Ventilation and Illumination System with Air Flow Cavity Design
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Solution Overview
Problem
Conventional ventilation exhaust fans often lack an aesthetically pleasing lighting solution while providing sufficient ventilation and illumination, and they typically use a single light bulb that may not offer enough lumens for improved illumination.
Innovation Solution
A combined ventilation and illumination system that includes a ventilation assembly, a light fixture assembly, and a connector assembly, allowing for the installation of various light fixtures above a ceiling, with a baffle and canopy design that creates an air flow cavity for ventilation while obscuring the connector assembly for a better aesthetic appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a single light bulb is used in conventional ventilation exhaust fans, then the device complexity is reduced, but the illumination intensity is insufficient
Solution Approach 1:
The patent combines the ventilation exhaust fan housing with an integrated light fixture assembly, merging two separate functions (ventilation and illumination) into a single unified device. This allows multiple light sources to be incorporated without proportionally increasing overall device complexity, as the lighting components are integrated into the existing ventilation structure rather than added as separate devices.
2Illumination intensity
If a light fixture is installed in the ventilation assembly, then the illumination intensity is improved, but the device complexity increases
Solution Approach 1:
The ventilation assembly is designed to serve multiple functions simultaneously: it provides ventilation exhaust through the blower assembly while also serving as a mounting structure for the light fixture assembly. This multi-functionality allows the device to deliver both ventilation and illumination capabilities without requiring entirely separate systems, thereby managing complexity while improving illumination.
Solution Approach 2:
The light fixture assembly is nested within or integrated into the ventilation assembly structure. The connector assembly couples the light fixture to the ventilation housing, allowing the lighting components to be positioned within the spatial envelope of the ventilation device. This nesting approach allows multiple functional components to coexist in a compact configuration, improving illumination without linearly increasing overall device complexity.
3Ease of operation
If the connector assembly is made visible, then the ease of installation is improved, but the aesthetic appearance deteriorates
Solution Approach 1:
The connector assembly, which is necessary for installation but aesthetically undesirable when visible, is extracted or concealed behind the canopy. The canopy is positioned to cover the connector assembly from view, effectively removing the unsightly components from the visible portion of the device while maintaining their functional role in connecting the light fixture to the ventilation assembly.
Solution Approach 2:
The canopy provides aesthetic coverage specifically for the connector assembly region, while leaving other functional components accessible or visible where appropriate. This localized aesthetic treatment allows the device to maintain ease of installation through visible connector components during installation, while achieving aesthetic appearance by concealing the same components behind the canopy during normal operation.
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 provides effective ventilation and improved illumination with a flexible platform for different light fixtures, ensuring adequate air flow and aesthetic appeal by defining an air flow cavity between the light fixture and the ceiling, thus addressing the need for both functionality and aesthetics.
Implementation Method 1
a blower assembly residing within the internal region and configured to generate air flow through the inlet opening and into the main housing
Implementation Method 2
an air flow cavity is defined between the light fixture and the ceiling to which the system is installed, where the cavity allows for air flow around the light fixture, through a baffle positioned within a ceiling aperture, and into an internal region of the system for eventual exhaust
Data Source
AI summary
A combined ventilation and illumination system includes a ventilation assembly, a light fixture assembly, and a connector assembly. In an installed position, the system is installed above a ceiling of a room of building structure (e.g., a residence or workplace) to provide ventilation for the room. The system couples a light fixture to ventilation assembly below the ceiling. In the installed position, an air flow cavity is defined between the light fixture and the ceiling, where the cavity allows for air flow around the light fixture and into the ventilation assembly for eventual exhaust beyond the room in which the system is installed. The cavity includes a first critical distance that is sized according to operating parameters of a blower of the ventilation assembly to provide an adequate flow rate of intake air and to provide acceptable sound levels during operation of the system.