A reinforced woven jacket mpo connector
Patent Information
- Application Number
- CN202521385340.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-03
- Publication Date
- 2026-08-21
- Estimated Expiration
- 2035-07-03
AI Technical Summary
[0005]1、传统MPO连接器的护套直接暴露于环境中，容易受到外部压力(如土壤挤压、踩踏等)以及在敷设或使用中拉伸、牵引的出现破损，进而影响光纤的传输性能，同时弯曲过度也会导致光信号损耗
[0016]1、本实用新型在缆皮的外表面设置的有编织护套，相对传统的LSZH/PVC护套，能有效分担外力，减少光纤在敷设或使用中因拉伸、牵引导致的损伤，尤其适用于长距离架空或垂直敷设场景，且编织结构分散外部压力(如土壤挤压、踩踏等)，保护光纤免受机械应力破坏，同时提高光缆柔韧性，避免过度弯曲导致的光信号损耗，保障光纤的传输性能。
Smart Images
Figure CN224667998U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of optical communication, and in particular to a reinforced braided sheath MPO connector. Background Technology
[0002] The MPO (Multi-fiber Push-On) connector is a high-density multi-core fiber optic connector widely used in data centers, 5G networks, and indoor fiber optic cabling systems.
[0003] The cable sheath is the outermost protective layer wrapped around the cable and is a crucial component of the cable structure. It is directly exposed to the external environment and provides multiple protective functions.
[0004] Existing MPO connectors typically use LSZH or PVC for their cable sheaths, which still presents the following problems in practical indoor optical cable applications:
[0005] 1. The sheath of traditional MPO connectors is directly exposed to the environment and is easily damaged by external pressure (such as soil compression, trampling, etc.) and stretching or pulling during laying or use, which affects the transmission performance of optical fiber. At the same time, excessive bending will also lead to optical signal loss.
[0006] 2. Traditional MPO connectors have poor sheath stability. In extreme environments (such as high heat and extreme cold), they are prone to thermal expansion and contraction, which affects the transmission performance of optical fibers. Furthermore, when used in complex environments (such as chemical industrial zones and coastal areas), they have poor resistance to common chemicals such as acids, alkalis, and greases, which reduces the service life of the sheath.
[0007] 3. The sheath of traditional MPO connectors is prone to structural failure due to twisting or bending, and the sheath is directly exposed to the environment and is easily penetrated by the teeth of animals such as rats, which can damage the optical fiber. Utility Model Content
[0008] In order to overcome the above-mentioned defects of the prior art, the present invention provides a reinforced braided sheath MPO connector to solve the problems existing in the background art.
[0009] This utility model provides the following technical solution: a reinforced braided sheath MPO connector, comprising an MPO shell, a ferrule, an optical fiber, a spring, a stop, and a cable sheath. One end of the ferrule is inserted into the interior of the MPO shell, and the other end of the ferrule is sequentially connected to the optical fiber and the spring. One end of the stop is also inserted into the interior of the MPO shell until the optical fiber and the spring are pushed into the interior of the MPO shell. One end of the cable sheath is fitted with a rivet, and a braided sheath is fitted onto the outer surface of the cable sheath. One end of the braided sheath and the cable sheath are pushed to the tail of the stop and connected to it through a crimping ring.
[0010] Preferably, the braided sheath and cable jacket are crimped at the rear half of the crimping ring.
[0011] Preferably, the tail of the stop is pressed into the front half of the crimping ring.
[0012] Preferably, the outer surface of the woven sheath is further provided with a tail sleeve, and the tail sleeve is pushed onto the crimping ring and completely wraps around it.
[0013] Preferably, a dust cap is provided at one end of the MPO shell.
[0014] Preferably, the woven sheath is made of PET material.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] 1. This utility model features a braided sheath on the outer surface of the cable sheath. Compared to the traditional LSZH / PVC sheath, it can effectively distribute external forces and reduce damage to optical fibers caused by stretching and pulling during laying or use. It is especially suitable for long-distance overhead or vertical laying scenarios. The braided structure disperses external pressure (such as soil compression, trampling, etc.), protecting the optical fiber from mechanical stress damage. At the same time, it improves the flexibility of the optical cable, avoids optical signal loss caused by excessive bending, and ensures the transmission performance of the optical fiber.
[0017] 2. The braided sheath of this utility model is made of PET material. PET material has stable performance in the range of -40℃ to +70℃, making it suitable for extreme climatic conditions. In addition, the low shrinkage rate of PET material reduces the impact of thermal expansion and contraction on the transmission performance of optical fibers. At the same time, PET material has good resistance to common chemical substances such as acids, alkalis, and greases, which extends the service life of optical cables in complex environments (such as chemical areas and coastal areas).
[0018] 3. The braided sheath provided by this utility model provides uniform radial support, preventing the optical cable from failing due to twisting or bending. The dense braided layer can also prevent the teeth of animals such as rats from penetrating, reducing the risk of failure when laying cables in the field. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the exploded structure of this utility model.
[0020] Figure 2 This is a schematic diagram of the overall structure of this utility model.
[0021] The attached diagram is labeled as follows: 1. Braided sheath; 2. Cable sheath; 3. Tail sleeve; 4. Rivet; 5. Crimping ring; 6. Stop; 7. Spring; 8. Optical fiber; 9. Filament; 10. MPO outer shell; 11. Dust cap. Detailed Implementation
[0022] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of the present invention.
[0023] This utility model provides a reinforced braided sheath MPO connector, such as Figure 1-2 As shown, it includes an MPO outer shell 10, a ferrule 9, an optical fiber 8, a spring 7, a stop 6, a crimping ring 5, a rivet 4, a tail 3, a cable sheath 2, and a braided sheath 1.
[0024] Specifically, one end of the ferrule 9 is inserted into the interior of the MPO housing 10, and the other end of the ferrule 9 is connected in sequence to the optical fiber 8 and the spring 7. One end of the stop 6 is also inserted into the interior of the MPO housing 10 until the optical fiber 8 and the spring 7 are pushed into the interior of the MPO housing 10. One end of the cable sheath 2 is connected to the rivet 4, and the outer surface of the cable sheath 2 is fitted with a braided sheath 1. The braided sheath and one end of the cable sheath 2 are pushed to the tail of the stop 6 and connected to it through the crimping ring 5.
[0025] The outer surface of the cable sheath is provided with a braided sheath 1, which, compared with the traditional LSZH / PVC sheath, can effectively share external forces and reduce damage to optical fibers caused by stretching and pulling during laying or use. It is especially suitable for long-distance overhead or vertical laying scenarios. The braided structure disperses external pressure (such as soil compression, trampling, etc.), protects optical fibers from mechanical stress damage, improves the flexibility of the optical cable, avoids optical signal loss caused by excessive bending, and ensures the transmission performance of optical fibers.
[0026] The braided sheath 1 provides uniform radial support, preventing structural failure of the optical cable due to torsion or twisting. Furthermore, the dense braided layer can prevent penetration by the teeth of animals such as rats, reducing the risk of failure during field cable laying.
[0027] Furthermore, the braided sheath 1 and the cable sheath 2 are crimped onto the rear half of the crimping ring 5.
[0028] Furthermore, the tail of the stop 6 is pressed against the front half of the crimping ring 5.
[0029] The tails of the braided sheath 1, cable sheath 2, and stop 6 each occupy half of the crimping ring 5 to ensure that the forces between them are the same, thereby improving the stability of their connection.
[0030] Furthermore, the outer surface of the braided sheath 1 is also provided with a tail sleeve 3, and the tail sleeve 3 is pushed onto the crimping ring 5 and completely wrapped around it.
[0031] Furthermore, a dust cap 11 is provided at one end of the MPO housing 10.
[0032] Furthermore, the braided sheath 1 is made of PET material. PET material has stable performance in the range of -40℃ to +70℃, making it suitable for extreme climatic conditions. The low shrinkage rate of PET material reduces the impact of thermal expansion and contraction on the transmission performance of optical fibers. At the same time, PET material has good resistance to common chemicals such as acids, alkalis, and greases, extending the service life of optical cables in complex environments (such as chemical zones and coastal areas).
[0033] During assembly, first insert the insert 9 into the housing 10, then push the stop 6, and insert the spring 7 into the housing 10 together;
[0034] Then, insert the rivet 4 into the cable sheath 2, push the braided sheath 1 and the cable sheath 2 up to the end of the stop 6, and use the crimping ring 5 to crimp the braided sheath 1 and the cable sheath 2 at the same time; crimp the braided sheath 1 and the cable sheath 2 at the rear half of the crimping ring 5, and crimp the stop 6 at the front half of the crimping ring 5.
[0035] Finally, push the tail sleeve onto the crimping ring 5 and put on the dust cap 11.
[0036] Several points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change.
[0037] The above description is only a preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. Any equivalent modifications or changes made by those skilled in the art based on the content disclosed in the present utility model should be included in the protection scope recorded in the claims.
Claims
1. A reinforced braided sheath MPO connector, comprising an MPO shell (10), a ferrule (9), an optical fiber (8), a spring (7), a stop (6), and a cable sheath (2), wherein one end of the ferrule (9) is inserted into the interior of the MPO shell (10), and the other end of the ferrule (9) is sequentially connected to the optical fiber (8) and the spring (7), and one end of the stop (6) is also inserted into the interior of the MPO shell (10) until the optical fiber (8) and the spring (7) are pushed into the interior of the MPO shell (10), characterized in that: One end of the cable sheath (2) is fitted with a rivet (4), and the outer surface of the cable sheath (2) is fitted with a braided sheath (1). The braided sheath (1) and one end of the cable sheath (2) are pushed to the end of the stop (6) and connected to it through a crimping ring (5).
2. The reinforced braided sheath MPO connector according to claim 1, characterized in that: The braided sheath (1) and cable sheath (2) are crimped onto the rear half of the crimping ring (5).
3. The reinforced braided sheath MPO connector according to claim 1, characterized in that: The tail of the stop (6) is pressed against the front half of the crimping ring (5).
4. The reinforced braided sheath MPO connector according to claim 1, characterized in that: The outer surface of the woven sheath (1) is also provided with a tail sleeve (3), and the tail sleeve (3) is pushed onto the crimping ring (5) and completely wrapped around it.
5. The reinforced braided sheath MPO connector according to claim 1, characterized in that: A dust cap (11) is provided at one end of the MPO shell (10).
6. The reinforced braided sheath MPO connector according to claim 1, characterized in that: The woven sheath (1) is made of PET material.