Steaming oven

Abstract

The embodiment of the utility model belongs to the household appliance technology, and provides a steaming oven which comprises a shell, and the shell is provided with a containing cavity; the inner container is located in the containing cavity, and a cooking cavity is formed in the inner container; the air duct structure is located in the containing cavity, the air duct structure is provided with an air duct cavity, the air duct cavity is communicated with the exterior of the shell, the air duct structure is provided with a first opening and a second opening which are communicated with the air duct cavity, the first opening is communicated with the exterior of the air duct structure, and the second opening is communicated with the cooking cavity; the fan is positioned in the air duct cavity; the first pressurizing assembly is located in the containing cavity, and the first pressurizing assembly is configured to change the opening size of the first opening; and the second pressurizing assembly is located in the containing cavity, and the second pressurizing assembly is configured to change the opening size of the second opening. According to the steaming oven, the steam exhausting speed is high.

Description

Technical Field

[0001] Embodiments of the present application relate to home appliance technologies. In particular, it relates to a steam oven. Background Art

[0002] With the development of people's economic level, more and more household appliances are applied to ordinary families. As a common kitchen electric appliance, the steam oven is also increasingly favored by people.

[0003] In the related art, the steam oven includes a housing, an inner container, an air duct structure and a control valve. The inner container and the air duct structure are located inside the housing. The air duct structure is communicated with the inner container and the outside of the housing, and is used to discharge the steam in the inner container. The control valve is used to control the exhaust rate.

[0004] However, when cooking ends, the speed of discharging steam by the air duct structure is slow. Summary of the Utility Model

[0005] Embodiments of the present application provide a steam oven with a relatively fast steam discharge speed.

[0006] In a first aspect, embodiments of the present application provide a steam oven, including:

[0007] A housing, which is configured with a receiving cavity;

[0008] An inner container, which is located in the receiving cavity and is configured with a cooking cavity;

[0009] An air duct structure, which is located in the receiving cavity and is configured with an air duct cavity. The air duct cavity is communicated with the outside of the housing. The air duct structure is configured with a first opening and a second opening that are communicated with the air duct cavity. The first opening is communicated with the outside of the air duct structure, and the second opening is communicated with the cooking cavity;

[0010] A fan, which is located in the air duct cavity;

[0011] A first pressurizing component, which is located in the receiving cavity and is configured to change the opening size of the first opening;

[0012] A second pressurizing component, which is located in the receiving cavity and is configured to change the opening size of the second opening.

[0013] Based on the principle that air flows towards the area with a greater degree of negative pressure, and the greater the negative pressure difference, the greater the air flow velocity, and the larger the area of the circulation opening, the greater the amount of circulation per unit time. The steam oven provided in this application is configured with a blower in the air duct cavity of the air duct structure. When the blower operates, it generates negative pressure, which is conducive to accelerating the discharge of steam from the inner container into the air duct cavity. By providing a first opening and a second opening on the air duct structure, the first opening is in communication with the outside of the air duct structure, and the second opening is in communication with the cooking cavity of the inner container. The first pressure boosting component can change the opening size of the first opening, and the second pressure boosting component can change the opening size of the second opening. After cooking is completed, the second pressure boosting component increases the opening size of the second opening, and / or the first pressure boosting component decreases the opening size of the first opening, thereby changing the degree of negative pressure of the blower position relative to the cooking cavity of the inner container, and / or the circulation area of steam flow between the air duct cavity and the cooking cavity. The speed of external air entering the air duct cavity decreases, and the speed of steam in the inner container entering the air duct cavity increases, which is conducive to increasing the speed of steam discharge.

[0014] In some embodiments, the first pressure boosting component is located in the accommodation cavity and is configured to open or close the first opening.

[0015] In this way, the change in the degree of negative pressure of the blower position relative to the cooking cavity of the inner container is relatively large, the steam flow velocity is relatively fast, which is conducive to rapid steam discharge.

[0016] In some embodiments, the air duct structure is located at the top of the inner container;

[0017] The first opening is provided at the top of the air duct structure, the first pressure boosting component is provided at the top of the air duct structure, and the first pressure boosting component moves towards the first opening to open or close the first opening.

[0018] In this way, the space at the top of the inner container can be utilized more fully.

[0019] In some embodiments, the first pressure boosting component includes:

[0020] A first driving member, which is connected to the air duct structure;

[0021] A first sealing member, which is connected to the first driving member. The size of the first sealing member is not less than the size of the first opening. The first driving member drives the first sealing member to move towards the first opening to open or close the first opening.

[0022] In this way, the first pressure boosting component has fewer components, a relatively simple structure, and occupies less space.

[0023] In some embodiments, the air duct structure is located at the top of the inner container;

[0024] The first opening is arranged at the top of the air duct structure, and the first opening is spaced apart from the second opening;

[0025] The second boosting assembly is arranged on the top of the air duct structure, and the second boosting assembly moves toward the second opening to change the opening size of the second opening.

[0026] In this way, the space at the top of the inner tank can be more fully utilized.

[0027] In some embodiments, it also includes:

[0028] A connecting piece, the connecting piece is arranged on the top of the air duct structure, the connecting piece is configured with a connecting cavity, the connecting cavity is connected with the second opening, and the connecting piece is configured with a third opening connected with the connecting cavity;

[0029] The first pipeline is connected to the connecting piece and the inner pot, and the third opening is connected to the cooking cavity through the inner cavity of the first pipeline.

[0030] In this way, it is convenient to change the length and arrangement position of the first pipe, and the setting of the third opening and the connection position of the inner tank is more flexible, which is more conducive to the spatial layout of the air duct structure, the first boost component and the second boost component.

[0031] In some embodiments, the second boost assembly includes:

[0032] a second driving member connected to the air duct structure;

[0033] The second sealing member has a size smaller than that of the second opening, and the second sealing member is connected to the second driving member, and the second driving member drives the second sealing member to move toward the second opening to change the opening size of the second opening.

[0034] In this way, the second boosting assembly has fewer parts, a simpler structure, and occupies less space.

[0035] In some embodiments, the air duct structure includes:

[0036] A support plate, the support plate is arranged on the top of the inner tank;

[0037] The cover plate is arranged on the side of the support plate away from the inner tank, and an air duct cavity is formed between the cover plate and the support plate; the cover plate includes:

[0038] The volute pressurizing part, the fan is located between the volute pressurizing part and the inner tank, the fan is connected to the volute pressurizing part, the first opening and the second opening are arranged on the volute pressurizing part and are located in the air inlet area of the fan;

[0039] The first connection part is connected with the volute pressurizing part.

[0040] In this way, by providing the volute supercharging part, it is beneficial to reduce the resistance of the air duct cavity and increase the suction of the fan.

[0041] In some embodiments, the cover plate further includes a flow disturbing part, and the flow disturbing part is arranged on the periphery of the first opening and / or the second opening.

[0042] In this way, by providing the flow disturbing part, the turbulent flow generated during the rotation of the fan can be reduced, the suction of the fan can be increased, and the exhaust rate can be improved.

[0043] In a second aspect, an embodiment of the present application provides a steam oven, including:

[0044] A housing, the housing is configured with a receiving cavity;

[0045] An inner liner, the inner liner is located in the receiving cavity, and the inner liner is configured with a cooking cavity;

[0046] An air duct structure, the air duct structure is located in the receiving cavity, the air duct structure is configured with an air duct cavity, the air duct cavity is communicated with the outside of the housing, the air duct structure is configured with a first opening and a second opening communicated with the air duct cavity, the first opening is communicated with the outside of the air duct structure, and the second opening is communicated with the cooking cavity;

[0047] A fan, the fan is located in the air duct cavity;

[0048] A first supercharging assembly, the first supercharging assembly is located in the receiving cavity;

[0049] A second supercharging assembly, the second supercharging assembly is located in the receiving cavity;

[0050] When cooking ends, the second supercharging assembly is configured to increase the opening size of the second opening, and the first supercharging assembly is configured to decrease the opening size of the first opening.

[0051] Based on the principle that air flows to the area with a greater degree of negative pressure and the greater the negative pressure difference, the greater the air flow velocity, and the larger the area of the flow port, the greater the amount of flow per unit time. The steam oven provided by the present application has a fan arranged in the air duct cavity of the air duct structure. When the fan operates, negative pressure is generated, which is beneficial to accelerating the discharge of steam from the inner liner into the air duct cavity. By providing a first opening and a second opening on the air duct structure, the first opening is communicated with the outside of the air duct structure, and the second opening is communicated with the cooking cavity of the inner liner. The first supercharging assembly can change the opening size of the first opening, and the second supercharging assembly can change the opening size of the second opening. After cooking ends, the second supercharging assembly increases the opening size of the second opening, and the first supercharging assembly decreases the opening size of the first opening, thereby changing the degree of negative pressure of the fan position relative to the cooking cavity of the inner liner and the flow area of steam circulation between the air duct cavity and the cooking cavity. The speed of external air entering the air duct cavity decreases, and the speed of steam in the inner liner entering the air duct cavity increases, which is beneficial to improving the steam discharge speed. Description of the Drawings

[0052] To more clearly illustrate the embodiments of the present application or the implementation manners in the related art, the following will briefly introduce the drawings required for use in the description of the embodiments or the related art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0053] Figure 1 Structural schematic diagram of the steam oven provided by the embodiment of the present application;

[0054] Figure 2 Structural schematic diagram of the steam oven provided by the embodiment of the present application with part of the outer shell removed;

[0055] Figure 3 For Figure 2 Top view of

[0056] Figure 4 Structural schematic diagram of the air duct structure, fan, first supercharging component, and second supercharging component in the steam oven provided by the embodiment of the present application;

[0057] Figure 5 For Figure 4 Structural schematic diagram from another angle of

[0058] Figure 6 Structural schematic diagram of the cover plate in the steam oven provided by the embodiment of the present application;

[0059] Figure 7 Structural schematic diagram of the fan in the steam oven provided by the embodiment of the present application;

[0060] Figure 8 Structural schematic diagram of the air duct structure, first supercharging component, and second supercharging component in the steam oven provided by the embodiment of the present application;

[0061] Figure 9 For Figure 8 Cross-sectional view along the A-A direction in

[0062] Figure 10 For Figure 8 Cross-sectional view along the B-B direction in

[0063] Figure 11 For Figure 6 Structural schematic diagram from another angle of

[0064] Figure 12 For Figure 6 Top view of

[0065] Figure 13 For Figure 12 Cross-sectional view along the C-C direction in

[0066] Figure 14 Schematic structural diagram of the first pressure boosting assembly in the steam oven provided by the embodiment of the present application;

[0067] Figure 15 is Figure 14 Schematic structural diagram from another angle of

[0068] Figure 16 Schematic structural diagram of the second pressure boosting assembly in the steam oven provided by the embodiment of the present application;

[0069] Figure 17 is Figure 16 Schematic structural diagram from another angle of

[0070] Reference numerals:

[0071] 100 - Outer shell;

[0072] 200 - Inner container;

[0073] 300 - Door body;

[0074] 400 - Steam system; 410 - Water box; 420 - Steam generator; 430 - Feed water pump; 440 - Water - vapor separator; 450 - Return water pump;

[0075] 500 - Air duct structure; 510 - Air duct cavity; 520 - First opening; 530 - Second opening; 540 - Cover plate; 541 - Volute pressure boosting part; 542 - First connecting part; 543 - Turbulence part; 544 - Concave part; 550 - Support plate; 560 - Connecting piece; 561 - Connecting cavity; 562 - Third opening; 570 - First pipeline;

[0076] 600 - Fan; 610 - Second connecting part; 620 - Fan blade;

[0077] 700 - First pressure boosting assembly; 710 - First driving part; 720 - First sealing part;

[0078] 800 - Second pressure boosting assembly; 810 - Second driving part; 820 - Second sealing part. Detailed implementation manners

[0079] As described in the background art, the steam in the inner container can only be freely discharged, without a suction effect, and only relies on the free diffusion of air, resulting in a poor steam discharge effect.

[0080] To solve the above technical problems, the technical solution of the present application provides a steam oven, based on the principle that air flows to the area with a greater degree of negative pressure, and the greater the negative pressure difference, the greater the air flow velocity. Moreover, the larger the area of the circulation port, the greater the amount of circulation per unit time. The steam oven provided by the present application is provided with a blower in the air duct cavity of the air duct structure. When the blower operates, negative pressure is generated, which is conducive to accelerating the discharge of steam from the inner container into the air duct cavity. By providing a first opening and a second opening on the air duct structure, the first opening communicates with the outside of the air duct structure, and the second opening communicates with the cooking cavity of the inner container. The first pressurization component can change the opening size of the first opening, and the second pressurization component can change the opening size of the second opening. After cooking, the second pressurization component increases the opening size of the second opening, and the first pressurization component decreases the opening size of the first opening, thereby changing the degree of negative pressure of the blower position relative to the cooking cavity of the inner container, as well as the circulation area of steam flow between the air duct cavity and the cooking cavity. The speed of external air entering the air duct cavity decreases, and the speed of steam in the inner container entering the air duct cavity increases, which is conducive to improving the steam discharge speed.

[0081] To make the purpose, implementation mode and advantages of the present application clearer, the following will clearly and completely describe the exemplary implementation mode of the present application with reference to the drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only a part of the embodiments of the present application, rather than all the embodiments.

[0082] It should be noted that the brief description of the terms in the present application is only for the convenience of understanding the following described implementation modes, rather than intending to limit the implementation modes of the present application. Unless otherwise specified, these terms should be understood in their ordinary and common meanings.

[0083] In addition, the terms "including" and "having" and any variations thereof are intended to cover but not exclude inclusion. For example, a product or device including a series of components does not necessarily have to be limited to those components clearly listed, but may include other components not clearly listed or inherent to these products or devices.

[0084] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application.

[0085] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, unless otherwise specified, the meaning of "a plurality" is two or more.

[0086] In the description of this application, it should be noted that unless otherwise clearly specified and limited, the terms "mounted", "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0087] Next, the technical solutions in the embodiments of this application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0088] The embodiments of this application provide a steam oven. The steam oven can be an embedded steam oven. Or, it can be a freestanding steam oven.

[0089] Figure 1 is a schematic structural diagram of the steam oven provided by the embodiments of this application, Figure 2 is a schematic structural diagram of the steam oven provided by the embodiments of this application with part of the outer shell removed, Figure 3 is Figure 2 top view of.

[0090] See Figures 1 to 3 As shown, in some embodiments, the steam oven includes an outer shell 100. The outer shell 100 can play a role in protection and aesthetics.

[0091] Among them, the outer shell 100 has a receiving cavity. The receiving cavity is used to provide installation space for other components.

[0092] In some embodiments, the steam oven includes an inner container 200. The inner container 200 is used to place food.

[0093] Among them, the inner container 200 is located in the receiving cavity. The inner container 200 is configured with a cooking cavity.

[0094] In some embodiments of this application, the steam oven includes a door body 300.

[0095] Among them, the door body 300 is rotatably connected to the outer shell 100. The door body 300 rotates relative to the outer shell 100 to open or close the accommodation cavity.

[0096] In some embodiments, the steam oven includes a steam system 400, and the steam system 400 can be used to deliver steam into the inner cavity 200.

[0097] Among them, the steam system 400 is located in the accommodation cavity.

[0098] In some embodiments, the steam oven includes an air duct structure 500. The air duct structure 500 can be used to discharge the steam in the cooking cavity to the outside of the steam oven.

[0099] Among them, the air duct structure 500 is located in the accommodation cavity.

[0100] Figure 4 Schematic structural diagrams of the air duct structure, the fan, the first pressurizing component, and the second pressurizing component in the steam oven provided by the embodiments of the present application. Figure 5 For Figure 4 Another perspective structural diagram. Figure 6 Schematic structural diagram of the cover plate in the steam oven provided by the embodiments of the present application.

[0101] See Figures 4 to 6 As shown, in some embodiments, the air duct structure 500 is configured with an air duct cavity 510. The air duct cavity 510 communicates with the outside of the outer shell 100.

[0102] In some embodiments, the air duct structure 500 is configured with a first opening 520 communicating with the air duct cavity 510. The first opening 520 communicates with the outside of the air duct structure 500.

[0103] Exemplarily, the first opening 520 can be circular, oval, rectangular, or irregular in shape, etc., and is not specifically limited in this embodiment.

[0104] In some embodiments, the air duct structure 500 is configured with a second opening 530 communicating with the air duct cavity 510. The second opening 530 communicates with the cooking cavity.

[0105] Exemplarily, the second opening 530 can be circular, oval, rectangular, or irregular in shape, etc., and is not specifically limited in this embodiment.

[0106] Figure 7 Schematic structural diagram of the fan in the steam oven provided by the embodiments of the present application.

[0107] See Figure 5 And Figure 7 As shown, in some embodiments, the steam oven includes a fan 600.

[0108] Among them, the blower 600 is located in the air duct cavity 510.

[0109] When the blower 600 operates, a negative pressure is generated. The steam in the cooking cavity enters the air duct cavity 510 through the second opening 530, and the air outside the air duct structure 500 enters the air duct cavity 510 through the first opening 520. Under the action of the blower 600, the steam and / or air flow along the air duct cavity 510 to the outside of the steam oven.

[0110] It should be noted that the first opening 520 and the second opening 530 are located in the air inlet area of the blower 600.

[0111] In some embodiments, the blower 600 can be a centrifugal blower.

[0112] In some embodiments, the blower 600 includes a second connecting portion 610 and a plurality of fan blades 620. The plurality of fan blades 620 are arranged at intervals in the circumferential direction around the second connecting portion 610. The area surrounded by the plurality of fan blades 620 is the air inlet area of the blower 600.

[0113] The driving device is connected to the second connecting portion 610, and the driving device drives the fan blades 620 to rotate through the second connecting portion 610.

[0114] Figure 8 It is a schematic structural diagram of the air duct structure, the first pressurizing component and the second pressurizing component in the steam oven provided by the embodiment of the present application. Figure 9 is Figure 8 a cross-sectional view taken along the A-A direction in

[0115] See Figure 6 、 Figure 8 and Figure 9 As shown, in some embodiments, the steam oven includes a first pressurizing component 700.

[0116] The first pressurizing component 700 is located in the accommodation cavity, and the first pressurizing component 700 is configured to change the opening size of the first opening 520.

[0117] It should be noted that the opening size of the first opening 520 refers to the area size available for air circulation of the first opening 520.

[0118] Based on the principle that air flows to the area with a greater degree of negative pressure, and the greater the negative pressure difference, the greater the air flow velocity.

[0119] It can be understood that when it is necessary to accelerate the steam exhaust speed, the first pressurizing component 700 reduces the opening size of the first opening 520, the pressure difference between the position of the blower 600 in the air duct cavity 510 and the pressure in the cooking cavity increases, and the speed of the steam in the cooking cavity entering the air duct cavity 510 is accelerated.

[0120] When it is necessary to reduce the exhaust steam speed, the first pressurizing component 700 increases the opening size of the first opening 520, the pressure difference between the position of the fan 600 in the air duct cavity 510 and the pressure in the cooking cavity decreases, and the speed at which the steam in the cooking cavity enters the air duct cavity 510 through the second opening 530 slows down.

[0121] Figure 10 For Figure 8 the sectional view taken along the B-B direction in

[0122] See Figure 6 、 Figure 8 and Figure 10 As shown in

[0123] In some embodiments, the steam oven includes a second pressurizing component 800. The second pressurizing component 800 is located in the accommodating cavity, and the second pressurizing component 800 is configured to change the opening size of the second opening 530.

[0124] It should be noted that the opening size of the second opening 530 refers to the area size available for air circulation of the second opening 530.

[0125] Based on the principle that the larger the area of the circulation port, the larger the amount of air flowing through per unit time.

[0126] It can be understood that when it is necessary to accelerate the exhaust steam speed, the second pressurizing component 800 increases the opening size of the second opening 530, and within a unit time, the amount of steam in the cooking cavity entering the air duct cavity 510 through the second opening 530 increases.

[0127] When it is necessary to reduce the exhaust steam speed, the second pressurizing component 800 decreases the opening size of the second opening 530, and within a unit time, the amount of steam in the cooking cavity entering the air duct cavity 510 through the second opening 530 decreases.

[0128] In some embodiments, after cooking is completed, the second pressurizing component 800 increases the opening size of the second opening 530. At the same time, the first pressurizing component 700 decreases the opening size of the first opening 520. In this way, the degree of negative pressure of the position of the fan 600 relative to the cooking cavity of the inner container can be changed, and at the same time, the circulation area of steam flow between the air duct cavity and the cooking cavity is changed. Therefore, the speed at which external air enters the air duct cavity 510 decreases, and the speed at which the steam in the inner container enters the air duct cavity 510 increases, which is beneficial to improving the steam exhaust speed.

[0129] In some embodiments, the first pressurizing component 700 is located in the accommodating cavity, and the first pressurizing component 700 is configured to open or close the first opening 520.

[0130] When cooking ends, or at a certain time (such as N seconds) before cooking ends, the first pressurizing component 700 closes the first pressurizing opening 520 to accelerate the discharge of steam. When cooking, the first pressurizing component 700 opens the first opening 520.

[0131] Specifically, in the rapid exhaust stage, the first pressurizing component 700 closes the first opening 520, increasing the negative pressure at the position of the blower 600, causing the steam in the inner container to flow out and enter the external atmosphere relatively quickly through the air duct cavity 510.

[0132] In the non-rapid exhaust stage, the first pressurizing component 700 opens the first opening 520, and the gas enters the blower 600 through the first opening 520. The negative pressure at the blower 600 is relatively small, and the steam in the inner container slowly enters the air duct cavity 510 and then enters the external atmosphere.

[0133] It can be understood that the first pressurizing component 700 has fewer motion states and higher reliability.

[0134] In some embodiments, the air duct structure 500 is located at the top of the inner container.

[0135] In some embodiments, the air duct structure 500 includes a support plate 550.

[0136] Among them, the support plate 550 is arranged at the top of the inner container.

[0137] Figure 11 For Figure 6 is a schematic structural diagram from another angle, Figure 12 For Figure 6 is a top view, Figure 13 For Figure 12 is a cross-sectional view taken along the C-C direction in

[0138] See Figures 11 to 13 As shown, in some embodiments, the air duct structure 500 includes a cover plate 540.

[0139] The cover plate 540 is covered on the side of the support plate 550 facing away from the inner container, and a air duct cavity 510 is formed between the cover plate 540 and the support plate 550.

[0140] In some embodiments, the cover plate 540 is covered on the top of the inner container, and a air duct cavity 510 is formed between the cover plate 540 and the inner container.

[0141] In some embodiments, the cover plate 540 includes a volute pressurizing portion 541.

[0142] Among them, the blower 600 is located between the volute pressurizing portion 541 and the inner container, and the blower 600 is connected to the volute pressurizing portion 541.

[0143] Among them, the first opening 520 and the second opening 530 are provided on the volute supercharging part 541 and are located in the air inlet area of the blower 600.

[0144] The volute supercharging part 541 can be designed in an involute shape. For example, an Archimedean spiral.

[0145] It can be understood that the space gradually increases along the rotation direction of the blower 600, which can effectively reduce the resistance of the air in the flow channel. At the same time, the involute design can increase the suction of the blower 600.

[0146] In some embodiments, the cover plate 540 includes a first connecting part 542.

[0147] The first connecting part 542 is connected to the volute supercharging part 541.

[0148] It should be noted that along the air flow direction, the air flow space formed by the first connecting part 542 is larger than the air flow space formed by the volute supercharging part 541. And along the air flow direction, the air flow space formed by the first connecting part 542 gradually increases.

[0149] In some embodiments, the cover plate 540 further includes a flow disturbing part 543, and the flow disturbing part 543 is provided at the first opening 520.

[0150] In some embodiments, the flow disturbing part 543 is provided on the periphery of the second opening 530.

[0151] In some embodiments, the flow disturbing part 543 is provided on the peripheries of the first opening 520 and the second opening 530.

[0152] Specifically, the flow disturbing part 543 can be arc-shaped. The flow disturbing part 543 can be a protrusion.

[0153] It can be understood that by providing the flow disturbing part 543, the turbulent flow generated when the blower 600 rotates can be reduced, the suction of the blower 600 can be increased, and the exhaust rate can be improved.

[0154] In order to make full use of the space at the top of the inner tank, in some embodiments, the first opening 520 is provided at the top of the air duct structure 500, and the first supercharging assembly 700 is provided at the top of the air duct structure 500.

[0155] In some embodiments, a recessed part 544 is provided on the top of the cover plate 540, and the height of the inner bottom surface of the recessed part 544 is lower than the top surface of the cover plate 540. At least part of the first supercharging assembly 700 is located in the recessed part 544. In this way, it is beneficial to reduce the overall height of the steam oven.

[0156] Among them, the first opening 520 and the second opening 530 are located on the inner bottom wall of the recessed part 544.

[0157] Figure 14 Schematic diagram of the structure of the first pressurizing assembly in the steam oven provided by the embodiment of the present application. Figure 15 For Figure 14 Schematic diagram of the structure from another angle.

[0158] Refer to Figure 14 and Figure 15 As shown in

[0159] In some embodiments, the first pressurizing assembly 700 moves towards the first opening 520 to open or close the first opening 520.

[0160] Among them, the first driving member 710 can be a linear motion driving member, such as an electric push rod or an electric cylinder, etc.

[0161] Among them, the first driving member 710 is connected to the air duct structure 500.

[0162] Specifically, the first driving member 710 can be connected to the cover plate 540 through a mounting bracket.

[0163] In some embodiments, the first pressurizing assembly 700 includes a first sealing member 720.

[0164] In some embodiments, the size of the first sealing member 720 matches the size of the first opening 520. That is to say, when the first sealing member 720 is inserted into the first opening 520, the outer wall of the first sealing member 720 abuts against the inner wall of the first opening 520.

[0165] Specifically, the first sealing member 720 is connected to the first driving member 710, and the first driving member 710 drives the first sealing member 720 to move towards the first opening 520 along the height direction of the steam oven to open or close the first opening 520.

[0166] In some embodiments, the size of the first sealing member 720 is larger than the size of the first opening 520. That is to say, the first sealing member 720 can cover the first opening 520.

[0167] Specifically, the first sealing member 720 is connected to the first driving member 710, and the first driving member 710 drives the first sealing member 720 to move towards the first opening 520 along the height direction of the steam oven to open or close the first opening 520.

[0168] In some embodiments, the size of the first sealing member 720 is smaller than the size of the first opening 520. That is to say, when the first sealing member 720 is inserted into the first opening 520, there is a gap between the outer wall of the first sealing member 720 and the inner wall of the first opening 520.

[0169] Specifically, the first seal 720 is connected to the first driving member 710. The first driving member 710 drives the first seal 720 to move towards the first opening 520 in the height direction of the steam oven, so as to change the opening size of the first opening 520.

[0170] Specifically, the first seal 720 can be a sealing plate, or the first seal 720 can be a gasket.

[0171] In some embodiments, the first opening 520 is provided at the top of the air duct structure 500.

[0172] In some embodiments, the first opening 520 and the second opening 530 are arranged at intervals.

[0173] The second pressurizing assembly 800 is provided at the top of the air duct structure 500. The second pressurizing assembly 800 moves towards the second opening 530 to open or close the second opening 530.

[0174] Figure 16 FIG. is a schematic structural diagram of the second pressurizing assembly in the steam oven provided by the embodiment of the present application. Figure 17 is Figure 16 a schematic structural diagram from another angle.

[0175] See Figure 16 and Figure 17 As shown, in some embodiments, the steam oven further includes a connecting member 560.

[0176] Among them, the connecting member 560 is provided at the top of the air duct structure 500. The connecting member 560 is configured with a connecting cavity 561. The connecting cavity 561 is communicated with the second opening 530. The connecting member 560 is configured with a third opening 562 communicated with the connecting cavity 561.

[0177] In some embodiments, the steam oven further includes a first pipe 570.

[0178] The first pipe 570 is connected to the connecting member 560 and is connected to the inner container 200. The third opening 562 is communicated with the cooking cavity through the inner cavity of the first pipe 570.

[0179] It can be understood that the air duct structure 500 is communicated with the inner container 200 through the first pipe 570 and the connecting member 560. In this way, it is more convenient to change the length and layout position of the first pipe 570, and the setting of the connecting position of the third opening 562 and the inner container 200 is more flexible, which is more beneficial to the spatial layout of the air duct structure 500, the first pressurizing assembly 700 and the second pressurizing assembly 800.

[0180] In some embodiments, the second boosting assembly 800 may be a control valve, which may be disposed on the first pipe 570, and the area of the first pipe 570 available for steam flow is controlled by the opening size of the control valve.

[0181] See Figure 16 and Figure 17 As shown, in some embodiments, the second boosting assembly 800 includes a second driving member 810.

[0182] Wherein, the second driving member 810 is connected to the air duct structure 500.

[0183] Wherein, the second driving member 810 may be a linear motion driving member, such as an electric push rod or an electric cylinder, etc.

[0184] In some embodiments, the second driving member 810 may be connected to the cover plate 540 through a mounting bracket.

[0185] In some embodiments, the second driving member 810 may be connected to the connecting member 560, and the driving shaft of the second driving member 810 may be located in the communication cavity 561.

[0186] In some embodiments, the second boosting assembly 800 includes a second sealing member 820.

[0187] Specifically, the second sealing member 820 may be a sealing plate, or the second sealing member 820 may be a gasket.

[0188] Wherein, the second sealing member 820 is connected to the second driving member 810.

[0189] In some embodiments, the size of the second sealing member 820 is smaller than the size of the second opening 530. That is to say, when the second sealing member 820 is inserted into the second opening 530, there is a gap between the outer wall of the second sealing member 820 and the inner wall of the second opening 530. Specifically, the second driving member 810 drives the second sealing member 820 to move towards the second opening 530 along the height direction of the steam oven to change the opening size of the second opening 530.

[0190] In some embodiments, the size of the second sealing member 820 matches the size of the second opening 530. That is to say, when the second sealing member 820 is inserted into the second opening 530, the outer wall of the second sealing member 820 abuts against the inner wall of the second opening 530. Specifically, the second driving member 810 drives the second sealing member 820 to move towards the second opening 530 along the height direction of the steam oven to open or close the second opening 530.

[0191] In some embodiments, the size of the second seal 820 is larger than the size of the second opening 530. That is to say, the second seal 820 can cover the surface of the second opening 530 to seal the second opening 530. Specifically, the second driving member 810 drives the second seal 820 to move towards the second opening 530 in the height direction of the steam oven to open or close the second opening 530.

[0192] The steam system 400 will be introduced below.

[0193] Refer to Figure 2 and Figure 3 As shown, in some embodiments, the steam system 400 includes a water tank 410. The water tank 410 is used to hold a liquid, such as water or descaling agent, etc.

[0194] In some embodiments, the water tank 410 can be located on one side of the inner container 200, for example, on the top of the inner container 200.

[0195] In some embodiments, a top plate is provided at the top of the inner container 200. The top plate is connected to the outer shell 100, and the water tank 410 is connected to the top plate.

[0196] In some embodiments, the steam system 400 includes a steam generator 420. The steam generator 420 is used to generate steam and deliver the steam to the inner container 200.

[0197] In some embodiments, the steam generator 420 can be located on one side of the inner container 200, for example, on the back of the inner container 200.

[0198] In some embodiments, a back plate is provided at the back of the inner container 200. The back plate is connected to the outer shell 100, and the steam generator 420 is connected to the back plate.

[0199] In some embodiments, the steam system 400 includes a water inlet pump 430. The water inlet pump 430 is communicated with the water tank 410 and the steam generator 420, and the water inlet pump 430 is used to deliver the water in the water tank 410 to the steam generator 420.

[0200] In some embodiments, the steam system 400 includes a steam-water separator 440. The steam-water separator 440 is communicated with the steam generator 420 and the inner container 200.

[0201] The steam generated by the steam generator 420 enters the steam-water separator 440, and the water and steam can be separated, and only the dry steam enters the inner container 200.

[0202] In some embodiments, the steam system 400 includes a return water pump 450 which is in communication with the water box 410 and the steam generator 420. The return water pump 450 is configured to recover the remaining water in the steam generator 420 back to the water box 410. In this way, it can effectively prevent water from staying in the pipeline for a long time and causing bacterial growth.

[0203] The overall working process of the steam oven will be introduced below.

[0204] During steam cooking, the water inlet pump 430 pumps the water in the water box 410 into the steam generator. The steam generator 420 heats to generate steam. After the water is separated by the water-vapor separator 440, the dry hot steam is delivered to the inner cavity 200 to heat the food.

[0205] When the temperature in the inner cavity 200 reaches the first preset value, the door lock structure is activated to lock the door body 300.

[0206] The humidity detection device continuously detects the humidity value in the inner cavity 200. The controller controls the duty cycles of the steam generator 420 and the water inlet pump 430 according to the humidity value. The steam in the inner cavity 200 enters the air duct cavity 510 through the first pipe 570, the connecting member 560 and the second opening 530, and then is discharged to the outside of the steam oven through the air duct cavity 510.

[0207] At a preset time before the end of cooking, the controller controls the first pressurizing assembly 700 to close the first opening 520, increasing the negative pressure at the blower 600. The controller controls the second pressurizing assembly 800 to increase the opening size of the second opening 530, increasing the flow area. The steam in the inner cavity 200 enters the air duct cavity 510 through the first pipe 570, the connecting member 560 and the second opening 530, and then flows to the outside of the steam oven.

[0208] When the humidity detection device detects that the humidity in the inner cavity 200 drops to the second preset value, the door lock structure releases the locking state of the door body 300, allowing the door body 300 to be opened.

[0209] The return water pump 450 is started to pump the water in the water-vapor separator 440, the steam generator 420 and the pipeline back into the water box 410, effectively preventing bacteria from growing when the equipment is not used for a long time.

[0210] In some embodiments, during cooking, the humidity detection device continuously detects the humidity in the inner cavity 200. When the steam concentration is not less than the third preset value, the above-mentioned rapid exhaust mode is activated to quickly exhaust the steam in the cavity.

[0211] When the humidity detection device detects that the humidity in the inner cavity 200 is less than the third preset value, the above-mentioned rapid exhaust mode is turned off to control the steam concentration in the cavity.

[0212] It should be noted that the humidity detection device can be a humidity detection device commonly used in the related art, such as a humidity sensor, etc., and this embodiment does not make specific limitations here.

[0213] It should be noted that the door lock structure can be a door lock structure commonly used in the related art, and this embodiment does not make specific limitations here.

[0214] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

[0215] For the sake of convenience of explanation, the above description has been made in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. According to the above teachings, various modifications and variations can be obtained. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, so that those skilled in the art can better use the embodiments and various different variations of the embodiments suitable for specific use considerations.

Claims

1. An oven with steam function, characterized in that, Comprising: A housing (100), the housing (100) being configured with a receiving cavity; An inner container (200), the inner container (200) being located within the receiving cavity, the inner container (200) being configured with a cooking cavity; An air duct structure (500), the air duct structure (500) being located within the receiving cavity, the air duct structure (500) being configured with an air duct cavity (510), the air duct cavity (510) being in communication with the exterior of the housing (100), the air duct structure (500) being configured with a first opening (520) and a second opening (530) that are in communication with the air duct cavity (510), the first opening (520) being in communication with the exterior of the air duct structure (500), and the second opening (530) being in communication with the cooking cavity; A blower (600), the blower (600) being located within the air duct cavity (510); A first pressurizing assembly (700), the first pressurizing assembly (700) being located within the receiving cavity, the first pressurizing assembly (700) being configured to change the opening size of the first opening (520); A second pressurizing assembly (800), the second pressurizing assembly (800) being located within the receiving cavity, the second pressurizing assembly (800) being configured to change the opening size of the second opening (530).

2. The steam oven according to claim 1, characterized in that, The first pressurizing assembly (700) is configured to open or close the first opening (520).

3. The steam oven according to claim 2, characterized in that, The air duct structure (500) is located at the top of the inner container (200); The first opening (520) is provided at the top of the air duct structure (500), the first pressurizing assembly (700) is provided at the top of the air duct structure (500), and the first pressurizing assembly (700) moves towards the first opening (520) to open or close the first opening (520).

4. The steam oven according to claim 3, characterized in that, The first pressurizing assembly (700) includes: A first driving member (710), the first driving member (710) being connected to the air duct structure (500); A first sealing member (720), the size of the first sealing member (720) being not less than the size of the first opening (520), the first sealing member (720) being connected to the first driving member (710), and the first driving member (710) driving the first sealing member (720) to move towards the first opening (520) to open or close the first opening (520).

5. The steam oven according to claim 1, wherein The air duct structure (500) is located at the top of the inner container (200); The first opening (520) is provided at the top of the air duct structure (500), and the first opening (520) and the second opening (530) are spaced apart; The second pressurizing assembly (800) is provided at the top of the air duct structure (500), and the second pressurizing assembly (800) moves towards the second opening (530) to change the opening size of the second opening (530).

6. The steam oven according to claim 5, characterized in that, Also included: a connecting piece (560), the connecting piece (560) being arranged at the top of the air duct structure (500), the connecting piece (560) being configured with a connecting cavity (561), the connecting cavity (561) being connected with the second opening (530), and the connecting piece (560) being configured with a third opening connected with the connecting cavity (561); A first pipe (570), wherein the first pipe (570) is connected to the connecting piece (560) and to the inner pot (200), and the third opening is connected to the cooking cavity through the inner cavity of the first pipe (570).

7. The steam oven according to claim 5, characterized in that, The second boosting assembly (800) comprises: A second driving member (810), the second driving member (810) being connected to the air duct structure (500); A second sealing member (820), the size of the second sealing member (820) is smaller than the size of the second opening (530), the second sealing member (820) is connected to the second driving member (810), and the second driving member (810) drives the second sealing member (820) to move toward the second opening (530) to change the opening size of the second opening (530).

8. The steam oven according to any one of claims 1 to 7, characterized in that, The air duct structure (500) comprises: Support plate (550); a cover plate (540), the cover plate (540) being arranged on a side of the support plate (550) away from the inner liner (200), the air duct cavity (510) being formed between the cover plate (540) and the support plate (550); the cover plate (540) comprising: A volute pressurizing portion (541), the fan (600) being located between the volute pressurizing portion (541) and the inner liner (200), the first opening (520) and the second opening (530) being arranged on the volute pressurizing portion (541) and being located in an air inlet area of the fan (600); A first connection portion (542), wherein the first connection portion (542) is connected to the volute pressurizing portion (541).

9. The steam oven according to claim 8, characterized in that, The cover plate (540) further includes a spoiler (543), and the spoiler (543) is arranged on the peripheral side of the first opening (520) and / or the second opening (530).

10. A steam oven, characterized in that, include: A housing (100), wherein the housing (100) is configured with a receiving cavity; An inner pot (200), the inner pot (200) being located in the accommodating cavity, and the inner pot (200) being configured with a cooking cavity; an air duct structure (500), the air duct structure (500) being located in the accommodating cavity, the air duct structure (500) being configured with an air duct cavity (510), the air duct cavity (510) being in communication with the exterior of the housing (100), the air duct structure (500) being configured with a first opening (520) and a second opening (530) in communication with the air duct cavity (510), the first opening (520) being in communication with the exterior of the air duct structure (500), and the second opening (530) being in communication with the cooking cavity; A fan (600), the fan (600) being located in the air duct cavity (510); The first pressurizing assembly (700), the first pressurizing assembly (700) is located in the accommodation cavity; The second pressurizing assembly (800), the second pressurizing assembly (800) is located in the accommodation cavity; When cooking ends, the second pressurizing assembly (800) is configured to increase the opening size of the second opening (530), and the first pressurizing assembly (700) is configured to decrease the opening size of the first opening (520).

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