Optical fiber connecting device and optical fiber connecting method

Abstract

The invention discloses an optical fiber connecting device and an optical fiber connecting method, and belongs to the technical field of optical communication, and the optical fiber connecting method comprises the steps: S100, installing an optical fiber sleeve in the optical fiber connecting device, enabling a plurality of optical fibers to pass through the optical fiber sleeve, a first connecting unit and a second connecting unit, and enabling bare fiber parts of the optical fibers to be positioned in a first groove, the optical fiber cladding part is positioned in the second groove; and S200, arranging the glue in the first groove, and installing the cover plate in the installation cavity to complete the installation of the plurality of optical fibers. According to the invention, fixation and connection of optical fibers can be realized.

Description

Technical Field

[0001] The present invention belongs to the field of optical communication technology, and specifically relates to an optical fiber connection device and an optical fiber connection method. Background Art

[0002] Fiber optic communication, at the core of modern communications technology, is widely used in data centers, 5G networks, long-distance transmission, and fiber-optic sensing. Its core is to achieve efficient and stable transmission of optical signals. MT (Mechanically Transferable) ferrules, commonly used in fiber optic communications, incorporate fiber holes on the ferrule end face to secure and connect multiple optical fibers, achieving high-density, low-loss optical coupling. Due to their compact structure, ease of mass production, and multi-channel connectivity, MT ferrules have become a key component in high-density fiber optic connection systems such as MPO (Multi-fiber Push On) connectors and are widely used in high-speed optical communication networks.

[0003] Traditional MT ferrule end faces typically use a circular fiber hole design. Fiber positioning and connection are achieved by inserting the fiber into the circular hole and fixing it with adhesive. However, in practical applications, the circular fiber hole design has the following technical problems:

[0004] (1) Insufficient fiber positioning accuracy: The inner diameter of the circular hole is usually slightly larger than the outer diameter of the fiber to facilitate fiber insertion, but this will result in a small gap between the fiber and the hole wall. This small gap makes it difficult to accurately control the position of the fiber in the hole, making it prone to offset and causing misalignment of the fiber.

[0005] (2) Insufficient optical fiber fixing stability: The contact area between the circular hole and the optical fiber is limited, and the adhesive filling is uneven. The optical fiber fixing strength may be reduced due to external vibration or temperature changes. During long-term use, the optical fiber is prone to slight displacement or loosening, resulting in unstable optical signal transmission.

[0006] (3) Impact on optical communication performance: The above problems may cause loss, attenuation or instability in optical signal transmission, thereby reducing the overall reliability and stability of the optical fiber communication system.

[0007] As fiber optic communication technology evolves toward higher bandwidth, lower loss, and greater reliability, the circular fiber hole design of traditional MT ferrules can no longer meet the high stability requirements of modern optical communication systems. Therefore, there is an urgent need to develop a new type of fiber optic connector that optimizes fiber positioning accuracy and enhances fiber fixation stability. This, in turn, can improve the performance and reliability of fiber optic communication systems and adapt to diverse optical communication application scenarios. Summary of the Invention

[0008] This invention provides an optical fiber connection device and an optical fiber connection method, which are intended to partially or completely resolve the technical problems in the prior art, such as insufficient optical fiber positioning accuracy and insufficient optical fiber fixation stability, which affect the overall reliability and stability of optical communication performance. To achieve the above objectives, this invention adopts the following technical solutions:

[0009] In a first aspect, an optical fiber connection device comprises:

[0010] a first connecting unit, a second connecting unit;

[0011] Along the first direction X, the first connecting unit is connected to the second connecting unit;

[0012] The second connecting unit includes: a bottom portion, a base portion, a first connecting portion, a first side portion, and a second side portion;

[0013] Along the second direction Y, a first side portion and a second side portion are formed on both sides of the bottom;

[0014] The bottom portion is connected to the first side portion and the second side portion;

[0015] The first side portion and the second side portion are both connected to the first connecting unit;

[0016] Along the third direction Z, a base portion is provided on the bottom;

[0017] The base portion is provided with a plurality of first grooves and a plurality of second grooves;

[0018] The first groove at least positions the bare fiber portion of the optical fiber;

[0019] The second groove accommodates at least part or all of the cladding portion of the optical fiber;

[0020] A first connecting portion is provided between the first side portion and the second side portion along the second direction Y;

[0021] The first connecting portion connects the first side portion and the second side portion;

[0022] The first connecting portion is connected to the base portion;

[0023] The cladding portion of the optical fiber passes through the first connecting portion and the base portion.

[0024] Optionally, the first connection unit is provided with a through hole; along the first direction X, the optical fiber sleeve passes through the through hole and extends into the interior of the second connection unit; the optical fiber connection device also includes: a first connection hole and a second connection hole; along the first direction X, the first connection hole and the second connection hole both pass through the first connection unit and the second connection unit.

[0025] Optionally, the second connection unit also includes: a second connection portion; along the second direction Y, a second connection portion is arranged between the first side portion and the second side portion, and the second connection portion connects the first side portion, the second side portion, and the first connection unit; along the third direction Z, the second connection portion is located above the optical fiber sleeve.

[0026] Optionally, the second connecting unit further includes: a positioning portion, a positioning portion is provided on the bottom along the third direction Z; along the first direction X, the base portion is adjacent to the positioning portion, and the positioning portion limits the optical fiber sleeve; the end face of the second connecting portion is flush with the end face of the optical fiber sleeve.

[0027] Optionally, the optical fiber connection device further includes: a cover plate, the second connection unit includes an installation cavity, the base portion, the first side portion, the second side portion, and the first connection portion enclose the installation cavity, and the cover plate is located in the installation cavity.

[0028] Optionally, the first side portion and the second side portion are both perpendicular to the bottom, the first side portion and the second side portion are parallel, and the first connecting portion is perpendicular to the first side portion and the second side portion.

[0029] Optionally, the second connecting portion is perpendicular to the first side portion and the second side portion, the first connecting portion and the second connecting portion are parallel, and the first connecting portion and the base portion are parallel.

[0030] Optionally, a positioning groove is provided at the bottom of the cover plate, and the positioning groove positions the bare fiber portion of the optical fiber.

[0031] In a second aspect, a method for connecting optical fibers, using any optical fiber connection device described in the first aspect, comprises:

[0032] Step S100: The optical fiber sleeve is installed in the optical fiber connection device, and multiple optical fibers pass through the optical fiber sleeve, the first connection unit, and the second connection unit. The bare fiber portion of the optical fiber is positioned in the first groove, and the cladding portion of the optical fiber is positioned in the second groove.

[0033] Step S200: Glue is set in the first groove, and the cover plate is installed in the installation cavity to complete the installation of multiple optical fibers.

[0034] Optionally, step S100 includes:

[0035] Step S101: The optical fiber ferrule passes through the through hole and enters the second connection unit along the first direction, and the positioning portion contacts and limits the optical fiber ferrule to complete the installation of the optical fiber ferrule in the optical fiber connection device;

[0036] Step S102: multiple optical fibers pass through the optical fiber sleeve, the through hole of the first connecting unit, and the second connecting unit, with the bare fiber portion of the optical fiber positioned in the first groove and the cladding portion of the optical fiber positioned in the second groove;

[0037] And / or, step S200 includes: setting glue in the first groove, placing the cover plate in the installation cavity, the bottom surface of the cover plate in contact with the bare fiber portion, and curing the glue to bond the cover plate, the optical fiber and the base portion together.

[0038] The beneficial effects of the present invention are as follows:

[0039] (1) In the present invention, the solid structure composed of the bottom, the first side, the second side and the first connecting portion provides mechanical support to ensure that the optical fiber remains stable under external vibration or temperature changes. The design of the first groove and the second groove ensures the precise positioning of the bare fiber portion and the cladding portion, reduces positioning errors, improves the reliability of signal transmission and the durability of the device, and can support single or multiple optical fiber connections. It is suitable for a variety of scenarios from consumer-grade optical networks to high-density data centers, providing a more reliable solution for optical fiber connections.

[0040] (2) In the present application, first, in step S100, the bare fiber parts of multiple optical fibers are precisely positioned through the first groove, while the cladding parts are stably supported in the second groove. In step S200, all optical fibers are fixed at one time by glue and cover plate, thereby avoiding optical fiber deviation, improving installation efficiency, enhancing the stability of optical fibers under vibration, temperature change or mechanical shock, and ensuring long-term and reliable connection. In addition, the process design of steps S100 and S200 is simple, the positioning and bonding processes are simple to operate, and the standardized design of optical fiber sleeves, grooves and cover plates reduces complex assembly steps, reduces manufacturing and maintenance costs, is suitable for large-scale production, and supports the characteristics of multi-fiber connection, making it applicable to high-density optical fiber networks and having broad practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. 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 creative work.

[0042] Figure 1 Schematic diagram of the structure of the optical fiber connection device applied for by the present invention Figure 1 ;

[0043] Figure 2 Schematic diagram of the structure of the optical fiber connection device applied for by the present invention Figure 2 ;

[0044] Figure 3 Schematic diagram of the structure of the optical fiber connection device applied for by the present invention Figure 3 ;

[0045] Figure 4Schematic diagram of the structure of the optical fiber connection device applied for by the present invention Figure 4 ;

[0046] Figure 5 Schematic diagram of the structure of the optical fiber connection device applied for by the present invention Figure 5 ;

[0047] Figure 6 Schematic diagram of the structure of the optical fiber connection device applied for by the present invention Figure 6 ;

[0048] Figure 7 Schematic diagram of the principle of the optical fiber connection method applied for by the present invention Figure 1 ;

[0049] Figure 8 Schematic diagram of the principle of the optical fiber connection method applied for by the present invention Figure 2 ;

[0050] Figure 9 Schematic diagram of the principle of the optical fiber connection method applied for by the present invention Figure 3 ;

[0051] Figure 10 A schematic structural diagram of the cover plate applied for in the present invention;

[0052] Figure 11 A schematic structural diagram of another cover plate applied for by the present invention;

[0053] Figure 12 Schematic diagram of the principle of the optical fiber connection method applied for by the present invention Figure 4 ;

[0054] Figure 13 Application for this invention Figure 12 A is an enlarged schematic diagram;

[0055] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0056] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments; based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0057] In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "back," "left," "right," "top," "bottom," "inside," and "outside" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. To further clarify the objectives, technical solutions, and advantages of the present invention, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0058] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means one, two, or more than two, unless otherwise specifically defined.

[0059] In order to make the purpose, technical solutions and advantages of the present invention application clearer, the technical solutions in the embodiments of the present invention application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention application. Obviously, the described embodiments are only part of the embodiments of the present invention application, not all the embodiments; based on the embodiments in the present invention application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention application.

[0060] Fiber optic connector

[0061] like Figures 1 to 12 As shown, in a first aspect, an optical fiber connection device includes:

[0062] A first connecting unit 100 and a second connecting unit 200;

[0063] Along the first direction X, the first connection unit 100 is connected to the second connection unit 200;

[0064] The second connecting unit 100 includes: a bottom portion 201, a base portion 202, a first connecting portion 204, a first side portion 206 and a second side portion 207;

[0065] Along the second direction Y, a first side portion 206 and a second side portion 207 are formed on both sides of the bottom 201;

[0066] The bottom portion 201 is connected to the first side portion 206 and the second side portion 207;

[0067] The first side portion 206 and the second side portion 207 are both connected to the first connection unit 100;

[0068] Along the third direction Z, a base portion 202 is provided on the bottom portion 201;

[0069] The base portion 202 is provided with a plurality of first grooves 2021 and a plurality of second grooves 2022.

[0070] The first groove 2021 at least positions the bare fiber portion of the optical fiber 400;

[0071] The second groove 2022 accommodates at least part or all of the cladding portion of the optical fiber 400;

[0072] Along the second direction Y, a first connecting portion 204 is provided between the first side portion 206 and the second side portion 207;

[0073] The first connecting portion 204 connects the first side portion 206 and the second side portion 207;

[0074] The first connecting portion 204 is connected to the base portion 202;

[0075] The cladding portion of the optical fiber passes through the first connecting portion 204 and the base portion 202 .

[0076] In some embodiments, the first direction X is the length direction of the optical fiber connection device, the second direction Y is the width direction of the optical fiber connection device, and the third direction Z is the height direction of the optical fiber connection device. The first direction X, the second direction Y, and the third direction Z are perpendicular to each other.

[0077] In some embodiments, the first side portion 206 and the second side portion 207 are both perpendicular to the bottom 201 , the first side portion 206 and the second side portion 207 are parallel, and the first connecting portion 204 is perpendicular to the first side portion 206 and the second side portion 207 .

[0078] In some embodiments, the bottom 201 is the base portion of the second connection unit 200 . The bottom 201 may be a rectangular flat plate extending along a first direction X (length direction) and a second direction Y (width direction) to provide support for the optical fiber connection device.

[0079] In some embodiments, along the second direction Y, a first side portion 206 and a second side portion 207 are respectively provided on both sides of the bottom 201. The first side portion 206 and the second side portion 207 are perpendicular to the bottom 201, extend upward along the third direction Z (height direction), and are parallel to each other to form a U-shaped cross-section.

[0080] In some embodiments, the first connection unit 100 and the second connection unit 200 can be formed integrally or separately, and the first side portion 206 and the second side portion 207 are both connected to the first connection unit 100 to ensure the integrity of the optical fiber connection device.

[0081] In some embodiments, the base portion 202 is provided on the bottom portion 201 and is raised along the third direction Z. The base portion 202 is a key component for positioning and fixing the optical fiber. The base portion 202 is provided with a plurality of first grooves 2921 and a plurality of second grooves 2022. Specifically:

[0082] The first groove 2021 can position the bare fiber part of the optical fiber 400 (i.e., the optical fiber core after stripping the optical fiber cladding). The groove is narrow to ensure the accurate positioning of the bare fiber part; the second groove 2022 can accommodate part or all of the cladding part of the optical fiber 400 (i.e., the optical fiber part with a protective layer). The groove is wide to provide sufficient space for the cladding part, avoid excessive pressure or bending, and reduce the risk of optical fiber damage.

[0083] In some embodiments, the first connecting portion 204 is disposed between the first side portion 206 and the second side portion 207 along the second direction Y, perpendicular to and connecting the two side portions, forming a bridge-like structure. Furthermore, the first connecting portion 204 is connected to the base portion 202, and the cladding portion of the optical fiber 400 passes through the first connecting portion 204 and the base portion 202. The first connecting portion 204 positions the cladding portion of the optical fiber, thereby achieving overall positioning and installation stability of the optical fiber in the optical fiber connection device.

[0084] In some embodiments, the bare fiber portion is placed in the first groove 2021 of the base portion 202 to ensure its positioning. Part or all of the cladding portion can be placed in the second groove 2022. The loose groove design avoids stress or bending on the optical fiber. The first connecting portion 204 cooperates with the base portion 202 to fix the optical fiber. The first connecting portion 204 positions the cladding portion to appropriately prevent it from moving along the third direction Z. The cladding portion can move along the first direction X. The first side portion 206 and the second side portion 207 provide lateral support. The first connecting unit 100 and the second connecting unit 200 are connected along the first direction X to position the optical fiber in the first connecting unit. After the optical fiber is positioned, the optical signal can be transmitted through the bare fiber portion.

[0085] In the present application, the solid structure formed by the bottom 201, the first side 206, the second side 207 and the first connecting part 204 provides mechanical support to ensure that the optical fiber remains stable under external vibration or temperature changes. The design of the first groove 2021 and the second groove 2022 ensures the positioning of the bare fiber part and the cladding part, reduces positioning errors, improves the reliability of signal transmission and the durability of the device, can support single or multiple optical fiber connections, and is suitable for a variety of scenarios from consumer-grade optical networks to high-density data centers, providing a more reliable solution for optical fiber connections.

[0086] Optionally, the first connection unit 100 is provided with a through hole 101; along the first direction X, the optical fiber sleeve 500 passes through the through hole 101 and extends to the interior of the second connection unit 100; the optical fiber connection device also includes: a first connection hole 301 and a second connection hole 302; along the first direction X, the first connection hole 301 and the second connection hole 302 both pass through the first connection unit 100 and the second connection unit 200.

[0087] In some embodiments, the optical fiber sleeve 500 can install multiple optical fibers 400, and multiple optical fibers 400 can pass through the optical fiber sleeve 500; the optical fiber sleeve 500 can pass through the through hole 101 of the first connecting unit 100 and extend to the interior of the second connecting unit 200 to provide installation and protection for the optical fiber 400 to prevent the optical fiber from bending or damage.

[0088] In some embodiments, the first connection unit 100 and the second connection unit 200 can be connected to other components through the first connection hole 301 and the second connection hole 302 using fasteners or alignment elements to ensure the overall connectability of the optical fiber connection device.

[0089] In the present application, the through hole 101 can be adapted to the optical fiber sleeve 500, and the optical fiber sleeve 500 can provide appropriate protection to reduce the risk of mechanical damage to the optical fiber during connection or use. The through hole 101 facilitates the installation of the optical fiber sleeve 500. The design of the first connecting hole and the second connecting hole simplifies the assembly process, reduces manufacturing and maintenance costs, supports single-fiber and multi-fiber configurations, meets various application requirements, and improves the adaptability of the optical fiber connection device.

[0090] Optionally, the second connecting unit 100 further includes: a second connecting portion 205, which is disposed between the first side portion 206 and the second side portion 207 along the second direction Y, and connects the first side portion 206, the second side portion 207, and the first connecting unit 100; and along the third direction Z, the second connecting portion 205 is located above the optical fiber sleeve 500;

[0091] In some embodiments, the second connection portion 205 is perpendicular to the first side portion 206 and the second side portion 207 , the first connection portion 204 and the second connection portion are parallel to 205 , and the first connection portion 205 and the base portion 202 are parallel.

[0092] In the present application, the second connecting portion 205 is arranged between the first side portion 206 and the second side portion 207 along the second direction Y, and connects these two parts and the first connecting unit 100, thereby enhancing the overall rigidity of the optical fiber connection device; along the third direction Z, the second connecting portion 205 is located above the optical fiber sleeve 500, which can limit the optical fiber sleeve 500, reduce the vibration of the optical fiber sleeve 500 in the optical fiber connection device, and ensure the stability of the optical fiber positioning.

[0093] Optionally, the second connecting unit 200 also includes: a positioning portion 203, along the third direction Z, a positioning portion 203 is provided on the bottom 201; along the first direction X, the base portion 202 is adjacent to the positioning portion 203, and the positioning portion 203 limits the optical fiber sleeve 500; the end face of the second connecting portion 205 is flush with the end face of the optical fiber sleeve.

[0094] In some embodiments, the positioning portion 203 may be designed as a protruding structure, which together with the base portion 202 forms a stable support and positioning system for supporting the optical fiber cladding portion and positioning the optical fiber sleeve 500 .

[0095] In the application of the present invention, during the installation process of the optical fiber sleeve 500, the positioning portion 203 can limit the optical fiber sleeve 500 in the first direction X through the geometric shape of the positioning portion 203, thereby limiting the movement of the optical fiber sleeve 500 in the first direction X; at the same time, the end face of the second connecting portion 205 is flush with the end face of the optical fiber sleeve 500, thereby limiting the movement of the optical fiber sleeve 500 in the third direction Z, thereby avoiding displacement during installation or use. The optical fiber sleeve 500 can maintain a stable position, thereby improving the reliability of the optical fiber connection.

[0096] Optionally, the optical fiber connection device further includes: a cover plate 600 , the second connection unit 100 includes an installation cavity 208 , the base portion 202 , the first side portion 206 , the second side portion 207 , and the first connection portion enclose the installation cavity 208 , and the cover plate 600 is located in the installation cavity 208 .

[0097] In some embodiments, as Figures 9 to 12 As shown, the mounting cavity 208 is a rectangular space enclosed by the base 202, the first side 206, the second side 207 and the first connecting portion 204. The base 202 is provided with a first groove 2021 and a second groove 2022 for positioning the bare fiber portion and the cladding portion of the optical fiber 400, respectively.

[0098] In some embodiments, the cover plate 600 is located in the mounting cavity 208 and can be designed as a flat plate-shaped structure whose size matches the inner wall of the mounting cavity 208. The bottom surface of the cover plate 600 contacts the bare fiber portion of the base 202.

[0099] In some embodiments, before the cover plate 600 is installed, the bare fiber portion of the optical fiber 400 is placed in the first groove 2021, and then optical glue is provided on the bare fiber portion and / or the first groove 2021. The cover plate 600 is placed in the installation cavity 208 and appropriate pressure is applied so that its bottom surface is in close contact with the bare fiber portion. The glue is fixed after curing. The glue bonding process is simple and efficient, suitable for large-scale production, and reduces manufacturing complexity and cost.

[0100] In the present application, the cover plate 600 is installed in the installation cavity 208, and its bottom surface is in contact with the bare fiber part. The glue is cured under ultraviolet light irradiation or natural curing conditions, and the cover plate 600, the optical fiber (bare fiber part) and the base part 202 are firmly bonded together. It not only fixes the bare fiber part of the optical fiber and prevents it from moving in the first groove 2021, but also ensures the position stability of the bare fiber part in the first groove 2021 and prevents the displacement of the optical fiber under vibration or temperature changes. The closed structure of the cover plate installation cavity can also protect the optical fiber from the influence of the external environment, thereby improving the long-term stability and reliability of optical transmission.

[0101] Optionally, a positioning groove 601 is provided at the bottom of the cover plate 600, and the positioning groove 601 positions the bare fiber portion of the optical fiber.

[0102] In some embodiments, as Figures 10 to 12 As shown, one or more positioning grooves can be provided at the bottom of the cover plate 600. The shape of the positioning groove 601 can be V-shaped, U-shaped or arc-shaped. The positioning groove 601 can position the bare fiber part of the optical fiber. The positioning groove 601 can cooperate with the first groove 2021 on the base part 202 to position the bare fiber part of the optical fiber 400.

[0103] In the present application, the bare fiber part is placed in the first groove 2021, the positioning groove 601 is aligned with the bare fiber part, and the positioning groove 601 cooperates with the first groove 2021 to prevent the movement of the optical fiber 400, fix the bare fiber part of the optical fiber, and ensure the position stability of the bare fiber part in the first groove 2021.

[0104] Fiber optic connection method

[0105] like Figures 7 to 13 As shown, in a second aspect, a fiber optic connection method adopts any fiber optic connection device described in the first aspect, comprising:

[0106] It should be noted that the present invention applies for a fiber optic connection method, which adopts a fiber optic connection device described in any one of the first aspects above, and accordingly also includes: all the technical problems, technical solutions and technical effects recorded in any one of the fiber optic connection devices in the first aspect, and the present invention application will not be repeated here.

[0107] Step S100: The optical fiber sleeve 500 is installed in the optical fiber connection device. Multiple optical fibers pass through the optical fiber sleeve, the first connection unit 100, and the second connection unit 200. The bare fiber portion of the optical fiber is positioned in the first groove 2021, and the cladding portion of the optical fiber is positioned in the second groove 2022.

[0108] Specifically, step S100 includes:

[0109] Step S101: The optical fiber ferrule 500 passes through the through hole 101 and enters the second connection unit 200 along the first direction. The positioning portion 203 contacts and limits the optical fiber ferrule 500, thereby completing the installation of the optical fiber ferrule 500 in the optical fiber connection device C.

[0110] In some embodiments, the optical fiber ferrule 500 passes through the through hole 101. The through hole 101 is located on the first connecting unit 100 and extends through the first direction X. Since the first connecting unit 100 is docked with the second connecting unit 200, the optical fiber ferrule 500 is inserted through the through hole 101 and enters the interior of the second connecting unit 200 along the first direction X. The diameter of the through hole 101 can be slightly larger than the outer diameter of the optical fiber ferrule 500 to ensure smooth passage of the optical fiber ferrule 500 while providing a certain degree of guidance.

[0111] In some embodiments, the positioning portion 203 is disposed on the bottom 201 of the second connecting unit 200, protruding along the third direction Z and abutting the base portion 202 along the first direction X. The positioning portion 203 is designed as a stopper, whose end face contacts the end face of the optical fiber ferrule 500, forming a mechanical stop. The surface of the stopper can be flat or curved to adapt to the shape of the optical fiber ferrule 500 and ensure stable contact.

[0112] In step S100, during installation, after the optical fiber ferrule 500 passes through the through hole 101, its front end gradually approaches the positioning portion 203. When the end face of the optical fiber ferrule 500 contacts the limiting surface of the positioning portion 203, the positioning portion 203 prevents the optical fiber ferrule 500 from continuing to advance in the first direction X, thereby achieving precise positioning and fixation of the optical fiber ferrule 500 in the optical fiber connection device, avoiding optical fiber alignment errors caused by position deviation of the optical fiber ferrule 500, and thus improving the positioning accuracy of the bare optical fiber portion.

[0113] In step S100, the guiding function of the through hole 101 and the limiting function of the positioning part 203 simplify the installation process of the optical fiber sleeve 500. The operator only needs to insert the sleeve into the through hole and push it to the positioning part to complete the installation, which reduces the difficulty of assembly. The limiting function of the positioning part 203 and the second connecting part 205 enables the optical fiber sleeve 500 to resist the influence of external vibration after installation and maintain a stable position.

[0114] Step S102: Multiple optical fibers pass through the optical fiber sleeve, the through hole of the first connecting unit 100, and the second connecting unit 200, with the bare fiber portion of the optical fiber positioned in the first groove 2021 and the cladding portion of the optical fiber positioned in the second groove 2022;

[0115] In some embodiments, the cladding portion (the portion of the optical fiber with a protective layer) of the optical fiber 400 is partially or entirely positioned in the second groove 2022 on the base portion 202. The second groove 2022 is also arranged along the first direction X, but its width and depth are greater than the first groove 2021 to accommodate the larger diameter of the cladding portion.

[0116] In some embodiments, the bare fiber portion of the optical fiber 400 (i.e., the core portion after the cladding is removed) is positioned on the base portion 202 of the second connection unit 200. The base portion 202 is provided with a plurality of first grooves 2021. Each first groove 2021 is arranged along the first direction X and has a V- or U-shaped design to accommodate the diameter of the bare fiber portion. An operator can place the bare fiber portion of each optical fiber into the corresponding first groove 2021 to ensure that the bare fiber portion is positioned along the first direction X.

[0117] During installation, in step S200, the outer protective layers of multiple optical fibers 400 are first stripped to expose the bare fiber portion and the cladding portion. The optical fibers then pass through the fiber ferrule 500 and the through hole 101, entering the second connection unit 200. The bare fiber portion and the cladding portion of each optical fiber are placed in the first groove 2021 and the second groove 2022, respectively, ensuring stable positioning of the optical fibers on the base 202.

[0118] In step S200, the design of the first groove 2021 ensures the positioning of the bare fiber part in the first direction X, and the design of the second groove 2022 ensures the positioning of the cladding part in the first direction X. A plurality of first grooves 2021 and second grooves 2022 are provided on the base part 202 to support the threading and positioning process of multiple optical fibers 400. The operator can quickly complete the installation, reduce the difficulty and time cost of assembly, ensure the reliability and stability of multi-channel optical communication, and is suitable for high-density optical fiber connection scenarios.

[0119] Step S200: Glue is placed in the first groove, and the cover plate 600 is installed in the installation cavity 208 to complete the connection of multiple optical fibers.

[0120] Specifically, step S200 includes: setting glue in the first groove, placing the cover plate 600 in the installation cavity 208, the bottom surface of the cover plate 600 contacts the bare fiber part, and curing the glue to bond the cover plate 600, the optical fiber 400 and the base part 202 together.

[0121] In some embodiments, optical glue (e.g., UV-curable glue or epoxy resin glue) is applied to the first groove 2021 of the base portion 202. The glue is applied to the first groove 2021, contacts the bare fiber portion, and performs a bonding and filling function. The glue covers the bare fiber portion surfaces of the multiple optical fibers 400. The cover plate 600 is designed as a flat plate-shaped structure that matches the dimensions of the installation cavity 208 and is placed into the installation cavity 208 along the second direction Y and the third direction Z. Before installation, confirm that the positioning groove 601 of the cover plate 600 is aligned with the bare fiber portion in the first groove 2021 to ensure accurate coverage.

[0122] In some embodiments, when the cover plate 600 is placed, its bottom surface contacts the bare fiber portion of the optical fiber 400. The operator can apply slight pressure to evenly distribute the glue and fill the gap between the bare fiber portion and the cover plate 600. The positioning groove 601 assists in fixing the bare fiber portion to prevent displacement. The glue can be cured by ultraviolet light irradiation (if ultraviolet light curing glue is used) or natural curing (if epoxy resin glue is used) to complete the curing process. After curing, the cover plate 600, the bare fiber portion of the optical fiber 400 and the base portion 202 form an integrated bonding structure, completing the fixed connection of multiple optical fibers.

[0123] In step S200, the glue is cured to bond the cover plate 600, the bare fiber part and the base part 202 into one, preventing the optical fiber from shifting under vibration or temperature changes, ensuring long-term stable optical fiber connection. The coordinated design of the positioning groove 601 and the first groove 2021 combined with glue bonding ensures high-precision positioning of the bare fiber part in the first direction X, supports the simultaneous bonding and fixation of multiple optical fibers, and is suitable for high-density optical fiber connection scenarios.

[0124] In the optical fiber connection method applied for in the present invention, first, step S100 precisely positions the bare fiber parts of multiple optical fibers through the first groove, and at the same time the cladding parts are stably supported in the second groove. Step S200 fixes all optical fibers at one time through glue and a cover plate, thereby avoiding optical fiber deviation, improving installation efficiency, and enhancing the stability of optical fibers under vibration, temperature changes or mechanical shocks, ensuring long-term and reliable connection; in addition, the process design of steps S100 and S200 is simple, the positioning and bonding processes are simple to operate, and the standardized design of optical fiber sleeves, grooves and cover plates reduces complex assembly steps, reduces manufacturing and maintenance costs, is suitable for large-scale production, and supports the characteristics of multi-fiber connection, making it applicable to high-density optical fiber networks and having broad practical value.

[0125] The technical features of the above embodiments can be combined arbitrarily. To simplify the description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction between the combinations of these technical features, they should be considered to be within the scope of this specification.

[0126] Those skilled in the art will understand that the various operations, methods, steps, measures, and schemes discussed in the present application may be interchanged, modified, combined, or deleted; further, other steps, measures, and schemes in the various operations, methods, and schemes discussed in the present application may also be interchanged, modified, rearranged, decomposed, combined, or deleted; further, the various operations, methods, and steps, measures, and schemes in the prior art that are similar to those disclosed in the present application may also be interchanged, modified, rearranged, decomposed, combined, or deleted;

[0127] The above-described embodiments only express several implementation methods of the embodiments of the present disclosure, and their descriptions are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the embodiments of the present disclosure. It should be pointed out that for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the embodiments of the present disclosure, and these all fall within the scope of protection of the embodiments of the present disclosure. Therefore, the scope of protection of the embodiments of the present disclosure should be based on the attached claims.

Claims

1. An optical fiber connection device, characterized in that: include: a first connecting unit, a second connecting unit; Along the first direction X, the first connecting unit is connected to the second connecting unit; The second connecting unit includes: a bottom portion, a base portion, a first connecting portion, a first side portion, and a second side portion; Along the second direction Y, a first side portion and a second side portion are formed on both sides of the bottom; The bottom portion is connected to the first side portion and the second side portion; The first side portion and the second side portion are both connected to the first connecting unit; Along the third direction Z, a base portion is provided on the bottom; The base portion is provided with a plurality of first grooves and a plurality of second grooves; The first groove at least positions the bare fiber portion of the optical fiber; The second groove accommodates at least part or all of the cladding portion of the optical fiber; A first connecting portion is provided between the first side portion and the second side portion along the second direction Y; The first connecting portion connects the first side portion and the second side portion; The first connecting portion is connected to the base portion; The cladding portion of the optical fiber passes through the first connecting portion and the base portion.

2. The optical fiber connection device according to claim 1, characterized in that: The first connection unit is provided with a through hole; along the first direction X, the optical fiber sleeve passes through the through hole and extends into the interior of the second connection unit; the optical fiber connection device also includes: a first connection hole and a second connection hole; along the first direction X, the first connection hole and the second connection hole both pass through the first connection unit and the second connection unit.

3. The optical fiber connection device according to claim 2, characterized in that: The second connection unit also includes: a second connection portion; along the second direction Y, the second connection portion is arranged between the first side portion and the second side portion, and the second connection portion connects the first side portion, the second side portion, and the first connection unit; along the third direction Z, the second connection portion is located above the optical fiber sleeve.

4. The optical fiber connection device according to claim 2, characterized in that: The second connecting unit also includes: a positioning portion, which is provided on the bottom along the third direction Z; along the first direction X, the base portion is adjacent to the positioning portion, and the positioning portion limits the optical fiber sleeve; the end face of the second connecting portion is flush with the end face of the optical fiber sleeve.

5. The optical fiber connection device according to claim 1, characterized in that: The optical fiber connection device further includes a cover plate. The second connection unit includes an installation cavity. The base portion, the first side portion, the second side portion, and the first connection portion enclose the installation cavity. The cover plate is located in the installation cavity.

6. The optical fiber connection device according to claim 5, characterized in that: The first side portion and the second side portion are both perpendicular to the bottom portion, the first side portion and the second side portion are parallel, and the first connecting portion is perpendicular to the first side portion and the second side portion.

7. The optical fiber connection device according to claim 5, characterized in that: The second connecting portion is perpendicular to the first side portion and the second side portion, the first connecting portion and the second connecting portion are parallel, and the first connecting portion and the base portion are parallel.

8. The optical fiber connection device according to claim 5, characterized in that: A positioning groove is provided at the bottom of the cover plate to position the bare fiber portion of the optical fiber.

9. A method for connecting optical fibers, using the optical fiber connection device according to any one of claims 5 to 8, comprising: Step S100: The optical fiber sleeve is installed in the optical fiber connection device, and multiple optical fibers pass through the optical fiber sleeve, the first connection unit, and the second connection unit. The bare fiber portion of the optical fiber is positioned in the first groove, and the cladding portion of the optical fiber is positioned in the second groove. Step S200: Glue is set in the first groove, and the cover plate is installed in the installation cavity to complete the installation of multiple optical fibers.

10. The optical fiber connection method according to claim 9, characterized in that: Step S100 includes: Step S101: The optical fiber ferrule passes through the through hole and enters the second connection unit along the first direction, and the positioning portion contacts and limits the optical fiber ferrule to complete the installation of the optical fiber ferrule in the optical fiber connection device; Step S102: multiple optical fibers pass through the optical fiber sleeve, the through hole of the first connecting unit, and the second connecting unit, with the bare fiber portion of the optical fiber positioned in the first groove and the cladding portion of the optical fiber positioned in the second groove; And / or, step S200 includes: setting glue in the first groove, placing the cover plate in the installation cavity, the bottom surface of the cover plate in contact with the bare fiber portion, and curing the glue to bond the cover plate, the optical fiber and the base portion together.

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