Cold-resistant and high-temperature-resistant new energy wind power cable

Abstract

The utility model belongs to the field of cables, particularly relates to a cold-resistant and high-temperature-resistant new energy wind power cable, and provides the following scheme aiming at the problems that the existing cable is difficult to meet the requirement of keeping excellent performance under the extreme temperature condition, is not firm in cable connection and is easy to loosen: the cold-resistant and high-temperature-resistant new energy wind power cable comprises a cable core body and a cable outer layer, the periphery of the cable core body is wrapped with the cable outer layer, the cable core body is formed by twisting a plurality of strands of conductive wire cores, the cable outer layer comprises an inner sheath layer and an outer sheath layer, and the inner sheath layer is located in the periphery of the outer sheath layer. The inner sheath layer and the outer sheath layer are made of polyvinyl chloride materials and are made of thermoplastic polyurethane materials, so that the cable can keep excellent performance under the extreme temperature condition, normal operation of wind power generation equipment in a severe environment is ensured, connection between the cables is firmer and not prone to loosening through a fixing mode of the screws and the nuts, and the service life of the cable is prolonged. And the use performance and the safety of the cable are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, and in particular to a cold-resistant and high-temperature-resistant new energy wind power cable. Background Art

[0002] With the rapid development of new energy, wind power generation, as a clean and renewable energy form, has received extensive attention and application. However, wind power generation equipment is usually installed in outdoor areas with harsh environments, such as mountains and islands. The climate conditions in these areas are changeable and the temperature difference is large. As an important part of wind power generation equipment, wind cables have a direct impact on the normal operation and safety of wind power generation equipment due to their cold and high temperature resistance.

[0003] Traditional wind power cables are mostly made of a single material, which makes it difficult to maintain excellent performance under extreme temperature conditions. At the same time, there are also problems such as loose connection and easy loosening in the connection and fixation of the cable, which further affects the performance and safety of the wind power cable. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art that it is difficult to meet the requirements of maintaining excellent performance under extreme temperature conditions, the cable connection is not firm and is easy to loosen, and to propose a cold-resistant and high-temperature resistant new energy wind power cable.

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

[0006] A cold-resistant and high-temperature-resistant new energy wind power cable, comprising a cable core and a cable outer layer, wherein the cable outer layer is wrapped around the outside of the circumference of the cable core, the cable core is composed of a plurality of strands of conductive wire cores twisted together, and the cable outer layer comprises an inner sheath layer and an outer sheath layer, wherein the inner sheath layer is located inside the circumference of the outer sheath layer;

[0007] The inner sheath layer is made of polyvinyl chloride material, and the outer sheath layer is made of thermoplastic polyurethane material;

[0008] A connecting component is provided between two adjacent cable cores, and the connecting component is used for connecting and fixing the cables.

[0009] In a possible design, the connecting assembly includes two connecting tubes, which are respectively sleeved on the outside of the outer layer of the cable, and the connecting tubes are formed by hingedly connecting two semicircular tubes. Two screws are respectively provided between the connecting tubes, and one end of the screw is threadedly connected with a second nut, and the second nut is used for fastening the connecting tube. The circumference of the connecting tube is fixedly connected with a plurality of fixing ears, and a fastening rod is respectively installed between the corresponding two fixing ears, and both ends of the fastening rod are threadedly connected with two first nuts.

[0010] In a possible design, a copper sleeve is provided between two adjacent cable cores to fix the cable cores.

[0011] In a possible design, an anti-slip sleeve is provided inside the circumference of the connecting pipe.

[0012] In a possible design, a metal shielding layer is provided outside the circumference of the outer jacket layer.

[0013] In a possible design, the conductive core is made of high-purity oxygen-free copper to ensure the electrical conductivity of the cable.

[0014] In a possible design, the outer circumference of the conductive core is wrapped with a high-temperature resistant insulation layer, and the high-temperature resistant insulation layer is made of polyimide material.

[0015] In a possible design, the metal shielding layer is made of aluminum foil material.

[0016] In the present application, when in use, in a cold environment, the inner sheath layer of the polyvinyl chloride material can maintain the flexibility and cold resistance of the cable; in a high temperature environment, the outer sheath layer of the thermoplastic polyurethane material can resist high temperatures and maintain the stability and safety of the cable. The connection assembly achieves the connection and fixation of the cable through the coordinated use of the connecting tube, the screw, the second nut, the fixing ear, the fastening rod and the first nut. The design of the copper sleeve and the anti-slip sleeve further enhances the fixing effect between the cable core and the friction between the connecting tube and the outer layer of the cable. The metal shielding layer improves the anti-interference ability and electromagnetic shielding performance of the cable. The conductive core is made of high-purity oxygen-free copper to ensure the conductive performance of the cable; the high-temperature resistant insulating layer ensures the insulation performance of the cable in a high temperature environment.

[0017] Beneficial effects:

[0018] In the utility model, the cold-resistant and high-temperature-resistant new energy wind power cable adopts polyvinyl chloride material as the inner sheath layer and thermoplastic polyurethane material as the outer sheath layer, so that the cable can maintain excellent performance under extreme temperature conditions, thereby ensuring the normal operation of wind power generation equipment in harsh environments;

[0019] In the utility model, the cold-resistant and high-temperature resistant new energy wind power cable, through the design of the connecting component, includes a connecting pipe formed by two semicircular pipes hinged together, and a fixing method fastened by screws and nuts, so that the connection between the cables is more firm and not easy to loosen, thereby improving the performance and safety of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1This is a schematic cross-sectional structure diagram of a cold-resistant and high-temperature-resistant new energy wind power cable proposed by the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of a connection assembly of a cold-resistant and high-temperature-resistant new energy wind power cable proposed by the utility model;

[0022] Figure 3 This is a schematic cross-sectional structure diagram of a connection assembly of a cold-resistant and high-temperature-resistant new energy wind power cable proposed by the utility model;

[0023] Figure 4 This is a schematic diagram of the cross-sectional structure of the connection state of a cold-resistant and high-temperature-resistant new energy wind power cable proposed by the utility model.

[0024] In the figure: 1. cable core; 2. cable outer layer; 3. conductive core; 4. inner sheath layer; 5. outer sheath layer; 6. metal shielding layer; 7. connecting pipe; 8. fixing ear; 9. fastening rod; 10. first nut; 11. copper sleeve; 12. anti-slip sleeve; 13. screw; 14. second nut. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] Example 1

[0027] Reference Figure 1-Figure 4 A cable comprises: a cable core 1 and a cable outer layer 2, wherein the cable core 1 is composed of a plurality of conductive wire cores 3 twisted together to improve the electrical conductivity and tensile strength of the cable, and the cable outer layer 2 is wrapped outside the circumference of the cable core 1 and is composed of an inner sheath layer 4 and an outer sheath layer 5, wherein the inner sheath layer 4 is made of polyvinyl chloride material and has good insulation and cold resistance; the outer sheath layer 5 is made of thermoplastic polyurethane material and has high high temperature resistance and mechanical strength;

[0028] The connection and fixation of the cable is achieved through a connection assembly, which includes two connection tubes 7, which are respectively sleeved on the outside of the cable outer layer 2. The connection tubes 7 are formed by hingedly connecting two semicircular pipes, which are convenient for sleeve connection on the cable outer layer 2. Two through screws 13 are provided between the connection tubes 7, and one end of the screw 13 is respectively threadedly connected with a second nut 14. The connection tube 7 can be tightened by rotating the second nut 14;

[0029] In addition, a plurality of fixing ears 8 are fixedly connected to the circumference of the connecting tube 7, and a fastening rod 9 is installed between two corresponding fixing ears 8. Two first nuts 10 are threadedly connected to both ends of the fastening rod 9. The tightness of the fastening rod 9 can be adjusted by rotating the first nuts 10, thereby further strengthening the connection of the cable;

[0030] In order to enhance the fixing effect between the cable cores 1, a copper sleeve 11 is sleeved between two adjacent cable cores 1. The copper sleeve 11 has good conductivity and mechanical strength, and can effectively fix the cable cores 1 to prevent relative movement.

[0031] This application can be used in the field of cold-resistant and high-temperature-resistant new energy wind power cables, and can also be used in other fields applicable to this application.

[0032] Example 2

[0033] refer to Figure 1-Figure 4 , based on the improvement of Example 1: a cold-resistant and high-temperature-resistant new energy wind power cable, which is applied to the field of cold-resistant and high-temperature-resistant new energy wind power cables,

[0034] In order to increase the friction between the connecting tube 7 and the outer layer 2 of the cable and prevent the cable from sliding during the connection process, an anti-slip sleeve 12 is provided inside the circumference of the connecting tube 7. The anti-slip sleeve 12 can be made of rubber or other materials with a high friction coefficient;

[0035] In order to improve the anti-interference ability and electromagnetic shielding performance of the cable, a metal shielding layer 6 is provided outside the circumference of the outer sheath layer 5, and the metal shielding layer 6 is made of aluminum foil material;

[0036] The conductive core 3 is made of high-purity oxygen-free copper to ensure the conductivity of the cable. At the same time, the circumference of the conductive core 3 is wrapped with a high-temperature resistant insulation layer, which is made of polyimide material and has good high-temperature resistance and insulation properties.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cold-resistant and high-temperature resistant new energy wind power cable, characterized in that: include: A cable core (1) and a cable outer layer (2), wherein the cable outer layer (2) is wrapped outside the circumference of the cable core (1), the cable core (1) is composed of a plurality of strands of conductive wire cores (3) twisted together, and the cable outer layer (2) comprises an inner sheath layer (4) and an outer sheath layer (5), wherein the inner sheath layer (4) is located inside the circumference of the outer sheath layer (5); The inner sheath layer (4) is made of polyvinyl chloride material, and the outer sheath layer (5) is made of thermoplastic polyurethane material; A connecting component is provided between two adjacent cable cores (1), and the connecting component is used for connecting and fixing the cables.

2. A cold-resistant and high-temperature-resistant new energy wind power cable according to claim 1, characterized in that: The connection assembly comprises two connection pipes (7), the connection pipes (7) are respectively sleeved on the outside of the cable outer layer (2), the connection pipes (7) are formed by hingedly connecting two semicircular pipes, two screws (13) are respectively provided between the connection pipes (7), one end of the screw (13) is respectively threadedly connected with a second nut (14), the second nut (14) is used for fastening the connection pipe (7), the circumference of the connection pipe (7) is fixedly connected with a plurality of fixing ears (8), a fastening rod (9) is respectively installed between two corresponding fixing ears (8), and both ends of the fastening rod (9) are threadedly connected with two first nuts (10).

3. The cold-resistant and high-temperature-resistant new energy wind power cable according to claim 1 is characterized in that: A copper sleeve (11) is sleeved between two adjacent cable cores (1) and is used to fix the cable cores (1).

4. A cold-resistant and high-temperature-resistant new energy wind power cable according to claim 2, characterized in that: An anti-slip sleeve (12) is provided inside the circumference of the connecting pipe (7).

5. The cold-resistant and high-temperature-resistant new energy wind power cable according to claim 1 is characterized in that: A metal shielding layer (6) is provided outside the circumference of the outer sheath layer (5).

6. The cold-resistant and high-temperature-resistant new energy wind power cable according to claim 1 is characterized in that: The conductive core (3) is made of high-purity oxygen-free copper to ensure the electrical conductivity of the cable.

7. A cold-resistant and high-temperature-resistant new energy wind power cable according to claim 6, characterized in that: The outer circumference of the conductive wire core (3) is wrapped with a high-temperature resistant insulation layer, and the high-temperature resistant insulation layer is made of a polyimide material.

8. The cold-resistant and high-temperature-resistant new energy wind power cable according to claim 5, characterized in that: The metal shielding layer (6) is made of aluminum foil material.

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