CN113885144B

CN113885144B - Optical module

Info

Publication number: CN113885144B
Application number: CN202111135877.8A
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: 2023-01-24
Anticipated expiration: 2041-09-27
Also published as: CN113885144A

Abstract

The application discloses optical module includes: the lower shell and the upper shell cover to form a wrapping cavity, and the circuit board is arranged inside the wrapping cavity. The lower casing includes: the cover plate is connected with a first upper side plate and a second upper side plate which are arranged on two sides of the cover plate; the upper housing includes: the bottom plate, the first lower side plate and the second lower side plate are arranged on two sides of the bottom plate. And the light receiving and transmitting secondary module is arranged in the wrapping cavity and is connected with one end of the circuit board. The inner wall of the bottom plate is provided with a first shielding baffle group, and the inner wall of the cover plate is provided with a second shielding baffle group. The first shielding baffle group and the second shielding baffle group form multiple reflection to the electromagnetic radiation of the optical module, and the electromagnetic radiation is weakened. One end of the bottom plate is provided with a first shielding bulge, and the cover plate is provided with a first isolation plate; set up the through-hole between first shielding arch and the first division board, the through-hole is passed to the one end of circuit board, forms the electromagnetic shield to internal circuit, has increased the electromagnetic shield effect of optical module, improves communication stability.

Description

Optical module

Technical Field

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

Background

One of the core links of optical fiber communication is the interconversion of optical and electrical signals. The optical fiber communication uses optical signals carrying information to transmit in information transmission equipment such as optical fibers/optical waveguides, and the information transmission with low cost and low loss can be realized by using the passive transmission characteristic of light in the optical fibers/optical waveguides; in order to establish information connection between information transmission devices such as optical fibers and optical waveguides and information processing devices such as computers, interconversion between electrical signals and optical signals is required.

At present, an optical module is an important component of a modern optical communication network, and provides a physical channel for Gbit high-speed data for the communication network, and an optical transmitter and an optical receiver are the most central components in the optical module. With the rapid construction and upgrading of the current data center network, the data center puts forward requirements on multiple wavelength channels, high speed, small size, low cost and the like for the optical module.

Disclosure of Invention

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

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

the embodiment of the application discloses an optical module, includes:

the upper shell comprises a cover plate, a first upper side plate and a second upper side plate, wherein the first upper side plate and the second upper side plate are arranged on two sides of the cover plate;

the lower shell is covered with the upper shell to form a wrapping cavity, and comprises a bottom plate, a first lower side plate and a second lower side plate, wherein the first lower side plate and the second lower side plate are arranged on two sides of the bottom plate;

the circuit board is arranged inside the packaging cavity;

the optical transceiving sub-module is arranged in the packaging cavity and is connected with one end of the circuit board;

one end of the bottom plate is provided with a first shielding bulge, and the cover plate is provided with a first isolation plate;

a first shielding baffle group is arranged on the inner wall of the bottom plate, and a second shielding baffle group is arranged on the inner wall of the cover plate;

a through hole is formed between the first shielding protrusion and the first isolation plate, and one end of the circuit board penetrates through the through hole.

This application is compared prior art's beneficial effect:

the application provides an optical module, including: the lower shell and the upper shell cover to form a wrapping cavity, and the circuit board is arranged inside the wrapping cavity. The lower case includes: the device comprises a cover plate, a first upper side plate and a second upper side plate, wherein the first upper side plate and the second upper side plate are arranged on two sides of the cover plate; the upper case includes: the bottom plate is arranged on the two sides of the bottom plate, and the first lower side plate and the second lower side plate are arranged on the two sides of the bottom plate. The light transceiving secondary module is arranged in the packaging cavity and is connected with one end of the circuit board. One end of the bottom plate is provided with a first shielding bulge, and the cover plate is provided with a first isolation plate; the inner wall of the bottom plate is provided with a first shielding baffle group, and the inner wall of the cover plate is provided with a second shielding baffle group. The first shielding baffle group and the second shielding baffle group form multiple reflection to the electromagnetic radiation of the optical module, and the electromagnetic radiation is weakened. A through hole is formed between the first shielding protrusion and the first isolation plate, and one end of the circuit board penetrates through the through hole. The first shielding baffle group and the second shielding baffle group form electromagnetic shielding for the optical transceiver sub-module, so that the electromagnetic shielding effect of the optical module is improved. The first shielding protrusion and the first isolation plate form electromagnetic shielding for the internal circuit, so that the electromagnetic shielding effect of the optical module is improved, and the communication stability is improved.

Drawings

In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

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

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

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

fig. 4 is an exploded schematic view of an optical module according to an embodiment of the present disclosure;

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

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

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

fig. 8 is a schematic structural diagram of a second upper housing according to an embodiment of the present application;

fig. 9 is a schematic view of a second lower housing structure provided in the embodiment of the present application;

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

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

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

fig. 13 is a schematic view of a third lower housing structure provided in the embodiment of the present application;

FIG. 14 is a partial cross-sectional illustration of a lower housing according to an embodiment of the present application;

FIG. 15 is a schematic view of a structure of a pawl according to an embodiment of the present disclosure;

fig. 16 is a partial structural schematic view of an optical transceiver module according to an embodiment of the present disclosure;

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 view of a partial structure of an optical module according to an embodiment of the present application;

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

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

FIG. 21 is a first structural diagram of an unlocking device according to an embodiment of the present disclosure;

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

fig. 23 is a first schematic view illustrating a side cover plate structure according to an embodiment of the present disclosure;

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

Detailed Description

In order to make those skilled in the art 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 drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present disclosure without making creative efforts shall fall within the protection 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 that the transmission of the information is completed. Because the optical signal has the passive transmission characteristic when being transmitted through the optical fiber or the optical waveguide, the information transmission with low cost and low loss 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 interconversion 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 electrical signal in the technical field of optical fiber communication. The optical module comprises an optical port and an electrical port, the optical module realizes optical communication with information transmission equipment such as optical fibers or optical waveguides and the like through the optical port, realizes electrical connection with an optical network terminal (such as an optical modem) through the electrical port, and the electrical connection 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 the information processing equipment such as a computer through a network cable or a wireless fidelity (Wi-Fi).

Fig. 1 is a diagram of optical communication system connections 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, for example, signal transmission of thousands of meters (6 kilometers to 8 kilometers), on which basis if a repeater is used, ultra-long-distance transmission can be theoretically achieved. Therefore, in a typical optical communication system, the distance between the remote server 1000 and the onu 100 may be 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 device 2000 may be any one or several of the following devices: router, switch, computer, cell-phone, panel computer, TV set 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 completed 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, so that the optical module 200 establishes a bidirectional optical signal connection with the optical fiber 101; the electrical port is configured to be accessed into the optical network terminal 100, so that the optical module 200 establishes a bidirectional electrical signal connection with the optical network terminal 100. The optical module 200 converts an optical signal and an electrical signal to each other, so that a connection is established between the optical fiber 101 and the optical network terminal 100. In an 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 housing (housing) having a substantially rectangular parallelepiped shape, 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 establishes a bidirectional electrical signal connection with the optical module 200; the network cable interface 104 is configured to access the network cable 103 such that the optical network terminal 100 establishes a bi-directional electrical signal connection with the network cable 103. The optical module 200 is connected to the network cable 103 via the optical network terminal 100. For example, 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, so that the optical network terminal 100 can monitor the operation of the optical module 200 as an upper computer of the optical module 200. The upper computer of the Optical module 200 may include an Optical Line Terminal (OLT) 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 structure diagram of an optical network terminal according to some embodiments, and fig. 2 only shows the structure of the optical module 200 of the optical network terminal 100 in order to clearly show the 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 projection such as a fin that increases a heat radiation area.

The optical module 200 is inserted into a cage 106 of the onu 100, the cage 106 holds the optical module 200, and heat generated by the optical module 200 is conducted to the cage 106 and then diffused by a heat sink 107. After the optical module 200 is inserted into the cage 106, an electrical port of the optical module 200 is connected to an electrical connector inside the cage 106, and the optical module 200 establishes a bidirectional electrical signal connection with the onu 100. Further, the optical port of the optical module 200 is connected to the optical fiber 101, and the optical module 200 establishes bidirectional electrical signal connection with the optical fiber 101.

Fig. 3 is a diagram of an optical module provided according to some embodiments, and fig. 4 is an exploded structural view 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 shell comprises an upper shell 201 and a lower shell 202, wherein the upper shell 201 is covered on the lower shell 202 to form the shell with two

openings

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

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 housing 201 includes a cover plate, and two upper side plates disposed on two sides of the cover plate and perpendicular to the cover plate, and is combined with the two side plates by two side walls to cover the upper housing 201 on the lower housing 202.

The direction of the connecting line of the two

openings

204 and 205 may be the same as the length direction of the optical module 200, or may not be the same as the length direction of the optical module 200. For example, the opening 204 is located at an end portion of the optical module 200 (left end in fig. 3), and the opening 205 is also located at an end portion of the optical module 200 (right end in fig. 3). Alternatively, the opening 204 is located at an end of the optical module 200, and the opening 205 is located at a side of the optical module 200. Wherein, the opening 204 is an electrical port, and the gold 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 receive an external optical fiber 101 so that the optical fiber 101 is connected to an optical transceiver inside the optical module 200.

The upper shell 201 and the lower shell 202 are combined in an assembling mode, so that devices such as the circuit board 300 and the optical transceiver device can be conveniently installed in the shells, and the upper shell 201 and the lower shell 202 can form packaging protection for the devices. In addition, when the devices such as the circuit board 300 are assembled, the positioning components, the heat dissipation components and the electromagnetic shielding components of the devices are convenient to arrange, and the automatic implementation production is facilitated.

In some embodiments, the upper housing 201 and the lower housing 202 are generally made of metal materials, which is beneficial to achieve electromagnetic shielding and heat dissipation.

In some embodiments, the optical module 200 further includes an unlocking component 203 located on an outer wall of a housing thereof, and the unlocking component 203 is configured to realize a fixed connection between the optical module 200 and an upper computer or release the fixed connection between the optical module 200 and the upper computer.

Illustratively, the unlocking members 203 are located on the outer walls of the two lower side plates of the lower housing 202, and include snap-fit members that mate with a cage of an upper computer (e.g., the 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 engaging member of the unlocking member 203; when the unlocking member 203 is pulled, the engaging member of the unlocking member 203 moves along with the unlocking member, and the connection relationship between the engaging member and the upper computer is changed, so that the engagement relationship between the optical module 200 and the upper computer is released, and the optical module 200 can be drawn out from the cage of the upper computer.

The circuit board 300 includes circuit traces, electronic components (such as capacitors, resistors, triodes, and MOS transistors), and chips (such as MCU, laser driver chip, amplitude limiting amplifier chip, clock data recovery CDR, power management chip, and data processing chip DSP).

The circuit board 300 connects the above devices in the optical module 200 together according to circuit design through circuit wiring, so as to implement functions of power supply, electrical signal transmission, grounding, and the like.

The circuit board 300 is generally a rigid circuit board, which can also perform a bearing function due to its relatively rigid material, for example, the rigid circuit board can stably bear a chip; the 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 the surface of the tail end on one side of the hard circuit board and is used for being connected with the electric connector; these are not easily implemented with flexible circuit boards.

Flexible circuit boards are also used in some optical modules; the flexible circuit board is generally used in combination with a rigid circuit board, for example, the rigid circuit board may be connected to the optical transceiver device by using the flexible circuit board as a supplement to the rigid circuit board.

For convenience of introduction, the present application is defined by 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 vertical 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 component provided in the embodiment of the present invention includes a first optical transceiver sub-module 400 and a second optical transceiver sub-module 500, wherein the first optical transceiver sub-module 400 and the second optical transceiver sub-module 500 are disposed in an up-and-down direction, and the first optical transceiver sub-module 400 is disposed above the second optical transceiver sub-module 500 and is close to the upper housing 201; the second rosa 500 is disposed adjacent to the lower housing 202.

Optionally, the first optical transceiving sub-module 400 has a BOSA structure, and the second optical transceiving sub-module 500 has a BOSA structure. One end of the first optical transceiver sub-assembly 400 is connected to the first optical fiber adapter 600, and the other end is provided with a first circuit board 301. One end of the second optical transceiver sub-assembly 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 disposed above the second circuit board 302 in a suspended manner, and a flexible circuit board is disposed between the first circuit board 301 and the second circuit board 302 to electrically connect the first circuit board 301 and the second circuit board 302. The other end of the second circuit board 302 is provided with a gold finger, which is located at the position of the electric port and connected with the upper computer to realize the electric connection with the upper computer.

The unlocking member 203 includes: the outer wall of one side of unlocking ware 2031 and lower casing 202 sets up the spout, and unlocking ware 2031 is along annular swing joint, and the external fixation of unlocking ware 2031 and lower casing is located to side apron 2032 cover to unlocking ware 2031 and side apron 2032, unlocking ware 2031.

The optical module 200 is further provided with: and a jaw 800 for securing a fiber optic adapter. The jaw 800 includes: cardboard and four card arms, wherein be provided with first through-hole and second through-hole on the cardboard, first through-hole is passed to the one end of first fiber optic adapter 600, with first outside fiber connection. One end of the second fiber optic adapter 700 passes through the second through hole and connects to the second external optical fiber. The first through hole is arranged above the second through hole, the first clamping arm and the second clamping arm are symmetrically arranged on two sides of the first through hole, and the third clamping arm and the fourth clamping arm are symmetrically arranged on two sides of the second through hole.

In the embodiment of the present application, the lower case 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 positioned on two sides of the cover plate and are 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 covers 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 a 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 clamped with the lower side wall for fixing the unlocking component 203.

First light transceiver submodule 400 and second light transceiver submodule 500 that set up from top to bottom in this application occupy great space of upper and lower direction, and two light transceiver submodule's of cooperation setting are gone up casing 201 and lower casing 202 and are cascaded setting, improve space utilization.

Fig. 5 is a first structural diagram of a lower housing provided in an embodiment of the present application, and fig. 6 is a first sectional diagram of a lower housing provided in an embodiment of the present application, as shown in fig. 5 and 6, in an embodiment of the present application, a lower housing 202 includes: a bottom plate 2023, and a first lower side plate 2021 and a second lower side plate 2022 which are located on both sides of the bottom plate 2023 and are arranged perpendicular to the bottom plate 2023.

The inner wall of the lower case base plate 2023 is arranged in a stepped manner, and includes a first sub base plate 20231, a second sub base plate 20232 and a third sub base plate 20233 which are connected in sequence, wherein one end of the first sub base plate 20231 is arranged near the optical aperture, the other end is connected with one end of the second sub base plate 20232, the other end of the second sub base plate 20232 is connected with the third sub base plate 20233, the second sub base plate 20232 is arranged perpendicular to the first sub base plate 20231, and the third sub base plate 20233 is arranged perpendicular to the second sub base plate 20232. The third sub-base plate 20233 protrudes toward the inside of the package cavity with respect to the first sub-base plate 20231.

A first supporting plate 2041 is disposed between the first lower side plate 2021 and the second lower side plate 2022, is parallel to the bottom plate 2023, and is located at one end of the head of the first side plate and the second side plate. One end of the first supporting 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 first side plate in the height direction.

A second supporting plate 2042 is further disposed between the first lower side plate 2021 and the second lower side plate 2022, is disposed parallel to the bottom plate 2023, and is located at one end of the head of the first lower side plate 2021 and the second lower side plate 2022. One end of the first supporting plate 2041 is perpendicular to the first lower side plate 2021, and the other end is 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 to form an optical port, and external optical fibers pass through the optical port to enter the inside of the package cavity and are connected with the optical fiber adapter. The first external optical fiber connector extends between the first support plate 2041 and the second support plate 2042 and is connected to the first optical fiber adapter 600, and the second external optical fiber connector extends between the second support plate 2042 and the bottom plate 2023 and is connected to the second optical fiber adapter 700. The first support plate 2041 realizes fixation and physical separation of the first external optical fiber and the second external optical fiber, and increases optical path stability.

Fig. 7 is a first upper housing structure diagram provided in the embodiment of the present application, and fig. 8 is a second upper housing structure diagram provided in the embodiment of the present application. Fig. 8 is a schematic view of fig. 7 in a reversed direction. Fig. 8 is a first 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, the first upper side plate 2011 and the second upper side plate 2012 which are positioned on two sides of the cover plate 2013 and are perpendicular to the cover plate 2013 are combined by the two upper side plates and the two lower side plates, so that the upper shell 201 covers the lower shell 202.

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

Specifically, fig. 9 is a second structural schematic diagram of a lower housing provided in the embodiment of the present application, and fig. 10 is a sectional structural schematic diagram of an upper housing and a lower housing provided in the embodiment of the present application. As shown in the figure, the upper surface of the first lower side plate 2021 is in a stepped arrangement, and includes: 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 are sequentially reduced. The distance between the connecting mesa of the second sub-lower board 20212 and the third sub-lower board 20123 and the optical port of the second sub-lower board 2023 is the same.

The upper surface of second lower side plate 2022 is cascaded setting, includes: the heights of the fourth sub lower panel 20221, the fifth sub lower panel 20222 and the sixth sub lower panel 20223 are sequentially reduced, and the heights of the fourth sub lower panel 20221, the fifth sub lower panel 20222 and the sixth sub lower panel 20223 are sequentially reduced. The distance between the connecting mesa of the fifth sub-lower board 20222 and the sixth sub-lower board 20223 and the optical port of the second sub-lower board 2023 is the same.

Correspondingly, the cover 2013 is arranged in a stepped manner and comprises a first sub-cover 20131, a second sub-cover 20132 and a third sub-cover 20133 which are sequentially connected, wherein one end of the first sub-cover 20131 is arranged close to the light opening, the other end of the first sub-cover 20131 is connected with one end of the second sub-cover 201320132, the other end of the second sub-cover 20132 is connected with the third sub-cover 20133, the second sub-cover 20132 is perpendicular to the first sub-cover 20131, and the third sub-cover 20133 is perpendicular to the second sub-cover 20132. The third sub-flap 20133 protrudes towards the inside of the package cavity with respect to the first sub-flap 20131.

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

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

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

The second upper side plate 2012 is disposed on the first sub-cover plate 20131 and located at the opposite side of 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 present application, the upper housing 201 and the lower housing 202 are bonded by glue, so as to improve the tightness of the connection.

In the embodiment of the present application, the length of the third sub-base 20233 is smaller than the length of the third sub-lid 20133, and the tail of the third sub-base 20233 is provided with a first isolation protrusion 20234 and a first isolation protrusion 20234, which protrude upward to implement electromagnetic shielding at the electrical port.

The upper shell 201 is provided with a first isolation plate 2014, which is located on the lower surface of the third sub-cover plate 20133, a circuit board through hole is arranged between the first isolation protrusion 20234 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 shield the inside of the package cavity as much as possible, so as to achieve electromagnetic shielding at the electrical 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 stopper 20224, which is connected to the other end of the first isolation plate 2014. The first isolation plate 2014 is connected with the second limit portion 20224 and the first limit portion 20214, so as to realize the positioning between the upper casing 201 and the lower casing 202 and realize the electromagnetic shielding at the optical module electric port.

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

Optionally, go up casing 201 and still be equipped with first limiting plate 2015 and second limiting plate 2016, first limiting plate 2015, second limiting plate 2016 and third sub-apron 20133 set up perpendicularly, and the side of first limiting plate 2015 presses close to the sub-lower side plate 20123 inner wall of third, and first spacing portion 20214 is pressed close to the curb plate of second limiting plate 2016, and the opposite side forms spacing fixed to first circuit board 301. The side edge of the second limit plate 2016 is adjacent to the inner wall of the sixth sub-lower side plate 20223, the side plates of the second limit plate 2016 are adjacent to the second limit portion 20224, and the other side of the second limit plate 2016 is limited and fixed to the first circuit board 301.

As shown in fig. 10, the first isolation plate 2014 is connected to the first side surface of the second position-limiting portion 20224, the second position-limiting plate 2016 is connected to the first side surface of the second position-limiting portion 20224, and the first side surface and the second side surface of the second position-limiting portion 20224 are two adjacent surfaces.

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

Optionally, the first optical transceiver sub-assembly 400 has a BOSA structure, and the second optical transceiver sub-assembly 500 has a BOSA structure. One end of the first optical transceiver sub-assembly 400 is connected to the first optical fiber adapter 600, and the other end is provided with a first circuit board 301. One end of the second optical transceiver sub-assembly 500 is connected to the second optical fiber adapter 700, and the other end is provided with the second circuit board 302. The first circuit board 301 is disposed above the second circuit board 302 in a suspended manner, and a flexible circuit board is disposed between the first circuit board 301 and the second circuit board 302 to electrically connect the first circuit board 301 and the second circuit board 302. The other end of the second circuit board 302 is provided with a gold finger, which is located at the position of the electric port and connected with the upper computer to realize the electric connection with the upper computer.

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

The third avoiding part 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 isolation plate 2014; the fourth avoidance part is connected with one side of the second limiting plate 2016, and the other side of the second limiting plate 2016 is connected with the first isolation plate 2014; further enhancing the electromagnetic shielding effect on the direction of the electric port.

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

The lower casing 202 further has a lower electric port baffle 2024 disposed at the tail of the lower casing 202, one end of which is connected to the first lower side plate 2021 and the other end of which is connected to the second lower side plate 2022, so as to shield the electric port. Optionally, the upper surface of the lower electrical port baffle 2024 protrudes from the upper surface of the first lower side plate 2021, and one end of the third sub-cover plate 20133 abuts against one side of the electrical 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 baffle is located on the electric port baffle.

The inner wall of the first sub-base plate 20231 is provided with a first shielding baffle group 206, wherein the first shielding baffle group 206 is perpendicular to the base plate 2023 and is arranged along the width direction of the optical module, so that electromagnetic shielding of the first shielding baffle group 206 in the direction of the electrical port of the optical module in the longitudinal direction, the transverse direction and the like is realized, and the shielding effect of the first shielding baffle group 206 at the electrical port of the optical module is ensured.

The second circuit board 302 is disposed above the first isolating plate 2014 group, the first shielding baffle group 206 is disposed adjacent to the second sub-base plate 20232 and includes a plurality of first isolating plates 2014, and a first distance is disposed between each two isolating plates to improve the shielding effect.

The inner wall of the first sub-cover 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 direction of the electrical port of the optical module is realized, and the shielding effect of the second shielding baffle group 207 at the electrical port of the optical module is ensured.

The first optical transceiving submodule and the second optical transceiving submodule 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 the shielding plates of the first shielding baffle group 206 is the same as that of the second shielding baffle group 207, and the positions correspond to each other.

In order to shield the optical port of the optical module, a fixing arm 2026 is disposed at the head of the lower housing 202 and connected to the optical fiber adapter to electromagnetically shield 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 one side of the first side blocking arm 20262 and is disposed on one side close to the light port. Optionally, the surface of the second shielding protrusion 20215 is disposed in an arc shape, and the protrusion height of the second shielding protrusion 20215 gradually increases along the direction from the optical port to the electrical port. The inner wall of the second lower side plate 2022 is further provided with a third shielding protrusion 20225, which is located on one side of the second side blocking arm 20263 and is disposed on one side close to the light port. Optionally, the surface of the third shielding protrusion 20225 is disposed in an arc shape, and the protrusion height of the third shielding protrusion 20225 gradually increases along the direction from the optical port to the electrical port.

Fig. 13 is a third schematic structural diagram of a lower housing according to an embodiment of the present application. Fig. 14 is a partial cross-sectional illustration 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, a bottom stop arm 20261 is disposed on the bottom plate 2023 and protrudes into the interior of the packaging chamber. The inner surface of the first lower side plate is provided with a first side blocking arm 20262 which protrudes towards the inside of the wrapping cavity relative to the inner surface of the first lower side plate, and one end of the first side blocking arm 20262 is connected with the bottom blocking arm 20261. The inner surface of the second lower side plate is provided with a second side baffle arm 20263, which protrudes towards the inside of the wrapping cavity relative to the inner surface of the second lower side plate, and one end of the second lower side plate is connected with the bottom baffle 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 barrier arm 20261 is arranged in an arc shape, and is matched 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, and the shielding effect at the optical 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 portion 601 and the second mounting portion 602, and the first mounting portion 601 and the second mounting portion 602 protrude from an outer wall of the fiber optic adapter. A first clamping groove 603 is formed between the first mounting portion 601 and the second mounting portion 602, the first side stop arm 20262 is embedded in one side of the first clamping groove 603, and the second side stop arm 20263 is embedded in the other side of the first clamping groove 603, so that the second fiber optic adapter 700 is fixed. The second fiber optic adapter 700 includes: a third mounting portion 701 and a fourth mounting portion 702, and the third mounting portion 701 and the fourth mounting portion 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 stop arm 20262 is embedded in one side of the second clamping groove 703, and the second side stop arm 20263 is embedded in the other side of the second clamping groove 703, so that the second fiber optic adapter 700 is fixed. Meanwhile, the bottom stop arm 20261 is inserted into the second locking groove 703 to support and fix the second fiber optic adapter 700.

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

A first supporting plate 2041 is disposed between the first lower side plate 2021 and the second lower side plate 2022, is parallel to the bottom plate 2023, and is located at one end of the head of the first side plate and the head of the second side plate. One end of the first supporting 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 first side plate in the height direction.

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

The upper surface of the lower side plate is arranged in a stepped mode and comprises three step surfaces with different heights. A second supporting plate 2042 is arranged between the upper shell 201 and the lower shell 202, and one end of the second supporting plate 2042 is connected with a cover plate 2013 of the upper shell 201 to form a wrapping cavity.

Fig. 15 is a schematic structural view of a chuck according to an embodiment of the present disclosure. In combination with fig. 15, to achieve the fixed connection between the first fiber optic adapter 600, the second fiber optic adapter 700 and the lower housing 202, claws 800 are further provided. The jaw 800 includes: cardboard 810 and four card arms, wherein be provided with first through-hole 811 and second through-hole 812 on cardboard 810, first through-hole 811 is passed to one end of first fiber optic adapter 600, with first external optical fiber connection. One end of the second fiber optic adapter 700 passes through the second through-hole 812 and connects to a second external optical fiber. 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 lower housing 202 sets up the jack catch mounting groove, inside cardboard 810 embedding jack catch mounting groove, the jack catch mounting groove carries on spacingly to jack catch 800. In the embodiment of the present application, the card 810 is further provided with a first fastening portion 813 and a second fastening portion 814, wherein the first fastening portion 813 is disposed at the outer sides of the first clamping arm 820 and the third clamping arm 840, and one side edge of the card 810 is recessed to form the first fastening portion 813. The second locking portion 814 is disposed at the outer side of the second locking arm 830 and the fourth locking arm 850, and one side edge of the locking plate 810 is recessed to form the first locking portion 813. One of the clamping parts and the second clamping part 814 are symmetrically disposed at two ends of the clamping plate 810.

The thickness of the first locking portion 813 and the second locking portion 814 is less than the thickness of the body of the locking plate 810, and the first locking portion 813 and the second locking portion are used for being locked with the lower shell 202 to fix the clamping jaws 800 on the lower shell 202. The first locking portion 813 and the second locking portion 814 are inserted into the locking slot, so that the locking of the locking claw 800 by the lower housing 202 is realized.

Correspondingly, the claw mounting groove includes a first claw mounting groove 20216 and a second claw mounting groove 20226, wherein the first claw mounting groove 20216 is disposed on the first lower side plate 2021 and is located between the first side barrier arm 20262 and the second shielding protrusion 20215, the first clamping portion 813 is embedded in the first claw mounting groove 20216, and the second clamping portion 814 is embedded in the second claw mounting groove 20226, so that the claw 800 and the lower housing 202 are mounted and fixed.

The end of the first latch arm 820 is provided with a guide 821, which is combined with the guide 831 of the second latch arm 830 to form a guide area, so that an external optical fiber plug can be conveniently inserted into the first optical fiber adapter 600.

The inner wall of the guide part is sequentially protruded towards the inner wall from the optical port direction to the electrical port direction, so that the distance between the guide part of the first clamping arm 820 and the inner wall of the second clamping arm 830 is gradually reduced from the outer side to the inner side, and the insertion of an external optical fiber is facilitated. The first arm 820 is further provided with a slot, and the inner surface of the slot is recessed to clamp and fix the external optical fiber structure. Optionally, the slot of the first arm 820 is an arc-shaped result, and forms an external optical fiber fixing region by enclosing with the slot of the second arm 830, 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 baffle arm 20261 protruding towards the inside of the wrapping cavity. Specifically, the bottom barrier arm 20261 is disposed on the first sub-base plate 20231. The first side wall is provided with a first side stop arm 20262 on the inner surface, which protrudes towards the inside of the packaging cavity relative to the inner surface of the first side wall, and one end of which is connected with the bottom stop arm 20261. The inner surface of the second lower side plate is provided with a second side baffle arm 20263 which protrudes towards the inside of the wrapping cavity relative to the inner surface of the second lower side plate, and one end of the second side baffle arm is connected with the bottom baffle arm 20261. Optionally, to facilitate the mounting of the latch 800 to the lower housing 202, the surface of the bottom stop arm 20261 near the optical port is disposed perpendicular to the first sidewall. The surface of the first side barrier arm 20262 on the side close to the light port is perpendicular to the bottom plate 2023. The surface of the second side barrier arm 20263 on the side close to the optical port is perpendicular to the bottom plate 2023.

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

In some embodiments of the present application, the second side blocking arm 20263 occupies a part of the height direction of the second lower side plate, or the second side blocking arm 20263 extends through the entire height direction of the second lower side plate, that is, the other end of the second side blocking 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 barrier arm 20262, the second side barrier arm 20263, and the bottom barrier arm 20261 facing the optical port are located 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 arm.

The upper surface of the bottom stop arm 20261 is arranged in an arc shape, and is matched with the shape of the second fiber optic adapter 700, so that the stability between the second fiber optic adapter 700 and the bottom plate 2023 is enhanced.

Fig. 16 is a partial structural schematic view of an optical transceiver module according to an embodiment of the present disclosure, and fig. 17 is a structural schematic view of an optical transceiver, a claw, and a lower housing according to an embodiment of the present disclosure. As shown in fig. 16 and 17, the first fiber optic adapter 600 includes: a first mounting portion 601 and a second mounting portion 602, wherein the first mounting portion 601 and the second mounting portion 602 protrude from an outer wall of the fiber optic adapter. A first clamping groove 603 is formed between the first mounting portion 601 and the second mounting portion 602, the first side stop arm 20262 is embedded in one side of the first clamping groove 603, and the second side stop arm 20263 is embedded in 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: a third mounting portion 701 and a fourth mounting portion 702, and the third mounting portion 701 and the fourth mounting portion 702 protrude from the outer wall of the optical fiber adapter. A second clamping groove 703 is formed between the third installation part 701 and the fourth installation part 702, the first side blocking arm 20262 is embedded into one side of the second clamping groove 703, and the second side blocking arm 20263 is embedded into the other side of the second clamping groove 703, so that the second optical fiber adapter 700 is fixed. Meanwhile, the bottom stop arm 20261 is inserted into the second locking groove 703 to support and fix the second fiber optic adapter 700.

In the assembly process, the first fiber optic adapter 600 is first connected to the first through hole 811, and the second fiber optic adapter 700 is connected to the second through hole 812, thereby implementing the first fiber optic adapter 600. The second optical fiber adapter 700 is fixed to the latch 800, and then the latch 800 is inserted into the latch installation groove, during which the first side stop arm 20262 and the second side stop arm 20263 are inserted into the first locking groove 603 and the second locking groove 703, and are inserted and connected from the top to the bottom until the bottom stop arm 20261 is inserted into the second locking groove 703, so as to achieve positioning and installation. After the installation, the bottom stop arm 20261 is inserted into the second locking groove 703, so as to fix the lower housing 202 to the lower side surface of the second fiber adapter 700. The surface of the bottom stopper arm 20261 is arc-shaped and is matched with the size of the second locking groove 703, so that the connection stability is increased.

The first clip arm 820 is disposed between the second shielding protrusion 20215 and the first fiber optic adapter 600, and a gap exists between the first clip arm 820 and the first fiber optic adapter 600, and the size of the gap gradually decreases from the optical port to the electrical port. The second arm 830 is disposed between the third shielding protrusion 20225 and the first fiber adapter 600, and a gap exists between the third arm 840 and the first 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 fiber adapter 700, and a gap exists between the third clamping arm 840 and the second fiber adapter 700, and the size of the gap gradually decreases from the optical port to the electrical port. The fourth clip arm 850 is disposed between the third shielding protrusion 20225 and the first fiber adapter 600, and a gap exists between the fourth clip arm 850 and the first fiber adapter 600, and the size of the gap is gradually reduced from the optical port to the electrical port, which is convenient for assembly.

During the installation, usable card arm and the clearance between the casing 202 down adopt instrument or manual work to carry out the centre gripping to jack catch 800, and jack catch 800 conveniently assembles in inserting the jack catch mounting groove.

The first lower plate has a thickness greater than a thickness of the second lower plate. The spout sets up in the outer wall of first curb plate down.

Fig. 18 is a schematic partial structural diagram of an optical module according to an embodiment of the present application, where in some embodiments of the present application, the unlocking component 203 includes: the outer wall of the first lower side plate 2021 is connected to the unlocking device 2031 and the outer wall of the side cover plate 2032, the sliding groove 208 is formed in the outer wall of the first lower side plate 2021, the unlocking device 2031 is movably connected to the sliding groove 208, and the side cover plate 2032 covers the outside of the unlocking device 2031 and the first lower side plate and is fixed to the first lower side plate 2021. One end of the slide groove 208 is provided with an unlocking inclined portion 209 and an engaging member 210. The unlocker 2031 comprises: a handle, a spring and an unlocking member.

Fig. 19 is a partial structural schematic view of a lower shell of an optical module according to an embodiment of the present application, and fig. 20 is a partial structural schematic view of fig. 19. As shown in fig. 19 and 20, in particular, the sliding groove 208 is disposed on the first lower side plate 2021 and is formed by being recessed compared to an outer surface of the first lower side plate 2021. The unlocking inclined portion 209 is provided at one end of the slide groove 208, and includes: a first recess 2091 and a second recess 2092, a first protrusion is provided between the first recess 2091 and the second recess 2092. The first groove 2091 is located between two inclined surfaces, wherein a first end of the first inclined surface 20911 is connected to the sliding groove 208, a second end of the first inclined surface 20911 is connected to the second inclined surface 20912, and the first inclined surface 20911 is inwardly recessed along a direction from the first end to the second end. The first end of the second inclined surface 20912 is connected to the first inclined surface 20911, the second end is connected to the second groove 2092, and the second inclined surface 20912 is protruded to the outside in a direction from the first end to the second end. The first inclined surface 20911 is connected to the second inclined surface 20912 to form a first recess 2091.

In the present embodiment, the chute 208 is provided on the first sub lower panel 20211 and the second sub lower panel 20212, and the unlocking inclination portion is provided on the third sub lower panel 20123.

The second groove 2092 includes: a third inclined surface 20921, a fourth transition surface 20922 and a fifth inclined surface 20923 connected in sequence, a first end of the third inclined surface 20921 is connected to a second end of the second inclined surface 20912, a first end of the third inclined surface 20921 is connected to the fourth inclined surface, and the third inclined surface 20921 is inwardly recessed in a direction from the first end to the second end. The second inclined surface 20912 and the third inclined surface 20921 are connected to form a first protrusion 2093.

A first end of the fourth transition surface 20922 is connected to a second end of the third inclined surface 20921, a second end of the fourth transition surface 20922 is connected to a second end of the fifth inclined surface 20923, and a 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 between the second groove 2092 and the outer surface of the first lower side plate 2021 is greater than the vertical distance between the first groove 2091 and the outer surface of the first lower side plate 2021.

The clamping part 210 is matched with the buckle of the upper computer. Specifically, the engaging member 210 may be disposed in the second groove 2092 or directly disposed on the outer surface of the lower housing 202. The shape of the engaging member 210 matches with the shape of the upper computer buckle, and specifically may be triangular as shown in the figure, and is disposed in the second groove 2092. The engaging member 210 is disposed to protrude from the outer surface of the lower case 202.

Fig. 21 is a first structural diagram of an unlocking device provided in the embodiment of the present application, and fig. 22 is a second structural diagram of an unlocking device provided in the embodiment of the present application. Fig. 21 and 22 show the unlocker from different angles. The unlocker 2031 comprises: a handle 20311, a spring (not shown) and an unlocking member 20314. The handle 20311 and the unlocking member 20314 are attached to the outer surface of the lower housing 202, and the side cover plate 2032 is disposed on the outer surface of the unlocking member 2031 for fixing the unlocking member 2031.

One end of the handle is located between the lower housing 202 and the side cover plate 2032, and the other end of the handle extends out of the lower housing 202, so that the handle is convenient to pull, and the unlocking piece is jacked up by one end. The unlocking member 20314 includes: a first connection portion 201314 and a second lifting portion 203142. The inner surface of the first connection portion 201314 matches with the first groove 2091, and the first connection portion 201314 fits to the outer surface of the first groove 2091. The second raised portion 203142 mates with the second recess 2092. The second lifting portion 203142 is hollowed to form a clip clearance portion 20316, and the engaging member 210 is fitted into the clip clearance portion.

When the handle is pulled towards the light opening direction, 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 into the first groove 2091 from the bottom of the second groove 2092, the outer surface of the lifting portion protrudes out of the outer surface of the lower shell 202, outward tension is formed on the claw of the upper computer, the buckle is separated from the clamping component 210, the clamping component 210 slips from the upper computer, and the connection between the upper computer and the optical module is released.

One end of the handle is provided with a pull ring, so that the handle is convenient to grasp. The annular pull ring is convenient to hold and exert force. The other end of the pull ring is connected with a connecting rod 20312, and the connecting rod 20312 is matched with the sliding groove 208 in size.

To prevent the unlocking means 2031 from slipping out between the lower housing 202 and the side cover plate 2032, the unlocking means 2031 further comprises: and a catching portion 20315 provided at one side of the handle connecting rod 20312. The fastening portion 20315 may be in the same plane as the handle or may form a certain angle with the handle. The surface of the lower housing 202 is provided with a connection limiting portion 2081, which is communicated with the sliding groove 208 and used for limiting installation of the clamping portion 20315. The dimension of the connection limiting part 2081 in the length direction of the optical module is larger than the dimension of the clamping part in the length direction of the optical module. The engaging portion 20315 is relatively movable in the orientation of the connection limiting portion 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 towards the optical port direction from the electric 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 into the first groove 2091 from the bottom of the second groove 2092, 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 connector of the upper computer, so that the buckle is separated from the engaging member 210, the engaging member 210 slips off from the upper computer, and the connection between the upper computer and the optical module is released.

Optionally, the fastening portion includes a first fastening portion and a second fastening portion, which are symmetrically disposed on the opposite side of the connecting rod 20312, and the connection limiting portion 2081 also correspondingly includes a first connection limiting portion and a second connection limiting portion.

To reset the release 2031, a spring is provided in the embodiment of the present application. The connecting rod 20312 is provided with a spring installation groove 20313, and the chute 208 is provided with a spring protrusion 2082 located in the spring installation groove 20313. One end of the spring close to the light opening is fixed with the spring protrusion, and the other end is connected with one end of the spring installation groove 20313. In the process of pulling the handle, 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 into the first groove 2091 from the bottom of the second groove 2092, the outer surface of the lifting portion protrudes out of the outer surface of the lower housing 202, and outward tension is formed on the claw of the upper computer, so that the buckle is separated from the engaging member 210, the engaging member 210 slips off from the upper computer, and the connection between the upper computer and the optical module is released. The spring is compressed by one end of the spring installation groove 20313, and after the pulling force is removed, the spring pushes the connecting rod 20312 to move towards the electric port direction under the action of the elastic force of the spring, and the second lifting part 203142 moves from the first concave groove 2091 to the second concave groove 2092.

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

Specifically, the sliding groove 208 is located within a projection range of the cover housing 20321 on the first lower side plate 2021, the sliding groove 208 and the cover housing 20321 form a cavity, and the connecting rod 20312 of the lock release 2031 is located inside the cavity.

The first end of the first housing plate 20322 is not flush (lengthwise) with the first end of the cover housing 20321, and the second end of the first housing plate 20322 is not flush with the second end of the cover housing 20321. The second end of the first shell 20322 is close to the electrical port.

The first shell plate 20322 is provided with: a first hooking portion 203221, a second hooking portion 203222, and a third hooking portion 203223. A fifth escape portion 203227 is provided between the first fastening portion 203221 and the second fastening portion 203223, and a sixth escape portion 203228 is provided between the second fastening portion 203222 and the third fastening portion 203223. The distances between the first fastening portion 203221, the second fastening portion 203222 and the third fastening portion 203223 may be the same or different.

The distances from the edges of the first, second, and

third locking portions

203221, 203222, and 203223 to the cover shell 20321 are longer than the distances from the sixth, and

fifth relief portions

203228 and 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 upper surface of the first lower side plate 2021 is provided with a first snap projection, a second snap projection and a third snap projection, which are fastened to the first shell plate 20322. Specifically, the first protrusion is embedded in the first hole 203224, the second protrusion is embedded in the second hole, and the third protrusion is embedded in the third hole.

After the first housing plate 20322 is fastened to the first fastening portion 203221, the upper surface thereof is a plane 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 shell 201 and the second sub-lower shell plate.

The second shell plate 20323 is provided with: a fourth card hole, a fifth card hole and a sixth card hole. Wherein: the prices of the fourth card hole and the fifth card hole and the prices of the fifth card hole and the sixth card hole can be the same or different. The second housing plate 20323 is disposed 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 snap projection, a fifth snap projection and a sixth snap projection, which are fastened to the second shell plate 20323. Specifically, the fourth card is convexly embedded into the fourth card hole, the fifth card is convexly embedded into the fifth card hole, and the sixth card is convexly embedded into the sixth card hole.

In this embodiment, during installation, the unlocking device 2031 is first installed inside the sliding groove 208, the latching 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 engaging member 210 is embedded into the engaging member positioning portion, and the spring is installed inside the spring installation groove 20313. Then, the side cover 2032 is engaged with the lower case 202, and the lock release 2031 is fixed to the lower case 202.

Since the above embodiments are all described by referring to and combining with other embodiments, the same portions are provided between different embodiments, and the same and similar portions between the various embodiments in this specification may be referred to each other. And will not be described in detail herein.

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

It is 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. Also, 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 phrases "comprising a" \8230; "defining an element do not exclude the presence of additional like elements in a circuit structure, article, or device comprising the element.

Claims

1. A light module, comprising: the upper shell comprises a cover plate, a first upper side plate and a second upper side plate, wherein the first upper side plate and the second upper side plate are arranged on two sides of the cover plate;

the lower shell is covered with the upper shell to form a wrapping cavity with an optical port and an electric port, and the wrapping cavity comprises a bottom plate, a first lower side plate and a second lower side plate, wherein the first lower side plate and the second lower side plate are arranged on two sides of the bottom plate;

the circuit board is arranged inside the packaging cavity;

the bottom plate is sequentially provided with a first sub bottom plate, a second sub bottom plate and a third sub bottom plate which are connected along the direction from the optical port to the electric port; the third sub-bottom plate is higher than the first sub-bottom plate;

the first shielding baffle group is arranged on the inner wall of the first sub-base plate, and the height of the upper surface of the first shielding baffle group is not higher than that of the upper surface of the third sub-base plate;

one end of the third sub-base plate is provided with a first shielding bulge, and the third sub-cover plate is provided with a first isolation plate;

the optical transceiving sub-module is arranged between the first sub-base plate and the first sub-cover plate and is positioned on one side of the first shielding baffle group;

a through hole is formed between the first shielding protrusion and the first isolation plate, and one end of the circuit board penetrates through the through hole;

the second shielding bulge is arranged on the inner wall of the first lower side plate and bulges towards the interior of the wrapping cavity;

and the height of the second shielding protrusion is gradually increased along the direction from the optical port to the electric port.

2. The optical module of claim 1, wherein the first set of shielding shutters comprises a plurality of first shielding shutters spaced apart from each other, the first shielding shutters protruding from the bottom plate.

3. The optical module according to claim 2, wherein the cover plate is provided with a first sub-cover plate, a second sub-cover plate and a third sub-cover plate which are connected in sequence along the direction from the optical port to the electrical port; the height of the third sub cover plate is lower than that of the first sub cover plate;

the second shielding baffle plate group is arranged on the inner wall of the first sub-cover plate, and the lower surface of the second shielding baffle plate group is not lower than the lower surface of the third sub-cover plate; and the third shielding protrusion is arranged on the inner wall of the second lower side plate and protrudes towards the inside of the wrapping cavity.

4. The optical module according to claim 3, wherein the first shielding baffle group and the second shielding baffle group are symmetrically arranged, and a length of the third sub-chassis is smaller than a length of the third sub-cover.

5. The optical module according to claim 3, wherein the lower housing further has a lower electrical port baffle, one end of which is connected to the first lower side plate and the other end of which is connected to the second lower side plate for electromagnetic shielding;

the inner wall of the first lower side plate is also provided with a first limiting part which is connected with the first shielding bulge;

the inner wall of the second lower side plate is also provided with a second limiting part which is connected with the first shielding bulge;

one side of the first isolation plate is connected with the inner wall of the first limiting part, and the other side of the first isolation plate is connected with the inner wall of the second limiting part.

6. The light module of claim 5, wherein the upper housing is further provided with: the first limiting plate is perpendicular to the third sub-cover plate, and one side of the first limiting plate is connected with the first limiting part;

and the second limiting plate is vertical to the third sub-cover plate, and one side of the second limiting plate is connected with the second limiting part.

7. The optical module of claim 6, wherein the rosa comprises: the first optical transceiving submodule and the second optical transceiving submodule; the second optical transceiving submodule is arranged above the lower shell, and the first optical transceiving submodule is arranged above the second optical transceiving submodule.

8. The light module of claim 7, wherein the circuit board comprises:

the first circuit board is connected with the first optical transceiving submodule and arranged on the inner side of the first shielding bulge;

the second circuit board is connected with the first optical transceiver sub-module, and one end of the second circuit board penetrates through a through hole between the first shielding bulge and the first isolation plate;

the projection of the second circuit board on the bottom plate covers the projection of the first circuit board on the bottom plate;

the first limiting plate and the second limiting plate are arranged above the second circuit board.

9. The optical module of claim 1, wherein the upper housing is glued to the lower housing.

10. The optical module according to claim 1, wherein the first shielding protrusion is disposed obliquely upward.