KR102604855B1 - Optical And Power Composite Cable And Optical And Power Composite Jumper Cord - Google Patents

Abstract

The present invention relates to a photoelectric composite cable having a circular cross-section, improved workability, simple construction, and sufficient durability, and a photoelectric composite jumper cord including the same.

Description

Photoelectric composite cable and photoelectric composite jumper cord comprising the same {Optical And Power Composite Cable And Optical And Power Composite Jumper Cord}

The present invention relates to a photoelectric composite cable and a photoelectric composite jumper cord including the same. More specifically, the present invention relates to a photoelectric composite cable having a circular cross-section, improved workability, simple construction, and sufficient durability, and a photoelectric composite jumper cord including the same.

Recently, in addition to power for indoor operation, the number of facilities that must be provided with optical lines to perform large-capacity communication functions has been increasing. For example, CCTV or small cell base stations.

Recently, the spread of CCTV has expanded for reasons such as security or unmanned security, and the image quality has also improved significantly. CCTV must be continuously supplied with power, and the captured video is transmitted to the DVR in the security room. Due to improved picture quality, the amount of data transmitted is also large. Recently, CCTV images are often transmitted remotely from places other than the security room in the building, and faster data transmission is required accordingly.

In addition, due to the increased use of data communication by residents in buildings, the installation of small cell base stations is expanding to ensure smooth data communication and minimize communication shadow areas. This small cell type base station can be operated together with a large base station. A small cell base station provides a stable wireless network environment in a relatively small space and acts as a single base station. Generally, it is installed at the border between base stations, indoors, etc., and if dual connection between the base station and small cell is possible in the terminal, it can have a great effect in improving transmission speed in urban areas.

In this way, for smooth operation of high-definition CCTV or small cell base stations, the provision of power and high-capacity communication lines is commonly required.

Therefore, installation of optical cables as power cables and communication lines is necessary. Recently, in order to respond to this environment, technology has been introduced to provide power and optical communication through a single optoelectronic composite cable.

In the case of conventionally introduced photoelectric composite cables, the diameter of the photoelectric composite cable was large, so there was no advantage of cable unification, and also, when connecting optical cables with a relatively small diameter compared to the power cable by branching at the end of the cable, a separate cable was required to protect the optical fiber. There was a problem that the configuration was complicated and workability was poor because it was connected to an optical connector, etc. with reinforcement treatment or reinforcement members applied.

The present invention aims to solve the problem of providing a photoelectric composite cable that has a circular cross-section, improved workability, simple structure, and sufficient durability, and a photoelectric composite jumper cord including the same.

In order to solve the above problems, the present invention A pair of power units that include a conductor and an insulating layer surrounding the conductor and circumscribe each other; an optical unit arranged to circumscribe together with a pair of the power units; at least one intervening unit circumscribed together with the pair of the power units and disposed in a position symmetrical to the optical unit; A core portion including a tensile reinforcement disposed around the power unit, the optical unit, and the intervening unit; And, a cable jacket surrounding the outside of the core portion; A photoelectric composite cable including a can be provided.

Additionally, the tensile reinforcement of the core portion may be aramid yarn provided in the empty space between the power unit, the intervening unit, and the optical unit.

Additionally, a binding tape surrounding the core portion may be further provided between the core portion and the cable jacket.

Additionally, the optical unit and the intervening unit have corresponding diameters, and the diameter of the power unit may be larger than the diameters of the optical unit and the intervening unit.

In addition, the optical unit may include at least one optical fiber, a tight buffer layer coated on the optical fiber, an optical unit reinforcement material provided to surround the outside of the tight buffer layer, and an optical unit jacket provided outside the optical unit reinforcement material.

Here, the optical fiber of the optical unit may be a single-mode single-core optical fiber.

In this case, the optical unit reinforcing material provided to surround the outside of the tight buffer layer may be aramid yarn.

In addition, the optical unit jacket surrounding the optical unit reinforcement material is LSZH or PVC, and the diameter of the optical unit may be 0.7 millimeters (mm) to 3.0 millimeters (mm).

Additionally, the intervening unit is made of polyethylene (PE) material, and its diameter may be 0.7 millimeters (mm) to 3.0 millimeters (mm).

And, the pair of conductors of the power unit is either a solid wire or a stranded copper wire, and its diameter may be 25 AWG to 10 AWG.

Here, the insulating layers of the pair of power units are made of PVC materials of different colors, the thickness of the insulating layers is 0.3 millimeters (mm) to 1.5 millimeters (mm), and the outer diameter of the power units is 1.0 millimeters (mm). ) to 5.5 millimeters (mm).

In this case, the cable jacket and tensile reinforcement material may be removed from at least one of both end areas of the photovoltaic composite cable in a predetermined section for a connecting operation, and the optical unit and the power unit may be branched to different lengths.

In addition, in order to solve the above problem, the present invention includes the above-described photoelectric composite cable; an optical connector mounted on an end of an optical unit branched from at least one of both end areas of the optoelectronic composite cable; a power connector fastened together to the ends of a pair of power units in the end area; A heat-shrinkable tube mounted on a branch area of the end area may be provided.

Additionally, the lengths of the power unit and the optical unit branched from the end region may be different from each other.

Here, the length of the optical unit branched from the end region may be longer than the length of the power unit.

In this case, the optical unit connected to the optical connector may be optically connected to the optical fiber constituting the optical unit while inserted into the boot of the optical connector.

The photoelectric composite cable according to the present invention optimizes the size and arrangement of the units, making it easy to configure the cross-section of the entire cable into a circle while minimizing the diameter of the entire cable, and improving shape retention against bending or twisting.

In addition, the optical unit constituting the photoelectric composite cable according to the present invention is equipped with its own reinforcement material and jacket, so that separate reinforcement processing or reinforcement structure can be omitted even when branching the optical unit for connection or connection, so that the photoelectric composite jumper It can simplify the composition of the code and improve the workability of connecting or connection work.

Figure 1 shows a cross-sectional view of a photovoltaic composite cable according to the present invention.
Figure 2 shows a side view of an optoelectronic composite jumper cord according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the embodiments introduced herein are provided so that the disclosed content will be thorough and complete, and so that the spirit of the present invention can be sufficiently conveyed to those skilled in the art. Like reference numerals refer to like elements throughout the specification.

Figure 1 shows a cross-sectional view of an optoelectronic composite cable 100 according to the present invention.

A pair of power units (10) including a conductor (11) and an insulating layer (13) surrounding the conductor (11) and externally circumscribing each other; an optical unit (30) arranged to circumscribe together with a pair of the power units (10); At least one intervening unit (50) circumscribed together with the pair of power units (10) and disposed in a position symmetrical to the optical unit (30); A core portion (c) including a tensile reinforcement material (60) disposed around the power unit (10), the optical unit (30), and the intervening unit (50); And, a cable jacket 80 surrounding the outside of the core portion (c); It may be configured to include.

The optoelectric composite cable 100 for supporting both power supply and data communication may be configured to include a power unit 10 for power supply and an optical unit 30 for optical communication.

Generally, the diameter d2 of the power unit 10 for power supply is larger than the diameter d3 of the optical unit 30 including the optical fiber 31.

Therefore, in order to minimize the overall diameter of the photoelectric composite cable 100 and configure the photoelectric composite cable 100 in a circular shape, a pair of power units 10 can be arranged to circumscribe each other.

In addition, when the power supplied through the photovoltaic composite cable 100 according to the present invention is direct current power, a pair of power units is provided and can be configured to be identified by the polarity of the power units.

The conductor 11 of the pair of power units 10 is either a solid copper wire or a stranded copper wire, and its diameter d1 may be 25 AWG to 10 AWG, and the insulation of the pair of power units 10 The layer 13 is made of PVC material of different colors, the thickness of the insulating layer 13 is 0.3 millimeters (mm) to 1.5 millimeters (mm), and the outer diameter (d2) of the power unit 10 is 1.0 millimeters. (mm) to 5.5 millimeters (mm).

Additionally, an optical unit 30 and an intervening unit 50 may be provided on both sides of the pair of mutually circumscribed power units 10 .

The optical unit 30 may be provided with at least one optical fiber 31 to enable high-capacity communication.

The optical unit 30 includes at least one optical fiber 31, a tight buffer layer 33 coated on the optical fiber 31, an optical unit reinforcement material 35 provided to surround the outside of the tight buffer layer 33, and the optical It may be configured to include an optical unit jacket 37 provided on the outside of the unit reinforcement material 35.

The optical fiber 31 of the optical unit 30 may be a single-mode single-core optical fiber 31.

In the case of a general optoelectric composite cable 100, a tight buffer type or loose tube type optical unit 30 is applied.

The loose tube type optical unit 30 is mainly applied when a plurality of optical fibers 31 are provided for high-capacity communication, and in the case of a single-core optical fiber 31 as in the present invention, a tight buffer layer 33 (tight buffer coating layer) ) A tight buffer type optical unit 30 equipped with ) may be applied.

The optical unit 30 in which a buffer layer is formed on the optical fiber 31 with a polymer material such as PVC is called a tight buffer type optical unit 30. In general, the tight buffer optical unit 30 can be manufactured by forming a coating layer on the surface of the optical fiber core and the cladding surrounding the core using an ultraviolet curing coating method, and forming a tight buffer layer on the outside of the coating layer. there is.

In the case of the tight buffer type optical unit 30 equipped with a single-core optical fiber 31, the diameter d3 is small, so when branching at the end for connecting processing, a separate optical unit 30 is installed to prevent bending. Reinforcement treatment is required.

However, the optical unit 30 of the present invention further includes an optical unit reinforcing material 35 provided to surround the outside of the tight buffer layer 33 and an optical unit jacket 37 provided outside the optical unit reinforcing material 35. Therefore, the optical unit 30 itself can be converted into an optical cable, so that even if it is branched, it can be provided in a structure that does not require separate reinforcement processing.

That is, when the power unit 10 and the optical unit 30 are each branched at the end of the photoelectric composite cable 100 for device connection or connection, the optical unit 30 has its own optical unit reinforcement 35 and There is no need to apply a separate reinforcement process due to the optical unit jacket 37.

The optical unit reinforcement material 35 provided to surround the outside of the tight buffer layer 33 may be made of aramid yarn like the tensile reinforcement material 60 to fill the empty space between the optical unit 30 and the power unit 10. there is.

The optical unit jacket 37 surrounding the optical unit reinforcement 35 may be either LSZH or PVC in consideration of flame retardant properties and eco-friendliness, and the diameter (d3) of the optical unit 30 is 0.7 millimeter (mm). It may consist of from 3.0 millimeters (mm).

Additionally, an intervening unit 50 having a diameter corresponding to that of the optical unit 30 may be provided at a position symmetrical to the optical unit 30 .

The intervening unit 50 may be provided to configure the photoelectric composite cable 100 in an overall circular shape and to reinforce tensile force. When the intervening unit 50 is omitted, even if the power unit and the optical unit are circumscribed to each other, the cross-sectional shape is arranged in a flat triangular shape, making it difficult to configure the cable in a circular shape. However, by placing an intervening unit with a diameter corresponding to the optical unit in the opposite direction, it can serve as a frame for forming the cross-sectional shape of the photoelectric composite cable into a circle.

The intervening unit 50 is made of polyethylene (PE), a relatively flexible material, and its diameter is 0.7 millimeters (mm) to 3.0 millimeters (mm) to correspond to the diameter d3 of the optical unit 30. mm) range.

Therefore, the intervening unit 50 buffers the shock applied to the power unit 10 or the optical unit 30 constituting the core portion (c) due to an external shock, etc., while also changing the overall cable shape to a circular shape. It is possible to maintain and reinforce the longitudinal tensile force of the cable together with the tensile reinforcement material 60.

The optical unit 30 and the intervening unit 50 may be circumscribed together to a pair of the power units 10 and may be disposed at symmetrical positions.

As shown in FIG. 1, a pair of power units 10 are circumscribed, and the optical unit 30 and the intervening unit 50 are respectively disposed circumscribed in the pair of power units 10, The power unit 10, the optical unit 30, and the intervening unit 50 may be arranged in a cross shape.

In this case, the diameter of the optical unit 30 and the intervening unit 50 is smaller than the diameter of the power unit 10, making it easy to configure a circular cable.

Tensile reinforcement 60 may be provided around the power unit 10, the optical unit 30, and the intervening unit 50, which are arranged to circumscribe each other.

The tensile reinforcement material 60 fills the empty space between the power unit 10, the optical unit 30, and the intervening unit 50 to reinforce the tensile force of the photoelectric composite cable 100 and the core portion (c). The cross section can be configured as a circle.

The tensile reinforcement 60 is made of a material such as aramid yarn and fills the empty space between the power unit 10, the optical unit 30, and the intervening unit 50, which have a circular cross-section. While the cross-sectional shape of the entire core portion (c) is close to circular, it is possible to provide both tensile force and flexibility.

A binding tape may be provided on the outside of the core portion (c) to which the tensile reinforcement material 60 is added. The binding tape 70 is interposed between the tension reinforcement 60 of the core part (c) and the cable jacket 80, and the tension reinforcement 60 is formed so that the cross-section of the core part (c) is circular. It can serve as a wrapping material. The binding tape 70 may be a non-woven tape.

A cable jacket 80 may be further provided outside the binding tape. The cable jacket 80 is made of flame-retardant PVC, PE, or LSZH material and can stably protect the core portion (c) while providing sufficient durability and flame retardancy.

The thickness of the cable jacket 80 may be 0.6 millimeters (mm) to 1.5 millimeters (mm), and the diameter (D) of the photoelectric composite cable 100 is 3.2 millimeters (mm) depending on the diameter of the power unit 10. ) to 14.0 millimeters (mm), making it possible to provide power and a high-speed optical communication network with a single optoelectronic composite cable while minimizing the cable diameter.

Figure 2 shows a side view of the optoelectric composite jumper cord 1 according to the present invention.

The photoelectric composite jumper cord 1 shown in FIG. 2 is a connection means for simultaneously providing power supply and high-capacity optical communication between two devices by applying the photoelectric composite cable 100 shown in FIG. 1.

The photoelectric composite jumper cord 1 shown in FIG. 2 includes the photoelectric composite cable 100 described with reference to FIG. 1 ; an optical connector 130 mounted on an end of the optical unit 30 branched from at least one of both end areas of the optoelectric composite cable 100; A power connector 110 fastened together to the ends of a pair of power units 10 in the end area; It may be configured to include a heat shrinkable tube 150 mounted on a branch area of the end area.

The photoelectric composite jumper cord 1 according to the present invention shown in FIG. 2 is shown as being configured by connecting both ends of the photoelectric composite cable 100, but if necessary, one end of the photoelectric composite cable 100 is connected. It may be configured as a jumper code.

Since the photoelectric composite connector constituting the photoelectric composite jumper cord 1 is mainly provided indoors to connect a computer room or communication room with an individual space, the photoelectric composite cable 100 constituting the photoelectric composite jumper cord 1 is It can be configured to have a length (a) of as short as a few meters (m) and as long as hundreds of meters (m).

Since the power supplied through the photoelectric composite jumper cord 1 according to the present invention may be direct current power, a pair of power units 10 can be connected through one power connector.

The power connector is a pair of female connectors and male connectors, and may be a connector that can transmit power when coupled to each other and has a locking function to fix the coupled state.

And, as described above, the optical unit 30 constituting the optoelectronic composite jumper cord 1 according to the present invention includes an optical fiber 31, a tight buffer layer 33 coated on the optical fiber 31, and the tight buffer layer ( 33) It is provided with an optical unit reinforcing material 35 provided to surround the outside, and an optical unit jacket 37 provided on the outside of the optical unit reinforcing material 35. Accordingly, the optical unit 30 branched from the end region of the optoelectric composite cable 100 can be introduced to the rear of the boot 131 of the optical connector and optically connected without additional reinforcement processing. If the optical unit 30 is finished with only a tight buffer coating layer, reinforcement treatment by adding a separate protective layer to prevent bending of the optical fiber 31 at the end area of the photovoltaic composite cable 100 is required, but the optical unit of the present invention The unit 30 is equipped with an optical unit reinforcement material 35 and an optical unit jacket 37, so that it can be connected to the optical connector without performing additional work on the branched optical unit 30, so the photoelectric composite jumper cord (1) ) can improve the efficiency of the manufacturing process or field connection work.

As shown in FIG. 2, the left end area and the right end area of the photoelectric composite cable 100 are branched into an optical unit 30 and a power unit 10 for connection, respectively. In the right end area, the optical unit 30 and the power unit 10 are branched near the connected device or are introduced into the connected device and then branched to connect to the power connector (optical connector) or power terminal (optical terminal) of the connected device. can be connected.

However, if the positions or connection directions of the power connector (optical connector) or power terminal (optical terminal) of the connected device are different, the branch length of the optical unit 30 and the power unit 10 in the end area of the photoelectric composite cable 100 is It may be configured differently.

And, as shown in the embodiment of FIG. 2, the branch length (e) of the optical unit 30 in the left end area of the photovoltaic composite cable 100 is longer than the branch length (c) of the power unit 10. It can be long.

In the case of the optical unit 30, unlike the power unit 10, excessive bending, etc. must be prevented to protect the optical fiber 31, so the connector connection direction may be restricted in the connected device, etc., so sufficient length must be secured to connect within the connected device. It needs to be placed in a detour direction. On the other hand, in the case of the power unit, it is composed of the conductor 11 and the insulating layer 13 and can be relatively free from bending or bending compared to the optical unit 30, so the branch length may be relatively short.

Therefore, the branch lengths of the optical unit 30 and the power unit 10 branched from the end region of the photoelectric composite jumper cord 1 according to the present invention may be different from each other, and in this case, the branch length of the optical unit 30 is It may be configured to be longer than the branch length of the power unit 10.

In addition, the branch area of the end area of the photoelectric composite cable 100 is equipped with a heat shrink tube to prevent the bending of the optical unit 30 and the power unit 10 and the tearing of the cable jacket 80 of the photoelectric composite cable 100. It can be prevented.

As such, according to the photoelectric composite cable and the photoelectric composite jumper cord including the same according to the present invention, the size and arrangement of the units constituting the photoelectric composite cable are optimized to minimize the diameter of the entire cable and make the cross-section of the entire cable circular. It makes it easy to construct, improves shape retention against bending or twisting, and provides its own reinforcing material and jacket to the optical units that make up the photoelectric composite cable of the present invention to branch the optical units for connection or connection. Since separate reinforcement processing or reinforcement structures can be omitted, the configuration of the photoelectric composite jumper cord can be simplified and the workability of connecting or connection work can be improved.

Although this specification has been described with reference to preferred embodiments of the present invention, those skilled in the art may make various modifications and changes to the present invention without departing from the spirit and scope of the present invention as set forth in the claims described below. It will be possible to implement it. Therefore, if the modified implementation basically includes the elements of the claims of the present invention, it should be considered to be included in the technical scope of the present invention.

1: Photoelectric composite jumper cord
100: Optoelectric composite cable
10: Power unit
30: optical unit
50: Intervening unit

Claims (16)

In photoelectric composite cables for power and high-speed communication,
A pair of power units that include a conductor and an insulating layer surrounding the conductor and circumscribe each other;
It consists of a single-mode optical fiber, a tight buffer layer coated on the optical fiber, an optical unit reinforcement material containing aramid yarn surrounding the outside of the tight buffer layer, and an optical unit jacket made of LSZH or flame-retardant PVC material provided on the outside of the optical unit reinforcement material, one pair. one optical unit arranged to be circumscribed together with the power unit of;
One intervening unit circumscribed together with the pair of said power units;
A core portion including a tensile reinforcement disposed between the power unit, the optical unit, and the intervening unit; and,
A cable jacket surrounding the outside of the core portion and having a thickness of 0.6 millimeters (mm) to 1.5 millimeters (mm); Including,
The intervening unit is disposed in a position symmetrical to the optical unit with the pair of power units interposed therebetween and has a diameter corresponding to that of the optical unit,
Each of the power units has a larger diameter than the optical unit and the intervening unit, and the diameter (D) of the photovoltaic composite cable 100 is 3.2 millimeters (mm) to 14.0 millimeters (mm). . According to paragraph 1,
An opto-electric composite cable, characterized in that the tensile reinforcement of the core portion is an aramid yarn provided in the empty space between the power unit, the intervening unit, and the optical unit. According to paragraph 1,
An opto-electric composite cable, characterized in that a binding tape surrounding the core portion of the core portion is further provided between the core portion and the cable jacket. delete delete delete delete According to paragraph 1,
An optoelectric composite cable, characterized in that the diameter of the optical unit is 0.7 millimeters (mm) to 3.0 millimeters (mm). According to paragraph 1,
The intervening unit is made of polyethylene (PE) material, and has a diameter of 0.7 millimeters (mm) to 3.0 millimeters (mm). According to paragraph 1,
A photoelectric composite cable, characterized in that the conductor of the pair of power units is either a solid or stranded copper wire, and its diameter is 25 AWG to 10 AWG. According to clause 10,
The insulating layer of the pair of power units is made of PVC materials of different colors, the thickness of the insulating layer is 0.3 millimeters (mm) to 1.5 millimeters (mm), and the outer diameter of the power units is 1.0 millimeters (mm) to 1.5 millimeters (mm). A photoelectric composite cable characterized in that it is 5.5 millimeters (mm). According to paragraph 1,
At least one end area of both end areas of the photovoltaic composite cable is characterized in that the cable jacket and tensile reinforcement are removed at a predetermined section for connecting work, and the optical unit and the power unit are branched to different lengths. cable. The photoelectric composite cable of any one of claims 1 to 3 and 8 to 12;
an optical connector mounted on an end of the optical unit that is branched and exposed from at least one of both end areas of the optoelectric composite cable;
a power connector fastened together to the ends of a pair of power units in the end area;
A heat-shrinkable tube mounted on a branch area of the end area. An opto-electric composite jumper cord comprising a. According to clause 13,
An opto-electric composite jumper cord, characterized in that the lengths of the power unit and the optical unit branched from the end region are different from each other. According to clause 14,
An opto-electric composite jumper cord, characterized in that the length of the optical unit branched from the end region is longer than the length of the power unit. According to clause 13,
An opto-electric composite jumper cord, characterized in that the optical fiber constituting the optical unit and the optical connector are optically connected while the optical unit connected to the optical connector is inserted into the boot of the optical connector.

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