Quick Liquid Injection Structure for Aerosol Devices
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Solution Overview
Problem
Conventional aerosol generating devices have complex liquid injection procedures, reduced sealability, and safety risks due to removable sealing covers that can be easily pulled out by children, leading to accidental ingestion.
Innovation Solution
A quick liquid injection structure featuring a valve body, liquid-injection tube, and elastic member with a gas exhaust hole, where the elastic member is compressed to open communication between the gas exhaust hole and an exhaust gap, allowing for direct liquid injection without needing to remove a sealing cover, utilizing sealing members to enhance sealability and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sealing cover is used at the liquid-inlet port to prevent liquid leakage, then sealability is improved, but the liquid injection procedure becomes complicated and the sealing cover can be easily removed by children
Solution Approach 1:
The device is divided into a removable liquid-injection tube and a fixed valve body with sealing cover. The liquid-injection tube can be detached for filling while the sealing cover remains on the valve body, separating the filling operation from the sealing function.
Solution Approach 2:
A sealing member (seal ring) is introduced as an intermediary element between the liquid-injection tube and the valve body. This seal member ensures liquid-tight connection during injection while allowing the tube to be easily attached and detached.
2Reliability
If a sealing cover is used at the liquid-inlet port, then liquid leakage is prevented, but multiple insertions and removals reduce sealability and increase replacement costs
Solution Approach 1:
The sealing function is segmented between the reusable sealing cover on the valve body and the removable sealing member on the liquid-injection tube. The sealing cover remains fixed and undamaged, while the sealing member is replaced only when worn.
Solution Approach 2:
The sealing member is designed as a consumable component that can be replaced independently when worn out, while the expensive sealing cover and valve body are reused. This reduces overall replacement costs.
3Reliability
If a sealing cover is used at the liquid-inlet port, then liquid containment is improved, but children can easily pull it out leading to accidental ingestion
Solution Approach 1:
The liquid containment function is divided between the sealing cover on the valve body and the sealing member on the liquid-injection tube. The sealing cover remains fixed and cannot be removed by children, while the liquid-injection tube with its own sealing member is removable for controlled filling only.
Solution Approach 2:
The sealing member acts as an intermediary sealing element that maintains liquid containment during the removable connection between the liquid-injection tube and valve body, preventing both leakage and unauthorized access.
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
Simplifies the liquid injection process, improves sealability, and reduces safety risks by eliminating the need to remove a sealing cover, preventing accidental liquid ingestion by children, while also reducing replacement costs and enhancing user experience.
Implementation Method 1
the elastic member is compressed, so that the gas exhaust hole is free from closure and in communication with the exhaust gap
Data Source
AI summary
Disclosed are a quick liquid injection structure and an aerosol generating device. The quick liquid injection structure includes a valve body, a liquid-injection tube and an elastic member. A gas exhaust hole is disposed on a side wall of the valve body. The liquid-injection tube is coaxially disposed within the valve body, and the liquid-injection tube comprises a liquid-inlet port, a liquid injection passageway and a liquid-outlet hole which are fluidly communicated. The elastic member is sleeved outside the liquid-injection tube, one end of the elastic member abuts against a first abutment part that extends from an outer wall of the liquid-injection tube, and another end of the elastic member abuts against a second abutment part that extends from an inner wall of the valve body. An exhaust gap is formed between the valve body and an end of the liquid-injection tube close to the liquid-inlet port.