EP3502572A1 - Vapour extraction device, kitchen appliance comprising a cooker hob and vapour extractor device and method for operating a vapour extraction device - Google Patents

Abstract

The invention relates to an extractor hood device with a suction shaft (24), in the upper end of which an air inlet opening and at least one outlet opening (29) is formed, and at least one vapor trap slidably mounted in the suction shaft (24) with at least one suction gap (20). The extractor device is characterized in that the vapor trap consists of at least two flat screen elements (21, 22, 22 '), the suction gap (20) is formed between the screen elements (21, 22, 22'), at least one of the at least two screen elements ( 21, 22, 22 ') in at least one position of the vapor trap partially projects beyond the outlet opening (29) of the suction shaft (24) and the at least two screen elements (21, 22, 22') are detachably mounted in the suction shaft (24). In addition, a kitchen appliance (1) having such an extractor device and a method for operating an extractor device are described.

Description

The present invention relates to a fume extractor, a kitchen appliance with hob and extractor device and a method for operating a fume extraction device.

For cleaning of fumes and vapors that arise when cooking on a hob, it is known to use cooker hoods, which are mounted above the hob, for example, on a room wall. These extractor hoods suck the fumes and vapors upwards. In addition, so-called trough vents or downdraft devices are known in which fumes and vapor are sucked down. A dump ventilation is for example in the DE 10 2010 042 436 A1 described. This hood ventilation uses a cooker hood that can be extended vertically from a hob.

A disadvantage of this device is that the efficiency of the extractor device is low, since the suction opening is large and thus in addition to the vapor to be detected and clean air is sucked and the hood is difficult to clean.

Object of the present invention is therefore to provide a solution with which the efficiency of the vapor detection can be increased in a simple manner and which is also easy to clean.

According to a first aspect, the object is achieved by a fume extractor with a suction duct, in whose upper end an air inlet opening and at least one outlet opening is formed, and at least one displaceable in the suction duct mounted vaporizer with at least one suction. The extractor device is characterized in that the vapor trap consists of at least two planar shield elements, between the shield elements of the suction gap is formed, at least one of the at least two shielding elements in at least one position of the Wrasenfangs partially beyond an outlet opening of the suction out protrudes and the at least two shield elements are detachably mounted in the suction shaft.

As a vapor extraction device, a device is referred to, by means of which fume and vapor sucked from a hob or a work surface and preferably can be cleaned. The extractor device comprises a suction duct and a vapor trap. In addition, the extractor device preferably comprises at least one fan or is connected to a fan, is generated via the negative pressure, by means of which the vapors and vapors can be sucked into the vaporizer and about in the suction duct. In addition, the extractor device preferably comprises at least one filter element, which may for example be arranged in the suction duct and on which impurities such as grease or liquid particles can be separated from the vapors and steams.

The suction duct according to the invention has an air inlet opening. The air inlet opening is formed in the upper end of the suction shaft. In addition, the suction channel has at least one outlet opening, which is likewise formed in the upper end of the suction shaft. About the at least one outlet opening of the Wrasenfang can at least partially moved out of the suction duct, that is let out, be. The movement of the retraction preferably represents a displacement of the Wrasenfangs upwards relative to the suction chute. In this case, the Wrasenfang is moved out over the outlet openings upwards. Since at least two shielding elements are provided, at least two outlet openings are formed in the upper end of the suction duct. If the suction duct is open at the top, the outlet openings and the air inlet opening are both located in the opening formed by the upper edge of the suction duct, that is to say together they form this opening. The shield elements, which make up the Wrasenfang, are preferably each extended at an edge of the opening, which is formed by the upper edge of the suction duct, upwards. The edge regions of this opening are therefore referred to as outlet openings. The air inlet opening is therefore formed by the distance between the extended screen elements in the opening, which is formed by the upper edge of the suction duct. A frame or other separation is not present in this embodiment between the air inlet opening and the outlet openings. However, according to the invention it is also possible that the upper end of the suction shaft is covered by a cover plate in which at least two slots, which represent the outlet openings, are introduced, can be extended by the respective at least one screen element from the suction shaft upwards. In addition, in this embodiment, an opening is made in the cover plate, which represents the air inlet opening. This may be adjacent to the outlet openings and the air inlet opening is located between the outlet openings.

Directional information, as above and below refer - unless otherwise stated - to a fume extractor in the assembled state. In particular, this information relates to a fume extraction device in which the upper end of the suction duct and thus also the at least one outlet opening lies in the horizontal.

The suction duct preferably extends downwards from the outlet opening in the vertical direction. The suction duct can also be referred to as a suction duct and is connected at the end, which is remote from the upper end, to the blower of the extractor device or the blower connected thereto. In the suction duct a Wrasenfang is slidably mounted. The vapor trap has at least one suction gap, which can also be referred to as suction gap. As a vapor trap according to the invention the part of the extractor device is referred to, is passed over the one or more Absaugspalten air to the air inlet opening and thus into the suction duct. The Wrasenfang is slidably mounted in the suction shaft. Preferably, the Wrasenfang is hereby mounted vertically displaceable in the suction shaft.

The invention is characterized in that the vapor trap consists of at least two planar shield elements, which are displaceable with respect to the suction shaft. As umbrella elements, the parts are referred to, which together form the intake tract of the Wrasenfangs. In particular, the parts are referred to as shielding elements, which form the at least one suction gap and an air line to the suction duct. The screen elements are preferably plates which may be flat or curved about a horizontal or a vertical axis. The shielding elements are preferably arranged so that the distance between the shielding elements is equal over their height. For flat screen elements, these are therefore preferably aligned parallel to each other. The shielding elements preferably consist of a transparent material. For example, the shielding elements may be made of glass or plastic. The screen elements are also referred to below as disks.

Between the screen elements, the suction gap is formed in the extractor device according to the invention. The suction gap can in this case be formed by the spacing of the surfaces of the screen elements. Preferably, the suction gap is formed by the distance of the corresponding edges of two screen elements. For example, a part of the suction gap or the entire suction gap may be formed by the distance of the upper edges of two adjacent screen elements. The distance may be horizontal or inclined to the horizontal. A further part of the suction gap can be formed for example by the distance of the side edges of two screen elements. This part of the Absaugspaltes may lie in the vertical or inclined.

According to the invention, at least one of the at least two shielding elements partially projects beyond an outlet opening of the suction duct in at least one position of the vapor trap. The at least one screen element protrudes upward beyond the outlet opening. The position of the Wrasenfangs is the one whose position in the state in which the extractor device is not operated, that is, the rest position designated. In addition, the position of the Wrasenfangs also its position in a state in which the extractor device is operated, that is, an operating position called. The Wrasenfang may have several different operating positions, that is orientations in which by means of a blower fume and vapor are sucked from a work surface or a hob. The position of the screen element or elements in the different positions of the Wrasenfangs is set, that is, the screen elements can be moved to the respective position and held there.

In addition, the at least two shielding elements according to the invention releasably mounted in the suction duct. As releasable storage attachment is referred to, which can be solved without tools. Each screen element is preferably stored separately in the suction shaft. The attachment can be, for example, an insertion, a pinching or latching of the shielding element with a fastening element.

According to the invention, at least two planar shielding elements are used, the suction gap is formed between the shielding elements, the shielding elements protrude at least partially beyond the outlet openings of the extraction duct in at least one position of the Wrasenfang, and the at least two shielding elements are detachably mounted in the extraction duct, a number of advantages can result be achieved. Through the surfaces of the shielding elements, which protrude beyond the outlet opening of the suction duct, the air guidance of the air from the suction gap to the suction duct, in particular to the air inlet opening, is formed. Since the Wrasenfang is slidably mounted in the suction duct, in addition, the suction can be at least partially brought to different heights and placed in a position corresponding to the height of the origin of the steam and vapors. In particular, at least the upper part of the suction gap can be brought to a height which corresponds to the height of a cooking vessel, in particular a pot or a pan. This can increase the efficiency of suction of fumes and vapors. In addition, by the screen elements are releasably mounted in the suction duct, they can be easily removed from the extractor device. In the removed state, the screen elements, for example, be cleaned in a dishwasher. When aspirating fumes and vapors, impurities will be deposited on the screen elements. By the tool elements can be removed from the extractor device and cleaned, the screen elements can act as a filter, that is used for the deposition of impurities. Particularly preferably, the shielding elements are at least partially held by their own weight in the suction duct and in particular on the fastening element. In particular, in screen elements that are made of glass, can be ensured by the high weight self-secure, for example, in a rail.

Each screen element is preferably releasably attached to a fastening element, in particular a rail, which is displaceably mounted in the suction shaft. By the screen element is releasably secured to a fastener which is slidably mounted, only the screen element itself is separated from the extractor device when removing the shield element. The fastener, however, can remain in the extractor device.
If the fastening element is a rail, the planar shield element, which preferably represents a pane, can be easily inserted from above into the rail inserted and pulled out of the rail for removal. If the rail represents a horizontally extending rail, the screen element can be held by the rail at least on the entire lower edge and preferably the lower region of the side surfaces. If the rail represents a vertically extending rail, it is preferably closed at its lower end. Therefore, the lateral area of the lower edge of the screen element and the lower area of the side edge of the screen element are held on this rail.

Preferably, the fastening element is connected to a movement device for vertical displacement of the at least one screen element. The fastening elements may be attached to the movement device so that they can be moved separately from each other. Alternatively, the fasteners can also be moved together. The movement device may be, for example, a spindle or a toothed drive, for example with a toothed belt or toothed rack.

The at least two shielding elements can be mounted displaceably relative to one another with respect to the suction duct or can be mounted together so as to be displaceable relative to the suction duct. In particular, the shield elements are vertically displaceable.

As separately displaceable to one another screen elements are referred to, in which a screen element can be moved without the at least one other screen element is also moved, or the screen elements are each moved by a different amount. At least in one position of the extractor device, the shielding elements are located at least partially in the extraction duct. The displacement of the screen elements can be done via a moving device, which can represent, for example, a lifting mechanism by means of spindles. However, other motion devices, which may also include motors, may be used.

By the screen elements are displaced separately from each other, the size and position of the Absaugspaltes can be flexibly adjusted. Thus, the conditions on the hob or worktop in the vicinity of the extractor still can be better taken into account and thus the Wrasenfangrate and the efficiency of the extractor device can be further increased.

As jointly displaceable screen elements are referred to, which are moved simultaneously and by the same amount. At least in one position of the extractor device, the shielding elements are located at least partially in the extraction duct. The displacement of the screen elements can be done via a moving device, which can represent, for example, a lifting mechanism by means of spindles. However, other motion devices, which may also include motors, may be used. The shielding elements can be fastened to a common fastening element. For example, the fastener may be a rail construction with two rails firmly connected to each other, in each of which one of the shield elements can be inserted. The screen elements can also be solved separately from each other from the fastener and thus from the extractor device in this embodiment.

In the embodiment with jointly displaceable screen elements, the size of the suction gap is fixed. Only the height, in which this Absaugspalt is brought, is changed by moving the screen elements. The embodiment in which the screen elements are mounted together displaceable, has the advantage that the construction of the extractor device is further simplified and yet the screen elements can be easily removed from the extractor device and cleaned.

The extractor device may have two screen elements, which form the Wrasenfang. The invention will therefore be described below mainly with reference to an extractor device with two screen elements.

According to one embodiment, the extractor device but three screen elements. In this embodiment, the screen elements are arranged so that two laterally adjacent to each other and to the third screen element are offset horizontally. If a cover plate is provided at the upper end of the suction duct, an outlet opening for a rear screen element and for each is preferably provided therein front screen element each provided a separate outlet opening or a common outlet opening provided.

Directional information, such as front or rear, unless otherwise stated, refers to a cooker hood mounted in or on a hob. The front is the direction that faces the hob or a cooking zone, and the back is the direction away from the hob or cooking zone.

In the embodiment of the extractor device with three screen elements, the two laterally adjacent screen elements are preferably the front screen elements and the third screen element represents the rear screen element. In particular, the two laterally adjacent screen elements lie in front of the air inlet opening of the extractor device and the rear screen element behind the air inlet opening. Shield elements are referred to as laterally adjacent, in which one side edge of a screen element faces a side edge of a further screen element and the two screen elements lie in a common plane. The third screen element in this embodiment is preferably in a plane which is offset to the plane of the first two screen elements to the rear. Particularly preferred is given between the mutually laterally adjacent screen elements a distance. By this distance, a further part of the suction gap is formed. In particular, air can be sucked in through this part of the suction gap, which flows in front of the extractor device from the front, and thus the flow directed to the suction gap can be intensified. In this embodiment, the suction gap is thus formed at least by the distance of the upper edges of the front screen elements to the upper edge of the rear screen element and by the distance between the front screen elements. In addition, between the side edges of the front screen elements, which are remote from the respective other front screen element, and the side edges of the rear screen element, a further part of the suction gap can be formed.

According to a further embodiment, one of the at least two shielding elements has a larger area than the at least one further shielding element. In particular, the rear screen element, that is, the cooking element facing away from a screen element is greater than the or the front screen element (s). In particular, the larger one has Umbrella element has a greater width and greater height than the at least one further screen element. In a state in which the lower edges of the at least two screen elements lie at a common height, so that the upper edge of the front screen or the (s) is lower than the upper edge of the rear screen element. If only two shielding elements are provided, then the shielding elements are arranged relative to one another such that their width centers lie in a line. If two front screen elements are provided, their width is preferably selected so that the sum of the widths and the distance between the front screen elements is less than the width of the rear screen element.

By a screen element, preferably the rear screen element has a larger area, the Absaugspalt is increased in its height direction. In particular, in this embodiment the suction gap is inclined from the horizontal and extends from the edges of the one or more smaller screen elements to the edges of the larger screen element. In addition, by this embodiment, a lateral intake of air, that is, on the distances between the outer side edges of the front screen elements and the side edges of the rear screen element allows.

According to one embodiment, in an operating position of the vapor trap, the upper edges of the at least two shielding elements are at different heights above the outlet opening of the suction chute. The shield element, the upper edge of which lies at a lower height, is preferably facing the hob, and the shield element, the upper edge of which lies at a greater height, lies behind this shield element. As a result, the reliable suction of vapor is guaranteed. On the one hand, the size of the suction gap, which is formed between the upper edges of the screen elements, is greater than in screen elements whose upper edges are at the same height. The extraction gap is in this case inclined from the horizontal and has at the same distance of the screen elements to each other on a larger size. In addition, the suction in this embodiment is also supported by the fact that a passing of Wrasen on the rear screen element can be prevented by its greater height above the air inlet opening. In addition, the front screen element, which faces the hob, are brought in the extractor device according to the invention in such a position that its upper edge on a Height is equal to the height of a cooking vessel located on the hob. Thus, the suction gap of the extractor device is brought into the vicinity of the upper edge of the cooking vessel, thus ensuring a reliable suction. The different positions of the upper edges of the screen elements can be selectively adjusted in the extractor device according to the invention by the screen elements are moved separately from each other. In an embodiment in which the screen elements are mounted together movable, the different position of the upper edges can be adjusted by appropriate sizes of the screen elements.

According to one embodiment, in the rest position or in an operating position of the vapor trap, a shield element is completely accommodated in the suction chute and at least one further shield element partially protrudes upwards beyond the outlet openings of the suction chute. If the position of the extractor device is a rest position, the screen element facing the hob, which is also referred to below as the front screen element, is preferably in a position in which it partially projects upwards beyond the outlet opening. The rear screen element can lie in a position in which this is completely absorbed in the suction duct. In this case, the entry of contaminants into the outlet opening, for example of spilled liquids, can be prevented by the upstanding front screen element.

According to a further embodiment, in which the position of the vapor trap is a rest position, the screen element facing away from the cooking field, that is to say the rear screen element, can be in the position in which it protrudes partially upwards via the outlet opening. The front screen element can lie in a position in which this is completely absorbed in the suction duct. In this case, for example, a splash guard for a room wall, which lies behind the extractor device can be created by the upstanding rear screen element. In order to prevent the entry of contaminants into the air inlet opening in this embodiment, the air inlet opening of the suction duct, for example, by a cover, such as flap are covered.

If the position of the vapor trap is an operating position, the shielding element facing away from the cooking surface, that is to say the rear shielding element, is preferably in the position in which this partially protrudes above the outlet opening. The front screen element can lie in a position in which this is completely absorbed in the suction duct. In this case, by the upstanding rear screen element further a splash guard for a room wall, which is behind the extractor device, be created. In this operating position, the suction gap is formed by the rear screen element and the front screen element accommodated in the suction shaft. Thus, the suction gap is relatively close to the air inlet opening. This operating position is therefore suitable for cooking operations in which shallow cooking vessels, such as pans are used.

However, it is also within the scope of the invention that the upper edges of the at least two screen elements lie in an operating position and / or the rest position at the same height. In this embodiment, in particular in the rest position, the at least two shielding elements can be completely accommodated in the suction duct. The air inlet opening and the outlet openings can be covered in this position by a cover. This can be configured for example as a flap. If the position is an operating position, the at least two shielding elements can also be completely accommodated in the suction chute. This operating position is suitable for cooking operations using flat cooking vessels such as pans. If, however, higher cooking vessels, such as pots are used, the at least two shielding elements can lie with their upper edge at the same height above the outlet openings. This embodiment is particularly preferred when the extractor device is arranged between adjacent cooktops, since both cooktops can reliably suck in fumes and vapors.

The suction gap preferably extends at least along the upper edge of at least one of the screen elements. In addition, the suction gap may preferably also extend along the side edges of the screen elements. In the embodiment in which two front screen elements are provided, the suction gap also extends along the distance of the two front screen elements.

According to a preferred embodiment, the extractor device has at least one sensor for detecting the height of objects in the vicinity of the extractor device on. In particular, the height of objects on a hob adjacent to the extractor device can be detected. In this way, the position at which the suction gap preferably, in particular between the upper edges of the shielding elements must be in order to ensure reliable suction, be determined. Alternatively or additionally, the extractor device may comprise at least one sensor for detecting the Wrasenaufkommens in the vicinity of the extractor device. This also makes it possible to determine the position at which the suction gap, in particular between the upper edges of the screen elements, must lie, in order to ensure reliable suction. In addition, by providing a sensor, such as the sensor for detecting the Wrasenaufkommens, the fan of the extractor device can be activated. By providing a sensor on the fume extractor, the fume hood can be operated in a fully automatic mode. In this case, the height of the cooking vessels can be detected via the sensors and the vapor trap, in particular the screen elements are moved so that an optimal vapor detection is guaranteed.

According to one embodiment, the extractor device has a control unit which changes the orientation of the at least two shielding elements on the basis of the detected sensor data. In particular, the relative position of the individual screen elements to the outlet openings and the relative position of the screen elements to each other can be adjusted.

According to a preferred embodiment, the control unit is therefore designed so that on the basis of the detected sensor data, the amount by which at least one screen element over the outlet opening protrudes upward, and / or the height difference of the upper edges of the at least two screen elements is changed. The driving of the movement device, over which the screen elements are moved, can be carried out so that the at least two screen elements are moved simultaneously. However, the movement of one of the screen elements can be terminated, for example, while the at least one further screen element is still being moved.

According to one embodiment, the extractor device comprises at least one lighting device. The lighting device may be provided, for example, at the upper edge or lower edge of at least one of the screen elements and, for example consist of light-emitting diodes. In the case of a transparent material of the shielding elements, the light can be coupled into the shielding element by means of an illumination device arranged on the lower edge and the entire shielding element can emit the light and thus form a planar illumination. This embodiment can be used particularly advantageously in the extractor device according to the invention, since, for example, in a rest position of the extractor device, the front or the rear screen element can be extended over the outlet opening upwards and thus can act as a lighting or design element.

With suitable processing of the edges and in particular the upper edge of one or the screen elements, which consists of transparent material, but the light can also be delivered only over the edges and thus serve as a functional light. The screen or the elements serve also here as a light guide.

According to a further embodiment, the extractor device comprises a light sensor, which is also referred to as a photosensor and is arranged at a distance from the screen elements and the outlet openings. For example, the light sensor can be arranged on the front of a hob. In this way it can be detected by the light sensor, whether the light emitted by the lighting device of the extractor device and in particular by the upper edge of the screen element light is received and thereby the presence of an object on the hob are detected. In addition, in particular, when the upper edge of the screen element, the upper edge of which is at the highest level, is used to emit light, and the height of the article, in particular cooking vessel can be determined and the screen elements are moved accordingly.

According to a further aspect, the invention relates to a kitchen appliance with at least one hob and a fume extraction device according to the invention. The extractor device may be connected to the hob. In particular, the control of the extractor device may be connected to the control of the hob. The extractor device is preferably arranged behind the back of the hob and extends in the width direction of the hob. Preferably, the extractor device extends over the entire width of the hob. The back of the hob is the side that is the side of the hob that faces the user and are preferably provided at the controls of the hob, facing away. The extractor device may be located at a small distance to the back of the hob or adjacent to the back. Preferably, the hob is inserted into a worktop of a kitchen cabinet, in particular kitchen cabinet. For the extractor device while a recess is introduced behind the hob in the worktop. In the recess is preferably the opening of the suction duct of the extractor device, in which the outlet opening (s) are provided.

According to a further embodiment, the extractor device is integrated in the hob. In this embodiment, the upper end of the suction duct lies in the surface of the hob. In particular, the at least one outlet opening and the air inlet opening of the suction duct are preferably located in the middle of the width of the surface of the hob and extend in the depth direction of the hob. In the hob can be introduced to a corresponding recess. In this recess is the upper end of the suction duct, in which the at least one outlet opening is formed, via which the at least two shielding elements can be extended upwards. In this embodiment, the shielding elements are preferably extended in an operating position of the extractor device in such a way that the upper edges of the at least two shielding elements are at the same height. However, it is also within the scope of the invention that the screen elements are deployed at different heights in an operating position. By the extractor device is integrated in the hob and is provided in particular in the middle of the width of the hob, can be reliably sucked by the extractor device vapors of cooking vessels of all cooking zones of the hob. The extractor device and in particular the screen elements are namely in this embodiment in the immediate vicinity of, for example, four cooking zones. If the screen elements are provided separately displaceable in the extractor device, in the case in which cooking vessels are provided, for example, only on one side of the extractor device, the screen element facing this side can be extended to a lower height than the at least one further screen element.

According to a further aspect, the invention relates to a method for operating a fume extraction device according to the invention. The method is characterized in that the relative position of at least one screen element to the outlet opening and the relative position of the upper edges of the screen elements to each other are adjusted. As a result, the use of different levels cooking vessels are taken into account and fumes and vapors are reliably sucked.

According to a preferred embodiment, at least the relative position of at least one screen element is changed to the outlet opening in the transition from an operating position to another operating position of the extractor device. In particular, when using higher cooking vessels, the at least two screen elements can be moved from a first operating position for flat cooking vessels up until the upper edge of the front screen element is at the height of the upper edge of the cooking vessel. In addition, in this case, the distance between the upper edges of the screen elements can be increased.

According to one embodiment, the adjustment of the positions of the at least two screen elements is carried out fully automatically, semi-automatically or manually.

According to one embodiment, the adjustment of the positions of the at least two screen elements takes place fully automatically on the basis of sensor data. For the fully automatic mode, the height of the pots used is detected by sensors. The extractor moves the screen elements so that an optimal vapor detection is ensured. Height specifications for the screen elements can be generated via the moving illumination and a photosensor placed opposite the cooktop. Alternatively or additionally, the extractor device may comprise at least one sensor for detecting the Wrasenaufkommens in the vicinity of the extractor device.

For a semi-automatic mode, for example, three ideal positions of the screen elements could be stored. Each position covers a certain spectrum of cooking behavior. Depending on the situation, the screen elements are then moved up or down to one of these three positions.

For the manual solution, which can also be called a simple solution, for example, no sensors are used, but the user explained and left, when he wants to bring the extractor device via an operator, for example by means of touch elements, key elements, and / or gestures / voice control, which height. The explanation is about the height of the pots and Wrasenumfang. For example, you can allow the user three options. These can be: completely retracted, a low Wraseneinzug and a higher Wraseneinzug.

Advantages and features that are described and have been described with regard to the extractor device according to the invention also apply - as far as applicable - to the kitchen appliance according to the invention and the method according to the invention and in each case vice versa and are therefore described only once, if appropriate.

Figur 1:

eine schematische Perspektivansicht einer Ausführungsform des erfindungsgemäßen Küchengerätes;

Figur 2:

eine schematische Schnittansicht der Ausführungsform nach Figur 1 mit der Dunstabzugsvorrichtung in Ruhestellung;

Figur 3:

eine schematische Schnittansicht der Ausführungsform nach Figur 1 mit der Dunstabzugsvorrichtung in einer ersten Betriebsstellung;

Figur 4:

eine schematische Schnittansicht der Ausführungsform nach Figur 1 mit der Dunstabzugsvorrichtung in einer zweiten Betriebsstellung;

Figur 5:

eine schematische Schnittansicht der Ausführungsform nach Figur 1 mit der Dunstabzugsvorrichtung in einer dritten Betriebsstellung;

Figur 6:

eine schematische Schnittansicht einer weiteren Ausführungsform des erfindungsgemäßen Küchengerätes mit der Dunstabzugsvorrichtung in einer Ruhestellung;

Figur 7:

eine schematische Schnittansicht einer weiteren Ausführungsform des erfindungsgemäßen Küchengerätes mit der Dunstabzugsvorrichtung in einer Ruhestellung;

Figur 8:

eine schematische Schnittansicht einer weiteren Ausführungsform des erfindungsgemäßen Küchengerätes mit der Dunstabzugsvorrichtung in einer Betriebsstellung;

Figur 9:

eine schematische Perspektivansicht einer weiteren Ausführungsform des erfindungsgemäßen Küchengerätes mit der Dunstabzugsvorrichtung in einer Betriebsstellung;

Figur 10:

eine schematische Perspektivansicht des Küchengerätes nach Figur 8 mit der Dunstabzugsvorrichtung in einer Betriebsstellung;

Figur 11:

eine schematische Perspektivansicht einer weiteren Ausführungsform des erfindungsgemäßen Küchengerätes mit der Dunstabzugsvorrichtung in einer Betriebsstellung;

Figur 12:

eine schematische Perspektivansicht einer weiteren Ausführungsform des erfindungsgemäßen Küchengerätes mit der Dunstabzugsvorrichtung in einer Betriebsstellung;

Figur 13:

eine schematische Schnittansicht der Ausführungsform des erfindungsgemäßen Küchengerätes nach Figur 12 mit der Dunstabzugsvorrichtung in einer Betriebsstellung;

Figur 14:

eine schematische Schnittansicht einer weiteren Ausführungsform des erfindungsgemäßen Küchengerätes mit der Dunstabzugsvorrichtung in einer Betriebsstellung;

Figur 15:

eine schematische Perspektivansicht einer weiteren Ausführungsform des erfindungsgemäßen Küchengerätes mit der Dunstabzugsvorrichtung in einer Betriebsstellung; und

Figuren 16 bis 18:

schematische Schnittdarstellungen einer weiteren Ausführungsform der Dunstabzugsvorrichtung in unterschiedlichen Betriebspositionen.

The present invention will be described below again with reference to the accompanying drawings. It shows:

FIG. 1:

a schematic perspective view of an embodiment of the kitchen appliance according to the invention;

FIG. 2:

a schematic sectional view of the embodiment according to FIG. 1 with the extractor device in rest position;

FIG. 3:

a schematic sectional view of the embodiment according to FIG. 1 with the extractor device in a first operating position;

FIG. 4:

a schematic sectional view of the embodiment according to FIG. 1 with the extractor device in a second operating position;

FIG. 5:

a schematic sectional view of the embodiment according to FIG. 1 with the extractor device in a third operating position;

FIG. 6:

a schematic sectional view of another embodiment of the kitchen appliance according to the invention with the extractor device in a rest position;

FIG. 7:

a schematic sectional view of another embodiment of the kitchen appliance according to the invention with the extractor device in a rest position;

FIG. 8:

a schematic sectional view of another embodiment of the kitchen appliance according to the invention with the extractor device in an operating position;

FIG. 9:

a schematic perspective view of another embodiment of the kitchen appliance according to the invention with the extractor device in an operating position;

FIG. 10:

a schematic perspective view of the kitchen appliance according to FIG. 8 with the extractor device in an operating position;

FIG. 11:

a schematic perspective view of another embodiment of the kitchen appliance according to the invention with the extractor device in an operating position;

FIG. 12:

a schematic perspective view of another embodiment of the kitchen appliance according to the invention with the extractor device in an operating position;

FIG. 13:

a schematic sectional view of the embodiment of the kitchen appliance according to the invention according to FIG. 12 with the extractor device in an operating position;

FIG. 14:

a schematic sectional view of another embodiment of the kitchen appliance according to the invention with the extractor device in an operating position;

FIG. 15:

a schematic perspective view of another embodiment of the kitchen appliance according to the invention with the extractor device in an operating position; and

FIGS. 16 to 18:

schematic sectional views of another embodiment of the extractor device in different operating positions.

In FIG. 1 is a schematic perspective view of an embodiment of the kitchen appliance 1 according to the invention shown. The kitchen appliance 1 consists of a hob 3 and a fume extractor 2. The hob 3 is installed in a countertop 40 of a kitchen cabinet 4. In addition, a recess 41 is provided in the work surface 40. The recess 41 is located on the rear side of the hob 3 between the hob 3 and a room wall. In the recess 41, the extractor device 2 is introduced. In the view in FIG. 1 is only visible from the extractor device 2, the cover 23. The extractor device 2 is located in the FIG. 1 in a rest position. In the illustrated embodiment, a sensor 28 is integrated in the hob 3 in the front region of the hob 3. The sensor 28 may also be present separately from the hob 3 and, for example, be arranged in front of the front edge of the hob 3. The function of the sensor 28 will be explained later in more detail.

In FIG. 2 is a schematic sectional view of the embodiment of the kitchen appliance 1 according to FIG. 1 shown with the extractor device 2 in the rest position. As can be seen from the view of FIG. 2 results, the extractor device 2 to a suction duct 24. The upper end of the suction chute 24 is located in the recess 41, which is incorporated in the work surface 40. In this upper end, the outlet openings 29 of the suction duct 24 of the extractor device 2 are formed. Between the outlet openings 29, that is the parts of the opening at the upper end of the suction duct 24, the air inlet opening 290 is formed. The outlet openings 29 and the air inlet opening 290 are closed by the cover 23. Inside the suction duct 24, two screen elements 21, 22 are arranged. The shield element 22 rests against the front wall and the shield element 21 against the rear wall of the exhaust duct 24. The screen element 21 is therefore referred to below as a rear screen element and the screen element 22 as a front screen element. The screen elements 21,22 stand in the vertical. In the embodiment shown, the upper edges of the screen elements 21,22 lie at a common height and below the outlet openings 29. The screen elements 21,22 are thus in the Retraction shaft 24 retracted. The shielding elements 21, 22 can be mounted so as to be displaceable relative to one another with respect to the suction chute 24 or displaceable together. The shield elements 21, 22 form the vapor trap of the extractor device, which is mounted displaceably in the suction chute 24.

If the extractor device 2 is activated, that is turned on, the cover 23 is folded down. The cover 23 is folded so far down until it rests against the front wall of the suction duct 24. This movement is in FIG. 3 shown schematically. As it turned out FIG. 3 results, fumes, which is formed during cooking with a pot T, by a blower (not shown) sucked into the suction chute 24. The aspirated vapor is in this case passed between the screen elements 21,22 down. Between the upper edges of the shield elements 21,22 thus the suction gap 20 is formed. In FIG. 3 is shown in the suction duct 24 schematically a filter 26, through which the vapor is purified.

If it comes to a higher Wrasenaufkommen, the extractor device 2 can be moved to a second operating position. This operating position is in FIG. 4 shown schematically. In this operating position, the rear screen element 21 is displaced upward with respect to the suction chute 24. The displacement takes place by means of a movement device 25, from the in FIG. 4 only a guide rail for the rear screen element 21 can be seen. Also for the front screen element 22, a guide rail is preferably provided, which in the FIG. 4 not shown. In addition, the moving device 25 preferably has a drive, for example spindles (not shown). About this drive, the guide rails can be moved individually, in particular moved upwards. Alternatively, it is also possible that the movement device and in particular the drive does not act on one of the guide rails but on the respective screen element itself and displaces it upwards. A movement downwards takes place in the movement device 25 either also via the drive, or at least partially by the weight of the respective screen element 21, 22. The screen elements 21, 22 are of the movement device 25 detachable. In particular, the screen elements 21, 22 can be individually pulled out of the respective guide rail upwards, without the need for tools. In the embodiment shown, the rear screen element 21 thus lies at a greater height with respect to the outlet opening 29 than the front screen element 22.

If a higher cooking vessel, for example a higher pot T, is used for cooking, then the extractor device 2 can be moved into a further operating position. This operating position is in FIG. 5 shown schematically. In this operating position, the front screen element 22 is displaced upward in addition to the rear screen element 21. In this case, the upper edge of the rear screen element 21 is higher than the upper edge of the front screen element 22. The suction gap 20 is formed between the two upper edges of the screen elements 21, 22. This is in the operating position FIG. 5 not in the horizontal, but inclined to it. The front screen element 22 is displaced so far above the outlet opening 29 that the upper edge of the front screen element 22 is at the level of the upper end of the cooking vessel, in particular of the pot T. Thus, the resulting vapor can be reliably sucked in via the suction gap 20 and directed into the suction chute 24. Since the screen elements 21, 22 are displaceable separately relative to each other with respect to the suction chute 24, the different conditions which can be found in FIG FIG. 4 and FIG. 5 shown are taken into account.

In FIG. 6 is a schematic sectional view of another embodiment of the kitchen appliance 1 according to the invention with the extractor device 2 shown in a rest position. In this rest position, the rear screen element 21 is displaced upward relative to the suction chute 24 and in particular the outlet opening 29. The front screen element 22, however, is received in the suction chute 24. The rear screen element 21 can serve as a splash guard for the room wall in this rest position.

In FIG. 7 is a schematic sectional view of another embodiment of the kitchen appliance 1 according to the invention with the extractor device 2 shown in a rest position. In this rest position, the front screen element 22 is opposite the suction duct 24 and thus the outlet opening 29 moved upward. The rear screen element 21, however, is received in the suction chute 24.

At rest after FIG. 6 and FIG. 7 a cover (not shown) may be provided which covers the air inlet opening 290 in the region in which none of the screen elements 21, 22 projects upwards through these outlet openings 29. In the air inlet opening 290, a filter element 26 is indicated in the embodiment shown.

In FIG. 8 is a schematic sectional view of another embodiment of the kitchen appliance 1 according to the invention with the extractor device 2 shown in an operating position. In this embodiment, in contrast to the embodiment according to the Figures 1-7 the extractor device 2 integrated in the hob 3. This embodiment is in FIG. 10 shown in perspective view. The upper end of the suction chute 24 is in this embodiment thus in the hob 3. The upper end of the suction duct 24 and thus the outlet openings 29 thus extend over the entire depth of the hob 3 and is arranged centrally in the width direction. In the embodiment shown, both screen elements 21, 22 have the same height dimensions. In addition, in the operating position of the extractor device 2 shown, the two screen elements 21, 22 are displaced upwards by the same height with respect to the respective outlet opening 29. With this extractor device 2 thus vapors of cooking vessels, especially pots T, can be sucked from both sides of the extractor device 2. If, however, a cooking vessel, in particular pot T, is used on one side of the extractor device 2, which has a lower height than the height by which the screening elements 21, 22 project out of the outlet openings 29, then the respective shield element 21, 22, adjacent to this cooking vessel to be moved down to a certain amount. In this position, the downwardly moved screen element 21, 22 continues to protrude above the outlet openings 29 of the extractor device 2, which are located in the hob 3, upwards.

In FIG. 9 a further embodiment of the kitchen utensil 1 is shown in perspective view. The extractor device 2 of the kitchen appliance 1 is in this case in an operating position. In particular, the shield elements 21, 22 are extended upward. The embodiment according to FIG. 9 differs from the embodiment according to FIGS. 8 and 10 in that the extractor device 2 is spaced from the hob 3. In particular, in the FIG. 9 the hob 3 constructed in two parts and the extractor device 2 is between these two parts of the hob 3. For the extractor device 2 is therefore in the worktop 40 of the kitchen cabinet 4 a recess 41 is introduced. Also in the embodiment according to FIG. 9 the two screen elements 21,22 are preferably moved up to the same height relative to the suction chute 24. If, however, a cooking vessel, in particular pot T, is used on one side of the extractor device 2, which has a lower height than the height by which the screening elements 21, 22 project out of the outlet openings 29, then the respective shield element 21, 22, adjacent to this cooking vessel to be moved down to a certain amount. In this position, the screen element 21, 22, which is moved downwards, furthermore projects upward via the outlet openings 29 of the extractor device 2, which lie in the recess 41.

In FIG. 11 a further embodiment of the kitchen appliance 1 according to the invention with the extractor device 2 is shown in an operating position. In this embodiment, the screen elements 21, 22 have different sizes. In particular, in the illustrated embodiment, the front screen element 22 is smaller than the rear screen element 21. In particular, the front screen element 22 has a smaller width than the rear screen element 21. In addition, the front screen element 22 in the operating position shown by a smaller amount on the Outlet opening 29 shifted upward than the rear screen element 21. The height dimension of the screen elements 21,22 may be the same in this embodiment. In this case, the front screen member 22 is shifted upwardly only by a smaller amount than the rear screen member 21. In addition, in the embodiment according to FIG. 11 a lighting device (not visible) is provided. Light is introduced into the screen elements 21, 22 from below via the illumination device 27. By appropriate surface treatment of the screen elements 21,22 or due to the material property of the screen elements 21,22, the introduced light is emitted flat over the screen elements 21,22. The screen elements 21, 22 may be made of glass, for example.

In FIG. 12 is a perspective view of another embodiment of the kitchen appliance 1 with the extractor device 2 shown in the operating position. This embodiment is different from the one in FIG. 11 shown embodiment in that on the upper edge of the rear screen element 21, a lighting device 27 is provided. This can be for example an LED strip. Alternatively, however, it is also possible that the illumination device 27 is attached to the rear screen element 21 from below and the upper edge of the rear screen element 22 is treated in such a way that the introduced light is emitted via this upper edge. In FIG. 13 a schematic sectional view of this embodiment of the kitchen appliance 1 is shown. As can be seen from this view, the light is emitted from the upper edge of the rear screen element 21 inclined downwards. In the front region of the kitchen appliance 1, in particular in front of the hob 3, a sensor 28 is provided. This represents a photosensor in the illustrated embodiment. By this photosensor, the light emitted from the rear screen element 21 can be detected. If a pot T is placed on the hob 3, the height of the pot T can be determined by the photo sensor 28. This height determination is possible in particular since the screen elements 21, 22 can be moved separately relative to one another.

In the FIG. 14 a further embodiment of the extractor device 2 according to the invention is shown. In this embodiment, the upper end of the suction chute 24 is covered by a cover plate 200. In the cover plate 200, a recess, which forms the air inlet opening 290, and two recesses, each forming an outlet opening 29, introduced. The outlet openings 29 are arranged adjacent to the air inlet opening 290 and the air inlet opening 290 is located between the outlet openings 29. The extractor device 2 has two screen elements 21, 22 which extend in the state shown through the outlet openings 29 and protrude upwards. The lower end of each of the shield members 21, 22 is held in a fastener 250, respectively. In the illustrated embodiment, the fastener 250 is an upwardly open rail into which the lower end of the respective screen element 21, 22 can be inserted. The fastener 250 is connected to a moving device 25, which in FIG. 14 only schematically indicated. The movement device 25 may, for example, comprise a spindle and may be provided, for example, on a side wall of the suction chute 24. About the movement device 25, the associated fastener 250 can be moved vertically. As a result, the screen element 21 or 22 introduced into the fastening element 250 can be extended upward or retracted downwards become. The moving devices 25 can function separately from each other. As a result, the screen elements 21, 22 can be moved separately from each other. However, it is also within the scope of the invention that the movement devices 25 are connected or coupled together and thereby the screen elements 21, 22 are moved simultaneously. In this case, the two moving devices 25 shown can also be replaced by a single moving device to which the fastening elements 250 are connected.

The actuation of a fume extraction device 2 with a common movement device 25 for the two screen elements 21, 22 is in the FIGS. 16 to 18 shown schematically. Here, the relative position of the screen elements 21, 22 to each other in each of the positions shown is the same. FIG. 16 shows an operating position for sucking air from a pan or other shallow cooking vessel. FIG. 17 shows an operating position for sucking air from a small pot and FIG. 18 shows an operating position for sucking air from a higher pot.

In FIG. 15 a further embodiment of the kitchen appliance 1 according to the invention is shown. This embodiment differs from that in FIG FIG. 11 shown embodiment in that the extractor device 2 has three screen elements 21, 22, 22 '. In particular, the extractor device has a rear screen element 21 and two front screen elements 22, 22 '. The front screen elements 22, 22 'are arranged laterally adjacent to each other in a plane. Between the mutually facing side edges of the two screen elements 22, 22 'is a distance. The height of the front screen elements 22, 22 'is in each case smaller than the height of the rear screen element 21. The width of the two front screen elements 22, 22' is smaller than the width of the rear screen element 21 together with the distance between the screen elements 22, 22 ' In this embodiment, the suction gap 20 through which air is sucked extends both between the respective upper edge of each of the front screen elements 22, 22 'and the upper edge of the rear screen element 21 and along the side edges of the front screen elements 22, 22'. In particular, between the outer side edge of the respective front screen element 22, 22 'and the respective outer side edge of the rear screen element 21, a further part of the suction gap 20 is formed. Also between the respective side edge of the front screen elements 22, 22 ', which face each other, and the central area of the Rear screen element 21, a further part of the suction gap 20 is formed. The flow of air is in the FIG. 15 schematically indicated by block arrows. The front screen elements 22, 22 'are like the rear screen element 21 releasably held on the extractor device 2. The front screen elements 22, 22 'can be moved in and out together or separately. Preferably, however, the shield elements 22, 22 'are extended and retracted together in this embodiment.

The invention is not limited to the embodiments shown. For example, it is also within the scope of the invention that individual features of one embodiment are combined with those of another embodiment. For example, the in FIG. 14 shown fasteners 250 may also be used in another embodiment.

With the present invention, a fume extraction device is provided which, although known as fume extraction devices, the downdraft device, for example, can be arranged behind the hob and can drive out there. In particular, in the embodiment of the screen elements of transparent material, in particular glass, however, there is no optical barrier in the extractor device according to the invention. The arrangement of the screen elements forms a height-adjustable Wrasenfang, is ensured by the optimal Wrasen-detection. The suction flow of the extractor device is thereby optimized. In addition, a work light can be generated in particular in screen elements made of glass by light is coupled into the screen elements. In addition, at least one of the screen elements can serve as a splash guard. Also for this function is advantageous if the screen elements are made of glass.

According to a preferred embodiment, two glass plates are used in the extractor device according to the invention as a screen elements, which are arranged one behind the other and each can be flat or curved. It is also within the scope of the invention to produce the screen elements of a different material. The shielding elements are preferably arranged behind the hob and are mechanically extended. The height by which the screen (s) are extended and the number of screen elements that are deployed will match the current one Cooking situation. In this case, the adaptation takes place in such a way that the suction gap which arises between the screen elements is guided as close as possible to the upper edge of the pot. The height of the pots used can be detected by a sensor. In accordance with the detected height, the shielding elements move in such a way that optimum vapor detection is ensured. Specifications for the particular height to which the individual screen elements are to be moved can be generated via the moving illumination, which is effected by the screen elements, and a photosensor placed opposite the cooking field.

The arrangement of the glass panes forms a suction tract that can be moved up and down in height to adapt the suction gap in the height of the given Wrasensituation. Also on the sides of this extraction tract and optionally in a separate front disc also over the middle can also be sucked further vapors.

The additional suction on the side, the air is sucked from the pot environment. This helps to form a flow at an early stage and thus to distract the vapor. Due to the size and arrangement of the discs, the intake area is directed forward. The wider and higher a rear disc is, the more creates a possible impact / collecting surface for the vapor. The size of the front disc (s) affects the Wraseneinzug and the flow formation. The closer the lateral edges of the front disc (s) approach the lateral edge of the pot, the better the indentation.

The glass material or the other plate material, for example plastic, of which the screen elements are made, can serve both as a splash guard and as an optical waveguide. The light can be coupled from below over the lower edge of the screen elements. By appropriate edging of the upper edge, the output and direction of the light beam emitted by the screen elements can be adjusted. In the passive state of the extractor device, that is in the rest position of the extractor device, the extractor device is preferably not visible, but is, for example, under a worktop behind the hob. For low pots and normal vapors, it may suffice if only the rear screen element is raised. At higher pots, the front screen element becomes raised to bring the suction gap, which can also be referred to as Wraseneinzug, to the optimum height. The height of the screen elements around which they are raised above a suction duct varies and adapts to the situation.

The present invention has a number of advantages. In particular, the screen elements, which can also be referred to as plates or discs, drive less high than conventional downdraft devices and with the extractor device nevertheless a sufficient Wrasenfangrate be achieved. Since the screen elements are completely separated from each other and, for example, not connected to each other in the middle, the screen elements can also be brought separately in the desired position. Moreover, the separate screen elements, in particular, if they are made of glass, the optoelectronic device lends lightness in optical terms. This is further supported by the fact that, depending on the current conditions, if necessary only one screen element has to be raised. In particular, in the case of glass or plastic shielding elements, a working light can be integrated into the shielding elements, for example by light coupling. In addition, light for ambience and mood can be generated by the screen elements. The light is preferably coupled from below into the respective screen element. In addition, in the invention not only vapors over an upper horizontal gap but also laterally and optionally additionally centrally, that is to be sucked in from the front between two front discs. As a result, a better suction performance is achieved than with conventional downdrafts, which draw in fumes only from above. In addition, since the screen elements are releasably secured and thus can be removed without tools, the grease label can be improved, since the deposited on the screen elements impurities are calculated together with the impurities on filters.

REFERENCE NUMBERS

1

kitchen appliance

2

Exhaust hood

200

cover plate

20

suction gap

21

screen element

22, 22 '

screen element

23

cover

24

extraction well

25

mover

250

fastener

26

filter

27

lighting device

28

sensor

29

outlet

290

Air inlet opening

3

hob

4

cupboard

40

countertop

41

recess

T

pot

R

room wall

Claims (19)

Vapor extraction device with a suction duct (24), in the upper end of an air inlet opening and at least one outlet opening (29) is formed, and at least one in the suction duct (24) slidably mounted vaporizer with at least one suction gap (20), characterized in that the vaporizing consists of at least two planar shield elements (21, 22, 22 '), between the shield elements (21, 22, 22') of the suction gap (20) is formed, at least one of the at least two shield elements (21, 22, 22 ') in at least a position of the Wrasenfangs partially beyond an outlet opening (29) of the suction chute (24) protrudes and the at least two shielding elements (21, 22, 22 ') are releasably mounted in the suction chute (24). Vapor extraction device according to claim 1, characterized in that each screen element (21, 22, 22 ') to a fastening element (250), in particular a rail, is releasably secured, which is displaceably mounted in the suction duct (24). Vapor extraction device according to claim 2, characterized in that the fastening element (250) with a moving device (25) for vertical displacement of the at least one screen element (21, 22, 22 ') is connected. Vapor extraction device according to one of claims 1 to 3, characterized in that the at least two shielding elements (21, 22, 22 ') are mounted together displaceable relative to the suction duct (24). Vapor extraction device according to one of claims 1 to 4, characterized in that the extractor device (2) has three screen elements (21, 22, 22 '), of which two (22, 22') laterally adjacent to each other and to the third screen element (21) are arranged offset horizontally. Vapor extraction device according to one of claims 1 to 5, characterized in that one of the at least two shielding element (21, 22, 22 ') has a larger area than the at least one further shielding element (21, 22, 22'). Vapor extraction device according to one of claims 1 to 6, characterized in that lie in an operating position of the Wrasenfangs the upper edges of the at least two shield elements (21, 22, 22 ') at different heights above the outlet openings (29) of the suction duct (24). Vapor extraction device according to one of claims 1 to 7, characterized in that in the rest position or in an operating position of the Wrasenfangs a screen element (21, 22, 22 ') completely in the suction duct (24) is accommodated and at least one further screen element (21, 22 , 22 ') partially projects upwards beyond the outlet opening (29) of the suction chute (24). Vapor extraction device according to one of claims 1 to 8, characterized in that the suction gap (20) preferably at least along the upper edge of at least one of the screen elements (21, 22, 22 ') extends. Vapor extraction device according to one of claims 1 to 9, characterized in that the extractor device (2) has at least one sensor (28) for detecting the height of objects (T) and / or the Wrasenaufkommens in the vicinity of the extractor device (2). Vapor extraction device according to claim 10, characterized in that the extractor device (2) has a control unit which changes the orientation of the at least two screen elements (21, 22, 22 ') on the basis of the detected sensor data. Vapor extraction device according to claim 11, characterized in that on the basis of the detected sensor data, the amount by which at least one screen element (21, 22, 22 ') over the outlet opening (29) projects upwards, and / or the height difference of the upper edges the at least two shielding elements (21, 22, 22 ') is changed. Vapor extraction device according to one of claims 1 to 12, characterized in that the extractor device (2) comprises at least one lighting device (27). Vapor extraction device according to claim 13, characterized in that the extractor device (2) additionally comprises a light sensor (28), by means of which the height of objects (T) in the vicinity of the extractor device (2) can be detected. Kitchen appliance with at least one hob (3) and a fume extraction device (2), characterized in that the fume extraction device (2) represents a fume extraction device according to one of claims 1 to 14. Kitchen appliance according to claim 15, characterized in that the upper end of the suction chute (24) in the surface of the hob (3), preferably in the middle of the width of the surface of the hob (3). Method for operating a fume extractor according to one of claims 1 to 14, characterized in that the relative position of at least one screen element (21, 22, 22 ') to the outlet opening (29) and the relative position of the upper edges of the screen elements (21, 22 , 22 ') are adjusted to each other. A method according to claim 17, characterized in that at least the relative position of at least one screen element (21, 22, 22 ') to the outlet opening (29) in the transition from an operating position to another operating position of the extractor device (2) is changed. Method according to one of claims 17 or 18, characterized in that the adjustment of the positions of the at least two screen elements (21, 22, 22 ') is fully automatic, semi-automatic or manual.

Images