mt ferrule

Abstract

The utility model discloses MT plug core, include: plug core main part, the plug core main part includes: plug core shell and the protruding part that protrudes from plug core shell, wherein this protruding part has the cutting end that is away from plug core shell and is located the first inclined plane and the second inclined plane of both sides of this cutting end, the first inclined plane with the second inclined plane is used to connect the cutting end with the plug core shell, and both about the center of cutting end is symmetrically arranged to make the cross-sectional area of protruding part gradually increasing in the direction of cutting end from plug core shell.

Description

Technical Field

[0001] This utility model relates to the field of optical communication technology, specifically to MT ferrules. Background Technology

[0002] The standard thickness of a conventional MT ferrule is 2.4mm. When laser-cutting short jumper ferrules to create them, due to this thickness and the cutting angle, the laser will directly contact the end face of the ferrule (e.g., ...). Figure 1 (As shown). This problem will lead to two adverse consequences: First, the residue and soot from the burn will adhere to the fiber end face, contaminating the optical path and directly affecting signal transmission; Second, the burn location 1 on the end face will produce a local protrusion, which will change the calibration distance between the fiber end face and the lens during coupling, resulting in focusing inaccuracy and ultimately affecting the power transmission performance of the product. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an MT ferrule to solve the problem of burns and contamination on the end face caused by direct contact between the ferrule and the laser in the existing technology.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: MT insert, comprising: insert body, the insert body including: insert housing and protrusion protruding from the insert housing, wherein the protrusion has a cut end away from the insert housing and a first inclined surface and a second inclined surface located on both sides of the cut end; The first inclined surface and the second inclined surface are used to connect the cutting end and the ferrule housing, and the two are symmetrically arranged about the center of the cutting end so that the cross-sectional area of ​​the protrusion gradually increases from the direction of the ferrule housing at the cutting end.

[0005] Furthermore, the cutting end is planar.

[0006] Furthermore, the center of the cut end is located on the center line of the ferrule housing.

[0007] Furthermore, the angle between the first inclined plane and the second inclined plane and the centerline of the ferrule housing is α, which satisfies α≤20°.

[0008] Furthermore, the end of the first bevel extends to the edge of the ferrule housing.

[0009] Furthermore, a chamfer or rounded corner is formed between the end of the first bevel and the edge of the ferrule housing; and / or A chamfer or rounded corner is formed between the end of the first inclined surface and the cutting end.

[0010] Furthermore, the lengths of the ferrule housing and the protrusion are defined as l1 and l2, respectively, satisfying l1 > l2.

[0011] Furthermore, the inner cavity of the insert housing is formed inside, and the surface of the insert housing is formed with an injection port, and the inner cavity is connected to the injection port.

[0012] Furthermore, a boss is provided at one end of the ferrule housing opposite to the protrusion, and the boss is arranged to protrude circumferentially along the ferrule housing.

[0013] Furthermore, the inner cavity is provided with a stepped surface.

[0014] Compared with the prior art, this utility model has the following beneficial effects: By providing a protrusion on the ferrule housing, the protrusion has a cutting end, and a first inclined surface and a second inclined surface are provided on both sides of the cutting end, so that the cutting end can be completely exposed. The two inclined surfaces can avoid the laser cutting blade position, avoiding direct contact between the ferrule and the laser, and preventing its end face from being burned. At the same time, it avoids the phenomenon of residue and dust adhering to the fiber end face and ferrule end face, as well as the phenomenon of protrusion deformation due to burns. It reduces the fiber end face cleaning and ferrule cleaning processes during the manufacturing process, thereby making its appearance cleaner and increasing the pass rate of the product during use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a conventional MT ferrule in the prior art; Figure 2 This is a schematic diagram of the structure of an MT ferrule according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the MT ferrule from another angle according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of an MT ferrule according to an embodiment of the present invention; Figure 5 This is a cross-sectional view of an embodiment of the present invention, showing the MT ferrule after a jumper wire has been installed.

[0016] The reference numerals in the accompanying drawings include: 1. Location of burns; 2. Laser; 3. Embedded housing; 301. Inner cavity; 302. Glue injection port; 303. Stepped surface; 4. Protrusion; 401. Cutting end; 402. First inclined surface; 403. Second inclined surface; 5. Boss. Detailed Implementation

[0017] The present invention will be further described in detail below through specific embodiments: In the embodiments of this utility model, such as Figure 2 , Figure 3 As shown, the MT insert includes: an insert body, the insert body including: an insert housing 3 and a protrusion 4 protruding from the insert housing 3, wherein the protrusion 4 has a cut end 401 away from the insert housing 3 and a first inclined surface 402 and a second inclined surface 403 located on both sides of the cut end 401; The first inclined surface 402 and the second inclined surface 403 are used to connect the cutting end 401 and the ferrule housing 3, and the two are symmetrically arranged about the center of the cutting end 401 so that the cross-sectional area of ​​the protrusion 4 gradually increases from the cutting end 401 in the direction from the ferrule housing 3.

[0018] Specifically, in this embodiment of the invention, the insert body includes an insert housing 3 and a protrusion 4. The protrusion 4 protrudes outward from the end of the insert housing 3, allowing it to be completely exposed outside the insert body. Compared to a passive approach that increases clearance by creating a "groove," this not only ensures the structural strength and material continuity but also prevents the recessed area from becoming a "dust accumulation area" or its inner wall from being burned by the laser 2. Of course, the insert housing 3 and the protrusion 4 can be integrally formed.

[0019] Furthermore, the protrusion 4 has a first end near the ferrule housing 3 and a second end away from the ferrule housing 3. This second end is defined as the cutting end 401 of the protrusion 4, meaning that the laser 2 cuts the optical fiber at the cutting end 401 at a certain angle. To ensure that the laser 2 does not contact the cutting end 401, a first inclined surface 402 and a second inclined surface 403 are respectively provided on both sides of the cutting end 401. The two inclined surfaces allow the protrusion 4 to taper, making the cutting end 401 the smallest possible end. Figure 2 As shown, when laser 2 cuts at a certain angle, it forms an angle with both inclined surfaces and the cutting end 401. The inclined surfaces can effectively avoid the cutting position of laser 2, avoiding direct contact between the ferrule and laser 2, which would cause its end face to burn. This avoids the phenomenon of residue and dust adhering to the end face of the optical fiber and the end face of the ferrule, or the phenomenon of bulging deformation due to burns. This makes the appearance of this MT ferrule cleaner and increases the pass rate of the product during use.

[0020] Furthermore, the first inclined surface 402 and the second inclined surface 403 are symmetrically arranged about the center of the cutting end 401. On the one hand, this can effectively avoid the laser 2, and on the other hand, it can ensure the symmetry of the product. Also, there is no need to correct its position before cutting, which avoids the situation of burns on the end face due to misinstallation, and can also improve the cutting efficiency.

[0021] In this embodiment, the protrusion 4 protrudes from the ferrule housing 3, and a first inclined surface 402 and a second inclined surface 403 are provided on the protrusion 4. This avoids the cutting position of the laser 2, preventing direct contact between the ferrule and the laser 2 and thus avoiding burns on its end face. At the same time, it avoids the situation where residue and dust adhere to the fiber end face and the ferrule end face, and also avoids the phenomenon of protrusion deformation due to burns. This makes the ferrule appearance cleaner, increases the pass rate of the product during use, and reduces the fiber end face cleaning process and ferrule cleaning process during the product manufacturing process.

[0022] like Figure 2 , Figure 3 As shown, in one embodiment, the cutting end 401 is planar to avoid the laser 2, thereby preventing the cutting end 401 from directly contacting the laser 2.

[0023] like Figure 4 As shown, in one embodiment, the center of the cutting end 401 is located on the center line of the ferrule housing 3. Specifically, the ferrule is designed as a symmetrical structure, which ensures its neat and smooth appearance, and eliminates the need to identify its front and back before cutting and assembly, ensuring that the cutting end 401 never comes into contact with the laser 2. Preferably, the angle between the first inclined surface 402 and the second inclined surface 403 and the center line of the ferrule housing 3 is α; in this embodiment, α = 19°.

[0024] like Figure 2 , Figure 3 As shown, in one embodiment, the end of the first bevel 402 extends to the edge of the ferrule housing 3. Specifically, to facilitate subsequent installation of the ferrule and to prevent the ferrule housing 3 from contacting the laser 2, this embodiment extends the end of the first bevel 402 to the edge of the ferrule housing 3. Similarly, since the first bevel 402 and the second bevel 403 are symmetrically arranged, the end of the second bevel 403 also extends to the edge of the ferrule housing 3. Preferably, a chamfer or rounded corner is formed between the end of the first bevel 402 and the edge of the ferrule housing 3; and / or a chamfer or rounded corner is formed between the end of the first bevel 402 and the cutting end 401.

[0025] like Figure 4 As shown, in one embodiment, the lengths of the ferrule housing 3 and the protrusion 4 are defined as l1 and l2, respectively, satisfying l1 > l2. Specifically, a longer ferrule housing 3 can form a stable base, reduce the breakage rate, and facilitate demolding and identification during the manufacturing process.

[0026] As shown in the figure Figure 3 , Figure 5As shown, in one embodiment, the inner cavity 301 is formed inside the ferrule housing 3, and an injection port 302 is formed on its surface. The inner cavity 301 is connected to the injection port 302. Specifically, in order to install the short jumper wire into the ferrule housing 3, this embodiment provides an inner cavity 301 inside the ferrule housing 3. The inner cavity 301 is used to accommodate the short jumper wire and fix it by injection through the injection port 302.

[0027] Preferably, such as Figures 2-5 As shown, in one embodiment, a boss 5 is provided at one end of the ferrule housing 3 away from the protrusion 4. The boss 5 is arranged to protrude along the circumference of the ferrule housing 3 to improve the stability of the ferrule housing 3.

[0028] Preferably, the inner cavity 301 is provided with a stepped surface 303 for positioning short jumpers.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An MT ferrule, characterized in that, include: A ferrule body, the ferrule body comprising: a ferrule housing and a protrusion protruding from the ferrule housing, wherein the protrusion has a cut end away from the ferrule housing and a first inclined surface and a second inclined surface located on both sides of the cut end; The first inclined surface and the second inclined surface are used to connect the cutting end and the ferrule housing, and the two are symmetrically arranged about the center of the cutting end so that the cross-sectional area of ​​the protrusion gradually increases from the direction of the ferrule housing at the cutting end.

2. The MT ferrule as described in claim 1, characterized in that, The cutting end is planar.

3. The MT ferrule as described in claim 1 or 2, characterized in that, The center of the cut end is located on the center line of the ferrule housing.

4. The MT ferrule as described in claim 3, characterized in that, The angle between the first inclined plane and the second inclined plane and the center line of the ferrule housing is α, which satisfies α≤20°.

5. The MT ferrule as described in claim 4, characterized in that, The end of the first bevel extends to the edge of the ferrule housing.

6. The MT ferrule as described in claim 5, characterized in that, A chamfer or rounded corner is formed between the end of the first bevel and the edge of the ferrule housing; and / or A chamfer or rounded corner is formed between the end of the first inclined surface and the cutting end.

7. The MT ferrule as described in claim 1, characterized in that, The lengths of the ferrule housing and the protrusion are defined as l1 and l2, respectively, satisfying l1 > l2.

8. The MT ferrule as described in claim 1, characterized in that, The inner cavity of the insert housing is formed inside, and the surface of the insert housing is formed with an injection port. The inner cavity is connected to the injection port.

9. The MT ferrule as described in claim 1 or 8, characterized in that, The ferrule housing has a boss at one end opposite to the protrusion, and the boss protrudes circumferentially from the ferrule housing.

10. The MT ferrule as described in claim 8, characterized in that, The inner cavity is provided with a stepped surface.

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