Membrane Heater Wrap for Uniform Aerosol Substrate Heating
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Solution Overview
Problem
Existing aerosol generating systems face challenges in uniformly heating the substrate, leading to inefficient aerosol production.
Innovation Solution
The system incorporates a film-shaped heater wrapped with a heat diffusion layer composed of a high-heat-conductivity first layer and a high-tensile-strength second layer, ensuring even heat distribution across the tubular member.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a film heater is simply wrapped around a tubular member, then the device complexity is reduced, but the heating uniformity and effectiveness deteriorate
Solution Approach 1:
The patent applies composite materials by combining a film heater with a heat diffusion layer made of high-heat-conductivity material. This composite structure allows the simple wrapped configuration to achieve uniform heat distribution across the substrate, resolving the contradiction between device simplicity and heating effectiveness.
Solution Approach 2:
The heat diffusion layer acts as an intermediary between the film heater and the substrate. It receives heat from the heater and distributes it uniformly to the substrate surface, enabling the simple wrapped heater structure to achieve effective and uniform heating without increasing device complexity.
2Temperature
If the heat diffusion layer uses only high-heat-conductivity material, then heat distribution improves, but the structural integrity and durability deteriorate
Solution Approach 1:
The patent uses a composite heat diffusion layer combining a first layer of high-heat-conductivity material for heat distribution and a second layer of high-tensile-strength material for structural integrity. This composite structure resolves the contradiction between heat distribution performance and mechanical durability.
Solution Approach 2:
The heat diffusion layer is segmented into two functional layers: a first layer dedicated to heat conduction and a second layer dedicated to providing tensile strength. This segmentation allows each layer to optimize its specific function while working together as an integrated component.
3Reliability
If the second layer is made longer than the first layer, then the bonding coverage and structural stability improve, but the material consumption increases
Solution Approach 1:
The second layer is made slightly longer than the first layer to ensure complete coverage and proper bonding at the edges, providing excess material that guarantees structural reliability without significant additional material consumption. This partial excess action ensures bonding coverage while minimizing waste.
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
This configuration allows for more effective heating of the substrate, resulting in improved aerosol generation and consistency.
Implementation Method 1
a first layer and a second layer are laminated together, the first layer having a heat conductivity greater than or equal to a first threshold
Implementation Method 2
a heater that is film-shaped and disposed on an outer side surface of the tubular member
Data Source
AI summary
This aerosol generating system includes a cylindrical member having an opening into which an aerosol generating article containing an aerosol source is inserted, a membranal heating part disposed on the outer side surface of the cylindrical member, and a heat diffusion layer in which a first layer having heat conductivity equal to or higher than a first threshold and a second layer having tensile strength equal to or higher than a second threshold are laminated, wherein the heat diffusion layer is disposed such that the heat diffusion layer is wound to cover the outer side of the heating part disposed on the outer side surface of the cylindrical member in the state where the first layer faces inward and the second layer faces outward.