Temperature-difference-resistant high-speed train cable structure

Abstract

The utility model relates to the technical field of cables, and discloses a temperature-difference-resistant high-speed train cable structure, which solves the problems that the existing high-speed train cable is easy to damage in use and the service life of the cable is affected due to poor temperature-difference-resistant and protection effects, and comprises a high-speed train cable main body, the high-speed train cable body comprises four wires, first insulating layers are fixedly installed on the surfaces of the four wires, a second insulating layer is fixedly installed among the surfaces of the four first insulating layers, a first buffer layer is filled between the four first insulating layers and the second insulating layer, a reinforcing core is fixedly installed in the middle of the first buffer layer, and a second buffer layer is fixedly installed in the middle of the reinforcing core. A shielding layer is fixedly mounted on the surface of the second insulating layer, a protective layer is fixedly mounted on the surface of the shielding layer, and a first temperature difference resistant layer is fixedly mounted on the surface of the protective layer; the high-speed train cable has good temperature difference resistance and protection effect, and the service life of the cable is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to cable technical field, concretely is a kind of temperature difference resistant high-speed train cable structure. BACKGROUND

[0002] High-speed train needs a large amount of power support to run safely and smoothly;Cable, as a medium for power transmission, delivers electric energy from the power grid to the traction motor of high-speed train, providing continuous power for the train;This power supply method not only has high energy utilization rate, but also is environmentally friendly and low noise, which is the key to high-speed train running at high speed;High-speed train cable also undertakes the important task of signal transmission;The train communicates with ground signal through cable, realizes accurate control and scheduling of train;This signal transmission through cable can realize fast and accurate information transmission, thereby ensuring the safety and stability of high-speed rail operation;Specifically, the cable can transmit various signals, including train running status, position information, scheduling instructions, etc., to ensure that the train can respond to various instructions and changes in time during driving;However, the temperature difference resistance and protection effect of the existing high-speed train cable are not good, which causes the cable to be easily damaged during use, affecting its service life. SUMMARY

[0003] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a temperature difference resistant high-speed train cable structure, which effectively solves the problem of poor temperature difference resistance and protection effect of the existing high-speed train cable, which causes the cable to be easily damaged during use, affecting its service life.

[0004] To achieve the above purpose, the utility model provides the following technical scheme: a temperature difference resistant high-speed train cable structure, comprising a high-speed train cable main body, the high-speed train cable main body includes four wires, the surface of four wires is fixedly installed with first insulating layer, the surface between four first insulating layers is fixedly installed with second insulating layer, the first buffer layer is filled between four first insulating layers and second insulating layer, the middle part of first buffer layer is fixedly installed with reinforcing core, the surface of second insulating layer is fixedly installed with shielding layer, the surface of shielding layer is fixedly installed with protective layer, the surface of protective layer is fixedly installed with first temperature difference resistant layer, the surface of first temperature difference resistant layer is fixedly installed with second temperature difference resistant layer, the surface of second temperature difference resistant layer is fixedly installed with flame-retardant layer, the surface of flame-retardant layer is fixedly installed with isolation layer, the surface of isolation layer is fixedly installed with second buffer layer, the inside annular equidistance of second buffer layer is fixedly installed with a plurality of support skeletons, and the surface of second buffer layer is fixedly installed with wear-resistant layer.

[0005] Preferably, the wire is a tinned copper wire, the four first insulating layers are made of crosslinked polyethylene, the first buffer layer is composed of foam particles, the reinforcing core is made of aramid fiber material, and the second insulating layer is made of butyl rubber material.

[0006] Preferably, the shielding layer is woven by copper wire, the protective layer is made of polyethylene material, the first temperature difference resistant layer is aerogel layer, the second temperature difference resistant layer is asbestos layer, the flame retardant layer is made of ethylene-propylene rubber material, and the isolation layer is made of polytetrafluoroethylene material.

[0007] Preferably, the second buffer layer is made of micro powder silica gel, the plurality of support skeletons are all made of amir fiber, and the wear-resistant layer is made of chloroprene rubber.

[0008] Compared with the prior art, the high-speed train cable has the advantages that the conductor made of tinned copper wire can increase the oxidation resistance and corrosion resistance of the conductor, the insulation effect is increased through cooperation of the first insulation layer and the second insulation layer, so that electric leakage is avoided, the first insulation layer made of crosslinked polyethylene has stable electrical properties and mechanical properties in a wide temperature range, the pressure received by the high-speed train cable body can be buffered and protected through the first buffer layer and the second buffer layer, and the toughness is improved, the tensile capacity is improved through the reinforcing core and the support skeleton, the anti-interference capacity and electromagnetic compatibility of the cable are improved through the shielding layer,

[0009] The cable can be protected from damage from the external environment and the fire resistance of the cable is improved through cooperation of the protective layer, the first temperature difference resistant layer, the second temperature difference resistant layer and the flame retardant layer, the spread speed of the fire can be slowed down when the fire occurs, more time is obtained for rescue and escape, the influence of temperature change on the inside of the cable is effectively slowed down, and therefore the stability and service life of the cable are improved, the isolation protection is realized through the isolation layer, the wear-resistant effect is improved through the wear-resistant layer, and the surface wear is slowed down, so that the high-speed train cable has good temperature difference resistance and protection effect, and the service life of the cable is improved. BRIEF DESCRIPTION OF DRAWINGS

[0010] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with embodiments of the present application, and do not constitute a limitation on the present application.

[0011] In the drawings:

[0012] Fig. 1 It is a structural schematic view of the temperature difference resistant high-speed train cable of the present application.

[0013] Fig. 2 It is a sectional structural schematic view of the temperature difference resistant high-speed train cable of the present application.

[0014] In the figure: 1, high-speed train cable main body; 2, wire; 3, first insulation layer; 4, first buffer layer; pressure buffer; 5, second insulation layer; 6, shielding layer; 7, protective layer: high temperature resistant low temperature resistant flame retardant; 8, first temperature difference resistant layer; 9, second temperature difference resistant layer; 10, flame retardant layer; 11, isolation layer; 12, second buffer layer; 13, support framework; 14, wear-resistant layer; 15, reinforcing core. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to 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 the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0016] By Figs. 1-2 The utility model discloses a high-speed train cable main body 1, high-speed train cable main body 1 includes four wires 2, the surface of four wires 2 is fixedly installed with first insulation layer 3, the surface between four first insulation layers 3 is fixedly installed with second insulation layer 5, and the first buffer layer 4 is filled between four first insulation layers 3 and second insulation layer 5, and the middle part of first buffer layer 4 is fixedly installed with reinforcing core 15, the surface of second insulation layer 5 is fixedly installed with shielding layer 6, the surface of shielding layer 6 is fixedly installed with protective layer 7, the surface of protective layer 7 is fixedly installed with first temperature difference resistant layer 8, the surface of first temperature difference resistant layer 8 is fixedly installed with second temperature difference resistant layer 9, the surface of second temperature difference resistant layer 9 is fixedly installed with flame retardant layer 10, the surface of flame retardant layer 10 is fixedly installed with isolation layer 11, the surface of isolation layer 11 is fixedly installed with second buffer layer 12, and the inside annular equidistance of second buffer layer 12 is fixedly installed with a plurality of support frameworks 13, and the surface of second buffer layer 12 is fixedly installed with wear-resistant layer 14;The wire 2 is all tinned copper wire, four first insulation layers 3 are all made of crosslinking polyethylene, first buffer layer 4 is combined by foamed particle, reinforcing core 15 is made of aramid fiber material, and second insulation layer 5 is made of butyl rubber material;Shielding layer 6 is woven by copper wire, protective layer 7 is made of polyethylene material, first temperature difference resistant layer 8 is aerogel layer, second temperature difference resistant layer 9 is asbestos layer, flame retardant layer 10 is made of ethylene-propylene rubber material, and isolation layer 11 is made of polytetrafluoroethylene material;Second buffer layer 12 is made of micro powder silica gel, a plurality of support frameworks 13 are all made of amir fiber, and wear-resistant layer 14 is made of neoprene.

[0017] The conductor 2 made of tinned copper wire can increase the oxidation resistance and corrosion resistance of the conductor, increase the insulation effect through the cooperation of the first insulation layer 3 and the second insulation layer 5, avoid electric leakage, and the first insulation layer 3 made of cross-linked polyethylene has stable electrical properties and mechanical properties in a wide temperature range; the pressure received by the high-speed train cable main body 1 can be buffered and protected through the first buffer layer 4 and the second buffer layer 12, and the toughness is improved; the tensile capacity can be improved through the reinforcing core 15 and the support skeleton 13; the anti-interference ability and electromagnetic compatibility of the cable can be improved through the shielding layer 6;

[0018] The cable can be protected from the damage of the external environment and the fire resistance of the cable can be improved through the cooperation of the protective layer 7, the first temperature difference resistant layer 8, the second temperature difference resistant layer 9 and the flame retardant layer 10, the spread speed of the fire can be slowed down in the event of fire, more time is gained for rescue and escape, the influence of temperature change on the inside of the cable can be effectively slowed down, and the stability and service life of the cable are improved; the isolation layer 11 plays a role in isolation protection; the wear-resistant layer 14 can improve the wear-resistant effect and slow down the surface wear; the high-speed train cable has good temperature difference resistance and protection effect, and the service life of the cable is improved.

Claims

1. A temperature-difference-resistant high-speed train cable structure, comprising a high-speed train cable main body (1), characterized in that: The high-speed train cable body (1) includes four wires (2), the surface of the four wires (2) is fixedly installed with a first insulation layer (3), the surface of the four first insulation layers (3) is fixedly installed with a second insulation layer (5), the four first insulation layers (3) and the second insulation layer (5) are filled with a first buffer layer (4), the middle part of the first buffer layer (4) is fixedly installed with a reinforcing core (15), the surface of the second insulation layer (5) is fixedly installed with a shielding layer (6), the surface of the shielding layer (6) is fixedly installed with a protective layer (7), the surface of the protective layer (7) is fixedly installed with a first temperature difference resistant layer (8), the surface of the first temperature difference resistant layer (8) is fixedly installed with a second temperature difference resistant layer (9), the surface of the second temperature difference resistant layer (9) is fixedly installed with a flame-retardant layer (10), the surface of the flame-retardant layer (10) is fixedly installed with an isolation layer (11), the surface of the isolation layer (11) is fixedly installed with a second buffer layer (12), the inside of the second buffer layer (12) is fixedly installed with a plurality of support skeletons (13), and the surface of the second buffer layer (12) is fixedly installed with a wear-resistant layer (14).

2. The temperature-difference-resistant high-speed train cable structure according to claim 1, characterized in that: The wire (2) is a tinned copper wire, the four first insulation layers (3) are made of cross-linked polyethylene, the first buffer layer (4) is composed of foam particles, the reinforcing core (15) is made of aramid fiber material, and the second insulation layer (5) is made of butyl rubber material.

3. The temperature-difference-resistant high-speed train cable structure according to claim 1, characterized in that: The shielding layer (6) is woven by copper wire, the protective layer (7) is made of polyethylene material, the first temperature difference resistant layer (8) is an aerogel layer, the second temperature difference resistant layer (9) is an asbestos layer, the flame-retardant layer (10) is made of ethylene-propylene rubber material, and the isolation layer (11) is made of polytetrafluoroethylene material.

4. The temperature-difference-resistant high-speed train cable structure of claim 1, wherein: The second buffer layer (12) is made of micro powder silica gel, the plurality of support skeletons (13) are all made of amir fiber, and the wear-resistant layer (14) is made of neoprene.

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