Ultrasonic Atomization Assembly for Low-Temperature Aerosol Generation
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Solution Overview
Problem
Aerosol generating devices that heat aerosol materials to high temperatures often produce a burnt taste, and there is a need for a method to generate aerosols at lower temperatures while preventing material leakage and splattering.
Innovation Solution
An aerosol generating device using a cartridge with an atomizer that generates aerosols through ultrasonic vibrations, incorporating liquid delivery elements to absorb and deliver aerosol materials to the atomizer, and a processor to control power supply.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a heater is used to heat aerosol generating materials to high temperatures, then aerosol generation is achieved, but burnt taste is produced
Solution Approach 1:
The patent replaces the thermal field (heater) with an ultrasonic vibration field. The atomizer generates ultrasonic vibrations to atomize the aerosol generating material directly without heating, substituting mechanical vibration for thermal processing. This resolves the contradiction by achieving aerosol generation at low temperatures, eliminating burnt taste while maintaining effective atomization.
Solution Approach 2:
The patent changes the fundamental parameter of aerosol generation from temperature-based (thermal) to vibration-based (mechanical). By using ultrasonic vibrations at frequencies typically above 20 kHz, the system achieves phase change and atomization through mechanical energy rather than thermal energy, maintaining aerosol generation effectiveness while avoiding high temperature-related harmful effects.
2Reliability
If liquid delivery elements are added to deliver aerosol material, then material delivery control is improved, but device complexity increases
Solution Approach 1:
The patent implements a nested structure where the second liquid delivery element is positioned inside or around the first liquid delivery element. This nested arrangement allows multiple delivery functions to be integrated in a compact configuration, improving material delivery control through layered delivery mechanisms while minimizing the increase in overall device complexity through space-efficient design.
Solution Approach 2:
The patent introduces liquid delivery elements as intermediary components between the aerosol generating material reservoir and the atomizer. These intermediaries control and regulate the flow of aerosol generating material, ensuring reliable delivery while maintaining a modular structure that doesn't excessively complicate the overall device architecture.
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 device produces aerosols at lower temperatures, improving user experience by preventing splattering and leakage, thus enhancing smoking sensation and reducing device failures.
Implementation Method 1
an atomizer that is located inside the housing and generates ultrasonic vibrations to atomize the aerosol generating material into an aerosol
Data Source
AI summary
An atomization assembly for an aerosol generating device includes an atomizer configured to atomize an aerosol generating material to generate an aerosol, a first liquid delivery element configured to absorb an aerosol generating material from a reservoir for storing the aerosol generating material, and a second liquid delivery element arranged between the first liquid delivery element and the atomizer and configured to deliver the aerosol generating material absorbed by the first liquid delivery element to the atomizer.