Optical splitter plug-in cassette
Patent Information
- Application Number
- CN202521954315.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-11
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-09-11
AI Technical Summary
Existing plug-in optical splitters suffer from inconvenient maintenance and structural instability, are prone to optical loss due to drops, and are difficult to manage and protect optical fibers.
An optical splitter insert box was designed, comprising an optical splitter module, an insert box body, an insert box cover, optical splitter fixing components, and optical fibers. The optical fibers are fixed by the optical splitter fixing components and slot openings. A snap-fit structure is adopted to achieve stable fixation of the optical splitter and protection of the optical fibers. The box body and the box cover are connected by a snap-fit, which is convenient for disassembly and assembly.
This achieves structural stability and ease of maintenance for the optical splitter insert box, reduces the risk of fiber damage, and improves production efficiency and assembly convenience.
Smart Images
Figure CN224934197U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of passive optical device technology, and in particular to an optical splitter insert box. Background Technology
[0002] Plug-in optical splitters are a common passive optical device in fiber optic networks, primarily used for splitting and distributing optical signals. Their modular design facilitates installation, maintenance, and flexible configuration, making them widely applicable in various fiber optic communication scenarios. For example, in fiber-to-the-home (FTTH) passive optical networks, plug-in optical splitters distribute backbone fiber signals to multiple user terminals; within data centers or enterprise LANs, they distribute optical signals to different cabinets or terminal equipment; in fiber optic junction boxes and distribution boxes, they enable centralized splitting and patch cord management of optical cables; and in fiber optic connections for 5G base stations, splitters are used for signal distribution and aggregation.
[0003] Plug-in optical splitters must not only meet the performance requirements for insertion and return losses, but also withstand drop damage; otherwise, the product is prone to optical interruption in the event of a drop. During the manufacturing process, the arrangement and protection of optical fibers are also crucial, as they not only affect production efficiency but also increase the risk of fiber damage. If any abnormalities occur during product use, the product cover should be opened for troubleshooting.
[0004] To address the aforementioned issues, there is a need for an optical splitter insert box that is easy to maintain and has a stable structure. Summary of the Invention
[0005] This utility model relates to an optical splitter insert box, which features convenient maintenance and stable structure. The device includes an optical splitter module, an insert box body, an insert box cover, an optical splitter fixing component, at least two optical fibers, and slot openings. The insert box and the insert box cover form an accommodating space, and the optical splitter module, the optical splitter fixing component and at least two optical fibers are located inside the accommodating space; When the insert box body and the insert box cover come into contact, the insert box body and the insert box cover can form a sealed space; The optical splitter module is located at the bottom edge of the accommodating space, and the optical splitter mounting bracket is used to fix the optical splitter module. At least two optical fibers are connected at one end to an optical splitter module and at the other end to a slot opening. The optical splitter module and the slot opening are used to limit the movement of the at least two optical fibers.
[0006] In an optional embodiment, the slot opening is located on the opposite side of the optical splitter module.
[0007] In an optional embodiment, the optical splitter cassette further includes an optical fiber fixing component; The fiber optic fastener is located within the accommodating space; Fiber optic fasteners are used to secure optical fibers between optical splitter modules and slot openings.
[0008] In an optional embodiment, the fiber optic fastener is implemented as a snap-on fiber optic fastener.
[0009] In an optional embodiment, the insert housing has at least two lid latches; The lid clip is used to securely connect the insert box body and the insert box lid.
[0010] In an optional embodiment, the optical splitter fixture is implemented as a snap-on optical splitter fixture.
[0011] In an optional embodiment, the insert housing also has at least one latch; The latch is used to lock the insert box body.
[0012] In an optional embodiment, the optical splitter cassette further includes adapters; the number of adapters corresponds to the number of slot openings. The adapter is located inside the slot opening; The adapter is used to accommodate one end of the optical fiber.
[0013] In an optional embodiment, the optical splitter fixture is configured with a limiting element; The bottom of the insert box has an insertion hole corresponding to the limiting component.
[0014] In an optional embodiment, the fiber optic fastener is a housing; The fiber optic fastener contains soft foam.
[0015] The technical effects included in the various embodiments of this utility model include at least the following: By designing optical splitter fixing components and slot openings inside the optical splitter insert box, the optical fibers passing through the box are organized and fixed using these components and slot openings. This results in a reasonable internal structure for the optical splitter insert box, allowing the optical splitter module to be fixed inside the box and ensuring overall structural stability. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1This illustration shows a schematic diagram of the internal structure of an optical splitter insert cassette provided in an exemplary embodiment of this application.
[0018] Figure 2 This illustration shows a schematic diagram of the connection structure between a insert box cover and an insert box body provided in an exemplary embodiment of this application.
[0019] Figure 3 A schematic diagram of the structure of an optical fiber fastener provided in an exemplary embodiment of this application is shown.
[0020] Figure 4 This illustration shows a schematic diagram of the connection relationship between a insert box body and an insert box cover provided in an exemplary embodiment of this application.
[0021] The attached icons are numbered as follows: 1-Optical splitter module; 2-Plug-in housing; 3-Plug-in housing cover; 4-Optical splitter fixing component; 5-Fiber optic cable; 6-Slot opening; 7-Fiber optic cable fixing component; 8-Housing cover buckle; 9-Lock; 10-Adapter; 11-Limiting component; 12-Soft foam. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0023] Figure 1 This illustration shows a schematic diagram of the internal structure of an optical splitter insert cassette provided in an exemplary embodiment of this application; Figure 2 This illustration shows a schematic diagram of the connection structure between a insert box cover and an insert box body according to an exemplary embodiment of this application; Figure 3 This invention provides a schematic diagram of the structure of an optical fiber fastener according to an exemplary embodiment of the present application. Figure 4 This diagram illustrates the connection relationship between a insert holder and an insert holder cover according to an exemplary embodiment of this application. Please refer to... Figures 1 to 4The optical splitter insert cassette includes an optical splitter module 1, an insert cassette body 2, an insert cassette cover 3, an optical splitter fixing component 4, at least two optical fibers 5, and a slot opening 6. The insert cassette body 2 and the insert cassette cover 3 form an accommodating space, and the optical splitter module 1, the optical splitter fixing component 4, and the at least two optical fibers 5 are located inside the accommodating space. When the insert cassette body 2 and the insert cassette cover 3 are in contact, they can form a sealed space. The optical splitter module 1 is located at the bottom edge of the accommodating space, and the optical splitter fixing component 4 is used to fix the optical splitter module 1. One end of the at least two optical fibers 5 is connected to the optical splitter module 1, and the other end of the at least two optical fibers 5 is connected to the slot opening 6. The optical splitter module 1 and the slot opening 6 are used to limit the position of the at least two optical fibers 5.
[0024] In this embodiment, the optical splitter cassette is used to secure the optical splitter and the optical fiber 5 extending from it. Therefore, an optical splitter fixing member 4 is provided inside the cassette to secure the optical splitter, and the slot opening 6 and the starting and ending positions of the optical fiber 5 are determined by the slot opening 6. In this embodiment, the optical fiber 5 is transferred to an external mechanism within the slot opening 6. Optionally, the slot opening 6 can be covered with a baffle when not in use to maintain dust prevention and aesthetics.
[0025] Optionally, in this embodiment, the insert box 2 and the insert box cover 3 are used to form a closed space to isolate the internal optical splitter module 1 from the outside.
[0026] In this embodiment, the optical splitter fixing member 4 is used to fix the optical splitter module 1 insert housing 2, and the optical splitter fixing member 4 is movably connected to the insert housing 2. Optionally, the optical splitter fixing member 4 can be a snap-on type fixing member or an adhesive type fixing member, and this application does not limit the specific form of the optical splitter fixing member 4.
[0027] In this embodiment, the number of optical fibers 5 is at least two; in one example, the specific number of optical fibers 5 is four. One end of each optical fiber 5 is connected to the optical splitter module 1, and the other end is connected to the slot opening 6. Optionally, the end of each optical fiber 5 is equipped with a crystal connector.
[0028] In summary, the device provided in this application, by designing the optical splitter fixing component 4 and the slot opening 6 inside the optical splitter insert box, arranges the optical fiber 5 passing through inside by using the optical splitter fixing component 4 and the slot opening 6 as fixing parts, so that the internal structure of the optical splitter insert box is reasonable, the optical splitter module 1 can be fixed inside the insert box, and the overall structure of the insert box is stable.
[0029] Next, the further specific structure of the optical splitter insert cassette provided in the embodiments of this application will be described: In an optional embodiment, please refer to Figure 1 The slot opening 6 is located on the opposite side of the optical splitter module 1.
[0030] In an optional embodiment, please refer to Figure 1 as well as Figure 4 The optical splitter insert box also includes an optical fiber fixing component 7; the optical fiber fixing component 7 is located within the accommodating space; the optical fiber fixing component 7 is used to fix the optical fiber 5 between the optical splitter module 1 and the slot opening 6.
[0031] Please refer to Figure 4 The fiber optic fastener 7 is implemented as a housing. This housing includes an opening for the fiber optic cable 5 to pass through. Inside the housing, soft foam 12 provides cushioning to prevent damage to the fiber optic cable 5 in the event of a collision. That is, in this embodiment, the fiber optic fastener 7 is a housing; the fiber optic fastener 7 contains soft foam 12.
[0032] In this case, in one example, the fiber optic fastener 7 is implemented as a snap-on fiber optic fastener 7. In an alternative embodiment, please refer to... Figure 3 The optical splitter fixing component 4 is equipped with a limiting component 11; the bottom of the insert box 2 has an insertion hole corresponding to the limiting component 11.
[0033] In an optional embodiment, please refer to Figure 2 The insert box body 2 has at least two cover latches 8; the cover latches 8 are used to securely connect the insert box body 2 and the insert box cover 3. For example... Figure 1 As shown, there are 4 lid clips.
[0034] In an optional embodiment, the optical splitter fixture 4 is implemented as a snap-on optical splitter fixture 4.
[0035] In an optional embodiment, the insert housing 2 also has at least one latch 9; the latch 9 is used to lock the insert housing 2. Optionally, the latch 9 is used to additionally configure a combination lock to further ensure the security of the insert housing.
[0036] In an optional embodiment, please refer to Figure 1 The optical splitter cassette also includes adapters 10, the number of which corresponds to the number of slot openings 6; the adapters 10 are located inside the slot openings 6; the adapters 10 are used to accommodate one end of the optical fiber 5 for connection to external components.
[0037] Next, based on the above structure, the assembly method of the optical splitter insert box will be explained: When assembling the insert box, first place the insert box body with the mounting bracket and adapter facing you. Then, insert the steel tube portion of the 1-to-4 miniature optical splitter into the optical splitter mounting bracket. During installation, align the input end of the optical splitter module with the left side and the output end with the right side, respectively, into the U-shaped slots on both sides of the optical splitter mounting bracket. After confirming that it is in place, flip down the top cover of the snap-fit miniature optical splitter mounting bracket, ensuring that the snaps are secure and not loose. The specific structure is as follows... Figure 4 As shown in the figure, the structure has a layer of cushioning soft foam inside. When the top cover is flipped down and the buckle is locked, the steel tube inside and the cushioning soft foam are interference fit, which plays a good cushioning role.
[0038] Next, align the two limiting pieces at the bottom of the snap-on fiber optic connector with the two corresponding holes at the bottom of the insert box and insert them to secure them firmly. At this point, the structure should be in the open position. Then, for smooth and aesthetically pleasing fiber routing inside the box, place the input and output ends of the miniature optical splitter together, wrapping them around the connector once each, and insert them into the snap-on fiber optic connector, as shown in the image. Figure 1 As shown in the image, the component is then closed and locked in place with a snap fastener. Inside, there is also a layer of cushioning foam to prevent the optical fiber from breaking due to impact.
[0039] Next, attach the adapter to each connector of the miniature optical splitter. Insert the input connector into the slot on the far left of the cassette, and insert the four output connectors into their corresponding slots on the right. The specific installation positions are as follows: Figure 1 As shown, the insert box has a total of 9 mounting slots: 1 input "IN" slot and 8 output slots. After all the connectors of the 1-to-4 miniature optical splitter are installed, the four remaining slots are fitted with baffles to provide an aesthetically pleasing and dust-proof effect after subsequent assembly. Figure 2 As shown in the image.
[0040] Finally, press down on the four latches on the lid, corresponding to the four clips on the insert box body, to secure them firmly in place. This completes the final assembly. The lid is injection-molded with "IN" and "1-8" numbers, corresponding to the input and output connectors of the miniature optical splitter. If rework or repair of the internal miniature optical splitter is required later, simply press inwards simultaneously. Figure 2 The buttons on both sides of the latch on the insert box body cause the claws on the lid to deform inward and disengage from the limiting point, allowing the lid to be removed. Therefore, the overall structure of this insert box not only meets the mechanical performance requirements for drop resistance but also saves assembly time for employees and reduces the difficulty of operation.
[0041] In summary, the device provided in this application, by designing optical splitter fixing components and slot openings inside the optical splitter insert box, arranges the optical fibers passing through the inside by using the optical splitter fixing components and slot openings as fixing parts, so that the internal structure of the optical splitter insert box is reasonable, the optical splitter module can be fixed inside the insert box, and the overall structure of the insert box is stable.
[0042] The device provided in this application uses a snap-fit structure with internal cushioning foam for fixing, which not only improves production efficiency but also effectively protects the optical fiber from damage.
[0043] The device provided in this application uses a snap-fit locking mechanism between the upper cover and lower body of the insert box, ensuring a secure and tight fit between them and facilitating disassembly. This snap-fit locking mechanism simplifies the manufacturing process and makes opening the device easier during engineering use.
[0044] The above are merely optional embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. An optical splitter insert box, characterized in that, The optical splitter insert box includes an optical splitter module (1), an insert box body (2), an insert box cover (3), an optical splitter fixing component (4), at least two optical fibers (5), and a slot opening (6). The insert box body (2) and the insert box cover (3) form an accommodating space, and the optical splitter module (1), the optical splitter fixing component (4) and the at least two optical fibers (5) are located inside the accommodating space. When the insert box body (2) and the insert box cover (3) come into contact, the insert box body (2) and the insert box cover (3) can form a sealed space; The optical splitter module (1) is located at the bottom edge of the accommodating space, and the optical splitter fixing member (4) is used to fix the optical splitter module (1). One end of the at least two optical fibers (5) is connected to the optical splitter module (1), and the other end of the at least two optical fibers (5) is connected to the slot opening (6). The optical splitter module (1) and the slot opening (6) are used to limit the position of the at least two optical fibers (5).
2. The optical splitter insert cassette according to claim 1, characterized in that, The slot opening (6) is located on the opposite side of the optical splitter module (1).
3. The optical splitter insert cassette according to claim 1, characterized in that, The optical splitter insert box also includes an optical fiber fixing component (7). The optical fiber fixing component (7) is located within the accommodating space; The fiber optic fastener (7) is used to fix the fiber optic cable between the optical splitter module (1) and the slot opening (6).
4. The optical splitter insert cassette according to claim 3, characterized in that, The optical fiber fastener (7) is implemented as a snap-on optical fiber fastener.
5. The optical splitter insert cassette according to claim 1, characterized in that, The insert box body has at least two lid latches (8); The cover buckle (8) is used to fix the insert box body (2) and the insert box cover (3) together.
6. The optical splitter insert cassette according to claim 1, characterized in that, The optical splitter fixture (4) is implemented as a snap-on optical splitter fixture.
7. The optical splitter insert cassette according to claim 5, characterized in that, The insert box (2) also has at least one latch (9); The latch (9) is used to lock the insert box body (2).
8. The optical splitter insert cassette according to claim 1, characterized in that, The optical splitter insert box also includes an adapter (10). The number of adapters (10) corresponds to the number of slot openings (6); The adapter (10) is located inside the slot opening (6); The adapter (10) is used to accommodate one end of the optical fiber (5).
9. The optical splitter insert cassette according to claim 6, characterized in that, The optical splitter fixing component (4) is equipped with a limiting component (11); The bottom of the insert box (2) has an insertion hole corresponding to the limiting member (11).
10. The optical splitter cassette according to claim 3, characterized in that, The optical fiber fastener (7) is a box-shaped structure; The fiber optic fastener (7) contains soft foam (12).