KR200146324Y1 - Multi-core optical connector assembly with lining device fixing pin - Google Patents

Abstract

The present invention relates to a multi-core optical connector assembly for fixing so that the connection failure does not occur when the multi-core optical fiber is connected to the case after connecting through the connector. Conventionally, the alignment member 20 to which the connector 10 is connected is seated so as not to move in the case 30, but the length is increased because the elastic body is pressed so that each connector 10 is closely contacted with the alignment member 20. In the case of the short alignment member, the phenomenon of lifting to the top of the case occurs often causing a problem of connection failure of the optical fiber. The present invention is devised to solve this problem, the configuration of the multi-core optical connector assembly, when the alignment member 20 is seated in the case 30, the alignment member 20 and the case 30 Each through hole 25, 36 penetrating in the transverse direction on the wall surface of the (), and the fixing pin 27 is inserted into the through holes 25, 36, characterized in that the multi-core optical connector Since the assembly can prevent deformation caused by external impact or elasticity of the elastic body, the assembly provides an effect of stably maintaining the connection of the optical fibers.

Description

Multi-core optical splice assembly with alignment member fixing pin

The present invention relates to a multi-core optical connector assembly for connecting an optical cable, and more particularly, to a multi-core optical connector assembly for fixing the connector is not deformed to cause a connection failure after connecting the multi-core optical fiber.

In general, optical communication is an exchange of information by transmitting light. An optical fiber made of glass fiber (optical fiber), that is, an optical cable, is a medium, and can transmit tens of thousands of times more information than electric communication by current coaxial cable. have. In addition, since the transmission state of the information is good because it is not influenced by radio waves and magnetic fields from the outside, it is widely used in the communication field, and its use range is gradually expanding to other fields.

In recent years, the rapid recognition of informatization has required more optical cable lines. Recently developed optical cables have been used to process a lot of information by producing ribbon-type multi-core optical cables incorporating a single optical fiber in a band shape.

Such an optical cable is installed at a distance of several hundred kilometers or more, and thus requires connection and branching of the cable in the middle.

However, since optical fibers made of very small diameters (125㎛) are formed inside the optical cables, it is very difficult to connect the cores of the optical fibers to each other, and in the case of multi-core optical cables, it is necessary to connect a plurality of optical fibers at once. More difficult.

Various methods are used for the connection of optical fibers, and representative examples thereof include a fusion splicing method and a mechanical splicing method. The electronic fusion splicing method is used to melt and connect optical fibers and is mainly used for permanent connection.In order to achieve this, expensive precision fusion splicing apparatus must be used and electricity must be applied. There is an advantage of high reliability of optical characteristics.

In addition, the mechanical optical cable connector has various advantages, such as convenience of work and no additional device, so that it can be easily used in any place, and the reliability of optical characteristics is almost the same as that of fusion splicing.

Conventional mechanical optical cable splices often use special tools, making it difficult to connect in the field, and in the clamping method, there is a defect in not fully grabbing the coating part of the optical fiber. The occurrence of torsion of the broken optical fiber caused the breakage of the optical fiber.

In order to fundamentally solve the breakage of the optical fiber, it is useful to prevent the generated torsional tension directly applied to the optical fiber cladding and to perform the second clamping on the optical fiber coating. In addition, in the implementation of the double clamping function has a structure in which the primary clamping and the secondary clamping function is operated at the same time.

The conventional optical fiber splice for splicing optical fibers has a special tool for clamping function that adds the necessary force to maintain alignment when the fiber is spliced. In addition, when the force acts in the axial direction of the optical fiber in performing the clamping function, the aligned optical fiber is caused to axially slide in the axial direction, resulting in a connection failure and an increase in optical loss.

As a countermeasure for this, the anti-rolling structure is added to prevent the pressing plate from being pushed in the axial direction. In this case, the additional device for the implementation is small, so it is difficult in terms of manufacturing technology and is weak in structure. It is a challenge that requires great care.

In addition, in using the double clamping function to reduce the strain in the optical fiber connection portion, the clamping function (primary clamping function) and the optical fiber coating portion clamping function (secondary clamping) function of the conventional optical cable connection device At the same time, when the optical fiber is inserted and clamped in one end of the splice, the coating part (secondary clamping) and the cladding part (primary clamping) of the inserted optical fiber are simultaneously pressed down and inserted into the opposite side of the splice. The optical fiber is clogged so that it cannot be inserted into the connection, making it difficult to align the fibers. Therefore, the splicing device of this structure clamps the respective optical fiber coatings and cores (core wires) at the same time after inserting optical fibers in both insertion ports of the splicing device in a state where both the primary and the secondary clamping are left open.

However, such a structure is difficult to tune to optimize the alignment of the optical fiber because one optical fiber of the connection device is not fixed, and the optical loss is measured after measuring the optical loss even after tuning. This has to be done again from the beginning.

Therefore, in an effort to overcome such problems, various multi-core optical connectors have been disclosed in Korean Patent Application Nos. 95-38970, 95-71047, and Utility Model Registration Nos. 96-5085.

As an example, a conventional multicore optical connector disclosed in Patent Application Nos. 95-38970 is as follows.

As shown in FIG. 1, the connector assembly 100 has a plurality of holes 17 into which the core wires of the optical cable 1 are inserted, and includes a ferrule 11 protruding to a predetermined length on one surface thereof. A reinforcing member 31 is provided on an alignment member 20 having a pair of connectors 10, a through hole 21 for receiving the aforementioned ferrule 11, and one side wall of the body constituting an open rectangular shape. Is provided, but a pair of the elastic body 32 is symmetrically coupled to each other at a predetermined distance spaced at both ends side, and has a cutout portion 34 cut into a predetermined size between the elastic body 32 and a pair of the The connector 10 and the alignment member 20 is composed of a case 30 is inserted and seated.

Such a conventional connector assembly 100 is inserted into the case 30 in a state in which each connector 10 and the alignment member 20 are combined, sometimes the alignment member 20 by the elastic body 32 to the upper side. Problems that are taxed have been found. Due to this problem, it was found that the ends of each optical fiber arranged to be aligned with each other in the alignment member 20 are separated and the optical signal is lost. This phenomenon was found to worsen when the length of the alignment member is relatively short. It is most preferable that the optical signal has almost the same input amount and output amount, but the optical loss should not affect the reading of the data even if the optical loss occurs because the optical loss is minimal due to the optical fiber connection.

The present invention has been made to solve the problems caused by the conventional optical fiber splicing apparatus as described above.

SUMMARY OF THE INVENTION An object of the present invention is to provide an optical connector assembly having an alignment member fastener for preventing the optical fibers, which are arranged to be lifted by an elastic body and connected to each other in the optical connector assembly, do not fall apart or spaced apart from each other. .

An optical connector assembly having an alignment member fixture according to the object of the present invention, a pair of connectors having a plurality of holes in which the core wire of the multi-core optical cable is inserted, comprising a ferrule protruding to a predetermined length on one surface,

An alignment member having a through-hole for accommodating the above-described ferrule and a reinforcing member are disposed on one side wall of the body constituting an open rectangular shape, and a pair of elastic bodies spaced a certain distance from each end side thereof are symmetrically coupled to each other. In the multi-core optical cable connecting connector consisting of a case in which a cutout portion cut into a predetermined size between the elastic body and a pair of the connector and the alignment member is inserted and fixed,

When the alignment member is seated in the case, it can be achieved through the fixing pin which is formed in each of the through holes penetrating in the transverse direction of the alignment member and the case, and inserted into the through holes.

1 is an exploded perspective view illustrating a conventional multi-core optical connector assembly.

2 is a cross-sectional view of the main portion taken in a transverse direction in a state where a conventional multi-core optical connector assembly is assembled.

3 is a cross-sectional view of the main portion taken in a longitudinal direction in a state where a conventional multi-core optical connector assembly is assembled.

Figure 4 is a perspective view showing a state in which the alignment member of the multi-core optical connector assembly according to the present invention is coupled.

Figure 5 is a view similar to Figure 3, is a cross-sectional view of the connector assembly coupled to the alignment member according to the present invention.

*** Explanation of symbols for main parts of drawing ***

1: optical cable 10: connector

11: Ferrule 17: Hole

20: alignment member 21: through hole

23: Alignment hole 25: Through hole

27: pin 30: case

32: Elastic body 36: Through-hole

Hereinafter, the multi-core optical connector assembly according to the present invention will be described in detail with reference to the accompanying drawings.

Referring to FIG. 4, FIG. 4 is a perspective view of a multi-core optical connector assembly employing an improved alignment member in the conventional multi-core optical connector assembly cited above, and FIG. 5 is a longitudinal cross-sectional view showing the essential parts thereof. . In addition, the same reference numerals are assigned to the same components as those in the conventional drawings. As can be seen in the drawing, the alignment member 20 has a through hole 21 penetrating in the longitudinal direction therein and another through hole 25 in a direction orthogonal to the through hole 21. It is.

The above-described alignment member 20 is coupled to the connector 10 having each ferrule 11 inserted into the through holes 21 on both sides. The optical fiber 1 is inserted into the ferrule 11, and the cut surface thereof is placed at the end end face of the ferrule 11. As shown in FIG. Therefore, when each connector 10 is coupled to the alignment member 20, both ends of the optical fiber 1 are connected to each other. The alignment member 20 and the connector 10 aligned as described above are seated into the case 30 so that the assembled state is maintained. The elastic bodies 32 are installed at respective corners of both sides of the case 30. To press each connector 10 in a direction facing each other. Then, the through hole 25 formed in the alignment member 20 constitutes the same axis as the through hole 36 formed in the side wall of the case. The fixing pin 27 is inserted into the through hole 25 of the alignment member 20 and the through hole 36 of the case 30.

Referring to the assembly example and the effect of the present invention according to such a configuration as follows.

As shown in FIG. 5, the optical fibers embedded in the respective connectors 10 are connected by the alignment members 20, but as described above, the alignment members may be formed by the elastic force of the elastic body 32. The fixing pins 27 are formed in the through holes 25 and 36, that is, the through holes 36 formed in the case 30 and the through holes 25 formed in the alignment member 20, so that the phenomenon of lifting the 20 is not generated. Insert it through. In addition, although the through holes are not shown in the drawing, they may be formed to cross each cantilever, and through holes may be formed on the sidewalls of the case so as to form an axis parallel to the through holes, and then a fixing pin may be inserted into each through hole. The same effect can be expected.

In this case, both ends of the fixing pin 27 are positioned at the inner diameter of the through hole 36 of the case 30, and the center portion thereof is positioned in the alignment member 20.

As described above, since the multicore optical connector assembly according to the present invention can prevent the impact caused by external impact or elasticity of the elastic body, it provides an effect of stably maintaining the connection of the optical fibers.

Claims (2)

A pair of connectors having a plurality of holes 17 into which the core wire of the optical cable 1 is inserted, including a ferrule 11 protruding at a predetermined length on one surface thereof, and a through hole for receiving the above-described ferrule 11. The reinforcing member 31 is provided on the alignment member 20 having the ball 21 and one side wall of the body constituting an open rectangular shape, and a pair of elastic bodies 32 spaced apart at a predetermined distance from both end sides thereof. Is symmetrically coupled to each other, and has a cutout portion 34 cut to a predetermined size between the elastic body 32, the pair of the connector 10 and the alignment member 20 is inserted into the case 30 In the multi-core optical connector assembly composed of When the alignment member 20 is seated in the case 30, each of the through holes 25 and 36 penetrating in the transverse direction to the wall surface of the alignment member 20 and the case 30, and the A multi-core optical connector assembly having an alignment member fixing pin, characterized in that a fixing pin (27) is inserted into the through hole (25, 36). A pair of connectors having a plurality of holes 17 into which the core wire of the optical cable 1 is inserted, including a ferrule 11 protruding at a predetermined length on one surface thereof, and a through hole for receiving the above-described ferrule 11. The reinforcing member 31 is provided on the alignment member 20 having the ball 21 and one side wall of the body constituting an open rectangular shape, and a pair of elastic bodies 32 spaced apart at a predetermined distance from both end sides thereof. Is symmetrically coupled to each other, and has a cutout portion 34 cut to a predetermined size between the elastic body 32, the pair of the connector 10 and the alignment member 20 is inserted into the case 30 In the multi-core optical connector assembly composed of The through-hole 25 is formed to cross the connector, the case has a through-hole so that the same axis as the through-hole is formed, the alignment member having a fixing pin, characterized in that the fixing pin is inserted into each through-hole. Multicore Optical Splicer Assembly.