Microwave-Responsive Capsule for Uniform Aerosol Heating
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Solution Overview
Problem
Existing aerosol generating systems heat aerosol articles unevenly, leading to incomplete transfer of active ingredients, inconsistent flavor delivery, and require preheating times due to conductive heating methods, with capsules requiring user intervention for flavor release.
Innovation Solution
An aerosol generating article heated by microwaves with microwave-responsive capsules that are crushed automatically, ensuring uniform heating and consistent flavor release without user intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a heating element heats the aerosol generating article by surrounding or inserting into it, then the aerosol generating article can be heated, but the heating is uneven causing incomplete transfer of active ingredients and inconsistent flavor delivery
Solution Approach 1:
The heating element is divided into multiple heating units arranged around the aerosol generating article. Each heating unit independently heats a specific region, and the combined effect achieves uniform heating throughout the article, resolving the uneven heating problem while ensuring consistent active ingredient transfer and flavor delivery.
2Temperature
If heat conduction from a heating element is used, then the aerosol generating article can be heated, but a certain preheating time is required and the beginning aerosol does not include sufficient active ingredients
Solution Approach 1:
The heating element operates in periodic cycles with varying power output. During the initial phase, higher power is applied to rapidly heat the article and release active ingredients. Subsequent phases use adjusted power levels to maintain optimal temperature, eliminating the need for prolonged preheating while ensuring sufficient active ingredient content in the initial aerosol.
Solution Approach 2:
The heating power parameter is dynamically adjusted during the heating process. The system transitions from high power initial heating to optimized power levels, changing the heating parameters to achieve rapid heating without excessive preheating time, thereby reducing the time loss while maintaining adequate active ingredient transfer.
3Loss of substance
If a capsule with shell is used to contain flavoring material, then the flavoring material is protected from loss, but a user must manually crush the capsule which is difficult depending on shell properties
Solution Approach 1:
The manual mechanical crushing action is replaced by microwave radiation. The capsule shell is designed with microwave-responsive materials that absorb microwave energy and heat up, causing the shell to crack and open automatically. This eliminates the need for manual crushing while maintaining flavoring material retention during the encapsulated state.
Solution Approach 2:
The capsule shell undergoes a phase transition from a stable, intact state to a cracked, open state through microwave heating. The microwave energy causes thermal expansion and structural degradation of the shell material, transforming it from a protective barrier to an opened container that releases the flavoring material without requiring mechanical intervention.
4Strength
If the capsule shell is made thick and strong to prevent flavoring material loss, then the shell provides better protection, but the capsule becomes harder to crush manually
Solution Approach 1:
The mechanical crushing operation is replaced by microwave heating. The shell's strength and thickness are maintained to prevent flavoring material loss, but the microwave-responsive material property allows the shell to crack and open automatically through thermal energy absorption, eliminating the contradiction between strength and ease of crushing.
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
Uniform heating of the aerosol article ensures consistent delivery of active ingredients throughout the heating period, reduces preheating times, and facilitates easy capsule crushing for controlled flavor release.
Implementation Method 1
an aerosol generating article that includes an aerosol generating material that is heated by being exposed to microwaves
Implementation Method 2
the first shell includes a first microwave-responsive material
Data Source
AI summary
An aerosol generating article includes an aerosol generating material that is heated by being exposed to microwaves, and a first capsule that is crushed by being exposed to the microwaves, wherein the first capsule incudes a first core including a first material and a first shell surrounding the first core, and the first shell includes a first microwave-responsive material.