A high-density woven structure of an interference shielding layer

Abstract

The utility model discloses a high density braided structure of anti -interference shielding layer belongs to the technical field of shielded cable, this high density braided structure of anti -interference shielding layer, including aluminium foil shield, aluminium foil shield can reduce the cross interference of cable internal signal, aluminium foil shield's outside is equipped with the first shielding net, the outside of first shielding net is equipped with second shielding net The outside of second shielding net is equipped with third shielding net, the outside of third shielding net is equipped with fourth shielding net, first shielding net and fourth shielding net staggered arrangement, second shielding net and third shielding net staggered arrangement. The utility model discloses through being equipped with first shielding net and fourth shielding net, make first shielding net and fourth shielding net mutual to each other's gap carry out sheltering shield, prevent these crevices from becoming electromagnetic leakage passage, reduce the electromagnetic leakage path of shielding layer to the improvement to wideband electromagnetic wave's blocking capacity, satisfy the anti -interference demand of high accuracy electronic equipment.

Description

Technical Field

[0001] This utility model relates to the field of shielded cable technology, and in particular to a high-density braided structure for an anti-interference shielding layer. Background Technology

[0002] Electromagnetic interference is a common problem in modern electronic devices and communication systems. In order to reduce or eliminate the impact of this interference on the performance of the equipment, various shielding materials are usually used to build a protective barrier. The shielding material for cables is generally conductive cloth wrapped around the outside of the signal line or the entire cable bundle that needs to be shielded to achieve the shielding effect, or metal braided mesh is used for covering.

[0003] According to the shielding structure and cable assembly proposed in announcement number CN222380331U, a circumferentially seamless structure is formed by combining a conductive structure with an elastic braided structure, thereby creating a continuous conductive path and achieving electromagnetic shielding. This not only strengthens the protection against external electromagnetic interference, but also provides excellent sealing through the seamless design, further enhancing the shielding effectiveness.

[0004] Existing shielding layer braided structures use metal wires to form shielding layers to block external electromagnetic waves. However, traditional shielding layers mostly use a warp and weft interlacing weaving method. Due to the periodic arrangement of warp and weft threads, this conventional weaving structure inevitably forms triangular or rhomboid gaps between adjacent warp and weft threads. These gaps become the main channels for electromagnetic leakage. The penetration effect is even more significant when the incident wave frequency is close to the resonant frequency corresponding to the gap size.

[0005] Therefore, there is an urgent need to provide a high-density braided structure for the anti-interference shielding layer to solve the above problems. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a high-density woven structure for an anti-interference shielding layer.

[0007] To solve the above-mentioned technical problems, one technical solution adopted by this utility model is: to provide a high-density braided structure for an anti-interference shielding layer, including aluminum foil shielding, wherein the aluminum foil shielding can reduce cross-interference of signals within the cable; The aluminum foil shield is provided with a first shielding mesh outside, a second shielding mesh outside the first shielding mesh outside the second shielding mesh outside the second shielding mesh outside the third shielding mesh outside the fourth shielding mesh. The first and fourth shielding meshes are arranged alternately, so that the gaps between them can block and shield each other. The second and third shielding meshes are arranged alternately, which reduces the electromagnetic leakage paths between the shielding layers.

[0008] Through the above technical solution, the first and fourth shielding meshes are arranged in an alternating manner, and the second and third shielding meshes are also arranged in an alternating manner, so that the gaps between them can block and shield each other, which helps to reduce the electromagnetic leakage path between shielding layers and further enhances the anti-interference ability of the entire shielding structure.

[0009] The present invention is further configured such that: the first shielding mesh includes a first plain weave warp and a first plain weave weft, and the first plain weave warp and the first plain weave weft are plainly woven.

[0010] Through the above technical solution, the first shielding mesh selects copper-plated tin wire of appropriate specifications as the first plain weave warp and the first plain weave weft, and weaves it according to the plain weave weaving process to ensure that the warp and weft threads are tightly interwoven and evenly distributed.

[0011] The present invention is further configured such that: the second shielding mesh includes a first twill warp and a first twill weft, wherein the first twill warp and the first twill weft are twill-woven.

[0012] Through the above technical solution, the second shielding mesh uses nickel-zinc plated wire as the first twill warp and the first twill weft, and adopts a twill weaving method to make the warp and weft intersect at a certain angle to form a grid structure.

[0013] The present invention is further configured such that: the third shielding mesh includes a second twill warp and a second twill weft, and the second twill warp and the second twill weft are twill woven together.

[0014] Using the above technical solution, nickel-plated zinc wire is similarly woven into a third shielding mesh, that is, the second twill warp and the second twill weft are also woven in a twill pattern.

[0015] The present invention is further configured such that: the fourth shielding mesh includes a second plain weave warp and a second plain weave weft, and the second plain weave warp and the second plain weave weft are plainly woven.

[0016] Using the above technical solution, the fourth shielding mesh is woven with copper-plated tin wire, which is the second plain weave warp and the second plain weave weft.

[0017] The present invention is further configured such that the first plain warp, the first plain weft, the second plain warp, and the second plain weft are copper-plated tin shielding mesh.

[0018] By using the above technical solutions, changing the material thickness or the diameter ratio of the warp and weft threads of the copper-plated tin shielding mesh can alter the anti-interference performance of the shielding layer.

[0019] The present invention is further configured such that the first twill warp, the first twill weft, the second twill warp, and the second twill weft are nickel-plated zinc shielding mesh.

[0020] By using the above technical solutions, changing the material thickness or the diameter ratio of the warp and weft threads of the nickel-zinc coated shielding mesh can alter the anti-interference performance of the shielding layer.

[0021] The beneficial effects of this utility model are as follows: 1. This utility model provides a first shielding mesh and a fourth shielding mesh, which mutually shield each other's gaps, preventing these gaps from becoming channels for electromagnetic leakage, reducing the electromagnetic leakage path of the shielding layer, thereby improving the blocking capability of broadband electromagnetic waves and meeting the anti-interference requirements of high-precision electronic equipment. 2. This utility model, by providing a second shielding mesh and a third shielding mesh, allows the second and third shielding meshes to block and shield each other's gaps, causing electromagnetic waves to be reflected and attenuated multiple times between the multiple layers. This multi-layered, staggered arrangement effectively reduces the electromagnetic leakage paths between the shielding layers, forming a tight composite shielding system, thereby achieving the purpose of high-efficiency shielding. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a diagram of the aluminum foil shielding structure of this utility model; Figure 3 This is a structural diagram of the first and fourth shielding meshes of this utility model; Figure 4 This is a structural diagram of the second and third shielding meshes of this utility model.

[0023] In the diagram: 1. Aluminum foil shielding; 2. First shielding mesh; 201. First plain weave warp; 202. First plain weave weft; 3. Second shielding mesh; 301. First twill weave warp; 302. First twill weft; 4. Third shielding mesh; 401. Second twill weave warp; 402. Second twill weft; 5. Fourth shielding mesh; 501. Second plain weave warp; 502. Second plain weft. Detailed Implementation

[0024] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0025] Please see Figures 1-4A high-density braided structure for an anti-interference shielding layer includes an aluminum foil shield 1, which reduces cross-interference of signals within the cable. A first shielding mesh 2 is provided outside the aluminum foil shield 1. The first shielding mesh 2 includes a first plain weave warp 201 and a first plain weave weft 202, which are plainly woven. A fourth shielding mesh 5 is provided outside a third shielding mesh 4. The fourth shielding mesh 5 includes a second plain weave warp 501 and a second plain weave weft 502, which are plainly woven. The first shielding mesh 2 and the fourth shielding mesh 5 are arranged alternately, allowing their gaps to mutually shield each other. The first plain weave warp 201, the first plain weave weft 202, the second plain weave warp 501, and the second plain weave weft weft 502 are arranged in a plain weave. Line 502 is a copper-plated tin shielding mesh. The first shielding mesh 2 and the fourth shielding mesh 5 are arranged alternately, and the second shielding mesh 3 and the third shielding mesh 4 are also arranged alternately, so that the gaps between them can block each other, which helps to reduce the electromagnetic leakage path between shielding layers and further enhances the anti-interference ability of the entire shielding structure. The first shielding mesh 2 uses copper-plated tin wire of appropriate specifications as the first plain weave warp 201 and the first plain weave weft 202, and is woven according to the plain weave process to ensure that the warp and weft threads are tightly interwoven and evenly distributed. The fourth shielding mesh 5 is woven with copper-plated tin wire, that is, the second plain weave warp 501 and the second plain weave weft 502 are completed with plain weave. Changing the material thickness of the copper-plated tin shielding mesh or the diameter ratio of the warp and weft threads can change the anti-interference effectiveness of the shielding layer.

[0026] like Figure 1 and Figure 4 As shown, a second shielding mesh 3 is provided outside the first shielding mesh 2. The second shielding mesh 3 includes a first twill warp 301 and a first twill weft 302, which are twill-woven. A third shielding mesh 4 is provided outside the second shielding mesh 3. The third shielding mesh 4 includes a second twill warp 401 and a second twill weft 402, which are twill-woven. The second shielding mesh 3 and the third shielding mesh 4 are arranged alternately to reduce electromagnetic leakage paths between shielding layers. The first twill warp 301, the first twill weft 302, the first twill warp 301, the first twill weft 302... The first twill weft 302, the second twill warp 401, and the second twill weft 402 are nickel-zinc plated shielding meshes. The second shielding mesh 3 uses nickel-zinc plated wire as the first twill warp 301 and the first twill weft 302, and adopts a twill weaving method so that the warp and weft cross at a certain angle to form a grid structure. Similarly, the nickel-zinc plated wire is woven into the third shielding mesh 4, that is, the second twill warp 401 and the second twill weft 402 are also operated in a twill weaving method. By changing the material thickness of the nickel-zinc plated shielding mesh or the diameter ratio of the warp and weft, the anti-interference effectiveness of the shielding layer can be changed.

[0027] In use, the first shielding mesh 2 and the fourth shielding mesh 5 are arranged alternately, as are the second shielding mesh 3 and the third shielding mesh 4. This allows the gaps between them to mutually shield each other, helping to reduce electromagnetic leakage paths between shielding layers and further enhancing the anti-interference capability of the entire shielding structure. The first shielding mesh 2 uses copper-plated tin wire of appropriate specifications as the first plain weave warp 201 and the first plain weave weft 202, and is woven according to the plain weave process to ensure that the warp and weft threads are tightly interwoven and evenly distributed. The fourth shielding mesh 5 is woven with copper-plated tin wire, which is the second plain weave warp 501 and the second plain weave weft 502. 02 is completed with plain weave. Changing the material thickness or the diameter ratio of the warp and weft threads of the copper-plated tin shielding mesh can change the anti-interference effectiveness of the shielding layer. The second shielding mesh 3 uses nickel-plated zinc wire as the first twill warp 301 and the first twill weft 302. The twill weave method is adopted so that the warp and weft threads cross at a certain angle to form a grid structure. Similarly, the nickel-plated zinc wire is woven into the third shielding mesh 4, that is, the second twill warp 401 and the second twill weft 402 are also operated in the twill weave method. Changing the material thickness or the diameter ratio of the warp and weft threads of the nickel-plated zinc shielding mesh can change the anti-interference effectiveness of the shielding layer.

[0028] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A high-density woven structure for an anti-interference shielding layer, comprising aluminum foil shielding (1), characterized in that: The aluminum foil shield (1) can reduce cross-interference of signals within the cable; The aluminum foil shield (1) is provided with a first shielding mesh (2) on the outside, a second shielding mesh (3) is provided on the outside of the first shielding mesh (2), a third shielding mesh (4) is provided on the outside of the second shielding mesh (3), and a fourth shielding mesh (5) is provided on the outside of the third shielding mesh (4). The first shielding mesh (2) and the fourth shielding mesh (5) are arranged in an alternating manner so that the gaps between them can block each other. The second shielding mesh (3) and the third shielding mesh (4) are arranged in an alternating manner to reduce the electromagnetic leakage path between the shielding layers.

2. The high-density braided structure of the anti-interference shielding layer according to claim 1, characterized in that: The first shielding mesh (2) includes a first plain weave warp (201) and a first plain weave weft (202), which are plain woven together.

3. The high-density braided structure of the anti-interference shielding layer according to claim 1, characterized in that: The second shielding mesh (3) includes a first twill warp (301) and a first twill weft (302), which are twill-woven.

4. The high-density braided structure of the anti-interference shielding layer according to claim 3, characterized in that: The third shielding mesh (4) includes a second twill warp (401) and a second twill weft (402), which are twill-woven.

5. The high-density braided structure of the anti-interference shielding layer according to claim 2, characterized in that: The fourth shielding mesh (5) includes a second plain weave warp (501) and a second plain weave weft (502), which are plain woven together.

6. The high-density braided structure of the anti-interference shielding layer according to claim 5, characterized in that: The first plain warp (201), the first plain weft (202), the second plain warp (501), and the second plain weft (502) are copper-plated tin shielding mesh.

7. The high-density braided structure of the anti-interference shielding layer according to claim 4, characterized in that: The first twill warp (301), the first twill weft (302), the second twill warp (401), and the second twill weft (402) are nickel-plated zinc shielding mesh.

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