CN210640010U - Aluminum alloy conductor interlocking armored variable frequency cable - Google Patents

Abstract

The utility model discloses a chain armor variable frequency cable of aluminum alloy conductor, the chain armor variable frequency cable of aluminum alloy conductor includes cable core, cable band layer, cable copper strips shielding layer, the interior sheath of cable, the chain armor of cable metal, cable oversheath. The cable cladding layer is coated on the outer layer of the cable core, the cable copper strip shielding layer is arranged on the outer layer of the cable cladding layer, the cable inner protection layer is arranged on the outer layer of the cable copper strip shielding layer, the cable metal interlocking armor layer is arranged on the outer layer of the cable inner protection layer, and the cable outer protective sleeve is arranged on the outer layer of the cable metal interlocking armor layer. The utility model discloses electric conductive property, bending property, creep resistance and the corrosion resisting property of cable have been improved widely.

Description

Aluminum alloy conductor interlocking armored variable frequency cable

Technical Field

The utility model relates to the technical field of cables, especially, relate to a chain armor variable frequency cable of aluminum alloy conductor.

Background

Aluminum alloy cables have been used in large quantities in foreign industry and civil buildings since the last 70 th century, but currently, aluminum cables are limited to be used in many construction places as a large country with rich aluminum resources and deficient copper resources.

1870 s, with the widespread use of electricity, the development of science and technology has advanced dramatically, and various new technologies have emerged rapidly and are used in industrial production, greatly promoting the economic development. With the continuous development of economic construction in China and the acceleration of urbanization process, electricity becomes an indispensable part of production and life of people. At present, the main power source in China is thermal power generation, and heat energy generated by burning solid, liquid and gas fuels such as coal, petroleum and natural gas is converted into electric energy through a power generation power device. With the rapid development of national economy, the power consumption is continuously increased, and the application of the cable is more and more extensive.

At present, the shortage of copper resources in China is caused, and aluminum is advocated to replace copper by many people in the wire and cable industry. However, pure aluminum cables have many disadvantages, such as: the cable has poor conductivity and bending performance, low creep resistance and corrosion resistance and the like, and cannot ensure that the cable keeps stable continuous performance when overloaded and overheated for a long time, so the improvement is urgently needed.

SUMMERY OF THE UTILITY MODEL

In view of the above prior art's shortcoming, the utility model aims to provide an aluminum alloy conductor chain armor variable frequency cable for the electric conductive property and the bending property of the cable of solving among the prior art are not good, and creep resistance performance and corrosion resisting property are not high, can't guarantee that the cable keeps the stable problem of continuity performance when transshipping for a long time and overheated.

For realizing above-mentioned purpose and other relevant purposes, the utility model provides a chain armor variable frequency cable of aluminum alloy conductor, the chain armor variable frequency cable of aluminum alloy conductor includes:

at least one cable core; and

the cable wrapping layer is wrapped on the outer layer of the cable core;

the cable copper strip shielding layer is arranged on the outer layer of the cable belting layer;

the cable inner sheath is arranged on the outer layer of the cable copper strip shielding layer;

the cable metal interlocking armor layer is arranged on the outer layer of the cable inner sheath;

and the cable outer sheath is arranged on the outer layer of the metal interlocking armor layer of the cable.

In an embodiment of the present invention, the cable core includes a conductor and an insulating layer, the insulating layer is wrapped on the outer layer of the conductor, and the outer layer of the insulating layer is wrapped with the cable wrapping layer.

In an embodiment of the present invention, the conductor is a rare earth aluminum alloy conductor.

In an embodiment of the present invention, the insulating layer is a crosslinked polyethylene insulating layer.

In an embodiment of the present invention, the cable covering layer is a low smoke zero halogen flame retardant covering layer.

In an embodiment of the present invention, the cable copper strip shielding layer is an oxygen-free pure copper strip with a thickness of 0.1 mm.

In an embodiment of the present invention, the cable inner sheath is a low-smoke halogen-free flame-retardant inner sheath.

In an embodiment of the present invention, the metal chain armor layer of the cable is a seamless welded aluminum strip longitudinally wrapped in a spiral shape.

In an embodiment of the present invention, the cable outer sheath is a low-smoke halogen-free flame-retardant outer sheath.

In an embodiment of the present invention, the aluminum alloy conductor interlocked armored variable frequency cable includes at least three cable cores.

As above, the utility model discloses a chain armor variable frequency cable of aluminum alloy conductor has following beneficial effect:

the utility model discloses an interlocking armor variable frequency cable of aluminum alloy conductor includes: cable core, cable band layer, cable copper strips shielding layer, the interior sheath of cable, the chain armor of cable metal, cable oversheath, the utility model discloses a chain armor variable frequency cable of aluminum alloy conductor adds copper, iron, magnesium, silicon and rare earth element etc. on pure aluminium's basis. The various elements are subjected to advanced processes such as special process synthesis, annealing treatment and the like, so that the defects of the pure aluminum cable are overcome, the conductivity, the bending property, the creep resistance and the corrosion resistance of the cable are greatly improved, and the connection stability of the cable even if the cable is overloaded and overheated for a long time is effectively ensured.

The utility model discloses because the tombarthite aluminum alloy conductor will carry out annealing treatment when carrying out the extrusion molding, the conductor is handled through the stress recovery of recrystallization for electric conductive property improves to some extent for pure aluminium, and the conductivity can reach 61.5% IACS, and the performance is superior to pure aluminium more.

Compared with the traditional copper cable, the utility model has stronger flexibility, the pulling force required during installation is much smaller than that of the copper cable, the bending property is realized, the rare earth aluminum alloy cable is easier to bend in the installation process, the installation cost is effectively reduced, and the accident risk is reduced; the creep resistance is improved by 300% compared with pure aluminum.

The utility model discloses a corrosion resisting property is higher, and rare metal has been added to the aluminium among the fire-retardant low smoke and zero halogen metal chain armoured cable of tombarthite aluminum alloy, further improves metal material's corrosion resisting ability, has reduced the potential difference between the different metals.

The utility model discloses a fire-retardant low smoke and zero halogen material has fire-retardant, fire-resistant, environmental protection, low cigarette, nontoxic, when the conflagration breaing out, can ensure personal safety.

The utility model discloses install the chain armor of one deck cable metal additional in the cable jacket, guaranteed the mechanical strength of cable, can guarantee again that the cable can not intake for the cable life-span strengthens greatly.

The utility model discloses printing opacity when burning is high, can reach 99%, only produces trace smog to reduce the harm to human body and instrument and equipment, reach the fire-retardant A level requirement of low smoke and zero halogen.

Drawings

Fig. 1 is a schematic structural diagram of an aluminum alloy conductor interlocking armored variable frequency cable provided in an embodiment of the present application.

The element numbers are as follows:

1. conductor

2. Insulating layer

3. Cable belting layer

4. Cable copper strip shielding layer

5. Cable inner sheath

6. Metal chain armor layer of cable

7. Cable outer sheath

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

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.

It should be noted that the drawings provided in the following embodiments are only for illustrating the basic concept of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the form, amount and ratio of the components in actual implementation may be changed at will, and the layout of the components may be more complicated.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an aluminum alloy conductor-interlocked armored frequency conversion cable according to an embodiment of the present application. The utility model provides a chain armor variable frequency cable of aluminum alloy conductor, the chain armor variable frequency cable of aluminum alloy conductor includes but is not limited to: the cable comprises at least one cable core, a cable wrapping layer 3, a cable copper strip shielding layer 4, a cable inner protection layer 5, a cable metal interlocking armor layer 6 and a cable outer sheath 7. The cable wrapping layer 3 is wrapped on the outer layer of the cable core. The cable copper strip shielding layer 4 is arranged on the outer layer of the cable belting layer 3. The cable inner sheath layer 5 is arranged on the outer layer of the cable copper strip shielding layer 4. The metal interlocking armor layer 6 of the cable is arranged on the outer layer of the cable inner sheath layer 5. The cable outer sheath 7 is arranged on the outer layer of the cable metal interlocking armor layer 6. Specifically, the cable inner sheath 5 may be, but is not limited to, a low-smoke halogen-free flame-retardant inner sheath. The metal interlocking armor layer is uniformly arranged on the coating layer around the cable inner sheath 5.

Referring to fig. 1, specifically, the cable core includes a conductor 1 and an insulating layer 2, the insulating layer 2 is coated on an outer layer of the conductor 1, and the insulating layer 2 is extruded with the cable wrapping layer 3. The conductor 1 is a rare earth aluminum alloy conductor. The insulating layer 2 is a crosslinked polyethylene insulating layer. The cable wrapping layer 3 is a low-smoke halogen-free flame-retardant wrapping layer. The cable copper strip shielding layer 4 is an oxygen-free pure copper strip with the thickness of 0.1 mm. The cable inner sheath 5 is a low-smoke halogen-free flame-retardant inner sheath. The cable metal interlocking armor layer 6 is a seamless welded aluminum strip longitudinally wrapped spiral. The cable outer sheath 7 is a low-smoke halogen-free flame-retardant outer sheath. The aluminum alloy conductor interlocked armored variable frequency cable comprises at least three cable cores.

Referring to fig. 1, the aluminum alloy conductor chain armored variable frequency cable of the present invention comprises a cable core, a cable tape layer 3, a cable copper tape shielding layer 4, a cable inner protection layer 5, a cable metal chain armored layer 6, and a cable outer protection layer 7 from inside to outside in sequence. The cable core comprises a conductor 1 and an insulating layer 2 from inside to outside in sequence. In the present embodiment, the cable core is composed of six in three sizes, and in other embodiments, the cable core may be any one of three cores and four cores. In the embodiment, the conductor 1 is formed by twisting a rare earth aluminum alloy conductor and then performing high-temperature annealing treatment, so that the mechanical and electrical properties of the conductor can be improved. The insulating layer 2 is made of cross-linked polyethylene insulating material, and has the advantages of simple structure, light weight, good heat resistance, strong load capacity, no melting, chemical corrosion resistance and high mechanical strength. The cable inner sheath 5 is made of flame-retardant low-smoke halogen-free material, and is characterized by low smoke, no halogen and capability of preventing the spread of fire. The cable copper strip shielding layer 4 is made of a copper strip material, the cable metal interlocking armor layer 6 is formed by longitudinally wrapping an aluminum strip in a seamless welding mode, and is wrapped around the insulating layer 2 in a spiral mode, so that the insulating wire core is effectively prevented from being damaged, and water can be prevented from entering the cable wire core. The cable outer sheath 7 is made of a flame-retardant low-smoke halogen-free material, so that the whole cable is a flame-retardant, low-smoke, halogen-free, non-toxic and environment-friendly waterproof cable.

To sum up, the utility model discloses an aluminum alloy conductor chain armor variable frequency cable includes: cable core, cable band layer 3, cable copper tape shielding layer 4, cable inner sheath 5, the chain armor of cable metal 6, cable oversheath 7, the utility model discloses a chain armor variable frequency cable of aluminum alloy conductor adds copper, iron, magnesium, silicon and rare earth element etc. on pure aluminium's basis. The various elements are subjected to advanced processes such as special process synthesis, annealing treatment and the like, so that the defects of the pure aluminum cable are overcome, the conductivity, the bending property, the creep resistance and the corrosion resistance of the cable are greatly improved, and the connection stability of the cable even if the cable is overloaded and overheated for a long time is effectively ensured.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The utility model provides an interlocking armor variable frequency cable of aluminum alloy conductor which characterized in that, the interlocking armor variable frequency cable of aluminum alloy conductor includes:

at least one cable core; and

the cable wrapping layer (3) is wrapped on the outer layer of the cable core;

the cable copper strip shielding layer (4) is arranged on the outer layer of the cable belting layer (3);

the cable inner protective layer (5) is arranged on the outer layer of the cable copper strip shielding layer (4);

the cable metal interlocking armor layer (6) is arranged on the outer layer of the cable inner sheath (5);

and the cable outer sheath (7) is arranged on the outer layer of the cable metal interlocking armor layer (6).

2. The aluminum alloy conductor interlocking armored frequency conversion cable according to claim 1, wherein: the cable core comprises a conductor (1) and an insulating layer (2), the insulating layer (2) is coated on the outer layer of the conductor (1), and the insulating layer (2) is extruded with the cable wrapping layer (3).

3. The aluminum alloy conductor interlocking armored frequency conversion cable according to claim 2, wherein: the conductor (1) is a rare earth aluminum alloy conductor.

4. The aluminum alloy conductor interlocking armored frequency conversion cable according to claim 2, wherein: the insulating layer (2) is a cross-linked polyethylene insulating layer.

5. The aluminum alloy conductor interlocking armored frequency conversion cable according to claim 1, wherein: the cable wrapping tape layer (3) is a low-smoke halogen-free flame-retardant wrapping tape layer.

6. The aluminum alloy conductor interlocking armored frequency conversion cable according to claim 1, wherein: the cable copper strip shielding layer (4) is an oxygen-free pure copper strip with the thickness of 0.1 mm.

7. The aluminum alloy conductor interlocking armored frequency conversion cable according to claim 1, wherein: the cable inner sheath (5) is a low-smoke halogen-free flame-retardant inner sheath.

8. The aluminum alloy conductor interlocking armored frequency conversion cable according to claim 1, wherein: the metal interlocking armor layer (6) of the cable is in a spiral shape formed by longitudinally wrapping seamless welded aluminum strips.

9. The aluminum alloy conductor interlocking armored frequency conversion cable according to claim 1, wherein: the cable outer sheath (7) is a low-smoke halogen-free flame-retardant outer sheath.

10. The aluminum alloy conductor interlocking armored frequency conversion cable according to claim 1, wherein: the aluminum alloy conductor interlocked armored variable frequency cable comprises at least three cable cores.

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