WO2021246679A1

WO2021246679A1 - Field-assembly optical fiber branch kit, multi-core optical fiber cord protection unit, and branch kit including same

Info

Publication number: WO2021246679A1
Application number: PCT/KR2021/006067
Authority: WO
Inventors: 전건익; 강필순; 박찬설
Original assignee: 유씨엘 주식회사
Priority date: 2020-06-04
Filing date: 2021-05-14
Publication date: 2021-12-09

Abstract

The present invention relates to a field-assembly optical fiber branch kit and, more specifically, provides a field-assembly optical fiber branch kit that receives a large amount of data through a single multi-core field-assembly optical connector and enables the received data to be branched and provided to multiple places of use through multiple single-core field-assembly optical connectors, and relates to a multi-core optical fiber cord protection unit and a branch kit including same, wherein a field-assembly multi-core optical fiber cord protection unit that can protect a multi-core optical fiber fusion connection part is provided, and simultaneously, a factory pre-assembled optical fiber branch assembly and multi-core connection optical connector kit is provided as a single kit so that construction time on site can be reduced.

Description

Field-assembled fiber optic shunt kit and multi-core fiber optic cord protection unit and shunt kit including the same

The present invention is a field-assembled fiber optic branch kit that can be assembled and installed by variously adjusting the length according to field conditions, using a portable optical fiber branch kit, and a factory-assembled optical fiber branch assembly and multi-core connection type optical connector kit. A multi-core fiber optic cord protection unit and branch kit including the same for fast construction by fusion splicing with multi-core optical fiber in the field, and protecting the fusion spliced area through a multi-core optical fiber cord protection unit that is assembled and used in the field is about

In the modern information society, the role of communication networks occupies a very important part. In particular, as network communication such as the Internet has developed and a large amount of data such as voice or video is transmitted, an increase in information throughput and processing speed is required. The expansion of the communication network is urgently required.

In order to satisfy this demand, an optical cable is used instead of the existing coaxial cable as a way to process large-capacity information at high speed, and the use of optical cables is rapidly increasing.

Optical communication refers to communication in which a light signal is exchanged through an optical fiber composed of a core of inner glass with a high refractive index and a cladding of outer glass with a low refractive index. The optical fiber used for optical communication is difficult to eavesdrop because there is no interference or crosstalk by external electromagnetic waves, is strong in bending due to its small size and light weight, and can accommodate many communication lines in one optical fiber, so it is strong against changes in the external environment. Have. An optical cable is made by bundling these optical fibers into a cable, and a large amount of information can be exchanged simultaneously through the optical cable.

The multi-channel optical connector is a multi-fiber push-on (MPO) connector at both ends. It consists of an MPO patch cord consisting of 12 optical fibers in one connector and a hybrid patch cord of an individual connector type in which the other end is divided for each channel. include

However, if the multi-channel optical connector in the form of a finished product is used in the past, if the total length of the optical cable and connector installation site, such as a data center, is longer than the total length of the finished optical connector transported to the site, the installation itself I couldn't do it, so I had to retrieve the installed one and reinstall it with another one,

If the total length of the optical connector assembly of the finished product is shorter than the installation length on site, a storage device for storing the finished product had to be installed because the woman's dress remains.

Accordingly, the operator prepares an optical cable of a longer length overall than the previously known installation length of the site, but eventually uses a portion of the woman's clothing that does not need to be used, so there is a problem in that the installation cost is increased.

[Prior art literature]

[Patent Literature]

Republic of Korea Patent Publication No. 10-1895043 (Registered on August 29, 2018)

The present invention has been devised to solve the above problems, and an object of the present invention is to install an optical cable in various fields such as a data center, a ribbon type multi-core optical connector, a single-core type on-site assembly optical connector, single-core and multi-core optical connectors As the fan-out plug assembly for interconnection is provided in a single branch kit in an assembled form, the problem that occurred when using a pre-assembled optical connector product (the installation length in the field may be longer or shorter) In this case, the operator can assemble and use the optical cable and connector accurately and easily according to the installation distance of the optical cable on the site directly from the field, so that the optical connector that was transported cannot be used due to the short distance, or the length is too long The purpose of this is to provide a field-assembled fiber optic junction kit that eliminates the problem of wasted residual cables by cutting and using the correct length after installing the optical cable in the field without the need for crossdressing.

In addition, another object of the present invention is that the optical fiber branch assembly and the multi-core splice type optical connector kit are pre-manufactured and supplied at the factory, and only the field-assembled multi-core optical fiber cord protection unit that can protect the multi-core optical fiber fusion splicing unit is provided in the field. An object of the present invention is to provide a multi-core fiber optic cord protection unit and a branch kit including the same, which can be assembled to protect the fusion spliced part.

Other objects and advantages of the present invention will be set forth below and will be learned by way of example of the present invention. Further, the objects and advantages of the present invention may be realized by means and combinations indicated in the claims.

The present invention is a means for solving the above problems,

As a first embodiment of the field-assembled fiber optic branch kit,

A lower case 20 having a detachable cover 10 and having a protruding surface 21 protruding upward to be spaced apart from the ground thereon;

a first mounting portion 30 formed in a depression in the protruding surface 21 and into which a ribbon-type multi-core type on-site assembly optical connector 60 is mounted and inserted;

a second mounting portion 40 which is recessed in the protruding surface 21 and into which components capable of assembling the single-core type on-site assembly optical connector 70 are individually mounted and inserted;

Doedoe recessed in a ring shape in the protruding surface 21, the multi-core type field-assembled optical connector 60 and single-core type field-assembled optical connector 70 are connected at both ends, respectively, and the volume of optical cables and equipment for mass data transmission A fan-out plug assembly 80 that is delivered to a single multi-core type field-assembled optical connector 60 while reducing a third mounting unit 50; consists of,

It is carried and assembled on-site at the site where optical cable installation is required, and the length of the fan-out plug assembly 80 is cut as much as the installation length required for optical cable installation at the site, and the multi-core type on-site assembly optical at both ends of the fan-out plug assembly 80 By fusing and using the connector 60 and the single-core field-assembled optical connector 70, respectively, when using an existing pre-assembled product, the installation length and the optical cable length are different from the on-site optical cable, which makes installation impossible or impossible. It is characterized in that the problem of remaining excess of does not occur.

As a second embodiment of the field-assembled fiber optic branch kit,

A lower case 20 having a removable cover, and forming a protruding surface 21 protruding upward to be spaced apart from the ground;

Auxiliary kit 31 in which the components for assembling the multi-core optical connector 60 are stored, which is recessed in the protruding surface 21, and the ribbon-type multi-core optical connector 60 is mounted and inserted. ) a first mounting part 30 to which it is mounted;

a second mounting portion 40 recessed in the protruding surface 21 and into which components capable of assembling the single-core type on-site optical connector 70 are individually or mutually assembled and inserted;

It is carried and assembled on-site at the site requiring optical cable installation. The length of the optical cable is cut as much as the installation length required for optical cable installation at the site, and the multi-core type field-assembled optical connector 60 is fused and assembled at one end, and the fan-out plug is at the other end. After assembling the assembly 80, the single-core type on-site assembly optical connector 70 is fused and assembled and used. When using a pre-assembled finished product, the installation length on site and the length of the optical cable are different, so installation is impossible or used. It is characterized in that the problem of remaining excess of this impossible optical cable does not occur.

As an embodiment of a multi-core fiber optic cord protection unit and a branch kit including the same,

The fusion sleeve 110 is covered with the fusion part of the multi-core optical fiber (F) that is fusion spliced in the form of a flat ribbon after the outer skin is peeled off, and is used to protect the fusion part;

A fitting space 121 in which the fusion sleeve 110 can be mounted correspondingly is formed therein, and it is composed of upper and

lower covers

30 and 20 and is fastened and fixed in a state in which they are separated from each other, and multi-core fused on both sides. a main cover 140 through which the optical fiber F is exposed to the outside;

a side cover 150 that is fastened and fixed to both sides of the main cover 140 and installed to extend, and allows the multi-core optical fiber F to pass therethrough in the longitudinal direction;

a screw cap assembly 160 that is screwed to both sides of the side cover 150 after aligning the outer skin of the Kevlar and the optical cable on the outside of the side cover 150; It is characterized in that it is assembled and used in the field to protect the fusion part.

As described above, the present invention can carry an optical cable and a connector for assembly and installation in the field, and has the effect that it can be installed accurately and easily according to the installation distance of the field.

In addition, the present invention has an effect that, when the installation distance of the site and the overall length of the finished product to be used are different, the problem of generating residual cables that cannot be installed or that cannot be used and discarded does not occur at all.

In addition, the present invention has an effect that it is easy to carry, transport and transport, and it is easy to grasp the remaining number of internal components and contents through a transparent material.

In addition, the present invention provides a multi-core optical fiber by fusion splicing a pre-assembled fiber optic branch assembly and a multi-core splice type optical connector kit in the field to a multi-core optical fiber, and by assembling a multi-core optical fiber cord protection unit in the field for the fusion spliced area. It has the effect of enabling quick construction of fusion splicing and protection of fusion splicing parts.

In addition, according to the present invention, a multi-core optical fiber cord protection unit, an optical fiber branch assembly, and a multi-core connection type optical connector kit are configured as a single branch kit, so that it is easy to carry and easy to transport and transport.

1 is a view of an embodiment showing a field-assembled optical fiber branch kit according to the present invention.

2 is a view of an embodiment showing a fan-out plug assembly and a fan-out cover according to the present invention;

3 and 4 are perspective photos of an embodiment showing a single-core type on-site assembly optical connector according to the present invention.

5 is a perspective view of FIG. 1 ;

6 is a view of an embodiment showing the case of the field-assembled optical fiber branch kit according to the present invention.

7 is a view of an embodiment showing a state in which each part is mounted on the case of FIG.

8 is a view of an embodiment showing a package unit according to the present invention.

9 is a view of an embodiment showing a fan-out plug assembly and a fan-out cover according to the present invention;

10 and 11 are perspective photos of an embodiment showing a single-core type on-site assembly optical connector according to the present invention.

12 is a view of an embodiment showing a unit for protecting a multi-core optical fiber cord according to the present invention.

13 is an exploded perspective view of FIG. 12 ;

Fig. 14 is a cross-sectional view of Fig. 12;

15 and 16 are assembly views of a multi-core optical fiber cord protection unit according to the present invention.

17 is a block diagram showing a branch kit including a multi-core optical fiber cord protection unit according to the present invention.

18 is a view showing a first embodiment of a branch kit including a multi-core optical fiber cord protection unit according to the present invention.

19 is a view showing a second embodiment of a branch kit including a multi-core optical fiber cord protection unit according to the present invention.

10: cover 20: lower case

21: protruding surface 30: first mounting portion

31: auxiliary kit 40: second mounting part

41: first groove 42: second groove

32: third groove 44: fourth groove

45: fifth groove 50: third mounting part

51: sixth groove 52: seventh groove

60: multi-core type field assembly optical connector 61: cord wire

70: single core type field assembly optical connector 71: single core type subassembly

72: frame 73: screw cap

74: boot 75: protection tube

76: screw cap sub-assembly

81: plug 82: cord

83: fan-out cover 84: sleeve

85: optical fiber

110: fusion sleeve 120: bottom cover

121: fitting space 122: fitting piece

123: support piece 124: fixed groove

125: jamming groove 130: top cover

131: insertion part 132: catch piece

140: main cover 150: side cover

151: rotation fastening part 152: extension part

153: fastening ring 160: screw cap assembly

161: screw cap 162: boot

163: protection tube 170: multi-core fiber optic cord protection unit

200: optical fiber branch assembly 300: multi-core splice type optical connector kit

310: multi-core optical connector 400: branch kit

500: cord line

410: space

F: multi-core fiber

Before describing various embodiments of the present invention in detail, it will be understood that the application is not limited to the details of the construction and arrangement of components described in the following detailed description or shown in the drawings. The invention is capable of being embodied and practiced in other embodiments and of being carried out in various ways. Also, device or element orientation (eg, “front”, “back”, “up”, “down”, “top”, “bottom”) The expressions and predicates used herein with respect to terms such as ", "left," "right," "lateral," etc. are used merely to simplify the description of the invention, and the associated apparatus Or it will be appreciated that it does not simply indicate or imply that an element must have a particular orientation. Also, terms such as “first” and “second” are used in this application and the appended claims for the purpose of description and are not intended to indicate or imply relative importance or spirit.

In order to achieve the above object, the present invention has the following features.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, the terms or words used in the present specification and claims should not be construed as being limited to conventional or dictionary meanings, and the inventor should properly understand the concept of the term in order to best describe his invention. Based on the principle that it can be defined, it should be interpreted as meaning and concept consistent with the technical idea of the present invention.

Accordingly, the embodiments described in this specification and the configurations shown in the drawings are only the most preferred embodiment of the present invention and do not represent all the technical spirit of the present invention, so at the time of the present application, various It should be understood that there may be equivalents and variations.

Hereinafter, a field-assembled optical fiber branch kit, a multi-core optical fiber cord protection unit, and a branch kit including the same according to a preferred embodiment of the present invention will be described in detail with reference to FIGS. 1 to 19 .

Field-assembled optical fiber branch kit according to the present invention

As a first embodiment, as shown in FIGS. 1 to 5 , it includes a lower case 20 , a first mounting part 30 , a second mounting part 40 , and a third mounting part 50 .

The lower case 20 is a case in which the protruding surface 21 protruding upward to be spaced apart from the ground is formed thereon, and the first, second, and third mounting

parts

30 , 40 , 50 to be described later are attached to the protruding surface 21 . By forming a depression in the pole, the various components necessary for the installation of optical cables and optical connectors can be divided into compartments and stored and mounted.

Of course, a detachable cover 10 is provided on the upper portion of the lower case 20 , and the cover 10 corresponds to the protruding surface 21 so as to form a space in which the protruding surface 21 corresponds and is fitted. It has a '┎┑' cross section.

The lower case 20 and the cover 10 are formed of a transparent material, so that the internal components can be directly identified from the outside, but this is a part that can be changed according to various embodiments of the user.

The first mounting portion 30 is recessed to the bottom surface of the protruding surface 21 of the lower case 20 described above, a ribbon-type multi-core type on-site assembly optical connector 60 (MPO (Multi Path Push On Connector), Multi-channel optical connector) is installed and inserted.

The first mounting part 30 is to be equipped with a multi-core type on-site assembly optical connector 60, to be precise, an auxiliary kit 31 in which components for assembling the multi-core type on-site assembly optical connector 60 are stored. make it possible

The second mounting portion 40 is recessed in the protruding surface 21, so that components capable of assembling the single-core field-assembled optical connector 70 (LC, Lucent Connector) are individually mounted and inserted.

The second mounting portion 40 allows a plurality of components (assembly products) for assembling the single-core type on-site assembly optical connector 70 to be stored separately, and the first, second, third, fourth, and

fifth grooves

41 , 42, 43, 44, 45) to form a depression on the upper and lower edge of the protruding surface 21.

The first groove 41 is a plurality of single-centre sub-assemblies 71 (Housing Ass'y) are mounted, so that the plurality of grooves are dug out in the longitudinal direction to form a horizontal. In this single-core subassembly 71, the optical fiber is protected by a protective film on one end and protrudes, and the other end is mounted with a separate protective cap on, and when used, the protective film is partially removed, and the protective cap is removed to be used. .

The second groove 42 is a portion in which the frame 72 fastened to one end of the single-centre subassembly 71 is stored, and the third groove 43 is fastened correspondingly to one end of the frame 72 . The screw cap 73 (Screw Cap) is stored, and the fourth groove 44 corresponds to one end of the screw cap 73 and is a part in which the fitted boot 74 (Boot) is stored. The fifth groove 45 is a protective tube 75 ( Protection tube) is stored. That is, as the frame 72, the screw cap 73, the boot 74, and the protection tube 75 are continuously fastened to one end of the single-core subassembly 71 and assembled, a single single-core type on-site assembly optical connector ( 70) will be

Of course, since there are a plurality of single-core sub-assemblies 71, the frame 72, the screw cap 73, the boot 74, and the protective tube 75 must also be a plurality, and the optical fiber strand (ex: 12) , 24, etc.) should be kept.

The third mounting part 50 is recessed in the form of a ring on the protruding surface 21, and by connecting the multi-core type field-assembled optical connector 60 and the single-core type field-assembled optical connector 70 at both ends, respectively, a large amount of data is stored. While reducing the installation volume of the device and optical cable for transmission, it is delivered as a single multi-core type field-assembled optical connector (60), and a single-core type field-assembled optical connector (70) is used to branch and connect to a number of places of use. It is a part to which the out plug assembly 80 (Fanout Plug Ass'y) is mounted. In the fan-out plug assembly 80, a plurality of holes are formed to individually connect a plurality of cords 82 to one end of a cord 82 made of a plurality of wires, which is an optical cable line, and a plurality of holes are formed. It is composed of a part of the plug 81 that binds the cord 82 integrally.

In addition, the third mounting part 50 is recessed to the ground in a ring shape as described above, so that the fan-out plug assembly 80 is stored in a wound state, but the first mounting part 30 is the third The mounting portion 50 may be disposed so that it is partially overlapped with the upper portion and is recessed to a relatively lower depth than the third mounting portion 50 .

In addition, the present invention further includes a sixth groove 51 and a seventh groove 52 for storing components for protecting the connection portion between the multi-core type optical connector 60 and the fan-out plug assembly 80 .

The sixth groove 51 corresponds to the plug 81 of the fan-out plug assembly 80 so that the cord line 61 of the multi-core type optical connector 60 described above can be inserted into the plurality of grooves. It is a groove in which a plurality of sleeves 83 fitted to each of the cord lines 61 are stored.

The seventh groove 52 is a groove in which the components of the fan-out cover 83 for protecting the connection part between the multi-core type optical connector 60 and the plug 81 of the fan-out plug assembly 80 are stored, In the present invention, the seventh groove 52 is formed in the protruding surface 21 formed in the center of the third mounting part 50 recessed in a ring shape, so that it can be directly used in the fan-out plug assembly 80, the seventh groove (52) was to be formed near the third mounting portion (50).

As described above, in the field-assembled optical fiber branch kit of the present invention, the components for assembling each of the multi-core type field-assembled optical connector 60, the single-core type field-assembled optical connector 70, and the fan-out plug assembly 80 are divided and organized It is a field-assembled fiber optic divergence kit that is stored in a closed state.

The multi-core type field-assembled optical connector 60 is an optical connector that enables transmission by reducing the volume of a device and optical cable for transmitting a large amount of data by connecting a plurality of optical fibers with one connector, and the single-core type The field assembly optical connector 70 is an optical connector using a single optical fiber by connecting one connector, and the fan-out plug assembly 80 is formed on one side of the plug 81 (Plug) formed at one end of the multi-core type field. A plurality of optical fibers of the assembling optical connector 60 are individually assembled and fused and connected, and at the other end of the plug 81, a cord 82 branching in the same number as the number of connected optical fibers is extended and formed for each cord 82. The single-core field-assembled optical connector 70 is individually fused and connected, delivered as a single multi-core field-assembled optical connector 60, branched to the place of use, and delivered to the single-core field-assembled optical connector 70 will do

Of course, the part to which the optical cable is fused must be connected through a separate portable fusion device or various fusion means.

As a result, the field-assembled optical fiber branch kit of the present invention is carried and assembled on-site at a site requiring optical cable installation. By fusing and using the multi-core field-assembled optical connector 60 and the single-core field-assembled optical connector 70 at both ends of the assembly 80, respectively, when using an existing pre-assembled finished product, the field installation length and fan-out plug The assembly 80 or the length of the optical cable is different, so that the problem of remaining of an optical cable that cannot be installed or used is not possible.

Field-assembled optical fiber branch kit according to the present invention

As a second embodiment, as shown in FIGS. 6 to 11 , it includes a lower case 20 , a first mounting part 30 , a second mounting part 40 , and a third mounting part 50 .

parts

Of course, a detachable cover (not shown) is provided on the upper portion of the lower case 20, and this cover corresponds to the protruding surface 21, and the protruding surface 21 corresponds to forming a space in which it is fitted. It has a ┎┑' cross section.

The lower case 20 and the cover are formed of a transparent material, so that the internal components can be directly identified from the outside, but this is a part that can be changed according to various embodiments of the user.

fifth grooves

The first groove 41 is a plurality of single-centre sub-assemblies 71 (Sub Ass'y) mounted, so that the plurality of grooves are formed horizontally in the transverse and longitudinal directions, a plurality of digging. In this single-core subassembly 71, the optical fiber is protected by a protective film on one end and protrudes, and the other end is mounted with a separate protective cap on, and when used, the protective film is partially removed, and the protective cap is removed to be used. .

In the case of the single-core subassembly 71 mounted in the first groove 41 , the single-centre subassembly 71 is not directly mounted in the first groove 41 , but is pre-mounted in the package part 90 . After being fixed, the package portion 90 is mounted in the first groove 41 .

The package part 90 has a fixing groove 91 having a shape corresponding to the single-core sub-assembly 71 so that the single-core sub-assembly 71 is floated, and the single-core sub-assembly 71 is recessed in the fixing groove 91 . After the assembly 71 is inserted and mounted, the protective tape 92 is covered on the upper surface.

The second groove 42 is a portion in which the frame 72 fastened to one end of the single-centre subassembly 71 is stored, and the third groove 43 is fastened correspondingly to one end of the frame 72 . A part in which the screw cap sub-assembly 76 is stored.

The screw cap subassembly 76 corresponds to a screw cap 73 fastened to one end of the frame 72 and a boot 74 fitted to one end of the screw cap 73 (Boot). ), one end of which is fitted inside the boot 74, and a protective tube 75 (Protection tube) that protects the optical fiber of the single-core subassembly 71 and the optical fiber fusion portion of the fan-out plug assembly 80. .

That is, the frame 72 , the screw cap 73 , the boot 74 , and the protection tube 75 are successively fastened to one end of the single-centre sub-assembly 71 and assembled, so that a single single-core type on-site assembly light It will be the connector 70 . (Of course, depending on the user's embodiment, the screw cap sub-assembly 76 may be composed of a screw cap 73, a boot 74, and a protective tube 75 that are separated from each other without being coupled. )

Of course, since there are a plurality of single-core sub-assemblies 71 , the number of screw cap sub-assemblies 76 including the frame 72 , the screw cap 73 , the boot 74 , and the protection tube 75 must also be plural. and the number corresponding to the optical fiber strand (ex: 8, 12, etc.) is kept.

The third mounting part 50 is recessed in the form of a ring on the protruding surface 21, and by connecting the multi-core type field-assembled optical connector 60 and the single-core type field-assembled optical connector 70 at both ends, respectively, a large amount of data is stored. While reducing the installation volume of the device and optical cable for transmission, it is delivered as a single multi-core type field-assembled optical connector (60), and a single-core type field-assembled optical connector (70) is used to branch and connect to a number of places of use. It is a part to which the out plug assembly 80 (Fanout Plug Ass'y) is mounted. In the fan-out plug assembly 80, a plurality of holes are formed to individually connect a plurality of cords 82 to one end of a cord 82 made of a plurality of wires that are optical fiber wires, and a plurality of holes are formed. It is composed of a part of the plug 81 that binds the cord 82 integrally.

In addition, the present invention further includes a fourth groove 44 and a fifth groove 45 for storing components for protecting the connection portion between the multi-core type on-site assembly optical connector 60 and the fan-out plug assembly 80 .

In the fourth groove 44, the optical fiber of the cord line 61 of the multi-core type field-assembled optical connector 60 is inserted corresponding to the plug 81 part of the fan-out plug assembly 80, and the plurality of It is a groove in which a plurality of sleeves 84 fitted to each of the optical fibers 85 are stored.

The fifth groove 45 is a groove in which the components of the fan-out cover 83 for protecting the connection part of the multi-core type optical connector 60 and the plug 81 of the fan-out plug assembly 80 are stored, In the present invention, the fifth groove 45 is formed on the protruding surface 21 formed in the center of the third mounting part 50 recessed in a ring shape, so that it can be directly used in the fan-out plug assembly 80, the fifth groove (45) was formed near the third mounting portion (50).

The multi-core type field-assembled optical connector 60 is an optical connector that enables transmission by reducing the volume of a device and optical cable for transmitting a large amount of data by connecting a plurality of optical fibers with one connector, and the single-core type The field assembly optical connector 70 is an optical connector using a single optical fiber by connecting one connector, and the fan-out plug assembly 80 is formed on one side of the plug 81 (Plug) formed at one end of the multi-core type field. A plurality of optical fibers of the assembling optical connector 60 are individually assembled and fused and connected, and at the other end of the plug 81, a cord 82 branching in the same number as the number of connected optical fibers is extended and formed for each cord 82. The single-core field-assembled optical connector 70 is individually fused and connected, delivered as a single multi-core field-assembled optical connector 60, and branched to the point of use so that it can be delivered to the single-core field-assembled optical connector 70 will do

Of course, it will be natural that the part to which the optical fiber is fused should be connected through a separate portable fusion splicing device or various fusing means.

Accordingly, the field-assembled optical fiber branch kit of the present invention is to be carried and assembled on-site at the site where optical cable installation is required. After assembling 60 and assembling the fan-out plug assembly 80 at the other end, the single-core type on-site assembly optical connector 70 is fused and assembled to use, so that when using a pre-assembled finished product, the installation length and The fan-out plug assembly 80 or the length of the optical cable is different, so that the problem that the installation is impossible or the excess of the optical cable that cannot be used remains is prevented from occurring.

In addition, through the above configuration, in the field-assembled optical fiber branch kit of the present invention, the multi-core type field-assembled optical connector 60, the single-core type field-assembled optical connector 70, and the fan-out plug assembly 80 are all included. It was explained that there is

It goes without saying that the field-assembled optical fiber branch kit may be configured without the multi-core field-assembled optical connector 60 or the single-core type field-assembled optical connector 70 according to various embodiments of the user.

As an embodiment of the multi-core optical fiber cord protection unit according to the present invention, as shown in FIGS. 12 to 19,

It includes a fusion sleeve (Sleeve) 100 , a main cover 140 , a side cover 150 , and a screw cap assembly 160 .

The fusion sleeve 110 is covered with a fusion part of a multi-core optical fiber (F) that is fusion spliced in the form of a flat ribbon after the outer skin is peeled off, and is used for protection of the fusion splicing part, which is the fusion splicing part.

The main cover 140 has a fitting space 121 in which the above-described fusion sleeve 110 can be mounted correspondingly, and is composed of upper and

lower covers

130 and 120, and is fastened and fixed in a state in which they are separated from each other. and the fused multi-core optical fiber F is exposed to the outside on both sides.

The upper and

lower covers

130 and 120 have a cross-sectional shape of a semicircle of a shape corresponding to each other in order to form a cylindrical shape of a circular cross-section with both ends open and the interior empty in the longitudinal direction when coupled to each other. Looking at the fastening structure in which the upper and

lower covers

130 and 120 are fastened to form a single body,

A plurality of fitting pieces 122 protruding toward the upper cover 130 from both sides of the fitting space 121 of the lower cover 120 and the fitting pieces 122 penetrate through the upper cover 130 so that the fitting pieces 122 are coupled to each other. Through the formed insertion portion 131, the fastening path of the fitting piece 122 and the insertion portion 131 so that the upper and

lower covers

130, 120 can be fastened and fixed, and also,

A plurality of hooking pieces 132 in the form of hooks protruding from both sides of the top cover 130 toward the bottom cover 120 and the plurality of hooking pieces 132 correspond to each other so that the lower cover 120 can be draped over. ) through the locking grooves 125 formed on both sides of the outer periphery, so that the upper and

lower covers

130 and 120 can be fastened and fixed more reliably.

In addition, the main cover 140 has a support piece 123 and a fixing groove 124 to be further formed, so that the multi-core optical fiber F can be fixedly supported and fastened to the side cover 150 to be described later can be ensured. The support piece 123 is formed to protrude in the vertical direction on both inner periphery of both sides of the above-described lower cover 120, and is a plate material for supporting the multi-core optical fiber (F).

The fixing grooves 124 are formed on both sides of the upper and

lower covers

130 and 120, on one side of the support piece 123 (more specifically, on the upper and lower covers 130 and 120) than the support piece 123 forming portion. It is recessed in the form of a ring in the outer part) so that the fastening ring 153 formed on the outer periphery of the side cover 150 is mounted and fixed.

The side cover 150 is fastened and fixed to both sides of the above-described main cover 140 and extended, so that the multi-core optical fiber F is penetrated therein in the longitudinal direction.

The side cover 150 has a cylindrical shape with a circular cross-section, the inside of which is empty in the longitudinal direction.

In addition, the rotation fastening part 151 formed on the outer periphery is formed so that the screw cap assembly 160 can be screwed, and one end of the rotation fastening part 151 (more specifically, the main cover described above) 140) extending in the form of a hemispherical cross-section of '∩' with an open lower end, and placed on the support pieces 123 protruding vertically on both sides of the lower cover 120, the multi-core optical fiber ( F) to further form an extension portion 152 for fixing the position.

The screw cap assembly 160 is to first align the outer skin of the Kevlar and optical cable on the outside of the above-described side cover 150, and then are screwed to both sides of the outer periphery of the side cover 150, respectively.

Of course, it will be natural that the multi-core optical fiber F penetrates in the inner longitudinal direction, and has a circular cross-section whose diameter gradually becomes narrower as it moves away from the side cover 150 .

For this purpose, the screw cap assembly 160 has a structure that is sequentially fastened in the order of a screw cap 161 , a fiber cord boot 162 , and a protection tube 163 . .

In addition, the coupling sequence of the multi-core optical fiber cord protection unit 170 having the above structure will be described with reference to FIGS. 15 and 16 .

1. After fusion splicing two ribbon-type multi-core optical fibers (F) to be fusion spliced through a separate portable splicing device or various splicing means, the splicing sleeve 110 is covered on these splicing sites. After being protected,

2. Insert the fusion sleeve 110 into the fitting space 121 of the lower cover 120 constituting the main cover 140 so as to correspond, and both sides of the multi-core optical fiber F are both sides of the lower cover 120 in the longitudinal direction. Assembled to protrude with

3. In the fixing grooves 124 formed on both sides of the lower cover 120, one side of the fastening ring 153 of the side cover 150 is fixed while correspondingly mounted,

4. The upper cover 130 is fastened to correspond to the upper end of the lower cover 120. At this time, the fitting piece 122 of the lower cover is fastened to the insertion part 131 of the upper cover 130, and the upper cover ( While the locking piece 132 of 130 is fastened to the locking groove 125 of the lower cover 120 , the upper and

lower covers

130 and 120 are securely coupled and fixed to each other.

5. After arranging the outer skin of the optical cable and Kevlar built into the optical cable on the outside of the side cover 150,

6. Finally, the screw cap assembly 160 (screw cap 161) is screwed together at both ends of the side cover 150 to complete the assembly.

In the present invention, together with the multi-core optical fiber cord protection unit 170 having the above structure, the optical fiber branch assembly 200 and the multi-core connection type optical connector kit 300 are configured as a single branch kit 400, Enables fast fiber optic cable connection.

As a first example for this

In order to protect the fusion splicing between the multi-core optical fibers (F) to be fused, a multi-core optical fiber cord protection unit 170 assembled at the fusion splicing unit in the field; an optical fiber branch assembly 200 that is provided in a pre-assembled state at the factory and is connected to one end of the multi-core cord line 500; A multi-core connection-type optical connector kit 300 configured by being divided into a plurality of components so as to be assembled into a multi-core connection type optical connector 310 in the field; The multi-core fiber optic cord protection unit 170 can be mounted, the inside of the branch kit 400 is divided into a plurality of spaces 410; is composed of; to enable the installation of

Alternatively, in order to protect the fusion splicing between the multi-core optical fibers F to be fused, a multi-core optical fiber cord protection unit 170 assembled to the fusion splicing in the field; an optical fiber branch assembly 200 that is provided in a pre-assembled state at the factory and is connected to one end of the multi-core cord line 500; a branch kit 400 whose interior is partitioned into a plurality of spaces 410 so that the multi-core optical fiber cord protection unit 170 can be mounted; It enables quick optical cable connection in the field.

That is, as described above, the multi-core optical fiber cord protection unit 170 is a part assembled at the fusion splicing part in the field to protect the fusion splicing part between the multi-core optical fibers F to be fusion spliced,

The optical fiber branch assembly 200 (branched and connected to multiple uses) and the multi-core connection type optical connector kit 300 are each provided in a pre-assembled state (pre-assembled) at the factory, and are connected and installed at one end of each optical fiber will become

The branch kit 400 is provided with a multi-core optical fiber cord protection unit 170, an optical fiber branch assembly 200, and a multi-core connection type optical connector kit 300, and is assembled on-site, a multi-core optical fiber cord protection unit 170 ), the optical fiber branch assembly 200, and the multi-core connection type optical connector kit 300 to be mounted, the inside of which is divided into a plurality of spaces 410 to serve as an openable and openable transport box.

In the case of the multi-core connection type optical connector kit 300, as shown in FIG. 18, a cover is provided so that it can be opened and closed, and a plurality of old parts are partitioned and arranged in the inner space of the multi-core connection type optical connector kit 300 It is configured in the form of a single multi-core connection type optical connector 310 to be assembled and used in the field, thereby enabling rapid optical cable connection and installation of the multi-core connection type optical connector 310.

In addition, in the case of the multi-core connection type optical connector kit 300, as shown in FIG. 19, the multi-core connection type optical connector 310 is provided in the branch kit 400 in a pre-assembled form, or the branch kit ( 400) is provided with only the multi-core optical fiber cord protection unit 170 and the optical fiber branch assembly 200, so that it is possible to quickly connect the optical cable and install the multi-core optical connector 310 in the field.

In other words, in order to protect the fusion splicing between the multi-core optical fibers F to be fused, the multi-core optical fiber cord protection unit 170 that is assembled on the fusion splicer in the field is provided in a pre-assembled state at the factory, and the multi-core cord The optical fiber branch assembly 200 connected to one end of the line 500, the multi-core connection type optical connector 310, and the multi-core cord line 500 are connected and connected in the field.

As described above, although the present invention has been described with reference to limited embodiments and drawings, the present invention is not limited thereto, and the technical spirit of the present invention and the following by those of ordinary skill in the art to which the present invention pertains. Of course, various modifications and changes are possible within the scope of equivalents of the claims to be described.

Claims

A lower case 20 having a detachable cover 10 and having a protruding surface 21 protruding upward to be spaced apart from the ground thereon;

a first mounting portion 30 formed in a depression in the protruding surface 21 and into which a ribbon-type multi-core type on-site assembly optical connector 60 is mounted and inserted;

a second mounting portion 40 which is recessed in the protruding surface 21 and into which components capable of assembling the single-core type on-site assembly optical connector 70 are individually mounted and inserted;

Doedoe recessed in a ring shape in the protruding surface 21, the multi-core type field-assembled optical connector 60 and single-core type field-assembled optical connector 70 are connected at both ends, respectively, and the volume of optical cables and equipment for mass data transmission A fan-out plug assembly 80 that is delivered to a single multi-core type field-assembled optical connector 60 while reducing a third mounting unit 50; consists of,

It is carried and assembled on-site at the site where optical cable installation is required, and the length of the fan-out plug assembly 80 is cut as much as the installation length required for optical cable installation at the site, and the multi-core type on-site assembly optical at both ends of the fan-out plug assembly 80 By fusing and using the connector 60 and the single-core field-assembled optical connector 70, respectively, when using an existing pre-assembled product, the installation length and the optical cable length are different from the on-site optical cable, which makes installation impossible or impossible. To avoid the problem of remaining excess of

The second mounting part 40 is

a plurality of first grooves 41 in which a plurality of single-centre sub-assemblies 71 are mounted;

a second groove 42 in which a frame 72 fastened to one end of the single-centre sub-assembly 71 is stored;

a third groove 43 in which a screw cap 73 fastened to one end of the frame 72 is stored;

a fourth groove 44 corresponding to one end of the screw cap 73 and in which the fitted boot 74 is stored;

A fifth groove 45 in which one end is fitted inside the boot 74 and a protective tube 75 for protecting the optical cable of the single-core subassembly 71 and the optical cable fusion portion of the fan-out plug assembly 80 is stored. );
The method of claim 1,

Fitted to each of the plurality of cord lines 61 so that the cord line 61 of the multi-core type optical connector 60 corresponds to the plug 81 part of the fan-out plug assembly 80 and can be fitted. a sixth groove 51 in which a plurality of sleeves 83 are stored;

a seventh groove (52) in which the components of the fan-out cover (83) for protecting the connection part of the plug (81) of the multi-core optical connector (60) and the fan-out plug assembly (80) are stored;

Field assembly type optical fiber branch kit, characterized in that consisting of.
The method of claim 1,

The third mounting part 50 is recessed in a ring shape to the ground so that the fan-out plug assembly 80 is stored in a wound state, and the first mounting part 30 is partially and locally with the third mounting part 50 . overlapped with, and formed to be recessed to a relatively lower depth than the third mounting part 50,

The first mounting part 30 is equipped with a multi-core type on-site assembly optical connector 60, and an auxiliary kit 31 in which components for assembling the multi-core type on-site assembly optical connector 60 are mounted, characterized in that field-assembled fiber optic divergence kit.
The method of claim 1,

The field-assembled fiber optic branch kit is

A ribbon-type multi-core type field-assembled optical connector 60 that uses a plurality of optical fibers to connect and use a single connector to transmit a large amount of data by reducing the volume;

a single-core type field-assembled optical connector 70 for connecting a single optical fiber with one connector;

A plurality of optical fibers of the multi-core type field-assembled optical connector 60 are individually assembled on one surface of the plug 81 formed at one end and are connected by fusion, and the other end of the plug 81 is a cord branching in the same number as the number of connected optical fibers. The 82 is extended, and the single-core field-assembled optical connector 70 is individually fused and connected for each cord 82, thereby reducing the volume of optical cables and the volume of equipment when transmitting a large amount of data, thereby reducing the volume of a single multi-core type. a fan-out plug assembly 80 that receives the delivery to the field-assembled optical connector 60, branches it to a place of use, and delivers it to the single-core optical connector 70;

Field-assembled fiber optic divergence kit, characterized in that it is stored so that it can be transported and carried.
A lower case 20 having a removable cover, and forming a protruding surface 21 protruding upward to be spaced apart from the ground;

Auxiliary kit 31 in which the components for assembling the multi-core optical connector 60 are stored, which is recessed in the protruding surface 21, and the ribbon-type multi-core optical connector 60 is mounted and inserted. ) a first mounting part 30 to which it is mounted;

a second mounting portion 40 recessed in the protruding surface 21 and into which components capable of assembling the single-core type on-site optical connector 70 are individually or mutually assembled and inserted;

Doedoe recessed in a ring shape in the protruding surface 21, the multi-core type field-assembled optical connector 60 and single-core type field-assembled optical connector 70 are connected at both ends, respectively, and the volume of optical cables and equipment for mass data transmission A fan-out plug assembly 80 that is delivered to a single multi-core type field-assembled optical connector 60 while reducing a third mounting unit 50; consists of,

It is carried and assembled on-site at the site requiring optical cable installation. The length of the optical cable is cut as much as the installation length required for optical cable installation at the site, and the multi-core type field-assembled optical connector 60 is fused and assembled at one end, and the fan-out plug is at the other end. After assembling the assembly 80, the single-core type on-site assembly optical connector 70 is fused and assembled and used. When using a pre-assembled finished product, the installation length on site and the length of the optical cable are different, so installation is impossible or used. Field-assembled fiber optic divergence kit, characterized in that it does not cause the problem of remaining redundant optical cables.
6. The method of claim 5,

The second mounting part 40 is

a plurality of first grooves 41 in which a plurality of single-centre sub-assemblies 71 are mounted;

a second groove 42 in which a frame 72 fastened to one end of the single-centre sub-assembly 71 is stored;

a third groove 43 in which a screw cap sub-assembly 76 correspondingly fastened to one end of the frame 72 is stored;

Field assembly type optical fiber branch kit, characterized in that consisting of.
7. The method of claim 6,

The screw cap sub-assembly 76 is

a screw cap 73 fastened to one end of the frame 72;

a boot 74 that corresponds to one end of the screw cap 73 and is fitted;

a protective tube 75 having one end fitted inside the boot 74 and protecting the optical fiber of the single-core subassembly 71 and the optical fiber fusion portion of the fan-out plug assembly 80;

Field assembly type optical fiber branch kit, characterized in that consisting of.
7. The method of claim 6,

The single-centre subassembly 71 is

A fixing groove 91 having a shape corresponding to that of the single-centre sub-assembly 71 is formed so that the single-centre sub-assembly 71 is floated, and after the single-centre sub-assembly 71 is inserted and mounted in the fixing groove 91 . In the field assembly type optical fiber branch kit, characterized in that after being pre-mounted to the package part (90) covered with the protective tape (92) on the upper surface, the package part (90) is mounted in the first groove (41).
9. The method according to any one of claims 5 to 8,

The optical fiber of the cord line 61 of the multi-core type field-assembled optical connector 60 is fitted corresponding to the plug 81 part of the fan-out plug assembly 80, and is fitted to each of the plurality of optical fibers 85. a fourth groove 44 in which a plurality of sleeves 84 are stored;

A fifth groove (52 fifth groove 45) in which the fan-out cover 83 for protecting the plug 81 connection part of the multi-core type optical connector 60 and the fan-out plug assembly 80 is stored. ;

Field assembly type optical fiber branch kit, characterized in that consisting of.
9. The method according to any one of claims 5 to 8,

The third mounting part 50 is recessed in a ring shape to the ground so that the fan-out plug assembly 80 is stored in a wound state, and the first mounting part 30 is partially and locally with the third mounting part 50 . A field-assembled optical fiber branch kit, characterized in that it is formed to be recessed to a relatively lower depth than the third mounting part (50) while being overlapped with each other.
6. The method of claim 5,

The field-assembled fiber optic branch kit is

A ribbon-type multi-core type field-assembled optical connector 60 that allows a large amount of data to be transmitted by reducing the volume by connecting a plurality of optical fibers to one connector;

a single-core type field-assembled optical connector 70 for connecting a single optical fiber with one connector;

A plurality of optical fibers of the multi-core type field-assembled optical connector 60 are individually assembled on one surface of the plug 81 formed at one end and are connected by fusion, and the other end of the plug 81 is a cord that is branched in the same number as the number of connected optical fibers. 82 is extended, and single-core field-assembled optical connectors 70 are individually fused and connected for each cord 82, reducing the volume of optical cables and equipment when transmitting a large amount of data, resulting in a single multi-core type a fan-out plug assembly 80 that receives the delivery to the field-assembled optical connector 60, branches it to a place of use, and delivers it to the single-core optical connector 70;

Field-assembled fiber optic divergence kit, characterized in that it is stored so that it can be transported and carried.
6. The method of claim 5,

The field-assembled fiber optic branch kit is

Does not include the multi-core type on-site assembly optical connector (60),

Field assembly type optical fiber branch kit, characterized in that it consists only of the single-core type field assembly optical connector (70) and the fan-out plug assembly (80).
6. The method of claim 5,

The field-assembled fiber optic branch kit is

It does not include the single-core type on-site assembly optical connector 70,

Field assembly type optical fiber branch kit, characterized in that it consists only of the multi-core type field assembly optical connector (60) and the fan-out plug assembly (80).
7. The method of claim 6,

The field assembly type optical fiber branch kit, characterized in that it is composed of a screw cap (73), a boot (74), and a protection tube (75) in a form in which the screw cap sub-assembly (76) is not coupled to each other.
The fusion sleeve 110 is covered with the fusion part of the multi-core optical fiber (F) that is fusion spliced in the form of a flat ribbon after the outer skin is peeled off, and is used to protect the fusion part;

A fitting space 121 to which the fusion sleeve 110 can be mounted is formed therein, and it is composed of upper and lower covers 130 and 120 and is fastened and fixed in a state in which they are separated from each other, and multi-core fused on both sides. a main cover 140 through which the optical fiber F is exposed to the outside;

a side cover 150 that is fastened and fixed to both sides of the main cover 140 and installed to extend, and allows the multi-core optical fiber F to pass therethrough in the longitudinal direction;

a screw cap assembly 160 that is screwed to both sides of the side cover 150 after aligning the outer skin of the Kevlar and the optical cable on the outside of the side cover 150;

It is composed of, and is assembled and used in the field to protect the fusion part,

The main cover 140 is

Fitting pieces 122 protruding from both sides of the fitting space 121 of the lower cover 120 toward the upper cover 130;

Insertion part 131 which is formed through the top cover 130 so that the fitting piece 122 is fastened correspondingly;

A plurality of hooking pieces 132 in the form of hooks protruding from both sides of the top cover 130 toward the bottom cover 120;

Locking grooves 125 formed on both sides of the outer periphery of the lower cover 120 so that the plurality of locking pieces 132 correspond and can be spanned; is composed of

The main cover 140 is

a support piece 123 protruding vertically from the inner periphery of both sides of the lower cover 120 to support the multi-core optical fiber F;

On both sides of the upper and lower covers 130 and 120, a ring-shaped depression is formed on one side of the support piece 123, and a fastening ring 153 formed at one end of the side cover 150 on the outer periphery is mounted correspondingly. and a fixing groove 124 to be fixed; includes,

The side cover 150 is

a rotation fastening part 151 formed on an outer periphery so that the screw cap assembly 160 can be screwed;

It extends from one end of the rotation fastening part 151 in a hemispherical shape and is mounted on the support pieces 123 protruding vertically on both sides of the lower cover 120 to fix the position of the multi-core optical fiber (F). extension 152; Multi-core optical fiber cord protection unit comprising a.
The multi-core optical fiber cord protection unit 170 of claim 15;

an optical fiber branch assembly 200 that is provided in a pre-assembled state at the factory and is connected to one end of the multi-core cord line 500;

a branch kit 400 whose interior is partitioned into a plurality of spaces 410 so that the multi-core optical fiber cord protection unit 170 can be mounted;

It enables rapid multi-core optical fiber connection and installation of multi-core connection type optical connector 310 in the field.

The branch kit 400 has

A multi-core connection-type optical connector kit 300 configured by being divided into a plurality of components so as to be assembled into a multi-core connection type optical connector 310 in the field; Branch kit including a multi-core optical fiber cord protection unit, characterized in that it is further provided.