WO2011044724A1 - 一种光纤连接器 - Google Patents

一种光纤连接器 Download PDF

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Publication number
WO2011044724A1
WO2011044724A1 PCT/CN2009/074421 CN2009074421W WO2011044724A1 WO 2011044724 A1 WO2011044724 A1 WO 2011044724A1 CN 2009074421 W CN2009074421 W CN 2009074421W WO 2011044724 A1 WO2011044724 A1 WO 2011044724A1
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WO
WIPO (PCT)
Prior art keywords
optical fiber
card slot
flange
fiber connector
connector according
Prior art date
Application number
PCT/CN2009/074421
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English (en)
French (fr)
Inventor
丁深根
李运进
宋启兴
Original Assignee
深圳日海通讯技术股份有限公司
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Application filed by 深圳日海通讯技术股份有限公司 filed Critical 深圳日海通讯技术股份有限公司
Priority to PCT/CN2009/074421 priority Critical patent/WO2011044724A1/zh
Publication of WO2011044724A1 publication Critical patent/WO2011044724A1/zh

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Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/36Mechanical coupling means
    • G02B6/38Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807Dismountable connectors, i.e. comprising plugs
    • G02B6/381Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
    • G02B6/3825Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres with an intermediate part, e.g. adapter, receptacle, linking two plugs

Definitions

  • the present invention relates to the field of physical communication technology for optical fiber communication, and more particularly to a fiber backplane connector.
  • the method of connecting two different optical fibers includes the following two methods, one is to permanently fix two different optical fibers; the other is to utilize a connector (the connector usually includes a fiber plug and The fiber optic plug is detachably connected to the adapter) for active connection.
  • Active connections have the advantage of repeatable connections and are therefore widely used.
  • the existing fiber optic adapters are connected to standard fiber optic plugs on both sides.
  • the number of plugs on the two sides of the fiber optic adapter varies greatly, especially in the wiring module or the fusion wiring module.
  • the inside of the adapter (toward the inside of the module), the fiber plug is rarely inserted and removed repeatedly after being inserted into the adapter, and on the opposite side, the plug is inserted and removed a little more, so on the inside of the adapter, the fiber plug
  • the number of pluggable times is relatively low.
  • the existing fiber optic adapters use standard fiber optic plugs inside and outside, which increases the cost of fiber optic connections to some extent. Under the premise of ensuring the performance of the adapter, how to achieve cost reduction and mass production becomes an urgent technical problem to be solved in the industry.
  • constructing a fiber optic connector comprising: an adapter component, the adapter component comprising a plastic material flange and a collimating member located in the flange, The flange has a first side and a second side opposite the first side, the first side having a connection adapted to a standard fiber optic plug;
  • a simple optical fiber plug comprises a plastic material card slot member, and a plastic material elastic clip locking member, further comprising a pin assembly, the card slot member being a hollow cylinder, a pin assembly is located inside the slot member, a first end of the slot member is fixedly coupled to the elastic clip locking member, and a second end of the slot member is rotated with a second side of the flange Cartridge detachable fixed connection.
  • the second side of the flange has a mounting hole adapted to the second end of the card slot member, and the mounting hole has a positioning on the hole wall
  • the second end of the slot member is provided with a substantially "L" shaped card slot adapted to the positioning protrusion.
  • the positioning protrusions are at least two, and the positioning protrusions are evenly distributed along the circumferential direction of the inner wall of the mounting hole.
  • the second side of the flange has a mounting hole adapted to the card slot member, and the hole wall of the mounting hole is provided with a substantially "L"
  • the second slot of the slot member is provided with a positioning protrusion adapted to the substantially "L” shaped card slot.
  • the substantially "L"-shaped card slot is at least two, and the substantially “L"-shaped card slot is along the circumference of the inner wall of the mounting hole. Uniform distribution.
  • the inner wall of the first end of the card slot member is provided with a buckle, and the elastic clip locking member has an inverted buckle adapted to the buckle.
  • the buckle is at least two, and the buckle is evenly distributed along the circumferential direction of the inner wall of the card slot.
  • the elastic clip locking member is provided with a notch.
  • the standard optical fiber plug is an FC type, SC type, LC type, ST type, or MU type optical fiber plug.
  • the pin assembly includes a pin and a sleeve disposed on the pin
  • the optical fiber connector embodying the present invention has the following advantageous effects: Adaptation of the optical fiber connector of the present invention One side of the device is connected to a standard fiber plug, and the other side is connected to a simple plug, which reduces the cost of the connector under the premise of ensuring the reliability of the connection, and has good practical significance and economic benefits.
  • FIG. 1 is a schematic structural view of a first embodiment of a fiber optic connector of the present invention
  • FIG. 2 is a schematic structural view of a second embodiment of the optical fiber connector of the present invention.
  • Figure 3 is a schematic structural view of a third embodiment of the optical fiber connector of the present invention.
  • FIG. 4 is a schematic structural view of a fourth embodiment of the optical fiber connector of the present invention.
  • the optical fiber connection of the present invention is based on the requirements of the optical fiber plugs on both sides of the adapter, one side is connected to one standard optical fiber plug, the other side is connected to a simple optical fiber plug, and the main components are all plastic, and the optical fiber is secured. Under the premise of the reliability of the connection, the cost of the fiber connector is effectively reduced.
  • the fiber optic connector of the present invention is described in detail below in conjunction with the embodiments.
  • a first embodiment of the fiber optic connector of the present invention is an FC-type fiber optic connector including an adapter assembly including a flange 10 and a collimating member 20 located within the flange.
  • the flange 10 has a first side 11 and a second side 12, the first side 11 of which has an external thread 111 adapted to a standard FC-type fiber optic plug 60, the external thread 111 being a M8 standard thread and the first side being 11 It is connected to the fiber outside the device and needs to be inserted and removed many times. Therefore, the standard FC type fiber plug is used.
  • the second side 12 of the flange 10 is used for the fiber plug connection in the device, and the number and probability of plugging and unplugging the fiber plug after inserting the side are small, therefore, the fiber plug on the side and the fiber plug and the adapter
  • the connection requirements are lower than the requirements of the first side 11, and based on this, a simple optical fiber plug is designed in the present invention, the simple optical fiber plug including the card slot member 30, the pin assembly 40, and the elastic clip locking member 50.
  • the slot member 30 is a cylinder having a hollow inner cavity 31. The second end of the slot member 30 is fixedly coupled to the second side 12 of the flange 10, and the second side 12 of the flange 10 is provided with a card.
  • the mounting hole 121 of the slot member 30 is provided with a positioning protrusion 122.
  • the positioning protrusion 122 is two, symmetrically disposed on the inner wall of the mounting hole 121, and the slot member The second end of the 30 is provided with a generally "L" shaped card slot 32 adapted to the positioning protrusion 122.
  • the substantially "L” shaped card slot 32 is also correspondingly two and symmetrically distributed, the card slot member
  • the second side of the flange 10 is mounted to the second side of the flange 10, and the opening of the substantially "L” shaped slot 32 of the slot member 30 is inserted into the mounting hole 121, and then the slot member 30 is rotated.
  • the card slot member 30 can be realized Removable and fixed connection to the flange 10.
  • the pin assembly 40 includes a pin 41 and a spring 42 disposed on the pin 41.
  • the pin assembly 40 is mounted in the hollow inner cavity 31 of the slot member 30, and the elastic clip locking member 50 is fixedly connected to the card.
  • the first end of the channel member 30 encloses the pin assembly 40 with the inner chamber 31.
  • the elastic clip locking member 50 and the slot member 30 are connected by a buckle fastening manner, that is, the buckle 33 is provided on the inner wall of the first end of the slot member 30, and the buckle 33 is two.
  • the reverse buckle 51 is disposed on the elastic clip locking member, and the reverse buckle 51 is also correspondingly two and symmetrically distributed, in order to make the buckle
  • the combination is relatively easy, and the notch 52 can be arranged on the elastic clip locking member, so that the snap-fit elastic clip locking member can be retracted under the action of a small force, which makes the assembly easier.
  • the positioning protrusions 122 and the buckle positions 33 in the present example are not limited to two, and may be plural, and are evenly distributed in the circumferential direction.
  • the second embodiment of the optical fiber connector of the present invention is an SC type optical fiber connector.
  • the first side 11 of the flange 10 of the optical fiber adapter has a standard SC type optical fiber plug.
  • the configuration of the mating connecting portion 1 12, the second side of the flange 10 and the simple optical fiber plug is the same as that of the first embodiment and will not be described.
  • the third embodiment of the optical fiber connector of the present invention is an LC type optical fiber connector.
  • the first side 11 of the flange 10 of the optical fiber adapter has a standard LC type optical fiber plug.
  • the structure of the 80-fitted connecting portion 113, the second side of the flange 10, and the simple optical fiber plug is the same as that in the first embodiment, and will not be described.
  • the fourth embodiment of the optical fiber connector of the present invention is an ST type optical fiber connector.
  • the first side 11 of the flange 10 of the optical fiber adapter has a standard ST type optical fiber plug.
  • the structure of the 90-fitted connecting portion 114, the second side of the flange 10, and the simple optical fiber plug is the same as that of the first embodiment, and will not be described.
  • the first side of the fiber-optic flange of the present invention may also be connected to a MU type standard fiber plug or other type of standard fiber plug.
  • the card-type detachable fixed connection structure in which the second end of the card slot member and the second side of the adapter cooperate with each other in the embodiment of the present invention may also be disposed in the mounting hole on the second side of the adapter.
  • the optical fiber connector of the present invention has one side connected to a standard optical fiber plug and the other side connected to a simple one.
  • the type of plug reduces the cost of the connector under the premise of ensuring the reliability of the connection, and has good practical significance and economic benefits.

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

Description

说明书
Title of Invention:一种光纤连接器 技术领域
[1] 本发明涉及光纤通信物理连接技术领域, 更具体地说, 涉及一种光纤背板连接 器。
背景技术
[2] 在现有技术中, 将两根不同光纤接续的方法包括以下两种, 一种是将两根不 同的光纤永久固定连接; 一种是利用连接器 (连接器通常包括光纤插头和与该 光纤插头可拆卸连接的适配器) 进行活动连接。 活动连接具有可重复接续的优 点, 因而得到了广泛的运用。
[3] (FTTx, X = H for home, P for premises, C for curb and N for node or
neighborhood)的发展, 尤其是 FTTH光纤到户的发展已经将光纤延伸到用户终端 , 光纤适配器的数量呈爆炸式增长。 在这种情况下, 成本就是攸关光纤适配器 竞争力的一项重要指标。
[4] 现有的光纤适配器两侧都连接标准的光纤插头, 实际使用中, 光纤适配器两 侧的插头的插拔次数的相差很大, 特别是在配线模块或熔接配线模块中, 在适 配器的内侧 (朝向模块内部的一侧) , 光纤插头插入适配器之后就很少会重复 的插拔, 而在相对侧, 插头插拔的次数会多一些, 所以在适配器的内侧, 对光 纤插头的可插拔次数的要求相对较低。 而现有的光纤适配器内外侧都釆用标准 的光纤插头, 一定程度上增加了光纤连接的成本。 在保证适配器性能的前提下 , 如何实现降低成本并能够大批量生产就成为业界所急需解决的技术问题。
[5] 现有技术中的各种连接器都釆用了符合行业标准的外观和结构, 材料的用量 通常较大。 因此, 在实现相同功能并能符合行业标准的条件下, 如何简化适配 器的结构, 以节约材料也是降低适配器制造成本的有效手段。
发明内容
[6] 本发明要解决的技术问题在于, 针对现有技术的连接器上述成本较高的缺陷
, 提供一种成本较低的光纤连接器。 本发明解决其技术问题所釆用的技术方案是: 构造一种光纤连接器, 包括: 一适配器组件, 所述适配器组件包括一塑料材质的法兰以及位于法兰内的准 直件, 所述法兰具有第一侧以及与第一侧相对的第二侧, 所述第一侧具有与标 准光纤插头适配的连接部;
[9] 一简易光纤插头, 所述简易光纤插头包括塑胶材质的卡槽件、 以及塑料材质 的弹性卡子锁紧件, 还包括一插针组件, 所述卡槽件为空心柱体, 所述插针组 件位于所述卡槽件内部, 所述卡槽件的第一端与所述弹性卡子锁紧件固定连接 , 所述卡槽件的第二端与所述法兰的第二侧旋卡式可拆卸固定连接。
[10] 在本发明所述的光纤连接器中, 所述法兰的第二侧具有与所述卡槽件的第二 端适配的安装孔, 所述安装孔的孔壁上设置有定位凸起, 所述卡槽件的第二端 设置有与所述定位凸起适配的大致呈" L"形的卡槽。
[11] 在本发明所述的光纤连接器中, 所述定位凸起至少为两个, 所述定位凸起沿 所述安装孔的内壁的周向均匀分布。
[12] 在本发明所述的光纤连接器中, 所述法兰的第二侧具有与所述卡槽件适配的 安装孔, 所述安装孔的孔壁上设置有大致呈 "L"形的卡槽, 所述卡槽件的第二端 设置有与所述大致呈 "L"形的卡槽适配的定位凸起。
[13] 在本发明所述的光纤连接器中, 所述大致呈" L"形的卡槽至少为两个, 所述 大致呈 "L"形的卡槽沿所述安装孔的内壁的周向均匀分布。
[14] 在本发明所述的光纤连接器中, 所述卡槽件的第一端的内壁上设置有扣位, 所述弹性卡子锁紧件具有与所述扣位适配的倒扣。
[15] 在本发明所述的光纤连接器中, 所述扣位至少为两个, 所述扣位沿所述卡槽 件的内壁的周向均匀分布。
[16] 在本发明所述的光纤连接器中, 所述弹性卡子锁紧件上设置有缺口。
[17] 在本发明所述的光纤连接器中, 所述标准光纤插头为 FC型、 SC型、 LC型、 ST型、 或 MU型光纤插头。
[18] 在本发明所述的光纤连接器中, 所述插针组件包括插针以及套设在插针上的
[19] 实施本发明的光纤连接器, 具有以下有益效果: 本发明的光纤连接器的适配 器的一侧连接标准光纤插头, 另一侧连接一简易型的插头, 在保证连接的可靠 性的前提下降低了连接器的成本, 具有很好的实际意义和经济效益。
附图说明
[20] 图 1是本发明的光纤连接器的第一实施例的结构示意图;
[21] 图 2是本发明的光纤连接器的第二实施例的结构示意图;
[22] 图 3是本发明的光纤连接器的第三实施例的结构示意图;
[23] 图 4是本发明的光纤连接器的第四实施例的结构示意图。
具体实施方式
[24] 本发明的光纤连接根据适配器两侧对光纤插头的要求的不同, 一侧连接一标准 光纤插头, 另一侧连接一简易型的光纤插头, 且主要部件都釆用塑料, 在保证 光纤连接的可靠性的前提下, 有效的降低了光纤连接器的成本。 下面结合实施 例详细介绍本发明的光纤连接器是如何实现的。
[25] 如图 1所示, 本发明的光纤连接器的第一实施例为 FC型光纤连接器, 包括适 配器组件, 该适配器组件包括一法兰 10以及位于法兰内的准直件 20, 法兰 10具 有第一侧 11和第二侧 12, 其第一侧 11具有与标准的 FC型光纤插头 60适配的外螺 纹 111, 该外螺纹 111为 M8标准螺纹, 第一侧用 11于和设备外部的光纤连接, 需 要插拔的次数较多, 因此釆用标准的 FC型光纤插头。
[26] 法兰 10的第二侧 12用于设备内引出的光纤插头连接, 光纤插头插入该侧后再 次插拔的次数和机率较小, 因此, 该侧的光纤插头以及光纤插头与适配器的连 接的要求都要低于第一侧 11的要求, 基于此, 在本发明中设计了一简易的光纤 插头, 该简易光纤插头包括卡槽件 30、 插针组件 40、 以及弹性卡子锁紧件 50。 卡槽件 30为具有中空内腔 31的柱体, 卡槽件 30的第二端与法兰 10的第二侧 12旋 卡式固定连接, 在法兰 10的第二侧 12设置有与卡槽件 30适配的安装孔 121, 安装 孔 121的内壁上设置有定位凸起 122, 在本实施例中, 定位凸起 122为两个, 对称 设置在安装孔 121的内壁上, 卡槽件 30的第二端设置有与定位凸起 122适配的大 致呈" L"形的卡槽 32, 该大致呈" L"形的卡槽 32也相应的为两个且对称分布, 卡 槽件 30安装到法兰 10的第二侧吋, 卡槽件 30的大致呈" L"形的卡槽 32的开口对转 所述定位凸起 122插入到安装孔 121中, 然后旋转卡槽件 30, 即可实现卡槽件 30 与法兰 10的可拆卸固定连接。 插针组件 40包括插针 41和套设在插针 41上的弹簧 4 2, 该插针组件 40安装在卡槽件 30的中空的内腔 31中, 弹性卡子锁紧件 50固定连 接在卡槽件 30的第一端, 将插针组件 40封与内腔 31中。 为了方便装配, 弹性卡 子锁紧件 50与卡槽件 30釆用倒扣扣接的方式连接, 即在卡槽件 30的第一端的内 壁上设置有扣位 33, 扣位 33为两个, 对称分布在卡槽件 30的第一端的内壁上, 与扣位相对应, 在弹性卡子锁紧件上设置有倒扣 51, 倒扣 51相应的也为两个且 对称分布, 为了使扣合吋较为容易, 可以在弹性卡子锁紧件上设置有缺口 52, 使扣合吋弹性卡子锁紧件在较小的力的作用下即可内缩, 使装配更易进行。 本 实例中的定位凸起 122以及扣位 33并不局限于两个, 也可以为多个, 且沿周向均 匀分布。
[27] 如图 2所示, 本发明的光纤连接器的第二实施例为 SC型光纤连接器, 在本实 例中, 光纤适配器的法兰 10第一侧 11具有与标准的 SC型光纤插头适配的连接部 1 12, 法兰 10的第二侧以及简易光纤插头的结构与第一实施例中的结构相同, 不 再赞述。
[28] 如图 3所示, 本发明的光纤连接器的第三实施例为 LC型光纤连接器, 在本实 例中, 光纤适配器的法兰 10第一侧 11具有与标准的 LC型光纤插头 80适配的连接 部 113, 法兰 10的第二侧以及简易光纤插头的结构与第一实施例中的结构相同, 不再赞述。
[29] 如图 4所示, 本发明的光纤连接器的第四实施例为 ST型光纤连接器, 在本实 例中, 光纤适配器的法兰 10第一侧 11具有与标准的 ST型光纤插头 90适配的连接 部 114, 法兰 10的第二侧以及简易光纤插头的结构与第一实施例中的结构相同, 不再赞述。
[30] 本发明的光纤连接的法兰的第一侧相连的也可以是 MU型标准光纤插头或其 他类型的标准光纤插头。
[31] 本发明各实施例中的卡槽件的第二端与适配器的第二侧相互配合的旋卡式可 拆卸固定连接结构也可以是在适配器的第二侧的安装孔内设大致呈" L"形的卡槽
, 在卡槽件上设置定位凸起。
[32] 本发明的光纤连接器的适配器的一侧连接标准光纤插头, 另一侧连接一简易 型的插头, 在保证连接的可靠性的前提下降低了连接器的成本, 具有很好的实 际意义和经济效益。
[33] 上面结合附图对本发明的实施例进行了描述, 但是本发明并不局限于上述的 具体实施方式, 上述的具体实施方式仅仅是示意性的, 而不是限制性的, 本领 域的普通技术人员在本发明的启示下, 在不脱离本发明宗旨和权利要求所保护 的范围情况下, 还可做出很多形式, 这些均属于本发明的保护之内。

Claims

权利要求书
一种光纤连接器, 其特征在于, 包括:
一适配器组件, 所述适配器组件包括一塑料材质的法兰以及位 于法兰内的准直件, 所述法兰具有第一侧以及与第一侧相对的第 二侧, 所述第一侧具有与标准光纤插头适配的连接部;
一简易光纤插头, 所述简易光纤插头包括塑胶材质的卡槽件、 以及塑料材质的弹性卡子锁紧件, 还包括一插针组件, 所述卡槽 件为空心柱体, 所述插针组件位于所述卡槽件内部, 所述卡槽件 的第一端与所述弹性卡子锁紧件固定连接, 所述卡槽件的第二端 与所述法兰的第二侧旋卡式可拆卸固定连接。
根据权利要求 1所述的光纤连接器, 其特征在于, 所述法兰的第二 侧具有与所述卡槽件的第二端适配的安装孔, 所述安装孔的孔壁 上设置有定位凸起, 所述卡槽件的第二端设置有与所述定位凸起 适配的大致呈 "L"形的卡槽。
根据权利要求 2所述的光纤连接器, 其特征在于, 所述定位凸起至 少为两个, 所述定位凸起沿所述安装孔的内壁的周向均匀分布。 根据权利要求 1所述的光纤连接器, 其特征在于, 所述法兰的第二 侧具有与所述卡槽件适配的安装孔, 所述安装孔的孔壁上设置有 大致呈 "L"形的卡槽, 所述卡槽件的第二端设置有与所述大致呈 "L "形的卡槽适配的定位凸起。
根据权利要求 4所述的光纤连接器, 其特征在于, 所述大致呈" L" 形的卡槽至少为两个, 所述大致呈" L"形的卡槽沿所述安装孔的内 壁的周向均匀分布。
根据权利要求 1至 5任一项所述的光纤连接器, 其特征在于, 所述 卡槽件的第一端的内壁上设置有扣位, 所述弹性卡子锁紧件具有 与所述扣位适配的倒扣。
根据权利要求 6所述的光纤连接器, 其特征在于, 所述扣位至少为 两个, 所述扣位沿所述卡槽件的内壁的周向均匀分布。 [Claim 8] 根据权利要求 6所述的光纤连接器, 其特征在于, 所述弹性卡子锁 紧件上设置有缺口。
[Claim 9] 根据权利要求 1所述的光纤连接器, 其特征在于, 所述标准光纤插 头为 FC型、 SC型、 LC型、 ST型、 或 MU型光纤插头。
[Claim 10] 根据权利要求 1所述的光纤连接器, 其特征在于, 所述插针组件包 括插针以及套设在插针上的弹簧。
PCT/CN2009/074421 2009-10-13 2009-10-13 一种光纤连接器 WO2011044724A1 (zh)

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