CN210514709U - SFF optical module - Google Patents

Abstract

The application provides an SFF optical module, comprising: the optical module cavity formed by assembling the bottom shell and the upper shell is used for accommodating the fixed photoelectric part and the hook, and the SC optical fiber connector is inserted and locked in the hook and is in butt joint with the BOSA in the photoelectric part for transmitting optical signals. According to the SFF optical module, the photoelectric part can be stably accommodated in the cavity of the optical module; the SC optical fiber connector is simply and quickly locked or unlocked in the hook, and is firmly butted with the BOSA; the bottom shell, the upper shell, the photoelectric part and the hook are simply and quickly assembled; and the bottom shell, the upper shell and the hook can be reused, 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, there is a need for an optical module, in which an optical electrical component can be stably accommodated in an optical module cavity, and an SC optical fiber Connector (Standard optical fiber Connector) can be smoothly latched or unlatched to the optical module for transmitting and receiving optical signals; the optical module shell and the photoelectric part are simply and quickly assembled; and the cost of the optical module is low.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model aims at providing an optical module of simple structure, with low costs, make photoelectric part stabilize in the optical module cavity, SC fiber connector inserts the fiber port in the drain pan, and with BOSA (Bi-directional optical Sub-Assembly) butt joint in the photoelectric part carry out the transmission of optical signal.

In order to achieve the above object, an embodiment of the present invention provides an SFF (Small Form Factor) optical module, including: the optical fiber connector comprises a bottom shell, an upper shell, an optical-electric part and a hook, wherein the bottom shell and the upper shell are assembled in an optical module cavity formed by one key and used for accommodating the fixed optical-electric part, and the SC optical fiber connector is inserted and locked in an optical fiber port in the bottom shell and is in butt joint with a BOSA (Brillouin optical System) in the optical-electric part for transmitting optical signals.

The bottom shell is provided with an optical fiber port, a hook groove and a BOSA groove at one end of the shell, a lower boss, a clamping column and a lower positioning surface are arranged inside the shell, the bottom surface outside the shell is symmetrically provided with a positioning column and a strip hole, heat dissipation holes are arranged at the other end and two sides of the shell, and the lower boss is provided with a lower boss positioning surface and a threaded hole;

the upper shell is provided with a guide groove and a clamping surface at one end of the shell, an upper boss, an upper positioning surface and a marking bulge are arranged inside the shell, a direction groove and a label groove are arranged on the bottom surface outside the shell, heat dissipation holes are arranged at the other end and two sides of the shell, positioning bulges are symmetrically arranged at two ends of the shell, the guide groove is matched with a guide strip in the SC optical fiber connector to guide the SC optical fiber connector to be inserted into the optical fiber port, the SC optical fiber connector is accurately inserted and locked in the hook and accurately butted with the BOSA, the upper boss is provided with an upper boss positioning surface and a screw hole, the direction groove is a bidirectional arrow head type groove, the marking optical module is a single-fiber bidirectional optical module, different colors are filled in the groove body of the direction groove to mark different working wavelengths of the optical module, the label groove is used for pasting a label description of the optical module, and the heat dissipation holes of the bottom shell and the upper shell are used for dissipating heat, the upper shell is buckled on the bottom shell to protect the normal work of the optical module, the positioning bulge is inserted into the cavity of the bottom shell to perform initial positioning assembly, and a screw is inserted into a screw hole of the upper boss and screwed in a threaded hole in the lower boss, so that the upper shell and the bottom shell are assembled and fixed together to form an optical module cavity;

the photoelectric part includes: the pin and the flexible circuit belt are welded to the welding points, so that the functional circuit board, the BOSA and the row needle body are connected into an integral part to form the photoelectric part, the photoelectric part is arranged in the bottom shell cavity, the clamping groove of the functional circuit board is inserted and clamped in the clamping column, the lower positioning surface, the lower boss positioning surface, the upper positioning surface and the upper boss positioning surface are matched and clamped with the functional circuit board, and the functional circuit board is fixed in the optical module cavity, the pin header body penetrates through the strip hole, the other end of the rod pin is inserted into a pin hole in a host circuit board after the positioning column is inserted into a positioning hole in a host device to position an optical module, and then the pin header body is inserted into the pin 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 and transmits the optical signals to other equipment through the SC optical fiber connector, or converts the optical signals received by the SC optical fiber connector from other equipment into electric signals and transmits the electric signals to the functional circuit board;

the hook is provided with a mounting seat, an elastic arm hook and a mounting hole, the mounting seat is inserted into the hook groove, the hook is installed and accommodated in the optical fiber port, the hook is fixed in the optical module cavity under the clamping and pressing of the clamping and pressing surface, the elastic arm hooks are symmetrically arranged on two sides of the mounting seat and used for inserting and locking or unlocking the SC optical fiber connector, and the mounting hole is formed in the mounting seat and used for penetrating the BOSA and is matched with the BOSA groove to fix the BOSA 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 dustproof plug, the dustproof plug is inserted into the hook, the BOSA is protected when the optical module is in a non-working state, LOGO protrusions are arranged on the upper surface and the lower surface of the dustproof plug, the LOGO protrusions not only mark a company trademark LOGO, but also mark friction resistance between fingers and the dustproof plug when the dustproof plug is pulled out outwards, and therefore the dustproof plug can be smoothly inserted out.

According to the SFF optical module, the photoelectric part can be stably accommodated in the cavity of the optical module; the SC optical fiber connector is simply and quickly locked or unlocked in the hook, and is firmly butted with the BOSA; the bottom shell, the upper shell, the photoelectric part and the hook are simply and quickly assembled; and the bottom shell, the upper shell and the hook can be reused, 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 assembling diagram of an SFF optical module according to an embodiment of the present disclosure;

FIG. 4 is a second assembly diagram 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 a first schematic diagram illustrating an assembly of an optoelectronic component according to an embodiment of the SFF optical module of the present application;

fig. 10 is a second schematic assembly diagram of an optoelectronic part according to an embodiment of the SFF optical module of the present application;

fig. 11 is a schematic circuit board diagram of an optoelectronic part according to an embodiment of the SFF optical module of the present application;

fig. 12 is a pin header schematic diagram of an optoelectronic part according to an embodiment of the SFF optical module of the present application;

fig. 13 is a schematic hook diagram of an SFF optical module according to an embodiment of the present application;

fig. 14 is a schematic view of a dust plug of an SFF optical module according to an embodiment of the present application;

fig. 15 is a schematic diagram of an SC fiber connector mated with an embodiment of an SFF optical module according to the present application.

The reference numerals are explained below:

100 bottom shell

110 optical fiber port 120 hook slot 130BOSA slot 140 lower boss 141 lower boss positioning surface 142 threaded hole

150 heat dissipation hole with 180 long holes 190 on lower positioning surface 170 of clamping column 160

200 upper case

210 guide slot 220 clamping and pressing surface 230 upper boss positioning surface 232 screw hole on upper boss 231

Positioning projection 291 positioning projection with projection 260 direction groove 270, label groove 280 and heat dissipation hole 250 marked on positioning surface 250 on 240

292 locating projection

300 photoelectric part

310 functional circuit board 311 pinhole 312 welding point 313 clamping groove 314 through hole 320BOSA 321 pin

322 flexible circuit belt 330 row needle body 331 stick needle 332 fixing seat

400 hook

410 mount 411 mounting hole 412 spring arm hook

500 dustproof plug

510LOGO protrusions

600 screw

700SC optical fiber connector

710 guide strip

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 and fig. 10 are schematic views of an assembly of an optoelectronic part of an SFF optical module of the present application, fig. 11 is a schematic view of a functional circuit board of an SFF optical module of the present application, fig. 12 is a schematic view of a pin header in an optoelectronic part of an SFF optical module of the present application, fig. 13 is a schematic view of a hook of an embodiment of an SFF optical module of the present application, fig. 14 is a schematic view of a dust plug of an embodiment of an SFF optical module of the present application, and fig. 15 is a schematic view of an SC optical fiber.

As shown in fig. 1 to 4, the positioning protrusions 291 and 292 of the upper case 200 are inserted into the cavity of the bottom case 100 to primarily position the upper case 200 and the bottom case 100, and after the screw 600 is inserted into the screw hole 232 of the upper boss 230 and screwed into the screw hole 142 of the lower boss 140, the upper case 200 and the bottom case 100 are fixedly assembled into an optical module cavity for accommodating and fixing the photoelectric part 300 and the hook 400.

Referring to fig. 5 and 6, the bottom housing 100 has a fiber port 110, a hook groove 120, and a BOSA groove 130 at one end of the housing, a lower boss 140, a locking post 150, and a lower positioning surface 160 inside the housing, a positioning post 170 and a long hole 180 symmetrically disposed on the bottom surface outside the housing, heat dissipation holes 190 disposed at the other end and two sides of the housing, and a lower boss positioning surface 141 and a threaded hole 142 disposed on the lower boss 140.

Referring to fig. 7 and 8, the upper case 200 has a guide groove 210 and a clamping surface 220 at one end of the case, an upper boss 230, an upper positioning surface 240 and a marking protrusion 250 in the case, a direction groove 260 and a label groove 270 in the bottom surface of the outside of the case, heat dissipation holes 280 at the other end and both sides of the case, positioning protrusions 291 and 292 symmetrically arranged at both ends of the case, a guide strip 710 in the SC optical fiber connector 700 matching the guide groove 210 to guide the SC optical fiber connector 700 to be inserted into the optical fiber port 110, to be accurately latched to the hook 400 and to be accurately abutted to the BOSA320, an upper boss positioning surface 231 and a screw hole 232 arranged on the upper boss 230, a direction groove 260 being a bidirectional arrow-shaped groove, marking the optical module as a single-fiber bidirectional optical module, and filling different colors in the groove body of the direction groove 260 to mark different operating wavelengths of the optical module, and a label groove 270 for attaching a label description of the optical, the heat dissipation holes 190 of the bottom case 100 and the heat dissipation holes 280 of the top case 200 are used for dissipating heat generated by the optical module during the working process to the outside of the optical module cavity, so as to protect the optical module from working normally.

As shown in fig. 9 to 12, the photovoltaic unit 300 includes: a functional circuit board 310, a BOSA320 and a pin row body 330, wherein the functional circuit board 310 has pin holes 311 on two sides, a slot 313 on one side, a plurality of solder points 312 on one end, a through hole 314 on the other end, the BOSA320 has pins 321 and a flexible circuit tape 322, the pin row body 330 has pins 331 and a fixed base 332, the plurality of pins 331 are inserted into the fixed base 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 pins 321 of the BOSA320 and the flexible circuit tape 322 are welded to the solder points 312, so that the functional circuit board 310, the BOSA320 and the pin row body 330 are connected to form an integral component to form an optical circuit 300, the optical circuit 300 is installed in the cavity of the bottom chassis 100, the slot 313 of the functional circuit board 310 is located in the pin column 150, the lower positioning surface 160, the lower boss positioning surface 141, the upper positioning surface 240, the upper boss positioning surface 231 cooperate with the pressing the functional circuit board 310 to, the through hole 314 is used for passing through the screw 600, the pin header body 330 penetrates through the long hole 180, the other end of the pin 331 is inserted into a positioning hole in the host device for positioning an optical module after the positioning column 170 is inserted into the positioning hole in the host device, and then is inserted into a pin hole in the host circuit board and is welded, so that the pin header body 330 is connected with the functional circuit board 310 and the host circuit board for transmitting an electrical signal, the BOSA320 converts the electrical signal in the functional circuit board 310 into an optical signal and transmits the optical signal to other equipment through the SC optical fiber connector 700, or converts the optical signal received by the SC optical fiber connector 700 from other equipment into.

Referring to fig. 13, the hook 400 includes a mounting seat 410, an elastic arm hook 412 and a mounting hole 411, the mounting seat 410 is inserted into the hook slot 120, the hook 400 is installed and accommodated in the optical fiber port 110, the hook 400 is fixed in the optical module cavity under the clamping pressure of the clamping pressure surface 220, the elastic arm hooks 412 are symmetrically disposed on two sides of the mounting seat 410 for inserting and locking or unlocking the SC fiber connector 700, and the mounting hole 411 is disposed on the mounting seat 410 for penetrating the BOSA320 and cooperating with the BOSA slot 130 to fix the BOSA320 in the optical module cavity.

As shown in fig. 14, the dust plug 500 is inserted into the hook 400, the BOSA320 is protected when the optical module is in a non-operating state, the dust plug 500 is provided with LOGO protrusions 510 on the upper and lower surfaces, the LOGO protrusions 510 both indicate LOGO of a company, and friction resistance between fingers and the dust plug 500 is also achieved when the dust plug 500 is pulled out outwards, so that the dust plug 500 is smoothly inserted.

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 (3)

1. An SFF optical module comprising: the optical module comprises a bottom shell, an upper shell, an optoelectronic part and a hook, wherein the bottom shell and the upper shell are assembled together to form an optical module cavity for accommodating and fixing the optoelectronic part and the hook, an SC optical fiber connector is inserted and locked in the hook and is in butt joint with BOSA in the optoelectronic part for transmitting optical signals,

the bottom shell is provided with an optical fiber port, a hook groove and a BOSA groove at one end of the shell, a lower boss, a clamping column and a lower positioning surface are arranged inside the shell, the bottom surface outside the shell is symmetrically provided with a positioning column and a strip hole, heat dissipation holes are arranged at the other end and two sides of the shell, and the lower boss is provided with a lower boss positioning surface and a threaded hole;

the upper shell is provided with a guide groove and a clamping surface at one end of the shell, an upper boss, an upper positioning surface and a marking bulge are arranged inside the shell, a direction groove and a label groove are arranged on the bottom surface outside the shell, heat dissipation holes are arranged at the other end and two sides of the shell, positioning bulges are symmetrically arranged at two ends of the shell, the guide groove is matched with a guide strip in the SC optical fiber connector to guide the SC optical fiber connector to be inserted into the optical fiber port, the SC optical fiber connector is accurately inserted and locked in the hook and accurately butted with the BOSA, the upper boss is provided with an upper boss positioning surface and a screw hole, the direction groove is a bidirectional arrow head type groove, the marking optical module is a single-fiber bidirectional optical module, different colors are filled in the groove body of the direction groove to mark different working wavelengths of the optical module, the label groove is used for pasting a label description of the optical module, and the heat dissipation holes of the bottom shell and the upper shell are used for dissipating heat, the upper shell is buckled on the bottom shell to protect the normal work of the optical module, the positioning bulge is inserted into the cavity of the bottom shell to perform initial positioning assembly, and a screw is inserted into a screw hole of the upper boss and screwed in a threaded hole in the lower boss, so that the upper shell and the bottom shell are assembled and fixed together to form an optical module cavity;

the photoelectric part includes: the pin and the flexible circuit belt are welded to the welding points, so that the functional circuit board, the BOSA and the row needle body are connected into an integral part to form the photoelectric part, the photoelectric part is arranged in the bottom shell cavity, the clamping groove of the functional circuit board is inserted and clamped in the clamping column, the lower positioning surface, the lower boss positioning surface, the upper positioning surface and the upper boss positioning surface are matched and clamped with the functional circuit board, and the functional circuit board is fixed in the optical module cavity, the pin header body penetrates through the strip hole, the other end of the rod pin is inserted into a pin hole in a host circuit board after the positioning column is inserted into a positioning hole in a host device to position an optical module, and then the pin header body is inserted into the pin 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 and transmits the optical signals to other equipment through the SC optical fiber connector, or converts the optical signals received by the SC optical fiber connector from other equipment into electric signals and transmits the electric signals to the functional circuit board;

the hook is provided with a mounting seat, an elastic arm hook and a mounting hole, the mounting seat is inserted into the hook groove, the hook is installed and accommodated in the optical fiber port, the hook is fixed in the optical module cavity under the clamping and pressing of the clamping and pressing surface, the elastic arm hooks are symmetrically arranged on two sides of the mounting seat and used for inserting and locking or unlocking the SC optical fiber connector, and the mounting hole is formed in the mounting seat and used for penetrating the BOSA and is matched with the BOSA groove to fix the BOSA in the optical module cavity.

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 according to claim 1, further comprising a dust plug, wherein the dust plug is inserted into the hook to protect the BOSA when the optical module is in a non-operating state, and the dust plug has LOGO protrusions on both upper and lower surfaces thereof, and the LOGO protrusions both mark LOGO of company and serve as friction resistance between fingers and the dust plug when the dust plug is pulled out, so that the dust plug can be smoothly inserted.

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