CN222365112U - Optical module and communication interface device - Google Patents

Abstract

The utility model provides an optical module including a fixing seat, a top cover, a circuit board assembly, and an optical assembly. The top cover and the fixing seat form a module cavity, and the circuit board assembly and the optical assembly are arranged in the module cavity. The fixing seat includes a bottom, a sealing side wall, an optical port side wall, and an opening. The utility model also provides a communication interface device, which includes the optical module, a communication connector plugged into the optical module, and a communication circuit board receiving the communication connector. The optical module and its communication interface device of the utility model have a compact structure and layout, save space, are easy to integrate and maintain, and can improve the efficiency of the overall system and reduce material costs through lower power consumption.

Description

Optical module and communication interface device

Technical Field

The present utility model relates to the field of optical communications, and in particular, to an optical module and a communication interface device.

Background

With the continuous development of modern communication technology, optical communication technology is becoming the mainstream of building modern communication networks. Optical communication is not only dominant in the professional fields of communication networks, data centers and the like, but also starts to extend to the fields of consumer electronics, medical equipment, intelligent equipment and the like. The optical module is used for realizing the conversion and transmission of photoelectric signals, is the basis of high-speed transmission of optical communication data, and has obvious advantages compared with the traditional HDM I, USB and other data transmission modes in terms of transmission rate.

In addition, the optical module needs to be provided with a corresponding module socket when in use, so that the volume of the optical module is further increased, and for new application fields such as projection display equipment, artificial intelligent robots and the like, the optical module is oversized and difficult to integrate, and cannot meet the application requirements, and therefore, the optical module needs to be miniaturized under a new application scene.

Disclosure of utility model

In view of the above, the present utility model provides an optical module and a communication interface device that can solve the above-mentioned problems.

An optical module includes a holder, a top cover coupled to the holder, a circuit board assembly disposed on the holder, and an optical assembly disposed on the circuit board assembly. The fixing seat and the top cover form a module cavity. The circuit board assembly and the optical assembly are arranged in the module cavity. The fixing seat comprises a bottom, two sealing side walls arranged on two opposite sides of the bottom, a light port side wall connected with the bottom and the sealing side walls, an opening which is arranged on the bottom and opposite to the light port side wall, and a mounting part arranged on the bottom and facing to the outside of the opening. The mounting portion extends away from the light port side wall.

Further, the fixing base further comprises a plurality of abutting grooves arranged on the fixing base, a plurality of limiting parts arranged in the fixing base, the abutting grooves are arranged on the side wall of the light port and the sealing side wall, and the abutting grooves are arranged at the positions where the fixing base and the top cover are attached.

Further, the limiting part comprises a plurality of height limiting parts and a plurality of horizontal limiting parts arranged above the height limiting parts.

Further, the top cover includes a cover plate, an electric port side cover provided on the cover plate, and an optical port side cover provided opposite to the electric port side cover at a position of the cover plate, the arrangement direction of the electric port side cover and the optical port side cover being parallel to the arrangement direction of the opening and the optical port side wall, and the electric port side cover being provided with an electric port opposite to the cover plate side.

Further, the optical port side wall comprises at least one photoelectric notch arranged on the optical port side wall, the photoelectric notch is arranged at the edge of the optical port side wall opposite to the bottom, the optical port side cover is provided with one electric notch at the edge close to the cover plate, and two optical notches, the electric notch and the optical port side wall form a cable supply port, and the optical notch and the optical port side cover form an optical fiber port.

Further, the circuit board assembly comprises a circuit board, a plurality of limiting notches arranged on the circuit board, a communication connection part arranged at one end of the circuit board, and a cable electrically connected to the circuit board, wherein the limiting notches are arranged at the edge of the circuit board, the limiting notches are clamped with the horizontal limiting parts, the communication connection part is arranged close to one side of the opening, the communication connection part passes through the electric through hole and is arranged outside the module cavity, the communication connection part is provided with a communication terminal, the cable is arranged below the optical fiber adapter, the cable is electrically connected with the circuit board, and the cable extends outwards along the electric through hole.

Further, the circuit board assembly also includes a plurality of electronic devices disposed on the circuit board, the electronic devices including at least one laser chip and at least one receiver chip.

Further, the optical assembly comprises at least one optical lens arranged on the circuit board and at least one optical fiber adapter overlapping the optical lens, wherein the optical lens is covered above one laser chip and one receiver chip, and an optical fiber is arranged in the optical fiber adapter and extends outwards through the module cavity.

A communication interface device comprising at least one communication interface component and at least one optical module as defined above disposed on said communication interface component.

Further, the communication interface assembly further comprises a communication connector, a communication circuit board for receiving the communication connector, the communication circuit board is fixedly connected with the mounting part through a fastener, the communication connector comprises an interface seat arranged on the communication circuit board, and an interface terminal arranged in the interface seat, one end of the interface terminal is electrically connected with the communication terminal of the optical module, and the other end of the interface terminal is electrically connected with the communication circuit board.

Compared with the prior art, the optical module and the communication interface device provided by the utility model are convenient for miniaturized integrated use of the optical module by arranging the fixing seat and the top cover. The top cover and the fixing seat form the module cavity, so that the heat dissipation capacity of the optical module is ensured. The optical lens and the optical fiber adapter are all arranged in the module cavity and attached to the circuit board, so that the whole structure is more compact. The photoelectric notch on the fixing seat, the electric notch arranged on the top cover and the optical notch form the optical fiber through hole and the cable through hole, the optical fiber is convenient to leave the module cavity through the optical fiber through hole, and the cable leaves the module cavity through the cable through hole, so that the use space is reduced. The setting of installation department makes the optical module can be installed to through simple mounting communication circuit board is last, has replaced the module socket that current optical module used, makes the whole installation and the dismantlement of optical module simplify, the integrated use under the miniaturized scene of being convenient for.

Drawings

Fig. 1 is a schematic structural diagram of an optical module and a communication interface device provided by the present utility model.

Fig. 2 is a schematic view of the structure of the top cover shown in fig. 1.

Fig. 3 is a schematic structural diagram of the fixing base in fig. 1.

Fig. 4 is a rear view of the optical module of fig. 1.

Detailed Description

Specific embodiments of the present utility model are described in further detail below. It should be understood that the description herein of the embodiments of the utility model is not intended to limit the scope of the utility model.

Fig. 1 to fig. 4 are schematic structural diagrams of an optical module and a communication interface device according to the present utility model.

The optical module includes a holder 10, a top cover 20 coupled to the holder 10, a circuit board assembly 30 disposed on the holder 10, and an optical assembly 40 disposed on the circuit board assembly 30. It is conceivable that the optical module further comprises other functional modules, such as connection components, mounting components, etc., which are known to the person skilled in the art and are not described here in any greater detail.

The fixing base 10 and the top cover 20 form a module cavity, and the circuit board assembly 30 and the optical assembly 40 are disposed in the module cavity. The module cavity is hollow in the interior to form a cavity body, so that heat dissipation is facilitated. The fixing base 10 includes a bottom 11, two sealing side walls 12 disposed on two opposite sides of the bottom 11, a light port side wall 13 connecting the bottom 11 and the sealing side wall 12, an opening 14 disposed on the bottom 11 and opposite to the light port side wall 13, a mounting portion 15 disposed on the bottom 11 and facing the outside of the opening 14, a plurality of abutting grooves 16 disposed on the fixing base 10, and a plurality of limiting portions 17 disposed in the fixing base 10. The holder 10 may be made of a metal material so as to dissipate heat.

The light port sidewall 13 includes a photoelectric indentation 131 disposed on the light port sidewall 13. The photoelectric notch 131 is disposed at an edge of the light port sidewall 13 facing away from the bottom 11. The arrangement of the optoelectronic notches 131 is related to the arrangement of the cover 20 described below, and is specifically described in detail at the cover 20 described below.

The mounting portion 15 is provided on a side of the bottom portion 11 close to the opening 14. The mounting portion 15 extends away from the light port sidewall 13. The mounting portion 15 is used for setting a fixing member to fix the optical module to the communication interface device.

The abutment groove 16 is provided on the light-port side wall 13 and the seal side wall 12. The abutting groove 16 is arranged at the position where the fixing seat 10 is attached to the top cover 20, so that the top cover 20 can be covered on the fixing seat 10.

The limiting part 17 is arranged above the bottom 11 and along the sealing side wall 12. The limiting portion 17 includes a plurality of height limiting portions 171, and a plurality of horizontal limiting portions 172 disposed above the height limiting portions 171. In the present embodiment, the horizontal limiting portions 172 attached to the different sealing side walls 12 are oppositely disposed on the two height limiting portions 171 adjacent to the opening 14. The height limiting portion 171 and the horizontal limiting portion 172 are provided in connection with the circuit board assembly 30 described below, and are described in detail in connection with the circuit board assembly 30 described below.

The top cover 20 includes a cover plate 21, an electric port side cover 22 provided on the cover plate 21, and an optical port side cover 23 provided at a position of the cover plate 21 and opposite to the electric port side cover 22. The electric port side cover 22 is provided with an electric port 221 on a side remote from the cover plate 21. The alignment direction of the electric port side cover 22 and the optical port side cover 23 is parallel to the alignment direction of the opening 14 and the optical port side wall 13. The electrical port 221 and the bottom 11 form a channel through which the circuit board assembly 30 passes, so that the minimum distance between the electrical port 221 and the bottom 11 is greater than the thickness of the circuit board assembly 30, so that a portion of the circuit board assembly 30 can pass through the module cavity to be disposed outside the module cavity, thereby facilitating heat dissipation and connection with the communication interface device. The optical port-side cover 23 is provided with an electrical notch 231 near the edge of the cover 21, and two optical notches 232. The electrical notch 231 and the optical port sidewall 13 form a cable port 200. The light notch 232 forms a fiber port 100 with the port side cover 23. In this embodiment, the photoelectric notch 131 on the side wall 13 of the optical port opposite to the bottom 11 is provided in an inverted convex shape. The inverted convex shape includes a first step and a second step disposed under the first step. The optical notch 232 and the first step form the optical fiber port 100, and the electrical notch 231 and the second step form the cable port 200.

When the top cover 20 is buckled with the fixing base 10, the top cover 20 is clamped between the sealing side walls 12, the electric mouth-side cover 22 is covered on the opening 14, and the light mouth-side cover 23 is covered on the light mouth side wall 13. The electrical port 221 is capped with the bottom 11 to form a through opening from which the circuit board assembly 30 extends. The photoelectric notch 131 is covered with the electric notch 231 and the optical notch 232 to form the cable port 200 and the optical fiber port 100.

The circuit board assembly 30 includes a circuit board 31, a plurality of limit notches 32 provided on the circuit board 31, a plurality of electronic devices 33 provided on the circuit board 31, a communication connection portion 34 provided at one end of the circuit board 31, and a cable 35 electrically connected to the circuit board 31.

The circuit board 31 is provided with circuit traces, and the electronic device 33 is electrically connected through the circuit traces, so that functions such as power supply, photoelectric signal conversion, electric signal transmission and the like can be realized. The height limiting parts 171 are provided at equal heights so that the circuit board 31 is parallel to the bottom 11 to be maintained horizontal. A plurality of the height limiting sections 171 near the side of the opening 14 are connected to the mounting section 15 for providing support for the connection of the circuit board 31 and the communication interface device. The height limiting part 171 supports the circuit board 31, so as to prevent the circuit board 31 from being directly attached to the bottom 11, so that the electronic device 33 disposed on the circuit board 31 towards the bottom 11 is not in contact with the bottom 11, and thus the electronic device 33 is prevented from being damaged.

The limit notch 32 is disposed at an edge of the circuit board 31. The limiting notch 32 is engaged with the horizontal limiting portion 172, so that the circuit board 131 is blocked by the horizontal limiting portion 172 and does not move horizontally. In this embodiment, the horizontal limiting portion 172 and the limiting notch 32 are both semicircular. The shape and size of the limiting notch 32 are the same as the shape and size of the horizontal limiting portion 172, so that the horizontal limiting portion 172 and the limiting notch 32 are not engaged with each other in a clearance manner. The lowest height of the horizontal limiting portion 172 on the sealing side wall 12 is smaller than or equal to the lowest height of the circuit board 31 on the sealing side wall 12, and the highest height of the horizontal limiting portion 172 on the sealing side wall 12 is larger than or equal to the highest height of the circuit board 31 on the sealing side wall 12, so that the clamping surface of the limiting notch 32 is completely arranged on the horizontal limiting portion 172.

The electronics 33 comprise at least one laser chip and at least one receiver chip. The laser chip is used for generating a module optical signal, and the receiver chip is used for converting an external optical signal into an electrical signal.

The communication connection 34 is arranged outside the module cavity through the electrical port 211. The communication connection part 34 is provided with a communication terminal 341.

The cable 35 is disposed below the optical module 40, and the cable 35 extends outwardly along the cable port 200 to provide power to the optical module.

The optical assembly 40 includes at least one optical lens 41 disposed on the circuit board 31, and at least one fiber optic adapter 42 overlapping the optical lens 41. The optical lens 41 covers one of the laser chips and one of the receiver chips. The optical lens 41 is used for transmitting and deflecting the optical signal. The optical adapter 42 is configured to receive an optical signal input from the outside and output an optical signal generated from the laser chip. The fiber optic adapters 42 provide optical fibers that extend outwardly through the module cavity. The method for installing the optical fiber adapter 42 on the optical lens 41 is a general technology, and will not be described herein. The optical lens 41 couples the optical signal generated by the laser chip into the optical fiber adapter 42 during electro-optical conversion, and the optical signal input from outside is emitted from the optical fiber to the receiver chip during photoelectric conversion, and the optical signal outside the receiver chip is converted into an electrical signal.

The present application also provides a communication interface device comprising at least one communication interface assembly 50 and at least one optical module arranged on the communication interface assembly 50. It is conceivable that the communication interface device further comprises other functional modules, such as connection components, mounting components, etc., which are known to the person skilled in the art and are not described here in detail.

The communication interface assembly 50 is further provided with a communication connector 51, and a communication circuit board 52 for receiving the communication connector 51. The communication connector 51 includes an interface block 511 mounted on the communication circuit board 52, and interface terminals 512 provided in the interface block 511. The interface holder 511 is inserted into the communication connection portion 34 of the optical module. The interface terminal 512 has one end electrically connected to the communication terminal 341 of the optical module and the other end electrically connected to the communication circuit board 52. The communication circuit board 52 is fixedly connected with the mounting portion 15 by a fastener.

Compared with the prior art, the optical module and the communication interface device provided by the utility model are convenient for miniaturized integrated use of the optical module by arranging the fixing seat 10 and the top cover 20. The top cover 20 and the fixing base 10 form the module cavity, so that the heat dissipation capability of the optical module is ensured. The optical lens 41 and the optical fiber adapter 42 of the cable 35 are all disposed in the module cavity and attached to the circuit board 31, so that the overall structure is more compact. The optical fiber through hole 100 and the cable through hole 200 are formed by the optical fiber gap 131 on the fixing base 10, the electrical gap 231 arranged on the top cover 20 and the optical gap 232, so that the optical fiber can leave the module cavity through the optical fiber through hole 100, and the cable 35 can leave the module cavity through the cable through hole 200, thereby reducing the use space. The arrangement of the mounting portion 15 enables the optical module to be mounted on the communication circuit board 52 through a simple fixing piece, replaces a module socket used by an existing optical module, enables the integral mounting and dismounting of the optical module to be simplified, and facilitates the integrated use in a miniaturized scene.

The above is only a preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model, and any modifications, equivalent substitutions or improvements within the spirit of the present utility model are intended to be covered by the claims of the present utility model.

Claims (10)

1. The optical module is characterized by comprising a fixed seat, a top cover coupled with the fixed seat, a circuit board assembly arranged on the fixed seat, and an optical assembly arranged on the circuit board assembly, wherein a module cavity is formed by the fixed seat and the top cover, the module cavity is internally provided with the circuit board assembly and the optical assembly, the fixed seat comprises a bottom, two sealing side walls arranged on two opposite sides of the bottom, an optical port side wall connecting the bottom and the sealing side wall, an opening which is arranged on the bottom and opposite to the optical port side wall, and a mounting part which is arranged outside the opening and extends back to the optical port side wall.

2. The optical module of claim 1, wherein the holder further comprises a plurality of abutting grooves formed in the holder, a plurality of limiting portions formed in the holder, the abutting grooves formed in the side wall of the optical port and the sealing side wall, and the abutting grooves formed in the positions where the holder and the top cover are attached.

3. The optical module of claim 2, wherein the spacing portion comprises a plurality of height spacing portions and a plurality of horizontal spacing portions disposed above the height spacing portions.

4. The optical module of claim 3 wherein said top cover includes a cover plate, an electrical port-side cover disposed on said cover plate, and an optical port-side cover disposed opposite said cover plate at a location of said cover plate, said electrical port-side cover and said optical port-side cover being aligned parallel to the alignment of said opening and said optical port side wall, said electrical port-side cover being provided with an electrical port opposite said cover plate.

5. The optical module of claim 4, wherein the optical port side wall includes at least one optoelectronic notch disposed on the optical port side wall, the optoelectronic notch being disposed at an edge of the optical port side wall facing away from the bottom, the optical port side cover having an electrical notch at an edge adjacent to the cover plate, and two optical notches, the electrical notch and the optical port side wall forming a cable feed through, the optical notch and the optical port side cover forming an optical fiber feed through.

6. The optical module of claim 4, wherein the circuit board assembly comprises a circuit board, a plurality of limiting notches arranged on the circuit board, a communication connection part arranged at one end of the circuit board, and a cable electrically connected to the circuit board, wherein the limiting notches are arranged at the edge of the circuit board, the limiting notches are clamped with the horizontal limiting part, the communication connection part is arranged near one side of the opening, the communication connection part passes through the electric opening and is arranged outside the module cavity, the communication connection part is provided with a communication terminal, the cable is arranged below the optical assembly, and the cable extends outwards along the electric opening.

7. The optical module of claim 6, wherein the circuit board assembly further comprises a plurality of electronic devices disposed on the circuit board, the electronic devices including at least one laser chip and at least one receiver chip.

8. The optical module of claim 7 wherein said optical assembly includes at least one optical lens disposed on said circuit board and at least one fiber optic adapter overlapping said optical lens, said optical lens being housed over one of said laser chips and one of said receiver chips, said fiber optic adapter having optical fibers disposed therein, said optical fibers extending outwardly through said module cavity.

9. A communication interface device, characterized in that it comprises at least one communication interface component and at least one optical module according to any one of claims 1 to 8 arranged on the communication interface component.

10. The communication interface device of claim 9, wherein the communication interface assembly further comprises a communication connector, a communication circuit board for receiving the communication connector, the communication circuit board being fixedly connected to the mounting portion by a fastener, the communication connector comprising an interface holder mounted on the communication circuit board, and interface terminals provided in the interface holder, one end of the interface terminals being electrically connected to the communication terminals of the optical module, and the other end of the interface terminals being electrically connected to the communication circuit board.