Mpo ferrule and connector

Abstract

The utility model discloses an MPO plug core and connector, relate to optical fiber communication field. MPO plug core includes: plug core body and protection cover, and plug core body has the front end and rear end, and protection cover inserts in the rear end, and is used to protect the optical fiber, and plug core body still has the inner chamber of intercommunication front end and rear end, and the front end has the multiple optical fiber holes of horizontal arrangement, and the spacing between each optical fiber hole is 0.2 millimeter, and the optical fiber is from protection cover and is passed through the inner chamber, and then, from the optical fiber hole, since the spacing between each optical fiber hole is 0.2 millimeter, can match the 0.2 millimeter outer diameter of coating optical fiber, thereby avoid the problem that the optical fiber coating outer diameter reduces and cannot enter the plug core, and improve the wiring density.

Description

Technical Field

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

[0002] In recent years, with the popularization of cloud computing, big data, and artificial intelligence (AI) technologies, data centers have continued to expand in scale, leading to a surge in demand for high-speed, high-density fiber optic connections. MPO ferrules, as multi-core connectors, can integrate 12, 16, 24, or even more optical fibers in a single interface, significantly improving cabling density and saving rack space. However, the fiber optic hole spacing in the ferrule is determined by the outer diameter of the coated fiber. Currently, the industry standard for coated fiber outer diameter is 0.25mm. With increasing cabling density, the coated fiber outer diameter has shrunk to 0.2mm. Existing MPO ferrules with a 0.25mm fiber optic hole spacing cannot match coated fibers with a 0.2mm outer diameter, resulting in the problem of the fiber not being able to be inserted into the ferrule after the outer diameter of the coated fiber is reduced. Utility Model Content

[0003] Therefore, it is necessary to provide an MPO ferrule and connector to solve the problem that the outer diameter of the coated optical fiber in the current industry is mainly 0.25mm. With the increase in wiring density, the outer diameter of the coated optical fiber has been reduced to 0.2mm. However, the existing MPO ferrule has a fiber hole spacing of 0.25mm, which cannot match the coated optical fiber with an outer diameter of 0.2mm, resulting in the problem that the coated optical fiber cannot be inserted into the ferrule after the outer diameter of the fiber is reduced.

[0004] In a first aspect, this utility model provides an MPO ferrule, the MPO ferrule comprising: a ferrule body and a protective sleeve, the ferrule body having a front end and a rear end, the protective sleeve being inserted into the rear end and used to protect the optical fiber, the ferrule body also having an inner cavity communicating with the front end and the rear end, the front end having a plurality of optical fiber holes arranged in a line, the spacing between each optical fiber hole being 0.2 mm, the optical fiber passing through the protective sleeve and through the inner cavity, and then exiting from the optical fiber holes.

[0005] In one embodiment, the number of optical fiber apertures is 12 or 16.

[0006] In one embodiment, the diameter of the fiber optic aperture is 0.125 mm.

[0007] In one embodiment, the inner cavity is provided with a plurality of V-shaped grooves, each V-shaped groove corresponding to one of the optical fiber holes, and used to guide the optical fiber through each of the optical fiber holes.

[0008] In one embodiment, each of the V-grooves has a groove width of 0.2 mm and the groove spacing is consistent.

[0009] In one embodiment, the insert body has an imprint near the front end, the imprint being used to monitor the amount of chips after the insert body is ground.

[0010] In one embodiment, the imprint is 0.2 mm away from the front end.

[0011] In one embodiment, the ferrule body has a PIN hole at the end face of the front end, the PIN hole being used for external PIN pins to pass through for connection.

[0012] In one embodiment, the protective sleeve includes a first portion and a second portion connected to the first portion, the second portion being inserted into the insert body, and the first portion forming a symmetrical step relative to the second portion.

[0013] Secondly, the present invention also provides a connector, the connector comprising the MPO ferrule of any of the above embodiments.

[0014] Implementing the embodiments of this utility model will have the following beneficial effects:

[0015] The MPO ferrule and connector of this invention have a front end and a rear end. A protective sleeve is inserted into the rear end to protect the optical fiber. The ferrule body also has an inner cavity connecting the front end and the rear end. The front end has multiple optical fiber holes arranged in a row, with a spacing of 0.2 mm between each optical fiber hole. The optical fiber passes through the protective sleeve, passes through the inner cavity, and exits through the optical fiber holes. Since the spacing between each optical fiber hole is 0.2 mm, it can match coated optical fibers with an outer diameter of 0.2 mm, thereby avoiding the problem that the outer diameter of the coated optical fiber cannot be inserted into the ferrule after the outer diameter is reduced, and improving the wiring density. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] in:

[0018] Figure 1 This is an isometric schematic diagram of an MPO ferrule in one embodiment.

[0019] Figure 2 for Figure 1 The diagram shows a top view of the MPO ferrule.

[0020] Figure 3 for Figure 1 The diagram shows a side view of the MPO ferrule.

[0021] Figure 4 for Figure 1 The diagram shows a front view of the MPO ferrule.

[0022] Figure 5 for Figure 1 The diagram shows a protective sleeve for the MPO ferrule.

[0023] Figure label:

[0024] 1. Flanger body; 11. Front end; 12. Rear end; 13. Inner cavity; 14. Fiber optic port; 15. V-groove; 16. Imprint; 17. PIN hole;

[0025] 2. Protective cover; 21. First part; 211. Step; 22. Second part. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0029] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0030] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0031] Please combine them together Figures 1 to 5The MPO ferrule provided by this utility model will now be described. The MPO ferrule is used in connectors.

[0032] The MPO ferrule includes a ferrule body 1 and a protective sleeve 2. The ferrule body 1 has a front end 11 and a rear end 12. The protective sleeve 2 is inserted into the rear end 12 and is used to protect the optical fiber. The ferrule body 1 also has an inner cavity 13 that connects the front end 11 and the rear end 12. The front end 11 has a plurality of optical fiber holes 14 arranged in a line. The spacing between each optical fiber hole 14 is 0.2 mm. The optical fiber passes through the protective sleeve 2, passes through the inner cavity 13, and exits from the optical fiber hole 14.

[0033] Understandably, the ferrule body 1 of this MPO ferrule has a front end 11 and a rear end 12. The protective sleeve 2 is inserted into the rear end 12 and is used to protect the optical fiber. The ferrule body 1 also has an inner cavity 13 that connects the front end 11 and the rear end 12. The front end 11 has multiple optical fiber holes 14 arranged in a row. The spacing between each optical fiber hole 14 is 0.2 mm. After the optical fiber passes through the protective sleeve 2 and the inner cavity 13, it exits from the optical fiber hole 14. Since the spacing between each optical fiber hole 14 is 0.2 mm, it can match coated optical fibers with an outer diameter of 0.2 mm, thereby avoiding the problem that the outer diameter of the coated optical fiber cannot be inserted into the ferrule after the outer diameter of the optical fiber is reduced, and improving the wiring density.

[0034] In this embodiment, the number of holes in the fiber optic port 14 is 12 or 16. Thus, this invention is applicable to 12-core, 16-core, 24-core, and 32-core MPO ferrules.

[0035] Specifically, the diameter of fiber optic hole 14 is 0.125 mm. Its precision depends on the product performance requirements.

[0036] Furthermore, the inner cavity 13 is provided with multiple V-grooves 15, each corresponding to a fiber optic hole 14, and used to guide the fiber optic cable through the fiber optic hole 14. Since the fiber optic hole 14 has high precision, the V-grooves 15 are used to guide the fiber optic cable through the fiber optic hole 14, thereby playing a guiding and assisting role.

[0037] Specifically, each V-groove 15 has a groove width of 0.2 mm and a consistent groove spacing. This allows the V-groove 15 to guide the auxiliary optical fiber through the optical fiber aperture 14.

[0038] Furthermore, the insert body 1 has an imprint 16 near the front end 11. The imprint 16 is used to monitor the amount of chips after grinding the insert body 1. The imprint 16 is generated during insert forming. When the amount of chipping exceeds the limit imprint 16 after grinding, it indicates that the insert size no longer meets the usage requirements. This design solves the cumbersome operation of grinding and caliper measurement in the industry.

[0039] Specifically, the distance between the imprint 16 and the front end 11 is 0.2 mm.

[0040] Furthermore, the ferrule body 1 has a PIN hole 17 at the end face of the front end 11, which is used for external PIN pins to pass through for connection. By setting the PIN hole 17, the PIN pins are used for connection when the ferrules are mated with each other.

[0041] Furthermore, the protective sleeve 2 includes a first part 21 and a second part 22 connected to the first part 21. The second part 22 is inserted into the ferrule body 1, and the first part 21 forms a symmetrical step 211 relative to the second part 22. The second part 22 is assembled and connected to the ferrule body 1, and the first part 21 is used to protect the inserted optical fiber.

[0042] This utility model also provides a connector, which includes the MPO ferrule of any of the above embodiments.

[0043] Understandably, the connector uses the aforementioned MPO ferrule, which gives the ferrule body 1 a front end 11 and a rear end 12. The protective sleeve 2 is inserted into the rear end 12 and is used to protect the optical fiber. The ferrule body 1 also has an inner cavity 13 connecting the front end 11 and the rear end 12. The front end 11 has multiple optical fiber holes 14 arranged in a row, with a spacing of 0.2 mm between each optical fiber hole 14. The optical fiber passes through the protective sleeve 2, passes through the inner cavity 13, and exits from the optical fiber hole 14. Since the spacing between each optical fiber hole 14 is 0.2 mm, it can match coated optical fibers with an outer diameter of 0.2 mm, thereby avoiding the problem that the outer diameter of the coated optical fiber cannot be inserted into the ferrule after the outer diameter is reduced, and improving the wiring density.

[0044] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0045] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

Claims

1. An MPO ferrule, characterized in that, The MPO ferrule includes a ferrule body and a protective sleeve. The ferrule body has a front end and a rear end. The protective sleeve is inserted into the rear end and is used to protect the optical fiber. The ferrule body also has an inner cavity connecting the front end and the rear end. The front end has a plurality of optical fiber holes arranged in a line, with a spacing of 0.2 mm between each optical fiber hole. The optical fiber passes through the protective sleeve, passes through the inner cavity, and exits from the optical fiber holes.

2. The MPO ferrule according to claim 1, characterized in that, The number of optical fiber holes is 12 or 16.

3. The MPO ferrule according to claim 2, characterized in that, The diameter of the fiber optic hole is 0.125 mm.

4. The MPO ferrule according to claim 1, characterized in that, The inner cavity is provided with a plurality of V-shaped grooves, each of which corresponds to a fiber optic hole and is used to guide the fiber optic cable through the fiber optic hole.

5. The MPO ferrule according to claim 4, characterized in that, Each of the V-grooves has a groove width of 0.2 mm and the groove spacing is consistent.

6. The MPO ferrule according to claim 1, characterized in that, The insert body has an imprint near the front end, which is used to monitor the amount of chips after the insert body is ground.

7. The MPO ferrule according to claim 6, characterized in that, The distance between the imprint and the front end is 0.2 mm.

8. The MPO ferrule according to claim 1, characterized in that, The ferrule body has a PIN hole at the end face of the front end, which is used for external PIN pins to pass through for connection.

9. The MPO ferrule according to claim 1, characterized in that, The protective sleeve includes a first part and a second part connected to the first part. The second part is inserted into the insert body, and the first part forms a symmetrical step with respect to the second part.

10. A connector, characterized in that, The connector includes an MPO ferrule as described in any one of claims 1-9.

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