Data center high-density ceramic ferrule and optical fiber connector

Abstract

The utility model relates to the technical field of optical fiber accessories, and discloses a data center high-density ceramic ferrule and an optical fiber connector, which comprise a ferrule cylinder provided with a fiber penetrating hole channel for penetrating an optical fiber; and the tail handle is provided with an assembling hole for inserting a core inserting column body and a limiting hole for the optical fiber to penetrate through, the limiting hole is communicated with the assembling hole, and when the core inserting column body is inserted into the assembling hole, the limiting hole is communicated with the fiber penetrating hole channel and limits the optical fiber to rotate and move along the hole wall of the fiber penetrating hole channel. According to the utility model, the optical fiber and the insertion core cylinder can be ensured to be in a correct butt joint position when being connected, so that the operation of rotating debugging is omitted, and the convenience of assembling the optical fiber and the insertion core cylinder is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of optical fiber accessories, and in particular relates to a high-density ceramic ferrule and an optical fiber connector for a data center. Background Art

[0002] Fiber optic connectors are devices that make detachable connections between optical fibers. Through precise docking of optical fibers, fiber optic connectors can maximize the coupling of light energy output by the transmitting optical fiber to the receiving optical fiber, reducing the impact on the system caused by its involvement in the optical link. Existing fiber optic connectors usually include ceramic ferrules, which are one of the core components of fiber optic connectors and play an important role in fixing the optical fiber and ensuring the stability and accuracy of the connection.

[0003] The existing ceramic ferrule includes a ferrule column with a fiber threading channel. When the optical fibers are connected, the cable is stripped to expose the optical fibers, and the optical fibers pass through the fiber threading channel to realize the assembly of the ceramic ferrule and the optical fibers.

[0004] However, referring to Fig. 9 When multiple optical fibers pass through the fiber threading channel, the optical fibers are prone to rotational displacement in the fiber threading channel. At this time, the optical fibers usually cannot be directly docked, and rotation adjustment is required to make the multiple optical fiber bundles in a horizontally distributed docking position, which makes the assembly process of the optical fiber and the core column inconvenient. Utility Model Content

[0005] In order to address the deficiencies of the prior art, the utility model provides a high-density ceramic ferrule and fiber optic connector for a data center. The limit hole restricts the rotational displacement of the optical fiber along the fiber passage channel. The correct docking position can be ensured when the optical fiber is connected to the ferrule column, thereby omitting the rotation and debugging operation, which is beneficial to improving the convenience of assembling the optical fiber and the ferrule column.

[0006] The technical effects to be achieved by the utility model are achieved through the following technical aspects:

[0007] In the first aspect, the utility model provides a high-density ceramic ferrule for a data center, comprising a ferrule column, which is provided with a fiber threading channel for inserting an optical fiber; and a tail handle, which is provided with an assembly hole for inserting the ferrule column, and a limiting hole for the optical fiber to pass through, wherein the limiting hole is connected to the assembly hole, and when the ferrule column is inserted into the assembly hole, the limiting hole is connected to the fiber threading channel and limits the rotational displacement of the optical fiber along the hole wall of the fiber threading channel.

[0008] In some implementations, the tail handle forms a first limiting surface and a second limiting surface in the limiting hole, the first limiting surface and the second limiting surface are arranged relatively parallel, and the first limiting surface and the second limiting surface are respectively in contact with corresponding sides of the optical fiber.

[0009] In some implementations, the cross-section of the limiting hole is square.

[0010] In some implementations, the ferrule column includes an entry end and an exit end, the entry end and the exit end are arranged along the penetration direction of the optical fiber, and the aperture of the fiber passageway at the entry end is larger than the aperture of the fiber passageway at the exit end.

[0011] In a second aspect, the utility model provides an optical fiber connector, comprising the data center high-density ceramic ferrule described above, wherein the outer sleeve of the data center high-density ceramic ferrule is provided with a front sleeve and a tail sleeve, and the front sleeve is detachably connected to the tail sleeve.

[0012] In some implementations, the tail handle includes a fiber insertion portion, the limiting hole is formed on the fiber insertion portion; and an assembly portion located at one side of the fiber insertion portion, the assembly hole is formed on the assembly portion.

[0013] In some implementations, a mounting cavity for accommodating the mounting portion is formed inside the front sleeve, and the mounting cavity is adapted to the mounting portion.

[0014] In some implementations, a limiting member for limiting the movement of the tail handle is provided between the front sleeve and the assembly portion.

[0015] In some implementations, the front sleeve has a slot on the inner wall of the installation cavity, the limiter includes a key, the key is provided on the assembly portion, and the front sleeve is engaged with the key at the slot.

[0016] In some implementations, an elastic member is disposed between the assembly portion and the tail sleeve, and the elastic member presses the assembly portion against an inner wall of the installation cavity.

[0017] In summary, the utility model has at least the following benefits:

[0018] 1. The utility model provides a high-density ceramic ferrule for a data center. Before the optical fiber and the ferrule column are assembled, the ferrule column is inserted into the assembly hole, the limit hole is connected to the fiber threading channel, the optical fiber passes through the limit hole to the fiber threading channel, and the optical fiber and the ferrule column are connected. Among them, the limit hole limits the rotation and displacement of the optical fiber along the hole wall of the fiber threading channel, and the optical fiber maintains the correct docking position when passing through the limit hole. The operator does not need to rotate and debug the optical fiber separately. The setting of the tail handle is conducive to improving production efficiency and facilitating the production of ceramic ferrule standard parts.

[0019] 2. The utility model provides an optical fiber connector, wherein the optical fiber is inserted into the tail sleeve, the tail handle and the ferrule column in sequence, and then the ferrule column and the tail handle are inserted into the front sleeve, and the front sleeve is connected to the tail sleeve, and the optical fiber connector is assembled, which is convenient to operate. At this time, when multiple optical fibers are connected, the position for direct docking can be guaranteed, and the optical fibers are precisely docked, which is conducive to improving the quality and efficiency of optical fiber communication. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The utility model is a schematic diagram of the overall structure of a high-density ceramic ferrule for a data center according to a specific embodiment of the utility model.

[0021] Figure 2 It is a schematic cross-sectional view of the AA plane of the core insert column of a specific embodiment of the utility model.

[0022] Figure 3 It is a front view of the insert column of a specific embodiment of the utility model.

[0023] Figure 4 It is a schematic cross-sectional view of the tail handle on the AA plane according to a specific embodiment of the utility model.

[0024] Figure 5 This is a front view of two optical fibers inserted into the tail handle of Example 2 of the utility model.

[0025] Figure 6 This is a front view of four optical fibers inserted into the tail handle of Example 2 of the utility model.

[0026] Figure 7 The utility model is a schematic diagram of the overall structure of the tail handle and the front cover according to a specific embodiment of the present invention.

[0027] Figure 8 The figure is a schematic diagram of the overall structure of an optical fiber connector according to a specific embodiment of the utility model.

[0028] Fig. 9 This is the front view of the optical fiber passing through the traditional ferrule column.

[0029] Markings in the figure:

[0030] 1. Insertion column; 11. Fiber insertion channel; 12. Insertion end; 13. Exit end;

[0031] 2. Tail handle; 21. Assembly hole; 22. Limiting hole; 221. First limiting surface; 222. Second limiting surface; 23. Fiber insertion part; 24. Assembly part; 241. Key;

[0032] 3. front cover; 31. mounting cavity; 32. card slot;

[0033] 4. Tail sleeve; 41. Elastic member; 42. Connecting sleeve; 43. Outer sheath;

[0034] 5. Optical fiber. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. The described implementation is a part of the implementation of the utility model, not all of the implementations.

[0036] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0037] Embodiment 1:

[0038] Please refer to the attached Figure 1-4 The utility model discloses a high-density ceramic ferrule for a data center, comprising a ferrule column 1 and a tail handle 2, wherein the ferrule column 1 and the tail handle 2 are detachably connected.

[0039] Among them, a fiber threading channel 11 is opened through the core column 1. Specifically, the fiber threading channel 11 is a through hole opened along the axial direction of the core column 1. In a preferred embodiment, the core column 1 includes an entry end 12 and an exit end, and the entry end and the exit end are arranged along the penetration direction of the optical fiber 5. The optical fiber 5 enters the core column 1 from the entry end 12 and exits from the exit end, and the optical fiber 5 is assembled with the core column 1.

[0040] The aperture of the fiber insertion hole 11 at the insertion end 12 is larger than the aperture of the fiber insertion hole 11 at the exit end. Specifically, the fiber insertion hole 11 forms a conical hole at the insertion end 12, and the aperture of the fiber insertion hole 11 at the insertion end 12 gradually decreases along the insertion direction of the optical fiber 5 to be equal to the aperture at the exit end. The fiber insertion hole 11 forms a cylindrical hole opened along the axial direction of the ferrule column 1 at the exit end. The fiber insertion hole 11 can guide the optical fiber 5 to smoothly penetrate into the ferrule column 1, thereby improving the smoothness of fiber insertion.

[0041] The tail handle 2 is located on one side of the core plug column 1 along the axial direction, and an assembly hole 21 is provided on the tail handle 2. Specifically, the assembly hole 21 is a circular through hole. The core plug column 1 is inserted into the tail handle 2 at the assembly hole 21, and the core plug column 1 and the tail handle 2 are snap-fitted. A limiting hole 22 is provided on the side of the tail handle 2 away from the core plug column 1. The limiting hole 22 is connected to the assembly hole 21. When the core plug column 1 is connected to the tail handle 2, the limiting hole 22 is connected to the fiber insertion channel 11. When the optical fiber 5 is inserted into the limiting hole 22, the limiting hole 22 can limit the rotation and displacement of the optical fiber 5 along the hole wall of the fiber insertion channel 11. The multiple optical fibers 5 in the limiting hole 22 are arranged in the horizontal direction, and the optical fiber 5 bundles ensure the correct docking position.

[0042] Before the optical fiber 5 is inserted into the fiber insertion hole 21, the ferrule column 1 is inserted into the assembly hole 21 to connect the ferrule column 1 with the tail handle 2. The multiple optical fibers 5 are inserted into the fiber insertion channel 11 from the limiting hole 22 in parallel. The multiple optical fibers 5 are inserted from the insertion end 12 of the ferrule column 1 and then penetrate the ferrule column 1 from the exit end. The limiting hole 22 limits the rotational displacement of the multiple optical fibers 5 along the hole wall of the fiber insertion channel 11. The multiple optical fibers 5 ensure the correct docking position so that the multiple optical fibers 5 can be directly docked. The optical fibers 5 do not need to be subsequently rotated and debugged, which is conducive to improving the convenience of the fiber insertion operation of the optical fibers 5.

[0043] Embodiment 2:

[0044] The difference between this embodiment and embodiment 1 is that, please refer to the attached Figure 5 and Figure 6 The limiting hole 22 of this embodiment includes a first limiting surface 221 and a second limiting surface 222, which are distributed in the vertical direction and are relatively parallel. The first limiting surface 221 and the second limiting surface 222 are respectively fitted with the corresponding sides of the optical fiber 5, that is, the distance between the first limiting surface 221 and the second limiting surface 222 is equal to the diameter of the optical fiber 5, and the first limiting surface 221 and the second limiting surface 222 cooperate to limit the insertion position of the optical fiber 5.

[0045] As shown in some specific embodiments, two optical fibers 5 are arranged in the horizontal direction and penetrate into the limiting hole 22, the distance between the first limiting surface 221 and the second limiting surface 222 is W1, the diameter of the optical fiber 5 is d, and when W1=d, it is difficult for the optical fiber 5 bundle to rotate and shift along the hole wall of the fiber threading channel 11. It can be understood that this is not a specific limitation on the number of optical fibers 5 to be inserted, and technicians in the relevant field can make replacements on this basis. In other embodiments, four optical fibers 5 are arranged in an array to form two rows to penetrate into the limiting hole 22, the distance between the first limiting surface 221 and the second limiting surface 222 is W2, and the height of the two optical fibers 5 after superposition is 2d. When W2-=2d, it is difficult for the optical fiber 5 bundle to rotate and shift along the hole wall of the fiber threading channel 11.

[0046] Furthermore, the cross-section of the limiting hole 22 is square, and the limiting hole 22 can limit the rotational displacement of the optical fiber 5 bundle along the hole wall of the fiber passage channel 11. When multiple optical fibers 5 pass through the limiting hole 22, they are in the correct docking position, which is beneficial to improving the accuracy of the docking of optical fibers 5 and 5, and facilitates the production of ceramic ferrule standard parts.

[0047] Embodiment 3:

[0048] The difference between this embodiment and the first embodiment is that the tail handle 2 of this embodiment is provided with a positioning groove on the hole wall of the limiting hole 22, and the positioning groove is specifically a U-shaped groove. When the optical fiber 5 is inserted into the ferrule column 1 through the positioning groove, the opening of the positioning groove plays a certain limiting role on the optical fiber 5, which can limit the rotational displacement of the optical fiber 5 bundle along the hole wall of the fiber insertion channel 11, and make the optical fiber 5 in the correct docking position when passing through the limiting hole 22, which is conducive to improving the convenience of operation.

[0049] Embodiment 4:

[0050] This embodiment provides an optical fiber 5 connector based on the above embodiment. Figure 7 and Figure 8 .

[0051] An optical fiber 5 connector comprises the above-mentioned data center high-density ceramic ferrule, the outer sleeve of the data center high-density ceramic ferrule is provided with a front sleeve 3 and a rear sleeve 4, and the front sleeve 3 and the rear sleeve 4 are detachably connected.

[0052] Among them, the tail handle 2 includes an assembly part 24 and a fiber insertion part 23. In a preferred embodiment, the fiber insertion part 23 is a horizontally arranged column, and the limiting hole 22 is opened at one end of the fiber insertion part 23 along the axial direction and passes through the fiber insertion part 23. The assembly part 24 is located on one side of the fiber insertion part 23 in the axial direction. The assembly part 24 is specifically a square shape, and the assembly hole 21 is opened at one end of the assembly part 24 away from the fiber insertion part 23 and is connected to the limiting hole 22.

[0053] In a preferred embodiment, a mounting cavity 31 is formed inside the front sleeve 3. Specifically, the mounting cavity 31 is a square cavity that is compatible with the assembly portion 24. When the tail handle 2 is inserted into the front sleeve 3, the assembly portion 24 is located in the mounting cavity 31. The front sleeve 3 limits the movement of the assembly portion 24 in the mounting cavity 31, and the assembly portion 24 is difficult to move freely in the mounting cavity 31. The tail handle 2 can maintain the correct docking position, and the optical fibers 5 can be precisely docked with each other.

[0054] In a preferred embodiment, a limiting member is provided between the front sleeve 3 and the tail handle 2, and the front sleeve 3 is provided with a slot 32 on the inner wall of the installation cavity 31, and specifically, the slot 32 is a long strip groove. The limiting member includes a key 241, which is specifically a convex strip adapted to the slot 32 and is located on both sides of the assembly portion 24 along the insertion direction of the optical fiber 5. It can be connected that the specific number of the keys 241 is not limited here, and technicians in the relevant field can replace it on this basis. For example, in some specific embodiments, four keys 241 are provided. When the assembly portion 24 is inserted into the installation cavity 31, the key 241 is inserted into the slot 32, and the key 241 is connected to the front sleeve 3. The tail handle 2 is aligned with the slot 32 through the key 241 and inserted into the slot 32, which can ensure that the core column 1 is difficult to rotate along the axial direction when assembled with the front sleeve 3, thereby ensuring that the optical fiber 5 is in a horizontal docking position, and the optical fiber 5 can be directly docked.

[0055] In a preferred embodiment, an elastic member 41 is provided between the tail sleeve 4 and the tail handle 2. The elastic member 41 is preferably, but not limited to, a spring. The spring sleeve is arranged on the outer side of the fiber insertion portion 23. One end of the spring along the compression direction abuts against the assembly portion 24, and the other end abuts against the inner wall of the tail sleeve 4. After the tail sleeve 4 is assembled with the front sleeve 3, the spring presses the assembly portion 24 against the inside of the front sleeve 3 through the elastic force to ensure the precision when the optical fibers 5 are connected to each other.

[0056] Furthermore, the outer walls of the front sleeve 3 on both sides along the insertion direction of the ferrule column 1 and the tail handle 2 are provided with mounting holes, and a clamping block is installed on the tail sleeve 4. When the front sleeve 3 is connected with the tail sleeve 4, the clamping block is inserted into the mounting hole, and the front sleeve 3 and the tail sleeve 4 are quickly disassembled and assembled. A connecting sleeve 42 is provided on the side of the tail sleeve 4 away from the front sleeve 3, and an outer sheath 43 is provided on the end of the connecting sleeve 42 away from the tail sleeve 4. The connecting sleeve 42 and the outer sheath 43 realize the connection between the optical fiber 5 and the tail sleeve 4, and can provide a certain protection for the optical fiber 5.

[0057] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0059] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0060] In the present utility model, unless otherwise clearly specified and limited, the first feature being above or below the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature being above, above, and above the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being below, below, and below the second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0061] Although the utility model is described in conjunction with the above specific embodiments, it is obvious that those skilled in the art can make many substitutions, modifications and changes based on the above content. Therefore, all such substitutions, improvements and changes are included in the spirit and scope of the appended claims.

Claims

1. A high-density ceramic ferrule for a data center, characterized in that: include The ferrule column (1) is provided with a fiber insertion channel (11) for inserting the optical fiber (5); and The tail handle (2) is provided with an assembly hole (21) for inserting the core plug column (1), and a limiting hole (22) for the optical fiber (5) to pass through, the limiting hole (22) is connected to the assembly hole (21), and when the core plug column (1) is inserted into the assembly hole (21), the limiting hole (22) is connected to the fiber insertion channel (11) and limits the rotational displacement of the optical fiber (5) along the hole wall of the fiber insertion channel (11).

2. The high-density ceramic ferrule for data center according to claim 1, characterized in that: The tail handle (2) is formed with a first limiting surface (221) and a second limiting surface (222) in the limiting hole (22); the first limiting surface (221) and the second limiting surface (222) are arranged relatively parallel to each other; the first limiting surface (221) and the second limiting surface (222) are respectively fitted with corresponding sides of the optical fiber (5).

3. The high-density ceramic ferrule for data center according to claim 2, characterized in that: The cross section of the limiting hole (22) is square.

4. The high-density ceramic ferrule for data center according to claim 1, characterized in that: The ferrule column (1) comprises an entry end (12) and an exit end, wherein the entry end (12) and the exit end are arranged along the penetration direction of the optical fiber (5), and the aperture of the fiber insertion channel (11) at the entry end (12) is larger than the aperture of the fiber insertion channel (11) at the exit end.

5. An optical fiber connector, characterized in that: It comprises a data center high-density ceramic ferrule as claimed in any one of claims 1 to 4, wherein the outer sleeve of the data center high-density ceramic ferrule is provided with a front sleeve (3) and a tail sleeve (4), and the front sleeve (3) and the tail sleeve (4) are detachably connected.

6. The optical fiber (5) connector according to claim 5, characterized in that: The tail handle (2) comprises A fiber penetration portion (23), wherein the limiting hole (22) is provided on the fiber penetration portion (23); and The assembly portion (24) is located on one side of the fiber insertion portion (23), and the assembly hole (21) is opened on the assembly portion (24).

7. The optical fiber connector according to claim 6, characterized in that: An installation cavity (31) for accommodating the assembly portion (24) is formed inside the front sleeve (3), and the installation cavity (31) is adapted to the assembly portion (24).

8. The optical fiber connector according to claim 7, characterized in that: A limiting member for limiting the movement of the tail handle (2) is provided between the front sleeve (3) and the assembly portion (24).

9. The optical fiber connector according to claim 8, characterized in that: The front sleeve (3) is provided with a slot (32) on the inner wall of the installation cavity (31); the limiter comprises a key (241); the key (241) is arranged on the assembly portion (24); the front sleeve (3) is engaged with the key (241) at the slot (32).

10. The optical fiber connector according to claim 7, characterized in that: An elastic member (41) is provided between the assembly portion (24) and the tail sleeve (4), and the elastic member (41) presses the assembly portion (24) against the inner wall of the installation cavity (31).

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