MPO to mt adapter

Abstract

This utility model discloses an MPO to MT adapter, relating to the field of optical fiber communication technology. The MPO to MT adapter includes a housing and an insert. The housing has MT and MPO sockets at opposite ends, respectively, with the MT sockets communicating with the MPO sockets. An inner wall of the MT socket has a notch connecting it to the external space. An inner wall of the MT socket adjacent to the notch has a slot extending along the direction from the notch to the MT socket. The insert engages with the inner wall of the slot and partially protrudes from the slot to confine the MT ferrule within the MT socket. The insert is configured to enter or exit the slot from the notch. The mechanical confinement of the insert ensures more stable and reliable optical performance of the adapter. The insert can be easily removed and inserted with simple plugging and unplugging actions, improving the ease of installation and removal when installing the adapter and MT ferrule. Therefore, the MPO to MT adapter of this utility model has stable optical performance, high tensile strength, and is easy to operate.

Description

Technical Field

[0001] This utility model relates to the field of optical fiber communication technology, and in particular to an MPO to MT adapter. Background Technology

[0002] MT (Mechanical Transfer) ferrules are mechanical adapters used in multi-fiber optic connectors. They utilize high-precision polymer or ceramic materials and employ a micro-aperture array to accommodate multiple fibers. A mechanical guiding structure ensures simultaneous alignment of multiple channels, guaranteeing low-loss transmission of optical signals between fibers. They offer numerous advantages, including high connection density, stable and reliable performance, compact size, ease of operation, and convenient cabling management, leading to their increasing use in high-density applications. MPO (Multi-fiber Push-On) connectors are multi-fiber push-in connectors. Their core consists of an MT ferrule, a housing, and guide pins. They can connect multiple fibers simultaneously within a single connector, supporting high-density cabling and multi-fiber parallel transmission. They are widely used in data centers, high-speed optical modules, and other scenarios. In certain applications of fiber optic communication technology, MPO fiber optic connectors need to directly interface with MT ferrules; therefore, an MPO to MT adapter is required.

[0003] However, some existing MPO to MT adapters typically use elastic clips or screws or other fasteners, along with a cap and base, to lock the MT ferrule to the adapter. When using elastic clips, the clamping force is insufficient, leading to unstable optical performance after the adapter and connector are connected. Furthermore, the adapter and MT ferrule have poor tensile strength, and the locking mechanism, under long-term stress, poses a risk of breakage due to material fatigue. When using screws or other fasteners with a cap and base for locking, disassembly requires tools such as screwdrivers, which is cumbersome, inefficient, and prone to damage to the screw holes after repeated use, resulting in stripped threads and a short service life. Utility Model Content

[0004] The main purpose of this invention is to provide an MPO to MT adapter, which aims to improve the stability of optical performance, tensile strength, and ease of installation and removal when the adapter is installed with an MT ferrule.

[0005] To achieve the above objectives, the present invention proposes an MPO to MT adapter comprising a housing and an insert. The housing has an MT socket and an MPO socket at opposite ends, respectively. The MT socket communicates with the MPO socket. An inner wall of the MT socket has a notch connecting the MT socket to the external space. An inner wall of the MT socket adjacent to the notch has a slot extending along the direction from the notch to the MT socket. The insert is inserted into the inner wall of the slot and partially protrudes from the slot to confine the MT insert within the MT socket. The insert is configured to enter or exit the slot from the notch.

[0006] In one embodiment, the inner wall of the notch forms a first mating portion, and the insert has a second mating portion; the first mating portion and the second mating portion are mortised and tenoned together.

[0007] In one embodiment, one of the first mating part and the second mating part is a dovetail tenon, and the other is a dovetail groove.

[0008] In one embodiment, the two inner sidewalls of the MT socket adjacent to the notch are respectively provided with a slot; the insert is U-shaped and includes two insertion parts and a connecting part connecting the two insertion parts, the two insertion parts are respectively inserted into the inner wall of one of the slots and partially protrude from the slot.

[0009] In one embodiment, the insert is an elastic structure, a snap-fit ​​protrusion is formed on the side wall of the insert portion, a snap-fit ​​hole is formed on the bottom wall of the slot, and the snap-fit ​​protrusion snaps into the inner wall of the snap-fit ​​hole.

[0010] In one embodiment, a first guide surface is formed on the side of the snap-fit ​​protrusion facing away from the notch, and a limiting surface is formed on the side of the snap-fit ​​protrusion facing the notch; the limiting surface engages with the inner wall of the snap-fit ​​hole, and the first guide surface is used to guide the snap-fit ​​protrusion to slide into the slot.

[0011] In one embodiment, the end of the insert that is inserted into the slot has a contraction portion, which gradually contracts along the direction from the notch to the MT socket to form a second guide surface, which is used to guide the insert into the slot.

[0012] In one embodiment, the notch gradually narrows along the direction from the notch to the MT socket to form a third guide surface, the third guide surface being used to guide the insert into the slot.

[0013] In one embodiment, a retaining hole is formed on an inner sidewall of the MT socket opposite to the notch, the retaining hole is in communication with the slot, and the insert is inserted into the inner wall of the retaining hole.

[0014] In one embodiment, a stop step is formed in the MT socket, the stop step being used to abut against the MT insert.

[0015] The MPO to MT adapter proposed in this utility model includes a housing and an insert. The housing has an MT socket and an MPO socket at opposite ends, respectively. The MT socket and the MPO socket are connected. An inner sidewall of the MT socket has a notch that connects the MT socket to the external space. The inner sidewall of the MT socket adjacent to the notch has a slot extending in the direction from the notch to the MT socket. The insert is inserted into the inner wall of the slot and partially protrudes from the slot to confine the MT insert within the MT socket. The insert is configured to enter or exit the slot from the notch. When connecting to the MT ferrule, first remove the insert from the slot. Then, insert the MT ferrule into the MT socket until it is positioned between the slot and the MPO socket. Next, insert the insert into the slot. Because the insert protrudes from the slot, the ferrule is positioned between the protruding portion of the insert and the MPO socket, meaning the MT ferrule is confined within the MT socket. This mechanical confinement of the insert ensures more stable and reliable optical performance of the adapter and improves the tensile strength of the MPO to MT adapter, making it less likely for the MT ferrule to detach from the adapter under external force. Furthermore, the insert can be easily removed and inserted with a simple plug-and-play action, which is simpler and more convenient than screw fixing and requires no tools. Therefore, the MPO to MT adapter of this invention has stable optical performance, high tensile strength, and is easy to operate. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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 the structures shown in these drawings without creative effort.

[0017] Figure 1 Exploded view of the MPO to MT adapter and MT ferrule provided by this utility model;

[0018] Figure 2 for Figure 1 Top view of the MPO to MT adapter;

[0019] Figure 3 for Figure 2Cross-sectional view along line A-A';

[0020] Figure 4 for Figure 2 A sectional view along line B-B' in the middle;

[0021] Figure 5 for Figure 1 Side view of the MPO to MT adapter;

[0022] Figure 6 for Figure 5 Cross-sectional view along line C-C';

[0023] Figure 7 for Figure 1 Exploded view of the MPO to MT adapter;

[0024] Figure 8 for Figure 7 Schematic diagram of the insert;

[0025] Figure 9 for Figure 7 A schematic diagram of the middle shell structure.

[0026] Explanation of icon numbers:

[0027] 100. MPO to MT adapter;

[0028] 1. Housing; 1a. MT socket; 1b. MPO socket; 1c. Notch; 1d. Slot; 1f. Snap-fit ​​hole; 1g. Anti-reverse hole; 11. Dovetail tenon; 12. Third guide surface; 13. Top step;

[0029] 2. Insert; 21. Insertion part; 211. Snap-fit ​​protrusion; 2111. First guide surface; 2112. Limiting surface; 212. Retraction part; 2121. Second guide surface; 22. Connecting part; 22a. Dovetail groove;

[0030] 200, MT ferrule.

[0031] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0033] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0034] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0035] This utility model proposes an MPO to MT adapter 100.

[0036] Please see Figure 1 , Figure 4 and Figure 6 In one embodiment of this utility model, the MPO to MT adapter 100 proposed by this utility model includes a housing 1 and an insert 2. The housing 1 has an MT socket 1a and an MPO socket 1b at opposite ends, respectively. The MT socket 1a and the MPO socket 1b are connected. An inner sidewall of the MT socket 1a has a notch 1c, which connects the MT socket 1a to the external space. The inner sidewall of the MT socket 1a adjacent to the notch 1c has a slot 1d extending in the direction from the notch 1c to the MT socket 1a. The insert 2 is inserted into the inner wall of the slot 1d and partially protrudes from the slot 1d to confine the MT ferrule 200 within the MT socket 1a. The insert 2 is configured to enter or exit the slot 1d from the notch 1c.

[0037] In this embodiment, the adapter includes a housing 1 and an insert 2. The housing 1 has an MT socket 1a and an MPO socket 1b at its two ends, which are connected to each other for mating the MPO connector with the MT ferrule 200. The inner wall of the MT socket 1a of the housing 1 has a notch 1c, which connects the MT socket 1a to the external space, facilitating the insertion and removal of the insert 2. The inner wall adjacent to the notch 1c also has a slot 1d, which extends along the direction from the notch 1c to the MT socket 1a, providing an insertion path and a fixed position for the insert 2. The insert 2 is inserted into the inner wall of the slot 1d, partially protruding from the slot 1d, thereby confining the MT ferrule 200 within the MT socket 1a. The insert 2 can enter or leave the slot 1d through the notch 1c, enabling quick installation and removal of the MT ferrule 200.

[0038] The housing 1 is the main structure of the adapter, with an MT socket 1a and an MPO socket 1b at each end. These two sockets are connected to ensure smooth transmission of optical signals. The material selection for the housing 1 must balance strength and cost, typically using metal or high-strength plastic. The MT socket 1a and MPO socket 1b are the core functional areas of the adapter, used for inserting the MT ferrule 200 and the MPO connector, respectively. The size and shape of the sockets must strictly conform to relevant standards to ensure compatibility and connection stability. The side wall of the MPO socket 1b has a second elastic latch, which includes a second elastic cantilever and a second limiting protrusion. The second elastic cantilever is connected to the side wall of the MPO and extends axially along the housing 1. The second limiting protrusion is located on the side of the second elastic cantilever facing the MPO and is used to engage with the MPO connector. In order to effectively achieve the fixing and unlocking functions of the MPO connector, a second elastic buckle is provided on each of the opposite side walls of the MPO. The second elastic cantilever is connected to the side wall of the MPO and extends along the axial direction of the housing 1. The free end of the second elastic cantilever is provided with a second limiting protrusion. Since the second elastic cantilever extends along the axial direction of the housing 1, guide slopes are provided on both sides of the second limiting protrusion to facilitate disassembly. When the pulling force is large enough, the two elastic cantilever gradually opens under the guidance of the guide slopes, so that the second limiting protrusion is disengaged from the MPO connector, and the MPO connector is disengaged from the MPO. This design makes the installation and disassembly of the MPO connector more convenient and quick, reduces the risk of damage caused by improper operation, and ensures the stability and reliability of fiber optic communication. Furthermore, the housing 1, the second elastic cantilever, and the second limiting protrusion can be set as an integrally formed structure. Two spaced deformation seams are provided on one side wall of the MPO, and the second elastic cantilever is formed between the two deformation seams. By creating two expansion joints on one side wall of the MPO to form a second elastic cantilever, which becomes part of the MPO's side wall, the second elastic clip is not only concealed within the housing 1, reducing space occupation, but also facilitates wiring and installation in high-density application scenarios. Simultaneously, the one-piece molding design reduces the number of parts and assembly steps in the production process, saving materials and lowering production costs.

[0039] The notch 1c provides space for the insertion and removal of the insert 2, while the slot 1d provides space for the installation and positioning of the insert 2. The design of the notch 1c and slot 1d must ensure that the insert 2 can move in and out smoothly and that the MT ferrule 200 can be securely fixed after installation. The insert 2 is a key component of the adapter; its structural design must meet the requirements for mating with the slot 1d and be able to partially protrude from the slot 1d. Specifically, Figure 6 for Figure 5 A cross-sectional view along line C-C', from Figure 6As can be seen, part of the insert 2 is confined within the slot 1d, while the other part protrudes from the opening of the slot 1d, i.e., protrudes from the inner wall of the MT socket 1a, thus effectively limiting the MT ferrule 200 and confining it between the insert 2 and the MPO socket 1b. The material selection for the insert 2 can consider strength and wear resistance, and can be metal or high-strength plastic. The thickness of the insert 2 and the width of the slot 1d can be an interference fit or a clearance fit, utilizing the compression and friction between the insert 2 and the inner wall of the slot 1d to prevent the insert 2 from falling out. The slot 1d is located within the MT socket 1a, preventing the slot 1d from being exposed to the outside of the housing 1, thereby reducing the probability of dust and other debris entering the slot 1d, and thus preventing dust and other debris from affecting the smoothness of the insert 2 when inserted into the slot 1d.

[0040] In this embodiment, the MPO to MT adapter 100 achieves mechanical positioning of the MT ferrule 200 through the cooperation of the insert 2 and the slot 1d. Compared with the fixing method using elastic claws, the elastic claws have insufficient fixing force, and the free end of the elastic claws is usually prone to large deflection deformation. The MT ferrule is more likely to loosen or shift within the MT socket, causing deviation or deflection of the originally aligned optical path, thus leading to unstable optical performance. In this embodiment, when the MT ferrule 200 is inserted into the MT socket 1a, the protruding part of the insert 2 directly abuts against the end face of the MT ferrule 200, making the MT ferrule tightly fitted with the inner wall of the MT socket 1a, reducing the loosening and rotation of the MT ferrule 200. Therefore, the technical solution of this embodiment significantly improves the stability and tensile strength of the optical performance after the MPO to MT adapter 100 and the MT ferrule 200 are connected. At the same time, the design of the insert 2 allows for quick installation and removal through simple plugging and unplugging actions, without the need for tools, improving the efficiency of installation and removal. This design not only solves the problem of insufficient tensile strength of existing adapters, but also improves the convenience of disassembly and assembly, and extends the service life of the adapter.

[0041] Further, please refer to Figures 7 to 9 In one embodiment of the present invention, the inner wall of the notch 1c forms a first mating part, and the insert 2 has a second mating part; the first mating part and the second mating part are mortised and tenoned together.

[0042] In this embodiment, a first mating portion is designed on the inner wall of the side of the notch 1c facing away from the MPO socket 1b, and a second mating portion is provided on the side of the insert 2 facing the MPO socket 1b. Optionally, one of the first and second mating portions can be a T-shaped groove, and the other can be a T-shaped protrusion. Optionally, one of the first and second mating portions can be an L-shaped groove, and the other can be an L-shaped protrusion. Further, one of the first and second mating portions can be a disc-shaped groove, and the other can be a disc-shaped protrusion. The above are merely exemplary examples provided by this utility model and should not be considered as limiting the technical solution of this utility model. Taking the example of a T-shaped groove on the side wall of the insert 2 facing the MPO socket 1b and a T-shaped protrusion on the side wall of the notch 1c facing away from the MPO socket 1b, as the insert 2 gradually enters the slot 1d from the notch 1c, the T-shaped protrusion and the T-shaped groove are kept aligned. Therefore, as the insert 2 is inserted, the T-shaped protrusion and the T-shaped groove gradually fit together, forming a tenon-and-mortise connection. This tenon-and-mortise connection further enhances the connection stability between the insert 2 and the housing 1. The tight fit of the tenon-and-mortise connection not only improves the positioning accuracy of the insert 2 in the slot 1d, but also enhances its tensile and torsional resistance. That is, through the tenon-and-mortise connection, the position of the insert 2 in the slot 1d is more stable, and it can better withstand external forces, thereby further improving the reliability of the connection between the adapter and the MT ferrule 200.

[0043] Furthermore, the mortise and tenon connection design also features a self-locking function. When the insert 2 is fully inserted into the slot 1d, the tight fit of the mortise and tenon connection prevents the insert 2 from accidentally slipping out under external force, thus ensuring the stable fixation of the MT insert 200 within the adapter. This design not only improves the adapter's tensile strength but also maintains ease of installation and removal, as the installation and removal of the insert 2 can still be completed with a simple push-pull action, without the need for additional fasteners or tools.

[0044] Further, please refer to Figure 2 and Figure 7 In one embodiment of the present invention, one of the first mating part and the second mating part is a dovetail tenon 11, and the other is a dovetail groove 22a.

[0045] In this embodiment, a dovetail tenon 11 is designed on the inner wall of the side of the notch 1c facing away from the MPO socket 1b, and a dovetail groove 22a is provided on the side of the insert 2 facing the MPO socket 1b. When the insert 2 gradually enters the slot 1d from the notch 1c, the dovetail tenon 11 and the dovetail groove 22a are kept aligned with each other. As the insert 2 is inserted, the dovetail tenon 11 and the dovetail groove 22a gradually fit together to form a mortise and tenon connection. The fit between the dovetail tenon 11 and the dovetail groove 22a in this embodiment has unique mechanical advantages. The beveled design of the dovetail shape allows the tenon to achieve a tighter fit through the compression of the bevel after being inserted into the slot. This structure performs well under tensile and shear forces, and can significantly improve the connection strength between the insert 2 and the housing 1. Compared with T-shaped or L-shaped mortise and tenon structures, the dovetail tenon 11 structure is superior in tensile and torsional resistance, further enhancing the reliability of the connection between the adapter and the MT ferrule 200. In addition, the beveled design of the dovetail tenon 11 not only enhances the connection strength but also provides a better self-locking function. When the insert 2 is fully inserted into the slot 1d, the inner walls of the dovetail tenon 11 and the dovetail groove 22a press against each other and fit tightly, effectively preventing the insert 2 from accidentally slipping out under external force. This self-locking performance ensures the stable fixation of the MT ferrule 200 within the adapter, preventing loosening or detachment even during frequent operation in high-density wiring environments.

[0046] By employing a mortise and tenon joint (dovetail tenon 11 and dovetail groove 22a), this embodiment not only further improves the tensile strength and stability of the connection between the adapter and the MT ferrule 200, but also enhances the self-locking performance and positioning accuracy. This design makes the adapter more reliable and efficient in high-density fiber optic communication scenarios, effectively meeting the operational needs of complex environments and ensuring the stability and reliability of fiber optic connections.

[0047] Further, please refer to Figures 6 to 8 In one embodiment of the present invention, the two inner sidewalls of the MT socket 1a adjacent to the notch 1c are respectively provided with a slot 1d; the insert 2 is arranged in the shape of a c, and the insert 2 includes two insertion parts 21 and a connecting part 22 connecting the two insertion parts 21. The two insertion parts 21 are respectively inserted into the inner wall of a slot 1d and partially protrude from the slot 1d.

[0048] In this embodiment, each of the two inner sidewalls adjacent to the notch 1c of the MT socket 1a is provided with a slot 1d, forming a symmetrical double-slot 1d structure. The insert 2 is U-shaped and includes two insertion parts 21 and a connecting part 22 connecting the two insertion parts 21. The two insertion parts 21 are respectively inserted into the inner walls of the two slots 1d and partially protrude from the slots 1d. This design allows the insert 2 to limit the MT core 200 from both sides, making the tensile force provided by the mechanical limit symmetrical when under tension. Compared with single-sided limit, this double-sided limit structure can more effectively prevent the MT core 200 from shaking and shifting within the adapter, significantly improving the stability of the connection. Understandably, the two insertion parts 21 of the insert 2 protrude from the two slots 1d, forming a double limit. This double limit structure can better withstand external forces, further improving the tensile strength of the connection between the adapter and the MT core 200. Even with frequent operation in a high-density wiring environment, the MT core 200 is not easily detached from the adapter. The U-shaped design of the insert 2 makes the installation and disassembly process more intuitive and convenient. Users can simply push or pull the entire insert 2 into the notch 1c to complete the installation of the two inserts 21, without the need for additional tools or complicated steps. This design not only improves installation and disassembly efficiency but also reduces operational difficulty.

[0049] In this embodiment, a dovetail groove 22a is provided on the connecting part 22. Specifically, the connecting part 22 is bent to form the dovetail groove 22a. This is a preferred embodiment of the present invention, which can reduce the thickness of the insert 2 and reduce the amount of material and weight of the insert 2, thereby reducing costs and facilitating the miniaturization design of the adapter. It should be understood that this is only a preferred embodiment of the present invention and should not be regarded as a limitation on the technical solution of the present invention. The dovetail groove 22a can also be provided by means of excavation, cutting, etc.

[0050] In summary, by setting slots 1d on both sides of the MT socket 1a and using the C-shaped insert 2, this embodiment not only further improves the tensile strength and stability of the connection between the adapter and the MT socket 200, but also makes the installation and disassembly process simple and convenient.

[0051] Further, please refer to Figure 7 and 8 In one embodiment of the present invention, the insert 2 is an elastic structure, a snap-fit ​​protrusion 211 is formed on the side wall of the insert portion 21, a snap-fit ​​hole 1f is formed on the bottom wall of the slot 1d, and the snap-fit ​​protrusion 211 snaps into the inner wall of the snap-fit ​​hole 1f.

[0052] In this embodiment, the insert 2 is designed as a flexible structure to enable more flexible installation and removal. The side wall of the insertion part 21 has a snap-fit ​​protrusion 211, and the bottom wall of the slot 1d has a matching snap-fit ​​hole 1f. When the insert 2 is inserted into the slot 1d, the snap-fit ​​protrusion 211 engages with the inner wall of the snap-fit ​​hole 1f, thereby firmly fixing the insert 2 within the slot 1d. Furthermore, in addition to providing a stable connection through this flexible snap-fit ​​structure, the snap-fit ​​hole 1f can be configured to penetrate the housing 1 to communicate with the external space, allowing the insert 2 to be easily removed from the slot 1d when needed. That is, a fingernail or a screwdriver can be inserted directly into the snap-fit ​​hole 1f from the outer wall of the housing 1, pushing the snap-fit ​​protrusion 211 out of the snap-fit ​​hole 1f to release the engagement between the snap-fit ​​protrusion 211 and the inner wall of the snap-fit ​​hole 1f, thereby allowing the insert 2 to be removed from the notch 1c.

[0053] This embodiment provides stable connection performance through the engagement of the snap-fit ​​protrusion 211 and the snap-fit ​​hole 1f. When the insert 2 is inserted into the slot 1d, the snap-fit ​​protrusion 211 engages tightly with the inner wall of the snap-fit ​​hole 1f, ensuring that the insert 2 is firmly positioned within the slot 1d and will not loosen or fall off due to external forces. This stable connection performance further improves the reliability of the connection between the adapter and the MT ferrule 200.

[0054] Further, please refer to Figure 7 and Figure 8 In one embodiment of the present invention, a first guide surface 2111 is formed on the side of the snap-fit ​​protrusion 211 facing away from the notch 1c, and a limiting surface 2112 is formed on the side of the snap-fit ​​protrusion 211 facing the notch 1c; the limiting surface 2112 engages with the inner wall of the snap-fit ​​hole 1f, and the first guide surface 2111 is used to guide the snap-fit ​​protrusion 211 to slide into the slot 1d.

[0055] In this embodiment, to prevent the snap-fit ​​protrusion 211 from reducing the smoothness of the insertion of the insert 2 into the slot 1d, a first guide surface 2111 is designed on the side of the snap-fit ​​protrusion 211 facing away from the notch 1c. This guide surface is a slope or an arc surface, used to guide the snap-fit ​​protrusion 211 to slide smoothly into the snap-fit ​​hole 1f when the insert 2 is inserted into the slot 1d. A limiting surface 2112 is designed on the side of the snap-fit ​​protrusion 211 facing the notch 1c. This limiting surface 2112 is a plane perpendicular to the slot 1d and parallel to the inner wall of the snap-fit ​​hole 1f, used to tightly snap with the inner wall of the snap-fit ​​hole 1f, thereby providing a stable limiting effect after the insert 2 is fully inserted.

[0056] This embodiment utilizes a first guide surface 2111 to facilitate smoother insertion of the insert 2 into the slot 1d. As the insert 2 gradually enters the slot 1d, the first guide surface 2111 guides the snap-fit ​​protrusion 211 to slide smoothly into the snap-fit ​​hole 1f, reducing resistance and jamming during insertion. This design not only improves the installation efficiency of the insert 2 but also reduces assembly errors caused by insertion difficulties. This embodiment also ensures the stable fixation of the insert 2 within the slot 1d by a limiting surface 2112. After the insert 2 is fully inserted, the limiting surface 2112 tightly engages with the inner wall of the snap-fit ​​hole 1f, forming a robust limiting structure. This limiting structure effectively prevents the insert 2 from accidentally slipping out under external force, ensuring the reliability of the connection between the adapter and the MT ferrule 200.

[0057] Further, please refer to Figure 8 In one embodiment of the present invention, a contraction portion 212 is formed at one end of the insert 2 that is inserted into the slot 1d. The contraction portion 212 gradually contracts along the direction from the notch 1c to the MT insertion hole 1a to form a second guide surface 2121. The second guide surface 2121 is used to guide the insert 2 to slide into the slot 1d.

[0058] In this embodiment, the insertion end of the insert 2 is designed with a contraction portion 212, which gradually contracts along the direction from the notch 1c to the MT socket 1a, forming a second guide surface 2121. The second guide surface 2121 is a sloped or arc-shaped surface, and its function is to provide guidance when the insert 2 enters the slot 1d, so that the insert 2 can slide more smoothly into the slot 1d, reducing resistance and jamming during the insertion process. This design not only improves the installation efficiency of the insert 2, but also reduces assembly errors caused by insertion difficulties. This design significantly reduces the difficulty of operation, and is especially suitable for frequent operations in high-density fiber optic communication scenarios.

[0059] Further, please refer to Figure 7 and Figure 9 In one embodiment of the present invention, the notch 1c gradually contracts along the direction from the notch 1c to the MT insertion hole 1a to form a third guide surface 12, the third guide surface 12 being used to guide the insert 2 to slide into the slot 1d.

[0060] In this embodiment, to further improve the smoothness of insert 2 insertion, the design of notch 1c is optimized so that it gradually tapers along the direction from notch 1c to MT socket 1a to form a third guide surface 12. The third guide surface 12 is a sloped or curved surface, which guides insert 2 as it enters slot 1d from notch 1c, allowing insert 2 to slide more smoothly into slot 1d. It is understood that part or all of the inner wall of notch 1c is set as a sloped or curved surface. This design further optimizes the fit between insert 2 and slot 1d, improving the installation efficiency of insert 2. In other words, the design of the third guide surface 12 makes the installation process of insert 2 more intuitive and convenient, allowing users to complete the installation of insert 2 without complex alignment operations. This design significantly improves the user experience and reduces the difficulty of operation, making it particularly suitable for frequent operations in high-density fiber optic communication scenarios.

[0061] Further, please refer to Figure 3 , Figure 4 and Figure 7 In one embodiment of the present invention, a retaining hole 1g is formed on an inner sidewall of the MT socket 1a opposite to the notch 1c. The retaining hole 1g communicates with the slot 1d, and the insert 2 is inserted into the inner wall of the retaining hole 1g.

[0062] In this embodiment, a retaining hole 1g is designed on the inner sidewall of the MT socket 1a opposite to the notch 1c. The retaining hole 1g communicates with the slot 1d, and the shape of the retaining hole 1g is adapted to the shape of the end of the insert 2 away from the notch 1c. In this embodiment, both the retaining hole 1g and the end of the insert 2 away from the notch 1c are rectangular, and the size of the retaining hole 1g is adapted to the insert 2 to ensure that the insert 2 can be inserted. After the insert 2 is inserted into the slot 1d, a portion of it can be further inserted into the retaining hole 1g, forming a mating fit with the inner wall of the retaining hole 1g. This design further enhances the tensile strength of the connection between the adapter and the MT socket 200 by increasing the contact area and mechanical snap-fit ​​strength between the insert 2 and the housing 1.

[0063] Further, please refer to Figure 3 , Figure 4 and Figure 6 In one embodiment of the present invention, a stop step 13 is formed in the MT socket 1a, and the stop step 13 is used to abut against the MT plug 200.

[0064] In this embodiment, a stop step 13 is designed on the inner wall of the MT socket 1a. The stop step 13 is located at an appropriate position in the MT socket 1a and is used to abut against the front end face of the MT ferrule 200 or other limiting parts, such as... Figure 3 and Figure 6As shown, the MT ferrule 200 has a circumferential boss. In this embodiment, a limiting space is formed between the insert 2 and the stop step 13, and the circumferential boss of the ferrule is locked within this limiting space. When the MT ferrule 200 is inserted into the MT socket 1a, the stop step 13 can prevent the MT ferrule 200 from being over-inserted, ensuring that the MT ferrule 200 is inserted into the correct position. At the same time, the limiting effect of the insert 2 in the slot 1d and the abutting effect of the stop step 13 work together to further prevent the MT ferrule 200 from shaking in the adapter axial direction.

[0065] In this embodiment, the dual limiting effect of the top step 13 and the insert 2 ensures that the MT ferrule 200 is more stable within the adapter, better able to withstand external forces, thereby further improving the reliability of the connection between the adapter and the MT ferrule 200. This design not only improves connection stability but also reduces optical signal transmission loss caused by ferrule movement, effectively meeting the operational needs of complex environments and ensuring the stability and reliability of the fiber optic connection.

[0066] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An MPO-to- MT adapter, comprising: The MPO to MT adapter includes: The housing (1) has an MT socket (1a) and an MPO socket (1b) at opposite ends, respectively. The MT socket (1a) and the MPO socket (1b) are connected. An inner sidewall of the MT socket (1a) is provided with a notch (1c), which connects the MT socket (1a) to the external space. The inner sidewall of the MT socket (1a) adjacent to the notch (1c) is provided with a slot (1d) extending along the direction from the notch (1c) to the MT socket (1a). An insert (2) is inserted into the inner wall of the slot (1d) and partially protrudes from the slot (1d) to confine the MT ferrule within the MT jack (1a), and the insert (2) is configured to enter or exit the slot (1d) from the notch (1c).

2. The MPO-to- MT adapter of claim 1, wherein, The inner wall of the notch (1c) forms a first mating part, and the insert (2) has a second mating part formed thereon; The first mating part and the second mating part are connected by a tenon and mortise joint.

3. The MPO-to- MT adapter of claim 2, wherein, Of the first mating part and the second mating part, one is a dovetail tenon (11) and the other is a dovetail groove (22a).

4. The MPO-to- MT adapter of claim 1, wherein, The MT socket (1a) has a slot (1d) on each of its two inner sidewalls adjacent to the notch (1c); The insert (2) is U-shaped and includes two insertion parts (21) and a connecting part (22) connecting the two insertion parts (21). The two insertion parts (21) are respectively inserted into the inner wall of a slot (1d) and partially protrude from the slot (1d).

5. The MPO-to- MT adapter of claim 4, wherein, The insert (2) is an elastic structure. A snap-fit ​​protrusion (211) is formed on the side wall of the insert part (21), and a snap-fit ​​hole (1f) is formed on the bottom wall of the slot (1d). The snap-fit ​​protrusion (211) snaps into the inner wall of the snap-fit ​​hole (1f).

6. The MPO-to- MT adapter of claim 5, wherein, A first guide surface (2111) is formed on the side of the snap-fit ​​protrusion (211) facing away from the notch (1c), and a limiting surface (2112) is formed on the side of the snap-fit ​​protrusion (211) facing the notch (1c). The limiting surface (2112) engages with the inner wall of the snap-fit ​​hole (1f), and the first guide surface (2111) is used to guide the snap-fit ​​protrusion (211) to slide into the slot (1d).

7. The MPO-to- MT adapter of any of claims 1 to 6, wherein, The insert (2) has a contraction portion (212) at one end that is inserted into the slot (1d). The contraction portion (212) gradually contracts along the notch (1c) to the MT socket (1a) to form a second guide surface (2121). The second guide surface (2121) is used to guide the insert (2) to slide into the slot (1d).

8. The MPO-to- MT adapter of any of claims 1 to 6, wherein, The notch (1c) gradually narrows along the direction from the notch (1c) to the MT socket (1a) to form a third guide surface (12), which is used to guide the insert (2) to slide into the slot (1d).

9. The MPO-to- MT adapter of any of claims 1 to 6, wherein, A retaining hole (1g) is formed on an inner sidewall of the MT socket (1a) opposite to the notch (1c). The retaining hole (1g) communicates with the slot (1d), and the insert (2) is inserted into the inner wall of the retaining hole (1g).

10. The MPO-to- MT adapter of any of claims 1 to 6, wherein, A stop step (13) is formed inside the MT socket (1a), and the stop step (13) is used to abut against the MT core.

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