CN214043214U

CN214043214U - Marine cable

Info

Publication number: CN214043214U
Application number: CN202120186760.1U
Authority: CN
Inventors: 朱建芳; 梁新正; 张舒群
Original assignee: Zhejiang Wrlong High Temperature Wire & Cable Co ltd
Current assignee: Zhejiang Wrlong High Temperature Wire & Cable Co ltd
Priority date: 2021-01-23
Filing date: 2021-01-23
Publication date: 2021-08-24
Anticipated expiration: 2031-01-23

Abstract

The utility model relates to a marine cable, relate to the technical field of cable, including a plurality of groups conductor core, every group conductor core comprises a plurality of tinned wire and the first insulation layer of cladding around the tinned wire by a plurality of tinned wire, be provided with the protective layer around the conductor core, a plurality of groups conductor core constitute the cable core, be provided with the shielding layer around the cable core, the centre of a circle department of shielding layer is provided with the strengthening rib, the interval is provided with a plurality of shielding part between the lateral wall of strengthening rib and the inside wall of shielding layer, there is the cavity that supplies a cable core to place between the adjacent shielding part. This application first insulation layer can make not disturbed between the electric wire core of different groups, separates into a plurality of cavity through a plurality of shields between the inboard of shielding layer and the outside of strengthening rib, and every cavity supplies a cable core to hold, shields the electromagnetic interference who produces between the different cable cores through protective layer and shield, has guaranteed the normal transmission of signal, and the shielding layer still plays the effect that shields external magnetic field and produce the interference to the cable core simultaneously.

Description

Marine cable

Technical Field

The application relates to the technical field of cables, in particular to a marine cable.

Background

The marine cable is used for power, lighting, control and communication transmission of various ships in river and sea and offshore or offshore structures. The demand of marine cables is increasing, and the requirement of the marine cables is higher and higher compared with the requirement of common cables.

In the related art, chinese patent document No. CN202102776U discloses a marine cable, in which a plurality of tinned copper wires are twisted to form a conductive wire core, an ethylene propylene rubber insulating layer is extruded around the conductive wire core to form an insulating core wire, two insulating core wires are twisted to form a cable core, an inner liner is extruded around the cable core, a copper wire braided armor layer is wrapped around the inner liner, and a plastic or rubber outer jacket is extruded around the copper wire braided armor layer.

With respect to the related art in the above, the inventors consider that: when the marine cable in the related art is used, transmission can be provided for control signals of a ship, different signals need to be transmitted by the multiple insulating core wires in the same cable core respectively, and signal interference exists between the adjacent insulating core wires to influence the quality of signal transmission and needs to be improved.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that signal interference exists between adjacent insulating core wires in a cable core, the application provides a marine cable.

The application provides a marine cable adopts following technical scheme:

the utility model provides a marine cable, includes a plurality of groups conductor core, every group conductor core comprises a plurality of tinned wire and the first insulation layer of cladding around the tinned wire, be provided with the protective layer around the conductor core, a plurality of groups conductor core constitutes the cable core, be provided with the shielding layer around the cable core, the centre of a circle department of shielding layer is provided with the strengthening rib, the interval is provided with a plurality of shielding piece between the lateral wall of strengthening rib and the inside wall of shielding layer, and is adjacent there is the cavity that supplies a cable core to place between the shielding piece.

Through adopting above-mentioned technical scheme, the first insulating layer can make not disturbed between the electric wire core of different groups, separates into a plurality of cavity through a plurality of shields between the inboard of shielding layer and the outside of strengthening rib, and every cavity supplies a cable core to hold, shields the electromagnetic interference who produces between the different cable cores through protective layer and shield, has guaranteed the normal transmission of signal, and the shielding layer still plays the effect that shields external magnetic field and produce the interference to the cable core simultaneously.

Optionally, the shielding part is two backup pads that are a set of and parallel arrangement, the one end and the lateral wall of strengthening rib of backup pad are connected, and the other end is connected with the inside wall of shielding layer, and every group is two there is the clearance between the backup pad.

Through adopting above-mentioned technical scheme, be a set of backup pad through two, form the clearance between two backup pads of every group, when marine cable receives external force extrusion, improve the deformation power of backup pad, can prevent simultaneously that the correct transmission of assurance signal from making the protective layer impaired because of mutual contact friction between the adjacent cable core.

Optionally, a heat-resistant layer is disposed on an outer surface of the shielding layer.

By adopting the technical scheme, the heat-resistant effect of the cable core is enhanced by the heat-resistant layer, so that the heat resistance of the marine cable is enhanced.

Optionally, a waterproof layer is arranged on the outer surface of the heat-resistant layer.

Through adopting above-mentioned technical scheme, the water-proof effects of cable core has been strengthened to the waterproof layer to the waterproof nature of marine cable has been strengthened.

Optionally, the outer surface of the waterproof layer is provided with a second insulating layer.

Through adopting above-mentioned technical scheme, the second insulating layer plays the effect of protection to the waterproof layer, also plays the effect of further protection to marine cable simultaneously.

Optionally, a plurality of first reinforcing strips are arranged on the outer surface of the waterproof layer at intervals along the circumferential direction, and grooves for embedding the first reinforcing strips are formed in the inner side wall of the second insulating layer.

Through adopting above-mentioned technical scheme, thereby first enhancement strip can increase waterproof layer material use amount can further improve the water-proof effects of cable core, has strengthened marine cable's waterproof nature.

Optionally, the outer surface of the second insulating layer is provided with second reinforcing strips corresponding to the positions and the number of the first reinforcing strips.

Through adopting above-mentioned technical scheme, the recess can be compensatied to the second reinforcing bar, guarantees the insulating effect of second insulating layer and intensity.

Optionally, the outer surface of the second insulating layer is provided with a corrosion-resistant layer.

By adopting the technical scheme, the corrosion-resistant layer can improve the corrosion resistance of the second insulating layer to seawater, so that the corrosion resistance of the marine cable is improved.

1. The first insulating layer can enable the conductive wire cores of different groups not to be interfered, the inner side of the shielding layer and the outer side of the reinforcing rib are divided into a plurality of cavities through a plurality of shielding pieces, each cavity is accommodated by one cable core, electromagnetic interference generated between different cable cores is shielded through the protective layer and the shielding pieces, normal transmission of signals is guaranteed, and meanwhile, the shielding layer also plays a role in shielding interference of an external magnetic field on the cable cores;

2. the heat resistance, the water resistance, the insulativity, the strength and the corrosion resistance of the marine cable are respectively improved through the heat-resistant layer, the waterproof layer, the second insulating layer and the corrosion-resistant layer.

Drawings

Fig. 1 is a schematic cross-sectional view of the present application.

Description of reference numerals: 1. a conductive wire core; 11. tinned copper wire; 12. a first insulating layer; 2. a protective layer; 3. a cable core; 4. a shielding layer; 41. a support plate; 5. reinforcing ribs; 6. a heat-resistant layer; 7. a waterproof layer; 71. a first reinforcing strip; 8. a second insulating layer; 81. a groove; 82. a second reinforcing strip; 9. a corrosion resistant layer.

Detailed Description

The present application is described in further detail below with reference to fig. 1.

The embodiment of the application discloses a marine cable.

Referring to fig. 1, a marine cable includes a cable core 3 composed of four groups of conductive wire cores 1, and the marine cable has four cable cores 3, and the marine cable can simultaneously provide transmission of four different signals, and compared with two cable cores 3 in the related art, the efficiency of signal transmission is improved. Every group conductor core 1 is by four tinned wire 11 and the cladding at the first insulation layer 12 around four tinned wire 11, and first insulation layer 12 is made by FEP soft plastics, and this material does not ignite, can prevent the diffusion of flame, can prevent to take place to conduct because of the short circuit between the tinned wire 11 and catch fire, and simultaneously, the cladding has to make protective layer 2 by the copper foil around four groups conductor core 1, also can shield the mutual magnetic field interference that produces between the adjacent cable core 3. The cladding has shielding layer 4 made by the copper foil around four cable cores 3, can shield the interference of external magnetic field to cable core 3, department installs the strengthening rib 5 of being made by aramid yarn in the centre of a circle of shielding layer 4, four shields are installed at the interval between the lateral wall of strengthening rib 5 and the inside wall of shielding layer 4, be formed with the cavity that supplies a cable core 3 to pass between the adjacent shield, keep apart cable core 3, prevent that 3 mutual contacts of adjacent cable core from making 2 wearing and tearing of protective layer produce magnetic field interference between the cable core 3, therefore the shield can play shielded effect to the magnetic field interference of mutual production between the adjacent cable core 3. The shielding part is two backup pads 41 with shielding layer 4 integrated into one piece, and backup pad 41 is two to be a set of, and the shielding part is a set of backup pad 41, and backup pad 41 one end and strengthening rib 5 fixed connection, the other end and shielding layer 4 fixed connection.

Referring to fig. 1, the reinforcing ribs 5 can improve the strength of the marine cable, prevent people from breaking the marine cable in the process of moving the marine cable, and meanwhile, a group of two support plates 41 are arranged in parallel, and a gap is reserved between the support plates 41, so that the deformation capacity of the support plates 41 in the movement of the marine cable is improved, and the strength of the marine cable is further improved.

Referring to fig. 1, the outer surface of the shielding layer 4 is coated with a heat-resistant layer 6 made of fluorosilicone resin, the fluorosilicone resin has good heat resistance, cold-heat exchange resistance, adhesion, contact angle, viscosity and impact resistance, and the heat-resistant layer 6 can improve the heat resistance of the marine cable and can adapt to severe environments of offshore operations.

Referring to fig. 1, the waterproof layer 7 made of epoxy resin is coated on the outer surface of the heat-resistant layer 6, the epoxy resin has good anti-leakage performance, the marine cable is difficult to contact with seawater and rainwater in marine operation, the waterproof layer 7 can prevent moisture from permeating into the marine cable, the marine cable is prevented from being led out and is short-circuited, a good waterproof effect is achieved, meanwhile, the epoxy resin has good insulativity and strength, and the strength and insulativity of the marine cable are further improved.

Referring to fig. 1, the outer surface of the waterproof layer 7 is coated with a second insulating layer 8 made of silicone rubber, and the silicone rubber has good flexibility and rebound resilience and high surface hardness, and has an effect of protecting the internal structure of the marine cable.

Referring to fig. 1, the corrosion-resistant layer 9 of the aluminum-based alloy water-based epoxy anticorrosive coating is coated on the outer surface of the second insulating layer 8, and the aluminum-based alloy water-based epoxy anticorrosive coating has good corrosion resistance to seawater and can improve the corrosion resistance of the second insulating layer 8, so that the corrosion resistance of the marine cable is improved, and the service life of the marine cable is prolonged.

Referring to fig. 1, a plurality of first reinforcing strips 71 are integrally formed on the outer surface of the waterproof layer 7, grooves 81 for embedding the first reinforcing strips 71 are formed on the inner side wall of the second insulating layer 8, and the number and positions of the grooves 81 correspond to those of the first reinforcing strips 71. The first reinforcing strips 71 can increase the usage amount of the silicon rubber of the waterproof layer 7, and can improve certain waterproofness, so that the marine cable is more suitable for seawater operation.

Referring to fig. 1, the second reinforcing strips 82 corresponding to the grooves 81 in quantity and position are integrally formed on the outer surface of the second insulating layer 8, so that the influence of the grooves 81 on the strength of the second insulating layer 8 is compensated, meanwhile, the outer surface area of the second insulating layer 8 can be increased by the second reinforcing strips 82, more aluminum-based alloy water-based epoxy anticorrosive paint can be coated, the corrosion resistance of the second insulating layer 8 to seawater is improved, and the corrosion resistance of a marine cable to seawater is also improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A marine cable, includes a plurality of groups electric conductor core (1), its characterized in that: every group conductive core (1) comprises a plurality of tinned wire (11) and first insulating layer (12) of cladding around tinned wire (11), be provided with protective layer (2), a plurality of group around conductive core (1) constitutes cable core (3), be provided with shielding layer (4) around cable core (3), the centre of a circle department of shielding layer (4) is provided with strengthening rib (5), the interval is provided with a plurality of shielding piece between the lateral wall of strengthening rib (5) and the inside wall of shielding layer (4), and is adjacent there is the cavity that supplies a cable core (3) to place between the shielding piece.

2. A marine cable according to claim 1, wherein: the shielding piece is two for a set of and parallel arrangement's backup pad (41), the one end of backup pad (41) is connected with the lateral wall of strengthening rib (5), the other end is connected with the inside wall of shielding layer (4), every group is two it is gapped between backup pad (41).

3. A marine cable according to claim 1, wherein: and a heat-resistant layer (6) is arranged on the outer surface of the shielding layer (4).

4. A marine cable according to claim 3, wherein: and a waterproof layer (7) is arranged on the outer surface of the heat-resistant layer (6).

5. A marine cable according to claim 4, wherein: and a second insulating layer (8) is arranged on the outer surface of the waterproof layer (7).

6. A marine cable according to claim 5, wherein: the outer surface of waterproof layer (7) is provided with a plurality of first enhancement strips (71) along circumference interval, be provided with recess (81) that supply first enhancement strip (71) embedding on the inside wall of second insulating layer (8).

7. A marine cable according to claim 6, wherein: the outer surface of the second insulating layer (8) is provided with second reinforcing strips (82) corresponding to the positions and the number of the first reinforcing strips (71).

8. A marine cable according to claim 5, wherein: the outer surface of the second insulating layer (8) is provided with a corrosion-resistant layer (9).