Optical cable connector and connection box

Abstract

The embodiment of the utility model provides an optical cable connector and a connection box, and relates to the technical field of communication, the connector comprises a main shell and an insertion core assembly located in the main shell, the connector further comprises a locking cap, the locking cap sleeves the main shell and is in running fit with the main shell, one of the main shell and the locking cap is provided with a first limiting block, and the other one of the main shell and the locking cap is provided with a second limiting block. The other one of the main shell and the locking cap is provided with a first limiting part, the first limiting part is provided with a first notch, and the first notch is used for allowing the first limiting block to penetrate through. In this way, when the locking cap and the main shell need to be assembled or disassembled, the first limiting block can be aligned with the first notch, so that the locking cap and the main shell can be assembled and disassembled conveniently. And the first limiting block and the first notch are mutually staggered by rotating the locking cap, so that the first limiting block can be limited and blocked by the first limiting part, the locking cap is prevented from being separated from the main shell, and the overall structural stability of the optical cable connector is effectively improved.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to an optical cable connector and a connection box. Background Art

[0002] Optical Distribution Network (ODN) refers to 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). ODN connects an OLT device and multiple ONU devices to provide bidirectional transmission of optical signals.

[0003] In optical distribution network projects, connection boxes (such as optical cross-connection boxes, optical distribution boxes, optical fiber splitter boxes, etc.) are usually 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 at the two ends of the adapter, the two sections of optical fiber can be connected. At present, the optical cable connector usually includes a shell, a core assembly and an optical cable located in the shell, and a locking cap is also provided on the outside of the shell. The locking cap is used to lock and cooperate with the adapter so that the optical cable connector can be tightly connected to the adapter.

[0004] However, when the optical cable connector is in use, the locking cap is easily disengaged from the housing, affecting the overall structural stability of the optical cable connector. Utility Model Content

[0005] The embodiments of the present application provide an optical cable connector and a connection box, which can effectively prevent a locking cap on the connector from falling off from a main housing, thereby effectively improving the overall structural stability of the optical cable connector.

[0006] The first aspect of the present application provides an optical cable connector, comprising a main shell, a core assembly and an optical cable, wherein the main shell comprises a first end and a second end opposite to each other, and the main shell has a first accommodating cavity penetrating the first end and the second end; the core assembly is located in the first accommodating cavity; the optical cable is partially inserted into the main shell, and one end of the optical cable located in the main shell is connected to the core assembly; the application also includes a locking cap, which is sleeved on the main shell and rotatably cooperates with the main shell; one of the main shell and the locking cap has a first limit block, and the other of the main shell and the locking cap has a first limit portion, and the first limit portion is provided with a first notch, and the first notch is used for the first limit block to pass through.

[0007] In the embodiment of the present application, a stop block is provided on one of the main housing and the locking cap, and a first stop portion with a first notch is provided on the other, so that when the locking cap and the main housing need to be assembled or disassembled, the first stop block can be aligned with the first notch to facilitate the installation and disassembly of the locking cap and the main housing. By rotating the locking cap so that the first stop block and the first notch are staggered with each other, the first stop portion can limit and block the first stop block to prevent the locking cap from falling off the main housing, thereby effectively improving the overall structural stability of the optical cable connector.

[0008] In a possible implementation, the first limiting block is located on the outside of the main shell, and the first limiting portion is located on the inner wall of the locking cap and is arranged along the circumference of the inner wall.

[0009] In a possible implementation, the locking cap is located at the first end of the main housing, and the first limiting portion is located on the side of the first limiting block facing the first end. In this way, during the use of the optical cable connector, the first limiting block can limit and resist the first limiting portion, which can effectively prevent the locking cap from moving relative to the main housing and prevent the locking cap from falling off the main housing, thereby effectively improving the structural stability of the optical cable connector.

[0010] In a possible implementation, the first end of the main housing is provided with an open groove, and the open groove extends from the end of the main housing along the axial direction of the main housing. The open groove can cooperate with the positioning key on the adapter to provide circumferential limit for the cooperation between the main housing and the adapter, so as to avoid relative rotation between the main housing and the adapter, and prevent the main housing from rotating relative to the adapter during the locking process of the locking cap, thereby effectively improving the reliability of the locking of the locking cap.

[0011] In a possible implementation, a flange is provided on the outer periphery of the main housing, the opening groove extends to a position close to the flange, the inner wall of the locking cap has a limit platform, and the flange abuts against the limit platform. The cooperation between the limit platform and the flange can provide axial positioning for the assembly between the main housing and the locking cap, which can reduce or avoid the displacement of the locking cap and the main housing during the assembly process, thereby effectively improving the assembly accuracy between the main housing and the locking cap.

[0012] In one possible implementation, one of the main shell and the locking cap has two second limit blocks, and the two second limit blocks are arranged at intervals along the circumferential direction; the other of the main shell and the locking cap has a first limit column, the first limit column is located between the two second limit blocks, and the first limit column can rotate within the angle range defined by the two second limit blocks. In this way, during the connection between the optical cable connector and the adapter, the locking cap is sleeved on the adapter, and the locking block on the locking cap enters the locking groove on the adapter. When the locking cap rotates at any angle relative to the main shell, the locking block can enter the locking groove from the opening of the locking groove, which can effectively reduce or avoid the situation where the locking cap rotates too much and the locking block and the locking groove cannot be docked, and helps to improve the accuracy of the docking between the locking block and the locking groove.

[0013] In a possible implementation, the first limiting column is located on the outer wall of the flange; the two second limiting blocks are located on the inner wall of the locking cap, and the two second limiting blocks are arranged at intervals along the circumference of the locking cap. The first limiting column located on the flange can rotate within the angle range defined by the two second limiting blocks, so as 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.

[0014] In a possible implementation, the inner wall of the locking cap has a third limit block, the third limit block is arranged along the circumference of the locking cap, and there is a gap between the head end and the tail end of the third limit block; the outer wall of the flange has a first limit column, the first limit column is located in the gap between the head end and the tail end of the third limit block, and the first limit column can rotate within the angle range defined by the head end and the tail end. The head end and the tail end of the third limit block can limit the first limit column, so that the locking cap can rotate within a specified range, so that the locking block on the locking cap can smoothly enter the locking groove on the adapter.

[0015] In a possible implementation, the flange has a second notch, and the locking cap has a third limiting column; the third limiting column is located in the second notch, and the third limiting column can rotate within the angle range defined by the notch. In this way, the locking cap can rotate relative to the main housing within a specified range, so that the locking block on the locking cap can smoothly enter the locking groove on the adapter.

[0016] In a 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.

[0017] In a possible implementation, a crimping ring is further included, which is sleeved on the optical cable and connected to the optical cable; the crimping ring is also sleeved on the second end of the main housing, and the crimping ring is used to press the optical cable onto the main housing. This can improve the firmness and reliability of the connection between the optical cable and the main housing, and help improve the overall structural stability of the optical cable connector.

[0018] In a possible implementation, the optical cable includes an optical cable body and a reinforcement layer sleeved on the optical cable body, and the reinforcement layer is partially compressed between the crimping ring and the main housing. In this way, the optical cable can be connected to the compression ring and the main housing through the reinforcement layer, which can effectively reduce or avoid 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.

[0019] In a possible implementation, it also includes: a connector, which is located in the first accommodating cavity and is arranged near the second end, and is coupled to the main housing; the optical cable portion is inserted into the connector and connected to the connector. In this way, 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, which 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 affecting the normal operation of the connector, thereby effectively improving the reliability and stability of the connector operation.

[0020] In a possible implementation, the connector has a second limiting portion, and the main housing has a third limiting portion; the second limiting portion and the third limiting portion abut against each other, and the connector and the main housing form the coupling relationship through the abutment between the second limiting portion and the third limiting portion. This can effectively reduce or avoid the external force being transmitted to the portion of the optical cable at the first end of the main housing, and can effectively reduce the tension of the optical cable inside the main housing, thereby effectively avoiding the breakage of the optical cable, preventing the breakage of the optical cable from affecting the normal operation of the connector, and effectively improving the stability and reliability of the connector operation.

[0021] In a possible implementation, the abutting surface of the second limiting portion faces the second end of the main housing; and the abutting surface of the third limiting portion faces the first end of the main housing. In this way, when the portion of the optical cable outside the main housing is subjected to a pulling force, the optical cable will drive the connector to move toward the second end of the main housing. At this time, the third limiting portion on the main housing can block the second limiting portion to limit the movement of the connector, thereby transmitting the external force on the optical cable to the main housing to prevent the portion of the optical cable located at the first end of the main housing from being subjected to a pulling force and being broken.

[0022] In a possible implementation, one of the connecting member and the main housing has a first limiting groove, and the other of the connecting member and the main housing has a fourth limiting block that matches the first limiting groove; the fourth limiting block matches the first limiting groove to limit the relative rotation between the main housing and the connecting member. This can effectively reduce or avoid the rotation of the connecting member during assembly with the main housing, reduce or avoid the rotation of the connecting member relative to the main housing to affect the normal assembly between the connecting member and the main housing, and help improve the matching accuracy between the connecting member and the main housing.

[0023] In a possible implementation, the base is further included, the base being located in the first accommodating cavity of the main housing; one end of the base is connected to the ferrule assembly and the main housing, and the other end of the base is connected to the optical cable. The base can play a connecting role between the connector and the ferrule assembly, so that the optical cable, the connector and the ferrule assembly can be assembled into an integral structure, so as to facilitate assembly with the main housing, and facilitate assembly and disassembly of the connector.

[0024] In a possible implementation, one of the main housing and the base has a first clamping portion; the other of the main housing and the base has a first clamping slot, and the first clamping portion is clamped in the first clamping slot. The cooperation between the first clamping portion and the first clamping slot can provide positioning for the base in the axial and circumferential directions of the main housing, which can reduce or avoid the displacement or separation of the base relative to the main housing, and help improve the stability and reliability of the assembly between the base and the main housing, thereby effectively improving the overall structural stability of the optical cable connector.

[0025] In a possible implementation, the base has a shoulder portion on its outer periphery, and the main housing has an elastic clamping portion, and the elastic clamping portion abuts against the end surface of the shoulder portion. The cooperation between the shoulder portion and the elastic clamping portion can achieve axial limit, which can reduce or avoid axial movement between the main housing and the base, and is conducive to improving the reliability and stability of the axial connection between the main housing and the base.

[0026] In one possible implementation, the core insert assembly includes a shell assembly, a core insert structure and an elastic member, the shell assembly has a second accommodating cavity; the core insert structure is at least partially inserted into the second accommodating cavity; the elastic member 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 core insert structure.

[0027] The elastic part can provide elastic buffer between the core structure and the shell assembly, which can reduce or avoid rigid impact between the core structure and the shell assembly, prevent rigid contact between the core structure and the shell assembly from affecting the tightness of the connection between the core structure and the shell assembly, and help improve the tightness of the connection between the core structure and the shell assembly.

[0028] Moreover, during the process of connecting the connector with the adapter on the connection box, the two core structures are docked in the adapter. Under the docking force of the other core structure, the core structure can generate an extrusion force on the elastic part, so that the elastic part is in a compressed state. The elastic part in the compressed state has a rebound force, and the rebound force can drive the core structure to be squeezed toward the other core structure, so that the two core structures can fit closely to each other, which can effectively improve the stability of the docking between the two core structures, thereby effectively improving the transmission efficiency of the optical signal.

[0029] In a possible implementation, the front end of the ferrule assembly protrudes from the first end of the main housing, which makes it easy to clean the end face of the ferrule assembly. The first end of the main housing protrudes from the front end of the locking cap, which makes it easy to observe the fit between the main housing and the adapter 220, which is conducive to improving the accuracy of the fit between the main housing and the adapter.

[0030] A second 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

[0031] Figure 1 A schematic diagram of the structure of an optical cable connector provided in an embodiment of the present application;

[0032] Figure 2 An exploded view of an optical cable connector provided in an embodiment of the present application;

[0033] Figure 3 A schematic diagram of the structure of a main housing provided in an embodiment of the present application at a viewing angle;

[0034] Figure 4 A cross-sectional view of a locking cap provided in an embodiment of the present application;

[0035] Figure 5 A cross-sectional view of an optical cable connector provided in an embodiment of the present application in a cross section;

[0036] Figure 6 A schematic diagram of the structure of a connector provided in an embodiment of the present application;

[0037] Figure 7 A cross-sectional view of a main housing provided in an embodiment of the present application;

[0038] Figure 8 A schematic diagram of the structure of a main housing provided in an embodiment of the present application from another perspective;

[0039] Fig. 9 A schematic diagram of the structure of a locking cap provided in an embodiment of the present application;

[0040] Fig.10 A schematic diagram of the structure of a main housing and a locking cap in cooperation with each other provided in an embodiment of the present application;

[0041] Fig.11 A schematic diagram of the structure of another locking cap provided in an embodiment of the present application;

[0042] Fig.12 An exploded view of another optical cable connector provided in an embodiment of the present application;

[0043] Fig.13 A schematic diagram of a structure of a main housing and a base connected to each other provided in an embodiment of the present application;

[0044] Fig.14 A schematic diagram of the structure of a base provided in an embodiment of the present application;

[0045] Fig.14A for Fig.13 Enlarged view of area A in the middle;

[0046] Fig.15 A schematic diagram of the structure of another base provided in an embodiment of the present application;

[0047] Fig.16 A schematic diagram of the structure of another main housing provided in an embodiment of the present application;

[0048] Fig.17 A cross-sectional view of another main housing provided in an embodiment of the present application;

[0049] Fig.18 A schematic diagram of the structure of a ferrule assembly provided in an embodiment of the present application;

[0050] Fig.19 A schematic diagram of the structure of an 8-core connector provided in an embodiment of the present application at a viewing angle;

[0051] Fig. 20 A schematic diagram of the structure of an 8-core connector provided in an embodiment of the present application from another perspective;

[0052] Fig.21 A cross-sectional view of a ferrule assembly provided in an embodiment of the present application;

[0053] Fig. 22A cross-sectional view of a housing assembly and a base provided in an embodiment of the present application;

[0054] Fig.23 A cross-sectional view of an optical cable connector provided in an embodiment of the present application under another cross-section;

[0055] Fig.24 A schematic diagram of the structure of a connection box provided in an embodiment of the present application.

[0056] Description of reference numerals:

[0057] 100-optical cable connector;

[0058] 110-main housing; 111-first end; 112-second end; 113-first accommodating cavity; 114-first limiting block;

[0059] 115-flange; 116-first limiting column; 117-third limiting portion; 118-fourth limiting block;

[0060] 119 - first card slot; 1110 - elastic card connection portion; 1111 - opening slot;

[0061] 120-insert assembly; 121-housing assembly; 1211-second accommodating cavity; 1212-front shell; 12121-first cavity;

[0062] 12122 - second card slot; 1213 - rear shell; 12131 - second card connection portion; 12132 - second cavity;

[0063] 12133-third clamping portion; 122-insertion core structure; 1221-insertion core; 12211-through hole; 12212-connecting portion;

[0064] 12213-plug-in part; 123-elastic member;

[0065] 130-locking cap; 131-first limiting portion; 132-first notch; 133-limiting platform; 134-second limiting block;

[0066] 135-third limit block; 1351-interval; 136-locking block;

[0067] 140-optical cable;

[0068] 150-crimp ring;

[0069] 160-connecting member; 161-second limiting portion; 162-first limiting groove; 163-connecting hole;

[0070] 170-base; 171-first clamping portion; 172-shaft shoulder; 173-third cavity; 174-third clamping slot; 175-connecting column; 176-window;

[0071] 180-tube fittings; 190-tail sleeve;

[0072] 200-connection box; 210-housing; 220-adapter. DETAILED DESCRIPTION

[0073] 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.

[0074] In optical distribution network engineering, optical cross-connection boxes, optical distribution boxes, optical fiber splitter boxes and other equipment usually cooperate with the connector on the optical fiber through the adapter on them to achieve the docking of the optical fiber and the connection box. In the related art, the optical cable connector usually includes a housing, a ferrule assembly and an optical cable located in the housing, and a locking cap is also provided on the outside of the housing. The locking cap is used to lock and cooperate with the adapter so that the optical cable connector can be tightly connected with the adapter.

[0075] However, when the optical cable connector is in use, the locking cap is easily disengaged from the housing, affecting the overall structural stability of the optical cable connector.

[0076] In order to solve the above problems, researchers have improved the structure of the optical cable connector by setting a limit block on one of the main housing and the locking cap, and setting a first limit part with a first notch on the other, so that when the locking cap and the main housing need to be assembled or disassembled, the first limit block can be aligned with the first notch to facilitate the installation and disassembly of the locking cap and the main housing. By rotating the locking cap to stagger the first limit block and the first notch, the first limit part can limit and block the first limit block to prevent the locking cap from falling off the main housing, thereby effectively improving the overall structural stability of the optical cable connector.

[0077] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0078] Figure 1 A schematic diagram of the structure of an optical cable connector provided in an embodiment of the present application is shown in FIG. Figure 2 An exploded view of an optical cable connector provided in an embodiment of the present application, Figure 3A schematic diagram of the structure of a main housing provided in an embodiment of the present application at a viewing angle, Figure 4 A cross-sectional view of a locking cap provided in an embodiment of the present application.

[0079] The embodiment of the present application provides an optical cable connector 100, which can be used with a connection box 200 (see below). Fig.24 ) to achieve signal transmission.

[0080] See also Figure 1 and Figure 2 As shown, the optical cable connector 100 may include a main housing 110, a ferrule assembly 120, and an optical cable 140, wherein the main housing 110 may include a first end 111 and a second end 112 opposite to each other, and a first accommodating cavity 113 may be provided in the main housing 110, which passes through the first end 111 and the second end 112. The ferrule assembly 120 may be located in the first accommodating cavity 113 of the main housing 110 and connected to the main housing 110, the optical cable 140 may be partially inserted in the main housing 110, and one end of the optical cable 140 located in the main housing 110 may be connected to the ferrule assembly 120. For example, the optical cable 140 may have an optical fiber, and the optical fiber may be connected to the ferrule assembly 120.

[0081] The ferrule assembly 120 can be disposed near the first end 111, and the optical cable connector 100 and the connection box 200 (see below) Fig.24 ), the first end 111 of the main housing 110 can be connected to the adapter 220 on the connection box (see below). Fig.24 ), for example, the first end 111 of the main housing 110 can be inserted into the adapter 220, so that the ferrule assembly 120 located at the first end 111 of the main housing 110 can be mated with the adapter 220 (see below). Fig.24 ) are matched with each other so that the optical fiber in the ferrule assembly 120 can be docked with another optical fiber in the adapter 220 to realize the transmission of optical signals.

[0082] The optical cable connector 100 may further include a locking cap 130, which may be sleeved on the main housing 110 and rotatably matched with the main housing 110. The locking cap 130 may be matched with a structure on the adapter so that the connector 100 may be connected to the adapter 220. For example, a locking block 136 may be provided on the inner wall of the locking cap 130, and the locking block 136 may be matched with a locking groove on the adapter so that the optical cable connector 100 may be locked on the adapter. The opening of the locking groove on the adapter may be horn-shaped so that the locking block 136 on the locking cap 130 may enter the locking groove from the horn-shaped opening.

[0083] Among them, see Figure 3 and Figure 4As shown, one of the main housing 110 and the locking cap 130 may have a first limiting block 114, and the other of the main housing 110 and the locking cap 130 may have a first limiting portion 131, which may be arranged along the circumference of the main housing 110 or the locking cap 130. The first limiting portion 131 may have a first notch 132, which may be used for the first limiting block 114 to pass through.

[0084] For example, when the first limiting block 114 is aligned with the first limiting portion 131, the locking cap 130 can be disengaged from the main housing 110, so that the locking cap 130 is separated from the main housing 110. On the contrary, when the first limiting block 114 is not aligned with the first notch 132 on the first limiting portion 131, the first limiting portion 131 can play a limiting and blocking role on the first limiting block 114, so as to prevent the locking cap 130 from moving in the axial direction of the main housing 110. When the locking cap 130 is assembled with the main housing 110, the staff can align the first limiting block 114 with the first notch 132, so as to prevent the first limiting portion 131 from blocking the first limiting block 114, so that the locking cap 130 can be assembled on the main housing 110. After the first limit block 114 passes through the first notch 132, the locking cap 130 can be rotated to misalign the first limit block 114 with the first notch 132, so that the first limit portion 131 can block the first limit block 114, thereby preventing the locking cap 130 from falling off the main shell 110, thereby completing the assembly between the locking cap 130 and the main shell 110.

[0085] When the locking cap 130 needs to be removed from the main shell 110, the locking cap 130 can be rotated and the first limit block 114 can be aligned with the first notch 132, so that the first limit portion 131 loses its limiting effect on the first limit block 114, 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.

[0086] Compared with the connector solution in the related art, the embodiment of the present application provides a first limit block 114 on one of the main housing 110 and the locking cap 130, and provides a first limit portion 131 with a first notch 132 on the other, so that when the locking cap 130 and the main housing 110 need to be assembled or disassembled, the first limit block 114 can be aligned with the first notch 132 to facilitate the installation and disassembly of the locking cap 130 and the main housing 110. By rotating the locking cap 130 to stagger the first limit block 114 and the first notch 132, the first limit portion 131 can limit and block the first limit block 114 to prevent the locking cap 130 from falling off the main housing 110, thereby effectively improving the overall structural stability of the optical cable connector 100.

[0087] For example, see Figure 3 and Figure 4 As shown, the first limit block 114 can be as follows Figure 3 As shown, the first limiting portion 131 is located outside the main housing 110. Figure 4 As shown, the first notch 132 is located on the inner wall of the locking cap 130 and is arranged along the circumference of the inner wall of the locking cap 130 . The first notch 132 can be located on the inner wall of the locking cap 130 .

[0088] Alternatively, the first limiting block 114 can also be set on the inner wall of the locking cap 130, the first limiting portion 131 can be located on the outer periphery of the main shell 110 and arranged along the circumference of the main shell 110, and the first notch 132 can be located on the outer side of the main shell 110.

[0089] Continue to see Figure 1 As shown, the front end of the ferrule assembly 120 can protrude from the first end 111 of the main shell 110, which can facilitate the cleaning of the end face of the ferrule assembly 120 to reduce or avoid dust and other stains falling into the front end of the ferrule assembly 120 and affecting 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.

[0090] The first end 111 of the main shell 110 can protrude from the front end of the locking cap 130, which can reduce or avoid the blocking of the first end 111 of the main shell 110 by the locking cap 130. During the connection of the main shell 110 with the adapter 220, the fit between the main shell 110 and the adapter 220 can be easily observed, which is conducive to improving the accuracy of the fit between the main shell 110 and the adapter 220.

[0091] Continue to see Figure 3 As shown, an opening groove 1111 may be provided on the first end 111 of the main housing 110, and the opening groove 1111 may extend from the end of the main housing 110 along the axial direction of the main housing 110. The opening groove 1111 may cooperate with the positioning key on the adapter 220. For example, a slot may be provided on the adapter 220, and the positioning key may be arranged in the slot. During the cooperation 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 be inserted into the opening groove 1111 of the main housing 110. The cooperation between the opening groove 1111 and the positioning key may provide circumferential limit for the cooperation between the main housing 110 and the adapter 220, so as to avoid relative rotation between the main housing 110 and the adapter 220, and prevent the main housing 110 from rotating relative to the adapter 220 during the locking process of the locking cap 130, thereby effectively improving the reliability of the locking of the locking cap 130.

[0092] 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 .

[0093] Continue to see Figure 3 As shown, a flange 115 may also be provided on the outer periphery of the main housing 110, see Figure 4 As shown, the inner wall of the locking cap 130 may be provided with a limit platform 133, and the flange 115 may abut against the limit platform 133. During the assembly process of the main housing 110 and the locking cap 130, the locking cap 130 is sleeved on the main housing 110 from the second end 112 of the main housing 110 along the x direction. When the limit platform 133 on the locking cap 130 abuts against the flange 115 on the main housing 110, it means that the locking cap 130 moves to a suitable position in the axial direction of the main housing 110. At this time, the movement of the locking cap 130 in the axial direction of the main housing 110 can be stopped, and then the locking cap 130 is rotated to displace the first limit block 114 and the first notch 132.

[0094] The cooperation between the limit platform 133 and the flange 115 can provide axial positioning for the assembly between the main shell 110 and the locking cap 130, which can reduce or avoid the displacement of the locking cap 130 and the main shell 110 during the assembly process, thereby effectively improving the assembly accuracy between the main shell 110 and the locking cap 130.

[0095] The opening slot 1111 may extend to a position close to the flange 115 , so that the length of the opening slot may be increased to ensure sufficient docking between the main housing and the adapter.

[0096] Figure 5 A cross-sectional view of an optical cable connector provided in an embodiment of the present application at a certain cross section.

[0097] See also Figure 5 As shown, the locking cap 130 may be located at the first end 111 of the main housing 110. When the first limiting block 114 is located at the outer side of the main housing 110 and the first limiting portion 131 is located at the inner wall of the locking cap 130, the first limiting portion 131 may be located at the side of the first limiting block 114 facing the first end 111 of the main housing 110. For example, see Figure 5 As shown, during the assembly process of the main shell 110 and the locking cap 130, the locking cap 130 can be sleeved on the main shell 110 from the second end 112 of the main shell 110 along the x direction in the figure, and then the first limit block 114 on the main shell 110 passes through the first notch 132 on the inner wall of the locking cap 130, and the first limit portion 131 is located on the side of the first limit block 114 facing the first end 111 of the main shell 110.

[0098] In this way, during the use of the optical cable connector 100, the first limit block 114 can limit the first limit portion 131, which can effectively prevent the locking cap 130 from moving in the opposite direction of x in the figure relative to the main shell 110, and prevent the locking cap 130 from escaping from the main shell 110, thereby effectively improving the structural stability of the optical cable connector 100.

[0099] Continuing with reference to FIG. 5 , the optical cable connector 100 may include a connector 160. The connector 160 may be located in the first accommodating cavity 113 of the main shell 110 and disposed near the second end 112 of the main shell 110. The connector 160 and the main shell 110 may be coupled to each other. For example, limiting structures may be provided on the connector 160 and the main shell 110, respectively. The two limiting structures may cooperate with each other so that a limiting fit may be formed between the connector 160 and the main shell 110, thereby achieving coupling between the connector 160 and the main shell 110.

[0100] 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 housing 110 through the connector 160 to avoid being transmitted to the end of the optical cable 140 connected to the ferrule assembly 120, which 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 housing 110 and the end of the optical cable 140 connected to the ferrule assembly 120, prevent the optical fiber of the optical cable 140 located in the main housing 110 from being broken due to the tension, and avoid the breakage of the optical fiber from affecting the normal operation of the connector, thereby effectively improving the reliability and stability of the connector operation.

[0101] For example, see Figure 5 As shown, the connecting member 160 may have a second limiting portion 161, and the main shell 110 may have a third limiting portion 117. The second limiting portion 161 may abut against the third limiting portion 117, and the above-mentioned coupling relationship may be formed between the connecting member 160 and the main shell 110 through the abutment between the second limiting portion 161 and the third limiting portion 117.

[0102] 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 160, the external force can be transmitted to the connector 160 through the portion of the optical cable 140 located at the second end 112 of the main housing 110, and the connector 160 and the main housing 110 can transmit force through the abutment of the second limiting portion 161 and the third limiting portion 117, so as to transmit the external force to the main housing 110. In this way, the transmission of external force to the portion of the optical cable 140 located at the first end 111 of the main housing 110 can be effectively reduced or avoided, and the tension of the optical cable 140 located inside the main housing 110 can be effectively reduced, thereby effectively avoiding the breakage of the optical cable 140, preventing the breakage of the optical cable 140 from affecting the normal operation of the connector, and effectively improving the stability and reliability of the operation of the connector.

[0103] Among them, continue to see Figure 5 As shown, the abutting surface of the second limiting portion 161 may face the second end 112 of the main housing 110, and the abutting surface of the third limiting portion 117 may face the first end 111 of the main housing 110. Figure 5 As shown, the second stopper 161 can be arranged near one side of the first end 111 of the main housing 110, and the third stopper 117 can be arranged near the second end 112 of the main housing 110. In this way, when the portion of the optical cable 140 outside the main housing 110 is subjected to a pulling force, the optical cable 140 will drive the connector 160 to move toward the second end 112 of the main housing 110, that is, even if the connector 160 moves along the Figure 5 At this time, the third limiting portion 117 on the main housing 110 can block the second limiting portion 161 to limit the movement of the connector 160 in the x direction, thereby transferring the external force on the optical cable 140 to the main housing 110 to prevent the portion of the optical cable 140 located at the first end 111 of the main housing 110 from being pulled and broken.

[0104] Among them, the mating surface between the second limiting portion 161 and the third limiting portion 117 can be made perpendicular to the axial direction of the main shell 110, which can improve the firmness of the fit between the second limiting portion 161 and the third limiting portion 117, and can effectively reduce or avoid the separation between the second limiting portion 161 and the third limiting portion 117, and can prevent the separation between the second limiting portion 161 and the third limiting portion 117 and affect the force transmission between the connecting member 160 and the main shell 110, thereby effectively improving the stability of the fit between the connecting member 160 and the main shell 110.

[0105] Continue to see Figure 5As shown, the optical cable connector 100 may further include a base 170, which may be located in the first accommodating cavity 113 of the main housing 110, one end of the base 170 may be connected to the ferrule assembly 120 and the main housing 110, and the other end may be connected to the optical cable 140. The connector 160 may be connected to the ferrule assembly 120 through the base 170, and the optical cable 140 may pass through the base 170 and be connected to the ferrule assembly 120. The base 170 may play a connecting role between the connector 160 and the ferrule assembly 120, so that the optical cable 140, the connector 160 and the ferrule assembly 120 may be assembled into an integral structure, so as to facilitate assembly with the main housing 110, and facilitate assembly and disassembly of the optical cable connector 100.

[0106] Figure 6 A schematic diagram of the structure of a connector provided in an embodiment of the present application is shown in FIG. Figure 7 A cross-sectional view of a main shell provided in an embodiment of the present application.

[0107] Continue to see Figure 5 As shown, a connecting column 175 may be provided on one end of the base 170 facing the connecting member 160, Figure 6 As shown, the connector 160 may be provided with a connection hole 163 that matches the connection column 175, the connection column 175 may be inserted into the connection hole 163, and the connector 160 and the base 170 may be connected to each other through the matching between the connection column 175 and the connection hole 163. This can reduce the possibility of separation between the connector 160 and the base 170, help improve the reliability and stability of the connection between the connector 160 and the base 170, and enhance the stability of the internal structure of the connector.

[0108] See also Figure 6 and Figure 7 As shown, one of the connecting member 160 and the main housing 110 may have a first limiting groove 162, and the other of the connecting member 160 and the main housing 110 may have a fourth limiting block 118 that matches the first limiting groove 162. For example, the first limiting groove 162 may be as shown in FIG. Figure 6 As shown in FIG. 1 , the fourth limit block 118 is opened on the outer side of the connecting member 160. Figure 7 As shown, it is located on the inner wall of the main housing 110. Alternatively, the first limiting groove 162 may be opened on the inner wall of the main housing 110, and the fourth limiting block 118 may be arranged on the outer side of the connecting member 160. The following description is made by taking the first limiting groove 162 being located on the connecting member 160 and the fourth limiting block 118 being located on the main housing 110 as an example.

[0109] The fourth limiting block 118 can cooperate with the first limiting groove 162 to limit the relative rotation between the main housing 110 and the connecting member 160. The cooperation between the first limiting groove 162 and the fourth limiting block 118 can play a limiting role in the assembly between the connecting member 160 and the main housing 110. For example, the first limiting groove 162 on the connecting member 160 can have an opening, and during the assembly of the connecting member 160 and the main housing 110, the fourth limiting block 118 on the main housing 110 can be inserted into the first limiting groove 162 and move along the first limiting groove 162 until the second limiting portion 161 and the third limiting portion 117 abut against each other, indicating that the connecting member 160 is installed to a suitable position. This can effectively reduce or avoid rotation of the connecting member 160 during assembly with the main shell 110, and can reduce or avoid rotation of the connecting member 160 relative to the main shell 110 and affect normal assembly between the connecting member 160 and the main shell 110, which is beneficial to improving the matching accuracy between the connecting member 160 and the main shell 110.

[0110] Figure 8 A schematic diagram of the structure of a main housing provided in an embodiment of the present application from another perspective, Fig. 9 A schematic diagram of the structure of a locking cap provided in an embodiment of the present application is shown in FIG. Fig.10 A schematic diagram of the structure of a main shell and a locking cap in cooperation with each other provided in an embodiment of the present application.

[0111] Continue to see Figure 8 and Fig. 9 As shown, one of the main housing 110 and the locking cap 130 may have two second limit blocks 134, and the two second limit blocks 134 may be arranged at intervals 1351 along the circumferential direction. The other of the main housing 110 and the locking cap 130 may have a first limit column 116, combined with Fig.10 As shown, the first limiting column 116 may be located between the two second limiting blocks 134 , and the first limiting column 116 may be able to rotate within the angle range defined by the two second limiting blocks 134 .

[0112] The two second limiting blocks 134 can limit the first limiting column 116, so that the first limiting column 116 rotates in the space formed by the two second limiting blocks 134, so that the locking cap 130 and the main housing 110 are transmitted within a specified angle range. In this way, during the connection between the optical cable connector 100 and the adapter, the locking cap 130 is sleeved on the adapter, and the locking block 136 on the locking cap 130 enters the locking groove on the adapter. When the locking cap 130 rotates at any angle relative to the main housing 110, the locking block 136 can enter the locking groove through the opening of the locking groove, which can effectively reduce or avoid the situation where the locking cap 130 rotates too much and the locking block 136 cannot be docked with the locking groove, which helps to improve the accuracy of the docking between the locking block 136 and the locking groove.

[0113] For example, see Figure 8 and Fig. 9 As shown, the first limiting column 116 can be located on the main housing 110, for example, the first limiting column 116 can be located on the outer wall of the flange 115, and the two second limiting blocks 134 can be located on the inner wall of the locking cap 130, and the two second limiting blocks 134 can be arranged along the circumference of the locking cap 130. The first limiting column 116 located on the flange 115 can rotate within the angle range defined by the two second limiting blocks 134. To define the rotation range of the locking cap 130, the locking block 136 on the locking cap 130 can smoothly enter the locking groove on the adapter.

[0114] Alternatively, in some examples, the first limiting column 116 may also be located on the inner wall of the locking cap 130, and the two second limiting blocks 134 may be located on the main housing 110, for example, the two second limiting blocks 134 may be located on the outer wall of the flange 115. The first limiting column 116 located on the locking cap 130 may rotate within the angle range defined by the two second limiting blocks 134. The rotation range of the locking cap 130 is defined, so that the locking block 136 on the locking cap 130 may smoothly enter the locking groove on the adapter.

[0115] Fig.11 A schematic structural diagram of another locking cap provided in an embodiment of the present application.

[0116] In another possible implementation, see Fig.11 As shown, the inner wall of the locking cap 130 may further include a third limiting block 135, which may be arranged along the circumference of the locking cap 130, and a gap 1351 is provided between the head end and the tail end of the third limiting block 135. The first limiting column 116 on the flange 115 may be located within the gap 1351 between the head end and the tail end of the third limiting block 135, and the first limiting column 116 may rotate within the angle range defined by the head end and the tail end of the third limiting block 135.

[0117] The first end and the rear end of the third limiting block 135 can limit the first limiting column 116 so that the locking cap 130 can rotate within a specified range, so that the locking block 136 on the locking cap 130 can smoothly enter the locking groove on the adapter.

[0118] Alternatively, in another possible implementation, a second notch (not shown in the figure) may be provided on the flange 115, and a third limiting post (not shown in the figure) may be provided on the locking cap 130, the third limiting post may be located in the second notch, and the third limiting post may rotate within the angle range defined by the notch. In this way, the locking cap 130 may rotate relative to the main housing 110 within a specified range, so that the locking block 136 on the locking cap 130 may smoothly enter the locking groove on the adapter.

[0119] 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.

[0120] Fig.12 An exploded view of another optical cable connector provided in an embodiment of the present application.

[0121] See also Fig.12 As shown, in a possible implementation, the optical cable connector 100 may include a crimping ring 150, which may be sleeved on the optical cable 140 and connected to the optical cable 140, and the crimping ring 150 may also be sleeved on the second end 112 of the main housing 110, and the crimping ring 150 may be used to press the optical cable 140 onto the main housing 110. For example, the crimping ring 150 may be crimped onto the optical cable 140 by mechanical crimping, and then crimped onto the main housing 110, so that the optical cable 140 is connected to the main housing 110 through the crimping ring 150. In this way, the firmness and reliability of the connection between the optical cable 140 and the main housing 110 can be improved, which helps to improve the overall structural stability of the optical cable connector 100.

[0122] For example, the optical cable 140 may include an optical cable 140 body and a reinforcement layer (not shown) sleeved on the optical cable 140 body. For example, the reinforcement layer may be aramid, and the reinforcement layer may be partially compressed between the crimping ring 150 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.

[0123] Fig.13 A schematic diagram of a structure of a main housing and a base connected to each other provided in an embodiment of the present application. Fig.14 A schematic diagram of the structure of a base provided in an embodiment of the present application, Fig.14A for Fig.13 Magnified view of area A in the middle.

[0124] See also Fig.13 Shown and Fig.14 As shown, one of the main housing 110 and the base 170 may have a first clamping portion 171, and the other of the main housing 110 and the base 170 may have a first clamping slot 119. Fig.14A As shown, the first clamping portion 171 can be clamped in the first clamping slot 119. For example, the first clamping portion 171 can be arranged on the base 170 as shown in the figure, and the first clamping slot 119 can be provided on the main housing 110, or the first clamping portion 171 can be arranged on the main housing 110, and the first clamping slot 119 can be provided on the base 170. In the embodiment of the present application, the first clamping portion 171 is arranged on the base 170, and the first clamping slot 119 is provided on the main housing 110 as an example for description.

[0125] The cooperation between the first clamping portion 171 and the first clamping groove 119 can provide axial and circumferential positioning for the base 170 in the main shell 110, which can reduce or avoid the displacement or separation of the base 170 relative to the main shell 110, and help improve the stability and reliability of the assembly between the base 170 and the main shell 110, thereby effectively improving the overall structural stability of the optical cable connector 100.

[0126] Continue to see Fig.14 As shown, a window 176 may also be provided on the base 170. For example, a portion of the upper half of the base 170 may be removed along the diameter direction of the base 170 to form a window 176 on the base 170. The window 176 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 176 to reduce or avoid damage to the optical cable 140 inside the base 170, and prevent damage to the optical cable 140 from affecting the normal operation of the connector.

[0127] Fig.15 A schematic diagram of the structure of another base provided in an embodiment of the present application, Fig.16 This is a schematic diagram of the structure of another main housing provided in an embodiment of the present application. Fig.17 A cross-sectional view of another main shell provided in an embodiment of the present application.

[0128] Or, in another embodiment, see Fig.15 As shown, the base 170 may have a shoulder portion 172 on its outer periphery, see Fig.16 and Fig.17As shown, the main housing 110 may have an elastic clamping portion 1110, and the elastic clamping portion 1110 may abut against the end surface of the shaft shoulder portion 172. For example, the elastic clamping portion 1110 may face the inside of the main housing 110. When the base 170 is inserted into the main housing 110, when the elastic clamping portion 1110 abuts against the end surface of the shaft shoulder portion 172, it indicates that the main housing 110 and the base 170 have reached a matching position. The matching between the shaft shoulder portion 172 and the elastic clamping portion 1110 can achieve position limiting in the axial direction, which can reduce or avoid the axial movement between the main housing 110 and the base 170, and is conducive to improving the reliability and stability of the axial connection between the main housing 110 and the base 170.

[0129] Fig.18 A schematic diagram of the structure of a ferrule assembly provided in an embodiment of the present application is shown in FIG. Fig.19 A schematic diagram of the structure of an 8-core connector provided in an embodiment of the present application at a viewing angle, Fig. 20 A schematic diagram of the structure of an 8-core connector provided in an embodiment of the present application from another perspective, Fig.21 A cross-sectional view of a ferrule assembly provided in an embodiment of the present application.

[0130] See also Fig.18 As shown, in the embodiment of the present application, the ferrule assembly 120 may include a housing assembly 121, a ferrule structure 122 and an elastic member 123 (see Fig.21 ), wherein the housing assembly 121 may include a second accommodating cavity 1211, and the ferrule assembly 120 and the elastic member 123 may both be located in the second accommodating cavity 1211. 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, which may reduce or avoid the rigid impact between the ferrule structure 122 and the housing assembly 121, prevent the 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 help improve the tightness of the connection between the ferrule structure 122 and the housing assembly 121.

[0131] Moreover, during the process of connecting the connector 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 against 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.

[0132] The ferrule structure 122 may include one or more ferrules 1221, and the plurality of ferrules 1221 may be arranged in an array in the form of M rows and N columns, wherein M≥2, 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, etc. For example, see Fig.18 As shown, in some examples, M can be equal to 2, N can also be equal to 2, and the four ferrules 1221 can be as shown in FIG. Fig.18 As shown, the array is arranged in 2 rows and 2 columns. Or, in other examples, see Fig.19 and Fig. 20 As shown, M can be equal to 2, N can be equal to 4, and the 8 ferrules 1221 can be arranged in an array in 2 rows and 4 columns as shown in the figure. This can effectively increase the number of ferrules 1221 in the connector, thereby effectively increasing the signal transmission capacity of the connector.

[0133] See also Fig.21 As shown, each ferrule 1221 may have a through hole 12211, and the optical cable 140 may include a plurality of optical fibers, and the plurality of optical fibers may be respectively inserted into the through holes 12211 of the ferrules 1221. When the optical cable connector 100 is docked with the adapter, the ferrules 1221 in the two connectors 100 may dock with each other, so that the optical fibers in the ferrules 1221 may dock, thereby realizing the transmission of optical signals.

[0134] Among them, 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 with the arrangement of one elastic member 123 on one ferrule 1221, this arrangement can effectively reduce the number of elastic members 123 in the connector, reduce the space occupied by the elastic member 123 in the connector, and is conducive to improving the miniaturization design of the connector.

[0135] Moreover, compared with setting 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, and the elastic member 123 can be easily set in the housing assembly 121. In addition, by connecting at least two ferrules 1221 to one elastic member 123, several ferrules 1221 set on the same elastic member 123 can have a better synchronization rate during the expansion and contraction process relative to the housing assembly 121, and the uniformity of the expansion and contraction of each ferrule 1221 can be improved, thereby effectively improving the stability of the connector and the adapter.

[0136] The elastic member 123 may be a spring, and the spring may be sleeved outside the plug core 1221. For example, more than two plug cores 1221 may be inserted into one spring to reduce the number of springs, thereby improving the miniaturization design of the connector.

[0137] Continue to see Fig.21 As shown, 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, and 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, wherein the connecting portion 12212 may be located in the first cavity 12121, and the plug-in portion 12213 may extend out of the front end of the front shell 1212 to dock with the adapter. The elastic member 123 may be sleeved on the connecting portion 12212 of the ferrule 1221, and 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.

[0138] For example, one end of the elastic member 123 can abut against the plug core 1221, and the other end can abut against the rear shell 1213. The elastic member 123 can be in a compressed state between the plug core 1221 and the rear shell 1213, so that the elastic member 123 can exert a clamping force on the plug core 1221, so that the plug core 1221 can be more closely docked with another plug core 1221 during the process of mating with the adapter.

[0139] Continue to see Fig.21As shown, a second card slot 12122 may be provided on the front shell 1212, and a second card connection portion 12131 matching the second card slot 12122 may be provided on the rear shell 1213, and the second card connection portion 12131 may be clamped in the second card slot 12122, so that the front shell 1212 and the rear shell 1213 can be connected through the cooperation between the second card connection portion 12131 and the second card slot 12122. The connection is reliable, the structure is simple, and the operation is convenient. The front shell 1212 and the rear shell 1213 can be effectively prevented from being separated, and the reliability and firmness of the connection between the front shell 1212 and the rear shell 1213 can be improved. Moreover, it is also helpful to improve the assembly efficiency between the front shell 1212 and the rear shell 1213, and improve the production efficiency of the connector.

[0140] Alternatively, in some examples, the setting positions of the second card slot 12122 and the second card connecting portion 12131 can also be interchanged. For example, the second card slot 12122 can be set on the rear shell 1213, and the second card connecting portion 12131 can be set on the front shell 1212, and the connection between the front shell 1212 and the rear shell 1213 is achieved through the cooperation between the second card connecting portion 12131 and the second card slot 12122.

[0141] Fig. 22 A cross-sectional view of a shell assembly and a base provided in an embodiment of the present application.

[0142] Among them, see Fig. 22 As shown, the rear shell 1213 may have a second cavity 12132 communicating with the first cavity 12121, the base 170 may have a third cavity 173 communicating with the second cavity 12132, and the optical fiber in the optical cable 140 may sequentially pass through the third cavity 173 of the base 170 and the second cavity 12132 of the rear shell 1213 and respectively pass through the through holes 12211 of each ferrule 1221. The optical fiber can be connected to the optical fiber in the connector at the other end of the adapter through the ferrule 1221 to achieve transmission of optical signals.

[0143] Continue to see Fig. 22As shown, the rear shell 1213 may have a third clamping portion 12133 on one end away from the front shell 1212, and the base 170 may have a third clamping groove 174 that matches the third clamping portion 12133, and the third clamping portion 12133 may be clamped in the third clamping groove 174. For example, the third clamping portion 12133 and the second clamping portion 12131 may be arranged opposite to each other, one end of the rear shell 1213 may be connected to the front shell 1212 through the second clamping portion 12131, and the other end may be connected to the base 170 through the third clamping portion 12133, so that the housing assembly 121 is connected to the rear shell 1213. In this way, the firmness and reliability of the connection between the front shell 1212, the rear shell 1213 and the base 170 can be improved, and the separation between the base 170 and the rear shell 1213 and the front shell 1212 can be effectively prevented, which helps to improve the overall structural stability of the internal components of the connector.

[0144] Among them, the setting positions of the third card slot 174 and the third card connecting portion 12133 can also be interchanged. For example, the third card slot 174 can be set on the rear shell 1213, and the third card connecting portion 12133 can be set on the base 170. The connection between the rear shell 1213 and the base 170 can still be achieved through the cooperation between the third card connecting portion 12133 and the third card slot 174.

[0145] Fig.23 A cross-sectional view of an optical cable connector provided in an embodiment of the present application under another cross-section.

[0146] See also Fig.23 As shown, the connector may further include a sleeve member 180, one end of which may be sleeved on the second end 112 of the main housing 110 and connected to the main housing 110, and the other end of which may be sleeved on 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 180. Thus, when the portion of the optical cable 140 located outside the main housing 110 is pulled by an external force, the optical cable 140 may also transfer the force to the main housing 110 via the sleeve member 180, so as to reduce or avoid the external force being transferred to the portion of the optical cable 140 located at the first end 111 of the main housing 110, thereby effectively reducing or avoiding the portion of the optical cable 140 located at the first end 111 of the main housing 110 being subjected to force and causing the optical cable 140 to break.

[0147] For example, the sleeve member 180 may be a heat shrink sleeve. For example, the sleeve member 180 may be initially larger in size so as to be conveniently sleeved on the main housing 110 and the optical cable 140. After the sleeve member 180 is sleeved on the main housing 110 and the optical cable 140, the sleeve member 180 may be heated so as to shrink the sleeve member 180 so as to be tightly wrapped around the main housing 110 and the optical cable 140. In this way, the sleeve member 180 may be effectively reduced or prevented from being separated from the main housing 110 and the optical cable 140, and the firmness and reliability of the connection between the sleeve member 180 and the main housing 110 and the optical cable 140 may be improved, thereby effectively improving the reliability and stability of the connection between the optical cable 140 and the main housing 110.

[0148] Continue to see Fig.23 As shown, the connector may further include a tail sleeve 190, which may be sleeved on the second end 112 of the main housing 110, and the tail sleeve 190 may be sleeved on at least the sleeve member 180. The tail sleeve 190 may be made of rubber material, which has a certain elastic force, and the tail sleeve 190 may provide elastic protection for the optical cable 140. During the bending process of the optical cable 140, the tail sleeve 190 may increase the bending radius of the optical cable 140 to avoid the optical cable 140 from breaking due to a too small bending radius, thereby preventing the optical cable 140 from breaking and affecting the signal transmission between the optical fiber connectors.

[0149] 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 the ferrules 1221 at both ends can be better aligned during the docking process of the connectors, which helps to improve the accuracy of optical fiber alignment in each ferrule 1221, and can effectively reduce the transmission loss between optical fibers, thereby effectively improving the transmission efficiency of optical signals between connectors.

[0150] Moreover, the surface of the ceramic ferrule 1221 is smooth and easy to clean, which can effectively reduce the dust on the surface of the ferrule 1221 and prevent the excessive dust on the surface of the ferrule 1221 from affecting the transmission of the optical signal, which is beneficial to further reduce the loss and improve the efficiency of the optical signal transmission.

[0151] In addition, the ceramic ferrule 1221 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 connectors.

[0152] Fig.24 A schematic diagram of the structure of a connection box provided in an embodiment of the present application.

[0153] The present application also provides a connection box 200, see Fig.24As shown, 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 connector provided in any of the above scenarios. By cooperating the adapter 220 in the connection box 200 with the above optical fiber connector, the two optical fiber connectors inside and outside the connection box 200 may be docked through the adapter 220 to achieve transmission of optical signals. The connector has high reliability and stability, which can effectively improve the stability and reliability of optical signal transmission in the connection box 200.

[0154] 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, it can be the internal connection of two components or the interaction relationship between two components. 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.

[0155] 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, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by 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: include: A main housing (110), the main housing (110) comprising a first end (111) and a second end (112) opposite to each other, and a first accommodating cavity (113) penetrating the first end (111) and the second end (112) is provided in the main housing (110); A core insert assembly (120), the core insert assembly (120) being located in the first accommodating cavity (113); An optical cable (140), wherein a portion of the optical cable (140) is 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 (130), the locking cap (130) being sleeved on the main housing (110) and rotatably matched with the main housing (110); One of the main shell (110) and the locking cap (130) has a first limiting block (114), and the other of the main shell (110) and the locking cap (130) has a first limiting portion (131), and the first limiting portion (131) is provided with a first notch (132), and the first notch (132) is used for the first limiting block (114) to pass through.

2. The optical cable connector according to claim 1, characterized in that: The first limiting block (114) is located on the outside of the main housing (110), and the first limiting portion (131) is located on the inner wall of the locking cap (130) and is arranged along the circumference of the inner wall.

3. The optical cable connector according to claim 2, characterized in that: The locking cap (130) is located at the first end (111) of the main housing (110), and the first limiting portion (131) is located on a side of the first limiting block (114) facing the first end (111).

4. The optical cable connector according to any one of claims 1 to 3, characterized in that: An open groove (1111) is provided at the first end of the main housing (110), and the open groove (1111) extends from the end of the main housing (110) along the axial direction of the main housing (110).

5. The optical cable connector according to claim 4, characterized in that: A flange (115) is provided on the outer periphery of the main housing (110), the opening groove (1111) extends to a position close to the flange (115), the inner wall of the locking cap (130) has a limiting platform (133), and the flange (115) abuts against the limiting platform (133).

6. The optical cable connector according to claim 5, characterized in that: One of the main housing (110) and the locking cap (130) is provided with two second limit blocks (134), and the two second limit blocks (134) are arranged at intervals (1351) along the circumferential direction; The other of the main housing (110) and the locking cap (130) has a first limiting column (116), the first limiting column (116) is located between the two second limiting blocks (134), and the first limiting column (116) can rotate within the angle range defined by the two second limiting blocks (134).

7. The optical cable connector according to claim 6, characterized in that: The first limiting column (116) is located on the outer wall of the flange (115); The two second limit blocks (134) are located on the inner wall of the locking cap (130), and the two second limit blocks (134) are arranged at intervals (1351) along the circumference of the locking cap (130).

8. The optical cable connector according to claim 5, characterized in that: A third limiting block (135) is provided on the inner wall of the locking cap (130), the third limiting block (135) is arranged along the circumference of the locking cap (130), and a gap (1351) is provided between the head end and the tail end of the third limiting block (135); The outer wall of the flange (115) is provided with a first limiting column (116), the first limiting column (116) is located in the interval (1351) between the head end and the end end of the third limiting block (135), and the first limiting column (116) can rotate within the angle range defined by the head end and the end end.

9. The optical cable connector according to claim 5, characterized in that: The flange (115) has a second notch, and the locking cap (130) has a third limiting column; The third limiting column is located in the second notch, and the third limiting column can rotate within an angle range defined by the notch.

10. The optical cable connector according to any one of claims 1 to 3, characterized in that: The main housing (110) is an integrated structure.

11. The optical cable connector according to any one of claims 1 to 3, characterized in that: It also includes a crimping ring (150), wherein the crimping ring (150) is sleeved on the optical cable (140) and connected to the optical cable (140); The crimping ring (150) is also sleeved on the second end (112) of the main housing (110), and the crimping ring (150) is used to press the optical cable (140) onto the main housing (110).

12. The optical cable connector according to claim 11, characterized in that: The optical cable (140) comprises an optical cable (140) body and a reinforcement layer sleeved on the optical cable (140) body, and a portion of the reinforcement layer is compressed between the crimping ring (150) and the main shell (110).

13. The optical cable connector according to any one of claims 1 to 3, characterized in that: Also includes: a connecting member (160), the connecting member (160) being located in the first accommodating cavity (113) and disposed close to the second end (112), the connecting member (160) and the main housing (110) being coupled to each other; The optical cable (140) is partially inserted into the connecting piece (160) and connected to the connecting piece (160).

14. The optical cable connector according to claim 13, characterized in that: The connecting member (160) has a second limiting portion (161), and the main housing (110) has a third limiting portion (117); The second limiting portion (161) and the third limiting portion (117) abut against each other, and the coupling relationship is formed between the connecting member (160) and the main housing (110) through the abutment between the second limiting portion (161) and the third limiting portion (117).

15. The optical cable connector according to claim 14, characterized in that: The abutting surface of the second limiting portion (161) faces the second end (112) of the main housing (110); The abutting surface of the third limiting portion (117) faces the first end (111) of the main housing (110).

16. The connector according to claim 13, characterized in that One of the connecting member (160) and the main housing (110) has a first limiting groove (162), and the other of the connecting member (160) and the main housing (110) has a fourth limiting block (118) matched with the first limiting groove (162); The fourth limiting block (118) cooperates with the first limiting groove (162) to limit the relative rotation between the main housing (110) and the connecting member (160).

17. The optical cable connector according to any one of claims 1 to 3, characterized in that: Also includes: A base (170), the base (170) being located in the first accommodating cavity (113) of the main housing (110); One end of the base (170) is connected to the ferrule assembly (120) and the main housing (110), and the other end of the base (170) is connected to the optical cable (140).

18. The optical cable connector according to claim 17, characterized in that: One of the main housing (110) and the base (170) is provided with a first clamping portion (171); The other of the main housing (110) and the base (170) has a first card slot (119), and the first card connection portion (171) is clamped in the first card slot (119).

19. The optical cable connector according to claim 17, characterized in that: The base (170) has a shaft shoulder portion (172) on its outer periphery, and the main housing (110) has an elastic clamping portion (1110), wherein the elastic clamping portion (1110) abuts against the end surface of the shaft shoulder portion (172).

20. The optical cable connector according to any one of claims 1 to 3, characterized in that: The ferrule assembly (120) comprises: A housing component (121), wherein the housing component (121) has a second accommodating cavity; A core insert structure (122), wherein at least a portion of the core insert structure (122) is disposed in the second accommodating cavity; An elastic member (123), wherein 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 core inserting structure (122).

21. The optical cable connector according to any one of claims 1 to 3, characterized in that: The front end of the insert 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 (130).

22. A connection box, characterized in that: The optical fiber connector comprises a housing (210) and an adapter (220), wherein the adapter (220) is located on the housing (210), and the adapter (220) is used to match with the optical cable connector according to any one of claims 1 to 21.

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