Photoelectric hybrid cable and manufacturing method
By designing high tensile strength photoelectric hybrid cables and using a feeder structure combining tight-fitting optical fibers and reinforcement wires, the problem of increasing fiber strain during tensile time of existing photoelectric hybrid cables is solved, and more stable optical signal transmission is achieved.
Patent Information
- Application Number
- CN202411869996.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-03-25
AI Technical Summary
When existing photoelectric hybrid cables are stretched by external forces, the elastic modulus of the copper feeder is small, which is prone to stretching and lengthening, resulting in increased strain on the optical fiber and increased optical transmission attenuation. In severe cases, the optical fiber may break, resulting in interruption of the optical signal.
A high tensile strength photoelectric hybrid cable is designed, which comprises at least one tight sleeve optical fiber for optical signal transmission, and the fiber surface extruded and clad tight sleeve layer is covered. The two feeder wires are distributed symmetrically with the tight-sheared optical fiber as the center. The feeder wire part is combined by copper wire and reinforcement wire, wrapped around the reinforcement wire, and a V-shaped tear groove is provided on the sheath layer for easy termination.
It improves the tensile resistance of the photoelectric hybrid cable, significantly improves the short-term tensile performance of the product, ensures the stable transmission of optical signals, and avoids optical fiber breakage and optical signal interruption.
Smart Images
Figure CN119694634A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of optical cable technology, and in particular to an optoelectronic hybrid cable and a manufacturing method thereof. Background Art
[0002] . With the promotion of indoor smart home technology, the needs of remote office, online classes, high-definition video, etc. have become popular. People's requirements for communication speed have further evolved to 1000Mbps and require information points to be arranged in each room to improve the level of home intelligence and build communication networks required for home remote office, remote online education, leisure and entertainment, etc. In order to achieve fiber to the room, new requirements are put forward for wiring products. Wiring products are suitable for installation in confined environments. The same cable can not only transmit optical communication information but also transfer electrical energy to information points, which is convenient for rapid networking. With the continuous development of 5G and F5G networks, application scenarios such as POL (Passive Optical Local Access Network) and FTTR (Fiber to the Room) are becoming more and more popular. In this type of network, more and more optical-electrical hybrid cables are used for networking of the introduction section.
[0003] The structure of the optoelectronic hybrid cable includes two feeders for transmitting electrical energy and an optical fiber for transmitting optical signals. The tight-buffered optical fiber contains a standard optical fiber, which is tightly wrapped with a layer of plastic, usually polyvinyl chloride. The feeder is usually a copper wire bundle of 7 thin copper wires twisted in a 1+6 structure. The sheath is usually made of low-smoke halogen-free flame-retardant polyolefin insulation material. The role of the open-wire V-groove is to easily tear the sheath when terminating the optoelectronic hybrid cable to expose the tight-buffered optical fiber, while keeping the sheath insulation of the feeder intact.
[0004] Typical optical-electric hybrid cables are mainly installed and used in indoor environments. Only a single optical fiber is needed to meet the requirements of optical signal transmission. The cross-sectional area of a single conductor of the feeder line for transmitting electrical energy is 0.5mm 2 To 0.8mm 2 , which is a conductor with a small cross-sectional area, and the material of the feeder is copper. During the production, use and installation of the optoelectronic hybrid cable, the tight-fitting optical fiber and feeder will be subjected to a large tensile force. In order to stably transmit the optical signal, the feeder in the optoelectronic hybrid cable must also play an anti-tensile role. When the optoelectronic hybrid cable is stretched by external force, the copper feeder is prone to stretching and lengthening due to its small elastic modulus, resulting in increased strain of the optical fiber under the tensile force and increased optical transmission attenuation. In severe cases, the optical fiber breaks and the optical signal is interrupted.
[0005] Therefore, how to solve the above-mentioned deficiencies in the prior art has become a subject to be studied and solved by the present invention. Summary of the invention
[0006] In view of this, an object of the present invention is to provide an optoelectronic hybrid cable and a manufacturing method thereof.
[0007] In order to achieve the above object, the technical solution adopted by the present invention is:
[0008] An optoelectronic hybrid cable, comprising:
[0009] The sheath is flat, has a long side and a short side, a first mounting cavity is provided at the center of the sheath along the long side, and a second mounting cavity and a third mounting cavity are provided on both sides of the first mounting cavity;
[0010] V-shaped tear grooves are respectively provided on the upper plane and the lower plane of the sheath along the short side direction, and the two V-shaped tear grooves match each other up and down, and the first mounting cavity is provided between the two V-shaped tear grooves;
[0011] A tight-buffered optical fiber is inserted into the first installation cavity, the outer diameter of the tight-buffered optical fiber is 0.6 mm ± 0.1 mm, and the tight-buffered optical fiber cooperates with a termination connector;
[0012] A first electrical unit is disposed in the second installation cavity, wherein the first electrical unit comprises a first reinforcing wire and a first feeding wire, wherein the first feeding wire is disposed to wrap the first reinforcing wire;
[0013] A second electrical unit is disposed in the third installation cavity, the second electrical unit comprises a second reinforcing wire and a second feeding wire, and the second feeding wire is disposed to wrap the second reinforcing wire;
[0014] The first electrical unit and the second electrical unit are symmetrically distributed around the tight-buffered optical fiber.
[0015] Furthermore, the center distance between the first feeder line and the second feeder line is 1.8 mm-2.4 mm, and the tolerance is ±0.2 mm.
[0016] Furthermore, the first feeder line and the second feeder line each include six first copper wires, and the diameter of the first copper wire is The diameter tolerance of the first copper wires is ±0.01 mm; each of the first copper wires is twisted around the first reinforcement wire and the second reinforcement wire to form a first bundle of wires.
[0017] Furthermore, the groove depth of the two V-shaped tear grooves is 0.3mm-0.5mm, and the V-shaped angle of the two V-shaped tear grooves is 90°-120°.
[0018] Furthermore, the center distance between the first feeder line and the second feeder line is 1.8 mm-2.4 mm, and the tolerance is ±0.2 mm.
[0019] Furthermore, the first feeder line and the second feeder line each include six second copper wires, the diameter of the second copper wire is 0.15mm-0.36mm, and the diameter tolerance of the second copper wire is ±0.01mm; each of the second copper wires is twisted around the first reinforcement wire and the second reinforcement wire to form a second bundle of wires.
[0020] Furthermore, the tight-sleeved optical fiber is coated with a reinforcement layer, and the outer diameter after coating is 1.4 mm±0.1 mm.
[0021] Furthermore, the second wire bundle is coated with an insulating layer, and the thickness of the insulating layer is 0.3 mm.
[0022] Furthermore, a color strip is provided on the short side of the sheath for distinguishing the positive and negative poles; the color strip is different from the color of the sheath.
[0023] Furthermore, the long side of the sheath is 3.4mm-4.4mm, and the short side is 1.8mm-2.2mm.
[0024] Furthermore, the long side of the sheath is 5mm-6.6mm, and the short side is 1.8mm-2.6mm.
[0025] In order to solve the above technical problems, the present application also provides a method for manufacturing an optoelectronic hybrid cable, which is applied to an optoelectronic hybrid cable as described above, comprising:
[0026] Step 1: Twist the reinforcing wires and feeder wires into a bundle;
[0027] Step 2: Tightly sleeve the colored optical fiber to form a tight sleeve optical fiber;
[0028] Step 3: Extrude a sheath on the bundle and tight-buffered optical fiber, and install the color strip on the sheath.
[0029] Furthermore, an insulating layer is extruded outside the bundle in step one; and a reinforcement layer is coated outside the tight-buffered optical fiber in step two.
[0030] Compared with the prior art, the advantages of the present invention are as follows: the present application is a high-tensile-strength optoelectronic hybrid cable, which includes at least one optical fiber for optical signal transmission, and the surface of the optical fiber is extruded and coated with a tight sleeve layer to form a tight sleeve optical fiber; it includes two feeders, namely a first feeder and a second feeder, the first feeder and the second feeder are symmetrically arranged with a certain center distance around the tight sleeve optical fiber as the center, the first feeder and the second feeder may include an insulating layer, and the conductor part thereof is composed of a combination of copper wires and reinforcing wires. Generally, the reinforcing wire is located at the center of the first feeder and the second feeder, and a plurality of copper wires are twisted around the reinforcing wire, the number of copper wires is generally 6 or 8 or more, and the twisted body envelope is circular; it includes a sheath layer, which is extruded and wrapped outside the tight sleeve optical fiber, the first feeder and the second feeder, and the cross-sectional shape of the sheath is flat. For the convenience of termination, a V-shaped tearing groove is arranged on the plane, and the tight sleeve optical fiber is easily separated from the optoelectronic hybrid cable while keeping the insulation integrity of the feeder. It mainly connects the home information entry unit and the room information unit. The feeder generally carries a DC voltage of 48 volts. To indicate the polarity of the power supply, a color strip or other firm reminder mark can be set on one side of the short side of the sheath, or a color separation mark can be made on the reinforcing wire of the feeder. In addition to ensuring the basic performance of the optoelectronic hybrid cable, the present application improves the tensile strength of the product and significantly improves the short-term tensile performance of the product. BRIEF DESCRIPTION OF THE DRAWINGS
[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0032] Attached Figure 1 This is a schematic diagram of the structure of Example 1 of the present application;
[0033] Attached Figure 2 This is a schematic diagram of the structure of Example 2 of the present application.
[0034] Reference numerals and component descriptions in the drawings:
[0035] 1. Sheath; 2. V-shaped tear groove; 3. Tight-buffered optical fiber; 4. First electrical unit; 41. First reinforcement wire; 42. First feeder wire; 5. Second electrical unit; 51. Second reinforcement wire; 52. Second feeder wire; 6. Color strip; 7. First copper wire; 8. Reinforcement layer; 9. Second copper wire; 10. Insulation layer. DETAILED DESCRIPTION
[0036] The technical solution of the present invention will be clearly and completely described below through specific implementation methods. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0037] See attached Figure 1 and attached Figure 2 As shown, an optoelectronic hybrid cable comprises a sheath 1, a V-shaped tear groove 2, a tight-fitting optical fiber 3, a first electrical unit 4, a second electrical unit 5 and a color strip 6. The sheath 1 is flat and has a long side and a short side. The sheath 1 is provided with a first installation cavity in the center along the long side direction, and a second installation cavity and a third installation cavity are provided on both sides of the first installation cavity. The V-shaped tear groove 2 is respectively provided on the upper plane and the lower plane of the sheath 1 along the short side direction, and the two V-shaped tear grooves 2 match each other up and down. The first installation cavity is provided between the two V-shaped tear grooves 2. The tight-fitting optical fiber 3 is passed through the first installation cavity, and the outer diameter of the tight-fitting optical fiber 3 is 0. 6mm±0.1mm, the tight-fitting optical fiber 3 cooperates with the termination connector, the first electrical unit 4 is arranged in the second installation cavity, the first electrical unit 4 includes a first reinforcement line 41 and a first feeder line 42, the first feeder line 42 is wrapped around the first reinforcement line 41, the second electrical unit 5 is arranged in the third installation cavity, the second electrical unit 5 includes a second reinforcement line 51 and a second feeder line 52, the second feeder line 51 is wrapped around the second reinforcement line 52, the first electrical unit 4 and the second electrical unit 5 are symmetrically distributed with the tight-fitting optical fiber 3 as the center, and a color strip 6 or other firm prompt mark can be set on one side of the short side of the sheath 1.
[0038] The following is a further explanation of the above structure:
[0039] Typical optoelectronic hybrid cables are mainly installed and used in indoor environments. Only a single optical fiber is needed in the product to meet the requirements of optical signal transmission. The cross-sectional area of a single conductor of the feeder line that transmits electrical energy is between 0.5mm2 and 0.8mm2, which is a conductor with a small cross-sectional area. The material of the feeder line is copper. During the production and installation of the optoelectronic hybrid cable, the tight-buffered optical fiber and feeder line will be subjected to a large tensile force. In order to stably transmit the optical signal, the feeder line in the optoelectronic hybrid cable must also play an anti-stretching role. When the optoelectronic hybrid cable is stretched by external force, it is easy to stretch and lengthen due to the small elastic modulus of the copper feeder line, resulting in an increase in strain and optical transmission attenuation of the optical fiber under the tensile force. In severe cases, the optical fiber breaks and the optical signal is interrupted. The present application is an optoelectronic hybrid cable with high tensile strength, which includes at least one optical fiber for optical signal transmission, and the surface of the optical fiber is extruded and coated with a tight-buffered layer to form a tight-buffered optical fiber 3. It includes two feeders, namely a first feeder 42 and a second feeder 52. The first feeder 42 and the second feeder 52 are symmetrically arranged with a certain center distance around the tight-buffered optical fiber 3. The first feeder 42 and the second feeder 52 may include an insulating layer. The conductor part thereof is composed of a copper wire and a reinforcing wire. Generally, the reinforcing wire is located at the center of the feeder. A plurality of copper wires are twisted around the reinforcing wire. The number of copper wires is generally 6 or 8 or more, and the twisted body is circular. It includes a sheath 1, which is extruded and wrapped around the tight-buffered optical fiber 3, the first feeder 42 and the second feeder 52. The cross-sectional shape of the sheath 1 is flat. For the convenience of termination, a V-shaped tearing groove 2 is provided on the plane. The tight-buffered optical fiber 3 is easily separated from the optoelectronic hybrid cable, while keeping the insulation of the first feeder 42 and the second feeder 52 intact. It mainly connects the home information entry unit and the room information unit. The first feeder 42 and the second feeder 52 generally carry a DC voltage of 48 volts. To indicate the polarity of the power supply, a color strip 6 or other firm prompt mark can be provided on one side of the short side of the sheath 1, or color marking can be performed on the reinforcement lines of the first feeder 42 and the second feeder 52, thereby improving the reliability and process adaptability of the optical-electric hybrid cable during production and installation.
[0040] Different structural combination units of optical-electric hybrid cables can be combined into different product performances to meet the requirements of different production and use scenarios. The differences in product performance indicators are mainly reflected in the improvement of the product's tensile performance and the environmental adaptability of installation and use.
[0041] Embodiment 1:
[0042] See attached Figure 1As shown, the optoelectronic hybrid cable in this embodiment includes a tight-buffered optical fiber 3 and two feeders. The tight-buffered optical fiber 3 is arranged in the first cavity. The feeders include a first feeder 42 and a second feeder 52. The first feeder 42 is arranged in the second cavity, and the second feeder 52 is arranged in the third cavity. The outer diameter of the tight-buffered optical fiber 3 is 0.6±0.1 mm, which can be well matched with the termination connector.
[0043] The first feeder 42 and the second feeder 52 are symmetrically distributed on both sides of the tight-buffered optical fiber 3 with the tight-buffered optical fiber 3 as the center. The center distance between the first feeder 42 and the second feeder 52 is set according to the conductive area of the feeder, preferably 1.8mm-2.4mm, with a tolerance of ±0.2mm. The first feeder 42 and the second feeder 52 both include 6 first copper wires 7, and the diameter of the first copper wire 7 ranges from 0.17mm to 0.42mm, typically 0.17mm, 0.33mm, and 0.42mm, with a tolerance of ±0.01mm. The first feeder 42 and the second feeder 52 both include a reinforcing wire, that is, the first feeder 42 includes the first reinforcing wire 41, the first reinforcing wire 42 includes the first reinforcing wire 41, and the first reinforcing wire 42 includes the first reinforcing wire 41. The second feeder 52 includes a second reinforcing wire 51. The first reinforcing wire 41 and the second reinforcing wire 51 can be high-strength galvanized steel wire or high-modulus polymer fiber. The diameter of the high-strength galvanized steel wire can be 0.18mm, 0.35mm, 0.43mm, and the diameter tolerance is ±0.01mm. High-modulus polymer fibers such as aramid yarn and ultra-high molecular weight polyethylene fiber are made of fibers of suitable standard specifications. Six first copper wires 7 are twisted around the first reinforcing wire 41 and the second reinforcing wire 51 at a certain pitch to form a first bundle of wires. The typical values of the envelope circle diameter of the first bundle of wires are 0.6mm, 1mm, and 1.3mm, respectively. The nominal values of the conductor cross-sectional area of the first copper wire 7 are 0.13mm, respectively. 2 , 0.52mm 2 、0.81mm 2 , meeting the electrical performance requirements of the optoelectronic hybrid cable for the feeder line. The feeder line conductor part of the present application adopts a twisted combination of copper wire and reinforcing wire, and the number of copper wires and the diameter of the reinforcing wire are set according to different tensile strength requirements. Under the condition of ensuring the cross-sectional area of the conductor, the number of copper wires is increased, and the corresponding reinforcing wire diameter is increased, which can improve the tensile performance of the finished product, and solve the problem that the tensile strength of the feeder line composed of pure copper wire is not enough to protect the safety of the optical fiber under the action of tensile force.
[0044] The overall shape of the sheath layer 1 is flat, with a long side and a short side. The typical value of the long side is 3.4mm-4.4mm. An open V-shaped tear groove 2 is provided in the middle of the long side. The typical value of the depth is 0.3mm-0.5mm. The typical value of the V-shaped angle of the V-shaped tear groove 2 is 90 degrees-120 degrees. The V-shaped tear groove 2 is provided on the sheath 1. When the product is terminated, the sheath is easily split to separate the tight-fitting optical fiber and the feeder line, thereby improving the termination efficiency.
[0045] The typical value of the short side of the sheath layer 1 is 1.8mm-2.2mm. A color mark is set on one short side to indicate the polarity of the feeder connected to the DC power supply, which can be used to distinguish the polarity of the feeder connected to the power supply. The sheath material is usually low-smoke halogen-free polyolefin material, which is flame-retardant and safe, so that the product meets the safety requirements of indoor wiring.
[0046] The product processing process of Case 1 is as follows:
[0047] Step 1: twist the first reinforcing wire 41 and the six first copper wires 7 into a first bundle of wires, and also twist the second reinforcing wire 51 and the six first copper wires 7 into a first bundle of wires;
[0048] Step 2: Tightly sleeve the colored optical fiber to form a tight sleeve optical fiber 3;
[0049] Step 3: Extrude a layer of sheath 1 on the two first bundles of twisted wires and the tight-buffered optical fiber 3 , and install a color strip 6 on the sheath 1 .
[0050] In the process of this embodiment, multiple first copper wires 7 are twisted around the reinforcing wire, the tension of each twisted original is moderate, the copper wire is tightly wrapped around the reinforcing wire, and there is no wire throwing and lantern phenomenon. In the product processing process, the tension of the wire bundle is a key indicator, which affects the tensile strength of the product.
[0051] Embodiment 2:
[0052] See attached Figure 2 As shown, this application protects a novel optoelectronic hybrid cable product with a feeder line design having a reinforcing line. Its basic technology is to improve the tensile performance by setting a feeder line with a reinforcing line when the conductor cross-sectional area is limited, so as to ensure that the performance of the optoelectronic hybrid cable in production and use meets the standard requirements. In this embodiment, the optoelectronic hybrid cable comprises a tight-buffered optical fiber 3, whose outer diameter is 0.6±0.1mm, which can be well matched with the termination connector. The tight-buffered optical fiber 3 is coated with a reinforcing member layer 8, and the outer diameter after coating is 1.4±0.1mm. The reinforcing member layer material can be a high modulus polymer fiber such as aramid yarn and ultra-high molecular weight polyethylene fiber. In this embodiment, the tight-buffered optical fiber 3 is coated with a reinforcing member layer 8, which further improves the tensile performance of the finished product, and expands the product to be suitable for indoor and outdoor use environments.
[0053] The feeder includes a first feeder 42 and a second feeder 52, which are symmetrically distributed on both sides of the tight-buffered optical fiber 3 with the tight-buffered optical fiber 3 as the center. The center distance between the first feeder 42 and the second feeder 52 is determined according to the cross-sectional area of the feeder conductor, preferably in the range of 3.2mm-4mm, with a tolerance of ±0.2mm. The first feeder 42 and the second feeder 52 each include 8 second copper wires 9, the diameter of the second copper wires 9 ranges from 0.15mm to 0.36mm, typically 0.15mm, 0.29mm, and 0.36mm, and the tolerance of the diameter is ±0.01mm.
[0054] The first feeder 42 and the second feeder 52 each include a reinforcing wire, that is, the first feeder 42 includes a first reinforcing wire 41, and the second feeder 52 includes a second reinforcing wire 51. The first reinforcing wire 41 and the second reinforcing wire 51 can be high-strength galvanized steel wire or high-modulus polymer fiber. The diameter of the high-strength galvanized steel wire can be 0.24 mm, 0.47 mm, 0.59 mm, and the diameter tolerance is ±0.01 mm. High-modulus polymer fibers such as aramid yarn and ultra-high molecular weight polyethylene fibers are made of fibers of suitable standard specifications. Eight second copper wires 9 are twisted around the reinforcing wire at a certain pitch to form a second bundle of wires. The typical values of the envelope circle diameter of the second bundle of wires are 0.54 mm, 1.1 mm, and 1.4 mm, respectively. The nominal values of the conductor cross-sectional areas of the second copper wires 9 are 0.13 mm, respectively. 2 , 0.52mm 2 、0.81mm 2 The second bundle is covered with an insulating layer 10, which is 0.3 mm thick and made of polyvinyl chloride insulation material. The colors are red and green, marking the polarity of the feeder connected to the power supply. The separate insulating layer 10 improves the reliability of the feeder and is easy to terminate.
[0055] The overall shape of the sheath layer 1 is flat, with a long side and a short side. The typical value of the long side is 5mm-6.6mm, and the typical value of the short side is 1.8mm-2.6mm. The sheath material is usually a low-smoke halogen-free polyolefin material. The first feeder 42, the second feeder 52 and the tight-buffered optical fiber 3 are coated with a sheath together, which has the advantage of a compact structure. The technology of coating the reinforcement layer 8 outside the tight-buffered optical fiber 3 and the feeder reinforcement line technology combination of the present application expand the scope of use of the product and can adapt to indoor and outdoor environments.
[0056] The product processing process of Case 2 is as follows:
[0057] Step 1: twist the first reinforcing wire 41 and the eight second copper wires 9 into a second bundle of wires, twist the second reinforcing wire 51 and the eight second copper wires 9 into a second bundle of wires, and extrude an insulating layer 10 on the two second bundles of wires;
[0058] Step 2: Tightly sleeve the colored optical fiber to form a tight sleeve optical fiber 3, and coat the tight sleeve optical fiber 3 with a reinforcement layer 8;
[0059] Step 3: Extrude a layer of sheath 1 on the two twisted second bundles and the tight-buffered optical fiber 3 , and install a color strip 6 on the sheath 1 .
[0060] In the process flow of this embodiment, multiple second copper wires 9 are twisted around the reinforcing wire, the tension of each twisted original is moderate, each second copper wire 9 is tightly wrapped around the reinforcing wire, there is no wire throwing and lantern phenomenon, and the insulation layer is extruded and wrapped. In the product processing process, the wire tension of the feeder is a key indicator, which affects the tensile strength of the product.
[0061] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. An optoelectronic hybrid cable, characterized in that: include: The sheath is flat, has a long side and a short side, a first mounting cavity is provided at the center of the sheath along the long side, and a second mounting cavity and a third mounting cavity are provided on both sides of the first mounting cavity; V-shaped tear grooves are respectively provided on the upper plane and the lower plane of the sheath along the short side direction, and the two V-shaped tear grooves match each other up and down, and the first mounting cavity is provided between the two V-shaped tear grooves; A tight-buffered optical fiber is inserted into the first installation cavity, the outer diameter of the tight-buffered optical fiber is 0.6 mm ± 0.1 mm, and the tight-buffered optical fiber cooperates with a termination connector; A first electrical unit is disposed in the second installation cavity, wherein the first electrical unit comprises a first reinforcing wire and a first feeding wire, wherein the first feeding wire is disposed to wrap the first reinforcing wire; A second electrical unit is disposed in the third installation cavity, the second electrical unit comprises a second reinforcing wire and a second feeding wire, and the second feeding wire is disposed to wrap the second reinforcing wire; The first electrical unit and the second electrical unit are symmetrically distributed around the tight-buffered optical fiber.
2. The optical-electric hybrid cable according to claim 1, characterized in that: The center distance between the first feed line and the second feed line is 1.8 mm-2.4 mm, and the tolerance is ±0.2 mm.
3. The optical-electric hybrid cable according to claim 2, characterized in that: The first feed line and the second feed line each include six first copper wires, and the diameter of the first copper wire is 0.17 mm- 0.42mm, and the diameter tolerance of the first copper wire is ±0.01mm; each of the first copper wires is twisted around the first reinforcement wire and the second reinforcement wire to form a first bundle of wires.
4. The optical-electric hybrid cable according to claim 1, characterized in that: The groove depth of the two V-shaped tearing grooves is 0.3mm-0.5mm, and the V-shaped angle of the two V-shaped tearing grooves is 90°-120°.
5. The optical-electric hybrid cable according to claim 1, characterized in that: The center distance between the first feed line and the second feed line is 1.8 mm-2.4 mm, and the tolerance is ±0.2 mm.
6. The optical-electric hybrid cable according to claim 5, characterized in that: The first feed line and the second feed line each include six second copper wires, and the diameter of the second copper wire is 0.15 mm- 0.36mm, and the diameter tolerance of the second copper wire is ±0.01mm; each of the second copper wires is twisted around the first reinforcement wire and the second reinforcement wire to form a second bundle of wires.
7. The optical-electric hybrid cable according to claim 5, characterized in that: The tight-sleeved optical fiber is coated with a reinforcement layer, and the outer diameter after coating is 1.4 mm±0.1 mm.
8. The optical-electric hybrid cable according to claim 6, characterized in that: The second wire bundle is covered with an insulating layer, and the thickness of the insulating layer is 0.3 mm.
9. The optical-electric hybrid cable according to claim 1, characterized in that: A color strip is arranged on the short side of the sheath for distinguishing the positive and negative poles; the color strip is different from the color of the sheath.
10. The optical-electric hybrid cable according to claim 2, characterized in that: The long side of the sheath is 3.4mm-4.4mm, and the short side is 1.8mm-2.2mm.
11. The optical-electric hybrid cable according to claim 5, characterized in that: The long side of the sheath is 5mm-6.6mm, and the short side is 1.8mm-2.6mm.
12. A method for manufacturing an optoelectronic hybrid cable, applied to the optoelectronic hybrid cable according to any one of claims 1 to 11, the method comprising: Step 1: Twist the reinforcing wires and feeder wires into a bundle; Step 2: Tightly sleeve the colored optical fiber to form a tight sleeve optical fiber; Step 3: Extrude a sheath on the bundle and tight-buffered optical fiber, and install the color strip on the sheath.
13. The method for manufacturing an optoelectronic hybrid cable according to claim 12, characterized in that: Extrude an insulating layer on the outside of the bundle in step one; and coat a reinforcement layer on the outside of the tight-buffered optical fiber in step two.