JP4882118B2 - Splitter module - Google Patents

Description

  The present invention relates to a splitter module having an optical splitter for branching an optical signal.

The splitter module is housed in, for example, a wiring board installed in an apartment house, and branches an optical signal sent by an optical cable pulled down from an aerial and transmits it to each home. As such a splitter module, for example, as described in Patent Document 1, a core receiving unit that receives an optical cable by branching and a plurality of optical fiber cores branched by the core receiving unit are provided for each optical fiber. A box-shaped splitter module having a connector housing portion connected to a socket is known.
JP 2007-121398 A

  The splitter module as in the prior art is often installed in a cabinet for a wiring board (hereinafter simply referred to as a cabinet) in an existing building. In this case, since other devices, cables, and the like are already accommodated in the cabinet, it is difficult to secure an accommodation space for the splitter module.

  The objective of this invention is providing the splitter module excellent in the accommodating property in a cabinet.

The present invention relates to a splitter module having an optical splitter housed in a cabinet and having an optical splitter that branches an optical signal incident from an input optical fiber core and emits it to a plurality of output optical fiber cores. A housing, a fixing means for removably fixing the module housing to the back surface of the frame body portion provided in the cabinet , and a plurality of outputs attached to the module housing and connected to a plurality of output side optical fiber cores Side optical socket and an input side optical socket attached to the module casing and connected to the input side optical fiber core wire, and the module casing has a front end portion of the frame portion provided in the cabinet on the back side bent portions formed by bending so as to protrude to the side is inserted, protruding length depth than of the bent portion is deep recess provided, a plurality of output-side optical The socket and the input side optical socket are provided side by side on one side of the module housing, and the recess is provided so as to extend along the direction in which the plurality of output side optical sockets and the input side optical socket are arranged side by side. It is characterized by that.

  In the cabinet in which the splitter module is accommodated, for example, a frame body portion having a bent portion whose tip end portion is bent inward is formed. Such a back surface side portion of the frame body portion is a dead space for accommodating devices and cables. Therefore, in the splitter module of the present invention, the splitter module can be fixed to the frame body portion by providing the module housing with a recess into which the frame body portion of the cabinet is inserted. Thereby, the back side part etc. of the frame part used as the dead space in a cabinet can be utilized effectively. Therefore, it is possible to improve the capacity of the splitter module in the cabinet.

  Moreover, it is preferable that a fixing means is a magnet which can be attached or detached with respect to a frame part. Thus, by using the magnet as the fixing means, the splitter module can be easily and firmly fixed to the cabinet, and the splitter module can be easily attached and detached.

  A plurality of output side optical sockets attached to the module housing and connected to the plurality of output side optical fiber cores; an input side optical socket attached to the module housing and connected to the input side optical fiber core wires; The plurality of output side optical sockets and input side optical sockets are provided side by side on one side of the module housing, and the groove portion is provided in the direction in which the plurality of output side optical sockets and input side optical sockets are arranged side by side. It is preferable that it is provided so that it may extend along. In this case, for example, when the splitter module is fixed to the upper frame portion of the cabinet, the splitter module can be attached such that each socket faces downward. Thereby, the optical connector plug attached to the optical cord can be easily inserted into and removed from the output side optical socket and the input side optical socket.

  ADVANTAGE OF THE INVENTION According to this invention, the accommodating property of the splitter module in a cabinet can be made excellent. As a result, unreasonable handling and bending of the optical cord can be avoided, and a decrease in the reliability of the optical cord can be avoided.

  Hereinafter, a preferred embodiment of a splitter module according to the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a perspective view showing an appearance of an embodiment of a splitter module according to the present invention. In FIG. 1, the splitter module 1 of the present embodiment includes a module housing 2, an input-side adapter socket 3 and a plurality of output-side adapter sockets 4 attached to the module housing 2. As shown in FIGS. 2A and 2B, the splitter module 1 is accommodated in the cabinet 5 by being fixed to a frame body portion 10 provided in the cabinet 5 for a wiring board. .

  The module housing 2 has a substantially rectangular parallelepiped shape, and has a cover portion 8 in which an upper surface portion 6 and a side wall portion 7 are integrally formed. The cover portion 8 is provided with a groove portion (concave portion) 9 that opens to the upper surface portion 6. The groove portion 9 is a portion into which the bent portion 11 of the frame body portion 10 shown in FIG. 2 is inserted, and is formed so as to extend along the longitudinal direction (width direction) on one end side (rear end side) of the cover portion 8. ing. The width dimension of the groove 9 is substantially the same as the plate thickness of the bent portion 11 to be inserted, and the depth of the groove 9 is deeper than the protruding length of the bent portion 11 (see FIG. 4). As shown in FIG. 2, the bent portion 11 is a portion that bends (protrudes) to the inside of the cabinet 5 at the distal end portion of the frame body portion 10 provided in the cabinet 5.

  A plurality (two in this case) of magnets 12 a and 12 b are attached to the cover portion 8 of the module housing 2 to removably fix the module housing 2 to the frame body portion 10 (cabinet 5). The magnets 12 a and 12 b are disposed in two concave portions 13 a and 13 b formed at one end of the cover portion 8 on the groove portion 9 side, and are attached so as to be flush with the surface of the cover portion 8. The magnets 12a and 12b allow the splitter module 1 to be easily and firmly fixed to the cabinet 5, and the splitter module 1 can be easily attached and detached.

  Inside the module housing 2 is accommodated an optical splitter 14 (hereinafter, see FIG. 4) that branches an optical signal into a plurality (eight in this case). An input-side optical fiber core wire 15 is connected to one end of the optical splitter 14, and a plurality (eight in this case) of output-side optical fiber core wires 16 are connected to the other end of the optical splitter 14. Thereby, the optical signal input from the input side optical fiber core 15 is branched by the optical splitter 14 and emitted to each output side optical fiber core 16.

  An output-side connector plug 17 is attached to the distal end portion of each output-side optical fiber core wire 16, and these output-side connector plugs 17 are connected to the output-side adapter socket 4, respectively. Similarly, an input side connector plug (not shown) is attached to the distal end portion of the input side optical fiber core wire 15, and this input side connector plug is connected to the input side adapter socket 3.

  Returning to FIG. 1, the input-side adapter socket 3 is attached to one side (the front end side in the figure) of the module housing 2. The input-side adapter socket 3 has an input-side socket portion 3a that fits with an input-side optical connector plug (not shown) attached to the end portion of the optical fiber core wire, and is a connector component that connects the optical fiber core wires to each other. It is. As the input side adapter socket 3, for example, an SC type adapter socket is used.

  The output side adapter socket 4 is attached to the same one side (front end side in the figure) as the input side adapter socket 3. The output-side adapter socket 4 has eight output-side socket portions 4a that engage with output-side optical connector plugs (not shown) attached to the end portions of the optical fiber core wires. The output-side adapter socket 4 is attached so that the output-side socket portion 4a is eight in the horizontal direction. As the output side adapter socket 4, for example, an SC type adapter socket is used similarly to the input side adapter socket 3.

  By attaching the input side adapter socket 3 and the output side adapter socket 4 to the module housing 2 as described above, the input side socket portion 3a and the output side socket portion 4a are juxtaposed in a row in one side portion of the module housing 2. Will be provided. Thereby, the thickness (height) of the module housing 2 is substantially equal to the height of the input side adapter socket 3 and the output side adapter socket 4.

  Moreover, the groove part 9 is provided so that it may extend in the cover part 8 along the parallel arrangement direction of the input side adapter socket 3 and the output side adapter socket 4 by the above structures.

  Next, attachment of the splitter module 1 to the cabinet 5 will be described with reference to FIGS. 2 (a) and 2 (b). FIGS. 2A and 2B are perspective views showing an example in which the splitter module 1 is attached to the cabinet 5. The cabinet 5 shown in the figure has a space for housing equipment, cables, and the like, and the body (including the frame body portion 10 and the like) and the door are formed of a magnetic metal plate. It is.

  As shown in FIG. 2 (a), the cabinet 5 is arranged such that the magnets 12 a and 12 b of the splitter module 1 are positioned on the back surface portion of the frame body portion 10 and the bent portion 11 of the frame body portion 10 is inserted into the groove portion 9. The splitter module 1 is attached from the inside. At this time, the input side adapter socket 3 and the output side adapter socket 4 are set so that the insertion port of the optical connector plug faces the side opposite to the frame body part 10. 2B, the splitter module 1 is attached to the frame body portion 10 of the cabinet 5 by the magnets 12a and 12b in a state where the bent portion 11 of the frame body portion 10 is inserted into the groove portion 9 of the splitter module 1. Is attracted and fixed.

  3 and 4 are cross-sectional views showing a state in which the splitter module 1 is attached to the cabinet 5. As shown in each figure, the splitter module 1 is fixed to the cabinet 5 by inserting the bent portion 11 into the groove portion 9 and attaching the magnets 12 a and 12 b to the back surface 18 of the frame body portion 10. Here, as described above, the width dimension of the groove portion 9 is substantially equal to the plate thickness of the bent portion 11, and the depth of the groove portion 9 is deeper than the protruding length of the bent portion 11. As a result, it is possible to prevent the bent portion 11 from rattling in the groove 9, and the magnets 12 a and 12 b can be brought into contact with the back surface 18, so that the splitter module 1 can be firmly fixed without being displaced with respect to the cabinet 5. .

  The splitter module 1 configured as described above is installed in a cabinet 5 installed on a wall in a building such as an apartment house. Specifically, for example, the splitter module 1 is installed in a predetermined space of the cabinet 5, the input side optical cord is connected to the input side socket portion 3a of the input side adapter socket 3, and a plurality of output side optical cords are connected to the output side. A connector is connected to each output side socket portion 4a of the adapter socket 4.

  At this time, when many other devices, cables, and the like are accommodated in the cabinet 5, it is difficult to secure an accommodation space for attaching the splitter module 1, and accordingly, handling of the splitter module 1 and optical cords are difficult. Routing (wiring) may be difficult.

  However, in the splitter module 1 of the present embodiment, the module housing 2 is provided with the groove portion 9 into which the bent portion 11 of the frame body portion 10 of the cabinet 5 is inserted. By setting it as such a structure, the splitter module 1 can be fixed to the back surface side part of the frame part 10 used as the dead space in accommodation of an apparatus, a cable, etc. in the cabinet 5. FIG. Thereby, the back side part of the frame part 10 which becomes a dead space in the cabinet 5 can be effectively used as a fixing position of the splitter module 1. Therefore, the capacity of the splitter module 1 in the cabinet 5 can be improved.

  Further, since the groove portion 9 is provided in the cover portion 8 so as to extend along the parallel arrangement direction of the input side adapter socket 3 and the output side adapter socket 4, for example, the splitter module 1 is attached to the upper frame of the cabinet 5. When fixed to the section 10, the splitter module 1 can be attached to the cabinet 5 so that the sockets 3 and 4 into which the optical connector plugs attached to the optical cord are inserted face downward. Thereby, the optical connector plug can be easily inserted into and removed from the input side adapter socket 3 and the output side adapter socket 4.

  Moreover, the thickness of the splitter module 1 can be reduced by arranging the input side adapter socket 3 and the output side adapter socket 4 side by side and attaching them to one side portion of the module housing 2. Thereby, even when the splitter module 1 is fixed to the frame body portion 10 of the cabinet 5, it is possible to avoid the splitter module 1 from projecting to the door side and interfering with the door.

  The present invention is not limited to the above embodiment. For example, in the above-described embodiment, one groove portion 9 of the module housing 2 is provided so as to extend along the direction in which the input side adapter socket 3 and the output side adapter socket 4 are arranged side by side. It is not limited. For example, the groove portion 9 may be further provided along the front-rear direction of the module housing 2 (the direction orthogonal to the direction in which the socket portions 3a and 4a are juxtaposed). In this case, the splitter module 1 can be attached to the corner of the cabinet 5.

  Moreover, in the said embodiment, although the width | variety of the groove part 9 is made substantially equal to the plate | board thickness of the bending part 11 of the frame body part 10, the width | variety of the groove part 9 may be changed suitably according to the shape of the bending part 11. FIG. Specifically, this will be described with reference to FIG. In the drawing, members that are the same as or equivalent to those in the above embodiment are given the same reference numerals. For example, when the bent portion 11 is bent into an acute angle as shown in FIG. 5A, the width of the groove 9 may be increased. For example, when the shape of the bent portion 11 is L-shaped or substantially U-shaped as shown in FIGS. 5B and 5C, the width of the groove portion 9 is increased and the side wall of the groove portion 9 is formed. A magnet 12c may be further attached. Thereby, the splitter module 1 can be fixed to the cabinet 5 more firmly, and the shift | offset | difference of the splitter module 1 can be prevented.

  In the above embodiment, the magnets 12a and 12b are employed as fixing means for detachably fixing the module housing 2 to the cabinet 5, but the fixing means is, for example, a hook-and-loop fastener (magic tape: registered trademark) or double-sided tape. Etc.

[Modification]
Then, the splitter module which concerns on the modification of this invention is demonstrated. 6 to 8 are perspective views showing an appearance of a splitter module according to a modification. In each figure, the splitter module 1 </ b> A includes a lower housing 20 and an upper housing 21 disposed on the lower housing 20. Note that FIG. 8 is shown upside down for convenience of explanation. In the drawing, the same reference numerals are given to the same or equivalent members as in the above embodiment.

  The lower casing 20 has a substantially rectangular parallelepiped shape, and four output-side adapter sockets 22 and input-side adapter sockets 23 are attached to the front end side portion. The lower housing 20 has a base portion 26 in which a side wall portion 24 and a lower surface portion 25 are integrally formed, and an upper surface portion 27. As shown in FIG. 8, the base portion 26 is open on one end side (hereinafter, rear end side). Slit portions (concave portions) 28 are provided on the left and right sides of the opened portion of the side wall portion 24. The slit part 28 is a part into which the bent part 11 of the frame body part 10 shown in FIG. 2 is inserted, as in the above embodiment. The side wall portion 24 is provided with a plurality of (here, two) through holes 29 along the front-rear direction on the rear end side of the slit portion 28.

  Further, the lower housing 20 is provided with a magnet holding portion 30 for fixing and holding the magnets 12a and 12b. The magnet holding portion 30 is attached to the base portion 26 so as to be rotatable in the vertical direction. Specifically, two protrusions 32 are provided on both the left and right sides of the side wall 31 of the magnet holding unit 30. Then, when one (rear end side) protrusion 32 is fitted into the through hole 29 of the base portion 26, the magnet holding portion 30 can be rotated in the vertical direction with respect to the base portion 26 around the protrusion 32. It becomes. In addition, the magnet holding part 30 is fixed to the base part 26 so that the magnets 12 a and 12 b are flush with the surface of the lower surface part 25 by fitting both the protrusions 32 into the through holes 29 of the base part 26. Is done.

  Here, the magnet holding part 30 has a structure through which the arrangement parts 33a and 33b for arranging the magnets 12a and 12b penetrate. And magnet 12a, 12b has a structure where a central part penetrates. With such a configuration, for example, even when the frame body portion 10 of the cabinet 5 is a wooden frame or the like and does not have the bent portion 11, the splitter module 1A is attached to the cabinet 5 via the magnets 12a and 12b. And can be screwed.

  Protruding walls 34 for connecting the upper housing 21 to the lower housing 20 so as to be rotatable in the vertical direction are provided on both sides of the rear end portion of the upper surface portion 27. A through hole 35 is formed in the protruding wall 34.

  The upper casing 21 has a substantially rectangular parallelepiped shape, and four output side adapter sockets 36 are attached to the front end side portion. The upper housing 21 is attached to the lower housing 20 so as to be rotatable in the vertical direction. Specifically, the protrusion 38 provided on the rear end side portion of the side wall 37 of the upper casing 21 is fitted into the through hole 35 of the protruding wall 34 of the lower casing 20, so that the upper casing 21 is protruded 38. It becomes possible to rotate in the vertical direction with respect to the lower housing 20 around the center.

  As a result, as shown in FIG. 7, the plug receptacles of the socket portions 36 a of the output side adapter socket 36 attached to the upper housing 21 can be directed upward in the figure with respect to the lower housing 20.

  As described above, in the modified splitter module 1 </ b> A, the lower housing 20 is provided with the slit portion 28 into which the bent portion 11 of the frame body portion 10 of the cabinet 5 is inserted. By setting it as such a structure, the splitter module 1A can be fixed to the back surface side part of the frame part 10 used as the dead space in accommodation of an apparatus, a cable, etc. in the cabinet 5. FIG. Thereby, the back side part of the frame part 10 used as the dead space in the cabinet 5 can be effectively utilized as a fixing position of the splitter module 1A. Therefore, it is possible to make the capacity of the splitter module 1A in the cabinet 5 excellent.

  Further, by passing through the central portions of the magnets 12a and 12b, the splitter module 1A can be fixed to the cabinet 5 by screwing, for example, when the frame body portion 10 is a wooden frame. At this time, the magnet holding portion 30 to which the magnets 12 a and 12 b are fixedly held is configured to be rotatable in the vertical direction with respect to the base portion 26. Thereby, the screwing operation can be improved by rotating the magnet holding portion 30 when screwing.

  Further, by allowing the upper casing 21 to be pivoted in the vertical direction with respect to the lower casing 20, the optical connector plug attached to the tip end portion of the optical cord can be connected to the input side adapter socket 23 and the output side adapter sockets 22, 36. On the other hand, it becomes easy to insert and remove.

  In addition, the structure which the magnet holding | maintenance part 30 which fixes and holds the magnets 12a and 12b can rotate with respect to the lower housing | casing 20 can be applied to the splitter module 1 of the said embodiment of course.

It is a perspective view which shows the external appearance of one Embodiment of the splitter module which concerns on this invention. It is a perspective view which shows an example in which the splitter module shown in FIG. 1 is attached to a cabinet. FIG. 3 is a cross-sectional perspective view taken along line III-III in FIG. It is the IV-IV sectional view taken on the line in FIG. It is a principal part enlarged view of the modification of the splitter module shown in FIG. It is a perspective view which shows the external appearance of the splitter module which concerns on a modification. FIG. 7 is a perspective view illustrating a state in which an upper housing of the splitter module illustrated in FIG. 6 rotates. FIG. 7 is a perspective view illustrating a state in which a magnet holding portion of the splitter module illustrated in FIG. 6 rotates.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Splitter module, 2 ... Module housing, 3, 23 ... Input side adapter socket (input side optical socket), 4, 22, 36 ... Output side adapter socket (output side optical socket), 5 ... Cabinet, 9 ... Groove ( (Recessed portion), 10 ... frame portion, 12a, 12b ... magnet (fixing means), 14 ... optical splitter, 15 ... input side optical fiber core wire, 16 ... output side optical fiber core wire, 20 ... lower housing (module housing) ), 21... Upper housing (module housing), 28... Slit (recess).

Claims (2)

In a splitter module having an optical splitter housed in a cabinet and branching an optical signal incident from an input-side optical fiber core and emitting it to a plurality of output-side optical fiber cores,
A module housing that houses the optical splitter;
Fixing means for detachably fixing the module housing to the back surface of a frame body portion provided in the cabinet;
A plurality of output side optical sockets attached to the module housing and connected to the plurality of output side optical fiber cores;
An input side optical socket attached to the module housing and connected to the input side optical fiber core ; and
The module housing is inserted with a bent portion that is bent so that the front end portion of the frame portion provided in the cabinet protrudes toward the back side, and is a recess having a depth deeper than the protruding length of the bent portion. Is provided ,
The plurality of output side optical sockets and the input side optical socket are provided side by side on one side of the module housing,
The splitter module , wherein the recess is provided so as to extend along a direction in which the plurality of output-side optical sockets and the input-side optical sockets are arranged in parallel . The splitter module according to claim 1, wherein the fixing means is a magnet that can be attached to and detached from the frame body portion.

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