KR101369454B1 - Fiber Coupling Device, and Fusion Type Fiber Optical Connector using The Same - Google Patents

Abstract

A main line connecting device for field assembly of an optical cable and a ferrule for establishing an optical communication, and a fusion type optical connector including the same are provided.
The main line connecting device includes, as an example, a main line connecting means provided to press the main line fusion portion of the ferrule and the optical cable to maintain main line matching; And an assembled body part including a first body means associated with the main line connecting means and a second body means fastened and assembled to the first body means.
The present invention, in the field assembly of the optical matching through the fusion connection of the optical cable and the ferrule, by improving the structure of the main assembly to separate assembly, by providing a component module that is pre-assembled before the field assembly, It is possible to reduce the number of parts to be assembled or the assembly step, in particular to improve on-site assembly, while providing an improved effect of making the optical connection (matching) structure firm, ultimately ensuring the reliability of optical matching.

Description

Fiber Coupling Device, and Fusion Type Fiber Optical Connector using The Same}

The present invention relates to a mains connecting device for the field assembly of the optical fiber cable and ferrule for the optical communication construction, and a fusion type optical connector including the same, more specifically, the optical fiber cable (hereinafter referred to as 'optical cable') and When on-site assembly of optical matching (arrangement connection) through fusion splicing of ferrules, the structure of the arrangement of connection arrangement is improved by separating-assembling type, so that it is possible to provide module parts that are assembled in advance. It is possible to reduce the steps, improve the field assemblage, while strengthening the optical connection (matching) structure, and ultimately to the main line connection device and the fusion type optical connector including the same, which ensures the reliability of the optical matching. It is about.

In recent years, due to the advancement of the optical cable network, the field assembly work of the optical cable is rapidly increasing. For example, instead of the (home) modem line (Internet communication line using a telephone line or a coaxial cable) currently used for Internet communication. Has been replaced by optical communication lines using optical cables. The optical fiber is a fibrous waveguide for the purpose of light transmission, and is usually used in the form of an optical cable that is bound in several strands.

On the other hand, optical cables are not necessarily used for constructing optical communications because they are free from interference and interference by external electromagnetic waves, are difficult to tap, and can accommodate many communication lines in one optical fiber.

By the way, when the optical communication is established, an on-site assembly operation of the optical cable is required. For example, in order to connect the optical cable to the adapter of the optical modem connected to the computer (PC) of each home, the optical fiber (main line) of the optical cable is connected. Use field-mountable optical connectors to connect.

For example, a field assembly optical connector used for field assembly of an optical cable is known, and such an optical connector is used for connecting and connecting an optical cable between an outdoor terminal and an optical modem in each home. .

For example, the optical connector has a length of optical cable in the field between the outdoor terminal and the optical modem in each home according to the field environment, and thus, when the optical cable is assembled in the field, the main line of the optical cable is cut off to connect the optical connector to the optical connector. You are connected.

On the other hand, as an example of the field connection method of such an optical cable, the main line (optical fiber) of the ferrule (optical fiber) and the main line (optical fiber) of the optical cable connected to the home are combined with the adapter to transmit the actual optical signal to the opposite optical cable. There is a mechanical connection method using an on-site assembly type optical connector which connects using a matching gel inside, and makes an optical connector to protect the fusion portion (connection point).

Another method of field connection is to divide the optical jumper cord with the optical connector work on both sides of the optical cable (optical jumper cord cable) in half (called pigtail), and to arrange the optical jumper cord cable and the optical cable lead in the field. A fusion splicer that uses a (fusion splicer) to make a fusion splicing (heat) fusion connection, and when heat is applied to the fused splice connection part, it is reinforced with a shrinking sleeve (tube) and then mounted on a tray such as a terminal box or an outlet to protect the fusion splicing. It is a way.

However, the mechanical connection method for implementing optical matching using a matching gel has many defects in field assembly, large reflection and insertion loss, and frequently occurs after installation, which makes it difficult to stabilize optical communication. Therefore, in recent years, it is a trend to prefer a fusion splicing method which has a reliable main line connection and no optical loss.

In particular, the present invention provides an optical communication speed of 100 Mbps or more, but since the service is provided at an optical communication speed of 1 Gbps or more in the future, the fusion-type connection method with less optical loss is preferred to the mechanical connection method.

For example, in FIG. 1, the fusion splicing state of the ferrule 10 and the optical cable 20 which are fusion-spliced with each other using the conventional fusion splicer (not shown) is shown.

That is, as shown in FIG. 1, the ferrule 10 includes a flange 14 connected to the ferrule body 12 and the ferrule body 12 and the main line 18 (optical fiber) inside the cover 16. It is configured to include.

In addition, the optical cable 20 may have a form in which the coating part 24 having the main line 26 embedded therein is embedded in the protective layer 22a (protective fiber) such as glass fiber inside the outer shell 22.

Accordingly, as shown in FIG. 1, the main line 18 of the ferrule 10 and the main line 26 of the optical cable 20 are fusion-connected through the fusion splicer ('P' portion of FIG. 1).

By the way, the protective tube (sleeve) 30 is surrounded by the ferrule and the optical cable main line fusion-spliced in this way, and when heated, it contracts and reinforces the main line fusion site.

Therefore, the conventional fusion splicing method which protects the fusion | splicing part (connection point) P by using such a protection tube 30 normally uses the heater etc. which are heating means in a state in which it surrounds after ferrule and an optical cable are connected. Since the heat shrink of the protective tube is made, there is a problem that the undercut of the ferrule occurs.

Furthermore, in the case of the conventional fusion splicing method, since it is limited to only using a tube, its service life is not long in actual field use, and there are many problems in durability.

Accordingly, there has been a demand for a fusion type optical connector that realizes a permanent optical matching state while avoiding heat shrinkage protection of the fusion-connected ferrule and the optical cable connection portion.

On the other hand, Patent Application No. 2009-0113036 (patent filed by the same inventor of the present patent application) of another conventional fusion type optical connector for solving the problems caused by the main assembly connection of the fusion method using the protective tube 30 as described above ( It is disclosed in Korean Patent No. 10-1076277.

For example, although not shown in a separate drawing, in the case of another conventional fusion type optical connector disclosed in the above patent application, the fusion spliced main lines of the ferrule and the optical cable are surrounded by a main line connector assembled together as an assembly. It is fixed and protected.

However, such a conventional fusion type optical connector is a way in which the main line connection port is separated up and down, which is very cumbersome in assembling the actual field, and in particular, the arrangement of ferrules and optical cables during the assembly of the connection ports according to the skill of the operator. However, there was a problem that the main line welding portion is damaged.

Accordingly, the applicant of the present invention includes the improved structure of the mains connecting device and the improved main line contact device of the present invention, in order to solve the problem caused by the fusion-type optical connector or the protection tube proposed in the patent application. The fusion type optical connector was proposed.

In particular, the main line connecting device and the improved fusion type optical connector of the present invention described in detail below have not been proposed until now.

Therefore, in the art, in the field assembly of the optical matching through the fusion connection of the optical cable and ferrule, the structure of the mains connecting device is improved in a separate-assembly type, in particular, while providing the pre-assembled module parts, A main line connecting device which reduces the number of parts to be assembled or the assembly step, improves on-site assembling, while strengthening the optical connection (matching) structure, and ultimately ensures reliability of optical matching, and includes the same. A fusion type optical connector is desired.

As an embodiment of the technical aspect for achieving the above requirements, the present invention, the main connection connecting means provided to maintain the main line matching at least by pressing the main line fusion of the ferrule and the optical cable; And an assembled body part including a first body means associated with the main line connecting means and a second body means fastened to and assembled to the first body means.
The first and second body means are assembled through a first cylindrical body integrally formed in one of the first and second connection ports included in the main connection connecting means, and the body assembly means in a state separated from the first cylindrical body. The first and second cylindrical bodies each including a second cylindrical body, and assembled to each other, provide a main connection connecting device provided as a hollow cylindrical body which forms a main compensation space therein.

In addition, as another embodiment of the technical aspect, the present invention, the main line connection means provided to maintain the main line matching by pressing at least the main line fusion of the ferrule and the optical cable; And an assembled body part including a first body means associated with the main line connecting means and a second body means fastened to and assembled to the first body means.
The first and second body means are assembled through a first cylindrical body integrally formed in one of the first and second connection ports included in the main connection connecting means, and the body assembly means in a state separated from the first cylindrical body. A main line connecting device, each comprising a second cylindrical body, further comprising a main line passage provided in the first cylindrical body.

In addition, as still another embodiment of the technical aspect, the present invention provides an apparatus comprising: main line connecting means provided to press main line fusion portions of at least a ferrule and an optical cable to maintain main line matching; And an assembled body part including a first body means associated with the main line connecting means and a second body means fastened to and assembled to the first body means.
The first and second body means are assembled through a first cylindrical body integrally formed in one of the first and second connection ports included in the main connection connecting means, and the body assembly means in a state separated from the first cylindrical body. It includes a second cylindrical body, and the ferrule is inserted into the second cylindrical body while the frame of the fusion type optical connector is assembled to provide a main connection device provided as a ferrule side module parts.

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Further, as another technical aspect, the present invention, the main line connecting device; And

A connecting device assembly tool assembled at both sides of the main connecting device;

It provides a fusion type optical connector comprising a main line connection device configured to include.

According to the present invention, when the on-site assembly of the optical matching through the fusion connection of the optical cable and ferrule, the structure of the main line connection device to be separated-assembled to improve the structure, it is possible to provide a pre-assembled module parts before the field assembly In particular, it is possible to reduce the number of parts and the assembly step to be assembled in the field.

Therefore, the present invention is to improve the field assemblability when the field assembly for the optical communication construction.

As a result, the present invention improves the on-site assembly and makes the optical connection (matching) structure firm, ultimately ensuring the reliability of optical matching.

1 is a schematic diagram showing a state in which the main line of the ferrule and the optical cable is connected in a fusion method using a conventional protective tube.
2 is a perspective view showing a main line connecting device according to the present invention;
FIG. 3 is an exploded perspective view showing the present invention connecting device of FIG.
Figure 4 is a front view showing the present invention main connection device of Figure 2
5 is an exploded perspective view showing a connection state of a ferrule and an optical cable to which main lines are fused using the present invention main line connecting device of FIG. 2;
6 is a perspective view showing a modification of the present invention, the connecting device
Figure 7 is a perspective view showing a component module including a second separated body means of the present invention connection device
FIG. 8 is a perspective view showing an assembled state of a fusion type optical connector including the main line connecting device of the present invention shown in FIGS. 2 to 5.
9 is an exploded perspective view showing the present invention fusion type optical connector of FIG.
10 is a cross-sectional view showing the present invention fusion type optical connector of FIG.
11A to 11I are photographs showing a field assembly step of the fusion type optical connector of the present invention.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will now be described (with reference to the accompanying drawings). However, the embodiments of the present invention can be modified into various other forms, and the scope of the present invention is not limited to the embodiments described below. Further, the embodiments of the present invention are provided to more fully explain the present invention to those skilled in the art. (The shape and size of elements in the drawings may be exaggerated for clarity.)

2 to 6 show the main line connecting device 200 according to the present invention, and FIG. 7 shows the ferrule side module component based on the second body means of the main line connecting device of the present invention. Fig. 10 shows a fusion type optical connector including the main line connecting device of the present invention, and Fig. 11 shows a step-by-step assembly state using a fusion type optical connector of the present invention in a photograph step by step.

However, in the following embodiment, for the sake of understanding, the ferrule and the optical cable are denoted by 100 units, the mains connecting device is denoted by 200 units, the optical connector is denoted by 300 units, the cutter and the fusion splicer (fusion splicer). ) Are differently described and illustrated with reference numerals of 400,500 units, respectively.

First, the main line connecting apparatus 200 according to the present invention is shown based on FIGS. 2 to 5.

For example, the main line connection device 200 according to the present invention has at least these main line fusion portions of the ferrule 110 and the main lines 112 and 126 of the optical cable 120 as an example of the configuration. A main line connecting means 210 provided to stably maintain the main line matching (connection) while pressing the 'P'), and a first body means 240 and the first body means connected to the main line connecting means 210. It may be provided including a prefabricated body portion 230 consisting of a second body means 250 is fastened to the body means 240.

Accordingly, the main line connecting device 200 of the present invention is assembled in a state where main line connecting ports of another conventional fusion type optical connector disclosed in the above-described patent application No. 2009-0113036 are integrally and simply separated up and down. In contrast, the main line connecting device 1 according to the present invention corresponding to the main line connecting port of the conventional connector includes at least main line fusion portion P of the ferrule 110 and the optical cable 120. ) Are composed of first and second body means (240, 250) to be fastened to each other if necessary, the body portion associated with the main line connecting means 210 is provided to maintain a stable connection state, It is to simplify the assembly of parts in actual field assembly.

In addition, by the first and second body means 240 and 250 fastened when necessary in a separate state of the present invention as described above, at least one body means is implemented as a module component (see 200 'of FIG. 7). It is possible to.

Therefore, in the case of the present invention, the (ferrule side) module component 200 'is prepared in advance before field assembly, and in the field, the first and second body means 240 and 250 of the assembled body portion 230 are described in detail below. Since it is easy to fasten and assemble through the body assembly means (see '260' of FIG. 3) to be described in detail, surrounding the fused main line of the ferrule 110 and the optical cable 120 on the adapter side for the optical communication construction It is possible to connect firmly.

Next, as shown in FIGS. 2 to 5, the main line connecting means 210 of the main line connecting device 200 of the present invention is assembled with each other through the fastening means 220, and at least the ferrule and the optical cable. First and second connection ports 212 and 214 for pressing the main line welding portion P to stabilize the connection (fusion) state may be included.

For example, the first and second connectors 212 and 214 are closely assembled to each other through the fastening means 220, and the ferrule and the light passing through the inner side when the first and second connectors are assembled. The main lines 112 and 126 of the cable are fixed while being pressed.

At this time, as shown in Figures 2 to 4, the fastening means 220, which makes it possible to easily assemble the first and second connectors 212,214 in the main assembly connecting device 1 of the present invention, And a hook 222 provided at one of the first and second connectors (that is, the first connector) and a fastening protrusion 224 provided at the other of the first and second connectors (that is, the second connector).

Meanwhile, as shown in FIGS. 3 and 4, the first and second connectors 212 and 214 have a thin thickness and are connected by a connection part 216 (one pair) provided at one corner of the first and second connectors. Before the optical connector assembly, the first and second connectors 212 and 214 are spaced apart from each other.

Therefore, in actual operation, the hook 222 is fastened to the fastening protrusion 224 only by simply pressing the upper first connector 212 above the second connector 214 while the first and second connectors are connected. Since it is caught and supported, the first and second connectors can be easily assembled.

On the other hand, preferably, as shown in Figures 2 and 4, the pressing member receiving grooves (212a) (214a) integrally in the center thereof along the longitudinal direction of the first and second connectors (212, 214) And, thus, main line pressing members 218 may be provided in the pressing member receiving grooves, respectively. In this case, the material of the pressing member may be a pad of rubber having elasticity, but may be used as long as the material does not damage the main line.

Accordingly, the main line pressing members 218 have lengths such as rubber pads, and include a main line fusion portion P of the ferrule and the optical cable, so that a substantial portion of the main line is formed on both sides of the main line fusion portion. Stable protection while pressing during assembly, and its holding force can be stable.

At this time, more preferably, the pressing member 218 of the upper first connector 212 protrudes from the upper surface (plane) of the connector, and the pressing member 218 of the lower second connector 214 is the upper surface of the connector (plane) In the case of providing inward, the pressing members may be closely adhered to each other and there is no gap, and the main welding portion and the main lines of the ferrule and the optical cable may be more stably protected through the close adhesion between the pressing members.

Next, as shown in FIGS. 2 to 5, in the main line connecting device 200 of the present invention, the first and second body means 240 are first and second connecting holes included in the main line connecting means 210. Each of the first cylindrical body 242 integrally formed on one side of the, and may include a second cylindrical body 252 in close contact with the first cylindrical body 242.

Further, more preferably, the first and second cylindrical bodies 242 and 252 may be easily assembled to each other when necessary in a separated state through the body assembly means 260.

For example, as shown in Figures 2 and 3, the body assembly means 260, the fastening opening 264 provided in the extension portion 262 provided in the first cylindrical body 242, and It may be formed of a hook 266 formed on the second cylindrical body 252 and fastened to the fastening opening.

That is, the elongate portion 262 is integrally horizontally extended from both sides of the first cylindrical body 242, the fastening opening 264 is formed through the end thereof, the elongated length of the elongated portion is second Corresponding to the length of the cylindrical body 252, the hook 266 is fastened to the fastening opening 264.

Of course, in the present embodiment, it has been described that the extension portion 262 of the body assembly means 260 is provided on both sides in the first cylindrical body 242, but such an extension portion is provided to the second cylindrical body 252. It is also possible to provide the hook 266 to the first cylindrical body 242.

Accordingly, when the first cylindrical body 242 is in close contact with the second cylindrical body 252, the hook 266 is fastened to the fastening opening 264 of the extension part, and thus, the first and second cylindrical bodies ie, the first and second body means. The fastening assembly of the 240 and 250 is made simply.

However, the first and second body means 240 and 250 of the assembled body portion 230 of the main assembly connecting apparatus 1 of the present invention are in close contact with each other through the body assembly means 260 as shown in FIG. 2. 7 and 10, the main line 112 of the ferrule 110 passes through the inner space of the first and second cylindrical bodies 242 and 254, and thus the cylindrical bodies assembled to each other. The internal space of these can be provided to the main compensation space ('S' of FIG. 10).

That is, as shown in Figure 10, the ferrule 110 is inserted into the rear end of the ferrule assembly 114, the ferrule assembly 114 passes through the inner space of the first and second cylindrical bodies 242, 252, Therefore, the space formed by the assembled lengths of the cylindrical bodies enables the main line of the ferrule to be curved (dashed line portion of the ferrule main line 112 of FIG. 10), and thus, the main line compensation space S of the main line It provides a function to compensate for errors even when connected.

Next, as shown in Figure 6, the first cylinder of the first body means 240 formed integrally with the first connector 212 of the main assembly connecting means 210 of the assembled body portion 230 of the present invention The body 242 may further include a main line passage 244 through which the first cylindrical body is cut.

Accordingly, since the main line through hole 244 allows the main line 112 of the ferrule 110 or the optical cable 120 to pass through as shown in FIGS. 9 and 10, the first main line passages 244 are initially separated from each other. The first and second connection ports (2) are positioned between the second connection ports 212 and 214 and the first cylindrical body 242 fused to be positioned at the center of the first and second connection ports. It will facilitate assembling 212) 214 through the fastening means 220.

Of course, when there is no main line through-hole 244 of the first cylindrical body, as shown in Fig. 11, it can be used in advance on the optical cable 120 side.

Next, in FIG. 7, only the second body means 250 is assembled to the frame 320 before being assembled with the first body means 240 in the main assembly connecting apparatus 200 of the present invention as one module part 200 ′. It shows the use.

That is, as shown in Figures 7 and 9, 10, the second cylindrical body 252 provided in the second body means 250 of the assembled body portion 230 in the main assembly connecting device 1 of the present invention. When the ferrule 110 is inserted into the frame 320 of the fusion type optical connector described in detail below, the ferrule 110 may be used as a single ferrule-side module component 200 ′ as shown in FIG. 11A.

Therefore, such a ferrule-side module component 200 ′ is manufactured by assembling the ferrule 110 with the second body means 250 and the frame 320 in a connector component manufacturing step before the field assembly is manufactured as an independent module component. In fact, the number of parts assembled during actual field assembly is reduced, thus facilitating field assembly.

For example, if the ferrule module part 200 'is pre-loaded and assembled in the field, the number of eight parts assembled at the existing site is reduced to 5 including the module part. Therefore, the field assembly time is also reduced from 4 minutes to 2 minutes. It can be very short to 30 minutes.

3 and 5, in the case of the ferrule 110, a separate ferrule assembly tool 114 is used. For example, the ferrule 110 is inserted into the ferrule assembly tool 114. And the ferrule assembly 114 is inserted into the second cylindrical body 252 of the second body means 250 of the main line connecting device 1 and between the second cylindrical body and the flange 116 of the ferrule assembly. There is a spring 350 is elastically fastened.

Thus, the spring 350 applies a force to push them between the ferrule assembly 114 and the first cylindrical body 242, so that the ferrule 110 inserted into the ferrule assembly 114 is backwards. The force is pushed, and although not shown in the figure, it is possible to maintain close contact between the ferrule 110 and the opposite ferrule (not shown) of the adapter.

That is, the spring 350 maintains close contact between the ferrule 110 and the ferrule in the adapter to reduce the loss of the optical communication and to stably provide the reliability of the optical communication.

As a result, when the second cylindrical body 252 is assembled to the frame 320 of the fusion type optical connector 300, the second cylindrical body 252 is provided as a ferrule-side module component 200 ′ which can be pre-assembled (manufactured) as shown in FIG. 7. Can be.

At this time, as shown in Figure 3 and 5, the inside of the ferrule assembly 114 as shown in Figure 10, although not shown with a separate reference numerals, but the stepped is formed so that the ferrule 110 can be caught and supported Inside the ferrule assembly, protective fibers (unsigned) may be incorporated.

However, the provision of such a ferrule-side module component 200 'results in that the first and second body means 240 and 250 of the assembled body portion 230 of the main assembly connecting apparatus 1 of the present invention have been described above. As such, it is possible, because the body assembly means 260 can be assembled and assembled when necessary in a state separated from each other through the medium.

That is, by implementing the separation-> assembly of the first and second cylindrical bodies of the first and second body means, it is possible to reduce the work step in the field assembly and to shorten the working time.

At this time, such a ferrule-side module part 200 ′ inserts the ferrule assembly tool 114 into which the ferrule 110 is inserted through the spring 350 to the second cylindrical body 252, and inserts them into the frame-plug. Inserted forward to rearward 320, the flange 116 of the ferrule assembly 114 is caught and supported by the inner step (320a of FIG. 10) of the frame-plug 320 while simultaneously supporting the frame-plug 320. The rear fastening protrusion 254 of the second cylindrical body 252 is fastened to the fastening opening 322 of the), and the ferrule cap 118 is fitted to the rear of the frame-plug 320, and as shown in FIG. It may be provided as a ferrule side module component (200 ').

Next, FIGS. 8 to 9 illustrate a fusion type optical connector 300 according to the present invention, which is based on the main line connecting device 200 of the present invention described with reference to FIGS. 2 to 7. As such, it can be provided including a connecting device assembly 310 to be assembled on both sides of the main connection device 200.

At this time, in the optical connector of the present invention, the connector assembly opening 310 is a frame assembled to one side of the second cylindrical body 252 of the second body means 250 included in the main line connecting device 200 ( 320, and a frame-plug 330 assembled to the other side of the second cylindrical body 252.

In addition, as shown in FIGS. 9 and 10, in the case of the fusion type optical connector 300 of the present invention, the frame 320 is assembled to the housing 340, and preferably, of the frame plug 330. One side of the boot 370 may be provided with a cable pressing means 360 configured to press and fix the optical cable 120 passing through the interior of the screw fastening method.

At the same time, as described above, the spring 350 is elastically fastened between the second cylindrical body 252 and the ferrule assembly 114 into which the ferrule 110 is inserted.

Therefore, assembling of a single fusion type optical connector 300 as shown in FIG. 8 is completed, based on the connection (matching) of the main lines of the ferrule 110 and the optical cable 120 and the solid maintenance of the connection. On-site assembly will be done for the construction of optical communication.

For example, referring to the assembling relationship between the main assembly connector 1 and the optical connector parts, first, on one side and the other side (front and rear side) of the second cylindrical body 252 of the second body means of the main assembly connecting apparatus 200. Respective fastening protrusions 254 and 256 are formed integrally on both sides of the outer surface of the cylindrical body, respectively.

Therefore, when the second cylindrical body 252, into which the ferrule assembly 114 is inserted, into which the ferrule 110 is inserted, is inserted into the inside of the frame 320, the one fastening protrusion 254 of the frame 320 is formed. It is fitted to the fastening opening 322 formed through the left and right sides forward.

As a result, the second cylindrical body 252 of the main line connecting device is closely assembled into the frame 320, and the ferrule assembly 114 is caught in the stepped portion of the frame 320 as shown in FIG. 10. The spring 350 is elastically fastened between the flange 116 of the ferrule assembly 114 and the second cylindrical body.

Next, as shown in FIGS. 5 and 9, the fastening protrusion 256 protruding integrally facing both sides of the outer side toward the front side of the second cylindrical body 250 may include first and second cylindrical bodies having a frame-plug ( When inserted into the 330 is inserted into the fastening opening 332 of the frame-plug 330 is fastened.

Accordingly, as shown in FIGS. 9 and 10, the first and second cylindrical bodies 242 and 252 of the main assembly connecting apparatus 1 of the present invention are fastened and assembled to each other by the body assembly means 260, and the second On the rear and front sides of the cylindrical body 252, the frame 320 and the frame plug 330 are respectively assembled intimately by fastening the fastening protrusion and the fastening opening.

At the same time, a fastener 324 protruding from the center side of the frame 330 is inserted into the assembly opening 342 formed in the housing 340 into which the frame 320 is inserted, thereby completing the assembly as shown in FIG. 8. The fusion type optical connector 300 of the present invention can be provided.

8 and 9, a cutout 326 is provided at an upper portion of the front side of the frame 320, and the cutout 326 is a second cylinder that is a second body means 250. The guide 258 protrudes on the upper part of the body 252 while assembling the parts to guide the assembly copper wire of the parts to facilitate the assembly.

Next, as shown in Figures 5, 9 and 10, the fusion type optical connector 300 of the present invention includes a cable pressing means 360 is provided integrally on one side of the frame-plug 330 can do.

That is, the cable pressing means 360, as shown in Figs. 5 and 9, has a pressing plate 362, the both sides are cut, the cable 120 as shown in Figure 10 on the back of the pressing plate 362 Cable pressing protrusions 362a are provided to press the outer shell 122 of the boot. Thus, when the inner screw portion 372 of the boot 370 is fastened to the screw portion 364 provided in the cable pressing means 360, the boot 370 is provided. Presses the pressure plates, so that the sheath 122 of the optical cable 120 can be firmly fixed between the pressing projections, which is a fusion portion P of the main cable 122 and the ferrule main line 112 of the optical cable. ) Position does not flow.

Of course, the ferrules 112 and 122 of the optical cable are firmly pressed as the pressing member 218 during the assembly of the first and second main connectors 212 and 214 of the main connector 1 described above. To be fixed.

In this case, as shown in FIG. 10, referring to FIGS. 3 and 5, the coating part 124 protruding from the outer shell of the optical cable 120 and the main line passes therein is also used in the first and second main line connecting holes 212 and 214. A portion of the pressing member 218 is pressed and fixed.

Next, FIG. 11A to FIG. 11I illustrate the field assembly step using the main line connecting device 200 and the fusion type optical connector 300 of the present invention described above.

First, as shown in FIG. 11A, the ferrule side module part 200 ′ described above in detail is seated on the fixing socket 402 of the cutter 400 to cut the main line 12 of the ferrule 110, and as shown in FIG. 11B. In addition, the optical cable 120 also cuts the main line 122 in the cutter 400 to prepare for fusion.

In this case, as shown in FIGS. 11B and 11C, the cable pressing means 360 integrated with the frame-plug 330 of the optical connector 300 and the boot 370 fastened to the pressing means are connected to the optical cable 120. Put it in advance.

Next, as shown in FIG. 11D, the fixed socket 402 and the optical cable 120 on which the ferrule side module component 200 ′ is mounted are disposed on both sides of the electrode rod 510 of the fusion machine 500, and a high voltage is applied through the electrode rod of the fusion machine. Thermal welding is carried out to perform fusion splicing of the main lines.

Then, as shown in FIG. 11E, as described above, the body assembly means provided to cooperate with the first and second cylindrical bodies in the second body means 250 and the first body means 240 of the ferrule-side module part ( 260, that is, the hook 266 and the fastening opening 264 are fastened, and the main line fusion unit P is assembled with the main line connecting holes 212 and 214 as the fastening means 220 as shown in FIG. 11F. And at least the main line welding portion P of the optical cable is firmly fixed.

Next, as shown in FIGS. 11G to 11I, the frame-plug 330 is fastened to the second cylindrical body 252, and the boot 370 is fastened to the threaded portion 364 of the cable pressing means 360, thereby providing a ferrule and To complete the assembly of the field to establish the optical communication by matching the optical cable arrangement.

Accordingly, as can be seen in the photographs of FIGS. 11A to 11I, in the case of the main line connecting device 200 and the fusion type optical connector 300 of the present invention described above, the bodies of the main line connecting device are separated by body assembly means. Due to the improved construction which is assembled on demand in the state, it is possible to prefabricate the ferrule side module part 200 ', thus making field assembly of optical communication very easy through the matching of the entire ferrule and the optical cable, The work time can be shortened, and as a result, it is possible to establish a very economical optical communication.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be obvious to those of ordinary skill in the art.

110 .... ferrule 112 .... ferrule arrangement
120 .... Optical cable 126 .... Optical cable arrangement
200 .... Coupling device 210 .... Coupling device
212,214 .... Host connection 230 .... Assembled body
240,250 .... first body means 242,252 .... first, second cylindrical body
260. Body assembly means 262
266 .... Hook 300 .... Optical Connector
310 .... junction 320 .... frame
330 ... frame-plug 340 housing
350 .... spring 360 .... cable clamp
370 .... Boot P ....
400 .... The Arrangement Cutting Machine 500 ... The Arrangement Thermal Fusion Machine

Claims (15)

Main line connecting means 210 provided to press the ferrule 110 and the main line fusion portion P of the optical cable 120 to maintain main line matching; And a first body means 240 associated with the main line connecting means 210 and a second body means 250 fastened and assembled to the first body means. Including but not limited to
The first and second body means 240 and 250 may include a first cylindrical body 242 integrally formed with one of the first and second connection holes included in the main line connecting means 210, and the first cylindrical body ( Each of the second cylindrical body 252, which is assembled through the body assembly means 260 in a separated state in 242, respectively,
The first and second cylindrical bodies (242, 254) assembled with each other, the main assembly connecting device provided as a hollow cylindrical body to form a main compensation space (S) inward. Main line connecting means 210 provided to press the ferrule 110 and the main line fusion portion P of the optical cable 120 to maintain main line matching; And a first body means 240 associated with the main line connecting means 210 and a second body means 250 fastened and assembled to the first body means. Including but not limited to
The first and second body means 240 and 250 may include a first cylindrical body 242 integrally formed with one of the first and second connection holes included in the main line connecting means 210, and the first cylindrical body ( Each of the second cylindrical body 252, which is assembled through the body assembly means 260 in a separated state in 242, respectively,
A main line connecting device further comprising a main line passage 244 provided in the first cylindrical body. Main line connecting means 210 provided to press the ferrule 110 and the main line fusion portion P of the optical cable 120 to maintain main line matching; And a first body means 240 associated with the main line connecting means 210 and a second body means 250 fastened and assembled to the first body means. Including but not limited to
The first and second body means 240 and 250 may include a first cylindrical body 242 integrally formed with one of the first and second connection holes included in the main line connecting means 210, and the first cylindrical body ( Each of the second cylindrical body 252, which is assembled through the body assembly means 260 in a separated state in 242, respectively,
The ferrule 110 is inserted into the second cylindrical body 252 and the frame 320 of the fusion type optical connector is assembled to provide a ferrule side module component (200 ') provided. 4. The method according to any one of claims 1 to 3,
The first and second connectors 212 and 214 of the main line connecting means 210 are provided to press the main line fusion unit while being assembled with each other through the fastening means 220. 5. The method of claim 4,
The fastening means 220 includes a hook 222 provided in one of the first and second connectors 212 and 214 and a fastening protrusion 224 provided in the other one,
The first and second connectors 212 and 214 are connected to the connecting portion 216, and include a pressing member 218 provided to press the main line 112 of the ferrule and the main line 126 of the optical cable, including the main line fusion unit. Arrangement connecting device further comprising. 4. The method according to any one of claims 1 to 3,
The body assembly means 260, the fastening opening 264 provided in the extension portion 262 provided in the first cylindrical body 242 or the second cylindrical body 252; And
A hook 266 formed in the second cylindrical body 252 or the first cylindrical body and fastened to the fastening opening;
Arrangement apparatus characterized in that comprises a. The method according to claim 2 or 3,
The first and second cylindrical bodies 242 and 254 assembled to each other are provided as hollow cylindrical bodies that form a main compensation space S therein. The method according to claim 1 or 3,
The main line connecting device further comprises a main line passage 244 provided in the first cylindrical body. 3. The method according to claim 1 or 2,
As the ferrule 110 is inserted into the second cylindrical body 252 provided in the second body means 250, the frame 320 of the fusion type optical connector is assembled and provided as the ferrule side module part 200 '. The main assembly connecting device. 4. The method according to any one of claims 1 to 3,
The ferrule 110 is inserted into the ferrule assembly 114, the ferrule assembly 114 is inserted into the second cylindrical body 252, the spring 350 between the second cylindrical body and the ferrule assembly. A host connection device, characterized in that the intervening. The main line connecting device (200) according to any one of claims 1 to 3; And
Connection device assembly 310 is assembled on both sides of the main connection device 200;
Fusion type optical connector comprising a main line connecting device configured to include. 12. The method of claim 11,
The connecting device assembly 310, the frame 320 is assembled to one side of the second cylindrical body 252 of the second body means 250 included in the main connection device 200; And
A frame-plug 330 assembled to the other side of the second cylindrical body 252;
Fusion type optical connector, characterized in that configured to include. The method of claim 12,
The frame 320 is assembled to the housing 340,
The ferrule 110 is inserted into the ferrule assembly 114, the ferrule insert 114 is inserted into the second cylindrical body 252, the spring between the second cylindrical body 252 and the ferrule assembly 114 Fusion type optical connector, characterized in that 350 is interposed. The method of claim 12,
It is provided integrally on one side of the frame-plug 330, characterized in that it further comprises a cable pressing means 360 configured to press and fix the optical cable 120 passing through the interior when the boot 370 is fastened. Fusion type optical connector. 14. The method of claim 13,
Fastening protrusions 254 fastened to the fastening openings 322 formed on the frame 320 and the fastening openings 332 provided on the frame-plug 330 on one side and the other side of the second cylindrical body 252, respectively. 256 are provided,
Fusion frame optical connector, characterized in that the frame 320 is further provided with a fastening protrusion 324 to be assembled to the assembly opening 342 of the housing 340.

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