Ceramic Heating Assembly with Cross-Hole Liquid Supply
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Solution Overview
Problem
Existing heating bodies in electronic atomization devices suffer from low absorption and transmission efficiency of aerosol-forming substrates, leading to issues such as dry burning, carbon accumulation, and burnt flavor due to bubble formation on thin heating bodies.
Innovation Solution
A heating assembly with a dense substrate featuring opposite liquid absorbing and atomizing surfaces, containing vertical and transverse holes that penetrate both surfaces, with specific hole diameter and spacing ratios to prevent bubble blockage and ensure continuous liquid supply.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a thin heating body is used to improve liquid supplying capability, then liquid supplying capability is improved, but bubbles are easily formed on the liquid absorbing surface which blocks liquid intaking and leads to dry burning
Solution Approach 1:
The patent employs a porous ceramic substrate as the heating body, utilizing its porous structure to capillary-conduct liquid from the liquid storage cavity through the substrate to the heating film. This porous material approach enables sufficient liquid supply without requiring a thin structure that would be prone to bubble formation, thereby resolving the contradiction between liquid supplying capability and dry burning prevention.
Solution Approach 2:
The patent introduces a liquid storage cavity as an intermediary component that stores liquid and supplies it to the porous ceramic substrate through capillary action. This intermediary structure ensures continuous liquid supply to the heating film, preventing bubble formation and dry burning while maintaining efficient liquid supply capability.
2Productivity
If a porous ceramic body is used with high hole diameter and porosity to implement sufficient liquid supplying, then liquid supplying is improved, but liquid leakage risk increases
Solution Approach 1:
The patent utilizes a porous ceramic substrate with optimized porosity and hole diameter characteristics. The porous structure provides sufficient liquid supply capability through capillary action while maintaining appropriate hole size constraints to prevent liquid leakage, resolving the contradiction between liquid supplying and leakage prevention.
Solution Approach 2:
The patent optimizes the parameters of the porous ceramic substrate, specifically the hole diameter and porosity, to achieve the right balance between liquid supply and leakage prevention. By carefully controlling these parameters, the substrate can supply sufficient liquid without causing leakage.
3Productivity
If a cotton rope or fiber rope structure is used, then absorption and transmission of aerosol-forming substrate is achieved, but the structure stability is poor leading to dry burning and carbon accumulation
Solution Approach 1:
The patent employs a composite structure combining a porous ceramic substrate with a heating film. This composite material approach provides both the absorption and transmission capabilities needed for aerosol-forming substrate while ensuring structural stability through the ceramic base, preventing the dry burning and carbon accumulation issues associated with cotton or fiber rope structures.
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
Prevents bubble formation and dry burning by maintaining consistent liquid supply, enhancing the atomization process and reducing the risk of burnt flavor.
Implementation Method 1
the plurality of vertical holes penetrate the liquid absorbing surface and the atomizing surface, and the plurality of transverse holes are in communication with the plurality of vertical holes
Data Source
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AI summary
This application discloses a heating assembly, an atomizer, and an electronic atomization device. The heating assembly includes a dense substrate, and the dense substrate includes a liquid absorbing surface and an atomizing surface that are arranged opposite to each other. The dense substrate includes a plurality of vertical holes and a plurality of transverse holes, the plurality of vertical holes penetrate the liquid absorbing surface and the atomizing surface, and the plurality of transverse holes are in communication with the plurality of vertical holes, to prevent bubbles from blocking liquid supplying through the plurality of transverse holes, thereby further preventing dry burning.