Grease Filter Liquid Collector to Prevent Drip Soiling

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Solution Overview

Problem

Existing vapor extraction devices suffer from grease and liquids dripping off the filter and soiling components below the suction opening, making them difficult to clean and access.

Innovation Solution

A filter device with a grease filter and a collecting container where the width of the container is greater than the thickness of the grease filter, allowing for reliable liquid collection and featuring a V-shaped or foldable design with deflector elements to enhance liquid collection and prevent air flow from carrying liquids.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If a grease filter with frame is used in conventional vapor extraction devices, then grease and liquids are filtered from the air, but the deposited grease and liquids drip off the filter and soil components below the suction opening

Engineering Contradiction:

Improvesoiling of components below suction openingVSAvoidaccessibility and cleaning of components

Core Design Contradiction:

Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The harmful effect of dripping grease is eliminated by extracting the liquid collection function from the filter structure and placing it in a separate collecting container positioned below the grease filter, where it cannot soil other components

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

A collecting container is introduced as an intermediary element between the grease filter and the components below, intercepting dripping grease and liquids before they can reach and soil the fan housing and other components

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If the width of the collecting container interior is made greater than the thickness of the grease filter, then liquid collection is improved, but the device complexity increases

Engineering Contradiction:

Improveliquid collection efficiencyVSAvoidfilter device structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The collecting container extends in the depth dimension (front-to-back direction) rather than increasing width or height, allowing adequate liquid collection capacity while maintaining a compact overall structure that does not significantly increase device complexity

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

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

Ensures reliable deposition of dirt and simplifies cleaning by effectively collecting liquids from the grease filter, preventing them from soiling other components and allowing for easy removal and cleaning of the filter device.

Implementation Method 1

The filter device has a grease filter and a collecting container for collecting liquid with an opening for receiving at least part of an edge of the grease filter

Methodology Applied

Scientific EffectFiltration: Filter (physical)

Implementation Method 2

The container serves to collect liquids, which are deposited on the grease filter, in particular on the filter material, and run down in or on the grease filter

Methodology Applied

Scientific EffectGravity: Gravitation

Data Source

PatentUS12111059B2Filter device for a vapour extraction device, and vapour extraction device with a filter device

Publication Date: 2024.10.08 BSH HAUSGERATE GMBH

AI summary

A filter device for a vapor extraction device includes a grease filter, and a collecting container for collecting liquid. The collecting container includes an opening configured to receive at least part of an edge of the grease filter. The collecting container has an interior defined by a width which is greater than a thickness of the grease filter in a region in which the grease filter is located in the interior of the collecting container.