CN204926861U - High temperature resistant computer cable - Google Patents

Abstract

The utility model proposes a high-temperature-resistant computer cable, which includes multiple sets of wire cores, glass fiber high-temperature ropes, filling layers, aluminum-plastic composite tape wrapping sub-shielding layers, aluminum-plastic composite tape wrapping general shielding layers, polyvinyl chloride inner Sheath layer, heat insulation layer, steel tape armor layer and cross-linked polyethylene outer sheath layer, each group of wire cores includes copper core group, aluminum-plastic composite tape wrapping sub-shielding layer and filling in copper core group and aluminum-plastic composite tape The composite tape wraps the high temperature resistant material between the sub-shielding layers. Multiple groups of wire cores are evenly distributed in a circle centered on the glass fiber high temperature rope; the glass fiber high temperature rope has main properties such as high temperature resistance, corrosion resistance, and high strength. It is set online In the center of the core, each group of wire cores is filled with high temperature resistant materials. The PVC inner sheath layer, heat insulation layer and cross-linked polyethylene outer sheath layer can prevent external heat from entering the cable and improve the high temperature resistance of the cable. Performance and strength, improve its resistance to deformation, prolong its service life, and reduce the risk of computer cable insulation aging.

Description

A high temperature resistant computer cable

technical field

The utility model relates to the technical field of wires and cables, in particular to a high temperature resistant computer cable.

Background technique

With the continuous development of my country's economy, the demand for high temperature resistant computer cables in civil and industrial facilities such as large buildings, underground streets, large power stations and modern industrial and mining enterprises is also increasing. The overload capacity and short-circuit heat capacity of ordinary plastic insulated computer cables are small, and the long-term working temperature is 70°C or 90°C, which cannot withstand higher ambient temperatures; at the same time, the PVC insulation will shrink when heated, and the thermal cycle performance is poor, which affects the safety of circuit work. When ordinary plastic insulated computer cables are laid in places with oil and steam, the insulation layer will swell due to the presence of oil and chemical substances, resulting in aging, cracking, and loss of mechanical and physical properties, resulting in the scrapping of the wires; ordinary plastic insulation The mechanical strength of the computer cable insulation layer is relatively low, and it is easy to be bruised and bruised to cause power-on accidents; when ordinary plastic insulated computer cables are immersed in water, the dielectric loss of the insulation layer increases, the insulation resistance decreases, and the service life of the wire is affected; Ordinary Plastic insulated computer cables have poor flame retardancy. After adding flame retardants, the electrical insulation will be reduced, and a large amount of toxic and harmful smoke will be generated during combustion, which is extremely harmful to the environment, equipment and human life.

Utility model content

In order to solve the technical problems in the background technology, the utility model proposes a high-temperature-resistant computer cable, which has a simple structure, improves the high-temperature-resistant performance of the cable, and prolongs the service life of the cable.

The utility model proposes a high-temperature-resistant computer cable, which includes multiple sets of wire cores, glass fiber high-temperature ropes, filling layers, aluminum-plastic composite tape wrapping sub-shielding layers, aluminum-plastic composite tape wrapping general shielding layers, polyvinyl chloride inner Sheath layer, heat insulation layer, steel tape armor layer and cross-linked polyethylene outer sheath layer; multiple groups of wire cores are evenly distributed in a circle with the glass fiber high temperature rope as the center, and each group of wire cores includes copper core groups, aluminum The sub-shielding layer wrapped with plastic composite tape and the high temperature resistant material filled between the copper core group and the sub-shielding layer wrapped with aluminum-plastic composite tape. The copper core group includes two twisted copper cores and the poly Vinyl insulation layer; the filling layer wraps the outer side of the wire core, the aluminum-plastic composite tape wrapping general shielding layer wraps outside the filling layer, the PVC inner sheath layer wraps the aluminum-plastic composite tape wrapping general shielding layer outside, and the heat insulation layer wraps On the outside of the PVC inner sheath layer, the steel tape armor layer is wrapped on the outside of the heat insulation layer, and the cross-linked polyethylene outer sheath layer is wrapped on the outside of the steel tape armor layer.

Preferably, there are first cooling holes arranged along its circumference in the cross-linked polyethylene outer sheath layer, and the cross-section of the first cooling holes is circular

Preferably, second cooling holes arranged along its circumference are provided in the polyvinyl chloride inner sheath layer, and the cross-section of the second cooling holes is circular.

Preferably, it also includes a heat conduction rope, and the heat conduction rope is arranged between any adjacent wire cores.

Preferably, the glass fiber high-temperature rope is circumscribed to each group of wire cores.

Preferably, the outer side of each group of wire cores is against the overall shielding layer wrapped with the aluminum-plastic composite tape.

Preferably, the shielding density of the individual shielding layer wrapped with aluminum-plastic composite tape and the total shielding layer wrapped with aluminum-plastic composite tape is not less than 85%.

The beneficial effects of the utility model are: multiple groups of wire cores are evenly distributed in a circle with the glass fiber high-temperature rope as the center, and each group of wire cores includes a copper core group, an aluminum-plastic composite tape wrapped sub-shielding layer and filled in the copper core group and Aluminum-plastic composite tape is wrapped around the high-temperature-resistant material between the sub-shielding layers. The copper core group includes two twisted copper cores and a polyethylene insulating layer wrapped outside the copper core; the filler layer is wrapped around the outside of the wire core, and the aluminum-plastic composite tape The wrapping overall shielding layer is wrapped on the outer side of the filling layer, the PVC inner sheath layer is wrapped on the outer side of the aluminum-plastic composite tape wrapping overall shielding layer, the heat insulation layer is wrapped on the outer side of the PVC inner sheath layer, and the steel tape armor layer Wrapped on the outside of the heat insulation layer, the cross-linked polyethylene outer sheath layer is wrapped on the outside of the steel tape armor layer; the glass fiber high-temperature rope has main properties such as high temperature resistance, corrosion resistance, and high strength, and is set at the center of the wire core. The core is filled with high-temperature resistant materials, which improves the high-temperature resistance and strength of the cable, improves its anti-deformation performance, prolongs its service life, and reduces the risk of computer cable insulation aging. The PVC inner sheath layer, heat insulation layer and The XLPE outer sheath prevents external heat from entering the cable. In the cross-linked polyethylene outer sheath layer, there are first heat dissipation holes arranged along its circumference. When the external temperature is high, the first heat dissipation holes can conduct part of the heat of the cable to the outside, further improving its high temperature resistance and service life. In the PVC inner sheath layer, there are circular second heat dissipation holes arranged along its circumference, which can greatly improve the high temperature resistance and heat dissipation performance of the computer cable by transferring the heat emitted by the wire core to the outside. A heat conduction rope is provided between any adjacent wire cores to improve the heat dissipation performance of the cable.

Description of drawings

Fig. 1 is a structural schematic diagram of a high temperature resistant computer cable proposed by the utility model.

Detailed ways

As shown in Figure 1, Figure 1 is a structural schematic diagram of a high temperature resistant computer cable proposed by the utility model.

Referring to Fig. 1, the utility model proposes a high-temperature-resistant computer cable, including four sets of wire cores 2, glass fiber high-temperature rope 1, heat-conducting rope 3, filling layer 4, aluminum-plastic composite tape wrapping total shielding layer 5, polyvinyl chloride Inner sheath layer 6, heat insulation layer 7, steel tape armor layer 8 and cross-linked polyethylene outer sheath layer 9.

Four sets of wire cores 2 are evenly distributed in a circle with the glass fiber high temperature rope 1 as the center, and the glass fiber high temperature rope 1 is circumscribed with each set of wire cores 2; each set of wire cores 2 includes a copper core group, aluminum-plastic composite tape wrapping The sub-shielding layer 24 and the high temperature resistant material 23 filled between the copper core group and the aluminum-plastic composite tape wrapping sub-shielding layer 24, the copper core group includes two stranded copper cores 21 and the poly Ethylene insulation layer 22; heat conduction rope 3 is arranged between any adjacent wire cores 2; filling layer 4 is wrapped outside the wire core 2, and aluminum-plastic composite tape is wrapped around the total shielding layer 5 wrapped outside the filling layer 4, and each group of wire cores 2 The outer side is offset with the total shielding layer 5 wrapped by the aluminum-plastic composite tape. The inner sheath layer 6 is wrapped on the outer side of the overall shielding layer 5 wrapped with aluminum-plastic composite tape, the heat insulation layer 7 is wrapped on the outer side of the polyvinyl chloride inner sheath layer 6, and the steel tape armor layer 8 is wrapped on the outer side of the heat insulation layer 7. The combined polyethylene outer sheath layer 9 is wrapped on the outside of the steel tape armor layer 8 .

In the specific design process, first cooling holes 91 arranged along the circumference of the cross-linked polyethylene outer sheath layer 9 are provided, and the cross-section of the first cooling holes 91 is circular.

In the specific design process, there are second cooling holes 61 arranged along its circumference in the PVC inner sheath layer 6 , and the cross-section of the second cooling holes 61 is circular.

In the specific design process, the shielding density of the sub-shielding layer 24 wrapped with aluminum-plastic composite tape and the overall shielding layer 5 wrapped with aluminum-plastic composite tape is not less than 85%.

The utility model proposes a high-temperature-resistant computer cable, four groups of wire cores 2 are evenly distributed in a circle around the glass fiber high-temperature rope 1, and each group of wire cores 2 includes a copper core group and an aluminum-plastic composite tape wrapped sub-shielding layer 24 and the high temperature resistant material 23 filled between the copper core group and the aluminum-plastic composite tape wrapping sub-shielding layer 24, the copper core group includes two twisted copper cores 21 and a polyethylene insulating layer 22 wrapped outside the copper core The filling layer 4 is wrapped on the outer side of the wire core 2, the aluminum-plastic composite tape wrapping general shielding layer 5 is wrapped on the outside of the filling layer 4, the polyvinyl chloride inner sheath layer 6 is wrapped on the outer side of the aluminum-plastic composite tape wrapping general shielding layer 5, and The heat layer 7 is wrapped on the outer side of the PVC inner sheath layer 6, the steel tape armor layer 8 is wrapped on the outer side of the heat insulation layer 7, and the cross-linked polyethylene outer sheath layer 9 is wrapped on the outer side of the steel tape armor layer 8; the glass fiber The high-temperature rope 1 has main properties such as high-temperature resistance, corrosion resistance, and high strength. Deformation performance, prolong its service life, reduce the risk of computer cable insulation aging, PVC inner sheath layer 6, heat insulation layer 7 and cross-linked polyethylene outer sheath layer 9 can prevent external heat from entering the cable. In the cross-linked polyethylene outer sheath layer 9, there are first heat dissipation holes 91 arranged along its circumference. When the external temperature is high, the first heat dissipation holes 91 can conduct part of the heat of the cable to the outside, further improving its performance. High temperature performance and service life. In the PVC inner sheath layer 6, there is a circular second heat dissipation hole 61 arranged along its circumference, which can greatly improve the high temperature resistance and heat dissipation performance of the computer cable by transferring the heat emitted by the core 2 to the outside. . A heat conduction rope 3 is provided between any adjacent wire cores 2 to improve the heat dissipation performance of the cable.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. Any equivalent replacement or change of the new technical solution and the concept of the utility model shall be covered by the protection scope of the utility model.

Claims (7)

1. A high-temperature-resistant computer cable is characterized in that it comprises multiple groups of wire cores (2), glass fiber high-temperature ropes (1), filling layer (4), aluminum-plastic composite tape wrapping total shielding layer (5), poly Vinyl chloride inner sheath layer (6), heat insulation layer (7), steel tape armor layer (8) and cross-linked polyethylene outer sheath layer (9); (1) The center is uniformly distributed in a circle, and each group of wire cores (2) includes a copper core group, an aluminum-plastic composite tape wrapping sub-shielding layer (24) and a sub-shielding layer filled in the copper core group and aluminum-plastic composite tape wrapping The high temperature resistant material (23) between the layers (24), the copper core group includes two stranded copper cores (21) and the polyethylene insulating layer (22) wrapped in the copper core (21); the filling layer (4 ) wrapped on the outside of the wire core (2), the aluminum-plastic composite tape wrapping general shielding layer (5) is wrapped on the outside of the filling layer (4), and the PVC inner sheath layer (6) is wrapped around the aluminum-plastic composite tape wrapping general shielding layer layer (5), the heat insulation layer (7) is wrapped on the outside of the polyvinyl chloride inner sheath layer (6), the steel tape armor layer (8) is wrapped on the outside of the heat insulation layer (7), and the cross-linked polyethylene outer sheath The jacket layer (9) is wrapped on the outside of the steel tape armor layer (8). 2. The high temperature resistant computer cable according to claim 1, characterized in that, in the cross-linked polyethylene outer sheath layer (9), there are first cooling holes (91) arranged along its circumference, the first cooling holes The cross section of the hole (91) is circular. 3. The high temperature resistant computer cable according to claim 2, characterized in that, in the polyvinyl chloride inner sheath layer (6), there are second cooling holes (61) arranged along its circumference, and the second cooling holes (61) has a circular cross-section. 4. The high temperature resistant computer cable according to claim 3, characterized in that it further comprises a heat conduction rope (3), and the heat conduction rope (3) is arranged between any adjacent wire cores (2). 5. The high temperature resistant computer cable according to any one of claims 1-4, characterized in that the glass fiber high temperature rope (1) is circumscribed to each set of wire cores (2). 6. The high temperature resistant computer cable according to any one of claims 1-4, characterized in that the outer side of each set of wire cores (2) offsets the overall shielding layer (5) wrapped with aluminum-plastic composite tape. 7. The high-temperature-resistant computer cable according to any one of claims 1-4, characterized in that, the aluminum-plastic composite tape is wrapped around the individual shielding layer (24) and the aluminum-plastic composite tape is wrapped around the total shielding layer (5) The shielding density is not less than 85%.