CN212160153U

CN212160153U - MPO connector

Info

Publication number: CN212160153U
Application number: CN202020978278.7U
Authority: CN
Inventors: 张业; 韩绍友
Original assignee: Shenzhen Xiayu Precision Parts Co ltd
Current assignee: Shenzhen Xiayu Precision Parts Co ltd
Priority date: 2020-06-01
Filing date: 2020-06-01
Publication date: 2020-12-15
Anticipated expiration: 2030-06-01

Abstract

The embodiment of the utility model provides a MPO connector, including the interior casing of seting up the inner chamber and assemble the lock pin subassembly in the inner chamber of interior casing according to the preface, main spring and stop part, the both ends of main spring are supported respectively and are pushed up lock pin subassembly and stop part, the both sides that the one end of inner chamber was inserted to the stop part all are equipped with the elasticity pothook that turns up, the position that interior casing corresponds the elasticity pothook is equipped with the buckle recess with elasticity pothook block, the outside one end of inner chamber that the stop part exposes is equipped with the block portion of the interior casing terminal surface of block, the relative both sides lateral wall of stop part respectively outwards protruding respectively is equipped with one and is the location lug of cuboid form, each location lug all has one end and links to each other with block portion. The embodiment of the utility model provides an in the casing was inserted to the stop part, elasticity pothook and buckle groove block, each location lug further inject the stop part with the cooperation of location concave part simultaneously, strengthen the anti side pull ability of stop part, be difficult for deviating from.

Description

MPO connector

Technical Field

The embodiment of the utility model provides a relate to fiber connector technical field, especially relate to a MPO connector.

Background

An MPO (Multi Push On, abbreviated as MPO) connector is one type of optical fiber connectors and is often used as a connector type of a high-speed transmission standard, along with the development of 5G communication, cloud computing and big data, the integration degree of a related data center is higher and higher, and infinite data needs to be contained in a limited space.

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to provide an MPO connector having a good lateral pull resistance.

In order to solve the technical problem, the embodiment of the utility model provides an adopt following technical scheme: an MPO connector comprises an inner shell with an inner cavity, and a ferrule assembly, a main spring and a stop part which are sequentially assembled in the inner cavity of the inner shell, wherein two ends of the main spring respectively abut against the ferrule assembly and the stop part, two sides of one end, inserted into the inner cavity, of the stop part are respectively provided with an outward-turned elastic clamping hook, a buckling groove clamped with the elastic clamping hook is arranged at the position, corresponding to the elastic clamping hook, of the inner shell, one end, exposed out of the inner cavity, of the stop part is provided with a blocking part for blocking the end surface of the inner shell, two side walls, opposite to two sides, of the stop part are respectively provided with a cuboid-shaped positioning lug in an outward protruding mode, one end of each positioning lug is connected with the blocking part, and a positioning concave part matched with the positioning lug is arranged at the position.

Furthermore, the elastic hook comprises elastic cantilevers and clamping parts, wherein the elastic cantilevers extend from two sides of one end, inserted into the inner cavity, of the stop part respectively along the axial direction, and the clamping parts are formed by outwards turning the tail ends of the elastic cantilevers.

Furthermore, two one sides that the elasticity cantilever is relative all are equipped with and are used for carrying out spacing arc wall to the main spring.

Further, the clamping part comprises a contact surface used for being in contact with the wall of the inner cavity when the stop part is inserted into or pulled out of the inner cavity and a clamping surface used for being clamped with the clamping groove when the stop part is inserted in place, the contact surface is a convex arc surface, and the clamping surface is perpendicular to the side face of the elastic cantilever, on which the clamping part is formed.

Furthermore, the ferrule assembly comprises a ferrule and a base, the ferrule is inserted into the base, one end of the main spring is abutted against the stop member, the other end of the main spring is abutted against the base, and one end of the ferrule inserted into the base penetrates through the base and is inserted into the main spring.

Furthermore, the MPO connector further comprises an outer shell which is provided with a cavity to be sleeved on the outer side of the inner shell, a convex part for stopping the outer shell is arranged on the side wall of the outer side of the inner shell, and a concave part matched with the convex part is arranged at the position, corresponding to the convex part, of the cavity wall of the cavity.

Furthermore, the lateral wall of the two sides of the outer side of the inner shell is also provided with a mounting groove, a side spring is assembled in the mounting groove, the position of the outer shell cavity corresponding to the mounting groove is provided with a spring groove, one end of the side spring is abutted to the mounting groove, and the other end of the side spring is abutted to the spring groove.

Furthermore, the outer side wall of the inner shell and one surface of the inner shell adjacent to the surface where the buckle groove is located are provided with a polar piece in a protruding mode, and the position of the cavity of the outer shell corresponding to the polar piece is inwards sunken.

Further, the other end of the stop piece is provided with a connecting column, the connecting column is provided with an external thread, the connector is further provided with a protective pipe sleeve, and the protective pipe sleeve is provided with an internal thread matched with the external thread.

Furthermore, the MPO connector also comprises a dustproof shell, wherein one end of the dustproof shell is provided with a cavity for covering the inserting core.

Adopt above-mentioned technical scheme, the embodiment of the utility model provides a following beneficial effect has at least: the embodiment of the utility model provides an interior casing is inserted to the stop part, the elasticity pothook of stop part and the buckle recess block of interior casing, and the stop portion of cooperation stop part other end is fixed in the stop part in the interior casing, and the location lug that the stop part both sides set up cooperatees with the location concave part of interior casing inner chamber, strengthens the anti side-pulling ability of stop part, makes the stop part difficult follow interior casing when receiving great side direction pulling force deviate from.

Drawings

Fig. 1 is a schematic view of an alternative embodiment of the MPO connector of the present invention in an exploded configuration.

Fig. 2 is a schematic perspective view of a stopper of an alternative embodiment of the MPO connector of the present invention.

Fig. 3 is a schematic perspective view of an inner housing of an alternative embodiment of the MPO connector of the present invention.

Fig. 4 is a schematic perspective view of an outer housing of an alternative embodiment of the MPO connector of the present invention.

Fig. 5 is a schematic cross-sectional view of an alternative embodiment of the MPO connector of the present invention.

Fig. 6 is a schematic diagram of a longitudinal cross section of an alternative embodiment of the MPO connector of the present invention.

Fig. 7 is a schematic view of an alternative embodiment of the MPO connector of the present invention with the dust boot removed.

Fig. 8 is a schematic view showing the structure of the MPO connector according to an alternative embodiment of the present invention, with the dust-proof housing and the outer housing removed.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It is to be understood that the following illustrative embodiments and description are only intended to illustrate the present invention, and are not intended as a limitation of the present invention, and that features of the embodiments and examples may be combined with each other without conflict.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

An alternative embodiment of the present invention provides an MPO connector, as shown in fig. 1 and 3, comprising an inner housing 1 having an inner cavity 10, and a ferrule assembly 2 sequentially assembled in the inner cavity 10 of the inner housing 1, the plug core component comprises a main spring 3 and a stop part 4, two ends of the main spring 3 respectively abut against the plug core component 2 and the stop part 4, two sides of one end, inserted into the inner cavity 10, of the stop part 4 are respectively provided with an outward-turned elastic clamping hook 41, a clamping groove 11 clamped with the elastic clamping hook 41 is arranged at the position, corresponding to the elastic clamping hook 41, of the inner shell 1, one end, exposed out of the inner cavity 10, of the stop part 4 is provided with a stopping part 42 used for stopping the end face of the inner shell 1, two opposite side walls of the stop part 4 are respectively provided with a rectangular positioning lug 43 in an outward protruding mode, one end of each positioning lug 43 is connected with the stopping part 42, and a positioning concave part 12 matched with the positioning lug 43.

The corners of the positioning bumps 43 are rounded, so that stress on the corners is reduced, and the service life is prolonged.

The embodiment of the utility model provides an inner casing 1 is inserted to stop part 4, the elasticity pothook 41 of stop part 4 and the buckle recess 11 block of interior casing 1, the stop part 42 of the cooperation stop part 4 other end is fixed in stop part 4 in interior casing 1, the location lug 43 that the setting of stop part 4 both sides cooperatees with the location concave part 12 of interior casing 1 inner chamber 10, strengthen the anti side-pulling ability of stop part 4, make stop part 4 elasticity pothook 41 non-deformable when receiving great side direction pulling force, prevent that elasticity pothook 41 from deviating from in buckle recess 11, thereby lead to stop part 4 to deviate from interior casing 1.

In another optional embodiment of the present invention, as shown in fig. 1 and 2, the elastic hook 41 includes an elastic cantilever 411 formed by inserting the stopper 4 into both sides of one end of the inner cavity 10 along the axial direction respectively and a buckling part 412 formed by turning over the end of the elastic cantilever 411, the free ends of the elastic cantilevers 411 can be close to each other after being stressed, the installation of the stopper 4 into the inner shell 1 is more labor-saving, and the fitting between the stopper 4 and the inner shell 1 is more flexible.

In another alternative embodiment of the present invention, as shown in fig. 1 and fig. 2, the opposite sides of the two elastic cantilevers 411 are respectively provided with an arc-shaped groove 413 for limiting the main spring 3, so as to limit the overall position of the main spring 3 in the inner housing 1, and avoid the eccentric wear between the main spring 3 and the optical fiber.

In another optional embodiment of the present invention, as shown in fig. 1 and fig. 2, the fastening portion 412 includes a contact surface 4122 for contacting with the inner cavity 10 cavity wall when the stop member 4 is inserted into or extracted from the inner cavity 10 and a fastening surface 4121 for fastening with the fastening groove 11 when the stop member 4 is inserted in place, the contact surface 4122 is a convex arc surface, which can effectively guide the free end of the elastic cantilever 411 to bend inward, so that the stop member 4 is smoother when being inserted into the inner shell 1, the fastening surface 4121 is perpendicular to the side of the elastic cantilever 411 where the fastening portion 412 is formed, so that the fastening between the elastic hook 41 and the fastening groove 11 is more stable.

In another optional embodiment of the present invention, as shown in fig. 1 and fig. 5 to fig. 6, the ferrule assembly 2 includes a ferrule 21 and a base 22, the ferrule 21 is inserted into the base 22, one end of the main spring 3 abuts against the stop member 4, the other end abuts against the base 22, the ferrule 21 is inserted into one end of the base 22 through the base 22 and the main spring 3 is inserted, the optical fiber is inserted into the ferrule 21 from the inside of the main spring 3, the main spring 3 pushes the ferrule 21 through the abutting base 22, so that the ferrule 21 is more stable when being connected.

In another optional embodiment of the present invention, as shown in fig. 1 and 4, the MPO connector further includes an outer shell 5 having a cavity 50 to be sleeved outside the inner shell 1, the outer side wall of the inner shell 1 is provided with a protrusion 13 for stopping the outer shell 5, a position of the cavity 50 corresponding to the protrusion 13 is provided with a recess 51 matched with the protrusion 13, the protrusion 13 is matched with the recess 51 to stop the outer shell 5, so as to control the maximum insertion depth of the MPO connector when being plugged with other parts.

In another optional embodiment of the present invention, as shown in fig. 3, 4 and 8, the mounting groove 14 has been further opened on the side wall of the two sides outside the inner casing 1, the side spring 8 is assembled in the mounting groove 14, the spring groove 52 has been opened on the position of the cavity of the outer casing 5 corresponding to the mounting groove 14, one end of the side spring 8 abuts against the mounting groove 14, the other end abuts against the spring groove 52, the side spring 8 is disposed to prevent the outer casing 5 from directly abutting against the convex portion 13, so as to reduce the rigid collision between the concave portion 51 and the convex portion 13 when the MPO connector is inserted, and prolong the service.

In another optional embodiment of the present invention, as shown in fig. 1, 4 and 7, a surface of the outer side wall of the inner casing 1 adjacent to the surface of the buckle groove 11 is provided with a protruding polar piece 15 having a certain length, one end of the polar piece 15 far away from the insertion end is not connected to the convex portion 13, the position of the cavity 50 of the outer casing 5 corresponding to the polar piece 15 is recessed inwards, one end of the polar piece 15 far away from the insertion end is matched with the concave portion to position the outer casing 5, so that the outer casing 5 cannot fall off from the end of the polar piece 15, and the polar piece 15 is set to mark the insertion direction of the MPO connector when in connection use.

In another optional embodiment of the present invention, as shown in fig. 1 and 5 and 6, the other end of the stop member 4 is provided with a connecting column 44, the connecting column 44 is provided with an external thread, the connector is further provided with a protective sleeve 6, the protective sleeve 6 is provided with an internal thread matching with the external thread, the stop member 4, the connecting column 44 and the protective sleeve 6 are all provided with a channel for installing an optical fiber, and the protective sleeve 6 protects the internal optical fiber from being damaged.

In another optional embodiment of the present invention, as shown in fig. 1, the MPO connector further includes a dust-proof housing 7, one end of the dust-proof housing 7 is provided with a cavity for covering the ferrule 21, when the connector is not used, the dust-proof housing 7 is sleeved to protect the ferrule 21, so as to prevent the ferrule 21 from contacting badly due to ash falling.

The embodiments of the present invention have been described with reference to the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and scope of the present invention, and these forms are within the scope of the present invention.

Claims

1. An MPO connector comprises an inner shell provided with an inner cavity, and a ferrule assembly, a main spring and a stop piece which are sequentially assembled in the inner cavity of the inner shell, two ends of the main spring respectively support against the ferrule assembly and the stop piece, two sides of one end of the stop piece inserted into the inner cavity are respectively provided with an outward-turned elastic clamping hook, the inner shell is provided with a buckle groove which is clamped with the elastic hook at the position corresponding to the elastic hook, one end of the stop piece exposed out of the inner cavity is provided with a stop part for stopping the end surface of the inner shell, it is characterized in that the side walls of the two opposite sides of the stop piece are respectively provided with a rectangular positioning lug in an outward protruding way, one end of each positioning lug is connected with the stop part, and a positioning concave part matched with the positioning lug is arranged at the position of the inner cavity corresponding to the positioning lug.

2. The MPO connector of claim 1, wherein the resilient hook comprises resilient cantilever arms formed to extend axially from both sides of an end of the stopper inserted into the cavity, respectively, and a catching portion formed to be turned outward from ends of the resilient cantilever arms.

3. The MPO connector of claim 2, wherein each of the opposing sides of the two resilient arms is provided with an arcuate slot for retaining the main spring.

4. The MPO connector of claim 2, wherein the latch portion comprises a contact surface for contacting the inner cavity wall when the stopper is inserted into and removed from the inner cavity, and a latch surface for latching with the latch groove when the stopper is inserted into position, the contact surface being a convex arc surface, the latch surface being perpendicular to the side of the elastic cantilever on which the latch portion is formed.

5. The MPO connector of claim 1, wherein the ferrule assembly includes a ferrule and a base, the ferrule being inserted into the base, the main spring abutting the stop at one end and the base at the other end, the ferrule being inserted into the base at one end through the base and into the main spring.

6. The MPO connector of claim 1, further comprising an outer housing defining a cavity for fitting over the outer side of the inner housing, wherein the outer side wall of the inner housing defines a protrusion for stopping the outer housing, and a recess for engaging with the protrusion is defined in a cavity wall of the cavity at a position corresponding to the protrusion.

7. The MPO connector of claim 6, wherein the side walls on both sides of the outer side of the inner housing are further provided with mounting grooves, side springs are assembled in the mounting grooves, the outer housing cavity is provided with spring grooves corresponding to the mounting grooves, one end of each side spring abuts against the mounting groove, and the other end of each side spring abuts against the spring groove.

8. The MPO connector of claim 6, wherein a surface of the outer side wall of the inner housing adjacent to the surface of the snap groove is provided with a polar piece in a protruding manner, and the outer housing cavity is recessed inwardly at a position corresponding to the polar piece.

9. The MPO connector of claim 1, wherein the stop member is provided at the other end with a connecting post provided with an external thread, and with a protective sleeve provided with an internal thread that mates with the external thread.

10. The MPO connector of claim 5, further comprising a dust housing, wherein a cavity is formed at one end of the dust housing for housing the ferrule.