JP6251620B2 - Optical connector fixing member, optical connector fixing method, and optical connector fixing structure - Google Patents

Description

  The present invention relates to an optical connector fixing member, an optical connector fixing method, and an optical connector fixing structure, in particular, for example, an optical connector fixing member, an optical connector fixing method, and an optical connector for fixing an optical connector to a backplane or a midplane. It relates to a fixed structure.

In recent years, in a supercomputer, a router, a high-end server, or the like that requires ultra-high-speed information processing, an optical interconnection technology that performs inter-board communication in a device by using an optical signal is becoming popular. As one of the techniques, for example, there is one that performs inter-board communication via a backplane or a midplane in a device (for example, see Patent Document 1).
This Patent Document 1 describes a technology that uses a backboard (backplane) for optical communication between package boards (boards). An input optical connector and an output optical connector are fixed on the backboard, and optical fibers that connect these optical connectors are wired along the backboard. The optical fiber extending from the input optical connector and the output optical connector to the back board back side is bent in a direction along the back board by being fixed to a fixing member provided on the back board.
By the way, in the optical interconnection technology using the backplane, in order to attach the optical connector to the backplane, an attachment part made entirely of a spring material may be used (for example, see Patent Document 2).
In the mounting member described in Patent Document 2, the main body is mounted on a backplane housing fixed to the backplane, and an elastic claw having an engaging claw is inserted into a mounting hole formed in the backplane. The attachment members are attached to the backplane by engaging the engaging claws of the elastic claws with both sides of the attachment holes. That is, the backplane housing can be attached to the backplane simply by inserting the attachment parts into the attachment holes and engaging the engaging claws, and the work of fixing the optical connector to the backplane is simple.

JP 2008-58695 A JP 11-125742 A

  However, in the technique described in Patent Document 1, the work of fixing the optical fiber to the fixing member in order to bend the optical fiber in the direction along the backboard is somewhat complicated.

  In the technique described in Patent Document 2, the work of fixing the optical connector to the substrate is simple, but the work of bending the optical fiber in the direction along the backboard is separately required.

  The present invention has been made to solve such problems. For example, in an optical interconnection technology using a backplane or a middle plane, an operation of fixing an optical connector to those substrates, or an extension from the optical connector. It is possible to more easily perform an operation of bending and fixing the optical fiber to be bent in a direction along the substrate.

In order to solve the above problems, the present invention has the following configuration.
That is, the first aspect of the present invention is an optical connector fixing member for fixing an optical connector to a board so that the fitting direction of the optical connector is a direction intersecting the board, on both sides of the plate-like base portion and the base portion in the longitudinal direction. Each of the base part and the projecting part is elastically deformable, and the projecting part has an opening through which an optical fiber extending from an optical connector formed on the substrate is inserted. A board engaging part that engages with the opening in a state of being opposed to the part and protruding to one side of the board, and a connector engaging part that engages with an engaging part of an optical connector disposed on the other side of the board The board engaging portion is an optical connector fixing member that is provided on the protruding portion so as to be separated from the base portion by a distance equal to or larger than the outer diameter of the optical fiber.

  According to this optical connector fixing member, the plate-like base portion and the protruding portions erected on both sides in the longitudinal direction of the base portion are provided, and at least one of the base portion and the protruding portion can be elastically deformed. The protrusion has a substrate engaging portion that engages with the opening in a state where the base is opposed to the opening through which the optical fiber formed on the substrate is inserted and protrudes to one surface side of the substrate. Therefore, the optical connector fixing member can deform at least one of the base portion and the protruding portion, and can be inserted through the opening formed in the substrate to engage the substrate engaging portion with the opening. Further, the optical connector is fixed to the substrate by engaging the connector engaging portion of the optical connector with the connector engaging portion provided on the protrusion. Thereby, an optical connector can be fixed to a board | substrate with an easy operation | work. In addition to this, the substrate engaging portion of the protrusion is engaged with the opening of the substrate in a state where the base is opposed to the opening formed in the substrate and protrudes to the other side of the substrate, and light is emitted from the base. The protrusion is provided at a distance greater than the outer diameter of the fiber. As a result, the base portion is opposed to the opening portion, and a space through which the optical fiber can be inserted is formed between the substrate and the base portion. Therefore, the optical fiber drawn from the opening portion of the substrate is easily bent in the direction along the substrate. It becomes possible. As a result, the operation of fixing the optical connector to the substrate and the operation of bending the optical fiber extending from the optical connector in the direction along the substrate can be more easily performed.

  In the optical connector fixing member, the board engaging portion has a pair of contact pieces that engage with the board from both sides, and at least one of the pair of contact pieces is outside the protrusion. It is desirable that at least one of the base and the protrusion is elastically deformable so that the tips of the protrusions are closer to each other than the base ends.

  According to this optical connector fixing member, the board engaging portion has a pair of contact pieces that respectively engage with the board from both sides, and at least one of the pair of contact pieces is outside the protrusion. And at least one of the base and the protrusion is elastically deformable so that the tips of the protrusions are closer to each other than the base ends. For this reason, the contact pieces provided outside the protrusion can be inserted into the opening formed in the substrate simply by elastically deforming at least one of the base and the protrusion and bringing them close to each other. . That is, the operation of engaging the optical connector fixing member with the substrate can be performed more easily.

  In the optical connector fixing member, it is desirable that at least one of the pair of contact pieces is elastically deformable.

  According to this optical connector fixing member, when stress in the longitudinal direction is applied to the optical connector by the counterpart optical connector, the contact piece is elastically deformed, and the optical connector fixing member is weakly engaged with the substrate. Become. For this reason, the optical connector can be floated in the in-plane direction. Therefore, even if the optical connector on the other side is displaced with respect to the optical connector, the optical connector floats in accordance with the optical connector on the other side and can absorb the misalignment and fit with the optical connector on the other side. it can. Therefore, the fitting property of the optical connector can be improved.

  The optical connector fixing member is composed of a single leaf spring, the end portions on both sides of the longitudinal center portion of the single leaf spring are bent, the central portion is a base portion, and the end portion is a protruding portion. The connector engaging portion and the board engaging portion are preferably formed by forming a hole in a single leaf spring, making a cut, bending it, or a combination thereof.

  The optical connector fixing member can be manufactured by a simple process such as forming a hole in one leaf spring, making a cut, bending it, or a combination thereof. For this reason, manufacturing cost can be reduced more.

  2nd this invention is an optical connector fixing method which fixes an optical connector to a board | substrate using an optical connector fixing member so that the fitting direction may cross | intersect with respect to a board | substrate, Comprising: In optical connector fixing member, plate shape And at least one of the base part and the projecting part is elastically deformable, and the base part is formed on the substrate. It has a board engaging part that engages with the opening part and a connector engaging part that engages with the engaging part of the optical connector, and the board engaging part protrudes away from the base more than the outer diameter of the optical fiber. A step of engaging the board engaging portion with the opening in a state where the base is opposed to the opening of the board and protruding to one side of the board, and the connector engaging portion is on the other side of the board. Engaging an engaging portion of an optical connector disposed on the optical connector It is another fixing method.

  According to this optical connector fixing method, the optical connector fixing member includes a plate-like base portion and protrusions standing on both sides in the longitudinal direction of the base portion, and at least one of the base portion and the protrusion portion is elastically deformed. Is possible. The protrusion has a substrate engaging portion that engages with the opening in a state where the base is opposed to the opening through which the optical fiber formed on the substrate is inserted and protrudes to one surface side of the substrate. Therefore, the optical connector fixing member can deform at least one of the base portion and the protruding portion, insert the protruding portion into the opening formed in the substrate, and engage the substrate engaging portion with the opening. Furthermore, the optical connector is fixed to the substrate by engaging the connector engaging portion provided on the protrusion with the connector engaging receiving portion of the optical connector. Thereby, an optical connector can be fixed to a board | substrate with an easy operation | work. In addition to this, the substrate engaging portion of the protrusion is engaged with the opening of the substrate in a state where the base is opposed to the opening formed in the substrate and protrudes to the other side of the substrate, and light is emitted from the base. The protrusion is provided at a distance greater than the outer diameter of the fiber. As a result, the base portion is opposed to the opening portion, and a space through which the optical fiber can be inserted is formed between the substrate and the base portion. Therefore, the optical fiber drawn from the opening portion of the substrate is easily bent in the direction along the substrate. It becomes possible. As a result, the operation of fixing the optical connector to the substrate and the operation of bending the optical fiber extending from the optical connector in the direction along the substrate can be more easily performed.

  The third aspect of the present invention includes an optical connector, a substrate, and an optical connector fixing member that fixes the optical connector to the substrate so that the fitting direction of the optical connector intersects the substrate. The base and the protrusions are provided to stand on both sides of the base in the longitudinal direction, the plate-like base and the protrusions to be provided on both sides of the base in the longitudinal direction are provided. At least one of the parts can be elastically deformed, and the protruding part is in a state where the base part is opposed to the opening part through which the optical fiber extending from the optical connector formed on the board is inserted and protruded to one surface side of the board. A board engaging portion that engages with the opening; and a connector engaging portion that engages with an engaging portion of an optical connector disposed on the other surface side of the substrate. Optical connector fixing provided on the protruding part at a distance greater than the outer diameter of It is an elephant.

  According to this optical connector fixing structure, the optical connector fixing member includes a plate-like base portion and protrusions standing on both sides in the longitudinal direction of the base portion, and at least one of the base portion and the protrusion portion is elastically deformed. Is possible. The protrusion has a substrate engaging portion that engages with the opening in a state where the base is opposed to the opening through which the optical fiber formed on the substrate is inserted and protrudes to one surface side of the substrate. Therefore, the optical connector fixing member can deform at least one of the base portion and the protruding portion, and can be inserted through the opening formed in the substrate to engage the substrate engaging portion with the opening. Further, the optical connector is fixed to the substrate by engaging the connector engaging portion of the optical connector with the connector engaging portion provided on the protrusion. Thereby, an optical connector can be fixed to a board | substrate with an easy operation | work. In addition to this, the substrate engaging portion of the protrusion is engaged with the opening of the substrate in a state where the base is opposed to the opening formed in the substrate and protrudes to the other side of the substrate, and light is emitted from the base. The protrusion is provided at a distance greater than the outer diameter of the fiber. As a result, the base portion is opposed to the opening portion, and a space through which the optical fiber can be inserted is formed between the substrate and the base portion. Therefore, the optical fiber drawn from the opening portion of the substrate is easily bent in the direction along the substrate. It becomes possible. As a result, the operation of fixing the optical connector to the substrate and the operation of bending the optical fiber extending from the optical connector in the direction along the substrate can be more easily performed.

  According to the present invention, the operation of fixing the optical connector to the substrate and the operation of bending and fixing the optical fiber extending from the optical connector in the direction along the substrate can be more easily performed.

It is a perspective view which shows the optical connector fixing structure of 1st Embodiment which concerns on this invention. It is a perspective view which shows the optical connector fixing structure of FIG. It is a perspective view which shows the optical connector fixing member of FIG. It is a figure explaining the optical connector fixing operation | work by the optical connector fixing member of FIG. It is a figure explaining the optical connector fixing operation | work by the optical connector fixing member of FIG. It is a figure explaining the optical connector fixing operation | work by the optical connector fixing member of FIG. It is a figure explaining the optical connector fixing operation | work by the optical connector fixing member of FIG. It is a figure explaining the optical connector fixing operation | work by the optical connector fixing member of FIG. It is a perspective view which shows the optical connector fixing structure of 2nd Embodiment which concerns on this invention. It is a perspective view which shows the optical connector fixing member of FIG. It is a figure explaining the optical connector fixing operation | work by the optical connector fixing member of FIG. It is a figure explaining the optical connector fixing operation | work by the optical connector fixing member of FIG. It is a figure explaining the optical connector fixing operation | work by the optical connector fixing member of FIG. It is a figure explaining the optical connector fixing operation | work by the optical connector fixing member of FIG. It is a figure explaining the optical connector fixing operation | work by the optical connector fixing member of FIG.

  Hereinafter, embodiments of the present invention will be described in detail.

  <First Embodiment>

  With reference to FIG. 1 thru | or FIG. 8, the optical connector fixing structure of 1st Embodiment which concerns on this invention is demonstrated.

  1 and 2 are perspective views showing the optical connector fixing structure 1 of the first embodiment. FIG. 1 is a perspective view of the substrate 3 as viewed from the surface (front surface) on which the optical connector 2 is disposed. In FIG. 1, in addition to the optical connector fixing structure 1, a mating optical connector 101 that fits with the optical connector 2 is also shown. FIG. 2 is a perspective view seen from the surface (back surface) opposite to the front surface of the substrate 3. FIG. 3 is a perspective view showing the optical connector fixing member 4.

The optical connector fixing structure 1 is, for example, an optical connector fixing structure formed on a backplane (back surface) of a housing of an information processing apparatus (not shown) (for example, a supercomputer).
The optical connector 101 is fixed to the board 102 along the fitting direction on the board 102 as a board to be inserted into the housing. The optical connector 101 is assembled at the end of the optical fiber cable 103. As the substrate 102 is inserted into the housing, the optical connector 101 is fitted into the optical connector 2, whereby the substrate 102 and the substrate 3 are optically connected. The optical connector 2 and the optical connector 101 used in this application are collectively referred to as a backplane connector.

  Note that an electrical connector (not shown) may be further provided on the board 3 and the board 102 so that they can be fitted to each other. When the substrate 102 is inserted into the housing, it can be electrically connected as well as optically connected.

  As shown in FIG. 1, the optical connector fixing structure 1 includes a rectangular parallelepiped optical connector 2, a substrate 3, a U-shaped optical connector fixing member 4 for fixing the optical connector 2 to the substrate 3, and An optical fiber cable 5 in which the optical connector 2 is assembled to the terminal is provided.

  Hereinafter, the positional relationship of each component will be described using an XYZ orthogonal coordinate system. In the optical connector fixing structure 1, the longitudinal direction of the optical connector 2 is the X direction, and the left side in FIG. The width direction of the optical connector 2 is defined as the Y direction, and the right direction in FIG. A direction perpendicular to the X direction and the Y direction in the thickness direction of the optical connector 2 is defined as a Z direction, and an upper direction in FIG. 1 in the Z direction is defined as a positive direction.

  The optical connector 2 is fixed to the substrate 3 so that the fitting direction thereof intersects the substrate 3. In the first embodiment and the second embodiment to be described later, the fitting direction of the optical connector 2 is the optical connector 2 longitudinal direction (X direction), and the direction orthogonal to the substrate 3 parallel to the Y direction and the Z direction. It has become.

  The optical connector 2 includes an optical connector main body 2a, an engagement recess 2b that can be engaged with an engagement claw 101b described later of the optical connector 101, a ferrule 2c held by the optical connector main body 2a, and an optical connector fixing member. 4 is provided with a connector engagement receiving portion 2d that engages with a connector engagement portion 4bc described later.

The optical connector body 2a is made of resin, for example. The optical connector body 2a is provided with an opening 2aa on the tip side (the X direction positive side). The optical connector body 2a holds the ferrule 2c so as to be exposed to the outside from the opening 2aa.
As shown in FIG. 1, the optical connector body 2a holds ferrules 2c and 2c arranged in the optical connector 2 width direction (Y direction). Here, the number of ferrules 2c held by the optical connector body 2a and the arrangement direction of the ferrules 2c are not particularly limited. It is also possible to hold the ferrules 2c arranged in a plurality of rows on the optical connector body 2a. The number of ferrules 2c in each column at that time is also arbitrary.

  In FIG. 1, the engagement recess 2b is provided on the side surfaces 2ad and 2ad on both sides in the thickness direction (Z direction) of the optical connector body 2a.

  The ferrule 2c is a so-called MT (Mechanically Transferable) ferrule, and is, for example, a resin molded product containing glass fiber at a high concentration. The ferrule 2c is, for example, a 16-core MT ferrule. For example, a total of 16 bare optical fibers 5b are arranged in two rows of 8 on the end face of the ferrule 2c on the front end side (the positive side in the X direction). These bare optical fibers 5b are coating removal portions provided at the ends of the optical fiber 5a led out to the end of the optical fiber cable 5. The number of bare optical fibers 5b arranged on the end face of the ferrule 2c, the number of rows, the number per row, etc. are not particularly limited.

  Each ferrule 2c is provided for each optical fiber cable 5 as shown in FIG. However, the ferrule 2 c is not necessarily provided for each optical fiber cable 5. For example, two ferrules 2 c may be provided at the end of one optical fiber cable 5.

  A guide pin 2cc is further provided on the end face of the ferrule 2c on the front end side, and the ferrule 2c is a male of the MT ferrule. However, the sexes of the ferrule 2c are not particularly limited, and a guide pin hole is provided instead of the guide pin 2cc if the female is an MT ferrule.

  The substrate 3 is, for example, an opto-electric hybrid circuit board on which a light receiving / emitting circuit and an electric circuit are mixed. The substrate 3 is formed with a rectangular opening 3 a through which the optical fiber cable 5 extending from the optical connector 2 is inserted.

  The optical connector fixing member 4 is made of metal, for example. The optical connector fixing member 4 is provided with a plate-like base portion 4a and protrusions 4b and 4b that stand on both sides of the base portion 4a in the longitudinal direction. In other words, the optical connector fixing member 4 has a U-shape that opens toward the tip in the longitudinal direction of the protrusion 4b (positive in the X direction). At least one of the base 4a and the protrusions 4b and 4b can be elastically deformed.

  The protrusion 4b includes a protrusion main body 4ba, a board engaging part 4bb that engages with the opening 3a of the board 3, and a connector engaging part 4bc that engages with the connector engaging receiving part 2d of the optical connector 2. Is provided.

  The optical connector fixing member 4 deforms at least one of the base portion 4a and the projection portion 4b to insert the projection portion 4b into the opening portion 3a formed in the substrate 3, and engages the substrate engagement portion 4bb with the opening portion 3a. Can be made.

  Further, the optical connector 2 is fixed to the substrate 3 by engaging the connector engaging portion 4bc provided on the protrusion 4b with the connector engaging receiving portion 2d of the optical connector 2. Thereby, an optical connector can be fixed to a board | substrate with an easy operation | work.

  In addition to this, the board engaging portion 4bb of the protrusion 4b is engaged with the opening 3a of the substrate 3 with the base 4a facing the opening 3a formed on the substrate 3 and protruding to the back side of the substrate 3. At the same time, the protrusion 4b is provided apart from the base 4a at a distance greater than or equal to the outer diameter of the optical fiber cable 5. As a result, as shown in FIG. 2, the base 4a is opposed to the opening 3a, and a space 6 (hereinafter referred to as an insertion space) 6 into which the optical fiber cable 5 can be inserted is formed between the opening 3a and the base 4a. . As a result, the optical fiber cable 5 drawn from the opening 3 a of the substrate 3 can be easily bent in the direction along the substrate 3. As a result, the operation of fixing the optical connector 2 to the substrate 3 and the operation of bending the optical fiber cable 5 extending from the optical connector 2 in the direction along the substrate 3 can be performed more easily.

  The insertion of the insertion space 6 between the opening 3a and the base 4a is not limited to the optical fiber cable 5, and for example, a protective tube is not provided, and the optical fiber 5a extending as it is from the optical connector 2 is provided. It may be. In that case, the substrate engaging portion 4bb may be separated from the base portion 4a to be larger than the outer diameter of the optical fiber 5a.

  In the insertion space 6, openings 6a and 6a are formed on both sides in the width direction (Z direction) of the base portion 4a. The optical fiber cable 5 can be extended to both sides in the width direction (Z direction) of the base portion 4a through the openings 6a and 6a. In FIG. 2, both of the two optical fiber cables 5 are extended from the opening 6a on the positive side in the Z direction.

  The optical fiber cable 5 includes, for example, an optical fiber 5a and a protective tube 5c that covers the outer periphery thereof.

  In the optical fiber cable 5, the optical fiber 5a is accommodated by a flexible protective tube 5c made of silicone resin. By using such a flexible material, a smaller bending radius can be realized. As the optical fiber 5a, for example, HAF (Hole Assisted Fiber) or the like can be used to suppress bending loss.

  The optical connector 101 is provided with a housing 101 a that holds a ferrule (not shown) and an engaging claw 101 b that engages with an engaging recess 2 b of the optical connector 2. The engaging claw 101b of the optical connector 101 engages with the engaging recess 2b of the optical connector 2, and the optical connector 101 and the optical connector 2 are fitted.

  The board engaging portion 4bb of the optical connector fixing member 4 has a first board contact piece 4bba and a second board contact piece 4bbb that come into contact with the surface of the board 3. At least one of the first substrate contact piece 4bba and the second substrate contact piece 4bbb is provided outside the protrusion 4b.

  At least one of the base 4a and the protrusion 4b can be elastically deformed such that the tips of the protrusions 4b and 4b are closer to each other than the base ends. For example, in the first embodiment and the second embodiment to be described later, both the base portion 4a and the protruding portion 4b can be elastically deformed. For this reason, the optical connector fixing member 4 is configured such that the substrate abutting pieces (for example, the second substrate abutting pieces 4bbb and 4bbb in the first embodiment) provided between the base 4a and the protruding portion are provided outside the protruding portion 4b. At least one of the 4b is elastically deformed to be close to each other. With that alone, the optical connector fixing member 4 can be inserted into the opening 3 a formed in the substrate 3. That is, the work of engaging the optical connector fixing member 4 with the substrate 3 can be performed more easily.

  More specifically, the optical connector fixing member 4 is composed of a single leaf spring, and bends the end portions on both sides of the longitudinal center portion of the single leaf spring, the central portion being a base portion 4a, The end portion is a projection 4b. The connector engaging portion 4bc and the board engaging portion 4bb are formed by forming a hole in a single leaf spring, making a cut, bending it, or a combination thereof. For example, in the first embodiment, as will be described later, the connector engaging portion 4bc and the board engaging portion 4bb are formed by a combination of formation and bending of a hole for one leaf spring.

  The optical connector fixing member 4 can be manufactured by a simple process such as forming a hole in one leaf spring, making a cut, bending it, or a combination thereof. For this reason, manufacturing cost can be reduced more.

  In the optical connector fixing member 4, at least one of the first substrate contact piece 4bba and the second substrate contact piece 4bbb is elastically deformable. (For example, in the first embodiment, only the second substrate contact piece 4bbb can be elastically deformed.)

  According to the optical connector fixing member 4, when the optical connector 101 applies stress in the longitudinal direction (X direction) to the optical connector 2, the first substrate contact piece 4bba or the second substrate contact piece 4bbb Due to the elastic deformation, the engagement of the optical connector fixing member 4 with the substrate 3 is weakened. For this reason, the optical connector 2 can float in the in-plane direction of the substrate 3 (Y direction and Z direction). Therefore, even if the optical connector 101 is displaced with respect to the optical connector 2, the optical connector 2 can float in accordance with the optical connector 101 and can be fitted to the optical connector 101 by absorbing the positional deviation. Therefore, the fitting property of the optical connector 2 can be improved.

  More specifically, as shown in FIG. 3, the first substrate contact piece 4bba is a set of standing erected from both sides in the width direction (Z direction) of the protrusion main body 4ba toward the outside of the protrusion main body 4ba. It is a part. Each standing portion is a protruding portion of the protrusion main body 4ba from the leaf spring, and the leaf spring is bent at a right angle at the boundary with the protrusion main body 4ba. Therefore, the first substrate contact piece 4bba is hereinafter referred to as an engagement standing pair 4bba as appropriate.

  In FIG. 3, the longitudinal direction of the protrusion 4b, which is the longitudinal direction of the optical connector 2 after the optical connector fixing structure 1 is assembled, is defined as the X direction, and the upper direction in the figure in the X direction is defined as the positive direction. Similarly, the longitudinal direction of the base 4a that is the width direction of the optical connector 2 is defined as the Y direction, and the right direction in the figure in the Y direction is defined as the positive direction. Similarly, a direction perpendicular to the X direction and the Y direction in the thickness direction of the optical connector 2 is defined as a Z direction, and a right direction in the figure in the Z direction is defined as a positive direction.

  Since the engaging standing pair 4bba is configured by a leaf spring along the longitudinal direction (X direction) of the protrusion 4ba, it is difficult to elastically deform in the X direction.

  As shown in FIG. 3, the second substrate abutting piece 4 bbb is a tongue portion surrounded by a U-shaped through-hole opened on the base end side (the side facing negative in the X method) on the leaf spring of the protrusion body 4 ba. It is formed as. The second substrate abutting piece 4bbb begins to bend outwardly from the protrusion main body 4ba at the base end of the tongue, and bends so that the angle formed with the protrusion main body 4ba increases toward the tip of the tongue. Yes. Further, the second substrate contact piece 4bbb is bent in the same direction as the base end side with a radius smaller than the base end at the tip, and is folded back to the base end side.

  The second substrate contact piece 4bbb contacts the substrate 3 at a curved surface at an intermediate portion in the longitudinal direction. Since the second substrate contact piece 4bbb contacts substantially parallel to the substrate 3, it is easily elastically deformable (elastically deformable) in the longitudinal direction (X direction) of the protrusion main body 4ba. For this reason, the second substrate contact piece 4bbb is hereinafter referred to as an engagement elastic piece 4bbb. When the engagement elastic piece 4bbb is elastically deformed, the substrate engagement portion 4bb can slidably engage the substrate 3. For this reason, the optical connector fixing member 4 can float with respect to the substrate 3.

  The width of the protrusion 4b is smaller than the dimension in the optical connector thickness direction (Z direction) of the opening 3a of the substrate 3, and the length of the base 4a is the dimension in the optical connector width direction (Y direction) of the opening 3a. Smaller. Thereby, a gap is formed on the outer side of the protrusion 4b inserted through the opening 3a of the substrate 3 and on both sides of the protrusion 4b in the width direction (Z direction). Accordingly, it is possible to ensure a floating range in the plane of the substrate 3 of the optical connector fixing member 4. When the optical connector fixing member 4 floats with respect to the substrate 3, the optical connector 2 fixed to the optical connector fixing member 4 can also float with respect to the substrate 3. Therefore, even if the optical connector 101 is misaligned with respect to the optical connector 2, the optical connector 2 can float with the optical connector 101 to absorb the misalignment and can be fitted to the optical connector 101. Therefore, the fitting property of the optical connector 2 can be improved.

  As shown in FIG. 2, the connector engagement receiving portion 2d that engages with the connector engagement portion 4bc is a plate-like shape projecting from each of the side surfaces 2ac and 2ac of the optical connector body 2a and parallel to the Y direction and the Z direction. It is a flange part. Therefore, hereinafter, the connector engagement receiving portion 2d is referred to as a flange portion 2d. The flange portions 2d and 2d are made of resin and are integrally formed with the optical connector main body 2a. The flange portion 2d can be elastically deformed. The flange portion 2d is provided with through holes 2db and 2db penetrating in the optical connector longitudinal direction (X direction).

  The connector engaging portion 4bc is inserted into the first connector abutting portion 4bca that abuts the base end side (X direction negative side) surface of the flange portion 2d of the optical connector 2, and the through hole 2db of the flange portion 2d. And a second connector abutting portion 4bcb that is provided in the inserting portion 4bcc and abuts against the surface of the flange portion 2d on the tip side (positive side in the X direction). The connector engaging portion 4bc engages the flange portion 2d between the first connector contact portion 4bca and the second connector contact portion 4bcb in a state where the insertion portion 4bcc is inserted through the through hole 2db. Thereby, the optical connector 2 is fixed to the optical connector fixing member 4.

  As shown in FIG. 3, the insertion part 4bcc is formed as an extension part to the front end side (X direction positive side) of the leaf | plate spring of the projection part main body 4ba.

  The first connector abutting portion 4bca is an extension portion of the protruding portion main body 4ba to the distal end side of the leaf spring, and is provided on both sides in the width direction (Z direction) of the insertion portion 4bcc. In this example, the 1st connector contact part 4bca has a width | variety larger than the insertion part 4bcc, and comprises the shoulder part. Therefore, the first connector contact portion 4bca is hereinafter referred to as an engagement shoulder portion 4bca. Since the engagement shoulder 4bca is constituted by a leaf spring along the longitudinal direction (X direction) of the protrusion, it is difficult to elastically deform in the X direction.

  The second connector abutting portion 4bcb is formed as a tongue portion surrounded by a U-shaped through hole opened on the distal end side (X direction positive side) on the leaf spring of the insertion portion 4bcc. The second connector contact portion 4bcb is bent at an acute angle from the insertion portion 4bcc to the outside of the insertion portion 4bcc at the base end of the tongue. Therefore, the second connector contact portion 4bcb is hereinafter referred to as a bent engagement portion 4bcb. The bent engagement portion 4bcb is inclined with respect to the protrusion longitudinal direction (X direction), and is easily elastically deformed in that direction.

  When the thickness of the flange portion 2d is made approximately the same as the distance between the tip of the bent engagement portion 4bcb and the engagement shoulder portion 4bca, the flange portion 2d is not easily displaced between the bent engagement portion 4bcb and the engagement shoulder portion 4bca. Thus, the flange portion 2d can be more reliably engaged.

  The through hole 2db of the flange portion 2d is a rectangular hole that is long in the flange portion 2d width direction (Z direction). The short side of the square hole of the through hole 2db is shorter than the protrusion length Lb of the bent engagement portion 4bcb from the protrusion main body 4ba. This protrusion length Lb will be further described later with reference to FIG. The long side of the through hole 2db is larger than the width of the insertion portion 4bcc. As a result, the insertion portion 4bcc can be inserted into the through hole 2d.

  On the side surface of the short side of the through hole 2db, the movement of the insertion portion 4bcc in the flange portion 2d width direction (Z direction) is restricted.

  A procedure for fixing the optical connector 2 to the substrate 3 using the optical connector fixing member 4 will be described with reference to FIGS.

  4 to 8 are side views showing the optical connector fixing structure 1. This side view is a view seen from the width direction (Z direction) of the optical connector 2 in the optical connector fixing structure 1.

  First, as shown in FIG. 4, the optical connector fixing member 4 is disposed so that the side opposite to the U-shaped open side (the negative side in the X direction) faces the substrate 3 and the base 4a faces the opening 3a. To approach the surface of the substrate 3. The approaching operation is performed by gripping the tips of the protrusions 4b and 4b, for example, but the gripping may be performed by a human finger, a robot arm, or the like.

  In the optical connector fixing member 4, the length Lp of the base portion 4 a to be inserted first is smaller than the width in the Y direction of the opening portion 3 a of the substrate 3 (hereinafter referred to as opening portion width) Ls. For this reason, the base 4a can be inserted into the opening 3a. However, the engagement elastic piece 4bbb of the protrusion 4b protrudes outward from the protrusion body 4ba. That is, the distance between the Y-direction negative end of the right engagement elastic piece 4bbb in the drawing and the Y-direction positive end of the left engagement elastic piece 4bbb in the drawing (hereinafter referred to as the engagement elastic piece passing width). La is larger than the width (hereinafter referred to as opening width) Ls of the opening 3a of the substrate 3 in the Y direction. Therefore, in this state, the engaging elastic piece 4bbb cannot be inserted into the opening 3a.

  Next, the base 4a and the protrusion 4b are elastically deformed so that the tips of the protrusions 4b and 4b are closer to each other than the base ends. Thereby, the engagement elastic piece 4bbb on the right side in the drawing and the engagement elastic piece 4bbb on the left side in the drawing are close to each other, and the engagement elastic piece passing width La can be made smaller than the opening width Ls. As a result, the engagement elastic pieces 4bbb and 4bbb can be inserted into the opening 3a.

  As shown in the enlarged view of the engagement elastic piece 4bbb on the right side in FIG. 5, the above-described folded portion of the engagement elastic piece 4bbb is curved so as to be inward as it goes in the negative direction in the X direction. And a second curved portion yy that curves outward as it goes in the negative direction of the X direction.

  When the folded portion of the engagement elastic piece 4bbb starts to be inserted into the opening 3a, the first curved portion xx comes into contact with the side surface of the opening 3a of the substrate 3. The first curved portion xx is curved so as to go inward as it goes in the negative direction in the X direction. For this reason, only by pushing the optical connector fixing member 4 toward the substrate 3, the base 4a and the protrusion 4b are elastically deformed so that the engagement elastic piece passageable width La is reduced. Thus, the first curved portion xx of the engagement elastic piece 4bbb serves to assist the insertion of the engagement elastic piece 4bbb into the opening 3a.

  Thereafter, when the folded portion of the engagement elastic piece 4bbb starts to protrude toward the back surface side, the second curved portion yy comes into contact with the side surface of the opening 3a of the substrate 3. The second curved portion yy is curved so as to go outward as it goes in the negative direction in the X direction. For this reason, only by pushing the optical connector fixing member 4 toward the substrate 3, the base 4a and the protrusion 4b are elastically deformed so that the engagement elastic piece passing width La is enlarged. Thus, the second curved portion yy of the engagement elastic piece 4bbb serves to assist the protrusion of the engagement elastic piece 4bbb toward the back side of the substrate 3.

  Thereafter, since the base 4a and the protrusion 4b return to before the elastic deformation, the substrate 3 enters between the engagement elastic piece 4bbb and the engagement standing pair 4bba.

  As shown in FIG. 6, when the substrate 3 enters between the engagement elastic piece 4bbb and the engagement standing pair 4bba until the base 4a and the projection 4b are in an original state orthogonal to each other, the optical connector fixing member 4 Engagement with the opening 3a of the substrate 3 is completed.

  When the engagement of the optical connector fixing member 4 with the opening 3a of the substrate 3 is completed, an insertion space 6 into which the optical fiber cable 5 can be inserted is formed between the opening 3a and the base 4a.

  Next, the optical connector 2 is prepared, and each of the two optical fiber cables 5 extending from the optical connector 2 is inserted into the opening 3 a and the insertion space 6 of the substrate 3. Each optical fiber cable 5 is allowed to pass through any one of the openings 6 a of the insertion space 6. In FIG. 7, both optical fiber cables 5 are inserted through the opening 6a on the positive side in the Z direction.

  As shown in FIG. 7, in a state where the optical fiber cable 5 is inserted into the insertion space 6, the optical connector 2 is brought closer to the substrate 3 with its proximal end facing the substrate 3 (in the X direction). At this time, the through holes 2db and 2db of the optical connector 2 are opposed to the insertion portions 4bcc and 4bcc of the optical connector fixing member 4, respectively.

  Next, when the optical connector 2 is moved toward the substrate 3 with the through holes 2db and 2db facing the insertion portions 4bcc and 4bcc, the tips of the insertion portions 4bcc and 4bcc are inserted into the through holes 2db and 2db. Go. At this time, the bending engagement portion 4bcb abuts against the side surface of the through hole 2db and elastically deforms, whereby the protrusion length Lb from the protrusion main body 4ba is reduced.

  When the optical connector 2 is further moved toward the board 3, the base end surface of the flange portion 2d comes into contact with the engagement shoulder portion 4bca. In this state, the bent engagement portion 4bcb remains in contact with the side surface of the through hole 2db. Therefore, each of the flange portions 2d and 2d is pressed toward the base end side (the negative side in the X direction) to be elastically deformed. As a result, the bending engagement portion 4bcb passes through the through hole 2db, the bending engagement portion 4bcb returns to the state before elastic deformation, and the protruding length Lb of the bending engagement portion 4bcb returns. As a result, as shown in FIG. 8, the flange portion 2d is sandwiched between the engaging shoulder portion 4bca and the bent engaging portion 4bcb, and the connector engaging portion 4bc is engaged with the flange portion 2d.

Thereby, fixation to the board | substrate 3 of the optical connector 2 is completed.
Second Embodiment

  The optical connector fixing structure according to the second embodiment of the present invention will be described with reference to FIGS.

  FIG. 9 is a perspective view showing the optical connector fixing structure 11 of the second embodiment. FIG. 9 is a perspective view of the substrate 3 as viewed from the surface on which the optical connector 2 is disposed.

  In the optical connector fixing structure 11 of the second embodiment, an optical connector 12 and an optical connector fixing member 14 are employed in place of the optical connector 2 and the optical connector fixing member 4, respectively. This is the same as the optical connector fixing structure 1. Therefore, in the optical connector fixing structure 11 of the second embodiment, the corresponding parts in the optical connector fixing structure 1 of the first embodiment are denoted by the same reference numerals, and the description thereof is omitted as appropriate.

  The optical connector 12 of the second embodiment employs a connector engagement receiving portion 12d instead of the connector engagement receiving portion 2d, and is otherwise the same as the optical connector 2 of the first embodiment. Therefore, in the optical connector 12 of the second embodiment, the same reference numerals are given to corresponding portions in the optical connector 2 of the first embodiment, and the description thereof is omitted as appropriate.

  The connector engagement receiving portion 12d is an engagement receiving portion that engages with a later-described connector engagement portion 14bc of the optical connector fixing member 14.

  The optical connector fixing member 14 of the second embodiment employs a protruding portion 14b instead of the protruding portion 4b, and is otherwise the same as the optical connector fixing member 4 of the first embodiment. Therefore, in the optical connector fixing member 14 of the second embodiment, the same reference numerals are given to the corresponding parts in the optical connector fixing member 4 of the first embodiment, and the description thereof is omitted as appropriate.

  In the optical connector fixing structure 11, the longitudinal direction of the optical connector 12 is the X direction, and the left side in the figure in the X direction is the positive direction. The width direction of the optical connector 12 is the Y direction, and the right direction in the figure in the Y direction is the positive direction. A direction perpendicular to the X direction and the Y direction in the thickness direction of the optical connector 12 is defined as a Z direction, and an upper direction in the figure in the Z direction is defined as a positive direction.

  With reference to FIG. 10, the protrusion part 14b of the optical connector fixing member 14 is further demonstrated.

  FIG. 10 is a perspective view showing the optical connector fixing member 14.

  In FIG. 10, the longitudinal direction of the protrusion 14 b that becomes the longitudinal direction of the optical connector 12 after the optical connector fixing structure 11 is assembled is the X direction, and the lower direction in the figure in the X direction is the positive direction. The longitudinal direction of the base 4a that is the width direction of the optical connector 12 is defined as the Y direction, and the right direction in the figure in the Y direction is defined as the positive direction. The direction orthogonal to the X direction and the Y direction, which are the optical connector 12 thickness direction, is defined as the Z direction, and the right direction in the figure in the Z direction is defined as the positive direction.

  The protrusion 14b includes a protrusion main body 14ba, a board engaging part 14bb that engages with the opening 3a of the board 3, and a connector engaging part 14bc that engages with the connector engagement receiving part 12d of the optical connector 12. Is provided.

  The substrate engaging portion 14bb has a first substrate contact piece 14bba that contacts the surface of the substrate 3 and a second substrate contact piece 14bbb that contacts the back surface of the substrate 3. At least one of the first substrate contact piece 14bba and the second substrate contact piece 14bbb is provided outside the protrusion 14b.

  At least one of the base 14a and the protrusion 14b can be elastically deformed so that the tips of the protrusions 14b and 14b are closer to each other than the base ends. In the second embodiment, both the base 4a and the protrusion 4b are elastically deformable. For this reason, the optical connector fixing member 14 is configured such that the substrate contact pieces (for example, the first substrate contact pieces 4bba and 4bba in the second embodiment) provided on the outside of the protrusion 14b are connected to each other between the base 4a and the protrusion. At least one of the 4b is elastically deformed to be close to each other. With that alone, the optical connector fixing member 14 can be inserted into the opening 3 a formed in the substrate 3. That is, the work of engaging the optical connector fixing member 4 with the substrate 3 can be performed more easily.

  More specifically, the optical connector fixing member 14 is composed of a single leaf spring, and bends end portions on both sides of the longitudinal center portion of the single leaf spring so that the central portion is a base portion 4a, The end portion is a projection 4b. The connector engaging portion 14bc and the board engaging portion 14bb are formed by forming a hole in one leaf spring, making a cut, bending it, or a combination thereof. For example, in the second embodiment, as will be described later, the connector engaging portion 14bc is formed by forming a hole for one leaf spring. The board engaging portion 14bb is formed by a combination of forming and bending a hole for one leaf spring.

  The optical connector fixing member 14 can be manufactured by simple processing. For this reason, manufacturing cost can be reduced more.

  In the optical connector fixing member 14, at least one of the first substrate contact piece 4bba and the second substrate contact piece 4bbb is elastically deformable. (For example, in the second embodiment, only the first substrate contact piece 4bba can be elastically deformed.)

  According to the optical connector fixing member 14, when the optical connector 101 applies stress in the longitudinal direction (X direction) to the optical connector 12, the first substrate contact piece 14bba or the second substrate contact piece 14bbb Due to elastic deformation, the engagement of the optical connector fixing member 14 with the substrate 3 is weakened. For this reason, the optical connector 12 can float in the in-plane direction (Y direction and Z direction) of the substrate 3. Therefore, even if the optical connector 101 is displaced with respect to the optical connector 12, the optical connector 12 can float in accordance with the optical connector 101 and can be fitted to the optical connector 101 by absorbing the displacement. Therefore, the fitting property of the optical connector 12 can be improved.

  More specifically, as shown in FIG. 10, the first substrate contact piece 14bba is an extended portion obtained by extending the leaf spring of the protruding portion main body 14ba to the distal end side, and the protruding portion at the boundary with the protruding portion main body 14ba. It is bent outward so that the angle formed with the main body 14ba is an acute angle. The first substrate contact piece 14bba is further bent at the tip zz so as to be substantially parallel to the protrusion main body 14ba. Accordingly, the first substrate contact piece 14bba is hereinafter referred to as a bending engagement arm portion 14bba as appropriate.

  Since the bending engagement arm portion 14bba is composed of a leaf spring that is inclined with respect to the protrusion longitudinal direction (X direction) except for the tip zz, it is easily elastically deformed in that direction. As the bending engagement arm portion 14bba is elastically deformed, the substrate engagement portion 14bb can slidably engage the substrate 3. For this reason, the optical connector fixing member 14 can float with respect to the substrate 3.

  As shown in FIG. 10, the second substrate contact piece 14bbb is a tongue portion surrounded by a U-shaped through-hole opened on the base end side (in the negative direction in the X direction) on the leaf spring constituting the protrusion main body 14ba. It is formed as. The second substrate contact piece 14bbb is bent at right angles to the outside of the protrusion main body 14ba at the base end of the tongue. Therefore, hereinafter, the second substrate contact piece 14bbb is referred to as an engagement bent piece 14bbb.

  Although the engagement bent piece 14bbb is orthogonal to the longitudinal direction (X direction) of the protrusion 14b, but is in contact with the substrate 3 including the base end that is not easily elastically deformed, it is elastically deformed in the longitudinal direction (X direction) of the protrusion. It has become difficult.

  The connector engagement receiving portion 12d that engages with the connector engagement portion 14bc is an engagement reception portion that engages with a connector engagement portion 14bc, which will be described later, of the optical connector fixing member 14.

  More specifically, as shown in FIG. 9, the connector engagement receiving portion 12d is a convex portion provided on each of the side surfaces 2ac and 2ac of the housing body 2a. Therefore, hereinafter, the connector engagement receiving portion 12d will be appropriately referred to as an engagement convex portion 12d. The engagement convex portion 12d is made of, for example, resin and is integrally formed with the housing body 2a.

  As shown in FIG. 10, the connector engaging portion 14bc is formed as a through hole in the leaf spring of the protruding portion main body 14ba. Therefore, the connector engaging portion 14bc is hereinafter referred to as a connector engaging hole 14bc. The connector engagement hole 14bc engages with the engagement convex portion 12d of the optical connector 12. The engaging protrusion 12d is a protrusion elongated in the width direction (Z direction) of the protrusion main body 14ba.

  The movement of the engaging projection 12d in the longitudinal direction (X direction) of the projection main body 14ba is restricted by the side surfaces of the connector engaging hole 14bc on both sides in the longitudinal direction (X direction) of the projection main body 14ba. The movement of the engagement protrusion 12d in the width direction (Z direction) of the protrusion main body 14ba is restricted by the side surfaces of both sides of the protrusion main body 14ba in the width direction (Z direction) of the connector engagement hole 14bc.

  A procedure for fixing the optical connector 12 to the substrate 3 using the optical connector fixing member 14 will be described with reference to FIGS. 11 to 15.

  11 to 15 are side views showing the optical connector fixing structure 11. This side view is a view seen from the width direction (Z direction) of the optical connector 12 in the optical connector fixing structure 11.

  First, as shown in FIG. 11, the optical connector fixing member 14 is placed on the back surface of the substrate 3 with the U-shaped open side (projection 14b side) facing the substrate 3 and the base 4a facing the opening 3a. Get closer.

  In the optical connector fixing member 14, the bending engagement arm portion 14bba of the protruding portion 14b that is inserted first protrudes outward from the protruding portion main body 14ba. That is, the distance between the negative end in the Y direction of the bending engagement arm portion 14bba on the right side in the drawing and the positive end in the Y direction of the engagement elastic piece 4bbb on the left side in the drawing (hereinafter, it can pass through the bending engagement arm portion). Lx (referred to as width) is larger than the opening width Ls of the opening 3a.

  However, the bending engagement arm portion 14bba is inclined to the outside of the protrusion main body 14ba toward the base end side in the direction of the protrusion main body 14ba (the negative side in the X direction). For this reason, when the optical connector fixing member 14 is brought closer to the substrate 3, the tips of the protrusions 14 b and 14 b are inserted into the opening 3 a of the substrate 3. At this time, the bending engagement arm 14bba is pressed inward by the side surface of the opening 3a, and the protrusion main bodies 14ba and 14ba are also pressed inward, and the protrusion main bodies 14ba and 14ba have their distal ends at the base ends. The base 4a and the protrusion 14b are elastically deformed so as to be closer to each other.

  As a result, as shown in FIG. 12, the bending engagement arm portion passing width Lx of the bending engagement arm portion 14bba of the projection 14b becomes smaller than the opening width Ls, and the bending engagement arm portions 14bba and 14bba are opened. It can be inserted into the part 3a.

  When the tip end zz of the bending engagement arm portion 14bba is protruded to the surface side of the substrate 3, the base portion 4a and the projection portion 14b return before elastic deformation. At this time, the substrate 3 enters between the distal end zz of the bending engagement arm portion 14bba and the engagement bending piece 14bbb.

  As shown in FIG. 13, when the substrate 3 enters between the distal end zz of the bending engagement arm portion 14bba and the engagement elastic piece 4bbb until the base portion 4a and the projection main body 14ba are in an original state orthogonal to each other, Engagement of the connector fixing member 14 with the opening 3a of the substrate 3 is completed.

  When the engagement of the optical connector fixing member 14 with the substrate 3 is completed, an insertion space 6 into which the optical fiber cable 5 can be inserted is formed between the opening 3a and the base 4a.

  Next, the optical connector 12 is prepared, and each of the two optical fiber cables 5 extending from the optical connector 12 is inserted into the opening 3 a and the insertion space 6 of the substrate 3. Each optical fiber cable 5 is allowed to pass through any one of the openings 6 a of the insertion space 6. In FIG. 14, both optical fiber cables 5 are inserted through the opening 6a on the positive side in the Z direction.

  As shown in FIG. 14, in a state where the optical fiber cable 5 is inserted into the insertion space 6, the optical connector 12 is brought closer to the substrate 3 (X direction) with its proximal end facing the substrate 3. At this time, the engaging projections 12d and 12d of the optical connector 12 are opposed to the protrusion main bodies 14ba and 14ba of the optical connector fixing member 14, respectively.

  Next, the base 4a and the protrusion 14b are elastically deformed so that the distance between the tips of the protrusion main bodies 14ba and 14ba is increased. The optical connector 12 is sandwiched between the protrusion main bodies 14ba and 14ba whose distances between the tips are increased. Thereby, each of protrusion part main body 14ba and 14ba and each of engagement convex part 12d of optical connector 12 and 12d contact | abut.

  When the optical connector 12 is further moved closer to the substrate 3 while the projection main bodies 14ba and 14ba are in contact with the engagement projections 12d and 12d of the optical connector 12, the engagement projections 12d and 12d are respectively However, it reaches the respective positions of the connector engaging holes 14bc and 14bc. Then, the base 4a and the protrusion 14b return to before the elastic deformation, and the engagement protrusions 12d and 12d engage with the connector engagement holes 14bc and 14bc, respectively, as shown in FIG.

  Thereby, fixation to the board | substrate 3 of the optical connector 12 is completed.

  The optical connector fixing structure according to the present invention is not particularly limited to the first and second embodiments described above, and various modifications can be made. For example, the present invention can be applied not only to devices that employ the backplane and middle plane described above, but also to any device that uses an optical connector whose fitting direction is orthogonal to the substrate.

  DESCRIPTION OF SYMBOLS 1 ... Optical connector fixing structure, 2 ... Optical connector, 2a ... Housing main body, 2b ... Engagement recess, 2c ... Ferrule, 2d ... Connector engagement receiving part, flange part, 2db ... Through-hole, 3 ... Substrate, 3a ... Opening portion, 4... Optical connector fixing member, 4 a... Base portion, 4 b... Projection portion, 4 ba... Projection portion main body, 4 bb ... substrate engagement portion, 4 bba. Second board contact piece, engagement elastic piece, 4bc ... connector engagement part, 4bca ... first connector contact part, engagement shoulder part, 4bcb ... second connector contact part, bending engagement part, 4bcc ... Insertion part, 5 ... optical fiber cable, 5a ... optical fiber strand, 5c ... protective tube, 6 ... insertion space, 11 ... optical connector fixing structure, 12 ... optical connector, 12a ... housing body, 12d ... connector engagement receiving part , Engaging projection, 14... Optical connector Fixed member, 14b ... projection, 14ba ... projection body, 14bb ... substrate engagement portion, 14bba ... first substrate contact piece, bending engagement arm, 14bbb ... second substrate contact piece, engagement bending piece, 14bc: connector engaging portion, connector engaging hole, 101: optical connector, 102: substrate, 103: optical fiber cable.

Claims (6)

An optical connector fixing member that fixes the optical connector to the board so that the fitting direction thereof intersects the board,
A plate-like base, and protrusions erected on both sides in the longitudinal direction of the base,
At least one of the base and the protrusion is elastically deformable,
The protrusion is engaged with the opening in a state where the base is opposed to an opening through which an optical fiber extending from the optical connector formed on the substrate is inserted and protruded to one surface side of the substrate. A board engaging portion, and a connector engaging portion that engages with an engaging portion of the optical connector disposed on the other surface side of the substrate,
The said board | substrate engaging part is an optical connector fixing member provided in the said protrusion part spaced apart from the said base part more than the outer diameter of the said optical fiber. The substrate engaging portion has a pair of contact pieces that respectively engage with the substrate from both sides thereof,
At least one of the pair of contact pieces is provided outside the protrusion,
The optical connector fixing member according to claim 1, wherein at least one of the base portion and the protrusion portion is elastically deformable so that distal ends of the protrusion portions are closer to each other than base ends. The optical connector fixing member according to claim 2, wherein at least one of the pair of contact pieces is elastically deformable. Consists of one leaf spring,
The end portions on both sides sandwiching the center portion in the longitudinal direction of the single leaf spring are bent, the center portion is the base portion, and the end portion is the protrusion.
The light according to claim 1, wherein the connector engaging portion and the substrate engaging portion are formed by forming a hole in the one leaf spring, making a cut, bending, or a combination thereof. Connector fixing member. An optical connector fixing method for fixing an optical connector to the substrate using an optical connector fixing member so that its fitting direction intersects the substrate,
The optical connector fixing member has a plate-like base, and protrusions that are erected on both sides in the longitudinal direction of the base,
At least one of the base and the protrusion is elastically deformable,
The protrusion has a base plate engaging portion that engages the base portion with the opening formed in the base plate, and a connector engaging portion that engages with an engaging portion of the optical connector,
The substrate engaging portion is provided on the protrusion so as to be separated from the base by an outer diameter of the optical fiber or more.
Engaging the substrate engaging portion with the opening in a state where the base is opposed to the opening of the substrate and protruded to one surface side of the substrate;
Engaging the connector engaging portion with the engaging portion of the optical connector disposed on the other surface side of the substrate. An optical connector, a board, and an optical connector fixing member that fixes the optical connector to the board so that the fitting direction of the optical connector intersects the board;
The optical connector fixing member has a plate-like base, and protrusions that are erected on both sides in the longitudinal direction of the base,
A plate-like base, and protrusions erected on both sides in the longitudinal direction of the base,
At least one of the base and the protrusion is elastically deformable,
The protrusion is engaged with the opening in a state where the base is opposed to an opening through which an optical fiber extending from the optical connector formed on the substrate is inserted and protruded to one surface side of the substrate. A board engaging portion, and a connector engaging portion that engages with an engaging portion of the optical connector disposed on the other surface side of the substrate,
The optical connector fixing structure, wherein the board engaging portion is provided on the protruding portion so as to be separated from the base portion by an amount equal to or larger than an outer diameter of the optical fiber.

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