Cooking electric chafing dish

Abstract

The application relates to the technical field of kitchen appliances, and provides a cooking electric chafing dish, which comprises a base, a heating structure arranged on the base, a pot body supported on the base and a partition ring, the pot body is arranged above the heating structure, the heating structure comprises an inner heating disc and an outer heating disc arranged on the outer circumferential side of the inner heating disc, and the partition ring is detachably arranged in a pot cavity of the pot body so that the pot cavity has a first state and a second state. In the first state, the partition ring is arranged in the pot cavity and divides the pot cavity into a first cavity and a second cavity arranged on the outer circumferential side of the first cavity, the first cavity is located in the partition ring and corresponds to the inner heating disc, and the second cavity is located outside the partition ring and corresponds to the outer heating disc. In the second state, the partition ring is separated from the pot body. The cooking electric chafing dish provided by the application improves the utilization rate of the pot body on the basis of reducing the production cost.

Description

Technical Field

[0001] This application relates to the field of kitchen appliances technology, and in particular to an electric hot pot for cooking. Background Technology

[0002] Currently, for some electric hot pots, the pot body is usually divided into an outer pot and an inner pot located inside the outer pot, and there is a cooking cavity between the inner pot and the outer pot. Both the inner pot cavity and the cooking cavity can be used for cooking food.

[0003] In related technologies, the inner and outer pots are mostly die-cast as a single piece, resulting in high production costs. Therefore, some manufacturers separate the inner and outer pots and allow for detachable connection to alleviate the production difficulties associated with die-casting them as a single piece. For example, Chinese patent application number "2024206499775," entitled "A Quick Electric Hot Pot with a Detachable Pot Body," primarily discloses a method for detachable connection between the inner and outer pots, specifically, as follows... Figure 1 As shown, an inner ring wall 5 protrudes inside the outer pot body 2, and an outward-curving edge 6 is provided at the opening of the inner pot body 1. The inner pot body 1 is assembled by overlapping and pressing the outward-curving edge 6 with the inner ring wall 5. If the inner pot body 1 is removed, the space enclosed by the inner ring wall 5 cannot be used for cooking, reducing the utilization rate of the pot body. Utility Model Content

[0004] Therefore, it is necessary to provide a cooking electric hot pot that can improve the utilization rate of the pot body while reducing production costs.

[0005] An electric hot pot includes a base, a heating structure, and a pot body. The heating structure is disposed on the base, and the pot body is supported on the base and disposed above the heating structure. The heating structure includes an inner heating plate and an outer heating plate surrounding the outer periphery of the inner heating plate. The electric hot pot also includes a partition ring, which is detachably disposed within the pot cavity of the pot body to allow the pot cavity to have a first state and a second state.

[0006] In the first state, the spacer ring is placed inside the pot cavity and divides the pot cavity into a first cavity and a second cavity surrounding the outer periphery of the first cavity. The first cavity is located inside the spacer ring and corresponds to the inner heating plate, and the second cavity is located outside the spacer ring and corresponds to the outer heating plate. In the second state, the spacer ring is separated from the pot body.

[0007] Understandably, the detachable design of the partition ring relative to the pot body allows for changes in the pot's usage state. In the first state, the first and second cavities correspond to the inner and outer heating plates, respectively, enabling independent heating control of the two cavities. In the second state, since the partition ring is removed, the inner and outer heating plates can simultaneously heat the food within the pot cavity. That is, the pot cavity is heated as a complete space by the inner and / or outer heating plates, eliminating the issue of isolated or discarded areas, thus improving the utilization rate of the pot cavity.

[0008] In some embodiments, the volume of the first cavity is smaller than the volume of the second cavity.

[0009] This design allows the water in the first chamber to heat up quickly under the heating action of the internal heating plate, thus improving heating efficiency.

[0010] In some embodiments, the bottom of the pot body is provided with an assembly part that protrudes upward in a vertical direction, the inner heating plate is attached to the outer bottom wall of the assembly part, and the assembly part is adapted to the spacer ring for positioning the spacer ring.

[0011] In other words, the assembly part plays a limiting and positioning role in the installation of the spacer ring, ensuring that the spacer ring corresponds to the inner heating plate, so as to promote the full transfer of heat from the inner heating plate to the first cavity and improve heating efficiency.

[0012] In some embodiments, the spacer ring can be fitted onto the outside of the assembly.

[0013] This design facilitates the placement and removal of items around the spacer and provides uniform restraint around the spacer's circumference.

[0014] In some embodiments, the outer bottom wall of the pot body is recessed upward at the assembly portion to form a cavity, and at least a portion of the inner heating plate is accommodated in the cavity.

[0015] This setup is equivalent to assembling the inner heating plate and the outer heating plate separately along the vertical direction, reducing heating interference between the inner and outer heating plates.

[0016] In some embodiments, the spacer includes an assembly section and a retaining section connected together, wherein the inner diameter of the assembly section is larger than the inner diameter of the retaining section; in the first state, the end of the assembly section away from the retaining section is placed on the inner bottom wall of the pot body, and in the vertical direction, the projected outer contour of the inner heating plate is located between the projected inner contour of the assembly section and the projected inner contour of the retaining section.

[0017] This design, while maintaining a small volume of the first cavity, ensures that the inner heating plate is located within the first cavity, allowing the heat from the inner heating plate to be fully applied to the food inside the first cavity, thus improving heating efficiency.

[0018] In some embodiments, the spacer further includes a transition section connecting the assembly section and the enclosure section, the transition section being progressively wider from the enclosure section toward the assembly section along the axial direction of the spacer.

[0019] Understandably, by using the gradually expanding transition section, a smooth transition area is formed between the assembly section and the enclosure section, which not only facilitates cleaning but also enhances the structural strength of the spacer ring itself.

[0020] In some embodiments, the bottom of the pot body is provided with an assembly portion for positioning the spacer ring, and the assembly portion does not protrude beyond half of the transition section in the vertical direction.

[0021] This design ensures that the protrusion height of the assembly part is as small as possible, reducing the space occupied in the height of the pot body.

[0022] In some embodiments, along the axial direction of the spacer, the length of the assembly section is H1, the length of the enclosure section is H2, and the length of the transition section is H3, then the following conditions are met: .

[0023] This setup ensures that the overall length of the transition and assembly sections is relatively small, keeping the volume of the first chamber as small as possible to allow for rapid boiling and shorten the waiting time.

[0024] In some embodiments, the length H3 of the transition section and the length H1 of the assembly section satisfy the following: .

[0025] This setup ensures stable placement of the spacer ring while reducing the length of the assembly section, thereby minimizing the impact of the assembly section on the volume of the first chamber and facilitating rapid boiling.

[0026] In some embodiments, the spacer has an inner wall and an outer wall, with a cavity provided between the inner wall and the outer wall.

[0027] This design allows for better insulation by utilizing the sandwich cavity, preventing heat from dissipating from the first cavity to the second cavity in the first state, thus facilitating rapid boiling within the first cavity.

[0028] In some embodiments, the base includes a base body and an elastic element; the inner heating plate has a first mounting portion protruding from the side opposite to the pot body, the base body has a second mounting portion, the first mounting portion and the second mounting portion are slidably connected, and the elastic element is pressed between the base body and the inner heating plate.

[0029] In other words, the elastic element is used to apply an upward force in the vertical direction to the inner heating plate, ensuring that the inner heating plate can fit tightly against the outer bottom wall of the pot, thereby improving heat transfer efficiency.

[0030] In some embodiments, the outer heating plate is fixed to the base body; the edge of the inner heating plate is provided with a limiting part, which can abut against the side of the outer heating plate away from the pot body.

[0031] In other words, by using the contacting and engaging mechanism between the limiting part and the outer heating plate, the movement of the inner heating plate vertically upward can be limited, thereby improving assembly safety.

[0032] In some embodiments, the maximum heating power of the inner heating element is greater than the maximum heating power of the outer heating element.

[0033] This setup ensures that, in the initial heating phase, the internal heating plate heats the water in the first chamber to a rapid boil at maximum heating power, further improving the heating efficiency of the first chamber.

[0034] In some embodiments, there is a heat insulation gap between the outer heating plate and the inner heating plate.

[0035] In other words, the heat insulation gap can alleviate the problem of heat diffusion from the inner heating plate, ensuring that the heat from the inner heating plate is fully applied to the first cavity and improving heating efficiency. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 A cross-sectional view of a conventional electric hot pot;

[0038] Figure 2 A schematic diagram of a cooking electric hot pot provided in the first state according to an embodiment of this application;

[0039] Figure 3 A cross-sectional view of an electric hot pot provided in an embodiment of this application in its first state;

[0040] Figure 4 for Figure 3 A magnified view of a section at point A in the middle;

[0041] Figure 5 A schematic diagram of the pot body in a second state of an electric hot pot provided in an embodiment of this application;

[0042] Figure 6 This is a schematic diagram of the partition ring of an electric hot pot provided in one embodiment of this application;

[0043] Figure 7 A cross-sectional view of the partition ring of an electric hot pot provided in an embodiment of this application;

[0044] Figure 8 This is a schematic diagram of the heating structure installed on the base in an electric hot pot according to an embodiment of this application;

[0045] Figure 9 This is a schematic diagram of the inner heating plate in an electric hot pot provided in one embodiment of this application.

[0046] Attached reference numerals: 1. Inner pot body; 2. Outer pot body; 3. Heating plate; 5. Inner ring wall; 6. Outer flange;

[0047] 10. Base; 11. Base body; 12. Elastic element; 13. Reflector; 14. Second mounting part; 20. Heating structure; 21. External heating plate; 22. Internal heating plate; 30. Pot body; 31. Assembly part; 40. Spacer ring; 41. Assembly section; 42. Enclosure section; 43. Transition section; 60. Temperature control structure; 61. First temperature control structure; 62. Second temperature control structure; 201. Plate body; 202. Heat-conducting plate; 203. Heating tube; 204. Heat insulation gap; 211. Third mounting part; 221. First mounting part; 222. Limiting part; 301. Pot cavity; 302. Recessed cavity; 401. Interlayer cavity; 501. Insertion hole; 3011. First cavity; 3012. Second cavity. Detailed Implementation

[0048] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0049] It should be noted that when a component is referred to as being "fixed to" or "attached to" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0050] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0051] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0052] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0053] In related technologies, the pot body of an electric hot pot is typically divided into an outer pot and an inner pot located within the outer pot, with a cooking cavity between the inner and outer pots. Both the inner pot's cavity and the cooking cavity can be used for cooking food. The inner pot can be integrally formed with the outer pot or detachably connected to it. When the inner pot (i.e., Figure 1 The inner pot body 1) and the outer pot (i.e. Figure 1 When the outer pot body 2 is detachably connected, a raised inner ring wall 5 is usually provided inside the outer pot body 2, and an outward flange 6 is provided at the opening of the inner pot body 1, so that the outer flange 6 overlaps and presses against the extended end of the inner ring wall 5. Although both of the above methods can separate the pot body into two independent cavities, there are still drawbacks in use.

[0054] For example, in cases where the inner and outer pots are molded as a single piece, die casting is often used, followed by polishing and other processes, resulting in high production costs. On the other hand, in cases where the inner and outer pots are detachable, such as... Figure 1 As shown, the inner ring wall 5 protrudes from the outer pot body 2 to support the inner pot body 1. When the inner pot body 1 is removed, the space enclosed by the inner ring wall 5 cannot be used for cooking, reducing the utilization rate of the pot. Moreover, in the case of detachment, in order to ensure sufficient heat transfer between the inner pot body 1 and the heating plate 3, the inner ring wall 5 is provided with a through hole to facilitate direct contact between the inner pot body 1 and the heating plate 3. At this time, it is necessary to consider the safety of the space enclosed by the inner ring wall 5 to prevent oil and other contaminants from falling onto the heating plate 3 after the inner pot body 1 is removed.

[0055] To address this, one embodiment of this application provides an electric hot pot that, on the one hand, reduces production costs and increases the utilization rate of the pot body; on the other hand, it alleviates contamination of the heating structure during cooking and is easier to clean. The specific structure of this electric hot pot is described in detail below.

[0056] Please see Figure 2 , Figure 3 and Figure 5 In some embodiments, the electric hot pot includes a base 10, a heating structure 20, and a pot body 30. The heating structure 20 is disposed on the base 10, and the pot body 30 is supported on the base 10 and positioned above the heating structure 20. The heating structure 20 is used to heat the pot body 30 to cook the food. The heating structure 20 includes an inner heating plate 22 and an outer heating plate 21 surrounding the outer periphery of the inner heating plate 22. The electric hot pot also includes a partition ring 40, which is detachably disposed within the pot cavity 301 of the pot body 30, allowing the pot cavity 301 to have a first state and a second state. In the first state, the partition ring 40 is disposed within the pot cavity 301, dividing the pot cavity 301 into a first cavity 3011 and a second cavity 3012 surrounding the outer periphery of the first cavity 3011. The first cavity 3011 corresponds to the inner heating plate 22, and the second cavity 3012 corresponds to the outer heating plate 21. In the second state, the partition ring 40 is separated from the pot body 30. The first cavity 3011 is located inside the partition ring 40, that is, the partition ring 40 surrounds the first cavity 3011; and the second cavity 3012 is located outside the partition ring 40, that is, the inner wall of the pot body 30 and the outer wall of the partition ring 40 surround the second cavity 3012.

[0057] In other words, the electric hot pot in this embodiment can utilize the detachable arrangement of the partition ring 40 relative to the pot body 30 to change the usage state of the pot body 30. For example... Figure 2 and Figure 3As shown, in the first state, the first cavity 3011 and the second cavity 3012 correspond to the inner heating plate 22 and the outer heating plate 21, respectively, realizing independent heating control of the two cavities. Figure 5 As shown, in the second state, since the partition ring 40 is removed, the inner heating plate 22 and the outer heating plate 21 can simultaneously heat the food inside the pot cavity 301. That is, the pot cavity 301 is heated as a complete space by the inner heating plate 22 and / or the outer heating plate 21, and there is no problem of certain areas being isolated or discarded, thereby improving the utilization rate of the pot cavity 301. Moreover, it is precisely because of the separable setting of the partition ring 40 relative to the pot body 30 that the partition ring 40 and the pot body 30 can be manufactured separately, and there is no need to add other structures inside the pot body 30 to divide a space specifically for placing the partition ring 40, thereby simplifying the manufacturing process of the pot body 30 and reducing production costs. At the same time, such a separable setting reduces the cleaning dead corners inside the pot body 30, and the pot body 30 and the partition ring 40 can be cleaned separately, which is more conducive to cleaning. Furthermore, it is precisely because of the separation of the pot cavity 301 by the partition ring 40 that the pot body 30 always remains above the heating structure 20 in different states. Whether it is the inner heating plate 22 or the outer heating plate 21, they only need to conduct heat fully with the pot body 30 to meet the heating needs of different cavities, reducing the contamination of the heating structure 20 during cooking, especially reducing the contamination of the inner heating plate 22.

[0058] like Figure 2 , Figure 3 and Figure 6 As shown, the partition ring 40 has an annular cross-section, and both ends of the partition ring 40 are open along its own axial direction. Therefore, when the partition ring 40 is placed inside the pot cavity 301, the lower end of the partition ring 40 contacts the inner bottom wall of the pot body 30, thereby separating the first cavity 3011 and the second cavity 3012. Therefore, it is precisely because of the specific arrangement of the partition ring 40 that when it is removed, the pot cavity 301 returns to its original state, satisfying the requirement that the pot cavity 301 function as a complete space for cooking.

[0059] Please see Figure 2 and Figure 3 Furthermore, the volume of the first cavity 3011 is smaller than that of the second cavity 3012, which facilitates the rapid heating of the water in the first cavity 3011 under the heating action of the inner heating plate 22, thereby improving the heating efficiency.

[0060] In the first state, both the first cavity 3011 and the second cavity 3012 are filled with water. The inner heating plate 22 and the outer heating plate 21 can simultaneously heat the first cavity 3011 and the second cavity 3012 respectively. Because the first cavity 3011 is smaller, the water in it boils quickly under the heating action of the inner heating plate 22 during the initial heating phase, facilitating scalding for the user. It eliminates the need to wait for the water in the entire pot cavity 301 to boil, thus shortening the user's waiting time and improving the user experience. When the water in the second cavity 3012 boils, the user can remove the partition ring 40, allowing the first cavity 3011 and the second cavity 3012 to form a larger cavity, namely the pot cavity 301. At this point, the pot cavity 301 is in the second state, which can accommodate multiple people cooking simultaneously. In other words, by inserting or removing the partition ring 40 into the pot cavity 301, users can quickly start cooking in the early stages. Once the entire pot cavity 301 is boiling, the partition ring 40 can be removed to make full use of the space in the entire pot cavity 301, allowing multiple people to cook at the same time.

[0061] Please continue reading. Figure 2 and Figure 3 Furthermore, the maximum heating power of the inner heating plate 22 is greater than that of the outer heating plate 21. This configuration ensures that in the initial heating stage, especially when the water in the first cavity 3011 has not yet boiled, the inner heating plate 22 can heat quickly with its maximum heating power. In other words, the smaller volume of the first cavity 3011 combined with the greater heating power of the inner heating plate 22 can achieve faster boiling.

[0062] like Figure 2 , Figure 3 and Figure 5 As shown, during use, when heating the water in the first cavity 3011 via the inner heating plate 22, the inner heating plate can be adjusted to its maximum heating power, while the outer heating plate 21 can be adjusted to its low power heating power, thus preventing the overall power of the electric hot pot from becoming excessive. Once the water in the first cavity 3011 boils under the heating of the inner heating plate 22, the heating power of the outer heating plate 21 can be increased, causing the water in the second cavity 3012 to boil rapidly. At this point, the power of the inner heating plate 22 can be reduced accordingly to maintain safety. Then, the partition ring 40 can be removed, allowing the water in the first cavity 3011 and the water in the second cavity 3012 to mix, making the pot cavity 301 a complete space for scalding, thus switching to the second state. During use, the inner heating plate 22 and the outer heating plate 21 can be selectively turned off according to actual heating needs, alleviating splashing caused by boiling water in the pot cavity 301 or overcooking of food in the pot cavity 301.

[0063] It should be added that the electric hot pot can maintain safety even when both the inner heating plate 22 and the outer heating plate 21 are heated at high power.

[0064] In some specific embodiments, the maximum heating power of the internal heating plate 22 is between 1000W and 2200W. While maintaining safety, the maximum heating power of the internal heating plate 22 is maximized to achieve a balance between a smaller size and higher heating power, thereby improving heating efficiency. For example, the maximum heating power of the internal heating plate 22 can be 1000W, 1500W, 1800W, 2000W, or 2200W, etc.

[0065] Please see Figures 3 to 5 In some embodiments, the bottom of the pot body 30 is provided with an assembly portion 31 that protrudes vertically upward. The inner heating plate 22 is attached to the outer bottom wall of the assembly portion 31 of the pot body 30. The assembly portion 31 is adapted to the spacer ring 40 and is used to position the spacer ring 40. That is, the projection of the inner heating plate 22 in the vertical direction coincides with the projection of the assembly portion 31 in the vertical direction. Alternatively, the outer contour of the projection of the assembly portion 31 in the vertical direction may be located outside the outer contour of the projection of the inner heating plate 22 in the vertical direction.

[0066] It should be noted that the vertical direction is... Figure 3 The up and down directions in the middle.

[0067] Understandably, the mounting portion 31 at the bottom of the pot body 30 serves to limit and position the installation of the spacer ring 40. This design not only ensures the stability of the spacer ring 40 within the pot body 30 but also reduces its wobbling or shifting under external forces. This improves the alignment accuracy between the spacer ring 40 and the inner heating plate 22, allowing the heat from the inner heating plate 22 to be fully transferred to the first cavity 3011 enclosed by the spacer ring 40, thereby increasing the heating efficiency of the first cavity 3011. Furthermore, because the upper surface of the inner heating plate 22 can adhere to the outer bottom wall of the pot body 30 at the mounting portion 31, it facilitates heat conduction and improves heat transfer efficiency.

[0068] like Figure 3 and Figure 4 As shown, the spacer ring 40 can be fitted onto the outside of the assembly portion 31. Because both ends of the spacer ring 40 are open along its axial direction, the fitting of the spacer ring 40 relative to the assembly portion 31 satisfies the positional constraint of the spacer ring 40 and ensures that the spacer ring 40 is uniformly restrained in the circumferential direction. At this time, the inner diameter of the spacer ring 40 can be slightly larger than the outer diameter of the assembly portion 31, so that there is a small gap between the spacer ring 40 and the assembly portion 31, reducing wear between them while satisfying the restraint function.

[0069] Please continue reading. Figures 3 to 5In some specific embodiments, the bottom wall of the pot body 30 protrudes vertically upwards in the middle to form an assembly part 31, that is, the assembly part 31 is set in the form of a boss. The assembly part 31 can be formed on the pot body 30 by integral stamping. At this time, the outer bottom wall of the pot body 30 is recessed upwards at the assembly part 31 to form a cavity 302, and at least a portion of the inner heating plate 22 is accommodated in the cavity 302. This arrangement is equivalent to separating the inner heating plate 22 and the outer heating plate 21 vertically, reducing heating interference between the inner heating plate 22 and the outer heating plate 21. In particular, in the first state, the heat generated by the inner heating plate 22 can be reduced, so that the heat of the inner heating plate 22 can be transferred as fully as possible to the food in the first cavity 3011 through the assembly part 31, satisfying rapid boiling. The outer heating plate 21 is attached to the portion of the outer bottom wall of the pot body 30 located on the outer periphery of the cavity 302.

[0070] Furthermore, the outer wall of the assembly part 31 is inclined downwards from the inside to the outside. This arrangement guides the fitting of the spacer ring 40 relative to the assembly part 31, facilitating rapid positioning. In addition, this arrangement reduces stress concentration and minimizes cleaning dead zones during subsequent cleaning.

[0071] The bottom opening of the spacer ring 40 has a rounded corner transition, which facilitates its adaptation to the assembly part 31.

[0072] It should be added that the vertical protrusion height of the assembly part 31 should not be too small or too large. If it is too small, it may weaken the positioning effect of the spacer ring 40, causing the spacer ring 40 to shift under the action of external force and affecting the corresponding range with the inner heating plate 22; of course, if it is too large, it will cause the bottom height of the pot body 30 to change too much, which will reduce the usable volume of the pot cavity 301 and is not conducive to large-capacity use.

[0073] Alternatively, the assembly part 31 can also be an annular rib protruding from the inner bottom wall of the pot body 30. In this case, the spacer 40 can be fitted onto the outside of the assembly part 31, or the bottom of the spacer 40 can be inserted into the assembly part 31 to form a groove. As long as the assembly part 31 can limit and position the assembly of the spacer 40, it is acceptable.

[0074] Please see Figures 3 to 7 In some embodiments, the spacer 40 includes an assembly section 41 and a retaining section 42 connected together, with the inner diameter of the assembly section 41 being larger than the inner diameter of the retaining section 42. In a first state, the end of the assembly section 41 facing away from the retaining section 42 can be placed on the inner bottom wall of the pot body 30, and in the vertical direction, the projected outer contour of the inner heating plate 22 is located between the projected inner contour of the assembly section 41 and the projected inner contour of the retaining section 42; that is, the projected outer contour of the inner heating plate 22 is located inside the projected inner contour of the assembly section 41, and the projected outer contour of the inner heating plate 22 is located outside the projected inner contour of the retaining section 42.

[0075] Understandably, because the inner diameter of the assembly section 41 is larger than the inner diameter of the enclosure section 42, the enclosure section 42 can maintain the smaller volume of the first cavity 3011, further improving heating efficiency. Simultaneously, by utilizing the relationship between the projected contours of the inner heating plate 22, the assembly section 41, and the enclosure section 42, while maintaining the smaller volume of the first cavity 3011, the inner heating plate 22 is ensured to be located within the first cavity 3011, reducing the heat load per unit area of ​​the inner heating plate 22, improving the heat transfer efficiency between the inner heating plate 22 and the pot body 30, and ensuring that the heat from the inner heating plate 22 can fully act on the food inside the first cavity 3011, thus improving heating efficiency.

[0076] The assembly section 41 and the enclosure section 42 are smoothly connected to ensure the surface smoothness of the spacer ring 40, reduce the problem of dirt accumulation, and facilitate cleaning.

[0077] In actual use, the end of the assembly section 41 that is away from the enclosure section 42 is fitted onto the outside of the assembly part 31.

[0078] like Figure 3 and Figure 7 As shown, further, along the axial direction of the spacer 40, the length of the assembly section 41 is H1, and the length of the enclosure section 42 is H2, thus satisfying... This design results in a shorter assembly section 41, particularly occupying a smaller portion of the entire spacer ring 40, thus further reducing the space of the first cavity 3011. If the assembly section 41 were too long, the cross-section of the portion of the first cavity 3011 corresponding to the assembly section 41 would increase, leading to a larger capacity, which would be detrimental to rapid boiling. Therefore, by limiting the length of the assembly section 41, while maintaining stable positioning with the assembly part 31, the volume of the first cavity 3011 is kept small, which is conducive to rapid boiling.

[0079] It should be added that when the spacer ring 40 is placed inside the pot body 30, the axis of the spacer ring 40 is in the vertical direction, and the aforementioned length is the height.

[0080] Please continue reading. Figure 3 , Figure 5 , Figure 6 and Figure 7 In some specific embodiments, the spacer 40 further includes a transition section 43 connecting the assembly section 41 and the enclosure section 42. Along the axial direction of the spacer 40, the transition section 43 gradually widens from the enclosure section 42 toward the assembly section 41.

[0081] Understandably, because the inner diameter of assembly section 41 is larger than that of enclosure section 42, a step is formed between them. The gradually widening transition section 43 creates a smooth transition area between them, preventing cleaning difficulties caused by the step. Simultaneously, the transition section 43 enhances the structural strength of the spacer ring 40, helping to reduce stress concentration. The transition section 43 has rounded corners with both assembly section 41 and enclosure section 42.

[0082] like Figure 3 and Figure 7 As shown, further, along the axial direction of the spacer 40, the length of the transition section 43 is H3, then... ,and In other words, the sum of the lengths of the transition section 43 and the assembly section 41 is less than half the length of the enclosure section 42. Understandably, it is precisely because the transition section 43 is gradually expanded from bottom to top that its cross-section is larger than that of the enclosure section 42. Therefore, this design ensures that the overall length occupied by the transition section 43 and the assembly section 41 is relatively small, minimizing the volume of the first cavity 3011 and allowing for rapid boiling.

[0083] Furthermore, the lengths of transition section 43 and assembly section 41 also satisfy the following: That is, the length of the assembly section 41 is less than half the length of the transition section 43. This setting further limits the length of the assembly section 41, ensuring that while the inner heating plate 22 and the first cavity 3011 are fully aligned, the assembly section 41 has a smaller length, reducing its impact on the volume of the first cavity 3011 and making it more conducive to rapid boiling.

[0084] like Figure 3 and Figure 7 As shown, in some embodiments, the bottom of the pot body 30 is provided with an assembly portion 31 for positioning the spacer ring 40. In the vertical direction, the assembly portion 31 does not protrude beyond half of the transition section 43. Because the assembly section 41 and the assembly portion 31 are adapted to each other, this arrangement ensures that the protrusion height of the assembly portion 31 is as small as possible, reducing the space occupied in the height of the pot body 30. In some specific embodiments, based on the rounded transition between the transition section 43 and the assembly section 41, the assembly portion 31 does not protrude beyond the portion where the rounded corner is tangent to the transition section 43.

[0085] Furthermore, the angle between the inner wall of the transition section 43 and the inner wall of the enclosure section 42 is between 110° and 130°. This arrangement ensures that the inclination angle of the transition section 43 is relatively gentle, further reducing the length of the transition section 43 in the vertical direction, and thus reducing the protrusion height of the assembly part 31. For example, the angle between the inner wall of the transition section 43 and the inner wall of the enclosure section 42 can be 110°, 115°, 120°, 124°, 130°, etc.

[0086] It should be added that the shape of the inner wall of the partition ring 40 is adapted to the shape of its outer wall. This design keeps the thickness of the partition ring 40 relatively consistent throughout, enhancing the overall structural stability of the partition ring 40 and reducing stress concentration caused by irregular shape. Furthermore, this design, while maintaining a relatively small volume of the first cavity 3011, ensures a larger cross-section of the second cavity 3012, increasing its volume and facilitating the storage of more food ingredients. The partition ring 40 has a circular cross-section.

[0087] In some embodiments, the inner diameter of the partition ring 40 is between 80mm and 150mm. It is understood that the inner diameter of the partition ring 40 should not be too large or too small. If the inner diameter of the partition ring 40 is too large, the volume of the first cavity 3011 separated by the partition ring 40 will increase, which is not conducive to rapid boiling; conversely, if the inner diameter of the partition ring 40 is too small, the volume of the first cavity 3011 will be too small, resulting in a small cooking volume, which is not conducive to the user's cooking of food. Therefore, by limiting the inner diameter of the partition ring 40, heating efficiency can be improved while facilitating cooking, achieving the purpose of boiling and cooking in a shorter time, for example, maintaining a "second-cooking" effect within 5 minutes as much as possible. In some specific embodiments, the inner diameter of the partition ring 40 can be 80mm, 100mm, 120mm, 140mm, or 150mm.

[0088] Please see Figure 3 , Figure 4 and Figure 7 In some embodiments, the spacer 40 has an inner sidewall and an outer sidewall, and a cavity 401 is provided between the inner sidewall and the outer sidewall. That is, the spacer 40 is hollow. This arrangement allows the cavity 401 to provide better heat insulation, preventing heat from the first cavity 3011 from dissipating to the second cavity 3012 in the first state, and facilitating rapid heating and boiling within the first cavity 3011.

[0089] Of course, spacer 40 can also be made of solid material.

[0090] Please see Figure 3 , Figure 4 , Figure 8 and Figure 9In some embodiments, the base 10 includes a base body 11 and an elastic element 12. The inner heating plate 22 has a first mounting portion 221 protruding from the side opposite to the pot body 30, and the base body 11 has a second mounting portion 14. The first mounting portion 221 and the second mounting portion 14 are slidably connected, and the elastic element 12 is pressed between the base body 11 and the inner heating plate 22. That is, by utilizing the pressing arrangement of the elastic element 12, an upward vertical force can be generated on the inner heating plate 22, causing the inner heating plate 22 to float vertically relative to the base body 11, thereby ensuring that the inner heating plate 22 can fit tightly against the outer bottom wall of the pot body 30, improving heat conduction efficiency. During this process, the cooperation of the first mounting portion 221 and the second mounting portion 14 can guide the floating of the inner heating plate 22, alleviating any deviation during the floating process, and thus allowing it to move more smoothly into the recess 302 at the bottom of the pot body 30.

[0091] like Figure 3 and Figure 4 As shown, in some specific embodiments, one of the first mounting part 221 and the second mounting part 14 is provided with an insertion hole 501, and the other is inserted into the insertion hole 501, thereby playing a guiding role in movement. For example, the first mounting part 221 may be provided with an insertion hole 501, and the second mounting part 14 may be inserted into the insertion hole 501; or vice versa. Both the first mounting part 221 and the second mounting part 14 may be columnar structures. The first mounting part 221 may be integrally formed with the inner heating plate 22, and the second mounting part 14 may be integrally formed with the base body 11. Of course, the first mounting part 221 and the inner heating plate 22, and the second mounting part 14 and the base body 11 may also be fixed by welding or bonding; this is only an example for illustration.

[0092] Furthermore, the elastic element 12 is a spring. The elastic element 12 can be sleeved on the outside of the first mounting part 221 and the second mounting part 14 to support the elastic element 12 and reduce the risk of tilting of the elastic element 12 during the floating process.

[0093] In practical use, a first mounting part 221 and a second mounting part 14 are used as a set of connecting components. Multiple sets of connecting components are provided and arranged at intervals. Each set of connecting components is fitted with a corresponding elastic element 12. In this way, the connection reliability and assembly stability of the internal heating plate 22 can be improved.

[0094] Furthermore, the upper surface of the internal heating plate 22 and the assembly part 31 of the pot body 30 are both curved.

[0095] Please see Figure 3 , Figure 4 and Figure 8In some embodiments, the external heating plate 21 is fixed to the base body 11. Specifically, the external heating plate 21 has a third mounting portion 211 protruding from the side opposite to the pot body 30. The third mounting portion 211 has a threaded hole, allowing a screw to pass through the base body 11 and be threadedly connected to the third mounting portion 211 to secure the external heating plate 21. Furthermore, this arrangement facilitates the disassembly and replacement of the external heating plate 21. It is understandable that the fixed arrangement of the external heating plate 21 helps to more stably support the pot body 30, reducing the shaking of the pot body 30 during use and ensuring the stability of the pot body 30.

[0096] Please continue reading. Figure 3 , Figure 4 and Figure 8 Furthermore, the edge of the inner heating plate 22 is provided with a limiting part 222, which can abut against the side of the outer heating plate 21 away from the pot body 30. That is to say, by using the abutting cooperation between the limiting part 222 and the outer heating plate 21, the upward movement of the inner heating plate 22 in the vertical direction can be limited, reducing the risk of the inner heating plate 22 being pushed out by the elastic member 12; and, it can keep the elastic member 12 in a pressed state at all times, improving assembly safety. At the same time, combined with the aforementioned insertion cooperation between the first mounting part 221 and the second mounting part 14, the downward movement of the inner heating plate 22 in the vertical direction can also be limited.

[0097] Furthermore, the external heating plate 21 includes a plate body 201, a heat-conducting plate 202, and a heating tube 203. The heating tube 203 and the heat-conducting plate 202 are respectively fixed on both sides of the plate body 201 along its thickness direction. The heating tube 203 is used for electrical connection to a power source. The heat generated is conducted through the plate body 201 to the heat-conducting plate 202, and then evenly transferred to the pot body 30 via the heat-conducting plate 202. The heat-conducting plate 202 can be arranged in a U-shape, and the plate body 201 is located in the groove formed by the bending of the heat-conducting plate 202. The limiting part 222 on the internal heating plate 22 can abut against the radially inward edge of the heat-conducting plate 202 to satisfy the movement limitation.

[0098] The internal heating plate 22 also includes a plate body 201, a heat-conducting plate 202, and a heating tube 203. The heat-conducting plate 202 of the internal heating plate 22 can be radially protruding outward to form a limiting part 222. This is only an example.

[0099] like Figure 3 , Figure 4 and Figure 8As shown, in some embodiments, a heat insulation gap 204 is provided between the outer heating plate 21 and the inner heating plate 22. It can be understood that the heat insulation gap 204 effectively prevents heat generated by the inner heating plate 22 from being directly transferred to the outer heating plate 21, ensuring that the heat from the inner heating plate 22 can fully act on the first cavity 3011, further improving heating efficiency. Specifically, when both the outer heating plate 21 and the inner heating plate 22 include a plate body 201, the heat insulation gap 204 is located between the projected outer contour of the plate body 201 of the outer heating plate 21 along the vertical direction and the projected inner contour of the plate body 201 of the inner heating plate 22 along the vertical direction.

[0100] like Figure 3 and Figure 4 As shown, in actual use, the base 10 also includes a reflector 13 connected to the base body 11, and the aforementioned outer heating plate 21 and inner heating plate 22 are both connected to the reflector 13. At this time, the aforementioned second mounting part 14 can be integrally formed with the reflector 13.

[0101] like Figure 3 and Figure 8 As shown, the electric hot pot also includes a temperature control structure 60 connected to the heating structure 20. The temperature control structure 60 is mounted on the base 10 and is used to detect the heating status of the heating structure 20 and provide timely feedback to the controller of the electric hot pot, facilitating timely control of the heating structure 20. The temperature control structure 60 includes a first temperature control structure 61 and a second temperature control structure 62. The first temperature control structure 61 is adapted to the inner heating plate 22, and the second temperature control structure 62 is adapted to the outer heating plate 21. The inner heating plate 22 has a first through hole in its center for installing the first temperature control structure 61. The outer heating plate 21 has a second through hole for installing the second temperature control structure 62.

[0102] When in use, the electric hot pot also includes a lid, which is attached to the rim of the pot body 30.

[0103] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0104] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. An electric hot pot for cooking, characterized in that, The device includes a base (10), a heating structure (20), and a pot body (30). The heating structure (20) is located on the base (10), and the pot body (30) is supported on the base (10) and located above the heating structure (20). The heating structure (20) includes an inner heating plate (22) and an outer heating plate (21) surrounding the outer periphery of the inner heating plate (22). The electric hot pot also includes a partition ring (40), which is separably disposed in the pot cavity (301) of the pot body (30) so that the pot cavity (301) has a first state and a second state. In the first state, the partition ring (40) is placed inside the pot cavity (301) and divides the pot cavity (301) into a first cavity (3011) and a second cavity (3012) surrounding the outer periphery of the first cavity (3011). The first cavity (3011) is located inside the partition ring (40) and corresponds to the inner heating plate (22). The second cavity (3012) is located outside the partition ring (40) and corresponds to the outer heating plate (21). In the second state, the spacer ring (40) is separated from the pot body (30).

2. The electric hot pot according to claim 1, characterized in that, The volume of the first cavity (3011) is smaller than the volume of the second cavity (3012).

3. The electric hot pot according to claim 1, characterized in that, The bottom of the pot body (30) is provided with an assembly part (31) that protrudes upward in the vertical direction. The inner heating plate (22) is attached to the outer bottom wall of the assembly part (31). The assembly part (31) is adapted to the spacer (40) and is used to position the spacer (40).

4. The electric hot pot according to claim 3, characterized in that, The spacer ring (40) can be fitted onto the outside of the assembly part (31).

5. The electric hot pot according to claim 3, characterized in that, The outer bottom wall of the pot body (30) is recessed upward at the assembly part (31) to form a cavity (302), and at least a portion of the inner heating plate (22) is accommodated in the cavity (302).

6. The electric hot pot according to claim 1, characterized in that, The spacer (40) includes an assembly section (41) and a enclosure section (42) connected together, wherein the inner diameter of the assembly section (41) is larger than the inner diameter of the enclosure section (42); In the first state, the end of the assembly section (41) away from the enclosure section (42) is placed on the inner bottom wall of the pot body (30), and in the vertical direction, the projected outer contour of the inner heating plate (22) is located between the projected inner contour of the assembly section (41) and the projected inner contour of the enclosure section (42).

7. The electric hot pot according to claim 6, characterized in that, The spacer (40) also includes a transition section (43) connecting the assembly section (41) and the enclosure section (42), and the transition section (43) is gradually widened from the enclosure section (42) toward the assembly section (41) along the axial direction of the spacer (40).

8. The electric hot pot according to claim 7, characterized in that, The bottom of the pot body (30) is provided with an assembly part (31) for positioning the spacer ring (40), and the assembly part (31) does not protrude beyond half of the transition section (43) in the vertical direction.

9. The electric hot pot according to claim 7, characterized in that, Along the axial direction of the spacer (40), the length of the assembly section (41) is H1, the length of the enclosure section (42) is H2, and the length of the transition section (43) is H3, then the following conditions are met: .

10. The electric hot pot according to claim 9, characterized in that, The length H3 of the transition section (43) and the length H1 of the assembly section (41) satisfy: .

11. The electric hot pot according to claim 1, characterized in that, The spacer (40) has an inner wall and an outer wall, and a cavity (401) is provided between the inner wall and the outer wall.

12. The electric hot pot according to claim 1, characterized in that, The base (10) includes a base body (11) and an elastic element (12); The inner heating plate (22) has a first mounting part (221) protruding on the side away from the pot body (30), and the seat body (11) has a second mounting part (14). The first mounting part (221) and the second mounting part (14) are slidably connected, and the elastic member (12) is pressed between the seat body (11) and the inner heating plate (22).

13. The electric hot pot according to claim 12, characterized in that, The external heating plate (21) is fixed to the base body (11). The inner heating plate (22) has a limiting part (222) at its edge, and the limiting part (222) can abut against the side of the outer heating plate (21) away from the pot body (30).

14. The electric hot pot according to claim 1, characterized in that, The maximum heating power of the inner heating plate (22) is greater than the maximum heating power of the outer heating plate (21).

15. The electric hot pot according to claim 1, characterized in that, There is a heat insulation gap (204) between the external heating plate (21) and the internal heating plate (22).

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