Cooking appliance

Abstract

This application relates to the field of household appliance technology, specifically disclosing a cooking appliance, including an outer cover and a body. The outer cover includes a first opening, and the body includes a base and a microwave generator. The top of the base has a shelf. The outer cover is detachably fastened to the top of the base, and the first opening is closed by the shelf. The shelf and the outer cover enclose a cooking cavity. The microwave generator is located inside the base, and the microwaves emitted by the microwave generator can pass through the shelf and enter the cooking cavity. The base includes a choke structure, which is arranged around the outside of the first opening. In this application, a choke structure is provided on the base, and by surrounding the first opening of the outer cover, the choke structure shields the fastening point between the outer cover and the body, reducing microwave leakage. Eliminating the choke structure on the outer cover effectively reduces its weight, saving users time and effort when removing and placing the outer cover, thereby improving the user experience.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a cooking utensil. Background Technology

[0002] This section provides only background information relevant to this disclosure and is not necessarily prior art.

[0003] Microwave cooking appliances with a flip-top cover allow users to easily access food inside the cooking cavity by opening the outer cover, thus improving user convenience.

[0004] In related technologies, a choke structure is incorporated into the outer casing to reduce microwave leakage. This choke shields the microwaves, minimizing leakage within the cooking cavity. However, casings with choke structures are heavy, making them difficult for users to open and close, thus compromising the user experience. Utility Model Content

[0005] The purpose of this invention is to at least solve the problem of the large mass of the outer casing with the choke structure. This purpose is achieved through the following technical solution:

[0006] This application discloses a cooking appliance, the cooking appliance comprising:

[0007] Outer cover, the outer cover including a first opening;

[0008] The machine body includes a base and a microwave generator. The top of the base is provided with a placement surface. The outer cover is detachably fastened to the top of the base. The first opening is closed by the placement surface. The placement surface and the outer cover enclose a cooking cavity. The microwave generator is located inside the base. The microwaves emitted by the microwave generator can pass through the placement surface and be fed into the cooking cavity. The base includes a choke structure, which is arranged around the outside of the first opening.

[0009] In this application, a choke structure is provided on the base, and by surrounding the first opening of the outer casing, the choke structure shields the connection point between the outer casing and the main body, reducing microwave leakage. The elimination of the choke structure on the outer casing effectively reduces its weight, making it easier and faster for users to remove and place the casing, thus improving the user experience.

[0010] In addition, the cooking utensil according to this utility model may also have the following additional technical features:

[0011] In some embodiments of this utility model, the base further includes:

[0012] A housing, the housing including a second opening;

[0013] A choke is disposed within the housing and has a cavity. The top of the cavity has a first connecting port, which is opposite to a second opening. A choke structure is disposed on the choke and surrounds the first connecting port. The choke structure is enclosed by the housing. The microwave generator is connected to the cavity.

[0014] A wave-transparent plate, which is at least connected to the choke and closes the first communication port, forms at least part of the placement surface, and the microwaves emitted by the microwave generator can be fed into the cooking cavity through the cavity and the wave-transparent plate.

[0015] In some embodiments of this utility model, the microwave generating device includes:

[0016] Microwave generating components;

[0017] A waveguide assembly, wherein the microwave generating component is connected to the bottom of the cavity via the waveguide assembly.

[0018] In some embodiments of this utility model, the bottom of the cavity is provided with a second communication port, the second communication port is disposed opposite to the first communication port, the waveguide assembly is connected to the choke, and the waveguide assembly is connected to the cavity through the second communication port.

[0019] In some embodiments of this utility model, the waveguide assembly includes:

[0020] A waveguide shell includes a first region, a second region, and an opening. The first region is connected to the second region. A first portion of the opening is disposed opposite to the first region, and a second portion of the opening is disposed opposite to the second region.

[0021] A waveguide cover is connected to the waveguide shell. The waveguide cover is disposed on the first part and has a through hole. The microwave emitter of the microwave generating component extends into the first region through the through hole. The second part constitutes a microwave feed outlet, which is used to connect to the second communication port.

[0022] In some embodiments of this utility model, the waveguide assembly further includes a microwave reflector, which is disposed inside the waveguide shell and is positioned opposite to the microwave feed outlet.

[0023] In some embodiments of this utility model, the microwave reflector includes at least one row of reflectors, each row of reflectors including at least one plate, the plate being disposed intersecting with the plane where the microwave feed outlet is located.

[0024] In some embodiments of this utility model, the microwave reflector includes multiple rows of reflectors, and in two adjacent rows of reflectors, the plate of one row of reflectors is staggered from the plate of the other row of reflectors.

[0025] In some embodiments of this invention, the microwave generating component is disposed on the side of the cooking cavity.

[0026] In some embodiments of this utility model, the housing further includes a limiting structure, which is arranged around the outer side of the placement surface, and the edge of the outer cover abuts against the limiting structure or is disposed on the inner side of the limiting structure.

[0027] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, specific embodiments of this application are given below. Attached Figure Description

[0028] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0029] Figure 1 A schematic diagram of the structure of a cooking utensil according to an embodiment of the present invention is shown.

[0030] Figure 2 for Figure 1 A schematic diagram of the cooking utensil shown from another perspective (showing part of the structure);

[0031] Figure 3 for Figure 2 A schematic diagram of the exploded structure of the cooking utensil shown;

[0032] Figure 4 for Figure 3 The exploded structural diagram of the outer cover shown;

[0033] Figure 5 for Figure 3 The diagram shows the structure of the choke.

[0034] Figure 6 for Figure 3 The diagram shows an exploded view of the microwave generator.

[0035] The attached figures are labeled as follows:

[0036] 100. Cooking utensils;

[0037] 10. Outer cover;

[0038] 11. Cover body; 111. First opening; 12. Handle; 13. Transparent panel;

[0039] 20. Base;

[0040] 21. Housing; 211. Limiting structure; 22. Microwave generator; 221. Microwave generating component; 222. Waveguide assembly; 2221. Waveguide cover; 22211. Through hole; 2222. Waveguide shell; 22221. Opening; 222211. First part; 222212. Second part; 22222. First region; 22223. Second region; 2223. Microwave reflector; 22231. Plate; 23. Choke; 231. Choke structure; 232. Cavity; 233. First connecting port; 234. Second connecting port; 24. Wave-transparent plate. Detailed Implementation

[0041] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0042] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0043] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0044] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented as "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0045] like Figures 1 to 6 As shown, according to an embodiment of the present invention, a cooking appliance 100 is proposed, which includes an outer cover 10 and a body.

[0046] Specifically, the outer cover 10 includes a receiving space and a first opening 111, with the receiving space communicating with the outside through the first opening 111. The main body includes a base 20 with a shelf surface, which is located on top of the base 20. The outer cover 10 is fastened to the top of the base 20, and the shelf surface closes the first opening 111 of the outer cover 10. The shelf surface and the outer cover 10 together form a cooking cavity, which constitutes the bottom surface of the cooking cavity. The outer cover 10 can be separated from the top of the main body. When the outer cover 10 is separated from the top of the base 20, the cooking cavity can be opened, allowing food to be placed or removed from the shelf surface. When cooking is required, the outer cover 10 is fastened back to the top of the base 20, and the shelf surface is used to close the first opening 111 of the outer cover 10, forming the cooking cavity, which is used to contain food.

[0047] Furthermore, a choke structure 231 is provided on the base 20. When the outer cover 10 is fastened to the top of the body, the choke structure 231 is arranged around the outside of the first opening 111 of the outer cover 10, that is, the outer cover 10 is surrounded on the circumferential outside of the outer cover 10.

[0048] The microwave generator 22 is installed inside the base 20. The microwaves generated by the microwave generator 22 can be fed into the cooking cavity from bottom to top through the food surface. The microwaves fed into the cooking cavity heat the food, thereby realizing the cooking operation of the food.

[0049] In this application, a choke structure 231 is provided on the base 20, and by surrounding the first opening 111 of the outer cover 10, the choke structure 231 shields the connection point between the outer cover 10 and the main body, reducing microwave leakage. The elimination of the choke structure 231 on the outer cover 10 effectively reduces its weight, saving users time and effort when placing and removing it, thus improving the user experience.

[0050] It should be understood that the placement surface is a planar structure, and the outer cover 10 and the placement surface together form the cooking cavity. The placement surface constitutes the bottom surface of the cooking cavity, and the accommodating space inside the outer cover 10 constitutes the other inner walls of the cooking cavity.

[0051] When the cooking cavity needs to be opened, the user removes the outer cover 10 (for example, by lifting the outer cover 10) so that the cooking cavity can be fully opened. At this time, the food (set on the placement surface) can be fully exposed, making the cooking cavity open and facilitating the user's handling of food.

[0052] Due to manufacturing tolerances, there is a gap at the joint between the outer cover 10 and the placement surface, which can easily lead to microwave leakage within the cooking cavity. By circumferentially positioning the choke structure 231 around the outside of the first opening 111, a microwave shielding structure is formed around the first opening 111, thus shielding the leaking microwaves and improving safety during use.

[0053] In addition, the outer cover 10 is made of a non-wave-transparent material (e.g., metal), meaning that microwaves inside the cooking cavity cannot penetrate the outer cover 10 to transmit outwards, thereby improving safety during use.

[0054] It should be noted that the outer cover 10 includes a cover body 11, a handle 12, and a transparent panel 13 (glass or acrylic, etc.). The handle 12 is located on the outer surface of the cover body 11, allowing users to easily pick up and put down the cover body 11, thus improving user convenience. A viewing window is provided on the cover body 11, and a wave-damping structure (such as a mesh structure, preventing microwaves from reaching the outside of the cooking cavity) is installed at the window location. The transparent panel 13 is embedded in the viewing window, allowing users to easily observe the food inside the cooking cavity during cooking, further enhancing user convenience and improving the user experience.

[0055] In some embodiments of this utility model, such as Figure 3 As shown, the base 20 also includes a housing 21, a choke 23, and a wave-transparent plate 24.

[0056] Specifically, a second opening is provided on the housing 21, and the microwave generator 22 and the choke 23 are both disposed inside the housing 21. The choke 23 is provided with a cavity 232 having a first communication port 233. The cavity 232 is formed by the choke 23 recessed towards the side away from the outer cover 10. The first communication port 233 is located at the top of the cavity 232 and is disposed opposite to the second opening. The choke structure 231 is disposed on the choke 23 and is arranged circumferentially around the first communication port 233. The housing 21 encloses at least part of the outer surface of the choke 23 (the surface of the choke 23 facing the outer cover 10) (the choke structure 231 is enclosed by the housing 21). The wave-transparent plate 24 is connected to the choke 23 (or the wave-transparent plate 24 is connected to the choke 23 and the housing 21 respectively). The wave-transparent plate 24 closes the first communication port 233 of the cavity 232. At this time, the wave-transparent plate 24 closes the top of the cavity 232. The wave-transparent plate 24 constitutes at least part of the structure of the placement surface. The cavity 232 of the choke 23 is connected to the microwave generator 22.

[0057] When the microwave generator 22 is running, the generated microwaves enter the cavity 232 and are fed into the cooking cavity through the wave-transparent plate 24 to heat and cook the food in the cooking cavity.

[0058] Furthermore, the shape of the second opening of the housing 21 is the same as the shape of the first connecting port 233 of the cavity 232, and the area of ​​the second opening is greater than or equal to the surface area of ​​the first connecting port 233.

[0059] In addition, the microwave-transparent plate 24 can meet the requirements of microwave transmission, for example, it can be a glass plate or a synthetic plastic plate. The fixing methods of the microwave-transparent plate 24 include, but are not limited to, bonding, snap-fitting, or connection via connectors.

[0060] It should be understood that the choke structure 231 is provided on the choke member 23 and is provided outside the first opening 111 of the cavity 232. The abutting edge of the outer cover 10 is located inside the choke structure 231. At this time, the choke structure 231 can effectively shield microwaves, thereby reducing the risk of microwave leakage and improving the safety of the cooking appliance 100 during use.

[0061] The choke structure 231 can be integrally formed with the choke component 23, or it can be processed separately and fixed onto the choke component 23.

[0062] In addition, the choke structure 231 is a choke tooth (e.g., an L-shaped tooth), and there are multiple choke teeth. The multiple choke teeth are spaced apart along the circumferential direction of the first communication port 233, wherein the spacing between two adjacent choke teeth satisfies the condition that microwaves cannot pass through.

[0063] It should be noted that in this application, the housing 21 can be made of plastic, which not only facilitates processing and reduces manufacturing costs, but also reduces the overall weight of the cooking appliance 100, making it easier for users to move the cooking appliance 100 and improving the convenience of use.

[0064] In some embodiments of this utility model, such as Figure 2 , Figure 3 as well as Figure 6 As shown, the microwave generating device 22 includes a microwave generating component 221 and a waveguide assembly 222. The bottom of the cavity 232 is connected to the microwave generating component 221 through the waveguide assembly 222.

[0065] Specifically, the connection between the waveguide component 222 and the cavity 232 is located at the bottom of the cavity 232, which enables the waveguide component 222 to transmit microwaves from the bottom of the cavity 232, reducing energy loss caused by microwave reversal.

[0066] In some embodiments of this utility model, such as Figure 5 As shown, a second communication port 234 is provided at the bottom of the cavity 232, and the first communication port 233 is arranged opposite to the second communication port 234. The choke 23 is connected to the waveguide assembly 222, and the cavity 232 is connected to the second communication port 234 through the waveguide assembly 222.

[0067] This configuration allows the microwaves emitted by the microwave generator 22 to effectively enter the cavity 232, and then be fed into the cooking cavity through the wave-transparent plate 24, thereby effectively realizing the cooking operation of food.

[0068] In some embodiments of this utility model, such as Figure 6As shown, waveguide assembly 222 includes waveguide shell 2222 and waveguide cover 2221.

[0069] Specifically, the waveguide shell 2222 is a shell-shaped structure with an internal accommodating space. One side of the shell-shaped structure has an opening, making the accommodating space an open structure. The accommodating space includes a first region 22222 and a second region 22223 that are connected to each other. The opening includes a first part 222211 and a second part 222212. The first part 222211 is arranged opposite to the first region 22222 (the first region 22222 communicates with the outside through the first part 222211), and the second part 222212 is arranged opposite to the second region 22223 (the second region 22223 communicates with the outside through the second part 222212).

[0070] Waveguide cover 2221 is fixed on waveguide shell 2222. Waveguide cover 2221 covers the first open portion 222211 and closes the first open portion 222211. The second open portion 222212 has an open structure. A through hole 22211 is provided on the waveguide cover 2221. The through hole 22211, the first region 22222, the second region 22223 and the second open portion 222212 are sequentially connected to form a channel structure for microwaves to pass through.

[0071] The microwave generator 221's emitter is inserted into the first region 22222 through a through-hole 22211, and the open second part 222212 constitutes a microwave feed outlet. When the microwave generator 22 is running, the microwave emitter emits microwaves, which are transmitted through the first region 22222 to the second region 22223, then through the second region 22223 to the microwave feed outlet, and finally enter the cooking cavity through the microwave feed outlet to heat and cook the food in the cooking cavity.

[0072] The waveguide assembly 222 is configured into two parts: a waveguide shell 2222 and a waveguide cover 2221, which facilitates processing and manufacturing and improves processing efficiency.

[0073] It should be noted that the waveguide cover 2221 and the waveguide can be metal parts, and both can be processed by stamping. The connection between the waveguide cover 2221 and the waveguide shell 2222 includes, but is not limited to, snap-fit ​​or connection via connectors. In addition, the connection position between the waveguide cover 2221 and the waveguide shell 2222 prevents microwaves from passing through, thereby reducing microwave leakage.

[0074] In addition, the waveguide shell 2222 is located at the bottom of the cooking cavity. Along the height direction of the cooking cavity, the waveguide shell 2222 is arranged in a flat tube structure, which can reduce the space occupied by the waveguide shell 2222 in the height direction of the cooking cavity.

[0075] Furthermore, the waveguide housing 2222 is connected to the outer surface of the bottom of the choke 23, and the connection method includes, but is not limited to, snap-fit ​​or connection via a connector. At the same time, the connection position between the waveguide housing 2222 and the outer surface of the bottom of the choke 23 meets the condition that microwaves cannot leak, thereby improving the safety performance of the cooking appliance 100 during use.

[0076] In some embodiments of this utility model, such as Figure 6 As shown, the microwave device includes a microwave generating component 221 and a waveguide assembly 222. The waveguide assembly 222 includes a waveguide shell 2222, a waveguide cover 2221, and a microwave reflector 2223.

[0077] Specifically, the waveguide shell 2222 is a shell-shaped structure with an internal accommodating space. One side of the shell-shaped structure has an opening, making the accommodating space an open structure. The accommodating space includes a first region 22222 and a second region 22223 that are connected to each other. The opening includes a first part 222211 and a second part 222212. The first part 222211 is arranged opposite to the first region 22222 (the first region 22222 communicates with the outside through the first part 222211), and the second part 222212 is arranged opposite to the second region 22223 (the second region 22223 communicates with the outside through the second part 222212). A waveguide cover 2221 is fixed to a waveguide shell 2222, closing the first open portion 222211 and the second open portion 222212, which has an open structure. A through-hole 22211 is provided on the waveguide cover 2221. The through-hole 22211, the first region 22222, the second region 22223, and the second open portion 222212 are sequentially connected to form a channel structure for microwave transmission. The emitter of the microwave generating component 221 is inserted into the first region 22222 through the through-hole 22211, and the second open portion 222212 constitutes a microwave feed outlet. When the microwave device is running, the microwave emitter emits microwaves, which are transmitted through the first region 22222 to the second region 22223, then through the second region 22223 to the microwave feed outlet, and finally enter the cooking cavity to heat and cook the food inside.

[0078] The microwave reflector 2223 is disposed within the second region 22223 of the waveguide shell 2222, and is positioned opposite to the microwave feed outlet. By using the microwave reflector 2223, when microwaves travel from the first region 22222 to the second region 22223, the reflector reflects the microwaves, thereby improving the uniformity of the microwaves. This enhances the uniformity of the microwaves entering the cooking cavity through the microwave feed outlet, ultimately improving the uniformity of microwave heating of the food and thus enhancing the cooking quality.

[0079] In some embodiments of this utility model, such as Figure 6 As shown, the microwave reflector 2223 includes a reflector, the number of which is at least one row. Each row of reflectors includes a plate 22231, the number of which is at least one. The plate 22231 is a flat plate structure, which is intersected with the plane where the microwave feed outlet is located.

[0080] Specifically, when microwaves are transmitted from the first region 22222 of the waveguide shell 2222 to the second region 22223, the plate 22231 has the function of reflecting microwaves. At the same time, microwaves can propagate along the extension direction of the plate 22231. The reflection of microwaves by the plate 22231 can improve the uniformity of microwaves. Furthermore, by setting the plate 22231, which is a flat plate structure, to intersect with the plane where the microwave feed outlet is located, the microwaves propagating along the extension direction of the plate 22231 can be directed towards the microwave feed outlet, thereby improving the directivity of microwave propagation and thus improving the efficiency of microwave propagation.

[0081] It is important to understand that the number of reflectors can be one, two, three, four, five, six, seven, etc.

[0082] It should be noted that when there are multiple rows of reflectors, the reflectors are arranged at intervals in the arrangement direction of the first region 22222 and the second region 22223. By setting multiple rows of reflectors, the uniformity of microwaves and the efficiency of propagation are further improved.

[0083] In some embodiments of this utility model, such as Figure 6 As shown, the microwave reflector 2223 includes multiple rows of reflectors. In two adjacent rows of reflectors, the plate 22231 of one row of reflectors is staggered from the plate 22231 of the other row of reflectors.

[0084] Specifically, the microwave reflector 2223 includes multiple rows of reflectors. In two adjacent rows of reflectors, the plate 22231 of one row of reflectors is staggered from the plate 22231 of the other row of reflectors.

[0085] Specifically, by setting the plates 22231 of two adjacent rows of reflectors to be staggered, the plates 22231 can all participate in the reflection of microwaves, which further improves the uniformity of microwaves and makes the heating of food by microwaves fed into the cooking cavity more uniform.

[0086] In some embodiments of this utility model, the microwave generating component 221 is disposed inside the machine body and is located outside the cooking cavity. Specifically, the microwave generating component 221 may be disposed at the top, bottom or side of the cooking cavity.

[0087] For example, such as Figure 2As shown, the microwave generating component 221 is located on the side of the cooking cavity. The microwave generating component 221 (e.g., a magnetron) is usually large in size. By placing the microwave generating component 221 on the side of the cooking cavity, the space occupied by the microwave generating component 221 in the vertical direction of the cooking cavity can be reduced, and the cooking appliance 100 can be flattened. This makes it easier to set the placement position of the cooking appliance 100 and further improves the convenience of the user during use.

[0088] In addition, the microwave generating component 221 is located on the side of the cooking cavity, and other power devices (such as frequency converters and electronic controllers) can also be located on the side of the cooking cavity. By setting up a unified heat dissipation duct, heat exchange can be achieved for the power devices of the cooking appliance 100, which improves the convenience of heat dissipation duct layout, reduces the length of heat dissipation duct, and improves the heat dissipation effect.

[0089] In some embodiments of this utility model, such as Figure 1 As shown, the housing 21 also includes a limiting structure 211, which is arranged around the outer side of the placement surface. The edge of the outer cover 10 abuts against the limiting structure 211 or is disposed on the inner side of the limiting structure 211.

[0090] By setting a limiting structure 211 and using the limiting structure 211 to limit the position of the outer cover 10, the accuracy of the placement of the outer cover 10 is improved, the leakage of microwaves is further reduced, and the safety performance of the cooking appliance 100 is further improved.

[0091] It should be noted that the limiting structure 211 can be a rib structure formed on the housing 21, or a groove structure formed on the housing 21, etc.

[0092] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A cooking appliance characterized by, The cooking appliance includes: Outer cover, the outer cover including a first opening; The machine body includes a base and a microwave generator. The top of the base is provided with a placement surface. The outer cover is detachably fastened to the top of the base. The first opening is closed by the placement surface. The placement surface and the outer cover enclose a cooking cavity. The microwave generator is located inside the base. The microwaves emitted by the microwave generator can pass through the placement surface and be fed into the cooking cavity. The base includes a choke structure, which is arranged around the outside of the first opening.

2. The cooking appliance of claim 1, wherein, The base also includes: A housing, the housing including a second opening; A choke is disposed within the housing and has a cavity. The top of the cavity has a first connecting port, which is opposite to a second opening. A choke structure is disposed on the choke and surrounds the first connecting port. The choke structure is enclosed by the housing. The microwave generator is connected to the cavity. A wave-transparent plate, which is at least connected to the choke and closes the first communication port, forms at least part of the placement surface, and the microwaves emitted by the microwave generator can be fed into the cooking cavity through the cavity and the wave-transparent plate.

3. The cooking appliance of claim 2, wherein, The microwave generator includes: Microwave generating components; A waveguide assembly, wherein the microwave generating component is connected to the bottom of the cavity via the waveguide assembly.

4. The cooking appliance of claim 3, wherein, The bottom of the cavity is provided with a second communication port, which is opposite to the first communication port. The waveguide assembly is connected to the choke, and the waveguide assembly is connected to the cavity through the second communication port.

5. The cooking appliance of claim 4, wherein, The waveguide assembly includes: A waveguide shell includes a first region, a second region, and an opening. The first region is connected to the second region. A first portion of the opening is disposed opposite to the first region, and a second portion of the opening is disposed opposite to the second region. A waveguide cover is connected to the waveguide shell. The waveguide cover is disposed on the first part and has a through hole. The microwave emitter of the microwave generating component extends into the first region through the through hole. The second part constitutes a microwave feed outlet, which is used to communicate with the second communication port.

6. The cooking appliance of claim 5, wherein, The waveguide assembly also includes a microwave reflector, which is disposed inside the waveguide housing and is positioned opposite to the microwave feed outlet.

7. The cooking appliance of claim 6, wherein, The microwave reflector includes at least one row of reflectors, and each row of reflectors includes at least one plate, which is disposed intersecting with the plane where the microwave feed outlet is located.

8. The cooking appliance of claim 7, wherein, The microwave reflector includes multiple rows of reflectors, and in two adjacent rows of reflectors, the plate of one row of reflectors is staggered from the plate of the other row of reflectors.

9. The cooking appliance of claim 3, wherein, The microwave generating component is located on the side of the cooking cavity.

10. The cooking appliance according to any one of claims 2 to 9, characterized in that, The housing also includes a limiting structure, which is arranged around the outside of the placement surface, and the edge of the outer cover abuts against the limiting structure or is located inside the limiting structure.

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