Double-cavity cooking equipment

Abstract

The utility model provides double-cavity cooking equipment which comprises a shell, an upper cavity and a lower cavity are arranged in the shell, the upper cavity is provided with a first inner container, the lower cavity is provided with a second inner container, the upper cavity is located above the lower cavity, and the double-cavity cooking equipment further comprises a steam generating device and a water tank. A second connecting pipe is arranged at the bottom of the steam generating device, connected with the water tank through a pump assembly and used for reversely conveying water in the steam generating device to the water tank. According to the steam generator, redundant water in the steam generator can be discharged, internal microorganisms are effectively prevented, and corrosion can be slowed down; the middle air duct and the air outlet duct are arranged in the upper cavity and the lower cavity to form a double-layer structure, heat can be effectively prevented from being conducted upwards, and it is guaranteed that the upper cavity and the lower cavity can work normally at the same time.

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, dual-cavity 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 dual-cavity cooking devices arrange the electrical chamber and two cooking chambers vertically, making the overall height of the device relatively high. This is unacceptable for the generally compact modern kitchen. To this end, Chinese Patent Application No. 202220586876.9 discloses a dual-cavity cooking device comprising an upper chamber and a lower chamber. The upper chamber is located above the lower chamber, and 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 device and improve space utilization; however, some water cannot be drained after the steam generator is in operation, which can easily breed bacteria and affect the user experience.

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

[0005] The problem solved by the utility model is that bacteria are easily bred in the steam generator of the existing double-cavity cooking equipment and the probability of corrosion is high.

[0006] To solve the above problems, the present invention provides a dual-cavity cooking device, including a shell, an upper cavity and a lower cavity are arranged in the shell, the upper cavity has a first inner pot, the lower cavity has a second inner pot, the upper cavity is located above the lower cavity, the dual-cavity cooking device also includes a steam generating device and a water tank, a second connecting pipe is provided at the bottom of the steam generating device, the second connecting pipe is connected to the water tank through a pump assembly, and is used to reversely transport the water in the steam generating device to the water tank.

[0007] This setting can transport excess water in the steam generator back to the water tank, effectively preventing the internal growth of bacteria and microorganisms and avoiding corrosion; at the same time, it avoids the generation of large amounts of wet steam when the steam oven is in use, ensuring that the heat exchange efficiency of the steam meets the standards.

[0008] Preferably, the steam generating device is located at the rear of the upper cavity and the top of the lower cavity, the steam generating device is provided with a first connecting pipe, the pump assembly includes a first pump and a second pump, the first pump is provided between the water tank and the first connecting pipe, and the second pump is provided between the water tank and the second connecting pipe.

[0009] This arrangement enables the water in the water tank to be transported to the steam generator via the first pump. After the steaming and baking operation is completed, the second pump is used to drain all the water in the steam generator back into the water tank, thereby ensuring that no water remains in the steam generator. As an example of the present invention, the water tank is located above the pump assembly, and the steam generator is located below the pump assembly.

[0010] Preferably, the steam generating device is provided with an outlet pipe for delivering steam into the lower cavity. In other words, the lower cavity is a steam oven and the upper cavity is a microwave oven.

[0011] Preferably, a mounting plate is provided at the top of the upper cavity, a first air guide cover and a first fan are provided on the mounting plate, a first air duct is formed between the first air guide cover and the mounting plate, a magnetron is provided within the first air duct, and the first fan is located at the inlet end of the first air duct. This arrangement allows the first fan to dissipate heat from the magnetron, ensuring stable and reliable operation and a long service life of the magnetron.

[0012] Preferably, an electric control board is mounted on the mounting plate, and the water tank is located on a side of the electric control board away from the first fan. This arrangement allows the first fan to drive air flow around the electric control board, thereby facilitating heat dissipation from the electric control board; the structure is compact, and space utilization is high.

[0013] Preferably, a second opening is provided on the front side of the second liner, and the lower cavity further comprises a second door assembly, and the second door assembly is provided at the second opening in an openable and closable manner.

[0014] Preferably, a door duct is provided in the second door assembly, with an air inlet provided at the bottom of the door duct and an air outlet provided at the top of the door duct. This arrangement allows cool air to enter the door duct, thereby lowering the surface temperature of the second door assembly and preventing accidents such as burns.

[0015] Preferably, a top plate is provided on the top of the lower cavity, and a partition and a second air guide cover are sequentially provided on the side of the top plate away from the second inner tank, an intermediate air duct is formed between the partition and the top plate, and an outlet air duct is formed between the partition and the second air guide cover, the inlet end of the intermediate air duct is connected to the air outlet, and a second fan is provided at the outlet end of the intermediate air duct for delivering air to the outlet air duct.

[0016] Preferably, the outlet duct and the intermediate duct are located on the upper and lower sides of the partition, respectively, and the air flows in opposite directions. The external cold air can discharge the heat generated by the lower cavity during the flow through the intermediate duct and the outlet duct, while forming a double barrier between the upper and lower cavities to prevent the heat generated by the lower cavity from being transferred upward to the upper cavity.

[0017] Preferably, the second inner tank is provided with a third fan and a heating component, the heating component is located on at least one of the top, bottom or rear of the second inner tank, and the third fan is located at the rear of the second inner tank for driving hot air circulation.

[0018] This setting ensures that food is heated evenly from multiple directions, avoiding the situation where one side of the food is overheated and the other side is undercooked, which helps to improve the taste and quality of the food. At the same time, the third fan is used to form a hot air circulation in the second inner pot, further enhancing the heating effect, making the food heated more evenly and shortening the cooking time.

[0019] Compared with the prior art, the dual-cavity cooking device of the present invention has the following beneficial effects: 1) it can discharge excess water in the steam generating device, effectively preventing the growth of microorganisms inside and also slowing down corrosion; 2) by arranging a double-layer structure of an intermediate air duct and an air outlet duct in the upper cavity and the lower cavity, it can effectively prevent heat from being conducted upward, ensuring that the upper cavity and the lower cavity can work normally at the same time; 3) it has a compact structure and high space utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is an overall schematic diagram of the dual-cavity cooking device according to an embodiment of the present invention;

[0021] 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;

[0022] Figure 3 for Figure 2 A partial enlarged view of point A in the middle;

[0023] Figure 4 This is a schematic cross-sectional view of the dual-cavity cooking device of the present invention taken along the AA side in the front-to-back direction;

[0024] Figure 5 for Figure 4 A partial enlarged view of point B in the middle.

[0025] Description of reference numerals:

[0026] 100-Dual-cavity cooking equipment; 1-Upper cavity; 11-First inner pot; 12-First door assembly; 13-First air guide hood; 14-First fan; 15-Mounting plate; 2-Lower cavity; 21-Second inner pot; 22-Second door assembly; 221-Handle; 222-Air inlet; 223-Door air duct; 224-Air outlet; 23-Second fan; 24-Third fan; 25-Heating assembly; 26-Second air guide hood; 27-Partition; 271-Middle air duct; 272-Air outlet duct; 28-Top plate; 3-Steam generating device; 31-First connecting pipe; 32-Second connecting pipe; 33-Outlet pipe; 4-Water tank; 5-Pump assembly; 51-First pump; 52-Second pump; 6-First bracket; 7-Electric control board; 8-Casing; 9-Magnetron. DETAILED DESCRIPTION

[0027] 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 embodiments of the present invention can be combined with each other without conflict.

[0028] In addition, a brief explanation is given of the directions involved in the following specific implementation methods: the directions or positional relationships indicated by "front", "back", "up", "down", "left", "right", "top", "bottom", etc. mentioned in the embodiments refer to the directions or positional relationships shown in the accompanying drawings, and the term "on..." means directly or indirectly supported by... elements.

[0029] It should be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical, electrical, or mutually communicative connections; direct or indirect connections through an intermediary; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0030] like Figure 1-5As shown, a dual-cavity cooking device 100 includes a housing 8, within which an upper cavity 1 and a lower cavity 2 are disposed. The upper cavity 1 has a first inner pot 11, and the lower cavity 2 has a second inner pot 21. The upper cavity 1 is located above the lower cavity 2. The dual-cavity cooking device 100 also includes a steam generator 3 and a water tank 4. A second connecting pipe 32 is provided at the bottom of the steam generator 3 and connected to the water tank 4 via a pump assembly 5. This arrangement allows excess water in the steam generator 3 to be re-transferred to the water tank 4, effectively preventing the growth of bacteria and microorganisms within the steam generator 3 and avoiding corrosion. It also prevents the generation of large amounts of wet steam during use of the steam oven, ensuring that the steam heat exchange efficiency meets the required standards.

[0031] As an example of the present invention, a first connecting pipe 31 and a second connecting pipe 32 are respectively provided at the top and bottom of the steam generating device 3. The pump assembly 5 includes a first pump 51 and a second pump 52. The first pump 51 is located between the water tank 4 and the first connecting pipe 31, and the second pump 52 is located between the water tank 4 and the second connecting pipe 32. This arrangement enables the first pump 51 to transport water from the water tank 4 to the steam generating device 3. After the steaming and baking operation is completed, the second pump 52 is used to drain all the water in the steam generating device 3 back into the water tank 4, thereby ensuring that no water remains in the steam generating device 3.

[0032] As an example of the present invention, a mounting plate 15 is provided at the top of the upper cavity 1, the water tank 4 is mounted on the mounting plate 15, the steam generator 3 is located at the rear of the upper cavity 1 and at the top of the lower cavity 2, and the steam generator 3 is provided with an outlet pipe 33 for delivering steam into the lower cavity 2. This arrangement is compact, fully utilizes the internal space of the dual-cavity cooking device 100, and is easy to manufacture and process.

[0033] Preferably, the mounting plate 15 is provided with a first air guide 13, a first fan 14, and an electric control board 7. A first air duct is formed between the first air guide 13 and the mounting plate 15, and a magnetron 9 is disposed within the first air duct. The electric control board 7 is located between the water tank 4 and the first fan 14, and the first fan 14 is located at the inlet of the first air duct. This arrangement allows the first fan 14 to blow air toward the magnetron 9 to dissipate heat, while also driving air flow near the electric control board 7, thereby facilitating heat dissipation from the electric control board 7.

[0034] The upper cavity 1 also includes a waveguide box, a stir plate, etc., the specific structure and assembly relationship of which are all existing technologies and will not be described in detail here. As an example of the present invention, the dual-cavity cooking device 100 also includes a first bracket 6, which is located at the rear of the upper cavity 1 and the top of the lower cavity 2 and is used to fix the steam generating device 3. A first opening is provided on the front side of the first inner pot 11, and the upper cavity 1 also includes a first door assembly 12, which is openably provided at the first opening.

[0035] Preferably, the first air duct is connected to the first inner container 11. This arrangement enables a single first fan 14 to drive airflow into the first inner container 11, thereby discharging the fumes generated within the first inner container 11. Preferably, a frequency converter is provided within the first air duct, located on the air inlet side of the magnetron 9. This arrangement allows the first fan 14 to simultaneously dissipate heat from the frequency converter and the magnetron 9, thereby meeting experimental requirements.

[0036] A second opening is provided on the front side of the second inner container 21. The lower chamber 2 further includes a second door assembly 22, which is openably and closably provided at the second opening. The second door assembly 22 is provided with a handle 221. When the second door assembly 22 needs to be opened or closed, the user can complete the opening or closing action by pulling the handle 221, thereby making the opening or closing of the second door assembly 22 more convenient.

[0037] Preferably, a door body air duct 223 is provided in the second door assembly 22, an air inlet 222 is provided at the bottom of the door body air duct 223, and an air outlet 224 connected to the intermediate air duct 271 is provided at the top of the door body air duct 223; a top plate 28 is provided on the top of the lower cavity 2, and a partition 27 and a second air guide cover 26 are provided on the side of the top plate 28 away from the second inner tank 21 in sequence, an intermediate air duct 271 is formed between the partition 27 and the top plate 28, an outlet air duct 272 is formed between the partition 27 and the second air guide cover 26, the inlet end of the intermediate air duct 271 is arranged opposite to the air outlet 224, and a second fan 23 is provided at the outlet end of the intermediate air duct 271 for supplying air to the outlet air duct 272.

[0038] This arrangement utilizes a second fan 23 to direct cool air from the outside into the door duct 223 via the air inlet 222, and then into the intermediate duct 271 and the outlet duct 272. As the cool air flows through the intermediate duct 271 and the outlet duct 272, it dissipates heat generated by the lower chamber 2. This creates a double barrier between the upper and lower chambers 1 and 2, preventing heat from being transferred upward from the lower chamber 2 to the upper chamber 1. Furthermore, the cool air entering the door duct 223 lowers the surface temperature of the second door assembly 22, preventing accidents such as burns.

[0039] Preferably, a third fan 24 and a heating assembly 25 are disposed at the rear of the second inner pot 21. The heating assembly 25 is located on at least one of the top, bottom, or rear of the second inner pot 21, and the third fan 24 is located at the rear of the second inner pot 21. This arrangement ensures that food is evenly heated from multiple directions, preventing food from being overheated on one side while undercooked on the other, thereby improving the taste and quality of the food. Furthermore, the third fan 24 creates a hot air circulation within the second inner pot 21, further enhancing the heating effect, making the food heat more evenly and shortening cooking time.

[0040] 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 double-cavity cooking device, comprising a shell (8), wherein an upper cavity (1) and a lower cavity (2) are arranged in the shell (8), wherein the upper cavity (1) has a first inner pot (11), and the lower cavity (2) has a second inner pot (21), and the upper cavity (1) is located above the lower cavity (2), characterized in that: The dual-cavity cooking device (100) further comprises a steam generating device (3) and a water tank (4); a second connecting pipe (32) is provided at the bottom of the steam generating device (3); the second connecting pipe (32) is connected to the water tank (4) via a pump assembly (5) and is used to reversely transport water in the steam generating device (3) to the water tank (4).

2. The dual-cavity cooking device according to claim 1, characterized in that: The steam generating device (3) is located at the rear of the upper cavity (1) and the top of the lower cavity (2); the steam generating device (3) is provided with a first connecting pipe (31); the pump assembly (5) includes a first pump (51) and a second pump (52); the first pump (51) is provided between the water tank (4) and the first connecting pipe (31); and the second pump (52) is provided between the water tank (4) and the second connecting pipe (32).

3. The dual-cavity cooking device according to claim 2, characterized in that: The steam generating device (3) is provided with an outlet pipe (33) for conveying steam into the lower cavity (2).

4. The dual-cavity cooking device according to claim 1, characterized in that: A mounting plate (15) is provided on the top of the upper cavity (1), a first air guide cover (13) and a first fan (14) are provided on the mounting plate (15), a first air duct is formed between the first air guide cover (13) and the mounting plate (15), a magnetron (9) is provided in the first air duct, and the first fan (14) is located at the inlet end of the first air duct.

5. The dual-cavity cooking device according to claim 4, characterized in that: An electric control board (7) is arranged on the mounting plate (15), and the water tank (4) is located on a side of the electric control board (7) away from the first fan (14).

6. The dual-cavity cooking device according to claim 1, characterized in that: A second opening is provided on the front side of the second liner (21), and the lower cavity (2) further comprises a second door assembly (22), and the second door assembly (22) is provided at the second opening in an openable and closable manner.

7. The dual-cavity cooking device according to claim 6, characterized in that: A door body air duct (223) is provided in the second door assembly (22), an air inlet (222) is provided at the bottom of the door body air duct (223), and an air outlet (224) is provided at the top of the door body air duct (223).

8. The dual-cavity cooking device according to claim 7, characterized in that: A top plate (28) is provided on the top of the lower cavity (2), and a partition plate (27) and a second air guide cover (26) are sequentially provided on the side of the top plate (28) away from the second inner liner (21); an intermediate air duct (271) is formed between the partition plate (27) and the top plate (28), and an air outlet duct (272) is formed between the partition plate (27) and the second air guide cover (26); the inlet end of the intermediate air duct (271) is connected to the air outlet (224), and a second fan (23) is provided at the outlet end of the intermediate air duct (271) for conveying air to the air outlet duct (272).

9. The dual-cavity cooking device according to claim 8, characterized in that: The air outlet duct (272) and the intermediate duct (271) are respectively located on the upper and lower sides of the partition (27), and the flow directions of some air are opposite.

10. The dual-cavity cooking device according to claim 1, characterized in that: The second inner container (21) is provided with a third fan (24) and a heating component (25), wherein the heating component (25) is located on at least one of the top, bottom or rear of the second inner container (21), and the third fan (24) is located at the rear of the second inner container (21) for driving hot air circulation.

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