Ozone-resistant polyethylene cable

Abstract

The ozone-resistant polyethylene cable comprises a polyethylene cable body, the polyethylene cable body is composed of a copper core, an insulating layer, a filling layer, a shielding layer, a built-in steel belt, a sponge buffer layer and an outer sheath layer, the insulating layer is arranged on the outer side of the copper core, the filling layer is arranged on the outer side of the insulating layer, and the shielding layer is arranged on the outer side of the sponge buffer layer. The outer side of the filling layer is provided with a shielding layer, the outer side of the shielding layer is provided with a built-in steel belt, the outer side of the built-in steel belt is provided with a sponge buffer layer, and the outer side of the sponge buffer layer is provided with an outer sheath layer. According to the utility model, by adding the polymerization inhibitor and the carbon black particles into the polyethylene resin, the produced polyethylene cable outer sheath layer is used as the outer sheath layer of the polyethylene cable body, so that the outer part of the polyethylene cable body has stronger ozone resistance, and meanwhile, the insulating layer made of the crosslinked polyethylene material is arranged inside the polyethylene cable body, so that current can be effectively isolated, short circuit can be prevented, and the service life of the cable is prolonged. And the safety and the stability of the cable are ensured.

Description

Technical Field

[0001] This utility model relates to the field of polyethylene cable technology, specifically to an ozone-resistant polyethylene cable. Background Technology

[0002] Polyethylene cables, as the name suggests, are cables that use polyethylene as their primary insulation material. Their core definition lies in the use of polyethylene or cross-linked polyethylene as the cable's insulation layer. This choice of material endows polyethylene cables with a range of excellent properties, making them indispensable in the fields of power transmission and distribution.

[0003] Existing polyethylene cables are mainly made of polyethylene material, which can resist ultraviolet rays and moisture well, but it does not have ozone resistance. This makes the material prone to cracking and aging during use, thus affecting the safety and durability of the cable. Therefore, we propose an ozone-resistant polyethylene cable. Utility Model Content

[0004] The purpose of this invention is to provide an ozone-resistant polyethylene cable to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an ozone-resistant polyethylene cable, comprising a polyethylene cable body, wherein the polyethylene cable body is composed of a copper core, an insulation layer, a filling layer, a shielding layer, an inner steel strip, a sponge buffer layer, and an outer sheath layer. An insulation layer is disposed on the outside of the copper core, a filling layer is disposed on the outside of the insulation layer, a shielding layer is disposed on the outside of the filling layer, an inner steel strip is disposed on the outside of the shielding layer, a sponge buffer layer is disposed on the outside of the inner steel strip, and an outer sheath layer is disposed on the outside of the sponge buffer layer.

[0006] As a further preferred embodiment of this technical solution, the outer sheath layer is composed of polyethylene resin, polymerization inhibitor and carbon black particles.

[0007] As a further preferred embodiment of this technical solution, the insulating layer is specifically made of cross-linked polyethylene.

[0008] As a further preferred embodiment of this technical solution, the filler layer is specifically made of polyethylene.

[0009] As a further preferred embodiment of this technical solution, the shielding layer is composed of aluminum foil and a copper braided structure, with the copper braided structure disposed on the outside of the aluminum foil.

[0010] As a further preferred embodiment of this technical solution, the sponge buffer layer is specifically made of polyurethane sponge.

[0011] As a further preferred embodiment of this technical solution, the copper core specifically comprises three copper cores.

[0012] This utility model provides an ozone-resistant polyethylene cable, which has the following beneficial effects:

[0013] (1) This utility model produces a polyethylene cable outer sheath layer by adding a polymerization inhibitor and carbon black particles to polyethylene resin, which serves as the outer sheath layer of the polyethylene cable body, giving it strong ozone resistance. At the same time, it has an insulation layer of cross-linked polyethylene material inside, which can effectively isolate current and prevent short circuits, ensuring the safety and stability of the cable.

[0014] (2) The present invention has an internal steel strip inside the polyethylene cable body, which not only provides stable support to the outside and improves the overall strength and flexibility of the polyethylene cable body, but also provides internal protection to prevent external forces from damaging the polyethylene cable body and thus affecting the normal use of the internal circuit. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of this utility model;

[0017] Figure 3 This is a schematic diagram of a half-section of the present invention;

[0018] Figure 4 This is a schematic diagram of the composition and structure of the outer sheath layer of this utility model;

[0019] Figure 5 This is a schematic diagram of the shielding layer structure of this utility model;

[0020] In the diagram: 1. Polyethylene cable body; 2. Copper core; 3. Insulation layer; 4. Filler layer; 5. Shielding layer; 6. Internal steel strip; 7. Sponge buffer layer; 8. Outer sheath layer; 9. Polyethylene resin; 10. Polymer inhibitor; 11. Carbon black particles; 12. Copper braided structure; 13. Aluminum foil. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] This utility model provides a technical solution: such as Figures 1-5As shown, in this embodiment, an ozone-resistant polyethylene cable includes a polyethylene cable body 1. The polyethylene cable body 1 is composed of a copper core 2, an insulation layer 3, a filling layer 4, a shielding layer 5, an inner steel strip 6, a sponge buffer layer 7, and an outer sheath layer 8. An insulation layer 3 is provided on the outside of the copper core 2, a filling layer 4 is provided on the outside of the insulation layer 3, a shielding layer 5 is provided on the outside of the filling layer 4, an inner steel strip 6 is provided on the outside of the shielding layer 5, a sponge buffer layer 7 is provided on the outside of the inner steel strip 6, and an outer sheath layer 8 is provided on the outside of the sponge buffer layer 7. Specifically, there are three copper cores 2.

[0023] When using ozone-resistant polyethylene cables, the polyethylene cable body 1 is used for electrical connection. During use, three copper cores 2 serve as the conductive core of the cable, responsible for efficient current transmission. Copper has excellent conductivity and good mechanical strength, ensuring the reliability of the cable. The insulation layer 3 improves the heat resistance, voltage resistance, and ozone resistance of the copper cores 2 during use, ensuring the safety of the polyethylene cable body 1 during use. The filler layer 4 helps isolate the individual copper cores 2, preventing electrical faults caused by contact or short circuits between the copper cores 2, and also provides additional mechanical support to prevent the copper cores 2 from deforming or being damaged when the polyethylene cable body 1 is bent or subjected to external forces. Shielding... Layer 5 provides electromagnetic interference protection, ensuring signal integrity and preventing external electromagnetic interference from affecting the performance of the polyethylene cable body 1. The built-in steel strip 6 enhances the tensile strength and support capacity of the polyethylene cable body 1, improves impact resistance, and protects the internal insulation layer 3 and copper core 2 from physical damage. The sponge buffer layer 7 absorbs external impacts, reducing damage to the internal structure of the polyethylene cable body 1 under low temperatures or physical impacts, while providing necessary buffering and isolation to prevent damage during installation and use. The outer sheath layer 8 protects the polyethylene cable body 1 from external environmental influences, including ozone, ultraviolet radiation, moisture, chemicals, and mechanical damage. In summary, this ozone-resistant polyethylene cable has a robust overall structure, good resistance to ozone, ultraviolet radiation, moisture, and chemicals, and excellent electromagnetic interference resistance, making it more suitable for practical applications.

[0024] like Figures 1-5 As shown, the outer sheath layer 8 is composed of polyethylene resin 9, polymerization inhibitor 10 and carbon black particles 11.

[0025] After adding polymerization inhibitor 10 and carbon black particles 11 to polyethylene resin 9, the produced polyethylene cable outer sheath layer 8 can have good ozone resistance, and at the same time maintain good environmental resistance when exposed to external ultraviolet rays, moisture or chemicals.

[0026] like Figures 1-5 As shown, the insulation layer 3 is specifically made of cross-linked polyethylene.

[0027] Cross-linked polyethylene provides electrical insulation for the polyethylene cable body 1, preventing current leakage and ensuring the safety and reliability of the cable. The cross-linked structure enhances the overall high temperature resistance and ozone resistance.

[0028] like Figures 1-5 As shown, the filler layer 4 is specifically made of polyethylene.

[0029] By constructing the filling layer 4 with polyethylene filler, the overall durability of the polyethylene cable body 1 can be improved. Especially when facing high temperature, high humidity or other harsh environmental conditions, the polyethylene filler can also prevent moisture and air from entering the cable, which helps to extend the service life of the polyethylene cable body 1.

[0030] like Figures 1-5 As shown, the shielding layer 5 is composed of aluminum foil 13 and copper braided structure 12, with the copper braided structure 12 disposed on the outside of the aluminum foil 13.

[0031] By combining the design of aluminum foil 13 and copper braided structure 12, a composite shielding layer 5 is formed, with aluminum foil 13 inside and copper braided structure 12 outside. This combines the advantages of both, providing good flexibility and ensuring effective shielding performance.

[0032] like Figures 1-5 As shown, the sponge buffer layer 7 is specifically made of polyurethane sponge.

[0033] Polyurethane foam has excellent shock absorption and damping capabilities, which can effectively reduce the impact of external impacts on cables and reduce damage to cables during transportation, installation and use. At the same time, it has excellent chemical resistance, making it suitable for use in various industrial environments and helping to extend the service life of cables.

[0034] This utility model provides an ozone-resistant polyethylene cable. The specific working principle is as follows: During use, three copper cores 2 serve as the conductive core of the polyethylene cable body 1, responsible for the effective transmission of current. The insulation layer 3 provides electrical insulation to prevent current leakage. The filling layer 4 constructs internal support and isolates each copper core 2. The shielding layer 5 provides electromagnetic shielding. The built-in steel strip 6 can improve the overall strength and flexibility of the polyethylene cable body 1. The sponge buffer layer 7 has good shock absorption and damping capabilities. The outer sheath layer 8 has good ozone resistance and maintains good environmental resistance when exposed to external ultraviolet rays, moisture, or chemicals.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An ozone-resistant polyethylene cable, comprising a polyethylene cable body (1), characterized in that: The polyethylene cable body (1) is composed of a copper core (2), an insulation layer (3), a filling layer (4), a shielding layer (5), an inner steel strip (6), a sponge buffer layer (7), and an outer sheath layer (8). An insulation layer (3) is provided on the outside of the copper core (2), a filling layer (4) is provided on the outside of the insulation layer (3), a shielding layer (5) is provided on the outside of the filling layer (4), an inner steel strip (6) is provided on the outside of the shielding layer (5), a sponge buffer layer (7) is provided on the outside of the inner steel strip (6), and an outer sheath layer (8) is provided on the outside of the sponge buffer layer (7).

2. The ozone-resistant polyethylene cable according to claim 1, characterized in that: The outer sheath layer (8) is composed of polyethylene resin (9), polymerization inhibitor (10) and carbon black particles (11).

3. The ozone-resistant polyethylene cable according to claim 1, characterized in that: The insulating layer (3) is specifically made of cross-linked polyethylene.

4. The ozone-resistant polyethylene cable according to claim 1, characterized in that: The filler layer (4) is specifically made of polyethylene.

5. The ozone-resistant polyethylene cable according to claim 1, characterized in that: The shielding layer (5) is composed of an aluminum foil (13) and a copper braided structure (12), with the copper braided structure (12) disposed on the outside of the aluminum foil (13).

6. The ozone-resistant polyethylene cable according to claim 1, characterized in that: The sponge buffer layer (7) is specifically made of polyurethane sponge.

7. The ozone-resistant polyethylene cable according to claim 1, characterized in that: The copper core (2) consists of three pieces.

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