A cooking device

Abstract

The utility model belongs to the field of electrical appliance technology, and discloses a cooking device. The cooking device includes an inner pot with a cooking cavity and a steam supply component arranged outside the inner pot, and is characterized in that the cooking device has a separated steam channel, an exhaust channel and an exhaust duct, the steam channel is connected to the cooking cavity through an upper air hole, the exhaust channel is connected to the cooking cavity through a lower air hole, the upper air hole is located at the upper part of the cooking cavity and the lower air hole is located at the lower part of the cooking cavity, the steam supply component passes steam into the steam channel, and the exhaust duct can be selectively connected to the steam channel or the exhaust channel in a controlled manner. The cooking device disclosed by the utility model can improve the steam discharge efficiency after cooking while realizing anaerobic or low-oxygen cooking, thereby avoiding the problem of steam rushing to the user when the user opens the door, and improving the safety and user experience of the cooking device.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical appliances, in particular to a cooking device. Background Art

[0002] With the development of technology, cooking equipment such as steamers and steam-bake machines that can cook food with hot steam are becoming more and more widely used. They can expand users' choices of cooking methods and enhance their cooking experience.

[0003] Since cooking equipment uses high-temperature hot steam to cook food, a lot of hot steam will remain in the cooking chamber after cooking. If the user opens the door to take food after cooking, there is a problem of a large amount of high-temperature hot steam rushing towards the user, which can easily cause scalding and cause user experience discomfort.

[0004] In the prior art, an exhaust hole is usually provided at the bottom of the cooking cavity to discharge the oxygen-containing air in the cooking cavity at the beginning of cooking and to discharge the steam in the inner pot after cooking. However, this steam discharge method still has the problem of low steam discharge efficiency. Utility Model Content

[0005] The purpose of the utility model is to provide a cooking device that can achieve anaerobic or low-oxygen cooking while improving the steam discharge efficiency after cooking, avoiding the problem of steam rushing towards the user when the user opens the door, and improving the safety and user experience of the cooking device.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] A cooking device comprises an inner pot with a cooking cavity and a steam supply assembly arranged on the outer side of the inner pot, the cooking device having a separated steam channel, an exhaust channel and an exhaust duct, the steam channel is connected with the cooking cavity through an upper air hole, the exhaust channel is connected with the cooking cavity through a lower air hole, the upper air hole is located at the upper part of the cooking cavity and the lower air hole is located at the lower part of the cooking cavity, the steam supply assembly introduces steam into the steam channel, and the exhaust duct can be selectively connected with the steam channel or the exhaust channel in a controlled manner.

[0008] As an optional technical solution for a cooking device, the cooking device includes an exhaust three-way valve, the exhaust three-way valve having an exhaust port, a first air inlet port and a second air inlet port, the exhaust port is connected to the exhaust duct, the first air inlet port is connected to the exhaust channel, the second air inlet port is connected to the steam channel, and the exhaust three-way valve can control the exhaust port to selectively connect to the first air inlet port or the second air inlet port.

[0009] As an optional technical solution for a cooking device, the exhaust duct and the exhaust three-way valve are arranged on the top of the inner pot.

[0010] As an optional technical solution of a cooking device, the cooking device further comprises an exhaust fan, and the exhaust fan guides the airflow in the exhaust duct to flow out of the cooking device.

[0011] As an optional technical solution for cooking equipment, the upper air holes and the steam channels are provided on both sides of the inner pot, the steam supply component supplies steam to the steam channels on both sides, and the exhaust duct is connected to at least one side of the steam channel.

[0012] As an optional technical solution for a cooking device, the upper air holes are arranged in a matrix, and the coverage area of ​​the upper air holes is a long strip area extending in the horizontal direction;

[0013] And / or, a plurality of the lower air holes are arranged in a matrix, and the coverage area of ​​the lower air holes is a long strip area extending in a horizontal direction.

[0014] As an optional technical solution for a cooking device, the cooking device has an air intake channel. When the steam channel is connected to the exhaust duct, the exhaust channel is disconnected from the exhaust duct, and the air intake channel is connected to the exhaust channel to introduce external airflow into the exhaust channel.

[0015] As an optional technical solution of the cooking device, the cooking device further includes an induced draft fan, which guides external airflow into the exhaust channel through the air inlet channel.

[0016] As an optional technical solution for cooking equipment, the exhaust channel is selectively connected to the exhaust duct through a first exhaust pipe, the air outlet end of the air intake channel is connected to the first exhaust pipe, and an air intake switch valve is provided at the air intake channel to control the opening and closing of the air intake channel.

[0017] As an optional technical solution for a cooking device, the upper air hole and the lower air hole are both opened on the side wall of the inner pot, and the steam channel and the exhaust channel are both located on the outside of the inner pot.

[0018] As an optional technical solution of the cooking device, a steam hood is arranged on the outer side of the inner pot, and the steam hood and the inner pot are surrounded to form the steam channel;

[0019] And / or, the cooking device includes an exhaust hood, and the exhaust hood and the outer wall of the inner pot are combined to form the exhaust channel.

[0020] Beneficial effects of the utility model:

[0021] The cooking device provided by the utility model selectively connects the exhaust duct with the steam channel and the exhaust channel, so that before cooking begins, the cooking device can be switched to a first exhaust state in which the exhaust channel is connected to the exhaust duct and the exhaust duct is disconnected from the steam channel, so that the hot steam generated by the steam supply component enters the cooking cavity through the steam channel. Since the upper air hole is arranged at the upper part of the cooking cavity and the lower air hole is arranged at the lower part of the cooking cavity, the hot steam entering the cooking cavity forms a hot steam layer in the upper part of the cooking cavity because its density is smaller than that of the cold air inside the cooking cavity, so that the hot steam layer squeezes the cold air in the process of downward expansion, prompting the air in the cooking cavity to be discharged into the exhaust channel through the lower air hole and discharged to the external environment through the exhaust duct, effectively reducing the oxygen content in the cooking cavity and realizing anaerobic or low-oxygen cooking. After cooking is finished, the cooking device can be switched to the exhaust state. In the second exhaust state in which the air duct is connected to the steam channel, since the upper air hole is higher than the lower air hole and the hot steam has better upward fluidity due to the lower seal, after cooking is completed, the hot air retained in the cooking cavity can flow from the upper air hole to the steam channel through the natural rising effect, and be discharged to the external environment through the steam channel and the exhaust duct in turn, thereby improving the efficiency of hot steam exhausting from the cooking cavity and improving the effect of hot steam exhaust, thereby avoiding the problem that a large amount of steam in the cooking cavity flows out and rushes towards the user after the user opens the door, reducing the probability of the user being scalded, improving the safety of the cooking device, and improving the user's experience of the cooking device; furthermore, the cooking device can be switched between the first exhaust state and the second exhaust state by selectively connecting the exhaust duct with the steam channel and the exhaust channel, which can simplify the structure of the cooking device while enriching the functions of the cooking device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a partial structural schematic diagram of a cooking device provided in Embodiment 1 of the present utility model;

[0023] Figure 2 is a top view of the cooking device provided in the first embodiment of the utility model;

[0024] Figure 3 It is a partial structural diagram of the cooking device provided in the second embodiment of the present utility model.

[0025] In the figure:

[0026] 1. Inner pot; 11. Cooking cavity; 12. Upper air hole; 13. Lower air hole; 2. Steam hood; 3. Exhaust hood; 5. Exhaust assembly; 51. Exhaust hood; 52. Exhaust fan; 53. Exhaust three-way valve; 54. First exhaust pipeline; 55. Second exhaust pipeline; 56. Exhaust duct; 6. Air intake assembly; 61. Drainage fan; 62. Air intake switch valve; 7. Steam supply assembly; 71. Steam generator; 72. Steam main pipe; 73. Steam branch pipe; 8. Machine frame; 9. Control panel. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0028] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0029] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0030] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] Embodiment 1

[0032] like Figure 1 and Figure 2As shown, this embodiment provides a cooking device with a steam cooking function, which can discharge the air in the cooking cavity 11 at the beginning of cooking to reduce the oxygen content in the cooking cavity 11, realize anaerobic or low-oxygen cooking, improve the taste of cooked food and the nutritional value of cooked food, and also can realize the rapid discharge of steam in the cooking cavity 11 after cooking, thereby improving the user experience of the cooking device. The cooking device can be, but is not limited to, a steamer, a steam-bake integrated machine, a microwave steam-bake integrated machine, etc.

[0033] Specifically, the cooking device includes a body, an inner pot 1, a door, a steam supply assembly 7 and a control panel 9. The body includes a frame 8 and a housing (not shown) disposed outside the frame 8, the inner pot 1 is disposed inside the body and has a cooking cavity 11 with a front opening, the door is disposed at the front side of the housing and can selectively open or close the front opening of the cooking cavity 11; the steam supply assembly 7 is used to supply steam to the cooking cavity 11; the control panel 9 is communicatively connected with the steam supply assembly 7 to control the operation of the steam supply assembly 7.

[0034] In this embodiment, the cooking device has separated steam passages, exhaust passages and exhaust ducts. The steam passage is connected to the cooking cavity 11 through an upper air hole 12, and the exhaust passage is connected to the cooking cavity 11 through a lower air hole 13. The upper air hole 12 is located at the upper part of the cooking cavity 11 and the lower air hole 13 is located at the lower part of the cooking cavity 11. The steam supply component 7 supplies steam to the steam passage, and the exhaust duct can be selectively connected to the steam passage or the exhaust passage in a controlled manner.

[0035] The cooking device provided in this embodiment has a first exhaust state and a second exhaust state because the exhaust air duct is selectively connected with the steam channel and the exhaust channel:

[0036] When the cooking device is in the first exhaust state, the exhaust duct is disconnected from the steam duct, and the exhaust duct is connected to the exhaust duct, the steam supply assembly 7 works and passes the generated hot steam into the steam duct, and the hot steam in the steam duct passes into the cooking cavity 11 through the upper air hole 12; the hot steam entering the cooking cavity 11 forms a hot steam layer on the top of the cooking cavity 11 and squeezes the cold air inside the cooking cavity 11 downward, so that the cold air can enter the exhaust duct through the lower air hole 13, and enter the exhaust duct from the exhaust duct and then be discharged outside the cooking device;

[0037] When the cooking device is in the second exhaust state, the exhaust duct is connected to the steam channel, that is, the cooking cavity 11, the upper air hole 12, the steam channel and the exhaust duct are connected in sequence to form a steam exhaust channel, and the hot steam in the cooking cavity 11 is discharged into the external environment through the steam exhaust channel.

[0038] That is, the cooking device provided in the present embodiment selectively connects the exhaust duct with the steam channel and the exhaust duct, so that before cooking begins, the cooking device can be switched to the first exhaust state in which the exhaust duct is connected with the exhaust duct and the exhaust duct is disconnected from the steam channel, so that the hot steam generated by the steam supply component 7 enters the cooking cavity 11 through the steam channel. Since the upper air hole 12 is arranged at the upper part of the cooking cavity 11 and the lower air hole 13 is arranged at the lower part of the cooking cavity 11, the hot steam entering the cooking cavity 11 forms a hot steam layer at the upper part of the cooking cavity 11 due to its smaller density than the cold air inside the cooking cavity 11, so that the hot steam layer squeezes the cold air in the process of expanding downward, prompting the air in the cooking cavity 11 to be discharged into the exhaust duct through the lower air hole 13, and then discharged to the external environment through the exhaust duct, thereby effectively reducing the oxygen content in the cooking cavity 11 and realizing anaerobic or low-oxygen cooking. After cooking, the cooking can be stopped. The device switches to the second exhaust state in which the exhaust duct is connected to the steam channel. Since the upper air hole 12 is higher than the lower air hole 13 and the hot steam has better upward fluidity due to the lower seal, after cooking is completed, the hot air retained in the cooking cavity 11 can flow from the upper air hole 12 to the steam channel under the action of natural rising, and be discharged to the external environment through the steam channel and the exhaust duct in turn, thereby improving the efficiency of hot steam exhausting from the cooking cavity 11 and improving the effect of hot steam exhaust, thereby avoiding the problem that a large amount of steam in the cooking cavity 11 flows out and rushes towards the user after the user opens the door, reducing the probability of the user being scalded, improving the safety of the cooking device, and improving the user's experience of the cooking device; furthermore, the cooking device is switched between the first exhaust state and the second exhaust state through the selective connection of the exhaust duct with the steam channel and the exhaust channel, which can simplify the structure of the cooking device while enriching the function of the cooking device.

[0039] In this embodiment, upper air holes 12 are provided on both the left and right sides of the cooking cavity 11, and steam channels are provided on both the left and right sides of the inner pot 1. The steam channels are connected to the upper air holes 12 on the corresponding sides, and the steam supply component 7 is used to supply steam to the steam channels on both sides at the same time. This arrangement allows hot steam to be sprayed into the cooking cavity 11 from both the left and right sides, and the steam can quickly fill the top of the cooking cavity 11, thereby improving the air exhaust efficiency; at the same time, the steam channels are arranged on the left and right sides of the inner pot 1, which can reduce the space occupied by the steam channels on the top of the inner pot 1, and improve the rationality of the spatial layout inside the cooking device; furthermore, since the steam channels are arranged on the left and right sides of the inner pot 1, the condensed water generated during the steam intake process will not directly drip down into the food in the cooking cavity 11, which is conducive to ensuring the taste of the cooked food and improving the cooking experience.

[0040] In another embodiment, the steam channel may be disposed at the top of the inner container 1. In another embodiment, the steam channel may be disposed at the rear side of the inner container 1 and extend in the left-right direction.

[0041] Preferably, there are a plurality of upper air holes 12 arranged in a matrix, and the coverage area of ​​the upper air holes 12 is a long strip extending in the horizontal direction. Thus, the size of a single upper air hole 12 can be reduced while ensuring the amount of steam entering the cooking cavity 11 and the speed of steam entering the cooking cavity 11, so that when the steam enters the cooking cavity 11 through the steam channel through the plurality of upper air holes 12, the flow of the steam is uniformed, which is conducive to achieving uniformity of steam at various locations in the cooking cavity 11.

[0042] That is, in this embodiment, the upper air holes 12 are arranged in several rows along the height direction, each row of upper air holes 12 includes a plurality of upper air holes 12 arranged at intervals along the front-to-back direction, and the area covered by the upper air holes 12 is a long strip area extending along the front-to-back direction.

[0043] The height of the cooking cavity 11 in the vertical direction is H, and the distance between the upper air hole 12 on the upper side and the top wall of the cooking cavity 11 is d1, 0<d1≤0.2H, so that the steam inlet position of the inner pot 1 can be closer to the top of the cooking cavity 11, thereby being able to quickly squeeze the air at the top of the cooking cavity 11 downward, improving the air exhaust effect, and also helping to improve the efficiency of steam discharge after cooking.

[0044] In this embodiment, the steam channel and the exhaust channel are both arranged on the outside of the inner pot 1, thereby avoiding the steam channel and the exhaust channel from occupying the internal space of the inner pot 1 and ensuring the convenience of arranging food inside the cooking cavity 11; at the same time, this arrangement is conducive to realizing the connection between the steam channel and the steam supply component 7 and the connection between the exhaust channel and the exhaust duct, thereby simplifying the structure of the inner pot 1 and reducing the difficulty of processing the inner pot 1.

[0045] In other embodiments, the steam channel may also be provided inside the inner liner 1 , that is, a cover structure is provided inside the inner liner 1 , and the cover structure and the inner wall of the inner liner 1 are combined to form the steam channel.

[0046] In order to improve the convenience of forming the steam channel, in this embodiment, a steam cover 2 is provided on the outer side of the inner pot 1, and the steam cover 2 and the inner pot 1 together form a steam channel. By providing the steam cover 2, it is convenient to control the shape, size and position of the steam channel. The steam cover 2 is provided in a one-to-one correspondence with the steam channel.

[0047] Preferably, the upper air holes 12 are opened on the side wall of the inner pot 1, and the steam hood 2 is detachably connected to the inner pot 1, thereby simplifying the processing of the inner pot 1 and reducing the processing difficulty of the inner pot 1. A sealing ring is provided at the connection between the steam hood 2 and the inner pot 1, and the sealing ring is arranged around the steam cavity, and all the upper air holes 12 on the corresponding side are located on the inner side of the sealing ring to achieve sealing at the connection between the steam hood 2 and the inner pot 1.

[0048] In another embodiment, the steam hood 2 is integrally formed with the inner liner 1, that is, the opening of the steam chamber is formed on the side wall of the inner liner 1, and a sealing plate is installed on the inner liner 1, which covers the opening of the steam chamber and has a plurality of upper air holes 12. The sealing plate and the inner liner 1 can be welded or detachably connected. In another embodiment, the steam hood 2 can also be welded to the outer side of the inner liner 1.

[0049] In order to facilitate the exhaust of steam, an upper exhaust port is provided on the upper side of the steam hood 2, and the upper exhaust port is connected to the exhaust air duct. Thus, the steam entering the steam channel from the cooking cavity 11 flows upward. A steam inlet is also provided on the steam hood 2, and the steam inlet is connected to the steam supply assembly 7. The steam inlet can be provided at the bottom of the steam hood 2 or at the rear end of the steam hood 2.

[0050] In this embodiment, a plurality of lower air holes 13 are arranged in a determinant, and the coverage area of ​​the lower air holes 13 is a long strip extending in the horizontal direction. This arrangement can increase the total opening area of ​​the lower air holes 13 while reducing the opening area of ​​a single lower air hole 13, thereby increasing the exhaust speed. Specifically, the lower air holes 13 are arranged on at least one side wall of the inner liner 1, and the lower air holes 13 are arranged in a plurality of rows in the vertical direction, and each row includes a plurality of lower air holes 13 arranged at intervals in the horizontal direction, thereby increasing the range of action of the lower air holes 13, thereby improving the exhaust efficiency.

[0051] In this embodiment, the distance between the lower air hole 13 at the lower side and the cavity top of the cooking cavity 11 is d2, H>d2≥0.8H, so that the lower air hole 13 is arranged as close to the bottom of the cooking cavity 11 as possible to better promote the discharge of air at the bottom of the cooking cavity 11, which is conducive to quickly exhausting the air and improving the exhaust efficiency.

[0052] In this embodiment, lower air holes 13 and exhaust channels are provided on both the left and right sides of the inner liner 1, and the lower air holes 13 on each side are connected to the exhaust channels on the corresponding side, thereby achieving exhaust on both sides at the same time. In other embodiments, the lower air holes 13 may also be provided only on the left side, right side, or rear side of the inner liner 1.

[0053] In order to improve the connectivity between the exhaust passage and the multiple lower air holes 13 on the same side, in this embodiment, an exhaust hood 3 is provided on the outside of the inner liner 1, and the exhaust hood 3 and the inner liner 1 are surrounded to form an exhaust passage, and the exhaust hood 3 and the exhaust passage are arranged one by one. In this arrangement, the shape, size and arrangement of the exhaust passage can be flexibly arranged through the structural arrangement of the exhaust hood 3, thereby improving the convenience of forming the exhaust passage.

[0054] It can be understood that in other embodiments, a lower air hole 13 can be set on one side wall or multiple side walls of the inner tank 1, and an exhaust pipe is connected to the lower air hole 13, the inner cavity of the exhaust pipe forms an exhaust channel, and the exhaust pipe and the lower air hole 13 are set in a one-to-one correspondence.

[0055] The cooking cavity 11 has a symmetry plane perpendicular to the left and right directions, and the upper air inlets on both sides are symmetrically arranged relative to the symmetry plane, thereby making the steam inlet arrangement on both sides of the cooking cavity 11 more consistent, and better ensuring the uniformity of steam inlet from the upper air holes 12 on both sides. Furthermore, the lower air holes 13 on both sides are symmetrically arranged relative to the symmetry plane.

[0056] In order to better realize the selective connection between the exhaust air duct and the steam channel and the exhaust channel, in this embodiment, an exhaust assembly 5 is arranged between the inner pot 1 and the casing, and the exhaust assembly 5 includes an exhaust three-way valve 53, and the exhaust three-way valve 53 has an outlet port, a first air inlet port and a second air inlet port. The outlet port is connected to the exhaust air duct, the second air inlet port is connected to the steam channel, and the first air inlet port is connected to the exhaust channel. The exhaust three-way valve 53 can control the outlet port to selectively connect with the first air inlet port or the second air inlet port. That is, the exhaust three-way valve 53 has a first conduction state in which the outlet port is connected to the first air inlet port and a second conduction state in which the outlet port is connected to the first air inlet port. When the exhaust three-way valve 53 is in the first conduction state, the cooking device is in the first exhaust state, and when the exhaust three-way valve 53 is in the second conduction state, the cooking device is in the second exhaust state.

[0057] The exhaust three-way valve 53 is a solenoid valve, and the exhaust three-way valve 53 is communicatively connected with the control panel 9 so that the control panel 9 can control the action of the exhaust three-way valve 53 .

[0058] In order to improve the connection convenience between the exhaust three-way valve 53 and the steam channel and the exhaust channel, the exhaust channel is connected to the first air inlet port of the exhaust three-way valve 53 through a first exhaust pipeline 54, the steam channel is connected to the second air inlet port of the exhaust three-way valve 53 through a second exhaust pipeline 55, and the exhaust duct is connected to the air outlet port of the exhaust three-way valve 53 through an exhaust pipe 56.

[0059] In other embodiments, the exhaust passage is communicated with the exhaust air duct through the first exhaust pipeline 54, the steam passage is communicated with the exhaust air duct through the second exhaust pipeline 55, a first control valve is provided on the first exhaust pipeline 54, and a second control valve is provided on the second exhaust pipeline 55. When the first control valve is opened and the second control valve is closed, the cooking device is in the first exhaust state; when the first control valve is closed and the control valve is opened, the cooking device is in the second exhaust state.

[0060] In this embodiment, the exhaust duct is located above the inner pot 1, so that the steam flowing out of the cooking cavity 11 can flow upward into the exhaust duct, thereby facilitating the upward rise of hot steam to achieve the discharge of hot steam, which can further improve the efficiency of steam discharge. Furthermore, the exhaust three-way valve 53 is installed on the top of the inner pot 1, so that the first exhaust pipeline 54 and the second exhaust pipeline 55 are distributed roughly from bottom to top, which is conducive to the flow of hot steam in the pipeline.

[0061] A front air outlet is formed at the front side of the cooking device, and the front end of the exhaust air duct is open and connected to the front air outlet, so that the gas exhausted from the exhaust air duct is discharged to the front side of the cooking device through the front air outlet. Specifically, the control panel 9 is installed at the upper end of the machine body and located on the upper side of the machine door, and the above-mentioned front air outlet is formed between the machine door and the control panel 9.

[0062] Preferably, an exhaust fan 52 is provided in the exhaust duct, and the exhaust fan 52 is used to guide the gas in the steam channel or the exhaust channel into the exhaust duct, so as to achieve rapid exhaust of air or steam in the cooking cavity 11.

[0063] In this embodiment, one exhaust three-way valve 53 is provided, and the first air inlet port is connected to both exhaust channels. That is, the first exhaust pipeline 54 includes a first exhaust main pipe and two first exhaust branch pipes, the air inlet ends of the two first exhaust branch pipes are respectively connected to the two exhaust channels, the air outlet ends of the two first exhaust branch pipes are connected to the air inlet end of the first exhaust main pipe, and the air outlet end of the first exhaust main pipe is connected to the first air inlet port of the exhaust three-way valve 53. In other embodiments, the two exhaust channels may be directly connected through a pipeline.

[0064] In this embodiment, the second air inlet port of the exhaust three-way valve 53 is connected to a steam channel, that is, when the steam channel is used to intake steam into the cooking cavity 11, the steam is taken in through the steam channels on both sides; when the steam channel is used to exhaust the cooking cavity 11, the steam in the cooking cavity 11 can be discharged from the cooking cavity 11 on one side.

[0065] In another embodiment, the two steam channels are connected to the exhaust duct at the same time, that is, the second exhaust pipeline 55 includes a second exhaust main pipe and two second exhaust branch pipes, the air inlet ends of the two second exhaust branch pipes are respectively connected to the two steam channels, the air outlet ends of the two second exhaust branch pipes are connected to the air inlet end of the second exhaust main pipe, and the air outlet end of the second exhaust main pipe is connected to the second air inlet port of the exhaust three-way valve 53.

[0066] In other embodiments, two exhaust three-way valves 53 may be provided, that is, the steam channel and the exhaust channel on one side are connected to the corresponding port of one exhaust three-way valve 53, and the steam channel and the exhaust channel on the other side are connected to the corresponding port of the other exhaust three-way valve 53, and two corresponding first exhaust pipelines 54, second exhaust pipelines 55 and exhaust pipes 56 are each provided.

[0067] The steam supply assembly 7 includes a steam generator 71 and a steam pipe group, and the steam outlet of the steam generator 71 is connected to the steam channels on both sides through the steam pipe group. The steam generator 71 is arranged at the rear side of the inner tank 1. This arrangement makes the exhaust assembly 5 mainly concentrated on the top of the inner tank 1, the steam hood 2 and the exhaust hood 3 are arranged on the left and right sides of the inner tank 1, and the steam supply assembly 7 is arranged at the rear side of the inner tank 1, thereby effectively avoiding interference between the various structures and improving the rationality of the layout of the various structures on the outside of the inner tank 1.

[0068] The steam pipe group includes a main steam pipe and two steam branches 73. One end of the main steam pipe is connected to the steam outlet of the steam generator 71, and the other end of the main steam pipe group is connected to the air inlet ends of the two steam branches 73. The air outlet ends of the two steam branches 73 are respectively connected to the steam inlets of the two steam chambers in a sealed manner. That is, the steam generated by the steam generator 71 flows out through the steam main pipe 72 and is supplied to the two steam chambers after being diverted by the two steam branches 73. This arrangement allows one steam generator 71 to supply steam to the two steam chambers, which is beneficial to ensure the synchronization of the steam supply to the steam chambers on both sides and reduce costs. In other embodiments, a steam generator 71 may be provided corresponding to the steam chamber on each side.

[0069] Embodiment 2

[0070] This embodiment provides a cooking device, and the cooking device provided in this embodiment has a structure that is basically the same as that in the first embodiment, with only some differences in settings. This embodiment will no longer repeat the same contents as those in the first embodiment.

[0071] The cooking device has an air intake component 6, which has an air intake channel. When the steam channel is connected to the exhaust duct, the exhaust duct is disconnected from the exhaust duct, and the air intake channel is connected to the exhaust channel to introduce external airflow into the exhaust channel.

[0072] This arrangement enables, when the cooking device is in the second exhaust state, when the hot steam in the cooking cavity 11 is discharged into the exhaust duct through the steam passage, the external air flow can enter the cooking cavity 11 through the air intake passage, the exhaust passage and the lower air hole 13 in sequence, thereby balancing the pressure in the cooking cavity 11, ensuring the smoothness of the hot steam discharge, and facilitating the exhaust of the hot steam; at the same time, the external gas enters the cooking cavity 11, which can also realize the cooling of the temperature inside the cooking cavity 11; furthermore, air is drawn into the exhaust cavity through the air intake passage, and then into the cooking cavity 11 through the exhaust passage, which can simplify the air intake structure of the cooking cavity 11, improve the structural versatility of the exhaust passage, and reduce the cost of the cooking device.

[0073] In order to further improve the exhaust efficiency of hot steam, in this embodiment, the exhaust assembly 5 further includes a drainage fan 61, which guides the external airflow into the exhaust channel through the air inlet channel. Thus, the flow rate of the external airflow entering the air inlet channel can be increased through the drainage effect of the drainage fan 61, so that the airflow entering the cooking cavity 11 can better squeeze the steam in the cooking cavity 11, thereby promoting the rapid exhaust of the steam.

[0074] In this embodiment, the induced flow fan 61 is a blower, which is arranged at the air inlet passage to blow the external air flow into the air inlet passage. In other embodiments, the induced flow fan 61 can be an exhaust fan to draw the external air into the air inlet passage.

[0075] Furthermore, an air inlet is formed on the front side of the cooking device, and the induced draft fan 61 is arranged at the top of the inner pot 1 and the air inlet end is arranged toward the air inlet. Specifically, an air inlet is formed between the control panel 9 and the top of the door. In this embodiment, the air inlet and the front air outlet are arranged side by side in the left and right direction.

[0076] It is worth noting that in this embodiment, the cooking device includes both the induced draft fan 61 and the exhaust fan 52, so that when the exhaust fan 52 promotes the hot steam to flow into the exhaust duct, the induced draft fan 61 also promotes the outside air to enter the exhaust duct, thereby increasing the wind pressure of the air flow, thereby realizing the rapid discharge of the steam inside the cooking cavity 11. In other embodiments, only one of the induced draft fan 61 and the exhaust fan 52 may be provided.

[0077] Furthermore, the outlet end of the air inlet channel is connected to the first exhaust pipeline 54, and an air inlet switch valve 62 is provided at the air inlet channel, and the air inlet switch valve 62 controls the on-off of the air inlet channel. Thus, the on-off of the air inlet pipe is controlled by the air inlet switch valve 62, so as to realize the selective air intake to the exhaust channel; at the same time, the air outlet end of the air inlet channel is connected to the first exhaust pipeline 54, so as to realize the connection between the air inlet channel and the exhaust channel, which can shorten the length of the air inlet channel and simplify the pipeline structure outside the inner tank 1.

[0078] Specifically, the intake channel is connected to the first exhaust manifold of the first exhaust pipeline 4, so that the airflow entering from the intake channel can be split at the other end of the first exhaust manifold and enter the two first exhaust branch pipes respectively, thereby realizing the air intake of one exhaust channel to two exhaust channels.

[0079] Furthermore, a three-way joint is connected to the end of the first exhaust pipeline 54, one port of the three-way joint is connected to the first exhaust pipeline 54, one port is connected to the first intake port of the exhaust three-way valve 53, and the other port is connected to the outlet end of the intake channel, thereby simplifying the connection joints of the exhaust three-way valve 53, the intake channel and the first exhaust pipeline 54.

[0080] The three-way joint, the air intake switch valve 62 and the drainage fan 61 are all arranged at the top of the inner pot 1, and one end of the air intake switch valve 62 is connected to the air outlet end of the drainage fan 61, and the other end of the air intake switch valve 62 is connected to the three-way joint, and the air intake end of the drainage fan 61 faces the air inlet. This arrangement enables the inner cavity of the drainage fan 61 and the inner cavity of the air intake switch valve 62 to be connected to form an air intake channel, without the need to set up an additional pipeline for air intake, thereby simplifying the structure of the cooking device.

[0081] In this embodiment, the exhaust three-way valve 53 and the intake switch valve 62 are both solenoid valves, and the exhaust three-way valve 53 and the intake switch valve 62 are both communicatively connected to the control panel 9 so that the control panel 9 controls the actions of the exhaust three-way valve 53 and the intake switch valve 62.

[0082] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A cooking device, comprising an inner pot (1) having a cooking cavity (11) and a steam supply assembly (7) arranged outside the inner pot (1), characterized in that: The cooking device comprises a steam channel, an exhaust channel and an exhaust duct which are separated from each other; the steam channel is connected to the cooking cavity (11) through an upper air hole (12); the exhaust channel is connected to the cooking cavity (11) through a lower air hole (13); the upper air hole (12) is located at the upper part of the cooking cavity (11) and the lower air hole (13) is located at the lower part of the cooking cavity (11); the steam supply component (7) introduces steam into the steam channel; and the exhaust duct can be selectively connected to the steam channel or the exhaust channel in a controlled manner.

2. The cooking device according to claim 1, characterized in that: The cooking device comprises an exhaust three-way valve (53), wherein the exhaust three-way valve (53) has an exhaust port, a first air inlet port and a second air inlet port, wherein the exhaust port is connected to the exhaust air duct, the first air inlet port is connected to the exhaust channel, and the second air inlet port is connected to the steam channel, and the exhaust three-way valve (53) can control the exhaust port to selectively connect to the first air inlet port or the second air inlet port.

3. The cooking device according to claim 2, characterized in that: The exhaust air duct and the exhaust three-way valve (53) are arranged on the top of the inner container (1).

4. The cooking device according to claim 1, characterized in that: The cooking device further comprises an exhaust fan (52), wherein the exhaust fan (52) guides the airflow in the exhaust air duct to flow out of the cooking device.

5. The cooking device according to claim 1, characterized in that: The upper air hole (12) and the steam channel are provided on both sides of the inner pot (1); the steam supply component (7) supplies steam to the steam channels on both sides; and the exhaust duct is connected to at least one side of the steam channel.

6. The cooking device according to claim 1, characterized in that A plurality of the upper air holes (12) are arranged in a matrix, and the coverage area of ​​the upper air holes (12) is a long strip area extending in the horizontal direction; And / or, a plurality of the lower air holes (13) are arranged in a matrix, and the coverage area of ​​the lower air holes (13) is a long strip area extending in the horizontal direction.

7. The cooking device according to any one of claims 1 to 6, characterized in that: The cooking device has an air intake passage. When the steam passage is connected to the exhaust passage, the exhaust passage is disconnected from the exhaust passage. The air intake passage is connected to the exhaust passage to introduce external airflow into the exhaust passage.

8. The cooking device according to claim 7, characterized in that The cooking device further comprises an induction fan (61), wherein the induction fan (61) guides external airflow to enter the exhaust channel through the air inlet channel.

9. The cooking device according to claim 7, characterized in that The exhaust passage is selectively connected to the exhaust air duct via a first exhaust pipeline (54); the air outlet end of the intake passage is connected to the first exhaust pipeline (54); an intake switch valve (62) is provided at the intake passage, and the intake switch valve (62) controls the on / off of the intake passage.

10. The cooking device according to any one of claims 1 to 6, characterized in that: The upper air hole (12) and the lower air hole (13) are both opened on the side wall of the inner container (1), and the steam channel and the exhaust channel are both located on the outside of the inner container (1).

11. The cooking device according to claim 10, characterized in that A steam cover (2) is arranged on the outer side of the inner container (1), and the steam cover (2) and the inner container (1) together form the steam channel; And / or, the cooking device comprises an exhaust hood (3), and the exhaust hood (3) and the outer wall of the inner pot (1) are combined to form the exhaust channel.

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