EP1853853B1 - Vapour extractor unit, in particular for kitchens - Google Patents

Abstract

The invention relates to a vapour extractor unit (10), in particular for kitchens, which is configured as a portable table-top device. The upper face of said extractor unit (10) is equipped with a utility surface of a thermal device (30) for preparing meals. The housing (12) is configured as an essentially flat parallelepiped (12'), which is provided with a suction opening (14) and an exhaust opening (16). An exhaust fan (18) and an odour filter (22) are located in the housing (12) between the two openings (14, 16). When not in use, the vapour extractor unit (10) has compact storage-space requirements. The vapour extractor unit (10) and the thermal device (30) are manufactured to Gastro-Norm (GN) dimensions.

Description

The invention relates to a vapor extraction device specified in the preamble of claim 1. Art.

Such a vapor extraction device is as part of a kitchen grill from the FR 2 619 198 A known. The kitchen grill has a lid, in which a grill is firmly installed, so that the grill with the lid can be folded upwards.

A similar fume extraction device is part of a cook / Dunstabsaugkombination, from the FR 2 537 020 A is known. It is a movable furniture in which at least one cooking appliance is installed. Dust that occurs when cooking is sucked in the upper part of the furniture, sucked through arranged inside the furniture filter devices and delivered below as purified air from the furniture.

Other vapor extraction devices are generally for example from the EP 0 915 299 B1 and EP 1 194 721 B1 known. These known Funstabsaugvorrichtungen are large devices that are designed as a piece of furniture. They are used in particular as a vapor detection device for kitchens and dispensers or generally for detecting at least with odors or vapors laden air at a workplace, which is usually equipped with thermal devices. These known vapor extraction devices can only be used where such large devices can be installed.

Another Funstabsaugvorrichtung, but which is designed as a desktop device, is from the DE 101 46 153 A1 known. It has a housing that consists of a plate-like foot, a vertical stand and one at the upper end portion the stator arranged suction hood, which is articulated via a hinge on the stand exists. In the stand a fan is housed. The suction hood contains a grease filter over a suction opening. At the back of the stand there is an outlet opening, which is equipped with an odor filter. The plate-like foot is empty or contains at most a heating device for an adjustable on the foot pot or the like. With this known fume extraction device is sought to reduce the usual large need for storage space when not in use. In the known Funstabsaugvorrichtung seems successful, but requires a quite complicated structure. Because not only the suction hood must be connected to the stand by a hinge, but also the plate-like foot, so that the suction hood and the foot can be folded when not in use on the stand. The storage space is thus still relatively high in height, because in the folded position of the fume extraction, the suction hood and the plate-like foot are on the stand. Incidentally, this arrangement can only be used if the plate-like foot is relatively small and the suction hood does not have a large projection.

The DE 79 24 997 U1 shows a portable fume hood, which should be usable at every dining place. The vapor outlet has a stand housing, on which a stand formed as a channel is arranged, at the upper end portion of which a hood arranged above the housing is attached with a filter. In the foot of the pedestal housing a fan is arranged. Although the stand could be designed to be telescopically displaceable in order to allow a collapse of the fume hood when not in use and thereby reduce the storage space required for this, but in this case would be the hood on the foot of the pedestal housing, so that in height at least as a lot of storage space as in the fume extraction device according to the above DE 101 46 153 A1 would be needed.

An appropriately trained Funstabsaugvorrichtung shows the FR 2 761 620 A1 , in which the technology is essentially housed in the fume hood. This is somewhat displaceable in height, but can not be lowered to the foot, so that the space required here is greater than in the case of Funstabsaugvorrichtungen according to the aforementioned publications DE 101 46 153 A1 and DE 79 24 997 U1 ,

The DE 77 36 750 U shows an electric cooker hood, in which the actual hood is mounted height adjustable on a pedestal and includes the entire technology including a downwardly radiating infrared radiation source. The pedestal carries a protective plate, which is to protect a table from the radiation from the infrared radiator and od on the grill device. Like. Can be made. Also in this hood, the hood comes to rest on the protective plate when not in use, so that when not in use, the foot and hood are arranged one above the other and in height need a lot of storage space as the fume extraction device according to the above DE 101 46 153 A1 ,

The JP 57037635 A describes a cooking appliance in which the spread of haze and odor produced during cooking should be prevented by treating the haze and odor with an oxidation catalyst. Although the known cooking appliance is also designed as a portable table device having a housing, a suction and an exhaust port are not provided in the housing, but in a trained as a rectangular part of the vapor channel. Immediately at the exhaust port of the oxidation catalyst is mounted, is arranged directly above the heat source of the cooking appliance. Haze sucked in through a suction fan located in the vapor duct is then cleaned by the oxidation catalyst. Further details on the use of heat are missing in the JP publication. However, it is believed that there is a platinum surface in the oxidation catalyst, which is heated to about 400 ° C, similar to an oxidation catalyst in the three-way catalyst of a motor vehicle ( Römpp Chemie Lexikon, G. Thieme Verlag Stuttgart, 1990, p. 2169-2171 , especially p. 2170). After the cleaning process, the resulting purified gas is discharged from the exhaust port and passed through the heating source 4 and a material to be cooked to heat it. Since a temperature of about 400 ° C prevails in the oxidation catalyst, the gas discharged from the oxidation catalyst is likely to be actually hot enough to be subsequently in support of the heat source and the cooking process to be used. In order for the oxidation catalyst to heat the gas to be treated sufficiently, the amount of gas circulated through the known cooking appliance must be substantially lower than in a conventional vapor extraction device. Finally, the known cooking appliance also has no grease filter.

The JP 09264543 A shows a device that prevents spread of oil mist in a room from a cooking place. For this purpose, the device has a ventilation channel 7 with a suction port 5 and an outlet 6. In the ventilation duct, a fan is arranged. At the suction port, a filter 9 is mounted, which adsorbs the oil mist from the air circulating in the ventilation duct. The device is constructed telescopically and takes up a hotplate with a hotplate. Also, this known device is provided with no odor filter.

The object of the invention is to improve the suction of a fume extraction device of the type mentioned and to maximize their use.

This object is achieved by such a vapor extraction device having the features indicated in the characterizing part of the independent claim 1. Advantageous embodiments of the vapor extraction device according to the invention form the subject matters of the dependent claims.

In the vapor extraction device according to the invention, the grease filter can be housed either in the cuboid housing or in a suction hood. The housing of the fume extraction device according to the invention has a very simple structure, so that it can be easily removed when not in use. In the case of the presence of a suction hood, this would previously be detached from the housing. The fume extraction device according to the invention can be used flexibly at workplaces of any kind, whether in the catering or in the private kitchen. There is no need to modify special work tables or cabinets or even rooms so that a fume extractor can be integrated because the fume extractor according to the invention only there placed on the table or cabinet and only needs to be connected to a power outlet for the power supply of their suction fan, where to expect the formation of fumes, fumes and / or odors. When not in use, it can be stored in the smallest space.

The fume extraction device according to the invention can od in a kitchen, a laboratory. Like. Also be used advantageously when no thermal devices for the preparation of food in operation. The cook, the housewife or the lab assistant can namely use the footprint at the top of the cuboid housing as a work surface to perform on her unpleasant work, which produces vapors or odors. For example, the cook or housewife can cut onions or garlic on the floor, an activity that often causes him or her to work under the cooker hood that is commonly found in the kitchen. Since the fume extraction device is provided according to the invention with a footprint for at least one thermal device that can be used in particular for food preparation, practically the workplace is already integrated into the Funstabsaugvorrichtung. It only needs the fume extraction in a kitchen or front-cooking in a canteen or in the breakfast room of a hotel or to keep warm at the hot food on the table and a thermal device to be placed on the footprint of the fume extraction to everything for the food preparation or keeping food warm. After use, the thermal device and the vapor extraction device can be cleared away again, which requires little storage space. When in the fume extraction device according to the invention in the region of the suction opening to the housing an upwardly projecting suction hood is firmly or detachably connected, the Hunstabsaugvorgang can be particularly effective, especially if the suctioned mist is generated on their own top. The suction hood, which is detachably connected to the housing, can be loosened after use and cleaned in the dishwasher.

If, in one embodiment of the fume extraction device according to the invention, the suction opening at one end of the housing in a narrow side of the same is formed, it is only necessary to ensure that the suction port is aligned during operation of the vapor extraction device to a place where haze arises.

If, in a further embodiment of the fume extraction device according to the invention, the grease filter is arranged immediately downstream of the suction opening in the housing, any contamination of the housing by grease can be avoided. It is only necessary to occasionally remove the grease filter from the fume extractor and clean it in a dishwasher. When the suction port is in the plane of the top of the housing, the grease filter is conveniently located immediately below the suction port in an extension of the housing. If a suction hood is used, it can be placed on the intake manifold or directly on the intake port. The grease filter can be arranged as before or housed in the suction hood and removable from this or be removable with this.

If in a further embodiment of the fume extraction device according to the invention, the grease filter is arranged immediately downstream of the suction in an intake manifold, the grease filter can be conveniently removed from the intake upward, wherein the air inlet opening of the intake is also the suction of the fume extraction.

If, in a further embodiment of the fume extraction device according to the invention, the exhaust opening is formed in at least one side of the housing downstream of the suction fan, the size of the exhaust opening can be easily optimized under noise formation and air outlet speed aspects by providing the exhaust opening by providing one or more Pages of the housing is dimensioned accordingly. In principle, exhaust ports may be provided in all sides of the housing downstream of the aspirator (except in the top of the housing when used as a control or work surface).

If the odor filter is arranged downstream of the suction fan in a further embodiment of the air suction device according to the invention, the aforementioned optimization can be simplified by appropriate selection of the odor filter. As an odor filter is a flexible mat of open-cell foam, which is coated with activated carbon.

In a further embodiment of the fume extraction device according to the invention, the odor filter covers the exhaust port, it can be easily maintained.

For this purpose, it is expedient if in the vapor extraction device according to the invention in a further embodiment, the exhaust port has a hinged grid as a holder for the odor filter.

If, in a further embodiment of the fume extraction device according to the invention, the suction fan is a caseless fan fitted in the housing, this contributes to the saving of space and weight, which is an essential aspect for a portable tabletop device such as the fume extraction device according to the invention.

If in a further embodiment of the vapor extraction device according to the invention, the outer dimensions of the housing GN (gastro-norm) dimensions according to EN 631 have, the fume extraction device can be used where otherwise GN food containers are used.

If in a further embodiment of the fume extraction device according to the invention, the work surface according to length and width GN dimensions, thermal devices whose outer dimensions GN dimensions can be made individually or to several on the work surface. In a particularly preferred embodiment of the fume extraction device according to the invention, the work surface and the housing are dimensioned so that there is space for two thermal devices with GN dimensions. An optionally existing suction hood will expediently extend over the full extent of the housing.

If, in a further embodiment of the fume extraction device according to the invention, the exhaust air opening is located in a downstream of the suction fan, opposite the table surface slightly raised bottom of the housing, the purified air at the bottom of the housing can flow freely into the surrounding space. Moreover, there is plenty of space available at this point of the housing for the exhaust port, so that the exhaust port and thus the odor filter can be formed correspondingly large area. The cleaned air will flow out at the bottom of the housing at a correspondingly lower speed, so that the fume extraction device according to the invention operates correspondingly quiet.

Fig. 1

in perspektivischer Darstellung eine erste Ausführungsform einer Dunstabsaugvorrichtung nach der Erfindung,

Fig. 2

eine Längsschnittansicht einer Dunstabsaugvorrichtung der in Fig. 1 dargestellten Art,

Fig. 3

in perspektivischer Darstellung die Dunstabsaugvorrichtung nach Fig. 1, in Kombination mit einem thermischen Gerät zur Speisenzubereitung,

Fig. 4

in perspektivischer Darstellung eine zweite Ausführungsform der Dunstabsaugvorrichtung nach der Erfindung und

Fig. 5

in gleicher Darstellung wie in Fig. 4 die Dunstabsaugvorrichtung kombiniert mit zwei thermischen Geräten zur Speisenzubereitung.

Embodiments of the invention will be described in more detail below with reference to the drawings. It shows

Fig. 1

1 is a perspective view of a first embodiment of a vapor extraction device according to the invention,

Fig. 2

a longitudinal sectional view of a vapor extraction of the in Fig. 1 represented type,

Fig. 3

in perspective view of the fume extraction device according to Fig. 1 , in combination with a thermal food preparation device,

Fig. 4

in a perspective view of a second embodiment of the fume extraction device according to the invention and

Fig. 5

in the same representation as in Fig. 4 the fume extractor combined with two thermal appliances for food preparation.

Fig. 1 shows a perspective view of a first embodiment of a fume extraction device, which is designated overall by 10. The fume extraction device 10 has a housing 12 which, according to the sectional view in FIG
Fig. 2 an intake port 14 and an exhaust port 16 has. The housing 12 has between the suction port 14 and the exhaust port 16 a flat built suction fan 18 and a filter device. The latter consists in the illustrated embodiment of a grease filter 20 and an odor filter 22. At one end of the housing 12 is provided as a part thereof or as an approach to the same an intake manifold 24.

The fume extraction device 10 is designed as a portable tabletop device. This tabletop device is, apart from the attachable to the housing 12 or integrated into the housing 12 suction hood 24, which will be described in more detail below, a flat table device, which is formed as a flat cuboid 12 'and provided on its upper side with a working surface 26 is. A switch 28 is used to turn on and off the suction fan 18. The work surface 26 is preferably at least scratch and cut resistant, so that it can be used when working in the kitchen or in the laboratory as a real work surface on the kitchen work For example, onions can be cut. In addition, the work surface 26 is provided as a footprint for a thermal device 30, which in Fig. 3 shown in perspective view in combination with the fume extraction device 10 and will be described in more detail below. If the work surface 26 is specially designed as a footprint for a thermal device, it is preferably additionally heat-insulated or is cooled from the inside of the housing 12 ago.

The control or work surface 26 may also be formed as a heatable surface, so that it can be used as a grill plate or cooking surface. In this case, a preparation device would be integrated into the fume extraction device 10.

For heating and cooling of the working surface 26 and the Peltier effect could be exploited. In this case, the top of the housing 12 could consist of a plate of Peltier-compatible material.

The suction opening 14 is preferably formed at one end of the housing 12, for example in its narrow side 13, as indicated by dashed lines. In this Case not shown, the aspirator 18 would be in Fig. 2 further to the right about in the middle in the housing 12 and the grease filter 20 between the suction port 16 in the narrow side 13 and the suction fan also in the interior of the housing 12 formed as a cuboid.

Further, the suction port 14 may instead be formed in the plane of the top of the housing 12 (as also indicated by dashed lines), then the grease filter 20 would be underneath in a space 15 which would be part of the cuboid. In the case indicated only by dashed lines, since the suction opening is formed in the plane of the top of the housing 12, the fume extraction device can suck more effectively, for example when preparing or keeping food warm on the footprint of the fume extraction device. In the illustrated preferred case, the suction opening is parallel to the plane of the top of the housing 12 at the inlet of an over the top of the housing 12 upwardly projecting intake 32. Further, preferably in the region of the suction port 14 to the housing 12, the upwardly projecting Air intake 24 permanently or detachably connected. The suction hood 24 has an air inlet opening 34 above a baffle plate 36. The latter is usually still provided on its back with an air guide device, which is not shown here for clarity. The intake manifold 32 may also be part of the suction hood 24 and with this to the housing 12 connectable and removable from the same. In the in the Fig. 1 . 3 - 5 illustrated embodiments of the fume extraction device 10, the suction hood 24 has above its air inlet opening respectively as Hutzenschutz a removable glass plate 35, which can be cleaned separately in the dishwasher. The parting plane between the intake manifold 32 and the housing 12 could lie in the plane of the top of the housing 12. In the illustrated embodiment, the grease filter 20 is obliquely inserted from above into the intake manifold 32 and extends with its lower end into a grease collecting tray 38. The grease filter 20 is preferably a so-called cyclone eddy current filter (manufactured by Rentschler REVEN Lüftungssysteme GmbH, D). 74372 Sersheim). The grease filter 20 is disposed immediately below the intake port 14 in all cases.

The suction fan 18 is disposed downstream of the suction port 14. The exhaust port 16 is formed in the downstream of the suction fan 18, opposite the table surface slightly raised bottom 40 of the housing 12. The odor filter 22 is disposed downstream of the suction fan 18 and covers the exhaust port 16 in the bottom 40 of the housing 12th
The exhaust port 16 has a hinged grid 42 as a holder for the odor filter 22. The suction fan 18 is a housing-free fan fitted in the housing 12. On the opposite side to the suction hood 24 operating side of the housing 12 this rests on feet 44, so that the purified air can flow freely at the bottom of the housing 12 in the surrounding space.

The outer dimensions of the housing 12 have GN dimensions. Accordingly, according to Fig. 3 the length a (which in this case does not include the thickness of the suction port 24 or the intake port 32) and the width b of the housing 12, the dimensions of a GN 1/1 size food container according to EN 631-1. For a size 1/1 food container, the dimensions are a = 530 mm and b = 325 mm.

The work surface 26 has the length and width also GN dimensions, as it Fig. 3 shows. The thermal device 30 is in Fig. 3 an electric grill plate. It also has GN dimensions like the case 12, as it does in length and width Fig. 3 shows.

The embodiment of the vapor extraction device 10 according to the Fig. 4 and 5 differs from the embodiment according to the Fig. 1-3 in that the working surface 26 of the housing 12 is dimensioned so wide that it can serve as a footprint for two thermal devices 30. In Fig. 5 For example, the thermal devices 30 are each shown as an electric cooktop. In the embodiment of the Fig. 4 and 5 the housing 12 has the size 2/1, so in the double width GN dimension compared to the embodiment of the Fig. 1-3 2b, and can therefore accommodate two size 1/1 thermal devices 30 side by side.

Claims (12)

1. A vapor-exhaust device, configured as a portable table-top device, for kitchens, comprising
   a housing (12) having a suction opening (14) and an exhaust air opening (16) as well as a suction blower (18) and a filter device (20, 22) including at least one grease filter (20) and at least one odor filter (22) which are accommodated in the housing (12) between the two openings (14, 16), said housing (12) being configured on the whole as an essentially low right parallelepiped (12') which includes the suction opening (14) and the exhaust air opening (16),
   characterized in that an upwardly projecting suction hood (24) is detachably secured to the housing (12) in the area of the suction opening (14) and that the entire upper side of the housing (12) is configured as a depository area (26) for at least one thermal appliance (30) suitable for use in the preparation of food.
2. The vapor-exhaust device according to claim 1, characterized in that the suction opening (14) is provided at one end of the housing (12) in a narrow side (13) of said housing.
3. The vapor-exhaust device according to claim 1 or 2, characterized in that the grease filter (20) is arranged directly downstream from the suction opening (14) in the housing (12).
4. The vapor-exhaust device according to claim 1 or 2, characterized in that the grease filter (20) is arranged directly downstream from the suction opening (14) in a suction neck (32).
5. The vapor-exhaust device according to any one of the claims 1 to 4, characterized in that the exhaust air opening (16) is provided in at least one side (40) of the housing (12) lying downstream from the suction blower (18).
6. The vapor-exhaust device according to any one of the claims 1 to 5, characterized in that the odor filter (22) is arranged downstream from the suction blower (18).
7. The vapor-exhaust device according to claim 6, characterized in that the odor filter (22) covers the exhaust air opening (16).
8. The vapor-exhaust device according to claim 7, characterized in that the exhaust air opening (16) includes a fold-out grille (42) as a holder for the odor filter (22).
9. The vapor-exhaust device according to any one of the claims 1 to 8, characterized in that the suction blower (18) is a fan fitted in the housing (12) without an enclosure of its own.
10. The vapor-exhaust device according to any one of the claims 1 to 9, characterized in that the external dimensions of the housing are GN (Gastronorm or -standard) dimensions (a, b, 2b).
11. The vapor-exhaust device according to any one of the claims 1 to 10, characterized in that the depository area (26) has GN dimensions over its length and width.
12. The vapor-exhaust device according to any one of the claims 1 to 11, characterized in that the exhaust air opening (16) is provided in a lower side (40) of the housing (12), which lies downstream from the suction blower (18) and is somewhat elevated relative to the table top.

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