WO2009062809A2

WO2009062809A2 - Extractor device

Info

Publication number: WO2009062809A2
Application number: PCT/EP2008/064089
Authority: WO
Inventors: Holger Eich; Stefan Knoth; Volkmar Uebele
Original assignee: BSH Bosch und Siemens Hausgeräte GmbH
Priority date: 2007-11-12
Filing date: 2008-10-20
Publication date: 2009-05-22
Also published as: ES2621515T3; EP2210048A2; EP2210048B1; WO2009062809A3; PL2210048T3; DE102007053819A1

Abstract

Extractor device (100; 100') for installation in the vicinity of at least one fume source in a room, comprising: at least one hood (10) for extracting odours, at least one exhaust element (20) for removing the extracted fumes, wherein the exhaust element (20) is connected to the hood (10) by means of at least one suction opening and at least one filter (30) arranged at a distance from the hood (10) for filtering the extracted fumes. According to the invetion, said device may be improved over the state of the art by increasing the filter area, for example, the active charcoal effective area and/or the throughflow area for fumes or air without hindering airflow in the exhaust element (20), wherein the filter (30) is designed to blow the filtered fumes as filtered air into the room via at least one outlet area (32, 34, 36, 38) of the filter (30) and at least one dimension of the filter (30) is independent of the dimensions of the exhaust element (20) and the dimensions of the hood (10).

Description

Description of the invention:

Exhaust hood

Technical area

The present invention relates to a fume extraction device with a fume hood according to the preamble of claim 1 (= DE 35 29 640 A1).

State of the art

Vapor extraction devices are usually designed for filtering steam or haze, for example cooking hobs, in the exhaust air mode and / or in the circulating air mode.

In the exhaust air operation, the cooking fume is sucked at the point of origin of a fan and directed via an exhaust duct and / or a wall box either directly into the open or in an air chimney.

In recirculation mode, on the other hand, the cooking vapor is circulated for filtering within a room. The recirculation mode is very energy efficient, especially at low outside temperatures, because in recirculation

Circulation, the room air is maintained during the entire ventilation process.

A disadvantage of the recirculation mode, however, is the lower ventilation performance compared to the exhaust air mode. One reason for this lower air flow is that the size of the odor filter, such as one

Activated carbon filter, known from the prior art Extractor hoods is limited by the dimensions of the viewing hood and / or the trigger element.

Thus, according to the prior art, the filter - in the region of the viewing hood, ie in the area below the fan of the

Extractor hood, (see, for example, DE 20 2005 002 589 U1,

DE 10 2004 049 978 A1, DE 10 2004 049 979 A1) or - in the extraction element or in the exhaust pipe in the area above the

For example, DE 35 29 640 A1, DE 10 2005 004 692 A1, DE 20 2005 004 307 111, GB 2 334 779 A, EP 1 055 883 B1,

EP 0 596 846 B1, US 2005/0224069 A1, US 4,939,986). Due to the design, the flow-through filter surface and activated carbon amount is thus limited to the space below the fan or to the interior of the extraction element or exhaust pipe. Even with very long exhaust pipes, the filter surface can not pass through

Increasing the filter length can be increased, because with increasing filter length filter change difficult and increases the air resistance in the trigger element.

In the extractor devices according to the prior art, therefore, the withdrawn vapor is filtered in the viewing hood or in the exhaust pipe and then passed through an exhaust port of the trigger element in the room. Thus, for example, the document DE 35 29 640 A1, from which a fume extraction device according to the preamble of claim 1 is known, the filter in the hood facing away from the end of a

Insert exhaust pipe. The filter change takes place in this case on the discharge opening formed by the exhaust pipe, in front of which the filter is arranged. Since, therefore, according to the prior art, the filter is inserted into the extractor hood, both the size of the filter and the size of the exit surface of the filter are limited by the dimensions of the extractor hood, namely the viewing hood or the trigger element. In addition, the arrangement of the filter hinder within the trigger element the directed away from the hood airflow.

Thus, from the document EP 1 055 883 B1 an extractor hood with a switching device for switching between exhaust air operation and

Recirculation mode known. To the air flow in the trigger element at

Not to obstruct exhaust air operation is the odor filter of this

Vapor extraction device arranged hinged in the trigger element and is moved for the exhaust air operation in the air flow path of the trigger element and for the recirculation mode of the air flow path of the trigger element. As with the ones described above

Vapor extraction devices of the prior art, in which the

Filter is disposed within the extraction element, but also in the case of the extractor device described in the document EP 1 055 883 B1, the dimension of the filter through the

Inner diameter of the trigger element limited.

DESCRIPTION OF THE INVENTION: Problem, Solution, Advantages

Based on the disadvantages set out above and

Inadequacies and in appreciation of the outlined prior art, the present invention has the object, a vapor extraction device of the type mentioned in such a way that to improve the odor reduction in the exhaust air operation in

Compared to the prior art, the filter surface, for example, the activated carbon exit surface and / or the passage area for vapor or air, increases, and at the same time the air flow in the withdrawal element is not hindered. In addition, filter noise should be avoided as much as possible.

This object is achieved by a fume extraction device having the features specified in claim 1. Advantageous embodiments and expedient developments of the present invention are characterized in the respective subclaims.

The present invention is based on that at least one dimension or dimension of the filter regardless of the dimensions or dimensions

Dimensions of the trigger element is selected. At least one

Extension or an area, for example at least one

Side surface, the filter is not affected by the dimensions of the

Deduction elements specified or limited. This means that at least a portion of the filter is not located within the trigger element.

Since according to the present invention, the filter is arranged at a distance from the hood, the dimensions or dimensions of the filter are also independent of the dimensions or dimensions of the hood.

In contrast to the prior art, according to the present invention, at least one region of the filter, preferably the entire filter, is neither integrated nor installed in the extraction element nor in the cover. In particular, according to a preferred

Embodiment of the invention, the filter at least one of the trigger element and the hood independent or separate element. This has the advantage that the Luftdurchthttsfläche and the air outlet surface of the filter can be selected independently of the dimensions, for example, of the inner cross-sectional area of the trigger element. Thus, the passage area of the filter for air or vapor and / or the exit surface of the filtered air may be greater than the inner cross section of the trigger element. In the present case, filtered air is understood to mean the vapor which has been cleaned of grease and odors, in particular filtered air which is understood to be the vapor which has been purified of grease and odors. Another delimitation criterion of the present invention over the prior art is that the filtered air is not passed through an exhaust port of the trigger element or the hood but through at least one exit surface of the filter in the room. This is below the exit surface of the filter

- At least one surface facing the space of the filter or

- At least one arranged directly on the filter air outlet device, for example, at least one air outlet grille understood.

The air outlet device is arranged in particular on at least one surface of the filter facing the space and advantageously has substantially the dimensions or dimensions of this surface of the filter. The air outlet device can be replaced when changing the filter with the filter. Alternatively, the

Filter be separated from the air outlet device element and individually, d. H. without the air outlet device, be replaced. For example, the air outlet device can be assigned to a filter attachment designed for receiving the filter, in particular at least one filter housing or at least one filter frame.

Because, according to the present invention, the filter is adapted to blow the filtered vapor as filtered air over at least one exit surface into the space, the dimensions of the filter can be independent of the dimensions, such as the inner surface, the

Hood or the trigger element are designed. Thus, the filter can be arranged more flexibly compared to the prior art and more filter surface or filter mass, such as more activated carbon, are used for filtering the discharged vapor or steam.

For example, the filter can be arranged at least in regions outside of the trigger element or via the trigger element protrude. Thus, the dimensions of the filter can be chosen independently of the dimensions of the trigger element.

Furthermore, the filter can be arranged, for example, on at least one outer side of the withdrawal element facing the space. In this case, the discharged vapor or steam over at least one

Opening the trigger element in the filter and directed by the filter directly or through the air outlet device in the room. The arrangement of the

Filter on at least one of the space-facing outside of the take-off element has the advantage that the filter the air flow in the

Discharge element, in particular between intake and ceiling and / or wall, not hindered.

As an alternative to the arrangement of the filter on the outside of the withdrawal element, the filter can also on the withdrawal element, in particular between the

Room cover and the trigger element, for example between an arranged on the ceiling and / or wall of the room mouth and

Trigger element, be arranged. In this embodiment, the trigger element, for example by means of the filter with the ceiling and / or the wall, for example, connected to the mouth.

The filter can take any shape.

Regardless of the aforementioned two embodiments or in addition to this, the filter can also form at least a portion of the side wall surface of the trigger element, so be integrated into the trigger element. Also in this embodiment, at least one surface of the filter may be larger than the inner cross-sectional area of the exhaust element without obstructing the air flow between the hood and the outlet surface.

The filter can thus either placed on the trigger element or attached to at least one outer wall of the trigger element, in the Discharge element, in particular in the wall of the trigger element, integrated or mounted directly on the ceiling and / or the wall, approximately directly to the mouth.

Thus, the present invention offers the advantage that at least one

Dimension or dimension of the filter, in particular size and number of filters and size and number of air outlet surfaces of the filter, can be varied or arbitrarily designed or can. In this way, the filter surface can thus be substantially increased in comparison to the prior art without that taking place from the hood to the exit surface

Air flow is hindered in the withdrawal element.

For example, the filter may have at least two exhaust ports or exit surfaces directed in different horizontal and / or vertical directions of the space. In particular, the

Filter a directed towards the front or to the front of the steam hood exhaust surface or air outlet surface and / or from the view of the steam hood to the left blower surface or air outlet and / or from the view of the steam hood to the right blower surface or air outlet surface and / or one of the hood off, in particular to the ceiling and / or wall towards, for example, towards the mouth, directed discharge surface or air outlet surface have.

Furthermore, the filter may consist of a plurality of filters or filter elements, which are arranged in a filter attachment, in particular filter housing or filter frame, and by means of this filter attachment on

Appropriately mounted, in particular placed on the trigger element, can be. Such a filter attachment can therefore several Have filter or more exit surfaces. By way of example, these filters or exit surfaces can be substantially U-shaped and encase the trigger element at least in regions. In this embodiment, the filter cap defines or limits the exit surfaces of the filtered air, the

Exit surfaces are formed by the filter.

Since, by means of the present invention, the filter area can be substantially increased in comparison to the prior art, the volume of the filter through which the air flows and thus the interaction time of the air or the extracted mist with the filter, for example with the activated carbon, can also be increased. This significantly improves the filter effect.

For example, the filter may be at least one odor filter, such as at least one activated carbon filter. The larger filter surface or filter mass of the odor filter increases compared to the prior art significantly achieved in the exhaust mode odor reduction. In addition to the odor filter, for example in the hood, at least one further filter, for example at least one fat filter, may be arranged.

Furthermore, due to the larger filter surface or filter mass compared to the prior art, the flow velocity in the filter can be reduced. This in turn reduces the noise. The extractor hood according to the present invention can thus be made very quiet.

So that the user of the extractor device is disturbed as little as possible by filter noise, the filter is expediently at a distance from the hood, for example, directly under the ceiling and / or directly on the

Wall, approximately at the mouth to the ceiling and / or wall, arranged. This also leads to the added benefit of having the design of the hood not affected by the filter.

For selectively operating the extractor device in the exhaust or in the recirculation mode, the extractor device advantageously has at least one switching or control element. This switching or

Control element can be controlled or operated, for example, automatically, for example as a function of the outside temperature, or manually by the user of the extractor device.

Finally, the present invention relates to the use of at least one extractor device according to the above-described type for filtering kitchen fumes or fumes.

Brief description of the drawings

As already discussed above, there are various possibilities for embodying and developing the teaching of the present invention in an advantageous manner. For this purpose, reference is made on the one hand to the claims subordinate to claim 1, on the other hand are more

Embodiments, features and advantages of the present invention will be explained below, inter alia, with reference to the illustrated by the figures 1 to 2B two embodiments.

It shows:

Figure 1 is a schematic representation of a first embodiment of a fume extraction device according to the present invention.

2A is a schematic representation of a second embodiment of a fume extraction device according to the present invention and 2B is a schematic representation of a detail view of the filter of the extractor device of FIG. 2A.

Identical or similar embodiments, elements or features are provided with identical reference numbers in FIGS. 1 to 2B.

Best way to carry out the invention

To avoid superfluous repetition, the following explanations with respect to the embodiments, features and advantages of the present invention (unless otherwise stated) relate both to the extractor 100 shown in Figure 1 and to the extractor 100 'shown in Figure 2A.

In the illustrated with reference to FIG 1 first embodiment of the present invention, a fume extractor 100 and a fume hood for mounting in the region of at least one vapor source of a room, such as a cooker shown. These

Vapor extraction device 100 can be attached to a wall or freely in the room, as a so-called island range hood, on a ceiling.

The extractor device 100 has a hood 10 for sucking vapor, a vent element 20, namely a chimney element, for discharging the aspirated vapor, a fan for generating a directed from the hood 10 to the extraction element 20 air flow and a filter 30 for filtering the means of the hood 10 sucked and discharged by means of the extraction element 20 haze. The fume extractor 100 shown in Fig. 1 is a recirculation hood. The extracted from the cooking fume is thus blown into the filter 30 and after passing through the filter 30 as filtered air directly into the room.

The filter 30 may be, for example, an odor filter, in particular at least one activated carbon filter. In addition to this odor filter 30, for example in the hood 10, at least one further filter, for example at least one fat filter, may be arranged.

In the exemplary embodiment illustrated in FIG. 1, the substantially rectangular, substantially square or substantially cube-shaped odor filter 30 is arranged above the chimney element 20. In the use position of the extractor device 100 is the odor filter

30 thus mounted directly under the ceiling.

The arrangement of the odor filter 30 in the ceiling area brings various advantages. Thus, compared to the prior art, in which the odor filter 30 is arranged in the hood 10, in the embodiment shown in FIG. 1, the hood 10 can be constructed significantly narrower or more compact.

In addition, the embodiment shown in Fig. 1 is much quieter compared to the prior art. On the one hand, the

Filter noise due to the relatively large distance of the user

Vapor extraction device 100 to the filter 30 less perceived.

On the other hand, the noise is reduced because the

Flow rate of the air passed through the filter 30 is lower.

The flow rate can be reduced because in comparison In the prior art, the exit surface 32, 34, 38 of the filtered air blown into the space is substantially larger. Thus, the filter 30 of the fume extractor 100 shown in Fig. 1 has a front 32, a right 34, a left (not shown in Fig. 1) and an upper 38 exit surface for filtered air.

In addition to the exit surface 32, 34, 38 can be increased in accordance with the present invention in comparison to the prior art, the passage area of the filter for haze or air, in particular the flow-through filter cross-section. An increased passage area also makes it possible to reduce the flow velocity of the passing air and increases the filter performance.

The filter 30 shown in Fig. 1 is at its in the use position of the ceiling and the floor facing surfaces each of a

Filter attachment 40, namely a ceiling or floor plate, supported. This filter attachment 40 facilitates the installation and the replacement of the filter 30th

The second exemplary embodiment of a fume extractor 100 'according to the present invention shown in detail in FIG. 2A shows a fume hood which operates either in the exhaust air mode or in the recirculating air mode.

As a withdrawal element 20, a pipe is provided, which is connected for discharging the vapor in the exhaust air operation via an arranged on the ceiling and / or on the wall of the room mouth with at least one area outside the room, in particular with the outside area or with at least one air chimney ,

The filter 30 is of a filter cap 40, namely a U-shaped

Surrounded by frames. By means of this frame 40, the filter 30 can be arranged on the outside of the trigger element 20, namely on the Discharge pipe 20 are placed. Thus, the filter 30 surrounds the exhaust pipe 20.

Advantageously, the filter 30 in the use position of the extractor device 100 'in the region of the ceiling, for example, directly to the mouth of the exhaust pipe 20, respectively.

FIG. 2B shows a filter 30 which can be used in the filter attachment 40 shown in FIG. 2A, namely an activated carbon filter insert. This activated carbon filter insert 30 is substantially U-shaped and has outlet faces 32, 34, 36 for filtered air arranged in different directions of the space.

LIST OF REFERENCE NUMBERS

100 extractor device or vapor outlet (first

Exemplary embodiment cf. Fig. 1) 100 'extractor device or Wrasenabzug (second

Exemplary embodiment cf. Fig. 2A, 2B) 10 hood for sucking haze, in particular viewing hood or

suction

20 extraction element, in particular suction or chimney element, for example, extraction or suction

22 first facing the room, in particular front, outside of the trigger element 20 24 further facing the room, in particular from the perspective of the

Extractor hood right, outside of the trigger element 20 26 facing away from the hood 10, in particular the ceiling or

Mouth facing, the end of the trigger element 20 30 filter, in particular odor filter, for example activated carbon filter 32 first, in particular front, exit surface or discharge surface of the

Filter 20 34 second, in particular from the perspective of the hood right,

Exit surface or discharge surface of the filter 20 36 third, in particular from the perspective of the extractor hood left,

Exit surface or discharge surface of the filter 20th

38 fourth, in particular the ceiling or the wall facing, exit surface or discharge surface of the filter 20th

40 Filter attachment, in particular filter housing or filter frame

Claims

An extractor device (100, 100 ') for attachment in the region of at least one vapor source of a room, comprising at least one hood (10) for sucking in haze, at least one withdrawal element (20) for discharging the aspirated vapor, wherein the withdrawal element (20) at least one suction opening is connected to the hood (10) and at least one with a distance from the hood (10) arranged filter

(30) for filtering the aspirated vapor, wherein the filter (30) is adapted to direct the haze as filtered air over at least one exit surface (32, 34, 36, 38) of the filter

(30) to blow into the room, and that at least one dimension of the filter (30) is independent of the dimensions of the trigger element (20) and the dimensions of the hood (10).

2. Vapor extraction device according to claim 1, characterized in that the filter (30) is at least one of the trigger element (20) and of the hood (10) independent or separate element.

3. extractor device according to claim 1 or 2, characterized in that the filter (30) on at least one space facing the outside (22, 24) of the trigger element (20) is arranged, for example that the filter (30) the trigger element (20) at least partially surrounds or sheathed.

4. Vapor extraction device according to at least one of claims 1 to 3, characterized by at least one for receiving the filter (30) formed filter attachment (40), in particular at least one filter housing or at least one filter frame connected to the withdrawal element (20), in particular at the Outside (22, 24) or at one end (26) of the trigger element (20) can be arranged, for example, on the trigger element (20) can be placed, is.

5. Vapor extraction device according to claim 4, characterized in that at least one dimension or dimension of the exit surface (32, 34, 36, 38) corresponds to a dimension or dimension of the filter attachment (40).

6. Vapor extraction device according to at least one of claims 1 to 4, characterized in that at least one dimension or dimension of the exit surface (32, 34, 36, 38) corresponds to a dimension or dimension of the filter (30).

7. extractor device according to at least one of claims 1 to 6, characterized in that the filter (30) on the hood (10) facing away from the end of the trigger element (20), in particular on the ceiling and / or the wall, is arranged.

8. extractor device according to at least one of claims 1 to 7, characterized in that the outlet surface (32, 34, 36, 38) of the filter (30) by at least one space facing the surface of the filter (30) or by at least one of at least one of the room facing the surface of the filter (30) arranged air outlet device, for example, at least one air outlet grille is formed.

9. Vapor extraction device according to at least one of claims 1 to 8, characterized in that the outlet surface (32, 34, 36, 38) at least the cross-sectional area of the trigger element (20) corresponds, in particular that the outlet surface (32, 34, 36, 38) is greater than the cross-sectional area of the take-off element (20) and / or the diameter of the filter (30) at least equal to the diameter of the take-off element (20), in particular that the diameter of the filter (30) is greater than the diameter of the take-off element (20).

10. Vapor extraction device according to at least one of claims 1 to 9, characterized in that the filter (30) at least two of the exit surfaces (32, 34, 36, 38), wherein the exit surfaces (32, 34, 36, 38) in different horizontal and / or vertical directions of the space are directed, in particular substantially angled, for example, substantially at right angles, and / or substantially parallel to each other, approximately substantially U-shaped or substantially cube-like, are arranged.

11. Vapor extraction device according to any one of claims 1 to 10, characterized in that the outlet surface (38) or - at least one (38) of the exit surfaces (32, 34, 36, 38) of the hood (10) away, in particular to the ceiling of the room, is directed.

12. extractor device according to at least one of claims 1 to 11, characterized in that the withdrawal element (20) has at least one fan for generating a of the hood (10) to the withdrawal element (20) directed air flow.

13. Vapor extraction device according to at least one of claims 1 to 12, characterized by at least one switching or control element for selectively operating the

Vapor extraction device in the exhaust air or in the recirculation mode, the discharged fume in exhaust air through the ceiling and / or the wall outside the room, in particular into the open air and / or in an air chimney, and in recirculation mode in the filter (30) and as filtered Air is directed back into the room.

14. Filter (30) for use in a fume extraction device (100, 100 ') according to one of claims 1 to 13.