CN117677879A

CN117677879A - Optical module

Info

Publication number: CN117677879A
Application number: CN202280050299.4A
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: 2022-03-28
Publication date: 2024-03-08

Abstract

An optical module (200), comprising: an upper case (201), a lower case (202), a circuit board (300), and an optical transceiver sub-module (400, 500). The lower shell (202) and the upper shell (201) are covered to form a wrapping cavity, and the circuit board (300) is arranged in the wrapping cavity. The lower shell (202) comprises a cover plate (2013), and a first upper side plate (2011) and a second upper side plate (2012) which are arranged on two sides of the cover plate (2013); the upper shell (201) comprises a bottom plate (2023), and a first lower side plate (2021) and a second lower side plate (2022) which are arranged on two sides of the bottom plate (2023). The optical transceiver sub-modules (400, 500) are arranged in the wrapping cavity and are connected with one end of the circuit board (300). A first shielding baffle group (206) is arranged on the inner wall of the bottom plate (2023), and a second shielding baffle group (207) is arranged on the inner wall of the cover plate (2013). The first shielding baffle group (206) and the second shielding baffle group (207) form multiple reflections to electromagnetic radiation of the optical module (200) and weaken the electromagnetic radiation.

Description

Optical module

The present disclosure claims that the chinese patent office, application number 202111135877.8, was filed at 2021, 09, 27, and 202111137925.7, and the chinese patent office, application number 202122353725.7, was filed at 2021, 09, 27, and is incorporated by reference in its entirety.

Technical Field

The disclosure relates to the technical field of optical communication, and in particular relates 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.

Disclosure of Invention

In a first aspect, an embodiment of the present disclosure discloses an optical module, the optical module including: the device comprises an upper shell, a lower shell, a circuit board and an optical transceiver sub-module. The upper shell comprises a cover plate, and a first upper side plate and a second upper side plate which are arranged on two sides of the cover plate. The lower shell and the upper shell are covered to form a wrapping cavity, and the lower shell comprises a bottom plate, a first lower side plate and a second lower side plate which are arranged on two sides of the bottom plate. The circuit board is arranged in the wrapping cavity. The optical transceiver sub-module is arranged in the wrapping 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; and a through hole is arranged between the first shielding bulge and the first isolation plate, and one end of the circuit board passes through the through hole.

In a second aspect, embodiments of the present disclosure disclose an optical module, including: the unlocking device comprises an upper shell, a lower shell, an unlocking device and a side cover plate. The upper housing includes: the cover plate, the first upper side plate and the second upper side plate; 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 the second upper side plate is positioned on the opposite side of the first upper side plate. The lower casing with the last casing lid closes and forms the parcel cavity, the lower casing includes: bottom plate, first downside board and second downside board. The bottom plate is arranged on the opposite side of the cover plate. The first lower side plate is arranged on one side of the bottom plate, and the first lower side plate is covered with the first upper side plate. The second lower side plate is arranged on the other side of the bottom plate, and the second lower side plate and the second upper side plate are covered. The unlocking device is in sliding connection with the outer wall of the first lower side plate. The side cover plate is arranged on the outer side of the unlocking device and is connected with the first lower side plate.

In a third aspect, an embodiment of the present disclosure discloses an optical module, including: the device comprises an upper shell, a lower shell, a first optical transceiver sub-module, a second optical transceiver sub-module and a claw. The lower shell and the upper shell are covered to form a wrapping cavity. The second optical transceiver sub-module is located in the wrapping cavity, the second optical transceiver sub-module is arranged above the lower shell, and a second optical fiber adapter is arranged at one end of the second optical transceiver sub-module. The first optical transceiver sub-module is positioned in the wrapping cavity, the first optical transceiver sub-module is arranged above the second optical transceiver sub-module, and a first optical fiber adapter is arranged at one end of the first optical transceiver sub-module. The clamping jaw comprises a clamping plate and a clamping arm vertically arranged on one side of the clamping plate, and the clamping plate is clamped with the lower shell; the clamping plate is provided with a first through hole and a second through hole, and the second through hole is arranged below the first through hole; the first optical fiber adapter is connected with the first through hole; the second fiber optic adapter is connected to the second through hole.

Drawings

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

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

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

FIG. 3 is a block diagram of an optical module according to some embodiments;

fig. 4 is an exploded view of a light module according to some embodiments;

FIG. 5 is a schematic view of a lower housing structure according to some embodiments;

FIG. 6 is a schematic cross-sectional view of a lower housing in accordance with some embodiments;

FIG. 7 is a schematic diagram of an upper housing structure according to some embodiments;

FIG. 8 is a schematic diagram of a second upper housing structure according to some embodiments;

FIG. 9 is a schematic diagram of a lower housing structure according to some embodiments;

FIG. 10 is a schematic cross-sectional view of an upper housing and a lower housing according to some embodiments;

FIG. 11 is a schematic diagram of a circuit board structure according to some embodiments;

FIG. 12 is a schematic cross-sectional view of an optical module in accordance with some embodiments;

FIG. 13 is a schematic diagram III of a lower housing structure according to some embodiments;

FIG. 14 is a schematic partial cross-sectional view of a lower housing according to some embodiments;

FIG. 15 is a schematic diagram of a jaw configuration according to some embodiments;

FIG. 16 is a schematic view of a partial structure of an optical transceiver assembly according to some embodiments;

FIG. 17 is a schematic diagram of an optical transceiver, a jaw, and a lower housing according to some embodiments;

fig. 18 is a schematic diagram of a partial structure of an optical module according to some embodiments;

fig. 19 is a schematic view of a partial structure of a lower housing of an optical module according to some embodiments;

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

FIG. 21 is a schematic diagram of an unlock mechanism in accordance with some embodiments;

FIG. 22 is a second schematic diagram of an unlocking mechanism according to some embodiments;

FIG. 23 is a schematic illustration of a side cover plate structure according to some embodiments;

Fig. 24 is a schematic diagram of a side cover structure according to some embodiments.

Detailed Description

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

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

Throughout the specification and claims, unless the context requires otherwise, the word "comprise" and its other forms such as the third person referring to the singular form "comprise" and the present word "comprising" are to be construed as open, inclusive meaning, i.e. as "comprising, but not limited to. In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", "some examples", "and the like are intended to indicate that a particular feature, structure, material, or characteristic associated with the embodiment or example is included in at least one embodiment or example of the present disclosure. The schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

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

In describing some embodiments, expressions of "coupled" and "connected" and their derivatives may be used. For example, the term "connected" may be used in describing some embodiments to indicate that two or more elements are in direct physical or electrical contact with each other. As another example, the term "coupled" may be used in describing some embodiments to indicate that two or more elements are in direct physical or electrical contact. However, the term "coupled" or "communicatively coupled (communicatively coupled)" may also mean that two or more elements are not in direct contact with each other, but yet still co-operate or interact with each other. The embodiments disclosed herein are not necessarily limited to the disclosure herein.

At least one of "A, B and C" has the same meaning as at least one of "A, B or C," both include the following combinations of A, B and C: a alone, B alone, C alone, a combination of a and B, a combination of a and C, a combination of B and C, and a combination of A, B and C.

"A and/or B" includes the following three combinations: only a, only B, and combinations of a and B.

The use of "configured to" herein is meant to be an open and inclusive language that does not exclude devices configured to perform additional tasks or steps.

As used herein, "about," "approximately" or "approximately" includes the stated values as well as average values within an acceptable deviation range of the particular values as determined by one of ordinary skill in the art in view of the measurement in question and the errors associated with the measurement of the particular quantity (i.e., limitations of the measurement system).

In the optical communication technology, light is used to carry information to be transmitted, and an optical signal carrying the information is transmitted to an information processing device such as a computer through an information transmission device such as an optical fiber or an optical waveguide, so as to complete the transmission of the information. 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 the electric connection is mainly configured to realize 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 connection diagram of an optical communication system 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. Illustratively, the 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 the 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. Illustratively, 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, as a host computer of the optical module 200, can monitor the operation 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 block diagram of an optical module according to some embodiments, and fig. 4 is an exploded 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 housing includes an upper housing 201 and a lower housing 202, the upper housing 201 being capped on the lower housing 202 to form the above-described housing having two openings 204 and 205; the outer contour of the housing generally presents a square shape.

The direction of the connection line of the two openings 204 and 205 may be identical to the length direction of the optical module 200 or not identical to the length direction of the optical module 200. Illustratively, opening 204 is located at the end of light module 200 (right end of fig. 3) and opening 205 is also located at the end of light module 200 (left 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 from 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.

The assembly mode of combining the upper shell 201 and the lower shell 202 is adopted, so that devices such as the circuit board 300 and the optical transceiver 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 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 (such as capacitors, resistors, triodes, and MOS transistors) and chips (such as MCUs, laser driving chips, limiting and amplifying chips, clock data recovery CDRs, power management chips, and data processing chips DSP), and the above devices in the optical module 200 are connected together according to circuit designs by the circuit traces to achieve functions such as power supply, electrical signal transmission, and grounding. The electronic components may include, for example, capacitors, resistors, transistors, metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET). The chips may include, for example, a micro control unit (Microcontroller Unit, MCU), limiting amplifier (Limiting Amplifier), clock data recovery chip (Clock and Data Recovery, CDR), power management chip, digital signal processing (Digital Signal Processing, DSP) chip.

The circuit board 300 further includes a gold finger formed on an end surface thereof, the gold finger being composed of a plurality of pins independent of each other. The circuit board 300 is inserted into the cage 106 and is conductively connected to the electrical connectors within the cage 106 by the gold fingers. The golden finger can be arranged on the surface of one side of the circuit board 300 (such as the upper surface shown in fig. 4) or on the surfaces of the upper side and the lower side of the circuit board 300, so as to adapt to the occasion with large pin number requirements. The golden finger is configured to establish electrical connection with the upper computer to achieve power supply, grounding, I2C signal transmission, data signal transmission and the like.

The optical transceiver device comprises an optical transmitting sub-module and an optical receiving sub-module.

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

In some embodiments of the present disclosure, a metal pin/gold finger is formed on one side end surface of the rigid circuit board, configured to be connected with an electrical 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 present disclosure 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 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 according to some embodiments 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 case 201; the second optical transceiver sub-module 500 is disposed adjacent to the lower housing 202.

In some embodiments of the present disclosure, the first optical transceiver sub-module 400 is a BOSA structure, and the second optical transceiver sub-module 500 is 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 disposed 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, and the golden finger is positioned at the electric port and is connected with the upper computer to realize electric connection with the upper computer.

In some embodiments of the present disclosure, 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 member 203 and the lower housing, a side cover plate is further provided, which is clamped with the lower side wall, and the side cover plate is configured to fix the unlocking member 203.

The first optical transceiver sub-module 400 and the second optical transceiver sub-module 500, which are disposed up and down in the present disclosure, occupy a relatively large space in the up-down direction. In order to match with the arrangement of the double-light receiving and transmitting sub-module, the upper shell 201 and the lower shell 202 are arranged in a step mode, so that the space utilization rate can be improved.

Fig. 5 is a schematic diagram of a lower housing structure according to some embodiments, and fig. 6 is a schematic diagram of a lower housing cross-section according to some embodiments. As shown in fig. 5 and 6, in the embodiment of the present disclosure, the lower case 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, and the first support plate 2041 is disposed parallel to the bottom plate 2023 and is located 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 at a middle position in 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, and the second support plate 2042 is disposed parallel to the bottom plate 2023 and is 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 may enable fixation and physical separation of the first and second external optical fibers to increase stability of an optical path.

Fig. 7 is a first schematic diagram of an upper housing structure according to some embodiments, and fig. 8 is a second schematic diagram of an upper housing structure according to some embodiments. 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 some embodiments. 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.

In some embodiments of the present disclosure, fig. 9 is a schematic diagram of a lower housing structure according to some embodiments, and fig. 10 is a schematic diagram of a cross-sectional structure of an upper housing and a lower housing according to some embodiments. As shown in the drawing, the upper surface of the first lower side plate 2021 is provided in a stepwise manner, and the first lower side plate 2021 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 20213 decrease in order. The connection mesa of the second sub-lower side plate 20212 and the third sub-lower side plate 20213 is the same as the second sub-lower bottom plate 2023 in distance from the light port end.

The upper surface of the second lower side plate 2022 is arranged in a step manner, and the second lower side plate 2022 includes: 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. The connection mesa of the fifth sub-lower side plate 20222 and the sixth sub-lower side plate 20223 is at the same distance from the light port end as the second sub-lower bottom plate 2023.

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, one end of the first sub-cover plate 20131 is arranged at a position close to the light port, the other end of the first sub-cover plate 20131 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 perpendicular to the first sub-cover plate 20131, and the third sub-cover plate 20133 is perpendicular to 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 disclosure, the distance from the second sub-bottom plate 20232 to the optical port is identical to 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, and is configured to encapsulate the cavity.

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 present disclosure, an adhesive joint is used between the upper case 201 and the lower case 202 to improve the connection tightness.

In the embodiment of the present disclosure, the length of the third sub-bottom plate 20233 is smaller than the length of the third sub-cover plate 20133, and the tail portion of the third sub-bottom plate 20233 is provided with a first shielding protrusion 20234 protruding upward, and the first shielding protrusion 20234 is configured to implement electromagnetic shielding at the electrical port.

The upper case 201 is provided with a first isolation plate 2014, the first isolation plate 2014 is located on the lower surface of the third sub-cover plate 20133, a circuit board through hole is formed between the first shielding protrusion 20234 and the first shielding protrusion, and one end of the second circuit board 302 penetrates through the circuit board through hole to be connected with an upper computer. The first isolation plate 2014 and the first shielding protrusion 20234 shield 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.

In some embodiments of the present disclosure, the first spacing portion 20214 is located on an inner wall of the third sub-lower side plate 20213, and the second spacing portion 20224 is disposed on an inner wall of the sixth sub-lower side plate 20223.

In some embodiments of the present disclosure, 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, a side edge of the first limiting plate 2015 is close to an inner wall of the third sub-lower side plate 20213, a side edge of the second limiting plate 2016 is close to the first limiting portion 20214, and the other side of the second limiting plate 2016 forms a limiting fixation to 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 second 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 according to some embodiments, and fig. 12 is a schematic diagram of a cross section of an optical module according to some embodiments. 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.

In some embodiments of the present disclosure, one end of the first circuit board 301 is provided with a first avoidance portion 3011 and a second avoidance portion 3012, and the second circuit board 302 is provided with a third avoidance portion 3021 and a fourth avoidance portion. The first escape portion 3011 and the third escape portion 3021 are provided on the same side, and the second escape portion 3012 and the fourth escape portion are provided 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 as to position the second circuit board 302 in the longitudinal direction.

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 insulating plate 2014, thereby further enhancing the electromagnetic shielding effect in the electrical port direction.

In some embodiments of the present disclosure, the first isolation plate 2014 is disposed perpendicular to the cover plate 2013, and an orthographic projection of an upper surface of the first shielding protrusion 20234 on the bottom plate 2023 is located in an orthographic projection range of the bottom surface of the first isolation plate 2014 on the bottom plate 2023.

The tail of the lower shell 202 is also provided with a lower electric port baffle 2024, one end of the lower electric port baffle 2024 is connected with the first lower side plate 2021, and the other end is connected with the second lower side plate 2022 so as to form shielding to an electric port. In some embodiments of the present disclosure, 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.

In some embodiments of the present disclosure, the lower electric port baffle 2024 is disposed between the first sub-lower side plate 20211 and the second sub-lower side plate 20212, the first circuit board 301 is disposed on one side of the electric port baffle, and an orthographic projection of the first circuit board 301 toward 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 at the electric opening of the optical module in longitudinal, transverse and other directions, and ensure the shielding effect of the first shielding baffle group 206 at the electric opening of the optical module.

The second circuit board 302 is disposed above the first shielding baffle set 206, and the first shielding baffle set 206 is disposed adjacent to the second sub-bottom 20232 and includes a plurality of shielding plates, and a certain distance is disposed between each shielding plate to improve the 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 at the electric opening of the optical module is realized, and the shielding effect of the second shielding baffle group 207 at the electric opening of the optical module is ensured.

The first optical transceiver sub-module 400 and the second optical transceiver sub-module 500 are disposed between the first sub-chassis 20231 and the first sub-cover 20131, and the first circuit board 301 and the second circuit board 302 are disposed between the third sub-chassis 20233 and the third sub-cover 20133.

In some embodiments of the present disclosure, the first shielding baffle group 206 corresponds to the number of shielding plates 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.

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, and the second shielding protrusion 20215 is located on the first side blocking arm 20262 side and is disposed on the side close to the light opening. In some embodiments of the present disclosure, 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 stepwise 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. In some embodiments of the present disclosure, the surface of the third shielding protrusion 20225 is provided in a circular arc shape, and the protrusion height of the third shielding protrusion 20225 increases stepwise in the light-port-to-electrical-port direction.

Fig. 13 is a schematic diagram of a lower housing structure according to some embodiments. Fig. 14 is a partial cross-sectional illustration of a lower housing according to some embodiments. Fig. 14 is a schematic view of a portion of fig. 6. As shown in fig. 13 and 14, the bottom plate 2023 is provided with a bottom stopper arm 20261, and the bottom stopper arm 20261 protrudes into the interior of the wrapping chamber. The inner surface of the first lower side plate 2021 is provided with a first side blocking arm 20262, the first side blocking arm 20262 protrudes toward the inside of the wrapping cavity relative to the inner surface of the first lower side plate 2021, and one end of the first side blocking arm 20262 is connected to the bottom blocking arm 20261. The second lower side plate 2022 has a second side blocking arm 20263 provided on an inner surface thereof, the second side blocking arm 20263 protrudes toward an inside of the wrapping cavity with respect to an inner surface of the second lower side plate 2022, and one end of the second side blocking arm 20263 is connected to the bottom blocking arm 20261.

In some embodiments of the present disclosure, the first side stop arm 20262 is disposed on an inner wall of the second sub-lower side plate 20212, and the second side stop arm 20263 is disposed on an inner wall of the fourth sub-lower side plate 20221. 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.

The upper surface of the bottom blocking arm 20261 is arc-shaped, and is matched 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 can be enhanced, and shielding effect at the light opening is enhanced.

The upper surface of the lower side plate adopts a step-type arrangement and comprises three step surfaces with different heights. One end of the second support plate 2042 is connected with the cover plate 2013 of the upper case 201 to form a packing cavity.

Fig. 15 is a schematic diagram of a jaw configuration according to some embodiments. As shown in fig. 15, to achieve a secure connection between the first fiber optic adapter 600, the second fiber optic adapter 700, and the lower housing 202, a pawl 800 is also provided, the pawl 800 being configured to secure the fiber optic adapters. 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 some embodiments of the present disclosure, the clamping plate 810 is further provided with a first clamping portion 813 and a second clamping portion 814, the first clamping portion 813 is disposed on the outer sides of the first clamping arm 820 and the third clamping arm 840, and an edge of one side of the clamping plate 810 is recessed to form the first clamping 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 second fastening portion 814. The first fastening portions 813 and the second fastening portions 814 are symmetrically disposed at two ends of the clamping plate 810.

The thickness of the first fastening portion 813 and the second fastening portion 814 is smaller than that of the body of the clamping plate 810, and the first fastening portion 813 and the second fastening portion 814 are configured to be fastened with the lower housing 202, so as to fix the clamping jaw 800 and 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 includes a first jaw mounting groove 20216 and a second jaw mounting groove 20226, wherein the first jaw mounting groove 20216 is disposed on the first lower side plate 2021 and located 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 as to realize the mounting and fixing of the jaw 800 and the lower housing 202.

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

The inner walls of the first guide part 821 and the second guide part 831 are sequentially protruded from the optical port direction to the electrical port direction to the inner wall, so that the distance between the first guide part 821 of the first clamping arm 820 and the inner wall of the second clamping arm 830 is gradually reduced from the outside to the inside, and the external optical fiber is convenient to insert. 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. In some embodiments of the present disclosure, the clamping groove of the first clamping arm 820 is arc-shaped, and forms an external optical fiber fixing area in surrounding with the clamping groove of the second clamping arm 830, and the specific shape can be set according to the shape of the connector of the external optical fiber.

In some embodiments of the present disclosure, the bottom stop arm 20261 is disposed on the first sub-floor 20231. In some embodiments of the present disclosure, to facilitate the installation of the pawl 800 with the lower housing 202, the surface of the bottom stop arm 20261 near the side of the mouth 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 disclosure, 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 disclosure, the second side stop arm 20263 occupies a portion of the height direction of the second lower side plate 2022, or the second side stop arm 20263 extends through the entire height direction of the second lower side plate 2022, i.e., the other end of the second side stop arm 20263 is flush with the upper surface of the second lower side plate 2022.

In some embodiments of the present disclosure, the first side stop arm 20262, the second side stop arm 20263, and the bottom stop arm 20261 lie on the same plane on a side facing the light port. 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 stop arm 20261 is curved to match the profile of the second fiber optic adapter 700 to enhance stability between the second fiber optic adapter 700 and the bottom plate 2023.

Fig. 16 is a schematic view of a partial structure of an optical transceiver assembly according to some embodiments, and fig. 17 is a schematic view of an optical transceiver device, a claw, and a lower housing according to some embodiments. In some embodiments of the present disclosure, as shown in fig. 16 and 17, a 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 arranged 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 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 arranged between the third mounting portion 701 and the fourth mounting portion 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 as to fix the second optical fiber adapter 700. Further, the bottom stop arm 20261 is fitted into the second locking groove 703 to support and fix the second fiber optic adapter 700.

In the assembly process, first fiber optic adapter 600 is connected with first through hole 811, second fiber optic adapter 700 is connected with second through hole 812, fixing of first fiber optic adapter 600, second fiber optic adapter 700 and clamping jaw 800 is achieved, clamping jaw 800 is then inserted into clamping jaw mounting groove, in the process, first side blocking arm 20262 and second side blocking arm 20263 are respectively inserted into first clamping groove 603 and second clamping groove 703 from top to bottom until bottom blocking arm 20261 is inserted into second clamping groove 703, and positioning and mounting are achieved. 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 arc-shaped, and can be 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 gradually decreases from the optical port to the electrical port, so that the assembly can be facilitated.

During installation, the clamping jaw 800 can be clamped by a tool or a person by utilizing a gap between the clamping arm and the lower shell 202, and the clamping jaw 800 is inserted into the clamping jaw mounting groove, so that the assembly can be convenient.

The thickness of the first lower side plate 2021 is greater than the thickness of the second lower side plate 2022.

Fig. 18 is a schematic diagram of a partial structure of an optical module according to some embodiments. In some embodiments of the present disclosure, the unlocking member 203 includes an unlocking 2031 and a side cover 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 2032 is covered outside the unlocking device 2031 and the first lower side plate 2021 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.

Fig. 19 is a schematic view of a partial structure of a lower housing of an optical module according to some embodiments, and fig. 20 is a schematic view of a partial structure of fig. 19. As shown in fig. 19 and 20, in some embodiments of the present disclosure, the chute 208 is disposed on the first lower side plate 2021, which is concavely formed compared to the outer surface of the first lower side plate 2021. Unlocking slope portion 209 sets up in the one end of spout 208, and unlocking slope portion 209 includes: a first projection 2093 is provided between the first recess 2091 and the second recess 2092, and between the first recess 2091 and the second recess 2092. The first groove 2091 is located between the two inclined surfaces, 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 20112, and the first inclined surface 2091 is recessed inward in a first end to second end direction. 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 some embodiments of the present disclosure, 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 20213.

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 some embodiments of the present disclosure, the depth of the second groove 2092 is greater than the depth of the first groove 2091, i.e., the perpendicular distance of the second groove 2092 from the outer surface of the first lower side plate 2021 is greater than the perpendicular 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. In some embodiments of the present disclosure, 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 matches the shape of the upper computer buckle, and in some embodiments of the present disclosure, the engaging member 210 may be triangular and 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 according to some embodiments, and fig. 22 is a schematic diagram of an unlocking device according to some embodiments. 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 housing 202 with the unlocking piece 20314, the side cover plate 2032 is provided on the outer surface of the unlocking piece 2031, and the side cover plate 2032 is configured to fix 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, and the clamping part 210 slides off from the upper computer, so that 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 housing 202 is provided with a connection limiting portion 2081, and the connection limiting portion 2081 is communicated with the chute 208 and configured for limiting installation of the clamping portion 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 clip portion 20315 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, and 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 is separated from the engaging member 210, and the engaging member 210 slides off from the upper computer, thereby connecting the upper computer and the optical module is released.

In some embodiments of the present disclosure, the clamping portion 20315 includes a first clamping portion and a second clamping 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.

To effect return of the delatcher 2031, a spring is also provided in some embodiments of the disclosure. The connecting rod 20312 is provided with a spring mounting groove 20313, the chute 208 is provided with a spring boss 2082, and the spring boss 2082 is located 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, and the engaging member 210 slides off from the upper computer, thereby connecting 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 according to some embodiments, and fig. 24 is a schematic diagram of a second side cover structure according to some embodiments. Fig. 23 and 24 show the side cover plate from different angles. The side cover 2032 is attached to an outer surface of the lower housing 202 and is configured to secure the unlocking device 2031. In some embodiments of the present disclosure, 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 bonded to the outer surface of the first lower side plate 2021, the first shell 20322 is bonded to the upper surface of the first lower side plate 2021, and the second shell 20323 is bonded 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.

In some embodiments of the present disclosure, the orthographic projection of the chute 208 on the first lower side plate 2021 is located within the orthographic 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 inside which the connecting rod 20312 of the unlocking device 2031 is located.

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. 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. A fifth avoiding portion 203227 is arranged between the first fastening portion 203221 and the second fastening portion, and a sixth avoiding portion 203228 is arranged 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. In some embodiments of the present disclosure, the first snap tab is embedded within the first snap aperture 203224, the second snap tab is embedded within the second snap aperture 203225, and the third snap tab is embedded within the third snap aperture 203226.

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 some embodiments of the present disclosure, the first shell plate 20322 is disposed above the second sub-lower shell plate, between the upper housing 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. The intervals between the fourth and fifth card holes and 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. In some embodiments of the present disclosure, the fourth card projection is embedded inside the fourth card hole, the fifth card projection is embedded inside the fifth card hole, and the sixth card projection is embedded inside the sixth card hole.

In some embodiments of the present disclosure, during installation, the unlocking device 2031 is first 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. The side cover 2032 is then engaged with the lower housing 202 to achieve a secure mounting of the delatcher 2031 to the lower housing 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.

The foregoing is merely a specific embodiment of the disclosure, but the protection scope of the disclosure is not limited thereto, and any person skilled in the art who is skilled in the art will recognize that changes or substitutions are within the technical scope of the disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

An optical module, comprising:

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

the circuit board is arranged in the wrapping cavity;

the optical transceiver sub-module is arranged in the wrapping 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;

and a through hole is arranged between the first shielding bulge and the first isolation plate, and one end of the circuit board passes through the through hole.
The light module of claim 1 wherein the first set of shielding baffles comprises a plurality of spaced apart first shielding baffles protruding from the bottom plate.
The optical module of claim 2, wherein the bottom plate is provided in a stepped configuration, the bottom plate comprising: the first sub-base plate, the second sub-base plate and the third sub-base plate are sequentially connected; the third sub-bottom plate is higher than the first sub-bottom plate; the first shielding baffle plate group is arranged on the inner wall of the first sub-bottom plate;

the apron is cascaded setting, the apron includes: the first sub-cover plate, the second sub-cover plate and the third sub-cover plate are sequentially connected; 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.
The optical module of claim 3, wherein the first shielding baffle group and the second shielding baffle group are symmetrically arranged, and the length of the third sub-bottom plate is smaller than the length of the third sub-cover plate.
The optical module of claim 3, wherein the lower housing is further provided with 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, configured as electromagnetic shield; the inner wall of the first lower side plate is also provided with a first limiting part which is connected with the first shielding protrusion; 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.
The optical 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 perpendicular to the third sub-cover plate, and one side of the second limiting plate is connected with the second limiting part.
The optical module of claim 6, wherein the optical transceiver sub-module comprises: a first optical transceiver sub-module and a second optical transceiver sub-module; the second optical transceiver sub-module is arranged above the lower shell, and the first optical transceiver sub-module is arranged above the second optical transceiver sub-module.
The optical module of claim 7, wherein the circuit board comprises: the first circuit board is connected with the first light receiving and transmitting sub-module and is arranged on the inner side of the first shielding protrusion; the second circuit board is connected with the first optical transceiver sub-module, and one end of the second circuit board passes through the through hole between the first shielding protrusion and the first isolation board; 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.
The light module of claim 1 wherein the upper housing is glued to the lower housing.
The light module of claim 1, wherein the first shielding protrusion is disposed obliquely upward.
An optical module, comprising:

an upper housing comprising:

a cover plate;

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;

the lower casing, with last casing lid closes and forms the parcel cavity, the lower casing 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 attached to the outer wall of the first lower side plate and is connected with the first lower side plate in a sliding manner;

and the side cover plate is arranged at the outer side of the unlocking device and is connected with the first lower side plate.
The light module of claim 11, 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.
The light module of claim 12 wherein the first lower side plate has a thickness greater than a thickness of the second lower side plate.
The light module of any one of claims 12-13, 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.
The light module of claim 12, wherein the delatcher further comprises a spring;

a spring bulge is further arranged in the unlocking chute;

the unlocking device is provided with a spring mounting groove and is configured to accommodate the spring;

the spring bulge is arranged in the spring mounting groove, and one end of the spring is connected with the spring bulge.
The optical module of claim 12, wherein the lower housing further comprises: 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.
The light module of claim 12, 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.
The light module of claim 17, wherein the first lower side plate 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.
The optical module of claim 12, 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.
The optical module of claim 19, wherein the first housing plate is provided with a plurality of card holes;

the upper surface of the first lower side plate is provided with a plurality of clamping protrusions, the clamping protrusions are embedded into the clamping holes and are configured to connect the side cover plate with the first lower side plate.
An optical module, comprising:

an upper housing;

the lower shell is covered with the upper shell to form a wrapping cavity;

the first optical transceiver sub-module is positioned in the wrapping cavity, and one end of the first optical transceiver sub-module is provided with a first optical fiber adapter;

the second optical transceiver sub-module is positioned in the wrapping cavity and arranged below the first optical transceiver sub-module, and one end of the second optical transceiver sub-module is provided with a second optical fiber adapter;

The clamping claw comprises a clamping plate and a clamping arm protruding out of one side of the clamping plate, and the clamping plate is clamped with the lower shell;

the inner wall of the lower shell is provided with a claw mounting groove, one side of the claw mounting groove is provided with a clamping plate blocking arm, and the other side of the claw mounting groove is provided with a shielding protrusion; the clamping plate is embedded into the claw mounting groove;

the clamping plate is provided with a first through hole and a second through hole, and the second through hole is arranged below the first through hole;

the first optical fiber adapter is connected with the first through hole; the second fiber optic adapter is connected to the second through hole.
The optical module of claim 21, wherein the lower housing comprises:

a bottom plate;

the first lower side plate and the second lower side plate are arranged on two sides of the bottom plate;

the first supporting plate is arranged between the first lower side plate and the second lower side plate and is flush with the bottom plate;

the second supporting plate is arranged on the upper surfaces of the first lower side plate and the second lower side plate and is flush with the first supporting plate; the second supporting plate is covered above the first supporting plate.
The light module of claim 22 wherein the first and second lower side panels have a length greater than a length of the bottom panel;

The lower shell is also provided with:

one end of the lower electric port baffle is connected with the first lower side plate, and the other end of the lower electric port baffle is connected with the second lower side plate;

a first shielding protrusion at one end of the bottom plate, the first shielding protrusion protruding obliquely upward;

one end of the upper shell is connected with the second baffle, and the other end of the upper shell is connected with the lower electric port baffle.
The optical module according to claim 23, wherein an inner wall of the first lower side plate is provided with a first limiting portion, and one end of the first limiting portion is connected with the first shielding protrusion;

the inner wall of the second lower side plate is provided with a second limiting part, and one end of the second limiting part is connected with the first shielding protrusion;

the upper shell is provided with a first isolation plate; the two ends of one side of the first isolation plate are respectively connected with the first limiting part and the second limiting part.
The light module of claim 22 wherein the card blocking arm comprises:

the bottom baffle arm is perpendicular to the bottom plate;

the first side baffle arm is arranged on the inner wall of the first lower side plate, and one end of the first side baffle arm is connected with the bottom baffle arm;

the second side blocking arm is arranged on the inner wall of the second lower side plate, and one end of the second side blocking arm is connected with the bottom blocking arm.
The light module of claim 25, wherein the shielding protrusion comprises:

The second shielding bulge is arranged on the inner wall of the first lower side plate and is positioned on one side of the first side baffle arm; a first claw mounting groove is formed between the second shielding protrusion and the first side blocking arm;

the third shielding bulge is arranged on the inner wall of the second lower side plate and is positioned on one side of the second side blocking arm; a second claw mounting groove is formed between the third shielding protrusion and the first side blocking arm;

the second shielding protrusion and the third shielding protrusion are protruded towards the inner part of the wrapping cavity in an arc shape.
The light module of claim 26 wherein the card has a first detent at one end and a second detent at an opposite end;

the first clamping and fixing part is embedded into the first claw mounting groove; the second clamping and fixing part is embedded into the second claw mounting groove.
The optical module of claim 27, wherein the clip arm comprises:

one end of the first clamping arm is perpendicular to the clamping plate and is positioned between the first through hole and the first clamping part;

one end of the second clamping arm is perpendicular to the clamping plate and is positioned between the first through hole and the second clamping part;

one end of the third clamping arm is perpendicular to the clamping plate and is positioned between the second through hole and the first clamping part;

And one end of the fourth clamping arm is perpendicular to the clamping plate and is positioned between the second through hole and the second clamping part.
The light module of claim 28 wherein the other end of the first clip arm is provided with a first guide portion that is sloped to project toward the interior of the package cavity and toward the second clip arm along an open end adjacent the package cavity.
The optical module of claim 29, wherein the first snap arm is further provided with a snap groove, one end of the first snap arm being connected to the first guide, the snap groove being configured for mating connection with an outer wall of the first fiber optic adapter.