CN210575246U

CN210575246U - Flexible high-temperature-resistant transmission signal cable

Info

Publication number: CN210575246U
Application number: CN201921547642.8U
Authority: CN
Inventors: 刘永伟; 贺云芳; 马建平; 张镇球
Original assignee: Wuxi New Sunshine Cable Co ltd
Current assignee: Wuxi New Sunshine Cable Co ltd
Priority date: 2019-09-18
Filing date: 2019-09-18
Publication date: 2020-05-19
Anticipated expiration: 2029-09-18

Abstract

The utility model discloses a flexible high temperature resistant transmission signal cable, which comprises a cable main body, wherein a group of video cable cores and a group of signal cable cores are connected around the cable main body; the group of video wire cores are positioned above and below the cable main body, and the group of signal wire cores are positioned on the left and right sides of the cable main body; and a weather-resistant medium-density polyethylene outer sheath is extruded outside the cable main body, the group of video wire cores and the group of signal wire cores. The cable reduces the workload caused by repeated laying of the control cable and the coaxial video cable, shortens the engineering time, reduces the engineering cost, and has excellent performances of ultraviolet radiation resistance, water resistance, weather aging resistance, tensile resistance and the like.

Description

Flexible high-temperature-resistant transmission signal cable

Technical Field

The utility model relates to a wire and cable field specifically is a soft high temperature resistant transmission signal cable.

Background

With the continuous promotion of modernization of new rural areas in recent years and the protection and development of original ecological tourism industry in China. In these areas, the demand for functional cables to conduct control signals and video image signals has risen significantly. On the basis, a cable integrating video image signal transmission and signal control is developed, so that secondary wiring is avoided, the construction cost is reduced, smoothness of video signals can be ensured more stably, and the cable has the advantages of durability, light weight, small outer diameter, small occupied space, low production cost and maintenance cost and the like; therefore, the coaxial video composite control cable has good development prospect.

At present, when a plurality of wire cores of the communication cable are subjected to cabling processing, a wrapping tape is required to be used, so that the plurality of wire cores are tightly bound and are not loosened, and the quality and process requirements of the production of the communication coaxial cable are met. Communication cable's stranded heart yearn has been used for a long time or when the electric current of flowing through is too big, the condition of generating heat can appear, but current is ordinary plastics material around the band, easily absorbs the heat and softens, seriously influences whole communication coaxial cable's life.

And the communication cable needs to be laid in severe weather environments such as sunshine, rain, snow and the like for a long time, the cable is large in energy consumption, poor in high temperature resistance and weather resistance, and the insulation is damaged by freezing, damp, ultraviolet radiation and the like due to overlong time.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a soft high temperature resistant transmission signal cable is provided, reduced control cable and the repeated work load that causes that lays of coaxial video cable, shortened engineering time, reduced engineering cost to this cable has excellent properties such as high temperature resistant, resistant ultraviolet radiation, waterproof, weather proof ageing, tensile.

The utility model discloses a flexible high temperature resistant transmission signal cable, which comprises a cable main body, wherein a group of video cable cores and a group of signal cable cores are connected around the cable main body; the group of video wire cores are positioned above and below the cable main body, and the group of signal wire cores are positioned on the left and right sides of the cable main body; the cable body comprises a cable core, the cable core is formed by twisting a pair of high-temperature-resistant insulating cable cores in pairs, a high-temperature-resistant nylon is filled in a gap of the cable core and then is wrapped by a wrapping tape, an inner protective layer is reinforced outside the wrapping tape, an aluminum alloy shielding layer is woven outside the reinforced inner protective layer, and then radiation heat dissipation cooling coating is coated on the outer surface of the aluminum alloy shielding layer; the video cable core consists of a tin-plated copper conductor, a crosslinked polyethylene insulating layer extruded outside the tin-plated copper conductor and a glass fiber belt wrapped on the crosslinked polyethylene insulating layer; the signal wire core is composed of a copper conductor, a crosslinked polyethylene insulating layer extruded outside the copper conductor and an aluminum-plastic composite belt wrapped on the crosslinked polyethylene insulating layer; and a weather-resistant medium-density polyethylene outer sheath is extruded outside the cable main body, the group of video wire cores and the group of signal wire cores.

The further design is that the high-temperature-resistant insulated wire core is composed of an aluminum alloy conductor, a silane crosslinked polyethylene insulating layer extruded outside the aluminum alloy conductor and aluminum foil glass fiber cloth wrapped outside the silane crosslinked polyethylene insulating layer.

The further design is that the aluminum-coated polyimide film comprises an aluminum layer and a polyimide layer coated on one side surface of the aluminum layer; the thickness of the aluminum layer is 0.5-0.6mm, and the thickness of the polyimide layer is 1-2 mm; the design of combining the aluminum layer and the polyimide layer ensures that the heat insulation effect and the high temperature resistance effect are good, thereby prolonging the service life of the cable.

The reinforced inner protection layer is in a ring shape and is formed by pouring weather-proof sealing glue outside the weather-proof steel cores and in a gap between the weather-proof steel cores and curing after a plurality of weather-proof steel cores are arranged and combined into a circle.

The beneficial effects of the utility model reside in that:

1. the cable integrates the functions of video communication and signal control, avoids resource waste caused by secondary wiring compared with a single transmission cable, has high reliability of data transmission, occupies small space and has good electric signal control and video communication functions;

2. the filling adopts high-temperature-resistant nylon, so that the cable core of the cable has certain flexibility, stress cracking resistance, ultrahigh impact strength, high temperature resistance, and good electrical performance and flame retardant performance;

3. the reinforced inner protection layer has good rigidity and high strength, so that the cable has a series of excellent performances such as high strength, high temperature resistance, corrosion resistance, fatigue resistance, creep resistance, electric conduction, heat transfer, small thermal expansion coefficient and the like; the weather-resistant sealant plays a role in fixing the steel core after being cured, has certain elasticity, and further improves the tear strength, the elongation at break, the tensile strength, the weather resistance and the high temperature resistance of the cable;

4. the cable comprises a cable main body, a group of video wire cores and a group of signal wire cores, wherein a weather-resistant medium-density polyethylene outer sheath is extruded outside the cable main body, and the video wire cores, the signal wire cores and the cable are tightly combined and integrated; the sheath material is a weather-resistant medium-density polyethylene sheath material, so that the cable has excellent waterproof, ultraviolet-resistant and weather-proof aging properties;

5. ZS-411 radiation heat dissipation and cooling coating is adopted, the coating radiates heat of an object in an infrared ray mode, the temperature resistance range is-50-600 ℃, the coating is directly coated on the surface of an aluminum alloy shielding layer, the coating can automatically radiate heat to the outside at the emissivity of about 0.92 epsilon and the infrared wave long wave band of 0.5-13.5 mu m, the heat exchange is accelerated, the internal temperature of the cable can be greatly reduced, and the heat stability and the service life of the cable are improved;

6. the cable reduces the workload caused by repeated laying of the control cable and the coaxial video cable, shortens the engineering time, reduces the engineering cost, and has excellent performances of ultraviolet radiation resistance, water resistance, weather aging resistance, tensile resistance and the like.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a wrapping tape;

fig. 3 is a schematic structural view of the reinforcing inner sheath.

Detailed Description

The present invention will be further described with reference to the following detailed description and accompanying drawings.

As shown in fig. 1, the utility model discloses a flexible high temperature resistant transmission signal cable, which comprises a cable main body, wherein a group of video cable cores and a group of signal cable cores are connected around the cable main body; the group of video wire cores are positioned above and below the cable main body, and the group of signal wire cores are positioned on the left and right sides of the cable main body;

the cable body comprises a cable core, the cable core is formed by twisting a pair of high-temperature-resistant insulated wire cores in pairs, each high-temperature-resistant insulated wire core is composed of an aluminum alloy conductor 1, a silane crosslinked polyethylene insulating layer 2 extruded outside the aluminum alloy conductor and aluminum foil glass fiber cloth 3 wrapped outside the silane crosslinked polyethylene insulating layer, and the aluminum foil glass fiber cloth effectively prevents external electromagnetic interference from entering the cable by utilizing the principles of reflection, absorption and skin effect of the aluminum foil on electromagnetic waves (the skin effect means that the distribution of current on the cross section of the conductor tends to be distributed on the surface of the conductor along with the increase of frequency, the higher the frequency is, the smaller the skin depth is, the higher the frequency is, the lower the penetration capability of electromagnetic waves is, and meanwhile, internal signals are prevented from being radiated out to interfere with the work of other equipment, and the mutual interference among the wire cores is;

filling high-temperature-resistant nylon 4 in the gap of the cable core, then coating a wrapping tape 5, reinforcing an inner protective layer 6 outside the wrapping tape, weaving an aluminum alloy shielding layer 7 outside the reinforcing inner protective layer, and coating a radiation heat dissipation cooling coating 8 on the outer surface of the aluminum alloy shielding layer; the coating is ZS-411 radiation heat dissipation cooling coating, the coating radiates heat of an object in an infrared ray mode, the temperature resistance range is-50-600 ℃, the coating is directly coated on the surface of an aluminum alloy shielding layer, the coating can automatically radiate heat to the outside at the emissivity of about 0.92 epsilon and the infrared wavelength band of 0.5-13.5 mu m, the heat exchange is accelerated, the internal temperature of a cable can be greatly reduced, and the heat stability and the service life of the cable are improved;

the video cable core is composed of a tin-plated copper conductor 9, a crosslinked polyethylene insulating layer 10 extruded outside the tin-plated copper conductor and a glass fiber tape 11 wrapped on the crosslinked polyethylene insulating layer, and has the performances of high temperature resistance, heat preservation and insulation, fire prevention, flame retardance, corrosion resistance, aging resistance, weather resistance, high strength and the like;

the signal wire core is composed of a copper conductor 12, a cross-linked polyethylene insulating layer 13 extruded outside the copper conductor and an aluminum-plastic composite belt 14 wrapped on the cross-linked polyethylene insulating layer, and has corrosion resistance, chemical resistance, moisture resistance and water resistance;

finally, a weather-resistant medium-density polyethylene outer sheath 15 is extruded outside the cable main body, the group of video cable cores and the group of signal cable cores together, the video cable cores, the signal cable cores and the cable are tightly combined and integrated, and the sheath material is a weather-resistant medium-density polyethylene sheath material, so that the cable has excellent waterproof, ultraviolet-resistant and weather-resistant aging performance;

as shown in fig. 2, the wrapping tape comprises an aluminum layer 16 and a polyimide layer 17 coated on one side surface of the aluminum layer; the thickness of the aluminum layer is 0.5-0.6mm, and the thickness of the polyimide layer is 1-2 mm; the design of combining the aluminum layer and the polyimide layer ensures that the heat insulation effect and the high temperature resistance effect of the cable are good, thereby prolonging the service life of the cable;

as shown in fig. 3, the reinforcing inner sheath 6 is annular, and is formed by arranging and combining a plurality of weather-resistant steel cores 18 into a circle, and then pouring weather-resistant sealant 19 at the gap between the weather-resistant steel cores and the weather-resistant steel cores for curing, and the sheath has good rigidity and high strength, so that the cable has a series of excellent performances such as high strength, high temperature resistance, corrosion resistance, fatigue resistance, creep resistance, electric conduction, heat transfer, small thermal expansion coefficient and the like; the weather-resistant sealant plays a role in fixing the steel core after being cured, has certain elasticity, and further improves the tear strength, the elongation at break, the tensile strength, the weather resistance and the high temperature resistance of the cable.

In conclusion, the cable reduces the workload caused by repeated laying of the control cable and the coaxial video cable, shortens the engineering time, reduces the engineering cost, and has excellent performances of ultraviolet radiation resistance, water resistance, weather aging resistance, tensile strength and the like.

The above description is only the preferred embodiment of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several modifications and improvements can be made, and these should also be considered as belonging to the protection scope of the present invention.

Claims

1. The utility model provides a soft high temperature resistant transmission signal cable which characterized in that: the cable comprises a cable main body, wherein a group of video wire cores and a group of signal wire cores are connected to the periphery of the cable main body; the group of video wire cores are positioned above and below the cable main body, and the group of signal wire cores are positioned on the left and right sides of the cable main body; the cable body comprises a cable core, the cable core is formed by twisting a pair of high-temperature-resistant insulating cable cores in pairs, a high-temperature-resistant nylon is filled in a gap of the cable core and then is wrapped by a wrapping tape, an inner protective layer is reinforced outside the wrapping tape, an aluminum alloy shielding layer is woven outside the reinforced inner protective layer, and then radiation heat dissipation cooling coating is coated on the outer surface of the aluminum alloy shielding layer; the video cable core consists of a tin-plated copper conductor, a crosslinked polyethylene insulating layer extruded outside the tin-plated copper conductor and a glass fiber belt wrapped on the crosslinked polyethylene insulating layer; the signal wire core is composed of a copper conductor, a crosslinked polyethylene insulating layer extruded outside the copper conductor and an aluminum-plastic composite belt wrapped on the crosslinked polyethylene insulating layer; and a weather-resistant medium-density polyethylene outer sheath is extruded outside the cable main body, the group of video wire cores and the group of signal wire cores.

2. The flexible high temperature resistant transmission signal cable of claim 1, wherein: the high-temperature-resistant insulated wire core is composed of an aluminum alloy conductor, a silane crosslinked polyethylene insulating layer extruded outside the aluminum alloy conductor and aluminum foil glass fiber cloth wrapped outside the silane crosslinked polyethylene insulating layer.

3. The flexible high temperature resistant transmission signal cable of claim 1, wherein: the wrapping tape comprises an aluminum layer and a polyimide layer coated on one side surface of the aluminum layer.

4. The flexible high temperature resistant transmission signal cable of claim 1, wherein: the reinforced inner protection layer is annular and is formed by pouring weather-proof sealing glue outside the weather-proof steel cores and in the gaps among the weather-proof steel cores and curing after a plurality of weather-proof steel cores are arranged and combined into a circle.

5. The flexible high temperature resistant transmission signal cable of claim 3, wherein: the thickness of the aluminum layer is 0.5-0.6 mm.

6. The flexible high temperature resistant transmission signal cable of claim 3, wherein: the thickness of the polyimide layer is 1-2 mm.