Extractor Hood Filter Unit With Detachable Protective Plate
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Solution Overview
Problem
Existing extractor hood filter units face difficulties in easy removal and cleaning of grease filters, as well as contamination and complex removal processes for baffle plates, which hinder efficient vapor filtration.
Innovation Solution
A filter unit design featuring a detachable protective plate attached to the filter element and filter holder, allowing for easy removal and cleaning while protecting the baffle plate from contamination, and maintaining efficient vapor guidance and filtration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the baffle plate is attached directly to the extractor hood at a defined distance from the grease filter, then the vapor can flow along the edge of the baffle plate and reach the grease filter for effective filtration, but access to the grease filter for removal and cleaning is blocked by the baffle plate
Solution Approach 1:
The filter unit is divided into separate components: the grease filter, the baffle plate, and the protective plate. The protective plate is detachably attached to the filter element, creating a segmented structure that allows the grease filter to be accessed and removed for cleaning while the baffle plate remains in place to maintain vapor filtration efficiency.
Solution Approach 2:
The protective plate is designed to be detachably attached to the filter element, allowing it to be removed when cleaning is needed and reattached when not in use. This dynamic attachment enables easy access to the grease filter for cleaning while maintaining the structural integrity and vapor guidance function when the protective plate is in place.
2Reliability
If the baffle plate is attached directly to the extractor hood, then vapor deflection and turbulence are achieved, but the baffle plate is exposed to contamination and can only be removed using complex processes
Solution Approach 1:
The protective plate serves as an intermediary component between the baffle plate and the contaminated vapor environment. It is positioned to protect the baffle plate from direct exposure to grease and vapor contamination while allowing the baffle plate to remain attached to the extractor hood for continuous vapor deflection and turbulence generation.
3Reliability
If the protective plate is permanently fixed to the extractor hood, then vapor guidance is maintained, but the filter element cannot be easily removed for cleaning
Solution Approach 1:
The protective plate is detachably attached to the filter element rather than being permanently fixed to the extractor hood. This segmentation allows the entire filter element with its protective plate to be easily removed as a unit for cleaning, while the protective plate maintains its position to provide vapor guidance when the filter element is installed.
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
Enables easy access and cleaning of the grease filter, protects the baffle plate from contamination, and ensures efficient vapor filtration without compromising the vapor flow path.
Implementation Method 1
a filter unit (2) for an extractor hood (1), the filter unit (2) having at least one filter element (3), wherein the filter element (3) in turn has at least one filter (30)
Implementation Method 2
The baffle plate is attached directly to the hood of the extractor hood at a defined, sufficiently large distance from the grease filter. With this type of attachment, the vapor can flow along the edge of the baffle plate and reach the grease filter. This achieves the required deflection or the required turbulence of the vapor.
Data Source
Figure 1~2
Figure 3
AI summary
The filter unit (2) has a filter element (3) having a filter (30) and a filter mount. A protective plate (5) made of glass, is detachably fastened to the filter element. The protective plate is detachably fastened to a baffle plate provided at the bottom of the filter mount. The length (A) and width (B) of the protective plate are dimensioned corresponding to the length (a) and width (b) of baffle plate.