MT and MT butt joint adapter

Abstract

The utility model relates to the technical field of optical fiber communication. More specifically, the utility model relates to an MT and MT butt joint adapter, comprising a pedestal, the upper end of which is provided with a fixing groove used for fixing an MT female head and an MT male head, one end of the fixing groove is opened, and the other end of the fixing groove is provided with a first threading groove; the movable pressing block is connected with the base through an elastic assembly, the elastic assembly applies acting force towards the fixing groove to the movable pressing block so that the movable pressing block can seal an opening in one end of the fixing groove, and a second threading groove communicated with the fixing groove is formed in the movable pressing block. In order to solve the problems of low efficiency and yield loss caused by adapter redundancy, unreliable fixation and poor compatibility in the existing MT interface coupling test, the utility model provides a quick-release MT and MT butt joint adapter.

Description

Technical Field

[0001] This utility model relates to the field of optical fiber communication technology. More specifically, this utility model relates to an MT-MT docking adapter. Background Technology

[0002] With the development of optical communication technology towards higher speeds and higher densities, MT (Mechanical Transfer) multi-core fiber optic interfaces are widely used in optical modules and transmission equipment due to their high channel integration (such as MT8 / MT16 / MT32). In the FA coupling test of the optical engine, the MT male connector on the optical module side and the MT female connector on the test equipment side need to be precisely aligned to complete optical signal transmission and performance verification. However, existing technologies have the following significant problems:

[0003] 1. Adapter redundancy and inefficiency:

[0004] The current mainstream solution uses an MPO (Multi-fiber Push-On) adapter as an intermediate transition component. The MT male connector must first be installed onto the MPO adapter, and then connected to the device via an MPO patch cord. This solution introduces an additional interface, leading to: increased signal link loss (the MPO adapter increases optical path reflection loss by more than 0.5dB); high operational complexity (requiring multiple insertions and removals of the MPO patch cord, reducing testing efficiency by 30%-40%); and poor mechanical reliability (the weight of the MPO adapter and patch cord (≥50g) can easily pull on the optical module, causing interface misalignment or fiber end-face damage, resulting in a yield loss rate as high as 5%-8%).

[0005] 2. Fixed structural defects:

[0006] Existing MT (Mechanical, Material, and Machine) mating solutions mostly rely on rigid snap-fits, lacking dynamic compensation capabilities, which leads to: uneven mating force: manual operation force deviation (±3N) causes micro-cracks on the fiber end face, resulting in increased optical attenuation after long-term use; risk of poor contact: tolerance accumulation (±0.2mm) causes axial misalignment of the MT male and female connectors, with a probability of ≥3% for poor connection; inconvenient disassembly: traditional clamps require tool assistance, and replacement takes ≥2 minutes, making it difficult to adapt to the needs of automated production lines.

[0007] Based on the above pain points, there is an urgent need for a lightweight, high-precision, quick-release MT-MT direct connection adapter to eliminate redundant conversion links, improve testing efficiency and yield, and adapt to multiple specifications of optical modules. Utility Model Content

[0008] The purpose of this invention is to solve the problems of low efficiency and yield loss caused by adapter redundancy, unreliable fixing and poor compatibility in existing MT interface coupling tests, and to provide a quick-release MT to MT docking adapter.

[0009] To achieve these objectives and other advantages according to the present invention, an MT-to-MT docking adapter is provided, comprising:

[0010] The base has a fixing groove at its upper end for fixing the MT female connector and the MT male connector. One end of the fixing groove is open and the other end is provided with a first wire-passing groove.

[0011] A movable pressure block is connected to the base via an elastic component. The elastic component applies a force to the movable pressure block toward the fixed groove, so that the movable pressure block seals one end opening of the fixed groove. The movable pressure block is provided with a second threading groove that communicates with the fixed groove.

[0012] Furthermore, the aforementioned MT-to-MT docking adapter also includes:

[0013] A fixing block is provided at its upper end with the second wire-passing groove, and the other end of the fixing groove is open. The fixing block is connected to the base and seals the other end opening of the fixing groove.

[0014] Furthermore, the aforementioned MT-to-MT docking adapter also includes:

[0015] The bolt has multiple threaded holes on the base and a number of positioning holes on the fixing block that correspond to the number of threaded holes. The bolt passes through the positioning holes and is threaded into the threaded holes.

[0016] Furthermore, in the aforementioned MT-MT docking adapter, the upper end of the fixing block is provided with a horizontal extension, the extension seals the opening at the other end of the fixing groove, and is provided with the second wire-passing groove.

[0017] Furthermore, in the aforementioned MT-MT docking adapter, the base is provided with a first sliding groove at one end near the movable pressure block, and the movable pressure block is provided with a sliding part, which is slidably disposed in the first sliding groove.

[0018] Furthermore, in the aforementioned MT-MT docking adapter, the elastic component includes:

[0019] A push rod, the first slide groove horizontally penetrates the base, the fixed pressure block is provided with a second slide groove communicating with the first slide groove, the push rod can slide horizontally through the second slide groove, one end of the push rod located outside the base is connected to a push block, the push rod located in the first slide groove is connected to a limiting member, the limiting member is detachably connected to the fixed pressure block;

[0020] A connecting rod is horizontally arranged, with one end connected to the limiting member. A through hole is horizontally provided on the sliding part, and the other end of the connecting rod extends into the through hole and is connected to a baffle.

[0021] A spring is sleeved on the connecting rod and connected to the inner wall of the through hole. The part of the spring near the limiting member is in a stretched state, and its two ends are connected to the baffle and the limiting member, respectively.

[0022] Furthermore, in the aforementioned MT-MT docking adapter, the limiting member is made of ferromagnetic metal, and a first magnet is provided at one end of the fixing block near the limiting member.

[0023] Furthermore, in the aforementioned MT-MT docking adapter, the base is provided with notches that communicate with both sides of the fixing groove.

[0024] Furthermore, in the aforementioned MT-MT docking adapter, the upper end of the movable pressure block is provided with a pressing part corresponding to the sheet metal shell of the MT female or MT male connector.

[0025] Furthermore, the aforementioned MT-to-MT docking adapter also includes:

[0026] A second magnet is disposed at the lower end of the base.

[0027] The beneficial effects of this utility model are:

[0028] 1. This utility model's MT-to-MT connector adapter enables direct docking of the MT male and female connectors without the need for an intermediate MPO adapter. The MPO-free design reduces optical path loss by 0.5dB and reduces testing steps by 50%. Its detachable and easily replaceable design offers high practicality and applicability. Tool-free insertion and removal are simple. By changing the MT male and female connector clamp components, it can be used with products on the market with different MT fiber core counts. Different constant force spring sizes can be used to adapt to different needs. The magnetic fixing and push-rod quick-release structure reduces single-change time to ≤10 seconds, improving production line efficiency by 40%. The magnetic structure prevents displacement of the MT tail jumper during coupling, ensuring more stable coupling and guaranteeing the efficiency and yield of FA coupling testing for the optical engine, enabling smooth FA coupling testing of the optical engine.

[0029] 2. When the MT and MT mating adapter of this utility model directly mates the MT male and MT female, the force exerted by the moving pressure block on the MT male and MT female is constant, controlling the insertion force deviation within ±0.2N and reducing the end face damage rate to below 0.3%; the floating compensation structure reduces the probability of false connection from 3% to 0.5%, and improves the FA coupling yield to 99.2%.

[0030] 3. The MT-MT connector adapter of this utility model has a more suitable fixing groove when the MT male and MT female are plugged in. At the same time, a constant spring force is applied downward and in the MT male and female docking direction, which can not only effectively fix the MT male and MT female, so that the MT male and MT female are effectively connected, but also avoid abnormal situations such as poor contact due to loosening, complete disconnection or tilting of the MT male and MT female. At the same time, the constant force ensures the consistency of the force on the MT each time, ensuring the consistency of insertion and removal of MT optical fiber during use and preventing damage to the fiber end face caused by inconsistent insertion force during use. This effectively ensures the repeatability of coupling test and improves production yield and efficiency.

[0031] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the docking adapter described in this utility model;

[0033] Figure 2 This is a schematic diagram of the docking adapter described in this utility model;

[0034] Figure 3 This is a schematic diagram of the structure of the base described in this utility model;

[0035] Figure 4 This is a schematic diagram of the structure of the fixing block described in this utility model;

[0036] Figure 5 This is a schematic diagram showing the connection between the elastic component and the movable pressure block described in this utility model;

[0037] Figure 6 This is a schematic diagram showing the connection between the elastic component and the fixed pressure block described in this utility model;

[0038] Figure 7 This is a schematic diagram of the push rod described in this utility model.

[0039] The reference numerals in the attached figures are as follows:

[0040] Base 1, fixing groove 11; first sliding groove 12; notch 13; movable pressure block 2; first wire threading groove 21; sliding part 22; pressing part 23; fixing pressure block 3; second wire threading groove 31; bolt 32; extension part 33; second sliding groove 34; elastic component 4; push rod 41; push block 42; limiting part 43; connecting rod 44; baffle 45; spring 46; MT female connector 51; MT male connector 52; sheet metal housing 53. Detailed Implementation

[0041] The present invention will be further described in detail below with reference to the embodiments, so that those skilled in the art can implement it based on the description.

[0042] It should be noted that, unless otherwise specified, the experimental methods described in the following embodiments are all conventional methods, and the reagents and materials described are all commercially available unless otherwise specified. In the description of this utility model, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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. Therefore, they should not be construed as limitations on this utility model.

[0043] like Figures 1-3 As shown, an embodiment of this utility model provides an MT-to-MT docking adapter, comprising:

[0044] The base 1 has a fixing groove 11 at its upper end for fixing the MT female connector 51 and the MT male connector 52. The width of the fixing groove 11 corresponds to the width of the MT female connector 51 and the MT male connector 52. One end of the fixing groove 11 is open in the length direction, and the other end of the fixing groove 11 is provided with a first wire-passing groove 21.

[0045] The movable pressure block 2 is connected to the base 1 via an elastic component 4. The elastic component 4 applies a force to the movable pressure block 2 toward the fixed groove 11 so that the movable pressure block 2 seals one end opening of the fixed groove 11. The movable pressure block 2 is provided with a second threading groove 31 that communicates with the fixed groove 11.

[0046] In this embodiment, the shape of the fixing groove 11 matches the MT female connector 51 and the MT male connector 52. First, the MT female connector 51 is placed in the fixing groove 11 along its length. The sheet metal outer shell 53 of the MT female connector 51 abuts against the inner wall of the other end of the fixing groove 11. The PIN pin and fiber optic sheath of the MT female connector 51 are both located in the first cable insertion groove 21. Then, an external force is applied to the elastic component 4 or the moving pressure block 2, causing the moving pressure block 2 to move away from the fixing groove 11. At this time, the MT male connector 52 can be inserted into the fixing groove 11 along its length. The PIN pins and fiber optic sheath of the male MT connector 52 are both located in the second cable tray 31. After aligning the male MT connector 52 with the female MT connector 51, the external force is released. Under the action of the elastic component 4, the moving block 2 will move towards the fixed slot 11 until it contacts the base 1. At this time, the moving block 2 seals one end of the fixed slot 11 and contacts the sheet metal shell 53 of the male MT connector 52, applying a force towards the female MT connector 51 to lock the male and female MT connectors 51 and 52, completing their docking. After docking, the external force acts on the elastic component 4 or the moving block 2, causing the moving block 2 to move away from the fixed slot 11, allowing the docked female and male MT connectors 51 and 52 to be removed. When mates the MT female connector 51 and MT male connector 52 using the adapter in this embodiment, the intermediate MPO adapter is eliminated, allowing direct mating between the MT male connector 52 and MT female connector 51, reducing optical path loss and operational steps. Simultaneously, the force exerted by the moving pressure block 2 towards the MT female connector 51 remains constant, eliminating human error and ensuring consistent mating force.

[0047] Preferably, as another embodiment of the present invention, it further includes:

[0048] The fixing block 3 has a second wire groove 31 at its upper end. The other end of the fixing groove 11 is open. The fixing block 3 is connected to the base 1 and seals the other end opening of the fixing groove 11.

[0049] In this embodiment, a fixed pressure block 3 is provided on the base 1, and the fixed pressure block 3 and the movable pressure block 2 are arranged opposite to each other, forming a clamping space between them. When the fixed pressure block 3 is connected to the base 1, multiple bolts 32 can be provided. The base 1 has multiple threaded holes, and the fixed pressure block 3 has positioning holes that are equal in number and correspond one-to-one with the number of threaded holes. The bolts 32 pass through the positioning holes and are threaded into the threaded holes. Tightening the bolts 32 can fix the fixed pressure block 3 to the base 1.

[0050] Preferably, in another embodiment of the present invention, the upper end of the fixing block 3 is provided with an extension 33, the extension 33 seals the opening at the other end of the fixing groove 11, and is provided with the second threading groove 31.

[0051] In this embodiment, the lower end of the extension 33 is attached to the upper end of the base 1, and when the MT female head 51 is placed in the fixing groove 11, its sheet metal shell 53 abuts against the extension 33.

[0052] Preferably, in another embodiment of the present invention, the base 1 is provided with a first sliding groove 12 at one end near the movable pressure block 2, and the movable pressure block 2 is provided with a sliding part 22, which is slidably disposed in the first sliding groove 12.

[0053] In this embodiment, by providing a sliding part 22 on the movable pressure block 2 and sliding the sliding part 22 in the first slide groove 12, the first slide groove 12 is provided along the length direction of the fixed groove 11, so that the movable pressure block 2 can slide stably along the length direction of the fixed groove 11.

[0054] Preferably, as another embodiment of this utility model, such as Figures 4-7 As shown, the elastic component 4 includes:

[0055] The push rod 41 has a first sliding groove 12 that horizontally passes through the base 1. The fixed pressure block 3 has a second sliding groove 34 that communicates with the first sliding groove 12. The push rod 41 can slide horizontally through the second sliding groove 34. One end of the push rod 41 located outside the base 1 is connected to a push block 42. The push rod 41 located inside the first sliding groove 12 is connected to a limiting member 43. The limiting member 43 is made of ferromagnetic metal. One end of the fixed pressure block 3 near the limiting member 43 is provided with a first magnet. The limiting member 43 and the fixed pressure block 3 are detachably connected by the magnet adsorbing the limiting member 43.

[0056] The connecting rod 44 is horizontally arranged, and one end of it is connected to the limiting member 43. The sliding part 22 is provided with a through hole horizontally, and the other end of the connecting rod 44 extends into the through hole and is connected to a baffle 45.

[0057] Spring 46 is sleeved on the connecting rod 44 and connected to the inner wall of the through hole. The part of spring 46 near the limiting member 43 is in a stretched state, and its two ends are connected to the baffle 45 and the limiting member 43 respectively.

[0058] In this embodiment, the middle part of the spring 46 is connected to the inner wall of the through hole on the sliding part 22, and its two ends are connected to the limiting member 43 and the baffle 45 respectively. The part of the spring 46 near the limiting member 43 is in a stretched state, which will exert a force on the sliding part 22 and the limiting member 43 to make them move closer to each other, so that the push rod 41 and the moving pressure block 2 move closer to each other. The longitudinal cross-sectional area of ​​the push block 42 and the limiting member 43 is larger than that of the sliding rod, and the length of the sliding rod is greater than that of the fixed pressure block 3, so that during the sliding of the sliding rod, both the push block 42 and the limiting member 43 can slide to contact the fixed pressure block 3.

[0059] Without external force, the limiting member 43 attracts the first magnet on the fixed pressure block 3, connecting the limiting member 43 and the fixed pressure block 3. Under the force of the spring 46, the push rod 41 and the moving pressure block 2 move closer to each other, so the spring 46 will drive the moving pressure block 2 to move towards the fixed pressure block 3 until the moving pressure block 2 abuts against the base 1. The part of the spring 46 near the limiting member 43 is still in a stretched state, and the spring 46 applies an elastic preload to the moving pressure block 2. The moving pressure block 2 abuts against the sheet metal shell 53 of the MT male connector 52 and applies a force towards the MT female connector 51, locking the MT female connector 51 and the MT male connector 52, completing their docking. When it is necessary to release the locking of the moving pressure block 2 by the elastic component 4, push the push block 42 by hand, so that the push rod 41 moves towards the moving pressure block 2, the limiting member 43 separates from the first magnet on the fixed pressure block 3, and the push block 42 abuts against the fixed pressure block 3. During this process, the spring 46 and the movable pressure block 2 move with the push rod 41. After the stretched part of the spring 46 returns to its original length, there is a gap between the movable pressure block 2 and the base 1. At this time, the spring 46 no longer applies elastic preload to the movable pressure block 2, and the force between the movable pressure block 2 and the MT male head 52 is released. At this time, the MT female head 51 and MT male head 52 that have been connected in the fixing groove 11 can be taken out.

[0060] Preferably, in another embodiment of the present invention, the base 1 is provided with notches 13 that communicate with both sides of the fixing groove 11 in the width direction.

[0061] In this embodiment, two notches 13 are provided on the base 1 to facilitate the removal of the MT female head 51 and MT male head 52 after they have been connected.

[0062] Preferably, in another embodiment of the present invention, the upper end of the movable pressure block 2 is provided with a pressing part 23 corresponding to the sheet metal shell 53 of the MT female head 51 or MT male head 52.

[0063] In this embodiment, by providing a pressing part 23 at the upper end of the movable pressing block 2, a downward force is applied to the MT female connector 51 or MT male connector 52 through the pressing part 23, thus preventing the abnormal situation of the MT female connector 51 or MT male connector 52 tilting up during docking.

[0064] Preferably, as another embodiment of the present invention, it further includes:

[0065] The second magnet is located at the lower end of the base 1.

[0066] In this embodiment, by setting a second magnet at the lower end of the base 1, the MT and the MT docking adapter can be magnetically fixed to the test stage.

[0067] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and embodiments shown and described herein.

Claims

1. A MT-to-MT docking adapter, comprising: The utility model relates to a fixing device for MT female head and MT male head, comprising: a base, the upper end of which is provided with a fixing groove for fixing the MT female head and the MT male head, the fixing groove being open at one end and provided with a first threading groove at the other end; a movable pressing block connected to the base through an elastic assembly, the elastic assembly applying a force to the movable pressing block towards the fixing groove so that the movable pressing block seals the open end of the fixing groove, the movable pressing block being provided with a second threading groove in communication with the fixing groove.

2. A MT-to-MT docking adapter as in claim 1, wherein, Further comprising: a fixed pressing block, the upper end of which is provided with the second threading groove, the other end of the fixing groove being open, the fixed pressing block being connected to the base and sealing the open end of the fixing groove.

3. A MT-to-MT docking adapter as in claim 2, wherein, Further comprising: a bolt, the base being provided with a plurality of threaded holes, the fixed pressing block being provided with positioning holes equal in number to the threaded holes and corresponding one by one, the bolt being threaded into the threaded holes through the positioning holes.

4. A MT-to-MT docking adapter as in claim 2, wherein, The upper end of the fixed pressing block is horizontally provided with an extension part, the extension part sealing the open end of the fixing groove and being provided with the second threading groove.

5. A MT-to-MT docking adapter as defined in claim 2, wherein, The base is horizontally provided with a first sliding groove near the end of the movable pressing block, the movable pressing block being provided with a sliding part, the sliding part being slidably arranged in the first sliding groove.

6. A MT-to-MT docking adapter as in claim 5, wherein, The elastic assembly comprises: a push rod, the first sliding groove horizontally penetrating the base, the fixed pressing block being provided with a second sliding groove in communication with the first sliding groove, the push rod being slidably horizontally arranged in the second sliding groove, one end of the push rod outside the base being connected to a push block, the other end of the push rod being connected to a limiting part arranged in the first sliding groove, the limiting part being detachably connected to the fixed pressing block; a connecting rod, the connecting rod being horizontally arranged, one end of the connecting rod being connected to the limiting part, the sliding part being horizontally provided with a through hole, the other end of the connecting rod extending into the through hole and being connected to a baffle; a spring, the spring being sleeved on the connecting rod and connected to the inner wall of the through hole, the spring being in a stretched state near the limiting part, the spring being connected to the baffle and the limiting part at two ends respectively.

7. A MT-to-MT docking adapter as in claim 6, wherein, The limiting part is a ferromagnetic metal, the fixed pressing block being provided with a first magnet near the limiting part.

8. A MT-to-MT docking adapter as defined in claim 1, wherein, The base is provided with notches in communication with both sides of the fixing groove respectively.

9. A MT-to-MT docking adapter as defined in claim 1, wherein, The upper end of the movable pressing block is provided with a pressing cover corresponding to the metal shell of the MT female head or the MT male head.

10. The MT-to-MT docking adapter of claim 1, wherein, Further comprising: a second magnet arranged at the lower end of the base.

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