CN216250134U

CN216250134U - Cable with improved insulation

Info

Publication number: CN216250134U
Application number: CN202121921939.3U
Authority: CN
Inventors: 辛东生
Original assignee: Yangzhou Ruitianda Special Cable Co ltd
Current assignee: Yangzhou Ruitianda Special Cable Co ltd
Priority date: 2021-08-17
Filing date: 2021-08-17
Publication date: 2022-04-08
Anticipated expiration: 2031-08-17

Abstract

The utility model relates to the technical field of cables, in particular to a cable which comprises a protective layer, wherein the protective layer is made of PVC (polyvinyl chloride), a corrosion-proof layer is arranged on the inner side of the protective layer, a structural reinforcing layer is arranged in the corrosion-proof layer, a flame-retardant layer is arranged in the structural reinforcing layer, and a copper core layer, an optical fiber layer and a telephone wire layer are sequentially arranged in the flame-retardant layer from left to right in a clockwise direction. The utility model has the advantages that: this cable, especially marine cable, with power line copper sandwich layer, three main line integration in network line fiber layer and the marine communication telephone line layer are a cable, very big saving the space in the cabin, inside being provided with the water erosion prevention layer in its outside protective layer, the water erosion prevention layer is worked out by zinc-plated alloy steel wire and is formed, mode through the sacrificial anode, copper in the protection electricity core is not corroded, construct the armor of cost cable by water erosion prevention layer and structure enhancement layer, the weight of totality has been saved, easy to assemble and transport.

Description

Cable with improved insulation

Technical Field

The utility model relates to the technical field of cables, in particular to a cable.

Background

The cable includes power cable, control cable, compensation cable, shielding cable, high-temperature cable, computer cable, signal cable, coaxial cable, fire-resistant cable, marine cable, mining cable, aluminum alloy cable and the like. They are composed of single or multi-strand wires and insulating layers, and are used for connecting circuits, electric appliances and the like. The marine cable is a special wire cable and is mainly used for power supply, control and communication of various ships, water platforms, ports and the like in rivers, lakes and seas. Has the advantages of water resistance, flame retardance, corrosion resistance, acid and alkali resistance, softness, easy bending and the like. With the development of the ship industry, the ship cable is separated from the common cable, becomes a special cable type, and is continuously developed. At present, the marine cable has more than ten varieties and tens of thousands of specifications. The marine cable has many advantages compared with the common cable, especially the marine cable is in a hub position in the operation of the ship, which plays a very critical role in the safety of the ship and the personal and property safety, so the requirement of the manufacturing standard for the marine cable is almost strict. However, the existing cables, especially marine cables, are laid with power lines, network lines and communication telephone lines on the ship, which occupy a large amount of space and make the space utilization rate insufficient; the existing cables, particularly the marine cables, laid in the open on the deck are generally lack of water erosion prevention measures, so that the service life of the cables is influenced; present cable, especially marine cable, its armor is mostly metal material for cable weight is overweight, and not only installation transport is inconvenient when using in a large number, and is with high costs moreover.

The disadvantages of the existing cable, especially the cable for ships are:

1. the existing cables, especially marine cables, are respectively laid with power lines, network lines and communication telephone lines on the ship, which occupy a large amount of space and lead to insufficient space utilization rate;

2. the existing cables, particularly the marine cables, laid in the open on the deck are generally lack of water erosion prevention measures, so that the service life of the cables is influenced;

3. present cable, especially marine cable, its armor is mostly metal material for cable weight is overweight, and not only installation transport is inconvenient when using in a large number, and is with high costs moreover.

SUMMERY OF THE UTILITY MODEL

The object of the present invention is to overcome the drawbacks of the prior art and to provide a cable.

The purpose of the utility model is realized by the following technical scheme: the utility model provides a cable, includes the protective layer, the material of protective layer is PVC, the thickness of protective layer is 2 ~ 3mm, the protective layer inboard is provided with the water erosion prevention layer, the size of protective layer internal diameter and the big or small looks adaptation of water erosion prevention layer external diameter, the inside structure enhancement layer that is provided with in water erosion prevention layer, the size of water erosion prevention layer internal diameter and the big or small looks adaptation of structure enhancement layer external diameter, the inside fire-retardant layer that is provided with of structure enhancement layer, the size of structure enhancement layer internal diameter and the big or small looks adaptation of fire-retardant layer external diameter, three cavity, three have been seted up to fire-retardant layer inside, and are three the cavity is copper sandwich layer, optic fibre layer and telephone line layer respectively.

Optionally, the copper sandwich layer outside is provided with the first insulation layer, the material on first insulation layer is PVC, the thickness on first insulation layer is 1mm, the inside first filling layer that is provided with in first insulation layer, the size of first insulation layer internal diameter and the big or small looks adaptation of first filling layer external diameter, the material of first filling layer is TPE, the inside of first filling layer is provided with the copper core, the copper core is many transposition copper wires.

Optionally, the optical fiber layer outside is provided with the second insulating layer, the material of second insulating layer is PVC, the thickness of second insulating layer is 1mm, the inside second filling layer that is provided with of second insulating layer, the size of second insulating layer internal diameter and the big or small looks adaptation of second filling layer external diameter, the material of second filling layer is TPE, the inside of second filling layer is provided with the optical fiber core, the optical fiber core is many optic fibre.

Optionally, the phone line layer outside is provided with the third insulating layer, the material of third insulating layer is PVC, the thickness of third insulating layer is 1mm, the inside third filling layer that is provided with of third insulating layer, the size of third insulating layer internal diameter and the big or small looks adaptation of third filling layer external diameter, the material of third filling layer is TPE, the inside of third filling layer is provided with the phone core, the phone core is many transposition telephone lines.

Optionally, the material of the water erosion prevention layer is galvanized alloy steel, the water erosion prevention layer is formed by weaving a plurality of twisted galvanized alloy steel in a grid shape, and the thickness of the water erosion prevention layer is 1-2 mm.

Optionally, the structure reinforcing layer is made of engineering plastics, and the thickness of the structure reinforcing layer is 0.5-1 mm.

Optionally, the flame-retardant layer is made of glass wool, gaps are reserved between the structure reinforcing layer and the copper core layer, between the structure reinforcing layer and the optical fiber layer, between the structure reinforcing layer and the telephone line layer, the flame-retardant layer is filled in the gaps, and the copper core layer, the optical fiber layer and the telephone line layer are circumferentially and uniformly arranged inside the flame-retardant layer.

The utility model has the following advantages:

1. the cable, especially the marine cable, integrates three main lines of a power line copper core layer, a network line optical fiber layer and an in-ship communication telephone line layer into one cable, greatly saves the space in a cabin, and separates the required lines according to specific use functions after the cable is conveyed to a corresponding position.

2. The cable, especially the marine cable, be provided with the water erosion prevention layer in its outside protective layer inside, the water erosion prevention layer is worked out by zinc-plated alloy steel wire, because on the deck of boats and ships and other open air areas in long-term navigation, can with the vapor in sea water and the air, rainwater etc. long-term contact, and the electric core of circular telegram generally is made by copper and its alloy, use in humid environment for a long time, inside can the protective layer entering of partial vapor infiltration cable outside, cause the corruption of electric core, and other structures of deck and hull mainly comprise steel, it also easily causes the corruption of hull and deck to be in humid environment for a long time. The chemical activity of zinc is stronger than that of iron and copper, the zinc can form electrochemical reaction when contacting with the iron and the copper, and the copper in the battery cell is protected from being corroded by a sacrificial anode mode.

3. This cable, especially marine cable, be provided with water erosion prevention layer and structure enhancement layer between its outside protective layer and the inside fire-retardant layer respectively, constitute the armor of cost cable by water erosion prevention layer and structure enhancement layer, the structure enhancement layer is located inside the water erosion prevention layer, can block the corruption and continue to expand to inside when the water erosion prevention layer carries out the sacrificial anode reaction, the structure enhancement layer is made by engineering plastics, possess the mechanical strength similar with metal material, and density is far less than metal material, has saved the weight of totality, easy to assemble and transport.

Drawings

FIG. 1 is a schematic structural view of a cross section of the final assembly of the present invention;

FIG. 2 is a schematic structural diagram of a copper core layer according to the present invention;

FIG. 3 is a schematic structural diagram of an optical fiber layer according to the present invention;

fig. 4 is a schematic diagram of a telephone wire layer structure according to the present invention.

In the figure: 1-protective layer, 2-water corrosion prevention layer, 3-structure reinforcing layer, 4-flame retardant layer, 5-copper core layer, 501-first insulating layer, 502-first filling layer, 503-copper core, 6-optical fiber layer, 601-second insulating layer, 602-second filling layer, 603-optical fiber core, 7-telephone wire layer, 701-third insulating layer, 702-third filling layer and 703-telephone wire core.

Detailed Description

The utility model will be further described with reference to the accompanying drawings, but the scope of the utility model is not limited to the following.

As shown in figures 1-4, a cable comprises a protective layer 1, the protective layer 1 is made of PVC, the thickness of the protective layer 1 is 2-3 mm, a water erosion resistant layer 2 is arranged on the inner side of the protective layer 1, the inner diameter of the protective layer 1 is matched with the outer diameter of the water erosion resistant layer 2, a structural reinforcing layer 3 is arranged in the water erosion resistant layer 2, the inner diameter of the water erosion resistant layer 2 is matched with the outer diameter of the structural reinforcing layer 3, a flame retardant layer 4 is arranged in the structural reinforcing layer 3, the inner diameter of the structural reinforcing layer 3 is matched with the outer diameter of the flame retardant layer 4, three cavities are arranged in the flame retardant layer 4, the three cavities are respectively a copper core layer 5, an optical fiber layer 6 and a telephone wire layer 7, the cable integrates three main circuits of a power line copper core layer 5, a network line optical fiber layer 6 and an in-ship communication telephone line telephone wire layer 7 into one cable, and greatly saves the space in a cabin, after the cables are transported to the respective locations, the required lines are separated according to the specific use function.

As a preferred technical scheme of the utility model: the outside of the copper core layer 5 is provided with a first insulating layer 501, the material of the first insulating layer 501 is PVC, the thickness of the first insulating layer 501 is 1mm, a first filling layer 502 is arranged inside the first insulating layer 501, the inner diameter of the first insulating layer 501 is matched with the outer diameter of the first filling layer 502 in size, the material of the first filling layer 502 is TPE, a copper core 503 is arranged inside the first filling layer 502, and the copper core 503 is a plurality of stranded copper wires.

As a preferred technical scheme of the utility model: the outside of the optical fiber layer 6 is provided with a second insulating layer 601, the material of the second insulating layer 601 is PVC, the thickness of the second insulating layer 601 is 1mm, a second filling layer 602 is arranged inside the second insulating layer 601, the inner diameter of the second insulating layer 601 is matched with the outer diameter of the second filling layer 602 in size, the material of the second filling layer 602 is TPE, an optical fiber core 603 is arranged inside the second filling layer 602, and the optical fiber core 603 is a plurality of optical fibers.

As a preferred technical scheme of the utility model: the third insulating layer 701 is arranged on the outer side of the telephone wire layer 7, the third insulating layer 701 is made of PVC (polyvinyl chloride), the thickness of the third insulating layer 701 is 1mm, a third filling layer 702 is arranged inside the third insulating layer 701, the inner diameter of the third insulating layer 701 is matched with the outer diameter of the third filling layer 702 in size, the third filling layer 702 is made of TPE (thermoplastic elastomer), a telephone wire core 703 is arranged inside the third filling layer 702, and the telephone wire core 703 is a plurality of twisted telephone wires.

As a preferred technical scheme of the utility model: the material of the water erosion resistant layer 2 is galvanized alloy steel, the water erosion resistant layer 2 is a grid woven by a plurality of twisted galvanized alloy steel, the thickness of the water erosion resistant layer 2 is 1-2 mm, the water erosion resistant layer 2 is arranged inside the outermost protective layer 1 of the cable, the water erosion resistant layer 2 is woven by galvanized alloy steel wires, as the ship deck and other open areas can be contacted with water vapor and rainwater in seawater and air for a long time in long-term sailing, and the electrified cell is generally made of copper and copper alloy and used in a humid environment for a long time, part of water vapor can permeate the outermost protective layer 1 of the cable to enter the inside to cause corrosion of the cell, and other structures of the deck and the ship body are mainly made of steel, the ship body and the deck are easy to corrode in the humid environment for a long time, the chemical activity of zinc is stronger than that of iron and copper, and can form electrochemical reaction when contacting with copper and iron, and the copper in the battery cell is protected from corrosion by means of the sacrificial anode.

As a preferred technical scheme of the utility model: the material of structure enhancement layer 3 is engineering plastic, the thickness of structure enhancement layer 3 is 0.5 ~ 1mm, be provided with water erosion resistant layer 2 and structure enhancement layer 3 between its outside protective layer 1 of this cable and the inside fire-retardant layer 4 respectively, constitute the armor of this cable by water erosion resistant layer 2 and structure enhancement layer 3, structure enhancement layer 3 is located water erosion resistant layer inside 2, can block the corruption and continue to expand inside when water erosion resistant layer 2 carries out the sacrificial anode reaction, structure enhancement layer 3 is made by engineering plastic, possess the mechanical strength similar with metal material, and density is far less than metal material, the weight of totality has been saved, easy to assemble and transport.

As a preferred technical scheme of the utility model: the material on fire-retardant layer 4 is the glass cotton, has the space between structure enhancement layer 3 and copper sandwich layer 5, optical fiber layer 6 and the telephone line layer 7, the inside packing in space has fire-retardant layer 4, and copper sandwich layer 5, optical fiber layer 6 and telephone line layer 7 circumference align to grid are in fire-retardant layer 4's inside.

In summary, the following steps: the cable, especially the marine cable, integrates three main circuits of a power line copper core layer 5, a network line optical fiber layer 6 and an in-ship communication telephone line layer 7 into one cable, greatly saves the space in a cabin, and separates the required circuits according to specific use functions after the cable is conveyed to a corresponding position; the cable, especially the marine cable, there are water erosion resistant layers 2 in its outermost protective layer 1 inside, the water erosion resistant layer 2 is woven by the galvanized alloy steel wire, because the deck of the ship and other open areas in long-term navigation, can contact with water vapor, rainwater, etc. in sea water and air, and the electrified electric core is generally made of copper and its alloy, use in the humid environment for a long time, some water vapor can permeate the protective layer 1 of the cable outermost side and enter inside, cause the corrosion of the electric core, and other structures of deck and hull are mainly formed by steel, it is apt to cause the corrosion of hull and deck in the humid environment for a long time, and the chemical activity of zinc is all stronger than iron and copper, contact with copper and iron and can form electrochemical reaction, through the mode of sacrificing the positive pole, protect the copper in the electric core from corroding; this cable, especially marine cable, be provided with water erosion prevention layer 2 and structure enhancement layer 3 between its outside protective layer 1 and the fire-retardant layer 4 in inside respectively, constitute the armor of this cable by water erosion prevention layer 2 and structure enhancement layer 3, structure enhancement layer 3 is located water erosion prevention layer inside 2, can block the corruption and continue to expand to inside when water erosion prevention layer 2 carries out the sacrificial anode reaction, structure enhancement layer 3 is made by engineering plastics, possess the mechanical strength similar with metal material, and density is far less than metal material, the weight of totality has been saved, easy to assemble and transport.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A cable, characterized by: including protective layer (1), the material of protective layer (1) is PVC, the thickness of protective layer (1) is 2 ~ 3mm, protective layer (1) inboard is provided with water erosion resistant layer (2), the size of protective layer (1) internal diameter and the big or small looks adaptation of water erosion resistant layer (2) external diameter, water erosion resistant layer (2) inside is provided with structure enhancement layer (3), the size of water erosion resistant layer (2) internal diameter and the big or small looks adaptation of structure enhancement layer (3) external diameter, structure enhancement layer (3) inside is provided with fire-retardant layer (4), the size of structure enhancement layer (3) internal diameter and the big or small looks adaptation of fire-retardant layer (4) external diameter, three cavity has been seted up to fire-retardant layer (4) inside, and is three the cavity is copper core layer (5), optical fiber layer (6) and telephone line layer (7) respectively.

2. A cable according to claim 1, wherein: the utility model discloses a copper core layer, including copper core layer (5), copper core layer (5) outside is provided with first insulating layer (501), the material of first insulating layer (501) is PVC, the thickness of first insulating layer (501) is 1mm, first insulating layer (501) inside is provided with first filling layer (502), the size of first insulating layer (501) internal diameter and the big or small looks adaptation of first filling layer (502) external diameter, the material of first filling layer (502) is TPE, the inside of first filling layer (502) is provided with copper core (503), copper core (503) are many transposition copper wires.

3. A cable according to claim 1, wherein: the utility model discloses an optical fiber cable, including optical fiber layer (6), second insulating layer (601) and second insulating layer (601), the material of second insulating layer (601) is PVC, the thickness of second insulating layer (601) is 1mm, second insulating layer (601) inside is provided with second filling layer (602), the size of second insulating layer (601) internal diameter and the size looks adaptation of second filling layer (602) external diameter, the material of second filling layer (602) is TPE, the inside of second filling layer (602) is provided with optical fiber core (603), optical fiber core (603) are many optic fibre.

4. A cable according to claim 1, wherein: the utility model discloses a telephone line layer, including telephone line layer (7), third insulating layer (701) and third insulating layer (701), the material of third insulating layer (701) is PVC, the thickness of third insulating layer (701) is 1mm, third insulating layer (701) inside is provided with third filling layer (702), the size of third insulating layer (701) internal diameter and the size looks adaptation of third filling layer (702) external diameter, the material of third filling layer (702) is TPE, the inside of third filling layer (702) is provided with telephone core (703), telephone core (703) are many transposition telephone lines.

5. A cable according to claim 1, wherein: the material of the water erosion resistant layer (2) is galvanized alloy steel, the water erosion resistant layer (2) is formed by weaving a plurality of twisted galvanized alloy steels in a grid shape, and the thickness of the water erosion resistant layer (2) is 1-2 mm.

6. A cable according to claim 1, wherein: the structure reinforcing layer (3) is made of engineering plastics, and the thickness of the structure reinforcing layer (3) is 0.5-1 mm.

7. A cable according to claim 1, wherein: the flame-retardant layer (4) is made of glass wool, gaps are reserved among the structure reinforcing layer (3), the copper core layer (5), the optical fiber layer (6) and the telephone line layer (7), the flame-retardant layer (4) is filled in the gaps, and the copper core layer (5), the optical fiber layer (6) and the telephone line layer (7) are circumferentially and uniformly arranged inside the flame-retardant layer (4).