Atomization Element Stabilizing Layer Resistance Stability
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Solution Overview
Problem
Existing electronic atomization devices face issues with rapid increase in resistance value of the conductive layer, leading to instability and leakage of aerosol-generating material, and poor stability of the heating element.
Innovation Solution
An atomization element with a porous substrate and a heating layer comprising a conductive layer and a stabilizing layer, where the stabilizing layer has a higher resistivity and lower oxidation resistance than the conductive layer, and is made from materials like aluminum and Ti-Zr alloy, respectively, with specific thickness ranges and electrode materials like silver, to maintain stable resistance and prevent oxidation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a conductive layer is used for heating in the atomization element, then heating efficiency is improved, but resistance value increases excessively fast during operation
Solution Approach 1:
The patent applies composite materials by combining a conductive layer (made of materials like nickel, copper, or their alloys) with a stabilizing layer (made of oxidation-resistant materials like aluminum oxide, silicon oxide, or titanium oxide). This composite structure allows the conductive layer to provide efficient heating while the stabilizing layer prevents oxidation and resistance increase, thus resolving the contradiction between heating efficiency and resistance stability.
2Use of energy by moving object
If the conductive layer is made with high conductivity materials, then power efficiency is improved, but oxidation resistance deteriorates leading to rapid resistance increase
Solution Approach 1:
The stabilizing layer acts as an intermediary between the conductive layer and the oxidizing environment. It is applied over the conductive layer to form a protective barrier that prevents oxygen from reaching and oxidizing the high-conductivity materials. This allows the conductive layer to maintain its excellent electrical conductivity and power efficiency while the stabilizing layer shields it from oxidation, thus resolving the contradiction between power efficiency and oxidation resistance.
3Device complexity
If a single-layer heating structure is used, then device complexity is reduced, but service life and stability are insufficient
Solution Approach 1:
The heating structure is segmented into two distinct functional layers: a conductive layer responsible for efficient heat generation and a stabilizing layer responsible for preventing oxidation and maintaining stability. This segmentation allows each layer to be optimized for its specific function - the conductive layer for power efficiency and the stabilizing layer for durability - thereby extending the service life of the atomization element while keeping the overall structure relatively simple.
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 provides a stable resistance value during heating, preventing excessive resistance increase and ensuring excellent and consistent taste, while reducing the risk of aerosol-generating material leakage and improving the service life of the heating element.
Implementation Method 1
the heating layer includes a conductive layer and a stabilizing layer, the conductive layer covers the atomization surface... so as to heat and atomize an e-liquid on the atomization surface
Implementation Method 2
oxidation resistance of the stabilizing layer is lower than oxidation resistance of the conductive layer
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
Disclosed are an electronic atomization device, an atomization assembly (100), an atomization element (40) and a manufacturing method therefor. The atomization element (40) comprises a porous matrix (42) and a heating layer, wherein the porous substrate (42) is provided with an atomization surface (422); and the heating layer covers the atomization surface (422). The heating layer comprises a conductive layer (44) and a stable layer (46), wherein the conductive layer (44) covers the atomization surface (422); and the stable layer (46) covers the surface of the conductive layer (44) away from the porous matrix (42). The resistivity of a material for preparing the stable layer (46) is lower than that of the conductive layer (44), and the oxidation resistance of the stable layer (46) is higher than that of the conductive layer (44), so as to solve the problem of the resistance value of the conductive layer (44) rising too quickly.