Aerosol Inhalator Heated Pathway Segmentation
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Solution Overview
Problem
Existing aerosol inhalators face issues with maintaining stable quality due to volatile constituents evaporating and thermal degradation caused by exposure to ambient air and electric heaters, leading to inconsistent aerosol delivery.
Innovation Solution
An aerosol inhalator design featuring a protected pathway with a heating device downstream of the solution feed position, utilizing a radiation member or cooling device to control temperature and prevent evaporation, and an open-close valve to seal the solution chamber during non-use, ensuring consistent aerosol generation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the tube is open to ambient air via the mouthpiece and the end portion is exposed to heat from the electric heater, then the solution can be heated to generate aerosol, but the volatile constituents evaporate and escape from the solution in the tube, causing thermal degradation and unstable aerosol quality
Solution Approach 1:
The patent divides the solution pathway into two distinct zones: a protected upstream portion (liquid chamber and feed position) that remains isolated from heat, and a heated downstream portion (aerosol generation passage) where evaporation occurs. This segmentation allows selective heating of only the necessary portion while preserving solution stability in the storage and feed regions.
Solution Approach 2:
The patent introduces an intermediary mechanism (the protected pathway with selective exposure) that mediates between the heating requirement and solution stability requirement. The solution is transported through a protected pathway to a feed position, where only the emerging portion is heated, acting as an intermediary zone between the cold storage and hot generation regions.
2Speed
If the heating device is kept operating to keep the aerosol inhalator ready for use, then quick aerosol generation is achieved, but heat transferred to the feed position causes the solution to evaporate and escape before reaching the heating zone
Solution Approach 1:
The patent segments the solution pathway into a protected feed region and a heated generation region, allowing the heating device to operate continuously for quick aerosol generation while the segmentation prevents heat from reaching the bulk solution, eliminating premature evaporation and substance loss.
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 evaporation and thermal degradation, maintaining the solution's quality and ensuring a fixed amount of aerosol with consistent quality is inhaled by the user.
Implementation Method 1
a heating device disposed on the aerosol generation passage, downstream of the feed position, for heating the solution conveyed from the feed position toward the mouthpiece with a drawn-in flow of air created in the aerosol generation flow passage by the mouthpiece being sucking on, thereby causing the solution to evaporate and turn into an aerosol
Implementation Method 2
The reduction device may include a radiation member surrounding the aerosol generation passage
Implementation Method 3
The protector may include a valve arranged between the feed position and the liquid supply device... The valve can therefore seal the liquid chamber of the supply device, between the feed position and the liquid supply device, thereby protecting the solution in the liquid chamber from the environment
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
An aerosol inhalator has an aerosol generation passage extending from an ambient air inlet (2) to a mouthpiece (4), a liquid supply device (18) for feeding a predetermined amount of a solution to a feed position (A) in the passage (6), a ceramic heater (12) for heating the solution conveyed from the feed position (A) toward the mouthpiece (4) with a drawn-in flow of air created in the passage (6) by a user's sucking action, thereby causing the solution to evaporate and turn into an aerosol in the passage (6), and a protector provided at least either at a location near the feed position (A) or at a location between the feed position (A) and the liquid supply device (18), the protector having at least one of a radiation cover (2), a cooling device (21) and an open-close valve (22).