Multi-core plug-in type connector with fool-proof structure design

Abstract

The utility model discloses a multi-core plug-in type connector with fool-proof structural design, which relates to the technical field of optical fiber communication and comprises a plug core body, a plug core step and an optical fiber protective sleeve, the plug core step is mounted at the top end of the plug core body, a rectangular cavity is formed in the front end face of the plug core step, and the optical fiber protective sleeve is fixedly sleeved in the rectangular cavity. An identification structure is arranged at the tail end of the ferrule body and comprises the number of optical fiber holes, an identification long groove is formed in the top of the rear end of the identification structure, a rectangular groove is formed in the ferrule body close to the identification long groove, and optical fiber hole number identification is arranged on the embedded face in the rectangular groove. According to the MT / MPO ferrule, the visual structure is arranged on the ferrule body, the visual identification long groove is additionally formed in the end face of the top of the ferrule body of the MT / MPO ferrule, so that an operator can rapidly judge whether the grinding amount of the ferrule is moderate or not, the percent of pass of products is increased, the scrapping situation caused by the improper grinding amount is reduced, and therefore the production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of optical fiber communication technology, specifically to a multi-core plug-in connector with a foolproof structural design. Background Technology

[0002] During the grinding process, the amount of grinding of the MT / MPO ferrule must be strictly controlled. The total length of the conventional MT / MPO ferrule after grinding must be controlled above 7.9mm. If it is less than 7.9mm, it will affect the transmission performance of the entire optical signal link, causing fluctuations in optical data or even performance degradation.

[0003] Because the grinding process of MT / MPO ferrules is affected by various factors such as grinding equipment, consumables, processes, and batches, and even includes secondary rework, the grinding amount varies significantly. To ensure that the length of the ground MT / MPO ferrules meets the requirement of at least 7.9mm, the length of each ferrule must be measured using measuring tools after grinding. This process is complex and easily overlooked by operators, leading to the need to measure and identify defective products one by one during subsequent inspection. Utility Model Content

[0004] The purpose of this utility model is to provide a multi-core plug-in connector with a foolproof structure design that improves the product qualification rate, reduces scrap due to improper grinding, and lowers production costs, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-core plug-in connector with a foolproof structural design, comprising a ferrule body, a ferrule step, and an optical fiber protective sleeve. The ferrule body has a ferrule step installed at its top, and a rectangular cavity is formed on the front face of the ferrule step, inside which the optical fiber protective sleeve is provided. The ferrule body has an identification structure at its tail end, the identification structure including an optical fiber hole number indicator. An identification slot is formed at the top of the rear end of the identification structure, and a rectangular slot is formed on the ferrule body near the identification slot. An optical fiber hole number indicator is provided on the embedded surface of the rectangular slot. A visual structure is provided on the ferrule body.

[0006] Preferably, the ferrule body has two first guide pin holes at its tail end and the ferrule step at its front end, and the ferrule step has two second guide pin holes at its front end face. The ferrule step is fitted onto the front end of the ferrule body, and the first guide pin holes penetrate the ferrule step and the ferrule body.

[0007] Preferably, the sides of the ferrule body are rounded.

[0008] Preferably, the visual structure includes a dispensing window, a rectangular channel is provided on the top end face of the ferrule body, and a dispensing window is fixedly provided inside the channel. An optical fiber guide groove is fixedly connected to the bottom of the ferrule body. The optical fiber guide groove is located directly below the dispensing window, and a plurality of guide grooves are provided on the top end face of the optical fiber guide groove.

[0009] Preferably, the distance between the marking groove and the front end face of the insert step is controlled to be ≥7.9 mm.

[0010] Preferably, the rear end face of the ferrule body has a reserved optical fiber hole that communicates with the guide groove.

[0011] Compared with the prior art, the beneficial effects of this utility model are: by adding a visual marking groove to the top end face of the MT / MPO ferrule body, the operator can quickly judge whether the grinding amount of the ferrule is appropriate. The edge of the marking groove is set 7.9 mm away from the front end face of the ferrule step. This design not only improves the product qualification rate, but also reduces the scrap caused by improper grinding amount, thereby reducing production costs.

[0012] Secondly, the marking structure of this utility model also includes a marking for the number of fiber optic holes, which is a foolproof structural design that further enhances the visibility and accuracy of the marking. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a three-dimensional structural diagram of the present invention from another angle;

[0015] Figure 3 This is a three-dimensional structural diagram of the present invention, excluding the dispensing window and the number of fiber optic holes.

[0016] Figure 4 for Figure 3 A schematic diagram of the three-dimensional structure from another angle;

[0017] Figure 5 This is a cross-sectional view of the overall structure of this utility model from a top perspective.

[0018] In the diagram: 1. Fertilizer body; 101. First guide pin hole; 102. Reserved fiber optic hole; 2. Fertilizer step; 201. Second guide pin hole; 202. Rectangular cavity; 3. Fiber optic protective sleeve; 4. Visualization structure; 401. Adhesive dispensing window; 402. Fiber optic guide groove; 403. Guide groove; 5. Identification structure; 501. Rectangular groove; 502. Fiber optic hole quantity indicator; 503. Identification long groove. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-5 The diagram shows a multi-core plug-in connector with a foolproof design, including a ferrule body 1, a ferrule step 2, and an optical fiber protective sleeve 3. The ferrule body 1 has a ferrule step 2 installed at its top. A rectangular cavity 202 is formed on the front face of the ferrule step 2, and the optical fiber protective sleeve 3 is fixedly fitted inside it. An identification structure 5 is provided at the rear end of the ferrule body 1. The identification structure 5 includes an optical fiber hole number indicator 502. An identification slot 503 is formed at the top of the rear end of the identification structure 5. A rectangular slot 501 is formed near the identification slot 503 on the ferrule body 1. The optical fiber hole number indicator 502 is embedded in the rectangular slot 501. A visual structure 4 is provided on the ferrule body 1.

[0021] It is worth noting that a very obvious visual marking groove 503 is added to one end of the top face of the ferrule body 1 of the MT / MPO ferrule. The edge of the marking groove 503 is 7.9 mm away from the end of the fiber optic protective sleeve 3. After grinding, if the edge line of the visual marking groove 503 is still clearly visible, it indicates that the grinding amount is appropriate and the length of the MT / MPO ferrule meets the standard. Conversely, if the edge line is not obvious, it indicates that the length of the MT / MPO ferrule is too short and must be scrapped. This allows for quick judgment of whether the grinding amount of the MT / MPO ferrule is appropriate, thereby improving production efficiency and quality control. The setting of the edge of the visual marking groove 503 to the end of the fiber optic protective sleeve 3 at 7.9 mm not only improves the product qualification rate but also reduces scrap due to improper grinding amount, thus reducing production costs.

[0022] The rectangular slot 501 has an embedded surface with a fiber optic hole count indicator 502. This indicator 502 clearly marks the number of fiber optic holes inside the ferrule body 1 using numbers or symbols. This design allows operators to quickly identify the number of fiber optic holes in the ferrule during installation or maintenance, avoiding connection errors or signal transmission problems caused by misoperation. The addition of the fiber optic hole count indicator 502 not only improves the ease of use of the product but also further enhances its reliability and stability, meeting the high precision and high efficiency requirements of modern communication fields for multi-core plug-in connectors. The figure shows an 8-core fiber optic hole structure, but please note that it is not limited to 8 cores.

[0023] Please see Figure 3 , Figure 4 and Figure 5 The ferrule body 1 has two first guide pin holes 101 at its tail end, and the ferrule step 2 has two second guide pin holes 201 at its front end. The ferrule step 2 is sleeved on the front end of the ferrule body 1, and the first guide pin holes 101 penetrate the ferrule body 1 and the ferrule step 2.

[0024] The second guide pin hole 201 is adapted to the guide pin. The guide pin passes through the second guide pin hole 201 and is inserted into the guide pin hole of the other end of the ferrule body, realizing a stable connection between the two ferrules. This connection method is not only simple in structure and easy to operate, but also effectively ensures the accuracy of ferrule mating and prevents loosening or falling off during use. Furthermore, the ferrule step 2 is fitted onto the front end of the ferrule body 1, which can quickly align the second guide pin hole 201 with the first guide pin hole 101, thereby achieving rapid positioning and installation.

[0025] Please refer to Figure 1 The sides of the insert body 1 are all rounded.

[0026] This design not only enhances the product's aesthetics but also strengthens the durability of the ferrule body 1, preventing damage caused by sharp edges and corners. The rounded corners make the ferrule body 1 safer during processing and use, reducing the risk of injury to operators. At the same time, the rounded corners can effectively reduce friction between the ferrule body 1 and the surrounding environment, making the product easier to install and remove, and improving work efficiency.

[0027] See Figure 2 , Figure 3 and Figure 4 The visual structure 4 includes a dispensing window 401, a rectangular channel 402 is provided on the top end face of the ferrule body 1, and a dispensing window 401 is fixedly provided inside the channel. An optical fiber guide groove 403 is fixedly connected to the bottom of the ferrule body 1. The optical fiber guide groove 403 is located directly below the dispensing window 401, and a plurality of guide grooves 404 are provided on the top end face of the optical fiber guide groove 403.

[0028] These guide slots 404 are designed to guide the arrangement of optical fiber lines, ensuring that the optical fiber lines can pass neatly and orderly through the space below the dispensing window 401 and reach the designated connection position. The use of the dispensing window 401 allows operators to intuitively observe the connection status of the optical fiber lines and perform visual inspection without disassembling the ferrule body 1, thus improving the convenience and efficiency of operation.

[0029] The distance between the long slot 503 and the front end face of the ferrule step 2 is 7.9 mm. The total length of the conventional MT / MPO ferrule after grinding must be controlled at 7.9 mm. If it is less than 7.9 mm, it will affect the transmission performance of the entire optical signal link, causing fluctuations in optical data or even performance degradation.

[0030] See Figure 3 The rear end face of the ferrule body 1 is provided with a reserved optical fiber hole 102 that communicates with the guide groove 404.

[0031] The design of these reserved fiber optic holes 102 is ingeniously connected to the guide groove 404, providing a direct channel for the fiber optic cable from the inside to the outside of the ferrule body 1. After the fiber optic cable is neatly arranged through the guide groove 404, it can be smoothly led out through the reserved fiber optic holes 102, which is convenient for operation.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-core plug-in connector with a fool-proof structure design, comprising a plug-in core body (1), a plug-in core step (2) and a fiber protection sleeve (3), characterized in that, The ferrule body (1) has a ferrule step (2) installed at the top. A rectangular cavity (202) is opened on the front end face of the ferrule step (2), and an optical fiber protective sleeve (3) is fixedly fitted inside it. A marking structure (5) is set at the tail end of the ferrule body (1). The marking structure (5) includes an optical fiber hole number marking (502). A marking long groove (503) is opened at the top of the rear end position of the marking structure (5). A rectangular groove (501) is opened near the marking long groove (503) of the ferrule body (1). An optical fiber hole number marking (502) is set on the embedded surface of the rectangular groove (501). A visual structure (4) is set on the ferrule body (1).

2. The multi-core plug-in connector with a fool-proof structure design according to claim 1, characterized in that: The ferrule body (1) has two first guide pin holes (101) at its tail end, and the ferrule step (2) has two second guide pin holes (201) at its front end. The ferrule step (2) is fitted onto the front end of the ferrule body (1), and the first guide pin holes (101) penetrate the ferrule step (2) and the ferrule body (1).

3. The multi-core plug-in connector with a fool-proof structure design according to claim 1, characterized in that: The sides of the insert body (1) are all rounded.

4. The multi-core plug-in connector with a fool-proof structure design according to claim 1, characterized in that: The visual structure (4) includes a dispensing window (401), a rectangular channel (402) is opened on the top end face of the ferrule body (1), and a dispensing window (401) is fixedly installed inside it. An optical fiber guide groove (403) is fixedly connected to the bottom inside the ferrule body (1). The optical fiber guide groove (403) is located directly below the dispensing window (401), and several guide grooves (404) are opened on the top end face of the optical fiber guide groove (403).

5. The multi-connector plug-in connector with the fool-proof structure design according to claim 1, characterized in that: The distance between the marking groove (503) and the front end face of the insert step (2) is controlled to be ≥7.9 mm.

6. The multi-core plug-in connector with a fool-proof structure design according to claim 4, characterized in that: The rear end face of the ferrule body (1) is provided with a reserved optical fiber hole (102) that communicates with the guide groove (404).

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