Graphene mica heating plate with novel electrode structure

Abstract

The utility model relates to the technical field of heating plates, and discloses a graphene mica heating plate with a novel electrode structure, which comprises a mica plate main body, nickel foil layers are pressed on two sides of the mica plate main body, the tops of the nickel foil layers are flush with the top of the mica plate main body, and graphene carbon paste film layers are arranged on the tops of the nickel foil layers. And an electrode leading-out mechanism connected to the top of the nickel foil layer is arranged on one side of the graphene carbon paste film layer. According to the utility model, a novel electrode structure is adopted, the nickel foil layer is pressed on the surface of the mica plate main body to serve as a conductive electrode, and then the graphene carbon film layer is printed, so that the working procedures are reduced, the production efficiency is improved, the cost is reduced, and the operation is reliable; according to the utility model, the cost is effectively reduced, and the printing silver paste is prevented from falling off.

Description

Technical Field

[0001] The utility model relates to the technical field of heating plates, in particular to a graphene mica heating plate with a novel electrode structure. Background Art

[0002] At present, the mica heating plate includes a mica coated electric heating plate, a mica insulating protective plate, an edge protection sleeve, an electrode silver paste tape and a power wire. The mica coated electric heating plate is composed of a mica plate and a conductive film coating cured on the surface of the mica plate. The electrode silver paste tape is cured at the outer edges of the left and right sides of the conductive film coating. The mica insulating protective plate covers the side of the mica coated electric heating plate sprayed with the conductive film coating. The edge protection sleeve is fixedly installed around the mica insulating protective plate and the mica coated electric heating plate; the power wire is respectively connected to the electrode silver paste tape on both sides, and can be used after power is turned on.

[0003] The existing technology uses silver paste printing for electrodes, which is relatively expensive. The electrodes are connected by riveting, which requires many assembly steps, has poor working stability, and is easily damaged. Utility Model Content

[0004] The purpose of the utility model is to solve the problems existing in the prior art and to propose a graphene mica heating plate with a novel electrode structure.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A graphene mica heating plate with a novel electrode structure includes a mica plate main body, nickel foil layers are pressed onto both sides of the mica plate main body, the top of the nickel foil layer is flush with the top of the mica plate main body, a graphene carbon slurry film layer is provided on the top of the nickel foil layer, and an electrode lead-out mechanism connected to the top of the nickel foil layer is provided on one side of the graphene carbon slurry film layer.

[0007] Preferably, the electrode lead-out mechanism is a conductive spring.

[0008] Preferably, both sides of the mica board body are provided with an edge structure, and the edge structure is in a "concave" shape, surrounding the nickel foil layer and the mica board body.

[0009] Preferably, a compression spring plug-in fixing structure is provided on one side of the mica board body, and the conductive spring is detachably connected to the nickel foil layer through the compression spring plug-in fixing structure.

[0010] Preferably, the nickel foil layer is provided with a plurality of holes, and the sides are serrated.

[0011] Preferably, a mica paper layer is provided between the nickel foil layer and the graphene carbon slurry film layer.

[0012] Preferably, the thickness of the mica plate body is 1 mm, the thickness of the nickel foil layer is 0.03 mm, and the length is 10 mm.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The utility model adopts a new electrode structure, which presses the nickel foil layer onto the surface of the mica board main body as a conductive electrode, and then prints the graphene carbon film layer, which reduces the process steps, improves production efficiency, reduces costs, and operates reliably. Compared with the prior art method of printing silver paste on the mica board as an electrode, which has low adhesion, and the mica board is easily cracked due to high temperature deformation and complicated process, the utility model effectively reduces costs and avoids the abnormal shedding of printed silver paste. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a main view of the mica heating plate body of a graphene mica heating plate with a novel electrode structure proposed in the present invention;

[0016] Figure 2 This is a side view of a graphene mica heating plate with a novel electrode structure proposed in the present invention;

[0017] Figure 3 A top view of the main body of a mica heating plate of a graphene mica heating plate with a novel electrode structure proposed in the present invention;

[0018] Figure 4 This is a main view of the mica heating plate body of Example 2 of a graphene mica heating plate with a novel electrode structure proposed in the present invention.

[0019] In the figure: 1. Mica board main body; 2. Nickel foil layer; 3. Graphene carbon paste film layer; 4. Electrode lead-out mechanism; 5. Compression spring plug-in and fixing structure; 6. Hole body; 7. Adhesive layer; 8. Edge wrapping structure; 9. Mica paper layer. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely 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.

[0021] Example 1

[0022] Reference Figure 1 and Figure 2A graphene mica heating plate with a new electrode structure includes a mica plate main body 1, and nickel foil layers 2 are pressed on both sides of the mica plate main body 1. The top of the nickel foil layer 2 is flush with the top of the mica plate main body 1, and a graphene carbon paste film layer 3 is provided on the top of the nickel foil layer 2. One side of the graphene carbon paste film layer 3 is provided with an electrode lead-out mechanism 4 connected to the top of the nickel foil layer 2. When the electrode lead-out mechanism 4 is energized, the graphene carbon paste film layer 3 completes the heating process through the nickel foil layer 2 used as an electrode.

[0023] In this embodiment, the nickel foil layer 2 is pressed onto both sides of the mica board body 1 via an adhesive layer 7 , and the adhesive layer 7 may be made of an epoxy resin adhesive.

[0024] In this embodiment, the electrode lead-out mechanism 4 is a conductive spring.

[0025] In this embodiment, a compression spring plug-in fixing structure 5 is provided on one side of the mica board main body 1. The compression spring plug-in fixing structure 5 is frame-shaped, and the mica board main body 1 is movably inserted on one side of the compression spring plug-in fixing structure 5. The conductive spring is detachably connected to the nickel foil layer 2 through the compression spring plug-in fixing structure 5 (that is, the conductive spring is movably inserted in the compression spring plug-in fixing structure 5, and its top is against the top of the inner periphery of the compression spring plug-in fixing structure 5, and the bottom is against the top of the nickel foil layer 2). The conductive spring is made in a structure of a certain size, and the mica board main body 1 can be directly inserted into this structure. After the conductive spring presses the nickel foil, it can be powered on and used. At the same time, the conductive spring is used to energize the electrode, and can also be used as a fixed structure to suppress the deformation of the mica, making disassembly and assembly easier.

[0026] In this embodiment, the nickel foil layer 2 is provided with a plurality of holes 6, and the side edges are serrated. When the mica board is hot-pressed, the nickel foil layer 2 with serrations is placed on the surface of the mica board and hot-pressed together. At this time, the serrated positions of the nickel foil layer 2 will be squeezed into by the mica and engage with the serrated structure, thereby enhancing the bonding force between the nickel foil layer 2 and the mica board body 1, and can also be used as an electrode.

[0027] In this embodiment, the thickness of the mica board main body 1 is 1 mm. Because it is thin, the strength is weak. Because it is thick, the internal stress of the mica board due to heat deformation is large and it is easy to be damaged. The thickness of the nickel foil layer 2 is 0.03 mm and the length is 10 mm. Selecting this specification when the rated current is below 5A can make the nickel foil layer 2 reach the optimal state.

[0028] In this embodiment, a mica paper layer 9 is provided between the nickel foil layer 2 and the graphene carbon slurry film layer 3. The mica paper layer 9 is a glass fiber mica paper layer. This layer of mica paper can be hollowed out with a width of 8 mm in the electrode area (i.e., the area between the graphene carbon slurry film layer 3 and the nickel foil layer 2). While not affecting the conductivity of the underlying nickel foil layer 2, coating the graphene carbon slurry film layer 3 thereon can better enhance the carbon slurry reaction and stimulate the thermal effect.

[0029] Example 2

[0030] like Figure 3 As shown, the difference between this embodiment and embodiment 1 is:

[0031] In this embodiment, the adhesive layer 7 is not used, and a edging structure 8 is provided on both sides of the mica board main body 1. The edging structure 8 is in a "concave" shape, surrounding the nickel foil layer 2 and the mica board main body 1. The nickel foil layer 2 is pressed onto the mica board through the edging structure 8. This edging structure 8 can serve as a structure to suppress deformation of the mica board, and forms an integrated electrode structure with the nickel foil layer 2 and the mica board main body 1.

[0032] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A graphene mica heating plate with a novel electrode structure, comprising a mica plate body, characterized in that: Nickel foil layers are pressed onto both sides of the mica board body, the top of the nickel foil layer is flush with the top of the mica board body, a graphene carbon slurry film layer is provided on the top of the nickel foil layer, and an electrode lead-out mechanism connected to the top of the nickel foil layer is provided on one side of the graphene carbon slurry film layer.

2. The graphene mica heating plate with a novel electrode structure according to claim 1, characterized in that: The electrode lead-out mechanism is a conductive spring.

3. The graphene mica heating plate with a novel electrode structure according to claim 1, characterized in that: Both sides of the mica board body are provided with an edge structure, and the edge structure is in a "concave" shape, surrounding the nickel foil layer and the mica board body.

4. The graphene mica heating plate with a novel electrode structure according to claim 2, characterized in that: A compression spring plug-in fixing structure is provided on one side of the mica board body, and the conductive spring sheet is detachably connected to the nickel foil layer through the compression spring plug-in fixing structure.

5. The graphene mica heating plate with a novel electrode structure according to claim 1, characterized in that: The nickel foil layer is provided with a plurality of holes, and the side edges are serrated.

6. The graphene mica heating plate with a novel electrode structure according to claim 1, characterized in that: A mica paper layer is arranged between the nickel foil layer and the graphene carbon slurry film layer.

7. The graphene mica heating plate with a novel electrode structure according to claim 1, characterized in that: The thickness of the mica plate body is 1 mm, the thickness of the nickel foil layer is 0.03 mm, and the length is 10 mm.

8. The graphene mica heating plate with a novel electrode structure according to claim 1, characterized in that: The nickel foil layer is laminated on the mica board body through an adhesive layer.

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