Electric table grill
The table grill addresses the issue of lateral air discharge and surface cooling by using a radial fan and dual filters to direct purified air perpendicular to the grill plate, enhancing user comfort and simplifying design and maintenance while reducing costs.
Patent Information
- Application Number
- FR2025000451
- Authority / Receiving Office
- FR · FR
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-01-23
- Filing Date
- 2025-01-16
- Publication Date
- 2025-07-25
AI Technical Summary
Existing table grills with air purification devices direct purified air laterally, causing discomfort to people sitting nearby and can cool the cooking surface with recirculated air, and their structures are complex and costly.
The grill features a suction opening connected to an air purification device with a radial fan and dual filters, directing purified air perpendicular to the grill plate through integrated air channels and outlets, using a double-walled construction to simplify design and reduce costs.
The solution effectively directs purified air away from users and prevents cooling of the cooking surface, while ensuring easy cleaning and replacement of components, and reduces construction complexity and costs.
Smart Images
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Abstract
Description
Title of the invention: Electric table grill
[0001] The invention relates to an electric table grill, comprising a shell-shaped housing with a bottom and wall elements projecting perpendicularly from the bottom, a grill plate as a first preparation plane, which is oriented parallel to the bottom and is supported by the wall elements, an electric heater arranged in the housing below the grill plate, and an air purification device arranged in the housing for filtering polluted air rising from a grill surface of the grill plate when cooking food.
[0002] In the prior art, a table grill with an air purification device is known, for example in WO 2023 / 156304 A1. The table grill has a housing with depositing elements for placing the grill on a table and an electric heater. The housing forms a filter space and at least one suction opening, a filter being arranged in the filter space. A fan of the table grill is arranged such that air is sucked in through the suction opening and then transported into the filter space and out of the filter space through the filter. The purified air is expelled from under the table grill to one side of the table grill. The table grill is therefore not placed directly on the table with a base, but the depositing elements are provided to ensure a sufficient distance from the table top, so that the expelled air can escape from under the grill and to one side.Therefore, the table grill, and in particular the preparation surfaces, have a certain height.
[0003] The disadvantage is that the air blown laterally is directed towards the people sitting at the table around the table grill, which is perceived as a nuisance.
[0004] Also known in the state of the art are solutions for cooking hobs in which the polluted air is sucked under the cooking hob, cleaned and then slid back onto the cooking hob. However, the transposition of such systems to a table grill has the disadvantage that the surface of the grill is cooled by the returned air flow, which is not desirable.
[0005] The aim of the invention is to create a table grill with an air purification device having an improved orientation of the outgoing purified air flow. Furthermore, the structure of the table grill must be simple as well as inexpensive. The individual elements of the device, in particular the air purification filter, must be particularly easy to clean or replace.
[0006] To solve this problem, the invention proposes that the grill has at least one suction opening to which the air purification device is connected, the polluted air being led through the suction opening into the air purification device and purified by it, the housing having at least one air channel, which is connected on the one hand to the air purification device by an opening and on the other hand to at least one air outlet opening openly on the upper side of the table grill, and through which the purified air is transported from the air purification device to the air outlet and is discharged through it into the environment, the discharged air flow being directed perpendicular to the plane of the grill plate.
[0007] The air purification device comprises a fan and at least one filter. The fan and the filter are connected in series and positioned in the housing below a plane in which the suction opening is located, the fan drawing polluted air into the housing through the suction opening and passing it through the filter. The fan is preferably a radial fan. The filter used is preferably a dual filter comprising a woven metal filter and an activated carbon filter, the air first passing through the woven metal filter, which filters out coarse air particles, and then through the activated carbon filter, which filters out fine air particles. The woven metal filter may, for example, be made of stainless steel or aluminum. The filter is preferably removably secured in the housing and can be removed from the housing for cleaning purposes.
[0008] Once the air has been purified by the filter, it is transported to an air outlet through the air channel connected to the air purification device via an opening, which is also carried out by the fan. The air flow then exits the air outlet from the top of the table grill and is directed perpendicular to the grill plate. In this way, the air flow is not directed towards people and is not directed back towards the cooking plate. The perpendicular outlet also comprises small deviations from an orientation exactly perpendicular to the plane of the grill plate. The grill plate is preferably releasably connected to the wall elements, for example laid down or plugged in, so that it can be removed from the table grill at least for cleaning purposes.
[0009] The air outlet may, for example, be arranged in a peripheral area of the grill plate or be an integral part of the housing, preferably wall elements.
[0010] Particularly preferably, it is provided that the bottom and / or the wall elements are made of double-walled construction, at least one air channel being formed by the double walls.
[0011] In this way, the air channel is integrated into the housing, which simplifies the construction of the grill and reduces costs.
[0012] It is preferably provided that the air outlet emerges from the double wall in an open manner, preferably between the ends of the walls facing away from the ground.
[0013] It is further preferably provided that the grill plate has a first collar framing the grill surface and extending outwards, which protrudes vertically from the grill plate.
[0014] Thanks to the first collar, liquids, such as cooking juices, cannot flow from the grill surface on the outside and soil the housing or the table. The collar can preferably be formed in one piece with the grill plate, which has the advantage of avoiding a gap that may be permeable to liquids between the grill surface and the collar.
[0015] To prevent liquid from entering the air outlet and spreading into the room with the blown air, it is then preferable to provide that the air outlet is arranged on one side of the first collar opposite the grill surface.
[0016] Furthermore, it is preferably provided that the collar is arranged at a distance from an outer peripheral edge of the grill plate, so that the grill plate has a peripheral strip on the side of the collar opposite the grill surface, the strip having the air outlet which is connected to the air channel of the housing in the theoretical position of the grill plate.
[0017] Alternatively, it may preferably be provided that the peripheral collar is double-walled and that the air outlet opens between the walls of the collar.
[0018] It is then preferable to provide that the double walls of the first collar constitute a sort of extension of the double-walled wall elements and that the grill plate has between the walls of the collar an opening adapted to the air outlet, so that the air can escape through the air outlet. Thanks to the walls of the double-walled collar, the air flow is further directed perpendicular to the grill plate.
[0019] It is further preferably provided that the first double-walled collar has a cover on its upper side and is closed, a recess being provided in the area of the opening, through which the air flow can escape. The sealing of the upper part of the double-walled collar prevents liquids from seeping between the walls of the collar and flowing towards the air outlet.
[0020] Preferably, it is provided that the grill plate has a second collar framing the suction opening, which protrudes from an edge cutout of the suction opening and is oriented perpendicular to the grill plate and the grill surface.
[0021] In this way, it is prevented that liquids, especially when sucking in air, enter the suction opening.
[0022] It is also preferably provided that the table grill has a second preparation plane for preparing food in pans, which is arranged between the base and the grill plate, the wall elements having window-shaped recesses for inserting the pans into the table grill, the second preparation plane having a first through-hole through which parts of the air purification device can be introduced or are introduced, it is preferably provided that the air purification device is connected to a second suction opening of the second preparation plane.
[0023] Such a second suction opening may be provided to filter air impurities produced during the preparation of food in the second preparation plane. The second suction opening is also connected to the air purification device, which sucks in and purifies the air in the area of the second plane and discharges the purified air to the environment through the existing air channel and the air outlet.
[0024] It is preferable to provide that the table grill has a plane for placing the pans, which is arranged between the bottom and the second preparation plane, the recesses of the wall elements for inserting the pans being widened up to the plane, the plane having a passage hole through which elements of the air purification device pass.
[0025] Preferably, it is provided that the table grill has a parallelepiped shape, each corner area having an air outlet.
[0026] Since the handling of the grill plate, as well as the second preparation plane, is carried out from the sides of the table grill which extend between the corner areas, the arrangement of the air outlets in the corner areas makes it possible to avoid the user having to pass through the outgoing air flow.
[0027] It is preferable that the suction opening is located in the geometric center of the grill plate, so that air is drawn in evenly from the entire surface of the grill.
[0028] Furthermore, it is preferably provided that the suction opening is at least partially covered by a shaped part, an air space remaining between the shaped part and the cutout of the edge of the suction opening or between the shaped part and the second collar.
[0029] In this way, the suction effect can be strengthened and improved. The cover also largely prevents objects, e.g. food, from falling into the suction opening and damaging or clogging the fan and / or the filter.
[0030] It is preferably provided that the shaped part is a funnel.
[0031] It is also preferable to provide that the shaped part is removably attached to the table grill, which allows particularly easy cleaning of the shaped part.
[0032] It is further preferable to provide that the air purification device comprises a filter and / or a fan which is or are removably fixed in the housing.
[0033] Preferably, it may be provided that the filter or fan is accessible from the suction opening. The suction opening then has an opening large enough for the filter and / or fan to be removed from the housing by hand or using a suitable tool. This has the advantage that These parts can be removed from the table grill and cleaned or replaced if they become dirty or damaged. For durability reasons in particular, it is particularly advantageous to replace defective parts of the appliances.
[0034] An exemplary embodiment of the table grill according to the invention is shown in the figure and explained in more detail below.
[0035] It shows:
[0036] [Fig. 1] A table grill with an air purification device in cross section.
[0037] The figure shows an electric table grill 1 of parallelepiped shape,comprising a shell-shaped housing with a base 2 and wall elements 3 projecting vertically from the base 2. A grill plate 4 serving as a preparation foreground is removably attached to the wall elements 3, the grill plate 4 being oriented parallel to the base 2. An electric heater 5 is arranged in the housing below the grill plate 4. In order to filter the polluted air rising from a grill surface 7 of the grill plate 4 during the cooking of food, an air purification device 6 is further provided in the housing. The grill plate has a circular suction opening 8 to which the air purification device 6 is connected, the polluted air being directed through the suction opening 8 into the air purification device 6 and purified by the latter.Air channels 9 are formed in the housing and are connected, on the one hand, to the air purification device 6 via an opening and, on the other hand, to a respective air outlet 10 opening openly on the upper side of the table grill 1, and through which the purified air is transported from the air purification device 6 to the corresponding air outlet 10. A purified air flow 11 emerges from the air outlets 10 perpendicular to the plane of the grill plate 4. In this way, the air flow 11 is not directed towards people and does not slide back onto the grill plate 4.
[0038] The air purification device 6 comprises a radial fan 27 and a double filter 28 comprising a stainless steel fabric filter and an activated carbon filter, the filter 28 being positioned in the housing upstream of the fan 27 in the direction of air circulation in order to purify the air before it passes through the fan 27. To do this, the radial fan 27 draws the polluted air from the grill plate 4 into the housing, the air first passing through the stainless steel fabric filter, which filters out large air particles, and then the activated carbon filter, which filters out fine air particles. Then, the radial fan 27 expels the purified air out of the housing. There is therefore no need for other blowers, fans or other devices to transport the air.
[0039] The bottom 2 and the wall elements 3 are double-walled and form the air channels 9. The housing is preferably multi-part, whereby the wall elements and also the bottom can be made of several parts assembled to form a wall element or the bottom. In this way, the air channels 9 are integrated into the housing, which simplifies the construction of the table grill 1 and reduces costs. The table grill 1 shown has four air channels 9, two of which are shown in cross-section in [Fig.l]. Each air channel 9 is connected on the one hand to the air purification device 6 in the bottom 2 by an opening and on the other hand to an air outlet 10 in a corner area of the table grill. The air outlets 10 open out into the corner areas from the double walls. The arrangement of the air outlets 10 in the corner areas of the table grill 1 allows the user not to have to reach into the air flow 11 that escapes when using the table grill 1. The air outlets 10 have a ribbed structure that covers them so as to allow air to pass through. This structure prevents objects from falling into the air outlet 10.
[0040] The grill plate 4 has a first collar 12 externally surrounding the grill surface 7, which is formed in one piece with the grill plate 4 and which projects vertically from the grill plate 4. The first collar 12 prevents liquids, such as cooking juices, from flowing out of the grill surface 7 and soiling the housing or the table. In order to further prevent such liquids from falling into one of the air outlets 10 and being dispersed into the room with the expelled air, for example, the air outlets 10 are arranged on a side of the first collar 12 opposite the grill surface 7 and thus outside the grill surface 7.
[0041] In addition, the first peripheral collar 12 is double-walled, the air outlets 10 opening between the walls of the first collar 12. The double walls of the first collar 12 thus form a kind of extension of the double-walled wall elements 3 and the grill plate 4 has, in the area between the walls of the collar, openings 13 adapted to the air outlets 10, so that air can escape from the air outlets 10. By means of the walls of the first collar 12, the air flow is further directed perpendicular to the grill plate 4. The first double-walled collar 12 is further closed on its upper side, a recess being provided in the plane of the opening 13. The upper cover 21 prevents liquids from infiltrating between the walls of the first collar 12 and flowing towards an air outlet 10.
[0042] A second collar 14 surrounding the suction opening 8, which protrudes from an edge cutout 22 of the suction opening 8 and is oriented perpendicular to the grill plate 4, prevents liquids from entering the suction opening 8. The second collar 14 is also formed in one piece with the grill plate 4.
[0043] The table grill 1 has a second preparation surface 15 for preparing food in pans, as well as a surface 17 for placing the pans, which are arranged between the base 2 and the grill plate 4. Window-shaped recesses are provided in the wall elements 3, so that the pans can be inserted into the table grill 1 and placed on the second preparation surface 15 and / or the surface 17.
[0044] In order to be able to mount the individual planes and also the components of the air purification device 6, the second preparation plane 15 has a first through-hole 16 and the plane 17 a second through-hole 18, through which parts of the air purification device 6 can be passed or are passed. The grill plate 4 also has the suction opening 8 which forms a through-handle for mounting and / or dismounting components of the table grill 1.
[0045] In order that the air can be sucked in evenly from the entire grill surface 7, the suction opening 8 is arranged in the geometric center of the grill plate 4. The suction opening 8 is partially covered by a shaped part 19 removably attached to the table grill 1 and which is designed as a funnel, a slight air gap 20 remaining between the funnel and the second collar 14, which strengthens and improves the suction effect and also prevents objects from falling into the suction opening 8 and damaging or soiling the fan 27 and / or the filter 28. The removably attaching the funnel allows for particularly easy cleaning. The grill plate 4 can also be removed from the wall elements, for example for cleaning purposes.
[0046] The filter 28 is also removably secured in the housing and can be removed from the housing for cleaning or replacement.
[0047] A grid 23 is placed in the suction opening 8, it is fixed in a tubular section 24 and prevents large objects from falling into the filter 28. The filter 28 is also held in the tubular section 24. The first end 25 of the tubular section 24 is plugged onto elements of the housing. The grill plate 4 is removably plugged onto a second end 26 of the tubular section 24, the end opening of the tubular section 24 being connected to the suction opening 8 in a flush and gap-free manner. To clean or replace the filter 28, the tubular section 24 and the filter 28 can be removed from the housing after the shaped part 19 and the grill plate 4 have been removed from the table grill 1. The filter 28 can then be easily removed from the tubular section 24.
[0048] Alternatively, the filter 28 and the grid 23 may for example be removably fixed in the housing and be accessible from the suction opening 8, the suction opening 8 having to have a diameter large enough to allow in particular the filter 28 to be removed from the housing with one hand.
[0049] In the exemplary embodiment, the fan 27 is not fixed in the tubular section 24, but below the first end 25 of the tubular section 24 on the bottom 2 and can preferably be removed from the housing by opening a bottom hatch. A further grid-shaped cover is preferably provided between the first end 25 of the tubular section 24 and the fan 27, in order to prevent people from inadvertently putting their hands into the fan 27 when replacing the filter. This cover is not shown in the figure.
[0050] The invention is not limited to the exemplary embodiments, but may be the subject of numerous variants within the scope of the disclosure.
[0051] All individual and combined features disclosed in the description and / or drawing are considered essential to the invention.
[0052]
[0053] Of course, the invention is not limited to the embodiment described and shown in the attached drawings. Modifications remain possible, in particular from the point of view of the constitution of the various elements or by substitution of technical equivalents, without departing from the scope of protection of the invention.
Claims
Claims
1. Electric table grill (1), comprising: a shell-shaped housing with a base (2) and wall elements (3) projecting perpendicularly from the base (2), a grill plate (4) as a first preparation plane, which is oriented parallel to the base (2) and is supported by the wall elements (3), an electric heater (5) arranged in the housing below the grill plate (4), and an air purification device (6) arranged in the housing for filtering polluted air rising from a grill surface (7) of the grill plate (4) when cooking food, characterized in that the grill plate (4) has at least one suction opening (8) to which the air purification device (6) is connected, the polluted air being guided through the suction opening (8) into the air purification device (6) and being purified thereby,the housing having at least one air channel (9) which is connected on the one hand to the air purification device (6) by an opening and on the other hand to at least one air outlet (10) opening openly on the upper side of the table grill (1), and through which the purified air is transported from the air purification device (6) to the air outlet (10) and is delivered to the environment through the latter, the delivered air flow (11) being directed perpendicular to the plane of the grill plate (4).,
2. Electric table grill (1) according to claim 1, characterized in that the base (2) and / or the wall elements (3) are made double-walled, at least one air channel (9) being made through the double walls.
3. Table grill (1) according to claim 2, characterized in that the air outlet (10) opens openly from the double wall.
4. Table grill (1) according to claim 1 or 2, characterized in that the grill plate (4) has a first collar (12) surrounding the grill surface (7) and extending outwards, which projects vertically from the grill plate (4).
5. Table grill (1) according to claim 4, characterized in that the air outlet (10) is arranged on a side of the first collar (12) opposite the grill surface (7).
6. Table grill (1) according to claim 4 or 5, characterized in that the first collar (12) is arranged at a distance from an outer peripheral edge of the grill plate (4), so that the grill plate (4) has a peripheral strip on the side of the collar (12) opposite the grill surface (7), the strip having the air outlet (10) which is connected to the air duct (9) of the housing when the grill plate (4) is in the set position.
7. Table grill (1) according to claim 4, characterized in that the peripheral collar (12) is double-walled and the air outlet (10) opens between the walls of the collar (12).
8. Table grill (1) according to claim 4, characterized in that the double walls of the first collar (12) are a kind of extension of the double-walled wall elements (3) and the grill plate (4) has between the walls of the collar an opening (13) adapted to the air outlet (10).
9. Table grill (1) according to claim 5, characterized in that the first double-walled collar (12) has a cover (21) on its upper side and is closed, a recess being provided in the area of the opening (13).
10. Table grill according to one of claims 1 to 9, characterized in that the grill plate (4) has a second collar (14) framing the suction opening (8), which protrudes from an edge cutout of the suction opening (8) and is oriented perpendicular to the grill plate (4) and to the grill surface (7).
11. Table grill according to one of claims 1 to 10, characterized in that the table grill (1) has a second preparation surface (15) for preparing food in pans, which is arranged between the base (2) and the grill plate (4), the wall elements (3) having window-shaped recesses for inserting the pans into the table grill (1), the second preparation surface (15) having a first through-hole (16) through which parts of the air purification device (6) can be passed or have passed.
12. Table grill (1) according to claim 11, characterized in that the air purification device (6) is connected to a second suction opening of the second preparation surface (15).
13. Table grill (1) according to claim 11 or 12, characterized in that the table grill (1) has a plane (17) for placing the pans, which is arranged between the bottom (2) and the second preparation plane (15), the recesses of the wall elements (3) for inserting the pans being widened on the plane (17), the plane (17) having a second passage hole (18) through which parts of the air purification device (6) can be passed or have passed.
14. Table grill according to one of claims 1 to 13, characterized in that the table grill (1) has a parallelepiped shape, each corner area having an air outlet (10).
15. Table grill according to one of claims 1 to 13, characterized in that the suction opening (8) is arranged in the geometric center of the grill plate (4).
16. Table grill according to one of claims 1 to 15, characterized in that the suction opening (8) is at least partially covered by a shaped part (19), an air space (20) remaining between the shaped part (19) and the edge cutout of the suction opening (8) or between the shaped part (19) and the second collar (14).
17. Table grill (1) according to claim 16, characterized in that the shaped part (19) is a funnel.
18. Table grill (1) according to claim 16 or 17, characterized in that the shaped part (19) is removably fixed to the table grill (1).
19. Table grill according to one of claims 1 to 18, characterized in that the air purification device (6) comprises a filter (28) and / or a fan (27) which is or are removably fixed in the housing.