Optical module

Abstract

An optical module provided by the present disclosure comprises: a lower housing, comprising a bottom plate, a first lower side plate and a third lower side plate which are located on a side of the bottom plate, and a second lower side plate and a fourth lower side plate which are located on another side of the bottom plate, a first interval being provided between the first lower side plate and the third lower side plate, and a second interval being provided between the second lower side plate and the fourth lower side plate; a first upper sub-housing, which is coveringly connected to the first lower side plate and the second lower side plate, so that the first upper sub-housing and the lower housing form a first accommodating cavity; a second upper sub-housing, one end of which is coveringly connected to the first lower side plate, the second lower side plate, and the first upper sub-housing, the other end of which is coveringly connected to the third lower side plate and the fourth lower side plate, so that the second upper sub-housing and the lower housing form a second accommodating cavity, and the second accommodating cavity is in communication with the first accommodating cavity. The optical module provided by the present disclosure has convenient optical module assembly.

Description

optical modules

[0001] This disclosure claims priority to application number 202311049878.X filed on August 18, 2023 with the China Patent Office; and priority to application number 202322230793.3 filed on August 18, 2023 with the China Patent Office; all contents of which are incorporated by reference into this disclosure. Technical Field

[0002] The present disclosure relates to the field of optical fiber communication technology, and in particular to an optical module. Background Art

[0003] With the development of new services and applications such as cloud computing, mobile internet, and video, the advancement of optical communication technology has become increasingly important. In optical communication technology, optical modules are tools for converting optical and electrical signals. They are key components in optical communication equipment and are at the core of optical communication.

[0004] Summary of the Invention

[0005] In a first aspect, the present disclosure provides an optical module, comprising:

[0006] The lower shell includes a bottom plate, a first lower side plate and a third lower side plate located on one side of the bottom plate, and a second lower side plate and a fourth lower side plate located on the other side of the bottom plate; a first interval is set between the first lower side plate and the third lower side plate, a second interval is set between the second lower side plate and the fourth lower side plate, the first lower side plate and the third lower side plate form assembly recesses on both sides of the first interval, and the second lower side plate and the fourth lower side plate form assembly recesses on both sides of the second interval;

[0007] a first upper sub-shell, engaging and connecting the first lower side plate and the second lower side plate, so that the first upper sub-shell and the lower shell form a first accommodating cavity;

[0008] The second upper sub-shell comprises a cover plate, a first upper side plate located on one side of the cover plate, and a second upper side plate located on the other side of the cover plate; one end of the cover plate covers the first upper sub-shell, and the first upper side plate and the second upper side plate cooperate to connect to the assembly recesses on both sides of the lower shell, so that the second upper sub-shell and the lower shell form a second accommodating cavity, and the second accommodating cavity is connected to the first accommodating cavity;

[0009] The circuit board has an edge on one side extending to the first interval, and / or an edge on the other side extending to the second interval.

[0010] In a second aspect, the present disclosure provides an optical module, comprising:

[0011] The lower shell includes a bottom plate, a first lower side plate and a third lower side plate located on one side of the bottom plate, and a second lower side plate and a fourth lower side plate located on the other side of the bottom plate; a first interval is set between the first lower side plate and the third lower side plate, a second interval is set between the second lower side plate and the fourth lower side plate, the first lower side plate and the third lower side plate form assembly recesses on both sides of the first interval, and the second lower side plate and the fourth lower side plate form assembly recesses on both sides of the second interval; a locking piece is provided on the outer wall of the bottom plate, and the locking piece is configured to lock and connect to the upper computer cage;

[0012] a first upper sub-shell, covering and connecting the first lower side plate and the second lower side plate, so that the first upper sub-shell and the lower shell form a first accommodating cavity;

[0013] The second upper sub-shell includes a cover plate, a first upper side plate located on one side of the cover plate, and a second upper side plate located on the other side of the cover plate; one end of the cover plate covers the first upper sub-shell, the first upper side plate is assembled and connected to the first lower side plate and the third lower side plate, and the second upper side plate is assembled and connected to the second lower side plate and the fourth lower side plate, so that the second upper sub-shell covers and connects to the lower shell to form a second accommodating cavity, and the second accommodating cavity is connected to the first accommodating cavity;

[0014] a lower cover plate, located below the lower shell, covering and connecting the first lower side plate and the second lower side plate, so that the lower cover plate and the bottom plate form a third accommodating cavity;

[0015] The unlocking component includes a handle and an unlocker; the handle is sleeved on one end of the lower shell, and the unlocker is arranged in the third accommodating cavity; the handle rotates to push the unlocker toward the locking piece to unlock the locking piece and the upper computer cage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] To more clearly illustrate the technical solutions of the present disclosure, the following briefly introduces the drawings required for use in some embodiments of the present disclosure. Obviously, the drawings described below are only drawings of some embodiments of the present disclosure, and those skilled in the art can also derive other drawings based on these drawings. Furthermore, the drawings described below are schematic diagrams and are not intended to limit the actual dimensions of the products, actual processes of the methods, actual timing of signals, and the like involved in the embodiments of the present disclosure.

[0017] FIG1 is a partial structural diagram of an optical communication system provided by an embodiment of the present disclosure;

[0018] FIG2 is a partial structural diagram of a host computer provided in an embodiment of the present disclosure;

[0019] FIG3 is a schematic structural diagram of an optical module provided in an embodiment of the present disclosure;

[0020] FIG4 is an exploded view of an optical module provided in an embodiment of the present disclosure;

[0021] FIG5 is an exploded schematic diagram of a second upper sub-shell and a lower shell in an optical module provided by an embodiment of the present disclosure;

[0022] FIG6 is a first structural diagram of a second upper sub-shell in an optical module provided by an embodiment of the present disclosure;

[0023] FIG7 is a second structural diagram of the second upper sub-shell in the optical module provided by an embodiment of the present disclosure;

[0024] FIG8 is a first exploded schematic diagram of the lower housing and the first upper sub-housing of the optical module provided in an embodiment of the present disclosure;

[0025] FIG9 is a second exploded schematic diagram of the lower housing and the first upper sub-housing of the optical module provided in an embodiment of the present disclosure;

[0026] FIG10 is a first schematic diagram of the assembly of the first upper sub-shell and the lower shell of the optical module provided in an embodiment of the present disclosure;

[0027] FIG11 is a second schematic diagram of the assembly of the first upper sub-shell and the lower shell of the optical module provided in an embodiment of the present disclosure;

[0028] FIG12 is a first cross-sectional view of an optical module provided in an embodiment of the present disclosure;

[0029] FIG13 is a second cross-sectional view of the optical module provided in an embodiment of the present disclosure;

[0030] FIG14 is a third cross-sectional view of the optical module provided in an embodiment of the present disclosure;

[0031] FIG15 is a schematic structural diagram of a clamping claw in an optical module provided by an embodiment of the present disclosure;

[0032] FIG16 is a diagram showing a state in which a clamping claw in an optical module according to an embodiment of the present disclosure is used;

[0033] FIG17 is a schematic structural diagram of a first upper sub-shell in an optical module provided in an embodiment of the present disclosure;

[0034] FIG18 is a fourth cross-sectional view of an optical module provided in an embodiment of the present disclosure;

[0035] FIG19 is another structural diagram of an optical module provided in an embodiment of the present disclosure;

[0036] FIG20 is an exploded schematic diagram of the lower housing and the lower cover of the optical module provided in an embodiment of the present disclosure;

[0037] FIG21 is a second exploded schematic diagram of the lower housing and the lower cover of the optical module provided by an embodiment of the present disclosure;

[0038] FIG22 is an exploded schematic diagram of an unlocking component and a lower housing in an optical module provided by an embodiment of the present disclosure;

[0039] FIG23 is a schematic diagram of the structure of an unlocker in an optical module provided in an embodiment of the present disclosure;

[0040] FIG24 is a fifth cross-sectional view of an optical module provided in an embodiment of the present disclosure;

[0041] FIG25 is a sixth cross-sectional view of the optical module provided in an embodiment of the present disclosure;

[0042] FIG26 is a seventh cross-sectional view of the optical module provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0043] The following will be combined with the accompanying drawings to clearly and in detail describe the technical solutions in some embodiments of the present disclosure. Obviously, the embodiments described are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments provided by the present disclosure, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of the present disclosure.

[0044] In optical communication technology, to establish information transmission between information processing devices, it is necessary to load the information onto light and use the propagation of light to achieve information transmission. Here, the light loaded with information is an optical signal. When transmitting optical signals within information transmission equipment, they can reduce optical power loss, thereby enabling high-speed, long-distance, and low-cost information transmission. The signals that information processing equipment can recognize and process are electrical signals. Information processing equipment typically includes optical network units (ONUs), gateways, routers, switches, mobile phones, computers, servers, tablets, televisions, etc., and information transmission equipment typically includes optical fibers and optical waveguides.

[0045] Optical modules can convert optical signals into electrical signals between information processing devices and information transmission devices. For example, at least one of the optical signal input or output ends of an optical module is connected to an optical fiber, and at least one of the electrical signal input or output ends of the optical module is connected to an optical network terminal. A first optical signal from the optical fiber is transmitted to the optical module, which converts the first optical signal into a first electrical signal and transmits the first electrical signal to the optical network terminal. A second electrical signal from the optical network terminal is transmitted to the optical module, which converts the second electrical signal into a second optical signal and transmits the second optical signal to the optical fiber. Because multiple information processing devices can transmit information via electrical signals, at least one of the multiple information processing devices needs to be directly connected to the optical module, rather than all of them. Here, the information processing device directly connected to the optical module is referred to as the optical module's host computer. Furthermore, the optical signal input or output end of the optical module can be referred to as an optical port, and the electrical signal input or output end of the optical module can be referred to as an electrical port.

[0046] Figure 1 is a partial structural diagram of an optical communication system provided by an embodiment of the present disclosure. As shown in Figure 1 , the optical communication system mainly includes a remote information processing device 1000, a local information processing device 2000, a host computer 100, an optical module 200, an optical fiber 101, and a network cable 103.

[0047] One end of optical fiber 101 extends toward remote information processing device 1000, and the other end of optical fiber 101 is connected to optical module 200 through the optical port of optical module 200. Optical signals can be totally reflected in optical fiber 101, and the propagation of the optical signal in the direction of total reflection can almost maintain the original optical power. The optical signal undergoes multiple total reflections in optical fiber 101 to transmit the optical signal from remote information processing device 1000 to optical module 200, and vice versa, thereby achieving long-distance, low-power information transmission.

[0048] The optical communication system may include one or more optical fibers 101, and the optical fibers 101 may be detachably connected or fixedly connected to the optical module 200. The host computer 100 is configured to provide data signals to the optical module 200, receive data signals from the optical module 200, or monitor or control the operating status of the optical module 200.

[0049] The host computer 100 includes a substantially rectangular housing and an optical module interface 102 disposed on the housing. The optical module interface 102 is configured to connect to the optical module 200 to establish a unidirectional or bidirectional electrical signal connection between the host computer 100 and the optical module 200.

[0050] The host computer 100 also includes an external electrical interface that can access an electrical signal network. For example, the external electrical interface includes a Universal Serial Bus (USB) interface or a network cable interface 104. The network cable interface 104 is configured to access a network cable 103 so that the host computer 100 establishes a unidirectional or bidirectional electrical signal connection with the network cable 103. One end of the network cable 103 is connected to the local information processing device 2000, and the other end of the network cable 103 is connected to the host computer 100, so that an electrical signal connection is established between the local information processing device 2000 and the host computer 100 via the network cable 103. For example, a third electrical signal emitted by the local information processing device 2000 is transmitted to the host computer 100 via the network cable 103. The host computer 100 generates a second electrical signal based on the third electrical signal. The second electrical signal from the host computer 100 is transmitted to the optical module 200. The optical module 200 converts the second electrical signal into a second optical signal and transmits the second optical signal to the optical fiber 101. The second optical signal is then transmitted to the remote information processing device 1000 via the optical fiber 101. For example, a first optical signal from the remote information processing device 1000 is transmitted through the optical fiber 101. The first optical signal from the optical fiber 101 is transmitted to the optical module 200. The optical module 200 converts the first optical signal into a first electrical signal. The optical module 200 transmits the first electrical signal to the host computer 100. The host computer 100 generates a fourth electrical signal based on the first electrical signal and transmits the fourth electrical signal to the local information processing device 2000. It should be noted that optical modules are tools for converting optical signals into electrical signals. During this conversion process, the information does not change, but the encoding and decoding methods of the information can change.

[0051] In addition to the optical network terminal, the host computer 100 also includes an optical line terminal (OLT), an optical network device (ONT), or a data center server.

[0052] FIG2 is a partial structural diagram of the host computer provided by an embodiment of the present disclosure. To clearly illustrate the connection relationship between the optical module 200 and the host computer 100, FIG2 only shows the structure of the host computer 100 related to the optical module 200. As shown in FIG2, the host computer 100 also includes a PCB circuit board 105 disposed within the housing, a cage 106 disposed on the surface of the PCB circuit board 105, a heat sink 107 disposed on the cage 106, and an electrical connector disposed within the cage 106. The electrical connector is configured to connect to the electrical port of the optical module 200; the heat sink 107 has a protruding structure such as fins to increase the heat dissipation area.

[0053] The optical module 200 is inserted into the cage 106 of the host computer 100. The cage 106 secures the optical module 200. Heat generated by the optical module 200 is transferred to the cage 106 and then dissipated through the heat sink 107. After the optical module 200 is inserted into the cage 106, the electrical port of the optical module 200 connects with the electrical connector inside the cage 106, thereby establishing a bidirectional electrical signal connection between the optical module 200 and the host computer 100. Furthermore, the optical port of the optical module 200 connects to the optical fiber 101, thereby establishing a bidirectional optical signal connection between the optical module 200 and the optical fiber 101.

[0054] Figure 3 is a schematic diagram of the structure of an optical module provided in an embodiment of the present disclosure, and Figure 4 is an exploded view of the optical module provided in an embodiment of the present disclosure. As shown in Figures 3 and 4, the optical module 200 includes a housing, a circuit board 300 disposed within the housing, and an optical transceiver component 400. In some embodiments, the optical transceiver component 400 is encapsulated with an optical transmitting component and an optical receiving component, and the optical transceiver component 400 is configured to transmit and receive optical signals; however, the present disclosure is not limited to this.

[0055] The housing includes an upper housing 201 and a lower housing 202 . The upper housing 201 covers the lower housing 202 to form the housing with two openings. The outer contour of the housing is generally a square.

[0056] In some embodiments, the lower shell 202 includes a bottom plate 2021 and two lower side plates located on both sides of the bottom plate 2021 and arranged vertically or approximately vertically to the bottom plate 2021; the upper shell 201 covers and connects to the lower shell 202 to form the above-mentioned shell.

[0057] In some embodiments, the lower housing 202 includes a bottom plate 2021 and lower side plates located on either side of the bottom plate 2021 and disposed perpendicularly or approximately perpendicularly to the bottom plate 2021. The upper housing 201 includes a cover plate and upper side plates located on either side of the cover plate and disposed perpendicularly or approximately perpendicularly to the cover plate. The upper side plates are combined with the lower side plates to enable the upper housing 201 to cover the lower housing 202.

[0058] The direction of the line connecting the two openings may be consistent with the length direction of the optical module 200, or may be inconsistent with the length direction of the optical module 200. For ease of explanation, in the embodiments of the present disclosure, one of the two openings is referred to as opening 203, and the other opening is referred to as opening 204. Opening 203 is located at an end of the optical module 200 (e.g., the right end in FIG. 3 ), and opening 204 is also located at an end of the optical module 200 (e.g., the left end in FIG. 3 ). Alternatively, opening 203 may be located at an end of the optical module 200, while opening 204 may be located at a side of the optical module 200. Alternatively, in some examples, opening 203 may be located at a side of the optical module 200, while opening 204 may be located at an end of the optical module 200.

[0059] In some examples of the present disclosure, the opening 203 can be an electrical port, and the gold finger of the circuit board 300 extends from the electrical port and is inserted into the host computer 100 (for example, an optical network terminal); the opening 204 can be an optical port, which is configured to access the optical fiber 101 so that the optical fiber 101 is connected to the optical transceiver component 400 in the optical module 200.

[0060] The combined assembly of the upper housing 201 and the lower housing 202 facilitates installation of components such as the circuit board 300 and the optical transceiver 400 within the housing, with the upper and lower housings 202 encapsulating and protecting these components. Furthermore, during assembly of the circuit board 300 and the optical transceiver 400, the positioning, heat dissipation, and electromagnetic shielding components of these components are easily arranged, facilitating automated production.

[0061] In some embodiments, the upper shell and the lower shell 202 are generally made of metal materials, which are conducive to electromagnetic shielding and heat dissipation.

[0062] In some embodiments, the optical module 200 further includes an unlocking component 600 located outside its housing. The unlocking component 600 is configured to achieve a fixed connection between the optical module 200 and the host computer, or to release the fixed connection between the optical module 200 and the host computer.

[0063] In some embodiments, the unlocking member 600 is located on the outside of the two lower side panels of the lower housing 202 and includes engaging components that mate with the cage 106 of the host computer 100. When the optical module 200 is inserted into the cage 106, the engaging components of the unlocking member 600 secure the optical module 200 in the cage 106. When the unlocking member 600 is pulled, the engaging components of the unlocking member 600 move accordingly, thereby changing the connection between the engaging components and the host computer, thereby releasing the optical module 200 from the host computer and allowing the optical module 200 to be removed from the cage 106.

[0064] The circuit board 300 includes circuit traces, electronic components, and chips. The electronic components and chips are connected according to the circuit design through the circuit traces to achieve functions such as power supply, electrical signal transmission, and grounding. Electronic components may include, for example, capacitors, resistors, transistors, and metal-oxide-semiconductor field-effect transistors (MOSFETs). Chips may include, for example, microcontroller units (MCUs), laser driver chips, transimpedance amplifiers (TIAs), limiting amplifiers (LIAs), clock and data recovery chips (CDRs), power management chips, and digital signal processing (DSP) chips.

[0065] The circuit board 300 is generally a rigid circuit board. Due to its relatively hard material, the rigid circuit board can also realize the load-bearing function. For example, the rigid circuit board can stably carry the above-mentioned electronic components and chips; the rigid circuit board can also be inserted into the electrical connector in the cage 106 of the host computer 100.

[0066] The circuit board 300 also includes a gold finger formed on the surface of its end, and the gold finger is composed of a plurality of independent pins. The circuit board 300 is inserted into the cage 106, and the gold finger is connected to the electrical connector in the cage 106. The gold finger can be set only on the surface of one side of the circuit board 300 (for example, the upper surface shown in Figure 4), or it can be set on the upper and lower surfaces of the circuit board 300 to provide a larger number of pins, thereby adapting to occasions where a large number of pins are required. The gold finger is configured to establish an electrical connection with the host computer to achieve power supply, grounding, two-wire synchronous serial (Inter-Integrated Circuit, I2C) signal transmission, data signal transmission, etc. Of course, flexible circuit boards are also used in some optical modules. Flexible circuit boards are generally used in conjunction with rigid circuit boards to supplement rigid circuit boards.

[0067] The optical transceiver 400 is located on the side of the circuit board 300 away from the gold fingers. In some embodiments, at least one of the optical emitting component or the optical receiving component in the optical transceiver 400 can be directly mounted on the circuit board 300. For example, at least one of the optical transceiver or the optical receiving component can be mounted on the surface of the circuit board 300 or on a side of the circuit board 300. A fiber optic adapter 410 is mounted on one end of the optical transceiver 400. The fiber optic adapter 410 is used to connect to an external optical fiber to enable optical signal transmission between the optical transceiver 400 and the external optical fiber.

[0068] In some embodiments, the optical module 200 is further provided with a claw 420, which is mounted on the optical fiber adapter 410 and connected to the lower housing 202 to secure the optical fiber adapter 410. When an external optical fiber is plugged in or unplugged from the optical fiber adapter 410, the claw 420 secures the optical fiber adapter 410 to prevent the optical transceiver 400 from moving due to the plugging and unplugging force.

[0069] In some embodiments, the optical transceiver component 400 is physically separated from the circuit board 300 and then electrically connected to the circuit board 300 through a corresponding flexible circuit board or electrical connector.

[0070] In some embodiments, the upper housing 201 includes a first upper sub-housing 500 and a second upper sub-housing 2010. The first upper sub-housing 500 is coupled to the lower housing 202 to form a first accommodating cavity with the lower housing 202 at an end near the optical port. The second upper sub-housing 2010 is coupled to the lower housing 202 to form a second accommodating cavity with the lower housing 202 at an end near the electrical port. The first accommodating cavity and the second accommodating cavity communicate with each other to form an accommodating cavity for accommodating the circuit board 300 and the optical transceiver component 400. Exemplarily, the first upper sub-housing 500 and the second upper sub-housing 2010 are each engaged and coupled to the lower housing 202.

[0071] In some embodiments, the first upper sub-shell 500 and the second upper sub-shell 2010 are formed of sheet metal components, allowing them to be snap-fitted to the lower shell 202. Compared to some optical modules that use screws to connect the second upper sub-shell 2010 to the lower shell 202, snap-fitting the first upper sub-shell 500 and the second upper sub-shell 2010 to the lower shell 202 simplifies optical module assembly.

[0072] In some embodiments, the lower housing 202 includes a first lower side panel 2022, a second lower side panel 2023, a third lower side panel 2024, and a fourth lower side panel 2025. The first lower side panel 2022 and the third lower side panel 2024 are located on one side of the bottom plate 2021, while the second lower side panel 2023 and the fourth lower side panel 2025 are located on the other side of the bottom plate 2021. Exemplarily, the first upper sub-housing 500 is engaged with the first lower side panel 2022 and the second lower side panel 2023, and the second upper sub-housing 2010 is engaged with the third lower side panel 2024 and the fourth lower side panel 2025.

[0073] In some embodiments, a first spacer 2026 is provided between the first lower side plate 2022 and the third lower side plate 2024 , and a second spacer 2027 is provided between the second lower side plate 2023 and the fourth lower side plate 2025 . The first spacer 2026 and the second spacer 2027 form a gap on the side plate of the lower shell 202 . The first lower side plate 2022 and the second lower side plate 2023 support and connect the first sub-upper shell 500, so that the first sub-upper shell 500 is covered and connected to the first lower side plate 2022 and the second lower side plate 2023; the right end of the first lower side plate 2022 and the right end of the second lower side plate 2023 support and connect the second sub-upper shell 2010, the third lower side plate 2024 and the fourth lower side plate 2025 support and connect the second sub-upper shell 2010, so that one end of the second sub-upper shell 2010 is covered and connected to the first lower side plate 2022 and the second lower side plate 2023, and the other end of the second sub-upper shell 2010 is covered and connected to the third lower side plate 2024 and the fourth lower side plate 2025. In some embodiments, the first spacer 2026 and the second spacer 2027 are used to adapt the circuit board 300, such as supporting the edge of the circuit board 300, facilitating the assembly of the circuit board 300, and providing sufficient space for the circuit board 300 to facilitate expanding the size of the circuit board 300, and also reduce the material used in the lower shell 202.

[0074] In some embodiments, the first upper sub-shell 500 and the second upper sub-shell 2010 are two independent structural components. Of course, in some embodiments of the present disclosure, the first upper sub-shell 500 and the second upper sub-shell 2010 can also be an integrated structural component.

[0075] In some embodiments, to facilitate the installation and positioning of the circuit board 300, positioning members are provided on the lower housing 202 to position and connect the circuit board 300. These positioning members can be components such as positioning posts and stoppers. For example, a first positioning member 2028 is provided within the first compartment 2026 to position and connect one side of the circuit board 300; a second positioning member 2029 is provided within the second compartment 2027 to position and connect the other side of the circuit board 300. The first positioning member 2028 and the second positioning member 2029 thus work together to ensure the installation and positioning of the circuit board 300 within the lower housing 202.

[0076] In some embodiments, the first positioning member 2028 includes a support platform 281 and a positioning post 282. The bottom of the support platform 281 is connected to the base plate 2021, and the top of the support platform 281 is connected to the positioning post 282. The cross-sectional dimensions of the support platform 281 are larger than those of the positioning post 282. To assemble with the first positioning member 2028, a positioning hole or positioning slot is provided at a corresponding position on one side of the circuit board 300. The positioning post 282 is inserted into the positioning hole or positioning slot, and the support platform 281 supports the bottom surface of the circuit board 300 at the edge of the positioning hole. In some embodiments, the structure of the second positioning member 2029 is the same as that of the first positioning member 2028, but the disclosed embodiments are not limited to this.

[0077] In other examples, the first positioning member 2028 can also be a positioning hole or positioning groove provided in the first interval 2026. For example, a portion of the first interval 2026 is recessed into a positioning hole or positioning groove, that is, the positioning hole can be a blind hole or a through hole; accordingly, a limit platform and a positioning column can be provided at the edge of the circuit board 300, the positioning column is passed through the positioning hole or positioning groove, and the limit platform is supported at the edge of the positioning hole or positioning groove.

[0078] Figure 5 is an exploded schematic diagram of the second upper sub-shell and lower shell of the optical module provided in an embodiment of the present disclosure, Figure 6 is a structural schematic diagram of the second upper sub-shell of the optical module provided in an embodiment of the present disclosure, and Figure 7 is a structural schematic diagram of the second upper sub-shell of the optical module provided in an embodiment of the present disclosure. As shown in Figures 5-7, the second upper sub-shell 2010 includes a first upper side plate 2012 and a second upper side plate 2013. The first upper side plate 2012 is located on one side of the cover plate 2011, and the second upper side plate 2013 is located on the other side of the cover plate 2011. One end of the first upper side plate 2012 is connected to the first lower side plate 2022, and the other end of the first upper side plate 2012 is connected to the third lower side plate 2024; one end of the second upper side plate 2013 is connected to the second lower side plate 2023, and the other end of the second upper side plate 2013 is connected to the fourth lower side plate 2025; the cover plate 2011 is located above the base plate 2021.

[0079] In some embodiments, a first assembly part 121 is provided on the first upper side panel 2012. The first assembly part 121 is used to snap onto the lower housing 202, facilitating assembly and connection between the second upper sub-shell 2010 and the lower housing 202. One or more first assembly parts 121 may be provided on the first upper side panel 2012. For example, two first assembly parts 121 are provided on the first upper side panel 2012; one first assembly part 121 is located at one end of the first upper side panel 2012 and is used for assembly and connection with the first lower side panel 2022; the other first assembly part 121 is located at the other end of the first upper side panel 2012 and is used for assembly and connection with the third lower side panel 2024. It should be noted that the number of first assembly parts 121 in the embodiments of the present disclosure is merely provided as a specific example. It is understood that the number of first assembly parts 121 may also be 3, 4, or 5, etc., and may be set specifically according to the specific size of the optical module. The plurality of first assembly parts 121 may be arranged side by side along the length direction of the first upper side plate 2012 . In some examples, the plurality of first assembly parts 121 may also be arranged in a staggered manner along the length direction of the first upper side plate 2012 .

[0080] In some embodiments, a third assembly member 131 is provided on the second upper side panel 2013. The third assembly member 131 is used to engage the lower housing 202, facilitating the engagement and assembly of the second upper sub-housing 2010 and the lower housing 202. One or more third assembly members 131 may be provided on the second upper side panel 2013. For example, two third assembly members 131 are provided on the second upper side panel 2013; one third assembly member 131 is located at one end of the second upper side panel 2013 and is used for assembly and connection with the second lower side panel 2023; the other third assembly member 131 is located at the other end of the second upper side panel 2013 and is used for assembly and connection with the fourth lower side panel 2025.

[0081] In some embodiments, the first assembly member 121 includes an assembly protrusion, which is a protruding structure formed on the inner wall of the first upper side plate 2012. For example, the assembly protrusion is formed by stamping from the outer side to the inner side of the first upper side plate 2012. Of course, in some embodiments of the present disclosure, the assembly protrusion can also be formed by spot welding on the inner wall of the first upper side plate 2012.

[0082] In some examples, the first assembly part 121 may also be an assembly groove. For example, a groove structure may be formed on the inner wall of the first upper side plate 2012. In some examples, an assembly groove may be formed on the inner wall of the first upper side plate 2012 by processing with a milling cutter or a lathe. In other examples, the inner side of the first upper side plate 2012 may be stamped outward to form an assembly groove on the inner wall of the first upper side plate 2012.

[0083] In some embodiments, the third assembly member 131 includes an assembly protrusion, which is a raised structure formed on the inner wall of the second upper side plate 2013. Exemplarily, the assembly protrusion is formed by stamping from the outer side of the second upper side plate 2013 toward the inner side. Of course, in some embodiments of the present disclosure, the assembly protrusion can also be formed by spot welding on the inner wall of the second upper side plate 2013. It is understood that in some examples, the third assembly member 131 can also be a mounting groove, wherein the formation method of the third assembly member 131 can be the same as or similar to that of the first assembly member 121. For details, please refer to the detailed description of the first assembly member 121 in the aforementioned embodiments of the present disclosure.

[0084] In some embodiments, circuit board fixings are also provided on the first upper side plate 2012 and the second upper side plate 2013. When the second sub-upper shell 2010 is assembled and connected to the lower shell 202, the circuit board fixings squeeze the circuit board 300 to fix the circuit board 300 in the cavity formed by the second sub-upper shell 2010 and the lower shell 202.

[0085] In some embodiments, a first fixing member 122 is provided on the first upper side plate 2012. The first fixing member 122 extends toward the second upper side plate 2013 and is used to press the left edge of the circuit board 300. One or more first fixing members 122 may be provided on the first upper side plate 2012. Exemplarily, two first fixing members 122 are provided on the first upper side plate 2012, and the two first fixing members 122 are located between the two first assembly members 121, effectively reducing the possibility of warping of the edge of the first upper side plate 2012 caused by the first fixing members 122 squeezing the circuit board 300.

[0086] In some embodiments, a second fixing member 132 is provided on the second upper side plate 2013. The second fixing member 132 extends toward the first upper side plate 2012 and is used to compress the right edge of the circuit board 300. One or more second fixing members 132 may be provided on the second upper side plate 2013. Exemplarily, two second fixing members 132 are provided on the second upper side plate 2013, and the two second fixing members 132 are located between the two third assembly members 131, effectively reducing the possibility of warping of the edge of the second upper side plate 2013 caused by the second fixing members 132 compressing the circuit board 300.

[0087] In some examples, the first fixing member 122 and the second fixing member 132 can be arranged relative to each other, that is, the first fixing member 122 and the second fixing member 132 are opposite to each other in the width direction of the circuit board 300; in this way, after the first fixing member 122 and the second fixing member 132 are in contact with the circuit board 300 and press the circuit board 300, the balance of the forces applied by the first fixing member 122 and the second fixing member 132 to the circuit board 300 can be ensured, which can reduce the stress on the circuit board 300 and effectively protect the circuit board 300.

[0088] In some embodiments, the first fixing member 122 includes a fixing connection portion 1221 and a contact portion 1222. One end of the fixing connection portion 1221 is connected to the first upper plate 2012, and the other end of the fixing connection portion 1221 is connected to one end of the contact portion 1222. The contact portion 1222 is used to press against the circuit board 300. Exemplarily, the fixing connection portion 1221 is located at a higher height than the contact portion 1222, and the fixing connection portion 1221 extends from its connection with the first upper plate 2012 away from the cover plate 2011. Of course, in some embodiments, the fixing connection portion 1221 can be located at a lower height than the contact portion 1222, and the fixing connection portion 1221 extends from its connection with the first upper plate 2012 toward the cover plate 2011. The structural shape of the second fixing member 132 can be similar to that of the first fixing member 122.

[0089] In some examples, as shown in FIG7 , the first fixing member 122 may be formed by cutting a side wall of the first upper side plate 2012 (e.g., a portion of the side wall located within the first compartment 2026) and then bending the side wall inward (e.g., toward the second accommodating cavity or toward the second upper side plate 2013) to form the first fixing member 122. In other examples, the first fixing member 122 may also be a spring piece fixed to the first upper side plate 2012 by screws, bolts, or threaded rods.

[0090] In some embodiments, one end of the second upper sub-shell 2010 includes an elastic seal for sealing against the host computer cage. When the optical module is inserted into the host computer, the elastic seal provides electromagnetic shielding for the optical module. Exemplarily, the elastic seal includes a plurality of springs.

[0091] In some embodiments, a first elastic sealing portion 111 is provided at one end of the cover plate 2011, a second elastic sealing portion 123 is provided at one end of the first upper side plate 2012, and a third elastic sealing portion 133 is provided at one end of the second upper side plate 2013; the first elastic sealing portion 111, the second elastic sealing portion 123 and the third elastic sealing portion 133 respectively include multiple elastic pieces.

[0092] In some embodiments, assembly recesses are formed on the lower side panels on both sides of the lower housing 202, so that the lower housing 202 can be assembled and connected to the first upper sub-housing 500 and the second upper sub-housing 2010 through the assembly recesses.

[0093] FIG8 is a schematic diagram of the first exploded view of the lower housing and the first upper sub-housing of the optical module provided in an embodiment of the present disclosure, and FIG9 is a schematic diagram of the second exploded view of the lower housing and the first upper sub-housing of the optical module provided in an embodiment of the present disclosure. FIG8 and FIG9 illustrate the structure of the lower housing and the structure of the first upper sub-housing. As shown in FIG8 and FIG9, a second assembly part 221 is respectively provided on the outer wall of the first lower side panel 2022 and the outer wall of the third lower side panel 2024, and the second assembly part 221 is used to assemble and connect with the first assembly part 121; a fourth assembly part 231 is respectively provided on the outer wall of the second lower side panel 2023 and the fourth lower side panel 2025, and the fourth assembly part 231 is used to assemble and connect with the third assembly part 131.

[0094] In some embodiments, the second assembly part 221 and the fourth assembly part 231 are respectively assembly grooves, which can be formed by the outer wall of the first lower side plate 2022 being recessed inward, and the assembly grooves are connected to the assembly protrusions.

[0095] It can be understood that in some examples, when the first assembly part 121 and the third assembly part 131 are assembly grooves, the second assembly part 221 and the fourth assembly part 231 can also be assembly protrusions; among which, the setting method of the second assembly part 221 and the fourth assembly part 231 as assembly protrusions can refer to the detailed description of the first assembly part 121 and the third assembly part 131 in the aforementioned embodiments of the present disclosure, and will not be repeated in the embodiments of the present application.

[0096] In the embodiment of the present disclosure, compared with the second upper sub-shell 2010 and the lower shell 202 being connected by screws, the second upper sub-shell 2010 and the lower shell 202 are assembled conveniently by snap-fitting the first assembly part 121 and the second assembly part 221 and the second assembly part 221 and the fourth assembly part 231.

[0097] In some embodiments, as shown in FIG8 , the first lower side plate 2022 has a first contact surface 222 on its outer wall surface. The first contact surface 222 is located at the other end of the first lower side plate 2022 (for example, as shown in FIG8 , the first contact surface 222 can be located at the end of the first lower side plate 2022 facing the first spacer 2026). The first lower side plate 2022 has a first stepped surface 223 formed at one end of the first contact surface 222. The first contact surface 222 is recessed into the outer wall surface on one side of the first stepped surface 223, thereby forming an assembly recess on the outer side of the first lower side plate 2022 and on one end adjacent to the third lower side plate 2024. The assembly recess is used for assembly and connection with the first upper side plate 2012. The first contact surface 222 is used to contact and connect with the inner side wall of the first upper side plate 2012, and the first stepped surface 223 limits one end of the first upper side plate 2012.

[0098] In some embodiments, the third lower side plate 2024 has a third contact surface 241 on its outer wall surface. The third contact surface 241 is located at one end of the third lower side plate 2024 (for example, as shown in FIG. 8 , the third contact surface 241 can be located at the end of the third lower side plate 2024 facing the first spacer 2026). The third lower side plate 2024 has a second stepped surface 242 formed at the other end of the third contact surface 241. The third contact surface 241 is recessed into the outer wall surface on the other side of the second stepped surface 242, thereby forming an assembly recess on the outer side of the third lower side plate 2024 and adjacent to one end of the first lower side plate 2022. The assembly recess is used for assembly and connection with the first upper side plate 2012. The third contact surface 241 is used to contact and connect with the inner side wall of the first upper side plate 2012, and the second stepped surface 242 limits the other end of the first upper side plate 2012.

[0099] The assembly recess formed on the outer side of the first lower side panel 2022 is flush with the assembly recess formed on the outer side of the third lower side panel 2024, allowing for assembly and connection to the first upper side panel 2012. This allows the outer side surface of the first upper side panel 2012 to be flush with the side surface at the front end of the first lower side panel 2022 when the second upper sub-shell 2010 is assembled and connected to the lower shell, thereby smoothing the side edges of the optical module. In other words, in the disclosed embodiment, the depth of the assembly recess formed on the outer side of the first lower side panel 2022 can be the same as or similar to the thickness of the first upper side panel 2012; and the depth of the assembly recess formed on the outer side of the third lower side panel 2024 can be the same as or similar to the thickness of the first upper side panel 2012.

[0100] In some embodiments, the second lower side plate 2023 has a second contact surface 232 on its outer wall surface. The second contact surface 232 is located at the other end of the second lower side plate 2023 (for example, as shown in FIG. 9 , the second contact surface 232 can be located at the end of the second lower side plate 2023 facing the second spacer 2027). The second lower side plate 2023 has a third stepped surface 233 formed at one end of the second contact surface 232. The second contact surface 232 is recessed into the outer wall surface on one side of the third stepped surface 233, thereby forming an assembly recess on the outer side of the second lower side plate 2023 and near one end of the fourth lower side plate 2025. The assembly recess is used for assembly and connection with the second upper side plate 2013. The second contact surface 232 is used to contact and connect with the inner wall of the second upper side plate 2013, and the third stepped surface 233 limits one end of the second upper side plate 2013.

[0101] In some embodiments, the outer wall surface of the fourth lower side plate 2025 has a fourth contact surface 251, which is located at one end of the fourth lower side plate 2025. The fourth lower side plate 2025 forms a fourth step surface 252 at the other end of the fourth contact surface 251, so that the fourth contact surface 251 is recessed into the outer wall surface on one side of the fourth step surface 252, thereby forming an assembly recess on the outer side of the fourth lower side plate 2025 and near one end of the second lower side plate 2023. This assembly recess is used for assembly and connection with the second upper side plate 2013. The fourth contact surface 251 is used to contact and connect with the inner wall of the second upper side plate 2013, and the fourth step surface 252 limits the other end of the second upper side plate 2013.

[0102] The outer side of the second lower side panel 2023 forms an assembly recess, which in turn forms an assembly recess on the outer side of the fourth lower side panel 2025. This allows for assembly and connection between the second upper side panel 2013 and the second sub-upper housing 2010. This allows the outer side of the second upper side panel 2013 to be flush with the side surface of the front end of the second lower side panel 2023 when the second sub-upper housing 2010 is assembled and connected to the lower housing, thereby smoothing the side edges of the optical module. In other words, in the disclosed embodiment, the depth of the assembly recess formed on the outer side of the second lower side panel 2023 can be the same as or approximately the same as the thickness of the second upper side panel 2013; and the depth of the assembly recess formed on the outer side of the third lower side panel 2024 can be the same as or approximately the same as the thickness of the first upper side panel 2012.

[0103] In some embodiments, as shown in FIG8 , a first limiting platform 261 is further provided within the first compartment 2026, and as shown in FIG9 , a second limiting platform 271 is further provided within the second compartment 2027. One end of the first limiting platform 261 is connected to the first lower side plate 2022, and the other end of the first limiting platform 261 is connected to the third lower side plate 2024. One end of the second limiting platform 271 is connected to the second lower side plate 2023, and the other end of the second limiting platform 271 is connected to the fourth lower side plate 2025. A fifth contact surface 262 is provided on the outer wall of the first limiting platform 261. The fifth contact surface 262 is flush with the first contact surface 222 and the third contact surface 241. One end of the fifth contact surface 262 is connected to the first contact surface 222, and the other end is connected to the third contact surface 241. The fifth contact surface 262 is configured to contact and connect with the inner wall of the first upper side plate 2012, facilitating assembly and connection between the lower housing 202 and the first upper side plate 2012. The outer wall of the second limiting platform 271 has a sixth contact surface 272, which is flush with the second contact surface 232 and the fourth contact surface 251. One end of the sixth contact surface 272 is connected to the second contact surface 232, and the other end is connected to the fourth contact surface 251. The sixth contact surface 272 is used to contact and connect with the inner wall of the second upper side plate 2013, facilitating the assembly and connection between the lower housing 202 and the second upper side plate 2013. In some embodiments, the first limiting platform 261 and the second limiting platform 271 support the edge of the circuit board 300.

[0104] In some embodiments, a first limiting step 263 is provided on the side of the first limiting platform 261. The first limiting step 263 protrudes from the fifth contact surface 262 and is used to limit the side of the first upper side panel 2012. A second limiting step 273 is provided on the side of the second limiting platform 271. The second limiting step 273 protrudes from the sixth contact surface 272 and is used to limit the side of the second upper side panel 2013. The first limiting step 263 and the second limiting step 273 assist in the assembly of the second upper sub-shell 2010 and the lower shell 202. For example, one end of the first limiting step 263 extends to the first lower side panel 2022, and the other end of the first limiting step 263 extends to the third lower side panel 2024. The second limiting step 273 extends to the second upper side panel 2013, and the other end of the second limiting step 273 extends to the fourth lower side panel 2025.

[0105] Figure 10 is a schematic diagram (I) of the assembly of the first upper sub-shell and the lower shell of the optical module provided in an embodiment of the present disclosure, and Figure 11 is a schematic diagram (II) of the assembly of the first upper sub-shell and the lower shell of the optical module provided in an embodiment of the present disclosure. As shown in Figures 8-11, the first upper sub-shell 500 includes a first covering portion 510, a first connecting portion 520, and a second connecting portion 530. The first connecting portion 520 is located on one side of the first covering portion 510, and the second connecting portion 530 is located on the other side of the first covering portion 510. The first connecting portion 520 is connected to the first lower side plate 2022, and the second connecting portion 530 is connected to the second lower side plate 2023. The first connecting portion 520 and the second connecting portion 530 support the first covering portion 510, so that the first covering portion 510 is located above the bottom plate 2021.

[0106] An opening 512 is provided at one end of the first covering portion 510 . The opening 512 is located at the edge of one end of the first covering portion 510 and is used to guide the plug of the external optical fiber to facilitate the plugging and unplugging of the external optical fiber.

[0107] In some embodiments, the first upper sub-shell 500 further includes a second cover portion 540, which is located at the end of the first cover portion 510 near the electrical port. The first lower side plate 2022 and the second lower side plate 2023 support the second cover portion 540, positioning it above the front surface of the bottom plate 2021. The second upper sub-shell 2010 covers the second cover portion 540. For example, one side of the second cover portion 540 extends to the top of the first lower side plate 2022, and the other side of the second cover portion 540 extends to the top of the second lower side plate 2023. One end of the cover plate 2011 covers and connects to the second cover portion 540.

[0108] In some embodiments, the inner side of the first elastic sealing portion 111 contacts the top surface of the second covering portion 540 to seal the second upper sub-shell 2010 and the lower shell 202 through the second covering portion 540, thereby conveniently ensuring the electromagnetic shielding effect of the first elastic sealing portion 111.

[0109] In some embodiments, a first connecting member 521 is provided on the first connecting portion 520, and a second connecting member 224 is provided on the first lower side plate 2022. The first connecting member 521 connects to the second connecting member 224. The first connecting member 521 can be a connecting protrusion or a slot, and the second connecting member 224 can be a slot or a connecting protrusion. The first connecting member 521 and the second connecting member 224 are provided in correspondence with each other to achieve a snap-fit ​​connection between the first connecting member 521 and the second connecting member 224, facilitating the assembly and connection between the first upper sub-shell 500 and the lower shell 202. For example, the first connecting member 521 includes a first protrusion 5211 and a second protrusion 5212, and the second connecting member 224 includes a connecting slot 2241. The first protrusion 5211 and the second protrusion 5212 snap-fit ​​into the connecting slot 2241. Of course, in the disclosed embodiments, the first connecting member 521 is not limited to two protrusions and can also have other numbers, and the first connecting member 521 can include both a protrusion and a slot. In some embodiments, the second connecting member 224 may also be a slot corresponding one-to-one to the protrusion in the first connecting member 521 .

[0110] In some embodiments, a first protrusion 5211 is provided at one end of the first connecting portion 520, and a second protrusion 5212 is provided at the other end of the first connecting portion 520; the connecting groove 2241 extends along the length of the first lower side plate 2022. For example, a first recess 225 is provided on the outer wall of the first lower side plate 2022, and the connecting groove 2241 is disposed within the first recess 225. The first recess 225 is configured to ensure that the outer side surface of the first connecting portion 520 is flush with the outer wall of the first lower side plate 2022 when the first upper sub-shell 500 is assembled to the lower shell 202. The side edges of the first recess 225 also serve to limit the edge of the first connecting portion 520.

[0111] In some embodiments, the structure of the second connection portion 530 may refer to the structure of the first connection portion 520 , and the corresponding settings on the second lower side plate 2023 may refer to the settings on the first lower side plate 2022 .

[0112] Illustratively, a third connecting member 531 is provided on the second connecting portion 530, and a fourth connecting member 234 is provided on the second lower side plate 2023. The third connecting member 531 is connected to the fourth connecting member 234. The third connecting member 531 is a connecting protrusion or a slot, etc., and the fourth connecting member 234 is a slot or a connecting protrusion, etc. The third connecting member 531 and the fourth connecting member 234 are correspondingly provided to achieve a snap-fit ​​connection between the third connecting member 531 and the fourth connecting member 234, facilitating the assembly and connection between the first upper sub-shell 500 and the lower shell 202. Illustratively, the third connecting member 531 includes a third protrusion 5311 and a fourth protrusion 5312, and the fourth connecting member 234 includes a connecting slot 2341. The third protrusion 5311 and the fourth protrusion 5312 snap-fit ​​into the connecting slot 2341.

[0113] Illustratively, the third protrusion 5311 is provided at one end of the second connecting portion 530, and the fourth protrusion 5312 is provided at the other end of the second connecting portion 530. The connecting groove 2341 extends along the length of the second lower side plate 2023. Illustratively, a second recess 235 is provided on the outer wall of the second lower side plate 2023, and the connecting groove 2341 is disposed within the second recess 235. The second recess 235 is configured to ensure that the outer side surface of the second connecting portion 530 is flush with the outer wall of the second lower side plate 2023 when the first upper sub-shell 500 is assembled to the lower shell 202. The side edges of the second recess 235 also serve to limit the edge of the second connecting portion 530.

[0114] In some embodiments, the first sub-upper shell 500 also includes a bridging portion 550, which connects the first covering portion 510 and the second covering portion 540; the first covering portion 510 and the second covering portion 540 are not in the same plane, and the bridging portion 550 is used to achieve the transition from the first covering portion 510 to the second covering portion 540.

[0115] The top of the first lower side panel 2022 is provided with a first supporting surface 226, a first transition surface 227, and a second supporting surface 228. One end of the first transition surface 227 is connected to the first supporting surface 226, and the other end of the first transition surface 227 is connected to the second supporting surface 228. At the top of the first lower side panel, the first supporting surface 226 is located at a higher height than the second supporting surface 228. The first transition surface 227 is used to achieve a transitional connection between the supporting surfaces at different heights on the top of the first lower side panel 2022. The first supporting surface 226 supports one side of the bottom surface of the first covering portion 510, the first transition surface 227 supports one side of the bottom surface of the connecting bridge portion 550, and the second supporting surface 228 supports one side of the bottom surface of the second covering portion 540. This ensures that the top of the first lower side panel 2022 fully supports the first sub-upper shell 500.

[0116] The top of the second lower side panel 2023 is provided with a third support surface 236, a second transition surface 237, and a fourth support surface 238. One end of the second transition surface 237 is connected to the third support surface 236, and the other end of the second transition surface 237 is connected to the fourth support surface 238. At the top of the second lower side panel 2023, the third support surface 236 is located at a higher height than the fourth support surface 238. The second transition surface 237 is used to achieve a transitional connection between support surfaces at different heights on the top of the second lower side panel 2023. The third support surface 236 supports the other side of the bottom surface of the first covering portion 510, the second transition surface 237 supports the other side of the bottom surface of the connecting bridge portion 550, and the fourth support surface 238 supports the other side of the bottom surface of the second covering portion 540. This ensures that the top of the first lower side panel 2022 fully supports the first sub-upper shell 500.

[0117] Figure 12 is a cross-sectional view 1 of the optical module provided in an embodiment of the present disclosure, Figure 13 is a cross-sectional view 2 of the optical module provided in an embodiment of the present disclosure, and Figure 14 is a cross-sectional view 3 of the optical module provided in an embodiment of the present disclosure. Figure 12 shows the assembly relationship between the cover plate 2011 and the second covering portion 540, as well as the assembly relationship between the elastic sealing portion on the second upper sub-shell 2010 and the second covering portion 540, the first lower side plate 2022, and the second lower side plate 2023. Figure 13 shows the assembly relationship between the second upper sub-shell 2010 and the lower shell 202. Figure 14 shows the assembly relationship between the circuit board 300 and the second upper sub-shell 2010 and the lower shell 202.

[0118] Figure 15 is a schematic diagram of the structure of a clamping claw in an optical module according to an embodiment of the present disclosure, and Figure 16 illustrates the clamping claw in use according to an embodiment of the present disclosure. In some embodiments, a first fixing portion 421 is provided on one side of the clamping claw 420, and a second fixing portion 422 is provided on the other side of the clamping claw 420. The first fixing portion 421 is connected to the inner sidewall of the first lower side plate 2022, and the second fixing portion 422 is connected to the inner sidewall of the second lower side plate 2023. Exemplarily, the clamping claw 420 is embedded in the lower housing 202 via the first fixing portion 421 and the second fixing portion 422, thereby securing the fiber optic adapter 410 along the length and width of the optical module.

[0119] In some embodiments, the thickness of the front end of the first lower side plate 2022 is greater than the thickness of the rear end of the first lower side plate 2022, and the thickness of the front end of the second lower side plate 2023 is greater than the thickness of the rear end of the second lower side plate 2023. This makes it convenient for the first lower side plate 2022 and the second lower side plate 2023 to fix the claws 420 and ensure the firmness of the fixing claws 420.

[0120] Figure 17 is a schematic diagram of the structure of the first sub-upper housing in an optical module provided by an embodiment of the present disclosure. In some embodiments, a claw fixing portion 511 is provided on the first covering portion 510. The claw fixing portion 511 is used to connect to the top of the claw 420 to apply force to the claw 420 from the top to fix the optical fiber adapter 410 in the height direction of the optical module. Exemplarily, the claw fixing portion 511 includes a first fixing protrusion 5111 and a second fixing protrusion 5112. The first fixing protrusion 5111 and the second fixing protrusion 5112 are elastic protrusions, such as protrusions formed by springs; the bottoms of the first fixing protrusion 5111 and the second fixing protrusion 5112 contact the top of the connecting claw 420. When the first sub-upper shell 500 is assembled and connected with the lower shell 202, the first fixing protrusion 5111 and the second fixing protrusion 5112 squeeze the top of the claw 420 and deform, reducing the damage caused to each other when the first fixing protrusion 5111 and the claw 420 are in hard contact and when the second fixing protrusion 5112 and the claw 420 are in hard contact.

[0121] It can be understood that in some examples, the first fixing protrusion 5111 and the second fixing protrusion 5112 can also be set on the top of the claw 420. For example, the spring piece can be fixed to the top of the claw 420 by a bolt, a screw or a screw; in this way, after the first sub-upper shell 500 is assembled and connected with the lower shell 202, the first fixing protrusion 5111 and the second fixing protrusion 5112 are in contact and connected to the first sub-upper shell 500, thereby fixing the claw 420.

[0122] Figure 18 is a fourth cross-sectional view of an optical module provided in an embodiment of the present disclosure, illustrating the assembly relationship between the claw and the first upper sub-shell. In some embodiments, the top of the claw 420 is provided with a first fixing groove 423 and a second fixing groove 424. The first fixing protrusion 5111 is embedded in the first fixing groove 423 and abuts against the first fixing groove 423, while the second fixing protrusion 5112 is embedded in the second fixing groove 424 and abuts against the second fixing groove 424. The first fixing groove 423 and the second fixing groove 424 facilitate the first upper sub-shell 500 to squeeze the fixed claw 420 through the first fixing protrusion 5111 and the second fixing protrusion 5112, thereby ensuring that the first upper sub-shell 500 effectively secures the claw 420.

[0123] In some other optional examples, the first fixing groove 423 and the second fixing groove 424 may also be provided on the first covering portion 510. For example, when the first fixing protrusion 5111 and the second fixing protrusion 5112 are provided on the top of the claw 420, the first fixing groove 423 and the second fixing groove 424 may be provided on the first covering portion 510. When the first fixing groove 423 and the second fixing groove 424 are provided on the first covering portion 510, the first fixing groove 423 and the second fixing groove 424 may be grooves or through holes.

[0124] In some examples, the first fixing groove 423 and the second fixing groove 424 can be arranged along the width direction of the claw 420 (ie, the width direction of the optical module 200 or the left-right direction in FIG. 18 ), which can improve the stability of fixing the claw 420 .

[0125] Figure 19 is another structural diagram of the optical module provided in an embodiment of the present disclosure. As shown in Figure 19, a locking member 211 is provided on the outer wall of the base plate 2021, and the locking member 211 is used to lock and connect to the host computer cage. The unlocking component 600 includes a handle 610 and an unlocker 620 (see Figure 22 of the subsequent embodiment of the present disclosure); the handle 610 is connected to the optical port end of the lower housing 202; the handle 610 rotates to push the unlocker 620 toward the locking member 211, causing the unlocker 620 to lift the host computer cage next to the locking member 211, thereby releasing the lock between the locking member 211 and the host computer cage. The optical module 200 also includes a lower cover plate 700, which is disposed at the bottom of the lower housing 202 and covers the lower housing 202 from the opposite side of the base plate 2021; the lower cover plate 700 and the base plate 2021 form a third accommodating cavity. The locking member 211 is located at the end of the third accommodating cavity (eg, the end facing the electrical port) and outside the third accommodating cavity. The unlocker 620 is located in the third accommodating cavity and can move along the extension direction of the third accommodating cavity.

[0126] Figure 20 is a schematic diagram (I) of the exploded lower housing and lower cover of the optical module provided in an embodiment of the present disclosure, and Figure 21 is a schematic diagram (II) of the exploded lower housing and lower cover of the optical module provided in an embodiment of the present disclosure. The lower cover 700 includes a third covering portion 710, a third connecting portion 720, and a fourth connecting portion 730. The third connecting portion 720 is disposed on one side of the third covering portion 710, and the fourth connecting portion 730 is disposed on the other side of the third covering portion 710. The third connecting portion 720 is connected to the first lower side plate 2022, and the fourth connecting portion 730 is connected to the second lower side plate 2023. The third connecting portion 720 and the fourth connecting portion 730 support the third covering portion 710, so that the third covering portion 710 is located above the bottom surface of the base plate 2021.

[0127] In some embodiments, the lower cover 700 is a sheet metal structure, so that the lower cover 700 is snap-fitted to the lower housing 202. Compared with connecting the lower cover 700 and the lower housing 202 with screws, the snap-fitting connection of the lower cover 700 to the lower housing 202 simplifies the assembly of the optical module.

[0128] In some embodiments, a third recess 229 is formed on the outer wall of the first lower side plate 2022. The third connecting portion 720 is engaged with the third recess 229. The side edges of the third recess 229 limit the edge of the third connecting portion 720. The third recess 229 facilitates aligning the outer side surface of the third connecting portion 720 with the outer wall of the first lower side plate 2022. A fifth connecting member 721 is provided on the third connecting portion 720, and a sixth connecting member 2291 is provided within the third recess 229. The fifth connecting member 721 is configured as a connecting protrusion or a slot, while the sixth connecting member 2291 is configured as a slot or a connecting protrusion. The fifth connecting member 721 and the sixth connecting member 2291 are correspondingly configured to achieve an engaging connection between the fifth connecting member 721 and the sixth connecting member 2291, facilitating assembly and connection between the lower cover 700 and the lower housing 202. The specific configurations of the fifth connecting member 721 and the sixth connecting member 2291 can be referenced to the first connecting member 521 and the second connecting member 224. For example, the fifth connecting member 721 includes a first protrusion and a second protrusion, and the sixth connecting member 2291 includes a connecting groove. For example, the sixth connecting member 2291 includes a first connecting groove and a second connecting groove, with the first protrusion being configured to engage with the first connecting groove and the second protrusion being configured to engage with the second connecting groove.

[0129] In some embodiments, a fourth recess 239 is formed on the outer wall of the second lower side plate 2023. The fourth connecting portion 730 is engaged with the fourth recess 239. The side edges of the fourth recess 239 limit the edge of the fourth connecting portion 730. The fourth recess 239 facilitates aligning the outer side of the fourth connecting portion 730 with the outer wall of the second lower side plate 2023. A seventh connecting member 731 is provided on the fourth connecting portion 730, and an eighth connecting member 2391 is provided within the fourth recess 239. The seventh connecting member 731 is connected to the eighth connecting member 2391. The seventh connecting member 731 is a connecting protrusion or a slot, and the eighth connecting member 2391 is a slot or a connecting protrusion. The seventh connecting member 731 and the eighth connecting member 2391 are correspondingly provided to achieve an engaging connection between the seventh connecting member 731 and the eighth connecting member 2391, facilitating the assembly and connection of the lower cover 700 and the lower housing 202. The detailed configurations of the seventh connecting member 731 and the eighth connecting member 2391 can be found in the third connecting member 531 and the fourth connecting member 234. For example, the seventh connecting member 731 includes a first protrusion and a second protrusion, and the eighth connecting member 2391 includes a connecting groove. For example, the eighth connecting member 2391 includes a first connecting groove and a second connecting groove, with the first protrusion being configured to engage with the first connecting groove and the second protrusion being configured to engage with the second connecting groove.

[0130] In some embodiments, as shown in FIG20 , the unlocking component 600 includes an unlocker restoring member 630, one end of which is connected to the unlocker 620, and the other end of which is connected to the base plate 2021. When the handle 610 is rotated, the handle 610 overcomes the force exerted by the unlocker restoring member 630 on the unlocker 620 and pushes the unlocker 620 toward the locking member 211. When the handle 610 is released, the unlocker restoring member 630 is restored, and the unlocker 620 is restored under the force of the unlocker restoring member 630.

[0131] Exemplarily, the unlocker return member 630 includes a spring 631. In other examples, the unlocker return member 630 may also be an elastic member such as an elastic sponge column or elastic silicone; or, in some examples, the unlocker return member 630 may also be two magnets with opposite poles, one of which is set on the unlocker 620 and the other is set on the base plate 2021; it is understood that when the unlocker return member 630 is two magnets with opposite poles, one magnet set on the unlocker 620 can be set close to the optical port, and the other magnet set on the base plate 2021 can be set close to the electrical port; that is, the unlocker 620 uses the repulsive force between the two magnets to return; it is understood that in some examples, the unlocker return member 630 may also be two magnets with opposite poles, in which case one magnet set on the base plate 2021 can be set close to the optical port, and the other magnet set on the unlocker 620 can be set close to the electrical port.

[0132] Figure 22 is an exploded schematic diagram of the unlocking component and lower housing of the optical module provided by an embodiment of the present disclosure. As shown in Figure 22, the unlocking mechanism 620 is provided with a receiving slot 621, which extends along the length of the unlocking mechanism 620. A first positioning post 622 is provided at one end of the receiving slot 621, and a second positioning post 212 is provided on the base plate 2021, which is located within the receiving slot 621. One end of a spring 631 is connected to the first positioning post 622, and the other end of the spring 631 is connected to the second positioning post 212.

[0133] In some embodiments, a guide groove 213 is provided on the base plate 2021, and a second positioning post 212 is provided at the end of the guide groove 213. The guide groove 213 is located below the receiving groove 621 (using the placement angle of the optical module shown in FIG22 as an example), and the guide groove 213 supports the spring 631. The guide groove 213 is used to guide the deformation of the spring 631 during compression, thereby ensuring that the spring 631 deforms evenly when compressed, thereby ensuring that the unlocker 620 returns to its original position when the spring 631 returns.

[0134] In some embodiments, a first limiting portion 214 and a second limiting portion 215 are provided at the bottom of the base plate 2021. The first limiting portion 214 and the second limiting portion 215 form an unlocker receiving slot, within which the unlocker 620 is disposed. The first limiting portion 214 limits the unlocker 620 on the left side, while the second limiting portion 215 limits the unlocker 620 on the right side, thereby ensuring that the movement trajectory of the unlocker 620 is relatively fixed. For example, the first limiting portion 214 and the second limiting portion 215 are respectively limiting bars that extend along the length of the lower housing 202.

[0135] In some embodiments, a first support portion 216 and a second support portion 217 are further provided at the bottom of the bottom plate 2021. The first support portion 216 is located on the left side of the first limiting portion 214, and the second support portion 217 is located on the right side of the second limiting portion 215. The first support portion 216 and the second support portion 217 support the third covering portion 710. Exemplarily, the first support portion 216 and the second support portion 217 are provided at the edge of the bottom surface of the bottom plate 2021.

[0136] In some embodiments, a third limiting portion 218 and a fourth limiting portion 219 are further provided at the bottom of the bottom plate 2021. One end of the third limiting portion 218 is connected to the end of the first limiting portion 214 and extends toward one edge of the bottom plate 2021. One end of the fourth limiting portion 219 is connected to the end of the second limiting portion 215 and extends toward the other edge of the fourth limiting portion 219. A third spacer 2100 is formed between the third limiting portion 218 and the fourth limiting portion 219. The third limiting portion 218 and the fourth limiting portion 219 are used to limit the edge of the other end of the third covering portion 710.

[0137] In some embodiments, the lower cover 700 further includes a positioning portion 740, one end of which is connected to the other end of the third covering portion 710. An edge of one side of the positioning portion 740 contacts and connects to an end of the third limiting portion 218, while an edge of the other side of the positioning portion 740 contacts and connects to an end of the fourth limiting portion 219, so that the positioning portion 740 is retained within the third compartment 2100. The positioning portion 740 facilitates the positioning and connection between the lower cover 700 and the lower housing 202.

[0138] In some embodiments, a handle mounting portion 206 is provided at one end of the lower housing 202. The handle mounting portion 206 connects the base plate 2021, the first lower side plate 2022, and the second lower side plate 2023. The handle 610 is sleeved on the handle mounting portion 206 and is rotatable thereon. For example, the handle mounting portion 206 includes a first handle limiting post 2061 and a second handle limiting post 2062. The first handle limiting post 2061 has a first handle limiting slot 2063 formed therein, and the second handle limiting post 2062 has a second handle limiting slot 2064 formed therein. The first handle limiting slot 2063 and the second handle limiting slot 2064 connect to the handle 610. The handle 610 rotates around the first handle limiting post 2061 and the second handle limiting post 2062 in the first handle limiting slot 2063 and the second handle limiting slot 2064.

[0139] In some embodiments, the lower cover 700 further includes a sealing portion connected to one end of the third covering portion 710, such that the sealing portion is located at the end of the third covering portion 710. The sealing portion cooperates with the end surface of the handle mounting portion 206 to block the first handle limiting column 2061 and the second handle limiting column 2062, effectively preventing the handle 610 from disengaging from the first handle limiting groove 2063 and the second handle limiting groove 2064.

[0140] Figure 23 is a schematic diagram of the structure of an unlocker in an optical module provided by an embodiment of the present disclosure. In some embodiments, a pusher 623 is provided at one end of the unlocker 620. The handle 610 contacts the pusher 623. Rotating the handle 610 pushes the unlocker 620 to move via the pusher 623. Exemplarily, the pusher 623 is a protrusion formed on one end of the unlocker 620. A clearance hole 711 is provided on the third cover portion 710, and the pusher 623 is located within the clearance hole 711. When the lock 620 moves, the pusher 623 can move within the clearance hole 711.

[0141] In some embodiments, the other end of the unlocker 620 is provided with an expansion portion 624, which is used to unlock the host computer cage and the locking member 211. Exemplarily, the expansion portion 624 includes an expansion slot 625, which is used to avoid the locking member 211. When unlocking the optical module, the other end of the unlocker 620 moves to the locking member 211, avoiding the locking member 211 through the expansion slot 625, so that the unlocker 620 can fully unlock the locking member 211 and the host computer cage. In some examples, as shown in Figure 23, the expansion slot 625 is located in the middle of the expansion portion 264. That is, in the embodiments of the present disclosure, the expansion portion 264 can unlock the locking member 211 from both sides of the locking member 211. In this way, the unlocking force provided by the expansion portion 264 is balanced on both sides of the locking member 211, effectively protecting the cage and the locking member 211.

[0142] FIG24 is a fifth cross-sectional view of the optical module provided in an embodiment of the present disclosure, FIG25 is a sixth cross-sectional view of the optical module provided in an embodiment of the present disclosure, and FIG26 is a seventh cross-sectional view of the optical module provided in an embodiment of the present disclosure. FIG25-26 illustrate a process of changing the state of the unlocking component in use. In some embodiments, when the unlocking component 600 is not in use, the handle 610 is sleeved on the handle mounting portion 206 and the handle is in a vertical position. The handle 610 is rotated, and one side of the handle 610 is disengaged from the handle mounting portion 206. The handle 610 rotates around the first handle limiting column 2061 and the second handle limiting column 2062. The other side of the handle 610 pushes the push portion 623 to move the unlocking device 620 toward the locking member 211. The handle 610 rotates to a horizontal position, and the end of the unlocking device 620 moves to the locking member 211, unlocking the host computer cage and the locking member 211. When the handle 610 is rotated to move the unlocker 620 toward the locking member 211, the unlocker 620 compresses the spring 631. The force exerted by the handle 610 on the push portion 623 overcomes the elastic force of the spring 631. When the handle 610 is released or the force applied to the handle 610 is reduced, the spring 631 returns to its original position, causing the unlocker 620 to move away from the locking member 211, allowing the handle 610 to be reattached to the handle mounting portion 206.

[0143] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present disclosure.

Claims

1. An optical module, comprising: The lower shell comprises a bottom plate, a first lower side plate and a third lower side plate located on one side of the bottom plate, and a second lower side plate and a fourth lower side plate located on the other side of the bottom plate; a first interval is set between the first lower side plate and the third lower side plate, a second interval is set between the second lower side plate and the fourth lower side plate, the first lower side plate and the third lower side plate form assembly recesses on both sides of the first interval, and the second lower side plate and the fourth lower side plate form assembly recesses on both sides of the second interval; A first upper sub-shell, which is engaged and connected with the first lower side plate and the second lower side plate, so that the first upper sub-shell and the lower shell form a first accommodating cavity; The second upper sub-shell comprises a cover plate, a first upper side plate located on one side of the cover plate, and a second upper side plate located on the other side of the cover plate; one end of the cover plate covers the first upper sub-shell, and the first upper side plate and the second upper side plate cooperate to connect the assembly recesses on both sides of the lower shell, so that the second upper sub-shell and the lower shell form a second accommodating cavity, and the second accommodating cavity is connected to the first accommodating cavity; The circuit board has an edge on one side extending to the first interval, and / or an edge on the other side extending to the second interval.

2. The optical module according to claim 1, wherein: The first upper sub-shell comprises a first covering portion, a first connecting portion located at one side of the first covering portion, a second connecting portion located at the other side of the first covering portion, and a second covering portion located at one end of the first covering portion; The first lower side plate and the second lower side plate support the first covering portion and the second covering portion, so that the first covering portion is located above the bottom plate, and one end of the second sub-upper shell covers and connects to the second covering portion; the first connecting portion is connected to the first lower side plate, and the second connecting portion is connected to the second lower side plate; A first connecting member is disposed on the first connecting portion, a first recess is formed on the outer side wall of the first lower side plate, a second connecting member is disposed in the first recess, and the first connecting member is connected to the second connecting member; A third connecting member is disposed on the second connecting portion, a second recess is formed on the outer side wall of the second lower side plate, a fourth connecting member is disposed in the second recess, and the third connecting member is connected to the fourth connecting member; The first connecting member includes a first protrusion and a second protrusion, and the second connecting member includes a connecting groove; the first protrusion and the second protrusion are clamped and connected to the connecting groove, so that the first connecting part is assembled and connected to the first lower side plate.

3. The optical module according to claim 2, wherein: The first upper sub-shell further includes a bridging portion, the bridging portion connecting the first covering portion and the second covering portion; A first supporting surface, a first transition surface, and a second supporting surface are arranged on the top of the first lower side plate. On the first lower side plate, the height position of the first supporting surface is higher than the height position of the second supporting surface, and the first transition surface transitionally connects the first supporting surface and the second supporting surface; A third supporting surface, a second transition surface and a fourth supporting surface are arranged on the top of the second lower side plate. On the second lower side plate, the height position of the third supporting surface is higher than the height position of the fourth supporting surface, and the second transition surface transitionally connects the third supporting surface and the fourth supporting surface; The first supporting surface and the third supporting surface are connected to support the first covering portion, the second supporting surface and the fourth supporting surface are connected to support the second covering portion, and the first transition surface and the second transition surface are connected to support the bridging portion; The second sub-upper shell includes a cover plate, one end of the cover plate includes a first elastic sealing portion, the first elastic sealing portion covers the second covering portion, and an end portion of the first elastic sealing portion extends to an edge of the bridging portion.

4. The optical module according to claim 2, wherein: It also includes an optical fiber adapter and a claw, wherein the claw is sleeved on the optical fiber adapter and is configured to support and fix the optical fiber adapter; A claw fixing portion is disposed on the first covering portion, and the claw fixing portion contacts and connects with the claw; A first fixing groove and a second fixing groove are arranged on the top of the clamping claw, and the clamping claw fixing portion includes a first fixing protrusion and a second fixing protrusion; the first fixing protrusion is abutted and connected to the first fixing groove, and the second fixing protrusion is abutted and connected to the second fixing groove.

5. The optical module according to claim 1, wherein: A first positioning member is disposed in the first interval, and a second positioning member is disposed in the second interval; the first positioning member and the second positioning member are positioned and connected to the circuit board; A circuit board fixing member is disposed on the first upper side plate and the second upper side plate respectively, and the circuit board fixing member squeezes and fixes the circuit board; The circuit board fixing member includes a fixing connection portion and a contact portion; one end of the fixing connection portion is connected to the first upper side plate, and the other end of the fixing connection portion is connected to the contact portion, and the contact portion is pressed and contacted with the top surface of the circuit board.

6. The optical module according to claim 1, wherein: A first assembly part is arranged on the inner side of the first upper side plate, and a second assembly part is arranged on the outer side wall of the first lower side plate and the outer side wall of the third lower side plate, and the first assembly part is assembled and connected with the corresponding second assembly part; A third assembly part is arranged on the inner side of the second upper side plate, and a fourth assembly part is arranged on the outer side wall of the second lower side plate and the outer wall of the fourth lower side plate, and the third assembly part is assembled and connected with the corresponding fourth assembly part; The first assembly part includes one of an assembly protrusion and an assembly groove, and the second assembly part includes the other of the assembly protrusion and the assembly groove, and the assembly protrusion is clamped and connected to the assembly groove.

7. The optical module according to claim 1, wherein: It also includes a lower cover plate and an unlocking component, a locking piece is arranged on the outer wall of the bottom plate, and the locking piece is configured to be locked and connected to the upper computer cage; The lower cover plate includes a third covering portion, a third connecting portion located on one side of the third covering portion, and a fourth connecting portion located on the other side of the third covering portion; the third covering portion is located on the outer side of the bottom plate and forms a third accommodating cavity with the bottom plate; the third connecting portion is connected to the first lower side plate, and the fourth connecting portion is connected to the second lower side plate; The unlocking component includes a handle and an unlocker, the handle is embedded in the end connected to the lower shell, the unlocker is located in the third accommodating cavity, and the handle rotates to push the unlocker to move toward the locking piece to unlock the locking piece and the upper computer cage.

8. The optical module according to claim 7, wherein: A fifth connecting member is disposed on the third connecting portion, a third recess is formed on the outer side wall of the first lower side plate, a sixth connecting member is disposed in the third recess, and the fifth connecting member is connected to the sixth connecting member; A seventh connecting member is disposed on the fourth connecting portion, a fourth recess is formed on the outer side wall of the second lower side plate, an eighth connecting member is disposed in the fourth recess, and the seventh connecting member is connected to the eighth connecting member; The unlocking component further includes an unlocker restoring member, one end of which is connected to the unlocker, and the other end of which is connected to the bottom plate; the handle overcomes the force applied by the unlocker restoring member to the unlocker and pushes the unlocker, and the force applied by the unlocker restoring member to the unlocker causes the unlocker to restore; The unlocker return member includes a spring, a receiving groove is provided on the unlocker, a first positioning column is provided at one end of the receiving groove, a second positioning column is provided on the bottom plate, and the second positioning column is located in the receiving groove; The spring is located in the accommodating groove, and one end of the spring is connected to the first positioning column, and the other end of the spring is connected to the second positioning column.

9. The optical module according to claim 7, wherein: A relief hole is formed at one end of the third covering part, a pushing part is provided at one end of the unlocking component, and the pushing part is located in the relief hole; the handle contacts and connects with the pushing part, and the unlocker is moved by pushing the pushing part; A handle mounting portion is provided at one end of the lower housing, the handle mounting portion is connected to the bottom plate, the first lower side plate and the second lower side plate, and the handle is sleeved on the handle mounting portion; The handle mounting portion is provided with a first handle limiting column and a second handle limiting column, the first handle limiting column is provided with a first handle limiting groove, the second handle limiting column is provided with a second handle limiting groove, and the first handle limiting groove and the second handle limiting groove are connected to the handle; The lower cover plate further comprises a sealing portion, the sealing portion is located at one end of the third covering portion, and the sealing portion is cooperatively connected to an end surface of the handle mounting portion; A first supporting portion and a second supporting portion are provided at the bottom edge of the bottom plate, the first supporting portion and the second supporting portion are located at the edge of the bottom plate, and the first supporting portion and the second supporting portion support and connect the third covering portion; A first limiting portion and a second limiting portion are further provided on the bottom plate, wherein the first limiting portion and the second limiting portion are located between the first supporting portion and the second supporting portion, and the first limiting portion and the second limiting portion form an unlocker limiting groove, and the unlocker is located in the unlocker limiting groove; A third limiting portion and a fourth limiting portion are further provided on the bottom plate, a third interval is provided between the first limiting portion and the fourth limiting portion, and the third interval is located at an end of the first limiting portion and an end of the second limiting portion; The lower cover plate further includes a positioning portion, which is located at the other end of the third covering portion. The other end of the third covering portion is cooperatively connected to the third limiting portion and the fourth limiting portion, and the positioning portion is located in the third interval.

10. An optical module, comprising: The lower shell comprises a bottom plate, a first lower side plate and a third lower side plate located on one side of the bottom plate, and a second lower side plate and a fourth lower side plate located on the other side of the bottom plate; a first interval is set between the first lower side plate and the third lower side plate, a second interval is set between the second lower side plate and the fourth lower side plate, the first lower side plate and the third lower side plate form assembly recesses on both sides of the first interval, and the second lower side plate and the fourth lower side plate form assembly recesses on both sides of the second interval; a locking piece is set on the outer wall of the bottom plate, and the locking piece is configured to lock and connect the upper computer cage; A first upper sub-shell, covering and connecting the first lower side plate and the second lower side plate, so that the first upper sub-shell and the lower shell form a first accommodating cavity; A second upper sub-shell, one end of which covers and connects the first lower side plate, the second lower side plate and the first upper sub-shell, and the other end of which covers and connects the third lower side plate and the fourth lower side plate, so that the second upper sub-shell and the lower shell form a second accommodating cavity, and the second accommodating cavity is connected to the first accommodating cavity; A lower cover plate, located below the lower shell, covers and connects the first lower side plate and the second lower side plate, so that the lower cover plate and the bottom plate form a third accommodating cavity; The unlocking component includes a handle and an unlocker; the handle is sleeved on one end of the lower shell, and the unlocker is arranged in the third accommodating cavity; the handle rotates to push the unlocker to move toward the locking piece to unlock the locking piece and the upper computer cage.

Images