Cooking equipment

By installing hot air components on the side, top, or bottom of the cooking equipment, multi-directional hot air delivery is achieved, solving the problems of uneven heating and low efficiency in existing cooking equipment, and achieving better food heating effect.

CN121621733APending Publication Date: 2026-03-10GUANGDONG MIDEA KITCHEN APPLIANCES MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-08-30
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

Existing cooking equipment suffers from low heating efficiency and uneven heating when heating food, especially in multi-layer baking pans, where it is difficult to heat food thoroughly.

Method used

Design a cooking device that employs hot air components on at least two sides of the housing. By arranging hot air components on the sides and top or two non-opposite sides, hot air can be delivered into the cooking cavity in multiple directions. This includes arranging hot air components on the sides, top, or bottom of the housing to ensure that the airflow flows in the up-down, left-right, or front-back directions, thereby heating the food from multiple angles.

Benefits of technology

It improves cooking results, allowing for more thorough heating of ingredients, especially in multi-layered baking pans, enhancing heating efficiency and evenness.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides cooking equipment which comprises a box body, and the box body comprises a cooking cavity; the at least two hot air assemblies are arranged in the box body, located on at least two sides of the box body and used for conveying hot air into the cooking cavity in at least two directions. According to the cooking equipment disclosed by the invention, the at least two hot air assemblies are arranged in the box body, so that the air flow in the box body can flow in the up-down direction and the left-right direction or the front-back direction, the food materials can be heated from multiple angles, and the cooking effect is improved.
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Description

Technical Field

[0001] This invention relates to the field of cooking appliances technology, and more specifically, to a cooking device. Background Technology

[0002] Currently, related technologies typically place the heating element and fan at the back of the oven. Airflow is controlled by adjusting the fan's inlet and outlet to achieve even heating of ingredients like fries. However, because the heating element and fan are only located at the back, the airflow cannot create an upward airflow that penetrates the food effectively, instead flowing only along the surface. Furthermore, the back location of the heating element obstructs much of the radiated heat, resulting in low heating efficiency. Air fryers, on the other hand, place the fan and heating element at the top. A centrifugal fan draws air axially and exits radially, creating an upward airflow along the wall to heat the food. However, the airflow generated in an air fryer is easily blocked by solid baking trays or similar structures, preventing thorough heating and making it unsuitable for multi-tiered baking trays.

[0003] Therefore, how to design a cooking device that can improve cooking results and fully heat ingredients has become an urgent problem to be solved. Summary of the Invention

[0004] The present invention aims to at least solve the problem of poor cooking performance of cooking equipment.

[0005] Therefore, a first aspect of the present invention provides a cooking apparatus.

[0006] In view of this, a first aspect of the present invention provides a cooking device, comprising: a housing including a cooking cavity; and at least two hot air assemblies disposed within the housing and located on at least two sides of the housing for delivering hot air into the cooking cavity in at least two directions.

[0007] The cooking device provided by this invention includes a housing and at least two hot air assemblies. The at least two hot air assemblies are disposed within the housing and at least on both sides of the housing. That is, when there are at least two hot air assemblies, one hot air assembly can be disposed on the side of the housing, and another hot air assembly can be disposed on the top or bottom of the housing. This allows the food inside the housing to be heated by the hot air assemblies disposed on the side and top of the housing. Alternatively, one hot air assembly can be disposed on each of two non-opposite sides of the housing. It is understood that because this application can deliver hot air into the cooking cavity in at least two directions, i.e., hot air assemblies can be disposed on both the side and top, this application enables the airflow inside the housing to flow vertically and horizontally or forward and backward, thus heating the food from multiple angles and improving the cooking effect. For example, when the cooking device has multiple baking trays, if hot air assemblies are only disposed on the top or bottom, the vertical airflow will be blocked by the baking trays, and the food cannot be sufficiently heated. Because this application has hot air components on at least two sides, it can fully heat the food.

[0008] In this application, at least two hot air components can work simultaneously, or one of them can work at a time.

[0009] The cooking apparatus provided by the present invention may also have the following additional technical features:

[0010] In some embodiments, optionally, the housing is provided with an opening that communicates with the cooking cavity; at least two hot air assemblies include a first hot air assembly and a second hot air assembly, the first hot air assembly is disposed on a first side of the housing and is disposed opposite to the opening, the first hot air assembly is used to deliver hot air into the cooking cavity in a first direction; the second hot air assembly is disposed on a second side of the housing, the second hot air assembly is used to deliver hot air into the cooking cavity in a second direction.

[0011] In this embodiment, the housing has an opening that communicates with the cooking cavity, allowing ingredients and baking trays to be placed into the cooking cavity through the opening. At least two hot air components are included, including a first hot air component and a second hot air component. The first hot air component is located on a first side of the housing, opposite the opening, and is capable of delivering hot air into the cooking cavity along a first direction. The second hot air component is located on a second side of the housing, and is capable of delivering hot air into the cooking cavity along a second direction. By configuring the first and second hot air components to deliver hot air along both directions, hot air delivery from multiple directions is achieved, ensuring that the ingredients can be heated from multiple directions and improving the cooking effect.

[0012] In some embodiments, optionally, the first direction is the front-to-back direction of the housing, and the first hot air assembly is disposed on the rear side of the housing; the second direction is the up-to-down direction of the housing, and the second hot air assembly is disposed on the upper side of the housing.

[0013] In this embodiment, the first direction is the front-to-back direction of the chamber, and the first hot air assembly is located on the rear side of the chamber. The second direction is the vertical direction of the chamber, and the second hot air assembly is located on the upper side of the chamber. This arrangement, with the first hot air assembly located on the rear side of the chamber and the second hot air assembly located on the top of the chamber, achieves hot air delivery from both the rear and top sides, which is more conducive to heating the food, especially when there are multiple baking trays inside the cooking chamber, the cooking effect is particularly noticeable.

[0014] In some embodiments, the hot air assembly may optionally include: a fan shroud disposed on one side of the housing, forming a flow guide space with the inner wall of the housing; a hot air fan disposed within the flow guide space; a heating device disposed corresponding to the hot air fan, used to heat the air passing through the hot air fan; the fan shroud is provided with a first air hole and a second air hole, the first air hole being disposed corresponding to the air inlet area of ​​the hot air fan, and the second air hole being disposed corresponding to the air outlet area of ​​the hot air fan.

[0015] In this embodiment, the hot air assembly includes a fan shroud, a hot air fan, and a heating device. The fan shroud is disposed on one side of the housing, forming a flow guide space with the inner wall of the housing. The hot air fan is disposed within the flow guide space. The heating device is disposed corresponding to the hot air fan and is capable of heating the air passing through the hot air fan. The fan shroud is provided with a first air hole and a second air hole. The first air hole is disposed corresponding to the air inlet area of ​​the hot air fan, and the second air hole is disposed corresponding to the air outlet area of ​​the hot air fan. This arrangement, by covering the hot air fan with the fan shroud, can protect the hot air fan. Moreover, the fan shroud also facilitates the guidance of airflow from the hot air fan, allowing air to enter the fan shroud through the specific first air hole and exit the fan shroud through the second air hole, avoiding the scattering of air entering or exiting the flow guide space, thereby improving the airflow guiding effect.

[0016] In some embodiments, the heating device may optionally be arranged around a hot air fan.

[0017] In this embodiment, the heating device is arranged around the hot air fan, so that the heating device and the hot air fan are on the same plane, thereby reducing the overall thickness of the hot air assembly and increasing the cooking space of the cooking cavity.

[0018] In some embodiments, the hot air fan may optionally include one or a combination of a centrifugal fan and an axial fan.

[0019] In some embodiments, the ratio of the outer diameter of the first air vent to the outer diameter of the hot air fan is optionally greater than or equal to 0.3 and less than or equal to 2.

[0020] In this embodiment, the ratio of the outer diameter of the first air hole to the outer diameter of the hot air fan is greater than or equal to 0.3 and less than or equal to 2, which can effectively ensure the efficiency of air suction.

[0021] In some embodiments, the first air vent is optionally located in the central region of the shroud, and the second air vent is located around the first air vent.

[0022] In this embodiment, the first air vent can be set in the middle area of ​​the hood, and the second air vent can be set around the first air vent. This allows air to be drawn in through the first air vent in the middle area and discharged through the second air vent around the hood. This facilitates the flow of hot air along the side wall of the cooking cavity to heat the food on the multi-layer baking tray and improve the cooking effect.

[0023] In some embodiments, optionally, the ratio of the minimum distance from the shroud to the hot air fan to the outer diameter of the hot air fan along the axial direction of the hot air fan is greater than or equal to 0.01 and less than or equal to 0.5.

[0024] In this embodiment, along the axial direction of the hot air fan, the ratio of the minimum distance from the fan shroud to the hot air fan's outer diameter is greater than or equal to 0.01 and less than or equal to 0.5. This setting, by limiting the relationship between the distance between the fan shroud and the hot air fan's outer diameter, ensures that the hot air fan does not interfere with the fan shroud during operation and provides installation space for the hot air fan, thereby improving installation efficiency and making the hot air assembly easier to install.

[0025] In some embodiments, optionally, the ratio of the minimum distance between the hot air fan and the inner wall of the cooking cavity to the outer diameter of the hot air fan along the axial direction of the hot air fan is greater than or equal to 0.01 and less than or equal to 0.5.

[0026] In this embodiment, along the axial direction of the hot air fan, the ratio of the minimum distance between the hot air fan and the inner wall of the cooking cavity to the outer diameter of the hot air fan is greater than or equal to 0.01 and less than or equal to 0.5. This arrangement, by limiting the relationship between the distance from the hot air fan to the inner wall of the cooking cavity and the outer diameter of the hot air fan, ensures that the hot air fan does not interfere with the inner wall of the cooking cavity during operation and also provides installation space for the hot air fan.

[0027] In some embodiments, optionally, the ratio of the minimum distance from the heating device to the hot air fan to the outer diameter of the hot air fan along the radial direction of the hot air fan is greater than or equal to 0.02 and less than or equal to 1.

[0028] In this embodiment, the ratio of the minimum distance from the heating device to the hot air fan to the outer diameter of the hot air fan along the radial direction of the hot air fan is greater than or equal to 0.02 and less than or equal to 1. This arrangement, by limiting the relationship between the distance from the heating device to the hot air fan and the outer diameter of the hot air fan, ensures that the hot air fan does not interfere with the heating device during operation and also provides installation space for the hot air fan.

[0029] In some embodiments, the cooking apparatus may optionally further include a microwave assembly disposed within the housing for delivering microwaves into the cooking cavity to microwave heat the food within the cooking cavity.

[0030] In this embodiment, the cooking device also includes a microwave component. The microwave component is housed within the enclosure and is capable of delivering microwaves into the cooking cavity to heat the food inside, thereby improving heating efficiency and sterilizing the food.

[0031] In some embodiments, optionally, the microwave assembly includes: a magnetron disposed within a housing; a microwave feed inlet disposed within a housing; and a waveguide disposed within a housing for connecting the magnetron and the microwave feed inlet; wherein the magnetron and the microwave feed inlet are respectively disposed on opposite sides of the housing, and at least one hot air assembly is disposed on the side of the housing where the magnetron is disposed.

[0032] In this embodiment, the microwave assembly includes a magnetron, a microwave feed inlet, and a waveguide. The magnetron, microwave feed inlet, and waveguide are all housed within the enclosure. The waveguide connects the magnetron and the microwave feed inlet, allowing microwaves generated by the magnetron to be introduced into the cooking cavity through the microwave feed inlet to heat the food. The magnetron and microwave feed inlet are respectively located on opposite sides of the enclosure. At least one hot air assembly is located on the side of the enclosure where the magnetron is located; that is, the hot air assembly and the magnetron can be located on the same side, which facilitates simultaneous heat dissipation from both the magnetron and the hot air assembly by the heat sink.

[0033] In some embodiments, the cooking apparatus may optionally include a control device connected to at least two hot air assemblies for controlling the at least two hot air assemblies to deliver hot air into the cooking cavity in at least one of at least two directions.

[0034] In this embodiment, the cooking device also includes a control device. The control device is connected to at least two hot air assemblies and can control one of the two hot air assemblies to work, or control both hot air assemblies to work simultaneously. This allows the hot air assemblies to deliver hot air into the cooking cavity in at least one of at least two directions according to the user's actual needs and the selection of different ingredients, thereby improving the cooking effect and avoiding the waste of electrical energy.

[0035] Additional aspects and advantages of the invention will become apparent in the following description or may be learned by practice of the invention. Attached Figure Description

[0036] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0037] Figure 1 One of the structural schematic diagrams of a cooking device according to an embodiment of the present invention is shown;

[0038] Figure 2 A second schematic diagram of the structure of a cooking device according to an embodiment of the present invention is shown;

[0039] Figure 3 A third schematic diagram of the structure of a cooking device according to an embodiment of the present invention is shown;

[0040] Figure 4 A fourth schematic diagram of the structure of a cooking device according to an embodiment of the present invention is shown;

[0041] Figure 5 An exploded view of a cooking apparatus according to an embodiment of the present invention is shown;

[0042] Figure 6 Fifth schematic diagram of the structure of a cooking device according to an embodiment of the present invention is shown;

[0043] Figure 7 A sixth schematic diagram of the structure of a cooking device according to an embodiment of the present invention is shown;

[0044] Figure 8 The seventh schematic diagram shows the structure of a cooking device according to an embodiment of the present invention;

[0045] Figure 9 This shows one of the structural schematic diagrams of a hot air oven in the related art;

[0046] Figure 10 The second schematic diagram of the structure of a hot air oven in the related technology is shown;

[0047] Figure 11 A simulation diagram of the airflow direction of a hot air oven in the related technology is shown.

[0048] in, Figures 1 to 8 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0049] 1. Cooking equipment, 10. Cabinet, 100. Cooking cavity, 102. Opening, 104. Airflow space, 12. Hot air assembly, 120. First hot air assembly, 122. Second hot air assembly, 124. Air hood, 1242. First air vent, 1244. Second air vent, 126. Hot air fan, 128. Heating device, 14. Microwave assembly, 142. Magnetron, 144. Microwave feed inlet, 146. Waveguide, 16. Drive device.

[0050] in, Figures 9 to 11 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0051] 1' Hot air oven, 10' Door switch, 12' Drive motor, 14' Rear fan cover, 16' Rear fan. Detailed Implementation

[0052] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0053] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0054] The following reference Figures 1 to 8 A cooking apparatus 1 is described according to some embodiments of the present invention.

[0055] According to an embodiment of the first aspect of the present invention, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the first aspect of the present invention provides a cooking device 1, including a housing 10, the housing 10 including a cooking cavity 100; at least two hot air assemblies 12, disposed inside the housing 10 and located on at least two sides of the housing 10, for delivering hot air into the cooking cavity 100 in at least two directions.

[0056] The cooking device 1 provided by this invention includes a housing 10 and at least two hot air assemblies 12. The at least two hot air assemblies 12 are disposed within the housing 10 and on at least two sides of the housing 10. That is, when there are at least two hot air assemblies 12, one hot air assembly 12 can be disposed on the side of the housing 10, and another hot air assembly 12 can be disposed on the top or bottom of the housing 10. This allows the food inside the housing 10 to be heated by the hot air assemblies 12 disposed on the side and top of the housing 10. Alternatively, one hot air assembly 12 can be disposed on each of two non-opposite sides of the housing 10. It is understood that since this application can deliver hot air into the cooking cavity 100 in at least two directions, that is, hot air assemblies 12 can be disposed on both the side and top, this application enables the airflow inside the housing 10 to flow vertically and horizontally or forward and backward, thus heating the food from multiple angles and improving the cooking effect. For example, when the cooking device 1 has multiple baking trays, if the hot air assembly 12 is only installed at the top or bottom, the airflow in the vertical direction will be blocked by the baking trays, thus failing to heat the food sufficiently. However, since the present application has hot air assemblies 12 installed on at least two sides, it can heat the food sufficiently.

[0057] In this application, at least two hot air components 12 can work simultaneously, or one of them can work at a time.

[0058] In some embodiments, optionally, the housing 10 is provided with an opening 102, which communicates with the cooking cavity 100; at least two hot air assemblies 12 include a first hot air assembly 120 and a second hot air assembly 122, the first hot air assembly 120 is disposed on a first side of the housing 10 and is disposed opposite to the opening 102, the first hot air assembly 120 is used to deliver hot air into the cooking cavity 100 along a first direction; the second hot air assembly 122 is disposed on a second side of the housing 10, the second hot air assembly 122 is used to deliver hot air into the cooking cavity 100 along a second direction.

[0059] In this embodiment, the housing 10 has an opening 102 that communicates with the cooking cavity 100, allowing ingredients and baking trays to be placed into the cooking cavity 100 through the opening 102. At least two hot air assemblies 12 include a first hot air assembly 120 and a second hot air assembly 122. The first hot air assembly 120 is disposed on a first side of the housing 10, opposite to the opening 102, and is capable of delivering hot air into the cooking cavity 100 along a first direction. The second hot air assembly 122 is disposed on a second side of the housing 10 and is capable of delivering hot air into the cooking cavity 100 along a second direction. By configuring the first and second hot air assemblies 120 to deliver hot air along both the first and second directions, hot air delivery from multiple directions is achieved, ensuring that the ingredients can be heated from multiple directions and improving the cooking effect.

[0060] In some embodiments, optionally, the first direction is the front-rear direction of the housing 10, and the first hot air assembly 120 is disposed on the rear side of the housing 10; the second direction is the up-down direction of the housing 10, and the second hot air assembly 122 is disposed on the upper side of the housing 10.

[0061] In this embodiment, the first direction is the front-to-back direction of the housing 10, and the first hot air assembly 120 is disposed on the rear side of the housing 10. The second direction is the up-and-down direction of the housing 10, and the second hot air assembly 122 is disposed on the upper side of the housing 10. This arrangement, with the first hot air assembly 120 disposed on the rear side of the housing 10 and the second hot air assembly 122 disposed on the top of the cavity, enables the delivery of hot air from both the rear and the top, which is more conducive to heating the food, especially when there are multiple baking trays inside the cooking cavity 100, the cooking effect is particularly obvious.

[0062] In some embodiments, optionally, such as Figure 4 and Figure 5 As shown, the hot air assembly 12 includes: a fan shroud 124, disposed on one side of the housing 10, forming a flow guide space 104 with the inner wall of the housing 10; a hot air fan 126, disposed within the flow guide space 104; and a heating device 128, disposed corresponding to the hot air fan 126, used to heat the air passing through the hot air fan 126; the fan shroud 124 is provided with a first air hole 1242 and a second air hole 1244, the first air hole 1242 being disposed corresponding to the air inlet area of ​​the hot air fan 126, and the second air hole 1244 being disposed corresponding to the air outlet area of ​​the hot air fan 126.

[0063] In this embodiment, the hot air assembly 12 includes a fan shroud 124, a hot air fan 126, and a heating device 128. The fan shroud 124 is disposed on one side of the housing 10, forming a flow guide space 104 with the inner wall of the housing 10. The hot air fan 126 is disposed within the flow guide space 104. The heating device 128 is disposed corresponding to the hot air fan 126 and is capable of heating the air passing through the hot air fan 126. The fan shroud 124 is provided with a first air hole 1242 and a second air hole 1244. The first air hole 1242 is disposed corresponding to the air inlet area of ​​the hot air fan 126, and the second air hole 1244 is disposed corresponding to the air outlet area of ​​the hot air fan 126. This arrangement, by covering the hot air fan 126 with the fan shroud 124, can protect the hot air fan 126. Furthermore, by setting up the hood 124, it is also beneficial for the hot air fan 126 to guide the airflow, so that the air can enter the hood 124 from the specific first air hole 1242 and exit the hood 124 from the second air hole 1244, thus avoiding the relatively scattered entry or exit of the airflow space 104 and improving the airflow effect.

[0064] In some embodiments, optionally, such as Figure 3 As shown, the heating device 128 is arranged around the hot air fan 126.

[0065] In this embodiment, the heating device 128 is arranged around the hot air fan 126, so that the heating device 128 and the hot air fan 126 are on the same plane, thereby reducing the overall thickness of the hot air assembly 12 and increasing the cooking space of the cooking cavity 100.

[0066] In some embodiments, the hot air fan 126 may optionally include one or a combination of a centrifugal fan and an axial fan.

[0067] In some embodiments, the first air hole 1242 may optionally include: a plurality of first mesh holes, which are arranged irregularly or arranged according to a first preset rule; the second air hole 1244 may include: a plurality of second mesh holes, which are arranged irregularly or arranged according to a second preset rule.

[0068] In this embodiment, the first air vent 1242 includes a plurality of first mesh holes. These first mesh holes are arranged irregularly or according to a predetermined first rule. The second air vent 1244 includes a plurality of second mesh holes. These second mesh holes are arranged irregularly or according to a second predetermined rule. This arrangement allows the first air vent 1242 and the second air vent 1244 to be in the form of mesh holes, which not only ensures the effectiveness of air intake and exhaust but also provides good protection for the hot air assembly 12 and prevents food from entering the guide space 104 within the cooking cavity 100. Specifically, the first mesh holes and the second mesh holes can be arranged according to the first and second predetermined rules, respectively, or they can be arranged irregularly.

[0069] In some embodiments, optionally, such as Figure 3 and Figure 4 As shown, the ratio of the outer diameter of the first air vent 1242 to the outer diameter of the hot air fan 126 is greater than or equal to 0.3 and less than or equal to 2.

[0070] In this embodiment, Figure 3 D2 is the outer diameter of the 126mm hot air fan. Figure 4 D1 is the outer diameter of the first air hole 1242. The ratio of the outer diameter of the first air hole 1242 to the outer diameter of the hot air fan 126 is greater than or equal to 0.3 and less than or equal to 2, which can effectively ensure the efficiency of air suction.

[0071] In some embodiments, optionally, such as Figure 4 As shown, the first air vent 1242 is located in the central region of the hood 124, and the second air vent 1244 is located around the first air vent 1242.

[0072] In this embodiment, the first air vent 1242 can be set in the middle area of ​​the air hood 124, and the second air vent 1244 can be set around the first air vent 1242. In this way, air can be drawn in through the first air vent 1242 in the middle area and discharged through the second air vent 1244 around it. This facilitates the flow of hot air along the side wall of the cooking cavity 100 to heat the food on the multi-layer baking tray and improve the cooking effect.

[0073] In some embodiments, optionally, such as Figure 2 , Figure 3 and Figure 5 As shown, along the axial direction of the hot air fan 126 ( Figure 5 In the diagram, A represents the axial direction of the hot air fan 126 of the first hot air assembly 120, and B represents the axial direction of the hot air fan 126 of the second hot air assembly 122. The ratio of the minimum distance from the shroud 124 to the hot air fan 126 to the outer diameter of the hot air fan 126 is greater than or equal to 0.01 and less than or equal to 0.5.

[0074] In this embodiment, Figure 2 In this context, L1 represents the minimum distance from the fan shroud 124 to the hot air fan 126. Along the axial direction of the hot air fan 126, the ratio of this minimum distance to the outer diameter of the hot air fan 126 is greater than or equal to 0.01 and less than or equal to 0.5. This configuration, by limiting the relationship between the distance between the fan shroud 124 and the hot air fan 126 and the outer diameter of the hot air fan 126, ensures that the hot air fan 126 does not interfere with the fan shroud 124 during operation and provides installation space for the hot air fan 126, thus improving installation efficiency and making the hot air assembly 12 easier to install.

[0075] In some embodiments, optionally, such as Figure 2 and Figure 3 As shown, along the axial direction of the hot air fan 126, the ratio of the minimum distance between the hot air fan 126 and the inner wall of the cooking cavity 100 to the outer diameter of the hot air fan 126 is greater than or equal to 0.01 and less than or equal to 0.5.

[0076] In this embodiment, Figure 2 In this context, L2 represents the minimum distance between the hot air fan 126 and the inner wall of the cooking cavity 100. Along the axial direction of the hot air fan 126, the ratio of this minimum distance to the outer diameter of the hot air fan 126 is greater than or equal to 0.01 and less than or equal to 0.5. This arrangement, by limiting the relationship between the distance from the hot air fan 126 to the inner wall of the cooking cavity 100 and the outer diameter of the hot air fan 126, ensures that the hot air fan 126 does not interfere with the inner wall of the cooking cavity 100 during operation and provides sufficient installation space for the hot air fan 126.

[0077] In some embodiments, optionally, such as Figure 3 As shown, along the radial direction of the hot air fan 126 ( Figure 3 (In the direction indicated by the middle arrow C), the ratio of the minimum distance between the heating device 128 and the hot air fan 126 to the outer diameter of the hot air fan 126 is greater than or equal to 0.02 and less than or equal to 1.

[0078] In this embodiment, Figure 3 In the figure, L3 represents the minimum distance between the heating device 128 and the hot air fan 126. Along the radial direction of the hot air fan 126, the ratio of this minimum distance to the outer diameter of the hot air fan 126 is greater than or equal to 0.02 and less than or equal to 1. This arrangement, by limiting the relationship between the distance between the heating device 128 and the hot air fan 126 and the outer diameter of the hot air fan 126, ensures that the hot air fan 126 does not interfere with the heating device 128 during operation and also provides sufficient installation space for the hot air fan 126.

[0079] In some embodiments, optionally, such as Figure 7 As shown, the cooking device 1 also includes a microwave component 14, which is disposed inside the housing 10 and is used to deliver microwaves into the cooking cavity 100 to heat the food inside the cooking cavity 100.

[0080] In this embodiment, the cooking device 1 also includes a microwave component 14. The microwave component 14 is disposed inside the housing 10 and can deliver microwaves into the cooking cavity 100 to heat the food inside the cooking cavity 100, thereby improving heating efficiency and sterilizing the food.

[0081] In some embodiments, optionally, such as Figure 7 As shown, the microwave assembly 14 includes: a magnetron 142 disposed within the housing 10; a microwave feed inlet 144 disposed within the housing 10; and a waveguide 146 disposed within the housing 10 for connecting the magnetron 142 and the microwave feed inlet 144. The magnetron 142 and the microwave feed inlet 144 are respectively disposed on opposite sides of the housing 10, and at least one hot air assembly 12 is disposed on the side of the housing 10 where the magnetron 142 is disposed.

[0082] In this embodiment, the microwave assembly 14 includes a magnetron 142, a microwave feed inlet 144, and a waveguide 146. The magnetron 142, microwave feed inlet 144, and waveguide 146 are all housed within the housing 10. The waveguide 146 connects the magnetron 142 and the microwave feed inlet 144, allowing microwaves generated by the magnetron 142 to be introduced into the cooking cavity 100 through the microwave feed inlet 144 to heat the food. The magnetron 142 and microwave feed inlet 144 are respectively located on opposite sides of the housing 10. At least one hot air assembly 12 is located on the side of the housing 10 where the magnetron 142 is located; that is, the hot air assembly 12 and the magnetron 142 can be located on the same side, which facilitates simultaneous heat dissipation from both the magnetron 142 and the hot air assembly 12 by the heat sink.

[0083] In some embodiments, the cooking apparatus 1 may optionally include a control device connected to at least two hot air assemblies 12 for controlling the at least two hot air assemblies 12 to deliver hot air into the cooking cavity 100 in at least one of at least two directions.

[0084] In this embodiment, the cooking device 1 also includes a control device. The control device is connected to at least two hot air assemblies 12 and can control one of the two hot air assemblies 12 to work, or control both hot air assemblies 12 to work simultaneously. This allows the hot air assemblies 12 to deliver hot air into the cooking cavity 100 in at least one of at least two directions according to the user's actual needs and the selection of different ingredients, thereby improving the cooking effect and avoiding the waste of electrical energy.

[0085] In some embodiments, the housing 10 may optionally include a heat dissipation duct, and the cooking device 1 may also include a heat dissipation component disposed opposite to the microwave component 14 and the hot air component 12 for dissipating heat from the microwave component 14 and the hot air component 12.

[0086] In this embodiment, the housing 10 further includes a heat dissipation duct, and the cooking device 1 further includes a heat dissipation component. The heat dissipation component is disposed opposite to the microwave component 14 and the hot air component 12, and is capable of dissipating heat from the microwave component 14 and the hot air component 12.

[0087] In some embodiments, the cooking device 1 may optionally include: at least one support device disposed within the cooking cavity 100 for supporting the food to be cooked.

[0088] In this embodiment, the cooking device 1 further includes at least one support device. The at least one support device is disposed within the cooking cavity 100 and is capable of supporting the food to be cooked. For example, the support device is a baking pan.

[0089] In some embodiments, the support device may optionally include a plurality of support devices, which are spaced apart along the height direction.

[0090] In this embodiment, the supporting device includes multiple devices, which are spaced apart along the height direction. By setting multiple supporting devices, not only can the amount of cooking ingredients be increased, but the cooking effect can also be guaranteed.

[0091] In some embodiments, the cooking device 1 may optionally include a drive unit 16 disposed outside the housing 10 and connected to the hot air assembly 12.

[0092] In this embodiment, the cooking device 1 also includes a drive device 16. The drive device 16 is disposed outside the housing 10 and connected to the hot air assembly 12, so that the hot air assembly 12 can be driven by the drive device 16 to guide the air in the cooking cavity 100, so that the air in the cooking cavity 100 is heated and applied to the food.

[0093] In some embodiments, the drive device 16 may optionally include a drive motor.

[0094] In some embodiments, the heating device 128 may optionally include a heating tube, which may include a metal heating tube, a halogen heating tube, a graphite heating tube, or a graphene heating tube.

[0095] In some embodiments, a metal heating tube may be provided on the side of the cooking cavity 100.

[0096] In some embodiments, a halogen heating element, a graphite heating element, or a graphene heating element may be provided on the top of the cooking cavity 100.

[0097] In some embodiments, the cooking device 1 may optionally include an oven, a microwave oven, etc.

[0098] According to an embodiment of the first aspect of the present invention, a cooking device 1 is proposed, which, combined with the heating hotspots of different ingredients in an oven, is designed with a dual-air duct structure featuring top and back heating. The air duct assembly (hot air assembly 12) consists of a motor, a heating element (heating device 128), a fan (hot air fan 126), and a fan shroud 124. Figure 1 , Figure 2 , Figure 5 As shown, in the rear air duct, the fan cover 124 is fixed to the back of the cavity. The rear heating tubes are arranged around the air outlet of the rear fan or near the air return port of the fan. The fan cover 124 is provided with an air inlet (first air hole 1242) and an air outlet (second air hole 1244). The center of the air inlet is directly opposite the air return port of the rear fan rotation center and is located near the center of the cavity, realizing the effect of drawing air from the center of the cavity and circulating air in the front and back directions. The top air duct is similar to the rear air duct. The rotation center of the top fan is located near the center of the cavity front and back. The top heating tubes (heating device 128) are arranged around or below the top fan. The top fan (hot air fan 126) is arranged inside the top fan cover 124. The top fan cover 124 has air inlet and outlet. The air inlet (first air hole 1242) is directly opposite the rotation center of the fan, realizing the effect of drawing air from the center of the cavity and circulating air in the up and down directions. The present invention designs a heating element and a fan arranged inside the fan, with the heating element located around the fan, which can reduce the overall thickness of the air duct assembly and improve the effective use of space in the cavity.

[0099] In some embodiments, optionally, such as Figure 3 and Figure 4 As shown, the ratio of the diameter D1 of the air inlet of the top shroud 124 to the diameter D2 of the top fan (hot air fan 126) is greater than or equal to 0.3 and less than or equal to 2.

[0100] In some embodiments, optionally, such as Figure 2 and Figure 3 As shown, the ratio of the minimum distance L1 between the top fan (hot air fan 126) and the top shroud 124 to the diameter D2 of the top fan (hot air fan 126) is greater than or equal to 1 / 100 and less than or equal to 1 / 2.

[0101] In some embodiments, optionally, such as Figure 2 and Figure 3 As shown, the ratio of the minimum distance L2 between the top fan (hot air fan 126) and the top plate of the cavity (inner wall of the cooking cavity 100) to the diameter D2 of the top fan is greater than or equal to 1 / 100 and less than or equal to 1 / 2.

[0102] In some embodiments, optionally, such as Figure 3 As shown, the ratio of the minimum distance L3 between the heating element and the fan to the diameter D2 of the top fan is greater than or equal to 1 / 50 and less than or equal to 1.

[0103] In some embodiments, the heating element at the back and the heating element at the top can be either metal, halogen, graphite, or graphene. It is recommended that the back heating element be a metal heating element and the top heating element be a halogen, graphite, or graphene heating element with a high radiation ratio.

[0104] In some embodiments, optionally, the dual-heat-air operation mode at the top and back can be achieved by operating a single top air duct assembly, a single back air duct assembly, or both top and back air duct assemblies operating simultaneously. For example... Figure 6 As shown, the top air duct assembly operates independently and is suitable for scenarios where air can flow vertically along the cavity to heat food, such as fries; Figure 7 As shown, the rear air duct assembly operates independently and is suitable for scenarios involving multi-layer baking on a solid baking tray; as Figure 8 As shown, the simultaneous operation of the top and back can disrupt the airflow within the cavity, which is beneficial for a more uniform temperature distribution within the cavity. Among these, Figures 6 to 8 The black arrows in the diagram indicate the direction of airflow.

[0105] like Figure 9 , Figure 10 and Figure 11 As shown ( Figure 10 (The black arrow in the image indicates the direction of airflow). The hot air oven 1' in the related technology mainly involves arranging rear heating elements around the rear fan 16', that is, arranging the rear heating elements on the side opposite the opening / closing door 10' of the hot air oven 1'. When the drive motor 12' rotates, the center of the rear fan 16' draws air from inside the cavity, and the blades work to throw the air out to the rear heating elements. After being heated by the rear heating elements, it forms hot air, which enters the cavity through the rear fan shroud 14' to heat the food inside. The main disadvantages of this type of hot air are uneven heating and slow heating speed. Existing hot air operation modes have high resistance losses and lack flow control, resulting in low air velocity entering the cavity, while also forming three-dimensional cross-flow (such as...). Figure 11 As shown by the black cross arrow in the middle, the heat was not effectively blown onto the surface of the food. At the same time, the heating element is located at the back, so the heat radiated to the food is uneven and the heating efficiency is low.

[0106] Compared to the convection oven 1' in related technologies, this invention features a dual airflow system at the back and top. The back airflow assembly is located near the center of the back of the cavity, primarily providing airflow between the front and back of the cavity. The top airflow assembly is located near the center of the top of the cavity, primarily providing airflow between the top and bottom of the cavity. Therefore, this application enables airflow within the oven 10 to flow vertically, horizontally, or front-back, allowing for heating of food from multiple angles and thus improving cooking results.

[0107] In this invention, the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "installed," "connected," "linked," and "fixed," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "linked" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0108] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0109] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A cooking apparatus, characterized by, The cooking apparatus comprises: a cabinet comprising a cooking cavity; at least two hot air assemblies arranged in the cabinet and located at at least two sides of the cabinet, for conveying hot air into the cooking cavity in at least two directions.

2. The cooking apparatus according to claim 1, wherein an opening is arranged on the cabinet and communicates with the cooking cavity; the at least two hot air assemblies comprise a first hot air assembly and a second hot air assembly, the first hot air assembly is arranged at a first side of the cabinet and opposite to the opening, and the first hot air assembly is configured to convey hot air into the cooking cavity in a first direction; the second hot air assembly is arranged at a second side of the cabinet, and the second hot air assembly is configured to convey hot air into the cooking cavity in a second direction.

3. The cooking apparatus according to claim 2, wherein the first direction is a front-rear direction of the cabinet, and the first side is a rear side of the cabinet; the second direction is an up-down direction of the cabinet, and the second side is an upper side of the cabinet.

4. The cooking apparatus according to claim 1, characterized in that, The hot air assembly comprises: a shroud arranged at a side of the cabinet and surrounding an inner wall of the cabinet to form a flow guide space; a hot air fan arranged in the flow guide space; a heating device arranged corresponding to the hot air fan and configured to heat air passing through the hot air fan; the shroud is provided with a first air hole and a second air hole, the first air hole is arranged corresponding to an air inlet area of the hot air fan, and the second air hole is arranged corresponding to an air outlet area of the hot air fan.

5. The cooking apparatus according to claim 4, wherein The heating device is arranged around the hot air fan.

6. The cooking apparatus according to claim 4, wherein The hot air fan comprises one or a combination of a centrifugal fan and an axial fan.

7. The cooking apparatus according to claim 4, wherein A ratio of an outer diameter of the first air hole to an outer diameter of the hot air fan is greater than or equal to 0.3 and less than or equal to 2.

8. The cooking apparatus according to claim 4, wherein The first air hole is located in a middle region of the shroud, and the second air hole is located around the first air hole.

9. The cooking apparatus according to claim 4, wherein in an axial direction of the hot air fan, a ratio of a minimum distance from the shroud to the hot air fan to an outer diameter of the hot air fan is greater than or equal to 0.01 and less than or equal to 0.

5.

10. The cooking apparatus according to claim 4, wherein in an axial direction of the hot air fan, a ratio of a minimum distance between the hot air fan and an inner wall of the cooking cavity to an outer diameter of the hot air fan is greater than or equal to 0.01 and less than or equal to 0.5; and / or in a radial direction of the hot air fan, a ratio of a minimum distance from the heating device to the hot air fan to an outer diameter of the hot air fan is greater than or equal to 0.02 and less than or equal to 1.

11. The cooking apparatus according to any one of claims 1 to 10, characterized in that, The cooking apparatus further comprises: a microwave assembly arranged in the cabinet and configured to convey microwaves into the cooking cavity to heat food in the cooking cavity by microwaves.

12. The cooking apparatus according to claim 11, wherein, The microwave assembly comprises: a magnetron arranged in the cabinet; a microwave feed inlet arranged in the cabinet; a waveguide arranged in the cabinet and configured to connect the magnetron and the microwave feed inlet. The magnetron and the microwave feeding entrance are respectively arranged on two opposite sides of the box body, and at least one hot air assembly is arranged on the side of the box body where the magnetron is arranged.

13. The cooking apparatus according to any one of claims 1 to 10, characterized in that, Further comprising: The control device is connected with the at least two hot air assemblies, and is used for controlling the at least two hot air assemblies to deliver hot air into the cooking cavity along at least one of the at least two directions.