CN114779414A

CN114779414A - Optical module

Info

Publication number: CN114779414A
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: 2022-07-22
Anticipated expiration: 2042-05-13
Also published as: CN114779414B

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 ribbon, wherein the optical fiber adapter comprises a clamping jaw, an optical fiber plug, a contact pin and a fixing piece, a penetrating light through hole is formed in the clamping jaw, 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 of the optical fiber plug; 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; the contact pin comprises an exposed part, a connecting part and an inserting part, the inserting part is smaller than the first through hole and larger than the diameter size of the second through hole, and the inserting part is inserted into the optical fiber plug; the connecting part is smaller than the diameter of the second through hole and is clamped in the second through hole. This application has realized contact pin and fiber plug's dismouting through the first, the second through-hole of mounting, is convenient for produce the line maintenance and grinds 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 services and application modes such as cloud computing, mobile internet, video and the like, the development and progress of the optical communication technology becomes more and more important. In the optical communication technology, an optical module is a tool for realizing the interconversion of optical signals, and is one of the key components in optical communication equipment, and the transmission rate of the optical module is continuously increased along with the development requirement of the optical communication technology.

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

However, when the jack catch is used in cooperation with the MT, a lot of optical port damage occurs in production, and because the contact pin of the MT plug is fixed in the plug through dispensing, and the MT plug is fixed in the jack catch through dispensing, a production line is not convenient to maintain and grind the damaged optical port.

Disclosure of Invention

The embodiment of the application provides an optical module to optimize the assembly of jack catch and MT plug, be convenient for produce the optical port that line maintenance ground damage.

The application provides an optical module, including:

a circuit board;

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 an optical fiber ribbon;

wherein the fiber optic adapter comprises:

the clamping jaw is provided with a through light through hole, and the inner wall of one end of the light through hole is provided with a reverse insertion boss;

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

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; a first through hole and a second through hole which are communicated are arranged on the first through hole, and the diameter size of the first through hole is larger than that of the second through hole;

the contact pin comprises an exposed part, a connecting part and an inserting part, wherein the exposed 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 inserting 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 above embodiments, the optical module provided in the embodiments of the present application includes a circuit board, an optical component and an optical fiber adapter, where the optical component is electrically connected to the circuit board and is used for transmitting and/or receiving optical signals; the optical fiber adapter is connected with the optical assembly through an optical fiber ribbon so as to transmit an optical signal emitted by the optical assembly and transmit an external light beam to the optical assembly. The optical fiber adapter comprises a clamping jaw, an optical fiber plug, a contact pin and a fixing part, wherein a through light through hole is formed in the clamping jaw, and a reverse insertion boss is arranged on the inner wall of one end of the light through hole; the optical fiber assembly is characterized in that an optical fiber belt is fixed at one end of the optical fiber plug, the other end of the optical fiber plug is inserted into the other end of the light through hole, and the optical fiber plug is connected with the external optical fiber plug through a clamping jaw to realize optical connection of the optical fiber belt and the external optical fiber, so that the optical assembly is connected with the external optical fiber through the optical fiber adapter; the optical fiber plug is provided with a penetrating pin hole; one end of the fixing piece is in contact 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 with each other, and the diameter size of the first through hole is larger than that of the second through hole; the contact pin comprises an exposed part, a connecting part and an inserting part, the exposed part is connected with the inserting part through 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 contact pin hole of the optical fiber plug; 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; therefore, the contact pin passes through the first through hole and is movably inserted into the optical fiber plug, 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 extraction of the contact pin; the contact pin penetrates through the second through hole to be fixed in the optical fiber plug, 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 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; therefore, when the optical fiber adapter is damaged at the optical port, the optical fiber plug is firstly detached from the clamping jaw, then the contact pin is moved to the first through hole and 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; and the external optical fiber is inserted into the other end of the light through hole and is connected with the optical fiber plug in a positioning way through the contact pin. This application is through the jack catch design of optimizing, blocks the optical fiber plug in the jack catch through the mounting, realizes installing and removing of contact pin through first through-hole, the second through-hole of mounting, is convenient for produce the optical path that line maintenance ground the damage, can reduce the optical path and scrap the loss.

Drawings

In order to more clearly illustrate the technical solutions in the present disclosure, the drawings needed 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 can be obtained by those skilled in the art according to the drawings. Furthermore, the drawings in the following description may be regarded as schematic diagrams, and do not limit the actual size of products, the actual flow of methods, the actual timing of signals, and the like, involved in 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 a light 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 module, an optical fiber adapter, and an optical fiber plug in an optical module according to an embodiment of the present disclosure;

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 pawl in an optical module according to an embodiment of the present application;

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

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

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 disclosure;

fig. 12 is an exploded schematic view of an optical fiber adapter in an optical module according to an embodiment of the present application;

fig. 13 is a schematic view of another angle structure of a pawl 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 disclosure;

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 pawl, an optical fiber plug, a fixing member, and a contact 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 application;

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

Detailed Description

The technical solutions in some embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments provided by the present disclosure belong to the protection 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 recognized and processed by information processing devices such as computers are electrical signals, so that the optical signals and the electrical signals need to be converted into each other by using optical modules.

Fig. 1 is a connection diagram of an optical communication system according to some embodiments. As shown in fig. 1, a bidirectional optical communication system is established between a remote server 1000 and a local information processing device 2000 through an optical fiber 101, an optical module 200, an optical network terminal 100, and a 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 completed by the optical module 200 and the optical network terminal 100.

In the optical module 200, an optical port is configured to be connected with 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 plugged into the optical network terminal 100 so that the optical module 200 establishes a bi-directional electrical signal connection with the optical network terminal 100. The optical module 200 converts an optical signal and an electrical signal to each other, so that the optical fiber 101 and the optical network terminal 100 are connected to each other.

The optical network terminal 100 is provided with an optical module interface 102 and a network cable interface 104. The optical module interface 102 is configured to access the optical module 200, so that the optical network terminal 100 establishes a bidirectional electrical signal connection with the optical module 200; the network cable interface 104 is configured to access the network cable 103, such that the optical network terminal 100 establishes a bidirectional electrical signal connection with the network cable 103. The optical module 200 is connected to the network cable 103 via the optical network terminal 100. The upper computer of the Optical module 200 may include an Optical Line Terminal (OLT) and 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 projection such as a fin that increases a heat radiation area.

The optical module 200 is inserted into a cage 106 of the optical network terminal 100, the cage 106 holds the optical module 200, and heat generated by the optical module 200 is conducted to the cage 106 and then diffused by a heat sink 107. After the optical module 200 is inserted into the cage 106, an electrical port of the optical module 200 is connected to an electrical connector inside the cage 106, and the optical module 200 establishes a bidirectional electrical signal connection with the onu 100.

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

The S9820 switch 2000 supports high-density 400GE/100GE/40GE ports, can be used as convergence equipment in a three-layer structure of a data center, is connected to a TOR switch, is connected to the S12500 data center 1000 through a 400GE/100GE link in an uplink mode, and the optical module 200 is inserted into the S12500 data center 1000 to provide access of a 25G/10G server and construct a high-reliability and high-redundancy ultra-large-scale data center network.

Fig. 4 is a block diagram of a light module according to some embodiments, and fig. 5 is an exploded view of a light 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 shell comprises an upper shell 201 and a lower shell 202, wherein the upper shell 201 is covered on the lower shell 202 to form the shell with two

openings

204 and 205; the outer contour of the housing generally appears square.

The direction of the connecting line of the two

openings

204 and 205 may be the same as the length direction of the optical module 200, or may not be the same as the length direction of the optical module 200. Wherein, the opening 204 is an electric port, and the golden finger of the circuit board 300 extends out of the electric port 204 and is inserted into the upper computer; the opening 205 is an optical port, and is configured to receive an external optical fiber 101 so that the optical fiber 101 is connected to the inside of the optical module 200.

The upper shell 201 and the lower shell 202 are combined in an assembly mode, so that the circuit board 300 and other devices can be 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 a metal material, which is beneficial to achieve electromagnetic shielding and heat dissipation.

In some embodiments, the optical module 200 further comprises an unlocking feature 203 located on 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, and the connection relationship between the engaging member and the upper computer is changed, so that the engagement between the optical module 200 and the upper computer is released.

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

The circuit board 300 is generally a rigid circuit board, which can also perform a bearing function due to its relatively rigid material, for example, the rigid circuit board can stably bear a chip; the rigid circuit board can also be inserted into an electric 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 electrically connected to the electrical connector in the cage 106 by gold fingers. The golden finger is configured to establish an electrical connection with the upper computer to realize power supply, grounding, I2C signal transmission, data signal transmission and the like. Of course, the flexible circuit board may be used with the circuit board 300 in some optical modules.

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

In the embodiment of the present application, the first optical assembly 400 and the second optical assembly 500 are both optical transceiver assemblies for example.

Fig. 6 is an assembly schematic diagram of a circuit board, an optical module, an optical fiber adapter, and an optical fiber plug in an optical module provided in the embodiment of the present application. As shown in fig. 6, optical signals emitted by 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 realize the emission of light; the optical signal transmitted by the external optical fiber 700 is transmitted to the optical fiber adapter 600, and the optical fiber adapter 600 transmits the received optical signal to the first optical component 400 and the second optical component 500 through the optical fiber ribbon, respectively, so as to achieve the optical receiving.

In some embodiments, the end of the external optical fiber 700 inserted into the fiber optic adapter 600 is provided with a fiber optic plug that is inserted into the fiber optic adapter 600 during use such that the optical signals transmitted by the optical fiber ribbon are coupled into the external optical fiber through the fiber optic adapter 600 and the received optical signals transmitted by the external optical fiber are transmitted to the first and second

optical components

400, 500 through the fiber optic 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, a light through hole is provided in the claw 610, the optical fiber plug 620 is inserted into one end of the light through hole, and the optical fiber plug 620 is connected to the first optical component 400 and the second optical component 500 through an optical fiber ribbon; the external optical fiber 700 is inserted into the other end of the light through hole, and the external optical fiber 700 is coupled with the optical fiber plug 620, so as to realize the coupling connection between the optical fiber adapter 600 and the external optical fiber.

Fig. 8 is a schematic structural diagram of a pawl in an optical module provided in an embodiment of the present application, and fig. 9 is a cross-sectional view of the pawl in the optical module provided in the embodiment of the present application. As shown in fig. 8 and 9, the jaw 610 includes a jaw body, the jaw body is provided with a through light hole 6130, two opposite side surfaces of the jaw body are provided with slots, one end of the slot is provided with an opening, the slot is provided with a first elastic buckle 6160, one end of the first elastic buckle 6160 is fixedly connected to the jaw body, so that the first elastic buckle 6160 can be opened and closed by a fixed end, so that the first elastic buckle 6160 is outwardly supported or inwardly clamped.

In some embodiments, the jaw body includes a first body 6102, a second body 6101, and an opposite side 6103, the first body 6102 is opposite to the second body 6101, two ends of the side 6103 are respectively connected to the first body 6102 and the second body 6101, a slot 6104 is disposed on the side 6103, an opening is disposed at one end of the slot 6104 facing the external optical fiber 700, 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 within the slot 6104 by a predetermined angle, thereby clamping and connecting the external optical fiber 700 inserted into the jaw 610.

In some embodiments, an installation groove 6110 is disposed on an inner side wall of the first body 6102 facing the light through hole 6130, and the installation groove 6110 may be used to guide an external optical fiber plug to be inserted into the light through hole 6130, that is, when the external optical fiber 700 is inserted into the light through hole 6130 of the claw 610, the external optical fiber 700 may be inserted into the claw 610 along the installation groove 6110, and the external optical fiber 700 is clamped and fixed by the claw 610, so that the clamping and fixing connection between the external optical fiber 700 and the claw 610 is realized.

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

However, the latch 610 is an elastic member, and if a worker fails to operate the optical fiber connector, when the external optical fiber 700 is inserted into the latch 610 in a reverse direction (rotating 360 degrees), the external optical fiber 700 can also open the latch 610 and be successfully inserted into the latch 610, so that the external optical fiber 700 and the optical fiber plug 620 in the latch 610 cannot be coupled, and the optical coupling effect is affected.

In some embodiments, in order to prevent 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 through hole 6130, the reverse insertion boss 6120 and the installation groove 6110 are disposed in a staggered manner, that is, the installation groove 6110 is disposed on the first body 6102, the reverse insertion boss 6120 is disposed on the second body 6101, and the installation groove 6110 is disposed opposite to the reverse insertion boss 6120.

In some embodiments, the mounting groove 6110 and the reverse insertion boss 6120 are arranged in central symmetry, that is, when the first body 6102 of the clamping jaw 610 is turned downward by 360 degrees, the turned mounting groove 6110 and the reverse insertion boss 6120 on the second body 6101 are located at the same position of the clamping jaw body. Therefore, when an 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, and the reverse insertion boss 6120 prevents the external optical fiber 700 from being inserted inwards continuously, 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 reminded of correctly inserting the external optical fiber 700.

In some embodiments, the installation groove 6110 may also be disposed on the second body 6101 of the jaw 610, the reverse insertion boss 6120 is disposed on the first body 6102 of the jaw 610, and the reverse insertion boss on the first body 6102 and the installation groove on the second body 6101 are disposed in central symmetry.

Fig. 10 is a schematic structural diagram of an external optical fiber in an optical module according to 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 according to the embodiment of the present application. As shown in fig. 10 and 11, one end of the external optical fiber 700 inserted into the pawl 610 is provided with a plug, the plug is provided with a protrusion 710, the protrusion 710 is provided on an upper side surface of the plug, and the protrusion 710 is provided corresponding to the mounting groove 6110 of the pawl 610. Thus, when the external optical fiber 700 is inserted into the claw 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 claw 610.

In some embodiments, when an 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 reverse insertion boss 6120 on the second body 6101, and the reverse insertion boss 6120 blocks the turned protrusion 710 from being inserted further inward, so that the external optical fiber 700 cannot be inserted into the claw 610, and the operator is warned of reverse insertion.

In some embodiments, a limiting surface 6170 is disposed in the light through hole 6130 of the pawl 610, and a diameter of the light through hole penetrating through the limiting surface 6170 is smaller than a diameter of the light through hole between the first body 6102 and the second body 6101, so that when the external optical fiber 700 is inserted into the light through hole 6130 of the pawl 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 face of the external optical fiber 700 abuts against the limit face 6170, the external optical fiber 700 is clamped and connected by the first elastic buckle 6160. Specifically, a fixing groove may be disposed on a plug side surface of the external optical fiber 700, and after the external optical fiber 700 is inserted into the claw 610, the first elastic buckle 6160 is clamped into the fixing groove, so that the external optical fiber 700 is fixedly connected to the claw 610 by the first elastic buckle 6160.

When the external optical fiber 700 needs to be detached, the first elastic buckle 6160 may be pulled, 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 outward, so that the separation of the external optical fiber 700 from the claw 610 is achieved.

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 inserting the fiber optic plug 620 into the jaws 610 and positioning and connecting the external optical fiber 700 with the fiber optic plug 620, the fiber optic adapter 600 further includes a fixing member 630 and a pin 640, one end of the fixing member 630 contacts with an end face of the fiber optic plug 620, and the other end of the fixing member 630 is clamped and fixed with the jaws 610, so that the fiber optic plug 620 is clamped and fixed in the jaws 610 by the fixing member 630.

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

The second elastic buckle 6140 can rotate within a predetermined angle range, so that the second elastic buckle 6140 can be clamped inward to fix the optical fiber plug 620, and can also be pulled outward to detach the optical fiber plug 620.

In some embodiments, the end of the pawl 610 facing away from the external optical fiber 700 is further provided with a first lateral surface 6150, the light through hole 6130 penetrates through the first lateral surface 6150, so that the optical fiber plug 620 can be inserted into the pawl 610 through the light through hole 6130, and the optical fiber plug 620 is limited by the first lateral surface 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, and an outer side wall of the fixing portion 6220 protrudes from an outer side wall of the ferrule 6210, that is, both a width dimension in the vertical direction and a length dimension in the front-rear direction of the fixing portion 6220 are larger than a width dimension in the vertical direction and a length dimension in the front-rear direction of the ferrule 6210.

When the optical fiber plug 620 is inserted into the light through hole 6130 of the clamping jaw 610, the inserting core 6210 extends into the light through hole 6130, the first lateral surface 6150 abuts against the second lateral surface 6260, so that the optical fiber plug 620 is limited through the first lateral surface 6150, and the fixing part 6220 is located outside the light through hole 6130.

In some embodiments, the second resilient clips 6140 of the claws 610 protrude from the first lateral surface 6150, the ferrule 6210 of the optical fiber plug 620 is inserted into the light through holes 6130 of the claws 610, and the fixing portion 6220 of the optical fiber plug 620 is located in the gap between the second resilient clips 6140.

The holder 6220 further includes a third side 6230 facing away from the ferrule 6210, the third side 6230 being in contact with an end surface of the fixing member 630. Specifically, the insertion core 6210 of the optical fiber plug 620 is inserted into the light through holes 6130 of the claws 610, the second side 6260 of the optical fiber plug 620 abuts against the first side 6150 of the claws 610, then the fixing member 630 abuts against the third side 6230 of the optical fiber plug 620, and then abuts against the end face of the fixing member 630 through the second elastic buckle 6140, so as to apply force to the fixing member 630 and the optical fiber plug 620, so that the optical fiber plug 620 and the fixing member 630 are clamped in the claws 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 6230 is provided with a fiber jack 6240, the fifth side 6270 is provided with a plurality of fiber holes arranged side by side, and the plurality of fiber holes are communicated with the fiber jack 6240, so that the optical fiber ribbon is inserted into the fiber plug 620 through the fiber jack 6240, and each optical fiber in the optical fiber ribbon is arranged 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 positioned 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 clamping jaws 610, the optical signal transmitted by the optical fiber is coupled to the external optical fiber 700 through the optical fiber hole; the light exit surface of the optical fiber may also protrude from the optical fiber plug 620, i.e. 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 clamping claws 610, the optical signal transmitted by the optical fiber is directly coupled to the external optical fiber 700.

Fig. 15 is a schematic structural diagram of a fixing element in an optical module provided in an embodiment of the present application, and fig. 16 is a schematic structural diagram of a pin in an optical module provided in the embodiment of the present application. As shown in fig. 15 and 16, the fixing member 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, the sixth side contacts with 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 member 630, so as to apply force to fix the pawl 610, the optical fiber plug 620 and the fixing member 630.

The fixing member 630 is provided with an avoiding hole 6320 extending therethrough, the avoiding hole 6320 is disposed opposite to the optical fiber jack 6240 on the third side 6230, so that the optical fiber ribbon connecting the first optical assembly 400 and the second optical assembly 500 passes through the avoiding hole 6320 and is inserted into the optical fiber jack 6240, so as to achieve the optical fiber connection between the first optical assembly 400, the second optical assembly 500 and the optical fiber adapter 600.

In some embodiments, to facilitate passage of the optical fiber ribbon through the clearance hole 6320, one side of the fixing member 630 may be provided with an opening communicating with the clearance hole 6320 so that the optical fiber ribbon may be inserted into the clearance hole 6320 through the upper opening.

The third side 6230 of the optical fiber plug 620 is further provided with a pin hole 6250, and the pin hole 6250 penetrates through the fixing part 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 of the first through hole 6330 is larger than that of the second through hole 6340.

The pin 640 includes an exposed portion 6410, a connecting portion 6420 and an inserting portion 6430, the exposed portion 6410 is connected to the inserting portion 6430 by the connecting portion 6420, a diameter size of the exposed 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 access to the pins 640, the diameter of the exposed portion 6410 may be greater than the diameter of the first through hole 6330. In this way, 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, 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 to clip the connecting portion 6420 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 clipped on the fixing member 630.

In some embodiments, the optical fiber plug 620 may be an MT male plug, and the plug of the external optical fiber 700 is a corresponding MT female plug, that is, after the inserting pin 640 is fixed to the optical fiber plug 620, one end of the inserting pin 640 opposite to the exposed portion 6410 protrudes out of the optical fiber plug 620, so that when the external optical fiber 700 is inserted into the claw 610, the protruding inserting pin 640 is inserted into the inserting hole on the end face of the external optical fiber 700, so as to realize the 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 contact pin in an optical module provided in the embodiment of the present application, fig. 18 is a cross-sectional view of an optical fiber adapter in an optical module provided in the embodiment of the present application, and fig. 19 is another angle cross-sectional view of an optical fiber adapter in an optical module provided in the embodiment of the present application. As shown in fig. 17, 18 and 19, when the optical fiber adapter 600 is assembled, the sixth side surface of the fixing member 630 is first abutted against the third side surface 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 connecting surface of the connecting portion 6420 and the fourth side surface 6310 of the fixing member 630; then, the fixing member 630 is moved, so that the connecting portion 6420 of the pin 640 is snapped into the second through hole 6340, and thus the pin 640 is fixedly connected with the optical fiber plug 620 through the fixing member 630 without glue; the assembled optical fiber plug 620 and the fixing member 630 are then inserted into the light-passing holes 6130 of the claws 610 together with the inserting pins 640, so that the second side 6260 of the optical fiber plug 620 abuts against the first side 6150 of the claws 610, and the second elastic buckles 6140 abut against the fourth side 6310 of the fixing member 630, thereby fixing the optical fiber plug 620 and the fixing member 630 in the claws 610.

When the optical fiber adapter 600 has an optical port damage and the optical port needs to be ground, the second elastic buckle 6140 is firstly pulled off, the optical fiber plug 620, the fixing member 630 and the inserting pin 640 are removed from the claws 610, then the fixing member 630 is moved, the connecting portion 6420 of the inserting pin 640 is moved into the first through hole 6330, and the inserting pin 640 is pulled out from the first through hole 6330 and the inserting pin hole 6250. After the contact pin 640 is pulled out of the optical fiber plug 620, the optical fiber side is freely ground, and the optical fiber adapter 600 is assembled in sequence after the grinding is completed.

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 used for transmitting and/or receiving optical signals; the optical fiber adapter is connected with the optical assembly through an optical fiber ribbon so as to transmit an optical signal emitted by the optical assembly and transmit an external light beam to the optical assembly. The optical fiber adapter comprises a clamping jaw, an optical fiber plug, a contact pin and a fixing piece, wherein a through light through hole is formed in the clamping jaw, and a reverse insertion boss is arranged on the inner wall of one end of the light through hole; the optical fiber band is fixed at one end of the optical fiber plug, 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 the external optical fiber plug through the clamping jaw to realize the optical connection of the optical fiber band and the external optical fiber, and the optical assembly is connected with the external optical fiber through the optical fiber adapter; the optical fiber plug is provided with a penetrating pin hole; one end of the fixing piece is in contact 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 exposed part, a connecting part and an inserting part, the exposed part is connected with the inserting part through 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 contact pin hole of the optical fiber plug; 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; therefore, the contact pin passes through the first through hole and is movably inserted into the optical fiber plug, 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 extraction of the contact pin; the contact pin penetrates through the second through hole to be 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 in the second through hole, and therefore the contact pin and the optical fiber plug are fixedly connected through the second through hole instead of through traditional glue; therefore, when the optical fiber adapter is damaged at the optical port, the optical fiber plug is firstly detached from the clamping jaw, then the contact pin is moved to the first through hole and 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; and the external optical fiber is inserted into the other end of the light through hole and is connected with the optical fiber plug in a positioning way through the contact pin. This application is through the jack catch design of optimizing, through the mounting with the optic fibre plug card in the jack catch, realize installing and removing of contact pin through first through-hole, the second through-hole of mounting, is convenient for produce the optical connection of line maintenance grinding damage to the optical connection is scrapped the loss has been reduced.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; 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 solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims

1. A light module, comprising:

a circuit board;

the optical fiber adapter is connected with the optical assembly through an optical fiber ribbon;

wherein the fiber optic adapter comprises:

the clamping jaw is provided with a through light hole, and the inner wall of one end of the light hole is provided with a reverse insertion boss;

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; a first through hole and a second through hole which are communicated with each other are arranged on the first through hole, and the diameter size of the first through hole is larger than that of the second through hole;

2. The optical module according to claim 1, wherein a mounting groove is further disposed on an inner sidewall of one end of the light through hole, and the mounting groove and the reverse insertion boss are disposed in a staggered manner.

3. The optical module of claim 2, wherein the mounting groove and the reverse insertion boss are arranged in a central symmetry.

4. The optical module according to claim 2, wherein a first elastic buckle is disposed at one end of the clamping jaw, the first elastic buckle is located between the mounting groove and the reverse 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 a first side surface and a second elastic buckle are arranged at the other end of the clamping jaw, and the second elastic buckle protrudes out of the first side surface;

the optical fiber plug comprises a plug core and a fixing part, the outer side wall of the fixing part protrudes out of the outer side wall of the plug core, and the plug core penetrates through the first side surface and is inserted into the light through hole; and a second side surface is arranged at the joint of the inserting core and the fixing part, and the second side surface is abutted against the first side surface.

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

7. The optical module of claim 6, wherein the third side is provided with an optical fiber jack through which the optical fiber ribbon is inserted into the optical fiber plug;

the optical fiber ribbon is characterized in that a avoiding hole is formed in the fixing piece, the avoiding hole and the optical fiber jack are arranged oppositely, and the optical fiber ribbon penetrates through the avoiding hole and is inserted into the optical fiber jack.

8. The optical module according to claim 7, wherein an opening is provided at one side of the fixing member, and the opening is communicated with the avoiding hole.

9. The optical module according to claim 1, wherein a diameter dimension of the exposed portion is equal to or smaller than a diameter dimension of the insertion portion, and the diameter dimension of the exposed portion is larger than the diameter dimension of the connection 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.