Vapour extraction device with cover for a housing aperture of the housing of the vapour extraction device
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Solution Overview
Problem
Conventional extractor hoods face challenges with a complex structure, large space requirements, and contamination issues due to open edge gaps when not in use, which compromise both aesthetics and operational safety.
Innovation Solution
The use of a force transmission element, specifically a Bowden cable system, allows the cover to be moved from a rest position to an operating position, minimizing space and ensuring reliable fume extraction while maintaining a clean and safe operation by applying forces from a distance, thereby closing the housing opening and preventing contaminants from entering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a baffle plate cover is used to improve visual appearance, then the aesthetic quality is improved, but contaminants can still enter through the edge gap when not in use
Solution Approach 1:
The baffle plate is designed to be movable between a retracted position (during operation) and a covering position (when not in use). This dynamic configuration allows the same component to serve both aesthetic purposes and protective functions, eliminating the edge gap when closed while maintaining extraction efficiency when open.
2Productivity
If the edge gap is kept open for extraction, then fume extraction efficiency is improved, but odors can escape and contaminants can enter when not in use
Solution Approach 1:
The baffle plate transitions between open and closed states based on operational requirements. During cooking, the plate is retracted to maximize the edge gap for efficient vapor extraction. When not in use, the plate closes to seal the housing opening, preventing odor escape and contaminant entry, thus addressing both extraction efficiency and harmful factor prevention.
3Reliability
If a complex structure with telescopic rods and motors is used to close the hood, then the housing opening can be closed, but the device complexity and space requirement increase
Solution Approach 1:
The invention extracts and eliminates the complex telescopic rod and motor mechanisms from the system. Instead, a simple movable baffle plate is used that can be actuated by basic means (manual, spring-assisted, or simple motor), significantly reducing structural complexity and space requirements while maintaining the essential function of closing the housing opening.
Solution Approach 2:
Rather than closing the entire hood structure with complex mechanisms, the solution focuses locally on a simple baffle plate that covers only the housing opening. This localized approach achieves the closure function with minimal complexity and space, avoiding the need for comprehensive structural modifications.
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
This solution provides an improved visual appearance with a simplified structure, ensures reliable fume extraction, and minimizes space requirements while preventing contamination and odor escape, ensuring safe and efficient operation of the extractor device.
Implementation Method 1
a force transmission element which allows the cover to be influenced from a distance
Data Source
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AI summary
The present invention relates to an extractor device with an extractor housing (10), a housing opening (100) provided in the extractor housing (10) and at least one cover (17, 12, 15) for at least part of the housing opening (100). The extractor device (1) is characterized in that the cover (17, 12, 15) is movably mounted on the extractor housing (10) and the extractor device (1) comprises an actuating device (2) which has at least one Bowden cable (21), which is arranged in such a way that at least one end of the Bowden cable (21) is connected to the side of the cover (17, 12, 15) which faces the interior of the extractor housing (10).