Non-metal kitchen ware for IH heating mode

By wrapping the IH magnetically conductive coating and wear-resistant non-stick coating on the high-purity alumina liner, the electromagnetic heating body is used to generate a magnetic field for electromagnetic heating, which solves the problems of low thermal efficiency and uneven heat transfer in IH heating of non-metal kitchenware, and achieves efficient and balanced heating effects and good food taste.

CN119548031AInactive Publication Date: 2025-03-04GUANGDONG JIUDAO INTELLIGENT TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202510022275.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-07
Publication Date
2025-03-04
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

In the prior art, when using non-metal kitchenware for IH electromagnetic heating, the thermal efficiency is low, the heat transfer is uneven, and the weight of the inner liner is increased, affecting the taste of the food.

Method used

A non-metallic kitchenware for IH heating is designed, using a high-purity alumina material inner liner, and the IH magnetically conductive coating and wear-resistant non-stick coating are wrapped around it, and a magnetic field is generated by the electric heating body to achieve electromagnetic heating.

Benefits of technology

It achieves balanced heat transfer of non-metallic materials, improves heating efficiency, reduces the weight of the inner liner, and ensures the taste and safety of the food, overcoming the disadvantages of uneven thermal conductivity and excessive weight of the traditional inner liner.

✦ Generated by Eureka AI based on patent content.

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Abstract

The nonmetal kitchen ware comprises a main body pot and an electric heating main body, the electric heating main body is arranged on the inner bottom wall of the main body pot, a pot cover assembly is arranged at the top of the main body pot, an inner container is arranged in the main body pot, and the inner container is located above the electric heating main body and attached to the electric heating main body; the inner container is integrally wrapped with an IH magnetic conductive coating, the IH magnetic conductive coating is provided with a wear-resistant non-stick coating, a protective layer is arranged outside the main body pot, and a slot is formed in the top of the main body pot. The invention belongs to the technical field of kitchen appliances, and particularly relates to a non-metal kitchen ware for an IH heating mode, an IH magnetic conductive coating is arranged to wrap an inner container in all directions so as to play a role in electromagnetic heating of a non-metal material, and meanwhile, the inner container is made of high-purity aluminum oxide which has the characteristic of light weight, so that the weight is reduced; and the IH magnetic conductive coating integrally wraps the inner container, so that the effect of balancing heat transfer can be achieved, and the taste of food is not affected.
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Description

Technical Field

[0001] The invention belongs to the technical field of kitchen appliances, and in particular refers to a non-metallic kitchen appliance used in an IH heating mode. Background Art

[0002] IH heating is an electromagnetic induction heating technology. Its working principle is to generate an alternating magnetic field through an electronic circuit board. When an iron-containing container is placed in the magnetic field, the metal part of the container surface will generate an alternating current (eddy current). The eddy current causes the iron atoms at the bottom of the container to move at high speed and generate heat energy, thereby heating the ingredients in the pot. At present, most rice cookers on the market still use traditional metal inner pots for heating. Since iron pots or enamel pots do not absorb water and cannot release calcium, potassium, magnesium and other trace elements required by the human body, as consumers' demand for healthy diets increases, more and more people tend to choose rice cooker inner pots made of non-metallic materials such as ceramics and glass. These non-metallic materials are not only more environmentally friendly and easier to clean due to their natural properties, but they cannot generate heat through electromagnetic induction like metals, so how to achieve efficient heating of non-metallic inner pots has become an urgent problem to be solved.

[0003] For traditional rice cookers with metal linings, the general method is to generate heat through the heating plate at the bottom and transfer it to the food, that is, to add a layer of metal foil on the outside of the non-metallic lining to indirectly achieve the IH electromagnetic heating function; although this method is feasible, the presence of the intermediate medium causes a decrease in thermal efficiency and increases the weight of the lining, and the additional addition of metal foil will cause uneven heat transfer, which not only increases energy waste but also affects the final taste of the food. Summary of the invention

[0004] The technical problem to be solved by the present invention is that the existing technologies mostly implement IH electromagnetic heating by adding metal sheets, which will result in low thermal efficiency, uneven heat transfer and increased weight of the inner pot. The uneven heat transfer will also affect the taste of the food and has great limitations.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows:

[0006] A non-metallic kitchen utensil for IH heating comprises a main pot and an electric heating main body, wherein the electric heating main body is arranged on the inner bottom wall of the main pot, a pot cover assembly is arranged on the top of the main pot, an inner pot is arranged in the main pot, the inner pot is located above the electric heating main body and is arranged in close contact with the electric heating main body, an IH magnetic conductive coating is integrally wrapped on the inner pot, a wear-resistant non-stick coating is arranged on the IH magnetic conductive coating, a protective layer is arranged on the outside of the main pot, and a slot is arranged on the top of the main pot.

[0007] Preferably, the inner liner is made of high-purity alumina with a content of 95% Al2O3. Alumina has the advantages of high hardness, wear resistance, high temperature stability and chemical stability and is light in weight.

[0008] Preferably, the IH magnetic conductive coating is made of nickel-based alloy powder, which has high-performance magnetic properties.

[0009] Preferably, the wear-resistant non-stick coating material is polytetrafluoroethylene (PTFE) to improve the durability and easy-to-clean properties of the product. Under normal circumstances, polytetrafluoroethylene (PTFE) hardly reacts chemically with any substance, ensuring that no harmful substances are released into the food during the cooking process, thereby ensuring the original flavor and safety of the food.

[0010] Preferably, the protective layer is provided with multiple layers and is made of ABS material, which has excellent properties such as high strength, high toughness, and high temperature resistance, and can be made into various shapes through injection molding technology.

[0011] Preferably, the pot cover assembly comprises a pot cover body, a plug-in is provided on the pot cover body corresponding to the slot, and a protrusion is provided on the pot cover body corresponding to the top opening of the inner pot.

[0012] Preferably, a silicone sealing layer is evenly provided on the plug-in to achieve a good sealing effect.

[0013] Preferably, a handle is provided on the top of the pot cover body, and side ears are symmetrically provided on the outer wall of the main pot.

[0014] Preferably, it also includes an overheating protection component, which includes a temperature sensor. The temperature sensor is arranged at the center of the bottom wall inside the main pot and fits the bottom of the inner pot. A temperature control module is arranged outside the main pot, and the temperature sensor is electrically connected to the temperature control module.

[0015] The beneficial effects achieved by the present invention using the above structure are as follows:

[0016] By setting up an IH magnetic coating to wrap the inner pot in all directions, it can play the role of electromagnetic heating for non-metallic materials. At the same time, the high-purity alumina material of the inner pot has the characteristics of being lighter and reducing weight. The IH magnetic coating can wrap the entire inner pot to achieve balanced heat transfer, achieve the purpose of energy saving, and also ensure that the taste of food is not affected, overcoming the disadvantages of uneven heat conduction and excessive weight of traditional inner pots. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The structure of the embodiment of the present invention is shown in FIG. Figure 1 ;

[0018] Figure 2 The cross-sectional structure of an embodiment of the present invention is shown in FIG. Figure 1 ;

[0019] Figure 3 The cross-sectional structure of an embodiment of the present invention is shown in FIG. Figure 2 ;

[0020] Figure 4 The cross-sectional structure of an embodiment of the present invention is shown in FIG. Figure 3 ;

[0021] Figure 5 The cross-sectional structure of an embodiment of the present invention is shown in FIG. Figure 4 ;

[0022] Figure 6 The cross-sectional structure of an embodiment of the present invention is shown in FIG. Figure 5 ;

[0023] Figure 7 The cross-sectional structure of an embodiment of the present invention is shown in FIG. Figure 6 .

[0024] Among them; 1. Main pot; 2. Electric heating body; 3. Pot cover assembly; 4. Inner pot; 5. IH magnetic coating; 6. Wear-resistant non-stick coating; 7. Protective layer; 8. Slot; 9. Pot cover body; 10. Plug-in; 11. Bump; 12. Silicone sealing layer; 13. Handle; 14. Side ear; 15. Overheat protection assembly; 16. Temperature sensor; 17. Temperature control module. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0026] like Figure 1-2 As shown in 5-6, a non-metallic kitchen utensil for IH heating method includes a main pot 1 and an electric heating main body 2, the electric heating main body 2 is arranged on the inner bottom wall of the main pot 1, a pot cover assembly 3 is arranged on the top of the main pot 1, an inner pot 4 is arranged in the main pot 1, the inner pot 4 is located above the electric heating main body 2 and is arranged in close contact with the electric heating main body 2, an IH magnetic conductive coating 5 is provided on the inner pot 4 as a whole, a wear-resistant non-stick coating 6 is provided on the IH magnetic conductive coating 5, a protective layer 7 is provided on the outside of the main pot 1, a slot 8 is provided on the top of the main pot 1, the protective layer 7 is arranged in multiple layers and is made of ABS material, has excellent properties such as high strength, high toughness, high temperature resistance, etc., and can be made into various shapes by injection molding technology.

[0027] like Figure 2 , 5As shown, the material of the inner liner 4 is high-purity alumina with a content of 95% Al2O3. Alumina has the advantages of high hardness, wear resistance, high temperature stability and chemical stability and is light in weight. The material of the IH magnetic conductive coating 5 is nickel-based alloy powder, which has high performance magnetic properties.

[0028] like Figure 2 As shown, the wear-resistant non-stick coating 6 is made of polytetrafluoroethylene (PTFE) to improve the durability and easy-to-clean properties of the product. Under normal circumstances, polytetrafluoroethylene (PTFE) hardly reacts chemically with any substance, ensuring that no harmful substances are released into the food during the cooking process, thereby ensuring the original flavor and safety of the food.

[0029] like Figure 1-5 As shown in , 7, the pot cover assembly 3 includes a pot cover body 9, a plug-in 10 is provided on the pot cover body 9 corresponding to the slot 8, a bump 11 is provided on the pot cover body 9 corresponding to the top opening of the inner pot 4, a silicone sealing layer 12 is evenly provided on the plug-in 10 to achieve a good sealing effect, a handle 13 is provided on the top of the pot cover body 9, and side ears 14 are symmetrically provided on the outer wall of the main pot 1.

[0030] like Figure 1-2 As shown in , 6, it also includes an overheating protection component 15, which includes a temperature sensor 16. The temperature sensor 16 is arranged at the center of the bottom wall inside the main pot 1 and fits the bottom of the inner pot 4. A temperature control module 17 is arranged outside the main pot 1, and the temperature sensor 16 is electrically connected to the temperature control module 17.

[0031] Replaceable parts: IH magnetic coating can be customized according to the size of different types of rice cookers; wear-resistant non-stick coating is also available in a variety of colors to meet personalized needs. IH magnetic coating 5 material can be replaced with cobalt-based alloy powder, wear-resistant non-stick coating 6 material can be replaced with ceramic nanomaterials, and the inner pot 4 material can also be replaced with ceramic, carbon ceramic or glass according to actual needs.

[0032] When in use, first wash the inner pot 4 and put it into the main pot 1, then cover the pot cover 9. When the main pot 1 is powered on, the changing magnetic field generated by the electric heating body 2 will form an eddy current effect on the inner pot 4 with the IH magnetic conductive coating 5, thereby generating a large amount of Joule heat to achieve the purpose of heating. The material of the inner pot 4 is 95% The high-purity alumina of Al2O3 has the advantages of high hardness, wear resistance, high temperature stability and chemical stability and is light in weight. The wear-resistant non-stick coating 6 is made of polytetrafluoroethylene PTFE to improve the durability and easy cleaning characteristics of the product. The handle 13 on the top of the pot cover body 9 and the side ears 14 on the outer wall of the main pot 1 can facilitate the lifting of the pot cover body 9 and the main pot. In summary, the device can play the role of electromagnetic heating of non-metallic materials by arranging the IH magnetic coating 5 to wrap the inner pot 4 in all directions. At the same time, the high-purity alumina material of the inner pot 4 has the characteristics of light weight to reduce weight, and the IH magnetic coating 5 wraps the inner pot 4 as a whole to play the role of balanced heat transfer to achieve the purpose of energy saving while also ensuring that the taste of food is not affected, thereby overcoming the disadvantages of uneven heat conduction and excessive weight of the traditional inner pot.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0034] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A non-metallic kitchen utensil for IH heating, comprising a main pot (1) and an electric heating main body (2), characterized in that: The electric heating body (2) is arranged on the inner bottom wall of the main pot (1); a pot cover assembly (3) is arranged on the top of the main pot (1); an inner pot (4) is arranged in the main pot (1); the inner pot (4) is located above the electric heating body (2) and is arranged in close contact with the electric heating body (2); an IH magnetic conductive coating (5) is provided on the inner pot (4); a wear-resistant non-stick coating (6) is provided on the IH magnetic conductive coating (5); a protective layer (7) is provided on the outside of the main pot (1); and a slot (8) is provided on the top of the main pot (1).

2. The non-metallic kitchenware for IH heating method according to claim 1, characterized in that: The inner liner (4) is made of high-purity aluminum oxide with a content of 95% Al2O3.

3. The non-metallic kitchenware for IH heating according to claim 1, characterized in that: The IH magnetic conductive coating (5) is made of nickel-based alloy powder.

4. The non-metallic kitchenware for IH heating according to claim 1, characterized in that: The material of the wear-resistant non-stick coating (6) is polytetrafluoroethylene (PTFE).

5. The non-metallic kitchenware for IH heating according to claim 1, characterized in that: The protective layer (7) is provided with multiple layers and is made of ABS material.

6. The non-metallic kitchenware for IH heating according to claim 1, characterized in that: The pot cover assembly (3) comprises a pot cover body (9), a plug-in unit (10) is provided on the pot cover body (9) corresponding to the slot (8), and a convex block (11) is provided on the pot cover body (9) corresponding to the top opening of the inner pot (4).

7. The non-metallic kitchenware for IH heating according to claim 6, characterized in that: A silicone sealing layer (12) is evenly provided on the plug-in unit (10).

8. The non-metallic kitchenware for IH heating according to claim 6, characterized in that: A handle (13) is provided on the top of the pot cover body (9), and side ears (14) are symmetrically provided on the outer wall of the main pot (1).

9. According to claim 1, it also includes an overheating protection component (15), and the overheating protection component (15) includes a temperature sensor (16). The temperature sensor (16) is arranged at the center of the bottom wall inside the main pot (1) and is attached to the bottom of the inner pot (4). A temperature control module (17) is arranged outside the main pot (1), and the temperature sensor (16) is electrically connected to the temperature control module (17).