WO2022199381A1 - 一种业务板及通信设备 - Google Patents

一种业务板及通信设备 Download PDF

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Publication number
WO2022199381A1
WO2022199381A1 PCT/CN2022/079878 CN2022079878W WO2022199381A1 WO 2022199381 A1 WO2022199381 A1 WO 2022199381A1 CN 2022079878 W CN2022079878 W CN 2022079878W WO 2022199381 A1 WO2022199381 A1 WO 2022199381A1
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WO
WIPO (PCT)
Prior art keywords
board
flex
printed board
chip
printed
Prior art date
Application number
PCT/CN2022/079878
Other languages
English (en)
French (fr)
Inventor
丁利斌
严航
朱文学
刘洋
郭翔
李文亮
Original Assignee
华为技术有限公司
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.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP22774043.8A priority Critical patent/EP4287789A1/en
Publication of WO2022199381A1 publication Critical patent/WO2022199381A1/zh
Priority to US18/471,352 priority patent/US20240012214A1/en

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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
    • G02B6/4278—Electrical aspects related to pluggable or demountable opto-electronic or electronic elements
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/18—Printed circuits structurally associated with non-printed electric components
    • H05K1/181—Printed circuits structurally associated with non-printed electric components associated with surface mounted components
    • 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
    • G02B6/428—Electrical aspects containing printed circuit boards [PCB]
    • G02B6/4281—Electrical aspects containing printed circuit boards [PCB] the printed circuit boards being flexible
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/646—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00 specially adapted for high-frequency, e.g. structures providing an impedance match or phase match
    • H01R13/6461—Means for preventing cross-talk
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/14—Structural association of two or more printed circuits
    • H05K1/147—Structural association of two or more printed circuits at least one of the printed circuits being bent or folded, e.g. by using a flexible printed circuit
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10007—Types of components
    • H05K2201/10121—Optical component, e.g. opto-electronic component

Definitions

  • the present application relates to the field of communication technologies, and in particular, to a service board and communication equipment.
  • Optical communication technology has become a low-cost and mass-produced technology, which is widely used in applications such as switch interconnection and server interface.
  • pluggable optical modules are required to Connect the fiber optic cable that carries the data to the network communication equipment such as the switch.
  • network communication equipment such as switches or base stations are provided with service boards
  • the service boards include a printed circuit board (Printed Circuit Board; PCB), a chip arranged on the printed circuit board, and an optical cage, wherein the optical cage is located on the printed circuit board.
  • the edge of the optical cage and the chip are electrically connected, and the optical module is pluggable and arranged on the interface of the optical cage, so as to realize the signal connection between the optical module and the chip.
  • cables can be drawn out from the back side of the optical cage, and the optical cage can be connected to the chip side through cables, such as crimping connections on the chip side through connectors, or contact connections with shrapnel, etc., so as to realize the connection between the optical cage and the chip. Electrical connection, thereby realizing the electrical connection between the optical module and the chip.
  • This application provides a service board and communication equipment, which solves the problem of poor integration of the service board when the interfaces on the optical cage side in the existing service board are dense, and the weight, volume, occupied space and wind resistance are large, and are not suitable for high-speed Problems in high-density transmission scenarios.
  • a first aspect of the present application provides a service board, comprising: a first printed board, at least one chip, and at least one layer of optical cages, each layer of the optical cage layer includes a plurality of optical cages, each of the optical cages There is an opening facing the panel side, and the opening is used for inserting an optical module;
  • the service board further includes a flex board
  • the optical cage includes a housing and a plurality of signal pins
  • one end of the flex board is electrically connected to the tail ends of the plurality of signal pins
  • the other end of the flex board is connected to a
  • the chips are electrically connected
  • the tail ends of the plurality of signal pins refer to one end of the plurality of signal pins away from the opening of the optical cage.
  • the tail ends of the plurality of signal pins of the optical cage are directly connected to the chip side of the flex board to realize electrical connection.
  • the vertical communication path can be avoided and shortened.
  • the link length reduces insertion loss and crosstalk, making the service board more suitable for high-speed transmission scenarios.
  • flex boards have high wiring density, soft overall structural properties, good bending performance, and can be bent and twisted at any angle to achieve non-coplanar connection between multilayer optical cages and chips.
  • it improves the integration level of the service board, facilitates assembly, reduces the introduction of problems such as configuration height, volume, and large footprint, reduces link insertion loss and crosstalk, and realizes high-density connection and simplified design of service boards. , so that the service board can be better applied to high-density and high-speed transmission scenarios.
  • the tail ends of the plurality of signal pins protrude from the tail end of the housing, and the tail end of each signal pin of the plurality of signal pins is a first bump structure .
  • the flexible board may have a connecting portion, and a plurality of second bump structures may be provided on the board surface of the connecting portion, and the plurality of second bump structures may be in contact with the corresponding plurality of first bump structures, and realize electrical connection, and further
  • the electrical connection between the flexible board and the optical cage is realized, and the connection method is simple and convenient to realize.
  • the tail ends of the plurality of signal pins protrude from the tail end of the housing, and the tail end of each signal pin in the plurality of signal pins is a spring sheet structure.
  • the elastic sheet structure is in contact with the second bump structure on the connecting part of the flexible board to realize electrical connection, so as to realize the electrical connection between the flexible board and the optical cage.
  • the elastic sheet structure Since the elastic sheet structure is elastic, it can be compressed and elastically deformed.
  • the second bump structure When the second bump structure is in contact with the elastic sheet structure and is electrically connected, the second bump structure can be pressed against the elastic sheet structure, so that the elastic sheet structure is in an elastically contracted state.
  • the elastic restoring force of the contracted shrapnel structure itself can react to the second bump structure, so that the contact between the shrapnel structure and the second bump structure is more firm, and the reliability of the electrical connection between the elastic piece structure and the second bump structure is improved. This ensures the reliability of the electrical connection between the optical cage and the flexible board, and improves the stability and quality of signal transmission.
  • the tail ends of the plurality of signal pins all protrude from the tail end of the housing, and the tail end of each signal pin in the plurality of signal pins is an elastic needle, and the elastic The needle is in contact with the second bump structure on the connecting part of the flexible board and is electrically connected, so as to realize the electrical connection between the flexible board and the optical cage.
  • the elastic needle is an elastic component with a spring, which can be elastically deformed.
  • the elastic needle can be pushed to elastically compress, and the elastic restoring force of the elastic needle will react to the second
  • the bump structure ensures the reliability of the electrical connection between the second bump structure and the elastic pins, and ensures the reliability of the electrical connection between the optical cage and the flexible board.
  • the flexible board has a connecting portion, a first surface of the connecting portion faces the rear end of the housing, and a plurality of second bumps are provided on the board surface of the connecting portion structure, the plurality of second bump structures are in contact with the tail ends of the corresponding plurality of signal pins and achieve electrical connection.
  • the flexible board is in contact with the tail ends of a plurality of signal pins of the optical cage through the second bump structure on the connecting portion and realizes electrical connection, that is, the electrical connection is realized by abutting contact, which has a high degree of detachment. It is easy to realize the decoupling between the optical cage and the flexible board, which is convenient for assembly, disassembly and replacement.
  • the tail ends of the plurality of signal pins protrude from the tail end of the housing, and the tail end of each signal pin in the plurality of signal pins is a fish-eye structure, that is, The electrical connection is realized with the flexible board through the fish-eye structure.
  • the flexible board has a connecting portion, a first surface of the connecting portion faces the rear end of the housing, and a plurality of signal via holes are provided on the board surface of the connecting portion, The plurality of fisheye structures are pressed into the plurality of signal vias one-to-one. In this way, the fisheye structure is brought into contact with the signal via hole, and the electrical connection between the fisheye structure and the signal via hole is realized, thereby realizing the electrical connection between the flexible board and the optical cage.
  • the fisheye structure has an elastic crimping ring
  • the elastic crimping ring when the fisheye structure is pressed into multiple signal vias one-to-one, the elastic crimping ring is in an elastically contracted state, and the elastic restoring force of the elastic crimping ring will react against the signal.
  • Through holes so that the elastic crimping ring is clamped in the signal through holes, which ensures the reliability of the electrical connection between the flexible board and the optical cage.
  • the tail ends of the plurality of signal pins protrude from the tail end of the housing, and the plurality of signal pins include a first signal pin array and a second signal pin array, so The first signal pin array is used for sending signals to the chip, and the second signal pin array is used for receiving signals from the chip.
  • a second surface of the connecting portion is provided with a reinforcing structure, and the second surface is away from the first surface.
  • the strength of the flex board can be improved by strengthening the structure, to ensure the fastness of the electrical contact connection between the flex board and the optical cage after the flex board and the optical cage are fixedly connected, and to improve the stability and quality of signal transmission.
  • a locking structure is further included, and the locking structure is used to fasten the connecting portion and the corresponding rear end of the housing.
  • the fixing of the flexible board and the housing of the optical cage is realized through the locking structure.
  • a locking structure is further included, and the locking structure is used to fasten the connecting portion, the reinforcing structure and the corresponding rear end of the housing.
  • the tail ends of the plurality of signal pins are all located in the housing, and the flexible board extends into the interior of the housing from the tail end of the housing, and is connected with the housing.
  • the tail ends of the plurality of signal pins are electrically connected.
  • the electrical connection between the flexible board and the optical cage is realized.
  • the flexible board and the optical cage have better connection fastness, which increases the strength of the electrical connection between the flexible board and the optical cage, improves the reliability of the connection, and further improves the stability and quality of signal transmission.
  • the path between the signal pin and the flex board can be further shortened, further reducing link loss and crosstalk.
  • the at least one chip is disposed on the first printed board and is electrically connected to the first printed board, and at least one flex board is disposed on the first printed board , the at least one flex board is fixed on the first printed board through a joint, and the at least one chip and the at least one flex board are both located on the same side of the first printed board, or are respectively located on the same side of the first printed board. the two sides of the first printed board;
  • the joint portion is a part of the flex board, and the flex board is electrically connected to the first printed board;
  • the bonding portion includes a part of each of the plurality of flex boards, and the bonding portion is electrically connected to the first printed board.
  • the flex board is electrically connected to the first printed board, and the first printed board is electrically connected to the chip, thereby realizing the electrical connection between the flex board and the chip, and realizing the electrical connection between the optical cage and the chip through the flex board.
  • the at least one chip is disposed on the first printed board and is electrically connected to the first printed board, and at least one flex board is disposed on the first printed board ;
  • the first printed board includes a flex-rigid bonding area, and a part of the first printed board and a part of the at least one flex board are laminated to form the flex-rigid bonding area, the at least one flex board and the The first printed board is electrically connected.
  • the fixed and electrical connection of at least one flex board and the first printed board is realized by forming a soft-hard joint area by mixed pressure, which ensures the connection fastness of the flex board and the first printed board, and improves the stability and quality of signal transmission.
  • the at least one chip includes at least one chip element, a second printed board electrically connected to the at least one chip element, and the second printed board is disposed on the first printed board.
  • a printed board, the second printed board is provided with at least one flex board, the at least one flex board is fixed on the second printed board through a joint, the chip component and the at least one flex board are The boards are all located on the same side of the second printed board;
  • the joint part is a part of the flex board, and the flex board is electrically connected to the second printed board;
  • the coupling portion includes a part of each of the plurality of flex boards, and the coupling portion is electrically connected to the second printed board.
  • the flex board is directly electrically connected to the second printed board of the chip. Compared with the electrical connection between the flex board and the chip through the first printed board, the link loss and crosstalk can be further reduced, and the service board can be improved. performance.
  • the at least one chip includes at least one chip element, a second printed board electrically connected to the at least one chip element, and the second printed board is disposed on the first printed board.
  • a printed board, the second printed board is provided with at least one flex board;
  • the second printed board includes a flex-rigid bonding area, and a part of the second printed board and a part of the at least one flex board are laminated to form the flex-rigid bonding area, the at least one flex board and the The second printed board is electrically connected.
  • the fixation and electrical connection of at least one flex board and the second printed board are realized by the method of forming a soft-hard combination area by mixed pressure, which ensures the connection fastness of the flex board and the second printed board, and improves the stability of signal transmission and the stability of the signal transmission. quality.
  • a second aspect of the present application provides a communication device, comprising a body and any one of the above-mentioned service boards, the body has a slot position, and the service board is inserted in the slot position.
  • the service board realizes the electrical connection between the chip and the optical cage through the flexible board, so that the communication path can be shortened, and the insertion loss and crosstalk can be reduced.
  • the flexible board has good bending performance and high wiring density. It can be bent and twisted arbitrarily, and occupies a small space. It realizes non-coplanar connection between the multi-layer optical cage and the chip, and improves the business.
  • the integration of the board is easy to assemble, and it reduces the introduction of problems such as configuration height, volume and large space occupation, and realizes high-density connection and simplified design of service boards, thereby helping to reduce the space occupied by communication equipment, and It makes communication equipment suitable for high-speed and high-density transmission of signals.
  • FIG. 1 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of a service board provided by an embodiment of the present application.
  • FIG. 3 is a schematic diagram of a connection between an optical cage and a chip in a service board provided by an embodiment of the present application;
  • FIG. 4 is a schematic structural diagram of an optical cage and a flexible board provided in an embodiment of the present application before being connected;
  • FIG. 5 is a schematic structural diagram of an optical cage plugged with an optical module and a flexible board before connection provided by an embodiment of the present application;
  • FIG. 6 is a schematic cross-sectional structural diagram of an optical cage with an optical module inserted and connected to a flexible board provided in an embodiment of the present application;
  • FIG. 7 is a schematic structural diagram of an optical cage provided by an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a first connection portion of a flexible board provided by an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of an optical cage and a flexible board provided in an embodiment of the present application before being connected;
  • FIG. 10 is a schematic cross-sectional structural diagram of an optical cage with an optical module plugged in and a flexible board provided in an embodiment of the present application before being connected;
  • FIG. 11 is a schematic structural diagram of another optical cage and flexible board connection provided by an embodiment of the present application.
  • FIG. 12 is a schematic cross-sectional structural diagram of another optical cage with an optical module inserted and connected to a flexible board provided in an embodiment of the present application;
  • FIG. 13 is a schematic structural diagram of yet another optical cage and a flexible board provided in an embodiment of the present application before being connected;
  • FIG. 14 is a schematic cross-sectional structure diagram of another optical cage with an optical module inserted and connected to a flexible board provided in an embodiment of the present application;
  • 15 is a schematic structural diagram of another optical cage and flexible board connection provided by an embodiment of the present application.
  • 16 is a schematic cross-sectional structural diagram of another optical cage with an optical module plugged in and a flexible board connection provided by an embodiment of the present application;
  • 17 is a schematic diagram of a connection structure between an optical cage and a chip in yet another service board provided by an embodiment of the present application;
  • FIG. 18 is a schematic structural diagram of a connection between a first printed board and a flex board provided by an embodiment of the present application;
  • FIG. 19 is a schematic structural diagram of another connection between a first printed board and a flex board provided by an embodiment of the present application.
  • FIG. 20 is a schematic structural diagram of yet another first printed board connected to a flex board according to an embodiment of the present application.
  • 21 is a schematic structural diagram of a connection between a second printed board and a flex board provided by an embodiment of the present application;
  • FIG. 22 is a schematic structural diagram of another connection between a second printed board and a flex board according to an embodiment of the present application.
  • Embodiments of the present application provide a service board and a communication device, where the communication device may be any communication device that needs to be connected to an optical module, such as a switch, a router, a network transmission device, and a broadband access device.
  • an optical module such as a switch, a router, a network transmission device, and a broadband access device.
  • the communication device 1 may include a body 300 and a service board 100 .
  • the body 300 may have several slot positions, and the service board 100 may be inserted in the slot positions, wherein the body 300 There can be a plurality of slots provided on it, each slot can accommodate one service board 100, and each service board 100 can have at least one optical cage layer, and each optical cage layer can include a plurality of optical cages.
  • the cages 40 , each optical cage 40 has an opening 411 facing the panel side, and the opening 411 is used to insert one optical module 200 .
  • the service board 100 includes a flex board 10, a first printed board 20, at least one chip 30 and at least one optical cage layer, wherein the chip 30 and the optical cage layer may both be located on the first printed board 20, the optical cage layer can be arranged on one side of the first printed board 20, and is located at the edge of the first printed board 20, and the end face of the optical cage 40 for plugging in the optical module 200 is the panel side of the service board 100 .
  • the first printed board 20 may be a printed circuit board (Printed circuit boards; PCB), which serves as a support for the entire service board.
  • the flexible board 10 can be a flexible printed circuit board made of polyimide or polyester film as a base material, which has the characteristics of high wiring density, light weight, and thin thickness.
  • the service board 100 includes multiple layers of optical cages.
  • Each optical cage layer includes multiple optical cages 40 , and each optical cage 40 faces the opening 411 on the panel side and is connected to an optical module correspondingly. 200 , so that the optical module 200 is electrically connected to the optical cage 40 , so that signals can be transmitted from the optical module 200 to the optical cage 40 .
  • the optical cage 40 may include a housing 41 and a plurality of signal pins 42 (refer to FIG. 6 ), and one end of the flex board 10 may The electrical connection with the tail ends of the plurality of signal pins 42 realizes the electrical connection between the optical cage 40 and the flexible board 10 , so that signals can be transmitted from the optical cage 40 to the flexible board 10 .
  • the tail end of the plurality of signal pins 42 refers to one end of the plurality of signal pins 42 away from the opening 411 of the optical cage 40 .
  • the other end of the flex board 10 is electrically connected to a chip 30 , so that signals are transmitted from the flex board 10 to the chip 30 for data signal processing.
  • the electrical connection between the chip 30 and the optical cage 40 can be realized through the flexible board 10 , that is, the electrical connection between the chip 30 and the optical module 200 can be realized, so that the signal can be transmitted from the optical module 200 to the chip of the service board 100 30 to realize signal transmission and processing.
  • the tail ends of the plurality of signal pins 42 of the optical cage 40 are directly connected to the flex board 10 to realize electrical connection with the chip side.
  • vertical connection can be avoided. path, shortens the link length, reduces insertion loss and crosstalk, and makes the service board 100 more suitable for high-speed transmission scenarios.
  • the flex board 10 has high wiring density, soft overall structural characteristics, good bending performance, and can be bent and twisted at any angle to achieve non-coplanarity between the multilayer optical cage 40 and the chip 30 .
  • it improves the integration of service boards, facilitates assembly, reduces the introduction of problems such as configuration height, volume and large space, reduces link insertion loss and crosstalk, and realizes high-density connection of service boards 100.
  • the simplified design makes the service board 100 more suitable for high-density and high-speed transmission scenarios.
  • the housing 41 of the optical cage 40 is provided with an opening 411 for inserting the optical module.
  • the head ends of the plurality of signal pins 42 (the end opposite to the tail end) It can be located in the opening 411 and electrically connected to the optical module 200 inserted in the opening 411 .
  • the head ends of the plurality of signal pins 42 can form a claw-like structure. It can be inserted into the claw-like structure to be in snap contact with a plurality of signal pins 42 and realize electrical connection, so as to realize the electrical connection between the optical module 200 and the optical cage 40 .
  • the tail ends of the plurality of signal pins 42 of the optical cage 40 can all protrude from the tail end of the housing 41 , so that the flex board 10 is electrically connected to the tail ends of the plurality of signal pins 42 , thereby realizing the connection between the flex board 10 and the optical cage 40 . electrical connection between.
  • the tail ends of the plurality of signal pins 42 protrude from the tail end of the housing 41 , and the tail ends of the plurality of signal pins 42 are The first bump structure 43 .
  • the flexible board 10 has a connecting portion 11 , the first surface of the connecting portion 11 faces the rear end of the housing 41 , and a plurality of second bump structures 111 are provided on the board surface of the connecting portion 11 , and the plurality of second bump structures 111 can be Contact with the tail ends of the plurality of signal pins 42 of the corresponding optical cage 40 and realize electrical connection. That is, the plurality of second bump structures 111 are in contact with the corresponding plurality of first bump structures 43 , and the electrical connection between the second bump structures 111 and the first bump structures 43 is realized.
  • the first bump structure 43 and the second bump structure 111 realize hard contact, so that the first bump structure 43 and the second bump structure 111 are electrically connected, thereby realizing the electrical connection between the flexible board 10 and the optical cage 40 ,
  • the connection method is simple and easy to implement.
  • the tail ends of the plurality of signal pins 42 may protrude out of the housing 41 by about 1 mm to form the first bump structure 43 , that is, the first bump structure 43 may be a part of the signal pins 42 .
  • the second bump structure 111 may be composed of a plurality of pads raised on the flexible board 10 , the shape of the pads may be a rectangle, the length of the pads may be about 0.5 mm, and the width may be about 0.6 mm. Alternatively, the shape of the pad may be circular, and its diameter may be about 0.6 mm.
  • the surface of the second bump structure 111 may be plated with a metal layer, such as gold plating, silver plating, etc., so as to prevent the surface of the second bump structure 111 from rusting, affecting the first bump structure 43 and the second bump structure 111 reliability, thereby ensuring the reliability of the electrical connection between the flexible board 10 and the optical cage 40, and improving the stability and quality of signal transmission.
  • a metal layer such as gold plating, silver plating, etc.
  • the plurality of signal pins 42 can be metal conductors with a certain elastic deformation, so that when the first bump structure 43 and the second bump structure 111 are in contact with each other, the signal pins 42 can be compressed to produce a certain elastic deformation , helps to improve the contact fastness between the first bump structure 43 and the second bump structure 111 , ensures the connection reliability of the first bump structure 43 and the second bump structure 111 , and thus ensures the optical cage 40 The reliability of the electrical connection with the flexible board 10 improves the stability and quality of signal transmission.
  • the optical module 200 has a signal transmitting end (Transmitter; TX) and a signal receiving end (Receiver; RX), therefore, as shown in FIG.
  • the plurality of signal pins 42 may include a first signal pin array 40a and a second signal pin array 40b, the first signal pin array 40a is used for sending signals to the chip 30, and the second signal pin array 40b is used for receiving from the chip 30 signal of.
  • the plurality of second bump structures 111 may include a first bump array 10 a and a second bump array 10 b , the first bump array 10 a and the The first signal pin array 40a corresponds to and is electrically connected to, the second bump array 10b corresponds to and is electrically connected to the second signal pin array 40b, and the first signal pin array 40a can be electrically connected to the signal transmitting end of the optical module 200, so that the The signals on the optical module 200 can be transmitted to the first bump array 10a of the flex board 10 through the first signal pin array 40a of the optical cage 40 .
  • the second signal pin array 40b can be electrically connected to the signal receiving end of the optical module 200, and the signal can also be transmitted from the second bump array 10b of the flex board 10 to the second signal pin array 40b of the optical cage 40, and sent to the optical module 200 , thereby realizing signal transmission between the optical module 200 and the chip 30 .
  • the flexible board 10 may be a three-layer board structure with a signal layer in the middle.
  • a differential line is run on the flexible board 10 .
  • One end of the differential line is electrically connected to the second bump structure 111 , and the other end of the differential line is used for electrical connection with the chip 30 . , so as to realize the signal transmission between the optical cage 40 and the chip 30 .
  • the center-to-center spacing of two laterally adjacent second bump structures may be about 1.0 mm
  • the center-to-center spacing of two longitudinally adjacent second bump structures is about 2.0 mm to avoid longitudinal Signal interference between the last two signal transmission channels.
  • connection part 11 of the flexible board 10 can be fixedly connected to the rear end of the housing 41 of the optical cage 40 , and the connection part 11 can be fixed to the rear end of the housing 41 by means of bonding, snap connection or screw connection.
  • the service board 10 may further include a locking structure, and the locking structure is used to fasten the connection part and the tail end of the corresponding optical cage.
  • the connection part 11 may be provided with a mounting hole 12 ,
  • the locking structure can be a screw, a pin, etc.
  • the mounting hole 12 can be a threaded hole or an optical hole, etc., so that the locking structure can be fixedly connected with the optical cage 40 through the mounting hole 12, so that the locking structure and the mounting hole 12 are realized.
  • the connection between the flex board 10 and the optical cage 40 is fixed.
  • the flex board 10 when the structural strength of the flex board 10 is relatively soft, and the flex board 10 is fixedly connected with the optical cage 40 , the flex board 10 is easily deformed, so that the second bump structure 111 of the flex board 10 and the first bump structure 111 of the optical cage 40 are easily deformed.
  • the bump structure 43 is prone to the problem of poor contact, which reduces the reliability of the electrical connection.
  • the second surface of the connecting portion 11 is further provided with a reinforcing structure, wherein the second surface is away from the first surface, and the reinforcing structure can be a reinforcing sheet.
  • the reinforcing structure, the connecting part 11 and the rear end of the shell 41 of the optical cage 40 can also be fixed by the locking structure.
  • the strength of the flex board 10 can be improved by strengthening the structure, so as to ensure the contact fastness of the second bump structure 111 and the first bump structure 43 after the flex board 10 is fixedly connected to the optical cage 40 , and improve the stability and quality of signal transmission.
  • the reinforcing structure may be selected and set according to the structural strength of the flex board. For example, when the structural strength of the flex board 10 is good, the reinforcing structure may not be provided.
  • the tail ends of the plurality of signal pins 42 are all protruded from the tail end of the housing 41 , and the tail end of each signal pin 42 of the plurality of signal pins 42 It is a spring structure 44, that is, the tail end of each signal pin 42 has a spring structure 44, and a plurality of second bump structures 111 are provided on the board surface of the connecting portion 11 of the flex board 10, and a plurality of second bump structures 111 It can be in contact with a plurality of corresponding elastic sheet structures 44 , and realize the electrical connection between the second bump structure 111 and the elastic sheet structures 44 , thereby realizing the electrical connection between the flexible board 10 and the optical cage 40 .
  • the elastic sheet structure 44 when the elastic sheet structure 44 is in contact with the second bump structure 111, since the elastic sheet structure 44 has elasticity, it can be compressed and elastically deformed.
  • the second bump structure 111 can squeeze the elastic sheet structure 44, so that the elastic sheet structure 44 is in an elastically contracted state, so that the contracted elastic sheet structure 44 has its own elastic recovery.
  • the force can react on the second bump structure 111, so that the contact between the elastic sheet structure 44 and the second bump structure 111 is more firm, and the reliability of the electrical connection between the elastic sheet structure 44 and the second bump structure 111 is improved.
  • the reliability of the electrical connection between the cage 40 and the flexible board 10 improves the stability and quality of signal transmission.
  • the elastic sheet structure 44 may include a body end 441 and a bent end 442 connected to the body end 441 .
  • the body end 441 is fixed and electrically connected to the corresponding plurality of signal pins 42 , and at least part of the bent end 442 extends Out of the casing 41 , the second electrical bump structure 111 is in electrical contact with the bent end 442 .
  • the elastic sheet structure 44 can protrude out of the casing 41 by about 1 mm.
  • the elastic sheet structure 44 can be a metal conductor, and the bent end 442 formed after bending has a large amount of elastic deformation, so that when the second bump structure 111 is in contact with the elastic sheet structure 44, the bent end 442 can be squeezed The elastic sheet structure 44 is deformed and contracted, thereby ensuring the reliability of the electrical connection between the second bump structure 111 and the elastic sheet structure 44 .
  • the tail ends of the plurality of signal pins 42 all extend from the tail end of the housing 41 , and the tail end of each signal pin 42 is an elastic pin, as shown in FIG.
  • the tail end of each signal pin 42 has an elastic pin 45
  • a plurality of second bump structures 111 are provided on the board surface of the connecting portion 11 of the flex board 10, and the plurality of second bump structures 111 can be Contact with the corresponding plurality of elastic pins 45 , and realize the electrical connection between the second bump structure 111 and the elastic pins 45 , thereby realizing the electrical connection between the flexible board 10 and the optical cage 40 .
  • the elastic needle 45 is a retractable elastic component with a spring, which may include an outer cylinder 451 and an inner cylinder 452 sleeved in the outer cylinder 451, and one end of the inner cylinder 452 protrudes out of the outer cylinder 451,
  • the other end of the inner cylinder 452 is connected to the outer cylinder 451 through a spring member, so that the inner cylinder 452 can slide relatively along the axis of the outer cylinder 451, so that the inner cylinder 452 can move towards or away from the elastic member, and also That is, the inner tube 452 undergoes a telescopic movement in the axial direction relative to the outer tube 451 .
  • At least a part of the inner cylinder 452 can protrude out of the housing 41.
  • the elastic needle 45 can protrude out of the housing 41 by about 0.5 mm.
  • the inner cylinder 452 when the inner cylinder 452 is fully extended relative to the outer cylinder 451, the inner cylinder 452 can extend Out of the casing 41 about 0.5mm.
  • the second bump structure 111 can be in electrical contact with the inner barrel 452 .
  • the inner cylinder 452 When the second protruding point structure 111 is in contact with the inner cylinder 452, the inner cylinder 452 can be pushed to move toward the spring member, so that the spring member is compressed, and the elastic restoring force of the spring member will react against the second protruding point structure 111, thereby The reliability of the electrical connection between the second bump structure 111 and the elastic pins 45 is guaranteed.
  • a plurality of signal vias 112 may be provided on the board surface of the connecting portion 11 , and the tail ends of the plurality of signal pins 42 extend from the housing 41 . out, and the tail end of each signal pin in the plurality of signal pins 42 may be a fisheye structure, that is, there is a fisheye structure 46 at the tail end of each signal pin 42, and the plurality of fisheye structures 46 are pressed one-to-one.
  • the fisheye structure 46 is in contact with the inner wall of the signal vias 112, and the electrical connection between the fisheye structure 46 and the signal vias 112 is realized, thereby realizing the electrical connection between the flexible board 10 and the optical cage 40. connect.
  • the fisheye structure 46 is a connection structure with an elastic crimping portion.
  • the fisheye structure 46 is pressed into the signal via hole 112 to facilitate the connection between the fisheye structure 46 and the signal via hole 112 and facilitate assembly.
  • the resilient force generated by the compression of the elastic crimping portion acts on the signal via hole 112, which can ensure the reliability of the electrical connection between the fisheye structure 46 and the signal via hole 112. That is, the reliability of the electrical connection between the flexible board 10 and the optical cage 40 is guaranteed.
  • the fisheye structure 46 may include an insertion end 461 , a connecting end 462 and an elastic crimping ring 463 , and the elastic crimping ring 463 is located at the insertion end Between 461 and the connecting end 462, the elastic crimping ring 463 is connected with the inserting end 461 and the connecting end 462 respectively, and the elastic crimping ring 463 can undergo elastic contraction deformation in the radial direction. At least the insertion end 461 and the elastic crimping ring 463 protrude out of the housing 41 , and the connecting end 462 can partially protrude out of the housing 41 . Specifically, the fisheye structure 46 can protrude out of the housing 41 by about 1 mm.
  • connection ends 462 are connected to the corresponding plurality of signal pins 42 , so that the fisheye structure 46 is electrically connected to the corresponding signal pins 42 .
  • the insertion end 461 and the elastic crimping ring 463 can extend into the signal via hole 112 , and when the elastic crimping ring 463 extends into the electrical connection via hole, the elastic crimping ring 463 is squeezed into an elastic state. In the retracted state, the outer wall of the elastic crimping ring 463 is in contact with the inner wall of the signal via hole 112 , so that the fisheye structure 46 is electrically connected to the signal via hole 112 .
  • the elastic crimping ring 463 since the elastic crimping ring 463 is in the elastically contracted state, the elastic restoring force of the elastic crimping ring 463 will react against the signal via hole 112, so that the elastic crimping ring 463 is clamped in the signal via hole 112, ensuring the flexible board Reliability of electrical connection between 10 and optical cage 40.
  • the cross-sectional width of the insertion end 461 and the aperture size of the signal via hole 112 can be both smaller than the outer diameter width of the elastic crimping ring 463, so that the elastic crimping ring 463 can be elastically stretched into the signal via hole 112. contracted state.
  • the cross-sectional width of the end of the insertion end 461 away from the elastic crimping ring 463 may gradually increase in the direction toward the elastic crimping ring 463, so that the end of the insertion end 461 away from the elastic crimping ring 463 is sharp Head-shaped, so that the insertion end 461 can play a transitional role, which is convenient for the elastic crimping ring 463 to be pressed into the signal via hole 112 to realize the electrical connection between the fisheye structure 46 and the signal via hole 112, which is convenient for assembly.
  • the tail ends of the plurality of signal pins 42 are extended from the tail end of the housing 41 , and a plurality of second bump structures 111 or signal vias 112 are arranged on the connection portion 11 of the flex board 10 ,
  • the electrical connection between the flexible board 10 and the optical cage 40 is realized by connecting the tail ends of the plurality of signal pins 42 to the second bump structure 111 or the signal via hole 112 .
  • the electrical connection is directly realized with the connection part 11 of the flexible board 10, which can avoid vertical communication paths and reduce insertion loss and crosstalk.
  • the plurality of signal pins 42 are in direct contact with the corresponding second bump structures 111 , or the plurality of signal pins 42 can be pressed into the corresponding signal via holes 112 to achieve electrical connection, which has a higher performance. It is easy to realize the decoupling between the optical cage 40 and the flexible board 10, which is convenient for assembly, disassembly and replacement.
  • the tail ends of the plurality of signal pins 42 of the optical cage 40 can also be located in the housing 41 , as shown in FIG. 15 and FIG. 16 , the flexible board 10 can extend from the tail end of the housing 41 of the optical cage 40 into the interior of the housing 41 , and is electrically connected to the tail ends of the plurality of signal pins 42 , so as to realize the electrical connection between the flexible board 10 and the optical cage 40 .
  • the flexible board 10 and the optical cage 40 have better connection fastness, which increases the strength of the electrical connection between the flexible board 10 and the optical cage 40, improves the reliability of the connection, and further improves the stability and quality of signal transmission.
  • the path between the signal pin 42 and the flexible board 10 can be further shortened, and the link loss and crosstalk can be further reduced.
  • the flex board 10 can be integrally formed with the optical cage 40 . Specifically, it can be formed by two injection molding methods. In the first injection molding, the plurality of signal pins 42 are pre-positioned, and the plurality of signal pins 42 are integrated with the flex board 10 . They are fixed together by soldering with soldering pads, and then a second injection is performed to form a plurality of signal pins 42 , the flex board 10 and the housing 41 into one piece.
  • At least one chip 30 is disposed on the first printed board 20 and is electrically connected to the first printed board 20 .
  • the flex board 10 may be electrically connected to the first printed board 20 .
  • At least one flex board 10 may be provided on the first printed board 20 , as shown in FIG.
  • the joint portion 13 may be disposed on the first printed board 20 by welding, crimping, bumps, spring sheets, or socket connections.
  • At least one chip 30 and at least one flex board 10 may be located on both sides of the first printed board 20 , for example, may be located on two opposite sides of the first printed board 20 respectively.
  • the at least one flex board 10 may be positioned directly below or obliquely below the at least one chip 30 .
  • At least one chip 30 and at least one flex board 10 may be located on the same side of the first printed board 20 , which facilitates connection and helps reduce the height of the service board 100 .
  • At least one flex board may include only one flex board 10 , or may also include multiple flex boards 10 .
  • the joint portion 13 is a part of the flex board 10
  • the flex board 10 It is electrically connected to the first printed board 20
  • the first printed board 20 is electrically connected to the chip 30 , so as to realize the electrical connection between the flex board 10 and the chip 30 , that is, to realize the connection between the optical cage 40 and the chip 30 through the flex board 10 . electrical connection.
  • a reinforcing structure can be provided on the side of the joint portion 13 opposite to the first printed board 10 , and the strength of the flex board 10 can be improved by the reinforcing structure, so as to ensure the connection between the flex board 10 and the first printed board 10 . Connection fastness.
  • the joint portion 13 includes a part of each piece of the flex board 10 in the plurality of pieces of flex boards, that is, each piece of the flex board 10 is mixed to form a joint portion 13, and the joint portion 13 and the first printing plate 13 are formed.
  • the board 10 is electrically connected, so as to realize the electrical connection between the flexible board 10 and the chip 30 .
  • At least one flex board includes multiple flex boards 10, there may be a gap between at least some of the two adjacent flex boards 10, so that while the flex boards 10 meet the requirements of high-density connection, the gap between the flex boards 10 can be The bending of the flexible board 10 is facilitated, which helps to further reduce the volume and occupied space of the service board 100 , reduces wind resistance, and further improves the performance of the service board 100 .
  • the bonding part 13 can be a flexible-rigid combination board formed after the flex board 10 is mixed with a part of the hard board, so that the bonding part 13 has higher strength, improves the connection reliability between the flex board 10 and the chip 30, and improves the signal transmission efficiency. Stability and quality.
  • the connection portion 11 of the flex board 10 may also be a rigid-flex board, so as to further improve the connection fastness of the flex board 10 and the optical cage 40 .
  • the first printed board 20 may include a flex-rigid bonding area 14 , and a part of the first printed board 20 and a part of at least one flex board 10 are laminated to form the flex-rigid bonding area 14 , and at least A piece of the flex board 10 is electrically connected to the first printed board 20 . That is, a part of the at least one flex board 10 and a part of the first printed board 20 are mixed into one, and the electrical connection between the at least one flex board 10 and the first printed board 20 is realized, so that the flex board 10 and the chip 30 are realized electrical connection.
  • the fixed and electrical connection of at least one flex board 10 and the first printed board 20 is realized by forming the soft and hard bonding area 14 by mixed pressure, which ensures the connection fastness of the flex board 10 and the first printed board 20 and improves the stability of signal transmission. sex and quality.
  • the flex board 10 may be electrically connected to the second printed board 32 of the at least one chip 30 .
  • At least one chip 30 may include at least one chip element 31 and a second printed board 32 , the second printed board 32 is used to package at least one chip element 31 , and the second printed board 32 It can be arranged on the first printed board 20, and the chip element 31 is electrically connected to the second printed board 32, so as to realize the electrical connection between the chip element 31 and the external circuit.
  • At least one flex board 10 may be provided on the second printed board 32, and at least one flex board 10 is fixed on the second printed board 32 through the joint portion 13. Specifically, as shown in FIG. 21, at least one chip component and at least one flex board are located on the same side of the first printed board.
  • the joint portion 13 may be disposed on the second printed board 32 by means of welding, bump or elastic piece connection.
  • At least one flex board may include only one flex board 10 , the joint portion 13 is a part of the flex board 10 , and the flex board 10 is electrically connected to the second printed board 32 , so that the chip element 31 is electrically connected to the flex board 10 , Further, the electrical connection between the chip 30 and the optical module 200 is realized, so that signals can be transmitted between the optical module 200 and the chip 30 .
  • a reinforcing structure can be provided on the side of the joint portion 13 that is opposite to the second printed board 32, which can improve the strength of the flex board 10 and ensure the connection fastness of the flex board 10 and the second printed board 32. Improve the stability and quality of signal transmission.
  • At least one flex board may also include multiple flex boards 10 , the joint portion 13 includes a part of each flex board 10 of the multiple pieces of flex boards 10 , and the joint portion 13 is electrically connected to the second printed board 32 , thereby realizing the electrical connection between the chip 30 and the flexible board 10 .
  • the second printed board 32 may include a flex-rigid bonding area 14 , and a part of the second printed board 32 and a part of at least one flex board 10 are laminated to form the flex-rigid bonding area 14 , and At least one flex board 10 is electrically connected to the second printed board 32 . That is, at least a part of the flex board 10 and a part of the second printed board 32 are mixed and pressed into one, and the electrical connection between the at least one flex board 10 and the second printed board 32 is realized, so that the flex board 10 and the chip 30 are realized electrical connection.
  • the fixation and electrical connection of at least one flex board 10 and the second printed board 32 are realized by the method of forming the soft and hard bonding area 14 by mixed pressure, which ensures the connection fastness of the flex board 10 and the second printed board 32, and improves the signal Transmission stability and quality.
  • the flex board 10 is directly electrically connected to the second printed board 32 of the chip 30 , which can further reduce the link loss compared to the electrical connection between the first printed board 20 and the chip 30 . and crosstalk, which helps to improve the performance of the service board 100 .

Abstract

本申请实施例提供一种业务板及通信设备，该业务板包括柔板、至少一个芯片和至少一层光笼子层，每层光笼子层包括多个光笼子，每个光笼子具有朝向面板侧的开口，用于与光模块连接，光笼子包括壳体和多个信号针，柔板的一端与多个信号针的尾端电连接，柔板的另一端与一个芯片电连接，即通过柔板实现了光笼子的多个信号针和芯片的电连接，缩短了光模块和芯片的连通路径，减小链路损耗。同时柔板具有较好的弯折性和较高的配线密度，可任意弯折且所占空间小，提升了业务板的集成度，且便于组装，实现业务板的高密连接及简洁化设计，使业务板适用于高密高速传输场景。

Description

一种业务板及通信设备
本申请要求于2021年03月25日提交中国专利局、申请号为202110319527.0、申请名称为“一种业务板及通信设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，特别涉及一种业务板及通信设备。
背景技术
光通信技术已经成为一种低成本以及批量产品化的技术，广泛的应用于交换机互联以及服务器接口等应用中，在光通信技术的应用中，需要用到可插拔的光模块，以此来连接承载数据的光缆至交换机等网络通信设备上。
目前，网络通信设备如交换机或基站等中设置有业务板，业务板包括有印刷电路板(Printed Circuit Board；PCB)、设置在印刷电路板上的芯片和光笼子，其中，光笼子位于印刷电路板的边缘，光笼子与芯片之间电连接，光模块可插拔设置在光笼子的接口上，从而使光模块与芯片之间实现信号连接。具体的，可在光笼子的背侧引出线缆，光笼子可通过线缆与芯片侧进行连接，如在芯片侧通过连接器压接连接，或弹片接触连接等，从而实现光笼子与芯片的电连接，进而实现光模块与芯片之间的电连接。
然而，当光笼子侧接口较密时，引出的线缆较多，集成度较差，组装复杂，且在芯片侧连接时存在弯折半径较大，重量、体积、所占空间以及风阻等较大的问题，导致业务板尺寸较大且性能降低，制约其在高速高密场景中的应用。
发明内容
本申请提供业务板及通信设备，解决了现有的业务板中光笼子侧接口较密时导致业务板的集成度差，且重量、体积、占用空间以及风阻等较大，而不适用于高速高密传输场景中的问题。
本申请的第一方面提供一种业务板，包括：第一印制板、至少一个芯片和至少一层光笼子层，每层所述光笼子层包括多个光笼子，每个所述光笼子具有朝向面板侧的开口，所述开口用于插接一个光模块；
所述业务板还包括柔板，所述光笼子包括壳体和多个信号针，所述柔板的一端与所述多个信号针的尾端电连接，所述柔板的另一端与一个芯片电连接，所述多个信号针的尾端是指所述多个信号针的远离所述光笼子的开口的一端。这样通过柔板就能够实现芯片与光笼子之间的电连接，也即实现芯片与光模块之间的电连接，使信号可从光模块传输至该业务板的芯片上，以实现信号的传输和处理。
一方面，光笼子的多个信号针的尾端直接连接柔板芯片侧实现电连接，与现有光笼子通过连接器与芯片侧的印刷电路板电连接相比，能够避免垂直连通路径，缩短链 路长度，降低了插入损耗和串扰，使业务板更适用于高速传输场景。
另一方面，柔板具有较高的配线密度，整体结构特性较软，具有良好的弯折性能，可任意角度弯折、扭转，实现多层光笼子和芯片之间的非共面连接的同时，提升了业务板的集成度，便于组装，并减小了配高、体积以及占用空间较大等问题的引入，降低了链路插入损耗和串扰，实现业务板的高密连接以及简洁化设计，使业务板能够更好的适用于高密高速传输场景中。
在一种可能的实现方式中，所述多个信号针的尾端均从所述壳体的尾端伸出，所述多个信号针中每一信号针的尾端为第一凸点结构。
柔板可以具有连接部，连接部的板面上可以设置有多个第二凸点结构，多个第二凸点结构可以与对应的多个第一凸点结构接触，并实现电连接，进而实现柔板和光笼子之间的电连接，连接方式简单且便于实现。
在一种可能的实现方式中，所述多个信号针的尾端均从所述壳体的尾端伸出，所述多个信号针中每一信号针的尾端为弹片结构。弹片结构与柔板连接部上的第二凸点结构接触并实现电连接，从而实现柔板和光笼子之间的电连接。
由于弹片结构具有弹性，能够被压缩发生弹性形变，当第二凸点结构与弹片结构抵接并电连接时，可使第二凸点结构对弹片结构进行挤压，使弹片结构处于弹性收缩状态，这样收缩的弹片结构自身具有的弹性恢复力，可以反作用于第二凸点结构，使弹片结构和第二凸点结构接触更加的牢固，提升了弹片结构和第二凸点结构电连接的可靠性，进而保证了光笼子和柔板电连接的可靠性，提升了信号传输的稳定性和质量。
在一种可能的实现方式中，所述多个信号针的尾端均从所述壳体的尾端伸出，所述多个信号针中每一信号针的尾端为一个弹性针，弹性针与柔板连接部上的第二凸点结构接触并实现电连接，从而实现柔板和光笼子之间的电连接。
而弹性针是具有弹簧的弹性组件，可发生弹性形变，在第二凸点结构与弹性针抵接接触时，可以推动弹性针使其发生弹性压缩，弹性针的弹性恢复力会反作用于第二凸点结构，从而保证了第二凸点结构和弹性针间电连接的可靠性，保证光笼子和柔板电连接的可靠性。
在一种可能的实现方式中，所述柔板具有连接部，所述连接部的第一表面朝向所述壳体的尾端，所述连接部的板面上设置有多个第二凸点结构，所述多个第二凸点结构与对应的所述多个信号针的尾端接触且实现电连接。
这样柔板通过其连接部上的第二凸点结构与光笼子的多个信号针尾端接触并实现电连接，即通过抵接接触的方式实现电连接，这种方式具有较高的可拆卸性，易于实现光笼子和柔板之间的解耦，便于装配以及拆卸更换等。
在一种可能的实现方式中，所述多个信号针的尾端均从所述壳体的尾端伸出，所述多个信号针中每一信号针的尾端为鱼眼结构，即通过鱼眼结构与柔板实现电连接。
在一种可能的实现方式中，所述柔板具有连接部，所述连接部的第一表面朝向所述壳体的尾端，所述连接部的板面上设置有多个信号过孔，所述多个鱼眼结构被一对一地压入所述多个信号过孔内。这样就使鱼眼结构与信号过孔接触抵接，并实现鱼眼结构和信号过孔的电连接，进而实现柔板和光笼子之间的电连接。
而由于鱼眼结构具有弹性压接环，当鱼眼结构被一对一压入多个信号过孔内时， 弹性压接环处于弹性收缩状态，弹性压接环的弹性恢复力会反作用于信号过孔，从而使弹性压接环卡设在信号过孔内，保证了柔板和光笼子间电连接的可靠性。
在一种可能的实现方式中，所述多个信号针的尾端均从所述壳体的尾端伸出，所述多个信号针包括第一信号针阵列和第二信号针阵列，所述第一信号针阵列用于向所述芯片发送信号，所述第二信号针阵列用于接收自所述芯片的信号。
在一种可能的实现方式中，所述连接部的第二表面设有加强结构，所述第二表面与所述第一表面相背离。通过加强结构可以提高柔板的强度，保证柔板与光笼子固定连接后，柔板与光笼子之间电接触连接的牢度，提升信号传输的稳定性和质量。
在一种可能的实现方式中，还包括锁紧结构，所述锁紧结构用于紧固所述连接部和对应的所述壳体的尾端。从而通过锁紧结构实现柔板与光笼子的壳体的固定。
在一种可能的实现方式中，还包括锁紧结构，所述锁紧结构用于紧固所述连接部、所述加强结构和对应的所述壳体的尾端。
在一种可能的实现方式中，所述多个信号针的尾端均位于所述壳体内，所述柔板从所述壳体的尾端伸入所述壳体的内部，且与所述多个信号针的尾端电连接。从而实现柔板与光笼子之间的电连接。这样柔板和光笼子具有更好的连接牢度，增加了柔板和光笼子之间电连接的强度，提升连接的可靠性，进而提升信号传输的稳定性和质量。另外，可以进一步缩短信号针到柔板之间的路径，进一步降低链路损耗和串扰。
在一种可能的实现方式中，所述至少一个芯片设置在所述第一印制板上并与所述第一印制板电连接，所述第一印制板上设置有至少一片柔板，所述至少一片柔板通过结合部固定在所述第一印制板上，所述至少一个芯片和所述至少一片柔板均位于所述第一印制板的同一侧，或者分别位于所述第一印制板的两侧；
在所述至少一片柔板仅包括一片柔板时，所述结合部为所述柔板的一部分，所述柔板与所述第一印制板电性连接；
在所述至少一片柔板包括多片柔板时，所述结合部包括所述多片柔板中每一片柔板的一部分，所述结合部与所述第一印制板电连接。
这样柔板与第一印制板电连接，第一印制板与芯片电连接，从而实现了柔板与芯片的电连接，通过柔板就实现了光笼子与芯片的电连接。
在一种可能的实现方式中，所述至少一个芯片设置在所述第一印制板上并与所述第一印制板电连接，所述第一印制板上设置有至少一片柔板；
所述第一印制板包括软硬结合区，所述第一印制板的一部分和所述至少一片柔板的一部分层压形成所述软硬结合区，所述至少一片柔板与所述第一印制板电连接。这样通过混压形成软硬结合区实现至少一片柔板和第一印制板的固定以及电连接，保证了柔板与第一印制板的连接牢度，提升信号传输的稳定性和质量。
在一种可能的实现方式中，所述至少一个芯片包括至少一个芯片元件、与所述至少一个芯片元件电连接件的第二印制板，所述第二印制板设置在所述第一印制板上，所述第二印制板上设置有至少一片柔板，所述至少一片柔板通过结合部固定在所述第二印制板上，所述芯片元件和所述至少一片柔板均位于所述第二印制板的同一侧；
在所述至少一片柔板仅包括一片柔板时，所述结合部为所述柔板的一部分，所述柔板与所述第二印制板电连接；
在所述至少一片柔板包括多片柔板时，所述结合部包括所述多片柔板中每一片柔板的一部分，所述结合部与所述第二印制板电连接。
这样就使柔板直接与芯片的第二印制板电连接，与通过第一印制板实现与芯片之间的电连接相比，能够进一步降低链路损耗和串扰，有助于提升业务板的性能。
在一种可能的实现方式中，所述至少一个芯片包括至少一个芯片元件、与所述至少一个芯片元件电连接件的第二印制板，所述第二印制板设置在所述第一印制板上，所述第二印制板上设置有至少一片柔板；
所述第二印制板包括软硬结合区，所述第二印制板的一部分和所述至少一片柔板的一部分层压形成所述软硬结合区，所述至少一片柔板与所述第二印制板电连接。
这样通过混压形成软硬结合区的方式实现至少一片柔板和第二印制板的固定及电连接，保证了柔板与第二印制板的连接牢度，提升信号传输的稳定性和质量。
本申请的第二方面提供一种通信设备，包括机体和上述任一所述的业务板，所述机体上具有插槽位，所述业务板插设在所述插槽位上。
这样通过包括业务板，该业务板通过柔板实现了芯片和光笼子之间的电连接，能够缩短连通路径，降低了插入损耗和串扰。同时柔板具有良好的弯折性能，以及较高的配线密度，可任意弯折、扭转，所占空间小，实现多层光笼子和芯片之间的非共面连接的同时，提升了业务板的集成度，便于组装，并减小了配高、体积以及占用空间较大等问题的引入，实现业务板的高密连接以及简洁化设计，进而有助于减小通信设备的占用空间，并使通信设备可适用于信号的高速高密传输。
附图说明
图1是本申请实施例提供的一种通信设备的结构示意图；
图2是本申请实施例提供的一种业务板的结构示意图；
图3是本申请实施例提供的一种业务板中光笼子与芯片的连接示意图；
图4是本申请实施例提供的一种光笼子和柔板连接前的结构示意图；
图5是本申请实施例提供的一种插接有光模块的光笼子和柔板连接前的结构示意图；
图6是本申请实施例提供的一种插接有光模块的光笼子和柔板连接前的剖面结构示意图；
图7是本申请实施例提供的一种光笼子的结构示意图；
图8是本申请实施例提供的一种柔板的第一连接部的结构示意图；
图9是本申请实施例提供的一种光笼子和柔板连接前的结构示意图；
图10是本申请实施例提供的一种插接有光模块的光笼子和柔板连接前的剖面结构示意图；
图11是本申请实施例提供的另一种光笼子和柔板连接的结构示意图；
图12是本申请实施例提供的另一种插接有光模块的光笼子和柔板连接前的剖面结构示意图；
图13是本申请实施例提供的又一种光笼子和柔板连接前的结构示意图；
图14是本申请实施例提供的又一种插接有光模块的光笼子和柔板连接前的剖面 结构示意图；
图15是本申请实施例提供的又一种光笼子和柔板连接的结构示意图；
图16是本申请实施例提供的又一种插接有光模块的光笼子和柔板连接的剖面结构示意图；
图17是本申请实施例提供的又一种业务板中光笼子和芯片的连接结构示意图；
图18是本申请实施例提供的一种第一印制板与柔板连接的结构示意图；
图19是本申请实施例提供的另一种第一印制板与柔板连接的结构示意图；
图20是本申请实施例提供的又一种第一印制板与柔板连接的结构示意图；
图21是本申请实施例提供的一种第二印制板与柔板连接的结构示意图；
图22是本申请实施例提供的另一种第二印制板与柔板连接的结构示意图。
附图标记说明：
1-通信设备；                  100-业务板；             10-柔板；
10a-第一凸点阵列；            10b-第二凸点阵列；       11-连接部；
111-第二凸点结构；            12-安装孔；              13-结合部；
14-软硬结合区；               20-第一印制板；          30-芯片；
31-芯片元件；                 32-第二印制板；          40-光笼子；
40a-第一信号针阵列；          40b-第二信号针阵列；     41-壳体；
411-接口；                    42-信号针；              43-第一凸点结构；
44-弹片结构；                 441-本体端；             442-弯折端；
45-弹性针；                   451-外筒；               452-内筒；
46-鱼眼结构；                 461-插入端；             462-连接端；
463-弹性压接环；              200-光模块；             300-机体。
具体实施方式
本申请的实施方式部分使用的术语仅用于对本申请的具体实施例进行解释，而非旨在限定本申请。
本申请实施例提供一种业务板及通信设备，其中，该通信设备可以是交换机、路由器、网络传送设备、宽带接入设备等任何需要与光模块进行连接的通信设备。
参见图1所示，该通信设备1可以包括机体300和业务板100，具体的，在机体300上可以具有若干个插槽位，业务板100可以插设在插槽位上，其中，机体300上设有的插槽位可以为多个，每个插槽位可以容纳一个业务板100，每个业务板100上可以具有至少一层光笼子层，每层光笼子层可以包括有多个光笼子40，每个光笼子40具有朝向面板侧的开口411，该开口411用于插接一个光模块200。
其中，参见图2所示，业务板100包括柔板10、第一印制板20、至少一个芯片30和至少一层光笼子层，其中，芯片30和光笼子层可以均位于第一印制板20上，光笼子层可以设置在第一印制板20的一侧，并位于第一印制板20的边缘，光笼子40的用于插接光模块200的端面为业务板100的面板侧。
第一印制板20可以是印制电路板(Printed circuit boards；PCB)，作为整个业务板的支撑。柔板10可以是以聚酰亚胺或聚酯薄膜为基材制成的一种可挠性印刷电路板， 其具有配线密度高、重量轻、厚度薄等特点。
本申请实施例中，以业务板100包括有多层光笼子层为例，每层光笼子层包括有多个光笼子40，每个光笼子40朝向面板侧的开口411对应插接一个光模块200，从而使光模块200与光笼子40电连接，使信号可以从光模块200传递至光笼子40。
结合图3所示，柔板10的一端与光笼子40电连接，具体的，光笼子40可以包括有壳体41和多个信号针42(参照图6所示)，柔板10的一端可以与多个信号针42的尾端电连接，实现了光笼子40和柔板10的电连接，使信号可从光笼子40传递至柔板10。其中，多个信号针42的尾端指多个信号针42远离光笼子40的开口411的一端。而柔板10的另一端与一个芯片30电连接，从而使信号从柔板10传递至芯片30，以进行数据信号的处理。
这样通过柔板10就能够实现芯片30与光笼子40之间的电连接，也即实现芯片30与光模块200之间的电连接，使信号可从光模块200传输至该业务板100的芯片30上，以实现信号的传输和处理。而光笼子40的多个信号针42的尾端直接连接柔板10与芯片侧实现电连接，与现有光笼子40通过连接器与芯片侧的印刷电路板电连接相比，能够避免垂直连通路径，缩短链路长度，降低了插入损耗和串扰，使业务板100更适用于高速传输场景。
同时，柔板10具有较高的配线密度，且整体结构特性较软，具有良好的弯折性能，可任意角度弯折、扭转，实现多层光笼子40和芯片30之间的非共面连接的同时，提升了业务板的集成度，便于组装，并减小了配高、体积以及占用空间较大等问题的引入，降低了链路插入损耗和串扰，实现业务板100的高密连接以及简洁化设计，使业务板100能够更好的适用于高密高速传输场景中。
其中，参见图4所示，光笼子40的壳体41上开设有用于插接光模块的开口411，结合图6所示，多个信号针42的首端(与尾端相背的一端)可以位于该开口411内，并与插接在开口411内的光模块200电连接，具体的，如多个信号针42的首端可以形成卡爪状结构，光模块200插入开口411内后，可以插入该卡爪状结构内，与多个信号针42卡接接触并实现电连接，从而实现光模块200与光笼子40的电连接。
以下结合附图以及具体的实施方式，对光笼子与柔板的连接方式进行详细的说明。
光笼子40的多个信号针42的尾端可以均从壳体41的尾端伸出，使柔板10与多个信号针42的尾端电连接，从而实现柔板10与光笼子40之间的电连接。
具体的，在一种可能的实施方式中，参见图5和图6所示，多个信号针42的尾端均从壳体41的尾端伸出，且多个信号针42的尾端为第一凸点结构43。
柔板10具有连接部11，连接部11的第一表面朝向壳体41的尾端，连接部11的板面上设置有多个第二凸点结构111，多个第二凸点结构111可以与对应的光笼子40的多个信号针42的尾端接触，并实现电连接。即多个第二凸点结构111与对应的多个第一凸点结构43接触，并实现第二凸点结构111与第一凸点结构43的电连接。如第一凸点结构43和第二凸点结构111实现硬接触，从而使第一凸点结构43和第二凸点结构111电连接，进而实现柔板10和光笼子40之间的电连接，连接方式简单且便于实现。
其中，多个信号针42的尾端可以伸出至壳体41外约1mm，形成第一凸点结构43，即第一凸点结构43可以是信号针42的一部分。第二凸点结构111可以是由柔板10上凸起的多个焊盘组成，焊盘的形状可以是长方形，其长度可以约为0.5mm，宽度可以约为0.6mm。或者，焊盘的形状也可以是圆形，其直径可以约为0.6mm。
第二凸点结构111的表面可以镀有金属层，如采用镀金、镀银等加工工艺处理，这样可以防止第二凸点结构111表面锈蚀，影响第一凸点结构43与第二凸点结构111的可靠性，从而保证柔板10和光笼子40之间电连接的可靠性，提升信号传输的稳定性和质量。
多个信号针42可以为金属导体件，具有一定的弹性形变，这样在使第一凸点结构43和第二凸点结构111抵接接触时，可以使信号针42被压缩发生一定的弹性形变，有助于提升第一凸点结构43和第二凸点结构111之间的接触牢度，保证第一凸点结构43和第二凸点结构111的连接可靠性，进而保证了光笼子40和柔板10电连接的可靠性，提升了信号传输的稳定性和质量。
应当理解的是，光模块200上具有信号发送端(Transmitter；TX)和信号接收端(Receiver；RX)，因此，参见图7所示，在多个信号针42从壳体41的尾端伸出时，多个信号针42可以包括第一信号针阵列40a和第二信号针阵列40b，第一信号针阵列40a用于向芯片30发送信号，第二信号针阵列40b用于接收自芯片30的信号。
相应的，参见图8所示，在柔板10的连接部11上，多个第二凸点结构111可以包括第一凸点阵列10a和第二凸点阵列10b，第一凸点阵列10a与第一信号针阵列40a对应且电连接，第二凸点阵列10b与第二信号针阵列40b对应且电连接，第一信号针阵列40a可以与光模块200的信号发送端电连接，这样就使光模块200上的信号可以经过光笼子40的第一信号针阵列40a传输至柔板10的第一凸点阵列10a。第二信号针阵列40b可以与光模块200的信号接收端电连接，信号也可以从柔板10的第二凸点阵列10b发送传输至光笼子40的第二信号针阵列40b，并发送给光模块200，进而实现信号在光模块200和芯片30之间的传输。
其中，柔板10可以是三层板结构，中间为信号层，在柔性板10上走差分线，差分线一端与第二凸点结构111电连接，差分线另一端用于与芯片30电连接，以实现信号在光笼子40和芯片30之间的传输。其中，参见图8所示，横向相邻的两个第二凸点结构的中心间距可以约为1.0mm，纵向相邻的两个第二凸点结构的中心间距约为2.0mm，以避免纵向上两个信号传输通道之间的信号干扰。
柔板10的连接部11可以与光笼子40的壳体41尾端固定连接，连接部11可以通过粘接、卡接或螺纹连接等方式实现与壳体41尾端的固定。例如该业务板10还可以包括有锁紧结构，锁紧结构用于紧固连接部和对应的光笼子的尾端，如参见图8所示，在连接部11上可以开设有安装孔12，锁紧结构可以是螺钉、销钉等，安装孔12可以是螺纹孔或光孔等，可以使锁紧结构穿过安装孔12与光笼子40固定连接，从而通过锁紧结构和安装孔12实现了柔板10和光笼子40的连接固定。
其中，当柔板10的结构强度较为柔软，将柔板10与光笼子40固定连接时，柔板10很容易发生形变，使柔板10的第二凸点结构111与光笼子40的第一凸点结构43易发生接触不良的问题，降低电连接的可靠性。
本申请实施例中，在连接部11的第二表面还设有加强结构，其中，第二表面与第一表面相背离，该加强结构可以为加强片，在使用锁紧结构紧固连接部和光笼子尾端时，也可通过锁紧结构使加强结构、连接部11和光笼子40的壳体41的尾端固定。通过加强结构可以提高柔板10的强度，保证柔板10与光笼子40固定连接后，第二凸点结构111和第一凸点结构43的接触牢度，提升信号传输的稳定性和质量。
应当理解的是，可以根据柔板的自身结构强度选择设定加强结构，如当柔板10的自身结构强度较好时，可不设置加强结构。
在另一种可能的实施方式中，参见图9所示，多个信号针42的尾端均从壳体41的尾端伸出，且多个信号针42中每个信号针42的尾端为弹片结构44，即每个信号针42的尾端具有一个弹片结构44，柔板10的连接部11的板面上设置有多个第二凸点结构111，多个第二凸点结构111可以与对应的多个弹片结构44接触，并实现第二凸点结构111与弹片结构44的电连接，进而实现柔板10和光笼子40之间的电连接。
其中，在弹片结构44和第二凸点结构111接触时，由于弹片结构44具有弹性，能够被压缩发生弹性形变，当柔板10与壳体41的尾端锁紧固定，并使第二凸点结构111与弹片结构44抵接并电连接时，可使第二凸点结构111对弹片结构44进行挤压，使弹片结构44处于弹性收缩状态，这样收缩的弹片结构44自身具有的弹性恢复力，可以反作用于第二凸点结构111，使弹片结构44和第二凸点结构111接触更加的牢固，提升了弹片结构44和第二凸点结构111电连接的可靠性，进而保证了光笼子40和柔板10电连接的可靠性，提升了信号传输的稳定性和质量。
参见图10所示，弹片结构44可以包括有本体端441和与本体端441连接的弯折端442，本体端441与对应的多个信号针42固定且电连接，至少部分弯折端442伸出壳体41外，第二电凸点结构111与弯折端442电性接触。具体的，弹片结构44可以伸出壳体41外约1mm。
弹片结构44可以为金属的导体件，弯折后形成的弯折端442具有较大的弹性形变量，从而实现在第二凸点结构111与弹片结构44接触时，可挤压弯折端442使弹片结构44变形收缩，进而保证了第二凸点结构111和弹片结构44间电连接的可靠性。
在又一种可能的实施方式中，参见图11所示，多个信号针42的尾端均从壳体41的尾端伸出，每个信号针42的尾端为一个弹性针，如图11中所示，每一信号针42的尾端具有一个弹性针45，柔板10的连接部11的板面上设置有多个第二凸点结构111，多个第二凸点结构111可以与对应的多个弹性针45接触，并实现第二凸点结构111与弹性针45的电连接，进而实现柔板10和光笼子40之间的电连接。
其中，参见图12所示，弹性针45是一种具有弹簧的可伸缩弹性组件，可以包括外筒451和套设在外筒451内的内筒452，内筒452的一端伸出外筒451外，内筒452的另一端通过弹簧件与外筒451连接，使内筒452可以沿着外筒451的轴线方向发生相对的滑动，这样就使内筒452能够发生朝向或背离弹性件的移动，也即内筒452相对外筒451发生沿轴线方向的伸缩移动。
至少部分的内筒452可以伸出至壳体41外，具体的，弹性针45可以伸出壳体41外约0.5mm，如当内筒452相对外筒451完全伸展时，内筒452可以伸出至壳体41外约0.5mm。第二凸点结构111可与内筒452电性接触。而在第二凸点结构111与内 筒452抵接接触时，可以推动内筒452朝向弹簧件移动，使弹簧件被压缩，弹簧件的弹性恢复力会反作用于第二凸点结构111，从而保证了第二凸点结构111和弹性针45间电连接的可靠性。
在又一种可能的实施方式中，结合图13和图14所示，连接部11的板面上可以设置有多个信号过孔112，多个信号针42的尾端均从壳体41伸出，且多个信号针42中每一个信号针的尾端可以为鱼眼结构，即在每一个信号针42的尾端具有鱼眼结构46，多个鱼眼结构46被一对一地压入多个信号过孔112内，鱼眼结构46与信号过孔112内壁接触抵接，并实现鱼眼结构46和信号过孔112的电连接，进而实现柔板10和光笼子40之间的电连接。
而鱼眼结构46为具有弹性压接部的一种连接结构，鱼眼结构46压入信号过孔112内，便于鱼眼结构46和信号过孔112的连接，便于装配。同时，压入信号过孔112的鱼眼结构46，其弹性压接部被压缩产生的回弹力作用于信号过孔112，可以保证鱼眼结构46与信号过孔112间电连接的可靠性，也即保证了柔板10与光笼子40电连接的可靠性。
具体的，如其弹性压接部可以为弹性压接环，参见图14所示，鱼眼结构46可以包括有插入端461、连接端462和弹性压接环463，弹性压接环463位于插入端461和连接端462之间，弹性压接环463分别与插入端461和连接端462连接，弹性压接环463可以发生径向的弹性收缩形变。至少插入端461和弹性压接环463伸出至壳体41外，连接端462可以部分伸出至壳体41外，具体的，鱼眼结构46可以伸出壳体41外约1mm。
连接端462与对应的多个信号针42连接，从而使鱼眼结构46与对应的信号针42电连接。结合图13所示，插入端461和弹性压接环463可以伸入信号过孔112内，且当弹性压接环463伸入电连接过孔内后，弹性压接环463被挤压处于弹性收缩状态，弹性压接环463的外壁与信号过孔112内壁抵接接触，从而使鱼眼结构46与信号过孔112电连接。
同时，由于弹性压接环463处于弹性收缩状态，弹性压接环463的弹性恢复力会反作用于信号过孔112，从而使弹性压接环463卡设在信号过孔112内，保证了柔板10和光笼子40间电连接的可靠性。
其中，插入端461的横截面宽度和信号过孔112的孔径大小可以均小于弹性压接环463的外径宽度，这样就能够使弹性压接环463在伸入信号过孔112内后处于弹性收缩状态。
参见图14所示，插入端461背离弹性压接环463的一端的截面宽度，可以沿着朝向弹性压接环463的方向逐渐增加，以使插入端461背离弹性压接环463的一端呈尖头状，这样插入端461可以起到过渡的作用，便于弹性压接环463压入信号过孔112内，实现鱼眼结构46和信号过孔112的电连接，便于装配。
本申请实施例中，使多个信号针42的尾端从壳体41的尾端伸出，并在柔板10的连接部11上设置多个第二凸点结构111或信号过孔112，通过多个信号针42的尾端与第二凸点结构111或信号过孔112的连接来实现柔板10与光笼子40的电连接，一方面，光笼子40尾端伸出的信号针42直接与柔板10的连接部11实现电连接，能 够避免垂直连通路径，降低了插入损耗和串扰。
另一方面，多个信号针42与对应的第二凸点结构111直接接触，或者是通过将多个信号针42可以压入对应的信号过孔112内实现电连接，这种方式具有较高的可拆卸性，易于实现光笼子40和柔板10之间的解耦，便于装配以及拆卸更换等。
光笼子40的多个信号针42的尾端也可以均位于壳体41内，参见图15和图16所示，柔板10可以从光笼子40的壳体41尾端伸入壳体41内部，并与多个信号针42的尾端电连接，从而实现柔板10与光笼子40之间的电连接。这样柔板10和光笼子40具有更好的连接牢度，增加了柔板10和光笼子40之间电连接的强度，提升连接的可靠性，进而提升信号传输的稳定性和质量。另外，可以进一步缩短信号针42到柔板10之间的路径，进一步降低链路损耗和串扰。
其中，柔板10可以与光笼子40一体成型，具体的，可以通过两次注塑的方式形成，第一次注塑先将多个信号针42预定位，并将多个信号针42与柔板10通过焊盘焊接的方式固定到一起，然后进行第二次注塑，将多个信号针42、柔板10和壳体41一体成型。
以下结合附图以及具体的实施方式，对柔板与芯片的连接方式进行详细的说明。
本申请实施例中，参见图17所示，至少一个芯片30设置在第一印制板20上，并与第一印制板20电连接。
在一种可能的实施方式中，柔板10可以与第一印制板20电连接。
具体的，如在第一印制板20上可以设置有至少一片柔板10，参见图17所示，至少一片柔板10通过结合部13固定在第一印制板20上。其中，结合部13可以通过焊接、压接、凸点、弹片或者是插座连接(Socket)等方式设置在第一印制板20上。
具体的，参见图18所示，至少一个芯片30和至少一片柔板10可以位于第一印制板20的两侧，如可以分别位于第一印制板20相对的两个侧面上。至少一片柔板10可以位于至少一个芯片30的正下方或斜下方位置处。
参见图19所示，至少一个芯片30和至少一片柔板10与可以均位于第一印制板20的同一侧，这样便于连接，同时也有助于减小业务板100的配高。
其中，至少一片柔板可以仅包括一片柔板10，或者，也可以包括多片柔板10，当至少一片柔板为一片柔板10时，结合部13为柔板10的一部分，柔板10与第一印制板20电连接，第一印制板20与芯片30电连接，从而实现了柔板10与芯片30的电连接，也即通过柔板10实现了光笼子40与芯片30的电连接。
此时，可在结合部13与第一印制板10相背的一侧上设置有加强结构，通过该加强结构可以提高柔板10的强度，保证柔板10与第一印制板10的连接牢度。
当至少一片柔板包括多片柔板10时，结合部13包括多片柔板中每一片柔板10的一部分，即每一片柔板10混压形成结合部13，结合部13与第一印制板10电连接，从而实现柔板10与芯片30的电连接。
且当至少一片柔板包括多片柔板10时，至少部分相邻的两片柔板10之间可以具有间隙，这样柔板10在满足高密连接需求的同时，柔板10之间的间隙可以便于柔板10的弯折，有助于进一步减小业务板100的体积及占用空间，降低风阻，进一步提升业务板100的性能。
结合部13可以是柔板10混压部分硬板后形成的软硬结合板，这样就使结合部13具有较高的强度，提高了柔板10与芯片30的连接可靠性，提升信号传输的稳定性和质量。相应的，柔板10的连接部11也可以是软硬结合板，以进一步提高柔板10与光笼子40的连接牢度。
或者，参见图20所示，第一印制板20可以包括有软硬结合区14，第一印制板20的一部分和至少一片柔板10的一部分层压形成软硬结合区14，并且至少一片柔板10与第一印制板20电连接。也即至少一片柔板10的一部分和第一印制板20的一部分混压成为一体，并实现至少一片柔板10与第一印制板20的电连接，从而使柔板10与芯片30实现电连接。
通过混压形成软硬结合区14实现至少一片柔板10和第一印制板20的固定以及电连接，保证了柔板10与第一印制板20的连接牢度，提升信号传输的稳定性和质量。
在另一种可能的实施方式中，柔板10可以与至少一个芯片30的第二印制板32电连接。
具体的，参见图21所示，至少一个芯片30可以包括有至少一个芯片元件31和第二印制板32，第二印制板32用于封装至少一个芯片元件31，第二印制板32可以设置在第一印制板20上，芯片元件31与第二印制板32电连接，以实现芯片元件31与外电路的电连接。
其中，第二印制板32上可以设置有至少一片柔板10，至少一片柔板10通过结合部13固定在第二印制板32上，具体的，参见图21所示，至少一个芯片元件和至少一片柔板均位于第一印制板的同一侧。
其中，结合部13可以通过焊接、凸点或弹片连接等方式设置在第二印制板32上。
具体的，至少一片柔板可以仅包括一片柔板10，结合部13为柔板10的一部分，柔板10与第二印制板32电连接，从而使芯片元件31与柔板10电连接，进而实现了芯片30与光模块200之间的电连接，使信号可以在光模块200和芯片30之间进行传输。
此时，可在结合部13与第二印制板32相背的一侧上设置加强结构，这样可以提高柔板10的强度，保证柔板10与第二印制板32的连接牢度，提升信号传输的稳定性和质量。
参见图21所示，至少一片柔板也可以包括有多片柔板10，结合部13包括多片柔板10中每一片柔板10的一部分，结合部13与第二印制板32电连接，从而实现了芯片30与柔板10的电连接。
或者，参见图22所示，第二印制板32可以包括有软硬结合区14，第二印制板32的一部分和至少一片柔板10的一部分层压形成该软硬结合区14，并使至少一片柔板10与第二印制板32电连接。也即至少一片柔板10的一部分和第二印制板32的一部分混压成为一体，并实现至少一片柔板10与第二印制板32的电连接，从而使柔板10与芯片30实现电连接。
这样通过混压形成软硬结合区14的方式实现至少一片柔板10和第二印制板32的固定及电连接，保证了柔板10与第二印制板32的连接牢度，提升信号传输的稳定性和质量。
本申请实施例中，使柔板10直接与芯片30的第二印制板32电连接，与通过第一印制板20实现与芯片30之间的电连接相比，能够进一步降低链路损耗和串扰，有助于提升业务板100的性能。
在本申请实施例的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应作广义理解，例如，可以是固定连接，也可以是通过中间媒介间接相连，可以是两个元件内部的相连或者两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请实施例中的具体含义。
本申请实施例的说明书中的术语“第一”、“第二”、“第三”、“第四”等(如果存在)是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。
最后应说明的是：以上各实施例仅用以说明本申请实施例的技术方案，而非对其限制；尽管参照前述各实施例对本申请实施例进行了详细的说明，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，或者对其中部分或者全部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申请实施例各实施例技术方案的范围。

Claims (16)

  1. 一种业务板，其特征在于，包括：第一印制板、至少一个芯片和至少一层光笼子层，所述至少一个芯片设置在所述第一印制板上，每层所述光笼子层包括多个光笼子，每个所述光笼子具有朝向面板侧的开口，所述开口用于插接一个光模块；
    所述业务板还包括柔板，所述光笼子包括壳体和多个信号针，所述柔板的一端与所述多个信号针的尾端电连接，所述柔板的另一端与一个芯片电连接，所述多个信号针的尾端是指所述多个信号针的远离所述光笼子的开口的一端。
  2. 根据权利要求1所述的业务板，其特征在于，所述多个信号针的尾端均从所述壳体的尾端伸出，所述多个信号针中每一信号针的尾端为第一凸点结构。
  3. 根据权利要求1所述的业务板，其特征在于，所述多个信号针的尾端均从所述壳体的尾端伸出，所述多个信号针中每一信号针的尾端为弹片结构。
  4. 根据权利要求1所述的业务板，其特征在于，所述多个信号针的尾端均从所述壳体的尾端伸出，所述多个信号针中每一信号针的尾端为一个弹性针。
  5. 根据权利要求2至4任一所述的业务板，其特征在于，所述柔板具有连接部，所述连接部的第一表面朝向所述壳体的尾端，所述连接部的板面上设置有多个第二凸点结构，所述多个第二凸点结构与对应的所述多个信号针的尾端接触且实现电连接。
  6. 根据权利要求1所述的业务板，其特征在于，所述多个信号针的尾端均从所述壳体的尾端伸出，所述多个信号针中每一信号针的尾端为鱼眼结构。
  7. 根据权利要求6所述的业务板，其特征在于，所述柔板具有连接部，所述连接部的第一表面朝向所述壳体的尾端，所述连接部的板面上设置有多个信号过孔，所述多个鱼眼结构被一对一地压入所述多个信号过孔内。
  8. 根据权利要求1所述的业务板，其特征在于，所述多个信号针的尾端均从所述壳体的尾端伸出，所述多个信号针包括第一信号针阵列和第二信号针阵列，所述第一信号针阵列用于向所述芯片发送信号，所述第二信号针阵列用于接收自所述芯片的信号。
  9. 根据权利要求5或7所述的业务板，其特征在于，所述连接部的第二表面设有加强结构，所述第二表面与所述第一表面相背离。
  10. 根据权利要求5或7所述的业务板，其特征在于，还包括锁紧结构，所述锁紧结构用于紧固所述连接部和对应的所述壳体的尾端。
  11. 根据权利要求1所述的业务板，其特征在于，所述多个信号针的尾端均位于所述壳体内，所述柔板从所述壳体的尾端伸入所述壳体的内部，且与所述多个信号针的尾端电连接。
  12. 根据权利要求1至11任一项所述的业务板，其特征在于，所述至少一个芯片设置在所述第一印制板上并与所述第一印制板电连接，所述第一印制板上设置有至少一片柔板，所述至少一片柔板通过结合部固定在所述第一印制板上，所述至少一个芯片和所述至少一片柔板均位于所述第一印制板的同一侧，或者分别位于所述第一印制板的两侧；
    在所述至少一片柔板仅包括一片柔板时，所述结合部为所述柔板的一部分，所述柔板与所述第一印制板电性连接；
    在所述至少一片柔板包括多片柔板时，所述结合部包括所述多片柔板中每一片柔板的 一部分，所述结合部与所述第一印制板电连接。
  13. 根据权利要求1至11任一项所述的业务板，其特征在于，所述至少一个芯片设置在所述第一印制板上并与所述第一印制板电连接，所述第一印制板上设置有至少一片柔板；
    所述第一印制板包括软硬结合区，所述第一印制板的一部分和所述至少一片柔板的一部分层压形成所述软硬结合区，所述至少一片柔板与所述第一印制板电连接。
  14. 根据权利要求1至11任一项所述的业务板，其特征在于，所述至少一个芯片包括至少一个芯片元件、与所述至少一个芯片元件电连接件的第二印制板，所述第二印制板设置在所述第一印制板上，所述第二印制板上设置有至少一片柔板，所述至少一片柔板通过结合部固定在所述第二印制板上，所述芯片元件和所述至少一片柔板均位于所述第二印制板的同一侧；
    在所述至少一片柔板仅包括一片柔板时，所述结合部为所述柔板的一部分，所述柔板与所述第二印制板电连接；
    在所述至少一片柔板包括多片柔板时，所述结合部包括所述多片柔板中每一片柔板的一部分，所述结合部与所述第二印制板电连接。
  15. 根据权利要求1至11任一项所述的业务板，其特征在于，所述至少一个芯片包括至少一个芯片元件、与所述至少一个芯片元件电连接件的第二印制板，所述第二印制板设置在所述第一印制板上，所述第二印制板上设置有至少一片柔板；
    所述第二印制板包括软硬结合区，所述第二印制板的一部分和所述至少一片柔板的一部分层压形成所述软硬结合区，所述至少一片柔板与所述第二印制板电连接。
  16. 一种通信设备，其特征在于，包括机体和上述权利要求1-15任一所述的业务板，所述机体上具有插槽位，所述业务板插设在所述插槽位上。
PCT/CN2022/079878 2021-03-25 2022-03-09 一种业务板及通信设备 WO2022199381A1 (zh)

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TW201421827A (zh) * 2012-11-16 2014-06-01 Frank Ma 傳輸接頭
CN104105993A (zh) * 2012-02-13 2014-10-15 奥林匹斯冬季和Ibe有限公司 用于视频内窥镜的电连接件、视频内窥镜和在视频内窥镜中产生电连接的方法
CN204331098U (zh) * 2014-12-31 2015-05-13 中航海信光电技术有限公司 一种多路并行光组件
CN106410458A (zh) * 2016-11-24 2017-02-15 陕西千山航空电子有限责任公司 一种带有四矩形连接器的刚挠板免布线组件
CN111817088A (zh) * 2020-05-12 2020-10-23 番禺得意精密电子工业有限公司 电连接器组件

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CN104105993A (zh) * 2012-02-13 2014-10-15 奥林匹斯冬季和Ibe有限公司 用于视频内窥镜的电连接件、视频内窥镜和在视频内窥镜中产生电连接的方法
TW201421827A (zh) * 2012-11-16 2014-06-01 Frank Ma 傳輸接頭
CN204331098U (zh) * 2014-12-31 2015-05-13 中航海信光电技术有限公司 一种多路并行光组件
CN106410458A (zh) * 2016-11-24 2017-02-15 陕西千山航空电子有限责任公司 一种带有四矩形连接器的刚挠板免布线组件
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