A high and low temperature resistant signal cable

Abstract

The utility model relates to the technical field of communication cables or conductors, and discloses a high and low temperature resistant signal cable, comprising three cable bodies, the outer surfaces of the three cable bodies are all covered with cable insulation layers, the outer surfaces of the three cable bodies are covered with cable winding layers, fillers are arranged between the cable insulation layers and the cable winding layers, the outer surface of the cable winding layer is provided with a high and low temperature resistant mechanism, the high and low temperature resistant mechanism can prevent the cable body from being affected by excessively high or low temperatures and thus affecting signal transmission, the outer surface of the high and low temperature resistant mechanism is provided with a protective mechanism, the protective mechanism can protect the cable body and thus prevent the signal cable from being damaged due to special circumstances, in this way, the signal cable can work normally under the low temperature of high-cold frozen soil or the high temperature of summer in hot areas, thereby improving the transmission efficiency and quality of the signal cable and at the same time improving the service life of the signal cable.

Description

Technical Field

[0001] The utility model relates to the technical field of communication cables or conductors, in particular to a high and low temperature resistant signal cable. Background Art

[0002] The existing signal cable, whose conductor is made of a conductive metal material, is a signal transmission tool. Generally, the signal transmitted by the signal cable is very small. In order to avoid interference to the signal, the signal cable has a shielding layer on the outside. The shielding layer of the wrapped conductor is generally a conductive cloth, a woven copper mesh or copper foil (aluminum). The shielding layer needs to be grounded. External interference signals can be introduced into the ground by this layer to prevent interference signals from entering the inner conductor and interfering with it while reducing the loss of the transmission signal. In the construction of the national railway network, railway signal cables are widely used, and are also widely used in rail transit construction. They are an indispensable cable product for high-speed railway and rail transit construction. Due to the expansion of the railway signal cable market capacity, the traditional railway signal cable market size is expected to maintain an annual consumption of about 30 million kilometers.

[0003] my country has a vast territory, complex geographical conditions and climate, and many lines have to pass through high-altitude frozen areas. For northern my country, such as Ningxia and Heilongjiang, due to the influence of geographical factors, and the signal cable is used to transmit signals, the current generated by the traditional cable for a long time will generate heat, which will have a certain impact on the transmission of cable signals, resulting in a significant decrease in the transmission speed and quality of the signal cable, and also reducing the service life of the signal cable. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a high and low temperature resistant signal cable, which has the function of enabling the signal cable to have both high temperature resistance and low temperature characteristics, so that the signal cable can work normally in the low temperature of high-altitude frozen soil or the high temperature of summer in hot areas, thereby improving the transmission efficiency and quality of the signal cable and increasing the service life of the signal cable.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high and low temperature resistant signal cable, comprising three cable bodies, the outer surfaces of the three cable bodies are all covered with cable insulation layers, and the outer surfaces of the three cable bodies are covered with cable winding layers;

[0008] Wherein, a filler is arranged between the cable insulation layer and the cable winding layer;

[0009] Among them, the outer surface of the cable winding layer is provided with a high and low temperature resistant mechanism, which can prevent the cable body from being affected by excessively high or low temperatures, thereby affecting signal transmission;

[0010] Among them, a protective mechanism is arranged on the outer surface of the high and low temperature resistant mechanism, and the protective mechanism can protect the cable body so as to prevent the signal cable from being damaged due to special circumstances.

[0011] Preferably, the high and low temperature resistant mechanism comprises a cable cooling layer, and the cable cooling layer is sleeved on the outer surface of the cable winding layer;

[0012] Wherein, a cooling ring groove is provided inside the cable cooling layer.

[0013] Preferably, a coolant is provided inside the cooling ring groove;

[0014] Wherein, the outer surface of the cable cooling layer is covered with a cable thermal insulation layer.

[0015] Preferably, the protective mechanism comprises a cable shielding layer, and the cable shielding layer is sleeved on the outer surface of the cable insulation layer.

[0016] Preferably, the outer surface of the cable shielding layer is covered with a cable flame retardant layer.

[0017] Preferably, the outer surface of the cable flame retardant layer is covered with a cable sheath layer;

[0018] Wherein, the outer surface of the cable sheath layer is provided with an anti-bite layer.

[0019] (III) Beneficial effects

[0020] Compared with the prior art, the utility model provides a high and low temperature resistant signal cable, which has the following

[0021] Beneficial effects:

[0022] (1) The high and low temperature resistant signal cable can absorb heat when the temperature of the signal cable is too high in a high temperature environment. The coolant inside the cooling ring groove can absorb the heat, thereby ensuring that the cable body will not be affected by the high temperature, avoiding the cable body from affecting signal transmission due to the high temperature. At the same time, the cable insulation layer can block the temperature. The cable insulation layer can not only block the high temperature, but also the low temperature can be blocked by the cable insulation layer, so that the low temperature cannot affect the cable body, and the problem that the cable body will be affected by the lower temperature is avoided. The signal cable can have both high temperature resistance and low temperature resistance characteristics, so that the signal cable can work normally in the low temperature of high-altitude frozen soil or the high temperature of summer in hot areas, thereby improving the transmission efficiency and quality of the signal cable and increasing the service life of the signal cable.

[0023] (2) The high and low temperature resistant signal cable can prevent the internal structure from being damaged through the cable shielding layer. At the same time, the cable shielding layer can also improve the overall mechanical properties of the signal cable. The cable flame retardant layer can prevent the signal cable from being burned in the event of a fire. The cable sheath layer can withstand high-strength metal impact and cutting. It has very high tensile strength and can withstand long-term repeated bending. The anti-gnawing layer can prevent the signal cable from being bitten by rodents such as mice, so that the signal cable will not be destroyed in unexpected situations, further improving the service life of the signal cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of a high and low temperature resistant signal cable of the utility model;

[0025] Figure 2 for Figure 1 A magnified schematic diagram of point A;

[0026] Figure 3 This is a schematic diagram of the cross-sectional connection structure of the signal cable of the utility model.

[0027] In the figure: 1. Cable body; 2. Cable insulation layer; 3. Filler; 4. Cable winding layer; 5. Cable cooling layer; 6. Cooling ring groove; 7. Coolant; 8. Cable insulation layer; 9. Cable shielding layer; 10. Cable flame retardant layer; 11. Cable sheath layer; 12. Anti-bite layer. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figures 1 to 3The utility model provides a new technical solution: a high and low temperature resistant signal cable, comprising three cable bodies 1, the outer surfaces of the three cable bodies 1 are all sleeved with a cable insulation layer 2, the outer surfaces of the three cable bodies 1 are sleeved with a cable winding layer 4, a filler 3 is arranged between the cable insulation layer 2 and the cable winding layer 4, the outer surface of the cable winding layer 4 is provided with a high and low temperature resistant mechanism, the high and low temperature resistant mechanism can prevent the cable body 1 from being affected by excessively high or low temperatures and thus affecting signal transmission, the outer surface of the high and low temperature resistant mechanism is provided with a protective mechanism, the protective mechanism can protect the cable body 1 to prevent the signal cable from being damaged due to special circumstances, the high and low temperature resistant mechanism comprises a cable cooling layer 5, the cable cooling layer 5 is sleeved on the outer surface of the cable winding layer 4, a cooling ring groove 6 is provided inside the cable cooling layer 5, a coolant 7 is arranged inside the cooling ring groove 6, the outer surface of the cable cooling layer 5 is sleeved with a cooling ring groove 6, a coolant 7 is arranged inside the cooling ring groove 6, A cable insulation layer 8 is provided. When it starts working, when the temperature of the signal cable is too high in a high temperature environment, the coolant 7 inside the cooling ring groove 6 can absorb the heat, thereby ensuring that the cable body 1 will not be affected by the high temperature, avoiding the cable body 1 from affecting the signal transmission due to the high temperature. At the same time, the cable insulation layer 8 can block the temperature. The cable insulation layer 8 can not only block the high temperature, but also the low temperature can be blocked by the cable insulation layer 8, so that the low temperature cannot affect the cable body 1, and the problem that the cable body 1 will be affected by the lower temperature is avoided. In this way, the signal cable can have both high temperature resistance and low temperature resistance, so that the signal cable can work normally in the low temperature of high-altitude frozen soil or the high temperature of summer in hot areas, thereby improving the transmission efficiency and quality of the signal cable, and at the same time improving the service life of the signal cable.

[0030] The protection mechanism includes a cable shielding layer 9, which is sleeved on the outer surface of the cable insulation layer 8. The outer surface of the cable shielding layer 9 is sleeved with a cable flame retardant layer 10, the outer surface of the cable flame retardant layer 10 is sleeved with a cable sheath layer 11, and the outer surface of the cable sheath layer 11 is sleeved with an anti-bite layer 12. When starting work, the cable shielding layer 9 can prevent the internal structure from being damaged. At the same time, the cable shielding layer 9 will also improve the overall mechanical properties of the signal cable. The cable flame retardant layer 10 can prevent the signal cable from being burned in the event of a fire. The cable sheath layer 11 can withstand high-intensity metal impact and cutting, has very high tensile strength, and can also withstand long-term repeated bending. The anti-bite layer 12 can prevent the signal cable from being bitten by rodents such as mice. In this way, the signal cable can be prevented from being destroyed in unexpected situations, thereby further improving the service life of the signal cable.

[0031] Working principle: When starting to work, when the temperature of the signal cable is too high due to the high temperature environment, the coolant 7 inside the cooling ring groove 6 can absorb the heat, thereby ensuring that the cable body 1 will not be affected by the high temperature, avoiding the cable body 1 from affecting the signal transmission due to the high temperature. At the same time, the cable insulation layer 8 can block the temperature. The cable insulation layer 8 can not only block the high temperature, but also the low temperature can be blocked by the cable insulation layer 8, so that the low temperature cannot affect the cable body 1, and also avoids the problem that the cable body 1 will be affected by the lower temperature.

[0032] When starting work, the cable shielding layer 9 can prevent the internal structure from being damaged. At the same time, the cable shielding layer 9 will also improve the overall mechanical properties of the signal cable. The cable flame retardant layer 10 can prevent the signal cable from being burned in the event of a fire. The cable sheath layer 11 can withstand high-intensity metal impact and cutting, has very high tensile strength, and can also withstand long-term repeated bending. The anti-bite layer 12 can prevent the signal cable from being bitten by rodents such as mice.

[0033] 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 and low temperature resistant signal cable, comprising three cable bodies (1), characterized in that: The outer surfaces of the three cable bodies (1) are all covered with a cable insulation layer (2), and the outer surfaces of the three cable bodies (1) are covered with a cable winding layer (4); Wherein, a filler (3) is provided between the cable insulation layer (2) and the cable winding layer (4); The outer surface of the cable winding layer (4) is provided with a high and low temperature resistant mechanism, which can prevent the cable body (1) from being affected by excessively high or low temperatures, thereby affecting signal transmission; The outer surface of the high and low temperature resistant structure is provided with a protective structure, which can protect the cable body (1) and prevent the signal cable from being damaged due to special circumstances.

2. The high and low temperature resistant signal cable according to claim 1, characterized in that: The high and low temperature resistant mechanism comprises a cable cooling layer (5), and the cable cooling layer (5) is sleeved on the outer surface of the cable winding layer (4); A cooling ring groove (6) is provided inside the cable cooling layer (5).

3. The high and low temperature resistant signal cable according to claim 2, characterized in that: A cooling liquid (7) is arranged inside the cooling ring groove (6); The outer surface of the cable cooling layer (5) is covered with a cable thermal insulation layer (8).

4. The high and low temperature resistant signal cable according to claim 1, characterized in that: The protection mechanism comprises a cable shielding layer (9), and the cable shielding layer (9) is sleeved on the outer surface of the cable thermal insulation layer (8).

5. The high and low temperature resistant signal cable according to claim 4, characterized in that: The outer surface of the cable shielding layer (9) is sheathed with a cable flame retardant layer (10).

6. The high and low temperature resistant signal cable according to claim 5, characterized in that: The outer surface of the cable flame retardant layer (10) is covered with a cable sheath layer (11); The outer surface of the cable sheath layer (11) is covered with an anti-bite layer (12).

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