HVAC Scent Disperser Assembly With Airflow-Responsive Control
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Solution Overview
Problem
Existing scent dispenser systems for HVAC systems lack the ability to detect airflow and adjust accordingly, leading to inconsistent fragrance distribution and limited flexibility in placement within the ducting, resulting in suboptimal air quality management.
Innovation Solution
A scent disperser arrangement featuring a flow sensor, such as an anemometer, and a computer-controlled system that can be mounted in various locations within the HVAC system, including external and internal ductwork surfaces, allowing for continuous fragrance distribution and automatic switching between scent dispensers when one runs out or reaches a predetermined spray count.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing scent dispenser systems are used without airflow detection, then the system structure is simple, but fragrance distribution becomes inconsistent and air quality management becomes suboptimal
Solution Approach 1:
The patent implements a feedback mechanism by integrating a flow sensor that continuously monitors airflow conditions and automatically adjusts scent dispenser operation accordingly. The flow sensor detects airflow presence and magnitude, sending signals to the control system which then activates or deactivates the scent dispenser to maintain consistent fragrance distribution regardless of HVAC system state changes.
Solution Approach 2:
The system performs self-service by automatically detecting airflow conditions and adjusting its own operation without external intervention. The flow sensor and control system work together to autonomously determine when scent dispersion is needed, eliminating the need for manual control while ensuring consistent fragrance distribution across varying airflow conditions.
2Adaptability or versatility
If scent dispensers are mounted in fixed locations within ducting, then installation is straightforward, but placement flexibility is limited and optimal air quality management cannot be achieved
Solution Approach 1:
The patent achieves universality by designing a mounting system that can accommodate multiple installation configurations. The scent dispenser assembly incorporates universal mounting brackets and adaptable connection interfaces that allow installation in various locations including external duct surfaces, internal duct surfaces, and different orientations, enabling the system to be deployed flexibly across different HVAC system architectures while maintaining consistent performance.
3Reliability
If airflow detection is added to scent dispenser systems, then fragrance distribution consistency improves, but device complexity increases
Solution Approach 1:
The patent applies merging by integrating the flow sensor, control system, and scent dispenser into a single unified assembly. Rather than treating these as separate components requiring individual installation and coordination, they are combined into one modular unit where the flow sensor housing also serves as the dispenser mounting structure, reducing overall system complexity while maintaining reliable airflow-responsive fragrance distribution.
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
Ensures consistent fragrance distribution throughout the HVAC system by responding to airflow changes and allowing flexible placement, maintaining optimal air quality by continuously dispensing scents even when airflow stops and resumes.
Implementation Method 1
A scent disperser arrangement for dispersing a fragrance into an HVAC system comprises a flow sensor (28), a scent disperser assembly (30) and an electrical connector (32)
Implementation Method 2
a pressurized reservoir containing one or more pressurized liquid scent canisters wherein a pressure differential in the reservoir triggers the flow of liquid from the scent canisters into the reservoir
Data Source
AI summary
Scent dispenser arrangement for dispersing fragrance into a HVAC system includes a flow sensor and a scent disperser assembly having a control module connected to the flow sensor and a canister for emitting a spray which is actuated by the control module. The flow sensor operates in response to air flow and creates an air flow dependent electrical signal transmitted to activate the control module of the spray disperser assembly. The scent disperser and flow sensor are arranged to allow the spray to be disbursed in selective locations in the HVAC system. An embodiment involves two scent disperser assemblies electrically connected in series which operate successively when the liquid in one disperser assembly is depleted or when one disperser assembly dispersers a predetermined number of sprays. A further embodiment involves pressurized containers which communicate with a scented liquid reservoir having a sprayer, wherein a pressure differential in the reservoir triggers the pressurized containers to deliver a liquid flow into the reservoir.