A multi-fiber optical fiber mpo connector with reliable connection

Abstract

This invention relates to the field of fiber optic connector technology, specifically to a reliable multi-core fiber optic MPO connector, comprising a male connector and a female connector; the male connector includes a male housing and a male ferrule; the male ferrule has a guide pin at its end; the female connector includes a female housing and a female ferrule; the female ferrule has a mounting hole at its end; a buffer cavity is provided inside the female housing; a buffer spring is provided between the female ferrule and the buffer cavity; a female fiber assemblies pass through the buffer cavity; and a locking assembly is provided between the female ferrule and the male ferrule. This invention, by providing a buffer spring between the female ferrule and the buffer cavity, and by connecting the female ferrule and the male ferrule through a locking assembly, allows the buffer spring to elastically expand and contract to offset the impact force when the optical cable is subjected to external forces such as tension, compression, or collision, preventing the external force from being directly transmitted to the internal male and female fiber assemblies, thus preventing excessive bending, core displacement, or breakage of the male and female fiber assemblies, effectively protecting them.

Description

Technical Field

[0001] This invention relates to the field of fiber optic connector technology, and more specifically to a reliable multi-core fiber optic MPO connector. Background Technology

[0002] As a core component in the field of optical communication that enables rapid connection of multi-core optical cables, MPO connectors are widely used in scenarios such as data centers, 5G base stations, and fiber-to-the-home. Their connection stability not only affects the transmission quality of optical signals but also directly impacts the lifespan of the internal optical fibers.

[0003] Currently, the mainstream MPO connectors in the industry generally use a matching snap-fit ​​structure on the plastic shells of both to secure the male and female connectors together. This connection method is widely used because of its simple structure and convenient assembly.

[0004] However, existing snap-fit ​​connections create a rigid, fixed connection between the male and female connectors, lacking inherent buffering and load-bearing capabilities. In practical use, optical cables inevitably experience external forces such as tension, compression, or accidental impacts. These forces are directly transmitted through the cable to the connector's snap-fit ​​area and internal fiber optic components. The rigid connection cannot buffer or offset these external forces, which directly impact the internal optical fibers, causing excessive bending, core displacement, or even breakage. This leads to interruptions in optical signal transmission, increasing equipment maintenance costs and downtime losses, and reducing the overall reliability of the optical communication system. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned shortcomings in the prior art by providing a reliable multi-core fiber optic MPO connector.

[0006] The objective of this invention is achieved through the following technical solution: a reliable multi-core fiber optic MPO connector, comprising a male connector and a female connector that mates with the male connector;

[0007] The male connector includes a male housing and a male ferrule located at one end of the male housing; the end of the male ferrule is provided with a guide pin and a male wire hole; a male optical fiber assembly is provided between the male housing and the male ferrule; the end of the male optical fiber assembly is located at the male wire hole;

[0008] The female connector includes a female housing and a female ferrule that is telescopically movably disposed at the end of the female housing; the end of the female ferrule is provided with a female wire-passing hole and a mounting hole for engaging with a guide pin; a female optical fiber assembly is provided between the female housing and the female ferrule; the end of the female optical fiber assembly is located at the female wire-passing hole; a buffer cavity is provided inside the female housing; the end of the female ferrule furthest from the male ferrule is movably disposed in the buffer cavity; a buffer spring is provided between the end of the female ferrule furthest from the male ferrule and the buffer cavity; the female optical fiber assembly passes through the buffer cavity;

[0009] A locking assembly is provided between the female ferrule and the male ferrule.

[0010] The present invention is further configured such that the insertion direction of the male connector and the female connector is the length direction; and the direction perpendicular to the length direction in the horizontal direction is the width direction.

[0011] The mounting hole and guide pin are both extended along the length direction; the female ferrule is telescopically movable at the end of the female housing along the length direction; the end of the female ferrule away from the male ferrule is slidably disposed in the buffer cavity along the length direction.

[0012] The invention is further configured such that the locking assembly includes a locking groove disposed on the inner side of the guide pin and a locking block that is telescopically movable in the mounting hole along the width direction.

[0013] The present invention is further configured such that: a driving cavity is provided inside the female ferrule; a driving plate is slidably disposed in the driving cavity along the length direction; the mounting hole communicates with the driving cavity; and the locking block is slidably disposed between the mounting hole and the driving cavity along the width direction.

[0014] The locking block includes a driving part and a locking part; the locking part is telescopically movably disposed in the mounting hole and used to lock with the locking groove of the guide pin; the driving part is provided with a driving pin; the driving plate is provided with a straight driving groove and an oblique driving groove; the end of the straight driving groove near the male ferrule is connected to the oblique driving groove; the straight driving groove extends along the length direction; the oblique driving groove and the straight driving groove are inclined; the driving pin is movably disposed between the straight driving groove and the oblique driving groove; when the driving pin moves in the straight driving groove, the locking part protrudes into the mounting hole.

[0015] The present invention is further configured such that a positioning component is provided between the drive board and the female ferrule;

[0016] The drive plate has a blocking plate at one end protruding from the female ferrule away from the male ferrule; a return spring is provided between the blocking plate and the female ferrule; the blocking plate has an elastic claw; one end of the elastic claw is fixedly connected to the blocking plate; the other end of the elastic claw has a positioning part; a positioning groove is provided in the drive cavity; the positioning part is movably disposed in the positioning groove.

[0017] The present invention is further configured such that the positioning groove includes a first straight positioning groove, a second straight positioning groove, a first inclined positioning groove, a second inclined positioning groove, a third inclined positioning groove, and a strip-shaped positioning groove; the first straight positioning groove, the second straight positioning groove, and the strip-shaped positioning groove all extend along the length direction.

[0018] The end of the first straight positioning groove near the male connector is connected to one end of the first oblique positioning groove; the other end of the first oblique positioning groove is connected to the end of the strip positioning groove near the male connector; the end of the second straight positioning groove near the male connector is connected to one end of the second oblique positioning groove; the other end of the second oblique positioning groove is connected to the end of the strip positioning groove near the male connector; the end of the second straight positioning groove away from the male connector is connected to one end of the third oblique positioning groove; the other end of the third oblique positioning groove is connected to the middle of the first straight positioning groove.

[0019] The present invention is further configured such that the depths of the first straight positioning groove, the first inclined positioning groove, the strip-shaped positioning groove, and the second inclined positioning groove are the same; the depth of the second straight positioning groove is greater than the depth of the second inclined positioning groove; the depth of one end of the third inclined positioning groove is the same as the depth of the second straight positioning groove; the depth of the other end of the third inclined positioning groove is less than the depth of the first straight positioning groove; the third inclined positioning groove is provided with a positioning inclined surface; when the positioning part moves to the second inclined positioning groove, the elastic claw is arranged parallel to the first straight positioning groove.

[0020] The present invention is further configured such that a trigger plate is telescopically movably provided on the top of the mother shell; the trigger plate is movably and vertically disposed in the buffer cavity; the trigger plate is used to abut against the blocking plate; and a reset spring is provided between the trigger plate and the buffer cavity.

[0021] The present invention is further configured such that a protective sleeve is slidably provided on the outer wall of the mother shell along the length direction; the protective sleeve is provided with a first triggering slope; and the trigger plate is provided with a second triggering slope that cooperates with the first triggering slope.

[0022] The present invention is further configured such that the locking groove is provided with a first exit slope; and the locking block is provided with a second exit slope that cooperates with the locking groove.

[0023] The beneficial effects of the present invention are as follows: The present invention provides a buffer spring between the female ferrule and the buffer cavity, and the female ferrule and the male ferrule are connected by a locking assembly; when the optical cable is subjected to external forces such as pulling, squeezing or collision, the buffer spring can elastically expand and contract to offset the impact force, avoid the external force from being directly transmitted to the internal male and female optical fiber groups, prevent the male and female optical fiber groups from being excessively bent, the core wires from shifting or breaking, and effectively protect the male and female optical fiber groups. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the present invention;

[0025] Figure 2 This is a cross-sectional view of the present invention;

[0026] Figure 3 This is a cross-sectional view from another perspective of the present invention;

[0027] Figure 4 This is a schematic diagram of the structure of the male connector of the present invention;

[0028] Figure 5 This is a schematic diagram of the structure of the female connector of the present invention;

[0029] Figure 6 This is a schematic diagram of the structure of the female connector after the hidden sheath of the present invention is presented;

[0030] Figure 7 This is a cross-sectional view of the female connector of the present invention;

[0031] Figure 8 This is a schematic diagram of the structure of the female ferrule of the present invention;

[0032] Figure 9 This is an internal structural diagram of the female ferrule of the present invention;

[0033] Figure 10 This is an exploded view of the female ferrule of the present invention;

[0034] Figure 11 yes Figure 10 A magnified view of part A in the middle;

[0035] Figure 12 This is an exploded view of the female ferrule of the present invention from another perspective;

[0036] The components include: 1. Male housing; 11. Male ferrule; 12. Male wire hole; 13. Male fiber optic group; 14. Guide pin; 15. Locking groove; 16. First exit ramp; 2. Female housing; 21. Buffer cavity; 22. Buffer spring; 23. Female fiber optic group; 24. Female wire hole; 3. Female ferrule; 31. Mounting hole; 32. Drive cavity; 4. Locking block; 41. Drive unit; 42. Drive pin; 43. Locking unit; 44. Second exit ramp; 5. Drive... 51. Moving plate; 52. Straight drive slot; 53. Inclined drive slot; 54. Blocking plate; 55. Return spring; 6. Elastic claw; 61. Positioning part; 71. First straight positioning slot; 72. Second straight positioning slot; 73. First inclined positioning slot; 74. Second inclined positioning slot; 75. Third inclined positioning slot; 76. Strip positioning slot; 77. Positioning inclined surface; 8. Trigger plate; 81. Return spring; 82. Second trigger inclined surface; 9. Protective sleeve; 91. First trigger inclined surface. Detailed Implementation

[0037] The present invention will be further described in conjunction with the following embodiments.

[0038] Depend on Figures 1 to 12 As can be seen, the multi-core fiber optic MPO connector with reliable connection described in this embodiment includes a male connector and a female connector that mates with the male connector;

[0039] The male connector includes a male housing 1 and a male ferrule 11 disposed at one end of the male housing 1; the end of the male ferrule 11 is provided with a guide pin 14 and a male wire hole 12; a male optical fiber group 13 is provided between the male housing 1 and the male ferrule 11; the end of the male optical fiber group 13 is disposed at the male wire hole 12.

[0040] The female connector includes a female housing 2 and a female ferrule 3 telescopically movably disposed at the end of the female housing 2; the end of the female ferrule 3 is provided with a female wire-passing hole 24 and a mounting hole 31 that mates with a guide pin 14; a female fiber optic assembly 23 is provided between the female housing 2 and the female ferrule 3; the end of the female fiber optic assembly 23 is located at the female wire-passing hole 24; a buffer cavity 21 is provided inside the female housing 2; the end of the female ferrule 3 away from the male ferrule 11 is movably disposed in the buffer cavity 21; a buffer spring 22 is provided between the end of the female ferrule 3 away from the male ferrule 11 and the buffer cavity 21; the female fiber optic assembly 23 passes through the buffer cavity 21; wherein the female fiber optic assembly 23 has a certain redundancy in the buffer cavity 21, so that the female fiber optic assembly 23 is not in a taut state in the buffer cavity 21, which can prevent the female fiber optic assembly 23 from breaking; a locking component is provided between the female ferrule 3 and the male ferrule 11.

[0041] Specifically, in this embodiment, the reliable multi-core fiber optic MPO connector, when the male connector and female connector are mated, aligns the male ferrule 11 with the female ferrule 3, so that the guide pin 14 at the end of the male ferrule 11 is inserted into the mounting hole 31 of the female ferrule 3. At the same time, the end of the male fiber group 13 is aligned through the male cable hole 12 and the end of the female fiber group 23 is aligned through the female cable hole 24. After mating, the locking component between the female ferrule 3 and the male ferrule 11 is automatically triggered, locking and fixing them to prevent them from falling off naturally. If the male connector and the female connector are subjected to external force (such as pulling or squeezing), the end of the female ferrule 3 away from the male ferrule 11 will slide along the inner wall of the buffer cavity 21, compressing or stretching the buffer spring 22. At this time, the female fiber group 23, due to the redundant length pre-set in the buffer cavity 21, will naturally extend or contract with the sliding of the female ferrule 3 and will not be in a taut state.

[0042] In this embodiment, the external force is converted into the elastic potential energy of the buffer spring 22 through the cooperation of the buffer cavity 21 and the buffer spring 22, which effectively offsets the impact of the external force and prevents the external force from being directly transmitted to the male optical fiber group 13 and the female optical fiber group 23, avoiding excessive bending of the optical fiber or displacement of the core wire. The redundant setting of the female optical fiber group 23 further eliminates the risk of the female optical fiber group 23 being pulled off due to the sliding of the female ferrule 3. The locking component ensures the connection stability after the male ferrule 11 and the female ferrule 3 are connected, avoiding loosening of the connection due to vibration or slight collision, and ultimately ensuring the continuity and stability of optical signal transmission, extending the service life of the optical fiber assembly and reducing equipment maintenance costs.

[0043] The multi-core fiber optic MPO connector described in this embodiment has the following characteristics: the insertion direction of the male connector and the female connector is the length direction; the horizontal direction perpendicular to the length direction is the width direction; the mounting hole 31 and the guide pin 14 both extend along the length direction; the female ferrule 3 is telescopically movable at the end of the female housing 2 along the length direction; the end of the female ferrule 3 away from the male ferrule 11 is slidably disposed in the buffer cavity 21 along the length direction.

[0044] Specifically, the insertion direction of the male connector and the female connector is along the length direction, and the horizontal direction perpendicular to the insertion direction is the width direction; both the mounting hole 31 and the guide pin 14 extend along the length direction to ensure that the guide pin 14 can be accurately inserted into the mounting hole 31 along the length direction during mating, avoiding damage to the male ferrule 11 and the female ferrule 3 due to directional deviation; the female ferrule 3 extends and retracts along the length direction at the end of the female housing 2, and its end away from the male ferrule 11 also slides along the length direction in the buffer cavity 21, and the buffer spring 22 also exhibits elasticity along the length direction. The deformation is consistent with the direction of the external force; the above settings provide a unified directional reference for the installation and movement of each component, ensuring the coaxiality of the guide pin 14 and the mounting hole 31, reducing fiber misalignment caused by docking deviation, and improving the optical signal transmission efficiency; the directional sliding of the female ferrule 3 along the length direction avoids its lateral displacement in the buffer cavity 21, prevents the female ferrule 3 from getting stuck in the inner wall of the buffer cavity 21, ensures smooth elastic expansion and contraction of the buffer spring 22, and makes the external force unloading more efficient, while also avoiding the squeezing damage of the female optical fiber group 23 by the lateral force.

[0045] This embodiment describes a reliable multi-core fiber optic MPO connector. The locking assembly includes a locking groove 15 located inside the guide pin 14 and a locking block 4 that extends and retracts along the width direction within the mounting hole 31. When the guide pin 14 of the male ferrule 11 is inserted into the mounting hole 31 of the female ferrule 3 along its length direction, the locking block 4, corresponding to the position of the locking groove 15, extends along the width direction into the mounting hole 31, thereby locking the male ferrule 11 and the female ferrule 3 together. When separation is required, the locking block 4 is driven to retract along the width direction, disengaging from the locking groove 15, allowing the male ferrule 11 to be pulled out.

[0046] This embodiment describes a reliable multi-core fiber optic MPO connector. The female ferrule 3 has a driving cavity 32. A driving plate 5 is slidably disposed within the driving cavity 32 along its length. A mounting hole 31 communicates with the driving cavity 32. A locking block 4 is slidably disposed between the mounting hole 31 and the driving cavity 32 along its width. The locking block 4 includes a driving part 41 and a locking part 43. The locking part 43 is telescopically disposed within the mounting hole 31 and used to lock with the locking groove 15 of the guide pin 14. The driving part 41 has a driving pin 42. The driving plate 5 has a straight driving groove 51 and an oblique driving groove 52. One end of the straight driving groove 51 near the male ferrule 11 communicates with the oblique driving groove 52. The straight driving groove 51 extends along its length. The oblique driving groove 52 and the straight driving groove 51 are inclined together. The driving pin 42 is movably disposed between the straight driving groove 51 and the oblique driving groove 52. When the driving pin 42 moves within the straight driving groove 51, the locking part 43 protrudes into the mounting hole 31. The drive plate 5, with one end protruding from the female ferrule 3 away from the male ferrule 11, is provided with a blocking plate 53; a return spring 54 is provided between the blocking plate 53 and the female ferrule 3. In this embodiment, a reliable multi-core fiber optic MPO connector is provided, in which a trigger plate 8 is telescopically movably mounted on the top of the female housing 2; the trigger plate 8 is movably and vertically mounted in the buffer cavity 21; the trigger plate 8 is used to abut against the blocking plate 53; a return spring 81 is provided between the trigger plate 8 and the buffer cavity 21.

[0047] Specifically, before the male ferrule 11 mates with the female ferrule 3, the drive plate 5 is in its initial position under the action of the return spring 54. At this time, the drive pin 42 is located at the end of the inclined drive groove 52 away from the straight drive groove 51, and the locking part 43 retracts into the drive cavity 32. When it is necessary to mate the male ferrule 11 with the female ferrule 3, the trigger plate 8 is pressed first, causing the trigger plate 8 to move downward. Then, when mates the male ferrule 11 with the female ferrule 3, the guide pin 14 is first inserted into the mounting hole 31, and then the end of the male ferrule 11 mates with the female ferrule 3. The end abuts against the male ferrule 11, causing the female ferrule 3 to move into the buffer cavity 21. When the blocking plate 53 abuts against the trigger plate 8, the blocking plate 53 and the female ferrule 3 move relative to each other, that is, the blocking plate 53 moves relative to the female ferrule 3 toward the male ferrule 11, so that the drive pin 42 moves along the inclined drive groove 52 into the straight drive groove 51, thereby causing the locking part 43 to extend into the mounting hole 31 in the width direction, thereby causing the locking block 4 to be engaged in the locking groove 15, thus achieving the locking of the male ferrule 11 and the female ferrule 3.

[0048] This embodiment describes a reliable multi-core fiber optic MPO connector, wherein a positioning component is provided between the drive board 5 and the female ferrule 3; the blocking plate 53 is provided with an elastic claw 6; one end of the elastic claw 6 is fixedly connected to the blocking plate 53; the other end of the elastic claw 6 is provided with a positioning part 61; a positioning groove is provided in the drive cavity 32; and the positioning part 61 is movably disposed in the positioning groove. This embodiment describes a reliable multi-core fiber optic MPO connector. The positioning slots include a first straight positioning slot 71, a second straight positioning slot 72, a first oblique positioning slot 73, a second oblique positioning slot 74, a third oblique positioning slot 75, and a strip positioning slot 76. The first straight positioning slot 71, the second straight positioning slot 72, and the strip positioning slot 76 all extend along the length direction. The end of the first straight positioning slot 71 near the male ferrule 11 is connected to one end of the first oblique positioning slot 73. The other end of the first oblique positioning slot 73 is connected to the end of the strip positioning slot 76 near the male ferrule 11. The end of the second straight positioning slot 72 near the male ferrule 11 is connected to one end of the second oblique positioning slot 74. The other end of the second oblique positioning slot 74 is connected to the end of the strip positioning slot 76 near the male ferrule 11. The end of the second straight positioning slot 72 away from the male ferrule 11 is connected to one end of the third oblique positioning slot 75. The other end of the third oblique positioning slot 75 is connected to the middle of the first straight positioning slot 71. This embodiment describes a reliable multi-core fiber optic MPO connector. The depths of the first straight positioning groove 71, the first oblique positioning groove 73, the strip-shaped positioning groove 76, and the second oblique positioning groove 74 are the same. The depth of the second straight positioning groove 72 is greater than the depth of the second oblique positioning groove 74. One end of the third oblique positioning groove 75 has the same depth as the second straight positioning groove 72, while the other end has a depth less than the depth of the first straight positioning groove 71. The third oblique positioning groove 75 is provided with a positioning slope 77. When the positioning part 61 moves to the second oblique positioning groove 74, the elastic claw 6 is arranged parallel to the first straight positioning groove 71.

[0049] Specifically, before the male ferrule 11 and the female ferrule 3 are connected, the drive plate 5 is in the initial position under the action of the return spring 54. At this time, the drive pin 42 is located at the end of the inclined drive groove 52 away from the straight drive groove 51, and the locking part 43 retracts into the drive cavity 32. In addition, under the action of the return spring 54, the positioning part 61 is in the initial position, that is, the positioning part 61 is located at the end of the first straight positioning groove 71 away from the male ferrule 11.

[0050] When it is necessary to mate the male ferrule 11 with the female ferrule 3, first press the trigger plate 8 to move it downwards; then, when mate the male ferrule 11 with the female ferrule 3, first insert the guide pin 14 into the mounting hole 31, then the end of the male ferrule 11 abuts against the end of the female ferrule 3, and continue to push the male ferrule 11, causing the female ferrule 3 to move into the buffer cavity 21. When the blocking plate 53 abuts against the trigger plate 8, relative movement occurs between the blocking plate 53 and the female ferrule 3, that is, the blocking plate 53 moves relative to the female ferrule 3 towards the male ferrule 11, so that the drive pin 42 moves along the inclined drive groove 52 into the straight drive groove 51, thereby causing the locking part 43 to extend into the mounting hole 31 in the width direction, thereby causing the locking block 4 to engage in the locking groove 15, realizing the locking of the male ferrule 11 and the female ferrule 3; during this process, the fixed Positioning part 61 moves from the end of the first straight positioning groove 71 away from the male ferrule 11 to the end closer to the male ferrule 11. When positioning part 61 moves to the end of the first straight positioning groove 71 close to the male ferrule 11, the trigger plate 8 and the female ferrule 3 can no longer move relative to each other. At this time, the male ferrule 11 is no longer pushed. Since the elastic claw 6 has deformation in the width direction at this time, and under the action of the return spring 54, positioning part 61 moves along the first inclined positioning groove 73 until positioning part 61 falls into the strip positioning groove 76. At this time, the blocking plate 53 and the female ferrule 3 are locked. The drive pin 42 is located in the middle of the straight drive groove 51, thereby locking the male ferrule 11 and the female ferrule 3. Then the trigger plate 8 is reset. The trigger plate 8 moves upward and no longer abuts against the blocking plate 53, preventing the female ferrule 3 from mis-locking during the buffer sliding process.

[0051] When it is necessary to unlock the male socket 11 and the female socket 3, press the trigger plate 8 again to move it downwards; push the male socket 11 to move the female socket 3 into the buffer cavity 21. When the blocking plate 53 abuts against the trigger plate 8, relative movement occurs between the blocking plate 53 and the female socket 3, that is, the blocking plate 53 moves relative to the female socket 3 towards the male socket 11. The positioning part 61 moves from the end of the strip positioning groove 76 away from the male socket 11 to the end closer to the male socket 11. When the positioning part 61 moves to the connection between the strip positioning groove 76 and the second inclined positioning groove 74, it is no longer pushed. When the male ferrule 11 moves, the elastic claw 6 deforms in the width direction and, under the action of the return spring 54, the positioning part 61 moves sequentially along the second oblique positioning groove 74, the second straight positioning groove 72, the third oblique positioning groove 75, and the first straight positioning groove 71 until the positioning part 61 moves back to the end of the first straight positioning groove 71 away from the male ferrule 11. At this time, the drive pin 42 moves back to the end of the oblique drive groove 52 away from the straight drive groove 51, and the locking part 43 retracts back into the drive cavity 32, thereby unlocking the guide pin 14 from the locking part 43. At this time, the male ferrule 11 can be withdrawn.

[0052] The multi-core fiber optic MPO connector described in this embodiment has a sheath 9 that slides along the length of the outer wall of the female housing 2; the sheath 9 has a first triggering slope 91; and the trigger plate 8 has a second triggering slope 82 that cooperates with the first triggering slope 91. Specifically, when the male ferrule 11 and the female ferrule 3 need to be connected, the protective sleeve 9 is pushed away from the male ferrule 11, which drives the trigger plate 8 to move downward through the first trigger ramp 91 and the second trigger ramp 82. When the male ferrule 11 and the female ferrule 3 are inserted, the protective sleeve 9 is pushed towards the male ferrule 11, so that the protective sleeve 9 can protect both the male ferrule 11 and the female ferrule 3 at the same time. At this time, the protective sleeve 9 no longer abuts against the trigger plate 8. Under the action of the reset spring 81, the trigger plate 8 is reset and moves upward, no longer abutting against the blocking plate 53, preventing the female ferrule 3 from mistakenly locking during the buffer sliding process. When unlocking the male ferrule 11 and the female ferrule 3, the protective sleeve 9 is pushed away from the male ferrule 11 again, which drives the trigger plate 8 to move downward through the first trigger ramp 91 and the second trigger ramp 82.

[0053] This embodiment describes a reliable multi-core fiber optic MPO connector, wherein the locking groove 15 is provided with a first exit ramp 16; and the locking block 4 is provided with a second exit ramp 44 that cooperates with the locking groove 15. This configuration facilitates the exit of the guide pin 14.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A reliable multi-core fiber optic MPO connector, characterized in that: This includes male connectors and female connectors that mate with male connectors; The male connector includes a male housing and a male ferrule located at one end of the male housing; the end of the male ferrule is provided with a guide pin and a male wire hole; a male optical fiber assembly is provided between the male housing and the male ferrule; the end of the male optical fiber assembly is located at the male wire hole; The female connector includes a female housing and a female ferrule that is telescopically movably disposed at the end of the female housing; the end of the female ferrule is provided with a female wire-passing hole and a mounting hole for engaging with a guide pin; a female optical fiber assembly is provided between the female housing and the female ferrule; the end of the female optical fiber assembly is located at the female wire-passing hole; a buffer cavity is provided inside the female housing; the end of the female ferrule furthest from the male ferrule is movably disposed in the buffer cavity; a buffer spring is provided between the end of the female ferrule furthest from the male ferrule and the buffer cavity; the female optical fiber assembly passes through the buffer cavity; A locking assembly is provided between the female ferrule and the male ferrule; The locking assembly includes a locking groove located inside the guide pin and a locking block that is telescopically movable in the mounting hole along the width direction. The female ferrule has a drive cavity; a drive plate is slidably disposed in the drive cavity along the length direction; the mounting hole communicates with the drive cavity; the locking block is slidably disposed between the mounting hole and the drive cavity along the width direction. The locking block includes a driving part and a locking part; the locking part is telescopically movably disposed in the mounting hole and used to lock with the locking groove of the guide pin; the driving part is provided with a driving pin; the driving plate is provided with a straight driving groove and an oblique driving groove; the end of the straight driving groove near the male ferrule is connected to the oblique driving groove; the straight driving groove extends along the length direction; the oblique driving groove and the straight driving groove are inclined; the driving pin is movably disposed between the straight driving groove and the oblique driving groove; when the driving pin moves in the straight driving groove, the locking part protrudes into the mounting hole; A positioning component is provided between the drive board and the female ferrule; The drive plate has a blocking plate at one end protruding from the female ferrule away from the male ferrule; a return spring is provided between the blocking plate and the female ferrule; the blocking plate has an elastic claw; one end of the elastic claw is fixedly connected to the blocking plate; the other end of the elastic claw has a positioning part; a positioning groove is provided inside the drive cavity; the positioning part is movably disposed in the positioning groove. The top of the mother shell is equipped with a trigger plate that can be telescopically moved; the trigger plate is movably moved up and down in the buffer cavity; the trigger plate is used to abut against the blocking plate; a reset spring is provided between the trigger plate and the buffer cavity.

2. The reliable multi-core fiber optic MPO connector according to claim 1, characterized in that: The insertion direction of the male connector and the female connector is the length direction; the direction perpendicular to the length direction in the horizontal direction is the width direction; The mounting hole and guide pin are both extended along the length direction; the female ferrule is telescopically movable at the end of the female housing along the length direction; the end of the female ferrule away from the male ferrule is slidably disposed in the buffer cavity along the length direction.

3. The reliable multi-core fiber optic MPO connector according to claim 1, characterized in that: The positioning groove includes a first straight positioning groove, a second straight positioning groove, a first inclined positioning groove, a second inclined positioning groove, a third inclined positioning groove, and a strip-shaped positioning groove; the first straight positioning groove, the second straight positioning groove, and the strip-shaped positioning groove all extend along the length direction. The end of the first straight positioning groove near the male connector is connected to one end of the first oblique positioning groove; the other end of the first oblique positioning groove is connected to the end of the strip positioning groove near the male connector; the end of the second straight positioning groove near the male connector is connected to one end of the second oblique positioning groove; the other end of the second oblique positioning groove is connected to the end of the strip positioning groove near the male connector; the end of the second straight positioning groove away from the male connector is connected to one end of the third oblique positioning groove; the other end of the third oblique positioning groove is connected to the middle of the first straight positioning groove.

4. A reliable multi-core fiber optic MPO connector according to claim 3, characterized in that: The depths of the first straight positioning groove, the first inclined positioning groove, the strip positioning groove, and the second inclined positioning groove are the same; the depth of the second straight positioning groove is greater than the depth of the second inclined positioning groove; the depth of one end of the third inclined positioning groove is the same as the depth of the second straight positioning groove; the depth of the other end of the third inclined positioning groove is less than the depth of the first straight positioning groove; the third inclined positioning groove is provided with a positioning inclined surface; when the positioning part moves to the second inclined positioning groove, the elastic claw is arranged parallel to the first straight positioning groove.

5. A reliable multi-core fiber optic MPO connector according to claim 1, characterized in that: The outer wall of the mother shell is provided with a protective sleeve that slides along the length direction; the protective sleeve is provided with a first triggering slope; the trigger plate is provided with a second triggering slope that cooperates with the first triggering slope.

6. A reliable multi-core fiber optic MPO connector according to claim 1, characterized in that: The locking groove is provided with a first exit slope; the locking block is provided with a second exit slope that cooperates with the locking groove.

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