CN112987191A

CN112987191A - MPO fiber connector

Info

Publication number: CN112987191A
Application number: CN202110374039.XA
Authority: CN
Inventors: 李旭东; 李润
Original assignee: T&S Communications Co Ltd
Current assignee: T&S Communications Co Ltd
Priority date: 2021-04-07
Filing date: 2021-04-07
Publication date: 2021-06-18

Abstract

The utility model provides a MPO fiber connector, including the lock sleeve, the lock pin, the area is fine, the optical cable, a spring, spring base and sheath, install the lock pin in the lock sleeve, the lock pin is connected the one end of fine, the optical cable is connected to the other end of area fibre, the optical cable wears out through the sheath, spring mounting is on spring base, the lock sleeve is in the same place and hold-down spring with spring base locking assembly, the spring applys to the lock pin and compresses tightly elastic force, spring base is split type structure's spring base, spring base includes but first base subassembly and the second base subassembly of split, the spring includes first spring element and second spring element, first spring element detachably assembles on first base subassembly, second spring element detachably assembles on the second base subassembly, first base subassembly and second base subassembly are in the same place and assemble with the lock sleeve with removable mode. The MPO optical fiber connector can avoid the optical fiber from being scratched by the spring, is convenient to repair and reduces the scrapped cost of products.

Description

MPO fiber connector

Technical Field

The invention relates to an optical fiber interconnection technology, in particular to an MPO optical fiber connector (Multi Push On) optical fiber connector.

Background

An MPO fiber optic connector is a multi-core fiber connector, and generally 12-core fibers are arranged in a row to support one or more rows of fibers in the same MPO fiber optic connector, and the standard is specified by IEC 61754-7, and the MPO fiber optic connector is divided into one row (12 cores) and multiple rows (24 cores or more) according to the number of cores arranged in the connector. With the rapid development of data centers, applications such as cloud computing and cloud storage gradually permeate various industries, the bandwidth requirement of network communication is rapidly increased, the requirement on connection between optical fibers is higher and higher, and a certain risk of optical fiber damage exists in the manufacturing process of the traditional MPO optical fiber connector.

The structure of a conventional MPO fiber optic connector is shown in fig. 1 to 3. The traditional MPO optical fiber connector adopts a single spring 5, the spring 5 is kept in a connection state by utilizing the elasticity of the spring, and a spring base 6 is of an integrated structure. As shown in fig. 2A and 2B, the spring 5 needs to be threaded on the ribbon fiber 4, the contact gap between the spring 5 and the ribbon fiber 4 is only about 0.15mm (the ribbon fiber has a width of about 3.2mm, and the inside diameter of the oblate spring is about 3.5mm), and during the processing, the spring 5 slides back and forth on the optical fiber, and the notches at the two ends of the spring easily scratch the optical fiber.

Moreover, if the MPO optical fiber connector is finally unqualified in detection or the ferrule 2 is in a scrapped state, the ferrule 2 needs to be added again for repair. As shown in fig. 1A, since the press ring 9 is riveted on the spring seat 6, which is an irreversible process, the whole set of discrete MPO fiber optic connector products will be scrapped.

When traditional MPO fiber connector need reprocess, need to pull down lock sleeve 1, guide pin 3 and guide pin base and just can reprocess. As shown in fig. 3, since the pressing ring 9 is riveted on the spring base 6, the spring base 6 cannot move backward, the spring 5 is compressed, and the risk of fiber breakage is easily caused in the process of detaching the guide pin 3 and the guide pin base.

It is to be noted that the information disclosed in the above background section is only for understanding the background of the present application and thus may include information that does not constitute prior art known to a person of ordinary skill in the art.

Disclosure of Invention

The primary object of the present invention is to overcome the above-mentioned drawbacks of the prior art and to provide an MPO fiber optic connector.

In order to achieve the purpose, the invention adopts the following technical scheme:

an MPO optical fiber connector comprises a locking sleeve, an insert core, a ribbon fiber, an optical cable, a spring base and a sheath, wherein the insert core is installed in the locking sleeve, the insert core is connected with one end of the ribbon fiber, the other end of the ribbon fiber is connected with the optical cable, the optical cable penetrates out of the sheath, the spring is installed on the spring base, the locking sleeve and the spring base are locked and assembled together and tightly press the spring, the spring exerts elastic force on the insert core, the spring base is a spring base with a split structure, the spring base comprises a first base assembly and a second base assembly which can be split, the spring comprises a first spring element and a second spring element, the first spring element is detachably assembled on the first base assembly, and the second spring element is detachably assembled on the second base assembly, the first and second seat assemblies are combined and removably assembled with the locking sleeve.

Further:

the first base component and the second base component are respectively arranged on two sides of the extension direction of the ribbon fiber and the optical cable.

The ends of the first and second mount assemblies are removably mounted to the sheath.

The ends of the first and second base assemblies combine to form a threaded end, the boot is disposed toward the opening of the spring base as a threaded hole, and the threaded end is in threaded engagement with the threaded hole.

The first base component and the second base component are provided with spring installation grooves towards one end of the locking sleeve, and the first spring element and the second spring element are installed in the spring installation grooves of the first base component and the spring installation grooves of the second base component respectively.

The two sides of the band fiber are respectively provided with a guide pin and a guide pin base which are used for being connected and matched with the inserting core, the guide pin is arranged on one side of the guide pin base facing the inserting core, one side of the guide pin base facing the spring base is provided with a spring guide post, and the first spring element and the second spring element are respectively sleeved on the corresponding spring guide post.

The first base assembly and the second base assembly are symmetrically arranged and respectively comprise a cylinder facing one side of the inserting core, an end facing one side of the sheath and a flange part positioned between the cylinder and the end.

The cylinder is cuboid.

The flange portion is tapered so as to decrease in size in the sheath direction.

Compared with the prior art, the invention has the following beneficial effects:

the MPO optical fiber connector is characterized in that the spring base is arranged into a split structure and comprises a first base component and a second base component which can be split, the spring comprises a first spring element and a second spring element, the first spring element and the second spring element are detachably assembled on the first base component and the second base component respectively, and the first base component and the second base component are combined together and are detachably assembled with the locking sleeve.

Drawings

Fig. 1A is an assembly structural view of a conventional MPO optical fiber connector.

Fig. 1B is an exploded structural view of a conventional MPO optical fiber connector.

Fig. 2A is a structural view of a conventional MPO fiber optic connector with a spring threaded through the ribbon.

Fig. 2B is a cross-sectional view a-a of the MPO fiber optic connector shown in fig. 2A.

Fig. 3 is a partial schematic view of a conventional MPO fiber optic connector.

Fig. 4 is an exploded view of an MPO fiber optic connector according to an embodiment of the present invention.

FIG. 5 is a partial schematic view of a spring engaged with a spring guide post and a spring mounting slot according to an embodiment of the present invention.

Fig. 6 is a perspective view of an MPO fiber optic connector according to an embodiment of the present invention.

Fig. 7 is a partial perspective view of an MPO fiber optic connector according to one embodiment of the present invention.

Detailed Description

The embodiments of the present invention will be described in detail below. It should be emphasized that the following description is merely exemplary in nature and is not intended to limit the scope of the invention or its application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element. In addition, the connection may be for either a fixed or coupled or communicating function.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the embodiments of the present invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be in any way limiting of the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1, an embodiment of the present invention provides an MPO optical fiber connector, including a locking sleeve 1, a ferrule 2, a ribbon fiber 4, a spring 5, a spring base 6, a sheath 7, and an optical cable 8, where the ferrule 2 is installed in the locking sleeve 1, the ferrule 2 is connected to one end of the ribbon fiber 4, the other end of the ribbon fiber 4 is connected to the optical cable 8, the optical cable 8 passes through the sheath 7, the spring 5 is installed on the spring base 6, the locking sleeve 1 is locked and assembled with the spring base 6 and compresses the spring 5, the spring 5 applies a compression elastic force to the ferrule 2, the spring base 6 is a split-type spring base 6, the spring base 6 includes a first base assembly and a second base assembly that are separable, the spring includes a first spring element and a second spring element, the first spring element is detachably assembled on the first base assembly, the second spring element is detachably mounted on the second seat assembly, the first seat assembly and the second seat assembly being combined and detachably mounted with the locking sleeve 1.

In a preferred embodiment, the first base member and the second base member are arranged on both sides of the extension direction of the ribbon fiber 4 and the optical cable 8, respectively.

In a preferred embodiment, the ends of the first and second base assemblies are removably mounted to the enclosure 7.

In a preferred embodiment, the ends of the first and second base assemblies are combined to form a threaded end, the sheath 7 being provided as a threaded hole towards the opening of the spring base 6, the threaded end being in threaded engagement with the threaded hole.

In a preferred embodiment, the first and second seat assemblies are provided with spring mounting grooves 11 at an end thereof facing the locking sleeve 1, and the first and second spring members are mounted in the spring mounting grooves 11 of the first and second seat assemblies, respectively.

In a preferred embodiment, a guide pin 3 and a guide pin base for connecting and cooperating with the ferrule 2 are respectively disposed on two sides of the ribbon fiber 4, the guide pin is mounted on a side of the guide pin base facing the ferrule 2, a spring guide post 10 is disposed on a side of the guide pin base facing the spring base 6, and the first spring element and the second spring element are respectively sleeved on the corresponding spring guide posts 10.

In a preferred embodiment, the first and second seat assemblies are symmetrically arranged and respectively comprise a cylinder towards the ferrule 2 side, an end towards the jacket 7 side and a flange portion between the cylinder and the end.

In a preferred embodiment, the cylinder is rectangular parallelepiped shaped.

In a preferred embodiment, the flange portion is tapered with a decreasing dimension in the direction of the jacket 7.

According to some embodiments of the present invention, the spring base 6 is split in a dual spring mode. The sheath 7 and the spring base 6 adopt a thread fit mode and a locking buckle is added at the rear end of the spring base 6. The spring 5 of the MPO optical fiber connector has a limited motion track and can only do axial motion along the central lines of the spring guide post on the guide pin base and the spring groove on the spring base, as shown in figure 5, so that the spring and the optical fiber can not be contacted in the whole product processing process, and the optical fiber can be effectively prevented from being scratched by the spring. The MPO optical fiber connector adopts a detachable structure, and the sheath 7 and the spring base 6 are preferably designed to be fixed in a threaded structure, as shown in fig. 7. The spare parts of the MPO optical fiber connector can be recycled, and the scrapping cost can be reduced. The spring mount 6 and the boot 7 of the MPO fiber optic connector are of a removable threaded engagement, as shown in fig. 4, rather than being irreversibly crimped, thereby facilitating rework.

The background of the present invention may contain background information related to the problem or environment of the present invention and does not necessarily describe the prior art. Accordingly, the inclusion in the background section is not an admission of prior art by the applicant.

The foregoing is a more detailed description of the invention in connection with specific/preferred embodiments and is not intended to limit the practice of the invention to those descriptions. It will be apparent to those skilled in the art that various substitutions and modifications can be made to the described embodiments without departing from the spirit of the invention, and these substitutions and modifications should be considered to fall within the scope of the invention. In the description herein, references to the description of the term "one embodiment," "some embodiments," "preferred embodiments," "an example," "a specific example," or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction. Although embodiments of the present invention and their advantages have been described in detail, it should be understood that various changes, substitutions and alterations can be made herein without departing from the scope of the claims.

Claims

1. An MPO optical fiber connector comprises a locking sleeve, an insert core, a ribbon fiber, an optical cable, a spring base and a sheath, wherein the insert core is arranged in the locking sleeve, the insert core is connected with one end of the ribbon fiber, the other end of the ribbon fiber is connected with the optical cable, the optical cable penetrates out of the sheath, the spring is arranged on the spring base, the locking sleeve and the spring base are locked and assembled together and tightly press the spring, and the spring exerts the elastic force on the insert core, the MPO optical fiber connector is characterized in that the spring base is a split spring base which comprises a first base component and a second base component which can be split, the spring comprises a first spring element and a second spring element, the first spring element is detachably assembled on the first base component, and the second spring element is detachably assembled on the second base component, the first and second seat assemblies are combined and removably assembled with the locking sleeve.

2. The MPO fiber optic connector of claim 1, wherein the first and second base assemblies are disposed on opposite sides of the direction of elongation of the ribbon fibers and the fiber optic cables, respectively.

3. The MPO fiber optic connector of claims 1 or 2, wherein the ends of the first and second base assemblies are removably mounted on the jacket.

4. The MPO fiber optic connector of claim 3, wherein the ends of the first and second base assemblies combine to form a threaded end, the boot being disposed as a threaded hole toward the opening of the spring base, the threaded end being in threaded engagement with the threaded hole.

5. The MPO fiber optic connector of any one of claims 1-4, wherein the first base assembly and the second base assembly are provided with spring mounting slots toward one end of the locking sleeve, the first spring element and the second spring element being mounted within the spring mounting slots of the first base assembly and the second base assembly, respectively.

6. The MPO fiber optic connector of claim 5, wherein a guide pin and a guide pin seat are respectively disposed on two sides of the ribbon fiber for connecting and mating with the ferrule, the guide pin is mounted on a side of the guide pin seat facing the ferrule, a spring guide post is disposed on a side of the guide pin seat facing the spring seat, and the first spring element and the second spring element are respectively sleeved on the corresponding spring guide posts.

7. The MPO fiber optic connector of claim 5, wherein the first and second header assemblies are symmetrically arranged and include a post toward the ferrule side, an end toward the boot side, and a flange portion between the post and the end.

8. The MPO fiber optic connector of claim 7, wherein the posts are cuboid shaped.

9. The MPO fiber optic connector of claim 7, wherein the flange portion is tapered to decrease in size toward the jacket.