Photoelectric hybrid cable and communication system

Abstract

The utility model relates to a photoelectric hybrid cable and a communication system. The photoelectric hybrid cable comprises a cable core, a spiral armor and an outer sheath, the cable core comprises an optical unit and an electric unit, the optical unit and the electric unit are mutually twisted and wrapped with a water-blocking tape to form the cable core, and glass yarns are filled between the water-blocking tape and the optical unit and between the water-blocking tape and the electric unit; the spiral armor is coated on the water-blocking tape; the outer sheath is wrapped on the spiral armor, and the outer sheath is of a bamboo-shaped structure. According to the photoelectric hybrid cable of the utility model, the optical unit and the electric unit are arranged in a central symmetry manner, so that the roundness and the structural symmetry of the cable can be ensured, the optical unit and the electric unit are made of materials with good bending resistance, and the bending resistance of the whole cable can be further ensured in cooperation with the spiral armoring and the outer sheath with a bamboo-like structure; and meanwhile, the cable core is filled with the glass yarns, so that the tensile strength and the rat bite resistance of the cable are improved, and the photoelectric hybrid cable can meet the indoor complex installation environment.

Description

Technical Field

[0001] This utility model relates to the field of optoelectronic hybrid cable technology, and in particular to an optoelectronic hybrid cable and communication system. Background Technology

[0002] The hybrid optical-electric cable is an integrated transmission medium that organically combines metal conductors and optical fibers to transmit electrical energy and optical information simultaneously, along the same path, and in the same direction. It realizes the integrated fusion of power flow, service flow, and information flow. Through a single installation, construction, and investment, it can transmit voice, data, video, and other information while transmitting high-voltage electrical energy, greatly shortening the construction period, reducing construction costs, saving resources, and laying a solid foundation for the construction of smart grids.

[0003] When fiber optic hybrid cables are laid indoors, due to the complexity of indoor spaces, they often need to be laid in multiple sections and at multiple frequencies. Existing fiber optic hybrid cables have poor bending resistance and cannot meet the laying requirements well. This can easily lead to damage at the bending points, affecting the construction cycle and increasing the laying cost. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is to overcome the problem that when the existing optical-electric hybrid cable is laid indoors, due to the complexity of the indoor space, the optical-electric hybrid cable often needs to be laid in multiple sections and at multiple frequencies. The existing optical-electric hybrid cable has poor bending resistance and cannot meet the laying requirements well. It is easy for the bending parts to be damaged, which affects the construction cycle and increases the laying cost.

[0005] To solve the above-mentioned technical problems, this utility model provides a hybrid optical-electric cable, comprising:

[0006] The cable core includes an optical unit and an electrical unit. The optical unit and the electrical unit are twisted together and wrapped with a water-blocking tape to form the cable core. Glass yarn is filled between the water-blocking tape and the optical unit and the electrical unit.

[0007] Spiral armor, wherein the spiral armor covers the water-blocking strip;

[0008] An outer sheath covers the spiral armor, and the outer sheath has multiple annular grooves arranged evenly along its length on its side to form a bamboo-like structure.

[0009] In one embodiment of this utility model, the electrical unit is provided in two sets, and each set of electrical units includes a conductor and an insulating layer covering the conductor.

[0010] In one embodiment of this utility model, the conductor is a copper conductor and the insulation layer is a PVC insulation layer.

[0011] In one embodiment of this utility model, on any cross-section of the cable core, the center line connecting the optical unit and the two electrical units forms an equilateral triangle.

[0012] In one embodiment of the present invention, the optical unit includes multiple sets of optical fiber cores, each optical fiber core being a flat strip structure, and the multiple sets of optical fiber cores are stacked together in parallel and covered with a water-blocking layer, the water-blocking layer being covered with a flexible PBT sleeve.

[0013] In one embodiment of the present invention, the optical fiber core includes multiple optical fibers, which are connected side by side along a direction perpendicular to the length of the optical fiber core and cured with resin to form a strip-shaped optical fiber core.

[0014] In one embodiment of this utility model, each of the optical fibers is provided with a different color mark.

[0015] In one embodiment of the present invention, a central reinforcing member is further included, wherein the optical unit and the electrical unit are twisted onto the central reinforcing member.

[0016] In one embodiment of this utility model, the outer sheath is made of LSZH material.

[0017] A communication system comprising a hybrid optical-electric cable as described in any of the preceding claims.

[0018] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art:

[0019] This utility model discloses a hybrid optical-electric cable and communication system, comprising a cable core, a spiral armor, and an outer sheath. The cable core includes optical units and electrical units, which are twisted together and wrapped with a water-blocking tape to form the cable core. Glass fiber is filled between the water-blocking tape and the optical and electrical units. The spiral armor covers the water-blocking tape. The outer sheath covers the spiral armor, and multiple annular grooves arranged coaxially along its length on the side of the outer sheath form a bamboo-like structure. This hybrid optical-electric cable ensures the roundness and structural symmetry of the cable by symmetrically arranging the optical and electrical units. Both the optical and electrical units are made of materials with good bending resistance, and the spiral armor and bamboo-like outer sheath further guarantee the bending resistance of the entire cable. The glass fiber filling in the cable core enhances the tensile strength and rodent resistance, enabling the hybrid optical-electric cable to meet the requirements of complex indoor installation environments. Attached Figure Description

[0020] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the overall structure of the optoelectronic hybrid cable according to a preferred embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the cable core of the optoelectronic hybrid cable according to a preferred embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the optical unit of the optoelectronic hybrid cable according to a preferred embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the outer sheath of the optoelectronic hybrid cable according to a preferred embodiment of the present invention.

[0025] Explanation of reference numerals in the accompanying drawings: 1. Cable core; 11. Optical unit; 111. Optical fiber core; 112. Water-blocking layer; 113. Flexible PBT sheath; 12. Electrical unit; 121. Conductor; 122. Insulation layer; 13. Water-blocking tape; 14. Glass yarn; 2. Spiral armor; 3. Outer sheath; 31. Annular groove. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention. Example

[0027] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this utility model discloses a hybrid optical-electric cable and communication system, comprising,

[0028] Cable core 1 includes optical unit 11 and electrical unit 12. Optical unit 11 and electrical unit 12 are twisted together and wrapped with water-blocking tape 13 to form cable core. Glass yarn 14 is filled between water-blocking tape 13 and optical unit 11 and electrical unit 12.

[0029] Spiral armor 2, spiral armor 2 is wrapped around water-blocking strip 14;

[0030] The outer sheath 3 covers the spiral armor 2, and multiple annular grooves 31 are coaxially formed on the side of the outer sheath 3, which are evenly spaced along its length to form a bamboo-like structure.

[0031] Specifically, this utility model discloses a hybrid optical-electric cable comprising an optical unit 11 and an electrical unit 12 twisted together and wrapped with a water-blocking tape 14. The optical unit 11 uses a strip-shaped optical fiber core 111 and a flexible PBT sheath 113, while the electrical unit 12 uses a soft copper conductor and a flexible insulation layer 122 to maximize the cable core's bending resistance. Glass fiber 14 is filled between the water-blocking tape 13 and the optical and electrical units 11 and 12, enhancing the cable's tensile strength. Furthermore, a spiral armor 2 and a bamboo-like outer sheath 3, sequentially wrapped around the water-blocking tape 13, further improve the cable's bending resistance, meeting the requirements for installation in complex indoor spaces and preventing damage during stretching and bending. It is conceivable that the glass fiber 14 and spiral armor 2 also prevent rodent gnawing, ensuring the safe and stable operation of the hybrid optical-electric cable.

[0032] This utility model discloses a hybrid optical-electric cable. The optical unit 11 and the electrical unit 12 are centrally symmetrically arranged to ensure the roundness and structural symmetry of the cable. Both the optical unit 11 and the electrical unit 12 are made of materials with good bending resistance. The spiral armor 2 and the bamboo-shaped outer sheath 3 further ensure the bending resistance of the entire cable. At the same time, glass yarn 14 is filled in the cable core 1 to improve the tensile strength and rodent bite resistance of the cable, so that the hybrid optical-electric cable can meet the complex indoor installation environment.

[0033] Reference Figure 1 and Figure 2 As shown, the electrical unit 12 is further provided in two sets, and each set of electrical units 12 includes a conductor 121 and an insulating layer 122 covering the conductor 121.

[0034] Furthermore, conductor 121 is made of copper, and insulation layer 122 is made of PVC insulation layer.

[0035] Furthermore, on any cross-section of the cable core 1, the center line connecting the optical unit 11 and the two electrical units 12 forms an equilateral triangle. Specifically, the symmetrical arrangement of one optical unit 11 and two electrical units 12 (in a triangular arrangement) ensures the roundness of the entire cable while maintaining relative stability of the internal structure when subjected to external forces, thereby further ensuring the strength and bending resistance of the entire optoelectronic hybrid cable.

[0036] Reference Figure 3As shown, the optical unit 11 further includes multiple sets of optical fiber cores 111. Each optical fiber core 111 has a flat, ribbon-like structure, and these multiple sets of optical fiber cores 111 are stacked in parallel and covered with a water-blocking layer 112. A flexible PBT sleeve 113 is then fitted over the water-blocking layer 112. It is conceivable that the flat, ribbon-like optical fiber cores 111 improve the bending resistance of the optical unit 11 and the entire cable, and also improve construction efficiency. Specifically, the optical unit 11 adopts a fully dry structure, eliminating the need for operators to apply fiber optic paste during construction, thus improving construction efficiency.

[0037] Furthermore, the optical fiber core 111 includes multiple optical fibers, which are connected side by side along a direction perpendicular to the length of the optical fiber core 111 and cured with resin to form a ribbon-shaped optical fiber core 111.

[0038] Furthermore, each optical fiber is marked with a different color to facilitate quick identification of each fiber by operators during construction, thereby improving construction efficiency.

[0039] Furthermore, it also includes a central reinforcement member, on which the optical unit 11 and the electrical unit 12 are twisted together. The central reinforcement member is made of a flexible material, which can further improve the tensile strength and bending resistance of the entire optoelectronic hybrid cable.

[0040] Furthermore, the outer sheath 3 is made of LSZH material. LSZH material (low smoke halogen-free material) has good high temperature resistance and mechanical properties, which can improve the overall strength and flame retardant properties of the optical-electric hybrid cable. Example

[0041] This utility model also discloses a communication system, including the optoelectronic hybrid cable as described in Embodiment 1.

[0042] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A hybrid optical-electric cable, characterized in that, include: The cable core includes an optical unit and an electrical unit. The optical unit and the electrical unit are twisted together and wrapped with a water-blocking tape to form the cable core. Glass yarn is filled between the water-blocking tape and the optical unit and the electrical unit. Spiral armor, wherein the spiral armor covers the water-blocking strip; An outer sheath covers the spiral armor, and the outer sheath has multiple annular grooves arranged evenly along its length on its side to form a bamboo-like structure.

2. The optoelectronic hybrid cable according to claim 1, characterized in that: The electrical unit is provided in two sets, and each set of electrical units includes a conductor and an insulating layer covering the conductor.

3. The optoelectronic hybrid cable according to claim 2, characterized in that: The conductor is made of copper, and the insulation layer is made of PVC.

4. The optoelectronic hybrid cable according to claim 2, characterized in that: On any cross-section of the cable core, the center line connecting the optical unit and the two electrical units forms an equilateral triangle.

5. The optoelectronic hybrid cable according to claim 1, characterized in that: The optical unit includes multiple sets of optical fiber cores, each of which is a flat, ribbon-like structure. The multiple sets of optical fiber cores are stacked in parallel and covered with a water-blocking layer. The water-blocking layer is covered with a flexible PBT sleeve.

6. The optoelectronic hybrid cable according to claim 5, characterized in that: The optical fiber core comprises multiple optical fibers, which are connected side by side along a direction perpendicular to the length of the optical fiber core and cured with resin to form a ribbon-like optical fiber core.

7. The optoelectronic hybrid cable according to claim 6, characterized in that: Each of the optical fibers is marked with a different color.

8. The optoelectronic hybrid cable according to claim 1, characterized in that: It also includes a central reinforcement member, on which the optical unit and the electrical unit are twisted together.

9. The optoelectronic hybrid cable according to claim 1, characterized in that: The outer sheath is made of LSZH material.

10. A communication system, characterized in that: Including the hybrid optical-electric cable as described in any one of claims 1-9.

Images