Tear-resistant and high-temperature-resistant cable

Abstract

The utility model relates to an anti-tear high temperature resistant cable, which belongs to the technical field of power cables and comprises a cable body, the cable body comprises a conductor, an insulating layer, a high temperature resistant layer, a shielding layer and a tensile layer which are arranged from inside to outside, the outer wall of the conductor is attached to the inner wall of the insulating layer, and the outer wall of the insulating layer is attached to the inner wall of the high temperature resistant layer. The outer wall of the high-temperature-resistant layer is attached to the inner wall of the shielding layer, and the outer wall of the shielding layer is attached to the inner wall of the tensile layer. The cable has the effect of improving the tensile property of the high-temperature-resistant cable.

Description

Technical Field

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

[0002] Ordinary cables are prone to insulation aging and scorching at high temperatures, resulting in damage to the cables and rendering them unusable. High-temperature-resistant cables can operate normally and stably under rated high temperatures, with signal or power transmission performance unaffected, and can also ensure a long service life of the cables. However, in the existing technology, the outer shells of high-temperature-resistant cables may be damaged due to pulling during long-term use, allowing moisture to enter the interior of the cables and affecting their normal operation. Summary of the Utility Model

[0003] In order to improve the tensile performance of high-temperature-resistant cables and thus extend their service life, this application provides a tear-resistant and high-temperature-resistant cable.

[0004] A tear-resistant and high-temperature-resistant cable provided by this application adopts the following technical solutions:

[0005] A tear-resistant and high-temperature-resistant cable includes a cable body, and the cable body includes a conductor, an insulating layer, a high-temperature-resistant layer, a shielding layer, and a tensile layer arranged from the inside to the outside. The outer wall of the conductor is attached to the inner wall of the insulating layer, the outer wall of the insulating layer is attached to the inner wall of the high-temperature-resistant layer, the outer wall of the high-temperature-resistant layer is attached to the inner wall of the shielding layer, and the outer wall of the shielding layer is attached to the inner wall of the tensile layer.

[0006] By adopting the above technical solutions, the conductor is the conductive part of the high-temperature-resistant and fire-proof cable, and the insulating layer is used to prevent current leakage. Through the setting of the high-temperature-resistant layer, the cable can be used in a high-temperature environment, expanding the applicable range of the cable. Through the setting of the shielding layer, the stability of signal transmission of the cable is improved. Through the setting of the tensile layer, the tensile performance and toughness of the conductor are enhanced, making the cable not easily break and effectively extending the service life of the cable.

[0007] Preferably, the conductor includes a rubber rope and a plurality of core wires, and the plurality of core wires are spirally wound around the rubber rope to form the conductor.

[0008] By adopting the above technical solutions, a conductor is formed by incorporating a rubber rope into the core wires. The rubber rope has good tensile performance, thus effectively improving the tensile performance of the conductor.

[0009] Preferably, the insulating layer includes an inner insulating part and an outer insulating part. The inner wall of the inner insulating part is attached to the conductor, the outer wall of the inner insulating part is attached to the inner wall of the outer insulating part. The inner insulating part is made of rubber material, and the outer insulating part is made of fluoroplastics.

[0010] By adopting the above technical solution, fluoroplastics have excellent insulation performance and can be used in special environments such as high voltage and high frequency, and are not prone to current leakage or dielectric breakdown; rubber can not only withstand high temperatures but also has good toughness, which improves the tensile performance of the cable while ensuring its normal use.

[0011] Preferably, the high-temperature resistant layer is made of polypropylene material.

[0012] By adopting the above technical solution, polypropylene material is a thermoplastic resin with excellent performance, a colorless translucent thermoplastic lightweight general-purpose plastic, which has chemical resistance, heat resistance, electrical insulation and outstanding flexural fatigue strength, thus ensuring the high-temperature resistance and tensile strength of the cable.

[0013] Preferably, the shielding layer is made of woven glass fiber and carbon fiber.

[0014] By adopting the above technical solution, glass fiber can shield both long waves and short waves and is a good shielding material, which can effectively avoid the interference of electromagnetic waves on the cable, and carbon fiber can also be used as a shielding material, and both have insulation performance, effectively improving the performance of the cable.

[0015] Preferably, the tensile layer is made of polyurethane material.

[0016] By adopting the above technical solution, polyurethane material has good elasticity and wear resistance, which can improve the tensile performance of the cable and its service life at the same time.

[0017] Preferably, the core wire is made of tinned copper material.

[0018] By adopting the above technical solution, the core wire made of tinned copper is relatively soft. Compared with bare copper wire, it not only has good electrical conductivity but also is not prone to embrittlement and is not easy to break during the winding process with the rubber rope, improving the tensile performance of the conductor.

[0019] Preferably, a bonding layer is provided between the shielding layer and the tensile layer, and the bonding layer is sprayed with polyimide glue.

[0020] By adopting the above technical solution, polyimide glue is an organic high-temperature glue. While being heat-resistant, aging-resistant and insulating, it can make the shielding layer better adhere to the high-temperature resistant layer, making the cable not easy to loosen, improving the tightness of the cable, and thus improving the service life of the cable.

[0021] In summary, the present application includes at least one of the following beneficial technical effects:

[0022] 1. The conductor is the conductive part of the high-temperature resistant and fire-proof cable. The insulating layer is used to prevent current leakage. Through the setting of the high-temperature resistant layer, the cable can be used in high-temperature environments, expanding the applicable range of the cable. Through the setting of the shielding layer, the stability of signal transmission of the cable is improved. Through the setting of the tensile layer, the tensile property and toughness of the conductor are enhanced, making the cable not easily break and effectively extending the service life of the cable;

[0023] 2. Polyimide glue is an organic high-temperature glue. While being high-temperature resistant, aging resistant and insulating, it can make the shielding layer better adhere to the high-temperature resistant layer, preventing the cable from becoming loose, improving the tightness of the cable, and thus extending the service life of the cable. Brief Description of the Drawings

[0024] Figure 1 It is a schematic structural diagram of an embodiment of the present application.

[0025] Description of the Reference Numerals: 1. Cable body; 11. Conductor; 111. Rubber rope; 112. Core wire; 12. Insulating layer; 121. Inner insulating part; 122. Outer insulating part; 13. High-temperature resistant layer; 14. Shielding layer; 15. Bonding layer; 16. Tensile layer. Detailed Description of the Embodiment

[0026] To make the invention purpose, features and advantages of the present application more obvious and understandable, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0027] The following will further elaborate on the present utility model with reference to the attached Figure 1 for a more detailed description.

[0028] The embodiment of the present application discloses a tear-resistant and high-temperature resistant cable. Refer to Figure 1, including a cable body 1, which comprises a conductor 11, an insulating layer 12, a high-temperature resistant layer 13, a shielding layer 14 and a tensile layer 16 arranged from the inside out. The outer wall of the conductor 11 is attached to the inner wall of the insulating layer 12, the outer wall of the insulating layer 12 is attached to the inner wall of the high-temperature resistant layer 13, the outer wall of the high-temperature resistant layer 13 is attached to the inner wall of the shielding layer 14, and the outer wall of the shielding layer 14 is attached to the inner wall of the tensile layer 16. The conductor 11 is the conductive part of the high-temperature resistant and fireproof cable. The insulating layer 12 is used to prevent current leakage. Through the setting of the high-temperature resistant layer 13, the cable can be used in a high-temperature environment, improving the applicable range of the cable. Through the setting of the shielding layer 14, the stability of signal transmission of the cable is improved. Through the setting of the tensile layer 16, the tensile property and toughness of the conductor 11 are improved, making the cable not easily break and effectively extending the service life of the cable.

[0029] Refer to Figure 1 , the conductor 11 includes a rubber rope 111 and a plurality of core wires 112. The plurality of core wires 112 are helically wound around the rubber rope 111 to form the conductor 11. In the embodiment of the present application, six core wires 112 are selected. The rubber rope 111 is incorporated into the core wires 112 to form the conductor 11. The rubber rope 111 has good tensile properties, so as to effectively improve the tensile property of the conductor 11. The core wires 112 are made of tinned copper material. The core wires 112 made of tinned copper are relatively soft. Compared with bare copper wires, they not only have good electrical conductivity, but also are not easily brittle and are not easily broken during the winding process with the rubber rope 111, improving the tensile property of the conductor 11.

[0030] Refer to Figure 1 , the insulating layer 12 includes an inner insulating part 121 and an outer insulating part 122. The inner wall of the inner insulating part 121 is attached to the conductor 11. The outer insulating part 122 is made of fluoroplastics. Fluoroplastics have excellent insulating properties and can be used in special environments such as high voltage and high frequency, and are not likely to cause current leakage or dielectric breakdown. The inner insulating part 121 is made of rubber material. Rubber can not only withstand high temperatures, but also has good toughness, improving the tensile property of the cable while ensuring the normal use of the cable.

[0031] Refer to Figure 1 , the high-temperature resistant layer 13 is made of polypropylene material. Polypropylene material is a thermoplastic resin with excellent properties, a colorless and translucent thermoplastic lightweight general-purpose plastic, with chemical resistance, heat resistance, electrical insulation and outstanding flexural fatigue strength, thus ensuring the high-temperature resistance and tensile strength of the cable.

[0032] Refer to Figure 1, the shielding layer 14 is made of woven glass fiber and carbon fiber. The glass fiber has the effect of shielding both long waves and short waves, and is a good shielding material that can effectively avoid electromagnetic interference to the cable. The carbon fiber can also be used as a shielding material, and both have insulation properties, effectively improving the performance of the cable.

[0033] Refer to Figure 1 , a bonding layer 15 is provided between the shielding layer 14 and the tensile layer 16. The bonding layer 15 is sprayed with polyimide glue. Polyimide glue is an organic high-temperature glue. While being heat-resistant, aging-resistant and insulating, it can make the shielding layer 14 better adhere to the high-temperature resistant layer 13, making the cable not easy to loosen and improving the tightness of the cable. The tensile layer 16 is made of polyurethane material. The polyurethane material has good elasticity and wear resistance, which can improve the tensile performance of the cable and its service life at the same time.

[0034] The above are all the preferred embodiments of this application, and do not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape and principle of this application shall be covered within the protection scope of this application.

Claims

1. An anti-tear and high-temperature resistant cable, characterized in that, It includes a cable body (1), and the cable body (1) includes a conductor (11), an insulating layer (12), a high-temperature resistant layer (13), a shielding layer (14), and a tensile layer (16) which are arranged from the inside to the outside. The outer wall of the conductor (11) is in contact with the inner wall of the insulating layer (12), the outer wall of the insulating layer (12) is in contact with the inner wall of the high-temperature resistant layer (13), the outer wall of the high-temperature resistant layer (13) is in contact with the inner wall of the shielding layer (14), and the outer wall of the shielding layer (14) is in contact with the inner wall of the tensile layer (16).

2. The tear-resistant and high-temperature resistant cable according to claim 1, characterized in that, The conductor (11) includes a rubber rope (111) and a plurality of core wires (112), and the plurality of core wires (112) are helically wound around the rubber rope (111) to form the conductor (11).

3. The tear-resistant and high-temperature resistant cable according to claim 2, characterized in that, The insulating layer (12) includes an inner insulating part (121) and an outer insulating part (122). The inner wall of the inner insulating part (121) is in contact with the conductor (11), the outer wall of the inner insulating part (121) is in contact with the inner wall of the outer insulating part (122), the inner insulating part (121) is made of rubber material, and the outer insulating part (122) is made of fluoroplastics.

4. The tear-resistant and high-temperature resistant cable according to claim 1, characterized in that, The high-temperature resistant layer (13) is made of polypropylene material.

5. The tear-resistant and high-temperature resistant cable according to claim 1, characterized in that The shielding layer (14) is made of woven glass fiber and carbon fiber.

6. The tear-resistant and high-temperature resistant cable according to claim 1, wherein The tensile layer (16) is made of polyurethane material.

7. The tear-resistant and high-temperature resistant cable according to claim 1, characterized in that, The core wire (112) is made of tinned copper material.

8. The tear-resistant and high-temperature resistant cable according to claim 1, wherein A bonding layer (15) is provided between the shielding layer (14) and the tensile layer (16), and the bonding layer (15) is sprayed with polyimide glue.

Images