WO2021244847A1

WO2021244847A1 - Vapor extraction device and cooktop system

Info

Publication number: WO2021244847A1
Application number: PCT/EP2021/063152
Authority: WO
Inventors: Milan NOVKOVIC; Christoph Moser; Beat Ernst
Original assignee: Wesco Ag
Priority date: 2020-06-05
Filing date: 2021-05-18
Publication date: 2021-12-09
Also published as: DE202020103242U1; EP4162208A1

Abstract

The invention relates to a vapor extraction device (1) for extracting cooking vapors produced on a cooktop (101) in a downward direction (201) by means of an air flow (200), the vapor extraction device comprising: - a housing (2), which housing (2) is to be disposed below a cooktop plane (202) defined by the cooktop (101); - at least one fan (3, 3a) for producing the air flow (200), which at least one fan is disposed in the housing (2); - at least one inlet opening (4) for receiving the air flow (200) loaded with cooking vapors; - at least one separating element (5) for cleaning the air flow (200) by removing constituents of the cooking vapors from the air flow, which at least one separating element is disposed in the housing (2); and - at least one outlet opening (6) for discharging the cleaned air flow (200) from the housing (2); wherein the inlet opening (4) is provided in a side part (7, 7a) of the housing (2), which side part is to be positioned to the side of the cooktop (101).

Description

Dunstabzuasvorrichtuna and Kochfeldsvstem The invention relates to an extractor device for extracting cooking fumes generated on a hob by means of an air flow in a downward direction, with a housing, the housing being arranged below a hob level defined by the hob, at least one fan arranged in the housing for generating the air flow, at least one inlet opening for receiving the air flow laden with cooking vapors, at least one arranged in the housing

Separation element for cleaning the air flow from constituents of cooking vapors, and at least one outlet opening for discharging the cleaned air flow from the housing. In addition, the invention relates to a hob system with such an extractor device and with at least one hob for heating items to be cooked.

Such an extractor device is available, for example, from homeier küchentechnik GmbH under the name “DOWNAIR MISTRAL PLUS”. Another such cooktop system is offered by homeier küchentechnik GmbH under the name "DOWNAIR MISTRAL ALL IN ONE". The disadvantage of the solutions available up to now is that the frames used with the inlet openings of the extractor devices must be adapted to the external dimensions of the hobs used so that they can be combined to form cooking systems, so that a large number of suitable frames are required for combining with the various hobs. In addition, due to the frames used, the cooktops could not be so easily flush with the countertops of the end customer's kitchens be let in, as the frames usually build up either laterally or upwards.

It is therefore the object of the invention to provide an improved extractor device which enables a simple combination with cooktops of different external dimensions and at the same time allows simple flush installation in kitchen worktops. In addition, an improved hob system is to be specified.

This object is achieved by an extractor device with the features of claim 1 and by a hob system with the features of claim 9.

The fact that according to the invention the inlet opening is arranged in a side part of the housing to be arranged on the side of the hob enables a simple combination with hobs of different external dimensions, namely with a simple flush installation in the respective worktop. With the side part of the housing to be arranged to the side of the hob, the inlet opening of the extractor device can be simply arranged flush on the side of the hob, regardless of the external dimensions of the hob used. The lateral arrangement of the side part on the hob makes a combination possible regardless of the external dimensions of the hob, since no additional frame is required for the lateral arrangement of the side part on the hob to accommodate and enclose the hob. For this reason, it is easy for the end customer to let the hob flush with the kitchen worktop. With the flush arrangement of the side part of the extractor device housing, a frameless integration with a hob in the worktop at the end customer's can easily be implemented, which enables flexible positioning of the inlet opening on the hob and the use of identical parts for different hobs, even if the external dimensions of the fields are different from each other differ. Advantageous refinements and developments of the invention emerge from the dependent claims. It should be noted that the Features listed individually in the claims can be combined with one another in any desired and technologically sensible manner and thus show further embodiments of the invention.

According to an advantageous embodiment of the invention, it is provided that the inlet opening has a pivotable closure flap for closing the inlet opening in a closed pivot position and for opening the inlet opening in an opening pivot position, wherein with the closure flap a suction grille covering the inlet opening in the opening pivot position can be pivoted in front of the inlet opening, which is arranged in the closed pivot position under the closure flap. With the use of a suction grille that can be pivoted with the closure flap, it can be prevented that larger objects get into the inlet opening when the closure flap is open in the opening pivoted position. At the same time, the closing flap can cover the inlet opening in a very flat structure, since in the closed pivoted position the suction grille is held in position under the inlet opening closed by the closing flap. When the closing flap is opened, the inlet opening is released so that the suction grille can be pivoted in front of the inlet opening in order to cover it in the opening pivoted position. In this case, the suction grille swivels in the opening swivel position into an area in which the closing flap for closing the inlet opening is located in the closing swivel position. This allows the intake grille in the

Opening pivot position are brought close to the inlet opening, which is covered flush with the closure flap in the closure pivot position.

An embodiment is particularly preferred which provides that the suction grille is firmly connected to the pivotable closure flap. By attaching the suction grille to the closure flap, the suction grille can be swiveled at the same time in a particularly simple manner when the closure flap is pivoted. Swiveling the closing flap between the closing swiveling position and the opening swiveling position thus leads to quick and easy positioning of the suction grille at the inlet opening.

A particularly advantageous embodiment of the invention relates to the fact that the closure flap is provided with a decorative plate which, in the closed pivot position, is flush with the hob level. With the arrangement of a decorative plate, the closure plate can be covered flush with the hob level in the closed pivot position. The use of a suction grille that can be pivoted together with the closure flap simplifies the flush arrangement of the decorative plate in the closed pivoted position of the closure plate, since the decorative plate in the closed pivoted position can be arranged in an area at the inlet opening in which the suction grille covering the suction aperture is located in the open pivoted position.

A particularly advantageous embodiment of the invention provides that the side part comprises a separation element arranged downstream of the inlet opening. The direct arrangement of the separating element in the side part of the housing makes it easier to position the side part on the hob, since downstream of the separating element only a purified air flow has to be guided via the fan to the outlet opening of the housing, so that the separating element does not contaminate downstream housing parts with cooking fumes .

An embodiment is particularly advantageous in which at least two side parts of the housing to be arranged opposite one another on the side of the hob are provided, each side part having at least one inlet opening, the side parts being connected via at least one channel part of the housing that can be adapted to the lateral external dimensions of the hob. With the arrangement of two opposite side parts, the cooking vapors can be drawn off from both sides to the inlet openings. The duct part of the housing, which can be adapted to the lateral external dimensions of the hob, makes it possible to arrange the side parts on hobs of different dimensions. For this purpose, the side parts are made to match via the adjustable channel to the size of the hob used between the two outer sides on which the side parts are arranged on the hob, connected.

According to a preferred embodiment of the invention it is provided that the duct part is formed from at least one air duct which can be cut to the external dimensions of the hob. By cutting the air duct, the duct part can be adapted particularly easily to the external dimensions of the hob used by the end customer. This enables a particularly simple combination of the extractor device with the hob desired by the end customer. In addition, identical parts can advantageously be used for the channel part despite the different external dimensions of the hobs used.

An embodiment is particularly preferred which provides that air guide elements are arranged upstream in front of the separation element. By means of these air guide elements, the air flow is optimally distributed over the surface of the planar separation element, so that the surface of the separation element for separating the cooking vapors is flowed over a large area by the air flow. The air guide elements are advantageously formed from perforated sheet metal. As a result, the air guide elements in front of the separation element serve to distribute the air flow in front of the separation element and at the same time for the pre-separation of constituents of the cooking vapors in front of the separation element.

Furthermore, the subject matter of the invention is a hob system as described in more detail above and below with at least one extractor device as described in more detail above and below, and at least one hob for heating items to be cooked. A particularly advantageous embodiment of the hob system provides that the at least one side part is provided with a decorative panel, which has a length tailored to the depth of the hob. Over the length matched to the depth of the hob, decorative panels of the side parts that are flush with the depth of the hob can be arranged on the side. With the simultaneous use of a channel part that can be adapted to the width of the hob between two laterally arranged side parts The same decorative panels can be arranged on the broad side of the hob to match the depth of the hob, even if the front of the hob required by the end customer varies, as this variation can be compensated for by the adjustable channel part between the side parts. An embodiment of the hob system is therefore particularly advantageous which provides that a channel part connects two side parts arranged to the side of the hob below the hob level. With this channel part, a variation in the width of the hob desired by end customers can be easily compensated, since the side parts arranged on the broad side of the hob can simply be connected to fit below the hob level.

Further features, details and advantages of the invention emerge on the basis of the following description and on the basis of the drawings which show an exemplary embodiment of the invention. Objects or elements that correspond to one another are provided with the same reference symbols in all figures. Show it:

Figure 1 extractor device according to the invention,

Figure 2 hob system according to the invention,

Figure 3 sectional view through the extractor device and the

Hob,

Figure 4 detailed view of the side part with the inlet opening closed,

Figure 5 detailed view of the side part with the inlet opening open,

FIG. 6 shows a sectional view through the side part with the inlet opening closed, and FIG. 7 shows a sectional view through the side part with the inlet opening open. An extractor device according to the invention is shown in FIG. 1 with the reference numeral 1. The extractor device 1 has a housing 2 which, as shown in the exemplary embodiment, can be constructed in several parts. The housing 2 of the extractor device 1 can be arranged under a hob 101, as can be seen in FIGS. 2 and 3.

A hob system according to the invention is shown in FIG. 2 with the reference numeral 100. The hob system 100 comprises an extractor device 1 according to FIG. 1 and a hob 101 for heating items to be cooked. In the exemplary embodiment, the hob 101 is designed as a glass ceramic hob, which can be an induction hob. On the hob 1, food can be heated in pots or pans. Cooking vapors that are formed in the process are drawn off via the extractor device 1 arranged below the hob 101 by means of an air stream 200 (FIG. 7) in a downward direction (also referred to as “downdraft”). The hob 101 defines a hob plane 202 shown in FIGS. 6 and 7, which can be an imaginary extension of the glass plate surface of the glass ceramic hob 101. As can be seen in FIGS. 2 and 3, the housing 2 of the extractor device 1 is to be arranged below this hob level 202. The housing 2 encloses at least one fan 3, 3a which is used to generate the air flow 200 (FIG. 7). In the exemplary embodiment shown, a total of two fans 3, 3a are arranged in the housing 2 for this purpose. In the side parts 7, 7a of the housing 2 arranged to the side of the hob 101, there is in each case an inlet opening 4 for receiving the air stream 200 loaded with cooking vapors (FIG. 7). As can be seen in the sectional view according to FIG. 3, there is one in each case

Separation element 5 for cleaning the air flow 200 (FIG. 7) from the constituents of the cooking vapors is arranged downstream of the inlet openings 4 in the side parts 7, 7a. In the housing 2, two outlet openings 6 are also provided for the outlet of the cleaned air stream from the housing 2.

The two side parts 7, 7a of the housing 2 arranged opposite one another on the side of the hob 101 are connected via a channel part 11 of the housing 2 connected to one another below the hob level 202 (Fig. 6 and 7). The duct part 11 can be adapted to the lateral external dimension a of the hob 101, preferably in that the duct part 11 is formed from at least one air duct 12, 12a that can be cut to the external dimension a of the hob 101. In the exemplary embodiment shown, the duct part 11 of the housing 2 is formed by two cut-to-size air ducts 12, 12a, which connect the two side parts 7, 7a of the housing 2 arranged opposite one another on the side of the hob 101. The duct part 11 thus forms two flow paths from the side parts 7, 7a to the fans 3, 3a that are separate from one another in terms of ventilation. As a result of this ventilation separation under the central axis of the hob, only one half of the extractor device 1 can also be used for a one-sided extraction of cooking vapors generated on a hob 101 in the case of small hobs.

FIGS. 4 and 5 show detailed views of one of the side parts 7a according to the previous figures. In these views it can be seen that the inlet opening 4 is a pivotable closure flap 8 for closing the inlet opening 4 in a closed pivoting position shown in FIG has in an opening pivot position shown in Figure 5. In FIG. 5 it can also be seen that the inlet opening 4 is covered by an intake grille 9 in order to prevent large parts of the hob 101 from getting into the inlet openings 4. The suction grille 9 is formed by flat struts which extend along the width of the hob 101.

FIGS. 6 and 7 represent sectional views through the side part 7a shown in FIGS. 4 and 5. In these views it can be seen that the inlet opening 4 is closed by the pivotable closure flap 8 in the closure pivoted position shown in FIG the opening pivot position shown in Figure 7 is released. In FIG. 7 it can also be seen that the inlet opening 4 is covered by the intake grille 9. In contrast, it can be seen in FIG. 6 that the intake grille 9 covering the inlet opening 4 in the opening pivoting position is arranged under the locking flap 8 in the locking pivoting position shown here. That the inlet opening 4 in the opening pivoting position covering As can be seen from FIG. 7, the intake grille 9 is pivoted in front of the inlet opening 4 when the closure flap 8 is opened. For this purpose, the suction grille 9 is advantageously firmly connected to the pivotable closure flap 8. The grid lamellas of the intake grille 9 shown have a flow-optimized shape so that the air optimally reaches the separation element

5 can be directed. The suction grille 9 swivels in the opening swivel position shown in FIG. 7 into an area in which is shown in FIG

6 the closing pivot position shown is the closing flap 8 for closing the inlet opening 4. In this way, in the pivoted opening position, the suction grille 9 can be brought close to the inlet opening 4, which is covered flush by the flap 8 in the pivoted closed position. In particular, in FIGS. 6 and 7 it can be seen that the closing flap 8 is provided with a decorative plate 10 which, in the closing pivoted position shown in FIG. 6, is flush with the hob level 202 defined by the hob 101 (FIG. 2). As a result, the decorative plate 10 can form a common plane 202 with the hob 101 in the closed pivot position, which forms a particularly attractive design, as can be seen in FIG. In order to complete this optically particularly attractive design, the side parts 7, 7a are each provided with a decorative panel 13, which has a length l matched to the depth t of the hob 101. With the simultaneous use of the duct part 11, which can be adapted to the width of the hob 101, between the two laterally arranged side parts 7, 7a, the same decorative panels 13 can advantageously be arranged on the broad side 203 of the hob 101 coordinated to the same depth of the hob 101, even if the front side 204 of the hobs 101 desired by the end customer varies, since this variation can be compensated for by the adaptable channel part 11 between the side parts 7, 7a. By means of the selection of different decorative panels 13, however, a variation in the depth t of the hobs 101 used can be easily compensated for by using decorative panels 13 of different lengths I. A control panel 14 (FIG. 1) is embedded in at least one decorative panel 13, via which the fans 3, 3a and the motorized actuation for pivoting the closing flaps 8 can be actuated. In FIGS. 6 and 7, air guide elements 15 can also be seen, which are arranged upstream of the separation element 5 in front of it. Via these air guide elements 15 the air flow 200 is optimally distributed over the surface of the planar separation element 5, so that the surface of the separation element 5 is optimally flown against by the air flow 200. The air guide elements 15 are advantageously formed from perforated sheet metal. In this way, the air guiding elements 15 in front of the separating element 5 serve to distribute the air flow 200 in front of the separating element 5 and for the preliminary separation of constituents of the cooking fumes in front of the separating element 5 can be removed with the suction grille 9 from the inlet opening 4 in order to simply lift the separating element 5 out of the housing 2 of the extractor device 1 for cleaning.

- List of reference symbols -

Reference list

1 extractor hood

2 housings

3 fans, 3a further fan 4 inlet opening

5 separation element

6 outlet opening

7 side part (left), 7a side part (right)

8 closing flap 9 suction grille

10 decorative plate

11 duct part

12 air duct, 12a another air duct

13 Decorative panel 14 Control panel

15 air control elements 100 hob system

101 hob

200 airflow

201 vertical direction 202 hob level

203 Broad side of the hob

204 Front of the hob a Outer dimensions of the hob t Depth of the hob I Length of the decorative panel

- patent claims -

Claims

1. Fume extractor device (1) for extracting cooking vapors generated on a hob (101) by means of an air stream (200) in a downward direction (201), with - a housing (2), the housing (2) below a through the hob (101) is to be arranged in a defined hob level (202), at least one fan (3, 3a) arranged in the housing (2) for generating the air flow (200), at least one inlet opening (4) for receiving the air flow laden with cooking vapors ( 200), at least one separating element (5) arranged in the housing (2) for cleaning the air flow (200) from constituents of the cooking fumes, at least one outlet opening (6) for discharging the cleaned air flow (200) from the housing (2), thereby characterized in that the inlet opening (4) is arranged in a side part (7, 7a) of the housing (2) to be arranged to the side of the hob (101).

2. Fume extractor (1) according to claim 1, characterized in that the inlet opening (4) is pivotable

Closure flap (8) for closing the inlet opening (4) in a closed pivoted position and for opening the inlet opening (4) in an open pivoted position, with a suction grille (9) covering the inlet opening (4) in the opening pivoted position in front of the Inlet opening (4) is pivotable, which is in the

Closing pivot position is arranged under the closing flap (8).

3. Extractor device (1) according to claim 2, characterized in that the suction grille (9) is firmly connected to the pivotable closure flap (8).

4. Fume extractor device (1) according to claim 2 or 3, characterized in that the closure flap (8) is provided with a decorative plate (10) which is flush with the hob level (202) in the closed pivot position.

5. Extractor device (1) according to one of the preceding

Claims, characterized in that the side part (7, 7a) comprises a separation element (5) arranged downstream of the inlet opening (4).

6. Extractor device (1) according to one of the preceding

Claims, characterized in that at least two side parts (7, 7a) of the housing (2) to be arranged opposite one another to the side of the hob (101) are provided, each side part (7, 7a) having at least one inlet opening (4), the side parts ( 7, 7a) are connected via at least one duct part (11) of the housing (2) which can be adapted to the lateral external dimension (a) of the hob (101).

7. Fume extractor (1) according to claim 6, characterized in that the channel part (11) consists of at least one on the

Outer dimension (a) of the hob (101) is formed air duct (12, 12a) which can be cut to size.

8. Extractor device (1) according to one of the preceding claims, characterized in that air guide elements (15) are arranged upstream in front of the separation element (5).

9. hob system (100) with at least one extractor device (1) according to one of the preceding claims, and at least one hob (101) for heating food.

10. Hob system (100) according to claim 9, characterized in that the at least one side part (7, 7a) is provided with a decorative panel (13) which has a length (I) tailored to the depth (t) of the hob (101) has.

11. hob system (100) according to claim 9 or 10, characterized in that a channel part (11) connects two laterally of the hob (101) arranged side parts (7, 7a) below the hob level (202).

- Summary -