EP2827067B1 - Extraction hood - Google Patents

Description

The invention relates to an extractor hood with a central frame.

With extractor hoods, it is known to design them differently depending on the installation space, the mode of operation or the type of installation. In particular, the construction of the individual components of the extractor hood is designed differently for different functions and types of installation.

The DE 10 2009 028 809 A1 discloses an extractor hood which comprises a fan box and a viewing hood, the fan box forming a basic framework with at least one inner frame and the viewing hood being releasably attached to the basic framework. Furthermore, the invention relates to a kit for extractor hoods, which comprises an inner frame and a fan box, the inner frame and the fan box serving to produce a basic framework and the kit comprises at least two viewing hoods for releasable attachment to the basic framework.

Furthermore, in the EP 1 251 318 A2 discloses an extractor hood system. In particular, the extractor hood system has a carrier unit which is connected to a drive motor unit and a filter unit. Furthermore, different vapor screens can be connected to the filter unit or to the carrier unit.

In the DE 299 03 104 U1 a modular extractor hood is disclosed. In particular, the extractor hood has a motor / blower module that can be attached to a kitchen wall with a mounting wall. In order to be able to attach the hood element, which carries the filter mats inside, to the unit, the hood element is equipped with a support and mounting frame.

The DE 10 2009 028 808 A1 discloses an inner frame for an extractor hood, which has an interface for attachment to a fan box and at least one attachment area for attaching at least one filter element. Furthermore, an extractor hood is described which comprises a fan box, an inner frame and at least one filter element. The inner frame is with the Fan box connected and at least one fastening area for a filter element is provided on the inner frame.

Furthermore, the EP 2 518 412 A2 a system with a suction device comprising a suction surface for sucking in air and an air outlet with an outlet surface for transferring air into the area of a hotplate. The suction device is designed as a table fan, extractor hood or ceiling fan.

Furthermore, the DE 198 38 648 A1 an extractor hood system. The extractor hood system can be designed as a wall or ceiling hood and has a fireplace cladding with fan, filter system, hood screen, lighting and electrical control. In the hood system, the active devices required for operating the hood and their connections, including the vapor filter, are combined in a self-contained basic unit or technology unit and combined as a module in a modular design in a tubular housing which is arranged inside a chimney cladding. The blower motor is used in a uniform motor housing that is the same for different motor outputs. At the lower limit, the base unit has a frame-shaped or rail-like holder.

Finally, in the EP 1 134 501 A1 described an extractor hood that includes a screen and a fireplace. An air duct tract is formed in the chimney, in which a fan is provided.

In the case of an extractor hood, which is a flat screen hood, that is to say an extractor hood with an extendable drawer or an extendable screen, an extractor hood housing is required, for example, on the underside of which a rail system for the drawer or the screen can be attached. However, such a fastening is not required for a so-called fan module.

As a rule, all device variants of, for example, flat screen hoods and fan modules have different housing shapes for the extractor hood housing, components such as filters or cables and design parts in which the inflow geometry is formed on. It is therefore almost impossible to use the same parts with conventional extractor hoods.

This leads to a very large variety of parts that must be kept ready by the manufacturer of the extractor hoods. In addition, this complexity confronts manufacturing and assembly as well as indirect areas, such as development, with increasing problems and causes high costs in all areas. In addition, this complexity causes the project to run too long, since many components have to be developed for each extractor hood.

The invention is therefore based on the object of providing a solution by means of which great flexibility in the design of the extractor hood can nevertheless be ensured with simpler manufacture of an extractor hood.

The invention is based on the knowledge that this object can be achieved by using a central component in an extractor hood, which serves as a stabilizing element for all device variants.

The invention therefore relates to an extractor hood which has a fan module and an inflow module. The extractor hood has the features of claim 1.

According to the invention, a central frame is understood to mean a connecting element which is open at least on the top and the bottom. The central frame is preferably closed on the sides. The central frame therefore particularly preferably has continuous side surfaces. Openings can preferably be made in the continuous side faces of the central frame or the side faces can be interrupted in another way, for example by bevels. These openings or interruptions can extend over a height and width that is less than the height and width of the respective side surface. As an alternative to a central frame which is closed on the sides, that is to say has all of the side surfaces with walls, possibly with openings provided therein, it is also possible for the central frame to have at least one side surface completely recessed. In this case, the central frame can have, for example, only one rear wall or one rear wall and two side walls, but is open at the front or backwards. The central frame therefore preferably has at least three walls that form the side surfaces.

The central frame can, for example, be made in one piece as a deep-drawn part or as a bent part welded together, or also in several parts.

Alternately connecting the central frame to at least two fan modules is understood here to mean that the central frame can optionally be connected to one of the fan modules or the other of the fan modules. It is not necessary to replace the fan modules on the central frame itself. Likewise, alternately connecting the central frame to at least two inflow modules is understood to mean that the central frame can optionally be connected to one of the inflow modules or the other of the inflow modules. It is not necessary to replace the inflow modules on the central frame itself.

Different fan module variants are understood here as different fan modules, which can optionally be connected to the first interface of the central frame. These fan module variants differ in their structure. The dimensions of the fan module variants are preferably the same in the area of the interface in which they are connected to the central frame. According to the invention, the central frame is modified for different fan module variants. The first interface of the central frame is listed here in such a way that at least two different fan module variants can be alternately attached to the central frame.

Different inflow module variants are understood here as different inflow modules that can optionally be connected to the second interface of the central frame. These inflow module variants differ in their structure. The dimensions of the inflow module variants are preferably the same in the area of the interface in which they are connected to the central frame. According to the invention, the central frame is modified for different inflow module variants. The second interface of the central frame is designed so that at least two different inflow modules can be alternately attached to the central frame.

According to the invention, an interface is understood to be an area of the central frame at which it can be connected directly or indirectly to the inflow module or the fan module. The direct connection can take place, for example, by inserting, inserting or inserting the respective module into the central frame or vice versa. The indirect connection can take place, for example, via connecting elements such as latching elements, screws, rivets and the like.

The first interface for alternating connection with at least two different fan module variants can be formed by openings, cutouts, bends, tabs or other connecting elements on the central frame. In the case in which the interface is formed by openings or cutouts, the fan module can be screwed, riveted or locked onto the central frame, for example.

The second interface for alternately connecting to at least two different inflow modules can also be formed by openings, cutouts, bends, tabs or other connecting elements on the central frame. In the case in which the interface is formed by openings or recesses, the inflow module can be screwed, riveted or locked onto the central frame, for example.

For the purposes of the present invention, a fan module is a module that comprises at least the extractor housing in which the at least one fan, which can also be referred to as a blower, can be or is accommodated. In particular, the fan in the extractor hood housing is provided in a fan housing that closely surrounds the actual fan, for example the fan wheel, and thus supports the generation of the air flow. The fan housing can represent, for example, a worm housing or spiral housing or double-worm housing. The extractor hood housing, on the other hand, generally represents a rectangular housing, on which an air outlet is provided, via which air can be discharged from the extractor hood into a pipe or a hose. Furthermore, the extractor hood housing has an inlet opening, through which air can reach the inlet surface of the fan housing and, above, the fan. By doing Extractor hood housing therefore directs the air to the inlet surface of the fan housing. In addition, the electronics that are required to operate the fan are generally provided in or on the extractor housing.

An inflow module, which is also referred to as a design module, is understood to be the extractor hood module in which an intake opening is formed through which air can enter the extractor hood. In addition, the inflow module directs the air that has entered to the inlet of the extractor housing. Means for enlarging the suction opening of the extractor hood can also be provided on the inflow module. In particular, an extendable or extendable drawer or an extendable or extendable screen can be provided, for example. The inflow module thus also includes the inflow geometry, via which air is conducted from the intake opening to the inlet opening of the fan module and in particular the extractor hood housing.

By using a central frame used in the extractor hood according to the invention, a connection element is created on the one hand, via which the main components of the extractor hood, namely the fan module and the inflow module, can be connected to one another. Since this connecting element is also designed separately from these two main components, further functions can be performed by the central frame. On the one hand, the central frame serves to stabilize the overall structure of the extractor hood, that is to say as a stabilizing element, and on the other hand further components of the extractor hood can be provided on this central frame. With the central frame used according to the invention, the flexibility in the design of the extractor hood can thus be increased without this requiring an increased variety of parts.

The side of the central frame, on which the interface for connecting to different fan modules is provided, can always be the same despite completely different fan module variants that are connected to the central frame. This means that the shape of the central frame in the area of the first interface is preferably the same for all types of fan modules. However, it is also possible to create different central frames for different types of fan modules. For example, for a fan module in which the front wall of the Extractor hood housing is extended downwards, a central frame can be used in which the front of the central frame is recessed, that is, which only consists of the rear wall and the side walls.

The same applies to the side of the central frame on which the interface is provided for connecting to different inflow module variants. In spite of completely different inflow module variants which are connected to the central frame, this too can always be of the same design. This means that the shape of the central frame in the region of the second interface is preferably the same for all types of inflow modules. However, it is also possible to create different central frames for different types of inflow modules. For example, a holding device for guiding the drawer can be provided for an inflow module with an extendable drawer in the region of the second interface on the central frame. In the case of an inflow module in which no moving part is provided in the inflow geometry, however, a central frame can be used in which such a holding device is left out.

According to a preferred embodiment, the first interface is provided in the upper area of the central frame and the second interface is provided in the lower area of the central frame.

In this context, the upper region means on the upper edge of the central frame and / or on the inside, outside or in the wall of the central frame in the vicinity of the upper edge of the central frame.

In the lower region in this context means on the lower edge and / or on the inside, outside or in the wall of the central frame in the vicinity of the lower edge of the central frame.

Unless otherwise stated, directional information, such as those above or below, refer to the central frame when installed in the extractor hood.

By the central frame in the upper area a first interface for alternate connection with at least two different fan module variants and in the lower Area has a second interface for alternate connection with at least two different inflow module variants, the central frame serves as an intermediate element of the extractor hood. The central frame is thus arranged between the inflow module and the fan module and connects them. A number of connection points, for example openings for latching elements or through openings for screws, can therefore be provided in the lower region, for example, without these colliding with connection points that are required for the connection to the fan module. It is thus also possible to provide a large number of connection points in the area of the first interface and in the area of the second interface, which can be used for different module variants. This increases the flexibility of using the central frame.

Although it is possible that the shape of the first interface is the same for different fan module variants and the shape of the second interface is the same for different inflow module variants, a variant-specific configuration of the interfaces may be necessary in some variants. According to the invention, connection points for at least two different fan module variants are provided on the first interface and connection points for at least two different inlet module variants are provided on the second interface. It is provided according to the invention that connection points for different fan module variants and different inflow module variants are designed differently. In this case, several connection points can be provided on the central frame, but only a part of the connection points is used when connecting a module variant. The advantage of providing connection points for different module variants is that the central frame can be used even more flexibly, in particular for different combinations of module variants, without having to make structural changes to the central frame. According to the invention, connection points are understood to mean, for example, openings for latching elements, passages for screws or rivets, projections, bends, tabs or cutouts, by means of which a connection between the central frame and the fan module or the inflow module is produced, if appropriate, using additional connecting elements such as screws, rivets or latching elements can be.

According to one embodiment, the central frame is designed in one piece. In this embodiment, the two side walls and the rear wall and, if provided, the front wall are thus produced in one part. The central frame can, for example, be bent and welded from a sheet metal or, for example, be made from plastic by injection molding. The advantage of the one-piece embodiment is the increased stability that such an integral component has. An embodiment of the central frame in which the central frame comprises only three side surfaces is preferably configured in one piece, that is to say is formed by a U-shaped part.

According to an alternative embodiment, the central frame can also be configured in several parts. For example, the central frame can be configured in two parts. Here, for example, a U-part can form the back and the side surfaces of the central frame. This U-part is then connected to a flat part that forms the front. Alternatively, a U-part can form the front and the side surfaces of the central frame. This U-part is then connected to a flat part that forms the back. Furthermore, it is also possible to connect two L parts to one another, one of the L parts forming the front of the central frame and one side surface and the second L part forming the rear of the central frame and the other side surface. Finally, it is also possible to design the central frame in four parts, one part representing the front, one the rear and the other two the side surfaces.

The advantage of the multi-part embodiment of the central frame is on the one hand in the simpler manufacture of the central frame. For example, the open structure of the individual parts of the central frame means that connection points such as openings for locking devices or passages for screws can be easily inserted. The parts of the central frame in the multi-part configuration can be connected to one another, for example, by screw, plug-in, clinch or welded connections.

According to one embodiment, the central frame has at least one fastening device for fastening the extractor hood in a kitchen cupboard. This fastening device can be at least partially formed on the central frame or attached to it. To attach the Fastening devices on the central frame preferably provide connection points, for example in the form of openings for locking elements or screw passages or domes. A part of the fastening device can be integrated on the central frame, for example, by molding during injection molding. By providing the fastening device for fastening the extractor hood in a kitchen cupboard to the central frame, the number of parts that is required when installing the extractor hood in a kitchen cupboard can be reduced in particular.

According to one embodiment, the fastening device represents a lowering frame which is fastened to the central frame. A lowering frame is understood to be a device by means of which the central frame and thus the entire extractor hood is held in a kitchen cupboard and can be moved in the vertical direction. For this purpose, the lowering frame has a movable part which is fastened to the central frame and a further part of the lowering frame can then be fastened to the kitchen cupboard. In this embodiment, too, the number of parts during assembly in the kitchen cupboard is reduced and assembly is therefore simplified.

In addition to the fastening device (s) or alternatively, the central frame can have at least one holding device for further components of the extractor hood. These further components can represent separate parts from the fan module and the inflow module or can be connected to them. The fact that the central frame can hold further components further simplifies the overall structure of the central frame.

The holding devices can be, for example, openings, passages, projections, depressions, tabs, passages or bends.

A holding device for further components of the extractor hood can represent, for example, a holding device for a filter element, for example an odor filter or grease filter. This holding device is preferably provided on the inside of the central frame. As a result, the construction of the fan module and the inflow module can be simplified since these holding devices are no longer required on these parts.

Additionally or alternatively, the central frame can have at least one holding device for at least one cable. This holding device can be provided as a cable guide in the form of a cable duct and can be provided on the inside or the outside. The cable duct can be molded onto the central frame or attached to it. In this embodiment, the assembly of the extractor hood in the kitchen cabinet is simplified.

Furthermore, a holding device for a movable part of the intake geometry, in particular a rail system for an extendable drawer, can additionally or alternatively be provided on the central frame. This holding device is therefore provided in the lower region of the central frame. Because a rail system of an extendable drawer of the extractor hood can be attached directly to the central frame, the orientation of the drawer to the central frame is reliably determined on the one hand and thus also the relative alignment of the drawer to the fan, which is provided in the fan module which is also attached to the central frame is fixed.

The central frame can thus serve as a stable connection point for standardized components that are used in all device variants where the central frame is used, such as a hanging system for installing the extractor hood in a cabinet, filter holders, cable routing, accessories such as lowering frames and many other components. For extractor hoods with a pull-out drawer, which are also referred to as flat screen hoods, rail systems, which can be referred to as telescopic rails, are preferably mounted directly on the central frame and connected to the drawer in order to ensure stable and uniform guidance of the drawer.

Advantages and features that have been described with regard to the central frame apply - if applicable - accordingly to the extractor hood according to the invention and vice versa and are only described once if necessary.

An extractor hood constructed according to the invention can be designed flexibly in a simple manner. In particular, the interfaces on the central frame as well as on the modules to be connected are specially defined and shaped in order to connect the Unify central frame to the different modules. As a result, uniform assembly processes can be achieved in the assembly of the extractor hood and there are no unnecessary part variants, for example of the central frame or the modules to be connected, because the interfaces are preferably the same.

In the extractor hood according to the invention, the inflow module and the fan module therefore preferably have defined interfaces which are adapted to the interfaces on the central frame used according to the invention. In particular, at least the dimensions of the central frame in the area of the first and second interfaces preferably correspond to the dimensions of the fan module and the inflow module in the areas of the interfaces provided thereon. Connection points that are necessary for the connection between the central frame and the inflow module or between the central frame and fan module can, however, vary from module variant to module variant. This variation is taken into account by providing several alternative connection points on the central frame.

The extractor hood is preferably a built-in extractor hood. With this type of extractor hood, the advantage of the present invention can be used particularly well by providing fastening devices, such as lowering frames, on the central frame. However, it is also possible according to the invention for the extractor hood to be a chimney. In this embodiment too, the fan module and the inflow module are connected to one another via a central frame. In addition, in this embodiment, for example, a holding device for the chimney of the chimney can be provided on the central frame.

Figur 1:

eine schematische Darstellung einer Ausführungsform des erfindungsgemäß verwendeten Zentralrahmens; und

Figuren 2a bis 2f:

schematische Darstellungen möglicher Komponenten einer erfindungsgemäßen Dunstabzugshaube.

The invention is explained again with reference to the accompanying figures. Show it:

Figure 1:

is a schematic representation of an embodiment of the central frame used according to the invention; and

Figures 2a to 2f:

schematic representations of possible components of an extractor hood according to the invention.

In Figure 1 an embodiment of the central frame is shown schematically.

The top and bottom of the central frame 10 are open. In the illustrated embodiment, the front, back and side surfaces of the central frame 10 are formed by a front wall 103, the rear wall 104 and right and left side walls 105, 106. In the illustrated embodiment, the central frame 10 is made in one piece. However, it is also within the scope of the invention to design the central frame 10 in several parts. The walls 103, 104, 105 and 106 together form the base body 100 of the central frame 10 and are also referred to below as the base body 100. According to a further embodiment, however, it is also possible for the base body 100 of the central frame 10 to be formed only by three walls, in particular the rear wall 104 and the side walls 105, 106. In this embodiment, not shown, the central frame 10 is then open to the front.

In the upper area, the central frame 10 has a first interface 101 for alternately connecting to at least two different fan module variants 11 (see Figure 2 ) on. In the lower area, the central frame 10 has a second interface for alternately connecting to at least two different inflow module variants 12 (see Figure 2 ) on.

In the embodiment shown, the first interface 101 comprises the upper edge 1010 of the central frame 10, that is to say the base body 100 of the central frame 10. In addition, at the first interface 101 at a distance from the upper edge 101 there is an outwardly directed step, which is described below is referred to as the outer step 1011 or upper outer step, introduced into the wall of the base body 100. According to an alternative embodiment, which is not shown, step 1011 can be omitted, for example. In this embodiment, instead, for example, chamfers (not shown) can be provided on the upper side of the central frame 10, through which a part of the upper edge 101 is bent inwards.

In the in Figure 1 In the illustrated embodiment, connection points 1012, 1013 for fan modules 11 are provided in the front wall 103 and the rear wall 104. The connection points 1012 and 1013 are in Figure 1 shown schematically as openings. However, it is also within the scope of the invention that these connection points represent, for example, screw domes, tabs, bends, penetrations or locking elements. The outer connection points 1012 and the middle connection points 1012 in the middle of the upper region of the front wall 103 and the rear wall 104 are connection points for a first fan module variant 11. These connection points 1012 are therefore correspondingly positioned on the lower edge of the first fan module variant 11 and dimensioned. Connection points 1013 for a second fan module variant 11 are also provided at the first interface 101. These are offset inwards from the external connection points 1012. These connection points 1013 are positioned and dimensioned such that they can interact with connecting means on the second fan module variant 11. A first or a second fan module variant 11 can therefore optionally be attached to the central frame 10 via the first interface 101.

In the embodiment shown, the second interface 102 comprises the lower edge 1023 of the central frame 10, that is to say the base body 100 of the central frame 10. In addition, at the second interface 102 at a distance from the lower edge 1023 there is an outwardly directed step, which follows is referred to as the outer step 1024 or lower outer step, introduced into the wall of the base body 100. In the illustrated embodiment, connection points 1021, 1022 for inflow modules 12 are also provided in the front wall 103. The connection points 1021 and 1022 are in Figure 1 shown schematically as openings. However, it is also within the scope of the invention that these connection points represent screw domes or locking elements, for example. The outer connection points 1021 are connection points for a first inflow module variant 12. These connection points 1021 are therefore positioned and dimensioned according to connecting means on the upper edge of the first inflow module variant 12. At the second interface 102 there are also connection points 1022 for a second inflow module variant 12. These are offset inward from the external connection points 1021. These connection points 1022 are positioned and dimensioned such that they can interact with connecting means on the second inflow module variant 12.

A first or a second inflow module variant 12 can therefore optionally be attached to the central frame 10 via the first interface 101.

In the illustrated embodiment, a recess 1020 is also provided on the front wall 103 at the lower edge 1023 of the central frame 10. In the embodiment shown, this extends over the entire width of the front wall 103 and extends up to the outer step 1024. This cutout 1020 makes it possible, for example, to connect inflow modules 12 to the central frame 10 which have a sliding drawer 120. This drawer 120 can at least partially engage in the cutout 1020 of the central frame 10. The recess can therefore be referred to as a holding device or part of a holding device. In the illustrated embodiment, holding devices 107 for holding rails of such a drawer 120 are also provided on the side walls 105 and 106. In Figure 1 the holding devices 107 are shown as openings. However, other forms of holding devices, for example projections or bores, can also be provided.

Furthermore, fastening devices (not shown) can be provided in or on the base body 100 in the area between the first interface 101 and the second interface 102, in particular in the area between the upper outer step 1011 and the lower outer step 1024. These fastening devices, which can represent, for example, a lowering frame, can be fastened to the central frame 10 via corresponding connection points (not shown), for example bores.

In the Figures 2a to 2f Different fan module variants 11 and different inflow module variants 12 are shown, which can be connected to one another via the central frame 10.

In the Figure 2 are shown in the partial figures 2a to 2c on the left side examples of possible fan module variants 11, which on the top of the central frame 10, the middle of the Figure 2 is shown, can be connected via the interface 101. In the Figures 2a to 2c the respective fan module variants 11 are shown in the state attached to the central frame 10.

In Figure 2a shows an extremely flat fan module 11, that is to say a fan module 11 with a low height, with fan housings 110 arranged horizontally in the extractor housing 111. The fan wheels provided in the fan housing 110 can be designed either as a single-motor or as a two-motor variant. The extractor housing 111 can be made of sheet metal or plastic for both the single-engine and the twin-engine variant. Due to the flat design, it is ideally suited for low wall cabinets or to create more space in the wall cabinet above the extractor hood 1 for shelves.

In Figure 2b A stepped fan module 11 is shown, which in the area of the standing fan wheels in the standing fan housing 110 is higher than the flat fan module 11 Figure 2a . In the front area, the extractor housing 111 of the fan module 11 is made of Figure 2a on the other hand, a rather low step is formed on which a so-called spice board (spice rack in the cupboard) can be attached above the step. The stage in this fan module 11, in particular in the extractor housing 111, is very important due to the better performance values (air performance and noise values). This fan module 11 can achieve significantly better performance values than the flat fan module 11 Figure 2a , because almost no air deflection is required due to the upright fan wheels. This fan module 11 can also be configured with one or two motors and the extractor housing 111 can be made of plastic or sheet metal without requiring a variant of the central frame 10, which is based on the variant of the central frame 10 for the fan module 11 Figure 2a deviates.

In Figure 2c A fan module 11 with a double-flow fan, which is mostly used in Essen, is shown. This fan module 11 takes up more space in the wall cabinet than the fan modules 11 mentioned above. However, due to the fan, this fan module 11 can achieve better performance values and higher air performance than when using fan wheels. It is also conceivable to design this fan module so that the fan outlet can be variably positioned by the customer with little effort, for example upwards, to the side, to the rear or to the front. According to the invention, the same central frame 10 as for the fan modules can also be used for this fan module 11 Figures 2a and 2b be used.

For those in the Figures 2a to 2c Fan module variants 11 shown, which differ from one another in terms of construction, the same central frame 10 can be used in each case. On the central frame 10, however, there are several connection points (in FIG Figure 2 not shown) can be provided, which enable or simplify the connection with the different fan module variants 11. Preferably, all three are in Figure 2 shown or provided for more fan module variants 11, the required connection points in the central frame 10.

In turn, different inflow module variants 12 can be provided on the underside of the central frame 10. These inflow module variants 12 differ according to the designs and / or the design of the inflow geometry, through which the extractor hood can pass.

In the Figures 2d to 2f three examples of possible inflow module variants 12, that is to say design variants, are shown, which can be connected to the underside of the central frame 10. In the Figures 2d to 2f the respective inflow module variants 12 are shown in the state attached to the central frame 10.

Each illustrated inflow module variant 12 can, however, also be displayed in the desired width, depth and height design, starting from the dimensions of the central frame 10. Here, only the outer dimensions of the corresponding inflow module 12 are changed.

In Figure 2d An inflow module 12 with a pull-out screen, which is also referred to as a drawer 121, is shown. An extractor hood 1 provided with this inflow module 12 is also referred to as a flat screen hood. In the embodiment shown, the operation, that is to say the operating elements, is fitted in the pull-out drawer 121, in particular in the front of the handle, as in FIG Figure 2d shown. Alternatively, the operating elements can also be provided on the top of the drawer 121 or on the right or left side of the drawer 121. The pull-out drawer 121 can be provided with a filter element 120, with a glass plate (not shown) or as a pure pull-out screen, for example made of sheet metal (not shown). The lighting can be fixed in the rear, fixed on the side or also extendable in the drawer 121.

In Figure 2e is another inflow module 12 with pull-out drawer 121, that is shown for a flat screen hood. In this case, the controls can be installed in the fixed part of the inflow module 12, for example on the left or right behind the handle in the fixed profile strips / housing parts or on the underside of the inflow module 12 on the side or rear. The pull-out drawer can be equipped with the filter element 120, with a glass plate or as a pure pull-out screen, for example made of sheet metal (not shown). The lighting can be fixed at the back, fixed at the side or fixed at the front.

In Figure 2f a fixed inflow module 12 is shown. An extractor hood 1 provided with such an inflow module 12 can be installed, for example, as fan modules in wall cupboards or country house kitchens or serve as a ceiling fan. The flexible width and depth version is all the more important here, since fan modules and ceiling ventilation in various width and depth versions are available on the market. By means of an inflow module 12, which has the desired dimensions and a certain design and a certain design and which is connected to the central frame 10, the fan modules and ceiling ventilation can be produced in various embodiments and with various equipment and components.

The invention is not restricted to the illustrated embodiments. In particular, the shape of the central frame can deviate from the shape shown, for example the front wall of the central frame can be left free. Also on the in the Figure 1 stages shown can be dispensed with in an alternative embodiment. It is also possible to provide only one level or more than two levels. Furthermore, differently designed and / or differently positioned connection points than those in FIG Figure 1 connection points shown may be provided. For example, at least a bend can be made in the upper edge of the central frame and / or through-holes can be provided in the side surfaces, which can represent depressions or tabs with openings, for example.

In addition, Essen, for example, can also have the structure according to the invention with a central frame. For example, a flat fan module (see Figure 2a ) be used. A connection of the telescopic duct, which is also referred to as a chimney, is then preferably provided on the inflow module of such a Essen extractor hood. Thus, by connecting the flat fan module via the central frame to the inflow module in the form of a meal with a connection for the duct, a stove with the structure according to the invention can be produced.

In addition, they are in the Figure 2 Fan module variants and inlet module variants shown, that is to say design modules, can be combined with one another as desired, as a result of which a high degree of flexibility is achieved. Further fan module variants or inlet module variants can also be provided, as a result of which the flexibility is increased still further.

The platform concept that can be realized by the present invention. is based on the central frame, which is a central component that serves as a stabilizing element for all extractor hoods.

The external dimensions of the central frame are preferably designed so that any extractor hood that is equipped with the central frame can be installed in standard wall cupboards in any known installation situation.

The present invention has a number of advantages. In particular, a significant reduction in complexity is achieved. In addition, investments in tools can be saved and, due to the common parts strategy, the device structure is significantly simplified. Development effort is also reduced. The assembly of the extractor hood is also simplified, since uniform, simpler assembly processes are implemented. When developing new extractor hoods, the project times are shorter and the planning and control effort in the factory is less. In addition, the logistics are simplified since a smaller number of parts has to be provided. Finally, the present invention leads to a significant reduction in costs, for example for material, wages, storage costs and one-off expenses for new products.

Reference list

1

Extractor hood

10th

Central frame

100

Basic body

101

first interface

1010

upper edge

1011

outer stage

1012

Connection point of the first fan module

1013

Connection point second fan module

102

second interface

1020

Recess

1021

Connection point of the first inflow module

1022

Connection point second inflow module

1023

lower margin

1024

outer stage

103

Front wall

104

Back wall

105

Side wall

106

Side wall

107

Holding device

11

Fan module

110

Fan housing

111

Extractor hood housing

12th

Inlet module

120

Filter element

121

drawer

Claims (8)

1. Extraction hood (1) which has a fan module and an inflow module, wherein the fan module (11) is connected to the inflow module (12) by way of a central frame (10), which has at least one first interface (101) for alternate connection with at least two different fan module variants (11) and at least one second interface (102) for alternate connection with at least two different inflow module variants (12) and connection points (1012, 1013) for at least two different fan module variants (11) and connection points (1021, 1022) for at least two different inflow module variants (12) are provided on the first interface (101) and on the second interface (102) in each instance, characterised in that in each case at least one connection point (1012) for a first fan module variant (11) and at least one second connection point (1013) for a second fan module variant (11), which is embodied differently to the first connection point (1012), is provided on the first interface (101) and in each case at least one connection point (1021) for a first inflow module variant (12) and at least one second connection point (1022) for a second inflow module variant (12), which is embodied differently to the first connection point (1021), is provided on the second interface (102) and a first fan module variant (11) is connected to the at least one first connection point (1012) of the first interface (101) or a second fan module variant (11) is connected to the at least one second connection point (1013) of the first interface (101) and moreover a first inflow module variant (12) is connected to the at least one first connection point (1021) of the second interface (102) or a second inflow module variant (12) is connected to the at least one second connection point (1022) of the second interface (102).
2. Extraction hood according to claim 1, characterised in that the first interface (101) is provided in the upper region of the central frame (10) and the second interface (102) is provided in the lower region of the central frame (10).
3. Extraction hood according to one of claims 1 or 2, characterised in that the central frame (10) is embodied in one piece, in two pieces or in four pieces.
4. Extraction hood according to one of claims 1 to 3, characterised in that this has at least one fastening device for fastening the extraction hood (1) in a kitchen cabinet.
5. Extraction hood according to claim 4, characterised in that the fastening device represents a lowering frame which is fastened to the central frame (10) and which represents a device, by means of which the central frame and thus the entire extraction hood is held in a kitchen cabinet and can be displaced in the vertical direction.
6. Extraction hood according to one of claims 1 to 5, characterised in that this has at least one holding device for further components of the extraction hood (1).
7. Extraction hood according to claim 6, characterised in that the holding device represents a holding device for a filter element (120), for at least one cable and/or for a moveable part of the intake geometry of the inflow module (12), in particular a rail system for an extendable drawer (121).
8. Extraction hood according to one of claims 1 to 7, characterised in that the extraction hood (10) is an integrated extraction hood.

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