CN215770579U - High-flexibility concentric conductor cable - Google Patents

Abstract

The utility model discloses a high-flexibility concentric conductor cable, which adopts the technical scheme that: the novel conductive cable comprises a first conductor, wherein a conductive shielding layer is arranged outside the first conductor, an inner insulating layer is arranged outside the conductive shielding layer, an insulating shielding layer is arranged outside the inner insulating layer, a plurality of second conductors are arranged outside the insulating shielding layer, the second conductors are formed by winding or weaving tinned or non-tinned copper wires, an outer insulating layer is arranged outside the second conductors, and a sheath layer is arranged outside the outer insulating layer.

Description

High-flexibility concentric conductor cable

Technical Field

The utility model relates to the technical field of cables, in particular to a high-flexibility concentric conductor cable.

Background

Common concentric conductor cables in the market at present are plastic power cables, and the concentric conductor structure is formed by winding a layer of copper wire outside a cable core. With the continuous development of industries such as mechanical equipment, ships, heavy industry and the like in China, the requirements on the high electrical performance, high flexibility and other performances of the cable are higher and higher, and the existing product is difficult to meet the use requirements. The traditional concentric conductor cable has limited cable core outer diameter, and the winding copper wire is difficult to meet the requirement of the same section of the outer concentric conductor and the core conductor.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems mentioned in the background technology, the utility model aims to provide a high-flexibility concentric conductor cable so as to solve the problems that the traditional concentric conductor cable has limited cable core outer diameter and a winding copper wire is difficult to meet the requirement of the same section of an outer layer concentric conductor and a core conductor.

The technical purpose of the utility model is realized by the following technical scheme:

the utility model provides a high flexibility concentric conductor cable, includes first conductor, first conductor outside sets up the conductor shielding layer, the outside of conductor shielding layer is provided with the internal insulation layer, the outside of internal insulation layer is provided with the insulation shielding layer, the insulation shielding layer outside is provided with a plurality of second conductors, the second conductor adopts tin-plating or not tin-plating copper wire winding or weave and form, second conductor outside is provided with the external insulation layer, the external insulation layer outside be provided with the restrictive coating.

Furthermore, the first conductor is formed by bundling a plurality of strands of tinned or non-tinned copper wires, and the bundling wire and the compound twisting direction are the same.

Through the technical scheme, the cross sectional area of the first conductor and the mechanical strength of the first conductor can be ensured.

Furthermore, the inner insulating layer and the outer insulating layer are made of ethylene propylene rubber insulating materials.

Through the technical scheme, the ethylene propylene rubber insulating material has high mechanical strength, and meanwhile, the electrical performance of the ethylene propylene rubber insulating material is good.

Further, the conductor shielding layer and the insulation shielding layer are made of semi-conductive rubber materials.

Through the technical scheme, the semi-conductive rubber material is good in flexibility, excellent in shielding function and good in electrical performance.

Further, the second conductor is formed by winding or weaving a plurality of strands of tinned or non-tinned copper wires, and the resistance value of the second conductor is the same as that of the first conductor.

Through above-mentioned technical scheme, second conductor stranded copper wire winding or weave and form, not only can ensure the cross-section of second conductor, still can improve the compliance and the resistant performance of twisting of cable.

Further, the sheath layer is made of an elastomer.

Through the technical scheme, the flexibility and the bending resistance of the cable are improved by the sheath layer

In conclusion, the utility model mainly has the following beneficial effects:

1. the first conductor is softer than the traditional positive and negative stranded conductor by adopting a processing technology of small pitch and equidirectional stranding, so that the softness and the bending resistance of the cable are improved;

2. the inner insulating layer and the outer insulating layer are insulated by the ethylene propylene rubber with high physical and mechanical properties and high electrical properties, so that the physical and mechanical properties of the cable can be effectively ensured; the other side is full, the voltage grade of the cable can be improved, and the performance requirements of the cable in different occasions and different voltage grades are met;

3. the second conductor is formed by winding or weaving a plurality of strands of copper wires, so that the section of the second conductor can be ensured, and the flexibility and the torsion resistance of the cable can be improved;

4. polyolefin and rubber are adopted as the sheath layer, so that the physical and mechanical properties of high strength, wear resistance, oil resistance and the like are met, the flexibility of the cable can be improved, and the application range of the cable can be enlarged to a great extent.

Drawings

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

Reference numerals: 1. a first conductor; 2. a conductor shield layer; 3. an inner insulating layer; 4. an insulating shield layer; 5. a second conductor; 6. an outer insulating layer; 7. a sheath layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

The utility model provides a high flexibility concentric conductor cable, including first conductor 1, 1 outside of first conductor sets up conductor shield 2, the outside of conductor shield 2 is provided with internal insulation layer 3, the outside of internal insulation layer 3 is provided with insulation shield 4, conductor shield 2, internal insulation layer 3 and insulation shield 4 adopt the crowded package setting of three-layer coextrusion mode, insulation shield 4 outside is provided with a plurality of second conductors 5, second conductor 5 adopts the winding of tinned or non-tinned copper wire or weaves and forms, the crowded package in 5 outside of second conductors is provided with external insulation layer 6, external insulation layer 6 crowded package outward be provided with restrictive coating 7.

Referring to fig. 1, the first conductor 1 is formed by bundling a plurality of tinned or non-tinned copper wires, and the bundling direction and the multiple twisting direction are the same, in this embodiment, the first conductor 1 is formed by bundling a plurality of tinned copper wires.

Referring to fig. 1, the inner insulating layer 3 and the outer insulating layer 6 are made of an ethylene propylene rubber insulating material, the strength of the inner insulating layer 3 and the outer insulating layer 6 is not less than 8.0MP, the elongation at break is not less than 300%, and the insulation resistance constant Ki is not less than 5000M Ω km.

Referring to fig. 1, the conductor shield layer 2 and the insulation shield layer 4 are made using a semiconductive rubber material.

Referring to fig. 1, the second conductor 5 is wound or woven using a plurality of strands of tin-plated or tin-free copper wires, and the resistance value of the second conductor 5 is the same as that of the first conductor 1.

Referring to fig. 1, the sheath layer 7 is made of an elastomer, and the sheath layer 7 may be made of a high-strength high-flexibility low-smoke halogen-free polyolefin sheath material, chlorinated polyethylene or chloroprene rubber.

In conclusion, the first conductor 1 is softer than the traditional positive and negative stranded conductor by adopting a processing technology of small pitch and equidirectional stranding, so that the flexibility and the bending resistance of the cable are improved; the inner insulating layer 3 and the outer insulating layer 6 are insulated by ethylene propylene rubber with high physical and mechanical properties and high electrical properties, so that the physical and mechanical properties of the cable can be effectively ensured; the other side is full, the voltage grade of the cable can be improved, and the performance requirements of the cable in different occasions and different voltage grades are met; the second conductor 5 is formed by winding or weaving a plurality of strands of copper wires, so that the section of the second conductor 5 can be ensured,the flexibility and the torsion resistance of the cable can be improved; polyolefin and rubber are adopted as the sheath layer 7, so that physical and mechanical properties such as high strength, wear resistance, oil resistance and the like are met, the flexibility of the cable can be improved, the application range of the cable can be enlarged to a great extent, the voltage grade of the cable can reach 26/35kV, and the sectional area of the cable is 25-500 mm²And the bending radius is not more than 2 times of the outer diameter of the cable.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A highly flexible concentric conductor cable comprising a first conductor (1), characterized in that: first conductor (1) outside sets up conductor shield (2), the outside of conductor shield (2) is provided with internal insulation layer (3), the outside of internal insulation layer (3) is provided with insulation shield (4), insulation shield (4) outside is provided with a plurality of second conductors (5), second conductor (5) adopt the tin-plating or do not tin-plating copper wire winding or weave and form, second conductor (5) outside is provided with external insulation layer (6), external insulation layer (6) be provided with restrictive coating (7) outward.

2. A highly flexible concentric conductor cable according to claim 1, wherein: the first conductor (1) is formed by combining a plurality of strands of tinned or non-tinned copper wire bundles, and the bundle wire and the compound twisting direction are the same.

3. A highly flexible concentric conductor cable according to claim 1, wherein: the inner insulating layer (3) and the outer insulating layer (6) are made of ethylene propylene rubber insulating materials.

4. A highly flexible concentric conductor cable according to claim 1, wherein: the conductor shielding layer (2) and the insulation shielding layer (4) are made of semi-conductive rubber materials.

5. A highly flexible concentric conductor cable according to claim 1, wherein: the second conductor (5) is formed by winding or weaving a plurality of strands of tinned or non-tinned copper wires, and the resistance value of the second conductor (5) is the same as that of the first conductor (1).

6. A highly flexible concentric conductor cable according to claim 1, wherein: the sheath layer (7) is made of an elastomer.

Images