WO2018181729A1 - Optical waveguide member connector kit, optical waveguide member connector, and method for producing same - Google Patents

Abstract

This optical waveguide member connector kit comprises: an optical waveguide member including an optical waveguide; and a connector having a housing space capable of housing the optical waveguide member. The connector has an opening that leads from outside the connector to the optical waveguide member when the optical waveguide member is housed in the housing space. At least one of the optical waveguide member and the connector has a groove that, when the optical waveguide member is housed in the housing space, is in communication with the opening and faces at least the other of the optical waveguide member and the connector.

Description

Optical waveguide member connector kit, optical waveguide member connector and manufacturing method thereof

The present invention relates to an optical waveguide member connector kit, an optical waveguide member connector and a manufacturing method thereof, and more particularly, an optical waveguide member connector kit, an optical waveguide member connector manufacturing method using the same, and an optical waveguide member connector manufactured thereby. About.

Conventionally, it is known to manufacture an optical waveguide connector by housing the optical waveguide in a connector.

The optical waveguide is inserted along the front-rear direction into the through-groove of the optical waveguide connector having a through-groove penetrating in the front-rear direction and a window portion communicating in the up-down direction, and then the window portion is filled with a fixing resin material. Thus, a method of fixing the optical waveguide to the optical waveguide connector has been proposed (see, for example, Patent Document 1).

JP 2011-48157 A

However, in the method of Patent Document 1, the optical waveguide is only bonded to the optical waveguide connector by the fixing resin material filled in the window portion, and the optical waveguide and the optical waveguide connector are not sufficiently bonded. There is a problem that.

The present invention provides an optical waveguide member connector kit, an optical waveguide member connector, and a method for manufacturing the same, which can improve the adhesive force of the optical waveguide to the connector.

The present invention (1) includes an optical waveguide member provided with an optical waveguide and a connector having an accommodation space capable of accommodating the optical waveguide member, wherein the optical waveguide member is accommodated in the accommodation space. When having an opening from the outside of the connector to the optical waveguide member, when at least one of the optical waveguide member and the connector is accommodated in the accommodation space, An optical waveguide member connector kit including a groove that communicates with the opening and faces at least the other of the optical waveguide member and the connector.

In this optical waveguide member connector kit, when the optical waveguide is accommodated in the accommodating space, at least one of the optical waveguide and the connector communicates with the opening and has a groove facing at least the other of the optical waveguide and the connector. Have. Therefore, if an adhesive is injected into the opening, the adhesive flows into the groove from the opening. As a result, the opening and further the groove are filled with the adhesive. Since the adhesive filled in the groove faces at least the other of the optical waveguide member and the connector, the adhesive force of the optical waveguide member to the connector can be improved.

The present invention (2) is the optical waveguide according to (1), wherein there are a plurality of the openings so as to communicate with each other through the groove when the optical waveguide member is accommodated in the accommodating space. Includes member connector kit.

If air remains in the groove, the adhesive is less likely to flow into the groove, but in this optical waveguide member connector kit, if the adhesive flows into the groove from one of the plurality of openings, Air can escape from other openings. Therefore, the adhesive can be efficiently filled into the groove. As a result, the adhesive force of the optical waveguide member to the connector can be further improved.

In the present invention (3), the connector includes a main body having a wall, and a lid that sandwiches the optical waveguide member with the wall when the optical waveguide member is accommodated in the accommodation space. Or the optical waveguide member connector kit as described in (2) is included.

In this optical waveguide member connector kit, since the connector includes a main body having a wall and a lid, the optical waveguide is sandwiched between the wall and the lid when the optical waveguide is accommodated in the accommodating space. Can be positioned relative to the connector. Therefore, the optical waveguide and the connector can be bonded with high accuracy.

The present invention (4) includes the optical waveguide member connector kit according to any one of (1) to (3), wherein the optical waveguide member is an opto-electric hybrid board further including an electric circuit board.

In this optical waveguide member connector kit, the adhesive force of the opto-electric hybrid board to the connector can be improved.

The present invention (5) includes a first step of housing the optical waveguide member in the housing space in the optical waveguide member connector kit according to any one of (1) to (4), and the first step A second step of bonding the optical waveguide member to the connector by injecting an adhesive having fluidity into the opening and allowing the adhesive to flow into the groove later; The manufacturing method of an optical waveguide member connector is included.

In this optical waveguide member connector manufacturing method, the adhesive can be filled into the groove as well as the opening in the second step, so that the adhesive force of the optical waveguide member to the connector can be improved.

This invention (6) is provided with the optical waveguide member and the connector which accommodates the said optical waveguide member, The said connector has an opening part which reaches the said optical waveguide member from the said connector outside, The said optical waveguide member and At least one of the connectors has a groove that communicates with the opening and faces at least the other of the optical waveguide member and the connector, and the opening and the groove are filled with an adhesive. Includes a waveguide member connector.

In this optical waveguide member connector, the groove is filled with the adhesive as well as the opening. Therefore, the adhesive force of the optical waveguide member to the connector can be improved.

According to the optical waveguide member connector kit, the optical waveguide member connector and the manufacturing method thereof of the present invention, the adhesive force of the optical waveguide member to the connector can be improved.

1A to 1C are perspective views of the connector kit according to the first embodiment of the present invention. FIG. 1A shows a lid, FIG. 1B shows an opto-electric hybrid board, and FIG. 1C shows a main body. 2A to 2D are a plan view and a bottom view of the opto-electric hybrid board connector kit shown in FIGS. 1A to 1C. FIG. 2A is a bottom view of the lid, and FIG. 2B is a plan view of the opto-electric hybrid board. FIG. 2C is a bottom view of the opto-electric hybrid board, and FIG. 2D is a plan view of the main body. FIG. 3 is a perspective view of an opto-electric hybrid board connector manufactured from the opto-electric hybrid board connector kit shown in FIGS. 1A to 2D. FIG. 4 is a plan view of the opto-electric hybrid board connector shown in FIG. 5 shows the opto-electric hybrid board connector shown in FIG. 4. FIG. 5A is a cross-sectional view taken along the line aa, and FIG. 5B is a front view. 6 shows a cross-sectional view of the opto-electric hybrid board connector of FIG. 4 along the line bb. 7 shows a perspective view of a modification of the opto-electric hybrid board connector shown in FIG. 8A to 8D are perspective views of the opto-electric hybrid board connector kit according to the second embodiment and the modification of the present invention. FIG. 8A is a bottom view of the lid, and FIG. 8B is a plan view of the opto-electric hybrid board. 8C is a bottom view of the opto-electric hybrid board, FIG. 8D is a plan view of the main body, and FIG. 8E is a modified example indicated by a virtual line in FIG. 8D, and is a cross-sectional view taken along aa in FIG. Show. FIG. 9 is a cross-sectional view of the opto-electric hybrid board connector manufactured from the opto-electric hybrid board connector kit shown in FIGS. 8A to 8C, corresponding to the aa line in FIG. 8D. 10 shows a cross-sectional view along the longitudinal direction of the opto-electric hybrid board connector shown in FIG. FIG. 11 is a perspective view of the opto-electric hybrid board connector shown in FIGS. 9 and 10 as viewed from the rear lower side. 12A to 12D are a plan view and a bottom view of the opto-electric hybrid board connector kit according to the third embodiment of the present invention. FIG. 12A is a bottom view of the lid, and FIG. 12B is a plan view of the opto-electric hybrid board. FIG. 12C is a bottom view of the opto-electric hybrid board, and FIG. 12D is a plan view of the main body. FIG. 13 is a cross-sectional view of the opto-electric hybrid board connector manufactured from the opto-electric hybrid board connector kit shown in FIGS. 12A to 12C, corresponding to the aa line in FIGS. 12A to 12D. 14 shows a perspective view of the opto-electric hybrid board connector shown in FIG. 15A to 15E are a plan view and a bottom view of the opto-electric hybrid board connector kit according to the third embodiment and the modification of the present invention. FIG. 15A is a bottom view of the lid, and FIG. 15B is an opto-electric hybrid board. FIG. 15C is a bottom view of the opto-electric hybrid board, FIG. 15D is a plan view of the main body, and FIG. 15E is a modification shown by the phantom line in FIG. 15D, which is along aa in FIG. A cross-sectional view is shown. FIG. 16B is a perspective view of the opto-electric hybrid board connector manufactured from the opto-electric hybrid board connector kit shown in FIGS. 15 to 15E, as viewed from the upper front side. 17A to 17D are a plan view and a bottom view of an opto-electric hybrid board connector kit according to a modification of the third embodiment of the present invention. FIG. 17A is a bottom view of the lid, and FIG. 17B is an opto-electric hybrid board. FIG. 17C is a bottom view of the opto-electric hybrid board, and FIG. 17D is a plan view of the main body. 18A to 18D are a plan view and a bottom view of an opto-electric hybrid board connector kit according to a further modification. FIG. 18A is a bottom view of the lid, FIG. 18B is a plan view of the opto-electric hybrid board, and FIG. FIG. 18D is a bottom view of the opto-electric hybrid board, and FIG. 18D is a plan view of the main body. 19A to 19D are a plan view and a bottom view of an opto-electric hybrid board connector kit according to a further modification. FIG. 19A is a bottom view of the lid, FIG. 19B is a plan view of the opto-electric hybrid board, and FIG. FIG. 19D is a bottom view of the opto-electric hybrid board, and FIG. 19D is a plan view of the main body. 20A to 20C are a plan view and a bottom view of the opto-electric hybrid board connector kit of Example 1 of the present invention, FIG. 20A is a bottom view of the lid, and FIG. 20B is a plan view of the opto-electric hybrid board, FIG. 20C is a bottom view of the opto-electric hybrid board, and FIG. 20D is a plan view of the main body. 21A to 21C are cross-sectional views of the opto-electric hybrid board connector manufactured from the opto-electric hybrid board connector kit shown in FIGS. 20A to 20D. FIG. 21A is a cross-sectional view taken along the line aa. FIG. 21A is a sectional view taken along the line bb, and FIG. 21A is a sectional view taken along the line cc. FIG. 22 is a sectional view taken along the line dd of the opto-electric hybrid board connector manufactured from the opto-electric hybrid board connector kit shown in FIGS. 20A to 20D. FIG. 23 is a perspective view of the opto-electric hybrid board connector kit shown in FIGS. 20A to 20D. FIG. 23A shows a lid, FIG. 23B shows an opto-electric hybrid board, and FIG. 23C shows a main body. FIG. 24 is a perspective view of an opto-electric hybrid board connector manufactured from the opto-electric hybrid board connector kit shown in FIGS. 23A to 23C. FIG. 25B shows a cross-sectional view along the longitudinal direction of the opto-electric hybrid board connector manufactured from the opto-electric hybrid board connector kit of Example 2 of the present invention. 26A to 26C are a plan view and a bottom view of the opto-electric hybrid board connector kit of Example 3 of the present invention, FIG. 26A is a bottom view of the lid, and FIG. 26B is a plan view of the opto-electric hybrid board, FIG. 26C is a bottom view of the opto-electric hybrid board, and FIG. 26D is a plan view of the main body. 27A to 27C are cross-sectional views of the opto-electric hybrid board connector manufactured from the opto-electric hybrid board connector kit shown in FIGS. 26A to 26D. FIG. 27A is a cross-sectional view taken along the line aa. FIG. 27A is a sectional view taken along line bb, and FIG. 27A is a sectional view taken along line cc. FIG. 28B is a cross-sectional view taken along the line dd of the opto-electric hybrid board connector manufactured from the opto-electric hybrid board connector kit shown in FIGS. 26A to 26D.

2A to 2D, the horizontal direction on the paper is the front-rear direction (longitudinal direction, first direction). The right side of the drawing is the front side (one in the longitudinal direction and the other in the first direction), and the left side of the drawing is the rear side (the other in the longitudinal direction and the other in the first direction).

2A to 2D, the vertical direction of the paper is the horizontal direction (width direction, second direction orthogonal to the first direction). The upper side of the drawing is the right side (one in the width direction is one in the second direction), and the lower side of the drawing is the left side (the other in the width direction is the other in the second direction).

2A to 2D, the paper thickness direction is the vertical direction (thickness direction, third direction orthogonal to the first direction and the second direction). The front side of the paper is the upper side (one in the thickness direction and the other in the third direction), and the back side of the paper is the lower side (the other in the thickness direction and the other in the third direction).

Specifically, the direction conforms to the direction arrow in each figure.

The definition of this direction is not intended to limit the orientation at the time of manufacture and use of the connector kit 1 and the opto-electric hybrid board connector 18 (described later).

In FIG. 4, the adhesive 19 (described later) is omitted in order to clearly show the shape and arrangement of the central lateral groove 40 (described later). In each perspective view, the insulating base layer 7, the insulating cover layer 9, the under cladding layer 10, the core layer 11, and the over cladding layer 12 (described later) are the shapes and arrangement of the electric circuit board 4 and the optical waveguide 5 including them. Is omitted for clarity.

(First embodiment)
(Basic configuration of the opto-electric hybrid board connector kit 1)
As shown in FIGS. 1 to 3, this opto-electric hybrid board connector kit 1 has an opto-electric hybrid board 2 as an example of an optical waveguide member mounted on a connector 3 so as to provide an opto-electric board as an example of an optical waveguide member connector. This is a kit for manufacturing the mixed board connector 18. Specifically, the connector kit 1 includes the opto-electric hybrid board 2 and the connector 3 as separate bodies.

The opto-electric hybrid board connector kit 1 is not a completed product of the opto-electric hybrid board connector 18 but a set of components, and the connector 2 and the opto-electric hybrid board 3 are sold as a set.

In the following description, the opto-electric hybrid board connector kit 1 may be simply referred to as a connector kit 1.

As shown in FIGS. 1A, 2B and 2C, the opto-electric hybrid board 2 has a substantially flat plate shape extending in the front-rear direction. Moreover, the opto-electric hybrid board 2 has flexibility (flexibility or plasticity), for example. The opto-electric hybrid board 2 has, for example, a planar view shape in which both end edges in the width direction of the rear end portion and the front end portion (corresponding to the mounting portion 13 described later) are located outside the other end edges in the width direction. . As shown in FIG. 5A, FIG. 5B, and FIG. 6, the opto-electric hybrid board 2 includes an electric circuit board 4 and an optical waveguide 5 in order toward the upper side.

The electric circuit board 4 forms the lower surface of the opto-electric hybrid board 2.

The electric circuit board 4 includes a metal support layer 6, a base insulating layer 7, a conductor layer 8, and a cover insulating layer 9 in order toward the lower side in the thickness direction.

The metal support layer 6 supports the conductor layer 8. The metal support layer 6 is provided at the rear end portion of the electric circuit board 4, and the front end portion of the base insulating layer 7 described below and the lower surface of the middle portion in the front-rear direction are exposed.

The base insulating layer 7 insulates the metal support layer 6 and the conductor layer 8. The base insulating layer 7 is provided in the entire area of the electric circuit board 4. Examples of the material of the base insulating layer 7 include a resin such as polyimide. The insulating base layer 7 has a thickness of, for example, 2 μm or more and 60 μm or less.

The conductor layer 8 is provided at least at the rear end of the electric circuit board 4. A plurality of conductor layers 8 are arranged in parallel at intervals in the width direction. The conductor layer 8 includes a wiring 90 and a terminal portion 91 provided at the rear end thereof. Examples of the material of the conductor layer 8 include a conductor. The thickness of the conductor layer 8 is, for example, 2 μm or more, for example, 100 μm or less.

The cover insulating layer 9 is a protective layer that covers and protects the wiring 90. On the other hand, the insulating cover layer 9 exposes the terminal portion 91. The material of the insulating cover layer 9 is the same as that of the insulating base layer 7. The insulating cover layer 9 has a thickness of, for example, 2 μm or more and 60 μm or less.

The optical waveguide 5 forms the upper surface of the opto-electric hybrid board 2. The optical waveguide 5 is located on the electric circuit board 4. The optical waveguide 5 is a strip-type optical waveguide, and specifically includes an under cladding layer 10, a core layer 11, and an over cladding layer 12 in order toward the upper side.

The underclad layer 10 has a substantially plate shape having the same planar view shape as the optical waveguide 5. The under cladding layer 10 is provided on the upper surfaces of the metal support layer 6 and the base insulating layer 7.

The core layer 11 is provided on the upper surface of the under cladding layer 10. A plurality of core layers 11 are arranged at intervals in the width direction. The plurality of core layers 11 have a linear shape along the front-rear direction. The core layer 11 has a mirror surface 92 at the rear end.

The over clad layer 12 is provided on the upper surface of the under clad layer 10 so as to cover the core layer 11. The over clad layer 12 has a substantially plate shape having the same planar view shape as the under clad layer 10.

Examples of the material of the under cladding layer 10, the core layer 11, and the over cladding layer 12 include a transparent resin such as an epoxy resin. Of the under cladding layer 10, the core layer 11, and the over cladding layer 12, the refractive index of the core layer 11 is higher than the refractive index of the under cladding layer 10 and the over cladding layer 12.

The tip of the opto-electric hybrid board 2 is a mounting part 13 to be mounted on the connector 3.

As shown in FIGS. 1B, 2B, and 2C, the front and rear center portions of the both ends in the width direction of the mounting portion 13 are located on both outer sides in the width direction from both front and rear ends of the both ends in the width direction of the mounting portion 13. Therefore, the mounting portion 13 includes two substrate protruding portions 14 whose front and rear center portions protrude outward in the width direction.

The two substrate protrusions 14 have a substantially rectangular shape in plan view. Specifically, each of the two board projecting portions 14 includes a first front fitting surface 15 that extends in the width direction and a first rear that is disposed to face the rear side of the first front fitting surface 15 with a space therebetween. It has the fitting surface 16, and the 1st connection surface 17 which connects the width direction outer side edge of the 1st front fitting surface 15 and the 1st back fitting surface 16.

The length in the width direction of the first front fitting surface 15 and the first rear fitting surface 16 (the protruding length of the board protruding portion 14) is, for example, 0.01 mm or more, preferably 0.05 mm or more. For example, it is 1 mm or less, preferably 0.5 mm or less. The front-rear direction length of the first connecting surface 17 (the length between the first front fitting surface 15 and the first rear fitting surface 16) is, for example, 0.01 mm or more, preferably 0.1 mm or more, For example, it is 5 mm or less, preferably 1 mm or less.

The electric circuit board 4 is provided with two central lateral grooves 40 which will be described in detail later.

As shown in FIGS. 1A and 1C, the basic configuration of the connector 3 excluding an opening 70 (see FIGS. 3 and 4) and a groove 30 to be described later is, for example, the JPCA standard (detailed standard of PMT optical connector, JPCA- This is the same as the PMT optical connector conforming to PE03-01-07S-2006, Japan Electronic Circuit Industries Association.

Specifically, the connector 3 includes a main body 21 and a lid 22 as separate bodies.

As shown in FIGS. 1C, 2D, and 5B, the main body 21 has a U-shape in front view that is opened upward. Therefore, the main body 21 has an accommodation space 29 inside thereof. The main body 21 integrally includes a bottom wall 23 as an example of a wall and two extending walls 24.

The bottom wall 23 has a substantially rectangular flat plate shape extending in the left-right direction.

The extending wall 24 has a shape that extends upward from both left and right edges of the bottom wall 23. Each of the two extending walls 24 has a substantially rectangular flat plate shape extending in the vertical direction. The inner surfaces of the two extending walls 24, together with the bottom surface of the bottom wall 23, define an accommodation space 29 for accommodating the opto-electric hybrid board 2.

The front-rear direction center portion of the inner surface of the extension wall 24 is located on the outer side in the width direction with respect to the front-rear both end portions of the inner surface of the extension wall 24. Thereby, the front-rear direction center part of the inner surface of the extending wall 24 includes the main body recessed part 25 dented in both widthwise outer sides. The main body recess 25 is formed by the inner surface (the inner surface facing the accommodation space 29) of the extending wall 24 being recessed toward both outer sides in the width direction.

The main body recess 25 includes a second front fitting surface 26 extending in the width direction, a second rear fitting surface 27 disposed opposite to the rear side of the second front fitting surface 26 with a space therebetween, and a second first fitting. It has the 2nd connection surface 28 which connects the width direction outer side edge of the mating surface 26 and the 2nd rear fitting surface 27. As shown in FIG.

As shown in FIGS. 3, 4, and 5 A, the second front fitting surface 26 and the second rear fitting surface 27 are arranged so that the opto-electric hybrid board is used when the opto-electric hybrid board 2 is accommodated in the accommodating space 29. Each of the two first front fitting surfaces 15 and the first rear fitting surface 16 is configured to be fitted (contacted). Specifically, the length of the second connecting surface 28 (the length between the first front fitting surface 15 and the first connecting surface 17) is the same as the length of the first connecting surface 17.

Further, the second connecting surface 28 is configured so that when the opto-electric hybrid board 2 is accommodated in the accommodating space 29, the first connecting face 17, the second front fitting face 26, and the second rear fit of the opto-electric hybrid board 2 are accommodated. Together with both widthwise outer side portions of the mating surface 27, the opening 70 can be formed. Specifically, the length of the second front fitting surface 26 and the second rear fitting surface 27 (the depth of the main body recessed portion 25) is the length of the first front fitting surface 15 and the first rear fitting surface 16. This exceeds the length (the protruding length of the substrate protruding portion 14). Note that the entire second connecting surface 28 is an opening forming surface for forming an opening 70 (a central lower opening 71 and a central upper opening 72 described later). On the other hand, the entire first connection surface 17 is also an opening forming surface for forming the central lower opening 71.

It should be noted that the rear end portion of the extending wall 24 is provided with a flange portion 19 that protrudes outward in the width direction.

As shown in FIGS. 1A, 2A and 4, the lid 22 has a substantially rectangular flat plate shape extending in the front-rear direction.

Further, the front and rear center portions of both end edges in the width direction of the lid 22 are located on both outer sides in the width direction with respect to both front and rear end portions of the both end edges in the width direction of the lid 22. Accordingly, the lid 22 includes two lid projecting portions 30 whose front and rear center portions project outward in the width direction. The lid protrusion 30 includes a third front fitting surface 31 that extends in the width direction, a third rear fitting surface 32 that is opposed to the rear side of the third front fitting surface 31 with a space therebetween, and a third tip. It has the 3rd connection surface 33 which connects the width direction outer side edge of the fitting surface 31 and the 3rd back fitting surface 32. FIG.

The third front fitting surface 31 and the third rear fitting surface 32 are fitted with the second front fitting surface 26 and the second rear fitting surface 27 of the main body 21 when the lid 22 is attached to the main body 21. (Contact). Further, each of the third front fitting surface 31 and the third rear fitting surface 32 is photoelectrically mixed when the opto-electric hybrid board 2 is accommodated in the accommodating space 29 and the lid 22 is attached to the main body 21. The first front fitting surface 15 and the first rear fitting surface 16 of the substrate 2 are positioned the same.

When the lid 22 is attached to the main body 21, the third connecting surface 33 is opened together with the second connecting surface 28 of the main body 21, the second front fitting surface 26 and the second rear fitting surface 27 of the main body 21. 70 can be formed. Specifically, the lengths of the third front fitting surface 31 and the third rear fitting surface 32 (the protruding length of the lid protruding portion 30) are the second front fitting surface 26 and the second rear fitting surface 27. Less than the length of Note that the length of the third connecting surface 33 is the same as the length of the second connecting surface 28 and the protruding length of the substrate protruding portion 14, respectively.

The third connecting surface 33 is an opening forming surface for forming the central upper opening 72.

The front-rear direction length of the lid 22 is the same as the front-rear direction length of the main body 21.

The connector 3 is, for example, hard, and specifically, rigid so that the lid 22 can be pressed against the opto-electric hybrid board 2 and the main body 21 can be pressed from the lid 22 as described later. Have

The material of the connector 3 can be accurately formed into the shapes of the main body 21 and the lid 22 described above, and has mechanical strength that can withstand pressing, and further has a bonding property (affinity) with an adhesive 19 (described later). For example, a resin, a metal, preferably a resin, and more preferably a hard resin.

(Central lateral groove)
As shown in FIGS. 1A to 2D, the connector kit 1 includes a central lateral groove 40.

For example, the central lateral groove 40 is provided in the opto-electric hybrid board 2, the main body 21 and / or the lid 22 in the connector kit 1. For example, the central lateral groove 40 includes at least one of the first lateral groove 41 and the second lateral groove 42 provided in the opto-electric hybrid board 2, the third lateral groove 43 provided in the main body 21, and the fourth lateral groove 44 provided in the lid 22. It is equipped with.

Next, an example in which the central lateral groove 40 includes all (four) of the first lateral groove 41, the second lateral groove 42, the third lateral groove 43, and the fourth lateral groove 44 will be described.

In addition, about the structure etc. which are the same as the 1st horizontal groove 41 about the 2nd horizontal groove 42, the 3rd horizontal groove 43, and the 4th horizontal groove 44, the description is abbreviate | omitted.

1B, FIG. 2B, and FIG. 6, the 1st horizontal groove 41 is provided in the upper surface of the opto-electric hybrid board | substrate 2. As shown in FIG. Specifically, the first lateral groove 41 is provided on the upper surface of the optical waveguide 5 in the mounting portion 13. Specifically, the first lateral groove 41 is provided on the upper surface of the over clad layer 12 in the mounting portion 13 and has a shape extending along the width direction. The first lateral groove 41 has a substantially linear shape in plan view extending between the front and rear center portions of the two first connecting surfaces 17. Each of both end edges in the width direction of the first lateral groove 41 is exposed at each of the two first connecting surfaces 17.

Further, the first lateral grooves 41 extend so as to cross the core layer 11 in a plan view. Further, the first lateral groove 41 has, for example, a shape in which the upper surface of the over cladding layer 12 is cut out in a substantially rectangular cross section. However, the thickness (depth) of the first lateral groove 41 is set so as not to reach the core layer 11. That is, the first lateral grooves 41 do not expose the core layer 11 (not cut off) and are spaced from the core layer 11.

The depth of the first lateral groove 41 is, for example, 0.003 mm or more, preferably 0.005 mm or more, more preferably 0.01 mm or more, still more preferably 0.1 mm or more, and for example, 1 mm or less. Preferably, it is 0.5 mm or less. The width (front-rear direction length) of the first lateral groove 41 is, for example, 0.003 mm or more, preferably 0.005 mm or more, more preferably 0.01 mm or more, and further preferably 0.1 mm or more. For example, it is 10 mm or less, preferably 3 mm or less.

As shown in FIGS. 2C and 6, the second lateral groove 42 is provided on the lower surface of the opto-electric hybrid board 2. Specifically, it is provided on the lower surface of the electric circuit board 4 in the mounting portion 13 and has a shape extending along the width direction. The second lateral groove 42 has a substantially linear shape in plan view extending between the front and rear center portions of the two first connecting surfaces 17. Each of both end edges in the width direction of the second lateral groove 42 is exposed at each of the two first connecting surfaces 17. The second lateral groove 42 extends so as to cross the wiring 90 (conductor layer 8) in plan view. Moreover, the 2nd horizontal groove 42 has a shape which notched the lower surface of the cover insulating layer 9 in cross-sectional substantially rectangular shape, for example. However, the thickness (depth) of the second lateral groove 42 is set so as not to reach the wiring 90. In other words, the second lateral groove 42 does not expose (not cut off) the wiring 90 and is spaced from the wiring 90.

The arrangement and width of the second lateral groove 42 in plan view are the same as those of the first lateral groove 41. The depth of the second lateral groove 42 is, for example, 0.003 mm or more, preferably 0.005 mm or more, more preferably 0.01 mm or more, and further preferably 0.1 mm or more. It is 1 mm or less, preferably 0.5 mm or less.

As shown in FIGS. 1C, 2D, and 6, the third lateral groove 43 is provided in the main body 21. Specifically, the third lateral groove 43 is provided on the bottom surface of the bottom wall 23. The third lateral groove 43 has a substantially linear shape in plan view extending between the front and rear center portions of the two second connecting surfaces 28. The cross-sectional shape, depth, and width of the third lateral groove 43 are the same as those of the first lateral groove 41.

2A and 6, the fourth lateral groove 44 is provided on the lower surface of the lid 22. Specifically, the fourth horizontal groove 44 has a substantially linear shape in plan view extending between the front and rear center portions of the two third connecting surfaces 33. The arrangement of the fourth lateral groove 44 in plan view is the same as that of the second lateral groove 42.

The first horizontal groove 41, the second horizontal groove 42, the third horizontal groove 43, and the fourth horizontal groove 44 are arranged in the front-rear direction when the opto-electric hybrid board 2 is stored in the storage space 29 and the lid 22 is attached to the main body 21. Duplicate completely.

(Manufacturing method of opto-electric hybrid board connector)
Next, a method for manufacturing the opto-electric hybrid board connector 18 using the connector kit 1 will be described.

To manufacture the connector kit 1, first, the opto-electric hybrid board 2 and the connector 3 are prepared as shown in FIGS. 1A to 1D.

Next, the opto-electric hybrid board 2 is attached to the connector 3. Specifically, the mounting portion 13 of the opto-electric hybrid board 2 is housed in the housing space 29 of the connector 3 (first step).

In the first step, first, the opto-electric hybrid board 2 is placed on the bottom wall 23 of the main body 21 with the electric circuit board 4 facing down and the optical waveguide 5 facing up.

As shown in FIG. 1B, FIG. 1C and FIG. 3, at this time, each of the first front fitting surface 15 and the first rear fitting surface 16 of the board protruding portion 14 is the second first fitting of the main body recess 25. The board protruding portion 14 is accommodated (fitted) in the widthwise inner portion of the main body recess 25 so as to be fitted (surface contact) with each of the mating surface 26 and the second rear fitting surface 27. On the other hand, as shown in FIG. 4, there is a gap between the first connection surface 17 of the substrate protruding portion 14 and the second connection surface 28 of the main body recess 25, thereby, as shown in FIG. 5A. A central lower opening 71 is formed.

In addition, as shown in FIG. 5B, both side surfaces in the width direction of the mounting portion 13 other than the substrate protruding portion 14 are in contact with the inner surface of the extending wall 24 of the main body 21.

Thereafter, the lid 22 is pressed against the opto-electric hybrid board 2.

At this time, as shown in FIGS. 1A to 1D and FIG. 5A, the third front fitting surface 31 and the third rear fitting surface 32 of the lid projecting portion 30 are respectively connected to the second front fitting surface of the main body recess 25. The lid protrusion 30 is housed (fitted) in the widthwise inner portion of the main body recess 25 so as to fit (surface contact) with each of the 26 and the second rear fitting surface 27. On the other hand, a space is provided between the third connection surface 33 of the lid protrusion 30 and the second connection surface 28 of the main body recess 25, thereby forming a central upper opening 72.

The center lower opening 71 and the center upper opening 72 form an opening 70. The opening 70 has a shape extending in the up-down direction when the center lower opening 71 and the center upper opening 72 communicate vertically. Specifically, the opening 70 is an adhesive injection hole for injecting the adhesive 19 from the outside to the opto-electric hybrid board 2 and the main body 21 of the connector 3.

As shown in FIG. 4, the opening 70 corresponds to the two third connection surfaces 33, the two first connection surfaces 17, and the two second connection surfaces 28 on the left and right sides of the lid protrusion 30. Two are provided.

Then, the central lateral groove 40 communicates with the two openings 70.

Specifically, both end edges in the width direction of the first horizontal groove 41 and the second horizontal groove 42 communicate with the two opening portions 70 from the two first connection surfaces 17 respectively.

Each of both end edges in the width direction of the third lateral groove 43 communicates with each of the two openings 70 from the bottom surface of the bottom wall 23.

Each end edge in the width direction of the fourth lateral groove 44 communicates with each of the two openings 70 from the lower surface of the lid 22.

As shown in FIG. 6, the first lateral groove 41 faces the lid 22. More specifically, the first lateral groove 41 faces the fourth lateral groove 44.

On the other hand, the fourth lateral groove 44 faces the optical waveguide 5 (the opto-electric hybrid board 2).

The second lateral groove 42 faces the main body 21 (bottom wall 23). More specifically, the second lateral groove 42 faces the third lateral groove 43.

On the other hand, the third lateral groove 43 faces the electric circuit board 4 (the opto-electric hybrid board 2). The pressing pressure of the lid 22 against the opto-electric hybrid board 2 is such that the opto-electric hybrid board 2 is against the main body 21 and the lid 22. It is set so as not to move relatively.

By pressing the lid 22 against the opto-electric hybrid board 2, the opto-electric hybrid board 2 is positioned with respect to the main body 21 and temporarily fixed. At that time, when the opto-electric hybrid board 2 has distortion (deflection, warp, etc.) based on flexibility, it is plastically deformed by the above-described pressing and becomes a flat plate shape along the surface direction.

Thereafter, as shown in FIG. 5, the adhesive 19 having fluidity is injected only into the left opening 70 of the two openings 70, and the adhesive 19 flows into the central lateral groove 40 from the opening 70. (Second step).

The adhesive 19 is, for example, liquid or semi-solid. Preferably, it is liquid from the viewpoint of obtaining excellent fluidity in the central lateral groove 40. Examples of the adhesive 19 include a curable type and a pressure-sensitive adhesive type, and preferably a curable type from the viewpoint of obtaining excellent fluidity (excellent fluidity when uncured) and high adhesiveness. It is done.

When the adhesive 19 is injected into the left opening 70 from above, it flows into the four central lateral grooves 40 from the left opening 70. Then, the four central lateral grooves 40 are filled. Specifically, the adhesive 19 passes from the left opening 70 while filling the four central lateral grooves 40, and then reaches the right opening 70. Note that the adhesive 19 is partially or completely filled in the right opening 70.

As shown in FIG. 6, the adhesive 19 filled in the first lateral grooves 41 and the fourth lateral grooves 44 contacts (adheres to) both the opto-electric hybrid board 2 and the lid 22. The adhesive 19 filled in the second horizontal groove 42 and the third horizontal groove 43 contacts (adheres to) both the opto-electric hybrid board 2 and the main body 21.

Subsequently, if the adhesive 19 is curable, it is cured.

The opto-electric hybrid board 2 is bonded and fixed to the main body 21 and the lid 22 (connector 3) by the adhesive 19 (second step).

Thus, the opto-electric hybrid board connector 18 including the opto-electric hybrid board 2 and the connector 3 that accommodates it is manufactured, and the central lateral groove 40 and the opening 70 are filled with the adhesive 19.

Thereafter, the core layer 11 in the opto-electric hybrid board connector 18 is optically connected to an optical member such as another optical waveguide or an optical cable.

In the connector kit 1, when the opto-electric hybrid board 2 is accommodated in the accommodation space 29, the opto-electric hybrid board 2 and the connector 3 communicate with the opening 70, and the opto-electric hybrid board 2 and It has a central transverse groove 40 that faces both of the connectors 3. Therefore, if the adhesive 19 is injected into the opening 70, the adhesive 19 flows into the central lateral groove 40 from the opening 70. As a result, the opening 19 and further the central lateral groove 40 are filled with the adhesive 19. Since the adhesive 19 filled in the central lateral groove 40 faces both the opto-electric hybrid board 2 and the connector 3, the adhesive force of the opto-electric hybrid board 2 to the connector 3 can be improved.

If air remains in the central lateral groove 40, it becomes difficult for the adhesive 19 to flow into the central lateral groove 40. However, in this connector kit 1, for example, of the two openings 70, the left lateral opening 70 leads to the central lateral groove. Since the adhesive 19 is caused to flow into 40, air can be released from the opening 70 on the right side. Therefore, the adhesive 19 can be efficiently filled into the central lateral groove 40. As a result, the adhesive force of the opto-electric hybrid board 2 to the connector 3 can be further improved.

Since the connector 3 includes the bottom wall 23 and the lid 22, when the opto-electric hybrid board 2 is accommodated in the accommodation space 29, the opto-electric hybrid board 2 is moved vertically by the bottom wall 23 and the lid 22. The opto-electric hybrid board 2 can be positioned with respect to the connector 3 by being sandwiched while applying pressure. Therefore, the opto-electric hybrid board 2 and the connector 3 can be bonded with high accuracy.

In this connector kit 1, the adhesive force of the opto-electric hybrid board 2 to the connector 3 can be improved.

According to this method of manufacturing the opto-electric hybrid board connector 18, the adhesive 19 can be filled into the central lateral groove 40 together with the opening 70 in the second step. Can be improved.

In this opto-electric hybrid board connector 18, the adhesive 19 is filled in the central lateral groove 40 as well as the opening 70. Therefore, the adhesive force with respect to the connector 3 of the opto-electric hybrid board 2 can be improved.

(Modification)
Next, a modification of the first embodiment will be described. In the following modified examples, the same members and steps as those in the first embodiment described above are denoted by the same reference numerals, and detailed description thereof is omitted. Moreover, each modification can be combined suitably. Furthermore, each modification can have the same effects as those of the first embodiment, unless otherwise specified.

2A to 2D, in the connector kit 1 of the first embodiment, the central lateral groove 40 includes a first lateral groove 41, a second lateral groove 42, a third lateral groove 43, and a fourth lateral groove 44. However, the central lateral groove 40 is not limited to this. For example, any three, any two, or any one is selected from the group consisting of the first horizontal groove 41, the second horizontal groove 42, the third horizontal groove 43, and the fourth horizontal groove 44. be able to.

In addition, each central lateral groove 40, that is, each of the first lateral groove 41, the second lateral groove 42, the third lateral groove 43, and the fourth lateral groove 44 is one, but the number is not limited to this, and a plurality of There may be.

In the first embodiment, as shown by the solid line in FIG. 6, in the cross section along the thickness direction and the front-rear direction, the four central lateral grooves 40 are arranged at the same position in the front-rear direction.

However, as indicated by phantom lines in FIG. 6, the four central lateral grooves 40 can be partially or completely displaced, for example.

For example, when the opto-electric hybrid board 2 is accommodated in the accommodation space 29 and the lid 22 is attached to the main body 21, the fourth lateral groove 44 is spaced forward from the first lateral groove 41, for example. Be placed. Thereby, the 1st horizontal groove 41 and the 4th horizontal groove 44 shift in the front-back direction. In this case, the first horizontal groove 41 faces the lower surface of the lid 22 other than the fourth horizontal groove 44, while the fourth horizontal groove 44 faces the upper surface of the opto-electric hybrid board 2 other than the first horizontal groove 41.

On the other hand, as shown by the solid line in FIG. 6, when the first lateral groove 41 and the fourth lateral groove 44 are arranged at the same position in the front-rear direction, the first lateral groove 41 and the fourth lateral groove 44 communicate with each other. The adhesive 19 filled in the (boundary portion) does not contact either the opto-electric hybrid board 2 or the lid 22.

On the other hand, as shown by the phantom line in FIG. 6, if the first lateral groove 41 and the fourth lateral groove 44 are displaced in the front-rear direction, the adhesive 19 filled in the first lateral groove 41 contacts the lower surface of the lid 22. Then, the adhesive 19 filled in the fourth lateral groove 44 comes into contact with the upper surface of the opto-electric hybrid board 2. Therefore, the contact area of the adhesive 19 with respect to the lid 22 and the opto-electric hybrid board 2 can be increased. As a result, the adhesive force between the lid 22 and the opto-electric hybrid board 2 can be further improved.

Further, when the opto-electric hybrid board 2 is accommodated in the accommodating space 29 and the lid 22 is attached to the main body 21, the second lateral groove 42 is spaced apart from the third lateral groove 43, for example, on the rear side. Be placed. Thereby, the 2nd horizontal groove 42 and the 3rd horizontal groove 43 shift | deviate completely in the front-back direction.
In this case, the second horizontal groove 42 faces the upper surface (the bottom surface of the bottom wall 23) other than the third horizontal groove 43 in the main body 21, while the third horizontal groove 43 is other than the second horizontal groove 42 in the opto-electric hybrid board 2. Facing the underside of the.

On the other hand, as shown by the solid line in FIG. 6, when the second lateral groove 42 and the third lateral groove 43 are arranged at the same position in the front-rear direction, the second lateral groove 42 and the third lateral groove 43 communicate with each other. The adhesive 19 filled in the (boundary portion) does not contact either the opto-electric hybrid board 2 or the lid 22.

On the other hand, as shown by phantom lines in FIG. 6, if the second lateral groove 42 and the third lateral groove 43 are displaced in the front-rear direction, the adhesive 19 filled in the second lateral groove 42 contacts the above-described upper surface of the main body 21. Then, the adhesive 19 filled in the third lateral groove 43 comes into contact with the lower surface of the opto-electric hybrid board 2. Therefore, the contact area of the adhesive 19 with respect to the main body 21 and the opto-electric hybrid board 2 can be increased. As a result, the adhesive force between the main body 21 and the opto-electric hybrid board 2 can be further improved.

As shown in FIG. 4, in the first embodiment, the opening 70 is formed by all of the front and rear directions of the second connecting surface 28. However, as shown by the phantom lines in FIGS. 2A to 2C and the solid line in FIG. 7, the opening 70 can also be formed by setting a part of the second connecting surface 28 in the front-rear direction as an opening forming surface. .

Each of the two lid protrusions 30 includes a lid recess 34 that is recessed inward in the center in the rearward direction. The lid recess 34 is recessed inward from the third connecting surface 33 in a substantially rectangular shape in plan view, and is cut out along the thickness direction. On the other hand, when the lid 22 is attached to the main body 21, portions of the third coupling surface 33 that are located on both the front and rear sides of the lid recess 34 are in contact with the second coupling surface 28. As a result, when the lid 22 is attached to the main body 21, the front-rear direction central portion of the second connecting surface 28 and the inner surface of the lid concave portion 34 form a central upper opening 72 (opening portion 70).

Further, the opening 70 can be formed by the second connecting surface 28 of the main body recess 25 without providing the lid protrusion 30 on the lid 22. In this case, both end surfaces in the width direction of the lid 22 have a substantially linear shape in plan view.

Further, the mounting portion 13 can be accommodated in the accommodating space 29 without providing the substrate protruding portion 14 in the mounting portion 13. In this case, both end surfaces in the width direction of the mounting portion 13 have a substantially linear shape in plan view.

Preferably, the mounting portion 13 is provided with a substrate protruding portion 14. The first front fitting surface 15 and the first rear fitting surface 16 of the board projecting portion 14 are fitted with the second front fitting surface 26 and the second rear fitting surface 27 of the main body recessed portion 25, and the mounting portion 13. Positioning in the front-rear direction with respect to the main body 21 can be performed.

2A to 2D, the two substrate protrusions 14 can include a substrate recess 35 having the same shape as the lid recess 34. As shown in FIG. In this case, when the opto-electric hybrid board 2 is accommodated in the accommodating space 29, the center part in the front-rear direction of the second connecting surface 28 and the inner surface of the substrate recess 35 are the lower center opening 71 (opening part 70). Form.

As shown by the arrow in FIG. 5A, in the first embodiment, the adhesive 19 is injected into the opening 70 on the left side. However, the present invention is not limited to this. For example, the adhesive 19 can be injected into the openings 70 on both the left and right sides.

Preferably, the adhesive 19 is injected into one of the two openings 70. According to this, the other opening 70 is used as an escape path (escape passage) for air remaining in the central lateral groove 40, or used as a confirmation window for confirming the tip of the adhesive 19 that has passed through the central lateral groove 40. Can do.

As shown in FIGS. 3 and 4, in the first embodiment, two openings 70 are provided. However, the number is not limited. Although not shown, the opening 70 may be either one on the left or right.

Preferably, a plurality (two) of openings 70 are provided. According to this, one can be used as an injection opening, and the other (the other) can be used as an air escape path or a confirmation window.

Also, as shown by the phantom line in FIG. 7, the first side opening 77 can be provided in the extension wall 24.

In this case, when the lid 22 is attached to the main body 21, all of the second connection surfaces 28 of the main body 21 and all of the third connection surfaces 33 of the lid 22 are in complete contact. Accordingly, the central upper opening 72 (see FIG. 5) based on the contact between the main body 21 and the lid 22 is not formed.

And the 1st side opening part 77 is an opening formed only by the main body 21, Comprising: Specifically, it is a through-hole which penetrates the thickness direction (width direction of the main body 21) of the extension wall 24. As shown in FIG. The first side opening 77 communicates the outside with the opening 70.

As shown in FIG. 27A, the two first side openings 77 on the left and right sides may have different positions in the vertical direction, or the same as shown in FIG. 27B (reference numeral 28). May be in position.

If the two first side openings 77 are in the same position, the body 21 can be easily molded.

On the other hand, as shown in FIG. 27A, if the vertical positions of the two first side openings 77 are different, in the second step, the adhesive 19 is injected from the first side openings 77 at a high position, and then After flowing in while filling the central lateral groove 40, the adhesive 19 is allowed to overflow (leak) from the first side opening 77 at a lower position at the front end of the adhesive 19, and it can be confirmed. . Therefore, the filling of the adhesive 19 into the central lateral groove 40 can be easily confirmed.

In the first embodiment, the electric circuit board 4 includes the metal support layer 6, the base insulating layer 7, the conductor layer 8, and the cover insulating layer 9 in order in the downward direction. However, they can also be provided in order toward the upper side.

Further, in the first embodiment, the optical waveguide 5 includes the under cladding layer 10, the core layer 11, and the over cladding layer 12 in order toward the upper side. For example, although not illustrated, they are directed downward. Can also be prepared in order.

In the first embodiment, the opto-electric hybrid board 2 includes the electric circuit board 4 and the optical waveguide 5 in order toward the upper side. For example, although not illustrated, the opto-electric hybrid board 2 includes them in order toward the lower side. You can also.

(Second Embodiment)
Next, a second embodiment will be described. In the second embodiment, the same members and steps as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. Moreover, 2nd Embodiment can show | play the effect similar to 1st Embodiment, unless it mentions specially.

As shown in FIGS. 8A to 8D and FIG. 9, the connector kit 1 further includes a rear longitudinal groove 50 (an example of a first direction other side groove disposed on the other side in the first direction). The rear longitudinal groove 50 is provided in the opto-electric hybrid board 2, the main body 21, and / or the lid 22, for example. Specifically, the rear vertical groove 50 includes, for example, a first rear vertical groove 51 and a second rear vertical groove 52 provided in the opto-electric hybrid board 2, a third rear vertical groove 53 provided in the main body 21, and a lid. 22 is provided with at least one of the fourth rear longitudinal grooves 54 provided in FIG.

Next, the rear longitudinal groove 50 is an example including all (four) of the first rear longitudinal groove 51, the second rear longitudinal groove 52, the third rear longitudinal groove 53, and the fourth rear longitudinal groove 54. explain.

The first rear longitudinal groove 51, the second rear longitudinal groove 52, the third rear longitudinal groove 53, and the fourth rear longitudinal groove 54 all have a shape extending in the front-rear direction.

Hereinafter, the first rear vertical groove 51, the second rear vertical groove 52, the third rear vertical groove 53, and the fourth rear vertical groove 54 will be described in order. In addition, about the 2nd back vertical groove 52, the 3rd back vertical groove 53, and the 4th back vertical groove 54, the description about the structure etc. similar to the 1st back vertical groove 51 is abbreviate | omitted.

8B, FIG. 9 and FIG. 10, the first rear longitudinal groove 51 is provided on the upper surface of the opto-electric hybrid board 2. Specifically, the first rear longitudinal groove 51 is provided on the upper surface of the optical waveguide 5 on the mounting portion 13 and immediately behind it. The first rear longitudinal groove 51 has a substantially straight line shape in plan view extending rearward from the central portion of the mounting portion 13. The front end of the first rear longitudinal groove 51 communicates with the first lateral groove 41. On the other hand, the rear end portion of the first rear longitudinal groove 51 is disposed on the rear side from the rear end surface of the lid 22. The first rear longitudinal groove 51 is parallel to the core layer 11 in plan view. The thickness (depth) of the first rear longitudinal groove 51 is the same as that of the first lateral groove 41.

As shown in FIGS. 8C, 9, and 10, the second rear vertical groove 52 is provided on the lower surface of the opto-electric hybrid board 2. The second rear longitudinal groove 52 is provided on the lower surface of the optical waveguide 5 on the mounting portion 13 and immediately behind it. The second rear longitudinal groove 52 has a substantially linear shape in plan view extending rearward from the central portion of the mounting portion 13. The tip of the second rear vertical groove 52 communicates with the second horizontal groove 42. On the other hand, the rear end portion of the second rear longitudinal groove 52 is disposed on the rear side from the rear end surface of the main body 21. The second rear longitudinal groove 52 is parallel to the core layer 11 and the wiring 90 in plan view. In short, the second rear vertical groove 52 is arranged and formed in plane symmetry with respect to a virtual plane along the vertical center of the opto-electric hybrid board 2.

8D, FIG. 9 and FIG. 10, the third rear longitudinal groove 53 is provided in the main body 21. As shown in FIG. Specifically, the third rear longitudinal groove 53 is provided on the bottom surface of the bottom wall 23. Specifically, the third rear longitudinal groove 53 has a substantially linear shape in plan view extending rearward from the center portion of the bottom wall 23. The tip of the third rear longitudinal groove 53 communicates with the third lateral groove 43. On the other hand, the rear end edge of the third rear vertical groove 53 is exposed from the rear end surface of the bottom wall 23. The third rear longitudinal groove 53 is parallel to the core layer 11 in plan view when the opto-electric hybrid board 2 is accommodated in the accommodation space 29. The cross-sectional shape, depth, and width of the third rear longitudinal groove 53 are the same as those of the first rear longitudinal groove 51.

As shown in FIGS. 8A, 9 and 10, the fourth rear longitudinal groove 54 is provided on the lower surface of the lid 22. Specifically, the fourth rear longitudinal groove 54 has a substantially linear shape in plan view extending from the center of the lid 22 to the rear side. The rear end portion of the fourth rear longitudinal groove 54 is exposed on the rear end surface of the lid 22. The tip end portion of the fourth rear vertical groove 54 communicates with the fourth horizontal groove 44. The cross-sectional shape, depth, and width of the fourth rear longitudinal groove 54 are the same as those of the first rear longitudinal groove 51.

As shown in FIGS. 9 and 10, the first rear longitudinal groove 51, the second rear longitudinal groove 52, the third rear longitudinal groove 53 and the fourth rear longitudinal groove 54 are accommodated in the accommodation space 29 by the opto-electric hybrid board 2. And when the lid 22 is attached to the main body 21, it completely overlaps in the width direction.

On the other hand, as shown in FIG. 10, the rear end portion of the first rear longitudinal groove 51 is exposed upward from the lid 22. The rear end portion of the second rear longitudinal groove 52 is exposed downward from the main body 21.

In the second embodiment, the adhesive 19 flows into the rear longitudinal groove 50 through the opening 70 and the central lateral groove 40 in the second step. Specifically, the adhesive 19 reaches the front end of the rear longitudinal groove 50 from the center in the width direction of the central lateral groove 40, and then the adhesive 19 proceeds toward the rear side while filling the rear longitudinal groove 50. .

Thereafter, even if excess adhesive 19 overflows (runs away) from the rear end edges of the fourth rear longitudinal groove 54 and the first rear longitudinal groove 51, the tip surfaces of the opto-electric hybrid board 2 and the lid 22 are different from each other. On the other hand, since the rear end portion of the lid 22 is not used for the above-described connection, such overflow (escape) does not cover (contaminate) the front end surface of the optical waveguide 5.

In addition, even if excess adhesive 19 overflows (runs away) from the rear end edges of the second rear vertical groove 52 and the third rear vertical groove 53, the tip surfaces of the opto-electric hybrid board 2 and the main body 21 are different from each other. On the other hand, since the rear end portion of the main body 21 is not used for the connection described above, such overflow (escape) does not cover (contaminate) the front end surface of the optical waveguide 5.

According to the second embodiment, an excessive amount of adhesive 19 exceeding the amount (necessary amount) necessary for bonding the connector 3 and the opto-electric hybrid board 2 is injected into the opening 70, the central lateral groove 40 and the rear longitudinal groove 50. However, the overflow of the excessive adhesive 19 is allowed. Therefore, the required amount can be filled in the rear longitudinal groove 50. As a result, the connector 3 and the opto-electric hybrid board 2 can be firmly bonded.

(Modification)
Next, a modification of the second embodiment will be described. In the following modifications, members and processes similar to those of the second embodiment described above are denoted by the same reference numerals, and detailed description thereof is omitted. Moreover, each modification can be combined suitably. Furthermore, each modification can have the same effects as those of the second embodiment, unless otherwise specified.

As shown in FIGS. 8A to 8D, in the connector kit 1 according to the second embodiment, the rear longitudinal groove 50 includes the first rear longitudinal groove 51, the second rear longitudinal groove 52, the third rear longitudinal groove 53, and the fourth rear longitudinal groove. A longitudinal groove 54 is provided. However, the rear longitudinal groove 50 is not limited to this. For example, from the group consisting of the first rear longitudinal groove 51, the second rear longitudinal groove 52, the third rear longitudinal groove 53, and the fourth rear longitudinal groove 54, any three, any two, and further, Or one can be selected.

In addition, each of the rear longitudinal grooves 50, that is, the first rear longitudinal groove 51, the second rear longitudinal groove 52, the third rear longitudinal groove 53, and the fourth rear longitudinal groove 54 is one, but the number thereof is However, the present invention is not limited to this, and a plurality of them may be used.

Further, in the second embodiment, as shown in FIG. 9, in the cross section along the thickness direction and the width direction, the four rear longitudinal grooves 50 are arranged at the same position in the width direction.

However, as shown by the phantom lines in FIG. 9, for example, it can be partially or completely deviated.

For example, when the opto-electric hybrid board 2 is accommodated in the accommodating space 29 and the lid 22 is attached to the main body 21, the fourth rear vertical groove 54 is spaced to the right side with respect to the first rear vertical groove 51, for example. Are arranged apart from each other. Thereby, the 1st back vertical groove 51 and the 4th back vertical groove 54 shift in the left-right (width) direction. In this case, the first rear vertical groove 51 faces the lower surface of the lid 22 other than the fourth rear vertical groove 54, while the fourth rear vertical groove 54 is the first rear vertical groove 51 in the opto-electric hybrid board 2. Facing the top surface other than.

On the other hand, as shown by the solid line in FIG. 9, when the first rear vertical groove 51 and the fourth rear vertical groove 54 are arranged at the same position in the width direction, the first rear vertical groove 51 and the fourth rear vertical groove 54. The groove 54 communicates.
The adhesive 19 filled in the (boundary portion) does not contact either the opto-electric hybrid board 2 or the lid 22.

On the other hand, as shown by phantom lines in FIG. 9, if the first rear longitudinal groove 51 and the fourth rear longitudinal groove 54 are displaced in the width direction, the adhesive 19 filled in the first rear longitudinal groove 51 is covered with the lid 22. The adhesive 19 that contacts the above-described lower surface and fills the fourth rear longitudinal groove 54 contacts the above-described upper surface of the opto-electric hybrid board 2. Therefore, the contact area of the adhesive 19 with respect to the lid 22 and the opto-electric hybrid board 2 can be increased. As a result, the adhesive force between the lid 22 and the opto-electric hybrid board 2 can be further improved.

Further, when the opto-electric hybrid board 2 is accommodated in the accommodating space 29 and the lid 22 is attached to the main body 21, the second rear vertical groove 52 is spaced to the left with respect to the third rear vertical groove 53, for example. Are arranged apart from each other. As a result, the second rear vertical groove 52 and the third rear vertical groove 53 are completely displaced in the left-right (width) direction. In this case, the second rear vertical groove 52 faces the upper surface (the bottom surface of the bottom wall 23) other than the third rear vertical groove 53 in the main body 21, while the third rear vertical groove 53 is the opto-electric hybrid board 2. It faces the lower surface other than the second rear longitudinal groove 52 in FIG.

On the other hand, as shown by the solid line in FIG. 9, when the second rear vertical groove 52 and the third rear vertical groove 53 are arranged at the same position in the front-rear direction, the second rear vertical groove 52 and the third rear vertical groove The groove 53 communicates. The adhesive 19 filled in the (boundary portion) does not contact either the opto-electric hybrid board 2 or the lid 22.

On the other hand, as shown by the phantom lines in FIG. 9, if the second rear longitudinal groove 52 and the third rear longitudinal groove 53 are displaced in the front-rear direction, the adhesive 19 filled in the second rear longitudinal groove 52 is removed from the main body 21. The adhesive 19 that is in contact with the above-described upper surface and is filled in the third rear longitudinal groove 53 contacts the above-described lower surface of the opto-electric hybrid board 2. Therefore, the contact area of the adhesive 19 with respect to the main body 21 and the opto-electric hybrid board 2 can be increased. As a result, the adhesive force between the main body 21 and the opto-electric hybrid board 2 can be further improved.

As shown by the solid line in FIG. 8D, in the second step, the third rear longitudinal groove 53 is provided in the bottom wall 23. However, as shown by the phantom line in FIG. 8D and the solid line in FIG.

The third rear longitudinal groove 53 is provided on the inner surface of each of the two extending walls 24.

Further, the third rear vertical groove 53 is provided on the extending wall 24, and the thickness (height) of the third rear vertical groove 53 is greater than or equal to the thickness of the mounting portion 13 (the opto-electric hybrid board 2). In some cases, in the first step, the main body 21 and the lid 22 can be integrated into the connector 3. In this case, the left and right ends of the mounting portion 13 are inserted from the rear side into the third rear vertical groove 53 toward the front side.

Preferably, the connector 3 is constituted by the main body 21 and the lid 22 as separate bodies. According to this, since the mounting portion 13 can be pressed by the lid 22, the positional deviation of the mounting portion 13 with respect to the main body 21 is suppressed, and the opto-electric hybrid board 2 is attached to the connector 3 with high accuracy. Can do.

In the second embodiment, the connector 3 includes a central lateral groove 40.

However, as shown in FIGS. 12A to 14, the connector 3 can include a third opening 73 instead of the central lateral groove 40. The third opening 73 communicates with the distal end portion of the rear longitudinal groove 50 when the opto-electric hybrid board 2 is accommodated in the accommodation space 29 and the lid 22 is attached to the main body 21. The third opening 73 includes a fourth opening 74 and a fifth opening 75.

The fourth opening 74 is provided in the opto-electric hybrid board 2. The fourth opening 74 is a through-hole penetrating the opto-electric hybrid board 2 in the thickness direction at the center of the mounting part 13 of the opto-electric hybrid board 2. The fourth opening 74 is spaced inward in the width direction with respect to both end edges in the width direction of the mounting portion 13. The fourth opening 74 has a substantially rectangular shape in plan view. The fourth opening 74 is continuous with the distal ends of the first rear longitudinal groove 51 and the second rear longitudinal groove 52.

The fifth opening 75 is provided in the lid 22. The fifth opening 75 is a through-hole penetrating the lid 22 in the thickness direction at the center of the lid 22. The fifth opening 75 is spaced inward in the width direction with respect to both edges in the width direction of the lid 22. The fifth opening 75 includes the fourth opening 74 in plan view when the opto-electric hybrid board 2 is accommodated in the accommodation space 29 and the lid 22 is attached to the main body 21. With a large rectangular shape in plan view.
The fifth opening 75 is continuous with the tip of the fourth rear longitudinal groove 54.

The third opening 73 communicates with the rear longitudinal groove 50 when the opto-electric hybrid board 2 is accommodated in the accommodating space 29 and the lid 22 is attached to the main body 21.

In this modification, the adhesive 19 is injected into the third opening 73 in the second step. Then, the adhesive 19 flows into the rear longitudinal groove 50 from the third opening 73.

In addition, the shape of the 3rd opening part 73 is not specifically limited, For example, planar view substantially circular shape may be sufficient.

In the above modification, as shown in FIGS. 12A to 14, the third opening 73 is provided in the lid 22. However, although not shown, for example, it may be provided in the bottom wall 23. A third opening 73 (not shown in FIGS. 12A to 14) provided in the bottom wall 23 is a seventh opening. The seventh opening is included in the third opening 73 together with the fourth opening 74 of the opto-electric hybrid board 2. That is, the third opening 73 includes a seventh opening (not shown) and a fourth opening 74.

The seventh opening is a through hole that penetrates the bottom wall 23 in the thickness direction at the center of the bottom wall 23. The seventh opening includes the fourth opening 74 in plan view when the opto-electric hybrid board 2 is accommodated in the accommodation space 29 and the lid 22 is attached to the main body 21. On the other hand, it has a large rectangular shape in plan view. The seventh opening is continuous with the tip of the third rear longitudinal groove 53 shown in FIG. 12D. The seventh opening exposes the tip of the second rear longitudinal groove 52 in the opto-electric hybrid board 2 to the lower side.

On the other hand, the lid 22 is not provided with the third opening 73. Therefore, the lid 22 closes the opto-electric hybrid board 2 from above.

In this modification, the adhesive 19 is connected to the third rear vertical groove 53 of the bottom wall 23, the first rear vertical groove 51 and the second rear vertical groove 52 of the opto-electric hybrid board 2 through the seventh opening. , And flows into the fourth rear longitudinal groove 54 of the lid 22.

In addition, the 3rd opening part 73 does not include the 4th opening part 74, but can also consist only of a 7th opening part. In this case, the adhesive 19 flows into the third rear vertical groove 53 of the bottom wall 23 and the first rear vertical groove 51 of the opto-electric hybrid board 2 through the seventh opening.

Further, only one of the first rear longitudinal groove 51 and the third rear longitudinal groove 53 is provided, and the adhesive 19 can also flow into the one through the seventh opening.

(Third embodiment)
Next, a third embodiment will be described. In the third embodiment, the same members and steps as those in the first and second embodiments described above are denoted by the same reference numerals, and detailed description thereof is omitted. In addition, the third embodiment can achieve the same functions and effects as those of the first and second embodiments, unless otherwise specified.

In FIGS. 15A to 15D, the core layer 11 is omitted to clearly show the arrangement and shape of the central lateral groove 40, the front longitudinal groove 60, and the front lateral groove 80 (described later).

15A to 15D, the connector kit 1 includes a front longitudinal groove 60 (an example of a first direction one-side groove disposed on one side in the first direction) instead of the rear longitudinal groove 50.

The front longitudinal groove 60 is provided in the opto-electric hybrid board 2, the main body 21 and / or the lid 22. The front vertical groove 60 includes a first front vertical groove 61 and a second front vertical groove 62 provided in the opto-electric hybrid board 2, a third front vertical groove 63 provided in the main body 21, and a fourth front end provided in the lid 22. At least one of the longitudinal grooves 64 is provided.

Next, the front vertical groove 60 includes all (four) of the first front vertical groove 61, the second front vertical groove 62, the third front vertical groove 63, and the fourth front vertical groove 64. explain.

The first front vertical groove 61, the second front vertical groove 62, the third front vertical groove 63, and the fourth front vertical groove 64 all have a shape extending in the front-rear direction.

Hereinafter, the first front vertical groove 61, the second front vertical groove 62, the third front vertical groove 63, and the fourth front vertical groove 64 will be described in order. In addition, about the structure etc. which are the same as the 1st front vertical groove 61 about the 2nd front vertical groove 62, the 3rd front vertical groove 63, and the 4th front vertical groove 64, the description is abbreviate | omitted.

The first leading vertical groove 61 is provided on the upper surface of the opto-electric hybrid board 2. The rear end portion of the first front longitudinal groove 61 is located at the center of the mounting portion 13. As a result, the rear end portion of the first leading vertical groove 61 communicates with the first horizontal groove 41. On the other hand, the distal end portion of the first leading longitudinal groove 61 is the distal end portion of the mounting portion 13 and is located immediately before the distal end edge. That is, the front end portion of the first front longitudinal groove 61 is spaced from the front end surface of the mounting portion 13 in the front-rear direction. In short, the first leading vertical groove 61 extends from the central portion of the mounting portion 13 to a position just before the tip edge, and does not reach the tip surface of the mounting portion 13. The cross-sectional shape of the first front longitudinal groove 61 is the same as that of the first lateral groove 41.

The second leading vertical groove 62 is provided on the lower surface of the opto-electric hybrid board 2. The rear end portion of the second leading vertical groove 62 is located at the center of the mounting portion 13. As a result, the rear end portion of the second leading vertical groove 62 communicates with the second horizontal groove 42. On the other hand, the distal end portion of the second leading longitudinal groove 62 is the distal end portion of the mounting portion 13 and is located immediately before the distal end edge. That is, the tip of the second leading vertical groove 62 is spaced from the tip of the mounting portion 13 in the front-rear direction. The second leading vertical groove 62 extends from the central portion of the mounting portion 13 to a position just before the tip edge, and does not reach the tip surface of the mounting portion 13. In short, the second leading vertical groove 62 is arranged and formed symmetrically with respect to a virtual plane along the vertical center of the opto-electric hybrid board 2.

The third leading vertical groove 63 is provided on the bottom surface of the bottom wall 23. The rear end portion of the third leading vertical groove 63 communicates with the third horizontal groove 43. On the other hand, the distal end portion of the third leading vertical groove 63 is disposed at a distance behind the distal end edge of the mounting portion 13 when the opto-electric hybrid board 2 is accommodated in the accommodating space 29. In short, the third leading vertical groove 63 has a shape overlapping with the second leading vertical groove 62 when the opto-electric hybrid board 2 is accommodated in the accommodating space 29 in plan view. The cross-sectional shape of the third leading vertical groove 63 is the same as that of the first leading vertical groove 61.

The fourth leading vertical groove 64 is provided on the lower surface of the lid 22. The rear end portion of the fourth front vertical groove 64 communicates with the fourth horizontal groove 44. On the other hand, the distal end portion of the fourth leading vertical groove 64 is arranged at a distance behind the distal end edge of the mounting portion 13 when the opto-electric hybrid board 2 and the main body 21 are accommodated in the accommodating space 29. In short, the fourth front vertical groove 64 has a shape overlapping with the third front vertical groove 63 in plan view when the opto-electric hybrid board 2 and the main body 21 are stored in the storage space 29. The cross-sectional shape of the fourth leading vertical groove 64 is the same as that of the second leading vertical groove 62.

In the third embodiment, the adhesive 19 flows into the front vertical groove 60 through the opening 70 and the central horizontal groove 40 in the second step. Specifically, the adhesive 19 reaches from the center in the width direction of the central lateral groove 40 to the tip of the front vertical groove 60, whereby the adhesive 19 is filled in the front vertical groove 60.

However, the front end portions of the first front vertical groove 61 and the fourth front vertical groove 64 and the front end surface of the mounting portion 13, the front end portions of the second front vertical groove 62 and the third front vertical groove 63, and the front end surface of the mounting portion 13. Are spaced apart in the front-rear direction, in which the upper surface of the opto-electric hybrid board 2 and the lower surface of the lid 22 are in contact, and the lower face and the main body of the opto-electric hybrid board 2 are in contact with each other. 21 is in contact with the upper surface. Therefore, the adhesive 19 is restricted from contaminating the tip surface of the optical waveguide 5.

Further, the front longitudinal groove 60 can overlap the front end surface of the opto-electric hybrid board 2 when the opto-electric hybrid board 2 is accommodated in the accommodation space 29 and the lid 22 is attached to the main body 21. For example, the front ends of the second front vertical groove 62 and the third front vertical groove 63 can be exposed from the front end surface of the opto-electric hybrid board 2. Moreover, the front end edges of the first front vertical groove 61 and the fourth front vertical groove 64 may be positioned on the front side of the front end surface of the opto-electric hybrid board 2.

Preferably, the front end portion of the front vertical groove 60 is located behind the front end surface of the opto-electric hybrid board 2. Thereby, the contamination to the front end surface of the optical waveguide 5 by the adhesive 19 can be prevented.

Further, the above-mentioned contamination can be further prevented by the close contact of the lid 22, the opto-electric hybrid board 2 and the main body 21 based on the pressing of the lid 22 against the opto-electric hybrid board 2.

In the second step, the adhesive 19 can be injected into the opening 70 without pressing the opto-electric hybrid board 2 with the lid 22.

Preferably, the opto-electric hybrid board 2 is pressed by the lid 22. As a result, the lid 22, the opto-electric hybrid board 2 and the main body 21 are brought into close contact with each other, and the above-described overflow of the adhesive 19 can be further prevented.

(Modification)
Next, a modification of the third embodiment will be described. In the following modifications, members and steps similar to those of the third embodiment described above are denoted by the same reference numerals, and detailed description thereof is omitted. Moreover, each modification can be combined suitably. Further, each modification can achieve the same operational effects as those of the third embodiment, unless otherwise specified.

As shown in FIGS. 15A to 15D, in the connector kit 1 according to the third embodiment, the tip longitudinal groove 60 includes a first tip longitudinal groove 61, a second tip longitudinal groove 62, a third tip longitudinal groove 63, and a fourth tip. A longitudinal groove 64 is provided. However, the front longitudinal groove 60 is not limited to this. For example, from the group consisting of the first leading longitudinal groove 61, the second leading longitudinal groove 62, the third leading longitudinal groove 63, and the fourth leading longitudinal groove 64, any three, any two, and further, Or one can be selected.

In addition, each of the front vertical grooves 60, that is, the first front vertical groove 61, the second front vertical groove 62, the third front vertical groove 63, and the fourth front vertical groove 64 is one, but the number thereof is However, the present invention is not limited to this, and a plurality of them may be used.

In the cross section along the thickness direction and the width direction, the four leading longitudinal grooves 60 are arranged at the same position in the width direction, but may be partially or completely displaced, for example.

For example, as shown in FIG. 9, when the opto-electric hybrid board 2 is accommodated in the accommodating space 29 and the lid 22 is attached to the main body 21, the fourth leading vertical groove 64 is, for example, the first leading vertical groove. 61 is arranged on the right side with an interval. Thereby, the first leading vertical groove 61 and the fourth leading vertical groove 64 are shifted in the left-right (width) direction. In this case, the first leading vertical groove 61 faces the lower surface of the lid 22 other than the fourth leading vertical groove 64, while the fourth leading vertical groove 64 is the first leading vertical groove 61 in the opto-electric hybrid board 2. Facing the top surface other than.

On the other hand, when the first front vertical groove 61 and the fourth front vertical groove 64 are arranged at the same position in the width direction, the first front vertical groove 61 and the fourth front vertical groove 64 communicate with each other. The adhesive 19 filled in the (boundary portion) does not contact either the opto-electric hybrid board 2 or the lid 22.

On the other hand, if the first front vertical groove 61 and the fourth front vertical groove 64 are displaced in the width direction, the adhesive 19 filled in the first front vertical groove 61 comes into contact with the lower surface of the lid 22, and the fourth The adhesive 19 filling the front longitudinal groove 64 contacts the above-described upper surface of the opto-electric hybrid board 2. Therefore, the contact area of the adhesive 19 with respect to the lid 22 and the opto-electric hybrid board 2 can be increased. As a result, the adhesive force between the lid 22 and the opto-electric hybrid board 2 can be further improved.

Further, when the opto-electric hybrid board 2 is accommodated in the accommodating space 29 and the lid 22 is attached to the main body 21, the second leading vertical groove 62 is spaced to the left side with respect to the third leading vertical groove 63, for example. Are arranged apart from each other. As a result, the second leading vertical groove 62 and the third leading vertical groove 63 are completely displaced in the left-right (width) direction. In this case, the second leading vertical groove 62 faces the upper surface (the bottom surface of the bottom wall 23) other than the third leading vertical groove 63 in the main body 21, while the third leading vertical groove 63 is the opto-electric hybrid board 2. It faces the lower surface other than the second leading vertical groove 62 in FIG.

On the other hand, when the second front vertical groove 62 and the third front vertical groove 63 are arranged at the same position in the front-rear direction, the second front vertical groove 62 and the third front vertical groove 63 communicate with each other. The adhesive 19 filled in the (boundary portion) does not contact either the opto-electric hybrid board 2 or the lid 22.

On the other hand, if the second front vertical groove 62 and the third front vertical groove 63 are displaced in the front-rear direction, the adhesive 19 filled in the second front vertical groove 62 comes into contact with the upper surface of the main body 21, and the third The adhesive 19 filled in the front vertical groove 63 contacts the lower surface of the opto-electric hybrid board 2. Therefore, the contact area of the adhesive 19 with respect to the main body 21 and the opto-electric hybrid board 2 can be increased. As a result, the adhesive force between the main body 21 and the opto-electric hybrid board 2 can be further improved.

As shown by the thick phantom lines in FIGS. 15A to 15D and the solid line in FIG. 15E, a front horizontal groove 80 communicating with the front vertical groove 60 may be provided at the tip of the front vertical groove 60.

The front lateral groove 80 is a groove along the width direction and has the same cross-sectional shape as the central lateral groove 40. The front horizontal groove 80 is provided at the tip of the front vertical groove 60. The front horizontal groove 80 is a first front horizontal groove 81 provided on the upper surface of the opto-electric hybrid board 2, a second front horizontal groove 82 provided on the lower face of the opto-electric hybrid board 2, and a first front groove provided on the upper surface of the bottom wall 23 of the main body 21. At least one of the third front horizontal groove 83 and the fourth front horizontal groove 84 provided on the lower surface of the lid 22 is provided.

Furthermore, as shown by the phantom lines in FIG. 15E, the upper and lower grooves 85 can be provided on the inner surface of the extension wall 24 so as to be continuous with the lower end portion of the third front lateral groove 83.

The vertical groove 85 extends in the vertical direction and is exposed on the upper surface of the extension wall 24 as shown in FIG.

According to this modification, the adhesive 19 that reaches the tip of the front vertical groove 60 flows into the front horizontal groove 80. Thereafter, the front lateral groove 80 can be advanced (raised) upward.

17A to 17C, a third opening 73 may be provided instead of the central lateral groove 40. 17A to 17C, the core layer 11 is omitted to clearly show the arrangement and shape of the central lateral groove 40 and the rear longitudinal groove 50.

Furthermore, as indicated by the thin imaginary lines in FIGS. 15A to 15C, a sixth opening 76 can be provided at the tip of the front longitudinal groove 60.

The sixth opening 76 is provided in the lid 22 and / or the opto-electric hybrid board 2. For example, the sixth opening 76 includes at least one of a front lower opening 66 included in the opto-electric hybrid board 2 and a front upper opening 67 provided in the lid 22.

The lower opening 66 is provided at the tip of the opto-electric hybrid board 2. The front lower opening 66 is a through hole that penetrates the thickness direction of the opto-electric hybrid board 2 and has a substantially rectangular shape in plan view. The front lower opening 66 communicates with the distal ends of the second front vertical groove 62 and the third front vertical groove 63.

The upper opening 67 is provided at the tip of the lid 22. The top opening 67 is a through hole that penetrates the lid 22 in the thickness direction and has a substantially rectangular shape in plan view. The top opening 67 communicates with the tip of the fourth front longitudinal groove 64.

Also, as indicated by the phantom lines in FIGS. 17A to 17C, both the third opening 73 and the sixth opening 76 can be provided.

Another modification will be described. Hereinafter, members and processes similar to those in the first to third embodiments described above and the modifications thereof will be denoted by the same reference numerals, and detailed description thereof will be omitted. Moreover, each modification can be combined suitably. Furthermore, the following modifications can also have the same effects as the first to third embodiments and their modifications, unless otherwise specified.

18A and 18C, the central transverse groove 40 can be bent.

As shown in FIG. 18A, the fourth horizontal groove 44 (the central horizontal groove 40) is included in the lid 22, for example, and has a substantially L shape in plan view in which a bending point is located on the front side with respect to the lid protrusion 30. Have. In this case, the central lateral groove 40 has a bending point on the rear side of the front end surface of the opto-electric hybrid board 2 when the opto-electric hybrid board 2 is accommodated in the accommodation space 29 and the lid 22 is attached to the main body 21. Since the interval is separated, the same action as the fourth front vertical groove 64 (front vertical groove 60) shown in FIG. 15A and exemplified in the third embodiment can be achieved.

Further, as shown in FIG. 18C, the bending point of the central lateral groove 40 can be located on the rear side with respect to the substrate protrusion 14.

Furthermore, as shown in FIG. 18D, when the bending point of the central lateral groove 40 is projected in the width direction, it overlaps with the main body concave portion 25 and the rear end portion can be exposed on the rear end surface of the main body 21. Therefore, the central lateral groove 40 can exhibit the same action as the third rear longitudinal groove 53 (rear longitudinal groove 50) illustrated in FIG. 8D and exemplified in the second embodiment.

As shown in FIG. 18B, the longitudinal groove 55 can also be formed by continuing the longitudinal longitudinal groove 50 and the longitudinal longitudinal groove 60 in the longitudinal direction.

The vertical groove 55 is the tip of the opto-electric hybrid board 2 when the opto-electric hybrid board 2 is housed in the housing space 29 and the lid 22 is attached to the main body 21. The rear end of the connector 3 is positioned immediately after the rear end surface of the connector 3 (or the rear end edge of the mounting portion 13).

As shown in FIG. 19A, the front vertical groove 60 (the fourth front vertical groove 64, see FIG. 15A) may be formed wide.

As shown in FIG. 19B, the rear vertical groove 50 (the first rear vertical groove 51, see FIG. 8B) may be formed wide.

19C and 19D, the central lateral groove 40 (second lateral groove 42, see FIG. 18A) can have a plurality of bending points. The central lateral groove 40 has a plurality of (four) bending points and has a meandering shape in plan view.

As shown in FIG. 19C, the bending point is located at a position overlapping with the substrate protrusion 14 when projected in the width direction, and at a position on the front side thereof.

On the other hand, as shown in FIG. 19C, the bending point is located at a position overlapping with the main body concave portion 25 when projected in the width direction, and at a position on the rear side thereof.

(Concrete example)
You may combine how from any of each above-mentioned embodiment and each modification.

The preferred specific example is shown below.

(Specific example 1)
As shown in FIGS. 20A to 23C, the connector kit 1 includes a vertical groove 55, a third horizontal groove 43, a third rear vertical groove 53, and a fourth horizontal groove 44.

The vertical groove 55 is provided on the upper surface of the opto-electric hybrid board 2. Note that the lower surface of the opto-electric hybrid board 2 does not have a groove.

The third horizontal groove 43 and the third rear vertical groove 53 are provided on the bottom wall 23.

The fourth lateral groove 44 is provided in the lid 22.

And in this specific example 1, when the opto-electric hybrid board 2 is accommodated in the accommodating space 29 and the lid 22 is attached to the main body 21 in the first step, each of the left and right ends of the third lateral groove 43 is While communicating with each of the two openings 70, each of the left and right ends of the fourth lateral groove 44 communicates with each of the two openings 70. Further, the front and rear center portion of the vertical groove 55 communicates with the fourth horizontal groove 44. Further, the tip end portion of the third rear vertical groove 53 communicates with the third horizontal groove 43.

In the second step, when the adhesive 19 is injected into the opening 70 on the left side, the inside of each of the fourth lateral grooves 44 and the third lateral grooves 43 starts from the left end portions of the fourth lateral grooves 44 and the third lateral grooves 43. Subsequently, each of the fourth lateral groove 44 and the third lateral groove 43 is filled and passed, and then reaches the right opening 70.

On the other hand, the adhesive 19 filled in the fourth horizontal groove 44 reaches the front-rear direction center of the vertical groove 55, and branches from the front-rear direction center of the vertical groove 55 to the front-rear direction, and vertically It progresses while filling the groove 55 and reaches the front and rear ends of the longitudinal groove 55. In particular, the adhesive 19 is allowed to overflow from the rear end surface of the lid 22 at the rear end portion of the longitudinal groove 55. However, the adhesive 19 does not contaminate the front end surface of the opto-electric hybrid board 2.

On the other hand, the adhesive 19 filled in the third horizontal groove 43 proceeds while filling the third rear vertical groove 53 from the front end portion of the third rear vertical groove 53 to the rear side. It reaches the rear end. At this time, the adhesive 19 is allowed to overflow from the rear end surface of the main body 21 at the rear end portion of the third rear longitudinal groove 53.

Further, as shown by phantom lines in FIGS. 20A, 23A, and 24, the lid 22 may further include two lid recesses 34 and a fifth lateral groove 45.

The fifth horizontal groove 45 is positioned so as to overlap the front end portion of the vertical groove 55 when the opto-electric hybrid board 2 is accommodated in the accommodation space 29 and the lid 22 is attached to the main body 21.

The two lid recesses 34 are continuous with the left and right ends of the fifth lateral groove 45.

In this case, in the first step, when the opto-electric hybrid board 2 is accommodated in the accommodating space 29 and the lid 22 is attached to the main body 21, the leading end of the vertical groove 55 communicates with the fifth horizontal groove 45. . The fifth lateral groove 45 communicates with the outside through the lid recess 34.

In the second step, the adhesive 19 passes through the tip of the vertical groove 55 and reaches the fifth horizontal groove 45. That is, the adhesive 19 completely fills the tip of the vertical groove 55.

Subsequently, the adhesive 19 proceeds to the left and right sides of the fifth lateral groove 45 (so as to branch), and rises while filling the inside of the lid recess 34.

With such a configuration, the adhesive force between the opto-electric hybrid board 2 and the connector 3 is improved while increasing the contact area between the adhesive 19 and the opto-electric hybrid board 2 and the connector 3.

(Specific example 2)
As illustrated in FIG. 22, the specific example 1 illustrates the opto-electric hybrid board 2 as an example of the optical waveguide member. However, in the specific example 2, as illustrated in FIG. 25, an example of the optical waveguide member is illustrated. Does not include the electric circuit board 4 but includes the optical waveguide 5. Preferably, an example of the optical waveguide member includes only the optical waveguide 5.

The optical waveguide 5 and the connector 3 that accommodates the optical waveguide 5 are provided in the optical waveguide connector 88. The optical waveguide connector 88 preferably includes only the optical waveguide 5, the connector 3, and the adhesive 19.

(Specific example 3)
As shown in FIGS. 26A to 28, the connector kit 1 includes a first lateral groove 41, a first rear longitudinal groove 51, a third lateral groove 43, and a third leading longitudinal groove 63. The connector kit 1 also includes a first side opening 77. The connector kit 1 further includes a front lateral groove 80 and an upper and lower groove 85. The lid 22 does not include a groove.

The first horizontal groove 41 and the first rear vertical groove 51 are provided on the upper surface of the opto-electric hybrid board 2. Note that the lower surface of the opto-electric hybrid board 2 does not have a groove.

The third leading vertical groove 63 and the third horizontal groove 43 are provided on the bottom surface of the bottom wall 23 of the main body 21.

The first side opening 77, the third front lateral groove 83, and the upper and lower grooves 85 are provided on the extending wall 24 of the main body 21.

Further, as shown by the phantom line in FIG. 26D and the phantom line in FIG. 27B, the extension wall 24 can be provided with a second side opening 78 in addition to the first side opening 77.

Two second side openings 78 are provided so as to be exposed at the center in the vertical direction of the two vertical grooves 85. The two second side openings 78 overlap when projected in the left-right direction.

And in this specific example 3, when the opto-electric hybrid board 2 is accommodated in the accommodating space 29 and the lid 22 is attached to the main body 21 in the first step, each of the left and right ends of the first lateral groove 41 is While communicating with each of the two openings 70, each of the left and right ends of the third lateral groove 43 communicates with each of the two openings 70. Further, the front end of the first rear vertical groove 51 communicates with the first horizontal groove 41. The rear end portion of the third leading vertical groove 63 communicates with the third horizontal groove 43.
Further, the tip of the third leading vertical groove 63 communicates with the third leading horizontal groove 83. The third front lateral groove 83 communicates with the outside at its upper end. Note that the opening 70 communicates with the outside through the two second-side openings 78. The third front lateral groove 83 communicates with the outside via the upper and lower grooves 85.

In the second step, when the adhesive 19 is injected into the first opening 77 on the right side at a high position, the third lateral groove 43 is inserted from the right end of each of the third lateral groove 43 and the first lateral groove 41. And the inside of each of the first lateral grooves 41, and subsequently fills and passes through each of the third lateral grooves 43 and the first lateral grooves 41, and then reaches the first opening 77 on the left side at the lower position. At this time, the adhesive 19 is allowed to overflow from the first opening 77 on the left side.

On the other hand, the adhesive 19 filled in the third horizontal groove 43 proceeds from the rear end portion of the third front vertical groove 63 to the front side while filling the third front vertical groove 63, and the third front vertical groove 63. To the tip of the. However, the adhesive 19 does not contaminate the front end surface of the opto-electric hybrid board 2. Further, the adhesive 19 reaches the third front horizontal groove 83 from the tip of the third front vertical groove 63, advances in the third front horizontal groove 83 to the left and right sides (so as to branch), and It reaches the left and right ends. Subsequently, the adhesive 19 enters the lower end portion of the upper and lower grooves 85 and rises in the upper and lower grooves 85.

On the other hand, the adhesive 19 filled in the first horizontal groove 41 reaches the front end portion of the first rear vertical groove 51, and the first rear vertical groove from the front end portion of the first rear vertical groove 51 toward the rear side. It progresses while filling 51 and reaches the rear part of the first rear longitudinal groove 51. In particular, the adhesive 19 is allowed to overflow from the rear end surface of the main body 21 at the rear end portion of the first rear longitudinal groove 51.

With such a configuration, the adhesive force between the adhesive 19 and the opto-electric hybrid board 2 and connector 3 is improved while increasing the contact area with the opto-electric hybrid board 2 and connector 3.
In addition, although the said invention was provided as exemplary embodiment of this invention, this is only a mere illustration and should not be interpreted limitedly. Variations of the present invention that are apparent to one of ordinary skill in the art are within the scope of the following claims.

The opto-electric hybrid board connector kit is used for manufacturing an opto-electric hybrid board connector.

DESCRIPTION OF SYMBOLS 1 Connector kit 2 Opto-electric hybrid board 3 Connector 4 Electric circuit board 22 Lid 21 Main body 23 Bottom wall 29 Accommodating space 40 Central horizontal groove 41 First horizontal groove 42 Second horizontal groove 43 Third horizontal groove 44 Fourth horizontal groove 50 Rear vertical groove 51 First Rear vertical groove 52 Second rear vertical groove 53 Third rear vertical groove 54 Fourth rear vertical groove 60 Front vertical groove 61 First front vertical groove 62 Second front vertical groove 63 Third front vertical groove 64 Fourth front vertical groove 70 Opening 73 Third opening 76 Sixth opening 77 First opening 78 Second opening 88 Optical waveguide connector

Claims (6)

An optical waveguide member comprising an optical waveguide;
A connector having an accommodation space capable of accommodating the optical waveguide member;
The connector has an opening from the outside of the connector to the optical waveguide member when the optical waveguide member is accommodated in the accommodating space;
At least one of the optical waveguide member and the connector is a groove that communicates with the opening and faces at least the other of the optical waveguide member and the connector when the optical waveguide member is accommodated in the accommodation space. An optical waveguide member connector kit comprising: 2. The optical waveguide member connector according to claim 1, wherein there are a plurality of the openings so as to communicate with each other through the groove when the optical waveguide member is accommodated in the accommodation space. 3. kit. The connector is
A body having a wall;
The optical waveguide member connector kit according to claim 1, further comprising a lid that sandwiches the optical waveguide member together with the wall when the optical waveguide member is accommodated in the accommodation space. The optical waveguide member connector kit according to claim 1, wherein the optical waveguide member is an opto-electric hybrid board further including an electric circuit board. A first step of accommodating the optical waveguide member in the optical waveguide member connector kit according to claim 1, and
After the first step, a second adhesive for bonding the optical waveguide member to the connector is obtained by injecting a fluid adhesive into the opening and allowing the adhesive to flow into the groove from the opening. A method of manufacturing an optical waveguide member connector. An optical waveguide member;
A connector for accommodating the optical waveguide member;
The connector has an opening from the outside of the connector to the optical waveguide member,
At least one of the optical waveguide member and the connector has a groove that communicates with the opening and faces at least the other of the optical waveguide member and the connector;
An optical waveguide member connector, wherein the opening and the groove are filled with an adhesive.

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