High-temperature-resistant cable structure

Abstract

The utility model relates to the technical field of high-temperature-resistant cables, and discloses a high-temperature-resistant cable structure, which comprises a wear-resistant outer layer and four cables, cable fixing layers are wrapped on the outer surfaces of the four cables, the cable fixing layers are made of Teflon with high-temperature-resistant characteristics, four strands of copper wires which are wound and twisted together are arranged in each cable, and the wear-resistant outer layer is arranged on the wear-resistant outer layer. The high-temperature-resistant cable structure comprises a cable, the outer surface of the cable is wrapped with a first flame-retardant layer used for preventing temperature rise and combustion of the internal cable, the first flame-retardant layer is a ceramic silicone rubber layer, and the outer surface of the first flame-retardant layer is provided with a U-shaped strip fixing layer. When a short-circuit fire occurs, the fire does not continuously burn along the trend of the cable, thereby preventing the fire from continuously spreading and causing a secondary accident after the cable is on fire due to self heating, and improving the safety of the cable in use at the same time.

Description

Technical Field

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

[0002] With the continuous expansion of China's power industry, data communication industry, urban rail transit industry, automobile industry and shipbuilding industry, the demand for cables has also increased rapidly, and the requirements for cables have also become higher and higher to meet the needs of the market. Cables are required to have high strength, high tensile strength and high temperature resistance, and also need to have good insulation performance, otherwise the safety of the cables at work cannot be guaranteed, and danger is prone to occur, and the life of the cables will be greatly reduced. Cables are usually rope-like cables made of several or several groups of wires twisted together. Each group of wires is insulated from each other and often twisted around a center, and the entire outside is wrapped with a highly insulating covering layer. They are mostly erected in the air or installed underground or underwater for telecommunications or power transmission.

[0003] In remote mountainous areas, power transmission is not like the underground laying method in cities, but still uses telegraph poles to transmit cables overhead. In this case, the cables are directly exposed to sunlight. Since the surface sheath is mostly black, the overall temperature of the cable can easily rise, causing damage to the internal core wire. At the same time, the cable itself will generate a certain amount of heat during transmission. When the cable temperature is too high, the transmission rate will be reduced or transmission failures will occur. In severe cases, spontaneous combustion may occur. After the fire, it may continue to burn along the direction of the cable, posing a huge safety hazard. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a high-temperature resistant cable structure, which has the advantages of high temperature resistance, effective heat dissipation, and not easy to burn. It solves the problem that when the cable temperature is too high, the transmission rate will be reduced, transmission failures will occur, and in serious cases, spontaneous combustion may occur. After the fire, it may continue to burn along the direction of the cable, posing a huge safety hazard.

[0005] In order to achieve the above-mentioned purpose of high temperature resistance, effective heat dissipation and non-flammability, the utility model provides the following technical solutions: a high temperature resistant cable structure, including a wear-resistant outer layer and four cables, the outer surfaces of the four cables are wrapped with a cable fixing layer, and the cable fixing layer is made of Teflon with high temperature resistance;

[0006] The cables are provided with four twisted copper wires, and the outer surface of the cables is wrapped with a first flame retardant layer to prevent the internal cables from heating up and burning.

[0007] The first flame retardant layer is a ceramic silicone rubber layer, a U-shaped strip fixing layer is arranged on the outer surface of the first flame retardant layer, and a plurality of heat dissipation U-shaped support strips for heat dissipation and buffering are fixedly connected to the outer surface of the U-shaped strip fixing layer;

[0008] Among them, the heat dissipation U-shaped support bar is made of aluminum sheet, and multiple heat dissipation U-shaped support bars are evenly arranged in a circular array.

[0009] Preferably, the outer surface of the heat dissipating U-shaped support bar is provided with a hexagonal insulation layer, the material of the hexagonal insulation layer is radiation cross-linked ethylene-tetrafluoroethylene copolymer with certain corrosion resistance, and the gap between the heat dissipating U-shaped support bar and the hexagonal insulation layer is filled with an anti-corrosion filling layer.

[0010] Preferably, the anti-corrosion material of the anti-corrosion filling layer is polyvinyl chloride, a heat sink fixing layer is arranged on the outer surface of the hexagonal insulating layer, and the gap between the hexagonal insulating layer and the heat sink fixing layer forms six flame retardant wire filling cavities, each of the six flame retardant wire filling cavities is provided with a plurality of flame retardant and heat-resistant wires for preventing continuous combustion.

[0011] Preferably, the outer surface of the heat sink fixing layer is provided with a plurality of heat sink aluminum fins, and the plurality of heat sink aluminum fins are evenly arranged in a circular array. The outer surface of the heat sink aluminum fins is provided with a waterproof lining layer for improving waterproofness, and the waterproof lining layer is a chloroprene rubber material layer.

[0012] Preferably, an insect-proof layer is arranged in the gap between the heat dissipating aluminum sheet and the waterproof inner lining layer, and insect-proof herbs are arranged in the insect-proof layer. The wear-resistant outer layer is sleeved on the outer surface of the waterproof inner lining layer, and the material of the wear-resistant outer layer is polytetrafluoroethylene.

[0013] Compared with the prior art, the utility model provides a high temperature resistant cable structure, which has the following beneficial effects:

[0014] The high-temperature resistant cable structure, by providing a first flame-retardant layer, can prevent the fire from continuing to burn along the direction of the cable when the cable itself generates excessive heat during transmission and a short circuit and fire occurs, thereby avoiding the fire from continuing to spread after the cable catches fire due to its own heating and causing a secondary accident, and at the same time improving the safety of the cable when in use.

[0015] The high temperature resistant cable structure can evenly and effectively dissipate the heat generated when the cable transmits data by setting up multiple heat dissipation U-shaped support bars that are evenly arranged in a ring array, thereby avoiding problems such as slow transmission rate and transmission failure caused by untimely heat dissipation of the cable. The flame retardant and heat-resistant wire can prevent the fire from continuing to burn along the direction of the cable when the cable itself generates too much heat during transmission and a short circuit occurs, thereby avoiding the fire from continuing to spread after the cable short circuits and catches fire, thereby further improving safety.

[0016] The high temperature resistant cable structure has an insect-proof layer made of insect-proof herbs. When the insect-proof layer is subjected to the heat emitted by the cable, it will emit an odor that inhibits insects from approaching, thereby avoiding the cable from being gnawed by insects and causing a short circuit, further improving safety and ensuring normal transmission of the cable.

[0017] The high temperature resistant cable structure has a wear-resistant outer layer made of polytetrafluoroethylene, which is resistant to acids, alkalis and various organic solvents. It also has good wear resistance and can effectively prevent damage caused by external wear during cable use, thereby improving the stability of cable data transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the high temperature resistant cable of the utility model;

[0020] Figure 3 For this utility model Figure 1 Enlarged schematic diagram at point A in the middle.

[0021] 1 and four 9s, the outer surface of the four 9s is wrapped with 14, 14 is made of Teflon with high temperature resistance, 9 is provided with four strands of 10 twisted together, the outer surface of 9 is wrapped with a layer of 11 for preventing the internal cable from heating up and burning, 11 is a ceramic silicone rubber layer, 11 is provided with 8 on the outer surface, 8 is fixedly connected with multiple 12s for heat dissipation and buffering on the outer surface, 12 is made of aluminum sheets with good heat dissipation, multiple 12s are evenly arranged in a ring array, 12 is provided with 6 on the outer surface, 6 is made of radiation cross-linked with certain corrosion resistance Ethylene-tetrafluoroethylene copolymer, the gap between 12 and 6 is filled with 13, the anti-corrosion material of 13 is polyvinyl chloride, 3 is arranged on the outer surface of 6, six 15 are formed in the gap between 6 and 3, and multiple 7 for preventing continuous combustion are arranged in the six 15, the outer surface of 3 is provided with multiple 4, and the multiple 4 are evenly arranged in a ring array, the outer surface of 4 is provided with 2 for improving waterproofness, 2 is a layer of chloroprene rubber material, 5 is arranged in the gap between 4 and 2, and insect repellent herbs are arranged in 5, 1 is set on the outer surface of 2, and the material of 1 is polytetrafluoroethylene,

[0022] By setting the material of 1 to polytetrafluoroethylene, this material is resistant to acid, alkali, and various organic solvents, and also has good wear resistance, which can effectively prevent the damage caused by external wear during the use of 9, thereby improving the stability of data transmission of 9. By setting 11, when 9 generates too much heat during transmission and a short circuit occurs and a fire occurs, the fire will not continue to burn along the direction of the cable, thereby avoiding the fire from continuing to spread after 9 catches fire due to its own heat, causing a secondary accident, and at the same time improving the safety of the cable when in use.

[0023] By setting multiple 12 in a ring array and evenly arranged, the heat emitted when 9 transmits data can be evenly and effectively dissipated, avoiding the problems of slow transmission rate and transmission failure caused by untimely heat dissipation of 9. By setting 7, when 9 generates too much heat during transmission and a short circuit occurs, the fire will not continue to burn along the direction of the cable, avoiding the fire to continue to spread after the short circuit occurs and cause a secondary accident, further improving the safety. By setting 5 as an insect-proof herb, when 5 is affected by the heat emitted by 9, it will emit a smell that inhibits insects from approaching, thereby avoiding the situation where 9 is bitten by insects and a short circuit occurs, further improving the safety and ensuring the normal transmission of 9.

[0024] 1 and four 9, the outer surfaces of the four 9 are wrapped with 14, and the material of 14 is made of Teflon with high temperature resistance;

[0025] Among them, four strands 10 are twisted together in each of 9, and the outer surface of 9 is wrapped with a layer 11 for preventing the internal cable from heating up and burning;

[0026] Among them, 11 is a ceramic silicone rubber layer, 8 is arranged on the outer surface of 11, and a plurality of 12 for heat dissipation and buffering are fixedly connected to the outer surface of 8;

[0027] Among them, 12 is made of aluminum sheet with good heat dissipation, and multiple 12 are evenly arranged in a circular array.

[0028] The outer surface of 12 is provided with 6, and the material of 6 is radiation cross-linked ethylene-tetrafluoroethylene copolymer with certain corrosion resistance, and the gap between 12 and 6 is filled with 13.

[0029] The anti-corrosion material of 13 is polyvinyl chloride, 3 is arranged on the outer surface of 6, and the gap between 6 and 3 forms six 15, and each of the six 15 is provided with a plurality of 7 for preventing continuous combustion.

[0030] The outer surface of 3 is provided with a plurality of 4, and the plurality of 4 are evenly arranged in a circular array. The outer surface of 4 is provided with 2 for improving waterproofness, and 2 is a chloroprene rubber material layer.

[0031] 5 is arranged in the gap between 4 and 2, and insect-proof herbs are arranged in 5. 1 is sleeved on the outer surface of 2, and the material of 1 is polytetrafluoroethylene.

[0032] In the figure: 1. Wear-resistant outer layer; 2. Waterproof lining layer; 3. Heat sink fixing layer; 4. Heat sink aluminum sheet; 5. Insect-proof layer; 6. Hexagonal insulation layer; 7. Flame-retardant and heat-resistant wire; 8. U-shaped bar fixing layer; 9. Cable; 10. Copper wire; 11. First flame-retardant layer; 12. Heat dissipation U-shaped support bar; 13. Anti-corrosion filling layer; 14. Cable fixing layer; 15. Flame-retardant wire filling cavity. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0034] See also Figure 1-3The utility model provides a new technical solution: a high temperature resistant cable structure, including a wear-resistant outer layer 1 and four cables 9, the outer surfaces of the four cables 9 are wrapped with a cable fixing layer 14, the cable fixing layer 14 is made of Teflon with high temperature resistance, four strands of copper wires 10 twisted together are arranged in the cables 9, the outer surface of the cables 9 is wrapped with a first flame retardant layer 11 for preventing the internal cables from heating up and burning, the first flame retardant layer 11 is a ceramic silicone rubber layer, the outer surface of the first flame retardant layer 11 is provided with a U-shaped strip fixing layer 8, the outer surface of the U-shaped strip fixing layer 8 is fixedly connected with a plurality of heat dissipation U-shaped support strips 12 for heat dissipation and buffering, the heat dissipation U-shaped support strips 12 are made of aluminum sheets, and the plurality of heat dissipation U-shaped support strips 12 are evenly arranged in a ring array, and the outer surface of the heat dissipation U-shaped support strips 12 is provided with a hexagonal insulating layer 6, and the hexagonal insulating layer 6 is made of irradiated cross-linked ethylene with certain corrosion resistance. -tetrafluoroethylene copolymer, the gaps between the heat dissipation U-shaped support bar 12 and the hexagonal insulating layer 6 are filled with an anti-corrosion filling layer 13, the anti-corrosion material of the anti-corrosion filling layer 13 is polyvinyl chloride, a heat sink fixing layer 3 is arranged on the outer surface of the hexagonal insulating layer 6, and the gaps between the hexagonal insulating layer 6 and the heat sink fixing layer 3 form six flame-retardant wire filling cavities 15, and the six flame-retardant wire filling cavities 15 are each provided with a plurality of flame-retardant heat-resistant wires 7 for preventing continuous combustion, a plurality of heat dissipation aluminum sheets 4 are arranged on the outer surface of the heat sink fixing layer 3, and the plurality of heat dissipation aluminum sheets 4 are evenly arranged in a circular array, and a waterproof lining layer 2 for improving waterproofness is provided on the outer surface of the heat dissipation aluminum sheets 4, and the waterproof lining layer 2 is a layer of chloroprene rubber material, an insect-proof layer 5 is arranged in the gap between the heat dissipation aluminum sheets 4 and the waterproof lining layer 2, and insect-proof herbs are arranged in the insect-proof layer 5, and a wear-resistant outer layer 1 is sleeved on the outer surface of the waterproof lining layer 2, and the material of the wear-resistant outer layer 1 is polytetrafluoroethylene.

[0035] Furthermore, by setting the material of the wear-resistant outer layer 1 to polytetrafluoroethylene, this material has the characteristics of acid and alkali resistance, resistance to various organic solvents, and also has good wear resistance, which can effectively prevent the cable 9 from being damaged by external wear during use, thereby improving the stability of data transmission of the cable 9. By setting the first flame retardant layer 11, when the cable 9 generates too much heat during transmission and a short circuit occurs and a fire occurs, the fire will not continue to burn along the direction of the cable, thereby avoiding the fire from continuing to spread after the cable 9 catches fire due to its own heating, causing a secondary accident, and at the same time improving the safety of the cable when in use.

[0036] Furthermore, by setting up multiple heat dissipation U-shaped support bars 12 and evenly arranging them in a circular array, the heat emitted when the cable 9 transmits data can be evenly and effectively dissipated, thereby avoiding problems such as slow transmission rate and transmission failure caused by untimely heat dissipation of the cable 9. By setting up the flame-retardant and heat-resistant wire 7, when the cable 9 generates too much heat during transmission and a short circuit occurs, the fire will not continue to burn along the direction of the cable, thereby avoiding the fire from continuing to spread after the cable 9 short-circuit catches fire, causing a secondary accident, further improving safety. By setting up the insect-proof layer 5 as an insect-proof herb, when the insect-proof layer 5 is subjected to the heat emitted by the cable 9, it will emit an odor that inhibits insects from approaching, thereby avoiding the cable 9 from being gnawed by insects and causing a short circuit, further improving safety and ensuring the normal transmission of the cable 9.

[0037] Working principle: The wear-resistant outer layer 1 is made of polytetrafluoroethylene, which is resistant to acids, alkalis and various organic solvents, and also has good wear resistance. It can effectively prevent the cable 9 from being damaged by external wear during use, thereby improving the stability of data transmission of the cable 9. The first flame retardant layer 11 can prevent the cable 9 from overheating itself during transmission and causing a short circuit and fire. The fire will not continue to burn along the direction of the cable, thereby avoiding the fire from continuing to spread after the cable 9 catches fire due to its own heating, thereby causing a secondary accident. At the same time, the safety of the cable during use is improved. The multiple heat dissipation U-shaped support bars 12 are evenly arranged in a ring array, thereby dissipating the heat when the cable 9 transmits data. The heat generated can be evenly and effectively dissipated, avoiding the problems of slow transmission rate and transmission failure caused by untimely heat dissipation of cable 9. The flame-retardant and heat-resistant wire 7 can prevent the fire from continuing to burn along the direction of the cable when the cable 9 generates too much heat during transmission and a short circuit occurs. The fire is prevented from continuing to spread after the cable 9 short-circuit catches fire, causing a secondary accident, further improving the safety. The insect-proof layer 5 is an insect-proof herb, which can emit an odor that inhibits insects from approaching when the insect-proof layer 5 is subjected to the heat emitted by the cable 9, thereby avoiding the cable 9 from being gnawed by insects and causing a short circuit, further improving the safety and ensuring the normal transmission of the cable 9.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high temperature resistant cable structure, comprising a wear resistant outer layer (1) and four cables (9), characterized in that: The outer surfaces of the four cables (9) are wrapped with a cable fixing layer (14), and the cable fixing layer (14) is made of Teflon with high temperature resistance. Wherein, four twisted copper wires (10) are arranged inside the cable (9), and the outer surface of the cable (9) is wrapped with a first flame retardant layer (11) for preventing the internal cable from heating up and burning; The first flame retardant layer (11) is a ceramic silicone rubber layer, a U-shaped strip fixing layer (8) is provided on the outer surface of the first flame retardant layer (11), and a plurality of heat dissipation U-shaped support strips (12) for heat dissipation and buffering are fixedly connected to the outer surface of the U-shaped strip fixing layer (8); The heat dissipation U-shaped support strip (12) is made of aluminum sheet, and a plurality of heat dissipation U-shaped support strips (12) are evenly arranged in a circular array.

2. A high temperature resistant cable structure according to claim 1, characterized in that: The outer surface of the heat dissipating U-shaped support bar (12) is provided with a hexagonal insulating layer (6), the material of the hexagonal insulating layer (6) is a radiation cross-linked ethylene-tetrafluoroethylene copolymer having a certain corrosion resistance, and the gap between the heat dissipating U-shaped support bar (12) and the hexagonal insulating layer (6) is filled with an anti-corrosion filling layer (13).

3. A high temperature resistant cable structure according to claim 2, characterized in that: The anti-corrosion material of the anti-corrosion filling layer (13) is polyvinyl chloride, a heat sink fixing layer (3) is arranged on the outer surface of the hexagonal insulating layer (6), and the gap between the hexagonal insulating layer (6) and the heat sink fixing layer (3) forms six flame retardant wire filling cavities (15), and a plurality of flame retardant and heat-resistant wires (7) for preventing continuous combustion are arranged in each of the six flame retardant wire filling cavities (15).

4. A high temperature resistant cable structure according to claim 3, characterized in that: The outer surface of the heat sink fixing layer (3) is provided with a plurality of heat sink aluminum fins (4), the plurality of heat sink aluminum fins (4) are evenly arranged in a ring array, and the outer surface of the heat sink aluminum fins (4) is provided with a waterproof inner lining layer (2) for improving waterproofness, and the waterproof inner lining layer (2) is a chloroprene rubber material layer.

5. A high temperature resistant cable structure according to claim 4, characterized in that: An insect-proof layer (5) is arranged in the gap between the heat dissipation aluminum sheet (4) and the waterproof inner lining layer (2), and insect-proof herbs are arranged in the insect-proof layer (5). The wear-resistant outer layer (1) is sleeved on the outer surface of the waterproof inner lining layer (2), and the material of the wear-resistant outer layer (1) is polytetrafluoroethylene.

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