Optical module

Abstract

The utility model discloses an optical module, which comprises a shell and a circuit board, wherein the shell is formed by covering an upper shell and a lower shell and is provided with an optical port; the circuit board is positioned in the shell; the shell comprises a bottom plate, a first lower side plate and a second lower side plate, wherein the first lower side plate and the second lower side plate are located on the two sides of the bottom plate. The upper shell comprises a cover plate and a shell cover. A partition plate is arranged on the bottom plate and divides the optical port into a first optical channel and a second optical channel. The optical port adapter is arranged in the first optical channel, and the multi-port optical device is arranged in the second optical channel. The optical port adapter is connected with the multi-port optical device through a first internal optical fiber; the light emitting component is connected with the multi-port optical device through a second internal optical fiber; and the light receiving component is connected with the multi-port optical device through the third internal optical fiber. The blocking arm is arranged between the partition plate and the second lower side plate, and the multi-port optical device abuts against the right side of the blocking arm. The shell cover is embedded into the second optical channel, and the multi-port optical device is located between the shell cover and the bottom plate. The blocking arm blocks the second optical channel, so that the electromagnetic shielding effect of the optical module is improved.

Description

Technical Field

[0001] The present application relates to the field of 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 are one of the key components in optical communication equipment, and with the development of optical communication technology, the transmission rate of optical modules continues to increase.

[0003] In high-speed information transceiver systems, high-density optical modules need to be used to replace traditional optical modules. Multi-channel optical transceiver technology can concentrate more optical transmitting components and optical receiving components in a smaller space. Utility Model Content

[0004] The present application provides an optical module to improve the electromagnetic shielding effect of a high-density optical module.

[0005] In order to solve the above technical problems, the embodiments of the present application disclose the following technical solutions:

[0006] In a first aspect, an embodiment of the present application discloses an optical module, including:

[0007] The upper shell includes: a cover plate and a shell cover;

[0008] The shell cover is located below the cover plate, and the left end of the shell cover protrudes from the left end of the cover plate;

[0009] A lower housing, which covers the upper housing and is combined with the upper housing to form a housing with an optical port;

[0010] The lower shell comprises: a bottom plate, a first lower side plate and a second lower side plate located on both sides of the bottom plate;

[0011] The bottom plate is provided with a partition plate, which is located between the first lower side plate and the second lower side plate, and the partition plate divides the optical port into a first optical channel and a second optical channel;

[0012] A circuit board is arranged between the upper shell and the lower shell;

[0013] An optical port adapter, located at one side of the circuit board and arranged in the first optical channel;

[0014] A multi-port optical device is arranged in the second optical channel, and the optical port adapter is connected to the multi-port optical device through a first internal optical fiber;

[0015] a light emitting component connected to the multi-port optical device via a second internal optical fiber;

[0016] a light receiving component connected to the multi-port optical device via a third internal optical fiber;

[0017] Wherein, the bottom plate comprises: a blocking arm, which is arranged between the partition plate and the second lower side plate, and the multi-port optical device abuts against the right side of the blocking arm;

[0018] The shell cover is embedded in the second optical channel, and the shell cover is against the right side of the blocking arm, and the multi-port optical device is located between the shell cover and the bottom plate. In a second aspect, an embodiment of the present application discloses an optical module, including:

[0019] The upper shell includes: a cover plate and a shell cover;

[0020] The shell cover is located below the cover plate, and the left end of the shell cover protrudes from the left end of the cover plate;

[0021] A lower housing, which covers the upper housing and is combined with the upper housing to form a housing with an optical port;

[0022] The lower shell comprises: a bottom plate, a first lower side plate and a second lower side plate located on both sides of the bottom plate;

[0023] The bottom plate is provided with a partition plate, which is located between the first lower side plate and the second lower side plate, and the partition plate divides the optical port into a first optical channel and a second optical channel;

[0024] The first lower side plate is provided with a fixing rod;

[0025] A circuit board is arranged between the upper shell and the lower shell;

[0026] An optical port adapter, located at one side of the circuit board and arranged in the first optical channel;

[0027] A multi-port optical device is arranged in the second optical channel, and the optical port adapter is connected to the multi-port optical device through a first internal optical fiber;

[0028] a light emitting component connected to the multi-port optical device via a second internal optical fiber;

[0029] a light receiving component connected to the multi-port optical device via a third internal optical fiber;

[0030] The optical fiber rack is located above the circuit board and comprises: a first limiting portion, in which the fixing rod is embedded;

[0031] Wherein, the bottom plate comprises: a blocking arm, which is arranged between the partition plate and the second lower side plate, and the multi-port optical device abuts against the right side of the blocking arm.

[0032] Compared with the prior art, the present invention has the following advantages:

[0033] The present application discloses an optical module, including a shell with an optical port formed by an upper shell and a lower shell covering each other, and a circuit board located inside the shell. The shell includes a bottom plate, a first lower side plate and a second lower side plate located on both sides of the bottom plate, and the upper shell includes a cover plate and a shell cover. A partition is provided on the bottom plate, and the partition divides the optical port into a first optical channel and a second optical channel. An optical port adapter is arranged in the first optical channel, and a multi-port optical device is arranged in the second optical channel. The optical port adapter is connected to the multi-port optical device through a first internal optical fiber; the optical emitting component is connected to the multi-port optical device through a second internal optical fiber; and the optical receiving component is connected to the multi-port optical device through a third internal optical fiber. A barrier arm is arranged between the barrier plate and the second lower side plate, and the multi-port optical device abuts against the right side of the barrier arm; the shell cover is embedded in the second optical channel, and the shell cover abuts against the right side of the barrier arm, and the multi-port optical device is located between the shell cover and the bottom plate. The shell cover, the blocking arm, the bottom plate, the second lower side plate and the partition are respectively located at different end faces of the multi-port optical device to limit the position of the multi-port optical device. The blocking arm blocks the second optical channel to improve the electromagnetic shielding effect of the optical module. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the present disclosure, the following briefly introduces the drawings required to be 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.

[0035] Figure 1 is a partial architecture diagram of an optical communication system according to some embodiments;

[0036] Figure 2 is a partial structural diagram of a host computer according to some embodiments;

[0037] Figure 3 is a structural diagram of an optical module according to some embodiments;

[0038] Figure 4 is an exploded view of an optical module according to some embodiments;

[0039] Figure 5 A schematic diagram of a local structure of an optical module provided according to some embodiments;

[0040] Figure 6 for Figure 5 A partial enlarged view of

[0041] Figure 7 A schematic diagram of the structure of a multi-port optical device provided according to some embodiments;

[0042] Figure 8 A schematic diagram of partial disassembly of an optical module according to some embodiments;

[0043] Fig. 9 A schematic diagram of a first angle structure of an optical fiber rack provided according to some embodiments;

[0044] Fig.10 A schematic diagram of a second angle structure of an optical fiber rack provided according to some embodiments;

[0045] Fig.11 A schematic diagram of the structure of an optical fiber rack, a multi-port optical device, an optical port adapter and a first internal optical fiber provided according to some embodiments;

[0046] Fig.12 A schematic diagram of an optical fiber rack, a multi-port optical device, a second internal optical fiber, and a third internal optical fiber structure provided according to some embodiments;

[0047] Fig.13 A schematic diagram of a first angle structure of a lower housing provided according to some embodiments;

[0048] Fig.14 A schematic diagram of a second angle structure of a lower housing provided according to some embodiments;

[0049] Fig.15 A schematic diagram of a matching structure of a lower housing, a circuit board, a multi-port optical device and an optical port adapter provided according to some embodiments;

[0050] Fig.16 A schematic diagram of a first angle structure of an upper housing provided according to some embodiments;

[0051] Fig.17 A schematic diagram of a second angle structure of an upper housing provided according to some embodiments;

[0052] Fig.18 A cross-sectional schematic diagram of an optical module provided according to some embodiments. DETAILED DESCRIPTION

[0053] Optical communication technology establishes information transmission between information processing devices. Optical communication technology loads information onto light and uses the propagation of light to achieve information transmission. Light loaded with information is an optical signal. When optical signals propagate in information transmission equipment, they can reduce the loss of optical power and achieve high-speed, long-distance, and low-cost information transmission. Information that can be processed by information processing equipment exists in the form of electrical signals. Optical network terminals / gateways, routers, switches, mobile phones, computers, servers, tablets, and televisions are common information processing devices, and optical fibers and optical waveguides are common information transmission equipment.

[0054] The mutual conversion of optical signals and electrical signals between information processing equipment and information transmission equipment is realized through optical modules. For example, an optical fiber is connected to the optical signal input end and / or the optical signal output end of the optical module, and an optical network terminal is connected to the electrical signal input end and / or the electrical signal output end of the optical module; the first optical signal from the optical fiber is transmitted into the optical module, the optical module converts the first optical signal into a first electrical signal, and the optical module transmits the first electrical signal into the optical network terminal; the second electrical signal from the optical network terminal is transmitted into the optical module, the optical module converts the second electrical signal into a second optical signal, and the optical module transmits the second optical signal into the optical fiber. Since information processing devices can be connected to each other through an electrical signal network, at least one type of information processing device needs to be directly connected to the optical module, and it is not necessary for all types of information processing devices to be directly connected to the optical module. The information processing device directly connected to the optical module is called the host computer of the optical module.

[0055] Figure 1 FIG. 1 is a partial architecture diagram of an optical communication system according to some embodiments. Figure 1 As shown, the optical communication system is partially presented as 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 .

[0056] One end of the optical fiber 101 extends toward the remote information processing device 1000, and the other end is connected to the optical interface 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 direction of total reflection can almost maintain the original optical power. The optical signal is totally reflected multiple times in the optical fiber 101, and the optical signal from the direction of the remote information processing device 1000 is transmitted into the optical module 200, or the light from the optical module 200 is propagated toward the remote information processing device 1000, so as to realize long-distance and low-power-loss information transmission.

[0057] The number of optical fibers 101 may be one or more (two or more); the optical fiber 101 and the optical module 200 may be connected in a pluggable movable manner or in a fixed manner.

[0058] The host computer 100 has an optical module interface 102, which is configured to access the optical module 200, so that the host computer 100 establishes a unidirectional / bidirectional electrical signal connection with the optical module 200; the host computer 100 is configured to provide data signals to the optical module 200, or receive data signals from the optical module 200, or monitor and control the working status of the optical module 200.

[0059] The host computer 100 has an external electrical interface, such as a Universal Serial Bus (USB) interface and a network cable interface 104, which can be connected to an electrical signal network. For example, the network cable interface 104 is configured to connect to the network cable 103, so that the host computer 100 and the network cable 103 establish a unidirectional / bidirectional electrical signal connection.

[0060] Optical Network Unit (ONU), Optical Line Terminal (OLT), Optical Network Equipment (ONT) and Data Center Server are common host computers.

[0061] One end of the network cable 103 is connected to the local information processing device 2000 , and the other end is connected to the host computer 100 . The network cable 103 establishes an electrical signal connection between the local information processing device 2000 and the host computer 100 .

[0062] For example, the third electrical signal emitted by the local information processing device 2000 is transmitted to the host computer 100 through 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. The optical module 200 transmits the second optical signal into the optical fiber 101. The second optical signal is transmitted to the remote information processing device 1000 in the optical fiber 101.

[0063] For example, a first optical signal from the direction of a remote information processing device 1000 propagates through the optical fiber 101, the first optical signal from the optical fiber 101 is transmitted into 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 into the host computer 100, the host computer 100 generates a fourth electrical signal based on the first electrical signal, and the host computer 100 transmits the fourth electrical signal to the local information processing device 2000.

[0064] The optical module is a tool for realizing the mutual conversion between optical signals and electrical signals. During the conversion process between optical signals and electrical signals, the information does not change, but the encoding and decoding method of the information can change.

[0065] Figure 2FIG. 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 structures related to the host computer 100 and the optical module 200 are shown. Figure 2 As shown, the host computer 100 also includes a PCB circuit board 105 arranged in the shell, a cage 106 arranged on the surface of the PCB circuit board 105, a heat sink 107 arranged on the cage 106, and an electrical connector (not shown in the figure) arranged inside the cage 106. The heat sink 107 has a protruding structure that increases the heat dissipation area, and the fin-shaped structure is a common protruding structure.

[0066] 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 interface of the optical module 200 is connected to the electrical connector inside the cage 106.

[0067] 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, a light emitting component 400 and a light receiving component 500. However, the present disclosure is not limited thereto. In some embodiments, the optical module 200 includes one of the light emitting component 400 and the light receiving component 500.

[0068] 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.

[0069] 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 perpendicular to the bottom plate 2021; the upper shell 201 includes a cover plate 2011, and the cover plate 2011 is covered on the two upper side plates of the lower shell 202 to form the above-mentioned shell.

[0070] In some embodiments, the lower shell 202 includes a bottom plate 2021 and a first lower side plate 2022 and a second lower side plate 2023 located on both sides of the bottom plate 2021 and perpendicular to 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 perpendicular to the cover plate 2011, and the two upper side plates are combined with the two lower side plates to achieve the upper shell 201 covering the lower shell 202.

[0071] 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 3 Alternatively, 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 interface, and the gold finger 301 of the circuit board 300 extends from the electrical interface and is inserted into the electrical connector of the host computer; the opening 205 is an optical port, which is configured to access the optical fiber 101 so that the optical fiber 101 is connected to the optical emitting component 400 and / or the optical receiving component 500 in the optical module 200.

[0072] The assembly method of combining the upper shell 201 and the lower shell 202 is adopted, which facilitates the installation of components such as the circuit board 300, the light emitting component 400, and the light receiving component 500 into the above-mentioned shell, and the upper shell 201 and the lower shell 202 can encapsulate and protect the shapes of these components. In addition, when assembling components such as the circuit board 300, the light emitting component 400 and the light receiving component 500, it is convenient to deploy the positioning components, heat dissipation components, and electromagnetic shielding components of these devices, which is conducive to the automated implementation of production.

[0073] In some embodiments, the upper shell 201 and the lower shell 202 are made of metal materials to facilitate electromagnetic shielding and heat dissipation.

[0074] 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.

[0075] 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. 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 snap-fit ​​fixed connection between the optical module 200 and the host computer, so that the optical module 200 can be pulled out of the cage 106.

[0076] The circuit board 300 includes circuit traces, electronic components and chips, etc. The electronic components and chips are connected together 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, triodes, metal-oxide-semiconductor field-effect transistors (MOSFET), etc. The chips may include microcontroller units (MCU), laser driver chips, transimpedance amplifiers (TIA), limiting amplifiers, clock and data recovery chips (CDR), power management chips, and digital signal processing (DSP) chips.

[0077] 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 is also easy to insert into the electrical connector in the upper computer cage.

[0078] The circuit board 300 further includes a gold finger 301 formed on the end surface thereof, and 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 gold finger 301 is configured to establish an electrical connection with the host computer to achieve power supply, grounding, I2C signal transmission, data signal transmission, etc.

[0079] 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.

[0080] The light emitting component 400 and / or the light receiving component 500 are located on the side of the circuit board 300 away from the gold finger 301; in some embodiments, the light emitting component 400 and the light receiving component 500 are physically separated from the circuit board 300, and then electrically connected to the circuit board 300 through corresponding flexible circuit boards or electrical connectors; in some embodiments, the light emitting component and / or the light receiving component can be directly set on the circuit board 300, can be set on the surface of the circuit board, and can also be set on the side of the circuit board. In some embodiments, the light emitting component 400 can be set at the avoidance hole of the circuit board.

[0081] Figure 5 A schematic diagram of a local structure of an optical module provided according to some embodiments. Figure 6 for Figure 5 A partial enlarged view of the Figure 5 and Figure 6 As shown, in some embodiments, the optical module may include one or more optical port adapters. The optical port adapter is located at the optical port 205, one end of which is connected to the external optical fiber, and the other end is connected to the internal optical fiber. The optical port adapter can be used to transfer an optical signal from an external optical fiber to an internal optical fiber; or transfer an optical signal from an internal optical fiber to an external optical fiber.

[0082] In some embodiments, the optical module may include an optical port adapter 700. The optical port adapter 700 is located at the optical port 205, one end of the optical port adapter 700 is connected to the external optical fiber, and the other end is connected to the first internal optical fiber 710. The optical port adapter 700 can be used to transfer optical signals from the external optical fiber to the internal optical fiber, and transfer optical signals from the internal optical fiber to the external optical fiber. That is, in some embodiments, the first internal optical fiber 710 contains the transmission signal light emitted by the optical transmission component 400, and the first internal optical fiber 710 also contains the reception signal light transmitted to the optical receiving component 500 via the external optical fiber.

[0083] In some embodiments, the optical module may include a multi-port optical device 900. The multi-port optical device 900 may be connected to the optical port adapter 700. The multi-port optical device 900 may be provided with a first opening 910, one end of the first internal optical fiber 710 is connected to the optical port adapter 700, and the other end of the first internal optical fiber 710 is connected to the multi-port optical device 900 through the first opening 910. The first internal optical fiber 710 realizes an optical connection between the multi-port optical device 900 and the optical port adapter 700.

[0084] The multi-port optical device 900 can be used to realize the combination of received signal light and transmitted signal light.

[0085] The multi-port optical device 900 may be provided with a second opening 920, one end of the second internal optical fiber 410 is connected to the light emitting component 400, and the other end of the second internal optical fiber 410 is connected to the multi-port optical device 900 through the second opening 920. The second internal optical fiber 410 realizes the optical connection between the multi-port optical device 900 and the light emitting component 400.

[0086] One end of the third internal optical fiber 510 is connected to the light receiving component 500, and the other end of the third internal optical fiber 510 is connected to the multi-port optical device 900 through the second opening 920. The third internal optical fiber 510 realizes the optical connection between the multi-port optical device 900 and the light receiving component 500.

[0087] The multi-port optical device 900 can be used to realize the combination of the received signal light and the transmitted signal light. The multi-port optical device 900 can be used to combine the transmitted signal light located in the second internal optical fiber 410 and the received signal light located in the third internal optical fiber 510 into the first internal optical fiber 710, so that the first internal optical fiber 710 has a single-fiber bidirectional optical channel.

[0088] In some embodiments, the fiber outlet of the optical port adapter 700 faces the right side, and the port of the multi-port optical device faces the right side. The ports of the optical port adapter 700 and the multi-port optical device face the same direction. In order to reduce the loss of the signal light by the first internal optical fiber 710, in some embodiments, the optical module may include an optical fiber rack 800. The optical fiber rack 800 is disposed on the upper surface of the circuit board 300. After the first internal optical fiber 710 is wound on the optical fiber rack 800, the direction of the optical fiber is changed so that the first internal optical fiber 710 is connected to the first opening 910.

[0089] After the second internal optical fiber 410 is wound on the optical fiber rack 800 , the direction of the optical fiber is changed so that the second internal optical fiber 410 is connected to the second opening 920 .

[0090] After the third internal optical fiber 510 is wound on the optical fiber rack 800 , the direction of the optical fiber is changed so that the third internal optical fiber 510 is connected to the second opening 920 .

[0091] Figure 7 FIG. 1 is a schematic diagram of the structure of a multi-port optical device provided according to some embodiments. Figure 7 As shown, the multi-port optical device 900 may include a first opening 910 and a second opening 920 .

[0092] One end of the first internal optical fiber 710 is connected to the optical port adapter 700 , and the other end of the first internal optical fiber 710 is connected to the multi-port optical device 900 via the first opening 910 .

[0093] One end of the second internal optical fiber 410 is connected to the light emitting component 400, and the other end of the second internal optical fiber 410 is connected to the multi-port optical device 900 via the second opening 920. One end of the third internal optical fiber 510 is connected to the light receiving component 500, and the other end of the third internal optical fiber 510 is connected to the multi-port optical device 900 via the second opening 920.

[0094] The multi-port optical device 900 may be a square structure. The first opening 910 and the second opening 920 are located on a first side wall 901 of the multi-port optical device 900 .

[0095] In some embodiments, the first side wall 901 of the multi-port optical device 900 is a side close to the light receiving component 500 and the light emitting component 400, and the first opening 910 and the second opening 920 are located on the first side wall 901 of the multi-port optical device 900 to facilitate the fiber output direction of the second internal optical fiber 410 and the third internal optical fiber 510 toward the light emitting component 400 and the light receiving component 500.

[0096] The first opening 910 and the second opening 920 face toward the circuit board.

[0097] In some embodiments, the light emitting component 400 can be used to emit signal lights of multiple different wavelengths. For example, the light emitting component 400 can be used to emit signal lights of four different wavelengths. The second internal optical fiber is used to transmit the light of the emission light beam, and the emission light beam can include signal lights of four different wavelengths.

[0098] In some embodiments, the light receiving component 500 can be used to receive signal lights of multiple different wavelengths. For example, the light receiving component 500 can be used to receive signal lights of four different wavelengths. The wavelength of the light emitting component 400 is different from the wavelength of the light receiving component.

[0099] The second side wall 902 of the multi-port optical device 900 is an upper surface, and the third side wall 903 of the multi-port optical device 900 is a front surface.

[0100] Figure 8 FIG. 1 is a schematic diagram of a partial splitting of an optical module according to some embodiments. Figure 8 As shown, the optical port adapter 700 and the multi-port optical device 900 are located on one side of the circuit board 300 .

[0101] The upper surface of the optical port adapter 700 is higher than the upper surface of the circuit board 300 , so that the first internal optical fiber 710 is located above the circuit board 300 .

[0102] The upper surface of the multi-port optical device 900 is higher than the upper surface of the circuit board 300 . The first opening 910 and the second opening 920 are located above the circuit board 300 , so that the second internal optical fiber 410 and the third internal optical fiber 510 are located above the circuit board 300 .

[0103] In some embodiments, the thickness of the optical port adapter 700 in the vertical direction is greater than the thickness of the circuit board 300 , and the optical port adapter 700 is disposed on one side of the circuit board 300 , which can reduce the thickness of the optical module.

[0104] In some embodiments, the thickness of the multi-port optical device 900 in the vertical direction is greater than the thickness of the circuit board 300. The multi-port optical device 900 is disposed on one side of the circuit board 300, which can reduce the thickness of the optical module.

[0105] A first optical fiber port 801 is disposed at one end of the optical fiber rack 800. The first optical fiber port 801 is disposed adjacent to the optical port adapter 700 to facilitate the winding and fixing of the first internal optical fiber 710.

[0106] In some embodiments, the opening of the first optical fiber port 801 faces the optical port adapter 700 .

[0107] One end of the optical fiber rack 800 is provided with a second optical fiber port 802. The second optical fiber port 802 is disposed adjacent to the first side wall 901 of the multi-port optical device 900 to facilitate the fixation of the optical fiber connected to the multi-port optical device 900. The opening of the second optical fiber port 802 faces the second opening 920.

[0108] The opening width of the second optical fiber port 802 is greater than the width of the second opening 920 , so that the optical fiber connected through the second opening 920 of the multi-port optical device 900 can enter the second optical fiber port 802 without bending, thereby reducing loss.

[0109] A third optical fiber port 803 is provided at one end of the optical fiber rack 800. The opening of the third optical fiber port 803 faces the first opening 910. The opening width of the third optical fiber port 803 is greater than the width of the first opening 910, so that the optical fiber connected through the first opening 910 of the multi-port optical device 900 can enter the third optical fiber port 803 without bending, thereby reducing loss.

[0110] Fig. 9 The figure shows a first angle structure of a fiber optic rack according to some embodiments. Fig.10 FIG. 2 is a schematic diagram of a second angle structure of an optical fiber rack provided according to some embodiments. Fig. 9 and Fig.10 The fiber optic rack structure is displayed from different angles.

[0111] Fig.11 The diagram is a schematic diagram of the structure of an optical fiber rack, a multi-port optical device, an optical port adapter, and a first internal optical fiber provided according to some embodiments. Fig.12 The diagram is a schematic diagram of a fiber rack, a multi-port optical device, a second internal optical fiber, and a third internal optical fiber structure provided according to some embodiments.

[0112] according to Fig. 9 , Fig.10 , Fig.11 and Fig.12 As shown, the optical fiber rack 800 may include a first baffle 807. The first baffle 807 is located at the optical port position. The first baffle 807 is located between the first optical fiber port 801 and the second optical fiber port 802. The first baffle 807 is located between the optical port adapter 700 and the multi-port optical device 900.

[0113] In some embodiments, the first baffle 807 can limit the position of the multi-port optical device 900 in the front-to-back direction. The first baffle 807 can limit the position of the optical port adapter 700 in the front-to-back direction.

[0114] The optical fiber rack 800 may include a first buckle 8071, which faces the right direction. The first buckle 8071 can be used to limit the position of the optical fiber inside the first baffle 807 to prevent the optical fiber from bulging upward and causing bending.

[0115] In some embodiments, the optical fiber rack 800 may include a second baffle 804. The second baffle 804 is located away from the optical port and between the optical emitting component 400 and the optical receiving component 500.

[0116] The second baffle 804 can limit the position of the light emitting component 400 in the front-to-back direction. The second baffle 804 can limit the position of the light receiving component 500 in the front-to-back direction.

[0117] The optical fiber rack 800 may include a second buckle 8041, and a first buckle 8071 faces the left side. The first buckle 8071 may be vertically arranged with the second baffle 804. The second buckle 8041 may be used to limit the position of the optical fiber inside the second baffle 804 to prevent the optical fiber from bulging upward and causing bending.

[0118] In some embodiments, the optical fiber rack 800 may include a third baffle 805. The third baffle 805 is adjacent to the first lower side plate 2022. The outer side of the third baffle 805 is in contact with and connected to the first lower side plate 2022.

[0119] The optical fiber rack 800 may include a third buckle 8051, which faces the front side. The third buckle 8051 may be arranged at an angle with the third baffle 805. The third buckle 8051 may be used to limit the position of the optical fiber inside the third baffle 805 to prevent the optical fiber from bulging upward and causing bending.

[0120] The upper surface of the optical fiber rack 800 is provided with a plurality of protrusions so that the recessed portion forms an optical fiber channel, and the optical fiber channels are interconnected to facilitate the bending of the optical fiber in the optical fiber channel.

[0121] In some embodiments, the optical fiber rack 800 may include a fourth baffle 806. The fourth baffle 806 is adjacent to the second lower side plate 2023. The outer side of the fourth baffle 806 is in contact with and connected to the second lower side plate 2023.

[0122] The optical fiber rack 800 may include a fourth buckle 8061, which faces the rear side. The fourth buckle 8061 may be arranged at an angle with the fourth baffle 806. The fourth buckle 8061 may be used to limit the position of the optical fiber inside the fourth baffle 806 to prevent the optical fiber from protruding upward and causing bending.

[0123] The fourth baffle 806 may include a first limiting portion 811, and the first limiting portion 811 is used to make way for the fixing rod of the lower housing 202. The fixing rod may be embedded in the first limiting portion 811 to achieve installation and positioning of the optical fiber rack and the lower housing.

[0124] The fourth baffle 806 may include a first protrusion 812 , and the first protrusion 812 may be used to limit and fix with the lower housing. The first protrusion 812 protrudes outward relative to the body of the fourth baffle 806 .

[0125] In some embodiments, a first support portion 630 is provided at the bottom of the optical fiber rack 800. The first support portion 630 may be located on a side adjacent to the second lower side plate. The first support portion 630 protrudes downward relative to the lower surface of the optical fiber rack body, and the lower surface of the first support portion 630 may be in contact with and connected to the circuit board.

[0126] The bottom of the optical fiber rack 800 is provided with a second support portion 640. The second support portion 640 may be located on a side adjacent to the first lower side plate. The second support portion 640 protrudes downward relative to the lower surface of the optical fiber rack body, and the lower surface of the second support portion 640 may be in contact with the circuit board.

[0127] In some embodiments, the first support portion 630 and the second support portion 640 can be used to raise the lower surface height of the fiber rack 800 so that the lower surface of the fiber rack 800 body is higher than the upper surface of the circuit board. The electrical components on the upper surface of the circuit board can be located between the lower surface of the fiber rack 800 body and the circuit board, reducing the space occupied by the optical module.

[0128] The optical fiber rack 800 isolates the optical fiber from the electrical components, so that the optical fiber can be arranged according to the channel lines on the upper surface of the optical fiber rack, avoiding the electrical components from blocking the position of the optical fiber and forming bends, thereby reducing losses.

[0129] In some embodiments, the first supporting portion 630 may be provided with a first avoiding portion 6301. The first avoiding portion 6301 may be used to avoid electrical devices within the covering range of the first avoiding portion 6301.

[0130] The second supporting portion 640 may be provided with a second avoiding portion 6401. The second avoiding portion 6401 may be used to avoid electrical components within the covering range of the second avoiding portion 6401.

[0131] The third baffle 805 may include a second protrusion 813 , and the second protrusion 813 may be used to limit and fix with the lower housing. The second protrusion 813 protrudes outward relative to the body of the third baffle 805 .

[0132] In some embodiments, the first protrusion 812 can be deformed by force, and the second protrusion 813 can be deformed by force. When the optical fiber rack is installed in the lower housing, the first protrusion 812 and the second protrusion 813 can be deformed by force, so that the optical fiber rack is in contact with the lower housing, thereby improving the stability of the optical fiber rack.

[0133] Fig.13 A schematic diagram of the first angle structure of a lower shell provided according to some embodiments. Fig.14 FIG. 2 is a schematic diagram of a second angle structure of a lower housing provided according to some embodiments. Fig.13 and Fig.14 As shown, the lower shell 202 includes a bottom plate 2021 and a first lower side plate 2022 and a second lower side plate 2023 located on both sides of the bottom plate 2021 and arranged perpendicularly to the bottom plate 2021 .

[0134] A partition plate 2024 is provided at the optical port of the lower housing 202. The partition plate 2024 is provided between the first lower side plate 2022 and the second lower side plate 2023, dividing the optical port into two channels.

[0135] In some embodiments, the partition 2024 divides the optical port into a first optical channel 210 and a second optical channel 220. The first optical channel 210 is a channel located between the partition 2024 and the first lower side plate 2022. The second optical channel 220 is a channel located between the partition 2024 and the second lower side plate 2023.

[0136] In some embodiments, the second optical channel 220 is connected with the multi-port optical device 900. The multi-port optical device 900 may be embedded in the second optical channel 220.

[0137] Fig.15 The diagram is a schematic diagram of a matching structure of a lower housing, a circuit board, a multi-port optical device and an optical port adapter according to some embodiments. In some embodiments, the second optical channel 220 is a rectangular parallelepiped structure, and its shape is adapted to the appearance of the multi-port optical device 900.

[0138] The lower housing 202 may be provided with a blocking arm 211. The blocking arm 211 is disposed between the partition 2024 and the second lower side plate 2023. The blocking arm 211 may be used to block the second optical channel 220 to prevent electromagnetic signals from escaping the optical module from the second optical channel 220, thereby improving the electromagnetic shielding effect. The blocking arm 211 may be used to block the second optical channel 220 to prevent external dust from entering the optical module from the second optical channel 220, thereby improving the stability of the optical module. One end of the multi-port optical device 900 abuts against the right side of the blocking arm 211 to achieve blocking of the second optical channel 220 by the blocking arm 211.

[0139] In some embodiments, the height of the blocking arm 211 may be greater than the height of the multi-port optical device 900. The height of the partition plate 2024 is greater than the height of the multi-port optical device 900, so that the multi-port optical device 900 can be entirely embedded in the second optical channel 220.

[0140] In some embodiments, the optical port adapter 700 is located in the first optical channel 210 . An adapting and fixing portion 213 may be provided in the first optical channel 210 , and the adapting and fixing portion 213 may be used to fix the optical port adapter 700 .

[0141] In some embodiments, the lower housing 202 may be provided with an optical port baffle 2025. The optical port baffle 2025 is arranged perpendicular to the bottom plate 2021, and the optical port baffle 2025 abuts against one side of the circuit board 300. The optical port baffle 2025 can be used to limit the circuit board 300 in the left and right directions.

[0142] In some embodiments, the partition plate 2024 may be provided with a third avoidance portion 20241. The upper surface of the third avoidance portion 20241 is lower than the upper surface of the optical port baffle 2025, so as to facilitate the clamping and fixing of the optical port adapter 700 and the multi-port optical device 900 during the installation process.

[0143] In some embodiments, the lower housing 202 may be provided with an upper housing baffle 212. The upper housing baffle 212 is located above the first light channel 210, and the upper housing baffle 212 may limit the position of the upper housing 201 in the left and right directions. The upper housing baffle 212 may abut against one side of the upper housing to limit the position of the upper housing 201 in the left and right directions.

[0144] In some embodiments, the inner wall of the second lower side plate 2023 may be provided with a fixing rod 20231. The fixing rod 20231 protrudes from the inner wall of the second lower side plate 2023, and the fixing rod 20231 may be embedded in the first limiting portion 811 to achieve installation and positioning of the optical fiber rack and the lower housing.

[0145] Fig.16 A schematic diagram of the first angle structure of an upper shell provided according to some embodiments. Fig.17 FIG. 2 is a schematic diagram of a second angle structure of an upper housing provided according to some embodiments. Fig.16 and Fig.17 As shown, the upper shell 201 includes a cover plate 2011 , and a first upper side plate 2012 and a second upper side plate 2013 located on both sides of the cover plate 2011 and arranged perpendicularly to the cover plate 2011 .

[0146] Fig.18 FIG. 1 is a cross-sectional schematic diagram of an optical module provided according to some embodiments. Fig.18As shown, a shell cover 2014 may be provided below the cover plate 2011. The lower surface of the shell cover 2014 is lower than the lower surface of the cover plate 2011. The shell cover 2014 matches the second optical channel 220, and the shell cover 2014 may be embedded inside the second optical channel 220. The shell cover 2014 is located above the multi-port optical device 900.

[0147] In some embodiments, the left end of the shell cover 2014 protrudes from the left end of the cover plate 2011. The upper shell baffle 212 is located on the right side of the baffle arm 211. The left side of the cover plate 2011 abuts against the right side wall of the upper shell baffle 212, and the upper shell baffle 212 defines the position of the cover plate 2011. The left end of the shell cover 2014 abuts against the right side of the baffle arm 211, and the shell cover 2014 blocks the top of the second optical channel 220, so as to prevent electromagnetic signals from escaping the optical module from the second optical channel 220, thereby improving the electromagnetic shielding effect. The shell cover 2014 can also prevent external dust from entering the optical module from the second optical channel 220, thereby improving the stability of the optical module.

[0148] Since the above embodiments are all described by citing and combining with other embodiments, different embodiments have the same parts, and the same and similar parts between the embodiments in this specification can be referred to each other. No further detailed description is given here.

[0149] It should be noted that, in this specification, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a circuit structure, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such circuit structure, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the circuit structure, article or device including the element.

[0150] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the disclosure of the present application. The present application is intended to cover any variation, use or adaptation of the present application, which follows the general principles of the present application and includes common knowledge or customary techniques in the art that are not disclosed in the present application. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present application are indicated by the content of the claims.

[0151] The above-described embodiments of the present application do not constitute a limitation on the protection scope of the present application.

Claims

1. An optical module, characterized in that: include: The upper shell includes: a cover plate and a shell cover; The shell cover is located below the cover plate, and the left end of the shell cover protrudes from the left end of the cover plate; A lower shell is covered on the upper shell and is covered with the upper shell to form a shell with an optical port; The lower shell comprises: a bottom plate, a first lower side plate and a second lower side plate located on both sides of the bottom plate; The bottom plate is provided with a partition plate, which is located between the first lower side plate and the second lower side plate, and the partition plate divides the optical port into a first optical channel and a second optical channel; A circuit board is arranged between the upper shell and the lower shell; An optical port adapter, located at one side of the circuit board and arranged in the first optical channel; A multi-port optical device is arranged in the second optical channel, and the optical port adapter is connected to the multi-port optical device through a first internal optical fiber; a light emitting component connected to the multi-port optical device via a second internal optical fiber; a light receiving component connected to the multi-port optical device via a third internal optical fiber; Wherein, the bottom plate comprises: a blocking arm, which is arranged between the partition plate and the second lower side plate, and the multi-port optical device abuts against the right side of the blocking arm; The shell cover is embedded in the second optical channel, and the shell cover is against the right side of the blocking arm, and the multi-port optical device is located between the shell cover and the bottom plate.

2. The optical module according to claim 1, characterized in that: The multi-port optical device comprises: a first opening, wherein the second internal optical fiber and the third internal optical fiber are connected to the multi-port optical device via the first opening; A second opening, through which the first internal optical fiber is connected to the multi-port optical device.

3. The optical module according to claim 2, characterized in that: The first opening and the second opening face toward the circuit board: The first opening is located between the optical port adapter and the second opening.

4. The optical module according to claim 1, characterized in that: The lower housing comprises: an upper housing baffle plate, located above the first light channel, one end of the cover plate abutting against an end of the upper housing baffle plate; The left end of the shell cover protrudes from the left end of the cover plate.

5. The optical module according to claim 1, characterized in that: include: An optical fiber rack, located above the circuit board, and used to fix the first internal optical fiber, the second internal optical fiber, and the third internal optical fiber; The optical fiber rack is located between the optical port adapter and the light emitting component.

6. An optical module, characterized in that: include: The upper shell includes: a cover plate and a shell cover; The shell cover is located below the cover plate, and the left end of the shell cover protrudes from the left end of the cover plate; A lower housing, which covers the upper housing and is combined with the upper housing to form a housing with an optical port; The lower shell comprises: a bottom plate, a first lower side plate and a second lower side plate located on both sides of the bottom plate; The bottom plate is provided with a partition plate, which is located between the first lower side plate and the second lower side plate, and the partition plate divides the optical port into a first optical channel and a second optical channel; The first lower side plate is provided with a fixing rod; A circuit board is arranged between the upper shell and the lower shell; An optical port adapter, located at one side of the circuit board and arranged in the first optical channel; A multi-port optical device is arranged in the second optical channel, and the optical port adapter is connected to the multi-port optical device through a first internal optical fiber; a light emitting component connected to the multi-port optical device via a second internal optical fiber; a light receiving component connected to the multi-port optical device via a third internal optical fiber; The optical fiber rack is located above the circuit board and includes: a first limiting portion, and the fixing rod is embedded in the first limiting portion; wherein the bottom plate includes: a blocking arm, which is arranged between the partition and the second lower side plate, and the multi-port optical device is against the right side of the blocking arm.

7. The optical module according to claim 6, characterized in that: The multi-port optical device comprises: a first opening, wherein the second internal optical fiber and the third internal optical fiber are connected to the multi-port optical device via the first opening; a second opening, through which the first internal optical fiber is connected to the multi-port optical device; The first opening and the second opening face toward the circuit board: The first opening is located between the optical port adapter and the second opening.

8. The optical module according to claim 7, characterized in that: The optical fiber rack comprises: A first optical fiber port is located at one side of the optical port adapter, and the first internal optical fiber is connected to the optical port adapter at the first optical fiber port: A second optical fiber port, corresponding to the first opening position, the second internal optical fiber and the third internal optical fiber are connected to the multi-port optical device at the second optical fiber port; The third optical fiber port corresponds to the second opening position, and the first internal optical fiber is connected to the multi-port optical device at the third optical fiber port.

9. The optical module according to claim 6, characterized in that: The lower surface of the optical fiber rack is provided with: A first support portion is located on a side adjacent to the second lower side plate, and the first support portion protrudes from a lower surface of the optical fiber rack; a second support portion is located on a side adjacent to the first lower side plate, and the second support portion protrudes from a lower surface of the optical fiber rack; The first supporting portion is in contact with and connected to the circuit board; The second supporting portion is in contact with and connected to the circuit board.

10. The optical module according to claim 6, characterized in that: The lower housing comprises: an upper housing baffle plate, located above the first light channel, one end of the cover plate abutting against an end of the upper housing baffle plate; The left end of the shell cover protrudes from the left end of the cover plate.

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