Cooking device

Abstract

The utility model provides a cooking device which comprises a first heating pipe and a second heating pipe. The first heating pipe comprises a first heating section and a second heating section, the two first heating sections are arranged at intervals; the two ends of the second heating section are connected with the ends, close to the opening of the cooking cavity, of the two first heating sections respectively, and the second heating section comprises a first sub-heating section and a second sub-heating section, in every two adjacent first heating pipes, one first heating pipe is wound on the outer side of the other first heating pipe, and the projections of every two adjacent first heating pipes on the first plane are arranged at intervals; the distance between central shafts of two adjacent first heating sections in the length direction of the box shell is a first distance L1; the distance between the central shafts of every two adjacent first sub-heating sections in the front-back direction of the box shell is a fourth distance L4 and a fourth distance L4lt; l1; the heating pipes on the front portion and the rear portion of the inner container can be relatively uniform, and the cooking effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to kitchen equipment field especially relates to a cooking device. BACKGROUND

[0002] The cooking device can include a cabinet and an inner container, and a cooking cavity can be formed in the inner container. A heating pipe can be provided in the cooking cavity to heat the air in the cooking cavity, thereby completing the cooking function of baking.

[0003] Most existing heating pipes are metal heating pipes, which mainly rely on heat conduction to heat food, resulting in low efficiency and large heat loss.

[0004] Currently, some heating pipes heat by radiation, but the arrangement of the heating pipes causes a large temperature difference in the temperature field in the inner container, resulting in poor cooking effect. Therefore, the present application proposes a cooking device. SUMMARY

[0005] The utility model aims at at least in a certain extent solves one of the technical problems among the related technical field.

[0006] To this end, according to the embodiment of the present disclosure, a cooking device is provided, comprising:

[0007] A cabinet;

[0008] An inner container arranged in the cabinet, a cooking cavity is formed in the inner container, and the front end of the cooking cavity is provided with a cooking cavity opening;

[0009] A cabinet door for opening or closing the cooking cavity opening;

[0010] A first heating pipe for heating the air in the inner container; the first heating pipe has at least two; the first heating pipe is an infrared heating pipe for heating the air in the inner container by heat radiation, and the first heating pipe comprises:

[0011] A first heating section arranged in the inner container, the central axis of the first heating section is parallel to the front-back direction of the cabinet; the first heating section has two sections, and the two first heating sections are arranged at intervals;

[0012] A second heating section arranged in the inner container, two ends of the second heating section are respectively connected to one end of two first heating sections close to the cooking cavity opening, and the second heating section comprises:

[0013] A first sub-heating section, the central axis of which is perpendicular to the central axis of the first heating section;

[0014] A first plane perpendicular to the height direction of the cabinet is defined as the first plane;

[0015] One of the first heating pipes is arranged outside the other first heating pipe, and projections of the two adjacent first heating pipes on the first plane are arranged at intervals;

[0016] The distance between the central axes of the two adjacent first heating sections in the length direction of the box shell is a first distance L1, and the first sub-heating sections of the two first heating pipes are arranged adjacent to each other, and the distance between the central axes of the two adjacent first sub-heating sections in the front-rear direction of the box shell is a fourth distance L4, L4 < L1.

[0017] The first heating pipe is an infrared heating pipe, so that the heat transfer efficiency of the first heating pipe is high, the first heating pipe includes a first heating section and a second heating section, the central axis of the first heating section is parallel to the front-rear direction of the box shell, the central axis of the first sub-heating section is parallel to the length direction of the box shell, L4 < L1, which can make the heating pipes in the front part and the rear part of the inner container relatively uniform, the temperature in the first heating section setting area and the second heating section setting area is relatively more uniform, and the cooking effect is improved.

[0018] According to the embodiments of the present disclosure, the distance between the first sub-heating section closest to the front end of the inner container and the front end of the inner container in the front-rear direction of the box shell is a fifth distance L5, L5 < L1, which can avoid the difference between the density of the first heating pipe at the front end of the inner container and the density of the first heating pipe in other areas of the inner container being too large, so that the temperature in each part of the inner container is more uniform, and the cooking effect is good.

[0019] According to the embodiments of the present disclosure, the fourth distance is equal to the fifth distance, so that the density of the first heating pipe at the front end of the inner container is similar, and the temperature in each part of the inner container is more uniform.

[0020] According to the embodiments of the present disclosure, the inner container includes a first side plate, and the first side plate is located at one end of the inner container in the length direction of the box shell.

[0021] The distance between the central axis of the first heating section and the first side plate in the length direction of the box shell is a second distance L2, L2 / L1≥1 / 4, L2 / L1≤1 / 2, which can make the first heating section near the first side plate and the first heating section in other areas relatively uniform, can make the temperature in each part of the inner container relatively uniform, avoid the temperature difference being too large, and improve the cooking effect.

[0022] According to the embodiments of the present disclosure, the inner container includes a second side plate, and the second side plate is located at the other end of the inner container in the length direction of the box shell.

[0023] The distance between the central axis of the first heating section and the second side plate in the length direction of the box shell is a third distance L3, L3 / L1 is greater than or equal to 1 / 4, and L3 / L1 is less than or equal to 1 / 2, so that the first heating section near the second side plate and the first heating section in other areas are relatively uniform, the temperature in the inner container is relatively uniform, the temperature difference is avoided from being too large, and the cooking effect is improved.

[0024] According to embodiments of the present disclosure, the cooking device comprises:

[0025] The heating disc is arranged in the inner container and comprises a first surface for placing cooking food materials;

[0026] The first heating pipe closest to the rear end of the inner container is an inner first heating pipe; the first heating section and the first sub-heating section of the inner first heating pipe are respectively an inner first heating section and an inner first sub-heating section, and the central axis of the inner first heating section is coplanar with the central axis of the inner first sub-heating section;

[0027] When the heating disc is in the first position, the minimum distance between the first surface and the inner first heating section in the height direction of the box shell is a first distance H1, H1 2 is greater than or equal to 4 / 7L1 2 , and H1 2 is less than or equal to L1 2 , so that the temperature at the first surface is relatively uniform, and when the food materials to be cooked are placed on the first surface corresponding to the first distance, the local temperature is avoided from being too high or too low, so that the cooking effect is good.

[0028] According to embodiments of the present disclosure, the second heating section comprises:

[0029] The second sub-heating section is connected at one end to one end of the first sub-heating section and connected at the other end to one end of one of the first heating sections of the first heating pipe close to the front end of the inner container, so as to facilitate the forming of the first heating pipe.

[0030] According to embodiments of the present disclosure, the second heating section comprises:

[0031] The third sub-heating section is connected at one end to the other end of the first sub-heating section and connected at the other end to one end of the other first heating section of the first heating pipe close to the front end of the inner container, so as to facilitate the forming of the first heating pipe.

[0032] According to embodiments of the present disclosure, when the heating disc is in the first position, the distance from the center of the first surface to the central axes of the two inner first heating sections is equal, and the distance between the center of the first surface and the central axis of the inner first sub-heating section in the front-rear direction of the box shell is L1, so as to better determine the first position.

[0033] According to an embodiment of the present disclosure, a cooking device is also provided, comprising:

[0034] A cabinet shell;

[0035] An inner container arranged in the cabinet shell;

[0036] A heating disc arranged in the inner container and comprising a first surface for placing cooking articles;

[0037] An inner first heating pipe for heating air in the inner container; the inner first heating pipe is an infrared heating pipe for heating air in the inner container by heat radiation, and the inner first heating pipe comprises:

[0038] An inner first heating section arranged in the inner container, a central axis of the inner first heating section being parallel to a front-rear direction of the cabinet shell; the inner first heating section has two sections, and the two sections of the inner first heating section are arranged in a spaced manner;

[0039] An inner second heating section arranged in the inner container, two ends of the inner second heating section being respectively connected to one end of two inner first heating sections close to an opening of a cooking cavity; the inner second heating section comprises:

[0040] An inner first sub-heating section, a central axis of which is perpendicular to a central axis of the inner first heating section;

[0041] A distance between the central axes of two adjacent inner first heating sections in a length direction of the cabinet shell is a first distance L1; the central axis of the inner first heating section and the central axis of the inner first sub-heating section are coplanar;

[0042] When the heating disc is located at the first position, a minimum distance between the first surface and the inner first heating section in a height direction of the cabinet shell is H1, H1 2 ≥ 4 / 7L1, and H1 2 ≤ L1;

[0043] The temperature at the first surface is relatively uniform, and when the cooking articles to be cooked are placed on the first surface corresponding to the first distance, the local temperature is prevented from being too high or too low, so that the cooking effect is good. BRIEF DESCRIPTION OF DRAWINGS

[0044] Figure 1 is a front view of a partial structure of a cooking device according to an embodiment of the present application;

[0045] Figure 2 is a side view of a partial structure of a cooking device according to an embodiment of the present application;

[0046] Figure 3 is a perspective view of a partial structure of a cooking device according to an embodiment of the present application;

[0047] Figure 4is a partial view of a cooking device according to an embodiment of the present application;

[0048] Figure 5 is another partial view of a cooking device according to an embodiment of the present application;

[0049] Figure 6 is a partial bottom view of a cooking device according to an embodiment of the present application;

[0050] Figure 7 is another partial bottom view of a cooking device according to an embodiment of the present application;

[0051] Figure 8 is a partial sectional view of a cooking device according to an embodiment of the present application;

[0052] Figure 9 is another partial sectional view of a cooking device according to an embodiment of the present application;

[0053] Figure 10 is another partial view of a cooking device according to an embodiment of the present application;

[0054] Figure 11 is a partial sectional view of a first heating pipe according to an embodiment of the present application;

[0055] Figure 12 is a partial view of a first heating pipe according to an embodiment of the present application;

[0056] Figure 13 is another partial view of a cooking device according to an embodiment of the present application;

[0057] Figure 14 is another partial view of a cooking device according to an embodiment of the present application;

[0058] Figure 15 is another partial view of a cooking device according to an embodiment of the present application;

[0059] Figure 16 is another partial view of a cooking device according to an embodiment of the present application;

[0060] Figure 17 is Figure 16 is an enlarged view of a partial structure at A in FIG. 15;

[0061] Figure 18 is another partial view of a cooking device according to an embodiment of the present application;

[0062] Figure 19 is a partial top view of a cooking device according to an embodiment of the present application;

[0063] Figure 20 is a structural view of a support mechanism according to an embodiment of the present application;

[0064] Figure 21 is a partial sectional view of a support mechanism according to an embodiment of the present application;

[0065] Figure 22 is another partial sectional view of a support mechanism according to an embodiment of the present application;

[0066] Figure 23 is another partial structural view of a cooking device from another perspective according to an embodiment of the present application;

[0067] Figure 24 is an exploded view of a support mechanism according to an embodiment of the present application;

[0068] Figure 25 is another partial sectional view of a support mechanism according to an embodiment of the present application;

[0069] Figure 26 is another partial sectional view of a support mechanism according to an embodiment of the present application.

[0070] In the above figures: cooking device 100; box shell 1; inner container 2; cooking cavity 21; cooking cavity opening 211; first side plate 22; second side plate 23; inner container top plate 24; first overpass plate 251; second overpass plate 252; box door 3; first heating pipe 4; heating pipe body 401; pipe body cavity 4011; heating element layer 402; first electrode 403; second electrode 404; sealing piece 405; molybdenum rod 406; first heating section 41; second heating section 42; first sub-heating section 421; second sub-heating section 422; third sub-heating section 423; sub-heating pipe 43; heating disc 5; first face 51; support mechanism 6; base 61; first mounting hole 611; mounting hole first end 6111; mounting hole second end 6112; first opening 6113; second opening 6114; first mounting section 6115; second mounting section 6116; first insertion slot 612; slot opening 6121; insertion slot inner side 6122; first inner side 61221; second mounting hole 613; third opening 6131; fourth opening 6132; first base 614; third connecting part 6141; second base 615; fourth connecting part 6151; first elastic member 62; first support member 63; first limiting plate 64; limiting plate hole 641; first connecting member 7; first connecting part 71; support face 711; limiting column 712; reflecting plate 8; second connecting part 81; reflecting face 82; third through hole 83; connecting piece 91; containing slot 911. DETAILED DESCRIPTION

[0071] For the purpose of making the purposes and embodiments of the present application more clear, the following will clearly and completely describe the exemplary embodiments of the present application in conjunction with the accompanying drawings of the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only a part of the embodiments of the present application, but not all the embodiments of the present application.

[0072] It should be noted that the brief description of the terms in the present application is only for the convenience of understanding the subsequently described embodiments, and is not intended to limit the embodiments of the present application. Unless otherwise specified, these terms should be understood according to their ordinary and general meanings.

[0073] The terms "first", "second", "third", and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar or identical objects or entities, and do not necessarily mean to limit the specific order or sequence, unless otherwise noted. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances.

[0074] The terms "include" and "have" and any variations thereof are intended to cover but not exclusive inclusion, for example, a product or device including a series of components does not have to be limited to all the components clearly listed, but can include other components not clearly listed or inherent to these products or devices.

[0075] The present application proposes a cooking device 100, which will be described below with reference to the accompanying drawings.

[0076] With reference to Figures 1-3 , the cooking device 100 can include a cabinet 1. The cabinet 1 can be used to protect the components located inside the cabinet 1.

[0077] The bottom of the cabinet 1 to the top of the cabinet 1 can be the height direction of the cabinet 1. The cabinet 1 can have a length direction. The side end of the cabinet 1 to the other side end of the cabinet 1 can be the length direction of the cabinet 1. The cabinet 1 can have a front-rear direction. The front of the cabinet 1 can be the side of the cabinet 1 facing the user. Among the three of the height direction, the length direction and the front-rear direction of the cabinet 1, any two directions can be perpendicular to each other.

[0078] With reference to Figures 2-4 , the cooking device 100 can include a liner 2. The liner 2 can be provided in the cabinet 1. The liner 2 can form a cooking cavity 21 therein. The cooking cavity 21 can be a cavity for placing food materials. The front end of the cooking cavity can be provided with a cooking cavity opening 211, so as to put food materials into the cooking cavity or take them out of the cooking cavity.

[0079] With reference to Figures 2-4The cooking device 100 can comprise a box door 3. The box door 3 can be movably connected to the front side of the box shell. The box door 3 can be rotatably connected to the box shell 1. The box door 3 can be arranged at the front end of the cooking cavity opening, and the box door 3 is used to open or close the cooking cavity opening 211.

[0080] In the present application, the cooking device 100 can comprise a first heating device, which can be used to heat the air in the inner container.

[0081] In the present application, with reference to Figures 5-7 The first heating device can comprise a first heating pipe 4. The first heating pipe 4 can be used to heat the air in the inner container. The first heating pipe 4 can have at least two. The first heating pipe 4 can be an infrared heating pipe that heats the air in the inner container by heat radiation. Compared with the existing metal heating pipe, the heat transfer efficiency of the infrared heating pipe is high.

[0082] The first heating pipe 4 can comprise a first heating section 41. The first heating section 41 can be arranged in the inner container. The central axis of the first heating section can be parallel to the front-rear direction of the box shell. The first heating section can have two sections. The two first heating sections can be arranged in the length direction of the box shell.

[0083] The first heating pipe 4 can comprise a second heating section 42. The second heating section 42 can be arranged in the inner container. The two ends of the second heating section 42 can be respectively connected to one end of the two first heating sections close to the cooking cavity opening.

[0084] The second heating section 42 can comprise a first sub-heating section 421. The central axis of the first sub-heating section 421 can be perpendicular to the central axis of the first heating section, so that the central axis of the first sub-heating section 421 can be parallel to the length direction of the box shell.

[0085] The plane perpendicular to the height direction of the box shell can be defined as a first plane. In the adjacent two first heating pipes, one of the first heating pipes is arranged on the outside of the other first heating pipe, and the projections of the adjacent two first heating pipes on the first plane are arranged at intervals.

[0086] With reference to Figures 5-7 The distance between the central axes of the adjacent two first heating sections in the length direction of the box shell is a first distance L1. The first sub-heating sections of the two first heating pipes are arranged adjacent to each other, and the distance between the central axes of the adjacent two first sub-heating sections in the front-rear direction of the box shell is a fourth distance L4. Wherein, L4 < L1.

[0087] The first heating pipe is an infrared heating pipe, so that the heat transfer efficiency of the first heating pipe is high. The first heating pipe includes a first heating section and a second heating section. The central axis of the first heating section is parallel to the front-rear direction of the box shell. The central axis of the first sub-heating section 421 is parallel to the length direction of the box shell. L4 < L1. The heating pipes in the front part and the rear part of the inner container are relatively uniform. The temperatures of the first heating section setting area and the second heating section setting area are relatively more uniform. The cooking effect is improved.

[0088] L4 / L1 < the fifth parameter value. The fifth parameter value can be any value between 2 / 3 and 1. The fifth parameter value can be 1, and L4 / L1 < 1. The first heating pipe in the front part of the inner container is not too sparse. The temperatures of the first heating section setting area and the second heating section setting area are relatively more uniform. The cooking effect is improved.

[0089] L4 / L1 ≥ the sixth parameter value. The sixth parameter value can be any value between 1 / 3 and 1 / 2. The sixth parameter value can be 1 / 2, and L4 / L1 ≥ 1 / 2. The first heating pipe in the front part of the inner container is not too dense. The temperatures of the first heating section setting area and the second heating section setting area are relatively more uniform. The cooking effect is improved. L4 / L1 = 1 / 2 is set, so that the temperatures of the first heating section setting area and the second heating section setting area are relatively more uniform. The cooking effect is good.

[0090] In the present application, the distance between the first sub-heating section closest to the front end of the inner container and the front end of the inner container in the front-rear direction of the box shell is a fifth distance L5, and L5 < L1. The first heating pipe in the front end of the inner container is not too dense, and the first heating pipe in other areas in the inner container is not too different in density. The temperature in the inner container is more uniform. The cooking effect is good.

[0091] L5 / L1 < the seventh parameter value. The seventh parameter value can be any value between 2 / 3 and 1. The seventh parameter value can be 1, and L5 / L1 < 1. The first heating pipe in the front end of the inner container is not too sparse. The temperature in the inner container is more uniform.

[0092] L5 / L1 ≥ the eighth parameter value. The eighth parameter value can be any value between 1 / 3 and 1 / 2. The eighth parameter value can be 1 / 2, and L5 / L1 ≥ 1 / 2. The first heating pipe in the front end of the inner container is not too dense. The temperature in the inner container is more uniform. L5 / L1 = 1 / 2 is set. The first heating pipe in the front end of the inner container is not too dense, and the first heating pipe in other areas in the inner container is not too different in density. The temperature in the inner container is more uniform.

[0093] The fifth distance and the fourth distance can be equal, so that the first heating pipe at the front end of the inner container is densely arranged, and the temperature in the inner container is more uniform.

[0094] In the present application, with reference to Figures 5-8 The inner container 2 can include a first side plate 22. The first side plate 22 can be arranged at one end of the inner container in the length direction of the cabinet shell. The inner container 2 can include a second side plate 23. The second side plate 23 can be arranged at the other end of the inner container in the length direction of the cabinet shell. That is, the first side plate 22 and the second side plate 23 can be arranged at both ends of the inner container in the length direction of the cabinet shell, respectively.

[0095] The inner container 2 can include an inner container top plate 24, which can be arranged at the top of the inner container. A first transition plate 251 can be connected between the inner container top plate and the first side plate. The inner surface of the first transition plate is arc-shaped. A second transition plate 252 can be connected between the inner container top plate and the second side plate. The inner surface of the second transition plate is arc-shaped.

[0096] With reference to Figures 5-8 The distance between the central axis of the first heating section and the first side plate in the length direction of the cabinet shell is a second distance L2. The distance between the central axis of the first heating section and the second side plate in the length direction of the cabinet shell is a third distance L3.

[0097] L2 / L1≥a first parameter value. The first parameter value can be any value between 1 / 5 and 4 / 15. The first parameter value can be 1 / 4, and L2 / L1≥1 / 4. By setting L2 / L1≥1 / 4, it can be avoided that L2 / L1 is too small, and the first heating section near the first side plate is too dense, so that the temperature near the first side plate is relatively high, and the temperature difference in the inner container is large, thereby improving the cooking effect.

[0098] L2 / L1≤a second parameter value. The second parameter value can be any value between 1 / 3 and 2 / 3. The second parameter value can be 1 / 3, and L2 / L1≤1 / 3. By setting L2 / L1≤1 / 3, it can be avoided that L2 / L1 is too large, and the first heating section near the first side plate is too sparse, so that the temperature near the first side plate is relatively low, and the temperature difference in the inner container is large, thereby improving the cooking effect.

[0099] By setting L2 / L1≥1 / 4 and L2 / L1≤1 / 3, the first heating section near the first side plate and the first heating section in other areas can be relatively uniform, the temperature in the inner container can be relatively uniform, the temperature difference can be avoided to be too large, and the cooking effect can be improved.

[0100] The second parameter value can be 1 / 2, and L2 / L1≤1 / 2. By setting L2 / L1≤1 / 2, L2 / L1 can be prevented from being too large, the first heating section near the first side plate can be prevented from being too sparse, the temperature near the first side plate can be relatively low, the temperature difference between different positions in the inner container can be prevented from being large, and the cooking effect can be improved.

[0101] By setting L2 / L1≥1 / 4 and L2 / L1≤1 / 2, the first heating section near the first side plate and the first heating section in other regions can be relatively uniform, the temperature at different positions in the inner container can be relatively uniform, the temperature difference can be prevented from being too large, and the cooking effect can be improved.

[0102] L3 / L1≥a third parameter value. The third parameter value can be any value between 1 / 5 and 4 / 15. The third parameter value can be 1 / 4, and L3 / L1≥1 / 4. By setting L3 / L1≥1 / 4, L3 / L1 can be prevented from being too small, the first heating section near the second side plate can be prevented from being too dense, the temperature near the second side plate can be relatively high, the temperature difference between different positions in the inner container can be prevented from being large, and the cooking effect can be improved.

[0103] L3 / L1≤a fourth parameter value. The fourth parameter value can be any value between 1 / 3 and 2 / 3. The fourth parameter value can be 1 / 3, and L3 / L1≤1 / 3. By setting L3 / L1≤1 / 3, L3 / L1 can be prevented from being too large, the first heating section near the second side plate can be prevented from being too sparse, the temperature near the second side plate can be relatively low, the temperature difference between different positions in the inner container can be prevented from being large, and the cooking effect can be improved.

[0104] By setting L3 / L1≥1 / 4 and L3 / L1≤1 / 3, the first heating section near the second side plate and the first heating section in other regions can be relatively uniform, the temperature at different positions in the inner container can be relatively uniform, the temperature difference can be prevented from being too large, and the cooking effect can be improved.

[0105] The fourth parameter value can be 1 / 2, and L3 / L1≤1 / 2. By setting L3 / L1≤1 / 2, L3 / L1 can be prevented from being too large, the first heating section near the second side plate can be prevented from being too sparse, the temperature near the second side plate can be relatively low, the temperature difference between different positions in the inner container can be prevented from being large, and the cooking effect can be improved.

[0106] By setting L3 / L1≥1 / 4 and L3 / L1≤1 / 2, the first heating section near the second side plate and the first heating section in other regions can be relatively uniform, the temperature at different positions in the inner container can be relatively uniform, the temperature difference can be prevented from being too large, and the cooking effect can be improved.

[0107] In the present application, reference is made to Figures 5-8The first heating pipe can have two. The distance between the first side plate and the second side plate in the length direction of the box shell is a sixth distance L6, L6=3L1+L3+L2, so that the distance between the first side plate and the second side plate matches the number of the first heating pipe, so that the temperature in the inner container is relatively uniform.

[0108] In the present application, the first heating pipe closest to the rear end of the inner container is the inner first heating pipe. The first heating section of the inner first heating pipe is the inner first heating section. The second heating section of the inner first heating pipe is the inner second heating section. The first sub-heating section of the inner first heating pipe is the inner first sub-heating section. The central axis of the inner first heating section can be coplanar with the central axis of the inner first sub-heating section. The central axis of the inner first heating section can be coplanar with the central axis of the inner second heating section.

[0109] In the present application, the central axis of the first heating section and the central axis of the second heating section are coplanar. The central axis of the first heating section and the central axis of the first sub-heating section are coplanar. The central axes of the first heating pipe are all located in the same plane.

[0110] In the present application, with reference to Figures 9-10 The cooking device can include a heating disc 5. The heating disc 5 can include a first surface 51. The first surface 51 can be used to place cooking food materials.

[0111] When the heating disc 5 is arranged in the inner container, the heating disc can have a first position. When the heating disc is in the first position, the minimum distance between the first surface and the central axis of the inner first heating section in the height direction of the box shell is a first distance H1. H1 2 ≥4 / 7L1, H1 2 ≤L1, so that the temperature at the first surface is relatively uniform, and when the food materials to be cooked are placed on the first surface corresponding to the first distance, local high temperature or low temperature is avoided, so that the cooking effect is good.

[0112] In the present application, the distance between the rear end of the inner first heating section and the central axis of the first sub-heating section in the front-rear direction of the box shell is 2L1.

[0113] When the heating disc is in the first position, the distance from the center of the first surface 51 to the central axes of the two inner first heating sections is equal, and the distance between the center of the first surface 51 and the central axis of the inner first sub-heating section in the front-rear direction of the box shell is L1, so as to better determine the first position.

[0114] According to the law of heat radiation, the radiation energy received by a point from the first heating pipe is proportional to the inverse of the square of the distance between the point and the first heating pipe.

[0115] With reference to Figures 9-10 The center point of the first surface 51 can be the X point. The distance between the X point and the central axis of one of the inner first heating sections is a seventh distance. The square of the seventh distance is L72 = 1 / 4L1 2 + H1 2 . The distance between the X point and the center axis of the inner first heating section is an eighth distance L8. The square of the eighth distance is L8 2 = 1 / 4L1 2 + H1 2 . The distance between the X point and the center axis of the inner first sub-heating section is a ninth distance L9. The square of the ninth distance is L9 2 = L1 2 + H1 2 .

[0116] The radiation energy of the X point is X 能量 = 2 / (1 / 4L1 2 + H1 2 ) + 1 / (L1 2 + H1 2 ).

[0117] A plane parallel to the first plane and passing through the X point is defined as a second plane. A point Y is selected on the second plane, and the point Y is the closest point to the X and directly below the inner first heating tube.

[0118] The distance between the Y point and one of the inner first heating sections is a tenth distance L10. The square of the tenth distance is L10 2 = H1 2 . The distance between the Y point and the other inner first heating section is an eleventh distance L11. The square of the eleventh distance is L11 2 = L1 2 + H1 2 . The distance between the Y point and the center axis of the inner first sub-heating section is a twelfth distance L12. The square of the twelfth distance is L12 2 = L1 2 + H1 2 . The radiation energy of the Y point is Y 能量 = 1 / H1 2 + 2 / (L1 2 + H1 2 ). Y 能量 = X 能量 , and H1 2 = L1 2 .

[0119] A point Z is selected on the second plane, and the point Z is the farthest point to the X and directly below the inner first heating section. The distance between the Z point and one of the inner first heating sections is a thirteenth distance L13. The square of the thirteenth distance is L13 2 = H1 2 . The distance between the Y point and the other inner first heating section is an eleventh distance L11. The square of the eleventh distance is L11 2= L1 2 + H1 2 The distance between the Y point and the center axis of the inner first sub-heating section is a fifteenth distance L15. The square of the fifteenth distance is L152. 2 = 4L1 2 + H1 2 .

[0120] The radiant energy of the Y point is Y 能量 = 1 / H1 2 + 1 / (L1 2 + H1 2 ) + 1 / (4L1 2 + H1 2 ). Z 能量 = X 能量 , and H1 2 = 4 / 7L1 2 is calculated. H1 2 ≥ 4 / 7L1 2 , and H1 2 ≤ L1 2 , so that the temperature of each part of the first surface is relatively uniform when the heating disc is in the first position, avoiding that the first surface is too close or too far from the inner first heating pipe, causing a large temperature difference of each part of the first surface, so that the heating disc is in the first position, which is more conducive to cooking and ensures the uniformity of the cooked food.

[0121] In the present application, the cooking device can include a shelf assembly. The shelf assembly can include a first shelf. The shelf assembly can include a second shelf. The first shelf can be provided with a plurality of first support portions. The second shelf can be provided with a plurality of second support portions. One side of the heating disc can be arranged on one of the first support portions, and the other side of the heating disc can be arranged on one of the second support portions.

[0122] In the present application, the second heating section can include a second sub-heating section 422. One end of the second sub-heating section 422 can be connected with one end of the first sub-heating section, and the other end of the second sub-heating section can be connected with one end of the first heating section close to the front end of the inner container of the first heating pipe, facilitating the molding of the first heating pipe. The center axis of the second sub-heating section can be arc-shaped. The center axis of the second sub-heating section can be a circular arc. The second sub-heating section can protrude outward from the area surrounded by the first heating pipe.

[0123] The second heating section can include a third sub-heating section 423. One end of the third sub-heating section 423 can be connected with the other end of the first sub-heating section, and the other end of the third sub-heating section can be connected with the other end of the first heating tube which is close to the front end of the inner container, facilitating the molding of the first heating tube. The central axis of the second sub-heating section can be arc-shaped. The central axis of the second sub-heating section can be a circular arc. The third sub-heating section can protrude outward from the area surrounded by the first heating tube.

[0124] In the present application, reference is made to Figures 11-12 The first heating tube can include a heating tube body 401. A tube body cavity 4011 is formed in the heating tube body, and a heating element layer 402 is arranged in the tube body cavity. The heating element layer 402 can be covered on the inner wall of the heating tube body. The heating element layer can be a material containing graphene. The two ends of the heating element layer are respectively connected with a first electrode 403. The first electrode 403 can be connected with a second electrode 404. The second electrode can be connected with a sealing sheet 405. The sealing sheet can be connected with a molybdenum rod 406. The molybdenum rod can be connected with an external wire.

[0125] In the present application, reference is made to Figure 13 The inner container 2 can include an inner container rear plate 25. The inner container rear plate 25 can be located at the rear of the inner container. The inner container rear plate can be provided with a first through hole 251. The first through hole 251 can penetrate the inner container rear plate in the front-rear direction of the box shell. The two ends of the first heating tube can be arranged in the first through hole respectively. The first heating tube 4 can be fixed on the inner container rear plate 25.

[0126] In the present application, the cooking device 100 can include a fan cover plate. The fan cover plate can be arranged in the inner container 2. The fan cover plate can be arranged in front of the inner container rear plate, and the fan cover plate and the inner container rear plate can define a fan cavity. The fan cavity can be located below the first heating tube 4. The fan cover plate can divide the space in the inner container into the fan cavity and the cooking cavity. The fan cavity is located at the rear of the fan cover plate.

[0127] The fan cover plate can be formed with an air inlet. The air inlet can communicate the fan cavity and the cooking cavity. The air inlet can be an entrance for air to flow from the cooking cavity into the fan cavity.

[0128] The fan cover plate can be formed with an air outlet. The air outlet can communicate the fan cavity and the cooking cavity. The air outlet can be an exit for air to flow from the fan cavity into the cooking cavity.

[0129] The cooking device can include a fan. The fan can include a fan. The fan can be arranged in the fan cavity, so that the air in the cooking cavity flows into the fan cavity through the air inlet and then flows back into the cooking cavity through the air outlet.

[0130] The air fan can include a fan motor. The fan motor can be connected with the fan to drive the fan to rotate. The fan motor drives the fan to rotate to make the air in the cooking cavity flow into the air fan cavity through the air inlet and then flow back to the cooking cavity through the air outlet.

[0131] The rotating shaft of the fan motor can be inserted into the air fan cavity from the rear of the inner container rear plate and connected with the fan, so that the fan motor is mostly arranged outside the inner container, avoiding the influence of steam or high temperature in the inner container on the fan motor.

[0132] In the present application, the cooking device can include a third heating pipe. The third heating pipe can be used to heat the air in the air fan cavity. The third heating pipe can be at least partially arranged in the air fan cavity to heat the air in the air fan cavity.

[0133] The third heating pipe can include a third heating portion. The third heating portion is arranged in the air fan cavity. The third heating portion is arranged at the fan, and the third heating portion can be wrapped around the outside of the fan along the circumference of the fan. The third heating portion can be spirally wound into at least two turns.

[0134] The third heating pipe can heat the air after the air flows out of the centrifugal fan, and the heated air flows back to the cooking cavity through the air outlet.

[0135] In the present application, the inner container can include an inner container top plate 24. The inner container top plate 24 can be arranged at the top of the inner container.

[0136] The cooking device 100 can include a first heating device. The first heating device can include a first heating pipe 4, which can be at least partially arranged in the cooking cavity. The first heating pipe can be used to heat the air in the inner container.

[0137] In the present application, with reference to Figures 14-16 , the cooking device 100 can include a support mechanism 6. The support mechanism 6 can be arranged in the cooking cavity, and the support mechanism 6 can be connected to the inner container top plate. The support mechanism 6 can be used to fix the first heating pipe 4.

[0138] In the present application, with reference to Figures 14-16 , the first heating pipe 4 can have a locked position. The first heating pipe 4 can have an unlocked position. When the first heating pipe is in the locked position, the first heating pipe can be limited on the support mechanism, so that the first heating pipe is fixed on the inner container top plate. When the first heating pipe is in the unlocked position, the first heating pipe is separated from the support mechanism, so that the first heating pipe is separated from the inner container top plate.

[0139] In the present application, with reference to Figures 14-16 , the cooking device can include a first connecting piece 7. The first connecting piece 7 can be arranged in the cooking cavity. The first connecting piece can be connected with the first heating pipe. The first connecting piece includes a first connecting portion 71.

[0140] The cooking device can comprise a reflecting plate 8. The reflecting plate 8 can be arranged in the cooking cavity. The reflecting plate 8 can comprise a second connecting part 81, through cooperation of the second connecting part and the first connecting part, the reflecting plate is detachably connected on the first connecting member. When the reflecting plate is connected on the first connecting member, the reflecting plate is arranged above the first heating pipe. The reflecting plate has a spacing with the first heating pipe, and the reflecting plate is connected with the first connecting member through the second connecting part and the first connecting part.

[0141] The reflecting plate is arranged above the first heating pipe when the reflecting plate is connected on the first connecting member, and the reflecting plate has a spacing with the first heating pipe, so that the reflecting plate can reflect the heat generated by the first heating pipe to irradiate on the food, thereby achieving full utilization of heat energy, improving the heating efficiency, and the reflecting plate can shield part of the inner container, so that the oil stains can be splashed on the reflecting plate during cooking, thereby making the part of the inner container top plate shielded by the reflecting plate relatively clean.

[0142] The reflecting plate is detachably connected on the first connecting member, so that the reflecting plate can be detached for cleaning, which is convenient and thorough, and solves the problem of small space and difficult cleaning when cleaning the inner container top plate.

[0143] The first heating pipe can be limited on the inner container top plate by the supporting mechanism, or the first heating pipe can be separated from the inner container top plate by the supporting mechanism, and the front end of the first heating pipe can move downward, thereby facilitating the disassembly and assembly of the reflecting plate.

[0144] In the present application, with reference to Figures 14-16 The reflecting plate can comprise a reflecting surface 82. When the reflecting plate is connected on the first connecting member, the reflecting surface is arranged on the side of the reflecting plate close to the first heating pipe. The vertical distance from any point on the reflecting surface to the first heating pipe is a sixteenth distance L16.

[0145] L16≥a ninth parameter value. The ninth parameter value can be any value in 4mm-6mm. The ninth parameter value can be 5mm. L16>5mm, which can avoid that the sixteenth distance is too small, avoid that the reflection of heat by the reflecting plate cannot form, and make the reflecting plate normally reflect heat.

[0146] L16≤a tenth parameter value. The tenth parameter value can be any value between 15mm and 25mm. The tenth parameter value can be 20mm. L16<20mm, which can avoid that the sixteenth distance L16 is too large, avoid poor reflection effect, and avoid that the overall height of the cooking device is too large.

[0147] L16>5mm, L16<20mm, the sixteenth distance is avoided to be too small, the reflection of the heat by the reflection plate is avoided to be unable to form, the reflection plate can normally reflect heat, the sixteenth distance L16 is avoided to be too large, the reflection effect is avoided to be poor, and the overall height of the cooking device is avoided to be large.

[0148] In the present application, with reference to Figures 16-17 , the second connecting part 81 can be a second through hole penetrating the reflection plate in the thickness direction of the reflection plate. The first connecting part 71 can include a support surface 711. The first connecting part 71 can include a limiting column 712, the reflection plate 8 is arranged on the support surface, and the limiting column is inserted into the second through hole; the second through hole, the support surface and the limiting column are arranged, the reflection plate can be limited on the first connecting part, the reflection plate is convenient to install on the first connecting part, and the reflection plate is convenient to dismount from the first connecting part.

[0149] In the present application, the first heating pipe can have a plurality of first heating pipes, and each first heating pipe can have a plurality of sub-heating pipes 43. The first connecting part can be connected with at least two sub-heating pipes, and the sub-heating pipes connected by the first connecting part can belong to the same first heating pipe, or the sub-heating pipes connected by the first connecting part can belong to different first heating pipes.

[0150] In the present application, with reference to Figures 17-19 , the cooking device can include a connecting sheet 91, and the connecting sheet 91 can connect the first connecting part and the first heating pipe. The connecting sheet 91 can be formed with a receiving groove 911. The receiving groove 911 can be formed by bending the connecting sheet 91, and the first heating pipe 4 can be arranged in the receiving groove 911.

[0151] In the present application, with reference to Figures 20-24 , the support mechanism 6 can include a base 61. The base 61 can be connected with the inner container top plate 24. The base 61 can be formed with a first mounting hole 611. The first mounting hole 611 includes a mounting hole first end 6111 and a mounting hole second end 6112 arranged opposite in the length direction of the first mounting hole, and the first mounting hole first end is provided with a first opening 6113.

[0152] The support mechanism 6 can include a first elastic member 62, and the first elastic member 62 can be arranged in the first mounting hole. The first elastic member can be telescopic after being stressed. The first elastic member can be a spring.

[0153] The support mechanism 6 can include a first support member 63. The first support member 63 can be arranged at least partially in the first mounting hole. The first support member can be located on the side of the first elastic member away from the mounting hole second end. The first support member 63 can be connected with the first elastic member 62.

[0154] The first support member can have a first position. The first support member can have a second position. When the first support member is in the first position, the first support member can be partially located outside the first mounting hole through the first opening. When the first support member is in the first position, the first elastic member is in an original length state or a compressed state. When the first support member is in the second position, the first elastic member is in a compressed state.

[0155] When the first support member is switched from the first position to the second position, the first support member is close to the second end of the mounting hole, and the first support member compresses the first elastic member. When the first support member is switched from the second position to the first position, the first elastic member drives the first support member away from the second end of the mounting hole.

[0156] When the first heating pipe is in the locked position, the first support member is in the first position, and the first support member can support the first heating pipe. When the first support member is in the second position, the first heating pipe is in the unlocked position.

[0157] The support mechanism includes a base, a first elastic member, and a first support member, which can lock the first heating pipe on the inner container top plate to fix the first heating pipe, and can make the first heating pipe and the inner container top plate disengage from the limitation, facilitating the disassembly of the first heating pipe.

[0158] The first support member can be pushed from the first position to the second position by an external force, so that the first heating pipe can be moved from the locked position to the unlocked position.

[0159] The sub-heating pipe can include a third sub-heating pipe. When the first heating pipe is in the locked position, the third sub-heating pipe is arranged on the first support member.

[0160] The length direction of the first mounting hole can be perpendicular to the height direction of the box shell. Specifically, the length direction of the first mounting hole can be parallel to the front-rear direction of the box shell. The central axis of the third sub-heating pipe can be parallel to the length direction of the box shell.

[0161] In the present application, with reference to Figures 20-24 The third through hole 83 can be formed on the reflecting plate. The reflecting plate can be sleeved on the base through the third through hole, so that the first support member on the base can be located below the reflecting plate, and the first support member can support the first heating pipe.

[0162] The second through hole can have a plurality of second through holes, and the plurality of second through holes can be arranged outside the third through hole. The second through hole can have four second through holes.

[0163] In the present application, with reference to Figures 20-26 The first plug-in slot 612 can be formed on the base 61. The first plug-in slot 612 has a slot opening 6121.

[0164] The second end of the mounting hole is provided with a second opening 6114, and the first mounting hole is communicated with the first insertion slot through the second opening. The first support member and the first elastic member are arranged in the first mounting hole through the first insertion slot and the second opening.

[0165] The support mechanism 6 can include a first limiting plate 64. The first limiting plate 64 can be inserted into the first insertion slot through a slot opening to limit the first elastic member and the first support member in the first mounting hole, so as to prevent the first elastic member and the first support member from being pulled out of the first mounting hole and ensure the normal work of the first support member.

[0166] When the first limiting plate 64 is inserted into the first insertion slot, the first elastic member can be compressed, or the first elastic member is in an original length state.

[0167] In the present application, the first insertion slot can have an insertion slot inner side surface 6122. The slot opening can be arranged at one end of the insertion slot inner side surface. The second opening can be arranged on the insertion slot inner side surface.

[0168] In the present application, the base 61 can be formed with a second mounting hole 613, and the second mounting hole can be arranged on a side of the first insertion slot away from the first mounting hole. The second mounting hole is provided with a third opening 6131 and a fourth opening 6132 at two ends in the length direction of the second mounting hole, respectively. The second mounting hole is communicated with the first insertion slot through the fourth opening, and the first elastic member and the first support member are arranged in the first mounting hole through the third opening, the fourth opening, the first insertion slot and the second opening, so as to facilitate the installation of the first support member and the first elastic member into the first mounting hole or the removal of the first support member and the first elastic member from the first mounting hole. The third opening can be arranged on the insertion slot inner side surface. The length direction of the second mounting hole can be parallel to the length direction of the first mounting hole. The second mounting hole can be arranged opposite to the first mounting hole.

[0169] In the present application, referring to Figure 25 , the insertion slot inner side surface 6122 can include a first inner side surface 61221. The first inner side surface can be located at the bottom end of the insertion slot inner side surface. The first inner side surface is an inclined surface, and one end of the first inner side surface away from the slot opening is located on a side of the one end of the first inner side surface located at the slot opening close to the bottom end of the box shell, so as to facilitate the insertion of the first limiting plate into the first insertion slot and prevent the first limiting plate from being pulled out of the first insertion slot by itself.

[0170] In the present application, the first limiting plate can be formed with a limiting plate hole 641. The limiting plate hole 641 can be located at one end of the first limiting plate close to the second mounting hole. The limiting plate hole 641 can penetrate through the first limiting plate. The length direction of the limiting plate hole can be parallel to the length direction of the first mounting hole.

[0171] The limiting plate hole can be a circular hole. The diameter of the limiting plate hole can be smaller than the outer diameter of the first elastic member, which can prevent the first elastic member from being pulled out of the first mounting hole through the limiting plate hole. The limiting plate hole can facilitate the removal of the first limiting plate from the first insertion slot.

[0172] In the present application, the first mounting hole can have at least one pair of two first mounting holes arranged at intervals in the length direction of the first mounting hole. In the pair of two first mounting holes, the end of any one first mounting hole close to the other first mounting hole is provided with one end of the first opening of the first mounting hole.

[0173] The first elastic member and the first support member can each have at least one pair. The pair of two first elastic members are respectively arranged in the pair of two first mounting holes, and the pair of two first support members are respectively arranged in the pair of two first mounting holes. When the first support member is in the first position, the pair of two first support members are in contact or arranged at intervals. When the first support member is in the second position, the pair of two first support members are arranged at intervals. This allows the two first support members to jointly support the first heating pipe, providing a larger space for the movement of the first heating pipe when the two first support members are in the second position, and facilitating the switching of the first heating pipe between the locked position and the unlocked position.

[0174] When the first heating pipe is in the locked position, the pair of two first support members are respectively in the first position, and the first heating pipe is arranged on the pair of two first support members, which can support the first heating pipe. When the pair of two first support members are in the second position, the first heating pipe can be in the unlocked position.

[0175] The two first support members can be pushed from the first position to the second position by an external force, so that the first heating pipe can be moved from the locked position to the unlocked position.

[0176] In the present application, the first support member can be a sphere. The first heating pipe can be pulled downward to move the first support member from the first position to the second position, and the first heating pipe can be switched from the locked position to the unlocked position.

[0177] In the present application, with reference to Figures 20-26 , the first mounting hole can include a first mounting section 6115 and a second mounting section 6116. The first mounting section is located on the side of the second mounting section close to the second end of the mounting hole. The diameter of the first mounting section can be greater than the diameter of the second mounting section. The maximum diameter of the first support member can be greater than the diameter of the second mounting section, and the maximum diameter of the first support member can be smaller than the diameter of the first mounting section, so that the first support member can be partially located in the first mounting hole and partially located outside the first mounting hole.

[0178] The diameter of the limiting plate hole can be smaller than the diameter of the first mounting section. The diameter of the limiting plate hole can be smaller than the diameter of the second mounting hole.

[0179] In the present application, with reference to Figures 20-26 The base can include a first base 614. A first mounting hole is formed on the first base. A first plug-in slot is formed on the first base. A second mounting hole is formed on the first base to facilitate the installation and design of the support mechanism.

[0180] The base can include a second base 615. A first mounting hole is formed on the second base. A first plug-in slot is formed on the second base. A second mounting hole is formed on the second base to facilitate the installation and design of the support mechanism.

[0181] The first base can be provided with a third connecting part 6141, which can be arranged on the top of the first base. The third connecting part can include a threaded column, which is threadedly connected with the inner container top plate, or the inner container top plate is provided with a through hole, and the third connecting part is inserted into the through hole of the inner container top plate and is threadedly connected with a nut above the inner container top plate.

[0182] With reference to Figures 20-26 The second base can be provided with a fourth connecting part 6151, which can be arranged on the top of the second base. The fourth connecting part can include a threaded column, which is threadedly connected with the inner container top plate, or the inner container top plate is provided with a through hole, and the fourth connecting part is inserted into the through hole of the inner container top plate and is threadedly connected with a nut above the inner container top plate.

[0183] In the present application, the first heating pipe can be a metal heating pipe, and a heat dissipation coating is coated on the outer surface of the first heating pipe. The outer surface of the first heating pipe can be partially coated with a heat dissipation coating. The outer surface of the first heating pipe can be entirely coated with a heat dissipation coating. The thickness of the heat dissipation coating is a first thickness M1. The coating can be black.

[0184] The main advantages of heat radiation over heat convection include no medium, long-distance transmission and high heat transfer efficiency. Heat radiation transfers heat through electromagnetic waves without any intermediate medium, while heat convection needs air and other media to transfer heat, so heat radiation has higher heat transfer efficiency.

[0185] The outer surface of the first heating pipe is coated with a heat dissipation coating, so that the first heating pipe can not only dissipate heat through heat conduction, but also improve the heat dissipation efficiency by enhancing the infrared emissivity of the heat source surface. After applying the coating, the heating mode of the first heating pipe changes from heat convection to a combination of heat convection and heat radiation, and the proportion of heat radiation is greatly improved, which can improve the heat transfer efficiency.

[0186] The first thickness K1 is greater than or equal to the eleventh parameter value. The eleventh parameter value can be any value between 15 μm and 20 μm. The eleventh parameter value can be 20 μm. The first thickness is greater than or equal to 20 μm. This can avoid the heat dissipation coating being too thin, and avoid affecting the heat dissipation effect.

[0187] The first thickness is less than or equal to the twelfth parameter value. The twelfth parameter value can be any value between 30 μm and 35 μm. The eleventh parameter value can be 30 μm. The first thickness is less than or equal to 30 μm. This can avoid the heat dissipation coating being too thick, and the thick coating can hinder the effective conduction of heat, resulting in a poor heat dissipation effect.

[0188] In the present application, the cooking device can include a fourth heating pipe. The fourth heating pipe is at least partially arranged below the inner container to heat the air in the inner container. The fourth heating pipe can include a fourth heating portion. The fourth heating portion can be arranged below the inner container.

[0189] In the present application, the cooking device can include a steam generator. The steam generator can be arranged in the cabinet. The steam generator can be arranged outside the inner container. The steam generator can be arranged behind the inner container. The steam generator is used to generate steam to supply steam into the cooking cavity, so that the cooking device can steam the food.

[0190] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

[0191] For the convenience of explanation, the above description has been made in combination with specific embodiments. However, the above exemplary discussion is not intended to exhaust or limit the embodiments to the specific forms disclosed above. Various modifications and variations can be derived according to the above teachings. The selection and description of the above embodiments are to better explain the principles and practical applications, so that those skilled in the art can better use the embodiments and various different modified embodiments suitable for specific use considerations.

Claims

1. A cooking apparatus, characterized in that, include: Box shell; An inner liner is disposed inside the outer shell, and a cooking cavity is formed inside the inner liner. The front end of the cooking cavity is provided with a cooking cavity opening. The cabinet door is used to open or close the cooking cavity opening; The first heating element is used to heat the air inside the inner liner; The first heating element has at least two components; the first heating element is an infrared heating element that heats the air inside the inner liner through thermal radiation, and the first heating element includes: The first heating section is located inside the inner liner, and the central axis of the first heating section is parallel to the front-back direction of the shell; the first heating section has two segments, and the two segments are arranged at intervals. A second heating section is disposed within the inner liner, and both ends of the second heating section are respectively connected to the ends of the two first heating sections near the opening of the cooking cavity. The second heating section includes: The central axis of the first sub-heating section is perpendicular to the central axis of the first heating section. A plane perpendicular to the height direction of the enclosure is defined as the first plane; In two adjacent first heating tubes, one of the first heating tubes is arranged around the outside of the other first heating tube, and the projections of the two adjacent first heating tubes on the first plane are spaced apart. The distance between the central axes of two adjacent first heating sections along the length of the casing is a first distance L1; the first sub-heating sections of the two first heating tubes are arranged adjacently, and the distance between the central axes of two adjacent first sub-heating sections along the front-back direction of the casing is a fourth distance L4. <L1。 2. The cooking apparatus according to claim 1, characterized in that, The distance between the first sub-heating section closest to the front end of the inner liner and the front end of the inner liner in the front-rear direction of the casing is the fifth distance L5. <L1。 3. The cooking apparatus according to claim 2, characterized in that, The fourth distance L4 is equal to the fifth distance L5.

4. The cooking apparatus according to claim 1, characterized in that, The inner liner includes a first side plate, which is located at one end of the inner liner along the length of the shell. The distance between the central axis of the first heating section and the first side plate along the length of the casing is the second distance L2, where L2 / L1≥1 / 4 and L2 / L1≤1 / 2.

5. The cooking apparatus according to claim 4, characterized in that, The inner liner includes a second side plate, which is located at the other end of the inner liner along the length of the shell. The distance between the central axis of the first heating section and the second side plate along the length of the shell is a third distance L3, where L3 / L1≥1 / 4 and L3 / L1≤1 / 2.

6. The cooking apparatus according to claim 1, characterized in that, include: A heating plate is disposed inside the inner liner and includes a first surface for placing cooking ingredients; The first heating tube containing the first sub-heating section closest to the rear end of the inner liner is the inner first heating tube; the first heating section and the first sub-heating section of the inner first heating tube are respectively the inner first heating section and the inner first sub-heating section, and the central axis of the inner first heating section and the central axis of the inner first sub-heating section are coplanar; When the heating plate is in the first position, the minimum distance between the first surface and the central axis of the inner first heating section in the height direction of the housing is the first distance H1. 2 ≥4 / 7L1 2 H1 2 ≤L1 2 .

7. The cooking apparatus according to claim 1, characterized in that, The second heating section includes: The second sub-heating section has one end connected to one end of the first sub-heating section, and its other end connected to one end of the first heating section of the first heating tube near the front end of the inner liner.

8. The cooking apparatus according to claim 7, characterized in that, The second heating section includes: The third sub-heating section has one end connected to the other end of the first sub-heating section, and its other end connected to the end of the other first heating section of the first heating tube near the front end of the inner liner.

9. The cooking apparatus according to claim 6, characterized in that, When the heating plate is in the first position, the distance from the center of the first surface to the central axis of the two inner first heating sections is equal, and the distance between the center of the first surface and the central axis of the inner first sub-heating section in the front-rear direction of the housing is L1.

10. A cooking apparatus, characterized in that, include: Box shell; The inner liner is located inside the outer shell; A heating plate is disposed within the inner pot and includes a first surface for placing cooking items; An inner first heating element is used to heat the air inside the inner liner; the inner first heating element is an infrared heating element that heats the air inside the inner liner through thermal radiation, and the inner first heating element includes: An inner first heating section is located inside the inner liner, and the central axis of the inner first heating section is parallel to the front-back direction of the outer shell; the inner first heating section has two sections, which are arranged at intervals. An inner second heating section is disposed inside the inner liner, and both ends of the inner second heating section are respectively connected to the ends of the two inner first heating sections near the opening of the cooking cavity. The inner second heating section includes: The central axis of the inner first sub-heating section is perpendicular to the central axis of the inner first heating section. The distance between the central axes of two adjacent inner first heating sections along the length of the casing is a first distance L1; the central axis of the inner first heating section and the central axis of the inner first sub-heating section are coplanar; When the heating plate is in the first position, the minimum distance between the first surface and the central axis of the inner first heating section in the height direction of the casing is H1. 2 ≥4 / 7L1,H1 2 ≤L1.

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