Air Freshener with Multiple Air Flow Paths for Consistent Delivery
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Solution Overview
Problem
Existing air fresheners suffer from inconsistent fragrance delivery due to evaporation rates influenced by air flow, rapid depletion of fragrance materials, lack of refillability, and dependence on electrical power or bulky aerosol systems, leading to inefficient odor neutralization and safety hazards.
Innovation Solution
An air-treating apparatus with a canister and cup housing volatilizable material, featuring multiple-configured air flow paths for consistent fragrance delivery, using rings with spaced beads that can be stacked for varied scents and safely mounted on surfaces, ensuring fragrance distribution regardless of orientation or airflow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If evaporation-based fragrance delivery is used, then fragrance is delivered to the atmosphere, but the delivery rate is inconsistent due to variable air flow
Solution Approach 1:
The air flow path is segmented into multiple channels that direct air flow through different portions of the fragrance material. This segmentation ensures that variations in overall air flow do not result in proportional variations in fragrance delivery, as different segments compensate for each other, thereby maintaining consistent delivery rates.
Solution Approach 2:
Different regions of the fragrance material are exposed to different air flow characteristics through the multiple air flow paths. This creates local variations in evaporation conditions that collectively produce a consistent overall fragrance delivery rate, as the local differences balance each other out.
2Duration of action of moving object
If a single fragrance material is used, then the device is simple, but the fragrance is quickly depleted and must be replaced
Solution Approach 1:
Multiple fragrance materials are nested within the same device housing, with each material accessible through the multiple air flow paths. This nesting allows the device to maintain a compact form factor while incorporating multiple fragrance sources, extending the overall emission duration without significantly increasing device complexity.
Solution Approach 2:
The device allows for selective replacement of individual fragrance materials while retaining the housing and air flow structure. When one fragrance is depleted, it can be replaced without discarding the entire device, thereby extending the total emission duration and reducing waste.
3Quantity of substance
If aerosol spray dispensing is used, then high concentration fragrance is delivered, but the device is bulky and expensive
Solution Approach 1:
The complex pressurized aerosol dispensing mechanism is extracted and replaced with a simpler passive evaporation system. The multiple air flow paths are designed to naturally draw fragrance materials into the air stream without requiring pumps, valves, or pressurization systems, thereby delivering fragrance effectively while reducing device size and cost.
4Productivity
If electrical heating is used to vaporize fragrance, then fragrance is continuously dispensed, but the device requires constant power supply
Solution Approach 1:
The device uses the natural evaporation properties of the fragrance materials and the ambient air flow to deliver fragrance continuously without requiring external power. The air flow paths are designed to passively draw air through the fragrance materials, allowing the system to self-regulate and operate autonomously without electrical heating or active pumping.
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 apparatus provides consistent and reliable fragrance delivery, independent of airflow orientation, with the ability to replenish materials and prevent ingestion, offering improved safety and efficiency in odor neutralization.
Implementation Method 1
The majority of these delivery systems use a fragrant, volatilizable source which, when exposed to the atmosphere, delivers fragrance via evaporation.
Implementation Method 2
Ficke's law teaches that the delivery rate from evaporation is dependent upon certain factors, including concentration and air flow.
Implementation Method 3
Multiple-configured air flow paths are arranged through the apparatus which enables air-flow therethrough in multiple configurations.
Data Source
AI summary
An air-treating apparatus for dispensing a volatilizable material, such as air freshener fragrance, into the atmosphere of an enclosed area. The apparatus includes a housing and a reservoir of the volatilizable material therein, and also includes a multiple-configured air flow path arrangement which enables air-flow through the apparatus in multiple configurations. The apparatus enables use of the consistent delivery rates of a volatilizable material producing a more consistent delivery rate than normally achieved with such devices.