A compact modular optical splitter

Abstract

The utility model relates to a compact module type optical branching filter, include: box body, box cover, with box body forms accommodating cavity, accommodating cavity is used for accommodating optical device, spring screw, it sets up in one of four lateral walls of box body, LC adapter, it is installed on the box body lateral wall of spring screw place, the input port of optical device passes through LC adapter and is connected with outside, is equipped with a plurality of first optical output port on the box body, and the output port of optical device is connected equipment through a plurality of first optical output port and forms the output of optical signal, the compact module type optical branching filter of the utility model adopts full metal shell design, satisfies the installation in cabinet, is applicable to the connection between industrial optical line terminal (OLT) and terminal user nearby optical network unit (ONU), can satisfy the connection of high density optical fiber network, simple structure, and the installation mode is simple and convenient to operate, can reduce construction and engineering maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of optical splitter technology, and in particular to a compact modular optical splitter. Background Technology

[0002] Optical splitters are core passive devices in fiber optic communication networks, widely used in FTTH (Fiber to the Home), PON (Passive Optical Network), and data center optical interconnects. Their main function is to proportionally distribute input optical signals to multiple outputs. Traditional optical splitters often use standardized rectangular housing structures, resulting in relatively large dimensions (e.g., a 1×8 splitter is typically 80~100mm in length). This presents layout difficulties in space-constrained applications (such as high-density fiber optic distribution frames and compact optical modules), impacting cabling efficiency and equipment integration.

[0003] Currently, improvements in the compactness of optical splitters mainly focus on chip-level packaging or internal optical structure optimization, while the external housing design still follows traditional forms, making it difficult to further reduce the overall size. Conventional housing structures contain redundant space, failing to fully utilize the space optimized by the internal layout.

[0004] Therefore, there is an urgent need for an innovative design solution that, without changing the internal optical packaging process, optimizes the housing structure, port layout, and installation method to reduce the overall size of the optical splitter to half that of conventional products, while ensuring that the mechanical strength, heat dissipation performance, and fiber bending radius meet industry standards to meet the needs of high-density fiber optic network deployment. Utility Model Content

[0005] Therefore, the technical problem to be solved by this utility model is to overcome the problem that the internal layout of the optical splitter in the prior art is unreasonable, resulting in low space utilization and preventing the optical splitter from being further reduced in size.

[0006] To address the aforementioned technical problems, this utility model provides a compact modular optical splitter, comprising: a housing; a cover that snaps onto the housing, forming a receiving cavity with the housing, the receiving cavity being used to house optical splitting devices; a spring screw disposed on one of the four side walls of the housing; and an LC adapter mounted on the side wall of the housing where the spring screw is located. The input port of the optical splitting device is connected to the outside via the LC adapter. The housing is provided with a plurality of first optical splitting output ports, and the output ports of the optical splitting device are connected to equipment through the plurality of first optical splitting output ports to form optical signal output. This compact modular optical splitter, with its miniaturization, high integration, and easy deployment, can be embedded in high-density fiber optic distribution frames, optimizing rack space utilization, and is used for fiber optic interconnection within data centers to achieve high-density, low-loss optical signal distribution.

[0007] In one embodiment of this utility model, the box body is a rectangular box with an opening at the top.

[0008] In one embodiment of the present invention, the housing and the two side walls adjacent to the side wall where the LC adapter is installed are each provided with a first mounting hole.

[0009] In one embodiment of this utility model, a second mounting hole is provided on the side wall opposite to the first mounting hole of the box cover and the box body. Screws are provided in the first mounting hole and the second mounting hole, and the box body and the box cover are locked together by the screws.

[0010] In one embodiment of the present invention, a partition is installed inside the box, the partition is arranged parallel to the side wall on which the LC adapter is installed, the partition is provided with an adapter mounting slot, and one end of the LC adapter inside the box is disposed in the adapter mounting slot.

[0011] In one embodiment of this utility model, the lower end of the partition that contacts the box body is provided with at least one partition mounting protrusion.

[0012] In one embodiment of the present invention, the bottom plate of the box body is provided with at least one partition mounting slot, and the partition mounting protrusion is provided in the partition mounting slot for positioning the partition in the box body.

[0013] In one embodiment of this utility model, the partition is provided with a plurality of second optical splitter output ports, and the plurality of second optical splitter output ports and the plurality of first optical splitter output ports are arranged in a one-to-one correspondence.

[0014] In one embodiment of the present invention, the side wall on which the LC adapter is mounted in the housing is provided with an extension protrusion, the extension protrusion extending out of the housing, and the spring screw is mounted on the extension protrusion.

[0015] In one embodiment of this utility model, the partition mounting slot is a rectangular through hole.

[0016] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial effects:

[0017] The compact modular optical splitter described in this utility model adopts an all-metal housing design, which is suitable for rack installation. It is suitable for connection between industrial optical line terminals (OLTs) and optical network units (ONUs) near end users, and can meet the connection of high-density fiber optic networks. It is suitable for 19-inch rack installation, has a simple structure, and is easy and convenient to install and operate, which can reduce construction and engineering maintenance costs. The overall structure is compact and small in size, which reduces the space occupied by wiring and lowers costs. Attached Figure Description

[0018] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0019] Figure 1 This is a schematic diagram of the overall structure of the compact modular optical splitter in a preferred embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the internal structure of the compact modular optical splitter in a preferred embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the partition in a preferred embodiment of the present invention.

[0022] Explanation of reference numerals in the accompanying drawings: 1. Box body; 11. First mounting hole; 12. Extension protrusion; 2. Box cover; 21. Second mounting hole; 3. Spring screw; 4. LC adapter; 6. Optical splitter output port; 7. Partition mounting slot; 8. Partition; 9. Adapter mounting port; 10. Partition mounting protrusion. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0024] Reference Figure 1 , 2 As shown, the compact modular optical splitter of this utility model includes: a housing 1, which is a rectangular box with an open top; a cover 2, which is fastened to the housing 1, and the housing 1 and the cover 2 form a receiving cavity. The housing 1 is used to install devices, and the cover 2 is used to cover the housing 1. The receiving cavity is a rectangular cavity used to house the optical splitter device; a spring screw 3, which is disposed on one of the four side walls of the housing 1; an LC adapter 4, which is mounted on the side wall of the housing 1 where the spring screw 3 is located. The input port of the optical splitter device is connected to the outside through the LC adapter 4. The housing 1 is provided with a plurality of first optical splitter output ports 6, and the output ports of the optical splitter device are connected to equipment through the plurality of first optical splitter output ports 6 to form an optical signal output. The housing 1 and the cover 2 are fixed by screw mounting holes to form a receiving space. The optical splitter device is placed in the receiving space, and the main body of the optical splitter device is positioned by the bottom surface of the housing 1.

[0025] There are various types of fiber optic adapters, such as SC, FC, and LC. Among them, LC adapters are widely used due to their advantages such as smaller size, convenient insertion and removal, low insertion loss fluctuation, high compressive strength, and high installation density. Therefore, the LC adapter 4 in this patent application adopts the LC type. The LC adapter is a type of fiber optic adapter. As a fiber optic connector, the LC adapter is widely used. It can effectively connect two optical fibers to realize the transmission of optical signals.

[0026] In the above structure, the box 1 is installed and fixed in the cabinet by spring screws 3, and the compact modular optical splitter is installed by spring screws 3. The installation method is simple and the disassembly is convenient, which brings great convenience to construction and maintenance.

[0027] In the above structure, the housing 1 has first mounting holes 11 on both sidewalls adjacent to the sidewall where the LC adapter 4 is installed. The cover 2 has a second mounting hole 21 on the sidewall opposite to the sidewall where the first mounting holes 11 are installed. Screws are installed in the first mounting holes 11 and the second mounting holes 21, and the housing 1 and the cover 2 are locked together by screws. The sidewall where the LC adapter 4 is installed on the housing 1 has an extension protrusion 12 that extends out of the housing 1, and the spring screw 3 is installed on the extension protrusion 12.

[0028] Reference Figure 3 As shown, a partition 8 is installed inside the box 1. The partition 8 is arranged parallel to the side wall where the LC adapter 4 is installed. The partition 8 is provided with an adapter mounting slot 9. One end of the LC adapter 4 inside the box 1 is set in the adapter mounting slot 9.

[0029] In the above structure, the lower end of the partition 8 that contacts the housing 1 is provided with at least one partition mounting protrusion 10. The bottom plate of the housing 1 is provided with at least one partition mounting slot 7, which is a rectangular through hole. The partition mounting protrusion 10 is disposed within the partition mounting slot 7 to position the partition 8 within the housing 1. The LC adapter 4 is doubly fixedly mounted by matching the adapter mounting slot 9 on the front side of the housing 1 and the partition 8. The input connector of the optical splitter is connected to an external fiber optic connector through the LC adapter 4 to form the input of the optical signal.

[0030] In the above structure, the partition 8 is provided with a plurality of second optical splitter output ports 81, which are arranged in a one-to-one correspondence with a plurality of first optical splitter output ports 6. The output end of the optical splitter device outputs a pigtail through the first optical splitter output port 6 on the front side of the housing 1 and the second optical splitter output port 81 on the partition 8, which is connected to external equipment to form an optical signal output. The first optical splitter output port 6 and the second optical splitter output port 81 can be equipped with 1*N (N≤8) uniform or non-uniform optical splitters, supporting multi-branch (N-1) uniform beam splitting and beam splitting with arbitrary branch ratios.

[0031] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A compact modular optical splitter, characterized in that, include: Box body; A lid that snaps onto a box body, and the box body and lid together form a receiving cavity for housing an optical splitter. A spring screw is located on one of the four side walls of the housing; An LC adapter is mounted on the side wall of the housing where the spring screw is located. The input port of the optical splitter is connected to the outside through the LC adapter. The housing is provided with several first optical splitter output ports. The output port of the optical splitter is connected to the equipment through the several first optical splitter output ports to form an optical signal output.

2. The compact modular optical splitter according to claim 1, characterized in that: The box is a rectangular box with an opening at the top.

3. The compact modular optical splitter according to claim 2, characterized in that: The housing has a first mounting hole on each of the two side walls adjacent to the side wall where the LC adapter is installed.

4. The compact modular optical splitter according to claim 3, characterized in that: The box cover and the box body are provided with a second mounting hole on the side wall opposite to the first mounting hole. Screws are provided in the first mounting hole and the second mounting hole, and the box body and the box cover are locked together by screws.

5. The compact modular optical splitter according to claim 2, characterized in that: A partition is installed inside the box. The partition is parallel to the side wall where the LC adapter is installed. The partition has an adapter mounting slot. One end of the LC adapter inside the box is located in the adapter mounting slot.

6. The compact modular optical splitter according to claim 5, characterized in that: The lower end of the partition that contacts the box body is provided with at least one partition mounting protrusion.

7. The compact modular optical splitter according to claim 6, characterized in that: The bottom plate of the box body is provided with at least one partition mounting slot, and the partition mounting protrusion is provided in the partition mounting slot to position the partition in the box body.

8. The compact modular optical splitter according to claim 5 or 7, characterized in that: The partition is provided with a plurality of second optical splitter output ports, and the plurality of second optical splitter output ports are configured in a one-to-one correspondence with the plurality of first optical splitter output ports.

9. The compact modular optical splitter according to claim 2, characterized in that: The box body has an extension protrusion on the side wall where the LC adapter is installed. The extension protrusion extends out of the box body, and the spring screw is installed on the extension protrusion.

10. The compact modular optical splitter according to claim 7, characterized in that: The mounting slot for the partition is a rectangular through hole.

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