BE1030806A1 - Extractor hood and hob that can be structurally integrated into a hob - Google Patents

Abstract

The invention relates to an extractor device (4) for a hob (2) for structural integration into the hob (2), comprising an extractor device housing (6) for arranging the extractor device (4) below a hob plate (8) of the hob (2). with a suction opening (10) in the hob plate (8) connected in a flow-conducting manner, a suction shaft (12), a grease filter (14) arranged in the extractor housing (6), an odor filter arranged in the extractor housing (6) and in the flow direction after the grease filter (14). and a fan arranged in the extractor device housing (6) and in the flow direction after the grease filter (14) for extracting vapors rising above the hob (2), characterized in that the extractor device housing (6) at least in the area of the suction shaft (12). a double-walled housing wall (16) with an inner wall (18) facing the grease filter (14) and an outer wall (20) facing away from the grease filter (14), the inner wall (18) and the outer wall (20) having an intermediate space (22) lock in. The invention further relates to a hob (2).

Description

Description

Extractor hood and hob that can be structurally integrated into a hob

The invention relates to an extractor device that can be structurally integrated into a hob according to the preamble of patent claim 1 and to a hob with an extractor device that is structurally integrated into the hob.

Such extractor devices for structural integration into a hob and hobs with structurally integrated extractor devices are from the prior art in one

Numerous embodiments are already known. The well-known ones

Extractor extractor devices include an extractor extractor housing for arranging 100 the extractor device below a hob plate of the hob with a

Suction opening in the hob plate connected in a flow-conducting manner, a grease filter arranged in the extractor housing, a grease filter in the

Extractor extractor housing and an odor filter arranged in the flow direction after the grease filter and an in the extractor device housing and in

Fan arranged in the direction of flow after the grease filter for suction from above

Vapors rising from the hob. Extractor hoods of this type are also called

Table fan or trough fan.

The invention therefore presents the problem of designing an extractor device for structural purposes

Integration into a hob and a hob with a structurally integrated

To improve the extractor device.

According to the invention, this problem is solved by an extractor device with the

Features of patent claim 1 solved, which is characterized in that

At least in the area of the suction shaft, the extractor device housing has at least one double-walled housing wall with an inner wall facing the grease filter and an outer wall facing away from the grease filter, the inner wall and the outer wall enclosing a gap. Furthermore, this will

Problem solved by a hob with the features of patent claim 10. Beneficial

Refinements and further developments of the invention result from the following

Subclaims.

The advantage that can be achieved with the invention is, in particular, that a

Extractor hood device for structural integration into a hob and a hob with a structurally integrated extractor hood device are improved. Due to the design of the extractor device and the hob according to the invention, this is the case

Noise emissions from the extractor device structurally integrated into the hob can be significantly reduced. Accordingly, the invention makes it possible in comparison to the prior art

Technology ensures lower noise emissions with the same volume flow

Extractor extraction device or a constant noise emission with an increased volume flow compared to the prior art, i.e. with a stronger suction and thus a higher suction power of vapors rising above the hob.

Basically, the extractor device according to the invention is different in terms of type, functionality,

Material and dimensions freely selectable within wide suitable limits. For example, the extractor device according to the invention can be used advantageously both for household hobs and for commercial hobs, i.e. hobs for professional use.

An advantageous development of the extractor device according to the invention for a

Hob for structural integration into the hob provides that the grease filter is arranged in such a way that the grease filter is at least partially in the area of

Suction shaft extends, preferably that the grease filter extends, starting from the suction opening, into an interior of the extractor housing, particularly preferably that the grease filter is designed as a V-shaped grease filter. In this way it is ensured that the vapor rising above the hob is safely transported through the hob

Grease filter is passed. This applies in particular to the preferred embodiment of this

Continuing education. The particularly preferred embodiment of this development also has the further advantage that by means of this special shape of the grease filter

Flow cross section of the grease filter for the vapors can be doubled in a very simple way in terms of construction and production technology. Furthermore, by means of the last-mentioned embodiment of this development, it is possible to remove the vapors, i.e

Volume flow to be divided in the desired manner before flow through the odor filter, without the need for additional components. Overall, the present development of the extractor device according to the invention enables a very compact design, particularly with regard to the height of the extractor device.

A further advantageous development of the extractor device according to the invention for a hob for structural integration into the hob provides that the

Extractor extractor housing has at least one double-walled housing wall only in the area of the suction shaft, preferably that

Extractor extractor housing in the area of the suction shaft only has a single double-walled housing wall. As a result, the total volume of the extractor device according to the invention and thus that for the extractor according to the invention

The installation space required for the extractor hood in the hob can be reduced to a minimum, despite significantly improved noise reduction. This applies in particular to the preferred embodiment of this development, since here the formation of

Housing walls as a double-walled housing wall on just one such

Housing wall is reduced. This is because positioning of the at least one double-walled housing wall in the area of the intake shaft, in particular one

Positioning the only double-walled housing wall in this area, a very high level of effectiveness, namely a very high level of noise attenuation, is achieved.

Another advantageous development of the extractor device according to the invention for a hob for structural integration into the hob provides that one of the at least one double-walled housing wall or the one double-walled housing wall is arranged directly adjacent to the grease filter, preferably on the side facing away from the odor filter and the fan of the grease filter is arranged. This is the way it is

Positioning of this double-walled housing wall has been further optimized in terms of its noise dampening. This applies particularly to the preferred embodiment of this ı5 development.

A further advantageous development of the extractor device according to the invention for a hob for structural integration into the hob provides that the space between at least one of the at least one double-walled housing wall is only filled with a

Gas is filled or evacuated. This means that at least one is double-walled

Housing wall can be realized in a particularly simple way in terms of construction and production technology. For example, air or the like can be used as the gas.

Another advantageous development of the extractor device according to the invention for a hob for structural integration into the hob provides that in the intermediate space at least one of the at least one double-walled housing wall is the inner wall

And the stiffening structure connecting the outer wall is arranged in a force-transmitting manner, preferably that the stiffening structure is designed as a plurality of ribs, particularly preferred that the stiffening structure has a zigzag shape in cross section. In this way it is possible, for example, to determine the respective wall thickness

inner wall and/or the outer wall of the double-walled housing wall. Material and weight can be saved accordingly. With the preferred

In addition, a structurally and technically simple and very effective stiffening structure is specified in the embodiment of this further development. Furthermore, the particularly preferred embodiment enables this further development, at the same time

Stability, additional material and weight savings.

A particularly advantageous development of the extractor device according to the invention for a hob for structural integration into the hob provides that in the

Between the space of at least one of the at least one double-walled housing wall, a noise-damping filling of different material than the double-walled housing wall is arranged, preferably that the gap with the noise-damping filling is arranged

Essentially completely filled out. As a result, noise emissions can be significantly reduced using this double-walled housing wall. This applies in particular to the preferred embodiment of this development, since there is essentially no

There are no longer any cavities in the gap, i.e. spaces that are not filled with the noise dampening filling.

A further particularly advantageous development of the extractor device according to the invention en 11 for a hob for structural integration into the hob provides that the inner wall and / or the outer wall of at least one of the at least one double-walled housing wall are / is designed as a perforated wall. To this

In this way, the weight of this double-walled housing and thus the total weight of the extractor device according to the invention can be reduced significantly. This applies

Especially when using the latter training at the same time, i.e. with the

Using a noise dampening filling so that it can be made through this single or double

Perforation does not lead to any functional disadvantages in the use of the extractor device according to the invention. In other embodiments of the extractor device according to the invention, i.e. if no noise-damping filling is used, it makes more sense to perforate the inner wall and the

Perforation is defined here as any suitable and reasonable type of

Perforation of the respective wall is understood, with the number, arrangement, size and

The shape of the holes in the wall can be determined depending on the requirements of the individual case.

Furthermore, another advantageous development of the invention

Extractor hood device for a hob for structural integration into the hob, that the extractor hood device housing with the at least one double-walled

Housing wall is designed in such a way and the grease filter and/or the odor filter are/is arranged releasably on the extractor device housing in such a way that the respective filter is in front

Can be cleaned and/or replaced on site. This is/is a cleaning and/or a

Exchange the grease filter and/or the odor filter on site, i.e. at the installation location of the

hob, is basically possible.

Accordingly, an advantageous development of the hob according to the invention provides that the extractor device is arranged in the hob in such a way that the grease filter and/or the odor filter can be cleaned and/or replaced on site.

Five exemplary embodiments of the invention are shown purely schematically in the drawings and are described in more detail below. It shows

Figure 1 shows a first embodiment of the cooktop according to the invention with the extractor device according to the invention in a partial, sectioned

side view,

Figure 2a shows a first variant of a second embodiment of the cooktop according to the invention with the

Extractor extractor device in a partial, sectioned side view,

Figure 2b shows a second variant of the second exemplary embodiment of the hob according to the invention with the device according to the invention

Extractor hood device in a partial perspective view,

Figure 2c shows a third variant of the second embodiment of the invention

Hob with the extractor device according to the invention in an analogue way

Representation of Fig. 2b,

Figure 3 shows a third embodiment of the cooktop according to the invention with the extractor device according to the invention in a partial, sectioned

side view,

Figure 4 shows a fourth embodiment of the hob according to the invention with the extractor device according to the invention in a partial, sectioned view

Side view and

Figure 5 shows a fifth embodiment of the hob according to the invention with the extractor device according to the invention in a partial, perspective view.

In Fig. 1, a first embodiment of the hob according to the invention with the extractor device according to the invention is shown purely by way of example.

The hob 2 is designed as an induction hob and has an extractor device 4 structurally integrated into the hob 2.

The extractor device 4 includes an extractor device housing 6

Arrangement of the extractor device 4 below a hob plate 8 of the hob 2 with a flow-conducting connection to a suction opening 10 in the hob plate 8

Suction shaft 12, a grease filter 14 arranged in the extractor housing 6, one in the extractor housing 6 and in the flow direction after

Grease filter 14 arranged odor filter, not shown, and an in the

Extractor device housing 6 and a fan (not shown) arranged in the flow direction after the grease filter 14 for suction of vapors rising above the hob 2, also not shown. The aforementioned odor filter,

For example, an activated carbon filter can basically be arranged in the direction of flow before or after the fan.

According to the invention, the extractor device housing 6 has at least one double-walled housing wall 16, at least in the area of the suction shaft 12, with an inner wall 18 facing the grease filter 14 and one facing away from the grease filter 14

Outer wall 20, wherein the inner wall 18 and the outer wall 20 enclose a gap 22.

The grease filter 14 is arranged in the present embodiment in such a way that the grease filter 14 extends at least partially into the area of the intake shaft 12, namely in such a way that the grease filter 14, starting from the intake opening 10, extends into an interior of the

Extractor hood housing 6 extends. Furthermore, the grease filter 14 is designed here as a V-shaped grease filter. The grease filter 14 is, as can be seen from FIG. 1, with a

Base of the grease filter 14 is arranged directly at the intake opening 10 of the hob plate 8, so that the vapors (not shown) extracted above the hob 2 pass from the intake opening 10 through the open base of the grease filter 14 directly into the interior of the grease filter 14. When flowing through the grease filter 14, the vapors, i.e. the volume flow, are essentially divided into two partial flows, with one partial flow of the vapors passing through a side wall of the grease filter 14 shown on the left in the image plane of Fig. 1 and the other partial flow of the vapors passing through a side wall shown on the right in the image plane of Fig. 1.

Side wall of the grease filter 14 flows through. In this way, the grease filter 14 can be used, for example, to divide the vapor before it flows into the (not shown).

serve as odor filters.

In the present exemplary embodiment, the extractor device housing 6 has at least one double-walled housing only in the area of the suction shaft 12

Housing wall, namely only the single double-walled housing wall 16 shown in FIG opposite side of the grease filter 14 is arranged. Accordingly, they are located

Odor filter and the fan here on the left side of the image plane in Fig. 1

Grease filter 14.

Furthermore, the space 22 delimited by the inner wall 18 and the outer wall 20 is only filled with a gas, namely air. In other embodiments of the extractor device according to the invention, it would alternatively also be conceivable that the at least one gap is either filled with another gas or evacuated.

To increase the user-friendliness of the hob 2, on the one hand

Extractor hood 4 is arranged in the hob 2 and is on the other hand the

Grease filter 14 and the odor filter are detachably arranged on the extractor housing 6 in such a way that the grease filter 14 and the odor filter are on site, i.e. at the installation site of the

Hob 2, can be cleaned and/or replaced.

The functionality of the hob according to the invention with the extractor device according to the invention according to the present exemplary embodiment is briefly explained below with reference to FIG.

The hob 2 with the extractor device 4 is installed in a piece of kitchen furniture (not shown), for example a worktop or the like, and is ready for use.

The hob plate 8 here has a total of four unspecified hotplates, which are arranged distributed as usual on the hob plate 8. Of the four mentioned above

Here, in the image plane of FIG. 1, two of the hotplates are arranged to the left and right of the suction opening 10. Accordingly, regardless of the during one

The specific cooking area used during the cooking process requires efficient suction from above

Hob 2 allows rising vapors.

The extractor device 4 is, as usual, designed in such a way that the vapor flows through the extractor device 4 in a guided forced flow, with the whole

Vapor is first forcibly sucked through the grease filter 14 and then through the odor filter, also not shown, by means of the blower, not shown. The vapors cleaned in this way can then either be led back in circulating air into the kitchen room (not shown) in which the hob 2 is set up, or by means of a flow connection (not shown) from the fan into a free one

environment are encouraged.

Accordingly, the vapor extracted by the fan above the hob 2 passes through the intake opening 10 into the extractor housing 6 and initially flows through the V-shaped grease filter 14. As can be seen from Fig. 1 and has already been explained above, the vapor stream is not only freed of grease (not shown) by means of the grease filter 14, but is simultaneously also divided into two essentially equal-sized partial streams, with one of the two partial streams passing through the grease filter 14 on the left in the image plane of Fig. 1 and the other of the two partial streams passing through the grease filter 14 on the right in the image plane of Fig. 1.

The vapor stream divided in the aforementioned manner is passed through the fan by means of the blower, provided the odor filter is arranged in front of the blower in the direction of flow

Odour filter, whereby the vapours are separated due to the previous division of the

Vapor flow into the two partial flows essentially over the entire inlet surface of the

Odor filter occurs evenly distributed.

As already stated, the cleaned vapors can then either be led back into the kitchen room (not shown) in which the hob 2 is set up in a recirculation mode of the extractor device 4, or in an exhaust air mode

Extractor device 4 by means of a flow connection (not shown) from the

Blowers are conveyed into a free environment. The extractor device 4 can be used advantageously both in recirculating air mode and in exhaust air mode. To face the circumstances

To be able to correspond to the location, the extractor device 4 is designed in such a way that the

Extractor hood 4 can be used both in recirculating air mode and in exhaust air mode.

Accordingly, the implementation of the invention is unnecessary here

Extractor hood device in two variants, namely for recirculation mode and for

Exhaust air operation. The necessary adjustment is made to the extractor device 4

The hob 2 was installed directly on site.

The unavoidable in the aforementioned operation of the extractor device 4

According to the invention, operating noises can be effectively reduced by means of the housing wall 16 which is designed as a double-wall and arranged in the area of the intake shaft 12, so that the aforementioned operation of the extractor device 4 is at least less disturbing for people staying in the vicinity of the hob 2.

Four further exemplary embodiments of the invention are shown in FIGS. 2a to 5, with the second exemplary embodiment according to FIGS. 2a to 2c also being designed in three variants. The aforementioned further exemplary embodiments are described below only to the extent of the respective distinguishing features from the aforementioned

Examples of embodiments explained. Otherwise, refer to the above explanations first

Embodiment referenced. Components that are the same or have the same effect are the same

Reference numerals as in the first exemplary embodiment according to FIG. 1.

The second exemplary embodiment in the three variants according to FIGS. 2a to 2c differs from the first exemplary embodiment in that a stiffening structure 24 connecting the inner wall 18 and the outer wall 20 in a force-transmitting manner is arranged in the intermediate space 22 of the double-walled housing wall 16.

The stiffening structure 24 according to the first variant of the second exemplary embodiment shown in FIG. 2a is designed as a plurality of ribs, the individual ribs being arranged relative to one another in such a way that the stiffening structure 24 in the

In the cross section shown in Fig. 2a, it has a zigzag shape.

In the second variant of the second embodiment shown in Fig. 2b, the

Stiffening structure 24 also formed as a plurality of ribs. In contrast to the first variant according to FIG. 2a, however, the individual ribs here are spaced apart from one another and arranged parallel in the intermediate space 22. s The third variant of the second exemplary embodiment according to FIG. 2c differs from the first and second variants of the second exemplary embodiment in that the double-walled housing wall 16 extends only over a section of the

Suction shaft 12 and therefore only extends over a partial height of the extractor device 4. Otherwise, i.e. directly adjoining the double-walled housing wall 16 11, the extractor device housing 6 is only single-walled.

3 shows the third exemplary embodiment of the hob according to the invention with the extractor device according to the invention. Unlike the first and second exemplary embodiments, in the space 22 of the double-walled housing wall 16 delimited by the inner wall 18 and the outer wall 20, a noise-damping filling 26 of different material than the double-walled housing wall 16 is arranged, the gap 22 having the noise-damping filling 26 in the present case third embodiment is essentially completely filled.

Fig. 4 shows the fourth embodiment of the hob according to the invention with the extractor device according to the invention. While with the aforementioned

Embodiments according to FIGS. 1 to 3, the gap 22 is filled either with a gas or a stiffening structure 24 or a noise-damping filling 26

Intermediate space 22 of the double-walled housing wall 16 is filled here both with a stiffening structure 24 designed analogously to the second exemplary embodiment according to FIG. 2a and with a noise-damping filling 26 designed analogously to the third exemplary embodiment according to FIG. 3. Accordingly, the present fourth embodiment combines the advantages of the second and third

Embodiment.

Furthermore, the fifth embodiment of the hob according to the invention with the extractor device according to the invention is shown in FIG. Similar to the aforementioned fourth exemplary embodiment, the intermediate space 22 of the double-walled housing wall 16 is here both with a stiffening structure 24 designed analogously to the second exemplary embodiment according to FIG. 2b and with one analogous to the third one

Embodiment according to Fig. 3 formed noise dampening filling 26.

Accordingly, the present fifth exemplary embodiment also combines the advantages of the second and third exemplary embodiments. In addition, the outer wall 20 of the double-walled housing wall 16 in the present fifth exemplary embodiment is designed as a perforated wall in the manner of a perforated plate. See Fig. 5, where, for the sake of visibility, the inner wall 18 is shown partially cut and, on the other hand, the one actually present in the intermediate space 22

Noise dampening filling 26 is not shown in some areas. s Due to the inventive design of the extractor device 4 and the

Hob 2 is the noise emission of the hob 2 structurally integrated

Extractor hood 4 can be significantly reduced. Accordingly, the invention enables

Compared to the state of the art, lower noise emissions for the same

Volume flow through the extractor device 4 or a constant 10 noise emission with an increased volume flow compared to the prior art, i.e. with a stronger suction and thus a higher suction power of over

Hob 2 rising vapors.

However, the invention is not limited to the present embodiments. See, for example, the relevant statements in the introduction to the description, ı5 according to which the extractor device according to the invention can be used advantageously both for domestic hobs and for commercial hobs, i.e. hobs for professional use. The type and functioning of the hob can also be used in a wide range of suitable

Limits can be freely selected and not limited to induction hobs, as is the case with this one

The same applies to the number and design of the

Cooking zones arranged on the hob plate of the hob. For example, the invention can also be used advantageously in so-called surface hobs.

Claims (11)

Patent claims 1. Extractor device (4) for a hob (2) for structural integration into the hob (2), comprising an extractor device housing (6) for arranging the extractor device (4) below a hob plate (8) of the hob (2) with a Suction opening (10) in the hob plate (8) connected to flow in a suction shaft (12), a grease filter (14) arranged in the extractor housing (6), an odor filter arranged in the extractor housing (6) and in the flow direction after the grease filter (14) and an in the extractor device housing (6) and in the flow direction after the grease filter (14) arranged fan for the suction of vapors rising above the hob (2), characterized in that the extractor device housing (6) has at least one double-walled at least in the area of the suction shaft (12). formed housing wall (16) with an inner wall (18) facing the grease filter (14) and an outer wall (20) facing away from the grease filter (14), the inner wall (18) and the outer wall (20) enclosing an intermediate space (22). 2. Extractor device (4) according to claim 1, characterized in that the grease filter (14) is arranged such that the grease filter (14) extends at least partially into the area of the suction shaft (12), preferably that the grease filter (14 ), starting from the suction opening (10), extends into an interior of the extractor device housing (6), particularly preferably that the grease filter (14) is designed as a V-shaped grease filter. 3. Extractor device (4) according to claim 1 or 2, characterized in that the extractor device housing (6) has at least one double-walled housing wall (16) only in the area of the suction shaft (12), preferably that the extractor device housing (6) in the Area of the suction shaft (12) only has a single double-walled housing wall (16). 4. Extractor hood device (4) according to one of claims 1 to 3, characterized in that one of the at least one double-walled housing wall or the one double-walled housing wall (16) is arranged directly adjacent to the grease filter (14), preferably on the side of the grease filter (14) facing away from the odor filter and the fan. 5. Extractor device (4) according to one of claims 1 to 4, characterized in that the intermediate space (22) of at least one of the at least one double-walled housing wall (16) is only filled with a gas or evacuated. 6. Extractor hood device (4) according to one of claims 1 to 5, characterized in that in the intermediate space (22) of at least one of the at least one double-walled housing wall (16) a stiffening structure (24) connecting the inner wall (18) and the outer wall (20) in a force-transmitting manner is arranged, preferably that the stiffening structure (24) is designed as a plurality of ribs, particularly preferably that the stiffening structure (24) has a zigzag shape in cross section. 7. Extractor device (4) according to one of claims 1 to 6, characterized in that in the intermediate space (22) of at least one of the at least one double-walled housing wall (16) a noise-damping filling (26) of different material than the double-walled housing wall (16) is arranged, Preferred that the gap (22) is essentially completely filled with the noise dampening filling (26). 8. Extractor device (4) according to one of claims 1 to 7, characterized in that the inner wall and / or the outer wall (20) of at least one of the at least one double-walled housing wall (16) are / is designed as a perforated wall. 9. Extractor device (4) according to one of claims 1 to 8, characterized in that the extractor device housing (6) is designed with the at least one double-walled housing wall (16) and the grease filter (14) and / or the odor filter is detachable in this way Extractor extractor housing (6) is arranged so that the respective filter can be cleaned and / or replaced on site. 10. Hob (2) with an extractor device (4) structurally integrated in the hob (2), characterized in that the extractor device (4) is designed according to one of claims 1 to 9. 11. Hob (2) according to claim 10, characterized in that the extractor device (4) is arranged in the hob (2) in such a way that the fat filter (14) and / or the odor filter can be cleaned and / or replaced on site .