WO2023245956A1

WO2023245956A1 - Multi-core optical fiber connector

Info

Publication number: WO2023245956A1
Application number: PCT/CN2022/130195
Authority: WO
Inventors: 刘丙利
Original assignee: 深圳市埃立康科技有限公司
Priority date: 2022-06-21
Filing date: 2022-11-07
Publication date: 2023-12-28
Also published as: CN217820965U

Abstract

A multi-core optical fiber connector, comprising a housing (1), a ferrule (2), a stopper (4), a main body (5), and a crimp ring (6). One end of the ferrule (2) is provided with multiple optical fiber insertion holes which are in one-to-one correspondence with optical fiber cables. The ferrule (2) abuts against the stopper (4) by means of an elastic member (3) and is fixed inside the housing (1). The housing (1) is used for being fastened to the stopper (4). The stopper (4) and the crimp ring (6) are arranged separately and respectively located at the two ends of the main body (5), wherein a clamping part (43) is arranged at one end of the stopper (4) close to the main body (5), a connecting assembly (7) is arranged at the end of the main body (5) close to the stopper (4), and the connecting assembly (7) comprises a matching part (71) matched with the clamping part (43). One end of the crimp ring (6) is crimped to the other end of the main body (5), wherein the main body (5) is fastened to a metal member (51), one end of the metal member (51) is partially covered in the main body (5), and one end of the crimp ring (6) is crimped on the metal member (51) and covers the metal member (51) so as to be crimped to the main body (5). The stopper (4) and the crimp ring (6) are separately arranged at the two ends of the main body (5), and the two ends of the stopper (4) are respectively connected to the metal member (51) and crimped to the metal member (51), so that the connection stability and the connection accuracy of the multi-core optical fiber connector for indoor use can be improved.

Description

Multi-core fiber optic connector

Technical field

The present application relates to the technical field of optical fiber communication physical connection, and in particular to a multi-core optical fiber connector.

Background technique

When making optical fiber connections, optical fiber connectors are required to connect optical fibers to optical fibers. The ferrule in the multi-core optical fiber connector is connected to multiple optical fiber cables. Depending on the number of optical fiber cables connected to the ferrule, it may have a variety of different specifications (such as 12 cores, 24 cores, etc.), so it can be passed through one Multi-core fiber optic connectors are used to connect multiple fiber optic cables.

At present, for multi-core optical fiber connectors used indoors, the fixation and tensile strength of the internal optical fiber in the multi-core optical fiber connector is usually achieved through the crimping between the stopper and the optical fiber connector body. However, using this method Multi-core optical fiber connectors have average performance in terms of fixation and tensile strength, and can only be used indoors in relatively stable environments. When this type of multi-core optical fiber connector is used in complex and changeable outdoor environments, it is easy to Affected by various factors such as weather factors, environmental factors and human factors, the relative movement between the stopper and the multi-core optical fiber connector body may occur, or even the connection between the stopper and the multi-core optical fiber connector body may be broken. If it is opened, it will cause damage to the optical fiber inside the multi-core optical fiber connector, thus affecting the connection accuracy of the optical fiber connection.

Therefore, how to improve the connection stability and connection accuracy of multi-core optical fiber connectors used indoors so that they can also be used in outdoor environments has become an urgent technical problem to be solved.

Contents of the invention

This application provides a multi-purpose optical fiber connector and an optical fiber adapter to improve the connection stability and connection accuracy of multi-core optical fiber connectors used indoors.

In a first aspect, the application provides a multi-core optical fiber connector, which is characterized in that it includes a shell, a ferrule, a stopper, a main body and a crimping ring, and a shell, a ferrule, a stopper, a main body and a crimping ring. Coaxially arranged, the housing, stopper, main body and crimping ring are all hollow structures for fiber optic cables to pass through, among which:

One end of the ferrule is provided with a plurality of fiber optic jacks, and the fiber optic jacks correspond to the fiber optic cables one by one, so that the plurality of fiber optic cables can be inserted into each fiber optic jack respectively. The ferrule contacts the stopper through an elastic component. The parts are fixed inside the shell, and the shell is used to be tightly connected with the stopper;

The stopper and the crimp ring are set separately and located at both ends of the body, where:

One end of the stopper close to the main body is provided with a snap-in portion, and one end of the main body close to the stopper is provided with a connecting component. The connecting component includes a fitting portion adapted to the snap-in portion. When the snap-in portion matches the fitting portion, the stopper The component is connected to the connecting component and restricts the relative movement between the stopper and the connecting component;

One end of the crimping ring is crimped to the other end of the main body. The end of the main body away from the stopper is fastened with a metal piece. The metal piece is a hollow structure. One end of the metal piece is partially covered in the main body. The crimping ring is One end is crimped on the metal piece and covers the metal piece to be crimped with the main body, wherein the inner diameter of the end of the crimping ring that is crimped to the metal piece is larger than the inner diameter of the end of the crimping ring away from the metal piece.

Optionally, the engaging portion is at least one protrusion provided along the circumferential direction, and the fitting portion is at least one groove provided along the circumferential direction to cooperate with the protrusion; or

The engaging portion is at least one groove provided along the circumferential direction, and the fitting portion is at least one protrusion provided along the circumferential direction to cooperate with the groove;

When the engaging portion is a plurality of protrusions arranged along the circumferential direction, each of the plurality of protrusions is spaced apart by a preset distance, and when the mating portion is a plurality of grooves arranged along the circumferential direction, the plurality of grooves Each line in is separated by a preset distance;

When the engaging portion is a plurality of grooves arranged along the circumferential direction, each of the plurality of grooves is spaced apart by a preset distance, and when the mating portion is a plurality of protrusions arranged along the circumferential direction, the plurality of protrusions Each line is separated by a preset distance.

Optionally, the latching part is at least one buckle provided along the circumferential direction, and the fitting part is at least one latching hole provided along the circumferential direction to cooperate with the buckle.

Optionally, also includes:

The heat shrink sleeve covers the end of the main body away from the stopper and is fixedly connected to the main body. When the heat shrink sleeve is fixedly connected to the main body, the heat shrink sleeve covers the metal parts and the crimping ring.

Optionally, a concave and convex structure is provided on the outer side wall of the metal piece.

Optionally, the connection assembly also includes a cover piece and a bottom piece, the bottom piece is fixedly connected to the main body, the cover piece and the bottom piece are snap-connected, and the bottom piece and the cover piece are both provided with mating parts that are adapted to the snap-in parts.

Optionally, the base sheet, the main body and the metal piece are an integrally formed structure, the metal piece is partially embedded in the main body and at least part of the metal piece is exposed, and at least the exposed part of the metal piece is crimped with the crimping ring; or

The metal parts are fastened to the main body through threads.

Optionally, also includes:

The cover is placed on the casing, and the cover and the casing are detachably connected so that the cover can be replaced to adapt to other third-party optical fiber connection equipment.

Optionally, the end face of the end of the ferrule with the optical fiber jack is also provided with a limiting piece, and the limiting piece cooperates with the matching piece on the third-party optical fiber connection device to align the ferrule with the third-party optical fiber connection device for connection. Wherein, the limiting member includes pins or pin grooves.

Optionally, the elastic component is disposed between the ferrule and the stopper, one end of the elastic component is in contact with the end of the ferrule away from the optical fiber jack, and the other end of the elastic component is in contact with the end of the stopper away from the main body, where , the elastic component includes a spring.

This application discloses a multi-core optical fiber connector, which includes a shell, a ferrule, a stopper, a main body and a crimping ring, wherein: one end of the ferrule is provided with a plurality of optical fiber jacks; the stopper and the crimping ring are separated is provided and located at both ends of the main body respectively, wherein: the stopper is provided with a snap-in portion at one end close to the main body, and a connecting component is provided at one end of the main body close to the stopper. The connection component includes a mating portion adapted to the snap-in portion. The cooperation between the clamping part and the mating part can limit the relative movement between the stopper and the connecting component, thereby avoiding damage to the internal optical fiber cable, thereby improving the connection stability of the multi-core optical fiber connector and improving the Connection accuracy; the end of the main body away from the stopper is fixed with a metal piece, one end of the metal piece is partially covered in the main body, and one end of the crimping ring is crimped on the metal piece and covers the metal piece to connect with the main body. The metal part is partially arranged in the main body to support the main body, so that when the crimping ring is connected to the main body through crimping with the metal part, the connection strength between the crimping ring and the main body is increased, thereby improving The connection stability of multi-core fiber optic connectors improves connection accuracy. The stopper and the crimping ring are separately arranged at both ends of the main body, and the stoppers are connected and the metal parts are crimped at both ends respectively, making full use of the space of the main body to improve the connection stability of the multi-core optical fiber connector. and connection strength, thereby improving connection accuracy.

Description of the drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application, which are of great significance to this field. Ordinary technicians can also obtain other drawings based on these drawings without exerting creative work.

Figure 1 is a schematic exploded structural diagram of a multi-core optical fiber connector provided by an embodiment of the present application;

Figure 2 is a cross-sectional view of a multi-core optical fiber connector provided by an embodiment of the present application;

Figure 3 is a schematic structural diagram of a stopper of a multi-core optical fiber connector provided by an embodiment of the present application;

Figure 4 is a schematic structural diagram of a connection component provided by an embodiment of the present application;

Figure 5 is a schematic diagram of a cover provided by an embodiment of the present application;

Figure 6 is a schematic diagram of another cover provided by an embodiment of the present application.

Detailed ways

The present application is described below based on examples, but the present application is not limited only to these examples. In the following detailed description of the present application, some specific details are described in detail. In order to avoid confusing the essence of the present application, well-known methods, processes, and components are not described in detail.

Furthermore, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and that the drawings are not necessarily drawn to scale.

Unless the context clearly requires otherwise, throughout the specification and claims, the words “include,” “include,” and similar words shall be interpreted in an inclusive sense rather than in an exclusive or exhaustive sense; that is, as “including but not limited to” meaning.

In the description of the present application, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and shall not be understood as indicating or implying relative importance. Furthermore, in the description of the present application, unless otherwise stated, the meaning of “plurality” is two or more.

Please refer to FIG. 1 , which is a schematic diagram of an exploded structure of a multi-core optical fiber connector provided by an embodiment of the present application. The multi-purpose optical fiber connector includes a shell 1, a ferrule 2, a stopper 4, a main body 5 and a crimping ring 6. The shell 1, the ferrule 2, the stopper 4, the main body 5 and the crimping ring 6 are coaxially arranged. The shell 1, the stopper 4, the main body 5 and the crimping ring 6 are all hollow structures for the optical fiber cable to pass through. . in:

One end of the ferrule 2 is provided with a plurality of fiber optic jacks, and the fiber optic jacks correspond to the fiber optic cables one by one, so that multiple fiber optic cables can be inserted into each fiber optic jack respectively. The ferrule 2 is contacted by the elastic component 3 At the stopper 4 and fixed inside the housing 1, the housing 1 is used to be tightly connected with the stopper 4.

One end of the ferrule 2 can be provided with multiple fiber optic jacks. The number of fiber optic jacks is consistent with the number of fiber optic cables connected to the multi-core fiber optic connector. One end of the fiber optic cable is inserted into the fiber optic jack to pass through the ferrule. 2. Transmit optical signals with third-party optical fiber connection equipment. Among them, the third-party optical fiber connection device can be an optical fiber adapter, or other equipment such as a female end or socket that can be connected to a multi-core optical fiber connector.

In one embodiment, the elastic component 3 is disposed between the ferrule 2 and the stopper 4. One end of the elastic component 3 is in contact with the end of the ferrule 2 away from the optical fiber jack, and the other end of the elastic component 3 is in contact with the stopper. 4 is in contact with one end away from the main body 5 . The setting of the elastic component 3 can push the ferrule 2 when the multi-core optical fiber connector is connected to a third-party optical fiber connection device, so that the ferrule 2 can be connected to the interference connection of the third-party optical fiber connection device, reducing the loss of optical signals and improving the connection accuracy. . In specific implementation, the elastic component 3 may be a spring.

In one embodiment, please refer to Figures 2 and 3. Figure 2 is a cross-sectional view of a multi-core optical fiber connector provided by an embodiment of the present application, and Figure 3 is a stopper of a multi-core optical fiber connector provided by an embodiment of the present application. Structural diagram. As shown in Figures 1 to 3, one end of the stopper 4 away from the main body 5 is provided with connection cards 41 opposite to each other in the circumferential direction. In the specific implementation process, the number of the connection cards 41 can be two, and the two connection cards 41 relative settings. The connection card 41 is provided with a connecting part 42, and the inner wall of the housing 1 is provided with an adapting part 11 that cooperates with the connecting part 42. The housing 1 is tightly connected to the stopper 4 through the cooperation of the connecting part 42 and the adapting part 11. , and when the housing 1 is tightly connected to the stopper 4, the ferrule 2 and the elastic component 3 are both fixed inside the housing 1, that is to say, the housing 1 covers the ferrule 2 and the elastic component 3, and holds the ferrule 2 and the position of the elastic component 3 is fixed.

In one embodiment, the housing 1 is also provided with a keyway, and the keyway cooperates with the guide groove on the third-party optical fiber connection device to align the ferrule 2 with the third-party optical fiber connection device when the multi-core optical fiber connector is connected to the third-party optical fiber connection device. The connection direction of the third-party optical fiber connection equipment is guided so that the multi-core optical fiber connector and the third-party optical fiber connection equipment can be connected in the correct connection direction to avoid the connection of the ferrule 2 and/or the ferrule 2 due to the wrong connection direction. In case of damage to the optical fiber, the connection accuracy is guaranteed.

As shown in Figure 1, the stopper 4 and the crimp ring 6 are separately provided and located at both ends of the main body 5 respectively, where:

Please refer to FIG. 4 , which is a schematic structural diagram of a connection component provided by an embodiment of the present application. As shown in Figures 1 and 4, the stopper 4 is provided with a snap portion 43 at one end close to the main body 5, and the main body 5 is provided with a connecting component 7 at one end close to the stopper 4. The connection component 7 includes a snap portion 43 The adapted fitting portion 71 , when the snapping portion 43 matches the fitting portion 71 , the stopper 4 is connected to the connecting component 7 and limits the relative movement between the stopper 4 and the connecting component 7 . Through the cooperation between the latch portion 43 and the mating portion 71, the relative movement between the stopper 4 and the connecting component 7 can be restricted, thereby avoiding damage to the optical fiber cable inserted inside the multi-core optical fiber connector. This improves the connection stability of multi-core optical fiber connectors and ensures connection accuracy.

In one embodiment, the engaging portion 43 is provided along the circumferential direction of the stopper 4 , and the length of the engaging portion 43 is smaller than the circumference of the stopper 4 , and the fitting portion 71 is provided along the circumferential direction on the inner wall of the connecting component 7 above, and the fitting part 71 is adapted to the clamping part 43 and has the same length as the clamping part 43 . The engaging portion 43 is disposed on the stopper 4 along the circumferential direction. The length of the engaging portion 43 is smaller than the circumference of the stopper 4 . That is to say, the engaging portion 43 is not disposed on the stopper 4 along the circumferential direction. not a complete ring, but a discontinuous structure, as shown in Figure 3. Similarly, the fitting portion 71 adapted to the latch portion 43 is also an interrupted structure, as shown in FIG. 4 . Moreover, the fitting portion 71 is adapted to the snap-connecting portion 43 and has the same length as the snap-connecting portion 43. The same means that the length of the fitting portion 71 allows for a matching error with the length of the snap-connecting portion 43, and does not necessarily require matching. The length of the portion 71 is completely equal to the length of the engaging portion 43 . The intermittent structure of the fitting portion 71 and the engaging portion 43 can limit the circumferential relative rotation and axial relative rotation between the stopper 4 and the connecting component 7 through the engagement between the engaging portion 43 and the engaging portion 71 . Movement, and the length of the engaging portion 43 and the matching portion 71 is the same, the connection between the stopper 4 and the connecting component 7 can be tightened, and the circumferential relative relationship between the stopper 4 and the connecting component 7 can be further restricted. Rotational and axial relative movement, thereby avoiding damage to the optical fiber cable inserted inside the multi-core optical fiber connector due to relative movement between the stopper 4 and the connecting component 7, and improving the connection stability of the multi-core optical fiber connector. , ensuring connection accuracy.

One end of the crimping ring 6 is crimped to the other end of the main body 5. The end of the main body 5 away from the stopper 4 is fastened with a metal piece 51. The metal piece 51 is a hollow structure, and one end of the metal piece 51 is partially covered with In the main body 5, one end of the crimping ring 6 is crimped on the metal piece 51 and covers the metal piece 51 to be crimped with the main body 5. The inner diameter of the end of the crimping ring 6 that is crimped to the metal piece 51 is larger than the crimping ring 6. The ring 6 is away from the inner diameter of one end of the metal piece 51 . The metal piece 51 is partially disposed in the main body 5, and the part disposed in the main body 5 supports the main body 5, so that when the crimp ring 6 is connected to the main body through crimping with the metal piece 51, it is not easy to Crush the part of the main body 5 that is crimped with the crimping ring 6 to increase the connection strength between the crimping ring 6 and the main body 5, improve the connection stability of the multi-core optical fiber connector, and ensure the connection accuracy.

In addition, the stopper 4 and the crimping ring 6 are separately provided at both ends of the main body 5. One end restricts the relative movement between the stopper 4 and the connecting component 7 to improve the connection stability, and the other end increases the crimping strength. , increase the connection strength, make full use of the space of the main body 5, so that there is a larger connection space for tensile and stability settings, improve the connection stability and connection strength of the multi-core optical fiber connector, and thereby improve the connection accuracy.

In one embodiment, the engaging portion 43 is at least one protrusion provided along the circumferential direction, and the fitting portion 71 is at least one groove provided along the circumferential direction to cooperate with the protrusion. During specific implementation, the number of snapping parts 43 needs to be less than or equal to the number of matching parts 71 .

Wherein, when the engaging portion 43 is a plurality of protrusions arranged along the circumferential direction, each of the plurality of protrusions is spaced apart by a preset distance, and when the fitting portion 71 is a plurality of grooves arranged along the circumferential direction, Each of the plurality of grooves is spaced a preset distance apart. The preset distance between each of the plurality of protrusions in the latch portion 43 can be the same or different, and the preset distance between each of the plurality of grooves in the mating portion 71 can be It can be the same or different, but the specific value needs to be determined according to the position of the protrusion it matches.

Alternatively, the engaging portion 43 is at least one groove provided along the circumferential direction, and the fitting portion 71 is at least one protrusion provided along the circumferential direction to cooperate with the groove. During specific implementation, the number of the snap-in parts 43 needs to be greater than or equal to the number of the matching parts 71 .

Wherein, when the engaging portion 43 is a plurality of grooves arranged along the circumferential direction, each of the plurality of grooves is spaced apart by a preset distance, and when the fitting portion 71 is a plurality of protrusions arranged along the circumferential direction, Each of the plurality of protrusions is spaced a preset distance apart. The preset distance between each of the plurality of grooves in the clamping portion 43 can be the same or different, and the preset distance between each of the plurality of protrusions in the mating portion 71 can be They can be the same or different, but the specific value needs to be determined according to the position of the groove it fits.

In another embodiment, the engaging portion 43 is at least one buckle provided along the circumferential direction, and the fitting portion 71 is at least one latching hole provided along the circumferential direction to cooperate with the buckle. During specific implementation, the fitting portion 71 can be disposed through the side wall of the main body 5 as a through-clip hole. In addition, the number of clip holes needs to be no less than the number of buckles.

The above three clamping methods can limit the relative movement between the stopper 4 and the connection component 7 after the stopper 4 and the connection component 7 are fixedly connected, where this relative movement includes the stopper 4 and the connection component 7 The relative rotation and relative sliding along the axial direction can avoid damage to the optical fiber cable inserted inside the multi-core optical fiber connector and improve the tensile effect, thereby improving the connection stability of the multi-core optical fiber connector and ensuring Connection accuracy.

In one embodiment, as shown in Figure 4, the connection component 7 also includes a cover piece 72 and a bottom piece 73. The bottom piece 73 is fixedly connected to the main body 5. The cover piece 72 and the bottom piece 73 are snap-connected. The bottom piece 73 and the cover piece 72 are Both are provided with a matching portion 71 that matches the latching portion 43 . The connection assembly 7 includes a cover piece 72 and a base piece 73. When the stopper 4 is connected to the connection assembly 7, the snap portion 43 of the stopper 4 can be aligned with the mating portion 71, and then the cover piece 72 and the base piece 73 are connected. Snap connection, at this time the snap portion 43 is in contact with the matching portion 71 , and the connection component 7 is fixedly connected to the stopper 4 .

In the specific implementation process, the bottom sheet 73 can be integrally formed with the main body 5 and fixedly connected. The bottom sheet 73 can also be fixedly connected with the main body 5 in a threaded manner. Preferably, the bottom sheet 73 can be integrally formed with the main body 5 .

In one embodiment, the bottom sheet 73 , the main body 5 and the metal piece 51 are an integrally formed structure. The metal piece 51 is partially embedded in the main body 5 and at least part of the metal piece 51 is exposed. At least the exposed part of the metal piece 51 is in crimping contact with the crimping ring 6 . In the specific implementation process, the metal piece 51 can be directly injection molded together with the main body 5 during injection molding, and an integrated molding design can be carried out, so that the metal piece 51 is partially embedded in the main body 5 and partially exposed from the main body 5. The metal piece 51 is exposed The part is crimped with the crimping ring 6. Compared with the fixed connection between the metal part 51 and the main body 5 after the injection molding is completed, the one-piece injection molding method can improve the fixing strength between the metal part 51 and the main body 5, and further improve the connection between the metal part 51 and the main body 5. When the crimping ring 6 is crimped, the crimping strength between the crimping ring 6 and the main body 5 is improved and the tensile effect is improved, thereby improving the connection strength of the multi-core optical fiber connector and ensuring the connection accuracy.

Alternatively, the metal piece 51 is fastened to the main body 5 through threads. During the specific implementation process, the bottom sheet 73 can also be designed to be integrally formed with the main body 5, thereby increasing the tightness of the connection between the connecting component 7 and the main body 5 and improving the tensile effect. In addition, both the metal piece 51 and the main body 5 may be provided with threads, and the metal piece 51 is connected to the main body 5 through threads. Preferably, the metal part 51 is provided with external threads, and one end of the main body 5 is provided with internal threads that match the external threads. In this connection method, after the connection is completed, the part of the metal part 51 is located inside the main body 5 , relative to the metal part 51 Internal threads are provided on the main body 5 and external threads are provided on the main body 5. After the connection, the metal piece 51 is connected to the outside of the main body 5. This method can increase the number of parts of the main body 5 for crimping when the crimping ring 6 is crimped. Strength, it is not easy to crush the part of the main body 5 that is crimped with the crimping ring 6, and the connection strength between the crimping ring 6 and the main body 5 is increased, thereby improving the connection stability of the multi-core optical fiber connector and ensuring the connection accuracy.

In one embodiment, the outer side wall of the metal piece 51 is provided with a concave and convex structure. Among them, the concave-convex structure can be a variety of structures such as stripes, knurling, grooves or protrusions. The concave-convex structure can increase the friction between the metal part 51 and the crimping ring 6 when the metal part 51 is pressed against the crimping ring 6, thereby improving the tensile effect between the metal part 51 and the crimping ring 6 and increasing the connection strength, thereby improving connection accuracy.

In one embodiment, as shown in Figure 1, the multi-core optical fiber connector also includes: a heat shrink sleeve 8, which is covered at the end of the main body 5 away from the stopper 4 and is fixedly connected to the main body 5. When heat shrinkable, When the sleeve 8 is fixedly connected to the main body 5 , the heat shrink sleeve 8 covers the metal piece 51 and the crimping ring 6 .

After the crimping ring 6 is crimped, the heat shrink sleeve 8 is sheathed from the end of the main body 5 away from the stopper 4 , and is heat-shrunk after the sheathing is completed to be fixedly connected to the main body 5 . When the heat shrink sleeve 8 is fixedly connected to the main body 5, the heat shrink sleeve 8 covers both the metal piece 51 and the crimp ring 6, further increasing the crimp strength of the metal piece 51 and the crimp ring 6, and improving the Tensile effect, thereby improving connection accuracy.

In one embodiment, please refer to FIGS. 5 and 6 . FIG. 5 is a schematic diagram of a cover provided by an embodiment of the present application; FIG. 6 is a schematic diagram of another cover provided by an embodiment of the present application.

As shown in Figures 5 and 6, the multi-core optical fiber connector also includes a cover 9, which is covered on the housing 1, and the cover 9 is detachably connected to the housing 1 to replace the cover 9 to adapt to other third connectors. Three-party fiber optic connection equipment. In the specific implementation process, the cover 9 can be directly covered on the housing 1 and detachably connected to the housing 1. When the multi-core optical fiber connector needs to be adapted to third-party optical fiber connection equipment of different manufacturers, it can be covered or detachably connected to the housing 1. The cover 9 is replaced to realize the multi-purpose use of a multi-core optical fiber connector and improve the adaptability of the multi-core optical fiber connector.

In one embodiment, a limiter 21 is also provided on the end face of the end of the ferrule 2 where the optical fiber jack is provided. The limiter 21 cooperates with a matching piece on the third-party optical fiber connection device to align the ferrule 2 with the third party. Optical fiber connection equipment is used for connection, wherein the limiting member 21 includes a pin or a needle slot. It can be understood that when the limiting member 21 on the ferrule 2 is a pin, the matching member on the third-party optical fiber connection device is a pin slot; when the limiting member 21 on the ferrule 2 is a needle slot, the third-party optical fiber connecting device The mating parts on the fiber optic connection equipment are pins. Through the cooperation between the limiter 21 and the mating piece, the connection between the multi-core optical fiber connector and the third-party optical fiber connection equipment is positioned, which can reduce the risk of misoperation or incorrect connection position during the connection. reduce the loss of optical signals and improve connection accuracy.

In one embodiment, please refer to Figure 1. The multi-core optical fiber connector can also be covered with a connecting nut 10. The connecting nut 10 can slide back and forth on the main body 5 for fastening with third-party optical fiber connecting equipment.

In one embodiment, please refer to FIG. 1 , the multi-core optical fiber connector further includes a tail sleeve 11 . The tail boot 11 is detachably connected to the end of the main body 5 away from the stopper 4. The tail boot 11 is a hollow structure and is used for passing optical fiber cables. During specific implementation, the tail boot 11 can be covered on the heat shrink sleeve 8 to achieve a detachable connection between the tail boot 11 and the main body 5 .

Please refer to Figure 1. The multi-purpose optical fiber connector also includes a connecting tie 12. One end of the connecting tie 12 is provided with a first ring, the other end of the connecting tie 12 is provided with a second ring, and one end of the connecting tie 11 is provided. The first ring is covered on the tail boot 11, and the other end is covered on the cover 9 through the second ring, so that the tail boot 11 and the cover 9 are connected. By connecting the first ring and the second ring at both ends of the cable tie 12, the cover body 9 can be connected to the tail sleeve 11, and the cover body 9 can be connected to the multi-core optical fiber connector through the connection cable tie 12 to prevent Cover 9 is missing. Among them, the connecting tie 12 can be a nylon tie with better durability or a tie made of other materials such as plastic.

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person familiar with the technical field can easily think of various equivalent methods within the technical scope disclosed in the present application. Modification or replacement, these modifications or replacements shall be covered by the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

A multi-core optical fiber connector, characterized in that it includes a shell (1), a ferrule (2), a stopper (4), a main body (5) and a crimping ring (6). The shell (1), The ferrule (2), the stopper (4), the main body (5) and the crimping ring (6) are coaxially arranged, and the housing (1), the stopper (4) ), the main body (5) and the crimping ring (6) are all hollow structures for optical fiber cables to pass through, wherein:

One end of the ferrule (2) is provided with a plurality of fiber optic jacks, and the fiber optic jacks correspond to the fiber optic cables one by one, so that the plurality of fiber optic cables can be inserted into each fiber optic plug. In the hole, the ferrule (2) contacts the stopper (4) through the elastic component (3) and is fixed inside the housing (1). The housing (1) is used to communicate with the stopper (4). The stopper (4) is tightly connected;

The stopper (4) and the crimping ring (6) are provided separately and are respectively located at both ends of the main body (5), where:

The stopper (4) is provided with a clamping portion (43) at one end close to the main body (5), and the main body (5) is provided with a connecting component (7) at one end close to the stopper (4). , the connection component (7) includes a fitting part (71) adapted to the clamping part (43), and when the clamping part (43) matches the fitting part (71), the stopper The moving member (4) is connected to the connecting component (7) and limits the relative movement between the stopper (4) and the connecting component (7);

One end of the crimping ring (6) is crimped to the other end of the main body (5), wherein an end of the main body (5) away from the stopper (4) is fastened with a metal piece (51 ), the metal piece (51) is a hollow structure, one end of the metal piece (51) is partially covered in the main body (5), and one end of the crimping ring (6) is crimped on the metal The metal piece (51) is placed on the piece (51) and covered with the metal piece (51) to be crimped with the main body (5), wherein one end of the crimping ring (6) is crimped with the metal piece (51). The inner diameter is larger than the inner diameter of the end of the crimping ring (6) away from the metal piece (51).
The multi-core optical fiber connector according to claim 1, characterized in that the clamping part (43) is at least one protrusion arranged along the circumferential direction, and the fitting part (71) is an integral part arranged along the circumferential direction. at least one groove that the protrusion fits; or

The engaging portion (43) is at least one groove provided along the circumferential direction, and the fitting portion (71) is at least one protrusion provided along the circumferential direction to cooperate with the groove;

When the engaging portion (43) is a plurality of protrusions arranged along the circumferential direction, each of the plurality of protrusions is spaced apart by a preset distance, and when the fitting portion (71) is a plurality of protrusions arranged along the circumferential direction, When multiple grooves are provided, each of the plurality of grooves is spaced apart by a preset distance;

When the engaging portion (43) is a plurality of grooves arranged along the circumferential direction, each of the plurality of grooves is spaced apart by a preset distance, and when the fitting portion (71) is formed along the circumferential direction, When multiple protrusions are provided, each of the plurality of protrusions is spaced apart by a preset distance.
The multi-core fiber optic connector according to claim 1, characterized in that the clamping part (43) is at least one buckle arranged along the circumferential direction, and the fitting part (71) is an engaging part arranged along the circumferential direction. At least one snap-fit hole.
The multi-core optical fiber connector according to claim 1, further comprising:

The heat shrinkable sleeve (8) covers the end of the main body (5) away from the stopper (4) and is fixedly connected to the main body (5). When the heat shrinkable sleeve (8) and When the main body (5) is fixedly connected, the heat shrink sleeve (8) covers the metal piece (51) and the crimping ring (6).
The multi-core optical fiber connector according to claim 1, characterized in that the outer wall of the metal piece (51) is provided with a concave and convex structure.
The multi-core optical fiber connector according to claim 1, characterized in that the connection component (7) further includes a cover piece (72) and a bottom piece (73), and the bottom piece (73) and the main body (5) Fixed connection, the cover sheet (72) and the bottom sheet (73) are snap-connected, and the bottom sheet (73) and the cover sheet (72) are both provided with a snap-fitting portion (43). Cooperation Department (71).
The multi-core optical fiber connector according to claim 6, characterized in that the bottom sheet (73), the main body (5) and the metal piece (51) are an integrally formed structure, and the metal piece (51) Partially embedded in the main body (5) and at least part of the metal piece (51) exposed, at least the exposed part of the metal piece (51) is crimped with the crimp ring (6); or

The metal piece (51) is tightly connected to the main body (5) through threads.
The multi-core optical fiber connector according to claim 1, further comprising:

The cover (9) covers the shell (1), and the cover (9) is detachably connected to the shell (1) to replace the cover (9) to adapt to other third Three-party fiber optic connection equipment.
The multi-core optical fiber connector according to claim 1, characterized in that a limiter (21) is provided on the end face of one end of the ferrule (2) where the optical fiber jack is provided, and the limiter (21) ) cooperates with the matching piece on the third-party optical fiber connection device to align the ferrule (2) with the third-party optical fiber connection device for connection, wherein the limiting member (21) includes a pin or needle groove.
The multi-core optical fiber connector according to claim 1, characterized in that the elastic component (3) is provided between the ferrule (2) and the stopper (4), and the elastic component (3) One end of 3) is in contact with the end of the ferrule (2) away from the optical fiber jack, and the other end of the elastic member (3) is in contact with the stopper (4) away from the main body (5). One end abuts, wherein the elastic component (3) includes a spring.
The multi-core optical fiber connector according to any one of claims 1 to 10, characterized in that the clamping portion (43) is provided along the circumferential direction of the stopper (4), and the clamping portion The length of the part (43) is less than the circumference of the stopper (4), the fitting part (71) is provided on the inner wall of the connecting component (7) along the circumferential direction, and the fitting part (71) ) is adapted to the clamping part (43) and has the same length as the clamping part (43).