FUME EXTRACTION DEVICE

Abstract

A fume extraction device for the downward extraction of cooking fumes comprises at least one inflow opening for the inflow of the cooking fumes, and at least one fan for suctioning the cooking fumes at the at least one inflow opening, such fan having a fan propeller that is mounted so as to be rotatable about a rotation axis, wherein the rotation axis is oriented so as to be inclined in relation to a horizontal plane and to a vertical direction.

Claims

1. A fume extraction device for the downward extraction of cooking fumes, having at least one inflow opening for the inflow of the cooking fumes; and at least one fan for suctioning the cooking fumes at the at least one inflow opening, such fan having a fan propeller that is mounted so as to be rotatable about a rotation axis; wherein the rotation axis is oriented so as to be inclined in relation to a horizontal plane and to a vertical direction.

2. The fume extraction device as claimed in claim 1, wherein an inclination angle between the horizontal plane and the rotation axis is in a range from 10° to 85°.

3. The fume extraction device as claimed in claim 1, wherein a suctioning direction of the fan at a downstream end of a negative-pressure duct portion has an upward-pointing directional component.

4. The fume extraction device as claimed in claim 1, comprising a negative-pressure duct portion which fluidically connects the at least one inflow opening to the at least one fan, wherein a duct centerline of the negative-pressure duct portion along the extent thereof has an absolute angular variation in a range from 100° to 170°.

5. A stove top system having at least one fume extraction device as claimed in claim 1; and at least one heating unit for heating food.

6. The stove top system as claimed in claim 5, wherein the at least one fan, when viewed in at least one of a plan view, in a lateral view and in a front view, overlaps the at least one heating unit.

7. The stove top system as claimed in claim 5, comprising a control unit for controlling the at least one of at least one fume extraction device and the at least one heating element, wherein the at least one fan, when viewed in at least one of a plan view, in a lateral view and in a front view, overlaps the at least one control unit.

8. The stove top system as claimed in 5, wherein the fume extraction device comprises a fan, wherein a vertical overall height of the stove top system is at most 200 mm.

9. A fan for suctioning cooking fumes for a fume extraction device as claimed in claim 1, having a fan housing having a negative-pressure connector opening; and a fan propeller which is disposed in the fan housing and is mounted so as to be rotatable about a rotation axis; wherein the rotation axis conjointly with a connector normal that is oriented so as to be perpendicular to the negative-pressure connector opening encloses a connector angle in a range from 10° to 85°.

10. The fan as claimed in claim 9, wherein the rotation axis conjointly with a connector normal that is oriented so as to be perpendicular to the negative-pressure connector opening encloses a connector angle in a range from 30° to 80°.

11. The fume extraction device as claimed in claim 1, wherein an inclination angle between the horizontal plane and the rotation axis is in a range from 30° to 80°.

12. The fume extraction device as claimed in claim 1, wherein a duct centerline of the negative-pressure duct portion along the extent thereof has an absolute angular variation in a range from 120° to 150°.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0100] FIG. 1 shows a perspective illustration of a stove top system having a stove top and a fume extraction device;

[0101] FIG. 2 shows a sectional illustration of the stove top system along the section line II-II in FIG. 1;

[0102] FIG. 3 shows a plan view onto a stove top system according to a further exemplary embodiment, according to which the stove top system comprises six inductive heating units, a fume extraction device having a plurality of crossflow fans, and a food carrier having a multiplicity of inflow ducts, wherein the latter are distributed in a non-homogenous manner across a surface of the food carrier;

[0103] FIG. 4 shows a perspective illustration of a stove top system according to a further exemplary embodiment, comprising a fume extraction device having a single inflow opening configured by a food carrier, and a stove top cover for reversibly and completely covering the food carrier and the inflow opening;

[0104] FIG. 5 shows a sectional illustration of the stove top system along the section line V-V in FIG. 4, having four fans which are disposed in an equiangular and equidistant manner about a vertical axis that runs through a center of area of the inflow opening;

[0105] FIG. 6 shows a sectional illustration of the stove top system along the section line VI-VI in FIG. 4, having a hollow-cylindrical filter;

[0106] FIG. 7 shows a perspective rear view of a stove top system according to a further exemplary embodiment, wherein the stove top system has a stove top having four heating units which are disposed beside one another, a stove top cover having two cover members which are repositionable in a mutually independent manner, and a fume extraction device having an inflow opening which is disposed on the rear side on the stove top;

[0107] FIG. 8 shows a sectional view of the stove top system along the section line VIII-VIII in FIG. 7, wherein an odor filter of the extraction device is disposed in a negative-pressure duct portion disposed upstream of the fans;

[0108] FIG. 9 shows a perspective illustration of a stove top system according to a further exemplary embodiment, having two repositionable cooking odor directing elements for masking in each case one side of an upper space lying upstream of an inflow opening;

[0109] FIG. 10 shows a sectional illustration of the stove top system along the section line X-X in FIG. 9, having two fans which are disposed downstream of the two inflow openings;

[0110] FIG. 11 shows a plan view onto a stove top system according to a further exemplary embodiment, having a food carrier, three heating units disposed thereon, and a fume extraction device for the downward extraction of cooking fumes, wherein an overall width of the stove top system is 560 mm, and wherein all of the heating units, when viewed in a plan view, are disposed at equal spacing from the inflow opening;

[0111] FIG. 12 shows a lateral view of the stove top system in FIG. 11; and

[0112] FIG. 13 shows a plan view onto a stove top system according to a further exemplary embodiment, wherein a central longitudinal axis of an inflow duct is configured so as to be inclined in relation to a stove top normal;

[0113] FIG. 14 shows a plan view onto a stove top system having four heating units and a fume extraction device; and

[0114] FIG. 15 shows a sectional illustration of the stove top system along the section line XV-XV in FIG. 14, having two fans which have in each case one fan propeller that is mounted so as to be rotatable about a rotation axis, wherein the rotation axis is oriented so as to be inclined in relation to a horizontal plane and to a vertical direction.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0115] Various details of a stove top system 1 having a stove top 2 and a fume extraction device 3 will be described hereunder on the basis of FIG. 1 and FIG. 2. The stove top 2 comprises a food carrier 4 having four heating units 5 which for heating food 6 are disposed on said food carrier 4. The stove top system 1 is disposed on a kitchen base unit 7. To this end, the stove top system 1 is fastened to a worktop 8 of the kitchen base unit 7. A surface of the food carrier 4 herein is disposed so as to be flush with a surface of the worktop 8.

[0116] The stove top system 1 comprises a user interface 9 for controlling the fume extraction device 3 and the heating units 5. The user interface 9 is configured as a touch-sensitive screen. The user interface 9 is connected in terms of signals to the fume extraction device 3 and the heating units 5 by way of the control unit which is not illustrated.

[0117] The food carrier 4 comprises a glass plate, in particular a glass-ceramics plate. The glass plate is penetrated by a multiplicity of inflow ducts 10 for extracting the cooking fumes. A cross-sectional area of the inflow ducts 10 is in each case less than 1 mm.sup.2.

[0118] A region which is level or above the food carrier 4 and is able to be heated by the respective heating unit 5 forms one cooktop 11. The respective heating unit 5 can act on the food 6 in the region of the cooktops 11 and heat said food. The food carrier 4 in the region of the cooktops 11 does not have any inflow ducts 10. With the exception of the region of the cooktops 11, when viewed in a plan view, the inflow ducts 10 are disposed so as to be distributed in a mutually equidistant manner on the food carrier 4. The inflow ducts 10 extend in each case in a rectilinear manner and in the vertical direction through the food carrier 4. The inflow ducts 10 have a circular cross section.

[0119] As is illustrated in FIG. 2, the stove top system 1 has a housing 12. A food carrier receptacle 13 is disposed on the housing 12. The food carrier 4 bears from above on the food carrier receptacle 13 and is able to be reversibly removed from the latter without tools in an upward manner. The food carrier receptacle 13 has a tilting edge which is not illustrated. The tilting edge delimits a contact face of the food carrier receptacle 13 in relation to a depression. The depression is configured in such a manner that raising a region of the food carrier 4 that lies opposite the tilting edge may be achieved by stressing the food carrier 4 in a downward manner in a region above the depression.

[0120] The food carrier 4 is configured so as to be dishwasher safe. The food carrier 4 is in particular configured so as to be highly temperature resistant, in particular to temperatures of at least 350° C., and suitable for cleaning by pyrolysis.

[0121] The number of inflow ducts 10 that penetrate the food carrier 4 exceeds 50. A filter 14 is disposed below the food carrier 4, in particular in the regions that are penetrated by the inflow ducts 10. The filter 14, when viewed in a plan view, completely overlaps the inflow ducts 10. The filter 14 is configured as a combination filter for filtering grease and odor from the cooking fumes. The food carrier 4 has a filter receptacle 15. The filter 14 by means of the filter receptacle 15 is reversibly attached to the food carrier 4.

[0122] The food carrier 4 is configured so as to be permeable to gases and impermeable to liquids. To this end, the food carrier 4 in the region of the inflow ducts 10 has a hydrophobic surface coating 16.

[0123] The filter 14 is disposed in a negative-pressure portion 17 of the fume extraction device 3. The negative-pressure duct portion 17 extends between inflow openings 18, which are configured by the inflow ducts 10 on the upper side of the food carrier 4, and fans 19 of the fume extraction device 3. The fume extraction device 3 comprises four fans 19. The fans 19 are configured as crossflow fans. A rotation axis 20 of the respective fan 19 is oriented so as to be horizontal, in particular so as to be parallel to a front edge 20a of the stove top system 1. The fans 19 by way of the negative-pressure duct portion 17 are fluidically connected to the inflow openings 18, and by way of a positive-pressure duct portion 21 are fluidically connected to a cooking fumes outlet 21.

[0124] The fume extraction device 3 is configured for extracting cooking fumes by way of four extraction sections 22a, 22b, 22c, 22d which are able to be operated in a mutually independent manner. To this end, the respective extraction section 22a, 22b, 22, 22d is in each case connected to one of the fans 19 by way of a separate negative-pressure duct portion 17. The surface of the food carrier 4 is sub-divided into four extraction sections 22 of identical area.

[0125] Sealing elements (not illustrated) for connecting in an air-tight manner the negative-pressure duct portion 17 disposed downstream of the respective extraction section 22 to the food carrier 4 are disposed on the negative-pressure duct portion 17. The sealing elements herein completely border the respective extraction section 22.

[0126] The food carrier 4 has a depth T of 500 mm. The stove top system 1 in the front region, in particular across at least 70% of the depth T proceeding from a front edge 20a of the stove top system 1, has a front installation height Hv of 120 mm or less. The installation height HV of the stove top system 1 in this region can in particular be in the range of only 3 cm to 5 cm. A storage space 23 of the kitchen base unit 7 remains largely unimpeded by the stove top system 1 and free of any installations of the latter. A top drawer 24 of the kitchen base unit 7 herein is shortened neither in the vertical direction nor in the depth direction. It is optionally possible for the top drawer 24 of the kitchen base unit 7 to be configured so as to be somewhat shorter in the depth direction so as to have sufficient space for disposing the fan 19 in the rear region.

[0127] The fans 19 have in each case one fan propeller 25. A diameter D of the fan propellers 25 is 80 mm.

[0128] The stove top system 1 is configured as a compact apparatus and as a preassembled system can thus be inserted into the worktop 8 in a simple and rapid manner. The stove top system 1 configured as a compact apparatus herein comprises the housing 12, the stove top 2, and the fume extraction device 3, wherein the negative-pressure duct portion 17 and the fans 19 of the fume extraction device 3 are completely associated with the compact apparatus, but the positive-pressure duct portion 26 disposed downstream of the fans 19 is only partially associated with said compact apparatus.

[0129] The functional mode of the top stove system 1, the fume extraction device 3, the stove top 2, and the food carrier 4 is as follows:

[0130] Putting the stove top system 1 in operation takes place by way of the user interface 9. User inputs for controlling the heating units 5 and the fans 19 are transmitted to the control unit by way of the user interface 9. Electric power for operating the heating units 5 and the fans 19 is provided by means of the control unit. Status and output data of the heating units 5 and of the fans 19 are transmitted to the user interface 9 by way of the control unit, and visually displayed by way of the user interface 9.

[0131] The heating units 5 as well as the fans 19 can be provided with an electric output in a mutually independent manner by means of the control unit. By activating the heating unit 5 disposed in the region of the extraction section 22a, the food 6 disposed there is exclusively heated. By activating the fan 19 that is connected to the extraction section 22a, cooking fumes are extracted by way of the inflow ducts 10 associated with the extraction section 22a.

[0132] A further exemplary embodiment of the stove top system 1 according to the invention will be described hereunder on the basis of FIG. 3. As opposed to the preceding exemplary embodiment, the inflow ducts 10 are disposed in a non-homogenous manner across a surface of the food carrier 4. Moreover, inflow ducts 10 are also disposed in the region of the cooktops 11. The negative-pressure duct portion 17 herein extends in particular between the heating unit 5 and the food carrier 4. To this end, the heating unit 5 is disposed so as to be spaced apart from the food carrier 4. A number of inflow ducts 10 per unit area in a peripheral region of the respective cooktop 11 is larger than in a central region of the respective cooktop 11, and larger than in the peripheral region of the food carrier 4. A cross-sectional area of the inflow ducts 10 varies so as to correspond to the position of the respective inflow duct 10 relative to the cooktop 11. The inflow ducts 10 that are disposed in a peripheral region of the cooktop 11 have a larger cross-sectional area than those inflow ducts 10 in the central region of the cooktop 11 and in the peripheral region of the food carrier 4.

[0133] The inflow ducts 10 are configured so as to be permeable to gases and liquids. A collection tray 27 for overflow liquids is disposed below the food carrier 4. When viewed in a plan view, the collection tray 27 overlaps a multiplicity of the inflow ducts 10.

[0134] The stove top system 1 comprises six stove tops 2 having in each case one food carrier 4. The food carriers 4 of the respective stove tops 2 are configured in a mutually separate manner.

[0135] The functional mode of the stove top system 1 according to the exemplary embodiment illustrated in FIG. 3 corresponds to the functional mode of the stove top system 1 according to the above-described exemplary embodiment. On account of the stove top system 1 having a plurality of stove tops 2 having only a single heating unit 5, the dimensions of the food carriers 4 are correspondingly minor. The food carriers 4 can thus be removed from the respective food carrier receptacle 13 in a particularly simple manner and be cleaned in particular in a dishwasher.

[0136] Upon the retrieval of the food carriers 4 from the respective food carrier receptacle 13, the collection trays 27 can be easily cleaned from above. The filter 14 disposed on the respective food carrier 4 can be cleaned or replaced in a particularly simple manner.

[0137] A further exemplary embodiment of the invention is described by means of FIG. 4 to FIG. 6. As opposed to the above-described exemplary embodiments, the food carrier 4 has a single inflow duct 10. An upper side of the inflow duct 10 forms the single inflow opening 18 of the fume extraction device 3. The inflow opening 18 is covered by an inflow mesh 28.

[0138] The stove top system 1 comprises a stove top cover 29 for reversibly covering the food carrier 4 and the inflow opening 18. The stove top cover 29 comprises a cover member 30 which is able to be repositioned relative to the food carrier 4. The cover member 30 is able to be disposed in a closed position and in an open position. When viewed in a plan view, the cover member 30 in the closed position completely covers the food carrier 4 and the inflow opening 18. The cover member 30 comprises a closure seal 3 for closing the inflow opening 18 in an air-tight manner in the closed position.

[0139] The stove top cover 29 is attached to the stove top 2 in an articulated manner. The stove top cover 29 in the open position exposes the food carrier 4, in particular the cooktops 11, for heating the food, as well as the inflow opening 18 for extracting cooking fumes.

[0140] The surface of the food carrier 4 is disposed so as to be flush with the surface of the worktop 8. The cover member 30 in the closed position bears peripherally on the worktop 8. According to an alternative variant of embodiment (not illustrated) the surface of the food carrier 4 can be disposed below the surface of the worktop 8, and a surface of the stove top cover 29 in the closed position can be disposed so as to be flush with the surface of the worktop 8.

[0141] FIG. 5 shows a section of the stove top system 1 from below. The fume extraction device 3 of the stove top system 1 comprises four fans 19. The fans 19 have a horizontally oriented rotation axis 20. The fans 19, when viewed in a plan view, are disposed in an equidistant and equiangular manner about a vertical axis that runs through a center of area of the inflow opening 18. The rotation axis 20 of in each case two mutually neighboring fans 19 are mutually oriented at an angle of 90°. The diameter D of the fan propellers 25 is 120 mm. The fans 19 are configured as axial fans.

[0142] The fans 19 are connected to the inflow opening 18 by way of a common negative-pressure duct portion 17. The fume extraction device 3 comprises a positive-pressure duct portion 26 that fluidically connects the fans 19.

[0143] As is illustrated in FIG. 6, an overall installation height H of the stove top system is 150 mm. A hollow-cylindrical filter 14 having a collection tray 17 for overflowing liquids is disposed downstream of the inflow opening 18. The filter 14 is configured as a grease filter.

[0144] The functional mode of the stove top system 1 according to the exemplary embodiment illustrated in FIG. 4 to FIG. 6 corresponds to the functional mode of the stove top system 1 according to the preceding exemplary embodiments. The inflow mesh 27 is able to be reversibly removed from the food carrier 4. The filter 14 can be removed from the inflow opening 18. The stove top cover 29 can be pivoted between the closed position and the open position. The food carrier 4 is fixedly connected to the worktop 8.

[0145] A further exemplary embodiment of the invention is described on the basis of FIG. 7 and FIG. 8. As opposed to the preceding exemplary embodiments, the stove top system 1 comprises a stove top 2 having four heating units 5 which are disposed beside one another. An inflow opening 18 of the fume extraction device 3 has a rectangular contour and is disposed behind the heating units 5, or the cooktops 11, respectively. The inflow opening 18 by way of a negative-pressure duct portion 17 is aerodynamically connected to four fans 19 which have in each case one fan propeller 25. The rotation axes 20 of the fan propellers 25 are oriented so as to be mutually parallel and horizontal.

[0146] A maximum front installation height Hv in a horizontal region from a front edge 20a up to a geometric center of area SP of the stove top system 1 is 120 mm or less. The installation height HV of the stove top system 1 in this region can in particular be in the range of only 3 cm to 5 cm. The stove top system 1, has a minor installation height of this type in particular proceeding from the front edge 20a thereof across a depth T of at least 30 cm, in particular at least 40 cm. An overall height H of the stove top system 1 is 180 mm or less.

[0147] The stove top cover 29 has two cover members 30. The two cover members 30 are able to be disposed in a mutually independent manner between the open position and the closed position. Each of the cover members 30 in the closed position completely covers in each case two of the cooktops 11, and laterally half of the inflow opening 18.

[0148] The two cover members 30 are in each case attached to the stove top system 1 by way of a rotating mechanism 31a. The rotating mechanism 31a has a drive spring (not illustrated) and a damper element (likewise not illustrated). The rotating mechanism 31a guarantees that the respective cover member 30 can be opened and closed by way of a smooth and damped movement.

[0149] As is illustrated in FIG. 8, the fume extraction device 3 comprises two filters 14a, 14b that are disposed in the negative-pressure duct portion 17. The first filter 14a disposed in the direction of flow after the inflow opening 18 is configured as a grease filter, and the second filter 14b is configured as an odor filter. An activated carbon filter serves in particular as an odor filter. The second filter 14b can in particular have one or a plurality of activated carbon elements. Said activated carbon elements can be replaceable in a simple manner. Said activated carbon elements can in particular be able to be removed through the inflow opening 18.

[0150] Alternatively or additionally to the second filter 14b in the negative-pressure duct portion 17, an odor filter, in particular in the form of an activated carbon filter, can be disposed downstream of at least one of the fans 19. It is in particular possible for a corresponding odor filter to be disposed downstream of each of the fans 19. Said odor filters are preferably replaceable, in particular replaceable without tools. Said odor filters can in particular be able to be removed from the positive-pressure duct portion 26 by way of retrieval openings that are in each case provided.

[0151] The stove top cover 29 comprises in each case one closure lid 32 which for closing the inflow opening 18 in an air-tight manner is connected to the cover member 30. The cover member 30 is disposed so as to be spaced apart from the closure lid 32.

[0152] The functional mode of the stove top system 1 corresponds to the functional mode of the stove top system 1 according to the aforementioned exemplary embodiments. On account of the relative repositioning capability of the cover members 30 in relation to one another, the inflow opening 18 can selectively be covered not at all, so as to be laterally half-covered, or be completely covered. When half the inflow opening 18 is laterally covered, the extraction output is increased in the non-covered region of the inflow opening 18 while the output of the fans 19 remains the same. The non-covered cooktops 11 can continue to be used for heating food 6. The cooktops 11 covered by the cover members 30 are automatically deactivated. To this end, the control unit is connected in terms of signals to contact switches 33 for detecting the cover member 30 disposed in the closed position.

[0153] A further exemplary embodiment of the invention is described by means of FIG. 9 and FIG. 10. As opposed to the preceding exemplary embodiments, the extraction device 3 comprises two inflow openings 18 which are formed by two inflow ducts 10 that penetrate the food carriers 4. The fume extraction device 3 moreover comprises two baffle elements 34 which are disposed so as to neighbor the inflow openings 18 and are oriented so as to be parallel to a main extent of the inflow openings 18. The baffle elements 34 are in each case configured as a shell with a single curvature. The baffle elements 34 are able to be repositioned relative to the food carrier 4 between a restoring position and a directing position. The respective baffle element 34 in the directing position is at least in portions disposed above the food carrier 4. The respective baffle element 34 in the directing position laterally masks in each case an upper space that lies upstream of the respective inflow opening 18 in relation to the inflow opening 18. In the restoring position, an upper side of the respective baffle element 34 is disposed so as to be flush with the surface of the respective inflow opening 18 that adjoins said baffle element 34.

[0154] The baffle elements 34 have a closure element 35. The closure element 35 is configured for covering the respective inflow opening 18 in the restoring position.

[0155] As is illustrated in FIG. 10, the stove top system 1 has one gate guide 36 for repositioning each of the baffle elements 34.

[0156] The functional mode of the stove top system 1 illustrated in FIGS. 9 and 10 corresponds to the functional mode of the stove top system according to the exemplary embodiments described above. The repositioning of the respective baffle element 34 along the gate guide 36 enables one side of the upper space to be masked in order for the cooking fumes to be extracted in a directed manner in the directing position, and the respective inflow opening 18 to be closed in the restoring position, wherein an exit of odors from the fume extraction device 3 is reliably prevented.

[0157] A further exemplary embodiment of the invention will be described on the basis of FIG. 11 and FIG. 12. As opposed to be preceding exemplary embodiments, the stove top system 1 has a food carrier 4, three heating units 5, and a fume extraction device 3 having exactly one fan 19. The fan 19 of the fume extraction device 3 is configured as a radial fan. The fan 19 is fluidically connected to the inflow opening 18 by way of the inflow duct 10.

[0158] An overall width B of the stove top system 1 is 560 mm. The overall installation height H of the stove top system 1, including the fan 19, is 180 mm. The depth T of the stove top system 1 is 515 mm.

[0159] The fume extraction device 3 comprises the fan 19, wherein the stove top system 1 is configured as a combination apparatus for the integral installation in the worktop 8.

[0160] The inflow opening 18 of the fan 19 penetrates the food carrier 4. When viewed in a plan view, the inflow opening 18 is circular. The fume extraction device 3 has an inflow mesh 28 which is able to be reversibly disposed on the inflow opening 18. When viewed in a plan view, the inflow mesh 28 completely covers the inflow opening 18. The inflow mesh 28 comprises fin-shaped baffle elements 34 which for supporting a laminar extraction of the cooking fumes through the inflow mesh 28 and the inflow opening 18 are disposed so as to be mutually concentric.

[0161] A geometric center of area 37 of the inflow opening 18 is disposed so as to be spaced apart from a geometric center of area 38 of the food carrier 4. A spacing a.sub.E between the geometric center of area 37 of the inflow opening 18 and the geometric center of area 38 of the food carrier 4 is 100 mm. The geometric center of area 37 of the inflow opening 18, when viewed in the plan view, is disposed so as to be spaced apart from the geometric center of area 38 of the food carrier 4 along a width direction 39 as well as along a depth direction 40.

[0162] A minimum spacing a.sub.H1 between the first heating unit 5 and the geometric center of area 38 of the food carrier 4 is 75 mm, and a minimum spacing a.sub.H2 between the second heating unit 5 and the geometric center of area 38 of the food carrier 4 is 10 mm. A minimum spacing a.sub.EH1 between the inflow opening 18 and the first heating unit 5 is equal to a minimum spacing a.sub.EH2 between the inflow opening 18 and the second heating unit 5, and equal to a minimum spacing a.sub.EH3 between the inflow opening 18 and the third heating unit 5. The minimum spacing a.sub.EH1, a.sub.EH2, a.sub.EH3 between the inflow opening and the heating units 5 is 40 mm.

[0163] The stove top system 1 has the user interface 9. The user interface 9 comprises a touch-sensitive surface 41 as well as a multiplicity of display elements 42. The user interface 9 is configured for controlling the heating units 5 and the fume extraction device 3. When viewed in a plan view, the user interface 9 relative to one of the heating units 5 is disposed opposite the inflow opening 18. In particular, an external periphery of the user interface 9 along the width direction 39 and along the depth direction 40 is disposed so as to be spaced apart from the geometric center of area 38 of the food carrier 4. The user interface 9 is disposed in a lateral peripheral region of the food carrier 4.

[0164] The stove top system 1 is illustrated in a lateral view in FIG. 12. The fan 19 comprises a fan housing 43. The fan housing 43 is disposed above a lowest point of the inflow duct 10. A spacing between the lowest point of the inflow duct 10 and the fan housing 43 is 50 mm. The fan housing 43 is completely disposed below the heating elements 5. A particularly compact configuration of the stove top system 1 in the horizontal direction is thus guaranteed.

[0165] The stove top system 1 is at least partially received in a kitchen base unit 42a. The stove top system 1 penetrates the worktop 8 which is supported on the kitchen base unit 42a. A unit width BK of the kitchen base unit 42a is 600 mm. A unit depth TK of the kitchen base unit 42a is likewise 600 mm. The kitchen base unit 42a has a storage space 42b for receiving the stove top system 1 as well as draws or shelves. A storage space width B.sub.S of the kitchen base unit 42a is 580 mm.

[0166] The kitchen base unit 42a has an insulation 43a. The insulation 43a is disposed on the kitchen base unit 42a in such a manner that said insulation surrounds a lower side and a front side of the stove top system 1. The insulation 43a guarantees a reduced noise emission and a reduced thermal input into a lower region of the kitchen base unit 42a.

[0167] The functional mode of the stove top system 1 according to this exemplary embodiment corresponds to the functional mode of the stove top systems 1 described above.

[0168] A further exemplary embodiment of the stove top system 1 is illustrated in FIG. 13. As opposed to the stove top systems 1 described above, an initial portion 44 of the inflow duct 10 has a central longitudinal axis 45 which is oriented so as to be oblique to a stove top normal 46. An angle between the central longitudinal axis 45 of the initial portion 44 and the stove top normal 46 is 45°.

[0169] The initial portion 44 is circular in the cross section. On account of the oblique orientation of the central longitudinal axis 45 in relation to the stove top normal 46, the inflow opening 18 is of elliptic shape.

[0170] On account of the overall width B of the stove top system being at most 600 mm, in particular 560 mm, a disposal of the stove top system 1 with the fume extraction device 3 is for the first time enabled in a kitchen base unit 42a having particularly minor dimensions. It is advantageously achieved on account thereof that stove top systems 1 of this type are able to be used in a particularly flexible manner and thus able to be installed to a significantly larger extent. An embodiment of the stove top system 1 having an installation height of at most 200 mm is particularly advantageous, since the storage space 42b is largely maintained for receiving cooking utensils, for example.

[0171] A further exemplary embodiment of the stove top system 1 is illustrated in FIG. 14 and FIG. 15. As opposed to the stove top systems 1 described above, the fume extraction device 3 comprises two fans 19 having in each case fan propellers 25 which are mounted so as to be rotatable about a rotation axis 20, wherein the rotation axes 20 are in each case oriented so as to be inclined in relation to a horizontal plane and in relation to a vertical direction. The stove top system 1, when viewed in a plan view, comprises four rectangular heating units 5. The heating units 5 and the fume extraction device 3 are connected in terms of signals to a user interface 9.

[0172] The fume extraction device 3 has an inflow opening 18 which is centrally disposed on a food carrier 4. An initial portion 44 of a negative-pressure duct portion 17 is connected to the inflow opening 18.

[0173] The fans 19 have in each case one fan housing 43. The fan housing 43 comprises a negative-pressure connector opening 47. The initial portion 44 penetrates the negative-pressure connector opening 47. A duct connection 48 connects the initial portion 4 in a fluid-tight manner to the fan housing 43.

[0174] A connector normal 49 is oriented so as to be perpendicular to the negative-pressure connector opening 47. The connector normal 49 conjointly with the rotation axis 20 encloses a connector angle α of 80°.

[0175] A power electronics unit 50 for supplying the heating units 5 is attached below the respective heating unit 5. A space which in a region between the respective heating unit 5 and the fan 19 is required for the power electronics unit 15, in particular for individual components of the power electronics unit 15 that are particularly intensive in terms of installation space, is provided by inclining the rotation axis 20.

[0176] When viewed in a plan view as well as in a lateral view, the two fans 19 overlap the heating units 5. On account thereof, the stove top system 1 is of a particularly compact configuration. An overall installation height H is 180 mm.

[0177] A suction installation 51 of the fan 19 has a directional component which is directed vertically upward. The suction installation 51 is oriented so as to be parallel to the rotation axis 20. On account of the suction installation 51 having the upward-pointing directional component, the fan 19 is reliably protected in relation to ingressing liquids.