JPH0552802U - Dual optical connector structure - Google Patents

Abstract

(57) [Abstract] [Purpose] An object of the present invention is to provide a transmission / reception integrated dual optical connector having a high mounting density, and to improve operability by making one-touch assembly in the dual connector. [Structure] In a two-way optical connector structure composed of a transmission / reception integrated type receptacle and a transmission / reception integrated type plug assembled to the receptacle, the receptacle has two sleeves 22.
The two sides of the transmission / reception integrated plug are clamped, and a pair of module holders 23 are detachably attached to the sleeve. One side of the abutting flanges 23a of the pair of module holders 23 is cut away to form a straight portion 23.
b, the straight portions 23b are connected to each other, and the module holder 23 is assembled.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a structure of an optical connector including a receptacle and a plug attached to the receptacle in an optical transmission device and the like, and more particularly to a structure of a dual optical connector of a transmission / reception integrated type.

[0002]

[Prior Art]

 Conventionally, there is no transmission / reception integrated dual optical connector, and therefore, the following optical connector structures are arranged to form a transmission / reception pair. 5A and 5B are structural views of a conventional optical connector structure on a receptacle side, FIG. 5A is a front view, and FIG. 5B is a side view thereof.

This is a conventional example showing a screw coupling type optical connector (hereinafter abbreviated as FC type optical connector). In the figure, 1 is a light emitting package, 2 is a split sleeve, 3 is a receptacle, 4 is resin, and 5 is welding. The package 1 on the light emitting side is put in the receptacle 3 and fixed with resin 4 and welding 5. It is a module. This structural example has the same structure on the light receiving side.

The tip 3a of the receptacle 3 is of a screw type, and a flange is formed in the central portion 5 so that the central portion 5 can be attached to a housing, and several screw holes 6 are formed around it. There is. FIG. 6 is a side view showing the structure on the plug side to be inserted into the receptacle 3. At the tip of the FC type optical connector plug, a ferrule 8 having an optical fiber 7 inserted therein is projected. 9 is a knob.

With the above structure, when connecting to the receptacle 3, the ferrule 8 is inserted into the sleeve 2 and screwed. The structure of the receptacle is not limited to the rotational coupling like the FC type optical connector described above, but may be the non-rotational coupling. Hereinafter, as an example of the receptacle by the non-rotational coupling, a push-pull coupling type optical connector (hereinafter referred to as SC Type optical connector). 7 (a) and 7 (b) are structural views showing the adapter and the receptacle side of the SC type optical connector. FIG. 7 (a) is a front view and FIG. 7 (b) is a side view of the same.

In the figure, 11 is a housing, 12 is a sleeve, and 13 is a split sleeve. FIG. 8 is a perspective view showing the plug side of this SC type optical connector. At the tip of the SC type optical connector plug, the ferrule 15 into which the optical fiber 14 is inserted is protruding. 16 is a knob.

With the above configuration, when the knob 16 on the plug side is inserted into the housing 11, the sleeve 12 holds the knob 16 on both sides. Although this SC type optical connector has excellent mounting density, operability of assembly, and economy, it is not currently applied as a receptacle for module holders.

[0008]

[Problems to be solved by the device]

 As described above, the optical connector having the module holder is a FC type optical connector as a result, so that when forming a pair, there is a problem that the mounting density and the operability of assembly are poor. In view of the above problems, the present invention provides a structure in which a pair of module holders and their receptacles are integrated with each other by maximizing the mounting density, and provides a two-fiber optical connector of a transmitter / receiver integrated type having a high mounting density. The purpose is to

Further, another object of the present invention is to obtain a configuration in which the assembly of the optical connector in which the paired module holders are integrated is made one-touch, and to improve the operability of the assembly.

[0010]

[Means for Solving the Problems] To achieve the above object, the present invention reduces the pitch for arranging module holders and combines non-rotationally coupled receptacles. That is, according to the present invention, in a two-way optical connector structure composed of a transmission / reception integrated type receptacle and a transmission / reception integrated type plug assembled to the receptacle, the receptacle holds two sides of the transmission / reception integrated type plug with two sleeves. Attach a pair of module holders to this sleeve so that they can be removed freely, cut one side of the brim for abutting the pair of module holders into straight parts, and connect the straight parts together to assemble the module holder. Is characterized by.

[0011]

[Action]

 With the above configuration, according to the present invention, the pitch between the pair of modules can be made extremely small by connecting the straight portions and assembling the module holders. Furthermore, since the plug can be held between two sleeves, it functions as a push-pull type receptacle, and can be attached and removed with one touch by inserting and removing the plug.

[0012]

【Example】

 Embodiments will be described below with reference to the drawings. FIG. 1 is a top sectional view showing the structure of a receptacle according to an embodiment of the present invention, and FIG. 2 is a perspective view thereof. In the figure, 21 is a receptacle housing I, 22 is a sleeve, 23 is a module holder, 24 is a receptacle housing II, 25 is a light emitting package, 26 is a light receiving package, and 27 is a split sleeve.

3A and 3B are structural views of the module holder 23. FIG. 3A is a front view and FIG. 3B is a side view. The light-receiving and light-emitting module holder 23 has the structure shown in FIG. 3, and a flange 23a for abutting is projected from the central portion of the module holder 23, and one side is cut out to form a straight portion 23b. One side has a curved shape. Thus, in the case of forming a pair, the pitch can be made extremely small by connecting the straight portions 23b that are in contact with each other. This shape also has the role of preventing rotation.

After inserting and receiving the light emitting and receiving packages 25 and 26 into the module holder 23, they are fixed with resin 4 or welding 5. The module holder 23 in which the light emitting / receiving packages 25 and 26 are assembled is inserted into the holes of the receptacle housing II 24, respectively. Then, the sleeve 22 is assembled in the receptacle housing I21, and the entire bonding surface of the receptacle housing I21 and the receptacle housing II24 is fixed with the adhesive 28.

The module holder 23 and the sleeve 22 are sandwiched and fixed by a receptacle housing I21 and a receptacle housing II24. As another example of the method for adhering the receptacle housing I21 and the receptacle housing II24, by welding a part of both sides of the connection part, when the housing part becomes defective, the module holder 23 is removed by removing the weld part. As it can be removed, it can be replaced.

FIG. 4 is a perspective view showing a plug structure corresponding to the receptacle. This is an integrated type for receiving and emitting light, and the basic structure is a combination of two SC type optical connector plug structures of FIG. 8, and a ferrule 35 with an optical fiber 34 inserted is projected at the tip. There is. 36 is a knob and 37 is a rubber holder. With the above configuration, when the plug-side knob 36 is inserted into the receptacle housing I21, the sleeve 22 holds the knob 36 on both sides.

[0017]

[Effect of the device]

 As described in detail above, the present invention provides a two-way optical connector structure composed of a transmission / reception integrated type receptacle and a transmission / reception integrated type plug that is assembled to the receptacle. The receptacle has two sleeves for the transmission / reception integrated type. Hold both sides of the plug, and assemble a pair of module holders to this sleeve in a removable manner. Since the module holders are assembled with each other, the pitch for arranging the module holders can be reduced and a non-rotationally coupled receptacle can be combined.

As a result, it becomes possible to integrate the pair of module holders and their receptacles at the highest packing density, and there is an effect of providing a transmission / reception integrated two-way optical connector having a high packing density. Furthermore, since the receptacle holds both sides of the transmission / reception integrated plug with two sleeves, a non-rotationally coupled receptacle can be combined.

As a result, the optical connector in which the module holders of the above pair are integrated can be assembled with one touch, and there is an effect that the operability of the assembly is enhanced.

[Brief description of drawings]

FIG. 1 is a top sectional view showing an embodiment of the present invention.

FIG. 2 is a perspective view showing an embodiment of the present invention.

FIG. 3 is a structural view of a module holder according to an embodiment of the present invention.

FIG. 4 is a structural diagram of a plug according to an embodiment of the present invention.

FIG. 5 is a structural diagram of a conventional FC type optical connector structure on a receptacle side.

FIG. 6 is a side view showing a structure of a conventional FC type optical connector structure on a plug side.

FIG. 7 is a structural diagram of a conventional SC type optical connector structure on a receptacle side.

FIG. 8 is a perspective view showing a structure of a conventional SC type optical connector structure on a plug side.

[Explanation of symbols]

 21 Receptacle Housing I 22 Sleeve 23 Module Holder 23a Collar 23b Straight Part 24 Receptacle Housing II 25 Light Emitting Package 26 Light Receiving Package 27 Split Sleeve

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification number Reference number within the agency FI technical display location H01S 3/18 9170-4M (72) Creator Takashi Oya 1-7-12 Toranomon, Minato-ku, Tokyo No. Oki Electric Industry Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. A dual optical connector structure composed of a transmission / reception integrated type receptacle and a transmission / reception integrated type plug assembled to the receptacle, wherein the receptacle holds two sides of the transmission / reception integrated type plug by two sleeves. A feature is that the pair of module holders is detachably attached to the sleeve, one side of the flange for abutting the pair of module holders is notched to form a straight portion, and the straight portions are connected to each other to attach the module holder. Dual optical connector structure.