High-speed optical fiber double-port connector for vehicle

Abstract

The utility model discloses a high-speed optical fiber double-port connector for a vehicle, which belongs to the technical field of optical fiber connectors, and comprises a plate end connector and a wire end connector, the plate end connector comprises a plate end plastic shell main body, one end of the plate end plastic shell main body is connected with a wire network tail, and the other end of the plate end plastic shell main body is connected with a wire network. Two board end interfaces are arranged at one end, far away from the wire net tail, of the board end plastic shell main body, and a PCB with a photoelectric module conversion function is arranged on the inner side of the board end plastic shell main body; the wire end connector comprises an injection molding net tail and a mistake-proof fixing plastic shell. The end, away from the injection molding net tail, of the mistake-proof fixing plastic shell is provided with a wire end interface. The number of the wire end connectors is two, and the two wire end connectors are respectively connected with the two plate end interfaces on the plate end plastic shell main body through the wire end interfaces on the error-proof fixed plastic shell. The two interfaces of the board end connector are connected with the two line end connectors, so that multi-channel connection can be realized, the stability of the simultaneous transmission process of multiple groups of signals is ensured, and the signal transmission rate is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of fiber optic connector technology, and more specifically, to a high-speed dual-port fiber optic connector for automotive applications. Background Technology

[0002] The automotive industry plays a vital role in a nation's economic development. It integrates new materials, equipment, processes, and technologies from many scientific fields, and China's automotive industry has a promising future and is currently in a phase of rapid development.

[0003] With the increasing prevalence of new automotive functions, there is a growing demand for fast and reliable transmission of larger amounts of data. Media-enabled vehicles often require the uninterrupted transmission of video and audio signals in challenging environments. However, current copper wire high-frequency signal transmission connectors on the market suffer from several drawbacks: high connector loss, a maximum transmission rate of only 10 GHz, high electromagnetic interference, stringent EMC shielding requirements, and insufficient wiring length and signal transmission rate in demanding automotive environments. Consequently, copper wire high-frequency signal transmission connectors are unsuitable for applications requiring 10 GHz speeds.

[0004] The applicant filed a patent application on July 5, 2023, with patent number ZL202321742673.5, entitled "A High-Speed ​​Fiber Optic Single-Port Connector for Vehicles". The patent improves the EMC shielding performance and transmission rate of the product. However, the single-port connector cannot meet the requirements of multi-channel applications. Therefore, our company proposes a high-speed fiber optic dual-port connector for vehicles to solve the above problems. Summary of the Invention

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a high-speed fiber optic dual-port connector for automotive applications. By setting two interfaces on the board-end connector and connecting the two interfaces of the board-end connector to two line-end connectors, multi-channel connection can be achieved, ensuring the stability of the simultaneous transmission of multiple signals and greatly improving the signal transmission rate.

[0006] A high-speed fiber optic dual-port connector for automotive applications includes a board-end connector and a wire-end connector. The board-end connector includes a board-end plastic shell body. One end of the board-end plastic shell body is connected to a wire mesh tail. Two board-end interfaces are provided at the end of the board-end plastic shell body away from the wire mesh tail. A photoelectric module conversion function PCB board is provided on the inner side of the board-end plastic shell body. A board-end plastic shell cover is snapped onto the upper end of the board-end plastic shell body.

[0007] The wire connector includes an injection-molded mesh tail and a fault-proof fixing plastic shell. A crimping fixing ring is provided inside the end of the injection-molded mesh tail near the fault-proof fixing plastic shell. The injection-molded mesh tail is fixedly connected to the inner liner rear plastic shell through the crimping fixing ring. A spring and an optical fiber ceramic ferrule are provided inside the inner liner rear plastic shell, and the spring is sleeved on the outer end of the optical fiber ceramic ferrule. The end of the optical fiber ceramic ferrule away from the spring is sleeved with the inner liner front plastic shell. A wire terminal interface is provided at the end of the fault-proof fixing plastic shell away from the injection-molded mesh tail.

[0008] Two wire-end connectors are provided, and the two wire-end connectors are connected to two board-end interfaces on the board-end plastic shell body respectively through the wire-end interface on the anti-misalignment fixing plastic shell.

[0009] Furthermore, the optoelectronic module conversion function PCB board is equipped with a chip, and a light emitter and a light receiver are provided on one side of the optoelectronic module conversion function PCB board near the two board end interfaces; the end of the light emitter away from the optoelectronic module conversion function PCB board is located inside the upper interface of the board end, and the end of the light receiver away from the optoelectronic module conversion function PCB board is located inside the lower interface of the board end.

[0010] Furthermore, the optical fiber ceramic ferrule is an LC optical fiber ceramic ferrule.

[0011] Furthermore, the main body of the plastic shell at the plate end is provided with multiple buckles, and the upper cover of the plastic shell at the plate end is provided with multiple snap holes that match the multiple buckles.

[0012] Furthermore, the outer end of the anti-misalignment fixing plastic shell is provided with a snap-fit ​​groove, and a secondary locking buckle is snapped into the snap-fit ​​groove.

[0013] Furthermore, an insertion guide block is fixedly connected to the lower end of the plate end plastic shell body near the side of the error-proof fixing plastic shell, and a guide groove matching the insertion guide block is opened inside the error-proof fixing plastic shell.

[0014] Furthermore, a second buckle is fixedly connected to the outer end of the rear plastic shell of the inner liner near the anti-misalignment fixing plastic shell, and a second locking hole matching the second buckle is opened on the outer end of the front plastic shell of the inner liner near the rear plastic shell of the inner liner.

[0015] Compared with existing technologies, the advantages of this utility model are:

[0016] (1) In this solution, the board end plastic shell body is provided with two board end interfaces. The two board end interfaces are connected to two wire end connectors respectively. By connecting the two interfaces of the board end connector to the two wire end connectors, multi-channel connection can be realized, ensuring the stability of the process of transmitting multiple groups of signals at the same time, and greatly improving the signal transmission rate.

[0017] (2) In this solution, the board end plastic shell body and the board end plastic shell cover are assembled by multiple buckles and multiple holes, which are firmly installed and can protect the internal PCB board. This enables the automotive high-speed fiber optic dual-port connector to effectively reduce connector loss and electromagnetic interference, and greatly improve the signal transmission rate.

[0018] (3) The automotive high-speed fiber optic dual-port connector in this solution has a fault-proof mechanism design. Different structures of the plastic shell are designed with different colors, which makes it easy to distinguish them from each other. This can effectively reduce the time wasted when judging the structure or function of the plastic shell during the connection.

[0019] (4) In this solution, the outer end of the anti-misalignment fixed plastic shell is provided with a snap-fit ​​groove, and a secondary locking buckle is snapped in the snap-fit ​​groove. The secondary locking buckle is snapped in the outer end of the anti-misalignment fixed plastic shell, thereby preventing the ceramic pin inside the connector from docking with the optical fiber ceramic tube, and is completely unaffected by the vibration environment and thus prevents it from loosening.

[0020] (5) In this scheme, the lower end of the plastic shell body near the anti-error fixing plastic shell is fixedly connected to the insertion guide block. The anti-error fixing plastic shell is provided with a guide groove that matches the insertion guide block. By inserting the guide groove, the optical fiber mating plug can be inserted in the center, which can ensure a secure installation and reduce the bumps, vibrations and abnormal noises during vehicle operation.

[0021] (6) In this scheme, the outer end of the inner lining rear plastic shell near the anti-misalignment fixed plastic shell is fixedly connected with buckle two, and the outer end of the inner lining front plastic shell near the inner lining rear plastic shell is provided with a card hole two that matches buckle two. By engaging buckle two with card hole two, it is not only firmly installed, but also more convenient to disassemble and assemble. Attached Figure Description

[0022] Figure 1 This is a front view of the overall structure of this utility model;

[0023] Figure 2 The back of this utility model is a schematic diagram of its overall structure.

[0024] Figure 3 This is a schematic diagram of the exploded structure of the wire-end connector in this utility model;

[0025] Figure 4 This is a schematic diagram of the connection structure between the PCB board and the main body of the board-end connector in this practical application.

[0026] Figure 5 This is a schematic diagram of the connection structure between the PCB board and the plastic shell cover of the board-end connector in this practical application.

[0027] Figure 6 This is a schematic diagram of the docking structure between the rear plastic shell and the front plastic shell of this utility model.

[0028] Explanation of the labels in the diagram:

[0029] 1. Injection-molded mesh tail; 2. Crimped fixing ring; 3. Rear plastic liner; 4. Spring; 5. Fiber optic ceramic ferrule; 6. Front plastic liner; 7. Secondary locking buckle; 8. Anti-misalignment fixing plastic shell; 9. Board end plastic shell cover; 10. Board end plastic shell body; 11. Optoelectronic module conversion function PCB board; 12. Chip; 13. Clip hole one; 14. Clip one; 15. Insertion guide block; 16. Clip two; 17. Clip hole two; 18. Mesh tail; 19. Optical transmitter; 20. Optical receiver assembly. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0031] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example

[0033] Please see Figure 1-6 A high-speed fiber optic dual-port connector for automotive applications includes a board-end connector and a wire-end connector. The board-end connector includes a board-end plastic shell body 10, one end of which is connected to a wire mesh tail 18. The end of the board-end plastic shell body 10 away from the wire mesh tail 18 is provided with two board-end interfaces. A photoelectric module conversion function PCB board 11 is provided on the inner side of the board-end plastic shell body 10. A board-end plastic shell cover 9 is snapped onto the upper end of the board-end plastic shell body 10.

[0034] The wire connector includes an injection-molded mesh tail 1 and a fault-proof fixing plastic shell 8. A crimping fixing ring 2 is provided inside the injection-molded mesh tail 1 near the fault-proof fixing plastic shell 8. The injection-molded mesh tail 1 is fixedly connected to the inner lining rear plastic shell 3 through the crimping fixing ring 2. A spring 4 and an optical fiber ceramic ferrule 5 are provided inside the inner lining rear plastic shell 3. The spring 4 is sleeved on the outer end of the optical fiber ceramic ferrule 5. The inner lining front plastic shell 6 is sleeved on the end of the optical fiber ceramic ferrule 5 away from the spring 4. A wire end interface is provided on the end of the fault-proof fixing plastic shell 8 away from the injection-molded mesh tail 1.

[0035] Two wire-end connectors are provided. The two wire-end connectors are connected to two board-end interfaces on the board-end plastic housing body 10 through the wire-end interface on the anti-misalignment fixing plastic housing 8. By connecting the two interfaces of the board-end connectors to the two wire-end connectors, multi-channel connection can be realized, ensuring the stability of the simultaneous transmission of multiple sets of signals and greatly improving the signal transmission rate.

[0036] A chip 12 is mounted on the optoelectronic module conversion PCB board 11. A light transmitter 19 and a light receiver 20 are located on one side of the PCB board 11 near the two board-end interfaces. The end of the light transmitter 19 furthest from the PCB board 11 is located inside the upper interface, and the end of the light receiver 20 furthest from the PCB board 11 is located inside the lower interface. The optoelectronic module conversion PCB board converts optical signals to electrical signals, transmits optical signals through the light transmitter 19, and receives optical signals through the light receiver 20.

[0037] The fiber optic ceramic ferrule 5 uses an LC fiber optic ceramic ferrule with a fault-proof installation interface.

[0038] The main body 10 of the board end plastic shell is provided with multiple buckles 14, and the upper cover 9 of the board end plastic shell is provided with multiple locking holes 13 that match the multiple buckles 14. The multiple buckles 14 are connected and assembled with the multiple locking holes 13, which can protect the internal PCB board and enable the automotive high-speed fiber optic dual-port connector to effectively reduce connector loss and electromagnetic interference, and greatly improve the signal transmission rate.

[0039] The outer end of the anti-misalignment fixing plastic shell 8 has a snap-fit ​​groove, and a secondary locking buckle 7 is snapped into the snap-fit ​​groove. The secondary locking buckle is snapped into the outer end of the anti-misalignment fixing plastic shell, thereby preventing the ceramic pin inside the connector from connecting with the fiber optic ceramic tube, and is completely unaffected by vibration environment to prevent loosening.

[0040] The lower end of the plate end plastic shell body 10 near the anti-error fixing plastic shell 8 is fixedly connected to the insertion guide block 15. The anti-error fixing plastic shell 8 has a guide groove that matches the insertion guide block 15. By inserting the guide groove, the optical fiber mating plug can be inserted in the center, which can ensure a secure installation and reduce the bumps, vibrations and abnormal noises during vehicle operation.

[0041] The outer end of the inner lining rear plastic shell 3 near the anti-misalignment fixing plastic shell 8 is fixedly connected with a second buckle 16. The outer end of the inner lining front plastic shell 6 near the inner lining rear plastic shell 3 is provided with a second locking hole 17 that matches the second buckle 16. The second buckle is engaged with the first locking hole to fix the lining, which not only makes the installation firm but also makes the disassembly and assembly more convenient.

[0042] This utility model relates to a high-speed automotive fiber optic dual-port connector. It connects to two wire-end connectors via two board-end connectors, enabling multi-channel connections and ensuring stability during simultaneous transmission of multiple signals, significantly improving signal transmission speed. The connector features a fault-prevention mechanism; different structures of the plastic shell are designed with different colors for easy differentiation, effectively reducing time wasted on determining shell structure or function during connection. Colors such as white, black, green, gray, and brown are available for easy identification, with different colors used to distinguish different structures. The cable uses PVC injection molding to protect the optical cable and connector, preventing breakage from external forces. Different cable exit angles can be designed to suit different automotive installation environments. The plastic shell itself has an insertion guide groove design, ensuring centered insertion of the fiber optic connector, secure installation, and preventing noise from vehicle vibrations during operation.

[0043] This utility model enables high-speed data transmission above 10GHz. The fiber optic ferrule uses a standard LC fiber optic ceramic ferrule and features a fault-proof installation interface. The fiber optic connector interface has a service life of approximately 25 cycles and is equipped with a secondary locking latch. The connector holding force is above 110N, and the operating ambient temperature is -40 to +105 degrees Celsius. The installation is secure and free from loosening or abnormal noise.

[0044] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A high-speed fiber optic dual-port connector for automotive applications, comprising a board-end connector and a wire-end connector, characterized in that: The board-end connector includes a board-end plastic shell body (10), one end of which is connected to a wire mesh tail (18), and the end of the board-end plastic shell body (10) away from the wire mesh tail (18) is provided with two board-end interfaces. A photoelectric module conversion function PCB board (11) is provided on the inner side of the board-end plastic shell body (10), and a board-end plastic shell cover (9) is snapped onto the upper end of the board-end plastic shell body (10). The wire connector includes an injection-molded mesh tail (1) and an error-proof fixing plastic shell (8). The injection-molded mesh tail (1) has a crimping fixing ring (2) inside one end near the error-proof fixing plastic shell (8). The injection-molded mesh tail (1) is fixedly connected to the inner lining rear plastic shell (3) through the crimping fixing ring (2). The inner lining rear plastic shell (3) has a spring (4) and an optical fiber ceramic ferrule (5) inside. The spring (4) is sleeved on the outer end of the optical fiber ceramic ferrule (5). The end of the optical fiber ceramic ferrule (5) away from the spring (4) is sleeved with an inner lining front plastic shell (6). The error-proof fixing plastic shell (8) has a wire end interface at the end away from the injection-molded mesh tail (1). Two wire connectors are provided, and the two wire connectors are connected to two board end interfaces on the board end plastic shell body (10) respectively through the wire end interface on the anti-misalignment fixing plastic shell (8).

2. The high-speed fiber optic dual-port connector for automotive applications according to claim 1, characterized in that: The photoelectric module conversion function PCB board (11) is equipped with a chip (12). The photoelectric module conversion function PCB board (11) is provided with a light emitter (19) and a light receiver component (20) on one side near the two board end interfaces. The end of the light emitter (19) away from the photoelectric module conversion function PCB board (11) is located inside the upper interface of the board end, and the end of the light receiver component (20) away from the photoelectric module conversion function PCB board (11) is located inside the lower interface of the board end.

3. The high-speed fiber optic dual-port connector for automotive applications according to claim 1, characterized in that: The optical fiber ceramic ferrule (5) is an LC optical fiber ceramic ferrule.

4. A high-speed fiber optic dual-port connector for automotive applications according to claim 1, characterized in that: The plate end plastic shell body (10) is provided with multiple buckles (14), and the plate end plastic shell cover (9) is provided with multiple buckle holes (13) that match the multiple buckles (14).

5. A high-speed fiber optic dual-port connector for automotive applications according to claim 1, characterized in that: The outer end of the anti-misalignment fixed plastic shell (8) is provided with a snap-fit ​​groove, and a secondary lock (7) is snapped into the snap-fit ​​groove.

6. A high-speed fiber optic dual-port connector for automotive applications according to claim 1, characterized in that: The lower end of the plate end plastic shell body (10) near the anti-error fixing plastic shell (8) is fixedly connected to an insertion guide block (15), and the anti-error fixing plastic shell (8) has a guide groove that matches the insertion guide block (15).

7. A high-speed fiber optic dual-port connector for automotive applications according to claim 1, characterized in that: The outer end of the inner lining rear plastic shell (3) near the anti-misalignment fixing plastic shell (8) is fixedly connected with a buckle two (16), and the outer end of the inner lining front plastic shell (6) near the inner lining rear plastic shell (3) is provided with a buckle hole two (17) that matches the buckle two (16).

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