Composite self-wrap shielding tube

Abstract

The composite self-wrapped shielding tube includes a plurality of carbon fiber bundles arranged to extend in the length direction, a plurality of wire bundles arranged alternately with the carbon fiber bundles and made of metal wires, and a plurality of weft threads arranged to extend in a direction perpendicular to the carbon fiber bundles and the wire bundles, and is formed by winding a braided member formed by braiding the carbon fiber bundles, the wire bundles, and the weft threads into a cylindrical shape.

Description

Technical Field

[0001] The present invention relates to a composite material self-flap shielding tube, and more particularly, to a composite material self-flap shielding tube that can improve the workability of cable connection or cable shielding work, ensure good electromagnetic wave shielding performance, and minimize weight and cost.

Background Art

[0002] In the case of conventional tube-shaped shielding fabrics, they were made of only one of two types: conductive fibers or conductive metal materials. In the case of tube-shaped shielding fabrics using conductive fibers, the shielding characteristics were insufficient. To make up for this, a metal foil with a non-single-layer structure was further overlaid, or in order to complement this, the conductivity of the fibers themselves was enhanced by plating or other surface treatment methods, or a tube-shaped shielding fabric was made only of a conductive metal material.

[0003] As described above, in the case of conductive fibers, the conductivity of the fibers that affects the shielding characteristics is relatively insufficient compared to metal materials. To make up for the insufficient shielding performance, additional measures are taken for the fibers. In this case, however, the flame retardancy of the entire tube may be reduced by such measures, or separation, peeling of the plating and coating substances, and uneven shielding characteristics by section may occur during the manufacturing process of the tube or during handling after manufacturing.

[0004] To make up for this, when applying a multi-layer structure, since the characteristics of the metal foil layer are stronger than those of the tube, there is a problem that the inconvenience increases in handling this part as a tube.

[0005] Conversely, in the case of tube-shaped products made only of metal materials, since the base material for processing into a non-woven tube form is a wire-shaped metal alloy, similar to a multi-layer structure tube containing a metal foil, the fabric made of fibers is rough, and there is inconvenience in handling it in a tube form.

[0006] In addition, since the weight relatively increases compared to a tube made of a fiber material, there is a problem that it is difficult to apply to various fields that require lightweight products.

SUMMARY OF THE INVENTION

PROBLEMS TO BE SOLVED BY THE INVENTION

[0007] Thus, the technical problem of the present invention has been focused on from such points, and the object of the present invention is to provide a composite material self-flap shielding tube that can improve the workability of cable connection or cable shielding work, ensure good electromagnetic wave shielding performance, and minimize weight and cost.

MEANS FOR SOLVING THE PROBLEM

[0008] A composite material self-flap shielding tube according to an embodiment for realizing the above object of the present invention includes a plurality of carbon fiber bundles arranged to extend in a first direction, a plurality of wire bundles arranged to extend in the first direction parallel to the carbon fiber bundles and alternately arranged, and composed of metal wires, and a plurality of weft yarns arranged to extend in a second direction perpendicular to the first direction. The members composed of the carbon fiber bundles, the wire bundles, and the weft yarns are wound into a cylindrical shape. Weave configured Fabric are formed by winding into a cylindrical shape.

[0009] In one embodiment of the present invention, the ratio of the number of the carbon fiber bundles to the number of the wire bundles arranged can be 1:n (where n is a natural number of 8 or less). Alternatively, the total area of the wire bundles can be 1 to 8 times the total area of the carbon fiber bundles.

[0010] In one embodiment of the present invention, the carbon fiber bundles can be composed of 3k, 6k, or 12k carbon fiber yarns.

[0011] In one embodiment of the present invention, the carbon fiber yarns constituting the carbon fiber bundles can be coated with polyamide.

[0012] In one embodiment of the present invention, the metal wire constituting the wire bundle can be made of CCA (Copper Clad Aluminum) material.

[0013] In one embodiment of the present invention, the metal wire constituting the wire bundle can be formed of a material in which silicon (Si), iron (Fe), copper (Cu), manganese (Mn), magnesium (Mg), chromium (Cr), and zinc (Zn) are mixed with aluminum (Al).

[0014] In one embodiment of the present invention, the composite material self-flap shielding tube can have a shielding rate (dB) of 40 dB or more under a signal condition of 100 MHz.

[0015] In one embodiment of the present invention, the ratio of the number of the carbon fiber bundle and the wire bundle arranged is 1:n (where n is a natural number of 32 or less), and the carbon fiber bundle can be composed of 3k carbon fiber filaments. Alternatively, the total area of the wire bundle can be 1 to 32 times the total area of the carbon fiber bundle.

[0016] In one embodiment of the present invention, the ratio of the number of the carbon fiber bundle and the wire bundle arranged is 1:n (where n is a natural number of 16 or less), and the carbon fiber bundle can be composed of 6k carbon fiber filaments. Alternatively, the total area of the wire bundle can be 1 to 16 times the total area of the carbon fiber bundle.

[0017] In one embodiment of the present invention, the ratio of the number of the carbon fiber bundle and the wire bundle arranged is 1:n (where n is a natural number of 8 or less), and the carbon fiber bundle can be composed of 12k carbon fiber filaments. Alternatively, the total area of the wire bundle can be 1 to 8 times the total area of the carbon fiber bundle.

[0018] In one embodiment of the present invention, when the Fabric member is wound in a cylindrical shape, an overlapping portion where the ends of the member wound in a cylindrical shape overlap in the circumferential direction of the member wound in a cylindrical shape may be formed. Fabric member Fabric member may form an overlapping portion where the ends overlap.

[0019] In one embodiment of the present invention, the overlapping portion may include a first overlapping portion formed at a first end and a second overlapping portion formed at a second end opposite to the first end.

[0020] In one embodiment of the present invention, the areas of the first overlapping portion and the second overlapping portion may each be 1 / 8 to 1 / 3 of the area of the member in the second direction. Fabric member in the second direction.

[0021] In one embodiment of the present invention, in the first overlapping portion and the second overlapping portion, the total area of the wire bundle may be 1 / 3 to 4 / 5 of the total area of the carbon fiber bundle.

[0022] In one embodiment of the present invention, the Fabric member includes a non-overlapping portion disposed between the first overlapping portion and the second overlapping portion. The ratio of the number of the carbon fiber bundles and the wire bundles disposed in the non-overlapping portion is 1:n (where n is a natural number of 8 or less). When the carbon fiber bundles and the wire bundles in the non-overlapping portion are repeatedly arranged at a ratio of 1:n m times, the ratio of the number of the carbon fiber bundles and the wire bundles disposed in the first overlapping portion and the second overlapping portion is (n + 2):n. The first overlapping portion and the second overlapping portion may be arranged such that the carbon fiber bundles and the wire bundles are repeatedly arranged at a ratio of (n + 2):n m / 2 times.

[0023] In one embodiment of the present invention, the FabricThe member includes a non-overlapping portion disposed between the first overlapping portion and the second overlapping portion, and the ratio of the number of the carbon fiber bundles and the wire bundles disposed in the non-overlapping portion is 1:n (where n is a natural number of 8 or less), and the ratio of the number of the carbon fiber bundles and the wire bundles disposed in the first overlapping portion is 1:n (where n is a natural number of 8 or less), and the ratio of the number of the carbon fiber bundles and the wire bundles disposed in the second overlapping portion can be n:1 (where n is a natural number of 8 or less).

Advantages of the Invention

[0024] According to the present invention, the composite material self-flap shielding tube according to the present invention alternately arranges two different warp materials at a predetermined ratio, improves the workability of cable connection or cable shielding work, and while ensuring good electromagnetic wave shielding performance, the weight and cost can be minimized.

Brief Description of the Drawings

[0025]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Mode for Carrying Out the Invention

[0026] The present invention can be modified in various ways and can have various forms. Embodiments and the like will be described in detail in the text. However, this is not intended to limit the present invention to specific disclosed forms, and it should be understood that it includes all modifications, equivalents, or alternatives included in the spirit and technical scope of the present invention. Similar reference numerals are used for similar components while explaining each drawing. Terms such as first, second, etc. can be used to explain various components, but the said components etc. should not be limited by the said terms etc.

[0027] The said terms etc. are used only for the purpose of distinguishing one component from another. The terms used in the present application are merely used to explain a specific embodiment and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise.

[0028] In this application, terms such as "comprising" or "consisting of" are intended to specify the presence of the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, and it should be understood that they do not preclude in advance the presence or addition possibility of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0029] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the technical field to which the present invention pertains. Terms such as those defined in commonly used dictionaries shall be construed to have a meaning consistent with the meaning in the context of the related art, and shall not be construed to have an ideal or overly formal meaning unless clearly defined in this application.

[0030] Hereinafter, the desirable embodiments of the present invention will be described in more detail with reference to the drawings.

[0031] FIG. 1 is a conceptual diagram for explaining the electron wave shielding characteristics in a shielding material.

[0032] Generally, as shown in FIG. 1, the principle by which the shielding material S shields electron waves is that the shielding material S absorbs (SEA) a part of the radiated electron waves inside the shielding material S, reflects (SER) a part on the surface of the shielding material S, and the remaining part undergoes multiple reflections (SEMR) inside the shielding material, so as to minimize the magnitude of the electron waves transmitted through the shielding material S and propagated to the outside.

[0033] In addition, the scale at which the electron waves transmitted inside the shielding material S are quickly extinguished is related to the length that the electron waves travel inside the shielding material S. The skin depth δ, which is a concept related to the traveling length of the electron waves inside the shielding material S, means the traveling length of the electron waves until the intensity of the electron waves flowing into a specific shielding material S is attenuated to 1 / e, and is known as the following mathematical formula 1.

[0034]

Number

[0035] The fact that the electron wave shielding performance of the specific shielding material S is high means that, in other words, the magnitude of the skin depth δ described in the above mathematical formula 1 is small. Therefore, in order to enhance the electron wave shielding performance of the shielding material, it can be understood that the shielding material should be composed of a shielding substance S with a small skin depth δ, and it can be understood that a substance with high electrical conductivity should be used to reduce the skin depth δ through the above mathematical formula 1. That is, in the case of a shielding tube, it can be understood that the electrical conductivity of the material affects the shielding performance of the product.

[0036] In the past, various techniques have been applied to increase the electrical conductivity. However, in such cases, each has its limitations. When coating to increase the electrical conductivity of fibers, a metal-based coating with high conductivity will be used. At this time, the resins for coating will cause a decrease in the flame retardant performance of the tube in the future.

[0037] Even when using plating that is not a resin coating, the plated metals may peel off during handling in the process of manufacturing the product or after it is commercialized in the future, so there are difficulties in laying, using, and handling, and it is also difficult to ensure the overall shielding performance of the tube in terms of performance.

[0038] Also, when complementing in the form of covering with a metal foil on the second layer, it is not good in terms of the resilience and light weight of the tube, and when finishing treatment is done during laying, it cannot be finished neatly. This is because the metal foil layer cannot adhere tightly enough to the internal wire, which may cause the tube to open, so it is difficult to finish only with the restoring force of the tube itself, and in most cases, additional taping work or corresponding finishing work is required after laying.

[0039] Conversely, even in the case of a shielding tube composed only of a metal material, different problems occur during the production of the shielding tube. Generally, since most of the materials produced in tube form are fibers, when using warp threads made of metal for shielding, the tube itself tends to become heavier compared to fibers.

[0040] Also, when commercialized, the self-wrapping and the restoring force as a self-flap tube (the force that tries to wrap again when placed after opening the wrapped part of the tube) are too strong, or in extreme cases, different from general fiber tubes. Therefore, difficulties in work may occur during laying, such as whether it can be well opened, or when trying to cover the electric wire.

[0041] Also, when weaving the weft threads with metal as well, in the thermoforming process for forming a self-flap tube, the metal protrudes and problems occur in appearance. Therefore, in most cases, only fibers can be used as the weft threads. At this time, since the rigidity of the weft threads is almost non-existent compared to the warp threads, it is difficult to produce the appearance of the entire tube uniformly.

[0042] And when the size of the product increases, due to the configuration of the warp and weft threads, in such a thermoforming process, the combined yarn arrangement of the warp threads themselves is disrupted. Even if it is produced at a certain interval and in a certain form during weaving, in the product stage, the tube may locally receive forces in other directions, causing the finished product to be wavy, or not being evenly distributed. It can be seen that it is quite difficult to control this by engineering methods.

[0043] However, the composite material self-flap shielding tube according to an embodiment of the present invention arranges two different warp thread materials to improve the workability of cable connection or cable shielding work, while ensuring good electromagnetic wave shielding performance, and minimizing weight and cost.

[0044] Figure 2 is a perspective view of a composite material self-flap shielding tube according to an embodiment of the present invention. Figure 3 is a component of a composite material self-flap shielding tube according to an embodiment of the present inventionFabric It is a plan view showing a member.

[0045] As shown in FIGS. 2 and 3, the composite material self-flap shielding tube 100 according to an embodiment of the present invention includes a plurality of warp threads 10 arranged to extend in a first direction D1 and a plurality of weft threads 20 arranged to extend in a second direction D2 which is perpendicular to the first direction D1. Fabric It can be composed of a member 100'.

[0046] The plurality of warp threads 10 can include a carbon fiber bundle 11 and a wire bundle 12. The carbon fiber bundle 11 and the wire bundle 12 can be alternately arranged at a predetermined ratio.

[0047] Here, "bundle" means a fiber bundle or bundle composed of a plurality of fine fiber threads. In the case of carbon fibers, thousands of fine carbon fiber threads form one bundle.

[0048] The ratio of the number of the carbon fiber bundle 11 and the wire bundle 12 arranged can be 1:n (where n is a natural number of 8 or less). Or, the total area of the wire bundle can be 1 to 8 times the total area of the carbon fiber bundle. The form in which the carbon fiber bundle 11 and the wire bundle 12 are arranged will be described with reference to FIGS. 3 to 5.

[0049] The carbon fiber bundle 11 can be composed of 3k, 6k, or 12k carbon fiber threads. The carbon fiber thread can be a PAN-based carbon fiber thread having an elongation of 1% or more.

[0050] Each of the carbon fiber threads is coated with polyamide during the manufacturing process, which has the effect of preventing sticking or entanglement between the carbon fiber threads. The polyamide coating layer forms a film with good adhesiveness and good flexibility on the carbon fiber surface.

[0051] As another embodiment, the carbon fiber bundle 11 is composed of carbon fiber yarns plated with metal, and the metal plating material of the carbon fiber yarns can be formed of copper, gold, silver, aluminum, nickel, or an alloy material thereof.

[0052] Also, the wire bundle 12 can be arranged in the same first direction D1 as the carbon fiber bundle 11. The wire bundle 12 can be provided to improve the electron wave shielding performance that is not sufficient with only carbon fiber and to omit other processes such as welding during shrinkage.

[0053] As the metal wire constituting the wire bundle 12, a wire of CCA (Copper Clad Aluminum) material can be used.

[0054] The CCA (Copper Clad Aluminum) material wire is manufactured by covering the outside of an aluminum wire with a copper layer, welding to form a copper clad layer, and making this into a wire having an outer diameter of a desired size by processes such as drawing. It has a feature of evenly having the advantages of copper and aluminum, with an aluminum core inside and a copper clad layer outside the core. The manufacturing method of the CCA wire is not limited to the above method, and various processes such as plating can be considered, but applying the welding and drawing processes is advantageous for forming the copper clad layer uniformly.

[0055] The aluminum wire can be formed of a material in which silicon (Si), iron (Fe), copper (Cu), manganese (Mn), magnesium (Mg), chromium (Cr), and zinc (Zn) are mixed in aluminum (Al), and the copper clad layer can be formed of oxygen-free copper with a purity of 99.9% or more.

[0056] CCA material wires can have the properties of copper or aluminum enhanced according to the ratio of copper to aluminum, for example, the volume ratio. However, the copper volume ratio of CCA material wires can be determined by factors such as the diameter of the wire, the electrical conductivity required for a single wire, or the weldability of the copper clad layer.

[0057] As another embodiment, the metal wires constituting the wire bundle 12 can be made of copper, gold, silver, aluminum, nickel materials, or alloy materials of copper, gold, silver, aluminum, or nickel, or metal materials plated with copper, gold, silver, aluminum, or nickel.

[0058] The carbon fiber bundle 11 and the wire bundle 12 can be arranged alternately at a predetermined ratio. In this embodiment, the carbon fiber bundle 11 and the wire bundle 12 can be arranged at a ratio of 1:1. For example, one carbon fiber bundle 11 can be arranged, and then one wire bundle 12 can be arranged, and such a ratio arrangement can be repeated.

[0059] The weft yarn 20 can be formed of shrinkable fiber yarns 21 arranged in a second direction D2 that is perpendicular to the first direction D1. The shrinkable fiber yarns 21 can be formed of polyolefin-based fiber yarns.

[0060] Polyolefin is a type of synthetic resin, which means an organic substance made by addition polymerization reaction of olefins (hydrocarbons containing one double bond per molecule) such as ethylene and propylene.

[0061] In terms of the material of the polyolefin fiber yarn, polyethylene (HDPE (High Density Polyethylene), LDPE (Low Density Polyethylene), LLDPE (Linear Low Density Polyethylene), EVA (ethylene-vinylacetate copolymer), UHMWPE (ultra-high molecular weight PE), etc.) can be applied. In addition, various polypropylenes (PP, polypropylene), rubber / elastomers (EPR (ethylene-propylene rubber), EPDM (ethylene-propylene-diene monomer), POE (polyolefin elastomer, ethylene / octene-1)), etc. may also be applicable.

[0062] Polyolefin fiber yarns are generally elastic, insoluble in most organic solvents, resistant to acids and bases, electrically insulating, and are utilized as materials for general heat-shrinkable tubes.

[0063] The shrinkable fiber yarns 21 made of such polyolefin materials are configured as weft yarns 20 Fabric and arranged in the second direction D2 of the member 100'.

[0064] According to the present invention Fabric The member 100' and the composite material self-flap shielding tube 100 include, in the first direction D1, a carbon fiber bundle 11 composed of carbon fiber yarns and a wire bundle 12 composed of metal wires, and in the second direction D2, a self-flap (self-wrapping), that is, a plurality of resin material shrinkable fiber yarns 21 having shrinkability that shrink upon heating, configured as weft yarns 20 Weave While maximizing lightweight and shielding performance, convenience as a finishing material can be imparted.

[0065] FIG. 4 is a plan view showing the members Fabric constituting the composite material self-flap shielding tube according to an embodiment of the present invention.

[0066] As shown in FIGS. 2 and 4, a composite material self-flap shielding tube 100 according to an embodiment of the present invention includes a plurality of warp threads 10 arranged to extend in a first direction D1 and a plurality of weft threads 20 arranged to extend in a second direction D2 which is perpendicular to the first direction D1. Fabric It can be composed of a member 100'.

[0067] In this embodiment, one carbon fiber bundle 11 and five wire bundles 12 can be alternately arranged. That is, during weaving, the first warp thread is the carbon fiber bundle 11, the second warp thread is the wire bundle 12, the third warp thread is the wire bundle 12, the fourth warp thread is the wire bundle 12, the fifth warp thread is the wire bundle 12, and the sixth warp thread is the wire bundle 12, and such an arrangement ratio can be repeatedly made.

[0068] FIG. 5 is a plan view showing the members constituting a composite material self-flap shielding tube according to an embodiment of the present invention. Fabric It is a plan view showing the members.

[0069] As shown in FIGS. 2 and 5, a composite material self-flap shielding tube 100 according to an embodiment of the present invention includes a plurality of warp threads 10 arranged to extend in a first direction D1 and a plurality of weft threads 20 arranged to extend in a second direction D2 which is perpendicular to the first direction D1. Fabric It can be composed of a member 100'.

[0070] In this embodiment, one carbon fiber bundle 11 and eight wire bundles 12 can be alternately arranged. That is, during weaving, the first warp thread is the carbon fiber bundle 11, the second warp thread is the wire bundle 12, the third warp thread is the wire bundle 12, the fourth warp thread is the wire bundle 12, the fifth warp thread is the wire bundle 12, the sixth warp thread is the wire bundle 12, the seventh warp thread is the wire bundle 12, the eighth warp thread is the wire bundle 12, and the ninth warp thread is the wire bundle 12, and such an arrangement ratio can be repeatedly made.

[0071] In the composite material self-flap shielding tube according to an embodiment of the present invention, the ratio of the number of carbon fiber bundles 11 and wire bundles 12 arranged can be 1:n (where n is a natural number of 8 or less). However, the present invention is not limited thereto, and the ratio can change depending on the number of carbon fiber filaments in the carbon fiber bundle.

[0072] For example, when the carbon fiber bundle is composed of 3k carbon fiber filaments, the ratio of the number of carbon fiber bundles and the wire bundles arranged can be 1:n (where n is a natural number of 32 or less). When the carbon fiber bundle is composed of 6k carbon fiber filaments, the ratio of the number of carbon fiber bundles and the wire bundles arranged can be 1:n (where n is a natural number of 16 or less). When the carbon fiber bundle is composed of 12k carbon fiber filaments, the ratio of the number of carbon fiber bundles and the wire bundles arranged can be 1:n (where n is a natural number of 8 or less). Alternatively, the total area of the wire bundle can be 1 to 32 times, 1 to 16 times, and 1 to 8 times each of the total area of the carbon fiber bundle.

[0073] FIG. 6 is a graph showing the test results of the electron wave shielding test of the composite material self-flap shielding tube according to an embodiment of the present invention.

[0074] As shown in FIG. 6, it is composed of one carbon fiber bundle 11 and five wire bundles 12 arranged alternately. Fabric The electronic wave shielding test results of the composite material self-flap shielding tube composed of members are shown.

[0075] In the case of the composite material self-flap shielding tube 100 according to the present invention, it can be confirmed that a stable shielding rate with a shielding rate (SE) of 50 dB or more, additionally considering a safety factor, can be ensured from 40 dB, which is the required shielding rate for the full length of a general vehicle under 1 to 10 MHz signal conditions.

[0076] Also, the composite material self-flap shielding tube 100 according to the present invention has a shielding rate (dB) of 50 dB or more even when considering a safety factor under signal conditions of 1 MHz to 10 MHz, and furthermore, it can be confirmed that it satisfies 40 dB or more, which is the required shielding rate for the full length of a general vehicle, even at 100 MHz (100,000 KHz), which is a high-frequency signal condition.

[0077] FIG. 7 is a graph showing the electronic wave shielding test results of the composite material self-flap shielding tube according to an embodiment of the present invention.

[0078] As shown in FIG. 7, it is composed of one carbon fiber bundle 11 and eight wire bundles 12 arranged alternately. Fabric The electronic wave shielding test results of the composite material self-flap shielding tube composed of members are shown.

[0079] In the case of the composite material self-flap shielding tube 100 according to the present invention, it can be confirmed that a stable shielding rate with a shielding rate (SE) of 50 dB or more, additionally considering a safety factor, can be ensured from 40 dB, which is the required shielding rate for the full length of a general vehicle under 1 to 10 MHz signal conditions.

[0080] In addition, the composite material self-flap shielding tube 100 according to the present invention has a shielding rate (dB) of 50 dB or more even when considering a safety factor under signal conditions of 1 MHz to 10 MHz. Furthermore, it can be confirmed that even at 100 MHz (100,000 KHz), which is a high-frequency signal condition, it satisfies a shielding rate of 40 dB or more, which is required for the full length of a general vehicle.

[0081] FIG. 8 is a cross-sectional view showing a composite material self-flap shielding tube according to an embodiment of the present invention. FIG. 9 is a plan view showing members constituting the self-flap shielding tube according to an embodiment of the present invention. Fabric is a plan view showing the members.

[0082] As shown in FIGS. 8 and 9, the members constituting the self-flap shielding tube according to an embodiment of the present invention Fabric can include a first overlapping portion OA1, a second overlapping portion OA2, and a non-overlapping portion NA.

[0083] When the members constituting the self-flap shielding tube are wound in a cylindrical shape, an overlapping portion where the ends of the wound members overlap in the circumferential direction of the wound members can be formed. The overlapping portion can include a first overlapping portion OA1 formed at a first end and a second overlapping portion OA2 formed at a second end opposite to the first end. A non-overlapping portion NA can be arranged between the first overlapping portion OA1 and the second overlapping portion OA2. Fabric When the members are wound in a cylindrical shape, an overlapping portion where the ends of the wound members overlap in the circumferential direction of the wound members can be formed. Fabric in the circumferential direction of the wound members Fabric The area of the first overlapping portion OA1 and the second overlapping portion OA2 can each be 1 / 8 to 1 / 3 of the area of the members in the second direction. In the case of FIG. 8, the area of the first overlapping portion OA1 and the second overlapping portion OA2 can each be 1 / 3 of the area in the second direction.

[0084] The area of the first overlapping portion OA1 and the second overlapping portion OA2 can each be 1 / 8 to 1 / 3 of the area of the members in the second direction. Fabric The area of the first overlapping portion OA1 and the second overlapping portion OA2 can each be 1 / 3 of the area in the second direction.

[0085] FIG. 10 shows members constituting the self-flap shielding tube according to an embodiment of the present invention. FabricIt is a plan view showing a member.

[0086] As shown in FIG. 10, the members constituting the self-flap shielding tube according to an embodiment of the present invention Fabric can include an overlapping portion and a non-overlapping portion. The ratio of the number of the carbon fiber bundles and the wire bundles arranged can be formed to be different between the overlapping portion and the non-overlapping portion.

[0087] The ratio of the number of the carbon fiber bundles and the wire bundles arranged in the non-overlapping portion is 1:n (where n is a natural number of 8 or less). When the carbon fiber bundles and the wire bundles in the non-overlapping portion are arranged repeatedly m times at a ratio of 1:n, the ratio of the number of the carbon fiber bundles and the wire bundles arranged in the first overlapping portion and the second overlapping portion is (n + 2):n, and the first overlapping portion and the second overlapping portion can be arranged such that the carbon fiber bundles and the wire bundles are repeated m / 2 times at a ratio of (n + 2):n.

[0088] For example, as shown in FIG. 10, when the ratio of the number of the carbon fiber bundles 11 and the wire bundles 12 arranged in the non-overlapping portion NA is 1:5 and they are arranged repeatedly 2 times at a ratio of 1:5, the ratio of the number of the carbon fiber bundles 11 and the wire bundles 12 arranged in the first overlapping portion OA1 and the second overlapping portion OA2 is 7:5, and the first overlapping portion OA1 and the second overlapping portion OA2 can be arranged such that the carbon fiber bundles 11 and the wire bundles 12 are repeated 1 time at a ratio of 7:5.

[0089] In this embodiment, the total area of the wire bundles in the first overlapping portion and the second overlapping portion can be 1 / 3 to 4 / 5 of the total area of the carbon fiber bundles.

[0090] In this embodiment, the number of wire bundles 12 arranged in the overlapping portions OA1 and OA2 can be made the same as the number of wire bundles 12 arranged in the non-overlapping portion NA. Therefore, good electromagnetic wave shielding performance can be ensured and the weight can be minimized.

[0091] FIG. 11 is a plan view showing the members constituting the self-flap shielding tube according to an embodiment of the present invention. Fabric is a plan view showing the members.

[0092] As shown in FIG. 11, the members constituting the self-flap shielding tube according to an embodiment of the present invention Fabric can include an overlapping portion and a non-overlapping portion. The ratio of the number of the carbon fiber bundles and the wire bundles arranged can be formed to be different between the overlapping portion and the non-overlapping portion.

[0093] The ratio of the number of the carbon fiber bundles 11 and the wire bundles 12 arranged in the non-overlapping portion NA is 1:n (where n is a natural number of 8 or less), and the ratio of the number of the carbon fiber bundles 11 and the wire bundles 12 arranged in the first overlapping portion OA1 is 1:n (where n is a natural number of 8 or less), and the ratio of the number of the carbon fiber bundles 11 and the wire bundles 12 arranged in the second overlapping portion OA2 can be n:1 (where n is a natural number of 8 or less).

[0094] For example, as shown in FIG. 11, when the ratio of the number of the carbon fiber bundles 11 and the wire bundles 12 arranged in the non-overlapping portion NA is 1:5 and is arranged by repeating twice at a ratio of 1:5, the ratio of the number of the carbon fiber bundles 11 and the wire bundles 12 arranged in the first overlapping portion OA1 is 1:5 and is arranged by repeating twice at a ratio of 1:5, and the ratio of the number of the carbon fiber bundles 11 and the wire bundles 12 arranged in the second overlapping portion OA2 is 5:1 and can be arranged by repeating twice at a ratio of 5:1.

[0095] In this embodiment, the ratio of the number of the carbon fiber bundles 11 and the wire bundles 12 arranged in the first overlapping portion OA1 and the non-overlapping portion NA is the same, and the ratio of the number of the carbon fiber bundles 11 and the wire bundles 12 arranged in the second overlapping portion OA2 can be formed with a higher ratio of carbon fiber.

[0096] Also, as another embodiment, the carbon fiber bundle 11 arranged in the second overlapping portion OA2 can be replaced with a non-conductive material. For example, a multi-filament material formed of aramid or polyester can be used instead of the carbon fiber bundle 11.

[0097] Also, in this embodiment, it has been described that the first overlapping portion OA1 and the second overlapping portion OA2 are formed with the same area, but the present invention is not limited to this, and the second overlapping portion OA2 can be formed with an area smaller than that of the first overlapping portion OA1. For example, the ratio of the number of the carbon fiber bundles 11 and the wire bundles 12 arranged in the first overlapping portion OA1 is 1:5, and it is arranged by repeating twice at a ratio of 1:5. The ratio of the number of the carbon fiber bundles 11 and the wire bundles 12 arranged in the second overlapping portion OA2 can be arranged once at a ratio of 5:1 and once at a ratio of 4:1 or less.

[0098] In this embodiment, in the first overlapping portion OA1 and the non-overlapping portion NA, a proper positive number of wire bundles are arranged, and good electron wave shielding performance can be ensured. The second overlapping portion OA2 is a portion arranged outside during overlapping. By arranging the number of carbon fiber bundles more than the number of wire bundles, the workability of the cable shielding operation can be improved and the weight can be reduced. Also, as another embodiment, instead of the carbon fiber bundle, a non-conductive material can be used to reduce the manufacturing cost.

[0099] In the above, the embodiments and the like have been described with reference thereto. However, it will be understood by those of ordinary skill in the art that the present invention can be variously modified and changed without departing from the spirit and scope of the present invention described in the following claims.

Claims

1. A plurality of carbon fiber bundles arranged to extend in a first direction; A plurality of wire bundles each extending in the first direction parallel to the carbon fiber bundles and arranged alternately, the wire bundles being made of a metal wire; A plurality of weft yarns arranged extending in a second direction perpendicular to the first direction; Including, The carbon fiber bundle, the wire bundle, and the weft yarn are woven into a woven fabric member, and the woven fabric member is wound into a cylindrical shape. A composite self-wrapped shielding tube, wherein the ratio of the number of the carbon fiber bundles to the number of the wire bundles is 1:n (where n is a natural number greater than 1 and less than or equal to 8).

2. 2. The composite self-wrapped shielding tube of claim 1, wherein the total area of ​​the wire bundles is greater than 1 and less than 8 times the total area of ​​the carbon fiber bundles.

3. 2. The composite self-wrapped shielding tube of claim 1, wherein the carbon fiber bundle is comprised of 3k, 6k, or 12k carbon fiber yarns.

4. 4. The composite self-wrapped shielding tube of claim 3, wherein the carbon fiber yarns constituting the carbon fiber bundle are polyamide coated.

5. 2. The composite self-wrap shielding tube according to claim 1, wherein the metal wires constituting the wire bundle are made of a copper clad aluminum (CCA) material.

6. The composite self-wrapped shielding tube according to claim 5, characterized in that the metal wires constituting the wire bundle are made of a material in which aluminum (Al) is mixed with silicon (Si), iron (Fe), copper (Cu), manganese (Mn), magnesium (Mg), chromium (Cr), and zinc (Zn).

7. 2. The composite self-wrapped shielding tube according to claim 1, wherein the composite self-wrapped shielding tube has a shielding ratio (dB) of 40 dB or more under a 100 MHz signal condition.

8. The ratio of the number of the carbon fiber bundles to the number of the wire bundles is 1:n (where n is a natural number greater than 1 and less than or equal to 32); 2. The composite self-wrapped shielding tube of claim 1, wherein the carbon fiber bundle is composed of 3k carbon fiber yarns.

9. The ratio of the number of the carbon fiber bundles to the number of the wire bundles is 1:n (where n is a natural number greater than 1 and less than or equal to 16); 2. The composite self-wrapped shielding tube of claim 1, wherein the carbon fiber bundle is comprised of 6k carbon fiber yarns.

10. The ratio of the number of the carbon fiber bundles to the number of the wire bundles is 1:n (wherein n is a natural number greater than 1 and less than or equal to 8); 2. The composite self-wrapped shielding tube of claim 1, wherein the carbon fiber bundle is comprised of 12k carbon fiber yarns.

11. 2. The composite self-wrapped shielding tube according to claim 1, wherein when the woven fabric member is wound into a cylindrical shape, an overlapping portion is formed in which the ends of the woven fabric member overlap in the circumferential direction of the cylindrically wound woven fabric member.

12. The overlapping portion is a first overlapping portion formed at the first end portion; a second overlapping portion formed at a second end portion opposite the first end portion; 12. The composite self-wrapped shielding tube of claim 11, comprising:

13. 13. The composite self-wrapped shielding tube according to claim 12, wherein the area of ​​the first overlapping portion and the area of ​​the second overlapping portion are each 1 / 8 to 1 / 3 of the area of ​​the woven fabric member.

14. 13. The composite self-wrapped shielding tube of claim 12, wherein in the first overlapping portion and the second overlapping portion, the total area of ​​the wire bundle is 1 / 3 to 4 / 5 of the total area of ​​the carbon fiber bundle.

15. the fabric member includes a non-overlapping portion disposed between the first overlapping portion and the second overlapping portion, The ratio of the number of the carbon fiber bundles and the number of the wire bundles arranged in the non-overlapping portion is 1:n (wherein n is a natural number greater than 1 and less than or equal to 8); When the carbon fiber bundle and the wire bundle of the non-overlapping portion are arranged in a ratio of 1:n and are repeated m times, The composite self-wrapped shielding tube of claim 12, characterized in that the ratio of the number of carbon fiber bundles and the number of wire bundles arranged in the first overlapping portion and the second overlapping portion is (n+2):n, and the first overlapping portion and the second overlapping portion have the carbon fiber bundles and the wire bundles arranged in a ratio of (n+2):n m / 2 times.

16. the fabric member includes a non-overlapping portion disposed between the first overlapping portion and the second overlapping portion, The ratio of the number of the carbon fiber bundles and the number of the wire bundles arranged in the non-overlapping portion is 1:n (wherein n is a natural number greater than 1 and less than or equal to 8); The ratio of the number of the carbon fiber bundles and the number of the wire bundles arranged in the first overlapping portion is 1:n (wherein n is a natural number greater than 1 and less than or equal to 8); The composite self-wrapped shielding tube according to claim 12, characterized in that the ratio of the number of the carbon fiber bundles and the number of the wire bundles arranged in the second overlapping portion is n:1 (where n is a natural number greater than 1 and less than or equal to 8).

17. A cable covered with a composite self-wrapped shielding tube according to any one of claims 1 to 16.

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