Fume extractor in the cooking area

Abstract

A cooktop has a ventilation system and a cooktop surface (1) for placing pots (2) and pans. The ventilation system comprises an air inlet opening (4) arranged in a recess of the cooktop surface (1), a fan (8) for drawing air through the air inlet opening (4), a grease filter (6), and an odor filter (7) arranged downstream of the grease filter (6).

Description

Field of invention

[0001] The invention relates to a cooktop with a ventilation device and a cooktop surface for placing pots and pans, wherein the ventilation device comprises an air inlet opening arranged in a recess of the cooktop surface, a fan for drawing in air through the air inlet opening and a grease filter. background

[0002] A classic extractor hood is positioned above the cooktop. The steam and fumes, which rise due to their heat, can be extracted very effectively.

[0003] However, due to the disruptive appearance of the classic extractor hood above the hob, an alternative proposal was made to arrange the extractor below the hob surface and to extract the fumes downwards through an air inlet opening located in the hob surface.

[0004] A disadvantage of this solution is the limited space available for the grease filter beneath the cooktop surface and the resulting difficulty in making it removable for cleaning. Furthermore, dirt and liquids fall into the extractor hood through the air intake opening. Therefore, a dirt collection device that can be removed for emptying must be provided.

[0005] EP 3 722 677 discloses a cooktop with an extractor hood incorporating grease and odor filters. The odor filters are not removable.

[0006] WO 2020 / 212261 also shows a range hood with grease and odor filters.

[0007] WO 2019 / 038632 shows a range hood with a grease filter and an odor filter. Both filters can be removed through the exhaust vent.

[0008] DE 10 2013 007722 shows a cooker hood with a filter insert which can be removed from the extraction unit. The filter insert comprises a first and a second filter element.

[0009] WO 2019 / 096701 A1 concerns a cooktop extractor device which has at least one extraction opening in the top, a fan arranged offset downwards from the extraction opening and a connecting channel between the extraction opening and the fan.

[0010] EP 3 978 811 A1 relates to a cooker hood unit for installation below a hob, comprising a fan for extracting cooking fumes and an intake chamber with an inlet opening for drawing in fumes from above the hob and a through-opening for conveying the fumes in the intake chamber to the fan, wherein a mounting section for magnetically attaching an odor filter unit in the intake chamber in front of the through-opening is provided. In one embodiment, the odor filter has a first air inlet surface and a second air inlet surface, which are arranged at an angle to each other and are connected to each other by a coupling magnet. Description of the invention

[0011] The task is to provide a cooktop whose extractor fan ensures improved neutralization of the air.

[0012] This problem is solved by the subject matter of the independent claim. Accordingly, the cooktop has a ventilation device and a cooktop surface, wherein the ventilation device comprises the following: an air inlet opening which is located in a recess of the hob, a fan for drawing in air through the air inlet opening, a grease filter, and an odor filter located downstream of the grease filter.

[0013] The cooktop surface is the area on which pans and pots can be placed for cooking. The cooktop surface can therefore comprise several zones; in private households, four zones are common.

[0014] The term "downstream" defines the order in which components are arranged within the airflow or airflow duct of the extractor hood. If the odor filter is located downstream of the grease filter, this means that the air entering the extractor hood first passes through the grease filter and only subsequently through the odor filter.

[0015] The extractor hood is primarily a recirculating system, which blows the filtered air back into the kitchen. Alternatively, the extractor hood can also vent the air to the outside.

[0016] The installation of an odor filter in the extractor hood has the advantage that the drawn-in air is freed from bad odors, and the air can be blown back into the kitchen odor-neutral.

[0017] The odor filter has a first air inlet surface and a second air inlet surface, which are arranged at an angle to each other greater than 2°, in particular greater than 5°, and in particular greater than 10°. Both the grease filter and the odor filter can be removed for cleaning through the cutout in the cooktop surface. A separate opening for servicing either of these components is therefore unnecessary. In particular, the air inlet surfaces are flat, and the odor filter comprises only these two air inlet surfaces, namely the first and the second, and thus no other air inlet surfaces.

[0018] The number of air inlet surfaces is not limited by this definition. The first and second air inlet surfaces can be two of several air inlet surfaces.

[0019] The arrangement of two air inlet surfaces at a specific positive angle to each other means that not all air inlet surfaces of the odor filter lie in a single plane. Preferably, the odor filter has a bend, so that the first air inlet surface is at an angle to the second air inlet surface. A bent or angled odor filter has the advantage that, due to its geometry, it can also be removed from the extractor hood through a narrow air inlet opening. The air inlet opening should not be too large, as this reduces the usable surface area of ​​the cooktop.

[0020] In a particular embodiment, the odor filter comprises a first air outlet surface and a second air outlet surface, wherein the first air outlet surface is arranged parallel to the first air inlet surface and the second air outlet surface is arranged parallel to the second air inlet surface. This geometric configuration of the odor filter allows it to be designed as compactly as possible.

[0021] Preferably, the first and / or second air inlet surface is arranged at an angle of no more than 45°, in particular no more than 30°, and in particular no more than 15°, to the cooktop surface. The cooktop surface is the surface on which the pans and pots are placed for cooking. In particular, the first and / or second air inlet surface is arranged horizontally.

[0022] To keep the height of the extractor hood as low as possible, the odor filter is positioned horizontally below the cooktop surface. The horizontal area available is the size of the cooktop surface. This allows the odor filter to be generously sized. The larger the filter area, the lower the air resistance in the airflow duct.

[0023] Advantageously, a portion, particularly more than half, of the total air outlet area of ​​the grease filter, and in particular the entire air outlet area of ​​the grease filter, is arranged at an angle of no more than 45°, particularly no more than 30°, and in particular no more than 15°, to a vertical plane relative to the cooktop surface. These angular intervals also include an angle of 0°. This ensures that the grease filter is not arranged horizontally like the odor filter, but vertically. With a vertical arrangement of the grease filter, the air flows horizontally through it and is then deflected to flow vertically through the horizontally arranged odor filter.

[0024] The vertical arrangement of the grease filter allows for a compact design very close to the air intake opening. Combined with the horizontal arrangement of the odor filter, this enables a space-saving arrangement of both components and easy removal through the air intake opening for cleaning.

[0025] In particular, the entire air outlet surface, especially a part or more than half of the total air outlet surface, of the grease filter is arranged at an angle of at least 45°, especially at least 60°, to the first and / or second air inlet surface of the odor filter. In other words, the grease filter and the odor filter are at a positive angle to each other.

[0026] It is advantageous to position the odor filter and the fan on opposite sides of the grease filter. That is, the odor filter is located on one side of the grease filter and the fan on the other, with the first and second sides facing each other. This arrangement has the advantage of providing sufficient space for both the fan and the odor filter, allowing the odor filter to have a correspondingly large filter surface area.

[0027] In a particular embodiment, the odor filter is arranged laterally to the grease filter and / or between the grease filter and the edge of the cooktop. The term "laterally" is to be understood in relation to a conventional cooktop arrangement. "Laterally" thus means that the odor filter is not located below the grease filter, but to the side.

[0028] The air flows horizontally between the odor filter and the fan, passing below the grease filter. This allows the fan and the odor filter to be positioned on opposite sides of the grease filter.

[0029] In particular, the odor filter is arranged in an air duct section which is designed such that the airflow direction changes direction within it. A change in airflow direction is understood to mean a change of direction of more than 90°, in particular more than 120°, and in particular more than 150°.

[0030] In particular, the odor filter is an activated carbon filter and / or it has a fixed shape and / or a handle. A "fixed shape" means that the odor filter cannot be folded or rolled up. Its shape is fixed and cannot be changed.

[0031] In a particular embodiment, the grease filter and the odor filter are arranged and designed such that the odor filter can only be removed if the grease filter has already been removed through the recess, and the odor filter can be removed immediately after the grease filter has been removed. This means that after removing the grease filter, no further component needs to be removed to access and remove the odor filter. Brief description of the drawings

[0032] Further embodiments, advantages, and applications of the invention will become apparent from the dependent claims and from the following description with reference to the figures. These figures show: Fig. 1 a cross-section through a cooktop with a ventilation device located below the cooktop surface; Fig. 2 The option to remove the odor filter for cleaning through the air intake opening. Method for implementing the invention

[0033] The Fig. 1 The figure shows a cooktop with a cooking surface 1 for placing pots 2 and pans. The cooktop is shown in its standard installation position. The terms top, bottom, left, right are used as in Fig. 1 To be understood, the cooktop surface 1 is shown. A cooktop edge 3 is present on each side of the cooktop surface. It borders the cooktop surface 1. The cooktop has an air inlet opening 4 in the center, which is located in a recess in the cooktop surface 1.

[0034] The air inlet opening 4 forms the inlet to the extractor hood, which is located below the cooktop surface 1. The extractor hood further comprises an air duct 5, a grease filter 6, an odor filter 7, and a fan 8. The fan 8 draws in air through the air inlet opening 4, which then flows through the air duct 5. The arrows indicate the airflow through the air duct 5. After entering through the air inlet opening 4, the air flows through the grease filter 6. Next, the air flows through the odor filter 7, which is located downstream of the grease filter 6. The air then flows horizontally below the grease filter 6 to the fan 8. After passing the fan 8, the air exits the extractor hood.

[0035] The grease filters 6 are arranged almost vertically. They are positioned at an angle A of approximately 10° to the dashed line 11, which represents the vertical line to the cooktop surface 1. Line 12 shows an extension of the left grease filter 6. Due to the vertical arrangement, the grease filter 6 can be easily removed through the air inlet opening 4. Together with the drip tray 13, the grease filter 6 forms a removable unit.

[0036] The air flows through the grease filter 6 and exits at the external air outlet 61. The air then flows to the left towards the odor filter 7, which is located to the side of the grease filter 6. The fan 8 and the odor filter 7 are positioned opposite each other in relation to the grease filter 6. The odor filter 7 is also located between the grease filter 6 and the edge of the cooktop 3.

[0037] The odor filter 7 can be an activated carbon filter. It has a first flat air inlet surface 71 and a second flat air inlet surface 72. These are arranged at an angle B of approximately 10° to each other. The odor filter 7 thus has a bend 73, which separates the two air inlet surfaces 71 and 72 from each other. The first air inlet surface 71 is horizontal and thus parallel to the cooktop surface 1. The second air inlet surface 72 is at an angle B of approximately 10° to the cooktop surface 1. Furthermore, the odor filter 7 has a first air outlet surface 74, which is arranged parallel to the first air inlet surface 71, and a second air outlet surface 75, which is arranged parallel to the second air outlet surface 72.

[0038] While the grease filter 6 is arranged essentially vertically, the odor filter 7 lies horizontally in the extractor hood. An angle C of approximately 80° is formed between the air outlet surface 61 of the grease filter 6 and the first air inlet surface 71. The angle between the air outlet surface 61 of the grease filter 6 and the second air inlet surface 72 of the odor filter 6 is approximately 90°. This relative inclination of the two filters results in a change of direction in the airflow within the air duct 5. A reversal of direction of approximately 160° occurs between the first air duct section 51 and the second air duct section 52. The odor filter 7 is positioned at the midpoint of this reversal.

[0039] The Fig. 2The diagram shows how to remove the odor filter 7 through the air inlet opening 4. Removing the odor filter 7 is possible because the grease filter 6 has already been removed through the air inlet opening 4. After removing the grease filter 6, the odor filter 7 can be removed immediately. No other components need to be removed.

[0040] The odor filter 7 has a fixed shape, meaning it cannot be folded or rolled up, for example. It can be easily removed through the narrow air inlet opening 4 due to the bend 73. The user grasps the odor filter 7 by the handle 76 and pulls it out through the air inlet opening 4.

[0041] While preferred embodiments of the invention are described in the present application, it should be clearly pointed out that the invention is not limited to these and can also be carried out in other ways within the scope of the following claims.

Claims

1. Cooking hob with an extractor device and a hob surface (1) for placing pots (2) and pans, the extractor device comprising - an air inlet opening (4), which is arranged in a recess in the hob surface (1), - a fan (8) for drawing in air through the air inlet opening (4), - a grease filter (6), wherein an odour filter (7) is arranged downstream of the grease filter (6), wherein the odour filter (7) has a first air inlet surface (71) and a second air inlet surface (72), which are arranged at an angle greater than 2°, in particular greater than 5°, in particular greater than 10°, relative to one another, characterised in that the grease filter (6) and the odour filter (7) can be removed through the air inlet opening (4) for cleaning, whereby not two parts of the odour filter are connected to each other by a coupling magnet.

2. Cooking hob according to claim 1, wherein the first air inlet surface (71) and the second air inlet surface (72) are flat surfaces.

3. Cooking hob according to one of the preceding claims, wherein the odour filter (7) has precisely the aforementioned two air inlet surfaces (71, 72).

4. Cooking hob according to one of the preceding claims, wherein the odour filter (7) has a first air outlet surface (74) and a second air outlet surface (75), wherein the first air outlet surface (74) is arranged parallel to the first air inlet surface (71) and the second air outlet surface (75) is arranged parallel to the second air inlet surface (72).

5. Cooking hob according to one of the preceding claims, wherein the first air inlet surface (71) and / or the second air inlet surface (72) are arranged at an angle of at most 45°, in particular at most 30°, in particular at most 15°, to the hob surface (1), in particular wherein the first air inlet surface (71) and / or the second air inlet surface (72) are arranged horizontally.

6. Cooking hob according to one of the preceding claims, wherein a part, in particular more than half, of the entire air outlet surface (61) of the grease filter (6), in particular the entire air outlet surface (61) of the grease filter (6), is arranged at an angle of at most 45°, in particular at most 30°, in particular at most 15°, to a vertical (11) to the hob surface (1).

7. Cooking hob according to one of the preceding claims, wherein a part, in particular more than half of the entire air outlet surface (61), in particular the entire air outlet surface (61), of the grease filter (6) is arranged at an angle of at least 45°, in particular at least 60°, to the first air inlet surface (71) and / or to the second air inlet surface (72) of the odour filter.

8. Cooking hob according to one of the preceding claims, wherein the odour filter (7) and the fan (8) are arranged on opposite sides to the grease filter (6).

9. Cooking hob according to one of the preceding claims, wherein the odour filter (7) is arranged laterally to the grease filter (6) and / or between the grease filter (6) and the edge (3) of the hob.

10. Cooking hob according to one of the preceding claims, wherein the air between odour filter (7) and fan (8) flows horizontally below the grease filter (6).

11. Cooking hob according to one of the preceding claims, wherein the odour filter (7) is arranged in an air duct section (5) which is designed in such a way that the air in it undergoes a reversal of flow direction.

12. Cooking hob according to one of the preceding claims, wherein the odour filter (7) - is an activated carbon filter, and / or - has a fixed shape, and / or - has a handle (76).

13. Cooking hob according to one of the preceding claims, wherein the grease filter (6) and the odour filter (7) are arranged and designed in such a way that - the odour filter (7) can only be removed through the air inlet opening (4) if the grease filter (6) has already been removed through the air inlet opening (4), and - the odour filter (7) can be removed immediately after removal of the grease filter (6).

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