WO2022041801A1 - 一种光模块 - Google Patents

一种光模块 Download PDF

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Publication number
WO2022041801A1
WO2022041801A1 PCT/CN2021/089077 CN2021089077W WO2022041801A1 WO 2022041801 A1 WO2022041801 A1 WO 2022041801A1 CN 2021089077 W CN2021089077 W CN 2021089077W WO 2022041801 A1 WO2022041801 A1 WO 2022041801A1
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WO
WIPO (PCT)
Prior art keywords
optical
shielding
sub
side plate
shielding strip
Prior art date
Application number
PCT/CN2021/089077
Other languages
English (en)
French (fr)
Inventor
迟亚勋
薛楠
陶旭贞
杨鹏
Original Assignee
青岛海信宽带多媒体技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 青岛海信宽带多媒体技术有限公司 filed Critical 青岛海信宽带多媒体技术有限公司
Priority to US17/549,797 priority Critical patent/US11867960B2/en
Publication of WO2022041801A1 publication Critical patent/WO2022041801A1/zh

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4274—Electrical aspects
    • G02B6/4277—Protection against electromagnetic interference [EMI], e.g. shielding means
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4256—Details of housings
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4274—Electrical aspects
    • G02B6/4284—Electrical aspects of optical modules with disconnectable electrical connectors
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4292—Coupling light guides with opto-electronic elements the light guide being disconnectable from the opto-electronic element, e.g. mutually self aligning arrangements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
    • G02B6/421—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical component consisting of a short length of fibre, e.g. fibre stub
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4246—Bidirectionally operating package structures
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4256—Details of housings
    • G02B6/426—Details of housings mounting, engaging or coupling of the package to a board, a frame or a panel
    • G02B6/4261—Packages with mounting structures to be pluggable or detachable, e.g. having latches or rails

Definitions

  • the present disclosure relates to the technical field of optical communication, and in particular, to an optical module.
  • the optical module realizes the function of photoelectric conversion in the field of optical communication technology, and is one of the key devices in the optical communication equipment.
  • the optical module includes many electronic components and optical components.
  • Electromagnetic waves radiated out of the optical module will cause EMI (Electromagnetic Interference) to other electronic equipment.
  • EMI Electromagnetic Interference
  • EMI may interfere with the normal operation of electronic instruments and equipment, interfere with the transmission and reception of signals, and cause information errors and control failures. Therefore, in order to prevent the EMI of the optical module from harming other devices or components, it is necessary to achieve a good electromagnetic shielding effect from the structure of the optical module, so as to prevent the electromagnetic waves generated by the electronic components from diffracting out of the optical module and causing electromagnetic interference to other devices outside the optical module.
  • An optical module provided by the present disclosure includes: an upper casing including an optical port part of the upper casing, a top end of the optical port part of the upper casing is provided with a first fixing groove; a lower casing, including the optical port of the lower casing the optical port part of the lower casing is matched and connected to the optical port part of the upper casing, and the top end of the optical port part of the lower casing is provided with a second fixing groove; In the fixing groove, the other side is clamped in the second fixing groove; wherein, a first shielding strip is arranged at the matching connection between the optical opening part of the upper casing and the optical opening part of the lower casing, and the second A shielding strip extends in multiple directions.
  • Fig. 1 is a schematic diagram of the connection relationship of optical communication terminals
  • Fig. 2 is a schematic diagram of the structure of an optical network unit
  • FIG. 3 is a schematic structural diagram of an optical module according to an embodiment of the present disclosure.
  • FIG. 4 provides a schematic diagram of an exploded structure of an optical module according to an embodiment of the present disclosure
  • FIG. 5 is a schematic structural diagram of a lower case cooperating with an optical fiber interface according to an embodiment of the present disclosure
  • FIG. 6 is a schematic structural diagram of a lower casing according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of a shielding strip provided on a lower casing according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of the cooperation between an upper casing and an optical fiber interface according to an embodiment of the present disclosure
  • FIG. 9 is a schematic structural diagram of an upper casing provided by an embodiment of the present disclosure.
  • FIG. 10 is a cross-sectional view 1 of an optical module provided by the implementation of the present disclosure.
  • FIG. 11 is a second cross-sectional view of an optical module provided by the implementation of the present disclosure.
  • One of the core links of optical fiber communication is the mutual conversion of optical and electrical signals.
  • Optical fiber communication uses information-carrying optical signals to transmit in information transmission equipment such as optical fibers/optical waveguides.
  • the passive transmission characteristics of light in optical fibers/optical waveguides can realize low-cost, low-loss information transmission; while computers and other information processing equipment Electrical signals are used.
  • the optical module realizes the mutual conversion function of the above-mentioned optical and electrical signals in the technical field of optical fiber communication, and the mutual conversion of the optical signal and the electrical signal is the core function of the optical module.
  • the optical module realizes the electrical connection with the external host computer through the golden fingers on its internal circuit board.
  • the main electrical connections include power supply, I2C signal, data signal and grounding, etc.
  • the optical module realizes the optical connection with the external optical fiber through the optical interface. There are many ways to connect external optical fibers, and a variety of optical fiber connector types are derived; the use of gold fingers to achieve electrical connection at the electrical interface has become the mainstream connection method in the optical module industry.
  • the definition of the pin has formed a variety of industry protocols/standards; the optical connection method realized by the optical interface and the optical fiber connector has become the mainstream connection method in the optical module industry. Based on this, the optical fiber connector has also formed a variety of industry standards. Such as LC interface, SC interface, MPO interface, etc., the optical interface of the optical module is also designed for the adaptability of the optical fiber connector. Therefore, there are various types of optical fiber adapters set at the optical interface.
  • FIG. 1 is a schematic diagram of a connection relationship of an optical communication terminal.
  • the connection of the optical communication terminal mainly includes the interconnection between the optical network terminal 100, the optical module 200, the optical fiber 101 and the network cable 103;
  • One end of the optical fiber 101 is connected to the remote server, and one end of the network cable 103 is connected to the local information processing device.
  • the connection between the local information processing device and the remote server is completed by the connection between the optical fiber 101 and the network cable 103; and the connection between the optical fiber 101 and the network cable 103 is completed by The optical network terminal 100 with the optical module 200 is completed.
  • the optical interface of the optical module 200 is externally connected to the optical fiber 101, and a two-way optical signal connection is established with the optical fiber 101;
  • the electrical interface of the optical module 200 is externally connected to the optical network terminal 100, and a two-way electrical signal connection is established with the optical network terminal 100;
  • the two-way mutual conversion between optical signals and electrical signals is realized inside the optical module, so as to establish an information connection between the optical fiber and the optical network terminal; in an embodiment of the present disclosure, the optical signal from the optical fiber 101 is converted into electrical signals by the optical module.
  • the signal is then input into the optical network terminal 100 , and the electrical signal from the optical network terminal 100 is converted into an optical signal by the optical module and input into the optical fiber 101 .
  • the optical network terminal has an optical module interface 102, which is used to access the optical module 200 and establish a two-way electrical signal connection with the optical module 200;
  • Signal connection generally the electrical signal of the Ethernet protocol, which belongs to a different protocol/type from the electrical signal used by the optical module
  • the connection between the optical module 200 and the network cable 103 is established through the optical network terminal 100, in a certain implementation of the present disclosure
  • the optical network terminal transmits the signal from the optical module to the network cable, and transmits the signal from the network cable to the optical module, and the optical network terminal serves as the upper computer of the optical module to monitor the operation of the optical module.
  • the optical network terminal is the host computer of the optical module. It provides data signals to the optical module and receives data signals from the optical module. So far, the remote server communicates with the local information processing equipment through optical fibers, optical modules, optical network terminals and network cables. Establish a two-way signal transmission channel.
  • Common local information processing equipment includes routers, home switches, electronic computers, etc.; common optical network terminals include optical network units ONU, optical line terminals OLT, data center servers, and data center switches.
  • FIG. 2 is a schematic structural diagram of an optical network terminal.
  • the optical network terminal 100 has a circuit board 105, and a cage 106 is provided on the surface of the circuit board 105; an electrical connector is provided inside the cage 106 for connecting to an electrical interface (such as a gold finger) of an optical module. etc.); a radiator 107 is provided on the cage 106, and the radiator 107 has raised portions such as fins that increase the heat dissipation area.
  • the optical module 200 is inserted into the optical network terminal, the electrical interface of the optical module is inserted into the electrical connector inside the cage 106 , and the optical interface of the optical module is connected to the optical fiber 101 .
  • the cage 106 is located on the circuit board, and the electrical connectors on the circuit board are wrapped in the cage, so that the interior of the cage is provided with electrical connectors; the optical module is inserted into the cage, the optical module is fixed by the cage, and the heat generated by the optical module is conducted to the cage. 106 and then diffuse through a heat sink 107 on the cage.
  • FIG. 3 is a schematic structural diagram of an optical module according to an embodiment of the present disclosure
  • FIG. 4 is a schematic structural diagram of an exploded optical module according to an embodiment of the present disclosure.
  • the optical module 200 provided by the embodiment of the present disclosure includes an upper casing 300 , a lower casing 400 , an unlocking component 201 , a circuit board 206 , an optical transceiver sub-module 205 , an optical fiber connector 202 and an optical fiber 207 .
  • the upper casing 300 is covered on the lower casing 400 to form a wrapping cavity with two openings; the outer contour of the wrapping cavity generally presents a square body, in an embodiment of the present disclosure, the lower casing includes a main board and Two side plates are located on both sides of the main board and are vertically arranged with the main board; the upper shell includes a cover plate, and the cover plate is closed on the two side plates of the upper shell to form a wrapping cavity; the upper shell can also include a The two side walls on both sides of the cover plate and the two side walls vertically arranged with the cover plate are combined with the two side plates to realize that the upper casing is covered on the lower casing.
  • the two openings can be the openings 203 and 204 at both ends of the casing in the same direction, or can be two openings of the casing in different directions.
  • the aforementioned same direction refers to the direction in which the connection line between the openings 203 and 2044 is located, which is consistent with the length direction of the optical module 200 ;
  • the aforementioned different directions refer to the direction in which the connection line between the openings 204 and 205 is located and the length of the optical module 200 .
  • the directions are inconsistent, for example, the opening 203 is located on the end face of the optical module 200 , and the opening 204 is located on the side of the optical module 200 .
  • One of the openings is the electrical port 203, and the gold fingers of the circuit board protrude from the electrical port 203 and are inserted into the host computer such as the optical network terminal; the other opening is the optical port 204, which is used for external optical fiber access; the circuit board 300, the optical transceiver
  • the optoelectronic devices such as the sub-module 205 are located in the encapsulation cavity formed by the upper and lower casings.
  • the combination of the upper casing 300 and the lower casing 400 is adopted to facilitate the installation of components such as the optical transceiver sub-module 205 and the optical fiber 210 into the casing.
  • the upper casing 300 and the lower casing 400 form the outermost layer of the optical module.
  • Encapsulate the protective casing; the upper casing 300 and the lower casing 400 are generally made of metal material, which is conducive to realizing electromagnetic shielding and heat dissipation; generally, the casing of the optical module is not made into an integral part, so that when assembling circuit boards and other devices, positioning Components, heat dissipation and electromagnetic shielding components cannot be installed and are not conducive to production automation.
  • the unlocking component 201 is located on the outer wall of the encapsulation cavity/lower casing 400, and is used to realize the fixed connection between the optical module and the upper computer, or to release the fixed connection between the optical module and the upper computer.
  • the unlocking part 201 has an engaging part matched with the cage of the upper computer; pulling the end of the unlocking part can make the unlocking part move relatively on the surface of the outer wall; the optical module is inserted into the cage of the upper computer, and the optical module is moved by the engaging part of the unlocking part. It is fixed in the cage of the upper computer; by pulling the unlocking part, the engaging part of the unlocking part moves with it, thereby changing the connection relationship between the engaging part and the upper computer, so as to release the engaging relationship between the optical module and the upper computer, so that the The optical module is pulled out from the cage of the host computer.
  • the circuit board 206 is provided with circuit traces, electronic components (such as capacitors, resistors, triodes, MOS tubes) and chips (such as MCU, clock data recovery CDR, power management chip, data processing chip DSP) and the like.
  • electronic components such as capacitors, resistors, triodes, MOS tubes
  • chips such as MCU, clock data recovery CDR, power management chip, data processing chip DSP
  • the circuit board 206 connects the electrical components in the optical module together according to the circuit design through circuit wiring, so as to realize electrical functions such as power supply, electrical signal transmission, and grounding.
  • the circuit board is generally a rigid circuit board. Due to its relatively hard material, the rigid circuit board can also realize the bearing function. For example, the rigid circuit board can carry the chip smoothly; when the optical transceiver is located on the circuit board, the rigid circuit board can also provide Stable bearing; the rigid circuit board can also be inserted into the electrical connector in the upper computer cage.
  • metal pins/gold fingers are formed on one end surface of the rigid circuit board for connecting with Electrical connector connections; these are inconvenient to implement with flexible circuit boards.
  • Flexible circuit boards are also used in some optical modules as a supplement to rigid circuit boards; flexible circuit boards are generally used in conjunction with rigid circuit boards.
  • flexible circuit boards can be used to connect the rigid circuit boards and optical transceivers.
  • the optical transceiver sub-module 205 may adopt the structure form of TO (coaxial) package or COB (chip on board) package.
  • the optical transceiver sub-module 205 in FIG. 4 is in the form of a COB package structure.
  • the optical transceiver sub-module 205 is connected to the optical fiber connector 202 through the optical fiber 207 , and then connected to external light through the optical fiber connector 202 .
  • the optical port of the upper case 300 is provided with a first fixing groove
  • the optical port of the lower case 400 is provided with a second fixing groove.
  • One side of the joint 202 is matched with the first fixing groove, and the other side is matched with the second fixing groove.
  • a first shielding strip is arranged at the connection of the optical port of the housing, and the first shielding strip is used for electromagnetic shielding at the optical port of the optical module.
  • the first shielding strip includes several sub-shielding strips. Several segments of shielding strips can extend the first shielding strip in multiple directions, thereby realizing the electromagnetic shielding of the first shielding strip at the optical port of the optical module in the longitudinal and lateral directions, so as to ensure the shielding effect of the first shielding strip at the optical port of the optical module. .
  • the first shielding strip provided by the embodiment of the present disclosure may be formed by dispensing glue by a glue dispenser, and the glue may be conductive glue.
  • glue can be dispensed on the lower casing 400 by a glue dispenser, or glue can be dispensed on the upper casing 300 by a glue dispenser.
  • the embodiment of the present disclosure will be described in detail below by taking the example of dispensing glue on the lower casing 400 by a glue dispensing machine.
  • FIG. 5 is a schematic structural diagram of a lower case mating with an optical fiber interface according to an embodiment of the present disclosure.
  • the lower case 400 includes a lower case optical port 410 and a lower case cavity 420 , the lower case optical port 410 is used for fixing the optical fiber connector 202 , and the lower case cavity 420 is used for accommodating a circuit Board 206 and other devices.
  • the optical port portion 410 of the lower casing is provided with a second fixing groove 411 , and the optical fiber connector 202 is clamped in the second fixing groove 411 .
  • a first shielding strip 510 is disposed on the optical port 410 of the lower casing, and the extending direction of the first shielding strip 510 is not unique.
  • the first shielding strip 510 includes a plurality of sub-shielding strips extending in multiple directions, such as longitudinal, lateral and oblique directions. The first shielding strips 510 are distributed on both sides of the second fixing slot 411 .
  • the lower housing cavity portion 420 includes a main board 421 and a third side plate 422 and a fourth side plate 423 located on both sides of the main board 421 .
  • the top of the third side plate 422 is provided with a second shielding strip 520
  • the top of the fourth side plate 423 is provided with a third shielding strip 530.
  • the second shielding strip 520 and the third shielding strip 530 are used for electromagnetic shielding of the cavity of the optical module.
  • the second shielding strip 520 and the third shielding strip 530 may also be formed by dispensing glue through a glue dispenser.
  • FIG. 6 is a schematic structural diagram of a lower casing according to an embodiment of the present disclosure
  • FIG. 7 is a structural schematic diagram of a lower casing provided with a shielding strip according to an embodiment of the present disclosure.
  • the optical port 410 of the lower casing includes a first accommodating groove 412 and a second accommodating groove 413
  • the first shielding strip 510 includes a first sub-shielding strip 511 and a second sub-shielding strip 512 .
  • the first sub-shielding bar 511 is arranged in the first accommodating groove 412
  • the second sub-shielding bar 512 is arranged in the second accommodating slot 413 .
  • the first accommodating groove 412 extends in the longitudinal and transverse directions of the optical port 410 of the lower casing, and the first sub-shielding strip 511 extends in the longitudinal and transverse directions of the optical port 410 of the lower casing;
  • the second accommodating groove The 413 extends in the longitudinal and lateral directions of the optical port portion 410 of the lower casing, and the second segment shielding strips 512 extend in the longitudinal and lateral directions of the optical port portion 410 of the lower casing.
  • one end of the first accommodating groove 412 communicates with the second fixing groove 411 , and extends from the edge of the second fixing groove 411 to the edge of the optical port 410 of the casing, and one end of the second accommodating groove 413 communicates with The second fixing groove 411 extends from the edge of the second fixing groove 411 to the edge of the optical port 410 of the lower casing.
  • the top end of the optical port portion 410 of the lower casing includes a first supporting surface 414 and a second supporting surface 415
  • the first shielding strip 510 includes a third section of sub-shielding strips 513 and a fourth section of sub-shielding strips 514 .
  • the third sub-shielding strip 513 is disposed on the first supporting surface 414
  • the fourth sub-shielding strip 514 is disposed on the second supporting surface 415 .
  • the first support surface 414 and the second support surface 415 are disposed on the inner edge of the optical port portion 410 of the lower casing, that is, the first support surface 414 and the second support surface 415 are disposed on the second fixed surface
  • One end of the first supporting surface 414 is connected to the first accommodating groove 412 , one end of the second supporting surface 415 is connected to the second accommodating groove 413 , and then the third sub-shielding strip 513 is connected to the first sub-shielding strip 511 , and the fourth sub-shielding strip 514 Connect the second sub-shield strip 512 .
  • one end of the first support surface 414 is connected to the bottom surface of the first accommodating groove 412, and one end of the second supporting surface 415 is connected to the bottom surface of the second accommodating groove 413, so as to facilitate the unification of the first segment of the shielding strips 511 and the heights of the third sub-shielding strip 513 and the second sub-shielding strip 512 and the fourth sub-shielding strip 514 facilitate the assembly and production of the shielding strips and the assembly of the upper casing 300 and the lower casing 400 .
  • the first accommodating groove 412 includes a first straight section 121 , a first transition section 122 and a second straight section 123 that are communicated in sequence, and the first section
  • the shielding bar 511 extends along the extending trend of each of the first straight section 121 , the first transition section 122 and the second straight section 123 , thereby realizing that the first sub-shielding bar 511 extends in multiple directions
  • the first supporting surface 414 includes The third straight section 141 and the fourth straight section 142 are connected in sequence, and the third sub-shielding strip 513 extends along the extending trend of the third straight section 141 and the fourth straight section 142, thereby realizing the third sub-shielding strip. 513 extends in multiple directions.
  • the first straight section 121 , the first transition section 122 , the second straight section 123 , the third straight section 141 and the fourth straight section 142 form a figure including a plurality of extending directions on the top of the optical port 410 of the lower casing
  • the first section of sub-shielding strips 511 and the third section of sub-shielding strips 513 form a pattern structure including multiple extending directions, so as to realize electromagnetic shielding in multiple directions.
  • the extending direction of the first straight section 121 is perpendicular to the groove edge of the first fixing groove 411
  • the extending direction of the second straight section 123 is parallel to the length direction of the optical module
  • the first transition section 122 connects the first straight section 121 and the second straight section 123
  • the first transition section 122 is used to realize the extension of the first accommodating groove 412 from the extending direction of the first straight section 121 to the extending direction of the second straight section 123. transition.
  • the first section of the sub-shielding strip 511 can be realized to include multiple extending directions, and the arrangement of the first section of the sub-shielding strip 511 can be facilitated.
  • the extending direction of the third straight section 141 is parallel to the extending direction of the first fixing groove 411
  • the extending direction of the fourth straight section 142 is perpendicular to the extending direction of the first fixing groove 411 .
  • the second accommodating groove 413 includes a fifth straight section 131 , a second transition section 132 and a sixth straight section 133 that are communicated in sequence, and the second section is sub-shielded
  • the strips 512 extend along the extending trends of the fifth straight section 131, the second transition section 132 and the sixth straight section 133, so as to realize the extension of the second sub-shielding strips 512 in multiple directions;
  • the seventh straight section 151 and the eighth straight section 152, the fourth section of the sub-shielding strip 514 extends along the extending trend of the seventh straight section 151 and the eighth straight section 152, thereby realizing the fourth section of the sub-shielding strip 514 to extend Extends in multiple directions.
  • the fifth straight section 131, the second transition section 132, the sixth straight section 133, the seventh straight section 151 and the eighth straight section 152 form a figure including a plurality of extending directions on the top of the optical port 410 of the lower casing
  • the second sub-shielding strip 512 and the fourth sub-shielding strip 514 form a pattern structure including multiple extending directions, so as to realize electromagnetic shielding in multiple directions.
  • the setting shapes of the fifth straight section 131 , the second transition section 132 , the sixth straight section 133 , the seventh straight section 151 and the eighth straight section 152 may refer to the first straight section 121 and the first transition section 122 , the second straight section 123, the third straight section 141 and the fourth straight section 142.
  • the fifth straight section 131 , the second transition section 132 , the sixth straight section 133 , the seventh straight section 151 , and the eighth straight section 152 and the first straight section 121 , the first transition section 122 , the second straight section 123 , the third straight section 141 and the fourth straight section 142 are symmetrically arranged along the central axis of the optical module.
  • the top end of the optical port portion 410 of the lower casing further includes a first top surface 416 and a second top surface 417 .
  • a first stepped surface 418 is formed between the first top surface 416 and the first supporting surface 414 , and the first stepped surface 418 is used to assist the positioning of the third sub-shielding strip 513 ; between the second top surface 417 and the second supporting surface 415
  • a second stepped surface 419 is formed, and the second stepped surface 419 is used to assist the positioning of the fourth sub-shielding strip 514 .
  • screw holes are respectively provided on the first top surface 416 and the second top surface 417, and the fixed connection between the lower casing 400 and the upper casing 300 is realized through the screw holes, which helps In order to make full use of the space of the optical port 410 of the lower casing.
  • the optical port portion 410 of the lower casing is also provided with positioning holes or positioning posts; for example, the optical port portion 410 of the lower casing is provided with positioning posts, the corresponding optical port portion of the upper housing is provided with positioning holes, and the positioning posts are connected with the positioning posts.
  • the holes are matched to realize the assembly and positioning of the upper casing 300 and the lower casing 400 .
  • the top end of the third side plate 422 is provided with a third supporting surface 221
  • the second shielding bar 520 is provided on the third supporting surface 221
  • the second shielding bar 520 is connected to the first shielding bar 510 .
  • one end of the second shielding bar 520 is connected to the first sub-shielding bar 511 .
  • one end of the third support surface 221 is connected to the bottom surface of the first accommodating groove 412 . This facilitates unifying the heights of the first shielding bar 510 and the second shielding bar 520 , and facilitates the assembly and production of the shielding bars and the assembly of the upper casing 300 and the lower casing 400 .
  • the top end of the third side plate 422 is further provided with a third top surface 222 , and a third stepped surface 223 is formed between the third top surface 222 and the third supporting surface 221 .
  • the third stepped surface 223 is used to assist the positioning of the second shielding strip 520 .
  • the top end of the fourth side plate 423 is provided with a fourth supporting surface 231
  • the third shielding bar 530 is provided on the fourth supporting surface 231
  • the third shielding bar 530 is connected to the first shielding bar 510 .
  • one end of the third shielding bar 530 is connected to the second sub-shielding bar 512 .
  • one end of the fourth supporting surface 231 is connected to the bottom surface of the second accommodating groove 413 . This facilitates unifying the heights of the first shielding bar 510 and the third shielding bar 530 , and facilitates the assembly and production of the shielding bars and the assembly of the upper casing 300 and the lower casing 400 .
  • the top end of the fourth side plate 423 is further provided with a fourth top surface 232 , a fourth stepped surface 233 is formed between the fourth top surface 232 and the fourth supporting surface 231 , and the fourth stepped surface 233 is used to assist the first Positioning of the three shielding strips 530 .
  • the outer wall of the third side plate 422 and the outer wall of the fourth side plate 423 are respectively matched and connected to the unlocking member 201 .
  • a plurality of shielding protrusions are respectively provided on the outer wall of the third side plate 422 and the outer wall of the fourth side plate 423.
  • the sealing between 201 and the lower casing 400 prevents the electromagnetic radiation in the upper computer from being transmitted to the shielding protrusion, and then the electromagnetic shielding effect of the upper computer is improved through the shielding protrusion.
  • the shielding protrusions can be formed by the protruding structures on the outer walls of the third side plate 422 and the fourth side plate 423 , or by pasting conductive cloth and wave absorbing materials on the outer walls of the third side plate 422 and the fourth side plate 423 .
  • first shielding protrusions 234 are provided on the outer wall of the fourth side plate 423.
  • the electromagnetic radiation in the host computer propagates along the gap between the unlocking member 201 and the outer wall of the fourth side plate 423, it is blocked by the first shielding protrusions 234.
  • a shielding protrusion 234 is blocked so as to improve the electromagnetic shielding effect of the host computer.
  • Shielding protrusions corresponding to the first shielding protrusions 234 may be provided on the outer wall of the third side plate 422 .
  • FIG. 8 is a schematic structural diagram of an upper casing and an optical fiber interface according to an embodiment of the present disclosure
  • FIG. 9 is a schematic structural diagram of an upper casing according to an embodiment of the present disclosure.
  • the upper casing 300 includes an upper casing optical port 310 and an upper casing cavity 320 .
  • the upper casing optical port 310 cooperates with the lower casing cavity 420 to fix the optical fiber connector 202 .
  • the body cavity portion 320 covers the lower housing cavity portion 420 for accommodating devices such as the circuit board 206 .
  • the optical port portion 310 of the upper casing is provided with a first fixing groove 311 , and the optical fiber connector 202 is clamped in the first fixing groove 311 .
  • the top end of the optical opening portion 310 of the upper casing presses the first shielding strip 510 provided on the optical opening portion 410 of the lower casing, which is helpful for the purpose of the present disclosure.
  • the electromagnetic shielding effect of the first shielding strip 510 is guaranteed.
  • the cavity part 320 of the upper casing includes a cover plate 321 and a first side plate 322 and a second side plate 323 located on both sides of the cover plate 321 .
  • the first side plate 322 is fitted to connect to the third side plate 422
  • the second side plate 323 is fitted to the fourth side plate 423
  • the top end of the first side plate 322 Pressing the second shielding bar 520 provided on the third side plate 422, and the top end of the second side plate 323 pressing the third shielding bar 530 provided on the fourth side plate 423, is helpful in a certain aspect of the present disclosure.
  • the electromagnetic shielding effect of the second shielding strip 520 and the third shielding strip 530 is guaranteed.
  • the outer wall of the first side plate 322 and the outer wall of the second side plate 323 are respectively matched and connected to the unlocking member 201 .
  • Shielding protrusions are respectively provided on the outer wall of the first side plate 322 and the outer wall of the second side plate 323.
  • the unlocking member 201 When the unlocking member 201 is assembled to the outer wall of the first side plate 322 and the outer wall of the second side plate 323, the unlocking member 201 covers The shielding protrusions on the outer wall of the first side plate 322 and the outer wall of the second side plate 323, and then when the optical module is inserted into the upper computer for use, the sealing between the unlocking part 201 and the upper casing 300 is realized by the shielding protrusions, The electromagnetic radiation in the host computer is blocked when it is transmitted to the shielding protrusion, and the electromagnetic shielding effect of the host computer is improved in an embodiment of the present disclosure through the shielding protrusion.
  • the shielding protrusions on the outer wall of the first side plate 322 and the outer wall of the second side plate 323 may be formed by the convex structures on the outer walls of the first side plate 322 and the second side plate 323, or may be the first side plate 322 and the second side plate 323.
  • the outer walls of the two side plates 323 are formed by pasting conductive cloth and wave absorbing materials.
  • the outer wall of the first side plate 322 is provided with a plurality of second shielding protrusions 324.
  • the electromagnetic radiation in the host computer propagates along the gap between the unlocking member 201 and the outer wall of the first side plate 322, it is blocked by the first shielding protrusions 324.
  • the shielding protrusion 234 is blocked so as to improve the electromagnetic shielding effect of the host computer.
  • Shielding protrusions corresponding to the second shielding protrusions 324 may be provided on the outer wall of the second side plate 323 .
  • FIG. 10 is a cross-sectional view of an optical module provided by the implementation of the present disclosure.
  • the cross-section in FIG. 10 is located at the optical port of the optical module.
  • FIG. 10 shows the assembly structure of the upper casing 300 and the lower casing 400 at the optical port.
  • the second sub-shielding strip 512 is disposed in the second receiving groove 413
  • the fourth sub-shielding strip 514 is disposed on the second supporting surface 415
  • the upper casing 300 cooperates with the lower casing 400 to press the second sub-section
  • the shielding strip 512 and the fourth sub-shielding strip 514 realize electromagnetic shielding between the upper casing 300 and the lower casing 400 at the optical port.
  • FIG. 11 is a second cross-sectional view of an optical module provided by the implementation of the present disclosure.
  • the cross-section in FIG. 11 is located at the inner cavity of the optical module, and
  • FIG. 10 shows the assembly structure of the upper casing 300 and the lower casing 400 at the inner cavity.
  • a third shielding bar 530 is disposed on the fourth side plate 423 , and the upper casing 300 cooperates with the lower casing 400 to press the third shielding bar 530 .
  • a second shielding strip 520 is provided on the third side plate 422 , and the upper casing 300 and the lower casing 400 cooperate to press the second shielding strip 520 , thereby realizing the connection between the upper casing 300 and the lower casing 400 at the inner cavity. Electromagnetic shielding.
  • the shielding bar may be arranged on the upper casing 300 , and the specific arrangement form of the shielding bar may refer to the setting of the shielding bar on the lower casing 400 .

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Abstract

一种光模块（200），包括：上壳体（300），包括上壳体光口部（310），所述上壳体光口部（310）的顶端设置有第一固定槽（311）；下壳体（400），包括下壳体光口部（410），所述下壳体光口部（410）配合连接所述上壳体光口部（310），所述下壳体光口部（410）的顶端设置有第二固定槽（411）；光纤接头（202），一侧卡设在所述第一固定槽（311）内，另一侧卡设在所述第二固定槽（411）内；其中，所述上壳体光口部（310）和所述下壳体光口部（410）配合连接处设置第一屏蔽条（510），且所述第一屏蔽条（510）向多个方向延伸。该光模块（200）实现了光模块（200）光口处多个方向上的电磁屏蔽，提高光模块（200）的电磁屏蔽效果。

Description

一种光模块
本公开要求在2020年08月28日提交中国专利局、申请号为202021839839.1、专利名称为“一种光模块”的优先权，其全部内容通过引用结合在本公开中。
技术领域
本公开涉及光通信技术领域，尤其涉及一种光模块。
背景技术
在云计算、移动互联网、视频等新型业务和应用模式，均会用到光通信技术。光模块在光通信技术领域中实现光电转换的功能，是光通信设备中的关键器件之一。为实现光模块的光电以及电光转换功能，光模块中包括许多电子元器件以及光学元器件。
而在光模块的电子元器件工作过程中，电子元器件会产生电磁波。电磁波辐射出光模块将会对其他电子仪器设备产生EMI(Electromagnetic Interference，电磁干扰)。EMI可能会干扰电子仪器设备的正常工作，干扰信号的传递与接收，造成信息失误和控制失灵等。因此，为避免光模块EMI危害其他设备或组件，需要从光模块结构上实现良好的电磁屏蔽效果，避免其中电子元器件产生的电磁波衍射出光模块，对光模块外部其它设备产生电磁干扰。
发明内容
本公开提供的一种光模块，包括：上壳体，包括上壳体光口部，所述上壳体光口部的顶端设置有第一固定槽；下壳体，包括下壳体光口部，所述下壳体光口部配合连接所述上壳体光口部，所述下壳体光口部的顶端设置有第二固定槽；光纤接头，一侧卡设在所述第一固定槽内，另一侧卡设在所述第二固定槽内；其中，所述上壳体光口部和所述下壳体光口部配合连接处设置第一屏蔽条，且所述第一屏蔽条向多个方向延伸。
附图说明
为了更清楚地说明本公开实施例的技术方案，下面将对实施例或已有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为光通信终端连接关系示意图；
图2为光网络单元结构示意图；
图3为本公开实施例提供的一种光模块结构示意图；
图4为本公开实施例提供光模块分解结构示意图；
图5为本公开实施例提供的一种下壳体与光纤接口配合的结构示意图；
图6为本公开实施例提供的一种下壳体的结构示意图；
图7为本公开实施例提供的一种下壳体上设置屏蔽条的结构示意图；
图8为本公开实施例提供的一种上壳体与光纤接口配合的结构示意图；
图9为本公开实施例提供的一种上壳体的结构示意图；
图10为本公开实施提供的一种光模块的剖视图一；
图11为本公开实施提供的一种光模块的剖视图二。
具体实施方式
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
本公开使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本公开。在本公开和所附权利要求书中所使用的单数形式的“一种”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。还应当理解，本文中使用的术语“和/或”是指并包含一个或多个相关联的列出项目的任何或所有可能组合。
下面结合附图，对本公开的一些实施方式作详细说明，在不冲突的情况下，下述的实施例及实施例中的特征可以相互组合。
光纤通信的核心环节之一是光、电信号的相互转换。光纤通信使用携带信息的光信号在光纤/光波导等信息传输设备中传输，利用光在光纤/光波导中的无源传输特性可以实现低成本、低损耗的信息传输；而计算机等信息处理设备使用的是电信号，为了在光纤/光波导等信息传输设备与计算机等信息处理设备之间建立信息连接，就需要实现电信号与光信号的相互转换。
光模块在光纤通信技术领域中实现上述光、电信号的相互转换功能，光信号与电信号的相互转换是光模块的核心功能。光模块通过其内部电路板上的金手指实现与外部上位机之间的电连接，主要的电连接包括供电、I2C信号、数据信号以及接地等；光模块通过光接口实现与外部光纤的光连接，外部光纤的连接方式有多种，衍生出多种光纤连接器类型；在电接口处使用金手指实现电连接，已经成为光模块行业在的主流连接方式，以此为基础，金手指上引脚的定义形成了多种行业协议/规范；采用光接口与光纤连接器实现的光连接方式已经成为光模块行业的主流连接方式，以此为基础，光纤连接器也形成了多种行业标准，如LC接口、SC接口、MPO接口等，光模块的光接口也针对光纤连接器做了适配性的结构设计，在光接口处设置的光纤适配器因此具有多种类型。
图1为光通信终端连接关系示意图。如图1所示，光通信终端的连接主要包括光网络终端100、光模块200、光纤101及网线103之间的相互连接；
光纤101的一端连接远端服务器，网线103的一端连接本地信息处理设备，本地信息处理设备与远端服务器的连接由光纤101与网线103的连接完成；而光纤101与网线103之间的连接由具有光模块200的光网络终端100完成。
光模块200的光接口对外接入光纤101，与光纤101建立双向的光信号连接；光模块 200的电接口对外接入光网络终端100中，与光网络终端100建立双向的电信号连接；在光模块内部实现光信号与电信号的双向相互转换，从而实现在光纤与光网络终端之间建立信息连接；在本公开的某一实施例中，来自光纤101的光信号由光模块转换为电信号后输入至光网络终端100中，来自光网络终端100的电信号由光模块转换为光信号输入至光纤101中。
光网络终端具有光模块接口102，用于接入光模块200，与光模块200建立双向的电信号连接；光网络终端具有网线接口104，用于接入网线103，与网线103建立双向的电信号连接(一般为以太网协议的电信号，与光模块使用的电信号属于不同的协议/类型)；光模块200与网线103之间通过光网络终端100建立连接，在本公开的某一实施例中，光网络终端将来自光模块的信号传递给网线，将来自网线的信号传递给光模块，光网络终端作为光模块的上位机监控光模块的工作。光网络终端是光模块的上位机，向光模块提供数据信号，并接收来自光模块的数据信号，至此，远端服务器通过光纤、光模块、光网络终端及网线，与本地信息处理设备之间建立双向的信号传递通道。
常见的本地信息处理设备包括路由器、家用交换机、电子计算机等；常见的光网络终端包括光网络单元ONU、光线路终端OLT、数据中心服务器、数据中心交换机等。
图2为光网络终端结构示意图。如图2所示，在光网络终端100中具有电路板105，在电路板105的表面设置笼子106；在笼子106内部设置有电连接器，用于接入光模块的电接口(如金手指等)；在笼子106上设置有散热器107，散热器107具有增大散热面积的翅片等凸起部。
光模块200插入光网络终端中，光模块的电接口插入笼子106内部的电连接器，光模块的光接口与光纤101连接。
笼子106位于电路板上，将电路板上的电连接器包裹在笼子中，从而使笼子内部设置有电连接器；光模块插入笼子中，由笼子固定光模块，光模块产生的热量传导给笼子106，然后通过笼子上的散热器107进行扩散。
图3为本公开实施例提供的一种光模块结构示意图，图4为本公开实施例提供光模块分解结构示意图。如图3、图4所示，本公开实施例提供的光模块200包括上壳体300、下壳体400、解锁部件201、电路板206、光收发次模块205、光纤接头202和光纤207。
上壳体300盖合在下壳体400上，以形成具有两个开口的包裹腔体；包裹腔体的外轮廓一般呈现方形体，在本公开的某一实施例中，下壳体包括主板以及位于主板两侧、与主板垂直设置的两个侧板；上壳体包括盖板，盖板盖合在上壳体的两个侧板上，以形成包裹腔体；上壳体还可以包括位于盖板两侧、与盖板垂直设置的两个侧壁，由两个侧壁与两个侧板结合，以实现上壳体盖合在下壳体上。
两个开口可以是壳体在同一方向上的两端的开口203和204，也可以是壳体在不同方向上两处开口。前述同一方向指的是开口203和2044的连线所在的方向，该方向与光模块200的长度方向一致；前述不同方向指的是开口204和205的连线所在的方向与光模块200的长度方向不一致，例如开口203位于光模块200的端面，而开口204则位于光模块200的侧部。其中一个开口为电口203，电路板的金手指从电口203伸出，插入光网络终 端等上位机中；另一个开口为光口204，用于外部光纤接入；电路板300、光收发次模块205等光电器件位于上、下壳体形成的包裹腔体中。
采用上壳体300、下壳体400结合的装配方式，便于将光收发次模块205和光纤210等器件安装到壳体中，由上壳体300、下壳体400形成光模块最外层的封装保护壳体；上壳体300及下壳体400一般采用金属材料，利于实现电磁屏蔽以及散热；一般不会将光模块的壳体做成一体部件，这样在装配电路板等器件时，定位部件、散热以及电磁屏蔽部件无法安装，也不利于生产自动化。
解锁部件201位于包裹腔体/下壳体400的外壁，用于实现光模块与上位机之间的固定连接，或解除光模块与上位机之间的固定连接。
解锁部件201具有与上位机笼子匹配的卡合部件；拉动解锁部件的末端可以在使解锁部件在外壁的表面相对移动；光模块插入上位机的笼子里，由解锁部件的卡合部件将光模块固定在上位机的笼子里；通过拉动解锁部件，解锁部件的卡合部件随之移动，进而改变卡合部件与上位机的连接关系，以解除光模块与上位机的卡合关系，从而可以将光模块从上位机的笼子里抽出。
电路板206上设置有电路走线、电子元件(如电容、电阻、三极管、MOS管)及芯片(如MCU、时钟数据恢复CDR、电源管理芯片、数据处理芯片DSP)等。
电路板206通过电路走线将光模块中的用电器件按照电路设计连接在一起，以实现供电、电信号传输及接地等电功能。
电路板一般为硬性电路板，硬性电路板由于其相对坚硬的材质，还可以实现承载作用，如硬性电路板可以平稳的承载芯片；当光收发器件位于电路板上时，硬性电路板也可以提供平稳的承载；硬性电路板还可以插入上位机笼子中的电连接器中，在本公开的某一实施例中，在硬性电路板的一侧末端表面形成金属引脚/金手指，用于与电连接器连接；这些都是柔性电路板不便于实现的。
部分光模块中也会使用柔性电路板，作为硬性电路板的补充；柔性电路板一般与硬性电路板配合使用，如硬性电路板与光收发器件之间可以采用柔性电路板连接。
光收发次模块205可采用TO(同轴)封装或COB(板上芯片)封装等结构形式。图4中的光收发次模块205为COB封装结构形式。光收发次模块205通过光纤207连接光纤接头202，然后通过光纤接头202连接外部光线。
在本公开实施例中，为方便光纤接头202的固定，上壳体300的上壳体光口部设置第一固定槽，下壳体400的下壳体光口部设置第二固定槽，光纤接头202的一侧与第一固定槽配合、另一侧与第二固定槽配合。当将上壳体光口部与下壳体光口部固定，光纤接头202将通过固定在第一固定槽和第二固定槽固定。第一固定槽和第二固定槽各处的口径大小可直接取决于光纤接头202对应出的口径大小。
由于光模块光口处结构的多变性，光模块光口处的电磁屏蔽效果比较薄弱，在本公开的某一实施例中为提升光模块的电磁屏蔽效果，在上壳体光口部与下壳体光口部连接处设置第一屏蔽条，第一屏蔽条用于光模块光口处的电磁屏蔽。在本公开实施例中，第一屏蔽条包括若干段子屏蔽条。若干段子屏蔽条实现第一屏蔽条多个方向的延伸，进而实现光模 块光口处第一屏蔽条在纵向、横向等方向的电磁屏蔽，保证第一屏蔽条在光模块光口处的屏蔽效果。
在本公开的某一实施例中，本公开实施例提供的第一屏蔽条可通过点胶机点胶形成，胶可为导电胶。在本公开实施例提供的光模块的生成制备过程中，可通过点胶机点胶在下壳体400，或通过点胶机点胶在上壳体300上。下面以通过点胶机点胶在下壳体400为例对本公开实施例进行详细说明。
图5为本公开实施例提供的一种下壳体与光纤接口配合的结构示意图。如图5所示，下壳体400包括下壳体光口部410和下壳体腔体部420，下壳体光口部410用于固定光纤接头202，下壳体腔体部420用于容纳电路板206等器件。
下壳体光口部410上设置第二固定槽411，光纤接头202卡设在第二固定槽411内。下壳体光口部410上设置第一屏蔽条510，第一屏蔽条510的延伸方向不唯一。如图5所示，第一屏蔽条510包括若干纵向、横向以及斜向等向多个方向延伸的子屏蔽条。第一屏蔽条510分布于第二固定槽411的两侧。
在本公开的某一实施例中，在申请实施例中，下壳体腔体部420包括主板421以及位于主板421两侧的第三侧板422和第四侧板423。第三侧板422的顶端设置第二屏蔽条520，第四侧板423的顶端设置第三屏蔽条530，第二屏蔽条520和第三屏蔽条530用于光模块腔体部位的电磁屏蔽。第二屏蔽条520和第三屏蔽条530也可通过点胶机点胶形成。
图6为本公开实施例提供的一种下壳体的结构示意图，图7为本公开实施例提供的一种下壳体上设置屏蔽条的结构示意图。如图6和7所示，下壳体光口部410上包括第一容纳槽412和第二容纳槽413，第一屏蔽条510包括第一段子屏蔽条511和第二段子屏蔽条512。第一段子屏蔽条511设置在第一容纳槽412内，第二段子屏蔽条512设置在第二容纳槽413内。第一容纳槽412在下壳体光口部410的纵向、横向等方向上延伸，进而第一段子屏蔽条511在下壳体光口部410的纵向、横向等方向上延伸设置；第二容纳槽413在下壳体光口部410的纵向、横向等方向上延伸，进而第二段子屏蔽条512在下壳体光口部410的纵向、横向等方向上延伸设置。
在本公开实施例中，第一容纳槽412的一端连通第二固定槽411，自第二固定槽411的槽边向下壳体光口部410的边缘延伸，第二容纳槽413的一端连通第二固定槽411，自第二固定槽411的槽边向下壳体光口部410的边缘延伸。
如图6和7所示，下壳体光口部410的顶端包括第一支撑面414和第二支撑面415，第一屏蔽条510包括第三段子屏蔽条513和第四段子屏蔽条514。第三段子屏蔽条513设置在第一支撑面414上，第四段子屏蔽条514设置在第二支撑面415上。在本公开的某一实施例中，第一支撑面414和第二支撑面415设置在下壳体光口部410的内边缘，即第一支撑面414和第二支撑面415设置在第二固定槽411或下壳体光口部410与下壳体腔体部420内腔连接处的边缘。第一支撑面414的一端连接第一容纳槽412，第二支撑面415的一端连接第二容纳槽413，进而第三段子屏蔽条513连接第一段子屏蔽条511，第四段子屏蔽条514连接第二段子屏蔽条512。在本公开的某一实施例中，第一支撑面414的一端连接第一容纳槽412的底面，第二支撑面415的一端连接第二容纳槽413的底面，便于统一 第一段子屏蔽条511和第三段子屏蔽条513的高度以及第二段子屏蔽条512和第四段子屏蔽条514，进而便于屏蔽条的装配生产以及上壳体300和下壳体400的装配。
在本公开的某一实施例中，在本公开实施例中，第一容纳槽412包括依次连通的第一平直段121、第一过渡段122和第二平直段123，第一段子屏蔽条511沿第一平直段121、第一过渡段122和第二平直段123各个的延伸走势延伸，进而实现第一段子屏蔽条511向多个方向延伸；第一支撑面414包括依次连通的第三平直段141和第四平直段142，第三段子屏蔽条513沿第三平直段141和第四平直段142各个的延伸走势延伸，进而实现第三段子屏蔽条513向多个方向延伸。第一平直段121、第一过渡段122、第二平直段123、第三平直段141和第四平直段142在下壳体光口部410顶部形成一个包括多个延伸方向的图形结构，进而使第一段子屏蔽条511和第三段子屏蔽条513形成一个包括多个延伸方向的图形结构，实现其设置出多个方向上的电磁屏蔽。
在本公开的某一实施例中，第一平直段121的延伸方向垂直于第一固定槽411的槽边，第二平直段123的延伸方向平行于光模块长度方向，第一过渡段122连接第一平直段121和第二平直段123，第一过渡段122用于实现第一容纳槽412从第一平直段121的延伸方向到第二平直段123的延伸方向的过渡。如此既能实现第一段子屏蔽条511包括多个延伸方向，又能方便第一段子屏蔽条511的设置。
在本公开的某一实施例中，第三平直段141的延伸方向平行于第一固定槽411的延伸方向，第四平直段142的延伸方向垂直于第一固定槽411的延伸方向，方便第三段子屏蔽条513的设置，同时在本公开的某一实施例中增加第一固定槽411的延伸方向和垂直于第一固定槽411的延伸方向上的电磁屏蔽效果。
在本公开的某一实施例中，在本公开实施例中，第二容纳槽413包括依次连通的第五平直段131、第二过渡段132和第六平直段133，第二段子屏蔽条512沿第五平直段131、第二过渡段132和第六平直段133各个的延伸走势延伸，进而实现第二段子屏蔽条512向多个方向延伸；第二支撑面415包括依次连通的第七平直段151和第八平直段152，第四段子屏蔽条514沿第七平直段151和第八平直段152各个的延伸走势延伸，进而实现第四段子屏蔽条514向多个方向延伸。第五平直段131、第二过渡段132、第六平直段133、第七平直段151和第八平直段152在下壳体光口部410顶部形成一个包括多个延伸方向的图形结构，进而使第二段子屏蔽条512和第四段子屏蔽条514形成一个包括多个延伸方向的图形结构，实现其设置出多个方向上的电磁屏蔽。
第五平直段131、第二过渡段132、第六平直段133、第七平直段151和第八平直段152的设置形状可参考第一平直段121、第一过渡段122、第二平直段123、第三平直段141和第四平直段142形状。在本公开的某一实施例中，第五平直段131、第二过渡段132、第六平直段133、第七平直段151和第八平直段152与第一平直段121、第一过渡段122、第二平直段123、第三平直段141和第四平直段142沿光模块的中轴对称设置。
在本公开实施例中，下壳体光口部410的顶端还包括第一顶面416和第二顶面417。第一顶面416与第一支撑面414之间形成第一台阶面418，第一台阶面418用于辅助第三段子屏蔽条513的定位；第二顶面417与第二支撑面415之间形成第二台阶面419，第二 台阶面419用于辅助第四段子屏蔽条514的定位。在本公开的某一实施例中，在第一顶面416和第二顶面417上分别设置螺钉孔，通过该螺钉孔实现下壳体400与上壳体300之间的固定连接，有助于充分利用下壳体光口部410的空间。相应的，下壳体光口部410上还设置有定位孔或定位柱；如，下壳体光口部410上设置定位柱，相应的上壳体光口部设置定位孔，定位柱与定位孔配合用于实现上壳体300与下壳体400的装配定位。
在本公开一些实施例中，第三侧板422的顶端设置有第三支撑面221，第二屏蔽条520设置在第三支撑面221上，第二屏蔽条520连接第一屏蔽条510。在本公开的某一实施例中，第二屏蔽条520的一端连接第一段子屏蔽条511。在本公开的某一实施例中，第三支撑面221的一端连接第一容纳槽412的底面。如此便于统一第一屏蔽条510和第二屏蔽条520的高度，便于屏蔽条的装配生产以及上壳体300和下壳体400的装配。
在本公开的某一实施例中，第三侧板422的顶端还置有第三顶面222，第三顶面222与第三支撑面221之间形成第三台阶面223，第三台阶面223用于辅助第二屏蔽条520的定位。
在本公开一些实施例中，第四侧板423的顶端设置有第四支撑面231，第三屏蔽条530设置在第四支撑面231，第三屏蔽条530连接第一屏蔽条510。在本公开的某一实施例中，第三屏蔽条530的一端连接第二段子屏蔽条512。在本公开的某一实施例中，第四支撑面231的一端连接第二容纳槽413的底面。如此便于统一第一屏蔽条510和第三屏蔽条530的高度，便于屏蔽条的装配生产以及上壳体300和下壳体400的装配。
在本公开实施例中，第四侧板423的顶端还设第四顶面232，第四顶面232与第四支撑面231间形成第四台阶面233，第四台阶面233用于辅助第三屏蔽条530的定位。
在本公开实施例中，第三侧板422的外壁和第四侧板423的外壁分别配合连接解锁部件201。在本公开的某一实施例中，第三侧板422的外壁和第四侧板423的外壁上分别设置若干屏蔽凸起，当解锁部件201装配至第三侧板422的外壁和第四侧板423的外壁上时，解锁部件201覆盖第三侧板422的外壁和第四侧板423的外壁上的屏蔽凸起，进而在光模块插入上位机使用时，通过该屏蔽凸起实现解锁部件201与下壳体400之间的密封，上位机内的电磁辐射传输至屏蔽凸起时被阻挡，进而通过该屏蔽凸起达到提高上位机电磁屏蔽的效果。屏蔽凸起可由第三侧板422和第四侧板423的外壁上的外凸结构形成，也可为第三侧板422和第四侧板423的外壁上粘贴导电布、吸波材料形成。
如图7所示，第四侧板423的外壁上设置若干第一屏蔽凸起234，当上位机内的电磁辐射沿解锁部件201与第四侧板423外壁之间的间隙传播时，被第一屏蔽凸起234阻挡以达到提高上位机电磁屏蔽的效果的作用。第三侧板422的外壁上可与第一屏蔽凸起234相应的设置屏蔽凸起。
图8为本公开实施例提供的一种上壳体与光纤接口配合的结构示意图，图9为本公开实施例提供的一种上壳体的结构示意图。如图8和9所示，上壳体300包括上壳体光口部310和上壳体腔体部320，上壳体光口部310配合下壳体腔体部420实现固定光纤接头202，上壳体腔体部320盖合下壳体腔体部420用于容纳电路板206等器件。上壳体光口部310上设置第一固定槽311，光纤接头202卡设在第一固定槽311内。同时当上壳体300与下 壳体400盖合固定装配时，上壳体光口部310的顶端挤压设置在下壳体光口部410的第一屏蔽条510，有助于在本公开的某一实施例中保证第一屏蔽条510的电磁屏蔽效果。
如图8和9所示，上壳体腔体部320包括盖板321以及位于盖板321两侧的第一侧板322和第二侧板323。当上壳体300与下壳体400盖合固定装配时，第一侧板322配合连接第三侧板422，第二侧板323配合连接第四侧板423，进而第一侧板322的顶端挤压设置在第三侧板422上的第二屏蔽条520，第二侧板323的顶端挤压设置在第四侧板423上的第三屏蔽条530，有助于在本公开的某一实施例中保证第二屏蔽条520和第三屏蔽条530的电磁屏蔽效果。
在本公开实施例中，第一侧板322的外壁和第二侧板323的外壁分别配合连接解锁部件201。第一侧板322的外壁和第二侧板323的外壁上分别设置屏蔽凸起，当解锁部件201装配至第一侧板322的外壁和第二侧板323的外壁上时，解锁部件201覆盖第一侧板322的外壁和第二侧板323的外壁上的屏蔽凸起，进而在光模块插入上位机使用时，通过该屏蔽凸起实现解锁部件201与上壳体300之间的密封，上位机内的电磁辐射传输至屏蔽凸起时被阻挡，进而通过该屏蔽凸起在本公开的某一实施例中提高上位机电磁屏蔽的效果。第一侧板322的外壁和第二侧板323的外壁上的屏蔽凸起可由第一侧板322和第二侧板323的外壁上外凸结构形成，也可为第一侧板322和第二侧板323的外壁上粘贴导电布、吸波材料形成。
如图9所示，第一侧板322的外壁设置若干第二屏蔽凸起324，当上位机内的电磁辐射沿解锁部件201与第一侧板322外壁之间的间隙传播时，被第一屏蔽凸起234阻挡以达到提高上位机电磁屏蔽的效果的作用。第二侧板323的外壁上可与第二屏蔽凸起324相应的设置屏蔽凸起。
图10为本公开实施提供的一种光模块的剖视图一，图10中的剖面位于光模块的光口处，图10示出了上壳体300与下壳体400在光口处的装配结构。如图10所示，第二段子屏蔽条512设置在第二容纳槽413，第四段子屏蔽条514设置在第二支撑面415上，上壳体300与下壳体400配合挤压第二段子屏蔽条512和第四段子屏蔽条514，实现上壳体300与下壳体400在光口处的电磁屏蔽。
图11为本公开实施提供的一种光模块的剖视图二，图11中的剖面位于光模块的内腔处，图10示出了上壳体300与下壳体400在内腔处的装配结构。如图11所示，第四侧板423上设置第三屏蔽条530，上壳体300与下壳体400配合挤压第三屏蔽条530。同样的，第三侧板422上设置第二屏蔽条520，上壳体300与下壳体400配合挤压第二屏蔽条520，进而实现上壳体300与下壳体400在内腔处的电磁屏蔽。
在本公开一些实施例中，屏蔽条可设置在上壳体300上，屏蔽条的具体设置形式可参考屏蔽条在下壳体400设置。
最后应说明的是：以上实施例仅用以说明本公开的技术方案，而非对其限制；尽管参照前述实施例对本公开进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而 这些修改或者替换，并不使相应技术方案的本质脱离本公开各实施例技术方案的精神和范围。

Claims (10)

  1. 一种光模块，其特征在于，包括：
    上壳体，包括上壳体光口部，所述上壳体光口部的顶端设置有第一固定槽；
    下壳体，包括下壳体光口部，所述下壳体光口部配合连接所述上壳体光口部，所述下壳体光口部的顶端设置有第二固定槽；
    光纤接头，一侧卡设在所述第一固定槽内，另一侧卡设在所述第二固定槽内；
    其中，所述上壳体光口部和所述下壳体光口部配合连接处设置第一屏蔽条，且所述第一屏蔽条向多个方向延伸。
  2. 根据权利要求1所述光模块，其特征在于，所述第一屏蔽条包括第一段子屏蔽条和第二段子屏蔽条；
    所述下壳体光口部的顶端还设置有第一容纳槽和第二容纳槽，所述第一容纳槽的一端和所述第二容纳槽的一端分别连通所述第一固定槽；所述第一段子屏蔽条设置在所述第一容纳槽内，所述第二段子屏蔽条设置在所述第一容纳槽内，所述第一段子屏蔽条的一端和所述第二段子屏蔽条的一端分别接触所述光纤接头的侧面。
  3. 根据权利要求2所述光模块，其特征在于，所述第一屏蔽条还包括第三段子屏蔽条和第四段子屏蔽条；
    所述下壳体光口部的顶端还设置有第一支撑面和第二支撑面，所述第一支撑面和第二支撑面设置在所述下壳体光口部的内边缘，所述第一支撑面的一端连接所述第一容纳槽的底面，所述第二支撑面的一端连通所述第二容纳槽的底面；
    所述第三段子屏蔽条设置在所述第一支撑面上，所述第四段子屏蔽条设置在所述第二支撑面上，所述第三段子屏蔽条的一端连接所述第一段子屏蔽条、另一端接触所述光纤接头的端面，所述第四段子屏蔽条连接所述第二段子屏蔽条、另一端接所述光纤接头的端面。
  4. 根据权利要求1所述光模块，其特征在于，所述上壳体还包括上壳体腔体部，所述上壳体腔体部包括盖板以及位于所述盖板两侧的第一侧板和第二侧板；所述下壳体还包括下壳体腔体部，所述下壳体腔体部包括主板以及位于所述主板两侧的第三侧板和第四侧板；所述第一侧板配合连接所述第三侧板，所述第二侧板配合连接所述第四侧板；
    所述第三侧板的顶端包括第三支撑面，所述第四侧板的顶端包括第四支撑面；
    所述第三支撑面上设置第二屏蔽条，所述第四支撑面上设置第三屏蔽条，所述第二屏蔽条和所述第三屏蔽条分别连接所述第一屏蔽条。
  5. 根据权利要求3所述光模块，其特征在于，所述第一容纳槽包括依次连通的第一平直段、第一过渡段和第二平直段，所述第一平直段的延伸方向垂直于所述第一固定槽的槽边，所述第二平直段的末端连通所述第一支撑面；所述第一段子屏蔽条的延伸方向随所述第一容纳槽的延伸方向变化而变化。
  6. 根据权利要求3所述光模块，其特征在于，所述第一支撑面包括依次连通的第三平直段和第四平直段，所述第三平直段的延伸方向平行于所述第一固定槽的槽边，所述第四平直段的延伸方向垂直于所述第一固定槽的槽边；所述第三段子屏蔽条的延伸方向随所 述第一支撑面的延伸方向变化而变化。
  7. 根据权利要求3所述光模块，其特征在于，所述下壳体光口部的顶端包括第一顶面和第二顶面，所述第一顶面与所述第一支撑面之间形成第一台阶面，所述第二顶面与所述第二支撑面之间形成第二台阶面。
  8. 根据权利要求4所述光模块，其特征在于，所述第三侧板的顶端还包括第三顶面，所述第三顶面与所述第三支撑面形成第三台阶面；
    所述第四侧板的顶端还包括第四顶面，所述第四顶面与所述第四支撑面形成第四台阶面。
  9. 根据权利要求4所述光模块，其特征在于，所述第一侧板、第二侧板、第三侧板和第四侧板的外壁上分别设置屏蔽凸起，解锁部件覆盖所述屏蔽凸起。
  10. 根据权利要求7所述光模块，其特征在于，所述第一顶面和所述第二顶面上分别设置螺钉孔，所述螺钉孔用于螺钉连接所述上壳体；
    所述上壳体光口部还包括定位孔，所述下壳体光口部还包括定位柱，所述定位柱配合连接所述定位孔。
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Publication number Priority date Publication date Assignee Title
CN212647093U (zh) 2020-08-28 2021-03-02 青岛海信宽带多媒体技术有限公司 一种光模块
WO2023050748A1 (zh) * 2021-09-30 2023-04-06 青岛海信宽带多媒体技术有限公司 光模块
CN115327715B (zh) * 2022-08-29 2023-08-25 武汉联特科技股份有限公司 一种滤波光模块

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140286613A1 (en) * 2011-08-31 2014-09-25 Yamaichi Electronics Co., Ltd. Receptacle cage, receptacle assembly, and transceiver module assembly
CN105164560A (zh) * 2013-03-05 2015-12-16 菲尼萨公司 用于通信模块的闩锁机构
CN107479152A (zh) * 2017-09-30 2017-12-15 青岛海信宽带多媒体技术有限公司 一种光模块
CN107567593A (zh) * 2015-03-10 2018-01-09 菲尼萨公司 用于光学模块的闩锁和电磁干扰屏蔽机构
CN108061948A (zh) * 2017-12-28 2018-05-22 青岛海信宽带多媒体技术有限公司 一种光模块
CN211348749U (zh) * 2019-12-19 2020-08-25 广东瑞谷光网通信股份有限公司 光模块
CN212647093U (zh) * 2020-08-28 2021-03-02 青岛海信宽带多媒体技术有限公司 一种光模块

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115097582B (zh) * 2019-04-23 2023-06-20 苏州旭创科技有限公司 一种光模块

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140286613A1 (en) * 2011-08-31 2014-09-25 Yamaichi Electronics Co., Ltd. Receptacle cage, receptacle assembly, and transceiver module assembly
CN105164560A (zh) * 2013-03-05 2015-12-16 菲尼萨公司 用于通信模块的闩锁机构
CN107567593A (zh) * 2015-03-10 2018-01-09 菲尼萨公司 用于光学模块的闩锁和电磁干扰屏蔽机构
CN107479152A (zh) * 2017-09-30 2017-12-15 青岛海信宽带多媒体技术有限公司 一种光模块
CN108061948A (zh) * 2017-12-28 2018-05-22 青岛海信宽带多媒体技术有限公司 一种光模块
CN211348749U (zh) * 2019-12-19 2020-08-25 广东瑞谷光网通信股份有限公司 光模块
CN212647093U (zh) * 2020-08-28 2021-03-02 青岛海信宽带多媒体技术有限公司 一种光模块

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