the heating efficiency is improved, but the heating film oxidizes and fails when oil supply is insufficient, reducing stability and service life
Solution Approach 1:
The patent uses a composite structure consisting of a metal heating layer combined with a carbon layer. The metal heating layer provides high heating efficiency, while the carbon layer serves as a protective barrier that prevents oxidation of the metal heating film, especially under insufficient oil supply conditions. This composite material approach resolves the contradiction by combining materials with complementary properties.
2Duration of action of stationary object
If a protective coating is applied to prevent oxidation, then the service life is extended, but the device complexity increases
Solution Approach 1:
The patent employs a porous carbon layer as the protective coating. This porous structure provides effective oxidation protection while maintaining good wettability and capillary action for oil supply. The carbon layer is formed through a simple pyrolysis process from a binder layer, avoiding complex multi-step coating procedures and reducing overall device complexity despite adding protective functionality.
3Reliability
If precious metals are used to replace the heating film, then the oxidation resistance is improved, but the production cost increases significantly
Solution Approach 1:
Instead of using expensive precious metals like platinum or gold for the heating film, the patent employs a low-cost metal heating layer (such as nickel or stainless steel) protected by a carbon coating. This approach achieves comparable oxidation resistance to precious metals but at a fraction of the cost, making the product economically viable for mass production while maintaining reliability.
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 oxide layer effectively prevents oxidation of the heating layer, enhancing its stability and extending the service life while reducing production costs compared to using precious metals.
Implementation Method 1
the metal heating film may oxidize and fail when the oil supply is insufficient
Implementation Method 2
the vaporizer heats and vaporizes an aerosol generation substrate in an energized state to generate an aerosol
Data Source
AI summary
A vaporization core includes: a porous substrate having a vaporization surface; a heating layer arranged on the vaporization surface of the porous substrate; and an oxide layer arranged on a surface of the heating layer away from the porous substrate. In an embodiment, the oxide layer comprises aluminum oxide and/or silicon oxide.