A cooking liner assembly and a steam oven

Abstract

The present application relates to a kind of cooking liner assembly and steam oven, including first body and second body, the second body is movably inserted in the inner cavity of the first body along front-back direction, and the back of the first body is equipped with hot air machine, the back of the second body is equipped with hot air chamber, the back of the second body is opened to make the impeller of the hot air machine in hot air chamber, and the outer periphery of the impeller is equipped with back heating pipe, and the hot air chamber has air inlet and first air outlet respectively with the inner cavity of the second body, wherein, the air inlet is opposite with the impeller front-back, and the first air outlet is surrounded in the four around the air inlet.The first body and the second body are split structure in the present application, and the second body is detachably connected with the first body in the form of insertion, easy to disassemble and assemble, and since the second body is detachably arranged, the second body can be disassembled from the first body for cleaning, which can be manually cleaned, or put into cleaning machine for automatic cleaning, and cleaning is more convenient.

Description

Technical Field

[0001] This invention relates to the field of cooking equipment, and more particularly to a cooking inner pot assembly and a steam oven. Background Technology

[0002] Existing steam ovens have a hot air baffle at the rear of the inner cavity, forming a hot air chamber. During cooking, the hot air impeller in the hot air chamber rotates, driving air from the inner cavity into the chamber to be heated. The heated air then flows back into the inner cavity under the drive of the hot air impeller, thus achieving hot air circulation within the inner cavity. The hot air baffle is usually fixedly installed at the rear of the inner cavity, which is cumbersome to install. Furthermore, the hot air baffle has air inlets and outlets (usually arranged with small holes), which can lead to grease and other contaminants adhering to the baffle after long-term use, making it difficult to clean.

[0003] Furthermore, existing steam ovens have hot air exiting from only one side (rear) of the inner cavity, resulting in uneven temperature and airflow distribution within the cavity. To address this issue, existing technologies include installing hot air baffles on multiple sides of the inner cavity to achieve multi-directional airflow, as exemplified by Chinese invention patents CN201910008076.1 (publication number CN111407158A) and ZL201911042252.X (authorization announcement number CN110840279A). However, existing multi-directional airflow structures generally require multiple drive mechanisms (i.e., each hot air blower needs its own motor), resulting in significant operating noise, complex structure, and high manufacturing costs. Summary of the Invention

[0004] The first technical problem to be solved by the present invention is to provide a cooking inner pot assembly that is easy to assemble, disassemble, and clean, in contrast to the prior art.

[0005] The second technical problem to be solved by the present invention is to provide a cooking inner pot component that has multiple air outlets, a simple structure, and low production cost, in contrast to the prior art.

[0006] The third technical problem to be solved by the present invention is to provide a cooking inner pot component with good uniformity of internal temperature field and air field compared with the prior art.

[0007] The fourth technical problem to be solved by the present invention is to provide a steam oven having the above-described cooking inner cavity assembly, in contrast to the prior art.

[0008] The technical solution adopted by the present invention to solve at least one of the above-mentioned technical problems is as follows: a cooking inner pot assembly, characterized in that it includes a first inner pot body fixedly disposed and open at the front, and a second inner pot body that matches the size of the inner cavity of the first inner pot body and is also open at the front. The second inner pot body is movably inserted into the inner cavity of the first inner pot body in the front-back direction. A hot air fan is installed on the back of the first inner pot body, and a hot air chamber is provided on the back of the second inner pot body. The back of the second inner pot body is open so that the impeller of the hot air fan is located in the hot air chamber. A back heating pipe is provided around the outer periphery of the impeller. The hot air chamber has an air inlet and a first air outlet communicating with the inner cavity of the second inner pot body. The air inlet is directly opposite the impeller, and the first air outlet surrounds the air inlet.

[0009] Furthermore, at least one pair of opposite sidewalls of the second chamber are respectively provided with air outlet channels, each air outlet channel communicating with the aforementioned hot air chamber, and each having a second air outlet communicating with the inner cavity of the second chamber. In this way, the hot air in the hot air chamber can not only flow back from the inner back side of the second chamber to the inner cavity of the second chamber, but also simultaneously flow back to the inner cavity of the second chamber through the corresponding inner side, realizing multi-faceted air outlet, improving the uniformity of the temperature field and flow field inside the second chamber, and requiring only a single hot air fan instead of multiple drive sources, reducing operating noise and saving production costs.

[0010] Furthermore, the second inner pot is provided with the aforementioned air outlet channels on its upper, lower, left, and right side walls, respectively, which are designated as upper air outlet, lower air outlet, left air outlet, and right air outlet. This allows for five-sided air outlets (upper inner side, lower inner side, left inner side, right inner side, and rear inner side) inside the second inner pot, further improving the uniformity of the temperature and airflow fields within the second inner pot, thereby enhancing the cooking effect.

[0011] Furthermore, each side wall of the second liner is a hollow structure. The inner cavity of the rear side wall of the second liner constitutes the aforementioned hot air chamber, while the inner cavities of the other side walls respectively constitute the aforementioned air outlet channels. The air inlet and the first air outlet are respectively located on the inner back plate of the rear side wall of the second liner, while each second air outlet is respectively located on the inner side plate of the corresponding side wall of the second liner. This simplifies the internal structure of the second liner and allows for better formation of the air outlet channels.

[0012] Furthermore, the top and bottom ends of the rear sidewall of the second chamber are respectively provided with a first air guide and a second air guide along the length direction, while the left and right ends are respectively provided with a third air guide and a fourth air guide along the length direction. The first air guide connects the hot air chamber to the upper air outlet channel, the second air guide connects the hot air chamber to the lower air outlet channel, the third air guide connects the hot air chamber to the left air outlet channel, and the fourth air outlet connects the hot air chamber to the right air outlet channel. The opening areas of the first and second air guides are larger than those of the third and fourth air guides. By providing these air guides, the hot air chamber can be connected to each air outlet channel, and more hot air can be blown into the second chamber from the left and right sidewalls, further improving the uniformity of the temperature and airflow fields inside the second chamber.

[0013] Furthermore, the inner and outer back plates of the rear sidewall of the second chamber extend vertically, and a circular mounting port is provided in the center of the outer back plate for the impeller of the hot air blower to extend into the hot air chamber. The outer back plate around the mounting port slopes inward from front to back circumferentially. When the second chamber is inserted into the first chamber, the edge of the mounting port abuts against the inner back surface of the first chamber circumferentially. In this way, the heated hot air can flow more effectively into the corresponding air guide channels through the air guide ports under the guidance of the inner surface of the outer back plate.

[0014] Furthermore, the upper air outlet channel, lower air outlet channel, left air outlet channel, and right air outlet channel are separated from each other. This avoids mutual interference of airflow in each air outlet channel, improves the uniformity of airflow in each air outlet channel, and thus contributes to the uniformity of temperature and airflow fields inside the second chamber.

[0015] Furthermore, the inner cavities at the four corners of the second bladder are respectively provided with front-to-back extending partitions, each partition separating two adjacent air outlet channels, thereby enabling the separation of each air outlet channel.

[0016] Furthermore, the baffles on both sides of each air outlet channel are inclined from the outside to the inside towards the air outlet channel. In this way, the surface energy of each baffle can guide the airflow, thereby allowing the airflow to be smoothly discharged from the corresponding second air outlet.

[0017] Furthermore, each of the aforementioned baffles is arranged along the diagonal surface of the second bladder. This not only better separates adjacent air outlet channels but also better guides the airflow, allowing the airflow to exit more smoothly from the corresponding second air outlet.

[0018] Furthermore, the first air outlet is formed by a series of first air holes, and each second air outlet is formed by a series of second air holes. The total opening area of ​​the first air outlet is smaller than the total opening area of ​​each second air outlet. The first air outlet is closer to the impeller of the hot air blower, so the air pressure at the first air outlet is higher than that at each second air outlet. By designing the total opening area of ​​the first and second air outlets as described above, the airflow from all sides of the second chamber is more uniform, which further improves the uniformity of the temperature and airflow fields inside the second chamber.

[0019] Furthermore, the total opening area of ​​each of the second air outlets is equal. This ensures more uniform airflow from the upper inner side, lower inner side, left inner side, and right inner side of the second liner.

[0020] Furthermore, the arrangement of the second air outlets on each of the second air outlets and their positions on the corresponding inner side plates of the second liner are identical. This ensures that the air outlets on the upper inner side, lower inner side, left inner side, and right inner side of the second liner are essentially consistent.

[0021] Furthermore, each of the second air outlets also includes a third air outlet, which is respectively located at the front and rear ends of the inner side plate of the corresponding side wall along the left and right direction. The front edge of each third air outlet extends along the length direction toward the corresponding air outlet channel to form a guide wall. On the inner side plate of each side wall of the second liner, the air volume in the middle is generally greater than that at the front and rear ends (especially when the airflow velocity inside the air outlet channel is high). In this way, the air guided by the guide wall can reduce the difference in air volume between the front and rear ends and the middle, promoting the uniformity of the temperature field and air field in the horizontal direction inside the second liner.

[0022] Furthermore, the air guide walls of each of the third air outlets are tilted backward to further improve the air guiding effect.

[0023] Furthermore, the inner side plates of each side wall of the second bladder are provided with at least two rows of third air outlets at intervals at both the front and rear ends. The height of the guide wall of each row of third air outlets decreases from front to rear. Since the airflow velocity at the rear end is greater than that at the front end, the height of the guide wall of each row of third air outlets at the front end is lower than that of the corresponding row of third air outlets at the rear end. This allows the airflow to be better blown out from the front and rear ends of the inner side plates of each side wall.

[0024] Furthermore, a third air outlet is provided at each of the four corners of the front edge of the second inner cavity, and each third air outlet is connected to a corresponding air outlet channel. Existing steam ovens suffer from poor cooking results near the door. By providing third air outlets, the airflow to the corners near the door is enhanced, and with the help of the door's inner surface's rebound mechanism, this problem is effectively solved.

[0025] Furthermore, the front opening of the second inner pot extends vertically. This allows the airflow from each third air outlet to better align with the inner surface of the door, thus improving the cooking effect in the corner near the door.

[0026] Furthermore, the rear ends of each side wall of the second inner tank are open, and when the second inner tank is inserted into the first inner tank, the edges of each opening abut against the inner back surface of the first inner tank in the circumferential direction. This facilitates the manufacturing of the second inner tank and further facilitates its cleaning.

[0027] Furthermore, a window is provided on the outer bottom plate of the bottom wall of the second tank. In this way, the heat and steam generated by the heating plate on the bottom wall of the first tank can smoothly enter the lower air outlet channel and then enter the interior of the second tank through the lower air outlet channel.

[0028] Furthermore, a top heating tube is installed on the top wall of the first tank, while a heating plate is installed on the bottom wall.

[0029] The technical solution adopted to further solve the second technical problem mentioned above is: a steam oven, characterized in that it has a cooking inner cavity assembly as described above.

[0030] Compared with the prior art, the advantages of the present invention are as follows: The first and second tanks are separate structures, and the second tank is detachably connected to the first tank via an insert, facilitating easy assembly and disassembly. Furthermore, a hot air chamber is provided on the back of the second tank, allowing air in the second tank to enter the hot air chamber through the air inlet and be heated. The heated air then flows back into the inner cavity of the second tank through the air outlet, thus forming a hot air circulation. Since the second tank is detachable, it can be removed from the first tank for cleaning, either manually or automatically in a cleaning machine, making cleaning very convenient. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the cooking inner pot assembly in an embodiment of the present invention;

[0032] Figure 2 This is a cross-sectional view of the cooking inner pot assembly in an embodiment of the present invention;

[0033] Figure 3 This is a schematic diagram of the structure of the second gallbladder in an embodiment of the present invention;

[0034] Figure 4 for Figure 3 A schematic diagram of the structure from another direction;

[0035] Figure 5 for Figure 3 A structural diagram from another direction;

[0036] Figure 6 for Figure 3 A structural diagram from another direction;

[0037] Figure 7 This is a schematic diagram of the structure of the first gallbladder in an embodiment of the present invention;

[0038] Figure 8 This is a cross-sectional view of the second gallbladder in an embodiment of the present invention. Detailed Implementation

[0039] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0040] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Since the embodiments disclosed in this invention can be arranged in different directions, these terms indicating direction are only for illustration and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity. In addition, features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0041] like Figures 1-8 As shown, a steam oven includes a cooking inner cavity assembly. The cooking inner cavity assembly includes a first inner cavity 1 fixedly disposed and open at the front, and a second inner cavity 2 matching the size of the inner cavity of the first inner cavity 1 and also open at the front. The second inner cavity 2 is movably inserted into the inner cavity of the first inner cavity 1 in a front-rear direction. Furthermore, as... Figure 1 and Figure 2 As shown, the length of the first inner chamber 1 in the front-to-back direction is greater than that of the second inner chamber 2, and the door of the steam oven can cover the opening of the first inner chamber 1.

[0042] Furthermore, a hot air blower 4 is installed on the back of the first liner 1. Specifically, the motor 42 of the hot air blower 4 is installed on the back of the first liner 1, and the impeller 41 of the hot air blower 4 is located in the first liner 1. A hot air chamber 205 is provided on the back of the second liner 2. The back of the second liner 2 is open so that the impeller 41 of the hot air blower 4 is located in the hot air chamber 205. A back heating pipe 5 is provided around the outer periphery of the impeller 41. The hot air chamber 205 has an air inlet 22 and a first air outlet 23 that communicate with the inner cavity of the second liner 2. The air inlet 22 is directly opposite the impeller 41, and the first air outlet 23 is arranged around the air inlet 22.

[0043] In this invention, the first inner tank 1 and the second inner tank 2 are separate structures, and the second inner tank 2 is detachably connected to the first inner tank 1 by insertion, making assembly and disassembly convenient. Furthermore, a hot air chamber 205 is provided on the back of the second inner tank 2. Air in the second inner tank 2 can enter the hot air chamber 205 through the air inlet 22 and be heated. The heated hot air can then flow back into the inner cavity of the second inner tank 2 through the air outlet, thus forming a hot air circulation. Since the second inner tank 2 is detachable, it can be removed from the first inner tank 1 for cleaning. Cleaning can be done manually or automatically in a cleaning machine, making cleaning more convenient. Specifically, in this embodiment, a top heating pipe 3 is installed on the top wall of the first inner tank 1, and a heating plate 7 is installed on the bottom wall.

[0044] Furthermore, at least one pair of opposite sidewalls of the second liner 2 are respectively provided with air outlet channels, each air outlet channel communicating with the hot air chamber 205, and each having a second air outlet 24 communicating with the inner cavity of the second liner 2. In this way, the hot air in the hot air chamber 205 can not only flow back from the inner back side of the second liner 2 to the inner cavity of the second liner 2, but also simultaneously flow back to the inner cavity of the second liner 2 through the corresponding inner side side, achieving multi-directional air outlet, improving the uniformity of the temperature field and flow field inside the second liner 2. Moreover, only a single hot air blower 4 is needed, eliminating the need for multiple drive sources, reducing operating noise and saving production costs. Preferably, in this embodiment, the upper sidewall, lower sidewall, left sidewall, and right sidewall of the second liner 2 are respectively provided with the aforementioned air outlet channels, namely upper air outlet channel 201, lower air outlet channel 202, left air outlet channel 203, and right air outlet channel 204. In this way, the second inner tank 2 can achieve five-sided air outlet (upper inner side, lower inner side, left inner side, right inner side and rear inner side), further improving the uniformity of temperature field and flow field inside the second inner tank 2, thereby improving the cooking effect.

[0045] There are various specific implementation methods for each air outlet channel in this invention. Preferably, each side wall of the second liner 2 is a hollow structure. The inner cavity of the rear side wall of the second liner 2 constitutes the hot air chamber 205, while the inner cavities of the other side walls constitute the respective air outlet channels. The air inlet 22 and the first air outlet 23 are respectively opened on the inner back plate 2b of the rear side wall of the second liner 2, and each second air outlet 24 is respectively opened on the inner side plate 2a of the corresponding side wall of the second liner 2. This simplifies the internal structure of the second liner 2 and allows for better formation of each air outlet channel.

[0046] Furthermore, the top and bottom ends of the rear sidewall of the second chamber 2 are respectively provided with a first air guide 2051 and a second air guide 2052 along the length direction, while the left and right ends are respectively provided with a third air guide 2053 and a fourth air guide 2054 along the length direction. The first air guide 2051 is used to connect the hot air chamber 205 with the upper air outlet channel 201, the second air guide 2052 is used to connect the hot air chamber 205 with the lower air outlet channel 202, the third air guide 2053 is used to connect the hot air chamber 205 with the left air outlet channel 203, and the fourth air outlet is used to connect the hot air chamber 205 with the right air outlet channel 204. Moreover, the opening area of ​​the first air guide 2051 and the second air guide 2052 is larger than that of the third air guide 2053 and the fourth air guide 2054. By setting up air guides, the hot air chamber 205 can be connected to each air outlet channel, and more hot air can be blown into the second bladder 2 from the left and right side walls, further improving the uniformity of the temperature and airflow fields inside the second bladder 2. Specifically, in this embodiment, the inner back plate 2b and outer back plate 2c of the rear side wall of the second bladder 2 extend vertically, and a circular mounting port 26 is provided in the center of the outer back plate 2c for the impeller 41 of the hot air blower 4 to extend into the hot air chamber 205. The plates of the outer back plate 2c around the mounting port 26 are inclined inward from front to back along the circumferential direction. When the second bladder 2 is inserted into the first bladder 1, the edge of the mounting port 26 abuts against the inner back surface of the first bladder 1 along the circumferential direction. In this way, the heated hot air can flow better into the corresponding air guide channels through each air guide under the guidance of the inner surface of the outer back plate 2c.

[0047] Preferably, the upper air outlet channel 201, lower air outlet channel 202, left air outlet channel 203, and right air outlet channel 204 are separated from each other. This avoids mutual interference of airflow in each air outlet channel, improves the uniformity of airflow from each air outlet channel, and thus benefits the uniformity of the temperature and airflow fields inside the second liner 2. To achieve the separation of each air outlet channel, in this embodiment, partitions 21 extending forward and backward are respectively provided in the inner cavities at the four corners of the second liner 2, and each partition 21 separates two adjacent air outlet channels. Preferably, the partitions 21 on both sides of each air outlet channel are inclined from the outside to the inside towards the air outlet channel. In this way, the surface energy of each partition 21 can guide the airflow, thereby allowing the airflow to be smoothly discharged from the corresponding second air outlet 24. More preferably, each of the partitions 21 is arranged along the diagonal direction of the second liner 2. On the one hand, it can better separate adjacent air outlet channels, and on the other hand, it can better guide the airflow, so that the airflow can be discharged more smoothly from the corresponding second air outlet 24.

[0048] In this embodiment, the first air outlet 23 is formed by arranging first air outlet holes 231, and each second air outlet 24 is formed by arranging second air outlet holes 241. The total opening area of ​​the first air outlet 23 is smaller than the total opening area of ​​each second air outlet 24. The first air outlet 23 is closer to the impeller 41 of the hot air blower 4, so the air pressure at the first air outlet 23 is higher than that at each second air outlet 24. By designing the total opening area of ​​the first air outlet 23 and the second air outlet 24 as described above, the air outlets on all sides of the second bladder 2 are uniform, which further benefits the uniformity of the temperature field and air field inside the second bladder 2. Specifically, the first air outlet holes 231 include both circular holes and elongated holes extending to the left and right. The second air outlet holes 241 are all elongated holes, including both left-right extensions and vertical extensions. Preferably, the total opening area of ​​each second air outlet 24 is equal, which makes the air outlets on the upper inner side, lower inner side, left inner side, and right inner side of the second bladder 2 more uniform. More preferably, the arrangement of the second air outlets 241 on each of the above-mentioned second air outlets 24 and their positions on the inner side plate 2a of the corresponding side wall of the second liner 2 are the same, so that the air outlets on the upper inner side, lower inner side, left inner side and right inner side of the second liner 2 are basically consistent.

[0049] Furthermore, each of the aforementioned second air outlets 24 also includes a third air outlet 242. Each third air outlet 242 is respectively disposed along the left-right direction at the front and rear ends of the inner side plate 2a of the corresponding sidewall. The front edge of each third air outlet 242 extends along its length toward the corresponding air outlet channel to form a guide wall 6. In the second air outlets 24 of the inner side plate 2a of each sidewall of the second liner 2, the airflow from the middle second air outlet 241 is generally greater than that from the front and rear ends (especially when the airflow velocity inside the air outlet channel is high). Thus, the airflow guided by the guide wall 6 reduces the difference in airflow between the third air outlets 242 at the front and rear ends and the middle one, promoting uniformity of the temperature and airflow fields along the horizontal direction inside the second liner 2. Preferably, the guide wall 6 of each of the aforementioned third air outlets 242 is inclined backward to further enhance the airflow guiding effect. Furthermore, the inner side plates 2a of each side wall of the second bladder 2 are provided with at least two rows of third air outlet holes 242 (three rows in this embodiment) at intervals from front to back. The height of the guide wall 6 of each row of third air outlet holes 242 decreases from front to back. Since the airflow velocity at the rear end is greater than that at the front end, the height of the guide wall 6 of each row of third air outlet holes 242 at the front end is lower than that of the guide wall 6 of the corresponding row of third air outlet holes 242 at the rear end. This allows the airflow to be better blown out from the front end and rear end of the inner side plates 2a of each side wall.

[0050] Furthermore, in this embodiment, a third air outlet 25 is provided at each of the four corners of the front edge of the second inner chamber 2, and each third air outlet 25 is connected to a corresponding air outlet channel. Existing steam ovens suffer from poor cooking performance near the door. By providing the third air outlet 25, the airflow near the door corners is enhanced, and with the rebound effect of the inner surface of the door, this problem is effectively solved. Preferably, the front edge of the second inner chamber 2 extends vertically, so that the airflow from each third air outlet 25 can better cooperate with the inner surface of the door, thus improving the cooking effect near the door corners. Specifically, in this embodiment, the third air outlet 25 is provided on both sides of each partition 21, so that the partition 21 can guide the airflow to the corresponding third air outlet 25. Furthermore, each third air outlet 25 is composed of two circular fourth air outlet holes 251.

[0051] Furthermore, the rear ends of each side wall of the second liner 2 are open, and when the second liner 2 is inserted into the first liner 1, the edges of each opening abut against the inner back surface of the first liner 1 circumferentially. This facilitates the manufacturing of the second liner 2 and allows water and cleaning agents to enter the interior of each side wall of the second liner 2, thus facilitating cleaning. Further, a window 26 is provided on the outer bottom plate of the bottom wall of the second liner 2, allowing heat and steam generated by the heating plate 7 on the bottom wall of the first liner 1 to smoothly enter the lower air outlet channel 202 and then into the interior of the second liner 2.

Claims

1. A cooking inner pot assembly, characterized in that, The device includes a first liner (1) fixedly mounted and open at the front, and a second liner (2) matching the size of the inner cavity of the first liner (1) and also open at the front. The second liner (2) is movably inserted into the inner cavity of the first liner (1) in the front-back direction. A hot air blower (4) is mounted on the back of the first liner (1), and a hot air chamber (205) is provided on the back of the second liner (2). The back of the second liner (2) is open so that the impeller (41) of the hot air blower (4) is located in the hot air chamber (205). A back heating pipe (5) is provided around the outer periphery of the impeller (41). The hot air chamber (205) has an air inlet (22) and a first air outlet (23) communicating with the inner cavity of the second liner (2). The air inlet (22) is directly opposite the impeller (41), and the first air outlet (23) surrounds the air inlet (22). Each sidewall of the second bladder (2) is hollow. The inner cavity of the rear sidewall of the second bladder (2) forms the hot air chamber (205) mentioned above, while the inner cavities of the other sidewalls respectively form the corresponding air outlet channels mentioned above. The air inlet (22) and the first air outlet (23) are respectively opened on the inner back plate (2b) of the rear sidewall of the second bladder (2), while each second air outlet (24) is respectively opened on the inner side plate (2a) of the corresponding sidewall of the second bladder (2). The second chamber (2) has a first air guide (2051) and a second air guide (2052) at the top and bottom of its rear sidewall, respectively, along its length. The left and right ends have a third air guide (2053) and a fourth air guide (2054), respectively, along their lengths. The first air guide (2051) connects the hot air chamber (205) to the upper air outlet channel (201), and the second air guide (2052) connects to... The hot air chamber (205) and the lower air outlet channel (202) are connected by a third air guide (2053) and a left air outlet channel (203), and a fourth air outlet is connected by a right air outlet channel (204). Furthermore, the opening areas of the first air guide (2051) and the second air guide (2052) are larger than those of the third air guide (2053) and the fourth air guide (2054).

2. The cooking inner pot assembly as described in claim 1, characterized in that, At least one pair of opposite sidewalls of the second bladder (2) are provided with air outlet channels, each air outlet channel is connected to the hot air chamber (205) and each has a second air outlet (24) connected to the inner cavity of the second bladder (2).

3. The cooking inner pot assembly as described in claim 2, characterized in that, The second bladder (2) has the above-mentioned air outlet channels on its upper side wall, lower side wall, left side wall and right side wall, which are respectively upper air outlet channel (201), lower air outlet channel (202), left air outlet channel (203) and right air outlet channel (204).

4. The cooking inner pot assembly as described in claim 1, characterized in that, The inner back plate (2b) and outer back plate (2c) of the rear side wall of the second bladder (2) extend vertically, and a circular mounting port (26) is provided in the center of the outer back plate (2c) for the impeller (41) of the hot air blower (4) to extend into the hot air chamber (205). The plate of the outer back plate (2c) around the mounting port (26) is inclined from front to back in the circumferential direction. When the second bladder (2) is inserted into the first bladder (1), the edge of the mounting port (26) abuts against the inner back side of the first bladder (1) in the circumferential direction.

5. The cooking inner pot assembly as described in claim 1 or 3, characterized in that, The upper air outlet channel (201), lower air outlet channel (202), left air outlet channel (203), and right air outlet channel (204) are separated from each other.

6. The cooking inner pot assembly as described in claim 5, characterized in that, The inner cavity at the four corners of the second bladder (2) is provided with partitions (21) extending forward and backward, and each partition (21) separates two adjacent air outlet channels from each other.

7. The cooking inner pot assembly as described in claim 6, characterized in that, The partitions (21) on both sides of each air outlet channel are inclined from the outside to the inside toward the air outlet channel.

8. The cooking inner pot assembly as described in claim 7, characterized in that, Each of the partitions (21) is arranged along the diagonal direction of the second bladder (2).

9. The cooking inner pot assembly as described in any one of claims 1 to 3, characterized in that, The first air outlet (23) is formed by arranging the first air outlet holes (231), and each second air outlet (24) is formed by arranging the second air outlet holes (241). The total opening area of ​​the first air outlet (23) is smaller than the total opening area of ​​each second air outlet (24).

10. The cooking inner pot assembly as claimed in claim 9, characterized in that, The total opening area of ​​each of the second air outlets (24) is equal.

11. The cooking inner pot assembly as claimed in claim 10, characterized in that, The arrangement of the second air outlets (241) on each of the second air outlets (24) and their positions on the inner side plate (2a) of the corresponding side wall of the second bladder (2) are the same.

12. The cooking inner pot assembly as claimed in claim 9, characterized in that, Each of the second air outlets (24) also includes a third air outlet (242). Each third air outlet (242) is disposed at the front end and rear end of the inner side plate (2a) of the corresponding side wall in the left-right direction. The front edge of each third air outlet (242) extends along the length direction toward the corresponding air outlet channel to form an air guide wall (6).

13. The cooking inner pot assembly as claimed in claim 12, characterized in that, The air guide wall (6) of each of the third air outlets (242) is inclined backward.

14. The cooking inner pot assembly as claimed in claim 13, characterized in that, The inner side plate (2a) of each side wall of the second bladder (2) is provided with at least two rows of third air outlets (242) at a time interval between the front end and the rear end. The height of the guide wall (6) of each row of third air outlets (242) decreases from front to back. Furthermore, the height of the guide wall (6) of each row of third air outlets (242) at the front end is lower than the guide wall (6) of the corresponding row of third air outlets (242) at the rear end.

15. The cooking inner pot assembly as described in any one of claims 1 to 3, characterized in that, The second bladder (2) has a third air outlet (25) at each of the four corners of the front edge, and each third air outlet (25) is connected to the corresponding air outlet channel.

16. The cooking inner pot assembly as claimed in claim 15, characterized in that, The front edge of the second gallbladder (2) extends vertically.

17. The cooking inner pot assembly as claimed in claim 1, characterized in that, The rear end of each side wall of the second bladder (2) is open, and when the second bladder (2) is inserted into the first bladder (1), the edge of each opening abuts against the inner back surface of the first bladder (1) in the circumferential direction.

18. The cooking inner pot assembly as claimed in claim 1, characterized in that, A window (26) is provided on the outer bottom plate of the bottom wall of the second bladder (2).

19. The cooking inner pot assembly as described in any one of claims 1 to 3, characterized in that, A top heating tube (3) is installed on the top wall of the first inner tube (1), and a heating plate (7) is installed on the bottom wall.

20. A steam oven, characterized in that, It has a cooking inner pot assembly as described in any one of claims 1 to 19.

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