EP4025834A1

EP4025834A1 - Cooktop device

Info

Publication number: EP4025834A1
Application number: EP20757926.9A
Authority: EP
Inventors: Patricia GOMEZ BACHILLER; Oscar Gracia Campos; Damaso Martin Gomez; Pilar Perez Cabeza; Jesús Ricardo Ruiz Gracia; Noelia Vela Pardos
Original assignee: BSH Hausgeraete GmbH
Current assignee: BSH Hausgeraete GmbH
Priority date: 2019-09-06
Filing date: 2020-08-25
Publication date: 2022-07-13
Also published as: US20220316713A1; WO2021043625A1

Abstract

The aim of the invention is to provide a device of the type in question having improved properties with regard to lighting. This aim is achieved, according to the invention, by a cooktop device (10a), in particular an induction cooktop device, comprising at least one plate unit (12a), which plate unit has: at least one plate main body (14a), which has an at least substantially smooth surface in at least one surface portion (18a) on at least one plate side (16a); at least one first layer unit (20a), which is arranged in at least one first sub-region (22a) of the surface portion (18a) and is at least substantially non-transparent; and at least one second layer unit (24a), which is arranged in at least one second sub-region (26a) of the surface portion (18a) and is provided for scattering light.

Description

Hob device

The invention relates to a hob device according to claim 1.

A hob which has a plate unit with a plate base body is already known from the prior art. On a plate side of the plate base body, in a first partial area of a surface section of the plate side, in an assembled state, a first layer unit is arranged, which is designed to be non-transparent. In a mounted state, a second layer unit is arranged in a second partial area of the surface section, which is transparent. In an installation position, a light source is arranged below the second sub-area, which light source provides light in an operating state. The second sub-area allows the light provided by the light source to pass unhindered in the operating state, as a result of which an operator above the plate unit can perceive the light.

The object of the invention is in particular, but not limited to, to provide a device of the generic type with improved properties with regard to lighting. The object is achieved according to the invention by the features of claim 1, while advantageous configurations and developments of the invention can be found in the subclaims.

A hob device, in particular an induction hob device, is proposed with at least one plate unit which has at least one plate base body which has an at least substantially smooth surface in at least one surface section on at least one plate side, and which has at least one first layer unit, which in at least one first sub-area of the surface section is arranged and which is at least substantially non-transparent, and which has at least one second layer unit, which is arranged in at least one, advantageously adjoining the first sub-area, second sub-area of the surface section and which is provided to scatter light.

Optimized lighting can in particular be achieved by such a configuration. For example by the second layer unit and / or by the at least an essentially smooth surface, optimized lighting properties and / or homogeneous lighting can advantageously be provided. The optimized lighting properties could, for example, have targeted and / or homogeneous lighting and, for example, be provided for lighting at least one symbol. Afterglow, which could result, for example, at least partially from a reflection on the plate side, and / or looking into the interior of a hob can in particular be avoided. For example, due to the at least substantially smooth surface, in particular little light scattering and / or light influence can be achieved by the surface section, whereby, for example, optimized lighting properties and / or an optimized external appearance can be provided. The second layer unit, for example, can in particular avoid a hotspot effect, which could be caused, for example, by special light sources such as LEDs, in particular while avoiding additional components.

A “hob device”, advantageously an “induction hob device”, should be understood to mean in particular at least a part, in particular a subassembly, of a hob, advantageously an induction hob.

A “plate unit” is to be understood in particular as a unit which has at least one longitudinal extension and at least one transverse extension and at least one thickness that is significantly smaller than the longitudinal extension and than the transverse extension. For example, the longitudinal extension and / or the transverse extension could, for example in each case, at least twice, in particular at least 5 times, advantageously at least 8 times, particularly advantageously at least 12 times, preferably 20 times and particularly preferably at least 50 times as large be like the fat one. When viewed perpendicularly onto a main plane of extent of the plate unit, the plate unit could, for example, have an oval-like and / or circular and / or n-corner-like shape. When viewed perpendicularly onto a main plane of extent of the plate unit, the plate unit advantageously has a rectangular and / or square shape.

A “longitudinal extension” of an object is to be understood to mean, in particular, an extension of the object along a longitudinal extension direction of the object. Under an “extension” of an object is to be understood in particular as a maximum distance between two points of a perpendicular projection of the object onto a plane. A “direction of longitudinal extent” of an object is to be understood as meaning, in particular, a direction which is oriented parallel to a longest side of a smallest imaginary geometric cuboid which just completely surrounds the object. A “transverse extension” of an object is to be understood in particular to mean an extension of the object along a transverse extension direction of the object. A “transverse direction of extent” of an object is to be understood to mean, in particular, a direction which is oriented parallel to a second longest side of a smallest imaginary geometric cuboid which just completely surrounds the object. A “thickness” of an object is to be understood in particular as an extension of the object along a thickness direction of the object. A “thickness direction” of an object is to be understood as meaning, in particular, a direction which is oriented parallel to a smallest side of a smallest imaginary geometric cuboid which just completely encloses the object.

A thickness of an object could, for example, be identical to a material thickness of the object. A thickness of an object is advantageously aligned perpendicular to a longitudinal extension of the object and to a transverse extension of the object. A longitudinal extension of an object and a transverse extension of the object are advantageously aligned perpendicular to one another.

A “main extension plane” of a structural unit is to be understood as meaning, in particular, a plane which is parallel to a largest side surface of a smallest imaginary cuboid, which just completely encloses the structural unit, and advantageously runs through the center of the cuboid.

A “plate base body” of the plate unit is to be understood as meaning, in particular, a unit which at least to a large extent defines and / or characterizes an external shape of the plate unit and / or which has at least a large part of a mass of the plate unit and / or a volume of the plate unit.

“At least to a large extent” should in particular include a proportion, in particular a mass proportion and / or a volume proportion and / or a proportion of a number, of at least 70%, in particular of at least 80%, advantageously of at least 90% and preferably of at least 95 % can be understood. The plate side of the plate base body is advantageously aligned at least substantially parallel to a main plane of extent of the plate base body. In an installation position, the plate side could, for example, form a side of the plate base body facing an operator and / or a visible side of the plate base body. In an installation position, the plate side could advantageously form a side of the plate base body facing away from an operator and / or a rear side of the plate base body. “At least substantially parallel” is to be understood as meaning, in particular, an alignment of a direction relative to a reference direction, advantageously in a plane, the direction having a deviation from the reference direction, for example a maximum of 8 °, advantageously a maximum of 5 ° and particularly advantageously a maximum of 2 ° .

For example, the surface section could extend over a proportion of a maximum of 60%, in particular a maximum of 50%, advantageously a maximum of 40%, particularly advantageously a maximum of 30%, preferably a maximum of 20% and particularly preferably a maximum of 10% of a surface extension of the plate base body on the Extend the plate side. The surface section particularly advantageously extends over at least a large part of a surface extension of the plate base body on the plate side. The surface section extends, for example, over a proportion of at least 65%, in particular of at least 75%, advantageously of at least 80%, particularly advantageously of at least 85%, preferably of at least 90% and particularly preferably of at least 95% of a surface extension of the plate base body on the Plate side.

An “at least substantially smooth” surface should be understood to mean, in particular, a surface which has a roughness of a maximum of 300 nm, in particular a maximum of 200 nm, advantageously of a maximum of 150 nm, particularly advantageously of a maximum of 120 nm, preferably of a maximum of 100 nm and especially preferably has a maximum of 80 nm. For example, a roughness distance, which defines a distance between two maximally distant points on the surface of the plate base body and which is aligned at least substantially parallel to a thickness of the plate base body, could correspond to a value of the roughness. A roughness of the plate base body can advantageously be understood to mean an unevenness of a surface height of the plate base body. The unevenness of the The surface height of the plate base body could, for example, correspond to a value for the roughness.

The hob device advantageously has at least one light source which is provided for providing light. In an installation position, the light source is advantageously arranged on a side of the plate unit facing away from an operator. In a mounted state, the light source is advantageously arranged on a side of the plate unit facing the plate side. “Richt”, in particular visible light, should be understood to mean in particular electromagnetic radiation with a wavelength of at least 380 nm and a maximum of 750 nm. The light is advantageously designed as visible light. For example, in addition to visible light, the light source could for example be provided for providing ultraviolet radiation and / or infrared radiation.

A “layer unit” is to be understood in particular as a unit which has at least one layer. The layer unit and / or the layer advantageously has a material thickness which is significantly smaller than a thickness and / or than a material thickness of at least one base unit, such as the plate base body, on which the layer unit and / or the layer is arranged in an assembled state . The base unit is advantageously a unit on which the layer unit is arranged in an assembled state. The base unit is particularly advantageously formed by the plate base body. For example, a thickness of the base unit and / or the plate base body could be at least 2 times, in particular at least 5 times, advantageously at least 8 times, particularly advantageously at least 12 times, preferably 20 times and particularly preferably at least 50 times as great as a material thickness of the layer unit and / or the layer which, in an assembled state, is arranged, for example, on the base unit and / or on the plate base body.

For example, the layer unit and / or the layer could be attached indirectly to the plate base body, at least in sections. The layer unit and / or the layer could advantageously be attached directly to the plate base body, at least in sections. The layer unit and / or the layer could advantageously be designed to be self-adhesive. For example, the layer unit could have at least one and, for example, exactly one layer. The layer unit could, for example, have at least two, advantageously at least three, particularly advantageously at least four, preferably at least five and particularly preferably several layers. A value of a material thickness of the layer unit could advantageously correspond at least essentially to a value of a sum of material thicknesses of individual layers of the layer unit, advantageously all layers of the layer unit. In this context, “at least essentially” can advantageously be understood to mean that a deviation from a predefined value is in particular a maximum of 25%, preferably a maximum of 10% and particularly preferably a maximum of 5% of the predefined value.

The phrase that an object is “at least substantially non-transparent” should be understood in particular to mean that the object is non-transparent for at least a large part of a wavelength range of electromagnetic radiation and / or visible light and could, for example, be partially transparent for at least one wavelength . For example, at least one layer of the layer unit could be at least essentially non-transparent. The first layer unit is preferably non-transparent. For example, in the case of at least one layer of the first layer unit, which could be at least substantially non-transparent, the first layer unit could have at least two, in particular at least three, advantageously at least four, preferably at least five and particularly preferably several layers in order to thereby in particular provide partial transparency prevent and / or ensure a lack of transparency.

The first layer unit is provided in particular to prevent light from escaping from the interior of the hob, at least substantially and advantageously at least up to a radiation density of at least 480 W / m ² . In particular, the first layer unit is provided to prevent, in particular, at least substantially, and advantageously from looking into the interior of the hob.

For example, the second layer unit, in particular light emitted by the light source, scatters over a solid angle of at least TT, in particular of at least 3TT / 2 and advantageously of at least 2TT with respect to at least one, in particular, any point on a surface of the second layer unit facing the plate base body in an assembled state . The second advantageously scatters Layer unit, in particular light emitted by the light source, with regard to at least one, in particular, any point on a surface of the second layer unit facing the plate base body in an assembled state in at least substantially an entire hemisphere facing the plate base body. In particular, particularly diffuse, well-distributed light can thereby be provided, as a result of which, in particular, particularly advantageous lighting can be achieved.

“Provided” is to be understood in particular as specifically programmed, designed and / or equipped. The fact that an object is provided for a specific function is to be understood in particular to mean that the object fulfills and / or executes this specific function in at least one application and / or operating state.

It is further proposed that, when viewed perpendicularly onto a main plane of extent of the plate unit, the first partial area extends over at least a large part of the plate base body. When viewed perpendicularly onto a main plane of extent of the plate unit, the first partial area could, for example, cover a proportion of at least 60%, in particular at least 70%, advantageously at least 80%, particularly advantageously at least 85%, preferably at least 90% and particularly preferred extend by at least 95% of a surface extension of the surface section and advantageously the plate side. In this way, in particular, a view into the interior of the hob can be prevented, advantageously with structurally simple means. In particular, simple assembly and / or manufacture can be made possible, as a result of which, for example, low costs can be achieved.

The first layer unit could, for example, have a thickness which could at least essentially correspond to a thickness of the second layer unit. For example, as an alternative, the first layer unit could for example have a thickness which could be smaller than a thickness of the second layer unit. The first layer unit preferably has a thickness which is greater than a thickness of the second layer unit. For example, the thickness of the first layer unit could be at least 1.1 times, in particular at least 1.3 times, advantageously at least 1.6 times, particularly advantageously at least 2 times, preferably at least 2.4 times and particularly preferably at least 2 times. 7 times the thickness of the second layer unit. The thickness of the first layer unit could, for example, have a value of a maximum of 100 μm, in particular a maximum of 80 μm, advantageously a maximum of 60 μm, particularly advantageously a maximum of 50 μm, preferably a maximum of 40 μm and particularly preferably a maximum of 30 μm. The thickness of the second layer unit could, for example, have a value of a maximum of 50 μm, in particular a maximum of 40 μm, advantageously a maximum of 30 μm, particularly advantageously a maximum of 20 μm, preferably a maximum of 15 μm and particularly preferably a maximum of 12 μm. In this way, in particular, an optimized construction and / or a high degree of flexibility, for example when choosing a thickness for the first layer unit, can be achieved.

It is further proposed that the plate base body has an at least substantially smooth surface in at least one further surface section on at least one further plate side, which is arranged opposite the plate side, advantageously with regard to a thickness of the plate base body. The further plate side of the plate base body is advantageously aligned at least substantially parallel to a main plane of extent of the plate base body. In an installation position, the further plate side could, for example, form a side of the plate base body facing away from an operator and / or a rear side of the plate base body. In an installation position, the further plate side could advantageously form a side of the plate base body facing an operator and / or a visible side of the plate base body. The light source is advantageously arranged in an installation position on a side of the plate base body facing away from the further plate side. For example, the further surface section could extend over a proportion of a maximum of 60%, in particular a maximum of 50%, advantageously a maximum of 40%, particularly advantageously a maximum of 30%, preferably a maximum of 20% and particularly preferably a maximum of 10% of a surface extension of the plate base body the other side of the plate extend. The further surface section extends particularly advantageously over at least a large part of a surface extension of the plate base body on the further plate side. The further surface section extends, for example, over a proportion of at least 65%, in particular of at least 75%, advantageously of at least 80%, particularly advantageously of at least 85%, preferably of at least 90% and particularly preferably of at least 95% of a surface extension of the plate base body the other side of the plate. This can In particular, a low light scattering and / or light influence can be achieved by the further surface section, as a result of which, for example, optimized lighting properties and / or an optimized external appearance can be provided.

For example, the first sub-area and the second sub-area could be arranged so as to overlap at least in sections, in particular when viewed perpendicularly onto a main plane of extent of the plate unit. The first sub-area and the second sub-area are particularly advantageously arranged, in particular when viewed perpendicularly onto a main plane of extent of the plate unit, at least in sections, advantageously at least to a large extent and particularly advantageously completely without overlapping. When viewed perpendicularly onto a main plane of extent of the plate unit, the first sub-area and the second sub-area advantageously form sections of the surface section that are different from one another. The first sub-area and the second sub-area preferably adjoin one another at least in sections, in particular when viewed perpendicularly onto a main plane of extent of the plate unit. For example, the second sub-area, in particular when looking at a main plane of extent of the plate unit, could surround and / or enclose the first sub-area at least in sections. The first sub-area surrounds and / or encloses the second sub-area advantageously at least in sections, in particular when looking at a main plane of extent of the plate unit. The phrase that at least one sub-area and at least one further sub-area adjoin one another “at least in sections” should be understood in particular to mean that at least a section of the sub-area and at least one section of the further sub-area adjoin one another and, for example, the sub-area could have at least a second section which could be free of bordering the second sub-area. In this way, in particular, a particularly advantageous and / or compact configuration can be achieved in which gaps between the subregions can advantageously be avoided.

It is also proposed that the plate unit has at least one third layer unit, which is provided to at least partially filter, in particular at least a large part, of light emitted by the light source in particular advantageous to filter. In an operating state, the third layer unit could advantageously at least partially filter light, in particular light emitted by the light source, in particular filter it at least to a large extent and advantageously filter it. The phrase that the third layer unit is intended to filter light “at least partially” should be understood in particular to mean that the third layer unit filters at least one wavelength range of the light in an operating state and, for example, could allow at least one further wavelength range of the light to pass unhindered . The third layer unit in particular has at least one filter function by means of which the third layer unit, in particular light emitted by the light source, at least partially filters. For example, with the filter function, the third layer unit could at least partially scatter and / or at least partially absorb and / or at least partially transmit light. In the case of the filter function, for example, the third layer unit could at least partially influence a direction of propagation of light and / or leave it at least partially unaffected. As a result, lighting and / or visibility that can be optimally and / or specifically adjusted can be made possible, whereby a high degree of design freedom can advantageously be achieved during manufacture.

It is further proposed that the third layer unit is arranged in at least one third sub-area of the surface section, advantageously adjoining the first sub-area. In particular, the third sub-area differs from the first sub-area and / or from the second sub-area. In this way, in particular, a high degree of flexibility and / or a high degree of design freedom can be made possible.

For example, the first sub-area and the third sub-area could be arranged so as to overlap at least in sections, in particular when viewed perpendicularly onto a main plane of extent of the plate unit. The first sub-area and the third sub-area are particularly advantageously, in particular when viewed perpendicularly onto a main plane of extent of the plate unit, at least in sections, advantageously at least to a large extent and particularly advantageously completely without overlapping. When viewed perpendicularly onto a main plane of extent of the plate unit, the first sub-area and the third sub-area advantageously form sections of the surface section that are different from one another out. The first sub-area and the third sub-area preferably adjoin one another at least in sections, in particular when viewed perpendicularly onto a main plane of extent of the plate unit. For example, the third sub-area, in particular when looking at a main plane of extent of the plate unit, could surround and / or enclose the first sub-area at least in sections. The first sub-area surrounds and / or encloses the third sub-area advantageously at least in sections, in particular when looking at a main plane of extent of the plate unit. As a result, a particularly advantageous and / or compact design can be achieved in particular.

It is also proposed that the third layer unit is provided, for example, at least partially in an inactivity mode and particularly advantageously by means of the filter function, in particular at least to a large extent and advantageously preventing it from escaping from the interior of the hob. A “hob interior” is to be understood as meaning, in particular, an area which is defined and / or delimited by at least one hob outer housing and which is designed in particular as a cavity and which is provided in particular to support at least one hob component. In particular, the hob device has at least one housing unit which in an assembled state at least partially delimits and / or defines the inside of the hob and which in particular forms and / or defines at least part of the hob outer housing in an assembled state.

In an assembled state, the housing unit delimits and / or defines the interior of the hob, in particular together with the plate unit. In an assembled state, the plate unit delimits and / or defines, in particular, at least part of the outer casing of the cooktop. In this way, in particular, light can be prevented from escaping from the interior of the hob, which advantageously makes it possible to provide an appealing external appearance.

It is further proposed that the third layer unit is provided, for example, at least partially in at least one operating mode and particularly advantageously by means of the filter function, in particular at least to a large extent and advantageously enabling it. In particular, this enables optimal visibility of lighting can be guaranteed, whereby for example important instructions and / or information can be output for an operation and / or in particular a particularly high security standard and / or a particularly high level of operating convenience can be provided.

The first layer unit could, for example, have a thickness which could be greater than a thickness of the third layer unit. For example, as an alternative, the first layer unit could, for example, have a thickness which could be smaller than a thickness of the third layer unit. The first layer unit preferably has a thickness which at least essentially corresponds to a thickness of the first layer unit. For example, a quotient of a smaller one of the thicknesses, for example the thickness of the first layer unit or the thickness of the third layer unit, and a larger one of the thicknesses, for example the thickness of the third layer unit or the thickness of the first layer unit, could have a value of at least 0.9, in particular of at least 0.92, advantageously of at least 0.94, particularly advantageously of at least 0.96, preferably of at least 0.98 and particularly preferably of at least 0.99. The thickness of the third layer unit could, for example, have a value of a maximum of 100 μm, in particular a maximum of 80 μm, advantageously a maximum of 60 μm, particularly advantageously a maximum of 50 μm, preferably a maximum of 40 μm and particularly preferably a maximum of 30 μm. In this way, an advantageous construction can be achieved in particular.

It is also proposed that the third layer unit at least participate in at least one identification of at least one operating area. In particular, the first layer unit and / or the light source play a role in the identification of the operating area, in particular in addition to the third layer unit. When viewed perpendicularly onto a main plane of extent of the plate unit, the third layer unit is in particular arranged so as to overlap at least in sections with at least one operating area. The third layer unit could, for example, when viewed perpendicularly on a main plane of extent of the plate unit, be arranged at least partially, advantageously at least to a large extent and preferably completely within a surface extension spanned by the operating area. In particular, the hob device has at least one operator interface which is arranged in an installation position below the operating area and / or which the operating area at least partially, advantageously at least largely and preferably completely defined. For example, the light source could be at least partially integrated in the operator interface. The operator interface could, for example, have at least one luminous element of the light source. In this way, in particular, an advantageously illuminated operating area can be provided, as a result of which, in particular, a high level of operating convenience can be achieved.

For example, the second layer unit could at least participate in at least one identification of at least one operating area. The second layer unit preferably at least contributes to at least one marking of at least one heating area. In particular, the first layer unit and / or the light source contribute to the identification of the heating area, in particular in addition to the second layer unit. When viewed perpendicularly onto a main plane of extent of the plate unit, the second layer unit is in particular arranged so as to overlap at least in sections with at least one heating area. The second layer unit could, for example, when viewed perpendicularly on a main plane of extent of the plate unit, be arranged at least partially, advantageously at least to a large extent and preferably completely within a surface extension spanned by the heating area. In particular, the hob device has at least one heating unit and in particular at least two, advantageously at least four, particularly advantageously at least eight, preferably at least twelve and particularly preferably a plurality of heating units. The heating units could for example be arranged in the form of a matrix and advantageously span and / or define the heating area. When viewed perpendicularly onto a main plane of extent of the plate unit, the heating area in an assembled state could in particular be a surface spanned by the heating units. In this way, in particular, optimal lighting properties can be achieved even in the heating area, which could, for example, enable a safe heating process.

It is further proposed that the first layer unit and / or the second layer unit have at least one coating. In particular, as an alternative or in addition, the first layer unit and / or the second layer unit could for example have at least one lacquer and / or at least one film. Thereby In particular, tried and tested technology can be used, as a result of which production can advantageously be optimized.

For example, the third layer unit could have at least one coating and / or at least one lacquer and / or at least one film. The third layer unit preferably has at least one self-adhesive film. The third layer unit has in particular at least one layer which has at least one self-adhesive film and is advantageously designed as a self-adhesive film. The third layer unit and / or at least one layer of the third layer unit could, for example, have at least one, in particular self-adhesive, sticker and advantageously be designed as, in particular self-adhesive, sticker. For example, the third layer unit and / or at least one layer of the third layer unit could be made at least to a large extent from at least one plastic, advantageously from at least one thermoplastic and preferably from at least one thermoplastic polymer. In particular, this enables quick and / or uncomplicated manufacture and / or assembly.

It is further proposed that the first layer unit and / or the second layer unit and / or the third layer unit have an at least substantially smooth surface, whereby in particular optimal lighting properties can be provided.

Particularly advantageous lighting can be achieved in particular by a hob, in particular by an induction hob, with at least one hob device according to the invention, in particular with at least one induction hob device according to the invention.

The hob device is not intended to be restricted to the application and embodiment described above. In particular, the hob device can have a number of individual elements, components and units that differs from a number of individual elements, components and units mentioned herein in order to fulfill a mode of operation described herein.

Further advantages emerge from the following description of the drawings. Exemplary embodiments of the invention are shown in the drawing. The drawing, the description and the claims contain numerous features in combination. Of the A person skilled in the art will expediently also consider the features individually and combine them into meaningful further combinations.

Show it:

1 shows a hob with a hob device in a schematic plan view,

FIG. 2 shows a section along the line II-II from FIG. 1 in a schematic representation and FIG

3 shows a section along the line III-III from FIG. 1 in a schematic representation.

FIG. 1 shows, by way of example, a hob 48a which, in particular, is at least partially and advantageously completely designed as an induction hob. For example, as an alternative or in addition, the hob 48a could for example be designed at least partially as a resistance hob and / or as a gas hob.

The hob 48a has in particular at least one and, for example, exactly one hob device 10a. The hob device 10a could be designed, for example, as a resistance hob device and / or as a gas hob device. In particular, the hob device 10a is designed as an induction hob device.

The hob device 10a has in particular at least one and, for example, exactly one plate unit 12a. In the present exemplary embodiment, the plate unit 12a is designed in particular as a hob plate. In at least one assembled state, the plate unit 12a forms, in particular, a visible surface which, in the assembled state, is arranged facing, in particular, an operator.

The plate unit 12a is provided in particular for setting up cooking utensils (not shown), in particular for the purpose of heating the cooking utensils. In particular, the plate unit 12a forms at least part of a hob outer housing in an assembled state. The hob device 10a has in particular at least one heating unit 56a. In the figures, only one object of multiple existing objects is provided with a reference symbol. For example, the hob device 10a could have at least two, advantageously at least four, particularly advantageously at least eight, preferably at least twelve and particularly preferably a multiplicity of heating units 56a. The heating units 56a could for example be arranged in the form of a matrix.

The heating units 56a define in particular at least one and, for example, precisely one heating area 46a. When viewed perpendicularly onto a main plane of extent of the plate unit 12a, the heating units 56a span in particular at least one area and advantageously the heating area 46a, which in particular corresponds to the area spanned by the heating units 56a. In the following, only one of the heating units 56a is described in particular.

The heating unit 56a is arranged in an installation position, in particular below the plate unit 12a. The heating unit 56a is provided in particular to heat at least one cookware set up on the plate unit 12a above the heating unit 56a. The heating unit 56a is designed in particular as an induction heating unit.

The hob device 10a has in particular at least one and, for example, exactly one operator interface 50a. The operator interface 50a is provided in particular for an input and / or selection of operating parameters, such as, for example, a heating power and / or a heating power density and / or a heating zone. The operator interface 50a is provided in particular for outputting a value of an operating parameter to an operator.

The operator interface 50a defines in particular at least one and, for example, precisely one operating area 44a. When viewed perpendicularly onto a main plane of extent of the plate unit 12a, the operator interface 50a spans in particular at least one area and advantageously the operating area 44a, which in particular corresponds to the area spanned by the operator interface 50a.

The hob device 10a has in particular at least one and, for example, precisely one control unit 52a. In at least one operating state, the control unit 52a controls and / or regulates, in particular, a main device function and / or the heating unit 56a. The control unit 52a is provided, in particular, in Carry out actions and / or change settings as a function of operating parameters entered by means of the operator interface 50a. In the operating state, the control unit 52a regulates, in particular, an energy supply to the heating unit 56a, specifically in particular for heating the cookware.

The hob device 10a has in particular at least one light source 54a (see FIGS. 2 and 3). In the present exemplary embodiment, the hob device 10a has in particular at least two, advantageously at least four, particularly advantageously at least eight, preferably at least twelve and particularly preferably a plurality of light sources 54a.

At least some of the light sources 54a are in particular integrated in the operator interface 50a and / or part of the operator interface 50a. The operator interface 50a has in particular at least some of the light sources 54a. The part of the light sources 54a which are part of the operator interface 50a is advantageously provided to illuminate the operating area 44a and / or to help identify the operating area 44a.

In particular, at least some of the light sources 54a, which advantageously differ from the light sources 54a integrated in the operator interface 50a, are provided to help identify the heating area 46a. The part of the light sources 54a which advantageously differ from the light sources 54a integrated in the operator interface 50a is advantageously provided for illuminating the heating unit 56a. In particular, only one of the light sources 54a is described below.

The light source 54a is provided in particular to provide light, in particular at least visible light. In an operating state, the light source 54a provides in particular light and advantageously at least visible light. In one installation position, the light source 54a is arranged in particular below the plate unit 12a. The light source 54a is advantageously arranged in an installation position on a side of the plate unit 12a facing away from an operator.

The plate unit 12a has in particular at least one and, for example, precisely one plate base body 14a. The plate base body 14a has, in particular, on at least one plate side 16a in at least one surface section 18a at least substantially smooth surface. The surface section 18a extends in particular over at least a large part of the plate side 16a. In an installation position, the plate side 16a is designed, in particular, as an underside of the plate base body 14a. In particular, the plate side 16a is designed in an installation position as a side of the plate base body 14a facing away from an operator.

The plate base body 14a has, in particular, on at least one further plate side 32a in at least one further surface section 34a, an at least substantially smooth surface. The further surface section 34a extends in particular over at least a large part of the further plate side 32a. The further plate side 32a is advantageously arranged opposite the plate side 16a. The plate side 16a and the further plate side 32a are in particular aligned at least substantially parallel to a main plane of extent of the plate base body 14a. The further plate side 32a is designed in an installation position in particular as a visible side of the plate base body 14a. In particular, the further plate side 32a is designed in an installation position as a side of the plate base body 14a facing an operator.

The plate unit 12a has in particular at least one and, for example, precisely one first layer unit 20a. The first layer unit 20a is arranged in particular in at least a first partial region 22a of the surface section 18a. In particular, the first layer unit 20a extends over at least a large part of the first partial region 22a. The first partial area 22a extends in particular over at least a large part of the surface section 18a. The first layer unit 20a is particularly advantageously at least essentially non-transparent and advantageously non-transparent, in particular at least with regard to visible light.

The plate unit 12a has, in particular for each light source 54a assigned to the heating region 46a, in particular at least one and, for example, precisely one second layer unit 24a. Only one of the second layer units 24a is described below.

The second layer unit 24a is arranged, in particular, in at least a second partial region 26a of the surface section 18a. In particular, the second extends Layer unit 24a over at least a large part of the second partial region 26a. The second sub-area 26a extends in particular over a maximum of 20%, advantageously over a maximum of 15%, particularly advantageously over a maximum of 10%, preferably over a maximum of 5% and particularly preferably over a maximum of 2% of the surface section 18a. The second layer unit 20a is particularly advantageously provided to scatter light, in particular at least visible light. In particular, the second layer unit 24a scatters light in an operating state, in particular light provided by the light source 54a.

When viewed perpendicularly onto a main plane of extent of the plate unit 12a, the first partial area 22a advantageously extends over at least a large part of the plate base body 14a. In the present exemplary embodiment, when viewed perpendicularly onto a main plane of extent of plate unit 12a, first partial area 22a extends, for example, over at least substantially 95% of an area spanned by plate base body 14a.

The first sub-area 22a and the second sub-area 26a advantageously adjoin one another at least in sections, in particular when viewed perpendicularly onto a main plane of extent of the plate unit 12a. In the present exemplary embodiment, the first sub-area 22a surrounds and / or delimits and / or defines, in particular when viewed perpendicularly onto a main plane of extent of the plate unit 12a, in particular the second sub-area 26a.

In an operating state, the second layer unit 24a at least participates in at least one identification of the heating area 46a. In particular, at least the second layer unit 24a and the light source 54a contribute to the identification of the heating region 46a in the operating state. For example, in addition, at least the plate unit 12a could, for example, contribute to the identification of the heating area 46a in the operating state.

For example, the second layer unit 24a has a thickness 30a which, in the present exemplary embodiment, could, for example, assume a value of at least substantially 11 μm. The first layer unit 20a has, for example, a thickness 28a which, in the present exemplary embodiment, could for example assume a value of at least substantially 30 μm. The thickness is advantageous 28a of the first layer unit 20a is greater than the thickness 30a of the second layer unit 24a.

The plate unit 12a has in particular at least one and, for example, precisely one third layer unit 36a. The third layer unit 36a is arranged, in particular, in at least a third partial area 38a of the surface section 18a. In particular, the third layer unit 36a extends over at least a large part of the third partial region 38a. The third sub-area 38a extends in particular over a maximum of 25%, in particular over a maximum of 20%, advantageously over a maximum of 15%, particularly advantageously over a maximum of 10%, preferably over a maximum of 7% and particularly preferably over a maximum of 4% of the surface section 18a.

The first sub-area 22a and the third sub-area 38a advantageously adjoin one another at least in sections, in particular when viewed perpendicularly onto a main plane of extent of the plate unit 12a. In the present exemplary embodiment, the first sub-area 22a surrounds and / or delimits and / or defines, in particular when viewed perpendicularly onto a main plane of extent of the plate unit 12a, in particular the third sub-area 38a.

The third layer unit 36a is particularly advantageously provided to at least partially filter light, in particular at least visible light. In particular, the third layer unit 36a filters light at least partially in an operating state, in particular light provided by the light source 54a.

In particular when the light is at least partially filtered, the third layer unit 36a in an operating state and / or in an inactivity mode in particular at least partially prevents light from escaping from a hob interior 40a. The third layer unit 36a is provided in particular to at least partially prevent light from escaping from the hob interior 40a.

In particular with the at least partial filtering of the light, the third layer unit 36a in an operating state and / or in an operating mode in particular enables light to escape from the hob interior 40a at least partially. The third layer unit 36a is provided in particular to at least partially enable light to exit from the hob interior 40a. The second layer unit 36a has, for example, a thickness 42a which, in the present exemplary embodiment, could for example assume a value of at least substantially 30 μm. The thickness 42a of the third layer unit 36a advantageously corresponds at least substantially to the thickness 28a of the first layer unit 20a.

In an operating state, the third layer unit 36a at least participates in at least one identification of the operating area 44a. In particular, at least the third layer unit 36a and the light source 54a contribute to the identification of the operating area 44a in the operating state. For example, in addition, at least the disk unit 12a and / or the operator interface 50a could, for example, contribute to the identification of the operating area 44a in the operating state.

In the present exemplary embodiment, the third layer unit 36a has in particular at least one self-adhesive film. The third layer unit 36a is designed in particular as a self-adhesive film and advantageously as a self-adhesive sticker.

In the present exemplary embodiment, the first layer unit 20a has in particular at least one coating. The first layer unit 20a could advantageously be designed as a multilayer structure and in particular have at least two, advantageously at least three, particularly advantageously at least four and preferably several coatings, in particular to ensure complete non-transparency and / or to exclude defects such as pinholes.

In the present exemplary embodiment, the second layer unit 24a has in particular at least one coating. In particular, the second layer unit 24a is designed as a coating.

For example, the first layer unit 20a and / or the second layer unit 24a could be applied to the plate base body 14a by means of at least one screen printing process and / or by means of at least one printing process.

The described configuration could, for example, achieve a high degree of design freedom with regard to lighting, as a result of which, for example, desired design requirements and / or a functional lighting design could be achieved. Reference number

10 hob device 12 plate unit 14 plate base body 16 plate side 18 surface section 20 first layer unit 22 first sub-area 24 second layer unit 26 second sub-area 28 thickness 30 thickness

32 Further panel side 34 Further surface section 36 Third layer unit 38 Third subarea 40 Hob interior 42 Thickness 44 Operating area 46 Heating area 48 Hob 50 Operator interface 52 Control unit 54 Light source 56 Heating unit

Claims

Expectations

1. Hob device, in particular induction hob device, with at least one plate unit (12a) which has at least one plate base body (14a) which has an at least substantially smooth surface on at least one plate side (16a) in at least one surface section (18a), and which has at least has a first layer unit (20a) which is arranged in at least a first partial area (22a) of the surface section (18a) and which is at least substantially non-transparent, and which has at least one second layer unit (24a) which is located in at least a second partial area ( 26a) of the surface section (18a) and which is intended to scatter light.

2. Hob device according to claim 1, characterized in that the first sub-area (22a) extends over at least a large part of the plate base body (14a) when viewed perpendicularly onto a main plane of extension of the plate unit (12a).

3. Hob device according to claim 1 or 2, characterized in that the first layer unit (20a) has a thickness (28a) which is greater than a thickness (30a) of the second layer unit (24a).

4. Hob device according to one of the preceding claims, characterized in that the first sub-area (22a) and the second sub-area (26a) adjoin one another at least in sections.

5. Hob device according to one of the preceding claims, characterized in that the plate unit (12a) has at least one third layer unit (36a) which is provided to at least partially filter light.

6. Hob device according to claim 5, characterized in that the third layer unit (36a) is arranged in at least a third partial area (38a) of the surface section (18a).

7. Hob device according to claim 5 or 6, characterized in that the first sub-area (22a) and the third sub-area (38a) adjoin one another at least in sections.

8. Hob device according to one of claims 5 to 7, characterized in that the third layer unit (36a) is provided to at least partially prevent light from escaping from a hob interior (40a).

9. Hob device according to one of claims 5 to 8, characterized in that the third layer unit (36a) is provided to allow light to exit from a hob interior (40a) at least partially.

10. Hob device according to one of claims 5 to 9, characterized in that the third layer unit (36a) has a thickness (42a) which at least substantially corresponds to a thickness (28a) of the first layer unit (20a).

11. Hob device according to one of claims 5 to 10, characterized in that the third layer unit (36a) in at least one

Identification of at least one operating area (44a) at least contributes.

12. Hob device according to one of the preceding claims, characterized in that the second layer unit (24a) at least participates in at least one identification of at least one heating area (46a).

13. Hob device according to one of the preceding claims, characterized in that the first layer unit (20a) and / or the second layer unit (24a) has at least one coating.

14. Hob device at least according to claim 5, characterized in that the third layer unit (36a) has at least one self-adhesive film.

15. Hob, in particular induction hob, with at least one hob device (10a) according to one of the preceding claims.