Porous Glass-Ceramic Atomization Core With Uniform Composition
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Solution Overview
Problem
Conventional ceramic materials used in e-cigarette atomization cores, such as diatomite, have poor thermal impact resistance and strength, leading to local detachment and fracture, which affects the service life of the porous substrate.
Innovation Solution
The use of a porous glass-ceramic substrate with controlled main element content and composition uniformity, including a crystalline phase and amorphous phase, enhances the strength and stability of the atomization core.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional ceramic materials such as diatomite are used for the porous substrate, then the atomization core can be manufactured, but the strength and thermal impact resistance are poor, causing local detachment and fracture
Solution Approach 1:
The patent applies parameter changes by precisely controlling the main element content (e.g., SiO2, Al2O3, CaO) within specific ranges and ensuring composition uniformity (element content difference between any two measurement areas is less than 10%). This controlled parameter approach transforms the ceramic material properties to achieve both high strength and thermal shock resistance while maintaining reliability
Solution Approach 2:
The patent uses composite materials by combining multiple ceramic oxides (SiO2, Al2O3, CaO, MgO, etc.) in specific proportions to create a glass-ceramic composite substrate. This composite structure integrates the advantages of different materials to achieve enhanced strength, thermal stability, and resistance to thermal shock, preventing local detachment and fracture
2Ease of manufacture
If the porous substrate has complex composition, then it can be manufactured, but the thermal impact resistance is poor, leading to local detachment and fracture
Solution Approach 1:
The patent applies parameter changes by defining specific ranges for main element contents (e.g., SiO2: 60-75 wt%, Al2O3: 10-20 wt%, CaO: 5-15 wt%) and controlling composition uniformity. This standardized parameter control enables consistent manufacturing while achieving excellent thermal impact resistance and preventing local detachment
Solution Approach 2:
The patent applies homogeneity by requiring that the element content difference between any two measurement areas be less than 10%. This uniform composition distribution throughout the porous substrate ensures consistent thermal properties and mechanical strength, preventing localized weak points that would cause fracture under thermal impact
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 porous glass-ceramic substrate provides improved thermal shock resistance, stability, and longer service life with better e-liquid guiding and reduced soot generation, maintaining consistent strength and reliability.
Implementation Method 1
The porous substrate is usually made of a material with a porous structure, such as a cotton core and a porous ceramic, to achieve a function of guiding an atomization medium toward the heating element
Implementation Method 2
a main atomization manner of a commercially available e-cigarette is resistance heating atomization, and e-liquid is atomized through heating of an atomization core
Data Source
AI summary
An atomization core, an atomizer, and an electronic atomization device are provided. The atomization core includes a porous substrate and a heating element. The porous substrate is a porous glass-ceramic substrate. The porous glass-ceramic substrate includes a first measurement area and a second measurement area. By atomic percentage, a main element content in the first measurement area is denoted as M %, and a corresponding main element content in the second measurement area is denoted as N %, where |M−N|/M is less than 10% and/or |M−N|/N is less than 10%. The length of the measurement area is greater than 1 μm. The main element is an element more than 20% in the porous glass-ceramic substrate.