Atomizer Flow Division for Stable Particle Size Control
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Solution Overview
Problem
Existing nebulizers have complex structures, high production costs, and poor stability of nebulized particles, making it difficult to meet user needs.
Innovation Solution
A nebulizer design featuring a nebulization assembly, automatic feeding assembly, power assembly, flow divider assembly, and adjusting member to regulate airflow and particle size, with components like a medicine cup, impact baffle, and flexible sealing mechanisms to ensure stable nebulization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If adjustable pressure or flow structures are added to nebulizers to control deposition site, then adaptability is improved, but device complexity increases
Solution Approach 1:
The patent uses a flow divider assembly with an adjusting member that changes the flow distribution ratio parameter to control the proportion of compressed air reaching the nebulization assembly. By adjusting this parameter, the particle size and deposition site are controlled without adding complex mechanical structures.
Solution Approach 2:
The patent employs a flow divider assembly that uses pneumatic principles to divide and redirect compressed air flow. The adjusting member modifies the pneumatic flow path to control the amount of air reaching the nebulization assembly, achieving adaptability through fluid dynamics rather than mechanical complexity.
2Adaptability or versatility
If adjustable pressure or flow structures are added to nebulizers to control deposition site, then adaptability is improved, but production cost increases
Solution Approach 1:
The flow divider assembly with adjusting member provides a cost-effective solution by using simple parameter adjustment rather than complex adjustable mechanisms. This approach reduces manufacturing costs while maintaining the ability to control deposition site through flow ratio modification.
Solution Approach 2:
The pneumatic flow division mechanism replaces complex mechanical adjustment systems with simpler fluid-based control, reducing production costs while achieving the same adaptability in controlling drug deposition patterns.
3Adaptability or versatility
If adjustable pressure or flow structures are added to nebulizers to control deposition site, then adaptability is improved, but stability of nebulized particles deteriorates
Solution Approach 1:
The flow divider assembly acts as an intermediary between the power assembly and nebulization assembly, stabilizing the airflow before it reaches the nebulization chamber. This intermediary component ensures stable particle generation while still allowing adjustment of flow proportions for different deposition requirements.
Solution Approach 2:
The adjusting member provides controlled parameter changes in the flow distribution ratio, allowing stable operation at each setting while enabling transition between different deposition patterns. This controlled adjustment maintains particle stability unlike uncontrolled variable structures.
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
Enables flexible control of air pressure and airflow for tailored particle sizes, ensuring stable atomization and low production costs.
Implementation Method 1
Both can atomize liquid medicine through the Venturi injection principle, turning the liquid medicine into extremely fine nebulized particles for inhalation by human
Implementation Method 2
a power assembly configured to deliver compressed air to the nebulization assembly that nebulizes the liquid medicine using the compressed air delivered by the power assembly
Data Source
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AI summary
Disclosed is a nebulizer, comprising: an nebulization assembly; an automatic feeding assembly connected to the nebulization assembly for automatically adding liquid medicine into the nebulization assembly; a power assembly configured to deliver compressed air to the nebulization assembly that nebulizes the liquid medicine using the delivered compressed air; a flow divider assembly disposed between the power assembly and the nebulization assembly for diverting a part of the delivered airflow; and an adjusting member configured to adjust a proportion of the diverted airflow so as to regulate sizes of nebulized particles produced by the nebulization assembly. Since the adjusting member is capable of adjusting the flow distribution ratio of the flow divider assembly, it can produce a medicinal mist tailored to specific particle size characteristics to cater to the medication needs of different users, resulting in a simple product structure and low production costs.