JP2513360Y2 - Dual optical connector structure - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of an optical connector composed of a receptacle and a plug to be attached to the receptacle in an optical transmission device or the like, and more particularly to a transmission / reception integrated type dual optical connector structure.

[0002]

2. Description of the Related Art Conventionally, there is no transmission / reception integrated two-way optical connector, and therefore, the following optical connector structures have been arranged to form a transmission / reception pair. 5 (a) and 5 (b) are structural views of the conventional optical connector structure on the receptacle side (a).
Shows a front view and (b) shows a side view thereof.

This is a screw coupling type optical connector (hereinafter referred to as F
It is a conventional example showing a C type optical connector). In the drawing, 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 central portion 5 has a flange so that it can be attached to a housing, and several screw holes 6 are formed around it. Figure 6
FIG. 4 is a side view showing a structure on a plug side to be inserted into the receptacle 3. The tip of the FC type optical connector plugs, ferrule 8 optical fiber 7 is inserted is out collision.
9 is a knob.

With the above construction, 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 one by the rotational coupling like the FC type optical connector described above, but the one by the non-rotational coupling is described below. Type optical connector) is shown. Figure 7
(A), (b) is a structural drawing which shows the adapter of an SC type optical connector, ie, the receptacle side, (a) is a front view,
(B) shows the same side view.

In the figure, 11 is a housing, 12 is two elastic locking claws, and 13 is a split sleeve. FIG. 8 is a perspective view showing the plug side of this SC type optical connector. The end of the SC type optical connector plug is an optical fiber 1
Ferrule 15 4 is inserted is out collision. 16 is a knob.

[0007] In the above configuration, when inserting the knob 16 of the plug side into the housing 11, held engaged on both sides of the locking claw 12 is knob 16. Although this SC type optical connector is excellent in mounting density, operability of assembling, and economical efficiency, it is the present situation that it is not applied as a receptacle of a module holder.

[0008]

As described above, in the optical connector having the module holder, as a result, FC
Since it becomes the optical connector, there is a problem that mounting density and operability of assembly are poor when forming a pair. The present invention has been made to solve such a problem.
Thus, it is an object of the present invention to provide a transmission / reception integrated dual-type optical connector which can increase the mounting density of a pair of module holders and their receptacles and has a simple structure .

Another object of the present invention is to improve the operability of the assembly by obtaining a structure in which the assembly of the optical connector in which the paired module holders are integrated is made one-touch.

[0010]

In order to achieve this object, the present invention comprises a transmission / reception integrated type receptacle and a transmission / reception integrated type plug assembled to the receptacle , wherein the receptacle comprises a first receptacle housing, this
Is fixedly connected to the rear side of the first receptacle housing.
Second receptacle housing with a collar on one side of the outer periphery
And the other side as a straight part
The second receptor so that the rate portions closely face each other and face each other.
Module housing inserted in parallel with the
Fixed to the rear side of one module holder
After the light emitting package and another module holder
And a first light receiving package fixed to the
The second receptor is press-fitted into the receptacle housing and is the second receptacle.
Between the front and rear end faces of the housing.
A press-fitting plate for sandwiching and fixing the flange portion of the da, and the first receptacle.
Two on the press-fitting plate along the inner surface of the tuckle housing
Is provided and is inserted into the first receptacle housing.
With an elastic locking claw that locks to the inserted plug
The plug includes a light emitting package and a light receiving package.
The two optical fibers corresponding to the
Two ferrules, each tip of which is
Structure that is integrated so that it can be inserted into the tip of the holder
And said that the content was.

[0011]

[Action] more than I that the present invention to the configuration, a pair of modules
Make sure that the straight parts of the holders are
Since the second receptacle housing is inserted in parallel and assembled , the pin between the pair of modules is assembled.
A very small switch with a high packing density
The optical connector is obtained and the receptacle is
Receptacle housing and second receptacle housing
And the light emitting package and the light receiving package are fixed.
Press-fit plate with a pair of module holders and locking claws
Since it is composed of and, it can be realized with a simple structure. Also bullets
Since the plug is locked and fixed by the two locking claws ,
It functions as a push-pull type receptacle and can be attached and removed with one touch by inserting and removing the plug.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments will be described below with reference to the drawings. 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 the first record.
The receptacle housings I and 22 which are the receptacle housings are press-fitted into the receptacle housing I21.
Press-fitting plate , 22a is inside the receptacle housing I21
Elasticity provided on the press-fitting plate 22 along the surface 2
Locking claw of book, 23 is module holder, 24 is second
Receptacle housing I that is a receptacle housing
I and 25 are light emitting packages, 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 at the central portion of the module holder 23, a flange portion 23a for abutting is formed on one side of the outer periphery and the other side is formed. and has a straight-through section 23b. With this, when pairing,
The pitch between the module holders 23 can be made extremely small by making the straight portions 23b close to each other and face each other . In addition, this shape also has a role of preventing rotation.

[0014] After inserting the light receiving and emitting package 25 and 26 on the rear side of the module holder 23, fixed with the resin 4 or welding 5. Light emitting and receiving package 25,
The module holder 23 in which 26 is assembled is inserted into the holes of the receptacle housings II 24, respectively. Then, the press-fitting plate 22 is press-fitted into the receptacle housing I21, the receptacle housing I24 is fitted and connected to the rear portion of the receptacle housing I21, and the entire bonding surface of each other is fixed with the adhesive 28.

The module holder 23 has a collar portion 23a.
Is the press-fitting plate 22 and the front end of the receptacle housing II 24
It has a structure that is fixed by being sandwiched between the surface . Receptacle housing I21 and receptacle housing I
As another example of the bonding method of I24, by welding a part of both surfaces of the connection portion, when a problem occurs in the housing portion, the module holder 23 can be removed by removing the welding portion, and thus the replacement is possible. .

FIG. 4 is a perspective view showing a plug structure corresponding to the above receptacle. This is the basic structure that is integral type for receiving and emitting light are those combined two the SC type optical connector plug structure of Figure 8, the distal end, the optical fiber 34 is Shi out collision ferrule 35 inserted ing. 36
A knob and 37 are rubber holders. With the above configuration, when the plug-side knob 36 is inserted into the receptacle housing I21, the locking claws 22 lock and hold the knob 36 on both sides.

[0017]

[Devised effect] As following the above Description The present invention includes a receptacle receiving integrated, is constructed from a plug of the transceiver integrated assembled thereto, said receptacle, a first Les
The receptacle housing and this first receptacle how
A second receptacle that is connected and fixed to the rear side of the housing
Form a flange on one side of the outer circumference and the other side of the housing.
As straight parts, the straight parts are close to each other and face each other.
Parallel to the second receptacle housing so that
A pair of inserted module holders and one module
Separate from the light-emitting package fixed on the rear side of the holder.
For receiving light fixed to the rear side of one of the module holders
Press the package and the first receptacle housing together.
And a front end surface of the second receptacle housing
And the flanges of both module holders between
Press-fitting plate and inner surface of the first receptacle housing
Are provided on the press-fitting plate so as to extend along the
The plug inserted into the receptacle housing of
And a locking claw having elasticity to stop the plug,
Two corresponding to the light emitting package and the light receiving package
Ferrules with each optical fiber inserted
Insert each tip into the tip of both module holders
As described above, the structure is integrated.

Therefore, according to the present invention, a pair of modules
So that the straight parts of the
Since it can be inserted in the second receptacle housing in parallel with the second receptacle housing and assembled ,
A very small switch with a high packing density
With the optical connector can be obtained, the receptacle, the first
Second receptacle coupled to the receptacle housing
Light emitting package and light receiving package in the housing
Insert the fixed pair of module holders and
Press-fit the press-fitting plate with the locking claws into the tackle housing.
The press-fitting plate and the end face of the second receptacle housing.
Assemble by sandwiching the collar of the module holder with and
The structure is simple and easy to assemble.
The effect of realizing a septum is also obtained.

In addition, two elastic locking claws are used for the plug.
For locking and fixing the
Functioning as a one-touch device
The effect that it can be removed and removed , improving operability
Can also be obtained.

[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 (72) Inventor Takashi Oya 1-7-12 Toranomon, Minato-ku, Tokyo Oki Electric Industry Co., Ltd. (56) Reference JP 61-126510 (JP, A) Actual Kai 57-74413 (JP, U)

Claims (1)

(57) [Scope of utility model registration request] 1. A transmission / reception integrated type receptacle and a transmission / reception integrated type plug assembled to the receptacle . The receptacle is connected and fixed to a first receptacle housing and a rear portion of the first receptacle housing.
And a second receptacle housing that is formed with a collar portion on one side of the outer peripheral portion and a straight portion on the other side.
As the straight parts of each other closely approach and face each other
Note that the one inserted in parallel with the second receptacle housing
A pair of module holders and a light emitting part fixed on the rear side of one module holder.
Package and light receiver fixed on the rear side of another module holder
Package for press-fitting into the first receptacle housing and
Between the front end face of the second receptacle housing and the both
A press-fitting plate for fixing the flange portion of the module holder so as to be sandwiched between the module holder and the inner surface of the first receptacle housing.
Two press-fitting plates are provided on the first receptacle.
The elasticity that locks to the plug inserted into the housing.
And a locking claw having, wherein the plug corresponds to the light emitting package and the light receiving package.
Two ferrules with two optical fibers inserted
Insert each tip into the tip of both module holders
The dual optical connector structure is characterized in that it has a structure integrally formed as described above .