Double-cavity cooking equipment

Abstract

The utility model provides double-cavity cooking equipment which comprises a shell, a first cavity and a second cavity are arranged in the shell, the first cavity is provided with a first inner container, the second cavity is provided with a second inner container, the first cavity is located above the second cavity, a top plate, a partition plate and a cover shell are sequentially arranged above the second inner container, and the top plate is located above the partition plate. A middle air channel is formed between the partition plate and the top plate, an air outlet channel is formed between the partition plate and the housing, and a second fan is arranged at one end of the housing and used for driving airflow to flow from the middle air channel to the air outlet channel. According to the double-cavity cooking equipment, the double-layer air duct structures are formed on the two sides of the partition plate, so that the second cavity meets the heat dissipation requirement, the heat preservation effect is achieved, and heat generated by the second cavity is effectively prevented from being conducted upwards; the structure is simple and production and processing are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a double-cavity cooking device. Background Art

[0002] As people's pursuit of delicious food continues to improve, cooking equipment, with its unique dual-cavity design, has achieved simultaneous cooking methods such as steaming and baking, greatly improving cooking efficiency and food quality, and becoming an important home appliance product for improving the quality of life.

[0003] Traditional cooking equipment features two cooking chambers arranged vertically, such as a steam oven at the bottom for steaming or baking food, and a microwave oven at the top for quickly heating food. Since cooking equipment is typically installed in a small space within a kitchen, if a large amount of heat generated by the steam oven is transferred to the microwave oven, it can affect the microwave's operational stability. To address this issue, Chinese patent application number 202220586876.9 discloses a dual-cavity cooking device. An electrical chamber is formed behind the upper chamber and above the lower chamber. The electrical chamber houses a magnetron that provides microwaves to at least one of the first and second cooking chambers. This solution can reduce the overall height of the dual-cavity cooking device, lowering transportation and storage costs. However, this solution does not provide ideal heat dissipation from the second chamber and results in high energy consumption.

[0004] In view of this, the present utility model is proposed. Utility Model Content

[0005] The problem solved by the utility model is that the existing double-cavity cooking equipment has an unreasonable structure, which results in poor heat dissipation effect.

[0006] The utility model provides a dual-cavity cooking device, including a shell, wherein a first cavity and a second cavity are arranged in the shell, the first cavity has a first inner pot, the second cavity has a second inner pot, the first cavity is located above the second cavity, and a top plate, a partition plate, and a cover shell are sequentially arranged above the second inner pot, an intermediate air duct is formed between the partition plate and the top plate, an outlet air duct is formed between the partition plate and the cover shell, and a second fan is arranged at one end of the cover shell for driving airflow from the intermediate air duct to the outlet air duct.

[0007] This setting uses a partition to form a double-layer air duct structure at the top of the second cavity, so that a partition is formed between the second cavity and the first cavity to prevent heat from being conducted upward, while allowing the heat generated by the second cavity to be discharged smoothly, resulting in good heat dissipation effect.

[0008] Preferably, the second fan is located on the rear side of the partition and partially protrudes from the partition. This arrangement can drive the air behind the second inner liner into the air outlet duct when the second fan is running, which can not only discharge the heat generated at the rear side of the second inner liner, but also form an air insulation layer between the second inner liner and the first cavity, preventing heat from radiating upward and affecting the operation of the first cavity.

[0009] Preferably, the side portions of the partitions protrude away from the top plate and form air inlets, which are connected to the intermediate air duct. This arrangement allows air to enter the intermediate air duct from both sides, thereby utilizing the second fan to drive airflow on both sides of the second inner liner, allowing for uniform and stable heat dissipation around the outer periphery of the second inner liner. Furthermore, the air inlet area of ​​the intermediate air duct is increased, thereby reducing the operating power of the second fan and lowering energy consumption.

[0010] Preferably, the widths of the second inner liner and the top plate are M1 and M2 respectively, where M1 is less than M2; a first notch is provided on the top plate protruding from the second inner liner in the width direction, the first notch is located below the air inlet part, and a first opening is provided on the air inlet part at a position corresponding to the first notch.

[0011] This arrangement helps maintain a balanced temperature around the second inner liner. Specifically, the heating element on the side of the second inner liner raises the temperature of the side, causing the heated air to naturally flow upward and be driven by the second fan into the central air duct. The top plate and partitions on top of the second inner liner provide excellent thermal insulation.

[0012] Preferably, the second cavity includes a door assembly, the second liner has an opening, the door assembly is arranged at the opening so as to be openable and closable, a protrusion is provided on the side of the partition close to the door assembly, and the protrusion is partially abutted against the lower end surface of the cover shell; the protrusion includes a first inclined surface, and the first inclined surface is arranged to gradually tilt downward from the inlet end to the outlet end close to the air outlet duct, and the first inclined surface is provided with a second air inlet.

[0013] This arrangement can utilize the raised portion to support the cover shell, and at the same time, the second air inlet provided on the side of the raised portion away from the second fan can allow part of the external air to enter the middle air duct from the second air inlet, thereby reducing the temperature of the top of the second inner tank.

[0014] Preferably, the door assembly includes a vertically arranged decorative panel and a vertical panel, a gap exists between the vertical panel and the second inner liner, a door air duct is formed between the vertical panel and the decorative panel, and the outlet end of the door air duct is connected to the intermediate air duct for delivering air to the intermediate air duct.

[0015] After the door assembly is heated, the air in the door air duct moves upward due to the heat and eventually enters the middle air duct, which can further reduce the energy consumption of the second fan. At the same time, the door air duct is used to preheat the air entering the middle air duct, which is beneficial to maintaining the temperature in the second inner tank and saving more energy.

[0016] Preferably, an assembly plate is provided at the bottom of the first liner, and a reinforcing rib is provided on a side of the cover shell close to the assembly plate, and the reinforcing rib abuts against the assembly plate.

[0017] This setting can enhance the mechanical strength of the cover, and at the same time reduce the contact area between the cover and the assembly plate. Less heat is conducted upward to the assembly plate through the cover, which not only does not interfere with the normal operation of the first cavity, but also effectively prevents heat loss in the second cavity, and has high energy utilization.

[0018] Preferably, the second cavity includes a heating assembly located on at least one of the top, bottom, or rear of the second inner pot. This arrangement ensures that food is evenly heated from multiple sides, preventing food from being overheated on one side while undercooked on the other. This helps improve the taste and quality of the food, ensures more even heating, and shortens cooking time.

[0019] Preferably, the cavity also includes: a first air duct, located above the first inner tank, a magnetron is provided at the outlet end of the first air duct, and the magnetron is used to generate microwaves; a second air duct, the second air duct is located on the side of the magnetron away from the first air duct, and the second air duct has a first air inlet and an air outlet connected to the first inner tank; a first fan, the first fan is located at the inlet end of the first air duct, and is used to drive the airflow toward the magnetron and at the same time drive part of the airflow into the first inner tank.

[0020] This setting can drive the air flow to the magnetron for heat dissipation through a fan component, and at the same time can drive part of the air flow into the first inner pot, so that the water vapor, oil droplets, etc. generated in the first inner pot when heating food are discharged into the second air duct with the air, ensuring that the first inner pot is always in a clean state; only one fan component is required to drive it, the structural layout is reasonable and the energy consumption is low.

[0021] Compared with the prior art, the dual-cavity cooking device of the present invention has the following beneficial effects: 1) by arranging a double-layer air duct structure on the top of the second cavity, the second cavity can meet the heat dissipation requirements and produce a heat preservation effect, and effectively prevent the heat generated by the second cavity from being conducted upward; 2) a first fan can be used to drive the air flow to the magnetron for heat dissipation, while allowing part of the air to enter the first inner pot, thereby discharging water vapor, oil droplets, etc. generated by heating food with the air; 3) the structure is simple and easy to produce and process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is an overall schematic diagram of the cooking device according to an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the internal structure of the dual-cavity cooking device according to an embodiment of the present utility model;

[0024] Figure 3 This is a structural diagram of the dual-cavity cooking device of the present invention without the first cover and the second cover;

[0025] Figure 4 for Figure 1 A schematic cross-sectional view of the dual-cavity cooking device along the AA side;

[0026] Figure 5 for Figure 4 A partial enlarged view of point B in the middle;

[0027] Figure 6 for Figure 4 A partial enlarged view of point C in the middle;

[0028] Figure 7 This is a schematic structural diagram of the second cavity of the present invention;

[0029] Figure 8 for Figure 7 A partial enlarged view of point D in the middle;

[0030] Figure 9 This is a schematic diagram of the structure of the second cavity of the present invention after removing the cover.

[0031] Description of reference numerals:

[0032] 100-Dual-cavity cooking device; 10-First cavity; 11-First liner; 12-Mounting plate; 13-First air duct; 131-First air hood; 132-First bottom shell; 14-Second air duct; 141-Second air hood; 142-Second bottom shell; 1421-First air inlet; 1422-Air outlet; 1423-Blocking rib; 143-Air outlet; 15-Magnetron; 16-Inverter board; 17-First fan; 18-Connector; 19-Electrical control structure; 20-Second Cavity; 21-second liner; 22-top plate; 221-first notch; 23-partition; 231-air inlet; 232-first opening; 233-raised portion; 234-second air inlet; 235-first reinforcing rib; 24-cover; 241-second reinforcing rib; 25-assembly plate; 26-second fan; 27-heating component; 28-door assembly; 281-handle; 282-vertical plate; 283-decorative panel; 30-housing; 31-back cover; 311-air outlet. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more clearly understood, the following is a detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings. The technical features of the present invention can be combined with each other without conflict.

[0034] It should be noted that all terms used in this utility model to indicate direction and position, such as "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "inside", "outside", "top", "low", "lateral", "longitudinal", "center", etc., are only used to explain the relative positional relationship and connection status between the various components in a certain specific state (as shown in the accompanying drawings). They are only for the convenience of describing this utility model, and do not require that the utility model must be constructed and operated in a specific orientation. Therefore, they cannot be understood as limiting the utility model. In addition, the descriptions of "first", "second", etc. in this utility model are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated.

[0035] In the description of this utility model, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections; they can refer to direct connections, indirect connections through an intermediary, or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0036] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative use of the above terms does 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 any one or more embodiments or examples.

[0037] Example 1

[0038] like Figure 1-5 As shown, a dual-cavity cooking device 100 includes a first cavity 10, wherein the first cavity 10 includes:

[0039] a first inner liner 11, wherein the first inner liner 11 has a receiving cavity for receiving food;

[0040] A first air duct 13, wherein a magnetron 15 is provided at an outlet end of the first air duct 13, and the magnetron 15 is used to generate microwaves;

[0041] A second air duct 14, located on a side of the magnetron 15 away from the first air duct 13, and having a first air inlet 1421 and an air outlet 1422 communicating with the first inner container 11;

[0042] The first fan 17 is located at the inlet end of the first air duct 13 and is used to drive the air flow toward the magnetron 15 and drive part of the air flow into the first inner container 11 at the same time.

[0043] This arrangement uses a single first fan 17 to drive airflow toward the magnetron 15 for heat dissipation, while also driving some airflow into the first inner pot 11. This allows water vapor, oil droplets, and other substances generated within the first inner pot 11 during food heating to be discharged into the second air duct 14 along with the air, ensuring that the first inner pot 11 remains clean. Requiring only a single first fan 17 for operation, the arrangement offers a rational layout and low energy consumption. The first cavity 10 also includes components such as a waveguide box, the specific structure and assembly of which are conventional and will not be elaborated upon here.

[0044] As an example of the present invention, the dual-cavity cooking device 100 further includes a mounting plate 12, on which are mounted an electrical control structure 19 and a first air duct 13. The electrical control structure 19 is positioned adjacent to the first fan 17. This arrangement allows the air surrounding the electrical control structure 19 to passively flow into the first air duct 13 when the first fan 17 delivers air into the first air duct 13, thereby removing heat generated by the electrical control structure 19. Furthermore, the electrical control structure 19 is located at the inlet of the first air duct 13, ensuring that it is not affected by the magnetron 15 and remains within a reasonable temperature range, further ensuring stable and reliable operation of the dual-cavity cooking device 100.

[0045] As an example of the present invention, the dual-cavity cooking device 100 further includes a frequency converter board 16, which is located within the first air duct 13. This arrangement allows the first fan 17 to first dissipate heat from the frequency converter board 16, and then from the magnetron 15, thereby ensuring that all electrical components meet the temperature rise test requirements.

[0046] Preferably, the first and second air ducts 13 and 14 are sealed together via the magnetron 15. The minimum vertical cross-sectional area of ​​the first air duct 13 perpendicular to the airflow direction is S1, and the maximum vertical cross-sectional area of ​​the magnetron 15 perpendicular to the airflow direction is S2, where S1>S2. This configuration allows some of the air entering the first air duct 13 to be used to dissipate heat from the inverter board 16, while all of the air entering the first air duct 13 can be used to dissipate heat from the magnetron 15. This ensures that some air does not contact the inverter board 16 and is directly used to dissipate heat from the magnetron 15, thereby achieving a balanced cooling effect for both.

[0047] Preferably, the first air duct 13 includes a first air cover 131 and a first bottom shell 132. The first bottom shell 132 is fixedly mounted on the mounting plate 12, and the first air cover 131 is disposed above the first bottom shell 132. This arrangement is simple in structure and easy to manufacture. Preferably, the first air cover 131 partially covers the heat dissipation fins of the magnetron 15.

[0048] Preferably, the second air duct 14 includes a second air hood 141 and a second bottom shell 142. The second air hood 141 is located above the second bottom shell 142. The second bottom shell 142 is located at the inlet end near the magnetron 15, lower than the outlet end. The air outlet 1422 is located near the outlet end. The first air inlet 1421 is located adjacent to the magnetron 15. The first air inlet 1421 passes through the mounting plate 12 and communicates with the first inner liner 11. The air outlet 1422 is formed by a downwardly concave portion of the second bottom shell 142, and a retaining rib 1423 is provided on one side of the inlet end. This arrangement blocks the outgoing airflow within the second air duct 14, thereby allowing some air to enter the first inner liner 11 through the first air inlet 1421. The structure is simple and easy to manufacture.

[0049] Preferably, the minimum distances between the retaining ribs 1423, the second bottom shell 142, and the second air shield 141 are H1 and H2, where H1 = (0.6-0.8) * H2. This arrangement ensures that the airflow from the second air duct 14 does not enter the first inner liner 11 through the air outlet 1422, allowing the air in the first inner liner 11 to circulate and be discharged normally. Preferably, the retaining ribs 1423 are located on the left and right sides and rear of the air outlet 1422.

[0050] As an example of the present invention, a connector 18 is provided below the air outlet 1422, and the connector 18 is connected to the first inner liner 11 after passing through the mounting plate 12. This arrangement has a simple structure, and can collect the air in the first inner liner 11 and discharge it into the second air duct 14 through the air outlet 1422. Preferably, the horizontal cross-sectional areas of the first air inlet 1421 and the air outlet 1422 are S3 and S4, wherein S3 is less than S4. This arrangement makes the air inlet velocity of the first inner liner 11 larger, thereby driving the air to flow through the connector 18 to the air outlet 1422 located at a higher position, and finally enter the second air duct 14 again.

[0051] As an example of this use, the outlet end of the second air duct 14 is provided with an air outlet 143 for discharging air toward the front of the dual-cavity cooking device 100. The dual-cavity cooking device 100 also includes a housing 30, within which the first cavity 10 is located. The housing 30 includes a rear cover 31, which is provided with multiple air vents 311. This arrangement balances the internal and external wind pressures of the dual-cavity cooking device 100, minimizing the operating resistance of the first fan 17.

[0052] After the first fan 17 is running, the air between the first cavity 10 and the shell 30 is transported to the first air duct 13. The air flow can take away the heat generated by the electronic control structure 19, and part of the air entering the first air duct 13 flows through the frequency conversion board 16 and dissipates heat to it. All the air will pass through the heat dissipation fins of the magnetron 15 and dissipate heat to it, and then enter the second air duct 14; part of the air entering the second air duct 14 is discharged to the front side through the air outlet 143; since the baffle 1423 blocks the outlet air flow, part of the air will enter the first inner tank 11 through the first air inlet 1421, and enter the second air duct 14 again through the air outlet 1422 and be finally discharged, thereby realizing heat dissipation of the first cavity 10 and ensuring its stable and reliable operation.

[0053] Example 2

[0054] like Figure 5-9 As shown, the dual-cavity cooking device 100 also includes a second cavity 20, which has a second inner pot 21 and is located on the lower side of the first cavity 10. A top plate 22, a partition 23, and a cover shell 24 are arranged above the second inner pot 21 in sequence. An intermediate air duct is formed between the partition 23 and the top plate 22, and an outlet air duct is formed between the partition 23 and the cover shell 24. A second fan 26 is provided at one end of the cover shell 24 for driving the airflow from the intermediate air duct to the outlet air duct.

[0055] This setting uses the partition 23 to form a double-layer air duct structure on the top of the second cavity 20, so that a partition is formed between the second cavity 20 and the first cavity 10 to prevent heat from being conducted upward, while allowing the heat generated by the second cavity 20 to be discharged smoothly, resulting in good heat dissipation effect.

[0056] Preferably, at least one side of the partition 23 can take in air. This setting can drive the air flow around the second inner liner 21, thereby having a certain heat dissipation effect on all sides of the second inner liner 21. As an example of the present invention, the second fan 26 is located on the rear side of the partition 23 and partially protrudes from the partition 23. This setting can drive the air on the rear side of the second inner liner 21 into the air outlet duct when the second fan 26 is running, which can not only discharge the heat generated on the rear side of the second inner liner 21, but also form an air insulation layer between the second inner liner 21 and the first cavity 10, preventing heat from radiating upward and affecting the operation of the first cavity 10.

[0057] As an example of the present invention, the partition plate 23 partially protrudes toward the side away from the top plate 22 and forms an air inlet 231, and the air inlet 231 is connected to the middle air duct. This arrangement enables the middle air duct to take in air from both sides, thereby utilizing the second fan 26 to drive the airflow on both sides of the second inner liner 21, so that the outer peripheral side of the second inner liner 21 can dissipate heat evenly and stably. Preferably, the partition plate 23 partially protrudes toward one side of the top plate 22 to form a first reinforcing rib 235, and the first reinforcing rib 235 is arranged near the air inlet 231, and is used to guide air to enter the middle air duct from the air inlet 231 and the door air duct at the same time. This arrangement has a simple structure and can balance the wind pressure of the air in the air inlet 231 and the door air duct, thereby achieving uniform and stable heat dissipation of the outer periphery of the second inner liner 21.

[0058] Preferably, the widths of the second inner liner 21 and the top plate 22 are M1 and M2, respectively, where M1 is less than M2. A first notch 221 is provided on the top plate 22, which protrudes from the second inner liner 21 in the width direction. The first notch 221 is located below the air inlet 231, and a first opening 232 is provided on the air inlet 231 at a position corresponding to the first notch 221. This arrangement can help maintain temperature equilibrium around the second inner liner 21. Specifically, when the heating component 27 on the side of the second inner liner 21 is working, the temperature of the side will increase, and the air will naturally flow upward after being heated and will be driven into the middle air duct by the second fan 26; since the top plate 22, partition 23 and other structures are set on the top of the second inner liner 21, the heat insulation effect is good; when the temperature of the gap between the second cavity 20 and the first cavity 10 is low, the air with lower temperature can enter the middle air duct through the first opening 232, circulate and eventually stabilize; the first notch 221 and the first opening 232 can make the air on the top and side of the second inner liner 21 flow and eventually make the temperature consistent.

[0059] Preferably, a raised portion 233 is provided on the side of the partition 23 near the door assembly 28. The raised portion 233 partially abuts the lower end surface of the housing 24. The raised portion 233 includes a first inclined surface that gradually slopes downward from the inlet end of the air outlet duct toward the outlet end. A second air inlet 234 is provided on the first inclined surface. This arrangement allows the raised portion 233 to provide support for the housing 24. Furthermore, the second air inlet 234, located on the side of the raised portion 233 away from the second fan 26, allows external air to enter the intermediate air duct through the second air inlet 234, thereby reducing the temperature at the top of the second inner liner 21.

[0060] As an example of the present invention, a mounting plate 25 is provided at the bottom of the first liner 11, and a second reinforcing rib 241 is provided on a side of the housing 24 adjacent to the mounting plate 25. The second reinforcing rib 241 abuts against the mounting plate 25. This arrangement enhances the mechanical strength of the housing 24 while reducing the contact area between the housing 24 and the mounting plate 25. This reduces the amount of heat conducted upward from the housing 24 to the mounting plate 25, thus preventing interference with the normal operation of the first cavity 10 and effectively preventing heat loss from the second cavity 20, resulting in high energy efficiency.

[0061] Preferably, the second cavity 20 includes a door assembly 28, the second liner 21 has an opening, the door assembly 28 is openably disposed at the opening, and the end of the partition 23 adjacent to the door assembly 28 is disposed no lower than the door assembly 28. This arrangement can prevent the door assembly 28 from blocking the airflow of the air outlet duct, resulting in low air flow resistance and low energy consumption.

[0062] As an example of the present invention, the width of the housing 24 gradually increases from the inlet end to the outlet end, and the second fan 26 is located at the inlet end of the housing 24. This arrangement maximizes the air delivery capacity of the second fan 26 while gradually reducing the flow rate of the airflow from the outlet duct. As a result, when a user approaches the door assembly 28, the wind force felt is relatively small, providing a better user experience.

[0063] As an example of the present invention, the door assembly 28 includes a vertically arranged decorative panel 283 and a vertical panel 282. There is a gap between the vertical panel 282 and the second inner liner 21. A door air duct is formed between the vertical panel 282 and the decorative panel 283. The outlet end of the door air duct is connected to the intermediate air duct for delivering air to the intermediate air duct. After the door assembly 28 is heated, the air in the door air duct moves upward due to the heat and eventually enters the intermediate air duct, which can further reduce the energy consumption of the second fan 26. At the same time, the door air duct is used to preheat the air entering the intermediate air duct, which is beneficial to maintaining the temperature in the second inner liner 21 and is more energy-efficient. The door assembly 28 also includes a handle 281. Its specific structure and assembly relationship are prior art and will not be described in detail here.

[0064] The second cavity 20 includes components such as a steam generating device, a water tank, and a heating assembly 27. The specific structure and assembly relationship thereof are prior art and will not be described in detail here.

[0065] The second inner pot 21 is heated up by the heating component 27 to cook food. At this time, the door component 28 is heated by heat radiation, and the air in the door air duct is heated and moves upward and enters the middle air duct; and after the second fan 26 is started, it can drive the air from the door air duct, the first opening 232, and the second air inlet 234 into the middle air duct, and be discharged through the air outlet duct on the upper side of the middle air duct, thereby driving the air flow on the rear, left and right sides and front sides of the second inner pot 21, realizing the overall heat dissipation of the outer periphery of the second inner pot 21, and the heat dissipation effect is good.

[0066] Although the present invention is disclosed as above, it is not limited thereto. Any person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope defined by the claims.

Claims

1. A dual-cavity cooking device, comprising a housing (30), wherein a first cavity (10) and a second cavity (20) are arranged in the housing (30), wherein the first cavity (10) has a first inner pot (11), and the second cavity (20) has a second inner pot (21), and the first cavity (10) is located above the second cavity (20), characterized in that: A top plate (22), a partition plate (23), and a cover shell (24) are sequentially arranged above the second inner liner (21); an intermediate air duct is formed between the partition plate (23) and the top plate (22); an air outlet duct is formed between the partition plate (23) and the cover shell (24); a second fan (26) is arranged at one end of the cover shell (24) for driving air flow from the intermediate air duct to the air outlet duct.

2. The dual-cavity cooking device according to claim 1, characterized in that: The second fan (26) is located on the rear side of the partition (23) and is partially protruding from the partition (23).

3. The dual-cavity cooking device according to claim 1, characterized in that: The side portion of the partition plate (23) protrudes in a direction away from the top plate (22) and forms an air inlet portion (231), and the air inlet portion (231) is communicated with the middle air duct.

4. The dual-cavity cooking device according to claim 3, characterized in that: The widths of the second inner liner (21) and the top plate (22) are M1 and M2 respectively, wherein M1 is less than M2; a first notch (221) is provided on the top plate (22) protruding from the second inner liner (21) in the width direction, the first notch (221) is located below the air inlet portion (231), and a first opening (232) is provided on the air inlet portion (231) at a position corresponding to the first notch (221).

5. The dual-cavity cooking device according to claim 1, characterized in that: The second cavity (20) includes a door assembly (28), the second liner (21) has an opening, the door assembly (28) is arranged at the opening so as to be openable and closable, a protrusion (233) is arranged on a side of the partition (23) close to the door assembly (28), and a portion of the protrusion (233) abuts against the lower end surface of the cover shell (24); the protrusion (233) includes a first inclined surface, the first inclined surface is arranged to gradually tilt downward from the inlet end to the outlet end close to the air outlet duct, and the first inclined surface is provided with a second air inlet (234).

6. The dual-cavity cooking device according to claim 5, characterized in that: The door assembly (28) includes a vertically arranged decorative plate (283) and a vertical plate (282), a gap is formed between the vertical plate (282) and the second inner liner (21), and a door body air duct is formed between the vertical plate (282) and the decorative plate (283), and the outlet end of the door body air duct is connected to the middle air duct for conveying air to the middle air duct.

7. The dual-cavity cooking device according to claim 1, characterized in that: An assembly plate (25) is provided at the bottom of the first liner (11), and a reinforcing rib (241) is provided on a side of the cover shell (24) close to the assembly plate (25), wherein the reinforcing rib (241) abuts against the assembly plate (25).

8. The dual-cavity cooking device according to claim 1, characterized in that: The second cavity (20) includes a heating component (27), and the heating component (27) is located on at least one of the top, bottom or rear of the second liner (21).

9. The dual-cavity cooking device according to claim 1, characterized in that: The first cavity (10) further comprises: A first air duct (13) is located above the first inner container (11); a magnetron (15) is provided at an outlet end of the first air duct (13); the magnetron (15) is used to generate microwaves; a second air duct (14) located on a side of the magnetron (15) away from the first air duct (13), the second air duct (14) having a first air inlet (1421) and an air outlet (1422) in communication with the first inner container (11); A first fan (17) is located at the inlet end of the first air duct (13) and is used to drive airflow toward the magnetron (15) and simultaneously drive part of the airflow into the first inner container (11).

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