Cooking hob device, cooking hob and method for operating a cooking hob device

Abstract

The invention relates to a cooktop device (10a; 10b; 10c) with a base plate (12a; 12b; 12c) and with a radiation source unit (14a; 14b; 14c). To increase ease of use and protection, it is proposed that the radiation source unit (14a; 14b; 14c) be designed to emit radiation through an outermost edge region (16a; 16b; 16c) of the base plate (12a; 12b; 12c).

Description

[0001] The invention relates to a cooktop device according to the preamble of claim 1, a cooktop according to claim 10 and a method for operating a cooktop device according to claim 11.

[0002] Lighting devices for cooktops are already known in the prior art. WO 2015 / 068093 A1 discloses a display unit that illuminates a surface plate to display at least one character legible to an operator. EP 3296644 B1 and DE 202023103051 U1 each disclose lighting devices for recessed cooktops. In the prior art, the light is only emitted outside an outermost edge area and / or not through a surface plate. This results in only limited precision in marking an edge and / or limited visibility of processes in the outermost edge area. Furthermore, a light source cannot be protected from contamination, particularly caused by cooking, or can only be protected inefficiently.

[0003] The object of the invention is, in particular but not limited to, providing a generic device with improved user-friendliness and protection. This object is achieved according to the invention by the features of claim 1, claim 10 and claim 11, while advantageous embodiments and further developments of the invention can be found in the dependent claims.

[0004] The invention relates to a cooktop device with a mounting plate and a radiation source unit.

[0005] It is proposed that the radiation source unit be designed to radiate through an outermost edge area of ​​the mounting plate.

[0006] Such a design allows for particularly precise marking of the outermost edge, thereby advantageously increasing safety and / or ease of use. Precise marking of the outermost edge allows for enhanced safety, particularly through a precise boundary for placing objects on the cooktop. Advantageously, at least one process, such as the release of steam, can be made particularly visible in the outermost edge, thereby increasing ease of use. The cooktop's visibility can be improved by allowing the edges of the structure to align particularly precisely with areas marked by the radiation source unit.Furthermore, the safety and / or efficiency and / or service life of the radiation source unit can be advantageously increased by protecting at least one radiation source unit from contamination, particularly caused by a cooking process, for example by liquids and / or vapors and / or solids, through the mounting plate.

[0007] The term "cooktop device" is understood to mean, in particular, at least a part, especially a sub-assembly, of a cooktop, and may also include accessory units for the cooktop, such as a sensor unit for externally measuring the temperature of a mounting unit. In particular, the cooktop device may also comprise the entire cooktop. The cooktop may be designed as an induction cooktop and / or as a resistance cooktop. The cooktop is preferably designed as a range cooktop, which in particular has an integrated range hood. The range cooktop is in particular designed as a cooktop with downward-facing ventilation, especially as a downdraft cooktop.The cooktop, for example the cooktop device, preferably has a power transfer unit with at least one power transfer element, in particular a power transfer coil, for example a heating coil. The power transfer unit can be designed as a power supply unit for an inductive power supply and / or as any heating unit that would be suitable to a person skilled in the art. The cooktop, in particular the power transfer unit, is preferably designed to transfer power to a mounting unit placed on the base plate, in particular to supply power to and / or heat this mounting unit. The mounting unit can be designed as a cooking vessel or as a small household appliance, in particular as a small cooking appliance. The cooking vessel is, for example, designed as a pot, a pan, a roasting pan, or as any other cooking vessel that would be suitable to a person skilled in the art.The small household appliance is preferably portable and, in particular, can be transported manually by the operator. Preferably, the small household appliance has at least one electrical functional unit, for example, an electric motor and / or a sensor unit and / or the like, which can be operated by means of inductive energy emanating from the energy transfer unit. The small household appliance can be, for example, a food processor, a rice cooker, an air fryer, a blender, a kettle, a coffee maker, a smart pot, and / or the like. The energy transfer unit is preferably at least partially, and more preferably completely, arranged below the base plate.In this document, location terms such as "below" or "above" preferably refer to an installation position, particularly the mounted state, of the cooktop, preferably the cooktop assembly, unless explicitly described otherwise. The mounting plate is intended for setting up the mounting unit for energy transfer to the mounting unit. The mounting plate is preferably plate-like. A "plate-like" element is understood to be, in particular, an element that has a material thickness, in particular a thickness, which preferably corresponds to a maximum of 50%, more preferably a maximum of 20%, more preferably a maximum of 10%, and most advantageously a maximum of 5% of a length and / or a width of the element, wherein the element has, in particular, opposing sides, each of which has a flat, in particular smooth, surface.The mounting plate is preferably formed as a single unit and / or molded in one piece. The mounting plate preferably has a top surface facing the mounting unit in its installed state and, in particular, a bottom surface facing away from the mounting unit in its installed state, especially towards the energy transfer unit. The top surface and / or the bottom surface are preferably arranged at least substantially parallel to a principal plane of extension of the mounting plate. "At least substantially parallel" here refers in particular to an alignment of a direction and / or a plane relative to a reference direction and / or a reference plane, wherein the direction and / or the plane has a deviation from the reference direction and / or the reference plane of, in particular, less than 8°, advantageously less than 5°, and most advantageously less than 2°.A "principal extension plane" of a component or element is understood to be, in particular, a plane that is parallel to a major side face of the smallest possible imaginary cuboid that just completely encloses the component or element, and especially passes through the center of the cuboid. The mounting plate preferably has a constant thickness. Preferably, the mounting plate is designed as a cooktop plate, in particular made of glass and / or glass-ceramic and / or another material that would appear suitable to a person skilled in the art. Alternatively, the mounting plate can be designed as a kitchen worktop, in particular made of a non-metallic material.Preferably, the kitchen worktop, particularly in contrast to the cooktop, is additionally designed to provide a food preparation area where, for example, cutting, mixing, pounding, and / or peeling food could be carried out. The worktop is preferably at least partially, and especially at least in its outermost edge area, or more preferably completely, or at least partially, permeable, particularly transparent or translucent, to radiation emitted by the radiation source unit. A translucent design can, in particular, increase user-friendliness by reducing the visibility of the radiation source unit beneath the worktop, especially for the operator.The mounting plate is preferably designed to transmit the radiation from the radiation source unit, particularly along a radiation path extending along the thickness of the mounting plate, at least partially, preferably at least to a large extent, wherein the transmission of the radiation has a transmittance greater than 0.5, advantageously at least 0.7, preferably greater than 0.8, and most preferably at least 0.9. The radiation source unit is particularly designed to radiate from its outermost edge region.The radiation transmitted through the mounting plate can, in particular due to refraction and / or wavelength-dependent absorption and / or reflection and / or scattering of the radiation in and / or at the mounting plate and / or due to a change in polarization and / or due to another effect known to those skilled in the art, differ at least partially from the radiation emitted directly from the radiation source unit, for example with respect to a wavelength and / or a color and / or an intensity and / or a polarization and / or the like. Alternatively, the radiation transmitted through the mounting plate can correspond at least substantially, in particular at least with respect to a wavelength and / or a color and / or an intensity and / or a polarization and / or the like, to the radiation emitted directly from the radiation source unit.The radiation source unit is designed to emit radiation into the outermost edge region. The radiation source unit preferably comprises at least one radiation element, which is specifically designed to emit radiation into at least a subsection of the outermost edge region. The radiation element is preferably configured as an LED. Alternatively, another configuration of the radiation element that would be considered suitable by those skilled in the art would be conceivable, for example, as a light bulb or the like. The radiation source unit preferably comprises a plurality, and in particular at least two, radiation elements, which are preferably identical to each other. Alternatively, the at least two radiation elements can each be configured differently from one another.The radiation source unit, in particular the at least one radiation element, is preferably designed to emit at least, for example, only, visible radiation. The radiation source unit can be configured as a light source unit with at least one radiation element designed as a luminaire. The radiation source unit is preferably designed to emit radiation into at least a portion, preferably the entire outermost edge region, and in particular to illuminate this region. The radiation is preferably in the form of light. Preferably, the radiation transmitted through the mounting plate is at least partially visible, wherein the transmitted radiation is in particular based at least on visible radiation emitted by the radiation source unit. Advantageously, the outermost edge region can be marked for the operator in a particularly simple manner, in particular displayed to the human eye.Alternatively or additionally, the radiation source unit could be designed to emit infrared and / or ultraviolet radiation. Alternatively or additionally, the radiation source unit could be designed to emit other radiation that would be considered useful by a person skilled in the art. The radiation transmitted by the mounting plate can be at least partially infrared and / or ultraviolet, and in particular, the transmitted radiation is based at least on the infrared and / or ultraviolet radiation emitted by the radiation source unit. For example, advantageous radiation could be provided to mark the outermost edge for machine detection, for example, by means of a detection camera that views the cooktop from above.Alternatively, it would be conceivable that the mounting plate is designed to convert invisible radiation, in particular infrared and / or ultraviolet radiation emitted at the radiation source unit, into visible radiation during transmission.

[0008] The outermost edge region describes, in particular, at least an area and / or a volume of the mounting plate at an outermost edge of the mounting plate. The radiation source unit is specifically designed to identify the outermost edge by means of radiation emitted from the outermost edge region. Preferably, the outermost edge region comprises at least a portion of at least one side surface of the mounting plate, wherein the side surface extends, in particular, at least substantially perpendicular to the top and / or bottom surface and preferably forms a termination of the mounting plate.The term "at least substantially perpendicular" here is intended to define, in particular, an orientation of a direction and / or a plane relative to a reference direction and / or a reference plane, wherein the direction and / or the plane and the reference direction and / or the reference plane, particularly when viewed in a projection plane, enclose an angle of 90° and the angle has a maximum deviation of, in particular, less than 8°, advantageously less than 5°, and most advantageously less than 2°. The outermost edge region has, in particular, at least one edge of the mounting plate, at least partially, preferably completely, wherein the at least one edge is formed, in particular, between the top and the side surface and / or between the top and the bottom surface. The radiation source unit is preferably designed to radiate through the edge and, in particular, to illuminate it, at least partially, and in particular completely.Preferably, the outermost edge region extends at least from the underside to the edge, particularly in a direction parallel to the thickness of the mounting plate. The outermost edge region can comprise a portion of the underside and, in particular, a portion of the top side of the mounting plate. The outermost edge region can extend from the portion of the underside to the portion of the top side of the outermost edge region and have a thickness equal to the thickness of the mounting plate. Preferably, the outermost edge region has a thickness, particularly along a direction parallel to the thickness of the mounting plate, that is less than or equal to the thickness of the mounting plate. Preferably, the edge region has a width, particularly with respect to its extension from the side surface, of at least 1 mm, preferably at least 2 mm, and most preferably at least 2 mm, particularly in a viewing direction perpendicular to the top side of the mounting plate.The thickness is 5 mm and particularly advantageously at least 3 mm. The width is preferably a maximum of 15 mm, more preferably a maximum of 10 mm, more preferably a maximum of 7 mm, and most advantageously a maximum of 5 mm. Alternatively, other larger or smaller values ​​for the width that would appear reasonable to a person skilled in the art would be conceivable.

[0009] The term "intended" is understood to mean specifically programmed, designed, and / or equipped. The fact that an object is intended for a specific function is understood to mean, in particular, that the object fulfills and / or executes this specific function in at least one application and / or operating state.

[0010] It is further proposed that the radiation source unit, particularly its entirety, be arranged below the mounting plate. Preferably, the radiation source unit is arranged on a side of the mounting plate facing away from the side intended for mounting the mounting unit, particularly the top side. In particular, the mounting plate can advantageously protect the radiation source unit from contamination, especially caused by a cooking process in and / or on the mounting unit above the mounting plate. The radiation source unit is preferably attached to the underside of the mounting plate.The radiation source unit, in particular the at least one radiation element, can be configured to emit radiation at least substantially parallel to the top and / or the bottom, wherein the cooktop device, in a radiation path between the radiation source unit and the mounting plate, has in particular at least one radiation deflection element for deflecting the emitted radiation in a direction at least substantially perpendicular to the top and / or the bottom. The radiation source unit is preferably part of a radiation output unit, which can additionally have the at least one radiation deflection element and is in particular configured to at least emit the radiation and direct it to the mounting plate.The radiation output unit is preferably designed to emit radiation in the direction of the mounting plate, in particular at least substantially perpendicular to the top and / or bottom. Alternatively, the radiation output unit can be designed without a radiation deflection element. The radiation source unit, in particular the at least one radiation element, can be designed to emit radiation in the direction of the mounting plate, wherein a radiation path between the radiation source unit and the mounting plate can be designed, in particular, without a radiation deflection element. The radiation source unit, in particular the at least one radiation element, can be designed to emit radiation at least substantially perpendicular to the top and / or bottom.

[0011] The cooktop device preferably has at least one blocking element for preventing radiation, particularly outside the outermost edge region. The blocking element preferably limits the outermost edge region, particularly in a viewing direction perpendicular to the top of the mounting plate, at least on one side, especially on a side opposite the edge. Preferably, the blocking element is arranged below the mounting plate. The blocking element is preferably connected to the underside of the mounting plate, particularly by contact. The blocking element is preferably plate-like. The blocking element can be designed as a single plate, particularly a rigid one. The connection between the blocking element and the mounting plate can be designed to be separable without damage.The barrier element can alternatively be designed as a film and / or as a printed ink layer and / or the like, in particular with a thickness of a maximum of 5 mm, advantageously 3 mm, preferably a maximum of 2 mm, particularly preferably a maximum of 1 mm, and particularly advantageously a maximum of 0.5 mm. Alternatively or additionally, it would be conceivable that the barrier element and / or at least one further barrier element is arranged on the top side of the mounting plate and / or that the mounting plate is opaque, at least outside the outermost edge area, at least with respect to the radiation from the radiation source unit, and in particular, that it is opaque.

[0012] Furthermore, it is proposed that the outermost edge area has a beveled and / or rounded section of the mounting plate. The beveled and / or rounded section is preferably designed as the beveled and / or rounded edge. Advantageously, ease of use can be improved by enhancing the aesthetics through illumination of the beveled and / or rounded section. The radiation source unit is specifically designed to emit light through the beveled and / or rounded section of the mounting plate. In particular, the visibility of the outermost edge area can be further enhanced by the emission through the beveled and / or rounded section.Radiation emitted from the mounting plate by the radiation source unit preferably has at least one directional component horizontal and / or at least one directional component parallel to the top of the mounting plate.

[0013] It is further proposed that the mounting plate has a recess adjacent to the outermost edge area. The recess can be advantageously characterized by means of radiation. The recess can provide at least one function of the cooktop. The recess is preferably designed as part of a channel in the cooktop and / or can be configured to accommodate at least one functional element, for example, a plate, for instance, to enhance the aesthetics and / or to provide a cooling area for the mounting unit, or the like. The recess penetrates the mounting plate, preferably completely, and in particular along a direction from the underside to the top.The recess can be at least substantially square, and in particular at least substantially rectangular, wherein the shape of the recess deviates from a purely square, and in particular rectangular, shape by at most 25%, preferably by at most 10%, and preferably by at most 5%. Alternatively, the recess can have any shape that appears useful to a person skilled in the art, for example, an at least substantially oval or circular shape, or the like. The recess is arranged, in particular in a viewing direction perpendicular to the top surface of the mounting plate, preferably between the energy transfer elements and in particular in the center of the mounting plate.Alternatively, it is conceivable that the recess is located in an end area of ​​the mounting plate, for example on a user interface of the hob and in particular on a side of the mounting plate facing away from the user, or in another area of ​​the mounting plate that would appear sensible to a person skilled in the art.

[0014] Alternatively or additionally, the outermost edge area can adjoin at least one further recess of the mounting plate and / or be arranged at an outer end area of ​​the mounting plate, which in particular includes an entire remainder of the mounting plate.

[0015] Furthermore, it is proposed that the recess be designed as an extraction opening. Preferably, the cooktop is designed as an extraction cooktop, in particular as a range cooktop with a range hood. Advantageously, the extraction of steam through the opening, and thus in particular the extraction effect, can be made visible by means of radiation, thereby increasing ease of use. In particular, lighting can be provided in the area of ​​the extraction opening. The outermost edge is preferably designed as an outermost extraction edge area. Advantageously, the edge of the extraction opening can be marked with particular precision. The extraction opening is preferably part of an extraction duct of the cooktop and in particular forms its beginning, especially along an extraction direction. The cooktop preferably has at least one fan unit to provide extraction power.Preferably, the cooktop has at least one filter unit for filtering at least the extracted medium, in particular in the extraction duct.

[0016] Furthermore, it is proposed that the cooktop device has at least one cover element which can be received within the recess with at least substantially no overlap. Preferably, the cooktop device has exactly one cover element for receipt in the recess. Preferably, the cover element is received in the recess at least when the extractor unit, in particular the fan unit, of the cooktop is not in operation. Advantageously, at least ease of use can be increased, in particular by improving the aesthetics and / or cleaning efficiency of the cooktop device, especially the cooktop itself. The cover element is preferably designed to close the recess and, in particular, the extraction duct within the recess. In particular, the entry of an object and / or liquid into the extraction duct through the recess closed by means of the cover element can be prevented.The cover element is preferably form-fitting and is particularly shaped to fit the recess. Preferably, the cover element is plate-like and has a thickness at least substantially equal to the thickness of the mounting plate, wherein the thickness of the cover element differs from the thickness of the mounting plate by less than 25%, preferably less than 10%, and most preferably less than 5%. The cover element can be designed to seal the recess in a liquid-tight and / or gas-tight manner. The cover element received in the recess preferably contacts the side surface of the mounting plate in its outermost edge region. The cover element can be at least partially, and in particular completely, opaque to the radiation from the radiation source unit.Preferably, the cover element is designed to block a radiation path emanating from the radiation source unit through the side surface. Alternatively, it is conceivable that the cover element is at least partially transparent or translucent to the radiation emanating from the radiation source unit, wherein, in particular, at least one radiation path of the radiation radiating through the side surface passes through the cover element. The cover element can be made of the same material as the mounting plate. The cover element is designed to be received, in particular, at least in one, and especially in every, viewing direction parallel to the top surface of the mounting plate, with at least substantially no overlap. When received in the recess, the cover element is aligned, in particular, parallel to the mounting plate.Preferably, a surface of the cover element in the received state is arranged at least substantially in the same plane as the top of the mounting plate, wherein the offset between a plane of the surface of the cover element and a plane of the top of the mounting plate is particularly at most 25%, preferably less than 10%, and most preferably at most 5% of the thickness of the cover element and / or the mounting plate. Preferably, the cover element is fully received in the recess. Preferably, the cover element is fully received in the recess at least when the extractor fan is not in operation. In particular, the cover element is received in the recess flush with the top of the mounting plate. The cover element can be permanently connected to the mounting plate, in particular at least without tools and / or non-destructively.For example, the cover element can be pivotably connected to the mounting plate relative to the mounting plate. The cover element can be designed as a hinged element, which, in particular, can be pivoted relative to the mounting plate, at least to be inserted into the recess. Alternatively, it is conceivable that the cover element can be completely removed from the recess, especially without tools, and reinserted into the recess, particularly to be inserted into the recess.

[0017] It is further proposed that the mounting plate have a volume and / or surface treatment, in particular a matting, in its outermost edge region. Advantageously, the visibility of the radiation emitted through the outermost edge region can be increased by enhanced scattering of the radiation by the volume and / or surface treatment. The surface treatment can, for example, include roughening and / or texturing of the surface. The volume treatment can, for example, be designed as the introduction of particles acting as scattering centers, at least in the outermost edge region of the mounting plate. Alternatively, any other volume and / or surface treatment that appears suitable to a person skilled in the art, in particular for providing scattering centers, is conceivable.

[0018] Furthermore, it is proposed that the radiation emitted by the radiation source include at least one status indicator. Advantageously, this status indicator can be communicated to the operator in a particularly efficient and, in particular, intuitive manner. The status indicator is preferably configured as information regarding the exhaust unit, especially the fan unit, and / or regarding the recording status of the cover element. The status indicator can be configured as a wavelength, especially a color, of the radiation and / or as a pulse frequency, especially a flashing frequency, of the radiation and / or as an intensity of the radiation. Alternatively or additionally, the status indicator can be configured as a pattern of the radiation resulting from separate control of the radiation elements.Preferably, the status information is designed as information regarding a run-on mode, in particular of the fan unit, after switching off and / or reducing the power transfer unit, and / or regarding an extraction level of the fan unit, and / or regarding a maintenance status, for example, as a maintenance message regarding a filter change and / or filter cleaning, and / or the like, and / or regarding a switch-off state of the cooktop, in which, in particular, the cover element is received in the recess, and / or as other status information regarding the cooktop device and / or, in particular, the cooktop itself, which appears meaningful to a person skilled in the art. For example, the radiation can be designed as ambient lighting, at least in the switch-off state of the cooktop.The cooktop device preferably has at least one control unit for determining the status information and for controlling the radiation source based on the status information.

[0019] The cooktop device preferably has at least one radiation guidance element for directing radiation from the radiation source unit to the outermost edge region. Furthermore, it is proposed that the cooktop device has at least one light guide and / or a reflector for directing radiation from the radiation source to the outermost edge region. Advantageously, the efficiency of the radiation transmission to the outermost edge region can be increased, particularly by reducing intensity loss along the radiation path. In particular, the position and / or service life of the radiation source unit can be improved, as the radiation guidance element allows it to be positioned, especially outside a heating zone with a lower limit temperature of the energy transfer unit. The radiation guidance element is preferably configured as the light guide and / or the reflector.The aforementioned radiation deflection element, particularly designed as a radiation guide, is preferably configured as a light guide and / or a reflector. Alternatively, the radiation guide element, for example the light guide, could be configured for the straight-line transmission of the radiation, particularly without deflection. Preferably, however, the light guide and / or the reflector is designed to change the direction of radiation, in particular to deflect it, between the radiation source unit and the mounting plate. The light guide and / or the reflector is preferably designed to deflect the radiation emitted from the radiation source unit, in particular at least substantially parallel to the top and / or the bottom, in a direction at least substantially perpendicular to the top and / or the bottom.The radiation guidance element, in particular the radiation deflection element, preferably the light guide and / or the reflector, is preferably designed to change the direction of propagation of the radiation by at least substantially 90°, wherein the change deviates from 90° by a maximum of 8°, advantageously by less than 5°, and most advantageously by a maximum of 2°. The light guide and / or the reflector is preferably designed for at least one reflection of the radiation. The light guide is preferably designed as an optical waveguide with at least one fiber, for example, as at least one optical fiber. The light guide and / or the reflector can be designed for guiding radiation originating from only one radiation element or from more than one radiation element of the radiation source unit. The cooktop device can have more than one light guide and / or reflector.The light guide can be designed to change the direction of radiation propagation by at least substantially 90° towards the mounting plate. Alternatively, the light guide can be designed to transport the radiation to sub-regions of the outermost edge area that are remote from the radiation element and, in particular, to provide more than one deflection of the radiation propagation direction. The cooktop device can, for example, have only one light guide and / or reflector, wherein the light guide is, in particular, ring-shaped according to the shape of the outermost edge area and is designed to direct all the radiation from the radiation source unit to the outermost edge area. The ring-shaped light guide is preferably designed to illuminate the entire outermost edge area.The light guide can be attached to the underside of the mounting plate, for example by means of an adhesive connection.

[0020] Furthermore, a method for operating a cooktop device, particularly one of the aforementioned types, is proposed, wherein at least one radiation source, particularly one of the aforementioned types, emits radiation through an outermost edge region of a mounting plate, particularly one of the aforementioned types. Advantageously, the precision, safety, and ease of use of the cooktop device can be increased. The method preferably comprises at least one process step, particularly an emission step, in which the radiation source unit emits radiation. The radiation source unit emits radiation, particularly in the emission step, through the outermost edge region. At least one light guide, particularly one of the aforementioned types, and / or one reflector, particularly one of the aforementioned types, of the cooktop device can direct the radiation, particularly in the emission step, to the outermost edge region.The method may include a further process step, in particular a status output step, in which the radiation source unit is preferably provided to output and / or change at least one status piece of information, in particular the one mentioned above.

[0021] The cooktop device, the cooktop, and the method for operating the cooktop device are not limited to the application and embodiment described above. In particular, the cooktop device, the cooktop, and the method for operating the cooktop device may, to achieve a functionality described herein, comprise a different number of individual elements, components, units, and process steps than specified herein.

[0022] Further advantages become apparent from the following description of the drawings. The drawings illustrate exemplary embodiments of the invention. The drawings, the description, and the claims contain numerous features in combination. A person skilled in the art will expediently consider the features individually and combine them into meaningful further combinations.

[0023] They show: Fig. 1 A schematic representation of at least part of a cooktop with a range hood and with a cooktop device, in an open state of the range hood, Fig. 2 a side sectional view of the cooktop device made of Figure 1, which has a radiation output unit, Fig. 3 a schematic representation of at least part of the cooktop, in a closed state of the extractor unit, Fig. 4 a side sectional view of the cooktop device in the closed state, Fig. 5 a flowchart of a method for operating the cooktop device, Fig. 6 a side sectional view of a cooktop device with an alternative radiation output unit, in an open state of an extractor unit of a cooktop, Fig. 7 a side sectional view of the cooktop device made of Figure 6 Fig. 8 shows a side sectional view of a cooktop unit with a further alternative radiation output unit in a closed state, Fig. 9 shows a side sectional view of a cooktop unit in an open state, and Fig. 9 shows a side sectional view of the cooktop unit made of Figure 8 in a closed state of the extractor hood unit.

[0024] Figure 1 Figure 1 shows an oblique top view of at least part of a cooktop 50a. The cooktop 50a is designed as a range cooktop 52a, in particular as a downdraft cooktop. The cooktop 50a has a range extraction unit (not shown), in particular for downward extraction. The cooktop 50a, in particular the range extraction unit, has at least one extraction duct (not shown) and at least one fan unit (not shown) for driving an extraction along the extraction duct.

[0025] The extractor hood is currently in an open state. In this open state, the extractor hood is ready for extraction operation.

[0026] The cooktop 50a has a support plate 12a. The support plate 12a is designed to support at least one mounting unit 54a on a top surface 22a of the support plate 12a. The support plate 12a is designed as a cooktop surface. The support plate 12a is made of glass and / or glass-ceramic. Alternatively, a different material composition that would be considered sensible by a person skilled in the art and / or a design of the support plate 12a as a kitchen worktop are conceivable.

[0027] The cooktop 50a has an energy transfer unit 56a for transferring energy to at least one mounting unit 54a placed on the base plate 12a. The energy transfer unit 56a is designed to transfer energy, in this case heating, to a mounting unit 54a placed above an energy transfer element 58a on the base plate 12a. The energy transfer unit 56a is designed to transfer energy to the mounting unit 54a when it is placed on at least one energy transfer zone 60a of the cooktop 50a, which is fixedly arranged on the base plate 12a and is specifically designed as a heating zone.

[0028] Alternatively, it is conceivable that the energy transmission unit 56a has a matrix-like structure and is designed to form a variable energy transmission area.

[0029] The energy transfer unit 56a comprises at least one energy transfer element 58a. The energy transfer element 58a is designed as an energy transfer coil, in this case, for example, as a heating coil. The energy transfer element 58a is assigned to a respective energy transfer zone 60a.

[0030] Alternatively or additionally, the energy transmission unit 56a can be designed as an energy supply unit for an inductive power supply of the installation unit 54a.

[0031] The installation unit 54a is designed in this case as a cooking vessel. Alternatively, the installation unit 54a can be designed as a small household appliance, in particular as a small cooking appliance, which can be supplied with power inductively from the energy transmission unit 56a.

[0032] The mounting plate 12a has a recess 18a, to which an outermost edge region 16a adjoins. The recess 18a penetrates the mounting plate 12a completely along a direction 66a at least substantially perpendicular to the upper surface 22a.

[0033] The recess 18a is, in this case, at least substantially rectangular. The recess 18a is arranged between the energy transfer elements 58a. Alternatively, another shape and / or arrangement of the recess 18a that would appear sensible to a person skilled in the art is conceivable.

[0034] The recess 18a is designed as an extraction opening 28a. The recess 18a is part of the extractor hood unit. The recess 18a forms the beginning of the extractor hood duct.

[0035] The cooktop 50a has a cooktop device 10a. The cooktop device 10a is designed as a range hood cooktop device. The cooktop device 10a has the mounting plate 12a. In this case, the cooktop device 10a is designed without the range hood unit of the cooktop 50a. Alternatively, the cooktop device 10a could, for example, at least partially incorporate the range hood unit.

[0036] The cooktop device 10a includes a radiation source unit 14a. The radiation source unit 14a is designed to emit at least visible radiation. In this case, the radiation source unit 14a is designed to emit only visible radiation. The radiation from the radiation source unit 14a is in the form of light. The radiation source unit 14a is designed as a light source unit.

[0037] Alternatively or additionally, it is conceivable that the radiation source unit 14a is at least partially intended to emit radiation with a wavelength different from visible radiation, for example infrared and / or ultraviolet radiation.

[0038] The radiation source unit 14a has at least one radiation element 24a (see Figure 2 The at least one radiation element 24a is designed to emit radiation. In this case, the radiation element 24a is configured as a light source. The radiation element 24a is configured as an LED. Alternatively, any other configuration of the radiation element 24a that would appear sensible to a person skilled in the art would be conceivable.

[0039] The radiation source unit 14a has at least two radiation elements 24a, of which only one radiation element 24a is designated (cf. Figure 2The radiation elements 24a are identical in design.

[0040] The radiation source unit 14a is designed to emit radiation through the outermost edge area 16a of the mounting plate 12a.

[0041] The radiation source unit 14a is designed to emit radiation into the entire outermost boundary region 16a in at least one operating state. The radiation source unit 14a is designed to illuminate the entire outermost boundary region 16a in at least one operating state.

[0042] The mounting plate 12a is designed to transmit at least a large part of the radiation, at least in the outermost edge area 16a.

[0043] Figure 2 shows a schematic sectional view from the side, at least of a part of the cooktop device 10a.

[0044] The outermost edge region 16a is formed as a volume of the mounting plate 12a at an outermost edge 36a of the mounting plate 12a. The outermost edge region 16a has at least one side surface 42a of the mounting plate 12a. The side surface 42a extends at least substantially perpendicular to the top surface 22a.

[0045] The outermost edge region 16a has at least one edge 46a of the mounting plate 12a. The edge 46a is formed between the top surface 22a and the side surface 42a.

[0046] The radiation source unit 14a is arranged below the mounting plate 12a.

[0047] The cooktop device 10a has at least one radiation output unit 62a. The radiation output unit 62a is designed to emit radiation and make it available at the base plate 12a. The radiation output unit 62a is designed to output the radiation to the base plate 12a.

[0048] The radiation output unit 62a is arranged below the mounting plate 12a. The radiation output unit 62a is designed to emit the radiation at least substantially perpendicular to the upper surface 22a of the mounting plate 12a.

[0049] The radiation output unit 62a comprises at least the radiation source unit 14a. The radiation output unit 62a in this case comprises at least one radiation guidance element 64a.

[0050] The radiation source unit 14a is designed to emit radiation at least substantially parallel to the upper surface 22a. The radiation guidance element 64a is designed as a radiation deflection element and is designed at least to change the direction of propagation of the radiation. The radiation guidance element 64a is designed to deflect the radiation. The radiation guidance element 64a is designed to change the direction of propagation of the radiation by at least substantially 90°.

[0051] The cooktop device 10a has at least one light guide 32a for radiation guidance from the radiation source unit 14a to the outermost edge region 16a. The radiation guidance element 64a is designed in this case as the light guide 32a.

[0052] The cooktop device 10a has at least one blocking element 30a for blocking radiation outside the outermost edge region 16a. The blocking element 30a is arranged below the mounting plate 12a. The blocking element 30a extends along the mounting plate 12a outside the outermost edge region 16a. The blocking element 30a limits the outermost edge region 16a at least on one side. The blocking element 30a limits the outermost edge region 16a opposite the side surface 42a at least for a view in the direction 66a perpendicular to the surface 22a. The blocking element 30a is designed as a blocking pressure.

[0053] The outermost edge region 16a has a chamfered area 26a of the mounting plate 12a. The chamfered area 26a is formed between the top surface 22a and the side surface 42a of the mounting plate 12a. The chamfered area 26a is formed as the chamfered edge 46a.

[0054] Alternatively or additionally, the outermost edge area 16a can have a rounded area of ​​the mounting plate 12a, which is in particular designed as a rounded edge 46a.

[0055] The emission from radiation source unit 14a contains at least one status information.

[0056] The radiation source unit 14a is designed to output status information at least by means of a radiation color. Alternatively or additionally, the status information can be output by a pulse duration and / or an output pattern of the radiation. Alternatively or additionally, the status information can be output by the intensity of the radiation.

[0057] The status information can be configured as information regarding a run-on mode of the fan unit after switching off the power transfer unit 56a.

[0058] Alternatively or additionally, the status information can be designed as information regarding an extraction stage of the fan unit.

[0059] Alternatively or additionally, the status information can be designed as a maintenance notice, for example regarding a filter change and / or filter cleaning.

[0060] Alternatively or additionally, the status information can indicate a switched-off state of the cooktop 50a, in which a cover element 20a is inserted in the recess 18a.

[0061] Alternatively or additionally, the status information can be any status information relating to the cooktop device 10a and / or the cooktop 50a that appears meaningful to the person skilled in the art.

[0062] The cooktop device 10a has a control unit 38a, which is designed to control the radiation source unit 14a to output status information. The control unit 38a is designed in this case as at least one electronic circuit board 40a.

[0063] The control unit 38a can, for example, be connected electronically and / or electrically to an operator interface (not shown) of the cooktop 50a and / or to at least one further control unit (not shown) of the cooktop 50a and / or to at least one sensor unit (not shown) of the cooktop 50a for the purpose of determining the status information.

[0064] The cooktop device 10a has at least one housing 70a for receiving the radiation source unit 14a. The at least one housing 70a is provided for receiving the radiation guidance element 64a, in this case the light guide 32a. The at least one housing 70a is provided for receiving the control unit 38a.

[0065] The mounting plate 12a has a surface treatment 44a in the outermost edge area 16a. The surface treatment 44a is shown here as an example of a matting 48a.

[0066] Alternatively or additionally, the mounting plate 12a can have any other surface treatment that appears sensible to a person skilled in the art and / or a volume treatment in the outermost edge area 16a.

[0067] Figure 3 The hob 50a is shown in a closed state of the extractor hood unit.

[0068] The cooktop device 10a includes the cover element 20a, which can be received within the recess 18a with at least substantially no overlap. The cover element 20a is received in the recess 18a when the extractor hood is closed. The cover element 20a can be received in the recess 18a to close the extraction duct.

[0069] The cover element 20a can be positively fitted into the recess 18a. The cover element 20a is designed in a plate-like form.

[0070] The cover element 20a is opaque to the radiation from the radiation source unit 14a. The cover element 20a is designed to block radiation from the radiation source unit 14a emanating from at least one side surface 42a.

[0071] The cover element 20a can be received in the recess 18a in a viewing direction 68a parallel to the top surface 22a, at least substantially without overlap. The cover element 20a can be received completely in the recess 18a. The cover element 20a can be received flush with the mounting plate 12a, in particular with the top surface 22a, in the recess 18a.

[0072] Figure 5 Figure 1 shows a flowchart of a method for operating the cooktop device 10a, wherein the at least one radiation source unit 14a radiates through the outermost edge area 16a of the mounting plate 12a.

[0073] The process includes an emission step 100a in which the radiation source unit 14a emits radiation. In emission step 100a, the radiation source unit 14a emits radiation through the outermost boundary region 16a.

[0074] The procedure includes a status output step 102a, in which the radiation source unit 14a changes the radiation to an output of status information, for example, a status information changed with respect to a status information output in emission step 100a.

[0075] Of the objects that appear multiple times in the figures, only one is marked with a reference symbol.

[0076] In Figures 6 to 9 Two further embodiments of the invention are shown. The following descriptions are essentially limited to the differences between the embodiments, whereby with regard to identical components, features and functions, reference is made to the description of the embodiment of Figures 1 to 5 Reference can be made to. To distinguish the embodiments, the letter a in the reference numerals of the embodiment is used in the Figures 1 to 5by the letter b in the reference numerals of the embodiment of the Figures 6 and 7 and by the letter c in the reference numerals of the embodiment of the Figures 8 and 9 replaced. With regard to identically designated components, especially those with the same reference numerals, reference can generally also be made to the drawings and / or the description of the embodiment of the Figures 1 to 5 be referred.

[0077] Figure 6 Figure 1 shows a cooktop device 10b with at least one radiation guidance element 64b in an alternative embodiment, in an open state of a cooktop extractor unit (not shown) which has the cooktop device 10b.

[0078] The cooktop device 10b has at least one reflector 34b for radiation guidance from a radiation source unit 14b to an outermost edge region 16b. The radiation guidance element 64b is designed as the at least one reflector 34b.

[0079] Figure 7 Figure 10b shows the cooktop device in a closed state of the extractor hood unit.

[0080] Figure 8 Figure 1 shows a cooktop device 10c with a radiation output unit 62c in an alternative embodiment, in an open state of a cooktop extractor unit (not shown) which has the cooktop device 10c.

[0081] The radiation output unit 62c is designed without a radiation guidance element. A radiation path from a radiation source unit 14c of the cooktop device 10c to a mounting plate 12c of the cooktop device 10c is designed without any change in direction. The radiation source unit 14c is designed to emit radiation at least substantially perpendicular to a top surface 22c of the mounting plate 12c.

[0082] Figure 9Figure 10c shows the cooktop device in a closed state of the extractor hood unit. Reference sign

[0083] 10 Cooktop device 12 Mounting plate 14 Radiation source unit 16 Outermost edge area 18 Recess 20 Cover element 22 Top 24 Radiation element 26 Beveled area 28 Extraction opening 30 Locking element 32 Light guide 34 Reflector 36 Outermost edge 38 Control unit 40 Electronic board 42 Side surface 44 Surface treatment 46 Edge 48 Matting 50 Cooktop 52 Extractor cooktop 54 Mounting unit 56 Energy transfer unit 58 Energy transfer element 60 Energy transfer zone 62 Radiation output unit 64 Radiation guide element 66 Direction 68 Viewing direction 70 Housing 100 Emission step 102 Status output step

Claims

1. Cooking hob device (10a; 10b; 10c) with a mounting plate (12a; 12b; 12c) and with a radiation source unit (14a; 14b; 14c), characterized by the fact that the radiation source unit (14a; 14b; 14c) is provided for radiation through an outermost edge region (16a; 16b; 16c) of the mounting plate (12a; 12b; 12c).

2. Hob device (10a; 10b; 10c) according to claim 1, characterized by the fact that the radiation source unit (14a; 14b; 14c) is arranged below the mounting plate (12a; 12b; 12c).

3. Hob device (10a; 10b; 10c) according to one of the preceding claims, characterized by the fact that the outermost edge area (16a; 16b; 16c) has a chamfered area (26a; 26b; 26c) and / or a rounded area of ​​the mounting plate (12a; 12b; 12c).

4. Cooktop device (10a; 10b; 10c) according to one of the preceding claims, characterized by the fact thatthe mounting plate (12a; 12b; 12c) has a recess (18a; 18b; 18c) to which the outermost edge area (16a; 16b; 16c) borders.

5. Cooktop device (10a; 10b; 10c) according to claim 4, characterized by the fact that the recess (18a; 18b; 18c) is designed as a suction opening (28a; 28b; 28c).

6. Hob device (10a; 10b; 10c) according to claim 4 or 5, characterized by at least one cover element (20a; 20b; 20c) which can be accommodated within the recess (18a; 18b; 18c) at least substantially without overlap.

7. Cooktop device (10a; 10b; 10c) according to one of the preceding claims, characterized by the fact that the emission of the radiation source unit (14a; 14b; 14c) has at least some status information.

8. Cooktop device (10a; 10b; 10c) according to one of the preceding claims, characterized by the fact thatthe mounting plate (12a; 12b; 12c) has a volume treatment and / or surface treatment (44a; 44b; 44c), in particular a matting (48a; 48b; 48b), in the outermost edge area (16a; 16b; 16c).

9. Hob device (10a; 10b) according to one of the preceding claims, characterized by at least one optical fiber (32a) and / or one reflector (34b) to a radiation guide from the radiation source unit (14a; 14b) to the outermost edge region (16a; 16b).

10. Cooktop (50a), in particular extractor cooktop (52a), with a cooktop device (10a; 10b; 10c) according to one of the preceding claims.

11. Method for operating a cooktop device (10a; 10b; 10c), in particular according to one of claims 1 to 9, wherein at least one radiation source unit (14a; 14b; 14c) radiates through an outermost edge region (16a; 16b; 16c) of a mounting plate (12a; 12b; 12c).

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