Granular Wick Vaporizer Cartridge Fluid Transport
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Solution Overview
Problem
Existing vaporizer cartridges face limitations in fluid transport rate, intermediate storage capacity, and non-return protection due to the use of fibre wicks or one-piece wick blocks, which also pose challenges in manufacturing and mounting.
Innovation Solution
A vaporizer cartridge utilizing a granular wick member formed from multiple granular grains that create microchannels for fluid transport, combined with an additional securing means to maintain the granular wick member in position, ensuring a continuous and uniform fluid flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If fibre wicks or one-piece wick blocks are used, then the vaporizer cartridge can be manufactured and assembled, but the fluid transport rate and intermediate storage capacity are limited
Solution Approach 1:
The patent employs a granular wick member composed of porous granular material with interconnected voids and channels. This porous structure provides significantly increased surface area and capillary action pathways compared to traditional fibre wicks or solid wick blocks, enabling enhanced fluid transport rate while simultaneously providing larger intermediate storage capacity within the same volume.
Solution Approach 2:
The invention changes the physical structure parameter of the wick material from continuous fibre or solid block form to granular particulate form. This parameter change creates a three-dimensional network of capillary channels that improves both fluid transport kinetics and storage capacity by increasing the effective surface area and creating multiple flow pathways.
2Reliability
If fibre wicks or one-piece wick blocks are used, then the vaporizer cartridge can be assembled, but non-return protection is insufficient
Solution Approach 1:
The granular porous wick member inherently provides non-return protection through its capillary structure. The interconnected porous channels allow unidirectional fluid flow from the reservoir toward the heating element while the granular packing creates flow resistance that prevents backflow, eliminating the need for additional mechanical check valves or complex sealing structures.
3Adaptability or versatility
If traditional wick structures are used, then manufacturing is possible, but mounting and adaptation to different geometries is difficult
Solution Approach 1:
The wick member is segmented into discrete granular particles rather than being a continuous fibre mat or solid block. This segmentation allows the granular material to be easily poured or injected into molds of various geometries, adapting to different vaporizer cartridge designs without requiring complex cutting, shaping, or assembly operations.
Solution Approach 2:
By changing the wick material form to granular particles, the invention transforms a rigid mounting problem into a simple filling operation. The granular material can flow into complex geometric configurations and conform to any container shape, dramatically improving adaptability while simplifying manufacturing and mounting processes.
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 granular wick member enhances fluid transport rate, intermediate storage capacity, and non-return protection, while allowing for flexible adaptation to different geometries and enabling automated production and mounting.
Implementation Method 1
liquid can be conveyed at least initially in a capillary manner from the storage tank through the vaporizer unit in the direction of the flow channel
Implementation Method 2
a vaporizer unit extending over the entire access opening is arranged in the region of each access opening, which vaporizer unit has a wick member and a heating member
Data Source
AI summary
A vaporizer cartridge for an inhaler has a hollow body with a continuous flow channel and liquid storage tank. The tank has an access opening to the channel and a vaporizer unit extending over the entire access opening. The vaporizer unit has a wick member and a heating member. The vaporizer unit is liquid-permeable such that liquid is conveyed at least initially in a capillary manner from the storage tank through the vaporizer unit in the direction of the flow channel. The wick member is formed from a plurality of granular grains which, as a result of their fill and/or formation, form microchannels which establish a fluid connection between the storage tank and the flow channel, continuously from an entry side to an exit side of the wick member. An additional securing means is provided which is holds the granular wick member in position. A corresponding inhaler is also provided.