Cooking utensil

Abstract

The cooking utensil comprises a shell and a cavity, the cavity is formed in the shell and comprises a cavity body and a top plate, the top plate covers the top of the cavity body, and a first concave cavity which is concave upwards is defined by the top plate; the microwave generation assembly is located in the shell and located on one side of the cavity in the horizontal direction; the waveguide cover is located in the shell and arranged above the microwave generation assembly, the highest point of the waveguide cover is not higher than the top face of the top plate, and the waveguide cover is communicated with the interior of the cavity so that microwaves generated by the microwave generation assembly can be conducted into the first concave cavity. According to the cooking utensil provided by the embodiment of the invention, the volume of the cavity can be increased under the condition that the overall volume of the cooking utensil is not changed, so that the effective space of the cooking utensil is increased, the volume ratio of the cooking utensil is improved, more food can be placed in the cooking utensil, and the transportation cost and the material cost of the cooking utensil are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen appliances, and more particularly to a cooking utensil. Background Art

[0002] In daily life, cooking utensils such as microwave ovens are commonly used heating appliances, which are convenient and quick to heat food. In the related art, the volume ratio of cooking utensils is low, resulting in high transportation cost and material cost of cooking utensils and poor economy. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a cooking utensil with a high volume ratio, reduced transportation cost and material cost of the cooking utensil, and good economic performance.

[0004] The cooking device according to the embodiment of the present invention comprises: an outer shell and a cavity, wherein the cavity is arranged in the outer shell, the cavity comprises a cavity body and a top plate, the top plate cover is arranged on the top of the cavity body, and the top plate defines a first concave cavity which is recessed upward; a microwave generating assembly, wherein the microwave generating assembly is located in the outer shell and on one side of the cavity in the horizontal direction; and a waveguide cover, wherein the waveguide cover is located in the outer shell and arranged above the microwave generating assembly, the highest point of the waveguide cover is not higher than the top surface of the top plate, and the waveguide cover is connected to the cavity to conduct the microwaves generated by the microwave generating assembly into the first concave cavity.

[0005] According to the cooking utensil of the embodiment of the present invention, by arranging the waveguide cover above the microwave generating assembly and making the highest point of the waveguide cover not higher than the top surface of the top plate, the volume of the cavity can be increased while the overall volume of the cooking utensil remains unchanged, thereby increasing the effective space of the cooking utensil, improving the volumetric ratio of the cooking utensil, allowing the cooking utensil to hold more food, and reducing the transportation cost and material cost of the cooking utensil, thereby achieving better economy.

[0006] In addition, the cooking appliance according to the above embodiment of the present invention may also have the following additional technical features:

[0007] According to some embodiments of the present invention, at least a portion of the waveguide cover is located on the lower side of the top plate, and the waveguide cover cooperates with the top plate to define a channel for conducting microwaves.

[0008] According to some embodiments of the present invention, the top plate further defines a second concave cavity, which is located on one side of the first concave cavity in the horizontal direction and is connected to the first concave cavity through a mounting port, and the second concave cavity has a first lower end opening located in the cavity and a second lower end opening located outside the cavity, and the waveguide cover includes a first part, a second part and a third part, the first part covers the mounting port, the second part covers the first lower end opening, and the third part covers the second lower end opening, wherein at least one of the first part and the second part is provided with a connecting port, and the connecting port connects the waveguide cover and the cavity.

[0009] According to some embodiments of the present invention, a side wall of the first cavity is provided with a mounting opening, and the waveguide cover is located on one side of the top plate in a horizontal direction and covers the mounting opening.

[0010] According to some embodiments of the present invention, the communication port between the waveguide cover and the cavity includes a first communication port, and at least a portion of the first communication port extends obliquely upward and toward a direction close to the first concave cavity.

[0011] According to some embodiments of the present invention, the communication port between the waveguide cover and the cavity includes a second communication port, and the second communication port penetrates in a vertical direction.

[0012] According to some embodiments of the present invention, the communication port between the waveguide cover and the cavity is an integral opening, or includes a plurality of openings arranged at intervals.

[0013] According to some embodiments of the present invention, a shielding member is provided at the communication port between the waveguide cover and the cavity, and the shielding member allows microwaves to pass through.

[0014] According to some embodiments of the present invention, a heating element is provided at the lower opening of the first cavity, and the waveguide cover is located above the heating element.

[0015] According to some embodiments of the present invention, the cooking appliance further includes: a transformer and a high-voltage capacitor, wherein the transformer and the high-voltage capacitor are located inside the outer shell and below the microwave generating assembly, and the transformer and the high-voltage capacitor are arranged in a front-to-back direction; or, a frequency converter, wherein the frequency converter is located inside the outer shell and below the microwave generating assembly.

[0016] According to some embodiments of the present invention, the cooking appliance further includes: a cooling fan, wherein the cooling fan is located inside the housing and on one side of the microwave generating assembly in the front-to-rear direction, the cooling fan is located directly above the high-voltage capacitor, and the microwave generating assembly is located directly above the transformer.

[0017] According to some embodiments of the present invention, the microwave generating assembly includes a shell and a magnetron, the shell is provided with a heat dissipation channel, the magnetron is at least partially located in the heat dissipation channel, the heat dissipation channel has a first channel opening and a second channel opening arranged front to back, the cooking appliance also includes a heat dissipation fan, the heat dissipation fan is opposite to the first channel opening and is used to blow air into the first channel opening to drive the airflow in the heat dissipation channel, the cavity body is provided with an air inlet, and the second channel opening is arranged adjacent to the air inlet so that the airflow in the heat dissipation channel enters the cavity through the air inlet.

[0018] According to some embodiments of the present invention, a mounting bracket is provided at the lower end of the waveguide cover, and the microwave generating assembly is mounted on the mounting bracket.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 is an exploded view of a cooking appliance according to an embodiment of the present invention;

[0022] Figure 2 is a side view of a portion of the structure of a cooking appliance according to an embodiment of the present invention, wherein the housing is not shown;

[0023] Figure 3 is a cross-sectional view of a cooking appliance according to an embodiment of the present invention, wherein a first channel opening and a second channel opening of a heat dissipation channel are shown;

[0024] Figure 4 is a partial structural schematic diagram of a cooking appliance according to an embodiment of the present invention, wherein a housing and an oven door assembly are not shown;

[0025] Figure 5 yes Figure 4 A schematic diagram of a portion of the structure of the cooking appliance from another viewing angle;

[0026] Figure 6 is a cross-sectional view of a cooking appliance according to an embodiment of the present invention, showing a first portion, a second portion, and a third portion of a waveguide cover;

[0027] Figure 7 yes Figure 6 a cross-sectional view of the cooking utensil from another viewing angle;

[0028] Figure 8 is a schematic structural diagram of a top plate according to an embodiment of the present invention;

[0029] Fig. 9 is a schematic structural diagram of a waveguide cover according to an embodiment of the present invention;

[0030] Fig.10 is a schematic diagram of the matching structure of a top plate and a waveguide cover according to an embodiment of the present invention;

[0031] Fig.11 is a bottom view of a top plate, a waveguide cover and a mounting bracket according to an embodiment of the present invention;

[0032] Fig.12 yes Fig.11 Cross-sectional view in the direction indicated by line AA.

[0033] Reference numerals:

[0034] Cooking appliance 100;

[0035] Housing 10; transformer 11; high-voltage capacitor 12; cooling fan 13; furnace door assembly 14; control box assembly 15; interlocking assembly 16;

[0036] Cavity 20; cavity body 21; bottom plate 211; rear plate 212; front plate 213; left U-shaped plate 214; right U-shaped plate 215;

[0037] Top plate 22; first concave cavity 221; mounting opening 222; second concave cavity 223; first lower end opening 2231; second lower end opening 2232; air inlet 23; heating element 24; turntable glass 25;

[0038] Microwave generating assembly 30; housing 31; heat dissipation channel 311; first channel opening 3111; second channel opening 3112; heat sink 3113; mounting shell 312; wind guide cover 313; magnetron 32; tube core 321; magnetic circuit system 322; filter system 323; microwave energy output device 324; bulb assembly 33; temperature controller 34;

[0039] Waveguide cover 40 ; channel 401 ; first portion 41 ; first communication port 411 ; second portion 42 ; second communication port 421 ; third portion 43 ; communication port 44 ; shielding member 45 ; mounting bracket 46 . DETAILED DESCRIPTION

[0040] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0041] In the description of the present invention, it should be understood that the terms "length", "width", "height", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0042] In the description of the present invention, "first feature" and "second feature" may include one or more such features, "plurality" means two or more, a first feature "above" or "below" the second feature may include the first and second features being directly in contact, or may include the first and second features not being in direct contact but being in contact through another feature between them, and a first feature "above", "above" and "above" the second feature may include the first feature being directly above or diagonally above the second feature, or may simply mean that the first feature is horizontally higher than the second feature.

[0043] The following describes a cooking appliance 100 according to an embodiment of the present invention with reference to the accompanying drawings.

[0044] Reference Figure 1-Figure 12 As shown, the cooking appliance 100 according to the embodiment of the present invention may include: a housing 10 , a cavity 20 , a microwave generating assembly 30 and a waveguide cover 40 .

[0045] Specifically, the cavity 20 is arranged in the housing 10, and the cavity 20 includes a cavity body 21 and a top plate 22. The top plate 22 is covered on the top of the cavity body 21, and the top plate 22 defines a first concave cavity 221 that is recessed upward. The microwave generating assembly 30 is located in the housing 10 and on one side of the cavity 20 in the horizontal direction. The waveguide cover 40 is located in the housing 10 and is arranged above the microwave generating assembly 30. The highest point of the waveguide cover 40 is not higher than the top surface of the top plate 22, and the waveguide cover 40 is connected to the cavity 20 to conduct the microwaves generated by the microwave generating assembly 30 to the first concave cavity 221.

[0046] The microwaves generated by the cooking utensil 100 assembly are transmitted to the waveguide cover 40. The waveguide cover 40 may be made of metal or other materials so that the microwaves can be transmitted in the waveguide cover 40 to reduce microwave loss and leakage. The waveguide cover 40 may also be called a waveguide tube. The microwaves in the waveguide cover 40 are transmitted to the first concave cavity 221 through the position where the waveguide cover 40 is connected to the cavity 20, that is, the microwaves are transmitted to the cavity 20 to perform microwave heating on the food in the cavity 20.

[0047] like Figure 1As shown, the housing 10 of the cooking device 100 may define a space for installing the cavity 20, and the cavity 20 may be used to place food. Figure 1-Figure 3 As shown, the housing 10 of the cooking appliance 100 may further define an electrical compartment for installing other devices, and the microwave generating assembly 30 and the waveguide cover 40 may be installed in the electrical compartment.

[0048] The cavity body 21 and the top plate 22 together define a space for placing food, and the first concave cavity 221 of the top plate 22 is concave upward, which is conducive to increasing the volume of the cavity 20 so as to place more food. In addition, when the microwave output power of the microwave generating assembly 30 remains unchanged, the larger the volume of the cavity 20, the better the heating uniformity of the cooking utensil 100, so the first concave cavity 221 is also conducive to improving the heating uniformity of the cooking utensil 100.

[0049] The first concave cavity 221 is concave upward. If the microwave generating assembly 30 is located on one side of the cavity 20 in the vertical direction, the cooking utensil 100 will be too high and difficult to be stably placed. In the present application, the microwave generating assembly 30 is located on one side of the cavity 20 in the horizontal direction, which is conducive to fully utilizing the installation space of the cooking utensil 100 in the horizontal direction and improving the stability of placing the cooking utensil 100.

[0050] In some related technologies, the cavity, the waveguide cover and the microwave generating assembly are arranged in sequence along the horizontal direction, for example, the waveguide cover is installed on the right side of the cavity, and the microwave generating assembly is installed on the right side of the waveguide cover, which results in the size of the cavity outside the cooking utensil in the horizontal direction being too large, that is, the size of the electrical compartment in the horizontal direction is too large. Without changing the size of the cavity, it is necessary to increase the size of the cooking utensil in the horizontal direction to increase the size of the electrical compartment so that the waveguide cover and the microwave generating assembly can be placed in the electrical compartment, resulting in an increase in the overall volume of the cooking utensil, a decrease in the volumetric ratio of the cooking utensil, and high transportation costs and material costs of the cooking utensil. Without changing the overall volume of the cooking utensil, it is necessary to reduce the size of the cavity in the horizontal direction to increase the size of the electrical compartment so that the waveguide cover and the microwave generating assembly can be placed in the electrical compartment, resulting in a decrease in the volume of the cavity, a decrease in the effective space of the cooking utensil, less food that can be placed, and a decrease in the volumetric ratio of the cooking utensil.

[0051] It should be explained that the volume ratio of the cooking appliance 100 is calculated by dividing the calculated volume of the space in the cavity 20 by the overall volume of the cooking appliance 100, wherein the calculated volume of the space in the cavity 20 is calculated based on the surface with the largest area. Figure 4-Figure 5As shown, the surface with the largest area in the left U-shaped plate 214 of the cavity 20 is the surface where the panel protruding to the left is located, and the surface with the largest area in the right U-shaped plate 215 of the cavity 20 is the surface where the panel protruding to the right is located. The distance between the two surfaces is calculated based on these two surfaces. Similarly, the distance between the top plate 22 and the bottom plate 211 of the cavity 20 and the distance between the front plate 213 and the rear plate 212 of the cavity 20 are calculated. The three are multiplied together to obtain the calculated volume of the cavity 20.

[0052] The present application arranges the waveguide cover 40 above the microwave generating assembly 30, which can make full use of the installation space along the up and down directions outside the cavity 20 of the cooking utensil 100, that is, make full use of the installation space along the up and down directions of the electrical compartment to install the microwave generating assembly 30 and the waveguide cover 40, so that the size of the electrical compartment along the horizontal direction is smaller, and the size of the electrical compartment along the horizontal direction can be reduced while the size of the cooking utensil 100 along the horizontal direction remains unchanged, so as to increase the size of the cavity 20 along the horizontal direction.

[0053] Moreover, the highest point of the waveguide cover 40 is not higher than the top surface of the top plate 22. For example, the highest point of the waveguide cover 40 is lower than or equal to the top surface of the top plate 22. Therefore, there is no need to increase the overall height of the cooking utensil 100. The volume of the electrical compartment can be reduced without changing the overall volume of the cooking utensil 100 to increase the volume of the cavity 20, which is beneficial to increase the effective space of the cooking utensil 100, improve the volumetric ratio of the cooking utensil 100, enable the cooking utensil 100 to hold more food, and reduce the transportation cost and material cost of the cooking utensil 100. It has good economy and is conducive to popularization and use.

[0054] According to the cooking utensil 100 of the embodiment of the present invention, by arranging the waveguide cover 40 above the microwave generating assembly 30 and making the highest point of the waveguide cover 40 not higher than the top surface of the top plate 22, the volume of the cavity 20 can be increased while the overall volume of the cooking utensil 100 remains unchanged, so as to increase the effective space of the cooking utensil 100, improve the volumetric ratio of the cooking utensil 100, enable the cooking utensil 100 to hold more food, and reduce the transportation cost and material cost of the cooking utensil 100, thereby achieving better economy.

[0055] In some embodiments of the present invention, Figure 1-Figure 6 As shown, at least part of the waveguide cover 40 is located at the lower side of the top plate 22, and the waveguide cover 40 cooperates with the top plate 22 to define a channel 401 for conducting microwaves. The top plate 22 and the waveguide cover 40 are arranged in the up-down direction, which is conducive to integrating the top plate 22 and the waveguide cover 40 into one body, making the structure of the cooking device 100 more compact.

[0056] The top plate 22 and the waveguide cover 40 may be integrally formed or may be separate parts. In an embodiment where the top plate 22 and the waveguide cover 40 are separate parts, the top plate 22 and the waveguide cover 40 may be connected together by one or more connection methods such as welding, riveting, and bolting.

[0057] In some embodiments, Figure 1 and Figure 6-Figure 10 As shown, the top plate 22 also defines a second cavity 223, which is located on one side of the first cavity 221 in the horizontal direction and is connected to the first cavity 221 through the mounting port 222, and the second cavity 223 has a first lower end opening 2231 located inside the cavity 20 and a second lower end opening 2232 located outside the cavity 20.

[0058] The waveguide cover 40 includes a first part 41, a second part 42 and a third part 43, the first part 41 covers the installation port 222, the second part 42 covers the first lower end opening 2231, and the third part 43 covers the second lower end opening 2232, wherein at least one of the first part 41 and the second part 42 is provided with a connecting port 44, and the connecting port 44 connects the waveguide cover 40 and the cavity 20.

[0059] The top plate 22 has a first cavity 221 and a second cavity 223 which are recessed upward and arranged in the horizontal direction. The wall surface of the first cavity 221 and the cavity wall of the cavity body 21 define a space for placing food. The cavity wall of the cavity body 21 may include Figure 4 The second concave cavity 223 is located on the upper side of the waveguide cover 40, and the wall surface of the second concave cavity 223 and the waveguide cover 40 define a channel 401 for conducting microwaves.

[0060] The first part 41, the second part 42 and the third part 43 of the waveguide cover 40 are respectively matched with the installation port 222, the first lower end opening 2231 and the second lower end opening 2232 of the top plate 22, so that the waveguide cover 40 can adapt to the shape of the second concave cavity 223 and be connected with the first concave cavity 221, so that the waveguide cover 40 forms a connecting port 44 with more dimensions and a larger range. The microwaves in the channel 401 can be emitted to the inside of the cavity 20 through the connecting tube, which is beneficial to increase the angle of emitting microwaves into the cavity 20 through the connecting port 44, so as to improve the heating uniformity of the cooking appliance 100.

[0061] In other embodiments of the present invention, a mounting opening 222 is provided on the side wall of the first cavity 221, and the waveguide cover 40 is located on one side of the top plate 22 in the horizontal direction and covers the mounting opening 222, that is, the top plate 22 and the waveguide cover 40 are arranged in the horizontal direction, and there is no need to arrange the waveguide cover 40 on the lower side of the top plate 22. In the process of designing the waveguide cover 40, there is no need to consider the structure of the top plate 22 too much, which is conducive to simplifying the structure of the waveguide cover 40 and facilitating the processing of the waveguide cover 40.

[0062] In some embodiments of the present invention, Figure 3 , Figure 7 and Figure 9-12 As shown, the communication port 44 between the waveguide cover 40 and the cavity 20 includes a first communication port 411, at least part of the first communication port 411 extends upward and tilted toward the direction close to the first concave cavity 221, so that at least part of the first communication port 411 opens toward the bottom of the cavity 20, and microwaves are emitted into the cavity 20 through the first communication port 411, so that the microwaves can be transmitted to the food placed at the bottom of the cavity 20 more quickly, thereby improving the heating efficiency. The first communication port 411 can be one opening or include a plurality of openings arranged at intervals.

[0063] For example, in some specific embodiments, Figure 7 As shown, the first connecting port 411 is provided in the first part 41 of the waveguide cover 40, and the first connecting port 411 extends obliquely upward and leftward, so that the first connecting port 411 opens toward the bottom of the cavity 20, and microwaves are emitted toward the inside of the cavity 20 in a leftward and downward direction through the first connecting port 411, so that the microwaves can be transmitted to the food at the bottom of the cavity 20 more quickly.

[0064] At least a portion of the first connecting port 411 extends obliquely upward and toward the first concave cavity 221, so that the first connecting port 411 may have other portions extending in other directions, thereby increasing the emission angle of microwaves emitted into the cavity 20 through the first connecting port 411 and improving the heating uniformity of the cooking appliance 100.

[0065] In some embodiments, Figure 11-Figure 12 As shown, the angle between the wall surface forming the first communication port 411 and the horizontal portion of the inner wall of the first concave cavity 221 is a, and 90°≤a<180°. If a is too small, the microwaves emitted into the cavity 20 through the first communication port 411 will be emitted upwards instead of toward the food below, resulting in poor heating effect. If a is too large, the top plate 22 will be sunken downwards, resulting in a reduction in the volume of the cavity 20. Setting 90°≤a<180° is conducive to taking into account both the heating effect on the food and the high volume of the cavity 20.

[0066] In some embodiments, Figure 3 , Figure 7 and Figure 9-12As shown, the communication port 44 between the waveguide cover 40 and the cavity 20 includes a second communication port 421, which penetrates in the vertical direction so that the second communication port 421 opens directly toward the bottom of the cavity 20, and the microwaves emitted into the cavity 20 through the second communication port 421 can be transmitted to the food placed at the bottom of the cavity 20 more quickly, thereby improving the heating efficiency of the cooking device 100. The second communication port 421 can be one opening or include a plurality of openings arranged at intervals.

[0067] For example, in some specific embodiments, Figure 7 As shown, the second connecting port 421 is provided in the second part 42 of the waveguide cover 40, and the plane where the second connecting port 421 is located is a horizontal plane, so that the second connecting port 421 extends in the horizontal direction and penetrates in the up and down directions, and microwaves are emitted into the cavity 20 in the up and down directions through the second connecting port 421, so that the microwaves can be transmitted to the food at the bottom of the cavity 20 more quickly.

[0068] In some embodiments, Figure 7 As shown, the connecting port 44 between the waveguide cover 40 and the cavity 20 includes a first connecting port 411 and a second connecting port 421. The first connecting port 411 and the second connecting port 421 have different extending directions, so that the waveguide cover 40 forms connecting ports 44 with more dimensions, increasing the angles of microwaves emitted into the cavity 20 through the connecting ports 44, which is beneficial to improving the heating uniformity of the cooking appliance 100.

[0069] The first connecting port 411 and the second connecting port 421 can be spaced apart or connected. In the embodiment where the first connecting port 411 and the second connecting port 421 are connected, the angle of microwave emission into the cavity 20 through the connecting port 44 can be further increased, and the heating uniformity of the cooking device 100 is better.

[0070] The shape and size of the connecting port 44 are not limited. For example, the connecting port 44 can be any one of a trapezoidal, rectangular, circular, hexagonal, and irregular shape. The present application can select a suitable shape and size of the connecting port 44 according to the required microwave emission angle.

[0071] In some embodiments of the present invention, the connecting port 44 between the waveguide cover 40 and the cavity 20 is an integrated opening, which can further increase the angle of emitting microwaves into the cavity 20, improve the heating uniformity of the cooking utensil 100, and the integrated opening can be manufactured once without multiple manufacturing, thereby improving the processing efficiency.

[0072] In other embodiments, the connecting port 44 between the waveguide cover 40 and the cavity 20 includes a plurality of spaced-apart openings, through which the angle of microwave emission into the cavity 20 can be adjusted, thereby facilitating adjustment of the plurality of spaced-apart openings according to the desired microwave emission angle, so as to improve the heating effect of the cooking device 100.

[0073] For example, the communication port 44 between the waveguide cover 40 and the cavity 20 includes a first communication port 411 and a second communication port 421 arranged at intervals. For example, the communication port 44 between the waveguide cover 40 and the cavity 20 includes a first communication port 411, and the first communication port 411 includes a plurality of openings arranged at intervals. For example, the communication port 44 between the waveguide cover 40 and the cavity 20 includes a second communication port 421, and the second communication port 421 includes a plurality of openings arranged at intervals, etc.

[0074] In some embodiments of the present invention, Figure 5-Figure 6 and Figure 10-Figure 10 As shown, a shielding member 45 is provided at the communication port 44 between the waveguide cover 40 and the cavity 20, and the shielding member 45 allows microwaves to pass through. The shielding member 45 can play a role in dust prevention, blocking oil stains or steam. For example, the shielding member 45 can block oil stains, steam, etc. that may be generated in the cavity 20 during the operation of the cooking utensil 100, reduce the risk of oil stains or steam entering the channel 401 or even splashing onto the microwave generating assembly 30, and help protect the microwave generating assembly 30. The shielding member 45 can be a mica sheet, etc., which can allow microwaves to pass through and block impurities such as oil stains and steam.

[0075] In some embodiments of the present invention, Figure 4-Figure 7 As shown, a heating element 24 is provided at the lower opening of the first concave cavity 221, and a waveguide cover 40 is located above the heating element 24. The heating element 24 can be used to bake and heat the food below the heating element 24, so that the cooking device 100 also has a grilling function, and the waveguide cover 40 is located above the heating element 24, which means that the waveguide cover 40 does not occupy the space in the cavity 20 for placing food, so that the cooking device 100 can place more food, which is conducive to ensuring a higher volume ratio and a larger effective space of the cooking device 100.

[0076] In some embodiments of the present invention, Figure 1-Figure 3 As shown, the cooking appliance 100 further includes a transformer 11 and a high-voltage capacitor 12, and the transformer 11 and the high-voltage capacitor 12 are used to excite the microwave generating assembly 30 to generate microwaves. The transformer 11 and the high-voltage capacitor 12 are located in the housing 10 and below the microwave generating assembly 30. The transformer 11 and the high-voltage capacitor 12 are arranged in the front-to-back direction, which is conducive to making full use of the installation space of the cooking appliance 100 in the up-down direction and the front-to-back direction, so that the transformer 11, the high-voltage capacitor 12 and the microwave generating assembly 30 are arranged in the left-right direction with the cavity 20 as a whole, and there is no need to reduce the space in the cavity 20 to install the transformer 11 and the high-voltage capacitor 12, which is conducive to ensuring a larger effective space of the cooking appliance 100.

[0077] In other embodiments, the cooking appliance 100 further includes a frequency converter, which is used to excite the microwave generating assembly 30 to generate microwaves. The frequency converter is located in the housing 10 and below the microwave generating assembly 30, which is conducive to fully utilizing the space of the cooking appliance 100 in the up-down direction, so that the frequency converter and the microwave generating assembly 30 are arranged in the left-right direction with the cavity 20 as a whole, and there is no need to reduce the space in the cavity 20 to install the frequency converter, which is conducive to ensuring a larger effective space of the cooking appliance 100.

[0078] In some embodiments, Figure 1-Figure 3 As shown, the cooking appliance 100 further includes a heat dissipation fan 13, which is located in the housing 10 and on one side of the microwave generating assembly 30 along the front-rear direction. The heat dissipation fan 13 is located directly above the high-voltage capacitor 12, and the microwave generating assembly 30 is located directly above the transformer 11. The microwave generating assembly 30 generates heat during operation, and excessive heat can easily damage the microwave generating assembly 30. Therefore, the present application provides a heat dissipation fan 13, and the heat dissipation fan 13 is used to blow air to the microwave generating assembly 30 to dissipate heat, which can reduce the temperature of the microwave generating assembly 30 during operation and is conducive to protecting the microwave generating assembly 30.

[0079] Moreover, the cooling fan 13, the high-voltage capacitor 12 and the transformer 11 are all located on the same vertical plane as the microwave generating assembly 30. There is no need to reduce the space in the cavity 20 to install the cooling fan 13. By locating the cooling fan 13 on one side of the microwave generating assembly 30 in the front-to-back direction and directly above the high-voltage capacitor 12, and locating the microwave generating assembly 30 directly above the transformer 11, it is beneficial to fully utilize the installation space of the electrical compartment in the outer shell 10, improve the structural compactness of the cooking appliance 100, and realize the miniaturization of the cooking appliance 100.

[0080] In some embodiments of the present invention, Figure 1-Figure 3 and Figure 6-Figure 7 As shown, the microwave generating assembly 30 includes a housing 31 and a magnetron 32. The housing 31 is provided with a heat dissipation channel 311. The magnetron 32 is at least partially located in the heat dissipation channel 311. The heat dissipation channel 311 has a first channel opening 3111 and a second channel opening 3112 arranged front to back. The cooking appliance 100 also includes a heat dissipation fan 13, which is opposite to the first channel opening 3111 and is used to blow air into the first channel opening 3111 to drive the air flow in the heat dissipation channel 311. The cavity body 21 is provided with an air inlet 23, and the second channel opening 3112 is arranged adjacent to the air inlet 23 so that the air flow in the heat dissipation channel 311 enters the cavity 20 through the air inlet 23.

[0081] The heat dissipation fan 13 is opposite to the first channel opening 3111, which means that the heat dissipation fan 13 is at least partially opposite to the first channel opening 3111 along a certain direction, for example Figure 2The portion of the heat dissipation fan 13 shown is directly opposite to the first channel opening 3111 along the front-to-back direction, so that the heat dissipation fan 13 blows air directly toward the first channel opening 3111 .

[0082] The second channel opening 3112 is arranged near the air inlet 23, which means that the second channel opening 3112 is opposite to or adjacent to the air inlet 23, and the distance between the second channel opening 3112 and the air inlet 23 is small, for example, zero, so that the air outlet direction of the second channel opening 3112 is toward the air inlet 23, so that the airflow in the heat dissipation channel 311 is blown from the second channel opening 3112 to the air inlet 23 to enter the cavity 20.

[0083] The magnetron 32 generates heat during operation, and the cooling fan 13 can blow air to the first channel opening 3111 so that the airflow takes away the heat of the magnetron 32 in the cooling channel 311, so that the airflow with heat in the cooling channel 311 flows toward the second channel opening 3112 driven by the cooling fan 13, and flows into the cavity 20 through the air inlet 23.

[0084] The shell 31 can guide the airflow passing through the magnetron 32 so that more of the hot airflow passing through the magnetron 32 can flow into the cavity 20. This can not only dissipate heat for the magnetron 32 to protect it, but also reduce the hot airflow flowing to other components to reduce the damage to other components caused by the heat in the airflow. The airflow can also be introduced into the cavity 20 to increase the temperature in the cavity 20 by using the heat in the airflow, thereby achieving a better heating effect on the food.

[0085] In some embodiments, Figure 3 As shown, the housing 31 includes a mounting shell 312 and an air guide cover 313 connected to each other, and the tube core 321 of the magnetron 32 is located in the mounting shell 312. The mounting shell 312 and the air guide cover 313 are used to extend the path of the heat dissipation channel 311, so that the airflow flowing through the magnetron 32 can be more fully in contact with the magnetron 32 to take away more heat from the magnetron 32 before entering the cavity 20, which has a better heat dissipation effect on the magnetron 32, and is conducive to fully utilizing the installation space in the electrical compartment to install the air guide cover 313, without increasing the overall volume of the cooking appliance 100 or reducing the size of the cavity 20, which is conducive to maintaining a high volume ratio and a large effective space of the cooking appliance 100.

[0086] In some embodiments of the present invention, Figure 1-Figure 3 , Figure 6-Figure 7 and Figure 10-12As shown, a mounting bracket 46 is provided at the lower end of the waveguide cover 40, and the microwave generating assembly 30 is mounted on the mounting bracket 46. The mounting bracket 46 is used to realize an indirect connection between the microwave generating assembly 30 and the waveguide cover 40. There is no need to design a structure for mounting the microwave generating assembly 30 on the waveguide cover 40, which is beneficial to simplifying the structure of the waveguide cover 40 and facilitating the manufacture of the waveguide cover 40.

[0087] The waveguide cover 40 and the mounting bracket 46 can be integrally formed or separate parts. In the embodiment where the waveguide cover 40 and the mounting bracket 46 are separate parts, the waveguide cover 40 and the mounting bracket 46 can be connected together by one or more connection methods such as welding, riveting and bolting.

[0088] A cooking appliance 100 according to a specific embodiment of the present invention is described in detail below with reference to the accompanying drawings. It should be understood that the following description is only an exemplary illustration and should not be construed as limiting the invention.

[0089] like Figure 1-Figure 12 As shown, a cooking appliance 100 according to a specific embodiment of the present invention includes a housing 10, a cavity 20, a microwave generating assembly 30, a waveguide cover 40, a mounting bracket 46, a transformer 11, a high-voltage capacitor 12, a cooling fan 13, an oven door assembly 14, a control box assembly 15, a locking assembly 16 and a heating element 24. The cavity 20, the microwave generating assembly 30, the waveguide cover 40, the mounting bracket 46, the transformer 11, the high-voltage capacitor 12, the cooling fan 13 and the locking assembly 16 are all installed in the housing 10.

[0090] The cavity 20 includes a cavity body 21 and a top plate 22, and the top plate 22 is covered on the top of the cavity body 21. The cavity body 21 includes a bottom plate 211, a rear plate 212, a front plate 213, a left U-shaped plate 214 and a right U-shaped plate 215 connected to each other. The cavity body 21 is combined with the top plate 22 to define a space for placing food. A rotatable turntable glass 25 is provided on the bottom plate 211 to place food. During the operation of the cooking device 100, the turntable glass 25 rotates to drive the food to rotate, so that the microwave heating of the food is more uniform.

[0091] The top plate 22 defines a first concave cavity 221 and a second concave cavity 223 which are recessed upwards. The second concave cavity 223 is located on the right side of the first concave cavity 221. The first concave cavity 221 and the second concave cavity 223 are connected through the mounting port 222. The second concave cavity 223 has a first lower end opening 2231 located inside the cavity 20 and a second lower end opening 2232 located outside the cavity 20.

[0092] A heating element 24 is disposed in the cavity 20 to facilitate grilling of food.

[0093] The microwave generating assembly 30 and the waveguide cover 40 are both located on the right side of the cavity 20. The waveguide cover 40 is located above the microwave generating assembly 30 and on the lower side of the top plate 22. In the up-down direction, the waveguide cover 40 is located above the heating element 24. The waveguide cover 40 is welded to the lower right end of the top plate 22, and the mounting bracket 46 is welded to the lower end of the waveguide cover 40, so that the top plate 22, the waveguide cover 40 and the mounting bracket 46 are integrated into one body, and the microwave generating assembly 30 is mounted on the mounting bracket 46. The waveguide cover 40 cooperates with the top plate 22 to define a channel 401 for conducting microwaves, and the microwave energy output device 324 for generating microwaves of the microwave generating assembly 30 is inserted upward into the channel 401 to emit microwaves to the channel 401.

[0094] The waveguide cover 40 includes a first portion 41, a second portion 42 and a third portion 43. The first portion 41 covers the installation opening 222, the second portion 42 covers the first lower end opening 2231, and the third portion 43 covers the second lower end opening 2232. The first portion 41 is provided with a first communication opening 411, and the second portion 42 is provided with a second communication opening 421. The first communication opening 411 and the second communication opening 421 are both connected to the space in the cavity 20 and the channel 401, so as to conduct the microwaves generated by the microwave generating assembly 30 into the cavity 20.

[0095] The first communication port 411 extends upward and obliquely to the left, and the angle a between the wall of the first communication port 411 and the horizontal portion of the inner wall of the first concave cavity 221 is 120°. The second communication port 421 penetrates in the vertical direction. The first communication port 411 and the second communication port 421 are arranged spaced apart, and shielding members 45 are provided at the first communication port 411 and the second communication port 421. The shielding members 45 allow microwaves to pass through to shield impurities such as oil, dirt and steam.

[0096] The transformer 11 and the high-voltage capacitor 12 are both located below the microwave generating assembly 30 , the transformer 11 is located in front of the high-voltage capacitor 12 , the transformer 11 is located directly below the microwave generating assembly 30 , the cooling fan 13 is located on the rear side of the microwave generating assembly 30 , and the high-voltage capacitor 12 is located directly below the cooling fan 13 .

[0097] The microwave generating assembly 30 includes a housing 31 and a magnetron 32 . The magnetron 32 includes a tube core 321 , a magnetic circuit system 322 , a filter system 323 and a microwave energy output device 324 . The tube core 321 is a main heat source.

[0098] The housing 31 includes a mounting shell 312 and an air guide cover 313 connected to each other. The tube core 321 is located in the mounting shell 312. A plurality of heat sinks 3113 spaced apart in the up-down direction are provided in the mounting shell 312. The mounting shell 312 and the air guide cover 313 define a heat dissipation channel 311. The heat dissipation channel 311 has a first channel opening 3111 and a second channel opening 3112. The rear end of the mounting shell 312 is open to form the first channel opening 3111, the front side of the mounting shell 312 is open to communicate with the air guide cover 313, the front side of the air guide cover 313 is closed and the left side is open to form the second channel opening 3112.

[0099] The heat dissipation fan 13 is located directly behind the first channel opening 3111 to face the first channel opening 3111, and the heat dissipation fan 13 blows air into the first channel opening 3111 to drive the air flow in the heat dissipation channel 311. The right U-shaped plate 215 of the cavity body 21 is provided with an air inlet 23, and the second channel opening 3112 is located on the right side of the air inlet 23 and faces the air inlet 23, and the distance between the second channel opening 3112 and the air inlet 23 is zero, so that the air flow in the heat dissipation channel 311 enters the cavity 20 through the air inlet 23.

[0100] The right side of the mounting shell 312 is closed and provided with a thermostat 34 , through which the temperature of the magnetron 32 can be determined, so that the magnetron 32 can be controlled to stop working to protect the magnetron 32 when the temperature of the magnetron 32 is too high.

[0101] The rear side of the air guide cover 313 is closed and penetrated by a light bulb assembly 33. The light bulb assembly 33 emits light to illuminate the interior of the cavity 20 through the air inlet 23, making it convenient for the user to observe the heating status of the food.

[0102] The oven door assembly 14 is used to open the cooking utensil 100 to put food into the cavity 20, the control box assembly 15 is used to control the heating time and heating temperature of the cooking utensil 100, and the interlocking assembly 16 is used to stop the cooking utensil 100 from working when the oven door assembly 14 is in an open state, and ensure that the cooking utensil 100 starts working when the oven door assembly 14 is in a closed state.

[0103] The cooking device 100 of this specific embodiment can increase the volume of the cavity 20 without changing the overall volume of the cooking device 100, so as to increase the effective space of the cooking device 100 and improve the volume ratio of the cooking device 100, so that the volume ratio of the cooking device is increased from 50% to more than 60%, thereby reducing the manufacturing cost and transportation cost of the cooking device 100. In addition, through the cooperation of the first connecting port 411 and the second connecting port 421, microwave emission in multiple dimensions toward the cavity 20 can be achieved, which is beneficial to improving the heating uniformity of the cooking device 100 and improving the cooking uniformity of food from 80% to more than 90%.

[0104] Other structures and operations of the cooking appliance 100 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0105] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0106] In the description of this specification, the description with reference to the terms "embodiment", "specific embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0107] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A cooking utensil, characterized in that: include: A shell and a cavity, wherein the cavity is arranged in the shell, the cavity comprises a cavity body and a top plate, the top plate cover is arranged on the top of the cavity body, and the top plate defines a first concave cavity which is concave upwards; A microwave generating assembly, the microwave generating assembly being located in the housing and on one side of the cavity in a horizontal direction; A waveguide cover is located in the shell and is arranged above the microwave generating assembly. The highest point of the waveguide cover is not higher than the top surface of the top plate, and the waveguide cover is connected to the cavity to conduct the microwaves generated by the microwave generating assembly to the first concave cavity.

2. The cooking device according to claim 1, characterized in that: At least a portion of the waveguide cover is located on the lower side of the top plate, and the waveguide cover cooperates with the top plate to define a channel for conducting microwaves.

3. The cooking device according to claim 2, characterized in that: The top plate further defines a second concave cavity, the second concave cavity is located on one side of the first concave cavity in a horizontal direction and is connected to the first concave cavity through a mounting port, the second concave cavity has a first lower end opening located in the cavity and a second lower end opening located outside the cavity, The waveguide cover includes a first part, a second part and a third part, the first part covers the installation port, the second part covers the first lower end opening, and the third part covers the second lower end opening, wherein at least one of the first part and the second part is provided with a connecting port, and the connecting port connects the waveguide cover and the cavity.

4. The cooking device according to claim 1, characterized in that: A mounting opening is provided on the side wall of the first cavity, and the waveguide cover is located on one side of the top plate in the horizontal direction and covers the mounting opening.

5. The cooking device according to claim 1, characterized in that: The communication port between the waveguide cover and the cavity includes a first communication port, at least a portion of which extends obliquely upward and toward a direction close to the first concave cavity.

6. The cooking device according to claim 1 or 5, characterized in that: The communication port between the waveguide cover and the cavity includes a second communication port, and the second communication port penetrates along a vertical direction.

7. The cooking device according to claim 1, characterized in that: The communication port between the waveguide cover and the cavity is an integral opening, or includes a plurality of openings arranged at intervals.

8. The cooking device according to claim 1, characterized in that: A shielding member is provided at the communication port between the waveguide cover and the cavity, and the shielding member allows microwaves to pass through.

9. The cooking device according to claim 1, characterized in that: A heating element is provided at the lower opening of the first cavity, and the waveguide cover is located above the heating element.

10. The cooking device according to claim 1, characterized in that: Also includes: A transformer and a high-voltage capacitor, wherein the transformer and the high-voltage capacitor are located in the housing and below the microwave generating assembly, and the transformer and the high-voltage capacitor are arranged in a front-to-back direction; or, A frequency converter is located in the housing and below the microwave generating assembly.

11. The cooking device according to claim 10, characterized in that: Also includes: A cooling fan is located in the housing and on one side of the microwave generating assembly in the front-rear direction. The cooling fan is located directly above the high-voltage capacitor, and the microwave generating assembly is located directly above the transformer.

12. The cooking device according to claim 1, characterized in that: The microwave generating assembly comprises a housing and a magnetron, wherein the housing is provided with a heat dissipation channel, wherein the magnetron is at least partially located in the heat dissipation channel, and wherein the heat dissipation channel has a first channel opening and a second channel opening arranged front to back. The cooking appliance further comprises a heat dissipation fan, which is opposite to the first channel opening and is used to blow air into the first channel opening to drive the air flow in the heat dissipation channel. The cavity body is provided with an air inlet, and the second channel opening is arranged adjacent to the air inlet, so that the airflow in the heat dissipation channel enters the cavity through the air inlet.

13. The cooking appliance according to claim 1, characterized in that A mounting bracket is provided at the lower end of the waveguide cover, and the microwave generating assembly is mounted on the mounting bracket.

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