MPO optical fiber connector

Abstract

The invention relates to the technical field of connectors, and discloses an MPO optical fiber connector which comprises a core assembly and a shell assembly. The core assembly comprises an optical fiber bearing mechanism, and an elastic compression ring and a positioning mechanism which are sequentially connected to the optical fiber bearing mechanism in a sliding manner along a first direction, the optical fiber bearing mechanism is used for being spliced with an optical fiber connection adapter, and the interior of the optical fiber bearing mechanism is connected with an optical fiber through a formed optical fiber jack; at least part of the optical fiber bearing mechanism abuts against one end of the elastic compression ring, and at least part of the end face of the positioning mechanism abuts against the other end of the elastic compression ring. And a mounting cavity is formed in the shell assembly. According to the MPO optical fiber connector, the overall structure is compact, the overall length of the connector is effectively reduced, the MPO optical fiber connector is suitable for a high-density wiring environment, the uniformity of contact pressure of optical fiber connection points is improved, the overall connection quality is improved, and then the stability of optical fiber connection is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, and in particular to an MPO optical fiber connector. Background Art

[0002] With the rapid development of information technologies such as big data, cloud computing, and the Internet of Things, the demand for network bandwidth and data transmission rate in facilities such as data centers and communication base stations continues to increase. Fiber-optic communication has become the core infrastructure of modern communication networks due to its advantages such as high bandwidth, low latency, and strong anti-interference ability. In high-density wiring environments such as data centers and communication base stations, fiber optic connectors, as key components in fiber optic networks, play an important role in connecting and transmitting optical signals. Therefore, the performance and reliability of fiber optic connectors directly affect the stability of the entire network and the efficiency of data transmission.

[0003] The MPO (multi-fiber push-pull connector) fiber optic connector in the prior art usually uses a spring and a buckle structure to achieve optical fiber connection and fixation. A typical MPO fiber optic connector includes a core component and a shell component. The core component includes an optical fiber bearing component, a spring and a positioning component. The optical fiber bearing component is used to accommodate the optical fiber connector. The spring is arranged between the optical fiber bearing component and the positioning mechanism. The optical fiber connection is fixed by the compression force of the spring (that is, the optical fiber bearing component is continuously pushed against the connecting part of the optical fiber connection adapter by the elastic force, so that the signal can be transmitted stably, and the loose connection between the optical fiber bearing component and the optical fiber connection adapter is avoided to affect the stability of the optical fiber connection signal transmission). The positioning mechanism is used to position and fix the optical fiber bearing mechanism. However, in actual applications, the MPO fiber optic connector with a traditional spring and buckle structure needs to occupy a certain axial space due to the setting of the spring, which increases the overall length of the connector, which is not conducive to high-density wiring in a small space. In addition, in a multi-fiber connector, the force of multiple springs may be uneven, resulting in different contact pressures at each optical fiber connection point, which in turn affects the overall connection quality, resulting in a decrease in the stability of the optical fiber connection, and affecting the reliability of data transmission. Summary of the invention

[0004] The purpose of the present invention is to provide an MPO fiber optic connector with a compact overall structure, which effectively reduces the overall length of the connector, is suitable for high-density wiring environments, and improves the uniformity of contact pressure at fiber optic connection points, improves the overall connection quality, and thereby improves the stability of fiber optic connections.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: Design an MPO optical fiber connector, including a core component and a shell component; The core assembly includes an optical fiber bearing mechanism, an elastic compression ring and a positioning mechanism which are sequentially slidably connected to the optical fiber bearing mechanism along a first direction, the optical fiber bearing mechanism is used to be spliced ​​with an optical fiber connection adapter, and is connected to the optical fiber through an optical fiber jack provided inside, the optical fiber bearing mechanism at least partially abuts against one end of the elastic compression ring, and the end face of the positioning mechanism at least partially abuts against the other end of the elastic compression ring; The housing component has an installation cavity formed inside, and the optical fiber bearing mechanism, the elastic compression ring and the positioning mechanism are all slidably connected in the installation cavity along a first direction, and the positioning mechanism and the installation cavity are locked by a stop assembly.

[0006] Optionally, the stop assembly includes a locking rod and a locking block, one end of the locking block is connected to the end face of the positioning mechanism facing the elastic compression ring, and at least partially overlaps with the projection of the elastic compression ring along the second direction, the locking rod is slidably connected in the shell assembly along the second direction, and at least partially located in the installation cavity, the end of the locking rod facing the elastic compression ring is trapezoidally arranged, and the surface of the locking block facing the locking rod along the first direction has two edges that are sloped to cooperate with the locking rod.

[0007] Optionally, the stop assembly further includes a locking plate, one end of the locking block is fixedly connected to one end of the locking plate, and the other end of the locking plate is fixedly connected to the end surface of the positioning mechanism facing the elastic compression ring.

[0008] Optionally, the elastic compression ring includes an elastic compression sleeve and two fixing rings, one of the fixing rings is fixedly connected to one end of the elastic compression sleeve and abuts against the optical fiber supporting mechanism, the other fixing ring is fixedly connected to the other end of the elastic compression sleeve and abuts against the positioning mechanism, the elastic compression sleeve and the two fixing rings are all sleeved on the outer surface of the optical fiber supporting mechanism, the outer surface of one of the fixing rings is sleeved on the outside of the locking plate through the opened groove, and the elastic compression sleeve and the locking block at least partially overlap in projection along the second direction.

[0009] Optionally, the optical fiber carrying mechanism includes an optical fiber carrying shell and a closing cover, the optical fiber socket is provided at one end of the optical fiber carrying shell, the surface of the optical fiber carrying shell is detachably connected to the closing cover via a groove, the elastic compression ring is provided on the surfaces of the optical fiber carrying shell and the closing cover, a clamping groove for clamping the outer skin of the optical fiber is formed between the optical fiber carrying shell and the closing cover, and the clamping groove is communicated with the optical fiber socket.

[0010] Optionally, a limiting block is fixedly connected to the inner wall of the installation cavity, a limiting groove is provided on the surface of the optical fiber bearing shell corresponding to the limiting block, and the limiting block is slidably connected in the limiting groove along a first direction to assist in positioning the optical fiber bearing shell.

[0011] Optionally, the positioning mechanism includes a positioning ring block and a line gathering shell, the positioning ring block is sleeved on the surface of the optical fiber carrying shell and the closing cover, and is connected to the surface of the optical fiber carrying shell and the closing cover through a gap, one end of the locking plate is fixedly connected to one end of the positioning ring block, and the other end of the positioning ring block is fixedly connected to the line gathering shell.

[0012] Optionally, the positioning mechanism also includes a three-way shell, one end of the three-way shell is connected to the line gathering shell, the projections of the other two ends of the three-way shell along the second direction overlap with each other, and the inner walls of the bending transition part between one end of the three-way shell connected to the line gathering shell and the other two ends are both arranged in an arc shape.

[0013] Optionally, the shell assembly includes an abutment shell and a protective shell, the protective shell is slidably connected in the abutment shell, a sliding groove is provided on the outer surface of the protective shell, a sliding block is fixedly connected to the inner side wall of the abutment shell, the installation cavity is provided in the protective shell, and one end of the abutment shell abuts against the outer surface of the optical fiber connection adapter.

[0014] Optionally, a rubber pad is fixedly connected to the end surface of the abutment shell facing the optical fiber connection adapter.

[0015] The present invention provides an MPO optical fiber connector, which has the following beneficial effects: The MPO optical fiber connector carries and installs the optical fiber for connection through the optical fiber bearing mechanism provided by the core component. The elastic compression ring and the positioning mechanism are both sleeved on the outer surface of the optical fiber bearing mechanism. Through the provision of the elastic compression ring, when the optical fiber bearing mechanism abuts against the optical fiber connection adapter and moves back along the first direction in the installation cavity, the positioning mechanism and the installation cavity are locked by the stop assembly, and the positioning mechanism cannot move in the installation cavity, so that it can abut against one end of the elastic compression ring and cannot move. The optical fiber bearing mechanism pushes the elastic compression ring to shrink. At this time, the elastic compression ring generates an elastic force to push the optical fiber bearing mechanism against the optical fiber connection adapter (through the elastic margin with a certain displacement, the connection between the optical fiber bearing mechanism and the optical fiber connection adapter can be prevented from being loosened or damaged due to hard connection). The elastic compression ring can evenly disperse the pressure when subjected to force, ensure that the contact pressure of each optical fiber connection point is consistent, avoid the problem of uneven force distribution caused by the nonlinear compression characteristics of traditional springs, ensure the stability of the optical fiber connection, and the elastic compression ring is directly sleeved on the outer surface of the optical fiber bearing mechanism, so that the overall structure is compact, the overall length of the connector is effectively reduced, and it is suitable for high-density wiring environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the exploded structure of the MPO optical fiber connector in the present invention; Figure 2 It is a schematic diagram of the installation structure of the MPO optical fiber connector in the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the MPO optical fiber connector in the present invention; Figure 4 It is a schematic diagram of the cross-sectional structure of the MPO optical fiber connector before installation in the present invention; Figure 5 It is a schematic diagram of the cross-sectional structure of the MPO optical fiber connector after installation in the present invention.

[0017] In the figure: 100, core assembly; 110, optical fiber bearing mechanism; 111, optical fiber bearing shell; 112, closing cover; 113, clamping groove; 114, limiting groove; 120, elastic compression ring; 121, elastic compression sleeve; 122, fixing ring; 130, positioning mechanism; 131, positioning ring block; 132, line gathering shell; 133, three-way shell; 200, outer shell assembly; 210, abutment shell; 220, protective shell; 230, installation cavity; 240, limiting block; 250, rubber pad; 300, stop assembly; 310, locking rod; 320, locking block; 330, locking plate. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. All other embodiments obtained by ordinary technicians in the field without making creative work based on the embodiments of the present invention shall fall within the scope of protection of the present invention.

[0019] See also Figures 1 to 5 , the present invention provides a technical solution: an MPO optical fiber connector, comprising a core component 100 and a shell component 200; The core assembly 100 includes an optical fiber carrying mechanism 110, and an elastic compression ring 120 and a positioning mechanism 130 which are sequentially slidably connected to the optical fiber carrying mechanism 110 along a first direction. The optical fiber carrying mechanism 110 is used for splicing with an optical fiber connection adapter, and is connected to an optical fiber through an optical fiber jack provided inside. The optical fiber carrying mechanism 110 at least partially abuts against one end of the elastic compression ring 120, and the end surface of the positioning mechanism 130 at least partially abuts against the other end of the elastic compression ring 120. The housing assembly 200 has an installation cavity 230, the optical fiber carrying mechanism 110, the elastic compression ring 120 and the positioning mechanism 130 are all slidably connected in the installation cavity 230 along a first direction, and the positioning mechanism 130 and the installation cavity 230 are locked by a stop assembly 300; The optical fiber supporting mechanism 110 is used to fix the optical fiber connector, that is, the optical fiber supporting mechanism 110 is connected to the optical fiber, the optical fiber is composed of an optical fiber core and an optical fiber skin, the optical fiber jack is used to connect to the optical fiber core for optical fiber signal transmission, the optical fiber supporting mechanism 110 is an existing well-known technology, and can be pin-free or pin-free, and must be connected through an optical fiber connection adapter, or it can be understood that it must be connected to an optical fiber connection adapter to ensure a stable connection of the optical fiber, the elastic compression ring 120 provides compression force, abuts against the optical fiber supporting mechanism 110, ensures the tightness and stability of the connection, and avoids loosening of the optical fiber connection. Through the setting of the elastic compression ring 120, when the optical fiber supporting mechanism 110 abuts against the optical fiber connection adapter and moves along the first direction in the installation cavity 230 When moving backward, the positioning mechanism 130 and the installation cavity 230 are locked by the stop assembly 300, and the positioning mechanism 130 cannot move in the installation cavity 230, so that it can be pressed against one end of the elastic compression ring 120 and cannot move. The optical fiber supporting mechanism 110 pushes the elastic compression ring 120 to contract. At this time, the elastic compression ring 120 will generate an elastic force to push the optical fiber supporting mechanism 110 against the optical fiber connection adapter. Through the elastic margin with a certain displacement, the connection between the optical fiber supporting mechanism 110 and the optical fiber connection adapter caused by hard connection can be avoided. Through the connection between the positioning mechanism 130 and the optical fiber supporting mechanism 110, when the optical fiber supporting mechanism 110 slides in the installation cavity 230, it can slide in the positioning mechanism 130.

[0020] In this embodiment, as a preferred solution, the stop assembly 300 includes a locking rod 310 and a locking block 320, one end of the locking block 320 is connected to the end surface of the positioning mechanism 130 facing the elastic compression ring 120, and at least partially overlaps with the projection of the elastic compression ring 120 along the second direction, the locking rod 310 is slidably connected in the housing assembly 200 along the second direction, and at least partially located in the installation cavity 230, the end of the locking rod 310 facing the elastic compression ring 120 is trapezoidal, and the surface of the locking block 320 facing the locking rod 310 along the first direction Both edges are arranged in a slope that matches the locking rod 310; During the installation process, the elastic compression ring 120 is firstly sleeved on the outer surface of the optical fiber supporting mechanism 110, and one end thereof is in contact with the optical fiber supporting mechanism 110, and then the positioning mechanism 130 is also sleeved on the outer surface of the optical fiber supporting mechanism 110 and is in contact with the other end of the elastic compression ring 120, and then the positioning mechanism 130 is held by hand to push the optical fiber supporting mechanism 110 and the elastic compression ring 120 into the installation cavity 230, and the locking block 320 is arranged on the positioning mechanism 130. As the positioning mechanism 130 enters the installation cavity 230, the trapezoidal locking rod 310 also has two slopes at one end. When one of the slopes of the locking block 320 is The first surface first contacts with one of the slopes of the locking rod 310, pushing the locking rod 310 to rise along the second direction, and then the transition part between the two slopes of the locking rod 310 abuts against the transition part between the two slopes of the locking block 320, and then the other slope of the locking block 320 contacts with the other slope of the locking rod 310, and at the same time, the locking rod 310 falls along the second direction. When the locking block 320 moves back along the first direction and the locking rod 310 cannot rise along the second direction, the locking block 320 and the positioning mechanism 130 are locked, so that the positioning mechanism 130 cannot slide out of the installation cavity 230, thereby achieving locking.

[0021] In this embodiment, as a preferred solution, the stop assembly 300 further includes a locking plate 330, one end of the locking block 320 is fixedly connected to one end of the locking plate 330, and the other end of the locking plate 330 is fixedly connected to the end surface of the positioning mechanism 130 facing the elastic compression ring 120; The connection between the locking plate 330 and the locking block 320 is used to establish a connection between the positioning mechanism 130 and the locking block 320. At the same time, the locking plate 330 does not affect the slope of the locking block 320, and the locking plate 330 has a certain toughness, that is, it can be bent along the second direction and bent under pressure rather than under tension, so as to avoid being easily broken after a long time of use like a buckle, and when the buckle is engaged, when the buckle opening opens to both sides, there is no auxiliary reset force, and it only relies on its own tensile strength. It is easy to fatigue and lose the reset ability after repeated use, resulting in loose connection and easy fall-off of the positioning mechanism 130.

[0022] In this embodiment, as a preferred solution, the elastic compression ring 120 includes an elastic compression sleeve 121 and two fixing rings 122, wherein one fixing ring 122 is fixedly connected to one end of the elastic compression sleeve 121 and abuts against the optical fiber bearing mechanism 110, and the other fixing ring 122 is fixedly connected to the other end of the elastic compression sleeve 121 and abuts against the positioning mechanism 130. The elastic compression sleeve 121 and the two fixing rings 122 are all sleeved on the outer surface of the optical fiber bearing mechanism 110, and the outer surface of one of the fixing rings 122 is sleeved on the outside of the locking plate 330 through the groove provided, and the elastic compression sleeve 121 and the locking block 320 at least partially overlap along the second direction; Through the action of the fixing ring 122, it abuts against the optical fiber supporting mechanism 110 and the positioning mechanism 130, which is a hard connection. The fixing ring 122 can also slide along the first direction in the installation cavity 230 and abut against the inner wall of the installation cavity 230 to avoid tilting, thereby preventing the elastic compression sleeve 121 from flexibly deforming and causing displacement of part of the same end face of the elastic compression sleeve 121. Since the elastic force is not uniform due to the lack of displacement, the design of the fixing ring 122 ensures the uniform distribution of the elastic force. While providing the necessary elastic force, the elastic compression sleeve 121 limits unnecessary deformation through the action of the fixing ring 122, thereby avoiding the problem of unstable connection caused by uneven deformation of the elastic compression sleeve 121.

[0023] In this embodiment, as a preferred solution, the optical fiber bearing mechanism 110 includes an optical fiber bearing shell 111 and a closing cover 112, the optical fiber insertion hole is provided at one end of the optical fiber bearing shell 111, the surface of the optical fiber bearing shell 111 is detachably connected to the closing cover 112 through the groove provided, the elastic compression ring 120 is sleeved on the surfaces of the optical fiber bearing shell 111 and the closing cover 112, and a clamping groove 113 for clamping the outer skin of the optical fiber is formed between the optical fiber bearing shell 111 and the closing cover 112, and the clamping groove 113 is communicated with the optical fiber insertion hole; The optical fiber carrying shell 111 provides basic optical fiber connection functions, and the closing cover 112 increases the connection flexibility and convenient disassembly and maintenance functions through a detachable design, which facilitates the replacement of the optical fiber. The design of the clamping groove 113 ensures the stability and safety of the optical fiber in the connector, and avoids possible loss or interference during the optical signal transmission process. At the same time, the closing cover 112 and the optical fiber carrying shell 111 clamp the surface of the optical fiber (the outer rubber layer of the optical fiber), which also prevents the optical fiber from accidentally falling off from the clamping groove 113 between the optical fiber carrying shell 111 and the closing cover 112 when accidentally pulling the optical fiber. And the transition part of the locking block 320 is interference fit with the wall of the installation cavity 230, that is, when the locking block 320 slides into the installation cavity 230, the inner wall of the installation cavity 230 will squeeze the locking block 320 along the second direction, and the locking block 320 applies the squeezing force on the surface of the elastic compression sleeve 121, and the elastic compression sleeve 121 will generate a reaction force along the second direction, a part of which acts on the closing cover 112. By squeezing the closing cover 112, the closing cover 112 is continuously pressed against the optical fiber carrying shell 111, thereby further stabilizing the clamping of the optical fiber and avoiding accidental extraction of the optical fiber. At the same time, the application range of the optical fiber can be improved. For example, optical fibers of different sizes can play a compensatory role and improve the stability of the optical fiber clamping.

[0024] In this embodiment, as a preferred solution, the inner wall of the installation cavity 230 is fixedly connected to the limiting block 240, and the surface of the optical fiber bearing shell 111 is provided with a limiting groove 114 corresponding to the limiting block 240, and the limiting block 240 is slidably connected in the limiting groove 114 along the first direction, so as to assist in positioning the optical fiber bearing shell 111; Through the connection between the limiting block 240 and the limiting groove 114, the moving range of the optical fiber carrying shell 111 in the installation cavity 230 can be limited to prevent the optical fiber carrying shell 111 from passing out of the installation cavity 230, thereby ensuring the stability during connection and use.

[0025] In this embodiment, as a preferred solution, the positioning mechanism 130 includes a positioning ring block 131 and a line gathering shell 132. The positioning ring block 131 is sleeved on the surface of the optical fiber bearing shell 111 and the closing cover 112, and is connected to the surface of the optical fiber bearing shell 111 and the closing cover 112 through a gap. One end of the locking plate 330 is fixedly connected to one end of the positioning ring block 131, and the other end of the positioning ring block 131 is fixedly connected to the line gathering shell 132. The positioning ring block 131 is sleeved on the surface of the optical fiber carrying shell 111 and the closing cover 112 and is connected to the optical fiber carrying shell 111 and the closing cover 112 through a gap. This is to avoid that when the optical fiber is thicker, the closing cover 112 has no displacement margin. Through the connection between the positioning ring block 131 and the locking plate 330, the positioning ring block 131 can drive the locking plate 330 to move along the first direction. Through the action of the line bundling shell 132, the optical fiber can be assisted in bundling.

[0026] In this embodiment, as a preferred solution, the positioning mechanism 130 further includes a three-way shell 133, one end of which is connected to the line bundling shell 132, and the projections of the other two ends of the three-way shell 133 along the second direction overlap with each other, and the inner wall of the bending transition part between the one end of the three-way shell 133 connected to the line bundling shell 132 and the other two ends are both arranged in an arc shape; Through the arc-shaped transition part of the three-way shell 133, first, one of the open ends is connected to the line gathering shell 132 for line outlet, that is, the optical fiber line enters the line gathering shell 132, and the other two open ends face in opposite directions respectively, for the purpose of cooperating with the installation and use of lines in different directions. When used in a relatively narrow environment, for example, when the inlet or outlet of the optical fiber faces the wall of the space, the optical fiber must be bent. The setting of the arc-shaped transition part can ensure a smooth transition when the optical fiber is bent, avoiding right-angle bending that causes the optical fiber core inside the optical fiber to break and affect the use, playing an auxiliary protection role for the optical fiber, further improving the applicability when used in a narrow environment, and at the same time, when the optical fiber is accidentally pulled, it can also avoid bending and breaking of the optical fiber.

[0027] The first direction is a reciprocating straight line direction and is not limited to just one direction, that is, when the first direction points to the north and south, moving along the first direction can be understood as moving toward the north or moving toward the south.

[0028] In this embodiment, as a preferred solution, the housing assembly 200 includes an abutting shell 210 and a protective shell 220, the protective shell 220 is slidably connected in the abutting shell 210, a sliding groove is provided on the outer surface of the protective shell 220, a slider is fixedly connected to the inner side wall of the abutting shell 210, the installation cavity 230 is provided in the protective shell 220, and one end of the abutting shell 210 abuts against the outer surface of the optical fiber connection adapter; The connection between the abutment shell 210 and the protective shell 220 is that the protective shell 220 can slide inside the abutment shell 210, or the abutment shell 210 can slide outside the protective shell 220. The abutment shell 210 is used to abut with the optical fiber connection adapter. In daily use, the abutment shell 210 can be located at the end of the protective shell 220 away from the positioning mechanism 130, that is, to protect the optical fiber carrying shell 111 extending out of the protective shell 220. At the same time, a damping is provided between the protective shell 220 and the abutment shell 210. When installed and used, the abutment shell 210 The protective shell 220 moves along the first direction toward the optical fiber connection adapter to abut against the optical fiber connection adapter. When the abutting shell 210 abuts against the optical fiber connection adapter, the protective shell 220 continues to move into the optical fiber connection adapter, and the abutting shell 210 and the protective shell 220 move relatively to each other. The abutting shell 210 moves to the top of the locking rod 310, and the inner wall abuts against the other end of the locking rod 310 away from the locking block 320, so that the locking rod 310 cannot rise, that is, the positioning mechanism 130 is locked, so that it cannot be pulled out from the optical fiber bearing shell 111. Of course, when not connected to the optical fiber connection adapter, the abutment shell 210 can be directly moved to the top of the locking rod 310 to lock the positioning mechanism 130. This structure is compact and easy to operate, reduces production costs, and facilitates maintenance.

[0029] In this embodiment, as a preferred solution, a rubber pad 250 is fixedly connected to the end face of the abutment shell 210 facing the optical fiber connection adapter. The rubber pad 250 can assist in sealing the connection between the abutment shell 210 and the optical fiber connection adapter. The optical fiber connection adapter is an existing well-known technology and will not be described in detail here.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An MPO optical fiber connector, characterized in that: It comprises a core component (100) and a shell component (200); The core component (100) comprises an optical fiber bearing mechanism (110), and an elastic compression ring (120) and a positioning mechanism (130) which are sequentially slidably connected to the optical fiber bearing mechanism (110) along a first direction, the optical fiber bearing mechanism (110) being used for splicing with an optical fiber connection adapter and being connected to an optical fiber via an optical fiber jack provided inside, the optical fiber bearing mechanism (110) at least partially abutting against one end of the elastic compression ring (120), and the end face of the positioning mechanism (130) at least partially abutting against the other end of the elastic compression ring (120); The housing component (200) has an installation cavity (230) formed inside, and the optical fiber bearing mechanism (110), the elastic compression ring (120) and the positioning mechanism (130) are all slidably connected in the installation cavity (230) along a first direction, and the positioning mechanism (130) and the installation cavity (230) are locked by a stopper component (300).

2. The MPO optical fiber connector according to claim 1, characterized in that: The stop assembly (300) comprises a locking rod (310) and a locking block (320); one end of the locking block (320) is connected to the end surface of the positioning mechanism (130) facing the elastic compression ring (120), and at least partially overlaps with the projection of the elastic compression ring (120) along the second direction; the locking rod (310) is slidably connected in the housing assembly (200) along the second direction, and at least partially located in the installation cavity (230); one end of the locking rod (310) facing the elastic compression ring (120) is arranged in a trapezoidal shape; and the surface of the locking block (320) facing the locking rod (310) along the first direction has two edges that are arranged in a sloped surface that matches the locking rod (310).

3. The MPO optical fiber connector according to claim 2, characterized in that: The stop assembly (300) further comprises a locking plate (330), one end of the locking block (320) being fixedly connected to one end of the locking plate (330), and the other end of the locking plate (330) being fixedly connected to the end surface of the positioning mechanism (130) facing the elastic compression ring (120).

4. The MPO optical fiber connector according to claim 3, characterized in that: The elastic compression ring (120) comprises an elastic compression sleeve (121) and two fixing rings (122), wherein one of the fixing rings (122) is fixedly connected to one end of the elastic compression sleeve (121) and abuts against the optical fiber bearing mechanism (110), and the other fixing ring (122) is fixedly connected to the other end of the elastic compression sleeve (121) and abuts against the positioning mechanism (130), the elastic compression sleeve (121) and the two fixing rings (122) are both sleeved on the outer surface of the optical fiber bearing mechanism (110), the outer surface of one of the fixing rings (122) is sleeved on the outside of the locking plate (330) through a groove, and the elastic compression sleeve (121) and the locking block (320) are at least partially overlapped in projection along the second direction.

5. The MPO optical fiber connector according to claim 3, characterized in that: The optical fiber bearing mechanism (110) comprises an optical fiber bearing shell (111) and a closing cover (112); the optical fiber insertion hole is provided at one end of the optical fiber bearing shell (111); the surface of the optical fiber bearing shell (111) is detachably connected to the closing cover (112) via a groove provided thereon; the elastic compression ring (120) is sleeved on the surfaces of the optical fiber bearing shell (111) and the closing cover (112); a clamping groove (113) for clamping the outer skin of the optical fiber is formed between the optical fiber bearing shell (111) and the closing cover (112); the clamping groove (113) is communicated with the optical fiber insertion hole.

6. The MPO optical fiber connector according to claim 5, characterized in that: A limiting block (240) is fixedly connected to the inner wall of the installation cavity (230), a limiting groove (114) is provided on the surface of the optical fiber bearing shell (111) corresponding to the limiting block (240), and the limiting block (240) is slidably connected in the limiting groove (114) along a first direction to assist in positioning the optical fiber bearing shell (111).

7. The MPO optical fiber connector according to claim 5, characterized in that: The positioning mechanism (130) comprises a positioning ring block (131) and a line gathering shell (132); the positioning ring block (131) is sleeved on the surface of the optical fiber bearing shell (111) and the closing cover (112), and is connected to the surface of the optical fiber bearing shell (111) and the closing cover (112) through a gap; one end of the locking plate (330) is fixedly connected to one end of the positioning ring block (131), and the other end of the positioning ring block (131) is fixedly connected to the line gathering shell (132).

8. The MPO optical fiber connector according to claim 7, characterized in that: The positioning mechanism (130) further comprises a three-way shell (133), one end of the three-way shell (133) being connected to the line-bundling shell (132), the projections of the other two ends of the three-way shell (133) along the second direction being mutually overlapped, and the inner walls of the bending transition part between the one end of the three-way shell (133) connected to the line-bundling shell (132) and the other two ends are both arranged in an arc shape.

9. The MPO optical fiber connector according to claim 1, characterized in that: The housing assembly (200) comprises an abutment shell (210) and a protective shell (220); the protective shell (220) is slidably connected in the abutment shell (210); a sliding groove is provided on the outer surface of the protective shell (220); a sliding block is correspondingly fixedly connected to the inner side wall of the abutment shell (210); the installation cavity (230) is provided in the protective shell (220); and one end of the abutment shell (210) abuts against the outer surface of the optical fiber connection adapter.

10. The MPO optical fiber connector according to claim 9, characterized in that: The end surface of the abutment shell (210) facing the optical fiber connection adapter is fixedly connected with a rubber pad (250).

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