Hinged Air Freshener Frame for Hidden Fragrance Diffusion
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Solution Overview
Problem
Existing air fresheners for vehicles face issues such as interference with vehicle airflow, obstructing driver vision, illegal hanging from rearview mirrors, ineffective fragrance distribution due to placement, and exposure of fragrance oils leading to excessive dissipation or contact with users.
Innovation Solution
An air freshener with a frame having hinged arms and channels that confine fragrance substrates, allowing secure attachment to a support structure like a rearview mirror, while protecting the substrates from contact and controlling fragrance diffusion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the air freshener is placed within louvers of an air vent to use forced airflow for fragrance dispersion, then the fragrance dissipation is improved, but the ventilation system effectiveness is reduced
Solution Approach 1:
The air freshener is extracted from the air vent louver placement and repositioned to hang from the rearview mirror support. This separates the fragrance dispersion function from the ventilation system, allowing the ventilation system to maintain its full effectiveness while the air freshener utilizes ambient airflow independently.
2Reliability
If the air freshener is hung from the rearview mirror to avoid interfering with ventilation, then the ventilation system effectiveness is maintained, but the driver's vision is obstructed
Solution Approach 1:
The air freshener is positioned in the vertical dimension by hanging from the rearview mirror support, placing it above the driver's line of sight in the horizontal plane. This dimensional relocation eliminates the vision obstruction problem while maintaining proximity to the occupants for effective fragrance distribution.
3Object-affected harmful factors
If the air freshener is placed under a seat to avoid obstructing driver vision, then the driver's vision is maintained, but the fragrance diffusion is reduced due to distance and low air circulation
Solution Approach 1:
The air freshener is pre-positioned in a high air circulation zone near the rearview mirror, where ambient heat and airflow naturally converge. This preliminary placement in an optimal location ensures continuous and efficient fragrance diffusion without requiring active intervention or high fragrance loads.
4Productivity
If the fragrance polymer is exposed along a substantial portion of the exterior surface to allow diffusion, then the fragrance dissipation is improved, but the fragrance is exposed to contact by user's hands or materials
Solution Approach 1:
The air freshener structure differentiates between zones: the fragrance polymer is exposed only at the distal end where it contacts the support structure, while the bulk of the fragrance polymer is enclosed within the frame. This local differentiation allows controlled diffusion through the exposed end while protecting the majority of the fragrance from unwanted contact.
5Adaptability or versatility
If the central core is deformed by bending to surround a support structure, then the adaptability to support structures is improved, but the manipulation difficulty increases leading to undesirable contact
Solution Approach 1:
The central core is designed with dynamic flexibility, allowing it to bend and deform elastically during installation to surround various support structure shapes. After installation, the core maintains its deformed configuration, providing both adaptability to different supports and ease of installation through simple elastic deformation.
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 stable, efficient fragrance distribution at a high-heat location, concealing the air freshener from view, and protecting users from fragrance contact, extending the life of the device by managing fragrance release.
Implementation Method 1
A joint pivotally couples the first joint end to the second joint end
Implementation Method 2
Achieving a balance between convection and heat within a vehicle interior for an air refresher has been difficult to achieve. While increasing temperatures and airflow can improve dispersion of fragrance oils
Implementation Method 3
Air convection and heat can help dissipate fragrance oils from an air freshener into an ambient space to provide an aroma
Implementation Method 4
airflow from the ventilation system to help disperse the fragrance
Implementation Method 5
a clasp detachably connects the first clasp end to the second clasp end in a closed configuration
Data Source
AI summary
An air freshener includes a first arm and a second arm connected together at one of their ends by a joint to enable swinging of the arms between an open configuration and a closed configuration. In a closed configuration, a fastener clasps opposite ends of the first arm and the second arm together to surround a central space in which a support structure, such as a support post of a rearview mirror on a vehicle, may be positioned. The first arm and the second arm each include an inner wall and lateral side walls defining an open chamber in which a fragrance substrate is retained by an interference fit. The inner wall defines an interior periphery, and ends of the lateral side walls define an exterior periphery of the air freshener.