WO2006092303A1 - 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

 FOUNTAIN SUCTION DEVICE, ESPECIALLY FOR KITCHENS

description

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

Vapor extraction devices in general are known, for example, from EP 0 915 299 B1 and EP 1 194 721 B1. These known vapor extraction devices are large devices which are usually integrated into a table, a cupboard or the like at a workstation, in particular as a vapor detection device for kitchens and dispensers, for detecting air at least laden with odors or fumes at the work station usually equipped with thermal devices. These known Funstabsaugvorrichtungen do not allow flexible use, since they can only be used in the workplace for which they are designed.

A vapor extraction device specified in the preamble of claim 1 is known from DE 101 46 153 A1. This known Funstabsaugvorrichtung has a housing which consists of a plate-like foot, a vertical stand and arranged at the upper end portion of the stator suction hood, which is articulated via a hinge on the stand. 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 at most contains a heating device for a pot which can be put on the foot. The like. With this known fume extraction device, the aim is to reduce the usual great 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 swivel joint be, 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.

DE 79 24 997 U1 shows a portable Wrasenabzug that should be usable at every dining area. 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 come to the hood on the foot of the pedestal housing, so that in height at least as much storage space would be required as in the fume extraction device according to the above-mentioned DE 101 46 153 A1.

A correspondingly formed fume extraction device is shown in FR 2 761 620 A1, in which the technology is essentially accommodated in the fume hood. This is slightly displaceable in height, but can not be lowered to the foot, so that the space required here is greater than in the case of the vapor extraction devices according to the aforementioned publications DE 101 46 153 A1 and DE 79 24 997 U1.

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. Even with this cooker hood, the hood comes to rest when not in use on the protective plate, so that when not in use foot Hood and are arranged one above the other and in height need a lot of storage space as the fume extraction device according to the above-mentioned DE 101 46 153 A1.

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 a platinum surface is present 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 (Rompp 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 there is a temperature of about 400 ^° C. in the oxidation catalytic converter, the gas emitted by the oxidation catalytic converter should actually be hot enough to subsequently be used to support the heating source and the cooking process. 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.

JP 09264543 A shows a device which prevents oil mist from spreading in a room from a cooking place. For this purpose, the device has a ventilation channel 7 with a suction opening 5 and an outlet 6. A fan is arranged in the ventilation channel. At the intake a filter 9 is attached, which adsorbs the oil mist from the air that circulates 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 a fume extraction device of the type mentioned so that it has a smaller need for storage when not in use.

This object is achieved by a fume extraction device with the features specified in claim 1.

The fume extraction device according to the invention, in which the housing is formed overall as a substantially flat cuboid having the suction port and the exhaust port, and in which the suction fan and at least the odor filter are accommodated in the housing between the two openings, offers over the known vapor extraction device according to DE 101 46 153 A1 has the advantage that the housing consists only of a single flat cuboid containing the entire technique of the vapor extraction. The grease filter can either be housed in the cuboid housing or in a suction hood. The housing of the fume extraction device according to the invention therefore has a very simple structure, so that it can be easily removed when not in use. No hinges are provided or operated to reduce the fume extractor for disuse. Only in the case of the embodiment with a suction hood this would previously be detached from the housing. Since the fume extraction device according to the invention is designed as a portable table device, it can be used flexibly at workplaces of any kind, whether in the catering or in the private kitchen. It need no special work tables or cabinets or rooms to be modified so that a fume extraction can be integrated, because the fume extraction device according to the invention only there placed on the table or cabinet and only needs to be connected to a power outlet for their suction fan, where with the emergence of haze, Wrasen and / or odors is to be expected. 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.

Advantageous embodiments of the Funstabsaugvorrichtung according to the invention form the subject of the dependent claims.

If, in one embodiment of the fume extraction device according to the invention, the suction opening is formed at one end of the housing in a narrow side thereof, only care must be taken that the suction opening is aligned during operation of the fume extraction device to a place where haze arises.

If, in a further embodiment of the vapor extraction device according to the invention, the suction opening in the plane of the upper side of the housing is is formed, the fume extraction device can extract haze more effective, for example, when preparing or keeping food warm on the footprint of the fume extraction.

If in a further embodiment of the vapor 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 make even more effective, especially if the suctioned vapor 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 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 air opening is formed in at least one downstream side of the suction fan located side of the housing, the size of the Optimize exhaust port under noise and Luftaustrittsgeschwindigkeitsge- viewpoints in a simple manner by the exhaust port is dimensioned by providing in one or more sides of the housing accordingly. In principle, exhaust air openings can be provided in all sides of the housing, which are downstream of the suction fan (except in the upper side of the housing, if this is 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. The odor filter is a flexible mat of open-cell foam coated with activated charcoal.

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 have GN dimensions, individually or to several are placed 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 optional 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.

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

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

FIG. 2 is a longitudinal sectional view of a vapor suction device of the type shown in FIG. 1; FIG.

3 is a perspective view of the vapor extraction device according to FIG. 1, in combination with a thermal device for preparing food,

Fig. 4 is 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 extraction combined with two thermal devices for food preparation. 1 shows a perspective view of a first embodiment of a vapor extraction device, which is designated overall by 10. The vapor extraction device 10 has a housing 12, which according to the sectional view in FIG. 2 has an intake opening 14 and an exhaust air opening 16. 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 o- 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 at its top with a work surface 26 is provided. 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 is shown in Fig. 3 in perspective view in combination with the Funstabsaugvorrichtung 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, which is not shown, the suction fan 18 would be in Fig. 2 farther right approximately 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 cuboid Housing 12 are located.

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 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 embodiments of the fume extraction device 10 shown in FIGS. 1, 3 - 5, the suction hood 24 has a removable glass plate 35 above its air inlet opening, each as a protection guard, 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 drip tray 38. The grease filter 20 is preferably a so-called cyclone eddy current filter (manufactured by the company Rentschier 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 opening 16 is located in the downstream of the suction fan 18, compared to the table surface slightly raised bottom 40 of the housing 12 is formed. 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 12. 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, as shown in FIG. 3, the length a (which in this case does not include the thickness of the suction hood 24 or the intake manifold 32) and the width b of the housing 12 are the dimensions of a size 1/1 GN 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 the width also GN dimensions, as shown in FIG. 3. The thermal device 30 is an electric grill plate in FIG. It has the length and width also GN dimensions as the housing 12, as shown in FIG. 3.

The embodiment of the vapor extraction device 10 according to FIGS. 4 and 5 differs from the embodiment according to FIGS. 1 to 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, the thermal devices 30 are each shown as an electric cooktop. In the embodiment according to FIGS. 4 and 5, the housing 12 has the size 2/1, so in the width of twice the GN dimension compared to the embodiment of FIGS. 1-3, namely 2b, and therefore can be two thermal devices 30th size 1/1 next to each other.

Claims

12M 1152 PCPatentansprüche 1. fume extraction device, designed as a portable table device, in particular for kitchens, with a housing (12) having a suction and an exhaust port (14, 16) and a suction fan (18) and a filter device (20, 22) with at least one Grease filter (20) and at least one odor filter (22) and on an upper side with a footprint (26) for at least one thermal device (30) is provided, which is particularly suitable for food preparation, characterized in that the housing (12) is formed overall as a substantially flat cuboid (12 ') having the suction opening (14) and the exhaust opening (16), and in that the housing (12) between the two openings (14, 16) the suction fan (18) and at least the odor filter (22) are housed. 2. Funstabsaugvorrichtung according to claim 1, characterized in that the suction opening (14) at one end of the housing (12) in a narrow side (13) thereof is formed. 3. vapor extraction device according to claim 1 or 2, characterized in that the suction opening (14) in the plane of the top of the housing (12) is formed. 4. vapor extraction device according to one of claims 1 to 3, characterized in that in the region of the suction opening (14) to the housing (12) an upwardly projecting suction hood (24) is detachably connected. 5. vapor extraction device according to one of claims 1 to 4, characterized in that the grease filter (20) immediately downstream of the suction port (14) in the housing (12) is arranged. 6. vapor extraction device according to one of claims 1 to 4, characterized in that the grease filter (20) immediately downstream of the suction port (14) in an intake manifold (32) is arranged. 7. vapor extraction device according to one of claims 1 to 6, characterized in that the exhaust port (16) in at least one downstream of the suction fan (18) located side (40) of the housing (12) is formed. 8. fume extraction device according to one of claims 1 to 7, characterized in that the odor filter (22) downstream of the suction fan (18) is arranged. 9. vapor extraction device according to claim 8, characterized in that the odor filter (22) covers the exhaust port (16). 10. vapor extraction device according to claim 9, characterized in that the exhaust port (16) has a hinged grid (42) as a holder for the odor filter (22). 11. vapor extraction device according to one of claims 1 to 10, characterized in that the suction fan (18) is in the housing (12) fitted, caseless fan. 12. vapor extraction device according to one of claims 1 to 11, characterized in that the outer dimensions of the housing GN (gastro-norm) dimensions (a, b, 2b) have. 13. vapor extraction device according to one of claims 1 to 12, characterized in that the footprint (26) according to length and width GN dimensions. 14. vapor extraction device according to one of claims 1 to 13, characterized in that the exhaust port (16) in a downstream of the Suction blower (18) located opposite the table surface slightly raised bottom (40) of the housing (12) is formed.