A 5G fronthaul outdoor dustproof box

Abstract

The present invention discloses a 5G fronthaul outdoor dustproof box, including a box body, a partition is connected inside the box body, a receiving groove for accommodating an optical cable adapter is arranged on the partition, the partition divides the inside of the box body into a first chamber and a second chamber, a waterproof joint is connected to the first chamber, an optical fiber fusion splicing device is connected inside the first chamber, the optical fiber fusion splicing device includes a plurality of slots for accommodating heat shrink tubes, a space for placing a single device of a coarse wavelength division multiplexer is formed between the optical fiber fusion splicing device and the partition, a plurality of rows of cable trough groups are arranged on the second chamber, a sealing strip is arranged between two adjacent rows of cable trough groups, each row of cable trough groups includes a plurality of branch cable troughs, a first cover is connected to the first chamber, the first cover is used to close the first chamber, and a second cover is connected to the second chamber, the second cover is used to close the second chamber. The present invention effectively improves the protection performance of the dustproof box and the stability of the internal working environment.

Description

Technical Field

[0001] The present invention relates to the field of communication optical fiber technology, and in particular to a 5G fronthaul outdoor dustproof box. Background Art

[0002] With the large-scale construction of 5G networks, the consumption of optical cable resources for fronthaul has increased significantly. In order to make the existing network optical cable resources meet the needs of new 5G sites, passive wavelength division technology is now usually used to expand the optical fiber between DU (base station controller distributed unit) and AAU (base station active antenna unit) to effectively save optical cable resources. Since the communication equipment with wavelength division function in passive wavelength division technology is located outdoors, in order to ensure that the fronthaul optical cable system needs to have high reliability for outdoor applications, a fronthaul outdoor dustproof box is generally required.

[0003] The fronthaul outdoor dustproof box is a box used in base station towers to connect and manage optical fibers and has a wave splitting function. However, the traditional outdoor dustproof box has poor protection performance and the stability of the working environment inside the dustproof box is not good, which cannot meet the use requirements. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a 5G fronthaul outdoor dustproof box that can effectively improve the protection performance and the stability of the internal working environment.

[0005] In order to solve the above technical problems, the technical solutions provided by the present invention are as follows:

[0006] A 5G fronthaul outdoor dustproof box, comprising a box body, a partition connected to the inside of the box body, a receiving groove for accommodating an optical cable adapter is arranged on the partition, the partition divides the inside of the box body into a first chamber and a second chamber, the first chamber is connected to a waterproof joint, the inside of the first chamber is connected to an optical fiber fusion splicing device, the optical fiber fusion splicing device comprises a plurality of slots for accommodating heat shrink tubes, a space for placing a single device of a coarse wavelength division multiplexer is formed between the optical fiber fusion splicing device and the partition, a plurality of rows of cable trough groups are arranged on the second chamber, a sealing strip is arranged between two adjacent rows of cable trough groups, each row of cable trough groups comprises a plurality of branch cable troughs, the branch cable troughs are used to pass optical cable branches, a first cover is connected to the first chamber, the first cover is used to close the first chamber, and a second cover is connected to the second chamber, the second cover is used to close the second chamber.

[0007] In one embodiment, a plurality of arc-shaped fiber-wound plates are connected to the second cavity.

[0008] In one embodiment, the curvature radius of the arc-shaped fiberboard is not less than 30 mm.

[0009] In one embodiment, a first sealing groove is provided on the contact surface between the first chamber and the first cover, a second sealing groove is provided on the contact surface between the second chamber and the second cover, and the sealing strips are connected to both the first sealing groove and the second sealing groove.

[0010] In one embodiment, a third sealing groove is provided at the bottom of the receiving groove, and the sealing strip is also connected to the third sealing groove.

[0011] In one embodiment, one end of the second cover is hinged to the box body, and the other end is provided with a first groove, and the box body is provided with a second groove, and the first groove and the second groove are connected by a snap-fit ​​component, and the snap-fit ​​component includes a hinged snap-fit ​​body and a snap-fit ​​ring, the snap-fit ​​body is snapped into the first groove, and the snap-fit ​​ring is snapped into the second groove.

[0012] In one embodiment, the first chamber and the first cover are connected by a countersunk screw, a first mounting hole is provided on the first chamber, a second mounting hole is provided on the first cover, the countersunk screw passes through the first mounting hole and the second mounting hole at the same time, and the second mounting hole is a countersunk hole.

[0013] In one embodiment, the countersunk screw includes a cap body and a screw rod, one end of the cap body is connected to the screw rod, and the other end is provided with a plurality of hexagonal holes.

[0014] In one embodiment, back plate mounting holes are disposed on the first chamber and the second chamber.

[0015] In one embodiment, a dustproof circular plate is detachably connected to the back plate mounting hole.

[0016] The present invention has the following beneficial effects: the 5G fronthaul outdoor dustproof box of the present invention effectively improves its protection performance and the stability of the internal working environment, and has a higher IP protection level as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is an angled structural diagram of the 5G fronthaul outdoor dustproof box of the present invention;

[0018] Figure 2 yes Figure 1 Another perspective structural diagram of the dustproof box shown;

[0019] Figure 3 is a schematic diagram of the structure of the dustproof box when the first cover and the second cover are opened;

[0020] Figure 4 yes Figure 1The structural schematic diagram of the box body shown;

[0021] Figure 5 yes Figure 1 A schematic structural diagram of the first cover shown;

[0022] Figure 6 yes Figure 1 A schematic structural diagram of the second cover shown;

[0023] Figure 7 yes Figure 1 A schematic diagram of the structure of the fastener shown;

[0024] Figure 8 yes Figure 1 The installation diagram of the dustproof box, optical cable adapter, coarse wavelength division multiplexer and heat shrink tube shown;

[0025] Fig. 9 yes Figure 8 Schematic diagram of the structure of a countersunk screw.

[0026] In the figure: 1, box body, 2, partition, 21, receiving groove, 211, third sealing groove, 3, first chamber, 31, joint hole, 32, first sealing groove, 33, first mounting hole, 4, second chamber, 41, cable groove group, 411, branch cable groove, 42, second sealing groove, 5, first cover, 51, second mounting hole, 6, second cover, 61, first groove, 7, waterproof joint, 8, optical fiber fusion splicing device, 81, slot, 9, arc-shaped fiber winding board, 10, second groove, 11, fastener, 111, fastener body, 112, fastener ring, 12, countersunk screw, 121, cap body, 122, hexagonal hole, 123, screw, 13, back plate mounting hole, 14, dustproof circular plate, 15, back plate, 16, heat shrink tube, 17, coarse wavelength division multiplexer single device, 18, optical cable adapter. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0028] like Figure 1-Figure 3 As shown, this embodiment discloses a 5G fronthaul outdoor dustproof box, including a box body 1, a partition 2 is connected to the inside of the box body 1, and a receiving groove 21 for accommodating an optical cable adapter 18 is provided on the partition 2. The partition 2 divides the inside of the box body 1 into a first chamber 3 and a second chamber 4;

[0029] The first chamber 3 is connected with a waterproof connector 7, which is used as an optical cable entrance; for example, a connector 31 is provided on the first chamber 3 to install the waterproof connector 7;

[0030] The first chamber 3 is internally connected with an optical fiber fusion splicing device 8, which includes a plurality of slots 81 for accommodating heat shrink tubes 16, and a space for placing a coarse wavelength division multiplexer single device (CWDM single device) 17 is formed between the optical fiber fusion splicing device 8 and the partition plate 2;

[0031] The second chamber 4 is provided with multiple rows of cable trough groups 41, and sealing strips are provided between two adjacent rows of cable trough groups 41. Each row of cable trough groups 41 includes multiple branch cable troughs 411, and the branch cable troughs 411 are used to pass optical cable branches;

[0032] The first chamber 3 is connected to a first cover 5 for closing the first chamber 3 , and the second chamber 4 is connected to a second cover 6 for closing the second chamber 4 .

[0033] The above structure divides the box body 1 into two independent chambers through the partition 2, namely the first chamber 3 and the second chamber 4. The first chamber 3 is used to accommodate various components of the combiner / splitter, such as the heat shrink tube 16, the coarse wavelength division multiplexer single device (CWDM single device) 17, etc., to realize the characteristics of wavelength division multiplexing. The second chamber 4 is used to lead out the branched optical cable and lead it out. By independently arranging the first chamber 3 and the second chamber 4, the wavelength division multiplexing and the branch optical cable lead-out management can be carried out in independent spaces, effectively avoiding mutual interference between the two and ensuring the stability of their respective working environments; in addition, by the first cover and the second cover, and by arranging a sealing strip between two adjacent rows of cable trough groups, the sealing of the first chamber 3 and the second chamber 4 can be effectively improved, thereby improving the protection performance of the dustproof box and being more conducive to ensuring the stability of the working environment inside the box.

[0034] In addition, the various components of the combiner / splitter are placed in the first chamber 3, and the various components of the combiner / splitter (heat shrink tube 16, CWDM single device and optical fiber, etc.) are placed in corresponding positions, avoiding the need to directly place the finished products of the combiner / splitter in a traditional dustproof box, which not only saves the use space, but also saves the cost of the finished products of the combiner / splitter; and by placing the various components of the combiner / splitter in corresponding appropriate positions, it is also more conducive to wavelength division multiplexing operations and improves operating efficiency.

[0035] The heat shrink tube 16 is used to realize the optical fiber fusion splicing function.

[0036] In one embodiment, a gap groove is formed between two adjacent rows of cable groove groups 41 , a sealing groove is provided at the bottom of the gap groove, and a sealing strip is connected inside the sealing groove.

[0037] In one embodiment, a plurality of arc-shaped fiber winding plates 9 are connected to the second chamber 4 to be used for redundant storage and fiber winding management of optical fibers required for wavelength division multiplexing in the first chamber 3 .

[0038] In one embodiment, the curvature radius of the arc-shaped fiber winding plate 9 is not less than 30 mm to avoid insertion loss and prevent damage to the optical fiber.

[0039] In one embodiment, the length of the slot 81 is smaller than the length of the heat shrink tube 16 to facilitate the placement and removal of the heat shrink tube 16 .

[0040] In one embodiment, a first sealing groove 32 is provided on the contact surface between the first chamber 3 and the first cover 5, and a second sealing groove 42 is provided on the contact surface between the second chamber 4 and the second cover 6. Sealing strips are connected to both the first sealing groove 32 and the second sealing groove 42 to improve the sealing performance.

[0041] In one embodiment, a third sealing groove 211 is disposed at the bottom of the receiving groove 21 , and a sealing strip is also connected to the third sealing groove 211 .

[0042] In one embodiment, if Figure 2 and Figure 6 As shown, one end of the second cover 6 is hinged to the box body 1, and the other end is provided with a first slot 61. The box body 1 is provided with a second slot 10. The first slot 61 and the second slot 10 are connected by a snap fitting 11. Figure 7 As shown, the buckle 11 includes a buckle body 111 and a buckle ring 112 which are hinged to each other. The buckle body 111 is buckled in the first slot 61, and the buckle ring 112 is buckled in the second slot 10. The buckle connection structure can ensure the complete closure of the box body 1 and the second cover 6, and improve the sealing and protective effect. In addition, the second cover 6 is hinged to the box body 1, so that the second cover 6 can be opened and closed freely, which is easy to operate.

[0043] In one embodiment, the first chamber 3 and the first cover 5 are connected by countersunk screws 12, such as Figure 4 and Figure 5 As shown, the first chamber 3 is provided with a first mounting hole 33, the first cover 5 is provided with a second mounting hole 51, the countersunk screw 12 passes through both the first mounting hole 33 and the second mounting hole 51, and the second mounting hole 51 is a countersunk hole, so that the countersunk screw 12 is completely located in the countersunk hole, which increases the aesthetics. The above structure adopts a connection method using screws, which can effectively ensure the connection reliability, and at the same time prevent the first cover 5 from being easily opened, providing a safe working space for the first chamber 3.

[0044] Specifically, Figure 4 and Figure 5As shown, first mounting holes 33 may be provided at the four corners of the first chamber 3, and second mounting holes 51 may be provided at the four corners of the first cover 5. A first mounting hole 33 and a corresponding second mounting hole 51 form a group, and each group is connected by a countersunk screw 12 to better ensure installation reliability.

[0045] In one embodiment, if Fig. 9 As shown, the countersunk screw 12 includes a cap body 121 and a screw rod 123. One end of the cap body 121 is connected to the screw rod 123, and the other end is provided with a plurality of hexagonal holes 122 to cooperate with a special disassembly tool. This structure requires a special disassembly tool to unscrew the countersunk screw 12 to remove the first cover 5, thereby improving the safety of use.

[0046] In one embodiment, back plate mounting holes 13 are provided on the first chamber 3 and the second chamber 4 for connecting with a back plate 15 through bolts, and the back plate 15 is used to be fixed to the base station tower.

[0047] In one embodiment, a dustproof circular plate 14 is detachably connected to the back plate mounting hole 13 to achieve a sealing effect. When the back plate 15 needs to be connected, the dustproof circular plate 14 can be removed.

[0048] The 5G fronthaul outdoor dustproof box of this embodiment is used as follows: Figure 8 As shown, the optical cable adapter 18 is installed on the receiving groove 21 of the first chamber 3, and the heat shrink tube 16 is placed in the slot 81 of the optical fiber fusion splicing device 8, two heat shrink tubes 16 can be placed in each slot 81, and then 12 coarse wavelength division multiplexer single devices 17 of different bands are placed on one side of the optical fiber fusion splicing device 8 close to the direction of the optical cable adapter 18, and the core and pigtail of the required optical fiber of the wavelength division device can be wound on the arc-shaped fiber winding plate 9; the optical cable to be branched is inserted from the waterproof connector 7, and then the optical cable is divided into multiple optical cable branches, each optical cable branch is led out from the corresponding branch cable groove 411 of the second chamber 4, and one optical cable branch is passed through a branch cable groove 411; the box body is connected to the back plate 15 by bolts, and the back plate 15 is fixed on the base station tower, and finally the first cover 5 and the second cover 6 are closed to close the entire box body 1.

[0049] When the coarse wavelength division multiplexer single device 17 is installed, a strong double-sided adhesive tape can be used to stick the coarse wavelength division multiplexer single device 17 to the bottom of the box body, so that the single device is completely fixed to prevent it from being damaged by collision.

[0050] The 5G fronthaul outdoor dustproof box of this embodiment effectively improves its protection performance and the stability of the internal working environment, and has an overall high IP protection level.

[0051] The above-described embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or changes made by those skilled in the art based on the present invention are within the protection scope of the present invention. The protection scope of the present invention shall be subject to the claims.

Claims

1. A 5G fronthaul outdoor dustproof box, characterized in that: The invention comprises a box body, wherein a partition is connected to the inside of the box body, and a receiving groove for accommodating an optical cable adapter is arranged on the partition, and the partition divides the inside of the box body into a first chamber and a second chamber, and a waterproof joint is connected to the first chamber, and a fiber optic fusion splicing device is connected to the inside of the first chamber, and the fiber optic fusion splicing device comprises a plurality of slots for accommodating heat shrink tubes, and a space for placing a single device of a coarse wavelength division multiplexer is formed between the fiber optic fusion splicing device and the partition, and a plurality of rows of cable trough groups are arranged on the second chamber, and a sealing strip is arranged between two adjacent rows of cable trough groups, and each row of cable trough groups comprises a plurality of branch cable troughs, and the branch cable troughs are used to pass optical cable branches, and a first cover is connected to the first chamber, and the first cover is used to close the first chamber, and a second cover is connected to the second chamber, and the second cover is used to close the second chamber.

2. The 5G fronthaul outdoor dustproof box according to claim 1, characterized in that: The second chamber is also connected with a plurality of arc-shaped fiber winding plates.

3. The 5G fronthaul outdoor dustproof box as claimed in claim 2, characterized in that: The curvature radius of the arc-shaped fiberboard is not less than 30 mm.

4. The 5G fronthaul outdoor dustproof box according to claim 1, characterized in that: A first sealing groove is arranged on the contact surface between the first chamber and the first cover, a second sealing groove is arranged on the contact surface between the second chamber and the second cover, and the sealing strips are connected to the first sealing groove and the second sealing groove.

5. The 5G fronthaul outdoor dustproof box according to claim 1, characterized in that: A third sealing groove is arranged at the bottom of the receiving groove, and the sealing strip is also connected to the third sealing groove.

6. The 5G fronthaul outdoor dustproof box according to claim 1, characterized in that: One end of the second cover is hinged to the box body, and the other end is provided with a first groove. The box body is provided with a second groove. The first groove and the second groove are connected by a snap-fit ​​component. The snap-fit ​​component includes a hinged snap-fit ​​body and a snap-fit ​​ring. The snap-fit ​​body is snapped into the first groove, and the snap-fit ​​ring is snapped into the second groove.

7. The 5G fronthaul outdoor dustproof box according to claim 1, characterized in that: The first chamber and the first cover are connected by a countersunk screw. The first chamber is provided with a first mounting hole, and the first cover is provided with a second mounting hole. The countersunk screw passes through the first mounting hole and the second mounting hole at the same time, and the second mounting hole is a countersunk hole.

8. The 5G fronthaul outdoor dustproof box according to claim 7, characterized in that: The countersunk screw comprises a cap body and a screw rod, one end of the cap body is connected to the screw rod, and the other end is provided with a plurality of hexagonal holes.

9. The 5G fronthaul outdoor dustproof box according to claim 1, characterized in that: The first chamber and the second chamber are both provided with back plate mounting holes.

10. The 5G fronthaul outdoor dustproof box according to claim 9, characterized in that: A dustproof circular plate is detachably connected in the back plate mounting hole.

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