CN219737844U

CN219737844U - Optical module

Info

Publication number: CN219737844U
Application number: CN202320967740.7U
Authority: CN
Inventors: 王目喜; 张翠改; 胡凯丽; 赵洪磊; 仲兆良
Original assignee: Qingdao Xinghang Photoelectric Technology Co ltd
Current assignee: Qingdao Xinghang Photoelectric Technology Co ltd
Priority date: 2023-04-25
Filing date: 2023-04-25
Publication date: 2023-09-22
Anticipated expiration: 2033-04-25

Abstract

The utility model discloses an optical module, comprising: the circuit board comprises a first rigid plate, a flexible plate and a second rigid plate, wherein the first rigid plate is connected with the second rigid plate through the flexible plate; the second rigid plate is provided with an array hole; the electric connector comprises a base, wherein the top end surface of the base is provided with a contact pin connecting end, and the bottom end surface of the base is provided with a plugging connecting end; the contact pin connecting end is electrically connected with the inserting connecting end; the contact pin connecting end is welded with the array hole of the second rigid plate; the chip assembly is arranged on the top end surface of the first rigid plate and is electrically connected with the first rigid plate; a housing which is covered on the first rigid plate and forms a sealed chamber with the first rigid plate; the optical connector of the optical fiber assembly is positioned in the sealed cavity, the optical fiber of the optical fiber assembly passes through the shell, and the optical interface of the optical fiber assembly is positioned outside the sealed cavity. The optical module can be connected with the plugging connection end of the equipment electrical interface through the plugging connection end of the electrical connector, realizes the conversion of equipment from cable communication to optical cable communication on the basis of not changing the equipment structure, and is easy to realize equipment iteration.

Description

Optical module

Technical Field

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

Background

Along with popularization and deep application of optical communication, various packaged optical modules, such as SFF, SFP, QSFP and other industry standard packaged optical modules, are layered in order to adapt to different application scenes.

QSFP, CXP, CDFP, and the like, an AOC (active optical cable ), the electrical interface is located on a device motherboard in the panel, and after the optical module is plugged, the optical module is fixed and prevented from falling off by a Cage (Cage) mounted on the motherboard, so that the application has weak vibration resistance, and is generally used for ground static devices such as a data center.

Optical modules applied in special fields or special environments are also continuously developed, for example, optical modules with working conditions such as vibration, impact or temperature change in the use process can be met, such as customized packaging optical modules such as LCC (liquid crystal display) and the like, and the optical modules are mainly applied to equipment panels at present, and data transmission between equipment is transferred through an optical fiber connector on the panel.

If the equipment needs to change the original cable communication into the optical cable communication, the structural system of the equipment needs to be changed, and the cost and the difficulty are high.

Disclosure of Invention

The optical module provided by the utility model realizes the conversion from cable communication to optical cable communication on the basis of not changing the equipment structure, and is easy to realize equipment iteration.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the optical module provided by the utility model comprises:

the circuit board comprises a first rigid board, a flexible board and a second rigid board, wherein the first rigid board is connected with the second rigid board through the flexible board; the second rigid plate is provided with an array hole;

the electric connector comprises a base, wherein the top end surface of the base is provided with a contact pin connecting end, and the bottom end surface of the base is provided with a plugging connecting end; the contact pin connecting end is electrically connected with the inserting connecting end; the contact pin connecting end is welded with the array holes of the second rigid plate;

a chip assembly mounted on a top end surface of the first rigid board and electrically connected with the first rigid board;

a housing which is covered on the first rigid plate and forms a sealed cavity with the first rigid plate;

and the optical fiber assembly is provided with an optical connector positioned in the sealed cavity, an optical fiber passes through the shell, and an optical interface positioned outside the sealed cavity.

In some embodiments of the utility model, a bottom end surface of the optical interface of the optical fiber assembly is connected with a top end surface of the first rigid plate; the optical module further comprises a first protective cover, the first protective cover is arranged on the optical interface, and the bottom end face of the first protective cover is in contact with and fixed with the top end face of the first rigid plate.

In some embodiments of the utility model, the light module further comprises a second protective cover; the second protective cover is covered on the chip assembly, and the bottom end face of the second protective cover is contacted with and fixed to the top end face of the first rigid plate.

In some embodiments of the present utility model, the top end surface and the bottom end surface of the first rigid plate are both provided with annular connection areas; the shell comprises an upper shell and a lower shell;

the upper shell comprises a top cover and an annular frame, the top end face of the annular frame of the upper shell is connected with the top cover, and the bottom end face of the annular frame of the upper shell is connected with an annular connecting area of the top end face of the first rigid plate;

the lower shell comprises a bottom plate and an annular frame, the bottom end face of the annular frame of the lower shell is connected with the bottom plate, and the top end face of the annular frame of the lower shell is connected with an annular connecting area of the bottom end face of the first rigid plate.

In some embodiments of the present utility model, the first rigid plate further has a mounting hole, and the upper housing, the first rigid plate, and the lower housing are connected together by screws.

In some embodiments of the utility model, the electrical connector is a micro rectangular electrical connector.

In some embodiments of the utility model, the chip assembly includes an electrical chip and an optical chip; the electric chip and the optical chip are adhered to the top end face of the first rigid plate by adopting heat conduction patch adhesive.

In some embodiments of the present utility model, two chip assemblies are provided, and two optical fiber assemblies are provided, which are adapted to each other;

and the optical fiber assembly and the optical chip of the corresponding chip assembly perform optical signal transmission.

In some embodiments of the utility model, the optical connector of the optical fiber assembly is a Mini-MT connector; the Mini-MT joint performs optical signal transmission with a lens array, and the lens array performs optical signal transmission with an optical chip of the chip assembly; the lens array is located within the sealed chamber.

In some embodiments of the present utility model, the optical connector of the optical fiber assembly is an optical fiber array connector, and the optical fiber array connector performs optical signal transmission with an optical chip of the chip assembly.

Compared with the prior art, the technical scheme of the utility model has the following technical effects: the optical module is used for installing the chip assembly through designing the first rigid plate and is electrically connected with the chip assembly; the second rigid plate is provided with an array hole which is used for being welded and electrically connected with the contact pin connecting end of the electric connector, and the plugging connecting end of the electric connector is used for being connected with the plugging connecting end of the equipment electric interface; the first rigid plate and the second rigid plate are connected through the flexible plate, so that the orientation of the inserting connection end of the electric connector can be conveniently changed, and the electric connector can be conveniently connected with the inserting connection end of the electric interface of the equipment. Therefore, the optical module can be connected with the plugging connection end of the equipment electrical interface through the plugging connection end of the electrical connector, and the conversion from cable communication to optical cable communication of the equipment is realized on the basis of not changing the equipment structure, so that the optical module is simple and convenient, has low cost and is easy to realize equipment iteration.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an embodiment of an optical module according to the present utility model;

FIG. 2 is a schematic view of the structure of FIG. 1 at another angle;

FIG. 3 is an exploded view of FIG. 1;

FIG. 4 is a schematic diagram of the connection of the circuit board, upper housing of FIG. 1;

FIG. 5 is a schematic diagram of the connection of the circuit board, lower housing of FIG. 1;

FIG. 6 is a schematic diagram of the circuit board of FIG. 1;

FIG. 7 is a schematic view of another embodiment of an optical module according to the present utility model;

FIG. 8 is a schematic view of the structure of FIG. 7 at another angle;

FIG. 9 is an exploded view of FIG. 7;

FIG. 10 is a schematic diagram of the connection of the circuit board, upper housing of FIG. 7;

FIG. 11 is a schematic diagram of the connection of the circuit board, lower housing of FIG. 7;

FIG. 12 is a schematic diagram of the circuit board of FIG. 7;

FIG. 13 is an exploded view of FIG. 12;

FIG. 14 is a schematic diagram of an embodiment of a fiber optic assembly;

FIG. 15 is a schematic structural view of yet another embodiment of a fiber optic assembly.

Fig. 16 is a schematic structural diagram of an AOC.

Reference numerals:

10. a circuit board; 11. a first rigid plate; 11-1, mounting holes; 11-2, mounting holes; 11-3, mounting holes; 12. a second rigid plate; 12-1, array wells; 13. a flexible plate;

20. an electrical connector; 21. the contact pin connecting end; 22. inserting a connecting end; 23. a base;

30. a chip assembly; 31. an electrical chip; 32. an optical chip;

40. a housing; 41. an upper housing; 41-1, a top cover; 41-2, an annular frame; 42. a lower housing; 42-1, a bottom plate; 42-2, an annular frame;

50. an optical fiber assembly; 51. an optical joint; 52. an optical fiber; 53. an optical interface;

61. a first shield; 62. a second shield;

70. a lens array;

81. an adhesive; 82. a screw; 83. a screw;

90. an optical fiber assembly; 91. an optical joint; 92. an optical fiber; 93. an optical interface.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The optical module of the present embodiment includes a circuit board 10, an electrical connector 20, a chip assembly 30, a housing 40, an optical fiber assembly 50, and the like, as shown in fig. 1 to 16.

A circuit board 10 including a first rigid board 11, a flexible board 13, and a second rigid board 12; the first rigid plate 11 is connected with the second rigid plate 12 through the flexible plate 13; the second rigid plate 12 has an array of holes 12-1. The first rigid plate 11 and the second rigid plate 12 are electrically connected through the flexible plate 13.

The electrical connector 20 comprises a base 23, wherein the top end surface of the base 23 is provided with a convex pin connection end 21, and the bottom end surface of the base is provided with a convex insertion connection end 22; the contact pin connecting end 21 is electrically connected with the inserting connecting end 22; the pin connection terminals 21 are soldered to the array holes 12-1 of the second rigid plate 12 and electrically connected to each other for electrical signal transmission. The plugging connection terminal 22 is used for connecting with a plugging connection terminal of an electrical interface of the device and transmitting electrical signals with the device.

And a chip assembly 30 mounted on the top end surface of the first rigid board 11. The chip assembly 30 is electrically connected with the first rigid board 11, so as to realize electric signal transmission.

And a housing 40 which is provided to cover the first rigid plate 11, wherein the housing 40 and the first rigid plate 11 form a sealed chamber. The chip assembly 30 is located within the sealed chamber.

An optical fiber assembly 50 includes an optical connector 51, an optical fiber 52, and an optical interface 53. The optical connector 51 is located within the sealed chamber and the optical fiber 52 passes through the housing 40 and the optical interface 53 is located outside the sealed chamber. One end of the optical fiber 52 is connected with the optical connector 51, and the optical connector 51 and the chip assembly 30 perform optical signal transmission; the other end of the optical fiber 52 is connected to an optical interface 53. The optical interface 53 is used to connect an optical cable or other device.

Since the first rigid plate 11 and the second rigid plate 12 are connected through the flexible plate 13, the angle between the first rigid plate 11 and the second rigid plate 12 can be changed by bending the flexible plate 13, so that the orientation of the plugging connection end 22 of the electrical connector 20 can be changed, and the plugging connection end 22 can be conveniently connected with the plugging connection end of the electrical interface of the device.

Because the flexible board 13 is convenient to bend, the included angle between the first rigid board 11 and the second rigid board 12 is convenient to change, so that the direction of the inserting connection end 22 is opposite to the direction of the optical interface 53.

For example, the optical interface 53 is oriented horizontally, and the flexible plate 12 is bent such that the first rigid plate 11 is perpendicular to the second rigid plate 12, so that the plugging connection end 22 is oriented horizontally and opposite to the optical interface 53.

The contact pin connecting end 21 is welded with the array hole 12-1 of the second rigid plate 12, and the inserting connecting end 22 is used for being connected with an inserting connecting end of an equipment electrical interface, so that the inserting and pulling electrical interface of the optical module is realized, and the connection with the equipment is facilitated.

The optical module of the present embodiment is configured to mount the chip assembly 30 by designing the first rigid board 11, and electrically connect with the chip assembly 30; the array hole 12-1 is designed on the second rigid plate 12 and is used for being welded and electrically connected with the pin connection end 21 of the electric connector 20, and the inserting connection end 22 of the electric connector 20 is used for being connected with the inserting connection end of the electric interface of the equipment; since the first rigid board 11 and the second rigid board 12 are connected through the flexible board 13, the orientation of the plugging connection end 22 of the electrical connector 20 can be conveniently changed so as to be connected with the plugging connection end of the electrical interface of the device. Therefore, the optical module of this embodiment can be connected with the plugging connection end of the electrical interface of the device through the plugging connection end 22 of the electrical connector 20, and on the basis of not changing the structure of the device, the conversion from cable communication to optical cable communication of the device is realized, which is simple and convenient, and the iteration of the device is easy to realize.

By utilizing the optical module of the embodiment, the switching of the equipment from cable communication to optical cable communication can be realized without changing the structure of the equipment, the application range is wide, the cost is low, and the popularization and the application are convenient.

The circuit board of the present embodiment is a rigid-flexible-rigid board, and the pin connection ends 21 of the electrical connector 20 and the array holes 12-1 of the second rigid board 12 are soldered by straight pins to achieve electrical connection. If the circuit board 10 is a rigid board, the pin connection ends of the electrical connectors are soldered with the array holes of the rigid board using bent pins.

As shown in fig. 4, the second rigid plate 12 has 36Pin array holes 12-1 thereon for soldering with Pin connection ends 21 of the electrical connector 20.

As shown in fig. 10, the second rigid plate 12 has a 100Pin array hole 12-1 thereon for soldering with the Pin connection end 21 of the electrical connector 20.

In some embodiments of the present utility model, to protect the safety of the optical interface 53, the bottom end surface of the optical interface 53 is connected to the top end surface of the first rigid board 11 (an adhesive is disposed in a gap between the optical interface 53 and the first rigid board 11, and the connection is achieved through the adhesive). The optical module further includes a first protection cover 61, the first protection cover 61 is covered on the optical interface 53, and a bottom end surface of the first protection cover 61 contacts with and is fixed to a top end surface of the first rigid board 11, so that the optical interface 53 is fixed to the first rigid board 11 in position, and the optical interface 53 is prevented from shaking, as shown in fig. 4. The upper case 41, the optical interface 53 and the first cover 61 are all made of adhesive.

The bottom end surface of the first protective cover 61 is provided with a mounting edge, the mounting edge is provided with a mounting hole, the corresponding position of the first rigid plate 11 is provided with a mounting hole 11-2, as shown in fig. 6, a screw 82 penetrates the mounting hole on the mounting edge and the mounting hole 11-2 on the first rigid plate 11 and stretches into the lower shell 42 to fix the first protective cover 61 with the first rigid plate 11 and the lower shell 42 together, so that the optical interface 53 and the first rigid plate 11 are fixed in position, as shown in fig. 4.

In some embodiments of the present utility model, in order to protect the chip assembly 30 and ensure the normal operation of the chip assembly 30, the optical module further includes a second protection cover 62, as shown in fig. 6 and 12; the second cover 62 is disposed on the chip assembly 30, and the bottom surface of the second cover 62 is in contact with and fixed to the top surface of the first rigid plate 11. The second shield 62 is bonded or welded to the first rigid plate 11.

The second protective cover 62 is also used to cover the lens array 70, and protect the lens array 70.

In some embodiments of the present utility model, in order to facilitate the disassembly and assembly of the housing 40 and the first rigid plate 11, the top end surface and the bottom end surface of the first rigid plate 11 are provided with annular connection areas; the housing 40 includes an upper housing 41 and a lower housing 42.

The upper case 41 includes a top cover 41-1 and an annular rim 41-2, the top surface of the annular rim 41-2 of the upper case 41 is connected with the top cover 41-1, and the bottom surface of the annular rim 41-2 of the upper case 41 is connected (welded or bonded) with an annular connection area of the top surface of the first rigid plate 11. The top cover 41-1 and the annular rim 41-2 may be integrally formed.

The lower housing 42 includes a bottom plate 42-1 and an annular rim 42-2, the bottom surface of the annular rim 42-2 of the lower housing 42 is connected with the bottom plate 42-1, and the top surface of the annular rim 42-2 of the lower housing 42 is connected (welded or bonded) with an annular connection area of the bottom surface of the first rigid plate 11. The bottom plate 42-1 and the annular rim 42-2 may be integrally formed.

That is, the upper case 41 is covered on the top end surface of the first rigid plate 11 and fixed together with the first rigid plate 11; the lower case 42 is covered on the bottom surface of the first rigid plate 11 and is fixed to the first rigid plate 11.

The top end surfaces of the upper shell 41 and the first rigid plate 11 enclose a sealed cavity, and the chip assembly 30 is positioned in the sealed cavity, so that the safety of the chip assembly 30 is ensured.

The lower housing 42 is connected to the bottom surface of the first rigid board 11, so that the safety of the electrical devices on the back surface of the first rigid board 11 can be ensured.

In some embodiments of the present utility model, in order to further ensure the connection stability between the first rigid plate 11 and the upper and lower cases 41 and 42, the first rigid plate 11 is further provided with a mounting hole 11-1, as shown in fig. 6, and the upper and lower cases 41 and 11 and 42 are connected together by a screw 83, as shown in fig. 5.

Specifically, the first rigid plate 11 has a plurality of mounting holes 11-1, and a plurality of mounting holes are also formed in corresponding positions of the lower housing 42, and the screws 83 sequentially penetrate through the mounting holes of the lower housing 42 and the mounting holes 11-1 of the first rigid plate 11, and then are drilled into the annular frame 41-2 of the upper housing 41 (the screws 83 are not exposed out of the upper housing), so that stable and reliable connection of the lower housing 42, the first rigid plate 11 and the lower housing 41 is realized, and the disassembly and the assembly are convenient.

In some embodiments of the present utility model, the annular rim 41-2 of the upper housing 41 has a penetration opening through which the optical fiber 52 of the optical fiber assembly 50 passes; the penetrating opening and the optical fiber 52 are fixed and sealed through an adhesive, so that the optical fiber 52 is prevented from shaking, and the tightness of the sealing cavity is ensured.

The first cover 61 is fixed to the upper case 41 by an adhesive 81, as shown in fig. 4.

In some embodiments of the present utility model, the upper housing 41 and the lower housing 42 are made of metal, and the metal housing can not only conduct heat rapidly, but also have high strength and can protect devices in the sealed chamber.

In some embodiments of the present utility model, the electrical connector 20 is a micro-rectangular electrical connector that is adaptable to facilitate electrical interfacing with a device. The micro rectangular electrical connector is soldered to the array of holes 12-1 on the second rigid plate 12.

In some embodiments of the utility model, chip assembly 30 includes an electrical chip 31 and an optical chip 32; the electric chip 31 and the optical chip 32 are adhered to the top end surface of the first rigid plate 11 by using heat-conducting adhesive. The heat-conducting patch adhesive has the functions of fixing the electric chip 31 and the optical chip 32 and radiating heat, and can rapidly radiate heat on the electric chip 31 and the optical chip 32.

The first rigid plate 11 is electrically connected to the electric chip 31 by gold wire bonding wires, and the electric chip 31 is electrically connected to the optical chip 32.

In some embodiments of the present utility model, one chip assembly 30 may be provided, and one fiber assembly 50 may be provided, as shown in fig. 1 to 6.

In still other embodiments of the present utility model, the optical communication width is increased, two chip assemblies 30 are provided, two compatible fiber optic assemblies 50 are provided, and reference is made to fig. 7-13.

Two chip assemblies 30 are placed side by side and two fiber assemblies 50 are placed side by side.

The optical fiber assembly 50 performs optical signal transmission with the optical chip 32 of the corresponding chip assembly 30.

The lens arrays 70 are also provided in two, and the two optical connectors 51 and the two lens arrays 70 are configured to perform optical signal transmission, and the two lens arrays 70 and the two optical chips 32 are configured to perform optical signal transmission, and the two optical chips 32 and the two electrical chips 31 are configured to perform electrical signal transmission.

In some embodiments of the present utility model, the optical connector 51 of the fiber optic assembly 50 is a Mini-MT connector, as shown in FIG. 14; the Mini-MT connector is in optical communication with a lens array 70, and the lens array 70 is in optical communication with the optical chip 32 of the chip assembly 30. The lens array 70 is located within the sealed chamber. The Mini-MT joint has simple design, low cost and convenient realization.

The optical chip 32 of the chip assembly 30 is in optical signal communication with the lens array 70, and the lens array 70 is in optical signal communication with the optical connector 51 of the fiber optic assembly 50.

The lens array 70 is coupled to the optical chip 32 directly above the optical chip 32. The second protective cover 62 is covered on the electric chip 31 and the lens array 70 to ensure the safety of the lens array 70.

The optical interface 53 may be an MT optical interface.

After the optical interface 53 is connected with the optical cable, a pigtail type parallel optical module or a multi-core active optical cable is formed, or optical cables with different branches are connected, data transmission among a plurality of positions and different nodes is realized through the branch optical cable, for example, the A main node is 12T12R, the B branch node, the C branch node is 4T4R, the D branch node and the E branch node is 2T2R, and data transmission between the A main node and each branch node of B/C/D/E is realized.

The assembly process of the optical module comprises the following steps: the SMT process paster of the circuit board, the electric chip and the optical chip are bonded to the first rigid plate by adopting heat conduction paster glue, and the electric chip is interconnected with the printed graph of the first rigid plate through a gold wire bonding process; the lens array is coupled and aligned with the photosensitive surface of the optical chip, the adhesive fixes the Mini-MT joint in the lens array and the optical fiber assembly to the first rigid plate, and after the second protective cover protects the optical path areas such as the chip assembly, the lens array and the like, the sealant seals the periphery of the second protective cover and the Mini-MT joint; the screw 83 passes through the first rigid plate to fasten the upper shell and the lower shell, the optical fiber 52 passes through the upper shell and is fixed by an adhesive, and the first protective cover is fixed with the first rigid plate by the screw 82; the first protective cover is filled with adhesive, fixes the optical interface MT and protects the optical fiber.

The flexible board 13 is bent so that the first rigid board 11 is perpendicular to the second rigid board 12, and the insertion connection end 22 of the electrical connector 20 and the optical interface 53 are opposite in orientation. Then, the first rigid plate 11 and the base 23 are respectively fixed to a package housing, which packages the optical module into an optical cable assembly, as shown in fig. 16.

The first rigid plate 11 has a fixing hole 11-3, as shown in fig. 1, for connection with a package housing to package the optical module into an optical cable assembly. After the optical module is packaged to form an optical cable assembly, the optical cable assembly is inserted, pulled out, installed and fastened outside the equipment panel.

The optical module of the embodiment is applied to communication among devices in the special field, realizes conversion from a copper cable to an optical cable by plugging and pulling the optical module into and out of an electric connector on a device panel on the basis of not changing the structural design of the original special device, ensures the reliability of application, and meets special working conditions such as vibration, impact, temperature change and the like.

Embodiment II,

The second embodiment proposes an optical module, which is different from the first embodiment in that: the optical connector of the optical fiber assembly in the second embodiment is an optical fiber array connector, and the optical fiber array connector and the optical chip of the chip assembly directly perform optical signal transmission without arranging a lens array.

In this embodiment, the optical fiber assembly 90 includes an optical connector 91, an optical fiber 92, and an optical interface 93, as shown in fig. 15; one end of the optical fiber 92 is connected with the optical connector 91, the other end of the optical fiber 92 is connected with the optical interface 93, the optical connector 91 is an optical fiber array connector, and the optical fiber array connector and an optical chip of the chip assembly directly perform optical signal transmission without arranging a lens array, so that the cost of the optical module is reduced, and the occupied space is reduced.

In the description of the above embodiments, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples. The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present utility model should be included in the scope of the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims

1. An optical module, comprising:

2. The light module of claim 1, wherein: the bottom end surface of the optical interface of the optical fiber assembly is connected with the top end surface of the first rigid plate; the optical module further comprises a first protective cover, the first protective cover is arranged on the optical interface, and the bottom end face of the first protective cover is in contact with and fixed with the top end face of the first rigid plate.

3. The light module of claim 1, wherein: the optical module further comprises a second protective cover; the second protective cover is covered on the chip assembly, and the bottom end face of the second protective cover is contacted with and fixed to the top end face of the first rigid plate.

4. The light module of claim 1, wherein: the top end surface and the bottom end surface of the first rigid plate are respectively provided with an annular connecting area; the shell comprises an upper shell and a lower shell;

5. The light module of claim 4, wherein: the first rigid plate is also provided with a mounting hole, and the upper shell, the first rigid plate and the lower shell are connected together through screws.

6. The light module of claim 1, wherein: the electrical connector is a micro rectangular electrical connector.

7. The light module of claim 1, wherein: the chip assembly comprises an electrical chip and an optical chip; the electric chip and the optical chip are adhered to the top end face of the first rigid plate by adopting heat conduction patch adhesive.

8. The light module of claim 1, wherein: two chip assemblies are arranged, two optical fiber assemblies are arranged in a matched mode;

9. The light module of any one of claims 1-8, wherein: the optical connector of the optical fiber assembly is a Mini-MT connector; the Mini-MT joint performs optical signal transmission with a lens array, and the lens array performs optical signal transmission with an optical chip of the chip assembly; the lens array is located within the sealed chamber.

10. The light module of any one of claims 1-8, wherein: the optical connector of the optical fiber assembly is an optical fiber array connector, and the optical fiber array connector and an optical chip of the chip assembly perform optical signal transmission.