KR102525950B1 - Optical cable with heterogeneous connector - Google Patents

Abstract

According to the present invention, an optical cable provided with heterogeneous connectors can be connected to communication equipment by assembling only one optical connector in the field, thereby making a line laying work easier and reducing time. According to the present invention, provided is an optical cable provided with optical connectors connected to communication equipment at both ends of the cable through which optical signals are transmitted, which includes: a cable; a boot-type optical connector coupled to one end of the cable in a finished state; and an assembly type optical connector which is assembled on site to the other end of the cable.

Description

Optical cable with heterogeneous connector {Optical cable with heterogeneous connector}

The present invention relates to an optical cable equipped with a heterogeneous connector, and more particularly, a boot-type optical connector having a boot coupled to one end of the cable, and an assembly-type optical connector to the other end, wherein the assembly-type optical connector is easy to assemble. It relates to an optical cable equipped with a heterogeneous connector that can be easily assembled even by beginners.

In the case of a new building, a communication line is built inside the building by laying an electric communication wiring line in advance. Recently, for electrical safety, a law has been amended so that synthetic resin products cannot be used as the wiring conduits, and non-combustible conduits are installed.

However, in the case of a building without such a wiring conduit, a construction work is required to connect the inside and outside of the building in order to introduce the optical cable into the building, and in the case of an apartment, a hole is drilled in the door frame to connect the veranda and the room, It is common to do

At this time, in order to introduce an optical cable by drilling only a hole that minimizes damage to the internal structure of the building, a cable without a connector is introduced into the hole, and then an assembly-type optical connector is coupled to the end of the cable to build a communication line.

As a prior art related to this, Korea Patent Registration No. 10-1625146 (May 23, 2016) discloses an 'optical cable and its installation method'.

The prior art includes (a) forming a hole in a building, (b) introducing a cable to which a ferrule is connected from the outside of the building into the inside of the building through the hole, (c) connecting the cable and the boot. (d) wrapping the cable portion between the ferrule and the boot with a stopper, (e) coupling one side of the stopper and the boot, (f) coupling one side of the frame and the other side of the stopper, and (g) coupling the housing and the frame;

A ring surrounds one side of the ferrule and a portion of the cable,

At least a portion of the optical fiber of the cable is inserted into the ferrule, the sheath of the cable and the aramid yarn are positioned and fixed between one side of the ferrule and the ring, and the aramid yarn fixed by the ring is subjected to an external force Since it sufficiently resists, the optical fiber is protected from the external force.

However, the prior art described above consists of a ring, which is a member that strengthens and fixes the binding between the ferrule and the cable, an elastic member seated on the outer periphery of the ring, a stopper surrounding one side of the elastic member, ring, and ferrule, a boot, a frame, and a housing. It is configured, the configuration is complicated, and since the assembly type connector is provided at both ends, there is a problem in that a lot of time is required during installation.

The present invention was created to solve the problems of the prior art as described above, and an object of the present invention is that one side is provided with a boot-type optical connector and the other side is provided with an assembly-type optical connector, so that time is reduced when laying an optical cable. , a flange is provided on the outer periphery of the front end of the ring fixing the cable and the ferrule in which the core wire of the cable extends in the center, and the insertion end of the main body supporting the cable is provided inside the stopper, so that the heterogeneous connector is easy to assemble. It is to provide the provided optical cable.

An optical cable equipped with heterogeneous connectors according to the present invention for achieving the above object is an optical cable equipped with optical connectors connected to communication equipment at both ends of the cable through which optical signals are transmitted, and completed at one end of the cable and the cable. A boot-type optical connector coupled in a state, and an assembly-type optical connector assembled at the site at the other end of the cable are provided,

At the other end of the cable, a ferrule in which the core wire of the cable is concave in the center, and a ferrule support having a flange extending outward at the front end surrounding the outer periphery of one side of the ferrule and the outer periphery of the cable adjacent to the ferrule A tube and an elastic member seated on the outer circumference of the cable to be caught on the rear end of the flange are provided,

The assembling type optical connector includes a stopper into which the cable coupled with the ferrule is inserted from the rear and seated thereon; a frame coupled to the front of the stopper and surrounding the outside of the ferrule so that the elastic member is supported at the front end of the stopper; It is characterized in that a housing coupled to the frame and a front side of the stopper is provided.

The stopper is provided with a stopper body having a lower inner surface rounded in an arc shape so that the outer periphery of the cable is seated, and a stopper cover hinged to both rear sides of the stopper body to open and close one upper side of the stopper body. ,

The stopper body includes an inlet end having an outer surface extending in a rectangular shape and a hinge shaft center coupled to the stopper cover provided on both side walls, and a cover extending in a shape with an upper portion opened in front of the inlet end and to which the stopper cover is fixed A cover opening/closing end with fixing protrusions protruding from both side walls, a housing coupling end extending in a shape with an upper part open in front of the cover opening/closing end, and an arc shape extending in an arc shape with an upper part open in front of the housing coupling end and extending along the outer circumference of the front A frame coupling end having a frame coupling protrusion coupled to the frame is provided,

The stopper cover extends in a rectangular shape with an open lower surface, opens and closes the upper part of the cover opening and closing end when rotated, and has a cover body provided with a protruding groove coupled to the cover fixing protrusion on both side walls, and both rear side walls of the cover body A hinge coupling end extending rearwardly and having a hinge hole coupled to the hinge axis, and a body insertion end protruding downward from the upper lower surface of the cover body and extending forward,

It is characterized in that the front end of the body insertion end is provided with a coupling end insertion hole protruding to be inserted into the upper portion of the housing coupling end.

The cover fixing protrusion is characterized in that the lower end is provided in a wedge shape protruding more outward so that the protrusion groove is caught at the lower end.

The housing coupling end protrudes higher than the upper end of the cover opening/closing end so that the upper surface of the coupling end insertion hole does not protrude upward, and the lower surface of the cover opening/closing end protrudes downward more than the lower surface of the housing coupling end, and the cover The body is characterized in that it extends more outward than the outer circumferential surface of the housing coupling end so that the housing is caught at the front end.

The frame is provided with a stopper coupling portion having a stopper fixing hole coupled to the frame coupling protrusion, and a ferrule support portion extending in front of the stopper coupling portion, and the stopper coupling portion has a central portion cut vertically, and the stopper fixing hole on both sides Each of the through-hole stopper coupling pieces is provided, and the ferrule support portion protrudes inward so that the front end of the flange is caught and supported when the stopper coupling portion and the frame coupling end are engaged.

The outer periphery of the flange is provided with a plurality of concave grooves recessed inward to indicate the direction when the frame is coupled, and a pair of guide jaws protruding to be inserted into the concave grooves are provided on both rear sides of the flange support piece. characterized by being

An inner diameter of the housing coupling end is formed narrower than an inner diameter of the cover opening/closing end.

As such, the optical cable provided with the heterogeneous connector according to the present invention has the following effects.

First, the boot-type optical connector completed at the factory and the assembly-type optical connector assembled at the site are provided at both ends, thereby reducing the assembly time of the connector of the optical cable connected to the communication equipment in the building,

Second, as the assembly-type optical connector consisting of a stopper, a frame, and a housing is bound to a cable in which a ferrule, a ferrule support tube, and an elastic member are coupled, the binding work between the cable and the optical connector is simplified and facilitated.

Third, the stopper body of the stopper and the stopper cover are hinged, and a coupling end insertion hole is provided at the body insertion end of the stopper cover to be integrally coupled with the housing, so that the cable in which the ferrule, the ferrule support tube, and the elastic member are coupled is easily It can be installed firmly and assembled firmly,

Fourth, since the inner diameter of the housing coupling end is formed narrower than the inner diameter of the cover opening/closing end, the cable can be easily drawn out to the front of the cover opening/closing end through the upper portion of the housing coupling end, thereby facilitating the cable insertion operation.

Fifth, the flange support piece and the guide jaw of the frame are provided so as to be linked to the flange and the concave groove of the flange, so that the ferrule inserted into the frame is prevented from rotating left and right, and expands forward and backward to stably connect the core wires of the optical cable. be able to

1 is a view showing the configuration of an optical cable according to the present invention,
2 is a view illustrating an assembly-type optical connector according to the present invention;
3 is a view showing a stopper according to the present invention,
4 is a view illustrating a stopper cover according to the present invention;
5 is a view illustrating the coupling of a frame and a stopper according to the present invention;
6 is a view illustrating a frame and a flange according to the present invention;
7 is a view showing an assembled state by coupling the housing according to the present invention.

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

As shown in FIGS. 1 to 7, an optical cable having heterogeneous connectors according to the present invention includes heterogeneous optical connectors connected to communication equipment at both ends of the cable through which optical signals are transmitted.

Specifically, the optical cable of the present invention includes a cable 1, a boot-type optical connector 2 coupled to one end of the cable 1 in a completed state, and assembled at the other end of the cable 1 at the site. An assembly-type optical connector 3 is provided.

And, at the other end of the cable 1, a ferrule 5 in which the core wire of the cable 1 is recessed in the center, and a cable adjacent to the outer circumference of one side of the ferrule 5 and the ferrule 5 ( A ferrule support pipe 6 having a flange 6a extending outward at the front end surrounding the outer periphery of 1) and seated on the outer periphery of the cable 1 so as to be caught on the rear end of the flange 6a An elastic member 7 is provided to be assembled with the assembly-type optical connector 3.

At this time, the ferrule support pipe 6 equipped with the flange 6a is configured to be in close contact with the rear outer periphery of the ferrule 5 and the outer periphery of the cable 1, so that the ferrule 5 and the cable 1 to keep the bond firmly intact.

On the other hand, the assembly-type optical connector 3 includes a stopper 10 into which the cable 1 coupled with the ferrule 5 is inserted from the rear and seated; a frame 20 coupled to the front of the stopper 10 while surrounding the outside of the ferrule 5 so that the elastic member 7 is supported at the front end of the stopper 10; The frame 20 and the housing 30 is coupled to surround one side of the front of the stopper 10 is provided.

Here, the stopper 10 includes a stopper body 11 whose lower inner surface is rounded in an arc shape so that the outer periphery of the cable 1 is seated, and one upper side of the stopper body 11 is opened and closed. It consists of a stopper cover 12 hinged to both rear sides of the stopper body 11. That is, when the cable 1 is pulled in from the rear, the stopper cover 12 is pulled in in an open state, and the cable 1 is seated inside the stopper body 11, and the stopper cover 12 is coupled to the top of the stopper body 11 by rotating.

The stopper body 11 according to the present invention has an outer surface extending in a rectangular shape and a hinge axis 111 coupled to the stopper cover 12 is provided on both side walls of the inlet end 11a, and the inlet end ( A cover opening/closing end 11b extending in a shape with an open top at the front of 11a) and a cover fixing protrusion 112 to which the stopper cover 12 is fixed protrudes from both side walls, and the cover opening/closing end 11b A housing coupling end 11c extending in a shape with an upper opening at the front, and a frame extending in an arc shape with an upper opening in front of the housing coupling end 11c and coupled to the frame 20 at the front outer periphery. A frame coupling end 11d having a coupling protrusion 113 is provided. That is, the upper surfaces of the cover opening/closing end 11b, the housing coupling end 11c, and the frame coupling end 11d, excluding the inlet end 11a, are cut so that the top is opened, and the frame coupling end 11d is frame ( 20), the inside and outside are configured in an arc shape to be combined.

In addition, the stopper cover 12 extends in a rectangular shape with an open lower surface, opens and closes the top of the cover opening/closing end 11b when rotated, and has a protruding groove 121 coupled to the cover fixing protrusion 112 on both side walls. A cover body 12a having a ) and a hinge joint end 12b having a hinge hole 122 that extends rearward from both rear side walls of the cover body 12a and is coupled to the hinge axis 111, , the body insertion end 12c protrudes downward from the upper and lower surfaces of the cover body 12a and extends forward. That is, the stopper cover 12 rotates around the hinge end 12b at both rear sides of the cover body 12a.

At this time, the front end of the body insertion end 12c is provided with a coupling end insertion opening 123 protruding to be inserted into the upper portion of the housing coupling end 11c. That is, the coupling end insertion hole 123 of the main body insertion end 12c is recessed into the rear inner surface of the housing 30 together with the housing coupling end 11c, so that the stopper cover 12 maintains the stopper body even when an external force is applied. Departure from (11) is prevented.

The cover fixing protrusion 112 is provided in a wedge shape with a lower end protruding outward so that the protruding groove 121 is caught at the lower end, so that the stopper cover 12 is attached to the stopper body even before the housing 30 is coupled. In (11), the coupling is prevented from being released.

On the other hand, the housing coupling end 11c protrudes higher than the upper end of the cover opening/closing end 11b so that the upper surface of the coupling end insertion port 123 does not protrude upward, so as described above, the rear side of the housing 30 It is recessed into the coupling end insertion hole 123 together with the housing coupling end 11c on the inner surface.

Further, the lower surface of the cover opening/closing end 11b protrudes downward more than the lower surface of the housing coupling end 11c, and the cover body 12a extends more outward than the outer circumferential surface of the housing coupling end 11c. , The rear end of the housing 30 is caught on the lower surface of the cover body 12a and the cover opening/closing end 11b. At this time, it is preferable that the expansion width of the outer circumferential surface of the housing 30, the outer circumferential surface of the cover body 12a, and the lower surface of the cover opening/closing end 11b have the same height.

In addition, the frame 20 includes a stopper coupling portion 21 provided with a stopper fixing hole 211 coupled to the frame coupling protrusion 113, and a ferrule extending in front of the stopper coupling portion 21 It is divided into a support part 22.

The stopper coupling portion 21 is provided with stopper coupling pieces 21a in which the central portion is cut vertically and the stopper fixing holes 211 are provided on both sides, so that the stopper coupling pieces 21a expand and contract left and right, It is easily coupled to the frame coupling end 11d of the stopper 10.

In addition, the ferrule support part 22 has a flange support piece 22a on the inside so that the front end of the flange 6a is caught and supported when the stopper coupling part 21 and the frame coupling end 11d are coupled. protrudes into That is, the elastic force of the elastic member 7 disposed behind the flange 6a is transmitted between the frame coupling end 11d of the stopper 10 and the flange support piece 22a.

In addition, the outer periphery of the flange 6a is provided with a plurality of concave grooves 6a' recessed inward to indicate the direction when the frame 20 is coupled, and the rear side portions of the flange support piece 22a. is provided with a pair of guide jaws 22b protruding to be inserted into the concave groove 6a', thereby preventing the ferrule 5 from freely rotating, thereby preventing the core wire of the cable 1 from being changed or bent do.

The inner diameter of the housing coupling end 11c is formed to be narrower than the inner diameter of the cover opening/closing end 11b, so that the cable 1 can be easily drawn forward after being inserted from the rear.

Looking at the action of the optical cable provided with the heterogeneous connector according to the present invention having the above configuration is as follows.

As shown in FIGS. 1 to 7, the optical cable having a heterogeneous connector according to the present invention has a ready-made boot-type optical connector 2 on one side and an assembly-type optical connector 3 on the other side. However, it is possible to easily complete an optical cable by assembling only one connector at the site and connect it to communication equipment.

Here, the ferrule 5 provided at the end of the cable 1 to which the assembly-type optical connector 3 is coupled integrally binds the outer sheath of the cable and the aramid yarn with the ferrule support pipe 6 at the rear, so that external force is reduced. Even if it is delivered, it is prevented from being damaged, and by inserting the optical connector (3) into the building in an unassembled state and proceeding with the assembly work, the size of the hole drilled in the building can be reduced to prevent consumer complaints in advance. You can do it.

In addition, in the assembling type optical connector 3, the stopper 10 composed of the stopper body 11 and the stopper cover 12 hinged at the rear simultaneously serves as a boot of the prior art, thereby simplifying the assembly work and improving economy. this will improve

That is, the body insertion end 12c provided on the upper lower surface of the stopper cover 12 of the stopper 10 adheres to the upper surface of the cable 1 when the stopper cover 12 is fastened with the stopper body 11. A coupling end insertion hole disposed on the rear inner surface of the housing 30 that not only prevents the cable 1 from being easily moved inside the stopper 10, but also surrounds the outside in a state in which the frame 20 and the ferrule 5 are coupled As the 123 is provided, the coupled state of the stopper 10, the frame 20, and the housing 30 is firmly maintained unless the body insertion end 12c is damaged.

On the other hand, both side surfaces of the housing 30 are provided with frame grooves (B) that are linked with housing coupling protrusions (A) provided on both outer surfaces of the frame 20 to prevent separation in the front and rear directions.

In addition, the inlet end 11a, the cover opening/closing end 11b, and the housing coupling end 11c constituting the stopper body 11 have a rectangular outer surface and an arcuate lower surface on the inner surface, thereby forming a cylindrical shape. The cable 1 is stably seated on the lower surface to prevent it from being easily damaged by puncture or external force.

As described above, the optical cable equipped with the heterogeneous connector according to the present invention is equipped with a ready-made boot-type optical connector 2 on one side and an assembly-type optical connector 3 on the other side, thereby simplifying the assembly work and providing an assembly-type optical connector Among the configurations of (3), the stopper 10 is provided to perform the function of the boot together, so that the cable 1 can be stably bound and easily connected to the communication equipment.

The present invention is not limited to the specific preferred embodiments described above, and various modifications can be made by anyone skilled in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes are within the scope of the claims.

<Description of symbols for main parts of drawings>
1: cable 2: boot type optical connector
3: assembly type optical connector 5: ferrule
6: ferrule support pipe 6a: flange
6a': concave groove 7: elastic member
10: stopper 11: stopper body
11a: inlet end 11b: cover opening/closing end
11c: housing coupling end 11d: frame coupling end
111: hinge axis 112: cover fixing protrusion
112: cover fixing projection 113: frame coupling projection
12: stopper cover 12a: cover body
12b: hinge end 12c: body insertion end
121: protruding groove 122: hinge ball
123: coupling end insert 20: frame
21: stopper coupling part 21a: stopper coupling piece
22: ferrule support 22a: flange support piece
22b: guide jaw 211: stopper fixing hole
30: housing
A: Housing coupling protrusion B: Frame groove C: Protection cap

Claims (7)

In an optical cable provided with optical connectors connected to communication equipment at both ends of the cable through which optical signals are transmitted,
A cable (1), a boot-type optical connector (2) coupled to one end of the cable (1) in a finished state, and an assembly-type optical connector (3) assembled to the other end of the cable (1) in a field is provided,
At the other end of the cable 1, a ferrule 5 in which the core wire of the cable 1 is recessed in the center, and a cable 1 adjacent to the outer periphery of one side of the ferrule 5 and the ferrule 5 A ferrule support tube 6 having a flange 6a extending outward at the front end surrounding the outer periphery of the ferrule support pipe 6, and an elastic seated on the outer periphery of the cable 1 so as to be caught on the rear end of the flange 6a. A member 7 is provided,
The assembly-type optical connector 3 includes a stopper 10 into which the cable 1 coupled with the ferrule 5 is inserted from the rear and seated therein; a frame 20 coupled to the front of the stopper 10 while surrounding the outside of the ferrule 5 so that the elastic member 7 is supported at the front end of the stopper 10; A housing 30 wrapped around and coupled to one front side of the frame 20 and the stopper 10 is provided,
The stopper 10 includes a stopper body 11 having a lower inner surface rounded in an arc shape so that the outer periphery of the cable 1 is seated, and the stopper body 11 to open and close one upper side of the stopper body 11 ( 11) is provided with a hinged stopper cover 12 on both sides of the rear side,
The stopper body 11 has an outer surface extending in a rectangular shape and a hinge axis 111 coupled to the stopper cover 12 is provided on both side walls of the inlet end 11a, and the front of the inlet end 11a A cover opening/closing end 11b extending in an open shape and having a cover fixing protrusion 112 to which the stopper cover 12 is fixed protrudes from both side walls, and an upper portion in front of the cover opening/closing end 11b A housing coupling end 11c extending in an open shape, and a frame coupling protrusion 113 extending in an arc shape with an upper part opened in front of the housing coupling end 11c and coupled to the frame 20 at the front outer periphery. ) Is provided with a frame coupling end (11d) provided,
The stopper cover 12 extends in a rectangular shape with an open lower surface and opens and closes the upper portion of the cover opening/closing end 11b when rotated, and has a protruding groove 121 coupled to the cover fixing protrusion 112 on both side walls A cover body 12a, a hinge end 12b extending rearward from both rear side walls of the cover body 12a and having a hinge hole 122 coupled to the hinge axis 111, A body insertion end 12c protrudes downward from the upper lower surface of the cover body 12a and extends forward, and
The front end of the body insertion end 12c is provided with a protruding coupling end insertion hole 123 to be inserted into the upper portion of the housing coupling end 11c,
The housing coupling end 11c protrudes higher than the upper end of the cover opening/closing end 11b so that the upper surface of the coupling end insertion hole 123 does not protrude upward, and the lower surface of the cover opening/closing end 11b is coupled to the housing. It protrudes further downward from the lower surface of the end (11c), and the cover body (12a) extends outward more than the outer circumferential surface of the housing coupling end (11c) so that the housing 30 is engaged at the front end. Characterized in that An optical cable equipped with heterogeneous connectors. delete According to claim 1,
The cover fixing protrusion 112,
An optical cable with a heterogeneous connector, characterized in that the lower end is provided in a wedge shape protruding more outward so that the protrusion groove 121 is caught at the lower end. delete According to claim 1,
The frame 20,
A stopper coupling portion 21 having a stopper fixing hole 211 coupled to the frame coupling protrusion 113 and a ferrule support portion 22 extending in front of the stopper coupling portion 21 are provided,
The stopper coupling portion 21 is provided with stopper coupling pieces 21a in which the central portion is cut vertically and the stopper fixing holes 211 are formed on both sides,
The ferrule support part 22 has a flange support piece 22a protruding inward so that the front end of the flange 6a is caught and supported when the stopper coupling part 21 and the frame coupling end 11d are coupled An optical cable equipped with a heterogeneous connector, characterized in that. According to claim 5,
The outer periphery of the flange 6a is provided with a plurality of concave grooves 6a' recessed inward to indicate the direction when the frame 20 is coupled,
An optical cable with a heterogeneous connector, characterized in that a pair of guide jaws (22b) protruding to be inserted into the concave groove (6a') are provided on both rear sides of the flange support piece (22a). According to claim 1,
An optical cable with a heterogeneous connector, characterized in that the inner diameter of the housing coupling end (11c) is formed narrower than the inner diameter of the cover opening and closing end (11b).

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