Optical cable connector and connecting box

Abstract

NOT VISIBLE DUE TO STATUS OF PATENT

Description

Optical cable connector and connection box

[0001] This application claims priority to Chinese patent application No. 202410088795.X, filed with the Patent Office of China on January 22, 2024, entitled “An Fiber Optic Cable Connector and Connection Box,” the entire contents of which are incorporated herein by reference. This application claims priority to Chinese patent application No. 202420149247.9, filed with the Patent Office of China on January 22, 2024, entitled “An Fiber Optic Cable Connector and Connection Box,” the entire contents of which are incorporated herein by reference. Technical Field

[0002] The present application relates to the field of communication technology, and in particular to an optical cable connector and a connection box. Background Art

[0003] An optical distribution network (ODN) is a network consisting of all passive optical fibers and passive devices (such as optical splitters) between the optical line terminal (OLT) and the optical network unit (ONU). The ODN connects an OLT and multiple ONUs, providing bidirectional transmission of optical signals.

[0004] In optical distribution network projects, connection boxes (such as optical cross-connect boxes, optical distribution boxes, and optical fiber splitter boxes) are often used to connect optical fibers to achieve network transmission. Specifically, an adapter is usually provided on the connection box, and the two ends of the adapter are respectively connected to two optical cable connectors. By plugging the two optical cable connectors into the two ends of the adapter, the two sections of optical fiber can be connected. Currently, optical cable connectors generally include a housing, a ferrule assembly located within the housing, and an optical cable. The housing includes a first end and a second end opposite each other, and the ferrule assembly is located at the first end of the housing and connected to the housing. A portion of the optical cable extends into the housing from the second end and connects to the ferrule assembly at the first end of the housing.

[0005] However, the optical cable connector will be pulled during the process of matching with the connection box and on-site arrangement. In the above-mentioned optical cable connector, when the optical cable is subjected to external tension, the external force is transmitted to the optical cable in the shell, which can easily tear the optical fiber in the optical cable, thereby damaging the optical cable, affecting the normal operation of the optical cable connector, and reducing the reliability and stability of the optical fiber cable connector. Summary of the Invention

[0006] The embodiments of the present application provide an optical cable connector and a connection box, which can effectively reduce or avoid the breakage of optical fibers in the optical cable connector, thereby effectively improving the reliability and stability of the operation of the optical cable connector.

[0007] In a first aspect, an embodiment of the present application provides an optical cable connector, comprising: a main housing, a ferrule assembly, a connector, and an optical cable. The main housing comprises a first end and a second end opposite each other, and the main housing comprises a first accommodating cavity extending through the first and second ends. The ferrule assembly is located within the first accommodating cavity. The connector is located within the first accommodating cavity and disposed proximate to the second end, and the connector is coupled to the main housing. The optical cable is partially disposed within and connected to the connector, and one end of the optical cable located within the main housing is connected to the ferrule assembly.

[0008] The embodiment of the present application couples the connector and the main housing with each other, so that when the optical cable is subjected to external tension, the external force on the optical cable can be transmitted to the main housing through the connector to avoid being transmitted to the end of the optical cable connected to the ferrule assembly. This can effectively reduce or avoid the tension generated between the end of the optical cable located at the second end of the main housing and the end of the optical cable connected to the ferrule assembly, prevent the optical fiber of the optical cable located in the main housing from being broken due to tension, and avoid the breakage of the optical fiber from affecting the normal operation of the optical cable connector, thereby effectively improving the reliability and stability of the operation of the optical cable connector.

[0009] In one possible implementation, the outer sheath of the optical cable may be bonded to the connector, thereby transferring the external force on the optical cable to the main housing through the connector, thereby avoiding affecting the optical fibers in the optical cable.

[0010] In one possible implementation, the connector has a first limiting portion, and the main housing has a second limiting portion, the first limiting portion and the second limiting portion abutting against each other, and the connector and the main housing form a coupling relationship through the abutment between the first limiting portion and the second limiting portion. This can effectively reduce or prevent external forces from being transmitted to the portion of the optical cable located at the first end of the main housing, effectively reducing the tension of the optical cable within the main housing, thereby effectively preventing the optical cable from breaking and affecting the normal operation of the optical cable connector, and effectively improving the stability and reliability of the optical cable connector.

[0011] In one possible implementation, the abutting surface of the first limiting portion faces the second end of the main housing, and the abutting surface of the second limiting portion faces the first end of the main housing. This allows external forces on the optical cable to be transferred to the main housing, thereby preventing the portion of the optical cable at the first end of the main housing from being pulled and breaking.

[0012] In one possible implementation, one of the connector and the main housing has a first limiting groove, and the other of the connector and the main housing has a first limiting block that cooperates with the first limiting groove. The first limiting block cooperates with the first limiting groove to limit relative rotation between the main housing and the connector. This effectively reduces or prevents rotation of the connector during assembly with the main housing, reduces or prevents rotation of the connector relative to the main housing that could affect proper assembly between the connector and the main housing, and helps improve the accuracy of the fit between the connector and the main housing.

[0013] In one possible implementation, the base is further included. The base is located within the first accommodating cavity of the main housing. One end of the base is connected to the connector, and the other end of the base is connected to the ferrule assembly and the main housing. The optical cable passes through the base and is connected to the ferrule assembly. The base can serve as a connection between the connector and the ferrule assembly, allowing the optical cable, connector, and ferrule assembly to be assembled into a single structure for easy assembly with the main housing, facilitating assembly and disassembly of the optical cable connector.

[0014] In one possible implementation, one of the base and the connector has a connecting post, and the other has a connecting hole that mates with the connecting post. The connecting post is inserted into the connecting hole, and the connector and the base are connected through the mating of the connecting post and the connecting hole. This can reduce the possibility of separation between the connector and the base, help improve the reliability and stability of the connection between the connector and the base, and enhance the stability of the internal structure of the optical cable connector.

[0015] In one possible implementation, a window is provided on the base so that staff can inspect the arrangement of the internal optical cables through the window, thereby reducing or avoiding damage to the optical cables inside the base and preventing damage to the optical cables from affecting the normal operation of the optical cable connector.

[0016] In one possible implementation, the inner wall of the main housing has a third stopper, and the outer periphery of the base has a fourth stopper that cooperates with the third stopper, with the fourth stopper abutting against the third stopper. The cooperation between the third and fourth stoppers can provide axial positioning for the base within the main housing, reducing or preventing axial displacement of the base, and thereby improving the stability and reliability of the assembly between the base and the main housing.

[0017] In one possible implementation, the device further includes a sleeve member, one end of which is sleeved onto the second end of the main housing and connected to the main housing, and the other end of which is sleeved onto the optical cable and connected to the optical cable. In this way, when the portion of the optical cable outside the main housing is pulled by an external force, the optical cable can transmit the force to the main housing through the sleeve member, thereby reducing or preventing the external force from being transmitted to the portion of the optical cable at the first end of the main housing, thereby effectively reducing or preventing the portion of the optical cable at the first end of the main housing from being subjected to force and causing the optical cable to break.

[0018] In one possible implementation, the ferrule assembly includes a housing assembly and a ferrule structure. The housing assembly has a second accommodating cavity, and the ferrule structure is at least partially disposed within the second accommodating cavity. The retracted ferrule structure tends to extend out of the housing assembly, which allows for a more secure abutment between the ferrule structure and the ferrule structure at the other end of the adapter, effectively improving the tightness of the fit between the two ferrule structures and enhancing the transmission efficiency of optical signals between the two ferrule structures.

[0019] In one possible implementation, the ferrule assembly further includes an elastic member, which is located in the second accommodating cavity, one end of the elastic member abuts against the inner wall of the second accommodating cavity, and the other end of the elastic member is connected to the ferrule structure. The elastic member can provide an elastic buffer between the ferrule structure and the shell assembly, which can reduce or avoid the rigid impact between the ferrule structure and the shell assembly, prevent the rigid contact between the ferrule structure and the shell assembly from affecting the tightness of the connection between the ferrule structure and the shell assembly, and help improve the tightness of the connection between the ferrule structure and the shell assembly. Moreover, the elastic member can also enable the two ferrule structures at both ends of the adapter to fit tightly against each other, which can effectively improve the stability of the docking between the two ferrule structures, thereby effectively improving the transmission efficiency of the optical signal.

[0020] In one possible implementation, the ferrule structure includes a plurality of ferrules, each of which has a through hole, and the optical cable includes a plurality of optical fibers, each of which is respectively inserted into the through holes of the ferrules, and at least two ferrules are connected to one elastic member. This can effectively reduce the number of elastic members in the optical cable connector, reduce the space occupied by the elastic members in the optical cable connector, and help improve the miniaturization design of the optical cable connector. Moreover, compared to providing one elastic member on one ferrule, by connecting at least two ferrules to one elastic member, interference between two adjacent elastic members can be reduced, which can facilitate the arrangement of the elastic member in the housing assembly. In addition, by connecting at least two ferrules to one elastic member, the ferrules arranged on the same elastic member can also have a better synchronization rate during the process of expansion and contraction relative to the housing assembly, which can improve the uniformity of the expansion and contraction of each ferrule, thereby effectively improving the stability of the optical cable connector and the adapter.

[0021] In a possible implementation, the elastic member is a spring, and the spring is sleeved outside the insert.

[0022] In one possible implementation, the plurality of ferrules are arranged in an array in the form of M rows and N columns, wherein M ≥ 2 and N ≥ 2;

[0023] The number of the elastic members is N, and each elastic member has M ferrules;

[0024] Alternatively, the number of the elastic members is M, and each elastic member has N inserts.

[0025] In one possible implementation, the housing assembly includes a front shell and a rear shell, the front shell having a first cavity, the rear shell at least partially extending into the first cavity and connected to the front shell. Each ferrule includes a connecting portion and an inserting portion, the connecting portion being located within the first cavity, the inserting portion being connected to the connecting portion, and the inserting portion extending out of the front end of the front shell. The elastic member is sleeved over the connecting portion, with one end of the elastic member connected to the ferrule and the other end connected to the rear shell.

[0026] In one possible implementation, the front shell includes M sub-front shells, and the M sub-front shells are connected in sequence from the first row to the Mth row. The sub-front shell has a first cavity, and the first cavity has an elastic part, and N cores are passed through the elastic parts.

[0027] Alternatively, the front shell includes N sub-front shells, which are connected in sequence from the first column to the Nth column. The sub-front shells have one first cavity, each of which has one elastic member, and each of the elastic members is provided with M cores.

[0028] By making the front housing comprise multiple independent yet connected sub-front housings, each sub-front housing can be manufactured independently and then assembled and connected to the rear housing. This improves the independence of the configuration of each sub-front housing. Furthermore, by varying the number of sub-front housings, the ferrules within the front housing can be arranged in a variety of different ways, effectively increasing the flexibility of ferrule placement.

[0029] In one possible implementation, the front shell is an integrated structure, and a partition wall is provided within the first cavity of the front shell. The partition wall divides the first cavity into M sub-cavities, and the M sub-cavities are arranged sequentially from the first row to the Mth row. The sub-cavity contains one elastic member, and N ferrules are passed through the elastic member. Alternatively, the partition wall divides the first cavity into N sub-cavities, and the N sub-cavities are arranged sequentially from the first column to the Nth column. The sub-cavity contains one elastic member, and each elastic member has M ferrules passed through it.

[0030] By making the front shell an integrated structure, there is only the thickness of a partition wall between two adjacent sub-cavities, which can effectively reduce the isolation thickness between the two adjacent sub-cavities, effectively reduce the overall size of the front shell, and improve the miniaturization design of the front shell, thereby effectively reducing the overall size of the optical cable connector and realizing the miniaturization design of the optical cable connector.

[0031] In one possible implementation, the number of the rear shells is the same as the number of the M sub-front shells of the front shell, or the number of the rear shells is the same as the number of the N sub-front shells of the front shell;

[0032] Alternatively, the number of the rear shells is the same as the number of the M sub-cavities of the front shell, or the number of the rear shells is the same as the number of the N sub-cavities of the front shell.

[0033] In one possible implementation, the front housing has a plurality of openings on a side facing the first end of the main housing through which the ferrules pass, with each ferrule passing through one of the openings. A connecting rib is provided between two adjacent openings. The connecting rib can separate adjacent ferrules to reduce or avoid interference between the two adjacent ferrules, thereby improving the overall structural stability of the optical cable connector.

[0034] In one possible implementation, the connecting portion has a fifth stopper at one end near the plug-in portion, and the front housing has a sixth stopper inside that cooperates with the fifth stopper. One end of the fifth stopper abuts the sixth stopper, and the other end of the fifth stopper abuts the elastic member. The sixth stopper and the fifth stopper can form a blocking effect, preventing the ferrule from dislodging from the front end of the front housing, thereby improving the stability and reliability of the ferrule within the front housing.

[0035] In one possible implementation, the front shell has a first slot, and the rear shell has a first engaging portion that engages with the first slot. The first engaging portion engages within the slot, and the front shell and the rear shell are connected via the engagement of the first engaging portion and the first slot. This effectively prevents separation between the front shell and the rear shell, thereby improving the reliability and firmness of the connection between the two shells.

[0036] In one possible implementation, the rear shell has a second snap-fitting portion at one end away from the front shell, and the base has a second slot that mates with the second snap-fitting portion. The second snap-fitting portion is secured within the second slot, and the base and rear shell are connected via the second snap-fitting portion and the second slot. This improves the secureness and reliability of the connection between the front shell, rear shell, and base, effectively preventing separation between the base, rear shell, and front shell, and contributing to the overall structural stability of the optical cable connector's internal components.

[0037] In one possible implementation, the rear shell has a second cavity connected to the first cavity, the base has a third cavity connected to the second cavity, and the optical fibers in the optical cable pass through the third cavity and the second cavity in sequence and are respectively arranged in the through holes of the ferrules.

[0038] In a possible implementation, the optical cable connector further comprises a locking cap, which is sleeved on the main housing and rotatably engaged with the main housing. The locking cap can engage with a structure on the adapter to allow the optical cable connector to be connected to the adapter.

[0039] In one possible implementation, a seal is further included, located between the main housing and the locking cap, for providing a seal between the main housing and the locking cap. This effectively reduces or prevents external water stains, dirt, etc. from entering the interior of the main housing through the gap between the locking cap and the main housing, thereby improving the cleanliness of the interior of the main housing and preventing water stains, dirt, etc. from entering the interior of the main housing and affecting the mating stability between the optical cable connector and the adapter, thereby improving the stability of the optical cable connector in transmitting optical signals.

[0040] In one possible implementation, the optical fiber further includes a tail sleeve, which is mounted on the main housing and at least partially covers the sleeve. The tail sleeve provides elastic protection for the optical cable. When the optical cable is bent, the tail sleeve can increase the bending radius of the optical cable to prevent the optical cable from breaking due to a small bending radius, thereby preventing the optical cable from breaking and affecting signal transmission between the optical fiber cable connectors.

[0041] In one possible implementation, the main housing has a third latching slot, and the tail sleeve has a third engaging portion that engages with the third latching slot. The third engaging portion is retained within the third latching slot, and the tail sleeve is connected to the main housing through the engagement of the third engaging portion and the third latching slot. The engagement between the third engaging portion and the third latching slot can reduce or prevent separation between the tail sleeve and the main housing, thereby improving the reliability and stability of the connection between the main housing and the tail sleeve, and enhancing the overall structural stability of the optical cable connector.

[0042] In one possible implementation, the sleeve is a heat shrink sleeve.

[0043] In one possible implementation, the ferrule is a ceramic ferrule. Ceramics have high strength and rigidity, which can improve the accuracy of the ferrule, allowing the ferrules at both ends to be better aligned during the docking process of the optical cable connector, helping to improve the accuracy of the optical fiber alignment in each ferrule, and can effectively reduce the transmission loss between optical fibers, thereby effectively improving the transmission efficiency of optical signals between optical cable connectors. Moreover, the surface of the ceramic ferrule is smooth and easy to clean, which can effectively reduce dust on the surface of the ferrule and prevent excessive dust on the surface of the ferrule from affecting the transmission of optical signals, which is conducive to further reducing losses and improving the efficiency of optical signal transmission. In addition, the ceramic ferrule has high rigidity and strength, which can effectively reduce or avoid damage or breakage of the ferrule, helping to improve the reliability and stability of optical signal transmission between optical cable connectors.

[0044] In one possible implementation, the optical cable includes a cable core and an outer sheath, wherein the outer sheath is sleeved over the cable core; the connector is sleeved over the outer sheath and bonded to the outer sheath. This can effectively reduce or prevent separation of the optical cable and the connector, and effectively improve the firmness and reliability of the connection between the optical cable and the connector.

[0045] A second aspect of the present application provides a connection box, comprising a housing and an adapter, the adapter being located on the housing and configured to mate with any of the aforementioned optical cable connectors. By mating the adapter in the connection box with the aforementioned optical fiber cable connector, the two optical fiber cable connectors inside and outside the connection box can be docked via the adapter to achieve optical signal transmission. The optical cable connector has high reliability and stability, effectively improving the stability and reliability of optical signal transmission within the connection box.

[0046] In one possible implementation, the adapter contains the same number of positioning sleeves as the ferrules in the optical cable connector, and the positioning sleeves are configured to correspond to the arrangement of the ferrules. Each positioning sleeve has a positioning through-hole, with the ferrules inserted at both ends. This effectively improves the coaxiality of the ferrule connection and the accuracy of the ferrule docking, thereby effectively improving the efficiency of signal transmission between optical fibers.

[0047] A third aspect of the present application provides an optical cable connector, comprising:

[0048] A main housing, the main housing comprising a first end and a second end opposite to each other, and a first accommodating cavity extending through the first end and the second end;

[0049] a ferrule assembly, the ferrule assembly being located in the first accommodating cavity;

[0050] an optical cable, wherein a portion of the optical cable is passed through the main housing, and one end of the optical cable located within the main housing is connected to the ferrule assembly;

[0051] A locking cap, the locking cap being sleeved on the main housing and rotatably engaged with the main housing;

[0052] One of the main shell and the locking cap has a third limiting block, the other of the main shell and the locking cap has a seventh limiting portion, the seventh limiting portion is provided with a first notch, and the first notch is used for the third limiting block to pass through.

[0053] Thus, when the locking cap and the main housing need to be assembled or disassembled, the third stopper can be aligned with the first notch to facilitate installation or disassembly of the locking cap and the main housing. By rotating the locking cap to offset the third stopper from the first notch, the seventh stopper can block the third stopper, preventing the locking cap from falling out of the main housing, thereby effectively improving the overall structural stability of the optical cable connector.

[0054] In a possible implementation, the third limiting block is located on the outside of the main shell, and the seventh limiting portion is located on the inner wall of the locking cap and is arranged along the circumference of the inner wall.

[0055] In one possible implementation, the locking cap is located at the first end of the main housing, and the seventh limiting portion is located on the side of the third limiting block facing the first end. Thus, during use of the optical cable connector, the third limiting block can limit and resist the seventh limiting portion, effectively preventing the locking cap from moving relative to the main housing and from falling out of the main housing, thereby effectively improving the structural stability of the optical cable connector.

[0056] In one possible implementation, an open slot is provided at the first end of the main housing, extending axially from the end of the main housing. The open slot can cooperate with a positioning key on the adapter to provide circumferential restraint for the main housing and the adapter, thereby preventing relative rotation between the main housing and the adapter and preventing the locking cap from rotating relative to the adapter during the locking process, thereby effectively improving the locking reliability of the locking cap.

[0057] In one possible implementation, a flange is provided on the outer circumference of the main housing, the opening groove extends to a position proximate to the flange, and the inner wall of the locking cap has a stop, with the flange abutting against the stop. The cooperation between the stop and the flange provides axial positioning for the assembly of the main housing and the locking cap, reducing or preventing misalignment between the locking cap and the main housing during assembly, thereby effectively improving the assembly accuracy between the main housing and the locking cap.

[0058] In one possible implementation, one of the main shell and the locking cap has two fourth limit blocks, and the two fourth limit blocks are arranged at circumferential intervals; the other of the main shell and the locking cap has a second limit column, the second limit column is located between the two fourth limit blocks, and the second limit column can rotate within the angle range limited by the two fourth limit blocks.

[0059] In this way, when the optical cable connector is connected to the adapter, the locking cap is placed on the adapter, and the locking block on the locking cap enters the locking groove on the adapter. No matter how the locking cap is rotated relative to the main housing, the locking block can enter the locking groove through the opening of the locking groove. This can effectively reduce or avoid the situation where the locking cap is rotated too much and the locking block and the locking groove cannot mate, which helps to improve the accuracy of the mating of the locking block and the locking groove.

[0060] In one possible implementation, the second limiting column is located on the outer wall of the flange; the two fourth limiting blocks are located on the inner wall of the locking cap, and the two fourth limiting blocks are spaced apart along the circumference of the locking cap.

[0061] The second limiting column on the flange can rotate within the angle range defined by the two fourth limiting blocks to limit the rotation range of the locking cap, so that the locking block on the locking cap can smoothly enter the locking groove on the adapter.

[0062] In one possible implementation, a fifth limit block is provided on the inner wall of the locking cap, the fifth limit block is arranged along the circumference of the locking cap, and there is a gap between the head end and the end end of the fifth limit block; a second limit column is provided on the outer wall of the flange, the second limit column is located in the gap between the head end and the end end of the fifth limit block, and the second limit column can rotate within the angle range defined by the head end and the end end.

[0063] The head end and the tail end of the fifth limiting block can limit the second limiting column so that the locking cap can rotate within a specified range, thereby allowing the locking block on the locking cap to smoothly enter the locking groove on the adapter.

[0064] In one possible implementation, the flange has a second notch, and the locking cap has a third limiting post. The third limiting post is located within the second notch and is rotatable within an angular range defined by the notch. This allows the locking cap to rotate within a specified range relative to the main housing, allowing the locking block on the locking cap to smoothly enter the locking groove on the adapter.

[0065] In one possible implementation, the main housing is an integrated structure, which can improve the firmness and reliability of the main housing structure and help improve the overall structural stability and reliability of the optical cable connector.

[0066] In one possible implementation, a crimping ring is further included, which is sleeved over the optical cable and connected to the optical cable; the crimping ring is also sleeved over the second end of the main housing and is used to press the optical cable against the main housing. This can improve the firmness and reliability of the connection between the optical cable and the main housing, and help enhance the overall structural stability of the optical cable connector.

[0067] In one possible implementation, the optical cable includes an optical cable body and a reinforcement layer sleeved over the optical cable body, with the reinforcement layer partially compressed between the crimping ring and the main housing. This allows the optical cable to be connected to the crimping ring and the main housing via the reinforcement layer, effectively reducing or preventing separation between the optical cable and the main housing, thereby effectively improving the firmness and reliability of the connection between the optical cable and the main housing.

[0068] In one possible implementation, the base has a shoulder portion on its outer periphery, and the main housing has an elastic engaging portion, which abuts against an end surface of the shoulder portion. The engagement between the shoulder portion and the elastic engaging portion provides axial position limiting, reducing or preventing axial movement between the main housing and the base, and thereby improving the reliability and stability of the axial connection between the main housing and the base.

[0069] In one possible implementation, the front end of the ferrule assembly protrudes from the first end of the main housing, which facilitates cleaning of the end face of the ferrule assembly. The first end of the main housing protrudes from the front end of the locking cap, which facilitates observation of the fit between the main housing and the adapter, thereby improving the accuracy of the fit between the main housing and the adapter.

[0070] A fourth aspect of the present application provides a connection box, comprising a shell and an adapter, wherein the adapter is located on the shell, and the adapter is used to cooperate with any of the above-mentioned connectors. BRIEF DESCRIPTION OF THE DRAWINGS

[0071] FIG1 is a schematic structural diagram of an optical cable connector provided in an embodiment of the present application;

[0072] FIG2 is an exploded schematic diagram of an optical cable connector provided in an embodiment of the present application;

[0073] FIG3 is a cross-sectional view of an optical cable connector provided in an embodiment of the present application in a cross-sectional view;

[0074] FIG4 is a schematic structural diagram of a connector provided in an embodiment of the present application;

[0075] FIG5 is a cross-sectional view of a main housing provided in an embodiment of the present application;

[0076] FIG6 is a cross-sectional view of a main housing and a base provided in an embodiment of the present application in a cross-sectional view;

[0077] FIG7 is a cross-sectional view of a main housing and a base provided in an embodiment of the present application in another cross-sectional view;

[0078] FIG7A is an enlarged view of area A in FIG6 ;

[0079] FIG8 is a schematic structural diagram of a base provided in an embodiment of the present application;

[0080] FIG8A is a schematic structural diagram of another base provided in an embodiment of the present application;

[0081] FIG8B is a schematic structural diagram of another main housing provided in an embodiment of the present application;

[0082] FIG9 is a schematic structural diagram of a ferrule assembly provided in an embodiment of the present application;

[0083] FIG10 is a schematic structural diagram of an 8-core optical cable connector provided in an embodiment of the present application from one viewing angle;

[0084] FIG11 is a schematic structural diagram of an 8-core optical cable connector provided in an embodiment of the present application from another perspective;

[0085] FIG12 is a cross-sectional view of a ferrule assembly provided in an embodiment of the present application;

[0086] FIG13 is a cross-sectional view of a housing assembly and a base provided in an embodiment of the present application;

[0087] FIG14 is a schematic structural diagram of a front housing provided in an embodiment of the present application;

[0088] FIG15 is a schematic structural diagram of a rear housing provided in an embodiment of the present application;

[0089] FIG16 is a schematic structural diagram of another front housing provided in an embodiment of the present application;

[0090] FIG17 is a cross-sectional view of an optical cable connector provided in an embodiment of the present application in another cross-sectional view;

[0091] FIG18 is a schematic structural diagram of a main housing provided in an embodiment of the present application;

[0092] FIG19 is a cross-sectional view of a locking cap provided in an embodiment of the present application;

[0093] FIG19A is a schematic structural diagram of a main housing provided by an embodiment of the present application from another perspective;

[0094] FIG19B is a schematic structural diagram of a locking cap provided in an embodiment of the present application;

[0095] FIG19C is a schematic diagram of the structure of the main housing and the locking cap in cooperation with each other according to an embodiment of the present application;

[0096] FIG19D is a schematic structural diagram of another locking cap provided in an embodiment of the present application;

[0097] FIG19E is an exploded view of another optical cable connector provided in an embodiment of the present application;

[0098] FIG20 is a schematic diagram of the structure of a dust cap and an optical cable connector provided in an embodiment of the present application;

[0099] FIG21 is an exploded schematic diagram of a dust cap mated with an optical cable connector according to an embodiment of the present application;

[0100] FIG22 is a schematic structural diagram of a connection box provided in an embodiment of the present application;

[0101] FIG23 is a schematic structural diagram of an adapter provided in an embodiment of the present application at a viewing angle;

[0102] FIG24 is a schematic structural diagram of an adapter provided in an embodiment of the present application from another perspective;

[0103] FIG25 is a cross-sectional view of an adapter provided in an embodiment of the present application;

[0104] FIG26 is a schematic diagram of an application link of an optical cable connector provided in an embodiment of the present application;

[0105] FIG27 is a schematic diagram of a link inside a first master connection box provided in an embodiment of the present application;

[0106] FIG28 is a schematic diagram of a link inside a first extension connection box provided in an embodiment of the present application;

[0107] FIG29 is a schematic diagram of a link inside a fourth master connection box provided in an embodiment of the present application.

[0108] DESCRIPTION OF NUMERALS: 100 - connector; 110 - main housing; 111 - first end; 112 - second end; 113 - first accommodating chamber; 114 - second limiting portion; 115 - first limiting block; 116 - third limiting portion; 1161 - fourth latching slot; 117 - third latching slot; 118 - second limiting block; 119 - third limiting block; 1101 - flange; 1102 - second limiting column; 1103 - elastic clamping portion; 120 - ferrule assembly; 121 - housing assembly; 1211 - second accommodating chamber; 1212 - front housing; 12121 - first cavity; 121211 - partition wall; 121212 - sub-cavity; 12122 - sub-front housing; 12123 - opening; 12124 - connecting rib; 12125 - Sixth limiting portion; 12126 - First locking slot; 1213 - Back shell; 12131 - First locking portion; 12132 - Second locking portion; 12133 - Second cavity; 12134 - Sub-back shell; 122 - Ferrule structure; 1221 - Ferrule; 12211 - Through hole; 12212 - Connecting portion; 12213 - Connecting portion; 12214 - Fifth limiting portion; 123 - Elastic member; 130 - Connecting member; 131 - First limiting portion; 132 - First limiting slot; 133 - Connecting hole; 140 - Optical cable;150 - base; 151 - connecting column; 152 - window; 153 - fourth limiting portion; 154 - second slot; 155 - third cavity; 156 - second limiting slot; 157 - shoulder; 160 - sleeve; 170 - locking cap; 171 - seventh limiting portion; 172 - first notch; 173 - seal; 174 - first limiting column; 175 - limiting platform; 176 - fourth limiting block; 177 - fifth limiting block; 1771 - spacer; 180 - tail sleeve; 181 - third clamping portion; 190 - dust cap; 191 - dust cover; 101 - crimping ring; 200 - connection box; 210 - housing; 220 - adapter; 221 - positioning sleeve; 222 - first connecting portion; 2221 - third end; 2222 - fourth end; 2223 - first mounting portion; 223 - second connecting portion; 2231 - second mounting portion; 230 - nut; 310 - first main connection box; 311 - first input end; 312 - first output end; 313 - second output end; 314 - third output end; 315 - fourth output end; 320 - second main connection box; 330 - third main connection box; 340 - fourth main connection box; 341 - third input end; 342 - sixth output end;343 - seventh output terminal; 344 - eighth output terminal; 410 - first extension connection box; 411 - second input terminal; 412 - fifth output terminal; 420 - second extension connection box. DETAILED DESCRIPTION

[0109] The terms used in the implementation section of this application are only used to explain the specific embodiments of this application and are not intended to limit this application.

[0110] In optical distribution network projects, optical cross-connect boxes, optical distribution boxes, and optical splitter boxes typically use adapters on these devices to mate with optical cable connectors on optical cables to achieve docking between optical fibers and the connection box. In related technologies, optical cable connectors typically include a housing, a ferrule assembly, and an optical cable located within the housing. The housing has opposing first and second ends, with the ferrule assembly located at one end and connected to the housing. A portion of the optical cable extends from the second end into the main housing and connects to the ferrule assembly at the first end of the main housing.

[0111] However, the optical cable connector will be pulled during the process of matching with the connection box and on-site arrangement. In the above-mentioned optical cable connector, when the optical cable is subjected to external tension, the external force is transmitted to the optical cable in the shell, which can easily tear the optical fiber in the optical cable, thereby damaging the optical cable, affecting the normal operation of the optical cable connector, and reducing the reliability and stability of the optical fiber cable connector.

[0112] In order to solve the above problems, the researchers improved the ferrule of the fiber optic cable connector. By coupling the connecting piece with the main shell, when the optical cable is subjected to external tension, the external force on the optical cable can be transmitted to the main shell through the connecting piece to avoid being transmitted to the end of the optical cable connected to the ferrule assembly. This can effectively reduce or avoid the tension generated between the end of the optical cable located at the second end of the main shell and the end of the optical cable connected to the ferrule assembly, prevent the optical fiber located in the main shell from breaking due to tension, and avoid the breakage of the optical fiber affecting the normal operation of the optical cable connector, thereby effectively improving the reliability and stability of the optical cable connector.

[0113] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of this application.

[0114] Figure 1 is a structural schematic diagram of an optical cable connector provided in an embodiment of the present application, Figure 2 is an exploded schematic diagram of an optical cable connector provided in an embodiment of the present application, and Figure 3 is a cross-sectional view of an optical cable connector provided in an embodiment of the present application under a cross-section.

[0115] An embodiment of the present application provides an optical cable connector 100 , which can be used to cooperate with a connection box 200 (see FIG. 22 below) to achieve signal transmission.

[0116] 1 and 2 , the optical cable connector 100 may include a main housing 110, a ferrule assembly 120, a connector 130, and an optical cable 140. The main housing 110 may include a first end 111 and a second end 112 opposite each other, and the main housing 110 may include a first accommodating cavity 113 extending through the first end 111 and the second end 112. As shown in FIG3 , the ferrule assembly 120 may be located within the first accommodating cavity 113 of the main housing 110 and connected to the main housing 110, and the ferrule assembly 120 may be disposed proximate to the first end 111.

[0117] The connecting member 130 can be located in the first accommodating cavity 113 of the main shell 110 and arranged near the second end 112 of the main shell 110. The connecting member 130 and the main shell 110 can be coupled to each other. For example, limiting structures can be respectively provided on the connecting member 130 and the main shell 110. The two limiting structures can cooperate with each other so that a limiting fit can be formed between the connecting member 130 and the main shell 110, thereby realizing the coupling between the connecting member 130 and the main shell 110.

[0118] The optical cable 140 may be partially inserted into the connector 130 and connected to the connector 130. For example, the optical cable 140 and the connector 130 may be connected by bonding or other methods to improve the firmness and reliability of the connection between the optical cable 140 and the connector 130. One end of the optical cable 140 located within the main housing 110 may be connected to the ferrule assembly 120. For example, the ferrule assembly 120 may have multiple through holes 12211. The optical cable 140 may include multiple optical fibers, each of which may be inserted into each through hole 12211.

[0119] During the mating process of the optical cable connector 100 and the connection box 200 (see Figure 22 below), the first end 111 of the main shell 110 can be mated with the adapter 220 (see Figure 22 below) on the connection box 200. For example, the first end 111 of the main shell 110 can be inserted into the adapter 220 (see Figure 22 below) so that the core assembly 120 located at the first end 111 of the main shell 110 can be mated with the adapter 220 (see Figure 22 below), so that the optical fiber in the core assembly 120 can be docked with another optical fiber in the adapter to realize the transmission of optical signals.

[0120] Compared with the optical cable connector solutions in the related art, the embodiment of the present application couples the connector 130 and the main shell 110 with each other. In this way, when the optical cable 140 is subjected to external tension, the external force on the optical cable 140 can be transmitted to the main shell 110 through the connector 130 to avoid being transmitted to the end of the optical cable 140 connected to the core assembly 120. This can effectively reduce or avoid the tension generated between the end of the optical cable 140 located at the second end 112 of the main shell 110 and the end of the optical cable 140 connected to the core assembly 120, prevent the optical fiber of the optical cable 140 located in the main shell 110 from being broken due to tension, and avoid the breakage of the optical fiber from affecting the normal operation of the optical cable connector 100, thereby effectively improving the reliability and stability of the operation of the optical cable connector 100.

[0121] The optical cable 140 may include a cable core and an outer sheath. The outer sheath may be disposed over the cable core. For example, the outer sheath may be made of aramid. The outer sheath may protect the cable core, thereby reducing or preventing breakage of the optical cable 140, thereby increasing the tensile strength of the optical cable 140 and prolonging the service life of the optical cable 140. The connector 130 may be disposed over and bonded to the outer sheath. This effectively reduces or prevents separation of the optical cable 140 from the connector 130, thereby effectively improving the secureness and reliability of the connection between the optical cable 140 and the connector 130.

[0122] Continuing to refer to Figure 3, the connecting member 130 may have a first limiting portion 131, and the main shell 110 may have a second limiting portion 114. The first limiting portion 131 may abut against the second limiting portion 114, and the connecting member 130 and the main shell 110 may form the above-mentioned coupling relationship through the abutment between the first limiting portion 131 and the second limiting portion 114.

[0123] When the portion of the optical cable 140 located outside the main housing 110 is subjected to external tension, since the optical cable 140 is connected to the connector 130, the external force can be transmitted to the connector 130 through the portion of the optical cable 140 located at the second end 112 of the main housing 110. The abutment between the connector 130 and the main housing 110 through the first limiting portion 131 and the second limiting portion 114 can transmit force, thereby transmitting the external force to the main housing 110. This can effectively reduce or prevent the external force from being transmitted to the portion of the optical cable 140 located at the first end 111 of the main housing 110, effectively reduce the tension of the optical cable 140 inside the main housing 110, and effectively prevent the optical cable 140 from breaking, preventing the breakage of the optical cable 140 from affecting the normal operation of the optical cable connector 100, thereby effectively improving the stability and reliability of the operation of the optical cable connector 100.

[0124] Continuing with FIG3 , the abutting surface of the first limiting portion 131 can face the second end 112 of the main housing 110, and the abutting surface of the second limiting portion 114 can face the first end 111 of the main housing 110. For example, as shown in FIG3 , the first limiting portion 131 can be positioned near a side of the first end 111 of the main housing 110, and the second limiting portion 114 can be positioned near the second end 112 of the main housing 110. In this way, when the portion of the optical cable 140 located outside the main housing 110 is subjected to a pulling force, the optical cable 140 will drive the connector 130 toward the second end 112 of the main housing 110, thereby causing the connector 130 to move along the x-direction in FIG3 . At this time, the second limiting portion 114 on the main shell 110 can block the first limiting portion 131 to limit the movement of the connecting member 130 in the x direction, thereby transmitting the external force on the optical cable 140 to the main shell 110 to prevent the optical cable 140 from being pulled and broken at the first end 111 of the main shell 110.

[0125] Among them, the mating surface between the first limiting portion 131 and the second limiting portion 114 can be made perpendicular to the axial direction of the main shell 110, which can improve the firmness of the mating between the first limiting portion 131 and the second limiting portion 114, effectively reduce or avoid the separation between the first limiting portion 131 and the second limiting portion 114, and prevent the separation between the first limiting portion 131 and the second limiting portion 114 to affect the force transmission between the connecting member 130 and the main shell 110, thereby effectively improving the stability of the mating between the connecting member 130 and the main shell 110.

[0126] 3 , the optical cable connector 100 may further include a base 150. The base 150 may be located within the first accommodating cavity 113 of the main housing 110. One end of the base 150 may be connected to the connector 130, and the other end may be connected to the ferrule assembly 120 and the main housing 110. The connector 130 may be connected to the ferrule assembly 120 through the base 150, and the optical cable 140 may pass through the base 150 and be connected to the ferrule assembly 120. The base 150 may serve as a connection between the connector 130 and the ferrule assembly 120, allowing the optical cable 140, the connector 130, and the ferrule assembly 120 to be assembled into an integral structure for easy assembly with the main housing 110, thereby facilitating assembly and disassembly of the optical cable connector 100.

[0127] Continuing with FIG3 , the optical cable connector 100 may further include a sleeve member 160. One end of the sleeve member 160 may be sleeved over the second end 112 of the main housing 110 and connected to the main housing 110, and the other end may be sleeved over the optical cable 140 and connected to the optical cable 140. The optical cable 140 and the main housing 110 may be connected via the sleeve member 160. Thus, when an external force is applied to a portion of the optical cable 140 located outside the main housing 110, the optical cable 140 may transmit the force to the main housing 110 via the sleeve member 160, thereby reducing or preventing the external force from being transmitted to the portion of the optical cable 140 located at the first end 111 of the main housing 110, thereby effectively reducing or preventing the portion of the optical cable 140 located at the first end 111 of the main housing 110 from being subjected to force and causing the optical cable 140 to break.

[0128] For example, the sleeve 160 can be a heat shrink sleeve. For example, the sleeve 160 can be initially larger in size to facilitate sleeve installation on the main housing 110 and the optical cable 140. After the sleeve 160 is sleeved on the main housing 110 and the optical cable 140, the sleeve 160 can be heated to shrink the sleeve 160 so as to be tightly wrapped around the main housing 110 and the optical cable 140. This can effectively reduce or prevent the sleeve 160 from being separated from the main housing 110 and the optical cable 140, and can improve the firmness and reliability of the connection between the sleeve 160, the main housing 110, and the optical cable 140, thereby effectively improving the reliability and stability of the connection between the optical cable 140 and the main housing 110.

[0129] FIG4 is a schematic structural diagram of a connector provided in an embodiment of the present application.

[0130] Continuing with FIG3 , a connecting post 151 may be provided on one of the base 150 and the connector 130. In conjunction with FIG4 , a connecting hole 133 cooperating with the connecting post 151 may be provided on the other of the base 150 and the connector 130. For example, the connecting post 151 may be provided on the base 150 as shown in FIG3 , and the connecting hole 133 may be provided on the connector 130 as shown in FIG4 . The connecting post 151 may be inserted into the connecting hole 133, and the connector 130 and the base 150 may be connected to each other through the cooperation between the connecting post 151 and the connecting hole 133. This can reduce the possibility of separation between the connector 130 and the base 150, help improve the reliability and stability of the connection between the connector 130 and the base 150, and enhance the stability of the internal structure of the optical cable connector 100.

[0131] As shown in FIG4 , the connector 130 may be a tubular structure with a hollow interior, with both ends of the tubular structure penetrated, and the optical cable 140 may pass through the tubular structure. The optical cable 140 and the connector 130 may be fixedly connected by glue filling.

[0132] FIG5 is a cross-sectional view of a main shell provided in an embodiment of the present application.

[0133] 4 and 5 , a first limiting groove 132 may be defined on one of the connector 130 and the main housing 110, and a first limiting block 115 may be defined on the other of the connector 130 and the main housing 110 to cooperate with the first limiting groove 132. For example, the first limiting groove 132 may be defined on the connector 130 as shown in FIG4 , and the first limiting block 115 may be provided on the main housing 110 as shown in FIG5 . The first limiting block 115 may cooperate with the first limiting groove 132 to limit relative rotation between the main housing 110 and the connector 130. The cooperation between the first limiting groove 132 and the first limiting block 115 may serve to limit the assembly between the connector 130 and the main housing 110. For example, the first limiting groove 132 on the connecting member 130 can have an opening. During the assembly process of the connecting member 130 and the main housing 110, the first limiting block 115 on the main housing 110 can be inserted into the first limiting groove 132 and moved along the first limiting groove 132 until the first limiting portion 131 on the connecting member 130 and the second limiting portion 114 on the main housing 110 abut against each other, indicating that the connecting member 130 is installed in the appropriate position. This can effectively reduce or prevent the connecting member 130 from rotating during the assembly process with the main housing 110, reduce or prevent the connecting member 130 from rotating relative to the main housing 110 and affecting the normal assembly between the connecting member 130 and the main housing 110, and help improve the accuracy of the fit between the connecting member 130 and the main housing 110.

[0134] Figure 6 is a cross-sectional view of a main shell and a base provided in an embodiment of the present application in combination under one cross-section, Figure 7 is a cross-sectional view of a main shell and a base provided in an embodiment of the present application in combination under another cross-section, Figure 7A is an enlarged view of area A in Figure 6, and Figure 8 is a structural schematic diagram of a base provided in an embodiment of the present application.

[0135] Continuing with FIG6 , the inner wall of the main housing 110 may have a third limiting portion 116, and the outer periphery of the base 150 may have a fourth limiting portion 153 that cooperates with the third limiting portion 116. The fourth limiting portion 153 may cooperate with the third limiting portion 116. For example, the third limiting portion 116 may have a fourth retaining groove 1161, and the fourth limiting portion 153 may be a raised retaining portion. As shown in FIG7A , the fourth limiting portion 153 may be retained within the fourth retaining groove 1161 on the third limiting portion 116. The cooperation between the third limiting portion 116 and the fourth limiting portion 153 can provide axial positioning for the base 150 in the main housing 110, reducing or preventing axial displacement of the base 150 along the main housing 110, and helping to improve the stability and reliability of the assembly between the base 150 and the main housing 110.

[0136] As shown in Figures 7 and 8, a second limiting groove 156 can be further provided on the outer periphery of the base 150, and a second limiting block 118 can be provided on the main shell 110. The second limiting block 118 can be clamped in the second limiting groove 156. The cooperation between the second limiting groove 156 and the second limiting block 118 can limit the relative rotation between the base 150 and the main shell 110, so as to improve the accuracy of the cooperation between the base 150 and the main shell 110 in the circumferential direction and improve the assembly accuracy between the main shell 110 and the base 150.

[0137] 8 , a window 152 may be further provided on the base 150. For example, a portion of the upper portion of the base 150 may be removed along the diameter direction of the base 150 to form a window 152 on the base 150. The window 152 may be opposite to the optical cable 140 in the main housing 110. The staff may observe the arrangement of the internal optical cable 140 through the window 152 to reduce or avoid damage to the optical cable 140 inside the base 150, thereby preventing damage to the optical cable 140 and affecting the normal operation of the optical cable connector 100.

[0138] FIG8A is a schematic structural diagram of another base provided in an embodiment of the present application, and FIG8B is a schematic structural diagram of another main shell provided in an embodiment of the present application.

[0139] Alternatively, in another embodiment, as shown in FIG8A , the base 150 may have a shoulder portion 157 on its outer periphery, and as shown in FIG8B , the main housing 110 may have an elastic snap-fit ​​portion 1103, which may abut against the end surface of the shoulder portion 157. For example, the elastic snap-fit ​​portion 1103 may face the interior of the main housing 110. When the base 150 is inserted into the main housing 110, when the elastic snap-fit ​​portion 1103 abuts against the end surface of the shoulder portion 157, it indicates that the main housing 110 and the base 150 have reached a mating position. The mating between the shoulder portion 157 and the elastic snap-fit ​​portion 1103 can achieve axial position limiting, which can reduce or prevent axial movement between the main housing 110 and the base 150, thereby improving the reliability and stability of the axial connection between the main housing 110 and the base 150.

[0140] Figure 9 is a structural schematic diagram of a ferrule assembly provided in an embodiment of the present application, Figure 10 is a structural schematic diagram of an 8-core optical cable connector provided in an embodiment of the present application from one perspective, Figure 11 is a structural schematic diagram of an 8-core optical cable connector provided in an embodiment of the present application from another perspective, and Figure 12 is a cross-sectional view of a ferrule assembly provided in an embodiment of the present application.

[0141] As shown in FIG9 , in an embodiment of the present application, the ferrule assembly 120 may include a housing assembly 121 and a ferrule structure 122. The housing assembly 121 may include a second accommodating cavity 1211, and the ferrule assembly 120 may be located within the second accommodating cavity 1211. For example, the ferrule structure 122 may be retractable relative to the housing assembly 121. The housing assembly 121 may be configured to cooperate with an adapter on a connection box. The ferrule structure 122 may be inserted into the adapter to mate with the ferrule structure 122 at the other end of the adapter to achieve optical signal transmission. For example, when the optical cable connector 100 is not connected to the adapter, the ferrule structure 122 may extend relative to the housing assembly 121. When the optical cable connector 100 is connected to the adapter, the ferrule structure 122 may be inserted into a positioning sleeve 221 within the adapter and abut against the ferrule structure 122 at the other end. Under the action of the abutting force, the ferrule structure 122 may retract relative to the housing assembly 121.

[0142] The ferrule structure 122 in the retracted state has a tendency to extend out of the shell assembly 121, which can make the ferrule structure 122 more firmly abutted against the ferrule structure 122 at the other end of the adapter, effectively improving the tightness of the fit between the two sets of ferrule structures 122 and improving the transmission efficiency of the optical signal between the two sets of ferrule structures 122.

[0143] In an embodiment of the present application, the ferrule structure 122 may include one or more ferrules 1221, and the multiple ferrules 1221 may be arranged in an array in the form of M rows and N columns, where M ≥ 2 and N ≥ 2. For example, M may be equal to 2, 3, or 4, and the value of N may also be equal to 2, 3, or 4. For example, referring to FIG9 , in some examples, M may be equal to 2 and N may be equal to 2, and the four ferrules 1221 may be arranged in an array in the form of 2 rows and 2 columns as shown in FIG9 . Alternatively, in other examples, referring to FIG10 and FIG11 , M may be equal to 2 and N may be equal to 4, and the eight ferrules 1221 may be arranged in an array in the form of 2 rows and 4 columns as shown in FIG10 . This can effectively increase the number of ferrules 1221 in the optical cable connector 100, thereby effectively increasing the signal transmission capacity of the optical cable connector 100.

[0144] As shown in FIG12 , the ferrule assembly 120 may further include an elastic member 123. The elastic member 123 may be located within the second accommodating cavity 1211 of the housing assembly 121. One end of the elastic member 123 may abut against the inner wall of the second accommodating cavity 1211, and the other end may be connected to the ferrule structure 122. The elastic member 123 may provide an elastic buffer between the ferrule structure 122 and the housing assembly 121, thereby reducing or avoiding rigid impact between the ferrule structure 122 and the housing assembly 121, preventing rigid contact between the ferrule structure 122 and the housing assembly 121 from affecting the tightness of the connection between the ferrule structure 122 and the housing assembly 121, and helping to improve the tightness of the connection between the ferrule structure 122 and the housing assembly 121.

[0145] During the connection of the optical cable connector 100 with the adapter on the connection box, the two core structures 122 are docked in the adapter. Under the docking force of the other core structure 122, the core structure 122 can generate an extrusion force on the elastic member 123, so that the elastic member 123 is in a compressed state. The elastic member 123 in the compressed state has a rebound force, and the rebound force can drive the core structure 122 to be squeezed toward the other core structure 122, so that the two core structures 122 can fit tightly with each other, which can effectively improve the stability of the docking between the two core structures 122, thereby effectively improving the transmission efficiency of the optical signal.

[0146] Continuing with FIG12 , each ferrule 1221 may have a through hole 12211. The optical cable 140 may include multiple optical fibers, each of which may be inserted into the through holes 12211 of the ferrules 1221. When the optical cable connector 100 is mated with the adapter, the ferrules 1221 in the two optical cable connectors 100 may be mated with each other, allowing the optical fibers within the ferrules 1221 to mate, thereby enabling optical signal transmission.

[0147] At least two ferrules 1221 may be connected to one elastic member 123. For example, two ferrules 1221 may be connected to one elastic member 123, or three or more ferrules 1221 may be connected to one elastic member 123. Compared to a configuration in which one elastic member is provided on each ferrule, this configuration can effectively reduce the number of elastic members 123 in the optical cable connector 100, and can reduce the space occupied by the elastic members 123 in the optical cable connector 100, thereby facilitating a miniaturized design of the optical cable connector 100.

[0148] Moreover, compared to providing one elastic member on one ferrule, by connecting at least two ferrules 1221 to one elastic member 123, interference between two adjacent elastic members 123 can be reduced, thereby facilitating the placement of the elastic member 123 within the housing assembly 121. Furthermore, by connecting at least two ferrules 1221 to one elastic member 123, the ferrules 1221 disposed on the same elastic member 123 can be synchronized during their extension and retraction relative to the housing assembly 121, thereby improving the uniformity of the extension and retraction of the ferrules 1221 and thereby effectively enhancing the stability of the mating between the optical cable connector 100 and the adapter.

[0149] The elastic member 123 may be a spring, which may be sleeved outside the ferrule structure 122 . For example, more than two ferrules 1221 may be inserted into one spring to reduce the number of springs, thereby improving the miniaturization design of the optical cable connector 100 .

[0150] Continuing with FIG. 12 , the housing assembly 121 may include a front shell 1212 and a rear shell 1213. The front shell 1212 may have a first cavity 12121. The rear shell 1213 may at least partially extend into the first cavity 12121 of the front shell 1212 and be connected to the front shell 1212. Each ferrule 1221 may include a connecting portion 12212 and a plug-in portion 12213. The connecting portion 12212 may be connected to the plug-in portion 12213. The connecting portion 12212 may be located within the first cavity 12121, and the plug-in portion 12213 may extend from the front end of the front shell 1212 to mate with the adapter. An elastic member 123 may be sleeved over the connecting portion 12212 of the ferrule 1221. One end of the elastic member 123 may be connected to the ferrule 1221, and the other end may be connected to the rear shell 1213.

[0151] For example, one end of the elastic member 123 can abut against the ferrule 1221, and the other end can abut against the rear shell 1213. The elastic member 123 can be in a compressed state between the ferrule 1221 and the rear shell 1213, so that the elastic member 123 can generate a pressing force on the ferrule 1221, so that the ferrule 1221 can be more tightly docked with another ferrule during the process of mating with the adapter.

[0152] Continuing with FIG. 12 , the connection portion 12212 of the ferrule 1221 may have a fifth stopper 12214 at one end near the plug-in portion 12213, and the interior of the front housing 1212 may have a sixth stopper 12125 that cooperates with the fifth stopper 12214. One end of the fifth stopper 12214 may abut against the fifth stopper 12214, while the other end may abut against the elastic member 123. The sixth stopper 12125 and the fifth stopper 12214 may form a stoppering effect, preventing the ferrule 1221 from being dislodged from the front end of the front housing 1212, thereby improving the stability and reliability of the ferrule 1221 within the front housing 1212.

[0153] During the process of the ferrule 1221 being matched with the adapter, the ferrule 1221 can move toward the elastic member 123 under the squeezing action of the ferrule 1221 in the other optical cable connector 100, and the fifth limiting portion 12214 can produce an squeezing action on the elastic member 123, so that the elastic member 123 is in a compressed state. The elastic member 123 in the compressed state can have a rebound force, so that the elastic member 123 can produce a pressing force on the ferrule 1221, so that the ferrule 1221 can be more tightly docked with the other ferrule 1221 during the process of matching with the adapter.

[0154] Continuing with FIG12 , a first slot 12126 may be provided on the front shell 1212, and a first engaging portion 12131 may be provided on the rear shell 1213 to cooperate with the first slot 12126. The first engaging portion 12131 may be secured within the first slot 12126, so that the front shell 1212 and the rear shell 1213 can be connected through the cooperation between the first engaging portion 12131 and the first slot 12126. This provides a reliable connection, a simple structure, and convenient operation. It can effectively prevent the front shell 1212 and the rear shell 1213 from detaching, thereby improving the reliability and firmness of the connection between the front shell 1212 and the rear shell 1213. Furthermore, it helps to improve the assembly efficiency between the front shell 1212 and the rear shell 1213, thereby increasing the production efficiency of the optical cable connector 100.

[0155] Alternatively, in some examples, the setting positions of the first card slot 12126 and the first card connecting portion 12131 can also be interchanged. For example, the first card slot 12126 can be set on the rear shell 1213, and the first card connecting portion 12131 can be set on the front shell 1212. The connection between the front shell 1212 and the rear shell 1213 is achieved through the cooperation between the first card connecting portion 12131 and the first card slot 12126.

[0156] FIG13 is a cross-sectional view of a shell assembly and a base provided in an embodiment of the present application.

[0157] As shown in FIG. 13 , the rear housing 1213 may have a second cavity 12133 communicating with the first cavity 12121, and the base 150 may have a third cavity 155 communicating with the second cavity 12133. The optical fibers in the optical cable 140 may sequentially pass through the third cavity 155 of the base 150 and the second cavity 12133 of the rear housing 1213 and then pass through the through holes 12211 of the respective ferrules 1221. This allows the optical fibers to connect with the optical fibers in the optical cable connector 100 at the other end of the adapter through the ferrules 1221, thereby achieving optical signal transmission.

[0158] Continuing with FIG. 13 , the rear shell 1213 may have a second snap-fitting portion 12132 on one end away from the front shell 1212, and the base 150 may have a second snap-fitting slot 154 that cooperates with the second snap-fitting portion 12132. The second snap-fitting portion 12132 may be snapped into the second snap-fitting slot 154. For example, the second snap-fitting portion 12132 and the first snap-fitting portion 12131 may be disposed opposite each other. One end of the rear shell 1213 may be connected to the front shell 1212 via the first snap-fitting portion 12131, and the other end may be connected to the base 150 via the second snap-fitting portion 12132, thereby connecting the housing assembly 121 to the rear shell 1213. This improves the firmness and reliability of the connection between the front shell 1212, the rear shell 1213, and the base 150, effectively preventing separation between the base 150, the rear shell 1213, and the front shell 1212, and thereby enhancing the overall structural stability of the components within the optical cable connector 100.

[0159] Among them, the setting positions of the second card slot 154 and the second card connecting portion 12132 can also be interchanged. For example, the second card slot 154 can be set on the rear shell 1213, and the second card connecting portion 12132 can be set on the base 150. The connection between the rear shell 1213 and the base 150 can still be achieved through the cooperation between the second card connecting portion 12132 and the second card slot 154.

[0160] FIG14 is a schematic structural diagram of a front shell provided in an embodiment of the present application.

[0161] 14 , in one possible implementation, the front shell 1212 may include M sub-front shells 12122, and the M sub-front shells 12122 may be connected in sequence along the direction from the first row to the Mth row, wherein each sub-front shell 12122 may have a first cavity 12121, and each first cavity 12121 may have an elastic member 123, and each elastic member 123 may be provided with N ferrules 1221, so that the ferrules 1221 may be arranged in M ​​rows and N columns.

[0162] Alternatively, in some examples, the front shell 1212 may also include N sub-front shells 12122, and the N sub-front shells 12122 may be connected in sequence along the direction from the first column to the Nth column, wherein each sub-front shell 12122 may have a first cavity 12121, each first cavity 12121 may have an elastic member 123, and each elastic member 123 may be provided with M ferrules 1221, so that the ferrules 1221 can still be arranged in M ​​rows and N columns.

[0163] For example, when the ferrules 1221 are arranged in 2 rows and 2 columns, that is, M is equal to 2 and N is equal to 2, the front shell 1212 can include 2 sub-front shells 12122 as shown in Figure 14, and the two sub-front shells 12122 can be connected in sequence along the direction from the first column to the second column, and each sub-front shell 12122 can have an elastic member 123, and each elastic member 123 can have 2 ferrules 1221, so that the ferrules 1221 can be arranged in 2 rows and 2 columns.

[0164] By making the front housing 1212 comprise a plurality of mutually independent yet connected sub-front housings 12122, each sub-front housing 12122 can be manufactured independently and then assembled and connected to the rear housing 1213. This improves the independence of the configuration of each sub-front housing 12122. Furthermore, by varying the number of sub-front housings 12122, the ferrules 1221 within the front housing 1212 can be arranged in a variety of different ways, effectively increasing the flexibility of the ferrule 1221 configuration.

[0165] Continuing with FIG14 , the front housing 1212 may have a plurality of openings 12123 on a side facing the first end 111 of the main housing 110, through which the ferrules 1221 may pass. Each ferrule 1221 may pass through one opening 12123, and a connecting rib 12124 may be provided between two adjacent openings 12123. The connecting rib 12124 may separate two adjacent ferrules 1221 to reduce or avoid interference between the two adjacent ferrules 1221, thereby improving the overall structural stability of the optical cable connector 100.

[0166] FIG15 is a schematic structural diagram of a rear shell provided in an embodiment of the present application.

[0167] Accordingly, the rear housing 1213 may also include multiple sub-rear housings 12134. The number of sub-rear housings 12134 may be the same as the number of sub-front housings 12122. In addition, each sub-rear housing 12134 may be connected to each sub-front housing 12122 to form the housing assembly 121 for mounting and fixing the ferrule 1221. For example, as shown in FIG15 , the rear housing 1213 may also include two sub-rear housings 12134, and the two sub-rear housings 12134 may be connected to the two sub-front housings 12122, respectively.

[0168] FIG16 is a schematic structural diagram of another front shell provided in an embodiment of the present application.

[0169] Alternatively, in another possible implementation, as shown in Figure 16, the front shell 1212 can also be an integrated structure, and an isolation wall 121211 can be provided in the first cavity 12121 of the front shell 1212, and the isolation wall 121211 can divide the first cavity 12121 of the front shell 1212 into M sub-cavities 121212, and the M sub-cavities 121212 can be connected in sequence along the direction from the first row to the Mth row, wherein each sub-cavity 121212 can have an elastic member 123, and each elastic member 123 can be penetrated by N ferrules 1221, so that the ferrules 1221 can be arranged in M ​​rows and N columns.

[0170] Alternatively, in some examples, the isolation wall 121211 within the first cavity 12121 can also divide the first cavity 12121 of the front shell 1212 into N sub-cavities 121212, and the N sub-cavities 121212 can be connected in sequence along the direction from the first column to the Nth column, wherein each sub-cavity 121212 can have an elastic member 123, and each elastic member 123 can be penetrated by M ferrules 1221, so that the ferrules 1221 can still be arranged in M ​​rows and N columns.

[0171] For example, referring to FIG16 , the isolation wall 121211 can isolate the first cavity 12121 of the front shell 1212 into two sub-cavities 121212. The two sub-cavities 121212 can be arranged in the direction from the first column to the second column. Two ferrules 1221 can be provided in each sub-cavity 121212 so that the ferrules 1221 can be arranged in 2 rows and 2 columns.

[0172] By making the front shell 1212 an integrated structure, there is only a thickness of an isolation wall 121211 between two adjacent sub-cavities 121212, which can effectively reduce the isolation thickness between the two adjacent sub-cavities 121212, effectively reduce the overall size of the front shell 1212, and improve the miniaturization design of the front shell 1212, thereby effectively reducing the overall size of the optical cable connector 100 and realizing the miniaturization design of the optical cable connector 100.

[0173] The rear shell 1213 may be a split structure or an integrated structure. For example, when the front shell 1212 is an integrated structure, the rear shell 1213 may include the same number of sub-rear shells 12134 as the number of sub-cavities 121212 of the front shell 1212, and each sub-rear shell 12134 may be respectively inserted into each sub-cavity 121212 to achieve connection with the front shell 1212. Alternatively, the rear shell 1213 may also be an integrated structure. The rear shell 1213 may include the same number of sub-cavities as the number of sub-cavities 121212 of the front shell 1212, and each sub-cavity in the rear shell 1213 may be respectively connected to each sub-cavity 121212 in the front shell 1212, so that the optical fiber can pass through the rear shell 1213 in sequence and then extend into the ferrule 1221 in the front shell 1212.

[0174] FIG17 is a cross-sectional view of an optical cable connector provided in an embodiment of the present application in another cross-sectional view.

[0175] 17 , the optical cable connector 100 may further include a locking cap 170, which may be sleeved over the first end 111 of the main housing 110 and rotatably engaged with the main housing 110. The locking cap 170 may engage with a structure on the adapter to allow the optical cable connector 100 to be connected to the adapter.

[0176] For example, the adapter may have a guide groove structure that cooperates with the main housing 110, the main housing 110 may be inserted into the guide groove, and the locking cap 170 may be sleeved on the outside of the adapter. The outer periphery of the adapter may have a first slide groove and a second slide groove connected to each other, wherein the first slide groove may extend along the axial direction of the adapter and the first slide groove may extend to the end surface of the adapter, and the second slide groove may extend along the circumference of the adapter. The inner wall of the locking cap 170 may have a first limiting post 174 (see Figure 19), which can cooperate with the first and second slide grooves on the locking cap 170 to connect the locking cap 170 to the adapter.

[0177] For example, the locking cap 170 can be rotated along the extending direction of the first and second slots so that the first limiting post 174 on the locking cap 170 finally abuts against the end of the second slot. The second slot can axially limit and fix the first limiting post 174 to prevent the locking cap 170 from moving along the axial direction of the adapter, thereby improving the firmness and reliability of the connection between the optical cable connector 100 and the adapter and enhancing the stability of the fit between the two optical cable connectors 100.

[0178] Continuing with FIG17 , the optical cable connector 100 may further include a sealing member 173, which may be located between the main housing 110 and the locking cap 170. The sealing member 173 may provide a seal between the main housing 110 and the locking cap 170. This can effectively reduce or prevent external water stains, dirt, etc. from entering the interior of the main housing 110 through the gap between the locking cap 170 and the main housing 110, thereby helping to improve the cleanliness of the interior of the main housing 110, preventing water stains, dirt, etc. from entering the interior of the main housing 110 and affecting the mating stability between the optical cable connector 100 and the adapter, thereby helping to improve the stability of the optical cable connector 100 in transmitting optical signals.

[0179] Continuing with FIG. 17 , the optical cable connector 100 may further include a tail sleeve 180. The tail sleeve 180 may be mounted on the second end 112 of the main housing 110 and may be mounted on at least the sleeve member 160. The tail sleeve 180 may be made of rubber with a certain elasticity. The tail sleeve 180 provides elastic protection for the optical cable 140. When the optical cable 140 is bent, the tail sleeve 180 may increase the bending radius of the optical cable 140 to prevent the optical cable 140 from breaking due to a small bending radius, thereby preventing the optical cable 140 from breaking and affecting signal transmission between the optical fiber cable connector 100.

[0180] Continuing to refer to Figure 17, the front end of the ferrule assembly 120 can protrude from the first end 111 of the main shell 110. This makes it easier to clean the end face of the ferrule assembly 120, thereby reducing or avoiding dust and other stains that fall into the front end of the ferrule assembly 120 and affect the fit between the ferrule assembly 120 and the optical fiber, which is beneficial to improving the stability of the optical fiber transmission signal in the ferrule assembly 120.

[0181] The first end 111 of the main shell 110 can protrude from the front end of the locking cap 170, so as to reduce or avoid the blocking of the first end 111 of the main shell 110 by the locking cap 170. During the process of connecting the main shell 110 with the adapter 220, it is convenient to observe the fit between the main shell 110 and the adapter 220, which is conducive to improving the accuracy of the fit between the main shell 110 and the adapter 220.

[0182] FIG18 is a schematic structural diagram of a main shell provided in an embodiment of the present application.

[0183] Continuing with Figures 17 and 18 , the main housing 110 may have a third retaining groove 117, and the tail sleeve 180 may have a third retaining portion 181 that cooperates with the third retaining groove 117. The third retaining portion 181 can be retained within the third retaining groove 117, and the tail sleeve 180 can be connected through the engagement of the third retaining portion 181 with the third retaining groove 117. The engagement between the third retaining portion 181 and the third retaining groove 117 can reduce or prevent separation between the tail sleeve 180 and the main housing 110, thereby improving the reliability and stability of the connection between the main housing 110 and the tail sleeve 180 and enhancing the overall structural stability of the optical cable connector 100.

[0184] Among them, the setting positions of the third card slot 117 and the third card connecting portion 181 can also be interchanged. For example, the third card slot 117 can be set on the tail sleeve 180, and the third card connecting portion 181 can be set on the main shell 110. The connection between the main shell 110 and the tail sleeve 180 can still be achieved through the cooperation between the third card connecting portion 181 and the third card slot 117.

[0185] Alternatively, in some examples, the tail sleeve 180 and the main housing 110 may be connected by bonding, threading, or the like.

[0186] FIG19 is a cross-sectional view of a locking cap provided in an embodiment of the present application.

[0187] 18 , a third limiting block 119 may be provided on one of the main housing 110 and the locking cap 130. In conjunction with FIG19 , a seventh limiting portion 171 may be provided on the other of the main housing 110 and the locking cap 130. The seventh limiting portion 171 may be provided along the circumference of the main housing 110 or the locking cap 130. The seventh limiting portion 171 may have a first notch 172 for the third limiting block 119 to pass through.

[0188] For example, when the third limiting block 119 is aligned with the first notch 172 on the seventh limiting portion 171, the locking cap 130 can be removed from the main housing 110, thereby separating the locking cap 130 from the main housing 110. Conversely, when the third limiting block 119 is not aligned with the first notch 172 on the seventh limiting portion 171, the seventh limiting portion 171 can act as a limiting and blocking force on the third limiting block 119, thereby preventing the locking cap 130 from moving axially in the main housing 110. When assembling the locking cap 130 with the main housing 110, a worker can align the third limiting block 119 with the first notch 172 to prevent the seventh limiting portion 171 from blocking the third limiting block 119, thereby allowing the locking cap 130 to be assembled with the main housing 110. After the third limit block 119 passes through the first notch 172, the locking cap 130 can be rotated to misalign the third limit block 119 with the first notch 172, so that the seventh limit portion 171 can block the third limit block 119, thereby preventing the locking cap 130 from falling off the main shell 110, and completing the assembly between the locking cap 130 and the main shell 110.

[0189] When the locking cap 130 needs to be removed from the main shell 110, the locking cap 130 can be rotated and the third limit block 119 can be aligned with the first notch 172, so that the seventh limit portion 171 loses its limiting effect on the third limit block 119, thereby removing the locking cap 130 from the main shell 110 and completing the disassembly between the locking cap 130 and the main shell 110.

[0190] By providing a third limiting block 119 on one of the main housing 110 and the locking cap 130, and providing a seventh limiting portion 171 having a first notch 172 on the other, when the locking cap 130 and the main housing 110 need to be assembled or disassembled, the third limiting block 119 can be aligned with the first notch 172, thereby facilitating the installation or disassembly of the locking cap 130 and the main housing 110. By rotating the locking cap 130 so that the third limiting block 119 and the first notch 172 are offset from each other, the seventh limiting portion 171 can limit and block the third limiting block 119, thereby preventing the locking cap 130 from falling off the main housing 110, thereby effectively improving the overall structural stability of the optical cable connector 100.

[0191] Specifically, as shown in FIG18 , a third limiting block 119 may be provided on the outer side of the main housing 110. As shown in FIG5 and FIG19 , a seventh limiting portion 171 may be provided on the inner wall of the locking cap 170. The seventh limiting portion 171 may be arranged circumferentially of the inner wall of the locking cap 170. The seventh limiting portion 171 may have a first notch 172, which allows the third limiting block 119 on the main housing 110 to pass through. When the third limiting block 119 on the main housing 110 is aligned with the first notch 172, the main housing 110 can be removed from the locking cap 170. Conversely, when the limiting block on the main housing 110 is not aligned with the first notch 172 on the seventh limiting portion 171, the seventh limiting portion 171 can block the third limiting block 119, thereby preventing the main housing 110 from moving in the axial direction of the locking cap 170. This can effectively reduce or prevent the main housing 110 from falling out of the locking cap 170 during use of the optical cable connector 100, effectively improve the stability of the main housing 110 and the locking cap 170, and enhance the overall structural stability of the optical cable connector 100.

[0192] When the staff needs to remove the locking cap 170 from the main shell 110, the locking cap 170 can be rotated to align the third limit block 119 with the first notch 172, so that the seventh limit portion 171 loses its limiting effect on the third limit block 119, thereby removing the locking cap 170 from the main shell 110.

[0193] Continuing with FIG. 18 , an open slot 1111 may be defined on the first end 111 of the main housing 110. The open slot 1111 may extend from the end of the main housing 110 along the axial direction of the main housing 110. The open slot 1111 may cooperate with a positioning key on the adapter 220. For example, the adapter 220 may have a slot in which the positioning key may be disposed. During the mating process between the main housing 110 and the adapter 220, the main housing 110 may be inserted into the slot, and the positioning key in the slot may engage with the open slot 1111 of the main housing 110. The mating between the open slot 1111 and the positioning key may provide circumferential limiting between the main housing 110 and the adapter 220, thereby preventing relative rotation between the main housing 110 and the adapter 220 and preventing the locking cap 170 from rotating relative to the adapter 220 during the locking process, thereby effectively improving the locking reliability of the locking cap 170.

[0194] For example, the end of the opening slot 1111 may also be trumpet-shaped so that the positioning key on the adapter 220 can be easily inserted into the opening slot 1111 .

[0195] Continuing with FIG. 18 , a flange 1101 may be provided on the outer periphery of the main housing 110. Referring to FIG. 19 , a stopper 175 may be provided on the inner wall of the locking cap 170, and the flange 1101 may abut against the stopper 175. During assembly of the main housing 110 and the locking cap 170, the locking cap 170 is sleeved onto the main housing 110 from the second end 112 of the main housing 110 along the x-direction in FIG. 18 . When the stopper 175 on the locking cap 170 abuts against the flange 1101 on the main housing 110, it indicates that the locking cap 170 has moved to the appropriate position in the axial direction of the main housing 110. At this point, the axial movement of the locking cap 170 in the main housing 110 can be stopped, and then the locking cap 170 can be rotated to displace the first stopper 115 from the first notch 172.

[0196] The cooperation between the limit platform 175 and the flange 1101 can provide axial positioning for the assembly between the main shell 110 and the locking cap 170, which can reduce or avoid the offset of the locking cap 170 and the main shell 110 during the assembly process, thereby effectively improving the assembly accuracy between the main shell 110 and the locking cap 170.

[0197] The opening slot 1111 may extend to a position close to the flange 1101 , thereby increasing the length of the opening slot 1111 to ensure sufficient docking between the main housing 110 and the adapter.

[0198] 3 , the locking cap 170 can be located at the first end 111 of the main housing 110. When the third limiting block 119 is located outside the main housing 110 and the seventh limiting portion 171 is located on the inner wall of the locking cap 170, the seventh limiting portion 171 can be located on the side of the third limiting block 119 facing the first end 111 of the main housing 110. For example, as shown in FIG3 , during the assembly process of the main housing 110 and the locking cap 170, the locking cap 170 can be sleeved onto the main housing 110 from the second end 112 of the main housing 110 along the x-direction in the figure, and then the third limiting block 119 on the main housing 110 can be passed through the first notch 172 on the inner wall of the locking cap 170, and the seventh limiting portion 171 can be located on the side of the third limiting block 119 facing the first end 111 of the main housing 110.

[0199] In this way, during the use of the optical cable connector 100, the third limit block 119 can limit and resist the seventh limit portion 171, which can effectively prevent the locking cap 170 from moving relative to the main shell 110 in the opposite direction of x in the figure, and prevent the locking cap 170 from falling off the main shell 110, thereby effectively improving the structural stability of the optical cable connector 100.

[0200] Figure 19A is a structural schematic diagram of a main shell provided in an embodiment of the present application from another perspective, Figure 19B is a structural schematic diagram of a locking cap provided in an embodiment of the present application, and Figure 19C is a structural schematic diagram of the cooperation between a main shell and a locking cap provided in an embodiment of the present application.

[0201] Continuing with Figures 19A and 19B , one of the main housing 110 and the locking cap 170 may have two fourth limiting blocks 176, which may be spaced circumferentially apart. The other of the main housing 110 and the locking cap 170 may have a second limiting post 1102. As shown in Figure 19C , the second limiting post 1102 may be positioned between the two fourth limiting blocks 176 and may rotate within the angular range defined by the two fourth limiting blocks 176.

[0202] The two fourth limiting blocks 176 can limit the second limiting post 1102, allowing the second limiting post 1102 to rotate within the space formed by the two fourth limiting blocks 176, thereby ensuring that the locking cap 170 and the main housing 110 are in a predetermined angular range. Thus, during the connection between the optical cable connector 100 and the adapter, the locking cap 170 is positioned on the adapter, and the locking block 136 on the locking cap 170 enters the locking groove on the adapter. The locking block 136 can enter the locking groove through the opening of the locking groove even when the locking cap 170 rotates at any angle relative to the main housing 110. This effectively reduces or prevents situations in which the locking block 136 cannot mate with the locking groove due to excessive rotation of the locking cap 170, thereby improving the accuracy of the mating between the locking block 136 and the locking groove.

[0203] For example, as shown in Figures 19A and 19B, the second limiting post 1102 can be located on the main housing 110, for example, on the outer wall of the flange 1101, and the two fourth limiting blocks 176 can be located on the inner wall of the locking cap 170. The two fourth limiting blocks 176 can be arranged along the circumference of the locking cap 170. The second limiting post 1102 located on the flange 1101 can rotate within the angular range defined by the two fourth limiting blocks 176, thereby limiting the rotation range of the locking cap 170, so that the locking block 136 on the locking cap 170 can smoothly enter the locking groove on the adapter.

[0204] Alternatively, in some examples, the second limiting post 1102 may be located on the inner wall of the locking cap 170, and the two fourth limiting blocks 176 may be located on the main housing 110, for example, the two fourth limiting blocks 176 may be located on the outer wall of the flange 1101. The second limiting post 1102 located on the locking cap 170 can rotate within the angular range defined by the two fourth limiting blocks 176, thereby limiting the rotational range of the locking cap 170, thereby allowing the locking block 136 on the locking cap 170 to smoothly enter the locking groove on the adapter.

[0205] Figure 19D is a schematic structural diagram of another locking cap provided in an embodiment of the present application.

[0206] In another possible implementation, as shown in FIG19D , the inner wall of the locking cap 170 may further include a fifth limiting block 177. The fifth limiting block 177 may be arranged along the circumference of the locking cap 170, and a gap 1771 may be defined between the leading and trailing ends of the fifth limiting block 177. The second limiting post 1102 on the flange 1101 may be located within the gap 1771 between the leading and trailing ends of the fifth limiting block 177, and the second limiting post 1102 may rotate within the angular range defined by the leading and trailing ends of the fifth limiting block 177.

[0207] The head and tail ends of the fifth limiting block 177 can limit the second limiting column 1102 so that the locking cap 170 can rotate within a specified range, thereby allowing the locking block 136 on the locking cap 170 to smoothly enter the locking groove on the adapter.

[0208] Alternatively, in another possible implementation, a second notch (not shown) may be provided on the flange 1101, and a third limiting post (not shown) may be provided on the locking cap 170. The third limiting post may be located within the second notch and may rotate within an angular range defined by the notch. This allows the locking cap 170 to rotate within a specified range relative to the main housing 110, thereby allowing the locking block 136 on the locking cap 170 to smoothly enter the locking groove on the adapter.

[0209] In an embodiment of the present application, the main shell 110 can be an integral structure. For example, the main shell 110 can be integrally formed by injection molding or stamping, so that the main shell 110 becomes an integral structure. This can improve the firmness and reliability of the structure of the main shell 110, and help improve the overall structural stability and reliability of the optical cable connector 100.

[0210] FIG19E is an exploded view of another optical cable connector provided in an embodiment of the present application.

[0211] 19E , in one possible implementation, the optical cable connector 100 may include a crimping ring 101. The crimping ring 101 may be sleeved onto the optical cable 140 and connected to the optical cable 140. The crimping ring 101 may also be sleeved onto the second end 112 of the main housing 110. The crimping ring 101 may be used to press the optical cable 140 against the main housing 110. For example, the crimping ring 101 may be mechanically crimped onto the optical cable 140 and then crimped onto the main housing 110, so that the optical cable 140 is connected to the main housing 110 via the crimping ring 101. This may improve the firmness and reliability of the connection between the optical cable 140 and the main housing 110, thereby enhancing the overall structural stability of the optical cable connector 100.

[0212] For example, the optical cable 140 may include an optical cable body 140 and a reinforcement layer (not shown) sleeved on the optical cable body 140. For example, the reinforcement layer may be aramid, and the reinforcement layer may be partially compressed between the crimping ring 101 and the main housing 110. In this way, the optical cable 140 can be connected to the compression ring and the main housing 110 through the reinforcement layer, which can effectively reduce or avoid separation between the optical cable 140 and the main housing 110, thereby effectively improving the firmness and reliability of the connection between the optical cable 140 and the main housing 110.

[0213] In the embodiment of the present application, the ferrule 1221 can be a ceramic ferrule. Ceramics have high strength and rigidity, which can improve the accuracy of the ferrule 1221, so that during the docking process of the optical cable connector 100, the ferrules 1221 at both ends can be better aligned, which helps to improve the accuracy of the alignment of the optical fibers in each ferrule 1221, and can effectively reduce the transmission loss between optical fibers, thereby effectively improving the transmission efficiency of optical signals between the optical cable connectors 100.

[0214] Moreover, the surface of the ceramic ferrule is smooth and easy to clean, which can effectively reduce the dust on the surface of the ferrule 1221 and prevent the dust on the surface of the ferrule 1221 from being too large and affecting the transmission of the optical signal, thereby further reducing the loss and improving the efficiency of the optical signal transmission.

[0215] In addition, the ceramic ferrule has high rigidity and strength, which can effectively reduce or avoid damage or breakage of the ferrule 1221 , and help improve the reliability and stability of optical signal transmission between the optical cable connectors 100 .

[0216] FIG20 is a structural schematic diagram of a dust cap and an optical cable connector provided in an embodiment of the present application, and FIG21 is an exploded schematic diagram of a dust cap and an optical cable connector provided in an embodiment of the present application.

[0217] 20 and 21 , the optical cable connector 100 may further include a dust cap 190. The dust cap 190 may be mounted on the first end 111 of the main housing 110 and may be detachably connected to the main housing 110. The dust cap 190 may be mounted on the main housing 110 when the optical fiber cable connector 100 is not in use and removed when the optical cable connector 100 is in use. The dust cap 190 may provide protection for the ferrule assembly 120 within the main housing 110, thereby reducing or preventing external dirt such as dust, water stains, and oil stains from entering the ferrule assembly 120 within the main housing 110, thereby preventing dirt from entering the ferrule assembly 120 and affecting the signal transmission of the optical fiber. This may help improve the cleanliness of the ferrule assembly 120 and enhance the stability and reliability of the operation of the optical fiber cable connector 100.

[0218] Continuing with reference to FIG. 21 , the optical cable connector 100 may further include a dust cover 191, which may be placed on the ferrule 1221 to protect the ferrule 1221. This may effectively reduce or prevent external dirt from entering the through hole 12211 of the ferrule 1221, thereby helping to improve the cleanliness of the interior of the ferrule 1221 and prevent dirt from entering the ferrule 1221 and affecting signal transmission between optical fibers, thereby effectively improving the reliability and stability of optical fiber transmission.

[0219] FIG22 is a schematic structural diagram of a connection box provided in an embodiment of the present application, and FIG23 is a schematic structural diagram of an adapter provided in an embodiment of the present application from a certain perspective.

[0220] The embodiment of the present application further provides a connection box 200, as shown in FIG22 . The connection box 200 may include a housing 210 and an adapter 220. The adapter 220 may be located on the housing 210. The adapter 220 in the connection box 200 may be used to cooperate with the optical fiber cable connector 100 provided in any of the above scenarios. By cooperating the adapter 220 in the connection box 200 with the optical fiber cable connector 100, the two optical fiber cable connectors 100 inside and outside the connection box 200 can be docked through the adapter 220 to achieve optical signal transmission. The optical cable connector 100 has high reliability and stability, which can effectively improve the stability and reliability of optical signal transmission in the connection box 200.

[0221] For example, as shown in FIG23 , the adapter 220 may include the same number of positioning sleeves 221 as the number of ferrules 1221 in the optical cable connector 100, and the positioning sleeves 221 may be configured to correspond to the arrangement of the ferrules 1221. For example, in an embodiment of the present application, the positioning sleeves 221 may also be arranged in an array in M ​​rows and N columns, so that the positioning sleeves 221 correspond one-to-one to the ferrules 1221.

[0222] A positioning through-hole may be provided in the positioning sleeve 221, and both ends of the positioning through-hole may be used to insert the ferrule 1221. For example, the positioning sleeve 221 may be a ceramic sleeve, and one end of the positioning through-hole may be connected to the outside of the connection box 200, and the other end may be connected to the inside of the connection box 200. The ferrule 1221 in the optical cable connector 100 located outside the connection box 200 may be inserted into one end of the positioning through-hole, and the ferrule 1221 in the optical cable connector 100 located inside the connection box 200 may be inserted into the other end of the positioning through-hole, so that the two ferrules 1221 can be docked through the positioning sleeve 221 to achieve docking of the optical fibers. This can effectively improve the coaxiality of the connection of the ferrules 1221 and the accuracy of the docking of the ferrules 1221, thereby effectively improving the efficiency of signal transmission between the optical fibers.

[0223] For example, taking M equal to 2 and N equal to 2 as an example, that is, the number of the ferrules 1221 is 4, and the ferrules 1221 are arranged in 2 rows and 2 columns. At this time, the positioning sleeves 221 can also be arranged in 2 rows and 2 columns as shown in Figure 23, so that the four ferrules 1221 can be respectively inserted in the four positioning sleeves 221.

[0224] FIG24 is a schematic structural diagram of an adapter provided in an embodiment of the present application from another perspective.

[0225] As shown in FIG. 24 , the adapter 220 and the housing 210 can be detachably connected via a nut 230 . For example, the adapter 220 can be produced separately and then assembled with the housing 210 to form the connection box 200 .

[0226] Alternatively, in some examples, the adapter 220 and the housing 210 may be an integral structure. For example, the adapter 220 and the housing 210 may be manufactured by integral injection molding or integral stamping.

[0227] FIG25 is a cross-sectional view of an adapter provided in an embodiment of the present application.

[0228] As shown in FIG25 , the adapter 220 may include a first connecting portion 222 and a second connecting portion 223. The first connecting portion 222 may include a third end 2221 and a fourth end 2222 opposite each other. The third end 2221 may be located outside the housing 210, and the fourth end 2222 may be located on the inner wall of the housing 210. The second connecting portion 223 may be located inside the housing 210 and detachably connected to the fourth end 2222 of the first connecting portion 222. A first mounting portion 2223 may be provided on the first end 111 of the first connecting portion 222, and a second mounting portion 2231 may be provided on the second connecting portion 223. The first mounting portion 2223 and the second mounting portion 2231 may be disposed opposite each other. One end of the positioning sleeve 221 may be inserted into the first mounting portion 2223, and the other end may be mounted in the stacking mounting portion.

[0229] Among them, the ferrule 1221 in the optical cable connector 100 located outside the connection box 200 can be inserted into the positioning sleeve 221 located in the first mounting portion 2223, and the ferrule 1221 in the optical cable connector 100 located inside the connection box 200 can be inserted into the positioning sleeve 221 located in the second mounting portion 2231, so that the two ferrules 1221 can be docked through the positioning sleeve 221 to realize signal transmission.

[0230] The first connection portion 222 and the second connection portion 223 can be produced separately and then assembled together. For example, the first connection portion 222 and the second connection portion 223 can be made by injection molding or stamping.

[0231] By making the adapter 220 include a first connection part 222 and a second connection part 223, and making the first connection part 222 and the second connection part 223 detachably connected, it is convenient to demold the first connection part 222 and the second connection part 223, which can simplify the production mold of the adapter 220, reduce the mold cost of the adapter 220, and thus effectively reduce the production cost of the adapter 220.

[0232] Alternatively, in some examples, the adapter 220 may be a one-piece structure.

[0233] The following describes the application scenarios of the optical cable connector provided in the embodiments of the present application with reference to the accompanying drawings.

[0234] Figure 26 is an application link diagram of an optical cable connector provided in an embodiment of the present application, Figure 27 is a link diagram inside a first main connection box provided in an embodiment of the present application, Figure 28 is a link diagram inside a first extension connection box provided in an embodiment of the present application, and Figure 29 is a link diagram inside a fourth main connection box provided in an embodiment of the present application.

[0235] The optical cable connector provided in the embodiments of the present application can be used to cascade multiple connection boxes. For example, the connection box can be a fiber access terminal (FAT), and multiple connection boxes can be connected through the optical cable connector. For example, taking an optical cable connector with four ferrules (also known as a 4-core optical cable connector) as an example, the connection box on the main link can be the main connection box, and new links can be extended on the main link. The connection box on the extended link can be an extended connection box.

[0236] For example, as shown in FIG26 , the number of master connection boxes can be four. For ease of understanding, the four master connection boxes can be a first master connection box 310, a second master connection box 320, a third master connection box 330, and a fourth master connection box 340. Each master connection box can include an optical input end and multiple optical output ends. For example, as shown in FIG27 , taking the first master connection box 310 as an example, the first master connection box 310 can include an optical input end and four optical output ends. For example, the optical input end can be a first input end 311, and the four output ends can be a first output end 312, a second output end 313, a third output end 314, and a fourth output end 315. The input end can be a multi-core input end, which means that the input end of the master connection box is connected to a multi-core optical cable connector (e.g., a 4-core optical cable connector) to transmit signals to the connection box through four optical fibers. For example, in this example, as shown in the figure, only three of the four ferrules can have optical signals.

[0237] Optical output terminals can include single-fiber output terminals, multi-fiber output terminals, and entrance terminals. For example, first output terminal 312 and third output terminal 314 can be single-fiber output terminals, second output terminal 313 can be a multi-fiber output terminal, and fourth output terminal 315 can be an entrance terminal. A single-fiber output terminal outputs optical signals via a single optical fiber, while a multi-fiber output terminal outputs signals via multiple optical fibers. An entrance terminal is a terminal that connects to a user's indoor space to provide signals.

[0238] An extension connection box can also be connected to the main connection box. For example, as shown in Figure 26 , taking the first main connection box 310 as an example, two extension connection boxes can be connected to the first main connection box 310. The two extension connection boxes can be a first extension connection box 410 and a second extension connection box 420. As shown in Figure 28 , taking the first extension connection box 410 as an example, the first extension connection box 410 can have an input terminal and an output terminal. For example, the first extension connection box 410 can have a second input terminal 411 and a fifth output terminal 412. The second input terminal 411 can be a single-core input terminal, which can be connected to the first output terminal 312 of the first main connection box 310. The fifth output terminal 412 can be a home terminal to provide signals to users.

[0239] Referring to Figures 26 and 27, taking the first main connection box 310 as an example, the three optical fiber signals connected to the first main connection box 310 can be connected to the splitter respectively, and the splitter can further split the signal into multiple channels. For example, referring to Figure 27, the three splitters can be the first splitter 316, the second splitter 317 and the third splitter 318 respectively, wherein the first splitter 316 and the second splitter 317 can be 1:2 splitters, and the third splitter 318 can be a 1:9 splitter.

[0240] One optical fiber in the first optical splitter 316 can be connected to the first extension connection box 410 via the first output port 312, and another optical fiber can be connected to the second main connection box 320 via the second output port 313. One optical fiber in the second optical splitter 317 can be connected to the second extension connection box 420 via the third output port 314, and another optical fiber can be connected to the second main connection box 320 via the second output port 313. One optical fiber in the third optical splitter 318 can be connected to the second main connection box 320 via the second output port 313, while the remaining eight optical fibers can be used to enter a user's home, providing signals to the user's indoor space. This still creates three optical fibers input to the second main connection box 320. The connection method for the three optical fibers in the second main connection box 320 can be similar to that in the first main connection box 310, allowing signals to be transmitted to the third main connection box 330. The third main connection box 330 can then transmit signals to the fourth main connection box 340 in the same manner. As shown in FIG29 , the fourth main connection box 340 is an end connection box. The fourth connection box may include one input port and three output ports. For example, the fourth connection box may include a third input port 341, a sixth output port 342, a seventh output port 343, and an eighth output port 344. The third input port 341 may be a multi-core input port, the sixth output port 342 and the seventh output port 343 may be single-core output ports, and the eighth output port 344 may be a user-entry port. One of the three optical fibers within the fourth main connection box may be fully split by an optical splitter and then passed into the user's room through the eighth output port 344, while the remaining two optical fibers may be connected to the expansion connection box through the sixth output port 342 and the seventh output port 343, respectively.

[0241] Continuing with the example of the first master connection box 310, the three optical splitters in the first master connection box 310 can be unequal-ratio optical splitters. Unequal-ratio optical splitters refer to optical splitters with varying signal energy intensities at their output ends. For example, the first optical splitter 316 and the second optical splitter 317 can be 1:2 unequal-ratio optical splitters, with specifications such as 90 / 10, 85 / 15, or 70 / 30. For example, taking the 90 / 10 ratio for the first optical splitter 316 as an example, the energy in the two optical fibers output by the first optical splitter 316 is 90% of the total input energy in one fiber, and 10% of the total input energy in the other fiber. The optical output port with less energy can be connected to an expansion connection box, while the optical output port with more energy can be connected to the next master connection box (e.g., the second master connection box 320), ensuring that the next master connection box has sufficient energy to transmit to the next master connection box.

[0242] Correspondingly, the third optical splitter 318 can be a 1:9 unequal-ratio optical splitter. The energy of one output end of the third optical splitter 318 can be larger, and the energy of the remaining 8 output ends can be equal. For example, the energy proportion of the output end with larger energy can be 90%, 85% or 70%, etc., and the remaining 8 can equally divide the remaining energy to input into the user's room.

[0243] The expansion connection box and the main connection box can be from different suppliers, or they can be from the same supplier. If the expansion connection box and the main connection box are from different suppliers and the user terminal needs to switch to a different operator, it only needs to connect the optical cable connector from the port of the original operator to the port of the other operator.

[0244] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances. The terms "first", "second", "third", "fourth", etc. (if any) are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0245] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present application, rather than to limit them. Although the embodiments of the present application have been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An optical cable connector, characterized in that, Comprising: A main housing (110), the main housing (110) includes opposite first and second ends (111, 112), and a first accommodation cavity (113) penetrating through the first end (111) and the second end (112) is provided inside the main housing (110); A ferrule assembly (120), the ferrule assembly (120) is located inside the first accommodation cavity (113); A connecting member (130), the connecting member (130) is located inside the first accommodation cavity (113) and is disposed near the second end (112), and the connecting member (130) is coupled to the main housing (110); An optical cable (140), a part of the optical cable (140) is inserted into the connecting member (130) and is connected to the connecting member (130), and one end of the optical cable (140) located inside the main housing (110) is connected to the ferrule assembly (120).

2. The optical cable connector according to claim 1, wherein The connecting member (130) has a first limiting portion (131), and the main housing (110) has a second limiting portion (114); The first limiting portion (131) abuts against the second limiting portion (114), and the coupling relationship between the connecting member (130) and the main housing (110) is formed by the abutment of the first limiting portion (131) and the second limiting portion (114).

3. The optical cable connector according to claim 2, characterized in that, The abutting surface of the first limiting portion (131) faces the second end (112) of the main housing (110), and the abutting surface of the second limiting portion (114) faces the first end (111) of the main housing (110).

4. The optical cable connector according to any one of claims 1 to 3, characterized in that, One of the connecting member (130) and the main housing (110) has a first limiting groove (132), and the other of the connecting member (130) and the main housing (110) has a first limiting block (115) that cooperates with the first limiting groove (132); The first limiting block (115) cooperates with the first limiting groove (132) to limit the relative rotation between the main housing (110) and the connecting member (130).

5. The optical cable connector according to any one of claims 1 to 3, characterized in that Further comprising: A base (150), the base (150) is located inside the first accommodation cavity (113) of the main housing (110); One end of the base (150) is connected to the connecting member (130), and the other end of the base (150) is connected to the ferrule assembly (120) and the main housing (110); The optical cable (140) passes through the base (150) and is connected to the ferrule assembly (120).

6. The optical fiber cable connector according to claim 5, characterized in that, One of the base (150) and the connecting member (130) has a connecting post (151), and the other of the base (150) and the connecting member (130) is provided with a connecting hole (133) that cooperates with the connecting post (151); The connecting post (151) is inserted into the connecting hole (133), and the connecting member (130) and the base (150) are connected by the cooperation of the connecting post (151) and the connecting hole (133).

7. The optical cable connector according to claim 5 or 6, characterized in that, A window (152) is further formed on the base (150).

8. The optical cable connector according to any one of claims 5 to 7, characterized in that The inner wall of the main housing (110) has a third limiting portion (116), and the outer periphery of the base (150) has a fourth limiting portion (153) that cooperates with the third limiting portion (116); The fourth limiting portion (153) abuts against the third limiting portion (116).

9. The optical cable connector according to any one of claims 1 to 3, characterized in that, It further includes: A sleeve member (160), one end of the sleeve member (160) is sleeved on the second end (112) of the main housing (110) and is connected to the main housing (110), and the other end of the sleeve member (160) is sleeved on the optical cable (140) and is connected to the optical cable (140).

10. The optical cable connector according to any one of claims 5 to 8, characterized in that The ferrule assembly (120) includes: A housing assembly (121), the housing assembly (121) has a second accommodation cavity (1211); A ferrule structure (122), at least a part of the ferrule structure (122) is disposed in the second accommodation cavity (1211).

11. The optical cable connector according to claim 10, wherein The ferrule assembly (120) further includes: An elastic member (123), the elastic member (123) is located in the second accommodation cavity (1211), one end of the elastic member (123) abuts against the inner wall of the second accommodation cavity (1211), and the other end of the elastic member (123) is connected to the ferrule structure (122).

12. The optical cable connector according to claim 11, wherein, The ferrule structure (122) includes a plurality of ferrules (1221), each ferrule (1221) has a through hole (12211), the optical cable (140) includes a plurality of optical fibers, and the plurality of optical fibers are respectively disposed in the through holes (12211) of the respective ferrules (1221); At least two ferrules (1221) are connected to one elastic member (123).

13. The optical cable connector according to claim 12, characterized in that, The elastic member (123) is a spring, and the spring is sleeved outside the ferrule structure (122).

14. The optical cable connector according to claim 12, characterized in that, The plurality of ferrules (1221) are arranged in an M-row and N-column array, where M≥2 and N≥2; The number of the elastic members (123) is N, and each elastic member (123) has M ferrules (1221) therein; Alternatively, the number of the elastic members (123) is M, and each elastic member (123) has N ferrules (1221) therein.

15. The optical cable connector according to claim 14, characterized in that, The housing assembly (121) includes: A front shell (12,12), the front shell (12,12) has a first cavity (12,121); A rear shell (12,13), at least a part of the rear shell (12,13) extends into the first cavity (12,121) and is connected to the front shell (12,12); Each ferrule (1221) includes: A connecting portion (12,212), the connecting portion (12,212) is located in the first cavity (12,121); A plugging portion (12,213), the plugging portion (12,213) is connected to the connecting portion (12,212), and the plugging portion (12,213) extends out of the front end of the front shell (12,12). The elastic member (123) is sleeved on the connecting portion (12212), and one end of the elastic member (123) is connected to the ferrule (1221), and the other end of the elastic member (123) is connected to the rear housing (1213).

16. The optical cable connector according to claim 15, wherein The front housing (1212) includes M sub-front housings (12122), and the M sub-front housings (12122) are sequentially connected in the direction from the first row to the Mth row; The sub-front housing (12122) has one of the first cavities (12121), one of the elastic members (123) is disposed in the first cavity (12121), and N ferrules (1221) are inserted through the elastic member (123); Alternatively, the front housing (1212) includes N sub-front housings (12122), and the N sub-front housings (12122) are sequentially connected in the direction from the first column to the Nth column; The sub-front housing (12122) has one of the first cavities (12121), one of the elastic members (123) is disposed in the first cavity (12121), and M ferrules (1221) are inserted through the elastic member (123); 17. The optical cable connector according to claim 15, characterized in that, The front housing (1212) is of an integral structure, and a partition wall (121211) is disposed in the first cavity (12121) of the front housing (1212); The partition wall (121211) divides the first cavity (12121) into M sub-cavities (121212), and the M sub-cavities (121212) are sequentially arranged in the direction from the first row to the Mth row; One of the elastic members (123) is disposed in each of the sub-cavities (121212), and N ferrules (1221) are inserted through the elastic member (123); Alternatively, the partition wall (121211) divides the first cavity (12121) into N sub-cavities (121212), and the N sub-cavities (121212) are sequentially arranged in the direction from the first column to the Nth column; One of the elastic members (123) is disposed in the sub-cavity (121212), and M ferrules (1221) are inserted through the elastic member (123); 18. The optical fiber cable connector according to claim 16 or 17, characterized in that, The number of the rear housings (1213) is the same as the number of the M sub-front housings (12122) of the front housing (1212), or the number of the rear housings (1213) is the same as the number of the N sub-front housings (12122) of the front housing (1212); Alternatively, the number of the rear housings (1213) is the same as the number of the M sub-cavities (121212) of the front housing (1212), or the number of the rear housings (1213) is the same as the number of the N sub-cavities (121212) of the front housing (1212).

19. The optical fiber cable connector according to claim 16 or 17, characterized in that, On one side of the first end (111) of the front housing (1212) facing the main housing (110), there are a plurality of openings (12123) through which the ferrules (1221) can pass, and the ferrules (1221) respectively pass through one of the openings (12123); There are connecting ribs (12124) between two adjacent openings (12123).

20. The optical cable connector according to any one of claims 15 to 19, characterized in that, One end of the connecting part (12212) close to the plugging part (12213) has a fifth limiting part (12214), and the inside of the front shell (1212) has a sixth limiting part (12125) which cooperates with the fifth limiting part (12214); One end of the fifth limiting part (12214) abuts against the sixth limiting part (12125), and the other end of the fifth limiting part (12214) abuts against the elastic part (123).

21. The optical cable connector according to any one of claims 15 to 20, characterized in that, A first clamping groove (12126) is formed in the front shell (1212), and the rear shell (1213) has a first clamping part (12131) which cooperates with the first clamping groove (12126); The first clamping part (12131) is clamped in the clamping groove, and the front shell (1212) and the rear shell (at 1213) are connected through the cooperation of the first clamping part (12131) and the first clamping groove (12126).

22. The optical cable connector according to any one of claims 15 to 21, characterized in that One end of the rear shell (1213) far from the front shell (1212) has a second clamping part (12132), and the base (150) has a second clamping groove (154) which cooperates with the second clamping part (12132); The second clamping part (12132) is clamped in the second clamping groove (154), and the base (150) and the rear shell (1213) are connected through the cooperation of the second clamping part (12132) and the second clamping groove (154).

23. The optical cable connector according to any one of claims 15 to 22, characterized in that, The rear shell (1213) has a second cavity (12133) communicating with the first cavity (12121), and the base (150) has a third cavity (155) communicating with the second cavity (121)33); Each optical fiber in the optical cable (140) sequentially passes through the third cavity (155) and the second cavity (12133) and is respectively arranged in the through holes (12211) of each ferrule (1221).

24. The optical cable connector according to any one of claims 1 to 23, characterized in that, Further included are: A locking cap (170) sleeved on the main housing (110) and rotatably matched with the main housing (110).

25. The optical cable connector according to claim 24, characterized in that, Further included are: A seal (173) located between the main housing (110) and the locking cap (170), and the seal (173) is used to provide sealing between the main housing (110) and the locking cap (170).

26. The optical cable connector according to claim 9, wherein, Further included are: A tail sleeve (180) sleeved on the main housing (110), and the tail sleeve (180) is sleeved on at least part of the sleeve member (16%).

27. The optical cable connector according to claim 26, characterized in that, The main housing (110) has a third clamping groove (117), and the tail sleeve (180) has a third clamping part (181) which cooperates with the third clamping groove (117); The third clamping part (181) is clamped in the third clamping groove (117), and the tail sleeve (180) and the main housing (110) are connected through the cooperation of the third clamping part (181) and the third clamping groove (117).

28. The optical cable connector according to claim 9 or 26, characterized in that, The sleeve member (160) is a heat shrinkable sleeve.

29. The optical fiber cable connector according to any one of claims 12 to 23, characterized in that, The ferrule (1221) is a ceramic ferrule (1221).

30. The optical cable connector according to any one of claims 1 to 29, characterized in that, The optical cable (140) includes a cable core and an outer sheath, and the outer sheath is sleeved on the cable core; The connecting member is sleeved on the outer sheath and adhesively bonded to the outer sheath.

31. A connection box, characterized in that, It includes a housing (210) and an adapter (220). The adapter (220) is located on the housing (210), and the adapter (220) is used to cooperate with any one of the optical cable connectors described in Claims 1 to 30.

32. The connection box according to claim 31, wherein, The adapter (220) has positioning sleeves (221) with the same number as the number of ferrules (1221) in the optical cable connector, and the positioning sleeves (221) are configured to correspond to the arrangement of the ferrules (1221); Each of the positioning sleeves (221) has a positioning through hole, and both ends of the positioning through hole are respectively used for inserting the ferrule (1221).

33. An optical cable connector, characterized in that, It includes: A main housing (110), the main housing (110) includes opposite first end (111) and second end (112), and the main housing (110) has a first accommodation cavity (113) penetrating through the first end (111) and the second end (112); A ferrule assembly (120), the ferrule assembly (120) is located in the first accommodation cavity (113); An optical cable (140), the optical cable (140) is partially inserted into the main housing (110), and one end of the optical cable (140) located in the main housing (110) is connected to the ferrule assembly (120); A locking cap (170), the locking cap (170) is sleeved on the main housing (110) and is rotationally matched with the main housing (110); One of the main housing (110) and the locking cap (170) has a third limiting block (119), and the other of the main housing (110) and the locking cap (170) has a seventh limiting portion (171). A first notch (172) is formed on the seventh limiting portion (171), and the first notch (172) is used for the third limiting block (119) to pass through.

34. The optical cable connector according to claim 33, characterized in that, The third limiting block (119) is located outside the main housing (110), and the seventh limiting portion (171) is located on the inner wall of the locking cap (170) and is arranged along the circumferential direction of the inner wall.

35. The optical cable connector according to claim 34, characterized in that, The locking cap (170) is located at the first end (111) of the main housing (110), and the seventh limiting portion (171) is located on the side of the third limiting block (119) facing the first end (111).

36. The optical cable connector according to any one of claims 33 to 35, characterized in that, An opening groove (1111) is provided at the first end of the main housing (110), and the opening groove (1111) extends axially along the main housing (110) from the end of the main housing (110).

37. The optical fiber cable connector according to claim 36, wherein, A flange (1101) is provided on the outer periphery of the main housing (110), the opening groove (1111) extends to a position close to the flange (1101), and a limiting platform (175) is provided on the inner wall of the locking cap (170), and the flange (1101) abuts against the limiting platform (175).

38. The optical fiber cable connector according to claim 37, characterized in that, One of the main housing (110) and the locking cap (170) is provided with two fourth limiting blocks (176), and the two fourth limiting blocks (176) are arranged at intervals in the circumferential direction; The other of the main housing (110) and the locking cap (170) is provided with a second limiting post (1102), the second limiting post (1102) is located between the two fourth limiting blocks (176), and the second limiting post (1102) can rotate within the angular range defined by the two fourth limiting blocks (176).

39. The optical cable connector according to claim 38, wherein, The second limiting post (1102) is located on the outer wall of the flange (1101); The two fourth limiting blocks (175) are located on the inner wall of the locking cap (170), and the two fourth limiting blocks (175) are arranged at intervals along the circumferential direction of the locking cap (170).

40. The optical fiber cable connector according to claim 37, wherein The inner wall of the locking cap (170) is provided with a fifth limiting block (177), the fifth limiting block (177) is arranged along the circumferential direction of the locking cap (170), and there is a gap (1771) between the head end and the tail end of the fifth limiting block (177); The outer wall of the flange (1101) is provided with a second limiting post (1102), the second limiting post (1102) is located within the gap (1771) between the head end and the tail end of the fifth limiting block (177), and the second limiting post (1102) can rotate within the angular range defined by the head end and the tail end.

41. The optical cable connector according to claim 37, wherein, The flange (1101) is provided with a second notch, and the locking cap (170) is provided with a third limiting post; The third limiting post is located within the second notch, and the third limiting post can rotate within the angular range defined by the notch.

42. The optical cable connector according to any one of claims 33 to 35, characterized in that, The main housing (110) is of an integral structure.

43. The optical cable connector according to any one of claims 33 to 35, characterized in that, Further included is a crimping ring (101), the crimping ring (101) is sleeved on the optical cable (140) and connected to the optical cable (140); The crimping ring (101) is also sleeved on the second end (112) of the main housing (110), and the crimping ring (101) is used to press the optical cable (140) against the main housing (110).

44. The optical fiber cable connector according to claim 43, characterized in that, The optical cable (140) includes an optical cable main body and a strengthening layer sleeved on the optical cable main body, and a part of the strengthening layer is pressed between the crimping ring (101) and the main housing (110).

45. The optical cable connector according to any one of claims 33 to 35, characterized in that, Further included are: A connector (130), the connector (130) is located within the first accommodation cavity (113) and is arranged close to the second end (112), and the connector (130) is coupled to the main housing (110); A part of the optical cable (140) is inserted into the connector (130) and connected to the connector (130).

46. The optical cable connector according to claim 45, characterized in that, The connector (130) is provided with a first limiting portion (131), and the main housing (110) is provided with a second limiting portion (114); The first limiting portion (131) and the second limiting portion (114) are in mutual abutment, and the coupling relationship is formed between the connecting member (130) and the main housing (110) through the abutment of the first limiting portion (131) and the second limiting portion (114).

47. The optical cable connector according to claim 46, characterized in that, The abutting surface of the first limiting portion (131) faces the second end (112) of the main housing (110); The abutting surface of the second limiting portion (114) faces the first end (111) of the main housing (110).

48. The connector according to claim 45, wherein One of the connecting member (130) and the main housing (110) has a first limiting groove (132), and the other of the connecting member (130) and the main housing (110) has a first limiting block (115) that cooperates with the first limiting groove (132); The first limiting block (115) cooperates with the first limiting groove (132) to limit the relative rotation between the main housing (110) and the connecting member (130).

49. The optical cable connector according to any one of claims 33 to 35, characterized in that, Further included is: A base (150), and the base (150) is located in the first accommodating cavity (113) of the main housing (110); One end of the base (150) is connected to the ferrule assembly (120) and the main housing (110), and the other end of the base (150) is connected to the optical cable (140).

50. The optical cable connector according to claim 49, characterized in that, One of the main housing (110) and the base (150) has a fourth limiting portion (153); The other of the main housing (110) and the base (150) has a fourth card slot (1161), and the fourth limiting portion (153) is clamped in the fourth card slot (1161).

51. The optical fiber cable connector according to claim 49, wherein, An axial shoulder portion (157) is provided on the outer periphery of the base (150), and an elastic clamping portion (1103) is provided on the main housing (110), and the elastic clamping portion (1103) abuts against the end face of the axial shoulder portion (157).

52. The optical fiber cable connector according to any one of claims 33 to 35, characterized in that, The ferrule assembly (120) includes: A housing assembly (121), and the housing assembly (121) has a second accommodating cavity; A ferrule structure (122), and at least a part of the ferrule structure (122) is disposed in the second accommodating cavity; An elastic member (123), and the elastic member (123) is located in the second accommodating cavity. One end of the elastic member (123) abuts against the inner wall of the second accommodating cavity, and the other end of the elastic member (123) is connected to the ferrule structure (122).

53. The optical cable connector according to any one of claims 33 to 35, characterized in that, The front end of the ferrule assembly (120) protrudes from the first end (111) of the main housing (110), and the first end (111) of the main housing (110) protrudes from the front end of the locking cap (170).

54. A connection box, characterized in that, Including a housing (210) and an adapter (220), the adapter (