CN214588109U

CN214588109U - Novel high strength aerial [ insulated ] cable with strengthening rib

Info

Publication number: CN214588109U
Application number: CN202022383306.3U
Authority: CN
Inventors: 张孝龙; 陈鑫磊; 陈海
Original assignee: Sichuan New Century Cable Co ltd
Current assignee: Sichuan New Century Cable Co ltd
Priority date: 2020-10-23
Filing date: 2020-10-23
Publication date: 2021-11-02
Anticipated expiration: 2030-10-23

Abstract

A novel high-strength overhead cable with reinforcing ribs comprises a cable core, an insulating layer, a shielding layer, a reinforcing layer and a sheath layer from inside to outside; the cable core comprises a plurality of conductors stranded into a bundle, and gaps among the conductors are filled with isolation belts; the insulating layer is made of glass fiber, and a silicone rubber layer is arranged on the inner surface of the insulating layer; the shielding layer is woven by copper wires, and a waterproof layer is arranged on the outer surface of the shielding layer; the reinforced layer is uniformly provided with a plurality of through holes along the circumferential direction, reinforcing ribs are arranged in the through holes in a penetrating manner, the reinforcing ribs are made of fiber reinforced composite materials, the inner surface of the reinforced layer is provided with a pressure-resistant layer, and the pressure-resistant layer is made of glass fiber reinforced plastics, magnesium oxychloride glue and modified carbon materials; the inner surface of the sheath layer is coated with a magnesium hydroxide flame retardant coating. The utility model discloses a set up fibre reinforced composite's strengthening rib in strengthening layer inside, can provide the support to each position of cable circumference, improve structural stability, strengthening layer internal surface sets up the compressive layer and can further improve cable compressive property, guarantees cable strength.

Description

Novel high strength aerial [ insulated ] cable with strengthening rib

Technical Field

The utility model relates to a cable manufacture technical field is relevant with a novel high strength aerial [ insulated ] cable with strengthening rib very much.

Background

The cable is generally a cable similar to a rope formed by twisting at least two groups of several or groups of conducting wires, and is widely used for electric power, communication and related transmission purposes. At present, with the development of society, the demand of cable is constantly rising, and people also are higher and higher to the requirement of cable, especially in the environment of aerial cable, and when the cable received external stress effect, its inside wire took place the displacement easily, leads to the local high temperature of cable, influences the communication effect of cable. Therefore, further innovation is needed on the basis of the existing cable structure, and a reinforced overhead cable is provided.

SUMMERY OF THE UTILITY MODEL

To the problem that relevant prior art exists, the utility model provides a novel high strength aerial [ insulated ] cable with strengthening rib, through the strengthening rib that sets up fibre reinforced composite in the strengthening layer inside, can provide the support to each position of cable circumference, improve structural stability, strengthening layer internal surface sets up the compressive layer and can further improve cable compressive property, guarantees cable strength.

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

a novel high-strength overhead cable with reinforcing ribs comprises a cable core, an insulating layer, a shielding layer, a reinforcing layer and a sheath layer from inside to outside;

the cable core comprises a plurality of conductors stranded into a bundle, and gaps among the conductors are filled with isolation belts;

the insulating layer is made of glass fiber, and a silicone rubber layer is arranged on the inner surface of the insulating layer;

the shielding layer is woven by copper wires, and a waterproof layer is arranged on the outer surface of the shielding layer;

the reinforced layer is uniformly provided with a plurality of through holes along the circumferential direction, reinforcing ribs are arranged in the through holes in a penetrating manner, the reinforcing ribs are made of fiber reinforced composite materials, the inner surface of the reinforced layer is provided with a pressure-resistant layer, and the pressure-resistant layer is made of glass fiber reinforced plastics, magnesium oxychloride glue and modified carbon materials;

the inner surface of the sheath layer is coated with a magnesium hydroxide flame retardant coating.

Furthermore, the isolation belt adopts a polyester-imide film.

Furthermore, the conductor adopts aluminium-clad steel wire, and the outer surface of the conductor is coated with a zinc layer.

Furthermore, the waterproof layer adopts an aluminum-plastic composite belt.

Further, the reinforcing ribs are symmetrically arranged.

The utility model discloses beneficial effect:

1. the reinforcing rib of the fiber reinforced composite material is arranged in the reinforcing layer, so that support can be provided for all positions in the circumferential direction of the cable, the structural stability is improved, the pressure resistance of the cable can be further improved by arranging the pressure-resistant layer on the inner surface of the reinforcing layer, and the strength of the cable is ensured.

2. Add the median in the gap between the conductor, it is fixed to ensure the clearance between each conductor when the cable uses, prevents to lead to the local high temperature of cable after the conductor shifts, influences the communication effect of cable, and restrictive coating internal surface scribbles magnesium hydrate fire retardant coating, gets up the conductor protection, solves the cable because need use for a long time and long-time naked leak, has the problem of potential safety hazard.

3. The polyester imide film adopted by the isolation belt has the advantages of excellent thermal stability, chemical corrosion resistance and mechanical property, so that the heat resistance and tensile strength of the conductor are greatly improved, and the technical index and operational reliability of the cable are improved.

4. The conductor adopts aluminium clad steel wire, and the electric conductivity is high, reduces transmission of electricity loss, and energy-conserving effect is excellent, and the conductor outer surface coating has the zinc layer, prevents that the conductor from taking place to corrode after long-term the use, influences life.

5. The waterproof layer adopts the plastic-aluminum composite tape, can effectively isolate external environment and cause destruction to the cable, and water-proof effects is good.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic cross-sectional structure of the present invention.

Fig. 3 is a schematic view of a portion a of fig. 2.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings, but the described embodiments of the present invention are some embodiments of the present invention, not all embodiments.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the product of the present invention is usually placed when in use, and this is only for the convenience of description of the present invention and simplification of the description. The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The terms "parallel", "perpendicular", etc. do not require that the components be absolutely parallel or perpendicular, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; either directly or indirectly through intervening media, or through both elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

As shown in fig. 1 to 3, a novel high-strength overhead cable with reinforcing ribs comprises a cable core 1, an insulating layer 2, a shielding layer 3, a reinforcing layer 4 and a sheath layer 5 from inside to outside;

the cable core 1 comprises a plurality of conductors 101 which are twisted into a bundle, and gaps among the conductors 101 are filled with isolation belts 102;

the insulating layer 2 is made of glass fiber, and a silicone rubber layer 201 is arranged on the inner surface of the insulating layer 2;

the shielding layer 3 is woven by copper wires, and a waterproof layer 301 is arranged on the outer surface of the shielding layer 3;

the reinforcing layer 4 is uniformly provided with a plurality of through holes 401 along the circumferential direction, reinforcing ribs 402 penetrate through the through holes 401, the reinforcing ribs 402 are made of fiber reinforced composite materials, the inner surface of the reinforcing layer 4 is provided with a pressure-resistant layer 403, and the pressure-resistant layer 403 is made of glass fiber reinforced plastics, magnesium oxychloride glue and modified carbon materials;

the inner surface of sheath layer 5 is coated with magnesium hydroxide flame retardant coating 501.

When the cable is produced, the conductors 101 are arranged, the isolation belt 102 is added into gaps among the conductors 101 to form the cable core 1, the gap among the conductors 101 is ensured to be fixed when the cable is used, the phenomenon that the local temperature of the cable is overhigh after the conductors 101 are displaced and the communication effect of the cable is influenced is prevented, the cable core 1 is wrapped by the insulating layer 2 through the extrusion wrapping process after the silicone rubber layer 201 is coated on the inner surface of the insulating layer 2, the silicone rubber layer has good bending performance and low-temperature performance and is not easy to damage and crack, the shielding layer 3 is wrapped outside the insulating layer 2 through the wrapping process, the waterproof layer 301 is arranged on the outer surface of the shielding layer 3, the shielding layer 3 woven by copper wires can play a role in shielding electromagnetic interference resistance, the safety is improved by preventing the occurrence of electric leakage, the cable can be suitable for an external humid environment by arranging the waterproof layer 301, the service life of the cable is prolonged, the reinforcing ribs 402 made of the fiber reinforced composite material are arranged inside the reinforcing layer 4, and strengthening rib 402 symmetry sets up, can provide the support to cable circumference each position, prevent that traction force from leading to the conductor 101 fracture excessively, improve structural stability, can further improve cable compressive property through set up compressive layer 403 at strengthening layer 4 internal surface, compressive layer 403 adopts the combined material who is made by glass steel, magnesium oxychloride glue and modified carbon material, have the intensity characteristic of multiple material concurrently, guarantee cable strength, restrictive coating 5 internal surface scribbles magnesium hydrate fire retardant coating 501, make the cable have certain fire-retardant effect, protect conductor 101, solve the cable because need use for a long time and long-time naked hourglass outside, there is the problem of potential safety hazard.

Furthermore, the polyester imide film used for the isolation belt 102 has the advantages of excellent thermal stability, chemical resistance and mechanical properties, so that the heat resistance and tensile strength of the conductor 101 are greatly improved, and the technical index and operational reliability of the cable are improved.

Furthermore, the conductor 101 is made of aluminum clad steel wires, so that the conductivity is high, the transmission loss is reduced, the energy-saving effect is excellent, and the zinc layer 103 is coated on the outer surface of the conductor 101 to prevent the conductor 101 from being corroded after long-term use and affecting the service life.

Furthermore, waterproof layer 301 adopts the compound area of plastic-aluminum, can effectively completely cut off external environment and cause the destruction to the cable, and water-proof effects is good.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and it is obvious that those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A novel high-strength overhead cable with reinforcing ribs is characterized by comprising a cable core (1), an insulating layer (2), a shielding layer (3), a reinforcing layer (4) and a sheath layer (5) from inside to outside;

the cable core (1) comprises a plurality of conductors (101) which are twisted into a bundle, and gaps among the conductors (101) are filled with isolation belts (102);

the insulating layer (2) adopts glass fiber, and a silicone rubber layer (201) is arranged on the inner surface of the insulating layer (2);

the shielding layer (3) is woven by adopting copper wires, and a waterproof layer (301) is arranged on the outer surface of the shielding layer (3);

the reinforcing layer (4) is uniformly provided with a plurality of through holes (401) along the circumferential direction, reinforcing ribs (402) penetrate through the through holes (401), the reinforcing ribs (402) are made of fiber reinforced composite materials, the inner surface of the reinforcing layer (4) is provided with a pressure-resistant layer (403), and the pressure-resistant layer (403) is made of glass fiber reinforced plastics, magnesium oxychloride glue and modified carbon materials;

the inner surface of the sheath layer (5) is coated with a magnesium hydroxide flame retardant coating (501).

2. The new high strength overhead cable with reinforcing ribs of claim 1, wherein: the isolation belt (102) adopts a polyester-imide film.

3. The new high strength overhead cable with reinforcing ribs of claim 1, wherein: the conductor (101) adopts an aluminum-clad steel wire, and the outer surface of the conductor (101) is coated with a zinc layer (103).

4. The new high strength overhead cable with reinforcing ribs of claim 1, wherein: the waterproof layer (301) adopts an aluminum plastic composite tape.

5. The new high strength overhead cable with reinforcing ribs of claim 1, wherein: the reinforcing ribs (402) are symmetrically arranged.