Movable Fume Baffle Layout for Low-Profile Vapour Extraction

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Solution Overview

Problem

Existing fume extraction devices require a tall filter unit to provide sufficient filter surface, leading to increased overall height, weight, and complexity in attachment and movement mechanisms, which compromises both functionality and aesthetics.

Innovation Solution

A fume extraction device with a movable fume baffle that can be independently positioned relative to the filter element, allowing the baffle to close the suction opening in a rest position and move perpendicular to it for operation, thereby minimizing the overall height and simplifying the movement mechanism.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a tall filter unit is used to provide sufficient filter surface, then the filter performance is improved, but the overall height of the device increases and the aesthetic appearance deteriorates

Engineering Contradiction:

Improvefilter performanceVSAvoidoverall height

Core Design Contradiction:

ProductivityVSLength of stationary object

Solution Approach 1:

The filter unit is divided into two independent components: the filter element and the vapor baffle. The filter element provides the filtering function while the vapor baffle controls vapor flow. This segmentation allows the filter element to have sufficient filter surface area without requiring increased overall height, as the vapor baffle can be positioned separately to optimize both filtration and aesthetic appearance.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The vapor baffle is made movable in the vertical dimension, allowing it to switch between a rest position (flush with the front surface) and an operating position (extended downward). This dimensional change enables the device to maintain a sleek appearance during normal operation while providing effective vapor extraction when activated, resolving the conflict between height and aesthetic appearance.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Productivity

If a tall filter unit is used to provide sufficient filter surface, then the filter performance is improved, but the weight of the device increases

Engineering Contradiction:

Improvefilter performanceVSAvoiddevice weight

Core Design Contradiction:

ProductivityVSWeight of stationary object

Solution Approach 1:

By separating the filter element from the vapor baffle, the design allows the filter element to maintain sufficient filter surface area for high performance while the vapor baffle becomes a lightweight movable component. This segmentation eliminates the need for a tall, heavy integrated filter unit, thereby reducing overall device weight while preserving filter performance.

Inventive Principle:

Principle #1Segmentation

3Productivity

If a tall filter unit is used to provide sufficient filter surface, then the filter performance is improved, but the complexity of attachment and movement mechanisms increases

Engineering Contradiction:

Improvefilter performanceVSAvoidattachment and movement mechanisms

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The filter element and vapor baffle are designed as separate components with independent mounting mechanisms. The vapor baffle can be attached and moved independently from the filter element, simplifying the overall attachment and movement mechanisms compared to a tall integrated filter unit that would require complex mechanisms to accommodate both filtration and vapor control functions.

Inventive Principle:

Principle #1Segmentation

4Length of stationary object

If the vapor baffle is moved independently from the filter element, then the overall height is reduced, but the device complexity increases

Engineering Contradiction:

Improveoverall heightVSAvoidmovement mechanism

Core Design Contradiction:

Length of stationary objectVSDevice complexity

Solution Approach 1:

The vapor baffle is segmented as a separate movable component with its own simple mounting mechanism, allowing it to be positioned independently from the filter element. This segmentation enables the vapor baffle to achieve a flush position with the front surface, minimizing overall height, while the independent mounting keeps the movement mechanism simple and manageable.

Inventive Principle:

Principle #1Segmentation

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 provides a sufficient filter surface while reducing the overall height of the device, enhancing cleaning efficiency and maintaining a sleek design, while also ensuring effective odor and air containment.

Implementation Method 1

a filter element (2) and at least one fume baffle (3)... on which impurities are removed from the vapors and vapors

Methodology Applied

Scientific EffectFiltration: Filter (physical)

Implementation Method 2

the fume baffle (3) closes a suction area (111) of the suction opening (111)... the fume baffle (3) is mounted in such a way that it can be moved in a direction perpendicular to the surface of the suction opening (111)

Methodology Applied

Scientific EffectPhysical containment and flow control: Physical Containment

Data Source

PatentEP2112437B1Vapour extraction device with vapour guide plate

Publication Date: 2015.12.16 BSH HAUSGERATE GMBH

Figure 1~2
Figure 3~4a
Figure 4b~4c

AI summary

The invention relates to a fume extraction device which comprises a suction opening (111), a filter element (2) and at least one fume baffle (3). The fume extraction device (1) is characterized in that the fume deflector (3) is attached in such a way that it can be moved relative to the filter element (2) and the fume deflector (3) closes a suction area of the suction opening (111) in a rest position.