WO2018105370A1 - Connecteur - Google Patents

Connecteur Download PDF

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Publication number
WO2018105370A1
WO2018105370A1 PCT/JP2017/041730 JP2017041730W WO2018105370A1 WO 2018105370 A1 WO2018105370 A1 WO 2018105370A1 JP 2017041730 W JP2017041730 W JP 2017041730W WO 2018105370 A1 WO2018105370 A1 WO 2018105370A1
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WO
WIPO (PCT)
Prior art keywords
receptacle
plug
surface portion
circuit board
connector
Prior art date
Application number
PCT/JP2017/041730
Other languages
English (en)
Japanese (ja)
Inventor
渡邉　亮
Original Assignee
株式会社村田製作所
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 株式会社村田製作所 filed Critical 株式会社村田製作所
Publication of WO2018105370A1 publication Critical patent/WO2018105370A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00—Semiconductor lasers
    • H01S5/02—Structural details or components not essential to laser action
    • H01S5/022—Mountings; Housings
    • H01S5/0239—Combinations of electrical or optical elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/71—Coupling devices for rigid printing circuits or like structures

Definitions

  • the present invention relates to a connector used for optical coupling between an optical element and an optical fiber.
  • a receptacle described in Patent Document 1 is known as an invention related to a conventional connector.
  • the receptacle includes a mounting substrate and a casing.
  • the mounting substrate includes wirings, electrodes, and the like, and has two main surfaces parallel to each other.
  • the casing is manufactured by bending a single metal plate, and is bonded and fixed onto the main surface of the mounting substrate.
  • the housing part serves to hold a plug connected to the receptacle.
  • an object of the present invention is to provide a connector that can suppress positional deviation between the substrate and the holding member.
  • a connector is A connector to which a counterpart connector including a counterpart main body and a counterpart holding member provided at the tip of an optical fiber is connected,
  • the connector is A substrate, An optical element mounted on the substrate;
  • a holding member that has a structure in which the metal plate is bent and is fixed to the substrate; With When the connector and the counterpart connector are connected, the main body and the counterpart main body are pressed against each other by pressing the holding member and the counterpart holding member,
  • the substrate is provided with a slit,
  • the holding member includes a positioning part located in the slit.
  • FIG. 1 is an external perspective view of the light transmission module 10.
  • FIG. 2 is a cross-sectional structure diagram along AA in FIG.
  • FIG. 3A is an external perspective view of the receptacle 20.
  • FIG. 3B is an external perspective view of the receptacle 20.
  • FIG. 4A is an exploded perspective view of the receptacle 20.
  • FIG. 4B is an exploded perspective view of the receptacle 20.
  • FIG. 4C is a cross-sectional structure view taken along the line BB of the optical transmission module 10.
  • FIG. 5 is an external perspective view of the plug 50.
  • FIG. 6 is an exploded perspective view of the plug 50.
  • FIG. 7 is an external perspective view when the plug 50 is attached to the receptacle 20.
  • FIG. 8 is an external perspective view when the plug 50 is attached to the receptacle 20.
  • FIG. 9 is a cross-sectional structure diagram of an optical transmission module 10a including a receptacle 20a according to a first modification.
  • FIG. 10 is an external perspective view of the plug 50a.
  • FIG. 11A is a sectional view of the optical transmission module 10b.
  • FIG. 11B is a cross-sectional structure diagram of the receptacle 20b.
  • FIG. 1 is an external perspective view of the light transmission module 10.
  • FIG. 2 is a cross-sectional structure diagram along AA in FIG. In FIG. 2, the receptacle cover 26, the plug cover 54, and the slider 56 are omitted.
  • the direction in which the receptacle 20 and the plug 50 are arranged is referred to as a vertical direction (an example of a connection direction).
  • the direction from the receptacle 20 toward the plug 50 is defined as the upper side (an example of one side of the connection direction), and the direction from the plug 50 to the receptacle 20 is defined as the lower side (an example of the other side of the connection direction).
  • a direction in which a slider 56 described later moves is referred to as a front-rear direction.
  • the direction orthogonal to the up-down direction and the left-right direction be a left-right direction.
  • the definition of a direction is an example and is not restricted to the definition of the said direction.
  • the optical transmission module 10 includes a receptacle 20 (an example of a connector), a plug 50 (an example of a counterpart connector), and an optical fiber 100, as shown in FIGS.
  • the plug 50 is in contact with the receptacle 20 from above.
  • a plug 50 provided at the tip of the optical fiber 100 is connected to the receptacle 20.
  • FIG. 3A and 3B are external perspective views of the receptacle 20.
  • 4A and 4B are exploded perspective views of the receptacle 20.
  • FIG. 4C is a cross-sectional structure view taken along the line BB of the optical transmission module 10.
  • the receptacle 20 includes a receptacle body 22 (an example of a body), a circuit board 24 (an example of a board), and a receptacle cover 26 (an example of a holding member).
  • a receptacle body 22 an example of a body
  • a circuit board 24 an example of a board
  • a receptacle cover 26 an example of a holding member.
  • the circuit board 24 is a rectangular plate having main surfaces S1 and S2.
  • the main surface S1 faces upward, and the main surface S2 faces downward.
  • the circuit board 24 includes a glass substrate 24a and a resin mold 24b.
  • the plurality of light emitting elements 30 and the plurality of light receiving elements 32 are mounted on the lower main surface of the glass substrate 24a as shown in FIG.
  • the plurality of light emitting elements 30 and the plurality of light receiving elements 32 are arranged in a line in the left-right direction near the center of the glass substrate 24a when viewed from above.
  • FIG. 2 shows a cross section orthogonal to the horizontal direction at each position where the light emitting element 30 or the light receiving element 32 is provided.
  • the light emitting surfaces of the plurality of light emitting elements 30 or the light receiving surfaces of the plurality of light receiving elements 32 face upward.
  • the light emitting element 30 is, for example, a VCSEL.
  • the light receiving element 32 is, for example, a photodiode (PD).
  • the IC (not shown) is a driver IC of the light emitting element 30 and a receiver IC of the light receiving element 32, and is mounted on the lower main surface of the glass substrate 24a.
  • the circuit board 24 further includes wiring (not shown) and a plurality of external terminals 36.
  • the plurality of external terminals 36 are provided so as to be arranged along the outer edge of the lower main surface of the glass substrate 24a.
  • the wiring is formed on the lower main surface of the glass substrate 24a, and electrically connects the plurality of light emitting elements 30, the plurality of light receiving elements 32, the driver IC, and the plurality of external terminals.
  • the resin mold 24b covers the entire surface of the lower main surface of the glass substrate 24a. Accordingly, the plurality of light emitting elements 30, the plurality of light receiving elements 32, and the IC are buried in the resin mold 24b. However, the plurality of external terminals 36 are exposed from the resin mold 24b.
  • the circuit board 24 has a structure in which the thickness of the area near the front side, the right side and the left side is thinner than the thickness of the remaining area. More specifically, the thickness of the resin mold 24b in the region near the front side, the right side, and the left side is smaller than the thickness of the resin mold 24b in the remaining region. That is, the region where the resin mold 24b is thin has a square U shape. Note that the difference between the thickness of the resin mold 24b in the region near the front side, the right side and the left side and the thickness of the resin mold 24b in the remaining region is the thickness of the metal plate constituting the receptacle cover 26 described later. It is almost coincident.
  • the circuit board 24 is provided with slits SL1 and SL2.
  • the slit SL1 is provided in the vicinity of the center of the left side of the circuit board 24 when viewed from above, and extends in the front-rear direction.
  • the slit SL2 is provided in the vicinity of the center of the right side of the circuit board 24 when viewed from above, and extends in the front-rear direction.
  • the slits SL ⁇ b> 1 and SL ⁇ b> 2 penetrate the circuit board 24 in the vertical direction and do not contact the outer edge of the circuit board 24.
  • a slit means the elongate clearance gap provided in members, such as a board
  • the receptacle body 22 (an example of the body) is a rectangular parallelepiped transparent resin member, and has an upper surface S21, a lower surface, a right surface, a left surface, a front surface, and a rear surface. As shown in FIG. 2, the receptacle body 22 includes a part of an optical path connecting the optical fiber 100 and the light emitting element 30 or the light receiving element 32.
  • the material of the receptacle body 22 is, for example, glass having translucency. However, the material of the receptacle body 22 may be a resin such as an epoxy resin.
  • the receptacle body 22 is mounted at the center of the main surface S1 of the circuit board 24, and has a positioning portion 28 and a plurality of lenses 34.
  • the upper surface S21 is a surface facing upward. Further, as shown in FIG. 2, a recess G is provided on the lower surface of the receptacle body 22.
  • the recess G extends in the left-right direction when viewed from above, and overlaps the plurality of light emitting elements 30 and the plurality of light receiving elements 32. That is, the receptacle body 22 covers the plurality of light emitting elements 30 and the plurality of light receiving elements 32 from above.
  • the plurality of lenses 34 are provided so as to be aligned in the left-right direction so as to correspond to the plurality of light emitting elements 30 and the plurality of light receiving elements 32, and are convex lenses that protrude downward from the bottom surface of the recess G. It is.
  • the lens 34 collimates the light B output from the light emitting element 30 into parallel light.
  • the lens 34 collects parallel light on the light receiving element 32.
  • the positioning portion 28 includes positioning grooves 28a to 28d provided on the upper surface S21.
  • the positioning groove 28a is a groove extending in the left-right direction in the vicinity of the center of the right side of the upper surface S21.
  • the positioning groove 28b is a groove extending in the left-right direction in the vicinity of the center of the left side of the upper surface S21.
  • the positioning groove 28c is a groove extending in the front-rear direction in the vicinity of the center of the front side of the upper surface S21.
  • the positioning groove 28d is a groove extending in the front-rear direction near the center of the rear side of the upper surface S21.
  • the receptacle cover 26 (an example of a holding member) has a structure in which a single metal plate (for example, SUS) is bent.
  • the receptacle cover 26 is fixed to the circuit board 24 so that the relative position with respect to the receptacle body 22 is fixed.
  • the receptacle cover 26 includes a left surface portion 26a, upper surface portions 26b, 26e, and 26h, lower surface portions 26c, 26f, and 26i, a right surface portion 26d, a front surface portion 26g, and positioning portions 26j and 26k.
  • the left surface portion 26 a is located on the left side of the receptacle body 22 and extends upward from the circuit board 24. Further, the left surface portion 26 a extends in the front-rear direction along the entire left side of the circuit board 24.
  • the lower surface portion 26c is located on the left side of the receptacle body 22, and extends from the left surface portion 26a toward the right side. That is, the lower surface portion 26 c is bent from the lower end of the left surface portion 26 a toward the right side, and extends in the front-rear direction along the entire left side of the circuit board 24.
  • the positioning portion 26j is bent upward from the vicinity of the center in the front-rear direction of the lower surface portion 26c.
  • the lower surface portion 26c is fixed to the main surface S2 of the circuit board 24. More specifically, the lower surface portion 26c is in a region where the thickness of the circuit board 24 is thin in the vicinity of the left side of the main surface S2. It is fixed with a silicon adhesive or the like.
  • the positioning portion 26j is located in the slit SL1 and protrudes upward from the main surface S1 of the circuit board 24.
  • a portion protruding upward from the main surface S1 of the circuit board 24 is referred to as a protruding portion 27a.
  • the upper surface part 26b is located on the left side of the receptacle body 22 and on the upper side with respect to the circuit board 24, and extends from the left surface part 26a toward the right side. More specifically, the upper surface portion 26 b is bent from the upper end of the left surface portion 26 a toward the right side, and extends in the front-rear direction along the front half of the left side of the circuit board 24. The upper surface portion 26b can be elastically deformed so that the right end moves up and down by being supported at the left end by the left surface portion 26a.
  • the receptacle cover 26 has a pressure contact surface S11 facing downward. In the present embodiment, the pressure contact surface S11 is a surface facing the lower side of the upper surface portion 26b.
  • the right surface portion 26d is located on the right side of the receptacle body 22, and extends upward from the circuit board 24. Further, the right surface portion 26 d extends in the front-rear direction along the entire right side of the circuit board 24.
  • the lower surface portion 26f is located on the right side of the receptacle body 22 and extends from the right surface portion 26d toward the left side. That is, the lower surface portion 26 f is bent from the lower end of the right surface portion 26 d toward the left side, and extends in the front-rear direction along the entire right side of the circuit board 24.
  • the positioning portion 26k is bent upward from the vicinity of the center in the front-rear direction of the lower surface portion 26f.
  • the lower surface portion 26f is fixed to the main surface S2 of the circuit board 24. More specifically, the lower surface portion 26f is in a region where the thickness of the circuit board 24 is thin in the vicinity of the right side of the main surface S2. It is fixed with a silicon adhesive or the like.
  • the positioning portion 26k is located in the slit SL2 and protrudes upward from the main surface S1 of the circuit board 24.
  • a portion protruding upward from the main surface S1 of the circuit board 24 is referred to as a protruding portion 27b.
  • the upper surface portion 26e is located on the right side of the receptacle body 22 and on the upper side with respect to the circuit board 24, and extends from the right surface portion 26d toward the left side. More specifically, the upper surface portion 26e is bent from the upper end of the right surface portion 26d toward the left side, and extends in the front-rear direction along the front half of the right side of the circuit board 24. The upper surface portion 26e can be elastically deformed so that the left end moves up and down by being supported at the right end by the right surface portion 26d.
  • the receptacle cover 26 has a pressure contact surface S12 facing downward.
  • the pressure contact surface S12 is a surface facing the lower side of the upper surface portion 26e.
  • the front surface part 26g is located in front of the receptacle body 22 and extends upward from the circuit board 24. Further, the front surface portion 26 g extends in the left-right direction along the central portion of the front side of the circuit board 24.
  • the lower surface portion 26i is located on the front side of the receptacle main body 22, and extends from the front surface portion 26g toward the rear side. That is, the lower surface portion 26 i is bent from the lower end of the front surface portion 26 g toward the front side, and extends in the left-right direction along the center portion of the front side of the circuit board 24.
  • the lower surface portion 26i is fixed to the main surface S2 of the circuit board 24. More specifically, the lower surface portion 26i is bonded to a region where the thickness of the circuit board 24 is thin in the vicinity of the front side of the main surface S2. It is fixed with agents.
  • the upper surface portion 26h is located on the front side of the receptacle body 22 and on the upper side with respect to the circuit board 24, and extends from the front surface portion 26g toward the rear side. More specifically, the upper surface portion 26 h is bent from the upper end of the front surface portion 26 g toward the rear side, and extends in the left-right direction along the central portion of the front side of the circuit board 24. The left and right ends of the upper surface portion 26h are connected to the upper surface portions 26b and 26e, respectively.
  • the receptacle cover 26 configured as described above is fixed to the circuit board 24 by adhesive members 33a and 33b, so that the relative position with respect to the receptacle body 22 is fixed. More specifically, the adhesive member 33a is fixed to the portion of the receptacle cover 26 that is located above the circuit board 24 (that is, the left surface portion 26a) and the protruding portion 27a. The adhesive member 33b is fixed to the portion of the receptacle cover 26 that is located above the circuit board 24 (that is, the right surface portion 26d) and the protruding portion 27b. Furthermore, the lower surface portions 26c, 26f, and 26i are fixed to an area where the thickness of the circuit board 24 is thin. Thus, the lower surface of the circuit board 24 and the lower surface portions 26c, 26f, and 26i substantially constitute one plane.
  • the upper surface portions 26b, 26e, and 26h extend along the left side, the right side, and the front side of the circuit board 24 when viewed from above. Therefore, the receptacle cover 26 does not overlap the receptacle body 22 when viewed from above. In addition, since the receptacle cover 26 does not exist in the vicinity of the rear side of the circuit board 24, the receptacle cover 26 does not overlap the receptacle body 22 when viewed from the rear side.
  • FIG. 5 is an external perspective view of the plug 50.
  • FIG. 6 is an exploded perspective view of the plug 50.
  • the plug 50 includes a plug body 52 (an example of a counterpart body), a plug cover 54, and a slider 56 (an example of a counterpart holding member).
  • An optical fiber 100 is connected to the plug 50.
  • the optical fiber 100 extends from the rear end of the plug 50 along the front-rear direction.
  • the plug main body 52 is a rectangular parallelepiped transparent resin member, and has an upper surface, a lower surface, a right surface, a left surface, a front surface, and a rear surface.
  • the material of the plug body 52 is, for example, an epoxy resin having translucency.
  • the plug body 52 is provided at the tip (front end) of the optical fiber 100. Further, as shown in FIGS. 2, 5, and 6, the plug body 52 has a positioning portion 58 (shown in FIGS. 5 and 6) and a total reflection surface M (shown in FIG. 2).
  • the lower surface is a surface facing downward, and the front half of the lower surface is particularly referred to as a facing surface S22.
  • a total reflection surface M is provided on the upper surface of the plug body 52 as shown in FIG.
  • the total reflection surface M is a plane having a normal vector facing the front oblique upper side, and is formed by a part of the upper surface of the plug body 52 being recessed.
  • the total reflection surface M overlaps the plurality of light emitting elements 30, the plurality of light receiving elements, and the plurality of lenses 34 when viewed from above. Further, the total reflection surface M overlaps the tip of the optical fiber 100 when viewed from the front side.
  • the total reflection surface M reflects the light B emitted from the plurality of light emitting elements 30 and passing through the plurality of lenses 34 toward the optical fiber 100.
  • the total reflection surface M reflects the light B emitted from the optical fiber 100 toward the plurality of lenses 34 and the plurality of light receiving elements 32.
  • the total reflection surface M may have a function as a lens by forming a curved surface. That is, the light B that has passed through the lens 34 from the light emitting element 30 may be collected by the total reflection surface M and incident on the optical fiber 100. Further, the light emitted from the optical fiber 100 may be collimated by the total reflection surface M.
  • the positioning portion 58 includes positioning protrusions 58a to 58d provided on the facing surface S22.
  • the positioning protrusion 58a is a protrusion extending in the left-right direction in the vicinity of the center of the right side of the facing surface S22.
  • the positioning protrusion 58b is a protrusion extending in the left-right direction in the vicinity of the center of the left side of the facing surface S22.
  • the positioning protrusion 58c is a protrusion extending in the front-rear direction near the center of the front side of the facing surface S22.
  • the positioning protrusion 58d is a protrusion extending in the front-rear direction in the vicinity of the center of the rear side of the facing surface S22.
  • the positioning protrusions 58a to 58d are arranged at the corners of a virtual square having diagonal lines extending in the front-rear direction and the left-right direction when viewed from below.
  • the positioning grooves 28a to 28d have shapes that follow the positioning protrusions 58a to 58d when viewed from above.
  • the positioning portion 28 (positioning grooves 28a to 28d) is changed to the positioning portion 58 (positioning protrusions 58a to 58d). Then, when the positioning portion 28 is fitted into the positioning portion 58, the receptacle 20 and the plug 50 are positioned in the front-rear direction and the left-right direction.
  • the plug cover 54 is manufactured by bending a single metal plate (for example, SUS), and covers the upper surface, the right surface, and the left surface of the plug body 52.
  • the plug cover 54 includes an upper surface portion 54a, a left surface portion 54b, a right surface portion 54c, and retaining portions 54d, 54e, 54f, and 54g.
  • the upper surface portion 54a covers substantially the entire upper surface of the plug body 52 and has a rectangular shape.
  • the left surface portion 54b covers substantially the entire left surface of the plug body 52 and has a rectangular shape.
  • the left surface portion 54b is bent downward from the left side of the upper surface portion 54a.
  • the right surface portion 54c covers substantially the entire right surface of the plug body 52 and has a rectangular shape.
  • the right surface portion 54c is bent downward from the right side of the upper surface portion 54a.
  • the retaining portion 54d is a protrusion that is provided near the front end of the left surface portion 54b and protrudes to the left.
  • the retaining portion 54e is a protrusion that is provided near the front end of the right surface portion 54c and protrudes to the right.
  • the retaining portion 54f protrudes from the rear side of the left surface portion 54b toward the left rear side.
  • the retaining portion 54g protrudes from the rear side of the right surface portion 54c toward the right rear side.
  • the plug cover 54 as described above is fixed to the plug body 52 with a silicon-based adhesive or the like.
  • the slider 56 is manufactured by bending a single metal plate (for example, SUS), and moves with respect to the plug body 52 between a first position and a second position arranged in the front-rear direction. It is configured to be possible.
  • the second position is located on the front side with respect to the first position. In other words, the first position is located on the rear side with respect to the second position.
  • the slider 56 includes an upper surface portion 56a, a left surface portion 56b, overhang portions 56c and 56g, guide portions 56d and 56h, lower surface portions 56e and 56i, and a right surface portion 56f.
  • the upper surface portion 56a is provided on the upper surface portion 54a and has a rectangular shape.
  • the width of the upper surface portion 56a in the left-right direction is substantially equal to the width of the upper surface portion 54a in the left-right direction, and the length of the upper surface portion 56a in the front-rear direction is shorter than the length of the upper surface portion 54a in the front-rear direction.
  • the left surface portion 56b covers a part of the left surface of the left surface portion 54b. Specifically, the back half of the left surface portion 56 b reaches the left surface portion 54 b and the lower end of the plug body 52. On the other hand, the front half of the left surface portion 56b reaches the center in the vertical direction of the left surface portion 54b and does not reach the lower end of the plug body 52.
  • the lower surface portion 56e is bent rightward from the lower end of the rear half of the left surface portion 56b. As a result, the lower surface portion 56 e goes around the lower surface of the plug body 52.
  • the overhanging portion 56c extends from the plug main body 52 toward the left side, and specifically extends from the lower end of the front half of the left surface portion 56b toward the left side.
  • the projecting portion 56c is bent toward the left side from the lower end of the front half of the left surface portion 56b.
  • the overhanging portion 56c can be elastically deformed so that the left end moves up and down by being supported at the right end by the left surface portion 56b.
  • the slider 56 has a pressure contact surface S13 (see FIG. 1) facing upward.
  • the pressure contact surface S13 is a surface facing the upper side in the overhanging portion 56c.
  • the guide portion 56d is provided at the front end portion of the overhang portion 56c, and is inclined so as to go downward as it goes to the front side.
  • the right surface portion 56f covers a part of the right surface of the right surface portion 54c. Specifically, the rear half of the right surface portion 56 f reaches the right surface portion 54 c and the lower end of the plug body 52. On the other hand, the front half of the right surface portion 56f reaches the center in the vertical direction of the right surface portion 54c and does not reach the lower end of the plug body 52.
  • the lower surface portion 56i is bent leftward from the lower end of the rear half of the right surface portion 56f. Thereby, the lower surface portion 56 i wraps around the lower surface of the plug body 52. As described above, the slider 56 is configured not to fall off the plug body 52 and the plug cover 54 by surrounding the periphery of the plug body 52 and the plug cover 54.
  • the protruding portion 56g extends from the plug body 52 toward the right side, and specifically extends from the lower end of the front half of the right surface portion 56f toward the right side. More specifically, the protruding portion 56g is bent toward the right side from the lower end of the front half of the right surface portion 56f. The protruding portion 56g can be elastically deformed so that the right end moves up and down by being supported at the left end by the right surface portion 56f.
  • the slider 56 has a pressure contact surface S14 (see FIG. 1) facing upward.
  • the pressure contact surface S14 is a surface facing the upper side in the projecting portion 56g.
  • the guide portion 56h is provided at the front end portion of the projecting portion 56g, and is inclined so as to go downward as it goes to the front side.
  • FIG. 7 and 8 are external perspective views when the plug 50 is attached to the receptacle 20.
  • the assembler places the plug 50 on the receptacle 20 as shown in FIG.
  • the slider 56 is located at the first position with respect to the plug body 52.
  • the first position is a position behind the positioning unit 58 in the optical transmission module 10 according to the present embodiment.
  • the rear end of the left surface portion 56b and the rear end of the right surface portion 56f are in contact with the retaining portions 54f and 54g, respectively.
  • the assembler lowers the plug 50 so that the upper surface S21 and the opposite surface S22 face each other.
  • the positioning part 28 fits into the positioning part 58, and the receptacle 20 and the plug 50 are positioned in the front-rear direction and the left-right direction.
  • the slider 56 is located at the first position.
  • the projecting portions 56c and 56g are not in contact with the upper surface portions 26b and 26e, respectively. Therefore, the press contact surfaces S13 and S14 are not in contact with the press contact surfaces S11 and S12, respectively.
  • the assembler moves the slider 56 from the first position to the front side to move to the second position.
  • the upper surface S21 and the facing surface S22 are positioned between the overhang portions 56c and 56g when viewed from the upper side.
  • the front end of the left surface portion 56b and the front end of the right surface portion 56f are in contact with the retaining portions 54d and 54e, respectively.
  • the press contact surfaces S13 and S14 of the overhang portions 56c and 56g are positioned slightly above the press contact surfaces S11 and S12 of the upper surface portions 26b and 26e, respectively. Therefore, when the slider 56 is moved from the first position to the second position, the projecting portions 56c and 56g are caught by the upper surface portions 26b and 26e. Therefore, the assembler moves the slider 56 in a state where the projecting portions 56c and 56g are slightly pushed down. As a result, the projecting portions 56c and 56g are positioned below the upper surface portions 26b and 26e.
  • the positional deviation between the circuit board 24 and the receptacle cover 26 can be suppressed.
  • the circuit board 24 is provided with slits SL1 and SL2.
  • the receptacle cover 26 includes positioning portions 26j and 26k. The positioning portions 26j and 26k are located in the slits SL1 and SL2, respectively. Thereby, the circuit board 24 and the receptacle cover 26 are positioned.
  • the circuit board 24 and the receptacle cover 26 can be more reliably fixed. More specifically, the circuit board 24 is made of, for example, ceramics.
  • the receptacle cover 26 is made of a metal such as SUS, for example.
  • the circuit board 24 and the receptacle cover 26 are made of different materials.
  • the adhesive property of the adhesive member to one member is relatively high, and the adhesive property of the adhesive member to the other member is relatively Lower. That is, in the adhesive member, it is difficult to obtain high adhesion to both members. Therefore, peeling easily occurs between the adhesive member and one of the members.
  • the adhesive member 33a is fixed to the left surface portion 26a and the protruding portion 27a.
  • the left surface part 26a and the protruding part 27a are part of the receptacle cover 26 and are made of metal. Therefore, if the adhesive member 33a having high adhesiveness to the metal is used, the adhesive member 33a is firmly fixed to both the left surface portion 26a and the protruding portion 27a. Therefore, peeling hardly occurs between the adhesive member 33a and the left surface portion 26a or the protruding portion 27a.
  • the left surface portion 26a is located in the width direction (left side) orthogonal to the extending direction (front-rear direction) in which the slit SL1 extends.
  • the adhesive member 33a is present on the upper side of the circuit board 24 between the left surface portion 26a and the protruding portion 27a. Therefore, when the positioning portion 26j tries to come out from the slit SL1, the adhesive member 33a is caught on the circuit board 24. As a result, the adhesive member 33a effectively suppresses the positioning portion 26j from coming out of the slit SL1. For the same reason, the adhesive member 33b effectively suppresses the positioning portion 26k from coming out of the slit SL2. As described above, according to the receptacle 20, the circuit board 24 and the receptacle cover 26 can be more reliably fixed.
  • the circuit board 24 and the receptacle cover 26 are fixed by the adhesive member 33a being fixed to the left surface portion 26a and the protruding portion 27a. Therefore, high adhesiveness to metal is required for the adhesive member 33a, and high adhesiveness to ceramics is not required for the adhesive member 33a. Thereby, the choice of the material of the adhesion member 33a spreads. For the same reason, the receptacle 20 has a wider range of materials for the adhesive member 33b.
  • the receptacle 20 and the plug 50 can be easily connected. More specifically, in the optical transmission module 10, the receptacle 20 includes the positioning unit 28, and the plug 50 includes the positioning unit 58. Then, when the positioning portion 28 is fitted into the positioning portion 58, the receptacle 20 and the plug 50 are positioned in the front-rear direction and the left-right direction. That is, the light emitting element 30 and the light receiving element 32 and the optical fiber 100 are optically coupled. In this state, when the slider 56 is moved from the first position to the second position, the pressure contact surfaces S11, S12 and the pressure contact surfaces S13, S14 are in pressure contact, and the plug main body 52 is pressed against the receptacle main body 22.
  • the receptacle 20 and the plug 50 are fixed.
  • the receptacle 20 and the plug 50 can be fixed only by moving the slider 56 without using the leaf spring 506 and the screws 508 and 510 unlike the connector set 500. Therefore, according to the optical transmission module 10, the receptacle 20 and the plug 50 can be easily connected.
  • the slider 56 and the optical fiber 100 are prevented from contacting each other. More specifically, the slider 56 moves in the front-rear direction with respect to the plug body 52.
  • the optical fiber 100 extends from the plug body 52 toward the rear side. Therefore, the moving direction of the slider 56 matches the extending direction of the optical fiber 100. Thereby, since the slider 56 does not cross the optical fiber 100, it is prevented that the slider 56 and the optical fiber 100 contact.
  • the receptacle 20 and the plug 50 can be more firmly fixed. More specifically, if the plug body 52 is pressed down only on either the right side or the left side, the plug 50 may rotate around an axis extending in the front-rear direction. Therefore, in the optical transmission module 10, the pressure contact surface S11 and the pressure contact surface S13 are in pressure contact with each other on the left side of the receptacle body 22 and the plug body 52, and the pressure contact surface S12 and the pressure contact surface S14 are pressure contacted on the right side of the receptacle body 22 and the plug body 52. To do. Thereby, the plug main body 52 comes to be pressed down on the left and right sides. As a result, the rotation of the plug 50 is suppressed, and the receptacle 20 and the plug 50 can be more firmly fixed.
  • the upper surface S21 and the facing surface S22 are located between the projecting portion 56c and the projecting portion 56g when viewed from above. .
  • the force with which the projecting portions 56c and 56g are pressed against the upper surface portions 26b and 26e is efficiently transmitted to the plug body 52. Therefore, the plug main body 52 is pressed against the receptacle main body 22, and the receptacle 20 and the plug 50 are more firmly fixed.
  • the receptacle 20 and the plug 50 are fixed by two sets of the set with the press contact surfaces S11 and S13 and the set with the press contact surfaces S12 and S14.
  • the receptacle 20 and the plug 50 may be fixed by the pressure contact surface.
  • the guide portions 56d and 56h that are directed downward toward the front side are provided. Therefore, when the slider 56 is moved to the front side, the projecting portions 56c and 56g are guided to the lower side of the upper surface portions 26b and 26e by the guide portions 56d and 56h, respectively. Therefore, the slider 56 can be moved smoothly.
  • the receptacle 20 is mounted on the circuit board 80 as shown in FIG. 4C.
  • the main surface S2 is a mounting surface facing the circuit board 80.
  • the lower surfaces of the lower surface portions 26 c and 26 f of the receptacle cover 26 are fixed to the circuit board 80 by soldering. For this reason, even if the receptacle cover 26 is pulled upward by the overhanging portions 56c and 56g of the receptacle 20, the lower surface of the lower surface portions 26c and 26f is firmly fixed to the circuit board 80 by the solder.
  • the configuration of the optical transmission module 10 is particularly effective.
  • the receptacle 20 and the plug 50 are accurately positioned. More specifically, the positioning portion 58 of the plug 50 is a convex portion arranged at a square corner, and the positioning portion 28 of the receptacle 20 is a concave portion having a shape following the positioning portion 58. Therefore, the positioning in the front-rear direction is performed mainly by fitting the positioning grooves 28a and 28b to the positioning protrusions 58a and 58b. Further, the positioning in the left-right direction is performed mainly by fitting the positioning grooves 28c, 28d to the positioning protrusions 58c, 58d. As described above, since the positioning in the front-rear direction and the left-right direction is performed equally, the receptacle 20 and the plug 50 are accurately positioned.
  • the optical transmission module 10 it is possible to suppress the occurrence of a shift in the optical path. More specifically, when the temperature rises, the receptacle body 22 and the plug body 52 expand. Since the material of the receptacle body 22 and the material of the plug body 52 are different, their linear expansion coefficients are also different. Therefore, when the temperature rises, a difference occurs between the expansion amount of the receptacle body 22 and the expansion amount of the plug body 52. Such a difference in expansion amount causes a shift in the optical path.
  • the positioning portion 58 of the plug 50 is a convex portion arranged at a corner of a virtual square having diagonal lines extending in the front-rear direction and the left-right direction, and the positioning portion 28 of the receptacle 20 is positioned. It is a concave portion having a shape that follows the portion 58. Thereby, the positioning parts 28 and 58 come to expand radially from the center of the square (intersection of diagonal lines). Therefore, the receptacle 20 and the plug 50 are unlikely to be displaced near the center of the square of the positioning portions 28 and 58.
  • the optical path that is, the light emitting element 30, the light receiving element 32, and the lens 34
  • the optical path that is, the light emitting element 30, the light receiving element 32, and the lens 34
  • FIG. 9 is a cross-sectional structure diagram of an optical transmission module 10a including a receptacle 20a according to a first modification.
  • FIG. 9 is a cross-sectional structural view taken along line BB in FIG.
  • the receptacle 20a is different from the receptacle 20 in the object to which the adhesive members 33a and 33b are fixed.
  • the adhesive member 33a is fixed to the left surface portion 26a and the protruding portion 27a
  • the adhesive member 33b is fixed to the right surface portion 26d and the protruding portion 27b.
  • the adhesive member 33a is caught by the circuit board 24 located between the left surface portion 26a and the protruding portion 27a, and the protruding portion 27a is prevented from coming off from the slit SL1.
  • the adhesive member 33b is caught on the circuit board 24 located between the right surface portion 26d and the protruding portion 27b, and the protruding portion 27b is prevented from coming off from the slit SL2.
  • the adhesive member 33a is fixed to the protruding portion 27a and is not fixed to the left surface portion 26a.
  • the direction in which the slit SL1 extends is defined as the extending direction (front-rear direction), and the direction orthogonal to the extending direction is defined as the width direction (left-right direction).
  • the adhesive member 33a is fixed (contacted) to the circuit board 24 on both sides in the width direction of the slit SL1 when viewed from above.
  • the adhesive member 33b is fixed to the protruding portion 27b and is not fixed to the right surface portion 26d.
  • a direction in which the slit SL2 extends is defined as an extending direction (front and rear), and a direction orthogonal to the extending direction is defined as a width direction (left and right direction).
  • the adhesive member 33b is fixed (contacted) to the circuit board 24 on both sides in the width direction of the slit SL2 when viewed from above.
  • the adhesive member 33a protrudes from the left and right sides of the slit SL1 when viewed from above. As a result, the adhesive member 33a is caught on the circuit board 24, and the protruding portion 27a is prevented from coming out of the slit SL1. For the same reason, the protruding portion 27b is prevented from coming out of the slit SL2.
  • the adhesive member 33a only needs to be fixed to the circuit board 24 on at least one side in the width direction of the slit SL1 when viewed from above.
  • the adhesive member 33b only needs to be fixed to the circuit board 24 on at least one side in the width direction of the slit SL2 when viewed from above.
  • FIG. 10 is an external perspective view of the plug 50a.
  • the plug 50a is different from the plug 50 in that it does not include the guide portions 56d and 56h. Since the other points of the plug 50a are the same as the plug 50, description thereof is omitted.
  • FIG. 11A is a sectional view of the optical transmission module 10b.
  • the optical transmission module 10 b is different from the optical transmission module 10 in the configuration of the receptacle cover 26 and the slider 56. Hereinafter, the optical transmission module 10b will be described focusing on the difference.
  • the projecting portions 56c and 56g of the slider 56 enter the lower side of the upper surface portions 26b and 26e from the inside.
  • the projecting portions 56c and 56g of the slider 56 enter the lower side of the upper surface portions 26b and 26e from the outside.
  • the light transmission module 10b having such a configuration can also exhibit the same effects as the light transmission module 10.
  • FIG. 11B is a cross-sectional structure diagram of the receptacle 20b.
  • the receptacle 20b is different from the receptacle 20 in the positions of the slits SL1 and SL2.
  • the receptacle 20b will be described focusing on the difference.
  • the slits SL1 and SL2 are in contact with the outer edge of the circuit board 24. More specifically, the slit SL1 extends from the vicinity of the left end of the front side of the circuit board 24 toward the front side. The slit SL2 extends from the vicinity of the right end of the front side of the circuit board 24 toward the front side. Thereby, the positioning parts 26k and 26j can be positioned in the slits SL1 and SL2 by sliding the circuit board 24 from the rear side to the front side and attaching the circuit board 24 to the receptacle cover 26. That is, the circuit board 24 can be easily attached to the receptacle cover 26.
  • the receptacle according to the present invention is not limited to the receptacles 20, 20a, 20b, and can be changed within the scope of the gist thereof.
  • the positioning units 28 and 58 are not limited to those shown in the optical transmission module 10.
  • the positioning part 28 may be a protrusion, and the positioning part 58 may be a groove.
  • the positioning part 28 may consist of a protrusion and a groove
  • channel, and the positioning part 58 may consist of a protrusion and a groove
  • the configuration of the receptacle 20 and the plug 50 may be interchanged. That is, in the optical transmission modules 10 and 10a, the plug 50 includes the slider 56, but the receptacle 20 may include the slider.
  • the pressure contact surfaces S11 to S14 are surfaces, but may be points such as protrusions.
  • the slider 56 moves in the front-rear direction within a horizontal plane, but may rise or fall while moving forward, for example. Further, the receptacle 20 and the plug 50 may be fixed by moving the slider 56 in different directions.
  • the number of slits is not limited to two, and may be one or three or more.
  • the present invention is useful for a connector, and more specifically, is excellent in that the positional deviation between the substrate and the holding member can be suppressed.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Electromagnetism (AREA)
  • Optical Couplings Of Light Guides (AREA)

Abstract

La présente invention réduit au minimum le déplacement entre un substrat et un élément de retenue. Un connecteur selon la présente invention est un connecteur disposé à la pointe d'une fibre optique à laquelle un connecteur homologue comprenant un corps d'appariement et un élément de retenue d'appariement est connecté, le connecteur comprenant : un substrat; un élément optique monté sur le substrat; un corps disposé sur le substrat et comprenant une partie du chemin optique reliant la fibre optique et l'élément optique; et un élément de retenue structuré à partir d'une plaque métallique courbée et fixé au substrat. Lorsque le connecteur et le connecteur homologue sont connectés, l'élément de retenue et l'élément de retenue d'appariement se poussent l'un contre l'autre de sorte que le corps et le corps d'appariement se poussent l'un contre l'autre. Une fente est formée dans le substrat et l'élément de retenue comprend une partie de positionnement positionnée dans la fente.
PCT/JP2017/041730 2016-12-09 2017-11-21 Connecteur WO2018105370A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016239743 2016-12-09
JP2016-239743 2016-12-09

Publications (1)

Publication Number Publication Date
WO2018105370A1 true WO2018105370A1 (fr) 2018-06-14

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ID=62490839

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2017/041730 WO2018105370A1 (fr) 2016-12-09 2017-11-21 Connecteur

Country Status (1)

Country Link
WO (1) WO2018105370A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005077846A (ja) * 2003-09-01 2005-03-24 Japan Aviation Electronics Industry Ltd 光コネクタ
JP2008040318A (ja) * 2006-08-09 2008-02-21 Hitachi Ltd 多チャンネル光モジュールの製造方法
JP2012027275A (ja) * 2010-07-23 2012-02-09 Japan Aviation Electronics Industry Ltd 光電複合コネクタ
JP2012032574A (ja) * 2010-07-30 2012-02-16 Hitachi Cable Ltd 光モジュール
US20140314423A1 (en) * 2013-04-22 2014-10-23 Avago Technologies General Ip (Singapore) Pte. Ltd. Optoelectronic Module With Flexible Substrate

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005077846A (ja) * 2003-09-01 2005-03-24 Japan Aviation Electronics Industry Ltd 光コネクタ
JP2008040318A (ja) * 2006-08-09 2008-02-21 Hitachi Ltd 多チャンネル光モジュールの製造方法
JP2012027275A (ja) * 2010-07-23 2012-02-09 Japan Aviation Electronics Industry Ltd 光電複合コネクタ
JP2012032574A (ja) * 2010-07-30 2012-02-16 Hitachi Cable Ltd 光モジュール
US20140314423A1 (en) * 2013-04-22 2014-10-23 Avago Technologies General Ip (Singapore) Pte. Ltd. Optoelectronic Module With Flexible Substrate

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