CN209912536U

CN209912536U - Flame-retardant high-speed data cable for 5G data center system

Info

Publication number: CN209912536U
Application number: CN201920933742.8U
Authority: CN
Inventors: 汤代兵
Original assignee: Guangzhou Yuhong Polytron Technologies Inc
Current assignee: Guangzhou Yuhong Polytron Technologies Inc
Priority date: 2019-06-20
Filing date: 2019-06-20
Publication date: 2020-01-07
Anticipated expiration: 2029-06-20

Abstract

The utility model belongs to the technical field of the mobile communication technology of fifth generation and specifically relates to 5G data center is fire-retardant type high-speed data cable for system, including cable core, cable wire pair, internal shield line, internal shield layer, interior sheath, outer shielding layer and outer jacket, cable core includes inner conductor and insulating layer, conductor surface including the insulating layer cladding, the cable wire pair includes two cable core and water conservancy diversion line, two the cable core tiling is connected, just the water conservancy diversion line has been laid directly over the cable core junction, the internal shield line includes cable wire pair, internal shield layer and around the band, the cable wire pair outside is equipped with the internal shield layer, the internal shield layer outside is equipped with around the band, every four of internal shield line are a set of. The utility model discloses reduce sinle silk dielectric constant, satisfy the low decay requirement of signal transmission, improve sinle silk transmission rate, under reaching same transmission performance condition, reduce sinle silk external diameter size, save insulating material in a large number to reduction in production cost.

Description

Flame-retardant high-speed data cable for 5G data center system

Technical Field

The utility model relates to a fifth generation mobile communication technology field especially relates to 5G data center system is with fire-retardant type high-speed data cable.

Background

With the rapid development of mobile communication, global user demand for mobile data is increasingly soaring, and it is expected that the world will formally enter the 5G era by 2021. The general transition trend of 5G networks is that mobile radio frequency devices are closer to end users to improve coverage and speed data transmission. Due to the construction limitation of traditional macro base stations, the solution for improving the coverage is to deploy more small base stations, so that the coming of 5G can really drive the explosive growth of the small base stations, the national data center design specification GB50174-2017 stipulates that 6A-type and above twisted pair cables should be adopted for a horizontal subsystem bearing data services, and meanwhile, requirements are provided for the flame retardant level in a machine room, a digital communication cable is an important component inside the base station, and a 5G network also provides higher requirements for the digital communication cable, and how to strengthen the design and improve the process and develop a digital communication cable better meeting the technical requirements of 5G, particularly in the aspects of broadband, low attenuation, high anti-interference performance, high flame retardancy, and the like, is an important threshold in front of cable providers.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the 5G data center system that proposes is with fire-retardant type high-speed data cable.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

design 5G data center system is with fire-retardant type high-speed data cable, including cable core, cable conductor pair, internal shield line, internal shield layer, interior sheath, external shield layer and outer jacket, cable core includes inner conductor and insulating layer, conductor surface including the insulating layer cladding, cable conductor pair includes two cable core and water conservancy diversion line, two cable core tiling is connected, just the water conservancy diversion line has been laid directly over cable core junction, internal shield line includes cable conductor pair, internal shield layer and around the band, the cable conductor pair outside is equipped with the internal shield layer, the internal shield layer outside is equipped with around the band, every four of internal shield line are a set of, and each is organized the internal shield line outside is equipped with the inner sheath, the inner sheath outside is equipped with the external shield layer, the external shield outside is equipped with the outer jacket.

Preferably, the inner conductor is a silver-plated oxygen-free copper conductor with the purity of 99.999 percent.

Preferably, the insulating layer is formed by extruding a physical foaming fluorinated ethylene propylene layer on the surface of the inner conductor in a three-layer co-extrusion mode.

Preferably, the diversion line is a stranded body of a plurality of tinned copper wires.

Preferably, the inner shielding layer is formed by longitudinally wrapping each signal line pair with an aluminum foil layer respectively, a cabling process and an inner protection layer process are completed by a synchronous production method during production, namely the cabling process and the inner protection layer process are completed together, and the shielding line groups are arranged in parallel to form a linear extruded inner protection layer by manufacturing a special die.

Preferably, the wrapping tape is wrapped on the surface of the inner shielding layer in four different colors.

Preferably, outer shielding layer uses the thickness to be the 360 degrees cladding of 70um blue side electrically conductive aluminium foil in interior sheath surface, forms first layer shield, uses 360 degrees cladding of tin-plated copper woven mesh above 90% of density in first layer shield outside simultaneously, forms the second floor shield.

The utility model provides a 5G data center system is with fire-retardant type high-speed data cable, beneficial effect lies in:

1. the production cost is reduced by 50 percent;

2. low and high frequency transmission attenuation is reduced;

3. high flame retardance;

4. no smoke toxicity and no drop generation during combustion.

Drawings

Fig. 1 is the utility model provides a 5G is fire-retardant type high-speed data cable's for data center system structural schematic.

In the figure: inner conductor 1, insulating layer 2, water conservancy diversion line 3, internal shield layer 4, around band 5, interior sheath 6, outer shielding layer 7, outer jacket 8.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1, the flame-retardant high-speed data cable for a 5G data center system comprises cable cores, cable pairs, an inner shielding wire, an inner shielding layer 4, an inner protective layer 6, an outer shielding layer 7 and an outer protective layer 8, wherein the cable cores comprise an inner conductor 1 and an insulating layer 2, the inner conductor 1 adopts a silver-plated oxygen-free copper conductor with the purity of 99.999 percent, the insulating layer 2 coats the surface of the inner conductor 1, the insulating layer 2 is formed by extruding and coating a physical foaming polyfluorinated ethylene propylene layer on the surface of the inner conductor in a three-layer co-extrusion mode, the insulating material is high-temperature resistant, the foaming insulating layer has small dielectric constant and stable performance, the cable pairs comprise two cable cores and a diversion wire 3, the diversion wire 3 is a multi-strand tinned stranded twisted body, the two cable core copper wires are tiled and connected, the diversion wire 3 is laid right above the joint of the cable cores, and the, the inner shielding layer 4 is formed by longitudinally wrapping each signal line pair with an aluminum foil layer respectively, the cabling process and the inner protective layer process are completed by a synchronous production method during production, namely the cabling process and the inner protective layer process are completed together, the shielding line groups are arranged side by side to form a linear extruded inner protective layer by manufacturing a special die, the outer sides of the cable line pairs are provided with the inner shielding layers 4, the outer sides of the inner shielding layers 4 are provided with wrapping tapes 5, the wrapping tapes 5 are respectively wrapped on the surface of the inner shielding layers 4 by four different colors, every four inner shielding lines are grouped, the outer side of each group of inner shielding lines is provided with the inner protective layer 6, the structure is favorable for being welded on terminal equipment, interference electromagnetic clutter signals are guided into the ground, interference is reduced, the outer shielding layer 7 is arranged on the outer side of the inner shielding layer 6, the outer side of the outer shielding layer 7 is provided with the outer shielding layer 8, the outer shielding layer 7 is wrapped on the surface of, and forming a first layer of shielding body, and simultaneously covering the outside of the first layer of shielding body by using a tin-plated copper woven mesh with the density of more than 90% for 360 degrees to form a second layer of shielding body. The utility model discloses use physics foaming to gather perfluor ethylene propylene insulating layer 2 above the sinle silk structure to this structure reduces sinle silk dielectric constant, satisfies the low decay requirement of signal transmission, improves sinle silk transmission rate, under reaching same transmission performance condition, reduces sinle silk external diameter, saves insulating material in a large number, thereby reduction in production cost.

Traditional high flame retardant type CMP level data cable adopts the solid core to gather perfluor ethylene propylene insulating, and transmission rate is 65 parts, the utility model discloses the cable uses the physics foaming insulating, and its foaming reaches 50 parts, and transmission rate is 80 parts, and the insulating material use amount is 50 parts of solid core gathers perfluor ethylene propylene material use amount, tests its maximum attenuation value and is less than 79dB 100m when frequency 25GMHz, and the near-end crosstalk minimum value is 30dB, is less than or equal to 5.6pF 100m at 1KHz working capacitance frequently, dielectric strength AC,15KV, 5min does not puncture. The insulation resistance is more than or equal to 5000M omega.km, and meanwhile, a polyolefin outer skin layer is extruded on the surface of the insulation layer 2, so that the line pair structure is more stable, and the differential impedance meets 100 +/-15 omega within the rising edge time.

Traditional transmission bandwidth 500MHz is pitch that data cable for LAN is different through the design on the line pair, reduces the signal mutual interference between each line pair through the poor balanced principle of line pair pitch, the utility model discloses the cable is for promoting electromagnetic compatibility and takes the form that internal shield layer 4 and external shield 7 combined together on shielding structure, does not need to advance the pair twist to every signal line pair promptly, no pitch line pair promptly, and this structure satisfies the line pair delay difference and equals, adds the contact of blast line 3 and internal shield layer 4 alone simultaneously, and this structure possesses good electromagnetic compatibility.

In addition, in order to ensure the stability and reliability of the cable core and reduce the production cost, a synchronous production method is used for the manufacturing method, namely the four pairs of signal shielding lines are extruded out of the inner sheath through a special die when the inner sheath 6 is extruded out after the four pairs of signal shielding lines are finished, so that the structure of the inner sheath 6 is formed, and the material has extremely strong flame retardance and environmental protection functions. Namely a shielding body combining a metal belt and a metal net, and the function is to meet the anti-interference capability of high and low frequency bands. The outer protective layer 8 is made of fluorinated ethylene propylene material to meet the requirement of high flame retardance.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1.5G data center is fire-retardant type high-speed data cable for system, including cable core, cable conductor pair, internal shield line, internal shield layer (4), interior sheath (6), outer shield layer (7) and outer jacket (8), its characterized in that: the cable core includes inner conductor (1) and insulating layer (2), conductor (1) surface at insulating layer (2) cladding, the cable wire pair includes two cable core and water conservancy diversion line (3), two the cable core tiling is connected, just water conservancy diversion line (3) have been laid directly over the cable core junction, the internal shield line includes cable wire pair, internal shield layer (4) and around band (5), the cable wire pair outside is equipped with internal shield layer (4), the internal shield layer (4) outside is equipped with around band (5), every four of internal shield line are a set of, each group the internal shield line outside is equipped with interior sheath (6), interior sheath (6) outside is equipped with outer shielding layer (7), outer shielding layer (7) outside is equipped with outer jacket (8).

2. The flame retardant type high-speed data cable for 5G data center system according to claim 1, wherein the inner conductor (1) is a silver-plated oxygen-free copper conductor with a purity of 99.999%.

3. The flame-retardant high-speed data cable for the 5G data center system according to claim 1, wherein the insulating layer (2) is formed by extruding a physical foaming polyperfluorinated ethylene propylene layer on the surface of the inner conductor in a three-layer co-extrusion manner.

4. The flame retardant high speed data cable for 5G data center system according to claim 1, wherein the flow guide wire (3) is a stranded body of a plurality of tinned copper wires.

5. The flame retardant high speed data cable for 5G data center system according to claim 1, wherein the inner shield layer (4) is formed by longitudinally wrapping an aluminum foil layer for each signal line pair, and the cabling process and the inner protection layer process are completed by a synchronous production method during production, namely the cabling process and the inner protection layer process are completed together, and the shield line groups are arranged in a straight line to extrude and wrap the inner protection layer by manufacturing a special mold.

6. The flame-retardant high-speed data cable for the 5G data center system according to claim 1, wherein the wrapping tape (5) is wrapped on the surface of the inner shielding layer (4) in four different colors.

7. The flame-retardant high-speed data cable for the 5G data center system according to claim 1, wherein the outer shielding layer (7) is formed by covering a blue conductive aluminum foil with the thickness of 70um for 360 degrees on the surface of the inner shielding layer (6) to form a first shielding layer, and is formed by covering a tin-plated copper woven mesh with the density of more than 90% for 360 degrees outside the first shielding layer to form a second shielding layer.