Integrated Fan-in-Hood Design to Reduce Extractor Installation Space
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing air extractor devices for kitchens require large installation spaces due to separate fan housings, which hinder efficient suction and increase noise levels.
Innovation Solution
The integration of the fan directly into the extractor housing with a cover and support part, where the fan is attached to the support part and the cover, forming a fan wheel space that is laterally delimited by an air baffle, allowing for reduced installation space and simplified structure without hindering airflow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a separate fan housing is used in conventional extractor hoods, then the fan can be securely mounted, but the installation space requirement increases
Solution Approach 1:
The patent merges the fan housing with the extractor hood housing into a single integrated structure. The fan is mounted directly on the hood housing without requiring a separate fan housing, thereby reducing the overall installation space while maintaining secure fan mounting through direct attachment to the hood structure.
2Volume of moving object
If the fan is integrated into the extractor housing, then installation space is reduced, but airflow to the fan may be hindered
Solution Approach 1:
The patent applies local quality by creating a specifically designed fan wheel space within the integrated housing that provides optimal airflow conditions. The housing structure is configured with appropriate clearances and openings in the region where the fan wheel rotates, ensuring that airflow is not hindered despite the integrated design. This localized optimization maintains suction performance while achieving space reduction.
3Strength
If fastening elements are placed inside the fan wheel space, then the cover and support part can be securely attached, but airflow is obstructed
Solution Approach 1:
The patent resolves this contradiction by moving the fastening elements from the two-dimensional plane of the fan wheel space to a different spatial arrangement - specifically, positioning them on the outer periphery of the cover where they do not interfere with the rotational path of the fan wheel. This dimensional repositioning allows secure attachment while maintaining unobstructed airflow through the fan wheel space.
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 configuration minimizes installation space requirements, reduces noise, and ensures reliable air suction while maintaining performance by positioning fastening elements outside the fan wheel space and using a spiral air baffle for efficient airflow direction.
Implementation Method 1
The extractor fan comprises a fan (110) and an extractor housing (113)
Implementation Method 2
a fan wheel space formed between the cover and the support part is laterally bounded at least partially by an air guide wall
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The invention relates to an extractor hood apparatus which has a fan (110) and an extractor hood housing (113). The extractor hood apparatus (11) is characterized in that the extractor hood apparatus (11) has a cover (131) and a carrier part (130), between which the fan (110) of the extractor hood apparatus (11) is received, the fan (110) is fastened to the carrier part (130), the air inlet opening (133) is in the cover (131) and the cover (131) is a part of the extractor hood housing (113).