Absorbent E-Cigarette Component Layout for Leakage Containment
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Solution Overview
Problem
Electronic vapor provision devices, such as e-cigarettes, face issues with source liquid leakage due to construction vulnerabilities, leading to unvaporized liquid escaping and potentially causing short circuits or corrosion, especially around joints and where the wicking element penetrates the reservoir wall.
Innovation Solution
Incorporating an absorbent element with a planar shape on the outer surface of a component, positioned upstream of the atomiser in the air flow path, to collect and absorb any escaped source liquid, thereby preventing it from reaching the electrical power supply and reducing leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the reservoir is constructed with multiple sections and joints to enable refilling and assembly, then the device is more versatile and easier to manufacture, but the number of leakage points increases and reliability deteriorates
Solution Approach 1:
The patent introduces an absorbent element as an intermediary component positioned between the reservoir and the atomiser. This element acts as a safety barrier that absorbs any liquid that escapes through the reservoir joints or wicking element, preventing it from reaching the electrical power supply. The absorbent element does not prevent leakage itself but mediates the harmful effects of leakage, allowing the multi-section reservoir design to maintain both versatility and reliability.
2Productivity
If the wicking element penetrates the reservoir wall to deliver liquid to the heating element, then the vaporisation function is improved, but new leakage points are created where the wicking element penetrates
Solution Approach 1:
The absorbent element serves as a mediator positioned downstream of the wicking element penetration point. It captures any liquid that escapes through the penetration point or overflows from the atomiser, converting the harmful leakage into absorbed liquid that cannot reach the electrical components. This allows the wicking element to efficiently deliver liquid to the heating element without compromising reliability.
3Duration of action of stationary object
If the reservoir holds more source liquid to extend usage duration, then the device lasts longer, but the risk and amount of potential leakage increases
Solution Approach 1:
The absorbent element provides beforehand cushioning against the harmful effects of leakage. By positioning the absorbent element in advance within the device structure, it creates a protective buffer zone that will absorb any leaked liquid before it can reach and damage the electrical power supply. This cushioning measure allows the reservoir to be filled to greater capacities without proportionally increasing the risk of damage.
4Reliability
If seals and joints are made tighter to prevent leakage, then reliability is improved, but manufacturing complexity and difficulty increase
Solution Approach 1:
Rather than making the reservoir joints and seals perfectly leak-proof (which would increase manufacturing difficulty), the patent introduces an absorbent element as a forgiving intermediary. This element compensates for imperfect seals and joints by absorbing any liquid that escapes, allowing the device to be manufactured with standard sealing techniques while still achieving high reliability.
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
Effectively inhibits escaped liquid from leaving the device or reaching the electrical components, enhancing safety and preventing damage by absorbing stray liquid before it can cause issues, while maintaining airflow and vaporization functionality.
Implementation Method 1
an absorbent element to collect source liquid escaped from the reservoir
Implementation Method 2
an atomiser for vaporising source liquid from the reservoir and delivering vapour into an air flow path
Implementation Method 3
a heating element coupled to a portion of the source liquid from the reservoir
Data Source
Figure 1~3
Figure 4~6B
Figure 7A~9
AI summary
A component (20;30) of an electronic vapour provision device (10) with a reservoir (3) for storing source liquid, an atomiser (40) for vaporising source liquid from the reservoir and delivering vapour into an air flow path (37) through the device, and an electrical power supply (5) for providing electrical power to the atomiser comprises an absorbent element (50) to collect source liquid escaped from the reservoir and located so as to be upstream of the atomiser with respect to an air flow direction along the air flow path when the component is assembled into the electronic vapour provision device.