Vaporizer Heating Assembly With Gradient Capillary Gap
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Solution Overview
Problem
Existing heating bodies in electronic vaporization devices suffer from bubble formation on the liquid absorbing surface, leading to dry burning and inefficient liquid transmission, particularly in thin heating bodies.
Innovation Solution
A heating assembly comprising a first and second substrate with opposing surfaces, forming a gap with a gradient height and capillary effect to guide aerosol-generation substrate, and incorporating a heating component for vaporization, which prevents bubble stagnation and ensures 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 supply efficiency is improved, but bubbles are easily formed on the liquid absorbing surface causing dry burning
Solution Approach 1:
The heating body is divided into multiple layers: a first substrate (liquid absorbing layer), a second substrate (heating layer), and a third substrate (liquid guiding layer). This segmentation allows each layer to perform its specific function independently, preventing bubble formation while maintaining efficient liquid supply.
Solution Approach 2:
The second substrate acts as an intermediary between the first and third substrates. It includes a vaporization region and a non-vaporization region, mediating the liquid flow and heat transfer to prevent direct contact between bubbles and the liquid absorbing surface, thus preventing dry burning.
2Productivity
If a porous ceramic body is used for liquid guiding and storage, then liquid supply capability is improved, but position distribution and size precision of micropores cannot be accurately controlled
Solution Approach 1:
The second substrate is designed with different regions having different properties: a vaporization region with specific micropore characteristics for liquid supply, and a non-vaporization region for structural support. This local differentiation allows precise control over micropore distribution and size in the critical vaporization area while maintaining overall structural integrity.
Solution Approach 2:
The second substrate utilizes porous ceramic material with controlled micropores to guide liquid flow. The porous structure provides both liquid supply capability and precise flow control, enabling accurate positioning of liquid to the heating element while maintaining manufacturing feasibility.
3Reliability
If pore size and porosity are decreased to reduce liquid leakage risk, then liquid leakage is reduced, but liquid guiding capability is limited causing burnt flavor under high power condition
Solution Approach 1:
The system segments liquid flow control across multiple layers: the first substrate absorbs liquid, the second substrate guides it through controlled micropores in the vaporization region, and the third substrate ensures proper distribution. This segmentation allows optimization of pore sizes in different regions - smaller pores in the vaporization region for precise control, larger pores in other regions for adequate supply.
Solution Approach 2:
Different regions of the second substrate have different pore characteristics tailored to their specific functions. The vaporization region has smaller, more precisely controlled micropores for accurate liquid delivery, while other regions have larger pores for robust liquid supply, achieving both leakage prevention and guiding capability.
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 effectively prevents dry burning by facilitating the discharge of bubbles and ensuring consistent liquid supply, enhancing the vaporization process and preventing liquid leakage.
Implementation Method 1
the second surface and the third surface are arranged opposite to each other to form a gap including a capillary effect, and the gap communicates the plurality of second micropores and the liquid inlet
Data Source
AI summary
A heating assembly for an electronic vaporization device having an aerosol-generation substrate is disclosed. The heating assembly comprises a first substrate comprising a first surface and a second surface arranged opposite to each other, and a second substrate, comprising a third surface and a fourth surface arranged opposite to each other. The second surface and the third surface are arranged opposite to each other to form a gap having a capillary effect and a gradually changing height. An edge of the first substrate is provided with a liquid inlet formed thereon or by the edge of the first substrate with another component. The gap communicates the plurality of second micropores and the liquid inlet. The second substrate comprises a plurality of second micropores configured to guide the aerosol-generation substrate from the gap to the fourth surface.