CN114209220A - Variable cooking apparatus with air frying function - Google Patents

Abstract

The invention belongs to the technical field of kitchen electrical equipment, and particularly provides a variable cooking device with an air frying function, which comprises: a cooking body formed with a cooking chamber; the fan cover assembly comprises a first air return opening and a first air supply opening; a fry basket formed with a fry chamber; wherein the fry basket has a second air supply outlet so that air in the fry chamber passes through the second air supply outlet to the first air return outlet; wherein the fry basket has a second air return so that at least a portion of the air delivered through the first air supply outlet reaches the fry chamber through the second air return; the first air return opening and/or the second air supply opening are/is of a structure with adjustable communication parameters. With this arrangement, the function of air-frying can be realized by the flow mode of external circulation of hot air flow. And the circulation mode of hot air flow can be further optimized by adjusting the communication parameters.

Description

Variable cooking apparatus with air frying function

Technical Field

The invention relates to the technical field of kitchen electrical equipment, in particular to variable cooking equipment with an air frying function.

Background

The air fryer is used as kitchen electrical equipment of new jin food class, and the working principle of the air fryer is that hot air flow replaces hot oil which is originally used for frying, the hot air flow circulates in a closed space (a frying basket), and grease of food materials is used for frying the food materials. Since no new grease is introduced, it is equivalent to frying by air from the viewpoint of whether or not grease is introduced. However, in the commercially available air fryer, during the frying process of the food material, the hot air path of the hot air flow in the frying basket is mainly promoted as the hot air flow is continuously blown to the surface layer of the food material, and the hot air flow often cannot penetrate through the food, so that the utilization rate of the hot air has a certain promotion space.

With the advent of kitchen appliances that correspond to various cooking modes (e.g., steaming, baking, frying, etc.), there has also been a multi-functional cooking appliance that includes air frying. Namely: the air frying and one or more cooking modes are integrated in one cooking device, so that one cooking device can realize multiple cooking modes. Such as:

chinese utility model patent (CN213786957U) discloses a multifunctional oven, and specifically discloses the following: the oven door is hinged on the oven shell, a baking cavity consisting of a U-shaped liner, a bottom back plate and the oven door is arranged in the oven shell, the U-shaped liner and the bottom back plate form an oven outer cavity, heating pipes are respectively arranged on the inner top surface of the U-shaped liner of the baking cavity and the bottom surface of the bottom back plate, a top shaded pole motor is arranged at the top of the U-shaped liner, it is used for radiating upside fan including one end oven outer cavity intercommunication, one end and roast chamber intercommunication make the downside fan that the air flows when the air is fried, another vent of upside fan and downside fan sets up on the rear panel of end back plate, it is equipped with detachable air and fries the dish to roast intracavity, the gridion, fry in shallow oil the dish, four sides of oven shell are equipped with a plurality of shell through-holes, be equipped with on the oven shell to the oven outer cavity, upside fan air supply realizes radiating outer cavity forced draught blower, it has realized that an oven multiple use function and oven outer cavity have strong heat dissipation and has fallen wet function.

When food needs to be fried by air, the heating pipe on the inner top surface of the U-shaped liner of the baking cavity works, and meanwhile, the top shaded pole motor above the heating pipe supplies air to the baking cavity to drive the air in the baking cavity to flow, so that the heat efficiency of the baking cavity is balanced, and the flowing air flows into the air channel of the lower side fan from the lower side of the top shaded pole motor and then is discharged. It can be seen that the multifunctional oven of this document can realize three cooking functions of baking, air-frying and frying. However, when the cooking function of air frying is completed, the hot air path of the hot air flow in the frying basket is basically the same as that of the air frying pan with single function, so that the utilization rate of the hot air is also improved to a certain extent similarly to the condition of the air frying pan with single function.

Accordingly, there is a need in the art for a new solution to the above problems.

Disclosure of Invention

Technical problem

To at least partially solve the above problems of the prior art, in particular: in the multifunctional cooking equipment with the air frying function, when the cooking function of air frying is finished, the hot air path of hot air in the frying basket is basically the same as that of the air frying pot with the single function, so that the condition similar to that of the air frying pot with the single function is adopted, during the frying of food materials to be cooked, the hot air path of the hot air in the frying basket is mainly improved as the hot air is continuously blown to the surface layer of the food materials to be cooked, the hot air cannot penetrate through the food, and therefore, the problem that the utilization rate of the hot air has certain space improvement exists, and the invention is provided.

Technical scheme

In view of the above, the present invention provides a variable cooking apparatus with an air-frying function added thereto, the cooking apparatus including: 1) a cooking body formed with a cooking chamber; 2) a fan guard assembly capable of heating air and including a first return air opening to allow air to flow out of the cooking chamber and a first supply air opening to allow air to flow into the cooking chamber; and 3) a fry basket removably disposed to the cooking chamber, the fry basket forming a fry chamber for holding food material to be cooked; the frying basket is provided with a second air supply opening corresponding to the first air return opening, so that the air in the frying chamber can reach the first air return opening through the second air supply opening; wherein the fry basket has a second air return opening corresponding to the first air supply opening so that at least a portion of the air supplied through the first air supply opening reaches the fry chamber through the second air return opening; the first air return opening and/or the second air supply opening are/is of a structure with adjustable communication parameters.

With this arrangement, the air can be fried in an externally circulating flow.

Specifically, the second air supply opening and the second air return opening, which correspond to the first air supply opening and the first air supply opening provided in the basket, define a flow path of hot air flow of the frying chamber → the second air supply opening → the first air return opening → the first air supply opening → the second air return opening → the frying chamber, and therefore, the food to be cooked can be heated more favorably.

It can be understood that, those skilled in the art can flexibly set the form and number of the second air supply openings and the corresponding form of the second air return openings according to actual requirements. Such as may be: the frying basket is provided with two separated second air supply outlets which are directly aligned with the first air return opening; the frying basket is provided with two second air supply openings, one second air supply opening is aligned with the first air return opening, the frying basket is provided with two separated second air supply openings, and the other second air supply opening is not aligned with the first air return opening; the fry basket has two separate second air outlets, one of which is directly aligned with the first air return; the other second supply port is switchable between alignment and misalignment with the first return air port; and the like.

It can be understood that, a person skilled in the art can flexibly set the corresponding form of the second return air inlet and the first supply air outlet according to actual requirements. Such as may be: in the hot air flow sent out by the first air supply outlet, if the hot air flow needs to return to the frying cavity again, the hot air flow can only return through the second air return outlet; the hot air flow sent out by the first air supply outlet can return through a second air return opening if the hot air flow needs to return to the frying cavity again, and can also return through the second air supply outlet (which can be sent back) or other original/newly-added structures; the second air return openings comprise a plurality of air return openings, and all hot air flow sent out by the first air supply opening is distributed to the second air return openings; and the like.

In addition, it can be understood that the structural form, the number and the arrangement position of the second air return openings in the frying basket can be flexibly arranged by a person skilled in the art according to actual requirements. Such as may be: setting the arrangement position of the second air outlet by taking the hot air flow as a target to penetrate through the food to be cooked; the second air return openings comprise a plurality of air return openings, and hot air flow can be tried to penetrate through the local or the whole of the food to be cooked in an expected mode through the cooperation of the air return openings at a plurality of positions; and the like.

On the basis, the circulation mode of hot air flow can be optimized by adjusting the communication parameters.

Specifically, by adjusting the communication parameters of the first air return opening and/or the second air supply opening, more appropriate hot air flow can flow in the external circulation path, so that the circulation mode of the hot air flow can be optimized, and on the basis, the adjusted hot air flow can be better adapted to the current cooking requirement.

It can be understood that, a person skilled in the art can flexibly select a specific form of the communication parameter according to actual requirements, such as different communication areas, communication shapes, and the like, and also different communication states. For example, the connected state may include non-connected, and partially connected; and the like. Furthermore, it is understood that a person skilled in the art may flexibly determine, according to actual needs, an implementation manner for adjusting the communication parameters of the first air return opening and/or the second air supply opening, such as movement of components, replacement of components, different combinations of components, and the like.

In a possible embodiment of the above variable cooking apparatus with additional air-frying function, the first air return opening and/or the second air supply opening comprise an open area formed on the respective fan guard assembly and/or the fry basket, the open area being provided with a communication portion by means of which the communication parameters of the first air return opening and/or the second air supply opening are adjustable.

Through the arrangement, a mode that the first air return opening and/or the second air supply opening realize adjustable communication parameters is provided.

It is understood that, a person skilled in the art may determine the structural form of the communicating portion and the specific manner of adjusting the communication parameters of the first air return opening and/or the second air supply opening according to actual situations, for example, the communicating portion may include one or more members, the specific shape, size, etc. of each member may be flexibly selected according to actual requirements, and the structure of the member is exemplarily an annular plate.

With the above-described variable cooking apparatus with an air-frying function added thereto, in one possible embodiment, the communication portion includes at least one communication unit that is removably provided to the open area.

By the arrangement, when the communication unit comprises a plurality of communication units, the communication parameters of the first air return opening and/or the second air supply opening can be adjusted by replacing different communication units.

With regard to the above-described variable cooking apparatus with an air-frying function added thereto, in one possible embodiment, the communication unit has a plurality of communication units forming the first return air opening and/or the second supply air opening.

By such an arrangement, a particular manner of forming the first return air opening and/or the second supply air opening is given.

It can be understood that, a person skilled in the art can flexibly set the structure and the number of the communicating single bodies, the relative positions of the communicating single bodies when the first air return opening and/or the second air supply opening are formed, and the like according to actual requirements. Further, the structures of the respective communicating monomers may be the same or different. Illustratively, the communication unit comprises 4 identical annular pieces (with a central angle of pi/2), the 4 annular pieces forming a circular hole in a pieced-together state.

With the above-described variable cooking apparatus with an air-frying function added thereto, in one possible embodiment, at least a part of the communication unit is movably provided to the open area in an assembled state.

With this arrangement, a specific form of changing the connectivity parameters is given.

In particular, a first return air opening and/or a second supply air opening communicating parameters can be formed when assembled in the default position. By means of this activity, certain adjustments can be made to the communication parameters of the first return air opening and/or the second supply air opening on the basis thereof. Thus, the first air return opening and/or the second air supply opening with richer communication parameters can be obtained by changing the communication unit and/or the movable communication unit.

It will be understood that the person skilled in the art can determine the movable part of the communication unit and the specific movement manner, such as rotation, movement and other resultant movements, according to the actual situation.

Taking the example where the communication unit includes a plurality of communication units, the first air return opening and/or the second air supply opening formed by the plurality of communication units may be changed by changing the position of one or more of the communication units with respect to the open region. Still taking the example of the aforementioned communication unit comprising 4 identical annular discs (with a central angle of pi/2), the first return air opening and/or the second supply air opening formed by the 4 annular discs is changed from one circular hole to "one circular hole + one annular hole" provided that one of them can rotate about its axis and rotate into a condition of being superposed on the other.

With the above-described variable cooking apparatus with an air-frying function added thereto, in one possible embodiment, at least a part of the communication unit is provided with a communication structure.

With such an arrangement, another specific form of changing the connection parameter is given by such an arrangement.

It is understood that a person skilled in the art may determine the portion of the communicating unit where the communicating structure is disposed, the specific form of the communicating structure, the distribution manner of the communicating structure on the communicating unit, etc. according to actual situations, for example, the communicating structure may be disposed in all regions or partial regions of the communicating unit, the communicating structure may be uniformly or uniformly distributed in corresponding regions when the communicating structure includes a plurality of communicating structures, each communicating structure may be the same or different, etc.

For convenience of description, taking the case that the aforementioned communication unit includes 4 identical annular pieces (with a central angle of pi/2) as an example, when one of the annular pieces (without communication holes) can rotate around its axis and rotate to a state of being overlapped with the other one (with multiple communication holes), the first air return opening and/or the second air supply opening formed by the 4 annular pieces is changed from "one circular hole + multiple communication holes" to "one circular hole + one annular hole", and at this time, due to the overlapping of the two annular pieces, the communication hole on the other annular hole is blocked by the annular piece without communication holes.

With regard to the above-described variable cooking apparatus with an air-frying function added thereto, in one possible embodiment, the first return air opening is provided at a position away from an operator in the cooking chamber, the second supply air opening is provided at a position facing the first return air opening, and the second return air opening is provided at a position near a bottom region of the fry basket.

With this arrangement, a specific relative position of the second supply port and the second return port is given.

Specifically, the outer circulation path of the hot air flow mainly includes the second air supply opening → the first air return opening → the first air supply opening → the second air return opening → the second air supply opening, and in the return path of the outer circulation path (i.e., the second air supply opening → the second air return opening section associated with the basket), the included angle between the second air supply opening and the second air return opening is about 0 ° if the second air supply opening and the second air return opening are substantially at the same position (e.g., similar to the inner circulation mentioned in the background art), and in this case, the hot air flow is circulated in an easier passing manner of "blowing directly to the surface layer of the material to be cooked" and returning. The turning arrangement can limit the circulation mode of the hot air flow to a certain extent, for example, at least the length of the path is increased or the large conversion of the path is ensured to be a necessary event, so that the possibility that the hot air flow penetrates through the food to be cooked when passing through the turning road section is increased.

For the above variable cooking apparatus with an air fryer function, in one possible embodiment, the fan guard assembly comprises: a fan guard disposed within the cooking chamber; wherein the fan guard is provided with a heating member and a fan at a side away from an operator and is formed with a hot air chamber so that: under the action of the fan, air in the frying chamber reaches the hot air chamber through the first air return opening, is heated by the heating member and then is guided to the first air supply opening.

By means of the arrangement, a specific structure form of the fan cover assembly is given.

With respect to the above-described variable cooking apparatus with an air-frying function, in one possible embodiment, the cooking body includes a back plate, and the fan guard and the back plate form the hot air chamber.

By means of this arrangement, a specific design of the hot air chamber is given.

In a possible embodiment, the first air return opening is disposed near a middle of the fan cover, the fan is a centrifugal fan, and the first air supply opening includes a plurality of air supply openings distributed outside the first air return opening, so as to: and under the action of the centrifugal fan, the air sucked into the hot air chamber through the first air return opening is thrown to the first air supply opening.

With this arrangement, a specific relative position between the first return air opening and the first supply air opening is given.

Drawings

The variable cooking apparatus with an air-frying function according to the present invention will be described below with reference to the accompanying drawings, in which, in conjunction with an oven with an air-frying function (hereinafter, referred to as an oven), only the return air parameter of the first return air opening is adjustable. In the drawings:

FIG. 1 illustrates a schematic structural view of an oven according to an embodiment of the present invention;

FIG. 2 is a schematic view of the internal structure of an oven incorporating one embodiment of the present invention, primarily illustrating a fry basket and blower housing assembly;

FIG. 3 illustrates a schematic structural view of a hood assembly in an oven according to an embodiment of the present invention; and

figure 4 shows a schematic structural view of a fry basket in an oven in accordance with one embodiment of the present invention.

List of reference numerals

100. An oven; 1. a cooking body; 11. a back plate; 2. a fan guard; 21. an open area; 211. a fan-shaped sheet; 212. a communicating structure; 22. a first air supply outlet; 23. a motor; 24. a fan; 25. a heating coil; 3. a frying basket; 31. a second air supply outlet; 32. a second air return inlet; 33. a tubular structure; 34. a stirring rod; 35. a linking structure.

Detailed Description

Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. For example, although the present embodiment is described in connection with the return air parameter being adjustable only for the first return air opening, this is not intended to limit the scope of the present invention, and one skilled in the art could also configure the second return air opening in such a way that the return air parameter is adjustable, etc. without departing from the principles of the present invention. In addition, the specific form of configuring the first air return opening in a posture-invariable manner by using 4 sectors having a communicating structure adopted in the present embodiment is merely an example, and those skilled in the art may adopt other manners according to actual needs, such as changing the communicating structure into a plurality of communicating holes, changing the sectors into movable ones, and the like.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The singular forms "a", "an" and "the" may include the plural forms as well.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Furthermore, while numerous specific details are set forth in the following description in order to provide a better understanding of the invention, it will be apparent to those skilled in the art that the invention may be practiced without some of these specific details. In some instances, oven principles and the like, which are well known to those skilled in the art, have not been described in detail in order to not unnecessarily obscure the present invention.

Referring to fig. 1 to 4, fig. 1 is a schematic view illustrating a structure of an oven according to an embodiment of the present invention, fig. 2 is a schematic view illustrating an internal structure of an oven according to an embodiment of the present invention, fig. 3 is a schematic view illustrating a hood assembly in an oven according to an embodiment of the present invention, and fig. 4 is a schematic view illustrating a structure of a fry basket in an oven according to an embodiment of the present invention. As shown in fig. 1 to 4, oven 100 mainly comprises a cooking body 1, a fan guard assembly capable of achieving circulation of hot air flow, and a fry basket 3 used during the time that the oven achieves its air-fry function. Wherein, the cooking body 1 is formed with the culinary art cavity (like the inner bag), and frying basket 3 is formed with the system cavity of frying, after the edible material that will wait to cook is placed in the system cavity of frying, places frying basket 3 in the settlement position of inner bag to accomplish the culinary art of the edible material of waiting to cook with the mode of air-fried. For example, the frying basket can be directly placed on the original grill of the oven, or a special fixing structure is configured for the frying basket, etc. A back plate 11 is arranged on one side (such as a back side) of the inner container, which is far away from an operation side (such as the operation side is a side facing the user, and generally referred to as a front side), a fan cover 2 is installed on the back plate, a hot air cavity is formed between the fan cover 2 and the back plate, the fan cover is provided with a first air return opening at a position close to the middle of the fan cover, a first air supply opening 22 is arranged outside the first air return opening, and an air supply area is arranged in a mode of surrounding the air return area so as to more uniformly distribute air carrying heat to the surface of food materials, so that the food materials to be baked are cooked.

Wherein, a fan is arranged in the hot air chamber at a position corresponding to the first return air port, and the fan comprises a driving motor 23 and a fan 24. The motor rotates to drive the fan to rotate at a position facing the first air return opening, and the rotation of the fan can enable air in the inner container to flow through the first air return opening and enter the hot air chamber. Illustratively, to ensure operational stability of the fan, the center of the fan disk of the fan substantially coincides with the center of the first return air opening (i.e., the center of the fan guard). And a heating coil 25 is also arranged in the hot air chamber at a position corresponding to the first return opening, and the air in the inner container can be heated by the heating coil after being sucked into the hot air chamber through the first return opening by the fan.

Particularly, in the invention, the first air return opening is a structure with adjustable communication parameters. Specifically, the fan cover is formed with an open region 21 at a position corresponding to the first return air opening, the open region being provided with a communication portion composed of a plurality of communication units, wherein each of the communication units is removably provided in the open region. In this way, the communication parameters of the first return air opening can be adjusted by replacing different communication units, such as the communication parameters at least including the communication area (the total area of the macro), the communication area (the specific position corresponding to the macro area), and the like.

In this embodiment, the open area is roughly a large circular hole, and the currently selected communication unit includes 4 sectors 211, each of which is provided with a pointed communication structure 212. In the assembled state, the 4 cusp-shaped communicating structures arranged on the 4 segments form the first air return opening in the current state. As the current choice is suited to such cooking requirements: the food material to be cooked needs to radiate heat to its surface at a high flow rate of hot air.

Obviously, the specific form of the communication unit is only an exemplary choice, and those skilled in the art can construct other first air return openings according to actual needs. In addition, when no communicating unit is selected, the first air return opening is the open area itself, and obviously, the normal flow of the hot air flow can be realized by the selection.

In the present embodiment, the first blowing port 22 includes a plurality of blowing points, such as substantially strip-shaped holes. Illustratively, the fan guard includes a plate portion and a flange extending from the plate portion in a direction adjacent to the back plate 11, the back plate, the flange and the plate portion thereby forming the hot air chamber. The air supply points comprise a plurality of air supply points arranged on the turned-over edge and three groups arranged on the plate-shaped structure from top to bottom, and each group comprises a small group which is symmetrically arranged on the two sides of the first air return opening in a left-right mode. The number of the air supply points included in each group is gradually reduced from top to bottom. Specifically, the upper group comprises small groups which are symmetrically arranged and are composed of 8 air supply points, wherein the left side and the right side of the small groups are respectively arranged at two sides of the first air return opening. The middle group includes 3 and the lower group includes 2. Obviously, the specific configuration of the first air supply outlet is just a specific example, and those skilled in the art can flexibly adjust the configuration according to actual requirements.

It can be understood that, along with the adjustment of the first air return opening, the air supply parameters such as the air supply area and the air supply direction of the first air supply opening can be adjusted accordingly. If the shielding structures (such as strip-shaped sheets) which can be turned up and down can be configured for each group, the air supply parameters can be adjusted adaptively by turning over the shielding structures while the return air area is increased or decreased.

Wherein the fry basket 3 is removably arranged in the liner so that the fry basket can be put into or taken out of the liner at any time. The fry basket is roughly a cylindrical structure, the side wall of the cylindrical structure is provided with a second air supply outlet 31, and the bottom wall of the cylindrical structure is provided with a second air return outlet 32. Wherein, the second supply-air outlet 31 links up with aforementioned first return air inlet, and second return air inlet 32 links up with aforementioned first supply-air outlet, specifically: the air of the frying chamber can reach the first air return opening through the second air supply opening, and at least one part of the air sent to the inner container through the first air supply opening can reach the frying chamber through the second air return opening.

In the embodiment, the second air return opening 32 is a mesh grid, and the second air supply opening 31 is an open area substantially aligned with the first air return opening, such as a square opening substantially completely covering the first air return opening. Obviously, similar to the first air return opening and the first air supply opening, the specific configuration of the second air return opening and the second air supply opening is only a specific example, and those skilled in the art can flexibly adjust the configuration according to actual needs.

Preferably, the present invention provides a stirring member, such as a stir bar 34 in this embodiment, within the fry basket. In this way, the foodstuff can be stirred during the implementation of the air-frying. Thus avoiding the occurrence of operations: traditional air fryer is during cooking the edible material, when certain duration, need take out the fried basket and shake the edible material of waiting to cook.

Preferably, the present invention forms a shaped engagement structure 35, such as a streamline or star-like structure in the figures, on the inside of the top of the fry basket to better reflect and direct hot air reaching the top of the fry basket in a direction toward the second supply port.

Thus, under the action of the fan, hot air enters the hot air chamber from the first air return opening in the middle of the fan cover and is heated, then is distributed to the inner container in a peripheral diffusion mode through all air supply points of the first air supply opening 22, then reaches the frying basket chamber through the second air return opening 32 at the bottom of the frying basket and penetrates through food materials to be cooked, and then is conveyed to a position corresponding to the first air return opening through the second air supply opening 31 at the side part of the frying basket, so that an outer circulation path of the hot air is formed.

It can be seen that the outer circulation path of the hot air flow mainly includes a section between the second supply port and the first return port (referred to as section 1), a section between the first return port and the first supply port (referred to as section 2), a section between the first supply port and the second return port (referred to as section 3), and a section between the second return port and the second supply port (referred to as section 4).

In the oven, the second air return opening and the second air supply opening are respectively arranged at the bottom and the side part of the cylindrical structure (an included angle is formed between the second air return opening and the second air supply opening), so that when hot air flows through the section 4, most of the hot air can be heated in a manner of penetrating through the food to be cooked layer by entering the food to be cooked from the bottom, and the utilization rate of the hot air is improved.

To further optimize the outer circulation path, a restriction is introduced in section 1 in this embodiment. Specifically, in the state where the fry basket is in place, the second air supply opening 31 is substantially aligned with the first air return opening with a certain clearance (e.g., within about 5 cm). In order to reduce or avoid the overflow of the hot air flow caused by the existence of the gap when the hot air flow flows through the aforementioned section 1 (once the overflow occurs, the hot air flow participating in the external circulation is reduced, which affects the performance of the external circulation to a certain extent), in the present embodiment, the constraint portion is a cylindrical structure 33 disposed in the entire circumference direction corresponding to the second air supply opening, and the macroscopic shape of the cross section of the cylindrical structure 33 is a square, square microstructure completely surrounding the first air return opening, and is a wave line. Therefore, the hot air flow can be effectively prevented from diffusing to the periphery when flowing through the section 1, the diffusion of the hot air flow can not only reduce the hot air flow which accurately participates in the external circulation, but also can cause that the part of the hot air flow enters the frying chamber through the second air return opening at the bottom together with the heated hot air flow which is sent into the inner container through the first air supply opening before being heated, and the quality of the external circulation is influenced. In addition, the arrangement of the cylindrical structure 33 can also prevent the hot air sent to the inner container from flowing back to the frying chamber through the second air supply opening to a certain extent, so that the phenomenon that the external circulation is damaged caused by the hot air can be avoided.

Obviously, the above-mentioned cylindrical structure is only an exemplary description of the constraining portion, and those skilled in the art can flexibly construct the constraining portion according to actual requirements. Such as one or more flaps, which may be non-circumferentially disposed, etc.

Furthermore, although not mentioned in the present embodiment, a person skilled in the art may add a restriction also to section 3 in order to optimize the quality and performance of the hot gas flow during its flow through section 3. It will be appreciated that the form of the restrictions provided in sections 1 and 3 may be the same or different.

It can be seen that in the inventive oven, an increase in air frying functionality is achieved through the configuration of the fry basket. On the basis, the second air supply outlet and the second air return outlet of the frying basket are set, so that an external circulation path of hot air flow of the oven during air frying is constructed. Based on this outer circulation route, can increase the probability that the hot-blast stream pierces through the edible material of waiting to cook layer by layer, improved hot-blast utilization ratio on this basis, improved the culinary art performance of oven. In addition, different cooking requirements are often required to be made for different food materials to be cooked, and different cooking requirements can be better met by adjusting the communication parameters of the first air return opening.

So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.

Claims (10)

1. A variable cooking apparatus with an air-frying function added thereto, the cooking apparatus comprising:

1) a cooking body formed with a cooking chamber;

2) a fan guard assembly capable of heating air and including a first return air opening to allow air to flow out of the cooking chamber and a first supply air opening to allow air to flow into the cooking chamber; and

3) a fry basket removably disposed in the cooking chamber, the fry basket forming a fry chamber for holding food material to be cooked;

the frying basket is provided with a second air supply opening corresponding to the first air return opening, so that the air in the frying chamber can reach the first air return opening through the second air supply opening;

wherein the fry basket has a second air return opening corresponding to the first air supply opening so that at least a portion of the air supplied through the first air supply opening reaches the fry chamber through the second air return opening;

the first air return opening and/or the second air supply opening are/is of a structure with adjustable communication parameters.

2. The cooking apparatus according to claim 1, wherein the first air return opening and/or the second air supply opening comprise an open area formed on the respective fan guard assembly and/or the fry basket, the open area being configured with a communication by means of which the communication parameters of the first air return opening and/or the second air supply opening are adjustable.

3. The cooking apparatus according to claim 2, wherein the communication portion includes at least one communication unit which is removably provided to the open area.

4. The cooking apparatus according to claim 3, wherein the communication unit has a plurality of communication units forming the first air return opening and/or the second air supply opening.

5. A cooking apparatus according to claim 3, wherein at least a portion of the communication unit is movably disposed in the open area in an assembled state.

6. The cooking apparatus according to claim 3, wherein a communication structure is provided on at least a portion of the communication unit.

7. The cooking apparatus of claim 1, wherein the first air return opening is disposed in the cooking chamber away from the operator, the second air supply opening is disposed facing the first air return opening, and the second air return opening is disposed proximate a bottom region of the fry basket.

8. The cooking apparatus of claim 1, wherein the fan guard assembly comprises:

a fan guard disposed within the cooking chamber;

wherein the fan guard is provided with a heating member and a fan at a side away from an operator and is formed with a hot air chamber so that:

under the action of the fan, air in the frying chamber reaches the hot air chamber through the first air return opening, is heated by the heating member and then is guided to the first air supply opening.

9. The cooking apparatus of claim 8, wherein the cooking body includes a back plate, the fan guard and the back plate forming the hot air chamber.

10. The cooking apparatus of claim 8, wherein the first air return opening is disposed proximate a middle portion of the fan guard,

the fan is a centrifugal fan, the first air supply outlet comprises a plurality of air supply outlets distributed on the outer side of the first air return outlet, so that:

and under the action of the centrifugal fan, the air sucked into the hot air chamber through the first air return opening is thrown to the first air supply opening.

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