JP4762760B2 - Optical communication device and connection method of connection connector in optical communication device - Google Patents

Description

  The present invention relates to an optical communication device such as a media converter applied to an FTTH (Fiber to the Home) system and a connection method of a connection connector in the optical communication device.

Conventionally, in an optical communication device, an optical fiber surplus length processing structure is provided inside in order to perform surplus length processing of an internal optical fiber cable (see, for example, Patent Document 1).
Further, as shown in FIGS. 10 and 11, the optical coupling connector fixing metal fitting 101 is fixed with a rivet 107 on the printed circuit board 100 in the optical communication device. The optical coupling connector fixing metal fitting 101 is made of a substantially L-shaped metal plate material, and a wall surface 102 standing on the printed circuit board 100 is provided with a mounting hole 103 for attaching the optical coupling connector 106. A hole 105 through which the rivet 107 is inserted is provided in the seating surface 104 fixed to the head. An optical module 108 having an optical fiber cable 109 is fixed on the printed circuit board 100. The optical fiber cable 109 is wound up by a clamp 111 provided on the printed circuit board 100 so that the extra length is equal to or greater than a predetermined curvature, and the connection connector 110 provided at the end is connected to the optical connection connector 106.

On the other hand, in order to reduce assembly costs such as extra length processing of optical fiber cables, consider the positional relationship between the position of the optical module and the optical connector, interference with other components, allowable conditions for the curvature of the optical fiber cable, etc. By determining the optical fiber cable length of the optical module, as shown in FIGS. 12 and 13, the design is made such that the extra length portion of the optical fiber cable 108 is eliminated.
JP 2003-279754 A

However, in order to eliminate the extra length of the optical fiber cable 109, the accuracy of the length of the optical fiber cable 109 is required, so that the manufacturing process of the optical module 108 becomes difficult, and this increases the cost of the optical module. It has become.
If the optical fiber cable 109 is shortened, a predetermined curvature of the optical fiber cable 109a in the vicinity of the connection connector 110 cannot be secured when the connection connector 110 is connected to the optical connection connector 106, as shown in FIG.

Further, when the optical fiber cable 109 becomes long, the optical fiber cable 109 protrudes from the printed circuit board 100 as shown in FIG. 13 after the connection connector 110 is connected to the optical coupling connector 106.
The present invention has been made to solve such a conventional problem, and an object of the present invention is to provide an optical communication device and an optical communication device that can connect a connection connector and an optical connection connector even if the extra length of the optical fiber cable is eliminated. It is to provide a connection method of a connection connector in a communication device.

Another object of the present invention is to provide an optical communication device and an optical communication device that can secure a predetermined curvature of the optical fiber cable and connect the connecting connector and the optical connector without giving high accuracy to the length of the optical fiber cable. It is in providing the connection method of the connection connector in.
Still another object of the present invention is to provide an optical communication device and an optical communication device capable of connecting a connection connector and an optical coupling connector without protruding the optical fiber cable from the substrate without giving high accuracy to the length of the optical fiber cable. It is in providing the connection method of the connection connector in.

  The invention according to claim 1 is an optical communication device in which an optical module including an optical fiber cable with a connection connector and an optical fiber cable connection device for attaching an optical connection connector for connecting the connection connector are mounted on a substrate. The optical fiber cable coupling device includes a plate-shaped fixing member having terminals to be soldered to the substrate, a wall portion having a mounting hole for attaching the optical coupling connector, and a direction in which the slide hole made of a long hole is separated from the wall portion. A slide member having a substantially L-shape, and a fixing screw for fixing the slide member on the fixing member. The slide member is a fixing screw when the connection connector and the optical coupling connector are connected. It is characterized by rotating on the fixing member or sliding on the fixing member via a fixing screw in a state where the fixing member is temporarily fixed to the fixing member.

  According to a second aspect of the present invention, in the optical communication device according to the first aspect, the fixing member has a cylindrical protrusion that protrudes and has a threaded portion on the inside, and the slide hole is a length into which the cylindrical protrusion is inserted. The slide member consists of a hole, and the cylindrical protrusion is inserted into the slide hole and is movably superimposed on the fixed member, and a fixing screw is screwed onto the cylindrical protrusion from the slide portion side. It is characterized by being fixed to.

According to a third aspect of the present invention, in the optical communication device according to the first or second aspect, the slide hole is an optical coupling connector in which a fixing screw is attached to the mounting hole when the slide member is fixed on the fixing member. It is characterized by being formed based on the mounting position of the mounting hole in the width direction of the slide member so as not to interfere with the sliding member.
According to a fourth aspect of the present invention, in the optical communication device according to the second aspect, the slide hole has a screw head insertion portion larger than the head of the fixing screw at an end portion away from the wall portion.

According to a fifth aspect of the present invention, in the optical communication device according to any one of the first to fourth aspects, the fixed member regulates the movement of the slide member when the slide member rotates on the fixed member. It has a stopper.
According to a sixth aspect of the present invention, there is provided a method for connecting a connection connector of an optical fiber cable provided in an optical module in an optical communication device according to any one of the first to fifth aspects to an optical coupling connector, and sliding on a fixing member. After superimposing the members, the sliding member is moved over the fixing member so as to secure the allowable curvature of the optical fiber cable and the temporary assembly process in which the fixing screw is screwed and temporarily fixed so that the sliding member can move. A process of rotating and connecting the connector of the optical fiber cable to the optical connector, and a fixing process of returning the slide member to its original position and fixing the slide member on the fixing member via a fixing screw. It is characterized by.

  According to a seventh aspect of the present invention, there is provided a method of connecting a connector of an optical fiber cable provided in an optical module in an optical communication device according to any one of the first to fifth aspects to an optical coupling connector, and a slide member on the fixed member. And a temporary assembly process in which a fixing screw is screwed and temporarily fixed so that the slide member can be moved, and the optical fiber cable is connected when the optical fiber cable connector is connected to the optical connector. An adjustment step of moving the slide member on the fixing member so as not to protrude from the substrate and a step of fixing the slide member on the fixing member via a fixing screw are provided.

  According to an eighth aspect of the present invention, there is provided a method for connecting a connection connector of an optical fiber cable provided in an optical module in an optical communication device according to any one of the fourth and fifth aspects to an optical connection connector, and a cylindrical shape of a fixing member. A fixing screw is screwed onto the protrusion and temporarily fixed, and the fixing screw is inserted from the screw head insertion portion of the slide hole of the slide member, and the slide member is overlaid on the fixing member. A temporary assembling step for guiding the protruding portion into the slide hole, and a connecting step for rotating the slide member on the fixing member so as to ensure the allowable curvature of the optical fiber cable, and connecting the connector of the optical fiber cable to the optical connector And a fixing step of returning the slide member to its original position and fixing the slide member on the fixing member via a fixing screw.

  According to a ninth aspect of the present invention, there is provided a method for connecting a connection connector of an optical fiber cable provided in an optical module in the optical communication device according to any one of the fourth or fifth aspect to an optical connection connector, wherein the fixing member has a cylindrical shape. A fixing screw is screwed onto the protrusion and temporarily fixed, and the fixing screw is inserted from the screw head insertion portion of the slide hole of the slide member, and the slide member is overlaid on the fixing member. A temporary assembling step for guiding the protruding portion to the slide hole, and an adjustment step for moving the slide member on the fixing member so that the optical fiber cable does not protrude from the substrate when the connector of the optical fiber cable is connected to the optical connector. And a fixing step of fixing the slide member onto the fixing member via a fixing screw.

According to the present invention, it is not necessary to give high accuracy to the length of the optical fiber cable. The manufacturing process of the optical module becomes easy, and the manufacturing cost of the optical module can be reduced.
According to the present invention, even if there is no extra length portion of the optical fiber cable, it is possible to secure the predetermined curvature of the optical fiber cable and connect the connection connector and the optical connector.

  According to the present invention, it is possible to connect the connection connector and the optical connection connector without protruding the optical fiber cable from the substrate even without the extra length of the optical fiber cable.

Hereinafter, the present invention will be described based on embodiments shown in the drawings.
As shown in FIGS. 1 to 4, the optical communication device 1 according to the present embodiment includes an optical module 3 including an optical fiber cable 4 provided with a connection connector 5 at an end, and an optical connection for connecting the connection connector 5. An optical fiber cable coupling device 10 for attaching the connector 6 is mounted on the printed circuit board 2. The optical communication apparatus 1 according to the present embodiment includes a plate-like fixing member 11 that solders 2b the optical fiber cable coupling device 10 to the printed circuit board 2, and a slide member 15 that slides or rotates on the fixing member 11. It differs from the conventional optical communication apparatus in the point comprised.

  The fixing member 11 is made of a metal plate material, and is provided with terminals 12 to be inserted into the through holes 2a of the printed circuit board 2 at the four corners by bending. In addition, the fixing member 11 is provided with a cylindrical protrusion 13 that is raised by burring processing at a substantially central portion. The cylindrical protrusion 13 is provided with a female screw inside. The printed circuit board 2 is provided with a relief hole 2c into which a fixing screw 21 screwed into the cylindrical protrusion 13 is inserted. Furthermore, the fixing member 11 is provided with a stopper 14 for restricting the rotation of the slide member 15 on one side. The fixing member 11 is automatically solder mounted by inserting the terminal 12 into the through hole 2a of the printed circuit board 2.

  The slide member 15 is made of a substantially L-shaped metal plate, and includes a wall portion 16 provided with a mounting hole 17 for attaching the optical connector 6 and a slide hole 19 into which the cylindrical projection portion 13 made of a long hole is inserted. And a slide portion 18 provided in a direction away from the portion 16. The slide hole 19 has a screw head insertion portion 20 that is larger than the washer 21 a of the fixing screw 21 at the end away from the wall portion 16. Further, the slide hole 19 interferes with the optical connection connector 6 in which the fixing screw 21 is attached to the attachment hole 17 so that a tool such as a screwdriver can be inserted when the slide member 15 is fixed on the fixing member 11. In order to avoid this, the mounting position of the mounting hole 17 and W are formed in the width direction of the slide member 15.

Next, the operation of this embodiment will be described.
First, as shown by an arrow (A) in FIG. 3, a fixing screw 21 is screwed into the cylindrical protrusion 13 of the fixing member 11 and temporarily fixed.
Next, as shown in FIG. 3B, the screw head insertion portion 20 of the slide hole 19 of the slide member 15 in which the optical connecting connector 6 is attached to the attachment hole 17 is arranged on the fixing screw 21 to insert the screw head. The slide member 15 is overlaid on the fixing member 11 so that the fixing screw 21 is inserted into the portion 20. Next, the slide member 15 is moved on the fixing member 11 so that the fixing screw 21 is positioned in the slide hole 19 from the screw head insertion portion 20.

Next, as shown in FIG. 5, the connection connector 5 of the optical fiber cable 4 is inserted into the optical connection connector 6 while being aligned with the optical connection connector 6.
Next, the slide member 15 is slid back and forth on the fixing member 11 and rotated around the fixing screw 21, and various conditions such as interference with other components and a load applied to the optical fiber cable 4 are brought to the best position. 15 positions are determined.

Next, the fixing screw 21 is tightened with a tool and finally fixed to the cylindrical protrusion 13. As a result, the slide member 15 is fixed on the fixing member 11.
Thus, the connection between the connection connector 5 and the optical coupling connector 6 is completed.
Next, the case where the optical fiber cable 4 is short will be described with reference to FIGS.
First, as shown by an arrow (A) in FIG. 3, a fixing screw 21 is screwed into the cylindrical protrusion 13 of the fixing member 11 and temporarily fixed.

  Next, as shown in FIG. 3B, the screw head insertion portion 20 of the slide hole 19 of the slide member 15 in which the optical connecting connector 6 is attached to the attachment hole 17 is arranged on the fixing screw 21 to insert the screw head. The slide member 15 is overlaid on the fixing member 11 so that the fixing screw 21 is inserted into the portion 20. Next, the slide member 15 is moved on the fixing member 11 so that the fixing screw 21 is positioned in the slide hole 19 from the screw head insertion portion 20.

When the optical fiber cable 4 is short, as shown in FIG. 6, when the connection connector 5 and the optical connection connector 6 are connected, the optical fiber cable 4a near the base of the connection connector 5 has an allowable curvature of the optical fiber cable 4. It cannot be secured.
In this case, as shown in FIG. 7, the slide member 15 is rotated on the fixing member 11 to a position where the allowable curvature of the optical fiber cable 4 can be secured, and the connection connector 5 is inserted into the optical connection connector 6 at that position. Thereafter, the slide member 15 is returned to the original position.

Next, the slide member 15 is slid back and forth on the fixing member 11 and rotated around the fixing screw 21, and various conditions such as interference with other components and a load applied to the optical fiber cable 4 are brought to the best position. 15 positions are determined.
Next, the fixing screw 21 is tightened with a tool and finally fixed to the cylindrical protrusion 13. As a result, the slide member 15 is fixed on the fixing member 11.

Thus, the connection between the connection connector 5 and the optical coupling connector 6 is completed.
Next, the case where the optical fiber cable 4 is long will be described with reference to FIGS.
First, as shown by an arrow (A) in FIG. 3, a fixing screw 21 is screwed into the cylindrical protrusion 13 of the fixing member 11 and temporarily fixed.
Next, as shown in FIG. 3B, the screw head insertion portion 20 of the slide hole 19 of the slide member 15 in which the optical connecting connector 6 is attached to the attachment hole 17 is arranged on the fixing screw 21 to insert the screw head. The slide member 15 is overlaid on the fixing member 11 so that the fixing screw 21 is inserted into the portion 20. Next, the slide member 15 is moved on the fixing member 11 so that the fixing screw 21 is positioned in the slide hole 19 from the screw head insertion portion 20.

When the optical fiber cable 4 is long, as shown in FIG. 8, the optical fiber cable 4 protrudes from the printed circuit board 2 after the connection between the connection connector 5 and the optical connection connector 6 is completed.
In this case, as shown in FIG. 9, the slide member 15 is slid on the fixing member 11, and various conditions such as interference with other components and the load applied to the optical fiber cable 4 are at the best positions. Is decided.

Next, the fixing screw 21 is tightened with a tool and finally fixed to the cylindrical protrusion 13. As a result, the slide member 15 is fixed on the fixing member 11.
Thus, the connection between the connection connector 5 and the optical coupling connector 6 is completed.
As described above, according to the present embodiment, since the extra length of the optical fiber cable 4 can be adjusted by sliding or rotating the slide member 15, the light used in the conventional apparatus for performing extra length processing. The accuracy can be reduced to the same level as the accuracy of the fiber cable length, and the number of manufacturing steps of the optical module 3 can be reduced.

Further, according to the present embodiment, since the extra length of the optical fiber cable 4 can be adjusted by rotating the slide member 15, the predetermined length of the optical fiber cable 4 can be adjusted even if there is no extra length portion of the optical fiber cable 4. The connection connector 5 and the optical coupling connector 6 can be connected while ensuring the curvature.
Further, according to the present embodiment, since the extra length of the optical fiber cable 4 can be adjusted by sliding the slide member 15, the optical fiber cable 4 can be printed even if there is no extra length portion of the optical fiber cable 4. The connection connector 5 and the optical connection connector 6 can be connected without protruding from the substrate 2.

Further, according to the embodiment, since the cylindrical protrusion 13 is provided on the fixing member 11, the guide function of the slide member 15 can be exhibited through the slide hole 19 of the slide member 15.
Further, according to the present embodiment, since the screw head insertion portion 20 is provided at the end of the slide hole 19, the fixing screw 21 can be attached to the fixing member 11 first. That is, once the fixing screw 21 is attached to the fixing member 11, the screw head insertion portion 20 of the slide hole 19 of the slide member 15 is moved to the position of the fixing screw 21 every time the slide member 15 is attached or removed. By doing so, the slide member 15 can be attached or detached, so that it is not necessary to attach or remove the fixing screw 21 every time the slide member 15 is attached or removed. Since the fixing screw 21 is smaller than the slide member 15, it is troublesome to attach and remove the slide member 15 each time the slide member 15 is attached, and it is necessary to store the fixing screw 21 separately. was there.

  In addition, although the said embodiment demonstrated the case where the cylindrical projection part 13 was provided in the fixing member 11, this invention is not limited to this, You may provide a screw hole in the fixing member 11. FIG. In this case, the function of guiding the slide hole 19 by the cylindrical protrusion 13 is not achieved. However, if the fixing screw 21 is screwed into the fixing member 11 in advance, the fixing screw 21 is fixed as in the above embodiment. Thus, the slide member 15 can be rotated or slid.

  Moreover, although the case where the screw head insertion part 20 was provided in the edge part of the slide hole 19 was demonstrated in the said embodiment, this invention is not limited to this, The slide hole 19 without the screw head insertion part 20 is also used. good. In this case, after the slide member 15 is overlaid on the fixing member 11, the fixing screw 21 is screwed into the cylindrical protruding portion 13.

It is a top view which shows the principal part of the optical communication apparatus which concerns on one Embodiment of this invention. It is a perspective view of the optical fiber cable coupling device in FIG. It is a disassembled perspective view which shows the assembly state of the optical fiber cable coupling device in FIG. It is sectional drawing of the optical fiber cable coupling device in FIG. It is a top view which shows the connection method of the connection connector in the optical communication apparatus which concerns on one Embodiment of this invention. It is a top view explaining the case where the optical fiber cable in the optical communication apparatus which concerns on one Embodiment of this invention is short. It is a top view which shows the method of rotating an optical fiber cable coupling device and connecting a connection connector, when the optical fiber cable in the optical communication apparatus which concerns on one Embodiment of this invention is short. It is a top view explaining the case where the optical fiber cable in the optical communication apparatus which concerns on one Embodiment of this invention protrudes from a printed circuit board. It is a top view which shows the method of sliding a fiber optic cable connection apparatus and connecting a connection connector without a protrusion when the optical fiber cable in the optical communication apparatus which concerns on one Embodiment of this invention protrudes from a printed circuit board. It is a top view which shows the connection method of the connection connector in the conventional optical communication apparatus. It is a perspective view of the optical fiber cable coupling device in FIG. It is a top view which shows the connection method of the connection connector in case the optical fiber cable in the optical communication apparatus which eliminated the extra length part of the conventional optical fiber cable is short. It is a top view which shows the connection method of the connection connector which the optical fiber cable in the optical communication apparatus which eliminated the extra length part of the conventional optical fiber cable protrudes from a printed circuit board.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Optical communication apparatus 2 Printed circuit board 2a Through hole 2b Solder 3 Optical module 4 Optical fiber cable 5 Connection connector 6 Optical connection connector 10 Optical fiber cable connection apparatus 11 Fixing member 12 Terminal 13 Cylindrical protrusion 14 Stopper 15 Slide member 16 Wall part 17 Mounting hole 18 Slide part 19 Slide hole 20 Screw head insertion part 21 Fixing screw 22 Washer

Claims (9)

An optical communication device comprising an optical module provided with an optical fiber cable with a connection connector and an optical fiber cable coupling device for mounting an optical coupling connector for connecting the connection connector mounted on a substrate,
The optical fiber cable coupling device is:
A plate-like fixing member having terminals soldered to the substrate;
A slide member having a substantially L shape having a wall portion having a mounting hole for attaching the optical coupling connector, and a slide portion provided with a slide hole formed of a long hole in a direction away from the wall portion;
A fixing screw for fixing the slide member on the fixing member;
The slide member rotates on the fixing member via the fixing screw in a state where the sliding member is temporarily fixed to the fixing member via the fixing screw when the connection connector and the optical coupling connector are connected, or the fixing member An optical communication device that slides on top. The optical communication device according to claim 1.
The fixing member has a cylindrical protrusion that protrudes and has a threaded portion on the inside,
The slide hole is composed of an elongated hole into which the cylindrical protrusion is inserted,
The slide member is configured such that the cylindrical protrusion is inserted into the slide hole and is movably overlaid on the fixing member, and the fixing screw is screwed onto the cylindrical protrusion from the slide portion side. An optical communication device fixed on the fixing member. The optical communication device according to claim 1 or 2,
When the slide member is fixed on the fixing member, the slide hole is arranged in the width direction of the slide member so that the fixing screw does not interfere with the optical connection connector attached to the attachment hole. An optical communication device characterized in that it is formed according to the mounting position. The optical communication device according to claim 2,
The slide hole has a screw head insertion portion larger than a head of the fixing screw at an end portion away from the wall portion. The optical communication device according to any one of claims 1 to 4,
The optical communication device, wherein the fixing member includes a stopper that restricts movement of the slide member when the slide member rotates on the fixing member. In the method of connecting the connection connector of the optical fiber cable with which the optical module in the optical communication apparatus in any one of Claims 1 thru / or 5 was equipped to the optical connection connector,
A temporary assembling step for temporarily fixing the fixing member by screwing the fixing screw so that the sliding member can move after the sliding member is overlaid on the fixing member;
A step of rotating the slide member on the fixing member so as to ensure an allowable curvature of the optical fiber cable, and connecting a connector of the optical fiber cable to the optical connector;
A method of connecting a connection connector in an optical communication device, comprising: a fixing step of returning the slide member to an original position and fixing the slide member on the fixing member via the fixing screw. A method for connecting a connector of the optical fiber cable provided in the optical module in the optical communication device according to any one of claims 1 to 5, to the optical connector.
A temporary assembling step for temporarily fixing the fixing member by screwing the fixing screw so that the sliding member can move after the sliding member is overlaid on the fixing member;
An adjustment step of moving the slide member on the fixed member so that the optical fiber cable does not protrude from the substrate when the optical fiber cable connector is connected to the optical connector;
A step of fixing the slide member on the fixing member via the fixing screw. A method of connecting a connection connector in an optical communication device. In the method of connecting the connection connector of the said optical fiber cable with which the said optical module in the optical communication apparatus in any one of Claim 4 or Claim 5 was equipped to the said optical connection connector,
The fixing screw is screwed into the cylindrical protrusion of the fixing member and temporarily fixed, and the fixing screw is inserted from the screw head insertion portion of the slide hole of the slide member, and the slide member is stacked on the fixing member. After the alignment, the temporary assembly step of moving the slide member to guide the cylindrical protrusion to the slide hole;
A connecting step of rotating the slide member on the fixing member so as to ensure an allowable curvature of the optical fiber cable, and connecting a connector of the optical fiber cable to the optical connector;
A method of connecting a connection connector in an optical communication device, comprising: a fixing step of returning the slide member to an original position and fixing the slide member on the fixing member via the fixing screw. In the method of connecting the connection connector of the said optical fiber cable with which the said optical module in the optical communication apparatus in any one of Claim 4 or Claim 5 was equipped to the said optical connection connector,
The fixing screw is screwed into the cylindrical protrusion of the fixing member and temporarily fixed, and the fixing screw is inserted from the screw head insertion portion of the slide hole of the slide member, and the slide member is stacked on the fixing member. After the alignment, the temporary assembly step of moving the slide member to guide the cylindrical protrusion to the slide hole;
An adjustment step of moving the slide member on the fixed member so that the optical fiber cable does not protrude from the substrate when the optical fiber cable connector is connected to the optical connector;
A fixing step of fixing the slide member onto the fixing member via the fixing screw. A connection connector connection method in an optical communication device, comprising:

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