WO2016086668A1 - Couvercle anti-poussière et adaptateur - Google Patents

Couvercle anti-poussière et adaptateur Download PDF

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Publication number
WO2016086668A1
WO2016086668A1 PCT/CN2015/084250 CN2015084250W WO2016086668A1 WO 2016086668 A1 WO2016086668 A1 WO 2016086668A1 CN 2015084250 W CN2015084250 W CN 2015084250W WO 2016086668 A1 WO2016086668 A1 WO 2016086668A1
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WO
WIPO (PCT)
Prior art keywords
cover
dust cover
pair
adapter
frame body
Prior art date
Application number
PCT/CN2015/084250
Other languages
English (en)
Chinese (zh)
Inventor
阎雄伟
李媛媛
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 WO2016086668A1 publication Critical patent/WO2016086668A1/fr

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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
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means

Definitions

  • the present invention relates to the field of optical fiber adapters, and more particularly to a dust cover and an adapter having the same.
  • a fiber optic adapter In order to realize the flexible connection between different devices and systems, an early development of a device for active connection between optical fibers and optical fibers is called a fiber optic adapter.
  • the main applications include communication, local area network (LAN), Fiber To The Home (FTTH), high quality video transmission, fiber optic sensing, test instrumentation, Community Antenna Television (CATV), etc.
  • the existing fiber optic adapters generally use plug-in plastic plugs for protection and dustproofing at the ports.
  • the interfaces at one end are often in multiple plug-and-plug states, and the ceramic bushings in the adapters are strictly required. Do a good job of dust protection.
  • the port If the port is not in use, it needs to be covered with a protective cap, especially in a machine room with poor construction environment. If dust enters the casing, it will directly affect its connection loss, which will indirectly affect the transmission distance. important.
  • the fiber-optic adapter will be installed on each fiber-optic access panel of each household, as a network interface for daily use, and the number of plug-ins is many.
  • the optical fiber transmission work such as the eye-view port
  • the laser at work will burn the eyes, so it is necessary to cover the protective cap of the port in time.
  • the existing plug-in protective cap also has the following two disadvantages: First, it is easy to lose; Second, it is easy to be neglected, and it is not timely to pull out the connector fashion.
  • the technical problem to be solved by the present invention is to provide a dust cover with high reliability.
  • the present invention provides a dust cover comprising a cover body, a frame body and an elastic member, wherein the frame body has a channel formed at both ends, the frame body comprising a connection portion and an interface portion, the connection portion and the connection portion
  • the interface portions are connected to each other and communicated with each other, the connection portion is for connecting with an adapter body for providing plug insertion, the plug is inserted into the frame body and the adapter body is matched, a cover body is disposed inside the frame body and rotatably connected to the interface portion a wall, the elastic member is elastically connected between the interface portion and the cover body, and the cover body is rotated relative to the frame body to close or open an internal passage of the frame body.
  • the connecting portion comprises a main body, a cantilever and a hook
  • one side of the cantilever is connected to the main body
  • the other side of the cantilever is separated from the main body by a gap
  • the hook is located at the cantilever
  • the interface portion of the frame body includes a bottom wall, a top wall, and a pair of side walls connected between the bottom wall and the top wall, and the pair of side walls are respectively provided with a shaft hole.
  • the pair of shaft holes are respectively located at one end of the pair of side walls adjacent to the bottom wall; the cover body comprises a bottom edge, a top edge and a pair of side edges connected between the bottom edge and the top edge.
  • a rotating shaft is respectively protruded from the opposite sides, and the opposite rotating shafts are respectively located at one ends of the opposite sides near the bottom side; the opposite rotating shafts cooperate with the pair of shaft holes to realize the cover body and the seat
  • the rotating body is connected to the frame; the cover body is provided with a pair of slots, and the pair of slots are respectively adjacent to the pair of rotating shafts, and the pair of slots extend from the bottom edge to the middle of the cover body.
  • the cover body comprises a first surface and a second surface, when the cover body closes an internal passage of the frame body, the first surface faces a side of the connecting portion, and the second surface faces
  • the opening side of the interface portion is provided with a groove on the second surface, and the groove is used to prevent the cover body from contacting the ferrule of the plug when the plug is inserted into the interface portion.
  • the elastic element is a torsion spring
  • the cover body is further provided with a positioning post
  • the positioning post is located at the bottom edge
  • the torsion spring comprises a curling portion, a first abutting edge and a second abutting edge
  • the curling portion is positioned on the positioning post
  • the second abutting edge is abutting against the inner surface of the frame body
  • the cover body is provided with a positioning slot
  • the positioning slot is adjacent to the positioning post.
  • the first abutting edge is fastened in the positioning slot.
  • the first surface is provided with a receiving slot, the receiving slot extends from the bottom edge toward the top edge, and the positioning post faces the opening of the receiving slot on the bottom edge
  • the inner wall of the interface portion is provided with a step portion, the step portion includes a blocking surface, the blocking surface faces the direction of the connecting portion, when the cover body closes the internal passage of the frame body, The cover body abuts against the blocking surface.
  • the blocking surface is provided with a buffer layer, or a surface of the cover body on which the blocking surface abuts is provided with a buffer layer.
  • the frame body includes a front end surface, the front end surface is located at an open end of the interface portion, and the interface portion includes a bottom wall, a top wall, and a pair connected between the bottom wall and the top wall a side wall that is perpendicular to the bottom wall, the top wall, and the pair of side walls.
  • the frame body includes a front end surface, the front end surface is located at an open end of the interface portion, and the interface portion includes a bottom wall, a top wall, and a pair connected between the bottom wall and the top wall a side wall, the front end surface being perpendicular to the pair of side walls, and the front end surface being a slope inclined with respect to the bottom wall and the top wall.
  • the dust cover further includes a guiding portion, the guiding portion is located outside the frame body and protrudes from the front end surface, and the guiding portion is parallel or coplanar with the top wall.
  • the present invention provides an adapter, the adapter body, and the dust cover of any one of the preceding claims, wherein the dust cover is disposed at a socket of the adapter body, and the dust cover is disposed
  • the connecting portion is connected to the adapter body, and the cover of the dust cover can block the socket.
  • the adapter body is a square connector SC fiber adapter.
  • the dust cover and the adapter provided by the invention are suitable for the conventional universal SC fiber adapter, and only need to fit the connection portion outside the adapter body. It ensures that the optical and mechanical properties of the adapter body are not affected. Moreover, the cover of the dust cover of the present invention is disposed inside the frame, and the mounting structure between the cover and the cover and the frame is not visible from the outside, so that the dust cover has a small size, a neat appearance, and an attractive appearance. advantage.
  • FIG. 1 is a side view of an adapter provided by an embodiment of the present invention.
  • Figure 2 is a cross-sectional view of the adapter shown in Figure 1;
  • Figure 3 is a cross-sectional view of the adapter of Figure 1 in another direction;
  • FIG. 4 is a schematic view showing the dust cover of the adapter shown in FIG. 1 separated from the adapter body;
  • FIG. 5 is a side view of a dust cover with a built-in cover according to an embodiment of the present invention.
  • Figure 6 is a cross-sectional view of the dust cover shown in Figure 5;
  • Figure 7 is an exploded view of the dust cover shown in Figure 5;
  • FIG. 8 is a side view of a frame of a dust cover according to an embodiment of the present invention.
  • Figure 9 is a cross-sectional view of the frame shown in Figure 8.
  • Figure 10 is a cross-sectional view of the frame shown in Figure 8 in another direction;
  • FIG. 11 is a front elevational view of a cover of a dust cover according to an embodiment of the present invention.
  • Figure 12 is a side view of the cover body shown in Figure 11;
  • FIG. 13 is a schematic diagram of an elastic member of a dust cover according to an embodiment of the present invention.
  • Figure 14 is a schematic cross-sectional view showing the external plug inserted into the dust cover
  • FIG. 15 is a schematic view of a frame of a dust cover according to an embodiment of the present invention.
  • FIG. 16 is a schematic diagram of a frame of a dust cover according to another embodiment of the present invention.
  • the present invention relates to a dust cover 10 and an adapter 100 with the dust cover 10.
  • the dust cover 10 is disposed at the socket 21 of the adapter body 20 for shielding the socket. 21, can prevent dust and harmful lasers.
  • the external plug is inserted into the dust cover 10 and inserted into the socket 21 of the adapter body 20 to effect data transmission between the plug and the adapter body 20.
  • the adapter body 20 is a square connector (SC) fiber optic adapter 100.
  • the dust cover 10 includes a frame 12 , a cover 14 and an elastic member 16 .
  • FIG. 8 to 10 are schematic views showing the structure of the frame 12. Inside the frame 12, a channel 121 having openings at both ends is formed. Specifically, the frame 12 has a sleeve structure having a square cross section.
  • the box The body 12 includes a connecting portion 122 and an interface portion 124.
  • the connecting portion 122 and the interface portion 124 are connected to each other and communicate with each other.
  • the connecting portion 122 is for connecting with the adapter body 20.
  • the connecting portion The sleeve 122 is disposed on the outer surface of the adapter body 20, and the inner wall of the connecting portion 122 is attached to the outer surface of the adapter body 20, as shown in FIG.
  • the interface portion 124 is for providing a plug insertion, the plug is inserted into the frame 12 and the adapter body 20 is mated.
  • the frame 12 can be integrally formed by a single material or by a two-shot injection molding method.
  • the connecting portion 122 and the interface portion 124 are made of different materials.
  • the connecting portion 122 can be made of an elastically deformed silicone material, and the interface portion 124 is made of a hard material, so that the connecting portion 122 can be sleeved outside the adapter body 20 by its elastic deformability.
  • the surface can be fixed to the adapter body 20.
  • the cover 14 is disposed inside the frame 12 and is rotatably connected to an inner wall of the interface portion 124 .
  • the elastic member 16 is elastically coupled between the interface portion 124 and the cover 14. The rotation of the cover 14 relative to the frame 12 can close or open the internal passage 121 of the frame 12.
  • Fig. 6 shows a state in which no plug is inserted. In this state, the cover 14 closes the internal passage 121 of the frame 12 by the action of the elastic member 16.
  • the plug pushes the top cover 14 so that the cover 14 rotates relative to the frame 12, opening the internal passage 121 of the frame 12 for the plug to be inserted into the adapter body 20, and at the same time, the elastic member 16 is elastically deformed.
  • the elastic member 16 drives the cover 14 back to close the internal passage 121 of the frame 12.
  • the dust cover 10 of the present invention is applied to a conventional general-purpose SC fiber optic adapter, and only the connecting portion 122 needs to be placed outside the adapter body 20.
  • the fixed connection between the connecting portion 122 and the adapter body 20 can be fixedly connected between the connecting portion 122 and the adapter body 20 by means of screw fixing, snap fixing, glue preparation or the like.
  • the connection between the connecting portion 122 and the adapter 100 is realized by screw and glue fixing, the structure of the adapter body 20 does not need to be changed, and when the fastening is fixed by the snapping method, it is only necessary to increase the holding portion on the outer surface of the adapter body 20.
  • the structure does not change the structure of the other portions of the adapter body 20, so that the optical performance and mechanical properties of the adapter body 20 can be ensured.
  • the cover 14 of the dust cover 10 of the present invention is provided inside the frame 12, and the mounting structure between the cover 14 and the cover 14 and the frame 12 is not visible from the outside, so that the dust cover 10 has a volume. Small, clean and beautiful appearance.
  • the dust cover 10 and the adapter body 20 are connected and fixed by fastening.
  • the connecting portion 122 includes a main body 1222 , and cantilever 1224 and 1226 .
  • One side of the cantilever 1224 is coupled to the body 1222, and the other side of the cantilever 1224 is spaced apart from the body 1222 by a gap C, which is located inside the free end of the cantilever 1224, specifically, the cantilever
  • the 1224 has a rectangular shape, one side of which is connected to the main body 1222, and the other three sides are separated from the main body 1222 by a gap.
  • the free end of the cantilever 1224 is located on one side of the connecting body 1222, and 1226 is disposed inside the free end of the cantilever 1224.
  • the connecting portion 122 is coupled to the adapter body 20
  • the cantilever 1224 is elastically deformed such that the 1226 cooperates with the catch portion 22 on the adapter body 20, as shown in FIGS. 3 and 4. Show.
  • the specific structure of the latching portion 22 on the adapter body 20 is as follows: Referring to FIG. 4, the outer surface of the side wall of the adapter body 20 is provided with a stopper 222, and the two sides of the stopper 222 form recessed portions 221 and 223. During the installation of the dust cover 10 to the adapter body 20, after the 1226 enters one of the recesses 221, the stopper 222 is encountered, and then the stopper 222 forces the cantilever 1224 to elastically deform, so that the 1226 passes the block. The block 222 also falls into the other recessed portion 223, and the stopper 222 is caught in the gap C between the 1226 and the main body 1222 of the connecting portion 122. The stopper 222 blocks the 1226 to prevent the dust cover 10 from coming off the adapter main body 20.
  • the interface portion 124 of the frame 12 includes a bottom wall 1241 , a top wall 1243 , and a pair of side walls 1242 connected between the bottom wall 1241 and the top wall 1243 .
  • the pair of side walls 1242 are respectively provided with shaft holes 1246, and the pair of shaft holes 1246 are respectively located at one ends of the pair of side walls 1242 adjacent to the bottom wall 1241.
  • the cover 14 includes a bottom edge 141, a top edge 143, and a pair of side edges 142 connected between the bottom edge 141 and the top edge 143.
  • a rotating shaft 145 is respectively protruded, and the pair of rotating shafts 145 are respectively located at one ends of the pair of side edges 142 near the bottom side 141.
  • the pair of rotating shafts 145 cooperate with the pair of shaft holes 1246 to achieve a rotational connection between the cover body 14 and the frame body 12.
  • the cover 14 is provided with a pair of slots 146, The pair of slots 146 are respectively adjacent to the pair of rotating shafts 145.
  • the split slots 146 extend from the bottom edge 141 to the middle of the cover body 14.
  • the slots 146 are disposed so that the portion of the rotating shaft 145 can face the slotted portion
  • the direction of the 146 is elastically offset, and the cover body 14 can be easily attached to the frame body 12.
  • the pair of rotating shafts 145 can be elastically deformed in the direction of the slot 146 under the action of an external force.
  • the shaft 145 is forced into the shaft hole 1246 on the frame 12.
  • the cover 14 includes a first surface 147 and a second surface 148.
  • the cover 14 When the cover 14 closes the internal passage 121 of the frame 12, the cover 14 is inclined with respect to the top wall 1243 and the bottom wall 1241 of the frame 12.
  • the first surface 147 faces one side of the connecting portion 122
  • the second surface 148 faces the opening side of the interface portion 124
  • the second surface 148 is provided with a recess 1482
  • the recess 1482 is provided in the middle of the second surface 148.
  • the plug 30 includes a sleeve 32 and a ferrule 34.
  • the ferrule 34 is mounted at a central position of the sleeve 32 and extends out of the sleeve 32.
  • the ferrule 34 is used for connection with the adapter body 20 for data transmission.
  • the sleeve 32 first contacts the second surface 148 of the cover 14. Since the cover 14 is inclined relative to the top wall 1243 and the bottom wall 1241 of the frame 12, the sleeve 32 of the plug 30 contacts.
  • the ferrule 34 faces the recess 1482, but remains between the ferrule 34 and the bottom of the recess 1482 due to the presence of the recess 1482.
  • the ferrule 34 and the cover 14 are not in contact with each other.
  • the dust cover 10 of the present invention can prevent the end surface of the ferrule 34 from being touched, and can avoid signal interference caused by the end face of the ferrule 34 being touched.
  • the elastic member 16 is a torsion spring, and the torsion spring includes a curling portion 162 , a first abutting edge 164 and a second abutting edge 166 .
  • the cover 14 is further provided with a positioning post 149 , the positioning post 149 is located at the bottom edge 141 , and the curling portion 162 is positioned on the positioning post 149 .
  • the cover body 14 is provided with a positioning slot 1492.
  • the positioning slot 1492 is adjacent to the positioning post 149.
  • the first abutting edge 164 is locked in the positioning slot 1492.
  • the second abutment The edge 166 abuts against the inner lower surface of the frame 12.
  • the first surface 147 is provided with a receiving groove 1472.
  • the receiving groove 1472 extends from the bottom edge 141 toward the top edge 143, and the positioning post 149 faces the receiving slot.
  • An opening in the bottom edge 141 of the cover 141 when the cover 14 opens the internal passage of the frame 12, the cover The body 14 is attached to the inner surface of the frame body 12, and the receiving groove 1472 is configured to receive the torsion spring when the first surface 147 is flat with the inner lower surface of the frame body 12 when the plug is fully inserted into the adapter body.
  • the second abutting edge 166 is configured to receive the torsion spring when the first surface 147 is flat with the inner lower surface of the frame body 12 when the plug is fully inserted into the adapter body.
  • the inner wall of the interface portion 124 is provided with a step portion 1248 including a blocking surface 1249 facing the direction of the connecting portion 122 when the cover 14 closes the internal passage 121 of the frame 12, the cover 14 abuts against the stop surface 1249.
  • the four sides of the cover 14 bottom edge, top edge, and pair
  • the sides are all coincident with the stop faces 1249.
  • the step portion 1248 is blocked on the outer side of the cover body 14, which effectively solves the problem of dust leakage and light leakage caused by the installation gap between the cover body 14 and the frame body 12.
  • the arrangement of the step portion 1248 enhances the dust cover of the present invention. 10 dustproof effect.
  • a buffer layer (not shown) is disposed on the stop surface 1249, or a buffer layer is disposed on a surface of the cover 14 where the stop surface 1249 abuts.
  • the provision of the buffer layer can prevent noise during the process of the dust cover 10 coming into contact with the frame 12.
  • the material of the buffer layer is an elastic material such as foam or rubber.
  • the buffer layer may be fixed to the stop surface 1249 or the surface of the cover 14 on which the stop surface 1249 abuts. It is also possible to integrally form the frame body 12 or the lid body 14 by means of two-shot injection molding.
  • the front end surface of the frame 12 of the dust cover 10 provided by the present invention can be designed into different structures according to different needs.
  • the frame body 12 includes a front end surface 126 at an open end of the interface portion 124 , and the interface portion 124 includes a bottom wall 1241 and a top wall. 1243 and a pair of side walls 1242 connected between the bottom wall 1241 and the top wall 1243.
  • the front end surface 126 is perpendicular to the bottom wall 1241, the top wall 1243 and the pair of side walls 1242.
  • the frame 12 includes a front end surface 126, the front end surface 126 is located at the open end of the interface portion 124, and the interface portion 124 includes a bottom wall 1241 and a top wall. 1243 and a pair of side walls 1242 connected between the bottom wall 1241 and the top wall 1243, the front end surface 126 is perpendicular to the pair of side walls 1242, and the front end surface 126 is opposite to the bottom wall 1241 and a sloped surface of the top wall 1243.
  • the size of the top wall 1243 is smaller than the bottom wall 1241.
  • the design of the inclined front end face 126 is advantageous for increasing the pull-out insertion Handheld area for the first 30 hours, easy to plug and unplug.
  • the present embodiment is based on the second embodiment, in which the structure of the guide portion 128 is added, and the guide portion 128 is located outside the frame 12 and is protruded from The front end surface 126, the guiding portion 128 is parallel or coplanar with the top wall 1243.
  • the provision of the guide 128 provides a guiding effect for the insertion of the plug 30.

Abstract

L'invention concerne un couvercle anti-poussière (10), comprenant un corps (14) de couvercle, un cadre (12) et un élément élastique (16) ; une partie intérieure du cadre (12) étant pourvue d'un canal (121) comportant une ouverture au niveau de chacune de deux extrémités ; le cadre (12) comprenant une partie de connexion (122) et une partie de jonction (124) ; la partie de connexion (122) et la partie de jonction (124) étant reliées l'une à l'autre et leurs parties intérieures étant en communication l'une avec l'autre ; la partie de connexion (122) étant utilisée pour connecter un corps d'adaptateur (20) ; la partie de jonction (124) étant utilisée pour recevoir une fiche ; la fiche étant reçue dans le cadre (12) et ajustée au corps d'adaptateur (20) ; le corps (14) de couvercle est disposé à l'intérieur de la partie interne du cadre (12) et est relié de manière rotative à une paroi intérieure de la partie de jonction (124) ; l'élément élastique (16) étant relié de manière élastique entre la partie de jonction (124) et le corps (14) de couvercle ; le corps (14) de couvercle étant tourné par rapport au cadre (12) pour fermer ou ouvrir le canal (121) interne du cadre (12).
PCT/CN2015/084250 2014-12-06 2015-07-16 Couvercle anti-poussière et adaptateur WO2016086668A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410737770.4 2014-12-06
CN201410737770 2014-12-06

Publications (1)

Publication Number Publication Date
WO2016086668A1 true WO2016086668A1 (fr) 2016-06-09

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Application Number Title Priority Date Filing Date
PCT/CN2015/084250 WO2016086668A1 (fr) 2014-12-06 2015-07-16 Couvercle anti-poussière et adaptateur

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WO (1) WO2016086668A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109738998A (zh) * 2019-01-31 2019-05-10 杭州通达互联科技有限公司 一种两段式特殊防盗光缆分纤箱及防盗组件

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6796719B2 (en) * 2001-12-14 2004-09-28 Hon Hai Precision Ind. Co., Ltd Optical fiber connector
JP2005077816A (ja) * 2003-09-01 2005-03-24 Japan Aviation Electronics Industry Ltd 光コネクタの遮光兼防塵シャッタ構造
US7340146B2 (en) * 2005-03-10 2008-03-04 Yazaki Corporation Dust shutter for an optical adapter
CN101329430A (zh) * 2007-06-20 2008-12-24 新确有限公司 闸门组件
CN103091789A (zh) * 2011-10-27 2013-05-08 东侑光电股份有限公司 光纤适配器的防护盖
CN103543500A (zh) * 2012-07-17 2014-01-29 深圳日海通讯技术股份有限公司 光纤适配器

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6796719B2 (en) * 2001-12-14 2004-09-28 Hon Hai Precision Ind. Co., Ltd Optical fiber connector
JP2005077816A (ja) * 2003-09-01 2005-03-24 Japan Aviation Electronics Industry Ltd 光コネクタの遮光兼防塵シャッタ構造
US7340146B2 (en) * 2005-03-10 2008-03-04 Yazaki Corporation Dust shutter for an optical adapter
CN101329430A (zh) * 2007-06-20 2008-12-24 新确有限公司 闸门组件
CN103091789A (zh) * 2011-10-27 2013-05-08 东侑光电股份有限公司 光纤适配器的防护盖
CN103543500A (zh) * 2012-07-17 2014-01-29 深圳日海通讯技术股份有限公司 光纤适配器

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109738998A (zh) * 2019-01-31 2019-05-10 杭州通达互联科技有限公司 一种两段式特殊防盗光缆分纤箱及防盗组件

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