MPO insertion core connector capable of realizing multi-position cooperation through special-shaped elastic sheet structure

Abstract

The invention relates to the technical field of MPO insertion core connectors, in particular to an MPO insertion core connector capable of achieving multi-position matching through a special-shaped elastic sheet structure. Comprising a tail sleeve, a connecting sleeve fixed on the tail sleeve, a shell in butt joint with the connecting sleeve, a special-shaped elastic sheet which is embedded in the connecting sleeve and extends into the shell, and an insertion core which is arranged at the end part of the shell and abuts against the special-shaped elastic sheet, the optimized structure improves the overall performance of the connector, and the design of the elastic section and the abutting section enables the special-shaped elastic sheet to be more fully contacted with the rear end face of the insertion core, so that the machining tolerance and the external vibration can be better compensated, and the stable connection of optical fibers is ensured; according to the MPO insertion core connector, the structure that the abutting section is used for designing the connecting notch is ingeniously utilized, the guide column can be selectively arranged on the opposite-polarity elastic piece, other structures for fixing the guide column do not exist, and therefore the MPO insertion core connector can be flexibly arranged to be a male head connector or a female head connector, and meanwhile the internal space is optimized.

Description

Technical Field

[0001] The present invention relates to the technical field of MPO ferrule connectors, and more particularly to an MPO ferrule connector that realizes multi-position cooperation through a special-shaped elastic sheet structure. Background Art

[0002] In the current rapid development of optical communication technology, as the core component for realizing optical fiber connection, the performance of the ferrule connector directly affects the stability and quality of optical signal transmission. Existing ferrule connectors usually consist of structures such as a tail sleeve, a connection sleeve, a housing, a ferrule, and a spring. Each component has a clear division of labor and operates in coordination. Among them, the tail sleeve is used to wrap the transition area between the optical fiber and the connector, providing a firm protection for the optical fiber and effectively resisting external pulling and abrasion; the connection sleeve has the dual functions of connecting internal components and cooperating with the dust cover, preventing dust and impurities from entering the connector interior and protecting precision components; the housing and the connection sleeve are fixedly connected by specific means such as barb-type fasteners, constructing a closed protection space for the optical fiber and the ferrule and providing installation positioning support; the ferrule, as a key component, is made of high-precision materials such as ceramics, which can accurately fix and align the optical fiber end face to achieve docking with other connectors or adapters; the spring is arranged inside the housing, ensuring the close contact of the ferrule end face through axial thrust, compensating for machining tolerances and the influence of external vibration, and guaranteeing the optical signal transmission quality; the guide posts provided on some male ferrule connectors are fixed by guide post connectors, which can achieve high-precision alignment when docking with the adapter, improving the connection accuracy and reliability. Although the existing ferrule connectors can meet the basic optical fiber connection requirements, their structural designs still have significant defects. Since the housing interior needs to accommodate components such as springs and guide post connectors, and a complex clamping structure needs to be set between the connection sleeve and the housing, the overall internal structure is cumbersome, increasing the assembly process and difficulty and prolonging the production cycle; therefore, it is urgent to propose a technical solution for a ferrule connector with a more concise structure, lower cost, and reliable performance. Summary of the Invention

[0003] The present invention aims to provide a technical solution to solve the above problems in order to overcome the above situations.

[0004] An MPO ferrule connector that realizes multi-position cooperation through a special-shaped elastic sheet structure, comprising a tail sleeve, a connection sleeve fixed on the tail sleeve, a housing docked with the connection sleeve, a special-shaped elastic sheet embedded in the connection sleeve and extending into the housing interior, and a ferrule arranged at the end of the housing and abutted against the special-shaped elastic sheet; Among them, the connecting sleeve is positioned and plugged with the shell so that a chamber connected to the tail sleeve is formed inside the connecting sleeve and the shell. The special-shaped spring piece is formed by bending a strip of elastic material, and the special-shaped spring piece has at least two axially symmetrical ones. The special-shaped spring piece has a fixed section, a clamping section, an elastic section and an abutting section in sequence. The fixed section is embedded in the inside of the connecting sleeve. The clamping section is an outwardly convex structure. A clamping interface that docks with the clamping section is provided on the side of the shell. After the clamping section is inserted into the clamping interface, it works together with the fixed section to fix the shell on the connecting sleeve. The elastic section is a wavy structure. The abutting section is the end of the elastic section and is parallel to the rear end face of the plug to fully abut the rear end face of the plug, and an elastic force is applied to the plug through the elastic section. A connecting notch is also provided on the abutting section, and a positioning through hole corresponding to the connecting notch is provided on the plug.

[0005] Preferably, it also includes a guide column, one end of which is provided with an annular groove with an inner diameter corresponding to the connecting notch, the guide column is connected to the abutting section by docking the annular groove with the connecting notch, and the guide column extends to the outside of the core along the positioning through hole.

[0006] Preferably, a through hole connecting the chamber is provided at the end of the shell, the inner wall of the through hole is a slope, and the opening area outside the through hole is larger than the opening area of ​​the through hole connecting the chamber, and a slope transition structure is formed between the opening of the through hole connecting the chamber and the inner side of the chamber, the front end of the plug extends out of the shell along the through hole, and the rear end of the plug is formed with an abutment portion along its side, and the rear end of the plug is confined in the chamber by abutting and cooperating with the abutment portion and the slope transition structure.

[0007] Preferably, the inside of the ferrule is provided with a fiber optic groove penetrating its rear end face and multiple fiber optic channels penetrating its front end face, the multiple fiber optic channels are laterally arranged into at least one group, the fiber optic channel is opened at the front end of the fiber optic groove, and the multiple fiber optic channels are laterally arranged into at least one group, and a glue injection hole penetrating the side of the ferrule is opened on the side of the fiber optic groove.

[0008] Preferably, a guide sleeve is inserted through the optical fiber through slot at the rear end of the ferrule, and the guide sleeve has at least one flat through hole, and the flat through hole corresponds axially to each group of optical fiber channels.

[0009] Preferably, a slot connected to the tail sleeve is provided on the connecting sleeve, a blocking portion is axially arranged in the slot, the blocking portion is matched with the inner wall spacing of the slot, the rear end of the shell is inserted into the slot, and the blocking portion is pressed against the inner side of the shell, the fixed section has a straight section and an embedded section located at the rear end of the straight section and forming a bending angle with the straight section, the embedded section is embedded between the bottom of the slot and the blocking portion, the straight section is pressed between the blocking portion and the inner wall of the shell, and one end of the straight section close to the clamping section is arranged to be exposed from the blocking portion, so that the end of the straight section can produce elastic deformation to drive the clamping section to retract into the shell.

[0010] Preferably, the snap-in section has a vertical section perpendicularly connected to the straight section, a pressing section connected to the vertical section, and an arc section connected to the pressing section. The vertical section is perpendicular to the straight section to form a structure for clamping the snap-in opening. The pressing section is perpendicular to the vertical section, and the arc section enables an arc transition between the snap-in section and the elastic section.

[0011] Preferably, reinforcing ribs are formed by stamping between the straight section and the vertical section, between the vertical section and the pressing section, between the pressing section and the arc section, and between the arc section and the elastic section.

[0012] Preferably, the elastic section has multiple inward-bent semi-circular sections and multiple outward-bent semi-circular sections, which are staggeredly distributed, and there is a transition section between adjacent inward-bent semi-circular sections and outward-bent semi-circular sections.

[0013] Preferably, a threaded connection structure is provided between the connecting sleeve and the tail sleeve. The connecting sleeve and the tail sleeve are connected through the threaded connection structure, and a first sealing ring is also provided between the connecting sleeve and the tail sleeve. The connecting sleeve and the tail sleeve are hermetically docked through the first sealing ring. A second sealing ring is also provided on the outer side of the connecting sleeve, and a dust cap for protecting the ferrule and the housing is sleeved on the outer side of the connecting sleeve through the second sealing ring.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: Through the above technical solutions, by using the special-shaped elastic sheet structure and adopting the stamping and bending process, a fixing section, a snap-in section, an elastic section, and an abutting section are provided on the special-shaped elastic sheet, enabling the special-shaped elastic sheet to integrate multiple functions such as connection, fixing, and elastic support, replacing the traditional spring, guide post connector, and complex snap-in structure, greatly reducing the number of components, simplifying the internal structure. Through the inlay setting of the fixing section and the connecting sleeve, which is made by in-mold forming technology, the special-shaped elastic sheet is directly fixed on the connecting sleeve after production. During assembly, first, the tail sleeve is wrapped and fixed in the transition area between the optical fiber and the connector, then the connecting sleeve is fixed on the tail sleeve. After connecting the optical fiber to the ferrule, the housing is directly put on, and the housing cooperates with the connecting sleeve and the special-shaped elastic sheet to complete the fixation. The entire assembly operation is simple, reducing the assembly difficulty and complexity, and effectively controlling the material cost and assembly cost.

[0015] In addition, the optimized structure improves the overall performance of the connector. The design of the elastic section and the abutting section enables the special-shaped elastic sheet to contact the rear end face of the ferrule more fully, thus better compensating for processing tolerances and external vibrations to ensure stable optical fiber connection. By cleverly using the structure of the connecting notch designed on the abutting section, the special-shaped elastic sheet can selectively set guide posts without other structures for fixing the guide posts. Therefore, while being able to flexibly set the MPO ferrule connector as a male connector or a female connector, the internal space is optimized, enabling greater breakthroughs in terms of compactness and flexibility of the overall structure.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is a schematic cross-sectional structural diagram of the present invention; Figure 3 is an exploded structural diagram of the present invention after removing the dust cap; Figure 4 is a cross-sectional structural diagram of the present invention after removing the dust cap; Figure 5 is the present invention Figure 4 a schematic structural diagram of part A in; Figure 6 is the present invention Figure 4 a schematic structural diagram after configuring the guide post; Figure 7 is the present invention Figure 6 a schematic structural diagram of part B in; Figure 8 is a schematic structural diagram of the connecting sleeve and the special-shaped elastic piece in the present invention; Figure 9 is a three-dimensional structural diagram of the special-shaped elastic piece in the present invention; Figure 10 is a side structural diagram of the special-shaped elastic piece in the present invention; Figure 11 is a split structural diagram of the ferrule and the guide post in the present invention.

[0019] The reference numerals and names in the drawings are as follows: Tail sleeve 10, first sealing ring 11, second sealing ring 12, dust cap 13, connecting sleeve 20, slot 21, blocking portion 22, outer shell 30, card interface 31, through hole 32, inclined surface transition structure 33, special-shaped elastic piece 40, fixed section 41, straight section 411, embedded section 412, clamping section 42, vertical section 421, pressing section 422, arc section 423, reinforcing rib 424, elastic section 43, inner bent semi-circular section 431, outer bent semi-circular section 432, transition section 433, abutting section 44, connection notch 441, ferrule 50, positioning through hole 51, abutting portion 52, optical fiber through groove 53, optical fiber channel 54, glue injection hole 55, guide sleeve 56, flat through hole 57, guide post 60, annular groove 61. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present invention will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1-11 , in the embodiment of the present invention, an MPO ferrule connector that realizes multi-position cooperation through a special-shaped elastic piece structure includes a tail sleeve 10, a connecting sleeve 20 fixed on the tail sleeve 10, an outer shell 30 docked with the connecting sleeve 20, a special-shaped elastic piece 40 embedded in the connecting sleeve 20 and extending into the interior of the outer shell 30, and a ferrule 50 disposed at the end of the outer shell 30 and abutting against the special-shaped elastic piece 40; Among them, the connecting sleeve 20 is positioned and inserted into the outer shell 30, so that a chamber communicating with the tail sleeve 10 is formed inside the connecting sleeve 20 and the outer shell 30. The special-shaped elastic piece 40 is formed by bending a strip-shaped elastic material, and there are at least two axially symmetric special-shaped elastic pieces 40. The special-shaped elastic piece 40 sequentially has a fixed section 41, a clamping section 42, an elastic section 43, and an abutting section 44. The fixed section 41 is embedded in the connecting sleeve 20. The clamping section 42 is a convex structure. A card interface 31 for docking with the clamping section 42 is opened on the side of the outer shell 30. After the clamping section 42 is inserted into the card interface 31, it cooperates with the fixed section 41 to fix the outer shell 30 on the connecting sleeve 20. The elastic section 43 is a wavy structure. The abutting section 44 is the end of the elastic section 43 and is parallel to the rear end face of the ferrule 50 to fully abut against the rear end face of the ferrule 50, and an elastic acting force is applied to the ferrule 50 through the elastic section 43. A connection notch 441 is also opened on the abutting section 44, and a positioning through hole 51 corresponding to the connection notch 441 is opened on the ferrule 50.

[0022] In the MPO ferrule 50 connector with the structure of the special-shaped elastic piece 40, the connecting sleeve 20 and the outer shell 30 are initially combined through positioning plugging, and an accommodation space is formed inside. Among them, the special-shaped elastic piece 40 is the core component, and its fixed section 41 is firmly embedded inside the connecting sleeve 20 to provide basic support. When the outer shell 30 is docked with the connecting sleeve 20, the convex structure of the clamping section 42 is inserted into the clamping port 31 on the side of the outer shell 30 and cooperates with the fixed section 41 to fix the outer shell 30 on the connecting sleeve 20, completing the mechanical connection. At the same time, the elastic section 43 of the special-shaped elastic piece 40 is wavy and has good elastic deformation ability. The abutting section 44 at its end abuts against the rear end face of the ferrule 50 in parallel. When the ferrule 50 is subjected to an external force or docked with other components, the elastic section 43 can generate an elastic acting force through its own deformation to ensure that the end face of the ferrule 50 is in close contact. The connection notch 441 on the abutting section 44 corresponds to the positioning through hole 51 on the ferrule 50. When the MPO ferrule 50 connector of this technical solution is a male connector, a guiding post 60 can be set through the connection notch 441, that is, the MPO ferrule 50 connector further includes a guiding post 60. One end of the guiding post 60 is provided with an annular groove 61 whose inner diameter corresponds to the connection notch 441. The guiding post 60 is connected to the abutting section 44 through the docking of the annular groove 61 and the connection notch 441, and the guiding post 60 extends out of the ferrule 50 along the positioning through hole 51. During the docking process with the female adapter, the guiding post 60 can guide the ferrule 50 to accurately align with the inner ferrule 50 of the adapter, effectively reducing the docking deviation and loss, and improving the accuracy and reliability of the connection.

[0023] Therefore, through the above technical solution, by using the structure of the special-shaped elastic piece 40 and adopting the process of stamping and bending, the fixed section 41, the clamping section 42, the elastic section 43 and the abutting section 44 are set on the special-shaped elastic piece 40, so that the special-shaped elastic piece 40 integrates multiple functions such as connection, fixation, and elastic support, replacing the traditional spring, guiding post 60 connecting piece and complex clamping structure, greatly reducing the number of components and simplifying the internal structure. Through the in-mold forming technology, the fixed section 41 of the special-shaped elastic piece 40 is embedded in the connecting sleeve 20, and after production, the special-shaped elastic piece 40 is directly fixed on the connecting sleeve 20. During assembly, first wrap and fix the tail sleeve 10 in the transition area between the optical fiber and the connector, then fix the connecting sleeve 20 on the tail sleeve 10. After connecting the optical fiber to the ferrule 50, directly put on the outer shell 30, and make the outer shell 30 cooperate with the connecting sleeve 20 and the special-shaped elastic piece 40 to complete the fixation. The whole assembly operation is simple, reducing the assembly difficulty and complexity, and effectively controlling the material cost and assembly cost.

[0024] In addition, the optimized structure improves the overall performance of the connector. The design of the elastic section 43 and the abutting section 44 enables the special-shaped elastic piece 40 to come into contact with the rear end face of the ferrule 50 more fully, so as to better compensate for machining tolerances and external vibrations and ensure stable fiber optic connection. The structure that cleverly utilizes the design of the connection notch 441 in the abutting section 44 enables the special-shaped elastic piece to selectively set the guide post 60, and there is no other structure for fixing the guide post 60. Therefore, while the MPO ferrule 50 connector can be flexibly set as a male connector or a female connector, the internal space is optimized, and greater breakthroughs can be made in terms of compactness and flexibility of the overall structure.

[0025] Please refer to Figure 7 , on the basis of the above technical solution, it is further proposed that a through hole 32 communicating with the chamber is provided at the end of the outer shell 30. The inner wall of the through hole 32 is an inclined surface, and the opening area outside the through hole 32 is larger than the opening area of the chamber communicated with the through hole 32. A slope transition structure 33 is formed between the opening of the chamber communicated with the through hole 32 and the inner side of the chamber. The front end of the ferrule 50 extends out of the outer shell 30 along the through hole 32, and an abutting portion 52 is formed on the side of the rear end of the ferrule 50. The rear end of the ferrule 50 is in abutting fit with the slope transition structure 33 through the abutting portion 52 to be restricted in the chamber. The through hole 32 at the end of the outer shell 30 adopts the design of an inclined surface structure with a large outer part and a small inner part, which forms an efficient cooperation with the assembly method of the ferrule 50. When the ferrule 50 is inserted from the rear end of the outer shell 30 and extends out through the through hole 32, the inclined surface of the inner wall of the through hole 32 effectively broadens the moving space of the ferrule 50 in this area, enabling the ferrule 50 to flexibly adjust the angle and position within a small range based on the guidance and clearance of the inclined surface during the docking process. This fine-tuning function can effectively compensate for machining errors and assembly deviations, ensure higher-precision alignment when the end face of the ferrule 50 is docked with the adapter, and reduce the optical signal loss caused by position offset. At the same time, the inclined surface structure gives the ferrule 50 an appropriate degree of freedom of movement, and also enhances the adaptability of the connector to external vibrations and slight external force impacts, further improving the stability and reliability of fiber optic connection and meeting the stringent requirements for high-precision and high-stability connection in the field of optical communication.

[0026] Please refer to Figure 7 and Figure 11On the basis of the above technical scheme, it is further proposed that the ferrule 50 is provided with an optical fiber through groove 53 penetrating the rear end face thereof and a plurality of optical fiber channels 54 penetrating the front end face thereof, the plurality of optical fiber channels 54 are arranged transversely into at least one group, the optical fiber channels 54 are opened at the front end of the optical fiber through groove 53, and the plurality of optical fiber channels 54 are arranged transversely into at least one group, and a glue injection hole 55 penetrating the side of the ferrule 50 is opened on the side of the optical fiber through groove 53; the combination of the optical fiber through groove 53, the plurality of transversely arranged optical fiber channels 54, and the glue injection hole 55 realizes the efficient integration and stable fixation of the plurality of optical fibers, and the optical fibers can be fixed in the optical fiber through groove 53 and the channel by injecting glue through the glue injection hole 55, so as to ensure the reliability of the optical fiber connection; a guide sleeve 56 is also inserted through the optical fiber through groove 53 at the rear end of the ferrule 50, and the guide sleeve 56 has at least one flat through hole 57, and the flat through hole 57 corresponds axially to each group of optical fiber channels 54, and the structure plays a precise guiding role for the optical fiber during assembly, so as to facilitate the rapid and accurate insertion of the plurality of optical fibers into the optical fiber channels 54, thereby improving the assembly efficiency.

[0027] See also Figures 3-9 On the basis of the above technical solution, it is further proposed that a slot 21 connected to the tail sleeve 10 is provided on the connecting sleeve 20, a blocking portion 22 is axially provided in the slot 21, the blocking portion 22 is matched with the inner wall spacing of the slot 21, the rear end of the shell 30 is inserted into the slot 21, and the blocking portion 22 is pressed against the inner side of the shell 30, the fixed section 41 has a straight section 411 and an embedded section 412 located at the rear end of the straight section 411 and forming a bending angle with the straight section 411, the embedded section 412 is embedded between the bottom of the slot 21 and the blocking portion 22, the straight section 411 is pressed between the blocking portion 22 and the inner wall of the shell 30, and one end of the straight section 411 close to the clamping section 42 is configured to be exposed from the blocking portion 22, so that the end of the straight section 411 can produce elastic deformation to drive the clamping section 42 to retract into the outer The slot 21 and the built-in blocking portion 22 on the connecting sleeve 20 form a positioning and limiting structure with the rear end of the outer shell 30, which can not only effectively restrict the axial movement of the outer shell 30 and ensure the stable connection between the outer shell 30 and the connecting sleeve 20, but also provide an installation positioning reference for the special-shaped spring piece 40; the straight section 411 and the embedded section 412 of the fixed section 41 of the special-shaped spring piece 40 are designed so that they can be cleverly engaged between the bottom of the slot 21, the blocking portion 22 and the inner wall of the outer shell 30, and while ensuring the fixing strength, the straight section 411 is given elastic deformation ability. When the outer shell 30 needs to be disassembled, the end of the straight section 411 exposed to the blocking portion 22 can be subjected to force to produce elastic deformation, thereby driving the clamping section 42 to retract, and easily releasing the engaging state between the outer shell 30 and the special-shaped spring piece 40, greatly simplifying the disassembly process.

[0028] See also Figure 5 , Figure 8 , Figure 9 and Figure 10, on the basis of the above technical solution, it is further proposed that the clamping section 42 has a vertical section 421 vertically connected to the straight section 411, a pressing section 422 connected to the vertical section 421, and an arc section 423 connected to the pressing section 422. The vertical section 421 is perpendicular to the straight section 411 to form a structure for clamping the clamping port 31. The pressing section 422 is perpendicular to the vertical section 421, and the arc section 423 makes the transition between the clamping section 42 and the elastic section 43 be an arc transition; the structure in which the vertical section 421 is perpendicularly matched with the straight section 411 can accurately clamp the clamping port 31 of the outer shell 30 to form a stable mechanical connection, ensuring that the connector is not easily loosened during use; the vertical design of the pressing section 422 facilitates the operator to apply an external force. By pressing the pressing section 422, at this time, one end of the straight section 411 exposed from the blocking portion 22 is elastically deformed by the force, causing the clamping section 42 to retract, realizing the quick disassembly of the outer shell 30, greatly improving the operation convenience; the transition design of the arc section 423 enables the outer shell 30 to use the transition of the arc section 423 to guide the clamping section 42 to retract when being inserted. When correctly inserted, the clamping section 42 will be able to protrude along the clamping port 31, realizing the plug-and-fix operation method. This structural design not only enhances the overall mechanical stability of the connector, but also optimizes the convenience of assembly and disassembly. In addition, reinforcing ribs 424 are stamped between the straight section 411 and the vertical section 421, between the vertical section 421 and the pressing section 422, between the pressing section 422 and the arc section 423, and between the arc section 423 and the elastic section 43, significantly improving the overall strength and rigidity of the special-shaped elastic piece 40 at the clamping section 42 position, enabling it to maintain structural integrity during frequent elastic deformation processes, thereby ensuring the firm stability of the cooperation between the outer shell 30 and the connecting sleeve 20.

[0029] Please refer to Figure 5 , Figure 9 and Figure 10 , on the basis of the above technical solution, it is further proposed that the elastic section 43 has multiple inner-bent semi-circular sections 431 and multiple outer-bent semi-circular sections 432, and the multiple inner-bent semi-circular sections 431 and the multiple outer-bent semi-circular sections 432 are staggeredly distributed, and there is a transition section 433 between adjacent inner-bent semi-circular sections 431 and outer-bent semi-circular sections 432; the setting of the transition section 433 can improve the stability of the elastic section 43 for axial elastic deformation, that is, the elastic section 43 will not tilt to one side during the elastic deformation process, so that it can more stably apply an axial thrust to the ferrule 50, effectively compensating for the machining tolerance and the influence of external vibration, and further ensuring the stability of the optical fiber connection and the optical signal transmission quality.

[0030] Please refer to Figures 1-3, on the basis of the above technical solution, it is further proposed that a threaded connection structure is provided between the connection sleeve 20 and the tail sleeve 10. The connection sleeve 20 and the tail sleeve 10 are connected through the threaded connection structure, and a first sealing ring 11 is also provided between the connection sleeve 20 and the tail sleeve 10. The connection sleeve 20 and the tail sleeve 10 are hermetically docked through the first sealing ring 11. A second sealing ring 12 is also provided on the outer side of the connection sleeve 20. A dust cap 13 for protecting the ferrule 50 and the housing 30 is sleeved on the outer side of the connection sleeve 20 through the second sealing ring 12; the threaded connection structure realizes the quick disassembly and assembly of the connection sleeve 20 and the tail sleeve 10, which is convenient for the installation, maintenance and replacement of the optical fiber inside the connector. The setting of the first sealing ring 11 tightly fills the docking gap between the connection sleeve 20 and the tail sleeve 10, effectively preventing impurities such as dust and water vapor from invading the inside of the connector, and avoiding the performance of the optical fiber and precision components such as the ferrule 50 being affected by contamination; the second sealing ring 12 on the outer side of the connection sleeve 20, used in cooperation with the dust cap 13, further strengthens the external protection ability of the connector. When the dust cap 13 is sleeved on the connection sleeve 20, the second sealing ring 12 can form a sealing barrier between the dust cap 13 and the connection sleeve 20, preventing external pollutants from entering the ferrule 50 and housing 30 areas when the connector is not in use, thereby protecting the cleanliness of the end face of the ferrule 50 and ensuring the stability of optical signal transmission.

[0031] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to include all changes falling within the meaning and scope of the equivalent elements of the claims in the present invention.

Claims

1. An MPO ferrule connector that achieves multi-position cooperation through a special-shaped elastic piece structure, characterized in that, It includes a tail sleeve (10), a connecting sleeve (20) fixed to the tail sleeve (10), a housing (30) docked to the connecting sleeve (20), a special-shaped elastic piece (40) embedded in the connecting sleeve (20) and extending into the interior of the housing (30), and a ferrule (50) provided at the end of the housing (30) and abutted against the special-shaped elastic piece (40); Among them, the connecting sleeve (20) is positioned and inserted into the housing (30), so that a chamber communicating with the tail sleeve (10) is formed inside the connecting sleeve (20) and the housing (30). The special-shaped elastic piece (40) is formed by bending a strip-shaped elastic material, and there are at least two axially symmetric special-shaped elastic pieces (40). The special-shaped elastic piece (40) sequentially has a fixed section (41), a clamping section (42), an elastic section (43) and an abutting section (44). The fixed section (41) is embedded inside the connecting sleeve (20). The clamping section (42) has a convex structure. A clamping interface (31) docked to the clamping section (42) is provided on the side of the housing (30). After the clamping section (42) is inserted into the clamping interface (31), it acts together with the fixed section (41) to fix the housing (30) on the connecting sleeve (20). The elastic section (43) has a wavy structure. The abutting section (44) is the end of the elastic section (43) and is parallel to the rear end face of the ferrule (50) to fully abut against the rear end face of the ferrule (50), and an elastic acting force is applied to the ferrule (50) through the elastic section (43). A connecting notch (441) is also provided on the abutting section (44), and a positioning through hole (51) corresponding to the connecting notch (441) is provided on the ferrule (50).

2. The MPO ferrule connector that realizes multi-position cooperation through the special-shaped elastic sheet structure according to claim 1, wherein, It further includes a guide post (60). One end of the guide post (60) is provided with an annular groove (61) whose inner diameter corresponds to the connecting notch (441). The guide post (60) is connected to the abutting section (44) through the docking of the annular groove (61) and the connecting notch (441), and the guide post (60) extends out of the ferrule (50) along the positioning through hole (51).

3. The MPO ferrule connector that achieves multi-position cooperation through a special-shaped elastic sheet structure according to claim 1, characterized in that, A through hole (32) communicating with the chamber is provided at the end of the housing (30). The inner wall of the through hole (32) is an inclined surface, and the opening area of the through hole (32) outside is larger than the opening area of the through hole (32) communicating with the chamber. A bevel transition structure (33) is formed between the opening of the through hole (32) communicating with the chamber and the inner side of the chamber. The front end of the ferrule (50) extends out of the housing (30) along the through hole (32). An abutting portion (52) is formed on the side of the rear end of the ferrule (50). The rear end of the ferrule (50) is abutted and cooperated with the bevel transition structure (33) through the abutting portion (52) to be restricted in the chamber.

4. A MPO ferrule connector that achieves multi-position cooperation through a special-shaped elastic sheet structure according to claim 1, characterized in that, A fiber optic through groove (53) penetrating its rear end face and multiple fiber optic channels (54) penetrating its front end face are provided inside the ferrule (50). The multiple fiber optic channels (54) are arranged horizontally into at least one group. The fiber optic channels (54) are opened at the front end of the fiber optic through groove (53), and the multiple fiber optic channels (54) are arranged horizontally into at least one group. A glue injection hole (55) penetrating the side of the ferrule (50) is provided on the side of the fiber optic through groove (53).

5. The MPO ferrule connector that realizes multi-position cooperation through a special-shaped elastic piece structure according to claim 4, wherein, A guide sleeve (56) is inserted through the optical fiber through slot (53) at the rear end of the insert (50), and the guide sleeve (56) has at least one flat through hole (57), and the flat through hole (57) corresponds axially to each group of optical fiber channels (54).

6. The MPO ferrule connector that achieves multi-position cooperation through a special-shaped elastic sheet structure according to claim 1, wherein The connecting sleeve (20) is provided with a slot (21) connected to the tail sleeve (10), a blocking portion (22) is axially provided in the slot (21), the blocking portion (22) and the inner wall of the slot (21) are spaced in accordance with each other, the rear end of the housing (30) is inserted into the slot (21), and the blocking portion (22) abuts against the inner side of the housing (30), the fixing section (41) comprises a straight section (411) and an embedded section (412) located at the rear end of the straight section (411) and forming a bending angle with the straight section (411), the embedded section (412) is embedded between the bottom of the slot (21) and the blocking portion (22), the straight section (411) abuts between the blocking portion (22) and the inner wall of the housing (30), and an end of the straight section (411) close to the clamping section (42) is arranged to be exposed from the blocking portion (22).

7. The MPO ferrule connector achieving multi-position mating through a special-shaped elastic piece structure according to claim 6, characterized in that, The clamping section (42) comprises a vertical section (421) vertically connected to the straight section (411), a pressing section (422) connected to the vertical section (421), and an arcuate section (423) connected to the pressing section (422); the vertical section (421) is perpendicular to the straight section (411) to form a structure for clamping the clamping interface (31); the pressing section (422) is perpendicular to the vertical section (421); and the arcuate section (423) forms an arcuate transition from the clamping section (42) to the elastic section (43).

8. The MPO ferrule connector achieving multi-position cooperation through the special-shaped elastic sheet structure according to claim 7, characterized in that, Reinforcing ribs (424) are stamped and formed between the straight section (411) and the vertical section (421), between the vertical section (421) and the pressing section (422), between the pressing section (422) and the curved section (423), and between the curved section (423) and the elastic section (43).

9. The MPO ferrule connector for achieving multi-position cooperation through a special-shaped elastic piece structure according to claim 1, wherein The elastic section (43) comprises a plurality of inwardly curved semicircular sections (431) and a plurality of outwardly curved semicircular sections (432), the plurality of inwardly curved semicircular sections (431) and the plurality of outwardly curved semicircular sections (432) are staggered and distributed, and a transition section (433) is provided between adjacent inwardly curved semicircular sections (431) and outwardly curved semicircular sections (432).

10. A MPO ferrule connector that achieves multi-position cooperation through a special-shaped elastic sheet structure according to claim 1, characterized in that, A threaded connection structure is provided between the connecting sleeve (20) and the tail sleeve (10), the connecting sleeve (20) and the tail sleeve (10) are connected via the threaded connection structure, and a first sealing ring (11) is also provided between the connecting sleeve (20) and the tail sleeve (10), the connecting sleeve (20) and the tail sleeve (10) are sealed and butted together via the first sealing ring (11), a second sealing ring (12) is also provided on the outside of the connecting sleeve (20), and a dust cap (13) for protecting the ferrule (50) and the housing (30) is sheathed on the outside of the connecting sleeve (20) via the second sealing ring (12).

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