CN215375866U - Shell structure of XFP optical module - Google Patents

Abstract

The application provides a shell structure of XFP optical module includes: the bottom shell and the upper shell are assembled to form a cavity for accommodating the fixed photoelectric part, the upper clamping block and the lower clamping block are assembled to form a complete clamping block for clamping TOSA and ROSA in the photoelectric part, the sliding lock is assembled on the bottom shell in a sliding mode under the pushing of the pull ring and is used for jacking the elastic sheet lock in the metal cage to unlock the optical module, and the sliding lock and the pull ring are reset under the acting force of the reset spring. According to the housing structure of the XFP optical module, the photoelectric part is firmly installed in a cavity formed by the bottom shell and the upper shell, and the TOSA and the ROSA in the photoelectric part are firmly fixed in the bottom shell under the clamping of the upper clamping block and the lower clamping block; the sliding lock enables the optical module to be unlocked smoothly, and the sliding lock and the pull ring reset smoothly under the action of the reset spring after unlocking is finished; the bottom shell, the upper shell, the gland, the sliding lock, the pull ring, the upper clamping block and the lower clamping block can be repeatedly used, and cost is saved.

Description

Shell structure of XFP optical module

Technical Field

The application relates to the technical field of optical communication, in particular to a shell structure of an XFP 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 where optical communication is increasingly intense at present, the demand of communication equipment for reducing the size of the equipment and increasing the interface density is also increasing. In order to meet the requirement, the optical module is also developed towards a small package with high integration level, various high-cost optical modules are more and more, the structure is complex, the requirement on the photoelectric part is high, and heavier economic cost is brought to enterprises and users, so that the optical module with a simple structure and low cost is needed to meet the requirements of part of enterprises and users. Therefore, there is a need for a housing structure of an optical module, which can stably accommodate an optoelectronic component in a cavity of the optical module, and an LC optical fiber Connector (Lucent Connector or Local Connector, Lucent 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 shell structure of the optical module is low in cost.

SUMMERY OF THE UTILITY MODEL

Embodiments of the present invention are directed to provide a housing structure of an Optical module, which has a simple structure and low cost, so that a TOSA (transmissive Optical Sub-Assembly), a ROSA (Receiving Optical Sub-Assembly), a functional circuit board, and the like of the Optical module are stably installed in a structural cavity of the Optical module, and an LC fiber connector is inserted into an Optical fiber port of the Optical module and is connected to the TOSA and the ROSA for signal transmission.

In order to achieve the above object, an embodiment of the present invention provides a housing structure of an XFP (10Gb Small Form-factor plug, 10Gb miniaturized package hot-Pluggable) optical module, including: the bottom shell and the upper shell are assembled to form a cavity for accommodating the fixed photoelectric part, the upper clamping block and the lower clamping block are assembled to form a complete clamping block for clamping TOSA and ROSA in the photoelectric part, the sliding lock is assembled on the bottom shell in a sliding mode under the pushing of the pull ring and is used for jacking the elastic sheet lock in the metal cage to unlock the optical module, and the sliding lock and the pull ring are reset under the acting force of the reset spring.

The bottom shell is symmetrically provided with accommodating spaces at two sides of the shell, an optical fiber port is symmetrically arranged at one end of the shell, a positioning pin is arranged at one end of the outer bottom surface of the shell, a clamping block groove is arranged inside the shell, the accommodating spaces are provided with a locking surface, a spring groove and a part of rotating holes, the locking surface is in locking fit with a spring sheet in a metal cage to lock the optical module in the metal cage, the spring groove accommodates the reset spring, the optical fiber port is provided with a clamping surface, the clamping surface is matched with a locking block in an LC optical fiber connector to lock the LC optical fiber connector in the optical fiber port, and the clamping block groove is used for accommodating the upper clamping block and the lower clamping block;

the upper shell is provided with a stop surface at one end of the shell, the other end of the shell is provided with a clamping and pressing surface, the stop surface is abutted against a stop surface in the metal cage so as to prevent the optical module from being excessively inserted into the metal cage, a golden finger in the functional circuit board is enabled to be in good contact with an electric connection elastic sheet in the metal cage, and the clamping and pressing surface is matched with the clamping block groove to package a complete clamping block formed by the upper clamping block and the lower clamping block in the cavity of the optical module;

the gland is provided with a positioning hole, a partial rotating hole and a screw hole, the positioning hole is matched and positioned with the positioning pin of the bottom shell, and a screw penetrates through the screw hole of the gland and is screwed in the threaded hole in the bottom shell, so that the partial rotating hole of the gland and the partial rotating hole of the bottom shell are assembled to form a complete rotating hole;

the sliding lock is provided with a cross beam and a sliding rod, the sliding rod is symmetrically arranged on two sides of the cross beam and accommodated in the accommodating space, the sliding rod is provided with an unlocking block, a spring block and a stop surface, the unlocking block jacks up a spring sheet lock in a metal cage clamped on the lock surface when sliding forwards in the accommodating space so as to unlock the optical module, the spring block is accommodated in the spring groove and seals the return spring in the spring groove;

the pull ring is provided with a handheld beam and side arms, the side arms are symmetrically arranged on two sides of the handheld beam, the handheld beam is provided with direction grooves, the direction grooves are used for marking that the optical fiber ports are light emitting optical fiber ports or light receiving optical fiber ports, different colors are filled in groove bodies of the direction grooves and used for marking different working wavelengths of the optical module, the side arms are provided with rotating shafts, sliding surfaces and stop surfaces, the rotating shafts are clamped in the complete rotating holes and provide rotating fulcrums of the pull ring, the sliding surfaces are matched with the stop surfaces on the sliding rods, when the pull ring rotates, the sliding surfaces push the stop surfaces to further push the sliding lock to slide forwards, the unlocking blocks push elastic sheet locks in metal cages clamped on the stop surfaces to be separated from the stop surfaces, the optical module is unlocked, and when the pull ring rotates to the stop surfaces to be abutted against the stop surfaces, the pull ring stops rotating, the pull ring cannot be damaged due to excessive rotation, and the pull ring is pulled outwards to drive the optical module to exit from the metal cage.

The shell structure of foretell XFP optical module, the drain pan still is equipped with down locating surface, mount table and marks the arch inside the casing, is equipped with the label groove in the outside bottom surface of casing, the epitheca is equipped with the locating surface in the casing inside, the mount table is equipped with the screw hole, down the locating surface with go up the locating surface cooperation card and press the functional circuit board in the photoelectricity portion, adopt the screw hole that the screw penetrated functional circuit board screwed in screw hole in the mount table is fixed in the cavity of optical module, mark the arch and be used for marking company LOGO and optical module date of production, the label groove is used for pasting the label description of optical module.

The optical module further comprises a protection plug, the optical module is inserted into the optical fiber port to protect the TOSA and the ROSA in a non-working state, the protection plug is provided with a LOGO protrusion and an anti-slip protrusion, the LOGO protrusion is used for marking a LOGO of a company, and the anti-slip protrusion increases the friction force between a finger and the protection plug when the protection plug is pulled out so as to pull out the protection plug smoothly.

According to the housing structure of the XFP optical module, the photoelectric part is firmly installed in a cavity formed by the bottom shell and the upper shell, and the TOSA and the ROSA in the photoelectric part are firmly fixed in the bottom shell under the clamping of the upper clamping block and the lower clamping block; the sliding lock enables the optical module to be unlocked smoothly, and the sliding lock and the pull ring reset smoothly under the action of the reset spring after unlocking is finished; the bottom shell, the upper shell, the gland, the sliding lock, the pull ring, the upper clamping block and the lower clamping block can be repeatedly used, and cost is saved.

Drawings

Fig. 1 is an exploded view of a housing structure of an XFP optical module according to an embodiment of the present disclosure;

fig. 2 is an exploded view of a second embodiment of a housing structure of an XFP optical module according to the present application;

fig. 3 is a first assembly diagram illustrating an embodiment of a housing structure of an XFP optical module according to the present invention;

fig. 4 is a second assembly schematic diagram of an embodiment of a housing structure of an XFP optical module according to the present application;

fig. 5 is a third assembly schematic view (an unlocked state) of an embodiment of a housing structure of an XFP optical module according to the present application;

fig. 6 is a fourth assembly schematic diagram (with an upper cover and a protection plug removed) of the embodiment of the housing structure of the XFP optical module according to the present invention;

fig. 7 is a first schematic bottom view of an embodiment of a housing structure of an XFP optical module according to the present application;

fig. 8 is a second schematic bottom view of an embodiment of a housing structure of an XFP optical module according to the present application;

fig. 9 is a first schematic view of an upper case of an embodiment of a housing structure of an XFP optical module according to the present application;

fig. 10 is a second schematic view of an upper case of an embodiment of a housing structure of an XFP optical module according to the present application;

fig. 11 is a schematic view of a gland of an embodiment of a housing structure of an XFP optical module according to the present application;

fig. 12 is a schematic view of a slide lock according to an embodiment of a housing structure of an XFP optical module of the present application;

fig. 13 is a first pull ring schematic diagram of an embodiment of a housing structure of an XFP optical module according to the present application;

fig. 14 is a second pull ring schematic diagram of an embodiment of a housing structure of an XFP optical module according to the present application;

fig. 15 is a schematic view illustrating a welding assembly of an optoelectronic part according to an embodiment of the XFP optical module of the present application;

fig. 16 is a schematic diagram of a protection plug of an embodiment of a housing structure of an XFP optical module according to the present application;

fig. 17 is a schematic diagram of an LC fiber connector assembled in a mating manner according to an embodiment of a housing structure of an XFP optical module according to the present application;

fig. 18 is a first schematic diagram of a metal cage assembled in a matching manner according to an embodiment of a housing structure of an XFP optical module of the present application;

fig. 19 is a second schematic diagram of a metal cage assembled in a matching manner according to an embodiment of a housing structure of an XFP optical module of the present application;

fig. 20 is a third schematic diagram of a metal cage which is assembled in a matching manner according to an embodiment of a housing structure of an XFP optical module in the present application.

The reference numerals are explained below:

100 bottom shell

110 receiving space 111 locking surface 112 spring groove 113 partial rotating hole 120 optical fiber opening 121 locking surface

130 alignment pin 140 and fixture block slot 150 lower alignment surface 160 mounting block 161 threaded hole 170 marking projection

180 tag slot 191 threaded hole 192 screw hole 193 threaded hole

200 upper case

210 stop surface 220 clamping and pressing surface 230 upper positioning surface 241 screw hole 242 threaded hole

300 pressing cover

310 positioning hole 320 partial rotation hole 330 screw hole

400 sliding lock

410 crossbeam 420 slide bar 421 unlocking block 422 spring block 423 stopping surface

500 pull ring

510 hand-held beam 511 direction slot 520 side arm 521 rotation axis 522 sliding surface 523 stop surface

600 photoelectric part

610 function circuit board 612 golden finger 613 screw hole 620TOSA 630ROSA

710 upper fixture block 720 lower fixture block

810 return spring 820 screw 830 protection plug 831LOGO boss 832 anti-slip boss

910LC fiber connector 911 locking block 912 unlocking block 920 metal cage 921 snap lock 922 stop surface

923 Heat sink fin of holder 925 electrically connected with spring 924

Detailed Description

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

As shown in fig. 1 to 6, screws 820 are inserted into screw holes 192 of bottom case 100 and screwed into screw holes 242 in upper case 200, screws 820 are inserted into screw holes 241 of upper case 200 and screwed into screw holes 191 in bottom case 100, and bottom case 100 and upper case 200 are assembled and fixed together to form an optical module cavity for receiving and fixing photoelectric part 600, upper fixture block 710 and lower fixture block 720.

Referring to fig. 7 and 8, the bottom case 100 is symmetrically provided with receiving spaces 110 at both sides of the case, the shell is symmetrically provided with optical fiber ports 120 at one end, a positioning pin 130 at one end of the outer bottom surface of the shell, the housing is provided with a locking groove 140, the accommodating space 110 is provided with a locking surface 111, a spring groove 112 and a partial rotation hole 113, the locking surface 111 cooperates with a spring plate lock 921 in the metal cage 920 to lock the optical module in the metal cage 920, the spring groove 112 accommodates the return spring 810, the fiber port 120 is provided with a latch surface 121, the latch surface 121 cooperates with a locking block 911 in the LC fiber optic connector 910, latches the LC fiber optic connector 910 in the fiber port 120, and the TOSA620 and the ROSA630 in the optoelectronic part 600 are butted for transmitting or receiving optical signals, the fixture block groove 140 is used for accommodating the upper fixture block 710 and the lower fixture block 720, and the upper fixture block 710 and the lower fixture block 720 are matched to form a complete fixture block for clamping the TOSA620 and the ROSA 630.

As shown in fig. 9 and 10, the upper shell 200 is provided with a stop surface 210 at one end of the shell, and a clamping and pressing surface 220 at the other end of the shell, and the stop surface 210 abuts against a stop surface 922 in the metal cage 920 to prevent the optical module from being excessively inserted into the metal cage 920, so that the gold finger 612 in the functional circuit board 610 is in good contact with the electrical connection elastic sheet 923 in the metal cage 920, and the clamping and pressing surface 220 cooperates with the clamping block groove 140 to encapsulate a complete clamping block formed by the cooperation of the upper clamping block 710 and the lower clamping block 720 in the optical module cavity;

referring to fig. 11, the pressing cover 300 is provided with a positioning hole 310, a partial rotation hole 320 and a screw hole 330, the positioning hole 310 is matched and positioned with the positioning pin 130 of the bottom case 100, and a screw 820 is inserted into the screw hole 330 of the pressing cover 300 and screwed into the screw hole 193 in the bottom case 100, so that the partial rotation hole 320 of the pressing cover 300 is assembled with the partial rotation hole 113 of the bottom case 100 to form a complete rotation hole;

referring to fig. 12, the slide lock 400 includes a cross beam 410 and a slide rod 420, the slide rod 420 is symmetrically disposed on two sides of the cross beam 410 and is accommodated in the accommodating space 110, the slide rod 420 includes an unlocking block 421, a spring block 422 and a stop surface 423, the unlocking block 421 pushes up a spring lock 921 locked on the locking surface 111 when sliding forward in the accommodating space 110, so as to unlock the optical module, the spring block 422 is accommodated in the spring slot 112, and the return spring 810 is blocked in the spring slot 112;

referring to fig. 13 and 14, the pull ring 500 is provided with a hand-held beam 510 and side arms 520, the side arms 520 are symmetrically disposed on two sides of the hand-held beam 510, the hand-held beam 510 is provided with a direction slot 511, the direction slot 511 indicates that the optical fiber port 120 is a light emitting optical fiber port or a light receiving optical fiber port, and different colors are filled in a slot body of the direction slot 511 for indicating different operating wavelengths of the optical module, the side arms 520 are provided with a rotation shaft 521, a sliding surface 522 and a stop surface 523, the rotation shaft 521 is clamped in a complete rotation hole formed by matching a part of the rotation hole 133 with a part of the rotation hole 320 to provide a rotation fulcrum of the pull ring 500, the sliding surface 522 is matched with the stop surface 423 on the slide rod 420, the pull ring 500 rotates under the action of an external force, the sliding surface 522 pushes the stop surface 423 to further push the slide lock 400 to slide forward, the unlocking block 421 pushes the spring lock 921 locked on the locking surface 111 to separate from the locking surface 111, and the optical module is unlocked, when the pull ring 500 rotates until the stop surface 523 abuts against the stop surface 423, the pull ring 500 stops rotating, so that the pull ring 500 is not excessively rotated and damaged.

As shown in fig. 7 to 10, the bottom case 100 further has a lower positioning surface 150, a mounting table 160, and a marking protrusion 170 inside the case, a label groove 180 is disposed on the bottom surface outside the case, the upper positioning surface 230 is disposed inside the case of the upper case 200, the mounting table 160 has a threaded hole 161, the lower positioning surface 150 and the upper positioning surface 230 cooperate with a clamping and pressing functional circuit board 610, a screw 810 is inserted into the threaded hole 613 of the functional circuit board 610 and screwed into the threaded hole 161 in the mounting table 160, the functional circuit board 610 is mounted and fixed in the optical module cavity, the marking protrusion 170 is used for marking LOGO and optical module production date of company LOGO, and the label groove 180 is used for pasting label description of the optical module.

As shown in fig. 17, the optical module further includes a protection plug 830, which is inserted into the optical fiber port 120 when the optical module is in a non-operating state to protect the TOSA620 and the ROSA630, the protection plug 830 is provided with a LOGO protrusion 831 and an anti-slip protrusion 832, the LOGO protrusion 831 is used for marking company LOGO, and the anti-slip protrusion 832 increases the friction force between a finger and the protection plug 830 when the protection plug 830 is pulled out, so as to pull out the protection plug 830 smoothly.

Referring to fig. 7 to 20, a locking and unlocking process of the optical module and the metal cage 920 in the host device is described, the optical module is inserted into the metal cage 920, when the stop surface 210 abuts against the stop surface 922, the optical module stops being inserted into the metal cage 920, at this time, the spring plate lock 921 abuts against the locking surface 111, the optical module is locked in the metal cage 920, and the golden finger 612 of the functional circuit board 610 makes good contact with the electric connection spring plate 923 to perform transmission of an electrical signal; when the optical module needs to be withdrawn from the metal cage 920, the pull ring 500 is pulled, the pull ring 500 rotates and pushes the slide lock 400 to slide forwards, the unlocking block 421 jacks up the spring sheet lock 921 to separate from the locking surface 111, the optical module is unlocked, the pull ring 500 is moved outwards, the optical module is smoothly withdrawn from the metal cage 920, at this moment, the external force applied to the pull ring 500 disappears, the return spring 810 in a compression state releases the elastic force, the spring block 422 is pushed to reset the slide lock 400, and then the pull ring 500 is driven to reset.

Referring to fig. 7 and 18, a process of locking and unlocking the LC fiber connector 910 and the optical module is described, the LC fiber connector 910 is inserted into the optical fiber port 120, the locking piece 911 abuts against the locking surface 121, the LC fiber connector 910 is locked in the optical fiber port 120, and the TOSA620 and the ROSA630 are connected for transmitting and receiving optical signals; when the LC optical fiber connector 910 needs to be pulled out of the optical fiber port 120, the unlocking block 912 is pressed, the unlocking block 912 presses the locking block 911 to be separated from the locking surface 121, the LC optical fiber connector 910 is pulled outwards, and the LC optical fiber connector 910 is smoothly unlocked and withdrawn out of the optical fiber port 120.

As shown in fig. 18, the heat sink 925 is locked to the metal cage 920 by the locking frame 924, so that heat generated by the optical module during operation is dissipated to the outside of the optical module, thereby protecting the optical module from normal operation.

The foregoing is considered as illustrative and exemplary only and is not intended to be limiting, and it is to be understood that the terminology 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 meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims (3)

1. An outer shell structure of an XFP optical module comprises: the device comprises a bottom shell, an upper shell, a gland, a sliding lock, a pull ring, an upper clamping block, a lower clamping block and a return spring, wherein the bottom shell and the upper shell are assembled to form a cavity for accommodating and fixing a photoelectric part, the upper clamping block and the lower clamping block are assembled to form a complete clamping block for clamping TOSA and ROSA in the photoelectric part, the sliding lock is assembled on the bottom shell in a sliding manner under the pushing of the pull ring and is used for jacking up a spring plate lock in a metal cage to unlock the optical module and to reset the optical module and the pull ring under the acting force of the return spring,

the bottom shell is symmetrically provided with accommodating spaces at two sides of the shell, an optical fiber port is symmetrically arranged at one end of the shell, a positioning pin is arranged at one end of the outer bottom surface of the shell, a clamping block groove is arranged inside the shell, the accommodating spaces are provided with a locking surface, a spring groove and a part of rotating holes, the locking surface is in locking fit with a spring sheet in a metal cage to lock the optical module in the metal cage, the spring groove accommodates the reset spring, the optical fiber port is provided with a clamping surface, the clamping surface is matched with a locking block in an LC optical fiber connector to lock the LC optical fiber connector in the optical fiber port, and the clamping block groove is used for accommodating the upper clamping block and the lower clamping block;

the upper shell is provided with a stop surface at one end of the shell, the other end of the shell is provided with a clamping and pressing surface, the stop surface is abutted against a stop surface in the metal cage so as to prevent the optical module from being excessively inserted into the metal cage, a golden finger in the functional circuit board is enabled to be in good contact with an electric connection elastic sheet in the metal cage, and the clamping and pressing surface is matched with the clamping block groove to package a complete clamping block formed by the upper clamping block and the lower clamping block in the cavity of the optical module;

the gland is provided with a positioning hole, a partial rotating hole and a screw hole, the positioning hole is matched and positioned with the positioning pin of the bottom shell, and a screw penetrates through the screw hole of the gland and is screwed in the threaded hole in the bottom shell, so that the partial rotating hole of the gland and the partial rotating hole of the bottom shell are assembled to form a complete rotating hole;

the sliding lock is provided with a cross beam and a sliding rod, the sliding rod is symmetrically arranged on two sides of the cross beam and accommodated in the accommodating space, the sliding rod is provided with an unlocking block, a spring block and a stop surface, the unlocking block jacks up a spring sheet lock in a metal cage clamped on the lock surface when sliding forwards in the accommodating space so as to unlock the optical module, the spring block is accommodated in the spring groove and seals the return spring in the spring groove;

the pull ring is provided with a handheld beam and side arms, the side arms are symmetrically arranged on two sides of the handheld beam, the handheld beam is provided with direction grooves, the direction grooves are used for marking that the optical fiber ports are light emitting optical fiber ports or light receiving optical fiber ports, different colors are filled in groove bodies of the direction grooves and used for marking different working wavelengths of the optical module, the side arms are provided with rotating shafts, sliding surfaces and stop surfaces, the rotating shafts are clamped in the complete rotating holes and provide rotating fulcrums of the pull ring, the sliding surfaces are matched with the stop surfaces on the sliding rods, when the pull ring rotates, the sliding surfaces push the stop surfaces to further push the sliding lock to slide forwards, the unlocking blocks push elastic sheet locks in metal cages clamped on the stop surfaces to be separated from the stop surfaces, the optical module is unlocked, and when the pull ring rotates to the stop surfaces to be abutted against the stop surfaces, the pull ring stops rotating, the pull ring cannot be damaged due to excessive rotation, and the pull ring is pulled outwards to drive the optical module to exit from the metal cage.

2. The structure of an XFP optical module casing of claim 1, wherein said bottom case further has a lower positioning surface, a mounting table and a marking protrusion inside the case, a label groove is provided on the bottom surface outside the case, said upper case has an upper positioning surface inside the case, said mounting table has a threaded hole, said lower positioning surface and said upper positioning surface cooperate to clamp a functional circuit board in the photoelectric portion, a screw hole penetrating the functional circuit board with a screw is screwed into the threaded hole in said mounting table to fix the functional circuit board in the cavity of said optical module, said marking protrusion is used to mark company LOGO and optical module production date, said label groove is used to paste label description of the optical module.

3. The housing structure of an XFP optical module of claim 1, wherein said optical module further comprises a protection plug, said protection plug is inserted into said optical fiber port to protect TOSA and ROSA when said optical module is in a non-operating state, said protection plug is provided with a LOGO protrusion and an anti-slip protrusion, said LOGO protrusion is used to mark company LOGO, said anti-slip protrusion increases friction between fingers and said protection plug when said protection plug is pulled out, so as to pull out said protection plug smoothly.

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