CN113885145B

CN113885145B - Optical module

Info

Publication number: CN113885145B
Application number: CN202111137925.7A
Authority: CN
Inventors: 朱岩涛; 陈金磊; 司宝峰; 徐发部; 迟亚勋
Original assignee: Hisense Broadband Multimedia Technology Co Ltd
Current assignee: Hisense Broadband Multimedia Technology Co Ltd
Priority date: 2021-09-27
Filing date: 2021-09-27
Publication date: 2023-08-08
Anticipated expiration: 2041-09-27
Also published as: CN113885145A

Abstract

The application discloses optical module includes: the upper housing includes: the cover plate, and the first upper side plate and the second upper side plate which are arranged on two sides of the cover plate; the lower housing includes: the bottom plate is arranged at the opposite side of the cover plate; the first lower side plate is arranged on one side of the bottom plate and is covered with the first upper side plate; the second lower side plate is arranged on the other side of the bottom plate and is covered with the second upper side plate. And the unlocking device is attached to the outer wall of the first lower side plate and is in sliding connection with the first lower side plate. And the side cover plate is arranged at the outer side of the unlocking device and is connected with the first lower side plate. Through setting up the unblock ware in the lateral wall of optical module in this application, reduce the space occupation of optical module direction of height, improve space utilization, utilize the fixed unblock ware of side cap board.

Description

Optical module

Technical Field

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

Background

One of the key links of optical fiber communication is the mutual conversion of optical signals and electric signals. The optical fiber communication uses the optical signal carrying information to transmit in the information transmission equipment such as optical fiber/optical waveguide, and the information transmission with low cost and low loss can be realized by utilizing the passive transmission characteristic of the light in the optical fiber/optical waveguide; in order to establish an information connection between an information transmission device such as an optical fiber and an information processing device such as a computer, it is necessary to perform interconversion between an electric signal and an optical signal.

Currently, optical modules are an important component of modern optical communication networks, which provide Gbit high-speed data physical channels for the communication networks, while optical devices and optical receiving devices are the most central components in optical modules. With the rapid construction and upgrading of the current data center network, the data center has made demands on optical modules such as multi-wavelength channels, high speed, small size, low cost and the like.

Disclosure of Invention

The application provides an optical module to improve the communication rate of the optical module.

In order to solve the technical problems, the embodiment of the application discloses the following technical scheme:

the embodiment of the application discloses an optical module, including: an upper housing comprising:

the cover plate is provided with a plurality of grooves,

the first upper side plate is arranged on one side of the cover plate;

the second upper side plate is arranged on the other side of the cover plate and is positioned on the opposite side of the first upper side plate;

lower casing, with last casing lid closes and forms the parcel cavity, includes:

the bottom plate is arranged at the opposite side of the cover plate;

the first lower side plate is arranged on one side of the bottom plate and is covered with the first upper side plate;

the second lower side plate is arranged on the other side of the bottom plate and is covered with the second upper side plate;

The unlocking device is in sliding connection with the outer wall of the first lower side plate;

and the side cover plate is arranged at the outer side of the unlocking device and is connected with the first lower side plate.

Compared with the prior art, the application has the beneficial effects that:

the application provides an optical module, comprising: the upper housing includes: the cover plate, and the first upper side plate and the second upper side plate which are arranged on two sides of the cover plate; the lower housing includes: the bottom plate is arranged at the opposite side of the cover plate; the first lower side plate is arranged on one side of the bottom plate and is covered with the first upper side plate; the second lower side plate is arranged on the other side of the bottom plate and is covered with the second upper side plate. And the unlocking device is attached to the outer wall of the first lower side plate and is in sliding connection with the first lower side plate. And the side cover plate is arranged at the outer side of the unlocking device and is connected with the first lower side plate. Through setting up the unblock ware in the lateral wall of optical module in this application, reduce the space occupation of optical module direction of height, improve space utilization, utilize the fixed unblock ware of side cap board.

Drawings

In order to more clearly illustrate the technical solutions of the present application, the drawings that are needed in the embodiments will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.

FIG. 1 is a schematic diagram of the connection relationship of an optical communication terminal;

fig. 2 is a schematic diagram of an optical network unit structure;

fig. 3 is a schematic structural diagram of an optical module according to an embodiment of the present application;

fig. 4 is a schematic diagram of an exploded structure of an optical module according to an embodiment of the present application;

fig. 5 is a schematic diagram of a lower housing structure according to an embodiment of the present disclosure;

FIG. 6 is a schematic cross-sectional view of a lower housing according to an embodiment of the present disclosure;

fig. 7 is a schematic diagram of an upper housing structure according to an embodiment of the present disclosure;

fig. 8 is a schematic diagram of an upper housing structure according to an embodiment of the present disclosure;

fig. 9 is a schematic diagram of a lower housing structure according to an embodiment of the present disclosure;

FIG. 10 is a schematic cross-sectional view of an upper housing and a lower housing according to an embodiment of the present disclosure;

fig. 11 is a schematic diagram of a circuit board structure according to an embodiment of the present application;

fig. 12 is a schematic cross-sectional view of an optical module according to an embodiment of the present application;

fig. 13 is a schematic diagram of a lower housing structure according to an embodiment of the present disclosure;

FIG. 14 is a schematic partial cross-section of a lower housing provided in an embodiment of the present application;

fig. 15 is a schematic diagram of a claw structure according to an embodiment of the present application;

fig. 16 is a schematic partial structure diagram of an optical transceiver module according to an embodiment of the present application;

Fig. 17 is a schematic structural diagram of an optical transceiver, a claw and a lower housing according to an embodiment of the present disclosure;

fig. 18 is a schematic diagram of a local structure of an optical module according to an embodiment of the present application;

fig. 19 is a schematic view of a partial structure of a lower housing of an optical module according to an embodiment of the present application;

FIG. 20 is a schematic view of the partial structure of FIG. 19;

fig. 21 is a schematic diagram of an unlocking device according to an embodiment of the present application;

fig. 22 is a schematic diagram of a second unlocking device according to an embodiment of the present application;

fig. 23 is a schematic diagram of a side cover structure according to an embodiment of the present disclosure;

fig. 24 is a schematic diagram of a second side cover structure according to an embodiment of the present application.

Detailed Description

In order to better understand the technical solutions in the present disclosure, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only some embodiments of the present disclosure, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without inventive effort, based on the embodiments in this disclosure, shall fall within the scope of the present disclosure.

In the optical communication technology, light is used to carry information to be transmitted, and an optical signal carrying the information is transmitted to information processing equipment such as a computer through information transmission equipment such as an optical fiber or an optical waveguide, so as to complete information transmission. Since the optical signal has a passive transmission characteristic when transmitted through an optical fiber or an optical waveguide, low-cost and low-loss information transmission can be realized. Further, since a signal transmitted by an information transmission device such as an optical fiber or an optical waveguide is an optical signal and a signal that can be recognized and processed by an information processing device such as a computer is an electrical signal, it is necessary to perform mutual conversion between the electrical signal and the optical signal in order to establish an information connection between the information transmission device such as an optical fiber or an optical waveguide and the information processing device such as a computer.

The optical module realizes the function of interconversion between the optical signal and the electric signal in the technical field of optical fiber communication. The optical module comprises an optical port and an electric port, the optical module realizes optical communication with information transmission equipment such as optical fibers or optical waveguides through the optical port, realizes electric connection with an optical network terminal (for example, optical cat) through the electric port, and is mainly used for realizing power supply, I2C signal transmission, data signal transmission, grounding and the like; the optical network terminal transmits the electric signal to information processing equipment such as a computer through a network cable or wireless fidelity (Wi-Fi).

Fig. 1 is a diagram of an optical communication system connection relationship according to some embodiments. As shown in fig. 1, the optical communication system mainly includes a remote server 1000, a local information processing device 2000, an optical network terminal 100, an optical module 200, an optical fiber 101, 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. The optical fiber itself can support long-distance signal transmission, such as signal transmission of several kilometers (6-8 kilometers), on the basis of which, if a repeater is used, it is theoretically possible to realize ultra-long-distance transmission. Thus, in a typical optical communication system, the distance between the remote server 1000 and the optical network terminal 100 may typically reach several kilometers, tens of kilometers, or hundreds of kilometers.

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 local information processing apparatus 2000 may be any one or several of the following: routers, switches, computers, cell phones, tablet computers, televisions, etc.

The physical distance between the remote server 1000 and the optical network terminal 100 is greater than the physical distance between the local information processing apparatus 2000 and 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.

The optical module 200 includes an optical port and an electrical port. The optical port is configured to connect with the optical fiber 101 such that the optical module 200 establishes a bi-directional 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. For example, an optical signal from the optical fiber 101 is converted into an electrical signal by the optical module 200 and then input to the optical network terminal 100, and an electrical signal from the optical network terminal 100 is converted into an optical signal by the optical module 200 and input to the optical fiber 101.

The optical network terminal 100 includes a substantially rectangular parallelepiped housing (housing), and an optical module interface 102 and a network cable interface 104 provided on the housing. 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. By way of example, since the optical network terminal 100 transmits an electrical signal from the optical module 200 to the network cable 103 and transmits a signal from the network cable 103 to the optical module 200, the optical network terminal 100 can monitor the operation of the optical module 200 as a host computer of the optical module 200. 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.

The remote server 1000 establishes a bidirectional signal transmission channel with the local information processing device 2000 through the optical fiber 101, the optical module 200, the optical network terminal 100 and the network cable 103.

Fig. 2 is a block diagram of an optical network terminal according to some embodiments, and fig. 2 only shows a structure of the optical network terminal 100 related to the optical module 200 in order to clearly show a connection relationship between the optical module 200 and the optical network terminal 100. 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. In addition, the optical port of the optical module 200 is connected to the optical fiber 101, so that the optical module 200 establishes a bi-directional electrical signal connection with the optical fiber 101.

Fig. 3 is a diagram of an optical module structure provided according to some embodiments, and fig. 4 is an exploded structure diagram of an optical module according to some embodiments. As shown in fig. 3 and 4, the optical module 200 includes a housing, a circuit board 300 disposed in the housing, and an optical transceiver;

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.

In some embodiments, the lower housing 202 includes a bottom plate and two lower side plates disposed at both sides of the bottom plate and perpendicular to the bottom plate; the upper case 201 includes a cover plate, and two upper side plates disposed at two sides of the cover plate and perpendicular to the cover plate, and two side walls are combined with the two side plates to realize that the upper case 201 is covered on the lower case 202.

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. Illustratively, opening 204 is located at the end of light module 200 (left end of fig. 3) and opening 205 is also located at the end of light module 200 (right end of fig. 3). Alternatively, the opening 204 is located at the end of the light module 200, while the opening 205 is located at the side of the light 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 an upper computer (such as the optical network terminal 100); the opening 205 is an optical port configured to be connected to the external optical fiber 101, so that the optical fiber 101 is connected to an optical transceiver device inside 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, the optical transceiver and the like are conveniently installed in the shell, and the upper shell 201 and the lower shell 202 can form packaging protection for the devices. In addition, when devices such as the circuit board 300 are assembled, the positioning component, the heat dissipation component and the electromagnetic shielding component of the devices are conveniently arranged, and the automatic implementation and production are facilitated.

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 optical module 200 further includes an unlocking member 203 located on an outer wall of the housing, and the unlocking member 203 is configured to achieve a fixed connection between the optical module 200 and the host computer, or release the fixed connection between the optical module 200 and the host computer.

Illustratively, the unlocking member 203 is located on the outer walls of the two lower side plates of the lower housing 202, and includes a snap-in member that mates with the cage of the host computer (e.g., cage 106 of the optical network terminal 100). When the optical module 200 is inserted into the cage of the upper computer, the optical module 200 is fixed 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, so as to release the engagement relationship between the optical module 200 and the host computer, and thus the optical module 200 can be pulled out from the cage of the host computer.

The circuit board 300 includes circuit traces, electronic components (e.g., capacitors, resistors, transistors, MOS transistors), chips (e.g., MCU, laser driver chip, limiting amplifier chip, clock data recovery CDR, power management chip, data processing chip DSP), etc.

The circuit board 300 connects the above devices in the optical module 200 together according to a circuit design through circuit traces to realize functions of power supply, electric signal transmission, grounding, and the like.

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 electric connector in the upper computer cage, and in some embodiments disclosed in the application, a metal pin/golden finger is formed on one side end surface of the hard circuit board and used for being connected with the electric connector; these are all inconvenient to implement with flexible circuit boards.

A flexible circuit board is also used in part of the optical module; the flexible circuit board is generally matched with the hard circuit board for use, for example, the hard circuit board and the optical transceiver can be connected by adopting the flexible circuit board to supplement the hard circuit board.

For convenience of description, the application defines the orientation of the optical module in fig. 3, where the upper housing 201 is located in an upper direction, the lower housing is located in a lower direction, the optical port direction is left, and the electrical port direction is right. The direction of the optical port and the electric port is the length direction of the optical module, the up-down direction is the height direction of the optical module, and the other direction is the width direction of the optical module.

As shown in fig. 4, the optical transceiver module provided in the embodiment of the present application includes a first optical transceiver sub-module 400 and a second optical transceiver sub-module 500, where the first optical transceiver sub-module 400 and the second optical transceiver sub-module 500 are disposed in a vertical direction, and the first optical transceiver sub-module 400 is disposed above the second optical transceiver sub-module 500 and is disposed near the upper housing 201; the second optical transceiver sub-module 500 is disposed adjacent to the lower housing 202.

Optionally, the first optical transceiver sub-module 400 has a BOSA structure, and the second optical transceiver sub-module 500 has a BOSA structure. One end of the first optical transceiver sub-module 400 is connected to the first optical fiber adapter 600, and the other end is provided with the first circuit board 301. One end of the second optical transceiver sub-module 500 is connected to the second optical fiber adapter 700, and the other end is provided with a second circuit board 302. The first circuit board 301 is suspended above the second circuit board 302, and a flexible circuit board is arranged between the first circuit board 301 and the second circuit board 302, so as to realize electrical connection between the first circuit board 301 and the second circuit board 302. The other end of the second circuit board 302 is provided with a golden finger, which is positioned at the electric port and is connected with the upper computer to realize the electric connection with the upper computer.

The unlocking member 203 includes: the unlocking device 2031 and the side cover plate 2032, wherein the unlocking device 2031 is connected with one side outer wall of the lower shell 202, a chute is arranged on the outer wall of the lower shell 202, the unlocking device 2031 is movably connected along the chute, and the side cover plate 2032 is covered on the unlocking device 2031 and is fixed with the outer part of the lower shell.

The optical module 200 is further provided with: jaws 800 for securing a fiber optic adapter. The pawl 800 includes: the optical fiber connector comprises a clamping plate and four clamping arms, wherein a first through hole and a second through hole are formed in the clamping plate, and one end of the first optical fiber adapter 600 penetrates through the first through hole and is connected with a first external optical fiber. One end of the second fiber optic adapter 700 is connected to a second external optical fiber through the second through hole. The first through hole is arranged above the second through hole, the two sides of the first through hole are symmetrically provided with a first clamping arm and a second clamping arm, and the two sides of the second through hole are symmetrically provided with a third clamping arm and a fourth clamping arm.

In the embodiment of the present application, the lower housing 202 includes: the first lower side plate and the second lower side plate are positioned on two sides of the bottom plate and are perpendicular to the bottom plate; the upper case 201 includes: the cover plate, and the first upper side plate and the second upper side plate which are arranged on two sides of the cover plate and perpendicular to the cover plate are combined by the two upper side plates and the two lower side plates, so that the upper shell 201 is covered on the lower shell 202.

In some embodiments of the present application, the unlocking member 203 is disposed on an outer surface of one of the lower side plates, and is connected to the surface of the lower side plate. In order to realize the connection between the unlocking component 203 and the lower shell, a side cover plate is further arranged and is clamped with the lower side wall for fixing the unlocking component 203.

The first optical transceiver sub-module 400 and the second optical transceiver sub-module 500 that set up from top to bottom in this application occupy the space of great upper and lower direction, cooperate the setting of two optical transceiver sub-modules, go up casing 201 and lower casing 202 and be the ladder setting, improve space utilization.

Fig. 5 is a schematic diagram of a lower housing structure provided in an embodiment of the present application, fig. 6 is a schematic diagram of a cross section of a lower housing provided in an embodiment of the present application, as shown in fig. 5 and fig. 6, in an embodiment of the present application, the lower housing 202 includes: the bottom plate 2023, and a first lower side plate 2021 and a second lower side plate 2022 provided on both sides of the bottom plate 2023 and perpendicular to the bottom plate 2023.

The inner wall of the lower shell bottom plate 2023 is arranged in a step mode and comprises a first sub-bottom plate 20231, a second sub-bottom plate 20232 and a third sub-bottom plate 20233 which are sequentially connected, wherein one end of the first sub-bottom plate 20231 is arranged at a position close to a light opening, the other end of the first sub-bottom plate is connected with one end of the second sub-bottom plate 20232, the other end of the second sub-bottom plate 20232 is connected with the third sub-bottom plate 20233, the second sub-bottom plate 20232 is perpendicular to the first sub-bottom plate 20231, and the third sub-bottom plate 20233 is perpendicular to the second sub-bottom plate 20232. The third sub-floor 20233 is raised toward the interior of the enclosure cavity relative to the first sub-floor 20231.

A first support plate 2041 is disposed between the first lower side plate 2021 and the second lower side plate 2022, parallel to the bottom plate 2023, and at one ends of the heads of the first side plate and the second side plate. One end of the first support plate 2041 is perpendicular to the first side plate, and the other end is perpendicular to the second side plate and is located in the middle of the height direction of the first side plate.

A second support plate 2042 is further disposed between the first lower side plate 2021 and the second lower side plate 2022, parallel to the bottom plate 2023, and located at one end of the head portion of the first lower side plate 2021 and the second lower side plate 2022. One end of the first support plate 2041 is disposed perpendicular to the first lower side plate 2021, and the other end is disposed perpendicular to the second lower side plate 2022, and is located at the top of the first lower side plate 2021 and the second lower side plate 2022.

The second support plate 2042, the first lower side plate 2021, the bottom plate 2023 and the second lower side plate 2022 enclose an optical port, and an external optical fiber passes through the optical port to enter the interior of the package cavity and is connected with the fiber adapter. The first external fiber optic connector extends between the first support plate 2041 and the second support plate 2042 to connect with the first fiber optic adapter 600, and the second external fiber optic connector extends between the second support plate 2042 and the bottom plate 2023 to connect with the second fiber optic adapter 700. The first support plate 2041 achieves fixation and physical separation of the first and second external optical fibers, and increases optical path stability.

Fig. 7 is a schematic diagram of an upper housing provided in an embodiment of the present application, and fig. 8 is a schematic diagram of a second upper housing provided in an embodiment of the present application. Fig. 8 is a schematic view of the flip direction of fig. 7. Fig. 8 is a schematic cross-sectional view of an upper housing according to an embodiment of the present disclosure. As shown in fig. 7 and 8, the upper case 201 includes: the cover plate 2013, and the first upper side plate 2011 and the second upper side plate 2012, which are located at two sides of the cover plate 2013 and are perpendicular to the cover plate 2013, are combined by two upper side plates and two lower side plates, so as to realize that the upper casing 201 is covered on the lower casing 202.

The upper surface of the side plate adopts a step-type arrangement and comprises three step surfaces with different heights. A second support plate 2042 is arranged between the upper shell 201 and the lower shell 202, and one end of the second support plate 2042 is connected with a side cover plate of the upper shell 201 to form a wrapping cavity.

Specifically, fig. 9 is a schematic diagram of a lower housing structure provided in the embodiment of the present application, and fig. 10 is a schematic diagram of a cross-sectional structure of an upper housing and a lower housing provided in the embodiment of the present application. As shown in the drawing, the upper surface of the first lower side plate 2021 is provided in a stepwise manner, including: the heights of the first sub lower side plate 20211, the second sub lower side plate 20212, and the third sub lower side plate 20123 decrease in order. Wherein, the distance between the connection mesa of the second sub-lower side plate 20212 and the third sub-lower side plate 20123 and the second sub-lower bottom plate 2023 is identical.

The upper surface of the second lower side plate 2022 is arranged in a step manner, including: the heights of the fourth sub-lower side plate 20221, the fifth sub-lower side plate 20222, and the sixth sub-lower side plate 20223 decrease in order. Wherein, the distance between the connection surface of the fifth sub-lower side plate 20222 and the sixth sub-lower side plate 20223 and the distance between the second sub-lower bottom plate 2023 and the light port end is the same.

Correspondingly, the cover plate 2013 is arranged in a stepped manner and comprises a first sub-cover plate 20131, a second sub-cover plate 20132 and a third sub-cover plate 20133 which are sequentially connected, wherein one end of the first sub-cover plate 20131 is arranged at a position close to an optical port, the other end of the first sub-cover plate is connected with one end of the second sub-cover plate 201320132, the other end of the second sub-cover plate 20132 is connected with the third sub-cover plate 20133, the second sub-cover plate 20132 is vertically arranged with the first sub-cover plate 20131, and the third sub-cover plate 20133 is vertically arranged with the second sub-cover plate 20132. The third sub-cover 20133 protrudes toward the inside of the packing cavity with respect to the first sub-cover 20131.

In the embodiment of the present application, the distance from the second sub-bottom plate 20232 to the optical port is consistent with the distance from the second sub-cover plate 20132 to the optical port, that is, the second sub-bottom plate 20232 and the second sub-cover plate 20132 are located in the same plane.

One end of the first sub-bottom plate 20231 abuts against one side of the second support plate 2042, and the upper surface of the second support plate 2042 is flush with the upper surface of the first sub-bottom plate 20131, so as to seal the enclosure.

The first upper side plate 2011 is disposed on one side of the first sub-cover 20131, and after being covered, the first upper side plate 2011 is connected to the second sub-lower side plate 20212.

The second upper side plate 2012 is disposed on the first sub-cover plate 20131 and opposite to the first upper side plate 2011, and is connected to the second sub-lower side plate 20212 after being covered.

In the embodiment of the application, the upper shell 201 and the lower shell 202 are glued together, so that the connection tightness is improved.

In the embodiment of the present application, the length of the third sub-bottom plate 20233 is smaller than that of the third sub-cover plate 20133, and the tail portion of the third sub-bottom plate 20233 is provided with a first isolation protrusion 20234, and an upward protrusion for realizing electromagnetic shielding at the electric port.

The upper case 201 is provided with a first isolation plate 2014, a circuit board through hole is disposed between the lower surface of the third sub-cover 20133 and the first isolation protrusion 20234 of the first isolation protrusion 20234, and one end of the second circuit board 302 passes through the circuit board through hole to be connected with an upper computer. The first isolation plate 2014 and the first isolation protrusion 20234 block the interior of the package cavity as much as possible, so as to realize electromagnetic shielding at the electric port of the optical module.

The inner wall of the first lower side plate 2021 is further provided with a first limiting portion 20214, which is connected to one end of the first isolation plate 2014. The inner wall of the second lower side plate 2022 is further provided with a second limiting portion 20224, which is connected to the other end of the first isolation plate 2014. The first isolation plate 2014 is connected with the second limiting part 20224 and the first limiting part 20214, so that positioning between the upper shell 201 and the lower shell 202 is realized, and electromagnetic shielding at an electric port of the optical module is realized.

Specifically, the first limiting portion 20214 is located on the inner wall of the third lower side plate, and the second limiting portion is disposed on the inner wall of the sixth lower side plate.

Optionally, the upper housing 201 is further provided with a first limiting plate 2015 and a second limiting plate 2016, the first limiting plate 2015, the second limiting plate 2016 and the third sub-cover plate 20133 are vertically arranged, the side edge of the first limiting plate 2015 is close to the inner wall of the third sub-lower side plate 20123, the side plate of the second limiting plate 2016 is close to the first limiting part 20214, and the other side of the second limiting plate 2016 is in limiting fixation with the first circuit board 301. The side edge of the second limiting plate 2016 is close to the inner wall of the sixth sub-lower side plate 20223, the side plate of the second limiting plate 2016 is close to the second limiting portion 20224, and the other side of the second limiting plate 2016 forms limiting fixation on the first circuit board 301.

As shown in fig. 10, the first isolation plate 2014 is connected to a first side of the second spacing portion 20224, the second spacing plate 2016 is connected to a first side of the second spacing portion 20224, and the first side and the second side of the second spacing portion 20224 are adjacent.

Fig. 11 is a schematic diagram of a circuit board structure provided in an embodiment of the present application, and fig. 12 is a schematic cross-sectional view of an optical module provided in an embodiment of the present application. As shown in fig. 11 and 12, the first optical transceiver sub-module 400 and the second optical transceiver sub-module 500 are disposed in a vertical direction, and the first optical transceiver sub-module 400 is disposed above the second optical transceiver sub-module 500 and is disposed close to the upper case 201; the second optical transceiver sub-module 500 is disposed adjacent to the lower housing 202.

Specifically, one end of the first circuit board 301 is provided with a first avoiding portion 3011 and a second avoiding portion 3012, the second circuit board 302 is provided with a third avoiding portion 3021 and a fourth avoiding portion, the first avoiding portion 3011 and the third avoiding portion 3021 are arranged on the same side, the second avoiding portion 3012 and the fourth avoiding portion are arranged on the other side, the distance between the first avoiding portion 3011 and the electric port is greater than the distance between the third avoiding portion 3021 and the electric port, and the distance between the second avoiding portion 3012 and the electric port is greater than the distance between the fourth avoiding portion and the electric port. The third avoiding portion 3021 is connected to the first limiting portion 20214, and the fourth avoiding portion is connected to the second limiting portion 20224, so that positioning of the second circuit board 302 in the longitudinal direction is achieved.

The third avoiding portion 3021 is connected to one side of the first limiting plate 2015, and the other side of the first limiting plate 2015 is connected to the first partition plate 2014; the fourth avoidance portion is connected to one side of the second limiting plate 2016, and the other side of the second limiting plate 2016 is connected to the first spacer 2014; further enhancing the electromagnetic shielding effect to the electric port direction.

In some embodiments of the present application, the first isolation plate 2014 is disposed perpendicular to the cover plate 2013, and the first isolation protrusion 20234 has an upper surface of the first isolation protrusion 20234 located within a projection of a lower surface of the first isolation plate 2014 on the bottom plate 2023.

The lower housing 202 is further provided with a lower electric opening baffle 2024, which is disposed at the tail of the lower housing 202, and one end of which is connected with the first lower side plate 2021, and the other end of which is connected with the second lower side plate 2022, so as to form a shielding for the electric opening. Optionally, the upper surface of the lower electric port baffle 2024 protrudes from the upper surface of the first lower side plate 2021, and one end of the third sub-cover 20133 abuts against one side of the electric port baffle to form a seal.

Specifically, the lower electric port baffle 2024 is disposed between the first sub-lower side plate 20211 and the second sub-lower side plate 20212, and the first circuit board 301 is disposed on one side of the electric port baffle, and an orthographic projection of the first circuit board to the electric port direction is located on the electric port baffle.

The inner wall of the first sub-bottom plate 20231 is provided with a first shielding baffle group 206, where the first shielding baffle group 206 is perpendicular to the bottom plate 2023 and is disposed along the width direction of the optical module, so as to realize electromagnetic shielding of the first shielding baffle group 206 in the longitudinal direction, the transverse direction and other directions along the electrical port direction of the optical module, and ensure the shielding effect of the first shielding baffle group 206 at the electrical port of the optical module.

The second circuit board 302 is disposed above the first isolation board 2014, and the first shielding baffle set 206 is disposed adjacent to the second sub-bottom board 20232, and includes a plurality of first isolation boards 2014, and a first space is provided between each isolation board, so as to improve shielding effect.

The inner wall of the first sub-cover plate 20131 is provided with a second shielding baffle group 207, wherein the second shielding baffle group 207 is perpendicular to the bottom plate 2023 and is arranged along the width direction of the optical module, so that electromagnetic shielding of the second shielding baffle group 207 in the longitudinal direction, the transverse direction and the like in the electric opening direction of the optical module is realized, and the shielding effect of the second shielding baffle group 207 at the electric opening position of the optical module is ensured.

The first optical transceiver sub-module and the second optical transceiver sub-module are arranged between the first sub-base plate and the first sub-cover plate, and the first circuit board and the second circuit board are arranged between the third sub-base plate and the third sub-cover plate.

Optionally, the number of shielding plates of the first shielding baffle group 206 is identical to that of the second shielding baffle group 207, and the positions are in one-to-one correspondence.

In order to realize shielding at the optical port of the optical module, the head of the lower housing 202 is provided with a fixed blocking arm 2026, which is connected with the optical fiber adapter to realize electromagnetic shielding at the optical port.

The inner wall of the first lower side plate 2021 is further provided with a second shielding protrusion 20215, which is located on the first side blocking arm 20262 side and is disposed on the side close to the light opening. Alternatively, the surface of the second shielding protrusion 20215 is provided in a circular arc shape, and the protrusion height of the second shielding protrusion 20215 increases gradually in the light-port-to-electrical-port direction. The inner wall of the second lower side plate 2022 is further provided with a third shielding protrusion 20225, which is located on the second side blocking arm 20263 side and is disposed on the side close to the light opening. Optionally, the surface of the third shielding protrusion 20225 is in a circular arc shape, and the protrusion height of the third shielding protrusion 20225 increases gradually along the direction from the light port to the electrical port.

Fig. 13 is a schematic diagram of a lower housing structure according to an embodiment of the present application. Fig. 14 is a schematic partial cross-section of a lower housing provided in an embodiment of the present application. Fig. 14 is a partial schematic view of fig. 6. As shown in fig. 13 and 14, the bottom plate 2023 is provided with a bottom stopper arm 20261 protruding into the interior of the wrapping chamber. The first side baffle 20262 is provided on the inner surface of the first lower side plate, protrudes toward the inside of the wrapping cavity with respect to the inner surface of the first lower side plate, and one end thereof is connected to the bottom baffle 20261. The second lower side plate inner surface is provided with a second side stop arm 20263, protruding into the wrapping cavity relative to the second lower side plate inner surface, one end of which is connected to the bottom stop arm 20261.

Optionally, the first side blocking arm 20262 is disposed on an inner wall of the second sub-lower side plate, and the second side blocking arm 20263 is disposed on an inner wall of the fourth sub-lower side plate.

The upper surface of the bottom baffle arm 20261 is arc-shaped and matches with the shape of the second optical fiber adapter 700, so that stability between the second optical fiber adapter 700 and the bottom plate 2023 is enhanced, and shielding effect at the light opening is enhanced.

The first fiber optic adapter 600 and the second fiber optic adapter 700 are clamped between the first side stop arm 20262 and the second side stop arm 20263, and specifically, the first fiber optic adapter 600 includes: the first mounting part 601 and the second mounting part 602, and the first mounting part 601 and the second mounting part 602 protrude from the outer wall of the optical fiber adapter. A first clamping groove 603 is formed between the first mounting part 601 and the second mounting part 602, the first side blocking arm 20262 is embedded into one side of the first clamping groove 603, and the second side blocking arm 20263 is embedded into the other side of the first clamping groove 603, so that the second optical fiber adapter 700 is fixed. The second fiber optic adapter 700 includes: the third mounting part 701 and the fourth mounting part 702, and the third mounting part 701 and the fourth mounting part 702 protrude from the outer wall of the optical fiber adapter. A second clamping groove 703 is formed between the third mounting portion 701 and the fourth mounting portion 702, the first side blocking arm 20262 is embedded in one side of the second clamping groove 703, and the second side blocking arm 20263 is embedded in the other side of the second clamping groove 703, so as to fix the second optical fiber adapter 700. At the same time, bottom stop arm 20261 is inserted into second clamping groove 703, supporting and securing second fiber optic adapter 700.

In order to further enhance electromagnetic shielding at the light opening, the inner wall of the first lower side plate 2021 is further provided with a second shielding protrusion 20215, which is located on the side of the first side blocking arm 20262 and is located on the side close to the light opening. Alternatively, the surface of the second shielding protrusion 20215 is provided in a circular arc shape, and the protrusion height of the second shielding protrusion 20215 increases gradually in the light-port-to-electrical-port direction. The inner wall of the second lower side plate 2022 is further provided with a third shielding protrusion 20225, which is located on the second side blocking arm 20263 side and is disposed on the side close to the light opening. Optionally, the surface of the third shielding protrusion 20225 is in a circular arc shape, and the protrusion height of the third shielding protrusion 20225 increases gradually along the direction from the light port to the electrical port.

The upper surface of the lower side plate adopts a step-type arrangement and comprises three step surfaces with different heights. A second support plate 2042 is disposed between the upper housing 201 and the lower housing 202, and one end of the second support plate 2042 is connected with a cover plate 2013 of the upper housing 201 to form a wrapping cavity.

Fig. 15 is a schematic diagram of a claw structure according to an embodiment of the present application. In combination with fig. 15, a claw 800 is also provided for securing the first fiber optic adapter 600, the second fiber optic adapter 700 and the lower housing 202. The pawl 800 includes: the card 810 and four card arms, wherein the card 810 is provided with a first through hole 811 and a second through hole 812, and one end of the first optical fiber adapter 600 passes through the first through hole 811 to be connected with a first external optical fiber. One end of the second fiber optic adapter 700 is connected to a second external optical fiber through the second through hole 812. The first through hole 811 is disposed above the second through hole 812, the first clamping arm 820 and the second clamping arm 830 are symmetrically disposed on two sides of the first through hole 811, and the third clamping arm 840 and the fourth clamping arm 850 are symmetrically disposed on two sides of the second through hole 812.

The head of the lower housing 202 is provided with a jaw mounting groove, and the clamping plate 810 is embedded into the jaw mounting groove, so that the jaw 800 is limited by the jaw mounting groove. In this embodiment, the card 810 is further provided with a first fixing portion 813 and a second fixing portion 814, wherein the first fixing portion 813 is disposed on the outer sides of the first card arm 820 and the third card arm 840, and an edge of one side of the card 810 is recessed to form the first fixing portion 813. The second fastening portion 814 is disposed outside the second clamping arm 830 and the fourth clamping arm 850, and an edge of one side of the clamping plate 810 is recessed to form the first fastening portion 813. One of the clamping portions is symmetrically disposed at two ends of the clamping plate 810 with the second clamping portion 814.

The thickness of the first fastening portion 813 and the second fastening portion 814 is lower than that of the body of the clamping plate 810, so as to be fastened with the lower housing 202, thereby fixing the clamping claw 800 on the lower housing 202. The first fastening portion 813 and the second fastening portion 814 are embedded into the jaw mounting groove, so as to fix the lower housing 202 to the jaw 800.

Correspondingly, the jaw mounting groove comprises a first jaw mounting groove 20216 and a second jaw mounting groove 20226, wherein the first jaw mounting groove 20216 is arranged on the first lower side plate 2021 and is positioned between the first side blocking arm 20262 and the second shielding protrusion 20215, the first clamping portion 813 is embedded in the first jaw mounting groove 20216, and the second clamping portion 814 is embedded in the second jaw mounting groove 20226, so that the jaw 800 and the lower housing 202 are mounted and fixed.

The end of the first clamping arm 820 is provided with a guide portion 821, which is combined with the guide portion 831 of the second clamping arm 830 to form a guide area, so as to facilitate the insertion of the external optical fiber plug and the first optical fiber adapter 600.

The inner walls of the guide parts are sequentially protruded towards the inner walls from the light port direction to the electric port direction, so that the distance between the guide parts of the first clamping arms 820 and the inner walls of the second clamping arms 830 is gradually reduced from the outer side to the inner side, and the insertion of the external optical fibers is facilitated. The first clamping arm 820 is further provided with a clamping groove, the inner surface of the clamping groove is concave, and the external optical fiber structure is clamped and fixed. Alternatively, the clamping groove of the first clamping arm 820 is in an arc shape, and is enclosed with the clamping groove of the second clamping arm 830 to form an external optical fiber fixing area, and the specific shape can be set according to the shape of the connector of the external optical fiber.

The bottom plate 2023 is provided with a bottom stopper arm 20261 protruding toward the inside of the wrapping chamber. Specifically, the bottom blocking arm 20261 is disposed on the first sub-bottom plate 20231. The first sidewall inner surface is provided with a first side stop arm 20262, protruding toward the interior of the wrapping cavity with respect to the inner surface of the first sidewall, one end of which is connected to the bottom stop arm 20261. The second lower side plate inner surface is provided with a second side stop arm 20263, protruding into the wrapping cavity relative to the second lower side plate inner surface, one end of which is connected to the bottom stop arm 20261. Optionally, to facilitate the installation of the claw 800 and the lower housing 202, a surface of the bottom blocking arm 20261 near the side of the opening is disposed perpendicular to the first sidewall. The surface of the first side stopper arm 20262 on the side close to the entrance is perpendicular to the bottom plate 2023. The surface of the second side stopper arm 20263 on the side close to the entrance is perpendicular to the bottom plate 2023.

In some embodiments of the present application, the first side stop arm 20262 occupies a portion of the height direction of the first side wall, or the first side stop arm 20262 extends through the entire height direction of the first lower side plate, i.e., the other end of the first side stop arm 20262 is flush with the upper surface of the first lower side plate.

In some embodiments of the present application, the second side stop arm 20263 occupies a portion of the height direction of the second lower side plate, or the second side stop arm 20263 extends through the entire height direction of the second lower side plate, i.e., the other end of the second side stop arm 20263 is flush with the upper surface of the second lower side plate.

In some embodiments of the present application, the sides of the first side stop arm 20262, the second side stop arm 20263, and the bottom stop arm 20261 facing the light port are on the same plane. The first side stop arm 20262, the second side stop arm 20263, and the bottom stop arm 20261 combine to form a catch plate stop arm.

The upper surface of the bottom blocking arm 20261 is arc-shaped, and matches with the shape of the second optical fiber adapter 700, so that the stability between the second optical fiber adapter 700 and the bottom plate 2023 is enhanced.

Fig. 16 is a schematic partial structure of an optical transceiver module provided in an embodiment of the present application, and fig. 17 is a schematic structural diagram of an optical transceiver device, a claw, and a lower housing provided in an embodiment of the present application. As shown in connection with fig. 16 and 17, the first fiber optic adapter 600 includes: the first mounting part 601 and the second mounting part 602, and the first mounting part 601 and the second mounting part 602 protrude from the outer wall of the optical fiber adapter. A first clamping groove 603 is formed between the first mounting portion 601 and the second mounting portion 602, the first side blocking arm 20262 is embedded into one side of the first clamping groove 603, and the second side blocking arm 20263 is embedded into the other side of the first clamping groove 603, so that the first optical fiber adapter 600 is fixed. The second fiber optic adapter 700 includes: the third mounting part 701 and the fourth mounting part 702, and the third mounting part 701 and the fourth mounting part 702 protrude from the outer wall of the optical fiber adapter. A second clamping groove 703 is formed between the third mounting portion 701 and the fourth mounting portion 702, the first side blocking arm 20262 is embedded in one side of the second clamping groove 703, and the second side blocking arm 20263 is embedded in the other side of the second clamping groove 703, so as to fix the second optical fiber adapter 700. At the same time, bottom stop arm 20261 is inserted into second clamping groove 703, supporting and securing second fiber optic adapter 700.

In the assembly process, first fiber optic adapter 600 is first connected to first through hole 811, and second fiber optic adapter 700 is connected to second through hole 812, thereby realizing first fiber optic adapter 600. The second fiber optic adapter 700 is fixed with the claw 800, then the claw 800 is inserted into the claw mounting groove, in the process, the first side blocking arm 20262 and the second side blocking arm 20263 are inserted into the first clamping groove 603 and the second clamping groove 703, and are inserted and connected from top to bottom until the bottom blocking arm 20261 is connected and inserted into the second clamping groove 703, so that positioning and mounting are realized. After the installation, the bottom blocking arm 20261 is connected and inserted into the second clamping groove 703, so that the lower shell 202 is fixed to the lower side surface of the second optical fiber adapter 700. The surface of the bottom blocking arm 20261 is in a circular arc shape, and is matched with the second clamping groove 703 in size, so that the connection stability is improved.

The first clamping arm 820 is disposed between the second shielding protrusion 20215 and the first optical fiber adapter 600, and a certain gap exists between the first clamping arm 820 and the first optical fiber adapter 600, and the size of the gap gradually decreases from the optical port to the electrical port. The second clamping arm 830 is disposed between the third shielding protrusion 20225 and the first optical fiber adapter 600, and a certain gap exists between the third clamping arm 840 and the first optical fiber adapter 600, and the size of the gap gradually decreases from the optical port to the electrical port.

The third clamping arm 840 is disposed between the second shielding protrusion 20215 and the second optical fiber adapter 700, and a certain gap exists between the third clamping arm 840 and the second optical fiber adapter 700, and the size of the gap gradually decreases from the optical port to the electrical port. The fourth clamping arm 850 is disposed between the third shielding protrusion 20225 and the first optical fiber adapter 600, and a certain gap exists between the fourth clamping arm 850 and the first optical fiber adapter 600, and the size of the gap is gradually reduced from the optical port to the electrical port, so that the assembly is convenient.

During installation, the clamping arms and the lower shell 202 can be utilized to clamp the clamping jaws 800 by a tool or a person, and the clamping jaws 800 are inserted into the clamping jaw installation grooves, so that the assembly is convenient.

The thickness of the first lower side plate is greater than that of the second lower side plate. The chute is arranged on the outer wall of the first lower side plate.

Fig. 18 is a schematic partial structure of an optical module provided in an embodiment of the present application, and in some embodiments of the present application, an unlocking component 203 includes: the unlocking device 2031 and the side cover plate 2032, the unlocking device 2031 is connected with the outer wall of the first lower side plate 2021, the outer wall of the first lower side plate 2021 is provided with a sliding groove 208, the unlocking device 2031 is movably connected along the sliding groove 208, and the side cover plate 2032 is covered on the outer parts of the unlocking device 2031 and the first lower side plate and is fixed with the first lower side plate 2021. One end of the chute 208 is provided with an unlocking inclined portion 209 and an engaging member 210. The unlocking device 2031 includes: handle, spring and unlocking piece.

Fig. 19 is a schematic view of a partial structure of a lower housing of an optical module according to an embodiment of the present application, and fig. 20 is a schematic view of a partial structure of fig. 19. As shown in fig. 19 and 20, specifically, the chute 208 is disposed on the first lower side plate 2021, and is formed by recessing an outer surface of the first lower side plate 2021. Unlocking inclined part 209 sets up in the one end of spout 208, includes: a first protrusion is provided between the first groove 2091 and the second groove 2092, and between the first groove 2091 and the second groove 2092. The first groove 2091 is located between the two inclined surfaces, wherein a first end of the first inclined surface 2091 is connected to the chute 208, a second end is connected to the second inclined surface 2091, and the first inclined surface 2091 is recessed inward along a direction from the first end to the second end. The first end of the second inclined surface 2091 is connected to the first inclined surface 2091, the second end is connected to the second groove 2092, and the second inclined surface 2091 is externally convex in the first end to second end direction. The first inclined surface 2091 and the second inclined surface 2091 are connected to form a first groove 2091.

In the embodiment of the present application, the chute 208 is provided on the first sub-lower side plate 20211 and the second sub-lower side plate 20212, and the unlocking sloped portion is provided on the third sub-lower side plate 20123.

The second groove 2092 includes: the third inclined surface 20921, the fourth transition surface 20922 and the fifth inclined surface 20923 which are sequentially connected, the first end of the third inclined surface 20921 is connected to the second end of the second inclined surface 20112, the first end of the third inclined surface 20921 is connected to the fourth inclined surface, and the third inclined surface 20921 is recessed inward in the first end-to-second end direction. The second inclined surface 2092 connects with the third inclined surface 20921 to form a first projection 2093.

The first end of the fourth transition surface 20922 is connected to the second end of the third inclined surface 20921, the second end of the fourth transition surface 20922 is connected to the second end of the fifth inclined surface 20923, and the second end of the fifth inclined surface 20923 is connected to the outer surface of the first lower side plate 2021.

In the present application, the depth of the second groove 2092 is greater than the depth of the first groove 2091, i.e., the vertical distance of the second groove 2092 from the outer surface of the first lower side plate 2021 is greater than the vertical distance of the first groove 2091 from the outer surface of the first lower side plate 2021.

The engaging member 210 is engaged with a host computer. Specifically, the engaging member 210 may be disposed in the second groove 2092, or may be directly disposed on the outer surface of the lower housing 202. The shape of the engaging member 210 is matched with the shape of the upper computer buckle, and may be specifically triangular as shown in the figure, and is disposed in the second groove 2092. The engaging member 210 protrudes from the outer surface of the lower housing 202.

Fig. 21 is a schematic diagram of an unlocking device provided in an embodiment of the present application, and fig. 22 is a schematic diagram of a unlocking device provided in an embodiment of the present application. Fig. 21 and 22 show the unlocker from different angles. The unlocking device 2031 includes: a handle 20311, a spring (not shown), and an unlocking member 20314. The handle 20311 is attached to the outer surface of the lower case 202 with the unlocking piece 20314, and the side cover 2032 is provided on the outer surface of the unlocking piece 2031 for fixing the unlocking piece 2031.

One end of the handle is positioned between the lower shell 202 and the side cover 2032, and the other end extends out of the lower shell 202, so that the handle is convenient to pull, and one end of the unlocking piece is jacked up. The unlocking member 20314 includes: a first connection portion 201314 and a second raised portion 203142. The inner surface of the first connecting portion 201314 is matched with the first groove 2091, and the first connecting portion 201314 is attached to the outer surface of the first groove 2091. The second raised portion 203142 mates with the second groove 2092. The second lifting portion 203142 is hollowed out to provide a clip giving-out portion 20316, and the engaging member 210 is embedded in the clip giving-out portion.

When the handle is pulled towards the direction of the light port, the second lifting part 203142 moves along the third inclined surface 20921 of the second groove 2092, the bottom end of the second lifting part moves from the bottom of the second groove 2092 to the inside of the first groove 2091, the outer surface of the lifting part protrudes out of the outer surface of the lower shell 202, and an outward tension is formed on the claw of the upper computer, so that the claw is separated from the clamping part 210, the clamping part 210 slides off from the upper computer, and the connection between the upper computer and the light module is released.

One end of the handle is provided with a pull ring, so that the handle can be conveniently grasped. The annular pull ring is convenient to hold the pull ring and force. The other end of the pull ring is connected with a connecting rod 20312, and the connecting rod 20312 is matched with the chute 208 in size.

To prevent the unlocking device 2031 from slipping out between the lower case 202 and the side cover plate 2032, the unlocking device 2031 further includes: the clamping portion 20315 is provided on one side of the handle connecting rod 20312. The clamping portion 20315 may be in the same plane as the handle or may be at an angle to the handle. The surface of the lower shell 202 is provided with a connection limiting part 2081 which is communicated with the chute 208 and used for limiting and installing the clamping part 20315. And the size of the connection limiting portion 2081 in the length direction of the optical module is larger than the size of the clamping portion in the length direction of the optical module. The clip portion 20315 is movable relative to each other within the orientation of the connection limiter 2081.

When the handle is not pulled, the clamping portion 20315 is connected with the first end of the connection limiting portion 2081, wherein the first end of the connection limiting portion 2081 is the end close to the electric port. In the pulling process, the clamping connection part moves from the electric port to the optical port in the connection limiting part 2081 until the clamping connection part is connected with the second end of the connection limiting part 2081. At this time, the second lifting portion 203142 moves along the third inclined surface 20921 of the second groove 2092, the bottom end of the second lifting portion moves from the bottom of the second groove 2092 to the inside of the first groove 2091, the outer surface of the lifting portion protrudes out of the outer surface of the lower housing 202, and an outward tension is formed on the connection piece of the upper computer, so that the buckle and the engaging member 210 are separated, the engaging member 210 slides off from the upper computer, and the connection between the upper computer and the optical module is released.

Optionally, the clamping connection portion includes a first clamping connection portion and a second clamping connection portion, which are symmetrically disposed on opposite sides of the connecting rod 20312, and the connection limiting portion 2081 is correspondingly provided with a first connection limiting portion and a second connection limiting portion.

In order to realize the reset of the unlocking device 2031, a spring is further provided in the embodiment of the application. The connecting rod 20312 is provided with a spring mounting groove 20313, and the chute 208 is provided with a spring boss 2082 positioned within the spring mounting groove 20313. One end of the spring close to the notch is fixed with the spring bulge, and the other end is connected with one end of the spring mounting groove 20313. In the process of pulling the handle, the clamping and connecting part moves from the electric opening to the optical opening in the connecting and limiting part 2081 until the clamping and connecting part is connected with the second end of the connecting and limiting part 2081. At this time, the second lifting portion 203142 moves along the third inclined surface 20921 of the second groove 2092, the bottom end of the second lifting portion moves from the bottom of the second groove 2092 to the inside of the first groove 2091, the outer surface of the lifting portion protrudes out of the outer surface of the lower housing 202, and forms an outward tension on the claw of the upper computer, so that the claw is separated from the engaging member 210, the engaging member 210 slides off from the upper computer, and the connection between the upper computer and the optical module is released. One end of the spring mounting groove 20313 compresses the spring, and after the tension is removed, the spring pushes the connecting rod 20312 to move towards the electric port under the action of self elastic force, and the second lifting portion 203142 moves from the first groove 2091 to the second groove 2092.

Fig. 23 is a schematic diagram of a first side cover structure provided in an embodiment of the present application, and fig. 24 is a schematic diagram of a second side cover structure provided in an embodiment of the present application. Fig. 23 and 24 show the side cover plate from different angles. The side cover 2032 is attached to the outer surface of the lower housing 202 for securing the release 2031. Specifically, the side cover plate 2032 includes: a cover shell 20321, and a first shell plate 20322 and a second shell plate 20323 vertically disposed on both sides of the cover shell. The cover shell 20321 is attached to the outer surface of the first lower side plate 2021, the first shell 20322 is attached to the upper surface of the first lower side plate 2021, and the second shell 20323 is attached to the lower surface of the first lower side plate 2021. The unlocking member 20314 is exposed outside the side cover 2032, facilitating the mutual movement of the components during the pulling process.

Specifically, the chute 208 is located in the projection range of the cover shell 20321 on the first lower side plate 2021, and the chute 208 and the cover shell 20321 form a cavity, and the connecting rod 20312 of the unlocking device 2031 is located inside the cavity.

The first end of the first shell plate 20322 is not flush (lengthwise) with the first end of the cover shell 20321, and the second end of the first shell plate 20322 is not flush with the second end of the cover shell 20321. Wherein the second end of the first shell plate 20322 is oriented toward the electrical port.

The first shell plate 20322 is provided with: first catch 203221, second catch 203222, and third catch 203223. Wherein, there is a fifth avoidance portion 203227 between the first fastening portion 203221 and the second fastening portion, and a sixth avoidance portion 203228 is provided between the second fastening portion 203222 and the third fastening portion 203223. The distances between the first, second and third catching portions 203221, 203222, 203223 may be the same or different.

The distance from the edges of the first, second and third fastening parts 203221, 203222, 203223 to the cover shell 20321 is greater than the distance from the sixth and fifth avoiding parts 203228, 203227 to the cover shell 20321.

The first fastening portion 203221 is provided with a first fastening hole 203224, the second fastening portion 203222 is provided with a second fastening hole 203225, and the third fastening portion 203223 is provided with a third fastening hole 203226. The first lower side plate 2021 has a first engaging protrusion, a second engaging protrusion, and a third engaging protrusion on an upper surface thereof, and is engaged with the first shell plate 20322. Specifically, the first card is inserted into the first card hole 203224, the second card is inserted into the second card hole, and the third card is inserted into the third card hole.

After the first shell 20322 is fastened to the first fastening portion 203221, the upper surface of the first shell 203is a flat surface and is connected to the upper housing 201. In the embodiment of the present application, the first shell plate 20322 is disposed above the second sub-lower shell plate and between the upper case 201 and the second sub-lower shell plate.

The second shell plate 20323 is provided with: fourth card hole, fifth card hole and sixth card hole. Wherein: the prices between the fourth and fifth card holes and between the fifth and sixth card holes may be the same or different. The second shell plate 20323 is provided on the lower surface of the first lower side plate 2021. The lower surface of the first lower side plate 2021 is provided with a fourth engaging protrusion, a fifth engaging protrusion, and a sixth engaging protrusion, which are engaged with the second shell plate 20323. Specifically, the fourth card protrusion is embedded into the fourth card hole, the fifth card protrusion is embedded into the fifth card hole, and the sixth card protrusion is embedded into the sixth card hole.

In this embodiment, during installation, firstly, the unlocking device 2031 is installed inside the chute 208, the clamping portion is embedded into the connection limiting portion 2081, the first connecting portion 201314 is attached to the outer surface of the first groove 2091, the second lifting portion 203142 is attached to the outer surface of the second groove 2092, the clamping member 210 is embedded into the clamping member abdicating portion, and the spring is installed in the spring installation groove 20313. Then, the side cover 2032 is engaged with the lower case 202, thereby fixedly mounting the unlocking device 2031 to the lower case 202.

Since the foregoing embodiments are all described in other modes by reference to the above, the same parts are provided between different embodiments, and the same and similar parts are provided between the embodiments in the present specification. And will not be described in detail herein.

Finally, it should be noted that: the above embodiments are merely for illustrating the technical solution of the present disclosure, and are not limiting thereof; although the present disclosure 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 of the embodiments of the present disclosure.

It should be noted that in this specification, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a circuit structure, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such circuit structure, article, or apparatus. Without further limitation, the statement "comprises" or "comprising" a … … "does not exclude that an additional identical element is present in a circuit structure, article or apparatus that comprises the element.

Claims

1. An optical module, comprising: the upper housing includes:

the cover plate is provided with a plurality of grooves,

the first upper side plate is arranged on one side of the cover plate;

the bottom plate is arranged at the opposite side of the cover plate;

the unlocking device is attached to the outer wall of the first lower side plate and is connected with the first lower side plate in a sliding manner;

the side cover plate is arranged on the outer side of the unlocking device and is connected with the first lower side plate;

wherein the thickness of the first lower side plate is greater than the thickness of the second lower side plate;

the cover plates are arranged in a step-type manner, and the first sub-cover plate, the second sub-cover plate and the third sub-cover plate are sequentially connected, and the third sub-cover plate protrudes towards the inside of the wrapping cavity relative to the first sub-cover plate;

the bottom plates are arranged in a step mode and comprise a first sub-bottom plate, a second sub-bottom plate and a third sub-bottom plate which are connected; the third sub-bottom plate protrudes towards the inside of the wrapping cavity relative to the first sub-bottom plate.

2. The light module of claim 1 wherein the outer wall of the first lower side plate is provided with a chute, and the projection of the side cover plate on the first lower side plate covers the chute;

an unlocking inclined part is arranged at one end of the sliding groove;

the unlocking device comprises:

one end of the handle extends to the outer sides of the first lower side plate and the side cover plate, and the other end of the handle is arranged in the chute;

and one end of the unlocking piece is connected with the handle and is attached to the outer side of the unlocking inclined part.

3. The light module as recited in any one of claims 1 or 2, wherein the side cover plate comprises: the cover shell, and a first shell plate and a second shell plate which are vertically arranged at two sides of the cover shell;

the cover shell is attached to the outer wall of the first lower side plate, and the first shell plate is attached to the upper surface of the first lower side plate; the second shell plate is attached to the lower surface of the first lower side plate;

the first shell plate is arranged between the first lower side plate and the upper shell;

the first shell plate is provided with at least one buckling part, and the buckling part is provided with a clamping hole;

the surface of the first lower side plate is provided with at least one clamping protrusion, and the clamping protrusion is embedded into the clamping hole.

4. The light module of claim 2 wherein the first lower side panel comprises: the first sub lower side plate, the second sub lower side plate and the third sub lower side plate;

the first sub lower side plate is flush with the lower surface of the second sub lower side plate;

the width of the third sub lower side plate is smaller than that of the second sub lower side plate;

the sliding groove is arranged on the outer walls of the first sub lower side plate and the second sub lower side plate; the unlocking inclined part is arranged on the outer wall of the third sub lower side plate.

5. The light module of claim 2 further comprising a spring; a spring bulge is also arranged in the chute;

the unlocking device is provided with a spring mounting groove for accommodating the spring; the spring bulge is arranged in the spring mounting groove, and one end of the spring is connected with the spring bulge.

6. The optical module of claim 2, further comprising: the connecting limiting part is arranged at one side of the chute and is communicated with the chute;

the unlocking device further comprises: the connecting rod is arranged between the handle and the unlocking piece and is positioned in the chute; one side of the connecting rod is provided with a clamping connection part which is arranged in the connection limiting part;

The area of the connection limiting part is larger than that of the clamping part.

7. The light module of claim 2, wherein the unlocking bevel comprises: a first groove and a second groove; the first groove and the second groove are opposite to the outer surface of the first lower side plate and are recessed;

a first protrusion is arranged between the first groove and the second groove;

the unlocking piece comprises:

one end of the first connecting part is connected with the handle and is connected with the first groove in a matching way;

the second lifting part is connected with the other end of the first connecting part and is connected with the second groove in a matching way;

the depth of the second groove is greater than the depth of the first groove.

8. The light module of claim 7 wherein the first lower side panel further comprises: the clamping component is arranged in the middle of the second groove and is in clamping connection with the upper computer;

a clamping piece abdicating part is hollowed out in the middle of the second lifting part; one end of the clamping component is embedded into the clamping piece abdicating part.

9. The light module of claim 2 wherein the side cover plate comprises: the cover shell, and the first shell plate and the second shell plate which are vertically arranged at two sides of the cover shell;

The cover shell is attached to the outer surface of the first lower side plate;

the first shell plate is clamped with the upper surface of the first lower side plate;

the second shell plate is clamped with the lower surface of the first lower side plate.

10. The light module of claim 9 wherein the first housing plate is provided with a plurality of snap holes; the upper surface of the first lower side plate is provided with a plurality of clamping protrusions which are embedded into the clamping holes and used for connecting the side cover plate with the first lower side plate.