Fused end type optical fiber connector with dustproof structure
By introducing a dustproof structure into the fiber optic connector, including components such as a protective housing and dustproof end caps, the problem of dust contamination is solved, achieving a good dustproof effect and improving the connector's service life and signal transmission quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU AOKE PHOTOELECTRIC EQUIP CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-05-19
AI Technical Summary
Fusion-terminated fiber optic connectors are susceptible to dust contamination during use, which can lead to increased optical signal transmission loss and connection failures, affecting their lifespan and performance stability.
A fiber optic connector with a dustproof structure was designed, including components such as a protective shell, a dustproof end cap, a connector frame, and a dustproof sleeve. It protects the connection end and cable connection by sealing, preventing dust from entering the connector.
It effectively prevents dust from adhering and entering, reduces optical signal transmission loss, improves the lifespan and performance stability of the connector, and allows for easy disassembly of the dustproof structure during use.
Smart Images

Figure CN224263436U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of optical fiber connector technology, specifically, it relates to a fusion-type optical fiber connector with a dustproof structure. Background Technology
[0002] Optical fiber, as a highly efficient and high-speed transmission medium, has been widely used in various fields. An optical fiber connector is a device that provides a detachable (movable) connection between optical fibers. It precisely aligns the two end faces of the fibers to maximize the coupling of light energy from the transmitting fiber to the receiving fiber, and minimizes the impact on the system caused by its intervention in the optical link.
[0003] As a key component of fiber optic connections, the performance of fusion-terminated fiber optic connectors directly affects the quality of fiber optic communication. However, in practical use, fusion-terminated fiber optic connectors face the problem of dust contamination. Dust and other impurities easily adhere to the connector's end face and internal structure, leading to increased optical signal transmission loss and even connection failure, thus affecting the connector's lifespan and performance stability.
[0004] In view of the above, this utility model is hereby proposed. Utility Model Content
[0005] To address the dust contamination problem faced by fusion-terminated fiber optic connectors during practical use, the basic concept of the technical solution adopted in this utility model is as follows:
[0006] A fusion-type fiber optic connector with a dustproof structure includes a connector body and a protective shell. The connector body is installed inside the protective shell. The connector body has a connecting end and an end cap at its end. The connecting end is located inside the end cap and extends to the outside of the end cap. A dustproof end cap is provided on one side of the connector body. Both the connecting end and the end cap are located inside the dustproof end cap. The outer wall of the end cap contacts the inner wall of the dustproof end cap. An L-shaped connecting frame is fixedly provided on the outer wall of the dustproof end cap. A connecting groove is opened at the end of the connecting frame. A connecting plate is fixedly provided on one side of the protective shell. The connecting plate is connected to the connecting groove.
[0007] In a preferred embodiment of this utility model, a cable is connected to the connector body, and a dustproof sleeve is fixedly provided at the connection between the connector body and the cable.
[0008] In a preferred embodiment of the present invention, a movable groove is provided on the inner wall of the bottom of the connecting groove, and a wedge-shaped limiting block is slidably provided on the inner wall of the movable groove.
[0009] In a preferred embodiment of this utility model, a limiting slot is provided on the connecting plate, and the limiting block is connected to the limiting slot.
[0010] In a preferred embodiment of this utility model, a spring is installed on the inner wall of the bottom of the movable groove, and the top of the spring is connected to the outer wall of the bottom of the limiting block.
[0011] In a preferred embodiment of the present invention, a rectangular opening is provided on one side of the connecting frame, and a connecting block is slidably provided on the inner wall of the rectangular opening. The connecting block is fixedly connected to the outer wall of one side of the limiting block, and the movable groove communicates with the rectangular opening.
[0012] Compared with the prior art, the present invention has the following advantages:
[0013] This invention provides a dustproof end cap that seals and protects the connector end and the outer end cap, preventing dust from adhering to the connector end when the connector body is idle. It also prevents dust from entering the connector body through the outer end cap, achieving a good dustproof effect. This effectively blocks dust from entering the connector, reduces optical signal transmission loss, and improves the connector's lifespan and performance stability. When the connector needs to be used, simply remove the dustproof end cap.
[0014] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description
[0015] In the attached diagram:
[0016] Figure 1 This is a schematic diagram of the main structure of a fusion-terminal fiber optic connector with a dustproof structure according to this utility model.
[0017] Figure 2 This is a schematic diagram of the main structure of the connector body when the dustproof end cap of the fusion-type fiber optic connector with a dustproof structure is removed.
[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the dustproof end cap and the outer end cap of a fusion-type fiber optic connector with a dustproof structure according to the present invention.
[0019] Figure 4 This is a schematic cross-sectional view of the connection frame and connection plate of a fusion-terminated fiber optic connector with a dustproof structure according to this utility model.
[0020] Figure 5 This is a partial structural diagram of the connector frame of a fusion-type fiber optic connector with a dustproof structure according to this utility model.
[0021] In the diagram: 1. Connector body; 2. Protective shell; 3. Cable; 4. Dustproof sleeve; 5. Dustproof end cap; 6. Connecting frame; 7. Connecting plate; 8. Connecting end; 9. End cap; 10. Limiting slot; 11. Connecting groove; 12. Movable groove; 13. Limiting block; 14. Spring; 15. Connecting block. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.
[0023] like Figures 1 to 5 As shown
[0024] A fusion-type fiber optic connector with a dustproof structure includes a connector body 1 and a protective shell 2. The connector body 1 is installed inside the protective shell 2. A connecting end 8 and an end cap 9 are provided at the end of the connector body 1. The connecting end 8 is located inside the end cap 9, and its end extends to the outside of the end cap 9. A dustproof end cap 5 is provided on one side of the connector body 1. Both the connecting end 8 and the end cap 9 are located inside the dustproof end cap 5. The outer wall of the end cap 9 contacts the inner wall of the dustproof end cap 5. The dustproof end cap 5 provides a sealing protection for the connecting end 8 and the end cap 9, preventing dust accumulation when the connector body 1 is idle. On the connecting end 8 of the connector body 1, dust can be prevented from entering the interior of the connector body 1 through the end cover 9, achieving a good dustproof effect. An L-shaped connecting frame 6 is fixedly installed on the outer wall of the dustproof end cover 5. A connecting groove 11 is opened at the end of the connecting frame 6. A connecting plate 7 is fixedly installed on one side of the protective shell 2. The connecting plate 7 is connected to the connecting groove 11. A cable 3 is connected to the connector body 1. A dustproof sleeve 4 is fixedly installed at the connection between the connector body 1 and the cable 3, which can seal and protect the connection between the connector body 1 and the cable 3, preventing dust from entering the interior of the connector body 1 through the connection between the cable 3 and the connector body 1.
[0025] In a specific embodiment, a movable groove 12 is formed on the inner wall of the bottom of the connecting groove 11. A wedge-shaped limiting block 13 is slidably disposed on the inner wall of the movable groove 12. A limiting slot 10 is formed on the connecting plate 7. The limiting block 13 is connected to the limiting slot 10. A spring 14 is installed on the inner wall of the bottom of the movable groove 12. The top end of the spring 14 is connected to the outer wall of the bottom of the limiting block 13. A rectangular opening is formed on one side of the connecting frame 6, and a connecting block 15 is slidably disposed on the inner wall of the rectangular opening. The connecting block 15 is fixedly connected to the outer wall of one side of the limiting block 13. 12 communicates with the rectangular opening. When the connector body 1 is needed, push the connecting block 15 to move. The connecting block 15 drives the limiting block 13 to move, so that the limiting block 13 disengages from the limiting slot 10. After the limiting block 13 disengages from the limiting slot 10, pull the connecting frame 6 to move. The connecting frame 6 drives the dustproof end cover 5 to move until the dustproof end cover 5 disengages from the position of the connecting end 8, thereby disassembling the dustproof end cover 5. After the dustproof end cover 5 is disassembled, the connector body 1 can be used.
[0026] The implementation principle of a fusion-type fiber optic connector with a dustproof structure in this embodiment is as follows: In specific use, the dustproof end cap 5 provides a sealing protection for the connection end 8 and the outer end cap 9, preventing dust from adhering to the connection end 8 of the connector body 1 when the connector body 1 is idle. Simultaneously, it prevents dust from entering the interior of the connector body 1 through the outer end cap 9, achieving a good dustproof effect. Furthermore, the dustproof sleeve 4 provides a sealing protection for the connection between the connector body 1 and the cable 3, preventing dust from entering through the cable 3 and the connector. The connection point of the main body 1 enters the interior of the connector body 1, further improving the dustproof effect. When the connector body 1 needs to be used, push the connecting block 15 to move it. The connecting block 15 drives the limiting block 13 to move, so that the limiting block 13 disengages from the limiting slot 10. After the limiting block 13 disengages from the limiting slot 10, pull the connecting frame 6 to move it. The connecting frame 6 drives the dustproof end cover 5 to move until the dustproof end cover 5 disengages from the position of the connecting end 8, thus realizing the disassembly of the dustproof end cover 5. After the dustproof end cover 5 is disassembled, the connector body 1 can be used.
Claims
1. A fusion-type fiber optic connector with a dustproof structure, comprising a connector body (1) and a protective shell (2), characterized in that, The connector body (1) is installed inside the protective shell (2). The connector body (1) is provided with a connecting end (8) and an end cover (9) at its end. The connecting end (8) is located inside the end cover (9) and extends to the outside of the end cover (9). A dustproof end cover (5) is provided on one side of the connector body (1). The connecting end (8) and the end cover (9) are both located inside the dustproof end cover (5). The outer wall of the end cover (9) is in contact with the inner wall of the dustproof end cover (5). An L-shaped connecting frame (6) is fixedly provided on the outer wall of the dustproof end cover (5). A connecting groove (11) is opened at the end of the connecting frame (6). A connecting plate (7) is fixedly provided on one side of the protective shell (2). The connecting plate (7) is connected to the connecting groove (11).
2. The fusion-type fiber optic connector with a dustproof structure according to claim 1, characterized in that, A cable (3) is connected to the connector body (1), and a dustproof sleeve (4) is fixedly provided at the connection between the connector body (1) and the cable (3).
3. The fusion-terminated fiber optic connector with a dustproof structure according to claim 1, characterized in that, The bottom inner wall of the connecting groove (11) is provided with a movable groove (12), and a wedge-shaped limiting block (13) is slidably provided on the inner wall of the movable groove (12).
4. A fusion-terminal fiber optic connector with a dustproof structure according to claim 3, characterized in that, The connecting plate (7) has a limiting slot (10) and the limiting block (13) is connected to the limiting slot (10).
5. A fusion-type fiber optic connector with a dustproof structure according to claim 3, characterized in that, A spring (14) is installed on the inner wall of the bottom of the movable groove (12), and the top of the spring (14) is connected to the outer wall of the bottom of the limiting block (13).
6. A fusion-terminated fiber optic connector with a dustproof structure according to claim 3, characterized in that, The connecting frame (6) has a rectangular opening on one side, and a connecting block (15) is slidably arranged on the inner wall of the rectangular opening. The connecting block (15) is fixedly connected to the outer wall of the limiting block (13) on one side, and the movable groove (12) is connected to the rectangular opening.