EP3710756A1

EP3710756A1 - Range hood device for a cooktop and kitchen furniture with range hood device

Info

Publication number: EP3710756A1
Application number: EP18796689.0A
Authority: EP
Inventors: Aurélien CHARTREL; Priscilla HYDIER; Henri Klein; Florent LAGORGETTE; Guillaume LAURENT
Original assignee: BSH Hausgeraete GmbH
Current assignee: BSH Hausgeraete GmbH
Priority date: 2017-11-17
Filing date: 2018-11-09
Publication date: 2020-09-23
Also published as: WO2019096701A1

Abstract

The present invention relates to a range hood device for a cooktop, which range hood device has at least one evacuation opening (30) in the upper side, a fan (32) which is offset toward the bottom relative to the evacuation opening (30) and a connecting channel (34) between the evacuation opening (30) and the fan (32). The range hood device (3) is characterized in that at least one odor filter (33) is provided upstream of the at least one air inlet opening (321) of the fan (30) in the direction of flow. In addition, the invention relates to kitchen furniture having at least one cooktop. The kitchen furniture (1) is characterized in that at least one such range hood device (3) is integrated into the kitchen furniture (1).

Description

Extractor device for a hob and kitchen furniture with

Exhaust hood

The invention relates to a fume extraction device for a hob and a kitchen furniture with a fume extraction device.

It is known in hobs to provide a fume extraction device. This is used to extract the fumes and vapors that form on a hob during a cooking process. Apart from extractor devices, which are designed as an extractor hood and are arranged above the hob, also extractor devices are known, via which the vapors and vapors are sucked into the piece of furniture, on or in which the hob is provided.

Such a vapor extraction device is described for example in DE 20 2016 104 769 U1. In the vicinity of the hob, in this case, a suction opening is provided, which is connected via a line to a suction device to suck the vapors into the line and to let them outside the piece of furniture through an outlet opening. The suction device has a box-shaped body in which a centrifugal fan is accommodated. The axis of rotation of the centrifugal blower is parallel to the vertical axis of the piece of furniture. Hereby, the vapors are sucked from the line in the vertical direction and directed in the radial direction to an opening through which the vapors are ejected.

A disadvantage of this extractor device is that the noise of the centrifugal blower can escape through the suction opening during operation of the extractor device. In addition, the space required for the extractor device within the furniture is large.

It is therefore an object of the present invention to provide a solution by means of which fumes and vapors can be sucked off a cooktop in a reliable manner, and with which a small noise level from the extractor device, in particular from the suction opening, emerges with the required minimum installation space. The invention is based on the finding that this object can be achieved by using odor filters for noise reduction. The odor filters are arranged with respect to the fan of the extractor device suitable.

According to a first aspect, the object is achieved by a fume extraction device for a hob, which has in the upper side at least one suction opening, a blower arranged offset downwards to the suction opening and a connecting channel between the suction opening and the blower. The extractor device is characterized in that at least one odor filter is arranged in the flow direction in front of at least one air inlet opening of the fan.

As extractor device for a hob, a device is referred to by means of which fumes and fumes can be sucked from a hob. The extractor device has a suction opening, which preferably lies in or in the vicinity of the hob. At the extractor device, the suction opening is provided in the top. This means that air enters the extractor device from above via the extractor device and in particular the extraction opening. At the extractor device, a fan is arranged offset to the suction opening downwards. Preferably, the fan is located in the horizontal direction offset from the suction opening, i. that the fan is not in the area of the suction opening in the vertical projection on the suction opening. The fan is preferably a radial fan. In particular, the fan comprises a fan which is accommodated in a fan housing. The fan housing has at least one air inlet opening, which is also referred to as the air inlet opening of the fan. The fan housing preferably represents a worm housing or spiral housing. The axis of rotation of the fan is perpendicular to the air inlet opening of the fan housing. In addition, an air outlet opening is provided on the fan housing, through which air can escape from the fan housing in the radial direction. The air outlet opening of the fan housing is also referred to as the air outlet opening of the fan.

Between the blower and the suction opening runs a connecting channel of the extractor device. The connecting channel can directly adjoin the suction opening. However, it is also within the scope of the invention for a grease film to be present at the suction opening. is provided, which extends downwards and the connecting channel is connected via the grease filter unit with the suction opening. Air is directed from the suction port to the blower via the connecting duct. The connecting channel may be a one-piece channel, which may for example consist of plastic. Alternatively, the connecting channel may consist of channel or pipe pieces which are connected to each other. These duct or pipe sections may be made of plastic. Additionally or alternatively, the connecting channel may comprise hose elements or consist of a hose.

The extractor device is characterized in that at least one odor filter is arranged in the flow direction in front of at least one air inlet opening of the blower. The flow direction is the direction from the suction opening to the blower. The at least one odor filter thus lies between the suction opening and the blower. In particular, the at least one odor filter is arranged in front of an air inlet opening of the blower.

As an odor filter, for example, an activated carbon filter can be used. This may for example have the shape of a mat or a shaped body. In one embodiment, the odor filter is a pleated charcoal filter mat held in a frame. The odor filter can be used to remove odors from the sucked-in fumes and vapors. In addition, in the case of the extractor device according to the invention, a grease filter unit is preferably provided for filtering out fat at the suction opening or in the region of the suction opening of the extractor device. For example, expanded metal filters can serve as a grease filter.

The extractor device is preferably installed in a piece of furniture, which is also referred to as kitchen furniture. In this case, the suction opening of the extractor device lies in the area of the upper side of the piece of furniture in which the hob is usually inserted.

Directional information such as above, below, front and back refer, unless otherwise stated, to the extractor device and its components in the mounted, ie in a piece of furniture, which is also referred to as kitchen furniture, installed state. In the assembled state, the suction opening of the extractor device is preferably in the horizontal. The front of the piece of furniture and the extractor device and its components is the user-facing side. The rear side represents the side facing away from the front and is usually facing a room wall or is applied to this. The dimension in the direction between the front and the back is referred to as depth, and the dimension perpendicular to it in the horizontal is called width. The dimension in the vertical is called height.

By arranging at least one odor filter upstream of the air inlet opening of the blower in the extractor device according to the invention, a number of advantages can be achieved. Firstly, the escape of odors from the extractor device can be reliably prevented. Since the odor filter is arranged in front of the air inlet opening of the blower and preferably in the vicinity of the blower, this can also be made easily accessible to the user. The fan is provided below the suction opening in the extractor device. Thus, the fan is in the range of the piece of furniture in which the hob and thus the suction opening of the extractor device are in the top. By opening the piece of furniture, for example by pulling out a drawer, the fan and thus the at least one odor filter for the user can be made accessible. In addition, the provision of at least one odor filter has the advantage that noises which arise on the blower when sucking in air are damped by the material of the odor filter. As a result, the noise level, which is perceptible to the user via the suction opening of the extractor device, can be minimized.

According to a preferred embodiment, the fan is accommodated in a fan housing, which is connected to the connecting channel. The at least one odor filter is preferably arranged in the fan housing. As a blower housing, a housing is referred to, which has at least one air inlet opening and at least one air outlet opening and in which the blower is received. The air inlet opening is in this case connected to the connecting channel, so that air can enter the blower housing via the air inlet opening, which has been sucked in via the suction opening of the extractor device from the hob. The fan housing may have a box shape. The air inlet opening is preferably in the top of the Blower housing provided and the air outlet opening is located in the lower region of the blower housing. In this case, the air outlet opening can be located in the underside of the blower housing or be provided in the lower area of the outer wall of the device housing. In particular, in the latter embodiment, a plurality of air outlet openings are preferably provided on the fan housing.

By providing a blower housing, reliable supply of air to the at least one air inlet opening of the blower housing and thus into the blower can be ensured. The air can be directed in the blower housing targeted to the at least one air inlet opening of the fan housing.

Preferably, the at least one odor filter is arranged in the fan housing. The odor filter may be attached to the fan and / or attached to a wall of the fan housing. The attachment of the odor filter is preferably a releasable attachment. For example, the odor filter can be inserted into a holder in the fan housing. By accommodating the odor filter in the blower housing, its relative position to the blower, which is also provided in the blower housing, can be ensured in a simple manner during assembly. In addition, the odor filter, which is provided in the fan housing, in the vicinity of the air inlet opening of the fan and in particular the fan housing can be arranged, whereby the noise attenuation is improved by the odor filter.

According to a preferred embodiment, the fan is a radial fan and the fan axis of the fan, that is the fan of the fan, lies in the horizontal len. In this embodiment, therefore, the diameter of the fan is in the vertical len and thus perpendicular to a hob, which is in the top of a piece of furniture, in which the extractor device is integrated, is introduced. In this case, the fan axis can lie in the horizontal plane parallel or perpendicular to a wall of the piece of furniture, in particular to the rear wall of the piece of furniture in which the extractor device is integrated.

The dimension of the fan in the direction of the fan axis may be less than the dimension of the fan in the radial direction or in the direction of the diameter. In this embodiment, the fan can be arranged in the extractor device be that the fan axis is perpendicular to the rear wall of the furniture in the horizontal. The air inlet opening of the fan is parallel to the rear wall of the furniture in this embodiment. In this embodiment, the odor filter is thus preferably provided in front of the blower, ie on the side of the blower facing away from the rear wall. As a result, the odor filter can be reached by the user of the extractor device from the front.

Preferably, however, the fan axis of the fan is parallel to the rear wall of the furniture. The at least one air inlet opening of the fan is perpendicular to the rear wall of the furniture. The at least one odor filter is thus adjacent to the blower and is also accessible to the user of the extractor device from the front. Also in this embodiment, the space taken in the depth direction of the furniture is low, since the odor filter is located next to the fan and thus does not increase the dimension of the extractor device in the depth direction in the region of the fan.

The storage space in the piece of furniture that is available after installation of the extractor device is therefore maximized.

According to a preferred embodiment, the blower is a double-flow blower and in the flow direction, an odor filter is arranged in front of each of the air inlet openings of the blower. A double-flow blower is a blower which has two air inlet openings. These air inlet openings are perpendicular to the fan axis and are provided on opposite sides of the fan housing.

The double-flow fan preferably has only one fan. The double-flow fan is preferably arranged so that the fan axis lies in the horizontal parallel to the rear wall of the piece of furniture. Thus, the air inlet openings of the fan are perpendicular to the rear wall of the furniture. The one or more odor filters, which are arranged in front of the respective air inlet opening in the flow direction, thus lie laterally next to the fan and are accessible to the user of the extractor device from the front.

By using a double-flow blower, a fan with a smaller diameter can be used for the same power. Thus, the storage space in the piece of furniture in which the extractor device is integrated, further maximized. In addition, the air inlet openings of the double-flow fan can have a smaller size than an air inlet opening of a single-flow fan. Even with small size of the respective odor filter thus a reliable noise reduction can be achieved by the odor filter in front of the respective air inlet openings. In addition, in a double-flow fan, the extraction of fumes and vapors can be done reliably even with a lower performance of the fan. This further reduces the development of noise when the air is sucked into the blower.

According to one embodiment, the odor filter completely covers the air inlet opening of the fan in the flow direction. In particular, the odor filter for this purpose has a size which is equal to or greater than the area of the air inlet opening of the blower. The odor filter completely covers the air inlet opening in a vertical projection onto the air inlet opening. For this purpose, the odor filter is preferably provided in the immediate vicinity of the air inlet opening.

According to a further embodiment, the odor filter is arranged inclined to the surface of the air inlet opening of the blower. Arranged as inclined in this case is an orientation of the odor filter, in which the angle between the fan axis and the surface of the odor filter is not equal to 90 °. By tilting the odor filter, the area of the odor filter can be increased. On the one hand this improves the filtering out of the odorants and on the other hand it optimizes the noise insulation.

According to one embodiment, the odor filter is at least partially applied to a fan housing of the blower. For example, the odor filter with an edge, in particular the upper edge of the fan housing abut above the air inlet opening. For example, the lower edge, which is jammed at an inclined odor filter to the fan housing, may rest on the bottom of the fan housing. In addition, the outer edge of the odor filter on a wall of the blower housing, in which the fan is received, abut. The embodiment in which the odor filter is at least partially on the fan housing, has the advantage that the construction of the extractor device is simplified because a separate holder of the odor filter is not required. The holder can rather directly on the Be fan housing formed. In addition, the concern of the odor filter on the fan housing has the advantage that an accidental flow of air past the odor filter can be prevented and unwanted leakage of noise also can not occur.

According to one embodiment, at least one wall of the blower housing is releasably secured. In particular, the front wall of the blower housing is detachably connected to the further side walls of the blower housing. The front wall is the wall closest to the user of the extractor device in the installed state. In an integrated in a piece of furniture fume extraction device, the front wall of the blower housing is thus facing away from the rear wall of the furniture. By at least one wall, in particular the front wall of the blower housing, detachably connected to the further blower housing, this can be removed by the user. This allows access to the components received in the fan housing. In particular, the user can access the odor filters, which are preferably accommodated in the blower housing, and remove or replace them.

As an alternative or in addition to a detachable fastening, one or more recesses may be provided in the front wall, by means of which access to the odor filters is made possible. In particular, the recesses may each have a shape that corresponds to the shape of the odor filter. For example, the recesses may have rectangular shapes, so that a box-shaped odor filter can be inserted through them into the fan housing from the front.

According to a further embodiment, an air guide element for splitting the air flow from an air inlet opening of the blower housing to the at least two air inlet openings of the blower is provided in the blower housing. The air guide element is preferably arranged above the fan in the fan housing. This embodiment is particularly preferred in a fan which is a double-flow fan. In this case, the air flow, which enters the fan housing via the air inlet opening, can be conducted to the two air inlet openings of the fan housing through the air guide element. The targeted feeding of the air to the air inlet openings of the blower, the noise in the fume extraction device on be reduced. Particularly in the case of a fan in which the at least one air inlet opening lies in the vertical direction, a deflection of the vertically directed air stream entering the fan housing is necessary in order to be able to ensure reliable suction. The spoiler element can represent, for example, a roof-shaped plate. The air guide may additionally serve as a cover of other components of the fan, such as electronics. According to a further embodiment, the air-guiding element is designed such that holders for a respective odor filter are provided at its ends. This reduces the number of parts of the extractor device.

According to one embodiment, the extractor device has at least one air outlet opening which is vertical. The at least one air outlet opening is preferably provided in the lower region of the extractor device and lies in particular below the fan. The air outlet opening may be formed, for example, in the lower region of the fan housing. By the air outlet opening is vertical, the air exiting the extractor device can be discharged to the sides of the extractor device, forward or possibly backward of the extractor device.

According to a further embodiment, an air outlet opening of the blower downstream of a distributor space in the flow direction. In the distributor space, the air is directed from the air outlet opening of the blower to at least one air outlet opening of the extractor device and in particular of the blower housing. The distribution chamber preferably forms the lower part of the fan housing and is designed in one piece with this. In this case, the fan housing may have an intermediate bottom, which is separated from the distributor space by the area of the fan housing in which the fan, and preferably the odor filter (s) are accommodated. Alternatively, the distributor space can connect as a separate component down to the area of the blower housing in which the blower and the at least one odor filter is provided. Also in this case, the distributor space is referred to as part of the blower housing. The distribution room can be a channel consisting of a top wall and a floor open to the sides. In this embodiment, for example, a grid may be provided on the sides. In this embodiment, the open sides of the distributor space constitute the air outlet openings of the smoke vent. However, it is also possible that the distributor space has a closed cross-section and the air outlet openings of the extractor device are formed, for example, only on the sides of the extractor device as ends of the channel.

The air outlet opening of the fan is according to the invention preferably directed downward. By providing a distributor space, a deflection of the air emerging from the fan can take place and these are thus directed to vertically standing Luftaustrittsöff openings of the extractor device.

According to a preferred embodiment, the distributor space is at least partially limited by insulating elements, which may also be referred to as damping elements. The insulating element may represent an insulating board or a molded body. The insulating element is preferably made of foam. According to one embodiment, an insulating element or a plurality of insulating elements are provided at least on the floor of the distributor space. The insulating element or the insulating elements can thereby cover the entire surface of the floor. At least the insulation element covers or covers the insulation elements but the area below the air outlet opening of the blower. When the air outlet opening of the fan is horizontal, the air leaving the fan exits downwards in a vertical direction. In that at least at the bottom of the distributor space, which adjoins the air outlet opening of the blower at least one insulating element is provided at the bottom, the noise, which results from the leakage and deflection of the exiting air, can be damped. According to a further embodiment, at least one insulating element is also provided on the upper side of the distributor space. Preferably, the air outlet opening of the fan is located in the upper insulating element in the distributor space. By an upper insulating element, which preferably extends from the air outlet opening to the air outlet opening of the extractor device, a noise development in the guidance of the air in the distributor space can be minimized.

According to a further aspect, the present invention relates to a kitchen furniture with at least one hob. The kitchen furniture is characterized in that in the kitchen furniture at least one extractor device according to the invention is integrated. Advantages and features which are described with respect to the extractor device, apply - as far as applicable - also for the kitchen furniture according to the invention and vice versa and are therefore described only once if necessary.

As kitchen furniture according to the invention a kitchen cabinet, namely a cabinet of the kitchen called. The kitchen cabinet can be integrated in a kitchenette, or a cooking block. The kitchen furniture is referred to below as furniture. In the kitchen furniture, a hob is provided according to the invention. The hob is preferably used in a countertop of kitchen furniture or placed on this. The hob may, for example, represent an induction hob.

In the kitchen furniture, at least one extractor device according to the invention is integrated, which is designed according to the present invention. Integrating here is a fitting of the extractor device in the kitchen furniture. In this case, the extractor device can at least partially project beyond boundary walls of the kitchen furniture, in particular the floor.

The extractor device according to the invention has a suction opening. The suction opening can be located inside the hob, for example, be arranged centrally in the hob. In this case, the suction opening can extend over the depth of the hob. The suction opening may in this case have a rectangular or round shape. However, according to the present invention, it is also possible that the suction opening is arranged adjacent to the hob. For example, a suction opening of the extractor device can be provided on each side edge of the hob. The provision of a suction opening at the front or rear edge of the hob is also possible.

According to a preferred embodiment, the hob is arranged in the top of the kitchen cabinet and the suction opening of the extractor device is in the range of the hob.

According to a preferred embodiment, the fan is located in the rear area of the kitchen cabinet. Thus, the fan is preferably opposite the suction opening the extractor device arranged offset to the rear. Particularly preferably, the fan is located near the rear wall of the kitchen cabinet. Between the suction opening and the blower, a connecting channel is provided according to the invention. In the case of a fan offset towards the rear relative to the suction opening, the connecting duct therefore has a course in which deflections are present. In particular, the connecting channel preferably extends downwards from the suction opening, in order then to pass into a region running backwards parallel to the suction opening. The parallel region is adjoined by a further deflection over which the connecting channel merges into a region extending vertically downwards. The vertical downward area lies parallel to the rear wall of the kitchen cabinet. The lower end of the vertically extending region of the connecting channel is preferably connected to a fan housing.

According to a preferred embodiment, the extractor device therefore has a fan housing, which is arranged at least partially in the lower region of the kitchen furniture. The blower housing can be completely accommodated in the kitchen furniture. In this case, the air outlet opening of the blower housing can be located at a Publ voltage in the bottom of the kitchen cabinet. However, the blower housing particularly preferably extends through the bottom of the kitchen cabinet. Kitchen furniture usually has feet, by means of which the bottom of the kitchen furniture is at a distance to the room floor of the room in which the kitchen furniture stands, i. E. a kitchen floor is generated. The area of the blower housing that extends downwardly beyond the bottom of the kitchen furniture preferably constitutes a distribution space.

The side walls of this distributor space have openings that serve as Luftaustrittsöff openings on the extractor device. In this case, the air outlet openings can be introduced in the side walls of the distributor space and / or in the front of the distributor space. If the piece of furniture is not arranged on a mounting wall, the air outlet openings can also be provided in the rear side of the distributor space. The bottom of the blower housing can stand on the room floor, ie kitchen floor. However, it is also within the scope of the invention that the fan housing ends at a distance from the room floor. In this case, the blower housing is preferably in the kitchen furniture, for example, attached to the bottom of the kitchen cabinet. Also in the embodiment in which the blower housing extends over the bottom of the kitchen cabinet down, according to the invention preferably the fan inside the kitchen cabinet, that is arranged above the bottom of the kitchen cabinet. The arrangement of the blower inside the kitchen cabinet dampens the noises generated by the blower through the walls of the kitchen cabinet. Thus, the overall noise level generated by the fan and perceivable by the user is reduced. In particular, noises are prevented from exiting through the suction opening of the extractor device by the odor filter or the odor filter, and the further noises of the fan, such as vibrational noises, are damped by the walls of the kitchen cabinet.

The present invention will be explained in more detail below with reference to the accompanying figures. Show it:

FIG. 1 shows a schematic plan view of an embodiment of a kitchen appliance with a fume extraction device according to the invention;

FIG. 2 shows a schematic representation of the lower region of the blower housing of an embodiment of the extractor device according to the invention;

FIG. 3 shows a schematic perspective view of an embodiment of the extractor device according to the invention;

FIG. 4 shows a schematic sectional view of an embodiment of the kitchen cabinet according to the invention with a fume extraction device according to the invention;

FIG. 5 shows a schematic perspective view of the embodiment of the extractor device according to FIG. 3 in the region of the fan housing; and

6 shows a schematic, perspective sectional view of the embodiment of the extractor device in the region of the fan housing according to FIG. 5.

FIG. 1 shows a schematic plan view of an embodiment of a kitchen cabinet 1 with a fume extraction device 3 according to the invention. The kitchen Furniture 1 in this case has a worktop 10 in which a hob 2 is introduced. In the illustrated embodiment, a recess 20 is made in the hob 2. The recess 20 extends centrally in the depth direction of the hob 2 and has a rectangular elongated shape. Below the hob 2, a connecting channel 34 of the extractor device 3 is shown. The connecting channel 34 has a dimension that corresponds to the length of the recess 20. Thus, the recess 20 provided in the hob 2 corresponds to the suction opening 30 of the extractor device 3. From the suction opening 30, the connecting channel 34 preferably extends first downwards from the hob 2 (not visible in FIG. 1). In this region of the connecting channel or as a separate component, a grease filter unit is preferably arranged. The connecting channel 34 then runs parallel to the suction opening 30 and extends in the direction of one side of the hob 2. From this region of the connecting channel 34, which runs parallel to the suction opening, the connecting channel 34 merges into a region extending vertically downwards. Below the vertical area, a fan housing 31 of the extractor device 3 is provided. The vertical region of the connecting channel 34 and the fan housing 31 abut against the rear wall of the kitchen furniture 1. As can be seen from the view in Figure 1, the width of the fan housing 31 is greater than the width of the connecting channel 34 in its vertical region. In addition, it is apparent from FIG. 1 that the width of the blower housing 31 and the 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 at least in the lower part of the blower housing 31 formed by a front wall 310.

2 shows a schematic representation of the lower region of the blower housing 31 of an embodiment of the extractor device 3 according to the invention. FIG. 2 shows a schematic front view of the components in the fan housing 31. In particular, a blower 32 is received in the blower housing 31. In the illustrated embodiment, the blower 32 is a double-flow blower. Therefore, two air inlet openings 321 are provided in the blower 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 lies in the horizontal. Adjacent to the air inlet openings 321 in each case, outside the fan housing 320, 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 inclined to the respective air inlet opening 321. In particular, the upper edge of the odor filter 33 abuts against the fan housing 320 of the blower 32 above the air inlet opening 321. The lower edge of the odor filter 33 is in the illustrated embodiment on an intermediate bottom of the fan housing 31, which separates the area of the blower 32 from an underlying distributor space 312. In addition, the odor filter 33 rests with its outer edge against the side wall of the blower housing 31.

The fan housing 320 has an outlet connection, through which the air outlet opening 323 of the fan housing 320 is formed. The outlet of the fan housing 320 projects through the intermediate bottom of the fan housing 31 in the illustrated embodiment. Below the intermediate bottom of the fan housing 31 is a distributor chamber 312. The distributor chamber 312 is fluidically connected via the air outlet opening 323 of the fan housing 320 to the interior of the fan housing 320. The floor 317 of the distributor space 312 is covered by an insulating element 316 in the illustrated embodiment. Also at the top of the distribution chamber 312 a Dämmele- ment 315 is provided. The insulating element 315 extends over the entire area of the upper side of the distributor chamber 312 in the interior of the distributor chamber 312 and is penetrated by the outlet connector of the fan housing 320.

The arrows S in FIG. 2 indicate the air flow which results in the blower housing 31. From an air inlet opening 314 provided above the blower 32 (not shown in FIG. 2), air is drawn in through the blower 32. The air first penetrates the two odor filters 33 before it enters the air inlet openings 321 of the fan housing 320. Via the fan wheel (not shown), the air is conveyed to the outlet port and leaves the fan housing 320 via the Luftauslass- opening 323. The thus emitted air is deflected in the distribution chamber 312 and in the horizontal direction to the air outlet openings 313 of the fan housing 31 and thus the Air outlet openings 313 of the extractor device 3 passed.

FIG. 3 shows a schematic perspective view of an embodiment of the extractor device 3 according to the invention. In this view, it can be seen that a grease filter unit 35 extends downwards from the suction opening 30. The grease filter unit 35 is adjoined by a connecting channel 34. In the illustrated embodiment form, the connecting channel 34 initially has a horizontally extending region. On the rear side of the horizontally extending region, there is a deflection, through which the connecting channel 34 merges into a vertical, downwardly extending region. The lower end of the connecting channel 34 rests on the upper side of a fan housing 31. In particular, the air inlet opening 314 of the blower housing 31 is accommodated inside the lower end of the connecting duct 34.

The fan housing 31 has a box shape in the illustrated embodiment. In the front of the blower housing 31, a shoulder is provided. By this paragraph, the depth of the blower housing 31 increases from an upper area in which the air inlet opening 314 is provided to a lower area. In the upper region of the fan housing 31, an air guide element 31 1 is provided. The Luftleitele element 31 1 has a roof shape and is arranged centrally below the air inlet opening 314. The air flow, which enters the blower housing 31 via the air inlet opening 314, is thus split over the air guide element 31 1. In the lower area of the fan housing 31, which has a greater depth, the fan (not visible in FIG. 3) and two odor filters 33 are accommodated. The front wall 310 of the blower housing 31, which is preferably releasably secured, is shown in FIG. Here, recesses are provided in the front wall 310, via which the odor filters 33 can be inserted into the fan housing 31. Below the blower 33, the distributor space 312 is visible. This is in the illustrated embodiment, a separate component. In particular, the distribution chamber 312 is formed by a frame having a bottom, and at the corners upwardly projecting struts. In the embodiment shown, therefore, the air outlet opening 313 of the blower housing 31 and thus of the extractor device 3 extends over the entire depth of the blower housing 31, as well as over the front and back of the distributor chamber 312. In the illustrated embodiment, FIG An aperture 36, which prevents the air outlet via the middle front region of the distributor chamber 312, is shown at the front middle region of the distributor chamber 312. This allows the user to be protected from drafts. In the distributor space 312, an upper and a lower insulating element 315, 316 are arranged. The lower insulating element 316 covers the bottom 317 of the distributor chamber 312 and the upper insulating element 315 is arranged on the upper side of the distributor chamber 312. The insulating elements 315, 316 are formed by mats or plates, which are preferably made of foam material. FIG. 4 shows a schematic sectional view of an embodiment of the kitchen furniture 1 according to the invention with a fume extraction device 3 according to the invention. As can be seen from FIG. 4, the vertically extending region of the connection channel 34 lies in the rear area of the kitchen cabinet 1. The depth of the connection channel is small. Below the connecting channel 34, the blower housing 31 is arranged. This extends in the illustrated embodiment through the bottom 13 of the kitchen cabinet 1 through to the bottom B of the kitchen. The kitchen furniture 1 has a worktop 10 in the illustrated embodiment. In the front of the kitchen cabinet 1 drawers are provided. The drawers comprise drawers 11, 12, which extend into the interior of the kitchen cabinet 1 and are displaceably mounted. The depth of the upper drawer 1 1 in the illustrated embodiment is greater than the depth of the lower drawer 12. The upper drawer 1 1 is located at the height in the rear of the kitchen cabinet 1, the vertical region of the connecting channel 34th runs. The lower drawer 12 is at the height in which the fan housing 31 of the extractor device 3 extends in the interior of the kitchen cabinet 1. The floor 13 of the kitchen cabinet is offset up to the floor B of the kitchen and is held by a foot 14. Only one foot 14 is visible in FIG. 4, but it is also within the scope of the invention and it is preferred that at least two feet, preferably four feet 14, are provided on the bottom 13 of the kitchen cabinet 1. In the embodiment according to FIG. 4, the distribution space 312 is shown as an integral part of the blower housing 31. However, the distributor space 312 can also be provided as a separate component. The distribution space 312 is disposed in the area where the blower housing 31 extends downwardly above the floor 13 of the kitchen cabinet 1. Thus, air can be blown out below the bottom 13 of the kitchen furniture 1 via the air outlet openings (not shown).

FIG. 5 shows an embodiment of a vapor extraction device 3 in the region of the fan housing 31 as a schematic perspective view. This embodiment shows the fan housing 31, as shown in the embodiment of the extractor device 3 in Figure 3. In addition, it can be seen in FIG. 5 that an inlet nozzle is provided on the upper side of the fan housing 31, the upper end of which serves as an air inlet opening 314 of the fan housing 31. In addition, an electronics 324 of the blower 32 is indicated in FIG. The electronics 324 is located above the fan Segehäuses 320 arranged. In addition, it can be seen from FIG. 5 that the odor filter 33 represents a pleated odor filter. For this, in the case of the left-side odor filter 33, the frame which is visible in the right-side odor filter 33 is not shown. Furthermore, it can be seen from FIG. 5 that the walls of the distributor space 312 are formed by a grid. The air outlet opening 313 is thus formed by the intermediate spaces between the webs of the grid.

FIG. 6 shows a schematic perspective sectional view of the embodiment of the extractor device 3 in the region of the fan housing 31 according to FIG. In this sectional view, it can be seen that the air guiding element 311 is arranged centrally below the air inlet opening 314. The roof-shaped spoiler 311 covers the electronics 324 upwards. Below the electronics 324, the blower 32 is arranged. As can be seen from FIG. 6, the air outlet opening 323 of the fan housing 320 is formed by an outlet connection. The outlet nozzle and projects into the distribution space 312. The outlet nozzle protrudes through the upper insulating element 315. The bottom 317 of the distributor space 312 is covered by the lower insulating element 316. The odor filters 33 are arranged inclined to the air inlet openings (not visible in Figure 6).

Preferably, in the present invention, a double-flow blower installed in a blower housing is used. Before the air inlet of the fan two odor filters, in particular activated carbon filter are installed. In addition, a sound absorption mat can be integrated at the fan outlet. This is perpendicular to the air outlet flow from the fan.

The present invention is not limited to specific dimensions of the extractor device or the kitchen furniture. However, according to one embodiment, for example, the depth of the kitchen cabinet can be 600 mm. The suction opening may, for example, lie in a recess of a cooking hob and have a depth of 520 mm. The distance between the rear wall of the kitchen cabinet and the suction opening may be for example 50 mm. The height that lies between the suction opening and the lower end of a horizontally extending region of the connecting channel, for example, 170 mm. The depth of the vertically extending region of the connecting channel may be, for example, 100 mm. The depth of the blower housing It may for example be 230 mm. In this embodiment, an upper drawer, for example, a depth of 450 mm and a lower drawer have a depth of 340 mm. If the depth of the kitchen furniture, in particular the depth of the worktop, for example, 700 mm or more than 900 mm, the upper drawer can each have either 550 or 600 mm depth. The lower drawer can in this embodiment, for example, 440 or 600 mm in depth.

Such large depths of the lower drawer are not possible with extractor devices according to the prior art. Due to the vertical orientation of the fan axis of the fan, which is usually below the kitchen furniture, i. is arranged below the bottom of the kitchen furniture, a housing in which such a fan is received, usually a depth of 400 mm. In order to be able to ensure an air supply to the fan, a connection between a narrower connecting channel and the large housing of the fan is required. For this reason, in the extractor devices according to the prior art, a drawer in the lower region of the kitchen appliance can have a maximum depth of 280 mm.

With the present invention, a number of advantages can be achieved. In particular, the present invention provides an integrated solution. In addition, the change of the odor filter in the inventive arrangement of the odor filter in a simple manner possible. In addition, the surface of the odor filter can be maximized by the odor filter in the flow direction in front of the fan and in particular in front of the air inlet opening of the fan housing are arranged. With the present invention, a very low noise level can be achieved. The activated charcoal filter, which is also referred to as an odor filter, dampens the intake noise of the blower by approx. 2db (A). If additional insulating elements are provided in the distributor space, the absorption material used, which may be for example a mat, further dampens the noise.

In contrast to the extractor devices according to the prior art can be used in the extractor device according to the invention, a fan, which on the one hand brings with it a low noise and on the other can be provided in a simple manner with a sound insulation. In addition, the filter is underlying invention accessible in a simple manner. In particular, a conversion of a

Base of a kitchen furniture not required.

REFERENCE NUMBERS

1 kitchen furniture

10 worktop

1 1 drawer

12 drawers

13 floor

14 feet

2 hob

20 recess

3 extractor device

30 suction opening

31 blower housing

310 front wall

31 1 air guide

312 distribution room

313 air outlet opening

314 air intake opening

315 upper insulating element

316 lower insulating element

317 ground

32 blowers

320 fan housing

321 air intake opening

322 fan axis

323 air outlet

324 electronics

33 odor filter

34 connecting channel

35 grease filter unit

36 aperture

S flow direction

B room floor

Claims

1. Vapor extraction device for a hob, which in the upper side at least one suction opening (30), one to the suction opening (30) offset down blower arranged (32) and a connecting channel (34) between the suction opening (30) and the blower (32), characterized in that in the flow direction in front of at least one air inlet opening (321) of the blower (30) at least one odor filter (33) is arranged.

2. Vapor extraction device according to claim 1, characterized 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 odor filter (33) in the blower housing (31). is arranged.

3. Vapor extraction device according to one of claims 1 or 2, characterized in that the fan (32) is a radial fan and the fan axis (322) of the blower (32) in the extractor device (3) lies in the horizontal.

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

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

6. Vapor extraction device according to one of claims 1 to 5, characterized in that the odor filter (33) to the surface of the air inlet opening (321) of the blower (32) is arranged inclined.

7. Vapor extraction device according to one of claims 1 to 6, characterized in that the odor filter (33) at least partially against a fan housing (320) of the blower (32).

8. Vapor extraction device according to one of claims 2 to 7, characterized in that the front wall (310) of the blower housing (31) is at least partially releasably secured.

9. extractor device according to one of claims 4 to 8, characterized in that in the fan housing (31) an air guide element (311) for splitting the air flow from an air inlet opening (314) of the fan housing (31) to the at least two air inlet openings (321) of the blower (32) and that the air guide element (311) is arranged above the blower (32) in the blower housing (31).

10. Vapor extraction device according to one of claims 1 to 9, characterized in that the extractor device (3) has at least one opening Luftaustrittsöff (313), which is in the vertical.

1 1. A vapor extraction device according to one of claims 2 to 10, characterized in that an air outlet opening (323) of the blower (32) in the flow direction downstream of a distributor space (312), in which the air from the air outlet opening (312). 323) of the fan (32) to at least one air outlet opening (321) of the fan housing (320) is passed and which is in the lower region of the fan housing (32).

12. extractor device according to claim 11, characterized in that the distributor space (312) at least partially by Dämmelemente (315, 316) is limited.

13. kitchen furniture with at least one hob, characterized in that in the kitchen furniture (1) at least one extractor device (3) is integrated according to one of claims 1 to 12.

14. Kitchen furniture according to claim 13, characterized in that the hob (2) in the top of the kitchen cabinet (1) is arranged, the suction opening (30) of the extractor device (3) in the region of the hob (2) and the fan (32) in the rear area of the kitchen furniture (1).

15. Kitchen furniture according to one of claims 13 or 14, characterized in that the extractor device (3) has a fan housing (31) which is arranged at least partially in the lower region of the kitchen cabinet (1) and partially through the bottom (13 ) of the kitchen cabinet (1).

16. Kitchen furniture according to one of claims 13 to 15, characterized in that the fan (32) of the extractor device (3) above the bottom (13) of the kitchen furniture (1).