Optical and electrical connector for vehicle and optical and electrical preformed cable

Abstract

The utility model discloses a kind of vehicle-mounted photoelectric connector and photoelectric prefabricated cable, belong to connector technical field, photoelectric connector includes shell, inner core subassembly and electricity terminal, the plug-in end of shell is formed with the inner core through slot for the inner core subassembly embedding and the terminal through slot for the electricity terminal embedding, so that the optical fiber unit and wire unit in photoelectric composite cable can be introduced into shell simultaneously and connect ferrule and electricity terminal respectively, realize the optical communication and electric conduction function of connector.Simultaneously, through the detachable connection design of inner core end cover and inner core in inner core subassembly, so that the components of inner core subassembly can be preassembled as overall structure for easy transfer before assembling shell, facilitate the transfer processing of assembly between different processes, improve the reliability in photoelectric connector assembly manufacturing process.In the utility model, photoelectric connector can realize simultaneous transmission of optical signal and power, meet the setting requirement of photoelectric connector, and improve the convenience of photoelectric connector disassembly.

Description

Technical Field

[0001] This utility model belongs to the field of connector technology, specifically relating to an automotive optoelectronic connector and an optoelectronic prefabricated cable. Background Technology

[0002] With the automotive industry accelerating its move towards intelligent and connected development, intelligent connected vehicles have become a commanding height in global technological and industrial competition. As perception systems, decision-making and control, and interactive experiences continue to improve, future intelligent vehicles will require an increasing number of high-precision sensing devices, such as 4K high-definition cameras, high-line-count LiDAR, and millimeter-wave radar. This leads to enormous data transmission demands on automotive systems. For example, a single 4K camera can achieve a data transmission rate exceeding 10Gbps at 60FPS, while LiDAR can reach 1Gbps. The total bandwidth requirement for the vehicle's backbone network is expected to reach 25-50Gbps.

[0003] Faced with such massive data transmission demands, traditional copper cable communication methods are proving unsustainable, suffering from bandwidth bottlenecks, complex cabling, excessive weight, and insufficient anti-interference capabilities, making them inadequate for the data transmission needs of intelligent connected vehicles. In contrast, fiber optic communication technology possesses inherent advantages such as high bandwidth, low loss, resistance to electromagnetic interference, light weight, and small size, making it the preferred solution for large data transmissions and an ideal choice for upgrading intelligent connected vehicle communication systems. However, while fiber optic communication technology has mature applications in other communication fields, its application scenarios and data transmission characteristics in the intelligent vehicle field mean that mature technologies from other fields often cannot be directly transferred to automobiles, requiring targeted design and improvements. Utility Model Content

[0004] In response to one or more of the above-mentioned defects or improvement needs of the existing technology, this utility model provides an automotive optoelectronic connector and optoelectronic prefabricated cable, which can replace the traditional copper cable communication method with optical communication, meet the connection setting requirements of automotive optoelectronic connectors, greatly improve the data transmission capability of the connector, and meet the huge data transmission needs of intelligent connected vehicles.

[0005] To achieve the above objectives, one aspect of this utility model provides a vehicle-mounted optoelectronic connector, which includes a housing having cavities communicating at both axial ends, and an inner core assembly and electrical terminals that can be detached and installed within the housing. One end of the outer shell is a wiring terminal for connecting to the optical fiber composite cable, and the other end is a plug-in terminal for plugging into the female connector. The plug-in terminal is provided with an inner core through groove and a terminal through groove. The power terminal is used to connect to the wire unit in the optoelectronic composite cable and can be embedded in the terminal through slot; The inner core assembly includes a ferrule, a spring, an inner core, and an inner core end cap; wherein, the ferrule is used to connect with the optical fiber unit in the optoelectronic composite cable; one end of the spring can be sleeved and abut against the tail end of the ferrule, and the other end of the spring can be inserted into one end of the inner core and axially limited; the inner core end cap is detachably connected to one end of the inner core, so that after the ferrule and the spring are assembled together, the inner core end cap can limit the inner core to one end, and the inner core with the inner core end cap connected can be aligned and embedded into the inner core through slot and fixed.

[0006] As a further improvement of this utility model, the inner core assembly also includes a dust cap, one end of which can be sleeved on the outer periphery of the end of the insert and detachably connected to the end of the inner core end cap.

[0007] As a further improvement of this utility model, the detachable connection between the inner core end cap and the inner core is a snap-fit ​​connection, a threaded connection, or a limiting member connection. and / or The detachable connection between the inner core end cap and the dust cap is a snap-fit ​​connection or a threaded connection.

[0008] As a further improvement of this utility model, an assembly through groove communicating with the inner cavity is provided on the outer periphery of the terminal, and a shell cover is provided accordingly. The cover can be installed and removed in the assembly channel, and the assembly channel can be sealed by installing the cover in the assembly channel.

[0009] As a further improvement of this utility model, the end of the inner core facing away from the ferrule is used to simultaneously connect the optical fiber unit and the wire unit, and an opening is provided in the middle of the inner core. The opening is positioned so that, after the inner core assembly is embedded in the inner core through slot, it faces the terminal through slot, allowing a wire unit introduced from one end of the inner core to extend from the opening and connect to the power terminal.

[0010] As a further improvement of this utility model, the power terminals are arranged in pairs, and the terminal through slot includes two embedded cavities arranged side by side; The axes of the inner core through groove and the terminal through groove are parallel to the axis of the outer shell, respectively; and the terminal through groove and the inner core through groove are arranged in layers and staggered, so that the distance between the central axis of the inner core through groove and the central axis of the two embedded cavities is not equal.

[0011] As a further improvement of this utility model, the end of the plug-in terminal is configured as a non-rotating body structure; and / or, a plurality of anti-foolproof units are provided circumferentially on the outer periphery or end face of the end of the plug-in terminal. and / or A locking mechanism is provided on the outer periphery of the plug-in end for locking the alignment after the plug-in end is plugged into the female head.

[0012] As a further improvement of this utility model, a ferrule protective sleeve is provided on the end face of the plug-in end along the axial direction of the inner core through groove to protect the end face of the ferrule; after the ferrule is assembled in the outer shell, its end face extends into the ferrule protective sleeve, and the end face of the ferrule does not protrude from the ferrule protective sleeve. As a further improvement of this utility model, an arc-shaped slot is provided around the outer periphery of the inner core, and a limiting slot is provided around the outer periphery of the outer shell; the arc-shaped slot can be aligned with the limiting slot after the inner core assembly is embedded in the inner core through slot; and the vehicle-mounted optoelectronic connector also includes a limiting card; one side of the limiting card can be engaged in the arc-shaped slot after passing through the limiting slot, and the other side of the limiting card is located in the limiting slot, thereby realizing the axial locking of the inner core; and / or The inner core includes an inner core body and an inner core metal insert; the inner core metal insert is detachably connected or fixedly connected to the end of the inner core body away from the insert, and is used for threading the optoelectronic composite cable and fixing the end of the optoelectronic composite cable. and / or It also includes a tail sleeve, one end of which can be sleeved onto one end of the inner core for connection to the optoelectronic composite cable.

[0013] Another aspect of this utility model is to provide a prefabricated optoelectronic cable, including an inner core assembly and an optoelectronic composite cable connected thereto. The inner core assembly includes a insert, a spring, an inner core, and an inner core end cap; the inner core has an inner hole, and an opening communicating with the inner hole is formed on the outer periphery of its middle portion; the tail end of the insert, after being assembled with the spring, is embedded into the inner hole at one end of the inner core; the inner core end cap is detachably connected to the end of the inner core where the insert is assembled, and axially limits the insert to the end of the inner core; and The optoelectronic composite cable includes an optical fiber unit and a wire unit; the optoelectronic composite cable is introduced into the inner core from the end of the inner core away from the ferrule, so that the optical fiber unit extends along the inner hole and is connected to the ferrule, and the wire unit is led out from the opening.

[0014] Another aspect of this utility model provides a photoelectric prefabricated cable, which includes the aforementioned vehicle-mounted photoelectric connector and a photoelectric composite cable with one end assembled and connected to the vehicle-mounted photoelectric connector. The optoelectronic composite cable includes an optical fiber unit and a wire unit; wherein the wire unit is connected to the power receiving terminal, and the power receiving terminal is embedded in the terminal through slot; The optical fiber unit passes through the inner core and is connected to the ferrule; the tail end of the ferrule abuts against the spring sleeve and is embedded into one end of the inner core; the inner core end cap is connected to one end of the inner core to achieve axial positioning of the ferrule; and the inner core and the inner core end cap are assembled together and embedded and fixed in the inner core through groove.

[0015] The aforementioned improved technical features can be combined with each other as long as they do not conflict with each other.

[0016] In summary, the beneficial effects of the above-described technical solutions conceived by this utility model compared with the prior art include: This utility model discloses an automotive-grade optoelectronic connector, comprising a housing, an inner core assembly, and electrical terminals. The housing has an inner core through-slot for embedding the inner core assembly and a terminal through-slot for embedding the electrical terminals within its insertion end. This allows the fiber optic unit and wire unit in the optoelectronic composite cable to be simultaneously introduced into the housing and connected to the ferrule and electrical terminals respectively, realizing the connector's optical communication and electrical conduction functions. Furthermore, the detachable connection design between the inner core end cap and the inner core of the inner core assembly allows the components of the inner core assembly to be pre-assembled into a single structure before assembling the housing, facilitating the embedding and assembly of the inner core assembly and improving the ease of assembly of the optoelectronic connector. The aforementioned design of the automotive-grade optoelectronic connector provides the necessary conditions for its installation and effectively ensures the reliable installation of the fiber optic conduction unit and electrical conduction unit within the connector. This ensures the connector possesses both signal and power transmission capabilities while significantly improving the data transmission rate and quality.

[0017] Secondly, based on the inner core assembly with an inner core end cap in this utility model, the inner core assembly can be pre-assembled with the optoelectronic composite cable as an optoelectronic prefabricated cable before being assembled with the outer shell. The inner core end cap completes the limiting of the ferrule at the end of the inner core after it is connected to the optical fiber unit, ensuring the integrity of the assembly after the optical connection operation is completed. This provides conditions for the separate work stations and separate process assembly of optical connection operation and electrical connection operation, ensuring the reliability of component transfer in each link during the optoelectronic connector assembly process, and improving the efficiency and quality of optoelectronic connector assembly.

[0018] Furthermore, the fiber optic connector and the optoelectronic prefabricated cable based on the optoelectronic connector in this utility model have a compact structure and simple assembly. They can simultaneously meet the transmission of data signals and power. Based on the access of the optoelectronic composite cable, the connector is guaranteed to have the function of power transmission. On this basis, the efficiency and quality of data transmission of the connector are improved, making the connector particularly suitable for the application requirements in the field of intelligent connected vehicles, realizing the optimization and improvement of traditional copper cable connectors in the automotive field. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a cross-sectional view of the vehicle-mounted optoelectronic connector in an embodiment of this utility model; Figure 2 This is a schematic diagram of the housing structure of the vehicle-mounted optoelectronic connector in this embodiment of the present invention; Figure 3 This is a schematic diagram of the inner core component structure of the vehicle-mounted optoelectronic connector in this embodiment of the present invention; Figure 4 , Figure 5 This is a schematic diagram of the inner core before and after injection molding in an embodiment of this utility model; Figure 6 This is a schematic diagram of the connection between the novel dust cap and the inner core end cap in an embodiment of this utility model; Figure 7 , Figure 8 This is a schematic diagram of the inner core component structure with a novel dust cap in an embodiment of this utility model; Figure 9 This is a partial structural schematic diagram of a photoelectric prefabricated cable equipped with a novel dust cap in an embodiment of this utility model; Figure 10 This is a schematic diagram of the structural form of the photoelectric prefabricated cable in the embodiment of this utility model; Figure 11 This is a structural disassembly diagram of the prefabricated optical cable in the embodiment of this utility model; Figure 12 This is a disassembly diagram of the inner core assembly of the optoelectronic prefabricated cable and the optoelectronic composite cable in the embodiment of this utility model; Figure 13 This is a side view of the photoelectric prefabricated cable in an embodiment of this utility model; Figure 14 This is a schematic diagram of the end face structure of the optoelectronic composite cable that can be used in the optoelectronic prefabricated cable of this utility model embodiment; In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1. Outer shell; 2. Inner core assembly; 3. Power terminal; 4. Limiting clip; 5. Shell cover; 6. Optical fiber composite cable; 101. Inner core through groove; 102. Terminal through groove; 1021. Embedded cavity; 103. Foolproof mechanism; 104. Limiting groove; 105. Insert protective sleeve; 106. Assembly through groove; 107. Insertion locking mechanism; 108. Pre-positioning slot; 201. Insert; 202. Spring; 203. Inner core; 2031. Inner core body; 2032. Inner core metal insert; 2033. Inner core hole; 2034. Opening; 2035. Arc-shaped slot; 2036. End cap connection; 2037. Pre-positioning buckle; 204. Inner core end cap; 205. Tail sleeve; 206. Dust cap; 601. Fiber optic unit; 602. Wire unit; 603. Aramid fiber; 604. Outer sheath. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model. Furthermore, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0022] In the description of this utility model, it should be understood that, unless otherwise explicitly specified and limited, the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this utility model.

[0023] Furthermore, unless otherwise expressly defined, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise expressly and specifically defined.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0026] Below, for reference Figures 1-13 This invention describes a vehicle-mounted optoelectronic connector and a corresponding optoelectronic prefabricated cable according to a preferred embodiment of the present invention.

[0027] Firstly, as one aspect of this utility model, an automotive optoelectronic connector is provided.

[0028] like Figure 1 As shown, the vehicle-mounted optoelectronic connector in the preferred embodiment includes a housing 1, an inner core assembly 2, and a power connection terminal 3. The housing 1 has a cylindrical structure, with one end serving as a connector for the optoelectronic composite cable 6 and the other end as a plug-in connector for insertion into a female connector. The plug-in connector has an inner core through-slot 101 for embedding the inner core assembly 2 and a terminal through-slot 102 for embedding the power connection terminal 3, arranged in layers within its inner cavity.

[0029] Meanwhile, the power terminal 3 is used to connect with the wire unit 602 in the optoelectronic composite cable 6, and is fixed after being embedded in the terminal through slot 102.

[0030] Accordingly, the inner core assembly 2 includes a ferrule 201, a spring 202, an inner core 203, and an inner core end cap 204; wherein, the ferrule 201 is used to connect with the optical fiber unit 601 in the optoelectronic composite cable 6. One end of the spring 202 can be sleeved and abutted against the tail end of the ferrule 201, and the other end can be inserted into one end of the inner core 203 and axially limited. The inner core end cap 204 is detachably connected to one end of the inner core 203, so that after the ferrule 201 and the spring 202 are assembled together, the inner core 203 can be limited by the inner core end cap 204 to one end of the inner core 203, and the inner core 203 connected with the inner core end cap 204 can be aligned and inserted into the inner core through slot 101 and fixed.

[0031] For the detachable connection between the inner core end cap 204 and the inner core 203, an end cap connecting part 2036 is provided at one end of the inner core 203, and the connection method between the inner core end cap 204 and the end cap connecting part 2036 is preferably a threaded connection, a snap-fit ​​connection or a limiting member connection.

[0032] by Figure 3 Taking the threaded connection shown as an example, an external thread is provided on the outer periphery of the end cap connecting part 2036, and an internal thread is provided on one end of the inner core end cap 204. The inner core end cap 204 is threaded onto the outer periphery of the end cap connecting part 2036 to achieve a detachable connection between the two.

[0033] Or, with Figure 8 Taking the buckle connection shown as an example, a snap-fit ​​protrusion is provided on the outer periphery of the end cap connecting part 2036, and an axial notch and a snap-fit ​​groove are provided at one end of the inner core end cap 204. After the inner core end cap 204 is sleeved on the outer periphery of the end cap connecting part 2036, the snap-fit ​​protrusion is embedded in the snap-fit ​​groove, thereby realizing the detachable connection between the two.

[0034] As for the connection of the limiting member, it can be understood as follows: the inner core end cap 204 is sleeved on the outer periphery of the end cap connecting part 2036, and a connecting groove is opened on the outer periphery of the end cap connecting part 2036, and a limiting hole is opened on the outer periphery of the inner core end cap 204, so that after the inner core end cap 204 is sleeved on the outer periphery of the end cap connecting part 2036, the connection between the inner core end cap 204 and the end cap connecting part 2036 can be completed by using a limiting member to pass through the limiting hole and be embedded in the connecting groove.

[0035] Furthermore, to secure the inner core component 2 after it is embedded in the outer shell 1, an arc-shaped slot 2035 is preferably provided on the outer periphery of the inner core 203, and a corresponding limiting clip 4 is provided. Correspondingly, a limiting groove 104 communicating with the inner core through groove 101 is provided on the outer peripheral wall of the outer shell 1. This limiting groove 104 can be positioned so that the inner core component 2 is aligned with the arc-shaped slot 2035 after it is embedded in the inner core through groove 101. Figure 1As shown in the figure. Then the aforementioned limiting card 4 can be inserted from the limiting groove 104 into the arc-shaped card groove 2035, so that one end of the limiting card 4 is embedded in the arc-shaped card groove 2035 and the other end is embedded in the limiting groove 104, thereby realizing the axial positioning of the inner core body 2031 in the outer shell 1.

[0036] As an example of implementation, the limit card 4 is arranged in an arc shape, such as Figure 11 As shown, its radial thickness along the outer shell 1 is not less than the groove depth of the arc-shaped slot 2035. Thus, when the limiting card 4 is inserted from the limiting groove 104 into the arc-shaped slot 2035, the inner side of the limiting card 4 is inserted into the arc-shaped slot 2035, and the outer side is inserted into the limiting groove 104. In this way, the axial and circumferential limiting of the inner core component 2 are realized, ensuring the reliability of the inner core component 2 in the outer shell 1.

[0037] More specifically, to facilitate the assembly of the inner core 203 within the outer casing 1, a pre-positioning component is preferably provided between the inner core assembly 2 and the outer casing 1. This component includes a pre-positioning slot 108 disposed within the inner cavity of the outer casing 1 and a pre-positioning buckle 2037 disposed on the outer periphery of the inner core 203, such as... Figures 1-3 As shown, before the inner core component 2 is fixed by the limiting card 4, the inner core component 2 can be pre-fixed in the outer shell 1 by assembling the pre-positioning buckle 2037 with the pre-positioning slot 108.

[0038] Furthermore, to facilitate the assembly of the inner core component 2 and the power connection terminal 3 in the outer casing 1, it is preferable to provide an assembly through groove 106 that connects to the inner cavity of the casing at the wiring end of the outer casing 1. One end of the assembly through groove 106 is axially connected to the end of the outer casing 1 used to connect the optoelectronic composite cable 6, and the other end extends to the terminal through groove 102 and is aligned with the tail end of the terminal through groove 102. This allows the power connection terminal 3 to be conveniently installed in the terminal through groove 102 after it is connected to the wire unit 602, thereby simplifying the assembly process of the power connection terminal 3 on the outer casing 1.

[0039] Correspondingly, a cover 5 is provided corresponding to the opening of the assembly slot 106. In the preferred embodiment, the cover 5 has an arc-shaped plate structure, which can be fixed after being embedded in the aforementioned assembly slot 106, thereby closing the notch on the outer shell 1 and restoring the cylindrical shape of the tail end of the outer shell 1, such as... Figure 10 As shown in the image.

[0040] As a feasible example, in a preferred embodiment, sliding grooves are respectively formed along the axial direction of the outer casing 1 on the opposing inner wall surfaces of the assembly through groove 106, and sliding protrusions are respectively provided on both sides of the casing cover 5, so that the casing cover 5 can be inserted into the two sliding grooves from the terminal face of the outer casing 1 through the two sliding protrusions, and the assembly through groove 106 is closed by axial sliding. More specifically, an elastic buckle is provided in the middle of the two sliding protrusions, and a notch is formed on the outer wall surface of the outer casing 1 for each elastic buckle. In this way, when the casing cover 5 slides into place in the two sliding grooves, the elastic buckle can be aligned with the corresponding notch and inserted, thereby realizing the axial positioning of the casing cover 5 on the assembly through groove 106. Figure 10 , Figure 11 As shown in the image.

[0041] like Figure 5 , Figure 8 As shown, in the preferred embodiment, the inner core 203 has a cylindrical structure, which includes an inner core body 2031 and an inner core metal insert 2032. In the preferred embodiment, the inner core body 2031 and the inner core metal insert 2032 are coaxially arranged and integrally formed by injection molding.

[0042] Of course, depending on the actual setup requirements, the inner core body 2031 and the inner core metal insert 2032 in the preferred embodiment can also be configured as a detachable connection, such as a threaded connection, which will not be elaborated here.

[0043] More specifically, in the preferred embodiment, the arrangement of the inner core body 2031 and the inner core metal insert 2032 is as follows: Figure 4 , Figure 5 As shown in the figure. One end of the inner core body 2031 has an axially formed inner core hole 2033 for embedding the ferrule 201 and matching the optical fiber unit 601 with the ferrule 201. Simultaneously, the outer periphery of the inner core body 2031 has an opening 2034 communicating with the inner core hole 2033, allowing the wire unit 602 in the optoelectronic composite cable 6 to pass through the inner core body 2031. Furthermore, in the preferred embodiment, the inner core metal insert 2032 is as follows... Figure 4 As shown, one end of the cable is used to fix it to the inner core body 2031, and the other end has a circular metal collar. The metal collar is used for threading the optoelectronic composite cable 6, and the metal collar can be fixed to the outer periphery of the end of the optoelectronic composite cable 6 by pressing or gluing.

[0044] Subsequently, the optical fiber unit 601 and the wire unit 602 of the optoelectronic composite cable 6 can pass through the inner core metal insert 2032 along the axial direction, so that the optical fiber unit 601 is assembled and connected with the ferrule 201, and the wire unit 602 passes out from the opening 2034, and the optoelectronic composite cable 6 and the metal collar can be correspondingly crimped and fixed, so as to realize the connection and fixation between the inner core component 2 and the optoelectronic composite cable 6.

[0045] More specifically, in the preferred embodiment, one end of the spring 202 is embedded in the inner core hole 2033 from the end of the inner core body 2031 and is axially limited, while the other end is sleeved on the annular step formed on the outer periphery of the insert 201.

[0046] More specifically, in the preferred embodiment, the power terminals 3 are arranged in pairs to correspond to the connection of the live wire and the neutral wire in the power supply line, respectively. When the vehicle-mounted optoelectronic connector is used for connection, the two power terminals 3 are connected to the corresponding wires, so that when the optoelectronic connector is inserted into the connector female head, the two conductive pins in the connector female head can be inserted into the two power terminals 3 respectively and complete the power connection.

[0047] In actual installation, the two electrical terminals 3 are arranged in parallel; correspondingly, the terminal through slot 102 in the housing 1 includes two parallel embedded cavities 1021 to realize the independent embedded installation of the two electrical terminals 3.

[0048] Preferably, the axes of the inner core through groove 101 and the terminal through groove 102 are parallel to the axis of the outer shell 1, that is, the axes of the two through grooves do not coincide with the axis of the outer shell 1. More preferably, the inner core through groove 101 and the terminal through groove 102 in the outer shell 1 are arranged in layers and staggered, so that the distance between the central axis of the inner core through groove 101 and the central axis of the two embedded cavities 1021 is unequal.

[0049] By utilizing the layered staggered arrangement between the terminal through-slot 102 and the inner core through-slot 101, and the non-coaxial design of the two through-slots and the outer casing 1, the internal cavity space in the outer casing 1 can be fully utilized, achieving a miniaturized design of the outer casing 1, and providing conditions for the installation of the insertion locking mechanism 107 on one side of the outer casing 1. Figure 13 The plug-in locking mechanism 107 shown in the figure enables the connector to be fully locked after being connected to the female head, thereby ensuring the stability of the optoelectronic connector plug-in use.

[0050] Furthermore, a ferrule protective sleeve 105 protrudes from the end of the outer shell 1 used for insertion. This sleeve is coaxially aligned with the inner core through slot 101, ensuring that after the inner core assembly 2 is installed in the inner core through slot 101, the end of the ferrule 201 of the inner core assembly 2 extends into the ferrule protective sleeve 105 but does not protrude from its end face. This design effectively protects the conductive end face of the ferrule 201, preventing damage to the optoelectronic connector during use due to contact between the conductive end face of the ferrule 201 and external components, thus fully guaranteeing the reliability of the inner core assembly 2 in its installation and use.

[0051] By using the ferrule protective sleeve 105, the insertion end face of the inner core assembly 2 and the insertion end face of the power terminal 3 are spaced apart axially in the connector.

[0052] It is understood that, in addition to the above-mentioned configuration, the insertion end face of the inner core component 2 can also be flush with the insertion end face of the power terminal 3 according to the actual insertion design requirements; in this case, the end of the outer shell 1 does not have a protruding insert protective sleeve 105, but can be adapted by changing the length of the main body of the outer shell 1.

[0053] More preferably, a plurality of anti-foolproof mechanisms 103 are provided circumferentially around the outer periphery of the end of the housing 1 used for insertion, so as to ensure the circumferential positioning accuracy when the optoelectronic connector is inserted into the connector female head.

[0054] It is understandable that the number, form, and circumferential position of the anti-mistake mechanism 103 can be changed according to actual needs. For example, the end of the plug can be directly set as a non-rotating structure, or anti-mistake units can be set on the outer periphery of the end of the plug, or several anti-mistake units can be set on the end face of the plug or on the outer periphery of the ferrule protective sleeve 105.

[0055] Furthermore, for the vehicle-mounted optoelectronic connector in the preferred embodiment, its inner core assembly 2 also includes a dust cap 206, one end of which can cover the end of the ferrule 201 to protect the ferrule 201, such as... Figure 1 As shown in the image.

[0056] exist Figure 1 In the preferred embodiment shown, the dust cap 206 is fitted onto the outer periphery of the insert 201 using a conventional technique, i.e., by means of an interference fit.

[0057] The above method can meet the end protection requirements of the ferrule 201 to a certain extent. However, the dust cap 206 in the above method is at risk of accidentally falling off.

[0058] Therefore, in such Figures 6-9 In the preferred embodiment shown, a novel dust cap 206 is provided. The dust cap 206 can be detachably connected to the inner core end cap 204 after being fitted onto the outer periphery of the insert 201. This ensures the reliable installation of the dust cap 206.

[0059] In a preferred embodiment, the aforementioned detachable connection is preferably... Figure 6 , Figure 7 The image shows a snap-fit ​​connection. Of course, depending on the actual setup requirements, the above connection method can also be in other forms, such as a threaded connection.

[0060] By utilizing the detachable connection between the dust cap 206 and the inner core end cap 204, compared to Figure 1The conventional dust cap 206 sleeve scheme can effectively prevent the dust cap 206 from falling off accidentally and reduce accidental damage to the ferrule 201 after the inner core component 2 is assembled. This is especially true for cases where the ferrule protective sleeve 105 is not installed, thereby ensuring the performance reliability of the optoelectronic connector or the optoelectronic prefabricated cable assembled later before use (e.g., during transportation and storage).

[0061] like Figure 1 , Figure 6 As shown in the preferred embodiment, the inner core end cap 204 has a variable diameter through hole along the axial direction, so that after the inner core end cap 204 is connected to the end cap connecting part 2036, the inner core end cap 204 can limit the insertion core 201 on the inner core 203 (axial and circumferential).

[0062] By utilizing the combined connection between the inner core end cap 204 and the inner core 203, the insertion core 201 can be pre-positioned and fixed during the assembly process, thereby improving the convenience of embedding and fixing the inner core assembly 2 in the inner core through groove 101, and facilitating the fixing between the outer shell 1 and the inner core assembly 2 (e.g., the quick alignment and alignment retention of the limiting groove 104 and the arc-shaped slot 2035).

[0063] More specifically, a tail sleeve 205 is also provided corresponding to the inner core 203. One end of the tail sleeve 205 can be coaxially connected to the outer periphery of the end of the inner core 203. More specifically, one end of the tail sleeve 205 can be coaxially connected to one end of the inner core 203 (e.g., the outer periphery of the metal collar of the inner core metal insert 2032).

[0064] In actual setup, for the connection of the tail sleeve 205, it is preferable to provide a limiting protrusion along the outer periphery of the inner core metal insert 2032 and to open a limiting groove on the inner periphery of the end of the tail sleeve 205. By using the limiting protrusion to be embedded in the limiting groove, the connection and axial limiting of the tail sleeve 205 at the end of the inner core 203 can be achieved.

[0065] As another aspect of this utility model, based on the special design of the inner core component 2 in the aforementioned vehicle-mounted optoelectronic connector, a structure can be formed during the assembly process of the optoelectronic connector and the optoelectronic composite cable 6, as shown in the figure. Figure 9 The photoelectric prefabricated cable shown.

[0066] The prefabricated optoelectronic cable is composed of an inner core assembly 2 and an optoelectronic composite cable 6 connected together. In the preferred embodiment, the optoelectronic composite cable 6 is as follows: Figure 14As shown, it has an optical fiber unit 601 and a pair of wire units 602 inside. At this time, the optical fiber composite cable 6 is introduced from the tail end of the inner core 203. Its optical fiber unit 601 extends along the inner hole of the inner core 203 and is connected to the ferrule 201 assembled at the head end of the inner core 203. The wire units 602 introduced into the inner core 203 are led out from the opening 2034 in the middle of the inner core 203 for subsequent connection with the power terminal 3. Correspondingly, after the tail end is assembled with the spring 202, the ferrule 201 is connected to the fiber optic unit 601 and embedded into the head end of the inner core 203. The inner core end cap 204 is detachably connected to the head end of the inner core 203, thereby achieving axial positioning of the ferrule 201 at the end of the inner core 203, thus obtaining the following... Figure 9 The photoelectric prefabricated cable shown.

[0067] After the aforementioned prefabricated optical cable is assembled, it can be further transported to the station for connecting the power terminal 3 and the connector housing 1. The reliability of the prefabricated optical cable during the transportation process is fully guaranteed by the inner core end cap 204.

[0068] More preferably, for the insert 201 axially limited by the inner core end cap 204, a dust cap 206 is further preferably provided, which covers the outer periphery of the insert 201 to protect the end face of the insert. Of course, depending on the requirements, the aforementioned dust cap 206 can be further preferably detachably connected to the inner core end cap 204, thereby further preventing the dust cap 206 from falling off during transportation and fully ensuring the reliability of the optical fiber prefabricated cable during transportation.

[0069] As another aspect of this utility model, based on the aforementioned configuration of the vehicle-mounted optoelectronic connector, the following can be further obtained: Figure 10 , Figure 11 The photoelectric prefabricated cable shown.

[0070] For the prefabricated optoelectronic cable, it includes an on-board optoelectronic connector and an optoelectronic composite cable 6 connected thereto. In the preferred embodiment, the optoelectronic composite cable 6 is as follows: Figure 14 As shown, it contains an optical fiber unit 601 and a pair of wire units 602. In actual installation, the outer periphery of the optical fiber unit 601 and the wire unit 602 is successively covered with aramid fiber 603 and an outer sheath 604.

[0071] Of course, it is understandable that, in actual installation, the optoelectronic composite cable 6 assembled with the aforementioned vehicle-mounted optoelectronic connector can also be distinguished from... Figure 10 Other cable structures in the form of the medium can be selected as long as they include a fiber optic unit 601 and a pair of wire units 602. This can be optimized according to actual needs, and will not be elaborated here.

[0072] In the actual installation of the optoelectronic prefabricated cable, in the preferred embodiment, the optoelectronic composite cable 6 is inserted into the vehicle-mounted optoelectronic connector from the tail end of the tail sleeve 205. The optical fiber unit 601 and the wire unit 602 of the optoelectronic composite cable 6 pass through the inner core metal insert 2032 and enter the inner cavity of the inner core 203.

[0073] More specifically, the fiber optic unit 601 is connected to the tail end of the ferrule 201. Two wire units 602 extend from the opening 2034 on the inner core body 2031 and bend to reach the terminal slot 102. After being connected to the power terminal 3, the two wire units 602 are embedded in the terminal slot 102. In this way, the conductive connection between the fiber optic unit 601 and the inner core assembly 2, and the conductive connection between the wire units 602 and the power terminal 3, are achieved, forming a connection as shown in the diagram. Figure 10 The optical fiber prefabricated cable in the middle.

[0074] It should be noted that the connection between the optical fiber unit 601 and the end of the ferrule 201 in the inner core assembly 2, and the connection between the wire unit 602 and the power terminal 3, all adopt mature processes in the existing technology, which will not be elaborated here.

[0075] For the optoelectronic prefabricated cable in the preferred embodiment, its assembly and connection process is preferably as follows: One end of the optical fiber composite cable 6 is passed through the tail sleeve 205, so that the tail sleeve 205 is fitted on the outer periphery of the optical fiber composite cable 6; the optical fiber composite cable 6 is stripped to obtain the separated optical fiber unit 601 and wire unit 602. The fiber optic unit 601 and the wire unit 602 are passed through the inner core metal insert 2032, wherein the fiber optic unit 601 passes through the inner core hole 2033 and the wire unit 602 is passed out from the opening 2034. The fiber unit 601 passing through the inner core hole 2033 is processed, and the fiber unit 601 passing through the spring 202 is assembled and connected to the tail end of the ferrule 201. After processes such as dispensing, curing, and grinding, the connection between the fiber unit 601 and the ferrule 201 is achieved. Then, the ferrule 201 is embedded in the inner core hole 2033, and the inner core end cap 204 is connected and fixed to the end cap connection part 2036 of the inner core body 2031. The inner core end cap 204 limits the ferrule 201 in the inner core body 2031. The conducting end of the ferrule 201 extends out of the inner core end cap 204, and the spring 202 is in a compressed state, pressing the ferrule 201 against the inner wall surface of the inner core end cap 204. By using a crimping process, the inner core metal insert 2032 is crimped onto the outer periphery of the optoelectronic composite cable 6, thereby fixing the optoelectronic composite cable 6 to the inner core component 2.

[0076] It is understood that, based on the aforementioned work process, the aforementioned prefabricated optical cable structure composed of the inner core component 2 and the optical composite cable 6 can be obtained, so as to facilitate transportation for subsequent work processes.

[0077] Further, the inner core assembly 2 is assembled, and the wire unit 602 is connected to the power terminal 3; thereafter, the end of the inner core 203 connected to the inner core end cap 204 is embedded in the inner core through groove 101, and the power terminal 3 is embedded in the terminal through groove 102.

[0078] After the inner core component 2 is inserted into place, the pre-positioning buckle 2037 on the outer periphery of the inner core 203 matches the pre-positioning slot 108 in the inner cavity of the outer shell 1, thereby achieving the pre-positioning of the inner core component 2 in the inner cavity of the outer shell 1 and initially achieving axial positioning. At this time, the arc-shaped slot 2035 on the outer periphery of the inner core 203 is aligned with the limiting slot 104 on the outer periphery of the outer shell 1; then, the limiting card 4 is inserted into the limiting slot 104 and the limiting card 4 is inserted into the arc-shaped slot 2035, thereby achieving axial positioning of the inner core component 2 in the inner core through slot 101; at this time, the end of the insert 201 extending out of the inner core end cover 204 extends into the insert protective sleeve 105, and the dust cap 206 is embedded in the inner core end cover 204 to cover the insertion end of the insert 201.

[0079] The cover 5 is embedded in the assembly slot 106 on the outer shell 1, and the tail sleeve 205 is fitted onto the tail end of the inner core metal insert 2032 to complete the assembly of the optoelectronic prefabricated cable.

[0080] For the optoelectronic prefabricated cable in the preferred embodiment, its design based on vehicle-mounted optoelectronic connectors can complete the connector setup through optoelectronic composite cables. It can not only use optical fiber transmission to replace conventional copper cable transmission, but also effectively achieve reliable power line setup, thereby meeting the application scenarios that require simultaneous power connection and signal transmission, especially meeting the application requirements of vehicle-mounted connectors, and fully ensuring the reliability of signal and power transmission.

[0081] Furthermore, by utilizing the special design of each component in the automotive optoelectronic connector, the requirements for miniaturization of the optoelectronic connector are fully met, as well as the stability and reliability of each component after the optoelectronic connector is installed. It can also reliably protect the conductive end face of the ferrule, thereby improving the service life and conductivity quality of the optoelectronic connector, and has good practical value.

[0082] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A vehicle-mounted optoelectronic connector, characterized in that, It includes a housing having cavities connecting both ends of the axial direction, and an inner core assembly and electrical terminals that can be detached and installed within the housing; One end of the outer shell is a wiring terminal for connecting to the optical fiber composite cable, and the other end is a plug-in terminal for plugging into the female connector. The plug-in terminal is provided with an inner core through groove and a terminal through groove. The power terminal is used to connect to the wire unit in the optoelectronic composite cable and can be embedded in the terminal through slot; The inner core assembly includes a ferrule, a spring, an inner core, and an inner core end cap; wherein, the ferrule is used to connect with the optical fiber unit in the optoelectronic composite cable; one end of the spring can be sleeved and abut against the tail end of the ferrule, and the other end of the spring can be inserted into one end of the inner core and axially limited; the inner core end cap is detachably connected to one end of the inner core, so that after the ferrule and the spring are assembled together, the inner core end cap can limit the inner core to one end, and the inner core with the inner core end cap connected can be aligned and embedded into the inner core through slot and fixed.

2. The vehicle-mounted optoelectronic connector according to claim 1, characterized in that, The inner core assembly also includes a dust cap, one end of which can be fitted onto the outer periphery of the end of the insert and detachably connected to the end of the inner core end cap.

3. The vehicle-mounted optoelectronic connector according to claim 2, characterized in that, The detachable connection between the inner core end cap and the inner core can be a snap-fit ​​connection, a threaded connection, or a limiting component connection. and / or The detachable connection between the inner core end cap and the dust cap is a snap-fit ​​connection or a threaded connection.

4. The vehicle-mounted optoelectronic connector according to any one of claims 1 to 3, characterized in that, The outer periphery of the terminal block is provided with an assembly through groove that communicates with the inner cavity, and a cover is provided therecorrespondingly. The cover can be installed and removed in the assembly channel, and the assembly channel can be sealed by installing the cover in the assembly channel.

5. The vehicle-mounted optoelectronic connector according to claim 4, characterized in that, The end of the inner core facing away from the ferrule is used to simultaneously connect to the optical fiber unit and the wire unit, and an opening is provided in the middle of the inner core. The opening is positioned so that, after the inner core assembly is embedded in the inner core through slot, it faces the terminal through slot, allowing a wire unit introduced from one end of the inner core to extend from the opening and connect to the power terminal.

6. The vehicle-mounted optoelectronic connector according to any one of claims 1 to 3 and 5, characterized in that, The electrical terminals are arranged in pairs, and the terminal slot includes two embedded cavities arranged side by side. The axes of the inner core through groove and the terminal through groove are parallel to the axis of the outer shell, respectively; and the terminal through groove and the inner core through groove are arranged in layers and staggered, so that the distance between the central axis of the inner core through groove and the central axis of the two embedded cavities is not equal.

7. The vehicle-mounted optoelectronic connector according to claim 6, characterized in that, The end of the plug-in terminal is configured as a non-rotating body structure; and / or, a plurality of anti-foolproof units are provided circumferentially on the outer periphery or end face of the end of the plug-in terminal. and / or A locking mechanism is provided on the outer periphery of the plug-in end for locking the alignment after the plug-in end is plugged into the female head.

8. The vehicle-mounted optoelectronic connector according to any one of claims 1 to 3, 5, and 7, characterized in that, The inner core has an arc-shaped slot circumferentially formed around its outer periphery, and the outer shell has a limiting slot circumferentially formed around its outer periphery. The arc-shaped slot can be aligned with the limiting slot after the inner core assembly is embedded in the inner core through slot. The vehicle-mounted optoelectronic connector also includes a limiting card. One side of the limiting card can be inserted into the arc-shaped slot after passing through the limiting slot, and the other side of the limiting card is located in the limiting slot, thereby achieving axial locking of the inner core. and / or The inner core includes an inner core body and an inner core metal insert; the inner core metal insert is detachably connected or fixedly connected to the end of the inner core body away from the insert, and is used for threading the optoelectronic composite cable and fixing the end of the optoelectronic composite cable. and / or It also includes a tail sleeve, one end of which can be sleeved onto one end of the inner core for connection to the optoelectronic composite cable.

9. A prefabricated optical fiber cable, characterized in that, Including the core assembly and the optical-electric composite cable connected to it; The inner core assembly includes a insert, a spring, an inner core, and an inner core end cap; the inner core has an inner hole, and an opening communicating with the inner hole is formed on the outer periphery of its middle portion; the tail end of the insert, after being assembled with the spring, is embedded into the inner hole at one end of the inner core; the inner core end cap is detachably connected to the end of the inner core where the insert is assembled, and axially limits the insert to the end of the inner core; and The optoelectronic composite cable includes an optical fiber unit and a wire unit; the optoelectronic composite cable is introduced into the inner core from the end of the inner core away from the ferrule, so that the optical fiber unit extends along the inner hole and is connected to the ferrule, and the wire unit is led out from the opening.

10. A prefabricated optical fiber cable, characterized in that, The optoelectronic prefabricated cable includes a vehicle-mounted optoelectronic connector as described in any one of claims 1 to 8 and an optoelectronic composite cable with one end assembled and connected to the vehicle-mounted optoelectronic connector; The optoelectronic composite cable includes an optical fiber unit and a wire unit; wherein the wire unit is connected to the power receiving terminal, and the power receiving terminal is embedded in the terminal through slot; The optical fiber unit passes through the inner core and is connected to the ferrule; the tail end of the ferrule abuts against the spring sleeve and is embedded into one end of the inner core; the inner core end cap is connected to one end of the inner core to achieve axial positioning of the ferrule; and the inner core and the inner core end cap are assembled together and embedded and fixed in the inner core through groove.

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