Atomizer Refill Tube Sealing With Exhaust Gap to Prevent Leakage
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Solution Overview
Problem
Electronic cigarettes pose a risk of accidental ingestion of smoke oil by children and leakage due to air pressure during refilling, as the cigarette holder can be easily opened and air pressure can cause overflow.
Innovation Solution
An atomization device with a liquid storage cavity, an injection structure featuring an injection tube and sealing member, and an exhaust gap between the injection tube and the liquid injection opening, which balances air pressure and prevents overflow by allowing air to escape, and a reset mechanism to ensure the sealing member seals properly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the cigarette holder is made openable for refilling, then the ease of operation is improved, but the safety is worsened due to children accessing smoke oil
Solution Approach 1:
The device is divided into a replaceable cartridge containing smoke oil and a separate holder. The cartridge can be easily detached and replaced, eliminating the need to open the holder for refilling. This segmentation maintains ease of operation while preventing child access to smoke oil.
Solution Approach 2:
The smoke oil storage function is extracted from the holder and placed in a separate, disposable cartridge. This extraction allows the holder to remain closed and secure, while refilling is achieved by simply replacing the entire cartridge, thus solving both safety and ease of operation requirements.
2Productivity
If air pressure is increased during injection, then the productivity is improved, but the reliability is worsened due to smoke oil leakage
Solution Approach 1:
An exhaust passage is pre-established in the sealing structure before injection begins. This preliminary action provides a predetermined escape route for air, preventing pressure buildup that would cause leakage during high-speed injection, thus maintaining both productivity and reliability.
Solution Approach 2:
The exhaust passage acts as an intermediary channel between the injection system and the external environment. It mediates the pressure balance by allowing controlled air escape, enabling high-pressure injection without causing smoke oil leakage through the sealing interface.
3Reliability
If the sealing member is made tight to prevent leakage, then the reliability is improved, but the air pressure balance is worsened during injection
Solution Approach 1:
The sealing system is segmented into a primary sealing member for preventing leakage and a separate exhaust passage for pressure relief. This segmentation allows the sealing member to maintain tight sealing for reliability while the exhaust passage manages air pressure balance during injection.
Solution Approach 2:
The exhaust passage serves as an intermediary pressure relief mechanism that works in conjunction with the tight sealing member. It provides a controlled path for air escape without compromising the sealing performance, thus resolving the contradiction between sealing tightness and pressure balance.
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 smoke oil leakage and accidental ingestion by ensuring the smoke oil is injected safely and securely, maintaining air pressure balance within the device, thus enhancing safety and usability.
Implementation Method 1
the air in the liquid storage cavity can run out from the electronic cigarette through the exhaust gap, thus, it can balance the air pressure inside and outside the liquid storage cavity
Implementation Method 2
the sealing member is sealed from an inner wall of the liquid storage cavity, and separates the liquid inlet from the liquid storage cavity
Implementation Method 3
the liquid inlet moves into the liquid injection opening to communicate with the liquid storage cavity
Data Source
AI summary
The present disclosure provides an atomization device including a liquid storage cavity, a liquid injection opening, and an injection structure; the injection structure includes an injection tube and a sealing member; the injection tube runs through the liquid injection opening and extends into the liquid storage cavity, and a liquid inlet is formed in a side wall of the injection tube; the sealing member is arranged on one end of the injection tube in the liquid storage cavity; the sealing member is sealed from an inner wall of the liquid storage cavity, and separates the liquid inlet from the liquid storage cavity. When the injection tube is pushed into the liquid storage cavity, the liquid inlet moves into the liquid injection opening to communicate with the liquid storage cavity. When the injection tube is not pushed, the injection tube separates the liquid inlet from the liquid storage cavity.


