JP2014021448A - Optical transceiver, substrate with optical transceiver, and optical communication equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an optical transceiver, a substrate with an optical transceiver, and optical communication equipment which can improve positioning accuracy of an optical fiber connection part.SOLUTION: An optical transceiver 10 comprises: an optical fiber connection part 12 to which an optical fiber is connected; a first circuit board 20 to which the optical fiber connection part 12 is connected and in which a photoelectric conversion element is mounted; a terminal one end side of which is connected to the first circuit board 20 and the other end side of which is connected to an outside; and a housing body part 34 with which the first circuit board 20 and the terminal are assembled. At least one sides of the optical fiber connection part 12 and the housing body part 34 have first ribs 17D which are abutted to the other sides and hold the optical fiber connection part 12 in the positioned state.

Description

  The present invention relates to an optical transceiver, a substrate with an optical transceiver, and an optical communication device.

  Conventionally, as an optical transceiver, for example, there is one described in Patent Document 1 below. In the optical transceiver of Patent Document 1, a light emitting module and a light receiving module having an engaging portion to which a ferrule of an optical fiber is connected are attached to a wiring board and fixed.

  The light emitting module and the light receiving module are connected to an optical connector plug on the other side, and optical coupling between optical fibers is performed.

Japanese Patent Laid-Open No. 2003-133661

  By the way, in order to perform the optical coupling between the optical fibers satisfactorily, it is necessary that the part to which the optical fiber is connected (optical fiber connection part) is positioned reliably.

  In the configuration of Patent Document 1, the light emitting module and the light receiving module are fixed to the wiring board, but it is desirable to further improve the positioning accuracy in order to improve the optical coupling.

  The present invention has been completed based on the above circumstances, and provides an optical transceiver, a substrate with an optical transceiver, and an optical communication device capable of improving the positioning accuracy of an optical fiber connection portion. With the goal.

  An optical transceiver according to the present invention includes an optical fiber connection portion to which an optical fiber is connected, a first circuit board to which the optical fiber connection portion is attached and a photoelectric conversion element is mounted, and one end side connected to the first circuit board. A terminal connected to the outside on the other end side, and a housing body part to which the first circuit board and the terminal are assembled, at least one side of the optical fiber connection part and the housing body part being the other side And a positioning holding part that holds the optical fiber connection part in a positioning state.

  According to this configuration, at least one side of the optical fiber connection portion and the housing main body portion has the positioning holding portion that contacts the other side and holds the optical fiber connection portion in a positioned state. Can be improved.

It is preferable to have the following configuration as an embodiment of the above configuration.
The positioning holding portion is a curved outer peripheral surface of the optical fiber connection portion and a first rib that protrudes from at least one side of the housing main body portion that is fitted to the outer peripheral surface and is pressed against the other side.
If it does in this way, an optical fiber connection part can be held in a positioning state by simple composition.

The optical fiber connection portion includes a fitting groove, the housing main body portion includes a position fixing wall that is fitted into the fitting groove, and the positioning holding portion includes the optical fiber connection portion and the position fixing that face each other. A second rib provided on at least one side of the wall and pressed against the other side.
If it does in this way, an optical fiber connection part can be held in a positioning state by simple composition.

The optical fiber connection portion includes a substrate fixing portion that is fixed to the first circuit board, and an inner wall of the housing main body portion and a side surface of the substrate fixing portion are arranged to face each other; At least one side of the inner wall and the side surface of the substrate fixing portion includes a third rib pressed against the other side.
If it does in this way, an optical fiber connection part can be held in a positioning state using composition of a substrate fixing part to which the 1st circuit board is fixed.

The optical fiber connection portion has a flange portion that protrudes in a polygonal bowl shape, and the positioning holding portion holds the flange portion in a positioned state.
In this way, since the flange portion is used for positioning the optical fiber connection portion, the optical fiber connection portion can be easily positioned. Moreover, it becomes easy to suppress the play of the optical fiber connecting portion as compared with the case where the circular flange portion is held in the positioned state.

A lid portion that covers the housing main body portion is provided, and the positioning holding portion is a pressing portion that is provided on the lid portion and holds the optical fiber connection portion in a positioning state by pressing the flange portion.
If it does in this way, it will become possible to hold | maintain an optical fiber connection part in a positioning state using a cover part. In addition, since the polygonal flange portion is pressed, it becomes easier to reliably prevent the optical fiber connection portion from rattling compared to pressing the circular flange portion.

A substrate with an optical transceiver comprising any one of the above optical transceivers and a second circuit board to which the other end of the terminal is connected.
An optical communication device in which the substrate with an optical transceiver is accommodated in a case.

  According to the present invention, it is possible to improve the positioning accuracy of the optical fiber connection portion.

Sectional drawing which shows the board | substrate with an optical transceiver provided with the optical transceiver of Embodiment 1. AA sectional view of FIG. The top view showing the optical module and terminal module of a temporary assembly state Side view showing optical module and terminal module in a temporarily assembled state Plan view showing the housing body The top view which shows the state in which the optical module and the terminal module were accommodated in the housing main-body part. The perspective view which shows a mode that an optical module and a terminal module are assembled | attached to a temporary assembly state. The perspective view which shows a mode that the optical module and terminal module of a temporary assembly state are assembled | attached to a housing main-body part. Side view showing how the temporarily assembled optical module and terminal module are assembled to the housing body Side view showing a state in which the optical module and the terminal module are assembled to the housing body. The perspective view which shows a mode that a cover part is covered on a housing main-body part. The perspective view which shows a mode that a shield member is mounted | worn to a housing Perspective view showing optical transceiver

<Embodiment 1>
The first embodiment will be described in detail with reference to FIGS.
The optical transceiver 10 in this embodiment is mounted on a vehicle such as an automobile, and as shown in FIG. 1, an optical module 11 to which an optical fiber is connected and a plurality of terminals connected to the optical module 11. And a housing main body 34 to which the optical module 11 and the terminal module 22 are assembled. A substrate 49 with an optical transceiver in which the second circuit board 48 is mounted on the optical transceiver 10 is housed in a case 50 to constitute an optical communication device. In the following, the vertical direction will be described with reference to FIG. 1, with the left side (fitting direction with the mating connector) in FIG. 1 being the front and the right side being the rear.

The optical module 11 includes an optical fiber connection portion 12 to which an optical fiber is connected, and a first circuit board 20 disposed behind the optical fiber connection portion 12.
The optical fiber connection portion 12 is a molded product of a light-transmitting synthetic resin (for example, polyetherimide (PEI), polycarbonate (PC), polymethyl methacrylate resin (PMMA)), and is formed at the end of the optical fiber. A pair of generally cylindrical sleeve portions 13 and 13 into which an externally fitted ferrule can be inserted, a pair of lens portions 14 and 14 disposed on an extension of the axis of the optical fiber, the first circuit board 20 and the housing 33. The fixed part 15 to be fixed to is integrally formed.

  The sleeve portions 13 and 13 have the same shape and are arranged at the same height position, and mounting recesses 13A and 13A in which an external ferrule can be mounted are formed at the tip portion.

  As shown in FIG. 7, four (plural) lightening portions 13B are formed on the outer peripheral surface of each sleeve portion 13 at predetermined intervals (predetermined angles (90 degrees in the present embodiment)) in the circumferential direction. ing. Each thinned portion 13B has a shape in which the outer peripheral surface of the sleeve portion 13 is cut out at a substantially right angle. Thereby, the cross section of the sleeve portion 13 at the position of the thinned portion 13B forms a cross in the vertical and horizontal directions.

  As shown in FIG. 1, the lens portions 14 and 14 are both provided on the axis of each sleeve portion 13 and face each photoelectric conversion element mounted on the first circuit board 20. Thereby, one lens part 14 condenses the light radiate | emitted from the light emitting element on the end surface of an optical fiber, and the other lens part 14 condenses the light from an optical fiber on a light receiving element.

  The fixed portion 15 includes a housing fixing portion 17 connected to the rear of the sleeve portion 13 and fixed to the housing main body 34, a substrate fixing portion 16 connected to the rear of the housing fixing portion 17 and fixed to the first circuit board 20, and Have

As shown in FIG. 7, the housing fixing portion 17 includes a flange portion 17A that protrudes outward in a bowl shape, and a curved surface portion 18 having a circular curved outer peripheral surface, and behind the flange portion 17A. The adjacent portion is an insertion groove 17C into which the position fixing wall 37 of the housing main body 34 is inserted.
The flange portion 17 </ b> A has a rectangular plate shape whose outer shape is long in the left-right direction (the arrangement direction of the sleeve portions), and is formed between the base end portions of the pair of sleeve portions 13.

The upper end of the flange portion 17A is horizontal throughout the width direction and is equal to the upper end position of the pair of sleeve portions 13. That is, the flange portion 17A does not protrude above the pair of sleeve portions 13 on the upper side.
On the other hand, the lower side of the flange portion 17 </ b> A protrudes downward from the lower end position of the pair of sleeve portions 13.

The curved surface portion 18 has an upper end serving as a pressed portion 17B pressed by a lid portion 41 described later together with the upper end 19 of the flange portion 17A, and a fitting groove into which the position fixing wall 37 of the housing main body portion 34 is press-fitted downward. 17C is provided.
A first rib 17D (an example of a “positioning holding portion”) extending in the circumferential direction is formed on the curved surface portion 18 (groove bottom of the insertion groove 17C).
The first rib 17 </ b> D is provided on a substantially half circumference that is the outer surface of the curved surface portion 18.

  As shown in FIG. 1, a concave portion is formed at the rear end portion of the optical fiber connecting portion 12, and an inner shield 15A formed by pressing a metal plate material into a predetermined shape is attached to the concave portion. Yes.

The board fixing part 16 has a rectangular plate shape that is long in the left-right direction, and is attached and fixed to a substantially lower half of the first circuit board 20.
As shown in FIG. 7, a pair of second ribs 16 </ b> A (an example of “positioning holding portion”) extending in the vertical direction are formed on the side of the curved surface portion 18 on the front surface of the substrate fixing portion 16. A third rib 16 </ b> B (an example of a “positioning holding portion”) extending in the vertical direction is formed on the side surface.

  The second rib 16A is provided from the upper end to the lower end of the substrate fixing portion 16 along the side edge of the flange portion 17A. When the position fixing wall 37 is press-fitted into the insertion groove 17C, the second rib 16A is inserted. The second rib 16 </ b> A is pressed against the back surface of the position fixing wall 37.

  The third rib 16 </ b> B is formed with a predetermined length in the vertical direction at a position near the center of the side surface of the substrate fixing portion 16.

  The first rib 17D, the second rib 16A, and the third rib 16B are formed on the inner wall (and the lid portion 41) of the housing main body 34 when the optical fiber connection portion 12 (optical module 11) is fitted into the housing main body 34. The optical fiber connection portion 12 is held in a positioning state by being pressed against the bottom surface of the optical fiber connection portion, and a protruding dimension capable of preventing the optical fiber connection portion 12 from rattling, a width dimension of each rib, and , Formed with strength.

  The substrate fixing portion 16 can be fixed to the first circuit board 20 by a known fixing means such as adhesion, screwing, or locking to the first circuit board 20.

  The first circuit board 20 includes a conductive path (not shown) formed by a printed wiring technique and a large number of through holes 21 provided so as to pass through the conductive path. When being fitted into the housing, the posture of the housing main body 34 stands substantially perpendicular to the bottom wall 33A of the housing main body 34. Thereby, the plate surface of the first circuit board 20 is at an angle substantially orthogonal (crossing) to the extending direction (front-rear direction) of the optical fiber connecting portion 12.

The first circuit board 20 includes a photoelectric conversion element (not shown) and constitutes a photoelectric conversion circuit.
As the photoelectric conversion element, a light emitting element (VCSEL) that converts an electrical signal into an optical signal and a light receiving element (photodiode) that converts the optical signal into an electrical signal are provided. By mounting both the light receiving element and the light emitting element on one first circuit board 20, the first circuit board 20 can be downsized.

  The through hole 21 has a circular shape, is electrically connected to the conductive path of the first circuit board 20, has a plating 21 </ b> A made of tin plating or the like formed on the inner surface, and is connected to the front end side (one end side) of the terminal 23. ) Is inserted and connected.

In the terminal module 22, a plurality of terminals 23 are held by a terminal holding portion 29 made of synthetic resin.
The terminal 23 has an elongated rectangular bar shape bent in an L shape, and has an insertion portion 24 inserted into the through hole 21 on the front end side (one end side).

  When the insertion portion 24 is inserted into the through hole 21 and soldered, the terminal 23 and the through hole 21 are electrically connected.

  Each terminal 23 has a positioning portion 26 protruding left and right in a step shape for positioning the insertion depth when press-fitting into the housing main body portion 34, and a biting portion 27 that is pressed into the inner wall surface of the press-fitting hole 40. Is provided.

  Note that the lower end side (the other end side) of the terminal 23 penetrates the bottom wall 33A of the housing main body 34 and protrudes downward, and is inserted into the through hole of the second circuit board 48 to be a conductive path of the second circuit board 48. The external connection unit 28 is connected to the external connection unit 28.

The terminal holding portion 29 has a rectangular plate shape and holds all the terminals 23 collectively, and is formed with a press-fitting hole 30 into which each terminal 23 is press-fitted.
The terminal holding portion 29 is formed with a locking piece 31 that is locked to the housing main body portion 34. The locking piece 31 protrudes in a rectangular shape laterally from the substantially lower half of the left and right ends of the terminal holding portion 29.

  The housing body 34 is made of synthetic resin, and has a substantially box shape opened upward as shown in FIG. 11, and a hood 35 in which a mating optical connector is fitted from the front, and an optical module. 11 and a terminal portion 36 in which the terminal 23 is accommodated from above, and a cover portion 41 is put on the upper side of the housing main body portion 34 to constitute the housing 33.

The hood portion 35 has a rectangular tube shape, and a pair of guide projections 35A for guiding the counterpart optical connector are provided on the upper wall so as to protrude inward.
As shown in FIG. 8, a position fixing wall 37 that press-fits into the fitting groove 17 </ b> C of the optical fiber connection portion 12 and fixes the assembly position of the optical fiber connection portion 12 and the terminal 23 are press-fitted and fixed to the housing portion 36. Terminal fixing portion 39 is provided.

The position fixing wall 37 is erected on the bottom wall 33 </ b> A of the housing main body 34 and divides the inside of the housing portion 36 in the front-rear direction.
The position fixing wall 37 has a concave portion 37 </ b> A that is formed in an arc shape in accordance with the outer peripheral shape of the optical fiber connection portion 12 fitted from above at the upper end portion (tip portion).

The terminal fixing portion 39 is provided at a portion where the bottom wall 33A of the housing main body 34 is thick on the rear end side of the accommodating portion 36.
In the terminal fixing part 39, press-fitting holes 40 capable of press-fitting and fixing the terminals 23 are formed in a plurality of rows and a plurality of stages. Each press-fit hole 40 has a substantially square shape and penetrates the terminal fixing portion 39 in the vertical direction.

  As shown in FIG. 11, the lid 41 has an opening 41 </ b> A in a substantially second half portion of the rectangular plate-shaped member, and the lid 41 is covered with the lid 41 on the housing main body 34. 1 circuit board 20 and terminal 23 are exposed.

Further, on the bottom surface side of the lid portion 41, as shown in FIG. 1, a pressing portion 42 (an example of a “positioning holding portion”) that presses the optical fiber connection portion 12 from above, and a press-fitting convex portion (not shown) Is provided. The pressing portion 42 has a wall shape protruding downward from the bottom surface of the lid portion 41 and presses the pressed portion 17B including the upper end 19 of the flange portion 17A downward from above.
The press-fit convex portion is press-fitted into a press-fit concave portion 34A provided at the upper end portion of the side wall of the housing main body portion 34, so that the lid portion 41 holds the optical fiber connection portion 12 downward and the lid portion 41 is closed. Hold.

  On the left and right side walls of the housing main body 34, as shown in FIG. 11, a locking portion 46 that is capable of locking the locking piece 31 of the terminal holding portion 29 inside and that is open on the upper side is a housing main body portion. 34 is formed on both side walls. The dimension of the locking portion 46 in the front-rear direction is a dimension having a predetermined clearance as compared with the thickness dimension of the locking piece 31. Moreover, the upper part of the latching | locking part 46 is made into the inclined part 46A diameter-expanded toward upper direction in the inclined form.

  As shown in FIG. 12, a shield member 43 is attached to the outside of the housing 33 so as to cover a portion excluding the hood portion 35. The shield member 43 is formed by pressing a metal plate material into a predetermined shape, and its front and lower surfaces are open.

  The shield member 43 is held in a state in which the shield member 43 is assembled to the housing 33 by the claw portion 44 provided at the lower end edge being folded back to the lower surface side of the housing 33. Further, a plurality of connecting leg portions 45 provided so as to protrude downward are formed at the lower end portion of the shield member 43. The connection leg 45 penetrates the second circuit board 48 and is connected to the conductive path of the second circuit board 48 by a known method such as soldering.

Next, an example of a method for manufacturing the optical transceiver 10 will be described.
The optical fiber connector 12 is attached to the first circuit board 20 to form the optical module 11.
Further, all the terminals 23 are press-fitted into the terminal holding portion 29 from the lower end side to form the terminal module 22 (FIG. 7).

  Next, the insertion portions 24 of all the terminals 23 of the terminal module 22 are inserted into the plurality of through holes 21 of the first circuit board 20 from the front end side (one end side) to obtain a temporarily assembled state.

  Next, an assembling process for assembling the temporarily assembled optical module 11 and terminal module 22 to the housing body 34 is performed. In this assembling step, the other end of each terminal 23 is press-fitted into the press-fitting hole 40 of the terminal fixing portion 39, and the position fixing wall 37 is press-fitted into the fitting groove 17C of the optical fiber connecting portion 12 (FIG. 11).

  In addition, when the position fixing wall 37 is press-fitted into the insertion groove 17C, the second rib 16A slightly bites so as to be crushed by being pressed against the back surface of the position fixing wall 37, and the third rib 16B is pressed against the inner wall of the housing main body 34. Slightly bite to be crushed.

Next, when the cover 41 is put on the housing main body 34, first, the pressing portion 42 of the lid 41 abuts on the pressed portion 17B including the upper end 19 of the flange portion 17A, and the cover 41 is press-fitted. The convex portion is press-fitted into the press-fitting concave portion 34A of the housing main body 34, and the pressed portion 17B of the optical fiber connection portion 12 is pressed downward by the pressing portion 42 of the lid portion 41 (see FIGS. 1 and 2). ).
At this time, the curved surface portion 18 is pressed against the concave portion 37A of the position fixing wall 37 and bites into the concave portion 37A so that the first rib 17D is crushed.

And the penetration part 24 of each terminal 23 is soldered through-hole 21. This soldering operation may be performed, for example, by passing a soldering tool or the like through the opening 41A.
It should be noted that the soldering of the insertion portion 24 to the through hole 21 may be performed before the optical module 11 and the terminal module 22 are assembled to the housing main body 34. In this case, the optical module 11 and the terminal connected by soldering. The module 22 is assembled to the housing main body 34.

  Next, the shield member 43 is attached (FIG. 12). The shield member 43 is externally fitted to the housing 33, and the claw portion 44 is folded to the lower surface side of the housing 33 to assemble the shield member 43 to the housing 33. Thereby, the assembly of the optical transceiver 10 is completed (FIG. 13).

  Then, the second circuit board 48 is mounted below the optical transceiver 10, and the external connection portion 28 on the other end side of the terminal 23 is soldered to the through-hole of the second circuit board 48 by flow soldering or the like. A substrate 49 is formed (FIG. 1). Also, the optical communication device is formed by housing the substrate 49 with an optical transceiver in the case 50.

According to the said embodiment, there exist the following effects.
(1) According to the present embodiment, at least one side of the optical fiber connection portion 12 and the housing main body portion 34 is in contact with the other side to hold the optical fiber connection portion 12 in a positioned state, and the second rib 17D. Since the rib 16A, the third rib 16B, and the pressing portion 42 (positioning holding portion) are provided, the positioning accuracy of the optical fiber connection portion 12 can be improved.

(2) The positioning holding portion is a first rib 17D that protrudes from at least one side of the curved outer peripheral surface of the optical fiber connection portion 12 and the housing main body portion 34 fitted to the outer peripheral surface and is pressed against the other side.
If it does in this way, optical fiber connection part 12 can be held in a positioning state with simple composition.

(3) The optical fiber connecting portion 12 includes a fitting groove 17C, the housing main body portion 34 includes a position fixing wall 37 that is fitted into the fitting groove 17C, and the positioning holding portion includes the optical fiber connecting portion 12 and the opposing optical fiber connecting portion 12 and The second rib 16A is provided on at least one side of the position fixing wall 37 and pressed against the other side.
If it does in this way, optical fiber connection part 12 can be held in a positioning state with simple composition.

(4) The optical fiber connecting portion 12 includes the substrate fixing portion 16 fixed to the first circuit board 20, and the inner wall of the housing main body portion 34 and the side surface of the substrate fixing portion 16 are arranged to face each other. At least one side of the inner wall of the portion 34 and the side surface of the substrate fixing portion 16 includes a third rib 16B that is pressed against the other side.
If it does in this way, the optical fiber connection part 12 can be hold | maintained in the positioning state using the structure of the board | substrate fixing | fixed part 16 to which the 1st circuit board 20 is fixed.

(5) The optical fiber connection portion 12 has a flange portion 17A protruding in a polygonal bowl shape, and the positioning holding portion holds the flange portion 17A in a positioned state.
In this way, since the flange portion 17A is used for positioning the optical fiber connection portion 12, the optical fiber connection portion 12 can be easily positioned. Moreover, it becomes easy to suppress the play of the optical fiber connection part 12 compared with the case where the circular flange part 17A is held in the positioning state.

(6) A lid 41 that covers the housing main body 34 is provided, and the positioning holding unit is a holding unit 42 that is provided on the lid 41 and holds the optical fiber connection unit 12 in the positioning state by pressing the flange 17A.
If it does in this way, it will become possible to hold optical fiber connecting part 12 in a positioning state using lid part 41. Further, since the polygonal flange portion 17A is pressed, it becomes easier to reliably prevent the optical fiber connection portion 12 from rattling compared to the case where the circular flange portion 17A is pressed.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the above embodiment, the optical fiber connection portion 12 is held in the positioning state by the first rib 17D, the second rib 16A, the third rib 16B, and the pressing portion 42. However, the configuration is not limited thereto. Absent. For example, instead of these, or together with these, a rib, a convex portion, or the like that can hold the optical fiber connection portion 12 in a positioned state may be provided.

(2) In the above embodiment, the flange portion 17A has a rectangular shape, but is not limited thereto, and may have a polygonal shape other than a rectangular shape.
(3) In the above-described embodiment, the first rib 17D, the second rib 16A, and the third rib 16B are provided in the optical fiber connection portion 12, but not limited thereto, the rib is provided on the housing main body 34 side, You may make it hold | maintain the optical fiber connection part 12 in the positioning state by pressing on the optical fiber connection part 12 side.

DESCRIPTION OF SYMBOLS 10 ... Optical transceiver 11 ... Optical module 12 ... Optical fiber connection part 13 ... Sleeve part
15 ... Fixed part 15A ... Inner shield part 16 ... Substrate fixing part 16A ... Second rib (positioning holding part)
16B ... 3rd rib (positioning holding part)
17A ... Flange portion 17B ... Pressed portion 17C ... Fitting groove 17D ... First rib (positioning holding portion)
18 ... Curved surface part 19 ... Upper end 20 of flange part ... First circuit board 21 ... Through hole 22 ... Terminal module 23 ... Terminal 24 ... Insertion part 26 ... Positioning part 27 ... Biting part 28 ... External connection part 29 ... Terminal holding part 31 ... Locking piece 33 ... Housing 33A ... Bottom wall 34 ... Housing main body 36 ... Housing part 37 ... Position fixing wall 37A ... Depressed part 38 ... Press-fit recess 39 ... Terminal fixing part 40 ... Press-fit hole 41 ... Lid 42 (Positioning holding part)
43 ... Shield member 46 ... Locking portion 48 ... Second circuit board 49 ... Substrate with optical transceiver 50 ... Case

Claims (8)

An optical fiber connection to which an optical fiber is connected;
A first circuit board to which the optical fiber connecting portion is attached and a photoelectric conversion element is mounted;
A terminal having one end connected to the first circuit board and the other end connected to the outside;
A housing main body to which the first circuit board and the terminal are assembled,
At least one side of the optical fiber connection part and the housing main body part is an optical transceiver having a positioning holding part that contacts the other side and holds the optical fiber connection part in a positioning state. The positioning holding portion is a curved outer peripheral surface of the optical fiber connecting portion and a first rib that protrudes from at least one side of the housing main body fitted to the outer peripheral surface and is pressed against the other side. The described optical transceiver. The optical fiber connection portion includes a fitting groove,
The housing main body includes a position fixing wall that is fitted into the fitting groove,
3. The optical transceiver according to claim 1, wherein the positioning holding portion is a second rib provided on at least one side of the optical fiber connection portion and the position fixing wall facing each other and pressed against the other side. 4. The optical fiber connection portion includes a substrate fixing portion fixed to the first circuit board,
The inner wall of the housing main body and the side surface of the substrate fixing part are arranged to face each other.
4. The optical transceiver according to claim 1, wherein at least one side of an inner wall of the housing main body and a side surface of the substrate fixing portion includes a third rib pressed against the other side. 5. The optical fiber connection portion has a flange portion protruding in a polygonal bowl shape,
The optical transceiver according to any one of claims 1 to 4, wherein the positioning holding unit holds the flange portion in a positioned state. A lid that covers the housing body;
The optical transceiver according to claim 5, wherein the positioning holding portion is a pressing portion that is provided on the lid portion and holds the optical fiber connection portion in a positioning state by pressing the flange portion. A board with an optical transceiver comprising: the optical transceiver according to any one of claims 1 to 6; and a second circuit board to which the other end of the terminal is connected.   An optical communication device in which the substrate with an optical transceiver according to claim 7 is accommodated in a case.

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