A cable with good anti-aging performance

Abstract

The utility model relates to a cable with good anti-aging performance, which belongs to cable technology. The utility model comprises a conductor layer, and an insulating layer and a shielding layer which are sequentially wrapped on the conductor layer from the inside to the outside. A fireproof and corrosion-resistant composite layer is also wrapped on the shielding layer, and a sunscreen layer is wrapped on the fireproof and corrosion-resistant composite layer. An inner protective layer is arranged between the fireproof and corrosion-resistant composite layer and the shielding layer, and the material of the inner protective layer is polyurethane. An outer protective layer is arranged between the fireproof and corrosion-resistant composite layer and the sunscreen layer, and the material of the outer protective layer is polyethylene. The fireproof and corrosion-resistant composite layer comprises an anti-skid layer, a corrosion-resistant layer and a heat-insulating layer, and the anti-skid layer, the corrosion-resistant layer and the heat-insulating layer are sequentially arranged from the inside to the outside. The material of the anti-skid layer is silica gel, the material of the corrosion-resistant layer is a low-smoke halogen-free flame-retardant material, the material of the heat-insulating layer is graphene, the material of the insulating layer is polyvinyl chloride, and the material of the shielding layer is a tinned copper wire mesh. The utility model has strong sunscreen performance, good corrosion resistance, strong anti-aging ability and high practical value.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a cable with good anti-aging performance. Background Art

[0002] Cables are made of one or more mutually insulated conductors and an outer insulating protective layer. Cables are a general term for items such as optical cables and electrical cables. Cables have many uses, mainly used for control installation, connecting equipment, and transmitting electricity. They transmit electricity or information from one place to another. Cables are divided into power cables, control cables, etc. Elevator cables are a type of power cables, which are common and indispensable in daily life. The existing cables have average anti-aging capabilities and their service life is not long enough.

[0003] Based on the above technical problems, a Chinese utility model patent with publication number CN213988365U discloses a cable with good anti-aging performance, including a conductor, an inner protective layer is adhered and fixed to the outer end surface of the conductor, a filling layer is adhered and fixed to the outer end surface of the inner protective layer, an insulating layer is adhered and fixed to the outer end surface of the filling layer, a heat insulation layer is adhered and fixed to the outer end surface of the insulation layer, a shielding layer is adhered and fixed to the outer end surface of the heat insulation layer, an outer protective layer is adhered and fixed to the outer end surface of the shielding layer, a sunscreen layer is adhered and fixed to the outer end surface of the outer protective layer, the sunscreen layer is made of polyvinyl chloride, the shielding layer is woven from metal wire, the shielding layer is made of polyvinyl chloride material, the insulating layer is made of rubber, and the filling layer is made of glass fiber material. By using the conductor for fixing, the current is guided conveniently, the inner protective layer is used for protection, the conductor is protected conveniently for secondary protection, and the filling layer is used for fixing, which is convenient for fixing the conductor. The cable has the advantages of good anti-aging performance, good sunscreen performance and multi-layer protection.

[0004] However, the technical solution disclosed in the above patent does not provide sufficient improvement in the protection of the cable, nor does it provide sufficient improvement in its fire resistance and corrosion resistance. In the actual application of the cable, the cable is prone to corrosion in a humid environment, and its poor fire resistance during a fire is a problem that needs to be solved urgently. In view of this, the present application is filed. Utility Model Content

[0005] In order to overcome the technical defects of the prior art, the utility model provides a cable with good anti-aging performance, which has the effects of strong sun protection performance, good corrosion resistance and strong anti-aging ability.

[0006] The technical solution adopted by the utility model is: comprising a conductor layer, and an insulating layer and a shielding layer wrapped on the conductor layer in sequence from the inside to the outside. The conductor layer is used as a basic cable core structure for transmitting current and is made of a highly conductive material such as copper or aluminum, and has a certain degree of softness and bending resistance. An insulating layer and a shielding layer are arranged on the outside in sequence. The insulating layer is wrapped on the outside of the conductor to effectively isolate the conductor layer, prevent current leakage, and ensure the normal transmission of electric energy. The shielding layer is used to limit electric field and electromagnetic interference, effectively reduce the influence of the external magnetic field on the signal of the conductor layer, and ensure the stable transmission of the signal. The shielding layer is also wrapped with a fire-proof and corrosion-resistant composite layer, and a sun-proof layer is wrapped on the fire-proof and corrosion-resistant composite layer. The sun-proof layer is located on the outermost side and provides preliminary protection for the exposed parts to prevent the cable from being rapidly aged due to long-term exposure to sunlight. The fire-proof and corrosion-resistant composite layer is located inside the sun-proof layer and serves as a second line of protection. On the one hand, it is used to block high temperatures and has fire-proof properties. Even if a fire occurs and continuous burning occurs, a large amount of harmful gases will not be generated, and the safety is higher. On the other hand, it also has a certain corrosion resistance to prevent the cable from corrosion when it is damp, further improving the anti-aging performance of the present application.

[0007] Preferably, an inner protective layer is provided between the fireproof and corrosion-resistant composite layer and the shielding layer, and the material of the inner protective layer is polyurethane.

[0008] Preferably, an outer protective layer is provided between the fireproof and corrosion-resistant composite layer and the sun-proof layer. The material of the outer protective layer is polyethylene, which has good wear resistance and moisture resistance, is relatively environmentally friendly, and is easy to use.

[0009] Preferably, the fireproof and corrosion-resistant composite layer comprises an anti-slip layer, a corrosion-resistant layer and a heat-insulating layer, and the anti-slip layer, the corrosion-resistant layer and the heat-insulating layer are arranged in sequence from the inside to the outside.

[0010] Preferably, the anti-slip layer is made of silicone, and the corrosion-resistant layer is made of low-smoke halogen-free flame retardant material, which not only has excellent flame retardant properties but also can resist chemical corrosion. In the case of high temperature in a fire, it produces low smoke and low-toxicity gas to improve safety. The thermal insulation layer is made of graphene, which has the advantages of high thermal conductivity, good chemical stability, high mechanical strength, etc. It can effectively reduce the cable temperature and improve the safety performance of the cable.

[0011] Preferably, the insulating layer is made of polyvinyl chloride, which has high breakdown strength, low dielectric loss, good resistance to resin discharge, corona and partial discharge, and has better insulation effect.

[0012] Preferably, the shielding layer is made of tinned copper wire mesh, which has high resistance to longitudinal tension, makes the cable soft, and has better oxidation resistance than traditional copper wire shielding.

[0013] Preferably, the sunscreen layer is made of fluoroplastic, which has excellent weather resistance and chemical corrosion resistance, so that the utility model can be used for a long time in harsh outdoor environments.

[0014] The beneficial effects of the utility model are as follows: the present application provides higher-intensity protection by arranging a fire-proof and corrosion-resistant composite layer and a sun-proof layer on the outside of the shielding layer. The sun-proof layer is located on the outermost side, providing preliminary protection for the exposed part to prevent the cable from rapid aging due to long-term exposure to sunlight. The fire-proof and corrosion-resistant composite layer is located inside the sun-proof layer, serving as a second line of protection to block high temperatures and provide fire-proof performance. It has higher safety and certain corrosion resistance, which prevents the cable from corrosion when it is damp, further improving the anti-aging performance of the present application. The utility model has strong sun-proof performance, good corrosion resistance, strong anti-aging ability, and high practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] Figure 2 It is a cross-sectional view of the utility model.

[0017] Figure 3 It is a cross-sectional view of the fireproof and corrosion-resistant composite layer in the utility model.

[0018] Figure 4 It is a schematic diagram of the structure of the utility model after partial peeling.

[0019] Explanation of the accompanying drawings: In the figure: 1, conductor layer; 2, insulation layer; 3, shielding layer; 4, inner protective layer; 5, fire-proof and corrosion-resistant composite layer; 501, anti-slip layer; 502, corrosion-resistant layer; 503, thermal insulation layer; 6, outer protective layer; 7, sun protection layer. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings:

[0021] like Figure 1-Figure 4 As shown, this embodiment provides a cable with good anti-aging performance, including a conductor layer 1, and an insulating layer 2 and a shielding layer 3 wrapped around the conductor layer 1 from the inside to the outside, the shielding layer 3 is also wrapped with a fire-proof and corrosion-resistant composite layer 5, and the fire-proof and corrosion-resistant composite layer 5 is wrapped with a sun protection layer 7.

[0022] In the utility model, the conductor layer 1 is used as a basic cable core structure for transmitting current. It is made of highly conductive materials such as copper or aluminum and has certain softness and bending resistance. An insulating layer 2 and a shielding layer 3 are arranged on the outside in sequence. The insulating layer 2 is wrapped around the outside of the conductor to effectively isolate the conductor layer 1 to prevent current leakage and ensure the normal transmission of electric energy. The shielding layer 3 is used to limit electric fields and electromagnetic interference, effectively reduce the influence of external magnetic fields on the signals of the conductor layer 1, and ensure stable transmission of signals.

[0023] On this basis, the present application further arranges a fireproof and corrosion-resistant composite layer 5 and a sunscreen layer 7 on the outside of the shielding layer 3 for further protection, wherein the sunscreen layer 7 is located on the outermost side, providing preliminary protection for the exposed parts to prevent the cable from being rapidly aged due to long-term exposure to sunlight, and the fireproof and corrosion-resistant composite layer 5 is located inside the sunscreen layer 7, serving as a second line of protection. On the one hand, it is used to block high temperatures and have fire-proof properties. Even if a fire occurs and continuous burning occurs, a large amount of harmful gases will not be produced, and the safety is higher. On the other hand, it also has a certain corrosion resistance, which prevents the cable from corrosion when it is damp, further improving the anti-aging performance of the present application. Compared with existing cables, the cable structure proposed in the present application has strong sun protection performance, good corrosion resistance, strong anti-aging ability, and high practical value.

[0024] An inner protective layer 4 is arranged between the fireproof and corrosion-resistant composite layer 5 and the shielding layer 3 , and the material of the inner protective layer 4 is polyurethane.

[0025] An outer protective layer 6 is provided between the fireproof and corrosion-resistant composite layer 5 and the sunscreen layer 7. The outer protective layer 6 is made of polyethylene, has good wear resistance and moisture resistance, is relatively environmentally friendly, and is easy to use.

[0026] As a technical optimization solution of the utility model, the fireproof and corrosion-resistant composite layer 5 includes an anti-slip layer 501, a corrosion-resistant layer 502 and a heat-insulating layer 503, and the anti-slip layer 501, the corrosion-resistant layer 502 and the heat-insulating layer 503 are arranged in sequence from the inside to the outside.

[0027] The material of the anti-slip layer 501 is silicone, and the material of the corrosion-resistant layer 502 is low-smoke halogen-free flame retardant material, which not only has excellent flame retardant properties, but also can resist chemical corrosion. In the case of high temperature of fire, it produces low smoke and low-toxic gas to improve safety. The material of the thermal insulation layer 503 is graphene, which has the advantages of high thermal conductivity, good chemical stability, high mechanical strength, etc. It can effectively reduce the cable temperature and improve the safety performance of the cable.

[0028] The material of the insulating layer 2 is polyvinyl chloride, which has high breakdown strength, low dielectric loss, good resistance to resin discharge, corona and partial discharge, and has a better insulation effect.

[0029] The shielding layer 3 is made of tinned copper wire mesh, which has high longitudinal tensile resistance, soft cable and better oxidation resistance than traditional copper wire shielding.

[0030] The material of the sunscreen layer 7 is fluoroplastic, which has excellent weather resistance and chemical corrosion resistance, so that the utility model can be used for a long time in harsh outdoor environments.

[0031] The above shows and describes the basic principles, main features and advantages of the invention. Those skilled in the art should understand that the invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the invention. Without departing from the spirit and scope of the invention, the invention may have various changes and improvements, which shall fall within the scope of the invention to be protected. The scope of protection of the invention shall be defined by the attached claims and their equivalents.

Claims

1. A cable with good anti-aging performance, comprising a conductor layer (1), and an insulating layer (2) and a shielding layer (3) wrapped on the conductor layer (1) in sequence from the inside to the outside, characterized in that: The shielding layer (3) is also wrapped with a fireproof and corrosion-resistant composite layer (5), and the fireproof and corrosion-resistant composite layer (5) is wrapped with a sunscreen layer (7).

2. The cable with good anti-aging performance according to claim 1, characterized in that: An inner protective layer (4) is provided between the fireproof and corrosion-resistant composite layer (5) and the shielding layer (3), and the material of the inner protective layer (4) is polyurethane.

3. The cable with good anti-aging performance according to claim 1, characterized in that: An outer protective layer (6) is provided between the fireproof and corrosion-resistant composite layer (5) and the sunscreen layer (7), and the material of the outer protective layer (6) is polyethylene.

4. The cable with good anti-aging performance according to claim 1, characterized in that: The fireproof and corrosion-resistant composite layer (5) comprises an anti-slip layer (501), a corrosion-resistant layer (502), and a heat-insulating layer (503), wherein the anti-slip layer (501), the corrosion-resistant layer (502), and the heat-insulating layer (503) are arranged in sequence from the inside to the outside.

5. The cable with good anti-aging performance according to claim 4, characterized in that: The material of the anti-slip layer (501) is silica gel, the material of the corrosion-resistant layer (502) is low-smoke halogen-free flame-retardant material, and the material of the heat-insulating layer (503) is graphene.

6. The cable with good anti-aging performance according to claim 1, characterized in that: The material of the insulating layer (2) is polyvinyl chloride.

7. The cable with good anti-aging performance according to claim 1, characterized in that: The shielding layer (3) is made of tinned copper wire mesh.

8. The cable with good anti-aging performance according to claim 1, characterized in that: The material of the sun protection layer (7) is fluoroplastic.

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