A carbon fiber composite core cable

Abstract

The utility model relates to the technical field of cables, and discloses a carbon fiber composite core cable, including a reinforcing core, an insulating layer fixedly connected to the outside of the reinforcing core, a shielding layer fixedly connected to the outside of the insulating layer, an aluminum strip fixedly connected to the outside of the shielding layer, a hot aluminum alloy layer fixedly connected to the outside of the aluminum strip, a reinforcing layer fixedly connected to the outside of the hot aluminum alloy layer, reinforcing ribs arranged inside the reinforcing ribs, a plurality of metal rings arranged inside the reinforcing ribs, and a waterproof layer fixedly connected to the outside of the reinforcing layer. In the utility model, the aluminum strip solves the problem that the carbon fiber core is relatively brittle, has a large bending radius requirement, and is easily damaged by external forces. The bending radius of the conductor can be more than 1 times smaller than that of the traditional carbon fiber conductor, which is convenient for packaging, transportation and installation. The hot aluminum alloy layer solves the problem that the expansion coefficient of the carbon fiber and the conductor of the traditional carbon fiber conductor is inconsistent, resulting in the extrusion deformation of the carbon fiber.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a carbon fiber composite core cable. Background Art

[0002] A cable is made of one or more mutually insulated conductors and an outer insulating protective layer. It is a wire that transmits electricity or information from one place to another. Power cables are commonly used in urban underground power grids, power station lead-out lines, internal power supply of industrial and mining enterprises, and underwater transmission lines across rivers and seas. In power lines, the proportion of cables is gradually increasing.

[0003] According to the current development situation of overhead stranded cables and the shortcomings of carbon fiber coupled core conductors, cables have defects such as wire breakage (not resistant to pressure, not resistant to bending), corrosion resistance and difficulty in construction and crimping, which limits the promotion of carbon fiber conductors. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a carbon fiber composite core cable which can be more than one time smaller than a traditional carbon fiber conductor, is convenient for packaging, transportation and installation, and improves the reliability of conductor operation.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A carbon fiber composite core cable comprises a reinforcing core, an insulating layer is fixedly connected to the outside of the reinforcing core, a shielding layer is fixedly connected to the outside of the insulating layer, an aluminum strip is fixedly connected to the outside of the shielding layer, a hot aluminum alloy layer is fixedly connected to the outside of the aluminum strip, and a reinforcing layer is fixedly connected to the outside of the hot aluminum alloy layer.

[0007] Furthermore, reinforcing ribs are arranged inside the reinforcing layer.

[0008] Furthermore, a plurality of metal rings are arranged inside the reinforcing ribs.

[0009] Furthermore, a waterproof layer is fixedly connected to the outside of the reinforcement layer.

[0010] Furthermore, a protective layer is fixedly connected to the outside of the waterproof layer.

[0011] Furthermore, a plurality of wear-resistant strips are fixedly connected to the outside of the protective layer.

[0012] Furthermore, metal wires are fixedly connected inside the wear-resistant strips.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, the graphene-coated carbon fiber and the conductive epoxy resin are filled and cured to strengthen the core. The aluminum strip solves the problems that the carbon fiber core is brittle, has a large bending radius requirement, and is easily damaged by external forces. The bending radius of the wire can be more than 1 times smaller than that of the traditional carbon fiber wire, which is convenient for packaging, transportation and installation.

[0015] 2. In the utility model, the heat-resistant aluminum alloy layer is provided to solve the problem of the inconsistency of the expansion coefficients of the carbon fiber and the conductor in the traditional carbon fiber conductor, which leads to the extrusion deformation of the carbon fiber. The expansion coefficients of the composite reinforcing core and the heat-resistant aluminum alloy conductor are consistent, thereby improving the operating reliability of the conductor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is an overall schematic diagram of a carbon fiber composite core cable proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of a reinforcing core of a carbon fiber composite core cable proposed in the utility model;

[0018] Figure 3 This is a schematic diagram of a reinforcement layer of a carbon fiber composite core cable proposed by the utility model.

[0019] Legend:

[0020] 1. Strengthening core; 2. Insulating layer; 3. Shielding layer; 4. Aluminum tape; 5. Hot-dip aluminum alloy layer; 6. Strengthening layer; 7. Reinforcing ribs; 8. Metal ring; 9. Waterproof layer; 10. Protective layer; 11. Wear-resistant strip; 12. Metal wire. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Reference Figure 1-3The utility model provides an embodiment: a carbon fiber composite core cable, including a reinforcing core 1, which is made of graphene-coated carbon fiber and conductive epoxy resin filled and cured. The weight of the reinforcing core 1 is only one-fourth of that of an ordinary steel core, and the tensile strength is 5 times that of an ordinary steel core. It can be used in large-span places such as rivers and lakes. The reinforcing core 1 is fixedly connected to the outside with an insulating layer 2, the insulating layer 2 is fixedly connected to the outside with a shielding layer 3, and the shielding layer 3 is fixedly connected to the outside with an aluminum tape 4. The reinforcing core 1 is protected by the aluminum tape 4, which solves the problem that the carbon fiber core is brittle, has a large bending radius requirement, and is easily damaged by external forces. The bending radius of the conductor can be more than 1 times smaller than that of the traditional carbon fiber conductor, which is convenient for packaging, transportation and installation. The aluminum tape 4 is fixedly connected to the outside with a hot aluminum alloy layer 5, which solves the problem that the expansion coefficient of the carbon fiber and the conductor of the traditional carbon fiber conductor is inconsistent, resulting in carbon The problem of fiber extrusion deformation, the expansion coefficient of the reinforcing core 1 and the heat-resistant aluminum alloy conductor is consistent, which improves the reliability of the conductor operation, the outside of the heat-resistant aluminum alloy layer 5 is fixedly connected with a reinforcing layer 6, and the inside of the reinforcing layer 6 is provided with reinforcing ribs 7. The inner side of the reinforcing ribs 7 is provided with a plurality of metal rings 8. The reinforcing ribs 7 bear the external tension of the cable to avoid the tension directly acting on the reinforcing core 1, which causes damage to the reinforcing core 1. The compression resistance of the cable can be increased by setting the metal rings 8. The outside of the reinforcing layer 6 is fixedly connected with a waterproof layer 9, and the outside of the waterproof layer 9 is fixedly connected with a protective layer 10. The outside of the protective layer 10 is fixedly connected with a plurality of wear-resistant strips 11, and the inside of the wear-resistant strips 11 are fixedly connected with metal wires 12. The wear-resistant strips 11 and the metal wires 12 can avoid the wear of the protective layer 10 during the cable construction process, and avoid the problem of reducing the practical life of the cable.

[0023] Working principle: Graphene is used to wrap carbon fiber and conductive epoxy resin is used to fill and solidify the reinforcing core 1. The aluminum tape 4 protects the reinforcing core 1 to avoid the problems of the carbon fiber core being brittle, requiring a large bending radius, and being easily damaged by external forces. The reinforcing ribs 7 are provided to withstand the external tension on the cable to avoid the tension acting directly on the reinforcing core 1 and causing damage to the reinforcing core 1. The metal ring 8 can increase the compressive strength of the cable. The wear-resistant strips 11 and metal wires 12 can prevent the protective layer 10 from being worn during the cable construction process.

[0024] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A carbon fiber composite core cable, comprising a reinforcing core (1), characterized in that: The exterior of the reinforcing core (1) is fixedly connected to an insulating layer (2), the exterior of the insulating layer (2) is fixedly connected to a shielding layer (3), the exterior of the shielding layer (3) is fixedly connected to an aluminum strip (4), the exterior of the aluminum strip (4) is fixedly connected to a hot aluminum alloy layer (5), and the exterior of the hot aluminum alloy layer (5) is fixedly connected to a reinforcing layer (6).

2. A carbon fiber composite core cable according to claim 1, characterized in that: Reinforcing ribs (7) are arranged inside the reinforcing layer (6).

3. A carbon fiber composite core cable according to claim 2, characterized in that: A plurality of metal rings (8) are arranged inside the reinforcing rib (7).

4. A carbon fiber composite core cable according to claim 1, characterized in that: The exterior of the reinforcement layer (6) is fixedly connected with a waterproof layer (9).

5. A carbon fiber composite core cable according to claim 4, characterized in that: The outside of the waterproof layer (9) is fixedly connected with a protective layer (10).

6. A carbon fiber composite core cable according to claim 5, characterized in that: A plurality of wear-resistant strips (11) are fixedly connected to the outside of the protective layer (10).

7. A carbon fiber composite core cable according to claim 6, characterized in that: The wear-resistant strips (11) are all fixedly connected with metal wires (12) inside.

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