E-Cigarette Capsule Buffer Reservoir Prevents Heating Element Drying
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Solution Overview
Problem
Existing electronic cigarette capsules face challenges in maintaining a consistent liquid supply to the heating element, leading to potential drying out and inefficient vaporization.
Innovation Solution
A capsule design featuring a buffer reservoir with a capillary element that maintains constant contact with the heating element, ensuring a continuous liquid flow from a primary storage reservoir, and is supported by spacers to enhance liquid transfer and prevent drying.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a direct liquid transfer system is used from storage reservoir to heating element, then the device complexity is reduced, but the heating element may dry out during use due to inconsistent liquid supply
Solution Approach 1:
The liquid reservoir system is segmented into two distinct parts: a storage reservoir for bulk liquid storage and a buffer reservoir (sump) for maintaining constant liquid contact with the heating element. This segmentation allows the storage reservoir to provide liquid supply while the buffer reservoir ensures consistent liquid availability to the capillary element, preventing drying out without requiring complex active delivery mechanisms.
Solution Approach 2:
The buffer reservoir acts as an intermediary between the storage reservoir and the heating element. It receives liquid from the storage reservoir and maintains a constant liquid level that ensures continuous contact with the capillary element, thereby mediating the liquid transfer process to prevent intermittent supply and heating element drying.
2Quantity of substance
If the heating element is directly contacted with liquid in the storage reservoir, then the liquid transfer efficiency is improved, but the heating element may be exposed to insufficient liquid volume leading to drying
Solution Approach 1:
The buffer reservoir is pre-filled with liquid from the storage reservoir before the heating process begins. This preliminary action ensures that the capillary element is already saturated with liquid and the heating element is ready for immediate vaporization without delay, maintaining productivity while providing sufficient liquid volume.
Solution Approach 2:
The buffer reservoir maintains continuous liquid contact with the capillary element throughout the heating process. This continuity ensures that the heating element consistently receives liquid for vaporization without interruption or drying, maintaining high productivity throughout the capsule's usage life.
3Stability of the object's composition
If a buffer reservoir is added to the system, then the liquid transfer consistency is improved, but the device complexity increases
Solution Approach 1:
The buffer reservoir is designed to automatically maintain liquid level and flow to the capillary element without external control mechanisms. The geometry of the buffer reservoir and its connection to the storage reservoir create a self-regulating system where liquid flows naturally to maintain constant contact with the heating element, achieving stability without adding complex control systems.
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
This design ensures a consistent and efficient vaporization process by maintaining the heating element in constant contact with liquid, preventing drying and improving overall liquid transfer efficiency.
Implementation Method 1
capillary action transports liquid through the porous structure of the wick from the liquid store to the heating element
Implementation Method 2
Vaporization occurs when the heater heats up the liquid in the fluid transfer element until the liquid is transformed into vapor
Implementation Method 3
a heating element housed within the vaporising chamber, the heating element comprising a capillary element configured to vaporise the received liquid
Data Source
AI summary
A capsule for an electronic cigarette has a first end to engage with an electronic cigarette device and a second end as a mouthpiece having a vapour outlet, the capsule further including: a storage reservoir to store a liquid; a vaporising chamber to receive liquid from the storage reservoir; a heating element within the vaporising chamber and including a capillary element configured to vaporise the liquid and generate a vapour; a vapour flow path extending between the vaporising chamber and the mouthpiece to allow the vapour to flow from the vaporising chamber to the mouthpiece; a buffer reservoir in fluid communication with the storage reservoir to allow liquid to flow from the storage reservoir to the buffer reservoir, wherein the buffer reservoir has a fluid capacity that is smaller than that of the storage reservoir; and wherein the capillary element is arranged to contact liquid received in the buffer reservoir.