Coordinated Hood and Wall Fan Ventilation to Reduce Installation Cost
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing ventilation systems for rooms, such as extractor hoods and wall fans, require costly masonry works for installation and necessitate users to operate multiple devices separately, which is inefficient and user-unfriendly.
Innovation Solution
A ventilation system integrating a filter hood and a wall fan with control means and transducers to detect gas parameters, allowing for coordinated operation between the two units to optimize filtration and extraction, reducing the need for costly installations and simplifying user control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If extractor hoods are used to exhaust gases from the room, then gas treatment efficiency is improved, but costly masonry works are required for duct installation
Solution Approach 1:
The patent combines a filter hood and wall fan into a single integrated ventilation system. The control unit coordinates both devices to work together, merging the filtration function of the hood with the extraction function of the wall fan, thereby achieving effective gas treatment without requiring costly duct installation through walls.
Solution Approach 2:
The integrated system performs multiple functions: the filter hood filters and recirculates air, the wall fan extracts gases through windows or openings, and the control unit manages both operations. This multi-functional approach replaces the need for traditional extractor hoods requiring wall ducts.
2Ease of manufacture
If filter hoods are used instead of extractor hoods to avoid masonry works, then installation cost is reduced, but gas treatment efficiency deteriorates
Solution Approach 1:
The system merges a filter hood that recirculates filtered air with a wall fan that extracts gases through windows or openings. This combination allows the system to achieve effective gas removal comparable to extractor hoods while avoiding the need for costly wall duct installation.
Solution Approach 2:
The control unit acts as an intermediary that coordinates the operation of the filter hood and wall fan. It receives signals from transducers detecting gas parameters and automatically adjusts the operation of both devices to optimize gas treatment efficiency.
3Adaptability or versatility
If multiple stand-alone devices (hood and wall fan) are used, then gas treatment flexibility is improved, but device complexity and ease of operation worsen
Solution Approach 1:
The patent merges the control functions of multiple devices into a single integrated system. The control unit receives signals from transducers and automatically coordinates the operation of the filter hood and wall fan, providing flexible gas treatment while simplifying user interaction to a single control interface.
4Adaptability or versatility
If multiple stand-alone devices (hood and wall fan) are used, then gas treatment flexibility is improved, but ease of operation deteriorates
Solution Approach 1:
The system performs self-service through automatic control. Transducers continuously monitor gas parameters and send signals to the control unit, which automatically adjusts the operation of the filter hood and wall fan without requiring user intervention. This maintains treatment flexibility while greatly simplifying operation.
Solution Approach 2:
The system incorporates feedback loops where transducers detect gas parameters (such as smoke, odor, or temperature) and continuously provide information to the control unit. The control unit automatically adjusts the ventilation devices based on this feedback, ensuring optimal performance while requiring minimal user input.
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 system efficiently filters and extracts gases with reduced installation costs and simplified user operation, enhancing air quality and comfort by automatically adjusting the operation of the filter hood and wall fan based on detected gas parameters.
Implementation Method 1
filtering them and reintroducing them into the room, once they have been filtered
Implementation Method 2
an electric motor that drives an impeller such that air is exhausted out of the room through a duct that extends through the thickness of the wall or the thickness of a window pane
Implementation Method 3
a plurality of transducers (5), which are configured to detect a respective plurality of characteristic parameters of gases in said room (2)
Data Source
Figure 1
Figure 2
AI summary
The present invention relates to a ventilation system for a room (2) which comprises a hood for domestic use (3) located in said room, a wall fan (4) located in said room, a plurality of transducers (5) configured to detect a respective plurality of characteristic parameters of the gases in said room; processing and control means (6) in signal communication with said plurality of transducers (5) and in signal communication (SI) with said first control means (3 A), processing and control means (6) electrically connected with said plurality of transducers (5) and in signal communication (SI) with said first control means (3 A), said processing and control means (6) comprising firmware configured to process said detected characteristic parameters and to transmit a first control signal (SI) to control said hood for domestic use (3). The characterizing feature is that said hood for domestic use (3) is in signal communication with said wall fan (4) via a first transmitter module (3B), located in said hood (3), and configured to transmit a second signal (S2), said wall fan (4) comprising a first receiver module (4C) configured to receive said second signal (S2); said second radio frequency signal (S2) being generated by said hood (3) according to said first signal (SI) to instruct said second control means (4 A) to turn on said wall fan (4) and keep it in this state for a first predetermined ON-time (Tl) when one or more of said characteristic parameters detected by said plurality of sensors (5) exceed respective predetermined threshold values.