Tensile wear-resistant anti-interference light cable

Abstract

The utility model relates to a tensile wear-resistant anti-interference light cable, comprising a plurality of conductors which are twisted into a strand of wire core; the aramid yarn is wound on the surfaces of the conductors and passes through the middle of the plurality of conductors and between the adjacent conductors; the insulating layer is coated on the wire core wound with the aramid yarn; the composite shielding layer is wound on the single wire core or the plurality of wire cores coated with the insulating layer, is of a sandwich structure and comprises an inner-layer copper-plastic composite belt, an outer-layer copper-plastic composite belt and a braid layer located between the inner-layer copper-plastic composite belt and the outer-layer copper-plastic composite belt; and the sheath is coated on the composite shielding layer. Structures of two sides of the braid layer are guaranteed to be stable, so that the overall structure of the cable is guaranteed to be stable.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable field especially relates to a kind of anti-pulling wear-resistant anti-interference light cable. BACKGROUND

[0002] As China utility model CN 212229264 U, a kind of anti-static armored optical cable is disclosed, including optical fiber, metal spiral steel pipe, aramid yarn, inner braided layer, outer sheath and anti-static layer, the metal spiral steel pipe axial uniformly covers the optical fiber, the aramid yarn uniformly covers the metal spiral steel pipe, the inner braided layer axial uniformly covers the aramid yarn, the outer sheath axial uniformly covers the inner braided layer, the anti-static layer axial uniformly covers the outer sheath, the anti-static layer inside is equipped with hollow cavity, the hollow cavity is wound with conductive layer, the conductive layer one end is communicated with the surface of anti-static layer, the other end is communicated with ground, the conductivity of the conductive layer is greater than anti-static layer. Its outer sheath is deformed greatly due to thermal expansion and contraction in daily use, and the braided layer is fixed with the aramid yarn and the braided layer on both sides due to its rough surface, when temperature stress is generated between outer sheath and braided layer, the deformation effect of non-metallic material braided layer and aramid yarn is poor, and non-metallic braided layer is easy to slip between outer sheath due to too large deformation gap, so that the overall structure of cable is easily damaged. Stable, in addition, bending, weight, stretching, extrusion frequently appear in daily use, and when moving frequently, the inner braided shielding layer is injured to insulating layer or braided layer gap is enlarged, to cause insulation short circuit or electromagnetic interference increases, how to guarantee the overall structure of cable reliable and stable, become the problem to be solved urgently. SUMMARY

[0003] The utility model solves the technical problem to provide a kind of anti-pulling wear-resistant anti-interference light cable, it is favorable to guarantee the structure stability of braided layer both sides, to guarantee the overall structure of cable stable.

[0004] To solve the above problem and adopt a kind of anti-pulling wear-resistant anti-interference light cable, it includes:

[0005] Conductor, multiple strands are twisted into a strand core;

[0006] Aramid yarn, it is wound on the surface of conductor, and winding is passed through the middle of multiple conductors and between adjacent conductors;

[0007] Insulating layer, covered on the strand core after winding aramid yarn;

[0008] Composite shielding layer, it is wrapped on the single strand core or multiple strand cores of covering insulating layer, it is for sandwich structure, it includes inner layer copper plastic composite tape, outer layer copper plastic composite tape and braided layer between the two;

[0009] Sheath, it is covered on composite shielding layer.

[0010] With the structure, the composite shielding layer adopts the sandwich structure, which is beneficial to avoid the direct contact of the braiding layer with the sheath or the insulation layer, the inner layer copper-plastic composite tape and the outer layer copper-plastic composite tape have good extension ability and stronger following deformation ability, the braiding layer is clamped in the inner layer copper-plastic composite tape and the outer layer copper-plastic composite tape, and follows the movement when the inner layer copper-plastic composite tape and the outer layer copper-plastic composite tape are extended, so that the direct contact with the sheath or the insulation layer is avoided, and the fixed relationship between the outer layer copper-plastic composite tape and the sheath and the fixed relationship between the inner layer copper-plastic composite tape and the insulation layer are not damaged, and the copper-plastic composite tape is not easily damaged by the braiding layer, so that the stability and reliability of the overall structure of the cable are realized.

[0011] As a further improvement of the utility model, the conductor is a nickel-plated copper alloy.

[0012] As a further improvement of the utility model, the braiding layer is a silver-plated carbon fiber composite wire braiding layer.

[0013] As a further improvement of the utility model, the sheath is a chloroprene rubber sheath.

[0014] As a further improvement of the utility model, the inner layer copper-plastic composite tape and the braiding layer and the outer layer copper-plastic composite tape and the braiding layer are provided with glass fiber mesh cloth and hot melt adhesive fixing.

[0015] With the structure, the glass fiber mesh cloth is beneficial to form the bonding framework of the hot melt adhesive, the glass fiber mesh cloth resists the shearing force, the hot melt adhesive guarantees the stable connection of the sandwich structure, and the hot melt adhesive also has certain deformation ability and can allow displacement difference on both sides.

[0016] The utility model discloses anti-tension, wear-resistant, light in weight, small in size, anti-high-low frequency electromagnetic interference, greatly improves the stability and reliability of product when frequently bending, heavy, stretching, extruding or thermal expansion and cold contraction, mainly suitable for frequently moving bending, vertical laying load-bearing and the occasion that the requirement to anti-electromagnetic interference is more strict. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is structural schematic diagram of example.

[0018] Fig. 2 It is schematic diagram of braiding layer sandwich structure.

[0019] The drawing figure shows that: 1, aramid yarn, 2, conductor, 3, insulation layer, 4, inner layer copper-plastic composite tape, 5, braiding layer, 6, outer layer copper-plastic composite tape, 7, sheath, 8, glass fiber mesh cloth, 9, hot melt adhesive. DETAILED DESCRIPTION

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Example 1

[0023] like Figs. 1-2 As shown, a tensile, abrasion-resistant, and interference-resistant lightweight cable includes:

[0024] Conductor 2, whose multiple strands are twisted together into a single wire core;

[0025] Aramid yarn 1 is wound around the surface of conductor 2 and passes through the middle of multiple conductors 2 and between adjacent conductors 2;

[0026] Insulation layer 3 is wrapped around the core wire after the aramid yarn 1 is wound around it;

[0027] The composite shielding layer is wrapped around a single or multiple wire cores covered with the insulation layer 3. It is a sandwich structure, which includes an inner copper-plastic composite tape 4, an outer copper-plastic composite tape 6, and a braided layer 5 located between the two.

[0028] Sheath 7, which covers the composite shielding layer.

[0029] With this structure, the composite shielding layer adopts a sandwich structure, which helps to avoid direct contact between the braided layer 5 and the sheath 7 or the insulation layer 3. The inner copper-plastic composite tape 4 and the outer copper-plastic composite tape 6 have good extensibility and stronger ability to deform with the overall structure. The braided layer 5 is sandwiched between the inner copper-plastic composite tape 4 and the outer copper-plastic composite tape 6. As the inner copper-plastic composite tape 4 and the outer copper-plastic composite tape 6 extend, it moves with them, avoiding direct contact with the sheath 7 or the insulation layer 3. It also does not damage the fixed relationship between the outer copper-plastic composite tape 6 and the sheath 7, or the fixed relationship between the inner copper-plastic composite tape 4 and the insulation layer 3, thereby achieving the stability and reliability of the overall cable structure.

[0030] In this embodiment, the conductor 2 is a nickel-plated copper alloy.

[0031] In this embodiment, the braided layer 5 is a silver-plated carbon fiber composite filament braided layer.

[0032] In this embodiment, the sheath 7 is a neoprene rubber sheath.

[0033] In this embodiment, fiberglass mesh 8 and hot melt adhesive 9 are used to fix the inner copper-plastic composite strip 4 and the braided layer 5, as well as the outer copper-plastic composite strip 6 and the braided layer 5.

[0034] The use of such a structure for the fiberglass mesh 8 facilitates the formation of the adhesive skeleton for the hot melt adhesive 9, which resists shear forces and ensures the stable connection of the sandwich structure.

[0035] In this embodiment, when conductor 2 is stranded, aramid yarn 1 is placed at the center of all stranded conductors and between conductors, and then polyurethane elastomer is extruded as an insulation layer 3.

[0036] The inner copper-plastic composite tape, the silver-plated carbon fiber composite wire, and the outer copper-plastic composite tape are wrapped sequentially around the insulation layer of a single-core cable or the cable core of a multi-core cable.

[0037] Neoprene rubber 7 is extruded onto the outside of the shielding layer as a protective sleeve.

[0038] This invention features tensile strength, wear resistance, light weight, small size, and resistance to high and low frequency electromagnetic interference, greatly improving the stability and reliability of the product under frequent bending, load, stretching, extrusion, or thermal expansion and contraction. It is mainly suitable for occasions with frequent moving and bending, vertical laying and load bearing, and strict requirements for electromagnetic interference resistance.

[0039] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, several equivalent substitutions or obvious modifications can be made without departing from the concept of the present invention, and all such modifications, with identical performance or use, should be considered within the protection scope of the present invention.

Claims

1. A lightweight cable with tensile strength, wear resistance, and interference prevention, characterized in that... include: Conductor (2), whose multiple strands are twisted together into a single wire core; Aramid yarn (1) is wound around the surface of conductor (2) and passes through the middle of multiple conductors (2) and between adjacent conductors (2); An insulating layer (3) is wrapped around the core of the wire after the aramid yarn (1) is wound. The composite shielding layer is wrapped around a single or multiple cores of the insulating layer (3). It is a sandwich structure, which includes an inner copper-plastic composite strip (4), an outer copper-plastic composite strip (6), and a braided layer (5) between the two. Sheath (7) covers the composite shielding layer.

2. The tensile-resistant, wear-resistant, and interference-resistant lightweight cable according to claim 1, characterized in that... The conductor (2) is a nickel-plated copper alloy.

3. The tensile-resistant, wear-resistant, and interference-resistant lightweight cable according to claim 1, characterized in that... The braided layer (5) is a silver-plated carbon fiber composite woven layer.

4. The tensile-resistant, wear-resistant, and interference-resistant lightweight cable according to claim 1, characterized in that... The sheath (7) is a neoprene rubber sheath.

5. The tensile-resistant, wear-resistant, and interference-resistant lightweight cable according to claim 1, characterized in that... The inner copper-plastic composite strip (4) and the braided layer (5), as well as the outer copper-plastic composite strip (6) and the braided layer (5), are fixed with fiberglass mesh (8) and hot melt adhesive (9), and the fiberglass mesh (8) is attached to the braided layer (5).

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