WO2011029370A1 - 一种光模块及网络设备 - Google Patents

一种光模块及网络设备 Download PDF

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Publication number
WO2011029370A1
WO2011029370A1 PCT/CN2010/076478 CN2010076478W WO2011029370A1 WO 2011029370 A1 WO2011029370 A1 WO 2011029370A1 CN 2010076478 W CN2010076478 W CN 2010076478W WO 2011029370 A1 WO2011029370 A1 WO 2011029370A1
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WO
WIPO (PCT)
Prior art keywords
optical module
light
circuit board
module
indicator
Prior art date
Application number
PCT/CN2010/076478
Other languages
English (en)
French (fr)
Inventor
郭蓥
徐晓东
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
Publication of WO2011029370A1 publication Critical patent/WO2011029370A1/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
    • 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
    • G02B6/4283—Electrical aspects with electrical insulation means

Definitions

  • the present invention relates to the field of communications devices, and in particular, to an optical module and a network device. Background technique
  • Optical modules are important components in the field of optical fiber communication, including small pluggable optical transceiver modules.
  • SFP Small l 1 Form-factor Pluggable Opt ica l Transceiver Module
  • SFP+ 10G small pluggable optical transceiver module XFP (10 Gigabi t Sma l l Form Factor Pluggable Module).
  • the standard optical module has no built-in indicator. In actual use, the indicator corresponding to the optical module must be used to indicate the status of the optical module for user convenience. For example, in an Ethernet application, there is typically a connection indicator (l ink) that indicates the current link status. The light is always on, indicating that the connection is successful (l ink ok), the light is off, the connection is failed (l ink fa i l ), and the light flashes to indicate that the port has traffic.
  • l ink connection indicator
  • the indicator light is placed close to the optical module.
  • the separate placement of optical modules and indicators reduces the port density of the network device.
  • the effective height of the 6-inch slot pitch is 40.6 mm
  • the height of one SFP module 101 is about 12 mm (considering the insertion and removal interval).
  • a 3-row SFP optical module can be placed, that is, a maximum of 72 ports can be supported.
  • the dual-row SFP optical module 101 can be placed, and only up to 48 ports can be supported. It can be seen that placing the indicator light on the handle bar does not maximize the port density.
  • port density is an important indicator of device performance. By placing more ports per unit area, the equipment cost can be reduced, thereby reducing the initial input cost of the user. At the same time, the space occupied by the device is small, and the power consumption per unit is also reduced, thereby reducing the user's equipment room rent, electricity cost and the like. If you want to increase the port density If the indicator is not placed, the status of the port cannot be obtained intuitively.
  • the utility model provides an optical module, which comprises: a printed circuit board, in order to improve the port density of the network device, reduce the cost and unit power consumption of the device, and realize flexible control of the integrated indicator state of the optical module.
  • a printed circuit board in order to improve the port density of the network device, reduce the cost and unit power consumption of the device, and realize flexible control of the integrated indicator state of the optical module.
  • the printed circuit board is connected to the flexible circuit board
  • the flexible circuit board leads a connection line of the indicator light from the printed circuit board
  • the indicator light is located inside the optical module, and is connected to the printed circuit board through a connection line drawn from the flexible circuit board to indicate the state of the optical module.
  • the embodiment of the present invention further provides a network device, including an optical module, where the optical module includes:
  • the printed circuit board is connected to the flexible circuit board
  • the flexible circuit board leads a connection line of the indicator light from the printed circuit board
  • the indicator light is located inside the optical module, and is connected to the printed circuit board through a connection line drawn from the flexible circuit board to indicate the state of the optical module.
  • the optical module may further include: a light guiding column and a panel; the light guiding column is connected to the indicator light to derive light emitted by the indicator light; the light guiding column is connected to the panel to fix the guiding The position of the light column.
  • the position of the light guide bar may be close to the bottom of the optical module, or close to the left side of the optical module, or close to the left side of the optical module, or near the top of the optical module.
  • the optical module may further include a corresponding plurality of indicator lights and a plurality of light guide columns.
  • the optical module may further include: a light emitting submodule, a light receiving submodule; the light emitter The module is placed in the optical module in parallel with the light receiving submodule; the indicator light is located in a space between the light emitting submodule and the light receiving submodule near the bottom of the optical module.
  • the optical module and the network device provided by the embodiment of the present invention lead the indicator light from the lower side of the PCB of the optical module through the flexible circuit board, without affecting the insertion and removal of the optical module, so that the network device can indicate the light without an additional indicator light.
  • the state of the module saves the area of the network device panel, increases the port density of the network device, and reduces the cost and unit power consumption of the network device.
  • FIG. 1 is a schematic diagram of port placement of a router board in the prior art
  • FIG. 1 (a) is a front elevational view of an optical module according to an embodiment of the present invention
  • FIG. 1(b) is a side view showing an optical module according to an embodiment of the present invention.
  • FIG. 2(c) is a top perspective view of an optical module according to an embodiment of the present invention.
  • 2(d) is a connection diagram of a PCB board and a flexible circuit board of an optical module according to an embodiment of the present invention
  • Figure 3 (a) is a front view of another optical module according to an embodiment of the present invention
  • Figure 3 (b) is a side view of another optical module according to an embodiment of the present invention
  • Figure 3 (c) Is a top perspective view of another optical module according to an embodiment of the present invention.
  • an embodiment of the present invention provides an optical module, including: a printed circuit board PCB201, a flexible circuit board 205, The indicator light 203, the light emission sub-module 206, the light receiving sub-module 207, and the panel 211.
  • FIG. 2(d) it is a connection diagram of a PCB board and a flexible board flexible circuit board of an optical module according to an embodiment of the present invention, and the PCB 201 is connected to the flexible circuit board 205; the flexible circuit board 205 includes an indicator cable; the flexible circuit board 205 leads the indicator cable from the PCB 201; as shown in FIG. 2(a), FIG.
  • the indicator 203 A connection line drawn through the flexible circuit board 205 is connected to the PCB 201 to indicate the state of the optical module.
  • the light emitting sub-module is placed in the optical module in parallel with the light receiving sub-module; the indicator light 203 can be placed in the light emitting sub-module 206 (Transmitter Optical Subassembly; T0SA)
  • a space near the bottom of the optical module in the middle of the Receiver Optical Subassembly ( ROSA) is fixed on the internal support surface 209 to make full use of the space between the light emitting sub-module 206 and the light receiving sub-module 207 near the bottom of the optical module.
  • the optical module further includes a light-guiding column 204, and the light-guiding column 204 is connected to the indicator light 203 to derive the light emitted by the indicator light.
  • the light guide bar 204 is connected to the panel 211 to fix the position of the light guide column; the light guide bar 204 can be embedded in the groove below the light module.
  • the installation position of the light guide bar 204 includes, but is not limited to, near the bottom of the optical module, near the left side of the optical module, near the left side of the optical module, near the top of the optical module, and the like.
  • the optical module of the embodiment can be implemented as a small pluggable optical transceiver module SFP or a new small pluggable optical transceiver module SFP+ or a 10G small pluggable optical transceiver module XFP.
  • the embodiment of the invention further provides a network device, where the network device comprises: a printed circuit board PCB20 flexible circuit board 205, indicator light 203, light emitting sub-module 206, light receiving sub-module 207, and panel 211.
  • FIG. 2(d) it is a connection diagram of a PCB board and a flexible board flexible circuit board of an optical module according to an embodiment of the present invention, and the PCB 201 is connected to the flexible circuit board 205; the flexible circuit board 205 includes an indicator cable; the flexible circuit board 205 leads the indicator cable from the PCB 201; as shown in FIG. 2 (a), FIG. 2 (b), and FIG.
  • the indicator light 203 A connection line located inside the optical module and drawn through the flexible circuit board 205 is connected to the PCB 201 to indicate the state of the optical module.
  • the light emitting sub-module is placed inside the optical module in parallel with the light receiving sub-module; the indicator light 203 can be placed in the light emitting sub-module 206 (Transmi t ter Opt i Ca l Suba s semb ly; T0SA ) and the light receiving sub-module 207 (Receiver Opt i ca l Suba s semb ly; ROSA) in the middle of the space near the bottom of the optical module, fixed on the internal support surface 209, in order to make full use of the light emitter
  • the module 206 and the light receiving sub-module 207 are close to the space at the bottom of the optical module to avoid affecting the insertion and removal of the light-emitting sub-module 206 and the light-receiving sub-module
  • the optical module further includes a light guiding column 204, the light guiding column 204 and the
  • the indicator light 203 is connected to derive the light emitted by the indicator light; the light guiding column 204 is connected to the panel 211 to fix the position of the light guiding column; the light guiding column 204 can be embedded in the groove below the light module.
  • the installation position of the light guide bar 204 includes, but is not limited to, near the bottom of the optical module, near the left side of the optical module, near the left side of the optical module, near the top of the optical module, and the like.
  • the optical module of the embodiment can be implemented as a small pluggable optical transceiver module SFP or a novel small pluggable optical transceiver module SFP+ or 10G small pluggable optical transceiver module XFP.
  • the network device can save the panel area occupied by the additionally configured indicator lights, so that more ports can be integrated in a unit area.
  • an integrated indicator light module and a network device provided by the embodiment of the present invention, the indicator light is led out from the lower part of the PCB of the optical module through the flexible circuit board, and the indication is fixed on the internal frame of the optical module without affecting the insertion and removal of the optical module.
  • the network device can indicate the state of the optical module without an additional indicator light, save the area of the network device panel, increase the port density of the network device, and reduce the cost and unit power consumption of the network device.
  • the embodiment of the present invention provides another optical module, including: a PCB, a flexible circuit board, an indicator light, a light emitting sub-module, a light receiving sub-module, and a panel.
  • the PCB 201 is connected to the flexible circuit board 205; the flexible circuit board 205 includes an indicator cable; the flexible circuit board 205 leads the indicator cable from the PCB 201; 3 (a), FIG. 3 (b), FIG. 3 (c), the indicator lights 203, 208 are located inside the optical module, and the connecting lines drawn through the flexible circuit board 205 and the PCB 201 Connected to indicate the status of the optical module.
  • FIG. 2(d) the PCB 201 is connected to the flexible circuit board 205; the flexible circuit board 205 includes an indicator cable; the flexible circuit board 205 leads the indicator cable from the PCB 201; 3 (a), FIG. 3 (b), FIG. 3 (c), the indicator lights 203, 208 are located inside the optical module, and the connecting lines drawn through the flexible circuit board 205 and the
  • the light emitting sub-module is placed inside the optical module in parallel with the light receiving sub-module; the indicator lights 203, 208 can be placed in the light emitting sub-module 206 (Transmi t ter Opt ica l Subas sembly; T0SA ) and the light receiving sub-module 207 (Receiver Opt ica l Subas sembly; ROSA) is located near the bottom of the optical module, and is fixed on the internal supporting surface 209 to avoid affecting the light emitting sub-module 206 and the light receiving
  • the optical module further includes a light guiding column 204, 210, and the light guiding column is connected to the indicator lights 203, 208 to derive light emitted by the indicator light; the light guiding column 204,
  • the light guide column 204 can be embedded in the groove below the light module, and the light guide columns 204 and 210 respectively derive the light emitted by the indicator lights 203 and 208.
  • the mounting positions of the light guiding columns 204 and 210 include, but are not limited to, near the bottom of the optical module, near the left side of the optical module, near the left side of the optical module, near the top of the optical module, and the like.
  • the optical module that can be implemented in this embodiment can be a small pluggable optical transceiver module SFP, or a new small pluggable optical transceiver module SFP+, or a 10G small pluggable optical transceiver module XFP.
  • more indicators can be integrated in the internal space of the optical module as needed; a light guide column can be configured for each indicator light to derive the light emitted by the indicator light.
  • the embodiment of the present invention further provides a network device, where the network device includes an optical module, and the optical module includes: a PCB, a flexible circuit board, an indicator light, a light emitting sub-module, a light receiving sub-module, and a panel.
  • the PCB 201 is connected to the flexible circuit board 205; the flexible circuit board 205 includes an indicator cable; the flexible circuit board 205 leads the indicator cable from the PCB 201; 3 (a), FIG. 3 (b), and FIG. 3 (c), the indicator lights 203, 208 are located in the light The inside of the module, and the connecting line drawn through the flexible circuit board 205 is connected to the PCB 201 to indicate the state of the optical module.
  • the network device includes an optical module
  • the optical module includes: a PCB, a flexible circuit board, an indicator light, a light emitting sub-module, a light receiving sub-module, and a panel.
  • the light emitting sub-module is placed inside the optical module in parallel with the light receiving sub-module; the indicator lights 203, 208 can be placed in the light emitting sub-module 206 (Transmi t The space between the bottom of the optical module and the bottom of the optical module is fixed on the inner support surface 209 to avoid the influence of the ter s semb ly;
  • the light emitting sub-module 206 and the light receiving sub-module 207 are inserted and removed;
  • the optical module further includes a light guiding column 204, 210, and the light guiding column is connected to the indicator lights 203, 208 to derive the light emitted by the indicator light
  • the light guiding rods 204 and 210 are connected to the panel 211 to fix the position of the light guiding column; the light guiding column 204 can be embedded in a groove below the light module, and the light guiding columns 204 and 210 respectively derive the indicator light 203 , 208 light.
  • the mounting positions of the light guiding columns 204 and 210 include, but are not limited to, near the bottom of the optical module, near the left side of the optical module, near the left side of the optical module, near the top of the optical module, and the like.
  • the optical module that can be implemented in this embodiment may be a small pluggable optical transceiver module SFP, or a novel small pluggable optical transceiver module SFP+, or a 10G small pluggable optical transceiver module XFP.
  • more indicator lights can be integrated in the internal space of the optical module as needed; a light guide column can be correspondingly arranged for each indicator light to derive the light emitted by the indicator light.
  • the network device can save the panel area occupied by the additionally configured indicator lights, so that more ports can be integrated in a unit area.
  • the integrated indicator light module and the network device provided by the embodiment of the present invention lead the indicator light from the lower part of the PCB of the optical module through the flexible circuit board, and fix the indicator light on the internal frame of the module without affecting the insertion and removal of the optical module.
  • the network device can indicate the status of the optical module without additional indicators, saves the area of the network device panel, increases the port density of the network device, and reduces the cost and unit power consumption of the network device.
  • the embodiment of the present invention provides another optical module, including: a printed circuit board and an indicator light; wherein the indicator light is directly integrated on the printed circuit board, and the indicator light is led to the front of the optical module through the light guide column.
  • the implementation scheme refers to FIG. 4 , in which the indicator light and the printed circuit board are not in the same horizontal plane.
  • the optical module includes: a printed circuit board PCB201 and an indicator light 203 (the indicator light may also include two or more, if two can refer to the indicator light 203 in FIG.
  • the light module further includes: a light guide bar 204 and a panel 211, wherein the light guide bar 204, the light guide bar 204 and the indicator light 203 Connected to derive the light emitted by the indicator light; the light guide bar 204 is connected to the panel 211 to fix the position of the light guide column.
  • Another embodiment of the present invention provides an optical module comprising: a printed circuit board and an indicator light; wherein the indicator light is integrated on another printed circuit board.
  • the printed circuit board on which the indicator light is located is connected to the printed circuit board by means of a gusset plate to solve the situation where the indicator light and the printed circuit board are not at the same level.
  • the indicator light is on the stencil printed circuit board, and you can choose whether to add the light guide light guide.
  • the implementation scheme can refer to Figure 5.
  • the optical module includes: a printed circuit board PCB20, a PCB 205 (ie, a PCB on which the indicator light is described), and an indicator 203 (or the optical module).
  • the two indicator lights which are respectively an indicator light 203 and an indicator light 208, are connected to the PCB 201 through a connection line drawn from the gusset PCB 205 to indicate the state of the optical module, wherein the PCB 201 and the gusset plate
  • the PCB 205 is connected by a connector, and the indicator light 208 is on the gusset PCB 205.
  • the light module further includes a light guide bar 204, and the light guide bar 204 is connected to the indicator light 203 to derive light emitted by the indicator light; the light guide bar 204 is connected to the panel 211 to fix the light guide column.
  • the position of the light guide bar 204 can be embedded in a recess below the light module.
  • the mounting position of the light guide bar 204 includes, but is not limited to, near the bottom of the optical module, near the left side of the optical module, near the left side of the optical module, near the top of the optical module, and the like.
  • the optical module of the embodiment can be implemented as a small pluggable optical transceiver module SFP or a novel small pluggable optical transceiver module SFP+ or 10G small pluggable optical transceiver module XFP, or a single fiber bidirectional optical module. .
  • Embodiment 5 The embodiment of the present invention provides another optical module, including: a printed circuit board and an indicator light; when the printed circuit board and the light module indicator are at the same level, the indicator light can be directly integrated on the printed circuit board, in order to avoid light Possible structural interference inside the module can take the form of a shaped printed circuit board such as a hollowed out area. Refer to Figure 6 for the scenario.
  • an optical module includes: a printed circuit board 201 and an indicator light 203 (if there are two or two indicator lights, it may be an indicator light 203 (208) indicating an indicator light 203 and an indicator light 208, respectively.
  • the indicator light 203 is located on the right side of the printed circuit board 201.
  • the optical module further includes: an optical module connector 218 (a plurality of optical module connectors 218 on each PCB). Since the printed circuit board and the light module indicator are on the same horizontal plane, the indicator light is directly integrated on the printed circuit board, so the light module can eliminate the need of a light guide column, but in order to avoid possible structural interference inside the light module, the shaped printed circuit board is captured.
  • the hollowed out area 219 is placed by the hollowed out area 219 in the figure to place other optical components (for example, the light emitting submodule and the light receiving submodule), thereby avoiding interference of the optical device with the structure of the printed circuit board 201.
  • other optical components for example, the light emitting submodule and the light receiving submodule

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Couplings Of Light Guides (AREA)
  • Mechanical Coupling Of Light Guides (AREA)

Description

一种光模块及网络设备 技术领域 本申请涉及通信设备领域， 尤其涉及一种光模块、 网络设备。 背景技术
光模块是当前光纤通信领域的重要元器件 , 包括小型可插拔光收发模块
SFP (Sma l 1 Form-factor Pluggable Opt ica l Transce iver Module)、 新型的 小型可插拔光收发模块 SFP+、 10G小型可插拔光收发模块 XFP (10 Gigabi t Sma l l Form Factor Pluggable Module)等。 标准的光模块无内置指示灯， 实 际使用时， 必须依靠和光模块对应的指示灯来对光模块的状态进行指示， 以 方便用户使用。 例如， 在以太网应用中， 一般会有连接指示灯（l ink灯） ， 用于对当前的链路状态进行指示。 灯常亮标识连接成功 （l ink ok ) , 灯灭标 识连接失败（l ink fa i l ) , 灯闪烁标识端口有流量。
一般情况， 指示灯靠近光模块放置。 然而， 光模块和指示灯的分别放置 降低了网络设备的端口密度。 以路由器为例， 目前标准 9U单板（U,机箱高度 单位 Uni t , 1U=1. 75英寸 =4. 445厘米）普遍受拉手条面积的限制。 以 1. 6英寸 槽间距单板为例， 如图 1所示， 1. 6英寸槽间距的有效高度为 40. 6毫米， 而一 个 SFP模块 101的高度为 12毫米左右（考虑插拔间隔）， 理论上可以放置 3排 SFP 光模块， 即最多可支持 72端口， 但由于需要为指示灯 102预留位置， 只能放置 双排 SFP光模块 101 , 最多仅支持 48端口。 可见， 在拉手条上放置指示灯， 使 得端口密度无法实现最大化。 而在网络设备发展十分迅速的今天， 端口密度 是衡量设备性能的重要指标。 单位面积内放置更多的端口， 可以降低设备成 本， 从而降低用户的初期投入成本； 同时设备占用的空间小， 单位功耗也相 应降低， 从而降低用户的机房租金、 电费等使用成本。 如果为提高端口密度 而不放置指示灯， 则不能直观获得端口的状态， 需要登陆网管或者调试接口 查询， 使得单板的可维护性大大降低。 为同时满足提高网络设备的端口密度 和网络设备可维护性的要求， 有必要将指示灯集成入光模块内部。 然而， 现 有技术的集成方案复杂， 不易实现对指示灯状态的控制。 实用新型内容 为提高网络设备的端口密度， 降低设备的成本和单位功耗， 实现光模块 对集成指示灯状态的灵活控制， 本实用新型实施例提供了一种光模块， 包括： 印刷电路板、 柔性电路板和指示灯；
所述印刷电路板和所述柔性电路板相连；
所述柔性电路板从所述印刷电路板引出所述指示灯的连接线；
所述指示灯位于所述光模块的内部， 并通过所述柔性电路板引出的连接 线与所述印刷电路板相连， 以指示所述光模块的状态。
本实用新型实施例还提供一种网络设备， 包括一种光模块， 所述光模块 包括：
印刷电路板、 柔性电路板和指示灯；
所述印刷电路板和所述柔性电路板相连；
所述柔性电路板从所述印刷电路板引出所述指示灯的连接线；
所述指示灯位于所述光模块的内部， 并通过所述柔性电路板引出的连接 线与所述印刷电路板相连， 以指示所述光模块的状态。
所述光模块还可以包括： 导光柱、 面板； 所述导光柱与所述指示灯相连， 以导出所述指示灯所发出的光线； 所述导光柱与所述面板相连， 以固定所述 导光柱的位置。 所述导光柱的位置可以靠近所述光模块的底部、 或靠近所述 光模块的左侧面、 或靠近所述光模块的左侧面、 或靠近所述光模块的顶部。
所述光模块还可以包括——对应的多个指示灯和多个导光柱。
所述光模块还可以包括： 光发射次模块、 光接收子模块； 所述光发射子 模块与所述光接收子模块平行放置于所述光模块内部； 所述指示灯位于所述 光发射子模块和光接收子模块的中间靠近所述光模块底部的空间。
本实用新型实施例提供的一种光模块、 网络设备通过柔性电路板从光模 块的 PCB下方引出指示灯，， 而不影响光模块的插拔， 使得网络设备无需额外 的指示灯就可以指示光模块的状态， 节省了网络设备面板的面积， 提高了网 络设备的端口密度， 降低了网络设备的成本和单位功耗。 附图说明 为了更清楚地说明本实用新型实施例或现有技术中的技术方案， 下面将 对实施例或现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实用新型的一些实施例， 对于本领域普通技术人 员来讲， 在不付出创造性劳动性的前提下， 还可以根据这些附图获得其他的 附图。
图 1是现有技术中一种路由器单板的端口放置示意图；
图 1 (a)是本实用新型实施例所述的一种光模块的正面示意图；
图 1 (b)是本实用新型实施例所述的一种光模块的侧面示意图；
图 2 (c)是本实用新型实施例所述的一种光模块的俯视透视图；
图 2 (d)是本实用新型实施例所述的一种光模块的 PCB板和柔性电路板的 连接图；
图 3 (a)是本实用新型实施例所述的另一种光模块的正面示意图； 图 3 (b)是本实用新型实施例所述的另一种光模块的侧面示意图； 图 3 (c)是本实用新型实施例所述的另一种光模块的俯视透视图。 具体实施方式 下面将结合本实用新型实施例中的附图， 对本实用新型实施例中的技术 方案进行清楚、 完整地描述， 显然， 所描述的实施例仅仅是本实用新型一部 分实施例， 而不是全部的实施例。 基于本实用新型中的实施例， 本领域普通 技术人员在没有做出创造性劳动前提下所获得的所有其他实施例， 都属于本 实用新型保护的范围。 实施例一
如图 2(a)、 图 2(b)、 图 2(c)、 图 2(d)所示， 本实用新型实施例提供一 种光模块， 包括： 印刷电路板 PCB201、 柔性电路板 205、 指示灯 203、 光发射 子模块 206、 光接收子模块 207、 面板 211。 如图 2(d)所示， 是本实用新型实 施例所述的一种光模块的 PCB板和柔性板柔性电路板的连接图， 所述 PCB201 与柔性电路板 205相连； 所述柔性电路板 205上包括指示灯连接线； 所述柔 性电路板 205从 PCB201引出所述指示灯连接线；如图 2(a)、图 2(b)、图 2(c) 所示， 所述指示灯 203位于所述光模块的内部， 并通过所述柔性电路板 205 引出的连接线与所述 PCB201相连，以指示所述光模块的状态。如图 2(c)所示， 所述光发射子模块与所述光接收子模块平行放置于所述光模块内部； 所述指 示灯 203可放置于光发射子模块 206 (Transmitter Optical Subassembly; T0SA)和光接收子模块 207 (Receiver Optical Subassembly; ROSA) 中间靠 近光模块底部的空间， 固定在内部支撑面 209 上， 以充分利用光发射子模块 206和光接收子模块 207中间靠近光模块底部的空间，以避免影响光发射子模 块 206和光接收子模块 207的插拔；所述光模块还包括导光柱 204, 所述导光 柱 204与所述指示灯 203相连， 以导出所述指示灯所发出的光线； 所述导光 柱 204与面板 211相连， 以固定所述导光柱的位置； 所述导光柱 204可嵌入 光模块下方的凹槽。 所述导光柱 204 的安装位置包括但不限于靠近光模块的 底部、 靠近光模块的左侧面、 靠近光模块的左侧面、 靠近光模块的顶部等。 由于结构类似， 可实施本实施例的光模块为小型可插拔光收发模块 SFP或新 型的小型可插拔光收发模块 SFP+或 10G小型可插拔光收发模块 XFP等。
本发明实施例还提供一种网络设备， 所述网络设备包括： 印刷电路板 PCB20 柔性电路板 205、指示灯 203、光发射子模块 206、光接收子模块 207、 面板 211。 如图 2 (d)所示， 是本实用新型实施例所述的一种光模块的 PCB板 和柔性板柔性电路板的连接图， 所述 PCB201与柔性电路板 205相连； 所述柔 性电路板 205上包括指示灯连接线； 所述柔性电路板 205从 PCB201引出所述 指示灯连接线； 如图 2 (a)、 图 2 (b)、 图 2 (c)所示， 所述指示灯 203位于所述 光模块的内部，并通过所述柔性电路板 205引出的连接线与所述 PCB201相连， 以指示所述光模块的状态。 如图 2 (c)所示， 所述光发射子模块与所述光接收 子模块平行放置于所述光模块内部； 所述指示灯 203可放置于光发射子模块 206( Transmi t ter Opt i ca l Suba s semb ly; T0SA )和光接收子模块 207( Rece iver Opt i ca l Suba s semb ly; ROSA ) 中间靠近光模块底部的空间， 固定在内部支撑 面 209上， 以充分利用光发射子模块 206和光接收子模块 207中间靠近光模 块底部的空间， 以避免影响光发射子模块 206和光接收子模块 207的插拔；所 述光模块还包括导光柱 204 , 所述导光柱 204与所述指示灯 203相连， 以导出 所述指示灯所发出的光线； 所述导光柱 204与面板 211相连， 以固定所述导 光柱的位置； 所述导光柱 204可嵌入光模块下方的凹槽。 所述导光柱 204的 安装位置包括但不限于靠近光模块的底部、 靠近光模块的左侧面、 靠近光模 块的左侧面、 靠近光模块的顶部等。 由于结构类似， 可实施本实施例的光模 块为小型可插拔光收发模块 SFP或新型的小型可插拔光收发模块 SFP+或 10G 小型可插拔光收发模块 XFP等。 与现有技术相比， 由于所述光模块已集成指 示灯， 所述网络设备可以节省额外配置的指示灯所占用的面板面积， 从而可 以在单位面积内集成更多的端口。
本实用新型实施例提供的一种集成指示灯光模块和网络设备， 通过柔性 电路板从光模块的 PCB下方引出指示灯， 将指示固定在光模块内部框架上， 而不影响光模块的插拔， 使得网络设备无需额外的指示灯就可以指示所述光 模块的状态， 节省了网络设备面板的面积， 提高了网络设备的端口密度， 降 低了网络设备的成本和单位功耗。 实施例二
本实用新型实施例提供另一种光模块， 包括： PCB、 柔性电路板、指示灯、 光发射子模块、 光接收子模块、 面板。 如图 2 (d)所示， 所述 PCB201和柔性电 路板 205相连； 所述柔性电路板 205上包括指示灯连接线； 所述柔性电路板 205从 PCB201 引出所述指示灯连接线； 如图 3 (a)、 图 3 (b)、 图 3 (c)所示， 所述指示灯 203、 208位于所述光模块的内部， 并通过所述柔性电路板 205引 出的连接线与所述 PCB201相连， 以指示所述光模块的状态。 如图 3 (c)所示， 所述光发射子模块与所述光接收子模块平行放置于所述光模块内部； 所述指 示灯 203、 208可放置于光发射子模块 206( Transmi t ter Opt ica l Subas sembly; T0SA )和光接收子模块 207 ( Rece iver Opt ica l Subas sembly; ROSA ) 中间靠 近光模块底部的空间， 固定在内部支撑面 209 上， 以避免影响光发射子模块 206和光接收子模块 207的插拔；所述光模块还包括导光柱 204、 210, 所述导 光柱与所述指示灯 203、 208相连， 以导出所述指示灯所发出的光线； 所述导 光柱 204、 210与面板 211相连， 以固定所述导光柱的位置； 所述导光柱 204 可嵌入光模块下方的凹槽， 所述导光柱 204、 210分别导出所述指示灯 203、 208发出的光线。 所述导光柱 204、 210的安装位置包括但不限于靠近光模块 底部、 靠近光模块的左侧面、 靠近光模块的左侧面、 靠近光模块的顶部等。 由于结构类似， 可实施本实施例的光模块可以是小型可插拔光收发模块 SFP、 或新型的小型可插拔光收发模块 SFP+、或 10G小型可插拔光收发模块 XFP等。 根据前述结构特征， 可根据需要在所述光模块的内部空间集成更多的指示灯； 可以为每个指示灯一一对应配置导光柱， 以导出所述指示灯发出的光线。
本实用新型实施例还提供一种网络设备， 所述网络设备包括光模块， 所 述光模块包括： PCB、 柔性电路板、 指示灯、 光发射子模块、 光接收子模块、 面板。 如图 2 (d)所示， 所述 PCB201和柔性电路板 205相连； 所述柔性电路板 205上包括指示灯连接线； 所述柔性电路板 205从 PCB201引出所述指示灯连 接线； 如图 3 (a)、 图 3 (b)、 图 3 (c)所示， 所述指示灯 203、 208位于所述光 模块的内部， 并通过所述柔性电路板 205引出的连接线与所述 PCB201相连， 以指示所述光模块的状态。 ；如图 3 (c)所示， 所述光发射子模块与所述光接收 子模块平行放置于所述光模块内部； 所述指示灯 203、 208可放置于光发射子 模块 206 ( Transmi t ter Opt i ca l Suba s semb ly; TOSA )和光接收子模块 207 ( Rece iver Op t i ca l Suba s semb ly; ROSA ) 中间靠近光模块底部的空间， 固 定在内部支撑面 209上， 以避免影响光发射子模块 206和光接收子模块 207 的插拔；所述光模块还包括导光柱 204、 210 , 所述导光柱与所述指示灯 203、 208相连， 以导出所述指示灯所发出的光线； 所述导光柱 204、 210与面板 211 相连， 以固定所述导光柱的位置； 所述导光柱 204可嵌入光模块下方的凹槽， 所述导光柱 204、 210分别导出所述指示灯 203、 208发出的光线。 所述导光 柱 204、 210的安装位置包括但不限于靠近光模块底部、靠近光模块的左侧面、 靠近光模块的左侧面、 靠近光模块的顶部等。 由于结构类似， 可实施本实施 例的光模块可以是小型可插拔光收发模块 SFP、或新型的小型可插拔光收发模 块 SFP+、 或 10G小型可插拔光收发模块 XFP等。 根据前述结构特征， 可根据 需要在所述光模块的内部空间集成更多的指示灯； 可以为每个指示灯——对 应配置导光柱， 以导出所述指示灯发出的光线。 与现有技术相比， 由于所述 光模块已集成指示灯， 所述网络设备可以节省额外配置的指示灯所占用的面 板面积 , 从而可以在单位面积内集成更多的端口。
本实用新型实施例提供的一种集成指示灯光模块、 网络设备， 通过柔性 电路板从光模块的 PCB下方引出指示灯， 将指示灯固定在模块内部框架上， 而不影响光模块插拔， 使得网络设备无需额外的指示灯就可以指示光模块的 状态， 节省了网络设备面板的面积， 提高了网络设备的端口密度， 降低了网 络设备的成本和单位功耗。
实施例三
本实用新型实施例提供另一种光模块， 包括： 印刷电路板和指示灯； 其 中指示灯直接集成在印刷电路板上， 通过导光柱引出指示灯光到光模块正面。 实现方案参考图 4 , 其中指示灯和印刷电路板不在同一水平高度平面的情况。 如图 4所示， 图中该光模块， 包括： 印刷电路板 PCB201、 指示灯 203 (该 指示灯也可以包括两个或者两个以上，若为两个可以参照图 4中的指示灯 203 和指示灯 208 , 其中所述指示灯位于所述光模块的内部）， 所述光模块还包括： 导光柱 204和面板 211 , 其中所述导光柱 204 , 所述导光柱 204与所述指示灯 203相连，以导出所述指示灯所发出的光线；所述导光柱 204与面板 211相连， 以固定所述导光柱的位置。
实施例四
本实用新型实施例提供另一种光模块， 包括： 印刷电路板和指示灯； 其 中指示灯集成在另一块印刷电路板上。 所述指示灯所在的印刷电路板通过扣 板形式和本印刷电路板连接， 以解决指示灯和印刷电路板不在同一水平高度 平面的情况。 此时指示灯在扣板印刷电路板上， 并可以选择是否加导光柱导 光。 实现方案可以参考图 5。
如图 5 中提供的另一种光模块的结构图， 该光模块， 包括： 印刷电路板 PCB20 扣板 PCB205 (即上面所描述的指示灯所在的 PCB )、 指示灯 203 (或 者该光模块中包括两个指示灯， 分别为指示灯 203和指示灯 208 , 并通过所述 扣板 PCB205引出的连接线与所述 PCB201相连， 以指示所述光模块的状态 ), 其中所述 PCB201与扣板 PCB205通过连接器相连接， 所述指示灯 208在扣板 PCB205。 所述光模块还包括导光柱 204 , 所述导光柱 204与所述指示灯 203相 连， 以导出所述指示灯所发出的光线； 所述导光柱 204与面板 211相连， 以 固定所述导光柱的位置； 所述导光柱 204 可嵌入光模块下方的凹槽。 所述导 光柱 204的安装位置包括但不限于靠近光模块的底部、 靠近光模块的左侧面、 靠近光模块的左侧面、 靠近光模块的顶部等。 由于结构类似， 可实施本实施 例的光模块为小型可插拔光收发模块 SFP 或新型的小型可插拔光收发模块 SFP+或 10G小型可插拔光收发模块 XFP , 或单纤双向光模块等。
实施例五 本实用新型实施例提供另一种光模块， 包括： 印刷电路板和指示灯； 当 印刷电路板和光模块指示灯在同一水平面时， 指示灯可以直接集成在印刷电 路板上， 此时为了避免光模块内部可能的结构干涉， 可以釆取异形印刷电路 板方式如挖空部分区域。 方案参考图 6。
如图 6所示， 一种光模块， 包括： 印刷电路板 201和指示灯 203 (若有两 个或者两个指示灯则可以为指示灯 203 ( 208 ) , 分别表示指示灯 203和指示灯 208 ), 所述指示灯 203位于所述印刷电路板 201的右侧； 所述光模块还包括： 光模块连接器 218 (每个 PCB上的光模块连接器 218有多个）。 由于印刷电路 板和光模块指示灯在同一水平面， 指示灯直接集成在印刷电路板上， 所以该 光模块可以不需要导光柱， 但是为了避免光模块内部可能的结构干涉， 釆取 异形印刷电路板方式如挖空的区域 219 ,通过图中挖空区域 219分来放置其它 光器件（例如： 光发射子模块和光接收子模块）， 避免了该光器件与所述印刷 电路板 201的结构干涉。

Claims

权 利 要求 书
1、 一种光模块， 其特征在于， 包括： 印刷电路板和指示灯；
所述印刷电路板， 通过指示灯的连接线与所述指示灯相连； 其中所述指 示灯的连接线是从所述印刷电路板引出的；
所述指示灯位于所述光模块的内部， 并通过所述连接线与所述印刷电路 板相连， 以指示所述光模块的状态。
1、 根据权利要求 1所述的光模块， 其特征在于， 所述连接线是从所述印 刷电路板引出的具体包括：
所述连接线是直接从所述印刷电路板引出的； 或者，
所述连接线是通过扣板方式从所述印刷电路板引出的； 或者，
所述光模块还包括： 柔性电路板， 所述印刷电路板和所述柔性电路板相 连；
所述连接线是通过所述柔性电路板从所述印刷电路板引出的。
3、 根据权利要求 1或者 2所述的光模块， 其特征在于， 所述光模块还包 括： 导光柱、 面板； 所述导光柱与所述指示灯相连， 以导出所述指示灯所发 出的光线； 所述面板与所述导光柱相连， 以固定所述导光柱的位置。
4、 根据权利要求 3所述的光模块， 其特征在于， 所述光模块包括一一对 应的多个指示灯和多个导光柱。
5、 根据权利要求 1或者 2所述的光模块， 其特征在于， 所述光模块还包 括： 光发射子模块、 光接收子模块； 所述光发射子模块与所述光接收子模块 平行放置于所述光模块内部； 所述指示灯位于所述光发射子模块和光接收子 模块的中间靠近所述光模块底部的空间。
6、 根据权利要求 3所述的光模块， 其特征在于， 所述导光柱的位置靠近 所述光模块的底部、 或靠近所述光模块的左侧面、 或靠近所述光模块的左侧 面、 或靠近所述光模块的顶部。
7、 根据权利要求 1-6任一项所述的光模块， 其特征在于， 所述光模块为 小型可插拔光收发模块 SFP、 新型的小型可插拔光收发模块 SFP+或 10G小型 可插拔光收发模块 XFP, 或单纤双向光模块。
8、 一种网络设备， 其特征在于， 包括如权利要求 1-7任一项所述的光模 块。
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