Cooking system

The cooking system addresses inflexible temperature compensation by attaching a compensation unit via a fastening unit, reducing thermal gradients and stresses, enabling cost-effective and durable designs with varied materials.

EP3685632B1Active Publication Date: 2026-05-06BSH HAUSGERATE GMBH
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Patent Information

Authority / Receiving Office
EP · EP
Patent Type
Patents
Current Assignee / Owner
BSH HAUSGERATE GMBH
Filing Date
2018-09-06
Publication Date
2026-05-06

AI Technical Summary

Technical Problem

Existing cooking systems lack flexibility in attaching temperature compensation units, leading to inflexible designs and increased material and cost inefficiencies due to extensive temperature gradients and thermal stresses.

Method used

A cooking system with a fastening unit that secures a temperature compensation unit to the mounting plate via a material-bonded IP connection, allowing for subsequent attachment, which reduces thermal gradients and stress, enabling the use of materials with lower thermal shock resistance and reducing costs.

Benefits of technology

The solution provides a flexible and cost-effective design that withstands extreme thermal conditions, minimizing damage and thermal stresses while allowing for a wide range of materials, including those with low thermal shock resistance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a cooking system (10a-c) comprising at least one positioning plate (12a-c) which is provided for positioning at least one cooking vessel (14a-c) in at least one positioning region (16a-c) for heating, and at least one temperature compensation unit (18a-c) provided for substantially reducing at least one temperature gradient of the positioning plate (12a-c) between the positioning region (16a-c) and at least one region (20a-c) surrounding the positioning region (16a-c). The aim of the invention is to provide a generic system with improved characteristics in terms of flexibility. To this end, the cooking system (10a-c) comprises a fixing unit (22a-c) that fixes the temperature compensation unit (18a-c) in at least one mounted state on the positioning plate (12a-c).
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Description

[0001] The invention relates to a cooking system according to the preamble of claim 1 and a method for assembling a cooking system according to the preamble of claim 12. A cooking system is already known from EP 3 223 586 A1, which has a mounting plate designed as a cooktop plate, intended for placing cooking utensils in a mounting area for heating. The cooking system also has a temperature compensation unit which, in an operating state, significantly reduces the temperature gradient of the cooktop plate between the mounting area and an area surrounding the mounting area. Viewed perpendicularly, the temperature compensation unit extends concentrically around the mounting area on a main plane of the cooktop plate and is designed as a coating of the mounting plate.In such a design, the temperature compensation unit must be attached during the manufacturing of the cooktop by coating the mounting plate.

[0002] DE 101 27 051 A1 discloses a cooking system according to the preamble of claim 1.

[0003] The object of the invention is, in particular, to provide a generic system with improved flexibility. This object is achieved according to the invention by the features of claims 1 and 11, while advantageous embodiments and further developments of the invention can be found in the dependent claims.

[0004] It is proposed that the cooking system shall have at least one fastening unit which secures the temperature compensation unit to the mounting plate in at least one mounted state with a material-bonded IP connection.

[0005] The design according to the invention allows for a high degree of flexibility. In particular, the temperature compensation unit can be subsequently attached to the mounting plate using the mounting unit, which would allow the temperature compensation unit to be sold, for example, as a retrofit kit. The temperature compensation unit can improve the thermal and / or structural behavior of the mounting plate, especially near the mounting area. In particular, a durable and / or cost-effective design can be achieved. A high temperature gradient can be avoided, thereby reducing the likelihood of damage to the mounting plate. In particular, low thermal stresses on the mounting plate can be achieved, which would allow the mounting plate to be made of different materials.Due to the low thermal stresses of the mounting plate, it can withstand a wide range of extreme thermal stresses, particularly thermal shock conditions, and / or pass important application tests. The mounting plate can be made largely from materials with low thermal shock resistance, resulting in significantly lower costs. Compared to a temperature compensation unit, which, when viewed perpendicular to a main plane of the mounting plate, extends over a large portion of its surface area, this design offers a material-saving and / or cost-effective solution.

[0006] The term "cooking system" shall be understood to mean, in particular, a system comprising at least one cooking appliance intended for cooking food, such as an oven and / or a cooktop and / or a microwave oven, and which may, in particular, additionally comprise at least one further component that is designed differently from a cooking appliance, such as, in particular, a cleaning appliance and / or a refrigeration appliance and / or a mobile appliance. The cooking system is specifically designed to include at least one component intended for arrangement in a kitchen. In particular, the cooking system may comprise at least one worktop and / or at least one cooktop with at least one mounting plate designed as a cooktop plate, which may, in particular, be arranged in at least one recess in the worktop.Alternatively or additionally, the cooking system could at least have a work surface, which could in particular form the mounting plate and below which, in a built-in position, at least one heating unit of the cooking system could be arranged.

[0007] The term "installation area" is understood to mean, in particular, a spatial area within which, in an installed position, at least a portion of the installation plate is arranged and which, in particular, extends vertically above and below the portion in the installed position. In the installation area, at least one heating unit is arranged, which is intended, in particular, for heating the cooking cookware placed in the installation area. The vertical direction is, in particular, oriented at least substantially perpendicular to a principal plane of extension of the installation plate. Viewed perpendicularly to a principal plane of extension of the installation plate, the installation area could, in particular, have a shape that is at least substantially circular.Alternatively, when viewed perpendicularly to a principal extension plane of the mounting plate, the installation area could, in particular, have a shape that is at least substantially angular, especially n-sided, and / or elliptical and / or oval. A "principal extension plane" of an object is understood to be, in particular, a plane that is parallel to a largest side face of the smallest imaginary geometric cuboid that just completely encloses the object, and in particular passes through the center of the cuboid.

[0008] The cooking system includes, in particular, at least one heating unit, which is specifically designed to heat the cooking cookware placed in the installation area. Specifically, when viewed perpendicularly to a main plane of the installation plate, the heating unit is arranged in at least one mounted position within the installation area. In a recessed position, the heating unit is arranged, in particular, vertically below the installation plate. In this context, a "heating unit" is understood to mean, in particular, a unit designed to convert energy, preferably electrical energy, into heat and, in particular, to supply it to at least one cooking cookware item. Advantageously, the heating unit is designed as an induction heating unit.

[0009] The term "surrounding area" of the installation area is understood to mean, in particular, a spatial area within which, in an installed position, at least one further sub-area of ​​the mounting plate is arranged. This sub-area is located adjacent to, and in particular borders, the sub-area of ​​the mounting plate located in the installation area, and extends, in particular, in a vertical direction above and below, the other sub-area. The installation area and the surrounding area are arranged adjacent to each other in horizontal directions that are aligned at least substantially parallel to a main direction of extension of the mounting plate and, in particular, directly adjoin each other.The surrounding area encloses, and in particular surrounds, the installation area with respect to at least one center-of-gravity axis of the installation area by an angular range of at least 270°, in particular at least 300°, advantageously at least 330°, and preferably at least 350°. The center-of-gravity axis of the installation area is, in particular, oriented at least substantially parallel to the vertical direction and / or at least substantially perpendicular to the main extension plane of the installation plate. In particular, the center-of-gravity axis passes through a geometric center point and / or center of gravity of the sub-area of ​​the installation plate.

[0010] In at least one horizontal direction, aligned at least substantially parallel to the main plane of extension of the mounting plate, the surrounding area extends, particularly from a lateral boundary of the mounting area, over a distance of a maximum of 100 mm, more particularly a maximum of 50 mm, advantageously a maximum of 20 mm, particularly advantageously a maximum of 10 mm, and preferably a maximum of 5 mm. For example, the mounting area and the surrounding area could be arranged at least substantially concentrically with each other. The horizontal direction is, in particular, aligned at least substantially perpendicular to the vertical direction. In particular, the horizontal direction, especially extending from the center of gravity axis of the mounting area, is aligned at least substantially parallel to the main plane of extension of the mounting plate.The term "essentially parallel" here refers in particular to an alignment of a direction relative to a reference direction, especially in a plane, wherein the direction has a deviation from the reference direction of particularly less than 8°, advantageously less than 5°, and most advantageously less than 2°. The term "essentially perpendicular" here refers in particular to an alignment of a direction relative to a reference direction, wherein the direction and the reference direction, especially when considered in a plane, form an angle of 90°, and the angle has a maximum deviation of particularly less than 8°, advantageously less than 5°, and most advantageously less than 2°.

[0011] The mounting plate could, for example, be made at least predominantly of glass and / or glass-ceramic and / or Neolith and / or Dekton and / or wood and / or marble and / or stone, in particular natural stone, and / or laminate and / or metal and / or plastic and / or ceramic. "At least predominantly" is understood to mean, in particular, a proportion, especially a mass fraction and / or volume fraction, of at least 70%, particularly at least 80%, advantageously at least 90%, and preferably at least 95%. The mounting plate could, for example, be designed as a section of a worktop within the cooking system. Alternatively or additionally, the mounting plate could be designed as a cooktop surface.The mounting plate designed as a cooktop plate could, in particular, form at least part of a cooktop outer housing and, in particular, together with at least one outer housing unit with which the mounting plate designed as a cooktop plate could be connected in at least one mounted state, form the cooktop outer housing to at least a large extent.

[0012] The temperature compensation unit is specifically designed to actively reduce the temperature gradient, particularly in a manner exceeding the reduction achieved by at least one material of the mounting plate. According to the invention, the temperature compensation unit is designed to adjust the temperature gradient to a value of at most 50% of the temperature gradient value of the configuration without the temperature compensation unit, compared to an embodiment without the unit.In comparison to a configuration without the temperature compensation unit, it would be conceivable to adjust the temperature gradient, advantageously at each point on the mounting plate located in the surrounding area, to a value of at most 40%, advantageously at most 30%, particularly advantageously at most 20%, preferably at most 10%, and most preferably at most 5% of a temperature gradient value of the configuration without the temperature compensation unit. The temperature compensation unit is specifically designed to reduce and / or adjust the temperature gradient radially outwards from a lateral boundary of the mounting area, particularly in a horizontal direction extending from the center of gravity axis of the mounting area towards the lateral boundary of the mounting area.According to the invention, the temperature compensation unit is designed to reduce at least some of the heat emanating from the cooking vessel, which could be caused by heating the cooking vessel placed in the installation area by means of the heating unit, and / or to prevent it from reaching the installation plate. In particular, the temperature compensation unit could, in addition to reducing the heat emanating from the cooking vessel, be designed to reduce heat emanating from the heating unit, which could, for example, be caused by a heated heating element of the heating unit, and / or to at least partially prevent it from reaching the installation plate, thereby avoiding a reduction in the heating power of the heating unit and / or ensuring a continuous supply of heating energy provided by the heating unit.

[0013] In particular, the temperature compensation unit has a thermal conductivity of at least 10 W / (m*K), preferably at least 50 W / (m*K), advantageously at least 100 W / (m*K), particularly advantageously at least 150 W / (m*K), preferably at least 200 W / (m*K), and particularly preferably at least 230 W / (m*K). The temperature compensation unit is specifically designed to reduce the temperature gradient due to thermal expansion and / or the thermal conductivity of the unit itself. The unit could also be designed to extract heat from the area surrounding the installation site and / or to cool the area surrounding the installation site.Alternatively or additionally, the temperature compensation unit could be designed to reduce the temperature gradient by heating the unit itself, and in particular, the unit could be designed to supply heat to and / or heat the area surrounding the installation site. The temperature compensation unit could, for example, be heated by at least one induction heating unit and / or at least one resistance heating unit.

[0014] For example, the temperature compensation unit could be free of metallic material, especially metallic particles, in order to prevent any interference with the temperature compensation unit from inductive heating of the cookware placed in the installation area, particularly by means of the heating unit. Alternatively or additionally, the cooking system could have at least one shielding unit, which could be designed to shield the temperature compensation unit, at least substantially, from radiation, especially electromagnetic radiation, which could be provided by the heating unit. The shielding unit could, for example, have at least one Faraday cage, which could be designed to shield the temperature compensation unit.

[0015] In particular, the temperature compensation unit is designed to adjust the temperature gradient of the mounting plate between the mounting area and the surrounding area in a horizontal direction aligned parallel to a main extension plane of the mounting plate to a maximum of 100 K / mm, particularly to a maximum of 50 K / mm, advantageously to a maximum of 25 K / mm, particularly advantageously to a maximum of 10 K / mm, preferably to a maximum of 7 K / mm, and most preferably to a maximum of 5 K / mm. When viewed perpendicular to a main extension plane of the mounting plate, the temperature compensation unit is arranged concentrically around the mounting area.

[0016] The term "mounting unit" shall be understood to mean, in particular, a unit that is designed differently from the mounting plate and the temperature compensation unit, and which, in at least one assembled state, fastens the temperature compensation unit to the mounting plate. Specifically, the mounting unit is designed differently from a coating, printing, or painting of the mounting plate. A one-piece design of the mounting unit with the mounting plate and / or the temperature compensation unit is specifically excluded. For example, the mounting unit could be made, at least to a large extent, from at least one material, which could be different from the material from which the mounting plate and / or the temperature compensation unit could be made, at least to a large extent.

[0017] For example, the fastening unit could be arranged on a side of the temperature compensation unit facing away from the mounting plate in at least one assembled state, and in particular press the temperature compensation unit against the mounting plate.

[0018] According to the invention, the fastening unit attaches the temperature compensation unit to the mounting plate by means of at least one adhesive bond. In one installation position, the fastening unit is arranged, in particular, at least to a large extent between the mounting plate and the temperature compensation unit.

[0019] The term "intended" is to be understood in particular as specifically designed and / or equipped. The fact that an object is intended for a specific function is to be understood in particular as the object fulfilling and / or performing this specific function in at least one application and / or operating state. For example, the mounting unit could attach the temperature compensation unit to the mounting plate in at least one assembled state by means of a force-fit and form-fit connection. According to the invention, the mounting unit attaches the temperature compensation unit to the mounting plate at least by means of a material bond, specifically an adhesive bond, which in particular enables high stability. Furthermore, it is proposed that the mounting unit consist at least to a large extent of a thermally conductive silicone.In particular, the fastening unit has a thermal conductivity of at least 0.1 W / (m*K), more particularly at least 0.2 W / (m*K), advantageously at least 0.5 W / (m*K), particularly advantageously at least 1 W / (m*K), preferably at least 2 W / (m*K), and most preferably at least 2.6 W / (m*K). This allows for a particularly cost-effective design.

[0020] Furthermore, it is proposed that the cooking system comprises at least one insulation unit which, in the assembled state, thermally insulates at least two sections of the mounting unit from each other. In particular, when viewed perpendicularly to a principal plane of the temperature compensation unit, the insulation unit is arranged between the sections of the mounting unit. Specifically, when viewed perpendicularly to a principal plane of the temperature compensation unit, the insulation unit is surrounded by the mounting unit over an angular range of at least 180°, particularly at least 270°, advantageously at least 300°, most advantageously at least 330°, and preferably at least 350° with respect to any point on the insulation unit.The insulation unit has a thermal conductivity of at most 0.05 W / (m*K), particularly at most 0.01 W / (m*K), advantageously at most 0.005 W / (m*K), and preferably at most 0.001 W / (m*K). When viewed perpendicularly to a main plane of the mounting plate, the sections of the temperature compensation unit are arranged concentrically around the mounting area. Specifically, when viewed perpendicularly to a main plane of the mounting plate, the insulation unit is arranged concentrically around a first section. Specifically, when viewed perpendicularly to a main plane of the mounting plate, a second section is arranged concentrically around the insulation unit. For example, the insulation unit could consist at least largely of silicone and / or air.This allows for a particularly effective reduction of thermal stresses, as the results of investigations have shown particular advantages over a continuous temperature compensation unit extending over a large part of the mounting plate.

[0021] Furthermore, it is proposed that the temperature compensation unit, in its assembled state, has a thickness perpendicular to the mounting plate of at least 0.1 mm, in particular at least 0.2 mm, advantageously at least 0.3 mm, particularly advantageously at least 0.5 mm, preferably at least 0.7 mm, and most preferably at least 1 mm. In particular, the temperature compensation unit has a thickness of at most 4 mm, in particular at most 3.5 mm, advantageously at most 3 mm, particularly advantageously at most 2.5 mm, preferably at most 2.2 mm, and most preferably at most 2 mm. This allows, in particular, for easy handling of the temperature compensation unit and / or provides a stable temperature compensation unit.

[0022] Furthermore, it is proposed that the temperature compensation unit be made at least predominantly of at least one metal. Alternatively or additionally, the temperature compensation unit could, for example, consist at least predominantly of at least one plastic, which could be thermally conductive. For example, the temperature compensation unit could be made at least predominantly of aluminum and / or steel and / or copper. Alternatively or additionally, the temperature compensation unit could have at least one base body and at least one coating applied to the base body, which could be made in particular of various thermally conductive materials, such as various metals and / or various plastics. This would allow for particularly high stability.

[0023] For example, the temperature compensation unit could be arranged on the top side of the mounting plate in at least one assembled state, which could be facing an operator. Preferably, the temperature compensation unit is arranged on the underside of the mounting plate in the assembled state. The "underside" of the mounting plate is understood to be, in particular, a side of the mounting plate facing away from an operator in the assembled state, which is not visible and / or concealed and / or inaccessible to an operator, especially in at least one operating state. This allows the temperature compensation unit to be arranged in a protected manner, thereby preventing, in particular, the unintentional detachment of the temperature compensation unit from the mounting plate, for example, by an operator handling it during operation.

[0024] In a further aspect of the invention, which can be considered on its own or in conjunction with other aspects, it is proposed that the temperature compensation unit, in at least one assembled state, is designed to hold at least one further unit. In particular, in at least one assembled state, the temperature compensation unit absorbs at least a large portion of the weight force of the further unit and / or transmits, in particular at least a large portion, the weight force to the mounting unit and / or, more specifically, via the mounting unit, to the base plate. In one installation position, the further unit is arranged, particularly with respect to the vertical direction, below the temperature compensation unit. This allows, in particular, a reduced number of components and / or a reduced inventory.In particular, the temperature compensation unit can have several main functions, which eliminates the need for additional components.

[0025] Furthermore, it is proposed that the cooking system include an additional unit designed as a device housing, specifically a heating unit housing. A "device housing" is understood to mean, in particular, a unit that at least partially contains, surrounds, and / or encloses at least one device, such as at least one heating unit. Alternatively or additionally, the additional unit could be designed as at least one shielding element and / or at least one partition element. Alternatively or additionally, the additional unit could, for example, be designed as a sensor element. This eliminates the need for separate mounting of the device housing, resulting in a simple, compact, and / or cost-effective design.

[0026] Furthermore, it is proposed that the temperature compensation unit, when viewed perpendicularly to a principal plane of extension of the temperature compensation unit, has a diameter of a maximum of 0.6 m, in particular a maximum of 0.55 m, advantageously a maximum of 0.5 m, particularly advantageously a maximum of 0.45 m, and preferably a maximum of 0.4 m. The term "diameter" of an object, particularly when viewed perpendicularly to a principal plane of extension of the object, is understood to mean the diameter and / or maximum extent of the smallest imaginary geometric circle that just encloses the object.In particular, when viewed perpendicularly to a main plane of extension, the temperature compensation unit has a diameter of at least 0.1 m, preferably at least 0.125 mm, advantageously at least 0.15 m, particularly advantageously at least 0.175 m, and preferably at least 0.2 m. This allows for a particularly compact design. In particular, it enables a particularly effective reduction of thermal stresses, as investigations have shown particular advantages over a continuous temperature compensation unit extending over a large portion of the mounting plate.

[0027] In a further aspect of the invention, which can be considered on its own or together with other aspects of the invention, it is proposed that the cooking system comprises at least one further temperature compensation unit, which, when viewed perpendicularly to a main extension plane of the mounting plate, is arranged at a distance from the temperature compensation unit and which is designed to substantially reduce at least one temperature gradient of the mounting plate between at least one further mounting area of ​​the mounting plate and at least one area surrounding the further mounting area. The mounting area and the further mounting area are specifically designed for mounting at least two, in particular different, cooking vessels.In particular, when viewed perpendicularly to a main extension plane of the mounting plate, the temperature compensation unit and the further temperature compensation unit have a minimum distance of at least 0.05 m, particularly at least 0.1 m, advantageously at least 0.15 m, particularly advantageously at least 0.2 m, and preferably at least 0.25 m. The minimum distance between the temperature compensation unit and the further temperature compensation unit is measured, in particular, between at least one area, in particular an edge area, of the temperature compensation unit closest to the further temperature compensation unit and at least one area, in particular an edge area, of the further temperature compensation unit closest to the temperature compensation unit.This allows for a cost-effective and / or material-saving design, particularly in comparison with a design in which the temperature compensation unit extends over the entire surface area of ​​the mounting plate.

[0028] When viewed perpendicular to a principal plane of extension of the temperature compensation unit, the unit could, in particular, have a ring-shaped form. Alternatively or additionally, when viewed perpendicular to a principal plane of extension, the unit could, for example, have a star-shaped, wave-shaped, and / or serpentine-shaped form. The unit could be manufactured, for example, by stamping and / or embossing. This allows, in particular, a large heat exchange surface area to be provided, thereby advantageously reducing thermal stresses on the mounting plate. In particular, this enables a high degree of flexibility with regard to design variety and / or an advantageous design.

[0029] Particularly high flexibility can be achieved by a method for assembling a cooking system with at least one mounting plate, which is designed for placing at least one cooking vessel in at least one mounting area for heating, and with at least one temperature compensation unit, which is designed to significantly reduce at least one temperature gradient of the mounting plate between the mounting area and at least one area surrounding the mounting area, wherein the temperature compensation unit is attached to the fully installed mounting plate, particularly when it is in a mounting position. In particular, the temperature compensation unit is designed as a retrofit component and is intended for subsequent mounting on the mounting plate. The cooking system is not intended to be limited to the application and embodiment described above.In particular, the cooking system may have a different number of individual elements, components and units than the number specified herein in order to fulfill a function described herein.

[0030] Further advantages become apparent from the following drawing description. The drawing illustrates exemplary embodiments of the invention. The drawing, the description, and the claims contain numerous features in combination. They show:

[0031] Fig. 1 shows a cooking system with a mounting plate, a temperature compensation unit, another temperature compensation unit, a control unit, a user interface, and two heating units in a schematic top view; Fig. 2 shows a section of the cooking system in a schematic sectional view; Fig. 3 shows a diagram in which a stress acting on the mounting plate is plotted against a distance from a mounting area in a schematic representation; Fig. 4 shows a section of an alternative cooking system in a schematic sectional view; and Fig. 5 shows a section of an alternative cooking system in a schematic sectional view.

[0032] Fig. 1Figure 1 shows a cooking system 10a, which is designed as an induction cooking system. The cooking system 10a has a mounting plate 12a. In its assembled state, the mounting plate 12a forms a viewing surface, which, in its assembled state, is oriented towards the operator. The mounting plate 12a is intended for placing a cooking vessel 14a in a mounting area 16a for heating (see Figure 10a). Figs. 1 and 2 ). In the present embodiment, the mounting plate 12a is designed as a work surface.

[0033] The cooking system 10a has at least one heating unit 44a (see Figs. 1 and 2In the present embodiment, the cooking system 10a has one heating unit 44a. Alternatively, the cooking system 10a could, for example, have a larger number of heating units 44a, such as at least two, in particular at least four, advantageously at least eight, particularly advantageously at least twelve, and preferably a plurality of heating units 44a. The heating units 44a could, for example, be arranged in the form of a matrix.

[0034] The heating unit 44a is installed below the mounting plate 12a, specifically below the mounting area 16a. The heating unit 44a is designed to heat cooking cookware 14a placed on the mounting plate 12a above the heating unit 44a, and particularly within the mounting area 16a. The heating unit 44a is designed as an induction heating unit.

[0035] The cooking system 10a has an operator interface 46a for inputting and / or selecting operating parameters, such as heating power and / or heating power density and / or a heating zone. The operator interface 46a is designed to output the value of an operating parameter to an operator.

[0036] The cooking system 10a has a control unit 48a. The control unit 48a is designed to execute actions and / or change settings depending on operating parameters entered via the user interface 46a. In a heating operating state, the control unit 48a regulates the energy supply to the heating unit 44a.

[0037] The cooking system 10a includes a temperature compensation unit 18a. In an operating state, the temperature compensation unit 18a significantly reduces the temperature gradient of the mounting plate 12a between the mounting area 16a and an area 20a surrounding the mounting area 16a. When viewed perpendicularly to a main plane of the mounting plate 12a, the temperature compensation unit 18a is arranged concentrically around the heating unit 44a. In the present embodiment, the temperature compensation unit 18a has an annular shape when viewed perpendicularly to a main plane of the temperature compensation unit 18a.

[0038] In the present embodiment, the temperature compensation unit 18a is largely made of a metal. The temperature compensation unit 18a is designed as a macroscopic component. In its assembled state, the temperature compensation unit 18a has an extension 30a perpendicular to the mounting plate 12a of essentially 1.5 mm.

[0039] When viewed perpendicularly to a principal extension plane of the temperature compensation unit 18a, the temperature compensation unit 18a has a diameter 36a of essentially 0.35 m. When viewed perpendicularly to a principal extension plane of the temperature compensation unit 18a, the temperature compensation unit 18a has an inner diameter 52a of essentially 0.22 m.

[0040] In one installation position, the temperature compensation unit 18a is arranged below the mounting plate 12a. In a mounted state, the temperature compensation unit 18a is arranged on a lower side 32a of the mounting plate 12a.

[0041] The cooking system 10a has a fastening unit 22a (see Fig. 2 The fastening unit 22a secures the temperature compensation unit 18a to the mounting plate 12a in its assembled state. The fastening unit 22a is designed as a single macroscopic component. The fastening unit 22a has a coating that differs from the mounting unit.

[0042] In its assembled state, the fastening unit 22a secures the temperature compensation unit 18a to the mounting plate 12a, at least by means of a material bond. The fastening unit 22a secures the temperature compensation unit 18a to the mounting plate 12a in its assembled state by means of an adhesive bond. In the present embodiment, the fastening unit 22a consists largely of silicone. In its assembled state, the fastening unit 22a is largely positioned between the temperature compensation unit 18a and the mounting plate 12a, particularly with respect to a vertical direction, which is specifically oriented perpendicular to a principal plane of extension of the mounting plate 12a.

[0043] The cooking system 10a has at least one additional heating unit 50a (see below). Fig. 1 ). In the present embodiment, the cooking system 10a has a further heating unit 50a.

[0044] The additional heating unit 50a is arranged in an installation position below the mounting plate 12a, specifically below a further mounting area 40a of the mounting plate 12a. The additional heating unit 50a is designed to heat cooking cookware 14a placed on the mounting plate 12a above the additional heating unit 50a, and particularly within the further mounting area 40a. The additional heating unit 50a is designed as an induction heating unit.

[0045] The cooking system 10a has a further temperature compensation unit 38a. In an operating state, the further temperature compensation unit 38a significantly reduces the temperature gradient of the mounting plate 12a between the further mounting area 40a of the mounting plate 12a and an area 42a surrounding the further mounting area 40a. When viewed perpendicularly to a main plane of extension of the mounting plate 12a, the further temperature compensation unit 38a is arranged concentrically around the further heating unit 50a. In the present embodiment, the further temperature compensation unit 38a has a star-shaped and / or wave-shaped form when viewed perpendicularly to a main plane of extension of the further temperature compensation unit 38a.

[0046] The additional temperature compensation unit 38a is arranged at a distance from the temperature compensation unit 18a when viewed perpendicularly to a main extension plane of the mounting plate 12a. The temperature compensation unit 18a and the additional temperature compensation unit 38a have a minimum distance 54a of essentially 0.16 m when viewed perpendicularly to a main extension plane of the mounting plate 12a.

[0047] In a method for assembling the cooking system 10a, the temperature compensation unit 18a is attached to the fully installed mounting plate 12a, in particular by means of the fastening unit 22a. The further temperature compensation unit 38a is attached to the fully installed mounting plate 12a, in particular by means of a further fastening unit (not shown).

[0048] Fig. 3Figure 1 shows a diagram illustrating how the diameter 36a of the temperature compensation unit 18a affects the thermal load, particularly in the form of thermal stresses, on the mounting plate 12a. The abscissa 56a represents a distance in meters. The ordinate 58a represents a thermal load, particularly in the form of thermal stresses, on the mounting plate 12a in MPa. A center point 60a of the heating unit 44a is located at 0.4 m on the abscissa 56a. In the illustrated embodiment, the heating unit diameter 62a is essentially 0.2 m.

[0049] A dotted line 64a depicts the thermal load on the mounting plate 12a in the absence of the temperature compensation unit 18a. It can be seen that, in the absence of the temperature compensation unit 18a, the thermal load on the mounting plate 12a in the vicinity of the heating unit 44a reaches a maximum value that is greater than in the presence of the temperature compensation unit 18a, regardless of the diameter 36a and / or the surface area of ​​the temperature compensation unit 18a.

[0050] A dashed line 66a represents the thermal load on the mounting plate 12a in the case of the temperature compensation unit 18a, which extends essentially over the entire surface area of ​​the mounting plate 12a. It can be seen that, in the case of the temperature compensation unit 18a, which extends essentially over the entire surface area of ​​the mounting plate 12a, the thermal load on the mounting plate 12a reaches a maximum value in the immediate vicinity of the heating unit 44a, which is lower than in the case of the absence of the temperature compensation unit 18a. However, the thermal load on the mounting plate 12a in the immediate vicinity of the heating unit 44a is greater than with the temperature compensation unit 18a, which is located in the immediate vicinity of the heating unit 44a and, in particular, is limited to this immediate vicinity.

[0051] A line 68a, shown with a dash and dotted pattern, depicts the thermal load on the mounting plate 12a in the case of a large temperature compensation unit 18a, limited to the immediate vicinity of the heating unit 44a, which has a diameter 36a of essentially 0.6 m. It can be seen that, in the case of a large temperature compensation unit 18a limited to the immediate vicinity of the heating unit 44a, the thermal load on the mounting plate 12a in this area reaches a maximum value that is lower than in the case of the absence of the temperature compensation unit 18a and than in the case of the temperature compensation unit 18a extending essentially over the entire surface of the mounting plate 12a. However, the thermal load on the mounting plate 12a in the immediate vicinity of the heating unit 44a is greater than in the case of a small temperature compensation unit 18a limited to the immediate vicinity of the heating unit 44a.

[0052] A solid curve 70a depicts the thermal load on the mounting plate 12a in the case of a small temperature compensation unit 18a, limited to the immediate vicinity of the heating unit 44a, which has a diameter 36a of essentially 0.35 m. It can be seen that, in the case of a small temperature compensation unit 18a limited to the immediate vicinity of the heating unit 44a, the thermal load on the mounting plate 12a reaches its maximum value in an area of ​​the temperature compensation unit 18a facing away from the heating unit 44a. In an area directly adjacent to the heating unit 44a, the thermal load on the mounting plate 12a is low. Compared to the previously described curves 64a, 66a, and 68a, the thermal load on the mounting plate 12a is lowest in the case of a small temperature compensation unit 18a limited to the immediate vicinity of the heating unit 44a.

[0053] In Fig. 4 and5 Two further embodiments of the invention are shown. The following descriptions are essentially limited to the differences between the embodiments, whereby with regard to components, features and functions that remain the same, reference is made to the description of the embodiment of the Figs. 1 to 3 Reference can be made to. To distinguish the embodiments, the letter a in the reference numerals of the embodiment is used in the Figs. 1 to 3 , by the letters b and c in the reference numerals of the embodiment of the Fig. 4 and 5 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 Figs. 1 to 3 be referred.

[0054] Fig. 4Figure 1 shows a section of an alternative cooking system 10b, which includes a base plate 12b and a temperature compensation unit 18b, the latter being installed on the underside 32b of the base plate 12b. The temperature compensation unit 18b is attached to the base plate 12b by means of a fastening unit 22b.

[0055] The cooking system 10b includes a further unit 34b. The temperature compensation unit 18b is designed to hold the further unit 34b in its assembled state. In its assembled state, the temperature compensation unit 18b transmits a weight force of the further unit 34b to the mounting unit 22b. In its assembled state, the mounting unit 22b transmits a weight force of the further unit 34b and a weight force of the temperature compensation unit 18b to the mounting plate 12b.

[0056] The additional unit 34b is designed as a device housing. In the present embodiment, the additional unit 34b is designed as a heating unit device housing. In an assembled state, the additional unit 34b partially surrounds a heating unit 44b.

[0057] For example, the temperature compensation unit 18b and the further unit 34b could be formed in one piece, in particular molded from a single piece. Alternatively or additionally, the temperature compensation unit 18b and the further unit 34b could be connected to each other, for example by means of a material-bonded and / or force-fit and / or form-fit connection.

[0058] Fig. 5Figure 1 shows a section of an alternative cooking system 10c, which includes a base plate 12c and a temperature compensation unit 18c, the latter mounted on the underside 32c of the base plate 12c. The temperature compensation unit 18c is attached to the underside 32c of the base plate 12c by means of a mounting unit 22c.

[0059] The cooking system 10c has an insulation unit 24c. In its assembled state, the insulation unit 24c is arranged between the mounting plate 12c and the temperature compensation unit 18c, specifically with respect to a vertical direction, which is oriented perpendicular to a main extension plane of the mounting plate 12c. In its assembled state, the insulation unit 24c thermally insulates two sub-areas 26c and 28c of the mounting unit 22c from each other.

[0060] The temperature compensation unit 18c has a recess 72c in a region adjacent to the insulation unit 24c in its assembled state. The recess 72c is designed to partially accommodate the insulation unit 24c. In its assembled state, a portion of the insulation unit 24c is located within the recess 72c of the temperature compensation unit 18c. In a first region, where the recess 72c of the temperature compensation unit 18c and / or the insulation unit 24c are located in its assembled state, the temperature compensation unit 18c is positioned at a greater distance from the mounting plate 12c than in a second region adjacent to the first region. Reference sign

[0061] 10 Cooking system 12 Mounting plate 14 Cooking cookware 16 Installation area 18 Temperature compensation unit 20 Surrounding area 22 Mounting unit 24 Insulation unit 26 Partial area 28 Partial area 30 Extent 32 Underside 34 Additional unit 36 ​​Diameter 38 Additional temperature compensation unit 40 Additional installation area 42 Surrounding area 44 Heating unit 46 User interface 48 Control unit 50 Additional heating unit 52 Inner diameter 54 Distance 56 Abscissa axis 58 Ordinate axis 60 Center point 62 Heating unit diameter 64 Trajectory 66 Trajectory 68 Trajectory 70 Trajectory 72 Shape

Claims

1. Cooking system with at least one placement plate (12a-c) which is provided for the placement of at least one item of cookware (14a-c) for heating in at least one placement region (16a-c), and with at least one temperature equalisation unit (18a-c), characterised in that the temperature equalisation unit (18a-c) is provided to reduce at least one temperature gradient of the placement plate (12a-c) between the placement region (16a-c) and at least one region (20a-c) surrounding the placement region (16a-c) and a heat emitted by the item of cookware (14a-c), which heat could result from a heating, by means of a heating unit (44a-c) of the cooking system, of the item of cookware (14a-c) placed in the placement region (16a-c), wherein the temperature equalisation unit (18a-c) is provided to adjust the temperature gradient to a value of at most 50 % of a value of the temperature gradient of an embodiment which has no temperature equalisation unit (18a-c), and characterised by at least one attachment unit (22a-c), which, in at least one assembled state, attaches the temperature equalisation unit (18a-c) at least by way of a material bond to the placement plate (12a-c) by means of an adhesive connection.

2. Cooking system according to claim 1, characterised in that the attachment unit (22a-c) consists, at least for the most part, of silicone.

3. Cooking system according to one of the preceding claims, characterised by at least one insulation unit (24c), which, in the assembled state, thermally insulates at least two subregions (26c, 28c) of the attachment unit (22c) from one another.

4. Cooking system according to one of the preceding claims, characterised in that, in the assembled state, the temperature equalisation unit (18a-c) has an extension (30a-c) perpendicular to the placement plate (12a-c) of at least 0.1 mm.

5. Cooking system according to one of the preceding claims, characterised in that the temperature equalisation unit (18a-c) is made, at least for the most part, of at least one metal.

6. Cooking system according to one of the preceding claims, characterised in that, in the assembled state, the temperature equalisation unit (18a-c) is arranged on an underside (32a-c) of the placement plate (12a-c).

7. Cooking system according to one claim 1, characterised in that the temperature equalisation unit (18b) is provided, in at least one assembled state, to bear at least one further unit (34b).

8. Cooking system according to claim 7, characterised by the further unit (34b), which is embodied as an appliance housing.

9. Cooking system according to one of the preceding claims, characterised in that the temperature equalisation unit (18a-c) has a diameter (36a-c) of at most 0.6 mm when viewed perpendicularly to a main extension plane of the temperature equalisation unit (18a-c).

10. Cooking system according to claim 1, characterised by at least one further temperature equalisation unit (38a-c), which, when viewed perpendicularly to a main extension plane of the placement plate (12a-c), is spaced apart from the temperature equalisation unit (18a-c) and which is provided to substantially reduce at least one temperature gradient of the placement plate (12a-c) between at least one further placement region (40a-c) of the placement plate (12a-c) and at least one region (42a-c) surrounding the further placement region (40a-c).

11. Method for assembling a cooking system (10a-c) according to one of claims 1 to 10, characterised in that the temperature equalisation unit (18a-c) is fastened at least by way of a material bond to the pre-installed placement plate (12a-c) by means of an adhesive connection.

Citation Information

Patent Citations

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