KR20100121177A - Optical terminal box - Google Patents

Abstract

PURPOSE: The light terminal box can pass through the connector combined in the output side optical fiber. CONSTITUTION: A frame(10) is that the receiving space is formed in inside. The splitter module is attachably and detachably installed inside frame. It is rotatable, frame unites the first frame and the second frame. It is rotatable, the first frame or the second frame establishes the flat board. The fusion splice board for the fusion splice of the optical fiber or the adapter fixing member is installed in the front side or the backside surface of the flat board.

Description

Optical terminal box

The present invention relates to an optical terminal box, and more particularly, it is possible to easily add, remove, and replace a splitter module according to the number of optical subscribers, and to provide a fusion splicing plate or an intermediate branch to enable fusion splicing and an intermediate branch of an optical fiber, The present invention relates to an optical terminal box having an adapter fixing member used in the case of using a field-assembled connector without fusion splicing, and having a outlet through which a connector coupled to an output optical fiber can pass.

In today's information society, the role of communication network is very important. Especially, as network communication such as the Internet is developed and a large amount of data is transmitted such as video or voice, an increase in information throughput and processing speed is required. There is an urgent need for expansion of communication networks. In order to satisfy this demand, optical cables are used instead of coaxial cables as a way to process large amounts of information at high speed. However, the use of optical cables is increasing rapidly.

In recent years, FTTH (Fiber to Fiber) is provided to each home for the purpose of providing high-quality, high-speed services by eliminating the conventional system that the optical cable enters only the management building of the apartment complex and uses the regular telephone line from the management building to each home. the home network. In addition, in the construction of such FTTH network, an optical terminal box for distributing an optical cable from a base station to each home is used.

In general, the optical terminal box is a structure in which the optical fiber of the optical cable from the base station is fusion-spliced with the optical jumper one-side code, and then drawn out in the form of the optical outdoor and the optical cable using the optical adapter in the optical terminal box. Therefore, the optical cable drawn from the base station, the optical fiber's optical fiber and the optical jumper one-piece cord, and the optical fiber trimming part should exist in the branch box. need.

In addition, after constructing the optical terminal box facility, it is troublesome to pull out the optical fiber necessary for the failure and the rearrangement of the wiring from the connection tray, and to fix the extracted optical fiber to the connection tray after fusion splicing. In addition, when supplying optical facilities to general dedicated optical subscribers, more connection trays are needed to protect the fusion splicing part. Due to the high possibility of influence, the existing optical terminal box causes a lot of difficulties in constructing the facility according to the structure and the connection method.

In order to solve the above problems, Korean Patent Laid-Open Publication No. 2007-0056457 proposes a structure in which an adapter is integrally coupled in a terminal box. However, the structure in which the adapter and the terminal box are integrally combined as described above does not actively cope with the change in the number of subscribers, and there is a problem in that additional terminal boxes must be additionally installed when the number of subscribers is increased.

It is an object of the present invention to provide an optical terminal box that can easily add, remove, and replace a splitter module according to the number of optical subscribers.

In order to achieve the above object, an optical terminal box according to the present invention includes a frame in which an accommodation space is formed; And a splitter module detachably installed in the frame and branching the input optical fiber of the optical cable introduced into the frame and connecting the plurality of output optical fibers.

Preferably, the frame is formed by rotatably coupling the first frame and the second frame, the plate is rotatably installed on any one of the first frame and the second frame, either one of the front and rear of the plate A fusion splicing plate for fusion splicing of the optical fiber is installed on the surface, or an adapter fixing member used in the case of using a field-assembled connector is installed, and the splitter module is detachably installed on one side of the front and rear surfaces.

More preferably, at least two or more splitter modules are stacked and installed on a flat plate, and the splitter module includes: a protrusion inserted into a fixing groove of the flat plate; And a fastening groove into which the protrusions of the splitter module stacked on the upper part are inserted, and the protrusions provided on the lower splitter module are inserted into the fixing grooves so that the lower splitter module is fixed to the flat plate, The protrusion is inserted into the fastening groove provided in the lower splitter module, so that the upper splitter module and the lower splitter module are detachably coupled to each other.

More preferably, the optical terminal box has a connecting piece provided on the side of the splitter module, and the protrusion and the fastening groove are formed at the tip of the connecting piece.

More preferably, one end of the splitter module is provided with a rotation shaft, and the plate is provided with a support for supporting the rotation shaft to be rotatable so that the splitter module can be rotated about the rotation shaft.

Preferably, the frame is formed by rotatably coupling the first frame and the second frame, each having at least one inlet through which the optical cable is drawn in and an outlet through which the optical cable is drawn out, and an extracting unit through which the output side optical fiber is drawn out. Include.

More preferably, the optical terminal box, the inlet plug blocking the inlet; And an outlet plug blocking the outlet.

More preferably, the lead portion, the first outlet having a diameter through which the output side optical fiber can pass; And a second outlet having a diameter through which a connector coupled to the distal end of the output side optical fiber can pass.

More preferably, the optical terminal box is provided with an outlet plug for blocking the first outlet and the second outlet.

The optical terminal box according to the present invention has the following effects.

First, the splitter module can be easily added, removed, or replaced according to the number of optical subscribers.

Second, fusion splicing and intermediate branching of optical fibers are possible.

Third, the connector coupled to the output side optical fiber also has an outlet through which it can pass.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention. Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely examples of the present invention and are not intended to represent all of the technical ideas of the present invention, so that various equivalents And variations are possible.

1 is a perspective view showing an optical terminal box according to a preferred embodiment of the present invention.

Referring to the drawings, the optical terminal box 100 is a frame 10, 20, a flat plate installed inside the frame 10, 20, a fusion splicing plate provided on the front of the flat plate, a splitter provided on the back of the flat plate Contains modules

The frame 10, 20 has a first frame 10 and a second frame 20 which are rotatably coupled. The storage space is formed inside the frames 10 and 20. The storage space accommodates an adapter and a splitter module to be used when using a flat plate, a fusion splicing plate, and a field-assembled connector. In addition, the storage space also provides a space for processing the length of the optical cable. The size of the frame 10 or 20 for providing such a storage space may vary depending on the usage capacity. Preferably, the frame 10, 20 has a size of 270mm in width, 180mm in length, 85mm in height.

As shown in FIG. 2, the first frame 10 includes a coupling shaft 11, an inlet 12a through which an input side optical cable (not shown) is drawn in, and an outlet 12b through which an output side optical cable (not shown) is drawn out; , The lead portion 13 to which the output side optical fiber (not shown) is drawn out, the fastening hole 14 fastened to the fastening clip (80 in FIG. 11), and the fastener 90 fastened to the barbed wire (not shown). The fixing hole 15 is fixed.

Meanwhile, as shown in FIG. 3, the second frame 20 covers the first frame 10 so that an accommodation space is formed therein. The second frame 20 has a fixing piece 21 that is fastened to the fastening clip 80.

The coupling shaft 11 is provided at one side of the first frame 10, and is inserted into the coupling hole of the second frame 20 to rotatably couple the first frame 10 and the second frame 20 to each other. .

The inlet 12a is a hole through which the input side optical cable enters the storage space, and the outlet 12b is a hole through which the output side optical cable exits from the storage space. Preferably, two or more inlets 12a and 12b are formed. Preferably, the inlet 12a and outlet 12b have a diameter into which a cable with an outer diameter of 15 mm can be inserted.

An inlet plug 12c of FIG. 4 may be inserted into the inlet 12a and an outlet plug 12d may be inserted into the outlet 12b. The inlet plug 12c prevents foreign matter from entering the storage space through the inlet 12a, and the outlet plug 12d prevents foreign matter from entering the storage space through the outlet 12b.

The lead portion 13 may include a first outlet 13a having a diameter through which an output side optical fiber (not shown) may pass, and a second portion having a diameter through which a connector (not shown) coupled to a distal end of the output side optical fiber may pass. A take-out port 13b is provided. The output side optical fiber, which is pre-coupled with the connector, can also be connected to the splitter module 40 in FIG. 8 through the second outlet 13b, thereby making the operation convenient. It is preferable that the 2nd drawing-out port 13b is formed in both ends of the drawing part 13, respectively.

FIG. 2 shows the lead portion 13 having 16 (2 × 8) first outlets 13a and two second outlets 13b, but the first and second outlets 13a and 13b. The number of may be increased or decreased depending on the capacity of the optical terminal box (100).

Preferably, the lead portion 13 is provided with an outlet plug (13c in FIG. 5) that closes the first outlet 13a and the second outlet 13b. The outlet plug 13c prevents foreign matter from entering the storage space through the first outlet 13a and the second outlet 13b.

The second shaft (85 in FIG. 12) of the fastening clip 80 is fastened to the fastening hole 14 so as to be rotatable. A projection piece (84 in Fig. 12) of the fastening clip 80 is fitted into the gap 21a of the fixing piece 21 to be fixed. The fastening hole 14 and the fixing piece 21 are further described below.

The fastener 90 is inserted into and fixed to the fixing hole 15. The fastener 90 is for hanging the optical terminal box 100 on a rough line (not shown), and has a conventional structure.

Preferably, the first frame 10 has first and second protrusions 16 and 17 for fastening with a flat plate (30 in FIGS. 7A-9). A first fastening hole 16a into which the first insertion shaft 31 is inserted is formed in the first protrusion 16, and a second fastening hole into which the second insertion shaft 32 is inserted into the second protrusion 17. 17a) is formed. More preferably, the first fastening hole 16a is a through hole whose circumference is completely sealed, and the second fastening hole 17a is a through hole whose part of the circumference is open. This point is discussed further below.

The first frame 10 has a first clamp (18a of FIG. 6) for fixing the tension line of the input side optical cable (not shown), and a second clamp 18b for fixing the tension line of the output side optical cable (not shown). It may be provided.

The flat plate 30 is rotatably installed in the first fastening hole 16a and the second fastening hole 17a. As shown in FIGS. 7A to 9, the flat plate 30 includes a first insertion shaft 31 fitted into the first fastening hole 16a and a second insertion shaft 32 fitted into the second fastening hole 17a. ), A fixing groove 33 to which the protrusions 41 of the splitter module 40 are fastened, and a support 34 on which the pivot shaft 44 of the splitter module 40 is rotatably supported.

As described above, the first fastening hole 16a is a through hole whose circumference is completely sealed, and the second fastening hole 17a is a through hole whose part of the circumference is open. Accordingly, in the state where the first insertion shaft 31 is inserted into the first fastening hole 16a, the second fastening hole 17a is opened through the open portion of the second fastening hole 17a. Push it into to insert it.

The fixing groove 33 is a groove into which the protrusion 41 of the splitter module 40 is inserted and fixed.

The support 34 supports the rotation shaft 44 rotatably. The support 34 has a number of support grooves 34a corresponding to the number of the plurality of splitter modules 40 stacked in a plurality or more. In the drawing, two splitter modules 40 are stacked, and two support grooves 34a are formed in the support 34.

Preferably, the flat plate 30 is rotated to 90 degrees when the first frame 10 is erected vertically and is horizontal to the ground. When the fastener 90 hangs on a barbed wire or the like and the first frame 10 is perpendicular to the ground, the flat plate 30 is rotated so that the side surface 39 of the flat plate 30 has the first and second protrusions 16 ( When it comes in contact with the side surfaces 16b and 17b of the 17, the flat plate 30 is horizontal. That is, since the flat plate 30 rotates 90 degrees to be horizontal with the ground, the work becomes convenient.

The fusion splicing plate 50 is provided on the front surface of both surfaces of the flat plate 30. The fusion splicing plate 50 is used to connect optical fibers with each other using a fusion splicer (not shown). The connected optical fiber is inserted into the fusion splicer arrangement groove 51 provided in the fusion splicing plate 50 and fixed. Since the configuration of the fusion splicing plate 50 is disclosed in the Republic of Korea Utility Model Registration No. 20-0294692, etc. will not be described herein. Since the optical terminal box 100 according to the present invention includes a fusion splicing plate 50, fusion splicing and intermediate branching of the optical fiber are possible. Meanwhile, an adapter fixing member (not shown in FIG. 7B and FIG. 7A) may be installed on the front surface of the flat plate 30 instead of the fusion splicing plate 50 or together with the fusion splicing plate 50. The adapter fixing member 55 is used when a field assembly type connector is used, and the adapter fixing member 55 includes a plurality of slots 56 for fixing an adapter (not shown) for connecting an optical fiber. do.

The splitter module 40 is detachably installed inside the frames 10 and 20.

The splitter module 40 has a conventional configuration and function except that the splitter module 40 is detachably installed inside the frames 10 and 20. That is, the splitter module 40 includes an input adapter connected to the input side optical fiber, an optical splitter connected to the input adapter and branched into a plurality of lines, and an output adapter connected to a line branched from the optical splitter. The input side optical fiber is connected by fusion connection or connected to the input adapter by the input side optical connector, and is branched into a plurality of lines by the optical splitter. The optical splitter serves to branch an optical cable into a plurality of lines. The optical splitter includes a core wire receiving one incoming signal, a core wire sending a plurality of output signals to the opposite side, and an optical jumper cord connected to both sides of the core wire. . At this time, the optical jumper cord connected to one side of the input core wire may be connected to the field assembly connector or the connector to be connected to the input adapter, when fusion connection with the incoming optical cable core wire can be used as it is without any connection, the other side of the core wire A plurality of optical jumper cords connected to are connected to the output adapter.

Since the above configuration and function of the splitter module 40 are conventional, detailed description thereof will be omitted. Compared to a conventional splitter module, the splitter module 40 according to the present invention has a feature of being detachably installed inside the frames 10 and 20. Therefore, the splitter module 40 is easy to add, remove and replace according to the increase and decrease of the use capacity. In addition, the splitter module 40 used can be separated and recycled.

One splitter module 40 may be detachably installed on the flat plate 30, but two or more splitter modules 40 may be detachably installed on the flat plate 30.

Preferably, the splitter module 40 is formed at the distal end of the rotation shaft 44 provided at one end, the connecting piece 43 provided on both sides, and the connecting piece 43, and the fixing groove 33 or the lower splitter module 40 And a protrusion 41 inserted into the coupling groove 42 of the coupling groove 42 and a protrusion 41 of the splitter module 40 formed on the top of the connection piece 43 and stacked thereon.

The rotating shaft 44 is installed to be rotatable in the support groove 34a. The pivot shaft 44 of the lower splitter module 40 is installed in the lower support groove 34a, and the pivot shaft 44 of the upper splitter module 40 is installed in the upper support groove 34a.

The connecting pieces 43 are respectively installed on both side surfaces of the splitter module 40. At the tip of the connecting piece 43, the protrusion 41 and the fastening groove 42 are formed. If the protrusion 41 and the fastening groove 42 are formed in the connecting piece 43, the structure of the main body 46 of the splitter module 40 does not have to be changed in order to form the protrusion 41 and the fastening groove 42. have.

The protrusion 41 provided in the lower splitter module 40 is inserted into the fixing groove 33 so that the lower splitter module 40 is detachably coupled to the flat plate 30, and the splitter module 40 stacked on the upper portion of the lower splitter module 40. The protrusion 41 of the upper splitter module 40 and the lower splitter module 40 are detachably coupled to the fastening groove 42 provided in the lower splitter module 40.

As such, since the upper splitter module 40 and the lower splitter module 40 are detachably coupled to each other, the splitter module 40 may be easily added, removed, or replaced according to the use capacity. In addition, it is advantageous to separate and recycle the already used splitter module 40.

The fastening clip 80 is a member that opens or closes the first and second frames 10 and 20. 11 and 12, the fastening clip 80 includes a clip main body 81, a first shaft 82 provided at one end 81a of the clip main body 81, and a clip main body 81. Protrusion piece 84 formed on the other end 81b of the, and one end is connected to the first shaft 82, and the other end is provided with a connecting member 86 connected to the second shaft 85. The fastening clip 80 has the advantage that the optical terminal box 100 can be opened or closed without a separate tool.

The second shaft 85 is rotatably installed in the fastening hole 14 of the first frame 10, and the protruding piece 84 is a gap 21a formed by the fixing piece 21 of the second frame 20. Can be fitted). Therefore, when one end 81a of the clip main body 81 is pulled outward and one end 81a of the clip main body 81 is rotated outward of the frame 10, 20, the protrusion piece 84 is a gap 21a. The first and second frames 10 and 20 are opened and the first and second frames 10 and 20 are opened to press one end 81a of the clip body 81 to open the clip body. When one end 81a of the 81 is rotated toward the frames 10 and 20, the protruding pieces 84 are fitted into the gaps 21a to close the first and second frames 10 and 20.

Meanwhile, although the plate 30 is installed in the first frame 10 in the above, the plate 30 may be installed in the second frame 20 instead of being installed in the first frame 10. Further, in the above description, the fusion splicing plate 50 and / or the adapter fixing member are installed on the front surface of the flat plate 30, and the splitter module 40 is installed on the rear surface, but the splitter module 40 is provided on the front surface of the flat plate 30. ) May be installed and a fusion splicing plate 50 and / or an adapter fixing member may be installed on the back side. In addition, in the above, the second shaft 85 of the fastening clip 80 is rotatably installed in the fastening hole 14 formed in the first frame 10, and the protruding piece 84 is attached to the second frame 20. Although it has been described that the gap 21a is formed in the gap 21a, the gap 21a (the second shaft 85 is rotatably installed in the second frame 20 and the protrusion piece 84 is formed in the first frame 10) ( The fixing piece 21 may be fitted to the first frame 10). Furthermore, the fixing hole 15, the inlet 12a, the outlet 12b, and the lead portion 13 may be formed in the second frame 20 instead of the first frame 10.

1 is a perspective view showing an optical terminal box according to a preferred embodiment of the present invention.

FIG. 2 is a perspective view illustrating a first frame provided in the optical terminal box of FIG. 1. FIG.

3 is a perspective view illustrating a second frame provided in the optical terminal box of FIG. 1.

4 is a perspective view showing an inlet plug (outlet plug) provided in the optical terminal box of FIG.

5 is a perspective view showing an outlet plug provided in the optical terminal box of FIG.

6 is a perspective view illustrating a clamp provided in the optical terminal box of FIG.

7A is a perspective view illustrating a plate and a fusion spliced plate provided in the optical terminal box of FIG. 1.

Figure 7b is a perspective view showing the adapter fixing member provided in the fusion splicing plate of Figure 7a.

8 is a perspective view illustrating a plate and a splitter module provided in the optical terminal box of FIG. 1.

9 is an exploded perspective view showing a splitter module and a flat plate of FIG. 8;

10 is a perspective view of the combination of FIG.

Figure 11 is a perspective view showing a fastening clip provided in the optical terminal box of Figure 1;

12 is a bottom view showing the fastening clip of FIG.

<Explanation of symbols for the main parts of the drawings>

10: first frame 20: second frame

30: flat plate 40: splitter module

50: fusion splicing plate 80: fastening clip

90: fastener 100: optical terminal box

Claims (9)

A frame in which a storage space is formed; And Optical terminal box comprising a; splitter module detachably installed inside the frame. The method of claim 1, The frame is formed by rotatably coupling the first frame and the second frame, One of the first frame and the second frame is rotatably installed on the plate, One side of the front and back of the plate may be provided with a fusion splicing plate for the fusion splicing of the optical fiber or an adapter fixing member used in the case of using the field-assembled connector, Optical terminal box characterized in that the splitter module is detachably installed on the other side of the front and back. The method of claim 2, Two or more splitter modules are stacked and installed on a flat plate, Splitter module, A protrusion inserted into the fixing groove of the plate; And A fastening groove into which the projections of the splitter module stacked on the upper part are inserted; and the projections provided on the lower splitter module are inserted into the fixing grooves so that the lower splitter module is fixed to the flat plate and the projections of the splitter module stacked on the upper part The optical terminal box, characterized in that the upper splitter module and the lower splitter module is detachably coupled to the fastening groove provided in the lower splitter module. The method of claim 2, Rotating shaft is provided at one end of the splitter module, The plate is provided with a support for rotatably supporting the rotation shaft is an optical terminal box, characterized in that the splitter module can be rotated about the rotation shaft. The method of claim 1, The frame may be formed by rotatably coupling the first frame and the second frame, each of which has an inlet through which the optical cable is drawn in and an outlet through which the optical cable is drawn out, and includes an extracting part through which the output side optical fiber is drawn out. Optical terminal box characterized by. The method of claim 5, An inlet plug blocking said inlet; And And an outlet plug for blocking the outlet. The method of claim 5, The lead portion, A first outlet having a diameter through which the output side optical fiber can pass; And And a second outlet having a diameter through which a connector coupled to the distal end of the optical fiber on the output side can pass. The method of claim 7, wherein And an outlet stopper for blocking the first outlet and the second outlet. The method of claim 1, Splitter module is installed two or more stacked, optical terminal box characterized in that the stacked splitter module is detachably coupled

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