Cooking inner container and cooking utensil
By designing the regional arrangement of electrode components and controlling the electric field in the cooking pot, the problem of uneven heating of food is solved, and the temperature rise consistency and heating uniformity in solid-liquid mixtures are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD
- Filing Date
- 2025-03-20
- Publication Date
- 2026-04-21
AI Technical Summary
In existing cooking appliances, the electrode structure causes uneven heating of food, especially in solid-liquid mixtures, where the bottom and top temperatures are inconsistent.
Design a cooking inner pot in which electrode components are arranged in two regions along the height direction inside the cooking cavity. The electrode area of the first region is not less than that of the second region. The electrode components are arranged opposite each other in the circumferential direction, and the electric field direction formed is perpendicular to the height direction. By controlling the relationship between the electrode area and the electric field strength, the consistency of heating power is ensured.
It achieves uniform heating within the cooking cavity, especially consistent temperature rise in solid-liquid mixtures, thereby improving the heating efficiency and quality of food.
Smart Images
Figure CN224140613U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of electrical equipment technology, and in particular to a cooking inner pot and cooking utensil. Background Technology
[0002] Related technologies include some cooking appliances such as rice cookers and pressure cookers that use ohmic heating or pulsed electric fields to heat food. Both ohmic heating and pulsed electric fields use the electric field formed by electrodes to process food.
[0003] Cooking appliances in related technologies typically have two parallel electrodes in the inner pot as positive and negative electrodes. However, such electrodes may cause some food to not be heated effectively, resulting in uneven heating of the ingredients. Utility Model Content
[0004] In view of this, the present application aims to provide a cooking inner pot and cooking appliance that are simple to control and can heat food ingredients well and evenly.
[0005] To achieve the above objectives, one embodiment of this application provides a cooking inner pot, comprising:
[0006] The inner pot has a cooking cavity, the cooking cavity including a first region and a second region arranged along the height direction, the second region being located on one side of the top of the cooking cavity along the height direction, and the first region being located on the other side of the second region away from the top;
[0007] An electrode assembly for forming an electric field is disposed within the cooking cavity. The electrode assembly includes at least a first electrode assembly having a first electrode and a second electrode. A portion of the electrode assembly is located in the first region, and another portion is located in the second region. The electrode area of the electrode assembly located in the first region is not less than the electrode area of the electrode assembly located in the second region.
[0008] In one embodiment, the electrode assembly includes a first electrode assembly having a first electrode and a second electrode, the first electrode and the second electrode being disposed opposite each other circumferentially along the cooking cavity, and / or the direction of the electric field formed between the first electrode and the second electrode is perpendicular to the height direction; the dimension of the first region along the height direction is smaller than the dimension of the second region along the height direction.
[0009] In one embodiment, the first electrode and the second electrode include a ring structure, the centers of the first electrode and the second electrode overlap along the height direction, and there is an equal spacing between the circumferential edges of adjacent first electrodes and second electrodes.
[0010] In one embodiment, the electrode assembly includes a first electrode assembly having a first electrode and a second electrode, the first electrode and the second electrode being respectively disposed on opposite sides of the cooking cavity, a portion of the first electrode and a portion of the second electrode being located in the first region, and another portion of the first electrode and another portion of the second electrode being located in the second region.
[0011] In one embodiment, there are multiple first electrodes, and each second electrode corresponds to one of the first electrodes. The first electrodes and the second electrodes are alternately arranged along the circumference of the cooking cavity.
[0012] In one embodiment, multiple first electrodes are connected to the same circuit, and multiple second electrodes are connected to the same circuit, wherein the spacing between adjacent first electrodes along the circumferential direction of the cooking cavity is equal. That is, the multiple first electrodes are electrically connected to each other, and the multiple second electrodes are electrically connected to each other. When the spacing between adjacent first electrodes is equal, the electric field strength formed between the first electrodes and the second electrodes is kept consistent, thereby ensuring uniform heating at the inner wall of the liner.
[0013] In one embodiment, the first electrode and the second electrode are plate-shaped structures. The first electrode has a first width dimension along the circumference of the cooking cavity, and the second electrode has a second width dimension along the circumference of the cooking cavity. Both the first width dimension and the second width dimension gradually decrease along the height direction towards the top.
[0014] In one embodiment, the electric field strength between adjacent first electrodes and second electrodes satisfies the following relationship: |E1-E2| / d1≥10V / cm, where E1 is the voltage of the first electrode, E2 is the voltage of the second electrode, and d1 is the average straight-line distance between adjacent first electrodes and second electrodes.
[0015] In one embodiment, the inner liner includes a bottom wall and a side wall defining the cooking cavity, the bottom wall being located on the side opposite to the top in the first region, and the electrode assembly including a second electrode assembly having a third electrode and a fourth electrode, the third electrode and the fourth electrode being alternately disposed on the bottom wall; the first electrode and the second electrode being located on the outer periphery of the second electrode assembly, wherein the side wall is at least partially located in the second region.
[0016] In one embodiment, the first electrode and the third electrode are connected to the same circuit, and the second electrode and the fourth electrode are connected to the same circuit.
[0017] In one embodiment, the third electrode and the fourth electrode are in a ring structure, and the direction of the electric field formed between the third electrode and the fourth electrode is perpendicular to the height direction.
[0018] In one embodiment, the bottom wall includes a central region and an outer region located around the central region. The third electrode and the fourth electrode are disposed in the outer region around the central region. The center of the third electrode and the center of the fourth electrode overlap on the projection plane of the bottom wall along the height direction and are located within the central region.
[0019] In one embodiment, there are multiple second electrode assemblies, the fourth electrode corresponds one-to-one with the third electrode, there is a spacing between the circumferential edges of adjacent third electrodes and fourth electrodes and the spacing is equal, and the spacing between two adjacent second electrode assemblies is equal.
[0020] In one embodiment, the inner liner includes a bottom wall and a side wall defining the cooking cavity. The bottom wall is located on the side of the first region opposite to the top. The electrode assembly includes a third electrode assembly having a plurality of fifth electrodes and a plurality of sixth electrodes. The fifth electrodes and the sixth electrodes are in a ring structure and are alternately arranged on the bottom wall and the side wall. The centers of the plurality of fifth electrodes and the centers of the plurality of sixth electrodes overlap in the height direction. There is an equal spacing between the circumferential edges of adjacent fifth electrodes and sixth electrodes.
[0021] Another embodiment of this application provides a cooking appliance, including the cooking inner pot described above.
[0022] This application provides a cooking inner pot and a cooking appliance. The cooking cavity of the cooking inner pot of this application includes a first region and a second region arranged along the height direction. The first region is located on the other side of the second region away from the opening. By making the electrode area of the electrode assembly in the first region not less than the electrode area of the electrode assembly in the second region, the heating power in the first region is not less than the heating power in the second region when the average electric field strength in the first region and the average electric field strength in the second region are the same (without the need for a complex electronic control process to adjust the electric field strength in the first region and the second region). This improves the temperature uniformity in the first region and the second region. Therefore, the control method of the cooking inner pot of this application is simple and can perform better uniform three-dimensional heating of the food, achieving uniform temperature rise with the same heating rate at the bottom and top of the cooking cavity. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the structure of the first type of cooking inner pot according to an embodiment of this application;
[0024] Figure 2 for Figure 1 The diagram shows another structural view of the inner liner assembly;
[0025] Figure 3 This is a schematic diagram of the structure of a second type of cooking inner pot according to an embodiment of this application;
[0026] Figure 4 for Figure 3 The diagram shows another structural view of the inner liner assembly;
[0027] Figure 5 This is a schematic diagram of the structure of a third type of cooking inner pot according to an embodiment of this application;
[0028] Figure 6 for Figure 5 The diagram shows another angle of the inner liner assembly.
[0029] Explanation of reference numerals in the attached figures:
[0030] 10. Inner liner; 10a. Cooking cavity; 10a1. First region; 10a2. Second region; 10b. Opening; 11. Bottom wall; 12. Side wall; 20. Electrode assembly; 21. First electrode assembly; 211. First electrode; 212. Second electrode; 22. Second electrode assembly; 221. Third electrode; 222. Fourth electrode; 23. Third electrode assembly; 231. Fifth electrode; 232. Sixth electrode. Detailed Implementation
[0031] In the description of the embodiments in this application, it should be noted that the term "height direction" is based on the attached... Figure 1 The orientation or positional relationship shown is merely for the convenience of describing the embodiments of this application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the embodiments of this application.
[0032] This application provides a cooking inner pot; please refer to... Figures 1 to 6 The cooking pot includes an inner pot 10 and an electrode assembly 20.
[0033] The inner pot 10 has a cooking cavity 10a and an opening 10b communicating with the cooking cavity 10a. The opening 10b is located at the top of the cooking cavity 10a along the height direction. The cooking cavity 10a includes a first region 10a1 and a second region 10a2 arranged along the height direction. The second region 10a2 is located on one side of the opening 10b, that is, the second region 10a2 is located on one side of the top of the cooking cavity 10a along the height direction, and the first region 10a1 is located on the other side of the second region 10a2 away from the opening 10b (the top of the cooking cavity 10a).
[0034] The electrode assembly 20 is used to form an electric field. A portion of the electrode assembly 20 is located in a first region 10a1 and another portion is located in a second region 10a2. The electrode area of the electrode assembly 20 located in the first region 10a1 is not less than the electrode area of the electrode assembly 20 located in the second region 10a2.
[0035] The cooking cavity 10a is used to hold ingredients.
[0036] The electrode area refers to the effective surface area of the electrode assembly 20 in contact with the conductive medium. For example, there are two main ways to calculate the electrode area of the electrode assembly 20: one is to measure it directly in the 3D modeling software using a measurement tool, and the other is to measure the relevant values of the area in contact with the conductive medium of the electrode assembly 20 and calculate the electrode area by integration.
[0037] When the electrode assembly 20 is energized, the food is located in the electric field formed by the electrode assembly 20. Since the food usually has certain conductivity, the current generated in the food under the action of the electric field, through its own impedance, can generate heat energy under the action of the current flowing through it, thereby realizing the heating of the food.
[0038] Taking cooking rice as an example, rice is a solid food ingredient, and water is a liquid food ingredient. After the rice and water are placed into the cooking chamber 10a, the solid rice, due to its own gravity, will mostly settle in the first region 10a1, while the second region 10a2 is mainly composed of water-containing liquid. Generally speaking, the conductivity of solid rice is weaker than that of liquid, so the conductivity in the first region 10a1 is generally lower than that in the second region 10a2. This will cause the current flow in the first region 10a1 and the current flow in the second region 10a2 to be inconsistent, which may lead to uneven heating in the first region 10a1 and the second region 10a2. The heating power of the electrode satisfies the following relationship: P = a(E) 2S, where a is a constant, E is the average electric field strength, and S is the electrode area. Therefore, by ensuring that the electrode area of the electrode assembly 20 located in the first region 10a1 is not less than the electrode area of the electrode assembly 20 located in the second region 10a2, the heating power in the first region 10a1 is not less than the heating power in the second region 10a2, while maintaining the same average electric field strength in both regions. This improves the temperature rise consistency between the first region 10a1 and the second region 10a2. Please refer to [link / reference]. Figures 1 to 4 The electrode assembly 20 may include a first electrode assembly 21 having a first electrode 211 and a second electrode 212. The first electrode 211 and the second electrode 212 are arranged opposite each other along the circumference of the cooking cavity 10a1. The electric field formed between the first electrode 211 and the second electrode 212 is perpendicular to the height direction. This allows the food to have good heating uniformity in both the horizontal and vertical directions. In other words, it solves the problem that when the food is a solid-liquid mixture, the difference in electrical conductivity caused by gravity leads to uneven heating at the bottom of the food compared to the top.
[0039] Please see Figure 1 The dimension H4 of the first region 10a1 along the height direction can be smaller than the dimension H5 of the second region 10a2 along the height direction, thereby ensuring that the heating power of the region near the bottom of the cooking cavity 10a is not less than the heating power of the region near the opening 10b of the cooking cavity 10a.
[0040] It is understandable that, since the height of the solid ingredients in a solid-liquid mixture is generally less than 1 / 3 of the height of the cooking cavity 10a, the height of the first region 10a1 can not exceed 1 / 3 of the height of the cooking cavity 10a, so that the solid ingredients are deposited in the first region 10a1 or slightly higher than the height of the first region 10a1, in order to improve the temperature uniformity in the first region 10a1 and the second region 10a2 when the conductivity of the solid ingredients is weaker than that of the liquid ingredients.
[0041] This application also provides a cooking appliance, which includes the cooking inner pot provided in any embodiment of this application.
[0042] The cooking cavity 10a of the cooking pot in this embodiment includes a first region 10a1 and a second region 10a2 arranged along the height direction. The first region 10a1 is located on the other side of the second region 10a2 away from the opening 10b. By ensuring that the electrode area of the electrode assembly 20 in the first region 10a1 is not less than the electrode area of the electrode assembly 20 in the second region 10a2, the heating power in the first region 10a1 is not less than the heating power in the second region 10a2 when the average electric field strength in the first region 10a1 and the average electric field strength in the second region 10a2 are the same (without the need for a complex electronic control process to adjust the electric field strength in the first region 10a1 and the second region 10a2). This improves the temperature uniformity in the first region 10a1 and the second region 10a2. Therefore, the control method of the cooking pot in this embodiment is simple and can heat the food more evenly.
[0043] In one embodiment, please refer to Figures 1 to 4 The electrode assembly 20 may include a first electrode assembly 21 having a first electrode 211 and a second electrode 212. The first electrode 211 and the second electrode 212 are respectively disposed on opposite sides of the cooking cavity 10a. A portion of the first electrode 211 and a portion of the second electrode 212 are located in a first region 10a1, and another portion of the first electrode 211 and another portion of the second electrode 212 are located in a second region 10a2. That is, when the first electrode 211 and the second electrode 212 are energized, an electric field can be formed simultaneously in the first region 10a1 and the second region 10a2.
[0044] The first electrode 211 and the second electrode 212 are respectively disposed on opposite sides of the cooking cavity 10a, so that the food can be located between the first electrode 211 and the second electrode 212. When the first electrode 211 and the second electrode 212 are energized, the food is located in the electric field formed by the first electrode 211 and the second electrode 212.
[0045] The area of the first electrode 211 located in the first region 10a1 is not less than the area located in the second region 10a2. Correspondingly, the area of the second electrode 212 located in the first region 10a1 is not less than the area located in the second region 10a2, thereby ensuring that the heating power in the first region 10a1 is not less than the heating power in the second region 10a2.
[0046] Preferably, please refer to Figure 2 and Figure 4The first electrode 211 and the second electrode 212 can be symmetrically arranged on opposite sides of the cooking cavity 10a. That is, the horizontal distance between each point on the first electrode 211 and the second electrode 212 is the same, so that the potential difference between any two corresponding points on the first electrode 211 and the second electrode 212 is equal, thereby promoting uniform heating of the food.
[0047] The shapes of the first electrode 211 and the second electrode 212 are not limited. For example, please refer to [the relevant documentation / example]. Figure 1 and Figure 2 The first electrode 211 has a first width dimension H1 along the circumference of the cooking cavity 10a, and the second electrode 212 has a second width dimension H2 along the circumference of the cooking cavity 10a. The first width dimension H1 and the second width dimension H2 can both gradually decrease along the height direction towards the top, thereby ensuring that the electrode area of the first electrode 211 and the second electrode 212 gradually decreases along the height direction towards the top.
[0048] For example, please refer to Figure 4 The number of first electrodes 211 can be multiple, and the second electrodes 212 correspond one-to-one with the first electrodes 211. The first electrodes 211 and the second electrodes 212 are alternately arranged along the circumference of the cooking cavity 10a. That is to say, in addition to generating an electric field between the first electrode 211 and the second electrode 212 located on the opposite side of the cooking cavity 10a, the first electrode 211 can also generate an electric field between itself and the adjacent second electrode 212, thereby improving the heating efficiency of the food.
[0049] Please continue reading. Figure 4 The number of first electrodes 211 is three, and the number of corresponding second electrodes 212 is also three. In another embodiment, the number of first electrodes 211 can be two or more, and the number of corresponding second electrodes 212 can be two or more.
[0050] Preferably, multiple first electrodes 211 are connected to the same circuit, and multiple second electrodes 212 are connected to the same circuit. That is, the multiple first electrodes 211 are electrically connected to each other so that the voltage of the multiple first electrodes 211 is the same, and the multiple second electrodes 212 are electrically connected to each other so that the voltage of the multiple second electrodes 212 is the same. This makes the electric field strength between each first electrode 211 and the corresponding second electrode 212 the same, thereby achieving better heating uniformity.
[0051] It should be noted that when multiple first electrodes 211 are connected and multiple second electrodes 212 are connected, the current will flow between the first electrode 211 and the second electrode 212 that are closest in a straight line, that is, between adjacent first electrodes 211 and second electrodes 212.
[0052] Please see Figure 4 The spacing between adjacent first electrodes 211 is equal along the circumferential direction of the cooking cavity; that is, the plurality of first electrodes 211 are uniformly distributed along the circumference of the cooking cavity. Correspondingly, the plurality of second electrodes 212 are also uniformly distributed to further achieve heating uniformity. For example, please refer to [reference needed]. Figures 1 to 4 The first electrode 211 and the second electrode 212 are plate-shaped structures. The electric field strength between adjacent first electrodes 211 and second electrodes 212 satisfies the following relationship: |E1-E2| / d1≥10V / cm, where E1 is the voltage of the first electrode 211, E2 is the voltage of the second electrode 212, and d1 is the average straight-line distance between adjacent first electrodes 211 and second electrodes 212. This ensures that the electric field strength formed by the first electrode assembly 21 meets the requirements for food heating efficiency.
[0053] It should be noted that the average straight-line distance refers to the average straight-line distance between corresponding points on adjacent first electrodes 211 and second electrodes 212. It can be measured in several exemplary ways: Method 1: Create a 3D model in 3D modeling software such as Creo or Solidworks, and directly calculate the average straight-line distance d1 between adjacent first electrodes 211 and second electrodes 212 using tools within the 3D modeling software. Method 2: First, determine the surface equations or plane equations of the outer surfaces of adjacent first electrodes 211 and second electrodes 212, and then calculate the average straight-line distance d1 through integration. Method 3: Directly measure the diameter between corresponding points on adjacent electrodes using traditional measuring tools such as dial indicators / internal diameter gauges, vernier calipers (internal diameter jaws), etc. Generally, the measurement tolerance of household appliances within ±0.5~1cm meets the specified standards.
[0054] In one embodiment, please refer to the following: Figure 3 and Figure 4 The inner liner 10 includes a bottom wall 11 and a side wall 12 defining a cooking cavity 10a. The bottom wall 11 is located on the side of the first region 10a1 opposite to the top. The electrode assembly 20 may include a second electrode assembly 22 having a third electrode 221 and a fourth electrode 222, which are alternately arranged on the bottom wall 11. The first electrode 211 and the second electrode 212 are located on the outer periphery of the second electrode assembly 22 on the side wall 12, wherein the side wall 12 is at least partially located in the second region 10a2.
[0055] The second electrode assembly 22 is disposed on the bottom wall 11, which can further increase the electrode area in the first region 10a1, thereby further improving the heating power in the first region 10a1 and ensuring the consistency of the temperature rise of the food in the first region 10a1 and the second region 10a2.
[0056] For example, the first electrode 211 can be connected to the same circuit as the third electrode 221, and the second electrode 212 and the fourth electrode 222 can be connected to the same circuit. That is, the first electrode 211 and the third electrode 221 can be connected to the same power supply so that the voltage of the first electrode 211 and the third electrode 221 is the same. When the second electrode 212 and the fourth electrode 222 are connected to the same power supply so that the voltage of the second electrode 212 and the fourth electrode 222 is the same, this setting can improve the temperature uniformity of the first region 10a1 and the second region 10a2 without setting a complex circuit strategy or power supply strategy (i.e., cooking control method), so as to achieve the purpose of uniform heating of the food in the cooking pot.
[0057] The structure of the second electrode assembly 22 is not limited; for example, please refer to [reference needed]. Figure 4 The third electrode 221 and the fourth electrode 222 can be in a ring structure. The third electrode 221 and the fourth electrode 222 are alternately arranged on the bottom wall 11. Specifically, the center of the third electrode 221 and the center of the fourth electrode 222 overlaps with the center of the bottom wall 11 in the height direction, and their projected areas in the height direction do not overlap, thus presenting an alternating arrangement.
[0058] For the third electrode 221 and the fourth electrode 222 of the annular structure, the direction of the electric field formed between the third electrode 221 and the fourth electrode 222 is perpendicular to the height direction, so as to achieve better heating uniformity in the horizontal direction.
[0059] Exemplarily, the bottom wall 11 may include a central region and an outer region surrounding the central region. The third electrode 221 and the fourth electrode 222 are located in the outer region surrounding the central region, that is, the third electrode 221 and the fourth electrode 222 avoid the central region to prevent heat accumulation in the central region and thus avoid food burning. Specifically, the centers of the third electrode 221 and the fourth electrode 222 overlap on the projection plane of the bottom wall 11 along the height direction, and their centers are located within the central region. This ensures that the distance between each point of the third electrode 221 and the fourth electrode 222 is the same, thereby ensuring that the electric field strength between each point is the same. It should be noted that in some embodiments, the center of the electrode in the electrode assembly refers to the geometric center, also known as the centroid or centroid. In this case, the centers of the third electrode 221 and the fourth electrode 222 overlap on the projection plane and are located within the central region of the inner pot. This ensures that the various regions of the bottom of the inner pot are heated evenly with small differences in the heating rate, avoiding excessive heat accumulation in the center of the bottom of the inner pot and thus preventing localized burning, which would affect the cooking quality.
[0060] The number of third electrodes 221 and fourth electrodes 222 is unlimited. For example, the second electrode assembly 22 may have multiple electrodes, with each fourth electrode 222 corresponding to one of the third electrodes 221. That is, there are multiple third electrodes 221 and multiple fourth electrodes 222. There is an equal spacing between the circumferential edges of adjacent third electrodes 221 and fourth electrodes 222. In other words, the spacing between the third electrodes 221 and fourth electrodes 222 in each second electrode assembly 22 is equal, so that each second electrode assembly 22 generates the same electric field intensity. Furthermore, the spacing between two adjacent second electrode assemblies 22 is equal, so that the electric field formed by each second electrode assembly 22 is uniformly distributed within the second region 10a2 and has a consistent electric field intensity.
[0061] Figure 4 The second electrode assembly 22 includes two third electrodes 221 and two fourth electrodes 222. Exemplarily, the circumferential edges of adjacent third electrodes 221 and fourth electrodes 222 are equally spaced, which can solve the problem of uneven heating on the circumferential side of the inner pot. Combined with uniform heating at the bottom, it can achieve uniform three-dimensional heating throughout the inner pot's cooking cavity, avoiding situations such as uneven rice or undercooked rice, thereby improving cooking effect and quality.
[0062] In one embodiment, please refer to Figure 5 and Figure 6 The inner liner 10 includes a bottom wall 11 and a side wall 12 defining a cooking cavity 10a. The bottom wall 11 is located on the side of the side wall 12 opposite to the top. The electrode assembly 20 may include a third electrode assembly 23 having a plurality of fifth electrodes 231 and a plurality of sixth electrodes 232. The fifth electrodes 231 and the sixth electrodes 232 are in a ring structure and are alternately arranged on the bottom wall 11 and the side wall 12. The centers of the plurality of fifth electrodes 231 and the centers of the plurality of sixth electrodes 232 overlap in the height direction. There is a spacing between the circumferential edges of adjacent fifth electrodes 231 and sixth electrodes 232 and the spacing is equal, so that the electric field strength between adjacent fifth electrodes 231 and sixth electrodes 232 tends to be consistent everywhere.
[0063] That is, the fifth electrode 231 and the sixth electrode 232 surround the periphery of the cooking cavity 10a and are arranged alternately in sequence so that an electric field is formed between adjacent fifth electrodes 231 and sixth electrodes 232.
[0064] In the description of this application, the references to terms such as "in one embodiment," "in some embodiments," "in other embodiments," "in yet another embodiment," or "exemplary," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this application, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine the different embodiments or examples described in this application, as well as the features of the different embodiments or examples.
[0065] The above description is merely a preferred embodiment of this application and is not intended to limit the application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application are included within the scope of protection of this application.
Claims
1. A cooking liner, characterized by, include: The inner pot has a cooking cavity, the cooking cavity including a first region and a second region arranged along the height direction, the second region being located on one side of the top of the cooking cavity along the height direction, and the first region being located on the other side of the second region away from the top; An electrode assembly for forming an electric field is disposed within the cooking cavity. The electrode assembly includes at least a first electrode assembly having a first electrode and a second electrode. A portion of the electrode assembly is located in the first region, and another portion is located in the second region. The electrode area of the electrode assembly located in the first region is not less than the electrode area of the electrode assembly located in the second region.
2. The cooking liner of claim 1, wherein, The first electrode and the second electrode are arranged opposite each other along the circumference of the cooking cavity, and / or the direction of the electric field formed between the first electrode and the second electrode is perpendicular to the height direction; The dimension of the first region along the height direction is smaller than the dimension of the second region along the height direction.
3. The cooking liner of claim 1, wherein, The electrode assembly includes a first electrode assembly having a first electrode and a second electrode, the first electrode and the second electrode being respectively disposed on opposite sides of the cooking cavity, a portion of the first electrode and a portion of the second electrode being located in the first region, and another portion of the first electrode and another portion of the second electrode being located in the second region.
4. The cooking liner of claim 3, wherein, There are multiple first electrodes, and each second electrode corresponds to one of the first electrodes. The first electrodes and the second electrodes are alternately arranged along the circumference of the cooking cavity.
5. The cooking liner of claim 4, wherein, Multiple first electrodes are connected to the same circuit, and multiple second electrodes are connected to the same circuit, wherein the spacing between adjacent first electrodes along the circumferential direction of the cooking cavity is equal.
6. The cooking liner of claim 1, wherein, The electric field strength between adjacent first and second electrodes satisfies the following relationship: |E1-E2| / d1≥10V / cm, where E1 is the voltage of the first electrode, E2 is the voltage of the second electrode, and d1 is the average straight-line distance between adjacent first and second electrodes.
7. The cooking liner according to any one of claims 1 to 6, characterized in that, The first electrode and the second electrode have a plate-like structure. The first electrode has a first width dimension along the circumference of the cooking cavity, and the second electrode has a second width dimension along the circumference of the cooking cavity. Both the first width dimension and the second width dimension gradually decrease along the height direction towards the top.
8. The cooking liner according to any one of claims 1 to 6, characterized in that, The first electrode and the second electrode include a ring structure, the centers of the first electrode and the second electrode overlap along the height direction, and there is an equal spacing between the circumferential edges of adjacent first electrodes and second electrodes.
9. The cooking liner of any one of claims 1 to 6, wherein, The inner liner includes a bottom wall and a side wall defining the cooking cavity. The bottom wall is located in the first region and on the side opposite to the top. The electrode assembly includes a second electrode assembly having a third electrode and a fourth electrode, which are alternately disposed on the bottom wall. The first electrode and the second electrode are located on the side wall on the outer periphery of the second electrode assembly, wherein the side wall is at least partially located in the second region.
10. The cooking liner of claim 9, wherein, The first electrode and the third electrode are electrically connected, and the second electrode and the fourth electrode are electrically connected; And / or, the third electrode and the fourth electrode are in a ring structure, and the direction of the electric field formed between the third electrode and the fourth electrode is perpendicular to the height direction; And / or, the bottom wall body includes a central region and an outer region located around the central region, the third electrode and the fourth electrode are disposed in the outer region around the central region, the center of the third electrode and the center of the fourth electrode overlap on the projection plane of the bottom wall body along the height direction, and are located within the central region; And / or, the number of the second electrode assemblies is multiple, the fourth electrode corresponds one-to-one with the third electrode, there is a spacing between the circumferential edges of adjacent third electrodes and fourth electrodes and the spacing is equal, and the spacing between two adjacent second electrode assemblies is equal.
11. The cooking liner according to any one of claims 1 to 6, wherein, The inner liner includes a bottom wall and a side wall defining the cooking cavity, the bottom wall being located on the side of the side wall opposite to the top, and the electrode assembly including a third electrode assembly having a plurality of fifth electrodes and a plurality of sixth electrodes.
12. The cooking liner of claim 11, wherein, The fifth electrode and the sixth electrode are arranged in a ring structure and are alternately arranged on the bottom wall and the side wall. The centers of the plurality of fifth electrodes and the centers of the plurality of sixth electrodes overlap in the height direction. There is an equal spacing between the circumferential edges of adjacent fifth electrodes and sixth electrodes.
13. A cooking appliance characterized by, Includes the cooking inner pot as described in any one of claims 1 to 12.