Intelligent electric ceramic stove

Abstract

The invention discloses an intelligent electric ceramic cooker which comprises an electric ceramic cooker body, a heating assembly is arranged in the electric ceramic cooker body, a panel is arranged on the electric ceramic cooker body, an intelligent early warning device is arranged on the panel, a heat conduction layer is arranged in the panel, and the heat conduction layer is composed of a polymer matrix, silver nanoparticles, carbomer, Tween 80, persimmon extract and graphene. The carbomer has a cage-shaped structure. The persimmon extract and Tween 80 are added at the same time, the numerical values of the highest thermal conductivity and the minimum thermal conductivity are 48 and 45 respectively, and the difference is 3; the thermal conductivity of other test areas is 46, 46, 47, 47, 46, 46, 47; and the heat conductivity of other test areas is 46-47, and the heat conductivity tends to be consistent, so that the problem that the local temperature of the panel is too high can be effectively solved.

Description

Technical Field

[0001] The present invention relates to an intelligent electro-ceramic stove. Background Art

[0002] The electro-ceramic stove includes an electro-ceramic stove main body and a panel disposed on the electro-ceramic stove main body for supporting a cookware to be heated. A heating component is disposed in the electro-ceramic stove main body, and an alarm device is disposed at the panel. When the temperature of the panel is higher than a limit value, the alarm device gives an alarm, making it more intelligent during use.

[0003] However, in the design and transformation of the panel, there are also some problems: In order to transfer heat to the cookware better, a heat conduction layer is usually disposed in the panel. The existing heat conduction layer includes graphene and silver nanoparticles. Graphene can effectively improve the heat conduction performance of the panel, and adding silver nanoparticles at the same time can effectively shield electromagnetic radiation and reduce electromagnetic interference. However, this kind of heat conduction layer is prone to cause the problem of local high temperature of the panel. To overcome this problem, it is attempted to dispose carbomer with a unique cage structure in the heat conduction layer, and use the three-dimensional cross-linked structure of carbomer to lock the position of graphene to prevent high-temperature migration, but the effect is not ideal. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. For this reason, the present invention provides an intelligent electro-ceramic stove.

[0005] To solve the above-mentioned existing technical problems, the present invention adopts the following technical solutions:

[0006] An intelligent electro-ceramic stove includes an electro-ceramic stove main body. A heating component is disposed in the electro-ceramic stove main body. A panel is disposed on the electro-ceramic stove main body. An intelligent warning device is disposed on the panel. A heat conduction layer is disposed in the panel. The heat conduction layer is composed of a polymer matrix, silver nanoparticles, carbomer, Tween 80, persimmon extract, and graphene. The carbomer has a cage structure, and the polymer matrix, silver nanoparticles, carbomer, Tween 80, persimmon extract, and graphene are uniformly dispersed in the cage structure.

[0007] Preferably, the intelligent alarm device includes a temperature sensor disposed in the panel. A control board is connected to the temperature sensor, and a voice prompt module is connected to the control board.

[0008] Preferably, the preparation method of the heat conduction layer is as follows: Graphene and persimmon extract are mixed and reacted in hot water to obtain tannic acid-reduced graphene; The tannic acid-reduced graphene and Tween 80 are ultrasonically treated in a solvent, and a polymer matrix solution is added, and homogeneous dispersion is achieved through shear emulsification to obtain a pretreatment solution; Carbomer powder is added to the pretreatment solution, and pH is adjusted to initiate gelation; After hot pressing and forming, carbonization treatment is performed to obtain the heat conduction layer.

[0009] Preferably, the temperature of the hot pressing and forming is 80-100 °C, and the pressure is 5-10 MPa.

[0010] Preferably, the rotation speed of the shear emulsification is 1000-3000 rpm.

[0011] Preferably, the persimmon extract and graphene are mixed in a mass ratio of 1.5 to 1:2.

[0012] Preferably, the persimmon extract and the graphene are subjected to a hydrothermal reaction at 80-120 °C for 6-12 hours.

[0013] Preferably, the pH value is 6-7.

[0014] The beneficial effects of the present invention are:

[0015] The intelligent electro-ceramic stove of the present application includes an electro-ceramic stove main body. A heating component is arranged in the electro-ceramic stove main body. A panel is arranged on the electro-ceramic stove main body. An intelligent warning device is arranged on the panel. A heat conduction layer is arranged in the panel. The heat conduction layer is composed of a polymer matrix, silver nanoparticles, carbomer, tween 80, persimmon extract, and graphene. The carbomer has a cage-like structure. At the same time, persimmon extract and tween 80 are added. The numerical values of the highest thermal conductivity and the lowest thermal conductivity are 48 and 45 respectively, and the difference between them is 3. The thermal conductivities of other test areas are 46, 46, 47, 47, 46, 46, 47. The thermal conductivities of other test areas are all between 46-47, and the thermal conductivities tend to be consistent. Therefore, the problem of excessive local temperature of the panel can be effectively solved, that is, it can ensure that the heat conduction panel is evenly heated and avoid deformation and cracking, and it can also prevent the food in the pot from being burnt due to uneven heating. Description of the Drawings

[0016] The above and / or additional aspects and advantages of the present invention will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, where:

[0017] Figure 1 It is a schematic diagram of the test result of the thermal conductivity of Product 1;

[0018] Figure 2 It is a schematic diagram of the test result of the thermal conductivity of Product 2;

[0019] Figure 3 It is a schematic diagram of the test result of the thermal conductivity of Product 3;

[0020] Figure 4 It is a schematic diagram of the test result of the thermal conductivity of Product 4. Detailed Embodiments

[0021] Reference will now be made in detail to embodiments of the present invention, one or more examples of which are described below. Each example is provided by way of explanation and not limitation of the present invention. In fact, it will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the scope or spirit of the present invention. For example, features illustrated or described as part of one embodiment can be used in another embodiment to yield a still further embodiment.

[0022] Accordingly, it is intended that the present invention cover such modifications and variations that fall within the scope of the appended claims and their equivalents. Other objects, features, and aspects of the present invention are disclosed in the following detailed description or are apparent therefrom. Those of ordinary skill in the art will understand that this discussion is only a description of exemplary embodiments and is not intended to limit the broader aspects of the present invention.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terms used herein in the specification of the present invention are for the purpose of describing particular embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] Except as otherwise shown in the operating examples or otherwise indicated, all numbers expressing quantities of ingredients, physical and chemical properties, etc. used in the specification and claims are to be understood as being modified in all instances by the term "about". For example, thus, unless indicated to the contrary, the numerical parameters set forth in the foregoing specification and the appended claims are approximations, and those skilled in the art can, using the teachings disclosed herein, seek to obtain the desired properties by appropriately varying these approximations. The use of numerical ranges expressed with endpoints includes all numbers within that range and any range within that range, for example, 1 to 5 includes 1, 1.1, 1.3, 1.5, 2, 2.75, 3, 3.80, 4, and 5 and so forth.

[0025] An intelligent electro-ceramic stove, comprising an electro-ceramic stove body, wherein a heating component is arranged inside the electro-ceramic stove body, a panel is arranged on the electro-ceramic stove body, an intelligent warning device is arranged on the panel, and a heat conduction layer is arranged inside the panel; the heating principle of the heating component mentioned above belongs to a mature technical means in the technical field of the present genus, so the working principle thereof will not be described in detail herein; during use, the heat generated by the heating component is transferred to the cookware through the panel, thereby heating the food in the cookware. An intelligent warning device is connected to the panel. As Embodiment 1, the intelligent warning device takes a temperature sensor, a control board, and a voice prompt module as examples. When the temperature sensor detects that the temperature exceeds the limit value, the temperature sensor feeds back an electrical signal to the control board, and the control board controls the voice prompt module to issue an alarm to remind the user. The intelligent warning method can also be realized through text, or voice or alarm.

[0026] The following is the design principle of the heat conduction layer:

[0027] Product 1

[0028] An intelligent electro-ceramic stove, comprising an electro-ceramic stove body, wherein a heating component is arranged inside the electro-ceramic stove body, a panel is arranged on the electro-ceramic stove body, an intelligent warning device is arranged on the panel, and a heat conduction layer is arranged inside the panel. The heat conduction layer is composed of a polymer matrix, silver nanoparticles, carbomer, Tween 80, persimmon extract, and graphene. The carbomer has a cage-like structure; Graphene and persimmon extract are mixed (by mass ratio of 1.5 - 1:2), and hydrothermal reaction is carried out at 80 - 120 °C for 6 - 12 hours to obtain tannic acid-reduced graphene; Tannic acid-reduced graphene and Tween 80 (the mass ratio of tannic acid-reduced graphene to Tween 80 is 9:1) are ultrasonically treated in a solvent, and a polymer matrix solution is added (tannic acid-reduced graphene accounts for 75 - 85% of the polymer matrix solution), and homogeneous dispersion is achieved by shear emulsification (rotation speed is 1000 - 3000 rpm) to obtain a pretreatment solution; Carbomer powder is added to the pretreatment solution, and pH is adjusted to initiate gelation; After hot pressing (temperature is 80 - 100 °C, pressure is 5 - 10 MPa), carbonization treatment is carried out to obtain the heat conduction layer 1.

[0029] Product 2

[0030] An intelligent electro-ceramic stove, comprising an electro-ceramic stove main body, wherein a heating component is arranged in the electro-ceramic stove main body, a panel is arranged on the electro-ceramic stove main body, an intelligent warning device is arranged on the panel, and a heat conduction layer is arranged in the panel. The heat conduction layer is composed of a polymer matrix, silver nanoparticles, carbomer, persimmon extract, and graphene. The carbomer has a cage-like structure; graphene and persimmon extract (in a mass ratio of 1.5-1:2) are mixed, and hydrothermal reaction is carried out at 80-120°C for 6-12 hours to obtain tannic acid-reduced graphene; the tannic acid-reduced graphene is added to the polymer matrix solution (the tannic acid-reduced graphene accounts for 75-85% of the polymer matrix solution), and homogeneous dispersion is achieved by shear emulsification (at a rotation speed of 1000-3000 rpm) to obtain a pretreatment solution; carbomer powder is added to the pretreatment solution, and the pH is adjusted to initiate gelation; after hot pressing (at a temperature of 80-100°C and a pressure of 5-10 MPa), carbonization treatment is carried out to obtain the heat conduction layer 2.

[0031] Product 3

[0032] An intelligent electro-ceramic stove, comprising an electro-ceramic stove main body, wherein a heating component is arranged in the electro-ceramic stove main body, a panel is arranged on the electro-ceramic stove main body, an intelligent warning device is arranged on the panel, and a heat conduction layer is arranged in the panel. The heat conduction layer is composed of a polymer matrix, silver nanoparticles, carbomer, Tween 80, and graphene. The carbomer has a cage-like structure; graphene and Tween 80 (the mass ratio of graphene to Tween 80 is 9:1) are ultrasonically treated in a solvent, and then added to the polymer matrix solution (graphene accounts for 75-85% of the polymer matrix solution), and homogeneous dispersion is achieved by shear emulsification (at a rotation speed of 1000-3000 rpm) to obtain a pretreatment solution; carbomer powder is added to the pretreatment solution, and the pH is adjusted to initiate gelation; after hot pressing (at a temperature of 80-100°C and a pressure of 5-10 MPa), carbonization treatment is carried out to obtain the heat conduction layer 3.

[0033] Product 4

[0034] An intelligent electro-ceramic stove, comprising an electro-ceramic stove main body, wherein a heating component is arranged in the electro-ceramic stove main body, a panel is arranged on the electro-ceramic stove main body, an intelligent warning device is arranged on the panel, and a heat conduction layer is arranged in the panel. The heat conduction layer is composed of a polymer matrix, silver nanoparticles, carbomer, and graphene. The carbomer has a cage-like structure; graphene is added to the polymer matrix solution, and homogeneous dispersion is achieved by shear emulsification (at a rotation speed of 1000-3000 rpm) to obtain a pretreatment solution; carbomer powder is added to the pretreatment solution, and the pH is adjusted to initiate gelation; after hot pressing (at a temperature of 80-100°C and a pressure of 5-10 MPa), carbonization treatment is carried out to obtain the heat conduction layer 4.

[0035] Then, the thermal conductivities of the panels of Products 1 - 4 were tested. The specific test method was to define multiple test points on the panel, and the test results are as follows Figures 1-4 shown. The circled positions in the figure are the test areas, and the values marked in the test areas are the thermal conductivities.

[0036] As can be seen from the test data corresponding to Product 2 Figure 2 , the values of the highest thermal conductivity and the lowest thermal conductivity are 46 and 27 respectively, and the difference is 19; from the test data corresponding to Product 3 Figure 3 , the values of the highest thermal conductivity and the lowest thermal conductivity are 47 and 32 respectively, and the difference is 15; from the test data corresponding to Product 1 Figure 1 , the values of the highest thermal conductivity and the lowest thermal conductivity are 48 and 45 respectively, and the difference is 3.

[0037] From the above data, it can be seen that in the prior art, Product 4 locks the position of graphene through the three-dimensional cross-linked structure of carbomer to prevent high-temperature migration; Figure 4 is a schematic diagram of the thermal conductivity; we can see that the effect is not ideal, and graphene still migrates, eventually resulting in the problem of local overheating.

[0038] In Product 3, Tween 80 was added to the graphene, and it was creatively found that Tween 80 can reduce the migration of graphene in the carbomer of the cage structure. From Figure 2 it can be seen that the values of the highest thermal conductivity and the lowest thermal conductivity are 47 and 32 respectively, and the difference is 15; the thermal conductivities of other test areas are 33, 34, 42, 46, 43, 46, 45; moreover, the thermal conductivities of other test areas are all above 32, and the difference has been significantly improved.

[0039] In Product 2, persimmon extract was added during the improvement of graphene. The values of the highest thermal conductivity and the lowest thermal conductivity are 46 and 27 respectively, and the difference is 19; the thermal conductivities of other test areas are 35, 36, 37, 39, 41, 42, 42; the difference has not been improved, and there is still the problem of local overheating of the panel.

[0040] In Product 1, both persimmon extract and Tween 80 were added. The values of the highest thermal conductivity and the lowest thermal conductivity are 48 and 45 respectively, and the difference is 3; the thermal conductivities of other test areas are 46, 46, 47, 47, 46, 46, 47; the thermal conductivities of other test areas are all between 46 - 47, and the thermal conductivities tend to be consistent, so the problem of local overheating of the panel can be effectively solved.

[0041] In summary, the present technical solution discovers the synergistic effect of persimmon extract and Tween 80, which can reduce the migration of graphene in the cage-shaped carbomer, thereby solving the problem of excessive local temperature in the electro-ceramic stove panel.

[0042] Although the present invention has been described in detail with reference to the above embodiments, it is obvious to those skilled in the art from this disclosure that various changes or modifications can be made to the present invention without departing from the principles and spirit scope defined by the claims. Therefore, the detailed description of the embodiments of the present disclosure is only used to explain, rather than to limit the present invention, and the scope of protection is defined by the content of the claims.

Claims

1. An intelligent electro-ceramic stove, characterized in that, It includes a ceramic hob body, a heating component is arranged inside the ceramic hob body, a panel is arranged on the ceramic hob body, an intelligent warning device is arranged on the panel, a heat conduction layer is arranged inside the panel, and the heat conduction layer is composed of a polymer matrix, silver nanoparticles, carbomer, Tween 80, persimmon extract, and graphene. The carbomer has a cage-like structure, and the polymer matrix, silver nanoparticles, carbomer, Tween 80, persimmon extract, and graphene are uniformly dispersed in the cage-like structure.

2. An intelligent electric ceramic stove according to claim 1, characterized in that, The intelligent alarm device includes a temperature sensor arranged inside the panel. A control board is connected to the temperature sensor, and a voice prompt module is connected to the control board.

3. An intelligent electric ceramic stove according to claim 1, characterized in that, The preparation method of the heat conduction layer is as follows: Mix graphene and persimmon extract, react in hot water to obtain tannic acid-reduced graphene; ultrasonically treat tannic acid-reduced graphene and Tween 80 in a solvent, add a polymer matrix solution, and achieve homogeneous dispersion through shear emulsification to obtain a pretreatment solution; add carbomer powder to the pretreatment solution, adjust the pH to initiate gelation; after hot pressing and forming, perform carbonization treatment to obtain the heat conduction layer.

4. An intelligent electro-ceramic stove according to claim 3, characterized in that, The temperature of the hot pressing and forming is 80-100 °C, and the pressure is 5-10 MPa.

5. An intelligent electric ceramic stove according to claim 3, characterized in that, The rotation speed of the shear emulsification is 1000-3000 rpm.

6. An intelligent electric ceramic stove according to claim 3, characterized in that, The persimmon extract and graphene are mixed in a mass ratio of 1.5-1:

2.

7. An intelligent electro-ceramic stove according to claim 3, characterized in that, The persimmon extract and the graphene perform hydrothermal reaction at 80-120 °C for 6-12 hours.

8. An intelligent electro-ceramic stove according to claim 3, characterized in that, The pH value is 6-7.

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