WO2022234992A1 - 복합소재 셀프랩 차폐 튜브 - Google Patents
복합소재 셀프랩 차폐 튜브 Download PDFInfo
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- WO2022234992A1 WO2022234992A1 PCT/KR2022/005854 KR2022005854W WO2022234992A1 WO 2022234992 A1 WO2022234992 A1 WO 2022234992A1 KR 2022005854 W KR2022005854 W KR 2022005854W WO 2022234992 A1 WO2022234992 A1 WO 2022234992A1
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- carbon fiber
- overlapping portion
- wire
- bundles
- wrap
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0073—Shielding materials
- H05K9/0081—Electromagnetic shielding materials, e.g. EMI, RFI shielding
- H05K9/009—Electromagnetic shielding materials, e.g. EMI, RFI shielding comprising electro-conductive fibres, e.g. metal fibres, carbon fibres, metallised textile fibres, electro-conductive mesh, woven, non-woven mat, fleece, cross-linked
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0073—Shielding materials
- H05K9/0098—Shielding materials for shielding electrical cables
Definitions
- the present invention relates to a composite self-wrap shielding tube, and more particularly, to a composite self-wrap shield that improves workability of cable connection or cable shielding work, and can minimize weight and cost while securing good electromagnetic wave shielding performance It's about tubes.
- tubular shielding material In the case of the conventional tubular shielding material, it was made of only one of the conductive fibers or the conductive metal material. In the case of tubular shielding fabrics using conductive fibers, due to lack of shielding properties, additionally overlaid with metal foil rather than a single-layer structure, or to compensate for this, increase conductivity through plating or other surface treatment methods on the fibers themselves, or use only conductive metal materials to make tubular A shielding material was prepared.
- the conductivity of the fiber which influences the shielding properties
- the conductivity of the fiber is relatively insufficient compared to the metal material, and additional measures are taken on the fiber to compensate for the insufficient shielding performance.
- the tube There is a risk that the overall flame retardancy is lowered, or in the manufacturing process of the tube or in handling after manufacturing, separation and peeling of plating and coating materials, and non-uniformity of shielding properties by section due to this may occur.
- this part When a multi-layer structure is applied to compensate for this, since the characteristics of the metal foil layer are stronger than those of the tube, this part also has a problem in that handling as a tube increases.
- the base material for processing into a tube shape is a wire-type metal alloy, so the fabric made of fiber is stiff and the tube is stiff. Inconvenience exists in handling the form.
- the technical problem of the present invention was conceived in this regard, and the object of the present invention is to improve the workability of cable connection or cable shielding work, and to secure good electromagnetic wave shielding performance while minimizing weight and cost.
- the object of the present invention is to improve the workability of cable connection or cable shielding work, and to secure good electromagnetic wave shielding performance while minimizing weight and cost.
- a composite self-wrap shielding tube is a plurality of carbon fiber bundles arranged extending in a first direction, extending in the first direction parallel to the carbon fiber bundle, A plurality of wire bundles consisting of a metal wire and a plurality of weft yarns extending in a second direction perpendicular to the first direction are alternately arranged, and braiding the carbon fiber bundle, the wire bundle and the weft yarn It is formed by winding the braided member constituted in a cylindrical shape.
- the ratio of the number of carbon fiber bundles and the number of wire bundles disposed may be 1:n (where n is a natural number less than or equal to 8).
- the total area of the wire bundle may be 1 to 8 times the total area of the carbon fiber bundle.
- the carbon fiber bundle may be composed of 3k strands, 6k strands, or 12k strands of carbon fiber yarns.
- the carbon fiber yarns constituting the carbon fiber bundle may be coated with polyamide.
- the metal wire constituting the wire bundle may be made of CCA (Copper Clad Aluminum) material.
- the metal wire constituting the wire bundle is aluminum ((Al), silicon (Si), iron (Fe), copper (Cu), manganese (Mn), magnesium (Mg), chromium (Cr) and zinc (Zn) may be formed of a mixed material.
- the composite self-wrap shielding tube may have a shielding ratio (dB) of 40 dB or more under a signal condition of 100 MHz.
- the ratio of the number of carbon fiber bundles and the wire bundles is 1: n (here, n is a natural number less than or equal to 32), and the carbon fiber bundle is a 3k-stranded carbon fiber yarn.
- n is a natural number less than or equal to 32
- the carbon fiber bundle is a 3k-stranded carbon fiber yarn.
- the total area of the wire bundle may be 1 to 32 times the total area of the carbon fiber bundle.
- the ratio of the number of the carbon fiber bundles and the wire bundles is 1: n (where n is a natural number less than or equal to 16), and the carbon fiber bundle is a 6k-stranded carbon fiber yarn.
- n is a natural number less than or equal to 16
- the carbon fiber bundle is a 6k-stranded carbon fiber yarn.
- the total area of the wire bundle may be 1 to 16 times the total area of the carbon fiber bundle.
- the ratio of the number of the carbon fiber bundles and the wire bundles is 1: n (here, n is a natural number less than or equal to 8), and the carbon fiber bundle is a 12k-stranded carbon fiber yarn.
- n is a natural number less than or equal to 8
- the carbon fiber bundle is a 12k-stranded carbon fiber yarn.
- the total area of the wire bundle may be 1 to 8 times the total area of the carbon fiber bundle.
- an overlapping portion when the braided member is wound in a cylindrical shape, an overlapping portion may be formed in which the ends of the braided member overlap in a circumferential direction of the cylindrically wound braided member.
- 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.
- an area of the first overlapping portion and the second overlapping portion may be 1/8 to 1/3 of an area of the braided member in the second direction, respectively.
- the total area of the wire bundle may be 1/3 to 4/5 of the total area of the carbon fiber bundle.
- the braided member includes a non-overlapping portion disposed between the first overlapping portion and the second overlapping portion, the number of which the carbon fiber bundle and the wire bundle of the non-overlapping portion are disposed
- the ratio of is 1:n (where n is a natural number less than or equal to 8), and when the carbon fiber bundle and the wire bundle of the non-overlapping part are repeatedly arranged m times at a ratio of 1:n, the first overlapping part and a ratio of the number of the carbon fiber bundles and the wire bundles disposed in the second overlapping portion is (n+2):n, and the first overlapping portion and the second overlapping portion are the carbon fiber bundles and the wire bundles. It may be arranged repeatedly m/2 times in a ratio of (n+2):n.
- the braided member includes a non-overlapping portion disposed between the first overlapping portion and the second overlapping portion, the number of which the carbon fiber bundle and the wire bundle of the non-overlapping portion are disposed
- the ratio of is 1:n (here, n is a natural number less than or equal to 8), and the ratio of the number of the carbon fiber bundles and the wire bundles in the first overlapping part is 1:n (here, n is a natural number less than or equal to 8) ), and the ratio of the number of the carbon fiber bundles and the wire bundles disposed in the second overlapping portion may be n:1 (where n is a natural number less than or equal to 8).
- the composite material self-wrap shielding tube according to the present invention alternately arranges two different inclined materials at a predetermined ratio to improve workability of cable connection or cable shielding work, while ensuring good electromagnetic wave shielding performance Weight and cost can be minimized.
- 1 is a conceptual diagram for explaining electromagnetic wave shielding characteristics in a shielding material.
- FIG. 2 is a perspective view of a composite self-wrap shielding tube according to an embodiment of the present invention.
- FIG. 3 is a plan view illustrating a braided member constituting a composite self-wrap shielding tube according to an embodiment of the present invention.
- FIG. 4 is a plan view illustrating a braided member constituting a composite self-wrap shielding tube according to an embodiment of the present invention.
- FIG. 5 is a plan view illustrating a braided member constituting a composite self-wrap shielding tube according to an embodiment of the present invention.
- FIG. 6 is a graph showing the electromagnetic wave shielding test results of the composite material self-wrap shielding tube according to an embodiment of the present invention.
- FIG. 7 is a graph showing the electromagnetic wave shielding test results of the composite material self-wrap shielding tube according to an embodiment of the present invention.
- FIG. 8 is a cross-sectional view illustrating a composite self-wrap shielding tube according to an embodiment of the present invention.
- FIG. 9 is a plan view illustrating a braided member constituting a self-wrap shielding tube according to an embodiment of the present invention.
- FIG. 10 is a plan view illustrating a braided member constituting a self-wrap shielding tube according to an embodiment of the present invention.
- FIG. 11 is a plan view illustrating a braided member constituting a self-wrap shielding tube according to an embodiment of the present invention.
- 1 is a conceptual diagram for explaining electromagnetic wave shielding characteristics in a shielding material.
- the principle that the shielding material (S) shields electromagnetic waves is as shown in FIG. 1 , as shown in FIG. (S) It is to minimize the size of electromagnetic waves transmitted through the shielding material (S) and propagated to the outside by reflecting (SER) from the surface or performing multiple reflection (SEMR) inside the shielding material.
- SER reflecting
- SEMR multiple reflection
- the measure at which the electromagnetic wave transmitted into the shielding material (S) rapidly disappears is related to the length of the electromagnetic wave propagating inside the shielding material (S), and a concept related to the propagation length of the electromagnetic wave inside the shielding material (S)
- the in-skin depth ( ⁇ , Skin depth) refers to the propagation length of the electromagnetic wave until the intensity of the electromagnetic wave introduced into the specific shielding material S is attenuated by 1/e, and is known as Equation 1 below.
- the high electromagnetic wave shielding performance of the specific shielding material S means that the skin depth ⁇ described in Equation 1 above is small. Therefore, it can be seen that the shielding material must be composed of a shielding material (S) having a small skin depth ( ⁇ ) in order to increase the electromagnetic wave shielding performance of the shielding material. You know you have to use the material. That is, in the case of a shielding tube, it can be seen that the electrical conductivity of the material influences the shielding performance of the product.
- the secondary layer is supplemented by wrapping the metal foil, it is not good in terms of the tube's stability or lightness, and it is not finished neatly even when the finishing treatment is performed during installation. This is because the metal foil layer does not adhere to the inner wire tightly enough, and this may cause the tube to open. because it wins
- the self-curing and self-wrap tube's restoring force (the force to be rolled back when the rolled part of the tube is opened and left alone) is too strong, or unlike general fiber tubes, there are many extreme cases, so it does not open well during installation. Working difficulties can arise when trying to wrap wires.
- weft yarn is also woven with metal
- fiber in most cases, there is no choice but to use fiber as the weft yarn because the metal protrudes in the thermoforming process for self-wrap tube and causes a problem in appearance. Therefore, at this time, it is difficult to uniformly manufacture the appearance of the entire tube because the weft yarn is relatively stiff compared to the warp yarn.
- the composite self-wrap shielding tube according to an embodiment of the present invention improves workability of cable connection or cable shielding work by arranging two different inclined materials, and minimizes weight and cost while securing good electromagnetic wave shielding performance can do.
- FIG. 2 is a perspective view of a composite self-wrap shielding tube according to an embodiment of the present invention.
- 3 is a plan view illustrating a braided member constituting a composite self-wrap shielding tube according to an embodiment of the present invention.
- the composite material self-wrap shielding tube 100 has a plurality of inclinations 10 and the first direction ( It may be composed of a braided member 100 ′ including a plurality of weft yarns 20 , which are arranged to extend in a second direction D2 , which is a direction perpendicular to D1 ).
- the plurality of warps 10 may include a carbon fiber bundle 11 and a wire bundle 12 .
- the carbon fiber bundle 11 and the wire bundle 12 may be alternately disposed at a predetermined ratio.
- 'bundle' refers to a bundle or bundle of fibers composed of a plurality of fine fiber yarns, and in the case of carbon fiber, several thousand fine carbon fiber yarns constitute one bundle.
- a ratio of the number of the carbon fiber bundles 11 and the wire bundles 12 disposed may be 1:n (where n is a natural number less than or equal to 8).
- the total area of the wire bundle may be 1 to 8 times the total area of the carbon fiber bundle.
- the carbon fiber bundle 11 may be composed of 3k strands, 6k strands, or 12k strands of carbon fiber yarns.
- the carbon fiber yarn may be a PAN-based carbon fiber yarn having an elongation of 1% or more.
- Each of the carbon fiber yarns is coated with polyamide during the manufacturing process, thereby preventing adhesion or tangling between the carbon fiber yarns.
- the polyamide coating layer forms a film with good adhesion and good warpage on the carbon fiber surface.
- the carbon fiber bundle 11 is composed of a metal-plated carbon fiber yarn, and the metal plating material of the carbon fiber yarn may be formed of copper, gold, silver, aluminum, nickel, or an alloy material thereof.
- the wire bundle 12 may be disposed in the same first direction D1 as the carbon fiber bundle 11 .
- the wire bundle 12 may be provided to improve electromagnetic wave shielding performance, which is not sufficient only with carbon fiber, and to omit a separate welding process during shrinkage.
- a wire made of a copper clad aluminum (CCA) material may be used as the metal wire constituting the wire bundle 12 .
- the wire made of CCA (Copper Clad Aluminum) material is manufactured by wrapping the outside of the aluminum wire with a copper layer and welding it to form a copper clad layer, which is then made into a wire having an outer diameter of the desired size through a process such as drawing.
- the aluminum core and the copper clad layer are provided on the outside of the core, so it has the advantages of copper and aluminum.
- the manufacturing method of the CCA wire is not limited to the above method, and various processes such as plating may be considered, but it is advantageous to apply a welding and wire drawing process to uniformly form a copper clad layer.
- the aluminum wire is 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).
- the copper clad layer may be formed of oxygen-free copper having a purity of 99.9% or more.
- the properties of copper or aluminum can be strengthened depending on the ratio of copper and aluminum, for example, the volume ratio, but depending on the diameter of the wire, the electrical conductivity required for a single wire, or the weldability of the copper cladding layer, the CCA material
- the copper volume fraction of the wire can be determined.
- the metal wire constituting the wire bundle 12 is made of copper, gold, silver, aluminum, nickel, or an alloy material of copper, gold, silver, aluminum or nickel, or copper, gold, silver, aluminum. Alternatively, it may be a nickel-plated metal material.
- the carbon fiber bundle 11 and the wire bundle 12 may be alternately disposed at a predetermined ratio.
- the carbon fiber bundle 11 and the wire bundle 12 may be arranged in a ratio of 1:1.
- one carbon fiber bundle 11 is disposed, and then one wire bundle 12 is disposed, and the arrangement of such a ratio may be repeatedly made.
- the weft yarn 20 may be formed of a shrinking fiber yarn 21 disposed in a second direction D2 that is perpendicular to the first direction D1.
- the shrinkable fiber yarn 21 may be formed of a polyolefin-based fiber yarn.
- Polyolefin is a kind of synthetic resin, and refers to an organic material made by addition polymerization reaction of olefins such as ethylene and propylene (hydrocarbons containing one double bond per molecule).
- Polyolefin fibers include 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.)
- various polypropylene PP, polypropylene
- rubber / elastomer EPR (ethylene-propylene rubber), EPDM (ethylene-propylene-diene monomer), POE (polyolefin elastomer, ethylene/octene-1)), etc.
- EPR ethylene-propylene rubber
- EPDM ethylene-propylene-diene monomer
- POE polyolefin elastomer, ethylene/octene-1)
- Polyolefin fiber yarns are generally elastic, insoluble in most organic solvents, resistant to acids and bases, have electrical insulation properties, and are commonly used as materials for heat shrinkable tubing.
- the shrink fiber yarn 21 made of a polyolefin material made of such a polyolefin material is constituted by the weft yarn 20 and arranged in the second direction D2 of the braiding member 100 ′.
- the braided member 100 ′ and the composite self-wrap shielding tube 100 according to the present invention have a carbon fiber bundle 11 composed of carbon fiber yarn and a wire bundle 12 composed of a metal wire in the first direction D1 . ) and the second direction (D2), self-wrap (self-curling), that is, by braiding the weft yarn 20 composed of a plurality of shrinkable fiber yarns 21 made of a resin material having heat-shrinkable shrinkage when heat is applied, thereby reducing light weight and shielding. While maximizing performance, it can provide convenience as a finishing material.
- FIG. 4 is a plan view illustrating a braided member constituting a composite self-wrap shielding tube according to an embodiment of the present invention.
- the composite material self-wrap shielding tube 100 includes a plurality of inclinations 10 and the first direction ( It may be composed of a braided member 100 ′ including a plurality of weft yarns 20 , which are arranged to extend in a second direction D2 , which is a direction perpendicular to D1 ).
- one carbon fiber bundle 11 and five wire bundles 12 may be alternately disposed in the carbon fiber bundle 11 and the wire bundle 12 . That is, during weaving, the 1st warp is a carbon fiber bundle (11), the 2nd warp is a wire bundle (12), the 3rd warp is a wire bundle (12), the 4th warp is a wire bundle (12), and the 5th warp is a wire
- the bundle 12, the 6th warp is composed of a wire bundle 12, and the arrangement of this ratio can be made repeatedly.
- FIG. 5 is a plan view illustrating a braided member constituting a composite self-wrap shielding tube according to an embodiment of the present invention.
- the composite material self-wrap shield tube 100 includes a plurality of inclinations 10 and the first direction ( It may be composed of a braided member 100 ′ including a plurality of weft yarns 20 , which are arranged to extend in a second direction D2 , which is a direction perpendicular to D1 ).
- one carbon fiber bundle 11 and eight wire bundles 12 may be alternately disposed in the carbon fiber bundle 11 and the wire bundle 12 . That is, during weaving, the 1st warp is a carbon fiber bundle (11), the 2nd warp is a wire bundle (12), the 3rd warp is a wire bundle (12), the 4th warp is a wire bundle (12), and the 5th warp is a wire
- the bundle 12, the 6th warp wire bundle 12, the 7th warp wire bundle 12, the 8th warp wire bundle 12, the 9th warp wire bundle 12, are composed of these ratios may be iteratively arranged.
- a ratio of the number of carbon fiber bundles 11 and wire bundles 12 disposed in the composite self-wrap shielding tube according to an embodiment of the present invention may be 1:n (here, n is a natural number of 8 or less). .
- the present invention is not limited thereto, and the ratio may vary depending on the number of strands of the carbon fiber yarn of the carbon fiber bundle.
- the ratio of the carbon fiber bundle to the number of the wire bundles is 1:n (where n is a natural number less than or equal to 32), and the carbon fiber bundle is When composed of 6k carbon fiber yarns, the ratio of the number of carbon fiber bundles to which the wire bundles are arranged is 1:n (where n is a natural number less than or equal to 16), and the carbon fiber bundle is composed of 12k carbon fiber yarns.
- the ratio of the number of carbon fiber bundles and the number of wire bundles disposed may be 1:n (where n is a natural number less than or equal to 8).
- the total area of the wire bundle may be 1 to 32 times, 1 to 16 times, and 1 to 8 times, respectively, the total area of the carbon fiber bundle.
- FIG. 6 is a graph showing the electromagnetic wave shielding test results of the composite material self-wrap shielding tube according to an embodiment of the present invention.
- FIG. 6 an electromagnetic wave shielding test test result of a composite self-wrap shielding tube composed of a braided member configured by alternating one carbon fiber bundle 11 and five wire bundles 12 is shown.
- the shielding ratio (SE) additionally considering the safety factor at 40 dB, which is the required shielding ratio of the general vehicle electric length under the 1 to 10 MHz signal condition, is a stable shielding ratio of 50 dB or more It can be confirmed that .
- the composite material self-wrap shielding tube 100 according to the present invention has a value of 50 dB or more even when the shielding ratio (dB) considers the safety factor under the signal conditions of 1 MHz to 10 MHz, and furthermore, the high-frequency signal condition of 100 It can be confirmed that even at MHz (100,000 KHz), it satisfies 40dB or more, which is the required shielding rate for general vehicle electric fields.
- FIG. 7 is a graph showing the electromagnetic wave shielding test results of the composite material self-wrap shielding tube according to an embodiment of the present invention.
- FIG. 7 an electromagnetic wave shielding test test result of a composite self-wrap shielding tube composed of a braided member configured by alternating one carbon fiber bundle 11 and eight wire bundles 12 is shown.
- the shielding ratio (SE) additionally considering the safety factor at 40 dB, which is the required shielding ratio of the general vehicle electric length under the 1 to 10 MHz signal condition, is a stable shielding ratio of 50 dB or more It can be confirmed that .
- the composite material self-wrap shielding tube 100 according to the present invention has a value of 50 dB or more even when the shielding ratio (dB) considers the safety factor under the signal conditions of 1 MHz to 10 MHz, and furthermore, the high-frequency signal condition of 100 It can be confirmed that even at MHz (100,000 KHz), it satisfies 40dB or more, which is the required shielding rate for general vehicle electric fields.
- FIG. 8 is a cross-sectional view illustrating a composite self-wrap shielding tube according to an embodiment of the present invention.
- 9 is a plan view illustrating a braided member constituting a self-wrap shielding tube according to an embodiment of the present invention.
- the braided member constituting the self-wrap shielding tube according to an embodiment of the present invention includes a first overlapping portion OA1, a second overlapping portion OA2, and a non-overlapping portion NA. may include
- an overlapping portion in which the ends of the braided member overlap in a circumferential direction of the wound braided member may be formed.
- the overlapping portion may include a first overlapping portion OA1 formed at a first end portion and a second overlapping portion OA2 formed at a second end portion opposite to the first end portion.
- a non-overlapping portion NA may be disposed between the first overlapping portion OA1 and the second overlapping portion OA2 .
- An area of the first overlapping portion OA1 and the second overlapping portion OA2 may be 1/8 to 1/3 of an area of the braided member in the second direction, respectively. 8 , an area of the first overlapping portion OA1 and the second overlapping portion OA2 may each be 1/3 of an area in the second direction.
- FIG. 10 is a plan view illustrating a braided member constituting a self-wrap shielding tube according to an embodiment of the present invention.
- the braided member constituting the self-wrap shielding tube may include an overlapping portion and a non-overlapping portion.
- the ratio of the number of the carbon fiber bundles and the wire bundles may be different in the overlapping portion and the non-overlapping portion.
- a ratio of the number of the carbon fiber bundles and the wire bundles in the non-overlapping part is 1:n (where n is a natural number less than or equal to 8), and the carbon fiber bundles and the wire bundles in the non-overlapping part are 1:n
- the part and the second overlapping part may be arranged so that the carbon fiber bundle and the wire bundle are repeated m/2 times in a ratio of (n+2):n.
- the ratio of the number of the carbon fiber bundles 11 and the wire bundles 12 in the non-overlapping portion NA is 1:5, and twice at a ratio of 1:5.
- the ratio of the number of carbon fiber bundles 11 and the wire bundle 12 arranged in the first overlapping portion OA1 and the second overlapping portion OA2 is 7:5, and the first The overlapping portion OA1 and the second overlapping portion OA2 may be disposed by repeating the carbon fiber bundle 11 and the wire bundle 12 once at a ratio of 7:5.
- the total area of the wire bundle in the first overlapping portion and the second overlapping portion may be 1/3 to 4/5 of the total area of the carbon fiber bundle.
- the number of wire bundles 12 disposed in the overlapping portions OA1 and OA2 may be equal to the number of wire bundles 12 disposed in the non-overlapping portions NA. Therefore, good electromagnetic wave shielding performance can be secured and weight can be minimized.
- FIG. 11 is a plan view illustrating a braided member constituting a self-wrap shielding tube according to an embodiment of the present invention.
- the braided member constituting the self-wrap shielding tube may include an overlapping portion and a non-overlapping portion.
- the ratio of the number of the carbon fiber bundles and the wire bundles may be different in the overlapping portion and the non-overlapping portion.
- the ratio of the number of the carbon fiber bundles 11 and the wire bundles 12 in the non-overlapping portion NA is 1:n (where n is a natural number less than or equal to 8), and the first overlapping portion ( A ratio of the number of the carbon fiber bundles 11 of OA1 and the number of the wire bundles 12 arranged is 1:n (where n is a natural number less than or equal to 8), and the carbon of the second overlapping portion OA2 is A ratio of the number of fiber bundles 11 and the number of wire bundles 12 disposed may be n:1 (here, n is a natural number less than or equal to 8).
- the ratio of the number of the carbon fiber bundles 11 and the wire bundles 12 in the non-overlapping portion NA is 1:5, and twice at a ratio of 1:5.
- the ratio of the number of the carbon fiber bundle 11 and the wire bundle 12 disposed in the first overlapping portion OA1 is 1:5, and repeated twice at a ratio of 1:5
- the ratio of the number of the carbon fiber bundles 11 and the wire bundles 12 in the second overlapping portion OA2 is 5:1, and is repeated twice at a ratio of 5:1.
- the ratio of the number of the carbon fiber bundles 11 and the wire bundle 12 in the first overlapping portion OA1 and the non-overlapping portion NA is the same, and the second overlapping portion OA2
- the ratio of the number of the carbon fiber bundles 11 and the wire bundles 12 of which is arranged may be formed to have a high ratio of carbon fibers.
- the carbon fiber bundle 11 disposed on the second overlapping portion OA2 may be replaced with a non-conductive material.
- a multi-filament material formed of aramid or polyester may be used instead of the carbon fiber bundle 11 .
- the present invention is not limited thereto, and the second overlapping portion OA2 is not limited thereto. may be formed with a smaller area than the first overlapping portion OA1.
- a ratio of the number of the carbon fiber bundles 11 and the wire bundles 12 disposed in the first overlapping portion OA1 is 1:5, and the ratio is repeated twice at a ratio of 1:5.
- the ratio of the number of the carbon fiber bundles 11 and the wire bundles 12 disposed in the second overlapping portion OA2 is once disposed at a ratio of 5:1, and at a ratio of 4:1 or less. Can be deployed once.
- the first overlapping portion OA1 and the non-overlapping portion NA may have an appropriate number of wire bundles disposed therein to secure good electromagnetic wave shielding performance, and the second overlapping portion OA2 may overlap As a part disposed outside the city, the number of carbon fiber bundles is greater than the number of wire bundles, so that the workability of cable shielding work can be improved and the weight can be reduced. Also, in another embodiment, a non-conductive material may be used instead of a carbon fiber bundle to reduce manufacturing cost.
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Abstract
Description
Claims (18)
- 제1 방향으로 연장되어 배치되는 복수 개의 탄소 섬유 번들;상기 탄소 섬유 번들과 평행한 상기 제1 방향으로 연장되어 번갈아 배치되며, 금속 와이어로 구성되는 복수 개의 와이어 번들; 및상기 제1 방향과 수직한 제2 방향으로 연장되어 배치되는 복수 개의 위사를 포함하고,상기 탄소 섬유 번들, 상기 와이어 번들 및 상기 위사를 편조하여 구성되는 편조부재를 원통형으로 감아 형성되는 복합소재 셀프랩 차폐 튜브.
- 제1항에 있어서, 상기 탄소 섬유 번들과 상기 와이어 번들이 배치되는 개수의 비는 1:n(여기서, n은 8이하의 자연수)인 것을 특징으로 하는 복합소재 셀프랩 차폐 튜브.
- 제1항에 있어서, 상기 와이어 번들의 총 면적은 상기 탄소 섬유 번들의 총 면적의 1배 내지 8배인 것을 특징으로 하는 복합소재 셀프랩 차폐 튜브.
- 제1항에 있어서, 상기 탄소 섬유 번들은 3k 가닥, 6k 가닥 또는 12k 가닥의 탄소 섬유사로 구성되는 것을 특징으로 하는 복합소재 셀프랩 차폐 튜브.
- 제4항에 있어서, 상기 탄소 섬유 번들을 구성하는 탄소 섬유사는 폴리 아미드 코팅되는 것을 특징으로 하는 복합소재 셀프랩 차폐 튜브.
- 제1항에 있어서, 상기 와이어 번들을 구성하는 금속 와이어는 CCA(Copper Clad Aluminum) 재질인 것을 특징으로 하는 복합소재 셀프랩 차폐 튜브.
- 제6항에 있어서, 상기 와이어 번들을 구성하는 금속 와이어는 알루미늄((Al)에 규소(Si), 철(Fe), 구리(Cu), 망간(Mn), 마그네슘(Mg), 크롬(Cr) 및 아연(Zn)이 혼합된 재질로 형성되는 것을 특징으로 하는 복합소재 셀프랩 차폐 튜브.
- 제1항에 있어서, 상기 복합소재 셀프랩 차폐 튜브는 100 MHz의 신호 조건에서 차폐율(dB)이 40dB 이상의 값을 갖는 것을 특징으로 하는 복합소재 셀프랩 차폐 튜브.
- 제1항에 있어서, 상기 탄소 섬유 번들과 상기 와이어 번들이 배치되는 개수의 비는 1:n(여기서, n은 32이하의 자연수)이고,상기 탄소 섬유 번들은 3k 가닥의 탄소 섬유사로 구성되는 것을 특징으로 하는 복합소재 셀프랩 차폐 튜브.
- 제1항에 있어서, 상기 탄소 섬유 번들과 상기 와이어 번들이 배치되는 개수의 비는 1:n(여기서, n은 16이하의 자연수)이고,상기 탄소 섬유 번들은 6k 가닥의 탄소 섬유사로 구성되는 것을 특징으로 하는 복합소재 셀프랩 차폐 튜브.
- 제1항에 있어서, 상기 탄소 섬유 번들과 상기 와이어 번들이 배치되는 개수의 비는 1:n(여기서, n은 8이하의 자연수)이고,상기 탄소 섬유 번들은 12k 가닥의 탄소 섬유사로 구성되는 것을 특징으로 하는 복합소재 셀프랩 차폐 튜브.
- 제1항에 있어서, 상기 편조부재가 원통형으로 감겼을 때, 원통형으로 감긴 편조부재의 원주 방향으로 상기 편조부재의 단부가 중첩되는 중첩부가 형성되는 것을 특징으로 하는 복합소재 셀프랩 차폐 튜브.
- 제12항에 있어서, 상기 중첩부는,제1 단부에 형성되는 제1 중첩부; 및상기 제1 단부의 반대편인 제2 단부에 형성되는 제2 중첩부를 포함하는 것을 특징으로 하는 복합소재 셀프랩 차폐 튜브.
- 제13항에 있어서, 상기 제1 중첩부 및 상기 제2 중첩부의 면적은 각각 상기 편조부재의 상기 제2 방향의 면적의 1/8 내지 1/3인 것을 특징으로 하는 복합소재 셀프랩 차폐 튜브.
- 제13항에 있어서, 상기 제1 중첩부 및 상기 제2 중첩부에서 상기 와이어 번들의 총 면적은 상기 탄소 섬유 번들의 총 면적의 1/3 내지 4/5인 것을 특징으로 하는 복합소재 셀프랩 차폐 튜브.
- 제13항에 있어서, 상기 편조부재는 상기 제1 중첩부 및 상기 제2 중첩부 사이에 배치되는 비 중첩부를 포함하고,상기 비 중첩부의 상기 탄소 섬유 번들과 상기 와이어 번들이 배치되는 개수의 비는 1:n(여기서, n은 8이하의 자연수)이고,상기 비 중첩부의 상기 탄소 섬유 번들과 상기 와이어 번들이 1:n의 비율로 m회 반복되어 배치되는 경우,상기 제1 중첩부 및 상기 제2 중첩부의 상기 탄소 섬유 번들과 상기 와이어 번들이 배치되는 개수의 비는 (n+2):n이며, 상기 제1 중첩부 및 상기 제2 중첩부는 상기 탄소 섬유 번들과 상기 와이어 번들이 (n+2):n의 비율로 m/2회 반복되어 배치되는 것을 특징으로 하는 복합소재 셀프랩 차폐 튜브.
- 제13항에 있어서, 상기 편조부재는 상기 제1 중첩부 및 상기 제2 중첩부 사이에 배치되는 비 중첩부를 포함하고,상기 비 중첩부의 상기 탄소 섬유 번들과 상기 와이어 번들이 배치되는 개수의 비는 1:n(여기서, n은 8이하의 자연수)이고,상기 제1 중첩부의 상기 탄소 섬유 번들과 상기 와이어 번들이 배치되는 개수의 비는 1:n(여기서, n은 8이하의 자연수)이고,상기 제2 중첩부의 상기 탄소 섬유 번들과 상기 와이어 번들이 배치되는 개수의 비는 n:1(여기서, n은 8이하의 자연수)인 것을 특징으로 하는 복합소재 셀프랩 차폐 튜브.
- 제 1 항 내지 제 17 항 중 어느 한 항에 따른 복합소재 셀프랩 차폐 튜브에 의해 감싸여진 케이블.
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| US18/286,515 US20250185226A1 (en) | 2021-05-04 | 2022-04-25 | Composite material self-wrap shielding tube |
| JP2023559855A JP7679489B2 (ja) | 2021-05-04 | 2022-04-25 | 複合素材セルフラップ遮蔽チューブ |
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| KR1020220049869A KR20220150826A (ko) | 2021-05-04 | 2022-04-22 | 복합소재 셀프랩 차폐 튜브 |
| KR10-2022-0049869 | 2022-04-22 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2011179162A (ja) * | 2011-05-27 | 2011-09-15 | Matsuyama Keori Kk | 電磁波シールド織物、電磁波シールドシート、電磁波シールド材及び電磁波シールドケーシング |
| KR20150047558A (ko) * | 2012-08-24 | 2015-05-04 | 세이렌가부시끼가이샤 | 자계 쉴드성 전자파 쉴드재 |
| KR20170021783A (ko) * | 2014-06-16 | 2017-02-28 | 트레세 엥뒤스트리 | 전자기 차폐용 직물 |
| KR20200028122A (ko) * | 2018-09-06 | 2020-03-16 | 엘에스전선 주식회사 | 편조부재 및 열수축 튜브 |
| KR20200063040A (ko) * | 2018-11-27 | 2020-06-04 | 엘에스전선 주식회사 | 탄소 섬유 편조부재 및 탄소 섬유 열수축 튜브 |
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| US4684762A (en) * | 1985-05-17 | 1987-08-04 | Raychem Corp. | Shielding fabric |
| JP4793783B2 (ja) | 2005-12-20 | 2011-10-12 | 松山毛織株式会社 | 電磁波吸収糸、電磁波吸収織物、電磁波シールド織物、電磁波シールドシート、電磁波シールド材及び電磁波シールドケーシング |
| US9913415B2 (en) | 2013-03-13 | 2018-03-06 | Federal-Mogul Powertrain Llc | EMI shielding textile fabric, wrappable sleeve constructed therefrom and method of construction thereof |
| US9277684B2 (en) * | 2013-03-13 | 2016-03-01 | Federal-Mogul Powertrain, Inc. | Self-wrapping EMI shielding textile sleeve and method of construction thereof |
| JP6592272B2 (ja) | 2015-04-20 | 2019-10-16 | 株式会社クラベ | シールドスリーブ |
| WO2020111518A1 (ko) | 2018-11-27 | 2020-06-04 | 엘에스전선 주식회사 | 탄소 섬유 편조부재 및 탄소 섬유 열수축 튜브 |
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- 2022-04-25 WO PCT/KR2022/005854 patent/WO2022234992A1/ko not_active Ceased
- 2022-04-25 US US18/286,515 patent/US20250185226A1/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011179162A (ja) * | 2011-05-27 | 2011-09-15 | Matsuyama Keori Kk | 電磁波シールド織物、電磁波シールドシート、電磁波シールド材及び電磁波シールドケーシング |
| KR20150047558A (ko) * | 2012-08-24 | 2015-05-04 | 세이렌가부시끼가이샤 | 자계 쉴드성 전자파 쉴드재 |
| KR20170021783A (ko) * | 2014-06-16 | 2017-02-28 | 트레세 엥뒤스트리 | 전자기 차폐용 직물 |
| KR20200028122A (ko) * | 2018-09-06 | 2020-03-16 | 엘에스전선 주식회사 | 편조부재 및 열수축 튜브 |
| KR20200063040A (ko) * | 2018-11-27 | 2020-06-04 | 엘에스전선 주식회사 | 탄소 섬유 편조부재 및 탄소 섬유 열수축 튜브 |
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| JP2024517063A (ja) | 2024-04-19 |
| US20250185226A1 (en) | 2025-06-05 |
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