Anti-interference flame-retardant cable

Abstract

The utility model discloses an anti-interference flame-retardant cable, which belongs to the technical field of cables and comprises a reinforcing core, a filling layer fixedly mounted on the outer surface of the reinforcing core, six insulating layers fixedly mounted on the inner wall of the filling layer, a conductor fixedly mounted on the inner wall of each insulating layer, and a shielding layer fixedly mounted on the outer surface of the filling layer. A reinforcing layer is fixedly mounted on the outer surface of the shielding layer, a waterproof layer is fixedly mounted on the outer surface of the reinforcing layer, a flame-retardant layer is fixedly mounted on the outer surface of the waterproof layer, and a protective layer is fixedly mounted on the outer surface of the flame-retardant layer. According to the anti-interference flame-retardant cable, interference of an external electromagnetic field can be effectively blocked through the shielding layer, radiation of signals of the anti-interference flame-retardant cable to the outside is reduced, the mechanical strength and stability of the cable can be improved, the cable has a good anti-interference structure, the cable is prevented from being interfered and influenced by the external environment in the using process, and the service life of the cable is prolonged. And the protective layer can be converted into a hard ceramic coating at high temperature, so that high-temperature damage is effectively resisted.

Description

Technical Field

[0001] This application belongs to the field of cable technology, and in particular relates to an anti-interference flame-retardant cable. Background Technology

[0002] Cables are an indispensable material in industrial and agricultural production and modern life. my country is the world's largest producer of wires and cables, and the cable industry occupies a very important position in my country's national economy. A cable is a general term for wires consisting of one or more mutually insulated conductors covered by a sealed sheath. They are mainly used in fields such as power transmission, telecommunication signal transmission, and data communication. Cables can be divided into many types according to their uses, structures, and materials, and are widely used in various environments and under various needs. They are one of the key components of modern social infrastructure.

[0003] A utility model patent with authorization announcement number CN206639603U discloses a cable, including an insulating separator sleeve. The inner side of the insulating separator sleeve is provided with a separator bracket. The separator bracket includes three partitions that are angled at 120 degrees to each other. The insulating separator sleeve has a peripheral cavity formed by the three partitions. A peripheral wire is provided in the peripheral cavity. The separator bracket includes a central circular strip connected to the three partitions. A central cavity is provided in the middle of the central circular strip. A central wire is provided in the central cavity. Both the peripheral wire and the central wire include a conductive core and a polyvinyl chloride insulation layer. The inner side of the insulating separator sleeve has two protruding strips at the position of each peripheral cavity. Both the protruding strips and the central circular strip abut against the peripheral wire.

[0004] Using the above technical solution, the insulation sleeve and the internal partition bracket work together to prevent short circuits with adjacent wires even if the insulation layer of the internal wires is damaged. However, the cable does not have a good anti-interference structure, making it susceptible to interference from the external environment during use. Furthermore, its flame retardant performance and durability are poor, resulting in low practicality.

[0005] Therefore, we propose an anti-interference flame-retardant cable to solve the above problems. Utility Model Content

[0006] The purpose of this application is to solve the problems in the prior art where cables do not have a good anti-interference structure, making them susceptible to interference from the external environment during use, and have poor flame retardant performance and durability, resulting in low practicality. Therefore, this application proposes an anti-interference flame retardant cable.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] An anti-interference flame-retardant cable includes a reinforcing core, a filling layer fixedly installed on the outer surface of the reinforcing core, six insulation layers fixedly installed on the inner wall of the filling layer, a conductor fixedly installed on the inner wall of each insulation layer, a shielding layer fixedly installed on the outer surface of the filling layer, a reinforcing layer fixedly installed on the outer surface of the shielding layer, a waterproof layer fixedly installed on the outer surface of the reinforcing layer, a flame-retardant layer fixedly installed on the outer surface of the waterproof layer, and a protective layer fixedly installed on the outer surface of the flame-retardant layer.

[0009] Preferably, the filler layer is made of polyethylene foam, and the insulation layer is made of ethylene propylene rubber.

[0010] Preferably, the conductor is made of copper and the shielding layer is made of aluminum foil.

[0011] Preferably, the reinforcing layer is made of vulcanized silicone rubber, and the waterproof layer is made of aluminum-polyethylene composite tape.

[0012] Preferably, the flame retardant layer is made of a composite flame retardant mainly composed of nitrogen and phosphorus, and the protective layer is made of ceramicized silicone rubber.

[0013] Preferably, the outer surface of the protective layer is provided with a marking layer, and the marking layer is made of silicone rubber.

[0014] In summary, the technical effects and advantages of this application are as follows: The addition of a reinforcing core increases the cable's strength and toughness. The reinforcing core is a high-performance non-metallic optical cable reinforcing core made of aramid fiber as the reinforcing material and resin as the matrix, formed through a unique multi-stage curing pultrusion process. Furthermore, modification through the embedding of liquid crystal polymers and a self-healing microcapsule system improves the product's toughness and strength, extending the cable's service life. The shielding layer, made of aluminum foil, effectively blocks external electromagnetic interference, reduces its own signal radiation, and enhances the cable's mechanical strength and stability, resulting in a cable with superior performance. The anti-interference structure prevents interference from the external environment during use. The protective layer is made of ceramicized silicone rubber, which can transform into a hard ceramic coating at high temperatures, effectively resisting high-temperature damage. The flame retardant layer is a composite flame retardant mainly composed of nitrogen and phosphorus. It does not contain halogens or use antimony oxide as a synergist. It can not only delay or stop the combustion process, but also form a dense carbon barrier on the material surface, effectively isolating oxygen and heat, inhibiting flame spread, and reducing the generation of smoke and toxic gases. This results in good flame retardant performance and resistance, achieving a highly practical effect. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the protective layer of this utility model;

[0016] Figure 2 This is a three-dimensional structural diagram of the reinforcing core of this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the filling layer of this utility model;

[0018] Figure 4 This is a top view of the conductor structure of this utility model.

[0019] In the diagram: 1. Reinforcing core; 2. Filling layer; 3. Insulation layer; 4. Conductor; 5. Shielding layer; 6. Reinforcing layer; 7. Waterproof layer; 8. Flame retardant layer; 9. Protective layer; 10. Identification layer. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figure 1-4 An anti-interference flame-retardant cable includes a reinforcing core 1, a filling layer 2 fixedly installed on the outer surface of the reinforcing core 1, and six insulation layers 3 fixedly installed on the inner wall of the filling layer 2. The filling layer 2 is made of polyethylene foam, and the insulation layer 3 is made of ethylene propylene rubber. The filling layer 2 is made of polyethylene resin as the main body, with the addition of foaming agent, crosslinking agent and other additives. It has good mechanical properties, toughness, flexibility and abrasion resistance. Ethylene propylene rubber, as a synthetic rubber, is mainly copolymerized from ethylene and propylene. It has low temperature resistance, oxidation resistance, tear resistance and good elasticity.

[0022] Each insulation layer 3 has a conductor 4 fixedly installed on its inner wall, and a shielding layer 5 is fixedly installed on the outer surface of the filling layer 2. The conductor 4 is made of copper, and the shielding layer 5 is made of aluminum foil. The conductor 4 is made of copper, which has excellent conductivity. The aluminum foil can effectively block the interference of external electromagnetic fields, reduce the radiation of its own signal to the outside world, and improve the mechanical strength and stability of the cable.

[0023] A reinforcing layer 6 is fixedly installed on the outer surface of the shielding layer 5, and a waterproof layer 7 is fixedly installed on the outer surface of the reinforcing layer 6. The reinforcing layer 6 is made of vulcanized silicone rubber, and the waterproof layer 7 is made of aluminum-polyethylene composite tape. The reinforcing layer 6 is made of vulcanized silicone rubber, which greatly improves the flexibility and elasticity of silicone rubber after vulcanization. In addition, steel wire is wrapped around its surface, which makes it more resistant to external impact, compression and tensile strength. The waterproof layer 7 is an aluminum-polyethylene composite tape, which is a composite material that combines the barrier properties of aluminum metal and the toughness and sealing properties of polyethylene, so as to protect the cable insulation from moisture and maintain the stability of electrical performance.

[0024] A flame-retardant layer 8 is fixedly installed on the outer surface of the waterproof layer 7, and a protective layer 9 is fixedly installed on the outer surface of the flame-retardant layer 8. The flame-retardant layer 8 is a composite flame retardant mainly composed of nitrogen and phosphorus, and the protective layer 9 is made of ceramicized silicone rubber. The flame-retardant layer 8 is a composite flame retardant mainly composed of nitrogen and phosphorus. It does not contain halogens and can not only delay or prevent the combustion process, but also form a dense carbon barrier on the material surface, effectively isolating oxygen and heat, inhibiting the spread of flames, and reducing the generation of smoke and toxic gases, thereby increasing the flame retardancy of the cable. The protective layer 9 is ceramicized silicone rubber. Ceramicized silicone rubber can be transformed into a hard ceramic coating at high temperatures, effectively resisting high-temperature damage, thereby increasing the high-temperature resistance of the cable and effectively resisting high-temperature damage.

[0025] The outer surface of the protective layer 9 is provided with a marking layer 10. The marking layer 10 is made of silicone rubber, which has excellent flexibility and temperature resistance. It can also be dyed to achieve the marking purpose, thus facilitating the marking of cables.

[0026] The working principle of this utility model is as follows: During use, the reinforcing core 1 increases the strength and toughness of the cable. The reinforcing core 1 is a high-performance non-metallic optical cable reinforcing core 1 made of aramid fiber as the reinforcing material and resin as the matrix, formed through a unique multi-stage curing pultrusion process. Furthermore, through modification with embedded liquid crystal polymers and a self-healing microcapsule system, the product's toughness and strength are improved, extending the cable's service life. The shielding layer 5 is made of aluminum foil, which effectively blocks interference from external electromagnetic fields and reduces its own signal radiation to the outside world. It also improves the cable's mechanical strength and stability, giving the cable a better anti-interference structure and preventing interference from the external environment during use. The filling layer 2 is made primarily of polyethylene resin, with added foaming agents, crosslinking agents, and other additives. It possesses good mechanical properties, toughness, flexibility, and abrasion resistance. The insulation layer 3 is made of ethylene propylene rubber, mainly copolymerized from ethylene and propylene. It has high volume resistivity and dielectric constant, which allows it to effectively isolate current and prevent unintentional current leakage, thus ensuring the safety and stability of the circuit. It also has low-temperature resistance, oxidation resistance, tear resistance, and good... The elastic reinforcing layer 6 is made of vulcanized silicone rubber. Vulcanization significantly improves the flexibility and elasticity of the silicone rubber, and its surface is also wrapped with steel wire, making it highly resistant to external impacts, compression, and tension. The waterproof layer 7 is an aluminum-polyethylene composite tape, a composite material combining the barrier properties of aluminum with the toughness and sealing properties of polyethylene, protecting the cable insulation from moisture and maintaining stable electrical performance. The protective layer 9 is made of ceramicized silicone rubber, which transforms into a hard ceramic coating at high temperatures, effectively resisting high-temperature damage and providing insulation. The flame retardant layer 8 is a composite flame retardant mainly composed of nitrogen and phosphorus. It does not contain halogens or use antimony oxide as a synergist. It can not only delay or stop the combustion process, but also form a dense carbon barrier on the material surface, effectively isolating oxygen and heat, inhibiting the spread of flames, and reducing the generation of smoke and toxic gases, resulting in good flame retardant performance and resistance. The marking layer 10 is made of silicone rubber, which has excellent flexibility and temperature change resistance. It can also be dyed for marking purposes, making it convenient to mark the cable and making the anti-interference flame retardant cable more practical.

[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An anti-interference flame-retardant cable, comprising a reinforcing core (1), characterized in that: A filling layer (2) is fixedly installed on the outer surface of the reinforcing core (1). Six insulating layers (3) are fixedly installed on the inner wall of the filling layer (2). A conductor (4) is fixedly installed on the inner wall of each insulating layer (3). A shielding layer (5) is fixedly installed on the outer surface of the filling layer (2). A reinforcing layer (6) is fixedly installed on the outer surface of the shielding layer (5). A waterproof layer (7) is fixedly installed on the outer surface of the reinforcing layer (6). A flame-retardant layer (8) is fixedly installed on the outer surface of the waterproof layer (7). A protective layer (9) is fixedly installed on the outer surface of the flame-retardant layer (8).

2. The anti-interference flame-retardant cable according to claim 1, characterized in that: The filling layer (2) is made of polyethylene foam, and the insulation layer (3) is made of ethylene propylene rubber.

3. The anti-interference flame-retardant cable according to claim 1, characterized in that: The conductor (4) is made of copper, and the shielding layer (5) is made of aluminum foil.

4. The anti-interference flame-retardant cable according to claim 1, characterized in that: The reinforcing layer (6) is made of vulcanized silicone rubber, and the waterproof layer (7) is made of aluminum-polyethylene composite tape.

5. The anti-interference flame-retardant cable according to claim 1, characterized in that: The protective layer (9) is made of ceramicized silicone rubber.

6. The anti-interference flame-retardant cable according to claim 1, characterized in that: The outer surface of the protective layer (9) is provided with a marking layer (10), and the marking layer (10) is made of silicone rubber.

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