CN214410863U

CN214410863U - Weather-resistant, friction-resistant, high-flame-retardant and low-attenuation signal control cable

Info

Publication number: CN214410863U
Application number: CN202120637324.1U
Authority: CN
Inventors: 朱正翔; 李森; 彭明松
Original assignee: ZHEJIANG WANMA GROUP SPECIAL ELECTRON CABLE CO Ltd
Current assignee: ZHEJIANG WANMA GROUP SPECIAL ELECTRON CABLE CO Ltd
Priority date: 2021-03-30
Filing date: 2021-03-30
Publication date: 2021-10-15
Anticipated expiration: 2031-03-30

Abstract

The utility model discloses a high fire-retardant low decay signal control cable of resistant friction of weather, including power cord unit and signal line unit, still include almag silk weaving layer, aluminium foil shielding layer and TPU oversheath layer, almag silk weaving layer cladding is located aluminium foil shielding layer periphery, TPU oversheath layer cladding is located aluminium magnesium alloy silk weaving layer periphery, aluminium foil shielding layer cladding is located the common peripheral department of power cord unit and signal line unit, TPU oversheath layer adopts polyether type TPU sheath material layer structure; a plurality of filling ropes are arranged between the power line unit and the signal line unit, and the power line unit and the signal line unit are divided into two different unit areas in the aluminum foil shielding layer by the filling ropes. The cable can be more effectively used in the environment with low attenuation signal control, and the performance can be comprehensively considered to guarantee and meet the use requirement in severe environment.

Description

Weather-resistant, friction-resistant, high-flame-retardant and low-attenuation signal control cable

Technical Field

The utility model relates to a security protection cable control cable especially relates to one kind and uses in the high fire-retardant low decay signal control cable of resistant friction of weather in environments such as mobile communication network basic station.

Background

With the development of mobile communication networks becoming faster and faster, the requirements and requirements of large operators on mobile networks become higher and higher, and in order to realize full-network coverage, the power modulation antennas for various base stations are widely applied, and especially in recent years, the 5G network technology is vigorously developed, so that the distribution density of the base stations in the same area becomes higher and higher; however, the traditional control cables in the current market have different quality, only the cables with excellent low-frequency attenuation can ensure the accuracy of the electrically-adjusted antenna during steering, and meanwhile, the base station antenna is basically applied to the outdoors or in a base station distribution box, so that the using environment conditions are more and more severe; in addition, as the flame retardant requirement of the cable for the occurrence of fire is higher and higher, the selection of the cable material is higher and higher.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the cable that current use in the base station antenna have the low frequency decay performance relatively poor, can not fine reply in the open air or the middle situation of adverse circumstances such as base station block terminal and provide one kind can be more effective to the service environment requirement of low attenuation signal control cable, but the high fire-retardant low attenuation signal control cable of resistant friction of weather that the comprehensive consideration performance was guaranteed and satisfied adverse circumstances operation requirement.

The utility model discloses a solve the concrete technical scheme that above-mentioned technical problem adopted and be: a weather-resistant friction-resistant high-flame-retardant low-attenuation signal control cable comprises a power line unit and a signal line unit, and is characterized in that: the aluminum-magnesium alloy wire braided layer is coated on the periphery of the aluminum foil shielding layer, the TPU outer jacket layer is coated on the periphery of the aluminum-magnesium alloy wire braided layer, the aluminum foil shielding layer is coated on the common peripheral periphery of the power line unit and the signal line unit, and the TPU outer jacket layer adopts a hydrolysis-resistant and-40 ℃ low-temperature-resistant polyether type TPU jacket material layer structure; a plurality of filling ropes are arranged between the power line unit and the signal line unit, and the power line unit and the signal line unit are divided into two different unit areas in the aluminum foil shielding layer by the filling ropes. The cable can be more effectively used in the environment with low attenuation signal control, and the performance can be comprehensively considered to guarantee and meet the use requirement in severe environment.

Preferably, the power line insulating layer in the power line unit adopts a soft polyvinyl chloride insulating material structure, and the signal line insulating layer in the signal line unit adopts a high-density polyethylene insulating material structure. The safety, reliability, stability and effectiveness of insulation in the power line unit and the signal line unit are improved.

Preferably, the aluminum foil shielding layer is an aluminum-plastic composite foil with the thickness of 15u aluminum base, and the overlapping rate is more than or equal to 25%. The safety shielding reliability and effectiveness of the aluminum foil shielding layer on the whole cable are improved, and the use low attenuation guarantee is improved.

Preferably, the aluminum magnesium alloy wire braided layer adopts braided wires with the diameter of 0.12-0.16mm and the braided density of more than or equal to 85 percent. The safety shielding reliability and effectiveness of the aluminum-magnesium alloy wire braided layer on the whole cable are improved, and the use low attenuation guarantee is achieved.

Preferably, the TPU outer sheath layer is sealed and uniformly extruded on the outer peripheral surface of the aluminum-magnesium alloy wire braided layer by adopting an extrusion process structure.

Preferably, the conductive conductors in the power line unit and the signal line unit are made of soft copper conductor materials. The conductivity of the conductor is improved, and the transmission loss of the cable is reduced.

The utility model has the advantages that: the cable can be more effectively used in the environment with low attenuation signal control, and the performance can be comprehensively considered to guarantee and meet the use requirement in severe environment.

1) The utility model discloses the sheath material chooses for use and is able to bear or endure low temperature polyether type TPU sheath of-40 ℃, can normally work under-40 ℃ low temperature, and polyether type TPU can guarantee that long-term rainy season environment keeps physical mechanical strength when the product again, does not take place ageing.

2) Excellent flame retardant properties: the high flame retardant TPU sheath material selected for the sheath material has the characteristics of high ignition point and difficulty in decomposition during combustion, does not drip during combustion, has excellent flame retardant property, and the power line unit is made of polyvinyl chloride material, so that the flame retardant property of the cable is further ensured, and the whole cable can meet the requirements of VW-1 flame retardant test.

3) Excellent electrical properties: the signal line unit adopts the polyethylene insulating material, and the first layer shielding layer adopts the compound paper tinsel of aluminium base thickening, makes the utility model discloses the cable has lower decay at the low band, and the long distance antenna of being convenient for uses.

4) Has good capability of shielding external signal interference: the inner layer shielding layer is made of aluminum-based thickened composite foil, the outer layer is woven by aluminum-magnesium alloy wires with the weaving density of more than 85%, the shielding effect is good, and the high efficiency of signal transmission is guaranteed.

Description of the drawings:

the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a schematic structural view of the weather-resistant, friction-resistant, high-flame-retardant and low-attenuation signal control cable of the present invention.

Fig. 2 is a schematic cross-sectional view of the weatherproof, friction-resistant, high-flame-retardant, low-attenuation signal control cable of the present invention.

Detailed Description

In the embodiment shown in fig. 1 and 2, a weather-resistant, friction-resistant, high-flame-retardant and low-attenuation signal control cable includes a power line unit and a signal line unit, and further includes an aluminum magnesium alloy wire braid layer 2, an aluminum foil shielding layer 3 and a TPU outer sheath layer 1, the aluminum magnesium alloy wire braid layer 2 is coated on the outer periphery of the aluminum foil shielding layer 3, the TPU outer sheath layer 1 is coated on the outer periphery of the aluminum magnesium alloy wire braid layer 2, the aluminum foil shielding layer 3 is coated on the common outer periphery of the power line unit and the signal line unit, and the TPU outer sheath layer is of a polyether type TPU sheath material layer structure which is resistant to hydrolysis and low temperature of-40 ℃; a plurality of filling ropes 6 are filled between the power line unit and the signal line unit, and the power line unit and the signal line unit are divided into two different unit areas in the aluminum foil shielding layer by the filling ropes. Conductor insulation layer 4 is wrapped up to the conductor periphery in power cord unit and the signal line unit, and wherein the power cord insulation layer in the power cord unit adopts soft state polyvinyl chloride insulating material structure, and the signal line insulation layer in the signal line unit adopts high density polyethylene insulating material structure. The aluminum foil shielding layer is an aluminum-plastic composite foil with the thickness of 15u aluminum base, and the covering rate is more than or equal to 25 percent. The aluminum-magnesium alloy wire braided layer adopts braided wires with the diameter of 0.12-0.16mm and the braided density of more than or equal to 85 percent. The TPU outer sheath layer is sealed and evenly extruded on the outer peripheral surface of the aluminum-magnesium alloy wire braided layer by adopting an extrusion process structure. The conductive conductors 5 in the power line unit and the signal line unit are made of soft copper conductor materials. The aluminum-magnesium alloy wire braided layer and the aluminum foil shielding layer are carried out according to the standard requirements of @0.5MHz-1.5dB/100m and @1.0MHz-2.0dB/100m on the low attenuation of the whole cable. The whole cable passes the VW-1 flame-retardant test requirement completely. The factors such as performance guarantee, environmental requirements, process realization difficulty, manufacturing cost and the like are comprehensively considered, the overall structure design and material selection of the cable are guaranteed, the weather resistance and flame retardant requirements of the cable are guaranteed, the structural design, material selection and process control of the cable are guaranteed, and the electrical performance requirements such as attenuation of the cable are improved. The high flame-retardant TPU sheath material structure selected for the outer sheath layer material has the characteristics of high ignition point and difficulty in decomposition during combustion, does not drip during combustion, has excellent flame-retardant characteristic, adopts a polyvinyl chloride material as a power line unit, further ensures the flame-retardant characteristic of the cable, and can meet the requirements of a VW-1 flame-retardant test on the whole cable.

In the description of the positional relationship of the present invention, the terms such as "inner", "outer", "upper", "lower", "left", "right", etc., which indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, are presented only for the convenience of describing the embodiments and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Claims

1. A weather-resistant friction-resistant high-flame-retardant low-attenuation signal control cable comprises a power line unit and a signal line unit, and is characterized in that: the aluminum-magnesium alloy wire braided layer is coated on the periphery of the aluminum foil shielding layer, the TPU outer sheath layer is coated on the periphery of the aluminum-magnesium alloy wire braided layer, the aluminum foil shielding layer is coated on the periphery of the common periphery of the power line unit and the signal line unit, and the TPU outer sheath layer adopts a polyether type TPU sheath material layer structure; a plurality of filling ropes are arranged between the power line unit and the signal line unit, and the power line unit and the signal line unit are divided into two different unit areas in the aluminum foil shielding layer by the filling ropes.

2. The weatherable, abrasion resistant, high flame retardant, low attenuation signal control cable of claim 1, wherein: the power line insulating layer in the power line unit adopts a soft polyvinyl chloride insulating material structure, and the signal line insulating layer in the signal line unit adopts a high-density polyethylene insulating material structure.

3. The weatherable, abrasion resistant, high flame retardant, low attenuation signal control cable of claim 1, wherein: the aluminum foil shielding layer is an aluminum-plastic composite foil with the thickness of 15u aluminum base, and the covering rate is more than or equal to 25 percent.

4. The weatherable, abrasion resistant, high flame retardant, low attenuation signal control cable of claim 1, wherein: the aluminum-magnesium alloy wire braided layer is made of braided wires with the diameter of 0.12-0.16mm and the braiding density of more than or equal to 85 percent.

5. The weatherable, abrasion resistant, high flame retardant, low attenuation signal control cable of claim 1, wherein: the TPU outer sheath layer is sealed and evenly extruded on the outer peripheral surface of the aluminum-magnesium alloy wire braided layer by adopting an extrusion process structure.

6. The weatherable, abrasion resistant, high flame retardant, low attenuation signal control cable of claim 1 or 2, wherein: the conductive conductors in the power line unit and the signal line unit are made of soft copper conductor materials.