Steaming oven

Abstract

The invention discloses a steaming oven which comprises an oven body, a steam generation assembly and a secondary heating assembly. A cooking cavity is defined in the box body; the steam generation assembly is arranged outside the box body and communicated with the cooking cavity through the top wall of the box body, and the steam generation assembly is used for conveying generated steam into the cooking cavity; the secondary heating assembly is arranged in the cooking cavity, opposite to the top wall of the box body and used for conducting secondary heating on the steam conveyed into the cooking cavity by the steam generation assembly, the contact temperature of the steam and food materials can be increased, and the cooking effect is improved.

Description

Technical Field

[0001] The present invention relates to the field of kitchen equipment, in particular to a steam oven. Background Art

[0002] In the related art, most cooking utensils that cook food by steam use a steam generator to generate steam, and inject the steam into a cooking cavity to steam the food.

[0003] However, steam easily cools down during the transportation path, and the temperature reaching the surface of the food is low, resulting in low heat exchange efficiency and longer cooking time. After steaming for a long time, not only does the taste of the food deteriorate, but its amino acids and vitamins are also lost, which is not conducive to the retention of the nutritional components of the food. Summary of the Invention

[0004] The main purpose of the present invention is to provide a steam oven, which can increase the temperature at which steam contacts food and improve the cooking effect.

[0005] To achieve the above-mentioned objectives, the present invention proposes a steam oven, comprising a box body, a steam generating assembly and a secondary heating assembly; the interior of the box body defines a cooking cavity; the steam generating assembly is arranged outside the box body and is connected to the cooking cavity through the top wall of the box body, and the steam generating assembly is used to transport the generated steam into the cooking cavity; the secondary heating assembly is arranged in the cooking cavity and opposite to the top wall of the box body, and is used to secondary heat the steam transported to the cooking cavity by the steam generating assembly.

[0006] In one possible implementation, the secondary heating component includes:

[0007] a flow guide cover, disposed in the cooking cavity and opposite to the top wall of the box body, for receiving the steam delivered to the cooking cavity by the steam generating assembly; and

[0008] The heating element is arranged on the deflector cover or on the outer peripheral side of the deflector cover to perform secondary heating on the steam.

[0009] In a possible implementation, the deflector cover is fixedly connected to the top wall of the box body and defines a deflector cavity with the top wall of the box body. The deflector cover also has a deflector hole connecting the deflector cavity and the cooking cavity.

[0010] In a possible implementation, the air guide cover includes:

[0011] a bottom shell, at least part of which is spaced apart from the top wall of the box body; and

[0012] A side shell is connected to the peripheral side of the bottom shell in a surrounding manner, and the side shell, the bottom shell and the top wall of the box body jointly define the guide cavity;

[0013] Wherein, the guide holes are arranged on the bottom shell and / or the side shell.

[0014] In a possible implementation, the air guide cover further includes:

[0015] A plurality of convex structures, wherein the convex structures are formed by the bottom shell protruding toward the top wall of the box body, and the plurality of convex structures are spaced apart from the side shell to form an annular guide channel;

[0016] The guide holes include a side shell guide hole provided on the side shell and communicating with the annular guide channel, and a first bottom shell guide hole provided on the bottom shell and communicating with the annular guide channel.

[0017] In a possible implementation, the plurality of side shell air guide holes are arranged in a ring shape, and / or the plurality of first bottom shell air guide holes are arranged in a ring shape.

[0018] In a possible implementation, two adjacent convex structures are spaced apart to define a central flow guide channel, the central flow guide channel is communicated with the annular flow guide channel, and the steam of the steam generating assembly is at least delivered to the central flow guide channel;

[0019] Wherein, the guide hole further includes a second bottom shell guide hole provided on the bottom shell and connected with the middle guide channel.

[0020] In a possible implementation, the top wall of the box body has a steam inlet connected to the steam generating assembly, and the steam inlet is arranged opposite to the middle guide channel; or

[0021] The steam generating assembly includes a steam generator and a steam delivery pipe connected to the steam generator. The steam delivery pipe passes through the top wall of the box body and extends above the central flow guiding channel or extends into the central flow guiding channel.

[0022] In a possible implementation, the air deflector is fixedly connected to the top wall of the box body through the side shell and / or the convex structure.

[0023] In one possible implementation, the heating element includes:

[0024] The first heating tube is arranged in an annular shape and is at least arranged in the annular guide channel.

[0025] In one possible implementation, the heating element includes:

[0026] The second heating tube is arranged in a ring shape, and one or more circles of the second heating tube are arranged on the outer peripheral side of the air guide cover.

[0027] A possible implementation also includes:

[0028] A bracket comprising a multi-layer supporting structure for supporting the steaming and baking tray; and

[0029] A fan assembly is arranged on the inner side wall of the box body and is spaced apart from the bracket. The fan assembly is used for blowing air into the cooking cavity.

[0030] In a possible implementation, the two groups of fan assemblies are respectively arranged on opposite sides of the bracket.

[0031] In the technical solution of the present invention, a steam generating assembly is disposed outside the housing and communicates with the cooking cavity through the top wall of the housing. The steam generating assembly is used to deliver the generated steam into the cooking cavity. In this way, steam for steaming food can be generated by the steam generating device. A secondary heating assembly is disposed within the cooking cavity and opposite the top wall of the housing, and is used to reheat the steam delivered by the steam generating assembly into the cooking cavity 11. By reheating the steam through the secondary heating assembly, the present application can effectively improve the temperature stability within the cooking cavity, increase the temperature of the steam in contact with the food, and enhance the heat exchange efficiency between the food and the steam, greatly improving the heating speed and taste of the food. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0033] Figure 1 A schematic structural diagram of a steam oven provided in an embodiment of the present application;

[0034] Figure 2 A schematic structural diagram of a steam oven provided in an embodiment of the present application from another perspective;

[0035] Figure 3 A cross-sectional view of a steam oven provided in an embodiment of the present application;

[0036] Figure 4 for Figure 3 A partial enlarged view of

[0037] Figure 5 This is a schematic structural diagram of a steam oven provided in an embodiment of the present application with the top plate and front panel removed;

[0038] Figure 6 A schematic structural diagram of a secondary heating assembly provided in an embodiment of the present application;

[0039] Figure 7 A schematic structural diagram of a deflector provided in an embodiment of the present application.

[0040] Description of Figure Numbers:

[0041] 100, steam oven; 10, housing; 11, cooking chamber; 111, chamber top wall; 113, chamber side walls; 115, chamber bottom wall; 13, steam inlet; 15, air outlet;

[0042] 20. Steam generating assembly; 21. Steam generator; 22. Steam delivery pipe;

[0043] 30. Secondary heating assembly; 31. Air guide cover; 311. Bottom shell; 312. Side shell; 313. Air guide cavity; 314. Air guide hole; 314a. Side shell air guide hole; 314b. First bottom shell air guide hole; 314c. Second bottom shell air guide hole; 315. Convex hull structure; 316. Annular air guide channel; 317. Central air guide channel;

[0044] 32. Heating element; 321. First heating tube; 322. Second heating tube;

[0045] 40. Bracket;

[0046] 50. Fan assembly.

[0047] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0048] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0049] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0050] In addition, the terms "first," "second," and so on, used in this disclosure are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referenced. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this disclosure, "plurality" means at least two, such as two or three, unless otherwise specifically defined.

[0051] In the present invention, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0052] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0053] In the related art, most cooking utensils that cook food by steam use a steam generator to generate steam, and inject the steam into a cooking cavity to steam the food.

[0054] However, steam easily cools down during the transportation path, and the temperature reaching the surface of the food is low, resulting in low heat exchange efficiency and longer cooking time. After steaming for a long time, not only does the taste of the food deteriorate, but its amino acids and vitamins are also lost, which is not conducive to the retention of the nutritional components of the food.

[0055] To resolve the above issues, please refer to Figures 1 to 3 , an embodiment of the present application proposes a steam oven 100 , which includes a box body 10 , a steam generating component 20 and a secondary heating component 30 .

[0056] The outer contour of the housing 10 can be square, and the housing 10 can be made of metal. For example, suitable exemplary metal materials that can be used include, but are not limited to, stainless steel and aluminum, etc., and the present embodiment is not limited thereto. When the housing 10 is made of stainless steel, it has the advantages of high strength, high temperature resistance, environmental protection and hygiene, etc. A cooking cavity 11 can be formed in the housing 10. It is understood that the housing 10 has a steam inlet 13 and an air outlet 15 connected to the cooking cavity 11, so that steam can flow into the cooking cavity 11 through the steam inlet 13, and finally flow out of the cooking cavity 11 through the air outlet 15 after flowing through the food in the cooking cavity 11, completing the complete steaming process of the food.

[0057] Please refer to Figures 3 and 4 In some structural forms, the steam inlet 13 can be provided on the cavity top wall 111 of the cooking cavity 11. It is understandable that in the daily usage habits of some users, the users will place the food to be steamed on a dinner plate, and then place the dinner plate with the food in the cooking cavity 11. Therefore, when the steam inlet 13 is provided on the cavity bottom wall 115 of the cooking cavity 11, as the steam moves from bottom to top, the steam will usually first contact the dinner plate and then contact the food. Since the temperature of the dinner plate is usually lower, the steam will contact the dinner plate first, which will reduce the heat of the steam itself and affect the steaming effect of the steam on the food. Therefore, in the form of the steam inlet 13 provided on the cavity top wall 111 of the cooking cavity 11, when the steam moves from top to bottom, the steam will first contact the food before contacting the tableware. This can effectively utilize the heat of the steam and improve the steaming effect of the steam on the food. Of course, in other structural forms, the steam inlet 13 can also be arranged on the bottom wall 115 of the cooking cavity 11. The embodiment of the present application does not limit this. The following content still uses the form of the steam inlet 13 being arranged on the top wall 111 of the cooking cavity 11 to further explain the situation in which the cooking utensil of the present application has a good steaming effect on food.

[0058] Please refer to Figure 1 , as an example, the air outlet 15 can be arranged below the cavity side wall 113 of the cooking cavity 11. In this way, when the steam flows out of the cooking cavity 11 and flows to the air outlet 15, its flow path will have a bend, that is, the steam will flow out from the steam inlet 13, flow in a top-down path, and then flow in a horizontal direction through the bend to flow to the air outlet 15. In this way, by providing a bend in the flow path, the flow rate of the steam can be appropriately reduced, and the downward pressure process of the steam is smoother, thereby preventing the steam from mixing with the air in the cooking cavity 11 before contacting the food, further preventing the heat of the steam from being dispersed, and at the same time helping to improve the discharge effect of the air originally located in the cooking cavity 11, avoiding the formation of air stagnation dead corners in the cooking cavity 11, thereby improving the steaming effect of the cooking equipment.

[0059] As another example, the air outlet 15 can also be arranged on the bottom wall 115 of the cooking cavity 11. In this way, by arranging the air outlet 15 below the cooking cavity 11, it is beneficial to improve the discharge effect of the air originally located in the cooking cavity 11, avoid the formation of air accumulation dead corners in the cooking cavity 11, and thereby improve the steaming effect of the cooking equipment. As another example, the air outlet 15 can also be arranged below the cavity side wall 113 of the cooking cavity 11 and on the cavity bottom wall 115 of the cooking cavity 11, that is, the number of the air outlet 15 can be at least two, one of which is arranged below the cavity side wall 113 of the cooking cavity 11, and the other is arranged on the cavity bottom wall 115 of the cooking cavity 11. In this way, when the steam flows out from the steam inlet 13 and flows to the air outlet 15, its flow path will have a bend, that is, the steam will flow out from the steam inlet 13, flow in a top-down path, and then flow in a horizontal direction through the bend to flow to the air outlet 15. In this way, by providing a bend in the flow path, the flow rate of the steam can be appropriately reduced, and the steam is prevented from contacting the air in the cooking cavity 11 too early before contacting the food, further preventing the heat of the steam from being dispersed, and at the same time it is beneficial to improve the discharge effect of the air originally located in the cooking cavity 11, avoid the formation of air stagnation dead corners in the cooking cavity 11, and thereby improve the steaming effect of the cooking device.

[0060] The steam generating assembly 20 is arranged outside the box body 10 and is connected to the cooking cavity 11 through the steam outlet on the top wall of the box body 10. The steam generating assembly 20 is used to transport the generated steam into the cooking cavity 11. In this way, steam for steaming food can be generated by the steam generating device.

[0061] In some structural forms, see Figure 3 and Figure 4 The steam generating assembly 20 includes a steam generator 21 and a steam delivery pipe 22 connected to the steam generator 21. The steam delivery pipe 22 passes through the top wall of the housing 10 and extends into the cooking cavity 11. This allows steam generated by the steam generating device to be delivered to the steam inlet 13 via the steam delivery pipe 22, preventing the steam from coming into contact with air outside the cooking cavity 11 during its journey from the steam generating device to the cooking cavity 11, which could result in the loss of steam energy. Furthermore, if the steam delivery pipe 22 becomes damaged over time, causing steam leakage, the user can replace the connecting pipe, thereby extending the service life of the steam oven 100.

[0062] Of course, in some other embodiments, the steam inlet 13 may be provided on the top wall of the box body 10 , and the steam delivery pipe 22 may be fixedly connected to the top wall of the box body 10 . In this way, the steam delivery pipe 22 may not extend into the cooking cavity 11 .

[0063] The secondary heating assembly 30 is disposed within the cooking cavity 11 and opposite the top wall of the housing 10. It is used to reheat the steam delivered to the cooking cavity 11 by the steam generating assembly 20. In this embodiment of the present application, the secondary heating assembly 30 reheats the steam, effectively improving the temperature stability within the cooking cavity 11. The secondary heating assembly 30 can quickly heat the steam to the desired temperature, making the cooking process more efficient. This shortens cooking time and improves work efficiency.

[0064] See also Figure 3 The secondary heating assembly 30 includes a flow guide cover 31 and a heating element 32.

[0065] The deflector 31 is disposed within the cooking cavity 11 and faces the top wall of the housing 10. It receives steam delivered to the cooking cavity 11 by the steam generating assembly 20. The deflector 31 is fixedly connected to the top wall of the housing 10 and defines a deflector cavity 313 with the top wall. The deflector 31 also includes a deflection hole 314 connecting the deflector cavity 313 with the cooking cavity 11. The deflector cavity 313 and deflection holes 314 defined by the deflector 31 effectively control the flow and distribution of steam. For example, the steam flow can be adjusted horizontally. This allows the steam to flow evenly due to the interaction between the deflector 31 and the walls of the cooking cavity 11, ultimately distributing the steam evenly. The deflector 31 in this embodiment of the present application effectively guides the steam for even distribution within the cooking cavity 11, ensuring uniform heating of the food. This helps prevent uneven heating of portions of the food during cooking, improving the cooking effect.

[0066] In some embodiments of this application, please refer to Figures 4 to 7 The deflector 31 includes a bottom shell 311 and a side shell 312. At least a portion of the bottom shell 311 is spaced apart from the top wall of the housing 10. The side shell 312 is connected to the circumference of the bottom shell 311 in a surrounding manner. The side shell 312, the bottom shell 311, and the top wall of the housing 10 jointly define a deflector cavity 313. In the embodiment of the present application, the deflector cavity 313 is jointly defined by the bottom shell 311, the side shell 312, and the top wall of the housing 10, which can effectively control the flow direction and distribution of steam, ensure uniform steam distribution in the cooking cavity 11, and improve the cooking effect.

[0067] Among them, see Figure 7 The guide holes 314 can be provided on the bottom shell 311, the side shell 312, or both. It is understood that those skilled in the art can choose to provide the guide holes 314 on the bottom shell 311 or the side shell 312, or even on both, according to specific needs, providing flexible design options to adapt to different cooking needs and conditions.

[0068] For further information, see Figure 7 The air deflector 31 further includes a plurality of convex structures 315. The convex structures 315 may be two, three, or four, and the present application does not impose any specific limitation on the number of convex structures 315. The convex structures 315 are formed by the bottom shell 311 protruding toward the top wall of the box body 10. The plurality of convex structures 315 are spaced apart from each other and are arranged to form an annular air guide channel 316.

[0069] The guide holes 314 may include a side shell guide hole 314a provided in the side shell 312 and connected to the annular guide channel 316, and a first bottom shell guide hole 314b provided in the bottom shell 311 and connected to the annular guide channel 316. Specifically, the convex structure 315 is spaced apart from the side shell 312 to form the annular guide channel 316, which effectively guides the flow of steam or hot air, enhancing the flow guidance effect and ensuring uniform temperature distribution within the cooking cavity 11. The design of the convex structure 315 and the annular guide channel 316 achieves more uniform heat transfer and steam distribution, ensuring that food is evenly heated throughout the cooking process, avoiding local overheating or underheating, and improving cooking uniformity.

[0070] The aforementioned multiple side shell air guide holes 314a can be arranged in a ring shape, and the multiple first bottom shell air guide holes 314b can also be arranged in a ring shape. By designing the side shell air guide holes 314a and the first bottom shell air guide holes 314b to be arranged in a ring shape, steam can be evenly distributed throughout the cooking cavity 11, ensuring that food is evenly heated and avoiding local overheating or underheating.

[0071] See also Figures 4 to 7 Two adjacent convex structures 315 are spaced apart to define a central flow guiding channel 317. The central flow guiding channel 317 communicates with the annular flow guiding channel 316. Steam from the steam generating assembly 20 is delivered to at least the central flow guiding channel 317. In some structural forms, the steam inlet 13 is disposed directly opposite the central flow guiding channel 317. When the steam inlet 13 is disposed directly opposite the central flow guiding channel 317, steam can be ensured to directly enter the annular flow guiding channel 316 through the central flow guiding channel 317. The steam then passes through the annular flow guiding channel 316 and the flow guiding holes 314 connected to the annular flow guiding channel 316, more evenly filling the cooking cavity 11. This allows the steam to more evenly cover the surface of the food, ensuring that the food is heated more evenly and improving heating uniformity.

[0072] Furthermore, the steam delivery pipe 22 passes through the top wall of the box body 10 and extends above or into the middle flow guide channel 317. This arrangement can reduce heat loss during the transmission process, allowing steam to reach the target area more quickly and efficiently, thereby improving energy utilization efficiency.

[0073] In some embodiments of the present application, the air guide holes 314 further include a second bottom shell air guide hole 314c disposed in the bottom shell 311 and communicating with the central air guide channel 317. The central air guide channel 317 is formed by spacing two adjacent convex structures 315 and communicating with the annular air guide channel 316. With this arrangement, steam flows evenly through the central air guide channel 317 into the annular air guide channel 316, and the steam is uniformly ejected into the cooking cavity 11 through the side shell air guide holes 314a, the first bottom shell air guide hole 314b, and the second bottom shell air guide hole 314c, respectively. This ensures that the steam or hot air is evenly distributed throughout the cooking cavity 11, improving cooking uniformity.

[0074] To improve the stability of the fixed connection between the air deflector 31 and the top wall of the housing 10, the following connection methods can be selected: first, the side shell 312 is fixedly connected to the top wall of the housing 10; second, the convex structure 315 is fixedly connected to the top wall of the housing 10; third, both the side shell 312 and the top wall of the housing 10 are fixedly connected and the convex structure 315 is fixedly connected to the top wall of the housing 10. In this way, a stable structure is formed between the air deflector 31 and the top wall of the housing 10, effectively preventing loosening or displacement during use, thereby ensuring the stability of the cooking device. Methods for fixing the air deflector 31 to the top wall of the housing 10 include, but are not limited to, screwing, clamping, welding, and the like.

[0075] See also Figure 5 and Figure 6 The heating element 32 can be disposed on the deflector 31, on the outer periphery of the deflector 31, or on both the deflector 31 and the outer periphery of the deflector 31. In this way, the heating element 32 can reheat the steam flowing out of the deflector 31, thereby increasing the temperature of the steam in the steam oven 100, and can also heat the deflector 31, thereby further heating the steam.

[0076] The heating element 32 can be an electric heating tube or an electric heating wire. The electric heating tube and the electric heating wire have the advantages of small size, simple structure, easy installation and maintenance, and relatively low cost. In addition, the electric heating tube and the electric heating wire can also accurately control the heating power and heating temperature as needed, so as to better meet the heating needs; of course, in other structural forms, the heating element 32 can also include an electric heating plate, which is not limited in the embodiment of the present application.

[0077] See also Figure 5 and Figure 6In the embodiment of the present application, the heating element 32 includes a first heating tube 321, which can be arranged in an annular shape and at least arranged in the annular guide channel 316. The heating element 32 includes a second heating tube 322, which can be arranged in an annular shape, and one or more circles of the second heating tube 322 are arranged on the outer peripheral side of the guide cover 31. In this way, the first heating tube 321 is arranged in the annular guide channel 316 to perform a more concentrated and uniform secondary heating of the steam. The second heating tube 322 is arranged on the outer peripheral side of the guide cover 31 to further heat the steam. By setting one or more circles, the heat can be evenly heated from different angles and positions, which helps to improve the heating efficiency and improve the uniformity of steam heating of food.

[0078] In some other embodiments, the above-mentioned heating element 32 can be arranged in an arc shape and evenly distributed on the lower surface of the air guide cover 31, that is, the heating element 32 can be arranged in a serpentine structure to be evenly distributed on the lower surface of the air guide cover 31, so that the heating element 32 can heat the entire air guide cover 31 more uniformly and cover a larger area, which also helps to improve the heating efficiency.

[0079] In summary, by providing the heating element 32 to heat the deflector 31 and the steam around it, and by providing the deflector 31 to adjust the flow direction of the steam, the steam oven 100 of this embodiment has at least two effects:

[0080] First, the steam around the deflector 31 and the deflector 31 is heated by the heating element 32. First, the temperature of the deflector 31 can be increased by the heating element 32, so that the steam contacts the deflector 31 after flowing in from the steam inlet, thereby avoiding that the temperature difference between the deflector 31 and the steam is too large, which causes the steam and the deflector 31 to exchange heat and reduce the heat of the steam. Moreover, when the steam inlet 13 is set on the cavity top wall 111 of the cooking cavity 11, the condensed water dripping from the steam inlet 13 to the deflector 31 can be converted from liquid to gas as the temperature of the deflector 31 increases, thereby increasing the steam content and also avoiding Condensed water is prevented from accumulating on the deflector 31 and causing bacterial growth. Secondly, the heating element 32 can increase the temperature of the steam surrounding it, reducing steam condensation and keeping the steam in a gaseous state, thereby conserving more latent heat for subsequent release when it comes into contact with food. Finally, the heating element 32 increases the steam temperature, so that when the steam comes into contact with food, it can melt the fat in the food to reduce the fat content of the food. It can also bring out some trace elements in the food, reducing the salt content in the food, making the food healthier after steaming and more beneficial to the consumer's dietary health.

[0081] Secondly, the flow direction of part of the steam is adjusted to the horizontal direction through the deflector 31, so that the steam flows in the horizontal direction, covers the entire cooking cavity 11 on the horizontal plane, and then flows toward the food. Therefore, the steam of this embodiment can squeeze out the air with a lower temperature originally located in the cooking cavity 11 through the air outlet 15, avoiding the steam from directly mixing with the air after flowing in from the steam inlet 13, thereby avoiding heat exchange between the steam and the air to reduce the heat of the steam, so as to ensure the heating efficiency of the steam on the food; after the air is squeezed out by the steam, the oxygen content in the cooking cavity 11 can be reduced, preventing the activity of polyphenol oxidase in the food from being activated, thereby preventing the food from oxidizing and discoloring, and reducing the loss of nutrients in the food, retaining the original flavor and rich nutrition of the food.

[0082] See also Figure 1 and Figure 2 The embodiment of the present application further includes a bracket 40 and a fan assembly 50. The bracket 40 includes a multi-layer supporting structure for supporting the steaming and baking tray. The multi-layer bracket 40 can be two layers, three layers, four layers, etc. Figure 3 As shown in the figure, the bracket 40 has four layers. This arrangement can effectively increase the placement space of the steaming and baking tray, so that the steaming and baking tray can process more food at the same time, thereby improving work efficiency.

[0083] The fan assembly 50 is disposed on the inner sidewall of the housing 10 and spaced apart from the bracket 40. Specifically, the fan assembly 50 is disposed on the sidewall 113 of the cooking cavity 11. The fan assembly 50 is used to blow air into the cooking cavity 11. The fan assembly 50 evenly distributes hot air to every corner of the cooking cavity 11, ensuring uniform heating of the ingredients, preventing localized overheating or underheating, and improving cooking efficiency. Furthermore, the air flow from the fan assembly 50 accelerates heat transfer and the cooking speed of the ingredients, shortening cooking time and improving work efficiency.

[0084] To further illustrate, when steaming a small amount of food, the steaming tray can be placed on the topmost bracket 40 within the cooking cavity 11. This creates a small space between the steaming tray and the top wall 111 of the cooking cavity 11. This allows steam ejected from the top to directly and quickly contact the food for heat exchange, thereby improving cooking efficiency and significantly shortening cooking time. For steaming a large amount of food, the fans on both sides are activated simultaneously when steam is generated. The fans' operation fully stirs the steam within the cavity, ensuring that each layer of food can experience sufficient and even heat exchange.

[0085] Two sets of fan assemblies 50 are positioned on opposite sides of the bracket 40. By placing the two sets of fan assemblies 50 on opposite sides, bidirectional air flow is achieved within the cooking cavity 11, promoting more uniform ventilation, ensuring adequate circulation of hot air and moisture, and evenly heating the food. Furthermore, the placement of the two sets of fan assemblies 50 on opposite sides increases the air circulation path, speeding up heat dissipation and allowing the temperature within the cooking cavity 11 to be adjusted and balanced more quickly, effectively shortening preheating time.

[0086] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A steam oven, characterized in that: include: A box body defines a cooking cavity therein; a steam generating assembly disposed outside the box and communicating with the cooking cavity through the top wall of the box, the steam generating assembly being used to deliver generated steam into the cooking cavity; and The secondary heating component is arranged in the cooking cavity and is arranged opposite to the top wall of the box body, and is used for secondary heating the steam delivered to the cooking cavity by the steam generating component.

2. The steam oven according to claim 1, wherein: The secondary heating component comprises: a flow guide cover, disposed in the cooking cavity and opposite to the top wall of the box body, for receiving the steam delivered to the cooking cavity by the steam generating assembly; and The heating element is arranged on the deflector cover or on the outer peripheral side of the deflector cover to perform secondary heating on the steam.

3. The steam oven according to claim 2, wherein: The deflector cover is fixedly connected to the top wall of the box body and defines a deflector cavity with the top wall of the box body. The deflector cover also has a deflector hole connecting the deflector cavity and the cooking cavity.

4. The steam oven according to claim 3, wherein: The deflector comprises: a bottom shell, at least part of which is spaced apart from the top wall of the box body; and A side shell is connected to the peripheral side of the bottom shell in a surrounding manner, and the side shell, the bottom shell and the top wall of the box body jointly define the guide cavity; Wherein, the guide holes are arranged on the bottom shell and / or the side shell.

5. The steam oven according to claim 4, wherein: The deflector cover also includes: A plurality of convex structures, wherein the convex structures are formed by the bottom shell protruding toward the top wall of the box body, and the plurality of convex structures are spaced apart from the side shell to form an annular guide channel; The guide holes include a side shell guide hole provided on the side shell and communicating with the annular guide channel, and a first bottom shell guide hole provided on the bottom shell and communicating with the annular guide channel.

6. The steam oven according to claim 5, wherein: The plurality of side shell air guide holes are arranged in a ring shape, and / or the plurality of first bottom shell air guide holes are arranged in a ring shape.

7. The steam oven according to claim 5, wherein: Two adjacent convex structures are spaced apart to define a central flow guiding channel, the central flow guiding channel is communicated with the annular flow guiding channel, and the steam of the steam generating assembly is at least delivered to the central flow guiding channel; Wherein, the guide hole further includes a second bottom shell guide hole provided on the bottom shell and connected with the middle guide channel.

8. The steam oven according to claim 7, wherein: The top wall of the box body has a steam inlet connected to the steam generating assembly, and the steam inlet is arranged opposite to the middle guide channel; or The steam generating assembly includes a steam generator and a steam delivery pipe connected to the steam generator. The steam delivery pipe passes through the top wall of the box body and extends above the central flow guiding channel or into the central flow guiding channel.

9. The steam oven according to claim 5, wherein: The air deflector is fixedly connected to the top wall of the box body through the side shell and / or the convex structure.

10. The steam oven according to claim 5, wherein: The heating element comprises: The first heating tube is arranged in an annular shape and is at least arranged in the annular guide channel.

11. The steam oven according to any one of claims 2 to 10, characterized in that: The heating element comprises: The second heating tube is arranged in a ring shape, and one or more circles of the second heating tube are arranged on the outer peripheral side of the air guide cover.

12. The steam oven according to any one of claims 1 to 10, characterized in that: Also includes: The bracket includes a multi-layer supporting structure for supporting the steaming and baking tray; as well as A fan assembly is arranged on the inner side wall of the box body and is spaced apart from the bracket. The fan assembly is used for blowing air into the cooking cavity.

13. The steam oven according to claim 12, wherein: The two groups of fan components are respectively arranged on opposite sides of the bracket.

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