Extractor hood and combination device

Abstract

The invention relates to a cooker hood (1) for extracting cooking fumes (2) from above a cooktop (3) in a downward direction by means of an airflow (4), comprising a hood housing (5) having at least one air intake opening (6) and at least one air outlet (7) for the airflow (4), at least one fan (8) arranged in the hood housing (5) for generating the airflow (4), and at least one separating element (9) arranged in the hood housing (5) in the airflow (4) between the air intake opening (6) and the fan (8) for separating one or more components of the cooking fumes (2), in particular fat and / or oil, from the airflow (4), wherein the separating element (9) is removable from the hood housing (5) via the air intake opening (6).wherein the airflow (4) in the exhaust housing (5) is guided in a negative pressure section (10) from the air intake opening (6) via the separating element (9) to the fan (8) and is guided by the fan (8) via at least one positive pressure section (11) in the exhaust housing (5) to the air outlet (7) and is blown out of the exhaust housing (5) there, and wherein at least one filter element (12) arranged in the exhaust housing (5) in the airflow (4) between the separating element (9) and the fan (8) in the negative pressure section (10) for reducing odors in the airflow (4), wherein the filter element (12) can be removed from the exhaust housing (5) through the air intake opening (6), and wherein the separating element (9) covers an access opening (14) when installed.wherein the access opening (14) when the separating element (9) is removed from the extractor housing (5) through the air intake opening (6) releases the filter element (12) for its removal through the access opening (14) and through the air intake opening (6), and a combination appliance (18) with a cooktop (3) and a range hood (1) arranged on its underside.

Description

[0001] The invention relates to an extractor hood for extracting cooking fumes from above a cooking surface in a downward direction by means of an air flow, comprising an extractor housing which has at least one air intake opening and at least one air outlet for the air flow, at least one fan arranged in the extractor housing for generating the air flow, at least one separation element arranged in the extractor housing in the air flow between the air intake opening and the fan for separating one or more components of the cooking fumes, in particular fat and / or oil, from the air flow, wherein the separation element can be removed from the extractor housing via the air intake opening, wherein the air flow in the extractor housing is guided in a negative pressure section from the air intake opening via the separation element to the fan and is guided by the fan via at least one positive pressure section in the extractor housing to the air outlet and is blown out of the extractor housing there.

[0002] The invention also relates to a combination appliance with a hob and such an extractor hood.

[0003] Such a combination device is known. The disadvantage of such combination devices is the usual arrangement of filter elements for reducing odors in the airflow in the area of ​​the overpressure section, and the resulting complex handling when changing the filter. Numerous manual steps are required before a filter element can be removed from the fume cupboard housing.

[0004] It is therefore an object of the invention to provide an improved extractor hood and an improved combination device which offer a simple construction and uncomplicated handling when changing the filter.

[0005] This problem is solved by an extractor hood having the features of claim 1.

[0006] By providing at least one filter element arranged in the extractor housing in the air stream between the separation element and the fan in the negative pressure section to reduce odors in the air stream, the filter element being removable from the extractor housing through the air intake opening, and the separation element covering an access opening when inserted, the access opening releasing the filter element for removal through the access opening and through the air intake opening when the separation element is removed from the extractor housing through the air intake opening, the filter element can be made easily accessible for filter changes thanks to a simple construction. When changing the filter, the filter element can thus be easily removed and replaced via the air intake opening, which otherwise serves to suck in cooking fumes during operation. This eliminates the need for an additional external opening in the extractor housing to change the filter element.The air intake opening is easily accessible thanks to its position on the top of the extractor housing, even when the extractor hood is installed in a kitchen unit. The separation element arranged at the air intake opening can advantageously be removed for cleaning via the air intake opening of the extractor housing. This allows separated components of the cooking fumes, in particular grease and / or oil, to be easily removed from the separation element. At the same time, the filter element, which is arranged in the air stream to reduce odors from the cooking fumes, can also be changed particularly easily. The air stream is guided in a negative pressure section in the extractor housing from the air intake opening upstream of the fan over the separation element and is freed of grease and / or oil. The cleaned air stream is then passed through the filter element in the negative pressure duct section, where odor molecules from the cooking fumes are separated from the air stream.The air flow is then sucked in by the fan. The fan then pushes the air flow through the positive pressure section in the extractor housing to the air outlet. The separation element, which can be removed via the air intake opening, covers the access opening when the separation element is inserted into the extractor housing. When the separation element is removed, the filter element is thus made accessible for removal. When the separation element is inserted, the separation element covers the access opening. To replace it, a new or regenerated filter element can be inserted through the air intake opening into the extractor housing and through the access opening into its designated place in the negative pressure section. This makes it possible to change the filter element, which is located upstream of the fan, via the air intake opening of the extractor hood in just a few steps.

[0007] Advantageous embodiments and further developments of the invention emerge from the dependent claims. It should be noted that the features listed individually in the claims can also be combined with one another in any technologically expedient manner, thus revealing further embodiments of the invention.

[0008] According to a preferred embodiment of the invention, the access opening provides access to the filter element for its removal through the air intake opening when the separating element is removed from the extractor housing. Removing the separating element opens access to the filter element, so that the filter element can also be removed via the air intake opening following removal of the separating element.

[0009] Particularly preferred is an embodiment in which the filter element has at least one handle element for manual removal of the filter element from the extractor housing. The filter element can be easily grasped for removal using the handle element. The handle element can be designed as a recessed grip in the top of the filter element. Multiple handle elements can also be provided, for example, multiple grip holes in the top of the filter element, so that the filter element can be easily grasped by hand using tweezers and moved upwards through the access opening from the air intake opening.

[0010] A particularly advantageous embodiment of the invention relates to the fact that the filter element can be removed from the extractor housing through the access opening, together with the separation element, via the air intake opening. The simultaneous removal of the filter element together with the separation element reduces the number of steps required when changing the filter, since the filter element and the separation element can be moved out of the air intake opening as an interconnected unit.

[0011] A particularly advantageous embodiment provides that the filter element is connected to the separation element via at least one manually detachable connecting means. The manually detachable connecting means allows the interconnected assembly of filter element and separation element to be easily separated from one another after joint removal through the air intake opening. The connecting means allows the assembly of filter element and separation element to be easily connected to one another before insertion through the air intake opening. The connecting means can be magnetic or designed as a snap-in connection, screw connection, or plug-in connection. Separating the filter element and separation element facilitates separate cleaning.

[0012] A particularly advantageous embodiment of the invention provides that the filter element can be removed from the fume cupboard housing via the vacuum section through the air intake opening. For cleaning or replacement, a clogged filter element can be removed from the positive pressure section through the access opening via the vacuum section and the air intake opening from the fume cupboard housing. For filter replacement, a new or refurbished filter element can be inserted through the air intake opening into the fume cupboard housing and inserted into its designated location in the positive pressure section via the access opening via the vacuum section.

[0013] According to an advantageous embodiment of the invention, the filter element is arranged below the separation element, with an upper side of the filter element permeable to the air flow forming a lower side of the separation element permeable to the air flow. When the separation element is removed upwards from the extractor housing via the air intake opening, the filter element below the separation element is easily accessible from above. Thus, the filter can be changed simply by removing the filter element upwards through the access opening and the air intake opening. The new or regenerated filter element is also inserted from above via the air intake opening and downwards through the access opening into the vacuum section.

[0014] Particularly preferred is an embodiment in which the access opening extends below the air intake opening. The air intake opening located above the access opening allows easy access to the filter seat for the filter element in the overpressure duct section from above when the separation element is removed from the extractor housing.

[0015] A particularly advantageous embodiment of the invention relates to the at least one fan being arranged above the vacuum section, drawing air upwards. In this position, the fan is protected from liquid penetrating the vacuum section through the air intake opening.

[0016] A particularly advantageous embodiment of the invention provides that the vacuum section forms a collecting tray for separated components of the cooking vapors, in particular fat and / or oil, as well as for water flowing in through the air intake opening. If the vacuum section below the fan serves as a collecting tray, the fan is particularly effectively protected from liquid penetrating the vacuum section through the air intake opening.

[0017] Particularly preferred is an embodiment in which the filter element has a collecting tray for separated components of the cooking vapors, in particular fat and / or oil, as well as for water flowing in through the air intake opening. If the filter element serves as a collecting tray, the extractor hood is particularly effectively protected from liquid penetrating the vacuum section through the air intake opening.

[0018] A particularly advantageous embodiment provides that the airflow downstream of the filter element in the negative pressure section is divided into two partial airflows, which are guided via two fans and two positive pressure sections in the extractor housing to two air outlets and then blown out of the extractor housing. The use of two fans in the extractor hood significantly increases the possible airflow volume, allowing cooking fumes to be more effectively extracted in a downward direction.

[0019] In the separation element, the air flow is preferably split into two partial air flows and deflected several times by walls in order to separate the components of the cooking vapors, in particular the fat and / or oil, from the air flow. The deflections of the air flow cause the water droplets in the air flow as well as the fat and oil particles of the cooking vapors to be accelerated outwards by centrifugal force and pressed against the walls of the separation element and separated. The separation element is preferably cuboid-shaped and mirror-symmetrical to a central plane and has two. This advantageously creates two flow channels in the separation element, which are formed by two closed, parallel side walls. It is also conceivable to use other separation or filter devices for separating or filtering fat and oil particles, such as expanded metal filters, as the separation element.The shape can also differ from the design described here and can be, for example, round, hexagonal or rotationally symmetrical.

[0020] A particularly advantageous embodiment provides that the separation element is spatially located between the fans and above the filter element, and that the fans are connected to the filter element via two duct sections of the vacuum section below the separation element. Furthermore, the invention relates to a combination appliance with a cooktop and an extractor hood arranged on the underside thereof, as described in more detail above and below. The extractor hood is designed as a cooktop hood for extracting cooking fumes from above the cooktop in a downward direction. The height of the combination appliance is preferably no more than 25 cm, preferably no more than 20 cm.

[0021] Further features, details, and advantages of the invention will become apparent from the following description and the drawings, which show an exemplary embodiment of the invention. Corresponding objects or elements are provided with the same reference numerals in all figures. They show: Figure 1 shows a combination device with extractor hood according to the invention, Figure 2 shows a sectional view through the combination device, Figure 3 shows a further sectional view with the separation element removed, Figure 4 shows a sectional view through the fans, Figure 5 shows a further sectional view through the combination device, Figure 6 shows a sectional view through the filter element, Figure 7 shows a rear view of the combination device, and Figure 8 shows a further sectional view through the filter element.

[0022] In the Figure 1Denoted by the reference numeral 18, a combination appliance according to the invention is shown. This combination appliance 18 comprises a cooking surface 3 and an extractor hood 1 according to the invention arranged on the underside thereof. This extractor hood 1 is designed as a cooking surface extractor for extracting cooking vapors 2 from above the cooking surface 3 in a downward direction 19. Thus, when preparing food on the cooking surface 3 in the cookware 20 arranged thereon, the cooking vapors 2 rising therefrom are deflected downwards and extracted via at least one air intake opening 6 of the extractor hood 1. The extractor hood 1 has an extractor housing 5 in which the air intake opening 6 and two air outlets 7 ( Fig. 7) for the air flow 4. Two fans 8 for generating the air flow 4 are also arranged in the extractor housing 5. However, only one fan or more than two fans may be provided, or only one air outlet or more than two air outlets. The air flow is distributed over two overpressure sections 11 ( Fig. 7 ) in the extractor housing 5 to the air outlets 7 ( Fig. 7 ) and blown out of the trigger housing 5.

[0023] The Figure 2 shows a sectional view through the combination device 18 according to Figure 1 . In this illustration, it can be seen that a separation element 9 is arranged in the extractor housing 5 of the extractor 1 in the air flow 4 between the air intake opening 6 and the fan 8. This separation element 9 serves to separate one or more components of the cooking fumes 2 ( Fig. 1 ), especially grease and / or oil, from the air flow 4. It can be removed for cleaning via the air intake opening 6, as shown in Figure 2 can be seen. In the extractor housing 5, in the negative pressure section 10 between the separator element 9 and the fans 8, a filter element 12 is arranged in the air stream 4, which serves to reduce odors. This can be a filter element 12 with activated carbon, which binds the odor molecules from the cooking fumes 2. Figure 81 shows a sectional detailed view of the filter element 12. Here it can be seen that the filter element 12 has a cavity 30 which is surrounded by a filter material frame 31 through which air flows from the inside to the outside. According to the invention, the separation element 9 covers an access opening 14 when inserted. When the separation element 9 is removed from the extractor housing 5 through the air intake opening 6, the access opening 14 releases the filter element 12 for its removal through the access opening 14 and through the air intake opening 6. Thus, when the separation element 9 is removed via the air intake opening 6, the access opening 14 is simultaneously released, which provides access to the filter element 12 for its removal through the air intake opening 6. As a result, the filter element 12 can be made easily accessible for filter changes thanks to a simple construction.When changing the filter, the filter element 12 can be easily removed and replaced via the air intake opening 6, which otherwise serves to suck in cooking fumes during operation. The filter element 12 can be removed from the extractor housing 5 via the vacuum section 10 through the air intake opening 6. For cleaning or replacement, a clogged filter element 12 can be taken out of the vacuum section 10 through the access opening 14, via the vacuum section 10 through the air intake opening 6, from the extractor housing 5. When changing the filter, a new or regenerated filter element 12 is inserted through the air intake opening 6 into the extractor housing 5 and via the vacuum section 10 through the access opening 14 into its intended place in the vacuum section 10. As shown in . Figure 2As can also be seen, when the separating element 9 is removed from the extractor housing 5, the access opening 14 provides access to the filter element 12 for its removal through the air intake opening 6. The filter element 12 can have one or more handle elements 28 ( Fig. 6) for manually removing the filter element 12 from the extractor housing 5. The filter element 12 can thus be manually released from the filter seat 27 in the vacuum section 10. The filter element 12 can then be removed via the access opening 14. First, the separation element 9 is removed and then the filter element 12, preferably together with the collecting tray formed thereon. After removal, the remaining filter element and collecting tray can be separated from one another for cleaning. The air flow 4 is guided in the extractor housing 5 in a vacuum section 10 from the air intake opening 6 via the separation element 9 and through the filter element 12 to the fans 8. The air flow 4 is advantageously divided into two partial air flows in the separation element 9 and deflected several times by walls 24 of the separation element 9 in order to separate the components of the cooking vapors 2, in particular the fat and / or the oil, from the air flow.The multiple deflection of the air flow 4 causes water droplets, fat or oil particles of the cooking fumes in the air flow 4 to be accelerated outwards by centrifugal force and to be separated on the walls 24 of the separation element 9.

[0024] In Figure 3It can be seen how the filter element 12 can also be removed from the vacuum section 10 through the air intake opening 6 from the extractor housing 5 via the access opening 14. The filter element 12 can also be removed from the extractor housing 5 via the access opening 14 together with the separation element 9 via the air intake opening 6. With the simultaneous removal of the filter element 12 together with the separation element 9, the required manual steps when changing the filter are reduced, since the filter element 12 can be moved together with the separation element 9 as an interconnected unit out of the air intake opening 6. For this purpose, the filter element 12 can be connected to the separation element 9 via at least one manually detachable connecting means. The interconnected unit can be Figure 3The filter element 12 and the separating element 9 can be easily separated from one another after being removed together through the air intake opening. The connecting means allow the assembly of the filter element 12 and the separating element 9 to be easily connected to one another before being inserted through the air intake opening 6. The connecting means are preferably designed as magnets, so that the filter element 12 is releasably attached to the magnetic separating element 9. Figure 3 a further sectional view through the combination device 18 according to the Figures 1 and 2shown. In this illustration, the separation element 9 is also shown removed from the extractor housing 5 of the extractor 1 via the air intake opening 6. For this purpose, the guide grille 21 for directing the air flow 4 through the air intake opening 6 and a cover element 22, which is movably displaceable on the guide grille 21 and influences the air flow direction, have been removed from the air intake opening 6. The separation element 9 is thus accessible and can be manually removed upwards via the air intake opening 6, as shown.

[0025] In Figure 4is a sectional view through the fans 8 of the extractor hood 1. Here, it can be seen that the fans 8 are arranged above the vacuum section 10, drawing air upwards. This arrangement protects the fans 8 from liquid penetrating into the vacuum section 10 via the air intake opening 6. For this purpose, the vacuum section 10 advantageously forms a collecting tray for separated components of the cooking fumes, in particular fat and / or oil, as well as for water flowing in via the air intake opening. Thus, the vacuum section 10 below the fans 8 serves as a collecting tray, and the fans 8 are particularly effectively protected from liquid penetrating into the vacuum section 10 via the air intake opening 8. The air flow 4 ( Fig. 4 ) is divided into two partial air streams 23 after the filter element 12 in the vacuum section 10 ( Fig. 2 ), which is connected via the two fans 8 and the two overpressure sections 11 ( Fig. 7) in the extractor housing 5 to the two air outlets 7 ( Fig. 7 ) and blown out of the trigger housing 5.

[0026] In Figure 5 is a further sectional view through the combination device 18 according to the Figures 1 to 4 shown. In the example shown here, the separation element 9 is cuboid-shaped and mirror-symmetrical to a central plane. As a result, two flow channels are advantageously formed in the separation element 9, which are delimited by two closed, parallel side walls 26. Alternatively, another separation or filter device for separating or filtering grease and oil particles, e.g., an expanded metal filter, can be used as the separation element 9. The shape of the separation element 9 can also differ from the design shown here and can be, for example, round or hexagonal or rotationally symmetrical. When the separation element 9 is used, as in Figure 5shown, the separating element 9 covers the access opening 14 ( Fig. 4). Thus, when the separation element 9 is removed via the air intake opening 6, the access opening 14 is simultaneously released, which provides access to the filter element 12 for its removal through the air intake opening 6. When the separation element 9 is removed from the extractor housing 5, the access opening 14 releases the filter element 12 for its removal through the air intake opening 6. Thus, no additional, external opening is required in the extractor housing 5 of the extractor hood 1 or in the hob 3 of the combination appliance 18. The air intake opening 6 is easily accessible in the hob 3 even when the combination appliance 18 is in its usual installed state in a piece of kitchen furniture (not shown). Cleaning the separation element 9 provides a simple way of also changing the filter element 12.When the separation element 9 is removed via the air intake opening 6, the access opening 14 is simultaneously opened to make the filter element 12 accessible for manual removal. In the exemplary embodiment shown, the removable filter element 12 is arranged below the separation element 9, with an upper side of the filter element 12 permeable to the air flow 4 forming a lower side of the separation element 9 permeable to the air flow 4. The access opening 14 here extends below the air intake opening 6. The inserted separation element 9 is located spatially between the fans 8 and above the filter element 12, and the fans 8 are connected to the filter element 12 via two duct sections 17 of the vacuum section 10 below the separation element 9.The inserted filter element 12 is spatially located between the fans 8 and below the separation element 9, and the fans 8 are connected to the filter element 12 via two channel sections 17. The filter element 12 can be formed from sub-segments that can be removed one after the other via the access opening 14, or the filter element 12 can be removed in one piece via the access opening 14.

[0027] The filter element 12 preferably has grip elements 28 ( Fig. 6 ) for manual removal of the filter element 12. The grip elements allow easy gripping of the filter element 12 for removal. The grip elements are preferably formed as a recessed grip in the filter element 12. The filter element 12 can thus be easily grasped by hand and moved upwards through the access opening 14 out of the air intake opening 6.

[0028] The Figure 7 shows a rear view of the combination device 18 according to the Figures 1 to 6This view shows the air outlets 7, through which the air flow 4 is blown out of the extractor housing 5 in a divided form. An additional post-filter (not shown) can be connected to the air outlets 7 for recirculation mode. An exhaust duct (not shown) can be connected to the air outlets 7, which reunites the divided air flows from the air outlets. Otherwise, the air flow can be directed outside the kitchen via a wall connection (not shown).

[0029] For this purpose, at least one air duct (not shown) is provided between air outlet 7 and wall connection. Reference symbol list

[0030] 1 Extractor hood 2 Cooking fumes 3 Hob 4 Air flow 5 Extractor housing 6 Air intake opening 7 Air outlet 8 Fan 9 Separator element 10 Negative pressure section 11 Positive pressure section 12 Filter element 14 Access opening 15 Suction chamber 16 Floor 17 Duct section 18 Combination appliance 19 Direction 20 Cookware 21 Guide grille 22 Cover element 23 Partial air flows 24 Walls 26 Side walls 27 Filter seat 28 Handle element 30 Cavity 31 Filter material frame 32 Collecting tray

Claims

1. Extractor hood (1) for extracting cooking fumes (2) from above a cooking surface (3) in a downward direction by means of an air flow (4), comprising - an extractor housing (5) having at least one air intake opening (6) and at least one air outlet (7) for the air flow (4), - at least one fan (8) arranged in the extractor housing (5) for generating the air flow (4), - at least one separating element (9) arranged in the extractor housing (5) in the air flow (4) between the air intake opening (6) and the fan (8) for separating one or more components of the cooking fumes (2), in particular fat and / or oil, from the air flow (4), wherein the separating element (9) can be removed from the extractor housing (5) via the air intake opening (6),wherein the air flow (4) in the extractor housing (5) is guided in a negative pressure section (10) from the air intake opening (6) via the separation element (9) to the fan (8) and is guided by the fan (8) via at least one positive pressure section (11) in the extractor housing (5) to the air outlet (7) and is blown out of the extractor housing (5) there, characterized byat least one filter element (12) arranged in the extractor housing (5) in the air flow (4) between the separation element (9) and the fan (8) in the negative pressure section (10) for reducing odors in the air flow (4), wherein the filter element (12) can be removed from the extractor housing (5) through the air intake opening (6), wherein the separation element (9) covers an access opening (14) in the inserted state, wherein the access opening (14) releases the filter element (12) for removal through the access opening (14) and through the air intake opening (6) when the separation element (9) is removed from the extractor housing (5).

2. Extractor hood (1) according to claim 1, characterized in that the access opening (14) provides access to the filter element (12) for its removal through the air intake opening (6) when the separation element (9) is removed from the extractor housing (5).

3. Extractor hood (1) according to claim 2, characterized in thatthe filter element (12) has a handle element (28) for manually removing the filter element (12) from the extractor housing (5).

4. Extractor hood (1) according to claim 1, characterized in that the filter element (12) can be removed from the extractor housing (5) via the access opening (14) together with the separation element (9) via the air intake opening (6).

5. Extractor hood (1) according to claim 4, characterized in that the filter element (12) is connected to the separation element (9) via a manually detachable connecting means.

6. Extractor hood (1) according to one of the preceding claims, characterized in that the filter element (12) can be removed from the extractor housing (5) via the vacuum section (10) through the air intake opening (6).

7. Extractor hood (1) according to one of the preceding claims, characterized in thatthe filter element (12) is arranged below the separation element (9), wherein an upper side of the filter element (12) permeable to the air flow (4) forms a lower side of the separation element (9) permeable to the air flow (4).

8. Extractor hood (1) according to claim 7, characterized in that the access opening (14) extends below the air intake opening (6).

9. Extractor hood (1) according to one of the preceding claims, characterized in that the at least one fan (8) is arranged above the negative pressure section (10) with upward suction.

10. Extractor hood (1) according to one of the preceding claims, characterized in that the vacuum section (10) forms a collecting tray (32) for separated components of the cooking fumes (2), in particular fat and / or oil, as well as for water flowing in via the air intake opening (6).

11. Extractor hood (1) according to one of claims 1 to 9, characterized in thatthe filter element (12) has a collecting tray for separated components of the cooking fumes (2), in particular fat and / or oil, as well as for water flowing in via the air intake opening (6).

12. Extractor hood (1) according to one of the preceding claims, characterized in that the air flow (4) after the filter element (12) in the negative pressure section (10) is divided into two partial air flows (23), which are guided via two fans (8) and two positive pressure sections (11) in the extractor housing (5) to two air outlets (7) and blown out of the extractor housing (5).

13. Extractor hood (1) after 12, characterized in that the inserted separation element (9) is located spatially between the fans (8) and above the filter element (12) and the fans (8) are connected to the filter element (12) via two channel sections (17) of the negative pressure section (10) below the separation element (9).

14. Combination appliance (18) with a cooking surface (3) and an extractor hood (1) arranged on the underside thereof according to one of the preceding claims, wherein the extractor hood (1) is designed as a cooking surface extractor for extracting cooking fumes (2) from above the cooking surface (3) in a downward direction (19).

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