Cooking apparatus

Abstract

This application provides a cooking device, relating to the field of kitchen appliance technology, to solve the technical problem of microwave leakage caused by vent holes on the side wall of the inner pot. The cooking device includes an inner pot, an isolation plate, and a fan assembly. The inner pot has a receiving cavity inside, and its rear wall has an openable and closable air inlet and exhaust vent. The isolation plate is disposed within the receiving cavity and is sealed to the inner wall of the inner pot, thus isolating the receiving cavity into an independent cooking cavity and a convection cavity. Both the air inlet and exhaust vent are located in the convection cavity. The isolation plate has multiple microwave shielding holes to allow gas in the cooking cavity and convection cavity to convect through the microwave shielding holes. The fan assembly includes a fan located on the outside of the inner pot, with the fan's outlet connected to the air inlet, allowing the fan to blow air into the convection cavity, so that steam in the cooking cavity can be discharged through the convection cavity and then through the exhaust vent. This application can simultaneously achieve efficient steam exhaust and prevent microwave leakage.

Description

Technical Field

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

[0002] As one of the commonly used appliances in modern family kitchens, microwave-steam-oven combination appliances typically rely on a steam generator to produce 100°C steam, which heats food through heat conduction. During the steaming process, excessive steam needs to be released to maintain the cavity temperature, which can lead to the food surface becoming too wet (such as the surface of steamed buns soaking with water). Furthermore, a large amount of steam overflows the moment the door is opened after cooking, affecting the user experience.

[0003] To address the issue of rapid steam release, related technologies typically involve creating large-diameter vent holes in the inner cavity of a microwave-steam-grill combination appliance. By blowing air into or drawing air into the cooking chamber inside the inner cavity, the steam inside the cooking chamber is rapidly expelled through the vent holes. This prevents the food surface from becoming too wet, which would affect the cooking effect, and also avoids a large amount of steam overflowing out when the door is opened after cooking, which would negatively impact the user experience.

[0004] However, in related technologies, when the microwave function is activated, the vent can easily lead to microwave leakage, posing a safety hazard. Therefore, how to ensure efficient steam discharge while also considering the safety of microwave use has become a key issue in the design of microwave-steam-grill combination appliances. Utility Model Content

[0005] In view of the above problems, this application provides a cooking device that can ensure efficient steam emission while avoiding microwave leakage, thereby improving the safety and reliability of the cooking device during operation.

[0006] To achieve the above objectives, the embodiments of this application provide the following technical solutions:

[0007] This application provides a cooking device, including:

[0008] The inner liner has an internal cavity, and the rear wall of the inner liner has an openable and closable air inlet and air outlet.

[0009] An isolation plate is disposed within the accommodating cavity and is sealed to the inner wall of the inner liner to isolate the accommodating cavity into an independent cooking cavity and a convection cavity along the front-back direction of the inner liner. A microwave generator is provided in the cooking cavity, and the air inlet and the air outlet are both located in the convection cavity. The isolation plate has multiple microwave shielding holes, each of which is through in the front-back direction, so that the gas in the cooking cavity and the convection cavity can be convectioned through the microwave shielding holes.

[0010] The air guiding assembly includes an air guiding fan, which is disposed on the outside of the inner liner. The air outlet of the air guiding fan is connected to the air inlet, so that the air guiding fan blows air into the convection chamber, thereby causing the steam in the cooking chamber to be discharged through the convection chamber and the exhaust port.

[0011] In this embodiment, an isolation plate is provided in the accommodating cavity of the inner liner. The isolation plate, along the front-back direction of the inner liner, isolates the accommodating cavity into an independent cooking cavity and a convection cavity. The convection cavity is located on the rear side of the cooking cavity. The isolation plate is provided with multiple microwave shielding holes to achieve gas convection between the convection cavity and the cooking cavity. The exhaust port for efficient exhaust and the air inlet connected to the air guide assembly are both located in the convection cavity. In this way, when food is heated by microwaves in the cooking cavity, the isolation plate and the microwave shielding holes can shield the microwaves, thereby preventing microwave leakage. When steam needs to be discharged, the air guide fan blows air into the convection cavity, so that the steam in the cooking cavity enters the convection cavity through the microwave shielding holes and is then discharged through the exhaust port. This not only prevents microwave leakage but also achieves efficient exhaust, thereby improving the safety and reliability of the cooking equipment during operation.

[0012] In some alternative embodiments, the circumferential edge of the partition plate is welded or riveted to the inner surface of the inner liner.

[0013] This further improves the sealing at the connection between the isolation plate and the inner liner, preventing microwave leakage.

[0014] In some alternative embodiments, the plurality of microwave shielding holes include a plurality of first microwave shielding holes, the plurality of first microwave shielding holes together forming a first hole group, the first hole group being located near the center of the isolation plate.

[0015] This improves the gas convection efficiency between the cooking chamber and the convection chamber.

[0016] In some alternative embodiments, the plurality of microwave shielding holes include a plurality of second microwave shielding holes, the plurality of second microwave shielding holes together forming a second hole group, the second hole group extending circumferentially along the edge of the isolation plate to surround the outside of the first hole group.

[0017] This can further improve the convection efficiency of gas between the cooking chamber and the convection chamber.

[0018] In some alternative embodiments, the first hole group has a circular outline.

[0019] This ensures that the airflow in the convection chamber and cooking chamber flows evenly from the center outwards, avoiding the problem of uneven local airflow convection.

[0020] In some alternative embodiments, the outer contour of the second hole group is rectangular.

[0021] In this way, the edge airflow can convect along each of the second microwave shielding holes, reducing the dead angle of airflow convection and increasing the coverage of airflow convection.

[0022] In some alternative embodiments, the microwave shielding hole has a circular outline and a diameter of less than or equal to 5 mm.

[0023] In this way, while ensuring gas convection between the cooking cavity and the convection cavity through the microwave shielding hole, microwave leakage from the microwave shielding hole can be prevented.

[0024] In some alternative embodiments, the air inlet includes a plurality of first circular holes, the diameter of which is less than or equal to 5 mm.

[0025] In this way, the air inlet can provide secondary shielding for microwaves, preventing microwave leakage from the air inlet and further enhancing the safety hazard of microwave leakage.

[0026] In some alternative embodiments, the vent hole includes a plurality of second circular holes, the diameter of which is less than or equal to 5 mm.

[0027] In this way, the vent can provide secondary shielding for microwaves, preventing microwave leakage from the vent and further enhancing the safety hazard of microwave leakage.

[0028] In some optional embodiments, the air guide assembly further includes an air guide duct located outside the inner liner and communicating with the air inlet, with one end of the air guide duct being sealed to the rear wall of the inner liner, and the end of the air guide duct facing away from the air inlet communicating with the air outlet of the air guide fan.

[0029] This improves the reliability of the connection between the air duct and the air inlet, preventing gas leakage.

[0030] In some alternative embodiments, the air guide assembly further includes a connecting hose and an exhaust valve, wherein the air outlet of the air guide fan is sealed to the air inlet of the exhaust valve, the air outlet of the exhaust valve is sealed to the connecting hose, and the connecting hose is sealed to the air guide pipe.

[0031] This can further improve the reliability of the connection between the exhaust valve and the connecting pipe, and prevent gas leakage.

[0032] In some alternative embodiments, the cooking device further includes a heating element and a convection fan, both of which are disposed within the convection cavity.

[0033] In this way, the convection fan can ensure that the heat generated by the heating element is evenly distributed in the cooking cavity, thereby improving the cooking effect.

[0034] In addition to the technical problems solved by the embodiments of this application, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions described above, other technical problems that can be solved by the cooking equipment provided by the embodiments of this application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further explained in detail in the specific implementation. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 A schematic diagram of the structure of a cooking device provided in an embodiment of this application;

[0037] Figure 2 This is a cross-sectional view of the cooking apparatus provided in an embodiment of this application.

[0038] Figure 3 This is a cross-sectional view of the cooking apparatus provided in an embodiment of this application.

[0039] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle.

[0040] Explanation of reference numerals in the attached figures:

[0041] 10-Cooking equipment;

[0042] 100 - Inner liner; 110 - Receptacle cavity; 111 - Cooking cavity; 112 - Convection cavity; 113 - Air inlet; 1131 - First round hole;

[0043] 200 - Isolation plate; 210 - Microwave shielding hole; 211 - First microwave shielding hole; 212 - Second microwave shielding hole;

[0044] 300 - Air guide assembly; 310 - Air guide fan; 320 - Air guide duct; 330 - Connecting hose; 340 - Exhaust valve;

[0045] 400 - Heating element;

[0046] 500-Convection fan. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0048] This application provides a cooking device, which includes, but is not limited to, a microwave-steam combination appliance, a microwave-steam-grill combination appliance, etc. Taking a microwave-steam-grill combination appliance as an example, it is a cooking device that integrates microwave function, steam function and grilling function into one unit to provide a multi-functional cooking experience and can complete multiple cooking tasks in one cooking device.

[0049] The cooking equipment includes an inner pot with a cavity inside. This cavity is used to hold and cook food. The steaming function uses an external or internal steam generator to produce steam at, for example, 100°C, as a medium to heat and cook the food. The microwave function uses a microwave generator to heat the food. The baking function uses a heating element inside the cavity to generate high temperatures to bake the food. Typically, excessive steam is released during steaming to maintain the cavity temperature, but this can cause the food surface to become too wet (e.g., the surface of a steamed bun soaks in water), and a large amount of steam overflows when the door is opened after cooking, affecting the user experience.

[0050] In some embodiments, a blower, for example, directs air into the cooking cavity inside the inner pot to accelerate the expulsion of steam from the cooking cavity through the vents. This prevents the food surface from becoming too wet, which could affect the cooking effect, and also avoids a large amount of steam overflowing when the door is opened after cooking, which could negatively impact the user experience. However, when the microwave function is activated, the vents can easily lead to microwave leakage, posing a safety hazard. Therefore, how to ensure efficient steam extraction while also considering the safety of microwave use has become a key issue in the design of a microwave-steam-grill combo.

[0051] In order to overcome the deficiencies in the prior art, this application provides a cooking device that ensures efficient steam exhaust while taking into account the safety of microwave use, thereby improving the safety and reliability of the cooking device during operation and enhancing the cooking effect.

[0052] The contents of this application will now be described in detail with reference to the accompanying drawings, so that those skilled in the art can have a clearer and more detailed understanding of the contents of this application.

[0053] Please refer to Figures 1 to 3 As shown, the cooking device 10 provided in this embodiment includes an inner pot 100, a partition plate 200, and an air guide assembly 300. The inner pot 100 has a receiving cavity 110 inside, and the front side of the inner pot 100 has an opening communicating with the receiving cavity 110. An openable and closable door is installed at the opening, so that food to be cooked can be placed into the receiving cavity 110 or food can be removed by opening the door. The rear wall of the inner pot 100 has an openable and closable air inlet 113 and an air outlet. The partition plate 200 is disposed in the receiving cavity 110 and is sealed to the inner wall of the inner pot 100 to isolate the receiving cavity 110 into an independent cooking cavity 111 and a convection cavity 112 (e.g., along the front-back direction of the inner pot 100) Figure 3 As shown), the air inlet 113 and the exhaust vent are both located in the convection cavity 112. Multiple microwave shielding holes 210 are provided on the isolation plate 200, each microwave shielding hole 210 penetrating the isolation plate 200 along the front-to-back direction of the cooking device 10, so that the gas in the cooking cavity 111 and the convection cavity 112 can be convectioned through the microwave shielding holes 210; the air guide assembly 300 includes an air guide fan 310 (e.g., ...). Figure 1 and Figure 2 As shown), the air guide fan 310 is located on the outside of the inner liner 100. The air outlet of the air guide fan 310 is connected to the air inlet 113 so that the air guide fan 310 blows air into the convection chamber 112 so that the steam in the cooking chamber 111 is discharged through the convection chamber 112 and the exhaust port.

[0054] Understandably, the air guide fan 310 blows into the convection chamber 112, which can compress the steam in the cooking chamber 111, allowing it to enter the convection chamber 112 and be discharged through the exhaust port.

[0055] The outline shape of the microwave shielding hole 210 includes, but is not limited to, a circle. When the outline shape of the microwave shielding hole 210 is a circle, its hole diameter is less than or equal to 5mm. In this way, microwave leakage can be avoided while ensuring steam exhaust.

[0056] In this embodiment, an isolation plate 200 is provided in the accommodating cavity 110 of the inner liner 100. The isolation plate 200, along the front-back direction of the inner liner 100, isolates the accommodating cavity 110 into an independent and sealed cooking cavity 111 and a convection cavity 112. The convection cavity 112 is located behind the cooking cavity 111. Multiple microwave shielding holes 210 are provided on the isolation plate 200 to facilitate gas convection between the convection cavity 112 and the cooking cavity 111. An exhaust port for efficient exhaust and an air inlet 113 connected to the air guide assembly 300 are both located within the convection cavity 112. Thus, the cooking cavity 111... When food is heated by microwaves, the isolation plate 200 and the microwave shielding hole 210 can shield the microwaves, thereby preventing microwave leakage. When steam needs to be discharged, the guide fan 310 blows air into the convection cavity 112, so that the steam in the cooking cavity 111 enters the convection cavity 112 through the microwave shielding hole 210 and is then discharged through the exhaust hole. This not only prevents microwave leakage but also achieves efficient exhaust, thereby improving the safety and reliability of the cooking equipment 10 during operation. It also prevents a large amount of steam from rushing towards the user when the door is opened, which could cause burns or discomfort, thus improving the user experience.

[0057] Of course, the air inlet 113 may not be provided on the rear wall of the inner liner 100. Instead, an exhaust port may be provided on the rear wall of the inner liner 100. The air guide fan 310 is used for exhaust. The air guide fan 310 is connected to the exhaust port. In this way, the air guide fan 310 exhausts the steam in the cooking cavity 111 through the exhaust port to achieve the purpose of high-speed steam exhaust.

[0058] In this embodiment of the application, the use of a guide fan to blow air into the convection cavity 112 is taken as an example for illustration.

[0059] In addition, the isolation plate 200 includes, but is not limited to, a metal plate. The circumferential edge of the metal plate is connected to the inner surface of the inner pot 100 by welding, riveting, or other means to isolate the interior of the inner pot 100 in the front-to-back direction, forming an independent cooking cavity 111 and a convection cavity 112. There is no gap between the edge of the metal plate and the wall of the inner pot 100, which can improve the sealing of the connection between the isolation plate 200 and the inner pot 100, so that microwaves in the cooking cavity 111 will not leak from the edge of the isolation plate 200 to the convection cavity 112. This can prevent microwaves from leaking into the convection cavity 112 and affecting the normal operation of the components of the cooking device 10 located in the convection cavity 112 or the rear side of the inner pot 10.

[0060] Among them, such as Figure 2As shown, the cooking device 10 also includes a heating element 400 and a convection fan 500. Both the convection fan 500 and the heating element 400 are disposed in the convection cavity 112. The heating element 400 includes, but is not limited to, a heating tube. The heating tube and the convection fan 500 can be fixed on the isolation plate 200. In this way, the isolation plate 200 can protect the heating tube to prevent it from being exposed in the cooking cavity 111, thereby preventing the heating tube from being easily damaged when touching it when taking food out. By setting the convection fan 500 in the convection cavity 112, the convection fan 500 can cause air convection in the convection cavity 112 and the cooking cavity 111. During cooking, the hot air generated by the heating element can make the temperature distribution in the cooking cavity 111 more uniform under the action of the convection fan 500, and the hot airflow can more evenly wrap the food, thereby improving the cooking effect.

[0061] For example, the convection fan 500 is fixed to the fixing plate. The fixing plate can be detachably fixed to the side of the isolation plate 200 away from the cooking cavity 111 by means of buckles, threaded connections, etc., so as to facilitate the subsequent maintenance, repair and replacement of the convection fan 500.

[0062] To further enhance the convection effect between the cooking cavity 111 and the convection cavity 112, please refer to... Figure 3 As shown, the multiple microwave shielding holes 210 include multiple first microwave shielding holes 211, and the multiple first microwave shielding holes 211 together form a first hole group. The first hole group is located near the center of the isolation plate 200, which can improve the convection efficiency of gas between the cooking cavity 111 and the convection cavity 112.

[0063] For example, the overall outer contour of the first hole group includes, but is not limited to, a circle. That is, multiple microwave shielding holes 210 are arranged in sequence at intervals near the center of the isolation plate 200 to form an overall outer contour of a circle. This allows the airflow in the convection cavity 112 and the cooking cavity 111 to convect evenly from the center of the isolation plate 200 to the surrounding area, avoiding the problem of uneven local airflow convection.

[0064] Additionally, please continue to refer to Figure 3 As shown, the multiple microwave shielding holes 210 include multiple second microwave shielding holes 212, and the multiple second microwave shielding holes 212 together form a second hole group. The second hole group extends circumferentially along the edge of the isolation plate 200 so that the second pattern surrounds the outside of the first pattern. In this way, the convection efficiency of gas between the cooking cavity 111 and the convection cavity 112 can be further improved.

[0065] For example, such as Figure 3As shown, the overall outline of the first hole group is circular, and the overall outline of the second hole group is rectangular, located on the outer periphery of the first hole group and extending circumferentially along the partition plate 200. The overall outline of the second hole group can be a closed annular structure or a non-closed shape, for example, as shown... Figure 3 In the second hole group, the overall outline is two "L" shaped structures. In this way, the airflow at the edge of the convection cavity 112 and the cooking cavity 111 can be convected along each of the second microwave shielding holes 212 in the second hole group, reducing the dead angle of airflow convection and improving the airflow convection coverage.

[0066] The diameter of the first microwave shielding hole 211 in the first hole group and the diameter of the second microwave shielding hole 212 in the second hole group can both be circular, and the diameter is less than or equal to 5mm. The diameter of the first microwave shielding hole 211 in the first hole group and the diameter of the second microwave shielding hole 212 in the second hole group can be the same or different. In this way, while ensuring gas convection between the cooking cavity 111 and the convection cavity 112 through the microwave shielding hole 210, microwave leakage from each of the first microwave shielding hole 211 and each of the second microwave shielding holes 212 can be prevented.

[0067] In some embodiments, please refer to Figure 4 As shown, the air inlet 113 includes a plurality of first circular holes 1131, the diameter of which is less than or equal to 5 mm. In this way, the air inlet 113 can provide secondary shielding for microwaves, preventing microwaves from leaking from the air inlet 113 and further enhancing the safety hazard of microwave leakage.

[0068] In addition, the vent includes multiple second circular holes with a diameter of less than or equal to 5mm. This allows for secondary shielding of microwaves at the vent, preventing microwave leakage and further enhancing the safety hazard of microwave leakage.

[0069] In other words, by setting both the air inlet 113 and the exhaust port to be composed of multiple small round holes, while ensuring air intake and exhaust, it is possible to avoid the safety hazard caused by excessively large apertures of the air inlet 113 and the exhaust port, which would result in microwaves leaking into the convection cavity 112 and then leaking out through the air inlet 113 and the exhaust port. This forms a two-stage structure to prevent microwave leakage, further improving the safety and reliability of the cooking equipment 10 during operation.

[0070] Please continue to refer to Figure 1 and Figure 4As shown, the air guide assembly 300 also includes an air guide duct 320. The air guide duct 320 is located outside the inner liner 100 and communicates with the air inlet 113. The end of the air guide duct 320 is sealed to the rear wall of the inner liner 100. The end of the air guide duct 320 away from the air inlet 113 is connected to the air outlet of the air guide fan 310. In this way, the connection reliability between the air guide duct 320 and the air inlet 113 can be improved, and the problem of gas leakage can be prevented.

[0071] The air duct 320 can be a rigid pipe. The end of the air duct 320 can be sealed to the rear wall of the inner liner 100 by welding, bonding or threading. The air duct 320 completely covers the air inlet 113. The other end of the air duct 320 is connected to the air outlet of the air duct fan 310 so that air can be blown into the cooking cavity 111 by the air duct fan 310.

[0072] In addition, the air guide assembly 300 also includes a connecting hose 330 and an exhaust valve 340. The air outlet of the air guide fan 310 is sealed to the air inlet of the exhaust valve 340, the air outlet of the exhaust valve 340 is sealed to the connecting hose 330, and the connecting hose 330 is sealed to the air guide pipe 320. This can further improve the reliability of the connection between the exhaust valve 340 and the connecting pipe and prevent gas leakage.

[0073] The connecting hose 330 includes, but is not limited to, rubber hoses, which can be bent in any way to improve the utilization of the rear space of the inner liner 100 and the compactness of the structure.

[0074] The outer side of the vent also has an vent connector, which extends to the outer side of the inner liner 100 and is fastened to the inner liner 100 by means of threaded connection or other means.

[0075] Therefore, in the cooking equipment provided in this application embodiment, by setting an isolation plate in the accommodating cavity of the inner pot, the isolation plate along the front-back direction of the inner pot isolates the accommodating cavity into an independent and sealed cooking cavity and a convection cavity. The convection cavity is located on the rear side of the cooking cavity. The isolation plate is provided with multiple microwave shielding holes to achieve gas convection between the convection cavity and the cooking cavity through the microwave shielding holes. The exhaust port for efficient exhaust and the air inlet connected to the air guide assembly are both located in the convection cavity. In this way, when the food is heated by microwaves in the cooking cavity, the isolation plate and the microwave shielding holes can shield the microwaves, thereby preventing microwave leakage. When it is necessary to exhaust steam, the air guide fan blows air into the convection cavity, so that the steam in the cooking cavity enters the convection cavity through the microwave shielding holes and is then discharged through the exhaust port. Thus, while preventing microwave leakage, efficient exhaust can be achieved, thereby improving the safety and reliability of the cooking equipment during operation.

[0076] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0077] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.

[0078] It should be readily understood that the terms “on,” “above,” and “on top of” in this application should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on top of something” but also “on top of something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0079] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90° or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0080] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A cooking device, characterized in that, include: The inner liner (100) has an internal cavity (110), and the rear wall of the inner liner (100) has an openable and closable air inlet (113) and an exhaust outlet. An isolation plate (200) is disposed in the accommodating cavity (110) and sealed to the inner wall of the inner liner (100) to isolate the accommodating cavity (110) into an independent cooking cavity (111) and a convection cavity (112) along the front-back direction of the inner liner (100). The cooking cavity (111) is provided with a microwave generator. The air inlet (113) and the exhaust outlet are both located in the convection cavity (112). The isolation plate (200) is provided with a plurality of microwave shielding holes (210), and each microwave shielding hole (210) is through in the front-back direction so that the gas in the cooking cavity (111) and the convection cavity (112) can be convection through the microwave shielding holes (210). The air guide assembly (300) includes an air guide fan (310) disposed on the outside of the inner liner (100). The air outlet of the air guide fan (310) is connected to the air inlet (113) so that the air guide fan (310) blows air into the convection chamber (112), thereby causing the steam in the cooking chamber (111) to be discharged through the convection chamber (112) and the exhaust port.

2. The cooking apparatus according to claim 1, characterized in that, The circumferential edge of the isolation plate (200) is welded or riveted to the inner surface of the inner liner (100).

3. The cooking apparatus according to claim 1, characterized in that, The plurality of microwave shielding holes (210) include a plurality of first microwave shielding holes (211), the plurality of first microwave shielding holes (211) together form a first hole group, the first hole group being located near the center of the isolation plate (200).

4. The cooking apparatus according to claim 3, characterized in that, The plurality of microwave shielding holes (210) include a plurality of second microwave shielding holes (212), the plurality of second microwave shielding holes (212) together forming a second hole group, the second hole group extending circumferentially along the edge of the isolation plate (200) to surround the outside of the first hole group.

5. The cooking apparatus according to claim 4, characterized in that, The first hole group has a circular outline; and / or, The second hole group has a rectangular outline.

6. The cooking apparatus according to any one of claims 1-5, characterized in that, The microwave shielding hole (210) has a circular outline and the diameter of the microwave shielding hole (210) is less than or equal to 5 mm.

7. The cooking apparatus according to any one of claims 1-4, characterized in that, The air inlet (113) includes a plurality of first circular holes (1131), the diameter of which is less than or equal to 5 mm; and / or, The exhaust port includes a plurality of second circular holes, the diameter of which is less than or equal to 5 mm.

8. The cooking apparatus according to claim 7, characterized in that, The air guide assembly (300) further includes an air guide pipe (320), which is located outside the inner liner (100) and communicates with the air inlet (113). The end of the air guide pipe (320) is sealed to the rear wall of the inner liner (100), and the end of the air guide pipe (320) away from the air inlet (113) is connected to the air outlet of the air guide fan (310).

9. The cooking apparatus according to claim 8, characterized in that, The air guide assembly (300) further includes a connecting hose (330) and an exhaust valve (340). The air outlet of the air guide fan (310) is sealed to the air inlet of the exhaust valve (340). The air outlet of the exhaust valve (340) is sealed to the connecting hose (330). The connecting hose (330) is sealed to the air guide pipe (320).

10. The cooking apparatus according to any one of claims 1-4, characterized in that, The cooking device also includes a heating element (400) and a convection fan (500), both of which are disposed within the convection cavity (112).

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