CN219813873U - Cavity upper plate of cooking device and cooking device - Google Patents

Abstract

The embodiment of the utility model provides a cavity upper plate of a cooking device, wherein the cavity upper plate forms a top wall of a cooking cavity of the cooking device, and the cavity upper plate comprises: a sinking region and a plate body connected to the peripheral side of the sinking region; the plate body is arranged at the top of the cooking cavity; the sinking area is sunken towards the cooking cavity, and the bottom wall of the sinking area is in a curved surface shape with a low center and a high peripheral side. According to the cavity upper plate provided by the embodiment of the utility model, the bottom wall of the sinking area is inclined towards the cooking cavity along the direction of the periphery side center of the sinking area to form the curved surface, and the curved surface structure can compensate the internal stress generated by the cavity upper plate in a high-temperature environment, so that the structural strength of the cavity upper plate is improved. In addition, when the surface of the plate body and the sinking area is required to be coated with the enamel heat insulation layer, the enamel surface treatment is required to be carried out on the upper plate of the cavity body at high temperature, and the curved surface structure of the bottom wall of the sinking area can compensate the high-temperature environment and the enamel internal stress to a certain extent, so that the structural strength of the upper plate of the cavity body is improved to a certain extent.

Description

Cavity upper plate of cooking device and cooking device

Technical Field

The utility model relates to the technical field of kitchen equipment, in particular to a cavity upper plate of a cooking device and the cooking device.

Background

In the related art, the cavity structure of the oven generally adopts metal alloy materials, and when the structural strength of cavity structures such as the cavity upper plate does not meet the requirement, the reliability of the cavity upper plate can be reduced, the cavity upper plate can be possibly deformed, and the deformed cavity upper plate is inconvenient to assemble.

Disclosure of Invention

In view of the foregoing, it is desirable to provide a cavity upper plate of a cooking device and a cooking device capable of improving structural strength.

To achieve the above object, an embodiment of the present utility model provides a cavity upper plate of a cooking apparatus, the cavity upper plate forming a top wall of a cooking cavity of the cooking apparatus, the cavity upper plate comprising: a sinking region and a plate body connected to the peripheral side of the sinking region;

the plate body is arranged at the top of the cooking cavity;

the sinking area is sunken towards the cooking cavity, and the bottom wall of the sinking area is in a curved surface shape with a low center and a high peripheral side.

The bottom wall of the sinking region gradually slopes toward the cooking cavity in a direction from the peripheral side to the center of the sinking region.

In one embodiment, the height difference of the bottom wall of the sinking region is 1mm-8mm.

In one embodiment, the bottom wall of the submerged area is inclined at an angle of 0.5 ° to 8 °.

In one embodiment, the bottom wall of the submerged area is rectangular, circular or oval in projection on a horizontal plane.

In one embodiment, the cavity upper plate comprises an enamel heat insulation layer, and the enamel heat insulation layer is coated on the surfaces of the plate body and the sinking area.

In one embodiment, the plate body and the sinking region are an integral sheet metal part.

In one embodiment, the side of the cavity upper plate facing away from the cooking cavity forms part of a hot air duct of the cooking device.

In one embodiment, an air outlet is formed at the joint of the plate body and the sinking area, and air flow in the hot air duct can flow to the cooking cavity through the air outlet.

In one embodiment, the sinking region is provided with a fan mounting opening penetrating the sinking region, and the edge of the fan mounting opening is provided with a flanging which extends towards one side facing away from the cooking cavity.

The embodiment of the utility model also provides a cooking device which comprises a cooking cavity and the cavity upper plate, wherein the cavity upper plate forms the top wall of the cooking cavity.

In one embodiment, the cooking device is one of an oven, an air fryer, a steam box, and a steam oven.

According to the cavity upper plate and the cooking device of the cooking device, the cavity upper plate forms the top wall of the cooking cavity of the cooking device, the cavity upper plate comprises the sinking area and the plate body connected to the periphery of the sinking area, the plate body is arranged at the top of the cooking cavity and is connected with the side wall of the cooking cavity to form the cooking cavity in a surrounding mode, the sinking area is recessed towards the cooking cavity, so that the structural strength of the cavity upper plate can be improved to a certain extent, meanwhile, the bottom wall of the sinking area is in a curved surface shape with a low center and a high periphery, namely, the bottom wall of the sinking area is inclined towards the cooking cavity to form a curved surface along the direction of the periphery of the sinking area, deformation of the cavity upper plate in a high-temperature environment can be prevented to a certain extent, namely, the bottom wall of the sinking area is arranged to be a curved surface, the curved surface structure can compensate internal stress generated by the cavity upper plate in the high-temperature environment, and the structural strength of the cavity upper plate is improved.

In addition, when the surface of the plate body and the sinking area is required to be coated with the enamel heat insulation layer, the enamel surface treatment is required to be carried out on the upper plate of the cavity body at high temperature, and the curved surface structure of the bottom wall of the sinking area can compensate the high-temperature environment and the enamel internal stress to a certain extent, so that the structural strength of the upper plate of the cavity body is improved to a certain extent.

Drawings

Fig. 1 is a schematic structural view of a cooking apparatus according to an embodiment of the present utility model;

fig. 2 is a schematic view of the cooking apparatus of fig. 1 with a door omitted;

FIG. 3 is a cross-sectional view in the direction F-F of FIG. 2;

FIG. 4 is an enlarged view at B in FIG. 3;

FIG. 5 is a schematic view of the structure of the upper plate of the chamber according to the embodiment of the utility model;

FIG. 6 is a cross-sectional view of FIG. 5;

fig. 7 is an enlarged view at C in fig. 6.

Description of the reference numerals

1. A cooking device; 1a, a heat dissipation air duct; 1b, a hot air duct; 10. a case; 10a, a cooking cavity; 10b, opening; 11. a cavity upper plate; 11a and an air outlet; 11b, a fan mounting port; 11c, flanging; 111. a sinking region; 111a, a bottom wall; 112. a plate body; 12. a housing assembly; 20. a door body; 30. an upper heat-dissipating cover; 40. a lower heat dissipation cover; 50. a heat radiation fan; 60. a motor; 70. a hot air cover; 80. a hot air fan; 90. and (5) heating the pipe.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments of the present utility model and the technical features of the embodiments may be combined with each other, and the detailed description in the specific embodiments should be interpreted as an explanation of the gist of the present utility model and should not be construed as unduly limiting the present utility model.

In the description of the present utility model, the terms "top," bottom, "" upper, "" lower, "" front, "" rear, "and" positional relationships are based on the orientations or positional relationships shown in fig. 1 and 2, where the "height direction" is based on the top-bottom direction shown in fig. 2 and the "back" is based on the rear side shown in fig. 1, it should be understood that these positional terms are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. The utility model will be described in further detail with reference to the accompanying drawings and specific examples. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

An embodiment of the present utility model provides a cooking apparatus, please refer to fig. 1 to 7, which includes a cooking cavity 10a and a cavity upper plate 11 provided in any embodiment of the present utility model, wherein the cavity upper plate 11 forms a top wall of the cooking cavity 10a.

It should be noted that the specific type of the cooking apparatus 1 is not limited herein, and in an exemplary embodiment, the cooking apparatus 1 is one of an oven, an air fryer, a steam box, and a steam oven. The embodiment of the present utility model will be described taking the cooking apparatus 1 as an oven.

In other embodiments, the microwave heating function can be integrated on the cooking device 1 with different functions according to the user's requirement, so as to separate the microwave from the oven, the steam box or the steam oven, and improve the kitchen use convenience. For example, a microwave oven all-in-one machine.

Referring to fig. 1 to 3, an exemplary cooking apparatus 1 includes a cabinet 10, the cabinet 10 including a housing assembly 12 and a cavity module having a cooking cavity 10a, the housing assembly 12 being covered on an outer side of at least a part of a structure of the cavity module. That is, the housing assembly 12 may be disposed outside the entire cavity module, or may be disposed outside a part of the structure of the cavity module.

The cooking cavity 10a is used to receive food and cook the food, and the food may be put into the cooking cavity 10a through the opening 10b or taken out of the cooking cavity 10a. The opening 10b is provided, for example, on the front side of the case 10.

Referring to fig. 1 and 2, for example, the cooking apparatus 1 includes a door body 20 provided at an opening 10b to seal a cooking cavity 10a, i.e., the door body 20 may selectively open or close the opening 10b.

Referring to fig. 3 and 4, the cooking device 1 includes a heat dissipation air duct 1a, where the heat dissipation air duct 1a is disposed at the top of the case 10 and is used for dissipating heat between the housing assembly 12 and the top of the cavity module, i.e. dissipating heat transferred to the top of the case 10 in the cooking cavity 10a, so as to dissipate heat and cool the case 10 and components such as a motherboard at the top of the case 10. Namely, the hot air in the cooking device 1 between the cavity module and the shell assembly 12 circulates with the outside air, so that the cooking device 1 is cooled.

As an example, referring to fig. 3 and 4, the cooking device 1 includes a hot air duct 1b, the hot air duct 1b is disposed between the cooking cavity 10a and the heat dissipation duct 1a located at the top of the case 10, and the air flow in the hot air duct 1b flows to the cooking cavity 10a under the action of the fan assembly of the cooking device 1, so that the air flow carrying heat can be blown to the food vertically, thereby improving the cooking efficiency and the cooking effect.

For example, referring to fig. 3 and 4, the side of the cavity upper plate 11 facing away from the cooking cavity 10a forms a part of the hot air duct 1b of the cooking device 1. That is, one side of the cavity upper plate 11 constitutes a top wall of the cooking cavity 10a, while one side of the cavity upper plate 11 facing away from the cooking cavity 10a constitutes a part of the hot air duct 1b, i.e., the cavity upper plate 11 constitutes both a part of the cooking cavity 10a and a part of the hot air duct 1b. Parts are reduced, the cost is reduced, and the air in the hot air duct 1b is convenient to flow to the cooking cavity 10a.

The embodiment of the present utility model provides a chamber upper plate 11, please refer to fig. 5, which includes a sinking area 111 and a plate 112 connected to the peripheral side of the sinking area 111.

Illustratively, the plate 112 and the submerged region 111 are of unitary construction, such as a unitary sheet metal part. That is, a structure obtained by molding the same metal plate through a cold working process. For example, the structure is finally obtained after blanking, stamping, bending and other processes. In this way, the structural strength and rigidity of the cavity upper plate 11 can be improved.

In addition, the integrated plate 112 and the sinking region 111 can reduce the number of parts, reduce the assembly time, and improve the assembly efficiency.

Of course, the plate 112 and the sinking region 111 may be formed as separate structures, for example, by welding or fastening.

Referring to fig. 5 to 7, the sinking region 111 is recessed toward the cooking cavity 10a, and the bottom wall 111a of the sinking region 111 has a curved surface shape with a low center and a high peripheral side. I.e., in the direction of the circumferential center of the sinking region 111, the bottom wall 111a of the sinking region 111 is inclined toward the cooking cavity 10a to form a curved surface.

In some embodiments, the same metal plate is cut into a required shape by a blanking process; punching is performed on the cut plate material to punch out a sinking region 111; and then punching the bottom wall 111a of the sinking area 111 into a curved surface shape with a low center and a high periphery, wherein the part of the plate which is not punched and bent is a non-concave area, namely the non-concave area is equivalent to a reference standard of the plate for processes such as punching, bending and the like.

According to the cavity upper plate 11 of the cooking device 1 and the cooking device 1 provided by the embodiment of the utility model, the cavity upper plate 11 forms the top wall of the cooking cavity 10a of the cooking device 1, the cavity upper plate 11 comprises the sinking region 111 and the plate body 112 connected to the periphery of the sinking region 111, the plate body 112 is arranged at the top of the cooking cavity 10a, is connected with the side wall of the cooking cavity 10a and is jointly surrounded to form the cooking cavity 10a, the sinking region 111 is recessed towards the cooking cavity 10a, so that the structural strength of the cavity upper plate 11 can be improved to a certain extent, meanwhile, the bottom wall 111a of the sinking region 111 is in a curved surface shape with a low center and a high periphery, namely, the bottom wall 111a of the sinking region 111 is inclined towards the cooking cavity 10a along the direction of the periphery of the sinking region 111 to form a curved surface, deformation of the cavity upper plate 11 in a high-temperature environment can be prevented to a certain extent, namely, the bottom wall 111a of the sinking region 111 is arranged to be a curved surface, the curved surface structure can compensate internal stress generated by the cavity upper plate 11 in the high-temperature environment, and the structural strength of the cavity upper plate 11 can be improved.

In addition, when the surface of the plate body 112 and the sinking area 111 needs to be coated with the enamel heat-insulating layer, the cavity upper plate 11 needs to be subjected to enamel surface treatment at high temperature, and the curved surface structure of the bottom wall 111a of the sinking area 111 can compensate the high-temperature environment and enamel internal stress to a certain extent, so that the structural strength of the cavity upper plate 11 is improved to a certain extent.

The bottom wall 111a of the sinking region 111 has a plurality of curved structural forms with a low center and a high peripheral side. Illustratively, in some embodiments, referring to fig. 7, the bottom wall 111a of the sink region 111 gradually slopes toward the cooking cavity 10a in a direction along the circumferential center of the sink region 111. That is, the bottom wall 111a of the sinking region 111 in this embodiment is uniformly changed, i.e., gradually inclined toward the cooking cavity 10a, for example, the tangential line of the curved surface at different points coincides with the horizontal included angle.

In other embodiments, the bottom wall 111a of the submerged region 111 is not uniformly varied, i.e., is not gradually inclined toward the cooking chamber 10a, along the direction of the circumferential center of the submerged region 111, e.g., the tangent line at the different point of the curved surface is not coincident with the horizontal angle.

Illustratively, the upper cavity plate 11 includes an enamel insulating layer that covers the surfaces of the plate body 112 and the submerged region 111. The enamel insulating layer is, for example, an inorganic vitreous material, which can be fused to the surfaces of the plate body 112 and the sinking region 111 and firmly bonded to the plate body 112 and the sinking region 111 to form a composite upper cavity plate 11.

By arranging the enamel heat insulation layer, the rust prevention, high temperature resistance, easy cleaning, low cost and the like of the cavity upper plate 11 can be improved. In addition, the conduction heat coefficient of the enamel heat insulation layer (such as inorganic glass) is lower than that of metal, so that a better heat insulation effect is achieved, the surface of the enamel heat insulation layer is smooth and scratch-resistant, and the user experience can be improved.

It will be appreciated that the enamelling process is a composite of inorganic vitreous material fused to a base metal and forming a strong bond with the metal, and how to stabilize the structure of the upper chamber plate 11 during the high temperature fusing process is a critical structural design.

According to the embodiment of the utility model, the bottom wall 111a of the sinking area 111 is arranged to be in the shape of the curved surface with low center and high peripheral side, namely, the bottom wall 111a of the sinking area 111 is inclined towards the cooking cavity 10a along the direction of the peripheral side of the sinking area 111 to form the curved surface, and the curved surface structure can compensate the internal stress of the upper cavity plate 11 generated in a high-temperature (for example, 800 ℃) environment, so that the upper cavity plate 11 can be prevented from deforming in the enamel high-temperature process to a certain extent, and the upper cavity plate 11 is more stable in assembly.

In addition, the deformation of the upper cavity plate 11 in the enamel process is prevented, and the qualification rate of the upper cavity plate 11 and the qualification rate of the whole machine assembly are improved.

For example, referring to fig. 7, the height difference H of the bottom wall 111a of the sinking region 111 is 1mm to 8mm. For example 1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 7.5mm or 8mm.

The height difference of the bottom wall 111a of the depressed area 111 refers to the distance between the highest point and the lowest point of the bottom wall 111a of the depressed area 111, i.e., the height difference between the height of the peripheral side of the bottom wall 111a of the depressed area 111 and the height of the center.

The difference in height of the bottom wall 111a of the sinking region 111 is less than 1mm, and the curved surface structure can provide less compensation force, deformation resistance or enamel internal stress.

The difference in height of the bottom wall 111a of the sinking region 111 is greater than 8mm, which is unfavorable for the press forming of the sheet metal process, and in addition, is unfavorable for the flow of the air flow in the hot air duct 1b.

When the height difference of the bottom wall 111a of the sinking area 111 is 1mm-8mm, the stamping forming of the sheet metal process is facilitated, the processing and manufacturing can be facilitated, the flow of air flow in the hot air duct 1b cannot be influenced, the occupied space cannot be excessively large due to too much protrusion, in addition, enough compensation force, deformation resistance or enamel internal stress resistance can be provided, the structural strength and rigidity of the upper cavity plate 11 are further improved, and the deformation of the upper cavity plate 11 in the processing or using process is prevented.

Illustratively, the bottom wall 111a of the submerged region 111 is inclined at an angle of 0.5 ° -8 °. For example 0.5 °, 1 °, 2 °, 3 °, 4 °, 5 °, 6 °, 7 °, 7.5 °, or 8 °.

The inclination angle of the bottom wall 111a of the sinking region 111 described herein refers to an angle between a line between a highest point and a lowest point of the bottom wall 111a of the sinking region 111 and a horizontal plane.

The inclination angle of the bottom wall 111a of the sinking region 111 is smaller than 0.5 °, and the inclination angle of the curved surface structure is smaller, so that the compensation force, the deformation resistance, or the enamel internal stress can be provided smaller.

The inclination angle of the bottom wall 111a of the sinking area 111 is larger than 8 °, and the inclination angle of the curved surface structure is larger, which is not beneficial to the stamping forming of the sheet metal process, and is also not beneficial to the flow of the air flow in the hot air duct 1b.

And when the inclination angle of the bottom wall 111a of the sinking area 111 ranges from 0.5 degrees to 8 degrees, the stamping forming of the sheet metal process is facilitated, the processing and manufacturing can be facilitated, the flow of air flow in the hot air duct 1b cannot be influenced, the occupied space cannot be excessively large due to too much protrusion, in addition, enough compensation force, deformation resistance or enamel internal stress resistance can be provided, the structural strength and rigidity of the upper cavity plate 11 are further improved, and the upper cavity plate 11 is prevented from deforming in the processing or using process.

It should be noted that the shape of the sinking region 111 is not limited herein, and exemplary shapes of projections of the bottom wall 111a of the sinking region 111 on a horizontal plane include, but are not limited to, rectangular, circular, elliptical, racetrack-shaped, or polygonal.

Wherein, the runway shape refers to: the shape similar to a track and field runway is formed by alternately connecting two semicircles and two parallel straight edges.

Referring to fig. 3 and 4, the cooking apparatus 1 includes an upper heating pipe 90, and the upper heating pipe 90 is located in the cooking cavity 10a and can be fastened to the cavity upper plate 11 by screws. The upper heating pipe 90 is arranged in the cooking cavity 10a, heat generated by heating of the upper heating pipe 90 can be directly transferred to food in the cooking cavity 10a, cooking efficiency and cooking effect can be improved, and meanwhile, the cavity upper plate 11 is arranged above the upper heating pipe 90, so that the problem that heat in the cooking cavity 10a is transferred to the top of the box 10 can be solved to a certain extent.

As an example, referring to fig. 4 and 5, an air outlet 11a is disposed at the connection between the plate 112 and the sinking area 111, the air flow in the hot air duct 1b can flow to the cooking cavity 10a through the air outlet 11a, that is, the cooking cavity 10a is communicated with the hot air duct 1b through the air outlet 11a, under the action of the fan assembly, the air flow in the hot air duct 1b flows to the upper heating pipe 90 through the air outlet 11a of the cavity upper plate 11, the air flow carries the heat of the upper heating pipe 90 to blow to the food in the cooking cavity 10a, on one hand, the air flow directly flows to the upper heating pipe 90 to better carry the heat of the upper heating pipe 90 to blow to the food, thereby improving the heat utilization rate and the cooking effect, and on the other hand, the air flow carrying the heat can be vertically blown to the food, thereby further improving the cooking efficiency and the cooking effect.

For example, referring to fig. 4, the cooking apparatus 1 includes a hot air cover 70, and the hot air cover 70 is disposed above the cavity upper plate 11 and surrounds and forms a hot air duct 1b. That is, the space between the hot air hood 70 and the cavity upper plate 11 forms the hot air duct 1b.

For example, referring to fig. 4 and 5, the sinking area 111 is provided with a fan mounting opening 11b penetrating through the sinking area 111, and the hot air fan 80 of the cooking device 1 can extend into the hot air duct 1b through the fan mounting opening 11b and be connected with a rotating shaft of the motor 60, and the motor 60 can drive the hot air fan 80 to rotate; when the hot air fan 80 needs to be maintained, the upper cavity plate 11 and the upper heating pipe 90 do not need to be disassembled, an operator only needs to stretch into the hot air duct 1b through the fan mounting opening 11b, the connection relationship between the hot air fan 80 and the rotating shaft is relieved, the hot air fan 80 can be taken out from the hot air duct 1b to maintain or replace the hot air fan 80, the disassembly and assembly efficiency of the hot air fan 80 is improved, the disassembly and assembly efficiency of the cooking device 1 is further improved, and the labor cost is reduced.

In addition, the fan mounting opening 11b can also accelerate the flow between the hot air duct 1b and the air in the cooking, so that the air quantity of the hot air duct 1b flowing to the cooking cavity 10a can be improved, and the uniformity of a thermal field in the cooking cavity 10a can be further improved.

Illustratively, the cavity upper plate 11 and the hot air cover 70 may be pre-assembled, further improving the assembly efficiency of the cooking device 1.

The cavity upper plate 11 is fastened and connected with the hot air cover 70 by screws, for example, so that the assembly and disassembly are convenient.

For example, referring to fig. 4 and 7, the edge of the fan mounting opening 11b has a flange 11c, the flange 11c extending toward a side facing away from the cooking cavity 10a. The flange 11c can further improve the strength and rigidity of the upper cavity plate 11, thereby preventing the upper cavity plate 11 from being deformed. In addition, the flange 11c extends toward one side facing away from the cooking cavity 10a, so that the edge of the fan mounting opening 11b can be prevented from scratching an operator when the hot air fan 80 is dismounted, and the safety of the operator is improved.

Illustratively, the cavity module may include a cavity front plate, a cavity upper plate 11, a cavity lower plate, a cavity right plate, a cavity left plate, and a cavity rear plate, which collectively enclose a cooking cavity 10a.

Illustratively, the case 10 includes a heat insulating layer, and the housing assembly 12 covers the outside of the cavity module and defines a receiving space with the cavity module, and the heat insulating layer is disposed in the receiving space for insulating the cooking cavity 10a. That is, the housing assembly 12 is disposed outside of the cavity module, and the housing assembly 12 may include an upper housing, a lower housing, a right housing, a left housing, and a rear housing.

The cooking device 1 comprises a door lock switch, the door lock switch is connected with a wire harness, the motor 60 can be controlled to stop running, namely, the motor 60 can be controlled to stand up Ma Tingzhuai through the door lock switch, and the dismounting or maintenance efficiency is improved.

The door lock switch can be clamped with the front plate of the cavity, and the door body 20 can be opened or closed to control the door lock switch, so that the motor 60 is controlled to stop suddenly.

Since there is a door lock switch, if the heat radiation fan 50 or the hot air fan 80 needs to be replaced, the door body 20 opens to trigger the door lock switch, so that the heat radiation fan 50 and the hot air fan 80 are stopped by a program harness or the like, and no moving parts are touched, so that safety problems of safety regulations are avoided. The effects of easy disassembly and assembly and easy maintenance are also realized.

For example, referring to fig. 3 and 4, the cooking device 1 includes an upper heat dissipation cover 30 and a lower heat dissipation cover 40, and the lower heat dissipation cover 40 is disposed at the bottom side of the upper heat dissipation cover 30 and surrounds the heat dissipation air channel 1a. That is, the space between the upper and lower heat dissipation covers 30 and 40 forms the heat dissipation air channel 1a.

In the description of the present utility model, a description of the terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present utility model. In the present utility model, the schematic representations of the above terms are not necessarily for the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the various embodiments or examples described in the present utility model and the features of the various embodiments or examples may be combined by those skilled in the art without contradiction.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model are included in the protection scope of the present utility model.

Claims (12)

1. A cavity upper plate of a cooking device, wherein the cavity upper plate forms a top wall of a cooking cavity of the cooking device, the cavity upper plate comprising: a sinking region and a plate body connected to the peripheral side of the sinking region;

the plate body is arranged at the top of the cooking cavity;

the sinking area is sunken towards the cooking cavity, and the bottom wall of the sinking area is in a curved surface shape with a low center and a high peripheral side.

2. The cavity upper plate according to claim 1, wherein a bottom wall of the sinking region gradually slopes toward the cooking cavity in a direction of a circumferential center of the sinking region.

3. The upper chamber plate of claim 1, wherein the height difference of the bottom wall of the submerged area is 1mm-8mm.

4. The upper chamber plate of claim 1, wherein the bottom wall of the countersink region is inclined at an angle of 0.5 ° -8 °.

5. The upper chamber plate of claim 1, wherein the bottom wall of the submerged area is rectangular, circular or oval in projection on a horizontal plane.

6. The upper cavity plate according to any one of claims 1-5, wherein the upper cavity plate comprises an enamel thermal insulation layer, which is coated on the surfaces of the plate body and the sinking area.

7. The cavity upper plate of claim 6, wherein the plate body and the sinking region are a one-piece sheet metal part.

8. The cavity top plate according to any one of claims 1-5, wherein a side of the cavity top plate facing away from the cooking cavity forms part of a hot air duct of the cooking device.

9. The cavity upper plate according to claim 8, wherein an air outlet is formed at a joint of the plate body and the sinking area, and air flow in the hot air duct can flow to the cooking cavity through the air outlet.

10. The cavity upper plate according to claim 8, wherein the sink region is provided with a fan mounting opening extending through the sink region, the edge of the fan mounting opening having a flange extending towards a side facing away from the cooking cavity.

11. A cooking device comprising a cooking chamber and a chamber upper plate according to any one of claims 1-10, said chamber upper plate constituting a top wall of said cooking chamber.

12. The cooking device of claim 11, wherein the cooking device is one of an oven, an air fryer, a steam box, and a steam oven.