An electromagnetic shielding composite material structure

Abstract

This utility model relates to the field of electromagnetic shielding materials technology, and provides an electromagnetic shielding composite material structure, including a first shielding layer and a protective structure. A second shielding layer is disposed on one side of the first shielding layer, and a protective structure is disposed inside both the first and second shielding layers. By providing the protective structure, when electromagnetic waves are incident on the electromagnetic shielding composite material, the first and second metal film layers effectively reflect most of the electromagnetic waves back to their original direction, thus preventing electromagnetic wave penetration. Furthermore, a heat insulation layer is provided to prevent heat transfer. This heat insulation layer is an electromagnetic shielding heat insulation material with functions such as heat insulation, waterproof sealing, and corrosion resistance, thereby protecting the internal structure or equipment of the composite material from the effects of high-temperature environments. Finally, a wear-resistant layer is made of transparent PET material, which has properties such as abrasion resistance and corrosion resistance.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic shielding materials technology, and in particular to an electromagnetic shielding composite material structure. Background Technology

[0002] Electromagnetic shielding materials are composite materials that shield electromagnetic waves. These materials can block or reduce the propagation of electromagnetic waves, thereby protecting equipment or the human body from electromagnetic interference. An electromagnetic shielding composite material structure is composed of multiple layers or multiple materials. The number of layers and the arrangement order of each material are determined according to actual needs, so as to configure electromagnetic shielding composite materials with corresponding shielding effects for electromagnetic radiation of different frequencies. To address this, patent CN205454370U discloses an electromagnetic shielding composite material. This electromagnetic shielding composite material has a layered structure, comprising: an amorphous or nanocrystalline substrate layer; one or more metal thin film layers, deposited on the surface of the amorphous or nanocrystalline substrate layer; and interlayers of the electromagnetic shielding composite material exhibiting alternating conductive and soft magnetic properties. The total thickness of the electromagnetic shielding composite material is 10-110 μm, and the thickness of the metal layers is 0.02-70 μm. The metal deposition layers are formed by one or more methods selected from electrodeposition, chemical deposition, or sputtering deposition. This novel electromagnetic shielding composite material can simultaneously mitigate the effects of both low-frequency and high-frequency electromagnetic waves, exhibiting excellent shielding performance against a wide range of electromagnetic waves. The electromagnetic shielding composite materials mentioned above are not conducive to isolating external heat during use. They are easily exposed to high external temperatures, which can affect their internal structure and thus impact their overall performance and stability. Utility Model Content

[0003] The purpose of this invention is to provide an electromagnetic shielding composite material structure to address the shortcomings of existing electromagnetic shielding composite material structures that lack a protective structure.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an electromagnetic shielding composite material structure, including a first shielding layer and a protective structure; A second shielding layer is provided on one side of the first shielding layer, and a protective structure is provided inside both the first shielding layer and the second shielding layer; The protective structure includes a first base layer, a first metal thin film layer, a metal mesh layer, a conductive fiber layer, a second metal thin film layer, a second base layer, a heat insulation layer, a wear-resistant layer, and a protective edge. The first base layer is disposed inside the first shielding layer and the second shielding layer. A first metal thin film layer is adhered to one side of the first base layer, a metal mesh layer is adhered to one side of the first metal thin film layer, a conductive fiber layer is adhered to one side of the metal mesh layer, a second metal thin film layer is adhered to one side of the conductive fiber layer, and a second base layer is adhered to one side of the second metal thin film layer. A heat insulation layer is adhered to one side of both the first shielding layer and the second shielding layer, and a wear-resistant layer is adhered to one side of the heat insulation layer. Protective edges are fixed to the outer sides of both the first shielding layer and the second shielding layer. A reinforcing structure is provided between the first shielding layer and the second shielding layer.

[0005] Preferably, the first base layer and the second base layer are symmetrically distributed inside the first shielding layer and the second shielding layer, respectively, and the first metal thin film layer and the second metal thin film layer are made of aluminum.

[0006] With the above structure, the first and second metal thin film layers have conductive properties during use. When electromagnetic waves are directed at the electromagnetic wave shielding composite material, most of the electromagnetic waves can be effectively reflected back to their original direction, thus preventing the electromagnetic waves from penetrating.

[0007] Preferably, the heat insulation layer is made of electromagnetic wave shielding heat insulation material, and the wear-resistant layer is made of transparent PET material.

[0008] With the above structure, the heat insulation layer is used to prevent heat transfer during use, and has functions such as heat insulation, waterproof sealing, and corrosion resistance. This protects the internal structure or equipment of the composite material from the effects of high-temperature environments. The wear-resistant layer has wear-resistant and scratch-resistant properties, which can resist external physical wear and thus extend the service life of the material.

[0009] Preferably, the reinforcing structure includes a first metal layer, a second metal layer, a limiting groove, a rubber column, a first reinforcing rib, and a second reinforcing rib. The first metal layer is adhered to one side of the first shielding layer, and the second metal layer is adhered to one side of the second shielding layer. A limiting groove is uniformly arranged on one side of the first metal layer and the second metal layer. A rubber column is arranged inside the limiting groove. The first reinforcing rib is fixed on both sides of the rubber column, and the second reinforcing rib is fixed on the other two sides of the rubber column.

[0010] Preferably, the first metal layer and the second metal layer are thin layers made of copper or aluminum metal material, and the limiting grooves are distributed at equal intervals on one side of the first metal layer and the second metal layer, respectively.

[0011] With the above structure, the first and second metal layers are thin layers made of copper or aluminum metal materials, which have good conductivity. Their main function is to shield electromagnetic interference and prevent external electromagnetic waves from interfering with the internal materials. At the same time, they can also ensure stable signal transmission by balancing the potential difference between the internal and external electric fields, thereby enhancing the shielding performance of the first and second shielding layers.

[0012] Preferably, the rubber column corresponds one-to-one with the limiting groove, the first reinforcing rib is symmetrically distributed on both sides of the rubber column, and the second reinforcing rib is symmetrically distributed on the other two sides of the rubber column.

[0013] With the above structure, the rubber columns, when in use, serve to reduce vibration, isolate vibration, and assist in electromagnetic shielding and wave absorption. This helps to reduce electromagnetic interference caused by vibration, improves the shielding effect, and further enhances the performance of the first and second shielding layers.

[0014] Preferably, the two ends of the first reinforcing rib are fixedly connected to one side of the rubber column, and the two ends of the second reinforcing rib are fixedly connected to the other side of the rubber column, wherein the rubber column, the first reinforcing rib, and the second reinforcing rib form a mesh distribution.

[0015] Through the above structure, the first and second reinforcing ribs can further enhance the overall structural strength and rigidity during use, thereby helping to improve the overall stability and durability of the material.

[0016] The electromagnetic shielding composite material structure provided by this utility model has the following advantages: By incorporating a protective structure, when electromagnetic waves strike the electromagnetic wave shielding composite material, the first and second metal film layers effectively reflect most of the electromagnetic waves back to their original direction, thus preventing their penetration. Additionally, a heat insulation layer is provided to prevent heat transfer. This heat insulation layer is an electromagnetic wave shielding heat insulation material with functions such as heat insulation, waterproof sealing, and corrosion resistance, thereby protecting the internal structure or equipment of the composite material from the effects of high-temperature environments. Finally, a wear-resistant layer is made of transparent PET material, which has properties such as abrasion resistance and corrosion resistance. By incorporating a reinforced structure, and by setting the first and second metal layers to be thin layers made of copper or aluminum metal, which have good conductivity, their main function is to shield electromagnetic interference and prevent external electromagnetic waves from interfering with the internal materials. At the same time, they can also ensure stable signal transmission by balancing the potential difference between the internal and external electric fields, thereby enhancing the shielding performance of the first and second shielding layers. In addition, the rubber pillars mainly play a role in shock absorption, vibration isolation, and auxiliary electromagnetic shielding and wave absorption, thereby helping to reduce electromagnetic wave interference caused by vibration and improving the shielding effect. This further enhances the performance of the first and second shielding layers. Furthermore, the first and second reinforcing ribs enhance the overall structural strength and rigidity, which helps to improve the overall stability and durability of the materials. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a frontal cross-sectional view of the present invention. Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 This is a front view cross-sectional structural diagram of the protective structure of this utility model; Figure 5 This is a top view cross-sectional diagram of the reinforcing structure of this utility model.

[0018] The reference numerals in the figure are as follows: 1. First shielding layer; 2. Second shielding layer; 3. Protective structure; 301. First base layer; 302. First metal film layer; 303. Metal mesh layer; 304. Conductive fiber layer; 305. Second metal film layer; 306. Second base layer; 307. Heat insulation layer; 308. Wear-resistant layer; 309. Edge protector; 4. Reinforcing structure; 401. First metal layer; 402. Second metal layer; 403. Limiting groove; 404. Rubber column; 405. First reinforcing rib; 406. Second reinforcing rib. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-5The present invention provides an electromagnetic shielding composite material structure, comprising a first shielding layer 1 and a protective structure 3.

[0021] Reference Figure 1 , Figure 2 and Figure 4 As shown, a second shielding layer 2 is disposed on one side of the first shielding layer 1. Both the first shielding layer 1 and the second shielding layer 2 have a protective structure 3 inside. The protective structure 3 includes a first base layer 301, a first metal thin film layer 302, a metal mesh layer 303, a conductive fiber layer 304, a second metal thin film layer 305, a second base layer 306, a heat insulation layer 307, a wear-resistant layer 308, and a protective edge 309. The first base layer 301 is disposed inside the first shielding layer 1 and the second shielding layer 2. A first metal thin film layer 302 is adhered to one side of the first base layer 301, a metal mesh layer 303 is adhered to one side of the first metal thin film layer 302, and conductive fibers are adhered to one side of the metal mesh layer 303. Layer 304, a second metal film layer 305 is adhered to one side of the conductive fiber layer 304, a second base layer 306 is adhered to one side of the second metal film layer 305, a heat insulation layer 307 is adhered to one side of both the first shielding layer 1 and the second shielding layer 2, a wear-resistant layer 308 is adhered to one side of the heat insulation layer 307, a protective edge 309 is fixed to the outer side of both the first shielding layer 1 and the second shielding layer 2, the first base layer 301 and the second base layer 306 are symmetrically distributed inside the first shielding layer 1 and the second shielding layer 2, the first metal film layer 302 and the second metal film layer 305 are made of aluminum, the heat insulation layer 307 is made of electromagnetic wave shielding and heat insulation material, and the wear-resistant layer 308 is made of transparent PET material.

[0022] By adhering a first metal thin film layer 302 and a second metal thin film layer 305 to one side of the metal mesh layer 303 and the conductive fiber layer 304, respectively, the first metal thin film layer 302 and the second metal thin film layer 305, due to their conductive properties, effectively reflect most of the electromagnetic waves back to their original direction when electromagnetic waves are incident on the electromagnetic wave shielding composite material. This reflects the electromagnetic waves and prevents their penetration. Furthermore, a heat insulation layer 307 is provided to prevent heat transfer. The heat insulation layer 307 is an electromagnetic wave shielding heat insulation material with functions such as heat insulation, waterproof sealing, and corrosion resistance, thereby protecting the internal structure or equipment of the composite material from the effects of high-temperature environments. The wear-resistant layer 308, made of transparent PET material, has properties such as abrasion resistance and corrosion resistance. Firstly, it gives the surface of the composite material wear-resistant and scratch-resistant properties, resisting external physical wear and extending the material's service life. Secondly, the wear-resistant layer also has properties of pollution resistance and corrosion resistance, resisting chemical erosion and maintaining the integrity of the material. In addition, the wear-resistant layer may also have a positive impact on the electromagnetic shielding effect. By optimizing the surface structure of the material, it can reduce the reflection and scattering of electromagnetic waves on the material surface and improve the shielding effectiveness.

[0023] Reference Figure 2 , Figure 3 and Figure 5 As shown, a reinforcing structure 4 is provided between the first shielding layer 1 and the second shielding layer 2. The reinforcing structure 4 includes a first metal layer 401, a second metal layer 402, a limiting groove 403, a rubber pillar 404, a first reinforcing rib 405, and a second reinforcing rib 406. The first metal layer 401 is adhered to one side of the first shielding layer 1, and the second metal layer 402 is adhered to one side of the second shielding layer 2. The limiting groove 403 is evenly provided on one side of the first metal layer 401 and the second metal layer 402. A rubber pillar 404 is provided inside the limiting groove 403. The first reinforcing rib 405 is fixed on both sides of the rubber pillar 404, and the second reinforcing rib 406 is fixed on the other two sides of the rubber pillar 404. The first metal layer 401 and the second metal layer 402 are thin layers made of copper or aluminum metal. The limiting grooves 403 are equally spaced on one side of the first metal layer 401 and the second metal layer 402. The rubber pillars 404 correspond one-to-one with the limiting grooves 403. The first reinforcing ribs 405 are symmetrically distributed on both sides of the rubber pillars 404. The second reinforcing ribs 406 are symmetrically distributed on the other two sides of the rubber pillars 404. The two ends of the first reinforcing ribs 405 are fixedly connected to one side of the rubber pillars 404, and the two ends of the second reinforcing ribs 406 are fixedly connected to the other side of the rubber pillars 404. The rubber pillars 404, the first reinforcing ribs 405 and the second reinforcing ribs 406 form a mesh distribution.

[0024] By setting the first metal layer 401 and the second metal layer 402 to be thin layers made of copper or aluminum, they have good conductivity and their main function is to shield electromagnetic interference and prevent external electromagnetic waves from interfering with the internal materials. At the same time, they can also ensure stable signal transmission by balancing the potential difference between the internal and external electric fields, thereby strengthening the shielding performance of the first shielding layer 1 and the second shielding layer 2. In addition, by setting the rubber pillars 404, they mainly play the role of shock absorption, vibration isolation, and auxiliary electromagnetic shielding and wave absorption, thereby helping to reduce electromagnetic wave interference caused by vibration and improving the shielding effect. This further enhances the performance of the first shielding layer 1 and the second shielding layer 2. Furthermore, by setting the first reinforcing ribs 405 and the second reinforcing ribs 406, the overall structural strength and rigidity can be enhanced, which helps to improve the overall stability and durability of the materials.

[0025] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An electromagnetic shielding composite material structure, comprising a first shielding layer (1) and a protective structure (3); Its features are: A second shielding layer (2) is provided on one side of the first shielding layer (1), and a protective structure (3) is provided inside both the first shielding layer (1) and the second shielding layer (2). The protective structure (3) includes a first base layer (301), a first metal thin film layer (302), a metal mesh layer (303), a conductive fiber layer (304), a second metal thin film layer (305), a second base layer (306), a heat insulation layer (307), a wear-resistant layer (308), and a protective edge (309). The first base layer (301) is disposed inside the first shielding layer (1) and the second shielding layer (2). The first metal thin film layer (302) is adhered to one side of the first base layer (301), and the first metal thin film layer (302) is adhered to one side of the first metal thin film layer (302). A metal mesh layer (303) is attached to one side of the metal mesh layer (303), a conductive fiber layer (304) is attached to one side of the conductive fiber layer (304), a second metal thin film layer (305) is attached to one side of the second metal thin film layer (305), a second base layer (306) is attached to one side of the second metal thin film layer (305), a heat insulation layer (307) is attached to one side of the first shielding layer (1) and the second shielding layer (2), a wear-resistant layer (308) is attached to one side of the heat insulation layer (307), and a protective edge (309) is fixed to the outside of the first shielding layer (1) and the second shielding layer (2). A reinforcing structure (4) is provided between the first shielding layer (1) and the second shielding layer (2).

2. The electromagnetic shielding composite structure of claim 1, wherein: The first base layer (301) and the second base layer (306) are symmetrically distributed inside the first shielding layer (1) and the second shielding layer (2), respectively. The first metal thin film layer (302) and the second metal thin film layer (305) are made of aluminum.

3. The electromagnetic shielding composite structure of claim 1, wherein: The heat insulation layer (307) is made of electromagnetic wave shielding heat insulation material, and the wear-resistant layer (308) is made of transparent PET material.

4. The electromagnetic shielding composite structure of claim 1, wherein: The reinforcing structure (4) includes a first metal layer (401), a second metal layer (402), a limiting groove (403), a rubber column (404), a first reinforcing rib (405), and a second reinforcing rib (406). The first metal layer (401) is adhered to one side of the first shielding layer (1), and the second metal layer (402) is adhered to one side of the second shielding layer (2). A limiting groove (403) is uniformly arranged on one side of the first metal layer (401) and the second metal layer (402). A rubber column (404) is arranged inside the limiting groove (403). The first reinforcing rib (405) is fixed on both sides of the rubber column (404), and the second reinforcing rib (406) is fixed on the other two sides of the rubber column (404).

5. The electromagnetic shielding composite structure of claim 4, wherein: The first metal layer (401) and the second metal layer (402) are thin layers made of copper or aluminum metal materials, and the limiting grooves (403) are distributed at equal intervals on one side of the first metal layer (401) and the second metal layer (402).

6. The electromagnetic shielding composite structure of claim 4, wherein: The rubber column (404) corresponds to the limiting groove (403) one by one, the first reinforcing rib (405) is symmetrically distributed on both sides of the rubber column (404), and the second reinforcing rib (406) is symmetrically distributed on the other two sides of the rubber column (404).

7. The electromagnetic shielding composite structure of claim 4, wherein: The two ends of the first reinforcing rib (405) are fixedly connected with one side of the rubber column (404) respectively, the two ends of the second reinforcing rib (406) are fixedly connected with the other side of the rubber column (404) respectively, and the rubber column (404), the first reinforcing rib (405) and the second reinforcing rib (406) constitute a mesh distribution.

Images