AU2021386547A9 - Extraction system for removing air and cabinet - Google Patents
Extraction system for removing air and cabinet Download PDFInfo
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- AU2021386547A9 AU2021386547A9 AU2021386547A AU2021386547A AU2021386547A9 AU 2021386547 A9 AU2021386547 A9 AU 2021386547A9 AU 2021386547 A AU2021386547 A AU 2021386547A AU 2021386547 A AU2021386547 A AU 2021386547A AU 2021386547 A9 AU2021386547 A9 AU 2021386547A9
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- 238000000605 extraction Methods 0.000 title claims abstract description 158
- 238000010411 cooking Methods 0.000 claims abstract description 128
- 230000001419 dependent effect Effects 0.000 claims abstract description 14
- 238000007664 blowing Methods 0.000 claims abstract description 9
- 239000003570 air Substances 0.000 claims description 205
- 108091006146 Channels Proteins 0.000 claims description 198
- 239000000306 component Substances 0.000 claims description 158
- 230000007246 mechanism Effects 0.000 claims description 21
- 239000012080 ambient air Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- 230000008093 supporting effect Effects 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 6
- 239000004411 aluminium Substances 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
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- 241000905957 Channa melasoma Species 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 claims 1
- 210000002105 tongue Anatomy 0.000 description 31
- 239000000243 solution Substances 0.000 description 21
- 238000003860 storage Methods 0.000 description 10
- 208000028659 discharge Diseases 0.000 description 9
- 238000009434 installation Methods 0.000 description 7
- 229910052729 chemical element Inorganic materials 0.000 description 6
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2042—Devices for removing cooking fumes structurally associated with a cooking range e.g. downdraft
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2078—Removing cooking fumes movable
- F24C15/2085—Removing cooking fumes movable adjustable in height
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
- Combinations Of Kitchen Furniture (AREA)
- Separation By Low-Temperature Treatments (AREA)
- Separation Of Gases By Adsorption (AREA)
Abstract
An extraction system (10) for removing air from an area above a cooking hob comprises an extraction device (12) and an outlet air channel (14). The extraction device (12) comprises an inlet opening (16) for an air intake into an interior of the extraction device (12),- a conduction means for conducting the air through the interior of the extraction device (12), and an outlet connection piece connected to a channel input of the outlet air channel (14).The outlet air channel (14) is configured for transmitting exhaust air from the channel input to a channel output provided for blowing out the exhaust air.According to the invention, the outlet air channel (14) includes at least a first component or a first section of its en-tire length having a cross-sectional area and/or a passage area, which extends in a first direction and in a second direction orthogonally to the first direction. The ratio of the ex-tension in the first direction to the extension in the second direction is at least 3 to 1, preferably at least 5 to 1, more preferably at least 10 to 1. Further, the outlet air channel(50) includes at least a first component (60) or a first section comprising or being connected to the channel output (30),wherein the first component (60) or the first section is at least partially movable mounted and/or movable configured to adjust the location of the channel output (30) with reference to the cooking hob (12), preferably dependent on at least one parameter.
Description
Description
EXTRACTION SYSTEM FOR REMOVING AIR AND CABINET
The present invention relates to an extraction device for remov ing air from an area above a cooking hob according to the pream- ble of claim 1. Further, the present invention relates to an ex traction system for removing air from an area above a cooking hob according to claims 1 and 16. The present invention relates further to a combination appliance according to claim 25. Fur ther, the present invention relates to a system comprising a cabinet and an extraction system according to anyone of the pre ceding claims 1 to 24. Finally, the present invention relates to a cabinet, in particular a kitchen cabinet, according to claim 29. During the performance of cooking activities under use of a cooking hob, cooking vapours are generated, which are distrib uted over the cooking area. In order to avoid these cooking va pours to be spread throughout the entire kitchen space, an ar rangement of an extraction device, particularly an extractor hood, is common. Said extraction device is operated in parallel to the cooking hob, thereby sucking in those cooking vapours in order to filter out particles and tiny droplets from the vapours and/or to blow the vapours to the outside of the building. While it has been common to arrange such an extractor hood above the cooking area, in recent years downdraft extraction devices have been finding a growing market. Such kind of extraction device is usually arranged below a worktop of the related cooking hob and it comprises at least one fan for sucking air from the cooking area through an opening or recess arranged in the worktop.
Commercial combination appliances with a downdraft extraction device usually operate with recirculating air, which is not ex tracted outside of the installation room or building, but is blown out into a kitchen cabinet or directly into the ambient air after it has been filtered. That way, the extraction device operates in a so-called air-recycling mode. A common order of arrangement of devices is as follows: the air with cooking va pours is aspirated from the cooking zones above the worktop of the cooking hob through the opening or recess, subsequently passing a particle filter, e.g. a grease particle filter, and particularly an odour filter before being blown out through an outlet opening.
The respective airflow is commonly guided by means of an air channel system and a related air duct is installed inside the kitchen cabinet, which also accommodates the extraction device. It is common to place the air duct, notably a vertically aligned section thereof, close to a rear wall of the cabinet. Said air duct usually has a circular or rectangular shape and is in- stalled in the cabinet by a kitchen installer. However, in order to make the needed space available, a kitchen planner has to consider that the related space has to be provided, what com monly results in a provision of specific kitchen drawers, which are shortened compared to standard drawers. Naturally, such shortened kitchen drawers can also provide only a respectively reduced storage space.
It is an object of the present invention to provide an extrac tion device according to the preamble of claim 1, which prevents a reduction of storage space in a cabinet in case of an imple mentation of an extraction system therein. It is a further ob ject of the present invention to provide an extraction system with optimized transmitting exhaust air provided for optimized
blowing out and with simplified maintenance, in particular with regard to filter means. In addition, it is an object of the pre sent invention to provide a combination appliance with such an extraction system. Further, it is an object of the present in- vention to provide a system with a cabinet and such an extrac tion system. Moreover, special solutions for the cabinet and its interior equipment shall be avoided, particularly by making less expensive standard equipment usable also in case of an extrac tion system has to be accommodated in the cabinet. It is a fur- ther object of the present invention to provide a cabinet, in particular a kitchen cabinet, with a construction providing greatest possible storage space, which storage space is specifi cally not reduced in the situation of an installation of an ex traction system.
The object is achieved by an extraction system for removing air from an area above a cooking hob according to the features of claims 1 and 16. The extraction system includes an extraction device and an outlet air channel. The extraction device com- prises an inlet opening for an air intake into an interior of the extraction device, a conduction means for conducting the air through the interior of the extraction device and an outlet con nection piece connected to a channel input of the outlet air channel. The outlet air channel is configured for transmitting exhaust air from the channel input to a channel output that is provided for blowing out the exhaust air, in particular into room air or ambient air. According to the present invention, the outlet air channel includes at least a first component or a first section of its entire length with a cross-sectional area and/or a passage area for air passage, which cross-sectional area and/or passage area extends or extend in a first direction and in a second direction orthogonally to the first direction,
wherein the ratio of the extension or dimension in the first di rection to the extension or dimension in the second direction is at least 3 to 1, preferably at least 5 to 1, more preferably at least 10 to 1.
The key aspect of the solution according to the present inven tion is based on the consideration that reducing the depth of the outlet air channel of the extraction system arranged inside the cabinet can prevent a loss of storage space in the cabinet, specifically when a provision of shortened drawers for the cabi net can be avoided that way. Moreover, as a compensation for the reduction of the channel depth, the channel width may be in creased in order to provide a sufficient cross-section for an unhindered airflow. More specifically, by providing a ratio of at least 3 to 1 between a first dimension and a second dimension orthogonally to the first dimension of the channel cross-section in at least a first section or component of the outlet air chan nel, particularly situated in a cabinet area that is commonly used as storage space, the depth of the outlet air channel is notably reduced, i.e. a flatter outlet air channel is provided, so that a loss of storage space in the cabinet due to the outlet air channel installation is minimized and particularly drawers having a significant length, especially standard drawers, may be used.
The air removed from the area above the cooking hob is particu larly heated air and the air may comprise cooking vapours. The extraction device is particularly an extraction hood for the ex traction of cooking vapours. More particularly, the extraction device is a downdraft extraction hood, which is implemented in the cabinet, particularly below and specifically attached to the cooking hob.
The extraction device preferably further comprises a fan for sucking in the air, notably the cooking vapours, from the area above the cooking hob. Said fan is arranged in or is in opera tive connection with the conduction means. The extraction device especially includes also a filter means for filtering out parti cles and droplets of the cooking vapours, in that performing an air-recycling process. The conduction means is particularly an air duct. The outlet air channel design may be characterized by any arbi trary flat shape of construction, but in particular the cross- sectional area or passage area of the outlet air channel is rec tangular or oval-shaped. The first component or first section is particularly positioned or positionable at least close to at least one wall of a cabinet for accommodating the extraction system. More specifically, the component or section is attached or attachable to or positioned or positionable adjacent to the at least one wall. This specifi- cally supports the space utilization to an even greater extent, since unnecessary loss of space is avoided by moving even closer to the wall, notably by reducing the distance to the wall to zero. The first component or first section may be attached to or posi tioned or positionable adjacent to an inner surface of the wall, so that the first component or first section is arranged in the cabinet interior. Alternatively, the first component or first section may be attached to or positioned or positionable adja- cent to an outer surface of the wall, which will further in crease the storage space of the cabinet, since the entire cabi net depth of a standard cabinet is provided that way. However, due to the outer arrangement of the first component or first
section, the outlet air channel needs to penetrate the wall and a respective cutout has to be implemented by a kitchen in staller . Additionally, or alternatively, said first component or first section forms or is designed or configured to form at least a part of at least one wall of the cabinet. By eliminating the wall or a respective part of the wall the possibility is opened to even further move the first component or first section out- wards and to arrange the first component or first section at the wall location, so that even more storage space is gained in the cabinet .
More specifically, the at least one wall is at least one of a side wall, a rear wall and a bottom wall of the cabinet. The se lection of the most suitable wall may particularly depend on the design of the extraction device, notably the respective arrange ment of its outlet connection piece, or it may depend on the po sitioning or fixation of interior equipment.
Preferably, the first component or first section or a wall ele ment comprising the first component or first section is designed and/or configured for replacing a wall of a standard cabinet. That means, a standard cabinet, e.g. a standard kitchen cabinet, may be selected by the kitchen planner without having to con sider the installation of the extraction system therein. Only the kitchen installer has to consider that, however, this person anyway needs to install the outlet air channel, which is merely different but not necessarily more elaborate than with the in- stallation of outlet air channels according to the state of the art. Moreover, a particularly preferred choice of a suitable wall is the rear wall of the cabinet. The positioning of an out let air channel according to known solutions is back-mounted as
one favourite solution. Therefore, when selecting the rear wall for being replaced by the first component or first section of the outlet air channel, there is no need for a redesign of known or standard applications, especially of the extraction device, when implementing the outlet air channel according to the pre sent invention. In a similar way, it is also known to guide the airflow from a back to the front, specifically by an end section of the outlet air channel, for a frontal air discharge. To this end, also the bottom wall may be a suitable object for serving at least partly as a channel. Furthermore, a particularly ad vanced solution according to the present invention provides for an implementation of the first component or first section of the outlet air channel both in the rear wall and in the bottom wall of the cabinet, which may particularly be the result of a re- spective special designing of the cabinet.
A particularly specific embodiment is characterized in that the first component or first section or the wall element comprising the first component or first section forms a replacement of the rear wall of a standard cabinet and comprises at least one lat erally arranged tongue configured for being inserted in a groove of a side wall of the cabinet. Said groove for receiving the laterally arranged tongue is particularly the groove provided for a standard cabinet rear wall. More specifically, the tongue is integrally designed with the first component or first section or the wall element comprising the first component or first sec tion. An even more preferred solution provides for an arrange ment of tongues both at the left side and at the right side of the first component or first section or the wall element com- prising the first component or first section. This results in an integration in the same way as a standard rear wall, namely by retaining the first component or first section or the wall ele ment comprising the first component or first section inside of
the grooves in the side walls of the cabinet by means of the tongues on the left side and the right side, hence, forming tongue and groove connections. As an alternative to the aforementioned integral design, the first component or first section or the wall element comprising the first component or first section may comprise at least one laterally arranged groove configured for receiving a first lat eral edge of a tongue. A second lateral edge, which is opposite to the first lateral edge, of the tongue is configured for being inserted in a groove of a side wall of the cabinet, particularly in the groove provided for standard cabinet rear wall, specifi cally in the case of said standard cabinet rear wall being re placed by the first component or first section or the wall ele- ment comprising the first component or first section during the kitchen installation process. That way, the tongue, on the one hand, and the first component or first section or the wall ele ment comprising the first component, on the other hand, are pro vided as separate elements. This modular conception particularly facilitates adaptation to specific applications, notably cabinet applications .
In order to allow an easy implementation in a cabinet, espe cially a commercial cabinet, of an arbitrary width, the first component or first section or the wall element comprising the first component or first section may be adaptable to the width of the cabinet by adjusting the width of the tongue. Said adap tion is particularly performed by a tongue that is designed in that its lateral extension is reducible, specifically by longi- tudinally cutting the tongue.
Said tongue, being a component separate from the first component or first section or the wall element comprising the first compo nent or first section, may not even be a specifically designed component. In fact, the construction of the first component or first section or the wall element comprising the first component or first section may allow the use of the standard rear wall to be replaced as a provider for the creation of the tongue, nota bly on-site, i.e. by the kitchen installer during the kitchen implementation process. This can be realized in that the kitchen installer cuts off a section, i.e. a strip, of the standard rear wall, resulting in the provision of in individually designed and adjusted tongue. Naturally, a second tongue, preferably of the same dimensions, may be produced in the same way in order to get tongues for an application at left and right sides.
One specific embodiment as regards material selection provides a first component or first section or wall element comprising the first component or first section, which is designed as a metal lic component. A preferred selection therefore is aluminium. This type of metallic material is particularly suitable for a lightweight design, and it is easily formable. More specifi cally, a manufacturing by an aluminium extrusion is an advanta geous manner of preparation. Alternatively, the first component or first section or wall element comprising the first component or first section may be designed as a plastic component, which may be manufactured by an injection moulding, a blow moulding or a plastic extrusion process.
A further enhanced embodiment with an even further increased adaptability is provided in that the first component or first section or the wall element comprising the first component or first section is manufactured with an excess length of arbitrary longitudinal dimension and adaptable to the length required for
each specific application. Said adaptation to the specific ap plication is preferably executed by cutting a product resulting from an open length production to the required length. In this context a product manufactured by continuous casting process may be favourable.
According to an embodiment, the first component or first section or the wall element comprising the first component or first sec tion includes at least one supporting rib keeping opposite chan- nel walls at a distance from each other. A single supporting rib is particularly centrally arranged and at least two supporting ribs may be evenly distributed over the lateral extension. Said at least one supporting rib may be favourable with regard to a prevention of the opposite walls to converge, hence causing a reduction of the channel cross-section. Moreover, also a bal looning effect can be prevented with said supporting rib, which effect may occur because of an excess pressure caused by the op eration of the fan of the extraction device along with a slowed air discharge.
The first component or first section or the wall element com prising the first component or first section may be connected or connectable to a deflection element, which connection is ar ranged at its top end. Alternatively, the deflection element may be arranged or arrangeable at the bottom end of the first compo nent or first section or of the wall element comprising the first component or first section. A specifically preferred solu tion is characterized by a first and a second, i.e. an upper and a lower, deflection element connected to both the top and the bottom ends of the first component or first section or of the wall element comprising the first component or first section. Such a deflection element is designed to provide or configured for providing a redirection of the airflow of the transmitted
exhaust air by at least approximately 90 degrees. Top and bottom ends in the context of the present solution may mean a channel entry and exit. Such kind of redirection may be a horizontal to vertical deflection and/or vice versa.
A specific embodiment of the present invention is characterized in that the outlet connection piece of the extraction device has a cross-section compatible to the cross-section of the channel input of the outlet air channel. This is favourable at least for the deflection device at the top end of the first component or first section or of the wall element comprising the first compo nent or first section. That way, an easy connection, specifi cally by means of a slide-in connection, is realizable. Alterna tively, an adapter piece may be interposed between the outlet connection piece and the channel input of the outlet air chan nel, which adapter piece is designed to perform a cross-section adjustment between the outlet connection piece and the channel input of the outlet air channel. Using such an adapter piece may render it unnecessary to modify existing extraction devices, such as those ones that are combined with common, i.e. state of the art, outlet air channels.
According to a first specific embodiment related to the air dis charge, the channel output of the outlet air channel is spaced or configured or designed to be spaced from a plinth area, in particular from a plinth panel arranged in the plinth area, of the cabinet with a distance of at least 5 cm, preferably at least 10 cm, more preferably at least 20 cm, most preferably at least 30 cm. With such an arrangement, the exhaust air is dis- charged in the base area of the cabinet, may be distributed over the entire width of the base area of a kitchenette and may re turn to the entire room via gaps and openings provided by a non- sealed plinth panel. Moreover, a horizontally aligned second
component or second section of the outlet air channel, which second component or second section forms an end element of the outlet air channel, may be arranged downstream of, and may be connected to, the first component or first section. More specif- ically, the second component or second section may be arranged or arrangeable, preferably connectable also by means of a slide- in connection, downstream of the deflection element at the bot tom end of the first component or first section. In general, all components of the outlet air channel may be interconnectable by means of said slide-in connection.
According to a second specific embodiment related to the air discharge, the channel output is positioned or designed or con figured to be placed closer to the cabinet front. Anyway, as with a preferred embodiment of the solution according to the first specific embodiment above, the outlet air channel com prises a horizontally aligned or alignable second component or second section, which is particularly arranged downstream of the first component or first section, more particularly downstream of the deflection element at the bottom end of the first compo nent or first section.
According to a first aspect, the second component or second sec tion is arranged or arrangeable below a bottom wall of the cabi- net extending to a frontal plinth area of the cabinet. More spe cifically, the second component or second section particularly extends or is designed or configured to extend to a plinth panel arranged in the plinth area. Said plinth panel preferably com prises an opening for air passage and the channel output may open out into said opening. In particular, the second component or second section includes a bypass channel arrangement, which preferably performs an airflow split, for leading the airflow
past a cabinet foot. In this case, a specifically preferred de sign for the second component or second section is approximately "Y"-shaped in a top view. The outlet air channel may penetrate or may be configured to penetrate a rear section of the bottom wall of the cabinet or, alternatively, the bottom wall may be shortened or designed to be shortened, e. g. by cutting, in or der to provide connection possibility between first and second components or sections, i.e. a non-obstructed installation space for the entire outlet air channel.
According to a second aspect, which is an alternative to the first aspect above, the second component or second section is guided or is configured to be guided alongside a top side of a bottom wall of the cabinet, i.e. in the interior of the cabinet. Then, the channel output may also be arranged in the cabinet in terior. Preferably, however, the exhaust air is discharged out side of the cabinet in order to avoid a humid environment in the cabinet interior. For such leading to the outside, an end sec tion of the second component or second section may penetrate or may be configured to penetrate a fixed front panel of the cabi net. However, said fixed front panel limits the frontal access to the cabinet, therefore, a preferred solution is characterized by an end section of the second component or second section, which is guided or configured to be guided through a front sec- tion of the bottom wall, specifically in vertical direction, de signed for performing a vertical air discharge.
According to a specific embodiment, which significantly differ entiates from the afore-mentioned embodiment in the location of air discharge, the outlet air channel penetrates or is config ured to penetrate a kitchen worktop or a cooking hob panel providing an air discharge above the kitchen worktop or cooking
hob panel, preferably with a channel output spaced from or con figured to be arranged spaced from the kitchen worktop or cook ing hob panel. But indeed, also this specific solution comprises any flat channel arrangement and also the worktop penetration and optionally also the channel output may be characterized by an elongated design.
A further general aspect of the present invention in order to achieve the object relates to an extraction system for removing air in particular heated air, from an area above a cooking hob, which air particularly comprises cooking vapours, the extraction system comprising an extraction device, particularly an extrac tion hood, more particularly a downdraft extraction hood, and an outlet air channel the extraction device comprising an inlet opening for an air intake into an interior of the extraction de vice, a conduction means, particularly an air duct, for conduct ing the air through the interior of the extraction device, pref erably a fan for sucking-in the air from the area above the cooking hob, the fan being arranged in or being in operative connection with the conduction means, and an outlet connection piece connected to a channel input of the outlet air channel, wherein the outlet air channel is configured for transmitting exhaust air from the channel input to a channel output provided for blowing out the exhaust air, in particular into room air or ambient air, the extraction system in particular being designed or configured according to anyone of the embodiments or examples described herein.
The extraction system is characterized in that the outlet air channel includes at least a first component or a first section comprising or being connected to the channel output, wherein the first component or the first section is at least partially mova ble mounted and/or movable configured to adjust the location or
position of the channel output with reference to the cooking hob, preferably dependent on at least one parameter.
Hence, the at least first component or the first section is con- figured for connection with the channel output. Further, the first component or the first section is configured for at least partial movement to adjust the location or position of the chan nel output with reference to the cooking hob, preferably depend ent on at least one parameter.
With the extraction system of the invention, it is possible, for example, that a fume extraction rate can be adjusted addition ally via the first component or the first section, preferably maximized by the adjustment of the height of the exhaust device.
In other words, it is possible that the first component or the first section is configured extendable and/or retractable which results in a variable adjustability of the channel output of the extraction system with reference to a cooking hob, preferably to a worktop and/or a kitchen countertop.
Hence, the extraction system provides, for example, a variable guidance of the respective airflow, i.e. airflow of the trans mitted exhaust air from the channel input.
Further, the exhaust system provides for an adjustability of the location or position, for example the height, of the channel output with reference to the cooking hob, preferably the inlet opening of the extraction device and/or the cooking hob panel of the cooking hob.
It is possible that the at least one parameter may be at least one predetermined parameter and/or at least one detected parame ter such as a setting of the fan, for example provided by a user or predetermined automatically, a flowrate on exhaust air to be blown out, humidity, temperature or the like.
The first component or first section may be translationally (translatory) movably mounted at least close to at least one wall or to an outer side of at least one wall of a cabinet, in particular kitchen cabinet, for accommodating the extraction system. Preferably, the first component or first section may be movably mounted essentially translationally to at least one wall of the cabinet. The at least one wall may be, for example, at least one of a side wall and/or a rear wall of the cabinet, in particular kitchen cabinet.
It is possible that the channel output may have a cross-sec tional area and/or a passage area through which exhaust air to be blown out passes, wherein the cross-sectional area and/or the passage area can be, preferably at least in sections, particu larly rectangular or oval-shaped, wherein the cross-sectional area and/or the passage area may be variably adjustable with re spect to size, preferably dependent on the at least one parame ter.
In other words, the cross-sectional area and/or the passage area may be configured adjustable with regard to the effective cross- section of exhaust air to be blown out. It is possible, for ex ample, that an adjustable diaphragm is arranged in the cross- sectional area and/or in the passage area to further adjust the flow of exhaust air to be blown out, i.e. preferably the flow cross-section .
According to a further aspect of the present invention, it is possible that the channel output can comprise a guide element for guiding the exhaust air to be blown out in a directional manner, wherein the guide element may be variably adjustable with respect to at least one direction, preferably dependent on the at least one parameter.
The at least one guide element may be configured, for example, as a deflector or guide plate to adjust the direction of the flow of exhaust air to be blown out. The guide element may be configured for manual adjustment or, in the alternative, by a drive unit such as an electric motor, for example via a linkage mechanism connecting the deflector or guide plate with the elec tric motor.
In the alternative, the guide element may comprise at least two lamellae .
According to a further embodiment or example, the first compo- nent or the first section may accommodate or may comprise a fil ter assembly with at least one odour filter and/or at least one vapour filter being preferably insertable into the first compo nent or the first section via the channel output. The provision of a filter assembly with at least one odour fil ter and/or at least on vapour filter may further purify or clean the flow of exhaust air to be blown out, thus resulting, for ex ample, in an increased quality of the room air or ambient air. It is possible that the filter assembly, preferably at least one of the at least one odour filter and/or the at least one vapour filter, may be releasable fixed via a latch mechanism, wherein the latch mechanism may be preferably configured to be operated
manually, preferably via or in the sense of a push-pull mecha nism, for example.
According to a further embodiment or example, the extraction system may define or may comprise a receiving section, in par ticular by an outer boundary or outer wall section thereof, the receiving section can be configured to receive at least par tially a drawer, wherein the receiving section may be arranged at least partially adjacent to the extraction device, preferably to the fan.
The cooking hob may comprise a first cooking region with at least one first cooking unit and a second cooking region with at least one second cooking unit. The inlet opening may be arranged between the first cooking region and the second cooking region in such a way to enable removing air uniformly from the at least one first cooking unit and the at least one second cooking unit.
The inlet opening can comprise an essentially rectangular con- tour or an oval contour in a view, preferably in a top view. Ad ditionally, or alternatively, the inlet opening and the at least one first cooking unit and the at least one second cooking unit may be arranged essentially symmetrically with respect to a plane, preferably a plane arranged essentially perpendicular to the cooking hob.
The cooking hob may comprise an essentially rectangular contour in a view, preferably in a top view. The inlet opening, prefera bly comprising an essentially rectangular contour in a view, preferably in a top view, may extend essentially in a longitudi nal direction of the cooking hob. The longitudinal direction may be preferably the direction of the largest extension of the cooking hob. Additionally, or alternatively, the inlet opening
may be arranged essentially centrally at the cooking hob, pref erably with regard to two directions.
According to a further aspect of the present invention, at least one grease filter may be releasable fixed or releasable mounted, preferably via a latch mechanism, between the inlet opening and the outlet connection piece, preferably between the inlet open ing and the fan. The fan may be arranged in proximity of or at least adjacent to at least one wall, preferably upstream of the first component or first section. The at least one wall may be at least one of a side wall and/or a rear wall of a cabinet, in particular kitchen cabinet, for accommodating the extraction system. The at least one grease filter may be accommodated in the inlet opening, wherein the at least one grease filter may be accessi ble via a panel of the extraction device. The panel may be re leasable fixed or releasable mounted via a latch mechanism, wherein the latch mechanism can be preferably configured to be operated manually, preferably via a push-pull mechanism.
More specifically, the extraction system may comprise a drive unit driving the first component or the first section essen tially translationally, preferably at least essentially in a di- rection orthogonally to the cooking hob and/or the inlet opening and/or a worktop (cooktop plate) of the hob, more preferably es sentially orthogonally to an upper surface or wall of the cook ing hob, from a first location to a second location and vice versa. The drive unit may comprise preferably at least one mo- tor, more preferably at least one servomotor.
The first component or the first section may be connected to the drive unit via, for example, a linkage mechanism for correspond ing adjustment. The first component or the first section may be configured modularly and/or may comprise at least two flat chan- nel elements that are configured or formed to plug into each other and to extend from each other at least in sections. The first component or the first section may be arranged essentially perpendicular to the hob and/or the inlet opening, preferably in an inserted or in a retracted state.
A translationally driving of the first component or the first section may preferably a linear movement or a linear motion.
It is possible that the extraction system can comprise at least one sensor unit for detection of the at least one parameter and/or for detection of at least one property relating to the at least one parameter, wherein the at least one sensor unit can be connected to a control unit being configured to at least control the drive unit driving the first component or the first section.
The at least one parameter may be preferably a physical property such as humidity, temperature, density, average flow velocity at the channel output or the like. It is additionally or alterna tively possible that the at least one parameter can comprise preferably a chemical property such as a composition of the ex haust air to be blown out, preferably measured or determined, for example, at the channel output.
According to a specific embodiment or example, the outlet air channel, particularly the first component or the first section comprising or being connected to the channel output, may be mov able configured by means of a push-pull mechanism, preferably in a spring-loaded manner, wherein the channel output can comprise
preferably an actuating bar being configured to be operated man ually.
A further general aspect of the present invention relates to a combination appliance comprising an extraction system as dis closed herein or according to anyone of the embodiments or exam ples described above and a cooking hob (hob), wherein the cook ing hob can comprise cooking regions being preferably arranged on a left half and a right half of a worktop of the cooking hob and/or being preferably separated from each other by the inlet opening .
It is possible that the inlet opening may be arranged essen tially centrally in a first direction of the worktop and essen- tially centrally in a second direction of the worktop essen tially orthogonally to the first direction, and/or the inlet opening may have an inlet cross-sectional area, wherein the con tour and/or the size of the inlet cross-sectional area may be at least essentially similar to the contour and/or essentially sim- ilar to the size of the cross-sectional area of the channel out put in a view, preferably in a top view, and/or the inlet cross- sectional area may extend at least partially essentially paral lel to the cross-sectional area of the channel output in a di rection, preferably in an essentially longitudinal direction of the cooking hob.
According to a further aspect of the present invention, the ex traction device, preferably the fan, may be arranged below the cooking hob and at least spaced from the inlet opening, prefera- bly at least in a top view or at least in a bottom view of the cooking hob.
This provides, for example, further space needed for a drawer.
The object is also achieved by a system comprising a cabinet, in particular a kitchen cabinet, and an extraction system according to anyone of the embodiments described above.
The object is further achieved by a cabinet, in particular a kitchen cabinet, comprising at least one hollow wall or compris ing at least one wall that is replaceable by a hollow wall. The hollow wall comprises at least one inlet for introduction of air and an outlet for blowing-out the introduced air or for blowing into an exhaust channel. The cabinet in particular accommodates the extraction system according to anyone of the embodiments de scribed above or a combination appliance according to anyone of the embodiments or examples described above or disclosed herein.
In particular, the introduced air is heated air and the air may comprise cooking vapours. More specifically, the air may be blown out into room air or ambient air. A further aspect of the present invention relates to a method for operating an extraction system as disclosed herein or ac cording to anyone of the embodiments or examples described above. The method is characterized in that the outlet air channel in cludes at least a first component or a first section comprising or being connected to the channel output. The first component or the first section is at least partially movable mounted and/or movable configured and the location of the channel output is ad- justed with reference to the cooking hob, preferably dependent on the at least one parameter.
It is possible that the first component or the first section is driven essentially translationally by a drive unit of the ex traction system, preferably at least in a direction essentially orthogonally to the cooking hob from a first location to a sec- ond location or position and vice versa and/or dependent on the at least one parameter.
The channel output may comprise a cross-sectional area and/or a passage area through which exhaust air to be blown out passes. The cross-sectional area and/or the passage area may be variably adjusted with respect to size, preferably dependent on the at least one parameter.
The channel output may comprise a guide element for guiding the exhaust air to be blown out in a directional manner, wherein the guide element can be variably adjusted with respect to at least one direction, preferably dependent on the at least one parame ter. It is further possible that the operating status of the fan, for example the rotational speed of a propeller of the fan, may be adjusted dependent on the at least one parameter.
In order to avoid further repetition, features which are purely directed to the extraction system and/or to the extraction de vice according to the present invention and/or disclosed in con nection therewith should also be considered as disclosed accord ing to the method for operating an extraction system and be claimable and vice versa.
Novel and inventive features of the present invention are set forth in the appended claims.
The present invention will be described in further detail with reference to the drawing, in which
Fig. 1 is a perspective sketch view of a combination appliance comprising a cooking hob and a downdraft extraction de vice installed in a kitchen cabinet according to a prior art solution;
Fig. 2 is a schematic side view of a combination appliance ac cording to the invention with a side wall removed;
Fig. 3 is a perspective view of a rear wall of the combination appliance according to Fig. 2 with integrated air channel and related top and bottom deflection elements;
Fig. 4 is a detailed view of a side area of the rear wall with a modified affixing of a connection tongue;
Fig. 5 is an illustration of the combination appliance of Fig.
2, but with modified end section of an outlet air chan nel; and
Fig. 6 is a schematic top view of the base section of the combi nation appliance of Fig. 5 along the line VI - VI;
Fig. 7 is a schematic view of an example of a combination appli ance according to the invention comprising a cooking hob and an extraction system with an extraction device;
Fig. 8 is a schematic illustration of the combination appliance of figure 7 being installed in a kitchen cabinet;
Fig. 9 is an illustration of a section of the first component of an example of the extraction system according to the in vention;
Fig. 10 is an illustration of a section of the first component of a further example of the extraction system according to the invention.
Fig. 1 illustrates by way of a schematic diagram a combination appliance 10 comprising a cooking hob 12 and a downdraft extrac tion device 14 installed in a kitchen cabinet 16 according to a prior art solution. The cooking hob 12 is implemented in a cut out of a kitchen countertop 18 forming a top cover plate of the kitchen cabinet 16. The downdraft extraction device 14 is con figured to take away cooking vapours occurring during cooking processes, in particular when cooking with uncovered cookware.
The cooking hob 12 comprises cooking regions 20a, 20b arranged on a left half and a right half of a worktop 22 of the cooking hob 12, which left and right halves are separated from each other by a suction opening 24 for an intake of the cooking va pours, the suction opening 24 being arranged alongside a worktop centreline. The suction opening 24 is covered by a cover grid 26 for preventing items, e.g. cookware, to fall into the suction opening 24. Instead of the cover grid 26 a lid may be used for entirely covering the suction opening when the extraction device 14 is out of use, but for the operation of the extraction device 14 the lid is pivotable into an upright open position.
A casing 28 of the extraction device 14 is shown in Fig. 1 with a front wall thereof being removed, so that the interior is vis ible. Said casing 28 provides a closed outer shell or an inner channel for a flow of the sucked-in cooking vapours on their way from the suction opening 24 to an exhaust opening 30 in a base
area 32 of the kitchen cabinet 16. Said exhaust opening 30 is also covered, namely by an outlet grille 34.
The flow of the sucked-in cooking vapours through the extraction device 14 is driven by the operation of an extraction fan 36 ar ranged inside of the casing 28. Said extraction fan 36 comprises a bottom-sided intake opening 38 for sucking the cooking vapours from the interior space of the casing 28. As not illustrated in detail by Fig. 1, a rear-sided fan outlet is arranged for a horizontal exit of the air blown out backwards from the extraction fan housing 42. The fan outlet is connected to a first end of an air duct 44 designed as a rectangular tube, which forms an outlet air channel arranged downstream the fan outlet. Directly at the passage from the fan outlet to the air duct 44, an air duct bending by 90 degrees is implemented, which redirects the air flow from horizontal to vertical downwards.
The air duct 44 is guided alongside a rear wall 40 of the kitchen cabinet 16 and is bent again by 90 degrees close to a rear lower edge of the kitchen cabinet 16 in order to direct the airflow towards exhaust opening 30 in the base area 32 of the kitchen cabinet 16. Accordingly, the second end of the air duct 44 is connected to the exhaust opening 30. The embodiment illus trated in Fig. 1 shows a solution of the air duct 44 with an in- d ined section of its downwardly directed portion, directed slightly to the right. A solution with said portion arranged in an exact vertical direction is known as well.
The course of the cooking vapours from the cooking area through the extraction device 14 to a re-entry into ambient air is il lustrated in Fig. 1 by dotted arrows 461 to 465. On their way through the extraction device 14, the cooking vapours pass
through a filter assembly 48, which is arranged downstream di rectly behind the suction opening 24.
As can be understood from the illustration of Fig. 1, the air duct 44 reduces the storage space of the kitchen cabinet 16.
This space reduction is particularly notable in the case of the kitchen cabinet 16 being equipped with drawers. In that case, said drawers have to be provided in a shortened version, whereby the shortening has an impact on space reduction over the entire width of the kitchen cabinet 16, if no custom solution will be chosen for said drawers.
Fig. 2 is a schematic side view of a combination appliance 10 according to the present invention with a side wall of the com- bination appliance 10 removed. Although only a schematic illus tration is presented by Fig. 2, the combination appliance 10 generally comprises all the technical equipment as that one of the combination appliance 10 of the prior art as illustrated with Fig. 1.
The combination appliance 10 of Fig. 2 essentially differs from the prior art embodiment according to Fig. 1 in the outlet air channel 50, which replaces the air duct 44 used in the prior art combination appliance 10. A further difference is the exhaust opening 30, which is moved back from a front section of the base area 32 to a middle area along with a related outlet grille 34, which may also be omitted. This measure avoids the need of providing a cutout in a plinth panel 52, as is not illustrated in Fig. 1 but usually realized in real life. As a consequence of said re-positioning of the exhaust opening 30 according to Fig. 2, the exhaust air is not blown out directly into the kitchen space but distributes over the base area of the kitchenette, which includes the kitchen cabinet 16, before entering the
kitchen space via an elongated gap 54 between the plinth panel 52 and a bottom wall of the cabinet 16.
The entire outlet air channel 50 is an assembly group of several component parts, some thereof being illustrated in Fig. 3 sepa rated from each other in an enlarged perspective view. Exhaust air leaves the casing 28 via a connection pipe 56, which is con nected to an outlet port of the fan housing (42, not shown in Fig. 2). Following the connection pipe 56 in downstream direc- tion, an upper channel deflection element 58a effects a redirec tion of the airflow conducted in the entire outlet air channel 50 from a horizontal to a vertical direction. Further down stream, a vertical flat channel element 60 is connected to the channel deflection element interface, which interface opens in vertical direction. At the lower rear edge of the cabinet 16, the outlet air channel 50 continues with a lower channel deflec tion element 58b, which is connected to the lower interface of the vertical flat channel element 60 and provides another air flow deflection redirecting the airflow from vertical to hori- zontal, directed to the front side of the cabinet 16. Finally, the outlet air channel 50 ends with a horizontal channel end el ement 62 that opens out into the atmosphere, i.e. the room air or ambient air, with its exhaust opening 30. As can be seen more in detail in Fig. 3, the flat channel ele ment 60 as well as the related channel deflection elements 58a, 58b are designed as elongated components, which extend horizon tally over the entire width of the cabinet 16. Due to the wide construction of e. g. the flat channel element 60, its depth can be minimized compared to the air channel 44 of the prior art so lution according to Fig. 1 in order to keep both cross-sectional surfaces at the same level, with e. g. avoiding the risk of re ducing the airflow volume. As a result of the depth reduction
compared to the prior art solution, the loss of space in the cabinet 16 as a result of air duct installation can be mini mized. The vertical flat channel element 60 may be designed to be at tachable to the rear wall 40 of the cabinet. However, another and even more space saving solution can be also seen in Fig. 3. In fact, the flat channel element 60, which has an elongated rectangular cross-section, comprises tongues 64 at its left and right side walls, which are configured to join corresponding grooves (not shown) arranged at the rear side of the left and right side walls of the cabinet 16. Said grooves are particu larly usually arranged in said side walls of standard cabinets providing a joint by insertion for a rear wall 40, which is not only provided for closing the cabinet 16 on the back but also ensures stability of the cabinet construction.
The flat channel element 60 along with its attached tongues 64 is designed such that it can replace a standard rear wall of the cabinet 16, either immediately with the production of the cabi net 16 or at the moment of installation of the cabinet 16 in a kitchenette, what usually walks along with the implementation of the combination appliance 10 in the cabinet 16. In the latter case, the kitchen installer removes the standard rear wall 40 from its position by decoupling their left and right lateral edges from the grooves of the left and right side walls of the cabinet 16. Subsequently, the outer edges of the tongues 64 of the vertical flat channel element 60 are inserted in the vacant grooves, in that not only rebuilding a stable cabinet by imple- menting the stabilizing replacement for the rear wall 40, but also arranging one component of the entire outlet air channel 50 at its final place. Thereafter, the kitchen installer may finish the outlet air channel 50 by connecting the other elements 58a,
58b, 62 to the vertical flat channel element 60. Finally, the outlet air channel 60 is ready to be connected to the connection pipe 56 of the casing 28 of the extraction device 14. All components of the outlet air channel 50, in particular the vertical flat channel element 60 and its tongues 64 may be made of a plastic material. Further, the tongues 64 of the vertical flat channel element 60 according to Fig. 3 are integrally formed with the side walls of the flat channel element 60.
Fig. 4 shows a detail view of an alternative embodiment of one of the tongues 64. In contrast to the embodiment of Fig. 3, the tongue 64 of the alternative embodiment is not fixedly arranged at the side wall of the vertical flat channel element 60, in fact, the tongue 64 is designed as elongated strip comprising first and second lateral edges 64a, 64b, wherein the first lat eral edge 64a is intended to be inserted in a groove 66 provided at the side wall of the vertical flat channel element 60. With the first lateral edge 64a being inserted, the entire assembly is congruent with the embodiment according to Fig. 3 and the second lateral edge 64b of the tongue 64 is provided for its in sertion in the groove of the assigned side wall of the cabinet 16. The separate tongue 64 according to the embodiment of Fig. 4 can be a specially fabricated accessory of the outlet air channel 50. Preferably however, the tongue 64 is individually manufac tured by the kitchen installer by cutting off respective strips from the standard rear wall of the cabinet 16. That way, the ac- tually needed width can first be measured from the present cabi net 16, so that tailored tongues 64 can be made available.
As illustrated by Fig. 3, the replacement of the standard rear wall 40 by the vertical flat channel element 60 keeps an upper section of the reverse side of the cabinet 16 open. This, how ever, is just a matter of design rather than providing any sta- bility problems for the cabinet 16. Depending on individual preference, the open area can be closed by means of another sec tion cut from the standard rear wall 40.
As earlier mentioned, the embodiment according to Fig. 2 differs from the prior art solution of Fig. 1 in the positioning of the exhaust opening 30. With Fig. 5 a solution according to the pre sent invention is illustrated, which, as regards the location of air discharge, is similar to the known solution. This concerns an extension of the channel end element 62, which is extended up to the front of the base area 32, so that its final section pen etrates the plinth panel 52 and defines an exhaust opening 30 at the front face of the plinth panel 52, preferably covered by an outlet grille 34. The exhaust opening 30 and a respective outlet grille 34 may ex tend over nearly the entire cabinet width. If, however, the structure of the cabinet 16 requires a foot 68 arranged cen trally at the front of the base area 32, besides the usual feet at the four corners of the cabinet base, the channel end element 62 has to be designed as a bypass channel arrangement 70 as shown by Fig. 6, which is a top view of the base area 32 of the cabinet 16 according to Fig. 5. As illustrated, the bypass chan nel arrangement 70 is approximately "Y"-shaped with a channel input 70a on the rear side of the cabinet 16 and two channel outputs 70b that are horizontally spaced from each other by cir cumventing the central cabinet foot 68 and by splitting up the airflow that enters the channel end element input 70a over the
whole cabinet width and focussing towards the two smaller chan nel outputs 70b for air discharge. In order to prevent increased dynamic pressure in the interior of the bypass channel arrange ment 70 due to a reduction of the total cross-sectional surface caused by said split-up, the height of the two channel end ele ment outputs 70b may be increased in order to compensate said reduction of the total width.
Fig. 7 illustrates a schematic side view of an example of a com- bination appliance 10 according to the invention comprising a cooking hob 12 and an extraction system for removing air, in particular heated air, from an area above the cooking hob 12, which air particularly comprises cooking vapours. The cooking vapours may be, for example, generated during a cooking process by the content of a cooking vessel (see figure 8) being arranged and heated at the cooking hob 12.
Fig. 8 illustrates schematically the combination appliance 10 as schematically shown in figure 7 in a mounted or installed condi- tion. The combination appliance 10 as illustrated in figure 8 is installed and/or accommodated on a kitchen cabinet 16 with a kitchen countertop 18.
The kitchen cabinet 16 comprises several drawers from which drawer 17 is illustrated in figure 8. The drawer 17 is mounted directly under the kitchen countertop 18, for example in a known manner, and thus under the worktop 22 of the cooking hob 12 and can be moved, i.e. pulled out accordingly. The cooking hob 12 comprises a worktop 22 with cooking regions 20a, 20b. Further, an inlet opening 24 is arranged at the work top 22 which will be described in further detail below. With re gard to the illustration in figure 8, the worktop 22 is arranged
or mounted on the kitchen countertop 18 of the kitchen cabinet 16. The cooking regions 20a, 20b of the cooking hob 12 are ar ranged in a matrix configuration on a left half and right half of the worktop 22. Moreover, the cooking regions 20a, 20b are separated from each other by the inlet opening 24.
The extraction system comprises an extraction device 14. The ex traction device 14 is at least in sections configured as an ex traction hood in the form of a downdraft extraction hood. The extraction device 14 comprises the suction opening, i.e. the in let opening 24 for an air intake into an interior of the extrac tion device 14. The inlet opening 24 may be arranged essentially centrally in a first direction of the worktop 22 and essentially centrally in a second direction of the worktop 22 orthogonally to the first direction. The first direction may be the longitu dinal direction which is indicated by a double arrow in figures 7 and 8 and labelled with "X". The longitudinal direction X may be preferably the direction of the largest extension of the cooking hob 12 and/or the worktop 22. The inlet opening 24 may comprise an inlet cross-sectional area that is, for example, es sentially rectangular-shaped. It is alternatively possible that the inlet cross-sectional area of the inlet opening 24 comprises a different shape or contour. The extraction device 14 further comprises a conduction means, particularly an air duct, i.e. outlet air channel 50 for con ducting the air through the interior of the extraction device 14 and a fan (not visible in figures 7 and 8) for sucking-in the air from the area above the cooking hob 12 via the inlet opening 24.
The extraction device 14, preferably the fan, is arranged below the cooking hob 12 and thus the worktop 22 and at least spaced
from the inlet opening 24, preferably at least in a top view or at least in a bottom view of the cooking hob 12, at the rear end or close to a rear wall of the kitchen cabinet 16 in order to provide the needed space for the drawer 17.
It is clear that the fan is arranged or in operative connection with the conduction means, i.e. the outlet air channel 50. The extraction device 14 further comprises an outlet connection piece 56 that is connected to a channel input of the outlet air channel 50 (see figure 7). The outlet air channel 50 is config ured for transmitting exhaust air from the channel input to an exhaust opening, i.e. channel output 30. The channel output 30 is provided for blowing out the exhaust air, in particular into room air or ambient air.
The outlet air channel 50 comprises or is connected to a first component 60 in the form of a vertical flat channel element 60. As it can be retrieved from figures 7 and 8, the first component 60 extends accordingly in the longitudinal direction X and is arranged at an edge section of the worktop 22 of the cooking hob 12. The first component 60 comprises the channel output 30. The first component 60 is at least partially movable mounted and/or at least movable configured to adjust the location or position of the channel output 30 with reference to the cooking hob 12 and/or with reference to the worktop 22 and/or with reference to the inlet opening 24.
In other words, the first component 60 is configured for at least partial movement to adjust the location or position of the channel output 30 with reference to the cooking hob 12, prefera bly with reference to the worktop 22 and/or with reference to the suction opening 24. The first component 60 is mounted ac cordingly at least in sections below the worktop 22, for example
via a rail mechanism 130 which is merely indicated schematically in figure 7, in order to move out and to move in essentially perpendicularly to the worktop 22 and/or essentially perpendicu larly to the kitchen countertop 18 (indicated by a double arrow and labelled with "Y"). The kitchen countertop 18 and/or the worktop 22 is configured essentially flat and/or plate-shaped.
Alternatively, the first component 60 can be accommodated or ar ranged accordingly at least partially extendable in a further component of the outlet air channel 50 being configured as a vertical flat channel element. It is also possible in the alter native, that the first component 60 comprises or is connected to an extendable and collapsible bellows structure in a further ex ample of the invention. The bellows structure may be further connected to the housing of the fan or to the outlet connection piece 56 (see figure 7) of the extraction device 14. The bellows structure allows a flexible guidance of the exhaust air to be blown out when the first component 60 is adjusted, i.e. moved accordingly with reference to the cooking hob 12.
The first component 60 may be configured to be driven by a drive unit 120 of the extraction system such as an electric motor or servomotor. It is possible that, for example, a linkage mecha nism is further used for driving the first component 60 via the drive unit 120, i.e. the electric motor. The electric motor may be controlled accordingly by a control unit 90 in dependence of at least one parameter. The drive unit 120 drives the first com ponent 60 translationally preferably in the direction Y, i.e. essentially perpendicularly to the cooking hob 12 from a first location or position to a second location or position and vice versa. The at least one parameter may be at least one detected parameter being detected by a sensor unit 110 and/or at least
one predetermined parameter, for example retrieved from the con trol unit 90. The at least one parameter may be and/or may com prise, for example, a measured or detected flowrate on exhaust air to be blown out, a rotational speed of the fan, an average temperature above the cooking regions 20a, 20b, and/or a humid ity or the like. The sensor unit 110 may be connected to the control unit 90 for signal communication in order to control the fan via the control unit 90 accordingly.
As it can be further retrieved from figure 7, the extraction system defines or comprises a receiving section 100, in particu lar by an outer boundary or outer wall section thereof. The re ceiving section 100 is configured to receive at least partially the drawer 17 (see figure 8). The receiving section 100 is ar ranged at least partially adjacent to the extraction device 14, preferably to the fan .
Fig. 9 illustrates schematically a section of the first compo nent 60 in the form of a flat channel element. The channel out put 30 has or comprises a cross-sectional area 31 through which exhaust air to be blown out passes. The cross-sectional area 31 is essentially rectangular-shaped. As it can be retrieved from figure 9, the cross-sectional area 31 is variably adjustable with respect to size, preferably dependent on the at least one parameter. The adjustment of the cross-sectional area 31 is re- alized by a guide element 33 in the form of a lamella. The guide element 33 allows guiding the exhaust air to be blown out in a directional manner. It is possible that the guide element 33 is variably adjustable with respect to at least one direction (in dicated by arrows in figure 9), preferably dependent on the at least one parameter.
Hence, it is possible via the first component 60 to adjust the location or position of the channel output 30 with reference to
the cooking hob 12 and further the direction of flow of the ex haust air to be blown out via the channel output 30. In other words, the exhaust air to be blown out can be guided accordingly via the guide element 33 in a corresponding direction. Alterna- tively, it is possible that several guide elements 33 in the form of lamellae are provided at and/or in the channel output 30 of the first component 60.
As regards the first component 60 and as illustrated schemati- cally in figure 10, it is further possible that the first compo nent 60 accommodates a filter assembly 80 with at least one odour filter and/or at least one vapour filter being preferably insertable into the first component 60 via the channel output 30.
The at least one odour filter and the at least one vapour filter of the filter assembly 80 may be configured, for example, essen tially flat and/or plate-shaped such that an insertion into the first component 60 can be ensured.
It is possible that at least one of the at least one odour fil ter and/or of the at least one vapour filter of the filter as sembly 80 is releasable fixed or releasable mounted inside the first component 60 via a latch mechanism (not visible in the figures) . The latch mechanism is preferably configured to be op erated manually, preferably via a push-pull mechanism as known from the prior art. This allows, for example, an optimized maintenance or service with regard to the filters. Further, it is also possible that the first component 60 is re leasable fixed or releasable mounted and/or further movable con figured by means of a push-pull mechanism, preferably in a spring loaded manner. With such a configuration, the channel
output 30 comprises preferably an actuating bar that is config ured to be operated manually. Hence, the first component 60 of the extraction system with the outlet opening 30 can be released by a user in a simplified manner.
Although illustrative embodiments of the present invention have been described herein with reference to the accompanying draw ings, it is to be understood that the present invention is not limited to these precise embodiments, and that various other changes and modifications may be affected therein by one skilled in the art without departing from the scope or spirit of the in vention. All such changes and modifications are intended to be included within the scope of the invention as defined by the ap pended claims.
List of reference numerals
10 combination appliance
12 cooking hob
14 downdraft extraction device
16 kitchen cabinet
17 drawer
18 kitchen countertop
20a, 20b cooking regions
22 worktop
24 suction opening
26 cover grid
28 casing
30 exhaust opening/channel output
31 output cross-section
32 base area
33 guide element
34 outlet grille 36 extraction fan 38 intake opening 40 rear wall 42 fan housing 44 air duct
4gl to 5 arrows indicating air flow
48 filter assemb1y
50 outlet air channel
52 plinth panel
54 gap
56 connection pipe
58a, 58b upper and lower channel deflection elements 60 vertical flat channel element 62 channel end element
64 tongue
4a 64b lateral edges 6 groove 8 foot 0 bypass channel arrangement0a channel end element input 0b channel end element output0 filter assemb1y 0 control unit 00 receiving section 10 sensor unit 20 drive unit 30 rail mechanism
Claims (1)
- Claims1. An extraction system for removing air, in particular heated air, from an area above a cooking hob (12), which air partic ularly comprises cooking vapours, the extraction system com prising an extraction device (14), particularly an extraction hood, more particularly a downdraft extraction hood, and an outlet air channel (50), the extraction device comprising- an inlet opening (24) for an air intake into an interior of the extraction device (14),- a conduction means, particularly an air duct, for conduct ing the air through the interior of the extraction device (14),- preferably a fan for sucking-in the air from the area above the cooking hob (12), the fan being arranged in or being in operative connection with the conduction means, and- an outlet connection piece (56) connected to a channel in put of the outlet air channel (50), wherein the outlet air channel (50) is configured for trans mitting exhaust air from the channel input to a channel out put (30) provided for blowing out the exhaust air, in partic ular into room air or ambient air, characterized in that the outlet air channel (50) includes at least a first compo nent (60) or a first section of its entire length having a cross-sectional area and/or a passage area, which extends in a first direction and in a second direction orthogonally to the first direction, wherein the ratio of the extension in the first direction to the extension in the second direction is at least 3 to 1, preferably at least 5 to 1, more prefera bly at least 10 to 1, wherein the cross-sectional area and/or the passage area is particularly rectangular or oval-shaped.2. The extraction system according to claim 1, characterized in that the first component (60) or first section- is positioned or positionable at least close to at least one wall of a cabinet (16) for accommodating the extrac tion system, in particular the component or section is at tached or attachable to or positioned or positionable ad jacent to the at least one wall (40), and/or- forms or is configured to form at least a part of at least one wall (40) of the cabinet (16).3. The extraction system according to claim 2, characterized in that the at least one wall is at least one of- a side wall,- a rear wall (40), and- a bottom wall of the cabinet (16).4. The extraction system according to anyone of the preceding claims, characterized in that the first component (60) or first section or a wall element comprising the first component (60) or first section is de signed and/or configured for replacing a wall, preferably the rear wall (40), of a standard cabinet (16) for accommodating the extraction system.5. The extraction system according to claim 4, characterized in that the first component (60) or first section or the wall element comprising the first component (60) or first section forms a replacement of the rear wall (40) of a standard cabinet (16) for accommodating the extraction system and comprises at least one laterally arranged tongue (64) configured for being inserted in a groove of a side wall of the cabinet (16), par- ticularly in the groove provided for a standard cabinet rear wall (40).6. The extraction system according to claim 4, characterized in that the first component (60) or first section or the wall element comprising the first component (60) or first section com prises at least one laterally arranged groove (66) configured for receiving a first lateral edge (64a) of a tongue (64), wherein a second lateral edge (64b), which is opposite to the first lateral edge (64a), of the tongue (64) is configured for being inserted in a groove of a side wall of the cabinet (16), particularly in the groove provided for standard cabi net rear wall (40). 7. The extraction system according to claim 5 or 6, characterized in that the first component (60) or first section or the wall element comprising the first component (60) or first section is adaptable to the width of the cabinet (16) by adjusting the width of the tongue (64), the lateral extension of the tongue(64)in particular being reducible, specifically by cutting the tongue (64).8. The extraction system according to anyone of the preceding claims, characterized in that the first component (60) or first section or the wall element comprising the first component (60) or first section - is a metallic component, particularly made of aluminium, more particularly manufactured by an aluminium extrusion, or- is a plastic component, particularly manufactured by an injection moulding, a blow moulding or a plastic extrusion process .9. The extraction system according to claim 8, characterized in that the first component (60) or first section or the wall element comprising the first component (60) or first section is manu factured with an excess length of arbitrary longitudinal di mension and adaptable to the length required for each spe cific application, preferably by cutting a product resulting from an open length production to the required length.10. The extraction system according to anyone of the preceding claims, characterized in that the first component (60) or first section or the wall element comprising the first component (60) or first section includes at least one supporting rib keeping opposite channel walls at a distance from each other, wherein the at least one support ing rib particularly being centrally arranged or evenly dis tributed over the lateral extension.11. The extraction system according to anyone of the preceding claims, characterized in that the first component (60) or first section or the wall element comprising the first component (60) or first section is con nected or connectable to a deflection element (58a, 58b) at its top and/or bottom end, designed or configured for provid ing a redirection of the airflow of the transmitted exhaust air by at least approximately 90 degrees. 12. The extraction system according to anyone of the preceding claims, characterized in that the outlet connection piece (56) of the extraction device (14) has a cross-section compatible to the cross-section of the channel input of the outlet air channel (50) or an adapter piece is interposed between the outlet connection piece (56) and the channel input of the outlet air channel (50) designed to perform a cross-section adjustment. 13. The extraction system according to anyone of the preceding claims, characterized in that the channel output (30) of the outlet air channel (50) is spaced from or designed to be spaced from a plinth area of a cabinet (16) for accommodating the extraction system, in par ticular from a plinth panel (52) arranged in the plinth area, with a distance of at least 5 cm, preferably at least 10 cm, more preferably at least 20 cm, most preferably at least 30 cm, wherein particularly a horizontally aligned second compo- nent (62) or second section of the outlet air channel (50), which forms an end element of the outlet air channel (50), is arranged downstream of, and is preferably connected to, the first component (60) or first section, preferably downstream of the deflection element (58b) at the bottom end of the first component (60) or first section.14. The extraction system according to anyone of the preceding claims, characterized in that the outlet air channel (50) comprises a horizontally aligned or alignable second component (62) or second section, which is particularly arranged downstream of the first component (60) or first section, wherein the second component (62) or second section- is arranged or arrangeable below a bottom wall of a cabinet(16) for accommodating the extraction system extending to a frontal plinth area of the cabinet (16), in particular to a plinth panel (52) arranged in the plinth area, which plinth panel (52) preferably comprises an opening for air passage, wherein particularly the second component (62) or second section includes a bypass channel arrangement (70), which preferably performs an airflow split, for leading the airflow past a cabinet foot (68), and wherein the out let air channel (50) particularly penetrates or is config ured to penetrate a rear section of the bottom wall of the cabinet (16), or- is guided or is configured to be guided alongside a top side of a bottom wall of the cabinet (16), preferably with an end section of the second component (62) or second sec tion penetrating or being configured to penetrate a front section of the bottom wall, specifically in vertical di rection, designed for performing a vertical air discharge.The extraction system according to anyone of the claims 1 to3, characterized in that the outlet air channel (50) penetrates or is configured to penetrate a kitchen worktop (18) or a cooking hob panel (22) providing an air discharge above the kitchen worktop (18) or cooking hob panel (22), preferably with a channel output spaced from or designed to be spaced from the kitchen worktop (18) or cooking hob panel (22).16. An extraction system for removing air, in particular heated air, from an area above a cooking hob (12), which air partic ularly comprises cooking vapours, the extraction system com prising an extraction device (14), particularly an extraction hood, more particularly a downdraft extraction hood, and an outlet air channel (50), the extraction device (14) compris ing- an inlet opening (24) for an air intake into an interior of the extraction device (14),- a conduction means, particularly an air duct, for conduct ing the air through the interior of the extraction device (14),- preferably a fan for sucking-in the air from the area above the cooking hob (12), the fan being arranged in or being in operative connection with the conduction means, and- an outlet connection piece (56) connected to a channel in put of the outlet air channel (50), wherein the outlet air channel (50) is configured for trans mitting exhaust air from the channel input to a channel out put (30) provided for blowing out the exhaust air, in partic ular into room air or ambient air, the extraction system in particular being designed according to anyone of the claims 1, 2, 3 or 15, characterized in that the outlet air channel (50) includes at least a first compo nent (60) or a first section comprising or being connected to the channel output (30), wherein the first component (60) or the first section is at least partially movable mounted and/or movable configured to adjust the location of the chan nel output (30) with reference to the cooking hob (12), pref erably dependent on at least one parameter. 17. The extraction system according to claim 16, characterized in that the channel output (30) has a cross-sectional area (31) and/or a passage area through which exhaust air to be blown out passes, wherein the cross-sectional area (31) and/or the passage area is particularly rectangular or oval-shaped, wherein the cross-sectional area (31) and/or the passage area is variably adjustable with respect to size, preferably de pendent on the at least one parameter. 18. The extraction system according to claim 16 or 17, wherein the channel output (30) comprises a guide element (33) for guiding the exhaust air to be blown out in a direc tional manner, wherein the guide element (33) is variably ad justable with respect to at least one direction, preferably dependent on the at least one parameter.19. The extraction system according to anyone of the preceding claims 16 to 18, characterized in that the first component (60) or the first section accommodates a filter assembly (80) with at least one odour filter and/or at least one vapour filter being preferably insertable into the first component (60) or the first section via the channel output (30).20. The extraction system according to claim 19, characterized in that the filter assembly (80), preferably at least one of the at least one odour filter and/or the at least one vapour filter, is releasable fixed via a latch mechanism, wherein the latch mechanism is preferably configured to be operated manually, preferably via a push-pull mechanism.21. The extraction system according to anyone of the preceding claims 16 to 20, characterized in that the extraction system defines a receiving section (100), in particular by an outer boundary or outer wall section thereof, the receiving section (100) being configured to re ceive at least partially a drawer (17), wherein the receiving section (100) is arranged at least partially adjacent to the extraction device (14), preferably to the fan.22. The extraction system according to anyone of the preceding claims 16 to 21, characterized in that the extraction system comprises a drive unit (100) driving the first component (60) or the first section translation- ally, preferably at least in a direction orthogonally to the cooking hob (12), more preferably orthogonally to an upper surface or wall of the cooking hob (12), from a first loca- tion to a second location and vice versa, wherein the drive unit (100) comprises preferably at least one motor, more preferably at least one servomotor.23. The extraction system according to claim 22, characterized in that the extraction system comprises at least one sensor unit (110) for detection of the at least one parameter and/or for detection of at least one property relating to the at least one parameter, wherein the at least one sensor unit (110) is connected to a control unit (90) being configured to at least control the drive unit (100) driving the first component (60) or the first section.24. The extraction system according to anyone of the preceding claims 16 to 23, characterized in that the outlet air channel (50), particularly the first component (60) or the first section, comprising or being connected to the channel output (30), is movable configured by means of a push-pull mechanism, preferably in a spring loaded manner, wherein the channel output (30) comprises preferably an actu ating bar being configured to be operated manually.25. A combination appliance (10) comprising an extraction system according to anyone of the preceding claims and a cooking hob (12), wherein the cooking hob (12) comprises cooking regions (20a, 20b) being preferably arranged on a left half and a right half of a worktop (22) of the cooking hob (12) and/or being preferably separated from each other by the inlet open ing (24).26. The combination appliance (10) according to claim 25, characterized in that the inlet opening (24) is arranged centrally in a first di rection of the worktop (22) and centrally in a second direc tion of the worktop (22) orthogonally to the first direction, and/or the inlet opening (24) has an inlet cross-sectional area, wherein the contour and/or size of the inlet cross-sectional area is at least similar to the contour and/or size of the cross-sectional area (31) of the channel output (30) in a view, preferably in a top view, and/or the inlet cross-sec tional area extends at least partially parallel to the cross- sectional area (31) of the channel output (30) in a direc tion, preferably in a longitudinal direction (X) of the cook- ing hob (12).27. The combination appliance (10) according to claim 25 or 26, characterized in that the extraction device (14), preferably the fan, is arranged below the cooking hob (12) and at least spaced from the inlet opening (24), preferably at least in a top view or at least in a bottom view of the cooking hob (12).28. A system comprising a cabinet, in particular kitchen cabinet, and an extraction system according to anyone of the preceding claims.29. A cabinet, in particular kitchen cabinet, comprising at least one hollow wall or comprising at least one wall that is re placeable by a hollow wall, the hollow wall comprising at least one inlet for introduction of air, particularly of heated air, more particularly of air comprising cooking va pours, and an outlet for blowing-out the introduced air, par ticularly into room air or ambient air, or for blowing into an exhaust channel, the cabinet in particular accommodating the extraction system according to anyone of the claims 1 to24 or a combination appliance (10) according to anyone of the preceding claims 25 to 27.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP20210533.4A EP4006432A1 (en) | 2020-11-30 | 2020-11-30 | Extraction system for removing air and cabinet |
| EP20210533.4 | 2020-11-30 | ||
| PCT/EP2021/081873 WO2022112062A1 (en) | 2020-11-30 | 2021-11-16 | Extraction system for removing air and cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2021386547A1 AU2021386547A1 (en) | 2023-06-01 |
| AU2021386547A9 true AU2021386547A9 (en) | 2024-02-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2021386547A Pending AU2021386547A1 (en) | 2020-11-30 | 2021-11-16 | Extraction system for removing air and cabinet |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4006432A1 (en) |
| AU (1) | AU2021386547A1 (en) |
| WO (1) | WO2022112062A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024055411A1 (en) * | 2022-09-13 | 2024-03-21 | 广东合捷电器股份有限公司 | Fume extracting mechanism and induction cooker integrated stove |
| EP4368899A1 (en) * | 2022-11-14 | 2024-05-15 | Electrolux Appliances Aktiebolag | Fume extraction system and method for operating an extraction device |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2525614A (en) * | 1947-06-21 | 1950-10-10 | Cribben And Sexton Company | Ventilated range |
| US3356008A (en) * | 1964-11-27 | 1967-12-05 | Nautilus Ind Inc | Retractable stove hood |
| JPS6053817B2 (en) * | 1980-10-27 | 1985-11-27 | ハイキエ−ス株式会社 | cooking exhaust system |
| JP3210855B2 (en) * | 1996-03-28 | 2001-09-25 | シャープ株式会社 | Oil smoke scattering prevention device |
| DE10216012A1 (en) * | 2002-04-11 | 2003-10-30 | Max Maier | Extractor hood for cooker top with grease filter has blower nozzle positioned on side of cooker top opposite to grease filter to feed grease droplets generated directly into grease filter for im(proved grease extraction |
| US7836877B2 (en) * | 2005-05-02 | 2010-11-23 | Western Industries, Inc. | Adjustable downdraft ventilator |
| US11098906B2 (en) * | 2016-08-26 | 2021-08-24 | BSH Hausgeräte GmbH | Combined appliance and a kitchen device with the combined appliance |
| CN111692619A (en) * | 2020-06-30 | 2020-09-22 | 浙江安德电器有限公司 | Downdraft smoke stove all-in-one machine |
| CN111998395B (en) * | 2020-08-07 | 2022-10-28 | 绍兴市康内电器有限公司 | Split type integrated stove with quick connection structure and installation method thereof |
-
2020
- 2020-11-30 EP EP20210533.4A patent/EP4006432A1/en active Pending
-
2021
- 2021-11-16 AU AU2021386547A patent/AU2021386547A1/en active Pending
- 2021-11-16 WO PCT/EP2021/081873 patent/WO2022112062A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022112062A1 (en) | 2022-06-02 |
| AU2021386547A1 (en) | 2023-06-01 |
| EP4006432A1 (en) | 2022-06-01 |
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