Marine radar multifunction cable

Abstract

The utility model relates to radar cable technical field discloses a marine radar multifunctional cable, including power cable unit, communication cable unit and control cable unit, power cable unit and control cable unit are twisted into the cable core assembly with communication cable unit as the middle axis, and the outer circle and internal clearance of cable core assembly are filled with filling body, and the cable core assembly is filled and rounded, the cable core assembly is arranged from inside to outside in turn with inner shielding layer, inner protective layer, armoring shielding layer and outer sheath, and the inner protective layer is equipped with ceramic fiber belt, and the outer sheath is equipped with polyvinyl chloride sheath, the utility model discloses, and the cable once lays and saves the line construction space, avoids repeatedly laying of multiple groups of cable, and the cable unit mass is light, oil -resistant, and the flame -retardant performance is strong, and the seawater -resistant, anticorrosive performance is good, and the mechanical strength and the flexibility are good, has the popularization and application value.

Description

Technical Field

[0001] This utility model relates to the field of radar cable technology, specifically a multi-functional marine radar cable. Background Technology

[0002] The shipbuilding industry is a modern comprehensive industry that provides essential technical equipment for marine development, water transportation, energy transportation, and other sectors. The development of the shipbuilding industry is inseparable from marine cables. Due to the special operating environment of marine cables, they differ from ordinary cables. Marine cables are mainly used in various ships and near-shore or offshore structures for power, lighting, control, and communication transmission. Currently, in the operating environment of ship radar, the high unit mass of composite cables leads to problems such as high load capacity, poor oil resistance, weak flame retardancy, poor seawater resistance, poor corrosion resistance, and insufficient mechanical strength. Therefore, higher requirements are placed on the configuration design and material selection of composite cables to meet the needs of the ship radar operating environment. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a multi-functional marine radar cable, which solves the problems of poor protection of existing marine radar cables, damage to the outer elastic protective sleeve that could lead to signal transmission termination, reduced cable lifespan, and limited functionality due to its singular ability to transmit signals.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A multi-functional marine radar cable includes a power cable unit, a communication cable unit, and a control cable unit. The power cable unit and the control cable unit are twisted together to form a cable core assembly with the communication cable unit as the central axis. The outer circumference and internal gaps of the cable core assembly are filled with filler to make the cable core assembly round. An inner shielding layer, an inner sheath, an armored shielding layer, and an outer sheath are arranged sequentially from the inside to the outside of the cable core assembly. The inner sheath is provided with ceramic fiber tape, and the outer sheath is provided with a polyvinyl chloride sheath.

[0006] Preferably, each core wire of the power cable unit includes a conductor, a composite wrapping tape, and an insulation layer. The conductor is made of Class 5 annealed soft copper wire stranded together, and the conductor is covered with a composite wrapping tape. The composite wrapping tape is a ceramicized silicone rubber composite tape with a thickness of 0.15 mm and a wrapping overlap rate of 25% to 30%.

[0007] Preferably, the insulation layer is arranged outside the composite wrapping tape, and the insulation layer is ultraviolet-irradiated cross-linked polyethylene, with different colors selected according to the different functions of each core wire of the power cable.

[0008] Preferably, the inner protective layer is wrapped with an expansion waterstop strip, and the expansion waterstop strip is covered with a waterproof wrapping layer.

[0009] Preferably, the waterproof wrapping layer is a composite tape with a thickness of 0.25mm, a wrapping angle of 45 degrees to 52 degrees, an overlap rate of not less than 30%, water-blocking powder filling the internal gaps, a hydroxide coating on the outer surface of the tape, and adhesive tape at the joints, with an overlap of not less than 6mm.

[0010] This utility model has the following beneficial effects:

[0011] This marine radar multi-functional cable features a novel design that combines three different functions. The outer PVC sheath enhances the cable's abrasion resistance, extending its service life. Internally, it incorporates an armored shielding layer to resist external mechanical stress, providing strong resistance and protecting communication and control cable units, reducing the occurrence of cable breakage. Simultaneously, an internal water-blocking strip structure enhances the cable's watertightness. The ceramic fiber tape provides fire resistance and fireproofing, further improving the cable's fire resistance. This cable allows for single-layout installation, saving construction space and avoiding the need for repeated laying of multiple cable sets, making it worthy of widespread application. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] In the diagram: 1. Power cable unit; 11. Conductor; 12. Composite wrapping tape; 13. Insulation layer; 2. Communication cable unit; 3. Control cable unit; 4. Filler; 5. Inner shielding layer; 6. Inner sheath; 7. Ceramic fiber tape; 8. Armored shielding layer; 9. Outer sheath; 10. Polyvinyl chloride sheath. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] A multi-functional marine radar cable includes a power cable unit 1, a communication cable unit 2, and a control cable unit 3. The power cable unit 1 and the control cable unit 3 are twisted together with the communication cable unit 2 as the central axis to form a cable core assembly. The outer circle and internal gaps of the cable core assembly are filled with filler 4 to make the cable core assembly round. From the inside to the outside, the cable core assembly is arranged with an inner shielding layer 5, an inner sheath 6, an armored shielding layer 8, and an outer sheath 9. The inner sheath 6 is provided with a ceramic fiber tape 7, and the outer sheath 9 is provided with a polyvinyl chloride sheath 10.

[0016] like Figure 1 As shown, this utility model is a cable structure that combines three different functions. The design is novel. The outer layer is a polyvinyl chloride sheath 10, which enhances the cable's wear resistance and thus extends its service life. Internally, it features an armored shielding layer 8 that resists external mechanical stress, providing strong resistance and protecting the communication cable and control cable unit 3, reducing the occurrence of cable core breakage. Simultaneously, an internal water-blocking strip structure enhances the cable's watertightness. The ceramic fiber strip 7 provides fire resistance and fireproofing, further improving the cable's fire resistance. This cable allows for single-layout installation, saving construction space and avoiding the need for repeated laying of multiple cable sets, making it valuable for widespread application.

[0017] Each core wire of power cable unit 1 includes a conductor 11, a composite wrapping tape 12, and an insulation layer 13. The conductor 11 is made of Class 5 annealed soft copper wire stranded together, and the conductor 11 is covered with a composite wrapping tape 12. The composite wrapping tape 12 is a ceramicized silicone rubber composite tape with a thickness of 0.15 mm and a wrapping overlap rate of 25% to 30%. Figure 1 In this technical solution, a ceramicized silicone rubber composite strip is installed on the outside of the power cable conductor 11, which has excellent fireproof effect.

[0018] In this technical solution, the insulation layer 13 is arranged outside the composite wrapping tape 12. The insulation layer 13 is ultraviolet-irradiated cross-linked polyethylene and different colors are selected according to the different functions of each core wire of the power cable for easy identification.

[0019] In this technical solution, the inner sheath 6 is wrapped with an expansion water-stop strip, which is further covered by a waterproof wrapping layer. By placing the expansion water-stop strip inside the waterproof wrapping layer, it can expand upon contact with seawater after the cable protective layer ruptures, thereby sealing the cracks in the cable protective layer and preventing further seawater infiltration, effectively reducing losses caused by cable rupture. Specifically, the expansion water-stop strip is made of a water-swellable material, which is prepared by using inorganic or organic water-absorbing components as the main material for water absorption and expansion, along with rubber and other additives; the water-absorbing component is one of sodium bentonite, acrylate, polyvinyl alcohol, or water-absorbing polyurethane.

[0020] The waterproof wrapping layer is a 0.25mm thick composite tape, wrapped at an angle of 45-52 degrees with an overlap of no less than 30%. The internal gaps are filled with water-blocking powder. The outer surface of the tape is entirely coated with a hydroxide coating, and the joints are sealed with tape, with an overlap of no less than 6mm. This design serves two purposes: first, it acts as a water barrier, as the water-blocking powder increases the water absorption rate and expansion rate of the tape upon contact with water, preventing external water or moisture from entering the cable; second, the overall hydroxide coating on the outer surface of the tape increases the overall flame retardancy of the semi-conductive buffer water-blocking tape, resulting in excellent flame-retardant performance.

[0021] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-functional marine radar cable, characterized in that, It includes a power cable unit, a communication cable unit, and a control cable unit. The power cable unit and the control cable unit are twisted together with the communication cable unit as the central axis to form a cable core assembly. The outer circle and internal gaps of the cable core assembly are filled with filler to make the cable core assembly round. From the inside to the outside, the cable core assembly is arranged with an inner shielding layer, an inner sheath, an armored shielding layer, and an outer sheath. The inner sheath is provided with ceramic fiber tape, and the outer sheath is provided with a polyvinyl chloride sheath.

2. The marine radar multi-functional cable according to claim 1, characterized in that: Each core wire of the power cable unit includes a conductor, a composite wrapping tape, and an insulation layer. The conductor is made of Class 5 annealed soft copper wire stranded together, and the conductor is covered with a composite wrapping tape. The composite wrapping tape is a ceramicized silicone rubber composite tape with a thickness of 0.15 mm and a wrapping overlap rate of 25% to 30%.

3. The marine radar multi-functional cable according to claim 2, characterized in that: The insulation layer is arranged outside the composite tape. The insulation layer is made of ultraviolet-irradiated cross-linked polyethylene and is selected in different colors according to the different functions of each core wire of the power cable.

4. The marine radar multi-functional cable according to claim 1 or 2, characterized in that: The inner protective layer is wrapped with an expansion waterstop strip, and the expansion waterstop strip is covered with a waterproof wrapping layer.

5. The marine radar multi-functional cable according to claim 4, characterized in that: The waterproof wrapping layer is a 0.25mm thick composite tape with a wrapping angle of 45-52 degrees and an overlap rate of not less than 30%. The internal gaps are filled with water-blocking powder, and the outer surface of the tape is coated with a hydroxide coating. The joints are bonded with tape, and the overlap is not less than 6mm.

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