WO2015053467A1

WO2015053467A1 - Field assembly type optical connector

Info

Publication number: WO2015053467A1
Application number: PCT/KR2014/006991
Authority: WO
Inventors: 김경수; 윤성진; 김태준; 정휘영
Original assignee: 고려오트론(주)
Priority date: 2013-10-10
Filing date: 2014-07-30
Publication date: 2015-04-16
Also published as: KR101469804B1

Abstract

The present invention relates to a field assembly type optical connector which connects optical fibers to each other only using an optical connector even without a separate assembly jig in a field, thereby providing a stable coupling force to an optical fiber. The field assembly type optical connector according to the present invention comprises a connector body and a splice unit. The connector body has a hollow part penetrating both sides, and an opening which has an upper portion into which a cover is inserted or from which the cover is separated and a lower portion having a push button integrally formed therewith to be movable into the hollow part. Further, the splice unit comprises a splice member installed while being inserted into the hollow part of the connector body, and a cover detachably coupled to the splice member through the opening of the connector body. The push button upwardly pushes the cover coupled to the splice member to space the cover apart from the splice member.

Description

Field Assembly Optical Connectors

The present invention relates to an optical connector, and more particularly, to a field assembly type optical connector that can interconnect optical fibers with only the optical connector even without a separate assembly jig in the field.

In general, the optical connector aligns the ferrule in which the core of the optical fiber is inserted in the factory so that the optical fiber is aligned to the optical center in the factory, and minimizes the optical loss through the epoxy bonding and the end face polishing process. By attaching an optical connector, a finished product called a patch cord has been used for laying a fiber. For example, LC, ST, FC and SC optical connectors are used.

Since patch cords are manufactured at the factory in the form of finished products having a certain length according to the specified parameters, the connection between optical cables in optical distribution boards, optical terminal boxes, optical intermediate switching boxes, and the like, which requires connection and disconnection between optical transmission equipment and optical fiber cables, The connection between the optical distribution panel and the optical transmission device and the connection between the optical transmission devices faced limitations in length.

Therefore, field-assembled optical connectors are used that can be easily assembled in the field by converting the optical connectors provided on both sides of the patch cord to be assembled, and to obtain a patch cord of a desired length.

Korean Patent Laid-Open Publication No. 2009-0065485 discloses a field connectable optical fiber connector having a splice element. The disclosed connector is a housing configured to mate with a receptacle and a collar body disposed within the housing, wherein the collar body includes a fiber stub disposed within a first end portion of the collar body. The fiber stub comprises a first optical fiber. The first optical fiber is mounted in the ferrule and has a first end and a second end adjacent the end face of the ferrule. The collar body further includes a mechanical splice device disposed in the splice device receiving portion of the collar body. The mechanical splice device has a collar body configured to splice the second end of the fiber stub to the second optical fiber, and a fiber jacket for holding the collar body in the housing and clamping the jacket portion surrounding the portion of the second optical fiber in operation. A backbone comprising a clamping portion, and a boot that can be attached to a portion of the backbone and that actuates the fiber jacket clamping portion of the backbone when attached to the backbone.

The optical connector configured as described above can be assembled in the field, but the mechanical splice device has a structure for clamping the optical core by using a tightening force, so the coupling force is relatively weak, and there is a problem in that the coupling is not made smoothly.

In addition, an optical connector adapted to be assembled is disclosed in Korean Patent Publication No. 10-0507543. Such an optical connector includes a housing, a plug movably inserted into and fixed to the housing, a core alignment member movably inserted into the plug, a fixing member surrounding the portion of the core alignment member and inserted into the plug, and inserted into the fixing member. A spring for supporting the core alignment member by elastic force, a protective cover surrounding and sealing the free end of the fixing member, and an optical fiber inserted into the fixing member to be engaged with the core alignment member to be fixed and drawn out of the protective cover to the core alignment member. The guide optical fiber connecting member and a fastening member fixed to the optical fiber connecting member by fastening the optical fiber introduced from the protective cover while being coupled to or separated from the optical fiber connecting member in the form of a clip.

In the optical connector, since the core of the optical fiber inserted into the optical fiber connection member is fitted to the core alignment member without a separate guide means, it is difficult to accurately fit the core of the optical fiber to the core insertion hole of the core alignment member. That is, it was very difficult to accurately insert a core having a diameter of approximately 125 μm without a separate guide means into a core insertion hole having a diameter corresponding to the diameter of the core. Thus, there is a problem in that the core is not easily connected in the core insertion hole of the core alignment member.

Accordingly, it is an object of the present invention to provide a field assembly type optical connector that is easy to work while two optical fibers that are to be connected can be accurately connected during assembly of the optical connector.

Another object of the present invention is to provide a field assembly type optical connector that can easily remove the cover fitted to the splice member only by the optical connector even without a separate assembly jig in the field.

Still another object of the present invention is to provide a field assembly type optical connector which can stably fix two optical fibers inserted into a splice member by increasing the coupling force between the splice member and the cover.

In order to achieve the above object, the present invention provides a field assembly optical connector comprising a connector body and a splice unit. The connector body has a hollow portion penetrated at both sides, an opening is formed in the upper portion of which the cover can be inserted or detached, and a push button movable into the hollow portion is integrally formed at the lower portion of the opening. The splice unit includes a splice member inserted into a hollow portion of the connector body and a cover detachably coupled to the splice member through an opening of the connector body. At this time, the push button pushes the cover coupled to the splice member to be lifted with respect to the splice member.

In the field assembled optical connector according to the present invention, the splice member includes a ferrule and a core mount. The ferrule is supported on the one side of the first core of the first optical fiber. The core mounting portion is formed with a core insertion hole into which the ferrule is coupled to one side and a second core of the second optical fiber is inserted into the other side, and communicates with the core insertion hole and spools the first and second cores of the first and second optical fibers. V-shaped grooves for rice are formed, and a plurality of fitting holes are formed on both sides of the V-shaped grooves.

In the field assembly optical connector according to the present invention, the cover includes a cover body and a plurality of fitting legs. The cover body covers the core mounting portion in which the v-shaped groove is formed. The plurality of fitting legs are formed to protrude to correspond to the plurality of fitting holes, respectively, in the lower portion of the cover body, and are respectively inserted into the plurality of fitting holes to cover the cover body with the core mounting portion in which the V-shaped groove is formed. It is coupled to support the end of the first and second cores supported in the v-groove in close contact with the cover body.

In the field assembly type optical connector according to the present invention, the plurality of fitting legs is a plurality of first fitting legs arranged on one side of the lower portion of the cover body, and the other side of the lower cover body facing the first fitting leg It includes a plurality of second leg arranged in the. In this case, the widths of the first and second fitting legs are increased downward from the cover body, and the widths of the lower parts of the first and second fitting legs are located on both sides facing the V-shaped grooves. Wider than the width between the insertion holes.

In the field assembly type optical connector according to the present invention, the lower end of the plurality of fitting holes, respectively, the locking step is formed to be inclined outward with respect to the inner peripheral surface of the fitting hole. Each of the plurality of fitting legs of the cover, the outer side of the engaging hook is caught on the locking jaw is formed corresponding to the inclined surface of the locking jaw.

In the field assembly type optical connector according to the present invention, a pair located on the outside of the plurality of fitting legs of the cover has a protrusion extending below the coupling hook. In this case, the push button of the connector body is formed at a position corresponding to the protrusion, and pushes the protrusion protruding below the fitting hole of the core mounting portion upward to separate the cover coupled to the core mounting portion from the core mounting portion.

In the field assembly type optical connector according to the present invention, the fitting formed with the protrusion is formed on the opposite side to which the ferrule is coupled. The push button is formed in the connector body on the opposite side to which the ferrule is coupled.

In the field assembly type optical connector according to the present invention, the push button is a push plate protruding into a push space connected to the hollow portion in the lower portion of the connector body, a pair of the fitting leg on the upper surface of the push plate It is formed to protrude toward the protrusion of the includes a pair of pushing projections for pushing the protrusion.

The field assembly type optical connector according to the present invention may further include a housing to which the connector body is coupled, and an opening formed at the bottom thereof to expose the push button.

And the field assembly optical connector according to the present invention may further include a housing, a clamping member and a boot. The housing is coupled to the connector body to support the splice unit and to support the ferrule of the splice unit to protrude to the front side. The clamping member is coupled to the connector body to elastically support the splice unit with respect to the housing and has a clamping portion. The boot is coupled to the clamping member to provide a clamping force of the jacket portion of the second optical fiber.

In the field assembly type optical connector according to the present invention, since the push button for lifting the cover is integrally formed in the lower portion of the connector body, the cover fitted to the splice member can be easily mounted even without a separate assembly jig in the field. Can be excited

In addition, since the inclined locking jaw is formed in the lower portion of the fitting hole formed in the splice member, and the fitting leg formed in the lower portion of the cover so as to be caught by the inclined locking jaw is formed between the splice member and the cover. It is possible to stably fix two optical fibers inserted into the splice member by increasing the bonding force.

In addition, the cover is formed in such a way that the width between the fitting legs increases as the fitting legs formed on both sides of the lower portion go down. As a result, the fitting leg inserted into the fitting hole of the splice member is tightly coupled to the fitting hole, and the engaging hook passing through the fitting hole is caught by the inclined locking jaw, so that the fitting leg inserted into the fitting hole is A downward force acts along the surface of the picture. Therefore, the bonding force between the splice member and the cover can be improved.

1 is an exploded perspective view of a field assembly optical connector according to an embodiment of the present invention.

FIG. 2 is a partial cross-sectional view showing the field assembly optical connector of FIG. 1. FIG.

3 is an exploded perspective view illustrating the splice unit of FIG. 1.

4 is a side view showing the cover of the splice unit of FIG.

5 is a cross-sectional view taken along line 5-5 of FIG.

6 is a partially cutaway perspective view showing a push button of the connector body of FIG. 1.

7 is a cross-sectional view illustrating a state in which the field assembly optical connector of FIG. 1 is assembled.

8 is a cross-sectional view illustrating a state in which a cover coupled to a splice member by pushing the push button of FIG. 1 is spaced apart from the splice member.

In the following description, only parts necessary for understanding the embodiments of the present invention will be described, it should be noted that the description of other parts will be omitted so as not to distract from the gist of the present invention.

The terms or words used in the specification and claims described below should not be construed as being limited to the ordinary or dictionary meanings, and the inventors are appropriate to the concept of terms in order to explain their invention in the best way. It should be interpreted as meanings and concepts in accordance with the technical spirit of the present invention based on the principle that it can be defined. Therefore, the embodiments described in the present specification and the configuration shown in the drawings are only preferred embodiments of the present invention, and do not represent all of the technical idea of the present invention, and various equivalents may be substituted for them at the time of the present application. It should be understood that there may be variations and variations.

Hereinafter, with reference to the accompanying drawings will be described in detail an embodiment of the present invention.

1 is an exploded perspective view of a field assembly optical connector according to an embodiment of the present invention. FIG. 2 is a partial cross-sectional view showing the field assembly optical connector of FIG. 1. FIG.

1 and 2, the field assembly optical connector according to the present embodiment includes a connector body and a splice unit. The connector body has a hollow portion penetrated to both sides, an opening is formed in the upper portion of which the cover can be inserted or detached, and a push button movable into the hollow portion is integrally formed in the lower portion of the opening. The splice unit includes a splice member inserted into and installed in the hollow portion of the connector body, and a cover detachably coupled to the splice member through an opening of the connector body. At this time, the push button pushes the cover coupled to the splice member upward and lifts the cover against the splice member.

In addition, the field assembly optical connector according to the present embodiment may further include a clamping member, a housing, and a boot.

Each configuration of the field assembly type optical connector according to the present embodiment will be described in detail as follows.

The housing 71 has a connector body 20 coupled thereto, and has an opening 73 at which a push button 23 is exposed. In addition, the housing 71 is coupled to the connector body 20 to support the splice unit 40, and supports the ferrule 31 of the splice unit 40 to protrude to the front. The ferrule 31 exposed out relative to the housing 71 may be protected by a protective cap 90.

The connector body 20 is coupled by the clamping member 60 and the fastening means 80 to support the splice unit 40, and the stepped hollow portion 21 in which the ferrule 31 protrudes on the front is long. The opening 22 which is formed in the direction and communicates with the hollow part 21 is formed in the outer peripheral surface. A push button (23 of FIG. 6) is formed below the connector body 20, and the push button 23 will be described later.

As shown in FIGS. 3 to 5, the splice unit 40 includes the first core 101 of the first optical fiber 100 and the second core of the second optical fiber 200 supported by the ferrule 31. To splice 201. 3 is an exploded perspective view showing the splice unit 40 of FIG. 4 is a side view illustrating the cover 41 of the splice unit 40 of FIG. 3. And FIG. 5 is a cross-sectional view taken along line 4-4 of FIG. 3.

The splice unit 40 is formed with a core mounting portion 34 whose bottom surface is located on the center of the splice member 30 in the longitudinal direction on the outer peripheral surface of the splice member 30. The bottom surface of the core mounting portion 34 has a smooth surface, and the bottom surface has a V type for splicing the core 101 of the first optical fiber 100 and the second core 201 of the second optical fiber 200. The groove part 33 is formed. The V-shaped groove portion 33 forms a V shape in a cross section perpendicular to the length, and the width of the upper side is formed to be smaller than the diameter of the first and

second cores

101 and 201 so that the first and the first It is preferable to allow the two

cores

101 and 201 to be mounted on the V-groove 33. And the extension part 35 is formed in the site | part corresponding to the ferrule 31 of the splice member 30, The core part 35 which is extended from the V-shaped groove 33 is formed in the extension part 35. FIG. . The core insertion hole 32 is preferably the same as the diameter of the first core 101 so that the gap does not occur during insertion. In addition, the inlet of the core insertion hole 32 formed in the extension part 35 is preferably formed with a core guide part 32a expanded in a funnel shape so that the second core 201 can be smoothly inserted. The inlet side of the v-shaped groove portion 33 corresponding to the core insertion hole 32 is preferably extended to the core insertion hole 32 so that the second core 201 can be smoothly inserted.

In addition, the core mounting portion 34 is coupled by the coupling member 50 to the cover 41 for gripping the first and

second cores

101 and 201 connected thereto. The lower surface of the cover 41 is formed in a plane parallel to the bottom surface of the core insertion portion 34 to press the first and

second cores

101 and 201 supported by the v-shaped groove portion 33. But is not limited thereto.

Coupling member 50 is for coupling the splice member 30 and the cover 41, the fitting holes 51 are formed on both sides of the V-shaped groove 33 formed in the splice member 30, Coupling hooks 52 are formed on the fitting legs 53 inserted into the fitting holes 51 at both sides of the cover 41 of the portion corresponding to the hole 51. The fitting leg 53 has a length sufficient to be caught by the end side edge of the fitting hole 51 formed in the splice member 30.

At this time, the plurality of fitting holes 51 are formed to be arranged on both sides with the V-shaped groove 33.

The plurality of fitting legs 53 are formed on the lower surface of the cover 41 and are formed to correspond to the plurality of fitting holes 51, respectively. The cover 41 includes a cover body 43 and a plurality of fittings (53). The cover body 43 covers the core mounting portion 34 in which the v-shaped groove portion 33 is formed. The plurality of fitting legs 53 protrude to correspond to the plurality of fitting holes 51 at the lower portion of the cover body 43, respectively. The plurality of fitting legs 53 are respectively inserted into the plurality of fitting holes 51 to couple the cover body 43 to the core mounting portion 34 on which the V-shaped grooves 33 are formed, thereby to the V-shaped grooves 33. End portions of the supported first and

second cores

101 and 201 are supported in close contact with the cover body 43.

The plurality of fitting legs 53 includes a plurality of first fitting legs 53a and a plurality of second fitting legs 53b. The plurality of first fitting legs 53a are arranged at one side of the lower portion of the cover body 43. The plurality of second fitting legs 53b are arranged at the other side of the lower cover body 43 facing the first fitting legs 53a.

At this time, the width (a) (b) between the first and second fitting legs (53a, 53b) is the cover body so that the plurality of fitting legs (53) can be inserted into each of the plurality of fitting holes (51) to be fitted Incremental down from (43). The width b of the lower portions of the first and second

fitting legs

53a and 53b is wider than the width between the fitting holes 51 positioned at both sides of the v-shaped groove 33.

On the inner circumferential surface of the fitting holes 51, the lower ends of the fitting holes 51 are respectively provided so that the plurality of fitting legs 53 can be stably inserted and fitted into the plurality of fitting holes 51, respectively. The locking step 54 is formed to be inclined outwardly. In addition, each of the plurality of fitting legs 53, the engaging hook 52 that is caught on the locking jaw 54 on the outside of the lower portion is formed to correspond to the inclined surface of the locking jaw 54.

As such, the inclined locking jaw 54 is formed in the lower portion of the fitting hole 51 formed in the splice member 30, and the fitting formed in the lower portion of the cover 41 so as to be caught by the inclined locking jaw 54. Since the coupling 53 is formed in the leg 53, the coupling force 52 between the splice member 30 and the cover 41 is increased to insert the first and second optical fibers 100 inserted into the splice member 30 ( 200) can be fixed stably.

In addition, the cover 41 is formed in such a way that the width between the fitting legs 43 increases as the fitting legs 53 formed on both sides of the lower portion go down. As a result, the fitting leg 53 inserted into the fitting hole 51 of the splice member 30 comes into close contact with the fitting hole 51, and the coupling hook 52 passing through the fitting hole 51 is inclined. Since the locking jaw 54 is caught, the fitting leg 53 inserted into the fitting hole 51 acts to descend downward along the inclined surface of the locking jaw 54. Therefore, the coupling force between the splice member 30 and the cover 41 can be improved.

The pair of fitting legs 55 (hereinafter referred to as 'removable fitting legs') positioned on the outside of the plurality of fitting legs 53 includes a protrusion 57 extending under the coupling hook 52. When the removable fitting leg 55 is coupled to the fitting hole 51, the protrusion 57 protrudes below the fitting hole 51.

At this time, the push button 23 of the connector body 20, as shown in Figures 2, 3 and 6, is formed in a position corresponding to the protrusion 57, the fitting hole 51 of the core mounting portion 34 The cover 41 coupled to the core mounting portion 34 may be spaced apart from the core mounting portion 34 by pushing the protrusions 57 protruding downward. 6 is a partially cutaway perspective view showing the push button 23 of the connector body 40 of FIG.

The removable fitting 55 is formed on the opposite side to which the ferrule 31 is coupled, and the push button 23 is formed on the connector body 20 on the opposite side to which the ferrule 31 is coupled.

The push button 23 is a pair of push plates 25 protruding into the push space 24 connected to the hollow portion 21 at the lower part of the connector body 20, and a pair of upper surfaces of the push plates 25. It includes a pair of pushing projections (26) formed to protrude toward the protrusion (57) of the removable fitting leg (55) to push the protrusion (57). In the present embodiment, an example in which the pushing protrusion 26 is formed in the push button 23 is disclosed, but may be omitted.

The push button 23 lifts the splice unit 40 or grips the first optical fiber 100 coupled to the ferrule 31 when the coupling hook 52 and the fitting hole 51 are coupled to each other. It is provided in the push space 24 in the connector main body 20 of the side corresponding to the core insertion hole 32 so that the 201 may form the flow space which can be moved along the V groove 33. As shown in FIG. Of course, one side of the push button 23 is connected to the connector body 20, has a structure that can be moved into the hollow portion 21 is protruded into the push space 24 and connected to the push space 24.

Therefore, the field assembly optical connector 10 according to the present exemplary embodiment is provided in a form in which the cover 41 is coupled to the splice member 30, and when the first and second

optical fibers

100 and 200 are connected, the connector After the cover 41 coupled to the splice member 30 is lifted up by the push button 23 formed on the main body 20, the first and second optical fibers 100 and 2000 may be connected.

Since the push button 23 is formed integrally with the connector main body 20 in this manner, it is not necessary to separately provide a jig for lifting the cover 41 from the splice member 30.

The clamping member 60 is coupled by the connector body 20 and the fastening means 80 to elastically bias the splice unit 40 on which the ferrule 31 is mounted in the direction in which the ferrule 31 protrudes. The clamping member 60 is inserted into the extension part 35, and a coupling part 62 for supporting the spring 65 supported by the extension part 35 and a predetermined distance from each other extending backward from the coupling part 62. Jaws 61 are spaced apart. Gripping projections 63 for gripping the second optical fiber 200 are formed in mutually opposite portions of the jaws 61 in a direction corresponding to each other, and ends of the jaws 61 in a mutually opposite direction are formed in the second optical fibers ( It is formed in a semi-circular shape so that the jacket of 200) can be gripped.

The fastening means 80 is for coupling the connector body 20 and the clamping member 60 to each other, and the engaging portion 81 and the clamping member 60 formed at the rear end side of the connector body 20. (62) A locking jaw 82 coupled to the locking groove 81 is formed on the outer circumferential surface thereof.

The boot 72 is coupled with the clamping member 60 to provide a clamping force to the jacket portion of the second optical fiber 200.

The process of field assembly of the optical fiber using the field assembly type optical connector 10 according to the present embodiment will be described with reference to FIGS. 7 and 8 as follows. 7 is a cross-sectional view illustrating a state in which the field assembly optical connector of FIG. 1 is assembled. 8 is a cross-sectional view illustrating a state in which a cover coupled to the splice member by the push of the push button of FIG. 1 is spaced apart from the splice member.

In the field assembly connector 10 according to the present exemplary embodiment, the cover 41 is coupled to the splice member 30 in order to prevent a problem that the cover 41 is lost from the splice member 30. It is provided in the form.

In general, optical fibers are jacketed cables that include an outer jacket (eg, with a buffer coating, etc.) coating, a core (eg, a bare clad / core), and a strength member. The strength member comprises aramid, Kevlar or polyester yarn or strand disposed between the inner surface of the fiber jacket and the outer surface of the coating.

In order to connect the optical fiber using the field assembly connector 10 according to the present embodiment, the second optical fiber 200 is inserted into the boot 72 and then a part of the cable jacket of the second optical fiber 200 is cut out. And peeling the coating of the second optical fiber 200 to leave a bare fiber portion 201 and to match the end of the first core 101 of the first optical fiber 100 pre-installed. 201) is provided by cutting the end. For example, the second optical fiber 200 may have a jacket of about 50 mm removed to leave a peeled second core 201 of about 25 mm.

Since the cut second core 201 can be optically coupled by the splice unit 40, there is no need to polish the fiber ends. Boot 72 may slide over the second optical fiber 200 for later use. As such, when the coating of the second optical fiber 200 is removed, the second core 201 is cleaned using alcohol and gauze.

In this state, the cover 41 coupled to the splice member 30 is lifted up only through the core insertion hole 32 by lifting only the portion having the detachable fitting leg 55 using the push button 23. The two cores 201 form a flow space to move along the v-groove 33.

Subsequently, the second optical fiber 200 is inserted into the core insertion hole 32 formed in the extension part 35 through the clamping member 60.

It is checked whether the second optical fiber 200 is bent while the second core 201 is inserted. This means that the first and

second cores

101 and 201 of the first and second

optical fibers

100 and 200 are in close contact with each other.

Then, the cover 41 is pressed to engage the coupling hook 52 and the fitting hole 51 which are not coupled to complete the connection of the first and second

optical fibers

100 and 200.

When the connection of the first and second

optical fibers

100 and 200 is completed as described above, the boot 72 and the clamping member 60 are screwed together while the second optical fiber 200 is pulled back and maintained in a straight state. . The connector body 20 and the housing 71 are coupled to each other.

Since the field assembly type optical connector 10 according to the present embodiment can be connected to the field within a short time in the field, it can be widely applied to various network equipment.

As described above, when the maintenance work is performed after completing the assembly using the field assembly type optical connector 10 according to the present embodiment, the push button 23 formed at the bottom of the connector body 20 is removed. By lifting only the wearing leg 55 out of the fitting hole 51, a flow space can be formed so that the second core 201 introduced through the core insertion hole 32 can move along the v-groove 33. Can be.

In this state, the second optical fiber 200 may be separated, and the second optical fiber 200 may be reassembled or replaced with a new optical fiber.

On the other hand, the embodiments disclosed in the specification and drawings are merely presented specific examples to aid understanding, and are not intended to limit the scope of the present invention. It is apparent to those skilled in the art that other modifications based on the technical idea of the present invention can be carried out in addition to the embodiments disclosed herein.

Claims

A connector body having a hollow portion penetrated at both sides thereof, an opening formed at an upper portion thereof in which a cover can be inserted or detached, and a push button movable in the hollow portion integrally formed at the lower portion of the opening;

And a splice unit having a splice member inserted into and installed in the hollow portion of the connector body, and a cover detachably coupled to the splice member through an opening of the connector body.

And the push button pushes the cover coupled to the splice member to lift it against the splice member.
The method of claim 1, wherein the splice unit,

The splice member,

A ferrule on which one core of the first optical fiber is supported;

The ferrule is coupled to one side, the core insertion hole is formed on the other side is inserted into the second core of the second optical fiber, the core insertion hole is in communication with the V for splicing the first and second cores of the first and second optical fibers A core mounting portion is formed, and a core mounting portion having a plurality of fitting holes formed at both sides of the v-shaped groove portion,

The cover,

A cover body covering the core mounting portion having the V-shaped portion formed;

The cover body is formed to protrude to correspond to the plurality of fitting holes, respectively, and is inserted into the plurality of fitting holes to couple the cover body to the core mounting portion in which the V-shaped groove is formed. A plurality of fitting legs for supporting end portions of the supported first and second cores in close contact with the cover body;

Field assembly optical connector comprising a.
The method of claim 2, wherein the plurality of fittings,

A plurality of first fitting legs arranged on one side of the lower portion of the cover body;

And a plurality of second fitting legs arranged on the other side of the lower portion of the cover body facing the first fitting leg.

Widths of the first and second fitting legs are increased downward from the cover body, and widths of the lower portions of the first and second fitting legs are located on both sides facing the V-shaped grooves. Field assembly type optical connector, characterized in that wider than the width between the holes.
The method of claim 3,

Locking jaws are formed at lower ends of the plurality of fitting holes, respectively, inclined outward with respect to the inner circumferential surface of the fitting holes,

Each of the plurality of fittings of the cover, the field assembly type optical connector, characterized in that the engaging hook is caught on the locking step on the outside of the lower side corresponding to the inclined surface of the locking step.
The method of claim 4, wherein the pair of the plurality of fitting legs located on the outer side has a protrusion extending below the coupling hook,

The push button of the connector body is formed at a position corresponding to the protrusion, and pushes the protrusion protruding below the fitting hole of the core mounting portion to separate the cover coupled to the core mounting portion from the core mounting portion. Field-mountable optical connector.
The method of claim 5,

The fitting leg formed with the protrusion is formed on the opposite side to which the ferrule is coupled,

And the push button is formed in the connector body on the opposite side to which the ferrule is coupled.
The method of claim 6, wherein the push button,

A push plate protruding to a push space connected to the hollow part at a lower portion of the connector body;

A pair of pushing protrusions protruding from the upper surface of the push plate toward the protrusions of the pair of fitting legs to push the protrusions;

Field assembly optical connector comprising a.
The method of claim 1,

A housing to which the connector body is coupled, and an opening at which a push button is exposed is formed;

Field assembly type optical connector characterized in that it further comprises.
The method of claim 1,

A housing coupled to the connector main body to support the splice unit and to support the ferrule of the splice unit to protrude to the front;

A clamping member coupled to the connector body to elastically support the splice unit with respect to the housing and having a clamping portion;

A boot coupled with the clamping member to provide a clamping force for the jacket portion of the second optical fiber;

Field assembly type optical connector, characterized in that it further comprises.