Extractor hood for a hob and kitchen furniture with extractor hood

Description

[0001] The invention relates to a ventilation device for a cooktop and a kitchen unit with a ventilation device.

[0002] It is known to provide a ventilation system for cooktops. This system extracts fumes and vapors that arise on the cooktop during cooking. Besides ventilation systems designed as extractor hoods and positioned above the cooktop, ventilation systems are also known that draw the fumes and vapors into the piece of furniture on or in which the cooktop is located.

[0003] Such a fume extraction device is disclosed, for example, in US 3,954,427 A. This document describes a ventilation and filter module for cooking units. The exhaust fan and motor, as well as suitable intake filters, are positioned in the lower part of the arrangement, and this lower part comprises one or more alternative intake modules arranged one above the other. The intake openings are located adjacent to cooking surfaces or other fume-generating parts. Grease filters are provided in the lower part.

[0004] Furthermore, DE10 2008 033 792 A1 describes a recirculation module for use with a range hood, which has a housing with at least one air inlet, at least one air outlet, and at least one odor filter. The recirculation module is characterized in that the housing has at least one air outlet and additionally at least one insertion opening for inserting at least one of the odor filters, and that at least one odor filter is assigned to each air outlet.

[0005] Further extractor hoods are described in FR 1,495,188 A, US 2012 / 0247345 A1, US 6,575,157 B1, US 3,665,914 A, EP 0 915 299 A2, CN 201 652 548 U, WO 2017 / 044834 A1, CN 106 322 472 A, CN 202 675 408 U and WO 2013 / 166445 A1.

[0006] Finally, another extractor hood is described, for example, in DE 20 2016 104 769 U1. In this design, an extraction opening is provided near the cooktop, which is connected via a duct to an extraction element to draw the fumes into the duct and release them outside the furniture through an outlet opening. The extraction element has a box-shaped body containing a centrifugal fan. The axis of rotation of the centrifugal fan is parallel to the vertical axis of the furniture. The fumes are drawn vertically from the duct and directed radially to an opening through which they are expelled.

[0007] One disadvantage of this extractor fan is that the noise from the centrifugal fan can escape through the exhaust vent during operation. Furthermore, the space required for the extractor fan within the piece of furniture is considerable.

[0008] The object of the present invention is therefore to provide a solution by which fumes and vapors can be reliably extracted from a cooktop, and with which a low noise level escapes from the extractor device, in particular from the extraction opening, while requiring little installation space.

[0009] The invention is based on the understanding that this problem can be solved by using odor filters for noise reduction. The odor filters are suitably arranged in relation to the fan of the extractor hood.

[0010] The problems are solved by the characterizing features of claim 1.

[0011] A cooktop extractor is a device used to extract fumes and vapors from a cooktop. The extractor has an extraction opening, preferably located in or near the cooktop. The extraction opening is located on the top of the extractor. This means that air enters the extractor from above, specifically through the extraction opening. A fan is arranged on the extractor, offset downwards from the extraction opening. Preferably, the fan is offset horizontally from the extraction opening, meaning that, when projected perpendicularly onto the opening, the fan is not located within the surface of the opening. The fan is preferably a radial fan. In particular, the fan comprises a fan housing.The fan housing has at least one air inlet opening, also referred to as the blower air inlet. The fan housing is preferably a worm gear or spiral housing. The fan's axis of rotation is perpendicular to the air inlet opening of the fan housing. The fan housing also has an air outlet opening through which air can escape radially. The air outlet opening of the fan housing is also referred to as the blower air outlet.

[0012] A connecting duct of the extractor fan runs between the fan and the extraction opening. The connecting duct can be located directly at the extraction opening. However, it is also within the scope of the invention to provide a grease filter unit at the extraction opening, extending downwards, with the connecting duct being linked to the extraction opening via the grease filter unit. Air is conveyed from the extraction opening to the fan via the connecting duct. The connecting duct can be a single piece, for example, made of plastic. Alternatively, the connecting duct can consist of duct or pipe sections connected to one another. These duct or pipe sections can also be made of plastic. Additionally or alternatively, the connecting duct can include hose elements or consist entirely of a hose.

[0013] The extractor fan is characterized in that at least one odor filter is arranged upstream of at least one air inlet opening of the fan in the direction of airflow. The direction of airflow is defined as the direction from the extraction opening to the fan. The at least one odor filter is therefore located between the extraction opening and the fan. In particular, the at least one odor filter is arranged upstream of an air inlet opening of the fan.

[0014] An activated carbon filter can be used as an odor filter, for example. This can be in the form of a mat or a molded body. According to one embodiment, the odor filter is a pleated activated carbon filter mat held in a frame. Odours can be removed from the extracted fumes and vapors via the odor filter. Additionally, a grease filter unit for filtering out grease at or in the area of ​​the extraction opening of the extractor hood is preferably provided in the extractor hood according to the invention. Expanded metal filters, for example, can serve as grease filters.

[0015] The extractor hood is preferably installed in a piece of furniture, also known as kitchen furniture. The extraction opening of the extractor hood is located in the area of ​​the top of the furniture, where the cooktop is usually installed.

[0016] Unless otherwise specified, directional terms such as top, bottom, front, and back refer to the extractor hood and its components in the installed state, i.e., when integrated into a piece of furniture, also known as kitchen furniture. When installed, the extraction opening of the extractor hood is preferably horizontal. The front of the furniture, the extractor hood, and its components is the side facing the user. The back is the side opposite the front and is usually against or facing a wall. The dimension in the direction between the front and back is called the depth, and the horizontal dimension perpendicular to it is called the width. The vertical dimension is called the height.

[0017] By arranging at least one odor filter in the direction of airflow upstream of the fan's air inlet in the extractor hood according to the invention, a number of advantages can be achieved. Firstly, the escape of odorous substances from the extractor hood can be reliably prevented. Since the odor filter is located upstream of the fan's air inlet and preferably near the fan, it can also be easily accessed by the user. The fan is located below the extraction opening in the extractor hood. Thus, the fan is situated in the area of ​​the piece of furniture where the cooktop, and therefore the extraction opening of the extractor hood, is located on the top surface. By opening the piece of furniture, for example by pulling out a drawer, the fan, and thus the at least one odor filter, can be made accessible to the user.Furthermore, the inclusion of at least one odor filter has the advantage that noise generated by the fan during air intake is dampened by the filter material. This minimizes the noise level perceptible to the user through the exhaust vent of the range hood.

[0018] According to the invention, the blower is housed in a blower casing that is connected to the connecting duct. The at least one odor filter is arranged in the blower casing. A blower casing is defined as a housing that has at least one air inlet opening and at least one air outlet opening and in which the blower is housed. The air inlet opening is connected to the connecting duct so that air, drawn in from the cooktop via the exhaust opening of the range hood, can enter the blower casing through the air inlet opening. The blower casing can have a box shape. The air inlet opening is preferably located in the top of the blower casing, and the air outlet opening is located in the lower part of the blower casing. The air outlet opening can be located in the underside of the blower casing or in the lower part of the outer wall of the appliance housing.In particular, in the latter embodiment, several air outlet openings are preferably provided on the blower housing.

[0019] By providing a blower housing, a reliable supply of air to the at least one air inlet opening of the fan housing, and thus into the blower, can be ensured. The air can be directed within the blower housing specifically to the at least one air inlet opening of the fan housing.

[0020] Preferably, at least one odor filter is arranged in the blower housing. The odor filter can be attached to the blower and / or to a wall of the blower housing. The odor filter is preferably attached in a detachable manner. For example, the odor filter can be inserted into a holder in the blower housing. By integrating the odor filter into the blower housing, its relative position to the blower, which is also located in the blower housing, can be easily ensured during assembly. Furthermore, the odor filter, which is provided in the blower housing, can be positioned near the air inlet opening of the blower and, in particular, the fan housing, thereby improving noise reduction.

[0021] According to a preferred embodiment, the blower is a radial blower, and its fan axis is horizontal. In this embodiment, the blower's diameter is vertical and thus perpendicular to a cooktop integrated into the top of a piece of furniture in which the extractor hood is incorporated. The fan axis can be horizontal, either parallel or perpendicular to a wall of the furniture, particularly the rear wall.

[0022] The dimensions of the blower along its axis can be smaller than its radial dimensions. In this embodiment, the blower can be positioned within the extractor fan such that its axis is horizontal and perpendicular to the rear wall of the furniture. The blower's air inlet is parallel to the rear wall of the furniture. In this embodiment, the odor filter is preferably located in front of the blower, i.e., on the side of the blower facing away from the rear wall. This allows the user of the extractor fan to access the odor filter from the front.

[0023] Preferably, the fan axis of the blower is parallel to the rear wall of the furniture. The blower's at least one air inlet opening is perpendicular to the rear wall of the furniture. The at least one odor filter is thus located next to the blower and is also accessible to the user of the extractor hood from the front. Even in this embodiment, the installation space required in the depth direction of the furniture is small, since the odor filter is located next to the blower and therefore does not increase the depth dimension of the extractor hood in the area of ​​the blower.

[0024] The storage space in the piece of furniture that is available after the installation of the extractor hood is therefore maximized.

[0025] According to a preferred embodiment, the blower is a dual-flow blower, and an odor filter is arranged upstream of each of the blower's air inlet openings in the direction of airflow. A dual-flow blower is defined as a blower with two air inlet openings. These air inlet openings are perpendicular to the fan axis and are located on opposite sides of the fan housing. Preferably, the dual-flow blower has only one fan. The dual-flow blower is preferably arranged such that the fan axis is parallel to the rear wall of the furniture. Thus, the blower's air inlet openings are perpendicular to the rear wall of the furniture. The odor filter(s), which are arranged upstream of the respective air inlet opening in the direction of airflow, are therefore located to the side of the blower and are accessible to the user of the extractor fan from the front.

[0026] By using a dual-flow fan, a smaller diameter fan can be used for the same performance. This further maximizes the storage space in the piece of furniture where the extractor hood is integrated. Additionally, the air intake openings of the dual-flow fan can be smaller than those of a single-flow fan. Even with smaller odor filters, reliable noise reduction can be achieved by placing the filters in front of the air intake openings. Furthermore, a dual-flow fan allows for the reliable extraction of fumes and vapors even at lower fan speeds. This further reduces noise during air intake.

[0027] According to one embodiment, the odor filter completely covers the air inlet opening of the blower in the direction of airflow. In particular, the odor filter has a size that is equal to or larger than the area of ​​the blower's air inlet opening. The odor filter completely covers the air inlet opening when projected perpendicularly onto it. For this purpose, the odor filter is preferably positioned in the immediate vicinity of the air inlet opening.

[0028] According to the invention, the odor filter is arranged at an angle to the surface of the blower's air inlet opening. An angled arrangement is defined as an orientation of the odor filter where the angle between the fan axis and the surface of the odor filter is not equal to 90°. By arranging the odor filter at an angle, its surface area can be increased. This improves both the filtration of odors and the noise reduction.

[0029] According to the invention, the odor filter rests against the fan housing of the blower, at least in certain areas, such that its upper edge rests against the fan housing above the air inlet opening. The lower edge, which is problematic with an inclined odor filter relative to the fan housing, can, for example, rest on the bottom of the blower housing. Furthermore, the outer edge of the odor filter can rest against a wall of the blower housing in which the blower is housed. The embodiment in which the odor filter rests against the fan housing, at least in certain areas, has the advantage that the design of the exhaust system is simplified, since a separate holder for the odor filter is not required. Instead, the holder can be formed directly on the fan housing.Furthermore, the placement of the odor filter on the fan housing has the advantage that accidental airflow past the odor filter can be prevented and unwanted noise emission cannot occur.

[0030] According to one embodiment, at least one wall of the fan housing is detachably attached. In particular, the front wall of the fan housing is detachably connected to the other side walls of the fan housing. The front wall is defined as the wall that, in the assembled state, is closest to the user of the extractor fan. In an extractor fan integrated into a piece of furniture, the front wall of the fan housing thus faces away from the rear wall of the furniture. By detachably connecting at least one wall, in particular the front wall of the fan housing, to the rest of the fan housing, it can be removed by the user. This allows access to the components housed within the fan housing. In particular, the user can access, remove, or replace the odor filters, which are preferably housed within the fan housing.

[0031] Alternatively or in addition to a detachable fastening, one or more recesses can be provided in the front panel to allow access to the odor filters. In particular, the recesses can each have a shape that corresponds to the shape of the odor filter. For example, the recesses can be rectangular, allowing a box-shaped odor filter to be inserted into the blower housing from the front.

[0032] According to a further embodiment, an air guide element is provided in the blower housing to split the airflow from an air inlet opening of the blower housing to the at least two air inlet openings of the blower. The air guide element is preferably arranged above the blower in the blower housing. This embodiment is particularly preferred for a blower that is a dual-flow blower. The air guide element directs the airflow entering the blower housing through the air inlet opening to the two air inlet openings of the fan housing. By directing the air to the air inlet openings of the blower, the noise level in the extractor hood can be further reduced.Particularly in the case of a blower where at least one air inlet opening is vertical, redirecting the vertically directed airflow entering the blower housing is necessary to ensure reliable intake. The air guide element can, for example, be a roof-shaped metal plate. The air guide element can also serve as a cover for other blower components, such as the electronics. According to another embodiment, the air guide element is designed such that holders for an odor filter are provided at each of its ends. This reduces the number of parts in the exhaust system.

[0033] According to one embodiment, the extractor hood has at least one vertical air outlet. This air outlet is preferably located in the lower part of the extractor hood, and in particular below the fan. The air outlet can, for example, be located in the lower part of the fan housing. Because the air outlet is vertical, the air exiting the extractor hood can be discharged to the sides, forward, or, if necessary, to the rear.

[0034] According to a further embodiment, a distribution chamber is connected downstream of the blower's air outlet opening in the direction of airflow. In the distribution chamber, the air is directed from the blower's air outlet opening to at least one air outlet opening of the extractor hood and, in particular, of the blower housing. The distribution chamber preferably forms the lower part of the blower housing and is integrally designed with it. In this case, the blower housing can have an intermediate floor that separates the area of ​​the blower housing containing the blower and preferably the odor filter(s) from the distribution chamber. Alternatively, the distribution chamber can be a separate component extending downwards from the area of ​​the blower housing containing the blower and the at least one odor filter. In this case as well, the distribution chamber is referred to as part of the blower housing.The distribution chamber can be a duct consisting of a top wall and a bottom, open at the sides. In this embodiment, a grille, for example, can be provided on the sides. In this embodiment, the open sides of the distribution chamber represent the air outlet openings of the extractor hood. However, it is also possible for the distribution chamber to have a closed cross-section, with the air outlet openings of the extractor hood being located, for example, only at the sides of the extractor hood as the ends of the duct.

[0035] According to the invention, the air outlet opening of the blower is preferably directed downwards. By providing a distribution chamber, the air exiting the blower can be deflected and thus directed to vertically oriented air outlet openings of the extractor hood.

[0036] According to a preferred embodiment, the distribution space is at least partially delimited by insulating elements, which can also be referred to as damping elements. The insulating element can be an insulating panel or a shaped body.

[0037] The insulating element is preferably made of foam. According to one embodiment, at least one or more insulating elements are provided on the floor of the distribution chamber. The insulating element or elements can cover the entire floor area. At a minimum, the insulating element or elements cover the area below the air outlet of the blower. With a horizontal air outlet of the blower, the air exiting the blower flows vertically downwards. By providing at least one insulating element on the floor of the distribution chamber, which adjoins the blower's air outlet below, the noise generated by the exiting and redirecting of the exiting air can be dampened. According to another embodiment, at least one insulating element is also provided on the top of the distribution chamber.Preferably, the air outlet opening of the blower is located in the upper insulating element within the distribution chamber. An upper insulating element, preferably extending from the air outlet opening to the air outlet opening of the extractor fan, minimizes noise generated during airflow within the distribution chamber.

[0038] According to a further aspect, the present invention relates to a kitchen unit with at least one cooktop. The kitchen unit is characterized in that at least one extractor hood according to the invention is integrated into the kitchen unit.

[0039] Advantages and features described with regard to the extractor hood also apply – insofar as applicable – to the kitchen furniture according to the invention and vice versa, and are therefore only described once if necessary.

[0040] According to the invention, a kitchen cabinet, specifically a base cabinet of the kitchen, is referred to as kitchen furniture. The kitchen cabinet can be integrated into a kitchen unit or form a cooking island. The kitchen furniture is also referred to as a piece of furniture in the following. According to the invention, a cooktop is provided in the kitchen furniture. The cooktop is preferably integrated into or mounted on a worktop of the kitchen furniture. The cooktop can, for example, be an induction cooktop.

[0041] According to the invention, at least one extractor hood is integrated into the kitchen furniture, which is designed according to the present invention. Integration here refers to the installation of the extractor hood in the kitchen furniture. The extractor hood can project at least partially beyond the boundary walls of the kitchen furniture, in particular the floor.

[0042] According to the invention, the extractor hood has an extraction opening. The extraction opening can be located within the cooktop, for example, in the center of the cooktop. The extraction opening can extend over the depth of the cooktop. The extraction opening can be rectangular or round. However, according to the present invention, it is also possible for the extraction opening to be located adjacent to the cooktop. For example, an extraction opening of the extractor hood can be provided at each side edge of the cooktop. It is also possible to provide an extraction opening at the front or rear edge of the cooktop.

[0043] According to a preferred embodiment, the hob is arranged in the top of the kitchen furniture and the extraction opening of the extractor fan is located in the area of ​​the hob.

[0044] According to a preferred embodiment, the blower is located in the rear area of ​​the kitchen unit. Thus, the blower is preferably positioned further back relative to the extraction opening of the extractor hood. Particularly preferably, the blower is located near the rear wall of the kitchen unit. According to the invention, a connecting channel is provided between the extraction opening and the blower. With the blower positioned further back relative to the extraction opening, the connecting channel therefore has a path with bends. In particular, the connecting channel preferably extends downwards from the extraction opening, then transitions into a section running parallel to the extraction opening. A further bend follows this parallel section, through which the connecting channel transitions into a vertically downward-running section.The vertically downward-running section lies parallel to the back wall of the kitchen cabinet. The lower end of the vertically running section of the connecting channel is preferably connected to a fan housing.

[0045] According to a preferred embodiment, the extractor hood therefore has a fan housing that is located at least partially in the lower part of the kitchen cabinet. The fan housing can be completely integrated into the kitchen cabinet. In this case, the air outlet of the fan housing can be located at an opening in the base of the kitchen cabinet. However, it is particularly preferred that the fan housing extends through the base of the kitchen cabinet. Kitchen cabinets generally have feet that raise the base of the kitchen cabinet above the floor of the room in which the kitchen cabinet stands. The portion of the fan housing that extends downwards beyond the base of the kitchen cabinet preferably forms a distribution chamber. The side walls of this distribution chamber have openings that serve as air outlets for the extractor hood.The air outlet openings can be located in the side walls and / or front of the distribution compartment. If the furniture is not mounted on a wall, the air outlet openings can also be located at the rear of the distribution compartment. The base of the blower housing can rest on the floor, i.e., the kitchen floor. However, it is also within the scope of the invention for the blower housing to terminate at a distance from the floor. In this case, the blower housing is preferably attached to the kitchen furniture, for example, to the base of the kitchen furniture.

[0046] Even in the embodiment where the blower housing extends downwards across the base of the kitchen unit, the blower is preferably arranged inside the unit, i.e., above the base. By arranging the blower inside the unit, the noise generated by the blower is dampened by the walls of the unit. This reduces the overall noise level perceptible to the user. In particular, the odor filter(s) prevent noise from escaping through the exhaust opening of the range hood, and other blower noises, such as vibration noise, are dampened by the walls of the unit.

[0047] The present invention will be explained in more detail below with reference to the accompanying figures. These show: Figure 1: A schematic top view of an embodiment of a kitchen unit with a ventilation device according to the invention; Figure 2: A schematic representation of the lower area of ​​the fan housing of an embodiment of the ventilation device according to the invention; Figure 3: A schematic perspective view of an embodiment of the ventilation device according to the invention; Figure 4: A schematic sectional view of an embodiment of the kitchen unit according to the invention with a ventilation device according to the invention; Figure 5: A schematic perspective view of the embodiment of the ventilation device according to Figure 3 in the area of ​​the blower housing; and Figure 6: a schematic, perspective sectional view of the embodiment of the extractor fan in the area of ​​the blower housing according to Figure 5 .

[0048] In the Figure 1Figure 1 shows a schematic top view of an embodiment of a kitchen unit 1 with a ventilation device 3 according to the invention. The kitchen unit 1 has a worktop 10 in which a cooktop 2 is integrated. In the illustrated embodiment, a recess 20 is provided in the cooktop 2. The recess 20 extends centrally in the depth direction of the cooktop 2 and has a rectangular, elongated shape. A connecting duct 34 of the ventilation device 3 is shown below the cooktop 2. The connecting duct 34 has a dimension that corresponds to the length of the recess 20. Thus, the recess 20 provided in the cooktop 2 corresponds to the extraction opening 30 of the ventilation device 3. From the extraction opening 30, the connecting duct 34 preferably extends downwards from the cooktop 2. Figure 1(not visible). A grease filter unit is preferably arranged in this area of ​​the connecting channel or as a separate component. The connecting channel 34 then runs parallel to the extraction opening 30 and extends towards one side of the cooktop 2. From this section of the connecting channel 34 running parallel to the extraction opening, the connecting channel 34 transitions into a vertically downward-running section. A fan housing 31 of the extractor hood 3 is provided below the vertical section. The vertical section of the connecting channel 34 and the fan housing 31 are located against the rear wall of the kitchen cabinet 1. As can be seen from the view in Figure 1 This results in the width of the blower housing 31 being greater than the width of the connecting channel 34 in its vertically running area. Furthermore, it follows from the Figure 1, that the width and depth of the blower housing 31 are greater than the width and depth of the air inlet opening 314 of the blower housing 31. The front of the blower housing 31 is formed, at least in the lower part of the blower housing 31, by a front wall 310.

[0049] In the Figure 2 Figure 1 shows a schematic representation of the lower area of ​​the blower housing 31 of an embodiment of the exhaust hood 3 according to the invention. Figure 2Figure 31 shows a schematic front view of the components in the blower housing 31. In particular, a blower 32 is housed in the blower housing 31. In the illustrated embodiment, the blower 32 is a dual-flow blower. Therefore, two air inlet openings 321 are provided in the fan housing 320 of the blower 32. The air inlet openings 321 are perpendicular to the fan axis 322 of the blower 32. The fan axis 322 is horizontal. Adjacent to each air inlet opening 321, outside the fan housing 320 and in front of each air inlet opening 321, is an odor filter 33. In the illustrated embodiment, the odor filters 33 each have a box shape. The odor filters 33 are arranged at an angle to their respective air inlet openings 321. According to the invention, the upper edge of the odor filter 33 lies above the air inlet opening 321 against the fan housing 320 of the blower 32.According to the invention, the lower edge of the odor filter 33 rests on an intermediate floor of the blower housing 31, which separates the blower area 32 from a distribution chamber 312 below. Furthermore, the outer edge of the odor filter 33 rests against the side wall of the blower housing 31. The fan housing 320 has an outlet nozzle through which the air outlet opening 323 of the fan housing 320 is formed. In the illustrated embodiment, the outlet nozzle of the fan housing 320 projects through the intermediate floor of the blower housing 31. A distribution chamber 312 is located below the intermediate floor of the blower housing 31. The distribution chamber 312 is fluidically connected to the interior of the fan housing 320 via the air outlet opening 323 of the fan housing 320. In the illustrated embodiment, the floor 317 of the distribution room 312 is covered by an insulating element 316.An insulating element 315 is also provided on the top of the distribution chamber 312. The insulating element 315 extends over the entire surface of the top of the distribution chamber 312 inside the distribution chamber 312 and is penetrated by the outlet nozzle of the fan housing 320.

[0050] The arrows S indicate the Figure 2 The airflow resulting in the blower housing 31 is indicated. Air inlet opening 314 is provided above the blower 32 (in Figure 2Air is drawn in by the blower 32 (not shown). The air first passes through the two odor filters 33 before entering the air inlet openings 321 of the fan housing 320. The air is conveyed via the fan wheel (not shown) to the outlet nozzle and leaves the fan housing 320 through the air outlet opening 323. The air thus discharged is redirected in the distribution chamber 312 and directed horizontally to the air outlet openings 313 of the blower housing 31 and thus to the air outlet openings 313 of the extractor hood 3.

[0051] In Figure 3Figure 1 shows a schematic perspective view of an embodiment of the extractor hood 3 according to the invention. This view shows that a grease filter unit 35 extends downwards from the extraction opening 30. A connecting channel 34 adjoins the grease filter unit 35. In the illustrated embodiment, the connecting channel 34 initially has a horizontally extending section. A deflection is located on the rear side of the horizontally extending section, through which the connecting channel 34 transitions into a vertically extending downwards. The lower end of the connecting channel 34 rests on the top of a blower housing 31. In particular, the air inlet opening 314 of the blower housing 31 is located inside the lower end of the connecting channel 34.

[0052] In the illustrated embodiment, the blower housing 31 has a box shape. A step is provided in the front of the blower housing 31. This step increases the depth of the blower housing 31 from an upper area, where the air inlet opening 314 is located, to a lower area. An air guide element 311 is provided in the upper area of ​​the blower housing 31. The air guide element 311 has a roof shape and is arranged centrally below the air inlet opening 314. The air guide element 311 thus splits the airflow entering the blower housing 31 through the air inlet opening 314. In the lower area of ​​the blower housing 31, which has a greater depth, the blower (in Figure 3 (not visible) and two odor filters 33 are included. The front wall 310 of the blower housing 31, which is preferably detachably fastened, is in Figure 3The front wall 310 has recesses through which the odor filters 33 can be inserted into the blower housing 31. The distribution chamber 312 is visible below the blower 33. In the illustrated embodiment, this constitutes a separate component. Specifically, the distribution chamber 312 is formed by a frame that has a base and struts projecting upwards at the corners. In the illustrated embodiment, the air outlet opening 313 of the blower housing 31, and thus of the exhaust system 3, extends over the entire depth of the blower housing 31, as well as over the front and rear of the distribution chamber 312. In the illustrated embodiment, a baffle 36 is shown in the front central area of ​​the distribution chamber 312, which prevents air from exiting over the central front area of ​​the distribution chamber 312. This protects the user from drafts.In the distribution chamber 312, an upper and a lower insulation element 315, 316 are arranged. The lower insulation element 316 covers the floor 317 of the distribution chamber 312, and the upper insulation element 315 is arranged on the top of the distribution chamber 312. The insulation elements 315, 316 are formed by mats or panels, which preferably consist of foam material.

[0053] In the Figure 4 Figure 1 shows a schematic sectional view of an embodiment of the kitchen furniture 1 according to the invention, including a ventilation device 3 according to the invention. As can be seen from the figure 1, the kitchen furniture 1 is a schematic sectional view of an embodiment of the kitchen furniture 1 according to the invention, including a ventilation device 3 according to the invention. Figure 4As a result, the vertically extending section of the connecting channel 34 is located in the rear area of ​​the kitchen unit 1. The depth of the connecting channel is limited. The blower housing 31 is arranged below the connecting channel 34. In the illustrated embodiment, this extends through the base 13 of the kitchen unit 1 to the floor B of the kitchen. In the illustrated embodiment, the kitchen unit 1 has a worktop 10. Drawers are provided in the front of the kitchen unit 1. The drawers comprise compartments 11 and 12, which extend into the interior of the kitchen unit 1 and are slidably mounted. In the illustrated embodiment, the depth of the upper compartment 11 is greater than the depth of the lower compartment 12. The upper compartment 11 is located at the same level as the vertical section of the connecting channel 34 in the rear area of ​​the kitchen unit 1.The lower drawer 12 is located at the same height as the fan housing 31 of the extractor hood 3 runs inside the kitchen cabinet 1. The base 13 of the kitchen cabinet is offset upwards from the floor B of the kitchen and is held by a foot 14. In the . Figure 4 Only one foot 14 is visible, but it is also within the scope of the invention and is preferred that at least two feet, preferably four feet 14, are provided on the base 13 of the kitchen furniture 1. In the embodiment according to Figure 4 The distribution chamber 312 is shown as an integral part of the blower housing 31. However, the distribution chamber 312 can also be provided as a separate component. The distribution chamber 312 is located in the area where the blower housing 31 extends downwards over the base 13 of the kitchen cabinet 1. Thus, air can be blown out below the base 13 of the kitchen cabinet 1 via the air outlet openings (not shown).

[0054] In Figure 5Figure 1 shows a schematic perspective view of an embodiment of a cooker hood 3 in the area of ​​the blower housing 31. This embodiment shows the blower housing 31 as it is configured in the embodiment of the cooker hood 3. Figure 3 is shown. In the Figure 5 It can also be seen that an inlet nozzle is provided on the top of the blower housing 31, the upper end of which serves as the air inlet opening 314 of the blower housing 31. Furthermore, in the Figure 5 The electronics 324 of the blower 32 are indicated. The electronics 324 are located above the blower housing 320. Furthermore, it can be seen from Figure 5 It can be deduced that the odor filter 33 is a pleated odor filter. The frame visible on the right odor filter 33 is not shown on the left odor filter 33. Furthermore, it can be deduced from the Figure 5It can be deduced that the walls of the distribution chamber 312 are formed by a grille. The air outlet opening 313 is thus formed by the spaces between the struts of the grille.

[0055] In Figure 6 Figure 3 is a schematic perspective sectional view of the embodiment of the extractor fan 3 in the area of ​​the blower housing 31 according to Figure 5 As shown in this sectional view, the air guide element 311 is positioned centrally below the air inlet opening 314. The roof-shaped air guide element 311 covers the electronics 324 from above. The blower 32 is located below the electronics 324. Figure 6The air outlet opening 323 of the fan housing 320 is formed by an outlet nozzle. The outlet nozzle protrudes into the distribution chamber 312. The outlet nozzle protrudes through the upper insulating element 315. The bottom 317 of the distribution chamber 312 is covered by the lower insulating element 316. The odor filters 33 are located at the air inlet openings (in Figure 6 (not visible) arranged at an angle.

[0056] Preferably, the present invention uses a double-flow blower installed in a blower housing. Two odor filters, in particular activated carbon filters, are installed upstream of the blower's air inlet. Additionally, a sound-absorbing mat can be integrated at the blower outlet. This mat is positioned perpendicular to the airflow exiting the blower.

[0057] The present invention is not limited to specific dimensions of the extractor hood or the kitchen cabinet. According to one embodiment, however, the depth of the kitchen cabinet can be, for example, 600 mm. The extraction opening can, for example, be located in a recess of a cooktop and have a depth of 520 mm. The distance between the rear wall of the kitchen cabinet and the extraction opening can, for example, be 50 mm. The height between the extraction opening and the lower end of a horizontally extending section of the connecting duct can, for example, be 170 mm. The depth of the vertically extending section of the connecting duct can, for example, be 100 mm. The depth of the fan housing can, for example, be 230 mm. In this embodiment, an upper drawer can, for example, have a depth of 450 mm and a lower drawer a depth of 340 mm.If the depth of the kitchen unit, in particular the depth of the worktop, is, for example, 700 mm or more than 900 mm, the upper drawer can have a depth of either 550 or 600 mm. In this configuration, the lower drawer can have a depth of, for example, 440 or 600 mm.

[0058] Such great depths of the lower drawer are not possible with extractor hoods according to the prior art. Due to the vertical orientation of the fan axis of the blower, which is usually located under the kitchen cabinet, i.e., below the base of the cabinet, a housing in which such a blower is accommodated typically has a depth of 400 mm. To ensure an air supply to the blower, a connection between a narrower connecting duct and the large blower housing is required. For this reason, with extractor hoods according to the prior art, a drawer in the lower area of ​​the kitchen cabinet can have a maximum depth of 280 mm.

[0059] The present invention offers several advantages. In particular, it provides an integrated solution. Furthermore, the odor filters can be easily replaced in the inventive arrangement. The surface area of ​​the odor filters can also be maximized by arranging them upstream of the blower, and especially upstream of the air inlet opening of the fan housing, in the direction of airflow. The present invention enables a very low noise level. The activated carbon filter, also known as the odor filter, reduces the blower's intake noise by approximately 2 dB(A). If additional sound-absorbing elements are provided in the distribution chamber, the absorption material used, which could be, for example, a mat, further reduces the noise.

[0060] In contrast to prior art extractor hoods, the extractor hood according to the invention uses a fan that is both quiet and can be easily soundproofed. Furthermore, the filter in the present invention is easily accessible. In particular, no modification of the base of a kitchen unit is necessary. REFERENCE MARK

[0061] 1 Kitchen furniture 10 Worktop 11 Drawer 12 Drawer 13 Base 14 Foot 2 Hob 20 Recess 3 Extractor hood 30 Extraction opening 31 Blower housing 310 Front wall 311 Air guide element 312 Distribution chamber 313 Air outlet opening 314 Air inlet opening 315 Upper insulation element 316 Lower insulation element 317 Base 32 Blower 320 Fan housing 321 Air inlet opening 322 Fan shaft 323 Air outlet opening 324 Electronics 33 Odor filter 34 Connecting duct 35 Grease filter unit 36 ​​Cover S Flow direction B Room floor

Claims

1. Vapour extraction device for a hob, which has at least one suction opening (30) in the upper side, a blower (32) arranged offset downwards with respect to the suction opening (30) and a connection channel (34) between the suction opening (30) and the blower (32), wherein at least one odour filter (33) is arranged in the direction of flow in front of at least one air inlet opening (321) of the blower (30), wherein the vapour extraction hood has a blower housing (31), in which a fan housing (320) is accommodated with the blower (32), characterised in that the odour filter (33) is arranged tilted with respect to the surface of the air inlet opening (321) of the blower (32) and the odour filter (33) rests at least in sections on the blower housing (320) of the blower (32) such that the odour filter (33) rests with the upper edge on the blower housing (320) above the air inlet opening (321), that the odour filter (33) rests with an outer edge on a wall of a blower housing (31), and that the odour filter (33) rests with a lower edge on a base (317) or on an intermediate base of the blower housing (31).

2. Vapour extraction device according to claim 1, characterised in that the blower (32) is accommodated in a blower housing (31) which is connected to the connection channel (34) and the at least one odour filter (33) is arranged in the blower housing (31).

3. Vapour extraction device according to one of claims 1 or 2, characterised in that the blower (32) represents a radial blower and the fan axis (322) of the blower (32) in the vapour extraction device (3) lies in the horizontal.

4. Vapour extraction device according to one of claims 1 to 3, characterised in that the blower (32) represents a double-flow blower (32) and at least one odour filter (33) is arranged in the direction of flow in front of each of the air inlet openings (321) of the blower (32).

5. Vapour extraction device according to one of claims 1 to 4, characterised in that the odour filter (33) completely covers the air inlet opening (321) of the blower (32) in the direction of flow.

6. Vapour extraction device according to one of claims 2 to 5, characterised in that the front wall (310) of the blower housing (31) is detachably fastened at least in sections.

7. Vapour extraction device according to one of claims 4 to 6, characterised in that in the blower housing (31) there is an air guiding element (311) for splitting the air flow from an air entry opening (314) of the blower housing (31) to form the at least two air inlet openings (321) of the blower (32) and the air guiding element (311) is arranged above the blower (32) in the blower housing (31).

8. Vapour extraction device according to one of claims 1 to 7, characterised in that the vapour extraction device (3) has at least one air outlet opening (313) which stands in the vertical.

9. Vapour extraction device according to one of claims 2 to 8, characterised in that the air outlet opening (323) of the blower (32) is downstream in the direction of flow of a manifold space (312), in which the air from the air outlet opening (323) of the blower (32) is guided to at least one air outlet opening (321) of the blower housing (320) and which lies in the lower region of the blower housing (32).

10. Vapour extraction device according to claim 9, characterised in that the manifold space (312) is at least partially delimited by damping elements (315, 316).

11. Kitchen unit with at least one hob, characterised in that at least one vapour extraction device (3) according to one of claims 1 to 10 is integrated in the kitchen unit (1).

12. Kitchen unit according to claim 11, characterised in that the hob (2) is arranged in the upper side of the kitchen unit (1), the suction opening (30) of the vapour extraction device (3) lies in the region of the hob (2) and the blower (32) lies in the rearward region of the kitchen unit (1).

13. Kitchen unit according to one of claims 11 or 12, characterised in that the vapour extraction device (3) has a blower housing (31) which is arranged at least in sections in the lower region of the kitchen unit (1) and extends at least partially through the base (13) of the kitchen unit (1).

14. Kitchen unit according to one of claims 11 to 13, characterised in that the blower (32) of the vapour extraction device (3) lies above the base (13) of the kitchen unit (1).