WO2015143642A1 - Photoelectric composite cable - Google Patents

Abstract

A photoelectric composite cable, comprising a live wire cable (13), an earth wire cable (11), an optical cable (12), and an embedded module (19), the optical cable (12) comprising a single-core tight-buffered optical cable (121) and a single-core tight-buffered optical cable sheath (123) covering said single-core tight-buffered optical cable (121), the single-core tight-buffered optical cable (121) having at least one external connecting optical fibre (110) used for external connection, said external connecting optical fibre (110), after being truncated at any position of the photoelectric composite cable, forming a front end tail fibre and a rear end tail fibre, the front end tail fibre being used for forming an optical fibre connector connecting to the embedded module (19); and an at least two-layer sealing plastic sheath covering the cable bundle formed of the live wire cable (13), the earth wire cable (11) and the optical cable (12), and the embedded module (19), the embedded module being in electrical communication with the live wire cable (13) and the earth wire cable (11). The present photoelectric composite cable resolves the problem in the prior art of the poor adaptability of network cabling systems to construction sites, and can shorten the on-site installation and adjustment time of the entire network cabling system.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the field of communication technologies, and more particularly to an optoelectric composite cable. BACKGROUND With the rapid development of data communication technologies and information technologies, networks have increasingly higher requirements for the performance of integrated wiring systems. The photoelectric composite cable is a cable in which an insulated conductor is added to the optical cable to integrate the optical fiber and the power transmission line. The photoelectric composite cable can simultaneously solve the problem of equipment power and equipment signal transmission, that is, retaining the characteristics of the optical cable while meeting the relevant requirements of the cable. Therefore, opto-electric composite cables are increasingly being used in network cabling systems. At present, the opto-electric composite cable is only used as a single transmission connection device, that is, for transmitting optical signals and electricity. The cable terminal of the above-mentioned photoelectric composite cable needs to add an external device such as a transmitting device and a receiving device to realize functions such as transmission or interaction of optical signals or electricity. In general, external devices (such as transmitting devices, receiving devices, etc.) connected to the opto-electric composite cable require a certain amount of space. Since the external device is connected to the cable terminal of the opto-electric composite cable, the arrangement position of the external device is limited by the position of the cable terminal. Once the external device is placed, the adjustment of the location of the external device will not be easy. Especially in the environment where the indoor space is cramped, the adjustment of the location of the external equipment is not easy. Obviously, the above-mentioned network cabling system lacks sufficient flexibility (ie, poor adaptability to the construction site), and it is impossible to cope with the situation where the pre-designed wiring scheme is different from the construction site. Moreover, the opto-electric composite cable needs to be debugged when it is connected to the external device in the field, which leads to an increase in the debugging time of the network cabling system. SUMMARY OF THE INVENTION An object of the present invention is to provide an optoelectric composite cable to solve the problem that the network cabling system has poor adaptability to the construction site in the background art, and also solves the problem that the network cabling system has a long on-site debugging time. In order to solve the above technical problem, the present invention provides the following technical solutions: The photoelectric composite cable includes: a live wire cable, a ground cable, an optical cable, and an embedded module, the optical cable comprising a single-core tight-fitting optical fiber and a single-core tight-fitting optical fiber sheath coated on the single-core tight sleeve, the single-core tight-fitting optical fiber At least one external optical fiber for external connection, the external optical fiber is cut at any position of the photoelectric composite cable to form a front end pigtail and a rear end pigtail, and the front end pigtail is used for forming and embedding a fiber optic connector connected to the module; and at least two layers of the plastic sheath sheathed on the cable bundle formed by the live wire cable, the ground cable and the optical cable, and the embedded module, the embedded module and the live wire The cable and the ground cable are electrically connected. Preferably, in the above photoelectric composite cable, the front end pigtail is connected to the embedded module as the optical fiber connector to form an optical path. Preferably, in the above photoelectric composite cable, the photoelectric composite cable further includes an optical splitter connected to the front end pigtail and dividing the front end pigtail into a main road optical fiber and a branch optical fiber, the branch circuit An optical fiber is connected to the embedded module as the optical fiber connector, and the main fiber is connected to the rear pigtail to form an optical path. Preferably, in the above-mentioned photoelectric composite cable, the embedded module has an optical splitter, the rear pigtail is connected to an output end of the embedded module, and the front pigtail passes through the optical splitter. Divided into fiber optic connectors connected to modules other than the optical splitter in the embedded module. Preferably, in the above photoelectric composite cable, the embedded module has a live wire butt wire that is butted against the live wire, and a ground wire that is butted to the ground cable, the live wire and the live wire The docking wire, and the ground wire and the ground wire are connected by a docking device. Preferably, in the above-mentioned photoelectric composite cable, the outer surface of the sealing sheath located in the second layer is provided with a texture for increasing the bonding force of the continuous sealing in the direction from the outside to the inside. Preferably, in the above photoelectric composite cable, the photoelectric composite cable further includes a reinforcing rib disposed at a center of the innermost sealing sheath, and the live wire, the ground cable and the optical cable layer are evenly distributed or uniformly distributed in the The periphery of the rib, the reinforcing rib includes a reinforcing inner core and an insulating sheath wrapped around the reinforcing inner core. Preferably, in the above photoelectric composite cable, the photoelectric composite cable further includes a plurality of reinforcing cords, and the plurality of reinforcing cords are discretely distributed in the gap of the cable bundle. Preferably, in the above photoelectric composite cable, the peeling end surface of the photoelectric composite cable is a stepped surface. Preferably, in the above photoelectric composite cable, the photoelectric composite cable further includes a wire wrapped around the cable bundle. Winding a tape and a cable filling filled between the wrapping tape and the cable bundle; or the photoelectric composite cable further includes a water blocking tape wound around the cable bundle. The photoelectric composite cable provided by the invention has an embedded module, and the embedded module is respectively connected with the live wire and the ground cable to form an electrical path, and the embedded module is connected with the external optical fiber to form an optical path to realize the normal operation of the embedded module. The method of embedding the external device does not need to consider the arrangement position and space of the external device. If adjustment is needed, it can be directly adjusted by adjusting the direction, length, layout, etc. of the photoelectric composite cable, and the adjustment is flexible, and the adjustment is relatively easy. Therefore, the photoelectric composite cable provided by the invention can make the network wiring system have stronger adaptability to the construction site. Moreover, the embedded module has been debugged before embedding the opto-electric composite cable. Therefore, the opto-electric composite cable provided by the invention can also shorten the time for on-site installation and debugging of the network cabling system.

 At the same time, the photoelectric composite cable provided by the invention adopts a single-core tight-set optical fiber, and the operator is relatively easy to perform operations such as cutting, docking, splitting, etc., and is not affected by other adjacent optical fibers or wires during operation. It does not affect the transmission of other fibers, which makes it easy to process a single fiber. Moreover, the optoelectronic composite cable of the present invention protects the cable bundle and the embedded module by using at least two layers of the sealed sheath, and firstly, the multi-layer sealing sheath has better protection performance; When the production of photoelectric composite cable or two-stage photoelectric composite cable is connected, it can be peeled off into a step surface, and then sealed, and the step surface can improve the bonding area of the continuous sealing, thereby improving the stability of the combination, and finally avoiding the current common use of jumping. The large volume problem caused by the cable connection cable can further facilitate wiring. Moreover, the multi-layered plastic sheath enables the opto-electric composite cable to better maintain the cable form.

In the photoelectric composite cable provided by the invention, since the embedded module is disposed inside the photoelectric composite cable in advance, the use of the cable can simplify the field work and make the construction on site simple. The embedded module is a function module, which can be preset or selected according to the needs of the site. For example, it can be a function module integrating transmission, broadcasting, sensing, acquisition, processing and the like. This can make the optoelectronic composite cable provided by the invention become an integrated intelligent cable integrating multi-functionality, and solves the problem of the lack of functionality of the current opto-electric composite cable only as a single transmission connection device. The photoelectric composite cable provided by the invention integrates the cable and the embedded module into an integrated structure, and the integrated structure facilitates equipment management, and at the same time reduces the risk of damage existing in the external connection, and can improve the reliability and operability of the network wiring system. Moreover, the integrated structure makes the connection between the cable and the device module more compact, can reduce the connection line and the field connection operation, thereby reducing the problem of high material cost and high construction cost in the current external connection mode. Further, the second layer of the photoelectric composite cable provided by the present invention has a specific texture on the outer surface of the second layer of the plastic sheath, so that reliable connection can be achieved. Further, the photoelectric composite cable provided by the invention increases the water blocking portion, so that the photoelectric composite cable has better waterproof performance. Further, the photoelectric composite cable provided by the invention adds a reinforcing rib or a reinforcing rope, can improve the tensile performance of the entire photoelectric composite cable, and the reinforcing rope can also fill the gap formed in the interior of the photoelectric composite cable due to the small number of optical cables. Finally, improve the mechanical properties of the opto-electric composite cable and avoid stress concentration. BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it will be apparent to those skilled in the art that Other drawings can also be obtained from these drawings on the premise of creative labor. 1 is a schematic structural view of a photoelectric composite cable according to a first embodiment of the present invention; FIG. 2 is a schematic structural view of a photoelectric composite cable according to a first embodiment of the present invention, which is provided in a bundle through-through application mode; FIG. 4 is a schematic structural diagram of a split-module application mode of a split-module module according to Embodiment 1 of the present invention; FIG. 5 is a schematic diagram of a photoelectric composite cable provided by Embodiment 1 of the present invention; FIG. 6 is a schematic structural view of a photoelectric composite cable according to Embodiment 2 of the present invention; FIG. 7 is a schematic structural view of a photoelectric composite cable according to Embodiment 2 of the present invention, which adopts a bundle through-through application mode; It is a schematic structural diagram of the photoelectric composite cable provided by the second embodiment of the present invention adopting a distributed branching application mode; 9 is a schematic structural diagram of a cascading application mode of a splitting module according to a second embodiment of the present invention; FIG. 10 is a schematic structural view of an electrical circuit of a photoelectric composite cable according to a second embodiment of the present invention; FIG. 12 is a schematic structural view of a photoelectric composite cable according to Embodiment 3 of the present invention, which is provided in a cluster through-through application mode; FIG. 13 is a distribution diagram of a photoelectric composite cable according to Embodiment 3 of the present invention. FIG. 14 is a schematic structural diagram of a cascading application mode of a splitting module according to Embodiment 3 of the present invention; FIG. 15 is a schematic diagram of a galvanic composite cable galvanic connection structure provided by Embodiment 3 of the present invention; schematic diagram. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention provide an optoelectric composite cable, which solves the problem that the network cabling system has poor adaptability to the construction site in the background art, and can shorten the on-site installation and debugging time of the entire network cabling system.

 The above-mentioned objects, features and advantages of the embodiments of the present invention will become more apparent and understood. The program is explained in further detail.

 Embodiment 1

 Referring to Figure 1, Figure 1 shows the structure of an optoelectric composite cable according to a first embodiment of the present invention.

 The optoelectronic composite cable provided in the first embodiment of the present invention comprises a live wire cable 13, a ground cable 11, a fiber optic cable 12, an embedded module (not shown) and at least two layers of plastic sheath. Preferably, the sealing sheath is two layers, respectively an inner layer sealing sheath 15 and an outer sealing sheath 14 (shown in Figure 1). The inner layer sealing sheath 15 is covered on the cable bundle and the embedded module formed by the live wire 13 , the ground cable 11 and the optical cable 12 , and the outer sealing sheath 14 is covered on the inner sealing sheath 15 on. The outer sealing sheath 14 and the inner sealing sheath 15 are detachably connected, i.e., the two can be peeled off.

In order to improve the protective performance, the photoelectric composite cable provided in the first embodiment can be provided with more layers of sealing plastic protection. The sleeve is not limited to the two layers shown in Fig. 1. When the number of the sealing sheath is more than two, in the adjacent two-layer sealing sheath, a layer of plastic sheath farther from the center of the photoelectric composite cable is coated near the center of the photoelectric composite cable. The first layer of the plastic sheath is attached, and the two are detachably connected to realize the peeling of the sealing sheath when the photoelectric composite cable is continuously sealed. Typically, the encapsulated jacket can be made of PVC (Polyvinyl chloride, Polyvinyl Chloride), LSZH C Low Smoke Zero Halogen, or PE (polyethylene).

 In the process of fabricating the photoelectric composite cable provided in the first embodiment, the sealing sheath of the photoelectric composite cable can be peeled off, and then the embedded module is internally connected to the photoelectric composite cable. In order to improve the reliability of the continuous sealing, in the peeling off, in the adjacent two-layer sealing sheath, the layer farther from the center of the photoelectric composite cable can be peeled off more than one layer closer to the center of the photoelectric composite cable. The stripping method can make the peeling end surface of the photoelectric composite cable be a step surface, thereby increasing the joint area of the continuous sealing and finally improving the reliability of the continuous sealing. By the same token, the process of connecting the two-stage photoelectric composite cable can also adopt the above-mentioned stripping method to improve the reliability of the two-stage photoelectric composite cable. Of course, the above is only a more preferable mode, and the photoelectric composite cable can also be peeled off into a planar peeling end face during the subsequent sealing process.

 In order to further improve the reliability of the splicing and sealing of the electro-optical composite cable, in the optoelectric composite cable provided in the first embodiment, in the direction from the outside to the inside, the outer surface of the sealing sheath located on the second layer is provided for increasing the connection. The texture of the seal bond, such as thread texture, mesh texture, etc. Of course, the above-mentioned sealing sheath on the second layer can also be provided with other shapes of texture to increase the bonding force of the continuous sealing. The first embodiment does not limit the shape of the texture. More preferably, in the photoelectric composite cable provided in the first embodiment, in the direction from the outside to the inside, on the premise that the outer surface of the sealing sheath located on the second layer is textured, except for the outermost sealing The outer surface of the other sealed sheath other than the sheath may also be textured to further increase the bonding force of the electro-optic composite cable.

In the photoelectric composite cable provided in the first embodiment, the embedded module is electrically connected to the live wire 13 and the ground cable 11 to realize the electrical connection between the cable and the embedded module. The structure of the live wire 13 and the ground cable 11 may be the same, and may include a copper core wire 131 and an insulating sheath 132. The material of the insulating sheath 132 may be PVC material, LSZH material or PE material. The cable identification mark can be set on both the live wire 13 and the ground cable 11 in the first embodiment to avoid misconnection. For example, the live wire 13 and the ground cable 11 can be distinguished by different colors, the live wire 13 has a red outer skin, and the ground cable 11 has a black outer skin. The FireWire cable 13 and the ground cable 11 may also be distinguished by other identifiers such as text symbols. When the number of the optical cables 12 is multiple, each of the optical cables 12 may be provided with a cable identification mark for preventing misconnection, such as a color identification, a character identification (such as a number), and the like. In the first embodiment, the optical cable 12 includes a single-core tight-fitting optical fiber 121 and a single-core tight-fitting optical fiber sheath 123 coated on the single-core tight-fitting optical fiber 121, and may further include a single-core tight-fitting optical fiber 121 and a single-core tight A tensile reinforcement layer 122 is disposed between the fiber sheaths 123. According to industry internal standards, the thickness of the single-core tight-fitting optical fiber sheath 123 is usually 2 mm. A tight-fitting fiber is a type of fiber that is a common type of fiber that is formed by protecting a coated fiber. The tight-fitting optical fiber in the first embodiment is a single-core tight-fitting optical fiber 121. The tensile reinforcement layer 122 is used to enhance the tensile properties of the optoelectric composite cable, and the tensile reinforcement layer 122 may be an aramid yarn layer formed of aramid yarn or a glass yarn layer formed of glass yarn. Of course, the tensile reinforcement layer 122 can also be made of other kinds of materials. The first embodiment does not limit the material of the tensile reinforcement layer 122.

 In the first embodiment, at least one of the single-core tight-fitting optical fibers 121 serves as an external optical fiber for external connection. When the optoelectric composite cable provided in the first embodiment is fabricated, the external optical fiber is cut at any position to form a front end pigtail and a rear end pigtail. The front end pigtail is a length of fiber connected to the optical signal source. The rear pigtail is a length of fiber used to transmit optical signals. In the first embodiment, the front end pigtail is used to form a fiber joint connected to the embedded module. Specifically, there are various ways for the front end pigtail to form the fiber joint, which will be exemplarily described below in conjunction with several formation modes shown in Figs. 2-5.

 Referring to FIG. 2, FIG. 2 shows a structure of a photoelectric composite cable according to Embodiment 1 of the present invention, which adopts a bundle through-through application mode. The bundle through-through application mode is generally more suitable for a plurality of opto-electric composite cables of a single-core tight-set optical fiber 121. The mode is that an external optical fiber 110 is cut to form a front-end pigtail and a rear-end pigtail, wherein the front-end pigtail As the fiber connector is docked with the embedded module 19, the rear pigtail is not processed. Generally, the front end pigtail can be connected to the fiber optic connection flange 18 by a corresponding tool hot melt or cold connection operation, and then connected to the inline module 19 through the fiber connection flange 18, or the front end pigtail directly and the fiber reserved by the inline module 19. The pigtail is hot melted or cold-joined to achieve the connection. The front pigtail is connected to the embedded module 19 to form an optical signal path. This mode can also perform the same operation on different single-core tight-fitting fibers 121 at other locations of the opto-electric composite cable.

 Referring to FIG. 3, FIG. 3 shows a structure of a photoelectric composite cable according to Embodiment 1 of the present invention, which adopts a distributed branching application mode. The so-called distributed shunt application mode is generally more suitable for a single-core tight-set optical fiber 121 with a smaller number of opto-electric composite cables (for example, when the single-core tight-fitting optical fiber 121 is one, in this case, it is preferable to adopt a shunt distribution application mode) . The external fiber 111 in this mode is cut to form a front pigtail and a rear pigtail. The front end pigtail is a length of fiber connected to the optical signal source, and the rear end pigtail is a segment of the optical fiber used to transmit the optical signal.

In the distributed shunt application mode, the opto-electric composite cable provided in the first embodiment may further include an optical splitter 112 connected to the front end pigtail and dividing the front end pigtail into the main fiber 1122 and the branch optical fiber 1121. The optical fiber 1121 is connected as an optical fiber connector to the embedded module 19 to form an optical signal path, and the main fiber 1122 is connected to the rear pigtail to ensure that the optical path continues to be transmitted backward. The branch fiber 1121 and the embedded module 19 can be connected by connecting the fiber connection flange by hot melt or cold connection operation, and the branch fiber 1 121 can also reserve the fiber pigtail, and then pass the reserved fiber pigtail and the embedded module. 19 The reserved fiber pigtails are hot-melt or cold-wired for connection. In this mode, the same operation of the same external optical fiber 1 11 can be performed again at other locations of the optoelectric composite cable. In this case, the number of times the external optical fiber 11 1 can be externally connected to the embedded module 19 is related to the optical module receiving sensitivity and the docking loss of the embedded module 19.

 Referring to FIG. 4, FIG. 4 shows a structure of a cascading application mode of a split-module module for a photoelectric composite cable according to Embodiment 1 of the present invention. When the shunt module cascade application mode is adopted, the in-line module 19 of the opto-electric composite cable provided in the first embodiment has an optical splitter (not shown). Preferably, the optical splitter is a PLC optical splitter. The external fiber 113 is cut to form a front pigtail and a rear pigtail. The front pigtail is a length of fiber connected to the optical signal source, and the rear pigtail is a length of fiber used to transmit optical signals. In the cascaded application mode, the rear pigtail is connected to the output of the embedded module 19, and the front pigtail is divided into the optical splitter in the embedded module 19 by the optical splitter in the embedded module. Fiber connectors with other modules connected. The rear pigtail is connected to the output of the embedded module 19 to pass the optical signal to the next stage.

 Wherein, the front end pigtail can be connected to the fiber connecting flange 18 by hot melt or cold connection operation, and then connected to the input end of the embedded module 19 through the fiber connecting flange 18, or the fiber tail fiber is reserved for the front end pigtail, the front end pigtail The fiber pigtail is connected to the fiber pigtail reserved by the embedded module 19 for hot melt or cold operation. Similarly, the rear pigtail can be connected to the fiber connection flange 114 by a hot melt or cold junction operation, and then connected to the output end of the embedded module 19 through the fiber connection flange 114, or the fiber pigtail is reserved for the rear pigtail, the front end The pigtail fiber is connected to the fiber pigtail fiber reserved by the embedded module 19 by hot melt or cold operation.

 Referring to FIG. 5, FIG. 5 shows a structure of an electrical circuit connection of an optoelectric composite cable according to Embodiment 1 of the present invention. In the opto-electric composite cable shown in FIG. 5, the in-line module 19 has a live wire butt line 117 that interfaces with the live wire 13 and a ground wire 118 that interfaces with the ground wire 1 1 . The live wire 13 and the live wire are connected to the wire. 117 is connected by a docking device 115 (for example, a quick electrical plug), and the ground wire butt wire 118 and the ground cable 1 1 can also be connected by the docking device 116. Of course, in the optoelectric composite cable provided in the first embodiment, the cable can also be directly connected to the terminal of the embedded module 19 to form a power path.

In the process of producing the photoelectric composite cable disclosed in the first embodiment, the embedded module 19 is usually embedded in the interior of the photoelectric composite cable by means of peeling and re-embedding the plastic outer sheath, and the single core is not used for the external optical fiber. The sleeve of optical fibers 121 can pass through the periphery of the inline module 19. Preferably, the external size of the opto-electric composite cable embedded in the in-line module 19 does not exceed the outer dimensions of other portions not embedded in the in-line module 19 (ie, the outer wheel) The largest size of the profile). On the basis of the multi-layered plastic sheath, the stepped end surface which is peeled off is repaired and protected by injection molding, potting, bonding sleeve or protective casing, and the photoelectric composite cable with uniform outer diameter is reformed. . In order to ensure the overall appearance of the cable and the stability of the combination of the various parts, after forming the uniform outer diameter cable, the photoelectric composite cable is integrally sealed to form a new outermost sealing sheath. In the case where the number of the single-core tight-fitting optical fibers 121 is large, the other single-core tight-fitting optical fibers 121 may be used as the external optical fibers, and the embedded modules 19 may be embedded in different portions of the photoelectric composite cable.

 In another specific embodiment of the optoelectric composite cable provided in the first embodiment, the optoelectric composite cable may further include a water blocking portion. Referring again to FIG. 1, the water blocking portion may include a wrapping tape 16 wound around the cable bundle and a cable filling filler 17 filled between the wrapping tape 16 and the cable bundle, and the wrapping tape 16 is fixed. The function of the live wire 13, the ground cable 11 and the cable 12. The wrapping tape 16 can be made of a woven material having a high strength such as a nonwoven fabric or a glass fiber cloth. Filling the tape 16 between the wrapping tape 16 and the cable bundle before wrapping the wrapping tape 16 can provide a better waterproofing effect. The water blocking portion may further comprise a water blocking tape having a function of covering and fixing the cable bundle and providing a waterproof function instead of the wrapping tape 16 and the cable filling filler 17, and the material of the water blocking tape may be a self-expanding water absorbing resin. Organic fiber. In the process of embedding the inline module 19, the opto-electric composite cable provided by the embodiment can remove the water blocking tape in the embedding position or the wrapping tape 16 and the existing cable filling filler 17 in the embedding position.

 The photoelectric composite cable provided by the first embodiment of the present invention has an embedded module 19, and the embedded module 19 is respectively connected with the live wire 13 and the ground cable 11 to form an electrical path, and the embedded module 19 is connected with the external optical fiber to form an optical path. The built-in module 19 works normally. The method of embedding the external device does not need to consider the arrangement position and space of the external device. If adjustment is needed, it can be directly adjusted by adjusting the orientation, length and layout of the opto-electric composite cable, and the adjustment is flexible, and the adjustment is relatively easy. Therefore, the opto-electric composite cable provided in the first embodiment can make the network cabling system more adaptable to the construction site. Moreover, the embedded module 19 has been debugged before being embedded in the opto-electric composite cable. Therefore, the opto-electric composite cable provided in the first embodiment can shorten the time for installation and debugging of the network cabling system.

At the same time, the photoelectric composite cable provided in the first embodiment adopts a single-core tight-set optical fiber 121, and the operator can easily perform operations such as cutting, docking, splitting, etc. for the optical fibers of the same type, and is operated without other adjacent optical fibers or wires. The impact does not affect the transmission of other fibers, which in turn facilitates the processing of a single fiber. Moreover, the opto-electric composite cable of the first embodiment protects the cable bundle and the in-line module 19 by using at least two layers of the plastic sheath, and firstly, the multi-layer sealing sheath has better protection performance; The sleeve can be peeled into a step surface when the photoelectric composite cable is produced or the two-stage photoelectric composite cable is connected, and then the sealing treatment is performed, and the step surface can improve the bonding area of the continuous sealing, thereby improving the stability of the joint, and finally It avoids the large volume problem caused by the current use of jumper box connection cables, which can further facilitate wiring. Moreover, the multi-layered plastic sheath enables the optoelectronic composite cable to better maintain the cable form.

 In the photoelectric composite cable provided in the first embodiment, since the embedded module 19 is disposed inside the photoelectric composite cable in advance, the use of the cable can simplify the field work and make the construction on site simple. The embedded module 19 is a function module, which can be preset or selected according to the needs of the site. For example, it can be a function module integrating functions of transmission, broadcasting, sensing, acquisition, processing, and the like. This can make the opto-electric composite cable provided in the first embodiment become an integrated intelligent cable integrating multi-functionality, and solves the problem of the lack of functionality of the current opto-electric composite cable as a single transmission connection device.

 The photoelectric composite cable provided in the first embodiment integrates the cable and the embedded module into an integrated structure, and the integrated structure facilitates equipment management, and at the same time reduces the risk of damage existing in the external connection, and can improve the reliability and operability of the network wiring system. Moreover, the integrated structure makes the connection between the cable and the equipment module more compact, can reduce the connection line and the field connection operation, and further reduces the problems of high material cost and high construction cost in the current external connection mode.

 Further, the outer layer of the second layer of the plastic-clad sheath provided by the embodiment has a specific texture structure, which can further improve the reliability of the cable connection.

 Further, the opto-electric composite cable provided in this embodiment has a water blocking portion, so that the photoelectric composite cable has better waterproof performance.

 Embodiment 2

 Usually, during the wiring process in the field, the operator will apply a large pulling force when moving the opto-electric composite cable, and the pulling force will be applied to the inner cable through the sealing sheath, which will undoubtedly increase. The force of the internal cable of the large photoelectric composite cable damages the cable. In order to solve this problem, please refer to FIG. 6, FIG. 6 shows the structure of the photoelectric composite cable provided by the second embodiment of the present invention.

 The optoelectronic composite cable provided by the second embodiment of the present invention comprises a live wire cable 23, a ground cable 28, a fiber optic cable 22, an embedded module (not shown), a rib 21 and at least two layers of plastic sheath. Preferably, the sealing sheath is two layers, respectively an inner layer sealing sheath 25 and an outer sealing sheath 24 (shown in Figure 6). The inner layer sealing sheath 25 is covered on the cable bundle and the embedded module formed by the live wire 23, the ground cable 28 and the optical cable 22, and the outer sealing sheath 24 is wrapped around the inner sealing sheath. 25, and the two are detachably connected, that is, the outer sealing sheath 24 and the inner sealing sheath 25 can be peeled off from each other.

In order to improve the protective performance, the photoelectric composite cable provided in the second embodiment can be provided with more layers of the sealing sheath, and is not limited to the two layers shown in FIG. 6. When the number of the sealing sheath is more than two layers, in the adjacent two-layer sealing sheath, a layer of plastic sheath which is farther from the center of the photoelectric composite cable is coated at the center of the photoelectric composite cable. The first layer of the plastic sheath is detachably connected to realize the peeling of the sealing sheath when the photoelectric composite cable is continuously sealed. Typically, the sealed jacket can be made of PVC material, LSZH material or PE material.

 In the process of fabricating the photoelectric composite cable provided in the second embodiment, the sealing sheath of the photoelectric composite cable can be peeled off, and then the embedded module is internally connected to the photoelectric composite cable. In order to improve the reliability of the continuous sealing, in the peeling off, in the adjacent two-layer sealing sheath, the layer farther from the center of the photoelectric composite cable can be peeled off more than one layer closer to the center of the photoelectric composite cable. The stripping method can make the peeling end surface of the photoelectric composite cable be a step surface, thereby increasing the joint area of the continuous sealing and finally improving the reliability of the continuous sealing. By the same token, the process of connecting the two-stage photoelectric composite cable can also adopt the above-mentioned stripping method to improve the reliability of the two-stage photoelectric composite cable. Of course, the above is only a more preferable mode, and the photoelectric composite cable can also be peeled off into a planar peeling end face during the subsequent sealing process.

 In order to further improve the reliability of the splicing and sealing of the optoelectronic composite cable, in the optoelectric composite cable provided in the second embodiment, in the direction from the outside to the inside, the outer surface of the sealing sheath located on the second layer is provided for increasing the connection. The texture of the seal bond, such as thread texture, mesh texture, etc. The texture can further improve the reliability of the continuous sealing of the peeling portion of the photoelectric composite cable. Of course, the above-mentioned texture setting is also advantageous for the continuous sealing of the two-stage butted opto-electric composite cable. Of course, the sealing sheath of the second layer may also be provided with other shapes of texture to increase the bonding force during the subsequent sealing. This embodiment does not limit the shape of the texture. In a more preferred solution, in the photoelectric composite cable provided by the embodiment, in the direction from the outside to the inside, on the premise that the outer surface of the sealing sheath located on the second layer is textured, except for the outermost layer Other sealing sheaths other than the plastic sheath may also be textured to further increase the bonding force of the photovoltaic composite cable.

 In the opto-electric composite cable provided in the second embodiment, the embedded module is electrically connected to the live cable 23 and the ground cable 28, and the cable is interconnected with the embedded module to form a power path. The firewire cable 23 and the ground cable 28 may have the same structure, and may include a copper core wire 231 and an insulating sheath 232. The material of the insulating sheath 232 may be PVC material, LSZH material or PE material. Both the live wire 23 and the ground cable 28 in the second embodiment may be provided with a cable identification mark to avoid misconnection. For example, the live wire 23 and the ground cable 28 can be distinguished by different colors, the live wire 23 has a red outer skin, and the ground cable 28 has a black outer skin. The FireWire cable 23 and the ground cable 28 may also be distinguished by other symbols such as text symbols. When the number of the optical cables 22 is multiple, each of the optical cables 22 may be provided with a cable identification mark for preventing misconnection, such as a color identification, a character identification (such as a number), and the like.

In the second embodiment, the optical cable 22 includes a single-core tight-fitting optical fiber 221 and a single-core tight-fitting optical fiber sheath 223 coated on the single-core tight-fitting optical fiber 221, and may further include a single-core tight-fitting optical fiber 221 and a single-core tight Light Tensile reinforcement layer 222 between the outer skins 223. According to industry internal standards, the thickness of the single-core tight-fitting optical fiber sheath 223 is usually 2 mm. A tight-fitting fiber is a type of fiber that is a common type of fiber that is formed by protecting a coated fiber. The tight-fitting optical fiber in the second embodiment is a single-core tight-fitting optical fiber 221 . The tensile reinforcement layer 222 is used to improve the tensile properties of the optoelectric composite cable. The tensile reinforcing layer 222 may be a layer of aramid yarn formed of aramid yarn or a glass yarn layer formed of glass yarn. Of course, the tensile reinforcement layer 222 can also be made of other kinds of materials. The second embodiment does not limit the material of the tensile reinforcement layer 222.

 The reinforcing rib 21 is located at the center of the innermost sealing sheath, and the live wire 23, the ground cable 28 and the optical cable 22 can be layered or evenly distributed around the periphery of the reinforcing rib 21 to ensure uniformity of cable distribution and reduce Wiring stress. The reinforcing rib 21 in the second embodiment may include a reinforcing inner core 2011 and an insulating sheath 2012 wrapped around the reinforcing inner core 2011. The reinforcing inner core 2011 mainly serves as a tensile force, and the insulating sheath 2012 is used for blocking electricity. . The reinforced inner core 2011 in the second embodiment can be a single-core or multi-core steel wire, and can ensure the tensile strength while making the entire photoelectric composite cable have better flexibility. Of course, the rib 21 can also be a rib made of a non-metallic material.

 In the second embodiment, at least one of the single-core tight-fitting optical fibers 221 serves as an external optical fiber for external connection. When the optoelectric composite cable provided in the second embodiment is fabricated, the external optical fiber is cut at any position to form a front end pigtail and a rear end pigtail. The front end pigtail is a length of fiber connected to the optical signal source. The rear pigtail is a length of fiber used to transmit optical signals. The front pigtail is used to form a fiber optic connector that is connected to the inline module. Specifically, there are many ways in which the front end pigtail forms a fiber optic connector that is coupled to the inline module, and is exemplarily described below in connection with the manner of formation shown in Figures 7-10.

 Referring to FIG. 7, FIG. 7 shows a structure of a photoelectric composite cable according to Embodiment 2 of the present invention, which adopts a bundle through-through application mode. The bundle through-through application mode is generally more suitable for a plurality of opto-electric composite cables of a single-core tight-set optical fiber 221. In this mode, an external optical fiber 211 is cut to form a front end pigtail and a rear end pigtail. The front end pigtail is connected to the embedded module 210 as a fiber connector, and the rear pigtail is not processed. Generally, the front end pigtail can be connected to the fiber optic connection flange 29 by a corresponding tool hot melt or cold connection operation, and then connected to the embedded module 210 through the fiber connection flange 29, or the front end pigtail directly and the fiber reserved in the embedded module 210. The pigtail is hot melted or cold-joined to achieve the connection. The front pigtail and the embedded module 210 form an optical signal path. This mode can also perform the same operation on different single-core tight-fitting fibers 221 at other locations of the opto-electric composite cable.

Referring to FIG. 8, FIG. 8 shows a structure of a photoelectric composite cable according to Embodiment 2 of the present invention, which adopts a distributed branching application mode. The so-called distributed shunt application mode is generally more suitable for a single-core tight-set optical fiber 221 with a smaller number of opto-electric composite cables (for example, when the single-core tight-fitting optical fiber 221 is one), in this case, it is preferable to use a splitting sub-segment. Cloth application mode). The external fiber 212 in this mode is truncated to form a front pigtail and a rear pigtail. The front end pigtail is a length of fiber connected to the optical signal source, and the rear end pigtail is a length of fiber used to transmit the optical signal.

 In the split distribution application mode, the opto-electric composite cable provided in the second embodiment may further include an optical splitter 213 connected to the front end pigtail and dividing the front end pigtail into the main fiber 2132 and the branch fiber 2131. The optical fiber 2131 is connected as an optical fiber connector to the embedded module 210 to form an optical signal path. The main fiber 2132 is connected to the rear pigtail to ensure that the optical path continues to be transmitted backward. The branch fiber 2131 and the embedded module 210 can be connected to the fiber connecting flange by hot melt or cold connection operation, and the branch fiber 2131 can also reserve the fiber pigtail, and then pass the reserved fiber pigtail and the embedded module 210. The reserved fiber pigtails are connected by hot melt or cold connection. In this mode, the same operation can be performed on the same external optical fiber 211 again at other positions of the optoelectric composite cable. In this case, the number of times the external optical fiber 212 can be externally connected to the embedded module 210 is related to the optical module receiving sensitivity and the docking loss of the embedded module 210.

 Please refer to FIG. 9, FIG. 9 is a diagram showing the structure of the multiplexed application mode of the splitting module of the photoelectric composite cable provided by the second embodiment of the present invention. When the shunt module cascade application mode is adopted, the in-line module 210 of the opto-electric composite cable provided in the second embodiment has an optical splitter (not shown). Preferably, the optical splitter is a PLC optical splitter. The external fiber 214 is cut to form a front end pigtail and a rear end pigtail. The front end pigtail is a length of fiber connected to the optical signal source, and the rear end pigtail is a length of fiber used to pass the optical signal out. In the cascading application mode, the rear end pigtail is connected to the output end of the embedded module 210, and the front end pigtail is divided into the optical splitter in the embedded module 210 by the optical splitter in the embedded module 210. Fiber connectors connected to other modules. The rear pigtail is connected to the output of the embedded module 210 to pass the optical signal to the next stage.

 The front end pigtail may be connected to the fiber connecting flange 29 through a hot melt or cold joint operation, and then connected to the input end of the embedded module 210 through the fiber connecting flange 29, or the fiber tail fiber is reserved at the front end pigtail, and the front end pigtail passes through The fiber pigtail is connected to the fiber pigtail reserved by the embedded module 210 for hot melt or cold operation. Similarly, the rear pigtail can be connected to the fiber connection flange 215 by hot melt or cold connection, and then connected to the output end of the embedded module 210 through the fiber connection flange 215, or the fiber pigtail is reserved for the front end pigtail, front end The fiber is connected to the fiber pigtail reserved by the embedded module 210 by hot-melt or cold operation through the fiber pigtail.

Referring to FIG. 10, FIG. 10 shows a structure of an electrical path of a photoelectric composite cable provided by Embodiment 2 of the present invention. In the optoelectric composite cable shown in FIG. 10, the in-line module 210 has a live wire butt wire 218 that interfaces with the live wire 23 and a ground wire 219 that interfaces with the ground cable 28, and the live wire 23 and the live wire 218 Connected by docking device 216 (such as a quick electrical plug), ground wire butt wire 219 and The ground cable 28 is also connected by a docking device 217. Of course, in the optoelectric composite cable provided in the second embodiment, the cable can also be directly connected to the terminal of the embedded module 210.

 In the process of producing the photoelectric composite cable disclosed in the second embodiment, the embedded module 29 is usually embedded in the interior of the photoelectric composite cable by means of peeling and re-embedding the outer sheath, and the reinforcing ribs are not used for the external optical fiber. The single-core tight-fitting optical fiber 221 can pass through the periphery of the in-line module 210, and if necessary, the reinforcing rib 21 of the embedded portion of the opto-electric composite cable can be cut and removed to increase the installation space of the in-line module 210. Preferably, the outer size of the opto-electric composite cable embedded in the in-line module 210 does not exceed the outer dimensions of the other portions of the in-line module 210 (ie, the largest dimension of the outer contour). On the basis of the multi-layered plastic sheath, the stepped end surface which is peeled off is repaired and protected by injection molding, potting, bonding sleeve or protective casing, and the photoelectric composite cable with uniform outer diameter is reformed. . In order to ensure the overall appearance of the cable and the stability of the combination of the various parts, the photoelectric composite cable is integrally sealed to form a new outermost sealing sheath after forming a uniform outer diameter cable. In the case where the number of single-core tight-fitting optical fibers 221 is large, other single-core tight-fitting optical fibers 221 may be used as external optical fibers, and the embedded modules 210 may be embedded in different portions of the optical composite cable.

 In another specific embodiment of the optoelectric composite cable provided in the second embodiment, the optoelectric composite cable may further include a water blocking portion. Referring again to FIG. 6, the water blocking portion may include a wrapping tape 26 wound around the cable bundle and a cable filling filler 27 filled between the wrapping tape 26 and the cable bundle, and secured around the wrapping tape 26. The function of the live wire 23, the ground cable 28, and the cable 22. The wrapping tape 26 can be made of a woven material having a high strength such as a nonwoven fabric or a glass fiber cloth. The cable filling 27 is filled between the wrapping tape 26 and the cable bundle before winding the wrapping tape 26 to complete the waterproofing effect. The water blocking portion may further comprise a water blocking tape having a function of covering and fixing the cable bundle and providing a waterproof function instead of the wrapping tape 26 and the cable filling filler 27. The material of the water blocking tape may be a self-expanding water absorbing resin. Organic fiber. In the process of embedding the in-line module 210, the opto-electric composite cable provided by the embodiment can remove the water blocking tape in the embedded position or the wrapping tape 26 and the existing cable filling filler 27 in the embedded position.

The optoelectronic composite cable provided by the second embodiment of the present invention has an embedded module 210, and the embedded module 210 is respectively connected with the live wire 23 and the ground cable 28 to form an electrical path, and the embedded module 210 is connected with the external optical fiber to form an optical path. The normal operation of the embedded module 210. The method of embedding the external device does not need to consider the arrangement position and space of the external device. If adjustment is needed, it can be directly adjusted by adjusting the direction, length, layout, etc. of the photoelectric composite cable, and the adjustment is flexible, and the adjustment is relatively easy. Therefore, the optoelectric composite cable provided in the second embodiment can make the network cabling system more adaptable to the construction site. Moreover, the embedded module 210 has been debugged before embedding the opto-electric composite cable, which can reduce the time for installation and debugging of the network cabling system. At the same time, the photoelectric composite cable provided in the second embodiment adopts a single-core tight-set optical fiber 221, and the operator can easily perform operations such as cutting, docking, splitting, etc. for the optical fibers of the same type, and is operated without other adjacent optical fibers or wires. The impact does not affect the transmission of other fibers, which in turn facilitates the processing of a single fiber. Moreover, the opto-electric composite cable of the first embodiment protects the cable bundle and the embedded module 210 by using at least two layers of plastic sheath. First, the multi-layer sealing sheath has better protection performance; The sleeve can be peeled into a step surface when the photoelectric composite cable is produced or the two-stage photoelectric composite cable is connected, and then the sealing treatment is performed, and the step surface can improve the bonding area of the continuous sealing, thereby improving the stability of the joint, and finally avoiding the current The large volume problem caused by using a jumper box to connect cables can further facilitate wiring. Moreover, the multi-layered plastic sheath enables the optoelectronic composite cable to better maintain the cable form.

 In the photoelectric composite cable provided in the second embodiment, since the embedded module 210 is disposed inside the photoelectric composite cable in advance, the use of the cable can simplify the field work and make the construction on site simple. The embedded module 210 is a function module, which can be preset or selected according to the needs of the site, for example, a function module integrating functions of transmission, broadcasting, sensing, acquisition, processing, and the like. This can make the opto-electric composite cable provided in the second embodiment become an integrated intelligent cable integrating multiple functions, and solves the problem that the current photoelectric composite cable only serves as a single transmission connection device.

 The optoelectronic composite cable provided in the second embodiment integrates the cable and the embedded module into an integrated structure, and the integrated structure facilitates equipment management, and at the same time reduces the risk of damage existing in the external connection, and can improve the reliability and operability of the network wiring system. Moreover, the integrated structure makes the connection between the cable and the equipment module more compact, can reduce the connection line and the field connection operation, and further reduces the problems of high material cost and high construction cost in the current external connection mode.

 Further, the outer layer of the second layer of the plastic-clad sheath provided by the embodiment has a specific texture structure, which can further improve the reliability of the cable connection.

 Further, the opto-electric composite cable provided in this embodiment has a water blocking portion, so that the photoelectric composite cable has better waterproof performance.

 On the basis of the above-mentioned beneficial effects, the opto-electric composite cable provided in the second embodiment has the reinforcing rib 21 added, which can improve the tensile performance of the entire photoelectric composite cable.

 Embodiment 3

When the number of optical cables is small (for example, one), the reinforcing ribs disposed at the center of the optoelectric composite cable are insufficient to fill the gaps in the optoelectric composite cable, which affects the mechanical properties of the optoelectric composite cable and easily causes stress concentration. In order to solve this problem, please refer to FIG. 11. FIG. 11 is a schematic structural diagram of an optoelectric composite cable according to Embodiment 3 of the present invention. The photoelectric composite cable provided in the third embodiment includes a live wire 33, a ground cable 38, a fiber optic cable 32, an embedded module, at least two layers of plastic sheaths, and a plurality of reinforcing ropes located in the innermost layer of the plastic sheath. 31. Preferably, the sealing sheath shown in FIG. 11 is two layers, which are an inner layer sealing sheath 35 and an outer layer sealing sheath 34, respectively. Wherein, the inner layer sealing sheath 35 is wrapped on the cable bundle formed by the embedded module (not shown) and the live wire 33, the ground cable 38, and the optical cable 32, and the outer sealing sheath 34 Covered on the inner layer sealing sheath 35, the outer layer sealing sheath 34 and the inner layer sealing sheath 35 are detachably connected, that is, the two can be peeled off.

 In order to improve the protective performance, the photoelectric composite cable provided in the third embodiment can be provided with more layers of the plastic protective sheath, and is not limited to the two layers shown in FIG. When the number of the sealing sheath is more than two, in the adjacent two-layer sealing sheath, a layer of plastic sheath farther from the center of the photoelectric composite cable is coated near the center of the photoelectric composite cable. The first layer of the plastic sheath is attached, and the two are detachably connected to realize the peeling of the sealing sheath when the photoelectric composite cable is continuously sealed. Typically, the molded jacket can be made of PVC, LSZH or PE.

 In the process of fabricating the photoelectric composite cable provided in the third embodiment, the sealing sheath of the photoelectric composite cable can be peeled off, and then the embedded module is internally connected to the photoelectric composite cable. In order to improve the reliability of the continuous sealing, in the peeling off, in the adjacent two-layer sealing sheath, the layer farther from the center of the photoelectric composite cable can be peeled off more than one layer closer to the center of the photoelectric composite cable. The stripping method can make the peeling end surface of the photoelectric composite cable be a step surface, thereby increasing the bonding area of the continuous sealing, and finally improving the reliability of the continuous sealing. By the same token, the process of connecting the two sections of the optoelectronic composite cable can also adopt the above-mentioned stripping method to improve the reliability of the two-stage optoelectronic composite cable. Of course, the above is only a more preferable manner, and in the process of continuous sealing, the photoelectric composite cable can also be peeled off into a planar peeling end surface.

 In order to further improve the reliability of the splicing and sealing of the optoelectronic composite cable, in the optoelectronic composite cable provided in the third embodiment, in the direction from the outside to the inside, the outer surface of the sealing sheath located on the second layer is provided for increasing the connection. The texture of the seal bond, such as thread texture, mesh texture, etc. Of course, the above-mentioned sealing sheath on the second layer can also be provided with other shapes of texture to increase the bonding force of the continuous sealing. The third embodiment does not limit the shape of the texture. In a more preferred solution, in the photoelectric composite cable provided in the third embodiment, in the direction from the outside to the inside, on the premise that the outer surface of the sealing sheath on the second layer is textured, except for the outermost layer The outer surface of the other sealed sheath other than the sealed sheath may also be textured to further increase the bonding force of the electro-optic composite cable.

In the opto-electric composite cable provided in the third embodiment, the embedded module is electrically connected to the live cable 33 and the ground cable 38, and the cable is interconnected with the embedded module to form an electrical path. The structure of the live wire 33 and the ground cable 38 may be the same, and may include a copper core wire 331 and an insulating sheath 332, and the material of the insulating sheath 332 The material can be PVC material, LSZH material or PE material. Both the live wire 33 and the ground cable 38 in the third embodiment may be provided with a cable identification mark to avoid misconnection. The live wire 33 and the ground cable 38 can be distinguished by different colors, for example, the live wire 33 has a red outer skin and the ground cable 38 has a black outer skin. The FireWire cable 33 and the ground cable 38 may also be distinguished by other symbols such as text symbols. Meanwhile, when the number of the optical cables 32 is multiple, each of the optical cables 32 may be provided with a cable identification mark for preventing misconnection, such as a color identification, a character identification (such as a number), and the like.

 In the third embodiment, the optical cable 32 includes a single-core tight-fitting optical fiber 321 and a single-core tight-fitting optical fiber sheath 323 coated on the single-core tight-fitting optical fiber 321 , and may further include a single-core tight-fitting optical fiber 321 and a single-core tight The tensile reinforcing layer 322 between the outer sheaths 323 of the optical fiber, according to industry internal standards, generally has a thickness of 2 mm for the single-core tight-fitting optical fiber sheath 323. The tight-fitting optical fiber is a type of optical fiber, and is a commonly used optical fiber type formed by protecting the coated optical fiber. The tight-fitting optical fiber in the third embodiment is a single-core tight-fitting optical fiber 321 . The tensile reinforcement layer 322 is used to enhance the tensile properties of the optoelectric composite cable, and the tensile reinforcement layer 322 may be an aramid yarn layer formed of aramid yarn or a glass yarn layer formed of glass yarn. Of course, the tensile reinforcing layer 322 can also be made of other kinds of materials, and the third embodiment does not limit the material of the tensile reinforcing layer 322.

 A plurality of reinforcing cords 31 are located in the innermost sealing sheath, and the reinforcing cords 31 can be discretely distributed on the live wires.

33. The gap between the ground cable 38 and the cable 32 forms a gap between the cable bundles, and enhances the tensile performance of the optical composite cable, and can better fill the gap formed in the photoelectric composite cable due to less cable 32. Avoid the problem of poor mechanical properties and stress concentration caused by the large internal voids in the opto-electric composite cable. The reinforcing cord 31 of the third embodiment can be made of a material such as a polyester tape, a tin foil tape, aramid yarn, or a glass fiber yarn.

 In the third embodiment, at least one of the single-core tight-fitting optical fibers 321 is used for an external external optical fiber. When the optoelectric composite cable provided in the third embodiment is fabricated, the external optical fiber is cut at any position to form a front end pigtail and a rear end pigtail. The front end pigtail is a length of fiber connected to the optical signal source. The rear pigtail is a length of fiber used to transmit optical signals. In the third embodiment, the front end pigtail is used to form a fiber joint connected to the embedded module. Specifically, there are various ways for the front end pigtail to form the fiber joint, which will be exemplarily described below in combination with several formation modes shown in Figs. 12-15.

Referring to FIG. 12, FIG. 12 shows a structure of a photoelectric composite cable according to Embodiment 3 of the present invention, which adopts a bundle through-through application mode. The bundle through-through application mode is generally more suitable for an opto-electric composite cable having a larger number of single-core tight-set optical fibers 321 . In this mode, an external optical fiber 39 is cut to form a front-end pigtail and a rear-end pigtail. The front end pigtail is connected to the embedded module 310 as a fiber connector, and the rear end fiber is not processed. Generally, the front end pigtail can be connected to the fiber optic connection flange 31 1 by a corresponding tool hot melt or cold connection operation, and then connected to the inlay module 310 through the fiber connection flange 31 1 , or the front end pigtail directly and the embedded module 310 The reserved fiber pigtails are connected by hot melt or cold connection. The front pigtail and the embedded module 310 form an optical signal path. This mode can also perform the same operation on different single-core tight-fitting fibers 321 at other positions of the opto-electric composite cable.

 Please refer to FIG. 13, FIG. 13 is a diagram showing the structure of the photoelectric composite cable provided by the third embodiment of the present invention in a distributed branch application mode. The so-called distributed shunt application mode is generally more suitable for a single-core tight-set optical fiber 321 with a smaller number of opto-electric composite cables (for example, when the single-core tight-fitting optical fiber 321 is one, in this case, it is better to use the shunt distribution application mode) . The external fiber 312 in this mode is truncated to form a front pigtail and a rear pigtail. The front end pigtail is a length of fiber connected to the optical signal source, and the rear end pigtail is a segment of the optical fiber used to transmit the optical signal.

 In the split distribution application mode, the opto-electric composite cable provided in the third embodiment may further include an optical splitter 313 connected to the front end pigtail and dividing the front end pigtail into the main fiber 3132 and the branch optical fiber 3131. The optical fiber 3131 is connected as an optical fiber connector to the embedded module 310 to form an optical signal path. The main fiber 3132 is connected to the rear pigtail to ensure that the optical path continues to be transmitted backward. The branch fiber 3131 and the embedded module 310 can be connected to the fiber connecting flange by hot melt or cold connection operation, and the branch fiber 3131 can also reserve the fiber pigtail, and then pass the reserved fiber pigtail and the embedded module 310. The reserved fiber pigtails are connected by hot melt or cold connection. In this mode, the same operation of the same external optical fiber 312 can be performed again at other locations of the optoelectric composite cable. In this case, the number of times the external fiber 312 can be externally connected to the embedded module 310 is related to the receiving sensitivity and the docking loss of the optical module of the embedded module 310.

 Referring to Figure 14, Figure 14 is a diagram showing the structure of a split-module cascade application mode of an opto-electric composite cable according to a third embodiment of the present invention. In the split module cascading application mode, the in-line module 310 of the opto-electric composite cable provided in the third embodiment has an optical splitter (not shown). Preferably, the optical splitter is a PLC optical splitter. The external fiber 314 is cut to form a front end pigtail and a rear end pigtail. The front end pigtail is a length of fiber connected to the optical signal source, and the rear end pigtail is a length of fiber used to pass the optical signal out. In the cascading application mode of the splitting module, the rear end pigtail is connected to the output end of the embedded module 310, and the front end pigtail is divided into the optical splitter in the embedded module 310 by the optical splitter in the embedded module 310. Fiber connectors with other modules connected. The rear pigtail is connected to the output of the embedded module 310 to pass the optical signal to the next stage.

The front end pigtail may be connected to the fiber connection flange 311 by a hot melt or cold connection operation, and then connected to the input end of the embedded module 310 through the fiber connection flange 311, or the fiber tail fiber is reserved at the front end pigtail, and the front end pigtail passes through The fiber pigtail fiber is connected to the fiber pigtail fiber reserved by the embedded module 310 for hot melt or cold junction operation. Similarly, the rear pigtail can be connected to the fiber connection flange 315 by a hot melt or cold connection operation, and then connected to the output end of the embedded module 310 through the fiber connection flange 315, or the fiber pigtail is reserved for the front end pigtail. The front end pigtail is connected to the fiber pigtail reserved by the embedded module 310 by hot-melt or cold operation.

 Referring to Figure 15, Figure 15 is a diagram showing the structure of an electrical circuit connection of an opto-electric composite cable according to a third embodiment of the present invention. In the optoelectric composite cable shown in FIG. 15, the in-line module 310 has a live wire butt wire 318 that interfaces with the live wire 33 and a ground wire 319 that interfaces with the ground cable 38. The live wire 33 and the live wire 318 The ground wire butt wire 319 and the ground wire 38 are also connected by a docking device 317 by a docking device 316 (e.g., a quick electrical plug). Of course, in the optoelectric composite cable provided in the third embodiment, the cable can also be directly connected to the terminal of the embedded module 310.

 In the process of producing the photoelectric composite cable disclosed in the third embodiment, the embedded module 310 is usually embedded in the interior of the photoelectric composite cable by means of peeling and re-embedding the outer sheath, and the reinforcing cord 31 and the external optical fiber are not used. The single-core tight-fitting optical fiber 321 can pass through the periphery of the embedded module 310, and if necessary, the reinforcing cord 31 of the embedded portion of the optoelectric composite cable can be cut and removed to increase the installation space of the embedded module 310. Preferably, the outer dimensions of the opto-electric composite cable embedded in the in-line module 310 do not exceed the outer dimensions of the other portions of the in-line module 310 (i.e., the largest dimension of the outer contour). On the basis of the multi-layered plastic sheath, the stepped end surface which is peeled off is repaired and protected by injection molding, potting, bonding sleeve or protective casing, and the photoelectric composite cable with uniform outer diameter is reformed. . In order to ensure the overall appearance of the cable and the stability of the joints of the various parts, after forming the uniform outer diameter cable, the photoelectric composite cable is integrally sealed to form a new outermost sealing sheath. In the case where the number of single-core tight-fitting optical fibers 321 is large, other single-core tight-fitting optical fibers 321 may be used as external optical fibers, and the embedded modules 310 may be embedded in different portions of the optical composite cable.

 In another specific embodiment of the optoelectric composite cable provided in the third embodiment, the optoelectric composite cable may further include a water blocking portion. Referring again to FIG. 1, the water blocking portion may include a wrapping tape 36 wound around the cable bundle and a cable filling filler 37 filled between the wrapping tape 36 and the cable bundle, which is wound around the wrapping tape 36. The function of the live wire cable 33, the ground wire 38, and the cable 32 is fixed. The wrapping tape 36 can be made of a woven material having a high strength such as a nonwoven fabric or a glass fiber cloth. The cable filler 37 is filled between the wrapping tape 36 and the cable bundle before the winding of the wrapping tape 36 is completed, which can provide better waterproofing. The water blocking portion may further comprise a water blocking tape having a function of covering and fixing the cable bundle and providing a waterproof function instead of the wrapping tape 36 and the cable filling material 37. The material of the water blocking tape may be a self-expanding water absorbing resin. Organic fiber. In the process of embedding the in-line module 310, the opto-electric composite cable provided in this embodiment can remove the water blocking tape in the embedded position or the wrapping tape 36 and the existing cable filling filler 37 in the embedded position.

The optoelectronic composite cable provided by the third embodiment of the present invention has an embedded module 310, and the embedded module 310 is respectively connected with the live cable 33 and the ground cable 38 to form an electrical path, and the embedded module 310 is connected to the external optical fiber. Forming the light path enables normal operation of the inline module 310. The method of embedding the external device does not need to consider the arrangement position and space of the external device. If adjustment is needed, it can be directly adjusted by adjusting the direction, length, layout, etc. of the photoelectric composite cable, and the adjustment is flexible, and the adjustment is relatively easy. Therefore, the optoelectric composite cable provided in the third embodiment can make the network cabling system more adaptable to the construction site. Moreover, the embedded module 310 has been debugged before being embedded in the opto-electric composite cable, which can reduce the time for installation and debugging of the network cabling system.

 At the same time, the photoelectric composite cable provided in the third embodiment adopts a single-core tight-set optical fiber 321 , and the operator can easily perform operations such as cutting, docking, and splitting on the optical fibers of the other types, and is not operated by other adjacent optical fibers or wires. The impact does not affect the transmission of other fibers, which in turn facilitates the processing of a single fiber. Moreover, the opto-electric composite cable of the first embodiment protects the cable bundle and the embedded module 310 by using at least two layers of the plastic sheath, and firstly, the multi-layer sealing sheath has better protection performance; The sleeve can be peeled into a step surface when the photoelectric composite cable is produced or the two-stage photoelectric composite cable is connected, and then the sealing treatment is performed, and the step surface can improve the bonding area of the continuous sealing, thereby improving the stability of the joint, and finally avoiding the current The large volume problem caused by using a jumper box to connect cables can further facilitate wiring. Moreover, the multi-layered plastic sheath enables the optoelectronic composite cable to better maintain the cable form.

 In the photoelectric composite cable provided in the third embodiment, since the embedded module 310 is disposed inside the photoelectric composite cable in advance, the use of the cable can simplify the field work and make the construction on site simple. The embedded module 310 is a function module, which can be preset or selected according to the needs of the site. For example, it can be a function module integrating functions of transmission, broadcasting, sensing, acquisition, processing, and the like. This can make the opto-electric composite cable provided in the third embodiment become an integrated intelligent cable integrating multiple functions, and solves the problem of the lack of functionality of the current opto-electric composite cable as a single transmission connection device.

 The photoelectric composite cable provided in the third embodiment integrates the cable and the embedded module into an integrated structure, and the integrated structure facilitates equipment management, and at the same time reduces the risk of damage existing in the external connection, and can improve the reliability and operability of the network wiring system. Moreover, the integrated structure makes the connection between the cable and the equipment module more compact, can reduce the connection line and the field connection operation, and further reduces the problems of high material cost and high construction cost in the current external connection mode.

 Further, the outer layer of the second layer of the plastic-clad sheath provided by the embodiment has a specific texture structure, which can further improve the reliability of the cable connection.

 Further, the opto-electric composite cable provided in this embodiment has a water blocking portion, so that the photoelectric composite cable has better waterproof performance.

And on the basis of achieving the above beneficial effects, the photoelectric composite cable provided by the embodiment increases The reinforcing cord 31 can improve the tensile performance of the entire photoelectric composite cable, and can also fill the gap formed in the interior of the photoelectric composite cable due to the small number of optical cables, thereby finally improving the mechanical properties of the optical composite cable and avoiding stress concentration.

 It should be noted that, in the first embodiment to the third embodiment, the single-core tight-fitting optical fiber can be set according to the environment, and a single-core tight-set optical fiber having a diameter of 0.9 mm is usually used.

 In the photoelectric composite cable provided in the first embodiment to the third embodiment, in at least two layers of the plastic sheath, the hardness of each layer of the plastic sheath may be different, and the entire photoelectric composite cable has a certain flexibility. Maximize the ability of the opto-electric composite cable to maintain cable form.

 The first embodiment-the third embodiment is only a specific embodiment of the present invention. The different embodiments may be combined in any way to form a new embodiment, and the embodiments are all in the present invention. Within the scope of the examples disclosed.

 The embodiments of the present invention described above are not intended to limit the scope of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and scope of the invention are intended to be included within the scope of the invention.

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Claims

Rights request

1. Optoelectronic composite cable, which is characterized by:

Live wire cables, ground wire cables, optical cables and embedded modules. The optical cables include a single-core tight-buffered optical fiber and a single-core tight-buffered optical fiber sheath covering the single-core tight-buffered optical fiber. The single-core tight-buffered optical fiber is At least one of the optical fibers is an external optical fiber for external connection. The external optical fiber is cut off at any position of the optoelectronic composite cable to form a front-end pigtail and a back-end pigtail. The front-end pigtail is used to form a connection with the inner cable. Fiber optic connectors for embedded module connections; and

At least two layers of plastic sheath covering the cable bundle formed by the live wire cable, the ground wire cable and the optical cable and the embedded module, the embedded module and the live wire cable and the ground wire cable Electrical connection.

2. The optoelectronic composite cable according to claim 1, characterized in that the front-end pigtail serves as the optical fiber connector and is connected to the embedded module to form an optical path.

3. The optoelectronic composite cable according to claim 1, characterized in that, the optoelectronic composite cable further includes an optical fiber connected to the front-end pigtail, and the front-end pigtail is divided into a main optical fiber and a branch optical fiber. Splitter, the branch optical fiber is connected to the embedded module as the optical fiber connector, and the main optical fiber is connected to the back-end pigtail to form an optical path.

4. The optoelectronic composite cable according to claim 1, characterized in that: there is an optical splitter in the embedded module, the rear end fiber pigtail is connected to the output end of the embedded module, and the front end tail fiber The optical fiber is divided into optical fiber connectors connected to other modules in the embedded module except the optical splitter through the optical splitter.

5. The optoelectronic composite cable according to claim 1, wherein the embedded module has a live wire butt wire connected to the live wire cable and a ground wire butt wire connected to the ground wire cable, so The live wire cable and the live wire butt wire, and the ground wire cable and the ground wire butt wire are all connected through a butt connection device.

6. The optoelectronic composite cable according to any one of claims 1 to 5, characterized in that, in the direction from outside to inside, the outer surface of the plastic sheath located on the second layer is provided with a The texture of the sealing bond.

7. The optoelectronic composite cable according to any one of claims 1 to 5, characterized in that, the optoelectronic composite cable further includes a reinforcing rib arranged at the center of the innermost plastic sheath, and the live wire cable, Ground cables and optical cables are twisted or evenly distributed around the reinforcing rib. The reinforcing rib includes a reinforcing inner core and an insulating sheath covering the reinforcing inner core.

8. The optoelectronic composite cable according to any one of claims 1 to 5, characterized in that the optoelectronic composite cable further includes a plurality of reinforcing ropes, and the plurality of reinforcing ropes are discretely distributed on the cable bundle. The gap.

9. The optoelectronic composite cable according to any one of claims 1 to 5, characterized in that the stripped end surface of the optoelectronic composite cable is a stepped surface.

10. The optoelectronic composite cable according to any one of claims 1 to 5, characterized in that, the optoelectronic composite cable further includes a wrapping tape wrapped around the cable bundle and a wrapping tape filled in the wrapping tape. Cable paste filler between the cable bundle and the cable bundle;

Alternatively, the optoelectronic composite cable further includes a water-blocking tape wrapped around the cable bundle.