Removable Diffuser Cartridge Insert With Tortuous Leak-Safe Flow Path
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Solution Overview
Problem
Conventional liquid diffusion devices face challenges in efficiently refilling and recharging scents or products, often resulting in messy bulk refills, complexity, cost, leakage, tampering, and contamination issues with removable cartridges.
Innovation Solution
A removable cartridge with a multi-functional insert featuring a tortuous passage that reduces liquid particle size, includes a venturi device for atomization, and a convoluted flow path to prevent leakage and ensure efficient diffusion, allowing for easy replacement and tamper-proof design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional refilling methods are used, then the reservoir can be refilled with new liquid, but the process becomes messy and generates concentrated odor
Solution Approach 1:
The diffusion device is divided into a reusable host device and a replaceable cartridge containing the liquid reservoir. This segmentation allows the cartridge to be pre-filled in a controlled environment and simply swapped out, eliminating messy refilling operations from the user environment.
Solution Approach 2:
The refilling operation is extracted from the user environment by using pre-filled cartridges that are manufactured and sealed elsewhere. The user only performs the simple action of replacing the entire cartridge rather than performing messy refilling operations.
2Ease of operation
If removable cartridges are used, then refilling becomes easier, but the cartridges become susceptible to leakage, tampering, and contamination
Solution Approach 1:
The cartridge is nested within the host device with precise engagement features. The cartridge includes an outer housing with sealing surfaces that interface with the host device, creating a protected, integrated assembly that prevents leakage and tampering while maintaining easy replaceability.
Solution Approach 2:
The cartridge is pre-assembled with the reservoir, diffusion mechanism, and sealing features in a controlled manufacturing environment before reaching the user. This preliminary assembly ensures proper sealing and prevents contamination that would occur during user-level refilling operations.
3Ease of manufacture
If the cartridge design is simplified, then manufacturing cost decreases, but the ability to prevent leakage and contamination is reduced
Solution Approach 1:
The cartridge is divided into modular components (outer housing, reservoir, diffusion insert, sealing elements) that can be manufactured separately using optimized processes for each component, then assembled with standardized interfaces that ensure reliability without requiring complex integrated manufacturing.
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 provides efficient, mess-free refilling and effective diffusion of extremely small liquid particles, preventing leakage and contamination while maintaining the integrity of the diffused liquid, making it suitable for commercial and home use.
Implementation Method 1
a venturi device for generating a diffused liquid from the liquid contained in the internal housing cavity
Implementation Method 2
a tortuous passage extending between the inlet and the outlet zone to aid in further reducing an average particle size of the diffused liquid as the diffused liquid moves through the tortuous passage
Data Source
AI summary
An insert of a cartridge for use with a liquid diffusing device is provided. The insert includes a body, an inlet provided in the body to receive diffused liquid generated within the cartridge during operation of the liquid diffusing device, an outlet zone defined at least in part by the body through which to discharge the diffused liquid toward an external environment, and a tortuous passage extending between the inlet and the outlet zone to aid in further reducing an average particle size of the diffused liquid as the diffused liquid moves through the tortuous passage. Removable cartridges for use with a diffusion device are also provided which include such an insert.