CN210038254U

CN210038254U - SFF optical module

Info

Publication number: CN210038254U
Application number: CN201921077676.5U
Authority: CN
Inventors: 路绪刚
Original assignee: HEBEI HYMAX OPTOELECTRONIC Inc
Current assignee: HEBEI HYMAX OPTOELECTRONIC Inc
Priority date: 2019-07-11
Filing date: 2019-07-11
Publication date: 2020-02-07
Anticipated expiration: 2029-07-11

Abstract

The application provides an SFF optical module, comprising: the optical module cavity formed by assembling the bottom shell and the upper shell accommodates and fixes the photoelectric part, the pressing block fixes the BOSA in the photoelectric part in the bottom shell in a clamping manner, and the tail fiber and the BOSA are processed into a whole and perform signal transmission with the BOSA. According to the SFF optical module, the photoelectric part can be stably accommodated in the optical module cavity; the butt joint of the tail fiber and the BOSA is firm; the bottom shell, the upper shell, the photoelectric part and the pressing block are simply and quickly assembled; and the bottom shell, the upper shell and the pressing block can be repeatedly utilized, so that the cost is saved.

Description

SFF optical module

Technical Field

The utility model relates to an optical communication technical field especially relates to a SFF optical module.

Background

The steady development of the global telecommunication industry and the steady growth of broadband users lay a solid foundation for the development of the optical communication industry. With the continuous improvement of the global bandwidth demand and the expansion of the application fields of data centers and security monitoring optical communication industries, the optical fiber broadband access has become the mainstream communication mode. Under the promotion of popularization of terminals such as smart phones and the like and applications such as video and cloud computing, telecom operators continuously invest in building and upgrading mobile broadband networks and optical fiber broadband networks, and the investment scale of optical communication equipment is further enlarged.

The rapid development of the optical communication industry drives the updating of the optical module. Under the market competition environment with increasingly intense optical communication at present, various high-cost optical modules are more and more, the structure is complex, the requirements of the photoelectric part are higher, and heavier economic cost is brought to enterprises and users, so that an optical module with a simple structure and lower cost is needed to meet the requirements of part of enterprises and users. Therefore, an optical module is needed, which can enable a photoelectric part to be stably accommodated in an optical module cavity; the tail fiber is fixed at the Optical port end of a BOSA (Bi-Directional Optical Sub-Assembly) in the Optical module to transmit Optical signals.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model aims at providing a simple structure, with low costs optical module, makes photoelectric portion stabilize in the optical module cavity, and the tail optical fiber is fixed in the BOSA light mouth end in the optical module, carries out optical signal's transmission.

In order to achieve the above object, an embodiment of the present invention provides an SFF (Small Form Factor) optical module, including: the optical module cavity formed by assembling the bottom shell and the upper shell is used for accommodating and fixing the photoelectric part, the pressing block is used for clamping and fixing the BOSA in the photoelectric part in the bottom shell, and the tail fiber and the BOSA are processed into a whole and are used for signal transmission with the BOSA.

The bottom shell is provided with a part of optical fiber ports and an installation block at one end of the shell, heat dissipation holes are formed in the other end and two sides of the shell, a positioning column, a lower positioning surface, a lower boss and a strip hole are arranged inside the shell, a positioning pin is arranged on the bottom surface outside the shell, the installation block is provided with a positioning hole, a threaded hole and a part of installation groove, and the lower boss is provided with a lower boss positioning surface and a threaded hole;

the upper shell is provided with a partial optical fiber opening at one end of the shell, heat dissipation holes are arranged at the other end and two sides of the shell, an upper positioning surface, an upper boss and a mark bulge are arranged inside the shell, a label groove and a direction groove are arranged on the bottom surface outside the shell, clamping columns are arranged at two ends of the shell, the upper boss is provided with an upper boss positioning surface and a screw hole, the partial optical fiber opening of the upper shell is matched with the partial optical fiber opening of the bottom shell to form a complete optical fiber opening for penetrating tail fibers of the photoelectric part, the clamping columns are inserted into the cavity of the bottom shell to enable the upper shell and the bottom shell to be mutually positioned, screws penetrate through the screw holes in the upper boss to be screwed in threaded holes in the lower boss, the bottom shell and the upper shell are assembled and fixed to form an optical module cavity for accommodating the photoelectric part, the direction groove is a bidirectional arrow groove on the bottom surface outside the upper shell and is used, different colors are filled in the grooves to mark different working wavelengths of the optical module;

the photoelectric part includes: a functional circuit board, a BOSA and a pin header body, wherein the functional circuit board is provided with pin holes and clamping grooves at two sides, a plurality of welding points are arranged at one end, a through hole is arranged at the other end, the BOSA is provided with a pin, the pin gang body is provided with a rod needle and a fixed seat, a plurality of rod needles are fixedly inserted into the fixed seat to form the pin gang body, one end of a rod needle in the row of needle bodies is inserted into the needle hole and welded, a pin of the BOSA is welded at the welding spot, so that the functional circuit board, the BOSA and the pin header body are welded into a whole component to form the photoelectric part, the other end of the rod needle in the pin header body is inserted into a needle hole in the host circuit board and welded, so that the pin header body is connected with the functional circuit board and the host circuit board to transmit electric signals, the BOSA converts the electric signals in the functional circuit board into optical signals to communicate with remote equipment, or converting the optical signal received from the remote equipment into an electric signal and transmitting the electric signal to the functional circuit board;

the pressing block is provided with a positioning pin, a screw hole and a part of mounting grooves, the part of mounting grooves of the pressing block and the part of mounting grooves of the mounting block are matched to form a complete mounting groove for accommodating and fixing the BOSA, the positioning pin is inserted into the positioning hole in the mounting block to position the pressing block, and then a screw penetrates through the screw hole of the pressing block to be screwed in the threaded hole of the mounting block, so that the pressing block is fixedly mounted on the mounting block and the BOSA is fixed in the optical module cavity.

In the SFF optical module, the fixing base is made of an insulating and flame-retardant material.

The optical module further comprises a tail fiber, and the tail fiber is fixedly connected with the BOSA and is used for transmitting optical signals.

According to the SFF optical module, the photoelectric part can be stably accommodated in the optical module cavity; the butt joint of the tail fiber and the BOSA is firm; the bottom shell, the upper shell, the photoelectric part and the pressing block are simply and quickly assembled; and the bottom shell, the upper shell and the pressing block can be repeatedly utilized, so that the cost is saved.

Drawings

Fig. 1 is an exploded view of an SFF optical module according to an embodiment of the present disclosure;

fig. 2 is an exploded view of a SFF optical module according to an embodiment of the present disclosure;

fig. 3 is a first assembly effect diagram of an SFF optical module according to an embodiment of the present disclosure:

FIG. 4 is a second diagram illustrating an assembling effect of an SFF optical module according to an embodiment of the present disclosure;

fig. 5 is a first schematic view of a bottom case of an SFF optical module according to an embodiment of the present disclosure;

fig. 6 is a schematic view of a bottom case of an SFF optical module according to an embodiment of the present application;

fig. 7 is a first schematic view of an upper case of an SFF optical module according to an embodiment of the present application;

fig. 8 is a schematic diagram of an upper case of an SFF optical module according to an embodiment of the present application;

fig. 9 is an assembly diagram of an optoelectronic part of an SFF optical module according to an embodiment of the present application;

FIG. 10 is a schematic diagram of a circuit board in an optoelectronic portion according to an embodiment of an SFF optical module of the present application;

fig. 11 is a schematic diagram of a pin header in a photoelectric portion according to an embodiment of the SFF optical module of the present application;

fig. 12 is a schematic diagram of a compact of an SFF optical module according to an embodiment of the present application.

The reference numerals are explained below:

100 bottom shell

110 part of optical fiber port 120 mounting block 121, positioning hole 122, threaded hole 123 and part of mounting groove

130 heat dissipation hole 140 positioning column 150 lower positioning surface 160 lower boss 161 lower boss positioning surface

162 threaded hole 170 elongated hole 180 positioning pin

200 upper case

210 part of optical fiber port 220 heat dissipation hole 230 upper positioning surface 240 upper boss 241 upper boss positioning surface

242 screw hole 250 identification projection 260 label slot 270 direction slot 280 snap post

300 photoelectric part

310 function circuit board 311 pinhole 312 welding point 313 clamping groove 314 through hole 320BOSA

321 pin 330 row needle body 331 bar needle 332 fixing seat

400 briquetting

410 positioning column 420 screw hole 430 part mounting groove

500 tail fiber

600 screw

Detailed Description

Specific embodiments of the present application will be described in detail below. It should be noted that the embodiments described herein are only for illustration and are not intended to limit the present application.

Fig. 1 and fig. 2 are exploded views of an embodiment of an SFF optical module of the present application, fig. 3 and fig. 4 are assembled effect views of an SFF optical module of the present application, fig. 5 to fig. 8 are schematic views of a bottom shell and an upper shell of an SFF optical module of the present application, fig. 9 is an assembled schematic view of an optoelectronic portion of an SFF optical module of the present application, fig. 10 is a schematic view of a functional circuit board of an SFF optical module of the present application, fig. 11 is a schematic view of a pin header in an optoelectronic portion of an SFF optical module of the present application, and fig. 12 is a schematic view of a press block of an embodiment of an SFF optical module of the present application.

As shown in fig. 1 to 4, the clip 280 of the upper case 200 is inserted into the cavity of the bottom case 100 to relatively position the upper case 200 and the bottom case 100, and the screw 600 is inserted into the screw hole 242 of the upper boss 240 and screwed into the screw hole 162 of the lower boss 160, so that the upper case 200 and the bottom case 100 are assembled and fixed to form an optical module cavity for receiving and fixing the optoelectronic part 300.

Referring to fig. 5 and 6, the bottom housing 100 has a portion of the optical fiber opening 110 and the mounting block 120 at one end of the housing, heat dissipation holes 130 at the other end and both sides of the housing, a positioning post 140, a lower positioning surface 150, a lower boss 160 and a long hole 170 inside the housing, a positioning pin 180 at the bottom of the housing, a positioning hole 121, a threaded hole 122 and a portion of the mounting groove 123 in the mounting block 120, and a lower boss positioning surface 161 and a threaded hole 162 in the lower boss 160.

Referring to fig. 7 and 8, the upper case 200 is provided with a partial optical fiber port 210 at one end of the case, heat dissipation holes 220 are provided at the other end and two sides of the case, an upper positioning surface 230, an upper boss 240 and an identification protrusion 250 are provided inside the case, a label slot 260 and a direction slot 270 are provided at the bottom surface outside the case, clamping posts 280 are provided at two ends of the case, the upper boss 240 is provided with an upper boss positioning surface 241 and screw holes 242, and the partial optical fiber port 210 of the upper case 200 is matched with the partial optical fiber port 110 of the bottom case 100 to form a complete optical fiber port for passing through the pigtail 500 of the optoelectronic part 300.

As shown in fig. 9 and 11, the photovoltaic unit 300 includes: a functional circuit board 310, a BOSA320 and a pin header 330, the functional circuit board 310 has a pin hole 311 and a slot 313 on two sides, a plurality of welding points 312 are arranged at one end, a through hole 314 is arranged at the other end, a base pin 321 is arranged on the BOSA320, a pin 331 and a fixed seat 332 are arranged on the pin row body 330, the pin 331 is fixedly inserted into the fixed seat 332 to form the pin row body 330, one end of the pin 331 in the pin row body 330 is inserted into the pin hole 311 and welded, the pin 321 of the BOSA320 is welded at the welding points 312, so that the functional circuit board 310, the BOSA320 and the pin header 330 are welded as an integral component to form the optoelectronic part 300, the other end of the pin 331 in the pin header 330 is inserted into a pin hole in the host circuit board and welded, the pin header 330 connects the functional circuit board 310 and the host circuit board for transmission of electrical signals, the BOSA320 converts the electrical signals in the functional circuit board 310 into optical signals to communicate with remote equipment, or convert the optical signal received from the remote device into an electrical signal for transmission to the functional circuit board 310. The fixing base 332 is made of an insulating and flame-retardant material.

As shown in fig. 12, the press block 400 is provided with a positioning pin 410, a screw hole 420 and a part of mounting grooves 430, the part of mounting grooves 430 of the press block 400 is matched with the part of mounting grooves 123 in the mounting block 120 to form a complete mounting groove for accommodating and fixing the BOSA320, the positioning pin 410 is inserted into the positioning hole 121 in the mounting block 120 to position the press block 400 on the mounting block 120, and then the screw 600 is inserted into the screw hole 420 and screwed into the screw hole 122 of the mounting block 120, so that the press block 400 is mounted and fixed on the mounting block 120 of the bottom chassis 100, and the BOSA320 is also fixed in the optical module cavity.

As shown in fig. 9, the pigtail 500 is fixed to the optical port of the BOSA320, so that the pigtail 500 and the optoelectronic unit 300 are integrated, and the pigtail 500 transmits the optical signal of the optical module to communicate with the remote device, or transmits the optical signal of the remote device to the optical module for communication.

As shown in fig. 5 to 9, the optoelectronic component 300 is installed in the cavity of the bottom chassis 100, the fixing seat 332 passes through the elongated hole 170, the locking groove 313 of the functional circuit board 310 is locked to the positioning post 140, the lower positioning surface 150 and the lower boss positioning surface 161 of the bottom chassis 100 are matched with the upper positioning surface 230 and the upper boss positioning surface 241 of the upper chassis 200 to lock and press the functional circuit board 310, so that the functional circuit board 310 is fixed in the optical module cavity, the through hole 314 is a through hole through which the screw 600 passes, the identification protrusion 250 is used to identify a LOGO and an optical module production date, the label slot 260 is used to stick a label description, the direction slot 270 is used to mark that the optical module is a single-fiber bi-directional optical module, different colors are filled in the direction slot 270 to describe different operating wavelengths of the optical module, and the heat dissipation holes 130 and 220 are used to dissipate heat generated during the operation of the optical module, the positioning pin 180 is inserted into the host circuit board and used for positioning and mounting the SFF optical module in the host circuit board.

The present invention has been described in terms of the preferred embodiment, and not by way of limitation, and it is to be understood that the terminology which has been used is intended to be in the nature of words of description and illustration, rather than of limitation. As the present application may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the metes and bounds of the claims, or equivalence of such metes and bounds are therefore intended to be embraced by the appended claims.

Claims

1. An SFF optical module comprising: the optical module comprises a bottom shell, an upper shell, a photoelectric part and a pressing block, wherein the bottom shell and the upper shell are assembled together to form an optical module cavity for accommodating and fixing the photoelectric part, the pressing block is used for clamping and fixing BOSA in the photoelectric part in the bottom shell,

2. The SFF optical module as claimed in claim 1, wherein said mounting base is made of an insulating, flame retardant material.

3. The SFF optical module as claimed in claim 1, wherein said optical module further comprises a pigtail, said pigtail is fixedly connected to said BOSA for transmitting optical signals.