A cooking assembly with a baking function, a cooking device and a cooking all-in-one

Abstract

The application relates to a cooking assembly with a baking function, a cooking device and a cooking integrated machine, which comprise an inner container, the back side of the inner container is respectively provided with a hot air chamber and a hot air machine, and a hot air circulation airflow is formed in the inner cavity of the inner container, and the application is characterized in that the cooking assembly further comprises a centrifugal impeller which can be horizontally arranged in the inner container and can be driven to rotate by the hot air circulation airflow; a rotating disc is horizontally installed on the rotating shaft of the centrifugal impeller and is used for placing food, and the setting height of the rotating disc corresponds to the cooking layer of the inner container. In the cooking process, the food can be horizontally rotated in the inner container, so that the food can be uniformly heated, the cooking effect on the food is improved, the centrifugal impeller does not need to be driven by another driving device, the energy consumption of the device is not additionally increased, the centrifugal impeller is synchronously rotated when the cooking device works, the rotating speed of the centrifugal impeller is proportional to the flow speed of the hot air circulation airflow, and the uniform heating of the food can be better ensured.

Description

Technical Field

[0001] This invention relates to the field of cooking appliances, and more particularly to a cooking component with a baking function, a cooking appliance, and a cooking all-in-one machine. Background Technology

[0002] Cooking appliances with baking functions (such as ovens, steam ovens, etc.) utilize hot air circulation formed within the inner cavity to heat food. Specifically, a hot air fan is installed at the back of the inner cavity, and a hot air baffle is provided on the rear side of the inner cavity. This hot air baffle has an air inlet and an air outlet surrounding the air inlet, forming a hot air chamber with the back panel of the inner cavity. The fan blades of the aforementioned hot air fan are located in this hot air chamber and face the air inlet of the aforementioned hot air baffle, and a back heating tube is provided around the outer periphery of the fan blades. Examples include Chinese invention patent No. ZL202010218559.7 (authorization announcement No. CN111345702B) entitled "An Oven with Uniform Temperature Field" and Chinese invention patent No. ZL202011064662.7 (authorization announcement No. CN112244660B) entitled "A Hot Air Structure for Cooking Equipment and an Oven with the Structure," etc.

[0003] When the cooking device is working, the hot air blower rotates, and the gas in the inner cavity is drawn into the hot air chamber through the air inlet by the suction of the fan blades. Meanwhile, the hot air in the hot air chamber flows back into the inner cavity through the air outlet under the centrifugal force of the fan blades, thus creating a hot air circulation within the inner cavity. During cooking, a baking tray containing food is placed horizontally on the cooking layers of the inner cavity (generally four cooking layers; in single-layer cooking, the second layer is optimal, while in double-layer cooking, the second and fourth layers are optimal). The airflow driven by the hot air circulation acts on the food in the baking tray, heating it. However, the existing hot air circulation mode results in uneven heat distribution within the inner cavity, preventing the food from being heated evenly and affecting the cooking effect. Summary of the Invention

[0004] The first technical problem to be solved by the present invention is to provide a cooking component with a baking function that can improve the uniformity of the temperature field inside the inner pot and achieve uniform heating of food, in contrast to the prior art.

[0005] The second technical problem to be solved by the present invention is to provide a cooking component with a baking function that can achieve uniform heating of food without the need for a separate driving device, in contrast to the prior art.

[0006] The third technical problem to be solved by the present invention is to provide a cooking apparatus having the above-mentioned cooking components, in contrast to the prior art.

[0007] The fourth technical problem to be solved by the present invention is to provide a cooking appliance with the above-mentioned cooking device in contrast to the prior art.

[0008] The technical solution adopted by the present invention to solve at least one of the above-mentioned technical problems is as follows: a cooking component with a baking function, including an inner pot, wherein a hot air chamber and a hot air blower are respectively provided on the back side of the inner pot, and a hot air circulation airflow is formed in the inner cavity of the inner pot, characterized in that it further includes...

[0009] The centrifugal impeller can be horizontally arranged in the inner liner and can be driven to rotate by the hot air circulation airflow.

[0010] A turntable, horizontally mounted on the shaft of the centrifugal impeller, is used to hold food, and the height of the turntable corresponds to the cooking layer of the inner pot.

[0011] Furthermore, it also includes a support plate that can be placed horizontally on the cooking layer of the inner pot. The centrifugal impeller is mounted on the outer bottom surface of the support plate via its shaft, and the turntable is located within the support plate. This allows for the detachable installation of the centrifugal impeller and turntable within the inner pot cavity. Removing the support plate from the inner pot immediately restores the interior to its original state, while ensuring the centrifugal impeller is securely positioned within the inner pot cavity and facilitating the corresponding placement of the turntable with the cooking layer of the inner pot.

[0012] Furthermore, the first air inlet of the centrifugal impeller faces upwards, and a vent is provided on the bottom wall of the support plate opposite to the first air inlet. A vertically extending ventilation gap exists between the bottom surface of the turntable and the inner bottom surface of the support plate, communicating with the ventilation gap. In this way, when the centrifugal impeller is rotating, the gas in the ventilation gap can enter the centrifugal impeller through the ventilation gap, thereby promoting the downward flow of hot air above the turntable, enhancing the heating of the bottom of the food, and improving the uniformity of the temperature field at the turntable. Simultaneously, the negative pressure drive of the centrifugal impeller also prevents heat from accumulating in the ventilation gap and causing overheating of the bottom of the food.

[0013] Furthermore, the vent is formed by a series of circumferentially spaced ventilation holes centered on the aforementioned rotating shaft. When the centrifugal impeller is rotating, the negative pressure at its center is at its maximum, thereby efficiently driving the airflow up and down at the turntable, which in turn improves the cooking efficiency of food and enhances the heating effect on the bottom of the food.

[0014] Furthermore, a heating device is installed on the support plate. Cooking appliances with a baking function generally use a combination of heat radiation and hot air circulation for heating. Therefore, heating elements are installed on the top and bottom of the inner pot, resulting in relatively more heat at the top and bottom, leading to uneven temperature distribution. Installing a heating device can compensate for the relatively insufficient heat in the middle of the inner pot, improving the uniformity of the temperature distribution. In addition, the rotation of the centrifugal impeller effectively prevents overheating of the food at the bottom due to the heating device.

[0015] Furthermore, the heating device is a heating wire installed on the bottom wall of the aforementioned support plate. The heating wire has a simple structure and is easy to install on the support plate.

[0016] Furthermore, the heating wires extend along the left-right direction of the support plate and are spaced apart along the front-back direction of the support plate. This allows for better heating of the middle part of the inner cavity of the inner liner, thereby improving the uniformity of the temperature field between the upper and lower parts of the inner liner.

[0017] Furthermore, the heating wires are arranged at a higher density at the front end of the support plate than at the rear end. This improves the uniformity of the temperature field both vertically and horizontally within the inner liner, thus addressing the problem of insufficient heat near the door in existing technologies and resolving the issue of inadequate heating of food near the door.

[0018] Furthermore, two centrifugal impellers are arranged on the support plate at a left-right interval, and the two centrifugal impellers rotate in opposite directions. With two centrifugal impellers on the left and right, two turntables are also installed, thereby increasing the amount of food that can be cooked. Also, since the hot air chamber generally exhausts air into the inner cavity from the left and right sides, the two centrifugal impellers not only fully utilize the hot air circulation formed in the inner cavity, but also allow each impeller to rotate smoothly horizontally, creating stable up-and-down airflow on the left and right sides of the middle of the inner cavity.

[0019] Furthermore, the lateral distance between the two centrifugal impellers is greater than or equal to 3 / 4 of the diameter of each impeller and less than 1 / 2 of the lateral length of the support plate. This ensures normal airflow from each impeller, guarantees the rotation of each impeller, and ensures the vertical airflow driven by each impeller.

[0020] Furthermore, each turntable is circular and centrally positioned within the support plate. The diameter of each turntable is less than or equal to 2 / 3 of the front-to-back width of the support plate and greater than or equal to 2 / 5 of the left-to-right length. The lateral distance between two turntables is greater than or equal to 1 / 10 of their respective diameters and less than or equal to 1 / 5 of their respective diameters. This design maximizes the food-carrying capacity of each turntable by fully utilizing the internal space of the support plate. It also ensures that each turntable can rotate normally within the support plate and creates a downward airflow between the two turntables, preventing heat accumulation and overheating of the food's inner surface.

[0021] Furthermore, the outer periphery of the inner bottom surface of the support plate is concave downwards to form a liquid collection groove. This allows heat generated during cooking to be collected in the liquid collection groove, preventing liquid from flowing into the centrifugal impeller through the vents.

[0022] The technical solution adopted to further solve the third technical problem mentioned above is: a cooking device, characterized in that it includes a cooking component with a baking function as described above.

[0023] The technical solution adopted to further solve the fourth technical problem mentioned above is: a cooking appliance, characterized in that it includes the cooking device as described above.

[0024] Compared with the prior art, the advantages of the present invention are as follows: a centrifugal impeller is horizontally arranged in the inner pot, which is driven to rotate by the hot air circulation in the inner cavity of the inner pot, and a food turntable is installed on the rotating shaft of the centrifugal impeller. In this way, during the cooking process, the food rotates horizontally in the inner pot by the rotation of the turntable, thereby ensuring that the food is heated evenly and improving the cooking effect. Furthermore, the centrifugal impeller does not require a separate drive device, so it does not increase the energy consumption of the device. Moreover, the centrifugal impeller rotates synchronously when the cooking device is working, and the rotation speed of the centrifugal impeller is proportional to the flow rate of the hot air circulation, thereby better ensuring the even heating of the food. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the cooking appliance in an embodiment of the present invention;

[0026] Figure 2 This is a cross-sectional view of the cooking appliance in an embodiment of the present invention;

[0027] Figure 3 This is a partial structural diagram of the cooking components (centrifugal impeller, turntable, and support plate) in an embodiment of the present invention;

[0028] Figure 4 for Figure 3 A schematic diagram of the structure from another direction;

[0029] Figure 5 This is a cross-sectional view of a partial structure of the cooking component in an embodiment of the present invention (centrifugal impeller, turntable, and support plate);

[0030] Figure 6 This is a schematic diagram of the support disk structure in an embodiment of the present invention;

[0031] Figure 7 This is a schematic diagram of the inner liner in an embodiment of the present invention. Detailed Implementation

[0032] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0033] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," 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 invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Since the embodiments disclosed in this invention can be arranged in different directions, these terms indicating direction are only for illustration and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity. In addition, features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0034] like Figures 1-7 As shown, a cooking appliance includes a cooking device 101 and a cooktop 102 mounted on the cooking device 101. The cooking device 101 includes a cooking component with a baking function. Further, the cooking component with the baking function includes an inner liner 1, a centrifugal impeller 5, and a turntable 7. A hot air chamber 30 and a hot air blower 2 are respectively provided on the back side of the inner liner 1, forming a hot air circulation flow within the inner cavity of the inner liner 1.

[0035] Specifically, the hot air blower 2 is installed on the back plate of the inner liner 1, and a hot air baffle 3 is provided on the rear side of the inner cavity of the inner liner 1. The hot air baffle 3 has an air inlet 31 and an air outlet 32 ​​surrounding the air inlet 31, forming a hot air chamber 30 with the back plate of the inner liner 1. The fan blade 21 of the hot air blower 2 is located in the hot air chamber 30 and faces the air inlet 31 of the hot air baffle 3, and a back heating pipe 42 is provided around the outer periphery of the fan blade 21. In this embodiment, the air inlet 31 is circular in shape. In the working state, the gas in the inner liner 1 enters the hot air chamber 30 through the air inlet 31 under the suction of the fan blade 21, and the hot air in the hot air chamber 30 flows back into the inner liner 1 through the air outlet 32 ​​under the centrifugal force of the fan blade 21, thereby forming the hot air circulation airflow in the inner cavity of the inner liner 1.

[0036] Furthermore, the centrifugal impeller 5 can be horizontally arranged in the inner liner 1 and can be driven to rotate by the hot air circulation airflow (the hot air circulation airflow includes: the airflow at the air inlet 31 of the hot air baffle 3 driven by the negative pressure generated by the rotation of the centrifugal impeller 5; the airflow driven by the centrifugal force of the centrifugal impeller 5, the air outlet 32, and the airflow guided by the left and right inner sides of the inner liner 1). The turntable 7 is horizontally installed on the rotating shaft 51 of the centrifugal impeller 5 and is used to place food, and the height of the turntable 7 corresponds to the cooking layer of the inner liner 1. In this way, during the cooking process, the food rotates horizontally in the inner liner 1 by the rotation of the turntable 7, so that the food can be heated evenly and the cooking effect can be improved. Moreover, the centrifugal impeller 5 does not require a separate driving device to drive it, so it will not increase the energy consumption of the device. Furthermore, the centrifugal impeller 5 rotates synchronously when the cooking device is working, and the rotation speed of the centrifugal impeller 5 is proportional to the flow rate of the hot air circulation airflow, so as to better ensure the even heating of the food. In this embodiment, the cooking layer of the inner pot 1 is composed of mounting protrusions 11 protruding on the left and right inner sides of the inner pot 1, and each mounting protrusion 11 extends in the front-back direction.

[0037] Preferably, the cooking assembly further includes a support plate 6, which can be placed horizontally on the cooking layer of the inner pot 1. The centrifugal impeller 5 is mounted on the outer bottom surface of the support plate 6 via its shaft 51, and the turntable 7 is located within the support plate 6. This allows for the detachable installation of the centrifugal impeller 5 and the turntable 7 within the inner cavity of the inner pot 1. Removing the support plate 6 from the inner pot 1 immediately restores the interior of the inner pot 1 to its original state, thus not affecting other cooking methods of the inner pot 1 (e.g., placing a regular baking pan directly in the inner pot). Simultaneously, it ensures that the centrifugal impeller 5 is stably positioned within the inner cavity of the inner pot 1 and facilitates the corresponding placement of the turntable 7 with the cooking layer of the inner pot 1. That is, placing the support plate 6 on the cooking layer of the inner pot ensures that the turntable 7 is positioned on the corresponding cooking layer.

[0038] Furthermore, the first air inlet 50 of the centrifugal impeller 5 faces upward, and a vent 61 opposite to the first air inlet 50 is provided on the bottom wall of the support plate 6. A ventilation gap 9 extending vertically and communicating with the ventilation gap 61 exists between the bottom surface of the turntable 7 and the inner bottom surface of the support plate 6. Thus, when the centrifugal impeller 5 is rotating, the gas in the ventilation gap can enter the centrifugal impeller 5 through the ventilation gap 61, thereby promoting the downward flow of hot air above the turntable 7, enhancing the heating of the bottom of the food, and improving the uniformity of the temperature field at the turntable 7. Simultaneously, the negative pressure drive of the centrifugal impeller 5 can also prevent heat from accumulating in the ventilation gap 9, thus avoiding overheating of the bottom of the food. Preferably, in this embodiment, the ventilation gap 61 is formed by vent holes 611 evenly spaced circumferentially around the rotating shaft 51. When the centrifugal impeller 5 is rotating, the negative pressure at its center is at its maximum. The above-described configuration of the vent 61 efficiently drives the airflow up and down at the turntable 7, thereby improving cooking efficiency and enhancing the heating effect on the bottom of the food. Preferably, in this embodiment, the outer periphery of the inner bottom surface of the support plate 6 is concave downwards to form a liquid collection groove 62. This allows the heat generated during cooking to be collected in the liquid collection groove 62, preventing liquid from flowing into the centrifugal impeller 5 through the vent 61.

[0039] Furthermore, a heating device is installed on the aforementioned support plate 6. Cooking appliances with baking functions generally use a combination of heat radiation and hot air circulation for heating. Therefore, in this embodiment, heating tubes 41 are installed on the inner top surface and the bottom of the inner pot 1, respectively, resulting in relatively more heat at the top and bottom of the inner pot 1, leading to uneven temperature distribution. Therefore, installing a heating device can compensate for the relatively insufficient heat in the middle of the inner pot 1, improve the uniformity of the temperature distribution between the upper and lower parts of the inner pot 1, and, in conjunction with the rotation of the centrifugal impeller 5, effectively prevent the food from being overheated at the bottom due to the installation of the heating device.

[0040] Furthermore, to simplify the structure of the heating device and facilitate its installation on the support plate 6, preferably, the heating device is a heating wire 8 installed on the bottom wall of the support plate 6. In this embodiment, the heating wire 8 is embedded in the bottom wall of the support plate 6. Further, in this embodiment, the heating wire 8 extends along the left-right direction of the support plate 6 and is spaced apart along the front-back direction of the support plate 6. This allows for better heating of the middle part of the inner cavity of the inner liner 1, thereby improving the uniformity of the temperature field between the upper and lower parts of the inner liner 1. Preferably, the density of the heating wire 8 at the front end of the support plate 6 is greater than that at the rear end. This improves both the uniformity of the temperature field between the upper and lower parts of the inner liner 1 and the uniformity of the temperature field in the front-back direction, compensating for the problem of insufficient heat near the door 12 of the inner liner 1 in the prior art, and thus solving the problem of insufficient heating near the food door 12. Specifically, in this embodiment, the spacing between adjacent heating wires 8 at the rear end of the support plate 6 is 30mm, while the spacing between adjacent heating wires 8 at the front end of the support plate 6 is 10mm. In addition, in this embodiment, the rear end of the support plate 6 has a plug 63, and the rear wall of the inner liner 1 is provided with a socket (not shown) for the plug 63 to be inserted. When the support plate 6 is inserted into the socket, the plug 63 is inserted into the socket, which can realize the power supply to each heating wire 8 on the support plate 6.

[0041] Furthermore, in this embodiment, two centrifugal impellers 5 are arranged on the support plate 6 at left and right intervals, and the two centrifugal impellers 5 rotate in opposite directions. With two centrifugal impellers 5 arranged on the left and right, two turntables 7 are also arranged simultaneously, thereby increasing the amount of food that can be cooked. In addition, the hot air chamber 30 generally exhausts air into the inner cavity of the inner liner 1 from the left and right sides. The arrangement of two centrifugal impellers 5 can make full use of the hot air circulation formed in the inner cavity of the inner liner 1, and also allow each centrifugal impeller 5 to rotate smoothly horizontally, forming a smooth up and down airflow on the left and right sides of the middle of the inner liner 1.

[0042] Furthermore, in this embodiment, the lateral distance between the two centrifugal impellers 5 is greater than or equal to 3 / 4 of the diameter of each centrifugal impeller 5 and less than 1 / 2 of the lateral length of the support plate 6, thereby ensuring normal airflow from each centrifugal impeller 5, ensuring the rotation of each centrifugal impeller 5, and ensuring the vertical airflow driven by each centrifugal impeller 5. Preferably, the projection of the inner end of each centrifugal impeller 5 onto the hot air baffle 3 is located on the left and right sides of the air inlet 31, thereby allowing the incoming airflow formed at the air inlet 31 to better act on each centrifugal impeller 5. In addition, each of the aforementioned turntables 7 is circular and centrally located in the support plate 6, and the diameter of each turntable 7 is less than or equal to 2 / 3 of the front-to-back width of the support plate 6 and greater than or equal to 2 / 5 of the lateral length of the support plate 6, and the lateral distance between the two turntables 7 is greater than or equal to 1 / 10 of the diameter of each turntable 7 and less than or equal to 1 / 5 of the diameter of each turntable 7. On the one hand, it can make full use of the internal space of the support plate 6 to maximize the food carrying capacity of each turntable 7. On the other hand, it can ensure that each turntable 7 can rotate normally in the support plate 6 and form an airflow from top to bottom between the two turntables 7, so as to avoid heat accumulation between the two and cause the food on the inside of each turntable 7 to be overheated.

Claims

1. A cooking assembly with a baking function, comprising an inner container (1), the back side of the inner container (1) is respectively provided with a hot air chamber (30) and a hot air machine (2), and a hot air circulation airflow is formed in the inner cavity of the inner container (1), characterized in that, Further comprising A centrifugal impeller (5) horizontally arranged in the inner container (1) and driven to rotate by the hot air circulation flow; A rotary disc (7) horizontally mounted on the rotating shaft (51) of the centrifugal impeller (5) and used for placing food, and the arrangement height of the rotary disc (7) corresponds to the cooking layer of the inner container (1); Further comprising a support disc (6) horizontally arranged on the cooking layer of the inner container (1), and the centrifugal impeller (5) is mounted on the outer bottom surface of the support disc (6) through the rotating shaft (51), and the rotary disc (7) is located in the support disc (6); The first air inlet (50) of the centrifugal impeller (5) faces upward, and the bottom wall of the support disc (6) is provided with a ventilation opening (61) opposite to the first air inlet (50), and the bottom surface of the rotary disc (7) and the inner bottom surface of the support disc (6) have a ventilation gap (9) extending upward and downward and communicating with the ventilation opening (61); The centrifugal impeller (5) is two and is arranged on the support disc (6) in a left-right interval, and the rotating directions of the two centrifugal impellers (5) are opposite.

2. The cooking assembly with a grill function according to claim 1, characterized in that, The ventilation opening (61) is arranged by the ventilation holes (611) arranged in a circumferential interval and centered on the rotating shaft (51).

3. The cooking assembly with a grill function according to claim 1 or 2, characterized in that, The support disc (6) is provided with a heating device.

4. The cooking assembly with a grill function according to claim 3, wherein, The heating device is a heating wire (8) mounted on the bottom wall of the support disc (6).

5. The cooking assembly with a grill function according to claim 4, wherein, The heating wire (8) extends in the left-right direction of the support disc (6) and is arranged in an interval in the front-rear direction of the support disc (6).

6. The cooking assembly with a grill function according to claim 5, wherein, The arrangement density of the heating wire (8) at the front end of the support disc (6) is greater than that at the rear end of the support disc (6).

7. The cooking assembly having a broiling function as claimed in claim 1, wherein, The left-right interval between the two centrifugal impellers (5) is greater than or equal to 3 / 4 of the diameter of each centrifugal impeller (5) and less than 1 / 2 of the left-right length of the support disc (6).

8. The cooking assembly with a broiling function of claim 1, wherein, Each rotary disc (7) is circular and centrally arranged in the support disc (6), and the diameter of each rotary disc (7) is less than or equal to 2 / 3 of the front-rear width of the support disc (6) and greater than or equal to 2 / 5 of the left-right length of the support disc (6), and the left-right interval between the two rotary discs (7) is greater than or equal to 1 / 10 of the diameter of each rotary disc (7) and less than or equal to 1 / 5 of the diameter of each rotary disc (7).

9. The cooking assembly with a grill function according to claim 1 or 2, characterized in that, The outer periphery of the inner bottom surface of the support disc (6) is concave downward in a circumferential direction to form a liquid collecting groove (62).

10. A cooking apparatus characterized by, The cooking assembly with a baking function as claimed in any one of claims 1-9.

11. A cooking all-in-one machine, characterized in that, The cooking device as claimed in claim 10.

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