Cooking body of a cooking appliance and cooking appliance

The cooking body design with side and bottom heating coils, along with a lid heating coil, addresses uneven heating in conventional appliances, achieving uniform, efficient, and flavorful cooking through three-dimensional heating.

JP7709999B2Active Publication Date: 2025-07-17FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD
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Patent Information

Application Number
JP2023058968
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2022-11-11
Filing Date
2023-03-31
Publication Date
2025-07-17
Estimated Expiration
2043-03-31

AI Technical Summary

Technical Problem

Conventional cooking appliances heat food unevenly, particularly the upper parts, leading to prolonged cooking times and reduced efficiency, and lack the ability to induce a three-dimensional Maillard reaction for enhanced flavor.

Method used

A cooking body design with a first heating coil surrounding the side plates and a second heating coil at the bottom, along with a third heating coil on the lid, allowing for uniform three-dimensional heating and efficient cooking.

Benefits of technology

Ensures uniform heating of food in all directions, reduces cooking time, and effectively induces the Maillard reaction for flavorful food, enhancing cooking efficiency and effectiveness.

✦ Generated by Eureka AI based on patent content.

Smart Images

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Patent Text Reader

Abstract

To provide a cooking body of a cooking appliance capable of uniformly heating food, shortening time required for heating the food, securing cooking efficiency of the cooking appliance, heating the food three-dimensionally to sufficiently cause a Maillard reaction and making the food further flavorful.SOLUTION: A cooking body 10 of a cooking appliance includes an outer case 1, an outer pot 2 and a first heating coil. The outer pot is provided inside the outer case to define a mounting space 3 together with the outer case, and includes a bottom plate 22, a side plate 23 and a transition plate 24, where the transition plate is used for connecting the bottom plate and the side plate. The first heating coil is disposed in the mounting space, wound around the side plate, and located outside the transition plate. The cooking body can uniformly heat the food, shorten the time required for heating the food, secure cooking efficiency of the cooking appliance, heat the food three-dimensionally to sufficiently cause a Maillard reaction, and make the food further flavorful.SELECTED DRAWING: Figure 3
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Description

Technical Field

[0001] This application relates to the technical field of cooking appliances, and specifically, to a cooking body of a cooking appliance and a cooking appliance.

Background Art

[0002] In conventional cooking appliances, it is necessary to install a heating coil inside the cooking body, and the food inside the inner pot is heated by heating the inner pot with the heating coil. In the conventional technology, the heating coil is usually arranged at the bottom of the outer pot, and since the temperature is transmitted from bottom to top, the food at the upper part cannot be heated uniformly, and the overall heating takes a long time, which affects the cooking efficiency of the cooking appliance and the cooking effect of the cooking appliance, and there is room for improvement.

Summary of the Invention

Problems to be Solved by the Invention

[0003] The main purpose of this application is to solve at least to some extent one of the above technical problems in the conventional technology. For this reason, this application provides a cooking body of a cooking appliance that can uniformly heat food, has a short time required for heating food, ensures the cooking efficiency of the cooking appliance, and three-dimensionally heats food to sufficiently cause the Maillard reaction to make the food more flavorful.

Means for Solving the Problems

[0004] The cooking body of the cooking appliance according to the embodiment of this application includes an external case, an outer pot provided inside the external case and limiting a mounting space together with the external case, the outer pot including a bottom plate, side plates, and a transition plate for connecting the bottom plate and the side plates, and a first heating coil provided in the mounting space, the first heating coil being provided to surround the side plates and / or being located outside the transition plate.

[0005] According to the cooking body of the cooking appliance of the embodiment of the present application, the cooking body can uniformly heat food, the time required for heating the food is short, the cooking efficiency of the cooking appliance is ensured, and the food is heated three-dimensionally to sufficiently cause the Maillard reaction, making the food more flavorful.

[0006] In addition, the cooking body of the cooking appliance according to the embodiment of the present application may have the following additional technical features.

[0007] According to some embodiments of the present application, the first heating coil includes a first heating part and a second heating part. The first heating part is wound around the side plate, and the second heating part is located outside the transition plate.

[0008] According to some embodiments of the present application, the first heating part is provided close to the top of the mounting space.

[0009] According to some embodiments of the present application, there is a spacing distance between the first heating part and the second heating part.

[0010] According to some embodiments of the present application, a fixing groove is provided on the side wall of the outer pot facing the outer case, and the first heating part is wound around the outer pot along the fixing groove.

[0011] According to some embodiments of the present application, a plurality of fixing grooves are provided side by side vertically, and a part of the first heating part is provided in each fixing groove.

[0012] According to some embodiments of the present application, the cooking body of the cooking appliance further includes an inner pot provided in the outer pot. At least a part of the inner pot corresponding to the side plate extends along the vertical direction to form a vertical heating part, and the first heating part is provided corresponding to the vertical heating part.

[0013] According to some embodiments of the present application, at least a part of the side plate extends vertically, and the first heating part is provided corresponding to the vertically extending part of the side plate.

[0014] According to some embodiments of the present application, a maximum water level line and a minimum water level line are provided on the inner pot, and the first heating part is located between the maximum water level line and the minimum water level line.

[0015] According to some embodiments of the present application, the cooking body of the cooking device further includes a second heating coil provided in the mounting space and located outside the bottom plate.

[0016] According to some embodiments of the present application, the second heating coil and the first heating coil are provided in parallel.

[0017] A cooking device according to another aspect of the present application includes a cooking body that is the cooking body of the above cooking device, and a lid assembly provided on the cooking body for opening and closing the cooking body.

[0018] According to some embodiments of the present application, the lid assembly includes an inner lid, a third heating coil provided on the inner lid, and a heating lid provided on the inner lid and located below the third heating coil, which is heated when the third heating coil is energized.

[0019] According to some embodiments of the present application, the third heating coil and the first heating coil are connected in series.

[0020] According to some embodiments of the present application, the cooking device further includes a second heating coil provided in the mounting space and located outside the bottom plate, which is connected in parallel to the first heating coil and the third heating coil connected in series. The cooking device further includes a first coil switch and a second coil switch. The first coil switch is connected to the second heating coil to control the connection / disconnection of the power supply of the second heating coil. The second coil switch is connected to the first heating coil to control the connection / disconnection of the power supply of the first heating coil and the third heating coil.

Brief Description of the Drawings

[0021]

Figure 1

Figure 2

Figure 3

Figure 4

Mode for Carrying Out the Invention

[0022] Hereinafter, embodiments of the present application shown in the drawings will be described in detail. In all the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions. The embodiments described with reference to the following drawings are exemplary and are for explaining the present application, and should not be construed as a limitation on the present application.

[0023] In the description of the present application, terms indicating directions and positional relationships such as "center", "longitudinal direction", "lateral direction", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the directions or positional relationships shown in the drawings, and are only for facilitating the description of the present application and simplifying the description, and do not indicate or imply that the indicated device or element must have a specific direction, configuration and operation in a specific direction, and cannot be regarded as limiting the present application.

[0024] Note that terms such as "first" and "second" are only for explaining the purpose, and cannot be regarded as indicating or implying relative importance or implicitly indicating the number of the technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless specifically and clearly limited, the concept of "a plurality" means at least two, for example, two or three.

[0025] In this application, unless specifically defined and limited otherwise, terms such as "attach", "connect to each other", "connect", "fix", etc. should be understood in a broad sense. For example, it may be fixedly connected, removably connected or integrally connected, mechanically connected, electrically connected or made communicable with each other, directly connected to each other, or connected to each other through an intermediate medium, or the interiors of two elements may communicate with each other or be in an interaction relationship of the two elements. The parties can understand the specific concepts of the above technical terms in this application according to the specific situation.

[0026] In this application, unless specifically defined and limited otherwise, the statement that the first feature is "above" or "below" the second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact and are in contact through another feature between the first and second features. Also, the statement that the first feature is "above", "upward" and "upper surface" of the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The statement that the first feature is "below", "downward" and "lower surface" of the second feature includes that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0027] As shown in FIG. 1, the cooking body of the cooking appliance according to the embodiment of this application may be the cooking body of cooking appliances such as a pressure cooker, a cooking machine, a rice cooker, etc.

[0028] In conventional cooking appliances, it is necessary to install a heating coil inside the cooking body, and the food inside the inner pot is heated by heating the inner pot with the heating coil. In the conventional technology, the heating coil is usually arranged at the bottom of the outer pot, and since the temperature is transmitted from bottom to top, the food at the upper part cannot be heated uniformly, and the overall heating takes a long time, which affects the cooking efficiency of the cooking appliance and the cooking effect of the cooking appliance.

[0029] Therefore, the embodiment of the present application designs a cooking body 10 in which a heating coil is provided on the side of the outer pot 2, thereby ensuring that the food in the cooking appliance is heated uniformly in all directions, and the upper part of the food can also be heated uniformly. The time required for heating the food is short, the cooking efficiency of the cooking appliance is ensured, and moreover, the food is heated three-dimensionally to sufficiently cause the Maillard reaction, making the food more flavorful. Furthermore, sufficient heating power is provided to the cooking appliance, and the cooking effect of the cooking appliance on the food is better.

[0030] Hereinafter, with reference to FIGS. 1-4, the cooking body 10 of the cooking appliance according to the embodiment of the present application will be described.

[0031] The cooking body 10 of the cooking appliance according to the embodiment of the present application may include an outer case 1, an outer pot 2, and a first heating coil 5.

[0032] The outer pot 2 is provided inside the outer case 1 and together with the outer case 1 defines an installation space 3. The first heating coil 5 is provided in the installation space 3. By providing the first heating coil 5 in the installation space 3, the volume required for arranging the first heating coil 5 becomes smaller, and the first heating coil 5 is protected by the outer pot 2 and the outer case 1 so as not to affect the safe operation of the cooking appliance due to the exposure of the coil.

[0033] Referring to FIGS. 1-3, the outer pot 2 includes a bottom plate 22, a side plate 23, and a transition plate 24. The transition plate 24 is used to connect the bottom plate 22 and the side plate 23, and may be formed in a closed hemispherical shape so that the outer pot 2 houses the inner pot 20.

[0034] Furthermore, the first heating coil 5 is provided by being wound around the side plate 23 and / or is located outside the transition plate 24. That is, the first heating coil 5 is located at the side part of the outer pot 2. Thereby, when there is a lot of food inside the inner pot 20, the first heating coil 5 can heat the food from the side part, the food is heated uniformly in the cooking device, the food is heated three-dimensionally, the time required for heating the food is short, and the cooking efficiency of the cooking device is ensured. Moreover, the Maillard reaction can be sufficiently caused to make the food more flavorful, and by adding a heating coil to the side part, sufficient heating power is given to the cooking device, and the cooking effect of the cooking device on the food is further enhanced.

[0035] The cooking main body 10 of the cooking device according to the embodiment of the present application can uniformly heat the food by the cooking main body 10, the time required for heating the food is short, the cooking efficiency of the cooking device is ensured, and the food is heated three-dimensionally to sufficiently cause the Maillard reaction to make the food more flavorful.

[0036] As shown in FIGS. 1-3, the first heating coil 5 includes a first heating part 51 and a second heating part 52. The first heating part 51 is provided by being wound around the side plate 23, and the second heating part 52 is located outside the transition plate 24.

[0037] The first heating part 51 is provided by being wound around the top of the side plate 23. The first heating part can heat the food at a position close to the top in the side plate 23, that is, a position far from the bottom. The food can be uniformly heated in the cooking device, the food is heated three-dimensionally, the time required for heating the food is short, the cooking efficiency of the cooking device is ensured, and moreover, the Maillard reaction can be sufficiently caused to make the food more flavorful.

[0038] Referring to FIG. 3, the cooking body 10 of the cooking appliance further includes an inner pot 20, and the inner pot 20 is provided inside the outer pot 2. Both the second heating coil 4 and the first heating coil 5 can heat the inner pot 20 by directly heating or generating a changing magnetic field. Food ingredients can be placed in the inner pot 20. The food ingredients are placed in the inner pot 20 and can be heated by the inner pot 20, thereby realizing cooking.

[0039] At least a part corresponding to the side plate 23 of the inner pot 20 extends along the vertical direction to form a vertical heating part, and the first heating part 51 is provided corresponding to the vertical heating part. Thereby, in the vertical direction, the relative distance between the inner pot 20 and the first heating part 51 is stable, the heating effect of the first heating part 51 on the inner pot 20 becomes more uniform, the heating effect of the first heating part 51 is ensured, and the cooking effect of the cooking appliance is improved.

[0040] As shown in FIGS. 1-3, at least a part of the side plate 23 extends vertically, the first heating part 51 is provided corresponding to the vertically extending part of the side plate 23, and the first heating part 51 provided at this part is parallel to the outer pot 2. Thereby, it is parallel to the inner pot 20 provided inside the outer pot 2. In the vertical direction, the relative distance between the inner pot 20 and the first heating part 51 is stable, the heating effect of the first heating part 51 on the inner pot 20 becomes more uniform, the heating effect of the first heating part 51 is ensured, and the cooking effect of the cooking appliance is improved.

[0041] The maximum water level line and the minimum water level line are marked in the inner pot 20, and at least a part of the first heating part 51 can heat at least a part of the pot body between the maximum water level line and the minimum water level line of the inner pot 20. When liquid is put into the inner pot 20 and the height of the liquid surface is above the position of the pot body of the inner pot 20 corresponding to the second coil, when the first heating part 51 operates, the liquid in the inner pot 20 can be heated more sufficiently, improving the cooking efficiency.

[0042] Referring to FIGS. 1-3, since there is a spacing distance between the first heating unit 51 and the second heating unit 52, the first heating unit 51 can be provided at the end far from the second heating unit 52, avoiding the magnetic fields generated between the second heating unit 52 and the first heating unit from interfering with each other, and ensuring that both the second heating unit 52 and the first heating unit 51 have good heating performance.

[0043] Combining the embodiments as shown in FIGS. 1-3, a fixing groove 21 is provided on the side wall facing the outer case 1 of the outer pot 2, and the first heating unit 51 is wound around the fixing groove 21 and wound around the outer pot 2. For this reason, the first heating unit 51 can be stably fixed in the mounting space 3 by the fixing groove 21 provided on the side wall of the outer pot 2, avoiding the coil position from shifting and affecting the heating effect of the first heating unit 51.

[0044] Also, by installing the fixing groove 21 on the side wall facing the outer case 1 of the outer pot 2, it is possible to avoid installing the mounting structure necessary for fixing the first heating unit 51 in the mounting space 3, making the overall structure of the cooking appliance more compact, preventing the arrangement of the first heating unit 51 from occupying more space in the cooking appliance, and increasing the space utilization rate in the cooking appliance.

[0045] As shown in FIGS. 1-3, a plurality of fixing grooves 21 are provided side by side vertically, and a part of the first heating unit 51 is provided in each fixing groove 21, and each part of the first heating unit 51 can be fixed respectively. The stability of the coil installation is ensured, and since the form of the first heating unit 51 does not change, the heating effect of the first heating unit 51 is ensured.

[0046] As shown in FIGS. 1-3, the cooking body 10 of the cooking appliance further includes a second heating coil 4, and the second heating coil 4 is provided in the mounting space 3. By installing the first heating coil 4 and the second heating coil 5 in the mounting space 3 at the same time, the volume required for the arrangement of the first heating coil 4 and the second heating coil 5 becomes smaller, and the first heating coil 4 and the first heating coil 5 are protected by the outer pot 2 and the external case 1 so as not to affect the safe operation of the cooking appliance due to the exposure of the coil.

[0047] Also, by arranging the first heating coil 4 and the second heating coil 5 in the mounting space 3 at the same time, it is also helpful for the electrical connection between the first heating coil 4 and the second heating coil 5.

[0048] The second heating coil 4 is located outside the bottom plate 22. That is, since the heating coil is provided at the bottom and side of the outer pot 2 at the same time, it is ensured that the food in the cooking appliance is heated uniformly in all directions, and the upper part of the food can also be heated uniformly, the time required for heating the food is short, and the cooking efficiency of the cooking appliance is ensured. In addition, the food can be heated three-dimensionally to sufficiently cause the Maillard reaction, making the food more flavorful. Furthermore, sufficient heating power is given to the cooking appliance to further enhance the cooking effect of the cooking appliance on the food.

[0049] Referring to FIG. 4, the second heating coil 4 and the first heating coil 5 are provided in parallel. That is, according to different modes, the cooking appliance can control the on / off of the second heating coil 4 and the first heating coil 5 respectively, and different heating effects are realized.

[0050] For example, in some operation modes, the second heating coil 4 and the first heating coil 5 heat simultaneously, in some other operation modes, the first coil heats while the first heating coil 5 does not heat, and in some other operation modes, the first heating coil 5 heats while the second heating coil 4 does not heat.

[0051] Specifically, when there is little food to be cooked in the cooking appliance, the second heating coil 4 may be controlled to heat while the first heating coil 5 is not heated. At this time, the cooking appliance controls the power supply to be turned on for the second heating coil 4 and turned off for the first heating coil 5 respectively, so as to ensure the heating effect and save power at the same time.

[0052] When there is a large amount of food to be cooked in the cooking appliance, the second heating coil 4 and the first heating coil 5 can be controlled to heat simultaneously. At this time, the cooking appliance controls the power supply to be turned on for the second heating coil 4 and the first heating coil 5 respectively, so that the food is heated uniformly in all directions, improving the heating efficiency of the cooking appliance, making the cooking effect of the food better, and making the food more flavorful.

[0053] When the cooking appliance needs to heat the upper part of the food better, the second heating coil 4 may not be heated, but the first heating coil 5 may be controlled to heat. At this time, the cooking appliance controls the power supply to be turned off for the second heating coil 4 and turned on for the first heating coil 5 respectively, so as to give more heat to the upper part of the food and meet the different heating requirements of the ingredients.

[0054] According to the above operation modes, according to the actual needs, by setting different operation times, the cooking appliance can operate alternately without sequencing among various operation modes, and the cooking appliance can make the cooked food more flavorful by providing different cooking methods at different cooking stages of the food.

[0055] According to some embodiments of the present application, a maximum water level line and a minimum water level line are provided on the inner pot 20, and the first heating part 51 is located between the maximum water level line and the minimum water level line. At least a part of the first heating part 51 can heat at least a part of the pot body between the maximum water level line and the minimum water level line of the inner pot 20. When liquid is put into the inner pot 20 and the height of the liquid surface is above the position of the pot body of the inner pot 20 corresponding to the first heating part 51, the first heating part 51 can operate to more fully heat the liquid in the inner pot 20, improving the cooking efficiency.

[0056] In addition, when there is no contradiction, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0057] The cooking appliance according to another aspect of the present application includes the cooking body 10 of the above cooking appliance. In the cooking appliance, by adopting the cooking body 10 of the above cooking appliance, the overall structure of the cooking appliance becomes more compact, the cooking efficiency becomes higher, and the cooking effect becomes better.

[0058] As shown in FIG. 3, the cooking appliance further includes a lid assembly 30. The lid assembly 30 is provided on the cooking body 10 so as to open and close the cooking body 10. When the lid assembly 30 closes the cooking body 10, the space inside the cooking body 10 is closed, the heat preservation performance of the cooking appliance becomes better, the heat is more easily utilized for cooking, and the cooking efficiency is improved.

[0059] Referring to FIG. 3, the lid assembly 30 includes an inner lid 301, a third heating coil 302, and a heating lid 303. The third heating coil 302 is provided on the inner lid 301, and the heating lid 303 is provided on the inner lid 301 and is located below the third heating coil 302. When the third heating coil 302 is energized, a magnetic field can be formed to heat the heating lid 303 in the magnetic field. The heated heating lid 303 can heat the food in the inner pot 20 from above the inner pot 20, which can not only improve the cooking efficiency of the cooking appliance, but also heat the food three-dimensionally, heat the upper part of the food evenly, fully cause the Maillard reaction, and make the food more flavorful.

[0060] As shown in FIG. 4, the third heating coil 302 and the first heating coil 5 are connected in series. That is, the cooking appliance can control the on / off of the third heating coil 302 and the first heating coil 5 simultaneously, simplify the control logic of the cooking appliance, and simplify the structure of the cooking appliance.

[0061] Furthermore, referring to FIG. 4, the second heating coil 4 is connected in parallel to the first heating coil 5 and the third heating coil 302 connected in series. That is, according to different modes, the cooking appliance can control the on / off of the second heating coil 4, the third heating coil 302, and the first heating coil 5 respectively to achieve different heating effects.

[0062] For example, in some operating modes, the second heating coil 4, the third heating coil 302, and the first heating coil 5 heat simultaneously. In some other operating modes, the first coil heats while the first heating coil 5 and the third heating coil 302 do not heat. In some other operating modes, the first heating coil 5 and the third heating coil 302 heat while the second heating coil 4 does not heat.

[0063] Specifically, when there is less food to be cooked in the cooking appliance, it may be controlled such that the second heating coil 4 heats while the first heating coil 5 and the third heating coil 302 do not heat. At this time, the cooking appliance controls the power supply to be on for the second heating coil 4 and off for the circuit in which the first heating coil 5 and the third heating coil 302 are connected in series, so as to ensure the heating effect and save power at the same time.

[0064] When there is more food to be cooked in the cooking appliance, it can be controlled such that the second heating coil 4, the first heating coil 5, and the third heating coil 302 heat simultaneously. At this time, the cooking appliance controls the power supply to be on for the second heating coil 4 and for the circuit in which the first heating coil 5 and the third heating coil 302 are connected in series, so that the food is heated uniformly in all directions, improving the heating efficiency of the cooking appliance, making the cooking effect of the food better, and making the food more flavorful.

[0065] When the cooking appliance needs to heat the upper part of the food better, the second heating coil 4 may not be heated, and the first heating coil 5 and the third heating coil 302 may be controlled to be heated. At this time, the cooking appliance turns off the power supply for the second heating coil 4 and turns on the power supply for the circuit in which the first heating coil 5 and the third heating coil 302 are connected in series, so as to give more heat to the upper part of the food and meet the different heating requirements of the ingredients.

[0066] For the above operation modes, according to the actual needs, by setting different operation times, it is possible to operate alternately between different operation modes without sequencing, and the cooking appliance can provide different cooking methods at different cooking stages of the food, so as to make the cooked food more flavorful.

[0067] Furthermore, referring to FIG. 4, the cooking appliance further includes a first coil switch K1 and a second coil switch K2. The first coil switch K1 is connected to the second heating coil 4 to control the on / off of the power supply of the second heating coil 4, and the second coil switch K2 is connected to the first heating coil 5 to control the on / off of the power supply of the first heating coil 5 and the third heating coil 302. By controlling the on / off of the first coil switch K1 and the second coil switch K2, the cooking appliance can be controlled to switch between different operation modes.

[0068] For example, in some operation modes, the second heating coil 4, the third heating coil 302, and the first heating coil 5 are heated simultaneously. At this time, the first coil switch K1 and the second coil switch K2 are turned on simultaneously. In some other operation modes, the first coil is heated, and the first heating coil 5 and the third heating coil 302 are not heated. At this time, the first coil switch K1 is turned on, and the second coil switch K2 is turned off. In some other operation modes, the first heating coil 5 and the third heating coil 302 are heated, and the second heating coil 4 is not heated. At this time, the first coil switch K1 is turned off, and the second coil switch K2 is turned on.

[0069] Hereinafter, a specific embodiment of the cooking appliance will be described with reference to the drawings.

[0070] As shown in FIGS. 1-4, the cooking appliance includes a cooking body 10, an inner pot 20, and a lid assembly 30. The inner pot 20 is provided inside the cooking body 10, and ingredients can be placed inside the inner pot 20. Both the cooking body 10 and the lid assembly 30 can heat the inner pot 20. The ingredients are placed inside the inner pot 20 and can be heated by the inner pot 20, thereby realizing cooking. Further, the lid assembly 30 is provided on the cooking body 10 so as to open and close the inner pot 20. When the lid assembly 30 closes the inner pot 20, the space inside the inner pot 20 is closed, the heat preservation performance of the cooking appliance is improved, heat is more easily utilized for cooking, and the cooking efficiency is improved.

[0071] The cooking body 10 includes an outer case 1, an outer pot 2, a second heating coil 4, and a first heating coil 5. The inner pot 20 is provided inside the outer pot 2, and the outer pot 2 is provided inside the outer case 1 and defines a mounting space 3 together with the outer case 1.

[0072] The outer pot 2 includes a bottom plate 22, a side plate 23, and a transition plate 24. The bottom plate 22 is integrally formed with the transition plate 24. The side plate 23 is fixedly provided above the transition plate 24. A first mounting space is defined between the bottom plate 22 and the outer case 1, a second mounting space is defined between the transition plate 24 and the outer case 1, and a third mounting space is defined between the side plate 23 and the outer case 1.

[0073] The second heating coil 4 is disposed within the first mounting space and heats the inner pot 20 at the bottom of the inner pot 20. The second heating portion 52 of the first heating coil 5 is disposed in the second mounting space. The first heating portion 51 of the first heating coil 5 is disposed at a position close to the top of the third mounting space, i.e., at a position far from the second heating coil 4 and the second heating portion 52 to heat food. Thereby, the food can be heated uniformly within the cooking appliance, the food is heated three-dimensionally, the time required for heating the food is shortened, the cooking efficiency of the cooking appliance is ensured, and moreover, the Maillard reaction can be sufficiently caused to make the food more flavorful. Also, since a heating coil is added to the side portion, sufficient heating power is provided to the cooking appliance, and the cooking effect of the cooking appliance on the food is better.

[0074] Fixing grooves 21 are provided on the side facing the outer case 1 of the side plate 23, and a plurality of fixing grooves 21 are provided side by side vertically. A part of the first heating portion 51 is provided in each fixing groove 21 to avoid the coil position shifting and affecting the heating effect of the first heating portion 51.

[0075] The maximum water level line and the minimum water level line are marked in the inner pot 20, and at least a part of the first heating portion 51 can heat at least a part of the pot body between the maximum water level line and the minimum water level line of the inner pot 20. When liquid is put into the inner pot 20 and the height of the liquid surface is above the position of the pot body of the inner pot 20 corresponding to the second coil, the first heating portion 51 can operate to more sufficiently heat the liquid in the inner pot 20 and improve the cooking efficiency.

[0076] Since the side plate 23 extends along the vertical direction, at least a part corresponding to the side plate 23 extends along the vertical direction on the side wall of the inner pot 20 arranged in the same shape as the outer pot 2, and the positions of at least a part of the fixing grooves 21 correspond to the pot body portion of the inner pot 20 extending along the vertical direction. Thereby, the first heating portion 51 provided in the part of the fixing grooves 21 is parallel to the inner pot 20, and in the longitudinal direction, the relative distance between the inner pot 20 and the first heating portion 51 is stable, the heating effect of the first heating portion 51 on the inner pot 20 becomes more uniform, the heating effect of the first heating portion 51 is ensured, and the cooking effect of the cooking appliance is enhanced.

[0077] Referring to FIG. 3, the lid assembly 30 includes an inner lid 301, a third heating coil 302, and a heating lid 303. The third heating coil 302 is provided on the inner lid 301, and the heating lid 303 is provided on the inner lid 301 and located below the third heating coil 302. When the third heating coil 302 is energized, a magnetic field can be formed to heat the heating lid 303 within the magnetic field. The heated heating lid 303 can heat the food in the inner pot 20 from above the inner pot 20, which can not only improve the cooking efficiency of the cooking appliance, but also heat the food three-dimensionally, heat the upper part of the food evenly, fully cause the Maillard reaction, and make the food more flavorful.

[0078] Furthermore, referring to FIG. 4, the second heating coil 4 and the first heating coil 5 are connected in series, and the circuit connected in series is connected in parallel with the third heating coil 302. That is, according to different modes, the cooking appliance can control the on / off of the second heating coil 4, the first heating coil 5, and the third heating coil 302 respectively to achieve different heating effects.

[0079] For example, in some operating modes, the second heating coil 4, the third heating coil 302, and the first heating coil 5 heat simultaneously. In some other operating modes, the first coil heats, while the first heating coil 5 and the third heating coil 302 do not heat. In some other operating modes, the first heating coil 5 and the third heating coil 302 heat, while the second heating coil 4 does not heat.

[0080] Specifically, when there is less food to be cooked in the cooking appliance, it may be controlled such that the second heating coil 4 heats and the first heating coil 5 and the third heating coil 302 do not heat. At this time, the cooking appliance controls the power supply to be on for the second heating coil 4 and off for the circuit in which the first heating coil 5 and the third heating coil 302 are connected in series, so as to ensure the heating effect and save power at the same time.

[0081] When there is a large amount of food to be cooked in the cooking appliance, it can be controlled so that the second heating coil 4, the first heating coil 5, and the third heating coil 302 are heated simultaneously. At this time, the cooking appliance controls the power supply to turn on in a circuit where the second heating coil 4, the first heating coil 5, and the third heating coil 302 are connected in series, so that the food is heated uniformly in all directions, improving the heating efficiency of the cooking appliance, making the cooking effect of the food better, and making the food more flavorful.

[0082] When the cooking appliance needs to heat the upper ingredients better, it may be controlled so that the second heating coil 4 does not heat and the first heating coil 5 and the third heating coil 302 heat. At this time, the cooking appliance controls the power supply to turn off for the second heating coil 4 and turn on in a circuit where the first heating coil 5 and the third heating coil 302 are connected in series, giving more heat to the upper part of the food and meeting the different heating requirements of the ingredients.

[0083] The above operation modes can, according to actual needs, set different operation times to operate alternately without sequencing among various operation modes. By providing different cooking methods at different cooking stages of the food, the cooking appliance can make the cooked food more flavorful.

[0084] In the description of this specification, the description of reference terms such as "an embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the above exemplary descriptions of terms do not necessarily target the same embodiment or example. Also, the specific features, structures, materials, or characteristics to be described can be combined in a suitable manner in any one or more embodiments or examples. Note that when there is no conflict with each other, those skilled in the art can combine and combine different embodiments or examples and the features of different embodiments or examples described in this specification.

[0085] Examples of the present application have been presented and described. However, the above examples are illustrative and cannot be understood as limiting the present application. Those skilled in the art can understand that various changes, modifications, substitutions, and variations can be made to the above examples within the scope of the present application.

Explanation of Reference Numerals

[0086] 10 Cooking main body 1 Outer case 2 Outer pot 21 Fixed groove 22 Bottom plate 23 Side plate 24 Transition plate 3 Mounting space 4 Second heating coil 5 First heating coil 51 First heating part 52 Second heating part 20 Inner pot 30 Lid assembly 301 Inner lid 302 Third heating coil 303 Heating lid K1 First coil switch K2 Second coil switch

Claims

1. An outer case, An outer pot provided inside the outer case and defining an installation space together with the outer case, the outer pot including a bottom plate, side plates, and a transition plate for connecting the bottom plate and the side plates, A first heating coil provided in the installation space, the first heating coil being wound around the side plates and / or located outside the transition plate, The first heating coil includes a first heating part and a second heating part, The first heating part is located above the second heating part, The first heating part is wound around the side plates, A fixing groove is provided on the side wall of the outer pot facing the outer case, and the first heating part is wound around the outer pot along the fixing groove, The second heating part is located outside the transition plate, and in the direction from bottom to the first heating part, the coil gradually decreases from four layers to one layer. A cooking body of a cooking device is characterized by this.

2. The cooking body of the cooking device according to claim 1, wherein the first heating part is provided close to the top of the installation space.

3. The cooking body of the cooking device according to claim 1, wherein there is a spacing distance between the first heating part and the second heating part.

4. The cooking body of the cooking device according to claim 1, wherein a plurality of fixing grooves are provided side by side vertically, and a part of the first heating part is provided in each fixing groove.

5. The cooking body further includes an inner pot provided in the outer pot. At least a part of the inner pot corresponding to the side plates extends along the vertical direction to form a vertical heating part, and the first heating part is provided corresponding to the vertical heating part. The cooking body of the cooking device according to claim 1 is characterized by this.

6. The cooking body of the cooking device according to claim 5, wherein at least a part of the side plates extends vertically, and the first heating part is provided corresponding to the vertically extending part of the side plates.

7. The cooking body of the cooking device according to claim 5, wherein a maximum water level line and a minimum water level line are provided on the inner pot, and the first heating part is located between the maximum water level line and the minimum water level line.

8. The cooking body further includes a second heating coil provided in the installation space and located outside the bottom plate, The four-layer winding of the second heating part overlaps in the direction towards the side wall of the outer case. The second heating coil is wound in multiple layers and overlaps in a direction toward the bottom wall of the outer case. The cooking body of the cooking appliance according to claim 1, characterized in that.

9. The second heating coil and the first heating coil are provided in parallel. The cooking body of the cooking appliance according to claim 8, characterized in that.

10. A cooking body that is the cooking body of the cooking appliance according to any one of claims 1 to 9, A lid assembly provided on the cooking body for opening and closing the cooking body. A cooking appliance characterized by comprising.

11. The lid assembly includes An inner lid, A third heating coil provided on the inner lid, A heating lid provided on the inner lid and positioned below the third heating coil, which is heated when the third heating coil is energized. The cooking appliance according to claim 10, characterized in that it comprises.

12. The third heating coil and the first heating coil are connected in series. The cooking appliance according to claim 11, characterized in that.

13. A second heating coil is further provided in the mounting space and located outside the bottom plate, and is connected in parallel to the first heating coil and the third heating coil connected in series. The cooking appliance further comprises a first coil switch and a second coil switch. The first coil switch is connected to the second heating coil and controls the on / off of the power supply of the second heating coil. The second coil switch is connected to the first heating coil and controls the on / off of the power supply of the first heating coil and the third heating coil. The cooking appliance according to claim 12, characterized in that.

Citation Information

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