Flexible transparent heating vegetable warming film

Abstract

The utility model discloses a flexible transparent dish heating film which comprises a transparent flexible base material, a transparent electrode material layer, a positive electrode, a negative electrode, a power line and a power controller. The transparent electrode material layer is arranged on the transparent flexible base material and comprises a plurality of heating units; the transparent electrode material layer is arranged on the transparent flexible base material, the plurality of heating units are arranged on the transparent electrode material layer to serve as heating areas of dishes, the positive electrode power transmission line and the negative electrode power transmission line serve as conveying channels, grid areas which are densely distributed are formed in the heating units, resistance is large, and therefore the heating efficiency is improved. And a large amount of heat can be released when being electrified, so that different dishes can be conveniently heated, and meanwhile, energy is not wasted. In addition, due to the adoption of the transparent flexible base material and the transparent electrode material layer with high transmittance, the permeability of the whole dish warming film is high, original table top textures cannot be shielded, and the attractiveness is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of warm food plates, and more specifically, to a flexible transparent heating warm food film. Background Art

[0002] With the progress of society and the development of technology, people's requirements for the quality of life are constantly increasing, especially in the pursuit of dining. They hope to have a hot meal in winter. Therefore, warm food plates have become more and more popular in modern families. A warm food plate can keep the temperature of food in cold winter and maintain the best taste. Especially when there are many dishes, it can prevent food from getting cold due to being served at different times. Existing warm food plates, as a kind of heating appliance, can essentially be regarded as resistance heaters. Therefore, their surface materials not only need good heat conduction performance but also good heat resistance, such as glass, silica gel, and metal. Commonly used is a metal heating plate, which has the best heat conduction and heat resistance. However, due to its inability to be rolled up for storage, rapid heat dissipation, and large weight, it has great limitations. In addition, most warm food plates are opaque and will block the original desktop texture. Content of the Utility Model

[0003] The utility model provides a flexible transparent heating warm food film to solve the problems raised in the above background art. To achieve the above object, the utility model provides the following technical solution: A flexible transparent heating warm food film includes a transparent flexible substrate, a transparent electrode material layer, a positive electrode, a negative electrode, a power line, and a power controller.

[0004] The transparent electrode material layer is provided on the transparent flexible substrate and includes a plurality of heating units which are spaced apart and distributed on the transparent flexible substrate. One end of each heating unit is provided with a positive electrode power line which is connected to the positive electrode through the positive electrode power line, and the other end is provided with a negative electrode power line which is connected to the negative electrode through the negative electrode power line.

[0005] The positive electrode and the negative electrode are respectively provided on both sides of the transparent flexible substrate. One end of the power line is respectively connected to the positive electrode and the negative electrode, and the other end is connected to the power controller.

[0006] Preferably, the heating unit is a grid structure and includes multiple metal lines which form a densely arranged grid area.

[0007] Preferably, the shape of the heating unit is any one of a circle, an ellipse, a square, and a rectangle.

[0008] Preferably, the transparent electrode material layer is processed at a corresponding position of the transparent flexible substrate by any one of 3D printing, screen printing, inkjet printing, coating process, yellow lithography or laser etching.

[0009] Preferably, the material of the heating unit is any one of ITO (indium tin oxide), nano silver, metallic copper or graphene.

[0010] Preferably, the flexible transparent substrate is any one of PET (high temperature resistant polyester film), COP (cycloolefin polymer), PI (polyimide film), PVA (polyvinyl alcohol) or PEN (polyethylene naphthalate), and its shape is any one of square, rectangle or circle.

[0011] Preferably, a protective film layer is provided at the bottom of the transparent flexible substrate, and the protective film layer is a transparent structure.

[0012] Preferably, a plurality of positive electrodes and negative electrodes are respectively provided. One positive electrode and one negative electrode form an electrode unit, and each electrode unit corresponds to a heating unit and is connected to the heating unit; the electrode units are respectively connected to the power controller through the power line.

[0013] Preferably, a control module is provided on the electrode unit, and the control module can be used to make the corresponding heating unit operate with power on; an LED indicator light is also provided on the control module, and the LED indicator light is used to indicate the working state of the heating unit.

[0014] Preferably, a blank area is provided at the center of the heating unit, and a pressure sensing switch is provided on the blank area. The pressure sensing switch is connected to the positive power transmission line or the negative power transmission line.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: The present utility model is reasonably designed and has a simple structure. By providing a transparent electrode material layer on a transparent flexible substrate, a plurality of heating units are provided on the transparent electrode material layer as heating areas for dishes, and the positive power transmission line and the negative power transmission line are used as transmission channels. A densely arranged grid area is formed in the heating unit, and its resistance is relatively large. When powered on, a large amount of heat can be released, which is convenient for heating different dishes and does not waste energy at the same time. The entire warm dish film adjusts the heating power and time through a power controller, and ensures that the warm dish film will not be burned out due to overheating. When not in use, the warm dish film can be easily rolled up and stored, and is not easily soiled. In addition, due to the adoption of a transparent flexible substrate and a transparent electrode material layer with high transmittance, the entire warm dish film has strong permeability, does not block the original desktop texture, and improves the aesthetics. Description of the Drawings

[0016] Figure 1 Schematic diagram of the structure of the flexible transparent heating and food warming film according to an embodiment of the present utility model;

[0017] In Figure 1 , the corresponding relationship between the names of the components and the reference numerals in the drawings is as follows:

[0018] 1 - Transparent flexible substrate, 2 - Positive electrode, 3 - Negative electrode, 4 - Power cord, 5 - Power controller, 6 - Heating unit, 7 - Positive electrode transmission line, 8 - Negative electrode transmission line. Specific embodiments

[0019] The following further describes in detail the embodiments of the present utility model with reference to the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0020] In the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0022] Please refer to Figure 1 , the present utility model provides a flexible transparent heating and food warming film, including a transparent flexible substrate 1, a transparent electrode material layer, a positive electrode 2, a negative electrode 3, a power cord 4 and a power controller 5;

[0023] The transparent electrode material layer is disposed on the transparent flexible substrate 1, and includes a plurality of heating units 6, and the plurality of heating units 6 are spaced apart and distributed on the transparent flexible substrate 1; one end of the heating unit 6 is provided with a positive electrode transmission line 7 and is connected to the positive electrode 2 through the positive electrode transmission line 7, and the other end is provided with a negative electrode transmission line 8 and is connected to the negative electrode 3 through the negative electrode transmission line 8;

[0024] The positive electrode 2 and the negative electrode 3 are respectively disposed on two sides of the transparent flexible substrate 1; one end of the power line 4 is respectively connected to the positive electrode 2 and the negative electrode 3, and the other end is connected to the power controller 5.

[0025] In an embodiment of the present utility model, the transparent flexible substrate 1 is made of a flexible, bendable, and transparent material. Then, a transparent electrode material layer is fabricated on the surface of the transparent flexible substrate 1 by a suitable processing method. The transparent electrode material layer is made of a conductive material, either metallic or non-metallic, and is designed with a grid structure. The line width of the grid-like lines is controlled within a certain range. Due to the small line width, the grid-like transparent electrode material exhibits high light transmittance, and the visible light part can pass through the warming plate, making the entire warming plate present a transparent effect.

[0026] Different channels and suitable heating regions are constructed in the transparent electrode material layer, such as the heating unit 6 and the power transmission lines at both ends of the heating unit 6. The heating unit 6 is connected to the positive electrode 2 through the positive electrode transmission line 7 and to the negative electrode 3 through the negative electrode transmission line 8, enabling the heating unit 6 to be powered on. Since the lines of the heating unit 6 are dense, its resistance is large, and a large amount of heat can be released when powered on, thereby heating the dishes.

[0027] In this embodiment, the power line 4 is responsible for connecting the positive electrode 2 and the negative electrode 3 to the power controller 5. The entire warming film adjusts the heating power and time through the power controller 5, and ensures that the warming film will not be burned out due to overheating.

[0028] Furthermore, the connection structure between the power line 4 and the positive electrode 2 and the negative electrode 3 can be set as a detachable structure. When the warming film is needed, the power line 4 is respectively connected to the positive electrode 2 and the negative electrode 3, and the power controller 5 is started to heat the dishes. When not in use, the power line 4 can be detached, and the warming film can be easily rolled up and stored, and is not easily soiled.

[0029] Preferably, the heating unit 6 has a grid structure, which includes multiple metal lines, and the multiple metal lines form a densely arranged grid area. In this embodiment, several densely arranged grid areas are formed within the area where the heating unit 6 is located, and its resistance is large, and a large amount of heat can be released when powered on, facilitating the heating of different dishes.

[0030] Preferably, the heating unit 6 is in any one of the shapes of circular, oval, square, and rectangular. In this embodiment, the circuit layout and the shape of the densely arranged heating unit 6 can be set according to different tableware. For example, the circular heating unit 6 is suitable for round plates and circular dishes, the oval shape is suitable for long plates, such as fish plates, and the square and rectangular shapes are also applicable to plates with specific shapes. By designing the circuit layout of the heating unit 6, the warm dish board can meet various heating needs and has a better heating effect.

[0031] Preferably, the transparent electrode material layer is processed at the corresponding position of the transparent flexible substrate 1 by any one of the processes of 3D printing, screen printing, inkjet printing, coating process, yellow light lithography, or laser etching.

[0032] Preferably, the material of the heating unit 6 is any one of ITO (indium tin oxide), nano silver, metal copper, or graphene.

[0033] Preferably, the flexible transparent substrate is any one of PET (high-temperature resistant polyester film), COP (cycloolefin polymer), PI (polyimide film), PVA (polyvinyl alcohol), or PEN (polyethylene naphthalate), and its shape is any one of square, rectangular, or circular.

[0034] In the embodiment of the present invention, the warm dish film uses flexible transparent substrates such as PET / COP / PI / PVA / PEN, and then a transparent electrode material layer of materials such as ITO, nano silver, metal copper, or graphene is made on the surface of the flexible transparent substrate by methods such as 3D printing, screen printing, inkjet printing, coating process, yellow light etching process, or laser etching process. By controlling the line width, the transparent electrode material layer exhibits the characteristic of high light transmittance, and different channels and suitable heating areas are constructed to facilitate heating different dishes and reduce energy waste.

[0035] Preferably, a protective film layer is provided at the bottom of the transparent flexible substrate 1, and the protective film layer is a transparent structure. By providing the protective film layer at the bottom, the heat preservation effect can be improved, heat loss can be reduced, the heating effect of the dishes can be enhanced, and at the same time, damage to the table can be avoided.

[0036] Preferably, a plurality of the positive electrodes 2 and the negative electrodes 3 are respectively provided. One positive electrode 2 and one negative electrode 3 form an electrode unit, and each electrode unit corresponds to a heating unit 6 and is connected to the heating unit 6. The electrode units are respectively connected to the power controller 5 through the power line 4. In this embodiment, by separately setting the positive electrode 2 and the negative electrode 3 corresponding to the heating unit 6 in groups, it is convenient to individually control each heating unit 6, avoiding the situation that when there are fewer dishes, all the heating units 6 work simultaneously, resulting in energy waste.

[0037] Preferably, a control module is provided on the electrode unit. The control module can be used to make the corresponding heating unit 6 energized and operate. An LED indicator light is also provided on the control module. The LED indicator light is used to indicate the working state of the heating unit 6. By providing the control module, it is very convenient to individually control the heating unit 6 so as to turn on the heating function as needed. In order to intuitively see the working state of the heating unit 6, in this embodiment, an LED indicator light is provided beside the heating unit 6. Through the LED indicator light, it can be quickly seen which heating unit 6 is in the working state, so as to quickly place the dishes.

[0038] Preferably, a blank area is provided at the center of the heating unit 6, and a pressure sensing switch is provided on the blank area. The pressure sensing switch is connected to the positive power transmission line 7 or the negative power transmission line 8. In this embodiment, the opening or closing of the heating unit 6 can be realized through the pressure sensing switch. When the heating function is needed, the dishes are directly placed on the heating unit 6. At this time, the pressure sensing switch is squeezed and the corresponding heating unit 6 is started to heat the dishes. When the dishes are taken away or there are no dishes in this area, the pressure sensing switch controls the heating unit 6 to stop working to save energy. Through the above structural design, the automatic switching of the working state of the heating unit 6 can be realized, making it more convenient to use and effectively improving the user experience.

[0039] Compared with the prior art, the beneficial effects of the present utility model are as follows: The present utility model is reasonably designed and has a simple structure. By providing a transparent electrode material layer on a transparent flexible substrate, a plurality of heating units are provided on the transparent electrode material layer as the heating areas for dishes, and the positive power transmission line and the negative power transmission line are used as the transmission channels. A densely arranged grid area is formed within the heating unit, which has a relatively large resistance and can release a large amount of heat when energized, facilitating the heating of different dishes without wasting energy. The entire warm dish film adjusts the heating power and time through a power controller and ensures that the warm dish film will not be burned out due to overheating. When not in use, the warm dish film can be easily rolled up and stored away without getting dirty easily. In addition, due to the use of a transparent flexible substrate and a transparent electrode material layer with high transmittance, the entire warm dish film has strong permeability, does not block the original tabletop texture, and improves the aesthetic degree.

[0040] The embodiments of the present utility model are given for purposes of illustration and description, and are not exhaustive or limit the present utility model to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are chosen and described in order to better illustrate the principles and practical applications of the present utility model, and to enable those of ordinary skill in the art to understand the present utility model and design various embodiments with various modifications suitable for specific purposes.

Claims

1. A flexible transparent heating and food warming film, characterized in that, It includes a transparent flexible substrate (1), a transparent electrode material layer, a positive electrode (2), a negative electrode (3), a power line (4) and a power controller (5); The transparent electrode material layer is provided on the transparent flexible substrate and includes a plurality of heating units (6), and the plurality of heating units are distributed at intervals on the transparent flexible substrate; one end of the heating unit is provided with a positive power transmission line (7) and is connected to the positive electrode through the positive power transmission line, and the other end is provided with a negative power transmission line (8) and is connected to the negative electrode through the negative power transmission line; The positive electrode and the negative electrode are respectively provided on both sides of the transparent flexible substrate; one end of the power line is respectively connected to the positive electrode and the negative electrode, and the other end is connected to the power controller.

2. The flexible transparent heating and dish-warming film according to claim 1, wherein The heating unit is a grid structure, which includes multiple metal lines, and the multiple metal lines form a densely arranged grid area.

3. The flexible transparent heating and food warming film according to claim 2, wherein The shape of the heating unit is any one of a circle, an ellipse, and a rectangle.

4. The flexible transparent heating and dish-warming film according to claim 3, wherein The transparent electrode material layer is processed at the corresponding position of the transparent flexible substrate by any one of 3D printing, screen printing, inkjet printing, coating process, yellow lithography or laser etching.

5. The flexible transparent heating and dish-warming film according to claim 4, wherein The material of the heating unit is any one of ITO, nano silver, metal copper or graphene.

6. The flexible transparent heating and food warming film according to claim 1, wherein The flexible transparent substrate is any one of PET, COP, PI, PVA or PEN, and its shape is any one of a square, a rectangle or a circle.

7. The flexible transparent heating and food warming film according to claim 1, characterized in that, A protective film layer is provided at the bottom of the transparent flexible substrate, and the protective film layer is a transparent structure.

8. The flexible transparent heating and food warming film according to any one of claims 1 to 7, characterized in that A plurality of positive electrodes and negative electrodes are respectively provided. One positive electrode and one negative electrode form an electrode unit, and each electrode unit corresponds to a heating unit and is connected to the heating unit; the electrode units are respectively connected to the power controller through the power line.

9. The flexible transparent heating and food warming film according to claim 8, characterized in that, A control module is provided on the electrode unit, and the control module can be used to make the corresponding heating unit operate with power on; an LED indicator light is also provided on the control module, and the LED indicator light is used to indicate the working state of the heating unit.

10. The flexible transparent heating and food warming film according to claim 8, wherein, A blank area is provided at the center of the heating unit, and a pressure sensing switch is provided on the blank area, and the pressure sensing switch is connected to the positive power transmission line or the negative power transmission line.

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