CN-116224500-B - Connector

CN116224500BCN 116224500 BCN116224500 BCN 116224500BCN-116224500-B

Abstract

The invention relates to a connector, which comprises an inner shell and an outer shell, wherein an inserting core is arranged in the inner cavity of the inner shell, an optical fiber is arranged in the inserting core, a positioning seat is arranged at the rear end of the inserting core, a pushing spring for providing pushing force for the inserting core is arranged at the rear end of the positioning seat, a limiting seat for limiting the pushing spring in the inner shell is inserted at the rear end of the inner shell, at least two pushing springs are arranged in the inner cavity of the inner shell, a shaft extending in the front-back direction is arranged between the positioning seat and the limiting seat, relative front-back movement is realized between the positioning seat and the limiting seat through the shaft, clamping characteristics for installing the shaft are arranged on two sides of the positioning seat and the limiting seat, the pushing springs are sleeved on the corresponding shafts, and the pushing springs are arranged on two sides of the positioning seat and the limiting seat. The pushing springs are arranged on two sides of the positioning seat and the limiting seat through the shafts and are not sleeved on the optical fibers, so that the connector is convenient to assemble and disassemble, and the technical problems that the pushing springs occupy the installation space and cannot be assembled and disassembled later are solved.

Inventors

ZHANG LAIFENG
XIE QINGLU
WU PAILEI
SUN YALEI

Assignees

中航光电(广东)有限公司

Dates

Publication Date: 20260512
Application Date: 20221230

Claims (10)

1. The utility model provides a connector, includes the inner housing and along the shell body of fore-and-aft direction movable sleeve on the inner housing, is equipped with the lock pin in the inner chamber of inner housing, installs optic fibre along fore-and-aft direction in the lock pin, and the lock pin rear end is equipped with the positioning seat, and the positioning seat rear end is equipped with the pushing spring that is used for providing forward thrust for the lock pin, and inner housing rear end cartridge has and is used for spacing seat in the inner housing with the pushing spring, its characterized in that: the inner cavity of the inner shell is internally provided with at least two pushing springs, a shaft extending in the front-rear direction is arranged between the positioning seat and the limiting seat, relative front-rear movement is realized between the positioning seat and the limiting seat through the shaft, clamping characteristics for mounting the shaft are arranged on two sides of the positioning seat and the limiting seat, the clamping characteristics are clamping grooves matched with the shaft in a radial clamping manner, the shaft is arranged in the clamping grooves along the direction perpendicular to the front-rear direction, two ends of the shaft are respectively provided with a head, the outer diameter of the head is larger than that of the shaft, so that the relative position relationship between the positioning seat and the limiting seat in the front-rear direction is conveniently limited, the pushing springs are sleeved on the corresponding shaft, and the shaft is clamped into the clamping grooves to enable the pushing springs to be mounted on two sides of the positioning seat and the limiting seat, so that the pushing springs can be dismounted and mounted at any time.
2. A connector as set forth in claim 1, wherein movable spaces extending in the front-rear direction are provided on both sides of the limit seat, the movable spaces are located at rear ends of the corresponding side engaging grooves on the limit seat, and the movable spaces are communicated with the corresponding side engaging grooves on the limit seat so that the shaft can move back and forth in the movable spaces under the guidance of the engaging grooves.
3. A connector as in claim 1 further comprising a rear housing having a connection feature thereon and an inner housing having an adapter connection feature thereon, the connection feature cooperating with the adapter connection feature to enable the inner housing to be loaded into the rear housing in a direction perpendicular to the front-to-rear direction, and the rear housing abutting the retainer to secure the retainer in the cavity.
4. A connector as set forth in claim 3, wherein the connection feature is a groove provided on the rear housing, the mating connection feature is a protrusion provided on both sides of the rear end of the inner housing, the protrusion is engaged in the groove along a direction perpendicular to the front-rear direction to achieve connection of the inner housing and the rear housing, and a groove surface of the groove abuts against the rear end of the limit seat to achieve axial limit of the limit seat.
5. A connector as set forth in claim 3, wherein the retainer has an inner hole penetrating in a front-rear direction for the optical fiber to pass through, and wherein the rear end of the retainer has an inclined surface for guiding the optical fiber during loading of the inner housing and the retainer into the rear housing.
6. A connector according to claim 3, wherein the rear end of the rear housing is provided with a support for the optical fiber.
7. A connector as set forth in claim 6, wherein the rear housing is provided with a support mounting groove, and the front end of the support is provided with a mounting projection by which the support is fitted into the support mounting groove in the radial direction.
8. A connector as set forth in claim 6, wherein the rear housing is integrally formed with the support member to form an integral part, and wherein the integral part is provided with an opening provided on an upper side thereof, the opening being provided through in a front-rear direction, the opening being for accommodating the optical fiber in the integral part in a direction perpendicular to the front-rear direction.
9. A connector as set forth in claim 1, wherein the rear housing upper cover is provided with a cover plate for restricting movement of the inner housing in a direction perpendicular to the front-rear direction.
10. A connector as set forth in claim 9, wherein the rear housing has a recess feature on an upper side of a front end thereof, the cover plate has a male key feature on a front end thereof, the male key feature is engaged into the recess feature to achieve a limit fit of the cover plate with the rear housing in a front-rear direction and a direction perpendicular to the front-rear direction, and the rear housing is fastened with the cover plate by screws.

Description

Connector Technical Field The invention belongs to the technical field of connectors, and particularly relates to an MPO optical fiber connector. Background With the unprecedented increase of the data demand of communication networks such as 5G, data centers and the like, the data volume of equipment operation cabinets which need to transmit communication simultaneously is larger and larger, so that higher requirements are put forward on the density of an optical fiber network, the traditional wiring and wiring cannot meet the development requirements, and the high-density multi-core MPO connector plays a key role in equipment interconnection, so that the high reliability requirement of the MPO connector is very important. In the prior art, the Chinese patent publication No. CN202453542U discloses an optical fiber connector, which comprises a shell component, a core inserting component inserted in the shell component and a holding seat for holding the core inserting component in the shell component, wherein cantilever arms are arranged on the holding seat in pairs, raised barbs are arranged on the cantilever arms for locking parts in the shell component, elastic deformation is needed when the cantilever arms are installed, but the deformation of the elastic arms can lead to the problem of buckle failure and the problem of cantilever arms fracture. Disclosure of Invention The invention aims to provide a connector which solves the technical problems that a pushing spring occupies an installation space and cannot be assembled and disassembled later in the prior art. The invention aims at solving the technical problems by adopting the following technical scheme. The connector comprises an inner shell and an outer shell movably sleeved on the inner shell along the front-back direction, wherein an inserting core is arranged in an inner cavity of the inner shell, an optical fiber is arranged in the inserting core along the front-back direction, a positioning seat is arranged at the rear end of the inserting core, a pushing spring for providing forward pushing force for the inserting core is arranged at the rear end of the positioning seat, a limiting seat for limiting the pushing spring in the inner shell is inserted at the rear end of the inner shell, at least two pushing springs are arranged in the inner cavity of the inner shell, a shaft extending in the front-back direction is arranged between the positioning seat and the limiting seat, relative front-back movement is realized between the positioning seat and the limiting seat through the shaft, clamping features for installing the shaft are arranged on two sides of the positioning seat and the limiting seat, and the pushing springs are sleeved on the corresponding shafts so that the pushing springs are arranged on two sides of the positioning seat and the limiting seat. Further, the clamping characteristics are clamping grooves matched with the radial clamping of the shaft, movable spaces extending in the front-rear direction are formed in two sides of the limiting seat, the movable spaces are located at the rear ends of the corresponding side clamping grooves on the limiting seat, and the movable spaces are mutually communicated with the corresponding side clamping grooves on the limiting seat, so that the shaft can move back and forth in the movable spaces under the guidance of the clamping grooves. Further, the inner shell is arranged in the rear shell along the direction perpendicular to the front-back direction, the rear shell abuts against the limiting seat, and the limiting seat is fixed in the inner cavity. Further, the connecting feature is a groove formed in the rear shell, the adapting connecting feature is matched with protrusions on two sides of the rear end of the inner shell, the protrusions are clamped into the grooves along the direction perpendicular to the front-rear direction to achieve connection between the inner shell and the rear shell, and the groove surface of the groove abuts against the rear end of the limiting seat to achieve axial limiting of the limiting seat. Furthermore, the limiting seat is provided with an inner hole which is communicated in the front-back direction and is used for the optical fiber to pass through, and the rear end of the limiting seat is provided with an inclined surface which plays a role in guiding in the process that the inner shell and the limiting seat are assembled into the rear shell together. Further, a support member for threading the optical fiber is provided at the rear end of the rear housing. Further, a support piece mounting groove is formed in the rear shell, a mounting convex portion is arranged at the front end of the support piece, and the support piece is radially arranged in the support piece mounting groove through the mounting convex portion. The rear shell and the supporting piece are integrally formed to form an integrally formed piece, an opening is formed in the upper side of the