Electric stewpot

Abstract

The electric stewpot comprises an outer pot, a ceramic container and a heating piece, the ceramic container is detachably arranged on the outer pot, the heating piece is used for heating the ceramic container, the ceramic container comprises a main body part, an opening part and a transition part connected with the main body part and the opening part, and an opening edge channel is formed between the transition part and an opening of the outer pot. And the wall thickness of the transition part is greater than that of the main body part. The arrangement of the opening edge channel can facilitate the discharge of gas in the outer pot in the process of placing the ceramic liner into the outer pot, reduce the resistance when the ceramic liner is placed into the outer pot, improve the operation experience of a user, increase the heat loss at the opening in the cooking process, and improve the cooking efficiency. The wall thickness of the transition part is set to be larger than that of the main body part, so that the heat storage capacity of the transition part can be improved, heat loss is slowed down, the temperature in the ceramic liner is kept stable, food in the ceramic liner is heated more uniformly, and the cooking effect is improved.

Description

Technical Field

[0001] This application belongs to the technical field of kitchen utensils, and particularly relates to an electric slow cooker. Background Art

[0002] When making food by stewing, the original flavor and nutritional value of the food can be better maintained. Therefore, slow cookers are favored by more and more people. An electric slow cooker generally uses a heating belt to heat an external aluminum pot, and the aluminum pot is heated and radiates heat to the inner liner placed in the aluminum pot. In order to improve the heating efficiency, the existing assembly method between the aluminum pot and the inner liner of the electric slow cooker is a straight-up-and-down type, and the reserved gap between the aluminum pot and the inner liner is small. Since there is a large amount of air in the aluminum pot, it is relatively difficult to discharge the air at the bottom of the aluminum pot when the inner liner is placed, and a certain sense of resistance will be given to the user when placing the inner liner, affecting the user experience.

[0003] Moreover, the existing inner liner generally realizes the positioning method of top bearing by being carried on the aluminum pot through the outer-turned edge at its top. The position of the outer-turned edge is close to the holding handle of the inner liner, and the inner liner presses on the top of the aluminum pot by its own gravity, and the top gap between the two is sealed. During the operation of the electric slow cooker, the air that is not discharged inside the aluminum pot rises when heated, and the hot air cannot be discharged through the overlapping position of the inner liner and the aluminum pot. The heat accumulates between the top of the inner liner and the aluminum pot, resulting in concentrated heat on the top of the inner liner, and thus the temperature rise of the holding handle part is relatively high, which is not convenient for the user to hold. Utility Model Content

[0004] This application provides an electric slow cooker to solve the technical problem that when placing the inner liner of the existing electric slow cooker, it is difficult to discharge the gas in the outer pot, thus generating resistance to the placement of the inner liner.

[0005] The technical solution adopted in this application is as follows:

[0006] An electric slow cooker includes an outer pot, a ceramic inner liner removably placed in the outer pot, and a heating member for heating the ceramic inner liner. The ceramic inner liner includes a main body part, a mouth part, and a transition part connecting the main body part and the mouth part. There is a rim channel between the transition part and the opening of the outer pot, and the wall thickness of the transition part is greater than the wall thickness of the main body part.

[0007] The electric slow cooker in this application further includes the following additional technical features:

[0008] At least part of the outer surface of the transition part is a concave arc surface or a first inclined surface, and the rim channel is formed between the concave arc surface and the opening, or between the first inclined surface and the opening.

[0009] At least part of the opening is a second inclined surface or an inner concave surface, and at least part of the rim channel is formed between the second inclined surface and the transition part, or between the inner concave surface and the transition part.

[0010] The rim channel is arranged circumferentially and communicatively along the transition part.

[0011] The heating element is arranged on the side wall of the outer pot, and the heating element extends circumferentially along the side wall of the outer pot to form a heating zone.

[0012] The height of the position of the heating element on the outer pot is less than half of the overall height of the outer pot.

[0013] A supporting part is arranged inside the outer pot, and the bottom of the ceramic liner abuts against the supporting part to be carried on the supporting part.

[0014] The outer pot includes a bottom wall and a side wall connecting the bottom wall and the opening, and the supporting part is arranged in the central area of the bottom wall.

[0015] The central area of the bottom wall is recessed towards the inside of the outer pot to form the supporting part, and a stop protrusion is arranged at the bottom of the ceramic liner. The stop protrusion and the supporting part are in stop cooperation to limit the displacement of the ceramic liner in the radial direction of the outer pot.

[0016] The electric slow cooker further includes a heat preservation cover covering the outside of the outer pot, and the outer diameter at the connection position of the mouth part and the transition part is greater than or equal to the outer diameter of the heat preservation cover.

[0017] Due to the adoption of the above technical solutions, the beneficial effects obtained by this application are as follows:

[0018] 1. By arranging the rim channel in this application, it is convenient to discharge the gas inside the outer pot during the process of placing the ceramic liner into the outer pot, reduce the resistance when the ceramic liner is placed into the outer pot, and improve the user's operation experience. However, the existence of this rim channel results in the largest heat loss at the transition part of the ceramic liner during the cooking process compared with the heat loss at the other parts of the ceramic liner. Therefore, by setting the wall thickness of the transition part to be greater than that of the main body part, the heat storage capacity at the transition part can be improved, the heat loss can be slowed down, the temperature in the ceramic liner can be maintained stable, the food in the ceramic liner can be heated more evenly, and the cooking effect can be improved. In addition, during the cooking process, the existence of this rim channel can prevent heat from accumulating and storing heat in the space between the transition part and the opening of the outer pot, thus facilitating the user to take and place the ceramic liner. Moreover, the increase in the wall thickness at the transition part can improve the structural strength at this part and enhance the durability.

[0019] In addition, after the cooking is completed, the existence of the rim channel can contribute to the realization of air convection between the internal space of the outer pot and the outside world, thereby realizing heat and cold exchange, contributing to accelerating the cooling of the inner pot, and facilitating the taking of the inner pot.

[0020] 2. As a preferred embodiment of the present application, at least a partial area of the outer surface of the transition part is a concave arc surface or a first inclined surface. The rim channel is formed between the concave arc surface and the opening, or between the first inclined surface and the opening. The arrangement of the concave arc surface and the first inclined surface can, on the one hand, guide the air flow during the gas discharge process, facilitating the smooth discharge of the gas, and solving the problem that the traditional ceramic liner is not smoothly placed due to the air at the bottom of the outer pot. On the other hand, it can increase the heat absorption area of the transition part facing the outer pot side, further enhancing the heat storage capacity of the transition part and reducing the heat dissipation at the transition part.

[0021] 3. As a preferred embodiment of the present application, the heating element extends circumferentially along the side wall of the outer pot to form a heating belt. After the outer pot is heated, it transfers heat to the ceramic liner. Compared with the technical solution of directly heating the ceramic liner, the ceramic liner in this embodiment is heated more evenly, which is particularly suitable for cooking methods that require long-term slow cooking, and can slowly and evenly transfer heat from the outer pot to the ceramic liner, making the taste of the cooked food more mellow. In addition, to achieve the smooth discharge of gas, there is a clearance fit between the side wall of the outer pot and the side wall of the ceramic liner. Therefore, the heat transfer method between the side wall of the outer pot and the side wall of the ceramic liner is thermal radiation. Setting the heating element on the side wall of the outer pot can enable the heat to be relatively quickly transferred to all areas of the ceramic liner during the operation of the heating element, achieving uniform heating and improving the cooking effect.

[0022] 4. As a preferred embodiment of the present application, the bottom of the ceramic liner is carried on the supporting part of the outer pot. Compared with the technical solution of setting the supporting part at the opening of the outer pot, this embodiment realizes the bottom support of the ceramic liner, so that an open design of the rim channel along the 360° of the opening of the outer pot can be achieved, which can not only improve the exhaust efficiency during the placement of the ceramic liner, but also realize the thermal convection of the air inside and outside the outer pot after cooking, thereby improving the heat dissipation efficiency of the ceramic liner.

[0023] 5. As a preferred embodiment of the present application, a heat preservation cover is provided outside the outer pot, and the outer diameter at the connection position between the inner pot mouth and the transition part is greater than or equal to the outer diameter of the heat preservation cover, so as to avoid the soup flowing down along the mouth of the ceramic liner entering the interior of the outer pot through the rim channel in the case of the ceramic liner overflowing, and increasing the cleaning burden of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation of the present application. In the drawings:

[0025] Figure 1 is a cross-sectional view of an electric slow cooker under an embodiment of the present application;

[0026] Figure 2 isFigure 1 Enlarged view of part A;

[0027] Figure 3 This is a three-dimensional view of the ceramic liner under an embodiment of the present application.

[0028] Among them,

[0029] 1. Ceramic liner; 11. Mouth part; 12. Transition part; 121. Concave arc surface; 13. Main body part;

[0030] 2. Outer pot; 21. Opening; 211. Second inclined surface; 212. Turned-out edge; 22. Supporting part;

[0031] 3. Heating element;

[0032] 4. Rim channel;

[0033] 5. Heat preservation cover. Specific embodiments

[0034] In order to more clearly explain the overall concept of the present application, the following will be described in detail by way of examples in combination with the drawings in the specification.

[0035] In the following description, many specific details are set forth in order to fully understand the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below. It should be noted that, without conflict, the embodiments of the present application and the features in each embodiment may be combined with each other.

[0036] In addition, in the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application.

[0037] In the present application, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or a communication connection; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0038] In this application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0039] As Figure 1 and Figure 2 shown, an electric slow cooker includes an outer pot 2, a ceramic liner 1 removably placed in the outer pot 2, and a heating element 3 for heating the ceramic liner 1. The ceramic liner 1 includes a main body portion 13, a mouth portion 11, and a transition portion 12 connecting the main body portion 13 and the mouth portion 11. There is a rim channel 4 between the transition portion 12 and the opening 21 of the outer pot 2, and the wall thickness T of the transition portion 12 1 is greater than the wall thickness T of the main body portion 13 2 .

[0040] This application does not limit the material of the outer pot 2. Preferably, the outer pot 2 is made of a metal material. For example, the outer pot 2 is an aluminum pot.

[0041] Preferably, the ceramic liner 1 is made by high-temperature firing of ceramics or sandy soil.

[0042] As a preferred embodiment of this application, as Figure 2 shown, the rim channel 4 is in a flared shape. The flared shape means that the ventilation area of the rim channel 4 shows an increasing trend from the inside to the outside.

[0043] In the electric slow cooker of the present application, to improve the heat transfer efficiency, during the cooking process, no water needs to be placed in the outer pot 2. To prevent water from leaking out of the outer pot when the user places water in the outer pot 2 and performs water bath stewing on the ceramic liner 1, there are no structures for fluid leakage on the side wall and the bottom wall of the outer pot 2. Therefore, when the ceramic liner 1 is placed into the outer pot 2, there will be an obvious sense of resistance. By providing the rim channel 4, the present application can facilitate the discharge of the gas inside the outer pot 2 during the process of placing the ceramic liner 1 into the outer pot 2, reduce the resistance when the ceramic liner 1 is placed into the outer pot 2, and improve the user's operation experience. However, the presence of the rim channel 4 results in the largest heat loss at the transition part 12 of the ceramic liner 1 compared to the heat loss at the other parts of the ceramic liner 1 during the cooking process. Therefore, by setting the wall thickness of the transition part 12 to be greater than the wall thickness of the main body part 13, the heat storage capacity of the transition part 12 can be improved, the heat loss can be slowed down, the temperature in the ceramic liner 1 can be maintained stable, the food in the ceramic liner 1 can be heated more evenly, and the cooking effect can be improved. In addition, during the cooking process, the presence of the rim channel 4 can prevent heat from accumulating and storing heat in the space between the transition part 12 and the opening 21 of the outer pot 2, thus facilitating the user to take and place the ceramic liner 1. Moreover, the increase in the wall thickness at the transition part 12 can improve the structural strength of this part and enhance the durability.

[0044] In addition, after the cooking is completed, the presence of the rim channel 4 can contribute to the realization of air convection between the internal space of the outer pot 2 and the outside world, thereby achieving heat and cold exchange, contributing to accelerating the cooling of the inner pot, and facilitating the taking and placing of the inner pot.

[0045] As an implementation mode of the present application, the rim channel 4 is arranged in a circumferential connection along the transition part 12. In other words, the rim channel 4 is arranged in a 360° circumferential connection along the circumference of the transition part 12.

[0046] As another implementation mode of the present application, a plurality of rim channels 4 are arranged at intervals along the circumference of the transition part 12.

[0047] In the present application, the specific structure of the rim channel 4 can adopt any one of the following implementation modes:

[0048] Implementation mode 1: As shown in Figure 2 and Figure 3 , at least part of the outer surface area of the transition part 12 is a concave arc surface 121 or a first inclined surface, and the rim channel 4 is formed between the concave arc surface 121 and the opening 21, or between the first inclined surface and the opening 21. By setting at least part of the outer surface area of the transition part 12 as the concave arc surface 121 or the first inclined surface, the distance between the transition part 12 and the opening 21 of the outer pot 2 can be increased, facilitating the smooth discharge of the gas inside the outer pot 2. In addition, the arrangement of the concave arc surface 121 and the first inclined surface can naturally increase the wall thickness of the transition part 12 and reduce the heat loss of the transition part 12.

[0049] Embodiment 2: At least a partial area of the opening 21 is a second inclined surface 211 or a concave surface, and at least a part of the rim channel 4 is formed between the second inclined surface 211 and the transition part 12, or between the concave surface and the transition part 12.

[0050] By providing a second inclined surface 211 or a concave surface for expanding the ventilation area of the rim channel 4 at the opening 21 of the outer pot 2, it is possible to guide the gas discharge and expand the ventilation area of the gas discharge channel during the process of placing the ceramic pot 1 into the outer pot 2, reduce the resistance of placing the ceramic pot 1, and improve the user experience.

[0051] As a preferred embodiment under this Embodiment 2, as Figure 2 shown, the opening 21 includes a guiding portion in the form of a second inclined surface 211 or a concave surface and a flanging 212 connected to the guiding portion. The upper surface of the flanging 212 is a plane, and the maximum ventilation area of the rim channel 4 is formed between the flanging 212 and the transition part 12. Designing the upper surface of the flanging 212 as a plane is convenient for the installation and fixation of the outer pot 2 on the one hand, and can further expand the ventilation area between the opening 21 and the transition part 12 on the other hand, facilitating the smooth discharge of gas. Moreover, compared with the technical solution in which the flanging 212 is arranged to extend along the extending direction of the guiding portion, the flanging 212 being a plane can reduce the possibility of the overflowing fluid entering the interior of the outer pot 2 along the flanging 212 in the case of the ceramic pot 1 overflowing, thereby reducing the cleaning burden on the user.

[0052] Embodiment 3: As Figure 2 shown, at least a partial area of the outer surface of the transition part 12 is a concave arc surface 121, at least a partial area of the opening 21 is a second inclined surface 211 or a concave surface, and at least a partial area of the rim channel 4 is formed between the concave arc surface 121 and the second inclined surface 211, or at least a partial area of the rim channel 4 is formed between the concave arc surface 121 and the concave surface.

[0053] For the setting position of the heating element 3 in this application, any one of the following embodiments can be adopted:

[0054] Embodiment 4: As Figure 1 shown, the heating element 3 is arranged on the side wall of the outer pot 2, and the heating element 3 extends circumferentially along the side wall of the outer pot 2 to form a heating band.

[0055] The heating element 3 extends circumferentially along the side wall of the outer pot 2 to form a heating belt. After the outer pot 2 is heated, heat is transferred to the ceramic liner 1. Compared with the technical solution of directly heating the ceramic liner 1, the ceramic liner 1 in this embodiment is heated more evenly, which is particularly suitable for cooking methods that require long-term slow cooking. It can slowly and evenly transfer heat from the outer pot 2 to the ceramic liner 1, making the taste of the cooked food more mellow. In addition, in order to achieve smooth discharge of gas, there is a clearance fit between the side wall of the outer pot 2 and the side wall of the ceramic liner 1. Therefore, the heat transfer method between the side wall of the outer pot 2 and the side wall of the ceramic liner 1 is thermal radiation. By arranging the heating element 3 on the side wall of the outer pot 2, during the operation of the heating element 3, heat can be transferred to all areas of the ceramic liner 1 relatively quickly, achieving uniform heating and improving the cooking effect.

[0056] In the fourth embodiment, the installation method of the heating element 3 on the outer pot 2 is not limited. In one embodiment, an installation groove adapted to the heating element 3 is provided on the side wall of the outer pot 2, and the heating element 3 is embedded in the installation groove. In another embodiment, the electric slow cooker further includes a positioning bracket fixedly connected to the side wall of the outer pot 2, and the heating element 3 is installed on the positioning bracket. Preferably, the heating element 3 has a heating portion that abuts against the side wall of the outer pot 2 to achieve heat transfer.

[0057] As a preferred embodiment under the fourth embodiment, as Figure 1 shown, the position height of the heating element 3 on the outer pot 2 is less than half of the overall height of the outer pot 2. This embodiment utilizes the principle that air expands and rises when heated. By limiting the installation height of the heating element 3, after the heating element 3 operates, it can take into account the temperature rise of the lower part and the upper part of the ceramic liner 1, achieving uniform heating of the ceramic liner 1.

[0058] Embodiment Five: The heating element 3 is arranged on the bottom wall of the outer pot 2.

[0059] As a preferred embodiment under the fifth embodiment, a plurality of support portions that protrude laterally and are arranged at intervals along the circumferential direction of the side wall of the outer pot 2 are provided on the side wall of the outer pot 2. An air passage gap is formed between adjacent two support portions, and a heat storage gap exists between the support portion and the bottom wall of the outer pot 2. The heat storage gap is communicated with the air passage gap. Thus, when the heating element 3 is arranged on the bottom wall of the outer pot 2, heat transfer to the ceramic liner 1 can be achieved between the ceramic liner 1 and the bottom wall of the outer pot 2 through thermal radiation, and due to the existence of the air passage gap, hot air can diffuse upward through the air passage gap, thereby realizing three-dimensional heating of the ceramic liner 1 and improving the stewing effect of the ceramic liner 1.

[0060] Embodiment Six: The heating element 3 includes a first heating element and a second heating element. The first heating element is arranged on the side wall of the outer pot 2 and extends circumferentially along the side wall of the outer pot 2 to form a heating belt, and the second heating element is arranged on the bottom wall of the outer pot 2.

[0061] In this application, the supporting method of the ceramic liner 1 can adopt any one of the following embodiments:

[0062] Embodiment Seven: A plurality of top support portions are arranged at intervals along the circumferential direction at the opening 21 of the outer pot 2. An edge channel 4 is formed between two adjacent top support portions. The mouth portion 11 of the ceramic liner 1 is carried on the top support portion, thereby realizing the top support of the ceramic liner 1.

[0063] Embodiment Eight: A supporting portion 22 is provided inside the outer pot 2. The bottom of the ceramic liner 1 abuts against the supporting portion 22 to be carried on the supporting portion 22.

[0064] In this Embodiment Eight, the supporting portion 22 can be set in any one of the following embodiments:

[0065] Embodiment 1: A plurality of supporting portions are provided at the lower part of the side wall of the outer pot 2, protruding horizontally and arranged at intervals along the circumferential direction of the side wall of the outer pot 2. An air passage gap is formed between two adjacent supporting portions. There is a heat storage gap between the supporting portion and the bottom wall of the outer pot 2. The heat storage gap and the air passage gap are arranged in communication. The bottom of the ceramic liner 1 abuts against the supporting portion to realize the bottom support of the ceramic liner 1. The supporting portion in this Embodiment 1 constitutes the supporting portion 22.

[0066] Embodiment 2: As Figure 1 shown, the outer pot 2 includes a bottom wall and a side wall connecting the bottom wall and the opening 21. The supporting portion 22 is provided in the central area of the bottom wall.

[0067] The supporting portion 22 in this Embodiment 2 can be set in any one of the following examples:

[0068] Example 1: The thickness of the central area of the bottom wall of the outer pot 2 is thickened to form a convex platform protruding from the remaining area of the bottom wall of the outer pot 2. This convex platform constitutes the supporting portion 22.

[0069] Example 2: As Figure 1As shown in the figure, the central area of the bottom wall is recessed towards the inside of the outer pot 2 to form a supporting portion 22. A stop projection is provided at the bottom of the ceramic liner 1, and the stop projection and the supporting portion 22 are in stop cooperation to limit the displacement of the ceramic liner 1 in the radial direction of the outer pot 2. Since the supporting portion 22 has to abut against the bottom of the ceramic liner 1 to form support for the ceramic liner 1, the heat transfer between the supporting portion 22 and the ceramic liner 1 is contact heat transfer. Compared with radiative heat transfer, the contact heat transfer has higher heat efficiency. In order to avoid the heat at the contact part of the ceramic liner 1 and the supporting portion 22 being too high and being unfavorable for uniform heating, in this Example 2, the supporting portion 22 is formed by the inward concavity of the central area of the bottom wall of the outer pot 2, so that the wall thickness at the supporting portion 22 is the same as that of the rest of the bottom wall of the outer pot 2, avoiding increasing its heat storage capacity due to the larger wall thickness of the supporting portion 22, and further ensuring the uniformity of the heat received by the ceramic liner 1 on the basis of contact heat transfer. By providing a stop projection at the bottom of the ceramic liner 1, the stop projection and the supporting portion 22 are in stop cooperation to limit the displacement of the ceramic liner 1 in the radial direction of the outer pot 2, so that the ceramic liner 1 can be prevented from being offset in the radial direction, causing one side of the ceramic liner 1 to be close to the side wall of the outer pot 2 and the other side to be far from the side wall of the outer pot 2, and ultimately affecting the uniformity of heat reception. In addition, the setting of the stop projection can also be used to support the ceramic liner 1 after the ceramic liner 1 is taken out from and placed into the outer pot 2, reducing the contact area between the ceramic liner 1 and the supporting tabletop. On the one hand, it can facilitate the heat dissipation at the bottom of the ceramic liner 1, and on the other hand, it can reduce the probability of the supporting tabletop being damaged by heat.

[0070] As a preferred embodiment of the present application, as Figure 1 shown in the figure, the electric slow cooker further includes a heat preservation cover 5 covering the outside of the outer pot 2, and the outer diameter at the connection position of the mouth portion 11 and the transition portion 12 is greater than or equal to the outer diameter of the heat preservation cover 5. By providing the heat preservation cover 5, the outer pot 2 and the ceramic liner 1 can be heat-preserved, reducing the heat dissipation during the cooking process and improving the heat preservation effect. By setting the outer diameter at the connection position of the mouth portion 11 and the transition portion 12 to be greater than or equal to the outer diameter of the heat preservation cover 5, it can be ensured that the outer surface at the connection position of the mouth portion 11 and the transition portion 12 of the ceramic liner 1 is flush with or slightly protrudes from the outer wall of the heat preservation cover 5, which can avoid the soup flowing down along the mouth portion 11 of the ceramic liner 1 entering the inside of the outer pot 2 through the mouth edge channel 4 in the case of the ceramic liner 1 overflowing, and increasing the cleaning burden of the user.

[0071] What is not described in this application can be realized by adopting or referring to the existing technology.

[0072] Each embodiment in this specification is described in a progressive manner. The same or similar parts among the embodiments can be referred to each other, and the key points of each embodiment are the differences from other embodiments.

[0073] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims

1. An electric stew pot, comprising an outer pot, a ceramic pot which can be placed in the outer pot, and a heating element for heating the ceramic pot, wherein the ceramic pot comprises a main body, a mouth and a transition part connecting the main body and the mouth, characterized in that: An edge channel is provided between the transition portion and the opening of the outer pot, and the wall thickness of the transition portion is greater than the wall thickness of the main body portion.

2. The electric stew pot according to claim 1, characterized in that: At least a part of the outer surface of the transition portion is a concave arc surface or a first inclined surface, and the mouth channel is formed between the concave arc surface and the opening, or between the first inclined surface and the opening.

3. An electric stew pot according to claim 1 or 2, characterized in that: At least a part of the opening is a second inclined surface or an inner concave surface, and the mouth channel is at least partially formed between the second inclined surface and the transition portion, or between the inner concave surface and the transition portion.

4. The electric stew pot according to claim 1, characterized in that: The ports are arranged in a communication manner along the circumferential direction of the transition portion.

5. The electric stew pot according to claim 1, characterized in that: The heating element is arranged on the side wall of the outer pot, and the heating element extends along the circumference of the side wall of the outer pot to form a heating ring belt.

6. The electric stew pot according to claim 5, characterized in that: The height of the heating element at the outer pot is less than half of the overall height of the outer pot.

7. The electric stew pot according to claim 1, characterized in that: A supporting part is arranged in the outer pot, and the bottom of the ceramic pot abuts against the supporting part to be supported by the supporting part.

8. The electric stew pot according to claim 7, characterized in that: The outer pot comprises a bottom wall and a side wall connecting the bottom wall and the opening, and the supporting portion is arranged in a central area of ​​the bottom wall.

9. The electric stew pot according to claim 8, characterized in that: The central area of ​​the bottom wall is recessed toward the inside of the outer pot to form the supporting portion. A stop protrusion is provided at the bottom of the pottery pot, and the stop protrusion cooperates with the support portion to limit the displacement of the pottery pot along the radial direction of the outer pot.

10. The electric stew pot according to claim 1, characterized in that: The electric stew pot further comprises a heat-insulating cover covering the outer side of the outer pot, and the outer diameter of the connection position between the mouth and the transition part is greater than or equal to the outer diameter of the heat-insulating cover.

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