WO2023209862A1 - コネクタ接続構造 - Google Patents

コネクタ接続構造 Download PDF

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Publication number
WO2023209862A1
WO2023209862A1 PCT/JP2022/019057 JP2022019057W WO2023209862A1 WO 2023209862 A1 WO2023209862 A1 WO 2023209862A1 JP 2022019057 W JP2022019057 W JP 2022019057W WO 2023209862 A1 WO2023209862 A1 WO 2023209862A1
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WO
WIPO (PCT)
Prior art keywords
connector
magnetic structure
magnetic
cable
magnets
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PCT/JP2022/019057
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English (en)
French (fr)
Japanese (ja)
Inventor
博正 田野辺
光太 鹿間
雄三 石井
芳行 土居
Original Assignee
日本電信電話株式会社
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.)
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Application filed by 日本電信電話株式会社 filed Critical 日本電信電話株式会社
Priority to JP2024517694A priority Critical patent/JPWO2023209862A1/ja
Priority to PCT/JP2022/019057 priority patent/WO2023209862A1/ja
Publication of WO2023209862A1 publication Critical patent/WO2023209862A1/ja

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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
    • 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
    • G02B6/40—Mechanical coupling means having fibre bundle mating means

Definitions

  • the present invention relates to a technology for connecting connectors to each other, and particularly to a connector connection structure that enables connection by magnetic force.
  • Data centers are hubs for accommodating a large amount of data traffic from inside and outside the country, and provide advanced network services 24 hours a day, 365 days a year, while making various connections with servers and network equipment.
  • Optical fiber communication technology has been introduced for connections between network devices in data centers, and multi-core optical connectors that connect multiple optical fibers at once are increasingly being introduced.
  • Ethernet registered trademark
  • switches have been introduced that can be equipped with multi-lane plug-in/out-type optical transceivers that require multi-core optical connectors, such as optical transceivers of 100G to 800G standards.
  • CPO Co-Packaged Optics
  • multi-core optical connectors will be actively used as optical connectors necessary for optical connections inside network equipment equipped with a huge number of optical fibers.
  • MPO Multi-fiber Push-On optical connectors are the most common (see Non-Patent Document 1 and Non-Patent Document 2).
  • FIG. 55 is a horizontal sectional view of a conventional MPO optical connector before ferrule connection
  • FIG. 56 is a vertical sectional view of the MPO optical connector of FIG. 55.
  • 55 and 56 show a form assumed to be adopted as a multi-lane optical transceiver.
  • the optical connector 101a is a receptacle whose position is fixed
  • the optical connector 101b is a plug that can be inserted into and removed from the receptacle.
  • the optical connectors 101a and 101b are equipped with MT ferrules 102a and 102b attached to the tips of multicore optical fibers 100a and 100b, respectively.
  • the MT ferrules 102a, 102b are formed with a plurality of microholes (not shown) into which the optical fibers 100a, 100b are inserted, and guide pin holes 103a, 103b for alignment.
  • the end surfaces of the optical fibers 100a, 100b protruding from the connection end surfaces of the MT ferrules 102a, 102b are butted against each other, and the protruding optical fibers 100a, 100b are elastically deformed, thereby stabilizing the multicore optical fibers 100a, 100b. transition to a state where optical connection is established.
  • the mechanical load required to butt the end faces of the optical fibers 100a and 100b is applied by the spring spring 105 provided in the optical connector 101b.
  • FIG. 57 As one method for solving such problems, a form of introducing a clip as shown in FIG. 57 has been proposed.
  • the connection end surfaces of the MT ferrules 102a and 102b are pressed together, and the end surfaces of the optical fibers 100a and 100b are pressed together.
  • the structure is such that it is in close contact with the In this configuration, since no spring is used, there is no need for a housing for accommodating the MT ferrule and the spring, and the optical connector can be miniaturized.
  • the configuration shown in FIG. 57 allows the optical connector to be miniaturized, since the clip 106 is made of sheet metal, the force for pressing the end surfaces of the optical fibers 100a and 100b together is insufficient. There is a problem that it is difficult to stably optically connect all the optical fibers 100a and 100b. The problem of realizing stable optical connections is becoming more difficult to solve these days as the number of optical fibers 100a and 100b tends to increase.
  • the present invention was made to solve the above problems, and an object of the present invention is to provide a connector connection structure that allows stable connection even when the number of cable cores is large.
  • the connector connection structure of the present invention includes a first connector attached to the tip of a first cable, and a second connector attached to the tip of a second cable and connectable to the first connector.
  • the first connector includes a first alignment component configured to secure the first cable and a first magnetic structure integrated with the first alignment component;
  • the second connector includes a second alignment component configured to secure the second cable, a second magnetic structure integrated with the second alignment component, and a second magnetic structure configured to secure the second cable.
  • a third magnetic structure disposed around the second cable on a side farther from the first connector than the body, the first magnetic structure being made of a soft magnetic material.
  • the second magnetic structure consists of a first magnet whose magnetization direction is set parallel to the longitudinal direction of the second cable, and the third magnetic structure is arranged in the through hole. is movable along the longitudinal direction of the second cable in a state where the second cable is passed through the cable, and the first connector and the second connector are connected, and the first cable and the second cable are connected to each other.
  • the second magnetic structure and the third magnetic structure approach the first magnetic structure, and the first magnetic structure
  • the present invention is characterized in that a magnetic circuit is formed with a path extending through the body, the second magnetic structure, and the third magnetic structure.
  • the second connector is in a state where it hangs over the first magnetic structure when connected to the first connector, so that the third magnetic structure
  • the present invention is characterized by further comprising a fastener that fixes the position of the third magnetic structure so that the structure approaches the first magnetic structure.
  • the second connector is arranged around the second cable on a side that is farther from the first connector than the third magnetic structure.
  • the third magnetic structure is connected to the first magnetic structure.
  • the fourth magnetic structure includes a second magnet having a magnetization direction different from the first magnet by 180 degrees, and the second cable is passed through a through hole of the second magnet.
  • the second cable is movable along the longitudinal direction of the second cable.
  • the third magnetic structure is a yoke made of a soft magnetic material with a recess formed in the end face on the first connector side, and the yoke is The second cable is movable along the longitudinal direction with the second cable passed through the through hole, and when the first connector and the second connector are connected.
  • the magnetic circuit is characterized in that a magnetic circuit is formed with the second magnetic structure and the yoke as a path.
  • the third magnetic structure includes a yoke made of a soft magnetic material having a recess formed in an end surface on the first connector side, and a yoke accommodated in the recess.
  • a third magnet which is fixed to the yoke so as to be fixed to the yoke, has the same magnetization direction as the first magnet, and has a stronger magnetic force than the first magnet;
  • the second cable is movable along the longitudinal direction while the second cable is passed through the second cable, and when the first connector and the second connector are connected, the second cable of the yoke is movable.
  • the second magnetic structure and the third magnet come into close contact with each other, and the second magnetic structure moves into the recess of the yoke.
  • a magnetic circuit is formed with the first magnetic structure, the second magnetic structure, the third magnet, and the yoke as a path.
  • the third magnet is attached such that an end opposite to the first connector penetrates the yoke, and the third magnet The third magnet is characterized in that an end portion of the third magnet is exposed on the end surface opposite to the connector.
  • one configuration example of the connector connection structure of the present invention further includes a guide pin for connecting the first connector and the second connector
  • the first alignment component includes a guide pin hole.
  • the first cable is fixed such that the end faces of the plurality of first cables are exposed on the connection end face of the ferrule
  • the second alignment part is a ferrule having a guide pin hole.
  • the second cable is fixed so that the end surfaces of the plurality of second cables are exposed on the connection end surface thereof, and when the first connector and the second connector are connected, the first and second cables are connected to each other.
  • the guide pin is inserted into each guide pin hole of the alignment component, and the guide pins are positioned so that the end surfaces of the first and second alignment components abut each other.
  • the first and second cables are optical fibers.
  • the second magnetic structure and the third magnetic structure Since the structure approaches the first magnetic structure and a magnetic circuit is formed with the first magnetic structure, second magnetic structure, and third magnetic structure as a path, a strong magnetic force is generated. Accordingly, it is possible to obtain a sufficient load to press the end faces of the first cable and the second cable together. As a result, in the present invention, even when the number of cores in the first cable and the second cable is large, it is possible to stably perform optical connection.
  • FIG. 1 is a perspective view of a connector connection structure according to a first embodiment of the present invention before connection.
  • FIG. 2 is a perspective view of the connector connection structure according to the first embodiment of the present invention before connection.
  • FIG. 3 is a perspective view of the connector connection structure according to the first embodiment of the present invention before connection.
  • FIG. 4 is a perspective view of the connector connection structure according to the first embodiment of the present invention before connection.
  • 5A and 5B are side views of the connector connection structure according to the first embodiment of the present invention before connection.
  • FIG. 6 is a plan view of the connector connection structure according to the first embodiment of the present invention before connection.
  • FIG. 7 is a plan view of the connector connection structure according to the first embodiment of the present invention before connection.
  • FIG. 1 is a perspective view of a connector connection structure according to a first embodiment of the present invention before connection.
  • FIG. 2 is a perspective view of the connector connection structure according to the first embodiment of the present invention before connection.
  • FIG. 3 is a perspective
  • FIG. 8 is a side view of the yoke and magnet according to the first embodiment of the invention.
  • FIG. 9 is a perspective view illustrating the connection procedure of the connector connection structure according to the first embodiment of the present invention.
  • FIG. 10 is a perspective view illustrating the connection procedure of the connector connection structure according to the first embodiment of the present invention.
  • FIG. 11 is a perspective view illustrating the connection procedure of the connector connection structure according to the first embodiment of the present invention.
  • FIG. 12 is a perspective view illustrating the connection procedure of the connector connection structure according to the first embodiment of the present invention.
  • 13A and 13B are side views illustrating the connection procedure of the connector connection structure according to the first embodiment of the present invention.
  • FIG. 14 is a plan view illustrating the connection procedure of the connector connection structure according to the first embodiment of the present invention.
  • FIG. 15 is a plan view illustrating the connection procedure of the connector connection structure according to the first embodiment of the present invention.
  • FIG. 16 is a perspective view illustrating the connection procedure of the connector connection structure according to the first embodiment of the present invention.
  • FIG. 17 is a perspective view illustrating the connection procedure of the connector connection structure according to the first embodiment of the present invention.
  • FIG. 18 is a perspective view illustrating the connection procedure of the connector connection structure according to the first embodiment of the present invention.
  • FIG. 19 is a perspective view illustrating the connection procedure of the connector connection structure according to the first embodiment of the present invention.
  • 20A and 20B are side views illustrating the connection procedure of the connector connection structure according to the first embodiment of the present invention.
  • FIG. 21 is a plan view illustrating the connection procedure of the connector connection structure according to the first embodiment of the present invention.
  • FIG. 22 is a plan view illustrating the connection procedure of the connector connection structure according to the first embodiment of the present invention.
  • FIG. 23 is a perspective view illustrating the connection procedure of the connector connection structure according to the first embodiment of the present invention.
  • FIG. 24 is a perspective view illustrating the connection procedure of the connector connection structure according to the first embodiment of the present invention.
  • FIG. 25 is a perspective view illustrating the connection procedure of the connector connection structure according to the first embodiment of the present invention.
  • FIG. 26 is a perspective view illustrating the connection procedure of the connector connection structure according to the first embodiment of the present invention.
  • FIG. 27A and 27B are side views illustrating the connection procedure of the connector connection structure according to the first embodiment of the present invention.
  • FIG. 28 is a side view illustrating the connection procedure of the connector connection structure according to the first embodiment of the present invention.
  • FIG. 29 is a plan view illustrating the connection procedure of the connector connection structure according to the first embodiment of the present invention.
  • FIG. 30 is a plan view illustrating the connection procedure of the connector connection structure according to the first embodiment of the present invention.
  • 31A and 31B are vertical cross-sectional views showing magnetic flux density vectors of the connector connection structure according to the first embodiment of the present invention.
  • FIG. 32 is a vertical cross-sectional view showing the magnetic flux density vector of the connector connection structure according to the first embodiment of the present invention.
  • FIG. 33 is a perspective view illustrating a disconnection procedure of the connector connection structure according to the first embodiment of the present invention.
  • FIG. 34 is a perspective view illustrating a disconnection procedure of the connector connection structure according to the first embodiment of the present invention.
  • FIG. 35 is a perspective view illustrating a disconnection procedure of the connector connection structure according to the first embodiment of the present invention.
  • FIG. 36 is a perspective view illustrating a disconnection procedure of the connector connection structure according to the first embodiment of the present invention.
  • FIG. 37 is a plan view illustrating a disconnection procedure of the connector connection structure according to the first embodiment of the present invention.
  • FIG. 38 is a perspective view illustrating a disconnection procedure of the connector connection structure according to the first embodiment of the present invention.
  • FIG. 39 is a perspective view illustrating a disconnection procedure of the connector connection structure according to the first embodiment of the present invention.
  • FIG. 40 is a plan view illustrating a disconnection procedure of the connector connection structure according to the first embodiment of the present invention.
  • FIG. 41 is a perspective view illustrating a disconnection procedure of the connector connection structure according to the first embodiment of the present invention.
  • FIG. 42 is a perspective view illustrating a disconnection procedure of the connector connection structure according to the first embodiment of the present invention.
  • FIG. 43 is a plan view illustrating a disconnection procedure of the connector connection structure according to the first embodiment of the present invention.
  • FIG. 44 is a perspective view illustrating a disconnection procedure of the connector connection structure according to the first embodiment of the present invention.
  • FIG. 45 is a perspective view illustrating a disconnection procedure of the connector connection structure according to the first embodiment of the present invention.
  • FIG. 46 is a plan view illustrating a disconnection procedure of the connector connection structure according to the first embodiment of the present invention.
  • FIG. 47 is a perspective view of the connector connection structure according to the second embodiment of the present invention after connection.
  • FIG. 48 is a perspective view of the connector connection structure according to the second embodiment of the present invention after connection.
  • FIG. 49 is a perspective view of the connector connection structure according to the second embodiment of the present invention after connection.
  • FIG. 50 is a perspective view of the connector connection structure according to the second embodiment of the present invention after connection.
  • 51A and 51B are side views of the connector connection structure according to the second embodiment of the present invention after connection.
  • FIG. 51A and 51B are side views of the connector connection structure according to the second embodiment of the present invention after connection.
  • FIG. 52 is a perspective view of the connector connection structure according to the third embodiment of the present invention after connection.
  • FIG. 53 is a perspective view of the connector connection structure according to the third embodiment of the present invention after connection.
  • 54A and 54B are side views of the connector connection structure according to the third embodiment of the present invention after connection.
  • FIG. 55 is a horizontal sectional view of a conventional MPO optical connector before ferrule connection.
  • FIG. 56 is a vertical sectional view of a conventional MPO optical connector before ferrule connection.
  • FIG. 57 is a vertical sectional view showing another form of a conventional MPO optical connector.
  • FIGS. 5A and 5B are side views of the connector connection structure before connection
  • FIG. 7 is a plan view of the connector connection structure before connection. 2 and 4 show the top and side surfaces of the optical connector as seen through.
  • FIG. 5B shows a side view of the optical connector.
  • FIG. 7 shows the top surface of the optical connector seen through.
  • the connector connection structure of this embodiment includes optical connectors 2a-1 and 2a-2 (first connectors) attached to the tips of a plurality of optical fibers 1a-1 and 1a-2 (first cables), Optical connectors 2b (second connectors) attached to the tips of multiple optical fibers 1b-1, 1b-2 (second cables), and ferrules of optical connectors 2a-1, 2a-2 and optical connector 2b. It is composed of guide pins 3-1 and 3-2 that connect them.
  • the optical connectors 2a-1 and 2a-2 are receptacles whose positions are fixed, and the optical connector 2b is a plug that can be inserted into and removed from the receptacle.
  • Optical connectors 2a-1, 2a-2 include ferrules 20a-1, 20a-2 (first alignment parts) attached to the tips of optical fibers 1a-1, 1a-2, and ferrules 20a-1, 20a-.
  • MIM Metal Injection Molding
  • molded bodies 22a-1, 22a-2 attached around the optical fibers 1a-1, 1a-2
  • MIM molded bodies 22a-1, 22a-2 attached around the optical fibers 1a-1, 1a-2. It is composed of an optical connector 2b and soft magnetic bodies 21a-1 and 21a-2 (first magnetic structures) fixed to the opposite end surface.
  • the optical connector 2b includes ferrules 20b-1 and 20b-2 (second alignment parts) attached to the tips of the optical fibers 1b-1 and 1b-2, and ferrules 20b-1 and 20b-2 attached around the ferrules 20b-1 and 20b-2.
  • magnets 21b-1, 21b-2 second magnetic structure
  • 1b-2 third magnetic structure
  • yokes 24b-1, 24b-2 third magnetic structure
  • the magnets 26b-1 and 26b-2 are arranged around the optical fibers 1b-1 and 1b-2 on the far side.
  • Each of the optical fibers 1a-1, 1a-2, 1b-1, and 1b-2 is a multicore optical fiber with 16 cores x 2 rows.
  • the number and arrangement of optical fibers need not be the same as in this embodiment.
  • the ferrules 20a-1, 20a-2, 20b-1, and 20b-2 are multi-core fibers each having a plurality of microholes into which the optical fibers 1a-1, 1a-2, 1b-1, and 1b-2 are inserted. It's a ferrule.
  • As the material for the ferrules 20a-1, 20a-2, 20b-1, 20b-2 silica glass, zirconia, ceramics, liquid crystal polymer, engineering plastics such as silica particle mixed resin, etc. can be used.
  • Ferrules 20a are attached to the ferrules 20a-1, 20a-2, 20b-1, and 20b-2 along the longitudinal direction (Z-axis direction) of the optical fibers 1a-1, 1a-2, 1b-1, and 1b-2, respectively.
  • -1, 20a-2, 20b-1, 20b-2, two guide pin holes 23a-1, 23a-2, 23b-1, 23b-2 are formed.
  • One optical fiber 1a-1, 1a-2 with the coating removed is inserted into each of the plurality of microholes in the ferrules 20a-1, 20a-2.
  • one optical fiber 1b-1, 1b-2 with the coating removed is inserted into each of the plurality of microholes in the ferrules 20b-1, 20b-2.
  • the optical fibers 1a-1, 1a-2, 1b-1, 1b-2 and the ferrules 20a-1, 20a-2, 20b-1, 20b-2 are fixed with an adhesive.
  • optical fibers 1a-1 and 1a-2 are positioned so as to slightly protrude from the connection end surfaces of the ferrules 20a-1 and 20a-2 on the optical connector 2b side, respectively.
  • optical fibers 1b-1 and 1b-2 are positioned so as to slightly protrude from the connection end faces of the ferrules 20b-1 and 20b-2 on the optical connectors 2a-1 and 2a-2 sides, respectively.
  • Through holes 29a-1 and 29a-2 are formed in the MIM molded bodies 22a-1 and 22a-2.
  • the ferrules 20a-1 and 20a-2 are attached so as to fit into the through holes 29a-1 and 29a-2.
  • the MIM molded bodies 22a-1 and 22a-2 are made of soft magnetic materials such as carbon steel, iron, nickel, Kovar, and SUS403.
  • the connection end surfaces of the ferrules 20a-1 and 20a-2 are positioned so as to slightly protrude from the end surfaces of the MIM molded bodies 22a-1 and 22a-2 on the optical connector 2b side.
  • the soft magnetic bodies 21a-1 and 21a-2 are made of magnetic metal materials such as carbon steel, iron, nickel, Kovar, and SUS403.
  • Width of the soft magnetic bodies 21a-1, 21a-2 in the horizontal direction (X-axis direction) perpendicular to the longitudinal direction (Z-axis direction) of the optical fibers 1a-1, 1a-2, 1b-1, 1b-2 is the same as the width of the MIM molded bodies 22a-1 and 22a-2.
  • the soft magnetic bodies 21a-1, 21a-2 are inserted into the MIM molded bodies 22a-1, 22a-2 with the optical fibers 1a-1, 1a-2 passed through the through holes 24a-1, 24a-2. It is fixed to the end surface opposite to the optical connector 2b.
  • As a method for joining the soft magnetic bodies 21a-1, 21a-2 and the MIM molded bodies 22a-1, 22a-2 there are methods such as adhesion and metal joining (solder, etc.).
  • the soft magnetic bodies 21a-1 and 21a-2 are provided with soft magnetic bodies 21a along the Z-axis direction so as to communicate with the guide pin holes 23a-1 and 23a-2 of the ferrules 20a-1 and 20a-2. -1 and 21a-2, two guide pin holes 25a-1 and 25a-2 are formed.
  • the widths of the magnets 21b-1 and 21b-2 in the X-axis direction are the same as the widths of the soft magnetic bodies 21a-1 and 21a-2 and the MIM molded bodies 22a-1 and 22a-2.
  • Recesses 28b-1 and 28b-2 are formed in the end faces of the magnets 21b-1 and 21b-2 on the optical connectors 2a-1 and 2a-2 side.
  • the ferrules 20b-1 and 20b-2 are provided in the recesses 28b-1 and 28b-2.
  • the connection end surfaces of the ferrules 20b-1 and 20b-2 are positioned so as to slightly protrude from the end surfaces of the magnets 21b-1 and 21b-2 on the optical connectors 2a-1 and 2a-2 side.
  • Methods for joining the ferrules 20a-1, 20a-2 and the magnets 21b-1, 21b-2 include bonding, mechanical fitting, and the like. Furthermore, through holes 29b-1 and 29b-2 through which the optical fibers 1b-1 and 1b-2 pass are formed along the Z-axis direction in the magnets 21b-1 and 21b-2.
  • FIG. 8 is a side view of the yoke 24b-1 and the magnet 22b-1.
  • Through holes 30b-1 and 30b-2 are formed in the yokes 24b-1 and 24b-2.
  • the magnets 22b-1 and 22b-2 are attached to the yokes 24b-1 and 24b-2 so that the ends opposite to the optical connectors 2a-1 and 2a-2 fit into the through holes 30b-1 and 30b-2. It is attached.
  • the magnets 22b-1, 22b-2 and the yokes 24b-1, 24b-2 may be bonded together by bonding, metal bonding (soldering, etc.), or the like.
  • Through holes 31b-1 and 31b-2 through which the optical fibers 1b-1 and 1b-2 pass are formed along the Z-axis direction in the magnets 22b-1 and 22b-2.
  • the through-holes 31b-1 and 31b-2 are set to a size that provides sufficient space for the optical fibers 1b-1 and 1b-2. Therefore, the magnets 22b-1, 22b-2 and the yokes 24b-1, 24b-2 are movable along the Z-axis direction.
  • recesses 32b-1 and 32b-2 are formed in the end surfaces of the yokes 24b-1 and 24b-2 on the optical connectors 2a-1 and 2a-2 side.
  • the magnets 22b-1, 22b-2 have through holes 30b-1, 30b-2 in the yokes 24b-1, 24b-2 at the ends opposite to the optical connectors 2a-1, 2a-2. 2, and the optical connectors 2a-1 and 2a-2 are arranged so that the portions thereof are accommodated in the recesses 32b-1 and 32b-2.
  • the size of the recesses 32b-1, 32b-2 in the height direction (Y-axis direction) perpendicular to the Z-axis direction is larger than the height of the magnets 21b-1, 21b-2, 22b-1, 22b-2. It is set to a large value. Therefore, the magnets 22b-1 and 22b-2 are accommodated in the recesses 32b-1 and 32b-2 with gaps formed between them and the yokes 24b-1 and 24b-2 in the Y-axis direction.
  • the depth of the recesses 32b-1 and 32b-2 in the Z-axis direction is determined by the length of the portions of the magnets 22b-1 and 22b-2 accommodated in the recesses 32b-1 and 32b-2 in the Z-axis direction and the magnet 21b. It is set to match the sum of the lengths of -1 and 21b-2 in the Z-axis direction.
  • the yokes 24b-1 and 24b-2 are made of a soft magnetic material such as carbon steel, iron, nickel, Kovar, or SUS403.
  • the fastener 25 is made of, for example, non-magnetic metal, liquid crystal polymer, engineering plastic such as resin containing silica particles, acrylic resin, or the like.
  • a hook portion 27 for fixing the positions of the yokes 24b-1, 24b-2 and the magnets 26b-1, 26b-2 is formed at the tip of the fastener 25 on the side of the optical connectors 2a-1, 2a-2. There is.
  • the width of the magnets 26b-1, 26b-2 in the X-axis direction is less than the width of the yokes 24b-1, 24b-2 and the magnets 21b-1, 21b-2, 22b-1, 22b-2.
  • the end faces of the magnets 26b-1 and 26b-2 on the opposite side from the optical connectors 2a-1 and 2a-2 are fixed to the fastener 25.
  • Methods for joining the fastener 25 and the magnets 26b-1 and 26b-2 include bonding, mechanical fitting, and the like.
  • the magnets 26b-1 and 26b-2 are provided with holes in the Z-axis direction so that the through holes 34b-1 and 34b-2, through which the optical fibers 1b-1 and 1b-2 pass, communicate with the through holes 33b-1 and 33b-2.
  • the through-holes 33b-1, 33b-2, 34b-1, and 34b-2 are set to a size with sufficient space for the optical fibers 1b-1 and 1b-2. Therefore, the fastener 25 and the magnets 26b-1 and 26b-2 are movable along the Z-axis direction.
  • magnets 21b-1, 21b-2, 22b-1, 22b-2, 26b-1, 26b-2 permanent magnets such as ferrite magnets, Samakovar magnets, neodymium magnets, etc. can be used.
  • the MIM molded body 22a is placed between the soft magnetic bodies 21a-1 and 21a-2. -1 and 22a-2, between magnets 21b-1 and 21b-2, between magnets 22b-1 and 22b-2, between yokes 24b-1 and 24b-2, between magnets 26b-1 and 26b-2 It is preferable that they be spaced apart from each other by a predetermined gap of at least about 1 mm in the X-axis direction.
  • FIGS. 9 to 12 are perspective views illustrating the connection procedure between the optical connectors 2a-1 and 2a-2 and the optical connector 2b
  • FIGS. 13A and 13B are side views illustrating the connection procedure
  • FIGS. 14 and 15 are the connection procedure
  • FIG. 10 and 12 show the top and side surfaces of the optical connector as seen through.
  • FIG. 13B shows a side view of the optical connector.
  • FIG. 15 shows the top surface of the optical connector seen through.
  • the optical connectors 2a-1 and 2a-2 are receptacles whose positions are fixed, and the optical connector 2b is a plug that can be inserted into and removed from the receptacle.
  • the operator who performs the connection work inserts the guide pins 3-1 one by one into the two guide pin holes 23a-1 of the ferrule 20a-1 of the optical connector 2a-1, and then inserts the guide pins 3-1 into the ferrule 20a-1 of the optical connector 2a-2. Insert the guide pins 3-2 into the guide pin holes 23a-2 of No. 2 one by one. It is desirable to use a non-magnetic material as the material for the guide pins 3-1 and 3-2.
  • the guide pin hole 23a-1 communicates with the guide pin hole 25a-1 of the soft magnetic body 21a-1, and the guide pin hole 23a-2 communicates with the guide pin hole 25a-2 of the soft magnetic body 21a-2. Therefore, the guide pin 3-1 is inserted into the guide pin holes 23a-1 and 25a-1, and the guide pin 3-2 is inserted into the guide pin holes 23a-2 and 25a-2.
  • the soft magnetic bodies 21a-1 and 21a-2 of the optical connectors 2a-1 and 2a-2 and the magnet 21b-1 of the optical connector 2b , 21b-2 When the operator brings the optical connector 2b close to the optical connectors 2a-1 and 2a-2, the soft magnetic bodies 21a-1 and 21a-2 of the optical connectors 2a-1 and 2a-2 and the magnet 21b-1 of the optical connector 2b , 21b-2.
  • the operator inserts the guide pins 3-1, 3-2 into the guide pin holes 23b-1, 23b-2 of the ferrules 20b-1, 20b-2 of the optical connector 2b, and removes the ferrules 20a-1, 20a-2. and the end faces of the ferrules 20b-1 and 20b-2 are butted against each other, and the end faces of the optical fibers 1a-1 and 1a-2 and the optical fibers 1b-1 and 1b-2 are butted against each other.
  • the positioning of the ferrules 20a-1, 20a-2 and the ferrules 20b-1, 20b-2 is performed using the guide pins 3-1, This is done by 3-2. Note that the positions of the guide pin holes 23b-1, 23b-2 in the ferrules 20b-1, 20b-2 and the fixed positions of the ferrules 20b-1, 20b-2 to the magnets 21b-1, 21b-2 are determined by the guide pin 3.
  • the positions of the soft magnetic bodies 21a-1, 21a-2, the MIM molded bodies 22a-1, 22a-2, and the magnets 21b-1, 21b-2 in the X-axis direction are set to match.
  • the magnets 21b-1 and 21b-2 of the optical connector 2b are short in length in the Z-axis direction. Therefore, the magnets 21b-1 and 21b-2 alone cannot provide sufficient magnetic force to press the end surfaces of the optical fibers 1a-1 and 1a-2 and the optical fibers 1b-1 and 1b-2.
  • the end faces of the ferrules 20a-1 and 20a-2 are positioned so as to slightly protrude from the end faces of the MIM molded bodies 22a-1 and 22a-2 on the optical connector 2b side, and the end faces of the magnets 21b-1 and 21b-2 are The end surfaces of the ferrules 20b-1 and 20b-2 are positioned so as to slightly protrude from the end surfaces of the optical connectors 2a-1 and 2a-2. Therefore, when the end surfaces of the ferrules 20a-1, 20a-2 and the ferrules 20b-1, 20b-2 come into contact with each other, the MIM molded bodies 22a-1, 22a-2 and the magnets 21b-1, 21b-2 There is a small gap between them.
  • FIGS. 16 to 19 are perspective views illustrating the connection procedure between the optical connectors 2a-1 and 2a-2 and the optical connector 2b
  • FIGS. 20A and 20B are side views illustrating the connection procedure
  • FIGS. 21 and 22 are the connection procedure
  • FIG. 17 and 19 show the top and side surfaces of the optical connector as seen through.
  • FIG. 20B shows a side view of the optical connector.
  • FIG. 22 shows the top surface of the optical connector seen through.
  • the magnets 22b-1, 22b-2 and the yokes 24b-1, 24b-2 have the optical fiber 1b-1 inserted into the through holes 31b-1, 31b-2 of the magnets 22b-1, 22b-2. , 1b-2, it is possible to move along the Z-axis direction. After bringing the end faces of the ferrules 20a-1, 20a-2 and ferrules 20b-1, 20b-2 into contact with each other, the operator moves the magnets 22b-1, 22b-2 and the yokes 24b-1, 24b-2 to Z. It is moved along the axial direction to approach the magnets 21b-1 and 21b-2.
  • the magnetization direction of the north and south poles of the magnets 21b-1 and 21b-2 and the magnetization direction of the magnets 22b-1 and 22b-2 are the same and are set to be parallel to the Z-axis direction. Further, the magnetic force of the magnets 22b-1 and 22b-2 is stronger than that of the magnets 21b-1 and 21b-2.
  • the depth in the Z-axis direction of the recesses 32b-1 and 32b-2 of the yokes 24b-1 and 24b-2 is the same as the depth of the portion of the magnet 22b-1 accommodated in the recesses 32b-1 and 32b-2. , 22b-2 in the Z-axis direction and the lengths of the magnets 21b-1 and 21b-2 in the Z-axis direction. Therefore, when the worker brings the magnets 22b-1, 22b-2 close to the magnets 21b-1, 21b-2, the magnets 22b-1, 22b-2 and the magnets 21b-1, 21b-2 are connected to the recess 32b-1. 1, 32b-2, the MIM molded bodies 22a-1, 22a-2 of the optical connectors 2a-1, 2a-2 and the yokes 24b-1, 24b-2 come into contact with each other.
  • FIGS. 23 to 26, 27A, 27B, and 28 to 30 are perspective views illustrating the connection procedure between the optical connectors 2a-1 and 2a-2 and the optical connector 2b
  • FIGS. 27A, 27B, and 28 are side views that are enlarged portions of FIG. 27A
  • FIG. 29 FIG. 30 is a plan view illustrating the connection procedure.
  • 24 and 26 show the top and side surfaces of the optical connector as seen through.
  • FIG. 27B shows a side view of the optical connector.
  • the fastener 25 is omitted.
  • FIG. 30 shows the top surface of the optical connector seen through.
  • the fastener 25 and the magnets 26b-1, 26b-2 are the through holes 33b-1, 33b-2 of the fastener 25 and the through holes 34b-1, 34b- of the magnets 26b-1, 26b-2.
  • the optical fibers 1b-1 and 1b-2 passed through the 2 it is possible to move along the Z-axis direction.
  • the operator attaches the fastener 25 and the magnet 26b. -1 and 26b-2 along the Z-axis direction to approach the yokes 24b-1 and 24b-2.
  • the magnetization directions of the N and S poles of the magnets 26b-1 and 26b-2 differ by 180 degrees from the magnetization directions of the magnets 21b-1, 21b-2, 22b-1, and 22b-2. Therefore, when the magnets 26b-1, 26b-2 are brought close to the yokes 24b-1, 24b-2, the magnets 26b-1, 26b-2 and the magnets 21b-1, 21b-2, 22b-1, 22b-2 A repulsive force acts between them. When the operator moves the fastener 25 and the magnets 26b-1 and 26b-2 closer to the yokes 24b-1 and 24b-2 while resisting the repulsive force, the hook portion 27 of the fastener 25 moves toward the soft magnetic material 21a. -1, 21a-2 on the opposite end of the optical connector 2b. In this way, the position of the optical connector 2b is fixed.
  • the length of the fastener 25 in the Z-axis direction from the end of the magnets 26b-1, 26b-2 opposite to the optical connectors 2a-1, 2a-2 to the hook portion 27 is equal to the length of the soft magnetic material 21a-1, 21a. -2 length, the length of MIM molded bodies 22a-1, 22a-2, the length of yokes 24b-1, 24b-2, and the length of magnets 26b-1, 26b-2, plus the predetermined length. is set to . Therefore, when the hook portion 27 is hooked onto the ends of the soft magnetic bodies 21a-1, 21a-2, there is a predetermined length between the yokes 24b-1, 24b-2 and the magnets 26b-1, 26b-2. A gap (35 in FIG. 29) is formed.
  • FIG. 31A shows magnetic flux lines generated by the soft magnetic bodies 21a-1, 21a-2 of the optical connectors 2a-1, 2a-2 and the magnets 21b-1, 21b-2 of the optical connector 2b. Since the lengths of the magnets 21b-1 and 21b-2 in the Z-axis direction are short and the magnets 21b-1 and 21b-2 are surrounded by air, the magnetic flux lines 50 are widely distributed in the space.
  • FIG. 31B shows magnetic flux lines generated when the magnets 22b-1, 22b-2 and the magnets 21b-1, 21b-2 are in close contact with each other.
  • the magnets 22b-1 and 22b-2 are integrated with the yokes 24b-1 and 24b-2. Therefore, when the magnets 22b-1, 22b-2 and the magnets 21b-1, 21b-2 are in close contact with each other, the magnetic flux lines 51 do not leak out of the yokes 24b-1, 24b-2.
  • the magnets 21b-1, 21b-2, 22b-1, 22b-2, the yokes 24b-1, 24b-2, the soft magnetic bodies 21a-1, 21a-2, and the MIM molded bodies 22a-1, 22a-2 are routed.
  • a magnetic circuit is formed, and the magnetic flux lines 51 are distributed so as to pass through the magnetic circuit as shown in FIG. 31B.
  • the ends of the magnets 22b-1 and 22b-2 on the opposite side from the optical connectors 2a-1 and 2a-2 are connected to the through holes 30b-1 and 30b-2 of the yokes 24b-1 and 24b-2. It is installed so that it mates with the The ends of the magnets 22b-1 and 22b-2 are exposed on the end faces of the yokes 24b-1 and 24b-2 on the side opposite to the optical connectors 2a-1 and 2a-2 (the right side in FIG. 31B). Lines of magnetic flux 52 leaking from the ends of the magnets 22b-1 and 22b-2 are generated as shown in FIG. 31B.
  • FIG. 32 shows lines of magnetic flux generated when the magnets 26b-1 and 26b-2 approach the yokes 24b-1 and 24b-2.
  • the magnetization directions of the magnets 26b-1, 26b-2 and the magnetization directions of the magnets 21b-1, 21b-2, 22b-1, 22b-2 differ by 180 degrees. Therefore, when the magnets 26b-1, 26b-2 are brought close to the yokes 24b-1, 24b-2, the magnets 26b-1, 26b-2 and the magnets 21b-1, 21b-2, 22b-1, 22b-2 A repulsive force acts between them, and the magnetic flux lines 53 generated by the magnets 26b-1 and 26b-2 do not intersect with the magnets 21b-1, 21b-2, 22b-1 and 22b-2.
  • the magnetic flux lines 52 generated by the already integrated magnets 21b-1, 21b-2, 22b-1, and 22b-2 cannot intersect with the magnetic flux lines 53 of the magnets 26b-1 and 26b-2. . Therefore, a part of the magnetic flux lines 52 that have been distributed in the space are newly routed through the yokes 24b-1 and 24b-2, and the magnets 21b-1, 21b-2, 22b-1, 22b- A magnetic flux line 54 is generated as shown in FIG. 32, which passes through a magnetic circuit consisting of the yokes 2, the yokes 24b-1 and 24b-2, the soft magnetic bodies 21a-1 and 21a-2, and the MIM molded bodies 22a-1 and 22a-2.
  • the soft magnetic bodies 21a-1, 21a of the optical connectors 2a-1, 2a-2 -2 and the magnets 21b-1, 21b-2, 22b-1, 22b-2 of the optical connector 2b increases, causing the optical fibers 1a-1, 1a-2 and the optical fibers 1b-1, A sufficient load can be obtained to press the end faces of 1b-2 together.
  • FIGS. 33 to 46 are plan views illustrating the disconnection procedure.
  • release tools 4-1 and 4-2 shown in FIGS. 33 and 34 are prepared.
  • the release tools 4-1 and 4-2 are made of soft magnetic material.
  • magnets magnetized so as to be able to draw in the magnets 22b-1, 22b-2, 26b-1, and 26b-2 at the same time may be used.
  • the height of the release tools 4-1 and 4-2 in the Y-axis direction is determined by the yoke 24b- 1, 24b-2 and the height of the magnets 26b-1, 26b-2.
  • the width of the release tools 4-1, 4-2 in the X-axis direction must be less than or equal to the width of the yokes 24b-1, 24b-2. Cutouts 40 are formed at the tips of the release tools 4-1 and 4-2 to prevent collisions with the optical fibers 1b-1 and 1b-2.
  • the operator inserts the release tool 4-1 between the yoke 24b-1 and the magnet 26b-1, and inserts the release tool 4-2 between the yoke 24b-2 and the magnet 26b-2.
  • the state shown is that it has been inserted into the .
  • the thickness of the release tools 4-1, 4-2 in the Z-axis direction is determined by the Z-axis thickness of the gap between the yokes 24b-1, 24b-2 and the magnets 26b-1, 26b-2. It is desirable that the length be less than or equal to the length in the direction.
  • the release tools 4-1 and 4-2 collide with the optical fibers 1b-1 and 1b-2 with force. There's nothing to do.
  • the magnetic flux lines change, and the magnets 21b-1, 21b- 2, 22b-1, 22b-2, yokes 24b-1, 24b-2, soft magnetic bodies 21a-1, 21a-2, and MIM molded bodies 22a-1, 22a-2 as paths disappear. . Therefore, the magnetic force acting between the soft magnetic bodies 21a-1, 21a-2 of the optical connectors 2a-1, 2a-2 and the magnets 21b-1, 21b-2, 22b-1, 22b-2 of the optical connector 2b. Attraction decreases.
  • magnets 21b-1, 21b-2 and the magnets 22b-1, 22b-2 are in close contact with each other due to magnetic attraction, the magnets 21b-1, 21b cannot be removed by simply inserting the release tools 4-1, 4-2. -2 and magnets 22b-1 and 22b-2 cannot be separated.
  • the optical connector 2b is rotated around the Z-axis and pulled to the side opposite to the optical connectors 2a-1 and 2a-2 (to the right in FIG. 37).
  • the positions of the magnets 22b-1, 22b-2 and the yokes 24b-1, 24b-2 in the XY plane are not fixed by the guide pins 3-1, 3-2. Therefore, by holding both sides of the fastener 25 by the operator, it is possible to easily rotate the magnets 22b-1, 22b-2 and the yokes 24b-1, 24b-2 around the Z-axis. It is.
  • FIGS. 38 to 40 The state in which the optical connector 2b is pulled out is shown in FIGS. 38 to 40. Due to the frictional force acting between the guide pins 3-1, 3-2 and the guide pin holes 23b-1, 23b-2 of the ferrules 20b-1, 20b-2, the ferrules 20b-1, 20b-2 and the magnet 21b- 1 and 21b-2 remain on the optical connectors 2a-1 and 2a-2 side, and are separated from the magnets 22b-1 and 22b-2.
  • FIGS. 41 to 43 The states in which the release tools 4-1 and 4-2 are pulled out are shown in FIGS. 41 to 43. Since a repulsive force acts between the magnets 22b-1, 22b-2 and the magnets 26b-1, 26b-2, the magnets 22b-1, 22b-2 (yoke 24b-1, 24b-2) and the magnets 26b-1 and 26b-2 are separated from each other. In the states shown in FIGS. 41 to 43, magnetic force acts between the soft magnetic bodies 21a-1, 21a-2 of the optical connectors 2a-1, 2a-2 and the magnets 21b-1, 21b-2 of the optical connector 2b. is in a weak state.
  • the operator separates the magnets 21b-1 and 21b-2 of the optical connector 2b from the optical connectors 2a-1 and 2a-2, and separates the ferrules 20a-1 and 20a-2 from the ferrules 20b-1 and 20b-2. Separate. The state at this time is shown in FIGS. 44 to 46.
  • FIGS. 51A and 51B are side views of the connector connection structure after connection. 48, FIG. 50, and FIG. 51B do not illustrate the fastener 25.
  • the optical connector 2b in order to obtain the load necessary to press the end faces of the optical fibers 1a-1, 1a-2 and the optical fibers 1b-1, 1b-2, the optical connector 2b is equipped with a magnet 22b-1, 22b-2 was installed.
  • the end surfaces of the optical fibers 1a-1, 1a-2 and the optical fibers 1b-1, 1b-2 are pressed together by the magnets 21b-1, 21b-2, 26b-1, 26b-2.
  • An example in which sufficient load can be obtained is shown. Therefore, in this embodiment, the magnets 22b-1 and 22b-2 are omitted.
  • the operator when connecting the optical connectors 2a-1, 2a-2 and the optical connector 2b, the operator connects the optical connector 2b to the optical connector 2a-1, 2a as in the first embodiment. -2, insert the guide pins 3-1, 3-2 into the guide pin holes 23b-1, 23b-2 of the ferrules 20b-1, 20b-2 of the optical connector 2b, and then The end surfaces of the ferrule 20a-2 and the ferrules 20b-1 and 20b-2 are brought into contact with each other.
  • the operator moves the yokes 24b-1 and 24b-2 along the Z-axis direction to approach the magnets 21b-1 and 21b-2.
  • the MIM molded bodies of the optical connectors 2a-1 and 2a-2 are The yokes 22a-1, 22a-2 and the yokes 24b-1, 24b-2 are in contact with each other.
  • the operator moves the fastener 25 and the magnets 26b-1, 26b-2 along the Z-axis direction to approach the yokes 24b-1, 24b-2, so that the hook portion 27 of the fastener 25 becomes soft. It is made to hang on the ends of the magnetic bodies 21a-1 and 21a-2. In this way, the positions of the yokes 24b-1, 24b-2 and the magnets 26b-1, 26b-2 are fixed.
  • the magnets 22b-1 and 22b-2 are omitted, the magnets 21b-1 and 21b-2, the yokes 24b-1 and 24b-2, and the soft magnetic bodies 21a-1 and 21a-2 are formed by MIM molding.
  • a magnetic circuit is formed using the bodies 22a-1 and 22a-2 as a path.
  • the operator when disconnecting the optical connectors 2a-1, 2a-2 and the optical connector 2b, the operator moves the release tool 4-1 to the yoke 24b-1 as in the first embodiment. and the magnet 26b-1, and the release tool 4-2 is inserted between the yoke 24b-2 and the magnet 26b-2.
  • the operator pinches both sides of the fasteners 25 at the lateral positions of the yokes 24b-1 and 24b-2 with his or her fingertips, and rotates the optical connector 2b around the Z-axis while rotating the optical connector 2a-1, Pull it to the side opposite to 2a-2 to release the fixation by the hook portion 27 that was hooked on the ends of the soft magnetic bodies 21a-1 and 21a-2. Then, the operator only has to separate the magnets 21b-1 and 21b-2 of the optical connector 2b from the optical connectors 2a-1 and 2a-2.
  • FIGS. 54A and 54B are side views of the connector connection structure after connection.
  • 52, FIG. 53, FIG. 54A, and FIG. 54B do not illustrate the fastener 25.
  • FIG. 53 shows the top and side surfaces of the optical connector as seen through.
  • FIG. 54B shows a side view of the optical connector.
  • the magnets 21b-1, 21b-2, 22b-1, 22b-2 are used to press the end faces of the optical fibers 1a-1, 1a-2 and the optical fibers 1b-1, 1b-2 together. Since the load can be obtained, the magnets 26b-1 and 26b-2 are omitted.
  • the end surfaces of the yokes 24b-1 and 24b-2 on the side opposite to the optical connectors 2a-1 and 2a-2 are fixed to the fasteners 25.
  • the through holes 31b-1, 31b-2 of the magnets 22b-1, 22b-2 communicate with the through holes 33b-1, 33b-2 of the fastener 25.
  • the length of the fastener 25 in the Z-axis direction from the end of the yokes 24b-1, 24b-2 opposite to the optical connectors 2a-1, 2a-2 to the hook portion 27 is determined by the soft magnetic material. It is set to the sum of the lengths of 21a-1 and 21a-2, the lengths of MIM molded bodies 22a-1 and 22a-2, and the lengths of yokes 24b-1 and 24b-2.
  • the operator when connecting the optical connectors 2a-1, 2a-2 and the optical connector 2b, the operator connects the optical connector 2b to the optical connector 2a-1, 2a as in the first embodiment. -2, insert the guide pins 3-1, 3-2 into the guide pin holes 23b-1, 23b-2 of the ferrules 20b-1, 20b-2 of the optical connector 2b, and then The end surfaces of the ferrule 20a-2 and the ferrules 20b-1 and 20b-2 are brought into contact with each other.
  • the operator moves the fastener 25 and the yokes 24b-1, 24b-2 along the Z-axis direction to bring them close to the magnets 21b-1, 21b-2, so that the hook portion 27 of the fastener 25 is made of soft magnetic material. It should hang over the ends of 21a-1 and 21a-2.
  • the operator when disconnecting the optical connectors 2a-1, 2a-2 and the optical connector 2b, the operator does not need to use the disconnection tools 4-1, 4-2.
  • the operator pinches both sides of the fasteners 25 next to the yokes 24b-1 and 24b-2 with his or her fingertips, and rotates the optical connectors 2b around the Z-axis while attaching the optical connectors 2a-1 and 2a-2. Pull it to the opposite side to release the fixation by the hook part 27 that was hooked on the ends of the soft magnetic bodies 21a-1 and 21a-2. Then, the operator only has to separate the magnets 21b-1 and 21b-2 of the optical connector 2b from the optical connectors 2a-1 and 2a-2.
  • fastener 25 is not an essential component in this embodiment. Since magnetic attraction acts between the magnets 21b-1, 21b-2 and the magnets 22b-1, 22b-2, it is also possible to fix the optical connector 2b without a fastener.
  • the soft magnetic body 21a and the MIM molded body are 22a, magnets 21b, 22b, 26b, and yoke 24b are provided, but one receptacle and one plug are provided, and one soft magnetic body 21a, MIM molded body 22a, magnets 21b, 22b, 26b, and yoke 24b are provided. They may be provided one by one.
  • the ferrules 20a-1, 20a-2 are attached to the MIM molded bodies 22a-1, 22a-2, but the MIM molded bodies 22a-1, 22a-2 are not required. Instead of being a component, the MIM molded bodies 22a-1 and 22a-2 may be omitted.
  • a recess is formed in the end surface of the soft magnetic material 21a-1, 21a-2 on the optical connector 2b side, and the ferrules 20a-1, 20a-2 are provided in the recess, and the soft magnetic material 21a-1, 21a
  • the ferrules 20a-1 and 20a-2 may be positioned so that the connection end faces of the ferrules 20a-1 and 20a-2 slightly protrude from the end faces of the optical connectors 2b-2 on the side of the optical connector 2b.
  • the exterior parts of the optical connector are not explicitly described, it goes without saying that exterior parts may be provided as appropriate.
  • the case where optical fibers are connected to each other is explained as an example, but the present invention can also be applied to a connector for connecting electric cables.
  • the optical connectors of the first to third embodiments may be replaced with connectors, and the optical fibers may be replaced with cables.
  • the present invention can be applied to technology for connecting connectors.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Couplings Of Light Guides (AREA)
PCT/JP2022/019057 2022-04-27 2022-04-27 コネクタ接続構造 WO2023209862A1 (ja)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000275464A (ja) * 1999-03-26 2000-10-06 Sony Corp 光コネクタ装置
JP2002131661A (ja) * 2000-10-27 2002-05-09 Hitachi Ltd 光スイッチ及びその製造方法
JP2007272047A (ja) * 2006-03-31 2007-10-18 Japan Aviation Electronics Industry Ltd 光部品
JP2014154367A (ja) * 2013-02-08 2014-08-25 Auto Network Gijutsu Kenkyusho:Kk コネクタ
WO2021111773A1 (ja) * 2019-12-05 2021-06-10 日本電信電話株式会社 光接続部品および光接続構造
US20210231882A1 (en) * 2018-06-29 2021-07-29 3M Innovative Properties Company Connector with pivoting magnetic door
WO2022074866A1 (ja) * 2020-10-07 2022-04-14 株式会社フジクラ 光コネクタ用フェルールおよび光コネクタ

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000275464A (ja) * 1999-03-26 2000-10-06 Sony Corp 光コネクタ装置
JP2002131661A (ja) * 2000-10-27 2002-05-09 Hitachi Ltd 光スイッチ及びその製造方法
JP2007272047A (ja) * 2006-03-31 2007-10-18 Japan Aviation Electronics Industry Ltd 光部品
JP2014154367A (ja) * 2013-02-08 2014-08-25 Auto Network Gijutsu Kenkyusho:Kk コネクタ
US20210231882A1 (en) * 2018-06-29 2021-07-29 3M Innovative Properties Company Connector with pivoting magnetic door
WO2021111773A1 (ja) * 2019-12-05 2021-06-10 日本電信電話株式会社 光接続部品および光接続構造
WO2022074866A1 (ja) * 2020-10-07 2022-04-14 株式会社フジクラ 光コネクタ用フェルールおよび光コネクタ

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