KR20130142539A - Manufacture method of optical fiber connector - Google Patents

Abstract

The present invention relates to a method for manufacturing an optical fiber connector, comprising the steps of preparing a clamp ring including a first hard bar and a second hard bar which are divided to be coupled to each other, arranging an optical fiber end of the connected cable and an optical fiber end of a ferrule in the first hard bar, coupling the second hard bar to the first hard bar and covering the optical fiber ends connected to each other.

Description

Manufacture method of optical fiber connector

The present invention relates to a method for manufacturing an optical fiber connector.

Generally, at the end of the optical cable, a connector is mounted. The connector is connected to the terminal box for the optical cable. In addition, the connector may be connected to a connector of a neighboring optical cable to extend the length of the optical cable.

The connector includes a ferrule including a ferrule body formed in a cylindrical shape and an optical fiber projecting to one side through the ferrule body and connected to an optical fiber of a cable, and a protective member surrounding and protecting an optical fiber connecting portion of the optical fiber and the ferrule of the cable. Include.

Typically, the protective member is disposed at a portion where the cable and the optical fiber ends of the ferrule are connected to each other, and then undergoes heat shrinkage. The heat shrinkable protective member fixes the ends of the optical fibers connected to each other. However, when the heat shrinkage of the protective member, not only the heat shrinkage work time is long, but also other operations cannot be performed afterwards until the heat shrinkage work is completed, resulting in a decrease in productivity.

Publication No. 10-2011-0059079 (2011.06.02.) Publication No. 10-2001-0113649 (2001.12.28.)

The present invention provides a method for manufacturing an optical fiber connector that can quickly wrap a connection portion between an optical fiber of a ferrule and an optical fiber of a cable and can securely protect the connection portion of the optical fiber.

According to one or more exemplary embodiments, a method of manufacturing an optical fiber connector includes preparing a clamping ring including a first hard bar and a second hard bar that are divided and coupled to each other. Arranging on the first hard bar, and coupling the second hard bar to the first hard bar and covering the optical fiber ends connected to each other.

In the preparing of the clamping ring, an alignment groove for aligning the optical fiber may be formed on at least one of the surfaces where the first hard bar and the second hard bar are in contact with each other, and at least one of which the alignment groove is not formed. An adhesive layer is formed on the other side, and the first hard bar and the second hard bar may be coupled to each other by the adhesive force of the adhesive layer.

A fixing protrusion and a fixing groove may be formed on a surface where the first hard bar and the second hard bar contact each other, and the fixing protrusion may be inserted into the fixing groove so that the first hard bar and the second hard bar are coupled to each other.

A guide groove and a guide protrusion may be formed at an edge of a surface where the first hard bar and the second hard bar contact each other, and the first hard bar and the second hard bar are aligned and coupled to each other as the guide protrusion is coupled to the guide groove. Can be.

One side of the first hard bar and the second hard bar may be formed with a ferrule retracting alignment portion that is inserted at least a portion of the ferrule, at least a portion of the cable is inserted into the other side of the first hard bar and the second hard bar. The cable entry alignment portion may be formed, and the ferrule entry alignment portion and the cable entry alignment portion may be in communication with the alignment groove.

A hook member having an elastic force may be formed in at least one of the ferrule retracting alignment portions of the first hard bar or the second hard bar, and the hook member may surround at least a portion of the ferrule.

The connector manufacturing method may include a base having a cable settling hole and a ferrule settling hole formed at intervals on an upper surface thereof, and having a hard bar settling hole formed between the cable settling hole and the ferrule settling hole before preparing the clamping ring; The method may further include preparing a jig including a cable fixing cover covering the cable settling hole and placing the first hard bar in the hard bar settling hole.

The method for manufacturing the optical fiber connector includes preparing a fusion device having a ferrule holder and a cable holder disposed between the joints, before preparing the clamping, by placing a ferrule in the ferrule holder to provide an optical fiber end of the ferrule. Placing the cable in the cable holder so that the optical fiber end of the cable is positioned at the junction, and fusion bonding the optical fiber end of the ferrule and the cable optical fiber end located at the junction to each other. It may further comprise the step of.

The optical fiber connector manufacturing method may further include fixing the ferrule disposed on the ferrule holder and the cable disposed on the cable holder before the fusion splicing step.

The method of manufacturing an optical fiber connector may further include separating the ferrule and the cable from the fusion device by using a separation device after the fusion and connection.

In the separating step, the separation device may include a stick and an adhesive member mounted to one side of the stick and coupled to the ferrule.

In the separating step, the separation device is a first gripping portion for gripping at least a portion of the ferrule, a second gripping portion for gripping at least a portion of the cable, and connecting the first gripping portion and the second gripping portion It may include a connecting bar.

The first gripper and the second gripper are each positioned between a first member vertically connected to the connecting bar, a second member hinged to the first member, and between the first member and the second member. It may include an elastic member for imparting an elastic force to narrow between the member and one side of the second member.

The method of manufacturing the optical fiber connector, after covering the end of the optical fiber, wrapping the first and second hard bars with a stopper including an elastic body, inserting the front end of the ferrule and the stopper into the frame and fixed to the frame Enclosing and engaging at least a portion of the cable with a rear end of the stopper, enclosing at least a portion of the stopper with at least a portion of the cable with a boot, inserting the frame into the housing Coupling the cap to a portion of the ferrule protruding out of the frame and the housing.

According to an exemplary embodiment of the present invention, the optical fiber of the ferrule and the optical fiber of the cable are connected to each other by a clamp ring including a first hard bar and a second hard bar having strength, and the connection of the optical fiber is performed even when an impact is applied to the clamping part. Part is not deformed. This is stable from the external requirements of the connected optical fiber.

According to the embodiment of the present invention, since the clamping ring surrounding the connection portion of the optical fiber is bonded to each other by the adhesive layer, fixing projections, fixing grooves, etc., it is possible to minimize the manufacturing work time of the connector than the manufacturing method of combining by the fusion method.

According to an embodiment of the present invention, while the first hard bar is placed in the clamping jig, the end of the connected optical fiber is placed in the first hard bar, and the second hard bar is coupled to the first hard bar, and thus workability due to the coupling of the clamping ring Is improved.

According to an exemplary embodiment of the present invention, an alignment groove for aligning optical fibers is formed in the first hard bar to keep the connected optical fiber straight, thereby stably protecting the connection portion, thereby improving reliability of the product.

According to an embodiment of the present invention, while holding the ferrule located in the ferrule holder and the cable located in the cable holder with the separating device, the connection part of the optical fiber is connected to the first hard bar in a state where the connected portion of the optical fiber is stably connected without being shorted. 2 As the hard bar is wrapped, bad connection of the optical fiber does not occur. This improves the reliability of the product.

1 is an exploded perspective view showing a state in which the clamp ring is coupled to the connected optical fiber end according to an embodiment of the present invention.
FIG. 2 is a perspective view showing a state where an optical fiber end connected to the first hard bar of the clamp ring shown in FIG. 1 is located; FIG.
3 is a perspective view illustrating a state in which a second hard bar is coupled to a first hard bar of the clamp ring illustrated in FIG. 2.
4 is a perspective view showing a connector coupled to the clamp ring shown in FIG.
FIG. 5 is a perspective view illustrating a clamping jig in which a first hard bar of the clamping ring illustrated in FIG. 1 is disposed.
FIG. 6 is a perspective view illustrating a state in which an optical fiber connected to a first hard bar disposed in the clamping jig illustrated in FIG. 5 is disposed; FIG.
7 is a perspective view showing a fusion apparatus for fusion splicing the optical fiber shown in FIG.
FIG. 8 is a perspective view illustrating a state in which a ferrule and a cable are disposed in the fusion apparatus shown in FIG. 7.
9 is a perspective view showing a state in which a portion of the optical fiber is fused by the bonding portion.
FIG. 10 is a perspective view illustrating a state in which a ferrule and a cable located in the fusion device are separated by the separating device shown in FIG. 9; FIG.
FIG. 11 is a perspective view illustrating a state in which a ferrule and a cable coupled to the separation device of FIG. 10 are disposed on a first hard bar; FIG.
12 is a perspective view showing another embodiment of the separation device shown in FIG. 10;
FIG. 13 is a perspective view illustrating a state in which a combined ferrule and a cable coupled to the separating device shown in FIG. 12 are disposed on a first hard bar; FIG.
14 is a perspective view showing a configuration coupled to the connector shown in FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Like parts are designated with like reference numerals throughout the specification.

Next, a method of manufacturing an optical fiber connector according to an embodiment of the present invention will be described with reference to FIGS. 1 to 4.

1 to 4 illustrate a method for manufacturing an optical fiber connector according to an embodiment of the present invention, and a method for manufacturing an optical fiber connector according to an embodiment of the present invention includes a ferrule 10 and a ferrule connected to a terminal box (not shown). It is to manufacture an optical fiber connector for connecting the cable (20) connected to (10) for transmitting a signal.

First, the ferrule 10 includes a cylindrical ferrule body 12 and an optical fiber 11 coupled to the ferrule body 12 and at least partially exposed to the outside. The cable 20 includes a sheath 22 and an optical fiber 21 coupled to the sheath 22 and at least partially exposed to the outside.

Such a method of manufacturing an optical fiber connector includes preparing a clamping (S10), placing an optical fiber (S20), and covering an optical fiber end (S30).

Referring to FIG. 1, the clamp ring 30 prepared in the step S10 of preparing the clamp ring surrounds the exposed ends of the optical fibers 11 and 21, and thus the first hard bar 31 and the second hard bar 32. ).

The first hard bar 31 and the second hard bar 32 are formed to have a predetermined length. In this case, the first hard bar 31 and the second hard bar 32 are formed by dividing a circular columnar bar along the length direction. One surface of the divided first hard bar 31 and the second hard bar 32 is in contact with each other.

An alignment groove 31a is formed in a portion where the first hard bar 31 and the second hard bar 32 contact each other. The alignment groove 31a is formed in the first hard bar 31. However, the alignment groove 31a may be formed in the second hard bar 32.

One end of the clamp ring 30 is formed with a ferrule lead alignment portion 31b, and the other side is formed with a cable lead alignment portion 31c. The ferrule lead alignment portion 31b and the cable lead alignment portion 31c are connected to the alignment groove 31a.

The hook member 32 which has an elastic force is formed in the ferrule pull-in alignment part 31b. The hook member 32 is formed in the curved surface form.

An adhesive layer 35 is formed between the first hard bar 31 and the second hard bar 32 in order to improve the bonding force between the first hard bar 31 and the second hard bar 32. In this case, the adhesive layer 35 may be disposed on the second hard bar 32 on which the alignment groove 31a is not formed and may be coupled to the first hard bar 31. However, the adhesive layer 35 may be disposed on the first hard bar 31. The adhesive layer 35 may be formed of a double-sided tape or a bond. The present invention does not limit the type of adhesive layer 35.

In addition, a fixing protrusion 33a and a fixing groove 33b are formed on a surface where the first hard bar 31 and the second hard bar 32 are in contact with each other. When the first hard bar 31 and the second hard bar 32 are coupled, the fixing protrusion 33a is fitted into the fixing groove 33b. The coupling force of the first hard bar 31 and the second hard bar 32 may be improved by the fixing protrusion 33a fitted into the fixing groove 33b. The fixing protrusion 33a may be coupled to the fixing groove 33b in an interference fit form. However, the fixing protrusion 33a and the fixing groove 33b may be omitted.

In addition, when the first hard bar 31 and the second hard bar 32 are coupled to each other, the first hard bar 31 and the second hard bar 32 may be aligned with each other. Guide edges 34a and guide grooves 34b, which are coupled to each other at intervals along the length direction, are formed at the edges of the contact surfaces of the second hard bars 32. When the first hard bar 31 and the second hard bar 32 are coupled to each other, the guide protrusion 34a is coupled to the guide groove 34b to define the first hard bar 31 and the second hard bar 32. Can be placed in position to engage.

When the clamp ring 30 is prepared, the ends of the optical fibers 11 and 21 are disposed in the alignment groove 31a of the first hard bar 31 in the step S20 of placing the optical fibers.

Referring to FIG. 2, end portions of the optical fibers 11 and 21 are positioned in the alignment groove 31a of the first hard bar 31. And at least a portion of the ferrule body 12 is located in the ferrule lead alignment portion 31b and at least a portion of the cable 20 is disposed in the cable entry alignment portion 31c. In this way, the cable 20 and the ferrule 10 are disposed on the first hard bar 31.

On the other hand, when the ferrule body 12 is located in the ferrule pull-in alignment portion 31b, the hook member 32 is opened and the ferrule body 12 may be inserted into the ferrule pull-in alignment portion 31b. The opened hook member 32 elastically surrounds the circumferential surface of the ferrule main body 12 when the ferrule main body 12 is positioned at the ferrule retracting alignment portion 31b. Accordingly, the ferrule body 12 may be fixed without being shaken by the hook member 32 of the first hard bar 31.

When the ends of the optical fibers 11 and 21 are positioned on the first hard bar 31, the second hard bar 32 is coupled to the first hard bar 31 in a step S30 of covering the ends of the optical fibers.

Referring to FIGS. 2 and 3, the guide protrusions 34a and the guide grooves 34b coincide with each other to couple the first hard bar 31 and the second hard bar 32. The first hard bar 31 and the second hard bar 32 are bonded by the adhesive force of the adhesive layer 535. The first hard bar 31 and the second hard bar 32 coupled to each other are optical fibers 11 and 21. Each end of the c) and at least a portion of the cable 20 and the ferrule body 12 are wrapped.

When the first hard bar 31 and the second hard bar 32 are coupled, the fixing protrusion 33a may be inserted into the fixing groove 33b. As the fixing protrusion 33a is coupled to the fixing groove 33b, the coupling force between the first hard bar 31 and the second hard bar 32 may be improved.

Accordingly, as shown in FIG. 4, at least a portion of the ferrule 10 and the cable 20 are fixed to the clamp ring 30 so that the optical fibers 11 and 21 positioned in the alignment groove 31a (see FIG. 2) move. The connection state can be maintained as it is. Since the clamp ring 30 having the strength surrounds the connected optical fiber 11, 21 (see FIG. 3), the connected optical fiber 11, 21 is not bent. Thereby, the connected optical fiber 11, 21 part can be protected safely from external requirements, such as an impact.

Meanwhile, before preparing the clamping ring, the method may further include preparing a clamping jig in which the first hard bar 31 of the clamping ring 30 is placed (S40) and placing the first hard bar (S50). Can be.

Referring to FIG. 5A, the clamping jig 70 in which the first hard bar 31 is disposed includes a base 71 and a cable fixing cover 72.

The base 71 has a predetermined width. A cable settling hole 71b is formed at one side of the upper surface of the base 71, and a ferrule settling hole 71a is formed at the other side thereof. A hard bar settling hole 71c is formed between the cable settling hole 71b and the ferrule settling hole 71a. The hard bar settling hole 71c connects the cable settling hole 71b and the ferrule settling hole 71a.

Cable fixing cover 72 is hinged to one side of the upper surface of the base (71). The cable fixing cover 72 may cover the cable settling hole 71b. Moreover, a cushion member (not shown) is arrange | positioned in the part which opposes the cable fixing cover 72 and the cable settling hole 71b.

When the clamping jig 70 configured as described above is prepared in the step S40 of preparing the clamping jig, as shown in b) of FIG. 5, in the step S50 of placing the first hard bar, the hard bar mounting hole 71c may be used. ) The first hard bar 31. At this time, the alignment groove 31a of the first hard bar 31 is exposed to the outside. As the first hard bar 31 is positioned in the hard bar settling hole 71c, the first hard bar 31 may be fixed without moving.

Meanwhile, as shown in FIG. 6, when the clamping jig 70 is prepared, the step S20 of disposing the optical fiber and the step S30 of covering the end of the optical fiber may be performed in the clamping jig 70.

6A illustrates a state in which the optical fibers 11 and 21 exposed to the first hard bar 31 placed in the hard bar settling hole 71c of the clamping jig 70 are coupled to each other. 6B shows that the sheath 22 is positioned in the cable settling hole 71b while the exposed optical fibers 11 and 21 are located in the alignment groove 31a of the first hard bar 31. 12 is located in the ferrule set hole 71a. In addition, the cable fixing cover 72 shows a state in which the cable 20 located in the cable settling hole 71b is fixed. In this case, the shock absorbing member may buffer the cable 20. Accordingly, the cable 20 may be fixed to the cable settling hole 71b without moving. 6C shows a state in which the second hard bar 32 is coupled to the first hard bar 31 in which the optical fibers 11 and 21 are located.

As such, when the second hard bar 32 is coupled to the first hard bar 31 while the first hard bar 31 is fixed to the clamping jig 70, the first hard bar 31 does not move. Therefore, the workability of the step S20 of placing the optical fiber may be improved.

However, if the first hard bar 31 and the second hard bar 32 can be easily combined without fixing the first hard bar 31, the step of preparing the clamp jig (S40) may be omitted.

On the other hand, before the step of preparing the clamping, preparing to connect the optical fiber 11 of the ferrule 10 and the optical fiber 21 of the cable 20 (S60), the step of arranging the ferrule and the cable (S70) And, the step of connecting (S80) may proceed.

As shown in FIG. 1, the optical fibers 11 and 21 of the ferrule 10 are exposed to the outside in the ferrule body 12 and the optical fibers 11 and 21 of the cable 20 are exposed to the outside in the sheath. .

In order to connect the optical fiber 11 of the ferrule 10 and the optical fiber 21 of the cable 20 exposed as described above, the welding device 50 is prepared in the step S60 of FIG. 7. Prepare.

The fusion apparatus 50 includes a main body 51, a ferrule holder 52, a cable holder 53, and a junction 54.

The main body 51 is formed in the form of a block, and the inside is empty. The main body 51 is provided with a cover (not shown) for opening and closing the inside. The ferrule holder 52, the cable holder 53, the junction part 54, and a circuit device (not shown) are arrange | positioned inside the main body 51. As shown in FIG. On the other hand, a control unit (not shown) electrically connected to the circuit device is provided outside the main body 51.

The ferrule holder 52 and the cable holder 53 are spaced apart from each other. Arrangement holes 52a and 53a are formed in the upper surface of the ferrule holder 52 and the cable holder 53 along the longitudinal direction, respectively. And cover 52b, 53b is provided in the upper surface of the ferrule holder 52 and the cable holder 53, respectively. Each cover 52b, 53b may cover an upper surface of the ferrule holder 52 and an upper surface of the cable holder 53, respectively.

The junction 54 is located between the ferrule holder 52 and the cable holder 53. The junction 54 is electrically connected to the circuit device. Thereby, the bonding part 54 can bond the bonding object by control of a control part. At this time, the object can be bonded by a thermal fusion method.

Since the detailed configuration of such a fusion device 50 is the same as the fusion device of a known configuration, detailed description thereof will be omitted.

When the fusion apparatus 50 is prepared, as shown in FIG. 8, in operation S70 of arranging the ferrule and the cable, the ferrule 10 is disposed in the ferrule holder 52 as shown in FIG. And as shown in b) of FIG. 8), the cable 20 is arrange | positioned at the cable holder 53. As shown to FIG. At this time, the end portion of the optical fiber 11 of the ferrule 10 and the end portion of the optical fiber 21 of the cable 20 are positioned in the junction portion 54 to be in contact with each other.

When the ends of each of the optical fibers 11 and 21 are in contact with each other, the ferrule 10 disposed in each of the placement holes 52a and 53a by covering the lids 52b and 53b in the step S71 of fixing as shown in FIG. 9. ) And the cable (20) so that it does not move.

When the ferrule 10 and the cable 20 are fixed, the optical fibers 11 and 21 that are in contact with each other are fused by using the junction 54 in the step S80 of being connected. When the optical fibers 11 and 21 are connected to each other by the splicing portion 54 and the signals are applied to the ferrule 10, the signals may be transmitted to the cable 20.

When the optical fiber 11 of the ferrule 10 and the end of the optical fiber 21 of the cable 20 are fused by the junction 54, the ferrule (S90) may be separated as illustrated in FIGS. 10 and 12. 10) and the cable 20 is separated from the fusion device 50 by using the separation device (40, 80).

Referring first to FIG. 10, the separation device 80 includes a stick 81 and an adhesive member 82. The stick 81 is formed in predetermined length. The adhesive member 82 is made of an adhesive material. The adhesive member 82 is attached to one side of the stick 81.

When such a separating device 80 is prepared, each cover 52b, 53b is opened, and the arrangement holes 52a, 53a are opened. Opening of the lids 52b and 53b exposes the cable 20 and the ferrule 10 in which the optical fibers 11 and 21 are connected to each other. In this case, when the adhesive member 82 is positioned on the ferrule body 12, the ferrule body 12 may be attached to the adhesive member 82 by the adhesiveness of the adhesive member 82. The worker grips the sheath 21.

Since the ferrule body 12 is attached to the adhesive member 82 and the sheath 21 is gripped by the worker's hand, lifting the separating device 80 causes the cable 20 and the ferrule 10 to be fused to the fusion device 50. Can be separated).

In this way, the ferrule 10 is attached to the adhesive member 82 and the portion of the coating 21 is held by the operator, so that the connected portions of the optical fibers 11 and 21 can be stably protected and moved.

When the cable 20 and the ferrule 10 are separated from the fusion apparatus 50, portions of the optical fibers 11 and 21 connected to each other as shown in 11 may be stably positioned on the first hard bar 31.

Next, referring to FIG. 12, the separation device 40 includes a first gripping portion 41, a second gripping portion 42, and a connecting bar 43.

The connecting bar 43 has a predetermined length. The first gripping portion 41 is positioned at one side of the connection bar 43, and the second gripping portion 42 is positioned at the other side.

The first gripping portion 41 and the second gripping portion 42 are substantially the same and spaced apart from each other. The first gripping portion 41 and the second gripping portion 42 include first members 41a and 42a, second members 41b and 42b, and elastic members 41c and 42c, respectively.

The first members 41a and 42a are located at both sides of the connecting bar 43. The first members 41a and 42a protrude perpendicularly from the connecting bar 43. The first members 41a and 42a are bent in combination.

The second members 41b and 42b face the first members 41a and 42a. The second members 41b and 42b are formed in a shape symmetrical with the first members 41a and 42a.

The lower ends of the first members 41a and 42a and the second members 41b and 42b are hinged to each other. The first members 41a and 42a and the second members 41b and 42b may move with respect to the hinge.

The elastic members 41c and 42c are disposed at the upper ends of the first members 41a and 42a and the second members 41b and 42b to be positioned between the first members 41a and 42a and the second members 41b and 42b. do. The elastic members 41c and 42c impart an elastic force so that the upper ends of the first members 41a and 42a and the second members 41b and 42b are far from each other. The second members 41b and 42b may be rotated based on the hinge by the elastic force of the elastic members 41c and 42c.

Lower ends of the first members 41a and 42a and the second members 41b and 42b which are portions under the hinge may be in contact with each other. Meanwhile, when the upper end portions of the first members 41a and 42a and the second members 41b and 42b are pressed in a direction facing each other, the elastic members 41c and 42c may be compressed. In addition, lower ends of the first members 41a and 42a and the second members 41b and 42b which are lower portions of the hinge may be opened.

Opening the lower ends of the first members 41a and 42a and the second members 41b and 42b to open the first members 41a and 42a and the second members 41b and 42b of the first and second grippers 41 and 42. Place the ferrule 10 and the cable 20 between them. In this case, the ends of the optical fibers 11 and 21 exposed to the outside of the ferrule 10 and the cable 20 may be in contact with each other. In addition, since the holding portions 41 and 42 fix the ferrule 10 and the cable 20, the optical fibers 11 and 21 whose ends are in contact with each other can be kept in contact with each other without being shaken.

The ferrule body 12 is gripped by the first gripper 41 and the cover 21 is gripped by the second gripper 42 in the step S90 of separating using the connection device 40. When the holding portions 41 and 42 hold the ferrule body 12 and the sheath 21, the connecting device 40 is lifted up to separate the ferrule 10 and the cable 20 from the fusion device 50.

When the ferrule 10 and the cable 20 are separated, the operator can move while stably protecting the portions of the optical fibers 11 and 21 connected to each other.

When the cable 20 and the ferrule 10 are separated from the fusion device 50, portions of the optical fibers 11 and 21 connected to each other as shown in 13 may be stably positioned on the first hard bar 31.

In this way, the ferrule 10 is fixed to the first holding portion 41, the cable 20 is fixed to the second holding portion 42 so that the ends of the optical fibers (11, 21) are not aligned and connected in a straight line. As the first hard bar 31 and the second hard bar 32 having strengths surround the portions of the optical fibers 11 and 21 connected in the state, the connected portions of the optical fibers 21 are not deformed.

As a result, as shown in FIG. 4, the optical fiber connector capable of stably keeping the optical fiber connecting portion of the ferrule 10 and the optical fiber connecting portion of the cable 20 with the clamp ring 30 having strength can be manufactured.

When the ends of the optical fibers 11 and 21 connected as described above are protected by the clamping ring 30, as shown in FIG. 14, wrapping with a stopper (S101), fixing to a frame (S102), and wrapping with a holder are combined. The step S103, the step of wrapping the boot (S104), the step of combining the frame (S105), and the step of combining the cap (S106) may be further performed. However, the above step may be omitted if the optical fibers 11 and 21 are distributed in the protected state by the clamping ring 30.

In the step S101 of wrapping the stopper, the clamp ring 30 may be wrapped with the stopper 61. At this time, the locking step 61a is formed at the tip of the stopper 61. An elastic body 61b is located inside the stopper 61. One side of the elastic body is in contact with the ferrule 10 and the other side is in contact with the inside of the stopper 61. The elastic body elastically supports the stopper 61 in the direction of the cable 20.

In step S102 of fixing to the frame, the ferrule 10 to which the stopper 61 is coupled may be inserted into the frame 62 through which the inside is penetrated along the longitudinal direction. At this time, at least a portion of the stopper 61 is inserted into the frame 62 and the locking jaw 61a is caught by a step (not shown) formed inside the frame 62. The front end of the ferrule 10 may protrude outside the frame 62. On the other hand, the locking jaw (61a) is in close contact with the step by the elastic force of the elastic body (61b) can be fixed to the inside of the frame 62 without play.

In step S103 of wrapping and coupling the holder, at least a portion of the rear end of the stopper 61 and the cable 20 may be wrapped by the holder 53. The holder 53 wraps the contact portion between the stopper 61 and the cable 20 so that the contact portion is not bent. Meanwhile, an aramid yarn (not shown) may be formed at the portion where the stopper 61 and the cable 20 are in contact with each other before the holder 53 is coupled to provide tension and provide flexibility in the longitudinal load. The portion where the stopper 61 and the cable 20 come into contact with the aramid yarn and the holder 53 can be stably protected from external requirements.

In step S104 of wrapping the boot, the stopper 61, the holder 53, and a portion of the cable 20 may be wrapped with the boot 64. Boot 64 surrounds the stopper 61, holder 53, and cable 20 to protect them from external requirements.

In step S105 of combining the frames, the frame 62 to which the ferrule 10 is coupled is inserted into the housing 65 that is inserted into the adapter (not shown). A coupling jaw and a coupling groove (not shown) are formed at a portion where the frame 62 and the housing 65 contact each other. Since the engaging jaw is coupled to the engaging groove, the frame 62 inserted into the housing 65 is not easily separated from the housing 65. Meanwhile, the front end portion of the ferrule 10 protruding out of the frame 62 may protrude out of the housing 65.

In step S106 of coupling the cap, the cap 66 is coupled to the tip of the ferrule 10 protruding out of the housing 65 to stably protect the tip of the protruding ferrule 10 from external requirements.

In the connector of the present invention configured as described above, the clamp ring 30 surrounding the connection portions of the optical fibers 11 and 21 is coupled to each other by an adhesive layer 535, fixing protrusions 33a, fixing grooves 33b, and the like. The manufacturing time of the connector can be minimized more than the manufacturing method.

In addition, a portion of the optical fiber (11, 21) connected to each other is wrapped around the clamp ring 30 having a strength, one side of the clamp ring 30 is coupled to a portion of the ferrule body 12, the other side to a portion of the sheath 21 Because of the coupling, even if an impact is applied to the clamp ring 30 portion, the connected portions of the optical fibers 11 and 21 are not deformed. This is stable from the external requirements of the connected optical fiber. Stability of the product can be improved by the stability. In addition, since the clamp ring 30 is coupled to the ferrule body 12 and the cover 21, the clamp ring 30 may be stably fixed.

Although the preferred embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of rights.

10: ferrule 11: optical fiber
12: ferrule body 20: cable
21: Fiber Optic 21: Cloth
30: clamping ring 31: first hard bar
32: second hard bar 31a: alignment groove
31b: Ferrule Entry Alignment 31c: Cable Entry Alignment
32: hook member 33a: fixing projection
33b: fixing groove 34a: guide protrusion
34b: guide groove 35: adhesive layer
40: separating device 41: first gripping portion
42: second gripping portion 41a, 42a: first member
41b, 42b: second member 41c, 42c: elastic member
43: connecting bar 50: fusion device
51: main body 52: ferrule holder
53: cable holder 52a, 53a: arrangement hole
52b, 53b: cover 54: junction
61: stopper 61a: locking jaw
61b: elastomer 62: frame
53: holder 64: boot
65: housing 66: cap
70: clamping jig 71: base
71a: ferrule settling hole 71b: cable settling hole
71c: hard bar set-hole 72: cable retention cover
80: disconnecting device 81: stick
82: adhesive member

Claims (14)

Preparing a clamping ring including a first hard bar and a second hard bar that are divided and coupled to each other,
Placing the optical fiber ends of the cables and ferrules of the ferrules connected to each other on the first hard bar, and
Coupling the second hard bar to the first hard bar and covering the optical fiber ends connected to each other;
Optical fiber connector manufacturing method comprising a. In claim 1,
In the step of preparing the clamping ring,
At least one of the surfaces in which the first hard bar and the second hard bar is in contact with each other is formed with an alignment groove for aligning the optical fiber, an adhesive layer is formed on at least one other surface where the alignment groove is not formed, The first hard bar and the second hard bar are bonded to each other by the adhesive force of the adhesive layer. 4. The method according to any one of claims 1 to 3,
The surface of the first hard bar and the second hard bar is in contact with each other is formed with a fixing protrusion and a fixing groove, the fixing protrusion is inserted into the fixing groove is coupled to each other the first hard bar and the second hard bar. 4. The method of claim 3,
The edges of the surface where the first hard bar and the second hard bar are in contact with each other are formed with a guide groove and a guide protrusion, and the first hard bar and the second hard bar are aligned with each other while the guide protrusion is coupled to the guide groove. Method of manufacturing fiber optic connector. In claim 1,
One side of the first hard bar and the second hard bar is formed with a ferrule pull-in alignment portion is inserted at least a portion of the ferrule, and at least a portion of the cable is inserted into the other side of the first hard bar and the second hard bar. And a cable entry alignment portion, wherein the ferrule entry alignment portion and the cable entry alignment portion communicate with the alignment groove. The method of claim 5,
At least one of the ferrule retracting alignment portions of the first hard bar or the second hard bar is provided with a hook member having an elastic force, and the hook member surrounds at least a portion of the ferrule. In claim 1,
Before preparing the clamping ring,
A clamping jig including a base having a cable settling hole and a ferrule settling on the upper surface, a base having a hard bar settling hole formed between the cable settling hole and the ferrule settling hole, and a cable fixing cover covering the cable settling hole. To prepare and
Placing the first hard bar in the hard bar settling hole
Further comprising
A method for manufacturing a fiber optic connector. In claim 1,
Before preparing the clamping ring,
Preparing a welding device in which the ferrule holder and the cable holder are disposed with the junction interposed therebetween,
Placing a ferrule in the ferrule holder to position the optical fiber end of the ferrule to the splice, and placing a cable in the cable holder to position the optical fiber end of the cable to the splice; and
Fusion bonding the optical fiber ends of the ferrules and the cable optical fiber ends located at the junctions to each other
Further comprising
A method for manufacturing a fiber optic connector. 9. The method of claim 8,
Before the fusion and connection step,
And fixing the ferrule disposed in the ferrule holder and the cable disposed in the cable holder. The method of claim 9,
After the fusion step of connecting,
Separating the ferrule and the cable in the welding device using a separating device
Further comprising
A method for manufacturing a fiber optic connector. 11. The method of claim 10,
In the separating step, the separation device is
Stick and
An adhesive member attached to one side of the stick and coupled to the ferrule disposed in the welding device
Containing
A method for manufacturing a fiber optic connector. 11. The method of claim 10,
In the separating step, the separation device is
A first gripping portion gripping at least a portion of the ferrule,
A second gripping portion for gripping at least a portion of the cable, and
Connecting bar connecting the first holding portion and the second holding portion
Containing
A method for manufacturing a fiber optic connector. The method of claim 12,
The first gripping portion and the second gripping portion, respectively
A first member vertically connected to the connection bar;
A second member hinged to the first member, and
An elastic member positioned between the first member and the second member and applying an elastic force to narrow the side between the first member and one side of the second member;
Containing
A method for manufacturing a fiber optic connector. In claim 1,
After covering the end of the optical fiber,
Wrapping the first and second hard bars with a stopper including an elastic body,
Inserting the front end of the ferrule and the stopper into the frame to fix the frame to the frame;
Wrapping at least a portion of the rear end of the stopper and the cable with a holder and coupling the same;
Wrapping at least a portion of the stopper and at least a portion of the holder and the cable with a boot
Inserting the frame into the housing and engaging; and
Coupling a cap to a portion of the ferrule protruding out of the frame and the housing;
Further comprising
A method for manufacturing a fiber optic connector.

Images