CN214253969U

CN214253969U - High-shielding efficient compact insulated cable

Info

Publication number: CN214253969U
Application number: CN202120493766.3U
Authority: CN
Inventors: 黄美华
Original assignee: CHONGQING KEBAO CABLE CO LTD
Current assignee: CHONGQING KEBAO CABLE CO LTD
Priority date: 2021-03-06
Filing date: 2021-03-06
Publication date: 2021-09-21
Anticipated expiration: 2031-03-06

Abstract

The utility model discloses a high-shielding high-efficiency compact insulated cable, which relates to the cable field, and the technical proposal of the utility model comprises a cable core, an insulating shielding layer, a waterproof layer and an outer protective layer; the cable core comprises a conductor, an insulating layer, a copper strip shielding layer and an inner protection layer; the cable comprises three cable cores, wherein the three cable cores are twisted, and triangular filling blocks are arranged in external gaps among the cable cores along the length direction of the cable. The triangular filling blocks can be used for filling gaps on the periphery of the cable core, so that the cable is more compact, and the whole structure is simple and compact.

Description

High-shielding efficient compact insulated cable

Technical Field

The utility model relates to a high-efficient compact insulated cable of high shielding mainly relates to the cable field.

Background

In recent years, the rapid development of high-voltage cable systems has found that there are some limitations in the technical development of crosslinked cable systems when people fully know the advantages of crosslinked cable systems.

At present, domestic high-voltage cables all appear in a form of crosslinked polyethylene insulation and corrugated aluminum sheaths, in recent ten years, the development change of the high-voltage cables is only that oil paper insulation is changed into crosslinked polyethylene insulation, and due to the pure pursuit of functions, the cables have new problems in bending performance and cable body weight.

SUMMERY OF THE UTILITY MODEL

Not enough to above prior art, the utility model provides a high-efficient compact insulated cable of high shielding can make the outlying space of cable core more full through adopting the triangle filling block, makes the cable compacter for overall structure is simple, and is compacter, and then brings better bending property.

In order to achieve the above purpose, the technical scheme of the utility model is that: the cable comprises a cable core, an insulation shielding layer, a waterproof layer and an outer protective layer; the cable core comprises a conductor, an insulating layer, a copper strip shielding layer and an inner protection layer; the cable comprises three cable cores, wherein the three cable cores are twisted, and triangular filling blocks are arranged in external gaps among the cable cores along the length direction of the cable.

The technical principle and the beneficial effects of the utility model are as follows:

this scheme can be dual protects the cable core in the aspect of electromagnetic interference from inside and outside through setting up copper strips shielding layer and insulation shield, improves shielding effect, can make the outlying space of cable core more solid through adopting the triangle filling block, makes the cable compacter for overall structure is simple, and is compacter, and then brings better bending property.

Preferably, the triangular filling blocks are provided with through holes along the length direction of the cable, the triangular filling blocks are arranged in series through cords, and the multi-section triangular filling blocks are matched with the cords for filling, so that the integral compactness is ensured, and the cable has necessary flexibility.

Preferably, the insulation shielding layer is formed by weaving copper wires, and the outer layer woven by the copper wires is formed by extruding fluorinated ethylene propylene copolymer, so that the whole insulation shielding layer has a better shielding effect.

Preferably, the waterproof layer is formed by filling waterproof yarns between two layers of water-blocking tapes and then wrapping the waterproof yarns, so that the cable has a good waterproof effect.

Preferably, the outer jacket is made of polytetrafluoroethylene, so that the outer jacket has a better wear-resistant effect.

Preferably, the insulating layer is made of a cross-linked polyethylene insulating material, so that insulation can be well performed.

Preferably, the copper strip screen adopts a braided shielding layer formed by alternately braiding tinned electric round copper wires and acrylic yarns, has a very good shielding effect, and is sufficiently corrosion-resistant.

Preferably, the inner sheath layer is made of nylon woven materials, has enough strength and wear-resisting effect, and can be made thin enough to keep the whole compactness.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only 1 of the embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

The cable comprises a conductor 1, an insulating layer 2, a copper strip shielding layer 3, an inner protection layer 4, an insulating shielding layer 5, a waterproof layer 6, an outer protection layer 7, a triangular filling block 8 and a wire rope 9.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are merely preferred embodiments of the present invention, rather than all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

As shown in fig. 1, the embodiment of the present invention includes a cable core, an insulation shielding layer 5, a waterproof layer 6 and an outer sheath 7; the cable core comprises a conductor 1, an insulating layer 2, a copper strip shielding layer 3 and an inner protection layer 4; the cable comprises three cable cores, wherein the three cable cores are twisted, and triangular filling blocks 8 are arranged in external gaps among the cable cores along the length direction of the cable.

The waterproof layer 6 is formed by filling waterproof yarns between two layers of water-blocking tapes and then wrapping the waterproof yarns, so that the cable has a good waterproof effect.

The outer protective layer 7 is made of polytetrafluoroethylene materials, and has a better wear-resistant effect.

The insulating layer 2 is made of a cross-linked polyethylene insulating material and can be well insulated.

The copper strip screen adopts a braided shielding layer formed by alternately braiding the shielding layer tinned electrical round copper wire and acrylic yarn, has a very good shielding effect, and is sufficiently anticorrosive.

The inner protective layer 4 is made of nylon woven materials, has enough strength and wear-resisting effect, and can be made thin enough to keep the whole compactness.

This scheme can be protected the cable core in the aspect of electromagnetic interference from inside and outside dual through setting up copper strips shielding layer 3 and insulation shield 5, improves the shielding effect, can make the outlying space of cable core more solid through adopting triangle filling block 8, makes the cable compacter for overall structure is simple, and is compacter.

The triangular filling blocks 8 are provided with through holes along the length direction of the cable, each triangular filling block 8 is serially connected through a cord 9, and the multi-section triangular filling blocks 8 are matched with the cord 9 for filling, so that the whole tightness is ensured, and the cable has necessary flexibility. The insulating and shielding layer 5 is formed by weaving copper wires, and the outer layer woven by the copper wires is formed by extruding fluorinated ethylene propylene copolymer, so that the whole insulating and shielding layer has a better shielding effect.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-shielding efficient compact insulated cable is characterized by comprising a cable core, an insulating shielding layer (5), a waterproof layer (6) and an outer protective layer (7);

the cable core comprises a conductor (1), an insulating layer (2), a copper strip shielding layer (3) and an inner protection layer (4);

the cable is formed by twisting three cable cores, and triangular filling blocks (8) are arranged in external gaps among the cable cores along the length direction of the cable.

2. A highly shielded, highly efficient and compact insulated cable as claimed in claim 1, wherein: the triangular filling blocks (8) are provided with through holes along the length direction of the cable, and the triangular filling blocks (8) are connected in series through a thread rope (9).

3. A highly shielded, highly efficient and compact insulated cable as claimed in claim 1, wherein: the insulation shielding layer (5) is formed by weaving copper wires, and the outer layer woven by the copper wires is formed by extruding fluorinated ethylene propylene copolymer.

4. A highly shielded, highly efficient and compact insulated cable as claimed in claim 1, wherein: and the waterproof layer (6) is formed by filling waterproof yarns between two layers of water-blocking tapes and then wrapping the waterproof yarns.

5. A highly shielded, highly efficient and compact insulated cable as claimed in claim 1, wherein: the outer protective layer (7) is made of polytetrafluoroethylene materials, and the outer protective layer (7) is made of polytetrafluoroethylene materials.

6. A highly shielded, highly efficient and compact insulated cable as claimed in claim 1, wherein: the insulating layer (2) is made of a cross-linked polyethylene insulating material.

7. A highly shielded, highly efficient and compact insulated cable as claimed in claim 1, wherein: the copper strip screen adopts a braided shielding layer formed by alternately braiding a shielding layer tinned electrical round copper wire and acrylic yarns.

8. A highly shielded, highly efficient and compact insulated cable as claimed in claim 1, wherein: the inner protection layer (4) is made of nylon woven materials.