Diffusion Device With Segmented Air Circuit
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Solution Overview
Problem
Existing diffusion devices for volatile compounds, such as fragrances, suffer from non-uniform air distribution and limited diffusion area, leading to uneven fragrance propagation and unpleasant concentration hotspots.
Innovation Solution
A device with a housing featuring a circulation circuit, ventilation means, and multiple fluidically independent diffusion chambers, where the cross-section of the chambers increases downstream, allowing for uniform air distribution and improved fragrance diffusion over a wide area, with optional substrate movement paths for easy maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If air outlet orifices are arranged in lateral walls at distances from the ventilation means, then the diffusion device can cover a larger area, but the air pressure decreases and air distribution becomes non-uniform
Solution Approach 1:
The air circuit is divided into multiple independent chambers (first chamber, second chamber, third chamber), each with its own air outlet orifice. This segmentation allows each outlet to operate independently, maintaining air pressure and ensuring uniform air distribution across all outlets regardless of their distance from the ventilation means.
Solution Approach 2:
Each chamber is designed with specific local characteristics - the cross-section increases from upstream to downstream in each chamber, and each chamber has its own dedicated air outlet. This local optimization ensures that air pressure and flow distribution are optimized for each outlet's specific position and requirements.
2Device complexity
If a single air circulation circuit is used, then the device structure remains simple, but the fragrance diffusion is limited to a narrow area and concentration hotspots occur
Solution Approach 1:
The single air circuit is segmented into multiple independent chambers, each capable of diffusing fragrance through its own outlet. This creates multiple diffusion pathways that spread fragrance over a wider area while maintaining relatively simple individual chamber structures.
Solution Approach 2:
The air outlets are arranged in different spatial dimensions and directions - first and second outlets project air in opposite directions along one axis, while the third outlet projects air perpendicular to that axis. This multi-dimensional arrangement expands the fragrance diffusion area significantly.
3Quantity of substance
If the chamber cross-section increases from upstream to downstream, then fragrance accumulation and diffusion are improved, but the device volume increases
Solution Approach 1:
The cross-section increase is applied locally within each chamber from upstream to downstream, rather than uniformly throughout the entire device. This localized geometric progression optimizes fragrance accumulation in each chamber while minimizing the overall volume increase.
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 ensures uniform fragrance distribution across a larger area, preventing concentration hotspots and enhancing the propagation of fragrant volatile compounds, while allowing for easy substrate replacement and maintenance.
Implementation Method 1
a ventilation means arranged in the air circuit of the housing and able to circulate an air flow from the air inlet to the air outlet
Implementation Method 2
a receiving area arranged in the air circuit downstream of the ventilation means and intended to receive a substrate holding a volatile substance, preferably fragrant
Data Source
AI summary
A device for diffusing a volatile substance, comprising a housing defining internally an air circuit for the circulation of air between at least one air inlet and at least one air outlet, a ventilation means arranged in the circuit and able to circulate an air flow from the air inlet to the air outlet, and a receiving area arranged in the air circuit downstream of the ventilation means and intended to receive a substrate holding a volatile substance. The air circuit comprises at least one chamber arranged downstream of said receiving area and upstream of an air outlet of the housing.