Vaporization Core With Microgroove Array For Uniform Heating
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Solution Overview
Problem
Current electronic vaporization devices, such as cotton core and ceramic vaporizers, suffer from non-uniform heating, leading to the generation of harmful gases and difficulties in controlling the e-liquid flow channel, resulting in poor reliability and reduced nicotine transmission efficiency.
Innovation Solution
A vaporization core with a dense substrate featuring a microgroove array and a heating element that heats the substrate within the microgrooves, ensuring uniform heating and preventing direct contact between the heating element and the e-liquid, thereby avoiding chemical reactions and improving e-liquid flow control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a metal heating wire wrapped around a fiber rope is used as a vaporizer, then the structure is simple and easy to manufacture, but the heating is non-uniform and harmful gases are generated
Solution Approach 1:
The patent uses a porous ceramic substrate instead of a metal wire and fiber rope structure. The porous structure provides uniform heat distribution and controlled e-liquid flow through capillary action, eliminating the non-uniform heating and harmful gas generation associated with metal heating elements while maintaining manufacturing feasibility.
Solution Approach 2:
The patent employs a composite structure combining porous ceramic substrate with controlled microchannels. This composite design integrates the benefits of porous material for uniform heating with precisely controlled flow channels, resolving the contradiction between simple manufacturing and harmful gas prevention.
2Temperature
If a porous ceramic vaporizer is used, then uniform heating is achieved, but the flow channel structure is difficult to control and e-liquid may leak
Solution Approach 1:
The patent segments the porous ceramic substrate into controlled microchannels with specific geometries. This segmentation allows precise control over e-liquid flow paths while maintaining the uniform heating benefits of porous material, preventing leakage by directing flow through defined channels rather than uncontrolled porous structures.
Solution Approach 2:
The patent applies local quality by creating regions with different pore sizes and channel geometries within the ceramic substrate. E-liquid flow channels have controlled dimensions to prevent leakage, while vaporization regions maintain porous structure for uniform heating, allowing both requirements to be satisfied in different locations.
3Ease of operation
If porous ceramic with micropores is used, then e-liquid can be transmitted through capillary action, but the structure adsorbs and filters e-liquid components reducing nicotine transmission efficiency
Solution Approach 1:
The patent segments the ceramic structure into distinct functional zones: microchannels for e-liquid transport that minimize adsorption, and porous regions for vaporization. This segmentation separates the capillary action function from the vaporization function, allowing efficient nicotine transmission while maintaining ease of operation through capillary-driven flow.
4Power
If metal heating element is in direct contact with e-liquid, then heating efficiency is high, but chemical stability is poor and safety hazards occur
Solution Approach 1:
The patent introduces a ceramic intermediary layer between the heating element and e-liquid. The ceramic material provides thermal conductivity for efficient heating while offering chemical stability and inertness, preventing direct contact between the metal heating element and e-liquid, thereby eliminating safety hazards while maintaining heating efficiency.
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 safer, more reliable vaporization process with improved nicotine transmission and fragrance preservation by maintaining the e-liquid's integrity and preventing the adsorption of solutes, enhancing the overall user experience.
Implementation Method 1
a first heating element, arranged on the second surface and configured to heat the first substrate to vaporize the aerosol-generation substrate in the plurality of first microgrooves
Implementation Method 2
the first microgroove array comprising a plurality of first microgrooves, the plurality of first microgrooves being configured to guide a flowing of an aerosol-generation substrate
Implementation Method 3
the first heating element, arranged on the second surface and configured to heat the first substrate to vaporize the aerosol-generation substrate in the plurality of first microgrooves
Data Source
AI summary
A vaporization core for heating and vaporizing an aerosol-generation substrate includes: a first substrate having a first surface and a second surface opposite the first surface, the first surface being provided with a first microgroove array, the first microgroove array including a plurality of first microgrooves, the plurality of first microgrooves guiding a flowing of an aerosol-generation substrate, the first substrate including a dense material; and a first heating element arranged on the second surface for heating the first substrate to vaporize the aerosol-generation substrate in the plurality of first microgrooves.