CN219016657U

CN219016657U - Photoelectric interconnection system

Info

Publication number: CN219016657U
Application number: CN202320084639.7U
Authority: CN
Inventors: 罗昊; 姚腾飞; 梁海斌; 王国栋; 李子路
Original assignee: Shennan Circuit Co Ltd
Current assignee: Shennan Circuit Co Ltd
Priority date: 2023-01-29
Filing date: 2023-01-29
Publication date: 2023-05-12
Anticipated expiration: 2033-01-29

Abstract

The utility model provides a photoelectric interconnection system, which comprises a motherboard assembly, a machine box frame and a plurality of daughter board assemblies, wherein the motherboard assembly comprises a motherboard, a guide pin, a connector socket module and an optical fiber, the motherboard is arranged at one end of the machine box frame, and the guide pin and the connector socket module are arranged on the motherboard; the optical fiber is buried in the motherboard, and the end part of the optical fiber extends to the connector socket module; the sub-board assembly comprises sub-boards, guide seats and connector plug modules, wherein the sub-boards penetrate through one end of the machine box frame far away from the mother board and are arranged in the machine box frame at intervals, the guide seats and the connector plug modules are arranged on the sub-boards, and limiting holes for inserting guide pins are formed in the guide seats; the connector plug module is connected with the connector socket module. The photoelectric interconnection system of the utility model improves the integration level and simplifies the optical cable structure by integrating the optical fibers in the motherboard.

Description

Photoelectric interconnection system

Technical Field

The utility model relates to the technical field of communication electronics, in particular to a photoelectric interconnection system.

Background

The existing communication cabinets and cabinets are used for transmitting data and signals on the basis of electricity, but with the increase of baseband frequency, even if expensive circuit board materials are used, the huge attenuation of electric signals still becomes unacceptable. The use of high-speed cables alleviates the above problems but brings new problems of large volume and heavy weight, and the unavoidable problems of electromagnetic interference and long-distance attenuation of electric transmission. The existing high-speed cable or optical cable is designed based on single operation, and the defects of complexity and difficulty are exposed in the use of a system-level cabinet and a machine box.

Disclosure of Invention

The utility model aims to provide an optical-electrical interconnection system aiming at the problem of complex optical cable structure in the existing optical-electrical interconnection system.

The utility model provides an optoelectronic interconnection system, which comprises a motherboard assembly, a chassis frame and a plurality of daughter board assemblies, wherein the motherboard assembly comprises a motherboard, a guide pin, a connector socket module and an optical fiber, the motherboard is arranged at one end of the chassis frame, and the guide pin and the connector socket module are arranged on the motherboard; the optical fiber is buried in the motherboard, and the end part of the optical fiber extends to the connector socket module;

the daughter board assembly comprises a daughter board, a guide seat and a connector plug module, wherein a plurality of daughter boards penetrate through one end of the chassis frame far away from the motherboard and are arranged in the chassis frame at intervals, the guide seat and the connector plug module are arranged on the daughter boards, and a limiting hole for inserting the guide pin is formed in the guide seat; the connector plug module is connected with the connector socket module.

Optionally, the connector socket module includes a plurality of connector sockets, a plurality of connector sockets are arranged on the motherboard at intervals, at least one connector socket includes a storage cavity, two first side plates, two second side plates and two first dust-proof doors, the two first side plates are oppositely arranged in the storage cavity, and a gap is arranged between the first side plates and the inner wall of the storage cavity; the two second side plates are arranged between the two first side plates; the two first dustproof doors are respectively arranged on the two first side plates, the two first dustproof doors are respectively connected with the two second side plates in a rotating way, and when the two first dustproof doors seal the containing cavity, one end of each first dustproof door extends to a position between the side plate and the inner wall of the containing cavity; when the two first dustproof doors open the accommodating cavity, the first dustproof doors and the first side plate are positioned in the same plane;

the connector plug module comprises a plurality of connector plugs, the connector plugs are arranged on the daughter board at intervals, the connector plugs are respectively connected with the connector sockets, at least one connector plug comprises a core insert, a shell, two third side plates and two second dustproof doors, and the shell is arranged on the periphery of the core insert; the two third side plates are oppositely arranged at two sides of the insert core and are positioned between the insert core and the shell; the two second dustproof doors are respectively connected with the two third side plates in a rotating mode and used for sealing the lock pin, and a turnover space for the second dustproof doors to turn over is formed in the end portion of the shell.

Optionally, the first dust-proof door is rotatably connected with the second side plate by arranging a first door shaft, and the first door shaft is provided with a first torsion spring;

the second dustproof door is rotationally connected with the third side plate through a second door shaft, and a second torsion spring is arranged on the second door shaft.

Optionally, each connector socket is provided with a guide post and a ferrule, each connector plug is provided with a guide hole and a jack, the guide holes are used for being inserted into the guide posts, and the jacks are used for being inserted into the pins.

Optionally, a first sealing ring is arranged on the periphery of the first dustproof door, and a second sealing ring is arranged on the periphery of the second dustproof door; and a third sealing ring is arranged on the periphery of the shell.

Optionally, the plurality of connector sockets are MT-type connector sockets, jumper-type connector sockets and optoelectronic integrated connector sockets, respectively; the connector plugs are respectively an MPO type connector plug, a jumper type connector plug and an optoelectronic integrated connector plug, the MT type connector socket is connected with the MPO type connector plug, the jumper type connector socket is connected with the jumper type connector plug, and the optoelectronic integrated connector socket is connected with the optoelectronic integrated connector plug.

Optionally, an opening is disposed on the motherboard, the opening faces the daughter board, the connector jack module is disposed at the opening, and one end of the optical fiber extends to the opening.

Optionally, a plug-in component is disposed on the daughter board, the plug-in component includes a panel and a pull-out aid, the panel is disposed at one end of the daughter board far away from the connector plug module, and the panel is abutted with the chassis frame; the pull-out aid is arranged on one side of the panel, which is away from the machine box frame.

Optionally, a lock catch is disposed at one end of the chassis frame away from the motherboard, and the lock catch is in clamping connection with the pull-out aid.

Optionally, a plurality of guide grooves are arranged in the chassis frame, the mother board is arranged at one end of the guide grooves, and the plurality of daughter boards are respectively connected with the plurality of guide grooves in a sliding manner.

In the utility model, through arranging the motherboard assembly and the daughter board assemblies, the corresponding number of the daughter board assemblies can be inserted into the chassis frame according to the requirements, and the daughter board assemblies are connected with the motherboard assembly for communication and cooperative work. By embedding the optical fibers in the motherboard, optical transmission is used to replace part of the electrical transmission, so that the optical-electrical interconnection system has high-speed optical transmission capability. The light path is integrated into the motherboard, so that the integration level is improved, and the space occupation of the motherboard is reduced. Through setting up guide pin and guide holder, the accurate butt joint of daughter board and mother board of being convenient for, easy operation is convenient for the installation and the dismantlement of daughter board.

Drawings

Fig. 1 is a schematic structural diagram of an optical-electrical interconnection system according to an embodiment of the present utility model;

fig. 2 is a schematic structural diagram of a daughter board assembly and a mother board assembly of an optical-electrical interconnection system according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of a connector receptacle and a connector plug of an optoelectronic interconnect system according to an embodiment of the present utility model;

FIG. 4 is a schematic view illustrating an opening structure of a first dust door of an optoelectronic interconnect system according to an embodiment of the present utility model;

FIG. 5 is a schematic view illustrating an opening structure of a second dust door of an optoelectronic interconnect system according to an embodiment of the present utility model;

FIG. 6 is a schematic structural diagram of an MPO type connector plug of an optoelectronic interconnect system according to an embodiment of the present utility model;

fig. 7 is a schematic structural diagram of an MT-type connector socket of an optical interconnection system according to an embodiment of the present utility model;

fig. 8 is a schematic structural diagram of an optoelectronic integrated connector plug of an optoelectronic interconnection system according to an embodiment of the present utility model;

fig. 9 is a schematic structural diagram of an optoelectronic integrated connector socket of an optoelectronic interconnection system according to an embodiment of the present utility model;

fig. 10 is a schematic structural diagram of a plug of a jumper connector of an optical-electrical interconnection system according to an embodiment of the present utility model;

fig. 11 is a schematic structural diagram of a jumper connector socket of an optical-electrical interconnection system according to an embodiment of the present utility model.

Reference numerals in the drawings of the specification are as follows:

10. a motherboard assembly; 11. a motherboard; 12. a guide pin; 13. an optical fiber; 14. a connector socket; 141. a first side plate; 142. a first dust door; 143. a guide post; 144. a jack; 145. a second side plate; 15. MT-type connector sockets; 16. jumper connector jack; 17. an optoelectronic integrated connector receptacle; 18. an opening;

2. a machine box frame;

30. a sub-board assembly; 31. a sub-board; 32. a guide seat; 33. a connector plug; 331. a core insert; 332. a housing; 333. a second dust door; 334. a guide hole; 335. a contact pin; 336. a third side plate; 34. MPO type connector plug; 35. a jumper connector plug; 36. a photoelectric integrated connector plug; 37. a panel; 38. a pulling aid.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

In order to illustrate the technical scheme of the utility model, the following description is made by specific examples.

As shown in fig. 1 to 9, an optical-electrical interconnection system according to an embodiment of the present utility model includes a motherboard assembly 10, a chassis frame 2, and a plurality of daughter board assemblies 30, where the motherboard assembly 10 includes a motherboard 11, guide pins 12, a connector receptacle module, and optical fibers 13, the motherboard 11 is disposed at one end of the chassis frame 2, and the guide pins 12 and the connector receptacle module are disposed on the motherboard 11. The optical fibers 13 are buried in the motherboard 11, and the ends of the optical fibers 13 extend to the connector jack module.

The daughter board assembly 30 includes a daughter board 31, a guide holder 32 and a connector plug module, where a plurality of daughter boards 31 pass through one end of the chassis frame 2 far away from the motherboard 11 and are arranged in the chassis frame 2 at intervals, the guide holder 32 and the connector plug module are arranged on the daughter board 31, and a limiting hole (not shown in the figure) for inserting the guide pin 12 is arranged on the guide holder 32. The connector plug module is connected with the connector socket module.

Specifically, the daughter board 31 and the mother board 11 belong to optoelectronic PCBs, i.e., optoelectronic integrated PCBs integrated with optical paths on the basis of conventional PCBs. It should be noted that the connector jack module may be disposed on the daughter board 31, and the connector plug module may be disposed on the motherboard 11.

In this embodiment, by providing the motherboard assembly 10 and the daughter board assemblies 30, a corresponding number of daughter board assemblies 30 can be inserted into the chassis frame 2 according to the requirements, and the daughter board assemblies 30 are connected to the motherboard assembly 10 for communication and cooperative work. By embedding the optical fiber 13 in the motherboard 11, the optical interconnect system is provided with high-speed optical transmission capability using optical transmission instead of partial electrical transmission. The light path is integrated into the motherboard 11, so that the integration level is improved, and the space occupation of the motherboard 11 is reduced. By arranging the guide pins 12 and the guide seats 32, the daughter board 31 and the mother board 11 can be accurately abutted, the operation is simple, and the mounting and the dismounting of the daughter board 31 are convenient.

As shown in fig. 2-5, 10 and 11, in some embodiments of the present utility model, the connector socket module includes a plurality of connector sockets 14, a plurality of connector sockets 14 are disposed on the motherboard 11 at intervals, at least one connector socket 14 includes a receiving cavity, two first side plates 141, two second side plates 145 and two first dust doors 142, the two first side plates 141 are disposed in the receiving cavity in opposition, and a gap is disposed between the first side plates 141 and an inner wall of the receiving cavity. The two second side plates 145 are disposed between the two first side plates 141. The two first dust-proof doors 142 are respectively disposed on the two first side plates 141, the two first dust-proof doors 142 are respectively connected with the two second side plates 145 in a rotating manner, and when the two first dust-proof doors 142 close the accommodating cavity, one end of each first dust-proof door 142 extends between the first side plate 141 and the inner wall of the accommodating cavity. When the two first dust-proof doors 142 open the accommodating cavity, the first dust-proof doors 142 and the first side plate 141 are in the same plane.

The connector plug module includes a plurality of connector plugs 33, a plurality of connector plugs 33 are disposed on the daughter board 31 at intervals, a plurality of connector plugs 33 are respectively connected with a plurality of connector sockets 14, at least one connector plug 33 includes a ferrule 331, a housing 332, two third side plates 336 and two second dust doors 333, and the housing 332 is disposed on the periphery of the ferrule 331. The two third side plates 336 are disposed opposite to each other on two sides of the ferrule 331 and between the ferrule 331 and the housing 332. The two second dust-proof doors 333 are respectively connected with the two third side plates 336 in a rotating manner, and are used for sealing the ferrule 331, and a turnover space for the second dust-proof doors 333 to turn over is provided at the end of the housing 332. By providing the turnover space, the first dust-proof door 142 and the second dust-proof door 333 are turned over toward the turnover space, and dust on the first dust-proof door 142 and the second dust-proof door 333 is prevented from falling into the inside of the connector plug 33 and the connector receptacle 14. By providing a plurality of connector plugs 33 and connector receptacles 14, different connection requirements are fulfilled.

The process of inserting and mating the connector plug 33 with the connector receptacle 14 is as follows: the first dust door 142 and the second dust door 333 remain closed when the connector plug 33 is not yet mated with the connector receptacle 14. After the end portions of the housing 332 are abutted against the two first dust-proof doors 142, the housing 332 applies thrust to the first dust-proof doors 142, so that the two first dust-proof doors 142 rotate toward the overturning space, the first dust-proof doors 142 are opened, and the accommodating cavity is kept relatively isolated from the outside. When the housing 332 is inserted between the first side plate 141 and the storage chamber, the two first dust-proof doors 142 are respectively abutted against the two second dust-proof doors 333, and the first dust-proof doors 142 apply thrust to the second dust-proof doors 333, so that the two second dust-proof doors 333 are rotated toward the turning space, and the second dust-proof doors 333 are opened. When the housing 332 is continuously inserted into the receiving cavity, the first dust door 142 is continuously pushed by the housing 332, the second dust door 333 is continuously pushed by the first dust door 142 and the first side plate 141, and the open state is maintained until the ferrule 331 and the connector socket 14 are in optical end-face abutment.

In some embodiments of the present utility model, the first dust door 142 is rotatably connected to the second side plate 145 by providing a first door shaft (not shown) on which a first torsion spring (not shown) is provided.

The second dust door 333 is rotatably connected to the third side plate 336 by a second door shaft (not shown), and a second torsion spring (not shown) is provided on the second door shaft. By providing the first torsion spring and the second torsion spring, when the connector plug 33 is pulled out of the connector receptacle 14, the first dust-proof door 142 and the second dust-proof door 333 are automatically closed.

As shown in fig. 6-9, in some embodiments of the present utility model, a guide post 143 and a jack 144 are provided on each of the connector sockets 14, a guide hole 334 and a pin 335 are provided on each of the connector plugs 33, the guide hole 334 is used for plugging in the guide post 143, and the jack 144 is used for plugging in the pin 335. The mating of the receptacle 144 with the pin 335 facilitates the mating of the connector receptacle 14 and the connector insert 33 by the mating connection of the guide posts 143 with the guide holes 334.

The guide posts 143 and the insertion holes 144 may be provided in the connector plug 33, and the guide holes 334 and the pins 335 may be provided in the connector receptacle 14.

In some embodiments of the present utility model, a first sealing ring (not shown) is disposed on the outer periphery of the first dust door 142, and a second sealing ring (not shown) is disposed on the outer periphery of the second dust door 333. The outer periphery of the housing 332 is provided with a third sealing ring (not shown in the figure).

In order to effectively reduce the entry of external air into the connector, a sealing material may be provided around the edges of the mating portions of the connector plug 33 and the connector receptacle 14 and the first dust door 142 and the second dust door 333, and the sealing material may be silica gel or rubber. When the connector is not docked, the first dust-proof door 142 and the second dust-proof door 333 are closed, gaps between the first dust-proof door 142 and the connector socket 14 and gaps between the second dust-proof door 333 and the connector plug 33 are filled with sealing materials, and when the docking is completed, the sealing positions of the connector plug 33 and the connector socket 14 are contacted with each other, so that external air and dust are effectively reduced from entering the connector

As shown in fig. 3, 6-9, in some embodiments of the utility model, the plurality of connector receptacles 14 are MT-type connector receptacles 15, jumper-type connector receptacles 16, and optoelectronic-integral connector receptacles 17, respectively. The plurality of connector plugs 33 are respectively an MPO type connector plug 34, a jumper type connector plug 35 and a photoelectric integral connector plug 36, the MT type connector jack 15 is connected to the MPO type connector plug 34, the jumper type connector jack 16 is connected to the jumper type connector plug 35, and the photoelectric integral connector jack 17 is connected to the photoelectric integral connector plug 36.

By providing different connector plugs 33 and connector receptacles 14, both modes of bending the optical fiber 13 and reflective coupling of light extraction are achieved. The MT type connector jack 15 and the MPO type connector plug 34 are conventional optical structures, and have wide universal adaptability and good compatibility, so that conventional processing and testing are facilitated. The jumper type connector plug 35 and the jumper type connector receptacle 16 are small in size and have optical lenses, which can enhance optical coupling capability, are insensitive to deviation, and are small in coupling loss. The optoelectronic integrated connector plug 36 and the optoelectronic integrated connector socket 17 integrate a plurality of optical interfaces and electrical interfaces, and can complete the docking of a plurality of optoelectronic interfaces at one time.

As shown in fig. 3, in some embodiments of the present utility model, an opening 18 is provided on the motherboard 11, the opening 18 faces the daughter board 31, the connector jack module is disposed at the opening 18, and one end of the optical fiber 13 extends to the opening 18.

Specifically, in the opening 18 at the MT-type connector receptacle 15, the end of the optical fiber 13 is bent and fitted into the MT-type connector receptacle 15, forming an optical port perpendicular to the motherboard 11. In an opening 18 at the jumper type connector receptacle 16, the end of the optical fiber 13 is connected to a right angle coupling of the jumper type connector receptacle 16, forming an optical port perpendicular to the motherboard 11.

As shown in fig. 1 and 2, in some embodiments of the present utility model, the daughter board 31 is provided with a plug member, where the plug member includes a panel 37 and a pull aid 38, the panel 37 is disposed at an end of the daughter board 31 away from the connector plug module, and the panel 37 abuts against the chassis frame 2. The pull-out aid 38 is arranged on the side of the panel 37 facing away from the chassis frame 2.

In some embodiments of the present utility model, a latch (not shown in the figure) is disposed at an end of the chassis frame 2 away from the motherboard 11, and the latch is engaged with the pull-up aid 38 to lock the daughter board 31.

In some embodiments of the present utility model, a plurality of guide grooves (not shown in the drawings) are provided in the chassis frame 2, the motherboard 11 is disposed at one end of the guide grooves, and the plurality of daughter boards 31 are respectively slidably connected to the plurality of guide grooves.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting. Although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some of the technical features thereof can be replaced by equivalents. Such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model, and are intended to be included in the scope of the present utility model.

Claims

1. The photoelectric interconnection system is characterized by comprising a motherboard assembly, a chassis frame and a plurality of daughter board assemblies, wherein the motherboard assembly comprises a motherboard, guide pins, a connector socket module and optical fibers, the motherboard is arranged at one end of the chassis frame, and the guide pins and the connector socket module are arranged on the motherboard; the optical fiber is buried in the motherboard, and the end part of the optical fiber extends to the connector socket module;

2. The optoelectronic interconnect system of claim 1, wherein said connector receptacle module comprises a plurality of connector receptacles, a plurality of said connector receptacles being disposed on said motherboard in spaced relation, at least one of said connector receptacles comprising a receiving cavity, two first side plates, two second side plates, and two first dust doors, two of said first side plates being disposed opposite one another in said receiving cavity, a gap being disposed between said first side plates and an inner wall of said receiving cavity; the two second side plates are arranged between the two first side plates; the two first dustproof doors are respectively arranged on the two first side plates, the two first dustproof doors are respectively connected with the two second side plates in a rotating way, and when the two first dustproof doors seal the containing cavity, one end of each first dustproof door extends to a position between the side plate and the inner wall of the containing cavity; when the two first dustproof doors open the accommodating cavity, the first dustproof doors and the first side plate are positioned in the same plane;

3. The optoelectronic interconnect system of claim 2, wherein the first dust door is rotatably coupled to the second side plate by providing a first door shaft having a first torsion spring disposed thereon;

4. The optoelectronic interconnect system of claim 2, wherein each of said connector receptacles is provided with a guide post and a receptacle, each of said connector plugs is provided with a guide hole for plugging in said guide post and a pin for plugging in said pin.

5. The optoelectronic interconnect system of claim 2, wherein the first dust door outer perimeter is provided with a first seal ring and the second dust door outer perimeter is provided with a second seal ring; and a third sealing ring is arranged on the periphery of the shell.

6. The optical-electrical interconnect system of claim 1, wherein the plurality of connector receptacles are MT-type connector receptacles, jumper-type connector receptacles, and opto-electrical integral connector receptacles, respectively; the connector plugs are respectively an MPO type connector plug, a jumper type connector plug and an optoelectronic integrated connector plug, the MT type connector socket is connected with the MPO type connector plug, the jumper type connector socket is connected with the jumper type connector plug, and the optoelectronic integrated connector socket is connected with the optoelectronic integrated connector plug.

7. The optical-electrical interconnection system of claim 1, wherein an opening is provided in the motherboard, the opening facing the daughter board, the connector receptacle module being disposed at the opening, the optical fiber having one end extending to the opening.

8. The optoelectronic interconnect system of claim 1, wherein a plug-in assembly is disposed on the daughter board, the plug-in assembly comprising a panel and a plug-in aid, the panel disposed at an end of the daughter board distal to the connector plug module, the panel abutting the chassis frame; the pull-out aid is arranged on one side of the panel, which is away from the machine box frame.

9. The optoelectronic interconnect system of claim 8, wherein an end of the chassis frame remote from the motherboard is provided with a latch that engages the pull-up aid.

10. The optoelectronic interconnect system of claim 1, wherein a plurality of guide slots are disposed in the cage frame, the motherboard is disposed at one end of the guide slots, and the plurality of daughter boards are slidably coupled to the plurality of guide slots, respectively.