Optical and electrical connector for vehicle and optical and electrical preformed cable supporting ferrule protection

Abstract

The utility model discloses a kind of optical-electric connector and optical-electric preformed cable for supporting plug-in core protection, belong to connector technical field, including shell, inner core subassembly and electrical terminal, by setting up inner core through slot and terminal through slot in the inner cavity of shell for plug-in connector female end, cooperate the setting of inner core assembly insertion core assembly hole, opening, so that photoelectric composite cable introduced from inner core tail end can respectively connect fiber unit in the tail end of insertion core and guide wire unit to terminal through slot and connect with electrical terminal in terminal through slot, provide conditions for the setting of optical-electric preformed cable.The utility model in the present application, it can satisfy the conduction of photoelectric simultaneously, so that assembled optical-electric connector has the ability of plug-in core protection, fully guarantee the reliability of insertion core assembly, meet the plug-in core detection, cleaning demand in optical-electric connector, effectively improve the comprehensive performance of optical-electric connector and optical-electric preformed cable.

Description

Technical Field

[0001] This utility model belongs to the field of connector technology, specifically relating to an automotive optoelectronic connector and optoelectronic prefabricated cable that supports ferrule protection. 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.

[0004] Furthermore, for connectors using fiber optic communication, the key communication components mostly employ ceramic ferrules. Communication is achieved by the conductive end face of the ceramic ferrule contacting the corresponding conductive component in the female connector. In actual installation, the quality of the ferrule end face directly affects the connector's optical transmission performance, thus requiring protection. However, to facilitate end face inspection and cleaning, the ferrule end often needs to extend beyond the connector's end. In this case, the common practice is to cover the ferrule end with a dust cap, which provides some protection. However, when the connector is plugged into the female connector after removing the dust cap, misalignment can easily cause the ferrule to rub against other structural features, resulting in scratches or dirt on the ferrule end face, thus affecting its conductivity. Therefore, traditional ferrule protection methods also have certain shortcomings and limitations, and there is room for improvement and a need for further development. Utility Model Content

[0005] In view of one or more of the above-mentioned defects or improvement needs of the prior art, this utility model provides a vehicle-mounted optoelectronic connector and optoelectronic prefabricated cable that supports ferrule protection, which can simultaneously meet the requirements of optical fiber transmission of signals and power transmission, and realize end protection of the ferrule used for optical fiber transmission, thereby improving the communication quality and performance of the optoelectronic prefabricated cable.

[0006] To achieve the above objectives, one aspect of this utility model provides a vehicle-mounted optoelectronic connector that supports ferrule protection, comprising a housing having cavities communicating at both axial ends, and an inner core assembly and electrical terminals that can be detachably installed 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 that can be connected to an optical fiber unit in an optoelectronic composite cable. After assembly, the inner core assembly can be inserted into the inner core through slot with the end of the ferrule fitted therein, such that the ferrule end face extends out of the end face of the plug-in end. A ferrule protective sleeve is provided on the end face of the plug-in end along the axial direction of the inner core through slot to protect the ferrule end face. After the ferrule is assembled in place in the outer shell, its ferrule end face extends into the ferrule protective sleeve, and the ferrule end face does not extend out of the ferrule protective sleeve.

[0007] As a further improvement of this utility model, the insert protective sleeve is integrally formed with the outer shell; or The ferrule protective sleeve is detachably connected to the insertion end of the outer shell, so that the end face of the ferrule can be exposed after the ferrule protective sleeve is removed; or The ferrule protective sleeve is connected to the outer shell through an elastic element, so that the ferrule protective sleeve can move axially relative to the outer shell after the elastic element is compressed, and the end face of the ferrule can protrude from the end of the ferrule protective sleeve after the elastic element is pressed and retracted.

[0008] As a further improvement of this utility model, the insert protective sleeve is detachably connected to the insertion end of the outer shell, and a sleeve connecting part is provided protruding at the end of the insertion end; The ferrule protective sleeve is detachably connected to the sleeve connecting part, and the length of the sleeve connecting part is less than the length of the ferrule extending out of the insertion end face when assembled.

[0009] As a further improvement of this utility model, the detachable connection is a threaded connection, a snap-fit ​​connection, or a limiting member connection.

[0010] As a further improvement of this utility model, an arc-shaped groove is formed on the outer periphery of the inner core assembly, and a limiting groove penetrating the inner cavity is formed on the outer periphery of the outer shell; and The vehicle-mounted optoelectronic connector also includes a limiting card; the arc-shaped card slot and the limiting slot can be aligned with each other when the inner core component is embedded in the housing, and the limiting card can be inserted from the limiting slot into the arc-shaped card slot, thus axially locking the inner core component in the housing.

[0011] As a further improvement of this utility model, the inner core assembly includes a core insert, a spring, and an inner core; One end of the inner core is a ferrule assembly hole, and the other end of the inner core is used to connect the optical fiber unit and the wire unit. An opening is provided on the outer periphery of the inner core for the wire unit to pass through. One end of the spring can be sleeved and abutted against the tail end of the ferrule, and the other end can be inserted into the ferrule assembly hole and axially limited. The end of the inner core with the ferrule assembly hole can be coaxially inserted into the inner core through slot and fixed after matching the ferrule and the spring.

[0012] As a further improvement of this utility model, the outer periphery of the terminal is provided with an assembly through groove that communicates with the inner cavity, and a shell cover that can be disassembled and installed in the assembly through groove is provided; and the inner core embedded in the inner core through groove has its opening facing the assembly through groove.

[0013] As a further improvement of this utility model, 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 one end of the inner core body away from the insertion hole, 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 used to connect the optical fiber unit and the wire unit; and / or The inner core assembly also includes a dust cap, one end of which can be embedded into the insert protective sleeve and fitted onto the end of the insert with the insert end face.

[0014] 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; and / or The terminal through slot and the inner core through slot are arranged in a staggered layer, and the distance between the central axis of the inner core through slot and the central axis of the two embedded cavities is not equal; and / or 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 on the outer periphery of the plug-in terminal in an upward ring. 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.

[0015] Another aspect of this utility model also provides a photoelectric prefabricated cable that supports ferrule protection, the photoelectric prefabricated cable including the vehicle-mounted photoelectric connector that supports ferrule protection and a photoelectric composite cable assembled and connected with the vehicle-mounted photoelectric connector; The optoelectronic composite cable includes an optical fiber unit and a pair of wire units, wherein the optical fiber unit and the wire units are respectively introduced into the inner core from the end of the inner core away from the ferrule assembly hole; The optical fiber unit extends axially into the ferrule assembly hole and is connected to the tail end of the ferrule, which is confined in the ferrule assembly hole; the inner core is fixed in the inner cavity of the outer shell, and the limiting protrusion in the middle of the ferrule is pressed against the inner wall surface of the inner core through groove by a spring embedded in the ferrule assembly hole, and the end of the ferrule to be connected passes through the sleeve connection part but does not protrude from the end of the ferrule protective sleeve that is detachably connected to the sleeve connection part; The two wire units extend from the opening and into the terminal slot, and are respectively connected to the two electrical terminals and embedded in the two embedded cavities of the terminal slot.

[0016] The aforementioned improved technical features can be combined with each other as long as they do not conflict with each other.

[0017] 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 a vehicle-mounted optoelectronic connector with ferrule protection, comprising a housing, an inner core assembly, and electrical terminals. By providing an inner core through-slot and a terminal through-slot in the inner cavity of the housing for inserting the connector female end, and a detachable ferrule protective sleeve at the end of the housing, along with the ferrule assembly holes and openings in the inner core assembly, an optoelectronic composite cable introduced from the tail end of the inner core can connect the optical fiber unit to the tail end of the ferrule and guide the wire unit to the terminal through-slot and connect it to the electrical terminals in the terminal through-slot. This design of the vehicle-mounted optoelectronic connector provides conditions for the installation of prefabricated optoelectronic cables, and the detachable connection of the ferrule protective sleeve achieves end protection of the ferrule and meets the requirements for ferrule end inspection and cleaning. This ensures that the connector possesses both high-speed signal transmission and power transmission capabilities while fully guaranteeing the reliability of the optoelectronic connector.

[0018] Furthermore, the optoelectronic connector and the optoelectronic prefabricated cable based on the optoelectronic connector of this utility model have a compact structure and simple assembly. Based on the access of the optoelectronic composite cable, it can realize the simultaneous data signal transmission and power transmission of the connector, effectively improve the data signal transmission rate and quality of the connector, enhance the overall performance of the optoelectronic connector, expand the application range of the connector, especially meet the application needs in the field of intelligent connected vehicles, and realize 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 structure of the vehicle-mounted optoelectronic connector that supports ferrule protection in this embodiment of the present invention; Figure 2 This is a structural disassembly diagram of the housing of the vehicle-mounted optoelectronic connector in this embodiment of the present invention; Figure 3 This is a structural disassembly diagram of the inner core assembly of the vehicle-mounted optoelectronic connector in this embodiment of the present invention; Figure 4 This is an isometric view of the vehicle-mounted optoelectronic connector in this embodiment of the present invention; Figure 5 This is an isometric view of the inner core structure of the inner core assembly of the vehicle-mounted optoelectronic connector in this embodiment of the present invention; Figure 6 This is a cross-sectional view of the housing of the vehicle-mounted optoelectronic connector in this embodiment of the present invention; Figure 7 This is a schematic diagram of another configuration of the insert protective sleeve in an embodiment of this utility model; Figure 8 This is a schematic diagram of the prefabricated optoelectronic cable after assembly in an embodiment of this utility model; Figure 9 This is a structural disassembly diagram of the prefabricated optical cable in an embodiment of this utility model; Figure 10 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; 103. Sleeve connection part; 104. Insert protective sleeve; 105. Limiting groove; 106. Assembly through groove; 107. Foolproof mechanism; 108. Insertion locking mechanism; 109. Positioning protrusion; 110. Pre-positioning slot; 201. Insert; 202. Spring; 203. Inner core; 2031. Inner core body; 2032. Inner core metal insert; 2033. Insert assembly hole; 2034. Opening; 2035. Arc-shaped slot; 2036. Positioning slot; 2037. Pre-positioning buckle; 204. Dust cap; 205. Tail sleeve; 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 1-9 The present invention describes a vehicle-mounted optoelectronic connector that supports ferrule protection according to a preferred embodiment of the present invention, and an optoelectronic prefabricated cable assembled based on the vehicle-mounted optoelectronic connector.

[0027] As one aspect of this utility model, an automotive optoelectronic connector that supports ferrule protection is provided.

[0028] like Figure 1 As shown, in the preferred embodiment, the vehicle-mounted optoelectronic connector supporting ferrule protection 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 wiring terminal for the optoelectronic composite cable 6 and the other end as a plug-in terminal for insertion into a female connector. The plug-in terminal 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 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 that can be connected to the optical fiber unit 601 in the optoelectronic composite cable 6. After assembly, the inner core assembly 2 can be inserted into the inner core through slot 101 with the ferrule 201 mounted thereon, so that the end face of the ferrule extends out of the end face of the plug-in end. Moreover, a ferrule protective sleeve 104 is provided on the end face of the plug-in end along the axial direction of the inner core through slot 101 to protect the end face of the ferrule, so that after the ferrule 201 is assembled in the outer shell 1, its end face can extend into the ferrule protective sleeve 104, and the end face of the ferrule does not extend out of the ferrule protective sleeve 104.

[0031] By utilizing the aforementioned configuration of the ferrule protective sleeve 104, the ferrule 201 of the optoelectronic connector will not be exposed after assembly. The ferrule protective sleeve 104 protects the end face of the ferrule 201, thereby realizing the ferrule protection function of the optoelectronic connector.

[0032] For the ferrule protective sleeve 104 in the preferred embodiment, its configuration can be selected from the following examples as needed.

[0033] As an example, the insert protective sleeve 104 is preferably integrally formed with the housing 1.

[0034] As another example, the ferrule protective sleeve 104 is detachably connected to the insertion end of the housing 1, so that the ferrule end face of the ferrule 201 can be exposed after the ferrule protective sleeve 104 is removed, and can be hidden in the ferrule protective sleeve 104 after the ferrule protective sleeve 104 is connected.

[0035] For the detachable connection between the ferrule protective sleeve 104 and the outer shell 1, it can be that the end of the ferrule protective sleeve 104 is directly detachably connected to the end face of the insertion end, or it can be provided on the insertion end as follows: Figure 2 The sleeve connecting part 103 shown is detachably connected to the ferrule protective sleeve 104. As for the detachable connection between the ferrule protective sleeve 104 and the sleeve connecting part 103, the connection form between the two can be any one of threaded connection, snap-fit ​​connection or limiting member connection.

[0036] As another example, the ferrule protective sleeve 104 is connected to the outer shell 1 by an elastic element, allowing the ferrule protective sleeve 104 to move axially relative to the outer shell 1 after the elastic element is compressed, and the ferrule end face can protrude from the end of the ferrule protective sleeve 104 after the elastic element is pressed and retracted. For example, in Figure 7In the preferred embodiment shown, an annular groove is formed around the inner core through groove 101 along the axial direction on the end face of the insertion end, and a telescopic spring is provided in the annular groove. One end of the telescopic spring is limited in the annular groove, and one end of the insert protective sleeve 104 is slidably embedded in the annular groove and connected to the other end of the telescopic spring. When the insert protective sleeve 104 is not subjected to external force, it is in a state of extending relative to the outer shell 1 under the action of the telescopic spring. At this time, the insert protective sleeve 104 protects the insert 201, realizing the insert protection function. When there is a need to inspect or clean the insert 201, the telescopic spring can be compressed by pressing the insert protective sleeve 104, causing the insert protective sleeve 104 to retract into the annular groove, thus exposing the end face of the insert. In actual installation, to ensure the reliability of the connection between the insert protective sleeve 104 and the annular groove, it is preferred that the two are connected in a certain way. Figure 7 The buckle is axially limited to prevent the insert protective sleeve 104 from detaching; correspondingly, the end of the telescopic spring away from the annular groove abuts against the annular stepped surface formed on the inner circumference of the insert protective sleeve 104.

[0037] By setting the ferrule protective sleeve 104 to be detachable or retractable, the ferrule end face can be exposed when inspection and cleaning are required, and protected by the ferrule protective sleeve 104 at other times, thus realizing the ferrule protection function of the optoelectronic connector.

[0038] Furthermore, the axes of the inner core through groove 101 and the terminal through groove 102 are parallel to the axis of the outer casing 1, respectively.

[0039] 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 prefabricated cable 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.

[0040] In actual installation, corresponding to the parallel embedding of the two electrical terminals 3 in the housing 1, it is preferable to form two parallel embedding cavities in the terminal through groove 102 of the housing 1 to realize the independent embedding and installation of the two electrical terminals 3.

[0041] Furthermore, considering that one side of the housing 1 often needs to be equipped with a mating locking mechanism 108 after mating with the connector female head, such as a spring-loaded latch, etc. Figure 4 As shown in the diagram. Therefore, in a preferred embodiment, the inner core through groove 101 and the terminal through groove 102 in the housing 1 are offset in the layering direction. For example, in... Figure 4In the preferred embodiment shown, the terminal through slot 102 includes two side-by-side embedded cavities, and the distance between the axis of the inner core through slot 101 and the centerline of the two embedded cavities is unequal. This arrangement is based on the design requirement of miniaturization of the housing 1. By translating the inner core through slot 101 a certain distance along a plane parallel to the axis of the two embedded cavities of the terminal through slot 102, a space is formed on the side of the inner core through slot 101 near the centerline of the terminal through slot 102 where a plug-in locking mechanism 108 can be installed. Subsequently, the plug-in locking mechanism 108 on the housing 1 is correspondingly installed on the side of the inner core through slot 101 near the terminal through slot 102. In this way, the projection of the centerline of the combination structure of the locking mechanism and the inner core through slot 101 onto the plane where the terminal through slot 102 is located can be made as coincident as possible with the centerline of the terminal through slot 102. Thus, while meeting the requirements of each structural arrangement, the miniaturization design requirement of the housing 1 is achieved.

[0042] More specifically, a dust cap 204 is also provided for the end protection of the ferrule 201. It can be embedded in the end of the ferrule protective sleeve 104 after the ferrule 201 is assembled in place, and cover the outer periphery of the end of the ferrule 201.

[0043] As a feasible configuration, in a preferred embodiment, the dust cap 204 has a variable outer diameter structure with a T-shaped longitudinal cross-section. The outer diameter of the end of the dust cap 204 used to embed into the insert protective sleeve 104 is smaller than the inner diameter of the sleeve connection portion 103. This allows one end of the dust cap 204 to... Figure 1 The embedded sleeve connection portion 103 shown is sleeved on the end of the ferrule 201, providing reliable protection for the end of the ferrule 201 used for insertion.

[0044] By utilizing the ferrule protective sleeve 104, the outer shell 1 is able to protect the ferrule 201 after it has been assembled. Furthermore, during subsequent insertion, the outer shell 1 can prevent the ferrule 201 from rubbing against other structural features due to alignment issues, effectively avoiding damage to the ferrule 201 of the photoelectric connection structure before and after use. Simultaneously, the detachable connection of the ferrule protective sleeve 104 to the sleeve connection part 103 allows for end-face inspection and cleaning of the ferrule 201 by removing the ferrule protective sleeve 104, ensuring the performance of the conductive end face of the ferrule 201.

[0045] More preferably, a plurality of anti-mistake mechanisms 107 are provided circumferentially around the outer periphery of the end of the housing 1 used for insertion to ensure the circumferential positioning accuracy when the optoelectronic prefabricated cable is inserted into the connector female head. It is understood that the number, form, and circumferential position of the anti-mistake mechanisms 107 can be changed according to the actual needs of the installation, which will not be elaborated here.

[0046] For example, in such Figure 2In the preferred embodiment shown, anti-foolproof mechanisms 107 are preferably provided on both sides of the inner core through groove 101.

[0047] Furthermore, to facilitate the connection and assembly of the fiber optic unit 601 and the wire unit 602 of the optical fiber composite cable 6 after it is connected to the outer shell 1, an assembly through slot 106 is provided on the outer periphery of the outer shell 1, connecting to the inner cavity of the shell. One end of the assembly through slot 106 is axially connected to the end of the outer shell 1 used to connect the optical fiber composite cable 6, and the other end extends to the terminal through slot 102 and is aligned with the tail end of the terminal through slot 102. This allows the power connection terminal 3 to be quickly installed in the terminal through slot 102 after it is connected to the wire unit 602, improving the ease of assembly and installation of the power connection terminal 3.

[0048] 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 8 As shown in the image.

[0049] As a feasible example, in a preferred embodiment, sliding grooves are respectively formed along the axial direction of the outer shell 1 on the opposing inner wall surfaces of the assembly through groove 106, and sliding protrusions are respectively provided on both sides of the shell cover 5, so that the shell cover 5 can be inserted into the two sliding grooves from one end of the outer shell 1 (the end opposite to the sleeve connection part 103) by 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 shell 1 for each elastic buckle. In this way, when the shell 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 shell cover 5 on the assembly through groove 106, such as Figure 8 , Figure 9 As shown in the image.

[0050] Furthermore, for the vehicle-mounted optoelectronic connector in the preferred embodiment, its inner core component 2 is as follows: Figure 3 As shown, it includes a coaxially arranged insert 201, spring 202, inner core 203, dust cap 204, and tail sleeve 205.

[0051] In the preferred embodiment, one end of the insert 201 has a conductive end face, and a limiting protrusion is formed in its middle. By utilizing the contact between the limiting protrusion and the inner wall surface of the inner core groove 101, the axial positioning of the insert 201 within the inner core groove 101 can be achieved. Figure 1 As shown in the image.

[0052] Meanwhile, 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 arranged coaxially. In the preferred embodiment, the inner core body 2031 and the inner core metal insert 2032 are arranged coaxially and are integrally formed by injection molding.

[0053] Specifically, in the preferred embodiment, the inner core body 2031 and the inner core metal insert 2032 are arranged as follows: Figure 1 , Figure 3 As shown in the diagram, one end of the inner core body 2031 has an axially oriented ferrule assembly hole 2033 for inserting 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 ferrule assembly 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, one end of the inner core metal insert 2032 has a circular metal collar, which is used for inserting the optoelectronic composite cable 6 and can be fixed to the outer periphery of the end of the optoelectronic composite cable 6 by crimping. 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.

[0054] More specifically, in the preferred embodiment, one end of the spring 202 is embedded in the ferrule assembly hole 2033 from the end of the inner core body 2031, and the other end is sleeved on the end of the ferrule 201 away from the conducting end face and abuts against the limiting protrusion.

[0055] By compressing the spring 202, the relative movement of the ferrule 201 with respect to the inner core 203 can be achieved. The compression and rebound force of the spring 202 is used to fully ensure the contact and conduction between the ferrule 201 and the corresponding conductive unit when the connector is inserted into the female head.

[0056] Furthermore, an arc-shaped groove 2035 is provided on the outer periphery of the inner core 203, and a corresponding limiting card 4 is provided. Correspondingly, a limiting groove 105 communicating with the inner core through groove 101 is provided on the outer peripheral wall of the outer shell 1. The limiting groove 105 is aligned with the arc-shaped groove 2035 after the inner core assembly 2 is embedded in the inner core through groove 101. Then, the aforementioned limiting card 4 can be inserted from the limiting groove 105 into the arc-shaped groove 2035, so that one end of the limiting card 4 is embedded in the arc-shaped groove 2035 and the other end is embedded in the limiting groove 105, thereby realizing the axial positioning of the inner core body 2031 in the outer shell 1.

[0057] As an example of implementation, the limiting card 4 is arc-shaped, and its thickness along the radial direction of the outer shell 1 is not less than the groove depth of the arc-shaped card groove 2035. Thus, when the limiting card 4 is inserted from the limiting groove 105 into the arc-shaped card groove 2035, the inner side of the limiting card 4 is embedded in the arc-shaped card groove 2035, and the outer side is embedded in the limiting groove 105. In this way, the axial and circumferential limiting of the inner core component 2 is realized, ensuring the reliability of the inner core component 2 in the outer shell 1.

[0058] For the inner core assembly 2, which is axially limited within the outer casing 1 by the limiting card 4, the end of its insert 201 used for conduction extends out of the sleeve connection part 103 and is located in the insert protective sleeve 104; at this time, the limiting protrusion in the middle of the insert 201 limits and abuts against the inner wall surface of the inner core through groove 101, and the spring 202 that abuts against the limiting protrusion is in a compressed state.

[0059] Obviously, for the optoelectronic connector in the preferred embodiment, the assembly of the ferrule 201 and the inner core 203 in the inner core assembly 2 requires the combination of the outer shell 1 and the limiting card 4.

[0060] Meanwhile, to ensure rapid alignment between the limiting groove 105 and the arc-shaped slot 2035, a positioning component is also provided between the inner core 203 and the outer shell 1 in the preferred embodiment, for example... Figure 5 , Figure 6 The combination of the positioning protrusion 109 and the positioning groove 2036. The positioning groove 2036 extends from the end of the inner core body 2031 toward the center, so that the inner core 203 can only be embedded in the inner core through groove 101 when the positioning protrusion 109 is inserted into the positioning groove 2036.

[0061] Secondly, 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 110 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. 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 110.

[0062] 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 sleeved on the outer periphery of the metal collar of the inner core metal insert 2032. Simultaneously, a snap-fit ​​mechanism is provided between the corresponding metal collar and the tail sleeve 205. For example, an annular groove is formed on the outer periphery of the metal collar, and an elastic protrusion is provided on the inner side of the end of the tail sleeve 205. The connection between the two is achieved by utilizing the embedding of the elastic protrusion in the annular groove. Figure 1 As shown in the image.

[0063] 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.

[0064] By utilizing the aforementioned configuration of outer shell 1, inner core assembly 2, power terminal 3, limiting clip 4, and shell cover 5, corresponding combinations can be obtained as follows: Figure 1 The image shows a vehicle-mounted optoelectronic connector with ferrule protection.

[0065] 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 8 The photoelectric prefabricated cable shown.

[0066] 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 10 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.

[0067] 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 optical fiber unit 601 and wire unit 602. This can be optimized according to actual needs, and will not be elaborated here.

[0068] 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 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. The metal collar of the inner core metal insert 2032 is fixed to the optoelectronic composite cable 6 through a crimping process.

[0069] More specifically, the fiber optic unit 601 is connected to the tail end of the ferrule 201, and two wire units 602 pass through the opening 2034 on the inner core body 2031 and connect to the power terminal 3. The power terminal 3 is embedded in the terminal slot 102. In this way, the optical fiber unit 601 and the inner core assembly 2 can be electrically connected, and the wire units 602 and the power terminal 3 can be electrically connected, forming a connection as shown in the figure. Figure 8 The optical fiber prefabricated cable in the middle.

[0070] 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.

[0071] 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 is passed through the ferrule assembly hole 2033 and the wire unit 602 is passed out from the opening 2034. The fiber unit 601 passing through the ferrule assembly 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 inner core metal insert 2032 is pressed onto the outer periphery of the optoelectronic composite cable 6 through a crimping process to fix the optoelectronic composite cable 6 and the inner core assembly 2. After the optoelectronic composite cable 6 and the inner core assembly 2 are fixed, the two wire units 602 are respectively connected to one end of the power terminal 3 to achieve conductivity between the power terminal 3 and the wire unit 602. The inner core 203 and the insert, one end of which is embedded in the insert assembly hole 2033, are inserted into the inner core through groove 101. The inner core 203 is pushed axially along the inner core through groove 101 until the limiting protrusion in the middle of the insert 201 abuts and is limited to the inner circumference of the end of the inner core through groove 101, and the pre-positioning buckle 2037 matches the pre-positioning slot 110, and the arc-shaped slot 2035 on the outer circumference of the inner core 203 is aligned with the limiting groove 105 on the outer shell 1. Then, the limiting card 4 is inserted into the arc-shaped slot 2035 through the limiting groove 105 to achieve axial positioning of the inner core 203 in the outer shell 1. At this time, the spring 202 is in a compressed state, and the end of the insert 201 to be connected extends into the insert protective sleeve 104 without protruding from the end of the insert protective sleeve 104. Correspondingly, the two electrical terminals 3 connected to the wire unit 602 are respectively embedded in the two embedded cavities of the terminal through groove 102.

[0072] 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.

[0073] For the optoelectronic prefabricated cable in the preferred embodiment, its design based on the vehicle-mounted optoelectronic connector can complete the connector setting through the optoelectronic composite cable. It can not only use optical fiber transmission to replace conventional copper cable transmission, but also effectively realize the reliable setting of power lines, thereby meeting the application scenarios that require simultaneous power connection and signal transmission, such as the application scenarios of vehicle-mounted connectors, especially meeting the application requirements in intelligent connected vehicles, and fully ensuring the reliability of signal transmission and power transmission.

[0074] Furthermore, by utilizing the special design of each component in the vehicle-mounted optoelectronic connector, the requirements for miniaturization of the optoelectronic prefabricated cable 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 while meeting the requirements for ferrule end face inspection and cleaning, thereby improving the service life and conductivity quality of the optoelectronic prefabricated cable, which has good practical value.

[0075] 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 supporting ferrule protection, 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 that can be connected to an optical fiber unit in an optoelectronic composite cable. After assembly, the inner core assembly can be inserted into the inner core through slot with the end of the ferrule fitted therein, such that the ferrule end face extends out of the end face of the plug-in end. A ferrule protective sleeve is provided on the end face of the plug-in end along the axial direction of the inner core through slot to protect the ferrule end face. After the ferrule is assembled in place in the outer shell, its ferrule end face extends into the ferrule protective sleeve, and the ferrule end face does not extend out of the ferrule protective sleeve.

2. The automotive optoelectronic connector supporting ferrule protection according to claim 1, characterized in that, The insert protective sleeve is integrally formed with the outer shell; or The ferrule protective sleeve is detachably connected to the insertion end of the outer shell, so that the end face of the ferrule can be exposed after the ferrule protective sleeve is removed; or The ferrule protective sleeve is connected to the outer shell through an elastic element, so that the ferrule protective sleeve can move axially relative to the outer shell after the elastic element is compressed, and the end face of the ferrule can protrude from the end of the ferrule protective sleeve after the elastic element is pressed and retracted.

3. The automotive optoelectronic connector supporting ferrule protection according to claim 2, characterized in that, The insert protective sleeve is detachably connected to the insertion end of the outer shell, and a sleeve connection part is provided protruding at the end of the insertion end; The ferrule protective sleeve is detachably connected to the sleeve connecting part, and the length of the sleeve connecting part is less than the length of the ferrule extending out of the insertion end face when assembled.

4. The automotive optoelectronic connector supporting ferrule protection according to claim 2 or 3, characterized in that, The detachable connection is a threaded connection, a snap-fit ​​connection, or a limiting component connection.

5. The automotive optoelectronic connector supporting ferrule protection according to any one of claims 1 to 3, characterized in that, The inner core assembly has an arc-shaped slot on its outer periphery, and the outer shell has a limiting groove that penetrates the inner cavity; and The vehicle-mounted optoelectronic connector also includes a limiting card; the arc-shaped card slot and the limiting slot can be aligned with each other when the inner core component is embedded in the housing, and the limiting card can be inserted from the limiting slot into the arc-shaped card slot, thus axially locking the inner core component in the housing.

6. The automotive optoelectronic connector supporting ferrule protection according to any one of claims 1 to 3, characterized in that, The inner core assembly includes a ferrule, a spring, and an inner core; One end of the inner core is a ferrule assembly hole, and the other end of the inner core is used to connect the optical fiber unit and the wire unit. An opening is provided on the outer periphery of the inner core for the wire unit to pass through. One end of the spring can be sleeved and abutted against the tail end of the ferrule, and the other end can be inserted into the ferrule assembly hole and axially limited. The end of the inner core with the ferrule assembly hole can be coaxially inserted into the inner core through slot and fixed after matching the ferrule and the spring.

7. The automotive optoelectronic connector supporting ferrule protection according to claim 6, characterized in that, The outer periphery of the terminal is provided with an assembly slot that communicates with the inner cavity, and a cover that can be detached and installed in the assembly slot is provided; and the inner core embedded in the inner core slot has its opening facing the assembly slot.

8. The automotive optoelectronic connector supporting ferrule protection according to claim 6, characterized in that, 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 one end of the inner core body away from the insertion hole, 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 used to connect the optical fiber unit and the wire unit; and / or The inner core assembly also includes a dust cap, one end of which can be embedded into the insert protective sleeve and fitted onto the end of the insert with the insert end face.

9. The automotive optoelectronic connector supporting ferrule protection according to any one of claims 1 to 3, 7, and 8, characterized in that, The electrical terminals are arranged in pairs, and the terminal slot includes two embedded cavities arranged side by side. and / or The terminal through slot and the inner core through slot are arranged in a staggered layer, and the distance between the central axis of the inner core through slot and the central axis of the two embedded cavities is not equal; and / or 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 on the outer periphery of the plug-in terminal in an upward ring. 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.

10. A vehicle-mounted prefabricated optical cable supporting ferrule protection, characterized in that... ； The optoelectronic prefabricated cable includes a vehicle-mounted optoelectronic connector with ferrule protection as described in any one of claims 1 to 9 and an optoelectronic composite cable assembled and connected with the vehicle-mounted optoelectronic connector. The optoelectronic composite cable includes an optical fiber unit and a wire unit, which are respectively introduced from the terminal block; wherein, the wire unit is connected to the power terminal, and the power terminal is embedded in the terminal slot; the optical fiber unit is connected to the ferrule, and one end of the inner core assembly with the ferrule is embedded in the inner core slot, such that the ferrule end face extends into the ferrule protective sleeve and does not protrude from the ferrule protective sleeve.

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