Photoelectric hybrid cable

Abstract

The utility model relates to the technical field of wireless, transmission and bearing, in particular to a photoelectric hybrid cable. The photoelectric hybrid cable comprises a cable and an optical fiber unit, the cable comprises a cable body and at least two identification lines, and the two identification lines are arranged on the cable body at intervals; the identification line protrudes out of the cable body along the radius direction of the cable body; the optical fiber unit is installed between the two identification lines. According to the photoelectric hybrid cable, the optical fiber unit is installed in the accommodating space formed by the two identification lines, and the optical fiber unit is prevented from being damaged due to contact friction with other objects when the photoelectric hybrid cable is installed, so that the effect of protecting the optical fiber unit is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of wireless, transmission and bearing, and in particular to a photoelectric hybrid cable. Background Art

[0002] Cable is a device for transmitting electric energy or signals, and is widely used in wireless coverage of mobile communication systems. The use of cables for wireless coverage is limited by the signal source, space length and the cable itself, and optical fiber will inevitably be used to extend the signal or transmit other signals. Both ends of the cable need to be connected to a wireless radio unit, which also needs to be connected to the baseband unit through a separately laid optical cable to achieve the overall coverage of the mobile communication system, which increases material and labor costs, large engineering investment and difficulty in installation.

[0003] In the related art, optical fibers are added inside the marking wire of the cable outer sheath. When the optical cable is installed, the optical path is also laid. The installation is convenient and can reduce material and labor costs, thereby reducing project investment. However, making the inside of the marking wire hollow to add optical fibers will greatly reduce the strength of the marking wire. During construction, the marking wire and the optical fiber located therein are easily worn and damaged, which will make the optical fiber unusable. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the related art. To this end, the utility model proposes an optoelectronic hybrid cable.

[0005] An optoelectronic hybrid cable comprises:

[0006] The cable comprises a cable body and at least two identification lines, wherein the two identification lines are arranged on the cable body at intervals; the identification lines protrude from the cable body along the radial direction of the cable body;

[0007] Optical fiber unit, installed between two marking wires.

[0008] The optical-electric hybrid cable of the utility model utilizes the accommodation space formed by the two identification lines on the cable protruding along the radial direction of the cable body, and installs the optical fiber unit in the accommodation space, so as to prevent the optical fiber unit from being damaged by contact and friction with other objects when installing the optical-electric hybrid cable, thereby protecting the optical fiber unit. At the same time, the optical fiber unit can also play a certain supporting role for the identification line, so as to prevent the identification line from breaking during the installation process. In addition, the optical-electric hybrid cable of the utility model installs the optical fiber unit on the attached cable, so that the cable installation and optical path laying can be carried out simultaneously, and the installation is convenient.

[0009] Furthermore, along the radial direction of the cable body, the thickness of the optical fiber unit is less than or equal to the height of the identification line protruding from the cable body.

[0010] Furthermore, along the circumferential direction of the cable body, the optical fiber unit has a first side wall and a second side wall, the first side wall abuts against the inner side wall of one of the identification lines, and the second side wall abuts against the inner side wall of the other identification line.

[0011] Furthermore, a radiation slot area is provided on the cable body, a plurality of radiation slots are provided in the radiation slot area, and two identification lines are provided on a side of the cable body opposite to the radiation slots.

[0012] Furthermore, the setting positions of the two identification lines correspond to the center positions of the radiation slot area.

[0013] Furthermore, the number of optical fiber cores in the optical fiber unit is 1 core to 48 cores.

[0014] Furthermore, the optoelectronic hybrid cable also includes a tear cord embedded between the identification line and the optical fiber unit.

[0015] Furthermore, the cable body includes an inner conduit, an insulating layer, an outer conductor and an outer sheath, the inner conduit being the innermost layer of the cable body; the insulating layer being coated on the inner conduit; the outer conductor being coated on the insulating layer; the outer sheath being coated on the outer conductor; and the marking lines being arranged at intervals on the outer sheath.

[0016] Furthermore, the outer conductor is made of rare earth aluminum alloy.

[0017] Furthermore, the inner conduit is made of rare earth aluminum alloy.

[0018] The utility model provides an optoelectronic hybrid cable that installs an optical fiber unit in a receiving space formed by two marking lines, and prevents the optical fiber unit from being damaged by contact and friction with other objects when installing the optoelectronic hybrid cable, thereby protecting the optical fiber unit. At the same time, the optical fiber unit can also play a certain supporting role for the marking line, preventing the marking line from breaking during the installation process. In addition, the optoelectronic hybrid cable of the utility model installs the optical fiber unit on the attached cable, which can realize the simultaneous installation of the cable and the laying of the optical path, and is easy to install. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 A schematic diagram of a partial structure of an optoelectronic hybrid cable provided in an embodiment of the utility model Figure 1 .

[0021] Figure 2for Figure 1 Enlarged view of point I in the middle.

[0022] Figure 3 A schematic diagram of a partial structure of an optoelectronic hybrid cable provided in an embodiment of the utility model Figure 2 .

[0023] Figure 4 A schematic diagram of the cable body structure of the optoelectronic hybrid cable provided in an embodiment of the utility model.

[0024] Reference numerals:

[0025] 1: cable; 11: cable body; 111 inner conduit; 112 insulation layer; 113 outer conductor; 1130: radiation slot; 114: outer sheath; 12: identification line;

[0026] 2: optical fiber unit; 21: first side wall; 22: second side wall;

[0027] 3: Tear rope. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] As analyzed in the background technology, in the related technology, optical fibers are added inside the marking line of the cable outer sheath, and the marking line becomes hollow to increase the optical fiber, which greatly reduces its strength and is easily damaged by wear during construction, thus rendering the optical fiber unusable.

[0030] In order to solve the above problems existing in the existing cables, the utility model provides a photoelectric hybrid cable. According to some specific embodiments of the utility model, Figure 1 As shown, the optoelectronic hybrid cable includes a cable 1 and an optical fiber unit 2. The cable 1 includes a cable body 11 and at least two identification lines 12. The two identification lines 12 are arranged at intervals on the cable body 11. The identification lines 12 protrude from the cable body 11 along the radial direction of the cable body 11. The optical fiber unit 2 is installed between the two identification lines 12.

[0031] The cable 1 is an electric energy or signal transmission device. The utility model does not specifically limit the type of the cable 1, which can be a common cable or a leakage cable. The cable 1 includes a cable body 11, which functions as an electric energy or signal transmission device.

[0032] The main function of the identification line 12 is to provide important information for the identification, management and maintenance of the cable 1. For example, in some specific embodiments, the identification line 12 can determine the position of the slot in the leaking cable. The number of identification lines 12 can be two or more, and the number can be selected and designed according to actual design needs. The identification line 12 can be identified by color and / or number. The protruding identification line 12 is also conducive to the fit of the optoelectronic hybrid cable with the matching fixture, and can prevent the optoelectronic hybrid cable from twisting after installation.

[0033] The optical fiber unit 2 is responsible for realizing the optical / electrical and electrical / optical conversion functions, and performing necessary signal processing. The optical fiber unit 2 may include an optical fiber ribbon or an optical fiber bundle, etc., and may be a single fiber or a double fiber, etc. The optical fiber unit 2 may be an optical fiber unit directly purchased from the market.

[0034] In the above scheme, the optoelectronic hybrid cable of the present invention utilizes the accommodation space formed by the two identification lines 12 on the cable 1 protruding along the radial direction of the cable body 11, and installs the optical fiber unit 2 in the accommodation space, preventing the optical fiber unit 2 from being damaged by contact and friction with other objects when installing the optoelectronic hybrid cable, thereby protecting the optical fiber unit 2. At the same time, the optical fiber unit 2 can also play a certain supporting role for the identification line 12, preventing the identification line 12 from breaking during the installation process. In addition, the optoelectronic hybrid cable of the present invention installs the optical fiber unit 2 on the cable 1, which can realize the simultaneous installation of the cable and the laying of the optical path, and is easy to install.

[0035] According to some specific embodiments of the present invention, along the radial direction of the cable body 11, the thickness of the optical fiber unit 2 is less than or equal to the height of the marking line 12 protruding from the cable body 11. Figure 1 As shown, along the radial direction of the cable body 11 , the thickness of the optical fiber unit 2 is less than the height of the marking line 12 protruding from the cable body 11 .

[0036] In the above scheme, by limiting the thickness of the optical fiber unit 2 along the radial direction of the cable body 11 to be less than or equal to the height of the marking line 12 protruding outside the cable body 11 along the radial direction of the cable body 11, a more comprehensive protection effect can be provided to the optical fiber unit 2 located between the marking lines 12.

[0037] According to some specific embodiments of the present invention, Figure 2 As shown, along the circumferential direction of the cable body 11 , the optical fiber unit 2 has a first side wall 21 and a second side wall 22 , the first side wall 21 abuts against the inner side wall of one of the identification lines 12 , and the second side wall 22 abuts against the inner side wall of the other identification line 12 .

[0038] Abutment is a mechanical connection used to ensure stability and alignment between two components.

[0039] In the above scheme, by making the first side wall 21 and the second side wall 22 of the optical fiber unit 2 along the circumferential direction of the cable body 11 respectively abut against the inner wall of the identification line 12, the accommodating space between the two identification lines 12 can be fully utilized to accommodate a larger number of optical fibers to meet application requirements, and the abutting force between the optical fiber unit 2 and the identification line 12 can also be used to provide better support for the identification line 12.

[0040] According to some specific embodiments of the present invention, for example, when the cable 1 is a leaking cable, Figure 3 As shown, a radiation slot area is provided on the cable body 11 , and a plurality of radiation slots 1130 are opened in the radiation slot area. The identification line 12 is provided on a side of the cable body 11 opposite to the radiation slots 1130 .

[0041] The radiation slot area may include one or more rows of radiation slot groups, each row of radiation slot groups includes a plurality of radiation slots 1130 arranged along the axial direction of the cable body 11, the radiation slots 1130 serve as electromagnetic wave radiation channels, the surface where the radiation slots 1130 are located is the main radiation surface, and when the leakage cable is laid, the radiation slots 1130 face the covering area. Two adjacent radiation slots 1130 arranged symmetrically on the left and right may be in a shape, an eight-shaped shape, a U-shaped shape, etc.

[0042] In the above scheme, the identification line 12 is set on the side of the cable body 11 opposite to the radiation slot 1130, which can determine the direction of the cable during construction. When installing in a dim environment, the position of the identification line 12 can be used to identify the direction of the radiation slot 1130 of the cable.

[0043] According to some specific embodiments of the present invention, the two identification lines 12 are disposed at positions corresponding to the center positions of the radiation slot areas.

[0044] When the radiation slot area includes a row of radiation slot groups, the center position of the radiation slot area is the position of the radiation slot group. When the radiation slot area includes multiple rows of radiation slot groups, the multiple rows of radiation slot groups are evenly arranged along the circumference of the cable body 11 based on the center position of the radiation slot area, and the multiple rows of radiation slot groups radiate electromagnetic waves to the outside, thereby achieving multi-directional coverage of communication signals on the same cable.

[0045] In the above scheme, by aligning the setting positions of the two identification lines 12 with the center position of the radiation slot area, the direction of the radiation slot 1130 of the cable can be more accurately identified. At the same time, when the cable is laid, the radiation slot 1130 is oriented towards the covering area, thereby improving the installation accuracy.

[0046] According to some specific embodiments of the present invention, Figure 3As shown, the radiation slot area includes a row of radiation slot groups, and the radiation slot group includes a plurality of radiation slots 1130 arranged along the axial direction of the cable body 11. The radiation slots 1130 are located at the center opposite to the two identification lines 12.

[0047] According to some specific embodiments of the present invention, the number of optical fiber cores in the optical fiber unit 2 is 1 core to 48 cores.

[0048] The number of optical fiber cores in the optical fiber unit 2 may be 1 core, 2 cores, 4 cores, 6 cores, 8 cores, 12 cores, 24 cores or 48 cores.

[0049] Compared with the related technical solution of installing optical fibers in the marking line 12, the optoelectronic hybrid cable of the utility model can carry more optical fibers, thereby meeting more optical path requirements.

[0050] According to some specific embodiments of the present invention, Figure 2 As shown, the optoelectronic hybrid cable further includes a tear cord 3 embedded between the identification line 12 and the optical fiber unit 2 .

[0051] In the above scheme, the tear rope 3 has the function of facilitating the user to strip the cable, especially when the outer sheath of the cable needs to be stripped quickly, the user can quickly open the outer sheath of the cable by pulling the tear rope 3, which is convenient for construction and maintenance. The tear rope 3 facilitates the stripping of the cable 1 in the packaging area of ​​the optical fiber unit 2. The optical fiber unit 2 is connected to the cable body 11, and by pulling the tear rope 3, the optical fiber unit 2 drives the cable body 11 to be opened.

[0052] The cross-sectional shape of the marking line 12 of the present invention is not particularly limited, and can be circular, semicircular, square, etc., or a combination of multiple shapes. Figure 2 As shown, according to some specific embodiments of the utility model, the cross section of the identification line 12 is square at the end close to the cable body 11 and semicircular at the end away from the cable body 11. For the optical fiber unit 2 with a substantially square structure, in order to achieve a larger area of ​​contact with the identification line 12, the identification line 12 is designed to be square at the end close to the cable body 11, and the end of the identification line 12 away from the cable body 11 is designed to be semicircular. The geometric shape of the semicircular edge helps to disperse the force acting on it, thereby reducing local stress concentration, which may help to improve the wear resistance of the identification line 12 to a certain extent and avoid wear during installation.

[0053] According to some specific embodiments of the present invention, Figure 3As shown, the cable body 11 includes an inner conduit 111, an insulating layer 112, an outer conductor 113 and an outer sheath 114. The inner conduit 111 is the innermost layer of the cable body 11. The insulating layer 112 is coated on the inner conduit 111. The outer conductor 113 is coated on the insulating layer 112. The outer sheath 114 is coated on the outer conductor 113. Two identification lines 12 are arranged on the outer sheath 114 at intervals.

[0054] The inner conduit 111 is the main channel of the current signal of the cable, and can be made of rare earth aluminum alloy, copper, aluminum, or ordinary aluminum alloy, and can have a thickness of 0.25 mm to 5 mm.

[0055] The insulating layer 112 is used as a transmission channel for electromagnetic waves and can be made of foam insulating material. The thickness of the insulating layer 112 can be designed according to actual needs.

[0056] The outer conductor 113 serves as an electromagnetic shielding layer. For leaky cables, a radiation slot 1130 may be provided on the outer conductor 113 .

[0057] The outer sheath 114 plays a role in protecting the leaking cable, and can be a polyethylene sheath or a polyvinyl chloride sheath. The thickness of the outer sheath 114 can be designed according to actual needs.

[0058] According to some specific embodiments of the present invention, the outer conductor 113 is made of rare earth aluminum alloy.

[0059] In the above scheme, the outer conductor 113 of the cable body 11 is made of rare earth aluminum alloy. Rare earth aluminum alloy has the characteristics of strong flexibility, easy bending, corrosion resistance, excellent creep resistance, etc. by virtue of the synergistic effect between elements. The leakage cable with the outer conductor made of rare earth aluminum alloy is safe and stable to use in vibration places and working environments with explosion hazards like copper cables. It can also greatly improve the conductivity, hot workability, toughness and creep characteristics of the leakage cable and high temperature corrosion resistance. The leakage cable with the outer conductor made of rare earth aluminum alloy has excellent electrical and mechanical properties, low energy consumption, a service life of up to 40 years, and high safety, which is far superior to copper cables, aluminum cables and ordinary aluminum alloy cables. In addition, the rare earth aluminum alloy is lighter than the copper material, which can reduce the weight of the leakage cable and is conducive to installation.

[0060] According to some specific embodiments of the utility model, the rare earth aluminum alloy material includes, by weight percentage: Fe 0.30%~1.50%, Si≤0.10%, Cu≤0.30%, Be≤0.30%, rare earth elements 0.01%~0.80%, and the balance is Al and inevitable impurities. Rare earth elements include any one or more of Ce, La and Y. The preparation method of the rare earth aluminum alloy material includes: adding aluminum ingots to a cupola to melt to obtain aluminum liquid; adding aluminum liquid to a heat preservation furnace, adding intermediate alloy to the heat preservation furnace, standing and heat preservation to obtain aluminum alloy liquid; after refining the aluminum alloy liquid, continuous casting and rolling are performed to obtain a rare earth aluminum alloy column. The preparation method of the outer conductor is: drawing the prepared rare earth aluminum alloy column to obtain a rare earth aluminum alloy single rod; pressing and annealing the rare earth aluminum alloy single rod to obtain a rare earth alloy aluminum strip of the required width; the aluminum strip is pressed according to the requirements to form an outer conductor of a specific radiation slot group.

[0061] The material of the inner conduit 111 is selected according to the design requirements, and can be copper, ordinary aluminum alloy or rare earth aluminum alloy, etc., but is not limited thereto. According to some specific embodiments of the utility model, the inner conduit 111 is made of rare earth aluminum alloy.

[0062] In the above solution, the material of the inner conduit 111 is also made of rare earth aluminum alloy, which can further improve the electrical conductivity, hot workability, toughness and other properties of the cable 1 and further reduce the weight of the cable 1.

[0063] According to some specific embodiments of the present invention, Figure 3 and Figure 4 As shown, the radiation slot region is disposed on the outer conductor 113 .

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. An optoelectronic hybrid cable, characterized in that: include: A cable (1), the cable (1) comprising a cable body (11) and at least two identification lines (12), the two identification lines (12) being arranged at intervals on the cable body (11); the identification lines (12) protrude outside the cable body (11) along a radial direction of the cable body (11); The optical fiber unit (2) is installed between the two identification lines (12).

2. The optical-electric hybrid cable according to claim 1, characterized in that: Along the radial direction of the cable body (11), the thickness of the optical fiber unit (2) is less than or equal to the height of the identification line (12) protruding outside the cable body (11).

3. The optical-electric hybrid cable according to claim 1, characterized in that: Along the circumferential direction of the cable body (11), the optical fiber unit (2) has a first side wall (21) and a second side wall (22); the first side wall (21) abuts against the inner side wall of one of the identification lines (12), and the second side wall (22) abuts against the inner side wall of another of the identification lines (12).

4. The optical-electric hybrid cable according to claim 1, characterized in that: The cable body (11) is provided with a radiation slot area, the radiation slot area is provided with a plurality of radiation slots (1130), and the two identification lines (12) are arranged on a side of the cable body (11) opposite to the radiation slots (1130).

5. The optical-electric hybrid cable according to claim 4, characterized in that: The arrangement positions of the two identification lines (12) correspond to the central positions of the radiation slot area.

6. The optical-electric hybrid cable according to claim 1, characterized in that: The number of optical fiber cores in the optical fiber unit (2) is 1 to 48.

7. The optical-electric hybrid cable according to claim 1, characterized in that: It also comprises a tear cord (3) embedded between the marking line (12) and the optical fiber unit (2).

8. The optical-electric hybrid cable according to claim 1, characterized in that: The cable body (11) comprises: An inner conduit (111), which is the innermost layer of the cable body (11); An insulating layer (112) covering the inner conduit (111); An outer conductor (113), coated on the insulating layer (112); An outer sheath (114) is coated on the outer conductor (113); and two identification lines (12) are arranged at intervals on the outer sheath (114).

9. The optical-electric hybrid cable according to claim 8, characterized in that: The outer conductor (113) is made of rare earth aluminum alloy.

10. The optical-electric hybrid cable according to claim 8 or 9, characterized in that: The inner conduit (111) is made of a rare earth aluminum alloy material.

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