Cooking utensil

Abstract

The cooking utensil comprises a pot body, an inner pot, an electromagnetic heating coil panel and a heating piece, the inner pot, the electromagnetic heating coil panel and the heating piece are all arranged in the pot body, the heating piece comprises a heating bottom wall and a heating side wall connected to the peripheral side of the heating bottom wall, and the inner pot is arranged in the heating piece; the electromagnetic heating coil panel is arranged at the bottom and / or the side part of the inner cavity of the cooker body, the heating piece comprises a magnetic conductive part, and at least part of the magnetic conductive part is located in the magnetic field range of the electromagnetic heating coil panel. By arranging the electromagnetic heating coil panel and the heating piece comprising the magnetic conductive part, IH heating can be achieved. The heating element is not meltallized on the outer wall of the inner pot, and the heating element and the inner pot are two independent elements, so that the heating element can be independently processed, and compared with the prior art that the heating element is formed on the outer wall of the inner pot in a manner of meltallizing a magnetic conductive layer, the heating element processing technology is simpler.

Description

Technical Field

[0001] The present application relates to the technical field of small household appliances, and particularly to a cooking appliance. Background Art

[0002] For cooking appliances provided with IH heating coils, such as electric slow cookers, rice cookers, etc., the outer wall of the inner pot is directly heated by electromagnetic heating. Since the inner pot is made of non-magnetic conductive materials, a magnetic conductive layer needs to be sprayed on the outer wall of the inner pot, which has a complex process and high cost. Moreover, the inner pot is often made of ceramic materials, and the magnetic conductive layer on the outer wall of the ceramic inner pot has poor wear resistance, and the magnetic conductive layer is likely to fall off after long-term use, affecting heating and having a short service life. Summary of the Utility Model

[0003] Based on this, it is necessary to provide a cooking appliance that can simplify the processing technology of the heating element when using IH heating.

[0004] A cooking appliance includes: a pot body, an inner pot, an electromagnetic heating coil disk, and a heating element. The inner pot, the electromagnetic heating coil disk, and the heating element are all arranged in the pot body. The heating element includes a heating bottom wall and a heating side wall connected to the periphery of the heating bottom wall. The inner pot is arranged inside the heating element. The electromagnetic heating coil disk is arranged at the bottom and / or side of the inner cavity of the pot body. The heating element includes a magnetic conductive part, and at least part of the magnetic conductive part is located within the magnetic field range of the electromagnetic heating coil disk.

[0005] The present application can achieve IH heating by arranging an electromagnetic heating coil disk and a heating element including a magnetic conductive part. Since the heating element is not sprayed on the outer wall of the inner pot and the heating element and the inner pot are two independent components, the heating element can be processed separately. Compared with the prior art in which a heating element is formed on the outer wall of the inner pot by spraying a magnetic conductive layer, the processing technology of the heating element in the present application is simpler.

[0006] In one embodiment, the shape and size of the top surface of the heating bottom wall match the shape and size of the outer surface of the bottom wall of the inner pot, and / or the shape and size of at least part of the inner surface of the heating side wall match the shape and size of the outer side wall of the inner pot.

[0007] In this way, the heating bottom wall can be close to or closely attached to the outer surface of the bottom wall of the inner pot, which is beneficial to the heating bottom wall heating the bottom wall of the inner pot and improving the heating efficiency. And / or, the heating side wall can be close to or closely attached to the side wall of the inner pot, which is beneficial to the heating side wall heating the side wall of the inner pot and improving the heating efficiency.

[0008] In one embodiment, a plurality of circumferentially distributed partition grooves are formed in the heating member. The partition grooves penetrate the inner and outer side surfaces of the heating member, extend downward from the top end of the heating side wall to the heating bottom wall, and divide the heating side wall into a plurality of lobes.

[0009] In this way, the heating member has a multi-lobe structure, and the heating side wall has a tendency to converge towards the center. As long as the outer diameter of the inner pot is greater than the inner diameter of the heating side wall in its natural state, when the inner pot is installed in the pot body, the heating side wall of the heating member can tightly adhere to the side wall of the inner pot by using its own elastic deformation, which is beneficial to improving the heat transfer efficiency and heat transfer uniformity. Moreover, the heating member arranged in this way can adapt to inner pots with different size deviations, avoiding the problem of low heat transfer efficiency caused by the gap between the heating member and the inner pot.

[0010] In one embodiment, the electromagnetic heating coil disc has an IH heating coil, and the magnetic conduction part is arranged corresponding to the IH heating coil.

[0011] In this way, the magnetic conduction part is within the magnetic field range generated by the energization of the IH heating coil. Thus, starting the electromagnetic heating coil disc can make the magnetic conduction part generate heat, and then the magnetic conduction part transfers heat to other parts of the heating member and to the inner pot, thereby heating the ingredients in the inner pot.

[0012] In one embodiment, the electromagnetic heating coil disc is arranged at the bottom of the inner cavity of the pot body, and the heating bottom wall includes the magnetic conduction part.

[0013] In this way, the magnetic conduction part is easily within the magnetic field range of the electromagnetic heating coil disc, and the structure is very compact.

[0014] In one embodiment, the distance L1 between the heating bottom wall and the IH heating coil is 5 mm to 15 mm.

[0015] In this way, it is ensured that the heating bottom wall is within the magnetic field range of the IH heating coil and has a good heating effect.

[0016] In one embodiment, the electromagnetic heating coil disc is arranged at the side part of the inner cavity of the pot body, and the heating side wall includes the magnetic conduction part.

[0017] In this way, the magnetic conduction part is easily within the magnetic field range of the electromagnetic heating coil disc, and the structure is very compact.

[0018] In one embodiment, an elastic member is arranged below the heating bottom wall, and the elastic member applies an upward moving force to the heating member so that the heating bottom wall abuts against the bottom wall of the inner pot.

[0019] In this way, the heating element can adapt to inner pots with different height deviations, ensuring that the heating bottom wall is in close contact with the inner bottom wall of the pot. Thus, the heating element heats the inner pot through contact heat transfer, making the inner pot receive heat more evenly and improving the heating efficiency.

[0020] In one embodiment, the electromagnetic heating coil is disposed at the bottom of the inner cavity of the pot body, and the elastic member abuts against the heating bottom wall and the electromagnetic heating coil, or abuts against the heating bottom wall and the bottom wall of the pot body.

[0021] The electromagnetic heating coil is disposed at the bottom of the inner cavity of the pot body, and the elastic member abuts against the heating bottom wall and the electromagnetic heating coil. In this way, the elastic member can also ensure that the distance between the heating bottom wall and the IH heating coil is a preset distance, ensuring that the heating bottom wall is within the magnetic field range of the IH heating coil. The elastic member abuts against the heating bottom wall and the bottom wall of the pot body. In this way, the bottom wall of the pot body can provide a supporting force to the elastic member, so that the elastic member can apply an upward elastic force to the heating element, making the heating bottom wall closely fit the inner bottom wall of the pot.

[0022] In one embodiment, the heating bottom wall is provided with positioning posts, the elastic member is sleeved on the positioning posts, the electromagnetic heating coil is provided with positioning through holes, and the positioning posts pass through the positioning through holes.

[0023] In this way, the positioning posts can limit the elastic member to prevent the elastic member from falling off during use. The positioning through holes can position the positioning posts. The cooperation of the positioning posts and the positioning holes limits the installation position of the heating element on the electromagnetic heating coil, so that the heating element can be quickly installed in the pot body during assembly.

[0024] In one embodiment, the electromagnetic heating coil is disposed at the side of the inner cavity of the pot body, and the elastic member abuts against the heating bottom wall and the bottom wall of the pot body.

[0025] In this way, the bottom wall of the pot body can provide a supporting force to the elastic member, so that the elastic member can apply an upward elastic force to the heating element, making the heating bottom wall closely fit the inner bottom wall of the pot.

[0026] In one embodiment, a heat preservation cover is further disposed in the pot body. The heat preservation cover is disposed on the outer peripheral side of the heating element, and both ends of the heat preservation cover are respectively connected to the pot body and the electromagnetic heating coil.

[0027] Setting the heat preservation cover can, on the one hand, play a role in heat preservation and reduce heat loss, and on the other hand, play a role in heat insulation and reduce the situation that the outer wall of the pot body gets hot.

[0028] In one embodiment, the distance between the heat preservation cover and the heating side wall is L2, and L2≥2mm.

[0029] In this way, it is ensured that there is a sufficient distance between the heat insulation cover and the heating element, and they will not come into contact, thus avoiding the problem of assembly interference caused by manufacturing tolerances, and also avoiding the contact heat transfer formed between the deformation generated by the assembly of the heating element and the inner pot and the heat insulation cover.

[0030] In one embodiment, the inner pot is made of ceramic material.

[0031] Ceramic materials have good heat insulation performance and are suitable for stewing food. However, on the one hand, the thermal conductivity of the ceramic inner pot is low, and it is easy to have uneven heating. On the other hand, the ceramic inner pot has poor thermal shock resistance, and there is a risk of cracking when it is directly in contact with the heating element locally during heat shock. Therefore, by arranging a heating element that wraps the bottom wall and side wall of the inner pot outside the ceramic inner pot, and the heating element includes a magnetic conduction part located within the magnetic field range of the electromagnetic heating coil disc, when the electromagnetic heating coil disc works, the magnetic conduction part of the heating element is heated and conducts heat to the entire heating element, so as to achieve three-dimensional heating of the ceramic inner pot and achieve the effect of uniform heating. Description of the Drawings

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0033] Figure 1 It is a cross-sectional view of a cooking appliance according to an embodiment of the present application;

[0034] Figure 2 It is an exploded half-sectional structure diagram of a cooking appliance according to an embodiment of the present application;

[0035] Figure 3 It is a three-dimensional view of a heating element according to an embodiment of the present application;

[0036] Figure 4 It is a cross-sectional view of another section of a cooking appliance according to an embodiment of the present application;

[0037] Figure 5 For Figure 4 The partial enlarged view at A in

[0038] Reference numerals: 10, cooking appliance body; 12, heat insulation cover; 20, inner pot; 30, electromagnetic heating coil disc; 31, IH heating coil; 32, positioning through hole; 40, heating element; 41, heating bottom wall; 411, positioning post; 42, heating side wall; 43, partition groove; 50, elastic member; 60, stop member; 70, temperature measuring member. Detailed Embodiments

[0039] To make the above objects, features, and advantages of the present application more apparent and understandable, the following provides a detailed description of the specific embodiments of the present application in conjunction with the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0040] It should be noted that when a component is referred to as "fixed to" or "disposed on" another component, it can be directly on the other component or there may also 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 at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right", and similar expressions used in the specification of the present application are only for the purpose of illustration and do not represent the only implementation manner.

[0041] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0042] In the present application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first feature is in direct contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over", and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or only indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath", and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature has a lower horizontal height than the second feature.

[0043] Unless otherwise defined, all technical and scientific terms used in the specification of the present application have the same meaning as commonly understood by those skilled in the technical field to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used in the specification of the present application includes any and all combinations of one or more of the related listed items.

[0044] Please refer to Figures 1 to 3, this application provides a cooking appliance, including: a pot body 10, an inner pot 20, an electromagnetic heating coil disk 30, and a heating element 40. The inner pot 20, the electromagnetic heating coil disk 30, and the heating element 40 are all arranged inside the pot body 10. The heating element 40 includes a heating bottom wall 41 and a heating side wall 42 connected to the periphery of the heating bottom. The inner pot 20 is arranged inside the heating element 40. The electromagnetic heating coil disk 30 is arranged at the bottom and / or side of the inner cavity of the pot body 10. The heating element 40 includes a magnetic conduction part, and at least part of the magnetic conduction part is within the magnetic field range of the electromagnetic heating coil disk 30. In this way, when the electromagnetic heating coil disk 30 is energized to generate a magnetic field, the magnetic conduction part of the heating element 40 generates heat to heat the inner pot 20. Thus, this cooking appliance can generate heat energy through electromagnetic heating (i.e., IH heating) of the heating element 40, and heat the inner pot 20 and the food in the inner pot 20 through the heating element 40. In this application, the heating element 40 is not sprayed on the outer wall of the inner pot 20. The heating element 40 and the inner pot 20 are two independent components. Therefore, the heating element 40 can be processed separately. Compared with the prior art of forming a heating element on the outer wall of the inner pot by spraying a magnetic conduction layer, the processing technology of the heating element 40 in this application is simpler. In addition, since the heating element 40 includes a heating bottom wall 41 and a heating side wall 42, and the inner pot 20 is arranged inside the heating element 40, the heating element 40 can form three-dimensional heating, so that the inner pot 20 and the food in it are heated evenly, thus greatly improving the heating efficiency.

[0045] In this embodiment, the inner pot 20 can be taken out of the heating element 40 or put into the heating element 40. In this way, it is very convenient to use and easy to clean the inner pot 20. The heating element 40 is set to be non-removably arranged in the pot body 10. In this way, it can be avoided that the heating element 40 is taken out when the inner pot 20 is removed.

[0046] In one embodiment, the inner pot 20 is made of ceramic material, that is, the inner pot 20 is a ceramic pot. The ceramic material has good heat preservation performance and is suitable for stewing food.

[0047] Furthermore, the shape and size of the top surface of the heating bottom wall 41 match the shape and size of the outer surface of the bottom wall of the inner pot 20. In this way, the heating bottom wall 41 can be close to or closely attached to the outer surface of the bottom wall of the inner pot 20, which is beneficial to the heating bottom wall 41 heating the bottom wall of the inner pot 20 and improving the heating efficiency. It is worth mentioning that "the shape and size match" does not mean that the shape and size are the same. As long as the heating bottom wall 41 wraps around the outside of the bottom wall of the inner pot 20, and the heating bottom wall 41 and the bottom wall of the inner pot 20 are in contact or have a gap, it can be regarded that the shape and size of the top surface of the heating bottom wall 41 match the shape and size of the outer surface of the bottom wall of the inner pot 20. Preferably, the heating bottom wall 41 is closely attached to the bottom wall of the inner pot 20, so that contact heat transfer can be realized and the heating efficiency is higher.

[0048] Further, the shape and size of the inner surface of at least part of the heating sidewall 42 match the shape and size of the outer sidewall of the inner pot 20. In this way, the heating sidewall 42 can be close to or closely attached to the sidewall of the inner pot 20, which is conducive to the heating sidewall 42 heating the sidewall of the inner pot 20 and improving the heating efficiency. Similarly, "matching in shape and size" does not mean the same in shape and size. As long as the heating sidewall 42 wraps around the outer side of the sidewall of the inner pot 20, whether the heating sidewall 42 is in contact with or has a gap with the sidewall of the inner pot 20 can be regarded as the shape and size of the inner surface of at least part of the heating sidewall 42 matching the shape and size of the outer sidewall of the inner pot 20. Preferably, the heating sidewall 42 is closely attached to the sidewall of the inner pot 20, so that contact heat transfer can be achieved and the heating efficiency is higher.

[0049] Further, please refer to Figure 3 , a plurality of circumferentially distributed partition grooves 43 are formed in the heating member 40. The partition grooves 43 penetrate the inner and outer surfaces of the heating member 40, and the partition grooves 43 extend downward from the top end of the heating sidewall 42 to the heating bottom wall 41. The partition grooves 43 divide the heating sidewall 42 into a plurality of lobes. In this way, the heating member 40 has a multi-lobe structure, and the heating sidewall 42 has a tendency to converge towards the center. As long as the outer diameter of the inner pot 20 is greater than the inner diameter of the heating sidewall 42 in its natural state, when the inner pot 20 is installed in the pot body 10, the heating sidewall 42 of the heating member 40 can be elastically deformed to closely adhere to the sidewall of the inner pot 20 by itself, which is conducive to improving the heat transfer efficiency and heat transfer uniformity. Moreover, the heating member 40 arranged in this way can adapt to inner pots 20 with different size deviations, avoiding the problem of low heat transfer efficiency caused by the gap between the heating member 40 and the inner pot 20.

[0050] Further, the electromagnetic heating coil disk 30 has an IH heating coil 31, and the magnetic conduction part is arranged corresponding to the IH heating coil 31. In this way, the magnetic conduction part is within the magnetic field range generated by the energization of the IH heating coil 31. Thus, starting the electromagnetic heating coil disk 30 can make the magnetic conduction part generate heat, and then the magnetic conduction part transfers heat to other parts of the heating member 40 and transfers heat to the inner pot 20, thereby heating the food in the inner pot 20.

[0051] In one embodiment, the electromagnetic heating coil disk 30 is arranged at the bottom of the inner cavity of the pot body 10, and the heating bottom wall 41 includes a magnetic conduction part. In this way, the magnetic conduction part is easily within the magnetic field range of the electromagnetic heating coil disk 30, and the structure is very compact.

[0052] Please refer to Figure 1 and Figure 2, in this embodiment, the electromagnetic heating coil disk 30 is arranged below the inner pot 20. In this way, the electromagnetic heating coil disk 30 occupies a small space and is easy to install. Further, in the orthographic projection on the horizontal plane, the heating bottom wall 41 at least partially covers the IH heating coil 31. It can be understood that "the heating bottom wall 41 at least partially covers the IH heating coil 31" means that the heating bottom wall 41 can cover a part of the IH heating coil 31 or can cover all of the IH heating coil 31 (i.e., completely cover the IH heating coil 31). In this way, it is ensured that at least a part of the heating bottom wall 41 is within the magnetic field range of the IH heating coil 31, so that the heating bottom wall 41 can generate heat energy and transfer it to the heating side wall 42 and the inner pot 20.

[0053] Further, please refer to Figure 1 , the distance L1 between the heating bottom wall 41 and the IH heating coil 31 is 5 mm to 15 mm. In this way, it is ensured that the heating bottom wall 41 is within the magnetic field range of the IH heating coil 31 and has a good heating effect. In some specific embodiments, L1 can be 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, or any other arbitrary value within the range of 5 mm to 15 mm.

[0054] In another embodiment, the electromagnetic heating coil disk 30 is arranged at the side part of the inner cavity of the pot body 10, and the heating side wall 42 includes a magnetic conduction part. In this way, the magnetic conduction part is easily within the magnetic field range of the electromagnetic heating coil disk 30, and the structure is very compact.

[0055] In this embodiment, the heating bottom wall 41 and the heating side wall 42 are of an integral structure, which has a simple structure, is easy to process, and has a good heat transfer effect. In this embodiment, the heating element 40 is made of magnetic conductive metal. Further, the heating element 40 is made of non - rust iron. Since the heating bottom wall 41 and the heating side wall 42 are of an integral structure, that is, both the heating bottom wall 41 and the heating side wall 42 are made of non - rust iron. In this way, any part of the heating bottom wall 41 and / or the heating side wall 42 can quickly transfer heat to other parts by self - heating, so that the heat is evenly distributed, the bottom wall and the side wall of the inner pot 20 can be evenly heated, and the heating efficiency is greatly improved.

[0056] Please refer to Figure 4 and Figure 5 , further, an elastic member 50 is arranged below the heating bottom wall 41, and the elastic member 50 applies an upward moving force to the heating element 40 to make the heating bottom wall 41 abut against the bottom wall of the inner pot 20. In this way, the heating element 40 can adapt to the inner pot 20 with different height deviations, ensure that the heating bottom wall 41 is in contact with the bottom wall of the inner pot 20, so that the heating element 40 heats the inner pot 20 by means of contact heat transfer, making the inner pot 20 heated more evenly and improving the heating efficiency.

[0057] In this embodiment, the electromagnetic heating coil disk 30 is disposed at the bottom of the inner cavity of the pot body 10, and the elastic member 50 abuts against the heating bottom wall 41 and the electromagnetic heating coil disk 30. In this way, the elastic member 50 can also ensure that the distance between the heating bottom wall 41 and the IH heating coil 31 is a preset distance, ensuring that the heating bottom wall 41 is within the magnetic field range of the IH heating coil 31. However, it is not limited thereto. In other embodiments, when the electromagnetic heating coil disk 30 is disposed at the bottom of the inner cavity of the pot body 10, the elastic member 50 can also pass through the electromagnetic heating coil disk 30 and abut against the heating bottom wall 41 and the bottom wall of the pot body 10. In this way, the bottom wall of the pot body 10 can provide a supporting force for the elastic member 50, so that the elastic member 50 can apply an upward elastic force to the heating member 40, making the heating bottom wall 41 closely fit the bottom wall of the inner pot 20. It can be understood that the electromagnetic heating coil disk 30 abutting against the bottom wall of the pot body 10 can be directly abutting against the bottom wall of the pot body 10, or can be abutting against the bottom wall of the pot body 10 through a centering element. For example, the bottom wall of the pot body 10 is provided with a bracket, and the lower end of the elastic member 50 abuts against the bracket.

[0058] Further, the heating bottom wall 41 is provided with a positioning post 411, and the elastic member 50 is sleeved on the positioning post 411. In this way, the positioning post 411 can limit the elastic member 50 to prevent the elastic member 50 from falling off during use. In this embodiment, the elastic member 50 is a compression spring, which has good elasticity, a simple structure, and is easy to install. However, it is not limited thereto. In other embodiments, the elastic member 50 can also be a polymer material elastomer.

[0059] Further, the electromagnetic heating coil disk 30 is provided with a positioning through hole 32, and the positioning post 411 passes through the positioning through hole 32. In this way, the positioning through hole 32 can position the positioning post 411, and the cooperation of the positioning post 411 and the positioning hole limits the installation position of the heating member 40 on the electromagnetic heating coil disk 30, so that the heating member 40 can be quickly installed in the pot body 10 during assembly.

[0060] As Figure 5 shown, a stop member 60 is connected to the lower end of the positioning post 411, and the stop member 60 stops on the side of the positioning through hole 32 away from the heating bottom wall 41. In this way, by providing the stop member 60, the positioning post 411 is prevented from coming out of the positioning through hole 32, so that the heating member 40 and the electromagnetic heating coil disk 30 are connected together, and the heating member 40 will not be taken out by the inner pot 20 when the inner pot 20 is taken out.

[0061] In this embodiment, the stopper 60 is a screw provided with a stop ring, which is threadedly connected to the positioning column 411 and is blocked at the side of the positioning through hole 32 away from the heating bottom wall 41 by the stop ring, so that the heating element 40 and the electromagnetic heating coil disk 30 can be assembled and connected. The structure of the stopper 60 is very simple and the installation is also very convenient. However, it is not limited to this. In other embodiments, the stopper can also be a clamping ring, and a clamping groove can be provided at the lower end of the positioning column. The clamping ring is clamped in the clamping groove, which can also prevent the positioning column from falling out of the positioning through hole.

[0062] In an embodiment in which the electromagnetic heating coil disk 30 is arranged on the side of the inner cavity of the pot body 10, the elastic member 50 can be configured to abut against the heating bottom wall 41 and the bottom wall of the pot body 10. In this way, the bottom wall of the pot body 10 can provide support force to the elastic member 50, so that the elastic member 50 can apply an upward elastic force to the heating member 40, so that the heating bottom wall 41 is tightly fitted to the bottom wall of the inner pot 20.

[0063] For further information, see Figure 1 and Figure 2 A heat preservation cover 12 is also provided in the pot body 10, and the heat preservation cover 12 is provided on the outer peripheral side of the heating element 40, and the two ends of the heat preservation cover 12 are respectively connected to the pot body 10 and the electromagnetic heating coil disk 30. The heat preservation cover 12 can play a role of heat preservation and reduce heat loss on the one hand, and can play a role of heat insulation and reduce the heating of the outer wall of the pot body 10 on the other hand.

[0064] For further information, see Figure 1 , the distance between the heat preservation cover 12 and the heating side wall 42 is L2, L2 ≥ 2mm. In this way, it is ensured that there is a sufficient distance between the heat preservation cover 12 and the heating element 40, and no contact occurs, thereby avoiding the problem of assembly interference caused by manufacturing tolerance, and avoiding the deformation caused by the assembly of the heating element 40 and the inner pot 20 and the contact heat transfer with the heat preservation cover 12.

[0065] Furthermore, a temperature measuring element 70 is provided in the pot body 10, and the temperature measuring element 70 is used to detect the temperature of the bottom of the inner pot 20 or the bottom of the heating element 40. By providing the temperature measuring element 70, the temperature of the bottom of the inner pot 20 or the bottom of the heating element 40 can be detected in real time, thereby facilitating the control of the working mode of the electromagnetic heating coil disk 30.

[0066] In this embodiment, the temperature measuring member 70 is disposed through the electromagnetic heating coil disk 30 and abuts against the heating bottom wall 41, so that the temperature measuring member 70 can accurately detect the temperature of the heating bottom wall 41. However, in other embodiments, the temperature measuring member 70 can be disposed through the electromagnetic heating coil disk 30 and the heating bottom wall 41 and abut against the bottom wall of the inner pot 20, so that the temperature measuring member 70 can directly detect the temperature of the bottom wall of the inner pot 20, so that the temperature measurement is more accurate.

[0067] like Figure 1As shown, the cooking appliance provided by the present application is an electric slow cooker, but it is not limited thereto. The cooking appliance can also be a rice cooker, an electric frying pan, an electric hot pot, etc.

[0068] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

[0069] The above-described embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A cooking utensil, characterized in that: include: A pot body (10), an inner pot (20), an electromagnetic heating coil disk (30) and a heating element (40), wherein the inner pot (20), the electromagnetic heating coil disk (30) and the heating element (40) are all arranged in the pot body (10). The heating element (40) comprises a heating bottom wall (41) and a heating side wall (42) connected to the peripheral side of the heating bottom wall (41); the inner pot (20) is arranged in the heating element (40); the electromagnetic heating coil disk (30) is arranged at the bottom and / or the side of the inner cavity of the pot body (10); the heating element (40) comprises a magnetic conductive portion, and the magnetic conductive portion is at least partially located within the magnetic field range of the electromagnetic heating coil disk (30).

2. The cooking device according to claim 1, characterized in that: The shape and size of the top surface of the heating bottom wall (41) match the shape and size of the outer surface of the bottom wall of the inner pot (20), and / or the shape and size of at least part of the inner surface of the heating side wall (42) match the shape and size of the outer wall of the inner pot (20).

3. The cooking device according to claim 2, characterized in that: The heating element (40) is provided with a plurality of circumferentially distributed dividing grooves (43), the dividing grooves (43) passing through the inner and outer surfaces of the heating element (40), the dividing grooves (43) extending downward from the top of the heating side wall (42) to the heating bottom wall (41), and the dividing grooves (43) divide the heating side wall (42) into a plurality of petals.

4. The cooking device according to claim 1, characterized in that: The electromagnetic heating coil disk (30) has an IH heating coil (31), and the magnetic conductive portion is arranged corresponding to the IH heating coil (31).

5. The cooking device according to claim 4, characterized in that: The electromagnetic heating coil disk (30) is arranged at the bottom of the inner cavity of the pot body (10), and the heating bottom wall (41) includes the magnetic conductive part.

6. The cooking device according to claim 5, characterized in that: The distance L1 between the heating bottom wall (41) and the IH heating coil (31) is 5 mm to 15 mm.

7. The cooking device according to claim 4, characterized in that: The electromagnetic heating coil disk (30) is arranged on the side of the inner cavity of the pot body (10), and the heating side wall (42) includes the magnetic conductive part.

8. The cooking device according to claim 1, characterized in that: An elastic member (50) is provided below the heating bottom wall (41), and the elastic member (50) applies an upward moving force to the heating member (40), so that the heating bottom wall (41) is supported against the bottom wall of the inner pot (20).

9. The cooking device according to claim 8, characterized in that: The electromagnetic heating coil disk (30) is arranged at the bottom of the inner cavity of the pot body (10), and the elastic member (50) is supported against the heating bottom wall (41) and the electromagnetic heating coil disk (30), or is supported against the heating bottom wall (41) and the bottom wall of the pot body (10).

10. The cooking appliance according to claim 9, characterized in that The heating bottom wall (41) is provided with a positioning column (411), the elastic member (50) is sleeved on the positioning column (411), the electromagnetic heating coil disk (30) is provided with a positioning through hole (32), and the positioning column (411) is passed through the positioning through hole (32).

11. The cooking device according to claim 8, characterized in that: The electromagnetic heating coil disk (30) is arranged on the side of the inner cavity of the pot body (10), and the elastic member (50) is supported by the heating bottom wall (41) and the bottom wall of the pot body (10).

12. The cooking device according to claim 1, characterized in that: A heat preservation cover (12) is also provided in the pot body (10), and the heat preservation cover (12) is provided on the outer peripheral side of the heating element (40), and the two ends of the heat preservation cover (12) are respectively connected to the pot body (10) and the electromagnetic heating coil disk (30).

13. The cooking device according to claim 12, characterized in that: The distance between the heat-insulating cover (12) and the heating side wall (42) is L2, and L2 is ≥ 2 mm.

14. The cooking device according to any one of claims 1 to 13, characterized in that: The inner pot (20) is made of ceramic material.

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