CN114779414B

CN114779414B - Optical module

Info

Publication number: CN114779414B
Application number: CN202210524765.XA
Authority: CN
Inventors: 葛君; 陈金磊; 夏争辉
Original assignee: Hisense Broadband Multimedia Technology Co Ltd
Current assignee: Hisense Broadband Multimedia Technology Co Ltd
Priority date: 2022-05-13
Filing date: 2022-05-13
Publication date: 2023-05-05
Anticipated expiration: 2042-05-13
Also published as: CN114779414A

Abstract

The optical module comprises a circuit board, an optical assembly electrically connected with the circuit board and an optical fiber adapter connected with the optical assembly through an optical fiber belt, wherein the optical fiber adapter comprises a claw, an optical fiber plug, a contact pin and a fixing piece, a penetrating light through hole is formed in the claw, and a reverse insertion boss is arranged on the inner wall of one end of the light through hole; one end of the optical fiber plug is inserted into the other end of the light through hole, and an optical fiber belt is fixed at the other end; one end of the fixing piece is contacted with the end face of the optical fiber plug, and the other end of the fixing piece is clamped and fixed with the clamping jaw; the fixing piece is provided with a first through hole and a second through hole which are communicated with each other; the contact pin comprises an exposure part, a connecting part and an insertion part, wherein the insertion part is smaller than the first through hole and larger than the diameter of the second through hole, and the insertion part is inserted into the optical fiber plug; the connecting part is smaller than the diameter of the second through hole, and is clamped and fixed in the second through hole. The first through hole of mounting, second through this application have realized the dismouting of contact pin and fiber plug, are convenient for produce line maintenance and grind the light mouth of damage.

Description

Optical module

Technical Field

The application relates to the technical field of optical communication, in particular to an optical module.

Background

With the development of new business and application modes such as cloud computing, mobile internet, video and the like, the development and progress of optical communication technology become more and more important. In the optical communication technology, the optical module is a tool for realizing the mutual conversion of optical signals, is one of key devices in optical communication equipment, and the transmission rate of the optical module is continuously improved along with the development of the optical communication technology.

Light emitted by a laser in the optical module needs to be coupled into an optical fiber, so that the optical signal is transmitted by the optical fiber, and the optical coupling is a technical problem which is necessarily needed to be solved in the production and design process of the optical module. In the optical module, the optical fiber plug is a commonly used optical coupling element, and various optical fiber plugs such as MPO connection, MT connector and the like are used, when the external optical fiber is inserted into the claw of the optical fiber adapter, the MT plug is disposed in the claw, and the external optical fiber insertion claw is connected with the MT plug, so as to realize optical fiber coupling.

However, when the claw cooperates with MT, more damage to the optical port can occur in production, because the contact pin of the MT plug is fixed in the plug through dispensing, the MT plug is fixed in the claw through dispensing, and the optical port damaged by grinding is not convenient for the maintenance of the production line.

Disclosure of Invention

The embodiment of the application provides an optical module to optimize the assembly of jack catch and MT plug, the light mouth of the line maintenance grinding damage of being convenient for.

The application provides an optical module, comprising:

a circuit board;

an optical component electrically connected with the circuit board and used for transmitting and/or receiving optical signals;

an optical fiber adapter connected to the optical module by an optical fiber ribbon;

wherein the fiber optic adapter comprises:

the claw is provided with a penetrating light-passing hole, and the inner wall at one end of the light-passing hole is provided with a reverse insertion boss;

the optical fiber plug is fixed with the optical fiber ribbon at one end and inserted into the other end of the light through hole at the other end; the pin hole is arranged on the pin hole;

one end of the fixing piece is contacted with the end face of the optical fiber plug, and the other end of the fixing piece is clamped and fixed with the clamping jaw; the device comprises a first through hole and a second through hole which are communicated, wherein the first through hole is larger than the second through hole in diameter;

the contact pin comprises an exposing part, a connecting part and an inserting part, wherein the exposing part is connected with the inserting part through the connecting part; the diameter size of the insertion part is smaller than that of the first through hole and larger than that of the second through hole, and the insertion part is inserted into the pin hole; the diameter size of the connecting part is smaller than that of the second through hole, and the connecting part is clamped in the second through hole.

As can be seen from the foregoing embodiments, the optical module provided in the embodiments of the present application includes a circuit board, an optical assembly and an optical fiber adapter, where the optical assembly is electrically connected to the circuit board, and is configured to transmit and/or receive an optical signal; the optical fiber adapter is connected with the optical component through the optical fiber ribbon so as to transmit the optical signal emitted by the optical component and transmit the external light beam to the optical component. The optical fiber adapter comprises a claw, an optical fiber plug, a contact pin and a fixing piece, wherein a penetrating light through hole is formed in the claw, and a reverse insertion boss is arranged on the inner wall of one end of the light through hole, so that an operator can prevent the external optical fiber plug from being inserted into the claw after turning over the plug of the external optical fiber, and the reverse insertion boss can avoid reverse insertion of the external optical fiber plug; one end of the optical fiber plug is fixed with an optical fiber belt, and the other end of the optical fiber plug is inserted into the other end of the light through hole, so that the optical fiber plug is connected with an external optical fiber plug through a claw to realize the optical connection of the optical fiber belt and the external optical fiber, and the optical assembly is connected with the external optical fiber through an optical fiber adapter; the optical fiber plug is provided with a through pin hole; one end of the fixing piece is contacted with the end face of the optical fiber plug, and the other end of the fixing piece is clamped and fixed with the clamping jaw, so that the optical fiber plug is fixed in the clamping jaw through the fixing piece; the fixing piece is provided with a first through hole and a second through hole which are communicated, and the diameter size of the first through hole is larger than that of the second through hole; the contact pin comprises an exposing part, a connecting part and an inserting part, wherein the exposing part is connected with the inserting part through the connecting part, the diameter of the inserting part is smaller than that of the first through hole and larger than that of the second through hole, and the inserting part is inserted into the contact pin hole of the optical fiber plug; the diameter of the connecting part is smaller than that of the second through hole, and the connecting part is clamped and fixed in the second through hole; thus, the contact pin is movably inserted into the optical fiber plug through the first through hole, and when the contact pin is inserted into the optical fiber plug through the first through hole, the contact pin can move in the first through hole and the optical fiber plug so as to facilitate the insertion or the extraction of the contact pin; the contact pin passes through the second through hole and is fixed in the optical fiber plug, namely, after the contact pin is inserted into the optical fiber plug through the first jack, the fixing piece is moved, so that the contact pin is clamped and fixed in the second through hole, and the contact pin is fixedly connected with the optical fiber plug through the second through hole instead of the traditional glue; when the optical port of the optical fiber adapter is damaged, the optical fiber plug is detached from the claw, then the contact pin is moved to the first through hole, and the contact pin is pulled out of the optical fiber plug, so that the optical port side can be freely ground, and the contact pin is installed back into the optical fiber plug through the first through hole and the second through hole after grinding; the external optical fiber is inserted into the other end of the light-passing hole and is positioned and connected with the optical fiber plug through the contact pin. According to the optical fiber plug clamping jaw, the optical fiber plug is clamped and fixed in the clamping jaw through the optimized clamping jaw design, the contact pin is assembled and disassembled through the first through hole and the second through hole of the fixing piece, the optical port damaged by maintenance and grinding of the production line is facilitated, and the scrapping loss of the optical port can be reduced.

Drawings

In order to more clearly illustrate the technical solutions of the present disclosure, the drawings that need to be used in some embodiments of the present disclosure will be briefly described below, and it is apparent that the drawings in the following description are only drawings of some embodiments of the present disclosure, and other drawings may be obtained according to these drawings to those of ordinary skill in the art. Furthermore, the drawings in the following description may be regarded as schematic diagrams, not limiting the actual size of the products, the actual flow of the methods, the actual timing of the signals, etc. according to the embodiments of the present disclosure.

Fig. 1 is a connection diagram of an optical communication system according to some embodiments;

fig. 2 is a block diagram of an optical network terminal according to some embodiments;

FIG. 3 is a connection diagram of a data center switch according to some embodiments;

fig. 4 is a block diagram of an optical module according to some embodiments;

fig. 5 is an exploded view of a light module according to some embodiments;

fig. 6 is an assembly schematic diagram of a circuit board, an optical assembly, an optical fiber adapter and an optical fiber plug in an optical module according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of an optical fiber adapter in an optical module according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a claw in an optical module according to an embodiment of the present application;

fig. 9 is a cross-sectional view of a claw in an optical module according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of an external optical fiber in an optical module according to an embodiment of the present application;

FIG. 11 is an exploded cross-sectional view of an external optical fiber and an optical fiber adapter in an optical module according to an embodiment of the present application;

FIG. 12 is an exploded view of an optical fiber adapter in an optical module according to an embodiment of the present disclosure;

fig. 13 is a schematic view of another angle structure of a claw in an optical module according to an embodiment of the present application;

fig. 14 is a schematic structural diagram of an optical fiber plug in an optical module according to an embodiment of the present application;

fig. 15 is a schematic structural diagram of a fixing member in an optical module according to an embodiment of the present application;

fig. 16 is a schematic structural diagram of a pin in an optical module according to an embodiment of the present application;

fig. 17 is an assembly schematic diagram of a claw, an optical fiber plug, a fixing member and a pin in an optical module according to an embodiment of the present application;

FIG. 18 is a cross-sectional view of a fiber optic adapter in an optical module according to an embodiment of the present disclosure;

fig. 19 is another angular cross-sectional view of a fiber optic adapter in an optical module according to an embodiment of the present application.

Detailed Description

The following description of the embodiments of the present disclosure will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present disclosure. All other embodiments obtained by one of ordinary skill in the art based on the embodiments provided by the present disclosure are within the scope of the present disclosure.

In the field of optical fiber communication technology, signals transmitted by information transmission devices such as optical fibers or optical waveguides are optical signals, and signals that can be identified and processed by information processing devices such as computers are electrical signals, so that optical modules are required to be used to implement the mutual conversion between the optical signals and the electrical signals.

Fig. 1 is a connection diagram of an optical communication system according to some embodiments. As shown in fig. 1, the remote server 1000 establishes a bidirectional optical communication system with the local information processing apparatus 2000 through the optical fiber 101, the optical module 200, the optical network terminal 100, and the network cable 103.

One end of the optical fiber 101 is connected to the remote server 1000, and the other end is connected to the optical network terminal 100 through the optical module 200. One end of the network cable 103 is connected to the local information processing device 2000, and the other end is connected to the optical network terminal 100.

The connection between the local information processing device 2000 and the remote server 1000 is completed by an optical fiber 101 and a network cable 103; and the connection between the optical fiber 101 and the network cable 103 is made by the optical module 200 and the optical network terminal 100.

In the optical module 200, the optical port is configured to be connected to the optical fiber 101, so that the optical module 200 establishes a bidirectional optical signal connection with the optical fiber 101; the electrical port is configured to be accessed into the optical network terminal 100 such that the optical module 200 establishes a bi-directional electrical signal connection with the optical network terminal 100. The optical module 200 performs mutual conversion between optical signals and electrical signals, so that a connection is established between the optical fiber 101 and the optical network terminal 100.

An optical module interface 102 and a network cable interface 104 are provided on the optical network terminal 100. The optical module interface 102 is configured to access the optical module 200, so that the optical network terminal 100 and the optical module 200 establish a bidirectional electrical signal connection; the network cable interface 104 is configured to access the network cable 103 such that the optical network terminal 100 establishes a bi-directional electrical signal connection with the network cable 103. A connection is established between the optical module 200 and the network cable 103 through the optical network terminal 100. The upper computer of the optical module 200 may include an optical line terminal (Optical Line Terminal, OLT) or the like in addition to the optical network terminal 100.

Fig. 2 is a block diagram of an optical network terminal according to some embodiments, and as shown in fig. 2, the optical network terminal 100 further includes a PCB circuit board 105 disposed in the housing, a cage 106 disposed on a surface of the PCB circuit board 105, and an electrical connector disposed inside the cage 106. The electrical connector is configured to access an electrical port of the optical module 200; the heat sink 107 has a convex portion such as a fin that increases the heat dissipation area.

The optical module 200 is inserted into the cage 106 of the optical network terminal 100, the optical module 200 is fixed by the cage 106, and heat generated by the optical module 200 is transferred to the cage 106 and then diffused through the heat sink 107. After the optical module 200 is inserted into the cage 106, the electrical port of the optical module 200 is connected with an electrical connector inside the cage 106, so that the optical module 200 establishes a bi-directional electrical signal connection with the optical network terminal 100.

Fig. 3 is a connection diagram of a data center switch, according to some embodiments. As shown in FIG. 3, the H3C 100G platform based S12500X-AF switch may also be used as the data center core (Spine node), and the access layer may use the S9820 switch as the 100G TOR switch (Leaf node), providing a high density 100G/40G/25G/10G server access scheme.

The S9820 switch 2000 supports high density 400GE/100GE/40GE ports, can be used as convergence equipment in a three-layer architecture of a data center, is connected to the TOR switch, is connected to the S12500 data center 1000 on a 400GE/100GE link in the uplink, and is inserted into the S12500 data center 1000 to provide 25G/10G server access, thereby constructing a high-reliability and highly redundant ultra-large-scale data center network.

Fig. 4 is a block diagram of an optical module according to some embodiments, and fig. 5 is an exploded view of an optical module according to some embodiments. As shown in fig. 4 and 5, the optical module 200 includes a housing, a circuit board 300 disposed in the housing, and an optical component disposed on the circuit board 300;

the housing includes an upper housing 201 and a lower housing 202, the upper housing 201 being capped on the lower housing 202 to form the above-described housing having two

openings

204 and 205; the outer contour of the housing generally presents a square shape.

The direction of the connection line of the two

openings

204 and 205 may be identical to the length direction of the optical module 200 or not identical to the length direction of the optical module 200. The opening 204 is an electrical port, and the golden finger of the circuit board 300 extends out of the electrical port 204 and is inserted into the upper computer; the opening 205 is an optical port configured to access the external optical fiber 101 such that the optical fiber 101 is connected to the inside of the optical module 200.

By adopting the assembly mode of combining the upper shell 201 and the lower shell 202, devices such as the circuit board 300 and the like are conveniently installed in the shells, and the upper shell 201 and the lower shell 202 can form packaging protection for the devices. In some embodiments, the upper housing 201 and the lower housing 202 are generally made of metal materials, which is beneficial to electromagnetic shielding and heat dissipation.

In some embodiments, the light module 200 further comprises an unlocking member 203 located at an outer wall of its housing. When the optical module 200 is inserted into the cage of the upper computer, the optical module 200 is clamped in the cage of the upper computer by the clamping component of the unlocking component 203; when the unlocking member 203 is pulled, the engaging member of the unlocking member 203 moves along with the unlocking member, so as to change the connection relationship between the engaging member and the host computer, and release the engagement between the optical module 200 and the host computer.

The circuit board 300 includes circuit traces, electronic components, and chips that are connected together in a circuit design by the circuit traces.

The circuit board 300 is generally a hard circuit board, and the hard circuit board can also realize a bearing function due to the relatively hard material, for example, the hard circuit board can stably bear chips; the hard circuit board can also be inserted into an electrical connector in the upper computer cage.

The circuit board 300 further includes a gold finger formed on an end surface thereof, the gold finger being composed of a plurality of pins independent of each other. The circuit board 300 is inserted into the cage 106 and is conductively connected to the electrical connectors within the cage 106 by the gold fingers. The golden finger is configured to establish electrical connection with the upper computer to achieve power supply, grounding, I2C signal transmission, data signal transmission and the like. Of course, a flexible circuit board may also be used in conjunction with circuit board 300 in some optical modules.

The optical components may include a first optical component 400 and a second optical component 500, and the first optical component 400 and the second optical component 500 may have both transmitting and receiving functions, so as to implement two sets of light transmission and two sets of light reception. The optical component may also include an optical transmitting component and an optical receiving component, that is, the light beam emitted by the optical transmitting component is transmitted to the external optical fiber through the internal optical fiber ribbon and the optical fiber adapter 600, so as to realize the emission of a set of light; the received light beam transmitted by the external optical fiber is transmitted to the light receiving assembly via the optical fiber adapter 600 and the internal optical fiber to achieve a set of light reception. The light assembly may also include a first light emitting assembly and a second light emitting assembly, that is, the first light emitting assembly and the second light emitting assembly emit light beams respectively, so as to achieve the emission of two groups of light. The optical component may also include a first optical receiving component and a second optical receiving component, that is, the first optical receiving component and the second optical receiving component respectively receive the external light beams, so as to implement the reception of two groups of light.

In the embodiment of the present application, the first optical module 400 and the second optical module 500 are both optical transceiver modules.

Fig. 6 is an assembly schematic diagram of a circuit board, an optical assembly, an optical fiber adapter and an optical fiber plug in an optical module according to an embodiment of the present application. As shown in fig. 6, the optical signals emitted from the first optical assembly 400 and the second optical assembly 500 are respectively transmitted to the optical fiber adapter 600 through the optical fiber ribbons, and the optical signals are coupled to the external optical fiber 700 through the optical fiber adapter 600 to achieve light emission; the optical signals transmitted from the external optical fiber 700 are transmitted to the optical fiber adapter 600, and the optical fiber adapter 600 transmits the received optical signals to the first optical module 400 and the second optical module 500 through the optical fiber ribbons, respectively, so as to implement optical reception.

In some embodiments, the end of the external optical fiber 700 inserted into the optical fiber adapter 600 is provided with an optical fiber plug, which is inserted into the optical fiber adapter 600 in use, so that the optical signal transmitted by the optical fiber ribbon is coupled into the external optical fiber through the optical fiber adapter 600, and the received optical signal transmitted by the external optical fiber is transmitted to the first optical component 400 and the second optical component 500 through the optical fiber adapter 600.

Fig. 7 is a schematic structural diagram of an optical fiber adapter in an optical module according to an embodiment of the present application. As shown in fig. 7, the optical fiber adapter 600 includes a claw 610 and an optical fiber plug 620, wherein a through hole is formed in the claw 610, the optical fiber plug 620 is inserted into one end of the through hole, and the optical fiber plug 620 is connected with the first optical assembly 400 and the second optical assembly 500 through optical fiber ribbons; the external optical fiber 700 is inserted into the other end of the light passing hole, and the external optical fiber 700 is coupled with the optical fiber plug 620 to realize the coupling connection of the optical fiber adapter 600 and the external optical fiber.

Fig. 8 is a schematic structural diagram of a claw in an optical module provided in an embodiment of the present application, and fig. 9 is a cross-sectional view of a claw in an optical module provided in an embodiment of the present application. As shown in fig. 8 and 9, the claw 610 includes a claw body, the claw body is provided with a through hole 6130, grooves are provided on two opposite sides of the claw body, one end of the groove is provided with an opening, a first elastic buckle 6160 is provided in the groove, one end of the first elastic buckle 6160 is fixedly connected with the claw body, so that the first elastic buckle 6160 can be opened and closed with the fixed end, and the first elastic buckle 6160 is outwards supported or inwards clamped.

In some embodiments, the claw body includes a first body 6102, a second body 6101, and opposite side 6103, where the first body 6102 and the second body 6101 are disposed opposite to each other, two ends of the side 6103 are connected to the first body 6102 and the second body 6101, a slot 6104 is disposed on the side 6103, one end of the slot 6104 facing the external optical fiber 700 is provided with an opening, a first elastic buckle 6160 is disposed in the slot 6104, and one end of the first elastic buckle 6160 is fixedly connected to the side 6103, so that the first elastic buckle 6160 can rotate in the slot 6104 by a preset angle, thereby performing a clamping connection on the external optical fiber 700 inserted into the claw 610.

In some embodiments, an inner sidewall of the first body 6102 facing the light passing hole 6130 is provided with a mounting groove 6110, and the mounting groove 6110 may be used to guide the external optical fiber plug to be inserted into the light passing hole 6130, i.e., when the external optical fiber 700 is inserted into the light passing hole 6130 of the claw 610, the external optical fiber 700 may be inserted into the claw 610 along the mounting groove 6110, and the external optical fiber 700 is clamped by the claw 610, so as to achieve a clamped connection between the external optical fiber 700 and the claw 610.

Specifically, when the external optical fiber 700 is detached from the optical fiber adapter 600, the first elastic catch 6160 of the jaw 610 may be broken off, so that the external optical fiber 700 moves leftward along the mounting groove 6110 to separate the external optical fiber 700 from the jaw 610.

However, the jaw 610 is an elastic member, if the operator inserts the external optical fiber 700 into the jaw 610 in the opposite direction (rotates 360 degrees), the external optical fiber 700 can also open the jaw 610 and insert the external optical fiber into the jaw 610 successfully, so that the external optical fiber 700 and the optical fiber plug 620 in the jaw 610 cannot be coupled and connected, and the optical coupling effect is affected.

In some embodiments, to avoid the external optical fiber 700 from being reversely inserted into the claw 610, a reverse insertion boss 6120 is further disposed on an inner side wall of the second body 6101 facing the light transmission hole 6130, where the reverse insertion boss 6120 is disposed opposite to the mounting groove 6110 in a staggered manner, that is, the mounting groove 6110 is disposed on the first body 6102, the reverse insertion boss 6120 is disposed on the second body 6101, and the mounting groove 6110 is disposed opposite to the reverse insertion boss 6120.

In some embodiments, the mounting groove 6110 and the counter-insertion boss 6120 are arranged in a central symmetry manner, that is, when the first body 6102 of the claw 610 is turned down by 360 degrees, the turned mounting groove 6110 and the counter-insertion boss 6120 on the second body 6101 are located at the same position of the claw body. Thus, when the operator turns the external optical fiber 700 by 360 degrees, the turned external optical fiber 700 is inserted into the claw 610, the external optical fiber 700 collides with the reverse insertion boss 6120 in the claw 610, the reverse insertion boss 6120 blocks the external optical fiber 700 from being inserted inwards, so that the external optical fiber 700 cannot be inserted into the claw 610, the operator is warned of reverse insertion, and the operator is warned of correct insertion of the external optical fiber 700.

In some embodiments, the mounting groove 6110 may also be disposed on the second body 6101 of the claw 610, and the counter-insertion boss 6120 is disposed on the first body 6102 of the claw 610, where the counter-insertion boss on the first body 6102 is disposed in central symmetry with the mounting groove on the second body 6101.

Fig. 10 is a schematic structural diagram of an external optical fiber in an optical module provided in an embodiment of the present application, and fig. 11 is an exploded cross-sectional view of the external optical fiber and an optical fiber adapter in the optical module provided in the embodiment of the present application. As shown in fig. 10 and 11, one end of the external optical fiber 700 inserted into the jaw 610 is provided with a plug, on which a protrusion 710 is provided, the protrusion 710 being provided on an upper side of the plug, and the protrusion 710 being provided corresponding to the mounting groove 6110 of the jaw 610. In this way, when the external optical fiber 700 is inserted into the jaw 610, the protrusion 710 on the external optical fiber 700 is inserted into the mounting groove 6110, and the protrusion 710 moves left and right in the mounting groove 6110, so that the external optical fiber 700 is correctly inserted into the jaw 610.

In some embodiments, when the operator turns the external optical fiber 700 downward by 360 degrees, the protrusion 710 on the top surface of the external optical fiber 700 turns downward, the turned external optical fiber 700 is inserted into the claw 610, the protrusion 710 on the external optical fiber 700 collides with the counter-insertion boss 6120 on the second body 6101, and the counter-insertion boss 6120 blocks the turned protrusion 710 from continuing to be inserted inward, so that the external optical fiber 700 cannot be inserted into the claw 610, and the operator is warned of the counter-insertion.

In some embodiments, a limiting surface 6170 is disposed in the light-passing hole 6130 of the claw 610, and the diameter of the light-passing hole passing through the limiting surface 6170 is smaller than the diameter of the light-passing hole between the first body 6102 and the second body 6101, so that when the external optical fiber 700 is inserted into the light-passing hole 6130 of the claw 610, the plug end surface of the external optical fiber 700 abuts against the limiting surface 6170 to limit and fix the external optical fiber 700.

The external optical fiber 700 is inserted into the claw 610, and after the plug end surface of the external optical fiber 700 abuts against the limiting surface 6170, the external optical fiber 700 is clamped and fixedly connected through the first elastic buckle 6160. Specifically, a fixing groove may be provided on the plug side of the external optical fiber 700, and after the external optical fiber 700 is inserted into the jaw 610, the first elastic buckle 6160 is snapped into the fixing groove, so that the external optical fiber 700 is fixedly connected with the jaw 610 through the first elastic buckle 6160.

When the external optical fiber 700 needs to be disassembled, the first elastic buckle 6160 can be broken off, the first elastic buckle 6160 is separated from the fixing groove of the external optical fiber 700, and then the plug of the external optical fiber 700 is moved outwards, so that the separation of the external optical fiber 700 and the claw 610 is realized.

Fig. 12 is an exploded schematic view of an optical fiber adapter in an optical module according to an embodiment of the present application. As shown in fig. 12, to facilitate insertion of the optical fiber plug 620 into the claw 610 and positioning connection of the external optical fiber 700 with the optical fiber plug 620, the optical fiber adapter 600 further includes a fixing member 630 and a pin 640, one end of the fixing member 630 contacts with an end surface of the optical fiber plug 620, and the other end of the fixing member 630 is fastened to the claw 610, so that the optical fiber plug 620 is fastened in the claw 610 by the fixing member 630.

Fig. 13 is a schematic structural diagram of a claw in an optical module according to an embodiment of the present application. As shown in fig. 13, a second elastic buckle 6140 is disposed at an end of the claw 610 facing away from the external optical fiber 700, one end of the second elastic buckle 6140 is fixedly connected with the claw body, and the second elastic buckle 6140 is located at the same side as the first body 6102 and the second body 6101, that is, an opposite second elastic buckle 6140 is disposed at an end of the claw 610, and a light passing hole 6130 passes through a gap between the two second elastic buckles 6140.

The second elastic buckle 6140 can rotate within a preset angle range, so that the second elastic buckle 6140 can be clamped inwards to fix the optical fiber plug 620, and can be outwards broken to detach the optical fiber plug 620.

In some embodiments, the end of the claw 610 facing away from the external optical fiber 700 is further provided with a first side 6150, and the light-passing hole 6130 passes through the first side 6150, so that the optical fiber plug 620 can be inserted into the claw 610 through the light-passing hole 6130, and the optical fiber plug 620 is limited by the first side 6150.

Fig. 14 is a schematic structural diagram of an optical fiber plug in an optical module according to an embodiment of the present application. As shown in fig. 14, the optical fiber plug 620 includes a ferrule 6210 and a fixing portion 6220, wherein an outer side wall of the fixing portion 6220 protrudes from an outer side wall of the ferrule 6210, that is, a width dimension of the fixing portion 6220 in a vertical direction and a length dimension of the fixing portion in a front-rear direction are larger than a width dimension of the ferrule 6210 in the vertical direction and a length dimension of the fixing portion in the front-rear direction.

When the optical fiber plug 620 is inserted into the light through hole 6130 of the claw 610, the ferrule 6210 extends into the light through hole 6130, and the first side 6150 abuts against the second side 6260, so that the optical fiber plug 620 is limited by the first side 6150, and the fixing portion 6220 is located outside the light through hole 6130.

In some embodiments, the second elastic buckle 6140 of the claw 610 protrudes from the first side 6150, and the ferrule 6210 of the optical fiber plug 620 is inserted into the light transmission hole 6130 of the claw 610, and the fixing portion 6220 of the optical fiber plug 620 is located in the gap between the second elastic buckle 6140.

The securing portion 6220 further includes a third side 6230 facing away from the ferrule 6210, the third side 6230 being in contact with an end face of the securing member 630. Specifically, the ferrule 6210 of the optical fiber plug 620 is inserted into the light passing hole 6130 of the claw 610, the second side surface 6260 of the optical fiber plug 620 is abutted against the first side surface 6150 of the claw 610, then the fixing member 630 is abutted against the third side surface 6230 of the optical fiber plug 620, and then the second elastic buckle 6140 is abutted against the end surface of the fixing member 630, so that a force is applied to the fixing member 630 and the optical fiber plug 620, and the optical fiber plug 620 and the fixing member 630 are clamped and fixed in the claw 610.

In some embodiments, the fiber optic plug 620 further includes a fifth side 6270 facing the external optical fiber 700, the fifth side 6270 being disposed opposite the third side 6230. The third side surface 6230 is provided with a fiber receptacle 6240, and the fifth side surface 6270 is provided with a plurality of fiber holes arranged side by side, the plurality of fiber holes being in communication with the fiber receptacle 6240, such that the fiber ribbon is inserted into the fiber plug 620 through the fiber receptacle 6240 and each fiber in the fiber ribbon is disposed in one fiber hole.

When the optical fiber is placed in the optical fiber hole, the light emitting surface of the optical fiber can be located inside the optical fiber plug 620, so that when the optical fiber plug 620 is connected with the plug of the external optical fiber 700 in the claw 610, the optical signal transmitted by the optical fiber is coupled to the external optical fiber 700 through the optical fiber hole; the light emitting surface of the optical fiber may also protrude from the optical fiber plug 620, that is, the optical fiber protrudes from the fifth side surface 6270 through the optical fiber hole, so that when the optical fiber plug 620 is connected with the plug of the external optical fiber 700 in the claw 610, the optical signal transmitted by the optical fiber is directly coupled to the external optical fiber 700.

Fig. 15 is a schematic structural view of a fixing member in an optical module provided in an embodiment of the present application, and fig. 16 is a schematic structural view of a pin in an optical module provided in an embodiment of the present application. As shown in fig. 15 and 16, the fixing element 630 includes a fourth side 6310 and a sixth side, the fourth side 6310 is a side facing away from the optical fiber plug 620, the sixth side is opposite to the fourth side 6310, and the sixth side contacts the third side 6230 of the optical fiber plug 620, and the second elastic buckle 6140 abuts against the fourth side 6310 of the fixing element 630 to force the fixing claw 610, the optical fiber plug 620 and the fixing element 630.

The fixing member 630 is provided with a through avoidance hole 6320, and the avoidance hole 6320 is opposite to the optical fiber jack 6240 on the third side surface 6230, so that the optical fiber ribbons connecting the first optical assembly 400 and the second optical assembly 500 penetrate through the avoidance hole 6320 and are inserted into the optical fiber jack 6240, so as to realize optical fiber connection between the first optical assembly 400 and the second optical assembly 500 and the optical fiber adapter 600.

In some embodiments, to facilitate passage of the fiber optic ribbon through the relief hole 6320, one side of the mounting member 630 may be provided with an opening that communicates with the relief hole 6320 such that the fiber optic ribbon may be inserted into the relief hole 6320 through the upper opening.

The third side surface 6230 of the optical fiber plug 620 is further provided with a pin hole 6250, and the pin hole 6250 penetrates the fixing portion 6220 and the ferrule 6210 of the optical fiber plug 620; the fixing member 630 is provided with a first through hole 6330 and a second through hole 6340, the first through hole 6330 is communicated with the second through hole 6340, and the diameter size of the first through hole 6330 is larger than that of the second through hole 6340.

The pin 640 includes an exposing portion 6410, a connecting portion 6420 and an inserting portion 6430, the exposing portion 6410 is connected with the inserting portion 6430 through the connecting portion 6420, and a diameter size of the exposing portion 6410 is greater than or equal to a diameter size of the inserting portion 6430, and a diameter size of the inserting portion 6430 is greater than a diameter size of the connecting portion 6420.

The diameter size of the first through hole 6330 is greater than or equal to the diameter size of the insertion portion 6430, the diameter size of the second through hole 6340 is smaller than the diameter size of the insertion portion 6430, and the diameter size of the second through hole 6340 is greater than or equal to the diameter size of the connection portion 6420.

In some embodiments, to facilitate the access to the pins 640, the diameter of the exposed portion 6410 may be larger than the diameter of the first through hole 6330. Thus, when the pin 640 is inserted into the pin hole 6250 of the optical fiber plug 620 through the first through hole 6330, the exposing portion 6410 is exposed outside the fixing member 630, and the inserting portion 6430 is inserted into the pin hole 6250 through the first through hole 6330, and at this time, the pin 640 can move left and right in the pin hole 6250 and the first through hole 6330; then, the fixing member 630 is moved, and the connecting portion 6420 is clamped into the second through hole 6340, and at this time, the pin 640 cannot move left and right in the second through hole 6340, so that the pin 640 is clamped to the fixing member 630.

In some embodiments, the optical fiber plug 620 may be an MT male, and the plug of the external optical fiber 700 is a corresponding MT female, that is, after the pin 640 is fixed to the optical fiber plug 620, an end of the pin 640 facing away from the exposing portion 6410 protrudes out of the optical fiber plug 620, so that the external optical fiber 700 is inserted into the claw 610, and the protruding pin 640 is inserted into the insertion hole on the end face of the external optical fiber 700, so as to realize positioning connection between the optical fiber plug 620 and the external optical fiber 700.

Fig. 17 is an assembly schematic diagram of a claw, an optical fiber plug, a fixing member and a pin in an optical module provided in an embodiment of the present application, fig. 18 is a cross-sectional view of an optical fiber adapter in an optical module provided in an embodiment of the present application, and fig. 19 is another angular cross-sectional view of an optical fiber adapter in an optical module provided in an embodiment of the present application. As shown in fig. 17, 18, and 19, when assembling the optical fiber adapter 600, the sixth side of the fixing member 630 is first abutted against the third side 6230 of the optical fiber plug 620, and then the pin 640 is inserted into the pin hole 6250 of the optical fiber plug 620 through the first through hole 6330 until the exposed portion 6410 abuts against the connection surface of the connection portion 6420 and the fourth side 6310 of the fixing member 630; then, the fixing member 630 is moved, so that the connecting portion 6420 of the pin 640 is clamped into the second through hole 6340, and the pin 640 is fixedly connected with the optical fiber plug 620 through the fixing member 630 without dispensing glue; the assembled optical fiber plug 620, the fixing member 630 and the pin 640 are then inserted into the light passing hole 6130 of the claw 610, such that the second side surface 6260 of the optical fiber plug 620 abuts against the first side surface 6150 of the claw 610, and the second elastic buckle 6140 abuts against the fourth side surface 6310 of the fixing member 630, thereby fixing the optical fiber plug 620, the fixing member 630 in the claw 610.

When the optical port of the optical fiber adapter 600 is damaged and the optical port needs to be polished, the second elastic buckle 6140 is firstly broken, the optical fiber plug 620, the fixing member 630 and the contact pin 640 are detached from the claw 610, then the fixing member 630 is moved, the connecting portion 6420 of the contact pin 640 is moved into the first through hole 6330, and the contact pin 640 is pulled out from the first through hole 6330 and the contact pin hole 6250. After the ferrule 640 is pulled out of the optical fiber plug 620, the optical fiber inlet side is freely polished, and the optical fiber adapter 600 is assembled in sequence after polishing.

The optical module provided by the embodiment of the application comprises a circuit board, an optical assembly and an optical fiber adapter, wherein the optical assembly is electrically connected with the circuit board and is used for transmitting and/or receiving optical signals; the optical fiber adapter is connected with the optical component through the optical fiber ribbon so as to transmit the optical signal emitted by the optical component and transmit the external light beam to the optical component. The optical fiber adapter comprises a claw, an optical fiber plug, a contact pin and a fixing piece, wherein a penetrating light through hole is formed in the claw, and a reverse insertion boss is arranged on the inner wall of one end of the light through hole, so that an operator can prevent the external optical fiber plug from being inserted into the claw after turning over the plug of the external optical fiber, and the reverse insertion boss can avoid reverse insertion of the external optical fiber plug; one end of the optical fiber plug is fixed with an optical fiber belt, and the other end of the optical fiber plug is inserted into the other end of the light through hole, so that the optical fiber plug is connected with an external optical fiber plug through a claw to realize the optical connection of the optical fiber belt and the external optical fiber, and the optical assembly is connected with the external optical fiber through an optical fiber adapter; the optical fiber plug is provided with a through pin hole; one end of the fixing piece is contacted with the end face of the optical fiber plug, and the other end of the fixing piece is clamped and fixed with the clamping jaw, so that the optical fiber plug is fixed in the clamping jaw through the fixing piece; the fixing piece is provided with a first through hole and a second through hole which are communicated, and the diameter size of the first through hole is larger than that of the second through hole; the contact pin comprises an exposing part, a connecting part and an inserting part, wherein the exposing part is connected with the inserting part through the connecting part, the diameter of the inserting part is smaller than that of the first through hole and larger than that of the second through hole, and the inserting part is inserted into the contact pin hole of the optical fiber plug; the diameter of the connecting part is smaller than that of the second through hole, and the connecting part is clamped and fixed in the second through hole; thus, the contact pin is movably inserted into the optical fiber plug through the first through hole, and when the contact pin is inserted into the optical fiber plug through the first through hole, the contact pin can move in the first through hole and the optical fiber plug so as to facilitate the insertion or the extraction of the contact pin; the contact pin passes through the second through hole and is fixed in the optical fiber plug, namely, after the contact pin is inserted into the optical fiber plug through the first jack, the fixing piece is moved, so that the contact pin is clamped and fixed in the second through hole, and the contact pin is fixedly connected with the optical fiber plug through the second through hole instead of the traditional glue; when the optical port of the optical fiber adapter is damaged, the optical fiber plug is detached from the claw, then the contact pin is moved to the first through hole, and the contact pin is pulled out of the optical fiber plug, so that the optical port side can be freely ground, and the contact pin is installed back into the optical fiber plug through the first through hole and the second through hole after grinding; the external optical fiber is inserted into the other end of the light-passing hole and is positioned and connected with the optical fiber plug through the contact pin. According to the optical fiber plug clamping jaw, the optical fiber plug is clamped and fixed in the clamping jaw through the optimized clamping jaw design, the contact pin is assembled and disassembled through the first through hole and the second through hole of the fixing piece, the optical port damaged by maintenance and grinding of the production line is facilitated, and accordingly the scrapping loss of the optical port is reduced.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting thereof; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims

1. An optical module, comprising:

a circuit board;

wherein the fiber optic adapter comprises:

the contact pin comprises an exposing part, a connecting part and an inserting part, wherein the exposing part is connected with the inserting part through the connecting part; the diameter size of the exposing part is larger than that of the connecting part, the diameter size of the inserting part is smaller than that of the first through hole and larger than that of the second through hole, and the inserting part is inserted into the pin hole; the diameter size of the connecting part is smaller than that of the second through hole, and the connecting part is clamped in the second through hole.

2. The optical module according to claim 1, wherein an installation groove is further formed in an inner side wall at one end of the light passing hole, and the installation groove and the counter insertion boss are arranged in a staggered manner.

3. The optical module of claim 2, wherein the mounting groove is centrally symmetrical with the counter boss.

4. The optical module according to claim 2, wherein one end of the claw is provided with a first elastic buckle, the first elastic buckle is located between the mounting groove and the counter-insertion boss, and the first elastic buckle is used for clamping an external optical fiber inserted into the light through hole.

5. The optical module according to claim 1, wherein the other end of the claw is provided with a first side and a second elastic buckle, and the second elastic buckle protrudes out of the first side;

the optical fiber plug comprises an inserting core and a fixing part, wherein the outer side wall of the fixing part protrudes out of the outer side wall of the inserting core, and the inserting core penetrates through the first side face and is inserted into the light transmission hole; the connection part of the lock pin and the fixing part is provided with a second side surface, and the second side surface is abutted to the first side surface.

6. The optical module of claim 5, wherein the securing portion includes a third side facing away from the ferrule, the third side contacting an end face of the securing member; the third side surface is provided with a pin hole, the pin hole penetrates through the fixing part and the inserting core, and the pin penetrates through the first through hole or the second through hole to be inserted into the pin hole.

7. The optical module of claim 6, wherein the third side has an optical fiber receptacle disposed thereon through which the optical fiber ribbon is inserted into the optical fiber plug;

the optical fiber ribbon is inserted into the optical fiber jack through the avoidance hole.

8. The light module of claim 7 wherein one side of the fixture is provided with an opening, the opening being in communication with the relief aperture.

9. The optical module of claim 1, wherein the diameter dimension of the exposed portion is equal to or less than the diameter dimension of the inserted portion.

10. The optical module of claim 1, wherein a diameter dimension of the exposed portion is greater than a diameter dimension of the first through hole.