High-performance flexible wave absorbing plate
By introducing a combined structure of graphene sheets, graphene tubes, adhesive surface layers and backing paper into the flexible absorber, the problem of performance degradation caused by heating of the absorber is solved, and better heat dissipation effect and performance are achieved.
Patent Information
- Application Number
- CN202422786576.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-15
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-11-15
AI Technical Summary
Existing flexible absorbers tend to heat up after absorbing electromagnetic radiation, which reduces their absorption performance and affects their performance.
A combined structure of graphene sheets, graphene tubes, adhesive surface layer and base paper is adopted to enhance the heat dissipation effect, including setting graphene tubes and through holes on the graphene sheets, setting indentations and convex strips on the base surface layer, and opening reserved openings on the base paper to enhance stability and heat dissipation performance.
The heat dissipation effect of the flexible absorbing sheet is improved, its performance is enhanced, and the performance degradation caused by temperature rise is avoided.
Smart Images
Figure CN223415176U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of flexible wave-absorbing sheets, in particular to a high-performance flexible wave-absorbing sheet. Background Art
[0002] Flexible absorbers are functional materials used to absorb and suppress electromagnetic waves. They are usually composed of an electromagnetic wave absorbing layer, a supporting substrate, and a liquid metal permeation layer. This structural design can give the absorbers high flexibility and fatigue resistance while maintaining good absorbing performance, making them suitable for electromagnetic shielding scenarios that require bending and deformation.
[0003] Existing related technologies often have the following defects: during the actual use of flexible absorbing sheets, the flexible absorbing sheets tend to heat up after absorbing electromagnetic radiation. The performance of the flexible absorbing sheets in absorbing electromagnetic radiation after heating up is often easily reduced, thereby reducing the subsequent performance of the flexible absorbing sheets.
[0004] Therefore, the utility model provides a high-performance flexible absorbing sheet. Utility Model Content
[0005] The purpose of the utility model is to solve the shortcoming of poor heat dissipation effect of flexible absorbing sheets in the prior art, and to propose a high-performance flexible absorbing sheet.
[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a high-performance flexible absorbing sheet, comprising a base surface layer, a graphene sheet layer is provided on the upper surface of the base surface layer, a second adhesive surface layer is provided on the lower surface of the graphene sheet layer, the graphene sheet layer is bonded to the base surface layer by means of the second adhesive surface layer, a first adhesive surface layer is provided on the lower surface of the base surface layer, and a backing paper is bonded to the lower surface of the first adhesive surface layer.
[0007] The effect achieved by the above components is that: by providing the above structure, the heat dissipation effect of the flexible absorbing sheet during use is improved, thereby improving the performance of the flexible absorbing sheet.
[0008] Preferably, a plurality of graphene tubes are evenly and fixedly connected to the upper surface of the graphene sheet, and the cross section of the graphene tubes is diamond-shaped.
[0009] The effects achieved by the above components are: the provision of the graphene tube further increases the heat dissipation area of the graphene sheet during use, thereby improving the heat conduction and heat dissipation effect of the graphene sheet.
[0010] Preferably, a plurality of through holes are evenly formed on the side wall of the graphene tube.
[0011] The effect achieved by the above components is that the through holes are provided to increase the ventilation and heat dissipation effect of the graphene tube during use.
[0012] Preferably, the upper surface of the base layer is evenly provided with a plurality of indentations, and the lower surface of the graphene sheet layer is evenly provided with a plurality of convex strips.
[0013] The effect achieved by the above components is: by setting the indentations and the convex strips, not only the contact surface between the base layer and the graphene sheet is increased, the contact heat dissipation effect of the base layer is improved, but also the stability of the base layer and the graphene sheet after bonding using the second adhesive layer is increased.
[0014] Preferably, an anti-tear layer is embedded in the base surface layer, and the anti-tear layer is a nylon braided layer.
[0015] The effect achieved by the above components is: by providing the tear-resistant layer made of the nylon braided layer, the strength of the base layer when it is pulled by external force is improved.
[0016] Preferably, a plurality of reserved openings are evenly formed on the side wall of the bottom paper.
[0017] The effects achieved by the above components are: by providing the reserved opening on the bottom paper, the quick removal of the bottom paper is facilitated, and the efficiency of taking out the flexible absorbing sheet is further improved.
[0018] In summary:
[0019] In the utility model, by providing a graphene sheet glued to the upper surface of the base surface layer, the heat dissipation performance of the base surface layer during use is improved, and by providing the graphene tube, the heat dissipation area of the graphene sheet during use is further increased, and the heat conduction and heat dissipation effect of the graphene sheet is improved, thereby improving the heat dissipation effect of the base surface layer and the performance of the base surface layer. By providing the above structure, the heat dissipation effect of the flexible absorbing sheet during use is improved, thereby improving the performance of the flexible absorbing sheet. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0021] Figure 2 This is a schematic diagram of the disassembled structure of the utility model;
[0022] Figure 3 For this utility model Figure 2 A magnified view of point A;
[0023] Figure 4 For this utility model Figure 2 Enlarged view of point B.
[0024] Legend: 1. Base layer; 2. Graphene sheet; 3. Graphene tube; 4. Through hole; 5. Bottom paper; 6. First adhesive layer; 7. Second adhesive layer; 8. Reserved opening; 9. Tear-resistant layer; 10. Indentation; 11. Raised strip. DETAILED DESCRIPTION
[0025] Reference Figure 1-4 As shown, the utility model provides a technical solution: a high-performance flexible absorbing sheet, including a base surface layer 1.
[0026] The following is a detailed description of its overall specific settings and functions.
[0027] In this embodiment, a graphene sheet 2 is provided on the upper surface of the base surface layer 1, and a second adhesive layer 7 is provided on the lower surface of the graphene sheet 2. The graphene sheet 2 is bonded to the base surface layer 1 via the second adhesive layer 7. A first adhesive layer 6 is provided on the lower surface of the base surface layer 1, and a backing paper 5 is bonded to the lower surface of the first adhesive layer 6. This structure improves the heat dissipation effect of the flexible absorber during use, thereby enhancing the performance of the flexible absorber. Several graphene tubes 3 are evenly and fixedly connected to the upper surface of the graphene sheet 2, each having a diamond-shaped cross-section. The provision of the graphene tubes 3 further increases the heat dissipation area of the graphene sheet 2 during use, improving the thermal conductivity and heat dissipation effect of the graphene sheet 2. Several through-holes 4 are evenly distributed on the sidewalls of the graphene tubes 3. The provision of the through-holes 4 enhances the ventilation and heat dissipation effect of the graphene tubes 3 during use. The upper surface of the base layer 1 is uniformly provided with a number of indentations 10, and the lower surface of the graphene sheet 2 is uniformly provided with a number of ridges 11. The matching arrangement of the indentations 10 and ridges 11 not only increases the contact surface between the base layer 1 and the graphene sheet 2, improving the contact heat dissipation effect of the base layer 1, but also increases the stability of the base layer 1 and the graphene sheet 2 after being bonded using the second adhesive layer 7.
[0028] Specifically, the base layer 1 is embedded with a tear-resistant layer 9, which is a nylon braid. This nylon braid enhances the strength of the base layer 1 when subjected to external forces. Several pre-cut openings 8 are evenly spaced along the sidewalls of the backing paper 5. These openings facilitate quick removal of the backing paper 5, further improving access to the flexible absorber.
[0029] Working principle: by setting a graphene sheet 2 glued to the upper surface of the base layer 1, the heat dissipation performance of the base layer 1 during use is improved, and by setting the graphene tube 3, the heat dissipation area of the graphene sheet 2 during use is further increased, and the heat conduction and heat dissipation effect of the graphene sheet 2 is improved, thereby improving the heat dissipation effect of the base layer 1 and the performance of the base layer 1. By setting the through hole 4, the ventilation and heat dissipation effect of the graphene tube 3 during use is increased, thereby improving the heat dissipation performance of the position of the graphene tube 3. The graphene tube 3 with a diamond structure in cross section is set, which not only increases the heat dissipation area of the graphene structure during use, but also the graphene tube 3 with a diamond structure has a good compression rebound effect, which improves the flexibility of the heat dissipation structure. Active, by arranging the indentation 10 and the ridge 11 to match, not only the contact surface between the base surface layer 1 and the graphene sheet 2 is increased, the contact heat dissipation effect of the base surface layer 1 is improved, but also the stability of the base surface layer 1 and the graphene sheet 2 after bonding using the second adhesive layer 7 is increased. By arranging the tear-resistant layer 9 made of nylon braided layer, the strength of the base surface layer 1 when pulled by external force is improved, thereby avoiding the base surface layer 1 from being easily torn. By arranging the reserved opening 8 on the bottom paper 5, the rapid removal of the bottom paper 5 is facilitated, and the efficiency of taking the flexible absorbing sheet is further improved. By arranging the above structure, the heat dissipation effect of the flexible absorbing sheet during use is improved, thereby improving the performance of the flexible absorbing sheet.
[0030] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.
Claims
1. A high-performance flexible absorbing sheet, comprising a base surface layer (1), characterized in that: The upper surface of the base surface layer (1) is provided with a graphene sheet (2) layer, the lower surface of the graphene sheet (2) layer is provided with a second adhesive surface layer (7), the graphene sheet (2) layer is bonded to the base surface layer (1) by means of the second adhesive surface layer (7), the lower surface of the base surface layer (1) is provided with a first adhesive surface layer (6), and the lower surface of the first adhesive surface layer (6) is bonded to a base paper (5).
2. The high-performance flexible absorbing sheet according to claim 1, characterized in that: A plurality of graphene tubes (3) are evenly and fixedly connected to the upper surface of the graphene sheet (2) layer, and the cross section of the graphene tubes (3) is rhombus-shaped.
3. The high-performance flexible absorbing sheet according to claim 2, characterized in that: A plurality of through holes (4) are evenly provided on the side wall of the graphene tube (3).
4. The high-performance flexible absorbing sheet according to claim 1, characterized in that: The upper surface of the base surface layer (1) is evenly provided with a plurality of indentations (10), and the lower surface of the graphene sheet (2) layer is evenly provided with a plurality of convex strips (11).
5. The high-performance flexible absorbing sheet according to claim 1, characterized in that: An anti-tear layer (9) is embedded in the interior of the base surface layer (1), and the anti-tear layer (9) is a nylon braided layer.
6. The high-performance flexible absorbing sheet according to claim 5, characterized in that: The side wall of the bottom paper (5) is evenly provided with a plurality of reserved openings (8).