Solar-Powered Active Scent Diffuser for Continuous Vehicle Fragrance
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Solution Overview
Problem
Passive scent diffusers in vehicles are limited in functionality when the vehicle is not in operation, as they rely on air circulation to disseminate fragrance, which is not present when the vehicle is stationary.
Innovation Solution
An active scent diffuser with a fragrance reservoir, air circulator, and solar-powered energy system that continuously circulates fragrance composition throughout the vehicle interior, using a centrifugal fan and solar cell to ensure fragrance dissemination regardless of air circulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a passive scent diffuser is used in a vehicle, then the device size is small and it does not obstruct the driver's line of vision, but the fragrance dissemination functionality is limited when the vehicle is not in operation
Solution Approach 1:
The patent transitions from a passive scent diffuser to an active scent diffuser with a powered air circulator that can dynamically operate independently of vehicle air circulation. The device includes a controller that can be activated by various triggers (ignition signal, manual switch, timer) to provide fragrance dissemination even when the vehicle is stationary, making the system adaptive to different operational states
Solution Approach 2:
The active scent diffuser incorporates its own air circulation system with a powered air circulator and fragrance reservoir, enabling it to function autonomously without relying on external vehicle air movement. The device can self-activate through multiple mechanisms including ignition signals, manual switches, or timer-based automatic activation
2Adaptability or versatility
If an active scent diffuser with powered air circulator is used, then fragrance dissemination is effective regardless of vehicle operation, but the device complexity increases
Solution Approach 1:
The patent integrates multiple functions into a single device: the powered air circulator serves both as an air movement mechanism and a fragrance distribution medium; the fragrance reservoir provides both storage and active dispensing functions; the controller handles multiple activation modes (ignition signal, manual switch, timer) and operational control, reducing the need for separate systems
Solution Approach 2:
The patent combines the air circulator, fragrance reservoir, power source, and controller into an integrated active scent diffuser system. The housing contains all components in a unified structure that can be mounted in the vehicle, eliminating the need for separate passive diffuser and air circulation systems
3Duration of action of stationary object
If the active scent diffuser operates continuously to provide consistent fragrance, then the fragrance experience is maintained, but the energy consumption increases
Solution Approach 1:
The controller can operate the air circulator in periodic cycles rather than continuously, activating for set durations and then deactivating. This allows the system to provide fragrance dissemination over extended periods while managing energy consumption through on/off cycling, particularly useful when powered by battery or capacitor
Solution Approach 2:
The system can adjust operational parameters such as air circulator speed, activation duration, and frequency based on available power source characteristics. When powered by solar cell or battery, the controller modifies operation to match available energy, extending operational duration while optimizing energy usage
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 active scent diffuser effectively disseminates fragrance continuously, providing a consistent and autonomous fragrance experience within the vehicle, even when the engine is not running, using a solar-powered system for energy efficiency.
Implementation Method 1
a solar cell positioned within a support face of the air circulator, wherein the support face is configured to secure the scent diffuser relative to a support surface, and wherein the solar cell is configured to convert energy from the light into electrical energy for use by the powered air circulator
Implementation Method 2
a powered air circulator, such as a powered centrifugal fan, configured to circulate at least a portion of the fragrance composition through a surrounding environment
Data Source
AI summary
A scent diffuser (e.g., air freshener) configured to automatically circulate fragrant air throughout a surrounding environment comprises a powered air circulator configured for circulating air and a fragrance composition throughout the surrounding environment, and a solar cell positioned within a support face of the air circulator. The support face is configured to secure the scent diffuser relative to a support surface and has an open portion configured to allow light to contact the solar cell. The air circulator may comprise a centrifugal fan positioned within the housing and configured to draw air through intake apertures in sidewalls of the housing and to exhaust air and fragrance through an outflow aperture of the housing.