Dense-Substrate Heating Body With Micropores for Atomization
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Solution Overview
Problem
The heat conduction efficiency of porous heating bodies made of dense substrates, such as glass, is relatively poor compared to those with disordered through holes, affecting atomizing efficiency in electronic atomizing devices.
Innovation Solution
A heating body with a dense substrate featuring a liquid absorbing surface and an atomizing surface, where a plurality of micropores extend through from the absorbing surface to the atomizing surface, and the atomizing surface is treated with a wetting structure to enlarge the wetted area, improving atomizing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a dense substrate with through holes is used as a heating body, then the structural integrity and durability are improved, but the heat conduction efficiency deteriorates compared to porous substrates
Solution Approach 1:
The patent introduces a micropore structure within the dense substrate, creating a hierarchical pore system where micropores (1-100 μm) extend from the liquid absorbing surface to the atomizing surface. This porous configuration increases the surface area for heat transfer and improves capillary action for e-liquid delivery, thereby enhancing heat conduction efficiency while preserving the structural integrity of the dense substrate material.
Solution Approach 2:
The heating body combines a dense substrate material (such as glass or ceramic) with a micropore structure and a wetting structure coating, creating a composite system. The dense substrate provides mechanical strength, while the micropore network and wetting structure enhance thermal performance and liquid distribution, achieving both structural integrity and improved heat conduction efficiency.
2Use of energy by moving object
If a porous substrate with disordered through holes is used, then the heat conduction efficiency is improved, but the manufacturing precision and structural control deteriorate
Solution Approach 1:
The patent segments the pore structure into distinct hierarchical levels: micropores (1-100 μm) for liquid transport and larger pores for structural support. This segmentation allows each level to perform its specific function optimally while maintaining overall manufacturing precision through controlled formation processes.
Solution Approach 2:
The patent applies different properties to different regions of the substrate. The micropores are concentrated in the heating region to enhance heat conduction, while the wetting structure is applied specifically to the atomizing surface to improve liquid distribution. This localized optimization achieves high heat conduction efficiency without compromising overall manufacturing precision.
3Productivity
If the atomizing surface area is increased to improve atomizing efficiency, then more e-liquid can be heated, but the heat conduction efficiency deteriorates due to larger thermal mass
Solution Approach 1:
The patent transitions from a two-dimensional surface heating approach to a three-dimensional volumetric heating approach by introducing micropores that extend through the substrate thickness. This allows heat to be distributed throughout the volume rather than just the surface, enabling larger effective atomizing area without proportionally increasing thermal mass, thus maintaining heat conduction efficiency while improving atomizing efficiency.
Solution Approach 2:
The micropore structure provides internal surface area for heat transfer without increasing the external footprint or thermal mass proportionally. The porous network allows e-liquid to access heated surfaces throughout the substrate volume, enhancing atomizing efficiency while the controlled pore dimensions prevent excessive thermal mass accumulation.
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 enlarged wetted area on the atomizing surface enhances the atomizing efficiency by allowing more aerosol-generation substance to be attached and heated, resulting in improved aerosol production.
Implementation Method 1
the heat conduction efficiency of a dense substrate defining through holes is relatively poor when compared with a porous substrate defining disordered through holes
Implementation Method 2
a wetting structure on which surface treatment is performed, and the wetting structure is fluidly coupled to the plurality of micropores. Therefore, a wetted area of the atomizing surface is enlarged
Data Source
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AI summary
Disclosed are a heating body, an atomizer and an electronic atomization device. aerosol-generation substanceThe heating body comprises a compact base body, which has a liquid suction surface and an atomization surface arranged opposite each other and is provided with a plurality of micropores that penetrate the liquid suction surface and the atomization surface. The atomization surface is of the surface-treated wetting structure that is in communication with the micropores in a liquid guide manner, which increases the wetting area of the atomization surface, thereby improving the atomization efficiency.