Cooking utensil

Abstract

The embodiment of the utility model provides a cooking utensil. The cooking utensil comprises a first shell, a partition plate, a heat shield unit, a microwave device and a heating assembly. The partition plate is a bare metal plate and defines a cooking cavity with the first shell. The heat shield unit is arranged on the side, away from the cooking cavity, of the partition plate. A mounting cavity is defined by the partition plate and the heat shield unit. The microwave device is used for providing microwaves for the cooking cavity; the heating assembly is arranged in the installation cavity and used for providing heat for the cooking cavity. The partition plate is provided with a plurality of through holes for shielding microwaves, and the plurality of through holes are communicated with the cooking cavity and the mounting cavity. The partition plate can reduce the probability that microwaves in the cooking cavity are transmitted to the mounting cavity and reduce the heating effect of the microwaves in the cooking cavity on the heating assembly, the heating assembly is arranged outside the cooking cavity, the heating assembly does not occupy the space of the cooking cavity, the attractiveness of the cooking cavity is not affected, and food and the like can be prevented from scratching the heating assembly. The partition plate is a bare metal plate, and after the multiple through holes are machined in the partition plate, the risk that the coating falls off due to the high-temperature environment cannot occur.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, and more particularly to a cooking appliance. Background Technology

[0002] In some related technologies, microwave-heating cooking appliances are also equipped with heating elements. These heating elements are located inside the cooking cavity, and the heat from the heating element and microwaves are used together to heat the food, thereby improving cooking efficiency, or the heat from the heating element is used to achieve a grilling function. However, the heating element may spark under the influence of microwaves, affecting the safety of the cooking appliance. Utility Model Content

[0003] In view of this, the present application aims to provide a cooking appliance that can effectively reduce the heating effect of microwaves on the heating components in the cooking cavity, thereby reducing the occurrence of sparking and improving the safety of using the cooking appliance.

[0004] This application provides a cooking utensil, comprising a first shell;

[0005] A partition, which is a bare metal plate, and together with the first shell, forms a cooking cavity;

[0006] A heat insulation cover unit is disposed on the side of the partition away from the cooking cavity, and the partition and the heat insulation cover unit together form an installation cavity;

[0007] A microwave device for supplying microwaves to the cooking cavity;

[0008] A heating element, disposed in the mounting cavity, is used to provide heat to the cooking cavity;

[0009] The partition has multiple through holes for shielding microwaves, and the multiple through holes connect the cooking cavity and the mounting cavity.

[0010] In some implementations, the partition is made of stainless steel.

[0011] In some embodiments, the first shell has an aluminum film layer on its inner surface facing the cooking cavity; and / or, the heat insulation cover unit has an aluminum film layer on its inner surface facing the mounting cavity.

[0012] In some embodiments, the first shell includes a bottom plate and a plurality of side plates, the bottom plate and the partition are arranged at intervals along the height direction of the cooking appliance, the bottom ends of the plurality of side plates are connected to the bottom plate and the top ends are connected to the partition, the bottom plate, the plurality of side plates and the partition together enclose the cooking cavity, and the heating element is located on the top side of the partition.

[0013] In some embodiments, the cooking appliance includes a second shell, the second shell including a top plate portion located above the partition, and the heat insulation cover unit located between the top plate portion and the partition.

[0014] In some implementations, the heating element is a graphene heating element.

[0015] In some implementations, the heating element extends along the left-right direction of the cooking appliance, and both ends of the heating element pass through the heat insulation cover unit along the left-right direction.

[0016] In some embodiments, the cooking appliance includes a plurality of connectors that connect the heat insulation unit and the partition, the plurality of connectors being arranged at intervals along the periphery of the heat insulation unit, the spacing between two adjacent connectors being less than the microwave wavelength.

[0017] In some embodiments, the heat insulation cover unit includes an inner cover and an outer cover, the outer cover covering the outside of the inner cover, and the inner cover and the partition together forming the mounting cavity.

[0018] In some embodiments, the cooking appliance includes heat insulation material disposed between the inner cover and the outer cover.

[0019] The cooking appliance provided in this application embodiment transmits heat generated by the heating element to the cooking cavity through multiple through holes, enabling the food to be heated not only by microwaves but also by the heat provided by the heating element. The through holes serve to shield microwaves, helping to reduce the probability of microwaves from the cooking cavity transmitting to the mounting cavity. This effectively reduces the heating effect of microwaves on the heating element, thereby reducing the occurrence of sparking and improving the safety of the cooking appliance.

[0020] Moreover, the heating element is located in the mounting cavity, which is on the side of the partition away from the cooking cavity. In other words, the heating element is located outside the cooking cavity, so that the heating element will not occupy the space of the cooking cavity and will not affect the aesthetics of the cooking cavity. In addition, it can also prevent food, food containers, etc. from scratching the heating element.

[0021] Furthermore, by setting the partition as a bare metal plate, the surface of the partition is not coated, so there is no risk of the coating peeling off due to high temperature environment after multiple through holes are machined in the partition. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the cooking utensil provided in the embodiments of this application;

[0023] Figure 2 for Figure 1 A cross-sectional view along the left and right directions;

[0024] Figure 3 for Figure 1 An exploded view of the heating element is omitted.

[0025] Figure 4 for Figure 1 A schematic diagram from another perspective, omitting the heating element;

[0026] Figure 5 for Figure 4 Schematic diagram of the cross section at point BB;

[0027] Figure 6 for Figure 4 A cross-sectional view at point CC.

[0028] Explanation of reference numerals in the attached figures

[0029] 1. Cooking appliance; 10. First shell; 10a. Cooking cavity; 10b. Inlet / outlet; 20. Partition; 20a. Through hole; 30. Heat insulation cover unit; 30a. Mounting cavity; 31. Outer cover; 32. Inner cover; 40. Microwave device; 50. Heating element; 51. Tube shell; 60. Connector; 61. First connector; 70. Nut. Detailed Implementation

[0030] The embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but should not be used to limit the scope of this application.

[0031] In the description of the embodiments of this application, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0033] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature and the second feature are in direct contact, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0034] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0035] This application provides a cooking utensil 1, please refer to... Figure 1 , Figure 2 and Figure 3 The cooking appliance 1 includes a first shell 10, a partition 20, and a heat insulation cover unit 30.

[0036] The partition 20 and the first shell 10 together form a cooking cavity 10a.

[0037] The first shell 10 also has a loading / unloading port 10b, and the partition 20 and the loading / unloading port 10b are located on different sides of the first shell 10. For example, if the loading / unloading port 10b is located on the front side of the first shell 10, then the partition 20 can be located on the top side, the left side, or the right side of the first shell 10. In this embodiment, the partition 20 being located on the top side of the first shell 10 is described as an example.

[0038] The heat insulation cover unit 30 is located on the side of the partition 20 away from the cooking cavity 10a, and the partition 20 and the heat insulation cover unit 30 together form the mounting cavity 30a. That is, the mounting cavity 30a and the cooking cavity 10a are located on both sides of the partition 20.

[0039] For example, the cooking appliance 1 includes a microwave device 40 for supplying microwaves to the cooking cavity 10a. That is, the cooking cavity 10a is at least capable of heating food using microwaves.

[0040] For example, such as Figure 1 and Figure 2 As shown, the cooking appliance 1 includes a heating element 50, which is disposed in the mounting cavity 30a and is used to provide heat to the cooking cavity.

[0041] Specifically, the partition 20 has multiple through holes 21 for shielding microwaves, and the multiple through holes 21 connect the cooking cavity 10a and the mounting cavity 30a.

[0042] It should be noted that the heating element 50 is located in the mounting cavity 30a, which means that the heating part of the heating element 50 is located in the mounting cavity 30a, that is, the heating element described below is located inside the mounting cavity 30a.

[0043] In this embodiment, the heat generated by the heating element 50 is transferred to the cooking cavity 10a through multiple through holes 21, allowing the cooking cavity 10a to also use the heat provided by the heating element 50 to heat the food. Heat enters the cooking cavity through numerous through holes 20a on the partition, resulting in higher heating efficiency and improved heat uniformity within the cooking cavity 10a.

[0044] Furthermore, the through hole 21 is used to shield microwaves, which helps to reduce the probability of microwaves in the cooking cavity 10a being transmitted to the mounting cavity 30a. This effectively reduces the heating effect of microwaves in the cooking cavity 10a on the heating element 50, thereby reducing the occurrence of arcing and improving the safety of cooking appliances.

[0045] Furthermore, in this embodiment, the heating element 50 is disposed in the mounting cavity 30a, which is located on the side of the partition 20 away from the cooking cavity 10a. That is, the heating element 50 is disposed outside the cooking cavity 10a, so that the heating element 50 does not occupy the space of the cooking cavity 10a and does not affect the aesthetics of the cooking cavity. In addition, it can also prevent food, food containers, etc. from scratching the heating element 50.

[0046] The specific material of the partition 20 is not limited. For example, the partition 20 can be made of stainless steel, aluminum, etc. It should be noted that since many through holes 20a need to be machined in the partition 20, the surface of the partition 20 should avoid being coated as much as possible.

[0047] For example, the partition 20 is a bare metal plate. That is, the surface of the partition 20 is not coated, so there is no risk of the coating peeling off due to high temperature environment after multiple through holes 20a are machined on the partition 20.

[0048] It should be noted that bare metal sheet refers to metal sheet that has not been coated, electroplated or otherwise surface treated.

[0049] In the embodiment where the partition 20 is made of stainless steel, stainless steel has high hardness and good resistance to deformation, which allows the partition 20 to have good mechanical strength even after multiple through holes 21 are opened. Moreover, stainless steel is corrosion-resistant and high-temperature resistant, which gives the partition 20 good corrosion resistance and high-temperature resistance.

[0050] It should be noted that the heating element 50 provided in this application embodiment can work separately from the microwave device 40, or it can work simultaneously with the microwave device 40. The cooking appliance 1 provided in this application embodiment can be used in cooking appliances 1 that integrate grilling and microwave heating, such as microwave oven-oven combos or microwave-steam-grill combos.

[0051] For example, the maximum size of the through-hole 21 does not exceed 1 / 4 of the microwave wavelength. This is to minimize the possibility of microwaves from the cooking cavity 10a passing through the through-hole 21 to reach the mounting cavity 30a.

[0052] It is understood that the through hole 21 can be circular or polygonal, such as triangle, quadrilateral, pentagon, hexagon, etc. The embodiments of this application do not limit the shape of the through hole 21, as long as the maximum size of the through hole 21 meets the requirements for shielding microwaves.

[0053] In some embodiments, an aluminum film layer is provided on the inner surface of the first shell 10 facing the cooking cavity 10a. The aluminum film layer has a good reflective effect on microwaves, thereby helping to improve microwave heating efficiency.

[0054] In some embodiments, an aluminum film layer is provided on the inner surface of the heat shield unit 30 facing the mounting cavity 30a. The aluminum film layer can reflect heat well, and can transfer the heat from the heating component 50 to the heat shield unit 30, which then enters the cooking cavity 10a through multiple through holes 20a, thereby helping to improve the heating efficiency of the cooking cavity 10a.

[0055] In some embodiments, the first shell 10 includes a bottom plate and a plurality of side plates. The bottom plate and the partition 20 are arranged at intervals along the height direction of the cooking appliance 1. The bottom ends of the plurality of side plates are connected to the bottom plate, and the top ends are connected to the partition 20. The bottom plate, the plurality of side plates and the partition 20 together enclose a cooking cavity 10a. The heating element 50 is located on the top side of the partition 20.

[0056] For example, the height direction is Figure 1 The direction indicated by d1.

[0057] In this embodiment, the bottom plate and the partition 20 are arranged along the height direction, and the partition 20 is located above the bottom plate, so that the cooking cavity 10a and the mounting cavity 30a are arranged along the height direction, and the heat of the heating component 50 is transferred from top to bottom to the cooking cavity 10a.

[0058] The connection method between the side plate and the base plate is not limited. For example, it can be welding, bolt and / or screw connection, riveting, etc., or the base plate and multiple side plates can be integrally formed.

[0059] The connection method between the side plate and the partition 20 is not limited, such as welding, bolt and / or screw connection, riveting, etc.

[0060] The aforementioned side panels may be made of the same or different materials. The bottom plate, side panels, and partition 20 may also be made of the same or different materials.

[0061] For example, in some embodiments, the base plate and / or side plate can be aluminum alloy plate, stainless steel plate, aluminized plate, etc. Here, aluminized plate refers to a plate with an aluminum film layer formed on its surface; the material of the plate is not limited, for example, it can be stainless steel.

[0062] In embodiments where the base plate and side plate are integrally formed, the base plate and side plate are made of the same material.

[0063] In some embodiments, the cooking appliance 1 further includes a second shell, which includes a top plate portion located above the partition 20, and a heat insulation cover unit 30 located between the top plate portion and the partition 20.

[0064] For example, the second shell is generally inverted U-shaped and surrounds the outside of the left side panel, the heat insulation unit 30, and the right side panel of the cooking appliance. The second shell serves as the exterior component of the cooking appliance.

[0065] The location of the microwave device 40 is not limited.

[0066] For example, in some embodiments, the base plate is provided with a microwave feed inlet, and the microwave device 40 is disposed below the base plate.

[0067] In some embodiments, the side plate is provided with a microwave feed inlet, and the microwave device 40 is disposed on the outside of the side plate.

[0068] In some embodiments, the heating element 50 extends along the left-right direction of the cooking appliance 1, and both ends of the heating element 50 pass through the heat insulation cover unit 30 in the left-right direction. This facilitates the connection between the heating element 50 and the external circuitry of the mounting cavity 30a, enabling the heating function of the heating element 50. The heat insulation function of the heat insulation cover unit 30 reduces the possibility of the cable 81 being exposed to heat radiation.

[0069] Furthermore, the heating element 50 extends along the left and right directions of the cooking appliance 1, so that the portion of the heating element 50 extending out of the heat insulation cover unit 30 makes full use of the space in the left and right directions of the cooking appliance 1, which helps to reduce the space occupied by the cooking appliance 1 in the front and back directions.

[0070] In related technologies, the heating element is placed in the cooking cavity, requiring openings in the side wall of the cavity for the heating element to pass through. This can easily lead to microwave leakage at the opening locations. Furthermore, the heating element is prone to arcing. For solutions using graphene heating elements, graphene is even more susceptible to damage during arcing. Related technologies involve encasing the graphene in a microwave-shielding protective shell. The larger outer diameter of this protective shell necessitates larger openings in the cavity wall, potentially further exacerbating microwave leakage.

[0071] In this embodiment, the two ends of the heating element 50 extend out from the heat insulation cover unit 30. Due to the microwave shielding effect of the partition 20, the amount of microwaves reaching the mounting cavity 30a is already very small. Even if holes are made in the heat insulation cover unit 30, the amount of microwave leakage will be very small. Moreover, it can avoid making holes in the side wall of the cooking cavity 30a for the heating element 50 to extend out, thereby helping to reduce microwave leakage.

[0072] For example, the left and right directions are Figure 1 The direction indicated by d2 in the middle.

[0073] For example, the front-back direction is Figure 1 The direction indicated by d3 in the middle.

[0074] In some embodiments, there are multiple heating elements 50, which are arranged at intervals along the front-to-back direction. In this embodiment, all the heating elements 50 are located on the side of the partition 20 facing the mounting cavity 30a. Only one partition 20 is needed to shield the microwaves, reducing the impact of microwaves in the cooking cavity 10a on the multiple heating elements 50. Compared to the related art where a microwave shielding shell is fitted around the periphery of a single heating element, the cooking appliance 1 provided in this application does not require microwave shielding shells to be fitted around the periphery of multiple heating elements 50. When there are multiple heating elements 50, this helps to reduce assembly and improve production efficiency.

[0075] For example, the heating element 50 is a graphene heating element.

[0076] For example, the heating component 50 includes a housing 51 and a heating element, the heating element being disposed inside the housing 51.

[0077] The material of the heating element is not limited, as long as it can achieve heating when electricity is applied. For example, it can be a graphene heating element or a metal heating element. The shape of the heating element is not limited; for example, it can be tubular, sheet-like, or spiral-shaped.

[0078] Heating component 50 is a graphene heating component, which means that the heating element is a graphene heating element.

[0079] The housing 51 is used to protect the heating element. For example, the housing 51 can be a quartz glass housing. Quartz glass is heat-resistant, has high hardness, and is corrosion-resistant.

[0080] For example, the extension direction of the shell 51 is along the left-right direction of the cooking appliance 1.

[0081] It should be noted that the specific connection method between the heat insulation cover unit 30 and the partition plate 20 is not limited. For example, it can be welding.

[0082] For example, in some embodiments, please refer to Figure 3 and Figure 4 The cooking appliance 1 includes multiple connectors 60, which connect the heat insulation cover unit 30 and the partition 20. The multiple connectors 60 are arranged at intervals along the periphery of the heat insulation cover unit 30.

[0083] It should be noted that the heat insulation cover unit 30 is mounted on the partition plate 20. The surfaces of the heat insulation cover unit 30 and the partition plate 20 each have annular mating surfaces. The two annular mating surfaces are in contact, and the connector 60 passes through the two annular mating surfaces.

[0084] In some embodiments, please refer to Figure 4 The spacing between two adjacent connectors 60 (e.g.) Figure 4 The distance K is less than the microwave wavelength λ, i.e., K < λ. Taking a microwave frequency of 2.45 GHz as an example, K < 12.2 cm. For example, K can be 12 cm, 10 cm, 8 cm, 6 cm, 4 cm, or 2 cm. It can be understood that even if a small amount of microwaves in the cooking cavity 10a leaks into the mounting cavity 30a, when the microwaves leaking into the mounting cavity 30a propagate outward along the gap between the two annular mating surfaces, the distance between the two adjacent connectors 60 is less than the microwave wavelength λ, making it difficult for the microwaves to leak out from the gap between the two adjacent connectors 60. This helps to improve the microwave shielding performance at the connection between the heat insulation cover unit 30 and the partition plate 20.

[0085] For example, the distance between two adjacent connectors 60 is less than 1 / 4 of the microwave wavelength λ, i.e., K < 1 / 4λ. Taking a microwave frequency of 2.45 GHz as an example, K < 3.05 cm. For example, K can be 3 cm, 2 cm, or 1 cm. In this way, the possibility of microwave leakage from the gap between two adjacent connectors 60 can be further reduced, so as to ensure the safety of using the cooking appliance 1.

[0086] In some embodiments, please refer to Figure 3 and Figure 5The aforementioned multiple connectors 60 include multiple first connectors 61. In the projection of the partition 20 onto the plane, the projection of the first connector 61 is located inside the projection of the cooking cavity 10a. The bottom end of the first connector 61 is fixed to the partition 20, and the top end of the first connector 61 passes through the heat insulation cover unit 30 from bottom to top and connects to the heat insulation cover unit 30. Specifically, the heat insulation cover unit 30 is provided with multiple connection holes. Before assembling the heat insulation cover unit 30 and the partition 20, the first connectors 61 are first fixed to the partition 20. During assembly, the connection holes are aligned with the ends of the first connectors 61, so that the top end of the first connector 61 passes through the connection holes.

[0087] Understandably, the bottom end of the first connector 61 is located on the side of the partition 20 away from the cooking cavity 10a, and the top end of the first connector 61 extends from bottom to top. The end of the first connector 61 does not obviously extend into the cooking cavity 10a, so the user does not easily see the first connector 61, thus improving the aesthetics of the cooking cavity 10a. In addition, when the user takes food out of the cooking cavity 10a, the food, food containers, etc. are less likely to scratch the first connector 61, which can improve the safety of using the cooking utensil 1.

[0088] It should be noted that the specific structure of the first connector 61 is not limited.

[0089] In some embodiments, please refer to Figure 5 The first connector 61 includes a stud, and the cooking appliance 1 includes a nut 70, which is sleeved on the outer periphery of the stud and abuts against the top surface of the heat insulation cover unit 30.

[0090] It is understandable that the stud has threads, and the heat insulation cover unit 30 has a hole that fits the stud. After the stud passes through the hole, it can be threaded with the nut 70 to achieve the connection between the heat insulation cover unit 30 and the partition plate 20. The connection stability of the stud and the nut 70 is high, which can improve the connection strength between the first connector 61 and the heat insulation cover unit 30.

[0091] It should be noted that the specific method by which the first connector 61 is fixed to the partition 20 is not limited. For example, the first connector 61 and the partition 20 can be riveted, welded, or bonded. It should be noted that when bonding, the adhesive used needs to ensure good and sufficient strength; for example, plastic putty can be used as the adhesive.

[0092] In some embodiments, such as Figure 3As shown, the heat insulation cover unit 30 includes an inner cover 31 and an outer cover 32. The outer cover 32 covers the outside of the inner cover 31, and the inner cover 31 and the partition 20 together form an installation cavity 30a. It can be understood that the double-layer design of the outer cover 32 and the inner cover 31 can help improve the heat insulation effect of the heat insulation cover unit 30, improve the heat energy utilization rate, and further help reduce the heat conducted from the heat insulation cover unit 30 to the second shell of the cooking appliance 1, thereby improving the safety of the cooking appliance.

[0093] For example, the cooking appliance 1 includes a heat-insulating material disposed between the inner cover 31 and the outer cover 32. This helps to further reduce the heat transferred from the heating element 50 to the outside of the heat insulation unit 30.

[0094] The material of the insulation material is not limited; for example, it can be glass fiber and ceramic fiber. Glass fiber and ceramic fiber have low thermal conductivity and can effectively block heat conduction.

[0095] It should be noted that the inner cover 32 is made of metal, and / or the outer cover 31 is made of metal. This effectively blocks microwaves from passing through, reducing the risk of microwave leakage.

[0096] The various embodiments / implementations provided in this application can be combined with each other without creating contradictions.

[0097] The above description is merely a preferred embodiment of this application and is not intended to limit the application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A cooking utensil, characterized in that, include: First shell; A partition, which is a bare metal plate, and together with the first shell, forms a cooking cavity; A heat insulation cover unit is disposed on the side of the partition away from the cooking cavity, and the partition and the heat insulation cover unit together form an installation cavity; A microwave device for supplying microwaves to the cooking cavity; A heating element, disposed in the mounting cavity, is used to provide heat to the cooking cavity; The partition has multiple through holes for shielding microwaves, and the multiple through holes connect the cooking cavity and the mounting cavity.

2. The cooking utensil according to claim 1, characterized in that, The partition is made of stainless steel.

3. The cooking utensil according to claim 1, characterized in that, The first shell has an aluminum film layer on its inner surface facing the cooking cavity; and / or, the heat insulation cover unit has an aluminum film layer on its inner surface facing the mounting cavity.

4. The cooking utensil according to claim 1, characterized in that, The first shell includes a bottom plate and multiple side plates. The bottom plate and the partition are arranged at intervals along the height direction of the cooking appliance. The bottom ends of the multiple side plates are connected to the bottom plate, and the top ends are connected to the partition. The bottom plate, the multiple side plates and the partition together enclose the cooking cavity. The heating element is located on the top side of the partition.

5. The cooking utensil according to claim 4, characterized in that, The cooking appliance includes a second shell, the second shell including a top plate portion located above the partition, and the heat insulation cover unit located between the top plate portion and the partition.

6. The cooking utensil according to claim 1, characterized in that, The heating element is a graphene heating element.

7. The cooking utensil according to claim 1, characterized in that, The heating element extends along the left-right direction of the cooking appliance, and both ends of the heating element pass through the heat insulation cover unit along the left-right direction.

8. The cooking utensil according to claim 1, characterized in that, The cooking appliance includes multiple connectors that connect the heat insulation cover unit and the partition. The multiple connectors are arranged at intervals along the periphery of the heat insulation cover unit, and the distance between two adjacent connectors is less than the microwave wavelength.

9. The cooking utensil according to claim 1, characterized in that, The heat insulation cover unit includes an inner cover and an outer cover, the outer cover covering the outside of the inner cover, and the inner cover and the partition together forming the mounting cavity.

10. The cooking utensil according to claim 9, characterized in that, The cooking appliance includes heat insulation material disposed between the inner cover and the outer cover.

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