Base station data transmission cable

Abstract

The present invention relates to a base station data transmission cable, comprising an inner conductor and a first insulating layer arranged outside the inner conductor, wherein a foam layer is arranged between the inner conductor and the first insulating layer of at least part of the base station data transmission cable. The base station data transmission cable provided by the present invention has a foam layer arranged between the inner conductor and the first insulating layer of the base station data transmission cable. Since the elasticity of the foam layer is greater than that of the first insulating layer, especially when the foam layer is a sponge layer, its compressible space is larger, when the base station data transmission cable is bent, the first insulating layer first compresses the foam layer to deform to form a bend, and when a position is bent to a certain extent, the first insulating layer will be stretched and deformed on the outside, thereby greatly reducing the degree of stretching deformation of the base station data transmission cable when it is bent, which is more conducive to use in an environment with relatively low temperature.

Description

Technical Field

[0001] The invention belongs to the technical field of data transmission cables, and in particular relates to a base station data transmission cable. Background Art

[0002] With the development of communication technology, the construction of base stations has also increased. Among them, data transmission cables, as a medium for data transmission, play a role that cannot be underestimated. Once a problem occurs in the data transmission cable, it will directly affect the transmission of base station data. During the wiring process, the data transmission cable must be bent. During the bending process, the insulation layer of the data transmission cable will be stretched and deformed on the outside, causing damage to the insulation layer. Generally, since the insulating material itself has a certain ductility, the damage generally does not affect the insulation protection of the data transmission cable. However, in some special cases, such as when the temperature is relatively low, the ductility of the insulation layer will deteriorate, causing the insulation layer to be stretched and deformed. The damage to the insulation layer will increase, and even cracks will occur when the bending is large, thereby affecting the insulation protection performance of the insulation layer. Therefore, people are also constantly researching new low-temperature resistant materials to solve this problem, and have achieved good technical results, but they still cannot meet people's higher needs. Summary of the invention

[0003] In view of the problems existing in the above-mentioned prior art, the present invention provides a base station data transmission cable to solve the above-mentioned technical problems.

[0004] In order to achieve the above-mentioned object of the invention, a technical solution provided by the present invention is as follows:

[0005] A base station data transmission cable comprises an inner conductor and a first insulating layer arranged outside the inner conductor, wherein a foam layer is arranged between the inner conductor and the first insulating layer of at least part of the base station data transmission cable.

[0006] Preferably, the foam layer is a sponge layer.

[0007] Preferably, the inner conductor includes a conductor core, a second insulating layer arranged outside the conductor core, and a shielding layer arranged outside the second insulating layer.

[0008] Preferably, the conductor core and the second insulating layer form a combined wire monomer, two of the combined wire monomers are intertwined to form a twisted pair, and the shielding layer is arranged outside the twisted pair.

[0009] Preferably, the twisted pair and the shielding layer form a conductive monomer, the inner conductor includes multiple groups of conductive monomers, the multiple groups of conductive monomers form a composite body, and the foam layer is located between the composite body and the first insulating layer.

[0010] Preferably, the gaps between the multiple groups of conductive monomers are filled with an insulating filling body, the center of the filling body coincides with the center of the first insulating layer, and a reinforcing strip is provided at the center of the filling body.

[0011] Preferably, the reinforcement strip is a metal strip or a rubber strip.

[0012] Preferably, the inner conductor includes a conductor core, a second insulating layer arranged outside the conductor core, a shielding layer arranged outside the second insulating layer, and a third insulating layer arranged outside the shielding layer;

[0013] The conductor core and the second insulating layer form a combined wire monomer, and two combined wire monomers are twisted together to form a twisted pair. The shielding layer is arranged outside the twisted pair.

[0014] Preferably, the twisted pair, the shielding layer and the third insulating layer form a conductive unit, the inner conductor includes a plurality of groups of conductive units, and a foam layer is provided between each group of conductive units and the first insulating layer.

[0015] Preferably, the inner surface of the first insulating layer and the outer surface of the third insulating layer are provided with sawtooth grooves, and the inner surface and the outer surface of the foam body are provided with sawtooth protrusions matching with the sawtooth grooves.

[0016] The base station data transmission cable provided by the present invention has a foam layer disposed between the inner conductor and the first insulating layer of the base station data transmission cable. Since the elasticity of the foam layer is greater than that of the first insulating layer, especially when the foam layer is a sponge layer, its compressible space is larger, so that when the base station data transmission cable is bent, the first insulating layer first compresses the foam layer to deform to form a bend, and when a position is bent to a certain extent, the first insulating layer will be stretched and deformed on the outside, thus greatly reducing the degree of stretching deformation generated by the base station data transmission cable when it is bent, which is more conducive to use in an environment with relatively low temperature;

[0017] When bending, multiple bending points can be set to form a large bend, which can further reduce the tensile deformation of the base station data transmission cable when bending, or even eliminate the tensile deformation of the data transmission cable when bending. Similarly, when bending around a circular object, this structure is less likely to cause the first insulating layer to be tensilely deformed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the external structure of the base station data transmission cable in Example 1 and Example 2;

[0019] Figure 2It is a schematic diagram of the external structure of the base station data transmission cable in Example 3 and Example 4;

[0020] Figure 3 for Figure 1 One of the AA cross-sectional structural diagrams;

[0021] And for Figure 2 One of the schematic diagrams of the BB cross-section structure;

[0022] Figure 4 for Figure 2 Schematic diagram of CC cross-section structure;

[0023] Figure 5 for Figure 1 The second schematic diagram of the AA cross-section structure;

[0024] Figure 6 for Figure 1 The third schematic diagram of the AA cross-section structure;

[0025] And for Figure 2 The second schematic diagram of the BB cross-section structure;

[0026] Figure 7 for Figure 2 A schematic diagram of a longitudinal cross-sectional structure of FIG. 1 , wherein the inner conductor structure is removed for ease of understanding;

[0027] Figure 8 for Figure 7 Enlarged view at D;

[0028] Fig. 9 For Figure 8 A schematic diagram of a partial cross-sectional structure of the corresponding inner conductor structure;

[0029] Reference numerals in the figure: inner conductor 1, conductor core 1-1, second insulating layer 1-2, shielding layer 1-3, third insulating layer 1-4, insulating filler 1-5, reinforcing strip 1-6, first insulating layer 2, foam layer 3, serrated groove 4, serrated protrusion 5. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] Embodiment 1, the present invention provides a base station data transmission cable, see Figure 1 and Figure 3 , including an inner conductor 1 and a first insulating layer 2 arranged outside the inner conductor; a foam layer 3 is arranged between the inner conductor and the first insulating layer of the base station data transmission cable, the elasticity of the foam layer is greater than the elasticity of the first insulating layer, wherein the foam layer is a layered structure made of foam paper, the foam layer can be a sponge layer, and the sponge can be a high-temperature resistant sponge or a memory sponge, etc.; wherein the inner conductor can use an existing structure. In this embodiment, the inner conductor includes a conductor core 1-1, a second insulating layer 1-2 arranged outside the conductor core, and a shielding layer 1-3 arranged outside the second insulating layer, the conductor core and the second insulating layer form a combined wire monomer, two of the combined wire monomers are intertwined to form a twisted pair, and the shielding layer is arranged outside the twisted pair; the twisted pair and the shielding layer form a conductive monomer, the inner conductor includes multiple groups of conductive monomers, and the multiple groups of conductive monomers form a composite, and the foam layer is located between the composite and the first insulating layer.

[0032] In the above structure, a foam layer is arranged between the inner conductor and the first insulating layer of the base station data transmission cable. Since the elasticity of the foam layer is greater than that of the first insulating layer, especially when the foam layer is a sponge layer, its compressible space is larger, so that when the base station data transmission cable is bent, the first insulating layer first compresses the foam layer to deform to form a bend, and when a position is bent to a certain extent, the first insulating layer will be stretched and deformed on the outside, which greatly reduces the degree of stretching deformation of the base station data transmission cable when it is bent, and is more conducive to use in an environment with relatively low temperature;

[0033] When bending, multiple bending points can be set to form a large bend, which can further reduce the tensile deformation of the base station data transmission cable when bending, or even eliminate the tensile deformation of the data transmission cable when bending. Similarly, when bending around a circular object, this structure is less likely to cause the first insulating layer to be tensilely deformed.

[0034] In actual use, the foaming layer, especially the sponge layer, can form a support between the inner conductor and the first insulating layer, so that there is a relatively large friction between the inner conductor and the foaming layer and between the foaming layer and the first insulating layer, especially when the foaming layer is compressed during bending, the friction will increase, thereby effectively preventing the inner conductor and the first insulating layer from moving relative to each other when subjected to force. As an embodiment, referring to FIG5 , the gaps between the multiple groups of conductive monomers are filled with insulating filling bodies 1-5, the center of the filling bodies coincides with the center of the first insulating layer, and reinforcing strips 1-6 are arranged at the center of the filling bodies. The filling bodies can further prevent the inner conductor and the first insulating layer from moving relative to each other when subjected to force, and the reinforcing strips are arranged at the neutral position of the filling bodies to increase the overall tensile strength of the base station data transmission cable, wherein the reinforcing strips are metal strips or rubber strips. When using metal strips, a shielding layer can also be arranged between the foaming layer and the first insulating layer or between the foaming layer and the inner conductor. This is a setting method well known to those skilled in the art and will not be repeated here.

[0035] Embodiment 2 is substantially the same as Embodiment 1, except that a third insulating layer is provided outside the shielding layer and a foam layer is provided between the conductive monomer and the first insulating layer. For specific structures, see Figure 1 and Figure 6 The base station data transmission cable comprises an inner conductor 1 and a first insulating layer 2 arranged outside the inner conductor; a foam layer 3 is arranged between the inner conductor and the first insulating layer of the base station data transmission cable, the elasticity of the foam layer is greater than the elasticity of the first insulating layer, wherein the foam layer is a layered structure made of foam paper, the foam layer can be a sponge layer, and the sponge can be a high-temperature resistant sponge or a memory sponge, etc.; wherein the inner conductor can use an existing structure, in this embodiment, the inner conductor comprises a conductor core 1-1, a second insulating layer 1-2 arranged outside the conductor core, a shielding layer 1-3 arranged outside the second insulating layer, and a third insulating layer 1-4 arranged outside the shielding layer; the conductor core and the second insulating layer form a combined line monomer, two of the combined line monomers are intertwined to form a twisted pair, and the shielding layer is arranged outside the twisted pair; the twisted pair, the shielding layer and the third insulating layer form a conductive monomer, the inner conductor comprises a plurality of groups of conductive monomers, and a foam layer is arranged between each group of the conductive monomers and the first insulating layer.

[0036] The principle of the above structure is the same as that of the embodiment, and will not be repeated here. Figure 6 A filling body and a reinforcing strip structure are arranged in the middle gaps between the four conductive monomers.

[0037] As a preferred embodiment, see Figure 7-Figure 9The inner surface of the first insulating layer and the outer surface of the third insulating layer are provided with sawtooth grooves 4, and the inner and outer surfaces of the foam body are provided with sawtooth protrusions 5 that cooperate with the sawtooth grooves. When the foam layer is compressed during bending, the sawtooth structure can prevent the inner conductor and the first insulating layer from moving relative to each other when subjected to force. In addition, when bending, due to the depressions between adjacent sawtooth parts of the sawtooth structure, the foam body is more easily deformed during bending, thereby further reducing the tensile deformation of the first insulating layer.

[0038] Embodiment 3: The principle of embodiment 3 is the same as that of embodiment 1, except that a foam layer is provided between part of the inner conductor and the first insulating layer of the base station data transmission cable. When in use, the cable can be bent at the part with the foam. For the specific structure, see Figure 2-Figure 4 , including an inner conductor 1 and a first insulating layer 2 arranged outside the inner conductor; a foam layer 3 is arranged between the inner conductor and the first insulating layer of part of the base station data transmission cable, wherein the part with the foam can be arranged in sections on the entire cable, so that this position can also be used as a hand-held part when pulling the wire, and the hand-grip is good. The diameter difference formed between the part without the foam can be used for anti-slip, and the elasticity of the foam layer is greater than that of the first insulating layer, wherein the foam layer is a layered structure made of foam paper, and the foam layer can be a sponge layer, and the sponge can be a high-temperature resistant sponge or a memory sponge, etc.; wherein the inner conductor can use an existing structure. In this embodiment, the inner conductor includes a conductor core 1-1, a second insulating layer 1-2 arranged outside the conductor core, and a shielding layer 1-3 arranged outside the second insulating layer. The conductor core and the second insulating layer form a combined line monomer, and the two combined line monomers are arranged to be intertwined with each other. A twisted pair is formed, the shielding layer is arranged outside the twisted pair; the twisted pair and the shielding layer form a conductive monomer, the inner conductor includes multiple groups of conductive monomers, the multiple groups of conductive monomers form a composite, and the foam layer is located between the composite and the first insulating layer.

[0039] Of course, the additional implementations in Example 1 are also applicable to this example.

[0040] Embodiment 4: Embodiment 4 has the same principle as Embodiment 2, except that a foam layer is provided between part of the inner conductor and the first insulating layer of the base station data transmission cable. When in use, the cable can be bent at the part with the foam. For the specific structure, see Figure 2 , Figure 4 and Figure 6, comprising an inner conductor 1 and a first insulating layer 2 arranged outside the inner conductor; a foam layer 3 is arranged between the inner conductor and the first insulating layer of part of the base station data transmission cable, wherein the part with the foam can be arranged in sections on the entire cable, so that when pulling the cable, this position can also be used as a hand-held part, the hand-holding feeling is good, and the diameter difference formed between the part without the foam can be used for anti-slip, the elasticity of the foam layer is greater than the elasticity of the first insulating layer, wherein the foam layer is a layered structure made of foam paper, and the foam layer can be a sponge layer, and the sponge can be a high-temperature resistant sponge or a memory sponge, etc.; wherein the inner conductor The existing structure can be used. In this embodiment, the inner conductor includes a conductor core 1-1, a second insulating layer 1-2 arranged outside the conductor core, a shielding layer 1-3 arranged outside the second insulating layer, and a third insulating layer 1-4 arranged outside the shielding layer; the conductor core and the second insulating layer form a combined wire monomer, two of the combined wire monomers are intertwined to form a twisted pair, and the shielding layer is arranged outside the twisted pair; the twisted pair, the shielding layer and the third insulating layer form a conductive monomer, and the inner conductor includes multiple groups of conductive monomers, and a foam layer is arranged between each group of the conductive monomers and the first insulating layer.

[0041] Of course, the additional implementations in Example 2 are also applicable to this example.

[0042] The above-mentioned embodiments only express the implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A base station data transmission cable, comprising an inner conductor (1) and a first insulating layer (2) arranged outside the inner conductor; characterized in that: A foam layer (3) is provided between the inner conductor and the first insulating layer of at least part of the base station data transmission cable; The inner conductor comprises a conductor core (1-1), a second insulating layer (1-2) arranged outside the conductor core, a shielding layer (1-3) arranged outside the second insulating layer, and a third insulating layer (1-4) arranged outside the shielding layer; The conductor core and the second insulating layer form a combined wire monomer, two combined wire monomers are twisted together to form a twisted pair, and the shielding layer is arranged outside the twisted pair; The inner surface of the first insulating layer and the outer surface of the third insulating layer are provided with sawtooth grooves (4), and the inner surface and the outer surface of the foam body are provided with sawtooth protrusions (5) matching the sawtooth grooves, so that the foam body is more easily deformed when bent; The portion provided with the foamed body is arranged in sections throughout the entire cable.

2. A base station data transmission cable according to claim 1, characterized in that: The foam layer is a sponge layer.

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