JP2755105B2 - Optical cable housing structure and mounting frame structure of optical communication device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical communication device, and more particularly to an optical cable housing structure and a mounting frame structure of an optical communication device in which an optoelectronic circuit unit is mounted and a heat radiating mechanism is provided.

[0002]

2. Description of the Related Art In an optical communication apparatus in which a plurality of circuit units are mounted on a single frame, and an optical cable is connected to the circuit units, an extra work such as winding an optical cable and a heat radiation effect of the circuit unit are taken into consideration. Various proposals have been made for a housing structure for an optical cable.

FIGS. 7 and 8 show an example of a conventional optical cable housing structure (Japanese Patent Laid-Open No. 3-148605).

[0004] In FIG. 7 and FIG.
An opto-electronic circuit unit 103 is mounted on the frame 102, and an optical cable 106 is connected to the unit 103 by an adapter 104 and an optical connector 105. The optical cable 106 is extra-length processed on the extra length processing shelf 107,
The extra length processing shelf 107 is slackened in the heat radiation duct 108 so that it can be pulled out.

The guide hole 1 is provided in the side plate 109 of the mounting frame 102.
10 are provided, and the guide hole 110 is a hole 1 in a vertically upward direction.
10a and a horizontal hole 110b.

Further, a hole 110c extending vertically downward is provided in the middle of the hole 110b in the horizontal direction.

[0007] Protrusions 107a and 107b are provided on the front and rear sides of both sides of the extra length processing shelf 107, and are inserted into guide holes 110 of the side plate 109, respectively.
7 is supported.

When the extra length processing shelf 107 is stored, as shown in FIG. 7, the rear projection 107b is located at the upper end of the vertically upward guide hole 110a, and the front projection 107a is fitted into the vertically downward hole 110c. Then, the extra-length processing shelf 107 is fixed in an inclined state in which the heat radiation duct 108 side is raised.

At the time of extra length work, as shown in FIG. 8, the connector 105 is detached from the adapter 104, and the protrusions 107a and 107b of the extra length processing shelf 107 are moved to the horizontal hole 110b of the guide hole 110, so that extra length processing is performed. The shelf 107 is pulled out forward.

[0010]

However, in the above-mentioned conventional optical cable accommodating structure, a space for the extra length processing work is provided in the mounting frame in order to pull out the extra length processing shelf and perform the extra length work. It has a structure that cannot be done.
For this reason, as a practical matter, it is necessary to secure an extra mounting space, and the space is not saved.

In addition, since no consideration is given to the electric signal cable, it is difficult to connect and house the electric cable at the front of the mounting frame.

Further, since the optical cable is processed on the extra length processing shelf, it is disadvantageous from the viewpoint of protection of the optical cable.

Further, when pulling out the extra-length processing shelf during the extra-length processing operation, it is necessary to remove the optical connector and the adapter in advance, which complicates the operation.

[0014]

In order to solve the above-mentioned problems, an optical cable accommodating structure according to the present invention comprises a mounting frame for an optical communication device in which at least an optoelectronic circuit unit is mounted and a heat radiation mechanism for the optoelectronic circuit unit is provided. In the optical cable accommodating structure of the above, an extra length processing plate provided with a wire saddle for detachably holding the optical cable on one surface, and the extra length processing plate detachably and rotatably with respect to the mounting rack. An attachment member to be attached, and a locking member that inclines and fixes the extra-length processing plate to the inside with the optical cable held by the extra-length processing plate facing the inside. .

Further, according to the mounting structure of the optical communication device according to the present invention, the mounting structure of the optical communication device in which a plurality of opto-electronic circuit units are mounted in a vertical direction and a radiation mechanism for the opto-electronic circuit units is provided. An optical cable surplus processing unit and an electrical connector unit are provided between the optoelectronic circuit units mounted in the vertical direction, and the optical cable surplus processing unit has a wire saddle for detachably holding the optical cable on one surface. An extra-length processing plate, an attaching member for detachably and rotatably attaching the extra-length processing plate to the mounting rack, and an optical cable held by the extra-length processing plate facing inward. A locking member that inclines and fixes the extra-length processing plate to the inner side in a state in which the extra-length processing plate is provided, wherein the electrical connector portion is provided on the mounting rack and held by the extra-length processing plate. Is arranged at a position facing the cable, characterized in that.

[0016]

In the optical cable accommodating structure according to the present invention, the optical cable is wound around the wire saddle of the extra length processing plate and held, and the extra length processing plate is attached to the mounting rack with the optical cable side inside and the extra length attached The processing plate is rotated inside the mounting rack and fixed in an inclined state. Therefore, the extra-length processed optical cable is accommodated inside the extra-length processing plate.

In the mounting frame structure according to the present invention, the excess length processing plate is accommodated in a state facing the electrical connector portion. Therefore, not only the optical cable but also the electric cable can be stored and protected, and when the extra length processing plate is opened or removed, an electric connector portion appears on the front surface.

[0018]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a schematic side view showing an embodiment of a mounting frame of an optical communication device according to the present invention.

In FIG. 1, an optoelectronic circuit unit 3 is mounted in a mounting frame 2 of the optical communication device 1, and the optoelectronic circuit unit 3 is connected to an optical cable 5 by an optical connector 4.

The optical cable 5 is extra-length processed and held by an extra-length processing plate 6 provided above the optoelectronic circuit unit 3. The extra length processing plate 6 is fixed in a state where the surface holding the optical cable 5 is inclined toward the inside (the right side in the drawing).

Further, above the optoelectronic circuit unit 3,
An electric connector 7 is provided at a position facing the optical cable holding surface of the extra length processing plate 6, and an electric cable 8 is connected to the electric connector 7.

The side plate 9 of the mounting frame 2 is provided with a through hole 10 on the upper front side of the optoelectronic circuit unit 3 so as to be engaged with the ball of the ball housing of the extra length processing plate 6 as described later. The center of rotation of the processing plate 6. The extra length processing plate 6 is rotatable in the arrow C direction.

An L-shaped stopper 11 is fixed to the inside of the side plate 9 above the through hole 10, and the extra length processing plate 6 stops rotating at a position inclined by a predetermined angle by engaging with the stopper 11. I do. Further, the extra length processing plate 6 is
Is pressed by the gasket 13 provided on the inner surface of the upper part of the base, and is fixed by being sandwiched between the gasket 13 and the stopper 11.

An inwardly projecting emboss 14 is provided above the through hole 10 in the side plate 9 to prevent the extra length processing plate 6 from coming off in the upward direction.

The details of the extra length processing plate, its mounting member and fixing member will be described with reference to FIGS.

In a state where the extra length processing plate 6 is fixed by being sandwiched between the stopper 11 and the gasket 13, the optical cable 5
And the electric cable 8 is made up of the extra length processing plate 6 and the electric connector 7
It is housed in the space between it and it is excellent in protecting cables because it is not exposed on the front.

Further, when the extra length processing plate 6 is fixed by being sandwiched between the stopper 11 and the gasket 13, a heat radiation space is provided together with a separation plate 16 for separating an air flow between the upper device 15 and the upper device 15. (Provided behind the electrical connector 7). As a result, heat from the optoelectronic circuit unit 3 is radiated as indicated by arrow A.

Outside air flows into the circuit unit in the upper device 15 along the outer surface of the extra-length processing plate 6 as shown by the arrow B, thereby contributing to cooling. Of course, the optoelectronic circuit unit 3
If there is a lower device below, the outside air similarly flows into the optoelectronic circuit unit 3 along the outer surface of the extra length processing plate of the lower device, and the heat is released to the heat radiation space along the arrow A.

FIG. 2 is a schematic side view of a mounting rack for illustrating the operation of the extra-length processing plate in this embodiment, and FIG. 3 is a schematic perspective view of the mounting rack in this embodiment.

As shown in FIG. 2 and FIG.
For example, when the excess length processing is performed or when an electric cable is connected to the electrical connector portion 7, the front plate 12 is opened in the direction of arrow D to remove the gasket 13, and the excess length processing plate 6 is removed.
In the direction of arrow E. Thus, the optical cable 5 held by the wire saddle 61 of the extra-length processing plate 6 appears on the front surface. Further, at this time, since the excess length processing plate 6 only rotates about the through hole 10, it is not necessary to separate the optical connector 4 from the optoelectronic circuit unit 3, and the work becomes easy.

Further, when the extra length processing plate 6 is opened or removed, the electric connector portion 7 appears on the front surface, so that the work of connecting the electric cable becomes easy.

FIG. 4 is a schematic plan view of the mounting rack in the state shown in FIG. 2 as viewed from above, FIG. 5 is a side view of the extra-length processing plate, and FIG. 6 is an enlarged view of a mounting portion of the extra-length processing plate. is there.

As shown in the wire saddle 4 and 5, the extra length on one surface of the treated sheet 6 is provided wire saddle 61 for holding the optical cable 5, they each circular as four pair Are located.

The wire saddle 61 is, as shown in FIG.
It is M-shaped with a tongue at the tip and is formed of an elastic material. The optical cable 5 is held by the saddle 61 by being pushed in from the concave portion at the distal end. In this embodiment, the optical cable 5 is held in a circular shape by each set of wire saddles 61.

As shown in the attachment member 4 and 5, the ball housing 62 at both ends of one side of the extra length handling plate 6 is provided, and is fixed with screws 63. At the tip of the ball housing 62,
The ball 64 is provided in a state of being urged outward. Therefore, the ball 64 can be pushed into the ball housing 62 by an external force.

As shown in FIG. 4, the extra length processing plate 6 is rotatably mounted by fitting a ball 64 into a through hole 10 provided in the side plate 9 of the mounting frame 2. It is also easy to remove.

As shown in FIGS. 4 and 6, the rotation of the extra-length processing plate 6 rotatably attached to the locking member is locked by an L-shaped stopper 11 provided on the side plate 9. In addition, as shown in FIG. 6, the upward movement is locked by an emboss 14 protruding inside the side plate 9.

As shown in FIG. 1, the excess length processing plate 6 locked by the stopper 11 is fixed at a predetermined angle by the pressing force of the gasket 13 on the front plate 12.

[0040]

As described in detail above, the optical cable accommodating structure and the mounting frame structure according to the present invention allow the extra-length processing plate of the optical cable accommodating portion to be attached to and detached from the mounting frame of the optical communication device, for example, by a ball catch type. For this reason, the work of connecting the optical cable and the electric cable to the front-access type optical communication device becomes easy.

Since the extra length processing plate is detachable and rotates inward to accommodate the optical cable, the space in front of the apparatus can be effectively utilized, and this is advantageous in terms of cable protection.

Since the extra length processing plate is rotated to take out the optical cable, the extra length processing work can be performed without disconnecting the connector of the optical cable from the optoelectronic circuit unit.

Further, since the extra length processing plate can be removed, the packaging design and packaging of the optical communication device are facilitated.

[Brief description of the drawings]

FIG. 1 is a schematic side view showing one embodiment of a mounting frame of an optical communication device according to the present invention.

FIG. 2 is a schematic side view of a mounting rack for illustrating an operation of a surplus processing plate of the present embodiment.

FIG. 3 is a schematic perspective view of a mounting rack of the embodiment.

4 is a schematic plan view of the mounting rack in the state shown in FIG. 2 as viewed from above the drawing.

FIG. 5 is a side view of the extra-length processing plate.

FIG. 6 is an enlarged view of a mounting portion of the extra length processing plate.

FIG. 7 is a perspective view showing an example of a conventional optical cable housing structure.

FIG. 8 is a perspective view for explaining the operation of the conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Optical communication apparatus 2 Mounting frame 3 Optoelectronic circuit unit 4 Optical connector 5 Optical cable 6 Extra length processing board 7 Electric connector part 8 Electric cable 9 Side plate 10 Through hole 11 Stopper 12 Front plate 13 Gasket 14 Emboss 15 Upper device 16 Separation plate 61 Wire Saddle 62 Ball housing 63 Screw 64 Ball

Claims (6)

(57) [Claims] An optical cable accommodating structure in an optical communication device mounting rack on which at least an optoelectronic circuit unit is mounted, wherein a surplus processing plate provided on one surface with a wire saddle for detachably winding and holding the optical cable. Above the optoelectronic circuit unit mounted on the mounting rack
A mounting member that detachably and rotatably attaches the extra length processing plate to the mounting rack from a front surface of the mounting rack around one side of the extra length processing plate as an axis; A locking member that inclines and fixes the extra length processing plate toward the inside with the held optical cable facing the inside of the mounting rack. . 2. The mounting member is provided on both ends of the one side of the extra-length processing plate, and is provided on the mounting rack, and a pair of protrusions urged outwardly of the side. The optical cable accommodating structure according to claim 1, comprising: a concave portion that is fitted to the protruding portion. 3. The extra length processing plate is provided on the mounting rack, and holds the extra length processing plate so as to incline and fix the extra length processing plate to the inner side. 2. The optical cable accommodation structure according to 1. 4. A mounting frame structure of an optical communication device on which at least an optoelectronic circuit unit is mounted, the optical communication device having an optical cable extra length processing section and an electrical connector section above the optoelectronic circuit unit mounted on the mounting frame. An optical cable extra length processing unit, comprising: an extra length processing plate provided on one surface with a wire saddle for detachably winding and holding the optical cable; and the extra length processing plate.
The extra length processing plate is positioned on the front side of the mounting
A mounting member that is detachably and rotatably attached to the mounting rack, and the extra length processing plate is attached to the inside with the optical cable held by the extra length processing plate facing the inside of the mounting rack. A locking member that is inclined and fixed to the side, and wherein the electrical connector portion faces forward of the mounting rack.
And the extra length processing plate is on the inner side of the mounting rack.
A mounting frame structure of the optical communication device, wherein the optical communication device is disposed at a position facing the optical cable held by the extra-length processing plate in a state where the optical communication device is fixed in an inclined state . 5. A plurality of optical electronic circuit unit is mounted vertically, in the mounting rack structure of the optical communication device radiation mechanism of the optoelectronic circuit unit is provided, above each optical electronic circuit unit mounted in the vertical direction An optical cable extra length processing unit and an electrical connector unit, wherein the optical cable extra length processing unit is provided with a wire saddle for detachably winding and holding the optical cable on one surface. Long processing plate and extra length processing plate
The extra length processing plate is positioned on the front side of the mounting
A mounting member that is detachably and rotatably attached to the mounting rack, and the extra length processing plate is attached to the inside with the optical cable held by the extra length processing plate facing the inside of the mounting rack. A locking member that inclines and fixes to the side, the electrical connector portion is provided on the mounting rack in a state facing forward , and the extra length processing plate is provided inside the mounting rack.
A mounting frame structure for an optical communication device, wherein the mounting frame structure is arranged at a position facing the optical cable held by the extra-length processing plate while being fixed to be inclined to the side . 6. A space formed by the electrical connector portion and the extra length processing plate communicates with the heat radiating mechanism to radiate heat of the optoelectronic circuit unit located immediately below and to the outside of the extra length processing plate. The mounting frame structure of the optical communication device according to claim 5, wherein outside air is supplied to the optoelectronic circuit unit immediately above along the facing surface.