Ventilation Hood Enclosure with Extendable Walls for Fume Capture
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Solution Overview
Problem
Existing cooking hood systems are inefficient in capturing fumes from fume-producing devices like stoves and grills, as they lack effective enclosures to enhance airflow and fume extraction.
Innovation Solution
A hood assembly with four vertically extending wall assemblies that form an enclosure under the hood, which can be pivotally or slidably attached to improve fume capture efficiency by enclosing the area under the hood and directing fumes into an exhaust opening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a traditional open hood assembly is used, then the device complexity is low and ease of manufacture is high, but the fume capture efficiency is poor
Solution Approach 1:
The enclosure is divided into multiple vertically extending wall assemblies that can be separately manufactured and then assembled together. Each wall assembly can be independently produced and attached to the hood assembly, making the complex structure manageable through modular construction while achieving effective fume enclosure
Solution Approach 2:
The wall assemblies are configured to be attached under the hood assembly in a nested arrangement where the enclosure fits within the spatial envelope of the hood structure. The walls extend downward to enclose the space between the hood and the cooking surface, creating an integrated nested configuration that improves fume capture without requiring separate external structures
2Productivity
If fixed wall assemblies are used, then the fume capture efficiency is improved, but the adaptability to different kitchen layouts is reduced
Solution Approach 1:
The wall assemblies are designed with movable and adjustable characteristics, allowing them to be positioned at different heights and angles to accommodate various kitchen layouts and hood configurations. The dynamic adjustability enables the same enclosure structure to adapt to different spatial requirements while maintaining effective fume capture
Solution Approach 2:
The wall assemblies are designed as universal components that can be applied to different hood types and kitchen configurations. The standardized yet adjustable design allows the same wall assembly components to serve multiple functions across different installation scenarios, enhancing versatility without compromising fume capture efficiency
3Strength
If the enclosure is made rigid and fixed, then the structural strength is high, but the ease of installation and maintenance is reduced
Solution Approach 1:
The enclosure is segmented into separate wall assemblies that can be independently installed and removed. This modular approach allows each component to be attached to the hood assembly in a straightforward manner, simplifying installation and maintenance tasks while maintaining the overall structural integrity through proper connection design
Solution Approach 2:
The wall assemblies incorporate movable attachment mechanisms that allow for easy installation and removal while maintaining structural strength when assembled. The dynamic connection system enables workers to install or maintain components without requiring complex assembly procedures, yet ensures the enclosure remains structurally sound during operation
Data Source
AI summary
Disclosed herein is an enclosure for a hood assembly that can include four vertically extending wall assemblies that form four sides of the enclosure. The wall assemblies are configured to be placed under the hood assembly and they can be vertically extended from under the hood over a fume-producing kitchen device to provide an extended channel for guiding the fumes towards the exhaustion opening of the hood assembly.