Water-blocking copper core bunched wire

Abstract

The utility model discloses a water-blocking copper core cluster lead, which comprises a plurality of leads connected and combined by connecting ribs, each lead sequentially comprises a plurality of copper conductors, a water-blocking filling layer, a wrapping layer, a water-blocking layer and a sheath layer from inside to outside, and an insulating layer and a shielding layer are sequentially arranged on the outer side of each copper conductor from inside to outside. Water-blocking glue is arranged in gaps among the copper conductors; a plurality of reinforcing members are embedded in the sheath layer, and the reinforcing members are axially embedded in the sheath layer in an annular array. The water-blocking copper core bunched lead is provided with a multi-layer water-blocking structure, so that water is not easy to permeate, diffuse and contact with the conductor, and the sheath is not easy to damage.

Description

Technical Field

[0001] This utility model relates to the field of bundled conductors, and in particular to a water-blocking copper core bundled conductor. Background Technology

[0002] Bundled cables are a new type of cable that combines multiple insulated cables together using insulating material. They come in parallel (flat) and square configurations and are compact cable bundles designed for overhead operation. Conventional bundled cables have relatively simple water-blocking methods. In humid environments, water can easily penetrate and spread if the cable sheath is damaged, leading to decreased cable performance or malfunction. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides a water-blocking copper core bundled conductor with a multi-layered water-blocking structure, which prevents water from easily penetrating and spreading to the contact conductor, and the sheath is less prone to damage.

[0004] The technical solution of this utility model is as follows:

[0005] A water-blocking copper core bundled wire includes multiple wires connected by connecting ribs. Each wire, from the inside out, includes multiple copper conductors, a water-blocking filling layer, a wrapping layer, a water-blocking layer, and a sheath layer. Each copper conductor has an insulation layer and a shielding layer arranged from the inside out on its outer side. Water-blocking adhesive is provided in the gaps between the copper conductors. Several reinforcing members are embedded in the sheath layer, and the reinforcing members are axially embedded in the sheath layer in a ring array.

[0006] In a further technical solution, the water-blocking layer is an aluminum-plastic composite water-blocking tape, a polyethylene water-blocking tape, or a polyamide water-blocking tape.

[0007] In a further technical solution, the water-blocking filling layer is water-blocking yarn.

[0008] In a further technical solution, the reinforcing member is a steel core or aramid fiber.

[0009] In a further technical solution, the thickness of the connecting rib gradually increases on both sides along the direction close to the sheath layer.

[0010] In a further technical solution, the shielding layer is a copper wire braided layer.

[0011] The beneficial effects of this utility model are:

[0012] 1. A water-blocking layer, a water-blocking filling layer, and a water-blocking adhesive are respectively set in the bundled conductors to form a three-layer water-blocking structure. The water-blocking layer is a radial water-blocking structure to prevent external water from seeping in laterally. The water-blocking filling layer can prevent water that has penetrated the water-blocking layer from spreading further. The water-blocking adhesive serves as a third layer of protection to prevent water from entering along the gaps between conductors. The three-layer water-blocking effect is good and helps to slow down the rate of water penetration and diffusion. The sheath layer is reinforced with strong tensile strength and is not prone to excessive bending and sagging that could lead to cracking and damage.

[0013] 2. The connection between the connecting rib and the sheath layer is not prone to breakage when bending. Attached Figure Description

[0014] Figure 1 This is a cross-sectional schematic diagram of a water-blocking copper core bundled conductor according to an embodiment of the present invention;

[0015] Figure 2 This is a cross-sectional schematic diagram of the conductor described in an embodiment of this utility model.

[0016] Explanation of reference numerals in the attached figures:

[0017] 10. Wire; 11. Copper conductor; 12. Insulation layer; 13. Shielding layer; 14. Water-blocking filling layer; 15. Wrapping layer; 16. Water-blocking layer; 17. Sheath layer; 18. Reinforcing member. Detailed Implementation

[0018] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0019] Example:

[0020] like Figures 1-2 As shown, a water-blocking copper core bundled conductor includes four conductors 10 connected by connecting ribs. The conductors 10, from the inside out, include multiple copper conductors 11, a water-blocking filling layer 14, a wrapping layer 15, a water-blocking layer 16, and a sheath layer 17. An insulation layer 12 and a shielding layer 13 are provided on the outer side of each copper conductor 11 from the inside out. Water-blocking adhesive is provided in the gaps between the copper conductors 11. Several reinforcing members 18 are embedded in the sheath layer 17. The reinforcing members 18 are arranged in a ring array and axially embedded in the sheath layer 17. Optionally, the water-blocking layer 16 can be any one of aluminum-plastic composite water-blocking tape, polyethylene water-blocking tape, or polyamide water-blocking tape. The water-blocking filling layer 14 is made of water-blocking yarn and is filled between the multiple copper conductors 11.

[0021] The working principle of the above technical solution is as follows:

[0022] A water-blocking layer 16, a water-blocking filling layer 14, and a water-blocking adhesive are respectively provided in the bundled conductor 10 to form a three-layer water-blocking structure. The water-blocking layer 16 is a radial water-blocking structure that prevents external water from seeping in laterally. The water-blocking filling layer 14 is a longitudinal water-blocking structure. The water-blocking yarn expands in volume when it comes into contact with water, blocking the gaps between conductors and preventing water from spreading axially. The water-blocking adhesive serves as a third layer of protection to prevent water from entering along the gaps between conductors. The three-layer water-blocking effect is good and helps to slow down the rate of water penetration and diffusion. The sheath layer 17 is embedded with a reinforcing member 18. The reinforcing member 18 is made of steel core or aramid fiber, which has strong tensile strength and is not prone to excessive bending and sagging that could lead to cracking and damage.

[0023] In another embodiment, such as Figure 1 As shown, the thickness of the connecting rib gradually increases on both sides along the direction close to the sheath layer 17.

[0024] When the bundled conductors 10 are laid out, they may be squeezed, and the connecting ribs between the conductors 10 may be bent. The arrangement in this embodiment makes it less likely for the connecting ribs to break at the connection sheath layer 17 when bent.

[0025] In another embodiment, the shielding layer 13 is a copper wire braided layer. It has high coverage, good flexibility, and is suitable for dynamic bending scenarios.

[0026] The above embodiments merely illustrate specific implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A water-blocking copper core bundled conductor, comprising multiple conductors connected by connecting ribs, characterized in that, The conductor comprises, from the inside out, multiple copper conductors, a water-blocking filling layer, a wrapping layer, a water-blocking layer, and a sheath layer. An insulation layer and a shielding layer are provided on the outer side of each copper conductor from the inside out. Water-blocking adhesive is provided in the gaps between the copper conductors. Several reinforcing members are embedded in the sheath layer, and the reinforcing members are axially embedded in the sheath layer in a ring array.

2. The water-blocking copper core bundled conductor according to claim 1, characterized in that, The water-blocking layer is an aluminum-plastic composite water-blocking tape, a polyethylene water-blocking tape, or a polyamide water-blocking tape.

3. The water-blocking copper core bundled conductor according to claim 1, characterized in that, The water-blocking filling layer is water-blocking yarn.

4. The water-blocking copper core bundled conductor according to claim 1, characterized in that, The reinforcing element is a steel core or aramid fiber.

5. A water-blocking copper core bundled conductor according to claim 1, characterized in that, The thickness of the connecting rib gradually increases on both sides along the direction close to the sheath layer.

6. The water-blocking copper core bundled conductor according to claim 1, characterized in that, The shielding layer is a copper wire braided layer.

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