Photoelectric hybrid watertight connector

Abstract

A photoelectric hybrid watertight connector, relating to the technical field of photoelectric connectors. The photoelectric hybrid watertight connector comprises a plug and a socket. The plug comprises a first optical ferrule assembly (11) and a first optical cable; the first optical ferrule assembly (11) comprises a first housing (113) and a plug optical ferrule (111); and a first adhesive group is filled between the first optical cable and the first housing (113). The socket comprises a second optical ferrule assembly (21) and a second optical cable; the second optical ferrule assembly (21) comprises a second housing (212) and a socket optical ferrule (211); and a second adhesive group is filled between the second optical cable and the second housing (212). The first adhesive group comprises a sealant (1161) and a structural adhesive (1162), the sealant (1161) and the structural adhesive (1162) are distributed in the axial direction of the plug, and the structural adhesive (1162) is provided at a position distant from the plug optical ferrule (111); and / or the second adhesive group comprises a sealant (1161) and a structural adhesive (1162), the sealant (1161) and the structural adhesive (1162) are distributed in the axial direction of the socket, and the structural adhesive (1162) is provided at a position distant from the socket optical ferrule (211). The photoelectric hybrid watertight connector has good longitudinal watertightness, reduces the radial size, and conforms to the miniaturization development trend of photoelectric hybrid watertight connectors.

Description

Optical and electrical hybrid watertight connector

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on March 4, 2024, with application number 202410239459.0 and application name “Optoelectronic Hybrid Watertight Connector”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of optoelectronic connectors, and in particular to an optoelectronic hybrid watertight connector. Background Art

[0003] Watertight connectors can be widely used in underwater instrument and equipment systems, underwater communication systems, sonar systems, underwater robot systems and other occasions, providing stable and reliable power transmission, signal acquisition and good watertight performance for deep-sea general equipment such as submersibles and underwater robots.

[0004] With the continuous development of the marine industry, underwater submersibles are moving towards miniaturization and intelligence, and the amount of information transmission is increasing. However, the volume requirements for watertight connectors are getting smaller and smaller. Since the information transmission efficiency of optical fibers is much greater than that of cables, there is a demand for development from traditional electrical connectors to miniaturized watertight connectors.

[0005] An important indicator of a watertight connector is that the socket connector must have a longitudinal watertight function to prevent water from leaking from the connector mating part or the optical cable, causing water to enter the equipment compartment and cause significant losses. Traditional watertight connectors mostly use O-rings to achieve longitudinal watertightness of the optical contacts, which makes the connector bulky and is not conducive to its miniaturization design.

[0006] In related technologies, some watertight connectors are usually encapsulated with a waterproof layer on their outer surface. Although the waterproof layer can enhance the compressive strength of the watertight connector while ensuring that the watertight connector achieves a better waterproof sealing effect, the radial and axial dimensions of this watertight connector are relatively large, which makes it difficult to meet the miniaturization design requirements of the watertight connector. Summary of the Invention

[0007] The present application provides an optoelectronic hybrid watertight connector, which is used to solve the problem of large size of existing watertight connectors.

[0008] The present application provides an optoelectronic hybrid watertight connector, comprising: a plug and a socket;

[0009] The plug includes a first optical ferrule assembly and a first optical cable. The first optical ferrule assembly includes a first housing and a plug optical ferrule. A first stopper is provided within the first housing. A first end of the first stopper extends toward the front end of the first housing. A first filling cavity is formed between the second end of the first stopper and the rear end of the first housing. The plug optical ferrule is disposed in the first stopper. One end of the first optical cable is inserted into the first filling cavity and connected to the plug optical ferrule. The first filling cavity is filled with a first adhesive group to achieve a seal between the first optical cable and the first housing.

[0010] The receptacle includes a second optical ferrule assembly and a second optical cable. The second optical ferrule assembly includes a second housing and a receptacle optical ferrule. A second stopper is provided within the second housing. A first end of the second stopper extends toward the front end of the second housing. A second filling cavity is formed between the second end of the second stopper and the rear end of the second housing. The receptacle optical ferrule is disposed in the second stopper. One end of the second optical cable is inserted into the second filling cavity and connected to the receptacle optical ferrule. The second filling cavity is filled with a second adhesive group to achieve a seal between the second optical cable and the second housing.

[0011] After the plug and the socket are plugged into each other, the first optical pin assembly and the second optical pin assembly are plugged and connected;

[0012] In which, the first glue group includes sealant and structural glue, the sealant and the structural glue are distributed along the axial direction of the plug, and the structural glue is arranged on the side of the sealant away from the first stop member; and / or, the second glue group includes sealant and structural glue, the sealant and the structural glue are distributed along the axial direction of the socket, and the structural glue is arranged on the side of the sealant away from the second stop member.

[0013] According to an optoelectronic hybrid watertight connector provided by the present application, the first optical pin assembly further includes a first glue potting sealing sleeve, which is disposed in the first potting cavity. At least a portion of the outer wall of the first glue potting sealing sleeve is connected to the inner wall of the first housing. The inner wall of the first glue potting sealing sleeve is provided with a plurality of first annular grooves distributed along the axial direction, each of which extends along the circumference of the first housing. The first optical cable passes through the first glue potting sealing sleeve and is connected to the plug optical pin; the first glue group is filled between the first glue potting sealing sleeve and the first optical cable; and / or the second optical pin assembly further includes a second glue potting sealing sleeve, the outer wall of the second glue potting sealing sleeve is connected to the inner wall of the second housing. The inner wall of the second glue potting sealing sleeve is provided with a plurality of second annular grooves distributed along the axial direction, each of which extends along the circumference of the second housing. The second optical cable passes through the second glue potting sealing sleeve and is connected to the receptacle optical pin; the second glue group is filled between the second glue potting sealing sleeve and the second optical cable.

[0014] According to an optoelectronic hybrid watertight connector provided by the present application, the first stopper is provided with a first wire-passing hole, the plug optical pin is provided in the first wire-passing hole, the first optical cable is extended into the first wire-passing hole and is connected with the plug optical pin; the second stopper is provided with a second wire-passing hole, the socket optical pin is provided in the second wire-passing hole, the second optical cable is extended into the second wire-passing hole and is connected with the socket optical pin; the first optical pin assembly further includes a first elastic member, and the second optical pin assembly further includes a second elastic member; the first elastic member is provided in the first wire-passing hole, and one end of the first elastic member is connected to the plug optical pin, and the other end is connected to the inner wall of the first wire-passing hole; the second elastic member is provided in the second wire-passing hole, and one end of the second elastic member is connected to the socket optical pin, and the other end is connected to the inner wall of the second wire-passing hole.

[0015] According to an optoelectronic hybrid watertight connector provided by the present application, the first stopper includes a front stopper and a rear stopper, and the front stopper and the rear stopper are distributed frontally and rearwardly along the axial direction of the first shell; the front stopper is provided with a first through hole, and the rear stopper is provided with a second through hole, and the first through hole and the second through hole are coaxially arranged to form a wire passing hole, and the plug optical pin is passed through the wire passing hole; the inner diameter of the second through hole is smaller than the inner diameter of the first through hole; the other end of the first elastic member is connected to the side wall of the rear stopper exposed to the first through hole.

[0016] According to an optoelectronic hybrid watertight connector provided by the present application, the first optical pin assembly further includes a positioning member, which is arranged on the first stop member and protrudes from the front surface of the first stop member; the second stop member is provided with a positioning hole adapted to the positioning member; after the plug and the socket are plugged in, the positioning member is plugged into and connected with the positioning hole.

[0017] According to the optoelectronic hybrid watertight connector provided by the present application, there are multiple positioning members and multiple positioning holes; after the plug and the socket are plugged into each other, the multiple positioning members are plugged and connected with the multiple positioning holes in a one-to-one correspondence.

[0018] According to an optoelectronic hybrid watertight connector provided by the present application, the plug also includes a plug shell and a vulcanized tail sleeve, the first optical pin assembly is arranged on the plug shell, and the vulcanized tail sleeve is sleeved on the tail end of the plug shell; the outer surface of the plug shell that contacts the vulcanized tail sleeve is provided with a third annular groove, and the third annular groove extends around the central axis of the plug shell.

[0019] According to an optoelectronic hybrid watertight connector provided by the present application, the plug also includes a screw sleeve, which is sleeved on the front end of the plug shell, and a gap is formed between the front end of the screw sleeve and the front end of the plug shell, and the inner wall of the front end of the screw sleeve is provided with an internal thread; the socket also includes a socket shell, the outer wall of the tail end of the socket shell is provided with an external thread, and the inner diameter of the front end of the socket shell matches the inner diameter of the front end of the plug shell; after the plug and the socket are plugged into each other, the tail end of the socket shell is located in the gap, and the screw sleeve is threadedly connected to the socket shell.

[0020] According to the optoelectronic hybrid watertight connector provided by the present application, the plug further includes a first epoxy component, the first epoxy component including a plurality of first electrical pins and a first epoxy mounting piece, the plurality of first electrical pins being provided on the first epoxy mounting piece and integrally injection-molded; a first mounting hole is provided in the middle of the first epoxy mounting piece, the first optical pin assembly is provided in the first mounting hole, and the plurality of first electrical pins are arranged around the first mounting hole;

[0021] The socket further includes a second epoxy component, the second epoxy component including a plurality of second electrical pins and a second epoxy mounting piece, the plurality of second electrical pins being disposed on the second epoxy mounting piece and integrally injection molded; a second mounting hole is defined in the middle of the second epoxy mounting piece, the second optical pin assembly is disposed in the second mounting hole, and the plurality of second electrical pins are disposed around the second mounting hole;

[0022] When the plug and the socket are plugged into each other, the plurality of first electrical pins and the plurality of second electrical pins are connected in a one-to-one correspondence.

[0023] According to an optoelectronic hybrid watertight connector provided by the present application, the socket also includes a socket shell. Along the radial direction of the socket shell, the second optical pin assembly, the second epoxy assembly and the socket shell are arranged in sequence from the inside to the outside; sealing members are provided between the socket shell and the second epoxy mounting member, and between the second shell and the second epoxy mounting member.

[0024] The optoelectronic hybrid watertight connector provided by the present application has a plug of the optoelectronic hybrid watertight connector, and a first stopper is provided in the first shell of the plug. The first stopper is used to provide a mounting support for the optical pin of the plug, effectively reducing the possible gap in the first shell when the optical pin of the plug is installed at the front end of the first shell, and a first perfusion cavity can be formed between the second end of the first stopper and the rear end of the first shell, so as to facilitate the injection of sealant and structural adhesive into the interior of the first perfusion cavity to achieve sealing between the first optical cable and the first shell; because the structural adhesive is located on the side of the sealant away from the first stopper, while the sealant is used to seal the part where the first stopper is located, the structural adhesive can withstand the water pressure from the rear end of the first shell, which can avoid the problem of water leakage caused by deformation of the sealant due to water pressure, thereby ensuring a reliable watertight connection between the first optical cable and the first shell.

[0025] Similarly, for the socket of the optoelectronic hybrid watertight connector, a watertight connection between the second optical cable and the second shell can be achieved by setting a second stopper and a second filling cavity in the second shell of the socket and filling the interior of the second filling cavity with sealant and structural adhesive.

[0026] Compared with traditional watertight connectors, the optoelectronic hybrid watertight connector of the present application can achieve good longitudinal watertightness without covering its outer surface with a waterproof layer. At the same time, it is conducive to reducing the radial size of the optoelectronic hybrid watertight connector, which is in line with the development trend of miniaturized optoelectronic hybrid watertight connectors. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the present application or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0028] FIG1 is a schematic structural diagram of a plug provided in some embodiments of the present application;

[0029] FIG2 is a cross-sectional view of a first optical pin assembly provided in some embodiments of the present application;

[0030] FIG3 is a schematic structural diagram of a first optical pin assembly provided in some embodiments of the present application;

[0031] FIG4 is a schematic structural diagram of a socket provided in some embodiments of the present application;

[0032] FIG5 is a cross-sectional view of a second optical pin assembly provided in some embodiments of the present application;

[0033] FIG6 is a schematic structural diagram of a second optical pin assembly provided in some embodiments of the present application;

[0034] FIG7 is one of the structural schematic diagrams of the second epoxy assembly provided in some embodiments of the present application;

[0035] FIG8 is a second schematic structural diagram of the second epoxy component provided in some embodiments of the present application.

[0036] Figure numerals: 11: first optical pin assembly; 111: plug optical pin; 112: first elastic member; 113: first shell; 114: positioning member; 115: first stopper; 1151: front stopper; 1152: rear stopper; 116: first glue sealing sleeve; 1161: sealant; 1162: structural adhesive; 117: first limiting member; 118: first clamping ring; 12: plug shell; 13: screw tail; 141: front insulating plate of plug; 142: rear insulating plate of plug; 15: electrical jack assembly; 16: glue sleeve; 17: support sleeve; 18: vulcanized tail sleeve; 19: screw sleeve; 21: second optical pin assembly; 211: socket optical pin; 212: second shell; 213: second stopper; 214: Positioning hole; 215: second limiting member; 216: C-shaped sleeve; 217: second elastic member; 218: second glue sealing sleeve; 22: socket housing; 23: second epoxy component; 231: second electrical pin; 232: second epoxy mounting member; 2321: second mounting hole; 2322: positioning groove. DETAILED DESCRIPTION

[0037] To make the objectives, technical solutions, and advantages of this application more clear, the technical solutions of this application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0038] With the continuous development of the marine industry, the volume requirements of watertight connectors are getting smaller and smaller, which requires the development from traditional electrical connectors to miniaturized watertight connectors.

[0039] However, traditional watertight connectors all use O-rings to achieve longitudinal watertightness of the optical contacts, which makes the connector bulky and is not conducive to its miniaturization design.

[0040] The present application provides an optoelectronic hybrid watertight connector, which can achieve longitudinal sealing of the optoelectronic hybrid watertight connector, while reducing the radial size of the optoelectronic hybrid watertight connector and reducing the volume of the optoelectronic hybrid watertight connector.

[0041] The optoelectronic hybrid watertight connector of the present application is described below with reference to FIG. 1 to FIG. 8 .

[0042] As shown in Figures 1 and 4 , the optoelectronic hybrid watertight connector provided herein includes a plug and a receptacle. The plug includes a first optical pin assembly 11 and a first optical cable. The first optical pin assembly 11 includes a first housing 113 and a plug optical pin 111. A first stopper 115 is disposed within the first housing 113. The first end of the first stopper 115 extends toward the front end of the first housing 113. A first injection cavity is formed between the second end of the first stopper 115 and the rear end of the first housing 113. The plug optical pin 111 is disposed within the first stopper 115. One end of the first optical cable is inserted into the first injection cavity and connected to the plug optical pin 111. The first injection cavity is filled with a first adhesive group to achieve a seal between the first optical cable and the first housing 113. The inner diameter of the first injection cavity gradually decreases from front to back along the extension direction of the first housing 113.

[0043] It is understood that the first end of the first stopper 115 extends toward the front end of the first housing 113, and the second end of the first stopper 115 extends to the middle of the first housing 113. The peripheral wall of the first stopper 115 mates with the inner wall of the first housing 113, thereby providing internal support for the first housing 113 based on the first stopper 115 and minimizing any gap between the front end and the middle of the first housing 113. Because the first potting cavity is filled with sealant 1161 and structural adhesive 1162, the sealant 1161 and structural adhesive 1162 not only achieve a seal between the first optical cable and the inner wall of the first housing 113, but also ensure that no gap exists within the first potting cavity. This design effectively enhances the first housing 113's underwater pressure resistance and helps reduce underwater losses of the product.

[0044] The receptacle includes a second optical ferrule assembly 21 and a second optical cable. The second optical ferrule assembly 21 includes a second housing 212 and a receptacle optical ferrule 211. A second stopper 213 is disposed within the second housing 212. The first end of the second stopper 213 extends toward the front end of the second housing 212, and the second end of the second stopper 213 extends to the middle of the second housing 212. A second filling cavity is formed between the second end of the second stopper 213 and the rear end of the second housing 212. The receptacle optical ferrule 211 is disposed within the second stopper 213. One end of the second optical cable is inserted into the second filling cavity and connected to the receptacle optical ferrule 211. The second filling cavity is filled with a second adhesive to seal the second optical cable and the second housing 212. The inner diameter of the second filling cavity gradually decreases from front to back along the extension direction of the second housing 212.

[0045] It is understood that the first end of the second stopper 213 extends toward the front end of the second housing 212, and the second end of the second stopper 213 extends to the middle of the second housing 212. The peripheral wall of the second stopper 213 mates with the inner wall of the second housing 212, thereby providing internal support for the second housing 212 based on the second stopper 213 and minimizing any gap between the front end and the middle of the second housing 212. Because the second potting cavity is filled with sealant 1161 and structural adhesive 1162, the sealant 1161 and structural adhesive 1162 not only seal the second optical cable against the inner wall of the second housing 212, but also ensure that no gap exists within the second potting cavity. This design effectively enhances the underwater pressure resistance of the second housing 212 and helps reduce underwater losses of the product.

[0046] Furthermore, after the plug and the socket are mated, the first optical pin assembly 11 is plugged and connected with the second optical pin assembly 21. The first adhesive group includes a sealant 1161 and a structural adhesive 1162, which are distributed along the axial direction of the plug, and the structural adhesive 1162 is disposed on a side of the sealant 1161 away from the first stopper 115. Furthermore, the second adhesive group includes a sealant 1161 and a structural adhesive 1162, which are distributed along the axial direction of the socket, and the structural adhesive 1162 is disposed on a side of the sealant 1161 away from the second stopper 213.

[0047] The tail end of the plug optical pin 111 is used to connect to one end of the first optical cable.

[0048] It can be understood that the sealant 1161 can be deformed according to the shape of the sealing surface and has a certain degree of adhesion, but is easy to deform; the structural adhesive 1162 has high strength, good stability after curing and is not easy to deform. The structural adhesive 1162 is set at one end of the sealant 1161 to withstand water pressure and prevent the sealant 1161 from leaking due to deformation due to water pressure.

[0049] In some embodiments, along the axial direction of the first shell 113, the structural adhesive 1162 is arranged on the outside of the sealant 1161, that is, between the tail end opening of the first shell 113 and the sealant 1161, which can prevent the lateral deformation of the sealant 1161 and ensure the sealing effect of the sealant 1161.

[0050] The sealant 1161 may be a sealant known in the art, such as polyurethane sealant, silicone rubber sealant, polysulfide rubber sealant, and the like.

[0051] The structural adhesive 1162 may be a sealing adhesive known in the art, such as an epoxy support adhesive or a modified epoxy support adhesive.

[0052] The types of colloids and the injection order of the colloids contained in the first and second colloid groups may be the same or different.

[0053] In some embodiments, the first glue group and the second glue group both include sealant 1161 and structural glue 1162, and the structural glue 1162 is arranged between the sealant 1161 and the opening of the shell, so that the structural glue 1162 can better withstand water pressure and avoid the problem of water leakage caused by deformation of the sealant 1161 due to water pressure.

[0054] The optoelectronic hybrid watertight connector provided by the present application has a plug of the optoelectronic hybrid watertight connector. A first stopper 115 is provided in the first shell 113 of the plug. The first stopper 115 is used to provide a mounting support for the optical pin 111 of the plug. When the optical pin 111 of the plug is mounted on the front end of the first shell 113, the gap that may exist in the first shell 113 is effectively reduced. A first perfusion cavity can be formed between the second end of the first stopper 115 and the rear end of the first shell 113, which facilitates the filling of the first perfusion cavity. Sealant 1161 and structural adhesive 1162 seal the first optical cable and first housing 113. Because structural adhesive 1162 is located on the side of sealant 1161 facing away from first stopper 115, sealant 1161 seals the area where first stopper 115 is located while also withstanding water pressure from the rear end of first housing 113. This prevents deformation of sealant 1161 due to water pressure and causes water leakage, ensuring a reliable watertight connection between the first optical cable and first housing 113. The design of structural adhesive 1162 ensures that the plug can withstand a pressure of up to 20 kPa at the rear end of first housing 113.

[0055] Similarly, for the receptacle of the optoelectronic hybrid watertight connector, a watertight connection between the second optical cable and the second housing 212 can be achieved by providing a second stopper 213 and a second potting cavity within the receptacle's second housing 212. By injecting sealant and structural adhesive into the second potting cavity, a watertight connection can be achieved. The design of the structural adhesive 1162 ensures that the receptacle can withstand a pressure of up to 20 kPa at the rear end of the second housing 212.

[0056] Compared with traditional watertight connectors, the optoelectronic hybrid watertight connector of the present application can achieve good longitudinal watertightness without covering its outer surface with a waterproof layer. At the same time, it is conducive to reducing the radial size of the optoelectronic hybrid watertight connector, which is in line with the development trend of miniaturized optoelectronic hybrid watertight connectors.

[0057] Furthermore, as shown in Figures 2 and 5, the first optical pin assembly 11 further includes a first glue potting sealing sleeve 116. The first glue potting sealing sleeve 116 is disposed in the first potting cavity. One end of the first glue potting sealing sleeve 116 facing the front end of the first shell 113 abuts against the second end of the first stopper 115. An end of the first glue potting sealing sleeve 116 facing away from the front end of the first shell 113 passes through the rear end of the first shell 113 and abuts against the rear end of the first shell 113.

[0058] At least part of the outer wall of the first glue-potting sealing sleeve 116 is connected to the inner wall of the first shell 113. The inner wall of the first glue-potting sealing sleeve 116 is provided with a plurality of first annular grooves distributed along the axial direction. Each first annular groove extends along the circumference of the first shell 113. The first optical cable passes through the first glue-potting sealing sleeve 116 and is connected to the plug optical pin 111; the first glue group is filled between the first glue-potting sealing sleeve 116 and the first optical cable.

[0059] And / or, the second optical pin assembly 21 further includes a second glue potting sealing sleeve 218, which is disposed in the second potting cavity. One end of the second glue potting sealing sleeve 218 facing the front end of the second shell 212 abuts against the second end of the second stopper 213, and one end of the second glue potting sealing sleeve 218 facing away from the front end of the second shell 212 passes through the rear end of the second shell 212 and abuts against the rear end of the second shell 212.

[0060] At least part of the outer wall of the second glue-potting sealing sleeve 218 is connected to the inner wall of the second shell 212. The inner wall of the second glue-potting sealing sleeve 218 is provided with a plurality of second annular grooves distributed along the axial direction. Each second annular groove extends along the circumference of the second shell 212. The second optical cable passes through the second glue-potting sealing sleeve 218 and is connected to the socket optical pin 211; the second glue group is filled between the second glue-potting sealing sleeve 218 and the second optical cable.

[0061] Among them, at least part of the first glue-potting sealing sleeve 116 is arranged inside the first shell 113, and the outer diameter of the first glue-potting sealing sleeve 116 is adapted to the inner diameter of the first shell 113 to achieve that at least part of the outer wall of the first glue-potting sealing sleeve 116 is installed in the first shell 113.

[0062] The outer wall of the front end of the first glue-potting sealing sleeve 116 is connected to the inner wall of the first shell 113 , and the connection method can be a detachable connection such as a contact connection and a threaded connection.

[0063] In some embodiments, the outer diameter of the first glue-potting sealing sleeve 116 is smaller than the front opening of the first shell 113 , so that the first glue-potting sealing sleeve 116 can be inserted into the interior of the first shell 113 from the front opening of the first shell 113 .

[0064] The opening direction of the first annular groove faces the central axis of the first glue-potting sealing sleeve 116 , and the opening direction of the second annular groove faces the central axis of the second glue-potting sealing sleeve 218 .

[0065] It can be understood that the first glue-potting sealing sleeve 116 can increase the contact area with the sealant 1161 and the structural adhesive 1162 by setting the first annular groove, thereby improving the curing stability; at the same time, after the sealant 1161 and the structural adhesive 1162 are cured, an interlocking structure is formed with the first annular groove, thereby avoiding the deformation of the sealant 1161 and the structural adhesive 1162, achieving an axial limiting effect, and forming a stepped structural seal, thereby improving the longitudinal watertight performance of the plug.

[0066] In some embodiments, the front portion 10 mm to 15 mm of the first sealing sleeve 116 is filled with sealant 1161 , and the sealant 1161 and the polyurethane sheathed first optical cable are vulcanized to longitudinally seal the first optical cable.

[0067] In some embodiments, the tail end of the first glue-potting sealing sleeve 116 is configured as a conical structure, and the conical structure is potted with structural glue 1162 to support the sealant 1161 and prevent the water pressure from deforming the sealant 1161 and causing watertight failure.

[0068] At least a portion of the second potting sealing sleeve 218 is disposed inside the second shell 212 , and an outer diameter of the second potting sealing sleeve 218 matches an inner diameter of the second shell 212 , so that at least a portion of the outer wall of the second potting sealing sleeve 218 is installed inside the second shell 212 .

[0069] The outer wall of the tail end of the second glue-potting sealing sleeve 218 is connected to the inner wall of the second shell 212 , and the connection method can be a detachable connection such as a contact connection and a threaded connection.

[0070] A seal is formed between the outer wall of the tail end of the second potting sealing sleeve 218 and the inner wall of the second shell 212 to ensure the longitudinal watertightness of the socket.

[0071] In some embodiments, the outer diameter of the second potting seal 218 is smaller than the outer diameter of the rear end opening of the second shell 212 , so that the second potting seal 218 can be inserted into the interior of the second shell 212 from the rear end opening.

[0072] Furthermore, a plurality of first annular grooves and a plurality of second annular grooves may be provided, wherein the plurality of first annular grooves are distributed along the axial direction of the first shell 113 , and the plurality of second annular grooves are distributed along the axial direction of the second shell 212 .

[0073] In the first shell 113 , part of the groove bodies in the plurality of first annular grooves are in contact with and connected to the sealant 1161 , and another part of the groove bodies in the plurality of first annular grooves are in contact with and connected to the structural adhesive 1162 , so as to improve the longitudinal sealing effect.

[0074] Furthermore, at least a portion of the inner wall of the first glue-filled sealing sleeve 116 is provided with a polishing layer, and at least a portion of the inner wall of the second glue-filled sealing sleeve 218 is provided with a polishing layer, and the sealant 1161 is provided between the optical cable and the polishing layer.

[0075] At least a portion of the inner wall surface of the first glue-potting sealing sleeve 116 is polished, and at least a portion of the inner wall surface of the second glue-potting sealing sleeve 218 is polished to form a polished layer.

[0076] The grit of the sandpaper used for grinding is 80-100. After grinding, the adhesive is applied to ensure that the sealant 1161 is firmly bonded to the glue-filled sealing sleeve.

[0077] In some embodiments, the plug further includes a first sealing ring, and the socket further includes a second sealing ring; the first sealing ring is arranged between the first glue potting sealing sleeve 116 and the first shell 113 to achieve sealing between the first glue potting sealing sleeve 116 and the first shell 113; the second sealing ring is arranged between the second glue potting sealing sleeve 218 and the second shell 212 to achieve sealing between the second glue potting sealing sleeve 218 and the second shell 212.

[0078] Among them, a first receiving groove is provided on the outer wall of the first glue-potting sealing sleeve 116 and / or the inner wall of the first shell 113, the first receiving groove extends around the central axis of the first shell 113, and the first sealing ring is provided in the first receiving groove; a second receiving groove is provided on the outer wall of the second glue-potting sealing sleeve 218 and / or the inner wall of the second shell 212, the second receiving groove extends around the central axis of the second shell 212, and the second sealing ring is provided in the second receiving groove.

[0079] Furthermore, the rear end of the first potting sealant 116 is located outside the first housing 113. The first optical pin assembly 11 further includes a first stopper 117 connected to the rear end of the first potting sealant 116, with its sidewalls contacting the outer wall of the first housing 113 to limit the position of the first potting sealant 116 and prevent axial movement of the first potting sealant 116 along the first housing 113. The rear end of the second potting sealant 218 is located outside the second housing 212. The second optical pin assembly 21 further includes a second stopper 215 connected to the rear end of the second potting sealant 218, with its sidewalls contacting the outer wall of the second housing 212 to limit the position of the second potting sealant 218 and prevent axial movement of the second potting sealant 218 along the second housing 212.

[0080] In some embodiments, the outer diameter of the front end of the first glue potting sealing sleeve 116 is larger than the outer diameter of the rear end of the first glue potting sealing sleeve 116, the outer diameter of the front end of the first glue potting sealing sleeve 116 is less than or equal to the front end opening of the first shell 113, and the outer diameter of the rear end of the first glue potting sealing sleeve 116 is less than or equal to the rear end opening of the first shell 113, so that the first glue potting sealing sleeve 116 can be installed into the interior of the first shell 113 from the front end opening of the first shell 113, the rear end of the first glue potting sealing sleeve 116 can extend from the rear end opening of the first shell 113, and the front end of the first glue potting sealing sleeve 116 is limited by the rear end opening of the first shell 113.

[0081] In some embodiments, the first limiting member 117 and the second limiting member 215 can be limiting nuts, the rear end of the second glue potting sealing sleeve 218 is provided with an external thread, and the tail end of the second glue potting sealing sleeve 218 is provided with an external thread. The first limiting member 117 and the second glue potting sealing sleeve 218, and the second limiting member 215 and the second glue potting sealing sleeve 218 are threadedly connected.

[0082] Among them, one side wall of the first limiting member 117 contacts the outer wall of the tail end of the first shell 113, and the front end of the first glue-potting sealing sleeve 116 contacts the inner wall of the tail end of the first shell 113. The first limiting member 117 fixes the front end of the first glue-potting sealing sleeve 116 in the first shell 113, plays a limiting role, and has a certain sealing effect.

[0083] The second limiting member 215 has the same structure as the first limiting member 117 and its description is omitted here.

[0084] Furthermore, the first stopper 115 is provided with a first wire-passing hole, the plug optical pin 111 is passed through the first wire-passing hole, and the first optical cable extends into the first wire-passing hole and is connected to the plug optical pin 111 .

[0085] The second stopper 213 is provided with a second wire-passing hole, the socket optical pin 211 is passed through the second wire-passing hole, and the second optical cable extends into the second wire-passing hole and is connected to the socket optical pin 211 .

[0086] The first optical pin assembly 11 further includes a first elastic member 112, and the second optical pin assembly 21 further includes a second elastic member 217; the first elastic member 112 is disposed in the first wire-passing hole, and one end of the first elastic member 112 is connected to the plug optical pin 111, and the other end is connected to the inner wall of the first wire-passing hole; the second elastic member 217 is disposed in the second wire-passing hole, and one end of the second elastic member 217 is connected to the socket optical pin 211, and the other end is connected to the inner wall of the second wire-passing hole.

[0087] The outer wall of the first stopper 115 is adapted to the inner wall of the first shell 113, including the outer diameter of the first stopper 115 being adapted to the inner diameter of the first shell 113 and the outer wall shape of the first stopper 115 being adapted to the inner wall shape of the first shell 113, so that the first stopper 115 can be fixedly installed inside the first shell 113.

[0088] The first cable hole is a through hole, through which the plug optical pin 111 and the first optical cable pass. The front end of the plug optical pin 111 opens toward the front end of the first shell 113 for connection with the socket optical pin 211 .

[0089] In some embodiments, a plurality of first wire-passing holes are provided, and the plurality of first wire-passing holes are used to install the plug optical pins 111 and the first elastic member 112 .

[0090] The first optical pin assembly 11 includes a plurality of plug optical pins 111 , which are arranged in a one-to-one correspondence with a plurality of first wire holes. A first elastic member 112 is provided between each plug optical pin 111 and the first wire hole.

[0091] The first elastic member 112 may be a spring or other workpiece with resilience.

[0092] The first wire hole is loosely matched with the plug optical pin 111 . When the first elastic member 112 is a spring, the spring is sleeved on the plug optical pin 111 , and the spring is arranged in the gap between the first elastic member 112 and the plug optical pin 111 .

[0093] In some embodiments, the gap between the inner wall of the first wire hole and the outer wall of the plug optical pin 111 is 0.2-0.3 mm, and the spring is disposed in the gap.

[0094] It can be understood that due to the elastic effect of the first elastic member 112, when the placement position of the plug optical pin 111 is deflected, the first elastic member 112 can rebound and deform to automatically reset the plug optical pin 111, ensuring that the central axis of the plug optical pin 111 is coaxial with the central axis of the wire hole.

[0095] In this embodiment, a first elastic member 112 is provided, one end of the first elastic member 112 is connected to the plug optical pin 111, and the other end is connected to the first wire hole. When there is a processing deviation or installation deviation in the plug components, the position of the plug optical pin 111 can be adjusted through the adjustment function of the first elastic member 112 to achieve precise insertion, effectively reduce the insertion loss of the optical signal, and improve the information transmission efficiency.

[0096] Furthermore, the first stopper 115 includes a front stopper 1151 and a rear stopper 1152, and the front stopper 1151 and the rear stopper 1152 are distributed front and rear along the axial direction of the first shell 113; the front stopper 1151 is provided with a first through hole, and the rear stopper 1152 is provided with a second through hole, and the first through hole and the second through hole are coaxially arranged to form a wire passing hole, and the plug optical pin 111 is passed through the wire passing hole; the inner diameter of the second through hole is smaller than the inner diameter of the first through hole; the other end of the first elastic member 112 is connected to the side wall of the rear stopper 1152 exposed to the first through hole to ensure the stability of the connection.

[0097] The plug optical pin 111 is fixed between the front stopper 1151 and the rear stopper 1152 .

[0098] A first limiting platform is provided at the front end of the first through hole. The first limiting platform extends circumferentially around the central axis of the first through hole. The inner diameter of the first limiting platform is smaller than the inner diameter of the first through hole.

[0099] In some embodiments, the tail end of the plug optical pin 111 is provided with a second limit platform that is compatible with the first limit platform, the inner diameter of the second limit platform is smaller than the inner diameter of the first through hole, the inner diameter of the second limit platform is larger than the inner diameter of the first limit platform, and the inner diameter of the second limit platform is larger than the inner diameter of the second through hole, so that the tail end of the plug optical pin 111 is confined in the first through hole.

[0100] One end of the first elastic member 112 is connected to the side wall of the second limiting platform facing the rear stopper 1152, and the other end is connected to the side wall of the rear stopper 1152 exposed to the first through hole to ensure the stability of the connection.

[0101] The first elastic member 112 is connected to the second limiting platform and the rear stop member 1152 , and the connection method can be a contact connection such as abutment, or a connection such as snap connection or gluing.

[0102] The first elastic member 112 and the second elastic member 217 have the same structure, and their description is omitted here.

[0103] Furthermore, the first optical pin assembly 11 further includes a positioning member 114, which is disposed on the first stopper and protrudes from the front surface of the first stopper. The second stopper 213 of the second optical pin assembly 21 is provided with a positioning hole 214 that matches the positioning member 114. After the plug and the socket are mated, the positioning member 114 is plugged into the positioning hole 214, thereby radially positioning the plug optical pin 111 and the socket optical pin 211.

[0104] The positioning member 114 may be a pin or a positioning column.

[0105] Furthermore, there are multiple positioning members 114 and multiple positioning holes 214; after the plug and the socket are plugged in, the multiple positioning members 114 are plugged and connected with the multiple positioning holes 214 in a one-to-one correspondence to increase positioning accuracy.

[0106] Furthermore, a thread is provided on the inner circle of the front end of the plug housing 12 for connecting with the outer thread of the screw tail 13 to fix the front insulating plate 141 of the plug.

[0107] The inner circle of the front insulating plate 141 of the plug has a positioning groove 2322, which cooperates with the outer key of the first optical pin assembly 11 to play a role in radial positioning.

[0108] The plug further includes an electrical jack assembly 15 , which is disposed between the first housing 113 and the plug shell 12 . The electrical jack assembly 15 and the first optical pin assembly 11 are fixed in axial position by the steps between the front insulating plate 141 and the rear insulating plate 142 of the plug.

[0109] The front end outer circle of the plug housing 12 is provided with a receiving groove, and the receiving groove is used to place an O-ring to achieve the sealing effect between the plug housing 12 and the socket housing 22.

[0110] In some embodiments, the front end outer circle of the plug housing 12 is provided with a plurality of receiving grooves, for example, 2 or 3.

[0111] The rear end of the plug housing 12 has two symmetrical threaded holes for connecting with positioning screws, which serve to fix the radial position of the potting sleeve 16 .

[0112] The plug also includes a support sleeve 17, which is arranged between the first shell 113 and the plug shell 12. The support sleeve 17 serves to connect the rear insulating plate 142 of the plug with the glue sleeve 16. The glue sleeve 16 serves to support the glue when the connector is connected to the composite cable with an aramid load-bearing structure. Its outer circle has multiple axial grooves, which cooperate with the positioning screws.

[0113] The inner circle of the rear end of the plug housing 12 has a thread for connecting with the outer thread of the cable clamp.

[0114] In some embodiments, as shown in Figures 2 and 6, two positioning members 114 are provided, and the two positioning members 114 are distributed at both ends of the first stop member 115. Two positioning holes 214 are correspondingly provided. After the plug and the socket are plugged into each other, the two positioning members 114 are plugged into and connected with the two positioning holes 214 one by one.

[0115] Furthermore, the first optical pin assembly 11 also includes a first clamping ring 118, which is fixed to the inner groove of the first shell. The first clamping ring 118 can fix the positioning member 114, the plug optical pin 111, the first elastic member 112, the front stopper 1151 and the rear stopper 1152 on the first shell 113.

[0116] In some embodiments, the positioning member 114 can be a positioning pin, and the tail of the positioning pin has an external thread that cooperates with the internal thread of the rear stop member 1152 of the first stop member 115 to fix the front stop member 1151 of the first stop member 115, the retaining ring, and the rear stop member 1152 of the first stop member 115 into one.

[0117] In some embodiments, the outer circumference of the positioning member 114 has a groove, which can be tightened using a dedicated tool.

[0118] Furthermore, the plug also includes a plug shell 12 and a vulcanized tail sleeve 18, the first optical pin assembly 11 is arranged in the plug shell 12, and the vulcanized tail sleeve 18 is sleeved on the tail end of the plug shell 12; the outer surface of the plug shell 12 in contact with the vulcanized tail sleeve 18 is provided with a third annular groove, and the third annular groove extends around the central axis of the plug shell 12.

[0119] The third annular groove is provided to increase the vulcanization area between the plug housing 12 and the vulcanization tail sleeve 18 , thereby preventing the vulcanization tail sleeve 18 from falling off.

[0120] In some embodiments, a plurality of third annular grooves are provided, and the plurality of third annular grooves are arranged along the axial direction of the plug housing 12 , further increasing the connection stability between the plug housing 12 and the vulcanized tail boot 18 .

[0121] Furthermore, as shown in Figures 1 and 3, the plug also includes a screw sleeve 19, which is sleeved on the front end of the plug shell 12, and a gap is formed between the front end of the screw sleeve 19 and the front end of the plug shell 12, and the inner wall of the front end of the screw sleeve 19 is provided with an internal thread; the socket also includes a socket shell 22, and the outer wall of the tail end of the socket shell 22 is provided with an external thread, and the inner diameter of the tail end of the socket shell 22 matches the inner diameter of the front end of the plug shell 12; after the plug and the socket are plugged in, the tail end of the socket shell 22 is located in the gap, and the screw sleeve 19 is threadedly connected to the socket shell 22 to increase the connection stability of the plug and the socket.

[0122] The inner circle of the screw sleeve 19 has a thread, which is connected to the socket shell 22 and plays the role of locking the connector after plugging.

[0123] Furthermore, as shown in FIG3 , the middle section of the socket housing 22 is provided with a radial groove and an axial groove, both of which are used to place O-rings to achieve radial and end face sealing between the socket and the mounting panel.

[0124] In some embodiments, the plug also includes a first epoxy component, the first epoxy component includes a plurality of first electrical pins and a first epoxy mounting part, the plurality of first electrical pins are arranged on the first epoxy mounting part, and the plurality of first electrical pins and the first epoxy mounting part are injection molded as one piece; a first mounting hole is provided in the middle of the first epoxy mounting part, the first optical pin assembly 11 is provided in the first mounting hole, and the plurality of first electrical pins are arranged around the first mounting hole.

[0125] At the same time, as shown in FIG4, FIG7 and FIG8, the socket further includes a second epoxy component 23. Along the radial direction of the socket housing 22, the second optical pin component 21, the second epoxy component 23 and the socket housing 22 are sequentially arranged.

[0126] As shown in Figures 7 and 8, the second epoxy component 23 includes multiple second electrical pins 231 and a second epoxy mounting piece 232. The multiple second electrical pins 231 are arranged on the second epoxy mounting piece 232, and the multiple second electrical pins 231 and the second epoxy mounting piece 232 are integrally injection molded; a second mounting hole 2321 is provided in the middle of the second epoxy mounting piece 232, and the second optical pin assembly 21 is arranged in the second mounting hole 2321. The multiple second electrical pins 231 are arranged around the second optical pin assembly 21.

[0127] In the case where the plug and the socket are plugged into each other, the plurality of first electrical pins and the plurality of second electrical pins 231 are connected in a one-to-one correspondence.

[0128] Furthermore, seals are provided between the socket housing 22 and the second epoxy mounting piece 232 , and between the second shell 212 and the second epoxy mounting piece 232 , so as to achieve sealing among the socket housing 22 , the second epoxy mounting piece 232 , and the second shell 212 .

[0129] In some embodiments, the outer circumference of the second shell 212 is designed with multiple receiving grooves for placing sealing members.

[0130] The sealing element may be an O-ring known in the art.

[0131] For example, the outer circle of the second shell 212 is designed with two receiving grooves for placing O-rings to achieve the longitudinal sealing effect between the second shell 212 and the second epoxy component 23.

[0132] The second mounting hole 2321 is a stepped hole for mounting the second optical pin assembly 21 .

[0133] In some embodiments, a positioning groove 2322 is provided on the inner wall of the second epoxy mounting member 232 , and an external key is provided on the outer circle of the second shell 212 . The external key cooperates with the positioning groove 2322 to achieve positioning of the second optical pin assembly 21 in the second mounting hole 2321 .

[0134] The glue-filled sealing portion at the tail end of the first optical pin assembly 11 has the same structure as that of the second optical pin assembly 21 , as described above.

[0135] Furthermore, the second optical pin assembly 21 also includes a C-shaped sleeve 216, which is designed with two asymmetric stepped holes. The second stopper 213 includes a front stopper and a rear stopper, which are arranged in a front-to-back manner along the axial direction of the second shell 212. The front stopper of the second stopper 213 is designed with two through holes in the same position as the stepped holes of the C-shaped sleeve 216, and the rear stopper of the second stopper 213 is designed with two threaded holes in the same position as the stepped holes of the C-shaped sleeve. The C-shaped sleeve 216, the front stopper of the second stopper 213, and the rear stopper of the second stopper 213 are fixed together by fixing screws.

[0136] Furthermore, the outer circle of the C-shaped sleeve 216 is designed with two receiving grooves, which are used to place O-rings to achieve radial sealing between the C-shaped sleeve 216 and the second shell 212 and the socket shell 22.

[0137] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A photoelectric hybrid watertight connector, characterized in that: include: The plug includes a first optical ferrule assembly and a first optical cable. The first optical ferrule assembly includes a first housing and a plug optical ferrule. A first stopper is provided within the first housing, a first end of the first stopper extending toward a front end of the first housing, and a first filling cavity is formed between a second end of the first stopper and a rear end of the first housing. The plug optical ferrule is disposed within the first stopper. One end of the first optical cable is inserted into the first filling cavity and connected to the plug optical ferrule. The first filling cavity is filled with a first adhesive group to achieve a seal between the first optical cable and the first housing. The receptacle includes a second optical ferrule assembly and a second optical cable. The second optical ferrule assembly includes a second housing and a receptacle optical ferrule. A second stopper is provided within the second housing. A first end of the second stopper extends toward a front end of the second housing. A second filling cavity is formed between a second end of the second stopper and a rear end of the second housing. The receptacle optical ferrule is disposed in the second stopper. One end of the second optical cable is passed through the second filling cavity and connected to the receptacle optical ferrule. The second filling cavity is filled with a second adhesive group to achieve a seal between the second optical cable and the second housing. After the plug and the socket are plugged into each other, the first optical pin assembly and the second optical pin assembly are plugged and connected; In which, the first glue group includes sealant and structural glue, the sealant and the structural glue are distributed along the axial direction of the plug, and the structural glue is arranged on the side of the sealant away from the first stop member; and / or, the second glue group includes sealant and structural glue, the sealant and the structural glue are distributed along the axial direction of the socket, and the structural glue is arranged on the side of the sealant away from the second stop member.

2. The optoelectronic hybrid watertight connector according to claim 1, characterized in that: The first optical pin assembly further includes a first potting sealant sleeve, which is disposed in the first potting cavity. At least a portion of the outer wall of the first potting sealant sleeve is connected to the inner wall of the first housing. The inner wall of the first potting sealant sleeve is provided with a plurality of first annular grooves distributed along the axial direction, each of which extends along the circumference of the first housing. The first optical cable passes through the first potting sealant sleeve and is connected to the optical pin of the plug. And / or, the second optical pin assembly further includes a second glue potting sealing sleeve, which is disposed in the second potting cavity, the outer wall of the second glue potting sealing sleeve being connected to the inner wall of the second shell, the inner wall of the second glue potting sealing sleeve being provided with a plurality of second annular grooves distributed along the axial direction, each of the second annular grooves extending along the circumference of the second shell, and the second optical cable passing through the second glue potting sealing sleeve and connected to the socket optical pin.

3. The optoelectronic hybrid watertight connector according to claim 1, characterized in that: The first stopper is provided with a first wire hole, the plug optical pin is passed through the first wire hole, and the first optical cable extends into the first wire hole and is connected to the plug optical pin; The second stopper is provided with a second wire-passing hole, the optical pin of the socket is passed through the second wire-passing hole, and the second optical cable extends into the second wire-passing hole and is connected to the optical pin of the socket; The first optical pin assembly further includes a first elastic member, and the second optical pin assembly further includes a second elastic member; The first elastic member is disposed in the first wire-passing hole, and one end of the first elastic member is connected to the optical pin of the plug, and the other end is connected to the inner wall of the first wire-passing hole; The second elastic member is arranged in the second wire-passing hole, and one end of the second elastic member is connected to the optical pin of the socket, and the other end is connected to the inner wall of the second wire-passing hole.

4. The optoelectronic hybrid watertight connector according to claim 3, characterized in that: The first stopper includes a front stopper and a rear stopper, and the front stopper and the rear stopper are distributed frontally and rearwardly along the axial direction of the first housing; The front stopper is provided with a first through hole, and the rear stopper is provided with a second through hole. The first through hole and the second through hole are coaxially arranged to form a wire hole, and the optical pin of the plug is inserted into the wire hole; The inner diameter of the second through hole is smaller than the inner diameter of the first through hole; the other end of the first elastic member is connected to the side wall of the rear stop member exposed to the first through hole.

5. The optoelectronic hybrid watertight connector according to claim 4, characterized in that: The first optical pin assembly further includes a positioning member, the positioning member is disposed on the first stopper, and the positioning member protrudes from a front surface of the first stopper; The second stopper is provided with a positioning hole adapted to the positioning member; After the plug and the socket are plugged into each other, the positioning piece is plugged into and connected with the positioning hole.

6. The optoelectronic hybrid watertight connector according to claim 5, characterized in that: There are multiple positioning members and multiple positioning holes; After the plug and the socket are plugged into each other, the plurality of positioning members are plugged and connected with the plurality of positioning holes in a one-to-one correspondence.

7. The optoelectronic hybrid watertight connector according to claim 1, characterized in that: The plug further comprises a plug shell and a vulcanized tail sleeve, wherein the first optical pin assembly is arranged in the plug shell, and the vulcanized tail sleeve is sleeved on the tail end of the plug shell; A third annular groove is provided on an outer surface of the plug housing that contacts the vulcanized tail boot. The third annular groove extends around the central axis of the plug housing.

8. The optoelectronic hybrid watertight connector according to claim 7, characterized in that: The plug further comprises a screw sleeve, which is sleeved on the front end of the plug shell, and a gap is formed between the front end of the screw sleeve and the front end of the plug shell, and the inner wall of the front end of the screw sleeve is provided with an internal thread; The socket further comprises a socket shell, the outer wall of the rear end of the socket shell is provided with an external thread, and the inner diameter of the front end of the socket shell matches the inner diameter of the front end of the plug shell; After the plug and the socket are plugged into each other, the tail end of the socket shell is located in the gap, and the screw sleeve is threadedly connected to the socket shell.

9. The optoelectronic hybrid watertight connector according to claim 1, characterized in that: The plug further includes a first epoxy assembly, the first epoxy assembly including a plurality of first electrical pins and a first epoxy mounting piece, the plurality of first electrical pins being disposed on the first epoxy mounting piece and integrally injection-molded; a first mounting hole is defined in the middle of the first epoxy mounting piece, the first optical pin assembly is disposed in the first mounting hole, and the plurality of first electrical pins are disposed around the first mounting hole; The socket further includes a second epoxy component, the second epoxy component including a plurality of second electrical pins and a second epoxy mounting piece, the plurality of second electrical pins being disposed on the second epoxy mounting piece and integrally injection molded; a second mounting hole is defined in the middle of the second epoxy mounting piece, the second optical pin assembly is disposed in the second mounting hole, and the plurality of second electrical pins are disposed around the second mounting hole; When the plug and the socket are plugged into each other, the plurality of first electrical pins and the plurality of second electrical pins are connected in a one-to-one correspondence.

10. The optoelectronic hybrid watertight connector according to claim 9, characterized in that: The socket further includes a socket shell, and along the radial direction of the socket shell, the second optical pin assembly, the second epoxy assembly and the socket shell are arranged in sequence from the inside to the outside; A sealing member is provided between the socket shell and the second epoxy mounting member, and between the second shell and the second epoxy mounting member.

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