An MPO ferrule connector that achieves multi-position cooperation through a special-shaped elastic piece structure

Abstract

The present invention relates to the technical field of MPO ferrule connectors, and in particular to an MPO ferrule connector that achieves multi-position matching through a special-shaped spring clip structure, comprising a tail sleeve, a connecting sleeve fixed on the tail sleeve, a shell docked to the connecting sleeve, a special-shaped spring clip embedded in the connecting sleeve and extending into the interior of the shell, and a ferrule arranged at the end of the shell and abutting the special-shaped spring clip; 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 spring clip to more fully contact the rear end face of the ferrule, thereby better compensating for processing tolerances and external vibrations and ensuring stable optical fiber connection; and the structure of the connection notch is cleverly designed by utilizing the abutting section, so that the special-shaped spring clip can selectively be provided with a guide column, and there is no other structure for fixing the guide column, so that the MPO ferrule connector can be flexibly set as a male connector or a female connector while optimizing the internal space.

Description

Technical Field

[0001] The present invention relates to the technical field of MPO ferrule connectors, and in particular to an MPO ferrule connector that achieves multi-position matching through a special-shaped spring clip structure. Background Art

[0002] With the rapid development of optical communication technology, ferrule connectors, as core components for fiber optic connections, have a significant impact on the stability and quality of optical signal transmission. Existing ferrule connectors typically consist of a boot, connector sleeve, housing, ferrule, and spring, each with a clear division of labor and coordinated operation. Among them, the tail sleeve is used to wrap the transition area between the optical fiber and the connector, which provides firm protection for the optical fiber and effectively resists external pulling and wear; the connecting sleeve has the dual functions of connecting internal components and cooperating with the dust cover, which can prevent dust and impurities from invading the inside of the connector and protect precision components; the outer shell and the connecting sleeve are fixedly connected by specific methods such as barbed hook-type snap-fit parts, which build a closed protective space for the optical fiber and the ferrule, and provide installation and 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 set inside the outer shell, and ensures close contact between the ferrule end face through axial thrust, compensates for processing tolerances and external vibrations, and ensures the quality of optical signal transmission; the guide column set on some male ferrule connectors is fixed with the help of guide column connectors, which can achieve high-precision alignment when docking with the adapter, thereby improving connection accuracy and reliability.

[0003] While existing ferrule connectors can meet basic fiber optic connection requirements, their structural design still has significant flaws. The housing must accommodate components such as springs and guide post connectors, while also requiring a complex snap-fit mechanism between the connector sleeve and the housing. This results in a complex internal structure, increasing the assembly process and difficulty, and prolonging the production cycle. Therefore, a more streamlined, cost-effective, and reliable ferrule connector technology solution is urgently needed. Summary of the Invention

[0004] In order to overcome the above-mentioned shortcomings, the present invention aims to provide a technical solution that can solve the above-mentioned problems.

[0005] An MPO ferrule connector that achieves multi-position mating through a special-shaped spring clip structure, comprising a tail sleeve, a connecting sleeve fixed to the tail sleeve, a shell docked with the connecting sleeve, a special-shaped spring clip embedded in the connecting sleeve and extending into the interior of the shell, and a ferrule disposed at an end of the shell and abutting against the special-shaped spring clip;

[0006] Among them, the connecting sleeve is positioned and plugged into the shell, so that the connecting sleeve and the inside of the shell form a cavity connected to the tail sleeve. 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 docking with the clamping section is provided on the side of the shell. After the clamping section is inserted into the card 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 core to fully abut the rear end face of the core, and an elastic force is applied to the core 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 core.

[0007] Preferably, a guide post is further included, one end of which is provided with an annular groove with an inner diameter corresponding to the connecting notch, the guide post is connected to the abutting section by docking the annular groove with the connecting notch, and the guide post extends to the outside of the core along the positioning through hole.

[0008] Preferably, a through hole connecting to 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 to the chamber, and a slope transition structure is formed between the opening of the through hole connecting to the chamber and the inner side of the chamber. The front end of the ferrule extends to the outside of the shell along the through hole, and the rear end of the ferrule is formed with an abutment portion along its side. The rear end of the ferrule is confined in the chamber by abutting and cooperating with the abutment portion and the slope transition structure.

[0009] Preferably, the inside of the ferrule is provided with a fiber optic groove running through its rear end face and multiple fiber optic channels running through its front end face, the multiple fiber optic channels are arranged transversely 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 arranged transversely into at least one group, and a glue injection hole running through the side of the ferrule is opened on the side of the fiber optic groove.

[0010] Preferably, a guide sleeve is inserted into the rear end of the ferrule through the optical fiber through slot, 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.

[0011] Preferably, a slot connected to the tail sleeve is provided on the connecting sleeve, and a blocking portion is axially provided in the slot, and 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 is pressed against the inner side of the shell through the blocking portion. 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, and the straight section is abutted between the blocking portion and the inner wall of the shell, and one end of the straight section close to the clamping section is set 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.

[0012] Preferably, the snap-fit section has a vertical section vertically connected to the straight section, a pressing section connected to the vertical section, and an arcuate section connected to the pressing section. The vertical section is perpendicular to the straight section to form a structure that clamps the card interface. The pressing section is perpendicular to the vertical section, and the arcuate section makes an arcuate transition from the snap-fit section to the elastic section.

[0013] Preferably, reinforcing ribs are stamped and formed 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.

[0014] Preferably, the elastic section has multiple inwardly curved semicircular sections and multiple outwardly curved semicircular sections, the multiple inwardly curved semicircular sections and the multiple outwardly curved semicircular sections are staggered, and there is a transition section between adjacent inwardly curved semicircular sections and outwardly curved semicircular sections.

[0015] Preferably, a threaded connection structure is provided between the connecting sleeve and the tail sleeve, and the connecting sleeve and the tail sleeve are connected through the threaded connection structure. A first sealing ring is also provided between the connecting sleeve and the tail sleeve, and the connecting sleeve and the tail sleeve are sealed and connected through the first sealing ring. A second sealing ring is also provided on the outside of the connecting sleeve, and a dust cap for protecting the core and the shell is covered on the outside of the connecting sleeve by the second sealing ring.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] Through the above technical solution, the special-shaped spring piece structure is utilized, and a stamping and bending process is adopted to set a fixed section, a clamping section, an elastic section and abutting section on the special-shaped spring piece, so that the special-shaped spring piece integrates multiple functions such as connection, fixation, and elastic support, replacing the traditional spring, guide column connector and complex clamping structure, greatly reducing the number of parts, simplifying the internal structure, and adopting in-mold forming technology to manufacture the special-shaped spring piece directly on the connecting sleeve through the inlay setting of the fixed section and the connecting sleeve. During assembly, the tail sleeve is first wrapped and fixed to the transition area between the optical fiber and the connector, and then the connecting sleeve is fixed on the tail sleeve. After connecting the light to the ferrule, the outer shell is directly put on, and the outer shell cooperates with the connecting sleeve and the special-shaped spring piece to complete the fixation. The entire assembly operation is simple, which reduces the difficulty and complexity of assembly and effectively controls the material cost and assembly cost.

[0018] In addition, the optimized structure improves the overall performance of the connector. The design of the elastic section and the abutment section enables the special-shaped spring clip to more fully contact the rear end face of the ferrule, thereby better compensating for processing tolerances and external vibrations, and ensuring stable optical fiber connections. The clever use of the abutment section to design the connection notch structure allows the special-shaped spring clip to selectively set the guide column, and there is no other structure to fix the guide column. Therefore, the MPO ferrule connector can be flexibly set as a male connector or a female connector while optimizing the internal space, so that the overall structure can achieve greater breakthroughs in terms of compactness and flexibility.

[0019] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the explosion structure of the present invention after removing the dust cap;

[0024] Figure 4 This is a schematic diagram of the cross-sectional structure of the present invention after removing the dust cap;

[0025] Figure 5 This invention Figure 4 Schematic diagram of the structure at A in the middle;

[0026] Figure 6 This invention Figure 4 Schematic diagram of the structure after configuring the guide column;

[0027] Figure 7 This invention Figure 6 Schematic diagram of the structure at B in the middle;

[0028] Figure 8 It is a structural schematic diagram of the connecting sleeve and the special-shaped spring piece in the present invention;

[0029] Figure 9 It is a schematic diagram of the three-dimensional structure of the special-shaped shrapnel in the present invention;

[0030] Figure 10 It is a side structural diagram of the special-shaped shrapnel in the present invention;

[0031] Figure 11 It is a schematic diagram of the split structure of the ferrule and the guide column in the present invention.

[0032] The reference numerals and names in the figures are as follows:

[0033] Tail sleeve 10, first sealing ring 11, second sealing ring 12, dust cap 13, connecting sleeve 20, slot 21, blocking portion 22, housing 30, card interface 31, through hole 32, inclined transition structure 33, special-shaped spring piece 40, fixing section 41, straight section 411, embedding section 412, card connection section 42, vertical section 421, pressing section 422, arc section 423, reinforcing rib 424, elastic section 43, inward curved semicircular section 431, outward curved semicircular section 432, transition section 433, abutting section 44, connecting 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 column 60, annular groove 61. DETAILED DESCRIPTION

[0034] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0035] See also Figure 1-11 In an embodiment of the present invention, an MPO ferrule connector that achieves multi-position mating through a special-shaped spring clip structure includes a tail sleeve 10, a connecting sleeve 20 fixed to the tail sleeve 10, a shell 30 docked with the connecting sleeve 20, a special-shaped spring clip 40 embedded in the connecting sleeve 20 and extending into the interior of the shell 30, and a ferrule 50 disposed at an end of the shell 30 and abutting against the special-shaped spring clip 40;

[0036] Among them, the connecting sleeve 20 is positioned and plugged with the shell 30, so that the connecting sleeve 20 and the shell 30 form a chamber communicating with the tail sleeve 10. The special-shaped spring piece 40 is formed by bending a strip of elastic material, and the special-shaped spring piece 40 has at least two axially symmetrical sections. The special-shaped spring piece 40 has a fixed section 41, a clamping section 42, an elastic section 43 and abutting section 44 in sequence. The fixed section 41 is embedded in the interior of the connecting sleeve 20, and the clamping section 42 is a convex structure. A connection section 43 is provided on the side of the shell 30 to connect with the clamping section 43. 2, the card interface 31, the card section 42 is inserted into the card interface 31 and works together with the fixing 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 surface of the ferrule 50 to fully abut the rear end surface of the ferrule 50, and applies an elastic force to the ferrule 50 through the elastic section 43. A connecting notch 441 is further provided on the abutting section 44, and a positioning through hole 51 corresponding to the connecting notch 441 is provided on the ferrule 50.

[0037] In the MPO ferrule 50 connector with the special-shaped spring clip 40 structure, the connecting sleeve 20 and the shell 30 are initially combined by positioning and plugging, and an accommodating space is formed inside them, wherein the special-shaped spring clip 40 serves as a core component, and its fixing section 41 is firmly embedded in the connecting sleeve 20 to provide basic support. When the shell 30 is docked with the connecting sleeve 20, the convex structure of the clamping section 42 is inserted into the clamping interface 31 on the side of the shell 30, and cooperates with the fixing section 41 to fix the shell 30 on the connecting sleeve 20 to complete the mechanical connection; at the same time, the elastic section 43 of the special-shaped spring clip 40 is wavy, which has good elastic deformation ability, and the abutting section 44 at its end is parallel to the rear end face of the ferrule 50. When the ferrule 50 is subjected to external force or docked with other components, the elastic section 43 can generate elastic force through its own deformation. Ensure that the end face of the ferrule 50 is in close contact; and the connecting 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 the present technical solution is a male connector, the guide post 60 can be set through the connecting notch 441, that is, the MPO ferrule 50 connector also includes a guide post 60, and one end of the guide post 60 is provided with an annular groove 61 with an inner diameter corresponding to the connecting notch 441. The guide post 60 is connected to the abutting section 44 by docking the annular groove 61 with the connecting notch 441, and the guide post 60 extends to the outside of the ferrule 50 along the positioning through-hole 51. During the docking process with the female adapter, the guide post 60 can guide the ferrule 50 to align with the ferrule 50 inside the adapter with high precision, effectively reducing docking deviation and loss, and improving the accuracy and reliability of the connection.

[0038] Therefore, through the above technical solution, the special-shaped spring piece 40 structure is utilized, and a stamping and bending process is adopted to set a fixing section 41, a clamping section 42, an elastic section 43 and abutting section 44 on the special-shaped spring piece 40, so that the special-shaped spring piece 40 integrates multiple functions such as connection, fixation, and elastic support, replacing the traditional spring, guide column 60 connector and complex clamping structure, greatly reducing the number of components and simplifying the internal structure. Through the inlay setting of the fixing section 41 and the connecting sleeve 20, it is manufactured by in-mold molding technology. After manufacturing, the special-shaped spring piece 40 is directly fixed on the connecting sleeve 20. During assembly, the tail sleeve 10 is first wrapped and fixed in the transition area between the optical fiber and the connector, and then the connecting sleeve 20 is fixed on the tail sleeve 10. After connecting the light to the core 50, the shell 30 is directly put on, so that the shell 30 cooperates with the connecting sleeve 20 and the special-shaped spring piece 40 to complete the fixation. The entire assembly operation is simple, the assembly difficulty and complexity are reduced, and the material cost and assembly cost are effectively controlled.

[0039] In addition, the optimized structure improves the overall performance of the connector. The design of the elastic section 43 and the abutment section 44 enables the special-shaped spring clip 40 to more fully contact the rear end face of the ferrule 50, thereby better compensating for processing tolerances and external vibrations, and ensuring the stability of the optical fiber connection; and the clever use of the abutment section 44 to design the connection notch 441 structure allows the special-shaped spring clip to selectively set the guide column 60, and there is no other structure to fix the guide column 60. Therefore, the MPO ferrule 50 connector can be flexibly set as a male connector or a female connector while optimizing the internal space, so that the overall structure can achieve a greater breakthrough in terms of compactness and flexibility.

[0040] See also 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 shell 30, the inner wall of the through hole 32 is a slope, and the opening area outside the through hole 32 is larger than the opening area of the through hole 32 communicating with the chamber, and a slope 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 outside of the shell 30 along the through hole 32, and the rear end of the ferrule 50 is formed with an abutment portion 52 along its side. The rear end of the ferrule 50 is restricted in the chamber by abutting with the abutment portion 52 and the slope transition structure 33; the through hole 32 at the end of the shell 30 adopts a slope structure design with a larger outside and a smaller inside, which forms an efficient match with the assembly method of the ferrule 50. When the ferrule 50 is removed from the rear of the shell 30 When the end is installed and extended through the through hole 32, the inclined surface of the inner wall of the through hole 32 effectively widens the activity space of the core 50 in this area, so that the core 50 can 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 processing errors and assembly deviations, ensuring that the end face of the core 50 and the adapter are aligned with higher precision when docking, reducing the optical signal loss caused by position offset; at the same time, the inclined surface structure gives the core 50 a moderate 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 the optical fiber connection, and meeting the stringent requirements of the optical communication field for high-precision and high-stability connections.

[0041] See also Figure 7 and Figure 11On the basis of the above technical solution, it is further proposed that the ferrule 50 is provided with an optical fiber groove 53 passing through its rear end face and a plurality of optical fiber channels 54 passing through its front end face, the plurality of optical fiber channels 54 are arranged transversely into at least one group, the optical fiber channel 54 is opened at the front end of the optical fiber groove 53, and the plurality of optical fiber channels 54 are arranged transversely into at least one group, and a glue injection hole 55 passing through the side of the ferrule 50 is opened on the side of the optical fiber groove 53; the combination of the optical fiber 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 multiple optical fibers. By injecting glue through the glue injection hole 55, the optical fibers can be fixed in the optical fiber groove 53 and the channel, thereby ensuring the reliability of the optical fiber connection; a guide sleeve 56 is further inserted through the optical fiber groove 53 at the rear end of the ferrule 50, and the guide sleeve 56 has at least one flat through hole 57, which corresponds axially to each group of optical fiber channels 54. This structure plays a precise guiding role for the optical fibers during assembly, facilitating the rapid and accurate insertion of multiple optical fibers into the optical fiber channels 54, thereby improving assembly efficiency.

[0042] See also Figure 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, and 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 abuts against the inner side of the shell 30 through the blocking portion 22. 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 abuts between the blocking portion 22 and the inner wall of the shell 30, and the end of the straight section 411 close to the clamping section 42 is set 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 outside. The outer shell 30 is fixed with the outer shell 30, and the outer shell 30 is fixed with the outer shell 30. The fixing portion 21 of the fixing portion 21 is fixed with the fixing portion 22, and the fixing portion 22 is fixed with the fixing portion 22. When the fixing portion 21 is fixed, the fixing portion 21 is fixed with the fixing portion 22, and the fixing portion 22 is fixed with the fixing portion 22. When the fixing portion 21 is fixed, the fixing portion 21 is fixed with the fixing portion 22, and the fixing portion 21 is fixed with the fixing portion 22. When the fixing portion 21 is fixed, the fixing portion 21 is fixed with the fixing portion 22, and the fixing portion 21 is fixed with the fixing portion 22. When the fixing portion 21 is fixed, the fixing portion 21 is fixed with the fixing portion 21, and the fixing portion 21 is fixed with the fixing portion 22, and the fixing portion 21 is fixed with the fixing portion 22. When the fixing portion 21 is fixed, the fixing portion 21 is fixed with the fixing portion 21, and the fixing portion 21 is fixed with the fixing portion 22, and the fixing portion 21 is fixed with the fixing portion 21. When the fixing portion 21 is fixed, the fixing portion 21 is fixed with the fixing portion 21, and ...

[0043] See also Figure 5 、 Figure 8 、 Figure 9 and Figure 10On the basis of the above technical solution, it is further proposed that the clamping section 42 includes a vertical section 421 perpendicularly 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 card interface 31. The pressing section 422 is perpendicular to the vertical section 421. The arcuate section 423 forms an arcuate transition between the clamping section 42 and the elastic section 43. The vertical section 421 and the straight section 411 cooperate perpendicularly with each other to accurately clamp the card interface 31 of the housing 30, forming a stable mechanical connection and ensuring that the connector is not easily loosened during use. The vertical design of the pressing section 422 makes it easier for the operator to apply external force. By pressing the pressing section 422, the end of the straight section 411 exposed from the blocking portion 22 is subjected to force and elastically deformed, causing the snap-on section 42 to retract, thereby achieving rapid disassembly of the shell 30 and greatly improving the convenience of operation. The transition design of the arc section 423 enables the shell 30 to use the transition of the arc section 423 to guide the snap-on section 42 to retract when it is installed. When correctly inserted, the snap-on section 42 will be able to pass through along the card interface 31, realizing a plug-and-play operation mode. 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, which significantly improves the overall strength and rigidity of the special-shaped spring piece 40 at the clamping section 42, so that it can still maintain structural integrity during frequent elastic deformation, thereby ensuring the firm stability of the fit between the shell 30 and the connecting sleeve 20.

[0044] See also 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 inward-curving semicircular sections 431 and multiple outward-curving semicircular sections 432, and the multiple inward-curving semicircular sections 431 and the multiple outward-curving semicircular sections 432 are staggered, and a transition section 433 is provided between adjacent inward-curving semicircular sections 431 and outward-curving semicircular sections 432; the setting of the transition section 433 can improve the stability of the axial elastic deformation of the elastic section 43, that is, the elastic section 43 will not tilt to one side during the elastic deformation process, thereby being able to more stably apply axial thrust to the ferrule 50, effectively compensating for processing tolerances and external vibration influences, and further ensuring the stability of the optical fiber connection and the quality of optical signal transmission.

[0045] See also Figure 1-3On the basis of the above technical solution, it is further proposed that a threaded connection structure is provided between the connecting sleeve 20 and the tail sleeve 10, and the connecting sleeve 20 and the tail sleeve 10 are connected through the threaded connection structure, and a first sealing ring 11 is further provided between the connecting sleeve 20 and the tail sleeve 10, and the connecting sleeve 20 and the tail sleeve 10 are sealed and connected through 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 shell 30 is covered on the outside of the connecting sleeve 20 by the second sealing ring 12; the threaded connection structure realizes the rapid disassembly and assembly of the connecting 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 connecting sleeve 20 and the tail sleeve 10, effectively preventing impurities such as dust and water vapor from invading the interior of the connector, and preventing precision components such as the optical fiber and the ferrule 50 from being affected by contamination. The second sealing ring 12 on the outside of the connecting sleeve 20 is used in conjunction with the dust cap 13 to further enhance the external protection capability of the connector. When the dust cap 13 is put on the connecting sleeve 20, the second sealing ring 12 can form a sealing barrier between the dust cap 13 and the connecting sleeve 20, preventing external contaminants from entering the area between the ferrule 50 and the shell 30 when the connector is not in use, thereby protecting the end face of the ferrule 50 from being clean and ensuring the stability of optical signal transmission.

[0046] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced therein.

Claims

1. An MPO ferrule connector that achieves multi-position mating through a special-shaped spring structure, characterized in that: It comprises a tail sleeve (10), a connecting sleeve (20) fixed on the tail sleeve (10), a shell (30) butted against the connecting sleeve (20), a special-shaped spring piece (40) embedded in the connecting sleeve (20) and extending into the interior of the shell (30), and a core (50) arranged at the end of the shell (30) and butting against the special-shaped spring piece (40); The connecting sleeve (20) and the housing (30) are positioned and plugged together, so that a chamber communicating with the tail sleeve (10) is formed inside the connecting sleeve (20) and the housing (30). The special-shaped spring piece (40) is formed by bending a strip of elastic material, and the special-shaped spring piece (40) has at least two axially symmetrical sections. The special-shaped spring piece (40) has a fixed section (41), a clamping section (42), an elastic section (43) and an abutting section (44) in sequence. The fixed section (41) is embedded in the connecting sleeve (20), the clamping section (42) is an outwardly convex structure, and a section that is connected to the clamping section (42) is provided on the side of the housing (30). The card interface (31) is provided, and the card connection section (42) is inserted into the card interface (31) and works together with the fixing section (41) to fix the housing (30) on the connecting sleeve (20). The elastic section (43) is a wave-shaped structure. The abutting section (44) is the end of the elastic section (43) and is parallel to the rear end face of the plug core (50) so as to fully abut the rear end face of the plug core (50). The elastic section (43) applies an elastic force to the plug core (50). 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 plug core (50).

2. The MPO ferrule connector that realizes multi-position mating through a special-shaped spring structure according to claim 1, characterized in that: The guide post (60) is further provided with an annular groove (61) having an inner diameter corresponding to the connection notch (441) at one end thereof. The guide post (60) is connected to the abutting section (44) by docking the annular groove (61) with the connection notch (441), and the guide post (60) extends to the outside of the ferrule (50) along the positioning through hole (51).

3. The MPO ferrule connector that realizes multi-position mating through a special-shaped spring structure according to claim 1, characterized in that: A through hole (32) communicating with the chamber is provided at the end of the 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 through hole (32) communicating with the chamber, and an inclined 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 outside the shell (30) along the through hole (32), and the rear end of the ferrule (50) is formed with an abutment portion (52) along its side, and the rear end of the ferrule (50) is restricted in the chamber by abutting and matching the abutment portion (52) with the inclined transition structure (33).

4. The MPO ferrule connector that realizes multi-position mating through a special-shaped spring structure according to claim 1, characterized in that: The ferrule (50) is provided with an optical fiber through groove (53) penetrating its rear end face and a plurality of optical fiber channels (54) penetrating its front end face, 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).

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

6. The MPO ferrule connector that realizes multi-position mating through a special-shaped spring structure according to claim 1, characterized in 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) 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 that realizes multi-position mating through a special-shaped spring 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). The arcuate section (423) forms an arcuate transition between the clamping section (42) and the elastic section (43).

8. The MPO ferrule connector that realizes multi-position mating through a special-shaped spring structure according to claim 7, characterized in that: Reinforcement 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 arc section (423), and between the arc section (423) and the elastic section (43).

9. The MPO ferrule connector that realizes multi-position mating through a special-shaped spring structure according to claim 1, characterized in that: The elastic section (43) comprises a plurality of inwardly curved semicircular sections (431) and a plurality of outwardly curved semicircular sections (432), wherein 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. The MPO ferrule connector that realizes multi-position mating through a special-shaped spring 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 provided between the connecting sleeve (20) and the tail sleeve (10), the connecting sleeve (20) and the tail sleeve (10) are sealed and docked via the first sealing ring (11), a second sealing ring (12) is 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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