阅读说明：本技术 基站数据传输电缆 (Data transmission cable for base station ) 是由 胡必林 胡涛涛 李健 蔡飞 胡程 徐静林 胡豪杰 刘丽 于 2020-07-27 设计创作，主要内容包括：本发明涉及基站数据传输电缆,包括内层导线和设置于所述内层导线外的第一绝缘层,至少有部分所述基站数据传输电缆的内层导线和第一绝缘层之间设置有发泡体层。本发明提供的基站数据传输电缆,在基站数据传输电缆的内层导线和第一绝缘层之间设置有发泡体层,由于发泡体层弹性大于第一绝缘层的弹性,尤其是发泡体层为海绵层时其可压缩空间较大,使得在基站数据传输电缆在弯折时第一绝缘层首先压缩发泡体层变形形成弯折,在一个位置弯折到一定程度时第一绝缘层在外侧才会被拉伸变形,这样大大减少了基站数据传输电缆在弯折时产生的拉伸变形程度,更有利于气温在比较低的环境下使用。(The invention relates to a base station data transmission cable which comprises an inner layer wire and a first insulating layer arranged outside the inner layer wire, wherein a foaming body layer is arranged between at least part of the inner layer wire and the first insulating layer of the base station data transmission cable. According to the base station data transmission cable provided by the invention, the foaming body layer is arranged between the inner layer lead of the base station data transmission cable and the first insulating layer, and the elasticity of the foaming body layer is larger than that of the first insulating layer, particularly, the foaming body layer has larger compressible space when being a sponge layer, so that the first insulating layer firstly compresses the foaming body layer to deform to form bending when the base station data transmission cable is bent, and the first insulating layer is stretched and deformed on the outer side when the first insulating layer is bent to a certain degree at one position, so that the stretching deformation degree generated when the base station data transmission cable is bent is greatly reduced, and the base station data transmission cable is more favorable for being used in a lower environment at a lower temperature.)

1. A base station data transmission cable comprises an inner layer lead (1) and a first insulating layer (2) arranged outside the inner layer lead; it is characterized in that the preparation method is characterized in that,

a foam layer (3) is arranged between the inner layer wire and the first insulating layer of at least part of the base station data transmission cable.

2. The base station data transmission cable of claim 1, wherein the foam layer is a sponge layer.

3. A base station data transmission cable according to claim 1, characterized in that the inner conductor comprises 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.

4. The base station data transmission cable of claim 3, wherein the conductor core and the second insulating layer form a single combined wire, the single combined wire is twisted to form a twisted pair, and the shielding layer is disposed outside the twisted pair.

5. The base station data transmission cable according to claim 4, wherein the twisted pairs and the shielding layer form a conductive single body, the inner conductor comprises a plurality of sets of conductive single bodies, the plurality of sets of conductive single bodies form a composite body, and the foam layer is located between the composite body and the first insulating layer.

6. A base station data transmission cable according to claim 5, characterized in that insulating fillers (1-5) are filled in the gaps between the groups of the conductive single bodies, the center of the filler coincides with the center of the first insulating layer, and a reinforcing strip (1-6) is arranged at the center of the filler.

7. The base station data transmission cable according to claim 6, wherein the reinforcing strip is a metal strip or a rubber strip.

8. The base station data transmission cable according to claim 1, wherein 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 wire core and the second insulating layer form a combined wire monomer, the two combined wire monomers are mutually wound to form a twisted pair, and the shielding layer is arranged outside the twisted pair.

9. The base station data transmission cable according to claim 8, wherein the twisted pair, the shielding layer and the third insulating layer form a single conductive body, the inner conductor comprises a plurality of groups of single conductive bodies, and a foam layer is disposed between each group of single conductive bodies and the first insulating layer.

10. A base station data transmission cable according to claim 8 or 9, characterized in that the inner surface of the first insulating layer and the outer surface of the third insulating layer are provided with saw-tooth grooves (4), and the inner surface and the outer surface of the foam body are provided with saw-tooth projections (5) cooperating with the saw-tooth grooves.

Technical Field

The invention belongs to the technical field of data transmission cables, and particularly relates to a base station data transmission cable.

Background

With the development of communication technology, the construction of base stations has increased, wherein the data transmission cable is used as a medium for data transmission, and the function of the data transmission cable is not a little different, and once a problem occurs in the data transmission cable, the data transmission of the base station is directly affected. The data transmission cable is inevitably bent in the wiring process, and the insulating layer of the data transmission cable is stretched and deformed on the outer side in the bending process to form damage to the insulating layer, generally because the insulating material has certain ductility, therefore, the damage does not generally affect the insulation protection of the data transmission cable, however, in some special conditions, such as a relatively low temperature environment, the ductility of the insulation layer is deteriorated, so that the damage to the insulation layer formed after the insulation layer is stretched and deformed becomes large, even cracks occur when the bending is large, thereby affecting the insulation protection performance of the insulation layer, and therefore, new low temperature resistant materials are continuously researched to solve the problem, and obtains better technical results, but can not meet higher requirements of people.

Disclosure of Invention

In view of the above problems in the prior art, the present invention provides a base station data transmission cable to solve the above technical problems.

In order to achieve the above object, the present invention provides a technical solution as follows:

a base station data transmission cable comprises an inner layer wire and a first insulating layer arranged outside the inner layer wire, wherein a foaming body layer is arranged between at least part of the inner layer wire of the base station data transmission cable and the first insulating layer.

Preferably, the foam layer is a sponge layer.

Preferably, the inner conductor comprises a conductor wire core, a second insulating layer arranged outside the conductor wire core and a shielding layer arranged outside the second insulating layer.

Preferably, the conductor core and the second insulating layer form a combined wire monomer, the two combined wire monomers are mutually wound to form a twisted pair, and the shielding layer is arranged outside the twisted pair.

Preferably, the twisted pair and the shielding layer form a conductive single body, the inner conductor includes a plurality of sets of conductive single bodies, the plurality of sets of conductive single bodies form a composite body, and the foam layer is located between the composite body and the first insulating layer.

Preferably, insulating filling bodies are filled in gaps among the multiple groups of conducting monomers, the centers of the filling bodies are overlapped with the center of the first insulating layer, and reinforcing bars are arranged at the center positions of the filling bodies.

Preferably, the reinforcing strip is a metal strip or a rubber strip.

Preferably, the inner layer lead comprises a conductor wire core, a second insulating layer arranged outside the conductor wire core, a shielding layer arranged outside the second insulating layer and a third insulating layer arranged outside the shielding layer;

the conductor wire core and the second insulating layer form a combined wire monomer, the two combined wire monomers are mutually wound to form a twisted pair, and the shielding layer is arranged outside the twisted pair.

Preferably, the twisted pair, the shielding layer and the third insulating layer form a conductive single body, the inner conductor includes a plurality of groups of conductive single bodies, and a foam layer is disposed between each group of conductive single bodies and the first insulating layer.

Preferably, the inner surface of the first insulating layer and the outer surface of the third insulating layer are provided with saw-tooth-shaped grooves, and the inner surface and the outer surface of the foam body are provided with saw-tooth-shaped protrusions matched with the saw-tooth-shaped grooves.

According to the base station data transmission cable provided by the invention, the foaming body layer is arranged between the inner layer wire and the first insulating layer of the base station data transmission cable, and the elasticity of the foaming body layer is greater than that of the first insulating layer, particularly, the compressible space of the foaming body layer is larger when the foaming body layer is a sponge layer, so that the first insulating layer firstly compresses the foaming body layer to deform to form bending when the base station data transmission cable is bent, and the first insulating layer is stretched and deformed on the outer side when the foaming body layer is bent to a certain degree at one position, so that the stretching deformation degree generated when the base station data transmission cable is bent is greatly reduced, and the base station data transmission cable is more favorable for being used in a;

when bending, can also set up a plurality of bending points and form a big bending, can further reduce the tensile deformation journey that base station data transmission cable produced when buckling like this, stop the tensile deformation that data transmission cable produced when bending even. Similarly, the structure is less prone to tensile deformation of the first insulating layer when bent around a circular object.

Drawings

Fig. 1 is an external configuration diagram of a base station data transmission cable in embodiments 1 and 2;

fig. 2 is an external configuration diagram of a base station data transmission cable in embodiments 3 and 4;

FIG. 3 is a schematic view of the cross-sectional structure A-A of FIG. 1;

and is one of the schematic structural diagrams of the cross-section B-B of FIG. 2;

FIG. 4 is a schematic view of the cross-sectional structure C-C of FIG. 2;

FIG. 5 is a second schematic view of the cross-sectional structure A-A of FIG. 1;

FIG. 6 is a third schematic view of the cross-sectional structure A-A of FIG. 1;

and is a second schematic diagram of the cross-sectional structure B-B of FIG. 2;

FIG. 7 is a schematic longitudinal cross-sectional view of the structure of FIG. 2 with the inner wire structure removed for ease of understanding;

FIG. 8 is an enlarged view of FIG. 7 at D;

FIG. 9 is a schematic partial cross-sectional view of the inner conductive line structure corresponding to FIG. 8;

reference numerals in the figures; the cable comprises an inner layer wire 1, a conductor wire core 1-1, a second insulating layer 1-2, a shielding layer 1-3, a third insulating layer 1-4, an insulating filling body 1-5, reinforcing strips 1-6, a first insulating layer 2, a foaming body layer 3, a sawtooth-shaped groove 4 and a sawtooth-shaped protrusion 5.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of protection of the present invention.