Photoelectric hybrid cable

Abstract

The utility model discloses a photoelectric hybrid cable, which comprises five groups of wire cores, the five groups of wire cores are mutually twisted, each wire core is composed of a copper core and a first insulating layer, a first shielding layer is arranged outside the first insulating layer, optical fibers are arranged inside the wire cores, a wrapping layer is arranged outside the optical fibers, and a second shielding layer is arranged outside the wrapping layer. The cable core and the optical fiber form a cable core, a second insulating layer is arranged outside the cable core, a filling layer is arranged at the gap between the second insulating layer and the cable core and the gap between the second insulating layer and the optical fiber, a second shielding layer is arranged outside the second insulating layer, an armor layer is arranged outside the second shielding layer, and a composite function layer is arranged outside the armor layer. The composite functional layer is composed of a composite belting layer and a composite tough layer, a protective layer is arranged outside the functional layer, the protective layer is composed of a waterproof layer, a flame-retardant layer and a wear-resistant layer, and the structure solves the problems that the protection performance of the cable is not good enough, and the supporting performance of the optical fiber and the wire core is not good enough.

Description

Technical Field

[0001] The utility model relates to the technical field of optical - electrical hybrid cables, and specifically relates to an optical - electrical hybrid cable. Background Technique

[0002] An optical - electrical hybrid cable, also known as an optical - electrical composite cable, is a hybrid - type cable integrating optical fibers and conductive copper wires. It can solve the problems of data transmission and device power supply simultaneously, realizing the dual functions of optical - fiber communication and power transmission. The optical - electrical hybrid cable integrates optical fibers and copper conductors in one cable. The optical fibers use the principle of total internal reflection of light for data transmission, and the conductive copper wires use metal as the transmission medium.

[0003] For example, the Chinese patent "An Optical - Electrical Hybrid Cable" with the publication number CN211907087U includes a cable body, an outer sheath, a compressive layer, an antistatic layer, corrugations, a water - blocking tape, a tearing rope, a core, water - blocking sand, optical fibers, loose tubes, conductors, and insulating layers. The cable body includes an outer sheath, a compressive layer, an antistatic layer, corrugations, a water - blocking tape, and a tearing rope. The outer sheath wraps around the outside of the cable body. The compressive layer wraps around the inside of the outer sheath. The corrugations are bonded to the inside of the compressive layer through the antistatic layer. The water - blocking tape is arranged inside the corrugations. The tearing rope is arranged inside the water - blocking tape. The core is arranged inside the cable body. The loose tubes are arranged around the core. The optical fibers are arranged inside the loose tubes. The conductors are arranged inside the cable body. The insulating layers wrap around the outside of the conductors. The water - blocking sand is arranged inside the cable body. The outer sheath is made of LSZH material. The corrugations are made of ECCS material. The insulating layers are made of XLPE material. The core is made of CSMFRP material. The compressive layer is made of polypropylene material.

[0004] Although the above - mentioned prior art can achieve optical - fiber communication and power transmission, in actual use, on the one hand, the cable protection performance is not good enough. When the cable core formed by the combination of optical fibers and the core is impacted, the optical fibers are prone to bending and breaking, thus shortening the service life of the cable. On the other hand, the support performance of the optical fibers and the core is not good enough. Usually, the optical fibers and the core are directly inserted into the cable core, resulting in a certain gap between the optical fibers and the core, thus affecting the anti - bending performance of the cable. Therefore, it does not meet the existing requirements, and for this reason, we propose an optical - electrical hybrid cable. Content of the Utility Model

[0005] The purpose of the utility model is to provide an optical - electrical hybrid cable to solve the problems of insufficient cable protection performance and insufficient support performance between optical fibers and the core proposed in the above - mentioned background technique.

[0006] To achieve the above object, the present utility model provides the following technical solution: An optoelectronic hybrid cable includes a wire core. There are five groups of wire cores which are twisted with each other. The wire core is composed of a copper core and a first insulating layer. A first shielding layer is arranged outside the first insulating layer. Optical fibers are arranged inside the space between the wire cores. A cladding is arranged outside the optical fibers. The wire cores and the optical fibers form a cable core. A second insulating layer is arranged outside the cable core. A filling layer is arranged at the gap between the second insulating layer and the wire cores and the optical fibers. A second shielding layer is arranged outside the second insulating layer. An armor layer is arranged outside the second shielding layer. A composite functional layer is arranged outside the armor layer. The composite functional layer is composed of a composite tape layer and a composite toughness layer. A protective layer is arranged outside the functional layer. The protective layer is composed of a waterproof layer, a flame retardant layer and a wear-resistant layer.

[0007] Preferably, the composite toughness layer is composed of a toughness outer layer and a toughness inner layer. The toughness inner layer is fixed outside the armor layer through an extrusion equipment. The toughness outer layer is fixed outside the toughness inner layer through an extrusion equipment.

[0008] Preferably, the composite tape layer is composed of a strengthening tape layer and a basic tape layer. The basic tape layer is fixed outside the toughness outer layer through a winding equipment. The strengthening tape layer is fixed outside the basic tape layer through a winding equipment.

[0009] Preferably, the waterproof layer is sprayed outside the strengthening tape layer through a spraying equipment. The flame retardant layer is fixed outside the waterproof layer through an extrusion equipment. The wear-resistant layer is fixed outside the flame retardant layer through an extrusion equipment.

[0010] Preferably, the armor layer is fixed outside the second shielding layer through a winding equipment.

[0011] Preferably, the first insulating layer is fixed outside the wire core through an extrusion equipment. The cladding is fixed outside the optical fiber through an extrusion equipment.

[0012] Preferably, the first shielding layer is fixed outside the first insulating layer through an extrusion equipment. The second shielding layer is fixed outside the second insulating layer through an extrusion equipment.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] 1. By providing a functional layer, the utility model can improve the anti-bending performance of the cable. A composite tape layer is arranged on the outer layer of the functional layer. The composite tape layer can effectively fix components such as the conductor and insulation layer of the cable together, preventing them from shifting or loosening during use. At the same time, multiple layers of tape can increase the tensile strength of the cable, enabling it to withstand greater tensile force without being easily broken. A composite toughness layer is arranged on the inner layer of the functional layer. The composite toughness layer can enhance the resistance of the cable when it is bent, reducing damage to the internal structure of the cable caused by bending. At the same time, the composite toughness layer can absorb and disperse external impact forces, reducing damage to the cable when it is subjected to external impact.

[0015] 2. By providing a filling layer, the utility model can reduce the gaps between the optical fibers and the cores. The filling layer can effectively protect the internal structure of the cable from being squeezed and worn. During the use of the cable, especially in complex or harsh environments, the filling layer can provide additional support and cushioning to ensure that key components such as the conductor and insulation layer inside the cable are not damaged by external physical forces. The filling layer can make the shape of the cable more round and the surface smooth and flat, reducing the presence of air inside the cable. At the same time, the cores are stranded and the optical fibers are wrapped, thereby improving the protection performance of the optical fibers.

[0016] 3. By providing a protective layer, the utility model can improve the protective performance of the cable surface. A wear-resistant layer is arranged on the outermost layer of the protective layer, which can improve the wear-resistant performance of the cable. The cable may suffer various forms of friction, such as dragging on the ground and contact with other objects. The wear-resistant layer can effectively reduce the damage caused by these frictions to the cable, thereby extending the service life of the cable. A flame-retardant layer is arranged in the middle of the protective layer. When electrical faults such as short circuits and overloads occur in the cable, the flame-retardant layer can quickly contain the fire within a local range, effectively preventing the spread of the fire, thereby reducing the degree of damage caused by the fire. A waterproof layer is arranged on the innermost layer of the protective layer. The waterproof layer can effectively prevent moisture from seeping into the cable interior. It has good waterproof performance and can ensure that the cable still maintains stable electrical performance in harsh environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 is a cross-sectional view of the internal structure of the utility model;

[0019] Figure 3 is a partially enlarged view of the functional layer structure of the utility model;

[0020] Figure 4 is a partially enlarged view of the protective layer structure of the utility model.

[0021] In the figure: 1. Core; 2. First insulation layer; 3. First shielding layer; 4. Optical fiber; 5. Cladding; 6. Filling layer; 7. Second insulation layer; 8. Second shielding layer; 9. Armor layer; 10. Functional layer; 1001. Composite tape layer; 10011. Basic tape layer; 10012. Reinforcing tape layer; 1002. Composite toughness layer; 10021. Toughness outer layer; 10022. Toughness inner layer; 11. Protective layer; 1101. Waterproof layer; 1102. Flame retardant layer; 1103. Wear-resistant layer. Detailed implementation

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0023] Please refer to Figures 1-4 , an embodiment provided by the present invention: An optoelectronic hybrid cable includes a core 1. There are five groups of cores 1, and the five groups of cores 1 are twisted together. The core 1 is composed of a copper core and a first insulation layer 2. A first shielding layer 3 is arranged outside the first insulation layer 2. An optical fiber 4 is arranged inside between the cores 1. A cladding 5 is arranged outside the optical fiber 4. The core 1 and the optical fiber 4 form a cable core. A second insulation layer 7 is arranged outside the cable core. A filling layer 6 is arranged at the gap between the second insulation layer 7 and the core 1 and the optical fiber 4. A second shielding layer 8 is arranged outside the second insulation layer 7. An armor layer 9 is arranged outside the second shielding layer 8. A composite functional layer 10 is arranged outside the armor layer 9. The composite functional layer 10 is composed of a composite tape layer 1001 and a composite toughness layer 1002. A protective layer 11 is arranged outside the functional layer 10. The protective layer 11 is composed of a waterproof layer 1101, a flame retardant layer 1102 and a wear-resistant layer 1103. The filling layer 6 uses a low-smoke and halogen-free flame retardant filling rope.

[0024] Please refer to Figure 2 and Figure 3 , the composite toughness layer 1002 is composed of a toughness outer layer 10021 and a toughness inner layer 10022. The toughness inner layer 10022 is fixed outside the armor layer 9 through an extrusion device. The toughness outer layer 10021 is fixed outside the toughness inner layer 10022 through an extrusion device. The toughness inner layer 10022 uses a special polyolefin material, and the toughness outer layer 10021 uses a rubber mixed with silicon dioxide material, which is convenient to improve the anti-bending ability of the cable through the composite toughness layer 1002.

[0025] Please refer to Figure 2 and Figure 3, the composite tape layer 1001 consists of a reinforcing tape layer 10011 and a base tape layer 10012. The base tape layer 10012 is fixed to the outside of the ductile outer layer 10021 by a wrapping device, and the reinforcing tape layer 10011 is fixed to the outside of the base tape layer 10012 by a wrapping device. The base tape layer 10012 uses a low-smoke and halogen-free flame-retardant tape, and the reinforcing tape layer 10011 uses a steel tape, which is convenient to improve the tensile strength of the cable through the composite tape layer 1001.

[0026] Please refer to Figure 2 and Figure 4 , the waterproof layer 1101 is sprayed on the outside of the reinforcing tape layer 10011 by a spraying device, the flame-retardant layer 1102 is fixed to the outside of the waterproof layer 1101 by an extrusion device, and the wear-resistant layer 1103 is fixed to the outside of the flame-retardant layer 1102 by an extrusion device. The waterproof layer 1101 uses an epoxy coal tar pitch coating, the flame-retardant layer 1102 uses a polyvinyl chloride material, and the wear-resistant layer 1103 uses a polyurethane rubber material, which is convenient to improve the protection performance of the cable through the protection layer 11.

[0027] Please refer to Figure 2 , the armor layer 9 is fixed to the outside of the second shielding layer 8 by a wrapping device. The armor layer 9 uses galvanized steel wires, which is convenient to improve the impact resistance of the cable through the armor layer 9. The first insulating layer 2 is fixed to the outside of the conductor core 1 by an extrusion device, the second insulating layer 7 is fixed to the outside of the second shielding layer 8 by an extrusion device, and the cladding layer 5 is fixed to the outside of the optical fiber 4 by an extrusion device.

[0028] Please refer to Figure 2 , the first insulating layer 2 is fixed to the outside of the conductor core 1 by an extrusion device, the cladding layer 5 is fixed to the outside of the optical fiber 4 by an extrusion device. The first insulating layer 2, the second insulating layer 7 and the cladding layer 5 all use a low-smoke and halogen-free flame-retardant thermoplastic polyurethane elastomer material, which is convenient to improve the insulation between the conductor core 1 and the optical fiber 4 through the first insulating layer 2, the second insulating layer 7 and the cladding layer 5.

[0029] Please refer to Figure 2 , the first shielding layer 3 is fixed to the outside of the first insulating layer 2 by an extrusion device, the second shielding layer 8 is fixed to the outside of the second insulating layer 7 by an extrusion device. The first shielding layer 3 and the second shielding layer 8 both use a conductive PVC material, which is convenient to improve the shielding performance of the cable core through the first shielding layer 3 and the second shielding layer 8.

[0030] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claimed rights.

Claims

1. An optoelectronic hybrid cable includes a core (1), and there are five groups of cores (1) which are twisted with each other. It is characterized in that: The core (1) is composed of a copper core and a first insulating layer (2). A first shielding layer (3) is arranged outside the first insulating layer (2). An optical fiber (4) is arranged inside among the cores (1). A cladding layer (5) is arranged outside the optical fiber (4). The core (1) and the optical fiber (4) form a cable core. A second insulating layer (7) is arranged outside the cable core. A filling layer (6) is arranged at the gap between the second insulating layer (7) and the core (1) and the optical fiber (4). A second shielding layer (8) is arranged outside the second insulating layer (7). An armor layer (9) is arranged outside the second shielding layer (8). A composite functional layer (10) is arranged outside the armor layer (9). The composite functional layer (10) is composed of a composite tape layer (1001) and a composite toughness layer (1002). A protective layer (11) is arranged outside the functional layer (10). The protective layer (11) is composed of a waterproof layer (1101), a flame-retardant layer (1102), and a wear-resistant layer (1103).

2. The hybrid optoelectronic cable according to claim 1, characterized in that: The composite toughness layer (1002) is composed of a toughness outer layer (10021) and a toughness inner layer (10022). The toughness inner layer (10022) is fixed outside the armor layer (9) through an extrusion equipment. The toughness outer layer (10021) is fixed outside the toughness inner layer (10022) through an extrusion equipment.

3. The optoelectronic hybrid cable according to claim 2, characterized in that: The composite tape layer (1001) is composed of a reinforcing tape layer (10011) and a base tape layer (10012). The base tape layer (10012) is fixed outside the toughness outer layer (10021) through a winding equipment. The reinforcing tape layer (10011) is fixed outside the base tape layer (10012) through a winding equipment.

4. The hybrid optoelectronic cable according to claim 3, wherein: The waterproof layer (1101) is sprayed outside the reinforcing tape layer (10011) through a spraying equipment. The flame-retardant layer (1102) is fixed outside the waterproof layer (1101) through an extrusion equipment. The wear-resistant layer (1103) is fixed outside the flame-retardant layer (1102) through an extrusion equipment.

5. The optoelectronic hybrid cable according to claim 4, characterized in that: The armor layer (9) is fixed outside the second shielding layer (8) through a winding equipment.

6. The optoelectronic hybrid cable according to claim 5, wherein: The first insulating layer (2) is fixed outside the core (1) through an extrusion equipment. The cladding layer (5) is fixed outside the optical fiber (4) through an extrusion equipment.

7. The optoelectronic hybrid cable according to claim 6, wherein: The first shielding layer (3) is fixed outside the first insulating layer (2) through an extrusion equipment. The second shielding layer (8) is fixed outside the second insulating layer (7) through an extrusion equipment.

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