Cooking utensil

Abstract

The utility model provides a cooking utensil. The cooking utensil comprises a cooking cavity; the first electric baking heating device is located in the cooking cavity and installed at the bottom of the cooking cavity; the microwave generating device is located outside the cooking cavity and used for emitting microwaves into the cooking cavity; the partition plate has a mounting state and a dismounting state, and in the mounting state, the partition plate is mounted in the cooking cavity and located on the side, away from the bottom wall of the cooking cavity, of the first electric baking heating device in the height direction of the cooking cavity. According to the structure, shielding between the first electric baking heating device and the food materials can be reduced by detaching the partition plate, the electric baking efficiency of the first electric baking heating device on the food materials is improved, the electric baking time is shortened, and the heating uniformity of the food materials is improved.

Description

Technical Field

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

[0002] In related solutions, microwave grills typically have a plate at the bottom of the cooking cavity to hold the food during microwave heating. A heating element is located at the bottom of the plate to electrically heat the food. However, the heating efficiency of the bottom heating element is less than ideal due to the obstruction caused by the plate.

[0003] Therefore, improving the heating effect of the heating element at the bottom of a microwave grill has become an urgent problem to be solved. Utility Model Content

[0004] This application aims to at least solve the technical problem that the heating effect of the heating element at the bottom of the microwave grill is not ideal in the prior art or related art.

[0005] Therefore, the purpose of this application is to provide a cooking utensil.

[0006] An embodiment of this application provides a cooking appliance, including: a cooking cavity; a first electric heating device located inside the cooking cavity and installed at the bottom of the cooking cavity; a microwave generator located outside the cooking cavity for emitting microwaves into the cooking cavity; and a partition having an installed state and a disassembled state. In the installed state, the partition is installed inside the cooking cavity and is located along the height direction of the cooking cavity on the side of the first electric heating device away from the bottom wall of the cooking cavity.

[0007] The cooking appliance provided by this utility model can specifically be a microwave oven, etc. The cooking appliance includes a cooking cavity, a first electric heating device, a microwave generating device, and a detachable partition. The cooking cavity is used to hold food. The microwave generating device generates and emits microwaves into the cooking cavity to achieve microwave heating. The partition is used to separate the cooking cavity and to support the food when microwave heating is required. Therefore, when microwave heating of food is required, the partition can be installed into the cooking cavity, so that the partition is in the installed state. When microwave heating is not required but electric grilling of food is required, the partition can be removed (at this time, the partition is in the detached state) so that the first electric heating device can electric grill the food in the cooking cavity. During electric grilling, the food can be mounted in the cooking cavity using a food rack such as a grilling rack.

[0008] This structure, when the food is being grilled by the first electric grilling device, eliminates the need for a partition. This reduces obstruction between the first electric grilling device and the food, improving the grilling efficiency of the first electric grilling device, shortening the grilling time, and increasing the uniformity of food heating. This solves the problems of low heating efficiency and uneven heating in microwave ovens and other products with integrated grilling functions, which exist in related solutions.

[0009] Optionally, in any of the above technical solutions, when the partition is in the disassembled state, the first electric heating device is exposed inside the cooking cavity.

[0010] In this embodiment, the first electric heating device is directly installed below the partition, meaning there are no other obstructions between the first electric heating device and the partition along the height direction. This allows the first electric heating device to be directly exposed within the cooking cavity after the partition is removed, enabling the heat emitted by the first electric heating device to directly act on the food, thereby improving the heating effect. When the first electric heating device is a heat radiation device, the heat radiated by the heat radiation device can directly act on the food, meaning the heat radiation device can directly radiate heat to the food, and there are no other obstructions between the food and the heat radiation device.

[0011] Optionally, in any of the above technical solutions, the cooking appliance further includes: a food support rack, which is detachably installed in the cooking cavity. When the food support rack is installed in the cooking cavity and the partition is in a detached state, the first electric heating device can electric-roast the food on the food support rack.

[0012] In these technical solutions, the food support rack is used to support the food. The food can be placed in the cooking cavity through the food support rack to facilitate electric heating of the food, thereby realizing the baking or grilling of the food.

[0013] The food support rack and partition can be installed simultaneously inside the cooking cavity for convenient storage of the entire product. Alternatively, either the food support rack or the partition can be installed separately inside the cooking cavity.

[0014] In any of the above technical solutions, optionally, the cooking appliance includes a microwave heating mode; the cooking appliance also includes a bottom electric grill mode and / or a heating mode combining microwave and bottom electric grill.

[0015] In these technical solutions, the cooking appliance includes a mode for standalone microwave heating. Simultaneously, the cooking appliance also includes a bottom electric grill mode, that is, a mode where the first electric grill heating device heats alone, or a mode where the first electric grill heating device and the microwave generator combine for heating. When a second electric grill heating device is also provided at the top of the cooking cavity, the first electric grill heating device can also be combined with the second electric grill heating device to form a bottom and top combined electric grill mode.

[0016] Optionally, in any of the above technical solutions, the cooking appliance further includes a microwave feed inlet, which is located at the top and / or the side of the cooking cavity, through which microwaves emitted by the microwave generator can enter the cooking cavity.

[0017] In these technical solutions, the number of microwave feed inlets can be one or more. The microwave feed inlets can be located at the top of the cooking cavity or on the side of the cooking cavity. When there are multiple microwave feed inlets, they can also be partially located at the top of the cooking cavity and partially located on the side wall of the cooking cavity. However, placing the microwave feed inlets at the top of the cooking cavity allows for more even heating of the food during microwave heating. Therefore, in the design, it is optimal to place the microwave feed inlets at the top of the cooking cavity, or partially at the top and partially on the side wall of the cooking cavity.

[0018] Optionally, in any of the above technical solutions, the microwave feed inlet is located at the top of the cooking cavity and close to the side wall of the cooking cavity.

[0019] In these technical solutions, the microwave inlet is located at the top, placing the food further away from the inlet, thus ensuring more uniform microwave heating. Furthermore, the microwave inlet is positioned at the top of the side wall of the cooking cavity, facilitating the placement of the microwave generator on the side of the product and optimizing its internal structural layout. Additionally, placing the microwave inlet at the top of the side wall of the cooking cavity allows for the provision of space at the top of the cavity, facilitating the installation of a top heating device for top heating of the product.

[0020] Optionally, in any of the above technical solutions, the cooking appliance further includes: a housing, wherein the cooking cavity is installed inside the housing; a microwave generating device including a magnetron, a waveguide assembly, and a microwave stirrer, wherein the waveguide assembly is located between the outer wall of the cooking cavity and the housing, the magnetron is located between the outer wall of the cooking cavity and the housing, and along the height direction of the cooking cavity, located on the side of the waveguide assembly near the inner bottom wall of the housing, the magnetron and the waveguide assembly are connected, and the outlet of the waveguide assembly is connected to the microwave feed inlet; the magnetron is used to generate microwaves, and the microwaves emitted by the magnetron can be conducted by the waveguide assembly and enter the cooking cavity through the microwave feed inlet; the microwave stirrer is located inside the cooking cavity and is used to stir the microwaves entering the cooking cavity.

[0021] In these technical solutions, the enclosure serves as the outer shell of the entire product, used to house the microwave generator, etc. The microwave generator includes a magnetron, a waveguide assembly, and a microwave stirrer. The magnetron generates microwaves, and the microwaves emitted by the magnetron are conducted by the waveguide assembly and enter the cooking cavity through the microwave feed inlet. The microwave stirrer is located inside the cooking cavity and is used to stir the microwaves entering the cooking cavity.

[0022] In existing microwave ovens, the microwave feed inlet is typically located at the bottom or side of the cavity, resulting in food being far from the feed inlet and thus uneven microwave radiation, leading to uneven heating of the food. Therefore, in this application, the magnetron and waveguide assembly are positioned between the oven body and the cooking cavity, with the magnetron positioned lower and the waveguide assembly positioned higher, allowing for a higher microwave feed inlet. A higher microwave feed inlet further increases the distance between the food and the feed inlet, resulting in more even microwave heating.

[0023] In any of the above technical solutions, the microwave stirrer optionally includes at least one of surface wave metal fins, a microwave stirring antenna, and a microwave stirring plate.

[0024] In these technical solutions, the structure of the microwave stirrer can be configured as needed. To facilitate procurement, common surface wave metal fins, microwave stirring antennas, and microwave stirring plates can be used to improve the convenience of product parts procurement and reduce the processing difficulty of the product.

[0025] Optionally, in any of the above technical solutions, the first electric heating device includes a first heating element.

[0026] In these technical solutions, the first electric heating device includes a first heating element, which is capable of generating heat when energized, thereby heating the food.

[0027] Optionally, in any of the above technical solutions, the first electric heating device includes a first metal heating element, which is exposed inside the cooking cavity when the partition is in the disassembled state.

[0028] In these technical solutions, the first electric grill heating device includes a first metal heating element, specifically comprising a heating wire and a metal casing. The metal casing protects the heating wire. Simultaneously, the metal casing has high strength, eliminating the need for an additional protective cover. This allows the first metal heating element to directly heat the food, ensuring no obstruction between the food and the heating element during heating. This improves the heating efficiency and speed of the first electric grill heating device, providing a guarantee for achieving electric grilling heating independently using the first electric grill heating device.

[0029] In any of the above technical solutions, optionally, the first heating element includes a first heating tube, which includes at least one of a quartz tube, a graphene tube, a halogen tube, and a metal tube.

[0030] In these technical solutions, the first heating element can be tubular, or it can be disc-shaped. When the first heating element is tubular, it can be a common quartz tube, graphene tube, halogen tube, or metal tube, etc.

[0031] Optionally, in any of the above technical solutions, when the first heating element includes at least one of a quartz tube, a graphene tube, and a halogen tube, the first heating element further includes a heat-conducting bracket disposed on the side of the first heating element away from the bottom of the cooking cavity along the height direction of the cooking cavity.

[0032] In these technical solutions, when the first heating element is a structure with low strength, such as a quartz tube, graphene tube, or halogen tube, a heat-conducting bracket can be installed on the upper side of the quartz tube, graphene tube, or halogen tube to protect it. Simultaneously, the heat-conducting bracket can also conduct heat, thereby reducing its obstruction of heat and ensuring the heating efficiency of the first heating element on the food.

[0033] Optionally, in any of the above technical solutions, the cooking appliance may further include: a second electric heating device, located inside the cooking cavity and installed on top of the cooking cavity.

[0034] In these technical solutions, the second electric heating device can heat the food from above. The second electric heating device can operate independently to achieve a top-heating mode. Alternatively, the second electric heating device can be combined with the first electric heating device to achieve a combined top and bottom heating mode.

[0035] Furthermore, since this application improves the heating efficiency and heating speed of the first electric baking heating device, it can meet the user's conventional electric baking heating needs. Therefore, in other solutions, it is also possible to omit the second electric baking heating device and achieve electric baking heating solely through the first electric baking heating device.

[0036] Optionally, in any of the above technical solutions, the second electric heating device includes a second metal heating element, which is exposed inside the cooking cavity.

[0037] In these technical solutions, the second metal heating element has a certain strength, so after the second metal heating element is installed on the top of the cooking cavity, there is no need to set up an additional protective cover, allowing the second metal heating element to be directly exposed. This can improve the heating effect and heating speed of the cooking cavity through the top heating mode.

[0038] Optionally, in any of the above technical solutions, the cooking appliance further includes a heat insulation element disposed between the second electric heating device and the top of the cooking cavity.

[0039] In these technical solutions, by setting up heat insulation components, heat loss within the cooking cavity can be reduced, thereby improving heat utilization and lowering the temperature of the outer casing of the cooking cavity, resulting in a significant reduction in the temperature rise of the casing during product operation, especially during electric baking.

[0040] Specifically, the heat insulation component can be a mica sheet.

[0041] Optionally, in any of the above technical solutions, the partition cannot rotate within the cooking cavity when installed. In this case, microwave stirring can be assisted by a microwave stirring structure. For example, the cooking appliance can be a turntable microwave oven or a flatbed microwave oven.

[0042] Optionally, the cooking appliance is a flatbed microwave oven.

[0043] Additional aspects and advantages of this application will become apparent in the following description or may be learned by practice of this application. Attached Figure Description

[0044] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0045] Figure 1 An exploded structural diagram of a portion of the structure of a cooking appliance according to an embodiment of this application is shown;

[0046] Figure 2 A three-dimensional structural schematic diagram of a cooking appliance according to an embodiment of this application is shown;

[0047] Figure 3 A front view structural schematic diagram of a cooking appliance according to an embodiment of this application is shown;

[0048] Figure 4A top view of a cooking appliance according to an embodiment of this application is shown.

[0049] Figure 5 A bottom view of the structure of a cooking appliance according to an embodiment of this application is shown;

[0050] Figure 6 This invention provides a perspective view of a cooking appliance according to an embodiment of the present application with its door removed.

[0051] Figure 7 This invention provides a schematic diagram of the front view of a cooking appliance according to an embodiment of the present application with its door removed.

[0052] Figure 8 This invention provides a top view of the structure of a cooking appliance according to an embodiment of the present application with its door removed.

[0053] Figure 9 This invention provides a schematic diagram of the cooking appliance according to an embodiment of the present application with the door removed, viewed from below.

[0054] Figure 10 One of the structural schematic diagrams of a cooking appliance according to an embodiment of this application is shown when the door is removed and the appliance is in an electric heating state.

[0055] Figure 11 The second schematic diagram shows the structure of a cooking appliance according to an embodiment of this application when the door is removed and it is in an electric heating state;

[0056] Figure 12 One of the structural schematic diagrams of a cooking appliance according to an embodiment of this application is shown when the door is removed and the appliance is in a microwave heating state.

[0057] Figure 13 The second schematic diagram shows the structure of a cooking appliance according to an embodiment of this application when the door is removed and it is in microwave heating mode;

[0058] Figure 14 A schematic diagram of the structure of a cooking appliance according to one embodiment of this application is shown.

[0059] Figure label:

[0060] 100 Cooking appliance, 1 Cooking cavity, 2 First electric heating device, 22 First heating element, 222 First metal heating element, 3 Microwave generator, 32 Magnetron, 34 Waveguide assembly, 4 Partition, 5 Food support rack, 6 Microwave feed inlet, 7 Cabinet, 8 Second electric heating device, 82 Second metal heating element, 9 Heat insulation, 92 Mica sheet. Detailed Implementation

[0061] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0062] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0063] The following is combined Figures 1 to 14 To describe the cooking utensil 100 in this application.

[0064] like Figures 1 to 14 As shown, an embodiment of this application provides a cooking appliance 100, including: a cooking cavity 1, a first electric heating device 2, a microwave generating device 3, and a partition 4. The first electric heating device 2 is located inside the cooking cavity 1 and is installed at the bottom of the cooking cavity 1. The microwave generating device 3 is located outside the cooking cavity 1 and is used to emit microwaves into the cooking cavity 1. The partition 4 is detachably installed inside the cooking cavity 1 and has an installed state and a detached state. In the installed state, the partition 4 is installed inside the cooking cavity 1 and extends along the height direction of the cooking cavity 1 (e.g., ...). Figures 2 to 4 (as shown in the direction), located on the side of the bottom wall of the first electric heating device 2 away from the cooking cavity 1.

[0065] The cooking appliance 100 provided by this utility model can specifically be a microwave oven, etc. The cooking appliance 100 includes a cooking cavity 1, a first electric heating device 2, a microwave generating device 3, and a detachable partition 4. The cooking cavity 1 is used to hold food. The microwave generating device 3 is used to emit and direct microwaves into the cooking cavity 1 to achieve microwave heating. The partition 4 is used to divide the cooking cavity 1 and to hold food when microwave heating is required. Therefore, when microwave heating of food is required, the partition 4 can be installed inside the cooking cavity 1, so that the partition 4 is in the installed state (e.g., Figure 6 , Figure 7 , Figure 10 and Figure 11 (As shown). When microwave heating is not required but electric grilling is needed, the partition 4 can be removed (the partition 4 is in the removed state) so that the first electric grilling heating device 2 can grill the food in the cooking cavity 1. During electric grilling, the food can be mounted inside the cooking cavity 1 using a grill rack or similar food rack.

[0066] The overall structure of the cooking appliance 100 is as follows: Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the overall structure of the cooking appliance 100, with the door removed and the partition 4 and food support rack 5 installed, is as follows: Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown.

[0067] With this structure, when food is being grilled by the first electric grilling device 2, the partition 4 can be eliminated, which reduces the obstruction between the first electric grilling device 2 and the food, improves the grilling efficiency of the first electric grilling device 2, shortens the grilling time, and improves the uniformity of food heating. This can solve the problems of low heating efficiency and uneven heating in microwave ovens and other products with integrated grilling and microwaving functions in related solutions.

[0068] Furthermore, when the partition 4 is in the disassembled state, the first electric heating device 2 is exposed inside the cooking cavity 1.

[0069] In this embodiment, the first electric heating device 2 is directly installed below the partition 4, that is, there are no other obstructions between the first electric heating device 2 and the partition 4 along the height direction. This allows the first electric heating device 2 to be directly exposed in the cooking cavity after the partition 4 is removed. In this way, the heat emitted by the first electric heating device 2 can be directly applied to the food, thereby improving the heating effect of the first electric heating device 2 on the food.

[0070] In the case where the first electric heating device 2 is a heat radiation device, the heat radiated by the heat radiation device can directly act on the food, that is, the heat radiation device can directly radiate heat to the food, and there are no other obstructions between the food and the heat radiation device. In any of the above embodiments, optionally, as... Figure 6 As shown, the cooking appliance 100 also includes a food support rack 5, which can be detachably installed in the cooking cavity 1. When the food support rack 5 is installed in the cooking cavity 1 and the partition 4 is in the detached state, the first electric heating device 2 can electric bake the food on the food support rack 5.

[0071] In these embodiments, the food support rack 5 is used to support the food. The food can be placed in the cooking cavity 1 through the food support rack 5 to facilitate electric heating of the food, thereby realizing the baking or roasting of the food.

[0072] The food support rack 5 and the partition 4 can be installed simultaneously inside the cooking cavity 1 for convenient storage of the entire product. Of course, either the food support rack 5 or the partition 4 can be installed inside the cooking cavity 1.

[0073] The structure of the cooking utensil after removing the partition 4 and installing the food support rack 5 is as follows: Figure 12 and Figure 13As shown.

[0074] The structure of cooking utensil 100 with partition 4 and without food support rack 5 is as follows: Figure 10 and Figure 11 As shown.

[0075] In any of the above embodiments, optionally, the cooking appliance 100 includes a microwave heating mode; the cooking appliance 100 also includes a bottom electric grill mode and / or a heating mode combining microwave and bottom electric grill.

[0076] In these embodiments, the cooking appliance 100 includes a mode for microwave heating alone. Simultaneously, the cooking appliance 100 also includes a bottom electric grill mode, that is, a mode where the first electric grill heating device 2 heats alone, or a mode where the first electric grill heating device and the microwave generator 3 combine for heating. When a second electric grill heating device 8 is also provided at the top of the cooking cavity 1, the first electric grill heating device can also be combined with the second electric grill heating device 8 to form a bottom and top combined electric grill mode.

[0077] In any of the above embodiments, optionally, as Figure 1 and Figure 14 As shown, the cooking appliance 100 also includes a microwave feed inlet 6, which is located at the top and / or side of the cooking cavity 1, through which microwaves emitted by the microwave generator 3 can enter the cooking cavity 1.

[0078] In these embodiments, the number of microwave feed inlets 6 can be one or more. The microwave feed inlets 6 can be located at the top of the cooking cavity 1 or at the side of the cooking cavity 1. When there are multiple microwave feed inlets 6, they can also be partially located at the top of the cooking cavity 1 and partially located on the side wall of the cooking cavity 1. However, placing the microwave feed inlets 6 at the top of the cooking cavity 1 allows for more uniform heating of the food during microwave heating. Therefore, in the design, it is optimal to place the microwave feed inlets 6 at the top of the cooking cavity 1, or partially at the top of the cooking cavity 1 and partially on the side wall of the cooking cavity 1.

[0079] In any of the above embodiments, optionally, as Figure 1 As shown, the microwave feed inlet 6 is located at the top of the cooking cavity 1 and close to the side wall of the cooking cavity 1.

[0080] In these embodiments, the microwave feed inlet 6 is located at the top, so that the food is further away from the microwave feed inlet 6, thus enabling more uniform microwave heating. Furthermore, the microwave feed inlet 6 is located at the top of the side wall of the cooking cavity 1, which facilitates the placement of the microwave generator 3 on the side of the product, thereby optimizing the internal structural layout of the product. In addition, placing the microwave feed inlet 6 at the top of the side wall of the cooking cavity 1 also leaves space at the top of the cooking cavity 1, facilitating the installation of a top heating device to achieve top heating of the product.

[0081] In any of the above embodiments, optionally, as Figure 14 As shown, the cooking appliance 100 also includes: a housing 7, with the cooking cavity 1 installed inside the housing 7; a microwave generating device 3 including a magnetron 32, a waveguide assembly 34, and a microwave stirrer, the waveguide assembly 34 being located between the outer wall of the cooking cavity 1 and the housing 7, the magnetron 32 being located between the outer wall of the cooking cavity 1 and the housing 7, and along the height direction of the cooking cavity 1, located on the side of the waveguide assembly 34 near the inner bottom wall of the housing 7, the magnetron 32 and the waveguide assembly 34 being connected, and the outlet of the waveguide assembly 34 being connected to the microwave feed inlet 6; the magnetron 32 is used to emit microwaves, and the microwaves emitted by the magnetron 32 can be conducted by the waveguide assembly 34 and enter the cooking cavity 1 through the microwave feed inlet 6; the microwave stirrer is located inside the cooking cavity 1 and is used to stir the microwaves entering the cooking cavity 1.

[0082] In these embodiments, the housing 7 serves as the outer shell of the entire product and is used to install the microwave generator 3, etc. The microwave generator 3 includes a magnetron 32, a waveguide assembly 34, and a microwave stirrer. The magnetron 32 is used to emit microwaves, and the microwaves emitted by the magnetron 32 can be conducted by the waveguide assembly 34 and enter the cooking cavity 1 through the microwave feed port 6. The microwave stirrer is located inside the cooking cavity 1 and is used to stir the microwaves entering the cooking cavity 1.

[0083] In related microwave ovens, the microwave feed inlet 6 is typically located at the bottom or side of the cavity, resulting in food being far from the inlet and causing uneven microwave radiation, leading to uneven heating of the food. Therefore, in this application, the magnetron 32 and waveguide assembly 34 are positioned between the housing 7 and the cooking cavity 1, with the magnetron 32 positioned lower and the waveguide assembly 34 positioned higher, facilitating a higher placement of the microwave feed inlet 6. A higher placement of the microwave feed inlet 6 further increases the distance between the food and the inlet, resulting in more uniform microwave heating.

[0084] In any of the above embodiments, the microwave stirrer optionally includes at least one of surface wave metal fins, a microwave stirring antenna, and a microwave stirring plate.

[0085] In these embodiments, the structure of the microwave stirrer can be configured as needed. For ease of procurement, common surface wave metal fins, microwave stirring antennas, and microwave stirring plates can be used to improve the convenience of product parts procurement and reduce the processing difficulty of the product.

[0086] In any of the above embodiments, optionally, as Figure 1 As shown, the first electric heating device 2 includes a first heating element 22.

[0087] In these embodiments, the first electric heating device 2 includes a first heating element 22, which is capable of generating heat when energized, thereby heating the food.

[0088] In any of the above embodiments, optionally, as Figure 1 As shown, the first electric heating device 2 includes a first metal heating element 222. When the partition 4 is in the disassembled state, the first metal heating element 222 is exposed inside the cooking cavity 1.

[0089] In these embodiments, the first electric grill heating device 2 includes a first metal heating element 222, which specifically includes a heating wire and a metal casing. The metal casing protects the heating wire. Simultaneously, the metal casing has high strength, eliminating the need for an additional protective cover. This allows the first metal heating element 222 to directly heat the food, ensuring no obstruction between the food and the heating element. This improves the heating efficiency and speed of the first electric grill heating device 2, providing a guarantee for achieving electric grilling heating independently using the first electric grill heating device 2.

[0090] In any of the above embodiments, optionally, the first heating element 22 includes a first heating tube, which includes at least one of a quartz tube, a graphene tube, a halogen tube, and a metal tube.

[0091] In these embodiments, the first heating element 22 can be configured as a tube, or it can be configured as a disc. When the first heating element 22 is tubular, it can be a common quartz tube, graphene tube, halogen tube, or metal tube, etc.

[0092] In any of the above embodiments, optionally, when the first heating element includes at least one of a quartz tube, a graphene tube, and a halogen tube, the first heating element 22 further includes a heat-conducting bracket disposed on the side of the first heating element away from the bottom of the cooking cavity 1 along the height direction of the cooking cavity 1.

[0093] In these embodiments, when the first heating element is a structure with low strength, such as a quartz tube, graphene tube, or halogen tube, a heat-conducting bracket can be provided on the upper side of the quartz tube, graphene tube, or halogen tube to protect it. Simultaneously, the heat-conducting bracket can also conduct heat, thereby reducing its obstruction of heat and ensuring the heating efficiency of the first heating element on the food.

[0094] In any of the above embodiments, optionally, as Figure 14 As shown, the cooking appliance 100 also includes a second electric heating device 8, located inside the cooking cavity 1 and installed on the top of the cooking cavity 1.

[0095] In these embodiments, the second electric heating device 8 can heat the food from above. The second electric heating device 8 can operate independently to achieve a top-heating mode. Alternatively, the second electric heating device 8 can be combined with the first electric heating device to achieve a combined top and bottom heating mode.

[0096] Furthermore, since this application improves the heating efficiency and heating speed of the first electric baking heating device, it can meet the user's conventional electric baking heating needs. Therefore, in other solutions, the second electric baking heating device 8 may not be provided, and electric baking heating can be achieved solely through the first electric baking heating device.

[0097] In any of the above embodiments, optionally, as Figure 14 As shown, the second electric heating device 8 includes a second metal heating element 82, which is exposed inside the cooking cavity 1.

[0098] In these embodiments, the second metal heating element 82 has a certain strength, so that after the second metal heating element 82 is installed on the top of the cooking cavity 1, there is no need to set an additional protective cover, so that the second metal heating element 82 can be directly exposed, thereby improving the effect and heating speed of electric baking in the cooking cavity 1 through the top heating mode.

[0099] In any of the above embodiments, optionally, as Figure 14 As shown, the cooking appliance 100 also includes a heat insulation element 9, disposed between the top of the second electric heating device 8 and the cooking cavity 1.

[0100] In these embodiments, by providing the heat insulation element 9, heat loss within the cooking cavity 1 can be reduced, thereby improving heat utilization and lowering the temperature of the outer casing 7 of the cooking cavity 1, resulting in a significant reduction in the temperature rise of the casing 7 during product operation, especially during electric baking.

[0101] Among them, such as Figure 14 As shown, the heat insulation element 9 can specifically be a mica sheet 92.

[0102] In any of the above embodiments, optionally, the partition 4 cannot rotate within the cooking cavity 1 when installed. In this case, the partition 4 can achieve microwave stirring with the assistance of a microwave stirring structure. For example, the cooking appliance 100 can be a turntable microwave oven or a flatbed microwave oven.

[0103] The vertical direction of the cooking utensil 100 when it is normally placed on the countertop is the height direction in this application.

[0104] Figure 4 A top view of cooking utensil 100.

[0105] Optionally, the cooking appliance 100 is a flatbed microwave oven.

[0106] The cooking appliance 100 in this application will be described below in conjunction with a microwave oven.

[0107] This embodiment relates to the field of microwave oven technology, specifically to a bottom grilling solution for a top-feed microwave oven.

[0108] The microwave ovens in the relevant proposals mainly have two heating methods: flatbed and turntable.

[0109] A flatbed microwave oven, as the name suggests, heats food by placing it on a flat plate. Microwave radiation enters the cavity through a feed inlet at the bottom and is then evenly distributed to all parts of the food via a stirring antenna. Because the food is placed on a glass plate at the bottom of the cavity, it is close to the microwave feed inlet, resulting in a relatively small heating area, making it unsuitable for heating large foods. Furthermore, due to the unevenness of microwave radiation, flatbed microwave ovens suffer from significant uneven heating.

[0110] A turntable microwave oven heats food on a rotating plate. Microwave radiation enters the cavity through an inlet at the bottom or side, and then is evenly distributed across the food by the rotating glass turntable at the bottom. Because the plate rotates, the food constantly moves during heating, varying its distance from the side inlet. Therefore, compared to a flatbed microwave oven, the heating uniformity is improved.

[0111] For bottom grilling, microwave ovens in relevant solutions typically use quartz tubes or halogen tubes as heating elements, which are embedded inside the heating cover at the top of the cavity. Heating is achieved through a mesh plate at the top of the cavity to protect the glass tube, which limits the heating range. Therefore, the overall bottom grilling effect is not ideal.

[0112] In summary, the microwave ovens in the relevant solutions mainly use two heating methods: flatbed and turntable. These methods have the following drawbacks:

[0113] A. Uneven microwave heating: When food is too close to the microwave inlet, due to the microwave traction effect, the far part of the food cannot receive enough microwave energy for heating, while the near part is prone to overcooking.

[0114] B. Poor heating effect of the lower grill: The heat from the lower heating element is blocked by the heating cover, resulting in a smaller heat radiation range. Large portions of food cannot be heated evenly.

[0115] It is evident that the uniformity of microwave and bottom grill heating in the proposed solutions for both flatbed and turntable microwave ovens is not ideal.

[0116] To address this issue, this embodiment proposes a bottom-grilling scheme for a top-fed microwave oven, which can be widely applied in the microwave oven industry. This bottom-grilling scheme for a top-fed microwave oven solves the problems of uneven heating between the microwave and the bottom grilling in related solutions, as well as the high temperature rise in the top space of the microwave oven.

[0117] The top-fed microwave oven proposed in this embodiment includes a cavity assembly, a waveguide assembly 34, a stirring system, an upper heating element, a lower heating element, a magnetron 32, and a mica sheet. The waveguide assembly 34 is located on the side of the cavity, with its feed inlet at the top of the cavity side. The magnetron 32 is fixed below the waveguide assembly 34. The stirring system is fixed inside the molded top plate of the cavity. In this example, the stirring system uses surface wave metal fins to generate surface waves for heating the food. Existing stirring antennas or stirring plates can also be used as alternatives. The microwaves emitted by the magnetron 32 are radiated into the cavity through the waveguide assembly 34 from the feed inlet at the top of the cavity. The stirring system further ensures more uniform microwave radiation within the cavity, thus achieving uniform heating of the food.

[0118] The inner partition 4 is also fixed to the bottom of the cavity, shielding the lower heating element inside the cavity mold, allowing food to be placed under microwave function. Below the inner partition 4, there is a lower heating element, which can be a traditional quartz tube, halogen tube, or metal tube. This case illustrates a metal lower heating element, which is placed between the bottom mold and the inner partition 4 (if it is a lower heating element with a glass surface, such as a quartz tube, it needs to be protected with a metal bracket or similar material). This allows for a wider range of radiant heating, improving the uniformity of food grilling.

[0119] Compared with side- or bottom-feed microwave ovens in related solutions, the top-feed microwave oven with under-grilling solution in this embodiment has the following advantages:

[0120] 1. More uniform microwave heating: In related microwave ovens, the microwave inlet is generally located at the bottom of the cavity, resulting in uneven microwave heating. Side-fed microwave ovens in related solutions suffer from even heating due to the unevenness of microwave radiation. In contrast, the top-fed microwave oven in this embodiment has its microwave radiation inlet located at the top of the cavity, placing the food further away from the inlet, thus achieving more uniform microwave heating.

[0121] 2. More Even Heating in the Bottom Grill: The top of the cavity uses an exposed metal bottom heating element instead of a quartz tube, graphene tube, or halogen tube that is covered by a perforated plate. This results in faster and more even bottom grilling. Microwave ovens in related designs typically use quartz tubes, graphene tubes, or halogen tubes as heating elements. However, because the heating element is covered by a perforated plate, the bottom grilling speed is slow and the heating is uneven. In contrast, the top-fed microwave oven in this embodiment uses an exposed metal bottom heating element, resulting in faster bottom grilling and more even heating.

[0122] 3. Faster bottom heating and lower temperature rise at the top and outer casing: This is mainly due to the addition of a mica sheet as insulation between the metal lower heating element and the top plate of the cavity, resulting in higher heat utilization and a significant reduction in the temperature of the outer casing. In contrast, microwave ovens with similar designs often suffer from heat loss due to the lack of insulation between the heating element and the cavity, leading to lower heat utilization.

[0123] This embodiment can also be extended in the following ways:

[0124] 1. The top microwave stirring system can be replaced with other microwave technologies such as slot antennas. Alternatively, a multi-feed microwave scheme can be adopted, where some microwave feeds are located at the top of the cavity and others are located on the side of the cavity.

[0125] 2. The top heating element may not be installed; only the bottom heating element may be installed.

[0126] The advantages of this embodiment: Microwaves are fed from the top side of the cavity, inside the cavity, via the top of the waveguide, with an upper heating element positioned below the waveguide. The lower heating element is located at the bottom of the cavity, below the inner partition 4; a borosilicate glass is placed above the lower heating element. When microwaves are needed, the borosilicate glass is placed, and food is placed on it for heating. When grilling is needed, the borosilicate glass is removed, a grill pan is inserted, and both the upper and lower heating elements operate simultaneously, achieving better grilling capabilities in the microwave-grill combo.

[0127] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0128] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A cooking appliance characterized by, The cooking appliance comprises: a cooking cavity; a first electric oven heating device located in the cooking cavity and mounted on the bottom of the cooking cavity; a microwave generating device located outside the cooking cavity and used for emitting microwaves into the cooking cavity; a partition plate having a mounted state and a dismounted state, in the mounted state, the partition plate is mounted in the cooking cavity and located on the side of the first electric oven heating device away from the bottom wall of the cooking cavity in the height direction of the cooking cavity.

2. The cooking appliance of claim 1, wherein, When the partition plate is in the dismounted state, the first electric oven heating device is exposed in the cooking cavity.

3. The cooking appliance of claim 1, wherein, Further comprising: a food material supporting frame which is detachably mounted in the cooking cavity, when the food material supporting frame is mounted in the cooking cavity and the partition plate is in the dismounted state, the first electric oven heating device can electrically oven the food material on the food material supporting frame.

4. The cooking appliance of claim 1, wherein, Further comprising: a microwave feeding inlet provided on the top of the cooking cavity and / or the side of the cooking cavity, the microwaves emitted by the microwave generating device can enter into the cooking cavity through the microwave feeding inlet.

5. The cooking appliance of claim 4, wherein, The microwave feeding inlet is provided on the top of the cooking cavity and close to the side wall of the cooking cavity.

6. The cooking appliance of claim 4, wherein, Further comprising: a box, the cooking cavity is mounted in the box; the microwave generating device comprises a magnetron, a waveguide assembly and a microwave stirrer, the waveguide assembly is located between the outer side wall of the cooking cavity and the box, the magnetron is located between the outer wall of the cooking cavity and the box and on the side of the waveguide assembly close to the inner bottom wall of the box in the height direction of the cooking cavity, the magnetron and the waveguide assembly are in communication, the outlet of the waveguide assembly is in communication with the microwave feeding inlet; the magnetron is used for emitting microwaves, and the microwaves emitted by the magnetron can enter into the cooking cavity through the microwave feeding inlet after being conducted by the waveguide assembly; the microwave stirrer is located in the inside of the cooking cavity and used for stirring the microwaves entering into the cooking cavity.

7. The cooking appliance of claim 1, wherein, The first electric oven heating device comprises a first heating element.

8. The cooking appliance of claim 7, wherein, The first electric oven heating device comprises a first metal heating element, when the partition plate is in the dismounted state, the first metal heating element is exposed in the cooking cavity.

9. The cooking appliance of claim 7, wherein, The first heating element comprises a first heating tube, the first heating tube comprises at least one of a quartz tube, a graphene tube, a halogen tube and a metal tube.

10. The cooking appliance according to claim 9, wherein when the first heating tube comprises at least one of a quartz tube, a graphene tube and a halogen tube, the first heating element further comprises a heat-conducting support provided on the side of the first heating tube away from the bottom of the cooking cavity in the height direction of the cooking cavity.

11. The cooking appliance according to any one of claims 1 to 10, characterized in that, Further comprising: a second electric oven heating device located in the cooking cavity and mounted on the top of the cooking cavity.

12. The cooking appliance of claim 11, wherein, Further comprising: a heat insulation element provided between the second electric oven heating device and the top of the cooking cavity.

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