CN221079667U - Marine power cable with high shielding property - Google Patents

Abstract

The utility model provides a high-shielding marine power cable, which comprises a cable core, a conductor shielding layer, an insulating braiding layer, an insulating tape, an insulating thread layer, a steel tape armor, a spiral armor and an outer sheath, wherein the conductor shielding layer is wrapped outside the cable core; the armor layer of the marine cable has extremely high constraint, and after the cable is damaged or broken in a large area, the cable still cannot deform and expand, so that the inner layer body of the cable is prevented from being exposed, the cable has higher tightness, liquid is prevented from entering, the subsequent shielding layers are prevented from being separated, and the wrapping tightness of the cable is improved.

Description

Marine power cable with high shielding property

Technical Field

The utility model belongs to the technical field of cables, and particularly relates to a high-shielding marine power cable.

Background

The space of the ship is limited, the relative area capacity is small, and various instrument cables and electric equipment required are often laid together by using a plurality of wires and cables. Due to the limited space available, some power cables may be used as physical medium for the transmission of carrier signals, thereby reducing the amount of cable usage. The marine power cable is required to have strong shielding property, can resist external electromagnetic interference and avoid transmission deviation.

The existing marine cable is provided with armor layers for enhancing the whole mechanical capacity, corrosion resistance, anti-biting performance, tensile property and compression resistance of the cable, but most of armor layers of the existing marine cable are formed by arranging a plurality of steel wires on the inner side of an outer sheath in a circular array, when the outer sheath is worn in a large area or is damaged by being bitten by a rat on a ship, fine gaps or gaps are formed among the steel wires due to the fact that the steel wires do not have extremely high constraint and coating properties, the insulating shielding layer inside the steel wires can be directly exposed outside, and then the insulating shielding layer inside the steel wires and the bite of an external rat cannot be protected to the greatest extent, so that the time required by rush repair cannot be provided for ship maintenance personnel; in addition, the subsequent steel wire armor layer can not restrict the inner layer body any more, and the layer bodies can be separated to a certain extent, namely the shielding property of the insulating shielding layer is affected to a certain extent.

Therefore, it is very necessary to invent a high-shielding marine power cable.

Disclosure of utility model

In order to solve the technical problems, the utility model provides a high-shielding marine power cable which comprises a cable core, a conductor shielding layer, an insulating braiding layer, an insulating tape, an insulating wire layer, a steel tape armor, a spiral armor and an outer sheath.

Preferably, a filler is arranged between the conductor shielding layer and the insulating layer, the conductor shielding layer is made of a high-permeability material, and through holes for installing the cable core and the conductor shielding layer are arranged on the insulating layer.

Preferably, the insulating braid is a mesh layer woven by tinned copper wires, the insulating tape is arranged outside the insulating braid in a spiral winding and cladding mode, the insulating wire layer outside the insulating tape is a wire layer made of a plurality of glass fibers, and the glass fibers of the insulating wire layer are arranged outside the insulating tape in a winding and cladding mode.

Preferably, the steel tape armor is an armor layer formed by adopting a soft steel tape, the steel tape armor is arranged outside the insulating wire layer in a spiral winding and cladding mode, the spiral armor is an armor layer formed by a plurality of steel wires outside the steel tape armor, the steel wires of the spiral armor are clad outside the steel tape armor in a spiral winding mode, and the steel wires of the spiral armor are in close contact with each other.

Compared with the prior art, the utility model has the following beneficial effects:

The armor layer of the marine cable is composed of the steel tape armor and the spiral armor, the whole spiral armor is armor made of a plurality of spiral steel wires, the structural armor has extremely high constraint, when the outer sheath of the outer sheath is damaged or broken in a large area, the spiral armor still cannot generate any deformation expansion, because the outer sheath has extremely high retentivity, the steel wires are mutually constrained, the inner layer body of the spiral armor is prevented from being exposed, meanwhile, the whole bending resistance of the whole spiral armor can be improved to a certain extent, the whole cable is severely bent and deformed, the steel tape armor on the inner side of the spiral armor can further realize the inner sealing, the liquid can be prevented from entering to a certain extent, and the shielding performance can also be achieved.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

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

In the figure:

The cable comprises a cable core 1, a conductor shielding layer 2, an insulating layer 3, an insulating braiding layer 4, an insulating tape 5, an insulating wire layer 6, a steel tape armor 7, a spiral armor 8 and an outer sheath 9.

Detailed Description

In order that those skilled in the art will better understand the present utility model, a technical solution of the embodiments of the present utility model will be clearly and completely described below, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

In the description of the embodiments, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 to 2:

The utility model provides a high-shielding marine power cable, which comprises a cable core 1, a conductor shielding layer 2, an insulating layer 3, an insulating braiding layer 4, an insulating wrapping tape 5, an insulating wire layer 6, a steel tape armor 7, a spiral armor 8 and an outer sheath 9, wherein the cable core 1 is provided with a plurality of cable cores, the conductor shielding layer 2 is wrapped outside the cable core 1, the conductor shielding layer 2 is arranged inside the insulating layer 3, the insulating braiding layer 4 is arranged outside the insulating layer 3, the insulating wrapping tape 5 is wrapped outside the insulating braiding layer 4, the insulating wire layer 6 is wrapped outside the insulating wire layer 6, the steel tape armor 7 is wrapped outside the steel tape armor 7, the spiral armor 8 is arranged outside the spiral armor 8, the outer sheath 9 is arranged outside the steel tape armor 7 and the spiral armor 8 is an armor layer of the cable, and can play a role in shielding electromagnetism at the same time, and the spiral armor 8 is used for reinforcing the wrapping property between inner layers.

Embodiment one:

Specifically, a filler is arranged between a conductor shielding layer 2 and an insulating layer 3, the conductor shielding layer 2 is a shielding layer made of a high-permeability material, a through hole required for installing a cable core 1 and the conductor shielding layer 2 is arranged on the insulating layer 3, the cable is a multi-conductor cable, and the insulating layer 3 is used for separating a plurality of conductors.

Specifically, the insulating braid 4 is the stratum reticulare that is woven by tinned copper wire, and insulating tape 5 sets up with spiral winding cladding's mode the outside of insulating braid 4, the outside of insulating tape 5 insulating thread layer 6 is the line layer of being made by a plurality of glass fiber, and the glass fiber of insulating thread layer 6 sets up in the outside of insulating tape 5 with winding cladding's mode, and insulating braid 4, insulating tape 5 and insulating thread layer 6 are main electromagnetic shield layer, and insulating thread layer 6 has fire-retardant, insulating shield and thermal-insulated effect.

Specifically, the steel tape armor 7 is the armor that adopts the mild steel tape to constitute, and steel tape armor 7 sets up in the outside of insulating silk thread layer 6 with spiral winding cladding mode, and the outside of steel tape armor 7 spiral armor 8 is the armor that comprises a plurality of steel wire, and the steel wire of spiral armor 8 is in the outside of steel tape armor 7 with spiral winding mode cladding, and the intimate contact between the steel wire of spiral armor 8, mutual intimate contact between the steel wire of spiral armor 8 does not have obvious clearance or interval between the steel wire, and the inseparable cladding winding of spiral armor 8 is on steel tape armor 7.

Embodiment two:

After the cable is worn or bitten by the outside, the outer sheath 9 is damaged in a large area, the spiral armor 8 on the inner side of the cable is directly exposed, because the spiral armor 8 is an armor formed by a plurality of spiral steel wires, the spiral armor 8 is free of the constraint of the outer sheath 9, the spiral armor 8 cannot obviously form gaps or gaps, the steel tape armor 7 on the inner side of the spiral armor 8 can be sealed to a certain extent, external liquid is prevented from contacting with the layer structure inside the spiral armor 8, the spiral armor 8 and the steel tape armor 7 still can enable the layer bodies inside to still have extremely strong cladding property, gaps or gaps are avoided between the layer bodies, and the whole cable is still extremely high in shielding property after being damaged.

By utilizing the technical scheme of the utility model or under the inspired by the technical scheme of the utility model, a similar technical scheme is designed by a person skilled in the art, so that the technical effects are achieved, and the technical scheme falls into the protection scope of the utility model.

Claims (4)

1. The utility model provides a marine power cable of high shielding nature, its characterized in that, including cable core (1), conductor shielding layer (2), insulating layer (3), insulating weaving layer (4), insulating band (5), insulating silk thread layer (6), steel tape armor (7), spiral armor (8) and oversheath (9), cable core (1) is provided with a plurality of, and the outside parcel of cable core (1) is provided with conductor shielding layer (2), and conductor shielding layer (2) set up in the inside of insulating layer (3), and the outside of insulating layer (3) is provided with insulating weaving layer (4), and the outside winding of insulating weaving layer (4) is provided with insulating band (5), and the outside winding of insulating band (5) is provided with insulating silk thread layer (6), and the outside winding of insulating silk thread layer (6) is provided with steel tape armor (7), and the outside winding of steel tape armor (7) is provided with spiral armor (8), and the outside of spiral armor (8) is provided with oversheath (9).

2. A high shielding marine power cable as in claim 1 wherein: a filler is arranged between the conductor shielding layer (2) and the insulating layer (3), the conductor shielding layer (2) is a shielding layer made of high-permeability materials, and through holes required by installation of the cable core (1) and the conductor shielding layer (2) are arranged on the insulating layer (3).

3. A high shielding marine power cable as in claim 1 wherein: the insulating braid (4) is a mesh layer woven by tinned copper wires, the insulating tape (5) is arranged outside the insulating braid (4) in a spiral winding and coating mode, the insulating tape (5) is arranged outside the insulating wire layer (6) is a wire layer made of a plurality of glass fibers, and the glass fibers of the insulating wire layer (6) are arranged outside the insulating tape (5) in a winding and coating mode.

4. A high shielding marine power cable as in claim 1 wherein: the steel strip armoring device is characterized in that the steel strip armoring device is an armoring layer formed by adopting a soft steel strip, the steel strip armoring device (7) is arranged outside the insulating wire layer (6) in a spiral winding cladding mode, the spiral armoring device (8) is an armoring layer formed by a plurality of steel wires outside the steel strip armoring device (7), the steel wires of the spiral armoring device (8) are clad outside the steel strip armoring device (7) in a spiral winding mode, and the steel wires of the spiral armoring device (8) are in close contact with each other.