WO2011150569A1 - Centering structure for optical fiber connector - Google Patents

Centering structure for optical fiber connector Download PDF

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Publication number
WO2011150569A1
WO2011150569A1 PCT/CN2010/073524 CN2010073524W WO2011150569A1 WO 2011150569 A1 WO2011150569 A1 WO 2011150569A1 CN 2010073524 W CN2010073524 W CN 2010073524W WO 2011150569 A1 WO2011150569 A1 WO 2011150569A1
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WO
WIPO (PCT)
Prior art keywords
centering
groove
substrate
optical fiber
guiding
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PCT/CN2010/073524
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French (fr)
Chinese (zh)
Inventor
王七月
夏志刚
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深圳日海通讯技术股份有限公司
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Priority to PCT/CN2010/073524 priority Critical patent/WO2011150569A1/en
Publication of WO2011150569A1 publication Critical patent/WO2011150569A1/en

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    • 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
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3801—Permanent connections, i.e. wherein fibres are kept aligned by mechanical means
    • G02B6/3806—Semi-permanent connections, i.e. wherein the mechanical means keeping the fibres aligned allow for removal of the fibres
    • 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
    • G02B6/36—Mechanical coupling means
    • G02B6/3628—Mechanical coupling means for mounting fibres to supporting carriers
    • G02B6/3632—Mechanical coupling means for mounting fibres to supporting carriers characterised by the cross-sectional shape of the mechanical coupling means
    • G02B6/3636—Mechanical coupling means for mounting fibres to supporting carriers characterised by the cross-sectional shape of the mechanical coupling means the mechanical coupling means being grooves
    • 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
    • G02B6/36—Mechanical coupling means
    • G02B6/3628—Mechanical coupling means for mounting fibres to supporting carriers
    • G02B6/3648—Supporting carriers of a microbench type, i.e. with micromachined additional mechanical structures
    • G02B6/3652—Supporting carriers of a microbench type, i.e. with micromachined additional mechanical structures the additional structures being prepositioning mounting areas, allowing only movement in one dimension, e.g. grooves, trenches or vias in the microbench surface, i.e. self aligning supporting carriers
    • 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
    • G02B6/36—Mechanical coupling means
    • G02B6/3628—Mechanical coupling means for mounting fibres to supporting carriers
    • G02B6/3684—Mechanical coupling means for mounting fibres to supporting carriers characterised by the manufacturing process of surface profiling of the supporting carrier

Definitions

  • the present invention relates to the field of physical connection technology for optical communication, and more particularly to a centering structure for a fiber optic connector.
  • the centering structure of the fiber optic connector can be roughly divided into two types: centering and active centering with precision components.
  • centering high-precision components
  • the support sleeve of the plug is made of stainless steel, glass or ceramic stainless steel, ceramic sleeve, molded glass fiber plastic and other materials.
  • the centering end of the plug is ground and the other end typically uses a bend limiting member to support the fiber or fiber optic cord to relieve stress.
  • the sleeve for coupling centering is generally made of two semi-synthetic, fastened cylindrical members made of ceramic, fiberglass reinforced plastic (ERP) or metal.
  • ERP fiberglass reinforced plastic
  • Such connectors require high precision in the processing of the plug and sleeve coupling components and require ultra-high precision molding or machining processes.
  • Active centering connectors have lower precision requirements for components and can be manufactured in a low cost, common process.
  • an optical instrument microscope, visible light source, etc.
  • an index matching material is also required. Since the technical requirements of the optical fiber network are very complicated, the above active alignment method is not used much, and the precision component alignment is mainly adopted.
  • a connector centering in an active centering manner is disclosed, the connected adapter being constituted by a aligning member, and an outer member holding the aligning member.
  • the aligning member is composed of a micro-sleeve in which each optical fiber is inserted through the surface, a V-groove substrate in which each V-groove of each micro-sleeve is held in parallel, and a holding plate for holding the V-groove substrate, and the like.
  • the components can be inserted to hold the front of each fiber.
  • the micro-sleeve is generally a capillary glass tube.
  • the size of the optical fiber is very small, the diameter of the capillary glass tube is also very small, and the quality thereof is difficult to ensure. Once the inside of the glass tube has an uneven area, the connection performance of the optical fiber is also greatly affected. , resulting in the performance of the connector is not required or unstable.
  • V-groove is a more common structure in fiber optic connectors.
  • fiber optic connectors with V-grooves are often used, such as a Chinese patent application CN200480009831.X and a Chinese patent ZL92104890.4, which are related to V-groove fibers.
  • the connector generally includes a substrate with a V-groove, and a cover plate adapted to the substrate. The optical fiber is placed in the V-groove from both ends of the V-groove, and is docked in the V-groove, and then the optical fiber is covered by the cover.
  • the connection method Pressing into the V-groove to fix the fiber, the connection method, the fiber is pressed into the V-groove by the cover plate to be fixed in the V-groove, and is not suitable for the field of fiber-optic connection requiring a detachable connection.
  • the technical solution adopted by the present invention to solve the technical problem is to construct a centering structure for a fiber optic connector, comprising a substrate, and a cover plate covering the substrate, the substrate having at least one cover plate After the substrate is pressed against the substrate, the fiber can freely enter and exit the centering groove, and the fiber enters the centering groove from both ends of the centering groove and is centered in the centering groove.
  • the substrate has a plurality of centering slots disposed in parallel.
  • the centering groove is a V-groove, a U-shaped groove, a semi-circular groove or a square groove.
  • the centering slot includes a guide section at both ends of the centering slot and a centering section connecting the two guide sections.
  • the guide segment has a guide bevel formed by chamfering.
  • the cover plate has a guiding structure facing the position of the guiding section of the centering groove of the substrate.
  • the guiding structure is a semi-conical surface provided on the cover.
  • an end surface of the substrate has a guiding limit structure.
  • the guiding limit structure is two studs or holes arranged in parallel.
  • the centering structure for a fiber optic connector of the present invention, further includes a clamp or frame for securing the cover and the substrate together.
  • the centering structure for an optical fiber connector embodying the present invention has the following advantageous effects: in the centering structure for optical fiber connection of the present invention, the substrate has free access to the optical fiber when the cover plate is pressed against the substrate. In the centering groove, the optical fiber enters the centering groove from both ends of the centering groove, and is centered in the centering groove by positioning of the centering groove.
  • the processing precision of the centering structure is not high, and it is easier to manufacture and manufacture. Can effectively reduce the cost of fiber optic connectors.
  • FIG. 1 is an exploded perspective view of a preferred embodiment of a centering structure for an optical fiber connector of the present invention
  • FIG. 2 is a schematic view of a mating of a substrate and a cover plate in a preferred embodiment of the centering structure for an optical fiber connector of the present invention
  • FIG. 3 is a schematic structural view of a cover plate in a preferred embodiment of the centering structure for an optical fiber connector of the present invention
  • Figure 4 is a schematic illustration of the alignment of an optical fiber in a preferred embodiment of the centering structure for an optical fiber connector of the present invention
  • Figure 5 is an exploded perspective view of a fiber optic connector having the centering structure of the present invention.
  • Figure 6 is a second structure of the centering groove in the centering structure of the optical fiber connector of the present invention.
  • Figure 7 is a third structure of the centering groove in the centering structure of the optical fiber connector of the present invention.
  • Figure 8 is a fourth structure of the centering groove in the centering structure of the optical fiber connector of the present invention.
  • Figure 9 is a fifth structure of the centering groove in the centering structure of the optical fiber connector of the present invention.
  • Figure 10 is a sixth configuration of the centering groove in the centering structure of the fiber optic connector of the present invention.
  • FIG. 1 is an exploded perspective view of a preferred embodiment of a centering structure for an optical fiber connection of the present invention, the centering structure including a substrate 100 and a cover 200, and for fixing the substrate 100 and the cover 200 Elastic clamps 310, 320 together.
  • the substrate 100 has eight parallel centering slots 110.
  • the centering slot 110 is a V slot, and the optical fiber may have two ends of the centering slot 110 into the centering slot. The alignment is achieved in 110.
  • the centering groove 110 on the substrate 100 of the present invention is different from the V-groove in the prior art fiber optic connector, except that in the prior art connector, the fiber is placed before the platen cover is placed on the centering groove.
  • the optical fiber is pressed into the V-groove by the pressing plate and fixed in the V-groove.
  • the V-groove has a clamping and fixing effect on the optical fiber.
  • the geometrical dimension of the V-groove cross-section is larger than the geometrical dimension of the optical fiber cross-section.
  • the centering slot 110 has guiding sections 111, 113 at both ends thereof, and a centering section 112 connecting the two guiding sections 111, 113.
  • the machining accuracy of the centering section 112 of the centering slot 110 is relatively high, and the precision of the guiding sections 111, 113 at both ends is relatively low, and the guiding sections 111, 113 have guiding slopes formed by chamfering.
  • a guiding structure is also provided at the position of the guiding sections 111, 113 of the centering groove 110 of the substrate 100 facing the substrate 200, which is a semi-conical surface 210 in this embodiment. Due to the presence of the guiding segments 111, 113 and the upper semi-conical surface 210 of the cover plate 200, even if the optical fibers are not completely aligned with the centering groove, they can enter the centering portion 112 under the action of the guiding segments 111, 113 and the semi-conical surface 210. The matching accuracy of the centering structure and the plug is relatively low.
  • the end surface of the substrate 100 is provided with a finite-position guiding structure.
  • the limiting guiding structure is two parallelly disposed protrusions 120.
  • the plug is adapted to be provided with a hole adapted to the guide post 120.
  • the guiding structure may also be two holes provided in the substrate 100, and the plug is correspondingly provided with two studs. The reason why two parallel positioning protrusions are arranged and disposed on the end surface of the substrate 100 is because the two protrusions can prevent the relative rotation of the plug and the substrate, and the design precision of the cover plate is relatively low.
  • the guiding and positioning structure can also be non-cylindrical, and can be a square column or a polygonal prism. At this time, only one positioning post or hole is designed on the end surface of the substrate to realize the function of the limit guiding.
  • Figure 4 is a schematic view showing the alignment of the optical fiber in the centering structure of the present invention.
  • the optical fiber 410 enters the centering portion of the centering slot from one end of the centering slot, and the optical fiber 420 enters the centering by the other end of the centering slot.
  • the centering section of the slot is centered with the fiber 410.
  • the substrate 100 and the cover 200 are fixed together by the elastic clips 310, 320.
  • the substrate 100 and the cover 200 may be fixed together by a frame. It can be understood that a plurality of structures can be realized by fixing the substrate 100 and the cover 200 together, and the clamps of various structures can be used to fix the two together.
  • Figure 5 shows a schematic view of a preferred embodiment of the centering structure for an optical fiber connector of the present invention for use in a connector.
  • the centering structure for the fiber optic connector of the present invention can be incorporated into an adapter that forms the fiber optic connector in the adapter flange. It can also be fixed on the backplane as a backplane adapter. When the backplane adapter is used, the optical fiber of the backplane can be pre-inserted into the centering slot of the substrate. The optical fiber at the plug end is inserted into the centering slot by the other end of the centering slot. in.
  • the centering groove on the substrate of the centering structure of the optical fiber connector of the present invention can be variously selected in addition to the V-groove.
  • the centering groove 110 shown in FIG. 7 and FIG. 8 is U. a structure of a groove or a square groove; or, for example, a semi-circular centering groove 110 is provided on the substrate 100 in FIG. 6, and the corresponding cover plate 200 is also provided as a semi-circular groove, and the cover plate 200 is covered on the substrate 100. Then, a circular groove structure is formed; and a double V-groove structure as shown in FIG.
  • a V-shaped centering groove 110 is disposed on the substrate 100, and a V-groove is disposed on the cover plate 200, and the upper and lower V-grooves are oppositely disposed;
  • the cover plate 200 shown in FIG. 10 is provided with a semicircular groove, and the substrate 100 is provided with a V-groove.
  • the material of the substrate and the cover plate in the centering structure of the optical fiber connector of the present invention is not particularly limited, and plastic, ceramic, glass or metal materials or the like can be used.

Abstract

A centering structure for an optical fiber connector includes a substrate (100) and a cover plate (200) covering the substrate (100), wherein the substrate (100) is provided with at least one centering groove (110) through which the optical fibers (410,420) can be moved in and out freely after the cover plate (200) is pressed tight on the substrate (100). The optical fibers (410,420) are moved into the centering groove (110) through two ends of the centering groove (110) and are centered in the centering groove (110). The centering structure has a low demand for manufacture precision, is easy to manufacture, and can reduce the cost of the optical fiber connector effectively.

Description

一种用于光纤连接器的对中结构  Centering structure for fiber optic connectors 技术领域 Technical field
本发明涉及光通讯的物理连接技术领域，更具体地说，涉及一种用于光纤连接器的对中结构。 The present invention relates to the field of physical connection technology for optical communication, and more particularly to a centering structure for a fiber optic connector.
背景技术 Background technique
光纤连接器的对中结构大概可以分为两种：用精密组件对中和主动对中。其中，高精密组件对中的方式是最常用的方式，这种方式是将光纤穿入并固定在插头的支撑套管中，将对中端口进行打磨或抛光处理后，在套筒耦合管总实现对中。插头的支撑套管采用不锈钢、镶嵌玻璃或陶瓷的不锈钢、陶瓷套管、铸模玻璃纤维塑料等材料制作。插头的对中端进行研磨处理，另一端通常采用弯曲限制构件来支撑光纤或光纤软线以释放应力。耦合对中用的套筒一般由陶瓷、玻璃纤维增强塑料（ERP）或金属等材料制成的两半合成、紧固的圆筒形构件做成的。为使的光纤对中，这类连接器对插头和套筒耦合组件的加工精度要求很高，需要采用超高精密铸模或机械加工工艺制作。主动对中连接器对组件的精密度要求较低，可按低成本的普通工艺制造。但装配时需要采用光学仪表（显微镜、可见光源等）辅助调节，以使纤芯对中。为获得较低的插入损耗和较高的回波损耗，还需要使用折射率匹配材料。由于光纤网络对于技术性要求非常复杂，上面的这种主动对准方式采用不多，主要采用精密组件对中的方式。The centering structure of the fiber optic connector can be roughly divided into two types: centering and active centering with precision components. Among them, the way of centering high-precision components is the most common way, which is to insert and fix the fiber into the support sleeve of the plug, after grinding or polishing the centering port, the coupling tube in the sleeve Achieve alignment. The support sleeve of the plug is made of stainless steel, glass or ceramic stainless steel, ceramic sleeve, molded glass fiber plastic and other materials. The centering end of the plug is ground and the other end typically uses a bend limiting member to support the fiber or fiber optic cord to relieve stress. The sleeve for coupling centering is generally made of two semi-synthetic, fastened cylindrical members made of ceramic, fiberglass reinforced plastic (ERP) or metal. In order to achieve fiber alignment, such connectors require high precision in the processing of the plug and sleeve coupling components and require ultra-high precision molding or machining processes. Active centering connectors have lower precision requirements for components and can be manufactured in a low cost, common process. However, it is necessary to use an optical instrument (microscope, visible light source, etc.) to assist in the adjustment to center the core. In order to achieve lower insertion loss and higher return loss, an index matching material is also required. Since the technical requirements of the optical fiber network are very complicated, the above active alignment method is not used much, and the precision component alignment is mainly adopted.
在一项日本专利申请（JP2000-19355A）中，公开了一种采用主动对中方式对中的连接器，该连接的适配器由调芯部件、和保持调芯部件的外廓部件构成。其中调芯部件由：各光纤被插通在其表面的各微型套筒、平行地形成保持各微型套筒的各V槽的V槽基板、和保持V槽基板的保持板等构成，调芯部件可以插通地保持各光纤的前部。微型套筒一般为毛细玻璃管，由于光纤的尺寸非常小，毛细玻璃管的直径也非常小，其质量难以保证，一旦玻璃管的内部有不平整的区域，对光纤的连接性能影响也比较大，导致连接器的性能达不到要求或不稳定。In a Japanese patent application (JP2000-19355A), a connector centering in an active centering manner is disclosed, the connected adapter being constituted by a aligning member, and an outer member holding the aligning member. The aligning member is composed of a micro-sleeve in which each optical fiber is inserted through the surface, a V-groove substrate in which each V-groove of each micro-sleeve is held in parallel, and a holding plate for holding the V-groove substrate, and the like. The components can be inserted to hold the front of each fiber. The micro-sleeve is generally a capillary glass tube. Since the size of the optical fiber is very small, the diameter of the capillary glass tube is also very small, and the quality thereof is difficult to ensure. Once the inside of the glass tube has an uneven area, the connection performance of the optical fiber is also greatly affected. , resulting in the performance of the connector is not required or unstable.
此外，V槽是光纤连接器中较为常用的结构。例如，在一些非可拆卸光纤连接领域，经常会用到带有V槽的光纤连接器，如一项中国专利申请CN200480009831.X以及一项中国专利ZL92104890.4中都有涉及到带有V槽光纤连接器，一般包括一个带有V槽的基板，和一个与基板适配的盖板，光纤由V槽的两端放入V槽中，并在V槽中实现对接，然后用盖板将光纤压入到V槽中实现光纤的固定，这种连接方法，光纤被盖板压入V槽从而固定在V槽内，不适于那些需要可拆卸连接的光纤连接领域。In addition, the V-groove is a more common structure in fiber optic connectors. For example, in some non-removable fiber optic connection fields, fiber optic connectors with V-grooves are often used, such as a Chinese patent application CN200480009831.X and a Chinese patent ZL92104890.4, which are related to V-groove fibers. The connector generally includes a substrate with a V-groove, and a cover plate adapted to the substrate. The optical fiber is placed in the V-groove from both ends of the V-groove, and is docked in the V-groove, and then the optical fiber is covered by the cover. Pressing into the V-groove to fix the fiber, the connection method, the fiber is pressed into the V-groove by the cover plate to be fixed in the V-groove, and is not suitable for the field of fiber-optic connection requiring a detachable connection.
发明内容 Summary of the invention
本发明的目的在于提供一种用于光纤连接器的对中结构，可以采用低成本的普通工艺制造，降低连接器的制造成本。SUMMARY OF THE INVENTION It is an object of the present invention to provide a centering structure for an optical fiber connector that can be manufactured using a low cost common process to reduce the manufacturing cost of the connector.
本发明解决其技术问题所采用的技术方案是：构造一种用于光纤连接器的对中结构，包括一基板,以及盖在所述基板上的盖板，所述基板至少具有一条在盖板压紧在基板上之后光纤可以自由进出的对中槽，光纤由对中槽的两端进入所述对中槽并在所述对中槽内对中。The technical solution adopted by the present invention to solve the technical problem is to construct a centering structure for a fiber optic connector, comprising a substrate, and a cover plate covering the substrate, the substrate having at least one cover plate After the substrate is pressed against the substrate, the fiber can freely enter and exit the centering groove, and the fiber enters the centering groove from both ends of the centering groove and is centered in the centering groove.
在本发明所述的用于光纤连接器的对中结构中，所述基板具有多条平行设置的对中槽。In the centering structure for a fiber optic connector of the present invention, the substrate has a plurality of centering slots disposed in parallel.
在本发明所述的用于光纤连接器的对中结构中，所述对中槽为V槽、U形槽、半圆槽或方形槽。In the centering structure for an optical fiber connector of the present invention, the centering groove is a V-groove, a U-shaped groove, a semi-circular groove or a square groove.
在本发明所述的用于光纤连接器的对中结构中，所述对中槽包括位于对中槽两端的导向段以及连接两导向段的对中段。In the centering structure for a fiber optic connector of the present invention, the centering slot includes a guide section at both ends of the centering slot and a centering section connecting the two guide sections.
在本发明所述的用于光纤连接器的对中结构中，所述导向段具有由倒角形成的导向斜面。In the centering structure for a fiber optic connector of the present invention, the guide segment has a guide bevel formed by chamfering.
在本发明所述的用于光纤连接器的对中结构中，所述盖板正对所述基板的对中槽的导向段的位置具有导向结构。In the centering structure for an optical fiber connector of the present invention, the cover plate has a guiding structure facing the position of the guiding section of the centering groove of the substrate.
在本发明所述的用于光纤连接器的对中结构中，所述导向结构为设置在盖板上的半圆锥面。In the centering structure for an optical fiber connector of the present invention, the guiding structure is a semi-conical surface provided on the cover.
在本发明所述的用于光纤连接器的对中结构中，所述基板的端面具有导向限位结构。In the centering structure for an optical fiber connector of the present invention, an end surface of the substrate has a guiding limit structure.
在本发明所述的用于光纤连接器的对中结构中，所述导向限位结构为两个平行设置的凸柱或孔。In the centering structure for a fiber optic connector of the present invention, the guiding limit structure is two studs or holes arranged in parallel.
在本发明所述的用于光纤连接器的对中结构中，所述对中结构还包括用于将所述盖板和基板固定在一起的夹具或框套。In the centering structure for a fiber optic connector of the present invention, the centering structure further includes a clamp or frame for securing the cover and the substrate together.
实施本发明的用于光纤连接器的对中结构，具有以下有益效果：在本发明的用于光纤连接的对中结构中，基板上具有在盖板压紧在基板上时光纤能自由进出的对中槽，光纤由对中槽的两端进入到对中槽中，并在依靠对中槽的定位在对中槽中对中，这种对中结构的加工精度要求不高，更易加工制造，可以有效降低光纤连接器的成本。The centering structure for an optical fiber connector embodying the present invention has the following advantageous effects: in the centering structure for optical fiber connection of the present invention, the substrate has free access to the optical fiber when the cover plate is pressed against the substrate. In the centering groove, the optical fiber enters the centering groove from both ends of the centering groove, and is centered in the centering groove by positioning of the centering groove. The processing precision of the centering structure is not high, and it is easier to manufacture and manufacture. Can effectively reduce the cost of fiber optic connectors.
附图说明 DRAWINGS
下面将结合附图及实施例对本发明作进一步说明，附图中：The present invention will be further described below in conjunction with the accompanying drawings and embodiments, in which:
图1是本发明的用于光纤连接器的对中结构的优选实施例的分解示意图；1 is an exploded perspective view of a preferred embodiment of a centering structure for an optical fiber connector of the present invention;
图2是本发明的用于光纤连接器的对中结构的优选实施中基板和盖板配合的示意图；2 is a schematic view of a mating of a substrate and a cover plate in a preferred embodiment of the centering structure for an optical fiber connector of the present invention;
图3是本发明的用于光纤连接器的对中结构的优选实施例中盖板的结构示意图；3 is a schematic structural view of a cover plate in a preferred embodiment of the centering structure for an optical fiber connector of the present invention;
图4是光纤在本发明的用于光纤连接器的对中结构的优选实施中对中的示意图；Figure 4 is a schematic illustration of the alignment of an optical fiber in a preferred embodiment of the centering structure for an optical fiber connector of the present invention;
图5是具有本发明的对中结构的光纤连接器的分解示意图；Figure 5 is an exploded perspective view of a fiber optic connector having the centering structure of the present invention;
图6是本发明的用于光纤连接器的对中结构中对中槽的第二种结构；Figure 6 is a second structure of the centering groove in the centering structure of the optical fiber connector of the present invention;
图7是本发明的用于光纤连接器的对中结构中对中槽的第三种结构；Figure 7 is a third structure of the centering groove in the centering structure of the optical fiber connector of the present invention;
图8是本发明的用于光纤连接器的对中结构中对中槽的第四种结构；Figure 8 is a fourth structure of the centering groove in the centering structure of the optical fiber connector of the present invention;
图9是本发明的用于光纤连接器的对中结构中对中槽的第五种结构Figure 9 is a fifth structure of the centering groove in the centering structure of the optical fiber connector of the present invention
图10是本发明的用于光纤连接器的对中结构中对中槽的第六种结构。Figure 10 is a sixth configuration of the centering groove in the centering structure of the fiber optic connector of the present invention.
具体实施方式 detailed description
为了对本发明的技术特征、目的和效果有更加清楚的理解，现对照附图详细说明本发明的具体实施方式。For a better understanding of the technical features, objects and effects of the present invention, the embodiments of the present invention are described in detail with reference to the accompanying drawings.
如图1所示，为本发明的用于光纤连接的对中结构的一个优选实施例的分解示意图，该对中结构包括基板100和盖板200，以及用于将基板100和盖板200固定在一起的弹性夹具310、320。在本实施例中，基板100上具有8条平行设置的对中槽110，在本实施例中，对中槽110为V槽，光纤可有由对中槽110的两端进入到对中槽110中实现对中。本发明中的基板100上的对中槽110与现有技术的光纤连接器中的V槽不同，不同之处在于，现有技术的连接器中，光纤在压板盖在对中槽上之前放入V槽，光纤依靠压板压入V槽并固定在V槽中，V槽对光纤有一个夹持固定的作用，而在本实施例中，V槽截面的几何尺寸大于光纤截面的几何尺寸，盖板200盖在基板100上之后，光纤仍然可以自用进出对中槽110，在本发明中，V槽仅仅起到定位的作用，使光纤的端面能够在V槽中对准在一起。1 is an exploded perspective view of a preferred embodiment of a centering structure for an optical fiber connection of the present invention, the centering structure including a substrate 100 and a cover 200, and for fixing the substrate 100 and the cover 200 Elastic clamps 310, 320 together. In this embodiment, the substrate 100 has eight parallel centering slots 110. In this embodiment, the centering slot 110 is a V slot, and the optical fiber may have two ends of the centering slot 110 into the centering slot. The alignment is achieved in 110. The centering groove 110 on the substrate 100 of the present invention is different from the V-groove in the prior art fiber optic connector, except that in the prior art connector, the fiber is placed before the platen cover is placed on the centering groove. In the V-groove, the optical fiber is pressed into the V-groove by the pressing plate and fixed in the V-groove. The V-groove has a clamping and fixing effect on the optical fiber. In the embodiment, the geometrical dimension of the V-groove cross-section is larger than the geometrical dimension of the optical fiber cross-section. After the cover 200 is placed on the substrate 100, the optical fibers can still be used in and out of the centering slot 110. In the present invention, the V-grooves only serve to position the end faces of the optical fibers in the V-grooves.
为了使光纤能够较为容易的进入到对中槽110中，在本实施例中，对中槽110的两端具有导向段111、113，以及连接两导向段111、113的对中段112，光纤在对中段112中对中，对中槽110的对中段112的加工精度要求相对较高，两端的导向段111、113的精度要求相对较低，导向段111、113具有由倒角形成的导向斜面，光纤插入对中槽110时，光纤可以顺着导向段111、113的导向斜面滑入到对中段112。进一步的，在盖板200正对基板100的对中槽110的导向段111、113的位置也设有导向结构，该导向结构在本实施例中为半圆锥面210。由于导向段111、113，以及盖板200上半圆锥面210的存在，即使光纤没有完全对准对中槽，也可以在导向段111、113以及半圆锥面210的作用下进去到对中段112，对对中结构和插头的配合精度要求相对较低。In order to enable the optical fiber to enter the centering slot 110 relatively easily, in the embodiment, the centering slot 110 has guiding sections 111, 113 at both ends thereof, and a centering section 112 connecting the two guiding sections 111, 113. For the centering of the middle section 112, the machining accuracy of the centering section 112 of the centering slot 110 is relatively high, and the precision of the guiding sections 111, 113 at both ends is relatively low, and the guiding sections 111, 113 have guiding slopes formed by chamfering. When the optical fiber is inserted into the centering slot 110, the optical fiber can slide into the centering section 112 along the guiding slope of the guiding sections 111, 113. Further, a guiding structure is also provided at the position of the guiding sections 111, 113 of the centering groove 110 of the substrate 100 facing the substrate 200, which is a semi-conical surface 210 in this embodiment. Due to the presence of the guiding segments 111, 113 and the upper semi-conical surface 210 of the cover plate 200, even if the optical fibers are not completely aligned with the centering groove, they can enter the centering portion 112 under the action of the guiding segments 111, 113 and the semi-conical surface 210. The matching accuracy of the centering structure and the plug is relatively low.
为了使对中结构与光纤连接器的插头可以很好的配合，基板100的端面设置有限位导向结构，在本实施例中，该限位导向限位结构为两个平行设置的凸柱120，插头上则相适配的设置有与导向柱120适配的孔，实际中，该导向结构也可以为设置在基板100的两个孔，而插头则相应的设置有两个凸柱。之所以设置两个平行的定位凸柱，而且都设置在基板100的端面，是因为两个凸柱可以防止插头和基板相对转动，另外这样设计对盖板的加工精度要求比较低。可以理解的是，该导向定位结构也可以是非圆柱形的，可以是方柱或多棱柱，此时基板的端面只设计一个定位柱或孔即可实现限位导向的功能。In order to make the alignment of the alignment structure and the connector of the optical fiber connector, the end surface of the substrate 100 is provided with a finite-position guiding structure. In this embodiment, the limiting guiding structure is two parallelly disposed protrusions 120. The plug is adapted to be provided with a hole adapted to the guide post 120. In practice, the guiding structure may also be two holes provided in the substrate 100, and the plug is correspondingly provided with two studs. The reason why two parallel positioning protrusions are arranged and disposed on the end surface of the substrate 100 is because the two protrusions can prevent the relative rotation of the plug and the substrate, and the design precision of the cover plate is relatively low. It can be understood that the guiding and positioning structure can also be non-cylindrical, and can be a square column or a polygonal prism. At this time, only one positioning post or hole is designed on the end surface of the substrate to realize the function of the limit guiding.
图4示出了光纤在本发明的对中结构中实现对中的示意图，光纤410由对中槽的一端进入到对中槽的对中段，光纤420由对中槽的另一端进入到对中槽的对中段与光纤410实现对中。Figure 4 is a schematic view showing the alignment of the optical fiber in the centering structure of the present invention. The optical fiber 410 enters the centering portion of the centering slot from one end of the centering slot, and the optical fiber 420 enters the centering by the other end of the centering slot. The centering section of the slot is centered with the fiber 410.
需要指出的是，在本实施中，基板100和盖板200通过弹性夹310、320固定在一起，实际中，也可以采用框套将基板100和盖板200固定在一起。可以理解的是，将基板100和盖板200固定在一起有很多种结构可以实现，利用各种结构的夹具都可以将二者固定在一起。It should be noted that in the present embodiment, the substrate 100 and the cover 200 are fixed together by the elastic clips 310, 320. In practice, the substrate 100 and the cover 200 may be fixed together by a frame. It can be understood that a plurality of structures can be realized by fixing the substrate 100 and the cover 200 together, and the clamps of various structures can be used to fix the two together.
图5示出了本发明的用于光纤连接器的对中结构的优选实施例用在连接器中的示意图。Figure 5 shows a schematic view of a preferred embodiment of the centering structure for an optical fiber connector of the present invention for use in a connector.
本发明的用于光纤连接器的对中结构可以装入到适配法兰中组成光纤连接器的适配器。也可以固定在底板上作为底板适配器，作为底板适配器时，底板的光纤可以预插入到基板的对中槽中，插头端的光纤由对中槽的另一端插入到对中槽中与底板的光纤对中。The centering structure for the fiber optic connector of the present invention can be incorporated into an adapter that forms the fiber optic connector in the adapter flange. It can also be fixed on the backplane as a backplane adapter. When the backplane adapter is used, the optical fiber of the backplane can be pre-inserted into the centering slot of the substrate. The optical fiber at the plug end is inserted into the centering slot by the other end of the centering slot. in.
可以理解的是，本发明的用于光纤连接器的对中结构的基板上的对中槽除了V槽外，可以由多种选择，例如图7、图8示出的对中槽110为U形槽、或方槽的结构；或例如图6中在基板100上设置半圆形的对中槽110，盖板200上对应的也设置成半圆形槽，盖板200盖在基板100上之后形成圆槽结构；又如图9示出的双V槽结构，即基板100上设置有V形的对中槽110，盖板200上对应设置有V槽，上下V槽相对设置；又如图10所示的盖板200上设置半圆槽、基板100设置V槽的结构。对中槽的这些变形结构以及在此基础上的变形结构都属于本发明保护的范围。It can be understood that the centering groove on the substrate of the centering structure of the optical fiber connector of the present invention can be variously selected in addition to the V-groove. For example, the centering groove 110 shown in FIG. 7 and FIG. 8 is U. a structure of a groove or a square groove; or, for example, a semi-circular centering groove 110 is provided on the substrate 100 in FIG. 6, and the corresponding cover plate 200 is also provided as a semi-circular groove, and the cover plate 200 is covered on the substrate 100. Then, a circular groove structure is formed; and a double V-groove structure as shown in FIG. 9 is provided, that is, a V-shaped centering groove 110 is disposed on the substrate 100, and a V-groove is disposed on the cover plate 200, and the upper and lower V-grooves are oppositely disposed; The cover plate 200 shown in FIG. 10 is provided with a semicircular groove, and the substrate 100 is provided with a V-groove. These deformed structures of the center groove and the deformed structure based thereon are all within the scope of protection of the present invention.
本发明的用于光纤连接器的对中结构中基板以及盖板的材料并没有特殊限定，可以选用塑料、陶瓷、玻璃或金属材料等。The material of the substrate and the cover plate in the centering structure of the optical fiber connector of the present invention is not particularly limited, and plastic, ceramic, glass or metal materials or the like can be used.
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。The embodiments of the present invention have been described above with reference to the drawings, but the present invention is not limited to the specific embodiments described above, and the specific embodiments described above are merely illustrative and not restrictive, and those skilled in the art In the light of the present invention, many forms may be made without departing from the spirit and scope of the invention as claimed.

Claims (10)

  1. 一种用于光纤连接器的对中结构，其特征在于，包括一基板,以及盖在所述基板上的盖板，所述基板至少具有一条在盖板压紧在基板上之后光纤可以自由进出的对中槽，光纤由对中槽的两端进入所述对中槽并在所述对中槽内对中。 A centering structure for a fiber optic connector, comprising: a substrate; and a cover plate covering the substrate, the substrate having at least one fiber freely in and out after the cover plate is pressed against the substrate The centering slot, the fiber enters the centering slot from both ends of the centering slot and is centered in the centering slot.
  2. 根据权利要求1所述的用于光纤连接器的对中结构，其特征在于，所述基板具有多条平行设置的对中槽。 The centering structure for a fiber optic connector of claim 1 wherein said substrate has a plurality of centering slots disposed in parallel.
  3. 根据权利要求1或2所述的用于光纤连接器的对中结构，其特征在于，所述对中槽为V槽、U形槽、半圆槽或方形槽。 The centering structure for an optical fiber connector according to claim 1 or 2, wherein the centering groove is a V groove, a U-shaped groove, a semi-circular groove or a square groove.
  4. 根据权利要求3所述的用于光纤连接器的对中结构，其特征在于，所述对中槽包括位于对中槽两端的导向段以及连接两导向段的对中段。 A centering structure for an optical fiber connector according to claim 3, wherein said centering groove includes a guide section at both ends of the centering groove and a centering section connecting the two guide sections.
  5. 根据权利要求4所述的用于光纤连接器的对中结构，其特征在于，所述导向段具有由倒角形成的导向斜面。A centering structure for an optical fiber connector according to claim 4, wherein said guide segment has a guide bevel formed by chamfering.
  6. 根据权利要求4所述的用于光纤连接器的对中结构，其特征在于，所述盖板正对所述基板的对中槽的导向段的位置具有导向结构。 A centering structure for a fiber optic connector according to claim 4, wherein said cover plate has a guiding structure facing the position of the guiding section of the centering groove of said substrate.
  7. 根据权利要求6所述的用于光纤连接器的对中结构，其特征在于，所述导向结构为设置在盖板上的半圆锥面。 A centering structure for an optical fiber connector according to claim 6, wherein said guiding structure is a semi-conical surface provided on the cover.
  8. 根据权利要求1所述的用于光纤连接器的对中结构，其特征在于，所述基板的端面具有导向限位结构。 The centering structure for an optical fiber connector according to claim 1, wherein the end surface of the substrate has a guiding limit structure.
  9. 根据权利要求8所述的用于光纤连接器的对中结构，其特征在于，所述导向限位结构为两个平行设置的凸柱或孔。 The centering structure for an optical fiber connector according to claim 8, wherein the guiding limit structure is two protrusions or holes arranged in parallel.
  10. 根据权利要求1所述的用于光纤连接器的对中结构，其特征在于，所述对中结构还包括用于将所述盖板和基板固定在一起的夹具或框套。A centering structure for a fiber optic connector according to claim 1 wherein said centering structure further comprises a clamp or frame for securing said cover and substrate together.
    　　
PCT/CN2010/073524 2010-06-03 2010-06-03 Centering structure for optical fiber connector WO2011150569A1 (en)

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CN1117592A (en) * 1994-08-12 1996-02-28 古河电气工业株式会社 Method of collectively connecting multiple optical connectors and aligning and positioning jig for multiple optical connectors used in the method
JPH10123348A (en) * 1996-10-16 1998-05-15 Furukawa Electric Co Ltd:The Mechanical splicing device for optical fiber
JP2001033659A (en) * 1999-07-16 2001-02-09 Japan Aviation Electronics Industry Ltd Optical connector
CN1515918A (en) * 2003-08-28 2004-07-28 上海交通大学 Adaptive microtype optical fibre connector
CN1621879A (en) * 2003-11-27 2005-06-01 日本航空电子工业株式会社 Optical connector readily capable of connecting an optical fiber without damaging the optical fiber
CN201311500Y (en) * 2008-11-17 2009-09-16 浙江同星光电科技有限公司 Optical-fiber mechanical connector and substrate

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1117592A (en) * 1994-08-12 1996-02-28 古河电气工业株式会社 Method of collectively connecting multiple optical connectors and aligning and positioning jig for multiple optical connectors used in the method
JPH10123348A (en) * 1996-10-16 1998-05-15 Furukawa Electric Co Ltd:The Mechanical splicing device for optical fiber
JP2001033659A (en) * 1999-07-16 2001-02-09 Japan Aviation Electronics Industry Ltd Optical connector
CN1515918A (en) * 2003-08-28 2004-07-28 上海交通大学 Adaptive microtype optical fibre connector
CN1621879A (en) * 2003-11-27 2005-06-01 日本航空电子工业株式会社 Optical connector readily capable of connecting an optical fiber without damaging the optical fiber
CN201311500Y (en) * 2008-11-17 2009-09-16 浙江同星光电科技有限公司 Optical-fiber mechanical connector and substrate

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