CN218938596U

CN218938596U - Optical fiber distribution frame unit box

Info

Publication number: CN218938596U
Application number: CN202320108632.4U
Authority: CN
Inventors: 徐东; 周艳芳; 扈士超; 肖志峰; 全湖生
Original assignee: T&S Communications Co Ltd
Current assignee: T&S Communications Co Ltd
Priority date: 2023-02-03
Filing date: 2023-02-03
Publication date: 2023-04-28
Anticipated expiration: 2033-02-03

Abstract

The utility model discloses an optical fiber distribution frame unit box, which comprises: a case (1); two guide rail brackets (2) with the same structure are symmetrically arranged at the left side and the right side in the box body (1); each guide rail bracket is provided with a plurality of guide rail grooves (21) which are arranged along the vertical direction, and hollowed-out parts (22) are arranged between the adjacent guide rail grooves; the left guide rail bracket and the right guide rail bracket form a pair of guide rail grooves at the same height; and a plurality of wiring trays (3) respectively inserted into the pairs of guide rail grooves of the two guide rail brackets to form a plurality of layers of wiring trays arranged in the vertical direction in the case (1); wherein each routing tray has a plurality of fiber optic adapter slots for mounting fiber optic adapters.

Description

Optical fiber distribution frame unit box

Technical Field

The utility model relates to the field of optical fiber communication, in particular to an optical fiber distribution frame unit box used in the scenes of optical fiber network distribution of a data center machine room and the like.

Background

In order to adapt to the high-speed development of optical fiber communication, a high-speed, high-density and miniaturized optical fiber connection mode becomes a development trend of optical fiber wiring of a data center. High density, high performance, easy to operate, easy to maintain 19 inch chassis becomes critical for data center fiber routing.

At present, the conventional 4U (U is a unit for representing the external size of a server, 4U refers to the box height of 177.8 mm) optical fiber distribution frame (OpticalDistributionFrame, ODF) has a unit box capacity of only 72 cores at most, and cannot meet the development requirement of high-speed communication of a data center.

Disclosure of Invention

In view of this, the utility model proposes a 4U19 inch 144-core high-density ODF unit box to make up for the defects of the existing box and meet the development requirements of high-speed communication of a data center.

The utility model provides the following technical scheme for achieving the purposes:

a fiber optic distribution frame unit enclosure comprising: a case; two guide rail brackets with the same structure are symmetrically arranged at the left side and the right side in the box body; each guide rail bracket is provided with a plurality of guide rail grooves which are arranged along the vertical direction, and hollow parts are arranged between the adjacent guide rail grooves; the left guide rail bracket and the right guide rail bracket form a pair of guide rail grooves at the same height; and a plurality of wiring trays respectively inserted into the pairs of guide rail grooves of the two guide rail brackets to form a plurality of layers of wiring trays arranged in the vertical direction in the box body; wherein each routing tray has a plurality of fiber optic adapter slots for mounting fiber optic adapters.

Further, the box includes bottom plate, roof, front panel, rear panel and two curb plates about, the front panel is movable panel, is equipped with the installation hangers on two curb plates about respectively.

Further, the lower edge of the front panel is movably connected with the bottom plate so as to be convenient for being turned down and opened.

Further, the lower edge of the front panel is mounted on the bottom plate through a hinge to realize 270-degree rotary opening and closing; the upper edge of the front panel can be locked with the top plate in a locking manner.

Further, a positioning boss for preventing the wiring tray from sliding off is arranged on the groove wall of one side of each guide rail groove; and clamping grooves matched with the positioning bosses are respectively formed in the left side and the right side of each wiring tray.

Further, each of the wiring trays includes: the optical fiber adapter comprises a chassis, an optical fiber clamping seat, an optical fiber adapter clamping strip, a detachable wire arranging ring and a top cover assembled with the chassis, wherein the optical fiber clamping seat, the optical fiber adapter clamping strip and the detachable wire arranging ring are arranged on the chassis; the optical fiber adapter clamping strip is provided with a plurality of optical fiber adapter slots, and each optical fiber adapter slot is provided with an optical fiber adapter; the detachable wire arrangement ring is arranged at one end of the optical fiber adapter clamping strip.

Further, the optical fiber adapter clamping strip is arranged along the first side edge of the chassis, a mounting sheet is arranged at the second side edge of the chassis, and a mounting groove for mounting the top cover is formed in the mounting sheet; wherein the first side and the second side of the chassis are opposite sides.

Further, the wiring tray further includes: two magnetic blocks respectively arranged at two ends of the optical fiber adapter clamping strip; one side of the top cover is provided with a bending piece with a raised edge, and two ends of the edge of the other side opposite to the one side are respectively provided with a metal gasket; the protrusions at the edges of the bending pieces are inserted into the mounting grooves, and the two metal gaskets are respectively adsorbed with the two magnetic blocks in a corresponding mode, so that the chassis and the top cover are assembled and fixed.

Further, a hollowed-out part is arranged between adjacent guide rail grooves of each guide rail bracket.

Further, each of the fiber optic adapter slot structures is foolproof to ensure that the fiber optic adapter is installed in the correct orientation.

The technical scheme of the utility model has the beneficial effects that: the multi-layer wiring tray can be installed through the guide rail brackets in the case, a plurality of fiber optic adapter slots are arranged on each wiring tray for installing fiber optic adapters, high-density fiber distribution in one case can be realized, for example, 12 guide rail slots are arranged on each guide rail bracket in the vertical direction, then 12 wiring trays can be inserted into the case to form 12 layers of wiring trays arranged in the vertical direction, and then 12 fiber optic adapter slots are arranged on each wiring tray, so that 144-core high-density fiber distribution in one 19-inch standard case can be realized.

Drawings

Fig. 1 is a schematic view of the appearance of a unit box of an optical distribution frame according to an embodiment of the present utility model.

Fig. 2 is a schematic diagram of a unit box of an optical distribution frame according to an embodiment of the present utility model.

Fig. 3 is a front view of a fiber distribution frame unit cabinet in accordance with an embodiment of the present utility model.

Fig. 4 is a schematic view of a rail bracket of a fiber distribution frame unit enclosure in accordance with an embodiment of the present utility model.

Fig. 5 is a schematic view of a routing tray of a fiber distribution frame unit enclosure in accordance with an embodiment of the present utility model.

Fig. 6 is a schematic view of the chassis structure of the wiring tray according to the embodiment of the present utility model.

Fig. 7 is a schematic diagram of a top cover structure of a wiring tray according to an embodiment of the present utility model.

Fig. 8 is a schematic view of a chassis mounting plate of a cabling tray according to an embodiment of the utility model.

Fig. 9 is a chassis wiring schematic of a wiring tray of an embodiment of the present utility model.

Detailed Description

The utility model will be further described with reference to the following drawings in conjunction with specific embodiments. It should be noted that, when describing the technical scheme of the application, the spatial azimuth words or positioning words such as "left", "right", "top", "bottom", "upper", "lower" and the like are used for describing the relative positional relationship between the constituent components of the product, and do not represent the swaying direction of the product only shown in the figures; in practice, the spatially relative descriptions describing the orientation of the product should be interpreted in a similar manner as the product is rotated or viewed from different angles (e.g., 90 degrees or other orientations).

Referring to fig. 1 to 3, an optical fiber distribution frame unit box provided in an embodiment of the present utility model includes: the box 1, two guide rail brackets 2 with the same structure symmetrically installed at the left side and the right side in the box 1, and a plurality of wiring trays 3 installed on the two guide rail brackets. Fig. 4 is a schematic view of a rail bracket, referring to fig. 4, each rail bracket 2 has a plurality of rail grooves 21 arranged along a vertical direction, and hollow portions 22 (for facilitating routing) are disposed between adjacent rail grooves. The term "vertical direction" as used herein refers to the height direction of the case based on the relative definition of the guide rail bracket when installed in the case and swinging as shown in fig. 2 or 3. In the case, two guide rail grooves of the left guide rail bracket and the right guide rail bracket at the same height form a pair of guide rail grooves, and one wiring tray 3 is inserted into the pair of guide rail grooves along the horizontal direction to realize installation (namely, each wiring tray occupies a pair of guide rail grooves). That is, the plurality of wiring trays 3 are respectively inserted into the pairs of rail grooves of the two rail brackets in the horizontal direction, thereby forming a plurality of wiring trays arranged in the vertical direction in the case 1. Wherein each routing tray has a plurality of fiber optic adapter slots for mounting fiber optic adapters. With the optical fiber distribution frame unit box having such a structure, it is possible to realize a high-density distribution of "N (layer) ×m (core/layer)", where N represents the number of layers (number) of wiring trays mounted by the guide rail brackets on both sides and M represents the number of optical fiber adapters per layer (each) of wiring tray. Therefore, the number of the guide rail grooves on the guide rail bracket and the number of the fiber optic adapter grooves on each wiring tray can be designed according to actual needs, for example, 12 guide rail grooves are formed in each guide rail bracket, so that 12 layers of wiring trays can be assembled in the box body, and when 12 fiber optic adapter grooves are formed in each wiring tray (12 simplex fiber optic adapters can be installed), high-density fiber distribution with 144 cores can be realized.

In some embodiments, the box body 1 of the optical fiber distribution frame unit box may be similar to a cuboid, referring to fig. 1 to 3, the box body 1 includes a bottom plate, a top plate 11, a front panel 12, a rear panel, a left side plate and a right side plate 13, the front panel 12 is a movable panel, the left side plate is provided with a mounting suspension tab 14, the right side plate is provided with a mounting suspension tab 15, and the

mounting suspension tabs

14 and 15 have the same structure and are symmetrically mounted on the left side plate and the right side plate. In the installation example of the 19-inch standard case, the horizontal distance d between the installation holes at the corresponding positions of the left and right hanging lugs is 465mm, the vertical distance h between the upper and lower installation holes of each hanging lug is 133.35mm, and the horizontal distance between the outermost sides of the left and right hanging lugs is 482mm.

With continued reference to fig. 2 and 3, in some preferred embodiments, the lower edge of the front panel 12 of the case 1 is movably connected to the bottom panel to facilitate the opening by being turned down. For example, the lower edge of the front panel 12 is mounted to the bottom panel by a hinge, enabling 270 ° rotational opening and closing. The upper edge of the front panel 12 is locked with the top plate 11 by the lock catch 16 after the front panel is closed, and the state shown in fig. 1 is formed.

Referring to fig. 4, a schematic structural diagram of the guide rail bracket 2 is shown, one end of each guide rail groove 21 has an opening for inserting the wiring tray, and a positioning boss 211 for preventing the wiring tray from sliding off is provided on one side groove wall of each guide rail groove 21, and the number of the positioning bosses can be two; correspondingly, the left and right sides of each wiring tray 3 are respectively provided with a clamping groove 311 (as shown in fig. 6) matched with the positioning boss 211.

In some embodiments, the structure of the wiring tray 3, see fig. 5 to 8, includes: a chassis 31, a fiber holder 32, a fiber adapter clip 33 and a detachable wire loop 34 provided on the chassis 31, and a top cover 35 assembled with the chassis 31. Wherein the fiber optic adapter card strip 33 has a plurality of fiber optic adapter slots, each of which is provided with a fiber optic adapter (LC-LC adapter) 36; the detachable wire loop 34 is mounted to one end of the fiber optic adapter card 33.

With continued reference to fig. 6 and 8, the fiber optic adapter card 33 is disposed along a first side edge of the chassis 31, and a mounting tab 37 is disposed at a second side edge of the chassis 31, the mounting tab 37 having a mounting slot 38 for mounting the top cover 35. Wherein the first side and the second side of the chassis 31 are opposite sides. To achieve assembly of the chassis 31 and the top cover 35, two

magnetic blocks

391, 392 are also provided at both ends of the fiber optic adapter card 33. Referring to fig. 7, one side of the top cover 35 has a bending piece 351 with a raised edge, and two ends of the edge of the other side opposite to the one side are respectively provided with a

metal gasket

352, 353; the protrusion at the edge of the bending piece 351 is inserted into the mounting groove 38, and the two

metal gaskets

352 and 353 and the two

magnetic blocks

391 and 392 are respectively adsorbed, so that the chassis 31 and the top cover 35 can be assembled and fixed. In addition, in order to facilitate the disassembly of the top cover 35, a hand grip hole, such as two circular holes illustrated in fig. 7, for facilitating the operation of the user may be formed in the top cover 35.

In some embodiments, the fiber optic adapter card 33 is made of PE material and has 12 slots for mounting a single-station LC adapter, each slot being structurally foolproof to ensure proper orientation of the adapter. Two

magnetic blocks

391, 392 may be attached to the ends of the fiber optic adapter strip 33 by screws. The detachable wire arranging ring 34 is connected to one end side of the fiber adapter card strip 33 by a snap-fit manner.

With continued reference to fig. 6, the chassis 31 of the wiring tray 3 is formed with a plurality of winding spacers 30, in some preferred embodiments, a double-layer channel is provided, so that the winding channel can be flexibly selected according to the length of the tail fiber, the wiring is convenient to store, the top end is provided with a baffle, the cable can be prevented from falling out of the position, the whole wiring is more attractive, and the fiber can be stored while being welded. Fig. 9 shows a two-layer via routing design in which outer via 51 and inner via 52 may be arranged. The chassis 31 is provided with a plurality of binding bridges 40 for binding wires for wiring/routing by a user, and can be used in combination with a wire binding and magic ribbon, and the middle two binding bridges are used for installing the optical fiber clamping seat 32.

An example of an application of the optical fiber distribution frame unit box of the embodiment of the present utility model is a 19 inch 4U unit box, and as shown in fig. 2, 12 wiring trays may be installed to form 12 layers of wiring space, and 12 adapters are disposed on each layer (i.e., each wiring tray), and the total assembly core number may reach 144 cores. The wiring tray is inserted into the guide rail bracket, can be flexibly pulled out, and is convenient for wiring.

The foregoing is a further detailed description of the utility model in connection with the preferred embodiments, and it is not intended that the utility model be limited to the specific embodiments described. It will be apparent to those skilled in the art that several equivalent substitutions and obvious modifications can be made without departing from the spirit of the utility model, and the same should be considered to be within the scope of the utility model.

Claims

1. An optical fiber distribution frame unit enclosure, comprising:

a case (1);

two guide rail brackets (2) with the same structure are symmetrically arranged at the left side and the right side in the box body (1); each guide rail bracket is provided with a plurality of guide rail grooves (21) which are arranged along the vertical direction; the left guide rail bracket and the right guide rail bracket form a pair of guide rail grooves at the same height;

and a plurality of wiring trays (3) respectively inserted into the pairs of guide rail grooves of the two guide rail brackets to form a plurality of layers of wiring trays arranged in the vertical direction in the case (1); each wiring tray is provided with a plurality of fiber optic adapter slots for installing fiber optic adapters.

2. The optical distribution frame unit enclosure of claim 1, wherein: the box (1) comprises a bottom plate, a top plate (11), a front panel (12), a rear panel and left and right side plates, wherein the front panel (12) is a movable panel, and mounting hangers are respectively arranged on the left and right side plates.

3. The optical distribution frame unit enclosure of claim 2, wherein: the lower edge of the front panel (12) is movably connected with the bottom plate so as to be convenient for being turned down and opened.

4. The optical distribution frame unit enclosure of claim 3, wherein: the lower edge of the front panel (12) is mounted on the bottom plate through a hinge to realize 270-degree rotary opening and closing; the upper edge of the front panel (12) can be locked with the top plate (11) in a locking manner.

5. The optical distribution frame unit enclosure of claim 1, wherein: a positioning boss (211) for preventing the wiring tray from sliding off is arranged on the groove wall of one side of each guide rail groove (21); the left side and the right side of each wiring tray (3) are respectively provided with a clamping groove (311) which is matched with the positioning boss.

6. The optical distribution frame unit cabinet according to claim 1, wherein each of said routing trays (3) comprises: the optical fiber adapter comprises a chassis (31), an optical fiber clamping seat (32), an optical fiber adapter clamping strip (33) and a detachable wire arranging ring (34) which are arranged on the chassis (31), and a top cover (35) assembled with the chassis (31); wherein, the optical fiber adapter clamping strip (33) is provided with a plurality of optical fiber adapter slots, and each optical fiber adapter slot is provided with an optical fiber adapter (36); the detachable wire arrangement ring (34) is mounted at one end of the optical fiber adapter clamping strip (33).

7. The fiber distribution frame unit enclosure of claim 6, wherein: the optical fiber adapter clamping strip (33) is arranged along the first side edge of the chassis (31), a mounting sheet (37) is arranged at the second side edge of the chassis (31), and a mounting groove (38) for mounting the top cover (35) is formed in the mounting sheet (37); wherein the first side and the second side of the chassis (31) are opposite sides.

8. The optical fiber distribution frame unit cabinet of claim 7, wherein the routing tray (3) further comprises: two magnetic blocks respectively arranged at two ends of the optical fiber adapter clamping strip (33); one side of the top cover (35) is provided with a bending sheet (351) with a raised edge, and two ends of the edge of the other side opposite to the one side are respectively provided with a metal gasket; the protrusions at the edges of the bending pieces (351) are inserted into the mounting grooves (38), and the two metal gaskets are respectively adsorbed with the two magnetic blocks in a corresponding mode, so that the chassis (31) and the top cover (35) are assembled and fixed.

9. The optical distribution frame unit enclosure of claim 1, wherein: a hollowed-out part (22) is arranged between adjacent guide rail grooves (21) of each guide rail bracket.

10. The fiber distribution frame unit enclosure of claim 6, wherein: each of the fiber optic adapter slot arrangements is foolproof to ensure that the fiber optic adapters (36) are properly oriented.