Pot body and cooking utensil

Abstract

The utility model provides a pot body and a cooking utensil, and the pot body comprises a heat preservation inner container which comprises a cooking cavity; and the magnetic conductive heating layer is arranged on the inner surface of the cooking cavity. According to the pot body, the magnetic conduction heating layer is arranged on the inner surface of the cooking cavity, so that when the magnetic conduction heating layer heats food materials in the cooking cavity, heat does not need to be transmitted into the cooking cavity through the heat preservation inner container, the heating efficiency of the magnetic conduction heating layer on the food materials in the cooking cavity is improved, and the heating energy efficiency is improved. Meanwhile, the heat preservation inner container has the heat storage and heat preservation functions, the magnetic conduction heating layer is arranged on the inner surface of the heat preservation inner container, the heating efficiency can be improved through the magnetic conduction heating layer, and heat in the cooking cavity can be effectively prevented from being transmitted to the external environment through the heat preservation inner container.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of household appliances, specifically to a pot body and cooking utensil. BACKGROUND

[0002] At present, the cooking utensil with the heat preservation inner container is favored by users because of good heat preservation performance. However, when the heat preservation inner container is used to hold food materials and cooking is performed, heat needs to be transferred to the cooking cavity after passing through the heat preservation inner container, resulting in a long heating time and low effective power. SUMMARY

[0003] The utility model aims at at least solving one of the technical problems existing in the prior art or related art.

[0004] Therefore, the first aspect of the utility model provides a pot body.

[0005] The second aspect of the utility model provides a cooking utensil.

[0006] Therefore, the first aspect of the utility model provides a pot body.

[0007] The pot body provided by the utility model comprises a heat preservation inner container and a magnetically conductive heating layer. The magnetically conductive heating layer can realize heat supply to food materials in the cooking cavity through electromagnetic heating. The magnetically conductive heating layer is arranged on the inner surface of the cooking cavity, so that heat does not need to be transferred to the cooking cavity after passing through the heat preservation inner container when the magnetically conductive heating layer heats the food materials in the cooking cavity. That is, the magnetically conductive heating layer is arranged on the inner surface of the cooking cavity, which shortens the distance between the magnetically conductive heating layer and the food materials, thereby improving the heating efficiency of the magnetically conductive heating layer on the food materials in the cooking cavity and improving the heating energy efficiency. At the same time, the heat preservation inner container has the functions of heat accumulation and heat preservation. Arranging the magnetically conductive heating layer on the inner surface of the heat preservation inner container can improve the heating efficiency through the magnetically conductive heating layer and effectively prevent the heat in the cooking cavity from being transferred to the external environment through the heat preservation inner container.

[0008] The pot body provided by the utility model can have the following additional technical features:

[0009] In some technical solutions, the magnetically conductive heating layer covers at least the bottom wall of the cooking cavity and the side wall of the cooking cavity on the inner surface of the cooking cavity.

[0010] In the technical solution, the magnetically conductive heating layer covers at least the bottom wall of the cooking cavity and the side wall of the cooking cavity, which increases the area of the magnetically conductive heating layer and improves the heating efficiency of the magnetically conductive heating layer. At the same time, the increase in the area of the magnetically conductive heating layer also improves the heat preservation effect of the heat preservation inner container.

[0011] In some embodiments, optionally, the side wall of the cooking cavity is provided with a flange at an end away from the bottom wall of the cooking cavity, the flange is provided with a groove, and the magnetically conductive heating layer extends from the side wall of the cooking cavity to the flange and is embedded in the groove.

[0012] In this embodiment, the magnetically conductive heating layer extends to the flange of the cooking cavity and is embedded in the groove on the flange, thereby increasing the connection strength between the magnetically conductive heating layer and the heat preservation liner and reducing the overall thickness at the flange position.

[0013] In some embodiments, optionally, the thickness of the heat preservation liner is greater than or equal to 4 mm and less than or equal to 8 mm.

[0014] In this embodiment, if the thickness of the heat preservation liner is too thin, the strength of the heat preservation liner will be reduced, which may cause the heat preservation liner to be easily broken or deformed, thereby affecting the heating effect. If the thickness of the heat preservation liner is too thick, the distance between the magnetically conductive heating layer on the inner side of the heat preservation liner and the coil disc will be farther, thereby failing to ensure the electrical parameters between the magnetically conductive heating layer and the coil disc, which affects the heating effect. Therefore, the thickness of the heat preservation liner is set to be between 4 mm and 8 mm to ensure the heating effect.

[0015] In some embodiments, optionally, the thickness of the magnetically conductive heating layer is greater than or equal to 50 μm and less than or equal to 600 μm.

[0016] In this embodiment, if the thickness of the magnetically conductive heating layer is too thick, the bonding force between the magnetically conductive heating layer and the heat preservation liner will be affected, and the magnetically conductive heating layer will be easily detached or cracked due to its large thermal stress. If the thickness of the magnetically conductive heating layer is too thin, the electrical parameters will not be sufficient, which affects the heating power. Therefore, the thickness of the magnetically conductive heating layer is designed to be between 50 μm and 600 μm, which can ensure the bonding force between the magnetically conductive heating layer and the heat preservation liner and the heating power.

[0017] In some embodiments, optionally, the magnetically conductive heating layer comprises any one of a ferrite stainless steel coating, a nickel alloy coating, a high-temperature alloy coating, and a chromium alloy coating.

[0018] In this embodiment, the magnetically conductive heating layer comprises any one of a ferrite stainless steel coating, a nickel alloy coating, a high-temperature alloy coating, and a chromium alloy coating, which can ensure the heating efficiency and has good stability and manufacturability.

[0019] In some embodiments, optionally, the pot further comprises a protective layer arranged on the side of the magnetically conductive heating layer away from the heat preservation liner.

[0020] In the technical scheme, the pot body further comprises a protective layer, the protective layer is arranged on the side of the magnetically conductive heating layer away from the heat preservation inner container, so as to protect the magnetically conductive heating layer and avoid damage to the magnetically conductive heating layer during cooking or cleaning. At the same time, the protective layer can also play an anti-corrosion role during cooking, thereby increasing the service life of the pot body.

[0021] In some technical schemes, optionally, the protective layer comprises any one of the following: an enamel layer, a Teflon coating layer, and a ceramic glaze layer.

[0022] In the technical scheme, the protective layer is any one of the enamel layer, the Teflon coating layer, and the ceramic glaze layer, which can not only play a role in preventing sticking, but also protect the magnetically conductive heating layer.

[0023] In some technical schemes, optionally, the pot body further comprises a waterproof layer arranged between the magnetically conductive heating layer and the heat preservation inner container and / or arranged on the outer surface of the heat preservation inner container.

[0024] In the technical scheme, the pot body further comprises a waterproof layer arranged between the heat preservation inner container and the magnetically conductive heating layer, so as to prevent liquid in the cooking cavity from entering the holes of the heat preservation inner container, thereby avoiding the situation of liquid leakage of the pot body, improving the safety performance and reliability of the pot body, and preventing the situation of mold growth of the heat preservation inner container caused by liquid entering the heat preservation inner container, thereby affecting the health of the user. The waterproof layer can also be arranged on the outer surface of the heat preservation inner container, thereby playing a waterproof role on the outer surface of the heat preservation inner container, avoiding the situation of mold growth of the heat preservation inner container caused by liquid entering the heat preservation inner container from the holes of the heat preservation inner container during cleaning of the pot body.

[0025] In some technical schemes, optionally, the waterproof layer comprises any one of the following: a ceramic glaze layer and an enamel layer.

[0026] In the technical scheme, the waterproof layer is a ceramic glaze layer or an enamel layer, which can not only play a waterproof role, but also be corrosion-resistant.

[0027] In some technical schemes, optionally, the waterproof layer and the heat preservation inner container are in an integrated structure.

[0028] In the technical scheme, the waterproof layer and the heat preservation inner container are in an integrated structure, thereby improving the reliability between the waterproof layer and the heat preservation inner container, and avoiding the protective layer from falling off.

[0029] In some technical schemes, optionally, the heat preservation inner container comprises a non-metallic inner container.

[0030] In the technical scheme, the heat preservation inner container comprises a non-metallic inner container, and the non-metallic inner container has a low thermal conductivity, thereby making the heat preservation inner container have good heat preservation performance.

[0031] In some technical solutions, the non-metal inner container comprises a ceramic inner container.

[0032] In this technical solution, the ceramic inner container has good heat storage and heat preservation performance and is safe, and thus the ceramic inner container and the magnetic conduction heating layer inside the ceramic inner container cooperate with each other, which can improve the heating efficiency and ensure the heat preservation effect.

[0033] According to the second aspect of the present application, a cooking appliance is further provided, comprising the pot body according to any one of the above technical solutions.

[0034] The cooking appliance according to the second aspect of the present application has all the beneficial effects of the pot body.

[0035] The additional aspects and advantages of the present application will become apparent from the following description, or will be appreciated by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0036] The above and / or additional aspects and advantages of the present application will become apparent from the following description, or will be appreciated by practice of the present application, in conjunction with the accompanying drawings, in which:

[0037] Figure 1 Fig. 1 shows a structural schematic view of a pot body of an embodiment of the present application;

[0038] Figure 2 Fig. 2 shows a structural schematic view of a pot body of an embodiment of the present application; Figure 1 Fig. 3 shows an enlarged structural schematic view of position A of the pot body of the embodiment shown in Fig. 2.

[0039] In the drawings, Figure 1 and Figure 2 The correspondence between the reference signs and the component names in the drawings is as follows:

[0040] 1 heat preservation inner container, 2 magnetic conduction heating layer, 3 protective layer, 4 waterproof layer, 5 cooking cavity, 50 flange. DETAILED DESCRIPTION

[0041] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the present application will be further described in detail below in conjunction with the drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0042] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can 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.

[0043] The following description will be made with reference to the drawingsFigure 1 and Figure 2 The pot body and the cooking utensil according to some embodiments of the present application are described.

[0044] As Figure 1 and Figure 2 shown, according to one embodiment of the present application, the present application provides a pot body, comprising: a heat preservation inner container 1 and a magnetic conductive heating layer 2. Specifically, the heat preservation inner container 1 comprises a cooking cavity 5, and the magnetic conductive heating layer 2 is arranged on the inner surface of the cooking cavity 5.

[0045] The pot body provided by the present application comprises a heat preservation inner container 1 and a magnetic conductive heating layer 2. The magnetic conductive heating layer 2 can realize heat supply to food materials in the cooking cavity 5 through electromagnetic heating. Moreover, the magnetic conductive heating layer 2 is arranged on the inner surface of the cooking cavity 5, so that when the magnetic conductive heating layer 2 heats the food materials in the cooking cavity 5, the heat does not need to be transmitted to the cooking cavity 5 through the heat preservation inner container 1, that is, the magnetic conductive heating layer 2 is arranged on the inner surface of the cooking cavity 5, which shortens the distance between the magnetic conductive heating layer 2 and the food materials, thereby improving the heating efficiency of the magnetic conductive heating layer 2 on the food materials in the cooking cavity 5 and improving the heating energy efficiency. At the same time, the heat preservation inner container 1 has the functions of heat accumulation and heat preservation. Arranging the magnetic conductive heating layer 2 on the inner surface of the heat preservation inner container 1 can not only improve the heating efficiency through the magnetic conductive heating layer 2, but also effectively prevent the heat in the cooking cavity 5 from being transmitted to the external environment through the heat preservation inner container 1.

[0046] It can be understood that the heat preservation inner container 1 at least has the function of heat preservation. The heat preservation inner container 1 can be made of a material with a low thermal conductivity, for example, the heat preservation inner container 1 comprises a non-metallic inner container.

[0047] In some embodiments, optionally, the magnetic conductive heating layer 2 at least covers the bottom wall of the cooking cavity 5 and the side wall of the cooking cavity 5 on the inner surface of the cooking cavity 5.

[0048] In this embodiment, the magnetic conductive heating layer 2 at least covers the bottom wall of the cooking cavity 5 and the side wall of the cooking cavity 5, which increases the area of the magnetic conductive heating layer 2, thereby improving the heating efficiency of the magnetic conductive heating layer 2. At the same time, the increase of the area of the magnetic conductive heating layer 2 also improves the heat preservation effect of the heat preservation inner container 1.

[0049] In some embodiments, optionally, the side wall of the cooking cavity 5 away from the bottom wall of the cooking cavity 5 is provided with a flange 50, the flange 50 is provided with a groove, and the magnetic conductive heating layer 2 extends to the flange 50 of the cooking cavity 5 and is embedded in the groove.

[0050] In this embodiment, the magnetic conductive heating layer 2 extends to the flange 50 of the cooking cavity 5 and is embedded in the groove on the flange 50, thereby increasing the connection strength between the magnetic conductive heating layer 2 and the heat preservation inner container 1 and reducing the overall thickness at the position of the flange 50.

[0051] In some embodiments, the thickness of the heat-insulating inner liner 1 is optionally greater than or equal to 4 mm and less than or equal to 8 mm.

[0052] In this embodiment, if the thickness of the heat-insulating inner liner 1 is too thin, it will reduce the strength of the heat-insulating inner liner, making it easy to crack or deform, thereby affecting the heating effect; if the thickness of the heat-insulating inner liner 1 is too thick, the distance between the magnetic heating layer 2 on its inner side and the coil will be greater, thus failing to guarantee the electrical parameters between the magnetic heating layer 2 and the coil, thereby affecting the heating effect. Therefore, the thickness of the heat-insulating inner liner 1 is set between 4mm and 8mm to ensure the heating effect.

[0053] Optionally, the thickness of the heat-insulating inner liner 1 is any value among 4mm, 5mm, 6mm, 7mm, and 8mm, or any value between two of these values.

[0054] In some embodiments, the thickness of the magnetic heating layer 2 is optionally greater than or equal to 50 μm and less than or equal to 600 μm.

[0055] In this embodiment, if the thickness of the magnetic heating layer 2 is too thick, it will affect the bonding force between the magnetic heating layer 2 and the heat-insulating inner liner 1, making the magnetic heating layer 2 easy to fall off or crack. If the thickness of the magnetic heating layer 2 is too thin, it will affect the heating power. Therefore, the thickness of the magnetic heating layer 2 is designed to be between 50μm and 600μm, which can ensure both the bonding force between the magnetic heating layer 2 and the heat-insulating inner liner 1 and the heating power.

[0056] Optionally, the thickness of the magnetic heating layer 2 is greater than or equal to 150 μm and less than or equal to 350 μm.

[0057] Optionally, the thickness of the magnetic heating layer 2 can be any value among 150μm, 200μm, 250μm, 300μm, and 350μm.

[0058] In some embodiments, the magnetic heating layer 2 may optionally include any of the following: ferritic stainless steel coating, nickel alloy coating, high-temperature alloy coating, or chromium alloy coating.

[0059] In this embodiment, the magnetic heating layer 2 includes any one of ferritic stainless steel coating, nickel alloy coating, high-temperature alloy coating and chromium alloy coating, which can ensure heating efficiency and have good stability and manufacturability.

[0060] Optionally, the magnetic heating layer 2 is a ferritic stainless steel coating, which enables the magnetic heating layer 2 to withstand high temperatures.

[0061] like Figure 2 As shown, in some embodiments, the pot body may optionally include a protective layer 3. Specifically, the protective layer 3 is disposed on the side of the magnetic heating layer 2 facing away from the heat-insulating inner liner 1.

[0062] In this embodiment, the pot body also includes a protective layer 3, which is disposed on the side of the magnetic heating layer 2 facing away from the heat-insulating inner liner 1 to protect the magnetic heating layer 2 and prevent damage to the magnetic heating layer 2 during cooking or cleaning. Simultaneously, the protective layer 3 also provides corrosion resistance during cooking, thereby increasing the lifespan of the pot body.

[0063] Optionally, the magnetic heating layer 2 covers the entire inner surface of the cooking cavity 5 to achieve all-round heating within the cooking cavity 5, or the magnetic heating layer 2 covers the bottom wall of the cooking cavity 5 to reduce the weight of the pot and lower manufacturing costs.

[0064] Optionally, the protective layer 3 covers the entire surface of the magnetic heating layer 2.

[0065] In some embodiments, the protective layer 3 may optionally include any of the following: an enamel glaze layer, a Teflon coating, or a ceramic glaze layer.

[0066] In this embodiment, the protective layer 3 is any one of enamel glaze, Teflon coating, or ceramic glaze, which can both prevent sticking and protect the magnetic heating layer 2.

[0067] Optionally, the magnetic heating layer 2 is a ferritic stainless steel coating, and the protective layer 3 is an enamel glaze layer. The ferritic stainless steel coating has good magnetic permeability and can withstand high temperature. It can withstand the temperature during the sintering of the enamel glaze layer and will not melt or melt.

[0068] Optionally, the sintering temperature of the enamel glaze layer is not lower than 800℃, which gives the enamel glaze layer excellent resistance to acid, alkali and hydrolysis, thus improving the protective effect.

[0069] like Figure 2 As shown, in some embodiments, the pot body may optionally further include a waterproof layer 4. Specifically, the waterproof layer 4 is disposed between the magnetic heating layer 2 and the heat-insulating inner liner 1, and / or on the outer surface of the heat-insulating inner liner 1.

[0070] In this embodiment, the pot body further comprises a waterproof layer 4 arranged between the heat preservation liner 1 and the magnetically conductive heating layer 2, so as to prevent liquid in the cooking cavity 5 from entering the hole of the heat preservation liner 1, thereby avoiding the situation of liquid leakage of the pot body, and improving the safety performance and reliability of the pot body. In addition, the waterproof layer 4 arranged between the magnetically conductive heating layer 2 and the heat preservation liner 1 can also avoid the situation that the health of the user is affected due to the mildew of the heat preservation liner 1 caused by the liquid entering the heat preservation liner 1. The waterproof layer 4 can also be arranged on the outer surface of the heat preservation liner 1, thereby playing a waterproof role on the outer surface of the heat preservation liner 1, avoiding the situation that the liquid enters the inside of the heat preservation liner 1 through the hole of the heat preservation liner 1 during cleaning of the pot body, and causing the mildew of the heat preservation liner 1.

[0071] Optionally, the waterproof layer 4 is arranged between the heat preservation liner 1 and the magnetically conductive heating layer 2, and on the outer surface of the heat preservation liner 1.

[0072] Optionally, the waterproof layer 4 is arranged on all the inner surfaces and all the outer surfaces of the heat preservation liner 1.

[0073] Optionally, the heat preservation liner 1 comprises a porous liner, and the waterproof layer 4 is arranged on the inner and outer surfaces of the porous liner.

[0074] In some embodiments, the waterproof layer 4 comprises any one of the following: a ceramic glaze layer, an enamel glaze layer.

[0075] In this embodiment, the waterproof layer 4 is a ceramic glaze layer or an enamel glaze layer, which can not only play a waterproof role, but also can resist corrosion.

[0076] Optionally, the waterproof layer 4 comprises a ceramic glaze layer.

[0077] In some embodiments, the waterproof layer 4 and the heat preservation liner 1 are in an integrated structure.

[0078] In this embodiment, the waterproof layer 4 and the heat preservation liner 1 are in an integrated structure, which improves the reliability between the waterproof layer 4 and the heat preservation liner 1, thereby avoiding the peeling of the protective layer 3.

[0079] Optionally, the waterproof layer 4 and the heat preservation liner 1 are sintered into one body.

[0080] In some embodiments, the heat preservation liner 1 comprises a non-metal liner.

[0081] In this embodiment, the heat preservation liner 1 comprises a non-metal liner, and the non-metal liner has a low thermal conductivity, thereby making the heat preservation liner 1 have good heat preservation performance.

[0082] In some embodiments, the non-metal liner comprises a ceramic liner.

[0083] In the embodiment, the ceramic inner container has good heat storage and heat preservation performance, and is high in safety, and then the ceramic inner container and the magnetic conduction heating layer 2 inside the ceramic inner container cooperate with each other, so that the heating efficiency is improved, and the heat preservation effect is ensured.

[0084] According to one embodiment of the utility model, a cooking utensil is further provided, which comprises the pot body provided in any of the above embodiments.

[0085] The cooking utensil provided by the utility model has all the beneficial effects of the pot body.

[0086] Optionally, the cooking utensil further comprises an electromagnetic heating device, and the magnetic conduction heating layer is heated under the action of the electromagnetic heating device.

[0087] Optionally, the cooking utensil comprises a rice cooker, a electric stew pot or the like.

[0088] In specific application, the pot body is divided into five layers from outside to inside, which are a ceramic glaze layer, a ceramic body (for example, a ceramic inner container), a ceramic glaze layer, a 430 coating (that is, a ferrite stainless steel coating) and an enamel glaze layer, and the enamel glaze layer directly contacts food, water or the like in the ceramic inner container. In the application, the ceramic inner container is heated by electromagnetic induction, and the 430 coating is used for electromagnetic induction heating. The ceramic body outside the 430 coating is used for heat storage and heat preservation, and the enamel glaze layer is used for protecting the 430 coating and contacting food.

[0089] In the application, the ceramic body is used for heat storage and heat preservation, and the 430 coating is used for IH (induction heat, electromagnetic heating). The production process of the whole inner container is as follows: the ceramic body is coated with a ceramic glaze layer on the inner and outer surfaces, and a ceramic body is prepared after high-temperature sintering; the 430 coating is sprayed on the inner surface of the ceramic body by thermal spraying; and the enamel coating is prepared on the surface of the 430 coating by spraying enamel glaze to form the pot body.

[0090] When the ceramic inner container works under the IH system, the 430 coating is heated by electromagnetic induction, and the heat is directly transmitted to water or food in the inner container through the enamel glaze layer. The ceramic inner container can effectively prevent heat from being transmitted to the outside because of slow heat conduction and large heat storage, and the combination of the two can greatly improve the energy efficiency of the ceramic inner container.

[0091] In the present application, the 430 coating is selected as the IH heating coating of the ceramic inner surface, mainly because it has good magnetic conductivity, and its thickness does not need to be sprayed too thick, and the thickness is between 50 μm-600 μm, and optionally, the thickness is between 150 μm-350 μm, which can meet the requirements of IH heating. If the 430 coating is too thin, the electrical parameters are not enough, and the heating power is small, and if the 430 coating is too thick, it is easy to crack during the glazing process due to its large thermal stress, and the 430 coating itself can withstand the temperature during the sintering of the enamel glaze layer without softening, melting and other phenomena.

[0092] The enamel glaze layer directly needs to be in contact with the food in the cooking cavity 5, and it is required to have excellent acid resistance, alkali resistance and hydrolysis resistance, which has certain requirements for the formula of the enamel glaze. In the present application, the formula of the enamel glaze in the enamel glaze layer mainly uses oxides such as SiO2, Al2O3, B2O3, and the sintering temperature is not less than 800℃.

[0093] Example 1: The ceramic inner liner has a 430 coating sprayed on the inner surface, and the thickness is 280 μm, and the enamel glaze layer is sintered on the 430 coating. 4L of water is placed in the cooking cavity 5, and it works under the IH system, and the heating power is 1000W, and the water temperature rises from 25℃ to 1000℃, and the boiling time is 34min.

[0094] Comparative Example 1: The 430 coating is sprayed on the outer surface of the ceramic inner liner, and the thickness is 280 μm, and 4L of water is placed in the cooking cavity 5, and it works under the IH system, and the heating power is 1000W, and the water temperature rises from 25℃ to 1000℃, and the boiling time is 60min, and the energy efficiency value is greatly reduced.

[0095] Comparative Example 2: The 430 coating is sprayed on the inner surface of the ceramic inner liner, and the thickness is 800 μm, and the enamel coating is sintered on the 430 coating. After the enamel coating is applied, it is found that the 430 coating is cracked and drives the enamel coating to crack, so that the cooking cavity 5 appears to be cracked in some areas, which causes heat to concentrate at the cracked place, and is easy to rust, and cannot be used.

[0096] Comparative Example 3: The Al (aluminum) coating is sprayed on the inner surface of the ceramic inner liner, and the thickness is 300 μm, and the enamel glaze layer is sintered on the Al coating. Because the Al coating itself cannot withstand the sintering temperature of the enamel coating, it melts above 800℃, which causes the coating to flow and the appearance to be poor and cannot be used.

[0097] The inner surface of the ceramic inner liner is sprayed with an Al coating layer with a thickness of 300 μm, and the sintering temperature of the enamel coating layer is adjusted to about 600 DEG C, considering that the Al coating layer itself is not resistant to high temperature, the ceramic inner liner prepared at this time can be normally used, and the power is good, but in the process of cooking acid and alkali, the enamel coating layer itself is not resistant to acid and alkali, reacts, and causes the inner liner to be unable to be used.

[0098] It can be seen that in the cooking utensil provided in the application, the inner surface and the outer surface of the ceramic inner liner are provided with the ceramic enamel layer, the inner surface of the ceramic enamel layer of the ceramic inner liner is provided with the 430 coating layer, the 430 coating layer is provided with the enamel coating layer, the thickness of the 430 coating layer is greater than or equal to 50 μm and less than or equal to 600 μm, and the sintering temperature of the enamel coating layer is not less than 800 DEG C, so that the heating efficiency is ensured, and the corrosion resistance and stability of the pot body are ensured.

[0099] In the present application, the term "a plurality of" refers to two or more, unless otherwise explicitly limited. The terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, "connecting" can be fixed connection, or detachable connection, or integrally connected; "connected" can be directly connected, or indirectly connected through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0100] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "a specific embodiment" and the like 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 the present application. In the present application, the illustrative description of the above terms does 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.

[0101] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A pan, characterized in that Comprising: a heat preservation liner, the heat preservation liner comprising a cooking cavity; a magnetically conductive heating layer, provided on an inner surface of the cooking cavity; the magnetically conductive heating layer covers at least the bottom wall and the side wall of the cooking cavity on the inner surface of the cooking cavity; an end of the side wall of the cooking cavity away from the bottom wall of the cooking cavity is provided with a flange, the flange is provided with a groove, and the magnetically conductive heating layer extends from the side wall of the cooking cavity to the flange and is embedded in the groove.

2. The kettle of claim 1, wherein The thickness of the heat preservation liner is greater than or equal to 4 mm and less than or equal to 8 mm.

3. The kettle of claim 2, wherein, The thickness of the magnetically conductive heating layer is greater than or equal to 50 μm and less than or equal to 600 μm.

4. The kettle of claim 3, wherein The magnetically conductive heating layer comprises any one of the following: a ferritic stainless steel coating, a nickel alloy coating, a high-temperature alloy coating, and a chromium alloy coating.

5. The pot of claim 1, wherein Further comprising: a protective layer, provided on a side of the magnetically conductive heating layer away from the heat preservation liner.

6. The kettle of claim 5, wherein, The protective layer comprises any one of the following: an enamel layer, a Teflon coating, and a ceramic glaze layer.

7. The pot of claim 1, wherein Further comprising: a waterproof layer, provided between the magnetically conductive heating layer and the heat preservation liner, and / or provided on an outer surface of the heat preservation liner.

8. The kettle of claim 7, wherein, The waterproof layer comprises any one of the following: a ceramic glaze layer and an enamel layer.

9. The kettle of claim 8, wherein, The waterproof layer and the heat preservation liner are in an integrated structure.

10. The kettle of any one of claims 1 to 9, wherein, The heat preservation liner comprises a non-metallic liner.

11. The kettle of claim 10, wherein, The non-metallic liner comprises a ceramic liner.

12. A cooking appliance characterized by, Comprising: the pot body according to any one of claims 1 to 11.

Images