Copper core flexible conductor crosslinked polyethylene insulation polyvinyl chloride sheath control cable

Abstract

The utility model relates to the technical field of control cables, in particular to a copper core flexible conductor cross-linked polyethylene insulation polyvinyl chloride sheath control cable, which comprises a copper core flexible conductor, a fluororubber insulation layer is wrapped on the surface of the copper core flexible conductor, a fiber factice layer is arranged on the surface of the fluororubber insulation layer, and a cross-linked polyethylene insulation polyvinyl chloride sheath is arranged on the surface of the fiber factice layer. The surface of the fiber factice layer is wrapped with a crosslinked polyethylene insulating layer, the surface of the crosslinked polyethylene insulating layer is provided with a metal armor layer, the surface of the metal armor layer is fixedly sleeved with a polyvinyl chloride sheath layer, the surface of the fluororubber insulating layer is provided with a heat-resistant layer, the heat-resistant layer comprises a transparent mylar layer, and the transparent mylar layer is provided with a heat-resistant layer. The surface of the transparent mylar layer is wrapped with a wrapping tape layer. According to the utility model, through cooperation of the transparent mylar layer, the wrapping tape layer and the low-smoke halogen-free polyolefin material layer, the cable has excellent high temperature resistance and flame retardation performance, also has strong ultraviolet-proof capability, and is stable in transmission performance.

Description

Technical Field

[0001] This utility model relates to the field of control cable technology, specifically a copper core soft conductor cross-linked polyethylene insulated polyvinyl chloride sheathed control cable. Background Technology

[0002] In modern electrical systems, control cables play a crucial role. They are responsible not only for transmitting current and signals in power and automation control systems, but also for possessing various properties to ensure the stable operation of the system.

[0003] According to the announcement number CN211742730U, the name is a copper core cross-linked polyethylene insulated polyvinyl chloride sheathed control cable, which includes a copper core conductor, a support frame and an inner insulating sheath. Through research and analysis, it was found that although the cable has advantages such as structural stability, it also has the following disadvantages to a certain extent.

[0004] For example, control cables have insufficient drag resistance and high temperature resistance, and are prone to mechanical damage and sheathing. Furthermore, cables exposed to sunlight for extended periods and subjected to strong external pressure pose significant risks to the safe use of the main equipment. To address these technical issues, it is necessary to design a copper core soft conductor cross-linked polyethylene insulated polyvinyl chloride sheathed control cable. Utility Model Content

[0005] The purpose of this utility model is to provide a copper core soft conductor cross-linked polyethylene insulated polyvinyl chloride sheathed control cable, which has the advantages of effectively preventing strong external compression without deviating from the original position, thus improving safety. It also solves the problems of not being able to provide excellent bending resistance and fatigue resistance, and having relatively poor UV protection and high temperature fire resistance.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a copper core flexible conductor cross-linked polyethylene insulated polyvinyl chloride sheathed control cable, comprising a copper core flexible conductor, the surface of which is wrapped with a fluororubber insulation layer, the surface of which is provided with a fiber grease layer, the surface of which is wrapped with a cross-linked polyethylene insulation layer, the surface of which is provided with a metal armor layer, the surface of which is fixedly fitted with a polyvinyl chloride sheath layer, the surface of which is provided with a heat-resistant layer, the heat-resistant layer comprising a transparent Mylar layer, the surface of which is wrapped with a wrapping tape layer, the inner wall of which is provided with a low-smoke halogen-free polyolefin material layer, and the inner wall of which is provided with a reinforcing layer.

[0007] Preferably, the inner wall of the transparent Mylar layer is fixedly sleeved on the surface of the fluororubber insulation layer, and the inner wall of the low-smoke halogen-free polyolefin material layer is fixedly connected to the surface of the metal armor layer.

[0008] Preferably, the transparent Mylar layer is made of transparent Mylar, the wrapping layer is made of non-woven fabric, and the low-smoke halogen-free polyolefin material layer is made of low-smoke halogen-free polyolefin material.

[0009] Preferably, the reinforcing layer includes a filler disposed inside the fibrous grease layer, and a silicone body and an elastic column are respectively disposed between the cross-linked polyethylene insulation layer and the metal armor layer.

[0010] Preferably, the filler is made of polypropylene rope, the silicone body is made of silicone, and the elastic column is made of polyurethane resin elastic material.

[0011] Preferably, the surface of the silicone body is in movable contact with the surface of the cross-linked polyethylene insulation layer and the inner wall of the metal armor layer, respectively, and the surface of the elastic column is movably connected to the silicone body and the cross-linked polyethylene insulation layer, respectively. The number of elastic columns and fillers is several.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model, through the combination of a transparent Mylar layer, a wrapping tape layer, and a low-smoke halogen-free polyolefin material layer, enables the cable to have excellent high-temperature resistance and flame retardant properties, as well as strong UV protection and stable transmission performance.

[0014] 2. This utility model, through the combination of filler, silicone body and elastic column, utilizes the filler structure to enhance flexibility, strengthen the internal structural strength of the cable, make the wire core firmly external, effectively prevent strong external compression without deviating from the original position, and the combination of silicone body and elastic column facilitates the improvement of tensile strength. Attached Figure Description

[0015] Figure 1 This is a front view of the present utility model;

[0016] Figure 2 This is a partial three-dimensional schematic diagram of the present invention;

[0017] Figure 3 This is a partial structural diagram of the present invention.

[0018] In the diagram: 1. Copper core soft conductor; 2. Fluororubber insulation layer; 3. Fiber grease layer; 4. Cross-linked polyethylene insulation layer; 5. Metal armor layer; 6. Polyvinyl chloride sheath layer; 7. Heat-resistant layer; 8. Transparent Mylar layer; 9. Wrapping tape layer; 10. Low-smoke halogen-free polyolefin material layer; 11. Reinforcing layer; 12. Filler; 13. Silicone body; 14. Elastic column. Detailed Implementation

[0019] Please see Figures 1-3 A copper core flexible conductor cross-linked polyethylene insulated polyvinyl chloride sheathed control cable includes a copper core flexible conductor 1, the surface of the copper core flexible conductor 1 is wrapped with a fluororubber insulation layer 2, the surface of the fluororubber insulation layer 2 is provided with a fiber grease layer 3, the surface of the fiber grease layer 3 is wrapped with a cross-linked polyethylene insulation layer 4, the surface of the cross-linked polyethylene insulation layer 4 is provided with a metal armor layer 5, the surface of the metal armor layer 5 is fixedly sleeved with a polyvinyl chloride sheath layer 6, the surface of the fluororubber insulation layer 2 is provided with a heat-resistant layer 7, the heat-resistant layer 7 includes a transparent Mylar layer 8, the surface of the transparent Mylar layer 8 is wrapped with a wrapping tape layer 9, the inner wall of the polyvinyl chloride sheath layer 6 is provided with a low smoke halogen-free polyolefin material layer 10, and the inner wall of the metal armor layer 5 is provided with a reinforcing layer 11.

[0020] Please see Figure 1 and Figure 2 The inner wall of the transparent Mylar layer 8 is fixedly sleeved on the surface of the fluororubber insulation layer 2, and the inner wall of the low-smoke halogen-free polyolefin material layer 10 is fixedly connected to the surface of the metal armor layer 5. By setting the transparent Mylar layer 8, the excellent electrical insulation performance can remain stable within a certain high temperature range, and the high tensile strength and good elongation can adapt to certain deformations without affecting the performance.

[0021] Please see Figure 1 and Figure 2 The transparent Mylar layer 8 is made of transparent Mylar, the wrapping layer 9 is made of non-woven fabric, and the low-smoke halogen-free polyolefin material layer 10 is made of low-smoke halogen-free polyolefin material. By setting the wrapping layer 9, the risk of leakage and short circuit is reduced, the flexibility of the cable is increased, the cable core is prevented from being damaged by external mechanical forces, moisture and water are prevented from penetrating the inside of the cable, and the heat resistance and flame retardant properties of the cable are improved. By setting the low-smoke halogen-free polyolefin material layer 10, the cable has excellent low-smoke, halogen-free, non-toxic, non-polluting, flame-retardant, high-temperature resistant, weather-resistant and UV-resistant properties, as well as excellent electrical insulation and mechanical properties.

[0022] Please see Figure 1 and Figure 3The reinforcing layer 11 includes a filler 12, which is disposed inside the fiber grease layer 3. A silicone body 13 and an elastic column 14 are respectively disposed between the cross-linked polyethylene insulation layer 4 and the metal armor layer 5. By providing the reinforcing layer 11, the internal structural strength of the cable can be strengthened, which facilitates the improvement of tensile strength.

[0023] Please see Figure 1 and Figure 3 The filler 12 is made of polypropylene rope, the silicone body 13 is made of silicone, and the elastic column 14 is made of polyurethane resin elastic material.

[0024] Please see Figure 1 and Figure 3 The surface of the silicone body 13 is in active contact with the surface of the cross-linked polyethylene insulation layer 4 and the inner wall of the metal armor layer 5, respectively. The surface of the elastic column 14 is in active connection with the silicone body 13 and the cross-linked polyethylene insulation layer 4, respectively. There are several elastic columns 14 and fillers 12. By setting the metal armor layer 5, the integrity of the cable structure and electrical performance are protected, and the service life of the cable is improved. By setting the cross-linked polyethylene insulation layer 4, the heat resistance and mechanical properties can be improved, shrinkage can be reduced, chemical corrosion resistance can be improved, current carrying capacity can be increased, and weight can be reduced.

[0025] In use, the fluororubber insulation layer 2 offers excellent thermal stability and flame retardancy, is virtually unaffected by temperature changes, exhibits superior electrical performance and high stability, and possesses excellent weather resistance and mechanical strength. It is also unaffected by various organic solvents. The fiber grease layer 3 effectively fills the gaps inside the cable and at the connection interfaces, forming a protective film that maintains a dry environment inside the cable for a long time, thus extending its service life. The PVC sheath layer 6 protects the inner sheath from mechanical damage and chemical corrosion and increases the cable's mechanical strength. The heat-resistant layer 7... It can operate stably for a long time within the temperature range, maintaining stable transmission performance. The filler 12 has excellent properties such as high temperature resistance, oxidation resistance, acid and alkali corrosion resistance, and UV resistance. It can withstand large tensile strength and is not easy to break. Combined with the good elasticity and flexibility of the silicone body 13, it can help it return to its original position. It is also resistant to high temperature and cold, which can effectively prevent the loosening and displacement of the internal core of the cable and ensure the integrity of the internal structure of the cable. The elastic column 14 is set to give the cable good elasticity, shock absorption and energy absorption performance. This material of the support column can maintain good recovery and stability when subjected to tension.

[0026] In summary, this copper-core flexible conductor cross-linked polyethylene insulated PVC sheathed control cable, through the combination of copper core flexible conductor 1, fluororubber insulation layer 2, fiber grease layer 3, cross-linked polyethylene insulation layer 4, metal armor layer 5, PVC sheath layer 6, heat-resistant layer 7, and reinforcing layer 11, solves the problems of not being able to provide excellent bending resistance and fatigue resistance, and the relatively poor UV protection and high-temperature fire resistance of the cable.

Claims

1. A copper core flexible conductor cross-linked polyethylene insulated polyvinyl chloride sheathed control cable, comprising a copper core flexible conductor (1), characterized in that: The surface of the copper core soft conductor (1) is wrapped with a fluororubber insulation layer (2), the surface of the fluororubber insulation layer (2) is provided with a fiber grease layer (3), the surface of the fiber grease layer (3) is wrapped with a cross-linked polyethylene insulation layer (4), the surface of the cross-linked polyethylene insulation layer (4) is provided with a metal armor layer (5), the surface of the metal armor layer (5) is fixedly fitted with a polyvinyl chloride sheath layer (6), the surface of the fluororubber insulation layer (2) is provided with a heat-resistant layer (7), the heat-resistant layer (7) includes a transparent Mylar layer (8), the surface of the transparent Mylar layer (8) is wrapped with a wrapping tape layer (9), the inner wall of the polyvinyl chloride sheath layer (6) is provided with a low-smoke halogen-free polyolefin material layer (10), and the inner wall of the metal armor layer (5) is provided with a reinforcing layer (11).

2. A control cable having a copper core, a flexible conductor, cross-linked polyethylene insulation and a polyvinyl chloride jacket according to claim 1, characterized in that: The inner wall of the transparent Mylar layer (8) is fixedly sleeved on the surface of the fluororubber insulation layer (2), and the inner wall of the low smoke halogen-free polyolefin material layer (10) is fixedly connected to the surface of the metal armor layer (5).

3. The control cable with copper core soft conductor, cross-linked polyethylene insulation, and polyvinyl chloride sheath according to claim 1, characterized in that: The transparent Mylar layer (8) is made of transparent Mylar, the wrapping layer (9) is made of non-woven fabric, and the low-smoke halogen-free polyolefin material layer (10) is made of low-smoke halogen-free polyolefin material.

4. The control cable with copper core soft conductor, cross-linked polyethylene insulation, and polyvinyl chloride sheath according to claim 1, characterized in that: The reinforcing layer (11) includes a filler (12), which is disposed inside the fiber grease layer (3). A silicone body (13) and an elastic column (14) are respectively disposed between the cross-linked polyethylene insulation layer (4) and the metal armor layer (5).

5. A copper core soft conductor cross-linked polyethylene insulated polyvinyl chloride sheathed control cable according to claim 4, characterized in that: The filler (12) is made of polypropylene rope, the silicone body (13) is made of silicone, and the elastic column (14) is made of polyurethane resin elastic material.

6. A copper core soft conductor cross-linked polyethylene insulated polyvinyl chloride sheathed control cable according to claim 4, characterized in that: The surface of the silicone body (13) is in active contact with the surface of the cross-linked polyethylene insulation layer (4) and the inner wall of the metal armor layer (5), respectively. The surface of the elastic column (14) is in active connection with the silicone body (13) and the cross-linked polyethylene insulation layer (4), respectively. The number of elastic columns (14) and fillers (12) is several.

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