Microwave oven

Abstract

The invention relates to the technical field of cooking utensils, and discloses a microwave oven which comprises a microwave main body and a top cover assembly, and a cooking groove with a top opening is formed in the microwave main body; the top cover assembly comprises a top cover and microwave choke pieces, any one of the two end faces, in the top-bottom direction, of the top cover covers the opening so as to jointly define a cooking cavity, the number of the microwave choke pieces is multiple, and the microwave choke pieces are arranged on the top cover at intervals in the top-bottom direction. The microwave oven provided by the invention is convenient to clean.

Description

Technical Field

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

[0002] A microwave oven is a cooking appliance that heats food by having it absorb microwave energy in a microwave field. It uses a microwave generator to convert electrical energy into microwaves. The generated microwaves create a microwave electric field inside the cooking cavity of the microwave oven. When the food absorbs the microwaves, the molecules inside the food vibrate and rub against each other, generating heat energy, thus achieving the purpose of heating.

[0003] In related technologies, the microwave oven door assembly cannot be disassembled, making the cooking cavity difficult to clean. Summary of the Invention

[0004] In view of this, the present application aims to provide a microwave oven that is easy to clean.

[0005] To achieve the above objectives, the technical solution of this application embodiment is implemented as follows:

[0006] This application discloses a microwave oven, including:

[0007] The microwave body forms a cooking basin with an opening at the top;

[0008] The top cover assembly includes a top cover and microwave chokes. Either of the two end faces of the top cover along the top-bottom direction is disposed on the opening to jointly define the cooking cavity. The number of microwave chokes is multiple, and the multiple microwave chokes are spaced apart on the top cover along the top-bottom direction.

[0009] In one embodiment, a portion of the top cover protrudes upward or is recessed downward to form a receiving groove and an opening communicating with the receiving groove, and the top cover is disposed on the side of the top cover away from the opening along the top-bottom direction or on the side of the top cover having the opening.

[0010] In one embodiment, the microwave oven includes an absorbing layer, the bottom surface of the receiving slot is a grilling surface, and the absorbing layer is disposed on the side of the top cover away from the slot opening along the top-bottom direction. When the top cover is disposed on the side away from the slot opening along the top-bottom direction, the absorbing layer absorbs microwaves from the cooking cavity to heat the grilling surface.

[0011] In one embodiment, the top cover assembly includes a cover plate disposed on the side of the top cover away from the slot along the top-bottom direction. The projection area of ​​the cover plate along the top-bottom direction is located within the projection area of ​​the opening. When the top cover is disposed on the side of the top cover away from the slot along the top-bottom direction, at least a portion of the cover plate is located inside the cooking tank.

[0012] In one embodiment, two of the plurality of microwave chokes are respectively a first microwave choke and a second microwave choke. The top cover includes a cover body and an annular shell. The annular shell is circumferentially spaced around the outer peripheral wall of the cover body to jointly define an annular cavity. The annular cavity penetrates the top surface of the annular shell to form a first communication port. The first microwave choke is located at the first communication port and connected to the cover body. The annular cavity penetrates the bottom surface of the annular shell to form a second communication port. The second microwave choke is located at the second communication port and connected to the cover body.

[0013] In one embodiment, the top cover assembly includes a sealing ring disposed at the first communication port to seal the first communication port.

[0014] In one embodiment, the top cover assembly includes a door seal disposed between the second microwave choke and the annular shell to block the second communication port.

[0015] In one embodiment, the microwave choke includes a ring plate and choke teeth. The ring plate is circumferentially disposed around the outer peripheral wall of the cover. The ring plate includes a first extension plate and a second extension plate. One end of the first extension plate is connected to the outer peripheral wall of the cover. The other end of the first extension plate extends outward in the inward and outward direction and is connected to the second extension plate. The other end of the second extension plate extends away from the first extension plate in the top and bottom direction and is connected to one end of the choke teeth. The other end of the choke teeth is curled to form a choke groove, wherein the inward and outward direction is perpendicular to the top and bottom direction.

[0016] In one embodiment, the choke tooth includes a first toothed plate, a second toothed plate, a third toothed plate, and a fourth toothed plate. One end of the first toothed plate is connected to the second extension plate, and the other end of the first toothed plate extends outward along the inward-outward direction and is connected to the second toothed plate. The other end of the second toothed plate extends away from the first toothed plate along the top-bottom direction and is connected to one end of the third toothed plate. The other end of the third toothed plate extends inward along the inward-outward direction and is connected to one end of the fourth toothed plate. The other end of each toothed plate extends towards the first toothed plate along the top-bottom direction, thereby collectively defining the choke groove.

[0017] In one embodiment, the number of choke teeth is multiple, and the multiple choke teeth are arranged circumferentially on the ring plate.

[0018] In one embodiment, with either of the two end faces of the top cover covering the opening, the distance between the bottom surface of the microwave choke near the opening along the top-bottom direction and the top surface of the periphery of the opening is between 0.3 mm and 3 mm.

[0019] This application discloses a microwave oven. A cooking cavity is defined by forming a cooking chamber with a top opening in the microwave body. A top cover is positioned on either of its two end faces along the top-to-bottom direction, thus defining the cooking cavity. This design allows for several advantages. First, when cleaning the cooking cavity, the top cover can be removed from the top, enabling users to clean the cavity from top to bottom, reducing labor intensity and improving user experience. Furthermore, the top wall of the cooking cavity, which is difficult to clean, can be cleaned separately after removing the top cover, as it is formed on the top cover, resulting in high cleanliness and a good user experience. Second, the top cover's ability to cover the opening with either end face along the top-to-bottom direction enhances flexibility during use. Additionally, the top cover is equipped with multiple microwave chokes spaced apart along the top-to-bottom direction, significantly reducing the probability of microwave leakage and minimizing radiation damage to the human body, thus ensuring good biosafety. Attached Figure Description

[0020] Figure 1 A schematic diagram of the structure of a microwave oven provided in an embodiment of this application is shown, wherein the top cover has a groove on one side and is positioned at the opening;

[0021] Figure 2 for Figure 1 A cross-sectional diagram;

[0022] Figure 3 for Figure 2 An enlarged view of point A in the diagram;

[0023] Figure 4 A schematic diagram of a microwave oven provided for another embodiment of this application, wherein the top cover is disposed on the side away from the slot along the top-bottom direction;

[0024] Figure 5 for Figure 4 A cross-sectional diagram;

[0025] Figure 6 for Figure 5 Enlarged diagram of point B in the diagram;

[0026] Figure 7 This is a schematic diagram of the structure of the cover, the first microwave choke, and the second microwave choke provided in another embodiment of this application.

[0027] Explanation of reference numerals in the attached figures

[0028] Microwave oven 100; Microwave body 1; Cooking tank 1a; Inner cavity 11; Outer shell 12; Receiving cavity 12a; Mounting cavity 12b; Snap fastener 12c; Inner partition 13; Stirring cavity 13a; Microwave assembly 14; Waveguide 141; Magnetron 142; Motor 143; Inverter 144; Stirring blade 145; Top cover assembly 2; Top cover 21; Connecting ear 21a; Receiving tank 21b; Grilling surface 21b1; Rib 21b2; Slot 21c; Lid 211; Ring shell 212; Ring cavity 212a; First connecting port 212b; Second connecting port 212c; Microwave choke 22; First microwave choke 22a; Second microwave choke 22b; Ring plate 221; First extension plate 2211; Second extension plate 2212; Choke tooth 222; Choke groove 222a; Inlet 222b; First toothed plate 2221; Second toothed plate 2222; Third toothed plate 2223; Fourth toothed plate 2224; Cover plate 23; Door plate 231; Connecting plate 232; Sealing ring 24; Door seal 25; Wave absorbing layer 3. Detailed Implementation

[0029] It should be noted that, unless otherwise specified, the embodiments and technical features in the embodiments of this application can be combined with each other, and the detailed descriptions in the specific implementation should be understood as explanations of the purpose of this application and should not be regarded as undue limitations on this application.

[0030] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. The terms "first," "second," etc., used in the embodiments of this application are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly including at least one feature. In the description of the embodiments of this application, "multiple" means multiple, such as two, three, etc., unless otherwise explicitly specified.

[0031] In related technologies, microwave ovens include a microwave body and a door assembly. The door assembly is located on the front side of the microwave body and is not removable. This means that when it is necessary to clean the cooking cavity inside the microwave body, the user needs to bend over to see the dead corners inside the cooking cavity, which are difficult to clean. Cleaning the top wall of the cooking cavity is even more ergonomic and difficult to clean.

[0032] In view of this, this application provides a microwave oven, please refer to the embodiments provided. Figures 1 to 7 The microwave oven 100 includes a microwave body 1 and a top cover assembly 2. The microwave body 1 forms a cooking cavity 1a with a top opening. The top cover assembly 2 includes a top cover 21 and microwave chokes 22. Either of the two end faces of the top cover 21 along the top-bottom direction is disposed over the opening to jointly define the cooking cavity. There are multiple microwave chokes 22, which are spaced apart on the top cover 21 along the top-bottom direction.

[0033] The microwave oven 100 provided in this application defines a cooking cavity by forming a cooking chamber 1a with a top opening in the microwave body 1, and having either of the two end faces of the top cover 21 along the top-bottom direction covering the opening. This allows for several advantages: First, when cleaning the cooking cavity is required, the top cover 21 can be removed from the top, allowing the user to clean the cavity from top to bottom, reducing the user's workload. Furthermore, the top wall of the cooking cavity, which is difficult to clean, can be cleaned separately after removing the top cover 21, as the top wall is formed on the top cover 21, resulting in high cleanliness and a good user experience. Second, the fact that either of the two end faces of the top cover 21 along the top-bottom direction can cover the opening increases the flexibility of use. Moreover, the multiple microwave chokes 22 spaced apart along the top-bottom direction on the top cover 21 greatly reduce the probability of microwave leakage, minimizing radiation damage to the human body and ensuring good biosafety.

[0034] As an example, in one embodiment, please refer to Figure 2 and Figure 5 The microwave body 1 includes an inner liner 11, an outer shell 12, an inner partition 13, and a microwave assembly 14. The outer shell 12 forms a receiving cavity 12a and a loading / unloading port, which communicates with the receiving cavity 12a and faces upwards. The inner liner 11 is located in the receiving cavity 12a and forms a cooking tank 1a with a top opening, which is aligned and communicates with the loading / unloading port. The space below the inner liner 11 in the receiving cavity 12a is a mounting cavity 12b. The inner partition 13 is located inside the cooking tank 1a and limits the stirring cavity 13a between it and the bottom surface of the cooking tank 1a. The bottom surface of the stirring cavity 13a forms a through-hole, which communicates the stirring cavity 13a and the mounting cavity 12b. The microwave assembly 14 is located in the mounting cavity 12b and includes a waveguide 141, a magnetron 142, and a motor 143. 43. Inverter 144, microwave generator and stirring blade 145. The microwave generator is used to emit microwaves. Magnetron 142 is connected to the microwave generator. Waveguide 141 connects magnetron 142 and stirring chamber 13a. Stirring blade 145 is located in stirring chamber 13a. Motor 143 is connected to stirring blade 145 through rotating shaft. After the microwave generator emits microwaves, they are sent into stirring chamber 13a through magnetron 142 and waveguide 141. Motor 143 works and drives stirring blade 145 to rotate through rotating shaft to stir the microwaves in stirring chamber 13a so that the microwaves are evenly emitted into cooking tank 1a, so that the food can be evenly heated. Inverter 144 can adjust the frequency and power of microwave generator, and thus control the heating effect of microwave oven 100.

[0035] It should be noted that "top" refers to the direction facing the ceiling, which is the opposite of "bottom". The top and bottom directions, front and back directions, and left and right directions are perpendicular to each other, forming a three-dimensional vertical coordinate system.

[0036] It should be noted that, Figure 1 In this context, R1 can be the top / bottom direction, R2 can be the front / back direction, and R3 can be the left / right direction.

[0037] As an example, in one embodiment, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 5 The outer shell 12 is provided with buckles 12c on both sides along the left and right directions, and the top cover 21 is provided with connecting ears 21a along the left and right directions. The connecting ears 21a have sockets that penetrate through the two sides in the top and bottom directions. In this way, no matter which end face of the top cover 21 is covered with the opening in the top and bottom directions, the buckles 12c can be inserted into the sockets to improve the connection strength between the top cover 21 and the microwave component 14 and reduce the shaking of the top cover 21 and the microwave component 14 during cooking.

[0038] In one embodiment, please refer to Figures 1 to 6 The top cover 21 protrudes upward or is recessed downward to form a receiving groove 21b and a slot 21c communicating with the receiving groove 21b. The top cover 21 is disposed on the side away from the slot 21c along the top-bottom direction or on the side of the top cover 21 with the slot 21c.

[0039] For example, a portion of the top cover 21 can protrude upwards to form a receiving groove 21b and a slot 21c, with the slot 21c facing downwards. When cooking larger or more numerous ingredients, the periphery of the side of the top cover 21 with the slot 21c can be brought into contact with the periphery of the opening to cover it. In this way, the volume of the cooking cavity can be increased to the space defined between the cooking groove 1a and the receiving groove 21b, allowing for efficient microwave heating of larger or more numerous ingredients. When microwaving smaller or smaller ingredients, the side of the top cover 21 away from the slot 21c along the top-bottom direction can be brought into contact with the periphery of the opening to cover it, thereby relatively reducing the volume of the cooking cavity. This facilitates microwave concentration, reduces the heating time of the ingredients, shortens the user's waiting time, and improves the user experience.

[0040] In one embodiment, please refer to Figures 1 to 7 The microwave oven 100 includes a microwave absorbing layer 3. The bottom surface of the receiving slot 21b is the grilling surface 21b1. The microwave absorbing layer 3 is provided on the side of the top cover 21 away from the slot opening 21c along the top-bottom direction. When the top cover 21 is closed on the side away from the slot opening 21c along the top-bottom direction, the microwave absorbing layer 3 absorbs microwaves from the cooking cavity to heat the grilling surface 21b1.

[0041] Here, when it is necessary to grill or fry the food, the top cover 21 can be placed on the side away from the slot 21c along the top-bottom direction. In this way, the microwave absorbing layer 3 can absorb the microwaves in the cooking cavity and convert them into heat energy to heat the grilling surface 21b1, thus realizing the grilling or frying function. The circumferential wall of the receiving slot 21b can shield the grilling surface 21b1 to reduce the splattering of food or oil. As for the food in the cooking cavity, since some microwaves are absorbed by the microwave absorbing layer 3 and converted into heat energy, the top wall of the cooking cavity can keep the food warm from the top to ensure even heating. The food ingredients are cooked well. In other words, when the top cover 21 is placed on the side away from the slot 21c along the top and bottom direction, not only can some of the food be microwaved, but other food can also be fried or grilled at the same time. This is highly flexible. Moreover, when frying or grilling food with microwaves, compared with the situation in related technologies where the cooking cavity of the microwave oven cannot be monitored during frying or grilling, the microwave oven 100 provided in this application can monitor the heating status of the food in real time because the side of the receiving slot 21b along the top and bottom direction is open during frying or grilling.

[0042] It should be noted that the microwave absorbing layer 3 here can be a material that can absorb microwaves and convert them into heat energy.

[0043] In one embodiment, the grilling surface 21b1 is coated with a protective coating. This protective coating not only reduces the likelihood of food sticking to the pan, but also provides corrosion and penetration resistance, resulting in better cooking performance.

[0044] In one embodiment, the protective coating is Teflon. Firstly, the Teflon coating has good adhesion, preventing food from sticking together during cooking, thus reducing oil consumption and making cooking more convenient. Secondly, Teflon has excellent high-temperature resistance, able to withstand high cooking temperatures and extending the protective time. Thirdly, Teflon has extremely strong chemical stability, resisting acids, alkalis, and various organic solvents, thereby improving the service life of the top cover 21. Finally, Teflon has good heat distribution, allowing food to be heated evenly on the grilling surface 21b1, reducing the risk of burning or scorching.

[0045] In one embodiment, please refer to Figure 7 The grilling surface 21b1 has downwardly protruding ribs 21b2. The number of ribs 21b2 is unlimited. For example, there are twelve ribs 21b2. The twelve ribs 21b2 are spaced apart in the left and right direction to reduce the contact area between the food and the grilling surface 21b1, and further reduce the chance of sticking to the pan.

[0046] In one embodiment, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 5The top cover assembly 2 includes a cover plate 23, which is disposed on the side of the top cover 21 away from the slot 21c along the top-bottom direction. The projection area of ​​the cover plate 23 along the top-bottom direction is located within the projection area of ​​the opening. When the top cover 21 is covered on the side away from the slot 21c along the top-bottom direction, at least a portion of the cover plate 23 is located inside the cooking tank 1a.

[0047] For example, the cover plate 23 includes a door panel 231 and a connecting plate 232. Taking the top cover 21 protruding upward as an example, the door panel 231 can be disposed on the top surface of the top cover 21. The projection area of ​​the door panel 231 along the top-bottom direction can be located in the middle area of ​​the projection area of ​​the opening. The connecting plate 232 is disposed around the outer periphery of the door panel 231. The height of the connecting plate 232 gradually decreases along the inside-outside direction from the direction close to the door panel 231 to the direction away from the door panel 231.

[0048] Here, with the top cover 21 positioned with the side away from the slot 21c along the top-bottom direction in an open state, at least a portion of the cover plate 23 can be located inside the cooking tank 1a to further reduce the volume of the cooking cavity. On the one hand, this facilitates microwave concentration, allowing for faster heating of the food in the cooking cavity and resulting in high heating efficiency. On the other hand, the microwave absorbing layer 3 is closer to the bottom of the cooking tank 1a, enabling it to absorb microwaves and generate heat energy more quickly, thus increasing the temperature of the grilling surface 21b1.

[0049] For example, in one embodiment, the door panel 231 may be made of glass.

[0050] In one embodiment, please refer to Figure 2 , Figure 3 as well as Figures 5 to 7 Two of the multiple microwave chokes 22 are a first microwave choke 22a and a second microwave choke 22b. The top cover 21 includes a cover body 211 and an annular shell 212. The annular shell 212 is circumferentially spaced around the outer peripheral wall of the cover body 211 to jointly define an annular cavity 212a. The annular cavity 212a penetrates the top surface of the annular shell 212 to form a first communication port 212b. The first microwave choke 22a is located at the first communication port 212b and is connected to the cover body 211. The annular cavity 212a penetrates the bottom surface of the annular shell 212 to form a second communication port 212c. The second microwave choke 22b is located at the second communication port 212c and is connected to the cover body 211.

[0051] For example, a portion of the cover 211 may protrude upward to form a receiving groove 21b and a slot 21c communicating with the receiving groove 21b. The annular shell 212 is circumferentially spaced around the outer peripheral wall of the cover 211 to jointly define an annular cavity 212a. The annular cavity 212a penetrates the two end faces of the annular shell 212 in the top-bottom direction to form a first communication port 212b and a second communication port 212c. A second microwave choke 22b is connected to the outer peripheral wall of the cover 211 with the slot 21c and is adjacent to the second communication port 212c. A first microwave choke 22a is connected to the outer peripheral wall of the cover 211 on the side away from the slot 21c in the top-bottom direction and is adjacent to the first communication port 212b.

[0052] Thus, when the side of the top cover 21 with the first connecting port 212b along the top-bottom direction is closed, the first choke can effectively shield the microwaves in the cooking cavity located at the first connecting port 212b, thereby reducing the probability of microwave leakage when heating food. When the side of the top cover 21 with the second connecting port 212c along the top-bottom direction is closed, the second choke can effectively shield the microwaves in the cooking cavity located at the second connecting port 212c, thereby reducing the probability of microwave leakage when frying or grilling food. Therefore, when either end face of the top cover 21 along the top-bottom direction is closed, the microwave choke 22 can prevent microwave leakage, resulting in better safety.

[0053] It should be noted that, in the above-mentioned case, the side of the top cover 21 with the second connecting port 212c along the top-bottom direction is covered by the opening, which means that the side of the top cover 21 with the slot 21c is covered by the opening; the side of the top cover 21 with the first connecting port 212b along the top-bottom direction is covered by the opening, which means that the side of the top cover 21 away from the slot 21c along the top-bottom direction is covered by the opening.

[0054] In one embodiment, please refer to Figure 2 , Figure 5 and Figure 7 The microwave choke 22 includes a ring plate 221 and choke teeth 222. The ring plate 221 is circumferentially arranged around the outer peripheral wall of the cover 211. The ring plate 221 includes a first extension plate 2211 and a second extension plate 2212. One end of the first extension plate 2211 is connected to the outer peripheral wall of the cover 211. The other end of the first extension plate 2211 extends outward in the inward and outward direction and is connected to the second extension plate 2212. The other end of the second extension plate 2212 extends away from the first extension plate 2211 in the top and bottom direction and is connected to one end of the choke teeth 222. The other end of the choke teeth 222 is curled to form a choke groove 222a, wherein the inward and outward direction is perpendicular to the top and bottom direction.

[0055] For example, one end of the first extension plate 2211 along the inside-out direction is connected to the outer peripheral wall of the cover 211, and the other end of the first extension plate 2211 extends outward along the inside-out direction and is connected to one end of the second extension plate 2212 along the top-bottom direction. The first extension plate 2211 of the first microwave choke 22a is arranged parallel to the first communication port 212b, and the first extension plate 2211 of the second microwave choke 22b is arranged parallel to the second communication port 212c. The other end of the second extension extends away from the first extension plate 2211 along the top-bottom direction and is connected to one end of the choke tooth 222. The other end of the choke tooth 222 is curled to form a choke groove 222a.

[0056] In this way, after the microwave enters from the first connection port 212b and / or the second connection port 212c, the microwave can be reflected multiple times on the surfaces of the first extension plate 2211, the second extension plate 2212 and the choke tooth 222. During the propagation of the microwave, due to the bending design of the first extension plate 2211, the second extension plate 2212 and the choke groove 222a, the path length of the microwave can be extended to accelerate the attenuation of microwave energy, so that microwaves of certain frequencies no longer meet the propagation conditions, thereby effectively suppressing or eliminating microwaves.

[0057] It should be noted that the inside and outside directions can be left and right and / or front and back.

[0058] For example, in one embodiment, taking the choke tooth 222 disposed in the left-right direction as an example, the choke tooth 222 can be arranged around the axis in the front-back direction to form a choke groove 222a. In this way, along the projection parallel to the top and bottom directions, the shape of the choke groove 222a can be a circle, triangle, trapezoid or rectangle, etc.

[0059] In one embodiment, please refer to Figure 2 , Figure 5 and Figure 7 The choke tooth 222 includes a first toothed plate 2221, a second toothed plate 2222, a third toothed plate 2223, and a fourth toothed plate 2224. One end of the first toothed plate 2221 is connected to the second extension plate 2212. The other end of the first toothed plate 2221 extends outward in the inward and outward direction and is connected to the second toothed plate 2222. The other end of the second toothed plate 2222 extends away from the first toothed plate 2221 in the top and bottom direction and is connected to one end of the third toothed plate 2223. The other end of the third toothed plate 2223 extends inward in the inward and outward direction and is connected to one end of the fourth toothed plate 2224. The other end of the toothed plates extends towards the first toothed plate 2221 in the top and bottom direction, so as to jointly define the choke groove 222a.

[0060] For example, one end of the first toothed plate 2221 along the inward and outward direction is connected to one end of the second extension plate 2212, the other end of the first toothed plate 2221 extends outward along the inward and outward direction and is connected to one end of the second toothed plate 2222 along the top and bottom direction, the other end of the second toothed plate 2222 extends away from the first toothed plate 2221 along the top and bottom direction and is connected to one end of the third toothed plate 2223 along the inward and outward direction, the other end of the third toothed plate 2223 extends inward along the inward and outward direction and is connected to one end of the fourth toothed plate 2224 along the top and bottom direction, and the other end of the fourth toothed plate 2224 extends away from the third toothed plate 2223 along the top and bottom direction, so as to jointly define a generally rectangular choke groove 222a.

[0061] Here, by extending the first toothed plate 2221 and the third toothed plate 2223 in the inward and outward directions, and extending the second toothed plate 2222 and the fourth toothed plate 2224 in the top and bottom directions, a choke groove 222a is defined together. In this way, after the microwave enters the annular cavity 212a through the first connecting port 212b or the second connecting port 212c, the path length of the microwave can be greatly extended, causing it to be continuously reflected to accelerate the dissipation of microwave energy, further improving the suppression or elimination of microwaves, reducing the occurrence of microwave leakage outside the microwave oven 100, and ensuring good safety.

[0062] As an example, in one embodiment, please refer to Figure 2 , Figure 5 and Figure 7 An inlet 222b is formed between the fourth toothed plate 2224 and the second extension plate 2212. In this way, after the microwave enters from the first connecting port 212b or the second connecting port 212c, it can enter the choke groove 222a through the inlet 222b for reflection.

[0063] In one embodiment, there are multiple choke teeth 222, which are spaced apart circumferentially on the annular plate 221. This allows for effective suppression or elimination of microwaves circumferentially, further enhancing user safety.

[0064] In one embodiment, please refer to Figures 1 to 6 The top cover assembly 2 includes a sealing ring 24 disposed in the first communication port 212b to seal the first communication port 212b.

[0065] For example, the sealing ring 24 can wrap around the top surface of the first extension plate 2211 of the first microwave choke 22a and the side surfaces of the second extension plate 2212 in the inward and outward directions to block the inlet 222b of the choke groove 222a of the first microwave choke 22a. The sealing ring 24, projected along the parallel top-bottom direction, is roughly inverted "concave" in shape to seal the first connecting port 212b. This reduces the risk of water and dust entering the annular cavity 212a through the first connecting port 212b and corroding the first microwave choke 22a, second microwave choke 22b, cover 211, and annular shell 212, thus extending their service life and reducing safety hazards. Furthermore, with the sealing ring 24 covering the first connecting port 212b, it makes it difficult to observe the structure within the annular cavity 212a from top to bottom, resulting in a more aesthetically pleasing appearance.

[0066] In one embodiment, please refer to Figures 1 to 6 The top cover assembly 2 includes a door seal 25, which is disposed between the second microwave choke 22b and the annular shell 212 to block the second communication port 212c.

[0067] For example, one end of the door body along the inward and outward directions can be connected to the inner wall of the annular shell 212, and the other end of the door body extends inward along the inward and outward directions and abuts against the second extension plate 2212 of the second microwave choke 22b to block the inlet 222b of the choke groove 222a of the second microwave choke 22b. On the one hand, when the top cover 21 has the first communication port 212b along the top and bottom directions and is covered in an open state, the door seal 25 and the second microwave choke 22b can block the second communication port 212c to reduce water stains and Dust and other particles enter the annular cavity 212a through the second connecting port 212c, corroding the first microwave choke 22a, the second microwave choke 22b, the cover 211, and the annular shell 212, thereby increasing their service life, reducing the occurrence of safety hazards, and ensuring good safety. On the other hand, when the top cover 21 is in an open state with the first connecting port 212b on one side along the top-bottom direction, the door seal 25 shields the second connecting port 212c by working with the second choke. In this way, it is difficult to observe the structure in the annular cavity 212a from top to bottom, resulting in an aesthetically pleasing appearance.

[0068] In one exemplary embodiment, the seal and door seal 25 may be made of materials such as plastic or rubber to better seal the annular cavity 212a.

[0069] In one embodiment, the second microwave choke 22b is integrally formed with the cover 211, and the first microwave choke 22a is welded to the cover 211.

[0070] For example, the second microwave choke 22b is integrally formed with the cover 211, which reduces the appearance of gaps, making it easier for users to clean the cooking cavity and also improving the connection strength between the second microwave choke 22b and the cover 211, thus improving operational stability. The first microwave choke 22a can be welded after the microwave absorbing layer 3 is installed.

[0071] In one embodiment, the cover 211 and the microwave choke 22 can be made of aluminum. On the one hand, aluminum (solid) has a thermal conductivity of 237 W / mK, which makes the heat transfer rate high and the temperature rise fast when frying or grilling food. On the other hand, the aluminum microwave choke 22 can effectively absorb and reflect microwaves, reducing the possibility of microwave leakage.

[0072] In one embodiment, please refer to Figure 3 and Figure 6 With either of the two end faces of the top cover 21 in the top-bottom direction covered in an open state, the distance between the bottom surface of the microwave choke 22 near the opening and the top surface of the periphery of the opening is between 0.3 mm and 3 mm.

[0073] For example, the distance between the bottom surface of the microwave choke 22 near the opening along the top-bottom direction and the top surface of the periphery of the opening can be represented by H1. H1 can be 0.3mm, 0.5mm, 0.8mm, 1mm, 1.2mm, 1.5mm, 1.8mm, 2mm, 2.2mm, 2.5mm, 2.8mm or 3mm, etc. In this way, by setting an appropriate distance, not only can the microwave enter the annular cavity 212a through the gap between the bottom surface of the microwave choke 22 and the top surface of the periphery of the opening, but also the arcing between the bottom surface of the microwave choke 22 and the top surface of the periphery of the opening can be reduced, resulting in good safety.

[0074] The above description is merely a preferred embodiment of this application and is not intended to limit the application. Various modifications and variations can be made to this application by those skilled in the art. All modifications, equivalent substitutions, improvements, etc., within the spirit and principles of this application are included within the scope of protection of this application.

Claims

1. A microwave oven, characterized in that, include: The microwave body forms a cooking basin with an opening at the top; The top cover assembly includes a top cover and microwave chokes. Either of the two end faces of the top cover along the top-bottom direction is disposed on the opening to jointly define the cooking cavity. The number of microwave chokes is multiple, and the multiple microwave chokes are spaced apart on the top cover along the top-bottom direction.

2. The microwave oven according to claim 1, characterized in that, The top cover is partially protruding upward or recessed downward to form a receiving groove and a slot communicating with the receiving groove. The top cover is positioned on the side of the top cover away from the slot along the top-bottom direction or on the side of the top cover having the slot.

3. The microwave oven according to claim 2, characterized in that, The microwave oven includes a microwave absorbing layer. The bottom surface of the receiving slot is a grilling surface. The microwave absorbing layer is provided on the side of the top cover away from the slot opening along the top-bottom direction. When the top cover is covered on the side away from the slot opening along the top-bottom direction, the microwave absorbing layer absorbs microwaves from the cooking cavity to heat the grilling surface.

4. The microwave oven according to claim 2, characterized in that, The top cover assembly includes a cover plate disposed on the side of the top cover away from the slot along the top-bottom direction. The projection area of ​​the cover plate along the top-bottom direction is located within the projection area of ​​the opening. When the top cover is covered on the side away from the slot along the top-bottom direction, at least a portion of the cover plate is located inside the cooking tank.

5. The microwave oven according to claim 1, characterized in that, Two of the plurality of microwave chokes are designated as a first microwave choke and a second microwave choke. The top cover includes a cover body and an annular shell. The annular shell is circumferentially spaced around the outer peripheral wall of the cover body to jointly define an annular cavity. The annular cavity penetrates the top surface of the annular shell to form a first communication port. The first microwave choke is located at the first communication port and connected to the cover body. The annular cavity penetrates the bottom surface of the annular shell to form a second communication port. The second microwave choke is located at the second communication port and connected to the cover body.

6. The microwave oven according to claim 5, characterized in that, The top cover assembly includes a sealing ring disposed at the first communication port to seal the first communication port.

7. The microwave oven according to claim 5, characterized in that, The top cover assembly includes a door seal disposed between the second microwave choke and the annular shell to block the second communication port.

8. The microwave oven according to claim 5, characterized in that, The microwave choke includes a ring plate and choke teeth. The ring plate is circumferentially arranged around the outer peripheral wall of the cover. The ring plate includes a first extension plate and a second extension plate. One end of the first extension plate is connected to the outer peripheral wall of the cover. The other end of the first extension plate extends outward in the inward and outward direction and is connected to the second extension plate. The other end of the second extension plate extends away from the first extension plate in the top and bottom direction and is connected to one end of the choke teeth. The other end of the choke teeth is curled to form a choke groove, wherein the inward and outward direction is perpendicular to the top and bottom direction.

9. The microwave oven according to claim 8, characterized in that, The choke tooth includes a first toothed plate, a second toothed plate, a third toothed plate, and a fourth toothed plate. One end of the first toothed plate is connected to the second extension plate. The other end of the first toothed plate extends outward along the inward and outward direction and is connected to the second toothed plate. The other end of the second toothed plate extends away from the first toothed plate along the top and bottom direction and is connected to one end of the third toothed plate. The other end of the third toothed plate extends inward along the inward and outward direction and is connected to one end of the fourth toothed plate. The other end of the toothed plate extends towards the first toothed plate along the top and bottom direction, so as to jointly define the choke groove.

10. The microwave oven according to claim 8, characterized in that, The number of choke teeth is multiple, and the multiple choke teeth are arranged circumferentially on the ring plate.

11. The microwave oven according to claim 1, characterized in that, With either of the two end faces of the top cover covering the opening, the distance between the bottom surface of the microwave choke near the opening and the top surface of the periphery of the opening is between 0.3 mm and 3 mm.

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