Wedge-shaped MPO buckle assembly structure

Abstract

The utility model relates to a wedge-shaped MPO buckle assembling structure which comprises an MPO adapter and an insertion core limiting piece, the area, located at the tail end, of an assembling hole formed in the MPO adapter in a penetrating mode in the axial direction is in a wedge shape, the insertion core limiting piece is in a wedge shape, and the insertion core limiting piece is inserted into the assembling hole through the tail end of the MPO adapter. And the MPO adapter extrudes the periphery of the insertion core limiting piece through wedge-shaped interference fit, so that the insertion core limiting piece is deformed by extrusion to clamp the MT insertion core inserted in the insertion core limiting piece. The MPO adapter has the beneficial effects that when the insertion core limiting piece is inserted into the assembly hole through the tail end of the MPO adapter, the MPO adapter extrudes the periphery of the insertion core limiting piece through wedge-shaped interference fit, so that the MT insertion core inserted in the insertion core limiting piece is clamped by the deformation generated by the extrusion of the insertion core limiting piece, the MT insertion core and the MPO adapter can be completely fixed, the plugging consistency of an optical port is good, and the plugging quality of the optical port is improved. And the performance and the plugging reliability of the optical module are not influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of optical modules, and in particular to a wedge-shaped MPO buckle assembly structure. Background Art

[0002] The current solution for fixing the MT ferrule in the optical module is to press it by the upper and lower covers of the structural parts or use an integrated MPO adapter. Due to the existence of processing tolerances and assembly tolerances, there is a gap between the MT ferrule and the MPO adapter after assembly, and the MT ferrule cannot be completely fixed, resulting in poor consistency in optical port plugging and unplugging, affecting the performance and plugging reliability of the optical module. This problem is particularly evident in high-speed optical modules, especially in high-speed single-mode products. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a wedge-shaped MPO buckle assembly structure to overcome the deficiencies in the above-mentioned prior art.

[0004] The utility model solves the above-mentioned technical problem with the following technical solution: a wedge-shaped MPO buckle assembly structure, comprising: an MPO adapter and a ferrule stopper, the assembly hole arranged along the axial direction on the MPO adapter is wedge-shaped in the tail end area, the ferrule stopper is wedge-shaped, the ferrule stopper is inserted into the assembly hole through the tail end of the MPO adapter, and the MPO adapter is squeezed around the ferrule stopper through a wedge-shaped interference fit, so that the ferrule stopper is deformed by the extrusion to clamp the MT ferrule inserted therein.

[0005] The beneficial effects of the utility model are:

[0006] When the ferrule stopper is inserted into the assembly hole through the rear end of the MPO adapter, the MPO adapter squeezes the ferrule stopper around the ferrule stopper through a wedge-shaped interference fit, so that the ferrule stopper is deformed by the extrusion to clamp the MT ferrule inserted therein, and the MT ferrule and the MPO adapter can be completely fixed to ensure good consistency in optical port plugging and unplugging, so as not to affect the performance and plugging reliability of the optical module.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, a wedge block is provided on the inclined surface of the ferrule limiter, and a limit hole is provided on the hole wall of the assembly hole located in the wedge-shaped area. After the ferrule limiter is inserted into the assembly hole through the tail end of the MPO adapter, the wedge block will be stuck in the limit hole.

[0009] A further beneficial effect of the above arrangement is that the ferrule stopper can be completely fixed in the assembly hole of the MPO adapter to prevent the ferrule stopper from loosening and falling off, thereby preventing the MT ferrule from loosening.

[0010] Furthermore, there are two wedge blocks, which are symmetrically located on both sides of the insert limiting member; there are two limiting holes, which are symmetrically located on both sides of the assembly hole.

[0011] Furthermore, the rear end of the ferrule limiting member has a plurality of undercuts for limiting the retreat of the MT ferrule.

[0012] A further beneficial effect of the above is that the MT ferrule can be completely fixed in the ferrule stopper to prevent the MT ferrule from loosening.

[0013] Furthermore, there are four undercuts, two of which are located at the top and two at the bottom. The upper undercuts and the lower undercuts are arranged opposite to each other, and the MT ferrule is clamped between the upper and lower undercuts.

[0014] Furthermore, the lower end of the upper inverted portion has an inclined guide surface, and the upper end of the lower inverted portion has an inclined guide surface.

[0015] A further beneficial effect of the above method is that the MT ferrule is easily inserted into the area between the upper and lower undercuts. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an exploded view of the wedge-shaped MPO buckle assembly structure in the utility model;

[0017] Figure 2 It is a cross-section and partial enlarged view of the wedge-shaped MPO buckle assembly structure in the utility model;

[0018] Figure 3 It is a stepped cross-sectional view of the wedge-shaped MPO buckle assembly structure in the utility model.

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0020] 1. MPO adapter, 110, assembly hole, 120, limit hole, 2. Ferrule limiter, 210, wedge block, 220, undercut, 221, guide surface, 3. MT ferrule. DETAILED DESCRIPTION

[0021] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0022] Example 1

[0023] like Figure 1 , Figure 2 , Figure 3As shown, a wedge-shaped MPO buckle assembly structure comprises: an MPO adapter 1 and a ferrule stopper 2, an assembly hole 110 is axially penetrated on the MPO adapter 1, and the ferrule stopper 2 also has a through hole axially, and an MT ferrule 3 is inserted into the ferrule stopper 2, the assembly hole 110 axially penetrated on the MPO adapter 1 is wedge-shaped in the tail end area, and the ferrule stopper 2 is also wedge-shaped, that is, the assembly surfaces of the MPO adapter 1 and the ferrule stopper 2 are inclined surfaces and have a certain interference, and the inclined surface has a certain guiding effect; the ferrule stopper 2 is inserted into the assembly hole 110 through the tail end of the MPO adapter 1, and the MPO adapter 1 squeezes the ferrule stopper 2 around the wedge-shaped interference fit, so that the ferrule stopper 2 is deformed by the extrusion to clamp the MT ferrule 3 inserted therein, wherein, Figure 2 The partially enlarged view is a wedge-shaped interference fit state diagram of the MPO adapter 1 and the ferrule limiter 2, and the shaded portion is the assembly interference amount of the two parts.

[0024] Example 2

[0025] like Figure 1 , Figure 2 , Figure 3 As shown, this embodiment is a further improvement on the basis of embodiment 1, and the details are as follows:

[0026] A wedge block 210 is provided on the inclined surface of the ferrule limiter 2, and a limit hole 120 is provided on the hole wall of the assembly hole 110 located in the wedge-shaped area. After the ferrule limiter 2 is inserted into the assembly hole 110 through the tail end of the MPO adapter 1, the wedge block 210 will be stuck in the limit hole 120, so that the ferrule limiter 2 can be completely fixed in the assembly hole 110 of the MPO adapter 1 to prevent the ferrule limiter 2 from loosening and falling off, thereby preventing the MT ferrule 3 from loosening.

[0027] Furthermore: there are two wedge blocks 210, and the two wedge blocks 210 are symmetrically located on both sides of the core limiter 2, and there are two limit holes 120, and the two limit holes 120 are symmetrically located on both sides of the assembly hole 110, which has good stability during assembly. Of course, in the actual design process, it is not ruled out that the wedge blocks 210 and the limit holes 120 adopt other numbers, such as four. At this time, the four wedge blocks 210 are located on the four sides of the core limiter 2, and the four limit holes 120 are located on the four sides of the assembly hole 110. This is only an exemplary description.

[0028] Example 3

[0029] like Figure 1 , Figure 2 , Figure 3 As shown, this embodiment is a further improvement on the basis of Embodiment 1 or 2, and the details are as follows:

[0030] The rear end of the ferrule stopper 2 has a plurality of undercuts 220 for limiting the retreat of the MT ferrule 3 , so that the MT ferrule 3 can be completely fixed in the ferrule stopper 2 to prevent the MT ferrule 3 from loosening.

[0031] Furthermore, there are four undercuts 220 , two of which are located at the upper and lower parts, and the upper undercuts 220 and the lower undercuts 220 are arranged opposite to each other, and the MT ferrule 3 is stuck between the upper and lower undercuts 220 , so as to stably fix the MT ferrule 3 .

[0032] In addition, the lower end of the upper undercut 220 has an inclined guide surface 221 , and the upper end of the lower undercut 220 has an inclined guide surface 221 , which facilitates the MT ferrule 3 to be inserted into the area between the upper and lower undercuts 220 .

[0033] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A wedge-shaped MPO buckle assembly structure, characterized in that: include: An MPO adapter (1) and a core stopper (2), wherein the assembly hole (110) axially penetrated on the MPO adapter (1) is wedge-shaped in the tail end area, and the core stopper (2) is wedge-shaped. The core stopper (2) is inserted into the assembly hole (110) through the tail end of the MPO adapter (1), and the MPO adapter (1) squeezes the core stopper (2) around the core stopper (2) through a wedge-shaped interference fit, so that the core stopper (2) is deformed by the squeezing to clamp the MT core (3) inserted therein.

2. According to claim 1, a wedge-shaped MPO buckle assembly structure is characterized in that: A wedge block (210) is provided on the inclined surface of the insert stopper (2); a stopper hole (120) is provided on the hole wall of the assembly hole (110) located in the wedge-shaped area; after the insert stopper (2) is inserted into the assembly hole (110) through the rear end of the MPO adapter (1), the wedge block (210) is snapped into the stopper hole (120).

3. According to claim 2, a wedge-shaped MPO buckle assembly structure is characterized in that: The number of the wedge blocks (210) is two, and they are symmetrically located on both sides of the core insert limiting member (2); the number of the limiting holes (120) is two, and they are symmetrically located on both sides of the assembly hole (110).

4. According to claim 1, a wedge-shaped MPO buckle assembly structure is characterized in that: The rear end of the ferrule limiting member (2) has a plurality of undercuts (220) for limiting the retreat of the MT ferrule (3).

5. According to claim 4, a wedge-shaped MPO buckle assembly structure is characterized in that: The number of the undercuts (220) is four, with two each distributed at the top and the bottom. The undercuts (220) located at the top and the undercuts (220) located at the bottom are arranged opposite to each other, and the MT ferrule (3) is clamped between the undercuts (220) distributed at the top and bottom.

6. According to claim 5, a wedge-shaped MPO buckle assembly structure is characterized in that: The lower end of the upper undercut (220) has an inclined guide surface (221), and the upper end of the lower undercut (220) has an inclined guide surface (221).

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