KR200257489Y1 - Adapter for interconnecting optical fiber connectors - Google Patents

Abstract

The present invention provides an adapter for connecting a pair of opposing optical fiber connectors parallel to the optical axis. The adapter is integrally formed so as to fix the housing in which the first opening into which the optical fiber connector is inserted is formed on one side and the second opening on the other side, and the optical fiber connector coupled through the first opening and the second opening of the housing, respectively. And a receptacle which is coupled to the housing via a second opening. The housing has a plate portion formed in the middle portion and having a third opening formed therein, and a first portion into which a sleeve into which the optical fiber is inserted is inserted through the hole formed in the center formed on the same line as the optical axis and protruding from the plate portion in the first opening direction. It has a boss section. The receptacle is formed to protrude to one side from the middle portion and to secure the second boss portion formed in the same shape so as to be symmetric to the first boss portion when the receptacle is coupled to the housing, and to fix the optical fiber connector coupled through the second opening. A second hook protruding in the same direction as the second boss and a second hook protruding in a direction opposite to the second hook to fix the optical fiber connector coupled through the first opening when the receptacle is coupled to the housing; And a first hook which, when the receptacle is coupled to the housing, is placed in a position opposite to the second hook via the third opening.

Description

Adapter for the connection of optical fiber connectors {ADAPTER FOR INTERCONNECTING OPTICAL FIBER CONNECTORS}

The present invention relates to an adapter for connecting an optical fiber connector, and more particularly to an adapter for connecting an optical fiber connector used for fixing a pair of individual optical fiber connectors.

Optical fiber devices utilize single or multiple strands of fibers with inner circular glass cores coated with peripheral coatings of different refractive indices. Light is transmitted along the core and totally reflected from the interface between the core and the cladding. The device can be used as a transmission line to deliver information-bearing light energy. The transmission line may be formed from a single fiber or may comprise a plurality of fibers bundled together. In addition, several transmission lines may be arranged in parallel for simultaneous transmission of information along separate lines.

Fiber optic connectors, on the other hand, are used in opposing fiber ends to provide a means for easily joining and separating the fiber ends. Rather than providing male (plug) and female (receptacle) connectors common in electrical connector technology, optical fiber connectors not only interconnect a pair of opposing optical fiber connectors, but also provide optical fiber protection to prevent transmission losses at certain interconnect boundaries. Interconnected by adapters for easy alignment.

One form of optical fiber connector design is identical to the 'SC' connector first manufactured by Nippon Telegraph and Telephone Co. of Japan. This type of interconnection is based on the concept of push-pull. Pluggable couplings or connectors terminate at opposite fiber ends. When an adapter is used, the adapter is designed as a double-ended receptacle for receiving opposing fiber optic connectors but in a push-pull fashion. In order to interconnect the adapter and the connector, the connector and the adapter have a complementary interlocking latch means such as a hooked latch arm for engaging the latch boss.

Korean Patent No. 0151759 shows an example of an adapter for interconnecting a pair of opposing optical fiber connectors. 1 is an exploded perspective view showing the adapter proposed in this patent.

Referring to FIG. 1, the conventional adapter 100 has housings 110 and 110 ′ that are bisected. The two housings 110 and 110 'are coupled to each other by a fastening structure consisting of hooks 112 and 112' and recesses 114 and 114 '. Of course, the two housings 110 and 110 'are formed to be symmetrical to each other, and the hooks 112 and 112' and the recesses 114 and 114 'are also formed to be symmetrical to be coupled to each other. Receptacles 120 and 120 'for fixing the optical fiber connector are coupled to the two housings 110 and 110'. The receptacles 120 and 120 'are bisected and formed to be symmetrical to each other. Therefore, each of the two receptacles 120 and 120 'is inserted into and coupled to the housings 110 and 110' corresponding to each other, and is supported and fixed by the fastening force of the housings 110 and 110 '. The two receptacles 120 and 120 'are coupled with a sleeve 130 for insertion of an optical fiber. The adapter 100 having such a configuration first positions each receptacle 120, 120 ′ in the corresponding housing 110, 110 ′ and inserts the sleeve 130 into any one receptacle 120, 120 ′ and then the two housings 110, 110. By combining ').

However, such a conventional adapter 100 has a problem that the overall rigidity is well broken. In particular, since the damage mainly occurs in the hooks 112 and 112 'and the recesses 114 and 114' for fastening the housings 110 and 110 ', the entire adapter 100 cannot be used.

The present invention is to solve such a problem, the purpose is to provide an adapter for the connection of a new type of optical fiber connector that can solve the problem that the conventional adapter is divided into two parts as a whole, the stability of the product is weakened. .

1 shows an adapter for the connection of a conventional fiber optic connector;

Figure 2 is an exploded perspective view showing the adapter for the connection of the optical fiber connector according to a preferred embodiment of the present invention;

3 is a cross-sectional view of the housing taken along line 3-3 in FIG. 2;

4 is a cross-sectional view of the housing taken along line 4-4 in FIG. 3;

5 is a side view of an adapter according to a preferred embodiment of the present invention;

6 is a half sectional view of the adapter taken along line 6-6 in FIG.

* Code descriptions for the main parts of the drawings

10: adapter 20: housing

50: receptacle 70: sleeve

90: pin

According to a feature of the present invention for achieving the above object, the present invention provides an adapter for the connection of the optical fiber connector for connecting a pair of optical fiber connectors facing each other in parallel to the optical axis. The adapter is formed integrally with a housing having a first opening on one side and a second opening formed on the other side, and an optical fiber connector coupled through the first opening and the second opening of the housing. A receptacle coupled to the housing through the second opening for securing each. The housing includes a plate portion formed at an intermediate portion and having a third opening formed therein, and a sleeve into which the optical fiber is inserted through a hole formed in the center formed on the same line as the optical axis and protruding from the plate portion in the first opening direction. The losing has a first boss portion. The receptacle is formed to protrude from the middle portion to one side and the second boss portion formed in the same shape so as to be symmetrical with the first boss portion when the receptacle is coupled to the housing, and the optical fiber connector coupled through the second opening A second hook protruding in the same direction as the second boss to fix the second hook, and the second hook to fix the optical fiber connector coupled through the first opening when the receptacle is coupled to the housing. A first hook formed protruding in an opposite direction and positioned in a position opposite to the second hook through the third opening when the receptacle is coupled to the housing.

The present invention as described above may further include a stopper member for preventing the receptacle from being naturally separated from the housing when the receptacle is coupled to the housing. At this time, the stopper member is preferably a first stopper which is formed in both inner sides of the housing in close proximity to the plate portion in the direction in which the receptacle is inserted, and when formed in the middle portion of the receptacle and the receptacle is coupled to the housing A second stopper protruding to be positioned between the first stopper and the plate portion, and a pin coupled to the housing through a through hole formed in the housing and coupled between the first stopper and the second stopper. have.

The present invention includes a clip for fixing the adapter to the device, the adapter is installed as the preferred embodiment , the housing is coupled to the clip so that the first opening side is located inside the device A seat may be formed on the second opening side.

Hereinafter, an adapter for connecting an optical fiber connector according to a preferred embodiment of the present invention will be described in detail with reference to FIGS. 2 to 6, and the same components for performing the same function in FIGS. Include a reference number. In the drawings, reinforcing ribs (plates) and holes for coupling and fixing the main elements are briefly or omitted. The illustration of parts that can be omitted is omitted, and shown in the center of the parts related to the present invention. In particular, there are parts where the size ratio between the elements is somewhat different or the sizes between the components coupled to each other are different, but the difference in representation of the drawings is easily understood by those skilled in the art. A separate description is omitted.

2 is an exploded perspective view showing an adapter for connecting an optical fiber connector according to a preferred embodiment of the present invention.

Referring to FIG. 2, the adapter 10 according to the present invention includes a housing 20, a receptacle 50, a sleeve 70, a pin 90, and a holder 80. Among these components, the housing 20, the receptacle 50, and the sleeve 70 are formed of a plastic material, and the pin 90 and the holder 80 are formed of a metal material. Of course, the material of these parts may be other types of materials. The housing 20 is formed integrally. Meaning that the housing 20 is formed integrally means that the housing 20 according to the present embodiment is integrally formed and manufactured in the mold itself, whereas the conventional adapter has a structure in which the adapter is separated on both sides. The housing 20 has a structure in which all of the receptacle 50, the sleeve 70, the pin 90, and the holder 80 are coupled to each other.

3 and 4 are views for showing the configuration of the housing 20 according to the present invention in more detail.

2 to 4, the housing 20 has a first opening 24 and a second opening 22 on both sides thereof. These first and second openings 24, 22 provide a passageway through which the optical fiber connector is inserted. Inside the housing 20 is formed a space for accommodating the optical fiber connector inserted through the first and second openings 24 and 22. In addition, the overall shape of the housing 20 may be modified to match the optical fiber connector to be coupled. For example, in the present embodiment, the housing 20 may have a rectangular shape but may have a circular shape or another shape, and the receptacle 50 and other components, which will be described later, may also have a shape coupled thereto. The plate part 26 is formed in the inner middle part of this housing 20. The plate portion 26 is formed with a third opening 27 (see FIG. 6) into which the first hook 54 of the receptacle 50 to be described later is inserted and engaged. The plate portion 26 is formed with a first boss portion 28 for inserting while supporting the optical fiber of the optical fiber connector inserted through the first opening 24. The first boss portion 28 protrudes from the plate portion 26 in the direction of the first opening 24. The first boss portion 28 has a hole formed in the center of the same line as the optical axis 12 in which the optical fiber is located in a straight line. This hole is coupled with a sleeve 70 into which the optical fiber is supported and inserted.

The receptacle 50 fixes the optical fiber connectors respectively coupled through the first opening 24 and the second opening 22 of the housing 20. To this end, the receptacle 50 has a first hook 54 and a second hook 52 protruding from both sides of the middle plate 56 on both sides, and one side (second hook 54) of the middle plate 56. Direction) and a second boss portion 58 formed in the same shape so as to be symmetric to the first boss portion 28 when the receptacle 50 is coupled to the housing 20. The second hook 52 protrudes in the same direction as the second boss portion 58 to fix the optical fiber connector coupled through the second opening 22. The first hook 54 is formed to protrude in a direction opposite to the second hook 54 to fix the optical fiber connector that is coupled through the first opening 24 when the receptacle 50 is coupled to the housing 20. And, when the receptacle 54 is coupled to the housing 20, it is placed in a position opposite to the second hook 52 through the third opening 27.

Thus, the adapter 10 according to the present invention has a housing 20 having a first boss portion 28, a receptacle 50 having a second boss portion 58, and first and second hooks 54, 56. It consists of two optical fiber connectors.

Meanwhile, the adapter 10 of the present invention may further include a stopper member to prevent the receptacle 50 from being naturally separated from the housing 20 when the receptacle 50 is coupled to the housing 20. This stopper member can be configured in a variety of forms but in this embodiment a pin 90 is used. Looking in more detail, the stopper member is composed of a first stopper 36 and a second stopper 60 formed in the middle portion of the receptacle 50 respectively formed on both inner sides of the housing 20 together with the pin 90. do. The first stopper 36 is formed close to the plate portion 26 in the direction in which the receptacle 50 is inserted. The second stopper 60 is formed to protrude so that the receptacle 50 is positioned between the first stopper 36 and the plate portion 26 when the receptacle 50 is coupled to the housing 20. The pin 90 is vertically inserted into the housing 20 through a horizontal portion 94 coupled to the groove 32 formed in the housing 20 and through holes formed at both sides of the groove 32. Section 92. This pin 90, as shown in FIG. 6, is located between the first stopper 36 and the second stopper 60 to prevent the receptacle 50 from naturally leaving the housing 20.

5 is a side view of an adapter according to a preferred embodiment of the present invention, and FIG. 6 is a half sectional view of the adapter taken along line 6-6 in FIG.

2, 5 and 6, the assembly of the adapter 10 according to the present invention, first, the sleeve 70, the first boss portion 28 of the housing 20 or the second boss of the receptacle 50 It inserts into the part 58. At this time, the sleeve 70 is inserted into the first or second boss portion 28, 58 so as not to fall to the other side. In this state, while the receptacle 50 is inserted into the housing 20 through the second opening 22, the first hook 54 of the receptacle 50 is placed on the other side of the plate portion 26 through the third opening 27. To be inserted into the The pin 90 is then inserted into the groove 32 of the housing 20 so that the vertical portion 92 is fully inserted. The adapter 10 thus assembled is installed in a device for connecting the optical fiber connector. On the other hand, the adapter 10 has a portion for effectively and stably fixing the adapter 10 to the device to be installed.

Meanwhile, in the present embodiment, the adapter 10 has a seat 30 and a screw to which the clip 80 is coupled to the housing 20 so as to be fixed to a device installed with a clip 80 or a screw (not shown). The flange 34 is formed with a hole for. In particular, the present invention allows the adapter 10 to be coupled such that the first opening 24 side is positioned in the device (FDF, etc.) in which the adapter 10 is installed. This can prevent damage and failure of the adapter 10 caused by the flow of the receptacle 50 during connection and disconnection of the optical connector frequently generated outside the device. That is, by connecting the external optical connector that is frequently coupled and separated through the first boss 28 integrally formed in the housing 20, it is intended to prevent the problems that may occur during continuous use. To this end, the housing 20 forms a seat 30 to which the clip 80 is coupled to the second opening 22 side such that the first opening 24 side is positioned inside the device.

As described above, the adapter for the connection of the optical fiber connector according to a preferred embodiment of the present invention is shown according to the above description and drawings, but this is only an example and within the scope not departing from the technical idea of the present invention. It will be appreciated by those skilled in the art that various changes and modifications are possible.

According to the adapter for connecting the optical fiber connector according to the present invention, since the housing forming the outer side of the adapter is integrally formed, it is possible to effectively maintain the rigidity of the product due to external load or the like than the conventional detachable type. In addition, since the number of parts used can be reduced, production efficiency can be maintained and product cost can be lowered.

Claims (4)

An adapter for connection of an optical fiber connector for connecting a pair of optical fiber connectors opposed to each other in parallel to an optical axis, A housing formed integrally with a first opening formed at one side to which the optical fiber connector is inserted and a second opening formed at the other side; A receptacle coupled to the housing through the second opening for respectively fixing the optical fiber connector coupled through the first opening and the second opening of the housing; The housing includes a plate portion formed at an intermediate portion and having a third opening formed therein, and a sleeve into which the optical fiber is inserted through a hole formed in the center formed on the same line as the optical axis and protruding from the plate portion in the first opening direction. A losing first boss portion, The receptacle is formed to protrude to one side from the middle portion and the second boss portion is formed in the same shape so as to be symmetrical with the first boss portion when the receptacle is coupled to the housing, the optical fiber connector coupled through the second opening A second hook protruding in the same direction as the second boss to fix the second hook, and the second hook to fix the optical fiber connector coupled through the first opening when the receptacle is coupled to the housing. An adapter for connection of an optical fiber connector, the first hook being formed to protrude in an opposite direction and placed in a position opposite to the second hook through the third opening when the receptacle is coupled to the housing; . The method of claim 1, And a stopper member for preventing the receptacle from being naturally separated from the housing when the receptacle is coupled to the housing. The method of claim 2, The stopper member may include a first stopper proximate to the plate portion in the direction in which the receptacle is inserted and formed at both inner sides of the housing; A second stopper formed at an intermediate portion of the receptacle and protruding to be positioned between the first stopper and the plate portion when the receptacle is coupled to the housing; And a pin coupled to the housing through a through hole formed in the housing, the pin being coupled between the first stopper and the second stopper. The method according to any one of claims 1 to 3, Includes a clip for fixing the adapter to the device in which the adapter is installed, The housing is an adapter for connecting the optical fiber connector, characterized in that the seat is formed on the second opening side is coupled to the clip so that the first opening side is located inside the device.