Cooking hob with extractor hood and scale

Abstract

The invention relates to a cooktop with an extractor fan (4) and a cooktop surface (1) for placing cookware, in particular pots and pans. The extractor fan (4) comprises an air inlet opening (5) arranged in a recess of the cooktop surface (1), a fan (10) for drawing air through the air inlet opening (5), an air duct (7) leading from the air inlet opening (5) to the fan (10), and a grease filter (8). The extractor fan (4) has a scale with a measuring cell for measuring the weight of objects positioned above the air inlet opening (5).

Description

Field of invention

[0001] The invention relates to a cooktop with an integrated extractor fan and a cooktop surface for placing cookware, in particular pots and pans. The extractor fan comprises an air inlet opening arranged in a recess of the cooktop surface. A fan draws air through the air inlet opening and then through an air duct leading to the fan. The extractor fan also includes 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. Description of the invention

[0005] The task is to provide a cooktop with a user-friendly scale.

[0006] This problem is solved by the subject matter of the independent claim.

[0007] Accordingly, a cooktop comprises a cooking surface for placing cookware, in particular pots and pans, and a ventilation system. The ventilation system includes an air inlet opening which is arranged in a recess of the hob surface, in particular wherein the air inlet opening is arranged centrally in the hob, a fan for drawing in air through the air inlet opening, in particular wherein the fan is arranged below the hob, an air duct leading from the air inlet opening to the fan, a grease filter, in particular wherein the grease filter is arranged downstream of the air inlet opening in the air duct.

[0008] In addition, the extractor fan includes a scale with a measuring cell to measure the weight of objects positioned above the air inlet opening.

[0009] Integrating a scale into the extractor hood has the advantage that items on the cooktop can be weighed while the individual cooking zones are occupied with cookware. This is because the area covered by the extractor hood remains free of other objects during cooking.

[0010] Advantageously, the extractor hood includes a removable cassette through the air inlet opening. The cassette contains a grease filter. This allows the grease filter to be conveniently removed from the cooktop and cleaned as an integral part of the cassette. In particular, the air inlet opening has an elongated shape, with a length and a width, the length being at least twice, and in particular at least three times, and in particular at least four times, the width.

[0011] Advantageously, the cassette includes a carrying device by means of which the cassette can be grasped and pulled out through the air inlet opening. A cover arranged on the top of the carrying device, in particular a cover grille, is to be considered part of the carrying device, even if the cover can be removed from the carrying device without lifting the cassette out of the air inlet opening. In particular, such a cover is only supported by the remainder of the carrying device.

[0012] In particular, the support device is located at the top of the cassette when it is inserted. This allows the user to remove the grease filter from the extractor hood with exceptional ease. The support device also serves to protect against falling debris and is relevant for directing the airflow. Specifically, the support device has a longitudinal shape with a length and a width, the length being at least twice, in particular at least three times, and in particular at least four times, the width.

[0013] In particular, the upper part of the support device is positioned above the cooktop surface. When weighing using the support device, this has the advantage that the objects placed on it for weighing rest only on the support device and not on adjacent areas of the cooktop. This allows for an accurate measurement of the weight of the objects being weighed.

[0014] Advantageously, the cassette can be positioned in two positions within the cooktop. In the first position, the top of the support device is positioned above the cooktop surface, allowing items to be weighed on it. In the second position, the top of the support device is level with or below the cooktop surface. The second position prevents the support device from interfering when cookware is moved around the cooktop. The cassette is thus designed as a retractable cassette. Preferably, the cassette is always retracted in the second position and is only raised to the first position when the user wishes to weigh an item.

[0015] In particular, the top of the support device has a chamfer or bevel at the edge, so that pots moved flat on the hob surface are not stopped hard by the support device.

[0016] In a particular embodiment, a cover, in particular a glass cover, is arranged on the upper side of the support device. A continuous air gap is formed along the entire circumference of the upper side between the support device and the cooktop, in particular where the air gap forms the air inlet opening, in particular the entire air inlet opening. In particular, the cover is supported only from below. Such a design of the support device has the advantage that the cassette can be gripped particularly easily and pulled out of the air inlet opening.

[0017] Advantageously, the cover includes a display device for showing the weight measured by the measuring cell. This has the advantage that the measured value can be displayed in a central, easily visible location on the cooktop.

[0018] In a particular embodiment, the measuring cell is arranged within the support device in such a way that the weight of the cookware supported on the support device can be measured. The arrangement of the measuring cell within the support device has the advantage that removing the cassette also removes the measuring cell and thus the entire scale from the cooktop. This ensures that contact between the scale surface on the support device and the measuring cell is always maintained and does not cause any problems when mounting and dismounting the cassette.

[0019] In an alternative embodiment, the cassette includes a suspension device. The cassette is suspended from the cooktop and below the cooktop surface by means of this suspension device. The suspension device is arranged around the air duct, and the measuring cell is attached to the suspension device and is part of the removable cassette. In particular, the suspension device is designed as a frame. Positioning the measuring cell on the suspension device has the advantage that all gravitational force acting on the cassette is measured. In particular, the weight of the contents of the cassette can also be measured, and the user can be informed that the cassette should be emptied. The design in which the measuring cell is part of the removable cassette has the advantage that no problems arise during the installation and removal of the cassette.

[0020] If the measuring cell is part of the removable cassette, the measuring cell can be operated by means of a battery or a rechargeable battery, or the current can be transferred from the hob to the measuring cell by means of inductive energy transfer.

[0021] In another alternative embodiment, the measuring cell is attached to the cooktop and is not removable with the cassette. The cassette is suspended from the cooktop and below its surface, pressing down on the measuring cell. Attaching the measuring cell to the cooktop, rather than integrating it into the cassette, offers the advantage of easy power supply. Short Description of the drawings

[0022] 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. 1a cooktop with a range hood arranged in the cooktop, viewed from above; Fig. 2 a first cross-section through the hob, clearly showing the construction of the extractor hood; Fig. 3 a second cut through the cooktop; Fig. 4 a first embodiment with a measuring cell arranged in a support device of the extractor hood, wherein a detailed view of the section from Fig. 2 shown; Fig. 5 a second embodiment with a measuring cell arranged within a suspension device, shown in the same detailed view as in Fig. 4 ; Fig. 6 a third embodiment with a measuring cell arranged on the hob, shown in the same detailed view as in Figs. 4 and 5 ; and Fig. 7 shows the sectional view of Fig. 2 , wherein a cooking pot is arranged on the extractor hood for weighing. Ways to implement the invention

[0023] The Fig. 1Figure 1 shows a cooktop with a cooking surface 1. Induction cooking zones 2 are arranged to the left and right, on which pots and pans can be placed for cooking. The cooking zones 2 are indicated by markings 3. A range hood 4 with an air inlet 5 is located centrally between the cooking zones 2. Cooking steam escaping from the pots and pans is extracted downwards through the air inlet 5. An input and output device 6 is located in front of the air inlet 5, which allows the user to control the cooktop and display information to the user.

[0024] Fig. 2 shows a first section through the cooktop with the extractor hood 4 arranged below the cooktop. The section line is in Fig. 1 The terms up, down, left, right are shown as in Fig. 2To be understood, as already mentioned, the air inlet opening 5 is located in the center of the cooktop surface 1, formed by a recess in the cooktop surface 1.

[0025] The air inlet opening 5 forms the inlet to the extractor hood 4, which is located below the cooktop surface 1. The extractor hood 4 further comprises an air duct 7, a grease filter 8, an odor filter 9, and a fan 10. The fan 10 draws in air through the air inlet opening 5, which then flows through the air duct 7. The arrows indicate the airflow through the air duct 7. After entering through the air inlet opening 5, the air flows through the grease filter 8. Next, the air flows through the odor filter 9, which is located downstream of the grease filter 8. The air then flows horizontally below the grease filter 8 to the fan 10. After passing the fan 10, the air exits the extractor hood 4.

[0026] The grease filters 8 are part of a cassette 11 that can be removed from the extractor hood 4 through the air inlet opening 5. The cassette 11 also includes a carrying handle 12 and a suspension device 13. To clean the grease filters 8, the user grasps the carrying handle 12 and pulls the entire cassette 11 out of the extractor hood 4. When the cassette 11 is inserted into the extractor hood 4, it is supported by the suspension device 13 against the cooktop. The suspension device 13 extends around the entire circumference of the air inlet opening 5 and is thus designed as a frame.

[0027] Fig. 3 shows a second sectional view of the cooktop according to Fig. 1 The corresponding cutting line is in Fig. 1The diagram shows the elongated shape and vertical orientation of the support 12. In this sectional view, the elongated shape and vertical orientation of the support are clearly visible. When the support 12 is inserted in the cooktop, i.e., in the extractor hood 4, the upper surface 14 of the support 12 lies slightly above the cooktop surface 1. This ensures that cookware placed on the support 12, the weight of which is to be measured, rests exclusively on the support 12. Fig. 7 shows a weighing situation in which a cooking pot is placed on the support 12 and is weighed.

[0028] The support 12 rests on the cooktop via a suspension device 13. The support and the suspension device 13 are located below the cooktop surface 1. This means that the upper surface 14 of the support 12 is completely surrounded by the air gap 16 of the air inlet opening 5 and does not abut the edge of the air inlet opening 5 at any point.

[0029] Double arrow 20 illustrates that the cassette 11 can be moved back and forth in a vertical direction. Fig. 3 Figure 1 shows a first position of the cassette, in which the upper surface 14 of the support device 12 is positioned above the cooktop surface 1. In this position, cookware can be placed on the support device 12 and weighed. From this first position, the cassette 11 can be moved to a second position, so that the upper surface 14 of the support device 12 is at the same height as the cooktop surface 1. In this second position, no weighing takes place, and the support device 12 is positioned so that it does not interfere when cookware is moved on the cooktop surface 1.

[0030] The support device 12 has a cover 15 on its upper surface 14. The cover 15 is designed as a glass cover and is intended to have the same appearance as the cooktop surface 1.

[0031] Fig. 4Figure 1 shows a first embodiment of a fume hood device 4 with a measuring cell 17 for weighing objects on the carrying device 12. The measuring cell 17 is arranged in the carrying device 12 and is supplied by a battery 18 arranged in the carrying device 12.

[0032] Fig. 5 Figure 1 shows a second embodiment of a range hood 4 with a measuring cell for weighing objects on the support device 12. Two measuring cells 17 are arranged in the suspension device 13 within the cassette 11. When the cassette 11 is pulled out of the air inlet opening 5, the measuring cells 17 move with it because they are part of the cassette 11. Batteries 18 are arranged in the suspension device 13 next to the measuring cells 17, which supply the measuring cells 17 with power. Alternatively, the measuring cell 17 could be powered by inductive energy transfer from the cooktop's power source.

[0033] Fig. 6 Figure 1 shows a third embodiment of a range hood 4 with measuring cells for weighing objects on the support device 12. The measuring cells 17 are arranged on the side of the cooktop and are not part of the cassette 11. When the cassette 11 is pulled out of the air inlet opening 5, the measuring cells 17 remain in the cooktop. The measuring cells 17 are powered by the cooktop's power source.

[0034] The weight values ​​measured by the measuring cells 17 can be displayed in the output device 6. Alternatively or additionally, a second output device 19, designed as a display, is arranged on the top 14 of the carrying device 12, on which the measured weight can be displayed.

[0035] 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. Cooktop with a ventilation device (4) and a cooktop surface (1) for placing cookware, in particular pots and pans, wherein the ventilation device (4) comprises: - an air inlet opening (5) arranged in a recess of the cooktop surface (1), - a fan (10) for drawing air through the air inlet opening (5), - an air duct (7) leading from the air inlet opening (5) to the fan (10), - a grease filter (8), characterized by the fact that the extractor fan (4) has a scale with a measuring cell (17) to measure the weight of objects positioned above the air inlet opening (5).

2. Hob according to claim 1, wherein the extractor fan (4) has a cassette (11) with a grease filter (8) that can be removed through the air inlet opening (5), in particular wherein the air inlet opening (5) has a longitudinal shape, with a length and a width, wherein the length is at least twice, in particular at least three times, in particular at least four times as long as the width.

3. Cooktop according to claim 2, wherein the cassette (11) comprises a carrying device (12) with a top (14) by means of which the cassette (11) can be gripped and pulled out through the air inlet opening (5), in particular wherein the carrying device (12) has a longitudinal shape, with a length and a width, wherein the length is at least twice, in particular at least three times, in particular at least four times as long as the width.

4. Hob according to claim 3, wherein the upper side (14) of the support device (12) is arranged above the hob surface (1).

5. Cooking surface according to claim 4, wherein the top (14) of the support device (12) has a chamfer or bevel at the edge.

6. Hob according to claim 4 or 5, wherein the cassette (11) can be arranged in a first position and in a second position in the hob, wherein - in the first position the top (14) of the support device (12) is arranged above the hob surface (1), and - in the second position the top (14) of the support device (12) is arranged at the same height or below the hob surface (1).

7. Hob according to one of claims 3 to 6, wherein an air gap is formed along the entire circumference of the top (14) of the support device (12) between the top (14) and the hob, in particular wherein - a cover (15), in particular a glass cover, is arranged on the top (14) of the support device (12), and / or - the cover (15) is only supported downwards, and / or - the air gap forms the entire air inlet opening (5).

8. Hob according to claim 7, wherein the cover (15) has a display device (19) for displaying the weight measured with the measuring cell (17).

9. Hob according to one of the preceding claims, wherein the hob top has an input and output device (6) for displaying the weight measured with the measuring cell (17).

10. Hob according to one of claims 3 to 9, wherein the measuring cell (17) is arranged within the support device (12), in particular such that the weight of the cookware supported on the support device (12) can be measured.

11. Cooktop according to one of claims 2 to 9, wherein the cassette (11) has a suspension device (13), wherein - the cassette (11) is suspended on the cooktop and below the cooktop surface (1) by means of the suspension device (13), and - the suspension device (13) is arranged around the air inlet opening (5), and - the measuring cell (17) is arranged on the suspension device (13) and is part of the removable cassette (11), in particular wherein the suspension device (13) is designed as a frame.

12. Hob according to one of claims 2 to 8, wherein the measuring cell (17) is arranged on the hob and is not removable with the cassette (11), wherein the cassette (11) is suspended on the hob and below the hob surface (1) and presses on the measuring cell (17).

13. Hob according to one of claims 2 to 8, wherein the measuring cell (17) is part of the removable cassette (11), and is operated by means of a battery (18) or by means of a rechargeable battery, or wherein current is supplied from the hob to the measuring cell (17) by means of inductive energy transfer.

Images