Extractor Hood Edge Suction Insert for Easy Grease Cleaning
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Solution Overview
Problem
Extractor hoods with edge extraction for private kitchens face challenges in easily removing unwanted grease residues that settle in the air duct between the intake gap and the grease filter, leading to contamination that is difficult to clean.
Innovation Solution
The design features a slit-shaped intake opening along the outer edge of a central, air-impermeable cover plate connected to an air duct, with an insert part that can be separated for cleaning, allowing the air flow to deflect at least 45 degrees and facilitating easy removal of deposits by being dishwasher-safe and magnetically attachable.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the air duct is designed as a fixed integrated structure, then the structural integrity and simplicity is improved, but the ease of cleaning deteriorates due to grease deposits accumulating on the air gap surfaces
Solution Approach 1:
The air duct is divided into a fixed housing structure and a removable insert component. The insert can be detached from the housing for separate cleaning, allowing the surfaces that come into contact with grease deposits to be easily cleaned without disassembling the entire air duct structure.
Solution Approach 2:
The cleaning function is extracted by providing a removable insert that can be taken out from the air duct. This insert contains the surfaces that accumulate grease deposits, allowing these specific components to be removed and cleaned separately while the main structure remains in place.
2Ease of operation
If the cover plate is made completely removable for cleaning, then the ease of cleaning is improved, but the structural stability and sealing performance deteriorates
Solution Approach 1:
The cover plate assembly is segmented into a fixed housing portion and a removable insert portion. Only the insert that requires cleaning is removed, while the housing remains fixed to maintain the structural integrity and sealing of the air duct system.
Solution Approach 2:
Different parts of the cover plate assembly have different degrees of removability. The insert portion is designed to be removable for cleaning, while the housing portion remains fixed to maintain sealing. This local differentiation of quality allows cleaning access where needed while preserving structural reliability where required.
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 allows for easy cleaning of the air gap surfaces where deposits occur, preventing contamination and maintaining the suction efficiency of the extractor hood.
Implementation Method 1
a suction system for subjecting this grease filter to negative pressure in order to convey gases to be cleaned, in particular air contaminated by cooking fumes, through this grease filter
Implementation Method 2
the boundary surfaces being so shaped that the boundary surfaces opposite the slit-shaped intake opening deflect an air flow entering the slit-shaped intake opening by at least 45 degrees
Implementation Method 3
The insert part preferably has magnetic fastening means which connect the insert part to the rest of the extractor device in a detachable manner
Data Source
Figure 1A~1B
Figure 2A~2B
Figure 2C
AI summary
The mechanism (10) has edge suction having slit-shaped air intake aperture extended along air-impermeable covering plate (13) and connected by air duct. A hood screen (12) centrally includes air-permeable filter (123) and locks flue shaft or chimney (11). The air-impermeable surfaces of hood screen and inner confinement surfaces of covering plate are formed to divert airflow into confinement surfaces opposite to aperture. The deflecting portions of aperture and boundary surfaces of air duct are partially separated from hood screen and covering plate by re-usable insert (124).