High-anti-interference coaxial cable for ships and warships
By interlacing braiding of copper tows and semi-conductive rubber strips in the outer shielding layer of ship-made cables, the problem of weakening anti-interference ability of existing cables when improving the flexibility is solved, and a cable design with high anti-interference and high flexibility is achieved.
Patent Information
- Application Number
- CN202421535837.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-02
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-07-02
AI Technical Summary
The existing ship-made cables have weakened anti-interference capabilities while increasing their flexibility.
The outer shielding layer is woven into a mesh structure of multiple strands of copper wire tows and multiple semiconducting rubber strips, and is arranged at intervals between the copper wire tows and semiconducting rubber strips. The semiconducting rubber strips are doped with colloidal carbon particles to enhance the shielding effect.
It improves the braid density and anti-interference ability of the cable, while enhancing the flexibility of the cable, and provides buffer protection through the elasticity of the semiconductor rubber strips, extending the service life of the cable.
Smart Images
Figure CN222826114U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cables, in particular to a high-interference-resistant coaxial cable for ships. Background Art
[0002] In the power system of large ships, in order to ensure the stable operation of the power system, anti-interference cables are generally used for power and signal transmission.
[0003] Publication number CN206907535U, publication date 2018-01-19, the disclosed medium-frequency mobile power cable for ships, including: 1 neutral copper conductor, 6 phase copper conductors, an inner sheath layer and an outer sheath layer, the outer surface of the neutral copper conductor is covered with a neutral insulation layer, the outer surface of the phase copper conductor is covered with a phase insulation layer, the 6 phase copper conductors are twisted on the side surface of 1 neutral copper conductor to form a cable core, the inner sheath layer is covered on the outer surface of the 6 phase copper conductors, and a tinned copper wire braided layer and a copper tape shielding layer are arranged between the inner sheath layer and the outer sheath layer from the inside to the outside, and the copper tape shielding layer is composed of a copper tape wrapped around the tinned copper wire braided layer.
[0004] In the prior art including the above-mentioned patents, a mesh structure woven of copper wire is generally coated on the outside of the wire core to improve the anti-interference ability of the cable, and the higher the weaving density, the stronger the anti-interference ability. However, since the greater the weaving density, the lower the bendability of the cable, in order to meet the use of cables in different situations, the weaving density is generally reduced during weaving to improve the bendability of the cable. Generally, the density is not higher than 90%, but this also weakens the anti-interference ability of the cable. Utility Model Content
[0005] The utility model aims to provide a highly anti-interference coaxial cable for ships, which is used to solve the problem of reduced anti-interference ability of the cable caused by reduced braiding density and increased curvature in the prior art.
[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a high-anti-interference coaxial cable for ships, comprising:
[0007] Several wire cores;
[0008] An outer shielding layer, which includes a copper wire bundle and a semi-conductive rubber strip;
[0009] The outer shielding layer is coated on the outside of several wire cores, and the outer shielding layer is woven into a mesh structure by interlacing multiple copper wire bundles and multiple semi-conductive rubber strips, and the copper wire bundles and the semi-conductive rubber strips are arranged at intervals.
[0010] Preferably, it also includes an inner shielding layer coated on the outer surface of the wire core.
[0011] Preferably, it also includes an inner insulating layer coated on the outer surface of the inner shielding layer.
[0012] Preferably, it also includes an outer insulating layer located between the plurality of wire cores and the outer shielding layer, wherein a filling material is arranged.
[0013] Preferably, it also includes a semiconductor paper film coated on the outer surface of the outer insulating layer.
[0014] Preferably, it also includes an outer protective layer coated on the outer surface of the outer shielding layer.
[0015] In the above technical scheme, the high-anti-interference coaxial cable for ships provided by the utility model has the following beneficial effects: since the outer shielding layer is woven into a mesh structure by multiple copper wire bundles and multiple semi-conductive rubber strips, and the copper wire bundles and the semi-conductive rubber strips are arranged at intervals, and since the semi-conductive rubber strips are elastic, the gaps between the copper wire bundles can be eliminated when they are woven at intervals with the copper wire bundles, thereby increasing the weaving density. Colloidal carbon particles are added during the production process of the semi-conductive rubber strips, so they can also shield electric and magnetic fields. Since the semi-conductive rubber strips are elastic, they can be squeezed and deformed by the copper wire bundles when bending, thereby providing bending space for the copper wire bundles, thereby not only improving the bendability of the cable, but also improving the anti-interference ability of the cable. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.
[0017] Figure 1 This is a schematic diagram of the cross-sectional structure of a cable according to an embodiment of the utility model;
[0018] Figure 2 A schematic diagram of the mesh structure of the outer shielding layer provided in an embodiment of the utility model.
[0019] Description of reference numerals:
[0020] 1. Wire core; 11. Inner shielding layer; 12. Inner insulation layer; 2. Outer insulation layer; 21. Semiconductor paper film; 3. Filling material; 4. Outer shielding layer; 41. Copper wire bundle; 42. Semiconducting rubber strip; 5. Outer protective layer. DETAILED DESCRIPTION
[0021] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0022] like Figure 1-2As shown, a high interference immunity coaxial cable for ships, comprising:
[0023] Several wire cores 1;
[0024] An outer shielding layer 4, which includes a copper wire bundle 41 and a semi-conductive rubber strip 42;
[0025] The outer shielding layer 4 is coated on the outside of the plurality of wire cores 1 , and the outer shielding layer 4 is formed by interlacing and weaving a plurality of copper wire bundles 41 and a plurality of semi-conductive rubber strips 42 into a mesh structure, and the copper wire bundles 41 and the semi-conductive rubber strips 42 are arranged at intervals.
[0026] Specifically, by covering the outer shielding layer 4 on the outside of several wire cores 1, the interference of external electric field and magnetic field can be effectively resisted.
[0027] Since the outer shielding layer 4 is woven into a mesh structure by interlacing multiple copper wire bundles 41 and multiple semi-conductive rubber strips 42, and the copper wire bundles 41 and the semi-conductive rubber strips 42 are arranged at intervals, and since the semi-conductive rubber strips 42 are elastic, the gaps between the copper wire bundles 41 can be eliminated when they are interlaced and woven with the copper wire bundles 41, thereby increasing the weaving density, making the mesh structure more compact, and thus playing a good fixing role for the plurality of wire cores 1. Colloidal carbon particles are added during the manufacturing process of the semi-conductive rubber strips 42, so they can also shield electric and magnetic fields. Since the semi-conductive rubber strips 42 are elastic, they can be squeezed and deformed by the copper wire bundles 41 when bent, thereby providing bending space for the copper wire bundles 41, thereby not only improving the bendability of the cable, but also improving the anti-interference ability of the cable.
[0028] Furthermore, since the semi-conductive rubber strip 42 is elastic, it can provide a certain buffering protection to the inner wire core 1 when the cable is squeezed, thereby increasing the service life of the cable.
[0029] In the above technology, since the outer shielding layer 4 is composed of multiple copper wire bundles 41 and multiple semi-conductive rubber strips 42 interlaced and woven into a mesh structure, and the copper wire bundles 41 and the semi-conductive rubber strips 42 are arranged at intervals, and since the semi-conductive rubber strips 42 are elastic, the gaps between the copper wire bundles 41 can be eliminated when they are interlaced and woven with the copper wire bundles 41, thereby improving the weaving density. Colloidal carbon particles are added during the manufacturing process of the semi-conductive rubber strips 42, so they can also shield electric fields and magnetic fields. Since the semi-conductive rubber strips 42 are elastic, they can be squeezed and deformed by the copper wire bundles 41 when bent, thereby providing bending space for the copper wire bundles 41, thereby not only improving the bendability of the cable, but also improving the anti-interference ability of the cable.
[0030] As a further embodiment provided by the present invention, it also includes an inner shielding layer 11 coated on the outer surface of the wire core 1 .
[0031] Specifically, the inner shielding layer 11 is generally a metallized paper tape or a semiconductor paper tape, which is used to eliminate the increase in the electric field strength on the surface of the core 1 caused by the roughness of the surface of the core 1, thereby shielding its own electric field, and cooperate with the outer shielding layer 4 to achieve full shielding, thereby further improving the anti-interference ability of the cable.
[0032] As a further embodiment of the present invention, the present invention further includes an inner insulating layer 12 coated on the outer surface of the inner shielding layer 11 .
[0033] Specifically, the inner insulating layer 12 is used to isolate the wire cores 1 , effectively preventing the internal wire cores 1 from interfering with each other.
[0034] As a further embodiment of the present invention, it also includes an outer insulating layer 2 located between the plurality of wire cores 1 and the outer shielding layer 4, wherein a filling material 3 is arranged inside the outer insulating layer 2.
[0035] Specifically, the filling material 3 is used to make the cable round and stable in structure, and the main materials include non-hygroscopic materials such as PP rope, glass fiber rope, asbestos rope, etc., and are non-conductive.
[0036] As a further embodiment provided by the present invention, it also includes a semiconductor paper film 21 coated on the outer surface of the outer insulating layer 2 .
[0037] Specifically, the semiconductor paper film 21 is located between the outer insulating layer 2 and the outer shielding layer 4, and it has the function of shielding the electric field, thereby further increasing the anti-interference ability of the cable. At the same time, due to the different expansion coefficients of the outer insulating layer 2 and the outer shielding layer 4, free discharge may occur in the tiny gap. Providing a semiconductor paper film 21 between the two can avoid the formation of free discharge.
[0038] As a further embodiment of the present invention, it also includes an outer protective layer 5 coated on the outer surface of the outer shielding layer 4.
[0039] Specifically used to protect the whole.
[0040] Working principle: By covering the outer shielding layer 4 on the outside of several cores 1, the interference of external electric and magnetic fields can be effectively resisted. Since the outer shielding layer 4 is woven into a mesh structure by multiple copper wire bundles 41 and multiple semi-conductive rubber strips 42, and the copper wire bundles 41 and the semi-conductive rubber strips 42 are arranged at intervals, and the semi-conductive rubber strips 42 are elastic, the gaps between the copper wire bundles 41 can be eliminated when they are woven at intervals with the copper wire bundles 41, thereby increasing the weaving density, making the mesh structure more compact, and thus playing a good fixing role for several cores 1. Colloidal carbon particles are added during the production process of the semi-conductive rubber strips 42, so they can also shield electric and magnetic fields. Since the semi-conductive rubber strips 42 are elastic, they can be squeezed and deformed by the copper wire bundles 41 when bending, thereby providing bending space for the copper wire bundles 41, thereby not only improving the bendability of the cable, but also improving the anti-interference ability of the cable. force, and because the semi-conductive rubber strip 42 is elastic, when the cable is squeezed, it can provide a certain buffer protection for the internal core 1, thereby increasing the service life of the cable. The inner shielding layer 11 is generally a metallized paper tape or a semiconductor paper tape, which is used to eliminate the increase in the electric field strength on the surface of the core 1 caused by the roughness of the surface of the core 1, thereby realizing shielding of its own electric field, and cooperating with the outer shielding layer 4 to achieve full shielding, thereby further improving the anti-interference ability of the cable. The semiconductor paper film 21 is located between the outer insulating layer 2 and the outer shielding layer 4, and it has the function of shielding the electric field, thereby further increasing the anti-interference ability of the cable. At the same time, since the expansion coefficients of the outer insulating layer 2 and the outer shielding layer 4 are different, free discharge may occur in the tiny gap. The semiconductor paper film 21 is arranged between the two to avoid the formation of free discharge, thereby realizing multi-level anti-interference, so that the cable has high anti-winding ability.
[0041] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A highly anti-interference coaxial cable for ships, characterized in that: include: A plurality of wire cores (1); An outer shielding layer (4), comprising a copper wire bundle (41) and a semi-conductive rubber strip (42); The outer shielding layer (4) is coated on the outside of the plurality of wire cores (1), and the outer shielding layer (4) is formed by interlacing and weaving a plurality of copper wire bundles (41) and a plurality of semi-conductive rubber strips (42) into a mesh structure, and the copper wire bundles (41) and the semi-conductive rubber strips (42) are arranged at intervals.
2. The high interference immunity coaxial cable for ships according to claim 1, characterized in that: It also includes an inner shielding layer (11) coated on the outer surface of the wire core (1).
3. The high interference immunity coaxial cable for ships according to claim 2, characterized in that: It also includes an inner insulating layer (12) coated on the outer surface of the inner shielding layer (11).
4. The high interference immunity coaxial cable for ships according to claim 1, characterized in that: It also includes an outer insulating layer (2) located between the plurality of wire cores (1) and the outer shielding layer (4), wherein a filling material (3) is arranged.
5. The high interference immunity coaxial cable for ships according to claim 4, characterized in that: It also includes a semiconductor paper film (21) coated on the outer surface of the outer insulating layer (2).
6. The high interference immunity coaxial cable for ships according to claim 1, characterized in that: It also includes an outer protective layer (5) coated on the outer surface of the outer shielding layer (4).