JPS6318005Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a casing for an optical communication device used in the field of optical communication.

Conventional Structure and Problems Generally, a plug-in type optical communication device unit, which is inserted into a unit case, is equipped with an electrical connector terminal and an optical connector receptacle side.

If this optical connector receptacle were located on the front of the unit, there would be a risk that the connected optical connector plug would be hit by an object or the optical connector plug would be inadvertently pulled out, so the optical connector receptacle is often located near the electrical connector terminal, that is, on the side of the unit that is inserted.

In this case, the optical connector plug had to be connected from behind the unit case, and there was a risk that the unit could be pulled out of the unit case with the optical connector plug still connected, damaging the optical fiber.

FIG. 1 shows a conventional example. 1 is unit, 2
is an electrical connector terminal, 3 is an optical connector receptacle, 4 is an optical connector plug, 5 is an optical fiber, 6
7 is a unit case, 7 is an electrical connector, and 8 is a through hole.

This figure shows what happens when an attempt is made to pull out the unit 1 without removing the optical connector plug 4. In this example, optical connector receptacle 3
In this example, the optical fiber 5 hits the edge of the through hole 8 from which it protrudes, and the optical fiber 5 is damaged.

Purpose of the invention In view of the above-mentioned drawbacks, the present invention provides an optical connector receptacle on the unit so that its optical axis is at an angle with the direction in which the unit is inserted.If the optical connector plug is left connected, the optical connector plug itself becomes an obstacle and the unit is An object of the present invention is to provide a casing for an optical communication device having a mechanism that prevents it from being pulled out from the unit case.

Structure of the invention The optical connector receptacle is attached to the unit with its optical axis at an angle with the direction in which the unit is inserted into the unit case, and the optical connector plug is installed in the unit case while the unit is housed in the unit case. By connecting with the optical connector receptacle through the through hole,
If the optical connector plug remains connected to the optical connector receptacle, even if an attempt is made to pull it out from the unit and the unit case, the optical connector plug will hit the edge of the through hole and will not be pulled out.

DESCRIPTION OF EMBODIMENTS The present invention will be described below with reference to the drawings. 2 to 5 show the first embodiment of the present invention, and the same numbers as those in the drawings of the conventional example correspond to those in the conventional example. An optical connector receptacle 3 is attached to the side of the unit 1. In Figure 2, unit 1 is connected to unit case 6.
FIG. 3 is an enlarged view of the vicinity of the through hole 8, showing a state in which the optical connector plug 4 is connected to the optical connector receptacle 3. 9 represents the edge of the through hole 8. 4 shows the unit 1 pulled out from the unit case 6, and FIG. 5 is an enlarged view of the vicinity of the through hole 8. As shown in FIG. 5, the optical connector receptacle 3 attached to the unit 1 is close to the unit case 6 but is attached so as not to come into contact with the unit case 6, so that it is difficult to insert the unit 1 into the unit case 6. , there is no problem with extraction. On the other hand, as is clear from FIG. 3, in a state where the optical connector plug 4 is connected to the optical connector receptacle 3 through the through hole 8, even if the unit 1 is moved laterally, the side surface of the optical connector plug 4 will not be connected to the through hole. unit 1 cannot be moved laterally. Therefore, the unit 1 cannot be pulled out from the unit case 6 while the optical connector plug 4 is connected.

FIG. 6 shows a second embodiment of the invention. Generally, optical communication devices are often built into racks, etc., but in that case, other cases are located above, below, left and right of the case, so it is undesirable for the optical fibers to protrude from the sides, and it is preferable to have the optical fibers protrude from the rear. It will be done. In this example, in consideration of this point, the optical connector receptacle 3 is provided at a position away from the side surface. Although it is functionally the same as the first embodiment, if the optical connector receptacle 3 is located at this position, the optical fiber 5 can be brought out to the rear of the unit case 6 by bending the optical fiber 5.

FIG. 7 shows a third embodiment of the invention. The purpose is the same as in the second embodiment, which is to bring out the optical fiber 5 to the rear of the housing. In the first and second embodiments described above, the optical connector receptacle 3 is attached to the side surface of the unit 1 so that the optical axis is approximately 90 degrees to the direction of insertion and withdrawal of the unit 1, but this angle is slightly smaller. Even if it becomes thinner, there is no problem in terms of functionality. Furthermore, in the second embodiment, the bending of the optical fiber 5 becomes large and the space is wasted. Therefore, in this example, by reducing the mounting angle of the optical connector receptacle 3 to a functionally acceptable level, the bending of the optical fiber 5 is small and the waste of space is also small.

Effects of the invention As described above, in this invention, if the optical connector receptacle is inserted into the side of the unit and attached at an angle in a direction different from the direction in which it is pulled out, and the optical connector plug is connected through the through hole of the unit case, Even if an attempt is made to pull out the unit from the unit case, the side surface of the optical connector plug hits the edge of the through hole and cannot be pulled out, so it is possible to prevent the unit from being pulled out by mistake and damaging the optical fiber.

[Brief explanation of the drawing]

FIG. 1 is a structural diagram showing a conventional example, FIGS. 2 to 5 are structural diagrams showing a first embodiment of the optical communication device casing of the present invention, and FIG. 6 is a structural diagram showing a second embodiment of the same. FIG. 7 is a structural diagram showing the third embodiment. 1...Unit, 2...Electrical connector terminal, 3
...Optical connector receptacle, 4...Optical connector plug, 5...Optical fiber, 6...Unit case, 7...Electrical connector, 8...Through hole, 9...
Edge of through hole.

Claims (1)

[Scope of utility model registration request] A casing for an optical communication device comprising a first box body having an optical connector receptacle connected to an optical connector plug provided at the end of an optical fiber, and a second box body into which the first box body can be inserted and housed. It's hot,
The optical connector receptacle is attached such that the optical axis is at an angle with the insertion direction of the first box into the second box, and the first box is housed in the second box. A through hole is provided in the second box so that the optical connector plug and the optical connector receptacle can be connected in a state where the optical connector plug and the optical connector receptacle are not connected. In this case, the first box body can be attached to and detached from the second box body, the first box body is inserted and stored in the second box body, and the optical connector plug and the optical connector receptacle are connected. 2. A case for an optical communication device, wherein the optical connector plug comes into contact with an edge of the through hole so that the first box cannot be pulled out from the second box.