Air cooking utensil

Abstract

The utility model provides an air cooking utensil which comprises a carrying piece, the carrying piece comprises a bottom wall, and a first through hole is formed in the bottom wall; the guide vane is located on the edge of the first through hole and arranged on the side, close to the center of the bottom wall, of the first through hole; the first ends of the guide vanes are connected with the outer wall face of the bottom wall, the second ends of the guide vanes extend in the direction away from the outer wall face of the bottom wall, and the guide vanes are gradually close to the edge of the bottom wall from the first ends to the second ends. According to the structure, when hot air flow rotates to the guide vane, part of the air flow can be guided upwards along the guide vane so that the part of the air flow can penetrate through the first through hole to enter the object carrying piece, and the other part of the air flow can penetrate through the first through hole to enter the object carrying piece under reflection of the guide vane; therefore, the spiral movement of hot air can be prevented to a certain extent, the working efficiency of airflow is improved, the heat energy loss is reduced, and the heat efficiency and the temperature uniformity of the air cooking equipment are improved.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, and more specifically, to an air-cooking appliance. Background Technology

[0002] Air fryers use high-speed circulating hot air to heat food, and their temperature uniformity is one of the most important performance characteristics. If the air fryer does not reach the food at an even temperature, some parts of the food will be overcooked while others are undercooked, which will affect the taste and quality of the food.

[0003] In most air fryer designs, the heating element heats the air, a fan draws in the hot air and throws it outwards, then the hot air spirals downwards through the channel between the food container and the frying drum, reaching the bottom of the food container. Because there are holes at the bottom of the food container, the hot air comes into contact with the food through the openings, thus heating the food.

[0004] In an air fryer, hot air spirals downwards through the channel between the frying drum and the food container. However, the bottom of most food containers is flat. The hot air continues its spiral motion at the bottom of the container, with the outer ring of airflow rotating at a higher speed and temperature, while the inner ring rotates at a lower speed and temperature. This results in food on the outside being hotter than food near the center, leading to poor temperature uniformity between the inside and outside of the food.

[0005] Therefore, improving the temperature uniformity of air fryers has become an urgent problem to be solved. Utility Model Content

[0006] The present invention aims to at least solve the technical problem of poor temperature uniformity in air fryers in the prior art or related technologies.

[0007] Therefore, the first objective of this utility model is to provide an air cooking appliance.

[0008] To achieve the above objectives, embodiments of this utility model provide an air cooking appliance capable of generating hot airflow. The air cooking appliance includes: a container, the container including a bottom wall with a first through hole; a guide vane located on the edge of the first through hole and disposed on the side of the first through hole near the center of the bottom wall; a first end of the guide vane connected to the outer wall surface of the bottom wall, and a second end of the guide vane extending away from the outer wall surface of the bottom wall, the guide vane gradually approaching the edge of the bottom wall from the first end to the second end.

[0009] This utility model provides an air-cooking appliance, including a frying drum and a food carrier. The frying drum forms a cooking cavity for cooking food. The frying drum has a circulating airflow. After the food carrier is installed inside the frying drum, an air passage is formed between the outer wall of the food carrier and the inner wall of the frying drum, or an air passage is provided on the side of the food carrier radially close to the inner wall of the frying drum. Through the air passage, the hot airflow generated by the air-cooking appliance can be guided vertically from top to bottom to the outer bottom of the food carrier. Ventilation holes are provided on the bottom wall of the food carrier, allowing the hot airflow from the outer bottom of the food carrier to enter the interior of the food carrier.

[0010] In this application, guide vanes are provided on the inner edge of some of the ventilation holes (i.e., the edge near the center of the bottom wall), and the ventilation holes with guide vanes are referred to as the first through holes. The bottom wall of the container includes an inner wall surface (upper wall surface) and an outer wall surface (lower wall surface). The inner wall surface of the bottom wall of the container forms a cooking cavity to accommodate food. The lower wall surface (outer wall surface) of the bottom wall of the container forms an air duct. The guide vanes are provided on the outer wall surface of the bottom wall of the container and extend obliquely from the outer wall surface of the bottom wall of the container in a direction away from the outer wall surface of the bottom wall of the container (i.e., downward direction). The guide vanes can guide part of the airflow through the first through hole to enter the upper part of the container when the hot airflow flows to the first through hole. Specifically, when the rotating airflow passes through the guide vanes, some of the airflow can be guided upwards along the vanes, allowing this portion of the airflow to pass through the first through-hole and enter above the food container. This can, to some extent, prevent the spiral motion of the hot air, improve the efficiency of the airflow, and reduce heat loss. Simultaneously, some airflow can pass through the first through-hole and enter above the food container under the reflection of the guide vanes, preventing the airflow from continuing its spiral motion. This allows this portion of the airflow to escape more quickly in the central region, thereby rapidly heating the food and improving the thermal efficiency and temperature uniformity of the air-cooking equipment.

[0011] The guide vanes gradually extend towards the edge of the bottom wall from the first end to the second end, meaning they are inclined outwards from top to bottom. This creates an upwardly inclined guide surface, allowing airflow to be guided through the first through-hole or reflected through the first through-hole to the top of the object. Optionally, in any of the above embodiments, a second through-hole is provided on the bottom wall, located inside the plurality of first through-holes along the radial direction of the object, and / or a third through-hole is provided on the bottom wall, located outside the plurality of first through-holes along the radial direction of the object.

[0012] In this embodiment, a second or third through hole may be provided inside or outside the first through hole. The second through hole allows airflow gathered in the middle of the container to enter the container, ensuring sufficient airflow into the central region of the container. The third through hole allows the outer edge of the container's bottom wall to be flat, enabling airflow to flow quickly from the edge to the center, ensuring sufficient airflow in the middle of the container.

[0013] In any of the above embodiments, optionally, the number of first through holes is multiple, and the multiple first through holes are equally spaced along the circumference of the carrier; and / or the first through holes include annular holes arranged in a ring shape along the circumference of the carrier.

[0014] In this embodiment, the multiple first through holes located in the same circumferential direction are equally spaced along the entire circumference of the carrier, that is, the multiple first through holes are evenly distributed along the circumference, so that the airflow in all directions at the bottom of the carrier can be uniformly guided, thereby further ensuring the uniformity of airflow.

[0015] Furthermore, the first through hole can also be arranged in a ring shape along the circumference of the object being carried, that is, the first through hole includes an annular hole (an annular hole can be understood as multiple first through holes located in the same circumferential direction connected to each other). In this case, a full circle of guide vanes can be provided on the inner side of the annular hole, or multiple guide vanes can be provided at intervals.

[0016] In any of the above embodiments, optionally, the plurality of first through holes are configured in a multi-layer structure along the radial direction of the loading component. That is, the plurality of first through holes are not located at the same radial position, but are configured in multiple layers from the inside to the outside. The multi-layered arrangement of first through holes and multi-layered guide vanes can guide the airflow multiple times in the radial direction, thereby improving the overall uniformity of the airflow.

[0017] In any of the above embodiments, optionally, the plurality of first through holes include a plurality of first layer holes and a plurality of second layer holes, with the second layer holes located outside the first layer holes along the radial direction of the loading component; the plurality of first layer holes are equally spaced along the circumference of the loading component or connected in a ring along the circumference of the loading component, and / or the plurality of second layer holes are equally spaced along the circumference of the loading component or connected in a ring along the circumference of the loading component. Further, the plurality of guide vanes include inner guide vanes disposed at the edges of the second layer holes and outer guide vanes disposed at the edges of the first layer holes.

[0018] In this embodiment, the plurality of first through holes are distributed radially in at least two layers. This simplifies the overall structure of the bottom wall of the carrier. The guide vanes may also include inner and outer guide vanes arranged in corresponding layers. The plurality of first through holes in the same circumferential direction can be evenly spaced circumferentially or connected in a ring shape along the circumference of the carrier. For example, the first or second layer of holes may include a large annular hole or be composed of multiple spaced-apart first through holes.

[0019] In any of the above embodiments, optionally, the bottom wall and the guide vane are an integral structure, thereby ensuring the connection strength between the bottom wall and the guide vane.

[0020] In any of the above embodiments, optionally, each first through hole is provided with a guide vane. Further, there are multiple first through holes. There are multiple guide vanes, and the multiple guide vanes and multiple first through holes are provided in a one-to-one correspondence.

[0021] In this embodiment, guide vanes can be provided on the edges of multiple first through holes to guide the airflow at multiple points, thereby significantly improving the thermal efficiency and temperature uniformity of the air cooking device.

[0022] In any of the above embodiments, optionally, the first through hole is a stamping hole, and the guide vane is a stamping flange formed on the bottom wall when the stamping hole is formed by stamping.

[0023] In this embodiment, the first through hole can be formed on the bottom wall by stamping. At the same time, the stamped-out flange can be directly used for the guide vane during the stamping process, so that the first through hole and the guide vane can be processed together, which simplifies the processing steps of the carrier and reduces the processing cost of the carrier.

[0024] In any of the above embodiments, optionally, the distance between the centerline of any first through hole and the center of the bottom wall is less than the distance between the first through hole and the edge of the bottom wall.

[0025] In this embodiment, the first through holes are concentrated in the inner part of the bottom wall, so that more airflow can reach the central area of ​​the bottom and avoid the airflow being concentrated at the edge of the object.

[0026] In any of the above embodiments, optionally, the included angle between the guide vane and the axial direction of the carrier is greater than or equal to 30° and less than or equal to 60°; and / or, the included angle between the guide vane and the outer wall surface of the bottom wall is greater than or equal to 30° and less than or equal to 60°.

[0027] In this embodiment, the upper wall surface of the bottom wall of the container can be used to form a cooking cavity to accommodate food. The lower wall surface (outer wall surface) of the container is used to form an air duct. When designing the tilt angle of the guide vanes, the axial direction of the container can be used as a reference to make the guide vanes form an angle of 30°-60° with the vertical direction or with the outer wall surface of the bottom wall. Similarly, when designing the tilt angle of the guide vanes, the outer wall surface (lower wall surface) of the bottom wall of the container can also be used as a reference to make the guide vanes form an angle of 30°-60° with the vertical direction or with the outer wall surface of the bottom wall.

[0028] When the guide vane is set at a 45° angle to the load, some airflow can pass vertically through the first through-hole under the reflection of the guide vane. When the tilt angle of the guide vane relative to the outer wall is less than 45°, the airflow reflection direction points towards the central axis of the load, thus allowing the reflected airflow to gather at the center of the inner side of the load. Therefore, by reasonably setting the angle of the guide vane, the reflection direction of the airflow can be controlled, ensuring the opening size of the first through-hole, and controlling the guiding and reflecting effects of the guide vane on the airflow. This allows for a more precise division between the airflow that enters the first through-hole through the guidance of the guide vane and the airflow that gathers towards the center of the inner side of the load after reflection by the guide vane, and controls the position of different airflows entering the inner side of the load, so that the airflow can be more evenly distributed inside the load.

[0029] Optionally, the guide vane can rotate relative to the load to adjust the angle between the guide vane and the outer wall surface of the bottom wall. That is, the guide vane can be rotatably mounted on the load to adjust the angle between the guide vane and the outer wall surface of the bottom wall. Optionally, the guide vane can rotate around a connecting portion, which connects the guide vane and the load.

[0030] In this embodiment, the guide vane can rotate relative to the load. By rotating the guide vane, the angle between the guide vane and the outer wall of the bottom wall of the load can be adjusted, controlling the reflection direction of the airflow and the guiding direction of the airflow. This allows the direction of the airflow when passing through the first through hole (i.e., the air intake direction) to be adjusted, thereby adjusting the distribution position of the airflow inside the load after passing through the first through hole. This allows the airflow distribution inside the load to be reasonably adjusted according to the distribution of the food.

[0031] In one specific embodiment, the guide vane includes a connecting portion and a rotating portion, and the guide vane is connected to the load via the connecting portion. The rotating portion is rotatable relative to the connecting portion.

[0032] In one specific embodiment, the guide vane can be mounted on the load via a mounting shaft, which can be fixedly mounted on the load. In this case, the guide vane can rotate relative to the mounting shaft to adjust the angle of the guide vane relative to the load. Alternatively, the mounting shaft can also rotate relative to the load, and the guide vane and the mounting shaft are fixedly connected or are an integral structure. In this case, the guide vane and the mounting shaft can rotate as a whole relative to the load.

[0033] Optionally, the air fryer also includes a frying drum, wherein when the food is installed inside the frying drum, an air passage is formed between the food and the inner wall of the frying drum, and / or an air passage penetrating the food is provided on the side of the food that is radially close to the frying drum.

[0034] The hot airflow generated by the air-cooking appliance can enter between the bottom wall of the container and the bottom of the frying drum along the air guide channel.

[0035] Optionally, the air-cooking appliance includes: a housing with a cavity formed therein; a frying drum detachably installed in the cavity, with a food inlet / outlet on one side of the frying drum assembly; a hot air fan rotatably installed in the cavity and located on the side of the frying drum assembly with the food inlet / outlet, the hot air fan being used to circulate airflow within the frying drum assembly; a reflector installed in the cavity and located on the side of the hot air fan away from the frying drum assembly; and a heating device installed in the cavity and located on the side of the reflector near the frying drum assembly, for heating the airflow. The food container is installed inside the frying drum.

[0036] In this embodiment, the air fryer includes a housing with a receiving cavity formed within it. The housing serves as the outer shell of the entire air fryer. A removable frying drum assembly and a hot air assembly for generating a hot airflow are disposed within the housing. The hot air assembly specifically includes a hot air fan and a heating device. The hot air assembly is installed on the side of the frying drum assembly with a food inlet / outlet. The hot air generated by the hot air assembly can enter the frying drum assembly to heat the food inside. Simultaneously, a reflector is disposed on the side of the hot air fan away from the frying drum assembly. The reflector reflects and guides the airflow discharged by the hot air fan, allowing the airflow to enter the frying drum assembly.

[0037] Optionally, air cooking appliances include air fryers.

[0038] Additional aspects and advantages of this invention will become apparent in the description that follows, or may be learned by practice of this invention. Attached Figure Description

[0039] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0040] Figure 1This is one of the structural schematic diagrams of the carrier in an embodiment of this utility model;

[0041] Figure 2 This is the second schematic diagram of the structure of the carrier in an embodiment of this utility model;

[0042] Figure 3 This is one of the structural schematic diagrams of the air cooking appliance in the embodiments of this utility model;

[0043] Figure 4 This is the second structural schematic diagram of the air cooking appliance in the embodiments of this utility model.

[0044] in, Figures 1 to 4 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0045] 1. Loading container, 12. Bottom wall, 120. Outer wall surface, 122. First through hole, 1222. First layer hole, 1224. Second layer hole, 124. Second through hole, 126. Third through hole, 14. Guide vane, 142. Inner guide vane, 144. Outer guide vane, 2. Outer shell, 3. Hot air fan, 4. Heating device, 5. Frying barrel. Detailed Implementation

[0046] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model 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.

[0047] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0048] The following reference Figures 1 to 4 This application describes the air cooking appliance provided by the embodiments of this application.

[0049] like Figure 1 and Figure 2 As shown, an embodiment of the first aspect of this utility model provides an air cooking appliance capable of generating hot airflow. The air cooking appliance includes: a carrier 1, the carrier 1 including a bottom wall 12, the bottom wall 12 having a first through hole 122; a guide vane 14 located on the edge of the first through hole 122, and the guide vane 14 being disposed on the side of the first through hole 122 near the center of the bottom wall 12; a first end of the guide vane 14 being connected to the outer wall surface 120 of the bottom wall 12, and a second end of the guide vane 14 extending away from the outer wall surface 120 of the bottom wall 12, the guide vane 14 gradually approaching the edge of the bottom wall 12 from the first end to the second end.

[0050] The guide vane 14 is used to guide part of the airflow through the first through hole 122 into the container 1 when the hot airflow flows to the first through hole 122, or to reflect part of the airflow to the inside of the container 1 (or above the container 1) by reflection.

[0051] The present invention provides a carrier 1 for an air-cooking appliance, which includes a frying drum 5 and a carrier 1. The frying drum 5 forms a cooking cavity for cooking food. The frying drum 5 has a circulating airflow. After the carrier 1 is installed inside the frying drum 5, an air passage is formed between the outer wall of the carrier 1 and the inner wall of the frying drum 5, or an air passage is provided on the side of the carrier 1 radially close to the inner wall of the frying drum 5. Through the air passage, the hot airflow generated by the air-cooking appliance can be guided vertically from top to bottom to the outer bottom of the carrier 1. Ventilation holes are provided on the bottom wall 12 of the carrier 1, allowing the hot airflow from the outer bottom of the carrier 1 to enter the interior of the carrier 1.

[0052] In this application, a guide vane 14 is provided on the inner edge (i.e., the edge near the center of the bottom wall 12) of a portion of the ventilation holes (referred to as the first through hole 122 in this application). The ventilation hole with the guide vane 14 is referred to as the first through hole 122 in this application. The bottom wall 12 of the container 1 includes an inner wall surface (upper wall surface) and an outer wall surface 120 (lower wall surface). The inner wall surface of the bottom wall 12 of the container 1 forms a cooking cavity to accommodate food. The lower wall surface (outer wall surface 120) of the bottom wall 12 of the container 1 forms an air duct. The guide vane 14 is provided on the outer wall surface 120 of the bottom wall of the container 1 and extends obliquely from the outer wall surface 120 of the bottom wall 12 of the container 1 in a direction away from the outer wall surface 120 of the bottom wall 12 of the container 1 (i.e., downward direction). When the rotating airflow passes through the guide vane 14, part of the airflow is guided upwards along the guide vane 14 due to the wall adhesion effect, allowing this part of the airflow to pass through the first through hole 122 and enter the interior of the container 1. This can, to some extent, prevent the spiral motion of the hot air, improve the work efficiency of the airflow, and reduce heat loss. At the same time, part of the airflow can change its flow direction under the obstruction of the guide vane 14 (i.e., the airflow is reflected when it passes through the guide vane), thus passing through the first through hole 122 and entering the upper part of the container 1, preventing the airflow from continuing to spiral. This allows this part of the airflow to escape more quickly in the central region, thereby rapidly heating the food and improving the thermal efficiency and temperature uniformity of the air cooking equipment.

[0053] Among them, such as Figure 2As shown, the guide vane 14 gradually extends towards the edge of the bottom wall 12 from the first end to the second end. That is, the guide vane 14 is inclined outward from top to bottom, so as to form an inclined upward guiding surface, so that the airflow can be guided or reflected to pass through the first through hole 122 and enter the top of the carrier 1.

[0054] In any of the above embodiments, optionally, as Figure 1 and Figure 2 As shown, there are multiple first through holes 122 and multiple guide vanes 14, with each guide vane 14 and the multiple first through holes 122 corresponding to each other.

[0055] In this embodiment, guide vanes 14 can be provided on the edges of multiple first through holes 122 to guide the airflow at multiple points, thereby significantly improving the thermal efficiency and temperature uniformity of the air cooking device.

[0056] In any of the above embodiments, optionally, as Figure 1 and Figure 2 As shown, a second through hole 124 is provided on the bottom wall 12, and the second through hole 124 is located inside the plurality of first through holes 122 along the radial direction of the loading member 1, and / or a third through hole 126 is provided on the bottom wall 12, and the third through hole 126 is located outside the plurality of first through holes 122 along the radial direction of the loading member 1.

[0057] In this embodiment, a second through hole 124 or a third through hole 126 may be provided inside or outside the first through hole 122. The second through hole 124 allows airflow gathered in the middle of the carrier 1 to enter the carrier 1, ensuring sufficient airflow into the central region of the carrier 1. The third through hole 126 allows the outer edge of the bottom wall 12 of the carrier 1 to be flat, enabling airflow to flow quickly from the edge of the bottom wall 12 towards the center, ensuring sufficient airflow in the middle of the carrier 1.

[0058] In any of the above embodiments, optionally, as Figure 1 and Figure 2 As shown, a plurality of first through holes 122 are equally spaced along the circumference of the carrier 1. And / or the first through holes 122 include annular holes arranged in a ring shape along the circumference of the carrier 1.

[0059] In this embodiment, the multiple first through holes 122 located in the same circumferential direction are equally spaced along the entire circumference of the carrier 1, that is, the multiple first through holes 122 are evenly distributed along the circumference, so that the airflow in each direction at the bottom of the carrier 1 can be evenly guided, thereby further ensuring the uniformity of the airflow.

[0060] Furthermore, the first through hole 122 can also be arranged in an annular shape along the circumference of the carrier 1, that is, the first through hole 122 includes an annular hole (an annular hole can be understood as a plurality of first through holes 122 located in the same circumferential direction connected to each other). In this case, a full circle of guide vanes can be provided on the inner side of the annular hole, or multiple guide vanes can be provided at intervals.

[0061] In any of the above embodiments, optionally, as Figure 1 and Figure 2 As shown, along the radial direction of the carrier 1, multiple first through holes 122 are arranged in a multi-layer structure. That is, the multiple first through holes 122 are not arranged in the same radial position, but are arranged in multiple layers from the inside to the outside. The multi-layer arrangement of first through holes 122 and multi-layer arrangement of guide vanes 14 can guide the airflow multiple times in the radial direction, thereby making the overall airflow uniformity better.

[0062] In any of the above embodiments, optionally, as Figure 1 and Figure 2 As shown, the plurality of first through holes 122 include a plurality of first layer holes 1222 and a plurality of second layer holes 1224. Along the radial direction of the carrier 1, the second layer holes 1224 are located outside the first layer holes 1222. The plurality of first layer holes 1222 are equally spaced along the circumference of the carrier 1 or are connected in a ring along the circumference of the carrier 1, and / or the plurality of second layer holes 1224 are equally spaced along the circumference of the carrier 1 or are connected in a ring along the circumference of the carrier 1. Further, the plurality of guide vanes 14 include inner guide vanes 142 disposed at the edge of the second layer holes 1224 and outer guide vanes 144 disposed at the edge of the first layer holes 1222.

[0063] In this embodiment, the plurality of first through holes 122 are distributed radially in at least two layers. This simplifies the overall structure of the bottom wall 12 of the carrier 1. The guide vanes 14 can also correspond to the inner guide vane 142 and the outer guide vane 144, which are arranged in layers. The plurality of first through holes 122 in the same circumferential direction can be evenly spaced circumferentially or connected to each other in a ring shape along the circumference of the carrier 1. For example, the first layer of holes 1222 or the second layer of holes 1224 can include a large annular hole or be composed of a plurality of spaced first through holes 122.

[0064] In any of the above embodiments, optionally, each first through hole 122 is provided with a guide vane 14, that is, the hole provided with the guide vane 14 is the first through hole 122.

[0065] In any of the above embodiments, optionally, the bottom wall 12 and the guide vane 14 are an integral structure, thereby ensuring the connection strength between the bottom wall 12 and the guide vane 14.

[0066] In any of the above embodiments, optionally, the first through hole 122 is a stamping hole, and the guide vane 14 is a stamping flange formed on the bottom wall 12 when the stamping hole is formed by stamping.

[0067] In this embodiment, the first through hole 122 can be formed on the bottom wall 12 by stamping. At the same time, the stamped-out flange can be directly used for the guide vane 14 during the stamping process, so that the first through hole 122 and the guide vane 14 can be processed together, which simplifies the processing steps of the carrier 1 and reduces the processing cost of the carrier 1.

[0068] In any of the above embodiments, optionally, as Figure 1 and Figure 2 As shown, the distance between the centerline of any first through hole 122 and the center of the bottom wall 12 is less than the distance between the first through hole 122 and the edge of the bottom wall 12.

[0069] In this embodiment, the first through holes 122 are concentrated in the inner part of the bottom wall 12, so that more airflow can reach the central area of ​​the bottom and avoid the airflow being concentrated at the edge of the carrier 1.

[0070] In any of the above embodiments, optionally, as Figure 1 , Figure 2 and Figure 1 As shown, the angle between the guide vane 14 and the axial direction of the carrier 1 is greater than or equal to 30° and less than or equal to 60°. And / or, the angle α between the guide vane 14 and the outer wall surface 120 of the bottom wall 12 is greater than or equal to 30° and less than or equal to 60°.

[0071] In this embodiment, the upper wall surface of the bottom wall 12 of the carrier 1 can be used to form a cooking cavity to accommodate food. The lower wall surface (outer wall surface 120) of the carrier 1 is used to form an air duct. When designing the tilt angle of the guide vane 14, the axial direction of the carrier 1 can be used as a reference to make the guide vane 14 form an angle of 30°-60° with the vertical direction (or with the bottom wall 12 of the carrier 1). At the same time, when designing the tilt angle of the guide vane 14, the outer wall surface 120 (lower wall surface) of the bottom wall 12 of the carrier 1 can also be used as a reference to make the guide vane 14 form an angle of 30°-60° with the vertical direction or with the outer wall surface 120 of the bottom wall 12.

[0072] When the guide vane 14 is set at a 45° angle relative to the carrier 1, some airflow can pass vertically through the first through hole 122 under the reflection of the guide vane 14. When the tilt angle of the guide vane 14 relative to the outer wall surface 120 is less than 45°, the reflection direction of the airflow points towards the central axis of the carrier 1, so that the reflected airflow can gather at the center of the inner side of the carrier 1. Therefore, by reasonably setting the angle of the guide vane 14, the reflection direction of the airflow can also be controlled, ensuring the opening size of the first through hole 122, and controlling the guiding and reflecting effects of the guide vane 14 on the airflow. In this way, the ratio between the airflow that enters the first through hole 122 through the guide vane 14 and the airflow that gathers towards the center of the inner side of the carrier 1 after being reflected by the guide vane 14 can be more accurately divided, and the positions of different airflows entering the inner side of the carrier 1 can be controlled so that the airflow can be distributed more evenly on the inner side of the carrier 1.

[0073] Optionally, the guide vane 14 can rotate relative to the carrier 1 to adjust the angle between the guide vane 14 and the outer wall surface 120 of the bottom wall 12. That is, the guide vane 14 can be rotatably mounted on the carrier 1 to adjust the angle between the guide vane 14 and the outer wall surface 120 of the bottom wall 12. Optionally, the guide vane 14 can rotate around the connecting portion, which connects the guide vane 14 and the carrier 1.

[0074] In this embodiment, the guide vane 14 can rotate relative to the carrier 1. By rotating the guide vane 14, the angle between the guide vane 14 and the outer wall surface 120 of the bottom wall 12 of the carrier 1 can be adjusted, thereby controlling the reflection direction of the airflow and the guiding direction of the airflow by the guide vane 14. This allows the direction of the airflow when passing through the first through hole 122 (i.e., the air intake direction) to be adjusted, thereby adjusting the distribution position of the airflow inside the carrier 1 after passing through the first through hole 122. This allows the airflow distribution inside the carrier 1 to be reasonably adjusted according to the distribution of the food.

[0075] In one specific embodiment, the guide vane 14 includes a connecting portion and a rotating portion, and the guide vane 14 is connected to the carrier 1 through the connecting portion. The rotating portion is rotatable relative to the connecting portion.

[0076] In one specific embodiment, the guide vane 14 can be mounted on the carrier 1 via a mounting shaft. The mounting shaft can be fixedly mounted on the carrier 1. In this case, the guide vane 14 can rotate relative to the mounting shaft to adjust the angle of the guide vane 14 relative to the carrier 1. Alternatively, the mounting shaft can also rotate relative to the carrier 1. The guide vane 14 and the mounting shaft are fixedly connected or are an integral structure. In this case, the guide vane 14 and the mounting shaft can rotate as a whole relative to the carrier 1.

[0077] Optionally, air cooking appliances include air fryers.

[0078] Optionally, such as Figure 2 andFigure 3 As shown, the air fryer also includes a frying drum 5. When the container 1 is installed inside the frying drum 5, an air passage is formed between the container 1 and the inner wall of the frying drum 5, and / or, an air passage penetrating the container 1 is provided on the side of the container 1 that is close to the frying drum 5 in the radial direction.

[0079] The hot airflow generated by the air cooking appliance can enter between the bottom wall 12 of the container 1 and the bottom of the frying bucket 5 through the air passage.

[0080] Optionally, the air-cooking appliance includes: a housing 2 with a receiving cavity formed inside; a frying drum 5 detachably installed in the receiving cavity, with a food inlet / outlet on one side of the frying drum 5; a hot air fan 3 rotatably installed in the receiving cavity and located on the side of the frying drum 5 with the food inlet / outlet, the hot air fan 3 being used to circulate the airflow within the frying drum 5; a reflector installed in the receiving cavity and located on the side of the hot air fan 3 away from the frying drum 5; and a heating device 4 installed in the receiving cavity and located on the side of the reflector closer to the frying drum 5, for heating the airflow. The food carrier 1 is installed inside the frying drum 5.

[0081] In this embodiment, the air-cooking appliance includes a housing 2 with a receiving cavity formed inside. A removable frying drum 5 and a hot air assembly for heating and generating a hot airflow are disposed within the housing 2. The hot air assembly specifically includes a hot air fan 3 and a heating device 4. The hot air assembly is installed on the side of the frying drum 5 where the food inlet / outlet is located. The hot air generated by the hot air assembly can enter the frying drum 5 to heat the food inside. Simultaneously, a reflector is provided on the side of the hot air fan 3 away from the frying drum 5. The reflector is used to reflect and guide the airflow discharged by the hot air fan 3, allowing the airflow to enter the frying drum assembly.

[0082] The following section uses an air fryer as an example to further introduce the air-cooking appliances described in this application.

[0083] Air fryers use high-speed circulating hot air to heat food, and their temperature uniformity is one of the most important performance characteristics. If the air fryer does not reach the food at an even temperature, some parts of the food will be overcooked while others are undercooked, which will affect the taste and quality of the food.

[0084] In most of the related solutions, the working mode of an air fryer is that the heating element heats the air, the hot air fan 3 draws in the hot air and throws it out in all directions, and then the hot air spirals downwards through the channel between the food container and the frying drum to reach the bottom of the food container. Because there are holes at the bottom of the food container, the hot air comes into contact with the food through the openings, thereby heating the food.

[0085] As can be seen from the above description, in most air fryers, hot air spirals downwards through the channel between the frying drum and the food container. However, the bottom of most food containers is a flat surface. The hot air still spirals at the bottom of the container, with the outer ring rotating at a higher speed and reaching a higher temperature, while the inner ring rotates at a lower speed and reaches a lower temperature. This can result in food being hotter near the outer ring and colder near the center, leading to poor temperature uniformity.

[0086] like Figure 3 Figure 4 Figures 1 to 3 As shown, the air fryer consists of an outer shell 2, a hot air fan 3, a heating element 4, a frying drum 5, and a frying basket (for carrying food 1). The bottom of the frying basket has a rectangular opening, with guide vanes attached to the innermost opening. These guide vanes are formed during the stamping process of the opening. One side of the guide vane is connected to one side of the opening, and the guide vane forms a certain angle with the bottom of the frying basket. When the hot airflow reaches the bottom of the frying basket, it initially moves in a spiral motion. However, as it reaches the innermost circle, the guide vane guides part of the airflow out of the opening, which to some extent prevents the hot air from spiraling downwards, improving the efficiency of the airflow and reducing unnecessary heat loss. Another portion of the airflow is reflected at a certain angle by the guide vane and gathers in the inner space, reducing further spiral motion and facilitating faster escape in the central area, thus rapidly heating the food. This improves the thermal efficiency and temperature uniformity of the air fryer.

[0087] The guide vanes can be integrally machined with the openings of the frying basket to reduce costs. Alternatively, the guide vanes can be installed separately. The shape of the guide vanes and their openings is not limited. The size and number of guide vanes are not limited. The angle between the guide vanes and the bottom of the frying basket is not limited.

[0088] The air fryer proposed in this embodiment can effectively improve the efficiency of airflow and reduce unnecessary heat loss. It has the advantages of simple structure, easy design, and easy operation.

[0089] The structure described in this embodiment can be used in air fryers and other cooking containers, food processors, liquid heating processors, etc.

[0090] The wave shape of the baking pan is not limited to arcs; it can also be triangular or square waves, etc.

[0091] In the description of this specification, the terms "connection," "installation," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it 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 utility model according to the specific circumstances.

[0092] 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.

[0093] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An air cooking appliance, the air cooking appliance being capable of generating a hot airflow, characterized in that, The air cooking appliance includes: A carrier, the carrier including a bottom wall, the bottom wall having a first through hole; A guide vane is located on the edge of the first through hole, and the guide vane is disposed on the side of the first through hole near the center of the bottom wall; The first end of the guide vane is connected to the outer wall surface of the bottom wall, and the second end of the guide vane extends away from the outer wall surface of the bottom wall. The guide vane gradually approaches the edge of the bottom wall from the first end to the second end.

2. The air cooking appliance according to claim 1, characterized in that, A second through hole is provided on the bottom wall, and the second through hole is located inside the plurality of first through holes along the radial direction of the loading component, and / or a third through hole is provided on the bottom wall, and the third through hole is located outside the plurality of first through holes along the radial direction of the loading component.

3. The air cooking appliance according to claim 1, characterized in that, The number of the first through holes is multiple, and the multiple first through holes are equally spaced along the circumference of the carrier; and / or The first through hole includes an annular hole arranged in a ring shape along the circumference of the carrier.

4. The air cooking appliance according to claim 3, characterized in that, The plurality of first through holes include a plurality of first layer holes and a plurality of second layer holes, wherein the second layer holes are located outside the first layer holes along the radial direction of the carrier; Multiple first-layer holes are equally spaced along the circumference of the carrier or multiple first-layer holes are connected in a ring along the circumference of the carrier, and / or multiple second-layer holes are equally spaced along the circumference of the carrier or multiple second-layer holes are connected in a ring along the circumference of the carrier. The plurality of guide vanes include an inner guide vane disposed at the edge of the second layer hole and an outer guide vane disposed at the edge of the first layer hole.

5. The air cooking appliance according to claim 1, characterized in that, The bottom wall and the guide vane are an integral structure; Each of the first through holes is provided with a corresponding guide vane.

6. The air cooking appliance according to claim 1, characterized in that, The first through hole is a stamping hole, and the guide vane is a stamping flange formed on the bottom wall when the stamping hole is formed by stamping.

7. The air cooking appliance according to claim 1, characterized in that, The distance between the centerline of any of the first through holes and the center of the bottom wall is less than the distance between the first through hole and the edge of the bottom wall.

8. The air-cooking appliance according to any one of claims 1 to 7, characterized in that, The angle between the guide vane and the axis of the carrier is greater than or equal to 30° and less than or equal to 60°; and / or The angle between the guide vane and the outer wall surface of the bottom wall is greater than or equal to 30° and less than or equal to 60°.

9. The air-cooking appliance according to any one of claims 1 to 7, characterized in that, The guide vane can rotate relative to the load to adjust the angle between the guide vane and the outer wall surface of the bottom wall.

10. The air-cooking appliance according to any one of claims 1 to 7, characterized in that, The air cooking appliance also includes a frying drum. When the container is installed inside the frying drum, an air passage is formed between the container and the inner wall of the frying drum, and / or, an air passage penetrating the container is provided on the side of the container near the frying drum in the radial direction.

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