EP3379900B1 - Hotplate - Google Patents
Hotplate Download PDFInfo
- Publication number
- EP3379900B1 EP3379900B1 EP18161499.1A EP18161499A EP3379900B1 EP 3379900 B1 EP3379900 B1 EP 3379900B1 EP 18161499 A EP18161499 A EP 18161499A EP 3379900 B1 EP3379900 B1 EP 3379900B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- carrier
- plate
- supporting
- carrier plate
- supporting carrier
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000010438 heat treatment Methods 0.000 claims description 31
- 238000005452 bending Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 6
- 239000000969 carrier Substances 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 230000006698 induction Effects 0.000 description 13
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
- H05B6/12—Cooking devices
- H05B6/1209—Cooking devices induction cooking plates or the like and devices to be used in combination with them
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
- H05B6/12—Cooking devices
- H05B6/1209—Cooking devices induction cooking plates or the like and devices to be used in combination with them
- H05B6/1236—Cooking devices induction cooking plates or the like and devices to be used in combination with them adapted to induce current in a coil to supply power to a device and electrical heating devices powered in this way
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
- H05B6/12—Cooking devices
- H05B6/1209—Cooking devices induction cooking plates or the like and devices to be used in combination with them
- H05B6/1245—Cooking devices induction cooking plates or the like and devices to be used in combination with them with special coil arrangements
- H05B6/1281—Cooking devices induction cooking plates or the like and devices to be used in combination with them with special coil arrangements with flat coils
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2206/00—Aspects relating to heating by electric, magnetic, or electromagnetic fields covered by group H05B6/00
- H05B2206/02—Induction heating
- H05B2206/022—Special supports for the induction coils
Definitions
- the invention relates to a hob with a hob plate, with heating devices underneath and with a carrier plate which carries the heating devices.
- an induction hob is known with a hob plate and with heating devices arranged on its underside in the form of inductors.
- the inductors are mounted in their own support shells, which are resiliently mounted on a support plate in order to be able to press them against the underside of a hob plate above.
- the carrier plate also has further functional units of the induction hob, for example electrical circuits for controlling or supplying power to the inductors.
- the disadvantage here is the suspension effort, which is considered to be relatively high.
- the inductors can also be mounted directly on a carrier plate, possibly also resiliently.
- the invention is based on the object of creating a hob mentioned at the beginning with which problems of the prior art can be avoided and in particular it is possible to fasten heating devices on the carrier plate in a practical and effective manner, and preferably a safe installation of heating devices on an underside of the To reach the hob plate.
- the hob has a hob plate, heating devices arranged underneath, and a carrier plate which carries the heating devices.
- the support plate should cover a large part of the hob plate or have or cover at least 80% of the area of the hob plate.
- the hob plate covers or projects beyond the carrier plate with a narrow edge of a maximum width of 3 cm.
- a support carrier for the carrier plate, which is designed in the manner of an elongate carrier or which is an elongate carrier.
- the support beam spans the support plate largely or at least 80% of its length in one direction or its length is at least 80% of the extension of the hob plate in this direction, advantageously the entire length of the support plate in one direction. This means that the support beam can run approximately from outer edge to outer edge of the carrier plate, whereby it does not necessarily have to run just over it.
- the support bracket is attached to the carrier plate or connected to it and above all prevents it from bending, in particular bending due to the contact pressure of heating devices arranged on it, which are pressed against an underside of the hob plate, as well as bending due to the influence of temperature due to heating during operation .
- the support beam can run with an under grip area under the support plate and with an over grip area above the support plate. This makes it possible for the support carrier to partially also support the carrier plate directly from below or to prevent it from bending. In a transition area in which the support beam changes from the under grip area to the over grip area, it is also particularly possible to connect the support beam and the support plate to one another in order to support the support plate in this area as well or by the support beam to prevent their unwanted bending.
- the lengths or longitudinal expansions of the under grip area and / or over reach area are advantageously at least 10% to 25% of the length of the support beam.
- the support carrier can be designed as an independent component produced separately from the carrier plate.
- the support carrier can then be fastened to the carrier plate or connected to it, for example in a non-detachable manner or in a non-destructive manner.
- Some connections such as screw connections or the like. Although they have the advantage that they can be removed again, for example for repair or replacement.
- a non-detachable connection has the advantage that it does not detach during operation and is therefore more permanent or more secure. Frequently, such non-detachable connections can also be produced more easily in an automated manner when assembling a hob, that is to say when connecting the carrier plate and the support beam. Possibilities for this are explained in more detail below.
- the support beam can be connected to the support plate at its two end regions, in particular relatively close to the respective outer end, for example at a distance of a maximum of 5% or 10% of the length of the support beam.
- a further connection to the support plate can be provided at least once in a central area or middle area of the support beam, which lies between the end areas. In this way, a three-point fastening can be achieved which, above all, advantageously helps to avoid bending of the support plate in its central area.
- a connection in a central region of the support beam or the support plate with one another can have a distance to the ends of the support beam which is at least 20% to 30% of the length of the support beam, the distance advantageously being 30% to 45% of the length of the support beam.
- a connection of the support beam to the support plate in the above-described central region can be realized by a holding section.
- a holding section can protrude from the support beam, so that an elongated, narrow holding slot is formed between this holding section and the other support beam, preferably approximately parallel to the support beam.
- a section of the carrier plate can engage in this holding slot for connection and holding.
- Such a fastening can indeed be released again very easily, for example by moving the support beam in its longitudinal direction or in the longitudinal direction of the holding slot.
- a supporting connection between the support beam and the carrier plate can be established without additional work, which acts at least in one direction perpendicular to the carrier plate.
- a holding section which engages in a region of the support beam can also protrude from the carrier plate.
- Said holding slot can run with its longitudinal direction either parallel or at a very shallow angle to the plane of the hob plate, which is advantageously also a plane of the carrier plate.
- Such an angle can be between 0 ° and a maximum of 10 °, in particular 0 °.
- the angle can be deliberately flat, but not too small.
- Such an angle can be between 15 ° and 30 ° to the plane of the hob plate or the carrier plate. This makes it easier to insert a section of the carrier plate into the holding slot with a movement which runs obliquely to the plane of the hob plate or the carrier plate.
- the support beam in a further refinement of the invention, it is possible for the support beam to be fastened to the carrier plate as a connection by material deformation, which essentially corresponds to an aforementioned non-detachable connection.
- Possibilities here are riveting as an alternative to screwing or caulking a fastening section which is provided in particular on the support beam.
- a fastening section can also be bent in the manner of a flexible tab or a retaining tab. Riveting can be done on the one hand with a separate rivet in addition to the support beam and the support plate.
- a fastening section on one part can reach through the plane of the other part, advantageously through a correspondingly formed opening in the other part, and then widened or caulked to prevent the connection from loosening. Then some kind of integrated rivet is provided.
- the carrier plate has an opening, possibly relatively large, at least in a central region.
- Such an opening can be provided, for example, for the electrical connection of the heating devices in an area below the carrier plate, as is generally known for induction hobs.
- the support beam can run at least partially through this opening and thereby pass through the plane of the carrier plate in the area of this opening from the under grip area into the over grip area or vice versa. Then there is no need to make a separate opening for the support beam through the support plate. If the support beam runs through this opening approximately in the middle, the opening can still comfortably be used for its actual purpose, for example the aforementioned electrical connection.
- an edge of the aforementioned opening as a section of the carrier plate engages in a previously described holding slot in the support beam, so that the holding section of the support beam runs underneath for connection. This is sufficient to fasten and thus support the carrier plate in this area or in the central area of the carrier plate.
- the support beam in yet another embodiment, it is also possible for the support beam to have two holding sections, each with a holding slot towards the support beam, which then also run in mutually opposite directions.
- One edge of the opening can engage in each of the two holding slots. It can be provided that opposite edges of the opening engage in such holding slots. Since this cannot usually be achieved with a linear movement of the support beam relative to the support plate, the support beam can be mounted after inserting the retaining sections with the retaining slot in each case into the opening and then rotating it.
- the opening extends so that it spans a longer area of this opening, the spanned length of the opening becoming shorter by turning or a corresponding assembly movement and its edges thereby engaging in the aforementioned holding slots.
- the support beam can be fastened to the support plate with the grip area from above or connected to it. With the overlap area, it can be attached to it from below, that is, in both areas from the other side.
- Screw connections can also be provided, in which case a thread is advantageously provided in a bent section of the support beam or screws are passed through the support plate as sheet metal screws and are then screwed into the support beam.
- the support bracket advantageously has a greater thickness than the support plate, so that a thread of a screw can engage better here.
- an operating device can be arranged in a front area on the carrier plate, which, in addition to control functions, primarily has operating elements.
- These operating elements can, for example, have touch sensors and can be pressed against the underside of a hob plate, as is well known from the prior art.
- heating devices can be arranged on the carrier plate, advantageously inductors for an induction cooking field. These heating devices cover most of the area of the carrier plate, in particular at least 70% or even 80%.
- the support beam then advantageously runs in the front area with the grip area below the support plate. In the rear area it runs with the overlap area above the carrier plate. In this case, the support beam can run in this rear area between adjacent heating devices. If the support beam is designed to be narrow and rather high, which is advantageously provided so that it has a certain height for rigidity against bending, it does not need much space and can therefore also run well even between adjacent heating devices at a small distance from one another.
- the support beam runs below the operating device arranged on the carrier plate, so that it does not have to be divided or does not have to have a passage for the support beam.
- an operating device can be designed with a continuous printed circuit board on which electrical components and in particular also the operating elements or touch sensors are then arranged.
- the arrangement of the support beam in the rear area above the carrier plate is advantageous since the area below the carrier plate is then not impaired by the support beam.
- the hob is designed as the aforementioned induction hob, this is advantageous because power electronics and other components that may also need a cooling air duct can then be installed underneath without impairment.
- the direction of the support beam relative to the hob or the support plate is irrelevant, it is essential that the support beam crosses a central area of the support plate that should be supported as well as possible against bending.
- a course of the support beam in one direction of the hob from the back to the front is preferred, since the advantageous division of the overlapping area and undergripping area is then possible.
- a single support beam can be provided, which runs over the central region and preferably over a center point of the surface of the support plate to support it. This is also considered to be advantageous in the case of hobs which have, so to speak, a kind of mirror-symmetrical division of the heating devices between left and right, so that the support beam can easily run between them.
- a second embodiment of the invention especially in the case of an extra-wide hob, three heating devices or three groups of heating devices of approximately the same size can be provided next to one another. Exactly two support beams can then be provided here, which run parallel to one another from the front to the rear and each run through between adjacent groups of heating devices. In this way, carrier plates of such wide hobs, which usually have a width of about 90 cm, can also be well supported against bending.
- the support beam consists or is made of a flat material.
- a thickness of the flat material can be 1 mm to 5 mm, advantageously about 2 mm to 5 mm.
- Such a relatively thin support beam can for example be made of metal, in particular aluminum. It can have only one or two fastening sections protruding at right angles, which are attached to the carrier plate issue. They are intended to ensure that the support beam with its elongated cross-section is upright and approximately at right angles to the surface of the carrier plate or to the carrier plate itself and thus has great rigidity against bending.
- these fastening sections can also serve to fasten the support beam to the carrier plate, for example by passing screws or rivets, as has been generally explained above.
- they can have fastening tabs angled again at an outer end, which in turn run approximately perpendicular to the surface of the carrier plate. These can then be used for the riveting, caulking or bending described above.
- a flat support beam the profile of which is essentially perpendicular to the surface of the support plate, can advantageously run along the support plate or at least be in contact with or touch the support plate over a larger area of its length, in particular with an edge. In particular, this is provided in the underhand area so that the carrier plate can be supported very easily against bending downwards.
- a height of the support beam should be a maximum of 2 cm to 3 cm, advantageously 1 cm to 1.5 cm, so that it is only by a maximum of this amount above the surface of the carrier plate upwards with the overlap area or downwards with the Underhand area. Since hobs, in particular the aforementioned induction hobs, should be built as flat as possible, the structural height should not be increased unnecessarily by the support beam, and ideally not at all. Thus, the support beam should neither protrude above the heating devices with the overlap area nor power electronics or the like with the undergrip area. for the heating devices below.
- a support beam 11 is shown in side view or in plan view, which consists of 2 mm to 5 mm thick material, advantageously aluminum or sheet steel.
- the support beam 11 has an under grip area 13 on the right and an overlap area 15 on the left, the overlap area 15 being almost three times as long.
- the areas 13 and 15 are connected by a transition area 17 which is designed as a type of double kink.
- the support beam 11 has an angled fastening section 19 as well as at the other end at the overhanging area 15.
- a screwing or riveting with a carrier plate for fastening can be made on the fastening sections 19, like the following Figs. 3 to 5 demonstrate.
- a holding section 21 is provided which projects downwards and forms a holding slot 22 for the rest of the support beam 11.
- the retaining slot 22 can be seen to run parallel to the support beam 11 in the overlapping area 15.
- the fastening sections 19 are angled in different directions from the support beam 11 so that a tilt-proof connection to a support plate is made possible or the support beam 11 can be at right angles thereto.
- the carrier plate 24 is designed largely conventionally, as is customary for induction hobs, and consists of a 1 mm to 2 mm thick aluminum sheet. As can be seen above all from the oblique view, it is largely flat in the middle area and bent down at the edges. However, this is known in principle and is used for stabilization and for mounting on a glass frame of a hob. In the middle area, the carrier plate 24 has an opening 26, which is also used, for example, to lead down connecting cables from inductors placed on the carrier plate 24 to the electrical connection. But this is known.
- the support beam 11 runs with the grip area 13 below the support plate 24 and with the grip area 25 above it. In both areas, it rests directly on the carrier plate 14, which is particularly important for the support function in the grip area 13.
- the support bracket 11 can either only run through the rectangular opening 26 from bottom to top or, as is provided here, at a through slot 27. This through slot 27 extends from the right edge of the opening 26. This makes it possible for the support bracket 11 a little earlier from the under grip area 13 into the overlap area 15, so to speak, and runs above the carrier plate 24.
- the support beam 11 is fastened to the support plate 24 by screws 29 which have a thread incision in the fastening sections 19 of the support beam 11. Therefore, the screw 29 for the fastening section 19 of the grip area 13 is guided from above and lies, so to speak, on the carrier plate 24, while the screw 29 for the attachment section 19 of the grip area 15 runs from bottom to top.
- screws 29 instead of such screws 29, rivets or other form-fitting connecting elements could also be used.
- a further fastening in the central area takes place in that the holding section 21 engages under the left edge of the opening 26 in such a way that this edge engages in the holding slot 22.
- the support beam 11 is not completely straight or in the overlap area 15 at the lower edge from the free end to the holding section 21 is slightly curved upwards, as well as at the upper edge of the undergrip area 13.
- the Carrier plate 24 is pre-bent slightly upwards by engaging in the holding slot 22 at the bottom of the support carrier 11.
- the pressure load mentioned at the beginning it can be bent slightly downwards and is still flat or horizontal and in particular parallel to a hob plate.
- a plurality of slots 31 are arranged in the carrier plate, which on the one hand form four square fields, each of which is later to carry an induction coil. In some corners of these fields slots 31 are provided in a round shape. On the one hand, these slots prevent excessive heating within the metal support plate 15. On the other hand, they can have an advantageous effect on deformation of the carrier plate 24 due to high temperatures.
- FIG. 4 An operating device can later be attached to the right front area 25 of the carrier plate 24. This is from the sectional view in Fig. 6 to be seen through a hob 33 according to the invention with a hob plate 34 shown in dashed lines, an operating device 35 is indicated there. Below the support plate 24, further components of the hob 33, in particular power electronics 39 or the like, are carried by a support shell 37.
- FIG. 7 to 9 an alternative embodiment of a support beam 111 is shown with an under reach area 113 on the right and an over reach area 115 on the left, which is also again is considerably longer. In between there is a transition area 117.
- the basic course of the support beam 111 is similar to that of the support beam 11 Fig. 1 .
- the fastening sections 19 and the holding section 21 are missing here.
- Three expanding tabs 120 are provided for this. Actually only two expansion tabs are necessary, and the outermost tab is mainly used for lateral fixation. It can also be designed as an expansion tab, but does not have to be from a functional point of view.
- FIG. 8 shows that the support bracket 111 does not offer as good stability against tilting when it is attached to a support plate 124, compared to the arrangement of FIG Fig. 3 , where the fastening portions 19 prevent each.
- the expansion tabs 120 serve, like the enlarged section according to FIG Fig. 10 the attachment of the middle expansion tab 120 to the carrier plate 124 shows that here, as the arrow indicates, after inserting the expansion tab 120 through a corresponding recess 128 in the carrier plate from below either with a flat hammer or the like. the expansion tab 120 is bent or tapped, similar to riveting.
- an edge or a wedge can be struck into the expansion tab 120, as a result of which the expansion tab 120 is separated into left and right halves, which are spaced apart from one another and thus effect a fastening within the recess 128.
- this is basically known to the person skilled in the art.
- FIG. 11 The sectional illustration of a hob 133 according to FIG Fig. 11 again essentially corresponds to that from Fig. 6 , only here without a hob.
- An elongated operating device 135 is provided in the area shown on the right, which is a front area of the finished hob 133. This shows the top view of the Fig. 12 as well as the oblique view of the Fig. 13 even better.
- eight induction coils 140 are arranged or placed on the carrier plate 124, for example. Their cables as power connections 141 partially run through corresponding openings in the support beam 111. Control connections run in this way.
- temperature sensors or the like can also be installed on the induction coils 140. be arranged, which also have connections. In principle, these connections can also run as described above.
- the support beam 111 extends below it in the front area of the hob 133 or on the carrier plate 124, in particular to enable the continuous design of the operating device 135. In this way, their structure and installation is considerably simplified. In addition, the support plate 124 is automatically supported here.
Description
Die Erfindung betrifft ein Kochfeld mit einer Kochfeldplatte, mit Heizeinrichtungen darunter und mit einer Trägerplatte, die die Heizeinrichtungen trägt.The invention relates to a hob with a hob plate, with heating devices underneath and with a carrier plate which carries the heating devices.
Aus der
Aus der
Der Erfindung liegt die Aufgabe zugrunde, ein eingangs genanntes Kochfeld zu schaffen, mit dem Probleme des Standes der Technik vermieden werden können und es insbesondere möglich ist, Heizeinrichtungen auf der Trägerplatte praxistauglich und gut zu befestigen sowie vorzugsweise eine sichere Anlage von Heizeinrichtungen an einer Unterseite der Kochfeldplatte zu erreichen.The invention is based on the object of creating a hob mentioned at the beginning with which problems of the prior art can be avoided and in particular it is possible to fasten heating devices on the carrier plate in a practical and effective manner, and preferably a safe installation of heating devices on an underside of the To reach the hob plate.
Gelöst wird diese Aufgabe durch ein Kochfeld mit den Merkmalen des Anspruchs 1. Vorteilhafte sowie bevorzugte Ausgestaltungen der Erfindung sind Gegenstand der weiteren Ansprüche und werden im Folgenden näher erläutert.This object is achieved by a hob with the features of claim 1. Advantageous and preferred embodiments of the invention are the subject matter of the further claims and are explained in more detail below.
Es ist vorgesehen, dass das Kochfeld eine Kochfeldplatte, darunter angeordnete Heizeinrichtungen sowie eine Trägerplatte aufweist, die die Heizeinrichtungen trägt. Die Trägerplatte sollte dabei einen Großteil der Kochfeldplatte überdecken bzw. mindestens 80% der Fläche der Kochfeldplatte aufweisen oder überdecken. Insbesondere überdeckt oder überragt die Kochfeldplatte die Trägerplatte mit einem schmalen Rand von maximal 3 cm Breite.It is provided that the hob has a hob plate, heating devices arranged underneath, and a carrier plate which carries the heating devices. The support plate should cover a large part of the hob plate or have or cover at least 80% of the area of the hob plate. In particular, the hob plate covers or projects beyond the carrier plate with a narrow edge of a maximum width of 3 cm.
Erfindungsgemäß ist für die Trägerplatte ein Stützträger vorgesehen, der nach Art eines länglichen Trägers ausgebildet ist bzw. der ein länglicher Träger ist. Der Stützträger überspannt in einer Richtung die Trägerplatte weitgehend bzw. zu mindestens 80% ihrer Länge oder seine Länge beträgt mindestens 80% der Ausdehnung der Kochfeldplatte in dieser Richtung, vorteilhaft die gesamte Länge der Trägerplatte in einer Richtung. Dies bedeutet, dass der Stützträger in etwa von Außenkante zu Außenkante der Trägerplatte verlaufen kann, wobei er nicht zwingend nur über ihr verlaufen muss. Der Stützträger ist an der Trägerplatte befestigt bzw. mit ihr verbunden und verhindert vor allem deren Durchbiegen, insbesondere ein Durchbiegen aufgrund des Anlagedrucks von darauf angeordneten Heizeinrichtungen, die gegen eine Unterseite der Kochfeldplatte angedrückt sind, sowie auch ein Durchbiegen aufgrund eines Temperatureinflusses wegen Erwärmung im Betrieb. Der Stützträger kann mit einem Untergriff-Bereich unter der Trägerplatte verlaufen und mit einem Übergriff-Bereich über der Trägerplatte. Dadurch wird es ermöglicht, dass der Stützträger die Trägerplatte teilweise auch von unten direkt stützt bzw. ein Durchbiegen verhindert. In einem Übergangs-Bereich, in dem der Stützträger vom Untergriff-Bereich in den Übergriff-Bereich wechselt, ist es auch besonders gut möglich, Stützträger und Trägerplatte miteinander zu verbinden, um die Trägerplatte gerade auch in diesem Bereich zu stützen bzw. durch den Stützträger deren ungewollte Verbiegung zu verhindern. Vorteilhaft betragen die Längen bzw. Längenausdehnungen von Untergriff-Bereich und/oder Übergriff-Bereich mindestens 10 % bis 25 % der Länge des Stützträgers. Durch das Durchstoßen der Fläche bzw. der Ebene der Trägerplatte von unten nach oben oder von oben nach unten ist nicht nur ein zumindest teilweises direktes Unterstützen der Trägerplatte durch den Stützträger möglich. Vielmehr kann so auch eine bessere Variabilität erreicht werden dahingehend, dass sowohl über als auch unter der Trägerplatte Bereiche vorhanden sind, in denen der Stützträger nicht verläuft und somit auch nicht stören kann.According to the invention, a support carrier is provided for the carrier plate, which is designed in the manner of an elongate carrier or which is an elongate carrier. The support beam spans the support plate largely or at least 80% of its length in one direction or its length is at least 80% of the extension of the hob plate in this direction, advantageously the entire length of the support plate in one direction. This means that the support beam can run approximately from outer edge to outer edge of the carrier plate, whereby it does not necessarily have to run just over it. The support bracket is attached to the carrier plate or connected to it and above all prevents it from bending, in particular bending due to the contact pressure of heating devices arranged on it, which are pressed against an underside of the hob plate, as well as bending due to the influence of temperature due to heating during operation . The support beam can run with an under grip area under the support plate and with an over grip area above the support plate. This makes it possible for the support carrier to partially also support the carrier plate directly from below or to prevent it from bending. In a transition area in which the support beam changes from the under grip area to the over grip area, it is also particularly possible to connect the support beam and the support plate to one another in order to support the support plate in this area as well or by the support beam to prevent their unwanted bending. The lengths or longitudinal expansions of the under grip area and / or over reach area are advantageously at least 10% to 25% of the length of the support beam. By piercing the surface or the plane of the carrier plate from bottom to top or from top to bottom, not only an at least partial direct support of the carrier plate by the support beam is possible. Rather, better variability can be achieved in this way in that areas are present both above and below the carrier plate in which the support carrier does not run and therefore cannot interfere.
In Ausgestaltung der Erfindung kann der Stützträger als separat von der Trägerplatte hergestelltes eigenständiges Bauteil ausgebildet sein. Im fertigen Kochfeld kann der Stützträger dann an der Trägerplatte befestigt sein oder mit ihr verbunden sein, beispielsweise unlösbar bzw. nicht mehr zerstörungsfrei lösbar. Manche Verbindungen wie Schraubverbindungen odgl. weisen zwar den Vorteil auf, dass sie wieder lösbar sind, beispielsweise zur Reparatur oder zum Austausch. Eine unlösbare Verbindung weist dafür den Vorteil auf, dass sie sich im Betrieb nicht löst und somit dauerhafter bzw. sicherer ist. Häufig sind derartige unlösbare Verbindungen auch bei der Montage eines Kochfelds, also bei der Verbindung von Trägerplatte und Stützträger, leichter automatisiert herstellbar. Möglichkeiten hierfür werden nachfolgend noch näher erläutert.In an embodiment of the invention, the support carrier can be designed as an independent component produced separately from the carrier plate. In the finished hob, the support carrier can then be fastened to the carrier plate or connected to it, for example in a non-detachable manner or in a non-destructive manner. Some connections such as screw connections or the like. Although they have the advantage that they can be removed again, for example for repair or replacement. A non-detachable connection has the advantage that it does not detach during operation and is therefore more permanent or more secure. Frequently, such non-detachable connections can also be produced more easily in an automated manner when assembling a hob, that is to say when connecting the carrier plate and the support beam. Possibilities for this are explained in more detail below.
In weiterer Ausgestaltung der Erfindung kann der Stützträger an seinen beiden Endbereichen mit der Trägerplatte verbunden sein, insbesondere relativ nahe am jeweiligen äußeren Ende, beispielsweise mit einem Abstand von maximal 5 % oder 10 % der Länge des Stützträgers. Eine weitere Verbindung mit der Trägerplatte kann mindestens einmal in einem zentralen Bereich oder Mittelbereich des Stützträgers vorgesehen sein, der zwischen den Endbereichen liegt. So kann eine Dreipunkt-Befestigung erreicht werden, die vorteilhaft vor allem ein Durchbiegen der Trägerplatte in ihrem Mittelbereich zu vermeiden hilft. Eine Verbindung in einem Mittelbereich des Stützträgers bzw. der Trägerplatte miteinander kann einen Abstand zu den Enden des Stützträgers aufweisen, der mindestens 20 % bis 30 % der Länge des Stützträgers beträgt, wobei vorteilhaft der Abstand 30 % bis 45 % der Länge des Stützträgers beträgt. Des Weiteren ist es alternativ auch möglich, eine Verbindung zwischen Stützträger und Trägerplatte im Mittelbereich genau dort vorzusehen, wo die höchste Belastung bzw. Durchbiegung für die Trägerplatte zu erwarten ist und somit die maximale Stützung erfolgen sollte.In a further embodiment of the invention, the support beam can be connected to the support plate at its two end regions, in particular relatively close to the respective outer end, for example at a distance of a maximum of 5% or 10% of the length of the support beam. A further connection to the support plate can be provided at least once in a central area or middle area of the support beam, which lies between the end areas. In this way, a three-point fastening can be achieved which, above all, advantageously helps to avoid bending of the support plate in its central area. A connection in a central region of the support beam or the support plate with one another can have a distance to the ends of the support beam which is at least 20% to 30% of the length of the support beam, the distance advantageously being 30% to 45% of the length of the support beam. Furthermore, it is alternatively also possible to provide a connection between the support beam and the support plate in the central area exactly where the highest load or deflection is to be expected for the support plate and thus the maximum support should take place.
Eine Verbindung des Stützträgers mit der Trägerplatte in dem vorbeschriebenen Mittelbereich kann durch einen Halteabschnitt realisiert werden. Ein solcher Halteabschnitt kann von dem Stützträger abstehen, so dass zwischen diesem Halteabschnitt und dem sonstigen Stützträger ein länglicher schmaler Halteschlitz gebildet ist, vorzugsweise in etwa parallel zu dem Stützträger. Ein Abschnitt der Trägerplatte kann in diesen Halteschlitz eingreifen zur Verbindung und Halterung. Eine solche Befestigung kann zwar sehr leicht wieder gelöst werden, beispielsweise durch Bewegen des Stützträgers in seiner Längsrichtung bzw. in der Längsrichtung des Halteschlitzes. Wenn diese Bewegung jedoch durch die sonstige Verbindung zwischen Stützträger und Trägerplatte unterbunden ist, kann so ohne zusätzlichen Arbeitsaufwand eine stützende Verbindung zwischen Stützträger und Trägerplatte hergestellt werden, die zumindest in einer Richtung senkrecht zur Trägerplatte wirkt. Alternativ kann auch ein Halteabschnitt von der Trägerplatte abstehen, der in einen Bereich des Stützträgers eingreift.A connection of the support beam to the support plate in the above-described central region can be realized by a holding section. Such a holding section can protrude from the support beam, so that an elongated, narrow holding slot is formed between this holding section and the other support beam, preferably approximately parallel to the support beam. A section of the carrier plate can engage in this holding slot for connection and holding. Such a fastening can indeed be released again very easily, for example by moving the support beam in its longitudinal direction or in the longitudinal direction of the holding slot. However, if this movement is prevented by the other connection between the support beam and the carrier plate, a supporting connection between the support beam and the carrier plate can be established without additional work, which acts at least in one direction perpendicular to the carrier plate. Alternatively, a holding section which engages in a region of the support beam can also protrude from the carrier plate.
Der genannte Halteschlitz kann mit seiner Längsrichtung entweder parallel oder in einem sehr flachen Winkel zur Ebene der Kochfeldplatte verlaufen, welche vorteilhaft auch eine Ebene der Trägerplatte ist. Ein solcher Winkel kann zwischen 0° und maximal 10° liegen, insbesondere 0° betragen. Alternativ kann der Winkel zwar bewusst flach sein, aber nicht zu klein sein. Ein solcher Winkel kann zwischen 15° und 30° zur Ebene der Kochfeldplatte bzw. der Trägerplatte liegen. Dadurch kann ein Einfügen eines Abschnitts der Trägerplatte in den Halteschlitz erleichtert werden mit einer Bewegung, die schräg zur Ebene der Kochfeldplatte bzw. der Trägerplatte verläuft.Said holding slot can run with its longitudinal direction either parallel or at a very shallow angle to the plane of the hob plate, which is advantageously also a plane of the carrier plate. Such an angle can be between 0 ° and a maximum of 10 °, in particular 0 °. Alternatively, the angle can be deliberately flat, but not too small. Such an angle can be between 15 ° and 30 ° to the plane of the hob plate or the carrier plate. This makes it easier to insert a section of the carrier plate into the holding slot with a movement which runs obliquely to the plane of the hob plate or the carrier plate.
In weiterer Ausgestaltung der Erfindung ist es möglich, dass eine Befestigung des Stützträgers an der Trägerplatte als Verbindung durch Materialumformung erfolgt, was im Wesentlichen einer vorgenannten unlösbaren Verbindung entspricht. Möglichkeiten sind hier ein Vernieten als Alternative zu einem Verschrauben oder ein Verstemmen eines Befestigungsabschnitts, der insbesondere an dem Stützträger vorgesehen ist. Alternativ kann ein solcher Befestigungsabschnitt auch verbogen werden nach Art einer Biegelasche oder Haltelasche. Ein Vernieten kann einerseits mit einem separaten Niet zusätzlich zu dem Stützträger und der Trägerplatte erfolgen. Alternativ kann, wie auch beim Verstemmen, ein Befestigungsabschnitt am einen Teil die Ebene des anderen Teils durchgreifen, vorteilhaft durch eine entsprechend ausgebildete Öffnung im anderen Teil, und dann eben aufgeweitet oder verstemmt werden, um ein Lösen der Verbindung zu verhindern. Dann ist eine Art integrierter Niet vorgesehen.In a further refinement of the invention, it is possible for the support beam to be fastened to the carrier plate as a connection by material deformation, which essentially corresponds to an aforementioned non-detachable connection. Possibilities here are riveting as an alternative to screwing or caulking a fastening section which is provided in particular on the support beam. Alternatively, such a fastening section can also be bent in the manner of a flexible tab or a retaining tab. Riveting can be done on the one hand with a separate rivet in addition to the support beam and the support plate. Alternatively, as with caulking, a fastening section on one part can reach through the plane of the other part, advantageously through a correspondingly formed opening in the other part, and then widened or caulked to prevent the connection from loosening. Then some kind of integrated rivet is provided.
In Ausgestaltung der Erfindung ist es möglich, dass die Trägerplatte mindestens in einem Mittelbereich eine Öffnung aufweist, ggf. relativ groß. Eine solche Öffnung kann beispielsweise zum elektrischen Anschluss der Heizeinrichtungen in einem Bereich unterhalb der Trägerplatte vorgesehen sein, wie dies für Induktions-Kochfelder allgemein bekannt ist. Der Stützträger kann zumindest teilweise durch diese Öffnung hindurch verlaufen und dabei die Ebene der Trägerplatte im Bereich dieser Öffnung durchlaufen von dem Untergriff-Bereich in den Übergriff-Bereich oder andersherum. Dann muss keine separate Öffnung für den Stützträger durch die Trägerplatte hindurch hergestellt werden. Wenn der Stützträger diese Öffnung in etwa mittig durchläuft, kann die Öffnung noch komfortabel weiterhin auch für ihren eigentlichen Zweck genutzt werden, beispielsweise den vorgenannten elektrischen Anschluss. In weiterer Ausgestaltung der Erfindung ist es möglich, dass ein Rand der vorgenannten Öffnung als Abschnitt der Trägerplatte in einen vorbeschriebenen Halteschlitz im Stützträger eingreift, so dass der Halteabschnitt des Stützträgers darunter verläuft zur Verbindung. Dies reicht aus als Befestigung und somit Stützung der Trägerplatte in diesem Bereich bzw. im Mittelbereich der Trägerplatte.In an embodiment of the invention, it is possible that the carrier plate has an opening, possibly relatively large, at least in a central region. Such an opening can be provided, for example, for the electrical connection of the heating devices in an area below the carrier plate, as is generally known for induction hobs. The support beam can run at least partially through this opening and thereby pass through the plane of the carrier plate in the area of this opening from the under grip area into the over grip area or vice versa. Then there is no need to make a separate opening for the support beam through the support plate. If the support beam runs through this opening approximately in the middle, the opening can still comfortably be used for its actual purpose, for example the aforementioned electrical connection. In a further embodiment of the invention, it is possible that an edge of the aforementioned opening as a section of the carrier plate engages in a previously described holding slot in the support beam, so that the holding section of the support beam runs underneath for connection. This is sufficient to fasten and thus support the carrier plate in this area or in the central area of the carrier plate.
In nochmals weiterer Ausgestaltung der Erfindung ist es auch möglich, dass der Stützträger zwei Halteabschnitte mit jeweils einem Halteschlitz hin zum Stützträger aufweist, die dann auch in zueinander entgegengesetzten Richtungen verlaufen. In beide Halteschlitze kann jeweils ein Rand der Öffnung eingreifen. Dabei kann vorgesehen sein, dass gegenüberliegende Ränder der Öffnung in derartige Halteschlitze eingreifen. Da dies mit einer Linearbewegung des Stützträgers relativ zur Trägerplatte in der Regel nicht erreicht werden kann, kann der Stützträger nach Einführen der Halteabschnitte mit jeweils dem Halteschlitz in die Öffnung und durch anschließendes Verdrehen montiert werden. Beim Ansetzen kann der Stützträger so zur Öffnung verlaufen, dass er einen längeren Bereich dieser Öffnung überspannt, wobei durch Drehen oder eine entsprechende Montagebewegung die überspannte Länge der Öffnung kürzer wird und dabei ihre Ränder in die genannten Halteschlitze eingreifen.In yet another embodiment of the invention, it is also possible for the support beam to have two holding sections, each with a holding slot towards the support beam, which then also run in mutually opposite directions. One edge of the opening can engage in each of the two holding slots. It can be provided that opposite edges of the opening engage in such holding slots. Since this cannot usually be achieved with a linear movement of the support beam relative to the support plate, the support beam can be mounted after inserting the retaining sections with the retaining slot in each case into the opening and then rotating it. When attaching the support beam can so for The opening extends so that it spans a longer area of this opening, the spanned length of the opening becoming shorter by turning or a corresponding assembly movement and its edges thereby engaging in the aforementioned holding slots.
In vorteilhafter Ausgestaltung der Erfindung kann der Stützträger mit dem Untergriff-Bereich von oben her an der Trägerplatte befestigt bzw. damit verbunden sein. Mit dem Übergriff-Bereich kann er von unten her daran befestigt sein, also in beiden Bereichen jeweils von der anderen Seite. Dies ist besonders vorteilhaft möglich mit vorgenannten Verstemm-Abschnitten des Stützträgers, die als Befestigungsabschnitte von diesem abstehen und durch entsprechende Öffnungen bzw. Verstemm-Öffnungen in der Trägerplatte eingreifen. Ein Verstemmen erfolgt dann jeweils von der anderen Seite her, um den Stützträger an der Trägerplatte zu befestigen bzw. die beiden Teile zu verbinden. Ähnliches kann auch für ein Umbiegen eines solchen Befestigungsabschnitts gelten oder wenn dieser selbst als Vernietung verwendet wird. Es können auch Verschraubungen vorgesehen sein, wobei dann vorteilhaft in einem umgebogenen Abschnitt des Stützträgers ein Gewinde vorgesehen ist oder Schrauben als Blechschrauben durch die Trägerplatte hindurchgeführt sind und dann in dem Stützträger verschraubt sind. Vorteilhaft weist der Stützträger eine größere Dicke auf als die Trägerplatte, so dass ein Gewinde einer Schraube hier besser eingreifen kann.In an advantageous embodiment of the invention, the support beam can be fastened to the support plate with the grip area from above or connected to it. With the overlap area, it can be attached to it from below, that is, in both areas from the other side. This is particularly advantageously possible with the aforementioned caulking sections of the support beam, which protrude from this as fastening sections and engage in the support plate through corresponding openings or caulking openings. Caulking then takes place from the other side in order to fasten the support beam to the support plate or to connect the two parts. The same can also apply to bending such a fastening section or if this is used as a riveting itself. Screw connections can also be provided, in which case a thread is advantageously provided in a bent section of the support beam or screws are passed through the support plate as sheet metal screws and are then screwed into the support beam. The support bracket advantageously has a greater thickness than the support plate, so that a thread of a screw can engage better here.
In Ausgestaltung der Erfindung kann in einem vorderen Bereich auf der Trägerplatte eine Bedieneinrichtung angeordnet sein, die neben Steuerungsfunktionen vor allem Bedienelemente aufweist. Diese Bedienelemente können beispielsweise Berührsensoren aufweisen und an die Unterseite einer Kochfeldplatte angedrückt sein, wie dies aus dem Stand der Technik gut bekannt ist. In einem hinteren Bereich, der den größten Anteil der Fläche beträgt, können auf der Trägerplatte Heizeinrichtungen angeordnet sein, vorteilhaft Induktoren für ein Induktions-Koch-feld. Diese Heizeinrichtungen bedecken den größten Teil der Fläche der Trägerplatte, insbesondere mindestens 70% oder sogar 80%. Der Stützträger verläuft dann vorteilhaft im vorderen Bereich mit dem Untergriff-Bereich unterhalb der Trägerplatte. Im hinteren Bereich verläuft er mit dem Übergriff-Bereich oberhalb der Trägerplatte. Dabei kann der Stützträger in diesem hinteren Bereich zwischen benachbarten Heizeinrichtungen hindurch verlaufen. Wenn der Stützträger schmal ausgebildet ist und eher hoch, was vorteilhaft vorgesehen ist, damit er eine gewisse Höhe hat für eine Steifigkeit gegen Durchbiegen, braucht er nicht viel Platz und kann somit auch gut selbst zwischen benachbarten Heizeinrichtungen mit geringem Abstand zueinander hindurch verlaufen.In an embodiment of the invention, an operating device can be arranged in a front area on the carrier plate, which, in addition to control functions, primarily has operating elements. These operating elements can, for example, have touch sensors and can be pressed against the underside of a hob plate, as is well known from the prior art. In a rear area, which makes up the largest proportion of the area, heating devices can be arranged on the carrier plate, advantageously inductors for an induction cooking field. These heating devices cover most of the area of the carrier plate, in particular at least 70% or even 80%. The support beam then advantageously runs in the front area with the grip area below the support plate. In the rear area it runs with the overlap area above the carrier plate. In this case, the support beam can run in this rear area between adjacent heating devices. If the support beam is designed to be narrow and rather high, which is advantageously provided so that it has a certain height for rigidity against bending, it does not need much space and can therefore also run well even between adjacent heating devices at a small distance from one another.
Im vorderen Bereich mit der Bedieneinrichtung verläuft der Stützträger unterhalb der auf der Trägerplatte angeordneten Bedieneinrichtung, so dass diese nicht geteilt sein muss bzw. keinen Durchgang für die Stützträger aufweisen muss. So kann eine Bedieneinrichtung beispielsweise mit einer durchgehenden Leiterplatte ausgebildet sein, auf der dann elektrische Bauteile und insbesondere auch die Bedienelemente bzw. Berührungssensoren angeordnet sind. Die Anordnung des Stützträgers im hinteren Bereich oberhalb der Trägerplatte ist von Vorteil, da dann der Bereich unterhalb der Trägerplatte nicht durch den Stützträger beeinträchtigt wird. Insbesondere wenn das Kochfeld als vorgenanntes Induktions-Kochfeld ausgebildet ist, ist dies von Vorteil, da dann Leistungselektronik und sonstige Bauteile, die möglicherweise auch eine Kühlluftführung brauchen, ohne Beeinträchtigung darunter verbaut sein können.In the front area with the operating device, the support beam runs below the operating device arranged on the carrier plate, so that it does not have to be divided or does not have to have a passage for the support beam. For example, an operating device can be designed with a continuous printed circuit board on which electrical components and in particular also the operating elements or touch sensors are then arranged. The arrangement of the support beam in the rear area above the carrier plate is advantageous since the area below the carrier plate is then not impaired by the support beam. In particular, if the hob is designed as the aforementioned induction hob, this is advantageous because power electronics and other components that may also need a cooling air duct can then be installed underneath without impairment.
Grundsätzlich ist eine Verlaufsrichtung des Stützträgers relativ zu dem Kochfeld bzw. der Trägerplatte egal, es kommt wesentlich darauf an, dass der Stützträger einen Mittelbereich der Trägerplatte überquert, der möglichst gut gegen Durchbiegen abgestützt sein sollte. Wie zuvor bezüglich der Bedieneinrichtung und der Heizeinrichtungen erläutert wurde, wird ein Verlauf des Stützträgers in einer Richtung des Kochfelds von hinten nach vorne bevorzugt, da dann die vorteilhafte Aufteilung von Übergriff-Bereich und Untergriff-Bereich möglich ist. Dabei kann hier in einer ersten Ausgestaltung der Erfindung ein einziger Stützträger vorgesehen sein, der über den Mittelbereich und vorzugsweise über einen Mittelpunkt der Fläche der Trägerplatte verläuft zu deren Abstützung. Dies wird auch bei Kochfeldern als vorteilhaft angesehen, die sozusagen eine Art spiegelsymmetrische Aufteilung der Heizeinrichtungen zwischen links und rechts aufweisen, so dass der Stützträger gut zwischen diesen verlaufen kann.In principle, the direction of the support beam relative to the hob or the support plate is irrelevant, it is essential that the support beam crosses a central area of the support plate that should be supported as well as possible against bending. As has been explained above with regard to the operating device and the heating devices, a course of the support beam in one direction of the hob from the back to the front is preferred, since the advantageous division of the overlapping area and undergripping area is then possible. Here, in a first embodiment of the invention, a single support beam can be provided, which runs over the central region and preferably over a center point of the surface of the support plate to support it. This is also considered to be advantageous in the case of hobs which have, so to speak, a kind of mirror-symmetrical division of the heating devices between left and right, so that the support beam can easily run between them.
In einer zweiten Ausgestaltung der Erfindung können, vor allem bei einem überbreiten Kochfeld, drei Heizeinrichtungen bzw. drei in etwa gleich große Gruppen von Heizeinrichtungen nebeneinander vorgesehen sein. Hier können dann genau zwei Stützträger vorgesehen sein, die parallel zueinander von vorne nach hinten verlaufen und jeweils zwischen benachbarten Gruppen von Heizeinrichtungen hindurch verlaufen. So können auch Trägerplatten von solchen breiten Kochfeldern, die üblicherweise eine Breite von etwa 90 cm aufweisen, gut gegen Durchbiegen abgestützt werden.In a second embodiment of the invention, especially in the case of an extra-wide hob, three heating devices or three groups of heating devices of approximately the same size can be provided next to one another. Exactly two support beams can then be provided here, which run parallel to one another from the front to the rear and each run through between adjacent groups of heating devices. In this way, carrier plates of such wide hobs, which usually have a width of about 90 cm, can also be well supported against bending.
In einer Weiterbildung der Erfindung kann vorgesehen sein, dass der Stützträger aus einem Flachmaterial besteht bzw. hergestellt ist. Eine Dicke des Flachmaterials kann 1 mm bis 5 mm betragen, vorteilhaft etwa 2 mm bis 5 mm. Ein solcher relativ dünner Stützträger kann beispielsweise aus Metall hergestellt werden, insbesondere aus Aluminium. Er kann nur ein oder zwei rechtwinklig abstehende Befestigungsabschnitte aufweisen, die an der Trägerplatte anliegen. Sie sollen sicherstellen, dass der Stützträger mit seinem länglichen Querschnitt hochkant und in etwa rechtwinklig zur Fläche der Trägerplatte bzw. zur Trägerplatte selbst steht und somit eine große Steifigkeit gegen deren Durchbiegen aufweist. Sind zwei derartige abstehende Befestigungsabschnitte vorgesehen, so kann besonders vorteilhaft vorgesehen sein, dass sie in unterschiedliche Richtungen von dem Stützträger abstehen, um ein Verkippen in beide Richtungen zuverlässig verhindern zu können. In einer möglichen Weiterbildung der Erfindung können diese Befestigungsabschnitte auch dazu dienen, den Stützträger an der Trägerplatte zu befestigen, beispielsweise durch hindurchgeführte Schrauben oder Nieten, wie es zuvor allgemein erläutert worden ist. Alternativ können sie an einem äußeren Ende nochmals abgewinkelte Befestigungslaschen aufweisen, die wiederum etwa senkrecht zur Fläche der Trägerplatte verlaufen. Diese können dann zum vorbeschriebenen Vernieten, Verstemmen oder Verbiegen dienen.In a further development of the invention it can be provided that the support beam consists or is made of a flat material. A thickness of the flat material can be 1 mm to 5 mm, advantageously about 2 mm to 5 mm. Such a relatively thin support beam can for example be made of metal, in particular aluminum. It can have only one or two fastening sections protruding at right angles, which are attached to the carrier plate issue. They are intended to ensure that the support beam with its elongated cross-section is upright and approximately at right angles to the surface of the carrier plate or to the carrier plate itself and thus has great rigidity against bending. If two such protruding fastening sections are provided, it can be provided in a particularly advantageous manner that they protrude from the support beam in different directions in order to be able to reliably prevent tilting in both directions. In a possible further development of the invention, these fastening sections can also serve to fasten the support beam to the carrier plate, for example by passing screws or rivets, as has been generally explained above. Alternatively, they can have fastening tabs angled again at an outer end, which in turn run approximately perpendicular to the surface of the carrier plate. These can then be used for the riveting, caulking or bending described above.
Ein flacher Stützträger, der in seinem Profil im Wesentlichen senkrecht zu der Oberfläche der Trägerplatte steht, kann vorteilhaft an der Trägerplatte entlangverlaufen oder zumindest in einem größeren Bereich seiner Länge mit der Trägerplatte kontaktiert sein bzw. diese berühren, insbesondere mit einer Kante. Insbesondere im Untergriff-Bereich wird dies vorgesehen, um die Trägerplatte so sehr einfach gegen Durchbiegen nach unten abzustützen.A flat support beam, the profile of which is essentially perpendicular to the surface of the support plate, can advantageously run along the support plate or at least be in contact with or touch the support plate over a larger area of its length, in particular with an edge. In particular, this is provided in the underhand area so that the carrier plate can be supported very easily against bending downwards.
Eine Höhe des Stützträgers sollte maximal 2 cm bis 3 cm betragen, vorteilhaft 1 cm bis 1,5 cm, so dass er auch nur um maximal dieses Maß über die Fläche der Trägerplatte nach oben steht mit dem Übergriff-Bereich oder nach unten steht mit dem Untergriff-Bereich. Da Kochfelder, insbesondere vorgenannte Induktions-Kochfelder, möglichst flach gebaut werden sollen, sollte die Bauhöhe durch den Stützträger nicht unnötig und am besten gar nicht vergrößert werden. Somit sollte der Stützträger weder mit dem Übergriff-Bereich die Heizeinrichtungen nach oben überragen noch mit dem Untergriff-Bereich eine Leistungselektronik odgl. für die Heizeinrichtungen nach unten unterragen.A height of the support beam should be a maximum of 2 cm to 3 cm, advantageously 1 cm to 1.5 cm, so that it is only by a maximum of this amount above the surface of the carrier plate upwards with the overlap area or downwards with the Underhand area. Since hobs, in particular the aforementioned induction hobs, should be built as flat as possible, the structural height should not be increased unnecessarily by the support beam, and ideally not at all. Thus, the support beam should neither protrude above the heating devices with the overlap area nor power electronics or the like with the undergrip area. for the heating devices below.
Ausführungsbeispiele der Erfindung sind in den Zeichnungen schematisch dargestellt und werden im Folgenden näher erläutert. In den Zeichnungen zeigen:
- Fig. 1
- eine Seitenansicht einer ersten Ausgestaltung eines Stützträgers mit unten angeformtem Halteabschnitt,
- Fig. 2
- eine Draufsicht auf den Stützträger aus
Fig. 1 , - Fig. 3
- einen seitlichen Schnitt durch den Stützträger aus
Fig. 1 befestigt an einer Trägerplatte, - Fig. 4
- eine Draufsicht auf die Anordnung aus
Fig. 3 , - Fig. 5
- eine Schrägansicht auf die Anordnung aus
Fig. 4 , - Fig. 6
- eine Schnittdarstellung durch ein erfindungsgemäßes Kochfeld mit Trägerplatte und Stützträger entsprechend
Fig. 3 , - Fig. 7
- eine alternative Ausgestaltung eines Stützträgers in Seitenansicht,
- Fig. 8
- eine Draufsicht auf den Stützträger aus
Fig. 7 , - Fig. 9
- eine Anordnung eines Stützträgers aus
Fig. 7 an einer Trägerplatte ähnlichFig. 3 , - Fig. 10
- eine Vergrößerung einer Nietverbindung zwischen Stützträger und Trägerplatte,
- Fig. 11
- einen Schnitt durch ein zweites erfindungsgemäßes Kochfeld mit einer Trägerplatte und einem Stützträger entsprechend
Fig. 9 , - Fig. 12
- eine Draufsicht auf das Kochfeld entsprechend
Fig. 11 und - Fig. 13
- eine Schrägansicht auf das Kochfeld entsprechend
Fig. 12 .
- Fig. 1
- a side view of a first embodiment of a support beam with a holding portion molded on at the bottom,
- Fig. 2
- a plan view of the support beam
Fig. 1 , - Fig. 3
- a side cut through the support beam
Fig. 1 attached to a carrier plate, - Fig. 4
- a plan view of the arrangement
Fig. 3 , - Fig. 5
- an oblique view of the arrangement
Fig. 4 , - Fig. 6
- a sectional view through an inventive hob with a support plate and support bracket accordingly
Fig. 3 , - Fig. 7
- an alternative embodiment of a support beam in side view,
- Fig. 8
- a plan view of the support beam
Fig. 7 , - Fig. 9
- an arrangement of a support beam
Fig. 7 similar to a carrier plateFig. 3 , - Fig. 10
- an enlargement of a riveted connection between support beam and support plate,
- Fig. 11
- a section through a second hob according to the invention with a carrier plate and a support bracket accordingly
Fig. 9 , - Fig. 12
- a top view of the hob accordingly
Fig. 11 and - Fig. 13
- an oblique view of the hob accordingly
Fig. 12 .
In den
Etwas links von einer Mitte des Stützträgers 11, aber noch in einem Mittelbereich, ist nach unten abstehend ein Halteabschnitt 21 vorgesehen, der zum restlichen Stützträger 11 einen Halteschlitz 22 bildet. Der Halteschlitz 22 verläuft erkennbar parallel zum Stützträger 11 im Übergriff-Bereich 15.Somewhat to the left of a center of the
Die Befestigungsabschnitte 19 sind in unterschiedliche Richtungen vom Stützträger 11 abgewinkelt, damit eine verkippfeste Verbindung mit einer Trägerplatte ermöglicht ist bzw. der Stützträger 11 rechtwinklig dazu stehen kann.The
Aus den
Der Stützträger 11 verläuft mit dem Untergriff-Bereich 13 unterhalb der Trägerplatte 24 und mit dem Übergriff-Bereich 25 oberhalb davon. In beiden Bereichen liegt er an der Trägerplatte 14 direkt an, was vor allem für die Stützfunktion im Untergriff-Bereich 13 bedeutsam ist. Der Stützträger 11 kann entweder nur durch die rechteckige Öffnung 26 von unten nach oben verlaufen oder, wie hier vorgesehen ist, an einem Durchgangsschlitz 27. Dieser Durchgangsschlitz 27 erstreckt sich von dem rechten Rand der Öffnung 26. Dadurch ist es möglich, dass der Stützträger 11 schon etwas früher vom Untergriff-Bereich 13 in den Übergriff-Bereich 15 sozusagen übergeht und oberhalb der Trägerplatte 24 verläuft.The
Die Befestigung des Stützträgers 11 an der Trägerplatte 24 erfolgt durch Schrauben 29, die einen Gewindeeinschnitt in den Befestigungsabschnitten 19 des Stützträgers 11 aufweisen. Deswegen ist die Schraube 29 für den Befestigungsabschnitt 19 des Untergriff-Bereichs 13 von oben her geführt und liegt sozusagen auf der Trägerplatte 24, während die Schraube 29 für den Befestigungsabschnitt 19 des Übergriff-Bereichs 15 von unten nach oben verläuft. Anstelle solcher Schrauben 29 könnten auch Niete oder sonstige formschlüssige Verbindungselemente verwendet werden.The
Eine weitere Befestigung im Mittelbereich erfolgt dadurch, dass der Halteabschnitt 21 unter den linken Rand der Öffnung 26 greift derart, dass dieser Rand in den Halteschlitz 22 eingreift. Dadurch ist eine einfache kraftschlüssige Befestigung möglich, die verhindert, dass der Mittelbereich der Trägerplatte 24 nach unten durchgebogen wird.A further fastening in the central area takes place in that the holding
Aus der Darstellung der
Aus der Draufsicht der
Im in der
In der Schrägdarstellung der
In den
Im Untergriff-Bereich 113 werden keine Spreizlaschen 120 odgl. zur Befestigung benötigt, da die Trägerplatte 124 ja im Untergriff-Bereich 113 oben auf dem Stützträger 111 aufliegt und von diesem so gestützt wird.In the under
Die Schnittdarstellung eines Kochfelds 133 gemäß
Anhand der
Gerade auch aus der Schrägdarstellung der
Im hinteren Bereich des Kochfelds 133 bzw. im Übergriff-Bereich 115 des Stützträgers 111 ist dagegen, wie die Schnittdarstellung der
Claims (15)
- Cooktop (33, 133), comprising:- a cooktop plate (34),- heating devices (140) beneath the cooktop plate (34),- a carrier plate (24, 124) which supports the heating devices (140), wherein the carrier plate has a surface area that corresponds to at least 80% of the surface area of the cooktop plate (34),- a supporting carrier (11, 111) having an elongated shape, with the length thereof spanning at least 80% of the extension of the cooktop plate (34) in said direction, wherein the supporting carrier (11, 111) is fastened to the carrier plate (24, 124),characterized in that the supporting carrier (11, 111):- runs beneath the carrier plate (24, 124) with a region for engagement from below (13, 113) and runs above the carrier plate with another region for engagement from above (15, 115),- penetrates the surface area of the carrier plate (24, 124) from bottom to top at least once.
- Cooktop according to claim 1, characterized in that the supporting carrier (11, 111) is produced separately from the carrier plate (24, 124) as an independent component, and preferably is captively connected to the carrier plate in the finished cooktop (33, 133).
- Cooktop according to claim 1 or 2, characterized in that the supporting carrier (11, 111) is connected to the carrier plate (24, 124) at both of its end regions and at least once in a middle region between the end regions as fastening, wherein preferably a connection in the middle region of the supporting carrier (11, 111) is located at a distance from the ends of the supporting carrier of at least 20% to 30% of the length of the supporting carrier.
- Cooktop according to any of the preceding claims, characterized in that the supporting carrier (11, 111) is connected to the carrier plate (24, 124) in a middle region by a retaining section (21), wherein the retaining section protrudes from the supporting carrier so that a retaining slot (22) is formed between retaining section and supporting carrier, wherein a section of the supporting plate (24, 124) engages into the retaining slot (22).
- Cooktop according to claim 4, characterized in that the retaining slot (22) has an angle of from 0° to 10° in relation to a plane of the cooktop plate (34).
- Cooktop according to any of the preceding claims, characterized in that the supporting carrier (111) is fastened to the carrier plate (124) by material deformation, preferably by riveting, caulking or bending of a fastening section (120) of the supporting carrier.
- Cooktop according to any of the preceding claims, characterized in that the carrier plate (24, 124) has an opening (27, 127) in a middle region and the supporting carrier (11, 111) runs through this opening, wherein, in the process, the supporting carrier traverses through the plane of the carrier plate in the region of this opening from the region for engagement from below (13, 113) into the region for engagement from above (15, 115).
- Cooktop according to claim 7, characterized in that a rim of the opening (27) engages into a retaining slot (22) according to claim 4 or 5 as a section of the carrier plate (24).
- Cooktop according to claim 7 or 8, characterized in that the supporting carrier has two retaining sections, each with a retaining slot in the direction of the supporting carrier, and a respective rim of the opening engages into the two retaining slots.
- Cooktop according to any of the preceding claims, characterized in that the supporting carrier (11, 111) is fastened to the carrier plate (24, 124) from above in the region for engagement from below (13, 113) and from below in the region for engagement from above (15, 115), wherein preferably caulking sections (120) of the supporting carrier (111) protrude from said supporting carrier as fastening sections and engage in the carrier plate (124) through corresponding caulking openings and are then caulked from the other side for the purpose of fastening the supporting carrier to the carrier plate.
- Cooktop according to any of the preceding claims, characterized in that, on the carrier plate (24, 124), an operator control device (35, 135) is arranged in a front region and heating devices (140) are arranged in a rear region, wherein the supporting carrier (11, 111) runs beneath the carrier plate in the front region by way of the region of engagement from below (13, 113) and runs above the carrier plate in the rear region by way of the region for engagement from above (15, 115), wherein preferably the supporting carrier (111) runs through between adjacent heating devices (140) in the rear region.
- Cooktop according to any of the preceding claims, characterized in that the supporting carrier (11, 111) runs in a direction of the cooktop (33, 133) from the rear to the front, wherein preferably one single supporting carrier is provided, or in total precisely two supporting carriers running in parallel are provided.
- Cooktop according to any of the preceding claims, characterized in that the supporting carrier (11, 111) is composed of a flat material, in particular having a thickness of from 1 mm to 5 mm, wherein preferably the supporting carrier is flat and the plane of said supporting carrier has only one or two supporting sections (19) which protrude at right angles, for bearing against the carrier plate (24, 124).
- Cooktop according to any of the preceding claims, characterized in that the supporting carrier (111) is flat and the profile of said supporting carrier is substantially perpendicular to the surface of the carrier plate (124) along which it runs, or is perpendicular to the cooktop plate (34).
- Cooktop according to any of the preceding claims, characterized in that the supporting carrier (11, 111) has a height of at most 2 cm or 3 cm over its course, in particular 1 cm to 1.5 cm, wherein preferably the supporting carrier does not protrude vertically above the heating devices (140) in the region between said heating devices.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL18161499T PL3379900T3 (en) | 2017-03-24 | 2018-03-13 | Hotplate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017205061.6A DE102017205061A1 (en) | 2017-03-24 | 2017-03-24 | hob |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3379900A1 EP3379900A1 (en) | 2018-09-26 |
EP3379900B1 true EP3379900B1 (en) | 2020-10-28 |
Family
ID=61628222
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP18161499.1A Active EP3379900B1 (en) | 2017-03-24 | 2018-03-13 | Hotplate |
Country Status (5)
Country | Link |
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EP (1) | EP3379900B1 (en) |
KR (1) | KR102490361B1 (en) |
DE (1) | DE102017205061A1 (en) |
ES (1) | ES2845523T3 (en) |
PL (1) | PL3379900T3 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019206476A1 (en) | 2019-05-06 | 2020-11-12 | E.G.O. Elektro-Gerätebau GmbH | Hob with a flat support plate for heating devices and a method for producing such a support plate |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3825697B2 (en) * | 2002-01-24 | 2006-09-27 | 三洋電機株式会社 | Serving cart |
DE202008016268U1 (en) | 2008-12-09 | 2009-03-12 | BSH Bosch und Siemens Hausgeräte GmbH | induction heater |
DE202009000991U1 (en) * | 2009-01-27 | 2009-04-02 | BSH Bosch und Siemens Hausgeräte GmbH | Hob with a mounting frame and a metal support |
WO2012105235A1 (en) * | 2011-01-31 | 2012-08-09 | パナソニック株式会社 | Induction heating cooker |
DE102012219265A1 (en) * | 2011-11-16 | 2013-05-16 | BSH Bosch und Siemens Hausgeräte GmbH | Home appliance device |
DE102013107089B4 (en) * | 2013-07-05 | 2023-02-09 | Miele & Cie. Kg | induction hob |
WO2017020964A1 (en) * | 2015-08-06 | 2017-02-09 | Arcelik Anonim Sirketi | Improved mounting assembly for use in a cooking appliance |
-
2017
- 2017-03-24 DE DE102017205061.6A patent/DE102017205061A1/en not_active Ceased
-
2018
- 2018-03-13 ES ES18161499T patent/ES2845523T3/en active Active
- 2018-03-13 PL PL18161499T patent/PL3379900T3/en unknown
- 2018-03-13 EP EP18161499.1A patent/EP3379900B1/en active Active
- 2018-03-22 KR KR1020180033092A patent/KR102490361B1/en active IP Right Grant
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Also Published As
Publication number | Publication date |
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DE102017205061A1 (en) | 2018-09-27 |
KR20180108486A (en) | 2018-10-04 |
PL3379900T3 (en) | 2021-08-02 |
EP3379900A1 (en) | 2018-09-26 |
KR102490361B1 (en) | 2023-01-18 |
ES2845523T3 (en) | 2021-07-27 |
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