Data copper cable with special structure

Abstract

According to the data copper cable with the special structure, the shielding layer is sleeved on the periphery of the stranded cable core, the inner protection layer is arranged on the periphery of the shielding layer, the stranded cable core is protected, meanwhile, interference signals are shielded, the armor layer is arranged on the periphery of the inner protection layer, and the shielding layer is arranged on the periphery of the armor layer. The armor layer is an armor tube which is spirally arranged on the periphery of the inner protection layer in a surrounding manner, and an outer protection layer is further arranged on the periphery of the armor layer; the armor layer is excellent in flexibility and excellent in compression resistance, and can ensure that the data copper cable has good compression resistance, so that the data copper cable can adapt to harsh environments such as outdoor environments and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a data copper cable with a special structure. Background Art

[0002] In the existing technology, with the vigorous promotion of optical fiber replacing copper, the wiring area of ​​data copper cables is getting smaller and smaller. Some special application fields have special requirements for the structural design of data copper cables. Among them, when used in outdoor scenarios, in addition to having high requirements for the performance of data copper cables, it is necessary to ensure that the data copper cables can be repeatedly retracted and reused. In relatively more severe conditions, data copper cables may be stepped on and crushed many times. In this process, data copper cables are prone to frequent suppression. When data copper cables are suppressed and other external interferences occur, the impedance and other properties of the data copper cables will be affected, and ultimately the data transmission quality of the data copper cables will be affected. Therefore, when data copper cables are operated in relatively more severe environments such as outdoors, it is necessary to ensure their pressure resistance and improve the applicability of data copper cables.

[0003] In view of this, overcoming the defects of the prior art is an urgent problem to be solved in the field of this technology. Utility Model Content

[0004] The problem solved by the utility model is how to provide a data copper cable with stronger pressure resistance, so as to ensure that the data copper cable can adapt to relatively harsher environments such as outdoor environments.

[0005] In a first aspect, a data copper cable with a special structure is provided, comprising: a twisted cable core 1, a shielding layer 2, an inner protective layer 3, an armor layer 4 and an outer protective layer 5, wherein:

[0006] The shielding layer 2 is sleeved on the periphery of the twisted cable core 1; the inner protective layer 3 is arranged on the periphery of the shielding layer 2;

[0007] The armor layer 4 is arranged on the periphery of the inner protective layer 3, and the armor layer 4 is arranged spirally around the periphery of the inner protective layer 3 to absorb external pressure;

[0008] An outer protective layer 5 is also arranged outside the armor layer 4 .

[0009] Preferably, an aramid yarn 6 is further provided between the armor layer 4 and the outer protective layer 5 .

[0010] Preferably, a water-blocking yarn 7 is further provided between the armor layer 4 and the inner protective layer 3 .

[0011] Preferably, the twisted cable core 1 specifically comprises: a first line pair 11, a second line pair 12, a third line pair 13 and a fourth line pair 14, wherein:

[0012] The first wire pair 11 , the second wire pair 12 , the third wire pair 13 and the fourth wire pair 14 are provided with twisting points at every first preset pitch.

[0013] Preferably, the first wire pair 11 includes a first copper wire 111 and a second copper wire 112, and the first copper wire 111 and the second copper wire 112 are provided with twisting points at every preset pitch;

[0014] The second wire pair 12 includes a third copper wire 121 and a fourth copper wire 122, and the third copper wire 121 and the fourth copper wire 122 are provided with twisting points at every preset pitch;

[0015] The third wire pair 13 includes a fifth copper wire 131 and a sixth copper wire 132, and the fifth copper wire 131 and the sixth copper wire 132 are provided with twisting points at every preset pitch;

[0016] The fourth wire pair 14 includes a seventh copper wire 141 and an eighth copper wire 142 , and the seventh copper wire 141 and the eighth copper wire 142 are provided with twisting points at every preset pitch.

[0017] Preferably, the shielding layer 2 includes a polyester tape layer 21 and an aluminum foil layer 22 , the polyester tape layer 21 is sleeved on the periphery of the twisted cable core 1 , and the aluminum foil layer 22 is arranged on the periphery of the polyester tape layer 21 .

[0018] Preferably, the shielding layer 2 further includes a braided layer 23 , and the braided layer 23 is arranged on the periphery of the aluminum foil layer 22 .

[0019] Preferably, a drainage line 8 is further provided between the polyester tape layer 21 and the aluminum foil layer 22 or between the aluminum foil layer 22 and the braided layer 23 .

[0020] Preferably, a first tear rope 9 is provided between the armor layer 4 and the outer protective layer 5;

[0021] A second tear cord 10 is disposed between the aluminum foil layer 22 and the braided layer 23 .

[0022] Preferably, the gap between the inner protective layer 3 and the armor layer 4 is less than 2 mm.

[0023] The utility model provides a data copper cable with a special structure. A shielding layer 2 is sleeved on the periphery of a twisted cable core 1, and an inner protective layer 3 is arranged on the periphery of the shielding layer 2. The twisted cable core 1 is protected and interference signals are shielded at the same time. An armor layer 4 is arranged on the periphery of the inner protective layer 3. The armor layer 4 is an armor tube spirally arranged on the periphery of the inner protective layer 3. An outer protective layer 5 is also arranged on the periphery of the armor layer 4. The armor layer 4 has excellent flexibility and excellent compressive resistance, which can ensure that the data copper cable itself has good compressive resistance and can adapt to harsher environments such as outdoor environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A cross-sectional view of a data copper cable with a special structure provided by an embodiment of the utility model;

[0026] Figure 2 A cross-sectional view of another data copper cable with a special structure provided by an embodiment of the utility model;

[0027] Figure 3 A cross-sectional view of another data copper cable with a special structure provided by an embodiment of the utility model;

[0028] Figure 4 A cross-sectional view of a data copper cable of another special structure provided by an embodiment of the utility model;

[0029] Figure 5 A cross-sectional view of a data copper cable of another special structure provided by an embodiment of the utility model;

[0030] Wherein, the accompanying drawings are marked as follows:

[0031] Twisted cable core 1; first wire pair 11; first copper conductor 111; second copper conductor 112; second wire pair 12; third copper conductor 121; fourth copper conductor 122; third wire pair 13; fifth copper conductor 131; sixth copper conductor 132; fourth wire pair 14; seventh copper conductor 141; eighth copper conductor 142; shielding layer 2; polyester tape layer 21; aluminum foil layer 22; braided layer 23; inner protective layer 3; armor layer 4; outer protective layer 5; aramid yarn 6; water-blocking yarn 7; drainage line 8; first rip cord 9; second rip cord 10. DETAILED DESCRIPTION

[0032] In the description of the present invention, the terms "inside", "outside", "longitudinal", "lateral", "upper", "lower", "top", "bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0033] The terms "first", "second", etc. in this utility model are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of this utility model, unless otherwise specified, "plurality" means two or more.

[0034] In the present invention, unless otherwise specified or limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. In addition, the term "coupling" can be a way of achieving electrical connection for signal transmission.

[0035] 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 of 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.

[0036] Embodiment 1:

[0037] In the existing technology, with the vigorous promotion of optical fiber replacing copper, the wiring area of ​​data copper cables is getting smaller and smaller. Some special application fields have special requirements for the structural design of data copper cables. Among them, when used in outdoor scenarios, in addition to having high requirements for the performance of data copper cables, it is necessary to ensure that the data copper cables can be repeatedly retracted and reused. In relatively more severe conditions, data copper cables may be stepped on and crushed many times. In this process, data copper cables are prone to frequent suppression. When data copper cables are suppressed and other external interferences occur, the impedance and other properties of the data copper cables will be affected, and ultimately the data transmission quality of the data copper cables will be affected. Therefore, when data copper cables are operated in relatively more severe environments such as outdoors, it is necessary to ensure their pressure resistance and improve the applicability of data copper cables.

[0038] The utility model embodiment provides a data copper cable with a special structure, such as Figure 1 As shown, it includes: a twisted cable core 1, a shielding layer 2, an inner protective layer 3, an armor layer 4 and an outer protective layer 5, wherein:

[0039] The shielding layer 2 is sleeved on the periphery of the twisted cable core 1; the inner protective layer 3 is arranged on the periphery of the shielding layer 2; the armor layer 4 is arranged on the periphery of the inner protective layer 3, and the armor layer 4 is spirally arranged on the periphery of the inner protective layer 3. The armor layer 4 can be an armor tube for absorbing external pressure; an outer protective layer 5 is also arranged on the periphery of the armor layer 4.

[0040] In this embodiment, the twisted cable core 1 may be formed by twisting a plurality of wire pairs; Figure 1 As shown, in this embodiment, it can be formed by twisting 4 pairs of wires, and each pair of wires can be formed by twisting at least two single wires; wherein each single wire includes a copper conductor and an insulating layer, and the copper conductor can be a 24AWG high-purity single pure copper conductor, and the insulating layer is arranged on the periphery of the copper conductor, and the insulating layer can be a high-density polyethylene insulating layer. The shielding layer 2 is used to separate the internal twisted cable core 1 from the outside world, to prevent the external signal from interfering with the internal signal of the twisted cable core 1, and to prevent the internal signal of the twisted cable core 1 from radiating outward and affecting the external signal. The inner protective layer 3 is the first internal protective layer; the armor layer 4 can be a spiral armor tube arranged on the periphery of the inner protective layer 3, which has excellent flexibility. When the data copper cable is pressed, the armor layer 4 can be pressed and deformed to absorb most of the pressure. After the pressure is removed, the armor layer 4 can basically return to its original state, so that the pressure resistance of the entire data copper cable can be guaranteed, so that the data copper cable can be used in harsh environments such as outdoors. In this embodiment, the gap between the inner protective layer 3 and the armor layer 4 is less than 2 mm.

[0041] Since the data copper cable may need to be repeatedly retracted and reused when used in harsh environments such as outdoors, or may be pulled by external forces, the data copper cable may be subject to a large amount of tension interference during this process. When the data copper cable itself has poor tensile strength, the relatively strong external tension may cause damage to the data copper cable itself. When encountering some extreme situations, such as being subjected to extremely strong tension, and the tension exceeds the elastic deformation range of the armor layer 4, the armor layer 4 itself will undergo irreversible deformation, causing damage to the data copper cable. Therefore, this embodiment also involves the following designs:

[0042] like Figure 2 As shown, aramid yarn 6 is further arranged between the armor layer 4 and the outer protective layer 5 .

[0043] The aramid yarn 6 in this embodiment may be a water-blocking aramid yarn. The aramid yarn 6 itself has a strong tensile strength, and the water-blocking aramid yarn 6 can also effectively prevent moisture, thereby improving the applicability of the data copper cable when used in harsh conditions such as outdoors.

[0044] Since the data copper cable may be exposed to rain or water when used in harsh environments such as outdoors, the data copper cable itself needs to have a certain water-blocking performance to avoid damage caused by liquid erosion. Therefore, this embodiment also involves the following design.

[0045] like Figure 2 As shown, a water-blocking yarn 7 is further provided between the armor layer 4 and the inner protective layer 3 .

[0046] The water-blocking yarn 7 can prevent liquid from entering the inner protective layer 3 and is in contact with the shielding layer 2 and the twisted cable core 1, thereby significantly improving the waterproof performance of the data copper cable.

[0047] In this embodiment, the twisted cable core 1 is formed by twisting a plurality of wire pairs, and each wire pair is different, specifically involving the following designs:

[0048] like Figure 2 As shown, the twisted cable core 1 specifically includes: a first line pair 11, a second line pair 12, a third line pair 13 and a fourth line pair 14, wherein:

[0049] The first line pair 11, the second line pair 12, the third line pair 13 and the fourth line pair 14 are provided with twisting points at every first preset pitch. In actual production, they are twisted together once according to the first preset pitch to obtain the twisted cable core 1.

[0050] Among them, the first wire pair 11, the second wire pair 12, the third wire pair 13 and the fourth wire pair 14 are all twisted by at least two single wires, and the lengths of the four wire pairs can be consistent, wherein different wire pairs are twisted in the S direction according to the chromatographic order and different process pitches, and then the first wire pair 11, the second wire pair 12, the third wire pair 13 and the fourth wire pair 14 are twisted together according to the process of the first preset pitch, wherein the first preset pitch is set by the personnel in this field according to the actual situation, and in this embodiment, the first preset pitch can be 100mm. Wherein the twisting together once according to the first preset pitch is: the four wire pairs are twisted together once from the beginning to the end, and the four wire pairs are twisted together once every distance of the first preset pitch.

[0051] It should be noted that, in the present embodiment, the twisted cable core 1 may be a Category 5e cable core, or may be a twisted cable core 1 with a Category 6 cable core or a Category 6e cable core shielding structure according to the needs of network cabling.

[0052] like Figure 3 As shown, the first wire pair 11 includes a first copper wire 111 and a second copper wire 112, and the first copper wire 111 and the second copper wire 112 are provided with twisting points at every preset pitch.

[0053] like Figure 3As shown, the second wire pair 12 includes a third copper wire 121 and a fourth copper wire 122, and the third copper wire 121 and the fourth copper wire 122 are provided with twisting points at every preset pitch.

[0054] like Figure 3 As shown, the third wire pair 13 includes a fifth copper wire 131 and a sixth copper wire 132 , and the fifth copper wire 131 and the sixth copper wire 132 are provided with twisting points at every preset pitch.

[0055] like Figure 3 As shown, the fourth wire pair 14 includes a seventh copper wire 141 and an eighth copper wire 142 , and the seventh copper wire 141 and the eighth copper wire 142 are provided with twisting points at every preset pitch.

[0056] The preset pitches of the first line pair 11, the second line pair 12, the third line pair 13 and the fourth line pair 14 can be different, and the corresponding preset pitches of the line pairs are set by those skilled in the art. In this embodiment, the preset pitch can be 12 mm to 18 mm, and the preset pitch can be preferably selected within the range of 12 mm to 18 mm.

[0057] In this embodiment, the conductor in a single copper wire can be a high-purity solid copper conductor, which is formed by twisting multiple bonded conductors; in this embodiment, the conductor can be 0.2 mm*7 strands.

[0058] In this embodiment, the combination of the first copper wire 111 and the second copper wire 112, the combination of the third copper wire 121 and the fourth copper wire 122, the combination of the fifth copper wire 131 and the sixth copper wire 132, and the combination of the seventh copper wire 141 and the eighth copper wire 142 need to be combined in a color spectrum order. In this embodiment, when there are four wire pairs, the combination of the four wire pairs can be: a combination of white and white-blue, a combination of white and white-orange, a combination of white and white-green, and a combination of white and white-brown.

[0059] In this embodiment, since it is necessary to ensure that the data copper wire itself can block external signal interference, and also to ensure that its own signal does not interfere too much with external signals, the shielding layer 2 in this embodiment includes the following design:

[0060] like Figure 4 As shown, the shielding layer 2 includes a polyester tape layer 21 and an aluminum foil layer 22 . The polyester tape layer 21 is sleeved on the periphery of the twisted cable core 1 , and the aluminum foil layer 22 is arranged on the periphery of the polyester tape layer 21 .

[0061] When the shielding layer 2 is actually manufactured, the polyester tape layer 21 and the aluminum foil layer 22 outside the twisted cable core 1 can usually be installed at one time.

[0062] Considering that when the data copper cable with the shielding layer 2 is used in an outdoor environment, it may be necessary to frequently pick up and put down the data copper cable, or to curl and stack the data copper cable, resulting in the stacking of the aluminum foil layer 22 of the shielding layer 2 in the data copper cable, and the stacked aluminum foil layer 22 may produce corresponding gaps, which cannot play a role in signal shielding. External signals or the signals of the data copper cable itself may interfere through the gaps. In order to avoid the above situation, this embodiment also involves the following designs:

[0063] like Figure 4 As shown, the shielding layer 2 further includes a braided layer 23 , and the braided layer 23 is arranged on the periphery of the aluminum foil layer 22 .

[0064] In this embodiment, the braided layer 23 can be obtained by braiding tinned copper wires on the periphery of the aluminum foil layer 22, the aluminum foil layer 22 and the braided layer 23 are in close contact, and soft PVC or TPU is extruded on the periphery of the braided layer 23 as the inner protective layer 3. The braided layer 23 is used for secondary shielding protection on the basis of the aluminum foil layer 22, and when the stacked aluminum foil layers 22 generate corresponding gaps, the braided layer 23 can shield the position at the gap.

[0065] It is worth mentioning that if Category 6 cable core or Category 6a cable core is used, in order to ensure the shielding effect of the data copper cable during repeated wiring, the shielding layer 2 includes an aluminum foil layer 22 and a braided layer 23, and the insulation layer is changed from the solid core insulation of the Category 5e cable core to foaming process insulation. The central skeleton can be omitted, thereby reducing the cable core diameter, increasing flexibility and ensuring transmission performance.

[0066] like Figure 5 As shown, a drainage line 8 is further provided between the polyester tape layer 21 and the aluminum foil layer 22 or between the aluminum foil layer 22 and the braided layer 23 .

[0067] like Figure 5 As shown, a first tear rope 9 is arranged between the armor layer 4 and the outer protective layer 5 ; and a second tear rope 10 is arranged between the aluminum foil layer 22 and the braided layer 23 .

[0068] In this embodiment, the first tear rope 9 can be exposed at the tail end of the entire data copper cable, and the outer protective layer 5 can be peeled off by tearing the first tear rope 9, so as to inspect or repair the inside of the outer protective layer 5; the second tear rope 10 can be exposed at the tail end of the entire data copper cable, and the inner protective layer 3 can be peeled off by tearing the second tear rope 10, so as to inspect or repair the inside of the inner protective layer 3.

[0069] Embodiment 2:

[0070] Based on Example 1, this example provides a manufacturing process of a data copper cable with a special structure in an actual scenario and the selection of materials for each component, as follows:

[0071] The data copper cable structure with special structure provided by the utility model comprises: a twisted cable core 1 of a Category 5e double-shielded cable, a shielding layer 2 is arranged outside the twisted cable core 1, an inner protective layer 3 is arranged outside the shielding layer 2, a water-blocking yarn 7 and an armor layer 4 are arranged outside the inner protective layer 3, a high-strength aramid yarn 6 is arranged outside the armor layer 4, and an outer protective layer 5 is arranged outside the aramid yarn 6.

[0072] In the actual production process, the twisted cable core 1 includes: a 24AWG high-purity single pure copper conductor, and a high-density polyethylene insulation layer is extruded outside the copper conductor to form a series of copper wires. Every two copper wires are twisted into multiple pairs according to the color sequence of white and white-blue, white and white-orange, white and white-green, and white and white-brown and different process pitches, and the four pairs are twisted into a twisted cable core 1 according to the process parameters such as the cabling pitch. The process in the inner protective layer 3 includes: the polyester tape layer 21 and the aluminum foil layer 22 outside the twisted cable core 1 are installed at one time, and a braided layer 23 is woven with tinned copper wire outside the aluminum foil layer 22 to enhance the shielding effect. The aluminum foil layer 22 is in close contact with the braided layer 23; the braided layer 23 is extruded with super soft PVC or TPU as an inner sheath.

[0073] Among them, when the ambient temperature is between -20 degrees Celsius and 60 degrees Celsius, the outer protective layer 5 and the inner protective layer 3 are made of LSZH material; when the ambient temperature is between -40 degrees Celsius and 75 degrees Celsius, the outer protective layer 5 and the inner protective layer 3 are made of TPU material.

[0074] The twisted cable core 1 is a Category 5e cable core, which can be made into a Category 6 cable core or a Category 6e shielded cable core according to the needs of network wiring. The shielding structure of the Category 5e cable core can be designed as F / UTP, and the insulating material can be solid HDPE.

[0075] If it is designed as a Category 6 cable core or a Category 6a cable core, in order to ensure the shielding effect of the cable during repeated wiring, the shielding layer 2 is designed as a single pair of aluminum foil layers 22 and a braided layer 23, and the insulation layer is changed from a solid core insulation layer of Category 5e to a foaming process insulation layer. The central skeleton may not be used, thereby reducing the diameter of the twisted cable core 1, increasing flexibility, and ensuring transmission performance.

[0076] Among them, the reason for selecting a double-layer shielding layer 2 such as an aluminum foil layer 22 and a braided layer 23 is that the cable structure of this embodiment needs to be repeatedly wired and repeatedly reeled. In order to ensure the shielding effect and prevent the aluminum foil from becoming loose at the overlapping part during repeated use, a braided layer 23 is specially added as the shielding layer 2 to ensure that the aluminum foil layer 22 is still tightly wrapped during repeated retraction and release, thereby ensuring that the impedance and return loss performance are not deteriorated.

[0077] Outside the inner protective layer 3, a flexible armor tube with a stainless steel wire spiral is provided as the armor layer 4 to increase the pressure resistance and maintain flexibility; wherein the gap between the inner protective layer and the armor tube is less than 2 mm;

[0078] High modulus waterproof aramid yarn 6 is evenly placed outside the armor layer 4 to enhance the tensile strength of the cable and effectively prevent moisture.

[0079] The aramid yarn 6 is provided with an outer protective layer, and the outer protective layer should be made of soft TPU material with excellent temperature performance according to different use environments.

[0080] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A data copper cable with a special structure, characterized in that: include: A twisted cable core (1), a shielding layer (2), an inner protective layer (3), an armor layer (4) and an outer protective layer (5), wherein: The shielding layer (2) is sleeved on the periphery of the twisted cable core (1); the inner protective layer (3) is arranged on the periphery of the shielding layer (2); The armor layer (4) is arranged on the periphery of the inner protective layer (3), and the armor layer (4) is arranged spirally around the periphery of the inner protective layer (3) to absorb external pressure; An outer protective layer (5) is also provided on the periphery of the armor layer (4).

2. The data copper cable with special structure according to claim 1, characterized in that: Aramid yarn (6) is also arranged between the armor layer (4) and the outer protective layer (5).

3. The data copper cable with special structure according to claim 1, characterized in that: A water-blocking yarn (7) is also provided between the armor layer (4) and the inner protective layer (3).

4. The data copper cable with special structure according to claim 1, characterized in that: The twisted cable core (1) specifically comprises: a first line pair (11), a second line pair (12), a third line pair (13) and a fourth line pair (14), wherein: The first wire pair (11), the second wire pair (12), the third wire pair (13) and the fourth wire pair (14) are provided with twisting points at every first preset pitch.

5. The data copper cable with special structure according to claim 4 is characterized in that: The first wire pair (11) comprises a first copper wire (111) and a second copper wire (112), wherein the first copper wire (111) and the second copper wire (112) are provided with twisting points at every preset pitch; The second wire pair (12) comprises a third copper wire (121) and a fourth copper wire (122), wherein the third copper wire (121) and the fourth copper wire (122) are provided with twisting points at every preset pitch; The third wire pair (13) comprises a fifth copper wire (131) and a sixth copper wire (132), wherein the fifth copper wire (131) and the sixth copper wire (132) are provided with twisting points at every preset pitch; The fourth wire pair (14) comprises a seventh copper wire (141) and an eighth copper wire (142), wherein the seventh copper wire (141) and the eighth copper wire (142) are provided with twisting points at every preset pitch.

6. The data copper cable with special structure according to claim 1, characterized in that: The shielding layer (2) comprises a polyester tape layer (21) and an aluminum foil layer (22); the polyester tape layer (21) is sleeved on the periphery of the twisted cable core (1), and the aluminum foil layer (22) is arranged on the periphery of the polyester tape layer (21).

7. The data copper cable with special structure according to claim 6, characterized in that: The shielding layer (2) further comprises a braided layer (23), wherein the braided layer (23) is arranged on the periphery of the aluminum foil layer (22).

8. The data copper cable with special structure according to claim 7, characterized in that: A drainage line (8) is also provided between the polyester tape layer (21) and the aluminum foil layer (22) or between the aluminum foil layer (22) and the braided layer (23).

9. The data copper cable with special structure according to claim 7, characterized in that: A first tear rope (9) is provided between the armor layer (4) and the outer protective layer (5); A second tear cord (10) is provided between the aluminum foil layer (22) and the braided layer (23).

10. The data copper cable with special structure according to any one of claims 1 to 9, characterized in that: The gap between the inner protective layer (3) and the armor layer (4) is less than 2 mm.

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