Multi-core anti-interference polyvinyl chloride sheath-free shielding wire

Abstract

The utility model relates to the technical field of communication wire equipment, in particular to a multi-core anti-interference polyvinyl chloride sheath-free shielding wire which comprises insulators, an inner protective layer, a tensile layer, a breathable layer, a composite shielding layer and a shell, wire cores are arranged in the multiple insulators, the tensile layer sleeves the multiple insulators, the breathable layer sleeves the outer side of the composite shielding layer, and the composite shielding layer sleeves the outer side of the inner protective layer. The inner protection layer is coaxially arranged on the outer side of the tensile layer, the breathable layer is coaxially arranged on the outer side of the inner protection layer, the composite shielding layer is coaxially arranged on the outer side of the breathable layer, and the outer surface of the composite shielding layer is sleeved with the shell; the anti-stretching layer is arranged outside the inner protection layer, friction force generated by sliding of the inner protection layer of the wire on the inner side of the anti-stretching layer is small so that the wire can be pulled easily, an outer skin insulation layer of the wire core cannot be damaged or broken easily, the metal foil paper and the braided copper net can double shield interference signals and conductor interference, the signal shielding capacity of the wire is enhanced, and the service life of the wire is prolonged. And the loss of transmission signals is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of communication wire equipment, and in particular to a multi-core anti-interference polyvinyl chloride sheathless shielded wire. Background Art

[0002] At present, electric wires are used to transmit telephone, telegraph, fax documents, TV and radio programs, data and other electrical signals. They are made up of one or more pairs of mutually insulated wires twisted together.

[0003] With reference to the Chinese patent application with publication number CN219891913U, a wear-resistant and anti-interference communication wire is disclosed, including a sheath, an outer shielding mesh is arranged inside the sheath, a plurality of holes are arranged inside the outer shielding mesh, an inner sleeve is arranged inside the outer shielding mesh, a plurality of insulators are arranged inside the inner sleeve, and copper wires are arranged inside the insulator. When in use, the outer shielding mesh and the inner wall of the sheath are bonded to each other, and aluminum foil is arranged inside the outer shielding mesh, and the aluminum foil and the inner wall of the outer shielding mesh are bonded to each other, which can reduce the interference of external signals and have a certain insulation. An inner shielding mesh is arranged inside the aluminum foil, and the inner shielding mesh is arranged on the inner sleeve, and the inner shielding mesh and the inner wall of the aluminum foil are bonded to each other, thereby further reducing the interference of external signals, improving the transmission efficiency of the electrical signal itself, and enhancing practicality;

[0004] However, in the prior art, when the wires are stretched, the inner sheath and the outer skin of the wire core have anti-tensile force, which produces friction, causing damage to the inner sheath and the outer skin of the wire core, affecting the use of the wires; for this reason, we designed a multi-core anti-interference polyvinyl chloride sheathless shielded wire. Utility Model Content

[0005] The multi-core anti-interference polyvinyl chloride unsheathed shielded wire provided in the embodiment of the present application can solve the technical problem that when the wire is stretched and arranged, the inner sheath and the outer skin of the wire core have anti-tensile force, thereby generating friction, causing the inner sheath of the wire core to be damaged and broken, thereby affecting the use of the wire.

[0006] The embodiment of the present application provides a multi-core anti-interference polyvinyl chloride unsheathed shielded wire comprising an insulator, an inner sheath, an anti-stretching layer, a breathable layer, a composite shielding layer and an outer shell, wherein a plurality of the insulators are provided with wire cores inside, the anti-stretching layer is sleeved on the outside of the plurality of the insulators, the inner sheath is coaxially arranged on the outside of the anti-stretching layer, a breathable layer is coaxially arranged on the outside of the inner sheath, the composite shielding layer is coaxially arranged on the outside of the breathable layer, and the outer shell is sleeved on the outer surface of the composite shielding layer;

[0007] By arranging an anti-stretching layer on the outside of the inner sheath, when the wire is stretched and arranged, since the anti-stretching layer is a mesh structure woven with anti-stretching ropes, the friction force generated by the inner sheath of the wire sliding on the inside of the anti-stretching layer is small, making the wire easy to pull, and the outer skin insulation layer of the wire core will not be easily damaged or broken.

[0008] The above technical solutions in the embodiments of the present application have at least the following technical effects:

[0009] In some embodiments, the composite shielding layer includes metal foil and a woven copper mesh, and the metal foil is wrapped around the outside of the woven copper mesh.

[0010] In some embodiments, the wire core is composed of a plurality of silver-plated copper wires, the outer shell is made of polyvinyl chloride material, and the insulator is made of polyvinyl chloride material.

[0011] In some embodiments, the anti-stretching layer is a mesh structure woven from anti-stretching ropes, and the anti-stretching ropes are made of polyurethane material.

[0012] In some embodiments, a resin outer skin is disposed on the outside of the aluminum foil, and the resin outer skin is bonded to the outside of the metal foil.

[0013] In some embodiments, a plurality of evenly distributed air holes are provided inside the air permeable layer.

[0014] In some embodiments, filling ropes are disposed at gaps between the plurality of insulators.

[0015] 1. The present application adds an anti-stretching layer between the composite shielding layer and the inner sheath, so that when the wire is stretched, the friction generated by the inner sheath sliding on the inner side of the anti-stretching layer is small, making it easy to pull the wire and will not easily damage or break the outer skin insulation layer of the wire core.

[0016] 2. The present application adds a breathable layer to enable the wire to have good heat dissipation under high-intensity use, thereby improving practicality. At the same time, a filling rope is provided in the gap of the insulator to improve the flame retardancy and insulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 A schematic structural diagram of a multi-core anti-interference polyvinyl chloride unsheathed shielded wire provided in an embodiment of the present application.

[0019] Figure 2 A schematic cross-sectional view of a multi-core anti-interference polyvinyl chloride unsheathed shielded wire provided in an embodiment of the present application.

[0020] Among them, the figure marks in the figure are: 1, insulator; 2, wire core; 3, tensile strength layer; 4, inner protective layer; 5, breathable layer; 6, woven copper mesh; 7, metal foil; 8, outer shell; 9, filling rope; 10, air hole. DETAILED DESCRIPTION

[0021] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0023] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0024] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0026] In this application, "and / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships; for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0027] It should be noted that, in the present application, words such as "in the present embodiment", "exemplarily", "for example", etc. are used to indicate examples, illustrations or explanations. Any embodiment or design described in the present application as "in the present embodiment", "exemplarily", "for example" should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "in the present embodiment", "exemplarily", "for example", etc. is intended to present related concepts in a concrete way, meaning that specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the above words in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0028] Wires are used to transmit telephone, telegraph, fax, TV and radio programs, data and other electrical signals, and are also widely used in other fields. They are made up of one or more insulated wires twisted together.

[0029] In the related art, when the wires are stretched, the shielding layer and the outer skin of the wire core have tensile resistance, which generates friction, causing damage to the inner sheath and outer skin of the wire core, thereby reducing the conductivity and safety and affecting the normal use of the wires.

[0030] Based on this, in order to improve the problem in the related art that the inner sheath and the outer skin of the wire core have anti-tensile force during the elongated arrangement of the wire, thereby generating friction and causing damage to the inner sheath and the outer skin of the wire core, the embodiment of the present application provides the following solution.

[0031] See also Figure 1 and Figure 2 A multi-core anti-interference polyvinyl chloride unsheathed shielded wire comprises: an insulator 1, an inner sheath 4, an anti-stretching layer 3, a breathable layer 5, a composite shielding layer and an outer shell 8. A plurality of the insulators 1 are provided with wire cores 2 inside, the anti-stretching layer 3 is sleeved on the outside of the plurality of the insulators 1, the inner sheath 4 is coaxially arranged on the outside of the anti-stretching layer 3, a breathable layer 5 is coaxially arranged on the outside of the inner sheath 4, the composite shielding layer is coaxially arranged on the outside of the breathable layer 5, and the outer shell 8 is sleeved on the outer surface of the composite shielding layer.

[0032] The effect of this arrangement is that by sleeved with an anti-stretching layer 3 on the outside of multiple insulators 1, the tensile strength of the inner sheath 4 and the outer skin of the wire core is reduced, so that the inner sheath 4 and the outer skin of the wire core 2 will not be easily damaged during the wire arrangement process, thereby not affecting the normal use of the wire.

[0033] See also Figure 1 and Figure 2 The composite shielding layer includes a metal foil 7 and a woven copper mesh 6 , and the metal foil 7 is wrapped around the outside of the woven copper mesh 6 .

[0034] The effect of such a setting is that when the wires are connected and used, the metal foil 7 and the braided copper mesh 6 will double shield the interference signal and the conductor interference, thereby enhancing the ability of the wires to shield signals and reducing the loss of the transmission signal.

[0035] See also Figure 1 and Figure 2 The wire core 2 is composed of multiple silver-plated copper wires, the shell 8 is made of polyvinyl chloride material, the insulator 1 is made of polyvinyl chloride material, the anti-tensile layer 3 is a mesh structure woven by anti-tensile ropes, and the anti-tensile ropes are made of polyurethane material.

[0036] The effect of this arrangement is that the polyvinyl chloride material has good insulation and conductivity, which enables the wires to have good conductivity and insulation when the wires are connected. The polyurethane material has the characteristics of high strength, high toughness and wear resistance, which enables the wires to maintain a normal shape when arranged and stretched.

[0037] See also Figure 1 and Figure 2 Filling ropes 9 are provided at the gaps between the plurality of insulators 1, and the air permeable layer 5 is provided with a plurality of evenly distributed air permeable holes 10.

[0038] The effect of such arrangement is that the air permeable layer 5 enables the electric wire to have good heat dissipation when it is used intensively, thereby improving practicality. Meanwhile, the filling rope 9 is arranged at the gap of the insulator 1, thereby improving flame retardancy and insulation.

[0039] From the above, we can see that the working principle of this application is as follows:

[0040] When the wire is stretched and arranged, since the anti-stretching layer 3 is a mesh structure woven with anti-stretching ropes, the friction force generated by the inner sheath 4 of the wire sliding on the inner side of the anti-stretching layer 3 is small, making the wire easy to pull, and the outer skin insulation layer of the wire core will not be easily damaged or broken;

[0041] When the wires are connected and used, the metal foil 7 and the braided copper mesh 6 will double shield the interference signals and conductor interference, enhance the ability of the wires to shield signals, and reduce the loss of transmitted signals. The polyvinyl chloride material has good insulation and conductivity. When the wires are connected, the wires have good conductivity and insulation. The polyurethane material has the characteristics of high strength, high toughness and wear resistance, so that the wires maintain a normal shape when arranged and stretched. When the wires are used at high intensity, the breathable layer 5 makes the wires have good heat dissipation and improves practicality. At the same time, a filling rope 9 is arranged in the gap of the insulator 1 to improve the flame retardancy and insulation.

[0042] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A multi-core anti-interference polyvinyl chloride sheathless shielded wire, characterized in that: The invention comprises a plurality of insulators (1), an inner protective layer (4), an anti-stretching layer (3), a breathable layer (5), a composite shielding layer and an outer shell (8); a wire core (2) is arranged inside the plurality of insulators (1); the anti-stretching layer (3) is sleeved on the outside of the plurality of insulators (1); the inner protective layer (4) is coaxially arranged on the outside of the anti-stretching layer (3); a breathable layer (5) is coaxially arranged on the outside of the inner protective layer (4); the composite shielding layer is coaxially arranged on the outside of the breathable layer (5); and the outer shell (8) is sleeved on the outer surface of the composite shielding layer.

2. A multi-core anti-interference polyvinyl chloride non-sheathed shielded electric wire according to claim 1, characterized in that: The composite shielding layer comprises a metal foil (7) and a braided copper mesh (6); the metal foil (7) is wrapped around the outside of the braided copper mesh (6), and the braided copper mesh (6) is wrapped inside the outer shell (8).

3. The multi-core anti-interference polyvinyl chloride non-sheathed shielded electric wire according to claim 1, characterized in that: The electric wire core (2) is composed of a plurality of silver-plated copper wires, the outer shell (8) is made of polyvinyl chloride material, and the insulator (1) is made of polyvinyl chloride material.

4. The multi-core anti-interference polyvinyl chloride sheathless shielded electric wire according to claim 1, characterized in that: The anti-stretching layer (3) is a mesh structure woven from anti-stretching ropes, and the anti-stretching ropes are made of polyurethane material.

5. The multi-core anti-interference polyvinyl chloride non-sheathed shielded electric wire according to claim 1, characterized in that: Filling ropes (9) are arranged at gaps between the plurality of insulators (1).

6. The multi-core anti-interference polyvinyl chloride non-sheathed shielded electric wire according to claim 1, characterized in that: The air permeable layer (5) is provided with a plurality of evenly distributed air permeable holes (10).

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