KR101627433B1 - Subrack for electronic circuit - Google Patents

Abstract

The present invention relates to a sub-rack for fixating a module type optical splitter. The objective of the present invention is to improve user convenience by configuring a door for preventing foreign substances from coming inside the front part or the rear part of the sub-rack, and a transparent window to see the inside of the door, thereby checking the state of communication and maintenance through the door without opening the same. To achieve the purpose, the present invention comprises: a case (20) for supporting the optical splitter (10) to be attached to or detached from the inside; and doors (30) provided on front and back surfaces of the case (20), respectively. The optical splitter (10) includes an input side terminal (12) and an output side terminal (14) provided on front and back surfaces of the optical splitter (10) respectively, for easily checking the state of connection or for easy connection of optical fibers. The case (20) includes a first frame (210), a second frame (220), and a splitter guide (230) which are sequentially provided from the outside to the inside, and has a lateral frame (240) fixated to each of both side ends, and a lower frame (260) to finish a lower end. On the lateral frame (240), provided is a fixating bracket (250) fixated to the rack (110) by changing the size of a sub-rack (1) depending on the size of the rack (110), for a multi-purpose use.

Description

[0001] Subrack for electronic circuit [

The present invention relates to a sub rack for fixing an optical splitter in the form of a module, and more particularly, to a sub rack for fixing an optical splitter in a modular form, comprising a door for preventing foreign matter from penetrating into a front surface or a rear surface of the sub rack, A sub rack for fixing the optical splitter in the form of a module which improves the convenience of use because the communication state and the state of expansion or maintenance can be confirmed through the viewing window of the door without opening the door will be.

Generally, a large-capacity line is required as the demand for optical communication increases sharply. Accordingly, ribbon-type multi-core optical fibers in which a plurality of single-core optical fibers are arranged in a strip shape are widely used. In order to connect a ribbon-type multi-core optical fiber connected to the optical fiber introduced into the interior of the room to a system or a facility, It should be stripped and branched into multiple single fiber. Therefore, an optical splitter is used for branching in the connection housing and sending to the optical subscriber side.

On the other hand, the cradle for an electronic communication device includes a sub rack having a plurality of sub-racks for mounting a plurality of optical splitters, each of which functions as an exchange server or an internet server of a telephone office, into a plurality of divided shelves, So that it can be operated as a single system.

As shown in FIG. 1, the conventional stand 100 for a telecommunication equipment includes a rack 110 having a top plate and a bottom plate, and a plurality of support frames supported at both ends of the top plate and the bottom plate, A plurality of sub racks 120 mounted in the accommodating space of the rack 110 and coupling means 120 for slidingly coupling the sub rack 120 into the accommodating space of the rack 110, .

The coupling means is fixed to the front and rear support frames on both sides of the support frame by a screw fastening member and is guided by the guide rails to guide the entry and exit of the sub rack 120, And a slider fixed to the sub rack 120 in the longitudinal direction of both sides of the sub rack 120 by a screw fastening member.

The coupling structure of the sub rack 120 is formed at the front end of the guide rail fixed to the front support frame and the rear support frame of the rack 110 by screw fastening members respectively, And the sub rack 120 is pushed so that the slider slides along the guide rails to move the sub rack 120 of the rack 110 to the inside.

In addition, a plurality of optical splitters 130 are mounted on the sub rack 120 so as to form a single system and be assembled to perform the function of the electronic communication device.

On the other hand, the sub rack has a connector connecting section in which a plurality of optical connector adapters are arranged and a holding section for holding an unconnected optical fiber cord among the optical fiber cords equipped with the optical connector plug. In connection or connection switching, Branch operations are performed.

(1) Connect the optical connector plug of the fiber optic cord reserved in the holding module to the optical connector adapter at any position of the connecting panel.

(2) The optical connector plug of the optical fiber cord connected to the optical connector adapter at any position of the connection panel is taken out, and the connection is switched to another optical connector adapter.

(3) The optical connector plug of the optical fiber cord connected to the optical connector adapter at any position of the connection panel is taken out and held in the holding module.

However, there is a problem that a plurality of optical fiber cords are entangled with each other by repeating these operations.

That is, 1) the degree of entanglement between the optical fiber cords becomes complicated according to the number of repetitions of the operation, the optical fiber cord does not touch any position of the connection half, 2) a load of another optical fiber cord is applied to one optical fiber cord, And 3) the force applied to the optical fiber cord is transmitted to the connection portion of the optical connector plug at the tip of the optical fiber cord to increase the optical loss, thereby making it impossible to achieve high density of the sub rack.

In addition, the conventional optical splitter uses one of the size of the sub rack, typically 19 "(inches) or 21", and it has to be manufactured separately according to the size of the sub rack to reduce the versatility of the optical splitter .

In addition, the conventional optical splitter has a problem in that accurate line segmentation can not be performed by a plurality of optical fibers because input and output are performed only on one side.

In addition, since the conventional optical splitter does not have a separate door, there is a problem that dust is easily attracted to the optical fiber connection site, thereby causing frequent failures.

Korean Patent Publication No. 377823 (published on Mar. 26, 2003) Korea Public Utility Model Publication No. 2009-10267 (Published on October 10, 2009) Korean Patent Laid-Open Publication No. 2013-73484 (published on March 3, 2013)

SUMMARY OF THE INVENTION It is an object of the present invention to provide a door for preventing foreign matter from penetrating into a front or a rear surface of a sub rack, So that the communication state and the state of expansion or maintenance can be confirmed through the transparent window of the door without opening the door, thereby improving the ease of use of the sub rack for fixing the optical splitter .

It is another object of the present invention to provide a sub rack which can be used in a sub rack by changing the position of a fixing bracket fixed to a side frame of the sub rack and making it possible to use the sub rack in accordance with the size of a rack having a different size, A sub rack for fixing an optical splitter in a module form.

According to an aspect of the present invention, there is provided a light emitting device comprising: a case for supporting an optical splitter to be detachably mounted on an inner side; And a door configured on each of a front surface and a rear surface of the case; The optical splitter is separately formed on the front surface and the rear surface, and constitutes an input side terminal and an output side terminal so as to easily identify an easy connection and connection state of the optical fiber; The case includes a first frame and a second frame, a second frame and a splitter guide sequentially from the outside to the inside, a side frame fixed to each side of the side, and a lower frame formed to close the bottom; The side frame includes a fixed bracket fixed to the rack to convert the size of the sub rack so that the sub rack can be used as a general purpose according to the size of the rack.

In the present invention, the fixing bracket includes: a first fixing part having a first fastening hole for fixing the side frame to one side by fastening means and a second fastening hole for fixing the rack to the other side by fastening means; And a second fixing part formed vertically at the first fixing part and having a first fastening hole to be fixed to the side frame at one side by fastening means and a second fastening hole at which the second fastening hole is formed to be fixed to the rack at the other side by the fastening means ; And the first and second fixing parts are configured to selectively fix the first or second fixing part depending on the size of the rack as the length thereof is different.

In the present invention, the second frame includes: a first upper surface forming an upper portion; A second bent portion bent at the front surface of the first upper surface; A second side bend formed at both sides of the first upper surface to fix the side frame; A third bent portion bent at a rear surface of the first upper surface; And a fixed blade extending horizontally from the third bent portion to fix one end of the splitter guide; Wherein the second frame is formed as a pair of upper and lower sides facing each other on the front surface and the rear surface, respectively; The second bent part may include an extended blade that is recessed at a predetermined depth and extended to one side so that one end of the optical splitter is fixed to the front surface or the rear surface by the fastening means.

In the present invention, it is preferable that each of the opposite ends of the side frame further includes a through hole communicating with the outside so as to allow the operator to grip the optical fiber, and to allow the optical fiber to enter and exit the inside of the sub rack from the side.

In the present invention, the door is connected to one side of the lower frame by a hinge so as to be capable of opening and closing the door; Wherein the door has a viewing window for allowing the interior of the sub rack to be viewed through; And a handle for allowing a worker to grasp the workpiece on one side.

According to the present invention, each of the front and rear surfaces of the sub rack is provided with a door for preventing foreign matter from penetrating into the inside of the sub rack, and the inside of the door can be viewed through the inside of the sub rack. The communication state and the state of the expansion or maintenance can be confirmed through the sight window, thereby improving the ease of use.

Further, by changing the position of the fixing bracket fixed to the side frame of the sub rack, it is possible to use the sub rack in accordance with the size of the rack having different sizes, thereby overcoming the use limit of the sub rack .

In addition, since the optical fiber is dividedly connected to the input side and the output side respectively on the front surface or the rear surface of the optical splitter to be detachably mounted on the sub rack, it is possible to overcome the confusion of connection of the optical fibers, .

1 is a perspective view of a general sub rack;
2 is a perspective view of a sub rack according to the present invention;
3 is a perspective view of a door of a sub rack according to the present invention opened;
4 is a cross-sectional perspective view of a subrack according to the present invention.
5 is a side cross-sectional view of a sub-rack according to the present invention.
FIG. 6 is a perspective view showing a combined splitter guide and optical splitter according to the present invention. FIG.
7 is a bottom perspective view of a first frame according to the present invention.
8 is a bottom perspective view of a second frame according to the present invention.
9 is a perspective view of a splitter guide according to the present invention.
10 is a perspective view of a side frame according to the present invention;
11 is a perspective view of a fixing bracket according to the present invention.
12 is a perspective view of a clip according to the present invention.
13 is a perspective view of a sub rack in which the position of a fixing bracket according to the present invention is changed.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings (the same reference numerals are used for the same components as the conventional ones, and a detailed description thereof will be omitted).

2 to 13, the sub rack 1 according to the present invention includes a case 20 configured to be detachably mounted on an inner side of the sub rack 1, and a door 20 configured to open and close both ends of the case 20 (30).

The optical splitter (10) is configured to be attached to and detached from the sub rack (1). The input side terminal 12 and the output side terminal 14 are formed on both ends of the optical splitter 10 so that the input and output of the optical fiber are connected.

The case 20 is a means for forming a housing so that the optical splitter 10 can be attached and detached to the inside.

The case 20 includes a plurality of first frames 210 opposed to opposite ends of a top surface thereof, a plurality of second frames 220 fixed to oppose to the first frames 210, A plurality of side frames 240 configured to close the side surfaces, a fixing bracket 250 configured on one side of the side frames 240, And a lower frame 260 formed at the lower end.

The first frame 210 includes a first upper surface 212 forming an upper surface, a first bending portion 214 bent to have a predetermined length vertically at the front surface of the first upper surface 212, And a first side bending portion 216 bent to a predetermined length on both sides of the first upper surface 212.

The first upper surface 212 forms a top surface having a predetermined length to secure connection spaces of the optical fibers connected to both ends of the optical splitter 10.

The first bent portion 214 closely contacts the inner surface of the door 30 to maintain airtightness.

The first side bending portion 216 is a portion where the side frame 240 is fixed.

As shown in FIG. 4, the second frames 220 are formed so as to be opposed to the upper and lower ends of the front and rear surfaces of the sub rack 1, respectively.

The second frame 220 includes a second upper surface 222 and a second bent portion 224 extending vertically from the front surface of the second upper surface 222 to have a predetermined length, A second side bending portion 226 bent to a predetermined length at both sides of the second upper surface 222 and a third bending portion 228 bent at a predetermined length in the rear surface of the second upper surface 222, .

The second upper surface 222 forms a top surface having a predetermined length.

The second bent portion 224 is vertically formed to have a predetermined length to seal the insertion position of the optical splitter 10 to prevent external dust from penetrating into the inside.

In addition, the pair of second bent portions 224 located on the front surface or the rear surface constitute an extended blade 225 that is configured to be detached and attached as one end of the optical splitter 10 is fastened and fixed by fastening means.

The extension wing 225 is vertically extended by a predetermined length after being recessed from the second bent portion 224 by a predetermined length so that both ends of the optical splitter 10 are closely attached to the extension length, . In this case, it is preferable that the recessed length between the extended wings 225 in the second bent portion 224 is equal to or similar to the thickness of the wing of the optical splitter 10.

The second side bending portion 226 is formed at each of both ends of the second upper surface 222 to provide a fixed area for securing the side frame 240.

The third bent portion 228 is formed on a rear portion of the second upper surface 222 to provide a fixed area for fixing the splitter guide 230.

That is, the third bent portion 228 is formed by bending vertically at the rear surface of the second upper surface 222, and is horizontally bent at the end of the third bent portion 228 to form a horizontal surface of a predetermined length And one fixed blade 229.

Thus, one end of the splitter guide 230 is fastened and fixed to the horizontal fixed blade 229 by fastening means.

The splitter guide 230 is fixed between a plurality of second frames 220 which are mutually opposed to each other at both ends and upper and lower portions so that the fixed state can be maintained while guiding the insertion of the optical splitter 10. In addition, the splitter guides 230 are formed along the width direction of the second frame 220. In this case, it is preferable that the splitter guide 230 is extended to 4Core, 8Core, 12Core, 24Core, or the like.

The splitter guide 230 includes a plurality of engagement members 232 fixed at both ends of the second frame 220 to the fixed blade 229 of the second frame 220 and a plurality of engagement members 232 formed between the plurality of engagement members 232, A plurality of guide protrusions 234 formed at both sides of the side surface at a predetermined height so as to form a space for inserting one end of the splitter 10 and a light splitter 10 between the engaging member 232 and the guide protrusion 234, And an inclined surface 236 having a constant angle to induce stable insertion of the light guide plate 236.

The side frame 240 closes both side ends of the sub rack 1. [

At both ends of the side frame 240, a through hole 242 which can be gripped by an operator is formed. The through hole 242 is a space used as a means for introducing an optical fiber connected to the input or output side terminals 12 and 14 of the optical splitter 10 formed inside.

Accordingly, the connection state and the operating state of the optical fiber and the optical splitter 10 can be easily identified on the front surface or the rear surface of the sub rack 1.

The fixing bracket 250 is fixed at one of the ends of the side frame 240 to provide fixing force to be fixed to the rack 110.

The fixing bracket 250 includes a first fixing portion 252 and a second fixing portion 254 bent perpendicularly from the first fixing portion 252. In this case, the length of the second fixing part 254 is longer than that of the first fixing part 252. This is used when the rack 110 of the first fixing part 252 is 19 "and the second fixing part 254 is formed to be used when the rack 110 is 21" desirable.

Each of the first and second fixing portions 252 and 254 is provided with a first fastening hole 256 which can be fastened and fixed to the side frame 240 by fastening means. In this case, it is preferable that the positions of the first fastening holes 256 are formed at the same positions corresponding to the first and second fixing portions 252 and 254.

Each of the first and second fixing portions 252 and 254 is provided with a second fastening hole 258 which is fastened to the rack 110 by fastening means. In this case, the second fastening holes 258 are formed on the same line as the first and second fastening portions 252 and 254, and are formed at different positions so as to be fixed according to the size of the rack 110 .

For example, in the case of a 19 "rack 110, the second fixing portion 254 is fixed to the side frame 240 through the first fixing hole 256, and the remaining first fixing portion 252 is fixed to the side frame 240 240, and is fastened and fixed to the 19 "rack 110 through the second fastening hole 258 of the first fixing portion 252 through the fastening means.

The first fixing portion 252 is fixed to the side frame 240 through the first fixing hole 256 and the remaining second fixing portion 254 is fixed to the side frame 240 240 through the second fastening hole 258 of the second fixing part 254 by fastening means through the fastening means to the 21 "rack 110. [

Thereby, the sub rack 1 having the same size is universally usable in the 19 " or 21 " racks 110. [

The lower frame (260) closes the lower end of the sub rack (1).

The lower frame 260 includes a fourth bent portion 262 vertically extending inward from both ends of the outer side, a first flat portion 264 having a predetermined length in the fourth bent portion 262, A second inclined plane 266 inclined at a predetermined angle in the first planar portion 264 and a second planar portion 268 planarized in the second inclined plane 266. [

The fourth bent portion 262 is a surface which is brought into close contact with the inner surface of the door 30. At least one hinge 40 is formed on the fourth bent portion 262 so that the door 30 can be easily opened and closed.

A clip 263 for collecting optical fibers entering through the through hole 242 of the side frame 240 is formed on the first plane portion 264. [

The clip 263 is a means for stably fixing the optical fibers introduced through the through hole 242. In this case, the clip 263 is formed to be soft so as to prevent damage when fixing the optical fibers.

The second inclined plane 266 compensates for the height so that the second plane portion 268 is positioned at a certain height.

And the second frame 220 is seated and fixed to the upper end of the second flat surface portion 268.

The door 30 is formed on the outer surface of the first frame 210 formed on the front and rear surfaces of the sub rack 1 and on the front and rear surfaces of the sub rack 1, Thereby preventing foreign matter from being adsorbed arbitrarily.

The door 30 is formed with a see-through window 32 for identifying the internal state of the sub rack 1 even when the door 30 is closed. The viewing window 32 is formed of transparent or semi-transparent synthetic resin or glass.

In addition, the door 30 is formed with a handle 34 for facilitating opening and closing of the door 30 through an operator. When the door 30 is closed, the handle 34 is housed inside and has a beautiful design of the sub rack 1. When the door 30 is to be opened, the handle 34 So that the worker can grasp the protruding handle 34 to facilitate the opening of the door 30.

The assembling and operation states of the modular optical splitter fixing sub rack configured as described above will be described below.

First, the first and second frames 210 and 220 and the splitter guide 230 are sequentially positioned from the outside to the inside, and are configured to be opposed to the top and the bottom. At this time, one end of the splitter guide 230 is fixed to the fixed blade 229 of the second frame 220 by the fastening means.

The side frames 240 are fixed to both sides of the side surfaces of the first and second frames 210 and 220 and the splitter guide 230 by fastening means.

The lower frame 260 is fixed to the lower ends of the first and second frames 210 and 220 and the splitter guide 230 by fastening means.

Next, one end of the door 30 is connected to the front and rear surfaces of the lower frame 260 through the hinges 40, thereby completing the configuration of the sub rack 1 as a whole. Of course, the present invention is not limited to the above-described assembling method, and it is not limited to the assembling procedure in the case where the sub rack 1 having the housing shape is easily assembled.

When the assembling of the sub rack 1 is completed in the above manner, the sub rack 1 is fixed to the rack 110.

At this time, the position of the fixing bracket 250 fixed to the side frame 240 is changed according to the size of the rack 110, for example, 19 "or 21". That is, when the rack 110 is 19 ", the first fixing part 252 protrudes, and when the rack 110 is 21", the second fixing part 254 protrudes.

The sub rack (1) is fixed according to the size of the rack (110) by the above configuration.

When the optical splitter 10 is inserted into the sub rack 1 after the door 30 is opened, the inserted optical splitter 10 is inserted along the splitter guide 230. When the optical splitter 10 is inserted into the sub rack 1, When one end of the optical splitter 10 is in close contact with the extended blade 225 of the second frame 220, the insertion of the optical splitter 10 is completed. When the one end of the optical splitter 10 and the extension vane 225 are fastened by the fastening means, the fixing is completed.

The optical fiber connected to the optical splitter 10 is inserted from the side to the inside through the through hole 242 of the side frame 240 and is connected to the input side terminal 12. An optical fiber is connected to the output side terminal 14 formed on the opposite side of the input side terminal 12 and is discharged from the inside through the side surface of the side frame 240 through the through hole 242.

The optical fibers entering the sub rack 1 collect adjacent optical fibers through a plurality of clips 263 along the longitudinal direction of the first plane portion 264 of the lower frame 260, It is preferable that damage and arrangement of the components are easily performed.

Meanwhile, it is preferable that display means is formed so that the input or output side of the optical fibers connected to the sub rack 1 can be easily distinguished. For example, the input side may be displayed in blue, the output side may be displayed in red, or may be identified by a specific shape or mark.

The above description is only one embodiment for implementing a module-type optical splitter fixing sub rack, and the present invention is not limited to the above-described embodiment. It will be understood by those skilled in the art that various changes may be made without departing from the spirit of the invention.

1: Sub rack 10: Optical splitter
20: Case 210: First frame
212: first upper surface 214: first bent portion
216: first side bend 220: second frame
222: second upper surface 224: second bent portion
225: extension wing 226: second side bend
228: third bent portion 229: fixed blade
230: splitter guide 232: coupling member
234: Guide protrusion 236: Inclined surface
240: side frame 242: through hole
250: fixing bracket 252: first fixing portion
254: second fixing portion 256: first fastening hole
258: second fastening hole 260: lower frame
262: fourth bent portion 263: clip
264: first plane portion 266: second inclined plane
268: second plane portion 30: door
32: Viewing window 34: Handle
40: HINGE

Claims (5)

A case 20 for supporting the optical splitter 10 to be detached and attached to the inside thereof; And
And a door (30) formed on each of a front surface and a rear surface of the case (20);
The optical splitter 10 is separately formed on the front surface and the rear surface, and constitutes an input side terminal 12 and an output side terminal 14 so as to easily identify an easy connection and connection state of the optical fiber;
The case 20 includes first and second frames 210 and 220 and a splitter guide 230 sequentially from the outside to the inside and the side frame 240 is fixed to both sides of the side, To form a lower frame 260;
The side frame 240 includes a fixing bracket 250 fixed to the rack 110 to convert the size of the sub rack 1 so that the sub rack 1 can be used as a general purpose according to the size of the rack 110.
The fixing bracket 250 includes a first fastening hole 256 to be fastened to the side frame 240 by fastening means and a second fastening hole 258 to be fastened to the rack 110 on the other side by fastening means. A first fixing part 252 which is formed with a first fixing part 252; And
The first fixing part 256 is vertically formed at the first fixing part 252 and is fixed to the side frame 240 at one side by fastening means and the second fastening hole 256 is fastened at the other side to the rack 110 by the fastening means. And a second fixing portion 254 on which a fastening hole 258 is formed;
The first and second fixing portions 252 and 254 are configured to selectively fix the first or second fixing portions 252 and 254 according to the size of the rack 110 as the lengths thereof are different. Being;
The second frame 220 includes a first upper surface 222 forming an upper portion, a second bent portion 224 bent at a front surface of the first upper surface 222, A second side bending portion 226 formed at both sides of the side surface of the first upper surface 222 to fix the side frame 240 and a third bending portion 228 bent at the rear surface of the first upper surface 222, And a fixed blade (229) extending horizontally in the third bent portion (228) to fix one end of the splitter guide (230);
The second frame 220 is formed as a pair of upper and lower sides facing each other on the front surface and the rear surface, respectively;
The second bent portion 224 includes an extension wing 225 which is recessed at a predetermined depth and extends to one side so that one end of the optical splitter 10 is fixed to the front or rear surface by the fastening means;
Each of the opposite ends of the side frame 240 includes a through hole 242 which can be gripped by the operator and communicated with the outside so as to allow the optical fiber to enter and exit the inside of the sub rack 1 from the side;
The door 30 is connected to one side of the lower frame 260 by a hinge 40 so as to be able to open and close the door 30;
The door 30 includes a see-through window 32 through which the inside of the sub rack 1 can be seen, and a handle 34 for allowing a worker to grip the side door 30;
The lower frame 260 includes a fourth bent portion 262 formed vertically inward from both ends of the outer side, a first flat portion 264 having a predetermined length in the fourth bent portion 262, A second planar portion 268 which is planar in the second inclined plane 266 and a second inclined plane 266 inclined at a constant angle in the first planar portion 264;
And a sub rack for fixing the optical splitter in the form of a module. delete delete delete delete

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