WO2023193146A1

WO2023193146A1 - Optical splitter module box and fiber distribution box

Info

Publication number: WO2023193146A1
Application number: PCT/CN2022/085356
Authority: WO
Inventors: 黄美金; 魏文振
Original assignee: 烽火通信科技股份有限公司
Priority date: 2022-04-06
Filing date: 2022-04-06
Publication date: 2023-10-12
Also published as: CN117043653A; CO2023017173A2

Abstract

An optical splitter module box and a fiber distribution box. The optical splitter module box comprises a box body, and, arranged in the box body, an optical splitter and first sealing rings. The optical splitter comprises an input end and output ends. One end of the box body is provided with first adapters, the output ends of the optical splitter being connected to the first adapters. The other end of the box body is provided with an input port, the input port being used for leading out the input end of the optical splitter. The one end of the box body is provided with first fixing positions, the first adapters being fixed to the box body by means of the first fixing positions and being sealed with the box body by means of the first sealing rings. The optical splitter module box can not only improve waterproofing, but also facilitate operation.

Description

Optical splitter module box and optical cable distribution box

Technical field

Embodiments of the present disclosure relate to an optical splitter module box and an optical cable splitter box.

Background technique

In the construction and deployment of fiber-to-the-home (FTTH), the product solutions of ODN (Optical Distribution Network, optical distribution network) affect the quality of the network, the cost of construction and the speed of advancement. This shows that the importance of ODN product solutions is not great. It goes without saying.

With the rapid development of 5G and Internet of Things technology, people have higher and higher demands for network bandwidth. Huge data traffic requires equipment to connect and transmit. The requirements for optical fiber connection density continue to increase, and the life of optical fiber connection equipment needs to be as long as possible. To extend, the installation steps need to be simplified as much as possible.

Contents of the invention

An embodiment of the present disclosure provides an optical splitter module box, which includes a box body, an optical splitter arranged inside the box body, and a first sealing ring. The optical splitter includes an input end and an output end. The box One end of the box body is provided with a first adapter, and the output end of the optical splitter is connected to the first adapter; the other end of the box body is provided with an input port, and the input port is used to split the light The input end of the adapter is led out; the one end of the box body is provided with a first fixed position, the first adapter is fixed to the first fixed position and sealed with the box body through the first sealing ring.

In some examples, the input end of the optical splitter includes an input optical fiber and a connector connected to the input optical fiber. The input port of the box is provided with a second adapter, and the second adapter is connected to the input optical fiber. Connect the connector to the input side of the optical splitter.

In some examples, the other end of the box body is provided with a second fixing position, and the second adapter is fixed to the second fixing position.

In some examples, the input end of the optical splitter includes a bare optical fiber portion, the input port of the box is provided with a slot, and the bare optical fiber portion of the input end of the optical splitter is led out from the slot.

In some examples, the output end of the optical splitter includes a plurality of connectors, the one end of the box is provided with a plurality of first adapters, the plurality of connectors and the plurality of first adapters One-to-one connection.

In some examples, the plurality of first adapters are arranged in a stepped manner.

In some examples, the box includes a first housing and a second housing, and the first housing and the second housing are detachably connected.

In some examples, a fixing structure is provided on the box body for fixing with the optical fiber distribution box.

At least one embodiment of the present disclosure also provides an optical cable distribution box, including a box body, a second sealing ring, and an optical splitter module box as provided in any of the above embodiments. The optical splitter module box is fixed on the on the box body and sealed with the box body through the second sealing ring.

In some examples, the box is provided with a third fixing position, the optical splitter module box is provided with a fixing structure, and the optical splitter module box is connected to the third fixing position through the fixing structure. The position is fixed to be fixed with the box.

In some examples, a fiber splice tray is provided in the box, and the fiber splice tray is configured to connect the output end of the incoming optical cable to the input end of the optical splitter.

In some examples, the box is also provided with an optical cable introduction port for introducing the optical cable.

In some examples, the optical cable entry port and the optical splitter module box are located on the same side of the box.

In some examples, the box includes an upper box and a lower box, and the upper box and the lower box are detachably connected.

In some examples, the box is provided with a mounting hole for installing the optical splitter module box. The hole wall of the mounting hole includes two parts, and the two parts are respectively located on the upper box. and the lower box.

Description of the drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings in the following description only relate to some implementations of the present disclosure. Examples are not limitations of the disclosure.

1A-1B are schematic structural diagrams of an optical splitter module box provided by at least one embodiment of the present disclosure;

2A-2B are schematic structural diagrams of an optical splitter module box provided by other embodiments of the present disclosure;

3A-3B are schematic structural diagrams of an optical splitter module box provided by some embodiments of the present disclosure;

4A-4B are schematic structural diagrams of an optical splitter module box provided by some embodiments of the present disclosure;

5A-5B are schematic structural diagrams of an optical cable distribution box provided by at least one embodiment of the present disclosure;

6A-6B are schematic structural diagrams of optical fiber cable distribution boxes provided by other embodiments of the present disclosure; and

7A-7B are schematic structural diagrams of optical fiber cable distribution boxes provided by further embodiments of the present disclosure.

Detailed ways

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings. The examples of the present disclosure will be more fully described with reference to the non-limiting example embodiments shown in the accompanying drawings and detailed in the following description. Embodiments and their various features and advantageous details. It should be noted that the features shown in the figures are not necessarily drawn to scale. This disclosure omits descriptions of known materials, components, and process techniques so as not to obscure example embodiments of the disclosure. The examples are given merely to facilitate an understanding of the implementation of example embodiments of the present disclosure, and to further enable those skilled in the art to practice the example embodiments. Accordingly, these examples should not be construed as limiting the scope of embodiments of the present disclosure.

Unless otherwise defined, technical terms or scientific terms used in this disclosure shall have the usual meaning understood by a person with ordinary skill in the art to which this disclosure belongs. "First", "second" and similar words used in this disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprising" mean that the elements or things appearing before the word include the elements or things listed after the word and their equivalents, without excluding other elements or things. "Up", "down", "left", "right", etc. are only used to express relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

Unless otherwise defined, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection. ; It can be directly connected, or it can be indirectly connected through an intermediary, or it can be an internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

If there is no conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

Optical fiber distribution box is a commonly used indoor and outdoor optical node product in FTTH-ODN networks. It is an interface device used to connect trunk optical cables and distribution optical cables outdoors, in corridors or indoors. For example, the fiber optic cable distribution box is used to connect the optical fiber cable to the home butterfly optical cable through an optical splitter after splicing, and complete the splicing, splicing and splitting functions of the optical cable in the fiber optic cable distribution box. Since the fiber optic cable distribution box is an outdoor device, it is required to be able to withstand drastic changes in climate and harsh working environments. It is waterproof and condensation-proof, waterproof and dust-proof, insect-proof and rodent-proof, and has strong resistance to impact damage.

Traditional optical cable distribution boxes have the following problems:

1) The waterproof optical cable distribution box assembly only considers the waterproofing of the shell and does not consider the waterproofing of the splitter box. This greatly reduces the life of the splitter. In some cases, the splitter box needs to be placed inside the fiber distribution box assembly. , construction workers need to perform optical fiber connection operations inside the box.

2) The optical cable splitter box assembly does not have an independent splitter box, and the optical splitter is directly exposed to the environment. It is easy to damage the splitter when laying out the trunk optical cable with the cover open; at the same time, it is limited by space and structure. The optical fiber of the splitter can only present a "complex spatial curve" state. The on-site construction is complicated and it is difficult to ensure the installation effect, which affects the performance of the splitter (insertion loss, return loss).

Therefore, it is necessary to design an end-face waterproof optical splitter module box and a waterproof optical cable splitter box assembly to overcome the above problems.

At least one embodiment of the present disclosure provides an optical splitter module box, which includes a box body and an optical splitter arranged inside the box body. The optical splitter includes an input end and an output end. One end of the box body A first adapter is provided, and the output end of the optical splitter is connected to the first adapter; the other end of the box is provided with an input port, and the input port is used to connect the input of the optical splitter The one end of the box body is provided with a first fixed position, the first adapter is fixed to the first fixed position and sealed with the box body through a first sealing ring.

At least one embodiment of the present disclosure also provides an optical fiber cable distribution box, including the above-mentioned optical splitter module box.

The optical splitter module box provided by the present disclosure has a waterproof design for the output port of the optical splitter by arranging the optical splitter in the box body and connecting it to the output end adapter on the box body through a sealing ring. , not only improves the convenience for construction workers to operate outside the box.

The optical cable splitter box provided by the present disclosure can realize pre-installation and on-site installation/replacement by setting up an independent optical splitter module box, which is easy to operate and improves efficiency.

In at least some examples, the optical splitter module box and optical fiber cable distribution box provided by the present disclosure can reach IP68 waterproof level, further improving the reliability of the product in outdoor environment applications.

1A-1B are schematic structural diagrams of an optical splitter module box provided by at least one embodiment of the present disclosure. As shown in the figure, the optical splitter module box 2 includes a box body 21 and an optical splitter (not shown) arranged inside the box body 21. A first adapter 22 is provided at one end of the box 21 for connection with the output end of the optical splitter. The other end of the box 21 is provided with an input port 242 for leading out the input end of the optical splitter.

2A-2B respectively show the box body without the adapter 22 installed and the structural schematic diagram of the adapter 22. As shown in the figure, a plurality of mounting holes 50 are provided on the end surface of the box for mounting a plurality of first adapters 22 . Each mounting hole 50 is provided with a fixing bit 51 , and each first adapter 22 is fixed to the corresponding fixing bit 51 through the corresponding mounting hole 50 . For example, the fixing position 51 can be implemented as a buckle or a thread, so as to be fixed with the first adapter 22 through a buckle or a thread.

The embodiment of the present disclosure does not limit the type of adapter. For example, it may be a conventional standard SC adapter or other types of adapters.

The embodiment of the present disclosure does not limit the installation form between the first adapter 22 and the box body 21 . For example, the first adapter 22 can be fixed to the fixing position 51 of the box body 21 through screw connection, snap connection, snap connection, welding, bonding, etc.

As shown in FIG. 2B , the optical splitter module box 2 also includes a first sealing ring 223 , for example, provided on the first adapter 22 . The first adapter 22 is sealed with the box body 21 through the first sealing ring 223 , thereby improving the The end face waterproof performance of the optical splitter module box. The first sealing ring 223 surrounds the first adapter 22 and fits with the hole wall or end surface of the mounting hole 50 to achieve sealing. For example, the first adapter 22 is provided with a slot surrounding the adapter body to fix the first sealing ring 223 .

For example, the material of the first sealing ring 223 may include rubber; the sealing form of the first sealing ring 223 may be radial sealing or extrusion sealing.

For example, the plurality of first adapters 22 can be arranged in a stepped manner on the end face, so that they can be staggered in space to avoid the accumulation of adapters on the same plane, which will cause the operation to be affected by surrounding adapters and connectors, thus helping to improve the arrangement of the adapters. Density and ease of handling. As a result, the number of ports in more segments can be achieved in the same volume, or a smaller box volume can be achieved in the same number of ports, which facilitates installation in various narrow scenes, as well as storage and transportation.

With reference to Figures 1A and 2A, the end surface of the box includes a first end surface 61 and a second end surface 62. The first end surface 61 protrudes from the second end surface 62 to form a step with the second end surface 62. The second end surface 62 completely surrounds Or not completely surrounding the first end surface 62 . A plurality of first adapters 22 are respectively installed on the first end surface 61 and the second end surface 62 .

For example, as shown in Figure 3A, the box 21 includes a first housing 23 and a second housing 24. The first housing 23 and the second housing 24 are detachably connected, for example, through threaded connection, snap connection, etc.

FIG. 3B shows a schematic structural diagram of the interior of the optical splitter module box provided by at least one embodiment of the present disclosure. As shown in FIG. 3B , the optical splitter 30 is provided inside the box. For example, a fixing structure 241 is provided inside the box for fixing the main part of the optical splitter 30 . For example, the fixed structure 241 may include a plurality of positioning parts arranged at intervals, and the number of positioning parts may be determined by the number of optical branches. Figure 3B shows an example of splitting into four channels.

The optical splitter 30 includes an input terminal, a main body part and an output terminal connected in sequence. The output end of the optical splitter 30 has a connector, which is connected to the first adapter 22 so that it can be connected to external components. The main body bypasses the fixed structure 241 and then splits the light through the input port 242 of the box. lead out from the input terminal of the converter.

For example, the external interface of the optical splitter 30 in this disclosure has two forms: 1) the input end of the optical splitter 30 is a bare optical fiber part without connectors, and the output end is N connectors; 2) the optical The input end of the splitter 30 includes an input optical fiber and a connector connected to the input optical fiber, for example, one connector, and an output end including N connectors; N is an integer greater than 1.

In case 1), the input end of the optical splitter 30 is led out through the slot provided on the box, as shown in Figure 4A. At this time, the input port of the box is implemented as slot 242a, and the optical splitter 30 The output optical fiber is led out through the slot 242a.

In case 2), the optical fiber at the output end of the optical splitter 30 is connected to an output connector, and the output connector is connected to an adapter provided on the box to be led out. As shown in Figure 4B, at this time, the port of the box is implemented as a second adapter 25, and a fixing bit 52 is provided on the box. The second adapter 25 is fixed to the fixing bit 52, and the fixing bit 52 can be implemented as a buckle. or threads, and the fixing method with the second adapter 25 is, for example, buckle fixing or screw thread fixing.

The optical splitter module box 2 provided by the embodiment of the present disclosure can be used alone or integrated with other functional boxes to meet the needs of different installation environments and users.

As shown in FIG. 1B , for example, the box body 21 (for example, the second housing 24 ) may be provided with a wall mounting hole 53 for wall mounting of the box body. For example, the box body 21 may be provided with a fixing structure 54 for installation and fixation with other functional boxes (such as optical fiber cable distribution boxes). For example, the fixing method can be buckle fixing or thread fixing. For example, the fixing structure 54 can be a buckle. For example, as shown in Figure 1B, the box body 21 can also be provided with a slot 210 surrounding the box body to provide a sealing ring to facilitate the sealing of the box body when it is installed on other functional boxes. This will be done in Detailed description is given in the following examples.

At least one embodiment of the present disclosure also includes an optical cable function box, including the optical splitter module box 2 provided in any of the above embodiments. This disclosure takes the optical cable function box as an optical cable distribution box as an example for illustrative description. However, this is not a limitation of the disclosure.

FIG. 5A is a schematic structural diagram of an optical fiber distribution box provided by at least one embodiment of the present disclosure. As shown in the figure, the optical fiber cable distribution box 3 includes a box body 31 and an optical splitter module box 2 installed on the box body 31 . One end of the optical splitter module box 2 provided with the first adapter 22 is exposed to the outside, so as to facilitate the operation of connecting the output end of the optical splitter to external components.

For example, the box 31 includes an upper box 311 and a lower box 322. The upper box 311 and the lower box 312 are detachably connected; for example, the two can be fixed by buckles or threads.

For example, as shown in FIG. 5A , the box 31 can also be defined in terms of an upper cover 313 and a lower cover 314 , that is, it includes an upper cover 313 and a lower cover 314 . For example, when unpacking and operating, the upper cover 313 can be flipped open. The opening of the upper cover 313 will not affect the box body of the optical splitter module box 2. For details, please refer to Figure 6B and Figure 7A below. For example, the upper cover 313 is a part of the upper box 311 .

For example, a plurality of marks 315 are provided on the upper surface of the box 31 , that is, the upper surface of the

upper box

311 or 313 , and the plurality of marks 315 are related to the plurality of third labels in the optical splitter module box 2 . One adapter 22 has a one-to-one correspondence, and each identifier 315 is used to identify the corresponding first adapter 22 . For example, the identification 315 may be the number of the corresponding first adapter 22 .

Figure 5B shows the box 31 and the optical splitter module box 2 not assembled together. The box 31 is provided with a mounting hole 310 for mounting the optical splitter box 2 . The contour of the mounting hole 310 roughly matches the contour of the optical splitter box 2 .

As shown in FIG. 5B , a fixing bit 55 is provided in the mounting hole 310 , and the optical splitter module box 2 is fixed to the fixing bit 55 through the mounting hole 310 . The box body of the optical splitter module box 2 is provided with a fixing structure 54 to cooperate with the fixing bit 55 to be installed on the box body 31 . For example, the fixing structure 54 is provided on at least two sides around the box body 21 , and the at least two sides include, for example, opposite two sides. For example, the fixing method is detachable, and may be buckled or screwed.

For example, as shown in FIG. 5B , the fixing structure 54 on the optical splitter module box 2 is implemented as a buckle, that is, the splitter module box 2 and the box 31 are connected by buckles. For example, at least one buckle is provided on each side of at least two sides of the box body of the optical splitter module box 2, and the at least two sides include opposite two sides.

When the optical splitter needs to be replaced, the entire optical splitter module box can be disassembled and replaced without involving excessive operations on the optical splitter (optical fibers), thereby avoiding damage to the optical splitter. The performance is reduced, the operation is convenient and the efficiency is improved.

For example, as shown in Figure 5B, the box body of the optical splitter module box 2 is also provided with a second sealing ring 224. When the optical splitter module box 2 is installed with the mounting hole 310, the second sealing ring 224 is connected to the box through the second sealing ring 224. The body 31 is sealed, thereby improving the waterproof performance of the optical fiber distribution box. The second sealing ring 224 surrounds the box body 21 of the optical splitter module box 2 and fits with the hole wall or end face of the mounting hole 310 to achieve sealing.

For example, the box body of the optical splitter module box 2 is provided with a slot surrounding the box body to fix the second sealing ring 224 . For example, the material of the second sealing ring 224 may include rubber; the sealing form of the second sealing ring 224 may be a radial seal or an extrusion seal.

For example, the hole wall of the mounting hole 310 is not an integral structure, but includes two upper and lower parts. The upper and lower parts are respectively located on the upper box 311 and the lower box 312. They can follow the upper box 311 and the lower box 312. The boxes 312 are separated from each other, which can facilitate the disassembly of the box body of the optical splitter module box 2 .

For example, other optical devices can be provided in the optical cable distribution box, and the optical devices are connected to the input end of the optical splitter in the box, thereby realizing the integration of the optical device module, making the optical distribution network optimized and easy to operate. Improve efficiency.

6A-6B are schematic structural diagrams of an optical fiber cable distribution box provided by another embodiment of the present disclosure. Figure 6A shows the internal structure of the optical fiber cable distribution box. As shown in Figure 6A, the optical fiber distribution box 3 is provided with a trunk optical cable 37 (an example of an optical fiber introduction cable in this disclosure) and a splicing fiber tray 32. The end face of the box 21 with the input port 242 is provided in the box. For example, the end surface and the end surface where the first adapter 22 is disposed are two opposite end surfaces.

The input end 301 of the optical splitter 30 is led out through the input port 242, and is welded to one end of the trunk optical cable 37 at A on the fiber splicing tray 32. The other end of the trunk optical cable 37 is fixed through the optical cable fixing unit 33, and is connected through the box. The optical cable introduction port 34 is led out to connect to external components. For example, as shown in FIG. 6A , the optical cable introduction port 34 and the optical splitter module box 2 are disposed on the same side of the box 31 .

Figure 6B shows the state of the optical fiber distribution box with its cover opened. For the sake of clarity, this figure omits the optical cable in the box.

7A and 7B respectively show a schematic diagram of an optical cable distribution box provided by yet another embodiment of the present disclosure. Figure 7A shows the state of the optical fiber distribution box with its cover opened. For the sake of clarity, the figure omits the optical cable in the box. Figure 7B shows a schematic structural diagram of an optical splitter module box in the optical fiber cable distribution box. Compared with the optical splitter module box in the embodiment shown in Figures 6A-6B, the optical splitter module box provides More adapter interfaces.

The above descriptions are only exemplary embodiments of the present disclosure and are not used to limit the scope of the present disclosure, which is determined by the appended claims.

Claims

An optical splitter module box, including a box body, an optical splitter arranged inside the box body, and a first sealing ring,

Wherein, the optical splitter includes an input end and an output end, a first adapter is provided at one end of the box, and the output end of the optical splitter is connected to the first adapter;

The other end of the box is provided with an input port, and the input port is used to lead out the input end of the optical splitter;

The one end of the box body is provided with a first fixing position, and the first adapter is fixed to the box body through the first fixing position and sealed with the box body through the first sealing ring.
The optical splitter module box according to claim 1, wherein the input end of the optical splitter includes an input optical fiber and a connector connected to the input optical fiber, and the input port of the box is provided with A second adapter, the second adapter is connected to the connector at the input end of the optical splitter.
The optical splitter module box according to claim 2, wherein the other end of the box body is provided with a second fixing position, and the second adapter is fixed to the box body through the second fixing position. .
The optical splitter module box according to claim 1, wherein the input end of the optical splitter includes a bare optical fiber part, the input port of the box body is provided with a slot, and the input end of the optical splitter The bare optical fiber at the end is led out from the slot.
The optical splitter module box according to claim 1, wherein the output end of the optical splitter includes a plurality of connectors, the one end of the box body is provided with a plurality of first adapters, and the plurality of first adapters are provided on the one end of the box body. Each connector is connected to the plurality of first adapters in a one-to-one correspondence.
The optical splitter module box according to claim 5, wherein the plurality of first adapters are arranged in a ladder shape.
The optical splitter module box according to claim 1, wherein the box body includes a first housing and a second housing, and the first housing and the second housing are detachably connected.
The optical splitter module box according to any one of claims 1 to 7, wherein the box body is provided with a fixing structure for fixing with the optical fiber cable distribution box.
An optical cable distribution box, including a box body, a second sealing ring and an optical splitter module box according to any one of claims 1 to 7,

Wherein, the optical splitter module box is fixed on the box and sealed with the box through the second sealing ring.
The optical fiber cable distribution box according to claim 9, wherein the box body is provided with a third fixing position, the box body of the optical splitter module box is provided with a fixing structure, and the optical splitter module box The box is fixed to the third fixing position through the fixing structure, thereby being fixed to the box body.
The optical fiber cable distribution box according to claim 9, wherein a fiber splicing tray is provided in the box, and the fiber splicing tray is configured to connect the output end of the incoming optical cable and the input end of the optical splitter.
The optical fiber cable distribution box according to claim 11, wherein the box is further provided with an optical cable introduction port for introducing the introduction optical cable.
The optical fiber cable distribution box according to claim 12, wherein the optical cable introduction port and the optical splitter module box are located on the same side of the box.
The optical cable distribution box according to claim 9, wherein the box body includes an upper box body and a lower box body, and the upper box body and the lower box body are detachably connected.
The optical fiber cable distribution box according to claim 14, wherein the box body is provided with a mounting hole for installing the optical splitter module box, and the hole wall of the mounting hole includes two parts, and the two parts The two parts are respectively located in the upper box and the lower box.