Optical module

Abstract

The optical module provided by the utility model comprises a circuit board, an upper shell, a lower shell and a first cushion block, a first assembling face and a second assembling face are formed on the two sides of the lower shell respectively so as to be connected with the upper shell in a matched mode. A first groove is formed between the first assembling face and the second assembling face, and a first bearing face and a second bearing face are formed on the two sides of the first groove respectively. The first bearing surface is away from the upper shell relative to the first assembly surface, and the second bearing surface is away from the upper shell relative to the second assembly surface. The surface, facing the upper shell, of the first cushion block is far away from the upper shell relative to the first bearing face and the second bearing face, and the first cushion block is lower than the first bearing face and the second bearing face. When the optical fiber ribbon protrudes upwards or is bent, the first bearing surface and the second bearing surface can provide a bearing surface with a lower position for the optical fiber ribbon, so that the optical fiber ribbon can be placed on the first bearing surface or the second bearing surface with the lower position, the optical fiber ribbon can be prevented from being covered or broken by the upper shell, and the optical fiber ribbon is protected.

Description

Technical Field

[0001] The present disclosure relates to the field of optical communication technology, and in particular to an optical module. Background Art

[0002] With the development of new services and application models such as cloud computing, mobile Internet, and video, the advancement of optical communication technology has become increasingly important. In optical communication technology, optical modules, as one of the key components in optical communication equipment, can realize the conversion of optical and electrical signals. In the development of optical communication technology, the data transmission rate of optical modules is required to be continuously improved. Utility Model Content

[0003] The embodiment of the present disclosure provides an optical module to prevent an optical fiber ribbon from being covered and compressed.

[0004] The optical module provided in the embodiment of the present disclosure includes:

[0005] Circuit boards;

[0006] An upper shell is buckled on a surface of the circuit board;

[0007] A lower shell is buckled on the other surface of the circuit board, and a first assembly surface and a second assembly surface are respectively formed on both sides of the lower shell to be matched with the upper shell; a first groove is formed between the first assembly surface and the second assembly surface, and a first receiving surface and a second receiving surface are respectively formed on both sides of the first groove, the first receiving surface is away from the upper shell relative to the first assembly surface, and the second receiving surface is away from the upper shell relative to the second assembly surface; the height difference between the first bearing surface and the first assembly surface, and the height difference between the second bearing surface and the second assembly surface are respectively greater than the diameter of the optical fiber ribbon;

[0008] The first cushion block has the optical fiber ribbon disposed on its surface. The first cushion block is embedded in the first groove. The surface of the first cushion block facing the upper shell is away from the upper shell relative to the first receiving surface and the second receiving surface.

[0009] The optical module provided by the embodiment of the present disclosure includes a circuit board, an upper shell, a lower shell and a first cushion block. A first assembly surface and a second assembly surface are formed on both sides of the lower shell to cooperate with the upper shell. A first groove is formed between the first assembly surface and the second assembly surface, and a first receiving surface and a second receiving surface are formed on both sides of the first groove. The first receiving surface is away from the upper shell relative to the first assembly surface, and the second receiving surface is away from the upper shell relative to the second assembly surface, so the position of the first receiving surface is lower than the first assembly surface, and the position of the second receiving surface is lower than the second assembly surface. An optical fiber ribbon is placed on the surface of the first cushion block, and the first cushion block is embedded in the first groove. The surface of the first cushion block facing the upper shell is away from the upper shell relative to the first receiving surface and the second receiving surface, so the position of the first cushion block is lower than the first receiving surface and the second receiving surface. Since the position of the first cushion block is lower than the first receiving surface and the second receiving surface, the position of the first receiving surface is lower than the first receiving surface and the second receiving surface, and the position of the second receiving surface is lower than the second receiving surface, the optical fiber ribbon on the surface of the first cushion block is closer to the first receiving surface and the second receiving surface, and away from the first assembly surface and the second assembly surface that cooperate with the upper shell. When the optical fiber ribbon bulges or bends upward, the first receiving surface and the second receiving surface can provide a lower bearing surface for the optical fiber ribbon, so that the optical fiber ribbon can be placed on the first receiving surface or the second receiving surface, rather than on the first assembly surface or the second assembly surface that is matched with the upper shell, thereby preventing the optical fiber ribbon from being covered or broken by the upper shell. At the same time, the height difference between the first bearing surface and the first assembly surface, and the height difference between the second bearing surface and the second assembly surface are respectively greater than the diameter of the optical fiber ribbon, so that the optical fiber ribbon can be completely accommodated in the step wall formed by the first receiving surface and the first assembly surface, and there is a gap between the optical fiber ribbon and the upper shell, thereby preventing the upper shell from touching the optical fiber ribbon, thereby protecting the optical fiber ribbon. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the present disclosure, the following briefly introduces the drawings used in some embodiments of the present disclosure. Obviously, the drawings described below are only drawings of some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can also be obtained based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams, and are not limitations on the actual size of the product involved in the embodiments of the present disclosure, the actual process of the method, the actual timing of the signal, etc.

[0011] Figure 1 A partial architecture diagram of an optical communication system provided according to some embodiments of the present disclosure;

[0012] Figure 2 A partial structural diagram of a host computer provided according to some embodiments of the present disclosure;

[0013] Figure 3 is a structural diagram of an optical module according to some embodiments;

[0014] Figure 4 is an exploded view of an optical module according to some embodiments;

[0015] Figure 5 An internal exploded view of an optical module provided according to some embodiments of the present disclosure;

[0016] Figure 6 A cross-sectional structural diagram of an optical module provided according to some embodiments of the present disclosure;

[0017] Figure 7 An assembly diagram of an optical fiber bracket and a lens assembly provided according to some embodiments of the present disclosure;

[0018] Figure 8 A structural diagram of a lens assembly provided according to some embodiments of the present disclosure;

[0019] Fig. 9 A cross-sectional view of an optical module provided according to some embodiments of the present disclosure;

[0020] Fig.10 A cross-sectional exploded view of an optical module provided according to some embodiments of the present disclosure;

[0021] Fig.11 A structural diagram of an upper shell provided according to some embodiments of the present disclosure;

[0022] Fig.12 A lower shell surface mounting structure provided according to some embodiments of the present disclosure Figure 1 ;

[0023] Fig.13 A lower shell surface assembly decomposition method provided according to some embodiments of the present disclosure Figure 1 ;

[0024] Fig.14 A side cross-section of an optical module provided according to some embodiments of the present disclosure Figure 1 ;

[0025] Fig.15 A side cross-section of an optical module provided according to some embodiments of the present disclosure Figure 2

[0026] Fig.16 A side view of a lower shell provided according to some embodiments of the present disclosure Figure 1 ;

[0027] Fig.17 A lower shell surface mounting structure provided according to some embodiments of the present disclosure Figure 2 ;

[0028] Fig.18A lower shell surface assembly decomposition method provided according to some embodiments of the present disclosure Figure 2 ;

[0029] Fig.19 A side view of a lower shell provided according to some embodiments of the present disclosure Figure 2 ;

[0030] Fig. 20 A side view of a lower shell provided according to some embodiments of the present disclosure Figure 3 ;

[0031] Fig.21 A structural diagram of an interface claw provided according to some embodiments of the present disclosure;

[0032] Fig. 22 An exploded view of an interface claw provided according to some embodiments of the present disclosure;

[0033] Fig.23 A cross-sectional structural diagram of an interface claw provided according to some embodiments of the present disclosure;

[0034] Fig.24 It is a cross-sectional exploded view of an interface claw provided according to some embodiments of the present disclosure;

[0035] Fig.25 An optical fiber plug assembly structure is decomposed according to some embodiments of the present disclosure;

[0036] Fig.26 A diagram of an assembly structure of a fixing member and a pin provided according to some embodiments of the present disclosure. DETAILED DESCRIPTION

[0037] Some embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. However, the described embodiments are only a part of the embodiments of the present disclosure, rather than all of 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.

[0038] Unless the context requires otherwise, throughout the specification and claims, the term "comprising" is to be interpreted as having an open, inclusive meaning, that is, "including, but not limited to"; the terms "first" and "second" are not to be understood as indicating or implying relative importance or indicating an upper limit on quantity; the term "plurality" means two or more; the term "connected" is to be understood in a broad sense, for example, "connected" can be a fixed connection, a detachable connection, or an integral connection, and can be directly connected or indirectly connected through an intermediate medium; the use of the terms "suitable for" or "configured to" implies open and inclusive language, which does not exclude devices that are suitable for or configured to perform additional tasks or steps; descriptions such as "parallel", "perpendicular", "same", "consistent", and "flush" are not limited to absolute mathematical theoretical relationships, but also include an acceptable error range generated in practice, and also include differences based on the same design concept but due to manufacturing reasons.

[0039] In optical communication technology, in order to establish information transmission between information processing devices, it is necessary to load information onto light and use the propagation of light to achieve information transmission. Here, the light loaded with information is an optical signal. When optical signals are transmitted in information transmission equipment, the loss of optical power can be reduced, so high-speed, long-distance, and low-cost information transmission can be achieved. The signals that information processing equipment can recognize and process are electrical signals. Information processing equipment usually includes optical network terminals (Optical Network Unit, ONU), gateways, routers, switches, mobile phones, computers, servers, tablets, televisions, etc., and information transmission equipment usually includes optical fibers and optical waveguides.

[0040] The optical module can realize the mutual conversion between optical signals and electrical signals between information processing equipment and information transmission equipment. For example, at least one of the optical signal input end or the optical signal output end of the optical module is connected to an optical fiber, and at least one of the electrical signal input end or the electrical signal output end of the optical module is connected to an optical network terminal; the first optical signal from the optical fiber is transmitted to the optical module, and the optical module converts the first optical signal into a first electrical signal, and transmits the first electrical signal to the optical network terminal; the second electrical signal from the optical network terminal is transmitted to the optical module, and the optical module converts the second electrical signal into a second optical signal, and transmits the second optical signal to the optical fiber. Since multiple information processing devices can transmit information through electrical signals, at least one of the multiple information processing devices needs to be directly connected to the optical module, and all information processing devices do not need to be directly connected to the optical module. Here, the information processing device directly connected to the optical module is called the upper computer of the optical module. In addition, the optical signal input end or the optical signal output end of the optical module can be called an optical port, and the electrical signal input end or the electrical signal output end of the optical module can be called an electrical port.

[0041] Figure 1 FIG. 1 is a partial structural diagram of an optical communication system according to some embodiments. Figure 1 As shown, 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 .

[0042] One end of the optical fiber 101 extends toward the remote information processing device 1000, and the other end of the optical fiber 101 is connected to the optical module 200 through the optical port of the optical module 200. The optical signal can be totally reflected in the optical fiber 101, and the propagation of the optical signal in the total reflection direction can almost maintain the original optical power. The optical signal undergoes multiple total reflections in the optical fiber 101 to transmit the optical signal from the remote information processing device 1000 to the optical module 200, or to transmit the optical signal from the optical module 200 to the remote information processing device 1000, thereby realizing long-distance, low-power loss information transmission.

[0043] The optical communication system may include one or more optical fibers 101, and the optical fibers 101 are 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 working state of the optical module 200.

[0044] 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 so that the host computer 100 and the optical module 200 establish a unidirectional or bidirectional electrical signal connection.

[0045] The host computer 100 also includes an external electrical interface, which can be connected to an electrical signal network. For example, the external electrical interface includes a Universal Serial Bus (USB) interface or a network cable interface 104, and the network cable interface 104 is configured to access the 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 as to establish an electrical signal connection between the local information processing device 2000 and the host computer 100 through the network cable 103. For example, the third electrical signal sent by the local information processing device 2000 is transmitted to the host computer 100 through the network cable 103, and the host computer 100 generates a second electrical signal according to the third electrical signal. The second electrical signal from the host computer 100 is transmitted to the optical module 200, and 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, and the second optical signal is transmitted to the remote information processing device 1000 in the optical fiber 101. For example, the first optical signal from the remote information processing device 1000 is transmitted through the optical fiber 101, and the first optical signal from the optical fiber 101 is transmitted to the optical module 200, and the optical module 200 converts the first optical signal into a first electrical signal, and the optical module 200 transmits the first electrical signal to the host computer 100, and the host computer 100 generates a fourth electrical signal according to the first electrical signal, and transmits the fourth electrical signal to the local information processing device 2000. It should be noted that the optical module is a tool for realizing the mutual conversion between optical signals and electrical signals. During the conversion process between the optical signals and electrical signals, the information does not change, but the encoding and decoding methods of the information can change.

[0046] 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.

[0047] Figure 2 FIG. 1 is a partial structural diagram of a host computer according to some embodiments. In order to clearly show the connection relationship between the optical module 200 and the host computer 100, Figure 2 Only the structure of the host computer 100 related to the optical module 200 is shown. Figure 2 As shown, the host computer 100 further includes a PCB circuit board 105 disposed in 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 inside the cage 106. The electrical connector is configured to access 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.

[0048] The optical module 200 is inserted into the cage 106 of the host computer 100, and the cage 106 fixes the optical module 200. The heat generated by the optical module 200 is transferred to the cage 106 and then diffused through the heat sink 107. After the optical module 200 is inserted into the cage 106, the electrical port of the optical module 200 is connected to the electrical connector inside the cage 106, so that the optical module 200 establishes a bidirectional electrical signal connection with the host computer 100. In addition, the optical port of the optical module 200 is connected to the optical fiber 101, so that the optical module 200 establishes a bidirectional optical signal connection with the optical fiber 101.

[0049] Figure 3 is a structural diagram of an optical module according to some embodiments, Figure 4 FIG. 1 is an exploded view of an optical module according to some embodiments. Figure 3 and Figure 4 As shown, the optical module 200 includes a shell, a circuit board 300 disposed in the shell, and a lens assembly 800 .

[0050] The housing comprises an upper housing 201 and a lower housing 202 . The upper housing 201 covers the lower housing 202 to form the housing having two openings 204 and 205 . The outer contour of the housing is generally a square body.

[0051] In some embodiments, the lower shell 202 includes a bottom plate 2021 and two lower side plates 2022 located on both sides of the bottom plate 2021 and arranged perpendicular to the bottom plate 2021; the upper shell 201 includes a cover plate 2011, and the cover plate 2011 covers the two lower side plates 2022 of the lower shell 202 to form the above-mentioned shell.

[0052] In some embodiments, the lower shell 202 includes a bottom plate 2021 and two lower side plates 2022 located on both sides of the bottom plate 2021 and vertically arranged with the bottom plate 2021; the upper shell 201 includes a cover plate 2011 and two upper side plates located on both sides of the cover plate 2011 and vertically arranged with the cover plate 2011, and the two upper side plates are combined with the two lower side plates 2022 to realize that the upper shell 201 covers the lower shell 202.

[0053] The direction of the line connecting the two openings 204 and 205 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 example, the opening 204 is located at the end of the optical module 200 ( Figure 3 The opening 205 is also located at the end of the optical module 200 ( Figure 3Alternatively, the opening 204 is located at the end of the optical module 200, and the opening 205 is located at the side of the optical module 200. The opening 204 is an electrical port, and the gold finger 301 of the circuit board 300 extends from the opening 204 and is inserted into the electrical connector of the host computer 100; the opening 205 is an optical port, which is configured to access the external optical fiber 101 so that the optical fiber 101 is connected to the lens assembly 800 in the optical module 200.

[0054] The upper housing 201 and the lower housing 202 are combined to facilitate the installation of the circuit board 300, the lens assembly 800, etc. into the housing, and the upper housing 201 and the lower housing 202 can encapsulate and protect the above components. In addition, when assembling the circuit board 300, the lens assembly 800, etc., it is convenient to deploy the positioning components, heat dissipation components, and electromagnetic shielding components of these components, which is conducive to automated production.

[0055] In some embodiments, the upper shell 201 and the lower shell 202 are made of metal materials to facilitate electromagnetic shielding and heat dissipation.

[0056] 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.

[0057] For example, the unlocking component 600 is located on the outside of the two lower side plates 2022 of the lower housing 202, and includes a snap-fit ​​component that matches the cage 106 of the host computer 100. When the optical module 200 is inserted into the cage 106, the snap-fit ​​component of the unlocking component 600 fixes the optical module 200 in the cage 106; when the unlocking component 600 is pulled, the snap-fit ​​component of the unlocking component 600 moves accordingly, thereby changing the connection relationship between the snap-fit ​​component and the host computer, so as to release the fixation of the optical module 200 and the host computer, so that the optical module 200 can be pulled out of the cage 106.

[0058] The circuit board 300 includes circuit traces, electronic components and chips, etc. The electronic components and chips are connected according to the circuit design through the circuit traces to realize the functions of power supply, electrical signal transmission and grounding. The electronic components may include capacitors, resistors, transistors, metal-oxide-semiconductor field-effect transistors (Metal-Oxide-Semiconductor Field-Effect Transistor, MOSFET), etc. The chips may include microcontroller units (Microcontroller Unit, MCU), laser driver chips, transimpedance amplifiers (Transimpedance Amplifier, TIA), limiting amplifiers (Limiting amplifier), clock and data recovery chips (Clock and Data Recovery, CDR), power management chips, digital signal processing (Digital Signal Processing, DSP) chips.

[0059] 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.

[0060] The circuit board 300 also includes a gold finger 301 formed on the end surface thereof. The gold finger 301 is composed of a plurality of independent pins. The circuit board 300 is inserted into the cage 106, and the gold finger 301 is connected to the electrical connector in the cage 106. The gold finger 301 can be provided on only one side of the circuit board 300 (e.g. Figure 4 The upper surface shown in the figure) can also be set on the upper and lower surfaces of the circuit board 300 to provide more pins, so as to adapt to occasions where the number of pins is large. The gold finger 301 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.

[0061] In some embodiments, at least one of the light emitting component or the light receiving component may be directly disposed on the circuit board 300. For example, at least one of the light emitting component or the light receiving component may be disposed on a surface of the circuit board 300 or a side of the circuit board 300.

[0062] In some embodiments, a wrapping cavity is formed between the upper housing 201 and the lower housing 202. The circuit board 300 is disposed in the wrapping cavity. One end of the wrapping cavity forms an optical port side, that is, the side where the opening 205 is located; the other end forms an electrical port side, that is, the side where the opening 204 is located.

[0063] In some embodiments, an interface clamp 900 is provided on the optical port side. The interface clamp 900 can establish a connection between the inner and outer optical fibers.

[0064] In some embodiments, one end of the interface claw 900 is connected to the optical fiber 101, and the other end is connected to the optical fiber ribbon inside the optical module, thereby achieving internal and external optical signal connection.

[0065] The end of the interface clamp 900 facing the inside of the optical module is provided with an optical fiber plug 720, and the optical fiber ribbon inside the optical module is connected to the optical fiber plug 720. The optical fiber plug 720 is plugged into one end of the interface clamp 900, and the plug for fixing the external optical fiber is plugged into the other end of the interface clamp 900, so that the internal and external optical fibers are optically coupled in the interface clamp 900, and the internal and external optical signals are coupled.

[0066] In some embodiments, a fiber bracket 710 is disposed on the surface of the circuit board 300. An optical fiber ribbon 731 inside the optical module is connected between the optical fiber plug 720 and the optical fiber bracket 710.

[0067] In some embodiments, the optical fiber ribbon 731 inside the optical module includes a first optical fiber array 730 and a second optical fiber array 740. One end of the first optical fiber array 730 is connected to the optical fiber plug 720, and the other end is connected to the optical fiber bracket 710. One end of the second optical fiber array 740 is connected to the optical fiber plug 720, and the other end is connected to the optical fiber bracket 710.

[0068] In some embodiments, the optical fiber 101 is fixedly plugged into one end of the interface claw 900, and the first optical fiber array 730 and the second optical fiber array 740 are plugged into the other end of the interface claw 900 via the optical fiber plug 720, thereby realizing the optical coupling connection between the optical fiber 101 and the first optical fiber array 730 and the second optical fiber array 740. Exemplarily, the optical fiber 101 is fixed to the optical cable plug, and the optical cable plug is plugged into one end of the interface claw 900, and the optical fiber plug 720 is plugged into the other end of the interface claw 900, and then the optical cable plug and the optical fiber plug 720 are docked in the interface claw 900, realizing the optical coupling between the external optical fiber and the internal optical fiber.

[0069] In some embodiments, a lens assembly 800 is disposed on the surface of the circuit board 300. An optical chip is disposed on the surface of the circuit board 300. By way of example, the optical chip includes a laser chip and a light receiving chip.

[0070] The lens assembly 800 is disposed on the circuit board 300 and is disposed above the optical chip in a cover-type manner. The lens assembly 800 and the circuit board 300 form a cavity that encloses optical chips such as a laser chip and a light receiving chip.

[0071] The lens assembly 800 can change the propagation direction of the optical signal, thereby establishing an optical connection between the optical fiber 101 and the optical chip.

[0072] When the optical signal transmitted to the inside by the optical fiber 101 enters the lens assembly 800, the optical signal is reflected, and the propagation direction of the optical signal is changed, so that it enters the optical receiving chip 702 of the optical chip. When the optical signal emitted by the laser chip enters the lens assembly 800, the optical signal is reflected, and the propagation direction of the optical signal is changed, so that it is transmitted to the optical fiber 101.

[0073] In some embodiments, the transmission direction of light emitted by the laser chip is turned by the lens assembly 800 and enters the first optical fiber array 730 in the optical fiber holder 710. The light is then transmitted along the first optical fiber array 730 to the optical fiber 101 connected to one end of the optical fiber plug 720, thereby transmitting the light emitted by the laser chip to the outside of the optical module.

[0074] In some embodiments, light from the optical fiber 101 is transmitted to the lens assembly 800 via the second optical fiber array 740 in the optical fiber plug 720 , and the transmission direction is turned by the lens assembly 800 and enters the optical receiving chip.

[0075] In some embodiments, as the speed of the optical module increases, the frequency of the electromagnetic waves radiated outward increases, and the electromagnetic leakage point of the optical module may occur at the connection gap between the upper shell 201 and the lower shell 202 .

[0076] In some embodiments, a first cushion block 760 and a second cushion block 750 are provided between the interface claw 900 and the optical fiber bracket 710. The first cushion block 760 is limited on the lower housing 202, and the second cushion block 750 is limited on the upper housing 201. The first optical fiber array 730 and the second optical fiber array 740 pass through between the first cushion block 760 and the second cushion block 750.

[0077] In some embodiments, the upper housing 201 , the second cushion block 750 , the first cushion block 760 , and the lower housing 202 form a relatively sealed interface, thereby cutting off the electromagnetic radiation coupling path and preventing the electromagnetic radiation generated by the optical module from leaking to the outside.

[0078] In some embodiments, the first spacer 760 and the second spacer 750 are electromagnetic shielding materials with high magnetic permeability and low magnetic resistance to absorb electromagnetic magnetic fields.

[0079] In some embodiments, the first pad 760 and the second pad 750 are foam rubber or conductive rubber, and a relatively sealed interface is formed by the upper shell 201, the second pad 750, the first pad 760, and the lower shell 202 to block electromagnetic waves and prevent the electromagnetic radiation generated by the optical module from leaking to the outside.

[0080] In some embodiments, the first pad 760 and the second pad 750 may also be supporting pads for clamping the first optical fiber array 730 and the second optical fiber array 740 .

[0081] Figure 5 FIG. 1 is an exploded view of the interior of an optical module provided according to some embodiments of the present disclosure. Figure 5 As shown, in some embodiments, the lens assembly 800 is projected onto the surface of the circuit board 300 .

[0082] In some embodiments, an optical chip is provided on the surface of the circuit board 300. The optical chip includes a laser chip 302, a laser driver chip 303, a light receiving chip 304, and a TIA 305. The light emitting direction of the laser chip 302 is perpendicular to the surface of the circuit board 300, and the light receiving direction of the light receiving chip 304 is perpendicular to the surface of the circuit board 300.

[0083] Since the first optical fiber array 730 and the second optical fiber array 740 are arranged parallel to the surface of the circuit board 300, the lens assembly 800 is required to change the light transmission direction, so as to couple the light emitted by the laser chip 302 into the first optical fiber array 730, and couple the second optical fiber array 740 to the optical signal inside the optical module and transmit it to the optical receiving chip 304. Therefore, the lens assembly 800 has a refraction function.

[0084] In some embodiments, the laser driving chip 303 inputs a driving current to the laser chip 302 to drive the laser chip 302 to emit light.

[0085] In some embodiments, the light receiving chip 304 is used to convert the received light into a photocurrent signal. The TIA 305 is used to convert the photocurrent signal into a photovoltage signal and amplify the photovoltage signal.

[0086] In some embodiments, a reflective surface 801 is formed on the surface of the lens assembly 800. The optical signal to be transmitted to the optical receiving chip 304 and the optical signal generated by the laser chip 302 are both reflected by the reflective surface 801, thereby changing the transmission direction of the optical signal.

[0087] The laser chip 302 emits an optical signal upward along the surface of the circuit board 300. The optical signal is transmitted to the lens assembly 800. After being reflected by the reflecting surface 801, the transmission direction of the optical signal is adjusted from perpendicular to the surface of the circuit board 300 to parallel to the surface of the circuit board 300, and is output to the outside of the optical module along the first optical fiber array 730 and the optical fiber 101 in sequence.

[0088] The optical signal transmitted to the inside of the optical module via the optical fiber 101 is transmitted along the second optical fiber array 740 to the reflecting surface 801. After being reflected by the reflecting surface 801, the transmission direction of the optical signal is adjusted from parallel to the surface of the circuit board 300 to perpendicular to the surface of the circuit board 300, so that it is received by the optical receiving chip 304.

[0089] Figure 6 FIG. 1 is a cross-sectional diagram of an internal structure of an optical module provided according to some embodiments of the present disclosure. Figure 6 As shown, in some embodiments, the surface of the lens assembly 800 includes a reflective surface 801 .

[0090] In some embodiments, the lens assembly 800 and the circuit board 300 form a radiating cavity, and the light receiving chip 304 and the TIA 305 are disposed on the surface of the circuit board 300 and are radiated by the lens assembly 800 .

[0091] In some embodiments, the optical signal transmitted to the inside of the optical module is transmitted along the second optical fiber array 740 to the reflective surface 801. After being reflected by the reflective surface 801, the transmission direction of the optical signal is adjusted from parallel to the surface of the circuit board 300 to perpendicular to the surface of the circuit board 300, so that it is received by the optical receiving chip 304.

[0092] Figure 7 FIG. 1 is an assembly diagram of an optical fiber bracket and a lens assembly according to some embodiments of the present disclosure. Figure 7 As shown, in some embodiments, the optical fiber support 710 is fixedly connected to the lens assembly 800 .

[0093] In some embodiments, a first through hole 711 and a second through hole 712 are respectively formed in the optical fiber bracket 710 .

[0094] In some embodiments, a reflective surface 801 is formed on the surface of the lens assembly 800. The optical signal to be transmitted to the optical receiving chip 304 and the optical signal generated by the laser chip 302 are both reflected by the reflective surface 801, thereby changing the transmission direction of the optical signal.

[0095] In some embodiments, a first limiting post 802 and a second limiting post 803 are formed on the end surface of the lens assembly 800 facing the optical fiber bracket 710 .

[0096] The first limiting post 802 is inserted into the first through hole 711 , and the second limiting post 803 is inserted into the second through hole 712 , thereby achieving a fixed connection between the lens assembly 800 and the optical fiber bracket 710 .

[0097] In some embodiments, the lens assembly 800 includes a supporting surface 804 to support the optical fiber holder 710 .

[0098] In some embodiments, the end face of the optical fiber holder 710 is polished to form an inclined end face so that the light reflected from the optical fiber end face is guided to the optical fiber cladding, thereby preventing the light from being returned to the optical fiber core layer and ensuring signal quality.

[0099] Figure 8 FIG. 1 is a structural diagram of a lens assembly provided according to some embodiments of the present disclosure. Figure 8 As shown, in some embodiments, a first limiting post 802 and a second limiting post 803 are formed on the end surface of the lens assembly 800 facing the optical fiber bracket 710 to fix the optical fiber bracket 710 .

[0100] In some embodiments, a first notch 805 and a second notch 806 are respectively formed on two sides of the bottom of the lens assembly 800 .

[0101] In some embodiments, a viscous medium is bidirectionally filled along the edges on both sides of the bottom surface of the lens assembly 800 to fix the lens assembly 800 to the surface of the circuit board 300. The gap between the lens assembly 800 and the circuit board 300 has a capillary siphon effect. Under the capillary siphon effect, the viscous medium filled along the edges on both sides is sucked into the bottom of the lens assembly 800, and gradually flows from the edges on both sides toward the center of the lens assembly 800. The provision of the first notch 805 and the second notch 806 can prevent the viscous filler from continuing to flow toward the center onto the surfaces of the laser chip 302, the light receiving chip 304, etc., and causing certain contamination to the laser chip 302, the light receiving chip 304, etc. Exemplarily, the viscous medium is glue.

[0102] In some embodiments, a recess 807 is formed between the first limiting post 802 and the second limiting post 803 to ensure air circulation between the optical fiber holder 710 and the lens assembly 800, thereby preventing high temperature gas from pushing the assembled optical fiber holder 710 away from the lens assembly 800.

[0103] Fig. 9 is a cross-sectional view of an optical module provided according to some embodiments of the present disclosure, Fig.10 FIG. 1 is a cross-sectional exploded view of an optical module provided according to some embodiments of the present disclosure. Fig. 9 and Fig.10 As shown, in some embodiments, the upper shell 201 and the lower shell 202 are connected in a vertical manner to form a wrapping cavity.

[0104] In some embodiments, a first cushion block 760 and a second cushion block 750 are formed on the optical port side, and are arranged opposite to each other in the upper and lower directions. The first cushion block 760 is limited to the lower housing 202 , and the second cushion block 750 is limited to the upper housing 201 .

[0105] In some embodiments, the upper housing 201 , the second cushion block 750 , the first cushion block 760 , and the lower housing 202 form a relatively sealed interface, thereby cutting off the electromagnetic radiation coupling path and preventing the electromagnetic radiation generated by the optical module from leaking to the outside.

[0106] In some embodiments, a first groove 2023 is formed on the surface of the lower housing 202. The first cushion block 760 is embedded in the first groove 2023, so that the first cushion block 760 is limited and fixed on the lower housing 202.

[0107] In some embodiments, a second groove 2012 is formed on the surface of the upper housing 201 . The second cushion block 750 is embedded in the second groove 2012 , so that the second cushion block 750 is limited and fixed on the upper housing 201 .

[0108] Fig.11 FIG. 1 is a structural diagram of an upper housing provided according to some embodiments of the present disclosure. Fig.11 As shown, in some embodiments, a second groove 2012 is formed on the surface of the upper shell 201 to embed the second cushion block 750 so as to limit the second cushion block 750 .

[0109] Fig.12 A lower shell surface mounting structure provided according to some embodiments of the present disclosure Figure 1 , Fig.13 A lower shell surface assembly decomposition method provided according to some embodiments of the present disclosure Figure 1 .like Fig.12 and Fig.13 As shown, in some embodiments, the surface of the lower housing 202 is provided with an interface claw 900, a first cushion block 760, and a circuit board 300. The surface of the circuit board 300 is provided with an optical fiber bracket 710 and a lens assembly 800.

[0110] In some embodiments, an interface claw 900, a first cushion block 760, an optical fiber bracket 710 and a lens assembly 800 are sequentially provided from the optical port side to the electrical port side.

[0111] In some embodiments, the internal optical fiber ribbon extends from one end of the interface claw 900 to the optical fiber bracket 710, thereby establishing an optical transmission channel inside the optical module.

[0112] In some embodiments, the interface claw 900 includes a first protrusion 921a and a second protrusion 921b on both sides. The lower shell is formed with a first limiting groove 2024a and a second limiting groove 2024b on both sides. The first limiting groove 2024a and the second limiting groove 2024b are configured as grooves.

[0113] In some embodiments, the first protrusion 921a is embedded in the first limiting groove 2024a, and the second protrusion 921b is embedded in the second limiting groove 2024b, thereby fixing the interface claw 900 on the lower shell 202 to achieve an assembly connection between the interface claw 900 and the lower shell 202.

[0114] In some embodiments, during assembly, the interface claw 900 and the first cushion block 760 can be first set on the lower shell 202, and the optical fiber ribbon can be extended from the end of the interface claw 900 along the surface of the first cushion block 760 toward the inside of the optical module until the optical fiber ribbon is connected to the optical fiber bracket 710, and then the optical fiber bracket 710 and the lens assembly 800 can be assembled together.

[0115] In some embodiments, a first groove 2023 is formed on the surface of the lower housing 202 to limit the first cushion block 760. Assembly surfaces are formed on both sides of the first groove 2023, and are assembled with the upper housing 201 through the assembly surfaces. Exemplarily, the assembly surfaces on both sides can be the first assembly surface 202a and the second assembly surface 202b respectively.

[0116] In some embodiments, a first receiving surface 2025 and a second receiving surface 2026 are respectively formed on two sides of the first groove 2032 .

[0117] The first receiving surface 2025 and the second receiving surface 2026 are used to receive the optical fiber ribbon 731 on the surface of the first cushion block 760. Exemplarily, the optical fiber ribbon 731 includes a first optical fiber array 730 and a second optical fiber array 740.

[0118] In some embodiments, the first receiving surface 2025 and the second receiving surface 2026 are symmetrically arranged relative to the first groove 2032 to receive the first optical fiber array 730 and the second optical fiber array 740 from both sides of the first groove 2032 .

[0119] In some embodiments, in order to prevent the first optical fiber array 730 and the second optical fiber array 740 from being covered by the upper shell 201 and causing damage thereto, the first optical fiber array 730 and the second optical fiber array 740 are supported from both sides by a lower first supporting surface 2025 and a second supporting surface 2026.

[0120] In some embodiments, the first assembly surface 202 a and the first receiving surface 2025 are located on the same side of the first groove 2023 , and the second assembly surface 202 b and the second receiving surface 2026 are located on the same side of the first groove 2023 .

[0121] In some embodiments, the first cushion block 760 is embedded in the first groove 2023, and the surface of the first cushion block 760 facing the upper housing 201 is further away from the upper housing 201 than the first receiving surface 2025 and the second receiving surface 2026. Fig.13In the orientation shown, the surface of the first cushion block 760 is lower than the surfaces of the first supporting surface 2025 and the second supporting surface 2026 .

[0122] In some embodiments, the first receiving surface 2025 is further away from the upper housing 201 relative to the first assembly surface 202a, and the second receiving surface 2026 is further away from the upper housing 201 relative to the second assembly surface 202b. Fig.13 In the orientation shown, the surface of the first receiving surface 2025 is lower than the surface of the first assembly surface 202a, and the surface of the second receiving surface 2026 is lower than the surface of the second assembly surface 202b. In some embodiments, when the optical fiber ribbon 731 is placed on the surface of the first cushion block 760, some of the loose fibers may fall upward. If the surface of the first receiving surface 2025 is lower than the surface of the first assembly surface 202a, when the loose fibers bulge upward toward the side of the first groove 2023, the first receiving surface 2025 provides a lower bearing surface for the loose fibers to fall, thereby preventing the loose fibers from falling upward onto the first assembly surface 202a, thereby protecting the optical fiber ribbon from being covered by the upper shell 201.

[0123] The surface of the second receiving surface 2026 is lower than the surface of the second assembly surface 202b. When the loose fibers bulge upward toward the other side of the first groove 2023, the second receiving surface 2026 provides a lower bearing surface for the loose fibers, thereby avoiding being covered by the upper shell 201 to protect the optical fiber ribbon.

[0124] In some embodiments, the optical fiber ribbon 731 is raised upward to provide a thrust for assembling the optical fiber holder 710 onto the lens assembly 800, and the optical fiber holder 710 is assembled onto the lens assembly 800 under the forward thrust of the optical fiber ribbon 731. After assembly, the scattered fibers in the optical fiber ribbon 731 are scattered upward onto the first receiving surface 2025 or the second receiving surface 2026 at a lower position, or are located above the first receiving surface 2025 or the second receiving surface 2026. Since the first receiving surface 2025 and the second receiving surface 2026 can provide a lower bearing surface, the scattered fibers in the optical fiber ribbon 731 are prevented from being broken by the upper housing 201. When the upper housing 201 is assembled onto the lower housing 202, the upper housing 201 presses the scattered fiber cover in the optical fiber ribbon 731 back onto the first receiving surface 2025 or the second receiving surface 2026.

[0125] In some embodiments, the first optical fiber array 730 and the second optical fiber array 740 may be bent toward the two sides of the first groove 2023 due to the bending posture. At this time, the first receiving surface 2025 or the second receiving surface 2026 can also provide a lower bearing surface for the bent optical fiber to avoid reaching the first assembly surface 202a or the second assembly surface 202b at a higher position, so that the optical fiber is covered by the upper housing 201. Exemplarily, the shape of the first receiving surface 2025 or the second receiving surface 2026 is adapted to the bending posture of the optical fiber, thereby providing better covering force for the optical fiber.

[0126] In some embodiments, the first receiving surface 2025 is lower than the first assembly surface 202a, and the second receiving surface 2026 is lower than the second assembly surface 202b. The height difference between the first receiving surface 2025 and the first assembly surface 202a satisfies that when the optical fiber ribbon 731 is placed on the surface of the first receiving surface 2025, there is a gap between the optical fiber ribbon 731 and the upper shell 201 to prevent the upper shell 201 from touching the optical fiber ribbon 731.

[0127] Exemplarily, if the height difference between the first receiving surface 2025 and the first assembly surface 202a is greater than the diameter of the optical fiber ribbon 731, the optical fiber ribbon 731 can be completely accommodated in the step wall formed by the first receiving surface 2025 and the first assembly surface 202a, and there is a gap between the optical fiber ribbon 731 and the upper shell 201, thereby preventing the upper shell 201 from touching the optical fiber ribbon 731, thereby protecting the optical fiber ribbon 731. Correspondingly, the height difference between the second receiving surface 2026 and the second assembly surface 202b is greater than the diameter of the optical fiber ribbon 731.

[0128] In some embodiments, the second pad 750 is connected to the first conductive rubber strip 751 and the second conductive rubber strip 752 on both sides. The first conductive rubber strip 751 and the second conductive rubber strip 752 are respectively disposed between the upper housing 201 and the lower housing 202 from both sides to block electromagnetic waves from both sides to prevent the electromagnetic radiation generated by the optical module from leaking to the outside from both sides.

[0129] In some embodiments of the present disclosure, since the first cushion block 760 is located lower than the first receiving surface 2025 and the second receiving surface 2026, the first receiving surface 2025 is located lower than the first assembly surface 202a, and the second receiving surface 2026 is located lower than the second assembly surface 202b, the optical fiber ribbon on the surface of the first cushion block 760 is closer to the first receiving surface 2025 and the second receiving surface 2026, rather than the first assembly surface 202a and the second assembly surface 202b that are connected to the upper shell. When the optical fiber ribbon bulges or bends upward, the first receiving surface 2025 and the second receiving surface 2026 can provide a lower bearing surface for the optical fiber ribbon, so that the optical fiber ribbon can be placed on the first receiving surface 2025 or the second receiving surface 2026, rather than on the first assembly surface 202a or the second assembly surface 202b that are connected to the upper shell, thereby preventing the optical fiber ribbon from being covered or broken by the upper shell, so as to protect the optical fiber ribbon.

[0130] Fig.14 A side cross-section of an optical module provided according to some embodiments of the present disclosure Figure 1 , Fig.15 A side cross-section of an optical module provided according to some embodiments of the present disclosure Figure 2 , Fig.16 A side view of a lower shell provided according to some embodiments of the present disclosure Figure 1 .like Figure 14-16 As shown, in some embodiments, the fiber optic plug 720 is disposed within one end of the interface claw 900.

[0131] In some embodiments, a first groove 2023 is formed on the surface of the lower shell 202 to embed the first cushion block 760 .

[0132] In some embodiments, the first receiving surface 2025 is lower than the first assembly surface 202a, and a first step 781 is formed between the first receiving surface 2025 and the first assembly surface 202a. The second receiving surface 2026 is lower than the second assembly surface 202b, and a second step 782 is formed between the second receiving surface 2026 and the second assembly surface 202b.

[0133] The height of the first step 781 satisfies that when the optical fiber ribbon 731 is placed on the first receiving surface 2025, there is a gap between the optical fiber ribbon 731 and the upper shell 201 to prevent the upper shell 201 from touching the optical fiber ribbon 731. Similarly, the height of the second step 782 satisfies that when the optical fiber ribbon 731 is placed on the second receiving surface 2026, there is a gap between the optical fiber ribbon 731 and the upper shell 201 to prevent the upper shell 201 from touching the optical fiber ribbon 731.

[0134] In some embodiments, a second groove 2012 is formed on the surface of the upper shell 201 , and a second pad 750 is embedded in the second groove 2012 . The second pad 750 is arranged opposite to the first pad 760 , so that the first optical fiber array 730 and the second optical fiber array 740 are arranged between the second pad 750 and the first pad 760 .

[0135] In some embodiments, the second pad 750 is provided with a first conductive rubber strip 751 and a second conductive rubber strip 752 on both sides, the first conductive rubber strip 751 is provided on the first assembly surface 202a, and the second conductive rubber strip 752 is provided on the second assembly surface 202b.

[0136] In some embodiments, the first conductive rubber strip 751 has a first slanted wall 7511 , and the second conductive rubber strip 752 has a second slanted wall 7521 .

[0137] In some embodiments, the first inclined wall 7511 is inclined along the first groove 2023 to one edge of the lower housing 202, and the second inclined wall 7521 is inclined along the first groove 2023 to another edge of the lower housing 202. The first inclined wall 7511 and the second inclined wall 7521 are symmetrically arranged relative to the first groove 2023.

[0138] In some embodiments, the first step 781 and the first inclined wall 7511 have the same inclination trend, and the second step 782 and the second inclined wall 7521 have the same inclination trend.

[0139] In some embodiments, the first receiving surface 2025 includes a first oblique edge 2051 , and the second receiving surface 2026 includes a second oblique edge 2061 . The first oblique edge 2051 and the second oblique edge 2061 are symmetrically disposed on two sides of the first groove 2023 .

[0140] In some embodiments, the first inclined edge 2051 , the first step 781 and the first inclined wall 7511 have the same inclination trend.

[0141] In some embodiments, the second inclined edge 2061 , the second step 782 and the second inclined wall 7521 have the same inclination trend.

[0142] In some embodiments, the first oblique edge 2051 and the second oblique edge 2061 are symmetrically disposed on two sides of the first groove 2023 in an "eight" shape.

[0143] In some embodiments, the area opposite to the first oblique edge 2051 is closer to the second optical fiber array 740, so as to receive the first optical fiber array 730 and the second optical fiber array 740 from one side. The area opposite to the second oblique edge 2061 is closer to the first optical fiber array 730, so as to receive the first optical fiber array 730 and the second optical fiber array 740 from the other side.

[0144] In some embodiments, the first receiving surface 2025 and the second receiving surface 2026 can be set to be triangular in shape. The angle area subtended by the first hypotenuse 2051 and the second hypotenuse 2061 is relatively large, and when arranged close to the optical fiber ribbon, a larger receiving area can be provided for the optical fiber ribbon to ensure that the optical fiber ribbon can be scattered on or above the first receiving surface 2025 or the second receiving surface 2026.

[0145] In some embodiments, the shapes of the first receiving surface 2025 and the second receiving surface 2026 can be set to other shapes. For example, the shapes can be adapted to the bending posture presented by the bulk fibers.

[0146] In some embodiments, the first receiving surface 2025 is in a reduced state relative to the first assembly surface 202a, and the second receiving surface 2026 is in a reduced state relative to the second assembly surface 202b.

[0147] Fig.17 A lower shell surface mounting structure provided according to some embodiments of the present disclosure Figure 2 , Fig.18 A lower shell surface assembly decomposition method provided according to some embodiments of the present disclosure Figure 2 .like Fig.17 and Fig.18 As shown, in some embodiments, a first groove 2023 is formed on the surface of the lower shell 202 , and a first cushion block 760 is embedded in the first groove 2023 .

[0148] In some embodiments, a first assembly surface 202 a and a second assembly surface 202 b are respectively formed on two sides of the first groove 2023 .

[0149] In some embodiments, the side wall of the first groove 2023 facing the inside of the optical module includes a first inclined surface 2027 , a second inclined surface 2028 , and a connecting surface 2029 disposed between the first inclined surface 2027 and the second inclined surface 2028 .

[0150] The first inclined surface 2027 and the second inclined surface 2028 are symmetrically arranged relative to the connecting surface 2029 .

[0151] The first inclined surface 2027 is connected to the first assembly surface 202 a , and the first inclined surface 2027 is inclined along the first assembly surface 202 a .

[0152] The second inclined surface 2028 is connected to the second assembly surface 202 b , and the second inclined surface 2028 is inclined along the second assembly surface 202 b .

[0153] In some embodiments, the first optical fiber array 730 and the second optical fiber array 740 are disposed on the surface of the first cushion block 760 , and the first inclined surface 2027 and the second inclined surface 2028 receive the second optical fiber array 740 and the first optical fiber array 730 from both sides of the first groove 2023 .

[0154] In some embodiments, the connection surface 2029 is further away from the upper housing 201 than the first inclined surface 2027 and the second inclined surface 2028. The connection surface 2029 is closer to the depth of the first groove 2023. Fig.17 In the direction shown, the first inclined surface 2027 and the second inclined surface 2028 are inclined downward, and the connecting surface 2029 is used to connect the lowest point of the first inclined surface 2027 and the lowest point of the second inclined surface 2028. The connecting surface 2029 is located lower than the first inclined surface 2027 and the second inclined surface 2028.

[0155] In some embodiments, the first inclined surface 2027 is inclined along one edge of the lower shell 202 toward the connecting surface 2029 , and the second inclined surface 2028 is inclined along the other edge of the lower shell 202 toward the connecting surface 2029 .

[0156] Exemplarily, the first inclined surface 2027 is inclined downward along the first assembly surface 202a, and the second inclined surface 2028 is inclined downward along the second assembly surface 202b.

[0157] In some embodiments, the first cushion block 760 extends beyond the connection position between the first inclined surface 2027 and the connection surface 2029 , and the first cushion block 760 also extends beyond the connection position between the second inclined surface 2028 and the connection surface 2029 .

[0158] In some embodiments, the distance between the surface of the first cushion block 760 facing the upper shell 201 and the connection surface 2029 is shorter, and the first optical fiber array 730 and the second optical fiber array 740 overlap downward along the surface of the first cushion block 760 to the connection surface 2029 .

[0159] When the loose fibers are scattered or bent upward, the first inclined surface 2027 and the second inclined surface 2028 can provide lower inclined bearing surfaces for the loose fibers, and the loose fibers are scattered toward the first inclined surface 2027 and the second inclined surface 2028, thereby avoiding scattering onto the surface of the first assembly surface 202a or the second assembly surface 202b, thereby avoiding the optical fiber ribbon being covered by the upper shell 201.

[0160] The first inclined surface 2027 and the second inclined surface 2028 are inclined, and the optical fiber ribbon is placed on the surface of the first inclined surface 2027 or the second inclined surface 2028 in an inclined posture. The first inclined surface 2027 and the second inclined surface 2028 provide the optical fiber ribbon with a force downward and toward the center of the first groove 2023, so that the optical fiber ribbon is scattered more stably on the surface of the first inclined surface 2027 and the second inclined surface 2028, preventing the upper shell 201 from touching the optical fiber ribbon, thereby protecting the optical fiber ribbon.

[0161] Fig.19 A side view of a lower shell provided according to some embodiments of the present disclosure Figure 2 , Fig. 20 A side view of a lower shell provided according to some embodiments of the present disclosure Figure 3 .like Fig.19 and Fig. 20 As shown, in some embodiments, the first cushion block 760 is embedded in the first groove 2023 .

[0162] The first inclined surface 2027 and the second inclined surface 2028 are inclinedly arranged. When the loose fibers are scattered upward or bent, the first inclined surface 2027 and the second inclined surface 2028 can provide a lower inclined bearing surface for the loose fibers. The loose fibers are scattered toward the first inclined surface 2027 and the second inclined surface 2028, thereby avoiding scattering onto the surface of the first assembly surface 202a or the second assembly surface 202b, thereby avoiding the optical fiber ribbon from being covered by the upper shell 201.

[0163] In some embodiments, when the first optical fiber array 730 is placed on the second inclined surface 2028 , there is a gap between the first optical fiber array 730 and the upper shell 201 to prevent the upper shell 201 from pressing onto the surface of the first optical fiber array 730 .

[0164] In some embodiments, when the second optical fiber array 740 is placed on the first inclined surface 2027 , there is a gap between the second optical fiber array 740 and the upper shell 201 to prevent the upper shell 201 from pressing onto the surface of the second optical fiber array 740 .

[0165] In some embodiments, the vertical height of each of the first slope 2027 and the second slope 2028 may be greater than the diameter of the optical fiber ribbon to ensure that there is a gap between the second optical fiber array 740 and the upper shell 201 and between the first optical fiber array 730 and the upper shell 201 .

[0166] In some embodiments, the electrical port side of the optical module is used to insert into a host computer, and there is a gap between the upper shell 201 on the electrical port side and the surface of the circuit board 300 to avoid wiring on the surface of the circuit board 300; there is also a gap between the lower shell 202 and the surface of the circuit board 300, so that absorbing material can be set in the gap to avoid leakage of electromagnetic radiation.

[0167] Due to the existence of the above-mentioned gap, when the electrical port side of the optical module is inserted into the host computer, dust particles on the host computer enter into the optical module along the gap under the effect of wind force output by the air duct of the cage 106 .

[0168] The first optical fiber array 730 and the second optical fiber array 740 are located between the first cushion block 760 and the second cushion block 750. Since the optical fiber is cylindrical, there are gaps between the optical fibers, between the optical fibers and the first cushion block 760, and between the optical fibers and the second cushion block 750. Dust particles that enter the optical module enter the end face of the interface claw 900 along the gaps between the optical fibers, between the optical fibers and the first cushion block 760, and between the optical fibers and the second cushion block 750.

[0169] Fig.21is a structural diagram of an interface claw provided according to some embodiments of the present disclosure, Fig. 22 FIG. 1 is an exploded view of an interface claw provided according to some embodiments of the present disclosure. Figure 21-22 As shown, in some embodiments, the interface claw 900 includes a cover shell 910 and a body 920 that are connected to each other.

[0170] In some embodiments, a through opening 960 is formed at one end of the interface clamp 900. The first optical fiber array 730 and the second optical fiber array 740 are led out toward the inside of the optical module through the through opening 960.

[0171] In some embodiments, a receiving cavity 930 is formed between the cover shell 910 and the first connecting portion 940 to receive the optical fiber plug 720 .

[0172] In some embodiments, a notch 914 is formed at the end of the cover shell 910 to provide an overlapping space for placing the cover shell 910 on the surface of the body 920 .

[0173] In some embodiments, the cover 910 can be tilted and pushed to the surface of the body 920, or the cover 910 can be pushed away from the surface of the body 920 in the opposite direction. For example, a rib 915 is formed on the surface of the cover 910. The rib 915 is protruding to increase the friction of the force acting on the cover 910, so that the cover 910 and the body 920 can be assembled or disassembled more smoothly.

[0174] In some embodiments, a first protrusion 921 a and a second protrusion 921 b are respectively formed on two sides of the body 920 to achieve assembly connection with the lower shell 202 .

[0175] In some embodiments, a first recessed portion 928 a and a second recessed portion 928 b are respectively formed on both sides of the bottom of one end of the body 920 facing the optical module to achieve assembly connection with the cover shell 910 .

[0176] In some embodiments, planes 924 are formed on both sides of the body 920 to support the cover shell 910 .

[0177] In some embodiments, the optical fiber plug 720 is blocked from the top by the first sealing plate 913, and the optical fiber plug 720 is blocked from the bottom by the second sealing plate 923. Based on the arrangement of the first sealing plate 913 and the second sealing plate 923, the interface claw 900 adopts a split and detachable design, which is more conducive to the assembly and removal of the optical fiber plug 720, while ensuring that the end face is relatively closed.

[0178] In some embodiments, the optical fiber plug 720 is assembled between the side walls of the first connecting portion 940. The first sealing plate 913 and the second sealing plate 923 are respectively located above and below the optical fiber plug 720. The upper and lower blocking of the first sealing plate 913 and the second sealing plate 923 makes the end face of the interface claw 900 facing the electrical port side become a relatively closed end face, which blocks dust particles diffused from the electrical port side to a certain extent, and reduces dust particles entering the interior of the interface claw 900.

[0179] This end face is a relatively closed end face, and the optical fiber plug 720 is assembled in the first connecting part 940. Since there is an assembly gap between the outer edges of the optical fiber plug 720 and the inner walls of the first connecting part 940, a small amount of dust particles will still enter the interface claw 900 along the assembly gaps on both sides, and then diffuse to the optical port side, causing pollution to the optical port end face.

[0180] In some embodiments, a first step portion 925 and a second step portion 926 are respectively formed on the side walls of both sides of the first connection portion 940 .

[0181] The first step portion 925 and the second step portion 926 respectively include a plurality of step surfaces, thereby creating a multi-layer barrier for dust particles entering into the interface claw 900 .

[0182] The first step portion 925 and the second step portion 926 on both sides block the movement of dust, increase the resistance to the movement of dust, and make the dust particles adsorbed on the step surface, thereby further reducing the dust particles dispersed to the end face of the optical port.

[0183] In some embodiments, buckles 927 are respectively formed on the side walls on both sides of the second connecting portion 950 to achieve assembly with an optical fiber plug that fixes an external optical fiber.

[0184] Fig.23 is a cross-sectional structural diagram of an interface claw provided according to some embodiments of the present disclosure, Fig.24 FIG. 1 is a cross-sectional exploded view of an interface claw provided according to some embodiments of the present disclosure. Fig.23 and Fig.24 As shown, in some embodiments, the cover shell 910 is covered on the surface of the body 920 .

[0185] In some embodiments, a notch 914 is formed at the end of the cover 910, and a support surface 922 is formed on the surface of the first connection portion 910. The notch 914 and the support surface 922 provide a force acting surface for the cover 910 to be set on the surface of the body 920, so that the cover 910 is covered on the surface of the body 920.

[0186] In some embodiments, a receiving cavity 930 is formed between the cover shell 910 and the first connecting portion 940 . The optical fiber plug 720 is disposed in the receiving cavity 930 .

[0187] In some embodiments, a fixing member 770 is provided on one side of the optical fiber plug 720. The fixing member 770 is connected to the end surface of the optical fiber plug 720. The fixing member 770 and the optical fiber plug 720 are disposed in the accommodating cavity 930 together.

[0188] The fixing member 770 can block the end surface of the interface claw 900, thereby preventing dust particles from entering the interface claw 900 and reducing the pollution of the optical port end surface by dust particles.

[0189] In some embodiments, an embedding groove 929 is formed on the surface of the lower housing 202. The optical fiber plug 720 and the fixing member 770 are disposed in the embedding groove 929, so as to limit the position of the optical fiber plug 720 and the fixing member 770.

[0190] Fig.25 FIG. 1 is an exploded view of an optical fiber plug assembly structure provided according to some embodiments of the present disclosure. Fig.25 As shown, in some embodiments, a notch 773 is formed in the middle of the fixing member 770 to nest the fixing member 770 on the optical fiber plug 720 and fix the fixing member 770 on the optical fiber plug 720.

[0191] In some embodiments, a first pin 791 and a second pin 792 are respectively inserted into both sides of the fixing member 770. The first pin 791 and the second pin 792 penetrate the optical fiber plug 720 until they extend out of the optical fiber plug 720 and are exposed.

[0192] The fixing member 770 is used to limit and fix the first plug pin 791 and the second plug pin 792 .

[0193] An optical fiber plug 720 is embedded at one end of the interface claw 900, and the optical fiber plug 720 is optically connected to the internal optical fiber ribbon; an optical cable plug for fixing the optical fiber 101 is embedded at the other end. The first pin 791 and the second pin 792 penetrate the optical fiber plug 720 and are exposed from the optical fiber plug 720. The exposed structure is used to connect the optical cable plug for fixing the optical fiber 101, thereby achieving coupling connection between the optical cable plug for fixing the optical fiber 101 and the optical fiber plug 720 for fixing the internal optical fiber.

[0194] In some embodiments, a first plug hole 721 and a second plug hole 722 are respectively formed on two sides of the optical fiber plug 720 .

[0195] The first plug pin 791 can be inserted into or pulled out of the first plug hole 721 , and the second plug pin 792 can be inserted into or pulled out of the second plug hole 722 .

[0196] In some embodiments, a first limiting hole 771 and a second limiting hole 772 are respectively formed on both sides of the notch 773 to limit the first plugging hole 721 and the second plugging hole 722 respectively.

[0197] In some embodiments, buckles 927 are formed on both sides of the second connecting portion 950. The buckles 927 on both sides are arranged opposite to each other. The buckles 927 on both sides are used to connect with the optical cable plug that fixes the optical fiber 101.

[0198] Fig.26 A diagram of a fixing member and a pin assembly structure provided according to some embodiments of the present disclosure, such as Fig.26 As shown, in some embodiments, the fixing member 770 is used to limit and fix the first pin 791 and the second pin 792 .

[0199] In some embodiments, a first slot 7911 is formed at the end of the first pin 791, and a second slot 7921 is formed at the end of the second pin 792. The diameter of the first slot 7911 is smaller than the diameter of the first pin 791 body, and the diameter of the second slot 7921 is smaller than the diameter of the second pin 792 body.

[0200] In some embodiments, the first limiting hole 771 is connected to a first connecting hole 774, the first connecting hole 774 is connected to the second limiting hole 772, and the diameter of the first connecting hole 774 is greater than the diameter of the first limiting hole 771. The second limiting hole 772 is connected to a second connecting hole 775, the second connecting hole 775 is connected to the second limiting hole 772, and the diameter of the second connecting hole 775 is greater than the diameter of the second limiting hole 772.

[0201] In some embodiments, the first limiting hole 771 is engaged with the first slot 7911 , and the second limiting hole 772 is engaged with the second slot 7921 .

[0202] The diameter of the main part of the first pin 791 is larger than the diameter of the first limiting hole 771, and the diameter of the main part of the first pin 791 is smaller than the diameter of the first connecting hole 774. Then, the first pin 791 is inserted into the first connecting hole 774 and moves from the first connecting hole 774 to the first limiting hole 771 along the first slot 7911, thereby fixing the first pin 791 in the first limiting hole 771.

[0203] The first insertion slot 7911 can move left and right between the first connecting hole 774 and the first limiting hole 771 to limit the first insertion pin 791 on the fixing member 770, or can be moved in the opposite direction to remove the first insertion pin 791 from the fixing member 770.

[0204] The second pin 792 is similarly positioned, fixed or removed.

[0205] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any changes or substitutions that can be thought of by any person skilled in the art within the technical scope disclosed in the present disclosure should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. An optical module, characterized in that: include: Circuit boards; An upper housing, buckled on a surface of the circuit board; A lower shell is buckled on the other surface of the circuit board, and a first assembly surface and a second assembly surface are respectively formed on both sides of the lower shell to be matched with the upper shell; a first groove is formed between the first assembly surface and the second assembly surface, and a first receiving surface and a second receiving surface are respectively formed on both sides of the first groove, the first receiving surface is away from the upper shell relative to the first assembly surface, and the second receiving surface is away from the upper shell relative to the second assembly surface; the height difference between the first receiving surface and the first assembly surface, and the height difference between the second receiving surface and the second assembly surface are respectively greater than the diameter of the optical fiber ribbon; The first cushion block has the optical fiber ribbon disposed on its surface. The first cushion block is embedded in the first groove. The surface of the first cushion block facing the upper shell is away from the upper shell relative to the first receiving surface and the second receiving surface.

2. The optical module according to claim 1, characterized in that: A second groove is formed on the surface of the upper shell, a second cushion block is embedded in the second groove, and the second cushion block is arranged opposite to the first cushion block so that the optical fiber ribbon is arranged between the second cushion block and the first cushion block; A first conductive rubber strip and a second conductive rubber strip are respectively provided on both sides of the second cushion block, and the first conductive rubber strip and the second conductive rubber strip are located on the assembly surface; The first conductive rubber strip has a first oblique wall, and the second conductive rubber strip has a second oblique wall, the first oblique wall is obliquely arranged along the first groove to one edge of the lower shell, and the second oblique wall is obliquely arranged along the first groove to the other edge of the lower shell, and the first oblique wall and the second oblique wall are symmetrically arranged relative to the first groove; A first step is formed between the first receiving surface and the first assembly surface, a second step is formed between the second receiving surface and the second assembly surface, the first step and the first inclined wall have the same inclination trend, and the second step and the second inclined wall have the same inclination trend.

3. The optical module according to claim 1, characterized in that: The first receiving surface includes a first oblique edge, and the second receiving surface includes a second oblique edge; The area opposite to the first oblique edge is closer to the optical fiber ribbon so as to receive the optical fiber ribbon from one side; The area opposite to the second oblique edge is closer to the optical fiber ribbon so as to receive the optical fiber ribbon from the other side.

4. The optical module according to claim 1, characterized in that: The upper shell and the lower shell cooperate to form a wrapping cavity, one side of the wrapping cavity is provided with an interface claw, and an end of the interface claw facing the inside of the optical module is provided with an optical fiber plug; The surface of the circuit board is provided with an optical fiber bracket and a lens assembly connected to the optical fiber bracket; One end of the optical fiber ribbon is connected to the optical fiber plug, and the other end is connected to the optical fiber bracket; The first receiving surface and the second receiving surface are used to receive the optical fiber ribbon at both sides of the first groove, so that a gap exists between the optical fiber ribbon and the upper shell.

5. The optical module according to claim 1, characterized in that: The side wall of the first groove facing the inside of the optical module comprises a first inclined surface, a second inclined surface, and a connecting surface provided between the first inclined surface and the second inclined surface, the connecting surface is farther away from the upper housing than the first inclined surface and the second inclined surface, the first inclined surface is inclined along one edge of the lower housing toward the connecting surface, and the second inclined surface is inclined along another edge of the lower housing toward the connecting surface; The surface of the first cushion block exceeds a position where the first inclined surface or the second inclined surface is connected to the connecting surface.

6. An optical module, characterized in that: include: Circuit boards; An upper shell is buckled on a surface of the circuit board; A lower housing, buckled on the other surface of the circuit board, a first groove is formed on the surface of the lower housing, a side wall of the first groove facing the inside of the optical module comprises a first inclined surface, a second inclined surface, and a connecting surface provided between the first inclined surface and the second inclined surface, the connecting surface is farther away from the upper housing than the first inclined surface and the second inclined surface, the first inclined surface is inclined along an edge of the lower housing toward the connecting surface, and the second inclined surface is inclined along another edge of the lower housing toward the connecting surface; The first cushion block has an optical fiber ribbon on its surface. The first cushion block is embedded in the first groove. The surface of the first cushion block exceeds the position where the first inclined surface or the second inclined surface is connected to the connecting surface.

7. The optical module according to claim 6, characterized in that: A first assembly surface and a second assembly surface are respectively formed on both sides of the first groove to be matched and connected with the upper shell; The first inclined surface is inclined along the first assembly surface toward the connecting surface; The second inclined surface is inclined along the second assembly surface toward the connecting surface.

8. The optical module according to claim 6, characterized in that: The upper shell and the lower shell cooperate to form a wrapping cavity, one side of the wrapping cavity is provided with an interface claw, and an end of the interface claw facing the inside of the optical module is provided with an optical fiber plug; The surface of the circuit board is provided with an optical fiber bracket and a lens assembly connected to the optical fiber bracket; One end of the optical fiber ribbon is connected to the optical fiber plug, and the other end is connected to the optical fiber bracket; The first inclined surface and the second inclined surface are used to receive the optical fiber ribbon at both sides of the first groove, so that a gap exists between the optical fiber ribbon and the upper shell.

9. The optical module according to claim 6, characterized in that: The vertical heights of the first inclined surface and the second inclined surface are respectively greater than the diameter of the optical fiber ribbon.

10. The optical module according to claim 6, characterized in that: A first assembly surface and a second assembly surface are respectively formed on both sides of the lower shell to be matched and connected with the upper shell; a first groove is formed between the first assembly surface and the second assembly surface, and a first receiving surface and a second receiving surface are respectively formed on both sides of the first groove, the first receiving surface is away from the upper shell relative to the first assembly surface, and the second receiving surface is away from the upper shell relative to the second assembly surface; the height difference between the first receiving surface and the first assembly surface, and the height difference between the second receiving surface and the second assembly surface are respectively greater than the diameter of the optical fiber ribbon; The surface of the first cushion block facing the upper shell is away from the upper shell relative to the first supporting surface and the second supporting surface.

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