Triple Sealing Structure for Aerosol Generating Device Leakage
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Solution Overview
Problem
Existing aerosol generating devices face leakage risks due to single or double sealing structures, which fail under extreme conditions, compromising their reliability.
Innovation Solution
A triple sealing structure is implemented, comprising a first sealing member between the housing and liquid storage cup, a second sealing member between the liquid storage cup and its interior space, and a third sealing member positioned away from the suction nozzle, enhancing the sealing reliability by using annular and protruding sealing ribs made of silicone or rubber materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single or double sealing structure is used in the liquid storage cup, then the device complexity is reduced, but the reliability of sealing deteriorates due to leakage risks under extreme conditions
Solution Approach 1:
The sealing structure is divided into three independent sealing members positioned at different locations within the liquid storage cup. Each sealing member independently seals a specific region, creating multiple barriers against leakage. This segmentation allows the system to maintain high sealing reliability while keeping each individual sealing component relatively simple in design.
2Reliability
If a triple sealing structure is implemented to prevent leakage, then the reliability is improved, but the device complexity increases due to multiple sealing members
Solution Approach 1:
The three sealing members are nested within the liquid storage cup structure, with each sealing member positioned in a nested arrangement where inner sealings are contained within the overall cup structure. This nesting approach allows multiple sealing layers to coexist in a compact configuration, improving leakage prevention without proportionally increasing the overall device volume or complexity.
3Reliability
If multiple sealing members are positioned at different locations, then the sealing coverage is improved, but the manufacturing precision requirements increase
Solution Approach 1:
Each sealing member is designed with specific local characteristics optimized for its particular position and function within the liquid storage cup. The sealing members have different geometries, materials, and sealing mechanisms tailored to their specific sealing requirements at different locations. This local optimization allows each sealing member to effectively seal its specific region while reducing the overall manufacturing precision requirements compared to a uniform multi-sealing approach.
Data Source
AI summary
Disclosed is an aerosol generating device, which includes a housing and a liquid storage cup mounted in the housing. A suction nozzle is disposed on the housing, a first liquid storage space is formed between the housing and the liquid storage cup, a second liquid storage space is formed in the liquid storage cup, a first sealing member is disposed between the housing and the liquid storage cup and at a side away from the suction nozzle, a second sealing member is disposed at a side of the second liquid storage space away from the suction nozzle, a third sealing member is disposed at a side of the liquid storage cup away from the suction nozzle, and the third sealing member is disposed at a side of the second sealing member away from the suction nozzle.