A cooking inner pot structure and a steam-baking cooking device

Abstract

The present invention relates to a cooking liner structure and a steaming and baking cooking device, comprising an liner with an opening on the front side and a hot air blower arranged on the back side of the liner, the rear side wall of the liner is a hollow structure to form a hot air chamber, the impeller of the hot air blower is located in the hot air chamber, the left and right side walls of the liner are respectively hollow structures to form a side air outlet duct with an opening at the rear end, an air inlet facing the front and rear of the impeller and a rear air outlet arranged beside the air inlet are opened on the inner side plate of the rear side wall of the liner, and side air outlets are opened at the left and right ends of the rear side wall, and the rear ports of each side air outlet duct are respectively connected to the side air outlets on the corresponding sides, and side air outlets are arranged on the inner side plates of the left and right side walls of the liner, and spoiler components are respectively arranged at the front ends of each side air outlet duct. Compared with the prior art, the present invention solves the problem of poor cooking effect near the door (i.e., near the opening of the liner) caused by the uneven temperature field and flow field in the front and rear directions of the liner in the prior art.

Description

Technical Field

[0001] The invention relates to the field of cooking equipment, and in particular to a cooking liner structure and steaming and baking cooking equipment. Background Art

[0002] Steaming and baking cooking equipment (for example, a steam oven, etc.) is a cooking equipment that has both steaming and baking functions, for example, the Chinese utility model patent with patent number ZL202023249697.6 (authorization announcement number CN214760674U), the Chinese utility model patent with patent number ZL202121480605.7 (authorization announcement number CN216293801U), etc.

[0003] When the baking function is in progress, the hot air blower works, and the airflow in the inner pot of the steam-bake cooking device enters the hot air chamber under the negative pressure formed by the hot air blower. After the airflow is heated in the hot air chamber, it flows back to the inner pot through the air outlet on the hot air baffle, thereby realizing the hot air circulation inside the inner pot. For example, the Chinese utility model patent with patent number ZL202221360385.9 (authorization announcement number CN217659238U), the Chinese utility model patent with patent number ZL202123188610.3 (authorization announcement number CN216776756U), etc. However, the inner pot of the existing steam-bake cooking device generally only discharges hot air from one side of the rear part of the inner pot. When the hot air flows from the back to the front to the door, the kinetic energy and heat energy loss are large, resulting in uneven distribution of the temperature field and flow field inside the inner pot, especially along the front and back directions, thereby affecting the cooking effect of the food. Summary of the invention

[0004] The first technical problem to be solved by the present invention is to provide a cooking pot structure with good cooking effect in view of the prior art.

[0005] The second technical problem to be solved by the present invention is to provide a cooking pot structure with high cooking efficiency in view of the prior art.

[0006] The third technical problem to be solved by the present invention is to provide a cooking device with the above-mentioned cooking liner structure in view of the prior art.

[0007] The technical solution adopted by the present invention to solve at least one of the above technical problems is: a cooking liner structure, comprising an liner with an opening on the front side and a hot air blower arranged on the back side of the liner, characterized in that the rear side wall of the liner is a hollow structure to form a hot air chamber, the impeller of the hot air blower is located in the hot air chamber, and a first heating pipe is arranged on the outer periphery of the impeller, and at the same time, the left and right side walls of the liner are respectively hollow structures to form a side air outlet duct with an opening at the rear end,

[0008] In addition, an air inlet directly facing the front and rear of the impeller and a rear air outlet arranged beside the air inlet are provided on the inner side plate of the rear side wall of the inner tank, and side air outlets are provided at the left and right ends of the rear side wall respectively, and the rear port of each side air outlet duct is respectively connected to the side air outlet on the corresponding side, and side air outlets are respectively arranged on the inner side plates of the left and right side walls of the inner tank, and a spoiler component is respectively provided at the front end of each side air outlet duct.

[0009] Furthermore, each of the spoiler components includes spoiler wires vertically arranged in the corresponding side air outlet duct. The vertically arranged spoiler wires can disturb part of the airflow flowing to the front end of each side air outlet duct to generate turbulent flow.

[0010] Furthermore, in the working state, the spoiler wires in each side outlet duct can be shaken along the length direction driven by the airflow or the driving device. In this way, the spoiler wires can better disturb the airflow flowing to the front end of each side outlet duct through the shaking of the spoiler wires, further increasing the flow rate of the gas flowing back through the air outlet holes on each side.

[0011] Furthermore, each of the spoiler wires is wavy in shape. The wavy design is conducive to further improving the spoiler effect of the spoiler wire.

[0012] Furthermore, the spoiler wires in each side air outlet duct are heating wires. In this way, the spoiler wires not only have a spoiler effect, but also a heating effect. When the airflow flows out of the hot air chamber and flows along the side air outlet duct, it loses heat energy in addition to kinetic energy. The spoiler wires are used to reheat the airflow in the side air outlet duct, which compensates for the heat energy loss and increases the temperature of the airflow returning to the inner pot. In addition, after the airflow is reheated, the molecular motion intensifies and the airflow velocity accelerates. The combination of spoiler speed-up can better increase the velocity of the airflow returning to the inner pot, and better solve the problem of poor cooking effect near the door.

[0013] Furthermore, the distance between each spoiler and the front end of the side air outlet duct where it is located is less than or equal to 1 / 4 of the front-to-back length of the side air outlet duct, so that the flow rate of the airflow at each side air outlet near the door can be better adjusted.

[0014] Furthermore, the ratio of the length of each spoiler to the vertical height of the side outlet air duct where it is located is 0.7-0.9, so that it can act on the front end of the entire side outlet air duct from the height direction to ensure the uniformity of the temperature field and flow field in the height direction near the door of the inner tank.

[0015] Furthermore, there are at least two spoiler wires in each of the side outlet air ducts, and the ratio of the spacing between each adjacent spoiler wire to the left-right width of the side outlet air duct is 1:(N+1), where N is the number of spoiler wires in each side outlet air duct. By providing multiple spoiler wires, the spoiler effect on the airflow at the front end of the side outlet air duct can be improved, and the above ratio design can make each spoiler wire evenly act on the front end of the entire side outlet air duct from the left and right directions.

[0016] Furthermore, each of the spoiler wires is installed on the front end surface of the corresponding side air outlet duct through the installation assembly, so that each spoiler wire can be vertically arranged in the corresponding side air outlet duct.

[0017] Furthermore, the two ends of each spoiler wire are respectively provided with the above-mentioned mounting components, and each mounting component includes a mounting column fixed on the front end surface of the corresponding side air outlet duct along the front-back direction, the free end of the mounting column is convexly provided with a limiting ring step along the circumferential direction and the end is provided with an external thread, and the two ends of each spoiler wire are respectively provided with a mounting gasket extending along its length direction, and each mounting gasket is respectively sleeved on the free end of the corresponding mounting column through the center hole thereon, and is clamped between the corresponding limiting ring step and the nut through a nut threadedly connected to the external thread of the free end. In this way, each spoiler wire can be stably installed in the corresponding side air outlet duct.

[0018] Furthermore, the top wall of the inner tank is a hollow structure to form an installation channel with an opening at the rear end, and the installation channel is separated from the corresponding side air outlet duct by upper partition walls extending front and rear, and the front end of each upper partition wall is respectively provided with threading holes, and a wire clamping block extending front and rear is fixed on the upper surface of each upper partition wall, and each wire clamping block is respectively provided with a wire clamping groove along its length direction. The provision of the threading holes and the wire clamping blocks facilitates the wiring operation of the spoiler wire.

[0019] Furthermore, a first heating tube is horizontally arranged in the installation channel, so that the first heating tube can be stably installed.

[0020] Furthermore, an upper air outlet is provided on the upper end of the rear side wall of the inner pot, the upper air outlet is connected to the rear port of the installation channel, and an upper air outlet hole is arranged on the inner side plate of the top wall of the inner pot. In this way, the hot air in the hot air chamber can flow back into the inner pot from top to bottom through the upper air outlet hole of the installation channel, thereby improving the coloring effect of the upper surface of the food.

[0021] Furthermore, the bottom wall of the inner pot is a hollow structure to form a lower air outlet duct with an opening at the rear end, a lower air outlet is provided on the lower end of the rear side wall of the inner pot, the lower air outlet is connected to the rear end of the lower air outlet duct, and lower air outlet holes are arranged on the inner side plate at the bottom of the inner pot. In this way, the hot air in the hot air chamber can flow back into the inner pot from bottom to top, solving the problem of uneven heating of food from top to bottom.

[0022] Furthermore, each of the spoiler assemblies further comprises a spoiler plate horizontally arranged at the front end of each of the side air outlet ducts in the left-right direction. Thus, the airflow flowing to the front end of the side air outlet duct is separated into two air masses in the upper and lower directions by the spoiler plate, thereby reducing the flow velocity of the airflow flowing forward, so that more hot air can flow back to the inner tank through the side air outlet holes at the front end.

[0023] Furthermore, each spoiler is located in the middle of the corresponding side air outlet duct along the up-down direction, which is beneficial to improving the uniformity of the temperature field and flow field near the door inside the liner along the up-down direction.

[0024] Furthermore, each spoiler is wavy in shape, which improves the spoiler's spoiling effect on the airflow, so that the air masses separated by the spoiler can flow back to the inner tank at a faster flow rate.

[0025] Furthermore, each of the spoilers is fixed on the front end surface of the corresponding side air outlet duct and is located in front of the corresponding spoiler wire. On the one hand, each spoiler can be stably arranged in the corresponding side air outlet duct, and on the other hand, each spoiler cooperates with the front end surface where it is located to better separate the airflow at the front end of the corresponding side air outlet duct. Moreover, when the airflow in each side air outlet duct flows to its front end, it is first disturbed and heated by the spoiler wire to form a turbulent gas with a higher temperature and a faster flow rate, and then separated by the spoiler up and down to form a vortex-like airflow group.

[0026] Furthermore, each of the spoiler components further comprises spoiler ribs, each of which is convexly arranged at the front end of the outer plate of the left and right side walls of the inner liner. In this way, when the airflow flows to the front end of each side air outlet duct, the airflow is affected by the spoiler ribs, and the velocity of the airflow in the left and right directions increases, thereby allowing the airflow to flow into the side air inlet holes on the inner plate with a larger flow.

[0027] Furthermore, the above-mentioned spoiler ribs are respectively arranged on the upper and lower sides of the outer plates of the left and right side walls of the inner container, and each spoiler rib extends in the front-to-back direction, so as to fully act on the airflow flowing from the back to the front.

[0028] Furthermore, each of the spoiler ribs in each of the side air outlet ducts is provided with at least three spoiler ribs spaced apart from each other, wherein the distance between the spoiler rib in the middle and the front end surface of the side air outlet duct where it is located is smaller than the spoiler ribs on both sides, and the front end of each spoiler rib is respectively opposite to the spoiler wire and spoiler plate in the side air outlet duct where it is located. In this way, the spoiler ribs, spoiler wires and spoiler plates in each side air outlet duct cooperate to achieve regular disturbance of the airflow flowing to the front end, thereby increasing the flow rate of the airflow returning from each side air outlet.

[0029] The technical solution adopted to further solve the third technical problem mentioned above is: a steaming and baking cooking device, characterized by having the cooking liner structure as described above.

[0030] Compared with the prior art, the advantages of the present invention are: the hot air chamber in the present invention is formed by the inner cavity of the rear side wall of the inner pot which is a hollow structure, and the structure is simple and strong. At the same time, when the impeller of the hot air blower rotates, most of the air volume is blown out from the left and right sides of the impeller. Therefore, on the basis of the hot air in the hot air chamber being discharged through the rear of each rear air outlet hole, the side air outlet ducts are respectively arranged on the left and right sides of the inner pot, and the side air outlet is realized through each side air outlet hole of each side air outlet duct, thereby avoiding the loss of the air outlet kinetic energy of the hot air blower, and improving the uniformity of the temperature field and flow field inside the inner pot, thereby improving the cooking effect.

[0031] Furthermore, by arranging spoiler components at the front end of each side air outlet duct, the spoiler components disturb the airflow flowing to the front end of each side air outlet duct, so that the airflow changes from a smooth flow from back to front to a turbulent flow, thereby forming an airflow group similar to a vortex at the front end of each side air outlet duct. On the one hand, it avoids the airflow flowing from back to front in each side air outlet duct from colliding with the front end surface of the corresponding side air outlet duct to cause kinetic energy loss. On the other hand, it has a certain lateral acceleration effect on the airflow, so that the airflow can flow back into the inner pot through the air outlet holes on each side at a higher speed, thereby increasing the speed of hot air circulation inside the inner pot, thereby improving cooking efficiency, and solving the problem of poor cooking effect near the door (i.e., close to the opening of the inner pot) caused by the uneven temperature field and flow field in the front and rear directions inside the inner pot in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the structure of the cooking liner in Example 1 of the present invention;

[0033] Figure 2 for Figure 1 A schematic diagram of the structure in another direction;

[0034] Figure 3 for Figure 2 Cross-sectional view along direction BB;

[0035] Figure 4 for Figure 2 Cross-sectional view along AA direction;

[0036] Figure 5 This is a structural exploded view of the cooking pot structure in Example 1 of the present invention;

[0037] Figure 6 This is a schematic diagram of the structure of the inner container of Example 1 of the present invention;

[0038] Figure 7 for Figure 6A schematic diagram of the structure in another direction;

[0039] Figure 8 for Figure 6 A schematic diagram of the structure in another direction;

[0040] Fig. 9 for Figure 7 Cross-sectional view along EE direction;

[0041] Fig.10 for Figure 6 Cross-sectional view along CC direction;

[0042] Fig.11 for Figure 7 Cross-sectional view along DD direction;

[0043] Fig.12 This is a schematic diagram of the structure of the cooking liner in Example 2 of the present invention;

[0044] Fig.13 This is a schematic diagram of the structure of the inner container in Example 2 of the present invention;

[0045] Fig.14 for Fig.13 A schematic diagram of the structure in another direction;

[0046] Fig.15 for Fig.13 Cross-sectional view along the GG direction;

[0047] Fig.16 for Fig.14 Cross-sectional view along the HH direction;

[0048] Fig.17 for Fig.12 Cross-sectional view along the FF direction. DETAILED DESCRIPTION

[0049] The present invention is further described in detail below with reference to the accompanying drawings.

[0050] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention 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. Since the embodiments disclosed in the present invention can be set in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features.

[0051] Embodiment 1:

[0052] like Figures 1 to 11 As shown, a steaming and baking cooking device includes a cooking inner pot structure, which includes an inner pot 2 with an opening at the front side and a hot air blower 3 arranged at the back side of the inner pot 2. Further, the rear side wall of the inner pot 2 is a hollow structure to form a hot air chamber 201, and the impeller 31 of the hot air blower 3 is located in the hot air chamber 201, and a first heating pipe 81 is arranged around the outer periphery of the impeller 31. At the same time, the left and right side walls of the inner pot 2 are respectively a hollow structure to form a side air outlet duct 202 with an opening at the rear end.

[0053] The rear side wall, left side wall and right side wall of the inner liner 2 respectively include an inner side plate located on the inner side and an outer side plate located on the outer side, and the inner side plate of the rear side wall of the inner liner 2 is respectively provided with an air inlet 21 facing the front and rear of the impeller 31 and a rear air outlet 22 arranged beside the air inlet 21, and the left and right ends of the rear side wall are respectively provided with side air outlets 2011. The rear port of each side air outlet duct 202 is respectively connected to the side air outlet 2011 on the corresponding side, and the inner side plates of the left and right side walls of the inner liner 2 are respectively provided with side air outlet holes 23, and the front end of each side air outlet duct 202 is respectively provided with a spoiler assembly. Specifically, in this embodiment, it also includes an outer shell 1 with an opening on the front side and matching the shape of the inner liner 2. The inner liner 2 is embedded in the outer shell 1, and the motor 32 of the hot air blower 3 is installed on the back of the outer shell 1. An installation opening 26 is provided on the outer plate of the rear side wall of the inner liner 2. The output shaft 321 of the motor 32 penetrates into the outer shell 1 and is linked with the impeller 31 of the hot air blower 3 through the installation opening 26, thereby driving the impeller 31.

[0054] The hot air chamber 201 in the present invention is formed by the inner cavity of the rear side wall of the inner pot 2 which is a hollow structure, and has a simple and strong structure. At the same time, when the impeller 31 of the hot air blower 3 rotates, most of the air volume is blown out from the left and right sides thereof. Therefore, on the basis of the hot air in the hot air chamber 201 being discharged from the rear of each rear air outlet 22, the side air outlet ducts 202 are respectively arranged on the left and right sides of the inner pot 2, and the side air outlet is realized through each side air outlet 23 of each side air outlet duct 202, thereby avoiding the loss of the air outlet kinetic energy of the hot air blower 3, and improving the uniformity of the temperature field and flow field inside the inner pot 2, thereby improving the cooking effect.

[0055] Furthermore, by respectively arranging a spoiler component at the front end of each side air outlet duct 202, the airflow flowing to the front end of each side air outlet duct 202 is disturbed by the spoiler component, so that the airflow changes from a smooth flow from back to front to a turbulent flow, thereby forming an airflow group similar to a vortex at the front end of each side air outlet duct 202. On the one hand, it avoids the airflow flowing from back to front in each side air outlet duct 202 from colliding with the front end surface of the corresponding side air outlet duct 202 to cause kinetic energy loss. On the other hand, it has a certain lateral acceleration effect on the airflow, so that the airflow can flow back into the inner pot 2 through the air outlet holes 23 on each side at a higher speed, thereby increasing the speed of hot air circulation inside the inner pot 2, thereby improving the cooking efficiency, and solving the problem of poor cooking effect near the door (i.e., close to the opening of the inner pot 2) caused by the uneven temperature field and flow field in the front and rear directions inside the inner pot 2 in the prior art.

[0056] Further, each of the above-mentioned spoiler components includes a spoiler wire 4 vertically arranged in the corresponding side air outlet duct 202. The spoiler wire 4 arranged vertically can disturb part of the airflow flowing to the front end of each side air outlet duct 202 and cause turbulent flow. Preferably, in the working state, the spoiler wire 4 in each side air outlet duct 202 can be driven by the airflow or driven by the driving device and shake along the length direction. In this way, the spoiler wire 4 can better disturb the airflow flowing to the front end of each side air outlet duct 202 through the shaking of the spoiler wire 4, and further increase the flow rate of the gas flowing back through each side air outlet hole 23. Among them, the above-mentioned driving device can select a device that can realize the shaking of metal wire in the prior art, such as a vibrator, etc. In this embodiment, preferably, each spoiler wire 4 can realize autonomous shaking through the airflow flowing from back to front in the side air outlet duct 202 where it is located, so that on the one hand, there is no need to set up a driving device separately, and on the other hand, it can avoid uneven airflow backflow speed at the front and rear ends of the left and right sides of the inner liner 2. In addition, preferably, in this embodiment, each of the spoiler wires 4 is wavy in shape. The wavy design is conducive to further improving the spoiler effect of the spoiler wire 4.

[0057] Furthermore, in this embodiment, the spoiler wires 4 in each side air outlet duct 202 are all heating wires. In this way, the spoiler wires 4 not only have a spoiler function, but also a heating function. In the process of the airflow flowing out of the hot air chamber 201 and flowing along the side air outlet duct 202, in addition to the kinetic energy loss, it also has a heat energy loss. The spoiler wires 4 are used to perform secondary heating on the airflow in the side air outlet duct 202, which compensates for the heat energy loss and increases the temperature of the airflow returning to the inner pot 2. In addition, after the airflow is secondary heated, the molecular motion intensifies and the airflow velocity accelerates. The coordination with the spoiler speed-up can better increase the velocity of the airflow returning to the inner pot 2, and better solve the problem of poor cooking effect near the door.

[0058] In addition, preferably, the spacing between each of the above-mentioned spoiler wires 4 and the front end of the side air outlet duct 202 where it is located is less than or equal to 1 / 4 of the front-to-back length of the side air outlet duct 202, so that the flow velocity of the airflow at each side air outlet hole 23 near the door can be better adjusted. Further preferably, the length of each of the above-mentioned spoiler wires 4 and the vertical height ratio of the side air outlet duct 202 where it is located are 0.7 to 0.9. Thus, it can act on the front end of the entire side air outlet duct 202 from the height direction to ensure the uniformity of the temperature field and flow field in the height direction near the door of the liner 2. Further preferably, there are at least two spoiler wires 4 in each of the above-mentioned side air outlet ducts 202, and the ratio of the spacing between each adjacent spoiler wire 4 to the left and right width of the side air outlet duct 202 where it is located is 1: (N + 1), where N is the number of spoiler wires 4 in each side air outlet duct 202. By providing a plurality of spoiler wires 4, the spoiler effect on the airflow at the front end of the side air outlet duct 202 can be improved, and by the above ratio design, each spoiler wire 4 can evenly act on the front end of the entire side air outlet duct 202 from the left and right directions. In this embodiment, there are two spoiler wires 4 in each of the above-mentioned side air outlet ducts 202, and the ratio of the spacing between each adjacent spoiler wire 4 to the left and right width of the side air outlet duct 202 is 1:3.

[0059] Further, in the present embodiment, each of the above-mentioned spoiler wires 4 is respectively installed on the front end surface of the corresponding side air outlet duct 202 through the installation assembly 7, so that each spoiler wire 4 can be vertically arranged in the corresponding side air outlet duct 202. Specifically, the above-mentioned installation assembly 7 is respectively provided at both ends of each of the above-mentioned spoiler wires 4, and each installation assembly 7 includes a mounting column 71 fixed on the front end surface of the corresponding side air outlet duct 202 along the front-back direction, and a limiting ring step 711 is convexly provided on the free end of the mounting column 71 along the circumferential direction and an external thread is provided at the end, and each of the two ends of each spoiler wire 4 has a mounting gasket 41 extending along its length direction, and each mounting gasket 41 is respectively sleeved on the free end of the corresponding mounting column 71 through the center hole thereon, and is clamped between the corresponding limiting ring step 711 and the nut 72 through the nut 72 threadedly connected to the external thread of the free end. Thereby, each spoiler wire 4 can be stably installed in the corresponding side air outlet duct 202.

[0060] Further, in this embodiment, the top wall of the inner liner 2 is a hollow structure to form a mounting channel 203 with a rear end opening, and the mounting channel 203 is separated from the corresponding side air outlet duct 202 by upper partition walls 91 extending forward and backward, and the front end of each upper partition wall 91 is respectively penetrated with threading holes 911, and the upper surface of each upper partition wall 91 is respectively fixed with a wire clamping block 10 extending forward and backward, and each wire clamping block 10 is respectively penetrated with a wire clamping groove 101 along its length direction. The arrangement of the threading hole 911 and the wire clamping block 10 facilitates the wiring operation of the spoiler wire 4. In addition, a second heating tube 82 is installed at the upper end of the back plate of the shell 1, and the second heating tube 82 is horizontally accommodated in the mounting channel 203, so that the second heating tube 82 can be stably arranged on the upper part of the inner liner 2. Preferably, the top wall of the inner pot 2 includes an outer plate located on the outside and an inner plate located on the inside, an upper air outlet 2012 is provided on the upper end of the rear side wall of the inner pot 2, the upper air outlet 2012 is communicated with the rear port of the installation channel 203, and upper air outlet holes 24 are arranged on the inner plate of the top wall of the inner pot 2. In this way, the hot air in the hot air chamber 201 can flow back to the inner pot 2 from top to bottom through the upper air outlet holes 24 of the installation channel 203, and cooperate with the reheating effect of the first heating tube 81 to effectively improve the coloring effect of the upper surface of the food.

[0061] Further, the bottom wall of the inner pot 2 is a hollow structure to form a lower air outlet duct 204 with an opening at the rear end, and the bottom wall includes an outer plate located on the outside and an inner plate located on the inside, and a lower air outlet 2013 is provided on the lower end of the rear side wall of the inner pot 2, and the lower air outlet 2013 is connected to the rear port of the lower air outlet duct 204, and a lower air outlet hole 25 is arranged on the inner plate at the bottom of the inner pot 2. In this way, the hot air in the hot air chamber 201 can flow back to the inner pot 2 from bottom to top, solving the problem of uneven heating of food from top to bottom. Preferably, a heating plate 83 is installed on the bottom wall of the shell 1, and a window 27 is provided on the outer plate of the bottom wall of the inner pot 2, through which the heating plate 83 can be completely exposed to the lower air outlet duct 204, so that the airflow flowing from the hot air chamber 201 into the lower air outlet duct 204 can be reheated by the heating plate 83, thereby improving the heating effect on the bottom of the food. In the present embodiment, the left and right sides of the lower air outlet duct 204 are respectively separated from the side air outlet ducts 102 on both sides by lower partition walls 92, and the angles between each upper partition wall 91 and each lower partition wall 92 and the horizontal plane are 45°, wherein each upper partition wall 91 is inclined outward from bottom to top, and each lower partition wall 92 is inclined outward from top to bottom.

[0062] Furthermore, the left and right inner sides of the inner pot 2 are respectively provided with a shelf structure for horizontally placing a cooking plate 11 (steaming plate, baking plate, etc.). In this embodiment, three shelf structures are arranged at intervals on each side of the inner pot 2, so that multi-layer cooking can be achieved. In addition, each shelf structure includes a shelf block 12 convexly arranged on the inner side of the inner pot 2 at intervals along the front-back direction. Generally, the cooking effect of the middle cooking layer is better, so the middle cooking layer of the inner pot 2 is provided with a fixed plate 13 that is an integral part of the inner pot 2, and food can be placed directly on the fixed plate 13, or a cooking plate 11 can be placed in the fixed plate for cooking.

[0063] Embodiment 2:

[0064] like Figures 12 to 17 As shown, different from Example 1, in this embodiment, each of the above-mentioned spoiler components also includes a spoiler 5 horizontally arranged at the front end of each of the above-mentioned side air outlet ducts 202 in the left and right directions. In this way, the airflow flowing to the front end of the side air outlet duct 202 is divided into two air masses up and down by the spoiler 5, which reduces the flow rate of the airflow flowing forward, so that more hot air can flow back to the inside of the liner 2 through the side air outlet holes 23 at the front end. Preferably, each of the above-mentioned spoilers 5 is respectively located in the middle of the corresponding side air outlet duct 202 in the up and down direction, which is conducive to improving the uniformity of the temperature field and flow field near the door in the up and down direction inside the liner 2. Further preferably, the shape of each of the above-mentioned spoilers 5 is wavy. The spoiler effect of the spoiler 5 on the airflow is improved, so that the air masses separated by the spoiler 5 can flow back to the inside of the liner 2 at a faster flow rate.

[0065] Furthermore, each of the above-mentioned spoilers 5 is respectively fixed on the front end surface of the corresponding side air outlet duct 202 and is respectively located in front of the corresponding spoiler wire 4. On the one hand, each spoiler 5 can be stably arranged in the corresponding side air outlet duct 202, and on the other hand, each spoiler 5 cooperates with the front end surface where it is located to better separate the airflow at the front end of the corresponding side air outlet duct 202. In addition, when the airflow in each side air outlet duct 202 flows to its front end, it is first disturbed and heated by the spoiler wire 4 to form a turbulent gas with a higher temperature and a faster flow rate, and then separated up and down by the spoiler 5 to form a vortex-like airflow group.

[0066] Furthermore, each of the above-mentioned spoiler components further includes spoiler ribs 6, and each spoiler rib 6 is respectively convexly arranged at the front end of the outer plate of the left and right side walls of the inner liner 2. In this way, when the airflow flows to the front end of each side air outlet duct 202, it is affected by the spoiler ribs 6, and the component velocity of the airflow in the left and right directions increases, thereby allowing the airflow to flow into the side air inlet holes on the inner plate with a larger flow. Preferably, the above-mentioned spoiler ribs 6 are respectively arranged on the upper and lower sides of the outer plate of the left and right side walls of the inner liner 2, and each spoiler rib 6 extends in the front-to-back direction, so that it can fully act on the airflow flowing from back to front.

[0067] Preferably, in this embodiment, the spoiler ribs 6 at each location in each of the above-mentioned side air outlet ducts 202 are respectively three arranged at intervals in the front and rear, wherein the distance between the spoiler rib 6 located in the middle and the front end surface of the side air outlet duct 202 where it is located is smaller than the spoiler ribs 6 on both sides, and the front end of each spoiler rib 6 is respectively opposite to the spoiler wire 4 and the spoiler plate 5 in the side air outlet duct 202 where it is located. In this way, the spoiler ribs 6, spoiler wires 4 and spoiler plates 5 in each side air outlet duct 202 cooperate to achieve regular disturbance of the airflow flowing to the front end, and increase the flow rate of the airflow returning from each side air outlet hole 23.

[0068] Specifically, the airflow from each side air outlet duct 202 to its front end is mainly divided into two parts: the first part flows from the back to the front along the inner surface of the outer plate of the side air outlet duct 202 or flows along the wall, and the second part flows along the cavity part of each side air outlet duct 202. Among them, the first part first contacts each spoiler rib 6 along the wall surface, and then the component velocity of this part of the airflow in the left and right directions increases and flows to the cavity part of the side air outlet duct 202, thereby mixing with the second part of the airflow to achieve the superposition of flow velocity. At the same time, the second part of the airflow first passes through the spoiler wires 4. Under the turbulence and heating effect of the spoiler wires 4, this part of the airflow is converted into turbulent gas with a higher temperature and a faster speed. It is then divided into vortex-like airflow groups by the spoiler plate 5. When the airflow group flows back, it is again affected by the spoiler ribs 6, so that its component velocity along the left and right directions is further increased. With the cooperation of the wall constraint effect of the front end surface of the side air outlet duct 202 where it is located, the airflow flows back to the inner liner 2 through the side air outlet holes 23 at the front end of the inner liner 2 at a higher flow rate.

Claims

1. A cooking liner structure, comprising an inner liner (2) with an opening at the front side and a hot air blower (3) arranged at the back side of the inner liner (2), characterized in that: The rear side wall of the inner pot (2) is a hollow structure to form a hot air chamber (201), the impeller (31) of the hot air blower (3) is located in the hot air chamber (201), and a first heating pipe (81) is provided around the outer periphery of the impeller (31), and at the same time, the left and right side walls of the inner pot (2) are respectively a hollow structure to form a side air outlet duct (202) with a rear end opening, Furthermore, an air inlet (21) directly facing the impeller (31) in front and behind is respectively provided on the inner side plate of the rear side wall of the inner liner (2), and a rear air outlet (22) arranged beside the air inlet (21), and side air outlets (2011) are respectively provided on the left and right ends of the rear side wall, and the rear port of each side air outlet duct (202) is respectively connected to the side air outlet (2011) on the corresponding side, and side air outlets (23) are respectively arranged on the inner side plates of the left and right side walls of the inner liner (2), and a spoiler assembly is respectively provided at the front end of each side air outlet duct (202); Each of the spoiler components comprises a spoiler wire (4) vertically arranged in the corresponding side air outlet duct (202); In the working state, the flow-disturbing wires (4) in the air outlet ducts (202) on each side can vibrate along their length direction driven by the airflow or the driving device; The shape of each of the spoiler wires (4) is wavy; The spoiler wires (4) in each side air outlet duct (202) are all heating wires.

2. The cooking pot structure according to claim 1, characterized in that: The distance between each of the spoiler filaments (4) and the front end of the side air outlet duct (202) where it is located is less than or equal to 1 / 4 of the front-to-back length of the side air outlet duct (202).

3. The cooking liner structure according to claim 1, characterized in that: The ratio of the length of each spoiler wire (4) to the vertical height of the side air outlet duct (202) where it is located is 0.7 to 0.

9.

4. The cooking liner structure according to claim 1, characterized in that: There are at least two spoiler filaments (4) in each of the side air outlet ducts (202), and the ratio of the spacing between adjacent spoiler filaments (4) to the left-right width of the side air outlet duct (202) is 1:(N+1), wherein N is the number of spoiler filaments (4) in each side air outlet duct (202).

5. The cooking pot structure according to claim 1, characterized in that: Each of the spoiler wires (4) is installed on the front end surface of the corresponding side air outlet duct (202) via a mounting assembly (7).

6. The cooking pot structure according to claim 5, characterized in that: The above-mentioned mounting components (7) are respectively arranged at both ends of each spoiler wire (4), and each mounting component (7) comprises a mounting column (71) fixed on the front end surface of the corresponding side air outlet duct (202) along the front-to-back direction, a limiting ring step (711) is convexly arranged on the free end of the mounting column (71) along the circumferential direction, and an external thread is arranged at the end, and each spoiler wire (4) has a mounting gasket (41) extending along its length direction at both ends, and each mounting gasket (41) is respectively sleeved on the free end of the corresponding mounting column (71) through the center hole thereon, and is clamped between the corresponding limiting ring step (711) and the nut (72) through a nut (72) threadedly connected to the external thread of the free end.

7. The cooking pot structure according to claim 1, characterized in that: The top wall of the inner liner (2) is a hollow structure to form a mounting channel (203) with an opening at the rear end. The mounting channel (203) is separated from the corresponding side air outlet duct (202) by upper partition walls (91) extending forward and backward, and the front end of each upper partition wall (91) is respectively provided with a threading hole (911) at the top and bottom, and a wire clamping block (10) extending forward and backward is fixed on the upper surface of each upper partition wall (91), and each wire clamping block (10) is respectively provided with a wire clamping groove (101) along its length direction.

8. The cooking pot structure according to claim 7, characterized in that: A second heating tube (82) is horizontally arranged in the installation channel (203).

9. The cooking pot structure according to claim 8, characterized in that: An upper air outlet (2012) is provided on the upper end of the rear side wall of the inner liner (2), and the upper air outlet (2012) is connected to the rear port of the above-mentioned installation channel (203), and an upper air outlet hole (24) is arranged on the inner side plate of the top wall of the inner liner (2).

10. The cooking pot structure according to claim 9, characterized in that: The bottom wall of the inner liner (2) is a hollow structure to form a lower air outlet duct (204) with an opening at the rear end; a lower air outlet (2013) is provided on the lower end of the rear side wall of the inner liner (2); the lower air outlet (2013) is connected to the rear port of the lower air outlet duct (204); and a lower air outlet hole (25) is arranged on the inner side plate at the bottom of the inner liner (2).

11. The cooking pot structure according to claim 1, characterized in that: Each of the spoiler assemblies further comprises a spoiler plate (5) horizontally arranged in the left-right direction at the front end of each of the side air outlet ducts (202).

12. The cooking pot structure according to claim 11, characterized in that: Each spoiler (5) is located at the middle of the corresponding side air outlet duct (202) in the up-down direction.

13. The cooking pot structure according to claim 11, characterized in that: The shape of each spoiler (5) is wavy.

14. The cooking pot structure according to claim 11, characterized in that: Each of the spoiler plates (5) is respectively fixed on the front end surface of the corresponding side air outlet duct (202) and is respectively located in front of the corresponding spoiler wire (4).

15. The cooking pot structure according to claim 14, characterized in that: Each of the spoiler components further comprises a spoiler convex rib (6), and each spoiler convex rib (6) is protrudingly arranged at the front end of the outer plate of the left and right side walls of the inner liner (2).

16. The cooking pot structure according to claim 15, characterized in that: The above-mentioned spoiler ribs (6) are respectively arranged on the upper and lower sides of the outer plates of the left and right side walls of the inner container (2), and each spoiler rib (6) extends in the front-rear direction.

17. The cooking pot structure according to claim 16, characterized in that: There are at least three spoiler ribs (6) in each of the side air outlet ducts (202) arranged at intervals from front to back, wherein the distance between the spoiler rib (6) in the middle and the front end surface of the side air outlet duct (202) where it is located is smaller than the spoiler ribs (6) on both sides, and the front end of each spoiler rib (6) is respectively opposite to the spoiler wire (4) and the spoiler plate (5) in the side air outlet duct (202) where it is located.

18. A steaming and baking cooking device, characterized in that: The invention has a cooking pot structure as claimed in any one of claims 1 to 17.

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